CN207977785U - A kind of far and near control exclusive circuit of coal mine high and low voltage switch - Google Patents
A kind of far and near control exclusive circuit of coal mine high and low voltage switch Download PDFInfo
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- CN207977785U CN207977785U CN201820530756.0U CN201820530756U CN207977785U CN 207977785 U CN207977785 U CN 207977785U CN 201820530756 U CN201820530756 U CN 201820530756U CN 207977785 U CN207977785 U CN 207977785U
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Abstract
The utility model is related to the technical fields of ON-OFF control circuit,More particularly to a kind of far and near control exclusive circuit of coal mine high and low voltage switch,It makes the high and low voltage switch of coal mine have the function of local button control locking telecommunication control or the local button control of telecommunication control locking,The separating brake control of coal mine high-pressure bottom switch can be controlled by telecommunication and local button,And the remote computer on ground can monitor coal mine high and low voltage switch control model state in real time,For the existing priority of the control of underground coal mine high and low voltage switch,It is again selective,The remote proximity switch of coal mine is mutually latched,The start-stop of coal mine high and low voltage switch can be managed convenient and reasonablely in this way,The design of the far and near control exclusive circuit of coal mine high and low voltage switch,Promote the safety reliability of coal mine high and low voltage switch,Security risk is prevented,Prevent the contingency caused by unordered start-stop coal mine high and low voltage switch.
Description
Technical field
The utility model is related to the technical field of ON-OFF control circuit more particularly to a kind of distances of coal mine high and low voltage switch
Control exclusive circuit.
Background technology
As mine automation technology high-speed develops, Monitor Parameters of Coal Mine Substation unattended system is gradually applied on coal mine,
In electric substation's unattended system operating process, there are two types of control modes for the high and low voltage switch tool of Monitor Parameters of Coal Mine Substation at present：One
It is that come Communication Control, this is switched on-off by controlling the remote computer on ground, second is that being pressed by the local switch for controlling underground
Button carrys out the break-make of the Communication Control high and low voltage switch；But both control modes and without any priority and selectivity, the two
It works independently between each other so that high and low voltage switch control is unrestricted, can not manage, and ground handling operator and underground are safeguarded
For personnel in the case where communication has some setbacks, there are some potential safety problemss in practical operation.
Invention content
The purpose of this utility model is to provide a kind of distance of the flexible coal mine high and low voltage switch of mode switching control mode
Exclusive circuit is controlled, a variety of operation working conditions of the practical power automatic system of coal mine are suitble to.
The utility model provides a kind of far and near control exclusive circuit of coal mine high and low voltage switch, including:
For the telecommunication closing circuit for remote control；
For the local button closing circuit for locally controlling；
Relay K1 and relay K2, wherein have first coil power supply branch and the second coil power supply branch alternatively to
The coil of relay K2 provides supply voltage, and the contact K1-1 of relay K1 is connected in series in first coil power supply branch, relay
The normally closed interlock K2-1 of device J2 is connected in series in the telecommunication closing circuit, the normally open contact K2-2 series connection of relay K2
It is connected in the local button closing circuit；
Voltage switching device alternatively provides power supply electricity to first coil power supply branch or the second coil power supply branch
Pressure；
Processor U1；
Remote communication module, the remote control signal received by are sent to processor U1；
Switching tube Q1, is used to control the cut-off/conducting in the coil power supply circuit of relay K1, and processor U1 is according to being connect
The remote control signal received controls cut-off/conducting of switching tube Q1, to control relay K1 contact K1-1 disconnection/
It is closed, to control cut-off/conducting of first coil power supply branch；
Voltage switching device provides supply voltage then to first coil power supply branch：
The contact K1-1 of switching tube Q1 control relays K1 is disconnected, and then makes first coil power supply branch cut-off, to enable
On the one hand relay K2 is closed normally closed interlock K2-1 because of power-off, to make the telecommunication closing circuit be connected, another party
Face makes normally open contact K2-2 disconnect, to make the local button closing circuit be not turned on；
The contact K1-1 of switching tube Q1 control relays K1 is closed, and then makes first coil power supply branch conducting, to enable
Relay K2 is electric because obtaining, and on the one hand disconnects normally closed interlock K2-1, another to make the telecommunication closing circuit be not turned on
Aspect makes normally open contact K2-1 be closed, to make the local button closing circuit conducting；
Voltage switching device provides supply voltage then to the second coil power supply branch：
Relay K2 is electric because obtaining, and on the one hand disconnects normally closed interlock K2-1, to make the telecommunication closing circuit not
On the other hand conducting is closed normally open contact K2-1, to make the local button closing circuit conducting.
