CN208943358U - Flywheel braking circuit structure - Google Patents
Flywheel braking circuit structure Download PDFInfo
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- CN208943358U CN208943358U CN201821627572.2U CN201821627572U CN208943358U CN 208943358 U CN208943358 U CN 208943358U CN 201821627572 U CN201821627572 U CN 201821627572U CN 208943358 U CN208943358 U CN 208943358U
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Abstract
The utility model provides a kind of flywheel braking circuit structure, includes tachometer circuit (1), control circuit (2), braking circuit (3) and three-phase inverter circuitry (4)；Three-phase inverter circuitry (4): three-phase alternating current back-emf is reverse into bus direct current back-emf；Tachometer circuit (1): being connected with three inverter circuits, and bus direct current back-emf is divided into the voltage that tests the speed；Control circuit (2): being connected with tachometer circuit (1), receives the voltage that tests the speed；Braking circuit (3): being connected with control circuit (2), includes MOS switch element.The power of the braking resistor of the requires of the utility model is smaller, and the fever of braking resistor is smaller, highly-safe.
Description
Technical field
The utility model relates to brake fields, field of exercise, and in particular, to a kind of flywheel braking circuit structure,
Especially a kind of flywheel braking circuit structure suitable for body-building system.
Background technique
With the increasingly raising of people's economic level, the pursuit of healthy living is also continuously increased, Household body-building system
Popularity rate is continuously increased.Spinning increases moving loads, the smooth fluctuation of load by flywheel.Common traditional Spinning
Flywheel without electric braking ability.The various frictional resistance that main self rotation by flywheel generates, slow consumption fall its rotation
Rotation energy, this kind of braking method braking time is long, lacks safety.
The flywheel of improved tradition Spinning has electric braking function.Mainly pressed by the braking on Spinning
Button presses stop button by bicyclist to control flywheel braking, though this kind of braking method braking time is short, entire Spinning
Body-building system has impact, jitter phenomenon, it is desirable that braking resistor power it is larger, the fever of braking resistor is larger, lacks certain
Safety.
Utility model content
For the defects in the prior art, the purpose of the utility model is to provide a kind of flywheel braking circuit structures.
According to flywheel braking circuit structure provided by the utility model, comprising tachometer circuit, control circuit, braking circuit with
And three-phase inverter circuitry；
Three-phase inverter circuitry: three-phase alternating current back-emf is reverse into bus direct current back-emf；
Tachometer circuit: being connected with three inverter circuits, and bus direct current back-emf is divided into the voltage that tests the speed；
Control circuit: being connected with tachometer circuit, receives the voltage that tests the speed；
Braking circuit: being connected with control circuit, includes MOS switch element.
Preferably, three inverter circuits include voltage source E3, field-effect tube MOS1, field-effect tube MOS2, field effect
It should pipe MOS3, field-effect tube MOS4, field-effect tube MOS5, field-effect tube MOS6, capacitor C3, capacitor C4 and capacitor C5；
The anode of voltage source E3 is connected to the leakage of the drain electrode of field-effect tube MOS1, one end of capacitor C3, field-effect tube MOS2
Pole, one end of capacitor C4, the drain electrode of field-effect tube MOS3 and capacitor C5 one end, and the anode of voltage source E3 forms VCC and connects
Connect end；
The cathode of voltage source E3 is connected to the source electrode of field-effect tube MOS4, the other end of capacitor C3, field-effect tube MOS5
Source electrode, the other end of capacitor C4, the source electrode of field-effect tube MOS6 and capacitor C5 the other end, and the cathode of voltage source E3 is formed
GND ground terminal；
The source electrode of effect pipe MOS1 and the drain electrode of MOS4 are respectively formed three-phase alternating current back-emf U and are connected end, effect pipe MOS2
Source electrode and the drain electrode of MOS5 be respectively formed three-phase alternating current back-emf V and be connected end, the drain electrode of the source electrode and MOS6 of effect pipe MOS3
Three-phase alternating current back-emf W is respectively formed to be connected end；
The grid of field-effect tube MOS1, the grid of field-effect tube MOS2, the grid of field-effect tube MOS3, field-effect tube MOS4
Grid, field-effect tube MOS5 grid and field-effect tube MOS6 grid it is hanging.
