Air conditioner water heater main unit fusion body with structure complementary air path merging of L-shaped outer heat exchanger

Abstract

The application discloses an air conditioner and water heater main machine fusion body with L-shaped outer heat exchanger structure complementary air path merging, which merges air conditioner main machine heat exchanger and water heater main machine heat exchanger, and is provided with an air conditioner outer heat exchanger refrigerant pipeline system and an air energy water heater outer heat exchanger refrigerant pipeline system in a plurality of L-shaped outer heat exchanger fin plate groups arranged side by side, and is respectively connected to an air conditioner compressor and an air energy water heater compressor to form an air conditioner refrigerant circulation loop and an air energy water heater refrigerant circulation loop, that is, the air conditioner refrigerant circulation loop and the air energy water heater refrigerant circulation loop jointly occupy fin parts of the fin plate groups, when the two independently operate, through vertical fin heat bridge effect, the fin parts corresponding to the stopped operation main machine are used to exchange heat with ambient air, the utilization coefficient of the whole L-shaped outer heat exchanger fin plate group fusion body is improved, and the heat exchange fin area of the operation main machine outer heat exchanger is expanded and the heat exchange temperature difference is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of air conditioner main machine, and particularly relates to an air conditioner water heater main machine fusion body with L-shaped outer heat exchanger structure and complementary wind path merging. BACKGROUND

[0002] Referring to Figures 16 to 18 , the popularity of air energy water heaters is greatly accelerated. At present, household central air conditioner main machines and air energy water heaters have become standard configurations on the equipment platform of a well-furnished house.

[0003] The wind path structure of the outer heat exchanger module of the air conditioner main machine is a paradigm of "low-speed air inlet on the large area of the side and back surfaces + medium-speed air outlet on the front surface + air inlet on the side and air outlet on the side of the wind path".

[0004] The household central air conditioner main machine and the air energy water heater, which have become standard configurations on the equipment platform of a well-furnished house, have the following problems:

[0005] ① Repetitive configuration of equipment resources

[0006] The air conditioner main machine and the air energy water heater main machine are both vapor compression refrigeration equipment, and they not only have the same working principle, but also have very similar mechanical and electrical structures, that is, a fluorine circuit system composed of a compressor, a condenser, a throttling valve and an evaporator driven by a compressor, and a high-temperature heat source medium system and a low-temperature heat source medium system driven by a fan and a water pump.

[0007] In a small equipment platform space, the configuration of two sets of physically independent air conditioner main machine equipment and heat pump water heater equipment with the same principle and similar structure is a repetitive configuration of refrigeration equipment resources and a waste of refrigeration equipment resources.

[0008] ② Increase of invalid and inefficient area of equipment platform

[0009] The household central air conditioner main machine and the air energy water heater (including the main machine and the water tank) have become standard configurations on the equipment platform of a house.

[0010] On the equipment platform of a house, the air conditioner main machine, the air energy water heater and other equipment need to be arranged dispersedly as independent units, and an air inlet channel is also reserved for the outer heat exchanger arranged on the rear side of the air conditioner main machine with a rear-in front-out and side-in side-out wind path structure, and an air inlet and outlet channel is reserved for the evaporator of the air energy water heater main machine, which causes an increase in the distance between the central air conditioner main machine, the air energy water heater main machine and the water tank and other equipment on the equipment platform of a house, and an increase in the invalid and inefficient area. SUMMARY

[0011] To solve the above problems, the application provides an air conditioner water heater main machine fusion body with L-shaped outer heat exchanger structure and complementary wind path merging, and the technical scheme is as follows.

[0012] The L-shaped outer heat exchanger structure complementary air path merging air conditioner water heater main body fusion body of the application comprises:

[0013] An air conditioner air energy water heater main body fusion body shell;

[0014] An L-shaped air conditioner air energy water heater main body fusion body outer heat exchanger is arranged in the air conditioner air energy water heater main body fusion body shell and, together with at least part of the air conditioner air energy water heater main body fusion body shell, forms an air conditioner air energy water heater outer heat exchanger negative pressure cavity which communicates with the L-shaped air conditioner air energy water heater main body fusion body outer heat exchanger heat exchange air path; wherein,

[0015] The L-shaped air conditioner air energy water heater main body fusion body outer heat exchanger comprises at least one L-shaped outer heat exchanger fin plate group fusion body; the L-shaped outer heat exchanger fin plate group fusion body comprises an air conditioner outer heat exchanger refrigerant pipeline system, an air energy water heater outer heat exchanger refrigerant pipeline system and at least two L-shaped outer heat exchanger fin plate groups arranged side by side from inside to outside, and the air conditioner outer heat exchanger refrigerant pipeline system and the air energy water heater outer heat exchanger refrigerant pipeline system are respectively arranged in each L-shaped outer heat exchanger fin plate group multiple times alternately;

[0016] At least one air conditioner air energy water heater main body fusion body fan is installed on the side of the air conditioner air energy water heater combination body shell and communicates with the air conditioner air energy water heater outer heat exchanger negative pressure cavity;

[0017] An air conditioner compressor is arranged in the air conditioner air energy water heater main body fusion body shell, is used for connecting the air conditioner outer heat exchanger refrigerant pipeline system and an external air conditioner inner heat exchanger refrigerant pipeline to form at least one set of air conditioner refrigerant circulating loop, and serves as an air conditioner system refrigerant circulating power;

[0018] An air energy water heater compressor is arranged in the air conditioner air energy water heater main body fusion body shell, is used for connecting the air energy water heater outer heat exchanger refrigerant pipeline system and a heat exchanger refrigerant pipeline in an external air energy water heater water tank to form at least one set of air energy water heater refrigerant circulating loop, and serves as an air energy water heater refrigerant circulating power.

[0019] The L-shaped outer heat exchanger structure complementary air path merging air conditioner water heater main body fusion body of the application further comprises a partition plate;

[0020] The partition plate is installed and separates the inner cavity of the air conditioner air energy water heater main body fusion body shell into an outer heat exchanger space and an equipment installation space;

[0021] The L-shaped air conditioner air energy water heater main body fusion body outer heat exchanger is arranged in the outer heat exchanger space and cooperates to form the air conditioner air energy water heater outer heat exchanger negative pressure cavity; the air energy water heater compressor is installed in the air conditioner air energy water heater outer heat exchanger negative pressure cavity and is located on one side close to the partition plate;

[0022] The air conditioner compressor is arranged in the equipment installation space.

[0023] The L-shaped air conditioner air energy water heater main body fusion body outer heat exchanger structure complementary air path merging air conditioner water heater main body fusion body further comprises an air conditioner main body four-way valve, an air conditioner main body expansion valve, an air energy water heater four-way valve, an air energy water heater expansion valve and an electrical box arranged in the air conditioner air energy water heater outer heat exchanger negative pressure cavity above the air energy water heater compressor in the equipment installation space;

[0024] The air conditioner main body four-way valve and the air conditioner main body expansion valve are arranged on the air conditioner refrigerant circulating loop;

[0025] The air energy water heater four-way valve and the air energy water heater expansion valve are arranged on the air energy water heater refrigerant circulating loop.

[0026] The L-shaped air conditioner air energy water heater main body fusion body outer heat exchanger structure complementary air path merging air conditioner water heater main body fusion body comprises two L-shaped outer heat exchanger fin plate groups;

[0027] Each of the L-shaped outer heat exchanger fin plate groups is vertically arranged with a plurality of U-shaped refrigerant pipe groups, and each of the U-shaped refrigerant pipe groups comprises a plurality of U-shaped refrigerant pipes arranged vertically;

[0028] The U-shaped refrigerant pipes in the two U-shaped refrigerant pipe groups parallelly arranged in the two L-shaped outer heat exchanger fin plate groups are connected by a plurality of staggered communication bends to form alternating air conditioner refrigerant branch circuits and air energy water heater branch circuits;

[0029] Each of the air conditioner refrigerant branch circuits in the two L-shaped outer heat exchanger fin plate groups is connected in parallel to form an air conditioner outer heat exchanger refrigerant pipe system, and each of the air energy water heater branch circuits is connected in parallel to form an air energy water heater outer heat exchanger refrigerant pipe system.

