Fresh air conditioner

Abstract

The invention belongs to the technical field of air conditioners, and particularly relates to a fresh air conditioner which comprises an outer shell, a heat exchange core and a compressor unit, and a mounting inner cavity is formed in the outer shell; a longitudinal partition arranged longitudinally and a transverse partition perpendicular to the longitudinal partition are arranged in the installation inner cavity, the compressor unit comprises a compressor and a refrigerant pipe set which are installed in the outdoor exhaust area, the compressor is fixed to the bottom of the installation inner cavity through a vibration reduction supporting set, and the transverse partition is located between the indoor air supply outlet and the compressor; the compressor and the indoor air supply outlet are separated through the transverse partition, noise generated when the compressor works is reduced under the action of the transverse partition, the noise transmitted from the indoor air supply outlet to the indoor space is reduced, and refrigerant pipe sets output by the compressor are arranged in the outdoor air exhaust area in a concentrated mode. The problem that the peripheral side of the refrigerant pipe set is poor in sealing performance due to the fact that the refrigerant pipe set penetrates through the transverse partition is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a fresh air air conditioner. Background Art

[0002] In recent years, people have higher and higher requirements for the quality of life, but environmental problems have become increasingly serious. Therefore, the capacity of the air purification market has developed rapidly in recent years, and the air-conditioning systems used to adjust indoor air temperature and air quality have also been continuously updated and improved. Compared with traditional air conditioners, fresh air air conditioners can provide better air quality. They combine air purification functions with dehumidification and humidification functions, providing a better user experience.

[0003] The compressor is the heart of the air conditioner's refrigeration system. As a power component, the compressor will generate vibration noise. The compressor is connected to the indoor side of the air conditioner, which will cause the noise source of the compressor to be directly transmitted to the indoor room, affecting the user's life and leading to a bad user experience. In addition, the refrigerant pipeline connected to the compressor runs through the inside of the air conditioner, which makes the connection between the indoor and outdoor sides less sealed, and the mutual airflow leads to poor heat exchange and affects the sound insulation effect. Summary of the invention

[0004] The purpose of the present invention is to provide a fresh air air conditioner to solve the problems existing in the prior art, such as excessive noise during operation of the compressor, noise transmitted indoors affecting the quality of life of users, and refrigerant pipelines running through the indoor and outdoor sides causing poor heat exchange effect of the air conditioner.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: The present application proposes a fresh air air conditioner, which comprises: An outer shell having an installation cavity formed therein; the outer shell having an outdoor air inlet, an outdoor air outlet, an indoor air supply outlet and an indoor air return outlet; A longitudinal partition, which is longitudinally arranged in the installation inner cavity, with two ends of the longitudinal partition extending to opposite sides of the outer shell respectively, and one end of the longitudinal partition connected to between the outdoor air inlet and the outdoor air outlet, and the other end connected to between the indoor air supply outlet and the indoor air return outlet; A transverse partition is vertically arranged on one side of the longitudinal partition; two sides of the transverse partition respectively form an indoor air supply area connected to the indoor air supply port and an outdoor air exhaust area connected to the outdoor air exhaust port; A heat exchange core, which is arranged in the installation inner cavity and located on the other side of the longitudinal baffle; A compressor unit, comprising a compressor and a refrigerant pipe group installed in the outdoor exhaust area, wherein the compressor is fixed to the bottom of the installation inner cavity through a vibration-damping support group, and the compressor unit is located on the side of the transverse partition away from the indoor air supply outlet, and the transverse partition is used to separate the compressor unit from the indoor air supply outlet, so that a soundproof cavity is formed between the transverse partition and the indoor air supply outlet.

[0006] Compared with the prior art, the advantages and positive effects of the present invention are: The fresh air air conditioner involved in the present application, the longitudinal partition, the transverse partition and the outer shell divide the installation cavity into different areas connected to the outdoor exhaust port and the indoor air supply port, namely the outdoor exhaust area and the indoor air supply area; the transverse partition is arranged between the indoor air supply port and the compressor to separate the compressor from the indoor air supply port. The noise generated by the operation of the compressor is reduced under the action of the transverse partition, so that the noise transmitted from the indoor air supply port to the indoor is reduced, thereby improving the user experience.

[0007] The transverse baffle is arranged on one side of the compressor so that the refrigerant pipe group output by the compressor is concentrated in the outdoor exhaust area, avoiding problems such as poor sealing of the surrounding side of the refrigerant pipe group caused by the refrigerant pipe group passing through the transverse baffle.

[0008] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0010] Figure 1 This is one of the schematic diagrams of the internal structure of the fresh air air conditioner according to the embodiment; Figure 2 This is a second schematic diagram of the internal structure of the fresh air air conditioner according to the embodiment; Figure 3 A schematic diagram of the compressor and the cover body being disassembled according to an embodiment; Figure 4 is a schematic diagram of a cover structure according to an embodiment; Figure 5 It is a schematic diagram of separating the cover body and the noise reduction layer according to the embodiment; Figure 6 It is a schematic diagram of the disassembly of the vibration reduction support group according to the embodiment; Figure 7 is a schematic structural diagram of a first support base according to an embodiment; Figure 8 is a schematic diagram of the support profile position according to an embodiment; Fig. 9 This is the installation diagram of the heat exchanger group and the water tray; Fig.10 1. It is a schematic diagram of the structure of the water receiving tray; Fig.11 Schematic diagram of the relative position of the vibration reduction support group and the water receiving tray; Fig.12 is a schematic diagram of the installation path of the first refrigerant pipe and the second refrigerant pipe; Fig.13 1. It is a schematic diagram of the splitting of the first refrigerant pipe and the first branch pipe, the second refrigerant pipe and the second branch pipe; Fig.14 is a schematic diagram of the positions of the inspection opening and the inner inspection opening according to an embodiment; Fig.15 It is a connection diagram of the exhaust heat exchanger, the inlet heat exchanger and the auxiliary heat exchanger; Fig.16 It is a schematic diagram of the disassembly of the first connecting member, the second connecting member and the first fixing member; Fig.17 It is a schematic diagram of the inspection port location; Fig.18 A schematic diagram of disassembling the inspection cover according to the embodiment; Fig.19 It is a schematic diagram of heat exchange core installation; Fig. 20 is a schematic diagram of the support assembly; Fig.21 It is a schematic diagram of the splitting of the fixed support; Fig. 22 It is a schematic diagram of the disassembly of the movable support; Fig.23 1. It is a schematic diagram of the disassembly state of the detachable bracket; Fig.24 It is a schematic diagram of the location of the bridge components; Fig.25 It is a schematic diagram of the bridge assembly structure; Fig.26 This is a schematic diagram of the disassembly of the bridge assembly; Fig. 27 It is a schematic diagram of the disassembly of the outer shell, the horizontal support frame and the vertical frame according to the embodiment; Fig.28 A schematic diagram of disassembling a blocking member and a stand according to an embodiment; Fig.29 This is one of the schematic diagrams of the stand structure according to the embodiment; Fig.30 This is the second schematic diagram of the stand structure; Fig.31 1. It is a schematic diagram of the structure of the plugging piece; Fig.32 It is a schematic diagram of disassembling the foaming part, the wire-passing part and the outer shell according to the embodiment; Fig.33 is a schematic diagram of the structure of a wire-passing member according to an embodiment; Fig.34 is a schematic diagram of the planar structure of a fresh air air conditioner according to an embodiment; Fig.35 for Fig.34 AA section view in; Fig.36 for Fig.35 The enlarged schematic diagram of point B in FIG. Implementation

