CN206649304U - The switching circuit and Dual-Computer Hot-Standby System of Dual-Computer Hot-Standby System - Google Patents
The switching circuit and Dual-Computer Hot-Standby System of Dual-Computer Hot-Standby System Download PDFInfo
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- CN206649304U CN206649304U CN201720370746.0U CN201720370746U CN206649304U CN 206649304 U CN206649304 U CN 206649304U CN 201720370746 U CN201720370746 U CN 201720370746U CN 206649304 U CN206649304 U CN 206649304U
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Abstract
The switching circuit of Dual-Computer Hot-Standby System, including first relay and one group of second relay.First relay includes a first coil (12) and first contact switch (14).Each second relay includes second coil (22), second contact switch (24) and the 3rd contact switch (26).Each second coil is connected in series with the first contact switch；Each second contact switch is connected between an output end and the control device of corresponding first controller；Each 3rd contact switch is connected between an output end and the control device of corresponding second controller, and the second contact switch and the 3rd contact one are normally closed switch, and another is normal open switch.Switching circuit saves the interface of control unit, has more preferable autgmentability and compatibility by one group of second relay of first relay driving for being connected to control unit.And the Dual-Computer Hot-Standby System with above-mentioned switching circuit.
Description
Technical field
It the utility model is related to the two-node cluster hot backup system that the kind of a kind of switching circuit, especially one is used for Dual-Computer Hot-Standby System
System.And the Dual-Computer Hot-Standby System with above-mentioned switching circuit.
Background technology
Based on the consideration of security, reliability and maintainability etc., in automation field, many products are all adopted
With HVAC (heating ventilation and air adjustment) device of the design of Dual-Computer Hot-Standby System, such as data center.In dual-locomotive heat
When the number of devices of standby system control is more, switching circuit needs to be controlled switching to multiple output ends of two controllers,
Current existing switching circuit can only control the output end of fixed qty, and autgmentability and compatibility are very poor.
Utility model content
The purpose of this utility model is to provide a kind of switching circuit of Dual-Computer Hot-Standby System, and it can save two-node cluster hot backup system
The control port of the MCU chip of system, and there is more preferable autgmentability and compatibility.
Another purpose of the present utility model is to provide a kind of Dual-Computer Hot-Standby System, and it can save the control of control unit
Port, and there is more preferable autgmentability and compatibility.
The utility model provides a kind of switching circuit of Dual-Computer Hot-Standby System, and it can be connected to a control unit, and
Several output end connections corresponding to first controller or a second controller can be controlled under control unit control
Corresponding several control devices, switching circuit include first relay and one group of second relay.First relay includes
One first coil and first contact switch.First coil is connected with control unit, and the first contact switch corresponds to First Line
Circle；Each second relay includes second coil, second contact switch and the 3rd contact switch.Each second coil
It is connected in series with the first contact switch；Corresponding second coil of second contact switch, each second contact switch be connected to corresponding to the
Between one output end of one controller and a control device；Corresponding second coil of 3rd contact switch, each 3rd contact is opened
Close corresponding to being connected between an output end of second controller and a control device, the second contact switch and the 3rd
One in contact switch is normally closed switch, and another is normal open switch.
Dual-Computer Hot-Standby System provided by the utility model, pass through first relay driving one for being connected to control unit
The second relay of group, recycles each second Control to switch the output end of the first controller and second controller, saves
The interface of control unit, it is easy to the addition of the second relay, there is more preferable autgmentability and compatibility.
The utility model also provides a kind of Dual-Computer Hot-Standby System, including a control unit, first controller, one
Second controller and an above-mentioned switching circuit.First controller has several output ends；Second controller has and first
Several output ends corresponding to controller.First coil is connected with control unit, each second coil be connected in the same circuit and with
First contact switch is connected, and the second contact switch is connected to an output end and a control device for corresponding first controller
Between, each 3rd contact switch is connected between an output end and the control device of corresponding second controller, and second
One in contact switch and the 3rd contact switch is normally closed switch, and another is normal open switch.
The utility model also provides a kind of switching circuit of Dual-Computer Hot-Standby System, and it can be connected to a control unit,
And several output ends corresponding to first controller or a second controller can be controlled to connect under control unit control
Several control devices corresponding to connecing, switching circuit include two the first relays and two group of second relay.Each first relay
Including a first coil, first contact switch and the 4th contact switch.First coil is stated to be connected with control unit,
First contact switch corresponds to first coil, and the 4th contact switch corresponds to first coil, the first contact switch and the second contact switch
In one be normal open switch, another is normally closed switch；Each second relay includes second coil and one second is touched
Point switch.Second coil of one group of second relay is connected in series with first contact switch, another group of the second relay
Second coil is connected in series with another the 4th contact switch；Corresponding second coil of second contact switch, one group of second relay
Each second contact switch be connected to corresponding to the first controller an output end and a control device between, it is another
Each second contact switch of the second relay of group is connected to the output end control corresponding with one of corresponding second controller
Between control equipment.