Preferably, the tachometer circuit includes resistance R7, resistance R8, resistance R9 and capacitor C6；
One end of resistance R7 forms the connecting pin VCC；The other end of resistance R7 is respectively connected to one end and the resistance of resistance R8
One end of R9；
The other end of resistance R8 is connected to one end of capacitor C6 and ground connection, and the other end of resistance R9 is connected to the another of capacitor C6
One end and control circuit.
Preferably, MOS switch element includes field-effect tube MOS7, and the braking circuit also includes resistance R1, resistance R2, electricity
Hinder R3, resistance R4, resistance R5, resistance R6, diode D1, diode D2, capacitor C1, capacitor C2, triode Q1, triode Q2 with
And triode Q3；
One end of resistance R1 is connected to the collector of triode Q1 and forms external power supply connecting pin, the other end of resistance R1
It is connected to the base stage of triode Q1 and the collector of triode Q2；
The base stage of triode Q2 is connected to control circuit, and the emitter of triode Q2 is connected to one end of resistance R2, resistance
The other end of R2 forms GND ground terminal；
The emitter of triode Q2 is connected to one end of the anode of diode D1, the base stage of triode Q3 and resistance R4,
The cathode of diode D1 is connected to one end of resistance R3；
The other end of resistance R3 is connected to one end of the collector of triode Q3, one end of resistance R5 and capacitor C1；
The other end of resistance R4 is connected to the source of the emitter of triode Q3, the other end of capacitor C1, field-effect tube MOS7
The cathode of pole, one end of capacitor C2 and voltage source E3；
The other end of resistance R5 is connected to the grid of field-effect tube MOS7；
The drain electrode of field-effect tube MOS7 is connected to the another of one end of resistance R6, the anode of diode D2 and capacitor C2
End；
The other end of resistance R6 is connected to the cathode of diode D2 and the anode of voltage source E3.
Preferably, the resistance R6 forms braking resistor；The control circuit includes MCU or single-chip microcontroller.
Compared with prior art, the utility model have it is following the utility model has the advantages that
1, the utility model is adjustable the size of brake force by flywheel braking circuit structure, realizes the dynamic essence of brake force
Really control；
2, the utility model can realize the advantages that braking time is short, without impact, non-jitter phenomenon in braking process；
3, the power of the braking resistor of the requires of the utility model is smaller, and the fever of braking resistor is smaller, highly-safe.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon:
Fig. 1 is the circuit diagram of the utility model.
It is shown in figure:
Tachometer circuit 1
Control circuit 2
Braking circuit 3
Three inverter circuits 4
Specific embodiment
The utility model is described in detail combined with specific embodiments below.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, various modifications and improvements can be made.
These are all within the protection scope of the present invention.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom", "inner", "outside" be orientation based on the figure or
Positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
As shown in Figure 1, flywheel braking circuit structure provided by the utility model, includes tachometer circuit 1, control circuit 2, system
Dynamic circuit 3 and three-phase inverter circuitry 4.Wherein, it is straight that three-phase alternating current back-emf three-phase inverter circuitry 4: is reverse into bus
Flow back-emf；Tachometer circuit 1: being connected with three inverter circuits, and bus direct current back-emf is divided into the voltage that tests the speed；Control electricity
Road 2: being connected with tachometer circuit 1, receives the voltage that tests the speed；Braking circuit 3: being connected with control circuit 2, includes MOS switch element.
