CN209642583U - Safe torque breaking circuit and its electric machine control system of application - Google Patents
Safe torque breaking circuit and its electric machine control system of application Download PDFInfo
- Publication number
- CN209642583U CN209642583U CN201822165194.7U CN201822165194U CN209642583U CN 209642583 U CN209642583 U CN 209642583U CN 201822165194 U CN201822165194 U CN 201822165194U CN 209642583 U CN209642583 U CN 209642583U
- Authority
- CN
- China
- Prior art keywords
- circuit
- input
- output
- coupled transfer
- safe torque
- 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.)
- Withdrawn - After Issue
Links
- 238000012546 transfer Methods 0.000 claims abstract description 83
- 238000012545 processing Methods 0.000 claims abstract description 22
- 230000008054 signal transmission Effects 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 10
- 238000003745 diagnosis Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 101000981375 Homo sapiens Nuclear cap-binding protein subunit 1 Proteins 0.000 description 2
- 102100024372 Nuclear cap-binding protein subunit 1 Human genes 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The safe torque breaking circuit and system of the application, circuit include: first passage, second channel and third channel；First passage includes: the first input circuit of company, the first coupled transfer circuit, the first output circuit；Second channel includes: the 4th input circuit, the 4th coupled transfer circuit and the second output circuit of company；Third channel includes: the processing circuit of the output end of the second input circuit, the second coupled transfer circuit of the output end of the first input circuit of connection, third input circuit, the third coupled transfer circuit of the output end of connection third input circuit, the second coupled transfer circuit of connection and third coupled transfer circuit；Opposite frequency convertor system, which is distinguished, between first and second input circuits, between the input terminal of the third and fourth input circuit exports enable signal；The output end of third output circuit draws safe torque power cutoff end to provide power supply to frequency convertor system；The more reliable and different channel design of the scheme of three tunnel redundancies reduces the risk of common cause failure.
Description
Technical field
This application involves field of circuit technology more particularly to safe torque breaking circuit and its motor control systems of application
System.
Background technique
Safe torque turns off (Safe Torque Off) abbreviation STO, is a kind of to be specifically applied to frequency converter security control
Security function, be using safe input signal circuit by forcibly close frequency converter inside power transistor drive
Dynamic signal and then the security function for closing the output torque of motor.It prevents the accidental activation of motor, protection staff and sets
Standby safety.
The circuit of STO and system use two-way Redundancy Design at present, improve the safety of system, however two-way redundancy is set
Meter, in prolonged operation, probably due to the accumulation of failure causes security function to fail, therefore under given conditions, meeting
Lead to the failure of security function circuit, dangerous generation.
Some disclose two-way Redundancy Design in the prior art and add the STO functional circuit being periodically detected, the circuit due to
The method for taking dynamic detection ensure that circuit diagnosis coverage rate with higher, can be realized the safety of field application, but by
Essentially identical design is used between two channels of the program, therefore the probability of common cause failure can be relatively high, there is certain application
Risk.
Summary of the invention
In view of the foregoing deficiencies of prior art, the application is designed to provide safe torque breaking circuit and its answers
Electric machine control system, there are still the safety problems of failure for STO circuit safety Redundancy Design in the prior art for solution.
To realize that above-mentioned target and other related objectives, the application provide a kind of safe torque breaking circuit, comprising: first
Channel, second channel and third channel；The first passage includes: the first input circuit, connection first input circuit
First coupled transfer circuit of output end, connection the first coupled transfer circuit output end the first output circuit；It is described
Second channel includes: the 4th input circuit, the 4th coupled transfer circuit of the output end of connection the 4th input circuit, connection
Second output circuit of the output end of the 4th coupled transfer circuit；The third channel includes: the second input circuit, connection
The second coupled transfer circuit, third input circuit, the connection third input circuit of the output end of first input circuit
The third coupled transfer circuit of output end, connection the second coupled transfer circuit and third coupled transfer circuit output end
Processing circuit；Wherein, the processing circuit includes: to be separately connected the second coupled transfer circuit and third coupled transfer circuit
The first input end of output end and the second input terminal, the first diagnosis end for being separately connected the first output circuit and the second output circuit
With second opinion end, connects the first output end of third output circuit and connect the second output terminal of watchdog circuit；Wherein,
First diagnosis end is used to diagnose the fault-signal of first passage to control the on/off of the first output circuit, and described second examines
The broken ends of fractured bone is used to diagnose the fault-signal of second channel to control the on/off of the second output circuit；The watchdog circuit connects institute
Third output circuit is stated, the on/off of third control output circuit is controlled for the fault-signal of detection processing circuit；Described
The input terminal of one input circuit and the second input circuit is connected and draws the first safe torque shutdown input terminal；The third input
The input terminal of circuit and the 4th input circuit is connected and draws the second safe torque shutdown input terminal；First output circuit and
The output end of second output circuit draws the first safe torque shutdown output end and the second safe torque shutdown output end, institute respectively
The output end for stating third output circuit draws safe torque power cutoff end；First safe torque turns off output end and second
Safe torque shutdown output end is connected to frequency convertor system, for exporting enable signal；Safe torque power cutoff end connects
It is connected to frequency convertor system, for providing out-put supply.
