CN221202383U - Motor braking control system - Google Patents
Motor braking control system Download PDFInfo
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- CN221202383U CN221202383U CN202322932181.9U CN202322932181U CN221202383U CN 221202383 U CN221202383 U CN 221202383U CN 202322932181 U CN202322932181 U CN 202322932181U CN 221202383 U CN221202383 U CN 221202383U
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- 238000004804 winding Methods 0.000 claims abstract description 39
- 238000001816 cooling Methods 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The application provides a motor braking control system which comprises a main control chip, a first relay, a second relay, a third relay, a first resistor, a second resistor, a third resistor and a motor, wherein the first relay is connected with the main control chip; the motor is provided with a first winding port, a second winding port and a third winding port; one end of a coil of the first relay is connected with a first power supply, and the other end of the coil of the first relay is connected with a signal output end of the main control chip; one end of a coil of the second relay is connected with a second power supply, and the other end of the coil of the second relay is connected with a signal output end of the main control chip; one end of the coil of the third relay is connected with a third power supply, and the other end of the coil of the third relay is connected with the signal output end of the main control chip. The first winding port, the contact of the first relay, the first resistor and the first grounding end are sequentially connected in series; the second winding port, the contact of the second relay, the second resistor and the second grounding end are sequentially connected in series; the third winding port, the contact of the third relay, the third resistor and the third grounding end are sequentially connected in series. The application improves the reliability and stability of the whole system.
Description
Technical Field
The application relates to the technical field of motor stopping control, in particular to a motor stopping control system.
Background
The motor is typically operated at a high speed during operation, and thus when it is desired to stop the motor, such as a miniature motor in a medical device for rotating the working head, from rotation to stop. The motor is first de-energized, but the rotational inertia of the motor still exists, resulting in a high back-emf generated by the motor's own drive circuitry. Such back-emf can lead to damage to circuit power tubes or other electronic components.
Further, even if the motor is powered off, the motor may take a certain amount of time to completely stop rotating due to the existence of rotational inertia. In this case, the conventional solution is to introduce an external braking device to achieve a rapid braking of the motor. These braking devices are typically mechanically or electrically coupled to the motor to provide additional braking force to slow or stop the rotation of the motor.
The problem with this approach is that it introduces additional hardware, adding to the cost of the system. In addition, these external brake devices often require more space and may increase maintenance requirements of the system.
Disclosure of utility model
The application provides a motor brake control system which is used for solving the problems existing in the background technology.
The application provides a motor braking control system, comprising: the device comprises a main control chip, a first relay, a second relay, a third relay, a first resistor, a second resistor, a third resistor and a motor;
the motor is provided with a first winding port, a second winding port and a third winding port;
One end of a coil of the first relay is connected with a first power supply, and the other end of the coil of the first relay is connected with a brake signal output end of the main control chip; one end of a coil of the second relay is connected with a second power supply, and the other end of the coil of the second relay is connected with a brake signal output end of the main control chip; one end of a coil of the third relay is connected with a third power supply, and the other end of the coil of the third relay is connected with a brake signal output end of the main control chip;
The first winding port, the contact of the first relay, the first resistor and the first grounding end are sequentially connected in series;
The second winding port, the contact of the second relay, the second resistor and the second grounding end are sequentially connected in series;
The third winding port, the contact of the third relay, the third resistor and the third grounding end are sequentially connected in series.
Optionally, the first resistor, the second resistor and the third resistor are sliding varistors.
Optionally, the first resistor, the second resistor and the third resistor are recorded as a group of resistors, and the motor brake control system is provided with a plurality of groups of resistors; for the same group, the resistance values of the resistors are the same, and for different groups, the resistance values of the resistors are different;
In each group of resistors, the first winding port, the contact of the first relay, the first resistor and the first grounding end are sequentially connected in series; the second winding port, the contact of the second relay, the second resistor and the second grounding end are sequentially connected in series; the third winding port, the contact of the third relay, the third resistor and the third grounding end are sequentially connected in series.
