CN207719800U - AC three-phase motor open phase protector and control circuit - Google Patents
AC three-phase motor open phase protector and control circuit Download PDFInfo
- Publication number
- CN207719800U CN207719800U CN201721751250.4U CN201721751250U CN207719800U CN 207719800 U CN207719800 U CN 207719800U CN 201721751250 U CN201721751250 U CN 201721751250U CN 207719800 U CN207719800 U CN 207719800U
- Authority
- CN
- China
- Prior art keywords
- pedestal
- movable contact
- control circuit
- contactor
- phase
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 230000001012 protector Effects 0.000 title claims abstract description 14
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229920001342 Bakelite® Polymers 0.000 claims abstract description 5
- 239000004637 bakelite Substances 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 230000004913 activation Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
Landscapes
- Stopping Of Electric Motors (AREA)
Abstract
The utility model discloses a kind of AC three-phase motor open phase protector and control circuits, belong to AC three-phase motor control device field.Its contribution is：One bakelite rectangular seat for having movable contact stand, oneShape bakelite movable contact frame, an attracting device coil are mounted on pedestal together in the middle part of one " m " shape lower core.One " m " shape upper core is mounted in movable contact frame middle and lower part, and one, movable contact frame is on pedestal, and other end fills moving contact, spring and positioning screw, and two fixed contacts are on pedestal.The utility model is made of pedestal, movable contact frame, attracting device coil, iron core, moving contact, fixed contact, spring, positioning screw etc..It forms mutual control circuit with A.C. contactor, and when power phase shortage, A.C. contactor can disconnect automatically, keep motor without damage.
Description
Technical field
The utility model is related to a kind of AC three-phase motor control devices.
Background technology
AC three-phase motor open phase protector and control circuit are a kind of improvement to ac contactor control circuit, it
The control circuit mutually controlled is formed with ac contactor control circuit, three phase mains fully enters control circuit.
Now has general middle low power AC three-phase motor, and with A.C. contactor, equipment, its control circuit only have in order to control
Two-phase power supply enters control circuit, and when not entering into a phase power phase shortage of control circuit, A.C. contactor cannot disconnect electricity
Source causes motor to be damaged because of phase shortage.
Utility model content
Problem to be solved in the utility model is to provide a kind of AC three-phase motor open phase protector and control circuit, belongs to
In AC three-phase motor control device field.Its technical contribution is：One bakelite rectangle for having movable contact stand
Pedestal, one, " П " shape movable contact frame are on pedestal, and other end fills moving contact, spring and positioning screw, and two fixed
For contact on pedestal, " m " shape upper core is mounted in movable contact frame middle and lower part, and an attracting device coil falls mounted in one
It is mounted on pedestal together in the middle part of " m " shape iron core.The control circuit of open phase protector and A.C. contactor forms the control mutually controlled
Circuit processed, three phase mains fully enter control circuit, the contactor energy auto power off when contactor power phase shortage, protection electricity
Motivation is without damage.
To understand rhymed formula above-mentioned technical problem, the utility model AC three-phase motor open phase protector and control circuit composition
Component include：Pedestal, movable contact frame, attracting device coil, iron core, moving contact, fixed contact, spring, positioning screw etc..It is described
Pedestal electricity consumption it is wooden at a rectangle, pedestal top is formed with movable contact stand, attracting device lower core seat." П " shape bakelite
On pedestal, coil is mounted on pedestal one, movable contact frame together in the middle part of " m " shape attracting device lower core." m " shape
Attracting device upper core is mounted in the middle lower portion of movable contact frame.Bullet of the top of spring on the outside of movable contact frame movable contact block
Under spring abutment, the positioning screw that the top and the bottom of spring pass through among spring is mounted in pedestal top.One copper plate shaped moving contact,
Mounted in the movable contact block lower part of movable contact frame.Two copper bent plate shape fixed contacts, respectively symmetrically be mounted in pedestal on and moving contact
It is corresponding.The circuit of the utility model AC three-phase motor open phase protector is：Attracting device coil one connects zero curve, other end
The lower connector for connecing control circuit on the left of A.C. contactor, connects power supply A phases, a fixed contact connects control button and stops through upper connection
Outer end connector is only switched, another fixed contact connects control circuit lower connector on the right side of A.C. contactor.Ac contactor coil one
Head connects power supply B phases, and coil other end connects control circuit upper connection on the right side of A.C. contactor and terminated with outside push-button activation switch
Head connects, and end connector connects power supply C phases in the startup of button switch and shutdown switch, and three phase mains fully enters control circuit.
With reference to the accompanying drawings of the specification the utility model is made to be described in detail into one with embodiment.
Description of the drawings
Fig. 1, it is that the utility model one embodiment keeps flat front cross-sectional view.
Fig. 2, it is Fig. 1 side cutaway views.
Fig. 3, it is AC three-phase motor open phase protector and control circuit and the mutual electric operation control circuit figure of A.C. contactor.
