CN205921368U - Adopt relay to carry out three -phase rolling door machine circuit of open -phase protection - Google Patents
Adopt relay to carry out three -phase rolling door machine circuit of open -phase protection Download PDFInfo
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- CN205921368U CN205921368U CN201620844967.2U CN201620844967U CN205921368U CN 205921368 U CN205921368 U CN 205921368U CN 201620844967 U CN201620844967 U CN 201620844967U CN 205921368 U CN205921368 U CN 205921368U
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- relay
- contact
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- descending
- open
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Abstract
The utility model relates to an adopt relay to carry out three -phase rolling door machine circuit of open -phase protection, including major loop and control circuit, the major loop is including going upward relay, down relay, three -phase AC rolling door machine motor and three phase current, the major loop still is equipped with first scarce looks protect relay and the second lacks looks protect relay, control circuit is including going upward control circuit and down control circuit. The utility model discloses a relay carries out effective open -phase protection, job stabilization to the rolling door machine motor.
Description
Technical field
This utility model is related to rolling screen door technical field, more particularly, to a kind of three-phase carrying out open-phase protection using relay
Door roller circuit.
Background technology
Electric rolling door is widely applied in places such as StoreFront, garages, and electric rolling door lifting is driven by door roller,
Door roller is typically made up of parts such as motor, reduction box, brake gear, controller, stop, operation buttons.Existing roller shutter
A door part is driven by three-phase alternating current door roller, typically carries out switching on and shutting down using air switch or catalyst, in use,
Usually cause certain one-phase open circuit in three-phase line due to reasons such as supply line's loose contacts, cause three-phase alternating current machine burning
Ruin, in prior art, frequently with installing open phase protector in supply line, open-phase protection is carried out to three phase electric machine, but phase shortage is protected
Shield device adopts the electronic original parts such as capacitance-resistance, because the electronic components such as capacitance-resistance are after working after a while, part characteristic meeting mostly
Change, particularly easily affected by the extraneous such as factor such as thunder and lightning, humidity, lead to job insecurity, and once break down not
Easy-maintaining.
Utility model content
This utility model overcomes the deficiencies in the prior art, there is provided one kind is entered to three-phase door roller motor using relay
The effective open-phase protection of row, the circuit of working stability.
This utility model is achieved through the following technical solutions:
A kind of three-phase door roller circuit carrying out open-phase protection using relay, including major loop and control circuit；Described
Major loop includes up relay, descending relay, three-phase alternating current door roller motor and three phase mains；Described up relay,
Descending relay is equipped with four transfer contacts；The movable contact of described up relay wherein three transfer contacts connects three respectively
The l1 phase of phase power supply, l2 phase and l3 phase；The normally opened contact of the first transfer contact of described up relay, the second transfer contact
Normally-closed contact, the normally opened contact of the second transfer contact, the normally opened contact of the 3rd transfer contact, the normally-closed contact of the 3rd transfer contact
Connect the normally opened contact of the first transfer contact of descending relay respectively, the normally opened contact of the second transfer contact, the 3rd conversion are touched
The normally-closed contact of point, the normally-closed contact of the second transfer contact, the normally opened contact of the 3rd transfer contact；The of described descending relay
The movable contact of one transfer contact, normally opened contact connect the l1 phase of power supply and the head end of machine winding a phase respectively；
Described major loop is additionally provided with the first open-phase protection relay and the second open-phase protection relay；Described first phase shortage is protected
Shield relay and the second open-phase protection relay are equipped with three normally opened contacts；Described first open-phase protection relay first touches
Point, one end of the second contact connect the second transfer contact of descending relay, the movable contact of the 3rd transfer contact, the other end respectively
Connect second open-phase protection relay the first contact, one end of the second contact respectively；Described second open-phase protection relay first
Contact, the other end of the second contact connect machine winding b phase, the head end of c phase respectively；Described first open-phase protection relay coil
One end connect this relay the first contact input, the other end connect zero line；Described second open-phase protection relay line
One end of circle connects the input of this relay second contact, and the other end connects zero line；
Described control circuit includes upload control loop and descending control loop；
The power supply l1 phase that described upload control loop includes being sequentially connected in series, the normally closed of descending relay first transfer contact are touched
Point, up relay coil, normally opened up button, normally closed stop button and zero line；The end of described up relay coil, on
The normally opened contact of row relay the 4th transfer contact, the 3rd contact of the first open-phase protection relay, the second open-phase protection relay
3rd contact of device, normally closed stop button and zero line are sequentially connected in series up button parallel connection latching circuit；
The power supply l1 phase that described descending control loop includes being sequentially connected in series, the normally closed of up relay first transfer contact are touched
Point, descending relay coil, normally opened descending button, normally closed stop button and zero line；The end of described descending relay coil, under
The normally opened contact of row relay the 4th transfer contact, the 3rd contact of the first open-phase protection relay, the second open-phase protection relay
3rd contact of device, normally closed stop button and zero line are sequentially connected in series descending button parallel connection latching circuit.