Wherein, further include break-make shape for detecting the telecommunication closing circuit and the local button closing circuit
The detection circuit of state, the detection circuit send detected status signal to processor U1.
Wherein, the detection circuit includes photoelectrical coupler OC1, the input terminal connection relay K2 of photoelectrical coupler OC1
Coil, the output end connection processing device U1 of photoelectrical coupler OC1.
Wherein, photoelectrical coupler OC1 uses TLP521 chips.
Wherein, the remote communication module includes communication chip U2 and communication isolation circuit, and communication chip U2 is through described logical
It interrogates isolation circuit and receives the remote control signal, and the remote control signal is sent to processor U1.
Wherein, the communication isolation circuit includes photoelectrical coupler OC2, described in the input terminal of photoelectrical coupler OC2 receives
Remote control signal, the output end connecting communication chip U2 of photoelectrical coupler OC2.
Wherein, photoelectrical coupler OC2 uses PC410 chips.
The beneficial effects of the utility model are：
When voltage switching device provides supply voltage (i.e. far control pattern) then to first coil power supply branch：
If the contact K1-1 of relay K1 is disconnected by switching tube Q1, to enable relay K2 because of power-off, on the one hand
So that normally closed interlock K2-1 is closed, to make telecommunication closing circuit be connected, on the other hand disconnects normally open contact K2-2, to
Local button closing circuit is set to be not turned on, that is to say, that it is effective with regard to telecommunication closing circuit, it is latched local button and closes a floodgate back
Road then only controls the combined floodgate of coal mine high and low voltage switch by telecommunication；
, whereas if the contact K1-1 of relay K1 is closed by switching tube Q1, to enable relay K2 electric because obtaining, one
Aspect makes normally closed interlock K2-1 disconnect, and to make telecommunication closing circuit be not turned on, on the other hand closes normally open contact K2-1
It closes, to make local button closing circuit be connected, that is to say, that local button closing circuit is effective, and locking telecommunication is closed a floodgate
Circuit only passes through the combined floodgate of local button control coal mine high and low voltage switch.
When voltage switching device provides supply voltage (i.e. closely control pattern) then to the second coil power supply branch:
Relay K2 is electric because obtaining, and on the one hand disconnects normally closed interlock K2-1, to make telecommunication closing circuit be not turned on,
On the other hand it is closed normally open contact K2-1, to make local button closing circuit be connected, that is to say, that local button closes a floodgate back
Road is effective, is latched telecommunication closing circuit, only passes through the combined floodgate of local button control coal mine high and low voltage switch.
In summary so that there is the high and low voltage switch of coal mine local button control to be latched telecommunication control or long-range logical
The function of the local button control of news control locking, in addition, since voltage switching device is arranged in downhole coal mine electric substation, with local
It can see that coal mine switch equipment is priority principle, coal mine high and low voltage switch is set as nearly control pattern, telecommunication control will
Failure, and coal mine high and low voltage switch is set as remote control pattern, telecommunication control is effective, and can be arranged by telecommunication
Remote controlled manner or local button control mode.No matter under which kind of pattern, the separating brake control of coal mine high-pressure bottom switch by
Telecommunication and local button can control, and for the existing priority of the control of underground coal mine high and low voltage switch, and have choosing
Selecting property, the remote proximity switch of coal mine are mutually latched, and the start-stop of coal mine high and low voltage switch can be managed convenient and reasonablely in this way, normal
In the case of unattended, remote control pattern, telecommunication control mode can be set to so that the management of coal mine high and low voltage switch
Power has floor control completely；If when coal mine high and low voltage switch is tested in staff's usually inspection, can have and be arranged to far control mould
Formula, and local button control mode is set, staff can be facilitated to test coal mine high and low voltage switch, but if needing service switch
When, it is set as nearly control pattern, is latched remote control pattern, ground computer remote Communication Control is entirely ineffective, will not surprisingly be sent because of ground
Electricity causes safety accident when repair.The design of the far and near control exclusive circuit of coal mine high and low voltage switch, promotes coal mine height and presses off
The safety reliability of pass, has prevented security risk, prevents the contingency caused by unordered start-stop coal mine high and low voltage switch.
