CN209184232U

CN209184232U - A kind of circuit for controlling motor with phase sequence

Info

Publication number: CN209184232U
Application number: CN201821754021.2U
Authority: CN
Inventors: 胡魁国; 赵建; 黄浩华; 李小明
Original assignee: Good Dynamo-Electric Co Ltd Of Gold Of Foshan City
Current assignee: Good Dynamo-Electric Co Ltd Of Gold Of Foshan City
Priority date: 2018-10-26
Filing date: 2018-10-26
Publication date: 2019-07-30
Anticipated expiration: 2028-10-26

Abstract

The utility model discloses a kind of circuit for controlling motor with phase sequence, including power supply output module, contact modules, electrothermal relay protective module, motor module, rectification module, phase sequence module, control module, the utility model is by the way that phase sequence relay to be connect with control module, so that when phase sequence mistake or phase sequence lack, control module can not start while motor can not start, and when control module does not issue enabled instruction to motor module, control module can normally start, to intuitively represent the state whether circuit is in phase sequence mistake or phase sequence missing, mistake is checked convenient for staff.

Description

A kind of circuit for controlling motor with phase sequence

Technical field

The utility model relates to control circuit technical fields, and in particular to a kind of circuit for controlling motor with phase sequence.

Background technique

The existing circuit for controlling motor with phase sequence is that a phase sequence relay is directly connected to before motor, to work as When three phase mains accesses phase sequence mistake or phase sequence missing, motor can be automatically stopped operating due to phase sequence relay disconnecting circuit. But this way is direct-connected with phase sequence relay by motor, and there is no pass is directly generated with phase sequence relay for controller itself Connection, when motor is in halted state, can not determine that controller does not issue enabled instruction and motor is not opened at the first time The error of dynamic or phase sequence leads to phase sequence relay generation effect so that motor stalls, are unfavorable for staff and check reason.

Summary of the invention

In view of the deficiencies of the prior art, the utility model is intended to provide a kind of band that can intuitively represent phase sequence mistake The circuit for controlling motor of phase sequence.

To achieve the above objectives, the present invention adopts the following technical solutions:

A kind of circuit for controlling motor with phase sequence, including the protection of power supply output module, contact modules, electrothermal relay Module, motor module, rectification module, phase sequence module and control module, the contact modules, rectification module and phase sequence are protected The input terminal of shield module is connect after being connected in parallel with each other with the power supply output module, and the contact modules, electrothermal relay are protected It protects module and motor module is connected in series, the phase sequence module is phase sequence relay, and the phase sequence module has three A access point and two contacts, the phase sequence module are the phase sequence relay of normally open, and the rectification module is transformation Device, the secondary coil anode of the rectification module are connect with one of contact of the phase sequence module, and the phase sequence is protected Another contact of shield module is connect with the control module, the secondary coil cathode of the rectification module and the control module Connection.

Further, the power supply output module includes power module, on-load switch module and breaker module, the electricity Source module includes a 380V three-phase alternating-current supply, three firewires, a zero curve and a ground wire, and three firewires pass through institute It states and accesses the breaker module after on-load switch module, three firewires and a zero curve pass through after the breaker module from institute Breaker module output is stated, the ground wire directly connects from the power module.

Further, the contact modules include positive contactor, reversion contactor, rotate forward contactless contactor and reversion Contactless contactor, the positive contactor is powered so that the motor module rotates forward, and the reversion contactor is powered so that described Motor module reversion, the rotating forward contactless contactor control the rotating forward contactless contactor, the reversion contactless contactor control The reversion contactless contactor, the rotating forward contactless contactor and the reversion contactless contactor are controlled by the control module, The positive contactor and reversion contactor are normally open contactor.

Further, the breaker module is low-voltage circuit breaker.

Further, the electrothermal relay protective module is electrothermal relay.

Further, the rectification module is transformer, and the output voltage of the rectification module is 24V.

Further, the control module include power supply indicator, run indicator, malfunction indicator lamp, failed trunk and Positive and negative rotation relaying, the power supply indicator, run indicator, malfunction indicator lamp, failed trunk and positive and negative rotation relaying are parallel with one another, The disconnection and closure for rotating forward contactless contactor and inverting contactless contactor of contact modules described in the positive and negative rotation relay and control.

Further, it is also connected between the secondary coil anode and the contact of the phase sequence module of the rectification module One fuse, the fuse are 24V fuse.

The utility model has the following beneficial effects:

A kind of circuit for controlling motor with phase sequence of the utility model by the way that phase sequence relay is connect with control module, So that control module can not start while motor can not start, and work as control module when phase sequence mistake or phase sequence lack When not issuing enabled instruction to motor module, control module can normally start, to intuitively represent whether circuit is located In the state that phase sequence mistake or phase sequence lack, mistake is checked convenient for staff.