[0011] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0012] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0013] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0014] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0015] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0016] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0017] The fresh air air conditioner provided in this embodiment performs a cooling and heating cycle of the air conditioner by using a compressor 500, a condenser, an expansion valve and an evaporator. The cooling and heating cycle includes a series of processes involving compression, condensation, expansion and evaporation, and supplies a refrigerant medium to the conditioned and heat-exchanged air.

[0018] The air conditioner in the present application performs a refrigeration cycle of the air conditioner by using a compressor 500, a condenser, an expansion valve and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation to cool or heat the indoor space.

[0019] The low-temperature and low-pressure refrigerant enters the compressor 500, which compresses it into a high-temperature and high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0020] The expansion valve expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor 500. The evaporator can achieve a refrigeration effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the entire cycle, the air conditioner can adjust the temperature of the indoor space.

[0021] The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including the compressor 500 and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

[0022] The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger functions as a condenser, the air conditioner functions as a heater in a heating mode, and when the indoor heat exchanger functions as an evaporator, the air conditioner functions as a cooler in a cooling mode.

[0023] The way in which the air inlet heat exchanger 300 and the air exhaust heat exchanger 400 are switched to function as a condenser or an evaporator generally uses a four-way valve. For details, please refer to the settings of conventional air conditioners and will not be described in detail here.

[0024] The refrigeration working principle of the air conditioner is: the compressor 500 works to make the air inlet heat exchanger 300 (in the air inlet channel, it is the evaporator at this time) in an ultra-low pressure state, and the liquid refrigerant in the air inlet heat exchanger 300 evaporates rapidly to absorb heat, and the wind blown out by the indoor fan is cooled by the coil of the air inlet heat exchanger 300 and becomes cold air blown into the room. The evaporated refrigerant is pressurized by the compressor 500 and condensed into liquid under the high pressure environment of the exhaust heat exchanger 400 (in the exhaust channel, it is the condenser at this time), releasing heat, and dissipating the heat into the atmosphere through the exhaust fan 700. Such a cycle achieves the refrigeration effect.

[0025] The heating working principle of the air conditioner is as follows: the gaseous refrigerant is pressurized by the compressor 500, becomes a high-temperature and high-pressure gas, enters the air inlet heat exchanger 300 (the condenser at this time), condenses and liquefies to release heat, becomes a liquid, and heats the indoor air at the same time, thereby achieving the purpose of increasing the indoor temperature. The liquid refrigerant is decompressed by the throttling device and enters the exhaust air heat exchanger 400 (the evaporator at this time), evaporates and absorbs heat to become a gas, and at the same time absorbs heat from the outdoor air (the outdoor air becomes colder), becomes a gaseous refrigerant, and enters the compressor 500 again to start the next cycle.

[0026] refer to Figure 1 , Figure 2 The fresh air air conditioner involved in the present application includes an outer shell 100, which includes an upper cover plate (not shown), a lower cover plate 110 and a peripheral side plate 120 located between the upper cover plate and the lower cover plate 110. The upper cover plate is used to connect to the roof of the building to hang the fresh air air conditioner as a whole in the building. The lower cover plate 110 is located below the fresh air air conditioner, and an inspection port is set on the lower cover plate 110 to facilitate maintenance by operators.

[0027] An outdoor air inlet 101, an outdoor air outlet 102, an indoor air supply outlet 103 and an indoor air return outlet 104 are formed on the surrounding side plate 120; an air supply channel is formed between the outdoor air inlet 101 and the indoor air supply outlet 103, and an exhaust channel is formed between the indoor return air outlet 104 and the outdoor air outlet 102.

[0028] The upper cover plate, the lower cover plate 110 and the peripheral side plate 120 are arranged to form an installation inner cavity, and a longitudinal partition block extending longitudinally is arranged in the installation inner cavity, and two ends of the longitudinal partition block extend to the inner side of the peripheral side plate 120 respectively.

[0029] A transverse baffle 820 is disposed on one side of the longitudinal baffle, and a heat exchange core 200 is disposed on the other side.

[0030] The compressor 500 is installed in the outer shell 100 , and the horizontal baffle 820 is located between the compressor 500 and the indoor air supply port 103 .

[0031] One end of the transverse baffle 820 is rigidly connected and fixed to the longitudinal baffle, and the other end is flexibly connected to the inner wall of the peripheral side plate 120 via a buffer. The buffer plays a vibration reduction role to prevent the vibration of the compressor from being transmitted to the outer shell 100, thereby avoiding the problem of low-frequency noise in the outer shell 100.

[0032] The transverse partition 820 , the outer shell 100 and the longitudinal partition respectively divide the installation cavity into an indoor air supply area 1031 connected to the indoor air supply port 103 and an outdoor air exhaust area 1021 connected to the outdoor air exhaust port 102 .

[0033] In addition to the buffering and vibration reduction functions, the buffer component also plays a sealing role, so that the sealing effect between the indoor air supply area 1031 and the outdoor air exhaust area 1021 at both ends of the horizontal partition 820 is better.

