CN202586288U - Overpressure and overheat protective device - Google Patents
Overpressure and overheat protective device Download PDFInfo
- Publication number
- CN202586288U CN202586288U CN 201220250575 CN201220250575U CN202586288U CN 202586288 U CN202586288 U CN 202586288U CN 201220250575 CN201220250575 CN 201220250575 CN 201220250575 U CN201220250575 U CN 201220250575U CN 202586288 U CN202586288 U CN 202586288U
- Authority
- CN
- China
- Prior art keywords
- intermediate relay
- normally opened
- opened contact
- normally
- leading
- 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
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to an overpressure and overheat protective device, and belongs to the motor safety protective device technology field. The solved technical problem is that a safety protective device which combines the overpressure protection with the overheat protection is provided. The adopted scheme is that the overpressure and overheat protective device includes a stop button AT1, a start button AQ2, an alternating current contactor CJ1, a pressure sensor YL1, an intermediate relay ZJ1, an intermediate relay ZJ2, a heat protector RJ1, and indicating lamps; in a motor main circuit, an incoming terminal a knife switch DK1 is connected with an A, B, C three-phase power supply, and an outgoing terminal of the knife switch DK1 is connected in series with a main contact CJ1-3 of the alternating current contactor CJ1 and the heat protector RJ1, and then is connected with a motor M1. The overpressure and overheat protective device is simple in structure, high in reliability, and is suitable for the motor safety protection field.
Description
Technical field
A kind of overvoltage overtemperature protection system of the utility model belongs to motor safety protective device technical field.
Background technology
Motor device generally is furnished with safety device, shows to take into account the internals of complete various processes effect; Safety guard is the on-the-spot indispensable safety attachment of motor device that uses, and when breaking down in the equipment operation, safety guard not only can send alarm signal, reminds the staff, can also implement safeguard measure.
Traditional safety guard function singleness can not be taked the different protection measure to the different faults that occurs in the equipment operation, possibly cause serious accident; Therefore be badly in need of providing a kind of defencive function comprehensive safety device.
Summary of the invention
For overcoming the deficiency that prior art exists, the utility model technical problem to be solved is: provide a kind of and collect overvoltage protection and overtemperature protection is the safety guard of one.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of overvoltage overtemperature protection system comprises stop button AT1, start button AQ2, A.C. contactor CJ1, pressure sensor YL1, intermediate relay ZJ 1, intermediate relay ZJ 2, thermal protector RJ1 and indicator light;
The coil CJ1-1 of A.C. contactor CJ1, its normally opened contact CJ1-2, main contacts CJ1-3;
Pressure sensor YL1, its normally opened contact YL1-1;
The coil ZJ1-1 of intermediate relay ZJ 1, its normally opened contact ZJ1-2, normally-closed contact ZJ1-3;
The coil ZJ2-1 of intermediate relay ZJ 2, its normally opened contact ZJ2-2, normally-closed contact ZJ2-3;
Thermal protector RJ1, its normally opened contact RJ1-1.
In the motor main circuit, the end of incoming cables of knife switch DK1 links to each other with three phase mains, links to each other with motor M 1 behind the main contacts CJ1-3 of the leading-out terminal of knife switch DK1 serial connection A.C. contactor CJ1 and the thermal protector RJ1.
In the control circuit; The end of fuse RD1 links to each other with power end is anodal; The other end of fuse RD1 links to each other with the end of fuse RD2 after being connected in series the normally-closed contact ZJ2-3 of normally-closed contact ZJ1-3 and intermediate relay ZJ 2 of coil CJ1-1, intermediate relay ZJ 1 of stop button AT1, start button AQ2, A.C. contactor CJ1 successively, and the other end of fuse RD2 links to each other with the power end negative pole.
The normally opened contact CJ1-2 of A.C. contactor CJ1 is attempted by the two ends of start button AQ2, and indicator light HD1 is attempted by the two ends of the coil CJ1-1 of A.C. contactor CJ1.
The end of incoming cables of the normally opened contact YL1-1 of pressure sensor YL1 links to each other with the end of incoming cables of start button AQ2 successively and after connecing the end of incoming cables of normally opened contact ZJ2-2 of end of incoming cables and intermediate relay ZJ 2 of normally opened contact RJ1-1 of end of incoming cables, thermal protector RJ1 of the normally opened contact ZJ1-2 of intermediate relay ZJ 1; Link to each other with the leading-out terminal of the normally-closed contact ZJ2-3 of intermediate relay ZJ 2 behind the coil ZJ1-1 of the leading-out terminal of the normally opened contact YL1-1 of pressure sensor YL1 serial connection intermediate relay ZJ 1; Link to each other with the leading-out terminal of the normally-closed contact ZJ2-3 of intermediate relay ZJ 2 behind the leading-out terminal of the normally opened contact ZJ1-2 of the intermediate relay ZJ 1 serial connection indicator light HD2; Link to each other with the leading-out terminal of the normally-closed contact ZJ2-3 of intermediate relay ZJ 2 behind the coil ZJ2-1 of the leading-out terminal of the normally opened contact RJ1-1 of thermal protector RJ1 serial connection intermediate relay ZJ 2; Link to each other with the leading-out terminal of the normally-closed contact ZJ2-3 of intermediate relay ZJ 2 behind the leading-out terminal of the normally opened contact ZJ2-2 of the intermediate relay ZJ 2 serial connection indicator light HD3.
Indicator light HD2 is attempted by the two ends of the coil ZJ1-1 of intermediate relay ZJ 1, and indicator light HD3 is attempted by the two ends of the coil ZJ2-1 of intermediate relay ZJ 2.
The beneficial effect that the utility model compared with prior art has is: in the utility model over-voltage protecting function and overheat protective function are integrated in the device; When overvoltage fault or overheating fault appear in equipment operation; Corresponding protection circuit in the device can both in time respond, and takes corresponding measure automatically; The utility model adopts traditional components and parts such as A.C. contactor, pressure sensor, thermal protector and auxiliary relay to constitute a complete a kind of overvoltage overtemperature protection system, and simple in structure, cost is lower, and reliability is high; When practicing thrift cost, effectively guaranteed equipment and personnel's safety.
Description of drawings
Below in conjunction with accompanying drawing the embodiment of the utility model is done further detailed explanation:
Fig. 1 is the circuit diagram of motor main circuit in the utility model;
The control circuit figure of motor in Fig. 2 the utility model.
Embodiment
As depicted in figs. 1 and 2, a kind of overvoltage overtemperature protection system of the utility model comprises stop button AT1, start button AQ2, A.C. contactor CJ1, pressure sensor YL1, intermediate relay ZJ 1, intermediate relay ZJ 2, thermal protector RJ1 and indicator light;
The coil CJ1-1 of A.C. contactor CJ1, its normally opened contact CJ1-2, main contacts CJ1-3;
Pressure sensor YL1, its normally opened contact YL1-1;
The coil ZJ1-1 of intermediate relay ZJ 1, its normally opened contact ZJ1-2, normally-closed contact ZJ1-3;
The coil ZJ2-1 of intermediate relay ZJ 2, its normally opened contact ZJ2-2, normally-closed contact ZJ2-3;
Thermal protector RJ1, its normally opened contact RJ1-1.
In the motor main circuit, the end of incoming cables of knife switch DK1 links to each other with A, B, C three phase mains, links to each other with motor M 1 behind the main contacts CJ1-3 of the leading-out terminal of knife switch DK1 serial connection A.C. contactor CJ1 and the thermal protector RJ1; Knife switch DK1 when the motor main circuit breaks down, manually breaks off knife switch DK1 as the master switch of motor main circuit, cuts off the power supply input of motor main circuit, but the safety inspection working line.
In the control circuit; The end of fuse RD1 links to each other with power end is anodal; The other end of fuse RD1 links to each other with the end of fuse RD2 after being connected in series the normally-closed contact ZJ2-3 of normally-closed contact ZJ1-3 and intermediate relay ZJ 2 of coil CJ1-1, intermediate relay ZJ 1 of stop button AT1, start button AQ2, A.C. contactor CJ1 successively, and the other end of fuse RD2 links to each other with the power end negative pole; The power end of above-mentioned control circuit can with the three-phase AC line of knife switch DK1 leading-out terminal in any two link to each other.
The normally opened contact CJ1-2 of A.C. contactor CJ1 is attempted by the two ends of start button AQ2, and indicator light HD1 is attempted by the two ends of the coil CJ1-1 of A.C. contactor CJ1.
The end of incoming cables of the normally opened contact YL1-1 of pressure sensor YL1 links to each other with the end of incoming cables of start button AQ2 successively and after connecing the end of incoming cables of normally opened contact ZJ2-2 of end of incoming cables and intermediate relay ZJ 2 of normally opened contact RJ1-1 of end of incoming cables, thermal protector RJ1 of the normally opened contact ZJ1-2 of intermediate relay ZJ 1; Link to each other with the leading-out terminal of the normally-closed contact ZJ2-3 of intermediate relay ZJ 2 behind the coil ZJ1-1 of the leading-out terminal of the normally opened contact YL1-1 of pressure sensor YL1 serial connection intermediate relay ZJ 1; Link to each other with the leading-out terminal of the normally-closed contact ZJ2-3 of intermediate relay ZJ 2 behind the leading-out terminal of the normally opened contact ZJ1-2 of the intermediate relay ZJ 1 serial connection indicator light HD2; Link to each other with the leading-out terminal of the normally-closed contact ZJ2-3 of intermediate relay ZJ 2 behind the coil ZJ2-1 of the leading-out terminal of the normally opened contact RJ1-1 of thermal protector RJ1 serial connection intermediate relay ZJ 2; Link to each other with the leading-out terminal of the normally-closed contact ZJ2-3 of intermediate relay ZJ 2 behind the leading-out terminal of the normally opened contact ZJ2-2 of the intermediate relay ZJ 2 serial connection indicator light HD3.
Indicator light HD2 is attempted by the two ends of the coil ZJ1-1 of intermediate relay ZJ 1, and indicator light HD3 is attempted by the two ends of the coil ZJ2-1 of intermediate relay ZJ 2.
In the utility model, closed knife switch DK1, conducting motor main circuit is pressed start button AQ2, turn-on control circuit, the main contacts CJ1-3 of A.C. contactor CJ1 gets electric adhesive, and motor M 1 starts operation, and the indicator light HD1 of indication motor M1 running status is bright.
The force value that pressure sensor YL1 in a kind of overvoltage overtemperature protection system is used to gather motor device; When the force value of motor device reaches the set point of pressure sensor YL1; The normally opened contact YL1-1 adhesive of pressure sensor YL1; The normally opened contact ZJ1-2 of intermediate relay ZJ 1 gets electric adhesive, and HD2 is bright for the over voltage alarm indicator light; The normally-closed contact ZJ1-3 of intermediate relay ZJ 1 gets electric disconnection simultaneously, and the main contacts CJ1-3 dead electricity of A.C. contactor CJ1 is broken off, and motor M 1 is out of service, and the indicator light HD1 of indication motor M1 running status extinguishes; Press stop button AT1, over voltage alarm indicator light HD2 extinguishes, and withdraws from the overvoltage protection state.
When motor M 1 overload, the normally opened contact RJ1-1 adhesive of thermal protector RJ1, the normally opened contact ZJ2-2 of intermediate relay ZJ 2 gets electric adhesive, and HD3 is bright for the temperature alarm indicator light; The normally-closed contact ZJ2-3 of intermediate relay ZJ 2 gets electric disconnection simultaneously, and the main contacts CJ1-3 dead electricity of A.C. contactor CJ1 is broken off, and motor M 1 is out of service, and the indicator light HD1 of indication motor M1 running status extinguishes; Press stop button AT1, temperature alarm indicator light HD3 extinguishes, and withdraws from the overtemperature protection state.
In the utility model over-voltage protecting function and overheat protective function are integrated in the device, when overvoltage fault or overheating fault appearred in equipment operation, the corresponding protection circuit in the device can both in time respond, and takes measures automatically; The utility model adopts traditional components and parts such as A.C. contactor, pressure sensor, thermal protector and auxiliary relay to constitute a complete a kind of overvoltage overtemperature protection system, and simple in structure, cost is lower, and reliability is high; When practicing thrift cost, effectively guaranteed equipment and personnel's safety.
Claims (1)
1. an overvoltage overtemperature protection system comprises stop button AT1, start button AQ2, A.C. contactor CJ1, pressure sensor YL1, intermediate relay ZJ 1, intermediate relay ZJ 2, thermal protector RJ1 and indicator light;
The coil CJ1-1 of A.C. contactor CJ1, its normally opened contact CJ1-2, main contacts CJ1-3;
Pressure sensor YL1, its normally opened contact YL1-1;
The coil ZJ1-1 of intermediate relay ZJ 1, its normally opened contact ZJ1-2, normally-closed contact ZJ1-3;
The coil ZJ2-1 of intermediate relay ZJ 2, its normally opened contact ZJ2-2, normally-closed contact ZJ2-3;
Thermal protector RJ1, its normally opened contact RJ1-1;
It is characterized in that: in the motor main circuit, the end of incoming cables of knife switch DK1 links to each other with three phase mains, links to each other with motor M 1 behind the main contacts CJ1-3 of the leading-out terminal of knife switch DK1 serial connection A.C. contactor CJ1 and the thermal protector RJ1;
In the control circuit; The end of fuse RD1 links to each other with power end is anodal; The other end of fuse RD1 links to each other with the end of fuse RD2 after being connected in series the normally-closed contact ZJ2-3 of normally-closed contact ZJ1-3 and intermediate relay ZJ 2 of coil CJ1-1, intermediate relay ZJ 1 of stop button AT1, start button AQ2, A.C. contactor CJ1 successively, and the other end of fuse RD2 links to each other with the power end negative pole;
The normally opened contact CJ1-2 of A.C. contactor CJ1 is attempted by the two ends of start button AQ2, and indicator light HD1 is attempted by the two ends of the coil CJ1-1 of A.C. contactor CJ1;
The end of incoming cables of the normally opened contact YL1-1 of pressure sensor YL1 links to each other with the end of incoming cables of start button AQ2 successively and after connecing the end of incoming cables of normally opened contact ZJ2-2 of end of incoming cables and intermediate relay ZJ 2 of normally opened contact RJ1-1 of end of incoming cables, thermal protector RJ1 of the normally opened contact ZJ1-2 of intermediate relay ZJ 1; Link to each other with the leading-out terminal of the normally-closed contact ZJ2-3 of intermediate relay ZJ 2 behind the coil ZJ1-1 of the leading-out terminal of the normally opened contact YL1-1 of pressure sensor YL1 serial connection intermediate relay ZJ 1; Link to each other with the leading-out terminal of the normally-closed contact ZJ2-3 of intermediate relay ZJ 2 behind the leading-out terminal of the normally opened contact ZJ1-2 of the intermediate relay ZJ 1 serial connection indicator light HD2; Link to each other with the leading-out terminal of the normally-closed contact ZJ2-3 of intermediate relay ZJ 2 behind the coil ZJ2-1 of the leading-out terminal of the normally opened contact RJ1-1 of thermal protector RJ1 serial connection intermediate relay ZJ 2; Link to each other with the leading-out terminal of the normally-closed contact ZJ2-3 of intermediate relay ZJ 2 behind the leading-out terminal of the normally opened contact ZJ2-2 of the intermediate relay ZJ 2 serial connection indicator light HD3;
Indicator light HD2 is attempted by the two ends of the coil ZJ1-1 of intermediate relay ZJ 1, and indicator light HD3 is attempted by the two ends of the coil ZJ2-1 of intermediate relay ZJ 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220250575 CN202586288U (en) | 2012-05-31 | 2012-05-31 | Overpressure and overheat protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220250575 CN202586288U (en) | 2012-05-31 | 2012-05-31 | Overpressure and overheat protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202586288U true CN202586288U (en) | 2012-12-05 |
Family
ID=47255656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220250575 Expired - Fee Related CN202586288U (en) | 2012-05-31 | 2012-05-31 | Overpressure and overheat protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202586288U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684160A (en) * | 2012-05-31 | 2012-09-19 | 襄垣县树元电器有限公司 | Overvoltage and overheating protection device |
| CN103311889A (en) * | 2013-06-29 | 2013-09-18 | 襄垣县树元电器有限公司 | Manual switching protection circuit for dual power supplies |
| CN103346734A (en) * | 2013-06-29 | 2013-10-09 | 襄垣县树元电器有限公司 | Double-power double-fan switch protection circuit |
| CN107658851A (en) * | 2017-11-18 | 2018-02-02 | 襄垣县树元电器有限公司 | Anti- overvoltage overheat energy-conservation rectification protection device |
-
2012
- 2012-05-31 CN CN 201220250575 patent/CN202586288U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684160A (en) * | 2012-05-31 | 2012-09-19 | 襄垣县树元电器有限公司 | Overvoltage and overheating protection device |
| CN103311889A (en) * | 2013-06-29 | 2013-09-18 | 襄垣县树元电器有限公司 | Manual switching protection circuit for dual power supplies |
| CN103346734A (en) * | 2013-06-29 | 2013-10-09 | 襄垣县树元电器有限公司 | Double-power double-fan switch protection circuit |
| CN107658851A (en) * | 2017-11-18 | 2018-02-02 | 襄垣县树元电器有限公司 | Anti- overvoltage overheat energy-conservation rectification protection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201966578U (en) | Arc extinguishing type electrical fireproof short circuit protection device | |
| CN202586288U (en) | Overpressure and overheat protective device | |
| CN102684160A (en) | Overvoltage and overheating protection device | |
| CN102684158A (en) | Overheat delay protection device for motor | |
| CN103311889A (en) | Manual switching protection circuit for dual power supplies | |
| CN202524078U (en) | Arc suppression and overvoltage protection device controller | |
| CN203344867U (en) | Electric vehicle on-cable control box | |
| CN202333747U (en) | Electric leakage protection device of guard ground system | |
| CN101888084A (en) | Open phase protector of motor | |
| CN205123236U (en) | Distribution lines protection device | |
| CN202586838U (en) | Multipath time-delay starting and overheating protection device | |
| CN204303227U (en) | Body sense real training formula Intelligent electric leakage protection system | |
| CN205265226U (en) | High performance electric leakage electric cabinet | |
| CN202586289U (en) | Motor open-phase protector | |
| CN203434594U (en) | Motor overheating delay protection device | |
| CN202586272U (en) | Pressure early warning time-delay protection device | |
| CN208508525U (en) | A kind of grid-connected power generation system arc light protecting device | |
| CN202721433U (en) | Leakage protection and power supply recovery apparatus | |
| CN202586284U (en) | Motor overheating delay protection device | |
| CN203434595U (en) | Dual power supply manual switch protection circuit | |
| CN203180491U (en) | Electric leakage protection device | |
| CN202134903U (en) | Electrical line short circuit current limit and protection device | |
| CN201994154U (en) | Full-insulating lightning protection device | |
| CN102684150A (en) | Pressure pre-warning and delay protection device | |
| CN102684161A (en) | Default phase protection device of motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: BEIJING ZHENXING HUALONG REFRIGERATION ENGINEERING CO., LTD. Assignor: Xiangyuan Shuyuan Electrical Appliance Co., Ltd. Contract record no.: 2014990000348 Denomination of utility model: Overpressure and overheat protective device Granted publication date: 20121205 License type: Exclusive License Record date: 20140526 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20160531 |