CN109494090A - Transfer switch unit and multi-pole switching device including the transfer switch unit - Google Patents
Transfer switch unit and multi-pole switching device including the transfer switch unit Download PDFInfo
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- CN109494090A CN109494090A CN201710821333.4A CN201710821333A CN109494090A CN 109494090 A CN109494090 A CN 109494090A CN 201710821333 A CN201710821333 A CN 201710821333A CN 109494090 A CN109494090 A CN 109494090A
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- moving contact
- connecting rod
- switch unit
- open position
- connection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0016—Contact arrangements for tap changers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0027—Operating mechanisms
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- Mechanisms For Operating Contacts (AREA)
Abstract
A kind of transfer switch unit comprising: the first moving contact is respectively used to connection with connection position and open position and disconnects common power supply static contact and load the electrical connection between first terminal；Second moving contact is respectively used to connection with connection position and open position and disconnects backup power source static contact and load the electrical connection between Second terminal；First connecting rod；Second connecting rod；Mechanism main shaft is connect with the first moving contact by first connecting rod and is connect by second connecting rod with the second moving contact；The motion actuation first connecting rod and second connecting rod of mechanism main shaft, so that the transfer switch unit has following working condition: first moving contact is in connection position, and second moving contact is in open position；Second moving contact is in connection position, and first moving contact is in open position；First moving contact and second moving contact are in open position simultaneously.A kind of multi-pole switching device comprising transfer switch unit as described above.
Description
Technical field
This disclosure relates to a kind of transfer switch unit, further refer to a kind of including the transfer switch unit
Multi-pole switching device.
Background technique
The responsibility of double power supply automatic transfer switch is that power supply guarantees that the reliability of product is that the technology that user most pays close attention to refers to
Mark.There is provided the simple and reliable change-over switch arrangement of one kind has very important meaning to the reliability for improving change-over switch, because
And it is the tireless pursuit of engineers in the industry.
Existing change-over switch is the change-over switch of two positions, and two positions refer to that the moving contact of change-over switch can only be in power supply
Switch between I and the static contact of power supply II, i.e., is by giving and fixing when switch designs to the conversion time of power supply II from power supply I
It is constant；Its moving contact is connected with one of them static contact always, so that the load wiring end being connected with moving contact be made to charge always.
There are at least two application limitations for such product: cannot change the conversion time of power supply by the control of controller to meet journey
The needs of sequence conversion；Electrical isolation application demand when plant maintenance cannot be provided.
At present, it is accordingly required in particular to which a kind of change-over switch of three positions, three positions refer to the moving contact of change-over switch in addition to that can stop
It stays in outer on the static contact of power supply I and power supply II, moreover it is possible to rest on double points all discontiguous with the static contact of power supply I and power supply II
Position.Such product can provide two kinds of application functions recited above.In addition, the reliability of change-over switch be user very
One index of concern, and the simple change-over switching mechanism of structure is to provide the key of this reliability.
Summary of the invention
In view of the above-mentioned problems, present disclosure provides a kind of transfer switch unit based on switch disjunction unit, to obtain
Obtain the guarantee of reliability.
According to one aspect of the present disclosure, a kind of transfer switch unit is provided comprising: the first moving contact, tool
There are connection position and open position to be respectively used to connection and disconnect common power supply static contact and load being electrically connected between first terminal
It connects；Second moving contact is respectively used to connection with connection position and open position and disconnects backup power source static contact and load
Electrical connection between Second terminal；First connecting rod；Second connecting rod；Mechanism main shaft passes through the first connecting rod and described first
Moving contact is connected and is connect by the second connecting rod with second moving contact；Described in the motion actuation of the mechanism main shaft
First connecting rod and the second connecting rod, so that the transfer switch unit has following working condition:
● first moving contact is in connection position, and second moving contact is in open position；
● second moving contact is in connection position, and first moving contact is in open position；
● first moving contact and second moving contact are in open position simultaneously.
According to the other side of present disclosure, the transfer switch unit further include:
First elastomeric element is arranged to first moving contact towards open position bias and makes described first
Moving contact can reach its most large opening position；And second elastomeric element, it is arranged to second moving contact towards disconnected
Open position bias and second moving contact is enabled to reach its most large opening position.
According to the above various aspects of present disclosure, wherein one end of the mechanism main shaft and the first connecting rod its
Middle one end connection；The other end of the mechanism main shaft is connect with wherein one end of the second connecting rod.