[0034] The longitudinal partition, the outer shell 100 and the heat exchange core 200 divide the installation cavity into an indoor return air area 1041 connected to the indoor return air port 104 and an outdoor air inlet area 1011 connected to the outdoor air inlet 101 .

[0035] An exhaust fan 700 is installed in the outdoor exhaust area 1021, and an air inlet fan 600 is installed in the indoor air supply area 1031. When the air inlet fan 600 is turned on, it drives the outdoor air flow to be transported to the room through the air inlet channel. When the exhaust fan 700 is started, it drives the indoor air flow to be output to the outside through the exhaust duct.

[0036] The compressor unit includes a compressor 500 and a refrigerant pipe group installed in the outdoor exhaust area. The compressor 500 is fixed to the bottom of the installation cavity through a vibration reduction support group. The compressor 500 is arranged on one side of the transverse partition 820, and the transverse partition 820 separates the compressor 500 from the indoor air supply area 1031, which is beneficial to reduce the transmission of noise generated by the compressor 500 during operation to the indoor room, thereby achieving a noise reduction effect.

[0037] The horizontal partition 820 is used to separate the compressor unit and the indoor air outlet 103, so that a soundproof cavity is formed between the horizontal partition 820 and the indoor air outlet 103. The soundproof cavity can isolate the noise generated during the operation of the compressor unit, reduce the volume of the noise transmitted from the indoor air outlet 103 to the indoor room, and reduce noise.

[0038] In addition, the horizontal partition 820 is set between the compressor 500 and the indoor air supply port 103, and the refrigerant pipe group output by the compressor 500 is concentrated in the outdoor exhaust area 1021, avoiding the problem of poor sealing of the surrounding side of the refrigerant pipe group caused by the refrigerant pipe group passing through the horizontal partition 820.

[0039] The horizontal partition 820 completely separates the indoor air supply area 1031 from the outdoor exhaust area 1021 to prevent air flow from passing between the outdoor exhaust area 1021 and the indoor air supply area 1031 .

[0040] refer to Figure 3-Figure 5 In some embodiments of the present application, in order to further improve the noise reduction effect, a cover body 530 is further provided outside the compressor 500, and the bottom of the cover body 530 and the side where the cover body 530 contacts the transverse baffle 820 are open structures, and the open side of the cover body 530 is directly connected and fixed to the transverse baffle 820, which is conducive to cost saving.

[0041] The cover body 530 is formed by integrally welding sheet metal. Of course, it can also be formed by mechanical connection such as fastening screws. The bottom of the cover body 530 is formed with an outward flange for connection in the installation cavity.

[0042] A noise reduction layer 540 is disposed inside the cover body 530 ; a relief opening is provided on the cover body 530 for the refrigerant pipe group to pass through.

[0043] The noise reduction layer 540 is specifically arranged on the inner surface of the cover body 530 and is adapted to the shape of the cover body 530. The material of the noise reduction layer 540 is sound insulation cotton, felt or other textiles.

[0044] refer to Figure 6 In order to reduce the vibration generated during the operation of the compressor 500, reduce vibration noise, and avoid vibration damage, the compressor 500 involved in the present application is connected to the lower cover plate 110 through a vibration reduction support group 510.

[0045] The vibration reduction support group 510 includes a first support seat 512 and a second support seat 513 which are arranged in sequence from top to bottom. The first support seat 512 and the second support seat 513 are arranged in parallel, and the first support seat 512 is located above the second support seat 513 .

[0046] The first support seat 512 is connected to the side wall of the compressor 500 through the bracket 511. The compressor 500 is horizontal. Two brackets 511 are arranged on the side wall of the compressor 500 at intervals. The two brackets 511 are connected to the first support seat 512 through the first-level vibration reduction parts 5121 arranged at intervals.

[0047] A plurality of secondary vibration damping parts 5131 are disposed between the first support seat 512 and the second support seat 513 . For example, the secondary vibration damping parts 5131 may be disposed on the four corners of the second support seat 513 , but are not limited to being disposed thereon.

[0048] The bottom of the second support seat 513 is connected to the lower cover plate 110 of the installation cavity through fasteners.

[0049] The primary vibration reduction part 5121 and the secondary vibration reduction part 5131 are made of elastic materials such as rubber and damping rubber.

[0050] In some embodiments of the present application, in order to further reduce the up and down bumps and vibrations of the compressor 500 during transportation and the collision with the lower cover plate 110, a first buffer layer 514 is arranged between the first support seat 512 and the second support seat 513, and a second buffer layer 515 is arranged between the second support seat 513 and the lower cover plate 110.

[0051] The first buffer layer 514 and the second buffer layer 515 are made of a rubber material with a certain elasticity. An avoidance portion 5141 is also provided on the first buffer layer 514. The avoidance portion 5141 is a through-hole structure. The position of the avoidance portion 5141 is adapted to the secondary vibration damping portion 5131. During installation, the secondary vibration damping portion 5131 passes through the corresponding avoidance portion 5141 and is connected to the first support seat 512.

[0052] refer to Figure 8 On the lower cover plate 110, a support profile 520 is provided at a position corresponding to the compressor 500. The support profile 520 is a protrusion extending upward and is fixed to the lower cover plate 110 by welding or mechanical connection.

[0053] The vibration-damping support group 510 is fixed on the lower cover plate 110 through the support profile 520. The support profile 520 can play a role in positioning and buffering, which facilitates the positioning and installation of the vibration-damping support group 510, reduces the direct connection between the compressor 500 and the lower cover plate 110, and reduces the impact on the appearance and structural strength of the lower cover plate 110, which is beneficial to improving the installation efficiency and the overall structural strength.

[0054] The shape of the support profile 520 can be L-shaped, U-shaped or hole-shaped. In addition, it can also be other structural forms. A buffer gap is formed between the vibration-damping support group 510 and the lower cover plate 110. The second buffer layer 515 is arranged in the buffer gap. The thickness of the second buffer layer 515 is adapted to the depth of the buffer gap. In the installed state, the second buffer layer 515 is also in contact and connected with the second support seat 513.

[0055] refer to Figure 9-12 The heat exchanger group includes an exhaust heat exchanger 400 and an inlet heat exchanger 300 arranged longitudinally. During operation, condensed water will form on the outer walls of the exhaust heat exchanger 400 and the inlet heat exchanger 300. A water receiving tray 900 is provided below the heat exchanger group to collect the condensed water formed during the operation of the heat exchanger group.

