CN109491295A - Control system - Google Patents
Control system Download PDFInfo
- Publication number
- CN109491295A CN109491295A CN201811480207.8A CN201811480207A CN109491295A CN 109491295 A CN109491295 A CN 109491295A CN 201811480207 A CN201811480207 A CN 201811480207A CN 109491295 A CN109491295 A CN 109491295A
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- China
- Prior art keywords
- relay
- circuit
- coil
- normally opened
- opened contact
- Prior art date
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Abstract
The present invention relates to nuclear power station electic protection fields; disclose a kind of control system of energy positioning failure relay; it include: control circuit; it is connected respectively with switch module, peripheral equipment; including relay; for receiving the switching signal output control signal of switch module output, signal is controlled for realizing the combined floodgate of peripheral equipment and tripping control；Control circuit includes failure holding circuit, and failure holding circuit is configured as when shutting-brake control of the control circuit for realizing peripheral equipment, and failure holding circuit is used to indicate the relay that control circuit breaks down.Solving the problems, such as in relay-type Control card that relay breaks down can not position.
Description
Technical field
The present invention relates to nuclear power station electic protection fields, more particularly to a kind of control system of energy positioning failure relay
System.
Background technique
Nuclear power station distribution board generally includes relay plate, and relay plate is to obtain electric and power loss by relay coil
Realize that relay contact controls peripheral equipment, traditional relay plate breaks down asking of can not positioning there are relay
Topic.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of control systems of energy positioning failure relay.
To achieve the purpose of the present invention, the present invention adopts the following technical scheme:
A kind of control system, comprising:
Control circuit is connected with switch module, peripheral equipment respectively, including relay, for receiving the switch module
The switching signal output control signal of output, combined floodgate and tripping control of the control signal for realizing the peripheral equipment；
The control circuit includes failure holding circuit, and the failure holding circuit is configured as using when the control circuit
When realizing the shutting-brake control of the peripheral equipment, the failure holding circuit is used to indicate what the control circuit broke down
Relay.
Above-mentioned control system is relay-type control system, its working principle is that: relay is controlled using switch module
The purpose for obtaining electric and power loss and realizing relay contact control peripheral equipment of coil, control circuit further includes failure holding circuit,
Failure holding circuit includes malfunction indicator lamp, is used to indicate the relay to break down in control circuit, solve it is traditional after
Relay breaks down the problem of can not positioning in electric appliance type Control card.
The control circuit in one of the embodiments, including relay K1, the relay K1 are configured as working as institute
When stating shutting-brake control of the control circuit for realizing the peripheral equipment, the coil of the relay K1 is in obtain electricity condition；Institute
Failure holding circuit is stated, is connected with the breakdown switch in the switch module, normally-closed contact, relay including the relay K1
Device K2 and failure indicating circuit, the coil string of the breakdown switch, the normally-closed contact of the relay K1 and the relay K2
It is associated between the positive and negative anodes of power supply, the normally-closed contact of the relay K1 is in parallel with the normally opened contact of the relay K2, described
The coil of relay K2 is in parallel with failure indicating circuit.
The control circuit includes: in one of the embodiments,
Contacting controling circuit is connected with the closing switch in the switch module, the closing coil in peripheral equipment respectively,
Including relay K3, the coil and the closing switch of the relay K3 is connected between the positive and negative anodes of the power supply, described
The first end of the coil of relay K1 is connected with the anode of the power supply, the second end of the coil of the relay K1 respectively with institute
State closing coil first end, the cathode of power supply is connected, the second end of the closing coil by the normally opened contact of relay K3 with
The anode of the power supply is connected, the contacting controling circuit for realizing the peripheral equipment shutting-brake control；
Trip control circuit, respectively with normally opened contact, the peripheral equipment of the trip protection relay in the switch module
In breaking coil be connected, including relay K4, the normally opened touching of the coil of the relay K4 and the trip protection relay
Point is connected between the positive and negative anodes of the power supply, and the normally opened contact and the breaking coil of the relay K4 is connected on the electricity
Between the positive and negative anodes in source, the tripping control circuit controls for realizing the tripping of the peripheral equipment.