Optionally, the motor brake control system is further provided with a first temperature sensor, a second temperature sensor and a third temperature sensor; the first temperature sensor is disposed at a first predetermined distance from the first resistor, the second temperature sensor is disposed at a second predetermined distance from the second resistor, and the third temperature sensor is disposed at a third predetermined distance from the third resistor; the first temperature sensor, the second temperature sensor and the third temperature sensor are respectively connected with the main control chip in a signal mode, and the first temperature sensor, the second temperature sensor and the third temperature sensor are electrically connected with a fourth grounding end.
Optionally, the motor stopping control system further comprises a cooling fan, wherein the cooling fan is arranged at a position close to the first resistor, the second resistor and the third resistor, and the cooling fan is in signal connection with the main control chip.
Optionally, the motor brake control system further comprises a first current sensor, a second current sensor and a third current sensor; the first current sensor is electrically connected between the contact of the first relay and the first resistor, the second current sensor is electrically connected between the contact of the second relay and the second resistor, and the third current sensor is electrically connected between the contact of the third relay and the third resistor; the first current sensor, the second current sensor and the third current sensor are all electrically connected with a fifth grounding terminal.
Optionally, the first grounding end, the second grounding end and the third grounding end are the same grounding end and are marked as a common grounding end, and then the first resistor, the second resistor and the third resistor are electrically connected to the same wiring terminal at one side close to the common grounding end; and a fourth current sensor is electrically connected between the same wiring terminal and the common grounding terminal, and the fourth current sensor is also in signal connection with the main control chip.
The motor braking control system provided by the application comprises a main control chip, a first relay, a second relay, a third relay, a first resistor, a second resistor, a third resistor and a motor. The first resistor, the second resistor and the third resistor are used for consuming counter electromotive force generated by the motor, and the magnitude of the resistance value is controlled according to the voltage of the motor and the magnitude of the power supply, so that the braking time of the motor is shortened. The motor brake control system of the application has simple structure, the used elements are common, the maintenance is simple even if the motor brake control system fails, and the motor brake control system can be maintained in time by a user, thereby reducing the maintenance cost. Further, the application realizes the stop of the motor by adding the resistor, consumes the counter potential of the motor, and can consume the counter potential generated by the motor by adding the first resistor, the second resistor and the third resistor, thereby reducing the stop time, reducing the damage of counter electromotive force to the bridge circuit power tube or other electronic elements and improving the stability of the system. Compared with the prior art, the additional hardware and control equipment are added, so that the maintenance cost of the system is increased, and the instability of the system is also increased; the application can be regulated according to different motors and different power supplies, and improves the reliability and stability of the whole system.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic circuit diagram of a motor brake control system according to an embodiment of the present application;
FIG. 2 is a circuit diagram of a motor brake control system according to another embodiment of the present application;
FIG. 3 is a circuit diagram of a motor brake control system according to yet another embodiment of the present application;
fig. 4 is a circuit diagram of a motor brake control system according to still another embodiment of the present application.
In the figure: the main control chip 1, the first relay 2, the second relay 3, the third relay 4, the first resistor 5, the second resistor 6, the third resistor 7 and the first winding port 8; a second winding port 9; a third winding port 10; a first ground terminal 11; a second ground terminal 12; a third ground terminal 13; a first power supply 14; a second power supply 15; a third power supply 16; a first temperature sensor 17; a second temperature sensor 18; a third temperature sensor 19; a first current sensor 20; a second current sensor 21; a third current sensor 22; a fourth current sensor 23; a heat radiation fan 24; a common ground 25; a slide rheostat 26.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are also within the scope of the application. In addition, the embodiments of the present application and the features of the embodiments may be combined with each other without collision. The application will be described in detail below with reference to the drawings in connection with embodiments.
