CN205029325U - Motor protection controlling means and intelligent motor - Google Patents
Motor protection controlling means and intelligent motor Download PDFInfo
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- CN205029325U CN205029325U CN201520820831.3U CN201520820831U CN205029325U CN 205029325 U CN205029325 U CN 205029325U CN 201520820831 U CN201520820831 U CN 201520820831U CN 205029325 U CN205029325 U CN 205029325U
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- control device
- electric motor
- testing circuit
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Abstract
The utility model discloses a motor protection controlling means and intelligent motor. Motor protection controlling means includes: be connected with the source phase, detect the phase sequence detection circuit of mains voltage, frequency and phase information, be connected with the phase sequence detection circuit, carry out the power steady voltage frequency converting circuit that steady voltage and frequency modulation were handled to mains voltage, detect the inside winding surface temperature's of motor motor winding temperature detection circuitry, detect motor operating current's motor winding current detection circuitry, detect motor rotation number's motor rotation number detection circuitry, and be connected accommodate motor's input voltage and frequency with phase sequence detection circuit, power steady voltage frequency converting circuit, motor winding temperature detection circuitry, motor winding current detection circuitry and motor rotation number detection circuitry respectively to and judge when power supply abnormal and/or motor are unusual the intelligent control board of control motor bring to rest. The utility model provides a motor protection controlling means and intelligent motor, the trouble incidence is low, and security and reliability are high.
Description
Technical field
The utility model relates to technical field of electricity, particularly relates to a kind of electric motor protecting control device and intelligent electric machine.
Background technology
Motor is a kind of calutron realizing electric energy conversion according to the law of electromagnetic induction or transmit, and Main Function produces driving torque, as the power source of electrical appliance or various machinery.
Protecting control mainly phase sequence, overload protection and the Thermal protection etc. of motor, in current technology, these protected modes all need realization motor external circuits being carried out to correlation function, independent of one another between the implement device of each protection.
But; independent of one another between the implement device of each protection; make in current technology; the implement device of these protections needs the components and parts of self complete set separately; it is more that the implement device causing each to protect has required components and parts altogether; when the probability that single components and parts break down is certain; be understandable that; the failure rate of the implement device of whole protection be each components and parts failure rate and; make electric motor protecting control device of the prior art; easily break down, safety and reliability is poor.
Utility model content
In view of this, the utility model provides a kind of electric motor protecting control device and intelligent electric machine, and rate of breakdown will obvious low and existing electric motor protecting control device, thus effectively can improve safety and reliability.
For achieving the above object, the utility model provides following technical scheme:
A kind of electric motor protecting control device, comprising:
Be connected with power supply, detect the circuit of testing the phase sequence of supply voltage, frequency and phase information;
Be connected with described circuit of testing the phase sequence, supply voltage carried out to the power supply stable voltage frequency conversion circuit of voltage stabilizing and frequency modulation process;
Detect the motor winding temperature testing circuit of motor internal winding table surface temperature;
Detect the machine winding current testing circuit of motor operating current;
Detect the motor speed testing circuit of motor speed;
And be connected with described motor speed testing circuit with described circuit of testing the phase sequence, described power supply stable voltage frequency conversion circuit, described motor winding temperature testing circuit, described machine winding current testing circuit respectively, regulate input voltage and the frequency of motor, and when judging abnormity of power supply and/or motor abnormality, control the Intelligent control board that motor is out of service.
Preferably, described motor winding temperature testing circuit is that infrared ray occurs and testing circuit.
Preferably, described machine winding current testing circuit is current transformer.
Preferably, described motor speed testing circuit is Hall circuit.
Preferably, also comprise:
Be connected with described Intelligent control board, carry out the first sound optical alarm circuit of reporting to the police when described abnormity of power supply.
Preferably, also comprise:
Be connected with described Intelligent control board, carry out the rising tone optical alarm circuit of reporting to the police when described motor abnormality.
