CN113883560B - Push rod motor locked-rotor state monitoring method, push rod mechanism and range hood - Google Patents
Push rod motor locked-rotor state monitoring method, push rod mechanism and range hood Download PDFInfo
- Publication number
- CN113883560B CN113883560B CN202111173876.2A CN202111173876A CN113883560B CN 113883560 B CN113883560 B CN 113883560B CN 202111173876 A CN202111173876 A CN 202111173876A CN 113883560 B CN113883560 B CN 113883560B
- Authority
- CN
- China
- Prior art keywords
- motor
- worm
- push rod
- stage
- output 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.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2078—Removing cooking fumes movable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gear Transmission (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a method for monitoring the locked-rotor state of a push rod motor, a push rod mechanism and a range hood.A forward movement speed of a first-stage worm gear when pushing a pushed object and an output torque of a first motor driving the first-stage worm gear to move are respectively obtained by arranging two sets of motors, and then the movement state of the push rod mechanism is judged based on the movement speed of the worm and the output torque of the first motor, and whether the first motor is locked-rotor is judged; when the first motor is judged to be locked, on the basis of not increasing current, the second motor is controlled to be started, the second motor drives the second-stage worm gear to move, the second-stage worm gear continues to push the pushed object to move along the original direction, the original transmission of the first-stage worm gear is switched into the transmission of the second-stage worm gear with a larger transmission ratio, the output torque is increased, the thrust of the worm to the pushed object and the movement speed of the worm are increased, and the problem that the push rod motor is locked is solved through the automatic adjustment of the worm to the external thrust.
Description
Technical Field
The invention relates to the field of range hoods, in particular to a method for monitoring a locked-rotor state of a push rod motor, a push rod mechanism and a range hood.
Background
When the range hood works, the oil smoke is sucked and exhausted by the centrifugal fan arranged in the range hood. The centrifugal fan in the range hood comprises a worm wheel, an impeller arranged in the worm wheel and a motor driving the impeller to rotate, wherein a plurality of blades are arranged on the impeller. When the motor drives the impeller to rotate, the pressure at the center of the impeller is reduced and until the pressure is lower than atmospheric pressure, oil smoke below the range hood is sucked into the fan under the action of the pressure difference, then is collected by the worm wheel after being accelerated by the fan, and is guided to be discharged outdoors.
In order to meet the actual operation process of the range hood, different push rod mechanisms are usually installed on the range hood, such as a european butterfly wing ring suction plate push rod mechanism and a near suction range hood panel push rod mechanism. Through the push rod mechanisms, the oil suction machine can have diversified motions and functions. However, in the actual working process of these push rod mechanisms, due to the influence of factors such as the internal friction force and the external resistance of the mechanism, these push rod mechanisms may have abnormal situations such as locked-rotor, difficult push rod or difficult tight closure, and finally cause the push rod mechanism to have abnormal working, which affects the normal operation of the range hood.
The Chinese patent application CN112688619A discloses a control method for motor locked rotor protection, which combines the detection of the rotating speed, current and temperature of the motor to effectively and accurately detect and judge different working states of the motor such as slight locked rotor, moderate locked rotor and severe locked rotor, so as to achieve the purpose of improving the accuracy of motor control. However, in the actual operation process of the range hood, compared with the motor current corresponding to the push rod mechanism in the normal state of non-locked rotation, the difference between the motor current of the push rod mechanism in the locked rotation and the motor current of the push rod mechanism in the normal state of non-locked rotation is small, and it is difficult to judge whether the push rod mechanism has the locked rotation problem by comparing the difference between the motor currents.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a method for monitoring the locked-rotor state of a push rod motor in view of the above prior art.
The second technical problem to be solved by the present invention is to provide a push rod mechanism for implementing the method for monitoring the locked-rotor state of the push rod motor.