The tripping control circuit in one of the embodiments, further include:
The coil and the trip switch in the switch module of relay K5, the relay K5 are connected on the power supply
Between positive and negative anodes, the normally opened contact of the relay K5 is in parallel with the normally opened contact of the relay K4 to form the first electricity in parallel
Road, first parallel circuit and the breaking coil are connected between the positive and negative anodes of the power supply.
The control circuit in one of the embodiments, further include:
Locking control circuit is connected with the breakdown switch in the switch module, including relay K6, the relay K6
Normally opened contact and the coil of the relay K6 be connected between the positive and negative anodes of the power supply, the coil of the relay K6 with
The coils from parallel connection of coils of the relay K4, and the normally-closed contact of the relay K6 is connected with the coil of the relay K1.
The relay K3 includes normally opened contact K31, normally opened contact K32, normally opened contact in one of the embodiments,
K33 and normally opened contact K34, the normally opened contact K31 and normally opened contact K32 connect to form the first series circuit, the normally opened touching
Point K33 and normally opened contact K34 connects to form the second series circuit, and first series circuit and second series circuit are in parallel
The second parallel circuit is formed, the second end of the closing coil is connected by the second parallel circuit with the anode of the power supply.
In one of the embodiments, further include:
Indicating circuit, including light emitting diode and first resistor, the light emitting diode are connected shape with the first resistor
At third series circuit, the third series circuit is in parallel with the relay coil in the control circuit respectively.
In one of the embodiments, further include:
Freewheeling circuit, including diode and second resistance, the diode connect to form the 4th string with the second resistance
Join circuit, the 4th series circuit is in parallel with the relay coil in the control circuit respectively, and flows through the diode
Current direction it is opposite with the current direction for flowing through the coil.
It in one of the embodiments, further include circuit board, the slot of the pin of the relay and the circuit board is logical
It crosses bolt to fix, and the pin of the relay is inserting column.
The relay passes through packed by metal casing on the circuit board in one of the embodiments, the metal
It is envelope filled to have inert gas, and the junction of the metal shell and the circuit board is equipped with Gold plated Layer.
Detailed description of the invention
Fig. 1 is the system construction drawing of control system in an embodiment；
Fig. 2 is the circuit diagram of failure holding circuit in an embodiment；
Fig. 3 is the circuit diagram of contacting controling circuit in an embodiment；
Fig. 4 is the circuit diagram of tripping control circuit in an embodiment；
Fig. 5 is the circuit diagram of tripping control circuit in another embodiment；
Fig. 6 is the circuit diagram of control circuit in an embodiment；
Fig. 7 is the circuit diagram of contacting controling circuit in another embodiment；
Fig. 8 is the circuit diagram of tripping control circuit in another embodiment；
Fig. 9 is the circuit diagram of indicating circuit in an embodiment；
Figure 10 is the circuit diagram of freewheeling circuit in an embodiment；
Figure 11 is the circuit diagram of control circuit in another embodiment；
Figure 12 is the circuit diagram of control system in an embodiment.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to the disclosure.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.In the description of the present invention, " several " are meant that at least one, such as one,
Two etc., unless otherwise specifically defined.
In the description of the present invention, it is to be understood that, term " on ", "lower", "vertical", "horizontal", "inner", "outside" etc.
The orientation or positional relationship of instruction is method based on the figure or positional relationship, is merely for convenience of the description present invention and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore be not considered as limiting the invention.
It is the system construction drawing of control system in an embodiment referring to Fig. 1, Fig. 1.
A kind of control system, comprising:
Control circuit 10 is connected with switch module 20, peripheral equipment 30 respectively, including relay, for receiving switching molding
The switching signal output control signal that block 20 exports, controls signal for realizing the combined floodgate of peripheral equipment 30 and tripping control；
Control circuit 10 includes failure holding circuit 100, and failure holding circuit 100 is configured as being used for when control circuit 10
When realizing the shutting-brake control of peripheral equipment 30, failure holding circuit 100 is used to indicate the relay that control circuit 10 breaks down.
