CN209200964U - A kind of positive and negative rotation module of three-phase motor - Google Patents
A kind of positive and negative rotation module of three-phase motor Download PDFInfo
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- CN209200964U CN209200964U CN201920099270.0U CN201920099270U CN209200964U CN 209200964 U CN209200964 U CN 209200964U CN 201920099270 U CN201920099270 U CN 201920099270U CN 209200964 U CN209200964 U CN 209200964U
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- 239000003990 capacitor Substances 0.000 claims description 35
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 9
- 230000005284 excitation Effects 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000010892 electric spark Methods 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000002679 ablation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The utility model relates to motor control technology field, a kind of particularly positive and negative rotation module of three-phase motor.The utility model discloses a kind of positive and negative rotation modules of three-phase motor, including forward control circuit and reverse turn control circuit, the forward control circuit and reverse turn control circuit include input control circuit and switching circuit, the switching circuit, which is serially connected between the output end of three phase mains and the input terminal of motor to constitute, rotates forward current supply circuit or reversion current supply circuit, the input termination of the input control circuit rotates forward signal or reverse signal, the control signal of the output termination switching circuit of the input control circuit, on-off for driving switch circuit, the input control circuit includes the relay of photoelectrical coupler and mechanical contact-type, output end as input control circuit after the output end of the photoelectrical coupler is connected with the output end of relay.While the utility model has high reliability, there is lower cost.
Description
Technical field
The utility model belongs to motor control technology field, more particularly to a kind of positive and negative rotation module of three-phase motor.
Background technique
The working principle of threephase asynchronous is worked according to electromagnetic induction principle, when stator winding passes through three-phase
Symmetrical alternating current electricity, then generate rotating excitation field, which produces in rotor loop between stator and rotor
Raw induced electromotive force and electric current, the electric current of rotor conductor under the action of rotating excitation field, by power effect and rotate rotor.
The direction of rotor rotation is consistent with the direction of rotating excitation field.Direction by changing rotating excitation field can change the side of motor rotation
To.And to change the direction of rotating excitation field, it need to only exchange any both threads in three power supply lines of three-phase motor.Such as Fig. 1, when
K1 ', K2 ', K3 ' conducting, when K4 ', K5 ' closing, then motor M is rotated forward；When K1 ', K4 ', K5 ' conducting, K2 ', K3 ' closing, then
Motor M reversion.Wherein K1 ' is public phase, can also be directly shorted with conducting wire, not influence function.In any case, do not allow
K2 ' and K5 ' and K3 ' and K4 ' are simultaneously turned on, and otherwise be will lead to phase fault and are damaged.Usually can with electromagnetic relay, connect
Tentaculum, motor positive and inverse module etc. realize the exchange of power supply line, to realize the function of motor positive and inverse.Electromagnetic relay and
The contactor problem slower due to actuation time, causes it to cannot achieve the function of plugging, limits its scope of application.Together
When switching function realized using contact due to its output end, turn-on and turn-off can generate electric spark, and its freedom from vibration
Can be poor, bulk life time is shorter, and reliability is lower.And motor positive and inverse module is (usual using contactless semiconductor switch
It is silicon-controlled) Lai Shixian switching function, usually by 4 or 5 solid-state relays, (each solid-state relay is by optocoupler and controllable
Silicon and some other auxiliary electron component composition) and the circuits such as some other interlocking time delay form, as shown in Figure 2.Therefore its
With electric life height, movement is fast, and the strong feature of anti-vibrating and impact ability is well suited for the control of motor positive and inverse.However due to three
Phase motor is inductive load, it is easy to generate stronger electromagnetic interference.And common solid-state relay, anti-electromagnetic interference capability
It is weaker, when by extraneous stronger electromagnetic interference, it is easy to happen and misleads.If motor positive and inverse module uses common
Solid-state relay is then easy to happen and misleads and damage.Therefore, highly reliable motor positive and inverse module is generally required using anti-electricity
The stronger device of magnetic disturbance ability.And the device that anti-electromagnetic interference capability is strong, price are often a lot of times of conventional device,
Cause holding at high price for highly reliable three-phase positive and negative rotation module.
Summary of the invention
The utility model aim is the positive and negative rotation module for providing a kind of three-phase motor to solve above-mentioned technology
Problem.
To achieve the above object, the technical solution adopted in the utility model are as follows: a kind of positive and negative rotation module of three-phase motor, packet
Forward control circuit and reverse turn control circuit are included, the forward control circuit and reverse turn control circuit include input control circuit
And switching circuit, the switching circuit are serially connected between the output end of three phase mains and the input terminal of motor to constitute to rotate forward and power back
The input termination of road or reversion current supply circuit, the input control circuit rotates forward signal input part or reverse signal input terminal, institute
The control signal for stating the output termination switching circuit of input control circuit, for the on-off of driving switch circuit, the input
Control circuit includes the relay of photoelectrical coupler and mechanical contact-type, the output end of the photoelectrical coupler and relay it is defeated
Output end after outlet series connection as input control circuit.
Further, the switching circuit is constituted using reverse-blocking tetrode thyristor, the output end and relay of the photoelectrical coupler
It connects again with the control electrode of reverse-blocking tetrode thyristor after the output end series connection of device.
Further, the relay is electromagnetic relay.
Further, the relay is the electromagnetic relay of double-pole single-throw (D.P.S.T.).
Further, the forward control circuit and reverse turn control circuit also include dual-delay circuit, the dual-delay
The input termination of circuit rotates forward signal input part or reverse signal input terminal, the first delay output termination of the dual-delay circuit
The input terminal of electromagnetic relay, the input terminal of the second delay output termination photoelectrical coupler of the dual-delay circuit, described the
Delay time of the delay time of one delay output end less than the second delay output end.
Further, dual-delay circuit includes capacitor, the first three terminal regulator, diode and the second three terminal regulator,
First termination of the capacitor rotates forward signal input part or reverse signal input terminal, the second end ground connection of the capacitor, the electricity
Hold first termination the first three terminal regulator input terminal, first three terminal regulator successively with the input of electromagnetic relay
End rotates forward signal input part or reverse signal input terminal circuit in series, the first end forward direction series diode of the capacitor
Connect the input terminal of the second three terminal regulator, second three terminal regulator successively with the input terminal of photoelectrical coupler, positive rotaring signal
Input terminal or reverse signal input terminal circuit in series.
Further, first three terminal regulator and the second three terminal regulator are with model three terminal regulator.
Further, the dual-delay circuit further includes zener diode, the negative terminal series resistance of the zener diode
Connect the first end of capacitor, the positive ending grounding of the zener diode.
It further, further include interlock circuit, the interlock circuit, which connects, is rotating forward signal input part and reverse signal input
Between end.
Further, the interlock circuit includes NPN triode Q1 and Q2, the base stage of the NPN triode Q1 and Q2
It connects respectively and rotates forward signal input part and reverse signal input terminal, the emitter of the NPN triode Q1 and Q2 are grounded, described
The collector of NPN triode Q1 and Q2 distinguish reversed rotaring signal input terminal and rotate forward signal input part.
The advantageous effects of the utility model:
The utility model is connected using relay with the output end of photoelectrical coupler, and common optoelectronic coupler can be used,
While realizing high reliability (anti-high electromagnetic interference, anti-vibrating and impact), the cost of product also greatly reduces.
The utility model is equipped with dual-delay circuit, and in the conducting moment of electromagnetic relay, circuit does not have electric current, will not generate
Electric spark will not have any electric ablation to contact, substantially prolong the service life of electromagnetic relay.
The utility model is equipped with interlock circuit, avoids product that phase fault occurs and damages, and safety and reliability is high.
Detailed description of the invention
Fig. 1 is existing three-phase motor positive and negative rotation control schematic diagram；
Fig. 2 is existing positive and negative rotation module circuit schematic；
Fig. 3 is the circuit diagram of the utility model embodiment one；
Fig. 4 is the circuit diagram of the utility model embodiment two.
Specific embodiment
Now in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment one
As shown in figure 3, a kind of positive and negative rotation module of three-phase motor, including forward control circuit and reverse turn control circuit, institute
It states forward control circuit and reverse turn control circuit includes input control circuit and switching circuit, the switching circuit is serially connected in three
It is constituted between the output end of phase power supply and the input terminal of motor and rotates forward current supply circuit or reversion current supply circuit, this specific embodiment
In, the switching circuit of forward control circuit is serially connected in structure between the output end L1 and L2 of three phase mains and the input terminal U and V of motor
At current supply circuit is rotated forward, the switching circuit of reverse turn control circuit is serially connected in output end L1 and L2 and the input of motor of three phase mains
It holds and constitutes reversion current supply circuit between V and U, switching circuit preferably uses one-way SCR switch to constitute, and physical circuit is detailed in figure
3, it no longer describes in detail, certainly, in other embodiments, switching circuit can also be opened using bi-directional thyristor switch or other semiconductors
It closes to realize, this is that those skilled in the art can realize easily.
The input termination of the input control circuit rotates forward signal input part F+ or reverse signal input terminal R+, that is, rotates forward control
The input control circuit of circuit processed input termination rotate forward signal input part F+, the input control circuit of reverse turn control circuit it is defeated
Enter to terminate reverse signal input terminal R+, the output of the input control circuit terminates the control signal of its corresponding switching circuit
(being the control electrode of one-way SCR switch in this specific implementation), for the on-off of driving switch circuit, the input control electricity
Road includes the relay of photoelectrical coupler and mechanical contact-type, the output end of the photoelectrical coupler and the output end string of relay
It connects as the output end of input control circuit with the control electrode that one-way SCR switchs after connection, the input of the photoelectrical coupler
End and the input termination of relay rotate forward signal input part F+ or reverse signal input terminal R+.
In this specific embodiment, the relay is preferably electromagnetic relay, small in size, at low cost, it is furthermore preferred that described
Relay is the electromagnetic relay of double-pole single-throw (D.P.S.T.), reduces the quantity of electromagnetic relay, further reduces the cost, certainly, other
In embodiment, relay is also possible to the forms relay such as single-pole single-throw(SPST, double-pole double throw, and photoelectrical coupler is selected existing common
Photoelectrical coupler, it is at low cost, the output end of the photoelectrical coupler connect with the output end of electromagnetic relay after again and controllably
The control electrode of transwitch connects to form control loop, and physical circuit is detailed in Fig. 3, this is no longer described in detail.Certainly, in other embodiments
In, relay is also possible to the relay of the other machineries contact such as reed switch relay, this is that those skilled in the art can be with
It realizes, no longer describes in detail easily.
Using the output of relay and the concatenated control mode of the output of common optoelectronic coupler, although electromagnetic relay is anti-
Vibratory impulse ability is poor, in the occasion of high vibration impact, is easy to happen malfunction.But due to its output end and photoelectricity coupling
Clutch series connection, and photoelectrical coupler has extremely strong anti-vibrating and impact ability.Therefore, even if since excessively high vibratory impulse leads to electricity
Magnetic malfunction, but since photoelectrical coupler is still within off state, entire circuit does not have electric current and flows through, it is silicon-controlled will not be because
This misleads；Although common photoelectrical coupler anti-electromagnetic interference capability is poor, in the occasion of high electromagnetic interference, it is easy hair
Raw malfunction.But since its output end is connected with relay, and relay has extremely strong anti-electromagnetic interference capability.Therefore,
Even if since excessively high electromagnetic interference causes photoelectrical coupler to malfunction, but since relay is still within off state, entirely
Circuit does not have electric current and flows through, silicon-controlled therefore to mislead.Realizing high reliability (anti-high electromagnetic interference, antivibration
Dynamic impact) while, the cost of product also greatly reduces.
Further, in this specific embodiment, the forward control circuit and reverse turn control circuit also include dual-delay
The input termination of circuit, the dual-delay circuit rotates forward signal input part F+ or reverse signal input terminal R+, that is, rotates forward control electricity
The input termination of the dual-delay circuit on road rotates forward signal input part F+, and the input terminal of the dual-delay circuit of reverse turn control circuit is reversed
Rotaring signal input terminal R+, the first delay output of the dual-delay circuit terminate the input terminal of its corresponding electromagnetic relay, institute
The the second delay output for stating dual-delay circuit terminates the input terminal of its corresponding photoelectrical coupler, the first delay output end
Delay time of the delay time less than the second delay output end.
When having positive rotaring signal or reverse signal inputs, for a period of time, then conducting is corresponding for first dual-delay circuit delay
Electromagnetic relay is connected corresponding photoelectrical coupler, opens to trigger corresponding one-way SCR then using a period of time
Conducting is closed, motor is realized forward or reverse, since electromagnetic relay is first connected, is connected after photoelectrical coupler, in electromagnetic relay
Conducting moment, circuit does not have electric current, will not generate electric spark, will not have any electric ablation to contact, substantially prolong electricity
The service life of magnetic relay.
After one-way SCR switch conduction, there is no electric currents by control electrode, therefore connects with SCR control pole
Photoelectrical coupler and electromagnetic relay there is no electric currents to flow through after one-way SCR switch conduction, therefore when control signal go
When falling, in electromagnetic relay turn off process, also without any electric current by electromagnetic relay, will not generate electric spark will not be right
There is any electric ablation in contact, substantially prolongs the service life of electromagnetic relay.
In this specific embodiment, the dual-delay circuit of forward control circuit includes capacitor C3, three terminal regulator IC2 (first
Three-terminal voltage-stabilizing), the first termination of diode D7, resistance R7 and three terminal regulator IC1 (the second three terminal regulator), the capacitor C3
Signal input part F+ is rotated forward, the second end ground connection of the capacitor C3, the first termination three terminal regulator IC2's of the capacitor C3 is defeated
Enter end, the three terminal regulator IC2 successively with the input terminal of electromagnetic relay K1, rotate forward signal input part F+ in series time
Road, the first end forward direction series diode D7 of the capacitor C3 connect the input terminal of three terminal regulator IC1, the three terminal regulator
IC1 successively connects with the input terminal of photoelectrical coupler PO2, the input terminal of photoelectrical coupler PO1 and rotating forward signal input part F+
Circuit is constituted, resistance R7 connects between the input terminal and ground of three terminal regulator IC1, and more detailed circuit is detailed in Fig. 3, this is no longer thin
It says.
In this specific embodiment, three terminal regulator IC2 and three terminal regulator IC1 are preferably the three terminal regulator with model,
Convenient for manufacturing and managing, but not limited to this.
In this specific embodiment, the dual-delay circuit of reverse turn control circuit includes capacitor C4, three terminal regulator IC4 (first
Three-terminal voltage-stabilizing), the first termination of diode D8, resistance R8 and three terminal regulator IC3 (the second three terminal regulator), the capacitor C4
The second end of reverse signal input terminal R+, the capacitor C4 are grounded, and the first termination three terminal regulator IC4's of the capacitor C4 is defeated
Enter end, the three terminal regulator IC4 successively with the input terminal of electromagnetic relay K2, reverse signal input terminal R+ in series time
Road, the first end forward direction series diode D8 of the capacitor C4 connect the input terminal of three terminal regulator IC3, the three terminal regulator
IC3 successively connects with the input terminal of photoelectrical coupler PO4, the input terminal of photoelectrical coupler PO3 and reverse signal input terminal R+
Circuit is constituted, resistance R8 connects between the input terminal and ground of three terminal regulator IC3, and more detailed circuit is detailed in Fig. 3, this is no longer thin
It says.
In this specific embodiment, three terminal regulator IC4 and three terminal regulator IC3 are preferably the three terminal regulator with model,
Convenient for manufacturing and managing, but not limited to this.
Further, the dual-delay circuit further includes zener diode, this specific embodiment be zener diode D5 and
The negative terminal series resistance of D6, the zener diode D5 connect the first end of capacitor C3, the positive ending grounding of the zener diode D5,
The negative terminal series resistance of the zener diode D6 connects the first end of capacitor C4, and the positive ending grounding of the zener diode D6 mentions
High voltage stability.
It further, further include interlock circuit, the interlock circuit connects defeated in rotating forward signal input part F+ and reverse signal
Enter to hold between R+.When rotating forward signal input part F+ and reverse signal input terminal R+ while applying control signal, product is closed defeated
Out, avoid product that phase fault occurs and damages.
In this specific embodiment, the interlock circuit includes NPN triode Q1 and Q2, the NPN triode Q1 and Q2's
Base stage connects respectively rotates forward signal input part F+ and reverse signal input terminal R+, and the emitter of the NPN triode Q1 and Q2 connect
The collector of ground, the NPN triode Q1 and Q2 distinguish reversed rotaring signal input terminal R+ and rotate forward signal input part F+, more specifically
Circuit be detailed in Fig. 3, this is no longer described in detail.
Certainly, in other embodiments, interlock circuit can also use existing other interlock circuits, this is this field skill
What art personnel can realize easily, no longer describe in detail.
In this specific embodiment, rotating forward signal input part F+ and reverse signal input terminal R+, also forward direction is serially connected with two poles respectively
Pipe D1 and D2, avoid crosstalk.
The course of work of this specific embodiment is as follows:
When rotating forward signal input part F+ and common GND has positive rotaring signal as defined in application, first prolonged by capacitor C3
When for a period of time, three terminal regulator IC2 conducting simultaneously turns on corresponding electromagnetic relay K1, and a period of time that is then delayed again makes three
End voltage-stablizer IC1 conducting simultaneously turns on corresponding optocoupler PO1 and PO2, at this time with the control electrode string of one-way SCR switch T1-T4
The switch of connection all has been turned on, to trigger one-way SCR switch T1-T4 conducting, motor starts to rotate forward.