The third technical problem to be solved by the invention is to provide a range hood applying the push rod mechanism.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the method for monitoring the locked-rotor state of the push rod motor is characterized by comprising the following steps of:
step S1, a first motor of the push rod mechanism is started to operate in a forward direction, and the first motor drives a first-stage worm gear of the push rod mechanism to perform forward motion for pushing a pushed object; the first-stage worm gear comprises a first-stage worm wheel and a worm for pushing a pushed object, and the worm is meshed with the first-stage worm wheel;
step S2, acquiring a forward movement speed of the worm, and performing a determination process according to the acquired forward movement speed:
when the forward movement speed of the worm is greater than a first preset movement speed value, judging that the first motor moves normally, and enabling the first motor to continue to operate in the forward direction; otherwise, go to step S3;
step S3, acquiring an output torque of a first motor shaft of the first motor, and performing a determination process according to the acquired output torque:
when the output torque is larger than the first preset output torque, judging that the first motor is locked, stopping the first motor, and turning to the step S4; otherwise, judging that the first motor operates normally, and enabling the first motor to continue to operate positively;
step S4, a second motor of the push rod mechanism is started to operate in the forward direction, the second motor drives a secondary worm gear of the push rod mechanism to perform forward motion for pushing a pushed object, and the step S5 is carried out; the secondary worm gear comprises a secondary worm wheel and a worm, and the worm is meshed with the secondary worm wheel; moreover, the first-stage worm gear and the second-stage worm gear share the same worm;
step S5, the second motor is stopped, the first motor is restarted to run forward, and the first motor drives the first-stage worm gear of the push rod mechanism to run forward to push the pushed object, and the step S6 is carried out;
step S6, acquiring a forward movement speed of the worm, and making a determination process according to the acquired forward movement speed:
when the forward movement speed of the worm is greater than a second preset movement speed value, judging that the first motor normally operates, and enabling the first motor to continue to operate in the forward direction; otherwise, go to step S7;
step S7, acquiring an output torque of the first motor shaft of the first motor, and performing a determination process according to the acquired output torque:
when the output torque is larger than a second preset output torque, the first motor is powered off, and the operation of the first motor is stopped; otherwise, the first motor is enabled to continue to operate in the forward direction until the worm pushes the pushed object to the target position.
Further, in the method for monitoring the locked-rotor state of the push rod motor, the forward movement speed of the worm is the average speed of the worm when pushing the pushed object to move forward
In the method for monitoring the locked-rotor state of the push rod motor, the transmission ratio of the first-stage worm gear is greater than that of the second-stage worm gear; wherein, the transmission ratio of the first-stage worm gear is marked as L 1 (ii) a The gear ratio of the two-stage worm gear is marked L 2 ：
L 1 ＝Z 0 /Z 1 ；L 1 ＝Z 0 /Z 2 ；
Wherein, Z 0 Number of worm teeth, Z, in first-order worm gears 1 The number of teeth of the first-level worm wheel in the first-level worm gear, Z 2 The number of teeth of the second-level worm wheel in the second-level worm wheel and worm is the same as that of the first-level worm wheel and worm and the second-level worm wheel and worm.
Further, in the monitoring method for the locked-rotor state of the push rod motor, the first preset motion speed value is equal to the second preset motion speed value, and the first preset output torque is equal to the second preset output torque.
Optionally, in the method for monitoring the locked-rotor state of the push rod motor, the pushed object is a ring suction plate or a lifting plate.
The technical scheme adopted by the invention for solving the second technical problem is as follows: the push rod mechanism for realizing the method for monitoring the locked-rotor state of the push rod motor is characterized by comprising the following steps of:
a first motor having a first motor shaft;
a second motor having a second motor shaft;
the primary worm gear is in transmission connection with a first motor shaft of the first motor;
the second-stage worm gear is in transmission connection with a second motor shaft of the second motor;
the worm can be meshed with the first-stage worm wheel and the second-stage worm wheel respectively; the worm is meshed with the secondary worm wheel to form a secondary worm wheel and a secondary worm;
the speed detection device at least detects the forward movement speed of the worm when pushing the pushed object;
the controller is respectively connected with the first motor, the second motor and the speed detection device; the controller processes according to the positive movement speed of the worm to form a command for correspondingly controlling the first motor or/and a command for controlling the second motor; and forming a command corresponding to the control of the first motor or/and a command corresponding to the control of the second motor according to the output torque of the first motor shaft of the first motor.
