CN204408308U - A kind of one-out-three load switch module - Google Patents
A kind of one-out-three load switch module Download PDFInfo
- Publication number
- CN204408308U CN204408308U CN201520141714.4U CN201520141714U CN204408308U CN 204408308 U CN204408308 U CN 204408308U CN 201520141714 U CN201520141714 U CN 201520141714U CN 204408308 U CN204408308 U CN 204408308U
- Authority
- CN
- China
- Prior art keywords
- switching device
- load
- detecting circuit
- cpu
- position detecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Keying Circuit Devices (AREA)
Abstract
A kind of one-out-three load switch module, described module is by CPU and drive circuit (6), switching device J1 and J2, corresponding to the position detecting circuit (1) of switching device J1, corresponding to the position detecting circuit (2) of switching device J2, switching device J3 and position detecting circuit (3) thereof, controllable silicon (4), resistance R and electric capacity C, communication interface (8), voltage detecting circuit (7) and load (5) are formed.Described switching device J1 and switching device J2 is bistable magnetic and keeps a change over switch; Described switching device J3 is bistable magnetic maintained switch device or monostable normally closed switch device.The utility model switching capacity is large, and long service life, at least can ensure the life-span of 100,000 times within the scope of full temperature, under rated load.The utility model is owing to adopting magnetic holding structure, and oneself power consumption is low, and volume is little.The connected mode of J1, J2, J3 that the utility model adopts, can ensure that user's power supply can be short-circuited at no time.
Description
Technical field
The utility model relates to a kind of one-out-three load switch module, belongs to electronic power switch technical field.
Background technology
At electric power system and industrial control field, frequent needs are switched to single-phase load a certain phase in A, B, C three-phase at any time, a kind of low voltage electric load intelligent dispensing system disclosed in publication number CN 103545826 and the three-phase load unbalance involved by distribution method thereof are administered, and just need this switch module.
In order to improve the reliability of single-phase electric devices power supply, multiple power supply may be needed as subsequent use, wherein also needing the switch module using such.
In transformer regulating equipment, in order to power load supply voltage can be made to stablize, need constantly to adjust power taps, wherein also need such switch.
For load switch, its technical conditions must meet:
1, in commutation process, interruption duration is short as far as possible, is preferably lower than 20ms, and power consumption equipment can not be restarted when electrical source exchange;
2, whenever all can not to be short-circuited and decompression phenomenon;
3, long service life, at least will ensure the life-span of 100,000 times within the scope of full temperature, under rated load;
4, switching capacity is large;
5, oneself power consumption is low, and volume is little.
Can meet the switch of above-mentioned rigors, domestic and international Yet-have did not meet report or product uses.Obviously, development one-out-three load switch module is very great for industrial control field meaning.
Summary of the invention
The purpose of this utility model is, according to the demand of existing power equipment, discloses a kind of one-out-three load switch module.
Realizing the technical solution of the utility model is:
A kind of one-out-three load switch of the utility model module, by CPU and drive circuit, switching device J1, switching device J2, corresponding to position detecting circuit 1 and the position detecting circuit 2 of switching device J1 and switching device J2, switching device J3 and position detecting circuit 3 thereof, controllable silicon, resistance R and electric capacity C, communication interface, voltage detecting circuit and load are formed.Position detecting circuit 1 is connected to the W1 end of CPU and drive circuit, and position detecting circuit 2 is connected to the W2 end of CPU and drive circuit, and position detecting circuit 3 is connected to the W3 end of CPU and drive circuit.Coil L11, L12 of switching device J1 are connected respectively to J11, J12 end of CPU and drive circuit, and coil L21, L22 of switching device J2 are connected respectively to J21, J22 end of CPU and drive circuit; The coil L31 of switching device J3 is connected to the J31 end of CPU and drive circuit.The Z1 end of switching device J1 connects the Y2 end of J2, and the Z2 of switching device J2 holds the X3 end of connecting valve device J3; Load two ends connect Z3 and zero line UN respectively; Resistance R and electric capacity C connects afterwards and controllable silicon is parallel between Z3 and X3, and silicon controlled control end is connected to the G1 end of CPU and drive circuit; Voltage detecting circuit connects the YJ end of load and CPU and drive circuit respectively.
Described CPU and drive circuit are computer chips of the present utility model, for detecting, calculating, control.