Operation principle of the present utility model is, when will open rolling screen door, presses up button, upload control loop is connected,
Up relay energized action, the normally-closed contact of up relay disconnects, normally opened contact closure；The normally opened contact of up relay
After closure, the first open-phase protection relay energized action, its normally opened contact closes, the second open-phase protection relay energized action,
Its normally opened contact closes, and major loop is connected, and a phase of motor, b phase are respectively turned on the l1 phase of power supply, l3 phase and l2 phase with c phase,
Motor rotates forward and drives rolling screen door up；Now up button parallel connection latching circuit is also connected, and unclamps up button and does not interfere with electricity
Machine runs；When to be shut down, press normally closed stop button, up button parallel connection latching circuit disconnects, and up relay electric-loss disconnects,
Major loop disconnects, and also dead electricity disconnects for the first open-phase protection relay and the second open-phase protection relay, and motor dead electricity stops operating.
In the same manner, when will close rolling screen door, press descending button, descending control loop is connected, descending relay energized action, descending relay
The normally-closed contact of device disconnects, normally opened contact closure；After the normally opened contact closure of descending relay, the first open-phase protection relay obtains
Electronic work, its normally opened contact closes, the second open-phase protection relay energized action, and its normally opened contact closes, and major loop is connected, electricity
The a phase of machine, b phase are respectively turned on the l1 phase of power supply, l2 phase and l3 phase with c phase, and motor reversal drives rolling screen door descending；This is at present
Row button parallel connection latching circuit is also connected, and unclamps descending button and does not interfere with motor operation；When to be shut down, press normally closed stop by
Button, descending button parallel connection latching circuit disconnects, and descending relay electric-loss disconnects, and major loop disconnects, the first open-phase protection relay
Disconnect with the second open-phase protection relay also dead electricity, motor dead electricity stops operating.
In the technical program, up relay is used for controlled motor rotating forward and opens rolling screen door, and descending relay is used for controlling
Motor reversal closes rolling screen door；The normally-closed contact of the first transfer contact of descending relay and upload control circuit in series, up
The normally-closed contact of the first transfer contact of relay and the series connection of descending control loop, are used for making upload control loop and descending control
Loop interlocks, and prevents misoperation, carries out open-phase protection to motor a phase simultaneously, as long as a phase phase shortage or loose contact, up relay
Device and descending relay all will not actions.4th transfer contact of up relay is used for the self-locking in parallel to up button, under
4th transfer contact of row relay is used for the self-locking in parallel to descending button.First open-phase protection relay and the second phase shortage are protected
Shield relay is respectively used to motor b phase, c phase phase shortage are protected, when motor b phase phase shortage or loose contact, the first phase shortage
Protective relay coil losing electricity, the first open-phase protection relay disconnects cut-out major loop, meanwhile, the first open-phase protection relay
3rd contact disconnects, the up button parallel connection latching circuit of cut-out closure or descending button parallel connection latching circuit, closure up
Relay or descending relay disconnect, and cut off major loop further；When motor c phase phase shortage or loose contact, the second phase shortage is protected
Shield relay coil dead electricity, the second open-phase protection relay disconnects cut-out major loop, meanwhile, the of the second open-phase protection relay
Three contacts disconnect, up button parallel connection latching circuit or descending button parallel connection latching circuit that cut-out closes, and the up of closure continues
Electrical equipment or descending relay disconnect, and cut off major loop further.
Further, it is provided with normally closed up limitation travel switch between described up relay coil and up button, on this
Row limitation travel switch is series in up button parallel connection latching circuit.Arrange up limitation travel switch to be used for making rolling screen door
It is automatically stopped in predetermined position during row, when up limitation travel switch action, normally-closed contact disconnects, and cuts off up button simultaneously
Connection latching circuit, up relay disconnects cut-out major loop, motor stalls.