Three inverter circuits include voltage source E3, field-effect tube MOS1, field-effect tube MOS2, field-effect tube
MOS3, field-effect tube MOS4, field-effect tube MOS5, field-effect tube MOS6, capacitor C3, capacitor C4 and capacitor C5；Voltage source E3
Anode be connected to the drain electrode of field-effect tube MOS1, one end of capacitor C3, the drain electrode of field-effect tube MOS2, capacitor C4 one end,
The drain electrode of field-effect tube MOS3 and one end of capacitor C5, and the anode of voltage source E3 forms the connecting pin VCC；Voltage source E3's is negative
Pole be connected to the source electrode of field-effect tube MOS4, the other end of capacitor C3, the source electrode of field-effect tube MOS5, capacitor C4 the other end,
The source electrode of field-effect tube MOS6 and the other end of capacitor C5, and the cathode of voltage source E3 forms GND ground terminal；Effect pipe MOS1
Source electrode and the drain electrode of MOS4 be respectively formed three-phase alternating current back-emf U and be connected end, the drain electrode of the source electrode and MOS5 of effect pipe MOS2
It is respectively formed three-phase alternating current back-emf V to be connected end, it is anti-electric that the drain electrode of the source electrode and MOS6 of effect pipe MOS3 is respectively formed three-phase alternating current
Gesture W is connected end；The grid of field-effect tube MOS1, the grid of field-effect tube MOS2, the grid of field-effect tube MOS3, field-effect tube
The grid of the grid of MOS4, the grid of field-effect tube MOS5 and field-effect tube MOS6 is hanging.
The tachometer circuit 1 includes resistance R7, resistance R8, resistance R9 and capacitor C6；One end of resistance R7 forms VCC and connects
Connect end；The other end of resistance R7 is respectively connected to one end of resistance R8 and one end of resistance R9；The other end of resistance R8 is connected to
One end of capacitor C6 and ground connection, the other end of resistance R9 are connected to the other end and control circuit 2 of capacitor C6.
MOS switch element include field-effect tube MOS7, the braking circuit 3 also comprising resistance R1, resistance R2, resistance R3,
Resistance R4, resistance R5, resistance R6, diode D1, diode D2, capacitor C1, capacitor C2, triode Q1, triode Q2 and three
Pole pipe Q3；One end of resistance R1 is connected to the collector of triode Q1 and forms external power supply connecting pin, the other end of resistance R1
It is connected to the base stage of triode Q1 and the collector of triode Q2；The base stage of triode Q2 is connected to control circuit 2, triode Q2
Emitter be connected to one end of resistance R2, the other end of resistance R2 forms GND ground terminal；The emitter of triode Q2 is connected to
One end of the anode of diode D1, the base stage of triode Q3 and resistance R4, the cathode of diode D1 are connected to the one of resistance R3
End；The other end of resistance R3 is connected to one end of the collector of triode Q3, one end of resistance R5 and capacitor C1；Resistance R4's
The other end be connected to the emitter of triode Q3, the other end of capacitor C1, the source electrode of field-effect tube MOS7, capacitor C2 one end with
And the cathode of voltage source E3；The other end of resistance R5 is connected to the grid of field-effect tube MOS7；The drain electrode of field-effect tube MOS7 connects
It is connected to the other end of one end of resistance R6, the anode of diode D2 and capacitor C2；The other end of resistance R6 is connected to diode
The cathode of D2 and the anode of voltage source E3.
Preferably, the resistance R6 forms braking resistor；The control circuit 2 includes MCU or single-chip microcontroller.
Preferred embodiment:
According to flywheel braking circuit structure provided by the utility model, including tachometer circuit 1, control circuit 2, braking circuit
3, three-phase inverter circuitry 4.
The flywheel of rotation drives the p-m rotor rotation of motor, the magnetic field of p-m rotor by the threephase stator of motor around
Group cutting generates three-phase alternating current back-emf, which is reverse into bus direct current in three-phase inverter circuitry 4
Back-emf, the bus direct current back-emf feed back to control circuit 2 after tachometer circuit 1 is divided into and tests the speed voltage, and control circuit 2 exists
The switch member of the MOS7 in braking circuit 3 is controlled by the size of the voltage that tests the speed of analysis feedback after receiving outer brake instruction
The unlatching duty ratio of part, so that the size of current flowed through on braking resistor R6 is adjusted, to reach the size purpose of regulating brake force,
Realize that the dynamic of brake force accurately controls.
