CN203223407U - Air cooling controller of switch cabinet - Google Patents
Air cooling controller of switch cabinet Download PDFInfo
- Publication number
- CN203223407U CN203223407U CN 201320266276 CN201320266276U CN203223407U CN 203223407 U CN203223407 U CN 203223407U CN 201320266276 CN201320266276 CN 201320266276 CN 201320266276 U CN201320266276 U CN 201320266276U CN 203223407 U CN203223407 U CN 203223407U
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- integrated control
- fan
- control circuitry
- blower fan
- switch
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Abstract
An air cooling controller of a switch cabinet solves the problems that a fan in the prior art is started frequently and is short in service life, and a main circuit is disconnected when the fan is damaged, so that the production schedule is affected. The air cooling controller of the switch cabinet comprises an integrated control circuit and a fan, and is characterized in that the fan is arranged on a bearing beam at the inner side of the switch cabinet provided with a circuit interrupter, a copper busbar and related electronic control units, the air direction of the fan corresponds to that of the circuit interrupter or/and the copper busbar, the fan is connected with the integrated control circuit through an output signal line, the input end of the integrated control circuit is respectively connected with the output end of a current transformer and the output end of a temperature sensor, the output end of the integrated control circuit is connected with a background control unit, a control switch is arranged in the integrated control circuit, and the control switch starts the fan when a load current is larger than or equal to 80% of a rated current and the detected temperature of the temperature sensor is larger than or equal to a rated temperature. The air cooling controller of the switch cabinet is simple and reasonable in structure, is convenient to use, prolongs the service life of the fan, avoids machine stopping in the production process, lowers productive maintenance cost, and gives out an alarm timely.
Description
Technical field
The utility model relates to a kind of power control unit technical field, is the air-cooled controller of a kind of switch cubicle specifically.
Background technique
Along with the development of society, the continuous progress of science and technology, electricity consumption and the control panel in each field of industry maximize gradually; For guaranteeing the main equipment safe operation, then large-scale electric current metal armouring closed switch cabinet is indispensable.The large-scale electric current metal armouring closed switch cabinet of producing at present, too high for preventing temperature rise during operation, the general wind cooling temperature lowering that adopts, manufacturer adopts dual mode control blower fan to carry out wind cooling temperature lowering now: a kind of is to adopt main circuit current as the running of criterion control blower fan; Another kind of then adopt ambient temperature as the running of criterion control blower fan.
But there is following shortcoming in above-mentioned dual mode: first kind because the current load value constantly changes, thereby makes fan starting frequent, and fan life is obviously shortened; After blower fan damages, major loop is had a power failure cause load outage influence to produce; Second kind because variation of ambient temperature difference is big, thereby makes the blower fan frequent starting easily, easily causes the blower fan false tripping, and fan life is shortened; And, after causing blower fan to damage, the fan operation state can't be accurately monitored, and the operations staff can not be notified at once.
The model utility content
The purpose of this utility model provides a kind of, has solved in the prior art that fan starting is frequent, fan life short, blower fan damages the major loop problems such as influencing manufacturing schedule that has a power failure.It is simple and reasonable, and is easy to use, effectively prolongs blower fan working life, avoids producing and shuts down, and reduces the production maintenance cost and in time reports to the police.
The purpose of this utility model is achieved in that it comprises integrated control circuitry, blower fan, its technological points is: the switch cubicle medial branch bolster that has circuit breaker, copper bar bus and related electric control unit is provided with blower fan, the wind direction of described blower fan with circuit breaker or/and the copper bar bus is corresponding; Described blower fan is connected with integrated control circuitry by output signal line, and the input end of integrated control circuitry then is connected with the output terminal of current transformer and temperature transducer respectively by input signal cable; The output terminal of described integrated control circuitry also links to each other with background control unit; In integrated control circuitry, also be provided with simultaneously and satisfy: when load current starts the control switch of blower fan during more than or equal to rated temperature more than or equal to rated current 80% and temperature transducer detected temperatures.
Described temperature transducer is arranged near circuit breaker or/and on the position of copper bar bus.