Detailed description of the invention

Fig. 1 is a kind of modular structure schematic diagram of the circuit for controlling motor with phase sequence of the utility model；

Fig. 2 is a kind of wire connection structure schematic diagram of the circuit for controlling motor with phase sequence of the utility model；

Specific embodiment

With reference to the accompanying drawing and specific embodiment, the utility model will be further described, in order to clearer reason Solve the technical idea of the requires of the utility model protection.

A kind of circuit for controlling motor with phase sequence of the utility model as shown in Fig. 1~2, including power supply output module 1, Contact modules 2, electrothermal relay protective module 3, motor module 4, rectification module 5, phase sequence module 6 and control module 7, institute The input terminal for stating contact modules 2, rectification module 5 and phase sequence module 6 is connected in parallel with each other the rear and power supply and exports mould Block 1 connects, and the contact modules 2, electrothermal relay protective module 3 and motor module 4 are connected in series, the phase sequence module 6 be phase sequence relay, and there are three access point and two contacts for the tool of phase sequence module 6, and the phase sequence module 6 is normal The phase sequence relay of open state, the rectification module 5 are transformer, secondary coil anode and the phase of the rectification module 5 One of contact of sequence protective module 6 connects, another contact of the phase sequence module 6 and the control module 7 connect It connects, the secondary coil cathode of the rectification module 5 is connect with the control module 7.

When the utility model at work, after phase sequence accesses, if send phase sequence mistake or phase sequence missing, the phase sequence Protective module 6 is in an off state, so that control module 7 can not connect electricity, so that control module 7 can not be opened, and When control module 7 does not issue enabled instruction to motor module 4, control module 7 can normally start, to intuitively indicate Whether circuit is in the state of phase sequence mistake or phase sequence missing out, checks mistake convenient for staff.

Further, further, the power supply output module 1 includes power module 11, on-load switch module 12 and breaks Road device module 13, the power module 11 include a 380V three-phase alternating-current supply, three firewires, a zero curve and a ground Line, three firewires access the breaker module 13 after passing through the on-load switch module 12, three firewires and one zero Line exports after passing through the breaker module 13 from the breaker module 13, and the ground wire is directly from the power module 11 It connects.

It, can be with more specifically, on-load switch module 12 and breaker module 13 are arranged at the three-phase alternating-current supply of 380V The circuit of 380V is tentatively protected.

Further, the breaker module 13 is low-voltage circuit breaker.

More specifically, using low-voltage circuit breaker level pressure protection can be carried out to circuit.

Further, the electrothermal relay protective module 3 is electrothermal relay

More specifically, electrothermal relay is arranged before motor module 4, the electric current of motor can be protected, avoid electric current It is excessive to cause the motor feels hot to explode.

Further, the rectification module 5 is transformer, and the output voltage of the rectification module 5 is 24V.

More specifically, passing through transformer for dangerous 380V AC conversion is safe 24V power supply, not only safety, but also energy Suitable for the common 24V control panel in market.

Further, the contact modules 2 include positive contactor 21, reversion contactor 22, rotate forward contactless contactor 23 and reversion contactless contactor 24, the positive contactor 21 is powered so that the motor module 4 rotates forward, and the reversion contacts Device 22 is powered so that the motor module 4 inverts, and the rotating forward contactless contactor 23 controls the positive contactor 21 and switchs, institute It states reversion contactless contactor 24 and controls the switch of reversion contactor 22, the rotating forward contactless contactor 23 and reversion contact Device switch 24 is controlled by the control module 7, and the positive contactor 21 and reversion contactor 22 are normally open contactor.

Further, the control module 7 includes power supply indicator 71, run indicator 72, malfunction indicator lamp 73, failure Relaying 74 and positive and negative rotation relaying 75, the power supply indicator 71, run indicator 72, malfunction indicator lamp 73,74 and of failed trunk Positive and negative rotation relaying 75 is parallel with one another, 23 He of rotating forward contactless contactor of the 75 control contact modules 2 of positive and negative rotation relaying Invert the disconnection and closure of contactless contactor 24.