In an embodiment, the first safe torque shutdown input terminal and the second safe torque shutdown input terminal pass through respectively
First switch circuit and second switch circuit connection are in an input power.
In an embodiment, in the first switch closing of circuit, the input power enables the first input circuit receive
To high level, the output of first input circuit enables the input side of the first coupled transfer circuit generate induced current, and through coupling
The outlet side for being transmitted to the first coupled transfer circuit is closed, and the first output circuit is enabled to export high level；Alternatively, being opened described first
When powered-down road disconnects, the first output circuit is enabled to export low level；In the second switch closing of circuit, the input power is enabled
4th input circuit receives high level, and the output of the 4th input circuit enables the input side of the 4th coupled transfer circuit generate
Induced current, and the coupled outlet side for being transmitted to the 4th coupled transfer circuit, and the second output circuit is enabled to export high level；Or
Person enables the second output circuit export low level when the second switch circuit disconnects；In the first switch circuit and second
When switching circuit is closed, the input power enables the first input circuit and the second input circuit receive high level, enables the respectively
The input side of two coupled transfer circuits and third coupled transfer circuit generates induced current, and coupled is respectively transmitted to the second coupling
The outlet side of transmission circuit and third coupled transfer circuit is closed to generate high level output；The processing circuit is in its first input
End and the second input terminal be when receiving high level, control third output circuit conducting to provide out-put supply, receive to
When a few low level, control third output circuit is disconnected.
In an embodiment, the first coupled transfer circuit, the second coupled transfer circuit, third coupled transfer circuit,
And the 4th coupled transfer circuit be optocoupler transmission circuit.
In an embodiment, the safe torque breaking circuit, further includes: voltage conversion circuit connects the output
Power supply is converted to one or more power supplies of scheduled voltage for the power supply output by the out-put supply.
In an embodiment, the safe torque breaking circuit, further includes: detection circuit, input terminal connection described in
Out-put supply, output end are connected to the also included sampling end of processing circuit；The detection circuit, for the out-put supply
Power supply output sampled to generate sampled signal and export to the processing circuit.
To realize that above-mentioned target and other related objectives, the application provide a kind of electric machine control system, comprising: frequency converter system
System and the safe torque breaking circuit；The frequency convertor system, comprising: control power module, for connecting three-phase motor；
Connection is formed with upper bridge arm signal path and lower bridge arm signal path between micro treatment module, with the control power module, uses
Signal is controlled in transmission electrical machine；Multiple signal transmission modules are connected to each upper bridge arm signal path and lower bridge arm letter
In number channel；The safe torque power cutoff end of the safe torque breaking circuit is connected to the confession of each signal transmission module
Electric end, the first safe torque shutdown output end are connected to the enable end of the signal transmission module in each upper bridge arm signal path, the
Two safe torques shutdown output end is connected to the enable end of the signal transmission module in each lower bridge arm signal path, to control each letter
The on-off of number transmission module.
In an embodiment, at least two are respectively equipped in the upper bridge arm signal path and lower bridge arm signal path
Concatenated signal transmission module.
In an embodiment, the signal transmission module includes: appointing in buffer in the same direction, isolating chip and phase inverter
Anticipate one or more.
In an embodiment, the upper bridge arm signal path and the lower bridge arm signal path respectively include multiple routes,
Each signal transmission module is that the signal circuit at multi input end and multi output end is realized, with connect simultaneously it is each it is described on
Each route of bridge arm signal path, or each route of each lower bridge arm signal path is connected simultaneously.
