CN105142381A - Air-conditioner set electric control box cooling method and cooling system thereof - Google Patents
Air-conditioner set electric control box cooling method and cooling system thereof Download PDFInfo
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- CN105142381A CN105142381A CN201510665315.2A CN201510665315A CN105142381A CN 105142381 A CN105142381 A CN 105142381A CN 201510665315 A CN201510665315 A CN 201510665315A CN 105142381 A CN105142381 A CN 105142381A
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- water
- cooling water
- cooling
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Abstract
The invention relates to an air-conditioner set electric control box cooling method. The cooling method comprises the steps that temperature T1 of cooling water and temperature T2 of an electric control box are acquired, and when T1 is less than T2, cooling water is introduced to cool the electric control box; and when T1 is greater than or equal to T2, introduction of cooling water is stopped. According to the cooling method, the electric control box is automatically cooled when temperature of the electric control box is relatively high. Meanwhile, heat generated by electric control elements and devices can be rapidly absorbed by a water cooling method so that temperature of the electric control box can be reduced and the service life of the electric control elements and devices can be enhanced. The invention also discloses an air-conditioner set electric control box cooling system based on the cooling method.
Description
Technical field
The present invention relates to air-conditioning production technical field, particularly a kind of cooling means of air-conditioner set electric cabinet and cooling system thereof.
Background technology
A large amount of automatically controlled components and parts are included in air-conditioner set electric cabinet, in the process that air-conditioner set runs, various automatically controlled components and parts can produce a large amount of heats, if these heats can not be taken away in time, significantly will reduce the useful life of automatically controlled components and parts, also directly can burn automatically controlled components and parts time serious and even cause the short circuit of whole collection control circuit.
Current air-conditioner set electric cabinet reduces self temperature only by free convection and radiation heat transfer, but this radiating mode cannot meet the long-term large load operation requirement of air-conditioner set, especially when refrigerant adopts R410A, in running, the temperature rise of air-conditioner set electric cabinet is larger, adopts traditional radiating mode to be difficult to the temperature of air-conditioner set electric cabinet to control in the reasonable scope.
Therefore, how can carry out effective cooling to air conditioner electric control case, to improve the useful life of various automatically controlled components and parts, the short-circuit risks reducing collection control circuit is the technical problem that current those skilled in the art need solution badly.
Summary of the invention
An object of the present invention is to provide a kind of cooling means of air-conditioner set electric cabinet, can carry out effective cooling to air conditioner electric control case, thus improves the useful life of automatically controlled components and parts, reduces the short-circuit risks of collection control circuit.
Another object of the present invention is also the cooling system providing a kind of air-conditioner set electric cabinet based on above-mentioned cooling means.
For achieving the above object, the cooling means of air-conditioner set electric cabinet disclosed in this invention is: the temperature T gathering cooling water
1with the temperature T of electric cabinet
2, work as T
1< T
2time, introduce described cooling water and described electric cabinet is cooled; Work as T
1>=T
2time, stop introducing described cooling water.
Preferably, in above-mentioned cooling means, when described air-conditioner set is cooling by wind, described cooling water be with evaporator heat exchange after cooling water;
When described air-conditioner set is water cooled chiller, described cooling water be with evaporator or condenser heat exchange after cooling water;
When described air-conditioner set is Water cooling cold air blower group, described cooling water be with condenser heat exchange after cooling water.
Preferably, in above-mentioned cooling means, at interval of time T
3to the temperature T of described cooling water
1with the temperature T of described electric cabinet inside
2once gather.
Preferably, in above-mentioned cooling means, at every turn to the temperature T of described cooling water
1with the temperature T of described electric cabinet inside
2gathering lasting duration is T
4.
Preferably, in above-mentioned cooling means, T
3for 3min-8min, T
4for 3s-6s.
The invention also discloses a kind of cooling system of air-conditioner set electric cabinet, this cooling system comprises:
One end is connected with the delivery port of cooling water, the cooling water pipe that the other end is connected with the water return outlet of cooling water, and described cooling water pipe is arranged on electric cabinet;
Be arranged on the electromagnetically operated valve on described cooling water pipe;
For detecting the temperature T of cooling water
1the first temperature sensor, with for detecting the temperature T of described electric cabinet
2the second temperature sensor;
Controller, works as T
1< T
2time, described controller controls described electromagnetically operated valve and opens to introduce described cooling water and cool described electric cabinet; Work as T
1>=T
2time, described controller controls described closed electromagnetic valve to stop introducing described cooling water.
Preferably, in above-mentioned cooling system, when described air-conditioner set is cooling by wind, delivery port and the water return outlet of described cooling water are all opened on the water-to-water heat exchanger that contacts with evaporator;
When described air-conditioner set is water cooled chiller, delivery port and the water return outlet of described cooling water are all opened on the water-to-water heat exchanger that contacts with evaporator, or on the water-to-water heat exchanger contacted with condenser;
When described air-conditioner set is Water cooling cold air blower group, delivery port and the water return outlet of described cooling water are all opened on the water-to-water heat exchanger that contacts with condenser.