Preferably, the described first sound optical alarm circuit light-emitting diode that comprises buzzer and be connected with described buzzer.
Preferably, the described rising tone optical alarm circuit light-emitting diode that comprises buzzer and be connected with described buzzer.
A kind of intelligent electric machine, comprising:
Electric motor protecting control device described in above-mentioned any one, and the motor be connected with described electric motor protecting control device.
Known via above-mentioned technical scheme, compared with prior art, the utility model provides a kind of electric motor protecting control device and intelligent electric machine.The electric motor protecting control device that the utility model provides, comprising: be connected with power supply, detects the circuit of testing the phase sequence of supply voltage, frequency and phase information; Be connected with described circuit of testing the phase sequence, supply voltage carried out to the power supply stable voltage frequency conversion circuit of voltage stabilizing and frequency modulation process; Detect the motor winding temperature testing circuit of motor internal winding table surface temperature; Detect the machine winding current testing circuit of motor operating current; Detect the motor speed testing circuit of motor speed; And be connected with described motor speed testing circuit with described circuit of testing the phase sequence, described power supply stable voltage frequency conversion circuit, described motor winding temperature testing circuit, described machine winding current testing circuit respectively, regulate input voltage and the frequency of motor, and when judging abnormity of power supply and/or motor abnormality, control the Intelligent control board that motor is out of service.Namely; the technical scheme that the utility model provides; by function i ntegration such as motor phase sequence protection, overload protection and Thermal protection in one apparatus; integrated design makes the whole control device of motor relative to each protective device of the prior art independently technical scheme separately; circuit structure wants simple a lot; decrease many components and parts; the electric motor protecting control device that the utility model is provided; rate of breakdown will obvious low and existing electric motor protecting control device, thus effectively can improve safety and reliability.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The structure chart of a kind of electric motor protecting control device that Fig. 1 provides for the utility model embodiment;
The structure chart of another electric motor protecting control device that Fig. 2 provides for the utility model embodiment;
The structure chart of another electric motor protecting control device that Fig. 3 provides for the utility model embodiment
The structure chart of another electric motor protecting control device that Fig. 4 provides for the utility model embodiment;
The structure chart of another electric motor protecting control device that Fig. 5 provides for the utility model embodiment;
The structure chart of a kind of intelligent electric machine that Fig. 6 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in further detail prior art and the utility model below in conjunction with the drawings and specific embodiments.
Embodiment one
Refer to Fig. 1, the structure chart of a kind of electric motor protecting control device that Fig. 1 provides for the utility model embodiment.As shown in Figure 1, this electric motor protecting control device, comprising:
Be connected with power supply, detect the circuit of testing the phase sequence 101 of supply voltage, frequency and phase information;
Be connected with described circuit of testing the phase sequence 101, supply voltage carried out to the power supply stable voltage frequency conversion circuit 102 of voltage stabilizing and frequency modulation process;
Detect the motor winding temperature testing circuit 103 of motor internal winding table surface temperature;
Detect the machine winding current testing circuit 104 of motor operating current;
Detect the motor speed testing circuit 105 of motor speed;
And be connected with described motor speed testing circuit 105 with described circuit of testing the phase sequence 101, described power supply stable voltage frequency conversion circuit 102, described motor winding temperature testing circuit 103, described machine winding current testing circuit 104 respectively, regulate input voltage and the frequency of motor, and when judging abnormity of power supply and/or motor abnormality, control the Intelligent control board 106 that motor is out of service.
Concrete, the motor internal winding table surface temperature that described Intelligent control board 106 feeds back according to described motor winding temperature testing circuit 103, the motor operating current that described machine winding current testing circuit 104 feeds back, with the motor speed that described motor speed testing circuit 105 feeds back, the input voltage of motor and frequency are regulated, thus the rotating speed of self-regulation motor, the operation of motor is optimized; If by the signal determination motor abnormality (i.e. motor operation exception) judging above-mentioned feedback, control motor out of service.Optionally, judge that whether motor is abnormal and mainly judge that whether motor internal winding table surface temperature is abnormal.
