CN203908094U - Heat recovery multi-split air conditioner - Google Patents
Heat recovery multi-split air conditioner Download PDFInfo
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- CN203908094U CN203908094U CN201420182105.9U CN201420182105U CN203908094U CN 203908094 U CN203908094 U CN 203908094U CN 201420182105 U CN201420182105 U CN 201420182105U CN 203908094 U CN203908094 U CN 203908094U
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- 238000011084 recovery Methods 0.000 title abstract 6
- 238000005057 refrigeration Methods 0.000 abstract description 33
- 239000003507 refrigerant Substances 0.000 abstract description 29
- 239000007788 liquid Substances 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 5
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses a heat recovery multi-split air conditioner. The heat recovery multi-split air conditioner comprises a high-pressure air pipe, a low-pressure air pipe and an outdoor unit; the high-pressure air pipe is respectively connected with the high-pressure side of the outdoor unit and the low-pressure side of the outdoor unit through a control valve and a connecting pipeline; the low-pressure air pipe is connected with the low-pressure side of the outdoor unit. The utility model discloses a many online machines of heat recovery makes many online machines of heat recovery convert high-pressurepipe into low-pressurepipe when the complete refrigeration mode, forms two low-pressure pipe-line systems, makes the refrigerant get back to off-premises station completion system circulation simultaneously through two pipelines of low-pressurepipe of medium-pressure liquid pipe accessible and high-pressurepipe after the machine participates in the refrigeration heat transfer to the indoor set. The utilization rate of the refrigerant is greatly improved, the pressure drop of the low-pressure side of the outdoor unit is greatly reduced, and the energy efficiency level of the heat recovery multi-split air conditioner in the complete refrigeration mode is greatly improved.
Description
Technical field
The utility model relates to field of air conditioning, relates in particular to a kind of heat-reclamation multi-compressors.
Background technology
Market and user more and more approve for the efficient energy-saving of multi-connected machine and the feature that is easy to safeguard in recent years, and the multi-connected machine product of each producer also more and more becomes the criterion of Yi Ge producer technical merit height at the height of efficiency.Heat-reclamation multi-compressors, as a typical multi-connected machine product, is all a high level representative of multi-connected machine in its complexity and high energy efficiency.
All there is an irrational problem in heat-reclamation multi-compressors at present, when system is moved complete refrigeration mode, be the whole running refrigerating patterns of all indoor sets of internal system, now heat-reclamation multi-compressors system is equal to common heat pump multi-connected machine system substantially, does not need high-pressure air pipe that the operation of refrigerant participation system is provided.But in the design of recuperation of heat at present, can not change the situation that exists of high-pressure air pipe refrigerant, and high-pressure air pipe existence means a large amount of effectively participation system of refrigerant operations, and in the effect of doing harmful system operation, efficiency for system has larger impact, even can have influence on refrigeration.
Utility model content
Based on this, be necessary to provide a kind of, the existence that can solve high-pressure air pipe under complete refrigeration mode affects the heat-reclamation multi-compressors of the problem of refrigeration.
A kind of heat-reclamation multi-compressors providing for realizing the utility model object, comprises high-pressure air pipe, low pressure gas pipe and off-premises station;
Described high-pressure air pipe is connected with the high-pressure side of described off-premises station and the low-pressure side of described off-premises station respectively by control valve and connecting line;
Described low pressure gas pipe is connected with the low-pressure side of described off-premises station.
As a kind of embodiment of heat-reclamation multi-compressors, described control valve comprises the first control valve and the second control valve;
Described high-pressure air pipe is connected with the high-pressure side of described off-premises station by described the first control valve and connecting line;
Described high-pressure air pipe is connected with the low-pressure side of described off-premises station by described the second control valve and connecting line.
As a kind of embodiment of heat-reclamation multi-compressors, described control valve is a cross valve;
When not powering on, described cross valve is communicated with the high-pressure side of described high-pressure air pipe and described off-premises station by connecting line;
After powering on, described cross valve is communicated with the low-pressure side of described high-pressure air pipe and described off-premises station by connecting line.
As a kind of embodiment of heat-reclamation multi-compressors, described high-pressure air pipe is connected with described low pressure gas pipe by described control valve and described connecting line, thereby connects the low-pressure side of described off-premises station.
As a kind of embodiment of heat-reclamation multi-compressors, also comprise bypass capillary;
Four links of described cross valve are respectively the first link, the second link, the 3rd link and the 4th link;
Described the first link connects described high-pressure air pipe; Described the second link connects the on high-tension side connecting line that leads to described off-premises station; Described the 3rd link connects the connecting line of the low-pressure side of leading to described off-premises station; Described the 4th link connects one end of described bypass capillary;
The other end of described bypass capillary is communicated with the tube connector that leads to the low-pressure side of described off-premises station.
As a kind of embodiment of heat-reclamation multi-compressors, also comprise a plurality of indoor sets and the indoor set converter identical with described indoor set quantity;
Described high-pressure air pipe is connected with described indoor set by described indoor set converter with described low pressure gas pipe;
The corresponding described indoor set of indoor set converter described in each;
Described indoor set converter controls described high-pressure air pipe and/or described low pressure gas pipe is communicated with described indoor set.
The beneficial effects of the utility model comprise:
A kind of heat-reclamation multi-compressors that the utility model provides, make heat-reclamation multi-compressors when complete refrigeration mode, high-pressure air pipe is converted to low pressure gas pipe, form two low pressure line systems, refrigerant is circulated to can get back to off-premises station completion system by low pressure gas pipe and two pipelines of high-pressure air pipe after indoor set participates in freezing heat exchange simultaneously through middle hydraulic fluid pipe.Effectively solve heat-reclamation multi-compressors under the complete refrigeration mode of operation, refrigerant is full of the situation of high-pressure air pipe, even if high-pressure air pipe does not participate in refrigerating operaton, can not avoid leaking to this pipeline in refrigerant, causes the uncontrolled problem of coolant quantity.Can effectively improve the ability of heat-reclamation multi-compressors under complete refrigeration mode.Due to the conversion of pipe-line system, be equivalent to two low pressure lines, not only refrigerant utilization rate significantly improves, and greatly reduces the low-pressure side pressure drop of off-premises station simultaneously, significantly improves the efficiency level of heat-reclamation multi-compressors under complete refrigeration mode.
Accompanying drawing explanation
Fig. 1 is the structural representation of a specific embodiment of a kind of heat-reclamation multi-compressors of the utility model;
Fig. 2 is a kind of flow chart of a specific embodiment of heat-reclamation multi-compressors control method.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the specific embodiment of the heat-reclamation multi-compressors of the utility model embodiment is described.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Current heat-reclamation multi-compressors generally all adopts the design of three control, and so-called three control are exactly in a set of outer machine system, to have high-pressure air pipe 18, middle hydraulic fluid pipe 19 and low pressure gas pipe 20 3 circuits.The operation logic of recuperation of heat is also different from common multi-connected heat pump multi-connected machine.Common heat pump multi-connected machine generally has two pipelines: tracheae and liquid pipe, when system running refrigerating pattern, the refrigerant liquid pipe of flowing through after condenser heat exchange flows to indoor set throttling heat exchange again, the state of the refrigerant of liquid pipe temperature in high pressure now, and the state of the refrigerant pipeline of tracheae after as indoor set heat exchange in low-pressure low-temperature; But when system operation heating mode, refrigerant directly flows to indoor set from tracheae without heat exchange, the state of tracheae now in high pressure-temperature, and liquid pipe is through the state of indoor set heat exchange temperature in middle pressure.Can find out under different patterns, during the pipeline state of common heat pump multi-connected machine along with the difference of operational mode changes.But the pipeline of heat-reclamation multi-compressors in current design time not along with pattern conversion generation state changes, heat-reclamation multi-compressors provides the refrigerant of stable three kinds of states to system, high pressure, middle pressure and low pressure, indoor set is according to the situation of own mode operation conditions, by devices such as mode converters, oneself regulate choosing of refrigerant to flow to and realize the operation of freezing simultaneously and heating.
Referring to Fig. 1, in a specific embodiment of the present utility model, three indoor sets of take are example.Three indoor sets are respectively the first indoor set 8, the second indoor set 7 and the 3rd indoor set 6, and the corresponding indoor set converter 4(of each indoor set does not mark one by one).Indoor set converter 4 is controlled indoor set and is communicated with high-pressure air pipe 1818, or is communicated with low pressure gas pipe 20.Indoor set is communicated with middle hydraulic fluid pipe 19 simultaneously, at middle hydraulic fluid pipe 19, near indoor set position, is provided with indoor set electric expansion valve 5.
Introduce respectively the connection of high-pressure air pipe 18, middle hydraulic fluid pipe 19 and low pressure gas pipe 20 below:
(1) high-pressure air pipe
High-pressure air pipe 18 is divided into a plurality of branches according to indoor set quantity by a pipeline, on the trunk pipeline of branch's front end, is provided with high-pressure air pipe stop valve 10, for controlling the connection of high-pressure air pipe 18 pipelines or closing.High-pressure air pipe 18 is connected with the high-pressure side of off-premises station 15 with low pressure gas pipe 20 by the first cross valve 11 and connecting line, on connecting line, be provided with unidirectional stop valve 13, the another port of the first cross valve 11 is connected with a bypass capillary 12, and the other end capillaceous is connected with the tube connector that leads to low pressure gas pipe 20.When heat-reclamation multi-compressors of the present utility model is operated in non-complete refrigeration mode, these the first cross valve 11 power down, make high-pressure air pipe 18 be communicated with the high-pressure side of off-premises station, and bypass capillary 12 is communicated with low pressure gas pipe 20 by connecting line; When heat-reclamation multi-compressors of the present utility model is operated in complete refrigeration mode, power on to the first cross valve 11, make high-pressure air pipe 18 and be connected with low pressure gas pipe 20 by connecting line, bypass capillary 12 is communicated with the high-pressure side of off-premises station, controls high-pressure air pipe 18 simultaneously and is communicated with indoor set.
So, make heat-reclamation multi-compressors when complete refrigeration mode, high-pressure air pipe is converted to low pressure gas pipe, form two low pressure line systems, refrigerant is circulated to can get back to off-premises station completion system by low pressure gas pipe and two pipelines of high-pressure air pipe after indoor set participates in freezing heat exchange simultaneously through middle hydraulic fluid pipe.Effectively solve heat-reclamation multi-compressors under the complete refrigeration mode of operation, refrigerant is full of the situation of high-pressure air pipe, even if high-pressure air pipe does not participate in refrigerating operaton, can not avoid leaking to this pipeline in refrigerant, causes the uncontrolled problem of coolant quantity.Can effectively improve the ability of heat-reclamation multi-compressors under complete refrigeration mode.Due to the conversion of pipe-line system, be equivalent to two low pressure lines, not only refrigerant utilization rate significantly improves, and greatly reduces the low-pressure side pressure drop of off-premises station simultaneously, significantly improves the efficiency level of heat-reclamation multi-compressors under complete refrigeration mode.
(2) hydraulic fluid pipe in
Middle hydraulic fluid pipe 19 is similar to high-pressure air pipe 18, different according to indoor set quantity, be divided into a plurality of branches, each branch connects respectively an indoor set, on the trunk pipeline of the front end of branch, a middle hydraulic fluid pipe stop valve 9 is set, middle hydraulic fluid pipe 19 is communicated with off-premises station, and is provided with off-premises station electric expansion valve 14 in the one end near off-premises station.
(3) low pressure gas pipe
Similar to high-pressure air pipe 18, different according to indoor set quantity, be divided into a plurality of branches, each branch connects respectively an indoor set, and a low pressure gas pipe stop valve 3 is set on the trunk pipeline of branch's front end.Low pressure gas pipe 20 is connected with the low-pressure side of off-premises station by connecting line, and the pipeline of the connection between low pressure gas pipe stop valve 3 and the survey of off-premises station low pressure is connected with high-pressure air pipe 18 by the first cross valve 11.
The heat-reclamation multi-compressors of the utility model embodiment also comprises compressor 1, gas-liquid separator 2 and oil eliminator 17.As shown in Figure 1, and the connected mode of traditional heat-reclamation multi-compressors is basic identical in the connection of these parts.Compressor 1 is connected by pipeline with gas-liquid separator 2, and gas-liquid separator 2 is connected with off-premises station low-pressure side by the second cross valve 16.Another link of compressor 1 be connected with oil eliminator 17, another link of oil eliminator 17 is communicated with the tube connector between the high-pressure side of off-premises station and high-pressure air pipe 18.
In other embodiments, on the connecting line that can be connected with the high-pressure side of off-premises station at high-pressure air pipe 18, the first control valve is set, controls high-pressure air pipe 18 and be communicated with the on high-tension side of off-premises station; On the connecting line being connected with off-premises station low-pressure side at high-pressure air pipe 18, the second control valve is set, controls being communicated with of low-pressure side of high-pressure air pipe 18 and off-premises station.As when heat-reclamation multi-compressors moves complete refrigeration mode, close the first control valve, open the first control valve, high-pressure air pipe 18 is communicated with the low-pressure side of off-premises station; When heat-reclamation multi-compressors is operated in other patterns, controls high-pressure air pipe 18 and be communicated with the high-pressure side of off-premises station.
It should be noted that herein, be provided with off-premises station mainboard controller in off-premises station, the organ that the system that described off-premises station mainboard controller is whole heat-reclamation multi-compressors is controlled, plays the effects such as data analysis and command execution.
Accordingly, heat-reclamation multi-compressors control method is below described.The concrete enforcement of the method is undertaken by controlling the concrete parts of aforesaid heat-reclamation multi-compressors.The utility model is mainly that heat-reclamation multi-compressors is carried out to two low-voltage tube conversions.This method is according to running situation, refrigerant state to be judged, then regulates the control structure of associated high-pressure air pipe 18 cross valves or two control valves, completes the object regulating for system refrigerant pipeline state.Its concrete judgement implementation process is as follows: first, gatherer process for data message, the organ that off-premises station mainboard controller is controlled as system, play the effects such as data analysis and command execution, indoor set requires to carry out different operational modes according to client's difference, and these patterns are delivered in off-premises station mainboard controller by communication system, for off-premises station mainboard controller analysis judgement; Secondly, be after unit operation pattern is judged, draw the situation of operation off-premises station running status, and control the state that correlated characteristic is carried out off-premises station operational excellence; Finally, off-premises station mainboard controller, according to outer machine running status situation, is controlled high-pressure air pipe 18 cross valves or two control valves and is carried out on-off action, completes the controlling run of two low pressure lines.
Referring to Fig. 2, concrete execution comprises the following steps:
S100, judges that whether described heat-reclamation multi-compressors moves complete refrigeration mode, obtains the first judged result.
Step S100 specifically comprises the following steps:
S110, judges whether running refrigerating patterns of all indoor sets according to indoor set ruuning situation;
S120, if all indoor sets running refrigerating pattern all obtains the first judged result that described heat-reclamation multi-compressors moves complete refrigeration mode;
S130, if not all indoor sets running refrigerating pattern, obtains the first judged result of the non-complete refrigeration mode of described heat-reclamation multi-compressors operation.
After indoor set start operation, first off-premises station mainboard controller judges system running pattern, this is the basis of other controls, if now whole indoor sets is all refrigeration mode, off-premises station mainboard controller is judged to be heat-reclamation multi-compressors according to indoor set pattern statistical conditions and now moves complete refrigeration mode; If now whole indoor sets is not to be all refrigeration mode, the indoor set running refrigerating pattern having, some off-premises station operation heating modes, or indoor set all moves heating mode (the non-complete refrigeration mode of heat-reclamation multi-compressors comprises: main body refrigeration, main body heat, heat completely, recuperation of heat several modes completely), and off-premises station mainboard controller is judged to be heat-reclamation multi-compressors according to indoor set pattern statistical conditions and now moves non-complete refrigeration mode.
S200, according to described the first judged result, if heat-reclamation multi-compressors moves complete refrigeration mode, controls high-pressure air pipe 18 and is communicated with the low-pressure side of off-premises station.
System is according to the built-in pre-set programs of off-premises station mainboard controller, the control action of starting shooting, and compressor 1, blower fan and various control components and parts are controlled normal boot-strap operation according to system.Magnetic valve (control valve) moves according to off-premises station mainboard controller, carries out open and close controlling.In embodiment as shown in Figure 1, control the first cross valve 11 and obtain electric commutation, high-pressure air pipe 18 is connected with off-premises station low-pressure side, now the refrigerant state of high-pressure air pipe 18 inside of system is low-pressure low-temperature state, i.e. the suction side of off-premises station.Complete after the conversion of high-low pressure pipe, system has two air-breathing low pressure lines, forms two low pressure line systems.
S300, according to described the first judged result, if the non-complete refrigeration mode of heat-reclamation multi-compressors operation is controlled described high-pressure air pipe 18 and is communicated with the high-pressure side of described off-premises station.
System is according to the built-in pre-set programs of off-premises station mainboard controller, the control action of starting shooting, and compressor 1, blower fan and various control components and parts are controlled normal boot-strap operation according to system.Magnetic valve (control valve) moves according to off-premises station mainboard controller, carries out open and close controlling.In embodiment as shown in Figure 1, control the first cross valve 11 dead electricity (power down) commutation, the high-pressure side of high-pressure air pipe 18 and off-premises station is connected, now the refrigerant state of high-pressure air pipe 18 inside of system is high pressure-temperature state.Complete after the conversion of high-low pressure pipe, system has the refrigerant pipe of three different conditions, and high-pressure air pipe 18, middle hydraulic fluid pipe 19 and low pressure gas pipe 20 can provide to system the refrigerant source of three kinds of stable states.
This heat-reclamation multi-compressors control method, make heat-reclamation multi-compressors when complete refrigeration mode, high-pressure air pipe is converted to low pressure gas pipe, form two low pressure line systems, refrigerant is circulated to can get back to off-premises station completion system by low pressure gas pipe and two pipelines of high-pressure air pipe after indoor set participates in freezing heat exchange simultaneously through middle hydraulic fluid pipe.Effectively solve heat-reclamation multi-compressors under the complete refrigeration mode of operation, refrigerant is full of the situation of high-pressure air pipe, even if high-pressure air pipe does not participate in refrigerating operaton, can not avoid leaking to this pipeline in refrigerant, causes the uncontrolled problem of coolant quantity.Can effectively improve the ability of heat-reclamation multi-compressors under complete refrigeration mode.Due to the conversion of pipe-line system, be equivalent to two low pressure lines, not only refrigerant utilization rate significantly improves, and greatly reduces the low-pressure side pressure drop of off-premises station simultaneously, significantly improves the efficiency level of heat-reclamation multi-compressors under complete refrigeration mode.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (6)
1. a heat-reclamation multi-compressors, comprises high-pressure air pipe, low pressure gas pipe and off-premises station, it is characterized in that:
Described high-pressure air pipe is connected with the high-pressure side of described off-premises station and the low-pressure side of described off-premises station respectively by control valve and connecting line;
Described low pressure gas pipe is connected with the low-pressure side of described off-premises station.
2. heat-reclamation multi-compressors according to claim 1, is characterized in that:
Described control valve comprises the first control valve and the second control valve;
Described high-pressure air pipe is connected with the high-pressure side of described off-premises station by described the first control valve and connecting line;
Described high-pressure air pipe is connected with the low-pressure side of described off-premises station by described the second control valve and connecting line.
3. heat-reclamation multi-compressors according to claim 1, is characterized in that:
Described control valve is a cross valve;
When not powering on, described cross valve is communicated with the high-pressure side of described high-pressure air pipe and described off-premises station by connecting line;
After powering on, described cross valve is communicated with the low-pressure side of described high-pressure air pipe and described off-premises station by connecting line.
4. heat-reclamation multi-compressors according to claim 1, is characterized in that, described high-pressure air pipe is connected with described low pressure gas pipe by described control valve and described connecting line, thereby connects the low-pressure side of described off-premises station.
5. heat-reclamation multi-compressors according to claim 3, is characterized in that, also comprises bypass capillary;
Four links of described cross valve are respectively the first link, the second link, the 3rd link and the 4th link;
Described the first link connects described high-pressure air pipe; Described the second link connects the on high-tension side connecting line that leads to described off-premises station; Described the 3rd link connects the connecting line of the low-pressure side of leading to described off-premises station; Described the 4th link connects one end of described bypass capillary;
The other end of described bypass capillary is communicated with the tube connector that leads to the low-pressure side of described off-premises station.
6. according to the heat-reclamation multi-compressors described in claim 1 to 5 any one, it is characterized in that, also comprise a plurality of indoor sets and the indoor set converter identical with described indoor set quantity;
Described high-pressure air pipe is connected with described indoor set by described indoor set converter with described low pressure gas pipe;
The corresponding described indoor set of indoor set converter described in each;
Described indoor set converter controls described high-pressure air pipe and/or described low pressure gas pipe is communicated with described indoor set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420182105.9U CN203908094U (en) | 2014-04-15 | 2014-04-15 | Heat recovery multi-split air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420182105.9U CN203908094U (en) | 2014-04-15 | 2014-04-15 | Heat recovery multi-split air conditioner |
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| CN203908094U true CN203908094U (en) | 2014-10-29 |
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| CN201420182105.9U Expired - Lifetime CN203908094U (en) | 2014-04-15 | 2014-04-15 | Heat recovery multi-split air conditioner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015158109A1 (en) * | 2014-04-15 | 2015-10-22 | 珠海格力电器股份有限公司 | Heat recovery multi-split air conditioner and control method therefor |
| CN108151350A (en) * | 2017-12-20 | 2018-06-12 | 广东美的暖通设备有限公司 | Three control multi-line systems and its control method |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
-
2014
- 2014-04-15 CN CN201420182105.9U patent/CN203908094U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015158109A1 (en) * | 2014-04-15 | 2015-10-22 | 珠海格力电器股份有限公司 | Heat recovery multi-split air conditioner and control method therefor |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| CN108151350A (en) * | 2017-12-20 | 2018-06-12 | 广东美的暖通设备有限公司 | Three control multi-line systems and its control method |
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Granted publication date: 20141029 |