CN207689848U - A kind of electric control circuit and controller - Google Patents

A kind of electric control circuit and controller Download PDF

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Publication number
CN207689848U
CN207689848U CN201721895987.3U CN201721895987U CN207689848U CN 207689848 U CN207689848 U CN 207689848U CN 201721895987 U CN201721895987 U CN 201721895987U CN 207689848 U CN207689848 U CN 207689848U
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CN
China
Prior art keywords
linkage
normally opened
linkage normally
opened contact
contact
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Active
Application number
CN201721895987.3U
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Chinese (zh)
Inventor
王普军
史军瑞
赵学勇
姬丙和
张起钧
徐继福
张德新
沙泉
程子建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Petrochina Co Ltd
China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
Priority date (The priority date 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 date listed.)
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Priority to CN201721895987.3U priority Critical patent/CN207689848U/en
Application granted granted Critical
Publication of CN207689848U publication Critical patent/CN207689848U/en
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Abstract

The utility model discloses a kind of electric control circuit and controllers, electric control circuit includes main contactor, the first intermediate relay, the second intermediate relay, push button switch, run indicator and stops indicator light, wherein, the main contactor includes first coil, the first linkage normally opened contact, the second linkage normally opened contact, third linkage normally opened contact, four-axle linkage normally opened contact, the first linkage normally-closed contact and the second linkage normally-closed contact;First intermediate relay includes the second coil, the 5th linkage normally opened contact, the 6th linkage normally opened contact and third linkage normally-closed contact;Second intermediate relay includes tertiary coil, the 7th linkage normally opened contact, four-axle linkage normally-closed contact and the 5th linkage normally-closed contact;First linkage normally opened contact one end is connected to electrical equipment, and the other end is connected to three phase mains.Electric control circuit and controller provided by the utility model can control electrical equipment by an automatic reset switch button.