[0056] The connection position between the transverse partition 820 and the longitudinal partition does not exceed the end of the air inlet heat exchanger 400, so that the refrigerant pipe group connecting the air inlet heat exchanger 400 and the compressor 500 does not need to pass through the transverse partition 820 and is directly connected to the end of the air inlet heat exchanger 400.

[0057] Then, the integrity of the transverse partition 820 is stronger, the noise reduction effect between the transverse partition 820 and the indoor air supply port 103 is good, and it is helpful to avoid air flow passing through and improve the sealing performance.

[0058] Specific reference Figure 6 Since condensed water will also form on the outer wall of the compressor 500 during operation, in order to discharge the condensed water in time, a downwardly extending water collecting portion 5122 and a guide portion 5123 connected to the water collecting portion 5122 and open at one end are formed on the first support seat 512 located below the compressor 500. The output end of the guide portion 5123 extends to above the water receiving pan 900, and the condensed water dripping from the outer wall of the compressor 500 is guided into the water receiving pan 900 through the guide portion 5123.

[0059] refer to Figure 7 In some embodiments of the present application, in order to reduce the working noise generated by the compressor 500 when it is working, the first support seat 512 that is in direct contact with the compressor 500 is made to avoid the resonance point of the compressor 500, and the water collecting portion 5122 is designed to be a press-type structure formed on the first support seat 512.

[0060] The connection position between the primary vibration damping part 5121 and the secondary vibration damping part 5131 is located on the peripheral side of the water collecting part 5122 .

[0061] In other embodiments, the bottom of the water collecting portion 5122 is designed with an upwardly protruding silencer 5124, and condensed water is formed around the silencer 5124. The design of the silencer 5124 can make the first-order mode of the first support seat 512 higher than the maximum operating range of the press (15Hz~70Hz), avoiding the resonance point and reducing vibration and silencing.

[0062] The edge of the silencer 5124 is also formed with a guide edge extending in the direction of the guide portion 5123 for facilitating the discharge of condensed water, thereby facilitating the discharge of condensed water from the guide portion 5123 into the water receiving tray 900 .

[0063] With specific reference to 9 and 10, corresponding to the exhaust heat exchanger 400 and the inlet heat exchanger 300 in the heat exchanger group, a downwardly extending water receiving chamber is formed in the water receiving tray 900, and the water receiving chamber is divided into a first water receiving area 901 and a second water receiving area 902 according to a specific position. The first water receiving area 901 is located below the inlet heat exchanger 300, and the second water receiving area 902 is located above the exhaust heat exchanger 400. The bottom height of the first water receiving area 901 is higher than the bottom height of the second water receiving area 902.

[0064] An upward bottom support 903 is formed at the bottom of the first water receiving area 901 and the second water receiving area 902. The bottom support 90 protrudes a certain height from the bottom of the water receiving tray 900 to support the heat exchanger group.

[0065] In order to prevent the airflow between the indoor air supply area 1031 and the outdoor air exhaust area 1021 from mutually circulating through the water receiving pan 900 , a sealing member 910 is further provided between the air inlet heat exchanger 300 and the water receiving pan 900 .

[0066] A drainage channel is formed on the seal 910 for draining condensed water in the first water receiving area 901 into the second water receiving area 902; the width of the seal 910 is adapted to the width of the first water receiving area 901, and the seal 910 seals the indoor air supply area 1031, and the first water receiving area 901 drains condensed water into the second water receiving area 902 through the drainage channel.

[0067] refer to Fig.13 , Fig.14 During the operation of the fresh air air conditioner, the refrigerant system mainly passes through the compressor 500, the heat exchanger group, the four-way valve, the expansion valve, the gas-liquid separator and other components.

[0068] The compressor 500 compresses the low-temperature and low-pressure gaseous refrigerant in the refrigeration system into a high-pressure and high-temperature gaseous refrigerant, which enters the condenser in the heat exchanger group.

[0069] In the condenser, the high-pressure and high-temperature gaseous refrigerant exchanges heat with the external gas, dissipates heat into the air, and the refrigerant liquefies into medium-temperature and high-pressure liquid refrigerant and enters the expansion valve.

[0070] The medium-temperature and high-pressure liquid refrigerant passes through the expansion valve and becomes a low-temperature and low-pressure liquid refrigerant, and enters the evaporator in the heat exchanger group.

[0071] The low-temperature and low-pressure liquid refrigerant absorbs heat in the evaporator and becomes a low-temperature and low-pressure gaseous refrigerant. After being separated and filtered in the gas-liquid separator, the refrigerant flows into the compressor 500 .

[0072] The heat exchanger group is connected to the compressor 500 via a refrigerant pipe group, and the compressor 500 includes an input end and an output end.

[0073] The refrigerant pipe group includes a first refrigerant pipe 550 connected to the input end and a second refrigerant pipe 560 connected to the output end.

[0074] The vibration generated during the operation of the compressor 500 will also be transmitted to the first refrigerant pipe 550 and the second refrigerant pipe 560 , especially the first refrigerant pipe, which is easily affected by the vibration of the compressor 500 during the transportation process.

[0075] In order to reduce the transmission of vibration, the first refrigerant pipe 550 output from the heat exchanger group is connected to the compressor 500 by passing through the middle position of the bottom of the compressor 500, reducing the distance between it and the vibration center of the compressor 500, thereby reducing the vibration torque, which is beneficial to absorb the vibration energy and reduce the vibration.

[0076] In order to avoid interference with the first refrigerant pipe 550 , the second refrigerant pipe 560 is connected to the heat exchanger group after being connected from the compressor 500 through the bottom of either end of the compressor 500 .

[0077] The refrigerant pipe group is formed by connecting multiple sections of pipes. The first refrigerant pipe 550 is connected to the first branch pipe 551, and the second refrigerant pipe 560 is connected to the second branch pipe 561. In order to facilitate connection and processing, the ends of the first branch pipe 551 and the second branch pipe 561 are respectively formed with plug-in parts 570 with openings facing upward. The first refrigerant pipe 550 and the second refrigerant pipe 560 are respectively plugged downward into the first branch pipe 551 and the second branch pipe 561 through the plug-in parts 570, and then welded to the periphery of the connection between the plug-in parts 570 and the first and second refrigerant pipes 550 and 560.