The switching circuit of Dual-Computer Hot-Standby System provided by the utility model, by two be connected to the first of control unit after
Two groups of relays of group second of electrical equipment drive, each second Control is recycled to switch the first controller and second controller respectively
Output end, save the interface of control unit, be easy to the addition of the second relay, there is more preferable autgmentability and compatibility.
The utility model also provides a kind of Dual-Computer Hot-Standby System, including a control unit, first controller, one
Second controller and an above-mentioned switching circuit.First coil is connected with control unit, the second line of one group of second relay
Circle is connected in series with first contact switch, the second coil of another group of the second relay and another the 4th contact switch string
Connection connection, each second contact switch of one group of second relay be connected to corresponding to the first controller an output end with
Between one control device, each second contact switch of another group of the second relay is connected to corresponding second controller
Between one output end control device corresponding with one.
In another exemplary embodiment of Dual-Computer Hot-Standby System, the first controller can send heartbeat signal.Control
Unit processed can receive and detect heartbeat signal, and send a selection signal to each first coil simultaneously according to testing result.
In another exemplary embodiment of Dual-Computer Hot-Standby System, control unit also includes a time delay module, its
Selection signal can be received and be sent to first coil, time delay module can also judge one group that selection signal will disconnect
Two contact switch, and be delayed and send selection signal to first coil corresponding to one group of second contact switch.Further enhance and cut
Change the stability of circuit.
Hereafter by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, to Dual-Computer Hot-Standby System switching circuit
And above-mentioned characteristic, technical characteristic, advantage and its implementation entered one step explanation.
Brief description of the drawings
The following drawings only does schematic illustration and explanation to the utility model, does not limit the scope of the utility model.
Fig. 1 is the structural representation for illustrating a kind of exemplary embodiment of the switching circuit of Dual-Computer Hot-Standby System.
Fig. 2 is the local attachment structure schematic diagram for illustrating the exemplary embodiment of the switching circuit shown in Fig. 1.
Fig. 3 is for illustrating the structure in a kind of exemplary embodiment of another switching circuit of Dual-Computer Hot-Standby System
Schematic diagram.
Fig. 4 is the local attachment structure schematic diagram for illustrating the exemplary embodiment of the switching circuit shown in Fig. 3.
Label declaration
10 first relays
12 first coils
14 first contact switch
16 the 4th contact switch
20 second relays
22 second coils
24 second contact switch
26 the 3rd contact switch
30 control units
40 first controllers
50 second controllers
60 control devices.
Embodiment
In order to which the technical characteristic of utility model, purpose and effect are more clearly understood, now control illustrates this
The embodiment of utility model, in the various figures identical label represent that structure is identical or structure is similar but function identical portion
Part.
Herein, " schematic " expression " serving as example, example or explanation ", will should not be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to a preferred or more advantageous technical scheme of kind.
Fig. 1 is the structural representation for illustrating a kind of exemplary embodiment of the switching circuit of Dual-Computer Hot-Standby System,
Fig. 2 is the local attachment structure schematic diagram for illustrating the exemplary embodiment of the switching circuit shown in Fig. 1.The He of reference picture 1
Fig. 2, switching circuit can be connected to a control unit 30, and being capable of one first control of control under the control of control unit 30
Several control devices 60 corresponding to corresponding several output end connections of device 40 processed or a second controller 50, that is, control same
The output end of first controller 40 of individual control device is corresponding with the control device with the output end of second controller 50.Switching
Circuit includes first relay 10 and one group of second relay 20.
First relay 10 includes a first coil 12 and first contact switch 14.First coil 12 is single with control
Member 30 connects, and the corresponding first coil 12 of the first contact switch 14, as shown in fig. 1, the conducting of first coil 12 can drive first
Contact switch 14 closes.