Described switching device J1 is that bistable magnetic keeps a change over switch, and described switching device J2 is that bistable magnetic keeps a change over switch, JI and J2 is the magnetic maintenance change over switch device that the utility model realizes load switching; Switching device J3 is bistable magnetic maintained switch device or monostable normally closed switch device.
Described position detecting circuit 1, position detecting circuit 2, position detecting circuit 3 are the testing circuits synchronously reflecting the current position of J1, J2 and J3.
Described switching device J3 forms combination switch together with controllable silicon, and forms cascade with J2, can ensure that switching device J1 and switching device J2 is when performing switching action, works under zero load or low load condition.
Described resistance R and electric capacity C is for when combination switch action, eliminates because inductive load shutdown transient produces high-tension crowbar circuit.
Described voltage detecting is that it can ensure in normal operation, and load can not dead electricity for detecting the whether charged circuit of load.
Described communication interface is the utility model one-out-three load switch module and outside communication interface, for performing the order that external equipment is assigned to this module.
The diverter switch device J1 that the utility model uses and switching device J2 is bistable state one change over switch that magnetic keeps, be characterized in: whenever have a docking point and only have a docking point to be connect, that is: be not Z-X connect be exactly Z-Y connect, there is no intermediateness.When coil L11 or L12, the L21 L22 that do not have extraneous power supply to be added on it, it remains on this state always, and L11 or L12, L21 L22 do not need excitation, also namely do not need the energy, thus ensure that the utility model power consumption when normal work is very little.
As can be seen from accompanying drawing, no matter which type of there is with the control circuit of J1 and J2 to change, or say any fault, the Z2 that the connected mode of switching device J1 and switching device J2 cascade determines switching device J2 can only connect with in UA or UB or UC and necessarily have one to connect, and such a construction ensures the uniqueness that three elections switch is selected.
2 magnetic adopting cascade system to connect have been selected to keep bistable state one change over switch device J1 and switching device J2, hardware ensure that between three inputs and an output, necessarily have and only have an input and output conducting, whenever all can not produce short circuit and also can not make load non-transformer.Switching device J1 and switching device J2 has selected magnetic holding structure, and switching device J3 can adopt bistable magnetic holding structure, also can adopt the normally closed structure of monostable, makes complete machine power consumption when normal operation minimum.
Switching device J3 is bistable magnetic maintained switch device or monostable normally closed switch device, be in normally off under normal circumstances, that is: switching device J3 is when non-powered state, Z3-X3 is just in on-state, and does not need power supply, without running power consumption, this both reduced power consumption, in turn ensure that the control circuit relevant with switching device J3 was when Individual elements lost efficacy, Z3-X3 is still in on-state, thus ensure that load can obtain stable power supply supply.
The monostable normally closed switch device of described switching device J3 refers to that its coil is not when having excitation, switch is in connects normally off in other words conj.or perhaps, in season during its coil magnetization, this switch becomes off-state, is characterized in only having a coil and not having magnetic holding structure.
The bistable magnetic maintained switch device of described switching device J3 has 2 coils, in season wherein first coil magnetization time, this switch becomes a kind of state, for example, X-Z connect, first coil not excitation time, this switch still keeps X-Z to be in on-state; In season during second coil magnetization, this switch becomes a kind of state, for example, Y-Z connect, second coil not excitation time, this switch still keeps Y-Z to be in on-state.
Position detecting circuit 1, position detecting circuit 2 and position detecting circuit 3 synchronously detect the state of each switching device, and tell CPU and drive circuit 6 information by contact W1, W2 and W3.
Select and the position probing of switching device J1, switching device J2 and switching device J3 state synchronized and circuit thereof, make CPU and drive circuit at any time can know current on off state, thus can ensure that the power supply of user at any time can reliably supply.
Voltage detecting circuit is for detecting the whether charged circuit of load, and when CPU and drive circuit detect voltage detecting decompression by YJ, mandatory, the repetitious switching of starting switch device J3 immediately, until load has power supply.