Optionally, in the push rod mechanism, the speed detecting device is a speed sensor; alternatively, the speed detection means comprises a timer and a distance sensor for detecting at least the forward movement displacement of the worm.
The technical scheme adopted by the invention for solving the third technical problem is as follows: the range hood is characterized in that the push rod mechanism is applied.
Compared with the prior art, the invention has the advantages that:
firstly, two sets of motors are arranged, then the forward movement speed of a first-stage worm gear of the push rod mechanism when pushing a pushed object and the output torque of a first motor driving the first-stage worm gear to move are respectively obtained, and then the movement state of the push rod mechanism is judged based on the movement speed of the worm and the output torque of the first motor, so that whether the stalling condition of the push rod motor (namely the first motor) occurs or not is accurately judged;
secondly, when the invention judges that the first motor has the locked rotor, on the basis of not increasing the current, the second motor of the push rod mechanism is controlled to start, the second motor drives the second-stage worm gear to move, the second-stage worm gear continuously pushes the pushed object to move along the original direction, the original transmission of the first-stage worm gear is switched into the transmission of the second-stage worm gear with larger transmission ratio, the output torque is increased by changing the transmission ratio of the worm gear, the thrust of the worm to the pushed object and the movement speed of the worm are increased, and the problem of the locked rotor of the push rod motor is solved by the automatic adjustment of the external thrust of the worm.
Drawings
Fig. 1 is a schematic flow chart of a monitoring method for a locked-rotor state of a push rod motor in an embodiment of the invention;
FIG. 2 is a schematic view of a pusher mechanism in an embodiment of the present invention;
FIG. 3 is a top plan view of the pusher mechanism of FIG. 2;
FIG. 4 is a schematic view of the connection between the main components of the pusher mechanism according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a range hood according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following examples of the drawings.
The embodiment provides a method for monitoring the locked-rotor state of a push rod motor of a push rod mechanism on a range hood, wherein the push rod mechanism comprises two motors and two transmission worm gears, the two motors are respectively a first motor and a second motor, the two transmission worm gears are respectively a first-level worm gear and a second-level worm gear, the first-level worm gear comprises a first-level worm gear and a worm for pushing a pushed object, and the worm is meshed with the first-level worm gear; the second-level worm wheel and the second-level worm rod comprise a second-level worm wheel and a worm, and the worm is meshed with the second-level worm wheel; namely, the first-stage worm gear and the second-stage worm gear share the same worm, and the pushing object of the push rod mechanism is a lifting plate. Specifically, referring to fig. 1, the method for monitoring the locked-rotor state of the push rod motor in the embodiment includes the following steps S1 to S7:
step S1, a first motor of the push rod mechanism is started to operate in a forward direction, and the first motor drives a first-stage worm gear of the push rod mechanism to perform forward motion for pushing a pushed object; the first-stage worm gear comprises a first-stage worm wheel and a worm for pushing a pushed object, and the worm is meshed with the first-stage worm wheel;
step S2, acquiring the positive movement speed V of the worm N, 1 And according to the obtained forward movement speed V N, 1 Judgment processing is made:
when the positive movement speed V of the worm N, 1 Greater than a first predetermined value of motion velocity V 1 When it is, it is judged thatOne motor moves normally, the first motor continues to operate in the positive direction, and the worm continues to move in the positive direction at the moment to push the lifting plate 9 to descend; otherwise, go to step S3; the positive motion of the worm refers to the motion direction corresponding to the worm when the worm pushes the lifting plate to descend, the positive operation of the first motor is the rotation direction corresponding to the first motor when the positive motion of the worm is maintained, and the obtained positive motion speed V of the worm is obtained here N, 1 The average speed of the worm in the forward motion process is taken as the speed; i.e. the forward movement velocity V N, 1 In particular to the displacement S of the worm positively moved to the current position 1 And the required time T 1 Ratio therebetween, i.e. V N, 1 ＝S 1 /T 1 ；
Step S3, obtaining an output torque R of a first motor shaft of the first motor 1 And according to the obtained output torque R 1 Judgment processing is made:
when the output torque R 1 Greater than a first predetermined output torque R TH1 If so, judging that the first motor is locked, stopping the first motor, and turning to the step S4; otherwise, judging that the first motor operates normally, and enabling the first motor to continue to operate in the forward direction, wherein the worm continues to move in the forward direction at the moment, and the lifting plate is pushed to continue to descend;
step S4, a second motor of the push rod mechanism is started to operate in the forward direction, the second motor drives a secondary worm gear of the push rod mechanism to perform forward motion for pushing a pushed object, and the step S5 is executed; in the embodiment, the transmission ratio of the first-stage worm gear is larger than that of the second-stage worm gear; the gear ratio of the first-stage worm gear is marked as L 1 (ii) a The gear ratio of the two-stage worm gear is marked L 2 ：
L 1 ＝Z 0 /Z 1 ；L 1 ＝Z 0 /Z 2 ；
Wherein Z is 0 Number of worm teeth, Z, in first-order worm gears 1 The number of teeth of the first-level worm wheel in the first-level worm gear and worm 2 The number of teeth of a second-level worm wheel in the second-level worm wheel and worm is the same as that of the first-level worm wheel and worm;
step S5, the second motor is stopped, the first motor is restarted to operate in the forward direction, and the first motor drives the first-stage worm gear of the push rod mechanism to move in the forward direction to push the pushed object, so as to push the lifting plate to descend, and the step S6 is carried out;
step S6, the positive movement speed V of the worm is obtained again N, 2 And according to the obtained forward motion speed V N, 2 Judgment processing is made:
when the positive movement speed V of the worm N, 2 Greater than a second preset value of motion velocity V 2 When the first motor is normally operated, the first motor is enabled to continuously operate in the forward direction, and the worm continuously moves in the forward direction at the moment to push the lifting plate to continuously descend; otherwise, go to step S7; wherein the positive movement speed V of the worm is obtained here N, 2 Is the average speed of the worm during the forward movement, i.e. the forward movement speed V N, 2 In particular to the displacement S of the positive movement of the worm to the current position 2 And the required time T 2 Ratio therebetween, i.e. V N, 2 ＝S 2 /T 2 ；S 2 >S 1 ，T 2 >T 1 (ii) a Wherein the first preset motion velocity value V 1 And a second predetermined value of the motion velocity V 2 Equal;
step S7, obtaining an output torque R of a first motor shaft of a first motor 2 And according to the obtained output torque R 2 Judgment processing is made:
when the output torque R 2 Greater than a second predetermined output torque R TH2 When the first motor is powered off, the first motor stops running; otherwise, the first motor continues to operate in the forward direction until the worm pushes the corresponding pushed object (i.e. the lifting plate) to move to the target position. That is, in determining the output torque R 2 Less than a second predetermined output torque R TH2 And the worm descends the lifting plate to a preset target position by continuously maintaining the forward running of the first motor. Wherein the first preset output torque R TH1 And a second predetermined output torque R TH2 Equal;
of course, according to actual needs, the object to be pushed by the worm may be set as a ring suction plate, that is, the ring suction plate becomes the object to be pushed. In addition, when the first motor is judged to be locked, namely the push rod motor is in a locked state, alarm prompt is required.