Each second relay 20 includes 22, second contact switch 24 of second coil and the 3rd contact switch
26.Each second coil 22 is connected in series with the first contact switch 14, as shown in fig. 1, each second coil 22 be serially connected and with
First contact switch 14 is connected, and is not limited thereto certainly, and in other exemplary embodiments, each second coil 22 also may be used
With parallel with one another and connected with the first contact switch 14.Corresponding second coil 22 of second contact switch 24, as shown in fig. 1, the
The conducting of two coil 22 can control the second contact 24 to switch off, reference picture 2, each second contact switch 24 be connected to corresponding to the
Between one output end of one controller 40 and a control device 60.Corresponding second coil 22 of 3rd contact switch 26, such as Fig. 1
Shown in, the conducting of the second coil 22 can control the 3rd contact switch 26 to close, and each 3rd contact switch 26 is connected to pair
Between one output end of the second controller 50 answered and a control device 60, the second contact switch 24 and the 3rd contact switch
One in 26 is normally closed switch, and another is normal open switch, and the second contact switch 24 is normally closed in exemplary embodiment
Switch, the 3rd contact switch 26 be normal open switch, but is not limited thereto, in other schematic embodiment party in, second is tactile
Point switch 24 can be normal open switch, meanwhile, the 3rd contact switch 26 is normally closed switch.
Referring to Figures 1 and 2, control unit 30 can control the first relay 10, when first coil 12 is switched to lead by disconnection
After logical, the first contact switch 14 closes, and turns on each second coil 22, and each second contact switch 24 disconnects, each 3rd contact 26
Closure, the output end and control device 60 for making each second controller 40 form loop, the output end of each first controller 50 and control
Loop between control equipment 60 disconnects, and now, controls control device 60 to be switched to by second controller 50 by the first controller 40
Control device.Similarly, when first coil 12 is switched to disconnect by conducting, now control device 60 is controlled to cut by second controller 40
Change to and control device 60 is controlled by the first controller 50.
Above-mentioned Dual-Computer Hot-Standby System system, pass through one group of second relay of first relay driving for being connected to control unit
Device, recycle each second Control to switch the output end of the first controller and second controller, save control unit
Interface, it is easy to the addition of the second relay to extend, makes switching circuit that there is more preferable autgmentability and compatibility.
The utility model also provides a kind of Dual-Computer Hot-Standby System, including 30, first controllers 40 of a control unit,
One second controller 50 and an above-mentioned switching circuit.First controller 40 has several output ends；Second controller 50
With with 40 corresponding several output ends of the first controller.First coil 12 is connected with control unit 30, and each second coil 22 is gone here and there
It is associated in the same circuit and is connected with the first contact switch 14, the second contact switch 24 is connected to corresponding first controller 40
Between one output end and a control device, each 3rd contact switch 26 is connected to one of corresponding second controller 50
Between output end and a control device, one in the second contact switch 24 and the 3rd contact switch 26 is normally closed switch, separately
One is normal open switch.
Fig. 3 is the structural representation for illustrating a kind of exemplary embodiment of the switching circuit of Dual-Computer Hot-Standby System,
Fig. 4 is the local attachment structure schematic diagram for illustrating the exemplary embodiment of the switching circuit shown in Fig. 3.The He of reference picture 3
Fig. 4, the switching circuit of Dual-Computer Hot-Standby System can be connected to a control unit 30, and can be under the control of control unit 30
Several controls corresponding to corresponding several output end connections of one the first controller 40 of control or a second controller 50 are set
Standby 60, that is, control the output end of the first controller 40 and the output end of second controller 50 and the control of same control device
Control equipment 60 is corresponding.Switching circuit includes first relay 10 and one group of second relay 20.Switching circuit includes two
Individual first relay 10 and two group of second relay 20.
Each first relay 10 includes a first coil, the first contact switch 14 and the 4th contact switch
16.State first coil 12 to be connected with control unit 30, the corresponding first coil 12 of the first contact switch 14, as shown in fig. 1, first
The conducting of coil 12 can drive the first contact switch 14 to disconnect.The corresponding first coil 12 of 4th contact switch 16, such as institute in Fig. 1
Show, the conducting of first coil 12 can drive the 4th contact switch 16 to close.In first contact switch 14 and the second contact switch 16
One be normal open switch, another is normally closed switch.In exemplary embodiment, the first contact switch 14 is opened to be normally closed
Close, the 4th contact switch 16 is normal open switch, but is not limited thereto, in other schematic embodiment party in, the first contact
Switch 14 can be normal open switch, meanwhile, the 4th contact switch 16 is normally closed switch.