Above-mentioned control system is relay-type control system, its working principle is that: relay is controlled using switch module 20
The purpose for obtaining electric and power loss and realizing relay contact control peripheral equipment 30 of device coil, control circuit 10 further include that failure is kept
Circuit 100 is used to indicate the relay to break down in control circuit 10, solves traditional relay-type Control card relaying
Electric appliance breaks down the problem of can not positioning.
Further, referring to fig. 2, circuit diagram of the Fig. 2 for failure holding circuit in an embodiment, control circuit 10, including
Relay K1, relay K1 are configured as when shutting-brake control of the control circuit 10 for realizing peripheral equipment 30, relay K1
Coil K10 be in obtain electricity condition；Failure holding circuit 100 is connected with the breakdown switch T1 in switch module 20, including described
Normally-closed contact K11, relay K2 and the failure indicating circuit 101 of relay K1, the normally-closed contact of breakdown switch T1, relay K1
The coil K20 of K11 and relay K2 is connected between the positive and negative anodes of 125V DC power supply, the normally-closed contact K11 of relay K1 with
The normally opened contact K21 of relay K2 is in parallel, and the coil K20 of relay K2 is in parallel with failure indicating circuit 101.
Wherein, the coil K10 of relay K1 is in obtain electricity condition when control circuit 10 is for realizing shutting-brake control, that is, exists
When shutting-brake control, the normally-closed contact K11 of relay K1 is disconnected, therefore the coil K20 power loss of relay K2；When in control circuit
When relay breaks down, the coil K10 power loss of relay K1, the normally-closed contact K11 closure of relay K1, the line of relay K2
The indicator light that circle K20 is obtained in electric, in parallel with the coil K20 of relay K2 failure indicating circuit 101 is lighted, meanwhile, relay
The normally opened contact K21 of K2 is closed, and specifically, failure indicating circuit 101 includes resistance R1 and light emitting diode L1, as long as failure is opened
It closes T1 and is constantly in closed state, even if Failure elimination, the coil K20 of relay K2 can be constantly in obtain electricity condition, and failure refers to
Show that the light emitting diode in circuit 101 can also be constantly in illuminating state.Operations staff can pass through the bright of light emitting diode L1
Situation of going out judges the relay to break down, operations staff can disconnect electricity by disconnecting breakdown switch T1 after finding failure
Source is with closing fault holding circuit 100.
Further, control circuit 10 includes:
Referring to Fig. 3, Fig. 3 is the circuit diagram of contacting controling circuit in an embodiment, contacting controling circuit 102, respectively with open
It is connected to close the closing switch T2 in module 20, the closing coil Q1 in peripheral equipment 30, including relay K3, the line of relay K3
Circle K30 and closing switch T2 is connected between the positive and negative anodes of power supply, the first end of the coil K10 of relay K1 and the anode of power supply
It is connected, the second end of the coil K10 of relay K1 is connected with the cathode of closing coil Q1 first end, power supply respectively, closing coil
The second end of Q1 is connected by the normally opened contact K31 of relay K3 with the anode of power supply, and contacting controling circuit 102 is for realizing outer
The shutting-brake control of peripheral equipment 30.
Referring to fig. 4, Fig. 4 be an embodiment in trip control circuit circuit diagram, trip control circuit 103, respectively with open
It closes the normally opened contact T3 of trip protection relay in module 20, the breaking coil Q2 in peripheral equipment 30 to be connected, including relay
The coil K40 of device K4, relay K4 and the normally opened contact T3 of trip protection relay are connected between the positive and negative anodes of power supply, relay
The normally opened contact K41 and breaking coil Q2 of device K4 is connected between the positive and negative anodes of power supply, and the control circuit 103 that trips is for realizing outer
The tripping of peripheral equipment 30 controls.
In the present embodiment, the power supply of control system mainly includes 125V DC power supply and 24V DC power supply.