The embodiment also provides a push rod mechanism for realizing the method for monitoring the locked-rotor state of the push rod motor. Specifically, referring to fig. 2 to 4, the push rod mechanism of this embodiment includes a first motor 1, a second motor 2, a primary worm wheel 3, a secondary worm wheel 5, a worm 5, a speed detection device 6, a controller 7, and a torque detection device 8 that detects an output torque of a motor shaft of the first motor, the first motor 1 has a first motor shaft that drives the primary worm wheel 3 to rotate, the second motor 2 has a second motor shaft that drives the secondary worm wheel 5 to rotate, and the worm 5 can be engaged with the primary worm wheel 3 and the secondary worm wheel 4, respectively; the worm 5 is meshed with the first-level worm wheel 3 to form a first-level worm wheel and worm, and the worm 5 is meshed with the second-level worm wheel 4 to form a second-level worm wheel and worm; the worm 5 is used for pushing a pushed object, for example, the pushed object is set as a lifting plate, and the speed detection device 6 is used for detecting at least the forward movement speed when the worm 5 pushes the pushed object; the controller 7 is respectively connected with the first motor 1, the second motor 2, the speed detection device 6 and the moment detection device 8; the controller 7 processes according to the forward movement speed of the worm 5 to form a command for correspondingly controlling the first motor 1 or/and a command for controlling the second motor 2; and forming a command corresponding to the control of the first motor 1 or/and a command corresponding to the control of the second motor 2 according to the output torque of the motor shaft of the first motor 1. A certain spacing distance D is arranged between the first-level worm wheel 3 and the second-level worm wheel 4, so that the two worm wheels cannot rub with each other when rotating.
It should be noted that the speed detection device 6 may be a speed sensor provided on the worm 5, and it is needless to say that the speed detection device 6 may include a timer and a distance sensor that detects at least a forward movement displacement when the worm 5 pushes the pushed object, as necessary. The speed detecting means 6 in this embodiment is in the form of a timer in combination with a distance sensor 61 arranged on the screw. The timer may be provided separately or may be integrated with the controller 7.
Of course, according to actual needs, the screw rod can be replaced, namely, the pushing object of the screw rod is set to be the annular suction plate.
Referring to fig. 5, the embodiment further provides a range hood, which is applied with the above-mentioned push rod mechanism.
Claims (8)
1. The method for monitoring the locked-rotor state of the push rod motor is characterized by comprising the following steps of:
step S1, a first motor of the push rod mechanism is started to operate in the forward direction, and the first motor drives a first-stage worm gear of the push rod mechanism to move in the forward direction to push a pushed object; the first-stage worm and gear comprises a first-stage worm wheel and a worm for pushing a pushed object, and the worm is meshed with the first-stage worm wheel;
step S2, acquiring a forward movement speed of the worm, and performing a determination process according to the acquired forward movement speed:
when the forward movement speed of the worm is greater than a first preset movement speed value, judging that the first motor moves normally, and enabling the first motor to continue to operate in the forward direction; otherwise, go to step S3;
step S3, acquiring an output torque of the first motor shaft of the first motor, and performing a determination process according to the acquired output torque:
when the output torque is larger than the first preset output torque, judging that the first motor is locked, stopping the first motor, and turning to the step S4; otherwise, judging that the first motor operates normally, and enabling the first motor to continue to operate positively;
step S4, a second motor of the push rod mechanism is started to operate in the forward direction, the second motor drives a secondary worm gear of the push rod mechanism to perform forward motion for pushing a pushed object, and the step S5 is carried out; the secondary worm gear comprises a secondary worm wheel and a worm, and the worm is meshed with the secondary worm wheel; moreover, the first-stage worm gear and the second-stage worm gear share the same worm;
step S5, the second motor is stopped, the first motor is restarted to run forward, and the first motor drives the first-stage worm gear of the push rod mechanism to run forward to push the pushed object, and the step S6 is carried out;
step S6, acquiring a forward movement speed of the worm, and performing a determination process according to the acquired forward movement speed:
when the forward movement speed of the worm is greater than a second preset movement speed value, judging that the first motor normally operates, and enabling the first motor to continue to operate in the forward direction; otherwise, go to step S7;
step S7, acquiring an output torque of a first motor shaft of the first motor, and performing a determination process according to the acquired output torque:
when the output torque is larger than a second preset output torque, the first motor is powered off, and the first motor stops running; otherwise, the first motor is enabled to continue to operate in the forward direction until the worm pushes the pushed object to the target position.