The output terminal of described integrated control circuitry links to each other with the input end of warning circuit.
Also be provided with fault feedback signal connecting line between blower fan and the integrated control circuitry, then be connected with the input end of standby fan at the output terminal of integrated control circuitry.
Advantage of the present utility model and beneficial effect are as follows: the electric current in the utility model employing primary circuit and metal armouring switch cubicle inside temperature start blower fan after satisfied two conditions simultaneously and lower the temperature as criterion, prevent the blower fan frequent starting.Adopt active and standby two complete equipment automatic switchings, after main air blower damaged, standby fan in time dropped into, the main air blower acoustooptic alarm on the spot of reporting to the police to the backstage simultaneously simultaneously, do not influence the equipment normal power supply, thereby guarantee the stable operation of metal armouring switch cubicle, solve and burn circuit breaker and short circuit accident after blower fan damages.
Description of drawings
Fig. 1 is the utility model circuit block diagram;
Fig. 2 is the utility model circuit principle structure schematic representation;
Fig. 3 is side-looking structural representation of the present utility model.
The symbol description of accompanying drawing major component: 1 ~ 14 tenminal block, 21 circuit breakers, 22 blower fans, 23 switch cubicles, TA current transformer, WK temperature controller, HA buzzer, RD warning light, FJ1 main air blower, FJ2 standby fan, T1 temperature transducer, FAK air quantity switch, K1 first relay, K2 second relay, K3 the 3rd relay.
Below in conjunction with accompanying drawing and by example model utility is described in further detail; but following example only is the utility model example wherein; do not represent the rights protection scope that the utility model limits, rights protection scope of the present utility model is as the criterion with claim.
Embodiment
According to Fig. 1 ~ Fig. 3 structure of the present utility model is described further.The air-cooled controller of this switch cubicle comprises integrated control circuitry, blower fan 22 parts such as grade.The switch cubicle 23 medial branch bolsters that have circuit breaker 21, copper bar bus and related electric control unit are provided with blower fan 22, and the wind direction of blower fan 22 is corresponding with circuit breaker and copper bar bus.Blower fan 22 is connected with integrated control circuitry by output signal line.Wherein blower fan 22 is divided into blower fan FJ1 and standby fan FJ2.Also be provided with fault feedback signal connecting line between blower fan FJ1 and the integrated control circuitry, then be connected with the input end of standby fan at the output terminal of integrated control circuitry.The input end of integrated control circuitry then is connected with the output terminal of temperature transducer T1 with current transformer TA respectively by input signal cable, and temperature transducer TA is arranged near on the position of circuit breaker 21.Be that integrated control circuitry comprises by the current control circuit of current transformer TA input current signal with by the temperature-control circuit of temperature transducer T1 input signal.The output terminal of integrated control circuitry also links to each other with background control unit.In integrated control circuitry, also be provided with simultaneously and satisfy: when load current starts the control switch of blower fan during more than or equal to rated temperature (rated temperature is set according to the switch cubicle actual conditions) more than or equal to rated current 80% and temperature transducer detected temperatures.Current transformer TA is to integrated control circuitry input overburdening signal, and temperature transducer T1 imports high temperature signal to integrated control circuitry.Under the acting in conjunction of electric current and two signals of temperature, integrated control circuitry drives blower fan FJ1 and starts.When blower fan FJ1 ran well, air quantity switch FAK was off state (namely to integrated control circuitry input fault-free signal).
When blower fan FJ1 breaks down, drive air quantity switch FAK closure, blower fan FJ1 sends trouble signal to integrated control circuitry, and integrated control circuitry is sending actuating signal (the current transformer TA of this moment and temperature transducer T1 are still to integrated control circuitry input standby fan FJ2 actuating signal) to standby fan FJ2.The output terminal of integrated control circuitry links to each other with the input end of the warning circuit that has sound and light of alarm, and when blower fan FJ1 broke down, integrated control circuitry sent signal in order to start buzzer siren HA and open warning light RD to warning circuit.The output terminal of integrated control circuitry also links to each other with background control unit, so that the working order of blower fan FJ1, standby fan FJ2 at any time in the feedback switch cabinet and the information such as working condition in the cabinet.The on-site supervision personnel also can be by the relevant device in the background control unit control switch cabinet.The output terminal of integrated control circuitry links to each other with the input end of standby fan FJ2.In addition, be ease of assembly, at the key node of the air-cooled controller of switch cubicle tenminal block 1 ~ 14 be set.