When reverse signal input terminal R+ and common GND, which have, applies defined reverse signal, first prolonged by capacitor C4
When for a period of time, three terminal regulator IC4 conducting simultaneously turns on corresponding electromagnetic relay K2, and a period of time that is then delayed again makes three
End voltage-stablizer IC3 conducting simultaneously turns on corresponding optocoupler PO3 and PO4, at this time with the control electrode string of one-way SCR switch T5-T8
The switch of connection all has been turned on, to trigger one-way SCR switch T5-T8 conducting, motor starts to invert.
When rotate forward signal input part F+ and reverse signal input terminal R+ simultaneously apply control signal when, NPN triode Q1 and
Q2 can be simultaneously turned on, and the electric current of buck-boost control signal is realized that positive inverted signal simultaneously closes off output with drawing.
Embodiment two
As shown in figure 4, the present embodiment is that the circuit structure of dual-delay circuit is different from the difference for implementing one, specifically,
In the present embodiment, the dual-delay circuit of forward control circuit includes capacitor C3, three terminal regulator IC2 ' (the first three-terminal voltage-stabilizing), electricity
R7 ' and three terminal regulator IC1 ' (the second three terminal regulator) are hindered, three terminal regulator IC2 ' is the three terminal regulator of 1.25V, three ends
Voltage-stablizer IC1 ' is the three terminal regulator of 2.5V, and the first termination of the capacitor C3 rotates forward signal input part F+, the capacitor C3
Second end ground connection, the capacitor C3 first termination three terminal regulator IC2 ' input terminal, the three terminal regulator IC2 ' according to
The secondary input terminal with electromagnetic relay K1, the rotating forward circuit in series signal input part F+, the first end resistance of the capacitor C3
R7 ' connects the input terminal of three terminal regulator IC1 ', the three terminal regulator IC1 ' successively with the input terminal of photoelectrical coupler PO2, light
The input terminal and the rotating forward circuit in series signal input part F+, more detailed circuit of electric coupler PO1 is detailed in Fig. 4, this is not
It describes in detail again.
In this specific embodiment, the dual-delay circuit of reverse turn control circuit includes capacitor C4, three terminal regulator IC4 ' (first
Three-terminal voltage-stabilizing), three ends that resistance R8 ' and three terminal regulator IC3 ' (the second three terminal regulator), three terminal regulator IC4 ' are 1.25V
Voltage-stablizer, three terminal regulator of the three terminal regulator IC3 ' for 2.5V, the reversed rotaring signal input terminal R+ of the first end of the capacitor C4,
The second end of the capacitor C4 is grounded, the input terminal of the first termination three terminal regulator IC4 ' of the capacitor C4, and three end is steady
Depressor IC4 ' successively with the input terminal of electromagnetic relay K2, the circuit in series reverse signal input terminal R+, the capacitor C4's
First end series resistance R8 ' connects the input terminal of three terminal regulator IC3 ', the three terminal regulator IC3 ' successively with photoelectrical coupler
The input terminal of PO4, the input terminal of photoelectrical coupler PO3 and the circuit in series reverse signal input terminal R+, more detailed electricity
Fig. 4 is detailed on road, this is no longer described in detail.
Above-described embodiment gives the circuit structure of two kinds of dual-delay circuits, certainly, in other embodiments, dual-delay electricity
Road can also use existing other dual-delay circuits, this is that those skilled in the art can realize easily, is no longer described in detail.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (10)
1. a kind of positive and negative rotation module of three-phase motor, including forward control circuit and reverse turn control circuit, it is characterised in that: described
Forward control circuit and reverse turn control circuit include input control circuit and switching circuit, and the switching circuit is serially connected in three-phase
It is constituted between the output end of power supply and the input terminal of motor and rotates forward current supply circuit or reversion current supply circuit, the input control circuit
Input termination rotate forward signal input part or reverse signal input terminal, the output termination switching circuit of the input control circuit
Control signal, for the on-off of driving switch circuit, the input control circuit includes photoelectrical coupler and mechanical contact-type
Relay, output as input control circuit after the output end of the photoelectrical coupler is connected with the output end of relay
End.