2. The method for monitoring the locked-rotor state of the push rod motor according to claim 1, wherein the forward moving speed of the worm is an average speed of the worm when the worm pushes the pushed object to move forward.
3. The method for monitoring the locked-rotor state of the push rod motor according to claim 1, wherein the transmission ratio of the primary worm gear is greater than that of the secondary worm gear; wherein, the transmission ratio of the first-stage worm gear is marked as L 1 (ii) a The gear ratio of the two-stage worm gear is marked L 2 ：
L 1 ＝Z 0 /Z 1 ；L 1 ＝Z 0 /Z 2 ；
Wherein Z is 0 Number of worm teeth, Z, in first-order worm gears 1 The number of teeth of the first-level worm wheel in the first-level worm gear, Z 2 The number of teeth of the second-level worm wheel in the second-level worm wheel and worm is the same as that of the first-level worm wheel and worm and the second-level worm wheel and worm.
4. The method for monitoring the locked-rotor state of the push rod motor according to any one of claims 1 to 3, wherein the first preset moving speed value is equal to the second preset moving speed value, and the first preset output torque is equal to the second preset output torque.
5. The method for monitoring the locked-rotor state of the push rod motor according to any one of claims 1 to 3, wherein the pushed object is a ring suction plate or a lifting plate.
6. The push rod mechanism for realizing the method for monitoring the locked-rotor state of the push rod motor according to any one of claims 1 to 5 is characterized by comprising the following steps:
a first motor (1) having a first motor shaft;
a second motor (2) having a second motor shaft;
the primary worm wheel (3) is in transmission connection with a first motor shaft of the first motor (1);
the secondary worm wheel (4) is in transmission connection with a second motor shaft of the second motor (2);
the worm (5) can be meshed with the first-stage worm wheel (3) and the second-stage worm wheel (4) respectively; the worm (5) is meshed with the first-stage worm wheel (3) to form a first-stage worm wheel and worm, and the worm (5) is meshed with the second-stage worm wheel (4) to form a second-stage worm wheel and worm;
a speed detection device (6) for detecting at least the forward movement speed of the worm (5) when pushing the pushed object;
the controller (7) is respectively connected with the first motor (1), the second motor (2) and the speed detection device (6); the controller (7) processes according to the forward movement speed of the worm (5) to form a command for correspondingly controlling the first motor (1) or/and a command for controlling the second motor (2); and forming a command corresponding to the control of the first motor (1) or/and a command corresponding to the control of the second motor (2) according to the output torque of the first motor shaft of the first motor (1).
7. A push-rod mechanism according to claim 6, characterised in that said speed detection means (6) is a speed sensor; alternatively, the speed detection means (6) comprise a timer and a distance sensor detecting at least the positive movement displacement of the worm (5).
8. A range hood, characterized in that, has applied the push rod mechanism of claim 6 or 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111173876.2A CN113883560B (en) | 2021-10-09 | 2021-10-09 | Push rod motor locked-rotor state monitoring method, push rod mechanism and range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111173876.2A CN113883560B (en) | 2021-10-09 | 2021-10-09 | Push rod motor locked-rotor state monitoring method, push rod mechanism and range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113883560A CN113883560A (en) | 2022-01-04 |
| CN113883560B true CN113883560B (en) | 2022-07-26 |
Family
ID=79005633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111173876.2A Active CN113883560B (en) | 2021-10-09 | 2021-10-09 | Push rod motor locked-rotor state monitoring method, push rod mechanism and range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113883560B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644583A (en) * | 2013-09-12 | 2014-03-19 | 中山华帝燃具股份有限公司 | Control device capable of monitoring running state of range hood in real time and control method thereof |