Further, it is provided with normally closed descending limitation travel switch between described descending relay coil and descending button, under this
Row limitation travel switch is series in descending button parallel connection latching circuit.Arrange descending limitation travel switch to be used for making under rolling screen door
It is automatically stopped in predetermined position during row, when descending limitation travel switch action, normally-closed contact disconnects, cut-out descending button is simultaneously
Connection latching circuit, descending relay disconnects cut-out major loop, motor stalls.
The technical program is relatively specific for the little door roller of power, if the larger door roller of power to be applied to, can
Relay in the technical program is changed into catalyst.
The beneficial effects of the utility model are: adopt up relay and descending relay in major loop, not only can control
The rotating of motor processed moreover it is possible to carry out phase shortage and loose contact protection to motor a；Setting the after the descending relay of major loop
One open-phase protection relay and the second open-phase protection relay, can effectively be carried out to the phase shortage and loose contact of motor b phase and c phase
Protection, protection element does not have electronic component, working stability.
Brief description
Fig. 1 is circuit diagram of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model
Can be easier to be readily appreciated by one skilled in the art with feature, thus make apparent clear and definite to protection domain of the present utility model
Define.
As shown in figure 1, embodiment of the present utility model, including major loop and control circuit；Described major loop includes up
Relay k1, descending relay k2, three-phase alternating current door roller motor m and three phase mains l1, l2, l3；Described up relay k1,
Descending relay k2 is equipped with four transfer contacts；Described up relay wherein three transfer contacts k1-1, k1-2, k1-3's
Movable contact connects l1 phase, l2 phase and the l3 phase of three phase mains respectively；The first transfer contact k1-1's of described up relay k1
Normally opened contact, the normally-closed contact of the second transfer contact k1-2, the normally opened contact of the second transfer contact k1-2, the 3rd transfer contact
The normally opened contact of k1-3, the normally-closed contact of the 3rd transfer contact k1-3 connect first transfer contact of descending relay k2 respectively
The normally opened contact of k2-1, the normally opened contact of the second transfer contact k2-2, the normally-closed contact of the 3rd transfer contact k2-3, the second conversion
The normally-closed contact of contact k2-2, the normally opened contact of the 3rd transfer contact k2-3；K2 first transfer contact of described descending relay
The movable contact of k2-1, normally opened contact connect the l1 phase of power supply and the head end of motor m winding a phase respectively；
Described major loop is additionally provided with the first open-phase protection relay k3 and the second open-phase protection relay k4；Described first lacks
Phase protective relay k3 and the second open-phase protection relay k4 is equipped with three normally opened contacts；Described first open-phase protection relay
The first contact k3-1 of k3, one end of the second contact k3-2 connect respectively the second transfer contact k2-2 of descending relay k2,
The movable contact of three transfer contact k2-3, the other end connect respectively second open-phase protection relay k4 the first contact k4-1, second touch
One end of point k4-2；The first contact k4-1 of described second open-phase protection relay k4, the other end difference of the second contact k4-2
Connect motor m winding b phase, the head end of c phase；One end of described first open-phase protection relay k3 coil connects this relay k3's
The input of the first contact k3-1, the other end connects zero line n；One end of described second open-phase protection relay k4 coil connects this
The input of relay k4 the second contact k4-2, the other end connects zero line n；
Described control circuit includes upload control loop and descending control loop；
Power supply l1 phase that described upload control loop includes being sequentially connected in series, descending relay k2 the first transfer contact k2-1
Normally-closed contact, up relay k1 coil, normally opened up button sb1, normally closed stop button sb3 and zero line n；Described up relay
The end of device k1 coil, the normally opened contact of up relay k1 the 4th transfer contact k1-4, the first open-phase protection relay k3
3rd contact k3-3, the 3rd contact k4-3 of the second open-phase protection relay k4, normally closed stop button sb3 and zero line n go here and there successively
Joint group becomes up button parallel connection latching circuit；
Power supply l1 phase that described descending control loop includes being sequentially connected in series, up relay k1 the first transfer contact k1-1
Normally-closed contact, descending relay k2 coil, normally opened descending button sb2, normally closed stop button sb3 and zero line n；Described descending relay
The end of device k2 coil, the normally opened contact of descending relay k2 the 4th transfer contact k2-4, the first open-phase protection relay k3
3rd contact k3-3, the 3rd contact k4-3 of the second open-phase protection relay k4, normally closed stop button sb3 and zero line n go here and there successively
Joint group becomes descending button parallel connection latching circuit.
The operation principle of the present embodiment is, when will open rolling screen door, presses up button sb1, upload control loop is connected,
Up relay k1 energized action, the normally-closed contact of up relay k1 disconnects, normally opened contact closure；Up relay k1's is normal
After opening the closing of contact, the first open-phase protection relay k3 energized action, its normally opened contact closes, the second open-phase protection relay k4
Energized action, its normally opened contact closes, and major loop is connected, and a phase of motor m, b phase are respectively turned on the l1 phase of power supply, l3 with c phase
Mutually with l2 phase, motor m rotates forward and drives rolling screen door up；Now up button parallel connection latching circuit is also connected, and unclamps up button
Sb1 does not interfere with motor operation；When to be shut down, press normally closed stop button sb3, up button parallel connection latching circuit disconnects, on
Row relay k1 dead electricity disconnects, and major loop disconnects, and the first open-phase protection relay k3 and the second open-phase protection relay k4 also loses
Electrically disconnected, motor m dead electricity stops operating.In the same manner, when will close rolling screen door, press descending button sb2, descending control loop connects
Logical, descending relay k2 energized action, the normally-closed contact of descending relay k2 disconnects, normally opened contact closure；Descending relay k2
Normally opened contact closure after, the first open-phase protection relay k3 energized action, its normally opened contact close, the second open-phase protection relay
Device k4 energized action, its normally opened contact closes, and major loop is connected, and a phase of motor m, b phase are respectively turned on the l1 of power supply with c phase
Phase, l2 phase and l3 phase, motor m reversion drives rolling screen door descending；Now descending button parallel connection latching circuit is also connected, and unclamps descending
Button sb2 does not interfere with motor m and runs；When to be shut down, press normally closed stop button sb3, descending button parallel connection latching circuit breaks
Open, descending relay k2 dead electricity disconnects, major loop disconnects, the first open-phase protection relay k3 and the second open-phase protection relay k4
Also dead electricity disconnects, and motor m dead electricity stops operating.
In the present embodiment, up relay k1 is used for the rotating forward of controlled motor m and opens rolling screen door, and descending relay k2 is used for controlling
Rolling screen door is closed in motor m reversion processed；The normally-closed contact of the first transfer contact k2-1 of descending relay k2 and upload control loop
Series connection, the normally-closed contact of the first transfer contact k1-1 of up relay k1 and the series connection of descending control loop, are used for making up control
Loop processed and the interlocking of descending control loop, prevent misoperation, carry out open-phase protection to motor a phase simultaneously, as long as a phase phase shortage or connect
Touch bad, up relay k1 and descending relay k2 all will not action.The 4th transfer contact k1-4 of up relay k1 uses
In the self-locking in parallel to up button sb1, the 4th transfer contact k2-4 of descending relay k2 is used for descending button sb2 simultaneously
Connection self-locking.First open-phase protection relay k3 and the second open-phase protection relay k4 is respectively used to motor b phase, c phase phase shortage are entered
Row protection, when motor b phase phase shortage or loose contact, the first open-phase protection relay k3 coil losing electricity, the first open-phase protection continues
Electrical equipment k3 disconnects cut-out major loop, and meanwhile, the 3rd contact k3-3 of the first open-phase protection relay k3 disconnects, and it is upper that cut-out closes
Row button parallel connection latching circuit or descending button parallel connection latching circuit, the up relay k1 or descending relay k2 of closure breaks
Open, cut off major loop further；When motor c phase phase shortage or loose contact, the second open-phase protection relay k4 coil losing electricity, the
Two open-phase protection relay k4 disconnect cut-out major loop, and meanwhile, the 3rd contact k4-3 of the second open-phase protection relay k4 disconnects,
The up button parallel connection latching circuit of cut-out closure or descending button parallel connection latching circuit, the up relay k1 or descending of closure
Relay k2 disconnects, and cuts off major loop further.
In the present embodiment, between described up relay k1 coil and up button sb1, it is provided with normally closed up stroke-limit
Switch sq1, this up limitation travel switch sq1 are series in up button parallel connection latching circuit.Arrange up stroke-limit to open
Close sq1 to be used for being automatically stopped in predetermined position when making rolling screen door up, when up limitation travel switch sq1 action, normally closed
Contact disconnects, cut-out up button parallel connection latching circuit, and up relay k1 disconnects cut-out major loop, and motor m stops operating.
In the present embodiment, between described descending relay k2 coil and descending button sb2, it is provided with normally closed descending stroke-limit
Switch sq2, this descending limitation travel switch sq2 are series in descending button parallel connection latching circuit.Arrange descending stroke-limit to open
Close sq2 to be used for being automatically stopped in predetermined position when making rolling screen door descending, when descending limitation travel switch sq2 action, normally closed
Contact disconnects, cut-out descending button parallel connection latching circuit, and descending relay disconnects cut-out major loop, and motor m stops operating.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model does not limit to
In this, any change or replacement expected without creative work, all should cover within protection domain of the present utility model.
Therefore, protection domain of the present utility model should be defined by the protection domain that claims are limited.
Claims (3)
1. a kind of three-phase door roller circuit carrying out open-phase protection using relay, including major loop and control circuit；Described master
Loop includes up relay, descending relay, three-phase alternating current door roller motor and three phase mains；It is characterized in that: on described
Row relay, descending relay are equipped with four transfer contacts；The movable contact of described up relay wherein three transfer contacts
Connect l1 phase, l2 phase and the l3 phase of three phase mains respectively；The normally opened contact of the first transfer contact of described up relay, second
The normally-closed contact of transfer contact, the normally opened contact of the second transfer contact, the normally opened contact of the 3rd transfer contact, the 3rd transfer contact
Normally-closed contact connect respectively the normally opened contact of the first transfer contact of descending relay, the normally opened contact of the second transfer contact,
The normally-closed contact of the 3rd transfer contact, the normally-closed contact of the second transfer contact, the normally opened contact of the 3rd transfer contact；Described descending
The movable contact of the first transfer contact of relay, normally opened contact connect the l1 phase of power supply and the head end of machine winding a phase respectively；
Described major loop is additionally provided with the first open-phase protection relay and the second open-phase protection relay；Described first open-phase protection continues
Electrical equipment and the second open-phase protection relay are equipped with three normally opened contacts；Described first open-phase protection relay the first contact,
One end of two contacts connects the second transfer contact of descending relay, the movable contact of the 3rd transfer contact respectively, and the other end is respectively
Connect second open-phase protection relay the first contact, one end of the second contact；Described second open-phase protection relay the first contact,
The other end of the second contact connects machine winding b phase, the head end of c phase respectively；The one of described first open-phase protection relay coil
End connects the input of first contact of this relay, and the other end connects zero line；Described second open-phase protection relay coil
One end connects the input of this relay second contact, and the other end connects zero line；
Described control circuit includes upload control loop and descending control loop；
Power supply l1 phase that described upload control loop includes being sequentially connected in series, the normally-closed contact of descending relay first transfer contact,
Up relay coil, normally opened up button, normally closed stop button and zero line；The end of described up relay coil, up
The normally opened contact of relay the 4th transfer contact, the 3rd contact of the first open-phase protection relay, the second open-phase protection relay
The 3rd contact, normally closed stop button and zero line be sequentially connected in series up button parallel connection latching circuit；
Power supply l1 phase that described descending control loop includes being sequentially connected in series, the normally-closed contact of up relay first transfer contact,
Descending relay coil, normally opened descending button, normally closed stop button and zero line；The end of described descending relay coil, descending
The normally opened contact of relay the 4th transfer contact, the 3rd contact of the first open-phase protection relay, the second open-phase protection relay
The 3rd contact, normally closed stop button and zero line be sequentially connected in series descending button parallel connection latching circuit.
2. a kind of three-phase door roller circuit carrying out open-phase protection using relay according to claim 1, its feature exists
In: it is provided with normally closed up limitation travel switch between described up relay coil and up button, this up stroke-limit is opened
Pass is series in up button parallel connection latching circuit.
3. a kind of three-phase door roller circuit carrying out open-phase protection using relay according to claim 1, its feature exists
In: it is provided with normally closed descending limitation travel switch between described descending relay coil and descending button, this descending stroke-limit is opened
Pass is series in descending button parallel connection latching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620844967.2U CN205921368U (en) | 2016-08-08 | 2016-08-08 | Adopt relay to carry out three -phase rolling door machine circuit of open -phase protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620844967.2U CN205921368U (en) | 2016-08-08 | 2016-08-08 | Adopt relay to carry out three -phase rolling door machine circuit of open -phase protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205921368U true CN205921368U (en) | 2017-02-01 |
Family
ID=57871949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620844967.2U Expired - Fee Related CN205921368U (en) | 2016-08-08 | 2016-08-08 | Adopt relay to carry out three -phase rolling door machine circuit of open -phase protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205921368U (en) |
-
2016
- 2016-08-08 CN CN201620844967.2U patent/CN205921368U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20210808 |