As described above, the safe torque breaking circuit of the application and its electric machine control system of application, the safe torque
Breaking circuit, comprising: first passage, second channel and third channel；The first passage includes: the first input circuit, connection
The output end of first coupled transfer circuit of the output end of first input circuit, connection the first coupled transfer circuit
First output circuit；The second channel include: the 4th input circuit, connection the 4th input circuit output end the 4th
Coupled transfer circuit, connection the 4th coupled transfer circuit output end the second output circuit；The third channel includes:
Second input circuit, the second coupled transfer circuit of the output end of connection first input circuit, third input circuit, connection
Third coupled transfer circuit, connection the second coupled transfer circuit and the third coupling of the output end of the third input circuit
The processing circuit of the output end of transmission circuit；Between first and second input circuit, third and fourth input circuit
Opposite frequency convertor system is distinguished between input terminal exports enable signal；The output end of the third output circuit is drawn safe torque and is closed
Source is powered off to provide power supply to frequency convertor system；Scheme using three tunnel redundancies more may be used than the technical solution of two-way redundancy
It leans on, while reducing the risk of common cause failure using different channel design schemes.
Detailed description of the invention
Fig. 1 is shown as the structural schematic diagram of safe torque breaking circuit in the embodiment of the present application.
Fig. 2 is shown as the structural schematic diagram of electric machine control system in the embodiment of the present application.
Specific embodiment
Illustrate presently filed embodiment below by way of specific specific example, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the application easily.The application can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit herein.It should be noted that in the absence of conflict, the embodiment in the application
And the feature in embodiment can be combined with each other.
In the prior art due to two-way redundancy, and the symmetrical scheme of circuit structure of two paths, easy detonator circuit fail
The problem of, in consideration of it, the application designs the safe torque breaking circuit of more multiplexer channel, and cooperate different channel circuit designs
Scheme solves problem of the prior art.
As shown in Figure 1, showing the safe torque breaking circuit in the embodiment of the present application comprising: first passage, second are led to
Road and third channel.
The first passage include: the first input circuit 110, connection first input circuit 110 output end the
One coupled transfer circuit 111, connection the first coupled transfer circuit 111 output end the first output circuit 112.
The second channel include: the 4th input circuit 120, connection the 4th input circuit 120 output end the
Four coupled transfer circuits 121, connection the 4th coupled transfer circuit 121 output end the second output circuit 122.
The third channel include: the second input circuit 130, connection first input circuit 110 output end the
The third coupling of two coupled transfer circuits 131, third input circuit 132, the output end for connecting the third input circuit 132 passes
The processing circuit of the output end on transmission of electricity road 133, connection the second coupled transfer circuit 131 and third coupled transfer circuit 133
134。
Wherein, the processing circuit 134 includes: to be separately connected the second coupled transfer circuit 131 and third coupled transfer electricity
The first input end of the output end on road 133 and the second input terminal are separately connected the first output circuit 112 and the second output circuit
122 the first diagnosis end and second opinion end connect the first output end of third output circuit 135 and connect 136 electricity of house dog
The second output terminal on road；Wherein, first diagnosis end is used to diagnose the fault-signal of first passage to control the first output electricity
The on/off on road 112, the second opinion end are used to diagnose the fault-signal of second channel to control the second output circuit 122
On/off；Third output circuit 135 described in 136 circuit connection of house dog, the fault-signal for detection processing circuit 134
To control the on/off of third control output circuit.
In one example, the processing circuit 134 can be the realization of the integrated circuits such as single-chip microcontroller, MCU, FPGA, only need
It is able to achieve the function at each end in figure, requirement is not construed as limiting to its model.
First input circuit 110 is connected with the input terminal of the second input circuit 130 and draws the first safe torque pass
Disconnected input terminal (STO1 is expressed as in figure)；The third input circuit 132 is connected and draws with the input terminal of the 4th input circuit 120
Second safe torque shutdown input terminal (STO1 is expressed as in figure) out；First output circuit 112 and the second output circuit 122
Output end draw the first safe torque shutdown output end and the second safe torque shutdown output end, third output electricity respectively
The output end on road 135 draws safe torque power cutoff end；The first safe torque shutdown output end (is expressed as in figure
STO1-EN) and the second safe torque shutdown output end (STO2-EN is expressed as in figure) is connected to frequency convertor system, for exporting
Enable signal；Safe torque power cutoff end (STO-VCC is expressed as in figure) is connected to frequency convertor system, defeated for providing
Power supply out.