Concrete, described Intelligent control board 106, by the signal of described power supply stable voltage frequency conversion circuit 102 feedback, judges that whether power supply is abnormal, if abnormal, controls motor out of service.The performance of abnormity of power supply mainly comprises, and supply voltage and frequency fluctuation are too large, power phase shortage, power supply anti-phase.
The electric motor protecting control device that the utility model provides, comprising: be connected with power supply, detects the circuit of testing the phase sequence of supply voltage, frequency and phase information; Be connected with described circuit of testing the phase sequence, supply voltage carried out to the power supply stable voltage frequency conversion circuit of voltage stabilizing and frequency modulation process; Detect the motor winding temperature testing circuit of motor internal winding table surface temperature; Detect the machine winding current testing circuit of motor operating current; Detect the motor speed testing circuit of motor speed; And be connected with described motor speed testing circuit with described circuit of testing the phase sequence, described power supply stable voltage frequency conversion circuit, described motor winding temperature testing circuit, described machine winding current testing circuit respectively, regulate input voltage and the frequency of motor, and when judging abnormity of power supply and/or motor abnormality, control the Intelligent control board that motor is out of service.Namely; the technical scheme that the utility model provides; by function i ntegration such as motor phase sequence protection, overload protection and Thermal protection in one apparatus; integrated design makes the whole control device of motor relative to each protective device of the prior art independently technical scheme separately; circuit structure wants simple a lot; decrease many components and parts; the electric motor protecting control device that the utility model is provided; rate of breakdown will obvious low and existing electric motor protecting control device, thus effectively can improve safety and reliability.
In addition, the electric motor protecting control device that the utility model provides, because every electric motor protecting function i ntegration is at a device, circuit structure is simple, make versatility and applicability stronger.
In addition, the electric motor protecting control device that the utility model provides, due to while the every electric motor protecting functional realiey of guarantee, can reduce many components and parts, thus effectively can save cost.
In order to the technical scheme that more detailed elaboration the utility model provides, the utility model also provides another one embodiment.
Embodiment two
Refer to Fig. 2, the structure chart of another electric motor protecting control device that Fig. 2 provides for the utility model embodiment.As shown in Figure 2, this electric motor protecting control device, comprising:
Be connected with power supply, detect the circuit of testing the phase sequence 201 of supply voltage, frequency and phase information;
Be connected with described circuit of testing the phase sequence 201, supply voltage carried out to the power supply stable voltage frequency conversion circuit 202 of voltage stabilizing and frequency modulation process;
The infrared ray detecting motor internal winding table surface temperature occurs and testing circuit 203;
Detect the current transformer 204 of motor operating current;
Detect the Hall circuit 205 of motor speed;
And be connected with described motor speed testing circuit 205 with described circuit of testing the phase sequence 201, described power supply stable voltage frequency conversion circuit 202, described motor winding temperature testing circuit 203, described machine winding current testing circuit 204 respectively, regulate input voltage and the frequency of motor, and when judging abnormity of power supply and/or motor abnormality, control the Intelligent control board 206 that motor is out of service.
Concrete, the technical scheme that the utility model embodiment two provides is to a kind of specific implementation of embodiment one (providing) technical scheme.Namely the motor winding temperature testing circuit 103 in embodiment one technical scheme, optionally, for infrared ray occurs and testing circuit 203; Machine winding current testing circuit 104 in embodiment one technical scheme optionally, is current transformer 204; Motor speed testing circuit 105 in embodiment one technical scheme optionally, is Hall circuit 205.
Further, when motor and/or abnormity of power supply, can report to the police, to cause related personnel to note, thus check in time and keep in repair.For this reason, the invention also discloses other three embodiments.