Tachometer circuit 1: the voltage-splitter resistance net in the bus direct current back-emf input tachometer circuit 1 of three-phase inverter circuitry 4
Network, the voltage output that tests the speed after partial pressure is to control circuit 2；
Control circuit 2: control circuit 2 passes through the size of the voltage that tests the speed of analysis feedback after receiving outer brake instruction
To adjust its unlatching duty ratio for controlling MOS7 switch element in braking circuit 3；
Braking circuit 3: braking resistor is adjusted by the size of the unlatching duty ratio of MOS7 switch element in braking circuit 3
The size of current flowed through on R6 realizes that the dynamic of brake force accurately controls to reach the size purpose of regulating brake force.
Three-phase inverter circuitry 4: the flywheel of rotation drives the p-m rotor rotation of motor, and the magnetic field of p-m rotor is electric
The threephase stator winding cutting of motivation generates three-phase alternating current back-emf, and the three-phase alternating current back-emf is in three-phase inverter circuitry 4
It is reverse into bus direct current back-emf.
Preferably, tachometer circuit 1: the partial pressure in the bus direct current back-emf input tachometer circuit 1 of three-phase inverter circuitry 4
Resistor network, the voltage output that tests the speed after partial pressure is to control circuit 2；
Preferably, the improvement in structure or method is further done on the basis of hardware configuration provided by the utility model, is made
It obtains control circuit 2 and adjusts its control braking by the size of the voltage that tests the speed of analysis feedback after receiving outer brake instruction
The unlatching duty ratio of MOS7 switch element in circuit 3；
Preferably, it braking circuit 3: is adjusted by the size of the unlatching duty ratio of MOS7 switch element in braking circuit 3
The size of current flowed through on braking resistor R6 realizes the dynamic essence of brake force to reach the size purpose for adjusting stopping power
Really control.
Preferably, three-phase inverter circuitry 4: the flywheel of rotation drives the p-m rotor rotation of motor, p-m rotor
Magnetic field generates three-phase alternating current back-emf by the threephase stator winding cutting of motor, and the three-phase alternating current back-emf is in three-phase inverter
Bus direct current back-emf is reverse into circuit 4.
The control circuit 2 can be the structures such as MCU or single-chip microcontroller, and it receives outer brake instruction, control MOS
7 switch element of pipe is opened the functions such as duty ratio and can be realized by the prior art well-known to those skilled in the art, this is practical
Novel focused protection be each electronic component in circuit physical couplings.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims,
This has no effect on the substantive content of the utility model.In the absence of conflict, the spy in embodiments herein and embodiment
Sign can be arbitrarily combined with each other.
Claims (5)
1. a kind of flywheel braking circuit structure, which is characterized in that include tachometer circuit (1), control circuit (2), braking circuit (3)
And three-phase inverter circuitry (4)；
Three-phase inverter circuitry (4): three-phase alternating current back-emf is reverse into bus direct current back-emf；
Tachometer circuit (1): being connected with three inverter circuits, and bus direct current back-emf is divided into the voltage that tests the speed；
Control circuit (2): being connected with tachometer circuit (1), receives the voltage that tests the speed；
Braking circuit (3): being connected with control circuit (2), includes MOS switch element.