As can be seen from above technical scheme, in the cooling means of air-conditioner set electric cabinet disclosed in this invention, in fact adopt the method for water-cooled to cool electric cabinet, first the temperature of cooling water and the temperature of electric cabinet is gathered, when the temperature of cooling water is less than the temperature of electric cabinet, show that cooling water can be lowered the temperature to electric cabinet, now introduce cooling water and electric cabinet is lowered the temperature; When the temperature of cooling water is not less than the temperature of electric cabinet, show cooling water be not suitable for cooling to electric cabinet, or electric cabinet now temperature lower without the need to cooling, thus stop introduce cooling water.
Compared with prior art, this kind of cooling means achieves and automatically cools it when electric cabinet temperature is higher, the heat simultaneously adopting the mode of water-cooled can absorb rapidly automatically controlled components and parts to produce, reduces the temperature of electric cabinet, improves the useful life of automatically controlled components and parts.
The cooling system of air-conditioner set electric cabinet disclosed in the present invention, can detect the temperature of cooling water and electric cabinet, and controller is when temperature lower than electric cabinet of the temperature of cooling water, and Controlling solenoid valve is opened to introduce cooling water and cooled electric cabinet; When cooling water temperature is not less than the temperature of electric cabinet, Controlling solenoid valve closes to stop introducing cooling water.
This cooling system achieves equally and automatically cools it when electric cabinet temperature is higher, and the heat adopting the mode of water-cooled can absorb rapidly automatically controlled components and parts to produce, reduce the temperature of electric cabinet, improve the useful life of automatically controlled components and parts.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the cooling means of air-conditioner set electric cabinet disclosed in the embodiment of the present invention;
Fig. 2 is the structural representation of the cooling system of air-conditioner set electric cabinet disclosed in an embodiment of the present invention;
Fig. 3 is the structural representation of the cooling system of air-conditioner set electric cabinet disclosed in the another kind of embodiment of the present invention;
Fig. 4 be cooling water pipe disclosed in an embodiment of the present invention with electric cabinet coordinate schematic diagram;
Fig. 5 be cooling water pipe disclosed in another embodiment of the present invention with electric cabinet coordinate schematic diagram;
Fig. 6 be cooling water pipe disclosed in yet another embodiment of the invention with electric cabinet coordinate schematic diagram.
Wherein, 1 is compressor, and 2 is cross valve, and 3 is condenser, and 4 is electric expansion valve, and 5 is the water-to-water heat exchanger contacted with evaporator, and 6 is gas-liquid separator, and 7 is electric cabinet, and 8 is cooling water pipe, and 9 is electromagnetically operated valve, and 10 is the water-to-water heat exchanger contacted with condenser.
Embodiment
One of core of the present invention is to provide a kind of cooling means of air conditioner electric cabinet, can carry out effective cooling to air conditioner electric control case, thus improves the useful life of automatically controlled components and parts, reduces the short-circuit risks of collection control circuit.
Another core of the present invention is also the cooling system providing a kind of air-conditioner set electric cabinet based on above-mentioned cooling means.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1, Fig. 1 is the schematic flow sheet of the cooling means of air-conditioner set electric cabinet disclosed in the embodiment of the present invention.
The cooling means of air-conditioner set electric cabinet disclosed in the present invention, comprises step:
S1) temperature acquisition: the temperature T gathering cooling water
1with the temperature T of electric cabinet 7
2;
S2) temperature comparisons: compare T
1and T
2size;
S3) cooling water is introduced or is stopped cooling water introducing: work as T
1< T
2time, introduce cooling water and electric cabinet 7 is cooled; Work as T
1>=T
2time, stop introducing cooling water.
As can be seen from this embodiment, in the cooling means of air-conditioner set electric cabinet disclosed in this invention, it is in fact the natural air cooled mode that be instead of current electric cabinet 7 by the mode of water-cooled, first the temperature of cooling water and the temperature of electric cabinet 7 is gathered, when the temperature of cooling water is less than the temperature of electric cabinet 7, show that cooling water can be lowered the temperature to electric cabinet 7, now introduce cooling water and electric cabinet 7 is lowered the temperature; When the temperature of cooling water is not less than the temperature of electric cabinet 7, show that cooling water is not suitable for lowering the temperature to electric cabinet 7, or electric cabinet 7 now temperature lower without the need to cooling, thus stop introduce cooling water.
This kind of cooling means achieves and automatically cools it when electric cabinet 7 temperature is higher, the heat simultaneously adopting the mode of water-cooled can absorb rapidly automatically controlled components and parts to produce, and reduces the temperature of electric cabinet 7, improves the useful life of automatically controlled components and parts.
Understandablely be, the source of cooling water is also unrestricted, the cooling water coming from air-conditioner set itself can be adopted, also the cooling water come from outside air-conditioner set can be adopted to cool electric cabinet 7, in the embodiment of the present invention, the preferred cooling water coming from air-conditioner set itself that adopts cools electric cabinet 7, concrete, when air-conditioner set is cooling by wind, cooling water be with evaporator heat exchange after cooling water; When air-conditioner set is water cooled chiller, cooling water can be with evaporator heat exchange after cooling water, also can be with condenser 3 heat exchange after cooling water; When air-conditioner set is Water cooling cold air blower group, cooling water be with condenser 3 heat exchange after cooling water.
Please refer to Fig. 2 and Fig. 3, what in fact represent in Fig. 2 be air-conditioner set is cooling by wind, cooling water now take from evaporator heat exchange after cooling water, representated by Fig. 3 be air-conditioner set is water cooled chiller, cooling water now take from condenser 3 heat exchange after cooling water, certainly, the cooling water in this kind of situation also can take from evaporator heat exchange after cooling water.
Those skilled in the art it is easily understood that, when cooling water takes from air-conditioner set itself, the temperature of cooling water and the temperature of electric cabinet 7 can change at any time, in order to can accurately lower the temperature to electric cabinet 7 by controlled cooling model water, and preferred per interval T in the present invention
3to the temperature T of cooling water
1with the temperature T of electric cabinet 7 inside
2once gather.The present invention recommends the span of T3 to be 3min-8min, such as 5min, 7min constant duration.
Because temperature sensor used in temperature acquisition process is generally temperature-sensitive bag, and temperature-sensitive easily produces error when wrapping in transient measurement temperature, in order to avoid the error that transient measurement brings, in the present embodiment, further optimization is made to said temperature acquisition method, at each temperature T to cooling water
1with the temperature T of electric cabinet 7 inside
2during collection, lasting duration is T
4, in the present invention, recommend T
4span be the duration such as 3s-6s, such as 4s, 5s.
A kind of cooling system of air-conditioner set electric cabinet is also disclosed in the present invention, this cooling system comprises cooling water pipe 8, electromagnetically operated valve 9, first temperature sensor, the second temperature sensor and controller, wherein, one end of cooling water pipe 8 is connected with the delivery port of cooling water, the other end is connected with the water return outlet of cooling water, electromagnetically operated valve 9 is arranged on cooling water pipe 8, and the first temperature sensor is for detecting the temperature T of cooling water
1, the second temperature sensor is for detecting the temperature T of electric cabinet 7
2, work as T
1< T
2time, controller Controlling solenoid valve 9 is opened to introduce cooling water and is cooled electric cabinet 7; Work as T
1>=T
2time, controller Controlling solenoid valve 9 closes to stop introducing cooling water.
Visible, the cooling system of air-conditioner set electric cabinet disclosed in the embodiment of the present invention, can detect the temperature of cooling water and electric cabinet 7, and controller is when temperature lower than electric cabinet 7 of the temperature of cooling water, Controlling solenoid valve 9 is opened to introduce cooling water and is cooled electric cabinet 7; When cooling water temperature is not less than the temperature of electric cabinet 7, Controlling solenoid valve 9 closes to stop introducing cooling water.
This cooling system achieves equally and automatically cools it when electric cabinet 7 temperature is higher, and the heat adopting the mode of water-cooled can absorb rapidly automatically controlled components and parts to produce, reduce the temperature of electric cabinet 7, improve the useful life of automatically controlled components and parts.
Cooling water pipe 8 dish is located on electric cabinet 7 and can brings ideal cooling effect, as disclosed the fit system of multiple cooling water pipe and electric cabinet in Fig. 4 to Fig. 6.Be to be understood that, in this cooling system, the source of cooling water is unrestricted equally, the cooling water coming from air-conditioner set itself can be adopted, also the cooling water come from outside air-conditioner set can be adopted to cool electric cabinet 7, and in the embodiment of the present invention, the preferred cooling water coming from air-conditioner set itself that adopts cools electric cabinet, concrete, when air-conditioner set is cooling by wind, delivery port and the water return outlet of cooling water are all opened on the water-to-water heat exchanger 5 that contacts with evaporator; When air-conditioner set is water cooled chiller, delivery port and the water return outlet of cooling water are all opened on the water-to-water heat exchanger 5 that contacts with evaporator, or on the water-to-water heat exchanger 10 contacted with condenser, as shown in Figures 2 and 3; When air-conditioner set is Water cooling cold air blower group, delivery port and the water return outlet of cooling water are all opened on the water-to-water heat exchanger 10 that contacts with condenser, and in the present invention, so-called water-to-water heat exchanger refers to that the medium of heat exchanger inside is water.
Above the cooling means of air-conditioner set electric cabinet provided by the present invention and cooling system thereof are described in detail.Apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection range of the claims in the present invention.
Claims (7)
1. a cooling means for air-conditioner set electric cabinet, is characterized in that, gathers the temperature T of cooling water
1with the temperature T of electric cabinet (7)
2, work as T
1< T
2time, introduce described cooling water and described electric cabinet (7) is cooled; Work as T
1>=T
2time, stop introducing described cooling water.
2. the cooling means of air-conditioner set electric cabinet according to claim 1, is characterized in that,
When described air-conditioner set is cooling by wind, described cooling water be with evaporator heat exchange after cooling water;
When described air-conditioner set is water cooled chiller, described cooling water be with evaporator or condenser (3) heat exchange after cooling water;
When described air-conditioner set is Water cooling cold air blower group, described cooling water be with condenser (3) heat exchange after cooling water.
3. the cooling means of air-conditioner set electric cabinet according to claim 1 and 2, is characterized in that, at interval of time T
3to the temperature T of described cooling water
1with the temperature T of described electric cabinet (7)
2once gather.
4. the cooling means of air-conditioner set electric cabinet according to claim 3, is characterized in that, at every turn to the temperature T of described cooling water
1with the temperature T of described electric cabinet (7)
2gathering lasting duration is T
4.
5. the cooling means of air-conditioner set electric cabinet according to claim 4, is characterized in that, T
3for 3min-8min, T
4for 3s-6s.
6. a cooling system for air-conditioner set electric cabinet, is characterized in that, comprising:
One end is connected with the delivery port of cooling water, the cooling water pipe (8) that the other end is connected with the water return outlet of cooling water, and described cooling water pipe (8) is arranged on electric cabinet (7);
Be arranged on the electromagnetically operated valve (9) on described cooling water pipe (8);
For detecting the temperature T of cooling water
1the first temperature sensor, with for detecting the temperature T of described electric cabinet (7)
2the second temperature sensor;
Controller, works as T
1< T
2time, described controller controls described electromagnetically operated valve (9) and opens to introduce described cooling water and cool described electric cabinet (7); Work as T
1>=T
2time, described controller controls described electromagnetically operated valve (9) and cuts out to stop introducing described cooling water.
7. the cooling system of air-conditioner set electric cabinet according to claim 6, is characterized in that,
When described air-conditioner set is cooling by wind, delivery port and the water return outlet of described cooling water are all opened on the water-to-water heat exchanger (5) that contacts with evaporator;
When described air-conditioner set is water cooled chiller, delivery port and the water return outlet of described cooling water are all opened on the water-to-water heat exchanger (5) that contacts with evaporator, or on the water-to-water heat exchanger (10) contacted with condenser;
When described air-conditioner set is Water cooling cold air blower group, delivery port and the water return outlet of described cooling water are all opened on the water-to-water heat exchanger (10) that contacts with condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510665315.2A CN105142381A (en) | 2015-10-14 | 2015-10-14 | Air-conditioner set electric control box cooling method and cooling system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510665315.2A CN105142381A (en) | 2015-10-14 | 2015-10-14 | Air-conditioner set electric control box cooling method and cooling system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105142381A true CN105142381A (en) | 2015-12-09 |
Family
ID=54727541
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510665315.2A Pending CN105142381A (en) | 2015-10-14 | 2015-10-14 | Air-conditioner set electric control box cooling method and cooling system thereof |
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Cited By (5)
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|---|---|---|---|---|
| CN105927570A (en) * | 2016-04-19 | 2016-09-07 | 成都瑞阳机械有限公司 | Power supply protection type intelligent cooling control system with centrifugal fan |
| CN107087379A (en) * | 2017-05-19 | 2017-08-22 | 芜湖普唯特智能装备有限公司 | A kind of electric cabinet cooling system |
| CN107191359A (en) * | 2017-07-19 | 2017-09-22 | 启明天工（苏州）控制***有限公司 | A kind of air compressor cooling means and system |
| CN109246992A (en) * | 2018-10-15 | 2019-01-18 | 珠海格力电器股份有限公司 | The cooling system and its relevant device of electric cabinet |
| CN110167319A (en) * | 2019-05-21 | 2019-08-23 | 广东美的暖通设备有限公司 | Radiator, air conditioner and its control method for air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927570A (en) * | 2016-04-19 | 2016-09-07 | 成都瑞阳机械有限公司 | Power supply protection type intelligent cooling control system with centrifugal fan |
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| CN110167319A (en) * | 2019-05-21 | 2019-08-23 | 广东美的暖通设备有限公司 | Radiator, air conditioner and its control method for air conditioner |
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Application publication date: 20151209 |
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