CN206864318U - A kind of double power supply automatic transfer switch - Google Patents
A kind of double power supply automatic transfer switch Download PDFInfo
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- CN206864318U CN206864318U CN201720788599.9U CN201720788599U CN206864318U CN 206864318 U CN206864318 U CN 206864318U CN 201720788599 U CN201720788599 U CN 201720788599U CN 206864318 U CN206864318 U CN 206864318U
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- contact knife
- power supply
- automatic transfer
- plate
- double power
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Abstract
It the utility model is related to a kind of double power supply automatic transfer switch, a kind of double power supply automatic transfer switch, executing agency including operating-controlling mechanism and with operating-controlling mechanism linkage, the executing agency includes two disconnecting switch, the contact knife for external conductive plate is provided with the disconnecting switch, on the contact knife, mounting hole is offered close to the position of both ends end, and the contact knife end position is provided with securing plate, the securing plate has mounting base and the side plate of the both sides edge Longitudinal extending from the installation floor, the side of the side plate and the contact knife forms close neighbour and set, the slotted hole corresponding with the mounting hole is offered on the mounting base, the mounting base is overlapped on the contact knife and forms threaded connection.The utility model is because the end position in contact knife is provided with securing plate, therefore, after external conductive plate is bolted installation, due to the position-limiting action of side plate, avoids conductive plate circumferentially rotating on contact knife, reliability is high.
Description
Technical field
It the utility model is related to electric field, and in particular to a kind of double power supply automatic transfer switch.
Background technology
Double power supply automatic transfer switch is that one kind is controlled by microprocessor, for netting electricity in network system with netting electric or net electricity
Start the device of switching with generator power supply, power supply continuous source can be made to power.Its main function is embodied in：When the event suddenly of conventional electricity
Barrier or have a power failure when, by double power supply converting switch, automatically engage on stand-by power supply, equipment is remained to normal operation, also because
This characteristic of double power supply automatic transfer switch, makes it be widely used in fields such as elevator, fire-fighting, monitoring, illuminations.
Those skilled in the art is it is to be understood that the double power supply automatic transfer switch on existing market includes breaker of plastic casing
Two kinds of class and load-break switch class, its difference are：The dual power supply of breaker of plastic casing class is using mold cased circuit breaker as switching
Execution unit, and the dual power supply of load isolation class is then using disconnecting switch as switching execution unit；Mainly related in the utility model
And the double power supply automatic transfer switch of load-break switch class, this dual power supply due to the contact knife that has in disconnecting switch with it is external
Conductive plate be electrically connected after, in use usually because the factor such as vibrations of power load, is easy to make external conduction
Plate offset on contact knife (because the connection between the dual power supply and conductive plate of in the market generally using bolt be fixedly mounted, so, make
Conductive plate often occurs in and forms circumferential deflection centered on bolt installation site), influence having between conductive plate and contact knife
Contact area is imitated, and then influence being transmitted along steady for electric current-carrying capacity between contact knife and conductive plate, strong influence dual power supply conversion
The use reliability of switch, and reduce service life.
The content of the invention
A kind of the defects of the purpose of this utility model is to overcome prior art, there is provided simple in construction, novel in design, use
Double power supply automatic transfer switch stable and reliable for performance.
To achieve the above object, the utility model uses a kind of double power supply automatic transfer switch, including operating-controlling mechanism and
With the executing agency of operating-controlling mechanism linkage, the executing agency includes two disconnecting switch, set in the disconnecting switch
There is a contact knife for external conductive plate, mounting hole, and the contact knife are offered on the contact knife, close to the position of both ends end
End position is provided with securing plate, and the securing plate has mounting base and longitudinally prolonged from the both sides edge of the mounting base
The side end face of the side plate stretched, the side plate and the contact knife forms close neighbour and set, and is offered and the peace on the mounting base
The corresponding slotted hole in hole is filled, the mounting base is overlapped on the contact knife and forms threaded connection.
Further set as of the present utility model, on the side plate, the side corresponding with the side end face of the contact knife
On be respectively arranged with axially extending grafting bar, opened respectively on the contact knife, on the both sides end face corresponding with the grafting bar
Provided with the inserting groove being adapted to the grafting bar.In the utility model, in order to further ensure between securing plate and contact knife
Reliability, the cross section of the grafting bar is arranged to trapezium structure, especially preferably isosceles trapezoidal structure.
Pass through the above-mentioned improvement to prior art, it is clear that, when external conductive plate is bolted on contact knife
When upper, because the securing plate on contact knife is provided with for spacing side plate so that conductive plate can not produce deflection on contact knife, enter
And effective electrical-contact area between contact knife and conductive plate is ensure that, and ensure that the stationarity of electric current-carrying capacity transmission；Meanwhile by
In being provided with the grafting bar for being fitted to inserting groove on contact knife two sides on side plate, it further ensure that securing plate with touching
Installation steadiness between knife and the non-deformability for improving side plate.