[0030] The L-shaped air conditioner air energy water heater main body fusion body outer heat exchanger further comprises an independent L-shaped outer heat exchanger fin plate group arranged side by side on the outside or the inside of the L-shaped outer heat exchanger fin plate group fusion body; the independent L-shaped outer heat exchanger fin plate group is arranged with an air conditioner outer heat exchanger refrigerant independent pipe system and is connected in parallel to the air conditioner outer heat exchanger refrigerant pipe system.

[0031] The L-shaped outer heat exchanger structure complementary air path merging air conditioner water heater main machine fusion body of the application, the number of the L-shaped outer heat exchanger fin plate group is three, which are a first L-shaped outer heat exchanger fin plate group, a second L-shaped outer heat exchanger fin plate group and a third L-shaped outer heat exchanger fin plate group;

[0032] The first L-shaped outer heat exchanger fin plate group is vertically arranged with a plurality of U-shaped refrigerant pipe groups, each of the U-shaped refrigerant pipe groups includes a plurality of U-shaped refrigerant pipes arranged vertically; the U-shaped refrigerant pipes in each of the U-shaped refrigerant pipe groups are connected by a plurality of communication elbows to form an air conditioner refrigerant independent branch;

[0033] The second L-shaped outer heat exchanger fin plate group and the third L-shaped outer heat exchanger fin plate group are each vertically arranged with a plurality of U-shaped refrigerant pipe groups, each of the U-shaped refrigerant pipe groups includes a plurality of U-shaped refrigerant pipes arranged vertically;

[0034] The U-shaped refrigerant pipes in the two parallel U-shaped refrigerant pipe groups in the second L-shaped outer heat exchanger fin plate group and the third L-shaped outer heat exchanger fin plate group are connected by a plurality of staggered communication elbows to form alternating air conditioner refrigerant fusion branches and air energy water heater fusion branches;

[0035] The air conditioner refrigerant independent branches and the air conditioner refrigerant fusion branches are connected in series to form air conditioner refrigerant series branches, and the air conditioner refrigerant series branches are connected in parallel to form an air conditioner outer heat exchanger refrigerant pipe system; and the air energy water heater fusion branches are connected in parallel to form an air energy water heater outer heat exchanger refrigerant pipe system.

[0036] The L-shaped outer heat exchanger structure complementary air path merging air conditioner water heater main machine fusion body of the application, the number of the L-shaped outer heat exchanger fin plate group is two;

[0037] Each of the L-shaped outer heat exchanger fin plate groups is vertically arranged with a plurality of refrigerant pipe groups, each of the U-shaped refrigerant pipe groups includes a plurality of U-shaped refrigerant pipes and air energy water heater refrigerant pipes arranged vertically and alternately;

[0038] The U-shaped refrigerant pipes in the two parallel U-shaped refrigerant pipe groups in the two L-shaped outer heat exchanger fin plate groups are connected by a plurality of communication elbows to form air conditioner refrigerant branches;

[0039] The air energy water heater refrigerant pipes in the two parallel U-shaped refrigerant pipe groups in the two L-shaped outer heat exchanger fin plate groups are connected by a plurality of communication elbows to form air energy water heater branches;

[0040] Wherein, each of the air conditioning refrigerant branch is in parallel to form the air conditioning outer heat exchanger refrigerant pipeline system; each of the air energy water heater branch is in parallel to form the air energy water heater outer heat exchanger refrigerant pipeline system.

[0041] The L-shaped outer heat exchanger structure complementary air conditioning and air energy water heater main body fusion body of the application is characterized in that the shape of the air conditioning and air energy water heater main body fusion body shell is a hexahedron.

[0042] The side of the air conditioning and air energy water heater main body fusion body shell towards the inside of the external device platform is an inside air inlet face; the side of the air conditioning and air energy water heater main body fusion body shell towards the outside of the external device platform is an air outlet face for installing the air conditioning and air energy water heater main body fusion body fan; the two sides between the inside air inlet face and the air outlet face are respectively a lateral air inlet face and a side plate face.

[0043] The inside air inlet face, the lateral air inlet face, the air outlet face and the partition plate cooperate to form the outer heat exchanger space; the partition plate and the side plate face cooperate to form the device installation space.

[0044] The L-shaped outer heat exchanger structure complementary air conditioning and air energy water heater main body fusion body of the application is characterized in that the number of the air conditioning and air energy water heater main body fusion body fan is one or two or three.

[0045] The air conditioning and air energy water heater main body fusion body fan is installed along the vertical direction on the side of the air conditioning and air energy water heater combination body shell towards the outside of the device platform.

[0046] The L-shaped outer heat exchanger structure complementary air conditioning and air energy water heater main body fusion body of the application is characterized in that the air conditioning and air energy water heater main body fusion body fan is an axial flow fan.

[0047] The L-shaped outer heat exchanger structure complementary air conditioning and air energy water heater main body fusion body of the application further comprises an intermediate heat exchanger.

[0048] The two heat exchange medium channels of the intermediate heat exchanger are respectively connected to the air conditioning refrigerant circulation loop and the inner heat exchanger refrigerant pipeline of the building internal air conditioner, and the inner heat exchanger refrigerant pipeline is an air conditioning water circulation loop.

[0049] The application has the following advantages and positive effects compared with the prior art due to the adoption of the above technical scheme:

[0050] I. Improving the EER and COP of the two sets of refrigeration (heat pump) systems of the air conditioner and the water heater

[0051] The air conditioner host air energy water heater host of the embodiment not only combines two into one, has simple structure, smooth air path, reduces the risk of air backflow of the outer facade, improves the refrigeration and heating performance of the host, but also combines the air conditioner host heat exchanger and the water heater host heat exchanger, sets the air conditioner outer heat exchanger refrigerant pipeline system and the air energy water heater outer heat exchanger refrigerant pipeline system in the multiple L-shaped outer heat exchanger fin plate groups arranged side by side, is respectively connected to the air conditioner compressor and the air energy water heater compressor to form the air conditioner refrigerant circulation loop and the air energy water heater refrigerant circulation loop, that is, the air conditioner refrigerant circulation loop and the air energy water heater refrigerant circulation loop jointly occupy the fin part of the L-shaped outer heat exchanger fin plate group, when the air conditioner host and the air energy water heater host operate independently, the fin part of the L-shaped outer heat exchanger fin plate group corresponding to the stopped host is used for the heat exchange function with the ambient air through the vertical fin heat bridge effect, the utilization coefficient of the whole L-shaped outer heat exchanger fin plate group is improved, and the heat exchange fin area of the operating host outer heat exchanger is expanded and the heat exchange temperature difference is reduced;

[0052] When the air conditioner host refrigeration and the air energy water heater heating operate synchronously, the water heater host evaporator can also obtain super-high evaporation pressure and high water heater heat pump energy efficiency by absorbing high-temperature heat release of the air conditioner host condenser through the fin heat bridge effect;

[0053] The embodiment is not only beneficial to saving resources and improving the utilization coefficient of the finned tube heat exchanger, but also beneficial to improving the evaporation pressure during air conditioner heating and hot water production and reducing the condensation pressure during air conditioner refrigeration, so as to improve the EER and COP of the two systems of the air conditioner and the water heater.

[0054] II. Resource saving and energy efficiency improvement

[0055] Under the condition of low load, the variable frequency fan of the household central air conditioner host module operates at low frequency and low speed, and multiple efficiencies such as motor efficiency and mechanical efficiency decrease, so that the total efficiency of the fan as a product of motor efficiency and mechanical efficiency decreases significantly, resulting in low efficiency of the household central air conditioner host under the condition of low load due to capacity redundancy.