According to the above various aspects of present disclosure, wherein one end of the first connecting rod and the second connecting rod its
Middle one end is connect with one end of the mechanism main shaft.
According to the above various aspects of present disclosure, the other end of the first connecting rod is provided with the first elongated slot, institute
The first pin of setting on the first moving contact is stated, first pin is arranged to be slidably matched in first elongated slot.
The other end of the second connecting rod is provided with the second elongated slot, and the second pin of setting, described on second moving contact
Second pin is arranged to be slidably matched in second elongated slot.
According to the above various aspects of present disclosure, it is described first pin with first elongated slot be slidably matched and
Second pin is configured such that the transfer switch unit has following work with being slidably matched for second elongated slot
State:
● the first connecting rod described in the motion actuation of the mechanism main shaft so that first elongated slot wherein one
When end is combined with first pin and pushes the described first pin, first moving contact overcomes the power of first elastomeric element
It is moved towards the direction for commonly using the electrical connection between power supply static contact and the load first terminal described in connection, until described the
One moving contact is in the connection position, and second pin is in shape free to slide in second elongated slot in the process
State, second elastomeric element deflect second moving contact towards open position, disconnect so that second moving contact is in
Position and remain motionless；
● the second connecting rod described in the motion actuation of the mechanism main shaft so that second elongated slot wherein one
When end is combined with second pin and pushes the described second pin, second moving contact overcomes the power of second elastomeric element
It is moved towards the direction of the electrical connection between backup power source static contact described in connection and the load Second terminal, until described the
Two moving contacts are in the connection position, and first pin is in shape free to slide in first elongated slot in the process
State, first elastomeric element deflect first moving contact towards open position, disconnect so that first moving contact is in
Position and remain motionless.
Since second elongated slot has certain length, so when the first moving contact is in the movement towards connection position
In the process, the second connecting rod not will drive the second moving contact rotation, and then second moving contact is in second bullet
Its most large opening position, i.e. open position are remained under the action of property component.
Since first elongated slot has certain length, so when second moving contact is towards connection position
In motion process, the first connecting rod not will drive first moving contact rotation, and then first moving contact is described the
Its most large opening position, i.e. open position is remained under the action of one elastomeric element.
According to the above various aspects of present disclosure, first moving contact and first elastomeric element setting are the
On one moving contact retainer；Second moving contact and second elastomeric element are arranged on the second moving contact retainer.
According to the above various aspects of present disclosure, wherein one end of first moving contact can be quiet with common power supply
The other end of contact electrical contact, first moving contact can be with load first terminal electrical contact；Second moving contact its
Middle one end can be in electrical contact with backup power source static contact, and the other end of second moving contact can connect with load Second terminal electricity
Touching.
A kind of multi-pole switching device is also provided according to present disclosure comprising transfer switch unit as described above.
According to this disclosure provides a kind of change-over switch of three positions, moving contact therein is in addition to that can rest on above
It is outer on the static contact of common power supply and backup power source, moreover it is possible to rest on and not contacted with the static contact of common power supply and backup power source
Double quartiles set.In addition, multi-connecting-rod mechanism is utilized in the change-over switch according to present disclosure, turn with this simple structure
Change the reliability that switching device improves whole device.
It solves limitation in the prior art according to the product of present disclosure, not only realizes the control by controller
Change the conversion time of power supply to meet the needs of Program transformation, the application for additionally providing electrical isolation when plant maintenance needs
It asks.
So far, it is better understood in order to which present disclosure detailed description in this is available, and in order in the disclosure
Appearance can preferably be realized the contribution of the prior art, and the disclosure quite widely outlines the interior of present disclosure
Hold.Certainly, the embodiment of present disclosure is described below and will form the theme of appended claims.
Similarly, it would be recognized by those skilled in the art that the design that the disclosure is based on can be easily used as designing it
The basis of its structure, method and system, for implementing several purposes of present disclosure.It is important, therefore, that appended right is wanted
It asks it will be understood that including such equivalent structure, as long as they are without departing from the spirit and scope of present disclosure.
Detailed description of the invention
Present disclosure will be better understood by following attached drawing those skilled in the art, and more can be clearly
The advantages of embodying present disclosure.Attached drawing described herein rather than all may be used only for the illustration purpose of selected embodiment
Can embodiment and be intended to not limit scope of the present disclosure.