Fig. 1 is a schematic diagram of a motor brake control system according to an example of the present application. As shown in fig. 1, the system of the present application includes: the main control chip 1, the first relay 2, the second relay 3, the third relay 4, the first resistor 5, the second resistor 6, the third resistor 7 and the motor;
the motor is provided with a first winding port 8, a second winding port 9 and a third winding port 10;
One end of a coil of the first relay 2 is connected with a first power supply 14, and the other end of the coil of the first relay is connected with a brake signal output end of the main control chip 1; one end of a coil of the second relay 3 is connected with a second power supply 15, and the other end of the coil of the second relay is connected with a brake signal output end of the main control chip 1; one end of a coil of the third relay 4 is connected with a third power supply 16, and the other end of the coil of the third relay is connected with a brake signal output end of the main control chip 1;
The first winding port 8, the contact of the first relay 2, the first resistor 5 and the first grounding terminal 11 are sequentially connected in series;
the second winding port 9, the contact of the second relay 3, the second resistor 6 and the second grounding terminal 12 are sequentially connected in series;
The third winding port 10, the contact of the third relay 4, the third resistor 7 and the third ground terminal 13 are sequentially connected in series.
The main control chip 1 is generally installed on a terminal device and is used for generating a brake signal and simultaneously transmitting the brake signal to the coil of the first relay 2, the coil of the second relay 3 and the coil of the third relay 4.
The brake signal may be a level signal, for example, a high level signal or a low level signal, and since one end of the coil of the three relays is connected to a power source, when the other end of the coil of the relay is at a low level, the coil is powered, so the embodiment of the application will be described by taking the low level signal as an example.
The contacts of the first relay 2, the second relay 3 and the third relay 4 are all normally open contacts.
After the coils of the first relay 2, the second relay 3 and the third relay 4 receive the low-level signals, the corresponding contacts of the first relay 2, the second relay 3 and the third relay 4 are closed after the coils are electrified.
Further, after the coil of the first relay 2 is powered on, the normally open contact of the first relay 2 is closed, so that the first resistor 5 is conducted with the first winding port 8 of the motor; the second relay 3 and the third relay 4 respectively control the second resistor 6 and the third resistor 7 to be respectively conducted with the second winding port 9 and the third winding port 10 of the motor through normally open contacts.
The first power supply 14, the second power supply 15 and the third power supply 16 may be the same power supply or may be different power supplies. The sizes of the first power source 14, the second power source 15 and the third power source 16 can be determined according to actual requirements.
The first grounding terminal 11, the second grounding terminal 12 and the third grounding terminal 13 may be different grounding terminals or the same grounding terminal. In fig. 2, three ground terminals are shown as an example of a circuit diagram with the same ground terminal.
The first resistor 5, the second resistor 6 and the third resistor 7 are load resistors and are used for consuming counter electromotive force generated by inertial running after the motor is powered off so as to accelerate braking of the motor.
Further, when the resistance is small, the current is large, the back electromotive force consumption is fast, the braking is fast, when the resistance is large, the current is small, the back electromotive force consumption is slow, and the braking is slow. When the back electromotive force consumption is completed, the motor stops running.
The working process of the motor brake control system is as follows:
1. Calculating the resistance values of the first resistor 5, the second resistor 6 and the third resistor 7 according to the voltage and the current of the motor and the preset stopping time; and connecting the determined first resistor 5, second resistor 6 and third resistor 7 in the above-mentioned circuit;
2. The main control chip 1 sends a brake signal, namely the other end of the coil of the relay is a low-level signal, and at the moment, the voltage at one end of the coil of the first relay 2, the voltage at the other end of the coil of the second relay 3 and the voltage at one end of the coil of the third relay 4 are high, and the voltage at the other end of the coil is low, so that the coil is electrified;
3. After the coils of the first relay 2, the second relay 3 and the third relay 4 are powered on, the contacts of the first relay 2, the contacts of the second relay 3 and the contacts of the third relay 4 are closed;
4. At this time, the first winding port 8, the contact of the first relay 2, the first resistor 5, and the first ground terminal 11 form a first path; similarly, the second winding port 9, the contact of the second relay 3, the second resistor 6 and the second ground terminal 12 form a second path, and the third winding port 10, the contact of the third relay 4, the third resistor 7 and the third ground terminal 13 form a third path;
5. After the first resistor 5, the second resistor 6 and the third resistor 7 are electrified, the back electromotive force generated by inertia after the power-off of the motor is consumed through three paths, and when the back electromotive force is consumed, the motor stops running.
