CN208656417U - Supply power with double circuit channel switching control and power supply system - Google Patents
Supply power with double circuit channel switching control and power supply system Download PDFInfo
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- CN208656417U CN208656417U CN201821372450.3U CN201821372450U CN208656417U CN 208656417 U CN208656417 U CN 208656417U CN 201821372450 U CN201821372450 U CN 201821372450U CN 208656417 U CN208656417 U CN 208656417U
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Abstract
The utility model relates to power supply power supply technical fields, the utility model is to solve the problems, such as that the existing switching device reliability when channel is supplied power with double circuit in switching that supplies power with double circuit is low, it is proposed that one kind supplies power with double circuit channel switching control and power supply system, the control device includes control circuit, driving circuit, solid-state relay and electromagnetic relay, pass through solid-state relay auxiliary selenoid relay quick-make, since solid-state relay switch speed is very fast, power consumption of electromagnetic relay and calorific value are lower, it can bear the load of relatively high power, channel of supplying power with double circuit is switched fast so as to realize, and it is not limited by bearing power, it can ensure the continuity of load supplying, to improve safety and reliability in practical applications, especially suitable for the biggish power supply system of more demanding and bearing power to the continuity of power supply.
Description
Technical field
The utility model relates to power supply power supply technical field, relate in particular to a kind of supplying channels switching control and
Power supply system.
Background technique
In automatic control circuit, electromagnetic relay or solid-state relay are generallyd use as electronic control device, electricity
Magnetic relay is actually a kind of " oneself for going to control biggish electric current, biggish voltage using lesser electric current, lower voltage
Dynamic switch ", the effects of playing automatic adjustment, safeguard protection, conversion circuit in circuit.Solid-state relay has and electromagnetism relay
Device function of the same nature, difference are that solid-state relay does not have mechanical structure, without movement components.
Need to supply power with double circuit channel switching application in, the prior art generally use supply power with double circuit channel connection electromagnetism after
Electric appliance or solid-state relay realize the switching in channel of supplying power with double circuit, and still, electromagnetic relay is made by the effect of galvanomagnetic-effect
Armature and magnetic core are attracted to complete power switching, and switch speed is slower, is easy to cause load that cannot power in time.Solid-state relay
Isolation and relay handoff functionality are completed by the electromagnetism and light characteristic of semiconductor devices, although switch speed block, to overload
There is biggish sensibility, since tube voltage drop is big, the power consumption and calorific value after solid-state relay conducting are larger, when the temperature increases,
Load capacity will fall rapidly upon, and when bearing power is larger, solid-state relay be easy to cause to damage.Therefore, in conclusion it is existing
Technology reliability when channel is supplied power with double circuit in switching is low, cannot ensure the continuity of high power load power supply.
Utility model content
The purpose of this utility model is that solve the existing switching device that supplies power with double circuit reliable when channel is supplied power with double circuit in switching
The low problem of property proposes that one kind supplies power with double circuit channel switching control and power supply system.
The utility model solves technical solution used by above-mentioned technical problem: channel switching control of supplying power with double circuit dress
It sets, comprising: control circuit, driving circuit, solid-state relay and electromagnetic relay, the channel of supplying power with double circuit include the first power supply
Channel and the second supplying channels, the control circuit are connect with driving circuit, the driving circuit respectively with solid-state relay
Control interface is connected with the control interface of electromagnetic relay, one end point and the electromagnetism relay of the on-off interface of the solid-state relay
The movable contact and supplying channels output end of the normally opened contact of device and the connection of the second supplying channels, the other end and electromagnetic relay connect
It connects, the normally-closed contact connection of first supplying channels and electromagnetic relay.
To protect to circuit, the channel switching control that supplies power with double circuit further includes diode, the diode
Anode connect with the first supplying channels, the normally-closed contact of cathode and electromagnetic relay connects.
For the turn-on power loss for verifying solid-state relay, the channel switching control that supplies power with double circuit further includes the first detection
Circuit, first detection circuit are connect with solid-state relay.
For the handoff functionality of verifying electromagnetic relay, the channel switching control that supplies power with double circuit further includes the second detection
Circuit, second detection circuit are connect with electromagnetic relay.
Cost is researched and developed to save, the utility model provides a kind of physical circuit knot of verifying electromagnetic relay turn-on power loss
Structure, the electromagnetic relay are two-way balanced force type electromagnetic relay, and the two-way balanced force type electromagnetic relay includes first
Group contact and second group of contact, first group of contact and second group of contact synchronism switching, the solid-state relay and first group of contact
Connection, second detection circuit are connect with second group of contact.
For the continuity for ensuring the load supplying when power supply system is in switching, the utility model also proposes a kind of power supply system
System, the power supply system includes the above-mentioned channel switching control that supplies power with double circuit.
