CN104114012A - Control cabinet suitable for outdoor application of general frequency converter, and control method thereof - Google Patents
Control cabinet suitable for outdoor application of general frequency converter, and control method thereof Download PDFInfo
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- CN104114012A CN104114012A CN201410243200.XA CN201410243200A CN104114012A CN 104114012 A CN104114012 A CN 104114012A CN 201410243200 A CN201410243200 A CN 201410243200A CN 104114012 A CN104114012 A CN 104114012A
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- control cubicle
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Abstract
The invention discloses a control cabinet suitable for outdoor application of a general frequency converter, and a control method thereof. The control cabinet comprises a cabinet body, an internal forced air-discharge channel arranged in the control cabinet, and a frequency converter. The frequency converter is arranged below the internal forced air-discharge channel, the air outlet of the frequency converter communicates with the bottom of the internal forced air-discharge channel, the control cabinet is also provided with a semiconductor heater and multiple heat dissipation fans, and the internal temperature of the control cabinet is regulated and controlled through the switching-on and switching-off of the semiconductor heater and the multiple heat dissipation fans. According to the invention, it is ensured that the internal temperature of the general frequency converter control cabinet is between 0 DEG C to 50 DEG C, safe and realizable operation of the frequency converter is guaranteed, and the problem is solved that the general frequency converter cannot be used in an outdoor high-temperature environment and an ultralow-temperature environment condition.
Description
Technical field
The present invention relates to a kind of control cubicle, relate in particular to a kind of control cubicle and control method thereof that is applicable to the outdoor application of universal frequency converter.
Background technology
Frequency converter is as a kind of frequency control equipment, be widely used in all trades and professions and various environment, but frequency converter is owing to being subject to the restriction of itself interior section electronic component applied environment, though most universal frequency converters can meet the storage environment temperature conditions of-40 DEG C ~ 70 DEG C, but can only be applicable to the running environment requirement of-10 DEG C ~ 50 DEG C, once the running environment of universal frequency converter is lower than-10 DEG C or exceed 50 DEG C, all the normal work that affects frequency converter is even caused to some faults; And can adapt to very high compared with the price of the frequency converter of wide environmental temperature range operation.Most General Converters, in the time that ambient temperature exceedes 40 DEG C, need fall to hold according to temperature and use, and to use high ambient temperature be 50 DEG C.And General Converters is once need outdoor use, in hot summer, the highest temperature of China some areas has reached 44 DEG C of left and right, add the heating (about transducer power 2 ~ 3%) of upconverter itself, therefore, do not increase corresponding measure and process, under hot environment, frequency converter cannot normally be worked certainly.So solve the low temperature environment of the outdoor application of universal frequency converter has become the present invention's research and discussed emphasis with hot environment problem.
Application number is that 201010526361.1 Chinese patents " radiating control cabinet " disclose a kind of radiating control cabinet, there is regulator cubicle door-plate, the blower fan of the bottom mounting strap filter screen cotton of regulator cubicle door-plate, the overhead guard that contains opening of sieve is installed at the top of regulator cubicle door-plate, the lower end of overhead guard is provided with frequency converter, the top of frequency converter installs a coaming plate that prevents heat disturbance additional, and Electric Appliance Cabinet door-plate bottom is provided with sealing ring.This invention can prevent part heat disturbance, but its heat sinking function cannot reach and makes its safe operation under low temperature environment or hot environment.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of can be in the control cubicle and the control method thereof that are applicable to the outdoor application of universal frequency converter of low temperature or hot environment safe operation.
Above-mentioned purpose of the present invention is achieved by following technical solution:
A kind of control cubicle that is applicable to the outdoor application of universal frequency converter, comprise cabinet, air exhaust passage and frequency converter are forced in the inside being located in control cubicle, described frequency converter is located at the inner air exhaust passage below of forcing, described frequency converter air outlet forces the bottom of air exhaust passage to be connected with inside, also be provided with semiconductor heat booster and Duo Tai radiator fan, unlatching by semiconductor heat booster and Duo Tai radiator fan or close the internal temperature of regulation and control control cubicle, in the time that control cubicle internal temperature is too low, open semiconductor heat booster and improve control cubicle internal temperature, in the time that control cubicle internal temperature is too high, open many radiator fans and reduce control cubicle internal temperature.