Wherein, in contacting controling circuit 102, the coil K30 and closing switch T2 of relay K3 is connected on 24V direct current
Between the positive and negative anodes in source, the first end of the coil K10 of relay K1 is connected with the anode of 125V DC power supply, the line of relay K1
The second end of circle K10 is connected with the cathode of closing coil Q1 first end, 125V DC power supply respectively, the second end of closing coil Q1
It is connected by the normally opened contact K31 of relay K3 with the anode of 125 DC power supplies, the working principle of contacting controling circuit 102 are as follows:
When closing switch T2 closure, the coil K30 of relay K3 obtains electric, the normally opened contact K31 closure of relay K3, and relay K1
Coil K10 be constantly in obtain electricity condition, therefore closing coil Q1 obtains electric, closes a floodgate to be realized by the contact of closing coil Q1
Control.
In tripping control circuit 103, the coil K40 of relay K4 and the normally opened contact T3 of trip protection relay are gone here and there
Join, between the positive and negative anodes of 125V DC power supply, the normally opened contact K41 and breaking coil Q2 of relay K4 is connected on 125V direct current
Between the positive and negative anodes in source, wherein the coil of trip protection relay can be connected on the power supply or generator in peripheral equipment,
When power supply or the voltage at generator both ends is not in threshold range, the coil of trip protection relay obtain it is electric, trip protection after
The normally opened contact T3 of electric appliance is closed, and the coil K40 of relay K4 obtains electric, the normally opened contact K41 closure of relay K4, breaking coil
Q2 obtain it is electric, to realize trip protection by the contact of breaking coil Q2.
Further, trip control circuit 103 further include:
Referring to Fig. 5, Fig. 5 is the circuit diagram of tripping control circuit in another embodiment, relay K5, the coil of relay K5
Trip switch T4 in K50 and switch module 20 is connected between the positive and negative anodes of power supply, the normally opened contact K51 of relay K5 with after
The normally opened contact K41 parallel connection of electric appliance K4 forms the first parallel circuit, and the first parallel circuit and breaking coil Q2 are connected on power supply
Between positive and negative anodes.
Specifically, the trip switch T4 in the coil K50 of relay K5 and switch module 20 is connected on 24V DC power supply
Between positive and negative anodes, the first parallel circuit and breaking coil Q2 are connected between the positive and negative anodes of 125V DC power supply, working principle
Are as follows: either operations staff presses trip switch T4 or the trip protection actuating of relay, breaking coil Q2 can all obtain it is electric, thus
Corresponding trip avoidance function is realized by the contact of tripping relay.
It further, is the circuit diagram of control circuit in an embodiment, control circuit 10 referring to Fig. 6, Fig. 6 further include:
Locking control circuit is connected with the breakdown switch T1 in switch module 20, including relay K6, breakdown switch T1,
The coil K60 of the normally opened contact K61 and relay K6 of relay K6 are connected between the positive and negative anodes of power supply, the coil of relay K6
K60 is in parallel with the coil K40 of relay K4, and the coil K10 of the normally-closed contact K62 and relay K1 of relay K6 connects.
Wherein, locking control circuit includes relay K6, and contacting controling circuit includes the normally-closed contact K62 of relay K6,
Tripping control circuit includes the normally opened contact K61 of the coil K60 and relay K6 of relay K6, and locking control circuit is for being latched
Trip control loop 103, its working principle is that: when the normally opened contact T3 of trip protection relay closure, the line of relay K4
The coil K60 of circle K40 and relay K6 obtains electric, and the normally opened contact K61 of the normally opened contact K41 and relay K6 of relay K4 are closed
Close, breaking coil Q2 obtain it is electric, even if the normally opened contact K41 of relay K4 break down it is not closed, it is normally opened due to relay K6
Contact K61 closure, breaking coil Q2 are constantly in obtain electricity condition, and the contact of breaking coil Q2 is connected with warning circuit, for mentioning
Operations staff's system of waking up is in tripped condition, can be by disconnecting breakdown switch T1 come unlocking after operations staff has found tripping
Tripping control.