In an embodiment, the first safe torque shutdown input terminal and the second safe torque shutdown input terminal pass through respectively
First switch circuit and second switch circuit connection are in an input power, such as 24V power supply；Optionally, it described first opens
Powered-down road and second switch circuit belong to double-pole double-throw switching circuit, that is to say, that the first switch circuit and second is opened
Powered-down road can be opened and closed simultaneously.
In the first switch closing of circuit, the input power enables the first input circuit 110 receive high level, institute
The output for stating the first input circuit 110 enables the input side of the first coupled transfer circuit 111 generate induced current, and coupled transmission
To the outlet side of the first coupled transfer circuit 111, and the first output circuit 112 is enabled to export high level；Alternatively, being opened described first
When powered-down road disconnects, the first output circuit 112 is enabled to export low level.
In the second switch closing of circuit, the input power enables the 4th input circuit 120 receive high level, institute
The output for stating the 4th input circuit 120 enables the input side of the 4th coupled transfer circuit 121 generate induced current, and coupled transmission
To the outlet side of the 4th coupled transfer circuit 121, and the second output circuit 122 is enabled to export high level；Alternatively, being opened described second
When powered-down road disconnects, the second output circuit 122 is enabled to export low level.
In the first switch circuit and second switch closing of circuit, the input power enables the first input circuit 110
High level is received with the second input circuit 130, enables the second coupled transfer circuit 131 and third coupled transfer circuit 133 respectively
Input side generate induced current, and coupled be respectively transmitted to the second coupled transfer circuit 131 and third coupled transfer circuit
133 outlet side is to generate high level output；The processing circuit 134 is received in its first input end and the second input terminal
When high level, the control conducting of third output circuit 135 is to provide out-put supply, when receiving at least one low level, control
Third output circuit 135 disconnects.
In an embodiment, the first coupled transfer circuit 111, the second coupled transfer circuit 131, third coupled transfer
Circuit 133 and the 4th coupled transfer circuit 121 are that optocoupler transmission circuit is also possible to magnetic coupling certainly in other embodiments
Transmission circuit etc..
In an embodiment, the safe torque breaking circuit, further includes: voltage conversion circuit 137 connects described defeated
Power supply out is converted to one or more power supplies of scheduled voltage for the power supply output by out-put supply VCC, to example
Each input circuit, photoelectric coupled circuit in such as safe torque breaking circuit are powered.
In an embodiment, the safe torque breaking circuit, further includes: detection circuit 138, input terminal connect institute
Out-put supply is stated, output end is connected to the also included sampling end of processing circuit 134；The detection circuit 138, for described
The power supply output of out-put supply is sampled to generate sampled signal and export to the processing circuit 134.
As shown in Fig. 2, showing the electrical block diagram of the electric machine control system in the embodiment of the present application.
The system comprises: frequency convertor system and the safe torque breaking circuit.
The frequency convertor system, comprising:
Power module 201 is controlled, connects and controls three-phase motor 200；
Between micro treatment module 202, with the control power module 201 connection be formed with upper bridge arm signal path 203 and
Lower bridge arm signal path 204, is used for transmission motor control signal.
Specifically, the mode of Frequency Converter Control motor is that different pwm pulses is generated using micro treatment module 202 (uP),
The conducting for controlling 3 IGBT of bridge and lower 3 IGBT of bridge on power module 201 (PM) is played the role of controlling three-phase motor, this reality
It applies in example, upper bridge arm signal path 203 and lower bridge arm signal path 204 have three-line respectively, are used for micro treatment module 202
(uP) the three road pwm pulses generated are transmitted to control power module 201 (PM).
Multiple signal transmission modules 205 are connected to each upper bridge arm signal path 203 and lower bridge arm signal path
In 204；The safe torque power cutoff end of the safe torque breaking circuit is connected to each signal transmission module 205
Feeder ear (is shown as VCC) in figure, the first safe torque shutdown output end is connected to the letter in each upper bridge arm signal path 203
The enable end (EN is shown as in figure) of number transmission module 205, the second safe torque shutdown output end are connected to each lower bridge arm signal
The enable end (EN is shown as in figure) of signal transmission module 205 in channel 204, to control the logical of each signal transmission module 205
It is disconnected.
In an embodiment, the signal transmission module 205 can be buffer in the same direction and realize, certainly, in other implementations
It is also possible to isolating chip, phase inverter etc. in example, it is therefore intended that the hardware chip or circuit that one can turn off can be provided.