| CN104089376A (en) * | 2014-07-15 | 2014-10-08 | 珠海格力电器股份有限公司 | Method and device for detecting locked rotor of motor |
| CN110469882A (en) * | 2019-07-01 | 2019-11-19 | 珠海格力电器股份有限公司 | A kind of range hood cover control method, device, equipment and readable medium |
| CN110939958A (en) * | 2018-09-25 | 2020-03-31 | 宁波方太厨具有限公司 | Method for testing performance of movement mechanism of smoke baffle plate of range hood |
| CN111520784A (en) * | 2020-05-12 | 2020-08-11 | 宁波方太厨具有限公司 | Range hood and position determining method and control method of lifting component of range hood |
| CN111911982A (en) * | 2020-08-06 | 2020-11-10 | 华帝股份有限公司 | Submersible range hood and control method thereof |
| CN111942344A (en) * | 2020-07-14 | 2020-11-17 | 南京天航智能装备研究院有限公司 | Line control hydraulic braking system with motor locked-rotor protection device and control method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100525412B1 (en) * | 2003-05-13 | 2005-11-02 | 엘지전자 주식회사 | System for controlling compressor of cooling system and method for controlling compressor |
-
2021
- 2021-10-09 CN CN202111173876.2A patent/CN113883560B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644583A (en) * | 2013-09-12 | 2014-03-19 | 中山华帝燃具股份有限公司 | Control device capable of monitoring running state of range hood in real time and control method thereof |
| CN104089376A (en) * | 2014-07-15 | 2014-10-08 | 珠海格力电器股份有限公司 | Method and device for detecting locked rotor of motor |
| CN110939958A (en) * | 2018-09-25 | 2020-03-31 | 宁波方太厨具有限公司 | Method for testing performance of movement mechanism of smoke baffle plate of range hood |
| CN110469882A (en) * | 2019-07-01 | 2019-11-19 | 珠海格力电器股份有限公司 | A kind of range hood cover control method, device, equipment and readable medium |
| CN111520784A (en) * | 2020-05-12 | 2020-08-11 | 宁波方太厨具有限公司 | Range hood and position determining method and control method of lifting component of range hood |
| CN111942344A (en) * | 2020-07-14 | 2020-11-17 | 南京天航智能装备研究院有限公司 | Line control hydraulic braking system with motor locked-rotor protection device and control method |
| CN111911982A (en) * | 2020-08-06 | 2020-11-10 | 华帝股份有限公司 | Submersible range hood and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113883560A (en) | 2022-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3083473B1 (en) | Detection method for elevator brake moment | |
| CN110792765B (en) | Self-learning control method and system for gear position of gearbox | |
| CN105697585B (en) | The contact point detection method and device of clutch | |
| EP0770027B1 (en) | Overload detector for servo driven machines | |
| CN113883560B (en) | Push rod motor locked-rotor state monitoring method, push rod mechanism and range hood | |
| CN111520784B (en) | Range hood and position determining method and control method of lifting component of range hood | |
| CN100408827C (en) | Engine control device of construction machinery | |
| US7791299B2 (en) | Process for controlling an electrically driven motor vehicle window | |
| CN108217398B (en) | Method for controlling car door driving motor by door machine controller | |
| US9963934B2 (en) | Device and method for controlling speed of rolling door | |
| US9856689B2 (en) | Method and device for determining the offset of an electric window lift system | |
| JPS63245389A (en) | Method of controlling robot | |
| JPH0921273A (en) | Opening/closing control device for opening/closing body | |
| CN114602666B (en) | Method for detecting and processing stall of centrifuge rotor | |
| CN110995083B (en) | High-reliability locking control method and control system for three-self-inertia-unit product | |
| CN220506838U (en) | Fume exhauster | |
| CN110552312B (en) | One-key sequence control method and system for snow melting vehicle | |
| JPH0780665B2 (en) | Elevator door control device | |
| JP2009228254A (en) | Drive control unit for opening/closing body | |
| CN115967307A (en) | Multi-motor control method, control device and storage medium | |
| JP2002179392A (en) | Control method for elevating system | |
| JPS639275Y2 (en) | ||
| JPH04209181A (en) | Automatic rescue operation device for elevator | |
| AU2023217033A1 (en) | System for automatic calibration of an initial position of a moveable machine component | |
| JPH07101652A (en) | Door controller of elevator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |