CN202583923U - Fuzzy power-adjusting condensation controller - Google Patents
Fuzzy power-adjusting condensation controller Download PDFInfo
- Publication number
- CN202583923U CN202583923U CN 201220195628 CN201220195628U CN202583923U CN 202583923 U CN202583923 U CN 202583923U CN 201220195628 CN201220195628 CN 201220195628 CN 201220195628 U CN201220195628 U CN 201220195628U CN 202583923 U CN202583923 U CN 202583923U
- Authority
- CN
- China
- Prior art keywords
- temperature
- cabinet
- sensor
- chip microcomputer
- humidity sensor
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
A fuzzy power-adjusting condensation controller belongs to the auxiliary device filed of electric control cabinet safe operation. A digital temperature sensor and a temperature and humidity sensor are used to measure the lower portion temperature and the upper portion temperature and humidity in an electric control cabinet. An additional digital temperature sensor and an additional digital temperature and humidity sensor are used to measure the environment temperature and the temperature and humidity outside the electric control cabinet. The average temperature, humidity and condensation temperature inside the electric control cabinet, and the environment temperature, humidity and condensation temperature outside the electric control cabinet are measured and computed through a single chip microcomputer. The single chip microcomputer carries out fuzzification, fuzzy reasoning and fuzzy decision on each input signal, then outputs heater and draught fan power adjusting signals to control the connection and disconnection of thyristors, adjusts the heater and draught fan power according to the temperature departure and humidity departure, destructs the condensation generating conditions timely, and avoids the condensation generation. The fuzzy power-adjusting condensation controller is reliable in operation and saves electric energy.
Description
Technical field
The utility model belongs to the servicing unit field of electrical control cubicles safe operation, particularly relates to the inner condensation-preventing controller of a kind of electrical control cubicles.
Background technology
The anti-condensation control of electrical control cubicles is the important means that ensures electrical equipment safe operation in the electrical control cubicles.In the anti-condensation system of existing electrical control cubicles, generally adopt control mode by temperature, humidity sensor switch board internal heater and exhaust fan.The shortcoming of this control mode is just to start well heater or exhaust fan after condensation takes place, and belongs to passive hysteresis control mode, and the safe operation of electrical control cubicles is had potential threat.
" switch cubicle condensation-preventing controller (Granted publication CN 201478706U) " and " a kind of terminal box is prevented condensation control system (Granted publication CN 201663368U) " all adopts the mode of two-way temperature or the inside and outside temperature of Temperature Humidity Sensor measuring switch cabinet (or humiture) to carry out condensation control; In case a certain road sensor fault; To lose measuring ability; Can't heat accurately and air draft control, its reliability is not suitable for unattended occasion yet.Present existing electrical control cubicles condensation controller does not all possess the Power Regulation control function, and heating and air draft all are capacity operations, can not accomplish to heat the control that becomes more meticulous with air draft.
Need badly in the prior art and want a kind of controller can solve following technical matters: when sensor fault, the condensation phenomenon does not take place in the electrical control cubicles; When electrical control cubicles external environment temperature is lower than in the electrical control cubicles device temperature, guarantee normal operating temperature and humidity in the electrical control cubicles; When medial temperature in the electrical control cubicles during near dewpoint temperature, in time destroy condensation and produce condition, avoid the generation of condensation.
Summary of the invention
The utility model technical matters to be solved is: realized the early warning of condensation condition is detected;, in time destroys condensation the condensation formation condition before generating; Adopt fuzzy control method that well heater and exhaust fan are carried out the power optimization adjusting; When ensureing the electrical control cubicles safe operation, also reduced the electric energy loss of condensation control itself, have the meaning of energy savings.