It specifically, is the circuit diagram of contacting controling circuit in another embodiment referring to Fig. 7, Fig. 7, relay K3 includes normally opened
Contact K31, normally opened contact K32, normally opened contact K33 and normally opened contact K34, normally opened contact K31 and normally opened contact K32 connect to be formed
First series circuit, normally opened contact K33 and normally opened contact K34 connect to form the second series circuit, the first series circuit and second
Series circuit parallel connection forms the second parallel circuit, and the second end of closing coil Q1 passes through the positive phase of the second parallel circuit and power supply
Even.
Wherein, the second end of closing coil Q1 is connected by the second parallel circuit with the anode of 125V DC power supply, and second
Shunt circuit includes four normally opened contacts of relay K3, improves the reliability of shutting-brake control, is avoided only with a normally opened touching
Point causes closing coil to miss to obtain electric situation when the normally opened contact breaks down.
It specifically, is the circuit diagram of tripping control circuit in another embodiment referring to Fig. 8, Fig. 8, relay K4 includes normally opened
Contact K41, normally opened contact K42, normally opened contact K43 and normally opened contact K44, relay K5 include normally opened contact K51, normally opened contact
K52, normally opened contact K53 and normally opened contact K54, normally opened contact K41 and normally opened contact K42, normally opened contact K43 and normally opened contact
K43, normally opened contact K51 are in parallel after connecting respectively with normally opened contact K52, normally opened contact K53 with normally opened contact K54, improve jump
The reliability of lock control.
Further, referring to Fig. 9, Fig. 9 is the circuit diagram of indicating circuit in an embodiment, Fig. 9 only provide respectively with relay
Device K1, relay K5 parallel connection indicating circuit circuit diagram, further includes:
Indicating circuit, including light emitting diode and first resistor, light emitting diode connect to form third string with first resistor
Join circuit, third series circuit is in parallel with the relay coil in control circuit respectively.
Wherein, relay K3 and relay K5 connect on 24V DC power supply, relay K1, relay K2, relay
K4 and relay K6 is being connect on 125V DC power supply, therefore the line with the coil K30 of relay K3, relay K5 respectively
The resistance value for enclosing the first resistor of K50 parallel connection is 2k Ω, rated power 2W；Respectively with relay K1, relay K2, relay K4
Resistance value with the first resistor of relay K6 parallel connection is 10k Ω, rated power 3W.Light emitting diode is connected shape with first resistor
At third series circuit, third series circuit is in parallel with the relay coil in control circuit respectively, when power supply passes through relay
When coil makes relay obtain electric, instruction circuit also has electric current and passes through, and light emitting diode is lit.
Further, referring to Figure 10, Figure 10 is the circuit diagram of freewheeling circuit in an embodiment, Figure 10 only provide respectively with after
Electric appliance K1, relay K5 parallel connection freewheeling circuit circuit diagram, further includes:
Freewheeling circuit, including diode and second resistance, diode connect to form the 4th series circuit with second resistance, the
Four series circuits are in parallel with the relay coil in control circuit respectively, and flow through the current direction of diode and flow through coil
Current direction is opposite.
Specifically, the model of diode uses IN4148, the electricity that the resistance value of second resistance is accessed according to relay K1~K6
Source is different and different, wherein the second resistance in parallel with relay K1, relay K2, relay K4 and relay K6 respectively
Resistance value is 1k Ω, rated power 0.25W；Respectively in parallel with the coil K30 of relay K3, the coil K50 of relay K5
The resistance value of two resistance is 100 Ω, rated power 0.5W.Relay coil belongs to inductive load, in the wink of shutdown coil power
Between can coil both ends generate overvoltage, increase freewheeling circuit can be released effectively coil overvoltage, protective relay power supply.
Referring to Figure 11, Figure 11 is the circuit diagram of control circuit in another embodiment, and control circuit includes 8 relays of relay
Device K1~K8, each relay include 4 normally opened contacts and 4 normally-closed contacts, and the coil of each relay and instruction
Circuit, freewheeling circuit are in parallel.