Brief description of the drawings
Fig. 1 is the schematic diagram of double power supply automatic transfer switch in the utility model.
Fig. 2 is the front view of disconnecting switch in the utility model.
Fig. 3 is Fig. 2 upward view.
Fig. 4 is along the sectional view in A-A directions in Fig. 2.
Fig. 5 is the front view of securing plate in the utility model.
Fig. 6 is Fig. 5 top view.
Embodiment
As shown in figs 1 to 6, the present embodiment uses a kind of double power supply automatic transfer switch, is shown in Fig. 1, the present embodiment
Double power supply automatic transfer switch includes operating-controlling mechanism 1 and the executing agency 2 with the operating-controlling mechanism 1 linkage, the execution machine
Structure 2 includes, in two disconnecting switch 20 being distributed up and down, understanding with reference to Fig. 2, being provided with for external in the disconnecting switch 20
The contact knife 200 of conductive plate, mounting hole 2000 is offered on the contact knife 200, close to the position of both ends end, further combined with figure
3 and Fig. 4 it will be apparent that, in the present embodiment, the end position of contact knife 200 is provided with securing plate 21, further with reference to Fig. 5
Understand that the securing plate 21 has mounting base 210 and the both sides edge Longitudinal extending from the mounting base 210 with Fig. 6
Side plate 211, show in Fig. 2, Fig. 3 and Fig. 4, the side end face of the side plate 211 and the contact knife 200 forms close neighbour and set, institute
State and the slotted hole 2100 corresponding with the mounting hole 2000 is offered on mounting base 210, the mounting base 210 is overlapped on
On the contact knife 200 and form threaded connection and (do not identified screw connection structure in accompanying drawing, but do not influence the position and be used for spiral shell
The understanding that line is fixedly connected).
Shown in Fig. 3 and Fig. 5 and Fig. 6, in the present embodiment, the side on the side plate 211, with the contact knife 200
Be respectively arranged with axially extending grafting bar 2110 on the corresponding side in face, and from Fig. 3 also it will be apparent that, the contact knife
The grafting being adapted to the grafting bar 2110 is offered on both sides end face on 200, corresponding with the grafting bar 2110 respectively
Groove (is not identified) in accompanying drawing.In the present embodiment, in order to further ensure the stabilization between securing plate 21 and contact knife 200
Reliability, the cross section of the grafting bar 2110 is arranged to trapezium structure, especially preferably isosceles trapezoidal structure.
General principle and principal character and advantage of the present utility model has been shown and described above.The technology people of the industry
For member it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification is explanation
Principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model also has various changes
Change and improve, these changes and improvements are both fallen within claimed the scope of the utility model.The protection of the requires of the utility model
Scope is according to appended claim and its equivalent thereof.
Claims (4)
1. a kind of double power supply automatic transfer switch, including operating-controlling mechanism and the executing agency with operating-controlling mechanism linkage, institute
Stating executing agency includes two disconnecting switch, the contact knife for external conductive plate is provided with the disconnecting switch, its feature exists
In：Mounting hole is offered on the contact knife, close to the position of both ends end, and the contact knife end position is provided with reinforcing
Plate, the securing plate have mounting base and the side plate of the both sides edge Longitudinal extending from the mounting base, the side plate
Close neighbour is formed with the side end face of the contact knife to set, and is offered on the mounting base corresponding with the mounting hole oval
Hole, the mounting base are overlapped on the contact knife and form threaded connection.
A kind of 2. double power supply automatic transfer switch according to claim 1, it is characterised in that：On the side plate, with it is described
Be respectively arranged with axially extending grafting bar on the corresponding side in the side end face of contact knife, on the contact knife, with the grafting bar
The inserting groove being adapted to the grafting bar is offered on corresponding both sides end face respectively.
A kind of 3. double power supply automatic transfer switch according to claim 2, it is characterised in that：The cross section of the grafting bar
For trapezium structure.
A kind of 4. double power supply automatic transfer switch according to Claims 2 or 3, it is characterised in that：The horizontal stroke of the grafting bar
Section is isosceles trapezoidal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720788599.9U CN206864318U (en) | 2017-06-27 | 2017-06-27 | A kind of double power supply automatic transfer switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720788599.9U CN206864318U (en) | 2017-06-27 | 2017-06-27 | A kind of double power supply automatic transfer switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206864318U true CN206864318U (en) | 2018-01-09 |
Family
ID=60829566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720788599.9U Active CN206864318U (en) | 2017-06-27 | 2017-06-27 | A kind of double power supply automatic transfer switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206864318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111988950A (en) * | 2019-05-23 | 2020-11-24 | 南宁学院 | Isolated bidirectional power supply shell with high heat dissipation performance |
-
2017
- 2017-06-27 CN CN201720788599.9U patent/CN206864318U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111988950A (en) * | 2019-05-23 | 2020-11-24 | 南宁学院 | Isolated bidirectional power supply shell with high heat dissipation performance |
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