Three-phase voltage U A, voltage between UB, UC may be higher, and in the low-voltage circuit of three-phase and four-line, this voltage likely reaches 500V.Accomplish minimum in order to make switching device J1 and switching device J2 at the volume switched in equivalent capability situation and cost, just the distance of the distance between Z1 and X1, Y1 and Z2 and X2Y2 must be made to accomplish minimum, but too small distance is likely when switching, because the load thrown away can produce electric arc on contact, and the load newly accessed is connected in 1-2ms, this occurs possibly because the adhesion of electric arc causes the serious consequence of phase fault.In order to solve this serious problems, switching device J1 and switching device J2 just should be allowed to switch in the environment of zero load or light load, also i.e. commutating without arcing.The utility model devises the combination switch that a J3 and controllable silicon 4 are formed, before switching device J1 and switching device J2 switches, the combination switch that first cut-off switch device J3 and controllable silicon 4 are formed, then switching device J1 and switching device J2 switches, thus ensure that any once switch all can not due to electric arc adhesion produce short circuit.
The beneficial effects of the utility model are, one-out-three load switch module interruption duration in circuit handoff procedure of the utility model composition is short compared with the prior art, and power consumption equipment can not restart when electrical source exchange; The utility model switching capacity is large, and long service life, at least can ensure the life-span of 100,000 times within the scope of full temperature, under rated load; The utility model all adopts magnetic holding structure due to all switches, and oneself power consumption is low, and volume is little.The connected mode of J1, J2, J3 that the utility model adopts, can ensure that user's power supply can be short-circuited and decompression phenomenon at no time.
Accompanying drawing explanation
Fig. 1 is the utility model one-out-three load switch modular structure schematic diagram;
In figure, 1 is position detecting circuit 1; 2 is position detecting circuit 2; 3 is position detecting circuit 3; 4 is controllable silicon; 5 is load; 6 is CPU and drive circuit; 7 is voltage detecting circuit; 8 is communication interface; JI is the change over switch that bistable magnetic keeps; J2 is the change over switch that bistable magnetic keeps; J3 is that bistable magnetic keeps or monostable normally closed switch device; UA is A phase voltage; UB is B phase voltage; UC is C phase voltage; R is resistance; C is electric capacity.
Embodiment
Embodiment of the present utility model as shown in Figure 1.
A kind of one-out-three load switch of the utility model embodiment module, by CPU and drive circuit 6, switching device J1, switching device J2, corresponding to position detecting circuit 1 and the position detecting circuit 2 of switching device J1 and switching device J2, switching device J3 and position detecting circuit 3 thereof, controllable silicon 4, resistance R and electric capacity C, communication interface 8, voltage detecting circuit 7 and load 5 are formed.
Switching device J1 in the present embodiment and switching device J2 is the change over switch that bistable magnetic keeps; Switching device J3 is bistable magnetic maintained switch device or monostable normally closed switch device.
In the present embodiment, position detecting circuit 1 connects the W1 end of CPU and drive circuit 6, and position detecting circuit 2 connects the W2 end of CPU and drive circuit 6, and position detecting circuit 3 connects the W3 end of CPU and drive circuit 6.Coil L11, L12 of J1 connect J11, J12 end of CPU and drive circuit 6 respectively, and coil L21, L22 of J2 connect J21, J22 end of CPU and drive circuit 6 respectively; The coil L31 of J3 connects the J31 end of CPU and drive circuit 6.The Z1 end of J1 connects the Y2 end of J2, and the Z2 end of J2 connects the X3 end of J3; Load two ends connect Z3 and zero line UN respectively; Resistance R and electric capacity C connects afterwards and controllable silicon 4 is parallel between Z3 and X3, and the control end of controllable silicon 4 connects the G1 end of CPU and drive circuit 6; Voltage detecting circuit 7 connects the YJ end of load 5 and CPU and drive circuit 6 respectively.
The handoff procedure of the present embodiment is described below:
(1) load 5 is allowed to access UA
CPU and drive circuit 6 course of work are: set G1 makes controllable silicon 4 conducting, after the time of time delay, and set J31, L31 excitation, makes Z3 and the X3 of J3 disconnect, the motion of Z3, drive position probing 3 action, after CPU and drive circuit 6 detect the displacement of W3 signal, namely Z3 and X3 disconnects completely, turn off G1, set J11, L11 excitation, the J21 of set simultaneously, L21 excitation, Z1 and the Y1 of J1 connects, and Z2 and the Y2 of J2 connects.The motion of Z1Z2, drive position probing 1 and position probing 2 action, after CPU and drive circuit 6 detect that position probing 1 and position probing 2 conjugate, close J11, J21 immediately, the G1 of set simultaneously makes controllable silicon 4 conducting, after the time of time delay, close J31, CPU and drive circuit 6 turn off G1 after the displacement of W3 signal being detected, complete this and switch.