It is the circuit diagram of control system in an embodiment, including failure holding circuit, shutting-brake control electricity referring to Figure 12, Figure 12
Road, tripping control circuit, locking control circuit, indicating circuit and freewheeling circuit, wherein failure holding circuit, with switch module
In breakdown switch T1 (001TO in corresponding diagram) be connected, the normally-closed contact including relay K1 (001XK in corresponding diagram)
K11, relay K2 (001XK1 in corresponding diagram) and failure indicating circuit, breakdown switch T1 (001TO), relay K1
The coil K20 of the normally-closed contact K11 and relay K2 (001XK1) of (001XK) be connected on 125V DC power supply positive and negative anodes it
Between, the normally opened contact K21 of normally-closed contact K11 and relay K2 (001XK1) of relay K1 (001XK) is in parallel, relay K2
The coil K20 of (001XK1) is in parallel with failure indicating circuit, and failure holding circuit breaks down for being located in shutting-brake control
Relay；Contacting controling circuit, respectively with closing switch T2 (CLOSE in corresponding diagram), the peripheral equipment in switch module
In closing coil Q1 be connected, including relay K3 (001XR in corresponding diagram), the coil K30 of relay K3 (001XR) and close
Lock switch T2 (CLOSE) is connected between the positive and negative anodes of 24V DC power supply, the first end of the coil K10 of relay K1 (001XK)
Be connected with the anode of 125V DC power supply, the second end of the coil K10 of relay K1 (001XK) respectively with closing coil Q1 first
End, the cathode of 125V DC power supply are connected, and the second end of closing coil Q1 passes through the normally opened contact K31 of relay K3 (001XR)
Be connected with the anode of 125V DC power supply, contacting controling circuit 102 for realizing peripheral equipment shutting-brake control；Tripping control electricity
Road, respectively and in the normally opened contact T3 of the trip protection relay in switch module (001XI in corresponding diagram), peripheral equipment
Breaking coil Q2 is connected, and including relay K4 (011XR in corresponding diagram), the coil K40 of relay K4 (011XR) and tripping are protected
The normally opened contact T3 (001XI) of shield relay is connected between the positive and negative anodes of 125V DC power supply, and relay K4's (011XR) is normal
It opens contact K41 and breaking coil Q2 is connected between the positive and negative anodes of 125V DC power supply, the control circuit that trips is for realizing periphery
The tripping of equipment 30 controls；Locking control circuit is connected with the breakdown switch T1 (001TO) in switch module, including relay
K6 (003XR in corresponding diagram), the normally opened contact K61 and relay K6 of breakdown switch T1 (001TO), relay K6 (003XR)
The coil K60 of (003XR) is connected between the positive and negative anodes of 125V DC power supply, the coil K60 and relay of relay K6 (003XR)
The coil K40 of device K4 (011XR) is in parallel, and the line of the normally-closed contact K62 and relay K1 (001XK) of relay K6 (003XR)
K10 series connection is enclosed, locking control circuit is for being latched tripping control.
It further, further include circuit board, the pin of relay and the slot of circuit board are bolted, and relay
Pin be inserting column.The slot of the pin of relay and circuit board is bolted, while relay stitch is by original
Contact pin is changed to inserting column, increases contact area, solves the problems, such as that relay pin is bad with circuit board contacts.
Further, relay passes through packed by metal casing on circuit boards, metal casing filled to have inert gas, and gold
The junction for belonging to shell and circuit board is equipped with Gold plated Layer.By the relay of original Plastic Package, it is changed to metal shell and the inside is filled
Inert gas encapsulation, while contact surface gold-plating, solve the problems, such as that relay contact oxidation rate is fast.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of control system characterized by comprising
Control circuit is connected with switch module, peripheral equipment respectively, including relay, for receiving the switch module output
Switching signal output control signal, it is described control signal for realizing the peripheral equipment combined floodgate and tripping control；
The control circuit includes failure holding circuit, and the failure holding circuit is configured as when the control circuit is for real
When the shutting-brake control of the existing peripheral equipment, the failure holding circuit is used to indicate the relay that the control circuit breaks down
Device.