The beneficial effects of the utility model are: the channel switching control described in the utility model that supplies power with double circuit, passes through
A solid-state relay in parallel on electromagnetic relay, after applying corresponding software method, when needing to carry out to supplying channels
When switching, when controlling the contact change-over of electromagnetic relay, while control circuit control solid-state relay conducting, solid-state relay are auxiliary
Electromagnetic relay quick-make is helped, since solid-state relay switch speed is very fast, power consumption of electromagnetic relay and calorific value are lower, energy
The load for bearing relatively high power, is switched fast channel of supplying power with double circuit so as to realize, and do not limited by bearing power, energy
Enough ensure the continuity of load supplying, to improve safety and reliability in practical applications.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of channel switching control of supplying power with double circuit described in the utility model embodiment；
Description of symbols:
The first supplying channels of 1-；The second supplying channels of 2-；The second detection circuit of 3- motivates input terminal；4- power supply output end；
The normally-closed contact of the first group of contact A-；The normally opened contact of the first group of contact B-；The movable contact of the first group of contact C-；Second group of touching of D-
The normally-closed contact of point；The normally opened contact of the second group of contact E-；The movable contact of the second group of contact F-.
Specific embodiment
The embodiments of the present invention is described in detail below in conjunction with attached drawing.
The channel switching control described in the utility model that supplies power with double circuit, including control circuit, driving circuit, solid-state after
Electric appliance and electromagnetic relay, the channel of supplying power with double circuit includes the first supplying channels and the second supplying channels, the control circuit
It is connect with driving circuit, the driving circuit connects with the control interface of the control interface of solid-state relay and electromagnetic relay respectively
It connects, one end of on-off interface of the solid-state relay and the normally opened contact of electromagnetic relay and the second supplying channels connect, separately
The connection of the movable contact and supplying channels output end of one end and electromagnetic relay, first supplying channels and electromagnetic relay it is normal
Closed contact connection, supplying channels output end and load to be powered connect.
When needing to switch to the second supplying channels from the first supplying channels, before handover, movable contact and normally-closed contact
In attracting state, solid-state relay is in an off state, and when switching, control circuit controls driving circuit and issues driving signal,
It controls electromagnetic relay to be attracted, is attracted movable contact normally opened contact, at the same time, driving solid-state relay conducting, solid-state relay
Fast speed is connected in device, after the movable contact and normally-closed contact of electromagnetic relay disconnect, in normally opened contact attracting process, and solid-state
Relay has been completed the switching in duplex feeding channel, after the movable contact and normally opened contact of electromagnetic relay are attracted, can lead to
The above-mentioned solid-state relay mode powering load in parallel with electromagnetic relay is crossed, also solid-state relay can control to disconnect, only lead to
Electromagnetic relay powering load is crossed, can be arranged according to the actual situation.
When needing to switch to the first supplying channels from the second supplying channels, before handover, movable contact and normally opened contact
In attracting state, solid-state relay is in the conductive state, and when switching, control circuit controls driving circuit and issues driving signal,
Electromagnetic relay release is controlled, movable contact normally-closed contact is attracted, after the movable contact and normally opened contact of electromagnetic relay disconnect,
In normally-closed contact attracting process, solid-state relay is tended to remain on, and after movable contact has been attracted with normally-closed contact, then is controlled
Solid-state relay processed disconnects, to realize the continuous power supply of load.
Embodiment
Supply power with double circuit channel switching control described in the utility model embodiment, as shown in Figure 1, including control electricity
Road, driving circuit, solid-state relay and electromagnetic relay, channel of supplying power with double circuit include that the first supplying channels 1 and the second power supply are logical
Road 2, control circuit is connect with driving circuit, the driving circuit control with the control interface of solid-state relay and electromagnetic relay respectively
Interface connection processed, one end of the on-off interface of solid-state relay and the normally opened contact B and second of first group of contact of electromagnetic relay
Supplying channels 2 connect, and the other end is connect with the movable contact C of first group of contact of electromagnetic relay and supplying channels output end, and first
Supplying channels 1 are connect with the normally-closed contact A of first group of contact of electromagnetic relay, load to be powered and first group of touching of electromagnetic relay
Movable contact C and supplying channels the output end connection of point.The present embodiment selects voltage rating 28VDC, the solid-state of rated current 25A after
Electric appliance, solid-state relay can realize that 2ms completes on-off switching；Select voltage rating 28VDC, the electromagnetism relay of rated current 20A
Device, can be applied to voltage rating 28VDC, the DC power-supply system of rated current 25A, and pressure resistance can bear 80VDC, rated power
560W, power consumption are less than 30W, and the parameter of electromagnetic relay and solid-state relay can select according to actual needs.