(2) load 5 is allowed to access UB
CPU and drive circuit 6 course of work are: set G1 makes controllable silicon 4 conducting, after the time of time delay, and set J31, L31 excitation, makes Z3 and the X3 of J3 disconnect, the motion of Z3, drive position probing 3 action, after CPU and drive circuit 6 detect the displacement of W3 signal, namely Z3 and X3 disconnects completely, turn off G1, set J12, L12 excitation, the J21 of set simultaneously, L21 excitation, Z1 and the X1 of J1 connects, and Z2 and the Y2 of J2 connects.The motion of Z1Z2, drive position probing 1 and position probing 2 action, after CPU and drive circuit 6 detect the displacement of position probing 1 position probing 2, close J12, J21 immediately, the G1 of set simultaneously makes controllable silicon 4 conducting, after the time of time delay, close J31, CPU and drive circuit 6 turn off G1 after the displacement of W3 signal being detected, complete this and switch.
(3) load 5 is allowed to access UC
CPU and drive circuit 6 course of work are: set G1 makes controllable silicon 4 conducting, after the time of time delay, and set J31, L31 excitation, Z3 and the X3 of J3 is disconnected, the motion of Z3, drive position probing 3 action, after CPU and drive circuit 6 detect the displacement of W3 signal, namely Z3 and X3 disconnects completely, turns off G1, set J22, L22 excitation, Z2 and the X2 of J2 connects.The motion of Z2, drives position probing 2 action, and CPU and drive circuit 6 close J22 after detecting that position probing 2 conjugates immediately, the G1 of set simultaneously makes controllable silicon 4 conducting, after the time of time delay, closes J31, CPU and drive circuit 6 turn off G1 after the displacement of W3 signal being detected, complete this and switch.
Claims (7)
1. an one-out-three load switch module, it is characterized in that, described module is by CPU and drive circuit, switching device J1 and switching device J2, corresponding to the position detecting circuit 1 of switching device J1, corresponding to the position detecting circuit 2 of switching device J2, switching device J3 and position detecting circuit 3 thereof, controllable silicon, resistance R and electric capacity C, communication interface, voltage detecting circuit and load are formed;
Described position detecting circuit 1 connects the W1 end of CPU and drive circuit, and described position detecting circuit 2 connects the W2 end of CPU and drive circuit, and described position detecting circuit 3 connects the W3 end of CPU and drive circuit; Coil L11, L12 of switching device J1 connect J11, J12 end of CPU and drive circuit respectively, and coil L21, L22 of switching device J2 connect J21, J22 end of CPU and drive circuit respectively; The coil L31 of switching device J3 connects the J31 end of CPU and drive circuit; The Z1 of switching device J1 holds the Y2 end of connecting valve device J2, the Z2 of switching device J2 to hold the X3 end of connecting valve device J3; Load two ends connect Z3 and zero line UN respectively; Resistance R and electric capacity C connects afterwards and controllable silicon is parallel between Z3 and X3, and silicon controlled control end connects the G1 end of CPU and drive circuit; Voltage detecting circuit connects the YJ end of load and CPU and drive circuit respectively;
Described switching device J1 is that bistable magnetic keeps a change over switch; Described switching device J2 is that bistable magnetic keeps a change over switch; Described switching device J3 is bistable magnetic maintained switch device or monostable normally closed switch device.
2. a kind of one-out-three load switch module according to claim 1, is characterized in that, described switching device J1, whenever have a docking point and only have a docking point be connect, be not namely Z-X connect be exactly Z-Y connect, there is no intermediateness; When not having extraneous power supply to be added to coil L11 on it or L12, it remains on this state always, and L11 or L12 does not need excitation, does not also namely need the energy, thus ensure that the present invention's power consumption when normal work is very little; Described switching device J2 has the characteristic identical with switching device J1.
3. a kind of one-out-three load switch module according to claim 1, it is characterized in that, described switching device J3 is in normally off under normal circumstances, that is: switching device J3 is when non-powered state, and Z3-X3 is just in on-state, and do not need power supply, without running power consumption, this both reduced power consumption, in turn ensure that the control circuit relevant with switching device J3 was when Individual elements lost efficacy, Z3-X3 is still in on-state, thus ensure that load can obtain stable power supply supply.