Description

A kind of electric control circuit and controller
Technical field
The utility model is related to field of electrical control, more particularly to a kind of electric control circuit and controller.
Background technology
In electrical engineering, the operation of electrical equipment is generally controlled by electrical equipment controller.Electrical equipment controls It is provided with button on the control panel of device and indicates the indicator light of electric equipment operation state.When need start electrical equipment When, operation button switch indicates that the indicator light of electric equipment operation is bright;When needing to stop the operation of electrical equipment, operation is opened Button is closed, operation electrical equipment indicator light out of service is bright.
Currently, being typically provided with two switch buttons on the panel of electrical equipment controller, it is respectively intended to control electric appliance and sets Standby operation and stopping.
In the process of implementing the utility model, the inventor finds that the existing technology has at least the following problems:
Since there are two switch buttons for setting on the panel of electrical equipment controller, when emergency occurs, operator Member is possible to push the wrong button, to cause electrical equipment to damage, it is also possible to the harm personal safety of operating personnel when serious.
Utility model content
In view of this, a kind of electric control circuit of the utility model offer and controller, to be automatically reset out by one Button is closed to control electrical equipment.
Specifically, including following technical scheme:
In a first aspect, the utility model provides a kind of electric control circuit, including main contactor, the first intermediate relay Device, the second intermediate relay, push button switch, run indicator and stopping indicator light, wherein
The main contactor includes that first coil, the first linkage normally opened contact, the second linkage normally opened contact, third linkage are normal Open contact, four-axle linkage normally opened contact, the first linkage normally-closed contact and the second linkage normally-closed contact;
First intermediate relay includes the second coil, the 5th linkage normally opened contact, the 6th linkage normally opened contact and the Three linkage normally-closed contacts;
Second intermediate relay includes tertiary coil, the 7th linkage normally opened contact, four-axle linkage normally-closed contact and the Five linkage normally-closed contacts;
First linkage normally opened contact one end is connected to electrical equipment, and the other end is connected to three phase mains;
It is first power supply output end of the three phase mains, the second power supply output end of the three phase mains, described automatic multiple Position button switch, the first linkage normally-closed contact, four-axle linkage normally-closed contact and second coil are sequentially connected in series into circuit, The 5th linkage normally opened contact is in parallel with the first linkage normally-closed contact;
The second linkage normally opened contact, third linkage normally-closed contact are connected to institute after connecting with the tertiary coil The first tie point and described second between push button switch and the first linkage normally-closed contact is stated for electricity output Between the second tie point between end and second coil, the 7th linkage normally opened contact links normally opened tactile with described second Point is in parallel;
It is connected to institute after the 6th linkage normally opened contact, the 5th linkage normally-closed contact and first coil series connection Between stating third tie point and second tie point between the first power supply output end and push button switch, institute It is in parallel with the 6th linkage normally opened contact to state third linkage normally opened contact;
The four-axle linkage normally opened contact be connected to after connecting with the run indicator second tie point with it is described Between third tie point;
It is described second linkage normally-closed contact connect with the stopping indicator light after be connected to second tie point with it is described Between third tie point.
Selectively, it is connected with breaker between the first linkage normally opened contact and the three phase mains.
Selectively, it is connected with the first electrothermal relay between the electrical equipment and the first linkage normally opened contact.
Selectively, it is connected with the second electrothermal relay between the third tie point and the first power supply output end.
Selectively, it is connected with first fuse between the third tie point and the first power supply output end.
Selectively, second tie point is connected with second fuse with the second power supply output end.
Second aspect, the utility model additionally provide a kind of controller, including electric control circuit described above and control Case processed, wherein
The electric control circuit is arranged in the shell of the control cabinet, and push button switch, operation instruction Lamp and stopping indicator light exposing the shell of the control cabinet.