The motor braking control system provided by the application comprises a main control chip 1, a first relay 2, a second relay 3, a third relay 4, a first resistor 5, a second resistor 6, a third resistor 7 and a motor. The first resistor 5, the second resistor 6 and the third resistor 7 are used for consuming counter electromotive force generated by the motor, and the magnitude of the resistance value is controlled according to the voltage of the motor and the magnitude of the power supply, so that the braking time of the motor is shortened. The motor brake control system of the application has simple structure, the used elements are common, the maintenance is simple even if the motor brake control system fails, and the motor brake control system can be maintained in time by a user, thereby reducing the maintenance cost. Further, the application realizes the stop of the motor by adding the resistor, consumes the counter potential of the motor, and can consume the counter potential generated by the motor by adding the first resistor 5, the second resistor 6 and the third resistor 7, thereby reducing the stop time, reducing the damage of counter electromotive force to the bridge circuit power tube or other electronic elements and improving the stability of the system. Compared with the prior art, the additional hardware and control equipment are added, so that the maintenance cost of the system is increased, and the instability of the system is also increased; the application can be regulated according to different motors and different power supplies, and improves the reliability and stability of the whole system.
Optionally, referring to fig. 4, the first resistor 5, the second resistor 6 and the third resistor 7 are sliding varistors 26.
The first resistor 5, the second resistor 6 and the third resistor 7 are arranged as a sliding rheostat 26, and the positions of sliding sheets of the sliding rheostat 26 can be adjusted by different currents according to different voltages of the motor, so that the resistance value of the resistor in the adjusting circuit is achieved, and the motor can be adapted to braking of different motors.
For example, when it is necessary to reduce the motor stop time, the slide position of the slide rheostat 26 is adjusted to a position where the resistance connected to the circuit is small, so that the counter potential generated by the motor can be consumed as soon as possible through the first resistance 5, the second resistance 6 and the third resistance 7.
Further, the position of the slide rheostat 26 can be finely adjusted according to specific requirements, so that more accurate stop time control is realized, and the requirements of different stop times are met.
Optionally, the first resistor 5, the second resistor 6 and the third resistor 7 are marked as a group of resistors, and the motor brake control system is provided with a plurality of groups of resistors; for the same group, the resistance values of the resistors are the same, and for different groups, the resistance values of the resistors are different;
In each group of resistors, the first winding port 8, the contact of the first relay 2, the first resistor 5 and the first grounding terminal 11 are sequentially connected in series; the second winding port 9, the contact of the second relay 3, the second resistor 6 and the second grounding terminal 12 are sequentially connected in series; the third winding port 10, the contact of the third relay 4, the third resistor 7 and the third ground terminal 13 are sequentially connected in series.
Different resistors can be replaced according to the voltage and the current of the motor, different groups of resistors are replaced according to the requirements in the actual use process, and resistance values with different resistance values are selected, for example, the resistor with small resistance value is selected when the stop time is required to be reduced, and the resistor with larger resistance value is selected conversely.
Further, through the optional multiunit resistance that sets up, can satisfy the demand under the different scenes, only need select suitable resistance, can control the braking time.
In addition, this method may have the same function as the slide rheostat 26 described above, and one of the connection methods may be selected according to the actual situation in actual use.