Further, be provided with the first temperature detect switch (TDS) and the second temperature detect switch (TDS), described the first temperature detect switch (TDS) is connected with many radiator fans, and described the second temperature detect switch (TDS) is connected with semiconductor heat booster.The first temperature detect switch (TDS) and the second temperature detect switch (TDS) are installed on the inner position by the first half of cabinet, wherein the first temperature detect switch (TDS) on circuit, be connected with radiator fan after in the loop of incoming transport 220V, after the second temperature detect switch (TDS) is connected with semiconductor heat booster on circuit in the loop of incoming transport 220V, control the unlatching of many radiator fans or close by the switching of the first temperature detect switch (TDS), control the unlatching of semiconductor heat booster or close by the switching of the second temperature detect switch (TDS).
Described many radiator fans are arranged on the inner air exhaust passage over top of forcing.In the time that control cubicle internal temperature is too high, described many radiator fans are accelerated the heat radiation of frequency converter, make the heat of frequency converter force air exhaust passage to detach out by inside rapidly.Further, described many radiator fans have one to force the top of air exhaust passage to be connected with inside.
Described semiconductor heat booster is located at the below of frequency converter.In the time that control cubicle internal temperature is too low, described semiconductor heat booster is opened in frequency converter below, can within the shorter time, improve control cubicle temperature.
Described control cubicle cabinet comprises bucker, is located at air outlet, bottom return air inlet and the return air inlet filter screen of both sides, control cubicle top.Described air outlet is opened the both sides, top at control cubicle, and to strengthen air outlet area, described bucker and control cubicle cabinet are integrally welded.
Further, the external diameter of described pressure air exhaust passage is a bit larger tham the external diameter of the whole air outlet of frequency converter.
A kind of control method of the control cubicle that is applicable to the outdoor application of universal frequency converter, the internal temperature of described control cubicle is regulated to described the first temperature detect switch (TDS) and disconnects during lower than 30 DEG C at control cubicle cabinet internal temperature, closure in the time that control cubicle cabinet internal temperature exceedes 35 DEG C keeps original disconnection or closed constant in the time that control cubicle internal temperature changes between 30 DEG C ~ 35 DEG C; Described the second temperature detect switch (TDS) is in control cubicle internal temperature closure during lower than 0 DEG C, disconnects during higher than 5 DEG C in the temperature of control cubicle inside, keeps original disconnection or closed constant in the temperature of control cubicle inside in the time changing for 0 DEG C ~ 5 DEG C.
When control cubicle cabinet internal temperature is during lower than 30 DEG C, the contact of the first temperature switch disconnects, radiator fan because of not electricly do not work, the fan inside that the hot-air that frequency converter sheds is carried by frequency converter itself is through forcing air exhaust passage directly to blow out, through control cubicle air outlet discharged to outdoor, in the time that control cubicle cabinet internal temperature exceedes 35 DEG C, the closing of contact of the first temperature detect switch (TDS), radiator fan obtains electric work, the hot-air of control cubicle inside is directly up extracted out, through control cubicle air outlet discharged to outdoor, the Air Flow of cabinet inside tightens control, play the effect of forced cooling, guarantee that control cubicle internal temperature meets the requirement of frequency converter operating ambient temperature, ensure the safe and reliable operation of frequency converter.In the time that control cubicle internal temperature changes between 30 DEG C ~ 35 DEG C, the contact of temperature switch will keep original state constant, and now radiator fan also keeps original state constant.When control cubicle internal temperature is during lower than 0 DEG C, the closing of contact of the second temperature detect switch (TDS), control semiconductor heat booster and obtain electric work, the temperature of control cubicle inside raises, to guarantee in the time that ambient temperature is lower, the temperature of control cubicle inside maintains more than 0 DEG C, ensures the safe operation of low temperature environment low-converter.When the temperature of control cubicle inside is during higher than 5 DEG C, the contact of the second temperature detect switch (TDS) disconnects, and semiconductor heat booster must not quit work by electricity.In the time that the temperature of control cubicle inside changes between 0 DEG C ~ 5 DEG C degree, temperature detect switch (TDS) 2 keeps current state constant, and now, semiconductor heat booster also keeps current state constant.The present invention is ambient temperature height no matter, all can guarantee that the temperature of universal frequency converter control cubicle inside is between 0 DEG C ~ 50 DEG C, guarantee the safe and reliable operation of frequency converter, solved the difficult problem that universal frequency converter uses under hot environment and ultra-low temperature surroundings condition out of doors.