Description of the drawings
Using attached drawing, the utility model is described in further detail, but the embodiment in attached drawing is not constituted to the utility model
Any restrictions for those of ordinary skill in the art without creative efforts, can also be according to following attached
Figure obtains other attached drawings.
Fig. 1 is the circuit diagram of the far and near control exclusive circuit of the utility model coal mine high and low voltage switch.
Include in Fig. 1：1 --- first coil power supply branch, 2 --- the second coil power supply branch.
Specific implementation mode
The utility model is further described with the following Examples.
The utility model provides a kind of far and near control exclusive circuit of coal mine high and low voltage switch, as shown in Figure 1, including:
For the telecommunication closing circuit for remote control；
For the local button closing circuit for locally controlling；
Relay K1 and relay K2, wherein have first coil power supply branch 1 and the second coil power supply branch 2 alternatively
Supply voltage is provided to the coil of relay K2, the contact K1-1 of relay K1 is connected in series in first coil power supply branch 1, after
The normally closed interlock K2-1 of electric appliance J2 is connected in series in telecommunication closing circuit, and the normally open contact K2-2 series connection of relay K2 connects
It is connected in local button closing circuit；
Voltage switching device S1 alternatively provides power supply to first coil power supply branch 1 or the second coil power supply branch 2
Voltage；
Processor U1；
Remote communication module, the remote control signal received by are sent to processor U1；
Switching tube Q1, is used to control the cut-off/conducting in the coil power supply circuit of relay K1, and processor U1 is according to being connect
The remote control signal received controls cut-off/conducting of switching tube Q1, to control relay K1 contact K1-1 disconnection/
It is closed, to control cut-off/conducting of first coil power supply branch 1；
Voltage switching device S1 provides supply voltage then to first coil power supply branch 1：
The contact K1-1 of switching tube Q1 control relays K1 is disconnected, and then first coil power supply branch 1 is made to end, to enable
On the one hand relay K2 is closed normally closed interlock K2-1 because of power-off, to make telecommunication closing circuit be connected, on the other hand make
Normally open contact K2-2 is disconnected, to make local button closing circuit be not turned on；
The contact K1-1 of switching tube Q1 control relays K1 is closed, and then first coil power supply branch 1 is made to be connected, to enable
Relay K2 is electric because obtaining, and on the one hand disconnects normally closed interlock K2-1, to make telecommunication closing circuit be not turned on, on the other hand
Normally open contact K2-1 is set to be closed, to make local button closing circuit be connected；
Voltage switching device S1 provides supply voltage then to the second coil power supply branch 2：
Relay K2 is electric because obtaining, and on the one hand disconnects normally closed interlock K2-1, to make telecommunication closing circuit be not turned on,
On the other hand it is closed normally open contact K2-1, to make local button closing circuit be connected.
When voltage switching device S1 provides supply voltage (i.e. far control pattern) then to first coil power supply branch 1：
If the contact K1-1 of relay K1 is disconnected by switching tube Q1, to enable relay K2 because of power-off, on the one hand
So that normally closed interlock K2-1 is closed, to make telecommunication closing circuit be connected, on the other hand disconnects normally open contact K2-2, to
Local button closing circuit is set to be not turned on, that is to say, that it is effective with regard to telecommunication closing circuit, it is latched local button and closes a floodgate back
Road then only controls the combined floodgate of coal mine high and low voltage switch by telecommunication；
, whereas if the contact K1-1 of relay K1 is closed by switching tube Q1, to enable relay K2 electric because obtaining, one
Aspect makes normally closed interlock K2-1 disconnect, and to make telecommunication closing circuit be not turned on, on the other hand closes normally open contact K2-1
It closes, to make local button closing circuit be connected, that is to say, that local button closing circuit is effective, and locking telecommunication is closed a floodgate
Circuit only passes through the combined floodgate of local button control coal mine high and low voltage switch.