It should be noted that in the present embodiment, the upper bridge arm signal path 203 and the lower bridge arm signal path 204
Multiple routes, specially 3 are respectively included, then each signal transmission module 205 can be multi input end and multi output end
Signal circuit realize, to connect each route of each upper bridge arm signal path 203 simultaneously, or connect simultaneously each described
Each route of lower bridge arm signal path 204.
Optionally, in the present embodiment, distinguish in the upper bridge arm signal path 203 and lower bridge arm signal path 204
Equipped at least two concatenated signal transmission modules 205, can greatly be dropped using two, each channel signal transmission module 205
The probability that low failure occurs, for example, there is a signal transmission module 205 to break down in upper bridge arm signal path 203, peace
Full torque breaking circuit controls another and directly disconnects.Certainly, the quantity of signal transmission module 205 is only to lift in above-described embodiment
Example, can change in other embodiments, be not limited thereto.
In conclusion the safe torque breaking circuit of the application and its electric machine control system of application, the safe torque
Breaking circuit, comprising: first passage, second channel and third channel；The first passage includes: the first input circuit, connection
The output end of first coupled transfer circuit of the output end of first input circuit, connection the first coupled transfer circuit
First output circuit；The second channel include: the 4th input circuit, connection the 4th input circuit output end the 4th
Coupled transfer circuit, connection the 4th coupled transfer circuit output end the second output circuit；The third channel includes:
Second input circuit, the second coupled transfer circuit of the output end of connection first input circuit, third input circuit, connection
Third coupled transfer circuit, connection the second coupled transfer circuit and the third coupling of the output end of the third input circuit
The processing circuit of the output end of transmission circuit；Between first and second input circuit, third and fourth input circuit
Opposite frequency convertor system is distinguished between input terminal exports enable signal；The output end of the third output circuit is drawn safe torque and is closed
Source is powered off to provide power supply to frequency convertor system；Scheme using three tunnel redundancies more may be used than the technical solution of two-way redundancy
It leans on, while reducing the risk of common cause failure using different channel design schemes.
The principles and effects of the application are only illustrated in above-described embodiment, not for limitation the application.It is any ripe
Know the personage of this technology all can without prejudice to spirit herein and under the scope of, carry out modifications and changes to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from spirit disclosed herein and institute under technical idea such as
At all equivalent modifications or change, should be covered by claims hereof.
Claims (10)
1. a kind of safe torque breaking circuit characterized by comprising
First passage, second channel and third channel；
The first passage include: the first input circuit, connection first input circuit output end the first coupled transfer
Circuit, connection the first coupled transfer circuit output end the first output circuit；
The second channel include: the 4th input circuit, connection the 4th input circuit output end the 4th coupled transfer
Circuit, connection the 4th coupled transfer circuit output end the second output circuit；
The third channel include: the second input circuit, connection first input circuit output end the second coupled transfer
Circuit, third input circuit, the third coupled transfer circuit of the output end of the connection third input circuit, connection described second
The processing circuit of the output end of coupled transfer circuit and third coupled transfer circuit；
Wherein, the processing circuit includes: the output end for being separately connected the second coupled transfer circuit and third coupled transfer circuit
First input end and the second input terminal, the first diagnosis end and second for being separately connected the first output circuit and the second output circuit
End is diagnosed, the first output end of third output circuit is connected and connects the second output terminal of watchdog circuit；Wherein, described
One diagnosis end is used to diagnose the fault-signal of first passage to control the on/off of the first output circuit, and the second opinion end is used
The on/off of the second output circuit is controlled in the fault-signal of diagnosis second channel；The watchdog circuit connects the third
Output circuit controls the on/off of third control output circuit for the fault-signal of detection processing circuit；
The input terminal of first input circuit and the second input circuit is connected and draws the first safe torque shutdown input terminal；Institute
The input terminal for stating third input circuit and the 4th input circuit is connected and draws the second safe torque shutdown input terminal；Described first
The output end of output circuit and the second output circuit draws the first safe torque shutdown output end respectively and the second safe torque closes
The output end of disconnected output end, the third output circuit draws safe torque power cutoff end；
The first safe torque shutdown output end and the second safe torque shutdown output end are connected to frequency convertor system, for defeated
Enable signal out；Safe torque power cutoff end is connected to frequency convertor system, for providing out-put supply.