Selectively, there are three power cord entrance holes for setting on the shell of the control cabinet.
Selectively, there are three load outlet hole for setting on the shell of the control cabinet.
The advantageous effect of technical solution that the utility model embodiment provides is:
It includes main contact that the utility model embodiment, which provides a kind of electric control circuit and controller, electric control circuit, Device, the first intermediate relay, the second intermediate relay, push button switch SB, run indicator HL1 and stopping indicator light HL2 realizes the control to electrical equipment under the collective effect of main contactor, the first intermediate relay and the second intermediate relay System.When electrical equipment powers off, stopping indicator light HL2 is bright, and run indicator HL1 extinguishes;Push button switch SB is pressed, Push button switch SB moments disconnect again after being closed, and are powered using electric equipment, stop indicator light HL2 and extinguish, operation instruction Lamp HL1 is lighted;When electrical equipment is powered, push button switch SB is pressed, push button switch SB moments are closed It disconnects, is powered off using electric equipment again afterwards, stop indicator light HL2 and light, run indicator HL1 extinguishes.Therefore, the utility model is real The electric control circuit for applying example offer controls the energization and power-off of electrical equipment by an automatic reset switch button, can carry The safety of height operation.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is the schematic diagram for the electric control circuit that the utility model embodiment provides;
Fig. 2 is the structural schematic diagram for the controller that the utility model embodiment provides;
Fig. 3 is the structural schematic diagram for the controller that the utility model embodiment provides.
Reference numeral in figure indicates respectively:
SB, push button switch;
HL1, run indicator;
HL2, stop indicator light;
KM, first coil;
KM1, the first linkage normally opened contact;
KM2, the second linkage normally opened contact;
KM3, third linkage normally opened contact;
KM4, four-axle linkage normally opened contact;
KM5, the first linkage normally-closed contact;
KM6, the second linkage normally-closed contact;
KA1, the second coil;
KA11, the 5th linkage normally opened contact;
KA12, the 6th linkage normally opened contact;
KA13, third linkage normally-closed contact;
KA2, tertiary coil;
KA21, the 7th linkage normally opened contact;
KA22, four-axle linkage normally-closed contact;
KA23, the 5th linkage normally-closed contact;
L1, the first power supply output end;
L2, the second power supply output end;
L3, third power supply output end;
M, motor;
QF, breaker;
QF1, control handle;
FR1, the first electrothermal relay;
FR2, the second electrothermal relay;
FU1, first fuse;
FU2, second fuse;
PE, ground wire;
A, the first tie point;
B, the second tie point;
C, third tie point;
1, control cabinet;
101, power cord entrance hole;
102, outlet hole is loaded;
103, ground wire outlet hole;
104, zero curve outlet hole.
Specific implementation mode
To keep the technical solution of the utility model and advantage clearer, the utility model is implemented below in conjunction with attached drawing Mode is described in further detail.
The utility model provides a kind of electric control circuit, as shown in Figure 1, including main contactor, the first intermediate relay Device, the second intermediate relay, push button switch SB, run indicator HL1 and stopping indicator light HL2, wherein main contact Device include first coil KM, the first linkage normally opened contact KM1, the second linkage normally opened contact KM2, third linkage normally opened contact KM3, Four-axle linkage normally opened contact KM4, the first linkage normally-closed contact KM5 and the second linkage normally-closed contact KM6;First intermediate relay packet Include the second coil KA1, the 5th linkage normally opened contact KA11, the 6th linkage normally opened contact KA12 and third linkage normally-closed contact KA13;Second intermediate relay includes tertiary coil KA2, the 7th linkage normally opened contact KA21, four-axle linkage normally-closed contact KA22 With the 5th linkage normally-closed contact KA23;One end of first linkage normally opened contact KM1 is connected to electrical equipment, and the other end is connected to three Phase power supply;First power supply output end L1 of three phase mains, the second power supply output end L2, the push button switch of three phase mains SB, the first linkage normally-closed contact KM5, four-axle linkage normally-closed contact KA22 and the second coil KA1 are sequentially connected in series into circuit, 5-linked Dynamic normally opened contact KA11 is in parallel with the first linkage normally-closed contact KM5;Second linkage normally opened contact KM2, third linkage normally-closed contact KA13 is connected to the between the linkages of push button switch SB and first normally-closed contact KM5 after connecting with tertiary coil KA2 Between the second tie point B between the power supplies of one tie point A and first output end L1 and the second coil KA1, the 7th linkage is normally opened Contact KA21 is in parallel with the second linkage normally opened contact KM2;6th linkage normally opened contact KA12, the 5th linkage normally-closed contact The third that KA23 and first coil KM is connected to after connecting between the second power supply output end L2 and push button switch SB connects Between contact C and the second tie point B, third linkage normally opened contact KM3 is in parallel with the 6th linkage normally opened contact KA12;Four-axle linkage Normally opened contact KM4 is connected to after connecting with run indicator HL1 between the second tie point B and third tie point C;Second linkage is normal Closed contact KM6 is connected to after connecting with stopping indicator light HL2 between the second tie point B and third tie point C.