2. flywheel braking circuit structure according to claim 1, which is characterized in that three inverter circuits include electricity
Potential source E3, field-effect tube MOS1, field-effect tube MOS2, field-effect tube MOS3, field-effect tube MOS4, field-effect tube MOS5, field effect
It should pipe MOS6, capacitor C3, capacitor C4 and capacitor C5；
The anode of voltage source E3 is connected to the drain electrode of field-effect tube MOS1, one end of capacitor C3, the drain electrode of field-effect tube MOS2, electricity
Hold one end, the drain electrode of field-effect tube MOS3 and one end of capacitor C5 of C4, and the anode of voltage source E3 forms the connecting pin VCC；
The cathode of voltage source E3 be connected to the source electrode of field-effect tube MOS4, the other end of capacitor C3, field-effect tube MOS5 source electrode,
The other end of the other end of capacitor C4, the source electrode of field-effect tube MOS6 and capacitor C5, and the cathode of voltage source E3 forms GND and connects
Ground terminal；
The source electrode of effect pipe MOS1 and the drain electrode of MOS4 are respectively formed three-phase alternating current back-emf U and are connected end, the source of effect pipe MOS2
Pole and the drain electrode of MOS5 are respectively formed three-phase alternating current back-emf V and are connected end, the equal shape of drain electrode of the source electrode and MOS6 of effect pipe MOS3
It is connected end at three-phase alternating current back-emf W；
The grid of field-effect tube MOS1, the grid of field-effect tube MOS2, the grid of field-effect tube MOS3, field-effect tube MOS4 grid
The grid of pole, the grid of field-effect tube MOS5 and field-effect tube MOS6 is hanging.
3. flywheel braking circuit structure according to claim 2, which is characterized in that the tachometer circuit (1) includes resistance
R7, resistance R8, resistance R9 and capacitor C6；
One end of resistance R7 forms the connecting pin VCC；The other end of resistance R7 is respectively connected to one end of resistance R8 with resistance R9's
One end；
The other end of resistance R8 is connected to one end of capacitor C6 and ground connection, and the other end of resistance R9 is connected to the other end of capacitor C6
With control circuit (2).
4. flywheel braking circuit structure according to claim 3, which is characterized in that MOS switch element includes field-effect tube
MOS7, the braking circuit (3) also comprising resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, diode D1,
Diode D2, capacitor C1, capacitor C2, triode Q1, triode Q2 and triode Q3；
One end of resistance R1 is connected to the collector of triode Q1 and forms external power supply connecting pin, the other end connection of resistance R1
To the base stage of triode Q1 and the collector of triode Q2；
The base stage of triode Q2 is connected to control circuit (2), and the emitter of triode Q2 is connected to one end of resistance R2, resistance R2
The other end formed GND ground terminal；
The emitter of triode Q2 is connected to one end of the anode of diode D1, the base stage of triode Q3 and resistance R4, two poles
The cathode of pipe D1 is connected to one end of resistance R3；
The other end of resistance R3 is connected to one end of the collector of triode Q3, one end of resistance R5 and capacitor C1；
The other end of resistance R4 is connected to the emitter of triode Q3, the other end of capacitor C1, the source electrode of field-effect tube MOS7, electricity
Hold one end of C2 and the cathode of voltage source E3；
The other end of resistance R5 is connected to the grid of field-effect tube MOS7；
The drain electrode of field-effect tube MOS7 is connected to the other end of one end of resistance R6, the anode of diode D2 and capacitor C2；
The other end of resistance R6 is connected to the cathode of diode D2 and the anode of voltage source E3.
5. flywheel braking circuit structure according to claim 4, which is characterized in that the resistance R6 forms braking resistor；
The control circuit (2) includes MCU or single-chip microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821627572.2U CN208943358U (en) | 2018-10-08 | 2018-10-08 | Flywheel braking circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821627572.2U CN208943358U (en) | 2018-10-08 | 2018-10-08 | Flywheel braking circuit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208943358U true CN208943358U (en) | 2019-06-07 |
Family
ID=66740639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821627572.2U Active CN208943358U (en) | 2018-10-08 | 2018-10-08 | Flywheel braking circuit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208943358U (en) |
-
2018
- 2018-10-08 CN CN201821627572.2U patent/CN208943358U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 201100 floor 1-2, block a, 19 Lane 133, Guangzhong Road, Minhang District, Shanghai Patentee after: Aneida drive technology (Shanghai) Co., Ltd Address before: 1-3 Floors of Building No. 2060 Duyuan Road, Minhang District, Shanghai 201100 Patentee before: Xin'an Naida drive technology (Shanghai) Limited by Share Ltd |
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| CP03 | Change of name, title or address |