Compared with prior art, beneficial effect of the present invention is as follows:
The present invention is simple in structure, and the unlatching by semiconductor heat booster and Duo Tai radiator fan or the internal temperature of closing regulation and control control cubicle be between 0 DEG C ~ 50 DEG C, makes the frequency converter still can safe and reliable operation under high temperature or low temperature environment;
figure of description
Fig. 1 is structure front view of the present invention; Wherein, 1, bucker; 2, radiator fan; 3, the inner air draft air-guiding aisle of forcing; 4, frequency converter; 6, air outlet; 7, the first temperature detect switch (TDS); 8, the second temperature detect switch (TDS); 9, semiconductor heat booster;
Fig. 2 is structure side view of the present invention;
Fig. 3 is the cutaway view of A-A in Fig. 1, wherein, and 5, return air inlet and return air filter screen;
Fig. 4 is circuit diagram of the present invention, wherein, and 2, radiator fan; 7, the first temperature detect switch (TDS); 8, the second temperature detect switch (TDS); 9, semiconductor heat booster.
Embodiment
Below in conjunction with Figure of description and specific embodiment, the present invention is made further and being elaborated, but embodiment does not limit in any form the present invention.
Embodiment 1
As Fig. 1,2, shown in 3, a kind of control cubicle that is applicable to the outdoor application of universal frequency converter, air exhaust passage 3 and frequency converter 4 are forced in the inside that comprises cabinet, be located in control cubicle, and described frequency converter 4 is located at inner air exhaust passage 3 belows of forcing, and described frequency converter air outlet forces the bottom of air exhaust passage 3 to be connected with inside, also be provided with semiconductor heat booster 9 and three radiator fans 2, the unlatching by semiconductor heat booster 9 and three radiator fans 2 or close the internal temperature of regulation and control control cubicle.
Further, be provided with the first temperature detect switch (TDS) 7 and the second temperature detect switch (TDS) 8, described the first temperature detect switch (TDS) 7 is connected with three radiator fans 2, and described the second temperature detect switch (TDS) 8 is connected with semiconductor heat booster 9.The first temperature detect switch (TDS) 7 and the second temperature detect switch (TDS) 8 are installed on the inner position by the first half of cabinet.
As shown in Figure 4, wherein the first temperature detect switch (TDS) 7 on circuit, be connected with radiator fan 2 after in the loop of incoming transport 220V, after the second temperature detect switch (TDS) 8 is connected with semiconductor heat booster 9 on circuit in the loop of incoming transport 220V, control the unlatching of three radiator fans 2 or close by the switching of the first temperature detect switch (TDS) 7, control the unlatching of semiconductor heat booster or close by the switching of the second temperature detect switch (TDS) 8.
Described three radiator fans are arranged on inner air exhaust passage 3 over top of forcing.Described three radiator fans 2 have one to force the top of air exhaust passage 3 to be connected with inside.Described semiconductor heat booster 9 is located at the below of frequency converter 4.
Described control cubicle cabinet comprises bucker 1, is located at the air outlet 6 of both sides, control cubicle top, bottom return air inlet and return air inlet filter screen 5.Described air outlet 6 is opened the both sides, top at control cubicle, and to strengthen air outlet area, described bucker 1 is integrally welded with control cubicle cabinet.
Further, the external diameter of described pressure air exhaust passage 3 is a bit larger tham the external diameter of the whole air outlet of frequency converter 4.