[0056] The embodiment is aimed at the capacity redundancy of the outer heat exchanger fan of the household central air conditioner host under low load, and develops the redundancy capacity of the variable frequency fan of the outer heat exchanger of the household central air conditioner host on the basis of complementary structure and combined air path of the air conditioner host outer heat exchanger and the air energy water heater evaporator, so as to convert the redundancy capacity of the variable frequency fan of the central air conditioner host into the air energy water heater host evaporator air path power to replace the special fan of the water heater evaporator, save the air duct and fan components of the air energy water heater host, and improve the comprehensive energy efficiency of the air conditioner and water heater combination system. BRIEF DESCRIPTION OF DRAWINGS

[0057] Figure 1Three-dimensional sectional view of the L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main machine fusion body of embodiment one of the application;

[0058] Figure 2 After the removal of the top cover, the L-shaped air conditioner air energy water heater main machine fusion body outer heat exchanger of the L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main machine fusion body of embodiment one of the application is shown in the top view;

[0059] Figure 3 Three-dimensional schematic diagram of the L-shaped air conditioner air energy water heater main machine fusion body outer heat exchanger of the L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main machine fusion body of embodiment one of the application;

[0060] Figure 4 Another three-dimensional schematic diagram of the L-shaped air conditioner air energy water heater main machine fusion body outer heat exchanger of the L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main machine fusion body of embodiment one of the application;

[0061] Figure 5 Exaggerated schematic diagram of the relationship between the fin vertical heat bridge and the two refrigeration systems three refrigeration pipeline branch of the L-shaped air conditioner air energy water heater main machine fusion body outer heat exchanger of the L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main machine fusion body of embodiment one of the application;

[0062] Figure 6 Principle diagram of the air conditioner water two refrigeration systems of the L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main machine fusion body of embodiment one of the application;

[0063] Figure 7 Air conditioner main machine refrigeration operation principle diagram of the L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main machine fusion body of embodiment one of the application;

[0064] Figure 8 Air energy water heater main machine heating operation principle diagram of the L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main machine fusion body of embodiment one of the application;

[0065] Figure 9 Refrigeration system operation principle diagram of the L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main machine fusion body of embodiment one of the application, which adds an air energy water heater main machine four-way valve to realize reverse defrosting;

[0066] Figure 10 Operation state air path top view of the L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main machine fusion body of embodiment one of the application;

[0067] Figure 11This invention provides a comparative schematic diagram of the pressure-enthalpy diagram of the refrigeration medium circulation, showing how the evaporation pressure of the evaporator in the air conditioner and water heater increases due to the complementary structure and combined airflow path, resulting in increased heat absorption per unit mass of refrigerant, reduced compression work, and increased COP.

[0068] Figure 12 This is a schematic diagram of the refrigerant flow of two air conditioning refrigerant pipeline branches in the air conditioning water heater main unit fusion body with complementary air circulation of L-shaped external heat exchanger structure according to Embodiment 2 of the present invention.

[0069] Figure 13 This is a schematic diagram of the refrigerant flow in one branch of the air source water heater refrigerant pipeline of the air-conditioning water heater main unit integrated with the complementary air-conditioning water heater structure of the L-shaped external heat exchanger in Embodiment 2 of the present invention.

[0070] Figure 14 This is a schematic diagram of the synchronous operation of the air conditioning refrigerant medium branch and the air source water heater refrigerant medium branch of the double-row external heat exchanger finned plate assembly of the L-shaped external heat exchanger structure complementary air path merging air conditioning water heater main unit fusion body in Embodiment 3 of the present invention.

[0071] Figure 15 This is a schematic diagram of an air conditioning water heater system in Embodiment 4 of the present invention, which uses an added plate heat exchanger to produce cold and hot water to supply the air conditioning indoor unit for cooling and heating by merging the complementary air exchanger structure and air duct of the external heat exchanger.

[0072] Figure 16 A 3D view of an existing side-discharge residential central air conditioning unit;

[0073] Figure 17 This is a schematic diagram showing the arrangement of the main unit of an existing side-discharge residential central air conditioning system on the equipment platform.

[0074] Figure 18 This is a 3D view of an existing air source heat pump water heater module and water tank.

[0075] Explanation of reference signs: 1: air conditioner air energy water heater main body fusion shell; 2: partition; 3: air conditioner compressor; 4: air energy water heater compressor; 5: air conditioner air energy water heater main body fusion fan; 6: L-shaped outer heat exchanger fin plate group fusion; 601: L-shaped outer heat exchanger fin plate group; 602: independent L-shaped outer heat exchanger fin plate group; 603: communication elbow; 604: air conditioner outer heat exchanger refrigerant pipeline system; 605: air energy water heater outer heat exchanger refrigerant pipeline system; 606: air conditioner outer heat exchanger refrigerant independent pipeline system; 607: U-shaped refrigerant pipe; 608: first L-shaped outer heat exchanger fin plate group; 609: second L-shaped outer heat exchanger fin plate group; 610: third L-shaped outer heat exchanger fin plate group; 611: upper layer air conditioner refrigerant independent branch; 612: lower layer air conditioner refrigerant independent branch; 613: upper layer air conditioner refrigerant fusion branch; 614: lower layer air conditioner refrigerant fusion branch; 615: upper layer refrigerant branch; 616: lower layer refrigerant branch; 617: air conditioner refrigerant branch; 7: electrical box; 8: air conditioner main body four-way valve; 9: inner heat exchanger refrigerant pipeline; 10: air energy water heater four-way valve; 11: condenser; 12: water tank; 13: throttle valve; 14: intermediate heat exchanger. DETAILED DESCRIPTION

[0076] The L-shaped outer heat exchanger structure complementary air path merging air conditioner water heater main body fusion of the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present application will be more apparent according to the following description and claims.

[0077] Embodiment one

[0078] Reference Figures 1 to 10 In one embodiment, an L-shaped outer heat exchanger structure complementary air path merging air conditioner water heater main body fusion includes an air conditioner air energy water heater main body fusion shell 1, an L-shaped air conditioner air energy water heater main body fusion outer heat exchanger, at least one air conditioner air energy water heater main body fusion fan 5, an air conditioner compressor 3, and an air energy water heater compressor 4.

[0079] The L-shaped air conditioner air energy water heater main body fusion body outer heat exchanger is arranged in the air conditioner air energy water heater main body fusion body shell 1, and is connected with at least part of the air conditioner air energy water heater main body fusion body shell 1 to form an air conditioner air energy water heater outer heat exchanger negative pressure cavity in communication with an L-shaped air conditioner air energy water heater main body fusion body outer heat exchanger heat exchange air path. The L-shaped air conditioner air energy water heater main body fusion body outer heat exchanger includes at least one L-shaped outer heat exchanger fin plate group fusion body 6. The L-shaped outer heat exchanger fin plate group fusion body 6 includes an air conditioner outer heat exchanger refrigerant pipeline system 604, an air energy water heater outer heat exchanger refrigerant pipeline system 605, and at least two L-shaped outer heat exchanger fin plate groups 601 arranged side by side from inside to outside. The air conditioner outer heat exchanger refrigerant pipeline system 604 and the air energy water heater outer heat exchanger refrigerant pipeline system 605 are alternately arranged in each L-shaped outer heat exchanger fin plate group 601.

[0080] The air conditioner compressor 3 is arranged in the air conditioner air energy water heater main body fusion body shell 1, and is connected with the air conditioner outer heat exchanger refrigerant pipeline system 604 and the outer air conditioner inner heat exchanger refrigerant pipeline 9 to form at least one air conditioner refrigerant circulation loop, and serves as the air conditioner system refrigerant circulation power. The air energy water heater compressor 4 is arranged in the air conditioner air energy water heater main body fusion body shell 1, and is connected with the air energy water heater outer heat exchanger refrigerant pipeline system 605 and the inner heat exchanger refrigerant pipeline 9 of the outer air energy water heater tank 12 to form at least one air energy water heater refrigerant circulation loop, and serves as the air energy water heater refrigerant circulation power.

[0081] The air conditioner air energy water heater main body fusion body fan 5 is arranged on the side of the air conditioner air energy water heater combination body shell, and is located away from the L-shaped air conditioner air energy water heater main body fusion body outer heat exchanger and is connected with the air conditioner air energy water heater outer heat exchanger negative pressure cavity. (That is, the L-shaped air conditioner air energy water heater main body fusion body outer heat exchanger and the air conditioner air energy water heater main body fusion body fan 5 respectively occupy three sides of the air conditioner air energy water heater main body fusion body shell 1, and the remaining side corresponding to the air conditioner air energy water heater outer heat exchanger negative pressure cavity can be used to install the air conditioner compressor 3 and the air energy water heater compressor 4, so as to minimize the influence of the compressors on the air path in the air conditioner air energy water heater outer heat exchanger negative pressure cavity)

[0082] The air conditioner host air energy water heater host of the embodiment not only combines two into one, has simple structure, smooth air path, reduces the risk of external facade exhaust backflow, improves the refrigeration and heating performance of the host, but also combines the air conditioner host heat exchanger and the water heater host heat exchanger. The air conditioner outer heat exchanger refrigerant pipeline system 604 and the air energy water heater outer heat exchanger refrigerant pipeline system 605 are arranged in the plurality of L-shaped outer heat exchanger fin plate groups 601 arranged side by side, and are respectively connected to the air conditioner compressor 3 and the air energy water heater compressor 4 to form an air conditioner refrigerant circulation loop and an air energy water heater refrigerant circulation loop, that is, the air conditioner refrigerant circulation loop and the air energy water heater refrigerant circulation loop share the fin part of the L-shaped outer heat exchanger fin plate group 601. When the air conditioner host and the air energy water heater host operate independently, the fin part of the L-shaped outer heat exchanger fin plate group 601 corresponding to the stopped host is used to exchange heat with the ambient air through the transverse fin heat bridge effect, the utilization coefficient of the whole L-shaped outer heat exchanger fin plate group fusion body 6 is improved, and the heat exchange fin area of the operating host outer heat exchanger is expanded and the heat exchange temperature difference is reduced.

[0083] When the air conditioner host and the air energy water heater host operate synchronously, the water heater host evaporator can also absorb the high-temperature heat release of the air conditioner host condenser 11 through the fin heat bridge effect to obtain super-high evaporation pressure and high energy efficiency of the water heater heat pump. Not only is it beneficial to save resources and improve the utilization coefficient of the finned tube heat exchanger, but also it is beneficial to improve the evaporation pressure during air conditioning heating and hot water production and to reduce the condensation pressure during air conditioning cooling, thereby improving the EER and COP of the air conditioner and the water heater systems.

[0084] The specific structure of the air conditioner and water heater host fusion body of the embodiment with the L-shaped outer heat exchanger structure complementary air path combination will be further described below.

[0085] Referring to Figures 3 to 5 In the embodiment, the air conditioner and water heater host fusion body further includes a partition plate 2. The partition plate 2 is installed and separates the inner cavity of the air conditioner and air energy water heater host fusion body shell 1 into an outer heat exchanger space and a device installation space. The L-shaped air conditioner and air energy water heater host fusion body outer heat exchanger is arranged in the outer heat exchanger space and cooperates to form the air conditioner and air energy water heater outer heat exchanger negative pressure cavity described above. Because the air energy water heater has a small volume, the air energy water heater compressor 4 can be installed in the air conditioner and air energy water heater outer heat exchanger negative pressure cavity and located near one side of the partition plate 2, which has little effect on the air path in the air conditioner and air energy water heater outer heat exchanger negative pressure cavity. The air conditioner compressor 3 can be arranged in the device installation space due to its relatively large volume.

[0086] In the embodiment, the air conditioner water heater host fusion body can further include an air conditioner host four-way valve 8, an air conditioner host expansion valve, an air energy water heater four-way valve 10, an air energy water heater expansion valve and an electrical box 7 arranged in the equipment installation space and / or in the air conditioner air energy water heater outer heat exchanger negative pressure cavity above the air energy water heater compressor 4. Generally, most of these devices can be arranged in the equipment installation space, and when the equipment installation space is crowded, the remaining components can be arranged above the air energy water heater compressor 4 (i.e. in the air conditioner air energy water heater outer heat exchanger negative pressure cavity, so that the related fluorine devices make full use of the ventilation blind area in the air conditioner air energy water heater outer heat exchanger negative pressure cavity).

[0087] The air conditioner host four-way valve 8 and the air conditioner host expansion valve are arranged on the air conditioner refrigerant circulating loop. The air energy water heater four-way valve 10 and the air energy water heater expansion valve are arranged on the air energy water heater refrigerant circulating loop. The relays and controllers of the air conditioner host and the air energy water heater module are arranged in the electrical box 7. The air conditioner host expansion valve and the air energy water heater expansion valve can be throttles 13 arranged on the corresponding refrigerant circulating loops.

[0088] The air energy water heater four-way valve 10 arranged can be applied to defrosting of the evaporator (outer heat exchanger fin plate group fusion body) when producing hot water in a low temperature environment. By reversing the air energy water heater four-way valve 10, the heat absorbing evaporator is converted into a condenser 11 to implement reverse heat pump defrosting, and the temperature and humidity conditions of the air source water heater environment are further expanded downward.

[0089] In the embodiment, the shape of the air conditioner air energy water heater host fusion body shell 1 can be a hexahedron.

[0090] The side of the air conditioner air energy water heater host fusion body shell 1 facing the inside of the external equipment platform is an inside air inlet face. The side of the air conditioner air energy water heater host fusion body shell 1 facing the outside of the external equipment platform is an air outlet face for installing an air conditioner air energy water heater host fan 5. The two sides between the inside air inlet face and the air outlet face are a lateral air inlet face and a side plate face respectively. The inside air inlet face, the lateral air inlet face, the air outlet face and the partition plate 2 cooperate to form an outer heat exchanger space, and the partition plate 2 and the side plate face cooperate to form an equipment installation space (i.e. to form a similar arrangement form as the existing air conditioner host, with the front air outlet, one side as the equipment face, and the back and the other side as the air inlet face).

[0091] Further, the number of air conditioner air energy water heater host fusion body fan 5 is one or two or three. The air conditioner air energy water heater host fusion body fan 5 can be installed along the vertical spacing on the exhaust air surface (the side of the air conditioner air energy water heater combination body shell facing the equipment platform outside). Specifically, the air conditioner air energy water heater host fusion body fan 5 can be an axial fan.

[0092] The L-shaped air conditioner air energy water heater host fusion body external heat exchanger of the L-shaped air conditioner water heater host fusion body of the present embodiment is described below:

[0093] In the present embodiment, the number of L-shaped external heat exchanger fin plate groups 601 is two.

[0094] Each L-shaped external heat exchanger fin plate group 601 is arranged vertically with a plurality of U-shaped refrigerant pipe groups, and each U-shaped refrigerant pipe group includes a plurality of U-shaped refrigerant pipes 607 arranged vertically.

[0095] The U-shaped refrigerant pipes 607 in the two U-shaped refrigerant pipe groups parallel to each other in the two L-shaped external heat exchanger fin plate groups are connected by a plurality of staggered communication bends 603 to form alternating air conditioner refrigerant branches and air energy water heater branches;

[0096] Each air conditioner refrigerant branch in the two L-shaped external heat exchanger fin plate groups is arranged in parallel to form the above-mentioned air conditioner external heat exchanger refrigerant pipe system 604. Similarly, each air energy water heater branch is arranged in parallel to form the above-mentioned air energy water heater external heat exchanger refrigerant pipe system 605.

[0097] For ease of understanding, the above-mentioned L-shaped external heat exchanger fin plate group fusion body 6 is further explained: first, since the L-shaped external heat exchanger is bent from a long flat finned tube external heat exchanger, and if a single flat finned tube external heat exchanger is provided with two vertical refrigerant pipe lines, it will not be able to be bent due to the difference in bending radius of the inner and outer refrigerant pipe lines.

[0098] Therefore, the external heat exchanger fin plate group fusion body of the present embodiment is arranged as a combination of a plurality of L-shaped external heat exchanger fin plate groups, U-shaped refrigerant pipes 607 and communication bends 603.

[0099] In the L-shaped outer heat exchanger fin plate group, only one column of insertion holes is arranged for inserting the vertically arranged U-shaped refrigerant pipes 607. For example, if the number of U-shaped refrigerant pipes 607 in each column is 20, based on the refrigerant flow resistance, 5 U-shaped refrigerant pipes 607 can be arranged as a group (one group corresponds to the U-shaped refrigerant pipe group described above, and there are four groups in total). The first side of the 5 U-shaped refrigerant pipes 607 is provided with a bend, and the other side can form a branch through 4 communication bends 603. The uppermost U-shaped refrigerant pipe 607 and the lowermost U-shaped refrigerant pipe 607 flow out of one pipe opening, respectively, as the refrigerant inlet (gas / liquid inlet) and the refrigerant outlet (gas / liquid outlet). That is, the 20 U-shaped refrigerant pipes 607 can form four branches, and the gas pipes and liquid pipes of the four branches are connected in parallel and then connected to the corresponding compressor, four-way valve, and other components.

[0100] In the present embodiment, based on the design concept of combining the air conditioner outer heat exchanger with the air energy water heater evaporator, in order to realize the separate operation of the air conditioner main unit and the air energy water heater main unit, through the vertical fin heat bridge, the fin of the parallel arranged L-shaped outer heat exchanger fin plate group corresponding to the stopped main unit is used. In the present embodiment, the arrangement form of the communication bend 603 is further changed. The communication bend 603 is changed from connecting the vertically adjacent U-shaped refrigerant pipes 607 in the same L-shaped outer heat exchanger fin plate group to connecting the U-shaped refrigerant pipes 607 on the two parallel arranged L-shaped outer heat exchanger fin plate groups, respectively, so that the above-mentioned branch is formed in the fins of the two L-shaped outer heat exchanger fin plate groups. In addition, the communication bends 603 are staggered, that is, the upper and lower two U-shaped refrigerant pipes 607 (a total of four) are arranged in parallel in the horizontal direction. The upper left corner U-shaped refrigerant pipe 607 and the lower right corner U-shaped refrigerant pipe 607 are connected by one communication bend 603, and the lower left corner U-shaped refrigerant pipe 607 and the upper right corner U-shaped refrigerant pipe 607 are connected by one communication bend 603, which is similar to the form of mutual winding, forming two refrigerant flow paths, thereby realizing the function of heat transfer between the two through the vertical fin heat bridge. That is, the communication bends 603 are X-shaped and respectively connect the corresponding U-shaped refrigerant pipes 607. Although the fins between the two L-shaped outer heat exchanger fin plate groups 601 are transversely disconnected, through the left-right staggered arrangement and the up-down staggered arrangement of the air conditioner outer heat exchanger refrigerant pipe system 604 and the air energy water heater outer heat exchanger refrigerant pipe system 605, the vertical fin in the L-shaped outer heat exchanger fin plate group 601 establishes a heat bridge connection, realizes the effective use of the fin heat exchange area of the stopped main unit outer heat exchanger by the running main unit outer heat exchanger, thereby reducing the heat transfer temperature difference of the running main unit outer heat exchanger and improving the system energy efficiency ratio, realizing the structure complementation of the air conditioner main unit outer heat exchanger and the air energy water heater evaporator and the air flow merging.

[0101] Further, based on the power of the air conditioner host and the power of the air energy water heater, the L-shaped air conditioner air energy water heater host fusion body outer heat exchanger further comprises an independent L-shaped outer heat exchanger fin plate group 602, that is, a total of three L-shaped outer heat exchanger fin plate groups 601, arranged side by side on the outer side or inner side of the L-shaped outer heat exchanger fin plate group fusion body 6. The independent L-shaped outer heat exchanger fin plate group 602 is provided with an air conditioner outer heat exchanger refrigerant independent pipeline system 606, which is connected in parallel to the air conditioner outer heat exchanger refrigerant pipeline system 604, so that the air conditioner host can occupy about two-thirds of the fin resources to meet the refrigerating capacity demand of the air conditioner host.

[0102] In this embodiment, the air conditioner host and the air energy water heater host can be operated simultaneously or individually.

[0103] Referring to Figure 7 When the air conditioner host is running, the air conditioner air energy water heater outer heat exchanger negative pressure chamber drives the flow and phase change of the refrigerant in the air conditioner outer heat exchanger refrigerant pipeline system 604 (air conditioner fluorine circuit) driven by the air conditioner compressor 3; coupled with the phase change heat exchange of the refrigerant in the air conditioner outer heat exchanger refrigerant pipeline system 604, the air conditioner air energy water heater host fusion body fan 5 pushes the airflow through the fin gap of the air conditioner air energy water heater host fusion body outer heat exchanger, and implements heat exchange between the ambient air and the refrigerant in the air conditioner outer heat exchanger refrigerant pipeline system 604; the fan discharges the airflow to the environment, and at the same time, a negative pressure is generated in the negative pressure chamber before the fan suction port; the negative pressure pulls the ambient air to flow through the gap of the heat-conducting metal fin of the air conditioner air energy water heater host fusion body outer heat exchanger, and exchanges heat with the refrigerant in the pipe through the fins on both sides of the gap and the metal pipe wall covered by the fins; in summer, the ambient air passes through the fins to raise the temperature, absorb heat and take away heat to ensure that the high-temperature and high-pressure refrigerant gas in the metal pipe continuously releases heat and condenses; in winter, the ambient air passes through the fins to lower the temperature, release heat and leave heat to ensure that the low-pressure refrigerant liquid in the metal pipe continuously absorbs heat and evaporates; after heat exchange, the air flowing into the negative pressure chamber is pressurized and accelerated by the fan, and is injected upward into the environment to diffuse and dilute.

[0104] Referring to Figure 8In this embodiment, when the air source water heater is running, the air source water heater compressor 4 in the negative pressure chamber of the external heat exchanger drives the flow and phase change heat absorption and release of the refrigerant in the refrigerant pipeline system 605 (air source water heater refrigerant circuit) of the external heat exchanger. Coupled with the phase change heat transfer of the refrigerant in the refrigerant pipeline system 605, the air source water heater main unit fan 5 creates a negative pressure state in the negative pressure chamber of the external heat exchanger, pulling ambient air through the evaporator fin gaps to reduce the temperature and filter out... Water vapor releases heat, ensuring the continuous evaporation of the low-pressure refrigerant liquid in the refrigerant circuit of the air source water heater and the continuous condensation and heat release of the high-temperature and high-pressure refrigerant gas in the condenser 11 inside the water tank 12 after being pressurized by the compressor; the air that enters the negative pressure chamber of the air source water heater after releasing heat to the corresponding part of the refrigerant pipeline system 605 of the air source water heater external heat exchanger is drawn in by the fan 5 of the air source water heater main unit after the negative pressure chamber of the air source water heater external heat exchanger, pressurized and accelerated, and injected upward into the ambient atmosphere for diffusion and dilution.

[0105] In this embodiment, the air-source heat pump water heater unit, which is composed of the air conditioner unit's external heat exchanger and the air source heat pump water heater unit's evaporator, has densely packed fins with a very small fin spacing, typically only 1-2 mm. The fin gaps become the main resistance in the airflow path of the air conditioner unit's external heat exchanger and the water heater unit's evaporator. Inside the negative pressure zone of the air-source heat pump water heater unit, the operation of the integrated fan 5 results in a relatively balanced and low air pressure, establishing a significant pressure difference with the ambient air pressure outside the finned tube external heat exchanger. This pressure difference is the driving force for ventilation and heat exchange in the air conditioner unit's external heat exchanger and the air source heat pump water heater unit's evaporator, used to overcome the resistance to airflow caused by the fin gaps.

[0106] This embodiment presents an integrated air conditioning and water heater unit that combines the external heat exchanger structure with complementary airflow by using longitudinal finned thermal bridges. This effectively develops the redundancy capability of the external heat exchanger and fan of the residential central air conditioning unit, and improves the overall energy efficiency of the air conditioning and water heater combined system.

[0107] Compared to individual split-system air conditioners, residential central air conditioning systems are widely popular in residential decoration because they only require a single air conditioning unit platform, and the multiple indoor units embedded in the ceilings of each room appear grand and neat. They are even considered a representative configuration for high-end residences. Variable frequency compressors and fans, representing a major breakthrough in refrigeration technology, offer wide load adaptability to refrigeration systems due to the adjustability of exhaust volume, cooling capacity, and external circulation air volume. They can respond to the real-time load demands of 1, 2, 3...n indoor units operating simultaneously, and have been widely used in variable load residential central air conditioning systems.

[0108] However, under low load conditions, the inverter compressor and inverter fan of the residential central air conditioning unit operate at low frequency and low speed, and multiple efficiencies such as motor efficiency and mechanical efficiency decrease. This causes a significant decrease in the total efficiency of the compressor and the total efficiency of the fan, which are composite functions of motor efficiency and mechanical efficiency, resulting in low efficiency of the residential central air conditioning unit under low load conditions. In other words, the air conditioning compressor 3 and the external heat exchanger fan are inefficient under low load conditions due to capacity redundancy.

[0109] In terms of time percentage, the time percentage of residential central air conditioning unit load rate is 50% or above is very low, while the time percentage of load rate is below 30% is relatively high. This is because bedrooms in a family home are usually not fully occupied, and only the air conditioning units in rooms where people are sleeping will run at night. Furthermore, the air conditioning units in occupied rooms and the air conditioning units in public spaces such as living rooms and dining rooms run at different times.

[0110] The redundancy in the capacity of the external heat exchanger and fan of the residential central air conditioning unit under low load provides the conditions for integrating the evaporator air path of the air source water heater unit into the air path of the external heat exchanger of the air conditioning unit.

[0111] In this embodiment, the three L-shaped external heat exchanger finned plate assemblies 601 are shared by the air conditioning unit and the water heater unit. The refrigerant pipelines (fluorine copper pipes) of the air conditioning unit's external heat exchanger and the air source water heater unit's evaporator are staggered left and right and up and down in the L-shaped external heat exchanger finned plate assemblies 601 in the middle and outer layers, so as to achieve the complementary structure and combined air path of the air conditioning unit's external heat exchanger and the air source water heater unit's evaporator.

[0112] This embodiment utilizes the complementary structure and combined airflow of the air conditioner's external heat exchanger and the air source water heater's evaporator. During operation, the vertical fins of the heat bridge between the two sets of refrigerant pipelines in the air conditioner's external heat exchanger and the water heater's evaporator are used to exploit the redundancy of the residential central air conditioning unit's external heat exchanger, thereby increasing the heat absorption area and capacity of the water heater's evaporator.

[0113] ① If the air conditioner unit is in cooling operation, the air conditioner air source water heater unit integrates the external heat exchanger as the condenser 11, and directly introduces part of the high-temperature condensation heat of the refrigerant into the water heater evaporator pipeline through the vertical fin heat bridge, thereby increasing the evaporation temperature and evaporation pressure of the refrigerant in the evaporator.

[0114] ② If the air conditioner host is in a heating operation state, the air conditioner air energy water heater host fusion body outer heat exchanger acts as an evaporator, and the water heater evaporator jointly absorbs heat from the environment airflow; if the air conditioner host is in a low load operation state during heating operation, the outer heat exchanger has redundant capacity, and the redundant capacity can still be utilized by the water heater evaporator through the vertical fin heat bridge to increase the evaporation temperature and evaporation pressure of the water heater evaporator;

[0115] ③ If the air conditioner host is in a stop operation state, the fins on the L-shaped outer heat exchanger fin plate group 601 of the middle layer and the outer layer near the water heater evaporator pipeline act as vertical extensions of the evaporator fins, expanding the effective heat absorption area of the evaporator, reducing the heat transfer temperature difference of the evaporator itself under certain heat absorption power and certain environmental temperature and humidity conditions, and increasing the evaporation temperature and evaporation pressure of the evaporator.

[0116] The water heater evaporator of the embodiment utilizes the redundant capacity of the air conditioner host outer heat exchanger through the fin heat bridge effect, and the technical effect is concentrated in the increase of the evaporation temperature and evaporation pressure of the water heater evaporator.

[0117] Among them, the evaporation pressure is the first factor of the heat pump system, which affects the performance of the heat pump system as follows Figure 11 As shown in the figure (the vertical coordinate is the condensation pressure, and the horizontal coordinate is the enthalpy value, and in the figure, 1-2-3-4 is the original cycle path, and 1-2-3 ， -4 ， is the present cycle path):

[0118] (1) The increase of evaporation pressure (P1→P1 ， ) directly leads to the increase of the heat absorption amount of unit mass of refrigerant of the air energy water heater (h4 ， -h4), the reduction of the compressor compression work (h4 ， -h4), and the improvement of the energy efficiency ratio;

[0119] (2) The increase of evaporation pressure (P1→P1 ， ) also directly leads to the increase of the refrigerant circulation amount of the fixed frequency heat pump system by about (P1 ， / P1-1) × 100%, and the increase of the condenser heating power by about (P1 ， / P1-1) × 100%;

[0120] (3) The increase of evaporation pressure also directly leads to the reduction of compression ratio and the reduction of compressor discharge temperature, effectively inhibiting the deterioration of lubricating oil and the degradation of compressor motor insulation performance.

[0121] The embodiment is based on the complementary structure and combined air path of the outdoor heat exchanger of the air conditioner host and the evaporator of the air energy water heater. The redundant capacity of the outdoor heat exchanger of the household central air conditioner host and the variable frequency fan is explored. The part of the heat exchange redundant capacity of the outdoor heat exchanger of the central air conditioner host is converted into the heat absorption capacity of the evaporator of the air source water heater through the vertical fin heat bridge. The part of the redundant capacity of the fan 5 (the variable frequency fan of the outdoor heat exchanger of the air conditioner host) of the air conditioner air energy water heater host is converted into the power of the air energy water heater host evaporator air path to replace the special fan of the water heater evaporator. The fan component resources are saved, and the energy efficiency of the air energy water heater host is improved.

[0122] Similarly, the embodiment is based on the complementary structure and combined air path of the outdoor heat exchanger of the air conditioner host and the evaporator of the air energy water heater. The redundant capacity of the air energy water heater evaporator in the shutdown state is also explored. The heat exchange redundant capacity of the water heater evaporator is converted into the heat absorption and release capacity of the outdoor heat exchanger of the central air conditioner host through the vertical fin heat bridge. The comprehensive energy efficiency of the air conditioner host is improved.

[0123] Embodiment two

[0124] Referring to Figure 11 and Figure 12 , the embodiment adjusts the specific arrangement form of the L-shaped air conditioner air energy water heater host fusion body outdoor heat exchanger based on the above-mentioned embodiment one, as follows:

[0125] The number of the L-shaped outdoor heat exchanger fin plate group 601 is three, which are the first L-shaped outdoor heat exchanger fin plate group 608, the second L-shaped outdoor heat exchanger fin plate group 609 and the third L-shaped outdoor heat exchanger fin plate group 610.

[0126] Among them, the first L-shaped outdoor heat exchanger fin plate group 608 is arranged with a plurality of U-shaped refrigerant pipe groups along the vertical direction. Each U-shaped refrigerant pipe group includes a plurality of U-shaped refrigerant pipes 607 arranged along the vertical direction. The U-shaped refrigerant pipes 607 in each U-shaped refrigerant pipe group form an independent air conditioner refrigerant branch through a plurality of communication elbows 603.

[0127] The second L-shaped outdoor heat exchanger fin plate group 609 and the third L-shaped outdoor heat exchanger fin plate group 310 are also arranged with a plurality of U-shaped refrigerant pipe groups along the vertical direction. Each U-shaped refrigerant pipe group includes a plurality of U-shaped refrigerant pipes 607 arranged along the vertical direction.

[0128] In the second L-shaped outdoor heat exchanger fin plate group 609 and the third L-shaped outdoor heat exchanger fin plate group 610, the U-shaped refrigerant pipes 607 in the two parallel U-shaped refrigerant pipe groups are connected to form alternating air conditioner refrigerant fusion branches and air energy water heater fusion branches through a plurality of staggered communication elbows 603.

[0129] The air conditioner refrigerant independent branch and the air conditioner refrigerant fusion branch are connected in series to form an air conditioner refrigerant series branch, and the air conditioner refrigerant series branches are connected in parallel to form the air conditioner refrigerant pipeline system.

[0130] Further, the first L-shaped outer heat exchanger fin plate group 608 can be divided into an upper layer and a lower layer, the U-shaped refrigerant pipe group in the upper layer and the air conditioner refrigerant independent branch formed by the communication elbow 603 form an upper air conditioner refrigerant independent branch 611, and the U-shaped refrigerant pipe group in the lower layer and the air conditioner refrigerant independent branch formed by the communication elbow 603 form a lower air conditioner refrigerant independent branch 612. The second L-shaped outer heat exchanger fin plate group 609 and the third L-shaped outer heat exchanger fin plate group 610 can also be divided into an upper layer and a lower layer, the U-shaped refrigerant pipe group in the upper layer and the air conditioner refrigerant independent branch formed by the communication elbow 603 form an upper air conditioner refrigerant fusion branch 613, and the U-shaped refrigerant pipe group in the lower layer and the air conditioner refrigerant independent branch formed by the communication elbow 603 form a lower air conditioner refrigerant fusion branch 614.

[0131] The corresponding upper air conditioner refrigerant independent branch 611 in the horizontal direction can be connected with the upper air conditioner refrigerant fusion branch 613 in parallel to form an upper refrigerant branch 615, and the corresponding lower air conditioner refrigerant independent branch 612 can be connected with the lower air conditioner refrigerant fusion branch 614 in parallel to form a lower refrigerant branch 616. The upper refrigerant branches 615 and the lower refrigerant branches 616 are connected in parallel to form the air conditioner outer heat exchanger refrigerant pipeline system 604. The difference between the present embodiment and the above-mentioned embodiment one is that the air conditioner main machine outer heat exchanger occupying the air conditioner air energy water heater main machine fusion body outer heat exchanger 2 / 3 copper pipe fin resources is reorganized under the condition that the total amount of copper pipe fin resources remains unchanged. The inner side branch of the L-shaped outer heat exchanger fin plate group 601 in the first embodiment is divided into two sections, the middle and outer side branch is divided into two sections, the upper section of the inner side branch and the upper section of the middle and outer side branch are reorganized into one branch, and the lower section of the inner side branch and the lower section of the middle and outer side branch are reorganized into another branch.

[0132] The embodiment has all the advantages of embodiment one, and because the upper section of the inner side branch and the upper section of the middle outer side branch in the L-shaped outer heat exchanger fin plate group fusion body 6 are reorganized into one branch, and the lower section of the inner side branch and the lower section of the middle outer side branch are reorganized into another branch, the copper pipe fin resource occupancy of the two reorganized branches does not change, but the new two branches have the ability to seize the same copper pipe fin heat exchange area of the air source water heater evaporator through the fin heat bridge effect, and both operate in countercurrent with the ventilation airflow, so that the heat exchange capacity of the two new branches of the air conditioner outer heat exchanger is more symmetrical and more balanced.

[0133] Embodiment three

[0134] Referring to Figure 14 , the embodiment is based on the above-mentioned embodiment one, and provides an L-shaped outer heat exchanger structure complementary air path merging air conditioner water heater main machine fusion body. The structure of the air conditioner air energy water heater main machine fusion body outer heat exchanger is adjusted, and the specific adjustment is as follows:

[0135] The number of L-shaped outer heat exchanger fin plate groups 601 can be two. Each L-shaped outer heat exchanger fin plate group 601 is vertically arranged with a plurality of refrigerant pipe groups, and each U-shaped refrigerant pipe group includes a plurality of U-shaped refrigerant pipes 607 and air energy water heater refrigerant pipes arranged alternately in sequence in the vertical direction (from top to bottom, one U-shaped refrigerant pipe 607, one air energy water heater refrigerant pipe, one U-shaped refrigerant pipe 607... arrangement).

[0136] Among them, the U-shaped refrigerant pipes 607 in the two U-shaped refrigerant pipe groups parallel in the two L-shaped outer heat exchanger fin plate groups 601 are connected by a plurality of communication elbows 603 to form an air conditioner refrigerant branch 617. The air energy water heater refrigerant pipes in the two U-shaped refrigerant pipe groups parallel in the two outer heat exchanger fin plate groups are connected by a plurality of communication elbows 603 to form an air energy water heater branch.

[0137] Each air conditioner refrigerant branch in the two outer heat exchanger fin plate groups can be connected in parallel to form an air conditioner refrigerant outer heat exchanger pipe system. Similarly, each air energy water heater branch can be connected in parallel to form an air energy water heater refrigerant outer heat exchanger pipe system. (Reflecting to the combination of the two L-shaped outer heat exchanger fin plate groups 601, one set of air energy water heater refrigerant outer heat exchanger pipe system is arranged between every two sets of air conditioner refrigerant outer heat exchanger pipe systems, realizing that the air conditioner main machine outer heat exchanger occupies two-thirds of the fin resources, and the water heater evaporator occupies one-third of the fin resources)

[0138] The embodiment has all the advantages of embodiment one, and because the structure of the inner and outer two-row L-shaped outer heat exchanger fin plate group 601 is adopted instead of the three-row tube structure in embodiments one / two, the ventilation area of the air conditioner air energy water heater main body fusion body outer heat exchanger is larger, the ventilation speed is lower, and the ventilation resistance is smaller; whether in the scene of air conditioner independent operation or air energy water heater independent operation, all fin resources of the fusion body are used, and the utilization rate of the fin is higher; for the C-shaped and L-shaped outer heat exchanger modules reassembled by bending and forming the flat plate type finned tube heat exchanger, it has universality.

[0139] Embodiment four

[0140] Referring to Figure 15 , on the basis of the above-mentioned embodiment one or embodiment two or embodiment three, the air conditioner water heater main body fusion body with L-shaped outer heat exchanger structure complementary air path merging is further improved, and the air conditioner water heater main body fusion body of the embodiment can further include an intermediate heat exchanger 14.

[0141] The intermediate heat exchanger 14 is arranged in the air conditioner air energy water heater outer heat exchanger negative pressure cavity, and two heat exchange medium channels of the intermediate heat exchanger 14 are respectively communicated with an air conditioner refrigerant circulating loop and an inner heat exchanger refrigerant pipeline 9 of a building interior air conditioner indoor unit. The inner heat exchanger refrigerant pipeline 9 can be an air conditioner water circulating loop (which can be an indoor fan coil, and the refrigerant therein can be water or other medium). The air conditioner main body produces cold and hot water through the intermediate heat exchanger 14 to input the fan coil installed in the indoor space to meet the refrigeration and heating demand in the building. In summer, the air conditioner main body produces cold water through the intermediate heat exchanger 14 to input the indoor fan coil to absorb the heat in the indoor space to realize refrigeration; in winter, the air conditioner main body produces hot water through the intermediate heat exchanger 14 to input the indoor fan coil to heat the indoor space air to realize heating.

[0142] Among them, the intermediate heat exchanger 14 can be a plate heat exchanger, a double-pipe heat exchanger, or a shell-and-tube heat exchanger, which is not specifically limited here.

[0143] Because the intermediate heat exchanger 14 is arranged in the air conditioner water heater main body to output air conditioner cold and hot water to the indoor fan coil to realize summer refrigeration and winter heating, the air conditioner refrigerant circulating loop is limited to the inside of the air conditioner water heater main body, the length is greatly shortened, and the risk of refrigerant leakage is greatly reduced; because the air conditioner refrigerant circulating loop is limited to the air conditioner water heater main body on the outdoor equipment platform and no longer enters the indoor space, the risk of indoor refrigerant leakage and explosion is eliminated, which provides a realistic possibility for the application and promotion of flammable refrigerants such as R290 and R32.

[0144] The embodiments of the present application are explained in detail above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments. Even if various changes are made to the present application, if the changes fall within the scope of the claims of the present application and equivalents thereof, they are still within the protective scope of the present application.

Claims

1. An L-shaped external heat exchanger structure complementary air path merging air conditioner water heater main machine fusion body, characterized in that, Comprise: Air conditioner air energy water heater main machine fusion body shell; L type air conditioner air energy water heater main machine fusion body outer heat exchanger, which is arranged in the air conditioner air energy water heater main machine fusion body shell and forms an air conditioner air energy water heater outer heat exchanger negative pressure cavity with at least part of the air conditioner air energy water heater main machine fusion body shell, which communicates with the L type air conditioner air energy water heater main machine fusion body outer heat exchanger heat exchange air path; wherein, The L type air conditioner air energy water heater main machine fusion body outer heat exchanger comprises at least one L type outer heat exchanger fin plate group fusion body; the L type outer heat exchanger fin plate group fusion body comprises an air conditioner outer heat exchanger refrigerant pipeline system, an air energy water heater outer heat exchanger refrigerant pipeline system and at least two L type outer heat exchanger fin plate groups arranged side by side from inside to outside, and the air conditioner outer heat exchanger refrigerant pipeline system and the air energy water heater outer heat exchanger refrigerant pipeline system are respectively arranged in each L type outer heat exchanger fin plate group in multiple times alternately; At least one air conditioner air energy water heater main machine fusion body fan is installed on the side of the air conditioner air energy water heater combination body shell and communicates with the air conditioner air energy water heater outer heat exchanger negative pressure cavity; An air conditioner compressor is arranged in the air conditioner air energy water heater main machine fusion body shell, is used for connecting the air conditioner outer heat exchanger refrigerant pipeline system and an external air conditioner inner heat exchanger refrigerant pipeline to form at least one set of air conditioner refrigerant circulating loop, and serves as an air conditioner system refrigerant circulating power; An air energy water heater compressor is arranged in the air conditioner air energy water heater main machine fusion body shell, is used for connecting the air energy water heater outer heat exchanger refrigerant pipeline system and a heat exchanger refrigerant pipeline in an external air energy water heater water tank to form at least one set of air energy water heater refrigerant circulating loop, and serves as an air energy water heater refrigerant circulating power; The L type air conditioner air energy water heater main machine fusion body outer heat exchanger further comprises a separate L type outer heat exchanger fin plate group, which is arranged side by side on the outside or the inside of the L type outer heat exchanger fin plate group fusion body; the separate L type outer heat exchanger fin plate group is arranged with an air conditioner outer heat exchanger refrigerant independent pipeline system, which is used for being connected in parallel to the air conditioner outer heat exchanger refrigerant pipeline system; The air conditioner air energy water heater main machine fusion body fan is a axial flow fan.

2. The L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main unit fusion body of claim 1, wherein, Further comprising a partition plate; The partition plate is installed and separates the inner cavity of the air conditioner air energy water heater main machine fusion body shell into an outer heat exchanger space and an equipment installation space; The L type air conditioner air energy water heater main machine fusion body outer heat exchanger is arranged in the outer heat exchanger space and cooperates to form the air conditioner air energy water heater outer heat exchanger negative pressure cavity; the air energy water heater compressor is installed in the air conditioner air energy water heater outer heat exchanger negative pressure cavity and is located on the side close to the partition plate; The air conditioner compressor is arranged in the equipment installation space.

3. The L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main unit fusion body of claim 2, wherein, Further comprising an air conditioner main machine four-way valve, an air conditioner main machine expansion valve, an air energy water heater four-way valve, an air energy water heater expansion valve and an electrical box arranged in the air conditioner air energy water heater outer heat exchanger negative pressure cavity and / or above the air energy water heater compressor in the equipment installation space; The air conditioner host four-way valve and the air conditioner host expansion valve are arranged on the air conditioner refrigerant circulating loop; The air energy water heater four-way valve and the air energy water heater expansion valve are arranged on the air energy water heater refrigerant circulating loop.

4. The L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main unit fusion body of claim 1, wherein, The number of the L-shaped outer heat exchanger fin plate groups is two; Each of the L-shaped outer heat exchanger fin plate groups is vertically arranged with a plurality of U-shaped refrigerant pipe groups, and each of the U-shaped refrigerant pipe groups includes a plurality of U-shaped refrigerant pipes arranged vertically; The U-shaped refrigerant pipes in the two U-shaped refrigerant pipe groups arranged side by side in the two L-shaped outer heat exchanger fin plate groups are connected by a plurality of staggered communication bends to form air conditioner refrigerant branch circuits and air energy water heater branch circuits alternately arranged; The air conditioner refrigerant branch circuits in the two L-shaped outer heat exchanger fin plate groups are connected in parallel to form the air conditioner outer heat exchanger refrigerant pipe system, and the air energy water heater branch circuits are connected in parallel to form the air energy water heater outer heat exchanger refrigerant pipe system.

5. The L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main unit fusion body of claim 1, wherein, The number of the L-shaped outer heat exchanger fin plate groups is three, which are a first L-shaped outer heat exchanger fin plate group, a second L-shaped outer heat exchanger fin plate group and a third L-shaped outer heat exchanger fin plate group; The first L-shaped outer heat exchanger fin plate group is vertically arranged with a plurality of U-shaped refrigerant pipe groups, and each of the U-shaped refrigerant pipe groups includes a plurality of U-shaped refrigerant pipes arranged vertically; the U-shaped refrigerant pipes in each of the U-shaped refrigerant pipe groups are connected by a plurality of communication bends to form air conditioner refrigerant independent branch circuits; The second L-shaped outer heat exchanger fin plate group and the third L-shaped outer heat exchanger fin plate group are each vertically arranged with a plurality of U-shaped refrigerant pipe groups, and each of the U-shaped refrigerant pipe groups includes a plurality of U-shaped refrigerant pipes arranged vertically; The U-shaped refrigerant pipes in the two U-shaped refrigerant pipe groups arranged side by side in the second L-shaped outer heat exchanger fin plate group and the third L-shaped outer heat exchanger fin plate group are connected by a plurality of staggered communication bends to form air conditioner refrigerant fusion branch circuits and air energy water heater fusion branch circuits alternately arranged; Among them, the air conditioner refrigerant independent branch circuits and the air conditioner refrigerant fusion branch circuits arranged side by side are connected in series to form air conditioner refrigerant series branch circuits, and the air conditioner refrigerant series branch circuits are connected in parallel to form the air conditioner outer heat exchanger refrigerant pipe system; and the air energy water heater fusion branch circuits are connected in parallel to form the air energy water heater outer heat exchanger refrigerant pipe system.

6. The L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main unit fusion body of claim 1, wherein, The number of the L-shaped outer heat exchanger fin plate groups is two; Each of the L-shaped outer heat exchanger fin plate groups is vertically arranged with a plurality of U-shaped refrigerant pipe groups, and each of the U-shaped refrigerant pipe groups includes a plurality of U-shaped refrigerant pipes and air energy water heater refrigerant pipes arranged vertically alternately; The U-shaped refrigerant pipes in the two U-shaped refrigerant pipe groups arranged side by side in the two L-shaped outer heat exchanger fin plate groups are connected by a plurality of communication bends to form air conditioner refrigerant branch circuits; The air energy water heater refrigerant pipes in the two U-shaped refrigerant pipe groups parallel to each other in the two L-shaped outer heat exchanger fin plate groups are connected by a plurality of communication elbows to form air energy water heater branches; Each air conditioner refrigerant branch is connected in parallel to form the air conditioner outer heat exchanger refrigerant pipe system; each air energy water heater branch is connected in parallel to form the air energy water heater outer heat exchanger refrigerant pipe system.

7. The L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main unit fusion body of claim 2, wherein, The shape of the air conditioner air energy water heater main machine fusion body shell is a hexahedron. The side of the air conditioner air energy water heater main machine fusion body shell facing the inside of the external equipment platform is an inside air inlet face; the side of the air conditioner air energy water heater main machine fusion body shell facing the outside of the external equipment platform is an air outlet face for installing the air conditioner air energy water heater main machine fusion body fan; the two sides between the inside air inlet face and the air outlet face are respectively a lateral air inlet face and a side plate face. The inside air inlet face, the lateral air inlet face, the air outlet face, and the partition plate cooperate to form the outer heat exchanger space; the partition plate and the side plate face cooperate to form the equipment installation space.

8. The L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main unit fusion body of claim 1, wherein, The number of the air conditioner air energy water heater main machine fusion body fan is one or two or three. The air conditioner air energy water heater main machine fusion body fan is installed along the vertical direction on the side of the air conditioner air energy water heater assembly body shell facing the outside of the equipment platform.

9. The L-shaped outer heat exchanger structure complementary air path combined air conditioner water heater main unit fusion body of claim 1, wherein, It also includes an intermediate heat exchanger. The intermediate heat exchanger is one of a double-pipe heat exchanger, a plate heat exchanger, and a shell-and-tube heat exchanger. The two heat exchange medium channels of the intermediate heat exchanger are respectively connected to the air conditioner refrigerant circulation loop and the inner heat exchanger refrigerant pipe of the building internal air conditioner, and the inner heat exchanger refrigerant pipe is an air conditioner water circulation loop.

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