Fig. 1 to Fig. 6 is the schematic diagram according to the first embodiment of the transfer switch unit of present disclosure；
Fig. 7 is the schematic diagram according to the second embodiment of the transfer switch unit of present disclosure.
Specific embodiment
Below in conjunction with attached drawing, the specific embodiment of present disclosure is illustrated.
Fig. 1 to Fig. 6 is according to the schematic diagram of the first embodiment of the transfer switch unit of present disclosure, one of which
Transfer switch unit comprising: the first moving contact 1 is respectively used to connection with connection position and open position and disconnects normal
With the electrical connection between power supply static contact 6 (it connects common power supply) and load first terminal 7；Second moving contact 2 has connection
Logical position and open position are respectively used to connection and disconnect backup power source static contact 8 (it connects backup power source) and load second end
Electrical connection between son 9 (load first terminal 7 and load Second terminal 9 are connected with load)；First connecting rod 3；Second connecting rod
4；Mechanism main shaft 5 is connect with first moving contact 2 by the first connecting rod 3 and passes through the second connecting rod 4 and institute
State the connection of the second moving contact 2；First connecting rod described in the motion actuation of the mechanism main shaft 5 and the second connecting rod, so that
The transfer switch unit has following working condition:
● when first moving contact 1 is in connection position, second moving contact 2 is in open position (see Fig. 3)；
● when second moving contact 2 is in connection position, first moving contact 1 is in open position (see Fig. 6)；
● first moving contact 1 and second moving contact 2 are in open position simultaneously (see Fig. 1,2,4 and 5).
The transfer switch unit further includes the first elastomeric element 10, is arranged to first moving contact 1 towards disconnected
Open position bias and first moving contact 1 is enabled to reach its most large opening position；And second elastomeric element 11,
Be arranged to by second moving contact 2 towards open position bias and enable second moving contact 2 reach its maximum
It drives away from position.
First moving contact 1 pivots, thus between connection and the common power supply static contact 6 of disconnection and load first terminal 7
Electrical connection.
Second moving contact 2 pivots, thus between connection and disconnection backup power source static contact 8 and load Second terminal 9
Electrical connection.
Wherein one end 1-1 of first moving contact 1 can be in electrical contact with common power supply static contact 6, the described first dynamic touching
First 1 other end 1-2 can be in electrical contact with load first terminal 7.
Wherein one end 2-1 of second moving contact 2 can be in electrical contact with backup power source static contact 8, the described second dynamic touching
First 2 other end 2-2 can be in electrical contact with load Second terminal 9.
Wherein one end of the first connecting rod 3 and wherein one end of the second connecting rod 4 with the mechanism main shaft 5 one
End connection (see Fig. 1 to 6).
The other end of the first connecting rod 3 is provided with the first elongated slot 3-1, the first pin of setting on first moving contact 1
1-3, the first pin 1-3 are arranged to be slidably matched in the first elongated slot 3-1.
The other end of the second connecting rod 4 is provided with the second elongated slot 4-1, the second pin of setting on second moving contact 2
2-3, the second pin 2-3 are arranged to be slidably matched in the second elongated slot 4-1.
The first pin 1-3 and the first elongated slot 3-1 be slidably matched and the second pin 2-3 is with described second
Being slidably matched for elongated slot 4-1 is configured such that the transfer switch unit has following working condition:
● the first connecting rod 3 described in the motion actuation of the mechanism main shaft 5 so that the first elongated slot 3-1 its
When middle one end pushes the first pin 1-3, first moving contact 1 overcomes the power of first elastomeric element 10 towards connection institute
The direction movement for stating the electrical connection between common power supply static contact 6 and the load first terminal 7, until first moving contact
1 is in the connection position, and the second pin 2-3 is in shape free to slide in the second elongated slot 4-1 in the process
State, second elastomeric element 11 deflects second moving contact 2 towards open position, so that second moving contact 2 is in
Open position and remain motionless；
● the second connecting rod 4 described in the motion actuation of the mechanism main shaft 5 so that the second elongated slot 4-1 its
When middle one end pushes the second pin 2-3, second moving contact 2 overcomes the power of second elastomeric element 11 towards connection institute
The direction movement for stating the electrical connection between backup power source static contact 8 and the load Second terminal 9, until second moving contact
2 are in the connection position, and the second pin 1-3 is in shape free to slide in the first elongated slot 3-1 in the process
State, first elastomeric element 10 deflects first moving contact 1 towards open position, so that first moving contact 1 is in
Open position and remain motionless.