The operation principle of the electric control circuit provided below the utility model embodiment is described:
When in use, when electrical equipment is in off-position, the first coil KM of main contactor is not charged, the second linkage Normally-closed contact KM6 is closed, and it is bright to stop indicator light HL2.
When needing to start electrical equipment, push button switch SB is pressed, then push button switch SB is closed Moment disconnects afterwards.When push button switch SB is closed, the second coil KA1 electrifications make the 5th linkage normally opened contact KA11 It is closed with the 6th linkage normally opened contact KA12, third linkage normally-closed contact KA13 is disconnected.6th linkage normally opened contact KA12 is closed Afterwards, the first coil KM electrifications of main contactor make the first linkage normally opened contact KM1, the second linkage normally opened contact KM2, third connection Dynamic normally opened contact KM3 and four-axle linkage normally opened contact KM4 are closed, the first linkage normally-closed contact KM5 and the second linkage normally-closed contact KM6 is disconnected, then run indicator HL1 is bright, is stopped indicator light HL2 and is extinguished.After first linkage normally-closed contact KM5 is disconnected, due to the Five linkage normally opened contact KA11 are closed, then the second coil KA1 electrifications, to make first coil KM charge.
When push button switch SB is disconnected, the second coil KA1 is not charged, the 5th linkage normally opened contact KA11 and the Six linkage normally opened contact KA12 are disconnected, and third linkage normally-closed contact KA13 is closed.After the 6th linkage normally opened contact KA12 is disconnected, Since third linkage normally opened contact KM3 is closed, then first coil KM is charged, to make the first linkage normally opened contact KM1 and the 4th Linkage normally opened contact KM4 is kept closed, and run indicator HL1 is lighted, and electrical equipment is powered.
When needing to stop electrical equipment, push button switch SB is pressed, then push button switch SB is closed Moment disconnects afterwards.When push button switch SB is closed, since the second linkage normally opened contact KM2 and third linkage are normally closed tactile Point KA13 is closed, then tertiary coil KA2 is charged, to make the 7th linkage normally opened contact KA21 be closed, four-axle linkage normally-closed contact The linkage normally-closed contacts of KA22 and the 5th KA23 is disconnected, then first coil KM and the second coil KA1 power-off, to which the first linkage is normally opened Contact KM1, the second linkage normally opened contact KM2, third linkage normally opened contact KM3 and four-axle linkage normally opened contact KM4 are disconnected, and first Link the linkage normally-closed contact KM6 of normally-closed contact KM5 and second, and then electrical equipment powers off, and run indicator HL1 extinguishes, and stops Indicator light HL2 is bright.
After push button switch SB is disconnected, first coil KM, the second coil KA1 and tertiary coil KA2 without Electricity does not influence electrical equipment, run indicator HL1 and the state for stopping indicator light HL2.
Wherein, as shown in Figure 1, first one end linkage normally opened contact KM1 is connected to motor M.When in use, motor M and use Electric equipment connects, and the operating of motor M drives electrical equipment operation.
The electric control circuit that the utility model embodiment provides, including in main contactor, the first intermediate relay, second Between relay, push button switch SB, run indicator HL1 and stop indicator light HL2;Among main contactor, first The collective effect of relay and the second intermediate relay, which is got off, realizes control to electrical equipment.When electrical equipment powers off, stop Only indicator light HL2 is bright, and run indicator HL1 extinguishes;Press push button switch SB, push button switch SB moments It disconnects after closure, is powered using electric equipment again, stop indicator light HL2 and extinguish, run indicator HL1 is lighted;When electrical equipment is logical When electric, push button switch SB is pressed, disconnection again after push button switch SB moments are closed is disconnected using electric equipment Electricity stops indicator light HL2 and lights, and run indicator HL1 extinguishes.Therefore, the electrical control electricity that the utility model embodiment provides Road controls the energization and power-off of electrical equipment by an automatic reset switch button, and the safety of operation can be improved.