Optionally, referring to fig. 3, the motor brake control system is further provided with a first temperature sensor 17, a second temperature sensor 18 and a third temperature sensor 19; the first temperature sensor 17 is arranged at a first predetermined distance from the first resistor 5, the second temperature sensor 18 is arranged at a second predetermined distance from the second resistor 6, and the third temperature sensor 19 is arranged at a third predetermined distance from the third resistor 7; the first temperature sensor 17, the second temperature sensor 18 and the third temperature sensor 19 are respectively connected with the main control chip 1 through signals, and the first temperature sensor 17, the second temperature sensor 18 and the third temperature sensor 19 are electrically connected with a fourth grounding end.
The first preset distance, the second preset distance and the third preset distance can be set according to the actual space condition of the circuit board, the three preset distances can be equal to each other or different from each other, but the three temperature sensors cannot be far away from the three resistors, and the three temperature sensors can respectively detect the temperatures of the three resistors.
The three temperature sensors are used for obtaining current temperature values of the three resistors in real time, and the main control chip 1 can obtain temperature information of the current resistor in the circuit in real time through signal connection with the temperature sensors, so that damage to the resistor caused by overhigh temperature of the resistor is prevented.
Further, when the temperature of the circuit is too high, the system sends out an alarm signal, and the staff can adjust the alarm signal in time, so that the adaptability and the flexibility of the circuit are improved.
For example, the resistance of the resistor in the circuit can be adapted to be increased to reduce the current in the circuit and thereby reduce the temperature of the resistor in the circuit.
Optionally, referring to fig. 3, the motor brake control system further includes a cooling fan 24, where the cooling fan 24 is disposed near the first resistor 5, the second resistor 6, and the third resistor 7, and the cooling fan 24 is in signal connection with the main control chip 1.
The main control chip 1 obtains temperature information of electronic devices in the circuit in real time through the three temperature sensors or other temperature sensors configured for the circuit, if the temperature of the resistor or other devices is too high and exceeds a set value, the main control chip 1 sends a signal to the cooling fan 24, the cooling fan 24 is started to cool, and when the temperature is reduced below the set value, the main control chip 1 stops sending the signal to the cooling fan 24 to stop working.
Further, by arranging the heat dissipating fan 24 at a position close to the resistor or other devices, heat dissipation and discharge can be accelerated, the temperature of the circuit can be effectively reduced, the heat dissipation effect can be improved, safety problems caused by overheat of the circuit can be effectively prevented, and the safety of the circuit can be improved.
Optionally, as shown in fig. 3, the motor brake control system further includes a first current sensor 20, a second current sensor 21, and a third current sensor 22; the first current sensor 20 is electrically connected between the contact of the first relay 2 and the first resistor 5, the second current sensor 21 is electrically connected between the contact of the second relay 3 and the second resistor 6, and the third current sensor 22 is electrically connected between the contact of the third relay 4 and the third resistor 7; the first current sensor 20, the second current sensor 21 and the third current sensor 22 are all electrically connected to a fifth ground.
The first current sensor 20 is used for detecting the current of the branch where the first resistor 5 is located, the second current sensor 21 is used for detecting the current of the branch where the second resistor 6 is located, and the third current sensor 22 is used for detecting the current of the branch where the third resistor 7 is located.
Further, when the current value detected by the current sensor exceeds a set value, the system gives an alarm, and when the current value is too high, the main control chip 1 can power off the coil of the relay by sending a high-level signal, so that the contact of the relay is disconnected, and the corresponding resistor is disconnected.
Particularly, through the connection of the current sensor, the current conditions of different positions in the circuit can be monitored in real time, the overload and overheat phenomena can be prevented, the safety and the stability of the circuit can be improved, and the risks of faults and damage can be reduced.
Optionally, the first ground terminal 11, the second ground terminal 12, and the third ground terminal 13 are the same ground terminal, denoted as a common ground terminal 25, and the first resistor 5, the second resistor 6, and the third resistor 7 are electrically connected to the same terminal on a side close to the common ground terminal 25; a fourth current sensor 23 is electrically connected between the same terminal and the common ground 25, and the fourth current sensor 23 is also in signal connection with the main control chip 1.