In figure：1 pedestal, 2 movable contact framves, 3 attracting device lower cores, 4 attracting device coils, 5 attracting device upper cores, 6 springs,
7 moving contacts, 8 fixed contacts, 9 positioning screws.The left control circuit of E A.C. contactors, the right control circuit of F A.C. contactors, K1Button
Starting switch outer end connector, K2Button shutdown switch outer end connector, K3Button starts and shutdown switch inner end jointing.
Specific implementation mode
As shown in Figure 1, Figure 2, Figure 3 shows：The component of the utility model AC three-phase motor open phase protector includes：1 pedestal,
2 movable contact framves, 3 attracting device lower cores, 4 attracting device coils, 5 attracting device upper cores, 6 springs, 7 moving contacts, 8 fixed contacts, 9
Positioning screw etc..The utility model AC three-phase motor open phase protector and control circuit it is characterized in that：Open phase protector
1 electricity consumption of pedestal is wooden at a rectangle, and 1 top of pedestal is formed with 2, movable contact frame, attracting device lower core 3, " П " shape electricity
Woodwork moving contact frame 2 one is on pedestal.Attracting device coil 4 is mounted in bottom together mounted in 3 middle part of " m " shape attracting device lower core
On seat 1, " m " shape upper core 5 is mounted in the middle lower portion of movable contact frame, and the top of spring 6 is mounted in 2 moving contact of movable contact frame
Under 6, the spring in 7 outsides, the positioning screw 9 that the top and the bottom of spring 6 pass through among spring is mounted in 1 top of pedestal, a copper
The plate shaped moving contact 7 of matter is mounted in 7 lower parts of moving contact of movable contact frame 2, and two copper bent plate shape fixed contacts 8 respectively symmetrically fill
On pedestal 1 and moving contact 7 is corresponding, its connection circuit is：Attracting device coil 4 one connects zero curve, and other end connects exchange and connects
Control circuit E lower connectors on the left of tentaculum, connect power supply A phases, fixed contact 8 one connects outside control button shutdown switch through upper connection
End connector K2, another connects control circuit F lower connectors on the right side of A.C. contactor, and ac contactor coil one connects power supply B phases,
Other end connect on the right side of A.C. contactor the upper connection of circuit F processed and with end connector K outside push-button activation switch1Connection, button are opened
The startup of pass and the inner end connector lug K of shutdown switch3Power supply C phases are connect, three phase mains fully enters control circuit.
Claims (1)
1. a kind of AC three-phase motor open phase protector and control circuit, it is characterized in that：Pedestal (1) electricity consumption of open phase protector
It is wooden at a rectangle, pedestal (1) top is formed with movable contact frame (2) seat, attracting device lower core (3) seat, " ∏ " shape bakelite
On pedestal, attracting device coil (4) fills (2) one, movable contact frame together in the middle part of " m " shape attracting device lower core (3)
On pedestal (1), " m " shape upper core (5) is mounted in the middle lower portion of movable contact frame (2), and the top of spring (6) is touched mounted in activity
Under spring (6) seat on the outside of head frame (2) moving contact (7) seat, the top and the bottom of spring (6) pass through the positioning screw among spring
(9) it is mounted in pedestal (1) top, a copper plate shaped moving contact (7) is mounted in moving contact (7) seat lower part of movable contact frame (2),
Two copper bent plate shape fixed contacts (8) are respectively symmetrically mounted on pedestal (1) and moving contact (7) is corresponding, its connection circuit
It is：Attracting device coil (4) one connects zero curve, and other end connects control circuit E lower connectors on the left of A.C. contactor, through upper connection
Power supply A phases are connect, fixed contact (8) one meets the outer end connector K2 of control button shutdown switch, another connects control on the right side of A.C. contactor
Circuit F lower connectors processed, ac contactor coil one connect power supply B phases, and other end meets control circuit F on the right side of A.C. contactor
Upper connection is simultaneously connect with end connector K1 outside push-button activation switch, the startup of button switch and the inner end connector lug K3 of shutdown switch
Power supply C phases are connect, three phase mains fully enters control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721751250.4U CN207719800U (en) | 2017-11-30 | 2017-11-30 | AC three-phase motor open phase protector and control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721751250.4U CN207719800U (en) | 2017-11-30 | 2017-11-30 | AC three-phase motor open phase protector and control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207719800U true CN207719800U (en) | 2018-08-10 |
Family
ID=63055990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721751250.4U Expired - Fee Related CN207719800U (en) | 2017-11-30 | 2017-11-30 | AC three-phase motor open phase protector and control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207719800U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861173A (en) * | 2017-11-30 | 2019-06-07 | 刘成福 | AC three-phase motor phase loss protector |
| CN111416327A (en) * | 2019-01-06 | 2020-07-14 | 刘成福 | Phase loss protector and control circuit of AC three-phase motor |
-
2017
- 2017-11-30 CN CN201721751250.4U patent/CN207719800U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861173A (en) * | 2017-11-30 | 2019-06-07 | 刘成福 | AC three-phase motor phase loss protector |
| CN111416327A (en) * | 2019-01-06 | 2020-07-14 | 刘成福 | Phase loss protector and control circuit of AC three-phase motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180810 Termination date: 20201130 |