2. safe torque breaking circuit according to claim 1, which is characterized in that the first safe torque shutdown input
End and the second safe torque shutdown input terminal are respectively through first switch circuit and second switch circuit connection in an input power.
3. safe torque breaking circuit according to claim 2, which is characterized in that in the first switch closing of circuit
When, the input power enables the first input circuit receive high level, and the output of first input circuit enables the first coupling pass
The input side on road of transmitting electricity generates induced current, and the coupled outlet side for being transmitted to the first coupled transfer circuit, and enables first defeated
Circuit output high level out；Alternatively, enabling the first output circuit export low level when the first switch circuit disconnects；Institute
When stating second switch closing of circuit, the input power enables the 4th input circuit receive high level, the 4th input circuit
Output enable the input side of the 4th coupled transfer circuit generate induced current, and coupled the 4th coupled transfer circuit that is transmitted to
Outlet side, and the second output circuit is enabled to export high level；Alternatively, enabling the second output electric when the second switch circuit disconnects
Road exports low level；
In the first switch circuit and second switch closing of circuit, the input power enables the first input circuit and second defeated
Enter circuit and receive high level, the input side of the second coupled transfer circuit and third coupled transfer circuit is enabled to generate induced electricity respectively
Stream, and coupled respectively it is transmitted to the second coupled transfer circuit and the outlet side of third coupled transfer circuit is defeated to generate high level
Out；The processing circuit when its first input end and the second input terminal receive high level, lead by control third output circuit
Offer out-put supply is passed to, when receiving at least one low level, control third output circuit is disconnected.
4. safe torque breaking circuit according to claim 1 or 3, which is characterized in that the first coupled transfer circuit,
Second coupled transfer circuit, third coupled transfer circuit and the 4th coupled transfer circuit are optocoupler transmission circuit.
5. safe torque breaking circuit according to claim 1, which is characterized in that further include: voltage conversion circuit, connection
The out-put supply is converted to one or more power supplies of scheduled voltage for the power supply output by the out-put supply.
6. safe torque breaking circuit according to claim 1, which is characterized in that further include: detection circuit, input terminal
The out-put supply is connected, output end is connected to the also included sampling end of processing circuit；The detection circuit, for described
The power supply output of out-put supply is sampled to generate sampled signal and export to the processing circuit.
7. a kind of electric machine control system characterized by comprising frequency convertor system and as described in any one of claims 1 to 6
Safe torque breaking circuit；
The frequency convertor system, comprising:
Power module is controlled, connects and controls three-phase motor；
Connection is formed with upper bridge arm signal path between micro treatment module, with the control power module and lower bridge arm signal is logical
Road is used for transmission motor control signal；
Multiple signal transmission modules are connected in each upper bridge arm signal path and lower bridge arm signal path；
The safe torque power cutoff end of the safe torque breaking circuit is connected to the feeder ear of each signal transmission module,
First safe torque shutdown output end is connected to the enable end of the signal transmission module in each upper bridge arm signal path, the second safety
Torque shutdown output end is connected to the enable end of the signal transmission module in each lower bridge arm signal path, to control each signal transmission
The on-off of module.
8. electric machine control system according to claim 7, which is characterized in that the upper bridge arm signal path and lower bridge
At least two concatenated signal transmission modules are respectively equipped in arm signal path.
9. electric machine control system according to claim 7, which is characterized in that the signal transmission module includes: slow in the same direction
Rush in device, isolating chip and phase inverter it is any one or more.