A kind of fuzzy Power Regulation condensation controller; It is characterized in that: comprise Temperature Humidity Sensor in power module, house dog, ambient temperature and humidity sensor, environment temperature sensor, the cabinet, in-cabinet temperature sensor, RS485 change-over circuit, second thyristor, exhaust fan, well heater, first thyristor, communication indication loop, state indication loop, one chip microcomputer, described power module is connected with one chip microcomputer; Described house dog employing RS485 communication interface is carried out data transmission with one chip microcomputer and is connected; Described ambient temperature and humidity sensor and environment temperature sensor are installed in the electrical control cubicles top cover left and right sides respectively; Temperature Humidity Sensor and in-cabinet temperature sensor are installed on the sidewall of a upper lateral part in the cabinet respectively and on the sidewall of opposite side bottom in the described cabinet; Described RS485 change-over circuit is connected with the communication port of one chip microcomputer; Described exhaust fan is installed in upper top cover centre position in the cabinet, is connected with first thyristor; Described well heater is installed on the cabinet inner bottom plating, is connected with second thyristor; Described communication indication loop, state indication loop connect respectively at the output port of one chip microcomputer; Described one chip microcomputer through cable respectively with ambient temperature and humidity sensor, environment temperature sensor, cabinet in Temperature Humidity Sensor, in-cabinet temperature sensor, second thyristor, exhaust fan, well heater, be connected first thyristor.
Temperature Humidity Sensor all is digital temperature-humidity sensors in described ambient temperature and humidity sensor, the cabinet.
Described environment temperature sensor, in-cabinet temperature sensor all are digital temperature sensors.
Described communication indication loop and state indication loop are provided with pilot lamp.
The electric power loop series connection of described second thyristor and exhaust fan, the electric power loop series connection of the well heater and first thyristor.
Described one chip microcomputer employing RS485 communication interface and standard ModBus bus protocol and other controller or computing machine communicate.
Through above-mentioned design proposal; The utility model can bring following beneficial effect: the utility model adopts two independent digital temperature-humidity sensor and two independent digital temperature sensor to measure electrical control cubicles internal and external temperature, humidity simultaneously; Five temperature, moisture measurement parameter and two condensation temperature parameters that calculate are predicted the condensation condition and are judged; In the time of can guaranteeing any two sensor faults, the condensation phenomenon does not take place in the electrical control cubicles.Promptly when electrical control cubicles external environment temperature is lower than in the electrical control cubicles equipment and allows running temperature, adopt the environment temperature control of electrical control cubicles external environment temperature sensor measurement and regulate well heater and exhaust fan power, guarantee normal operating temperature and humidity that electrical control cubicles is interior; When medial temperature in the electrical control cubicles during near dewpoint temperature, according to temperature deviation size adjustment well heater and exhaust fan power, in time destroy condensation and produce condition, avoid the generation of condensation, have measure accurately, the life-span is long, high reliability features.
The utility model adopts thyristor as the power adjustments device, through the conducting of control thyristor and shutoff time changing well heater and exhaust fan power, effectively saves energy.
The utility model adopts FUZZY ALGORITHMS FOR CONTROL that humiture in the electrical control cubicles is regulated, and has the control accuracy height, the characteristics that dynamic property is stable.
The utility model employing RS485 communication interface and standard ModBus bus protocol and other controller or computing machine communicate, and can realize the networking monitoring and the online Correction and Control parameter of a plurality of controllers.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Fig. 1 is the structured flowchart of a kind of fuzzy Power Regulation condensation controller of the utility model.
Fig. 2 is the layout synoptic diagram of a kind of fuzzy Power Regulation condensation controller main element in electrical control cubicles of the utility model.
Among the figure: Temperature Humidity Sensor, 6-in-cabinet temperature sensor, 7-RS485 change-over circuit, 8-second thyristor, 9-exhaust fan, 10-well heater, 11-first thyristor, 12-communication indication loop, 13-state indication loop, 14-one chip microcomputer in 1-power module, 2-house dog, 3-ambient temperature and humidity sensor, 4-environment temperature sensor, the 5-cabinet.
Embodiment
The utility model as shown in the figure is design like this: adopt a digital temperature sensor and a Temperature Humidity Sensor to measure temperature of lower and top humiture in the electrical control cubicles; Adopt a digital temperature sensor and a digital temperature-humidity sensor to measure electrical control cubicles external environment temperature and humiture in addition; Through medial temperature, humidity, condensation temperature and electrical control cubicles external environment temperature, humidity and condensation temperature in the one chip microcomputer 14 measurements and calculations electrical control cubicles; Undertaken exporting well heater and exhaust fan power adjustments signal behind obfuscation, fuzzy reasoning and the fuzzy judgment by 14 pairs of each road input signals of one chip microcomputer; The conducting and the shutoff of control thyristor; Regulate the temperature and humidity in the electrical control cubicles, avoid the generation of condensation.
Ambient temperature and humidity sensor 3 is installed on below, electrical control cubicles exterior upper top cover right side, and environment temperature sensor 4 is installed on below, electrical control cubicles exterior upper top cover left side.
Exhaust fan 9 is installed on the cabinet internal head cover, and well heater 10 is installed on the cabinet inner bottom part installing plate.
One chip microcomputer passes through ambient temperature and humidity sensor 3 and environment temperature sensor 4 measures ambient temperature and humidity, and calculates the environment dewpoint temperature.
One chip microcomputer is measured in-cabinet temperature and humidity through Temperature Humidity Sensor in the cabinet 5 and in-cabinet temperature sensor 6, and calculates the interior dewpoint temperature that offers for sale.
In the present embodiment, for the reliability that guarantees to measure and control, adopt humiture and ambient temperature and humidity two-way sensor arrangement in the cabinet, data that arbitrarily all can other two sensors during the two-way sensor fault are as controlling foundation.
The output of one chip microcomputer 14 acts on thyristor B8 and thyristor A11 respectively, according to its conducting of result of calculation control and the shutoff moment of FUZZY ALGORITHMS FOR CONTROL.
Thyristor B8 and the series connection of exhaust fan 9 electric power loops realize the exhaust fan power adjustments, and thyristor A11 and the series connection of well heater 10 electric power loops realize the heater power adjusting.
Controller has communication indication loop (12), state indication loop (13).
House dog 2 is connected with one chip microcomputer 14, is used to keep watch on its running status, in case deadlock situation takes place one chip microcomputer 14, the one chip microcomputer that automatically resets guarantees reliability of operation.
RS485 change-over circuit 7 is connected with the communication port of one chip microcomputer 14, realizes the conversion of Transistor-Transistor Logic level to the RS485 level, and outside other watch-dog can communicate through RS485 change-over circuit 7 and the utility model.
In addition; For the convenience of staff's tour, present embodiment is provided with communication indication loop 12 and state indication loop 13, respectively at the output port connection of one chip microcomputer 14; Communication indication loop 12 is provided with pilot lamp; Be used to indicate communication normally whether, state indication loop 13 also is provided with pilot lamp, is used to indicate the duty of the utility model.
In sum; The utility model is a kind of fuzzy Power Regulation condensation controller; Focus on adopting ambient temperature and humidity sensor 3, the interior Temperature Humidity Sensor 5 of cabinet and the interior humiture of environment temperature sensor 4,6 pairs of ambient temperature and humidities of in-cabinet temperature sensor and cabinet to measure; And calculate the inside and outside dewpoint temperature that offers for sale, through these parameters are carried out obfuscation, fuzzy reasoning and fuzzy judgment, well heater 10 and exhaust fan 9 are implemented to optimize power adjustments control.
In addition, the utility model adopts RS485 conversion loop, can realize being connected and group net operation with the communication of miscellaneous equipment, realizes the remote monitoring to electrical control cubicles condensation situation.
Above embodiment is merely the technological thought of the utility model, and every on the technical scheme basis, the employing blured the condensation controller that constitutes with the Power Regulation mode, all falls within the utility model protection domain.
Claims (9)
1. fuzzy Power Regulation condensation controller; It is characterized in that: comprise Temperature Humidity Sensor (5) in power module (1), house dog (2), ambient temperature and humidity sensor (3), environment temperature sensor (4), the cabinet, in-cabinet temperature sensor (6), RS485 change-over circuit (7), second thyristor (8), exhaust fan (9), well heater (10), first thyristor (11), communication indication loop (12), state indication loop (13), one chip microcomputer (14), described power module (1) is connected with one chip microcomputer (14); Described house dog (2) employing RS485 communication interface is carried out data transmission with one chip microcomputer (14) and is connected; Described ambient temperature and humidity sensor (3) and environment temperature sensor (4) are installed in the electrical control cubicles top cover left and right sides respectively; Temperature Humidity Sensor (5) and in-cabinet temperature sensor (6) are installed on the sidewall of a upper lateral part in the cabinet respectively and on the sidewall of opposite side bottom in the described cabinet; Described RS485 change-over circuit (7) is connected with the communication port of one chip microcomputer (14); Described exhaust fan (9) is installed in upper top cover centre position in the cabinet, is connected with first thyristor (11); Described well heater (10) is installed on the cabinet inner bottom plating, is connected with second thyristor (8); Described communication indication loop (12), state indication loop (13) connect respectively at the output port of one chip microcomputer (14); Described one chip microcomputer (14) through cable respectively with ambient temperature and humidity sensor (3), environment temperature sensor (4), cabinet in Temperature Humidity Sensor (5), in-cabinet temperature sensor (6), second thyristor (8), exhaust fan (9), well heater (10), be connected first thyristor (11).
2. a kind of fuzzy Power Regulation condensation controller according to claim 1, it is characterized in that: described ambient temperature and humidity sensor (3) is a digital temperature-humidity sensor.
3. a kind of fuzzy Power Regulation condensation controller according to claim 1 is characterized in that: Temperature Humidity Sensor (5) is a digital temperature-humidity sensor in the described cabinet.
4. a kind of fuzzy Power Regulation condensation controller according to claim 1, it is characterized in that: described environment temperature sensor (4) is a digital temperature sensor.
5. a kind of fuzzy Power Regulation condensation controller according to claim 1, it is characterized in that: described in-cabinet temperature sensor (6) is a digital temperature sensor.
6. a kind of fuzzy Power Regulation condensation controller according to claim 1 is characterized in that: described communication indication loop (12) is provided with pilot lamp.
7. a kind of fuzzy Power Regulation condensation controller according to claim 1 is characterized in that: described state indication loop (13) is provided with pilot lamp.
8. a kind of fuzzy Power Regulation condensation controller according to claim 1 is characterized in that: the electric power loop series connection of described second thyristor (8) and exhaust fan (9), the electric power loop series connection of well heater (10) and first thyristor (11).
9. a kind of fuzzy Power Regulation condensation controller according to claim 1 is characterized in that: described one chip microcomputer (14) employing RS485 communication interface and standard ModBus bus protocol and other controller or computing machine communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220195628 CN202583923U (en) | 2012-05-03 | 2012-05-03 | Fuzzy power-adjusting condensation controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220195628 CN202583923U (en) | 2012-05-03 | 2012-05-03 | Fuzzy power-adjusting condensation controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202583923U true CN202583923U (en) | 2012-12-05 |
Family
ID=47253315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220195628 Expired - Fee Related CN202583923U (en) | 2012-05-03 | 2012-05-03 | Fuzzy power-adjusting condensation controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202583923U (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944080A (en) * | 2014-05-04 | 2014-07-23 | 宁波穆勒电气有限公司 | Condensation-preventing switch cabinet and condensation-preventing method |
| CN103956661A (en) * | 2014-05-04 | 2014-07-30 | 宁波穆勒电气有限公司 | Switch cabinet and condensation preventing method |
| CN104076847A (en) * | 2014-07-21 | 2014-10-01 | 国家电网公司 | Multiple temperature and humidity sensor placing and load switching method for outdoor control cubicle |
| CN104122916A (en) * | 2014-08-15 | 2014-10-29 | 北京卫星环境工程研究所 | Humidity control device and method of satellite humidity sensitive equipment |
| CN104360623A (en) * | 2014-12-09 | 2015-02-18 | 国网上海市电力公司 | Method for controlling heater switch in power distribution cabinet |
| CN104460787A (en) * | 2014-11-06 | 2015-03-25 | 无锡科思电子科技有限公司 | Damproof control method for electric control cabinet |
| CN105468061A (en) * | 2015-12-16 | 2016-04-06 | 大连尚能科技发展有限公司 | Apparatus for preventing board grade condensation generation |
| CN105628094A (en) * | 2015-12-23 | 2016-06-01 | 湖北仁威电业科技有限公司 | Temperature and humidity acquisition terminal based on temperature complementation and acquisition method thereof |
| CN106020148A (en) * | 2016-05-25 | 2016-10-12 | 江苏利得智能监测科技有限公司 | Novel intelligent frequency conversion dehumidifying system |
| CN106354177A (en) * | 2016-08-31 | 2017-01-25 | 东软集团股份有限公司 | Method and device for controlling working environment of self-service terminal equipment |
| CN107114848A (en) * | 2017-04-24 | 2017-09-01 | 广州市博泰光学科技有限公司 | Electric heating anti-fog eyeglass |
| CN107765743A (en) * | 2017-10-18 | 2018-03-06 | 国网江苏省电力公司南通供电公司 | Power auto-adjustment type switch cubicle temperature and humidity control device based on temperature difference control |
| CN109520088A (en) * | 2018-11-22 | 2019-03-26 | 广东美的制冷设备有限公司 | Refrigerating plant cooling control method, device, refrigerating plant and storage medium |
| CN109579244A (en) * | 2018-11-28 | 2019-04-05 | 广东美的制冷设备有限公司 | Air conditioner cooling control method and device, air conditioner and storage medium |
| CN111103911A (en) * | 2019-12-06 | 2020-05-05 | 珠海格力电器股份有限公司 | Heat dissipation device for mobile equipment and control method thereof |
| CN112462827A (en) * | 2020-10-27 | 2021-03-09 | 国网山东省电力公司临沂供电公司 | Integrated monitoring and treatment method and system for environment of control cubicle |
| CN112965549A (en) * | 2021-02-09 | 2021-06-15 | 杭州小电科技股份有限公司 | Constant temperature control system and constant temperature control method |
-
2012
- 2012-05-03 CN CN 201220195628 patent/CN202583923U/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944080A (en) * | 2014-05-04 | 2014-07-23 | 宁波穆勒电气有限公司 | Condensation-preventing switch cabinet and condensation-preventing method |
| CN103956661A (en) * | 2014-05-04 | 2014-07-30 | 宁波穆勒电气有限公司 | Switch cabinet and condensation preventing method |
| CN103956661B (en) * | 2014-05-04 | 2016-02-17 | 宁波懿德电气有限公司 | A kind of switch cubicle and dewing-proof method |
| CN104076847A (en) * | 2014-07-21 | 2014-10-01 | 国家电网公司 | Multiple temperature and humidity sensor placing and load switching method for outdoor control cubicle |
| CN104076847B (en) * | 2014-07-21 | 2016-06-29 | 国家电网公司 | A kind of outdoor many Temperature Humidity Sensors of convergence control cabinet are layouted and the method for load switching |
| CN104122916A (en) * | 2014-08-15 | 2014-10-29 | 北京卫星环境工程研究所 | Humidity control device and method of satellite humidity sensitive equipment |
| CN104460787A (en) * | 2014-11-06 | 2015-03-25 | 无锡科思电子科技有限公司 | Damproof control method for electric control cabinet |
| CN104360623A (en) * | 2014-12-09 | 2015-02-18 | 国网上海市电力公司 | Method for controlling heater switch in power distribution cabinet |
| CN105468061A (en) * | 2015-12-16 | 2016-04-06 | 大连尚能科技发展有限公司 | Apparatus for preventing board grade condensation generation |
| CN105628094A (en) * | 2015-12-23 | 2016-06-01 | 湖北仁威电业科技有限公司 | Temperature and humidity acquisition terminal based on temperature complementation and acquisition method thereof |
| CN106020148A (en) * | 2016-05-25 | 2016-10-12 | 江苏利得智能监测科技有限公司 | Novel intelligent frequency conversion dehumidifying system |
| CN106354177A (en) * | 2016-08-31 | 2017-01-25 | 东软集团股份有限公司 | Method and device for controlling working environment of self-service terminal equipment |
| CN107114848A (en) * | 2017-04-24 | 2017-09-01 | 广州市博泰光学科技有限公司 | Electric heating anti-fog eyeglass |
| CN107765743A (en) * | 2017-10-18 | 2018-03-06 | 国网江苏省电力公司南通供电公司 | Power auto-adjustment type switch cubicle temperature and humidity control device based on temperature difference control |
| CN109520088A (en) * | 2018-11-22 | 2019-03-26 | 广东美的制冷设备有限公司 | Refrigerating plant cooling control method, device, refrigerating plant and storage medium |
| CN109579244A (en) * | 2018-11-28 | 2019-04-05 | 广东美的制冷设备有限公司 | Air conditioner cooling control method and device, air conditioner and storage medium |
| CN111103911A (en) * | 2019-12-06 | 2020-05-05 | 珠海格力电器股份有限公司 | Heat dissipation device for mobile equipment and control method thereof |
| CN111103911B (en) * | 2019-12-06 | 2021-11-05 | 珠海格力电器股份有限公司 | Heat dissipation device for mobile equipment and control method thereof |
| CN112462827A (en) * | 2020-10-27 | 2021-03-09 | 国网山东省电力公司临沂供电公司 | Integrated monitoring and treatment method and system for environment of control cubicle |
| CN112965549A (en) * | 2021-02-09 | 2021-06-15 | 杭州小电科技股份有限公司 | Constant temperature control system and constant temperature control method |
| CN112965549B (en) * | 2021-02-09 | 2022-03-01 | 杭州小电科技股份有限公司 | Constant temperature control system and constant temperature control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202583923U (en) | Fuzzy power-adjusting condensation controller | |
| CN201984329U (en) | Electrical energy-saving control device for building | |
| CN204389611U (en) | Based on the power capacitor on-Line Monitor Device of ARM | |
| CN107807695A (en) | A kind of cooling system and method for supporting the autonomous temperature control regulation rotating speed of multi-fan | |
| CN103634572B (en) | A kind of intelligent transmission line patrol communication system based on video surveillance | |
| CN104793671A (en) | Temperature and humidity regulating system and temperature and humidity regulating method of control cubicle of intelligent substation | |
| CN204794036U (en) | DC -DC power converter trouble prediction unit | |
| CN106463979A (en) | Device and method for connecting a battery management system | |
| CN202025032U (en) | Electronic mutual inductor with on-line state monitoring | |
| CN109751863A (en) | Crop dryer monitoring system | |
| CN110212560B (en) | Remote control photovoltaic power generation-based common-network countercurrent-preventing thermal energy storage control device and method | |
| CN206094287U (en) | Heat exchange station automatic control system | |
| CN105305428A (en) | Method and system for improving reliability of wind prediction system by use of double-redundancy mode | |
| CN204667227U (en) | A kind ofly can identify temperature thus control the IDC cabinet PDU of rotation speed of the fan | |
| CN109946960B (en) | Data acquisition cabinet | |
| CN109765946A (en) | A kind of transformer temperature controller and control method | |
| CN201414024Y (en) | Microprocessor based DC power cabinet | |
| CN106961099A (en) | A kind of DC distribution net busbar voltage control system and its control method | |
| CN204595655U (en) | A kind of intelligent substation convergence control cabinet temperature humidity regulating system | |
| CN203217402U (en) | Transformer cooling control electronic device | |
| CN206877180U (en) | A kind of circuit breaker mechanism case temperature and humidity control device and unified monitoring system | |
| CN215491849U (en) | Room temperature collection system and system | |
| CN206389119U (en) | A kind of SVG control systems for multistage bus | |
| CN205944786U (en) | Synthesize switch board with monitored control system | |
| CN205665601U (en) | Cabinet body wetness monitoring system and wind generating set's automatically controlled cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20121205 Termination date: 20150503 |
|
| EXPY | Termination of patent right or utility model |