Embodiment three
Refer to Fig. 3, the structure chart of another electric motor protecting control device that Fig. 3 provides for the utility model embodiment.As shown in Figure 3, this electric motor protecting control device, comprising:
Be connected with power supply, detect the circuit of testing the phase sequence 301 of supply voltage, frequency and phase information;
Be connected with described circuit of testing the phase sequence 301, supply voltage carried out to the power supply stable voltage frequency conversion circuit 302 of voltage stabilizing and frequency modulation process;
Detect the motor winding temperature testing circuit 303 of motor internal winding table surface temperature;
Detect the machine winding current testing circuit 304 of motor operating current;
Detect the motor speed testing circuit 305 of motor speed;
Be connected with described motor speed testing circuit 305 with described circuit of testing the phase sequence 301, described power supply stable voltage frequency conversion circuit 302, described motor winding temperature testing circuit 303, described machine winding current testing circuit 304 respectively, regulate input voltage and the frequency of motor, and when judging abnormity of power supply and/or motor abnormality, control the Intelligent control board 306 that motor is out of service;
And be connected with described Intelligent control board 306, the first sound optical alarm circuit 307 of reporting to the police is carried out when described abnormity of power supply.
Concrete, when described Intelligent control board 306 determines described abnormity of power supply, control described first sound optical alarm circuit 307 and report to the police.
Optionally, described first sound optical alarm circuit 307 light-emitting diode that comprises buzzer and be connected with described buzzer.
Concrete, the motor winding temperature testing circuit 303 in the present embodiment technical scheme, optionally, for infrared ray occurs and testing circuit; Machine winding current testing circuit 304 in the present embodiment technical scheme optionally, is current transformer; Motor speed testing circuit 305 in the present embodiment technical scheme optionally, is Hall circuit.
Embodiment four
Refer to Fig. 4, the structure chart of another electric motor protecting control device that Fig. 4 provides for the utility model embodiment.As shown in Figure 4, this electric motor protecting control device, comprising:
Be connected with power supply, detect the circuit of testing the phase sequence 401 of supply voltage, frequency and phase information;
Be connected with described circuit of testing the phase sequence 401, supply voltage carried out to the power supply stable voltage frequency conversion circuit 402 of voltage stabilizing and frequency modulation process;
Detect the motor winding temperature testing circuit 403 of motor internal winding table surface temperature;
Detect the machine winding current testing circuit 404 of motor operating current;
Detect the motor speed testing circuit 405 of motor speed;
Be connected with described motor speed testing circuit 405 with described circuit of testing the phase sequence 401, described power supply stable voltage frequency conversion circuit 402, described motor winding temperature testing circuit 403, described machine winding current testing circuit 404 respectively, regulate input voltage and the frequency of motor, and when judging abnormity of power supply and/or motor abnormality, control the Intelligent control board 406 that motor is out of service;
And be connected with described Intelligent control board 406, the rising tone optical alarm circuit 407 of reporting to the police is carried out when described motor abnormality.
Concrete, when described Intelligent control board 406 determines described motor abnormality, control described rising tone optical alarm circuit 407 and report to the police.
Optionally, described rising tone optical alarm circuit 407 light-emitting diode that comprises buzzer and be connected with described buzzer.
Concrete, the motor winding temperature testing circuit 403 in the present embodiment technical scheme, optionally, for infrared ray occurs and testing circuit; Machine winding current testing circuit 404 in the present embodiment technical scheme optionally, is current transformer; Motor speed testing circuit 405 in the present embodiment technical scheme optionally, is Hall circuit.