First moving contact 1 and first elastomeric element 10 are arranged on the first moving contact retainer 12.
Second moving contact 2 and second elastomeric element 11 are arranged on the second moving contact retainer 13.
The movement of the transfer switch unit of present disclosure is briefly explained below in conjunction with attached drawing 1 to 6.
In Fig. 1, (it is inclined towards open position under the action of the first elastomeric element 10 for first moving contact 1
Turn first moving contact 1) in open position and it is in its most large opening position, second moving contact 2 is described the
(it deflects second moving contact 2 towards open position) is also at open position and is under the action of two elastomeric elements 11
Its most large opening position.
In Fig. 2, (being counterclockwise in Fig. 2), the mechanism master when the mechanism main shaft 5 starts to move upwards
Axis 5 drives first connecting rod 3 to move upwards, and first connecting rod 3 and then the first moving contact 1 is pushed to overcome the effect of the first elastomeric element 10
Power is pivoted towards connection position.In the process, the second moving contact 2 (its direction under the action of the second elastomeric element 11
Open position deflects second moving contact 2) it is in open position always, when the mechanism main shaft 5 moves upwards (in Fig. 2
In be counterclockwise), the mechanism main shaft 5 drives second connecting rod 4 to move upwards, since the second pin 2-3 is described the
In two elongated slot 4-1 (2- is not sold with described second in two ends of the i.e. described second elongated slot 4-1 in state free to slide
3 combine), second connecting rod 4 not will drive the second moving contact 2 pivot.
In Fig. 3, (being counterclockwise in Fig. 3), first connecting rod 3 when the mechanism main shaft 5 continues up
The first moving contact 1 is continued to press on until the first moving contact 1 is in connection position, i.e. connection often uses power supply static contact 6 (it connects normal
With power supply) and load first terminal 7 between electrical connection.In the process, the second moving contact 2 is in second elastomeric element 11
Under the action of always be in open position；The second pin 2-3 is in state free to slide in the second elongated slot 4-1
(two ends of the i.e. described second elongated slot 4-1 are not in conjunction with the second pin 2-3), second connecting rod 4 not will drive second
Moving contact 2 pivots.
It (is side clockwise in Fig. 4 when the mechanism main shaft 5 is moved downward since position shown in Fig. 3 in Fig. 4
To), the mechanism main shaft 5 drives second connecting rod 4 to move downward, two ends and institute by the second elongated slot 4-1
The the second pin 2-3 stated is not contacted (see Fig. 3), and second moving contact 2 is maintained at former open position, not with the second connecting rod
4 movement and move.In the process, when the mechanism main shaft 5 continues to move downward (being clockwise in Fig. 4),
The mechanism main shaft 5 drives the first connecting rod 3 to move downward, so that two ends and described first of the first pin 1-3
Between elongated slot 3-1 have there are the trend in gap so that first moving contact 1 is in first elastomeric element 10
It is rotated under effect to open position, and eventually arrives at its most large opening position.
In Fig. 5, when the mechanism main shaft 5 continues to move downward (being clockwise in Fig. 5), described second connects
Bar 4 continues to press on second moving contact 2 and pivots towards connection position.In the process, the first moving contact 1 is in first bullet
Property component 10 under the action of always be in open position；The first pin 1-3 is in free skating in the first elongated slot 3-1
Dynamic state (two ends of the i.e. described first elongated slot 3-1 are not in conjunction with the first pin 1-3), the first connecting rod 3 is not
It will drive first moving contact 1 to pivot.
In Fig. 6, (being clockwise in Fig. 6), second connecting rod 4 when the mechanism main shaft 5 continues to move downward
Second moving contact 2 is continued to press on until second moving contact 2 is in connection position, i.e. connection backup power source static contact 8
Electrical connection between (it connects backup power source) and load Second terminal 9.In the process, first moving contact 1 is described
Always open position is under the action of first elastomeric element 10；The first pin 1-3 is in the first elongated slot 3-1
State (two ends of the i.e. described first elongated slot 3-1 are not in conjunction with the first pin 1-3) free to slide, described first connects
Bar 3 not will drive first moving contact 1 and pivot.
As can be seen that since the second elongated slot 4-1 has certain length, so when the first dynamic touching 1 is in direction
In the motion process of connection position, second connecting rod 4 not will drive the rotation of the second moving contact 2, and then the second moving contact 2 is in the second bullet
Its most large opening position, i.e. open position are remained under the action of property component 11.Similarly, due to the first elongated slot 3-
1 has certain length, so first connecting rod 3 not will drive when the second moving contact 2 is in the motion process towards connection position
The rotation of first moving contact 1, and then the first moving contact 1 remains at its most large opening position under the action of the first elastomeric element 10
It sets, i.e. open position.
Fig. 7 shows the second embodiment of transfer switch unit, is only in that with the difference of first embodiment
Wherein one end 5-1 of the mechanism main shaft 5 is connect with wherein one end of the first connecting rod 3；The other end of the mechanism main shaft 5
5-2 is connect with wherein one end of the second connecting rod 4.
According to above embodiments, this disclosure provides a kind of transfer switch unit of three positions, moving contacts therein
1,2 other than on the static contact 6,8 that can rest on common power supply and backup power source, moreover it is possible to rest on and common power supply and standby electricity
The all discontiguous double quartiles of the static contact in source are set.
A kind of multi-pole switching device (not shown) is also provided according to present disclosure comprising change-over switch as described above
Device.
With reference to specific embodiment, although present disclosure is illustrated in the specification and illustrated in the drawings, but it should reason
Solution, in the case where not departing from present disclosure range defined in claim, technical field personnel can make more
Kind changes and the alternative many of element of a variety of equivalents.Moreover, technical characteristic, member between example embodied herein
The combination and collocation of part and/or function are clearly apparent, therefore according to these disclosure of that, technical field personnel
It will appreciate that the technical characteristic in embodiment, element and/or function can optionally be incorporated into another specific embodiment
In, unless above content has other description.In addition, not departing from present disclosure essence according to the introduction of present disclosure
Range, many changes can be made by adapting to special situation or material.Therefore, present disclosure is not limited to attached drawing and is illustrated
Other specific embodiment and described in this description as being at present best reality contemplated by implementation present disclosure
The specific embodiment of mode is applied, and present disclosure intention includes falling into description above and scope of the appended claims
All embodiments.
Claims (10)
1. a kind of transfer switch unit comprising:
First moving contact is respectively used to connection with connection position and open position and disconnects common power supply static contact and load
Electrical connection between first terminal；
Second moving contact is respectively used to connection with connection position and open position and disconnects backup power source static contact and load
Electrical connection between Second terminal；
First connecting rod；
Second connecting rod；
Mechanism main shaft, connect by the first connecting rod with first moving contact and pass through the second connecting rod with it is described
The connection of second moving contact；
First connecting rod described in the motion actuation of the mechanism main shaft and the second connecting rod, so that the transfer switch unit
With following working condition:
First moving contact is in connection position, and second moving contact is in open position；
Second moving contact is in connection position, and first moving contact is in open position；
First moving contact and second moving contact are in open position simultaneously.
2. transfer switch unit according to claim 1, further include:
First elastomeric element is arranged to first moving contact towards open position bias and makes the described first dynamic touching
Head can reach its most large opening position；
Second elastomeric element is arranged to second moving contact towards open position bias and makes the described second dynamic touching
Head can reach its most large opening position.
3. transfer switch unit according to claim 2, wherein
Wherein one end of the mechanism main shaft is connect with wherein one end of the first connecting rod；
The other end of the mechanism main shaft is connect with wherein one end of the second connecting rod.
4. transfer switch unit according to claim 2, wherein
Wherein one end of the first connecting rod and wherein one end of the second connecting rod are connect with one end of the mechanism main shaft.
5. transfer switch unit according to claim 3 or 4, wherein
The other end of the first connecting rod is provided with the first elongated slot, the first pin of setting on first moving contact, and described first
Pin is arranged to be slidably matched in first elongated slot；
The other end of the second connecting rod is provided with the second elongated slot, the second pin of setting on second moving contact, and described second
Pin is arranged to be slidably matched in second elongated slot.