Each second relay 20 includes second coil 22 and second contact switch 24.One group of second relay 20
The second coil 22 be connected in series with first contact switch 14, the second coil 22 of another group of the second relay 20 with it is another
Individual 4th contact switch 16 is connected in series.As shown in Figure 3, one group of second coil 22 be serially connected and with the first contact switch 14
Series connection, separately the second coil 22 is serially connected and connected with the 4th contact switch 16 a group by a group, is not limited thereto certainly, at it
In his exemplary embodiment, one group of second coil 22 can also be parallel with one another and connected with the first contact switch 14, another group
Second coil 22 can also be parallel with one another and connected with the 4th contact switch 116, corresponding second coil 22 of the second contact switch 24,
Each second contact switch 24 of one group of second relay 20 be connected to corresponding to the first controller 40 an output end with
Between one control device 60, each second contact switch 24 of another group of the second relay 20 is connected to corresponding second controller
Between 50 output end control device 60 corresponding with one.
The switching circuit of above-mentioned Dual-Computer Hot-Standby System, pass through two two groups of the first relay drivings for being connected to control unit
The second relay of group, each second Control is recycled to switch the output end of the first controller and second controller, section respectively
The interface of control unit has been saved, has been easy to the addition of the second relay, there is more preferable autgmentability and compatibility.
Reference picture 3 and Fig. 4, control unit 30 can control two the first relays 10, when first coil 12 is turned by disconnecting
After conducting, the first contact switch 14 disconnects, and the 4th contact switch 16 closes, one group second to be connected with the first contact switch 14
Coil 22 disconnects, and one group of second coil 22 connected with the 4th contact switch 16 closes, and is connected to corresponding first control
One group of second contact switch 24 between one output end of device 40 and a control device 60 disconnects, and is connected to corresponding
Another group of the second contact switch 24 between one output end of second controller 50 and a control device 60 closes, and makes each
The output end of two controllers 40 forms loop with control device 60, between the output end and control device 60 of each first controller 50
Loop disconnect, now, control control device 60 to be switched to by the control device of second controller 50 by the first controller 40.Together
Reason, control are switched to disconnect when first coil 12 by conducting, now by by second controller 40 control control device 60 be switched to by
The control device 60 of first controller 50.
The utility model also provides a kind of Dual-Computer Hot-Standby System, including 30, first controllers 40 of a control unit,
One second controller 50 and an above-mentioned switching circuit.First coil is connected with control unit 30, one group of second relay
The second coil 22 be connected in series with first contact 14 switch, the second coil 22 of another group of the second relay and another
4th contact 16 switch is connected in series, and each second contact 24 switch of one group of second relay is connected to corresponding first control
60 between one output end of device 40 processed and a control device, each second contact 24 switch point of another group of the second relay
Between the output end control device 60 corresponding with one of second controller 50 corresponding to not being connected to.
In above-mentioned Dual-Computer Hot-Standby System, the first controller 40 can send heartbeat signal.Control unit 30 can receive
And heartbeat signal is detected, and a selection signal is sent to each first coil 12 according to testing result simultaneously.Control unit 30 is also
Including a time delay module, it can receive selection signal and be sent to first coil 12, and time delay module can also be judged to select
One group of second contact switch 24 that signal will disconnect is selected, and is delayed and sends selection signal to one group of second correspondence of contact switch 24
First coil 12.In schematic embodiment party as shown in Figure 3 and Figure 4, when time delay module receives conducting first coil 12
During selection signal, time delay module can interpolate that now the first contact switch 12 will disconnect, and then connect with the first contact switch 14
One group of second coil 22 to disconnect, now delay send selection signal to the first coil 12 to the first contact switch 12, treat
After the output end of each second controller 40 forms loop with control device 60, then disconnect the output end of each first controller 50 with
Loop between control device 60, complete unremitting control and go to change, further enhance the stability of switching circuit.
It should be appreciated that although this specification is described according to each embodiment, not each embodiment only includes one
Individual independent technical scheme, this narrating mode of specification is only that those skilled in the art will should say for clarity
Bright book is as an entirety, and the technical solutions in the various embodiments may also be suitably combined, and forming those skilled in the art can be with
The other embodiment of understanding.
Tool of the one serial detailed description of those listed above only for possible embodiments of the present utility model
Body illustrates that they are simultaneously not used to limit the scope of protection of the utility model, all to be made without departing from the utility model skill spirit
Equivalent embodiments or change, such as the combination, segmentation or repetition of feature, should be included in the scope of protection of the utility model it
It is interior.