10. electric machine control system according to claim 7, which is characterized in that the upper bridge arm signal path and it is described under
Bridge arm signal path respectively includes multiple routes, and each signal transmission module is the signal biography at multi input end and multi output end
Transmission of electricity road is realized, to connect each route of each upper bridge arm signal path simultaneously, or connects each lower bridge arm signal simultaneously
Each route in channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822165194.7U CN209642583U (en) | 2018-12-21 | 2018-12-21 | Safe torque breaking circuit and its electric machine control system of application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822165194.7U CN209642583U (en) | 2018-12-21 | 2018-12-21 | Safe torque breaking circuit and its electric machine control system of application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209642583U true CN209642583U (en) | 2019-11-15 |
Family
ID=68475175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822165194.7U Withdrawn - After Issue CN209642583U (en) | 2018-12-21 | 2018-12-21 | Safe torque breaking circuit and its electric machine control system of application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209642583U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111355428A (en) * | 2018-12-21 | 2020-06-30 | 上海辰竹仪表有限公司 | Safe torque turn-off circuit and motor control system applying same |
| CN114499285A (en) * | 2022-03-30 | 2022-05-13 | 美的集团(上海)有限公司 | Safe torque shutdown function circuit and control method |
| US11831258B2 (en) | 2020-07-20 | 2023-11-28 | Zhejiang Holip Electronic Technology Co., Ltd. | Safe-Torque-Off (STO) circuit and frequency converter including the same |
| US11988421B2 (en) | 2021-05-20 | 2024-05-21 | Carrier Corporation | Heat exchanger for power electronics |
-
2018
- 2018-12-21 CN CN201822165194.7U patent/CN209642583U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111355428A (en) * | 2018-12-21 | 2020-06-30 | 上海辰竹仪表有限公司 | Safe torque turn-off circuit and motor control system applying same |
| CN111355428B (en) * | 2018-12-21 | 2024-05-14 | 上海辰竹仪表有限公司 | Safety torque turn-off circuit and motor control system using same |
| US11831258B2 (en) | 2020-07-20 | 2023-11-28 | Zhejiang Holip Electronic Technology Co., Ltd. | Safe-Torque-Off (STO) circuit and frequency converter including the same |
| US11988421B2 (en) | 2021-05-20 | 2024-05-21 | Carrier Corporation | Heat exchanger for power electronics |
| CN114499285A (en) * | 2022-03-30 | 2022-05-13 | 美的集团(上海)有限公司 | Safe torque shutdown function circuit and control method |
| CN114499285B (en) * | 2022-03-30 | 2024-02-13 | 美的集团(上海)有限公司 | Safety torque shut-off function circuit and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209642583U (en) | Safe torque breaking circuit and its electric machine control system of application | |
| CN111355428B (en) | Safety torque turn-off circuit and motor control system using same | |
| US9570973B2 (en) | Bridgeless power factor correction circuit and control method utilizing control module to control current flow in power module | |
| US8566415B2 (en) | Safe torque off over network wiring | |
| CN101905700B (en) | Computer interlocking system and working method thereof | |
| CN101905701B (en) | Turnout execution unit of computer interlocking system and working method thereof | |
| CN103208793B (en) | Anti-reverse connection circuit of direct current power supply | |
| CN108089567B (en) | Semiconductor dry-wet contact fault diagnosis circuit and diagnosis method | |
| US20170229864A1 (en) | Medium and high voltage grid-connected power generation system, medium and high voltage grid-connected system and control unit thereof | |
| CN202444248U (en) | Direct-current traction power supply protection device | |
| CN105337598A (en) | Air conditioner, and circuit having low stand-by power consumption and control method thereof | |
| CN109287056A (en) | A kind of single-fire-wire electronic switch | |
| CN105939148A (en) | Photovoltaic cell monitor apparatus | |
| CN201169470Y (en) | Non-following cable elevator, elevator control information transmission system and elevator guide rail | |
| CN104538949A (en) | Remote power supply system and cable short circuit fault isolation method | |
| CN109039094A (en) | A kind of intelligent power module | |
| CN203933487U (en) | A kind of commutation control module | |
| CN214474556U (en) | Switch remote control system | |
| CN104270173A (en) | Device for conducting communication through power line | |
| JP2014011708A (en) | Bidirectional communication system, semiconductor driving device, and power conversion device | |
| CN203872044U (en) | Fiber laser power supply driving circuit | |
| CN108461330B (en) | A kind of three power automatic transfer switch devices | |
| CN106160429A (en) | Emergency power supply information transmission system based on fiber-optic signal | |
| CN115367575B (en) | Elevator safety control device and control method thereof | |
| CN204258609U (en) | A kind of high-reliability high frequency converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230907 Address after: 201612 room 702, building 5, No. 518, Xinzhuan Road, Songjiang high tech park, Caohejing Development Zone, Songjiang District, Shanghai Patentee after: SHANGHAI CHENZHU INSTRUMENT Co.,Ltd. Address before: Room 702, Building 5, No. 518 Xinzhuan Road, Songjiang High tech Park, Caohejing Development Zone, Songjiang District, Shanghai, 2016 Patentee before: SHANGHAI CHENZHU INSTRUMENT Co.,Ltd. Patentee before: SHANGHAI CHENZHU SAFETY TECHNOLOGY Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191115 Effective date of abandoning: 20240514 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191115 Effective date of abandoning: 20240514 |