A kind of control method of the control cubicle that is applicable to the outdoor application of universal frequency converter, the internal temperature of described control cubicle is regulated to described the first temperature detect switch (TDS) 7 and disconnects during lower than 30 DEG C at control cubicle cabinet internal temperature, closure in the time that control cubicle cabinet internal temperature exceedes 35 DEG C keeps original disconnection or closed constant in the time that control cubicle internal temperature changes between 30 DEG C ~ 35 DEG C; Described the second temperature detect switch (TDS) 8 is in control cubicle internal temperature closure during lower than 0 DEG C, disconnects during higher than 5 DEG C in the temperature of control cubicle inside, keeps original disconnection or closed constant in the temperature of control cubicle inside in the time changing for 0 DEG C ~ 5 DEG C.
The present invention taking Beijing a certain concrete project done following actual test and checking as example:
Project main information: universal frequency converter territory of use is Beijing, summer, outdoor historical high temperature was up to 42.6 DEG C.Outdoor maximum temperature in summer is in recent years 40.6 DEG C.Universal frequency converter is that power is the Siemens MM430 frequency converter (its power loss is 1496W) of 37KW, and control cubicle need meet IP54 grade and reach the requirement of outdoor application.Control cubicle is of a size of (long X is high, and X is dark): 650X1000X400, unit: mm, and radiator fan quantity is 3, and impeller diameter is 145 mm, and semiconductor heat booster power is 200W
Apply control cubicle of the present invention and control method, actual test and the result are as follows:
| Outdoor environment temperature | Control cubicle internal temperature | Control cubicle air outlet temperature | Fan-status | Semiconductor heat booster state | Whether meet the requirement of frequency converter operating ambient temperature |
| 44℃ | 46.2℃ | 46.3℃ | Operation | Stop | Meet |
| 42℃ | 43.8℃ | 43.9℃ | Operation | Stop | Meet |
| 40℃ | 42.0℃ | 42.1℃ | Operation | Stop | Meet |
| 38℃ | 39.5℃ | 39.6℃ | Operation | Stop | Meet |
| 30℃ | 31.4℃ | 31.5℃ | Stop | Stop | Meet |
| -5℃ | 3℃ | 3℃ | Stop | Operation | Meet |
| -15℃ | 2.7℃ | 2.7℃ | Stop | Operation | Meet |
| -40℃ | 2℃ | 2℃ | Stop | Operation | Meet |
Draw from above actual test and the result, apply after control cubicle of the present invention and control method, between ambient temperature-40 DEG C ~ 44 DEG C, all can ensure that frequency converter operating ambient temperature of living in, between 0 DEG C ~ 50 DEG C, meets the requirement of frequency converter safe and reliable operation.
Claims (9)
1. one kind is applicable to the control cubicle of the outdoor application of universal frequency converter, air exhaust passage and frequency converter are forced in the inside that comprises cabinet, be located in control cubicle, described frequency converter is located at the inner air exhaust passage below of forcing, described frequency converter air outlet forces the bottom of air exhaust passage to be connected with inside, it is characterized in that, in control cubicle, be also provided with semiconductor heat booster and Duo Tai radiator fan, the unlatching by semiconductor heat booster and Duo Tai radiator fan or close the internal temperature of regulation and control control cubicle.
2. the control cubicle that is applicable to the outdoor application of universal frequency converter according to claim 1, it is characterized in that, be provided with the first temperature detect switch (TDS) and the second temperature detect switch (TDS), described the first temperature detect switch (TDS) is connected with many radiator fans, and described the second temperature detect switch (TDS) is connected with semiconductor heat booster.
3. the control cubicle that is applicable to the outdoor application of universal frequency converter according to claim 1, is characterized in that, described many radiator fans are arranged on the inner air exhaust passage over top of forcing.
4. the control cubicle that is applicable to the outdoor application of universal frequency converter according to claim 3, is characterized in that, described many radiator fans have one to force the top of air exhaust passage to be connected with inside.
5. the control cubicle that is applicable to the outdoor application of universal frequency converter according to claim 1, is characterized in that, described semiconductor heat booster is located at the below of frequency converter.