In the utility model embodiment, as shown in Figure 1, being connected between the first linkage normally opened contact KM1 and three phase mains There is circuit breaker Q F.
So set, circuit breaker Q F can be disconnected automatically in the case where the abnormal conditions such as electric leakage, short circuit, overcurrent occurs in circuit, make three Phase power supply is disconnected with motor M, so as to protect the safety of operating personnel and circuit.It should be noted that the utility model Breaker QF may also be arranged between the linkage normally opened contacts of motor M and first KM1 in embodiment.
In the utility model embodiment, as shown in Figure 1, being connected with the between the linkages of motor M and first normally opened contact KM1 One electrothermal relay FR1.
So set, after motor M starts, when circuit malfunctions or exception, the first electrothermal relay FR1 can be in electricity When throat floater is increased to certain height and certain temperature, the connection between motor M and three phase mains is disconnected, to protect electricity Road safe operation.
In the utility model embodiment, as shown in Figure 1, being connected between the power supply output ends of third tie point C and first L1 There is the second electrothermal relay FR2.
So set, after motor M starts, when circuit malfunctions or exception, the second electrothermal relay FR2 can be in electricity When throat floater is increased to certain height and certain temperature, the connection between third tie point C and three phase mains is disconnected, to Protect control circuit.
In the utility model embodiment, as shown in Figure 1, being connected between the power supply output ends of third tie point C and first L1 There is first fuse FU1;The power supplies of second tie point B and second output end L2 is connected with second fuse FU2.
So set, control circuit electric current be more than specified value after a certain period of time, first fuse FU1 and/or second Fuse FU2 makes Melt molten with its own heat generated, to make control circuit disconnect, reaches the effect of protection control circuit Fruit.
In the utility model embodiment, as shown in Figure 1, motor M is also associated with ground wire PE.In addition, three phase mains also connects It is connected to zero curve.
The utility model embodiment additionally provides a kind of controller, including the electric control circuit that provides of above-described embodiment and Control cabinet 1, wherein electric control circuit is arranged in the shell of control cabinet 1, and push button switch SB, operation instruction Lamp HL1 and the shell for stopping indicator light HL2 exposing control cabinets 1.
In the controller provided using the utility model embodiment, when electrical equipment is in off-position, press certainly Dynamic reset button switch SB, run indicator HL1 are lighted, and are stopped indicator light HL2 and are extinguished;When electrical equipment is in energized state When, push button switch SB is pressed, run indicator HL1 extinguishes, and stops indicator light HL2 and lights.Therefore, the utility model The controller that embodiment provides, the control by a push button switch SB to electrical equipment improve safe operation Property, and by run indicator HL1 on the shell of control cabinet 1 and stop indicator light HL2 and can obtain the state of electrical equipment, Compare intuitive.
Wherein, as shown in Figure 1, being additionally provided with the control handle QF1 of circuit breaker Q F on the shell of control cabinet 1, convenient for disconnected Road device QF is controlled.
In the utility model embodiment, as shown in Figure 1, there are three power cord entrance holes for setting on the shell of control cabinet 1 101。
In this way, L3 points of the first power supply output end L1, the second power supply output end L2 and the third power supply output end of three phase mains It is not entered in control cabinet 1 by a power cord entrance hole 101, can avoid three power supply output ends and wind mutually.
In the utility model embodiment, as shown in Figure 1, being also set up on the shell of control cabinet 1, there are three load outlet hole 102。
In this way, three load connecting lines of control circuit are extended to by a load outlet hole 102 outside control cabinet 1 respectively Portion is connect with electrical equipment, be can avoid entering in control cabinet 1 and is wound mutually.
In the utility model embodiment, as shown in Figure 1, being additionally provided with 103 He of ground wire outlet hole on the shell of control cabinet 1 Zero curve outlet hole 104 is respectively used to through ground wire PE and zero curve.
In this application, it should be understood that term " first ", " second " etc. are used for description purposes only, and should not be understood as It indicates or implies relative importance or implicitly indicate the quantity of indicated technical characteristic.
The above is merely for convenience of it will be understood by those skilled in the art that the technical solution of the utility model, not to Limit the utility model.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on, It should be included within the scope of protection of this utility model.

