CN207732676U - A kind of speed regualtion of AC motor device - Google Patents
A kind of speed regualtion of AC motor device Download PDFInfo
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- CN207732676U CN207732676U CN201820010666.9U CN201820010666U CN207732676U CN 207732676 U CN207732676 U CN 207732676U CN 201820010666 U CN201820010666 U CN 201820010666U CN 207732676 U CN207732676 U CN 207732676U
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Abstract
The utility model discloses a kind of speed regualtion of AC motor devices, including：Bridge heap,First,Second,3rd resistor R1,R2,R3,Capacitance C,Silicon-controlled VS,Transistor Q,Voltage-stabiliser tube DW,One output end of bridge heap one end with first resistor R1 respectively,The anode of silicon-controlled VS connects,The other end of first resistor R1 one end with second resistance R2 respectively,A fixed end of rheostat Rw,The cathode of voltage-stabiliser tube DW connects,The other end of second resistance R2 is connect with the source electrode of transistor Q,The control terminal with silicon-controlled VS respectively that drains of transistor Q,One end of 3rd resistor R3 connects,Another fixed end of rheostat Rw is connect with one end of the capacitance C,The moved end of rheostat Rw is connect with the grid of transistor Q,Another output end of bridge heap cathode with silicon-controlled VS respectively,The other end of 3rd resistor R3,The other end of capacitance C,The anode of voltage-stabiliser tube DW connects.The simple in structure, low manufacture cost can be widely used for the adjusting of the alternating current generator speed of low cost.
Description
Technical field
The utility model is related to machine governor technical field, more particularly to a kind of speed regualtion of AC motor device.
Background technology
The speed governing of existing speed regualtion of AC motor device generally uses chip to export PWM wave to change silicon-controlled conducting
The stepless time adjustment of alternating current generator is realized at angle, and still, this governor structure is complicated, and cost of manufacture is high.
Utility model content
The utility model solve the technical issues of be：Existing speed regualtion of AC motor device is complicated, of high cost.
The solution that the utility model solves its technical problem is：A kind of speed regualtion of AC motor device, including：Bridge heap,
One, second, third resistance R1, R2, R3, capacitance C, silicon-controlled VS, transistor Q, voltage-stabiliser tube DW, an output end point for the bridge heap
Do not connect with the anode of one end of the first resistor R1, silicon-controlled VS, the other end of the first resistor R1 respectively with it is described
One end of second resistance R2, a fixed end of rheostat Rw, voltage-stabiliser tube DW cathode connection, the other end of the second resistance R2 with
The source electrode of the transistor Q connects, the drain electrode of the transistor Q respectively with the control terminal of the silicon-controlled VS, 3rd resistor R3
One end connection, another fixed end of the rheostat Rw connect with one end of the capacitance C, the moved end of the rheostat Rw and institute
State the grid connection of transistor Q, another output end of the bridge heap respectively with the cathode of the silicon-controlled VS, 3rd resistor R3
The anode connection of the other end, the other end of capacitance C, voltage-stabiliser tube DW.
Further, the transistor Q is metal-oxide-semiconductor.
Further, the model KBU808 of the bridge heap.
The utility model has the beneficial effects that：Using transistor Q, 3rd resistor R3, capacitance C, rheostat Rw to adjust
The angle of flow for stating silicon-controlled VS, to realize that the speed of alternating current generator M is adjusted, which can use extensively
In the adjusting of the alternating current generator speed of low cost.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His design scheme and attached drawing.
Fig. 1 is the circuit connection diagram of speed regualtion of AC motor device.
Specific implementation mode
The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
The other embodiment that art personnel are obtained without creative efforts belongs to the model of the utility model protection
It encloses.In addition, all connection/connection relations being previously mentioned in text, not singly refer to component and directly connect, and referring to can be according to specific reality
Situation is applied, by adding or reducing couple auxiliary, to form more preferably coupling structure.Each technology in the invention is special
Sign, can be with combination of interactions under the premise of not conflicting conflict.