2. control system according to claim 1, which is characterized in that
The control circuit, including relay K1, the relay K1 are configured as working as the control circuit for realizing described
When the shutting-brake control of peripheral equipment, the coil of the relay K1 is in obtain electricity condition；
The failure holding circuit, is connected with the breakdown switch in the switch module, the normally closed touching including the relay K1
Point, relay K2 and failure indicating circuit, the normally-closed contact and the relay K2 of the breakdown switch, the relay K1
Coil is connected between the positive and negative anodes of power supply, and the normally opened contact of the normally-closed contact of the relay K1 and the relay K2 are simultaneously
Connection, the coil of the relay K2 are in parallel with failure indicating circuit.
3. control system according to claim 2, which is characterized in that the control circuit includes:
Contacting controling circuit is connected with the closing switch in the switch module, the closing coil in peripheral equipment respectively, including
The coil and the closing switch of relay K3, the relay K3 are connected between the positive and negative anodes of the power supply, the relay
The first end of the coil of device K1 is connected with the anode of the power supply, the second end of the coil of the relay K1 respectively with the conjunction
Brake cable circle first end, power supply cathode be connected, the second end of the closing coil by the normally opened contact of relay K3 with it is described
The anode of power supply is connected, the contacting controling circuit for realizing the peripheral equipment shutting-brake control；
Trip control circuit, respectively and in the normally opened contact of the trip protection relay in the switch module, peripheral equipment
Breaking coil is connected, including relay K4, the normally opened contact string of the coil of the relay K4 and the trip protection relay
It is associated between the positive and negative anodes of the power supply, the normally opened contact and the breaking coil of the relay K4 is connected on the power supply
Between positive and negative anodes, the tripping control circuit controls for realizing the tripping of the peripheral equipment.
4. control system according to claim 3, which is characterized in that the tripping control circuit further include:
The coil of relay K5, the relay K5 are connected on the positive and negative of the power supply with the trip switch in the switch module
Between pole, the normally opened contact of the relay K5 the first parallel circuit of formation in parallel with the normally opened contact of the relay K4, institute
It states the first parallel circuit and the breaking coil is connected between the positive and negative anodes of the power supply.
5. control system according to claim 3, which is characterized in that the control circuit further include:
Locking control circuit is connected with the breakdown switch in the switch module, including relay K6, and the relay K6's is normal
The coil for opening contact and the relay K6 is connected between the positive and negative anodes of the power supply, the coil of the relay K6 with it is described
The coils from parallel connection of coils of relay K4, and the normally-closed contact of the relay K6 is connected with the coil of the relay K1.
6. control system according to claim 3, which is characterized in that the relay K3 includes normally opened contact K31, normally opened
Contact K32, normally opened contact K33 and normally opened contact K34, the normally opened contact K31 and normally opened contact K32 connect to form the first series connection
Circuit, the normally opened contact K33 and normally opened contact K34 connect to form the second series circuit, first series circuit and described
Second series circuit parallel connection forms the second parallel circuit, and the second end of the closing coil passes through the second parallel circuit and the electricity
The anode in source is connected.
7. control system according to claim 1, which is characterized in that further include:
Indicating circuit, including light emitting diode and first resistor, the light emitting diode connect to form with the first resistor
Three series circuits, the third series circuit are in parallel with the relay coil in the control circuit respectively.
8. control system according to claim 1, which is characterized in that further include:
Freewheeling circuit, including diode and second resistance, the diode connect to form the 4th series electrical with the second resistance
Road, the 4th series circuit is in parallel with the relay coil in the control circuit respectively, and flows through the electricity of the diode
It is opposite with the current direction for flowing through the coil to flow direction.
9. control system according to claim 1, which is characterized in that further include circuit board, the pin of the relay with
The slot of the circuit board is bolted, and the pin of the relay is inserting column.
10. control system according to claim 9, which is characterized in that the relay is by packed by metal casing in institute
State on circuit board, it is described it is metal casing filled have inert gas, and the junction of the metal shell and the circuit board is equipped with
Gold plated Layer.
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