Claims (9)

1. a kind of electric control circuit, which is characterized in that including main contactor, the first intermediate relay, the second intermediate relay, Push button switchs (SB), run indicator (HL1) and stops indicator light (HL2), wherein
The main contactor include first coil (KM), first linkage normally opened contact (KM1), second linkage normally opened contact (KM2), Third links normally opened contact (KM3), four-axle linkage normally opened contact (KM4), the first linkage normally-closed contact (KM5) and the second linkage often Closed contact (KM6);
First intermediate relay, which includes the second coil (KA1), the 5th linkage normally opened contact (KA11), the 6th linkage is normally opened touches Point (KA12) and third linkage normally-closed contact (KA13);
Second intermediate relay, which includes tertiary coil (KA2), the 7th linkage normally opened contact (KA21), four-axle linkage is normally closed touches Point (KA22) and the 5th linkage normally-closed contact (KA23);
First linkage one end normally opened contact (KM1) is connected to electrical equipment, and the other end is connected to three phase mains;
The three phase mains first power supply output end (L1), the three phase mains second power supply output end (L2), it is described from Dynamic reset button switch (SB), the first linkage normally-closed contact (KM5), four-axle linkage normally-closed contact (KA22) and described second Coil (KA1) is sequentially connected in series into circuit, the 5th linkage normally opened contact (KA11) and the first linkage normally-closed contact (KM5) It is in parallel;
The second linkage normally opened contact (KM2), third linkage normally-closed contact (KA13) are gone here and there with the tertiary coil (KA2) The first tie point being connected to after connection between the push button switch (SB) and the first linkage normally-closed contact (KM5) (A) described and between the second tie point (B) between the second power supply output end (L2) and second coil (KA1) 7th linkage normally opened contact (KA21) is in parallel with second linkage normally opened contact (KM2);
The 6th linkage normally opened contact (KA12), the 5th linkage normally-closed contact (KA23) and the first coil (KM) string The third tie point (C) being connected to after connection between the first power supply output end (L1) and push button switch (SB) And between second tie point (B), the third linkage normally opened contact (KM3) and the 6th linkage normally opened contact (KA12) It is in parallel;
The four-axle linkage normally opened contact (KM4) is connected to second tie point after connecting with the run indicator (HL1) (B) between the third tie point (C);
The second linkage normally-closed contact (KM6) is connected to second tie point after connecting with the stopping indicator light (HL2) (B) between the third tie point (C).
2. electric control circuit according to claim 1, which is characterized in that it is described first linkage normally opened contact (KM1) with Breaker (QF) is connected between the three phase mains.
3. electric control circuit according to claim 1, which is characterized in that the electrical equipment and first linkage are normal It opens and is connected with the first electrothermal relay (FR1) between contact (KM1).
4. electric control circuit according to claim 1, which is characterized in that the third tie point (C) and described first It is connected with the second electrothermal relay (FR2) between power supply output end (L1).
5. electric control circuit according to claim 1, which is characterized in that the third tie point (C) and described first It is connected with first fuse (FU1) between power supply output end (L1).
6. electric control circuit according to claim 1, which is characterized in that second tie point (B) and described second Power supply output end (L2) is connected with second fuse (FU2).
7. a kind of controller, which is characterized in that including claim 1-6 any one of them electric control circuit and control cabinet (1), wherein
The electric control circuit is arranged in the shell of the control cabinet (1), and push button switch (SB), operation refer to Show lamp (HL1) and stops the shell that indicator light (HL2) exposes the control cabinet (1).
8. controller according to claim 7, which is characterized in that there are three electricity for setting on the shell of the control cabinet (1) Source line entrance hole (101).
9. controller according to claim 7, which is characterized in that there are three negative for setting on the shell of the control cabinet (1) Set out string holes (102).
CN201721895987.3U 2017-12-29 2017-12-29 A kind of electric control circuit and controller Active CN207689848U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721895987.3U CN207689848U (en) 2017-12-29 2017-12-29 A kind of electric control circuit and controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721895987.3U CN207689848U (en) 2017-12-29 2017-12-29 A kind of electric control circuit and controller

Publications (1)

Publication Number Publication Date
CN207689848U true CN207689848U (en) 2018-08-03

Family

ID=62992675

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721895987.3U Active CN207689848U (en) 2017-12-29 2017-12-29 A kind of electric control circuit and controller

Country Status (1)

Country Link
CN (1) CN207689848U (en)

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