6. the control cubicle that is applicable to the outdoor application of universal frequency converter according to claim 1, is characterized in that, described control cubicle cabinet comprises bucker, is located at the air outlet of both sides, control cubicle top, bottom return air inlet and return air inlet filter screen.
7. the control cubicle that is applicable to the outdoor application of universal frequency converter according to claim 1, is characterized in that, the external diameter of described pressure air exhaust passage is a bit larger tham the external diameter of the whole air outlet of frequency converter.
8. according to the control method of the control cubicle that is applicable to the outdoor application of universal frequency converter described in claim 1 ~ 6 any one, it is characterized in that, in the time that control cubicle internal temperature is too low, open semiconductor heat booster and improve control cubicle internal temperature, in the time that control cubicle internal temperature is too high, open many radiator fans and reduce control cubicle internal temperature.
9. the control method of the control cubicle that is applicable to the outdoor application of universal frequency converter according to claim 8, it is characterized in that, the internal temperature of described control cubicle is regulated to described the first temperature detect switch (TDS) and disconnects during lower than 30 DEG C at control cubicle cabinet internal temperature, closure in the time that control cubicle cabinet internal temperature exceedes 35 DEG C keeps original disconnection or closed constant in the time that control cubicle internal temperature changes between 30 DEG C ~ 35 DEG C; Described the second temperature detect switch (TDS) is in control cubicle internal temperature closure during lower than 0 DEG C, disconnects during higher than 5 DEG C in the temperature of control cubicle inside, keeps original disconnection or closed constant in the temperature of control cubicle inside in the time changing for 0 DEG C ~ 5 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410243200.XA CN104114012B (en) | 2014-06-03 | 2014-06-03 | Control cabinet suitable for outdoor application of general frequency converter, and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410243200.XA CN104114012B (en) | 2014-06-03 | 2014-06-03 | Control cabinet suitable for outdoor application of general frequency converter, and control method thereof |
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| CN104114012A true CN104114012A (en) | 2014-10-22 |
| CN104114012B CN104114012B (en) | 2017-04-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712845A (en) * | 2018-05-29 | 2018-10-26 | 北京中农精准科技有限公司 | A kind of electrical control cabinet |
| CN111056471A (en) * | 2020-03-03 | 2020-04-24 | 宝鸡巨菱钻采设备有限责任公司 | Lifting device for oil drilling machine based on alternating-current variable-frequency electric winch |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201927915U (en) * | 2010-12-30 | 2011-08-10 | 江苏兆胜空调有限公司 | Radiating and dehumidifying device for marine electrical control box |
| CN203014654U (en) * | 2012-11-28 | 2013-06-19 | 深圳市安邦信电子有限公司 | Frequency converter structure |
| CN203387391U (en) * | 2013-07-19 | 2014-01-08 | 深圳市英威腾电气股份有限公司 | Outdoor frequency converter |
-
2014
- 2014-06-03 CN CN201410243200.XA patent/CN104114012B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712845A (en) * | 2018-05-29 | 2018-10-26 | 北京中农精准科技有限公司 | A kind of electrical control cabinet |
| CN108712845B (en) * | 2018-05-29 | 2021-03-19 | 北京中农精准科技有限公司 | Electrical control cabinet |
| CN111056471A (en) * | 2020-03-03 | 2020-04-24 | 宝鸡巨菱钻采设备有限责任公司 | Lifting device for oil drilling machine based on alternating-current variable-frequency electric winch |
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| Publication number | Publication date |
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| CN104114012B (en) | 2017-04-19 |
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Address after: 528313 Shunde City, Foshan province Chencun town machinery and equipment Park, No. ten, No. Road, No. 8 Applicant after: GUANGDONG SHENLING AIR-CONDITIONING EQUIPMENT CO., LTD. Address before: 528313 Shunde City, Foshan province Chencun town machinery and equipment Park, No. ten, No. Road, No. 8 Applicant before: Guangdong Shenling Air Conditioning Equipment Co., Ltd. |
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