Embodiment 1, with reference to figure 1, a kind of speed regualtion of AC motor device, including：Bridge heap 1, the first, second, third resistance R1,
R2, R3, capacitance C, silicon-controlled VS, transistor Q, voltage-stabiliser tube DW, an output end of the bridge heap 1 respectively with the first resistor R1
One end, silicon-controlled VS anode connection, the other end of the first resistor R1 respectively with one end of the second resistance R2, become
A fixed end of device Rw, the cathode connection of voltage-stabiliser tube DW are hindered, the other end of the second resistance R2 and the source electrode of the transistor Q connect
It connects, the drain electrode of the transistor Q is connect with one end of the control terminal of the silicon-controlled VS, 3rd resistor R3 respectively, the variable resistance
Another fixed end of device Rw is connect with one end of the capacitance C, and the moved end of the rheostat Rw and the grid of the transistor Q connect
Connect, another output end of the bridge heap 1 respectively with the cathode of the silicon-controlled VS, the other end of 3rd resistor R3, capacitance C it is another
The anode connection of one end, voltage-stabiliser tube DW.
When the speed regualtion of AC motor device works, the alternating current concatenates with alternating current generator M and is linked into the bridge heap 1
In input terminal.When needing speed governing, the moved end of the mobile rheostat Rw, the moved end obtains on capacitance C and rheostat Rw
The conducting voltage of the transistor Q, the conducting voltage are applied on the grid of the transistor Q, source-leakage on the transistor Q
The function of current generates voltage on 3rd resistor R3, and in the control terminal of the silicon-controlled VS, and voltage adjustment is described silicon-controlled
The angle of flow of VS to control the silicon-controlled VS conducting electric currents, and then controls the speed of alternating current generator M.
The angle of flow of the silicon-controlled VS is adjusted using transistor Q, 3rd resistor R3, capacitance C, rheostat Rw, to
Realize that the speed of alternating current generator M is adjusted, which can be widely used for the alternating current generator speed of low cost
Adjusting.
As an optimization, the transistor Q is metal-oxide-semiconductor, the model KBU808 of the bridge heap 1.
The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention
Type or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (3)
1. a kind of speed regualtion of AC motor device, which is characterized in that including：Bridge heap (1), first, second, third resistance R1, R2, R3,
Capacitance C, silicon-controlled VS, transistor Q, voltage-stabiliser tube DW, an output end of the bridge heap (1) respectively with the first resistor R1 one
The anode connection at end, silicon-controlled VS, the other end of the first resistor R1 respectively with one end of the second resistance R2, rheostat
A fixed end of Rw, the cathode connection of voltage-stabiliser tube DW, the other end of the second resistance R2 are connect with the source electrode of the transistor Q,
The drain electrode of the transistor Q is connect with one end of the control terminal of the silicon-controlled VS, 3rd resistor R3 respectively, the rheostat Rw
Another fixed end connect with one end of the capacitance C, the moved end of the rheostat Rw is connect with the grid of the transistor Q, institute
State another output end of bridge heap (1) respectively with the cathode of the silicon-controlled VS, the other end of 3rd resistor R3, capacitance C it is another
The anode connection at end, voltage-stabiliser tube DW.
2. a kind of speed regualtion of AC motor device according to claim 1, it is characterised in that：The transistor Q is metal-oxide-semiconductor.
3. a kind of speed regualtion of AC motor device according to claim 1 or 2, it is characterised in that：The model of the bridge heap (1)
KBU808。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820010666.9U CN207732676U (en) | 2018-01-03 | 2018-01-03 | A kind of speed regualtion of AC motor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820010666.9U CN207732676U (en) | 2018-01-03 | 2018-01-03 | A kind of speed regualtion of AC motor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207732676U true CN207732676U (en) | 2018-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820010666.9U Active CN207732676U (en) | 2018-01-03 | 2018-01-03 | A kind of speed regualtion of AC motor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207732676U (en) |
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2018
- 2018-01-03 CN CN201820010666.9U patent/CN207732676U/en active Active
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