Embodiment five
Refer to Fig. 5, the structure chart of another electric motor protecting control device that Fig. 5 provides for the utility model embodiment.As shown in Figure 5, this electric motor protecting control device, comprising:
Be connected with power supply, detect the circuit of testing the phase sequence 501 of supply voltage, frequency and phase information;
Be connected with described circuit of testing the phase sequence 501, supply voltage carried out to the power supply stable voltage frequency conversion circuit 502 of voltage stabilizing and frequency modulation process;
Detect the motor winding temperature testing circuit 503 of motor internal winding table surface temperature;
Detect the machine winding current testing circuit 504 of motor operating current;
Detect the motor speed testing circuit 505 of motor speed;
Be connected with described motor speed testing circuit 505 with described circuit of testing the phase sequence 501, described power supply stable voltage frequency conversion circuit 502, described motor winding temperature testing circuit 503, described machine winding current testing circuit 504 respectively, regulate input voltage and the frequency of motor, and when judging abnormity of power supply and/or motor abnormality, control the Intelligent control board 506 that motor is out of service;
Be connected with described Intelligent control board 506, carry out the first sound optical alarm circuit 507 of reporting to the police when described abnormity of power supply;
And be connected with described Intelligent control board 506, the rising tone optical alarm circuit 508 of reporting to the police is carried out when described motor abnormality.
Concrete, when described Intelligent control board 506 determines described abnormity of power supply, control described first sound optical alarm circuit 507 and report to the police.
Concrete, when described Intelligent control board 506 determines described motor abnormality, control described rising tone optical alarm circuit 508 and report to the police.
Optionally, the light-emitting diode that described first sound optical alarm circuit 507 comprises buzzer and is connected with described buzzer, the light-emitting diode that described rising tone optical alarm circuit 508 comprises buzzer and is connected with described buzzer; Optionally; light-emitting diode in described first sound optical alarm circuit 507 is different from the LED color of rising tone optical alarm circuit 508; specifically abnormity of power supply or motor abnormality is identified to facilitate relevant maintenance personal; in addition; optionally; buzzer in described first sound optical alarm circuit 507 and the buzzer of rising tone optical alarm circuit 508, the sound of broadcasting is also set to different sound, to show difference.
Concrete, the motor winding temperature testing circuit 503 in the present embodiment technical scheme, optionally, for infrared ray occurs and testing circuit; Machine winding current testing circuit 504 in the present embodiment technical scheme optionally, is current transformer; Motor speed testing circuit 505 in the present embodiment technical scheme optionally, is Hall circuit.
In addition, the technical scheme that the utility model provides, also discloses a kind of intelligent electric machine.
Refer to Fig. 6, the structure chart of a kind of intelligent electric machine that Fig. 6 provides for the utility model embodiment.As shown in Figure 6, this intelligent electric machine comprises:
The electric motor protecting control device 601 that any one embodiment of above-mentioned the utility model provides, and the motor 602 be connected with described electric motor protecting control device.
Concrete, described motor 602 refers to motor body.In addition, because the electric motor protecting control device provided any one embodiment of the utility model has above carried out detailed elaboration, therefore for electric motor protecting control device, repeat no more herein.
Known via above-mentioned technical scheme, compared with prior art, the utility model provides a kind of electric motor protecting control device and intelligent electric machine.The electric motor protecting control device that the utility model provides, comprising: be connected with power supply, detects the circuit of testing the phase sequence of supply voltage, frequency and phase information; Be connected with described circuit of testing the phase sequence, supply voltage carried out to the power supply stable voltage frequency conversion circuit of voltage stabilizing and frequency modulation process; Detect the motor winding temperature testing circuit of motor internal winding table surface temperature; Detect the machine winding current testing circuit of motor operating current; Detect the motor speed testing circuit of motor speed; And be connected with described motor speed testing circuit with described circuit of testing the phase sequence, described power supply stable voltage frequency conversion circuit, described motor winding temperature testing circuit, described machine winding current testing circuit respectively, regulate input voltage and the frequency of motor, and when judging abnormity of power supply and/or motor abnormality, control the Intelligent control board that motor is out of service.Namely; the technical scheme that the utility model provides; by function i ntegration such as motor phase sequence protection, overload protection and Thermal protection in one apparatus; integrated design makes the whole control device of motor relative to each protective device of the prior art independently technical scheme separately; circuit structure wants simple a lot; decrease many components and parts; the electric motor protecting control device that the utility model is provided; rate of breakdown will obvious low and existing electric motor protecting control device, thus effectively can improve safety and reliability.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an electric motor protecting control device, is characterized in that, comprising:
Be connected with power supply, detect the circuit of testing the phase sequence of supply voltage, frequency and phase information;
Be connected with described circuit of testing the phase sequence, supply voltage carried out to the power supply stable voltage frequency conversion circuit of voltage stabilizing and frequency modulation process;
Detect the motor winding temperature testing circuit of motor internal winding table surface temperature;
Detect the machine winding current testing circuit of motor operating current;
Detect the motor speed testing circuit of motor speed;
And be connected with described motor speed testing circuit with described circuit of testing the phase sequence, described power supply stable voltage frequency conversion circuit, described motor winding temperature testing circuit, described machine winding current testing circuit respectively, regulate input voltage and the frequency of motor, and when judging abnormity of power supply and/or motor abnormality, control the Intelligent control board that motor is out of service.