Claims (6)
1. the switching circuit of Dual-Computer Hot-Standby System, a control unit (30) can be connected to, and can be in described control unit
(30) corresponding several output end connections pair of lower one the first controller (40) of control of control or a second controller (50)
The several control devices (60) answered, it is characterised in that the switching circuit includes：
One the first relay (10), it includes：
One first coil (12), the first coil (12) are connected with described control unit (30), and
The first contact switch (14) of one correspondence first coil (12)；And
One group of second relay (20), each second relay (20) include：
One the second coil (22), each second coil (22) are connected in series with first contact switch (14),
The second contact switch (24) of one correspondence, second coil (22), each second contact switch (24) are connected to pair
Between one output end of first controller (40) answered and a control device (60), and
One correspondence contact switch (26) of the second coil (22) the 3rd, each 3rd contact switch (26) are connected to
Between one output end of the corresponding second controller (50) and a control device (60), second contact switch
(24) and one in the 3rd contact switch (26) is normally closed switch, and another is normal open switch.
2. Dual-Computer Hot-Standby System, it is characterised in that including：
One control unit (30)；
One the first controller (40), it has several output ends；
One second controller (50)；It has several output ends corresponding with first controller (40)；And
One switching circuit as claimed in claim 1, the first coil (12) are connected with described control unit (30), each institute
State the second coil (22) to be connected in the same circuit and connect with first contact switch (14), second contact switch
(24) between an output end of first controller (40) corresponding to being connected to and a control device (60), each described the
Three contact switch (26) be connected to it is described corresponding to second controller (50) an output end and control device (60) it
Between, one in second contact switch (24) and the 3rd contact switch (26) is normally closed switch, and another is normally opened
Switch.
3. the switching circuit of Dual-Computer Hot-Standby System, a control unit (30) can be connected to, and can be in described control unit
(30) corresponding several output end connections pair of lower one the first controller (40) of control of control or a second controller (50)
The several control devices (60) answered are characterized in that, the switching circuit includes：
Two the first relays (10), each first relay (10) include：
One first coil (12), the first coil (12) are connected with described control unit (30), and
The first contact switch (14) of one correspondence first coil (12), and
4th contact switch (16) of one correspondence first coil (12), first contact switch (14) and described second
One in contact switch (16) is normal open switch, and another is normally closed switch；And
Two group of second relay (20), each second relay (20) include：
One the second coil (22), second coil (22) of the second relay (20) described in one group are touched with one described first
Point switch (14) be connected in series, second coil (22) of the second relay (20) described in another group with another the described 4th
Contact switch (16) is connected in series, and
The second contact switch (24) of one coil of correspondence second (22), each described second of the second relay (20) described in one group
Contact switch (24) be connected to corresponding to first controller (40) an output end and a control device (60)
Between, each second contact switch (24) of the second relay (20) described in another group is connected to corresponding second control
Between the output end control device (60) corresponding with one of device (50).
4. Dual-Computer Hot-Standby System, it is characterised in that including：
One control unit (30)；
One the first controller (40), it has several output ends；
One second controller (50)；It has several output ends corresponding with first controller (40)；And
One switching circuit as claimed in claim 3, the first coil (12) are connected with described control unit (30), one group
Second coil (22) of second relay (20) is connected in series with first contact switch (14), another group
Second coil (22) of second relay (20) is connected in series with the 4th contact switch (16) another described, one group
Each second contact switch (24) of second relay (20) is connected to corresponding first controller (40)
An output end and a control device (60) between, each second contact of the second relay (20) described in another group is opened
Close the output end control device corresponding with one that (24) are connected to the corresponding second controller (50)
(60) between.
5. Dual-Computer Hot-Standby System as claimed in claim 4, it is characterised in that
First controller (40) can send heartbeat signal；
Control unit (30) can receive and detect the heartbeat signal, and according to testing result simultaneously to each first coil
(12) selection signal is sent.
6. Dual-Computer Hot-Standby System as claimed in claim 5, it is characterised in that described control unit (30) also includes a delay
Module, it can receive the selection signal and be sent to the first coil (12), and the time delay module can also be judged
Second contact switch (24) described in the selection signal will disconnect one group, and be delayed and send the selection signal to described one
The first coil (12) corresponding to the second contact switch of group (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720370746.0U CN206649304U (en) | 2017-04-10 | 2017-04-10 | The switching circuit and Dual-Computer Hot-Standby System of Dual-Computer Hot-Standby System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720370746.0U CN206649304U (en) | 2017-04-10 | 2017-04-10 | The switching circuit and Dual-Computer Hot-Standby System of Dual-Computer Hot-Standby System |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206649304U true CN206649304U (en) | 2017-11-17 |
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ID=60275672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720370746.0U Active CN206649304U (en) | 2017-04-10 | 2017-04-10 | The switching circuit and Dual-Computer Hot-Standby System of Dual-Computer Hot-Standby System |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206649304U (en) |
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2017
- 2017-04-10 CN CN201720370746.0U patent/CN206649304U/en active Active
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