The fourth current sensor 23 obtains current values of the first resistor 5, the second resistor 6 and the third resistor 7 on a trunk, and the main control chip 1 obtains current information between the terminal and the common ground terminal 25 through connection with the fourth current sensor 23.
Further, by monitoring the current in real time and taking measures according to the situation, the safety and stability of the circuit can be improved, and the risks of faults and damage can be reduced.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Finally, it should be noted that what is not described in the technical solution of the present application can be implemented using the prior art. In addition, the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will appreciate that; the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (7)
1. The motor braking control system is characterized by comprising a main control chip, a first relay, a second relay, a third relay, a first resistor, a second resistor, a third resistor and a motor;
the motor is provided with a first winding port, a second winding port and a third winding port;
One end of a coil of the first relay is connected with a first power supply, and the other end of the coil of the first relay is connected with a brake signal output end of the main control chip; one end of a coil of the second relay is connected with a second power supply, and the other end of the coil of the second relay is connected with a brake signal output end of the main control chip; one end of a coil of the third relay is connected with a third power supply, and the other end of the coil of the third relay is connected with a brake signal output end of the main control chip;
The first winding port, the contact of the first relay, the first resistor and the first grounding end are sequentially connected in series;
The second winding port, the contact of the second relay, the second resistor and the second grounding end are sequentially connected in series;
The third winding port, the contact of the third relay, the third resistor and the third grounding end are sequentially connected in series.
2. The motor brake control system of claim 1, wherein the first resistor, the second resistor, and the third resistor are slide varistors.
3. The motor brake control system of claim 1, wherein the first resistor, the second resistor, and the third resistor are recorded as a set of resistors, and the motor brake control system is provided with a plurality of sets of resistors; the resistances of the resistors are the same in the same group, and the resistances of the resistors are different in different groups.
4. The motor brake control system of claim 2, further comprising a first temperature sensor, a second temperature sensor, and a third temperature sensor; the first temperature sensor is disposed at a first predetermined distance from the first resistor, the second temperature sensor is disposed at a second predetermined distance from the second resistor, and the third temperature sensor is disposed at a third predetermined distance from the third resistor; the first temperature sensor, the second temperature sensor and the third temperature sensor are respectively connected with the main control chip in a signal mode, and the first temperature sensor, the second temperature sensor and the third temperature sensor are electrically connected with the fourth grounding end.
5. The motor brake control system of claim 4, further comprising a cooling fan disposed proximate to the first resistor, the second resistor, and the third resistor, the cooling fan in signal communication with the main control chip.
6. The motor brake control system of claim 4, further comprising a first current sensor, a second current sensor, and a third current sensor; the first current sensor is electrically connected between the contact of the first relay and the first resistor, the second current sensor is electrically connected between the contact of the second relay and the second resistor, and the third current sensor is electrically connected between the contact of the third relay and the third resistor; the first current sensor, the second current sensor and the third current sensor are all electrically connected with a fifth grounding terminal.
7. The motor brake control system according to any one of claims 1 to 6, wherein the first ground, the second ground, and the third ground are the same ground, denoted as a common ground, and the first resistor, the second resistor, and the third resistor are electrically connected as the same terminal on a side close to the common ground; and a fourth current sensor is electrically connected between the same wiring terminal and the common grounding terminal, and the fourth current sensor is also in signal connection with the main control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322932181.9U CN221202383U (en) | 2023-10-31 | 2023-10-31 | Motor braking control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322932181.9U CN221202383U (en) | 2023-10-31 | 2023-10-31 | Motor braking control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221202383U true CN221202383U (en) | 2024-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322932181.9U Active CN221202383U (en) | 2023-10-31 | 2023-10-31 | Motor braking control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221202383U (en) |
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- 2023-10-31 CN CN202322932181.9U patent/CN221202383U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |