CN213872917U

CN213872917U - Compact type double-indoor-unit air conditioning system

Info

Publication number: CN213872917U
Application number: CN202022909769.9U
Authority: CN
Inventors: 谭赞松; 王铭升; 黄章义; 杨经良
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-08-03
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a two indoor unit air conditioning system of compact, including the frame, the symmetry is located the wind channel system, the throttling arrangement of both sides about the frame, locate the first and second compressor at middle part, with the heat exchanger of these two compressor intercommunications, first, second compressor with space between the wind channel system is electrical apparatus box installation position. The utility model discloses can save unit installation space, energy-conserving advantage is obvious, and maintenance control convenient and fast, unit intensity advantage are obvious, and the mountable is used under more adverse circumstances.

Description

Compact type double-indoor-unit air conditioning system

Technical Field

The utility model relates to a refrigeration plant especially relates to a compact pair of indoor set air conditioning system convenient to install under the limited environment in space.

Background

The existing commercial small-sized air conditioner internal unit machine unit uses a household machine type using mode under the condition of a double-system air conditioner, namely a double-internal-unit installation mode is used, but the mode is greatly limited under a special installation environment. For example, when the air conditioning unit is installed in a ship, a vehicle or other environment with limited special space, the strength and size of the air conditioning unit are both required. Under the specific environments, the existing air conditioning room double inner machines occupy larger space, and the problems of energy conservation due to interference and low strength of the inner machines exist between the two inner machines.

Therefore, how to overcome the defects that the existing air conditioner indoor unit used in a specific environment occupies a large space, the interference between the indoor units is not energy-saving and the strength of the indoor unit is not high is a problem to be solved urgently in the industry, so as to meet the urgent need of the industry for the small-space multifunctional air conditioner indoor unit.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve present air conditioner indoor set occupation space that is used for under the specific environment great, there is not energy-conserving and the not high problem of interior machine intensity of interference between the interior machine, provide a space utilization height, energy-conservation and the high compact pair of indoor set air conditioning system of intensity.

The utility model provides a pair of two indoor unit air conditioning system of compact, including the frame, the symmetry is located the wind channel system, the throttling arrangement of both sides about the frame, locate the first, the second compressor at middle part, with the heat exchanger of these two compressor intercommunications, first, the second compressor with space between the wind channel system is electrical apparatus box installation position.

Preferably, the air duct system comprises an air duct and an evaporator which is arranged in the air duct and inclines towards the outside, the top of the air duct system is provided with a fan assembly, an air outlet on the side surface of the lower portion of the air duct system is provided with a heating device, and the lower portion of the evaporator is provided with a water receiving disc.

Preferably, the fan assembly is three axial fans arranged on each side.

Preferably, the heating device is a PTC electric heater.

Preferably, the air duct of the air duct system is of a metal plate structure.

Preferably, the heat exchanger is a plate heat exchanger and is arranged at the front upper part of the frame.

Preferably, the space above the first and second compressors and behind the heat exchanger is a first electrical box mounting position.

Preferably, the first electrical appliance box mounting position is provided with a switch power supply electrical appliance box.

Preferably, the space between the rear part of the second compressor and the rear side plate of the frame is a second electrical box mounting position.

Preferably, the fixing bracket of the throttling device is fixedly connected with the sealing plate of the air duct system, and the throttling device is arranged in the vacant space at two sides of the first compressor and the second compressor.

The utility model provides a two system units adopt the overall arrangement of left and right sides mirror symmetry structure, the middle mode that sets up the compressor. The unit installation space is greatly saved, and the overall structure size of the air conditioner is reduced; the two sets of internal machines are independent systems, do not interfere with each other, share one bedplate for replacement, and can achieve the effect of energy conservation; the air duct uses a metal plate structure, so that the strength of the unit can be improved, and the reliability of the unit in operation in severe environment is improved. And the maintenance control is convenient and fast.

Drawings

Fig. 1 is a front view of the embodiment of the present invention with a front panel removed;

FIG. 2 is a top view of FIG. 1 with the top plate removed;

FIG. 3 is a rear view of the rear side panel of FIG. 1 with the rear panel removed;

fig. 4 is the air inlet and outlet schematic diagram of the embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1 and 2, the utility model provides a pair of compact two indoor unit air conditioning system's embodiment, it includes frame 1, two indoor units adopt the structural layout mode installation of left and right sides mirror symmetry. Namely, the double-indoor-unit air conditioning system comprises air duct systems, filters, unloading valves, throttling devices,

electronic expansion valves

51 and 52 and other components which are symmetrically arranged on the left side and the right side of the frame 1, and a first compressor 31 and a second compressor (which are covered by the first compressor) which are longitudinally arranged in the middle of the two air duct systems from front to back. Wherein, one compressor and the components of the air duct system, the filter, the unloading valve, the gas-liquid separator and the throttle device, such as the electronic expansion valve, on one side are an independent system, and the two compressors are both communicated with a platen heat exchanger 4, namely, two independent systems share one platen heat exchanger 4. And the vacant space between the first compressor and the second compressor and between the air duct system and the side plates is an electric appliance box mounting position. Referring to fig. 4, the air duct of the air duct system is provided with

evaporators

21 and 22 inclined from bottom to top to outside, the top of the air duct system is provided with a fan assembly, the

heating devices

121 and 122 are disposed near the

air outlets

101 and 102 on the left and right sides of the lower portion, and the obliquely arranged

evaporators

21 and 22 form a certain included angle with the air inlet direction, which is beneficial to heat exchange of the evaporators. The lower parts of the

evaporators

21 and 22 are provided with water receiving discs, and

water outlets

81 and 82 of the water receiving discs are communicated with the outside. The fan assembly of this embodiment is a total of six

axial fans

61, 62 disposed on both sides, three on each side. The heating device is a PTC electric heater. The axial flow fan 61 presses air downwards, and PTC electric heating is placed at the position after the air passes through the evaporator and used for heating the circulating air of the unit. The air duct system is supplied with air from the

air inlets

91 and 92 at the top and is discharged from the

air outlets

101 and 102 at the left and right sides of the lower portion. The plate heat exchanger 4 is fed with cooling liquid through an inlet 112 and discharged with cooling liquid through an outlet 111. The cooling liquid may be an anti-freezing liquid or water with an anti-freezing liquid added. The air duct of the air duct system adopts a sheet metal structure, and a display screen 100 is arranged on the front panel of the frame 1.

Specifically, as shown in fig. 1 and 2, the plate heat exchanger 4 is disposed in the frame 1 at a front upper portion of the first compressor 31. And the space at the upper parts of the first and second compressors and the rear part of the plate heat exchanger 4 is a first electrical box mounting position. The first electrical box mounting position is provided with a switching power supply electrical box 71 in which a switching power supply and a wiring board and the like are arranged, and the switching power supply supplies power to the six

axial flow fans

61 and 62. As shown in fig. 3, a space between the rear portion of the second compressor and the rear side plate of the frame 1 is a second electrical box mounting location 72. According to actual need, with the fan dispersion in unit both sides, the mid portion can leave partial space and be used for settling the electrical apparatus box. If there are more components inside the electric appliance box, a seam pin type layout mode can be used, and the vacant space is fully utilized.

Two systems that this embodiment mirror symmetry set up can independently operate alone, utilize closed wind channel, cut apart two systems, and when a system goes wrong, another system can continue normal operating, in some special environment, can regard as the system backup to use, even the air conditioner goes wrong, guarantees to continue to refrigerate, gives the certain operable time of maintenance. The fixed supports of the unloading valve and the electronic expansion valve in the unit are welded and fixed with the air duct sealing plate, so that the space is saved, the pipeline fixation is enhanced, and the integral vibration resistance of the unit is improved. The electronic expansion valve and the unloading valve are respectively arranged at the vacant positions on the two sides of the compressor, the space inside the unit is fully and efficiently utilized, the electronic expansion valve assembly and the unloading valve assembly are welded well outside the unit in a prewelding mode, then the whole unit is placed in the unit, and the interfaces are arranged at the positions on the two sides of the unit, so that the unit is convenient to install.

The utility model provides a compact twin indoor unit air conditioning system is roughly like this work, please refer to fig. 1, fig. 4:

in this embodiment, there are two independent refrigerant systems, such as the first system. After the refrigerant of the first compressor 31 is compressed to do work, the high-temperature and high-pressure gaseous refrigerant is changed from the exhaust pipe to the plate 4, after the heat is dissipated by the cooling liquid in the plate, the refrigerant is changed into a relatively low-temperature and high-pressure refrigerant, passes through the filter and the electronic expansion valve 51, is changed into a low-temperature and low-pressure liquid refrigerant, enters the evaporator 21 to cool the indoor air, is changed into a low-temperature and low-pressure gaseous refrigerant after coming out of the evaporator 51, and enters the air suction pipe to return to the compressor 51 again. Meanwhile, air is pressed into the air duct from the outer side of the air conditioner through the axial flow fan 61, and during refrigeration, the air passes through the evaporator 51 and then enters the room after passing through the PTC electric heater 121. Thus, the refrigeration cycle is performed

The utility model discloses can save unit installation space, energy-conserving advantage is obvious, and maintenance control convenient and fast, unit intensity advantage are obvious, and the mountable is used under more adverse circumstances.

The above description is only an embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The compact type double-indoor-unit air conditioning system comprises a frame and is characterized by further comprising an air duct system, a throttling device, a first compressor, a second compressor and a heat exchanger, wherein the air duct system and the throttling device are symmetrically arranged on the left side and the right side of the frame, the first compressor and the second compressor are arranged in the middle of the frame, the heat exchanger is communicated with the two compressors, and a vacant space between the first compressor and the second compressor and the air duct system is an electric appliance box installation position.

2. The compact dual indoor unit air conditioning system according to claim 1, wherein the air duct system includes an air duct, an evaporator inclined to the outside and disposed in the air duct, a fan assembly disposed at the top of the air duct system and a heating device disposed at the air outlet on the lower side of the air duct system, and a water pan disposed at the lower portion of the evaporator.

3. A compact twin indoor unit air conditioning system as set forth in claim 2 wherein said fan assemblies are three axial fans on each side.

4. A compact twin indoor unit air conditioning system as defined in claim 2 wherein said heating means is a PTC electric heater.

5. The compact dual indoor unit air conditioning system according to claim 2, wherein the air ducts of the air duct system are all of sheet metal structure.

6. The compact twin indoor unit air conditioning system according to claim 1, wherein the heat exchanger is a plate heat exchanger and is provided at a front upper portion of the frame.

7. The compact twin indoor unit air conditioning system according to claim 1, wherein the vacant locations in the upper portions of the first and second compressors and the rear portion of the heat exchanger are first electrical box mounting locations.

8. The compact twin indoor unit air conditioning system according to claim 7, wherein the first electrical box mounting location is provided with a switching power supply electrical box.

9. The compact twin indoor unit air conditioning system according to claim 1, wherein the empty space between the rear portion of the second compressor and the rear side plate of the frame is a second appliance box mounting location.

10. The compact twin indoor unit air conditioning system according to claim 1, wherein the fixing bracket of the throttle device is fixedly connected to the sealing plate of the duct system, and the throttle device is provided in the vacant space on both sides of the first and second compressors.