When voltage switching device S1 provides supply voltage (i.e. closely control pattern) then to the second coil power supply branch 2:
Relay K2 is electric because obtaining, and on the one hand disconnects normally closed interlock K2-1, to make telecommunication closing circuit be not turned on,
On the other hand it is closed normally open contact K2-1, to make local button closing circuit be connected, that is to say, that local button closes a floodgate back
Road is effective, is latched telecommunication closing circuit, only passes through the combined floodgate of local button control coal mine high and low voltage switch.
In summary so that there is the high and low voltage switch of coal mine local button control to be latched telecommunication control or long-range logical
The function of the local button control of news control locking, in addition, since voltage switching device S1 settings are in downhole coal mine electric substation, with this
Ground can see that coal mine switch equipment is priority principle, and coal mine high and low voltage switch is set as nearly control pattern, telecommunication control
It will fail, and coal mine high and low voltage switch is set as remote control pattern, telecommunication control is effective, and can be set by telecommunication
Set remote controlled manner or local button control mode.No matter under which kind of pattern, the separating brake control of coal mine high-pressure bottom switch
It can be controlled by telecommunication and local button, for the existing priority of the control of underground coal mine high and low voltage switch, and be had
Selectivity, the remote proximity switch of coal mine are mutually latched, and the start-stop of coal mine high and low voltage switch can be managed convenient and reasonablely in this way, just
In the case of often unattended, remote control pattern, telecommunication control mode can be set to so that the pipe of coal mine high and low voltage switch
Reason power has floor control completely；If when coal mine high and low voltage switch is tested in staff's usually inspection, can have and be arranged to far control
Pattern, and local button control mode is set, staff can be facilitated to test coal mine high and low voltage switch, but if needing service switch
When, it is set as nearly control pattern, is latched remote control pattern, ground computer remote Communication Control is entirely ineffective, will not surprisingly be sent because of ground
Electricity causes safety accident when repair.The design of the far and near control exclusive circuit of coal mine high and low voltage switch, promotes coal mine height and presses off
The safety reliability of pass, has prevented security risk, prevents the contingency caused by unordered start-stop coal mine high and low voltage switch.
In the present embodiment, detection circuit detects the on off operating mode of telecommunication closing circuit and local button closing circuit
Detection circuit, detection circuit send detected status signal to processor U1, processor U1 and the status signal are sent to
Remote computer on ground, the remote computer on such ground can monitor coal mine high and low voltage switch control model state in real time.
Specifically, detection circuit includes the photoelectrical coupler OC1 of model TLP521 chips, the input terminal connection of photoelectrical coupler OC1
The coil of relay K2, the output end connection processing device U1 of photoelectrical coupler OC1, due to photoelectrical coupler OC1 inputs and output
Be mutually isolated between circuit, and electric signal transmission when have many advantages, such as one-way, have good anti-electromagnetic wave interference performance with
Electrical isolation capabilities.
In the present embodiment, remote communication module includes communication chip U2 and communication isolation circuit, and communication chip U2 is through communication
Isolation circuit receives remote control signal, and the remote control signal is sent to processor U1.Specifically, communication isolation circuit packet
The photoelectrical coupler OC2 of model PC410 chips is included, the input terminal of photoelectrical coupler OC2 receives the remote control signal, photoelectricity
The output end connecting communication chip U2 of coupler OC2.Due to being mutually isolated between photoelectrical coupler OC2 inputs and output circuit, and
Electric signal has many advantages, such as one-way in transmission, has good anti-electromagnetic wave interference performance and electrical isolation capabilities.
Finally it should be noted that above example is only to illustrate the technical solution of the utility model, rather than to this reality
With the limitation of novel protected range, although being explained in detail to the utility model with reference to preferred embodiment, this field it is general
Lead to it will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the utility model, without departing from this
The spirit and scope of utility model technical solution.