Preferably, as shown in Figure 1, the channel switching control that supplies power with double circuit described in the present embodiment further includes diode D,
The anode of diode D is connect with the first supplying channels 1, and cathode is connect with the normally-closed contact A of first group of contact of electromagnetic relay, and two
Pole pipe D can prevent current reflux, realize the reverse protection to circuit.
The channel switching control that supplies power with double circuit described in the present embodiment further includes the first detection circuit, the first detection circuit
It is connect with solid-state relay, the first detection circuit makes technical staff can for detecting to the on off operating mode of solid-state relay
Solid-state relay on off operating mode is obtained, and facilitates operation.
Preferably, the channel switching control that supplies power with double circuit described in the present embodiment further includes the second detection circuit, and second
Detection circuit is connect with electromagnetic relay, and the second detection circuit makes to grasp for detecting the switching state of electromagnetic relay
The switching state of electromagnetic relay can be obtained by making personnel, and whether operator can switch completion according to electromagnetic relay come to solid-state
The on-off of relay is controlled, and facilitates operation.
Cost is researched and developed to save, the present embodiment provides a kind of specific structures of second detection circuit: above-mentioned electromagnetic relay
It can be two-way balanced force type electromagnetic relay, two-way balanced force type electromagnetic relay further includes second group of contact, second group of contact
With first group of contact synchronism switching, solid-state relay is connect with first group of contact, and the second detection circuit is connect with second group of contact,
Specifically, the excitation of the second detection circuit inputs as shown in Figure 1, the second detection circuit is connect with the movable contact F of second group of contact
End 3 is connect with the normally opened contact E of second group of contact, and the normally-closed contact D of second group of contact is hanging；In the present embodiment, when second
When excitation input voltage is not detected in detection circuit, the movable contact C of expression first group of contact of electromagnetic relay and first group of contact
Normally-closed contact A be attracted；When the second detection circuit detects excitation input voltage, first group of contact of electromagnetic relay is indicated
Movable contact C and the normally opened contact B of first group of contact are attracted.
It should be noted that provided by the utility model is only a kind of the specific of channel switching control of supplying power with double circuit
Structure, the skill of computer software programs or agreement involved by control circuit being well known to those skilled in the art in itself
Art is not the improvements of this system, and details are not described herein again；The interaction relationship being improved between each module of this system
Or connection relationship, as the whole construction of system is improved, to solve the problems, such as this system relevant art to be solved.
Claims (6)
1. supply power with double circuit channel switching control characterized by comprising control circuit, driving circuit, solid-state relay and
Electromagnetic relay, the channel of supplying power with double circuit include the first supplying channels and the second supplying channels, the control circuit and driving
Circuit connection, the driving circuit are connect with the control interface of the control interface of solid-state relay and electromagnetic relay respectively, institute
The one end of on-off interface and the normally opened contact of electromagnetic relay and the second supplying channels for stating solid-state relay connect, the other end with
The movable contact and supplying channels output end of electromagnetic relay connect, the normally-closed contact of first supplying channels and electromagnetic relay
Connection.
2. supply power with double circuit channel switching control as described in claim 1, which is characterized in that it further include diode, it is described
The anode of diode is connect with the first supplying channels, the normally-closed contact connection of cathode and electromagnetic relay.
3. supply power with double circuit channel switching control as described in claim 1, which is characterized in that further include the first detection electricity
Road, first detection circuit are connect with solid-state relay.
4. supply power with double circuit channel switching control as described in claim 1, which is characterized in that further include the second detection electricity
Road, second detection circuit are connect with electromagnetic relay.
5. supply power with double circuit channel switching control as claimed in claim 4, which is characterized in that the electromagnetic relay is two
Road balanced force type electromagnetic relay, the two-way balanced force type electromagnetic relay include first group of contact and second group of contact, the
One group of contact and second group of contact synchronism switching, the solid-state relay are connect with first group of contact, second detection circuit
It is connect with second group of contact.
6. power supply system, which is characterized in that including channel switching control such as described in any one of claim 1 to 5 of supplying power with double circuit
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372450.3U CN208656417U (en) | 2018-08-24 | 2018-08-24 | Supply power with double circuit channel switching control and power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372450.3U CN208656417U (en) | 2018-08-24 | 2018-08-24 | Supply power with double circuit channel switching control and power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208656417U true CN208656417U (en) | 2019-03-26 |
Family
ID=65791109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821372450.3U Active CN208656417U (en) | 2018-08-24 | 2018-08-24 | Supply power with double circuit channel switching control and power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208656417U (en) |
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2018
- 2018-08-24 CN CN201821372450.3U patent/CN208656417U/en active Active
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