4. a kind of one-out-three load switch module according to claim 1, it is characterized in that, described position detecting circuit 1, position detecting circuit 2, position detecting circuit 3 are the testing circuits synchronously reflecting switching device J1, switching device J2 and the current position of switching device J3.
5. a kind of one-out-three load switch module according to claim 1, it is characterized in that, described switching device J3 forms combination switch together with controllable silicon, and form cascade with J2, can ensure that switching device J1 and switching device J2 is when performing switching action, works under zero load or low load condition.
6. a kind of one-out-three load switch module according to claim 1, is characterized in that, described resistance R and electric capacity C is for when combination switch action, eliminates because inductive load shutdown transient produces high-tension crowbar circuit.
7. a kind of one-out-three load switch module according to claim 1, it is characterized in that, described switching device J1 and switching device J2 adopt cascade system to be connected, the Z2 that the connected mode of described switching device J1 and switching device J2 cascade determines switching device J2 can only connect with in three-phase voltage U A or UB or UC and necessarily have one to connect, and such a construction ensures the uniqueness that three elections switch is selected; Hardware ensure that between three inputs and an output necessarily have and only have an input and output conducting, whenever all can not produce short circuit and open circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520141714.4U CN204408308U (en) | 2015-03-13 | 2015-03-13 | A kind of one-out-three load switch module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520141714.4U CN204408308U (en) | 2015-03-13 | 2015-03-13 | A kind of one-out-three load switch module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204408308U true CN204408308U (en) | 2015-06-17 |
Family
ID=53432138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520141714.4U Expired - Fee Related CN204408308U (en) | 2015-03-13 | 2015-03-13 | A kind of one-out-three load switch module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204408308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104660237A (en) * | 2015-03-13 | 2015-05-27 | 刘友仁 | One-out-three load transfer switch module |
-
2015
- 2015-03-13 CN CN201520141714.4U patent/CN204408308U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104660237A (en) * | 2015-03-13 | 2015-05-27 | 刘友仁 | One-out-three load transfer switch module |
| CN104660237B (en) * | 2015-03-13 | 2017-07-04 | 刘友仁 | A kind of one-out-three load switch module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204425031U (en) | A kind of intelligent diverter switch | |
| CN104362751B (en) | A kind of intelligence switching switch | |
| CN105305470A (en) | Low-voltage load balance adjustment device for power distribution network, and automatic phase-change switch | |
| CN106300398B (en) | Interphase load transfer terminal device based on steady-state waveform fitting | |
| CN104009537A (en) | Box-type substation for switching between main power source and standby power source | |
| CN102611189A (en) | Double-power-supply switching device and controlling method thereof | |
| CN104600834A (en) | Emergency power supply circuit and power supply circuit conversion method | |
| CN204408308U (en) | A kind of one-out-three load switch module | |
| CN106451500B (en) | Interphase load transfer terminal device based on transient waveform fitting | |
| CN103515150A (en) | Hybrid relay | |
| CN203574382U (en) | Intelligent control circuit for controlling switching of compensating capacitor | |
| CN103441730A (en) | Motor fault-tolerant driving control system and method achieving self-repairing of faults | |
| CN204068280U (en) | The commutation device of three-phase load autobalance | |
| CN102779612A (en) | Pre-magnetizing device for main power supply transformer of electric power circuit | |
| CN201061150Y (en) | Intelligent reactive compensation contactless routing switching mechanism | |
| CN109545621A (en) | A kind of driving circuit applied to the high-power contactor of aerospace | |
| CN104660237A (en) | One-out-three load transfer switch module | |
| CN108832643A (en) | A kind of commutation system of intelligence phase-change switch | |
| CN101630916B (en) | Transformer on-load voltage regulating device and method therefor | |
| CN204376525U (en) | A kind of emergency supply circuit | |
| CN202737437U (en) | Phase failure protection circuit used for three-phase low pressure alternating current power source | |
| CN204333939U (en) | Relay protection and adaptive polarizing memory voltage time constant | |
| CN203674723U (en) | High-voltage wattless power intelligent compensation device | |
| CN206907721U (en) | A kind of breaker electric spring operating mechanism separating brake control loop | |
| CN1964154A (en) | Reactive-load compensation device to regulate unbalance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20190313 |