2. electric motor protecting control device according to claim 1, is characterized in that, described motor winding temperature testing circuit is that infrared ray occurs and testing circuit.
3. electric motor protecting control device according to claim 1, is characterized in that, described machine winding current testing circuit is current transformer.
4. electric motor protecting control device according to claim 1, is characterized in that, described motor speed testing circuit is Hall circuit.
5. the electric motor protecting control device according to any one of Claims 1 to 4, is characterized in that, also comprise:
Be connected with described Intelligent control board, carry out the first sound optical alarm circuit of reporting to the police when described abnormity of power supply.
6. electric motor protecting control device according to claim 5, is characterized in that, also comprise:
Be connected with described Intelligent control board, carry out the rising tone optical alarm circuit of reporting to the police when described motor abnormality.
7. electric motor protecting control device according to claim 5, is characterized in that, the light-emitting diode that described first sound optical alarm circuit comprises buzzer and is connected with described buzzer.
8. electric motor protecting control device according to claim 6, is characterized in that, the light-emitting diode that described rising tone optical alarm circuit comprises buzzer and is connected with described buzzer.
9. an intelligent electric machine, is characterized in that, comprising:
Electric motor protecting control device described in any one of Claims 1 to 4, and the motor be connected with described electric motor protecting control device.
10. an intelligent electric machine, is characterized in that, comprising:
Electric motor protecting control device according to claim 6, and the motor be connected with described electric motor protecting control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520820831.3U CN205029325U (en) | 2015-10-20 | 2015-10-20 | Motor protection controlling means and intelligent motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520820831.3U CN205029325U (en) | 2015-10-20 | 2015-10-20 | Motor protection controlling means and intelligent motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205029325U true CN205029325U (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520820831.3U Expired - Fee Related CN205029325U (en) | 2015-10-20 | 2015-10-20 | Motor protection controlling means and intelligent motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205029325U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108937787A (en) * | 2018-07-17 | 2018-12-07 | 佛山市顺德区美的洗涤电器制造有限公司 | Varying frequency drive method, device and computer readable storage medium |
| CN116257028A (en) * | 2023-05-16 | 2023-06-13 | 深圳市卓皓自动化科技有限公司 | Intelligent overvoltage regulating method, system and equipment for protective article production equipment |
-
2015
- 2015-10-20 CN CN201520820831.3U patent/CN205029325U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108937787A (en) * | 2018-07-17 | 2018-12-07 | 佛山市顺德区美的洗涤电器制造有限公司 | Varying frequency drive method, device and computer readable storage medium |
| CN116257028A (en) * | 2023-05-16 | 2023-06-13 | 深圳市卓皓自动化科技有限公司 | Intelligent overvoltage regulating method, system and equipment for protective article production equipment |
| CN116257028B (en) * | 2023-05-16 | 2023-08-11 | 深圳市卓皓自动化科技有限公司 | Intelligent overvoltage regulating method, system and equipment for protective article production equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20211020 |
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| CF01 | Termination of patent right due to non-payment of annual fee |