A kind of controller circuit structure of the present utility model:
At the 3rd relay K 3 two ends tenminal block 1,2 is set, auxiliary contact K3.2, K1.2 two ends in series connection arrange tenminal block 3,4, at auxiliary contact K3.1, K1.1 two ends tenminal block 5,6 is set, at air quantity switch FAK two ends tenminal block 6,7 is set, at the second relay two ends tenminal block 7,8 is set, at auxiliary contact K2.1 two ends tenminal block 9,10 is set, at auxiliary contact K2.2 two ends tenminal block 11,12 is set, at auxiliary contact K2.3 two ends tenminal block 13,14 is set.Wherein the 3rd relay K 3 is driven by current transformer TA, and first relay K 1 is driven by temperature controller WK, and temperature controller WK is by temperature transducer T1(thermocouple) the input temp signal, second relay K 2 is controlled by air quantity switch FAK.K2.1 is the control switch of standby fan FJ2, and K2.2 is the control switch of warning circuit, and K2.3 is the background control unit control switch.
The air-cooled controller working principle of switch cubicle:
When load current 〉=rated current 80% the time, current transformer TA drive the 3rd relay K 3 coils get electric, auxiliary contact K3.1 and K3.2 closure; When temperature transducer T1 detects temperature and is higher than the rated temperature that temperature controller WK sets (rated temperature is set according to the switch cubicle actual conditions), temperature transducer T1 is to temperature controller WK input signal, first relay K, 1 coil gets electric, auxiliary contact K1.1 and K1.2 closure.At this moment, K3.2, K1.2 are closed simultaneously, and blower fan FJ1 starts switch cubicle is lowered the temperature.Namely after while satisfied temperature and two conditions of electric current, blower fan FJ1 just can start.After adopting this kind control circuit, can effectively avoid the blower fan frequent starting, and prolong blower fan working life, reduce the production maintenance cost.
When blower fan FJ1 fault (80% of load current 〉=rated current of this moment, temperature surpasses temperature controller WK capping).Air quantity is opened FAK does not have the input of blast signal and closed (being that blower fan FJ1 is to integrated control circuitry input fault signal), this moment first relay K 1 and the 3rd relay K 3 coil still be in electricity condition, be auxiliary contact K3.1 and K1.1 closure, second relay K, 2 coils get electric, auxiliary contact K2.1, K2.2 and K2.3 closure.K2.1 closure (being that integrated control circuitry is to standby fan FJ2 input signal) starts standby fan FJ2; Auxiliary contact K2.2 closure, buzzer HA and warning light start; Auxiliary contact K2.3 closure is to background control unit input alarm signal.
Claims (4)
1. air-cooled controller of switch cubicle, it comprises integrated control circuitry, blower fan is characterized in that: the switch cubicle medial branch bolster that has circuit breaker, copper bar bus and related electric control unit is provided with blower fan, the wind direction of described blower fan with circuit breaker or/and the copper bar bus is corresponding; Described blower fan is connected with integrated control circuitry by output signal line, and the input end of integrated control circuitry then is connected with the output terminal of current transformer and temperature transducer respectively by input signal cable; The output terminal of described integrated control circuitry also links to each other with background control unit; In integrated control circuitry, also be provided with simultaneously and satisfy: when load current starts the control switch of blower fan during more than or equal to rated temperature more than or equal to rated current 80% and temperature transducer detected temperatures.
2. the air-cooled controller of switch cubicle according to claim 1 is characterized in that: described temperature transducer is arranged near circuit breaker or/and on the position of copper bar bus.
3. the air-cooled controller of switch cubicle according to claim 1, it is characterized in that: the output terminal of described integrated control circuitry links to each other with the input end of warning circuit.
4. the air-cooled controller of switch cubicle according to claim 1 is characterized in that: also be provided with fault feedback signal connecting line between blower fan and the integrated control circuitry, then be connected with the input end of standby fan at the output terminal of integrated control circuitry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320266276 CN203223407U (en) | 2013-05-16 | 2013-05-16 | Air cooling controller of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320266276 CN203223407U (en) | 2013-05-16 | 2013-05-16 | Air cooling controller of switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203223407U true CN203223407U (en) | 2013-10-02 |
Family
ID=49250411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320266276 Expired - Lifetime CN203223407U (en) | 2013-05-16 | 2013-05-16 | Air cooling controller of switch cabinet |
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| CN (1) | CN203223407U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104902731A (en) * | 2015-05-13 | 2015-09-09 | 厦门科华恒盛股份有限公司 | Method for improving reliability of hybrid cooling system |
| CN106909184A (en) * | 2017-05-11 | 2017-06-30 | 苏州工业园区驿力机车科技股份有限公司 | A kind of temperature control blower fan system |
| CN108471069A (en) * | 2018-05-29 | 2018-08-31 | 广东电网有限责任公司 | Automatic temperature control switch cabinet |
| CN108757535A (en) * | 2018-05-30 | 2018-11-06 | 天津平高智能电气有限公司 | Fan operation monitoring method, system and blower fan system |
| CN109505791A (en) * | 2018-06-27 | 2019-03-22 | 成都富强电子电器科技有限公司 | A kind of fire-fighting Double Speed Fan intelligent controller |
| CN113323906A (en) * | 2021-07-08 | 2021-08-31 | 广东电网有限责任公司 | Adjusting and controlling method for cooling fan of switch cabinet |
| CN114242489A (en) * | 2021-11-01 | 2022-03-25 | 中国长江三峡集团有限公司 | Distributed modulation type forced air cooling method of solid-state direct-current circuit breaker |
-
2013
- 2013-05-16 CN CN 201320266276 patent/CN203223407U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104902731A (en) * | 2015-05-13 | 2015-09-09 | 厦门科华恒盛股份有限公司 | Method for improving reliability of hybrid cooling system |
| CN104902731B (en) * | 2015-05-13 | 2017-10-13 | 厦门科华恒盛股份有限公司 | The method for improving mixing cooling system reliability |
| CN106909184A (en) * | 2017-05-11 | 2017-06-30 | 苏州工业园区驿力机车科技股份有限公司 | A kind of temperature control blower fan system |
| CN108471069A (en) * | 2018-05-29 | 2018-08-31 | 广东电网有限责任公司 | Automatic temperature control switch cabinet |
| CN108471069B (en) * | 2018-05-29 | 2023-05-26 | 广东电网有限责任公司 | Automatic temperature control switch cabinet |
| CN108757535A (en) * | 2018-05-30 | 2018-11-06 | 天津平高智能电气有限公司 | Fan operation monitoring method, system and blower fan system |
| CN108757535B (en) * | 2018-05-30 | 2024-10-01 | 天津平高智能电气有限公司 | Fan operation monitoring method and system and fan system |
| CN109505791A (en) * | 2018-06-27 | 2019-03-22 | 成都富强电子电器科技有限公司 | A kind of fire-fighting Double Speed Fan intelligent controller |
| CN109505791B (en) * | 2018-06-27 | 2024-02-09 | 成都富强电子电器科技有限公司 | Intelligent controller of fire-fighting double-speed fan |
| CN113323906A (en) * | 2021-07-08 | 2021-08-31 | 广东电网有限责任公司 | Adjusting and controlling method for cooling fan of switch cabinet |
| CN114242489A (en) * | 2021-11-01 | 2022-03-25 | 中国长江三峡集团有限公司 | Distributed modulation type forced air cooling method of solid-state direct-current circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131002 |
|
| CX01 | Expiry of patent term |