2. the positive and negative rotation module of three-phase motor according to claim 1, it is characterised in that: the switching circuit is using controllable
Transwitch constitute, the output end of the photoelectrical coupler connect with the output end of relay after again with the control electrode of reverse-blocking tetrode thyristor
Series connection.
3. the positive and negative rotation module of three-phase motor according to claim 1 or 2, it is characterised in that: the relay is electromagnetism
Relay.
4. the positive and negative rotation module of three-phase motor according to claim 3, it is characterised in that: the relay is double-pole single-throw (D.P.S.T.)
Electromagnetic relay.
5. the positive and negative rotation module of three-phase motor according to claim 3, it is characterised in that: the forward control circuit and anti-
Turn control circuit and also include dual-delay circuit, the input termination of the dual-delay circuit rotates forward signal input part or reverse signal
Input terminal, the input terminal of the first delay output termination electromagnetic relay of the dual-delay circuit, the of the dual-delay circuit
The input terminal of two delay output termination photoelectrical couplers, the delay time of the first delay output end is less than the second delay output
The delay time at end.
6. the positive and negative rotation module of three-phase motor according to claim 5, it is characterised in that: dual-delay circuit include capacitor,
First termination of the first three terminal regulator, diode and the second three terminal regulator, the capacitor rotates forward signal input part or reversion
Signal input part, the second end ground connection of the capacitor, the input terminal of first the first three terminal regulator of termination of the capacitor are described
First three terminal regulator is successively in series with the input terminal of electromagnetic relay, rotating forward signal input part or reverse signal input terminal
Circuit, the first end forward direction series diode of the capacitor connect the input terminal of the second three terminal regulator, second three-terminal voltage-stabilizing
Device successively with the input terminal of photoelectrical coupler, rotate forward signal input part or reverse signal input terminal circuit in series.
7. the positive and negative rotation module of three-phase motor according to claim 6, it is characterised in that: first three terminal regulator and
Second three terminal regulator is with model three terminal regulator.
8. the positive and negative rotation module of three-phase motor according to claim 6, it is characterised in that: the dual-delay circuit further includes
Zener diode, the negative terminal series resistance of the zener diode connect the first end of capacitor, the positive termination of the zener diode
Ground.
9. the positive and negative rotation module of three-phase motor according to claim 6, it is characterised in that: it further include interlock circuit, it is described
Interlock circuit, which connects, to be rotated forward between signal input part and reverse signal input terminal.
10. the positive and negative rotation module of three-phase motor according to claim 9, it is characterised in that: the interlock circuit includes NPN
The base stage of triode Q1 and Q2, the NPN triode Q1 and Q2 connect respectively rotates forward signal input part and reverse signal input terminal, institute
The emitter for stating NPN triode Q1 and Q2 is grounded, and the collector of the NPN triode Q1 and Q2 distinguish reversed rotaring signal input
End and rotating forward signal input part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920099270.0U CN209200964U (en) | 2019-01-22 | 2019-01-22 | A kind of positive and negative rotation module of three-phase motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920099270.0U CN209200964U (en) | 2019-01-22 | 2019-01-22 | A kind of positive and negative rotation module of three-phase motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209200964U true CN209200964U (en) | 2019-08-02 |
Family
ID=67431360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920099270.0U Withdrawn - After Issue CN209200964U (en) | 2019-01-22 | 2019-01-22 | A kind of positive and negative rotation module of three-phase motor |
Country Status (1)
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| CN (1) | CN209200964U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510556A (en) * | 2019-01-22 | 2019-03-22 | 库顿电子科技（厦门）有限公司 | A kind of positive and negative rotation module of three-phase motor |
| CN111508774A (en) * | 2020-04-21 | 2020-08-07 | 介国安 | Capacitor voltage-reducing cascade type multi-path intelligent sub-control contactor |
-
2019
- 2019-01-22 CN CN201920099270.0U patent/CN209200964U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510556A (en) * | 2019-01-22 | 2019-03-22 | 库顿电子科技（厦门）有限公司 | A kind of positive and negative rotation module of three-phase motor |
| CN109510556B (en) * | 2019-01-22 | 2023-12-19 | 库顿电子科技（厦门）有限公司 | Forward and reverse rotation module of three-phase motor |
| CN111508774A (en) * | 2020-04-21 | 2020-08-07 | 介国安 | Capacitor voltage-reducing cascade type multi-path intelligent sub-control contactor |
| CN111508774B (en) * | 2020-04-21 | 2022-11-25 | 介国安 | Capacitor voltage-reducing cascade type multi-path intelligent sub-control contactor |
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