Claims (7)
1. a kind of far and near control exclusive circuit of coal mine high and low voltage switch, which is characterized in that including:
For the telecommunication closing circuit for remote control；
For the local button closing circuit for locally controlling；
Relay K1 and relay K2, wherein have first coil power supply branch and the second coil power supply branch alternatively to relay
The coil of device K2 provides supply voltage, and the contact K1-1 of relay K1 is connected in series in first coil power supply branch, relay J2
Normally closed interlock K2-1 be connected in series in the telecommunication closing circuit, the normally open contact K2-2 of relay K2 is connected in series with
In the local button closing circuit；
Voltage switching device alternatively provides supply voltage to first coil power supply branch or the second coil power supply branch；
Processor U1；
Remote communication module, the remote control signal received by are sent to processor U1；
Switching tube Q1 is used to control the cut-off/conducting in the coil power supply circuit of relay K1, and processor U1 is received by
Remote control signal control cut-off/conducting of switching tube Q1, to control relay K1 contact K1-1 it is disconnected opening/closing
It closes, to control cut-off/conducting of first coil power supply branch；
Voltage switching device provides supply voltage then to first coil power supply branch：
The contact K1-1 of switching tube Q1 control relays K1 is disconnected, and then makes first coil power supply branch cut-off, to enable relay
On the one hand device K2 is closed normally closed interlock K2-1 because of power-off, to make the telecommunication closing circuit be connected, on the other hand make
Normally open contact K2-2 is disconnected, to make the local button closing circuit be not turned on；
The contact K1-1 of switching tube Q1 control relays K1 is closed, and then makes first coil power supply branch conducting, to enable relay
Device K2 is electric because obtaining, and on the one hand disconnects normally closed interlock K2-1, to make the telecommunication closing circuit be not turned on, on the other hand
Normally open contact K2-1 is set to be closed, to make the local button closing circuit conducting；
Voltage switching device provides supply voltage then to the second coil power supply branch：
Relay K2 is electric because obtaining, and on the one hand disconnects normally closed interlock K2-1, to make the telecommunication closing circuit be not turned on,
On the other hand it is closed normally open contact K2-1, to make the local button closing circuit conducting.
2. a kind of far and near control exclusive circuit of coal mine high and low voltage switch according to claim 1, which is characterized in that further include
Detection circuit for the on off operating mode for detecting the telecommunication closing circuit and the local button closing circuit, the inspection
Slowdown monitoring circuit send detected status signal to processor U1.
3. a kind of far and near control exclusive circuit of coal mine high and low voltage switch according to claim 2, which is characterized in that the inspection
Slowdown monitoring circuit includes photoelectrical coupler OC1, the coil of the input terminal connection relay K2 of photoelectrical coupler OC1, photoelectrical coupler OC1
Output end connection processing device U1.
4. a kind of far and near control exclusive circuit of coal mine high and low voltage switch according to claim 3, which is characterized in that photoelectricity coupling
Clutch OC1 uses TLP521 chips.
5. a kind of far and near control exclusive circuit of coal mine high and low voltage switch according to claim 1, which is characterized in that described remote
Journey communication module includes communication chip U2 and communication isolation circuit, and communication chip U2 receives described remote through the communication isolation circuit
Process control signal, and the remote control signal is sent to processor U1.
6. a kind of far and near control exclusive circuit of coal mine high and low voltage switch according to claim 5, which is characterized in that described logical
News isolation circuit includes photoelectrical coupler OC2, and the input terminal of photoelectrical coupler OC2 receives the remote control signal, photoelectricity coupling
The output end connecting communication chip U2 of clutch OC2.
7. a kind of far and near control exclusive circuit of coal mine high and low voltage switch according to claim 6, which is characterized in that photoelectricity coupling
Clutch OC2 uses PC410 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820530756.0U CN207977785U (en) | 2018-04-13 | 2018-04-13 | A kind of far and near control exclusive circuit of coal mine high and low voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820530756.0U CN207977785U (en) | 2018-04-13 | 2018-04-13 | A kind of far and near control exclusive circuit of coal mine high and low voltage switch |
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| Publication Number | Publication Date |
|---|---|
| CN207977785U true CN207977785U (en) | 2018-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820530756.0U Active CN207977785U (en) | 2018-04-13 | 2018-04-13 | A kind of far and near control exclusive circuit of coal mine high and low voltage switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109873500A (en) * | 2019-04-12 | 2019-06-11 | 北京机械设备研究所 | The multi-functional power supply crossover sub of one kind and its application method |
-
2018
- 2018-04-13 CN CN201820530756.0U patent/CN207977785U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109873500A (en) * | 2019-04-12 | 2019-06-11 | 北京机械设备研究所 | The multi-functional power supply crossover sub of one kind and its application method |
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