6. transfer switch unit according to claim 5, wherein
First pin and first elongated slot be slidably matched and second pin and the sliding of second elongated slot
Cooperation is configured such that the transfer switch unit has following working condition:
The first connecting rod described in the motion actuation of the mechanism main shaft so that first elongated slot wherein one end and institute
State the first pin in conjunction with and when pushing the described first pin, first moving contact overcomes the power of first elastomeric element towards connection
Lead to the direction movement of the electrical connection between the common power supply static contact and the load first terminal, until the described first dynamic touching
Head is in the connection position, and two ends of second elongated slot are not combined with second pin in the process, institute
It states the second elastomeric element and deflects second moving contact towards open position, so that second moving contact is in open position simultaneously
And remain motionless；
The second connecting rod described in the motion actuation of the mechanism main shaft so that second elongated slot wherein one end and institute
State the second pin in conjunction with and when pushing the described second pin, second moving contact overcomes the power of second elastomeric element towards connection
Lead to the direction movement of the electrical connection between the backup power source static contact and the load Second terminal, until the described second dynamic touching
Head is in the connection position, and two ends of first elongated slot are not combined with first pin in the process, institute
It states the first elastomeric element and deflects first moving contact towards open position, so that first moving contact is in open position simultaneously
And remain motionless.
7. transfer switch unit according to claim 6, wherein
Second elongated slot has certain length, when first moving contact is in the motion process towards connection position,
The second connecting rod not will drive the second moving contact rotation, and then second moving contact is in second elastomeric element
Its most large opening position, i.e. open position is remained under effect；
First elongated slot has certain length, when second moving contact is in the motion process towards connection position,
The first connecting rod not will drive the first moving contact rotation, and then first moving contact is in first elastomeric element
Its most large opening position, i.e. open position is remained under effect.
8. transfer switch unit according to claim 2, wherein
First moving contact and first elastomeric element are arranged on the first moving contact retainer；
Second moving contact and second elastomeric element are arranged on the second moving contact retainer.
9. transfer switch unit according to claim 2, wherein
Wherein one end of first moving contact can be in electrical contact with common power supply static contact, the other end of first moving contact
It can be with load first terminal electrical contact；
Wherein one end of second moving contact can be in electrical contact with backup power source static contact, the other end of second moving contact
It can be with load Second terminal electrical contact.
10. a kind of multi-pole switching device comprising according to claim 1 to 9 one of them described transfer switch unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710821333.4A CN109494090B (en) | 2017-09-13 | 2017-09-13 | Transfer switch device and multi-pole switch device including the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710821333.4A CN109494090B (en) | 2017-09-13 | 2017-09-13 | Transfer switch device and multi-pole switch device including the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109494090A true CN109494090A (en) | 2019-03-19 |
| CN109494090B CN109494090B (en) | 2020-09-25 |
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ID=65687215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710821333.4A Active CN109494090B (en) | 2017-09-13 | 2017-09-13 | Transfer switch device and multi-pole switch device including the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109494090B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379656A (en) * | 2019-08-05 | 2019-10-25 | 陕西铭拓机电技术有限公司 | Dual power supply switching mechanism and power supply with the dual power supply switching mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936782A (en) * | 1975-01-29 | 1976-02-03 | Automatic Switch Company | Automatic transfer switch |
| CN104282462A (en) * | 2014-10-24 | 2015-01-14 | 贵州长征开关制造有限公司 | Moving contact switching structure for two-section automatic transfer switching device |
| CN204558326U (en) * | 2015-05-04 | 2015-08-12 | 瓮福（集团）有限责任公司 | A kind of dual-power transfer switch |
| CN207637648U (en) * | 2017-09-13 | 2018-07-20 | 施耐德电器工业公司 | Transfer switch unit and multi-pole switching device including the transfer switch unit |
-
2017
- 2017-09-13 CN CN201710821333.4A patent/CN109494090B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936782A (en) * | 1975-01-29 | 1976-02-03 | Automatic Switch Company | Automatic transfer switch |
| CN104282462A (en) * | 2014-10-24 | 2015-01-14 | 贵州长征开关制造有限公司 | Moving contact switching structure for two-section automatic transfer switching device |
| CN204558326U (en) * | 2015-05-04 | 2015-08-12 | 瓮福（集团）有限责任公司 | A kind of dual-power transfer switch |
| CN207637648U (en) * | 2017-09-13 | 2018-07-20 | 施耐德电器工业公司 | Transfer switch unit and multi-pole switching device including the transfer switch unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379656A (en) * | 2019-08-05 | 2019-10-25 | 陕西铭拓机电技术有限公司 | Dual power supply switching mechanism and power supply with the dual power supply switching mechanism |
| CN110379656B (en) * | 2019-08-05 | 2024-04-26 | 陕西铭拓机电技术有限公司 | Dual-power switching mechanism and power distribution system with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109494090B (en) | 2020-09-25 |
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