CN203378169U - Electrical cabinet - Google Patents
Electrical cabinet Download PDFInfo
- Publication number
- CN203378169U CN203378169U CN201320515461.3U CN201320515461U CN203378169U CN 203378169 U CN203378169 U CN 203378169U CN 201320515461 U CN201320515461 U CN 201320515461U CN 203378169 U CN203378169 U CN 203378169U
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- cabinet
- air
- heat exchanger
- sub
- regulator cubicle
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Abstract
An electrical cabinet comprises a cabinet body with a cabinet door, and the cabinet body is provided or not provided with a cable inlet hole. After the cabinet door is closed and the cable inlet hole is closed, no outside air enters into channels of the cabinet body, and an air-air heat exchanger for cooling the inner part of the cabinet is mounted on the cabinet body. Or the cabinet body of the electrical cabinet is formed by a plurality of sub cabinet bodies, no outside air enters into the channels of some sub cabinet bodies, the sub cabinet bodies without outside air are provided with the air-air heat exchangers for cooling the inner part of the cabinets. The sealing structure of the electrical cabinet is combined with the air-air heat exchanger, so as to increase the level of protection and meet the cooling requirements of the cabinet. The electrical cabinet can be applied in all fields with the electrical cabinets, including energy sources, electric power, manufacturing industry, especially suitable for wind power fields.
Description
Technical field
The utility model relates to a kind of regulator cubicle.
Background technology
Generally speaking, regulator cubicle all is designed with the degree of protection of certain grade, the general IEC standard that adopts, for the regulator cubicle that is installed on coastal area, if its degree of protection is lower, can not completely cut off outside air, particularly directly use outside air as coolant, the humid air that carries salt fog will directly enter regulator cubicle, and the regulator cubicle inner part is as badly damaged in circuit board, support, control apparatus etc. are caused by corrosion, especially the minimum circuit board for line-spacing, the as easy as rolling off a log short circuit phenomenon that causes.Moreover, regulator cubicle may have a power failure, and when especially blow typhoon in coastal area, equipment may be out of service, the a large amount of steam that carry in air enter cabinet, after power failure, the regulator cubicle temperature reduces, and after reaching the condensation temperature, at circuit board, connector socket etc., locates to form condensation, the electric insulation ability descends, can form short circuit after re-powering, cause circuit board damage, for high frequency, large current signal circuit board especially IGBT drive plate, damage is even more serious.
In sum, if the degree of protection of the regulator cubicle in coastal or humid area is too low, the cabinet inner part will can not get effective protection, after regulator cubicle is out of service, to cause the badly damaged of parts after particularly having a power failure, the little high frequency for line-spacing, high-current circuit plate especially IGBT plate damages even more serious, usually way is to heat electrical system before re-powering, its insulating capacity is recovered, but this need to drop into a large amount of manpower and materials, lose time, and can not avoid especially circuit board damage of regulator cubicle inner part fully, change the cost of board and stop transport and all caused very large economic loss, therefore be necessary its cooling system is transformed.
The utility model content
The purpose of this utility model is to provide a kind of degree of protection high and can meet the regulator cubicle of the cooling requirement of cabinet.
For achieving the above object, the utility model adopts following technical scheme:
A kind of regulator cubicle, comprise the cabinet that contains the cabinet door, offer or do not offer the long cable section of ingoing line hole on described cabinet, after described cabinet door is closed, and after the long cable section of ingoing line hole that the long cable section of ingoing line hole is arranged is also sealed, described cabinet is without the outside air admission passage, and on described cabinet, is equipped with for the inner colded air-air heat exchanger of cabinet.
A kind of regulator cubicle, comprise the cabinet that contains the cabinet door, offer or do not offer the long cable section of ingoing line hole on described cabinet, described cabinet is comprised of a plurality of sub-cabinets, its feature is being, after described cabinet door is closed, and after having the long cable section of ingoing line hole in long cable section of ingoing line hole also to seal, the parton cabinet is without the outside air admission passage, and is provided with for its inner colded air-air heat exchanger without the sub-cabinet of outside air admission passage.
Further, described cabinet is comprised of sub-cabinet more than three, wherein, without the sub-cabinet of outside air admission passage, is two, and two sub-cabinets are interconnected, and shares a described air-air heat exchanger; Or separate without two sub-cabinets of outside air admission passage, respectively with a described air-air heat exchanger.
Further, described cabinet is comprised of sub-cabinet more than four, without the sub-cabinet of outside air admission passage, is more than three, wherein, without all being communicated with between sub-cabinet more than three of outside air admission passage, and share a described air-air heat exchanger; Or the described part connection between sub-cabinet more than three without the outside air admission passage, the sub-cabinet be communicated with shares a described air-air heat exchanger, and the unconnected sub-cabinet without the outside air admission passage is independently used a described air-air heat exchanger.
Further, described air-air heat exchanger comprises shell, described shell one side is provided with No. 1 air inlet and No. 2 exhaust outlets, opposite side is provided with No. 3 air inlets and No. 4 exhaust outlets, also be provided with heat exchanger core in shell, described, the wind of No. 1 air inlet is discharged from No. 2 exhaust outlets through described heat exchanger core; The wind of No. 3 air inlets is discharged from No. 4 exhaust outlets through described heat exchanger core.
Compared with prior art, the utlity model has following beneficial effect:
1, regulator cubicle of the present utility model, owing to adopting hermetically-sealed construction, can improve the degree of protection of regulator cubicle, prevents that outside air from entering infringement internal component in regulator cubicle, reduced maintenance cost; Corresponding hermetically-sealed construction, be provided with air-air heat exchanger, can further solve the problem that the cooling system ability descends after isolated outside air, good cooling results.
2, regulator cubicle is generally combined by a plurality of sub-cabinets with independent function, comprise master control cabinet, transformer case, power distribution cabinet, cooling cabinet, frequency conversion tank etc., each sub-cabinet has difference to the requirement of degree of protection, the main sub-cabinet be comprised of parts such as circuit breaker, relay, contactor, insurances is generally less demanding to degree of protection, can take outside air cooling; The main sub-cabinet be comprised of board, IGBT module etc. is had relatively high expectations to degree of protection, generally at least need to reach IP55 even higher, therefore the utility model is also considered for each sub-cabinet difference when improving the regulator cubicle degree of protection, the different sub-cabinet of degree of protection is isolated, the independent higher sub-cabinet of sealing protection class requirement, do like this and there is stronger specific aim, and better effects if.
3, the utility model can be applied to all spectra with regulator cubicle, comprises the energy, electric power, manufacturing industry etc., is specially adapted to wind power generation field.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
The accompanying drawing explanation
The structural representation that Fig. 1 is regulator cubicle in prior art (outside air is cooling);
The structural representation that Fig. 2 is the utility model regulator cubicle (containing side formula air-air heat exchanger);
The structural representation that Fig. 3 is the utility model regulator cubicle (containing top formula air-air heat exchanger);
The structural representation that Fig. 4 is regulator cubicle in prior art (how sub-cabinet and containing two outside air cooling systems);
The structural representation that Fig. 5 is the utility model regulator cubicle (how sub-cabinet and containing air-air heat exchanger and outside air cooling system).
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for description and interpretation the utility model, and be not used in restriction the utility model.
At first it should be noted that, the outside air of the utility model indication all refers to the air of cabinet outside.
Major technique of the present utility model is contemplated that: the zone of taking insulating measure that regulator cubicle need to be protected and outside air isolation, then form effective air circulation system in regulator cubicle, and adopt a kind of special cooler to absorb heat in regulator cubicle, it is dispersed in outside air.
In order to improve the regulator cubicle degree of protection, regulator cubicle is carried out to encapsulation process.For the regulator cubicle of the extraneous circulating air cooling system of available technology adopting, general mainly by air inlet, exhaust outlet etc., with outside air, carry out air exchange, may there be in addition other positions to be communicated with outside air, long cable section of ingoing line mouth particularly, need to carry out shutoff to these places, by regulator cubicle and isolate from outer air, form a confined space, so just can prevent that the moisture that carries salt fog from entering regulator cubicle with outside air.
By after the regulator cubicle sealing, with the outside air circulating cooling system, do not existed, need to again build cooling system to carry out effective cooling.In regulator cubicle, the general heating parts are more, comprise reactor, transformer, IGBT module, high-power resistance etc., and especially the IGBT modular power is larger, cooling more, need to carry out effective cooling and could keep in-cabinet temperature in the reasonable scope.This practical new recommendation air-air heat exchanger, this heat exchanger can be in the situation that do not contact with outside air and realize that air is cooling.
Regulator cubicle of the present utility model can be formed by common regulator cubicle transformation of the prior art, and concrete remodeling method is as follows:
1, cabinet sealing
The positions such as grid type air inlet (shutter), exhaust outlet are sealed, generally adopt sheet material to be sealed, can be used metal material, composite material etc., the recommend adoption glass fiber reinforced plastics composite material, sheet edge is used fluid sealant to be sealed; The position contacted with outside air for long cable section of ingoing line mouth etc., can use anti-chamotte, expanding material etc., these material requires have the characteristics such as sealing is strong, fire-retardant, insulation, high temperature resistant, corrosivity is low, can play good sealing effectiveness, can not damage again the parts such as cable, more can not become the dangerous matter sources of regulator cubicle, affect the normal operation of regulator cubicle.
2, rebuild cooling system
After cabinet sealing, in the proper site of cabinet, install cooling device additional, can the dismantle original side plate of cabinet, top board etc., position perforate that also can be suitable at cabinet is installed, and under the condition that cooling device is isolated at cabinet and outside air, by outside air, is undertaken cooling.Relatively be typically the use air-air heat exchanger.
The selection of air-air heat exchanger need to be considered the factors such as the heat-sinking capability, Air flow velocity of caloric value, the heat exchanger of main heat generating components in cabinet, select to have the heat exchanger of enough heat-sinking capabilities by calculating, and leave certain nargin, avoid causing transforming unsuccessfully because heat-sinking capability is not enough.
To consider the weight of heat exchanger in addition, the regulator cubicle surrounding is generally to be formed by connecting by sheet metal, and its weight capacity is limited, and the weight of heat exchanger can not be overweight, the weight capacity that has surpassed regulator cubicle surrounding sheet material, may cause that the regulator cubicle distortion even damages.
As shown in Figure 2,3, a kind of regulator cubicle of the present utility model, comprise the cabinet 1 that contains the cabinet door, offer or do not offer the long cable section of ingoing line hole on cabinet 1, after the cabinet door is closed, and after the long cable section of ingoing line hole that the long cable section of ingoing line hole is arranged is also sealed, cabinet 1 is without the outside air admission passage, and on cabinet 1, is equipped with for the inner colded air-air heat exchanger 2 of cabinet 1.
The regulator cubicle of said structure form can be obtained by regulator cubicle transformation of the prior art, regulator cubicle before transformation as shown in Figure 1, cabinet 1 comprises a cooling system, use the ventilating opening of cabinet door 11 as air inlet 12, the ventilating fan of right cabinet side is as exhaust outlet 13, form air circulation, outside the heat produced in regulator cubicle offers for sale with the outside air band, form effective cooling.
Coordinate shown in Fig. 1-3, transformation process is as follows:
By all sealings of the ventilating fan (exhaust outlet 13) of the ventilating opening of cabinet door 11 (air inlet 12), right cabinet side, make the confined space of cabinet 1 formation and isolate from outer air, then use 2 pairs of regulator cubicles of air-air heat exchanger to carry out cooling, air-air heat exchanger 2 can be arranged on cabinet 1 side, see Fig. 2, also can be arranged on top, see Fig. 3.Air-air heat exchanger 2 comprises shell, and shell one side is provided with No. 1 air inlet 21 and No. 2 exhaust outlets 22, and opposite side is provided with No. 3 air inlets 23 and No. 4 exhaust outlets 24, also is provided with heat exchanger core in shell.Air-air heat exchanger 2 is divided into inside and outside two duty cycle, and inside and outside two duty cycle are mutually isolated, reach moistureproof, dustproof purpose.Two circulate in heat exchanger core and carry out heat exchange.The heat that cabinet 1 internal electric device reset produces elevates the temperature, high-order air enters heat-exchange apparatus by No. 1 air inlet 21, heat is passed to the cold air of outer circulation by heat exchanger core, become the gas of lower temperature, enter cabinet 1 from No. 2 exhaust outlets 22, thus electric equipment in cooling cabinet.Cool ambient air enters heat exchanger by No. 3 air inlets 23, by heat exchanger core, absorbs internal heat, and temperature raises and discharges from No. 4 exhaust outlets 24.
In practical application, regulator cubicle may be divided into a plurality of zones (forming a plurality of sub-cabinets) according to function, device difference, and these zones can be likely to divide up and down, may be also inside and outside to divide, perhaps have both at the same time, a cooling system can not meet the system needs.According to device amount of cooling water and the cooling requirement difference of regional, regulator cubicle can adopt two even more cooling recirculation systems, for such regulator cubicle, can be sealed by a localized region, and without carrying out integral sealing.Need the zone of sealing to have relatively high expectations to degree of protection, can not directly contact with the outside air that contains moisture, salt fog etc.
Therefore, the present embodiment provides a kind of regulator cubicle, and cabinet is comprised of a plurality of sub-cabinets, and the parton cabinet is without the outside air admission passage, and is provided with for its inner colded air-air heat exchanger without the sub-cabinet of outside air admission passage.
Specifically as shown in Figure 5, regulator cubicle comprises the cabinet 1 that contains the cabinet door, offer or do not offer the long cable section of ingoing line hole on cabinet 1, cabinet 1 is comprised of three sub-cabinets, after the cabinet door is closed, and, after having the long cable section of ingoing line hole in long cable section of ingoing line hole also to seal, two sub-cabinets are without the outside air admission passage, two sub-cabinets are interconnected, and share a described air-air heat exchanger 2.It is pointed out that also can be separate without two sub-cabinets of outside air admission passage, respectively with an air-air heat exchanger 2.
The regulator cubicle of said structure form can be obtained by the regulator cubicle transformation of prior art, and the regulator cubicle before transformation as shown in Figure 4, contains two cooling systems, and first cooling system is for the left side cabinet, and second for right cabinet and a left side outer cabinet cashier's office in a shop.The ventilating opening of the left-hand door that first cooling system uses is as air inlet 12, and the cooling fan (aerofoil fan) at left cabinet top, as exhaust outlet 3, forms a cooling system; The ventilating opening that second cooling system uses right cabinet is as air inlet 12, and the ventilating fan of right cabinet side is as exhaust outlet 13, and outer cashier's office in a shop on a left side also have two fans to be communicated with right cabinet, and one as air inlet, and one as exhaust outlet, and circulation circuit is referring to Fig. 4.First cooling system in left side is less demanding to degree of protection, and internal part can directly contact with outside air, therefore retain this cooling system; Outer field second the cooling system inside in right side and upper left has comprised the devices such as circuit board, and degree of protection is had relatively high expectations, and can not directly contact with outside air, need to be transformed it, and transformation process is as follows:
The air inlet on right side 12 and exhaust outlet 13 are sealed, make it form a closed environment, then, at the air-air heat exchanger 2 of cabinet 1 right side installation side formula, Fig. 5 is seen in the airflow circulating loop.The structure of air-air heat exchanger 2 and operation principle reference example 1 are described.
The present embodiment only be take the regulator cubicle of three sub-cabinets and is illustrated as example, it is to be noted, for the regulator cubicle that contains sub-cabinet more than four, sub-cabinet without the outside air admission passage can be more than three, wherein, without all being communicated with between sub-cabinet more than three of outside air admission passage, and share the air-air heat exchanger of; Or partly be communicated with without all right between sub-cabinet more than three of outside air admission passage, the sub-cabinet of connection shares an air-air heat exchanger, and the unconnected sub-cabinet without the outside air admission passage is independently used an air-air heat exchanger.
Finally it should be noted that: the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment, the utility model is had been described in detail, for a person skilled in the art, its technical scheme that still can put down in writing previous embodiment is modified, or part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (6)
1. a regulator cubicle, comprise the cabinet that contains the cabinet door, offer or do not offer the long cable section of ingoing line hole on described cabinet, its feature is being, after described cabinet door is closed, and after the long cable section of ingoing line hole that the long cable section of ingoing line hole is arranged is also sealed, described cabinet is without the outside air admission passage, and on described cabinet, is equipped with for the inner colded air-air heat exchanger of cabinet.
2. regulator cubicle according to claim 1, it is characterized in that, described air-air heat exchanger comprises shell, described shell one side is provided with No. 1 air inlet and No. 2 exhaust outlets, opposite side is provided with No. 3 air inlets and No. 4 exhaust outlets, also be provided with heat exchanger core in shell, described, the wind of No. 1 air inlet is discharged from No. 2 exhaust outlets through described heat exchanger core; The wind of No. 3 air inlets is discharged from No. 4 exhaust outlets through described heat exchanger core.
3. a regulator cubicle, comprise the cabinet that contains the cabinet door, offer or do not offer the long cable section of ingoing line hole on described cabinet, described cabinet is comprised of a plurality of sub-cabinets, its feature is being, after described cabinet door is closed, and after having the long cable section of ingoing line hole in long cable section of ingoing line hole also to seal, the parton cabinet is without the outside air admission passage, and is provided with for its inner colded air-air heat exchanger without the sub-cabinet of outside air admission passage.
4. regulator cubicle according to claim 3, is characterized in that, described cabinet is comprised of sub-cabinet more than three, wherein, sub-cabinet without the outside air admission passage is two, and two sub-cabinets are interconnected, and shares a described air-air heat exchanger; Or separate without two sub-cabinets of outside air admission passage, respectively with a described air-air heat exchanger.
5. regulator cubicle according to claim 3, it is characterized in that, described cabinet is comprised of sub-cabinet more than four, sub-cabinet without the outside air admission passage is more than three, wherein, without all being communicated with between sub-cabinet more than three of outside air admission passage, and share a described air-air heat exchanger; Or the described part connection between sub-cabinet more than three without the outside air admission passage, the sub-cabinet be communicated with shares a described air-air heat exchanger, and the unconnected sub-cabinet without the outside air admission passage is independently used a described air-air heat exchanger.
6. according to the described regulator cubicle of claim 3-5 any one, it is characterized in that, described air-air heat exchanger comprises shell, described shell one side is provided with No. 1 air inlet and No. 2 exhaust outlets, opposite side is provided with No. 3 air inlets and No. 4 exhaust outlets, also be provided with heat exchanger core in shell, described, the wind of No. 1 air inlet is discharged from No. 2 exhaust outlets through described heat exchanger core; The wind of No. 3 air inlets is discharged from No. 4 exhaust outlets through described heat exchanger core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515461.3U CN203378169U (en) | 2013-08-22 | 2013-08-22 | Electrical cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515461.3U CN203378169U (en) | 2013-08-22 | 2013-08-22 | Electrical cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203378169U true CN203378169U (en) | 2014-01-01 |
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ID=49840668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320515461.3U Expired - Fee Related CN203378169U (en) | 2013-08-22 | 2013-08-22 | Electrical cabinet |
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| Country | Link |
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| CN (1) | CN203378169U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104503514A (en) * | 2014-09-17 | 2015-04-08 | 徐州中矿大传动与自动化有限公司 | Frequency converter constant temperature and humidity remote intelligent control method based on 4G wireless network transmission |
| CN105324007A (en) * | 2014-08-04 | 2016-02-10 | 艾默生网络能源有限公司 | Outdoor machine cabinet |
| CN105431007A (en) * | 2015-11-30 | 2016-03-23 | 中国电子科技集团公司第二十八研究所 | Active radiating dual-airtight electronic equipment machine cabinet |
-
2013
- 2013-08-22 CN CN201320515461.3U patent/CN203378169U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105324007A (en) * | 2014-08-04 | 2016-02-10 | 艾默生网络能源有限公司 | Outdoor machine cabinet |
| CN104503514A (en) * | 2014-09-17 | 2015-04-08 | 徐州中矿大传动与自动化有限公司 | Frequency converter constant temperature and humidity remote intelligent control method based on 4G wireless network transmission |
| CN105431007A (en) * | 2015-11-30 | 2016-03-23 | 中国电子科技集团公司第二十八研究所 | Active radiating dual-airtight electronic equipment machine cabinet |
| CN105431007B (en) * | 2015-11-30 | 2018-04-10 | 中国电子科技集团公司第二十八研究所 | A kind of active radiating double density closes electronic equipment cabinet |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20160822 |