When the circuit is energized, the contact modules 2 are controlled by positive and negative rotation relaying 75, to control the electricity The positive and negative rotation of machine module 4, detailed process are as follows: when needing to rotate forward, the rotating forward relay power of the positive and negative rotation relaying 75, So that the coil for rotating forward relay is powered and generates electromagnetic force, so that the closure of rotating forward contactless contactor 23 is attracted to be powered, So that the coil generating electromagnetic power for rotating forward contact-making switch 23, the electromagnetic attracting force for rotating forward contact-making switch 23 is in The positive contactor 21 of normally open is closed, so that the positive contactor 21 is powered, so that the motor Module 4, which is powered, to be rotated forward；On the contrary, when needing to invert, the reversion relay power of the reversion relaying 75, so that instead The coil for turning relay, which is powered, generates electromagnetic force, to attract the closure of reversion contactless contactor 24 to be powered, so that institute The coil generating electromagnetic power of reversion contact-making switch 24 is stated, the electromagnetic attracting force of the reversion contact-making switch 24 is in normally open The reversion contactor 22 is closed, so that the reversion contactor 22 is powered, so that the motor module 4 is powered Reversion.

Further, also connect between the secondary coil anode and the contact of the phase sequence module 6 of the rectification module 5 There is a fuse 51, the fuse 51 is 24V fuse.

More specifically, a 24V fuse is connected in 5 output end of rectification module, so as to avoid voltage excessive Damage is generated to the control module 7.

For those skilled in the art, it can make other each according to the above description of the technical scheme and ideas Kind is corresponding to be changed and deforms, and all these change and deform the guarantor that all should belong to the utility model claims Within the scope of shield.

Claims

1. a kind of circuit for controlling motor with phase sequence, it is characterised in that: including power supply output module (1), contact modules (2), electrothermal relay protective module (3), motor module (4), rectification module (5), phase sequence module (6) and control module (7), The input terminal of the contact modules (2), rectification module (5) and phase sequence module (6) is connected in parallel with each other the rear and electricity Source output module (1) connection, the contact modules (2), electrothermal relay protective module (3) and motor module (4) are connected in series, The phase sequence module (6) is phase sequence relay, and the phase sequence module (6) has there are three access point and two contacts, The phase sequence module (6) is the phase sequence relay of normally open, and the rectification module (5) is transformer, the rectification mould The secondary coil anode of block (5) is connect with one of contact of the phase sequence module (6), the phase sequence module (6) another contact is connect with the control module (7), the secondary coil cathode of the rectification module (5) and the control Module (7) connection.

2. a kind of circuit for controlling motor with phase sequence as described in claim 1, it is characterised in that: the power supply exports mould Block (1) includes power module (11), on-load switch module (12) and breaker module (13), and the power module (11) includes one A 380V three-phase alternating-current supply, three firewires, a zero curve and a ground wire, three firewires pass through the on-load switch mould Block (12) accesses the breaker module (13) afterwards, and three firewires and zero curve pass through after the breaker module (13) from institute Breaker module (13) output is stated, the ground wire directly connects at the power module (11).

3. a kind of circuit for controlling motor with phase sequence as described in claim 1, it is characterised in that: the contact modules (2) include positive contactor (21), reversion contactor (22), rotate forward contactless contactor (23) and reversion contactless contactor (24), The positive contactor (21) is powered so that the motor module (4) rotates forward, and the reversion contactor (22) is powered so that described Motor module (4) reversion, rotating forward contactless contactor (23) control positive contactor (21) switch, the reversion contact Device switchs (24) and controls reversion contactor (22) switch, and the rotating forward contactless contactor (23) and the reversion contactor are opened It closes (24) to be controlled by the control module (7), the positive contactor (21) and reversion contactor (22) are normally open contactor.

4. a kind of circuit for controlling motor with phase sequence as claimed in claim 2, it is characterised in that: the breaker module It (13) is low-voltage circuit breaker.

5. a kind of circuit for controlling motor with phase sequence as described in claim 1, it is characterised in that: the electrothermal relay is protected Protecting module (3) is electrothermal relay.

6. a kind of circuit for controlling motor with phase sequence as described in claim 1, it is characterised in that: the rectification module It (5) is transformer, the output voltage of the rectification module (5) is 24V.

7. a kind of circuit for controlling motor with phase sequence as claimed in claim 3, it is characterised in that: the control module It (7) include power supply indicator (71), run indicator (72), malfunction indicator lamp (73), failed trunk (74) and positive and negative rotation relaying (75), in the power supply indicator (71), run indicator (72), malfunction indicator lamp (73), failed trunk (74) and positive and negative rotation It is parallel with one another after (75), positive and negative rotation relaying (75) control the contact modules (2) rotating forward contactless contactor (23) and Invert the disconnection and closure of contactless contactor (24).

8. a kind of circuit for controlling motor with phase sequence as described in claim 1, it is characterised in that: the rectification module (5) fuse (51), the insurance are also connected between the contact of secondary coil anode and the phase sequence module (6) Silk (51) is 24V fuse.