[0078] refer to Fig.15 The heat exchange assembly includes an air inlet heat exchanger 300, an exhaust heat exchanger 400 and an auxiliary heat exchanger 310. The air inlet heat exchanger 300 and the exhaust heat exchanger 400 are fixed in the installation cavity through a heat exchange bracket 800.

[0079] The air inlet heat exchanger 300 and the air exhaust heat exchanger 400 are longitudinally mounted on the heat exchange bracket 800, and both ends of the heat exchange bracket 800 extend to the indoor and outdoor sides of the entire installation cavity. At this time, the heat exchange bracket 800 serves as a longitudinal partition to achieve the purpose of partitioning the installation cavity.

[0080] In the traditional installation process of the heat exchanger group, each heat exchanger is generally fixed separately into the installation cavity. This installation method is limited by the installation space during the installation process, resulting in low installation efficiency and inconvenience for operators.

[0081] In addition, the separate installation of heat exchangers will lead to relatively large installation errors between them. The accumulation of errors will make the subsequent refrigerant pipeline installation inconvenient, and will also form a large installation gap, causing problems such as leakage of indoor and outdoor airflow.

[0082] In order to improve the speed of installation of each heat exchanger and reduce the installation error between heat exchangers, the fresh air heat exchanger proposed in the present application is pre-installed externally before the heat exchanger group is installed in the installation cavity.

[0083] The air inlet heat exchanger 300 and the auxiliary heat exchanger 310 are arranged side by side. The auxiliary heat exchanger 310 is located at the output end of the air inlet heat exchanger 300. Both ends of the air inlet heat exchanger 300 are detachably connected to the auxiliary heat exchanger 310.

[0084] refer to Fig.15 , Fig.16 Specifically, first connecting members 320 are provided at both ends of the air inlet heat exchanger 300, and second connecting members 330 are provided at both ends of the auxiliary heat exchanger 310. At least one first clamping portion 3211 is formed on the first connecting member 320 along its height direction, and a second clamping portion 3311 is formed on the second connecting member 330 to match the position of each first clamping portion 3211. In the installed state, the first clamping portion 3211 and the second clamping portion 3311 are connected.

[0085] Specifically, a first connecting outer edge 321 extending and bending to one side is formed on the first connecting member 320, a second connecting outer edge 331 bent in the same direction as the first connecting outer edge 321 is formed on the second connecting member 330, a first clamping portion 3211 is formed on the first connecting outer edge 321, and a second clamping portion 3311 is formed on the second connecting outer edge 331.

[0086] The first connecting outer edge 321 and the second connecting outer edge 331 located at both ends of the air inlet heat exchanger 300 and the auxiliary heat exchanger 310 may extend in the same direction or in opposite directions.

[0087] That is, the first connection outer edge 321 and the second connection outer edge 331 can both extend toward the heat exchanger and be covered on both sides of the heat exchanger; the first connection outer edge 321 and the second connection outer edge 331 can also both extend away from the heat exchanger; or, the first connection outer edge 321 and the second connection outer edge 331 at one end of the heat exchanger extend toward the heat exchanger, and the first connection outer edge 321 and the second connection outer edge 331 at the other end extend away from the heat exchanger; as long as it is ensured that, during the installation process, the first clamping portion 3211 and the second clamping portion 3311 at the two ends can be clamped with each other, it will be sufficient.

[0088] The first clamping portion 3211 or the second clamping portion 3311 is a buckle protruding from the surface of the first connecting outer edge 321 , and the second clamping portion 3311 or the first clamping portion 3211 is a notch formed on the second connecting outer edge 331 , and the size of the buckle is adapted to the notch.

[0089] The buckle can be a structure with an opening upward, or a structure with an opening downward that is snapped into the notch.

[0090] Taking the first clamping portion 3211 as a buckle structure and the second clamping portion 3311 as a notch structure as an example, the buckle is an example of a structure with the opening direction upward.

[0091] During the installation process, the auxiliary heat exchanger 310 is installed from top to bottom. As the auxiliary heat exchanger 310 moves downward, the second clamping parts 3311 at both ends are clamped on the outside of the first clamping parts 3211, and the buckles are connected to the notches to achieve the connection and fixation of the auxiliary heat exchanger 310 and the air inlet heat exchanger 300.

[0092] A first fixing member 340 is also provided above the first connecting member 320 and the second connecting member 330. The first fixing member 340 is a sheet metal structure, and a first overlapping portion 341 extending downward is formed at both ends of the first fixing member 340. The first overlapping portion 341 is detachably connected to the first connecting member 320 and the second connecting member 330 by fasteners, so as to further fix the air inlet heat exchanger 300 and the auxiliary heat exchanger 310.

[0093] A third connecting member 420 is provided at both ends of the exhaust heat exchanger 400, a second fixing member 430 is provided above the third connecting member 420, and a second overlapping portion extending downward is formed at both ends of the second fixing member 430, and the second overlapping portion is detachably connected to the third connecting member 420 through fasteners.

[0094] The first fixing member 340 and the second fixing member 430 are also used to connect with the heat exchange bracket 800. Specifically, a connecting flange extending in the direction of the air inlet heat exchanger 300 and the exhaust heat exchanger 400 is formed on the heat exchange bracket 800. The flange is located above the first fixing member 340 and the second fixing member 430 to connect and fix the air inlet heat exchanger 300 and the auxiliary heat exchanger 310 to the heat exchange bracket 800.

[0095] In addition, connecting holes are dispersedly formed on the first connecting member 320, the second connecting member 330 and the third connecting member 420. The position of each connecting hole is adapted to the position of the refrigerant pipe in the corresponding air inlet heat exchanger 300, the auxiliary heat exchanger 310 or the exhaust heat exchanger 400. The refrigerant pipeline in each heat exchanger passes through the corresponding connecting hole, so that the connection and fixation between the first connecting member 320 and the air inlet heat exchanger 300, the first connecting member 320 and the auxiliary heat exchanger 310, and the third heat exchanger and the exhaust heat exchanger 400 can be achieved.

[0096] refer to Fig.17 , Fig.18 During operation, if a working component or wiring harness installed in the inner cavity fails and needs to be repaired, it is generally repaired through an inspection port preset on the outer shell 100. In order to facilitate the inspection of the internal working components of the fresh air air conditioner, it is usually necessary to open an inspection port on the outer shell 100 of the corresponding working component, which means that there are many inspection ports, which affects the overall structural strength of the outer shell 100.

[0097] In order to reduce the number of inspection openings and improve the structural strength of the outer shell 100, the fresh air air conditioner involved in the present application has an inspection opening located directly below the heat exchange core 200 and connected to the outdoor air inlet area 1011 and the indoor return air area 1041 on both sides of the heat exchange core 200.

[0098] An inspection cover plate 111 is detachably connected to the inspection opening for closing the inspection opening.

[0099] The inspection port can be used as an inspection window of the heat exchange core 200 and can also be used as an inspection position for some working components in the outdoor air inlet area 1011 and the indoor return air area 1041.

[0100] The heat exchange bracket 800 penetrating the inner cavity is used to fix the air inlet heat exchanger 300 and the exhaust heat exchanger 400. The air inlet heat exchanger 300 and the exhaust heat exchanger 400 are pre-fixed on one side of the heat exchange bracket 800, and the movable support and the fixed support are fixed on the other side of the heat exchange bracket 800.

[0101] The heat exchange bracket 800 serves as the installation base of the heat exchanger group and can also replace the longitudinal partition to partition the installation cavity.

[0102] An internal inspection port is formed on the heat exchange bracket 800, and the internal inspection port is located between the exhaust heat exchanger 400 and the inlet heat exchanger 300. When the heat exchange core 200 is removed from the inspection port, maintenance personnel can also inspect the working parts located on the other side of the heat exchange bracket 800 through the internal inspection port.

[0103] The compressor 500 can be inspected and maintained through the inner inspection port, so the inspection position for inspecting the compressor 500 can be omitted on the lower cover plate 110 .

[0104] Specifically, the inner inspection opening is detachably connected to an inner inspection cover plate 810 , and similar to the lower cover plate 110 , the inner inspection opening and the inner inspection cover plate 810 are detachably connected via fasteners.

[0105] In order to facilitate the operator to disassemble the inner inspection plate, a handle portion bent toward the heat exchange core 200 is formed on the inner inspection plate. When disassembling the inner inspection plate, the operator removes the inner inspection plate through the handle portion.

[0106] A threading portion is formed on the inner inspection cover plate 810, and the threading portion is a threading virtual portion or a threading hole, and a sealing plug is provided on the threading hole.

[0107] Similar to the sealing plug in the wiring hole, the sealing plug on the threading part also forms a through-threading channel. The sealing plug is made of rubber material and has a certain sealing elasticity. Therefore, the wiring harness can pass through the wiring harness channel while ensuring the sealing of the surrounding side of the wiring harness.

[0108] When the threading part is a virtual threading part, the virtual threading part can be knocked down during maintenance, and the wire harness after maintenance is passed through this position. The virtual threading part after knocking down also forms a threading hole structure. In the actual maintenance process, a sealing plug is also provided for it to improve the sealing of the threading part after the wire harness passes through.

[0109] refer to Fig.19 , Fig.29 The heat exchange core 200 is detachably connected and installed in the inner cavity through a supporting assembly. Specifically, its two sides are respectively close to the outdoor air inlet area 1011 and the indoor return air area 1041. The two ends of the heat exchange core 200 are respectively connected to the inner wall of the outer shell 100 and the heat exchange bracket 800.

[0110] The heat exchange bracket 800 is used to fix the exhaust heat exchanger 400 and the intake heat exchanger 300 . The heat exchange bracket 800 runs through the entire installation cavity, and its two ends are respectively connected to the peripheral side plates 120 at the two ends of the outer shell 100 .

[0111] Define the extension direction of the heat exchange bracket 800 as the first direction, then, the support assembly includes a fixed support member 230 and a movable support member 240 relatively arranged along the first direction, the fixed support member 230 and the movable support member 240 are arranged in parallel, and support positions 201 are formed on the fixed support member 230 and the movable support member 240, and both sides of the heat exchange core 200 extend into the support position 201 respectively, and the shape of the support position 201 is adapted to the shape of both sides of the heat exchange core 200.

[0112] In some embodiments of the present application, tapered edges are formed on both sides of the heat exchange core 200, and the corresponding support positions 201 are also opening structures that gradually expand toward the heat exchange core 200. The two sides of the heat exchange core 200 are inserted into the support positions 201 to fix the entire heat exchange core 200.

[0113] The heat exchange core 200 can be a polygonal prism or other shapes, as long as it can achieve the heat exchange function of vertically placing the characteristic cross-section. In addition, simple chamfering operations based on the polygonal prism are within the scope of this application.

[0114] In order to reduce the size of the maintenance port and facilitate disassembly, in some embodiments of the present application, the heat exchange core 200 is designed to include at least two core units arranged along a direction perpendicular to the first direction, and the end faces of the core units are in direct contact to form a heat exchange core 200 as a whole.

[0115] Therefore, the width of the inspection port 131 along the first direction does not need to be designed to be larger than the length of the heat exchange core 200 in this direction. It only needs to ensure that it is not less than the length of any core unit. During actual disassembly, each core unit is disassembled separately, which is conducive to reducing the size of the inspection port 131, improving the structural strength of the outer shell 100, and reducing the difficulty of disassembly.

[0116] refer to Figure 21-23 Since the core unit is removed from the bottom to the outside during disassembly, the fixed support member 230 and the movable support member 240 are correspondingly designed into two upper and lower components, that is, the fixed support member 230 includes an upper fixed bracket 231 and a lower fixed bracket 232, and the movable support member 240 includes an upper movable bracket 241 and a lower movable bracket.

[0117] The upper fixing bracket 231 and the lower fixing bracket 232 are spliced ​​up and down, the upper fixing bracket 231 is formed with an upper flange 270 inclined upward, and the lower fixing bracket 232 is formed with a lower flange 260 inclined downward, and a gradually expanding support position 201 is formed between the upper flange 270 and the lower flange 260.

[0118] An upper flange 270 inclined upward is formed on the upper movable bracket 241 , and a lower flange 260 inclined downward is formed on the lower movable bracket. The support position 201 on the movable support member 240 is located between the upper flange 270 and the lower flange 260 .

[0119] The movable support member 240 needs to be partially dismantled during the actual maintenance process. Specifically, the lower movable bracket is partially dismantled to enable the core unit to be moved downward out of the installation cavity.

[0120] The lower movable bracket includes a detachable bracket 243 and a lower support frame 242. The length of the detachable bracket 243 is not less than the length of any core unit. During maintenance, the detachable bracket 243 is removed from the upper fixed bracket 231. After being taken out from the maintenance port, each core unit can be removed one by one from the assembly and disassembly position formed after the detachable bracket 243 is removed.

[0121] During the actual operation of the fresh air air conditioner, many working parts, such as the electrical box, need to be connected to many wire harnesses. In order to facilitate the connection of the wire harnesses, a through wiring hole 250 is formed on the movable support 240 and / or the fixed support 230, and the wire harness passes up and down through the wiring hole 250. Furthermore, a sealing plug may be provided in the wiring hole 250, and a through wiring channel is formed on the sealing plug. The sealing plug is made of rubber material and has a certain sealing elasticity. Therefore, the wire harness can pass through the wire harness channel while ensuring the sealing of the surrounding side of the wire harness.

[0122] Wire clamps are also arranged on the fixed support member 230 and the movable support member 240. The wire clamps can fix the passing wire harness by means of snap connection or winding fixation, thereby improving the neatness of the wire harness connection.

[0123] The detachable bracket 243 is located at the end away from the heat exchange bracket 800, that is, the end close to the peripheral side plate 120. Taking the heat exchange core 200 including the first core unit 210 and the second core unit 220 as an example, in the actual disassembly process, after the detachable bracket 243 is disassembled, the first core unit 210 away from the heat exchange bracket 800 is first removed from the inspection port 131, and then, the second core unit 220 close to the heat exchange bracket 800 moves outward along the support position 201 to the corresponding position of the first core unit 210, and then is removed from the inspection port 131.

[0124] In this embodiment, according to the actual loading and unloading position of the heat exchange core 200 , the position of the flange 1312 and the position of the protective layer can be set on a side parallel to the heat exchange bracket 800 and away from the inspection port 131 of the heat exchange bracket 800 .

[0125] After the heat exchange core 200 is disassembled, the operator can directly inspect the working parts such as the air valve assembly, the electrical box, etc. in the indoor return air area 1041 and the outdoor air inlet area 1011 located beside the heat exchange core 200 through the inspection port 131.

[0126] refer to Fig.24 Since many working components in the fresh air air conditioner require external wiring harnesses to provide them with signal or power transmission, in order to standardize the layout of the wiring harnesses, in some embodiments of the present application, a bridge assembly 280 for the wiring harness to pass through is also provided between the upper cover plate 110 and the heat exchange core 200.

[0127] Part of the wiring harness in the installation cavity passes through the bridge assembly 280 and is connected to the outside world.

[0128] Both ends of the bridge assembly 280 are connected to the outer shell 100 and the heat exchange bracket 800 respectively. A threading channel is formed on the bridge assembly 280, and the wire harness passes through the threading channel and is connected to the corresponding working component in the installation cavity.

[0129] refer to Fig.25 , Fig.26 Specifically, the bridge assembly 280 includes a detachably connected wire trough support plate 281 and a wire trough cover plate 282, a wire threading channel is formed between the wire trough support plate 281 and the wire trough cover plate 282, and a plurality of wire clips are dispersedly formed in the wire threading channel for fixing the wire harness.

[0130] Since the wire trough support plate 281 located on the lower side needs to be removed during the maintenance process, in order to facilitate disassembly and maintenance and prevent the wiring harness from falling after the wire trough support plate 281 is removed, an intermediate bridge frame 283 is also arranged between the wire trough support plate 281 and the wire trough cover plate 282, and the connection between the bridge frame assembly 280 and the outer shell 100 and the heat exchange bracket 800 is realized through the intermediate bridge frame 283.

[0131] The intermediate bridge 283 includes a bottom plate 2831 in contact with the wire trough support plate 281 and a plurality of vertical plates 2832 formed on both sides of the bottom plate 2831. Notches are formed between adjacent vertical plates 2832 to facilitate the connection of the wire harness from the corresponding notches.

[0132] Two ends of the bottom plate 2831 that are in contact with the outer shell 100 and the heat exchange bracket 800 are respectively formed with connecting flanges 2833 , and the connecting flanges 2833 are detachably connected to the outer shell 100 and the heat exchange bracket 800 by fasteners.

[0133] A plurality of maintenance openings are dispersedly formed on the bottom plate 2831, so that operators can conveniently inspect and repair the wiring harness from below the maintenance openings.

[0134] The wire trough support plate 281 is clamped under the middle bridge frame 283 . Specifically, a plurality of downwardly-extending downwardly-flipping plates 2811 are formed on the wire trough support plate 281 . The downwardly-flipping plates 2811 are clamped on the outer sides of the vertical plates 2832 of the middle bridge frame 283 .

[0135] The wire trough cover 282 is formed with multiple upper flaps 2821 extending downward. Similarly, the upper flaps 2821 are respectively clamped on the outer sides of the vertical plates 2832 of the middle bridge frame 283. Then, the height of the vertical plates 2832 is at least greater than the sum of the heights of the upper flaps 2821 and the lower flaps 2811 to avoid interference between the upper flaps 2821 and the lower flaps 2811.

[0136] Wiring notches 284 are formed between adjacent lower flaps 2811 , which are similar to the wiring notches 284 on the vertical plate 2832 and are used for wiring harnesses to pass through.

[0137] In other embodiments of the present application, the vertical plate 2832 of the intermediate bridge frame 283 is also detachably connected to the wire trough cover plate 282 by fasteners to improve the stability of the connection. In this embodiment, the lower flap 2811 of the wire trough cover plate 282 can be tightly engaged with the intermediate bridge frame 283, or it can be directly tightly engaged with the upper flap 2821 on the wire trough cover plate 282. At this time, the height of the vertical plate 2832 is less than the sum of the heights of the upper flap 2821 and the lower flap 2811, ensuring that the lower flap 2811 can be engaged on the outside of the upper flap 2821.

[0138] In order to prevent the airflow between the outdoor air inlet area 1011 and the indoor return air area 1041 from passing through the bridge assembly 280, a sealing barrier 285 is provided between the middle bridge 283 and the wire trough cover 282. The sealing barrier 285 extends along the length direction of the middle bridge 283 to separate the outdoor air inlet area 1011 and the indoor return air area 1041, thereby improving the sealing effect.

[0139] During the initial installation, after the heat exchange core 200 is installed, the wire trough support plate 281 is placed on the upper surface of the heat exchange core 200, and then the intermediate bridge 283 is placed on the wire trough support plate 281. The lower flap 2811 beside the wire trough support plate 281 is tightly fitted and clamped on the outside of the intermediate bridge 283. The connecting flanges 2833 at both ends of the intermediate bridge 283 are respectively fixed between the heat exchange and the outer shell 100, and then the wiring harness is connected from the middle of the intermediate bridge 283 to the various working parts of the installation inner cavity. After the wiring is completed, the wire trough cover plate 282 is covered on the intermediate bridge 283, and finally, the upper cover plate 110 is covered on the surface.

[0140] During maintenance, after removing the heat exchange core 200, the operator removes the wire trough support plate 281 that is in direct contact with the heat exchange core 200 from the intermediate bridge 283 through the inspection port 131, and then inspects the corresponding wiring harness from the maintenance port of the intermediate bridge 283. During the maintenance process, since part of the wiring harness has fallen out of the threading channel and is difficult to re-connect, the corresponding part of the wiring harness can be connected from the threading part on the heat exchange bracket 800 to the corresponding working part. After completing the wiring harness inspection, the wire trough support plate 281 can be clamped from the bottom of the intermediate bridge 283.

[0141] The design of the bridge assembly 280 not only makes the wiring harness more orderly, but also facilitates maintenance, greatly improving maintenance efficiency. The wiring harness passes through the threading channel, reducing direct contact with the heat exchange core 200, which is beneficial to insulation, increases service life, and greatly improves safety.

[0142] refer to Fig. 27 , Fig.28 The side panel group 120 specifically includes an outdoor end panel 122 , an indoor end panel 121 , a first side panel 124 and a second side panel 123 located between the outdoor end panel 122 and the indoor end panel 121 .

[0143] The outdoor end plate 122 and the indoor end plate 121 are arranged opposite to each other. The outdoor end plate 122 is located on the outdoor side, and the outdoor air inlet 101 and the outdoor air outlet 102 are located on the outdoor end plate 122; the indoor end plate 121 is located on the indoor side, and the indoor air supply outlet 103 and the indoor return air outlet 104 are located on the indoor end plate 121.

[0144] The first side plate 124 is in contact with the end surface of the heat exchange core 200 . In order to improve the overall sealing effect of the outer shell 100 and reduce the installation process, the outdoor end plate 122 , the indoor end plate 121 , and the second side plate 123 are integrally formed with the lower cover plate 130 .

[0145] In some embodiments of the present application, in order to improve the supporting strength of the outer shell 100 for each working component in the installation cavity, a horizontal support frame 1100 and a plurality of vertical frames 1200 are further provided in the installation cavity.

[0146] The horizontal support frame 1100 is a frame structure and can be connected to the inner surface of the lower cover plate 130 by welding.

[0147] The horizontal support frame 1100 is formed by welding or mechanically connecting a plurality of support beams. In order to improve the structural strength, reinforcing trusses may be additionally provided between the support beams. The reinforcing trusses may provide support for the working parts installed in the inner cavity.

[0148] The supporting beams and reinforcing trusses are both made of hollow steel, and their weight is minimized while ensuring structural strength.

[0149] The vertical frame 1200 is arranged on the inner side of the corner of the side plate group 120, and the bottom of the vertical frame 1200 is fixedly connected to the horizontal support frame 1100. For the convenience of processing, the vertical frame 1200 is fixed to the horizontal support frame 1100 by welding, and supports the outer shell 100 together with the horizontal support frame 1100.

[0150] Specifically, there are four frames 1200, which are respectively arranged at the connection between the outdoor end plate 122 and the first side plate 124, the connection between the outdoor end plate 122 and the second side plate 123, the connection between the indoor end plate 121 and the first side plate 124, and the connection between the indoor end plate 121 and the second side plate 123.

[0151] refer to Figure 29-Figure 31 Each upright frame 1200 specifically includes a first upright wall 1210 and a second upright wall 1220 that are perpendicular to each other. The first upright wall 1210 is in contact with and connected to the indoor end plate 121 or the outdoor end plate 122, and the second upright wall 1220 is in contact with and connected to the first side wall or the second side wall.

[0152] A first overlapping edge 1211 and a second overlapping edge 1221 extending inwardly are respectively formed on the first vertical wall 1210 and the second vertical wall 1220 . The first overlapping edge 1211 and the second overlapping edge 1221 are parallel to the first vertical wall 1210 and the second vertical wall 1220 .

[0153] The inner side of the stand 1200 is detachably connected to a blocking member 1300. For details, refer to Fig.33 The blocking piece 1300 is connected to the first overlapping edge 1211 and the second overlapping edge 1221 to block the inner side of the stand 1200 .

[0154] The blocking member 1300 includes two sealing plates 1310 perpendicular to each other. The two sealing plates 1310 are detachably connected to the first overlapping edge 1211 and the second overlapping edge 1221 respectively by fastening screws.

[0155] The blocking member 1300 and the stand 1200 are formed in one piece by bending sheet metal, which reduces assembly steps, improves work efficiency, and also greatly enhances structural strength.

[0156] refer to Fig.32 Since the fresh air air conditioner is mainly hung on the indoor ceiling by a hanging rope, it is necessary to set a hanging member 1600 on the outer shell 100 for connecting the hanging rope.

[0157] The hanging member 1600 in the present application is located on the outdoor end plate 122 and the indoor end plate 121 , and two hanging members 1600 are respectively provided on the outdoor end plate 122 and the indoor end plate 121 .

[0158] Since the hanging part 1600 needs to bear the weight of the entire fresh air air conditioner, the connection strength requirement for the hanging part 1600 is relatively high.

[0159] In order to ensure the connection stability and connection strength of the hanging member 1600, the hanging bracket part is connected and fixed to the stand 1200 at the corresponding position through the outdoor end plate 122 and the indoor end plate 121.

[0160] At least one penetrating connection portion 1230 is respectively formed on each of the upright frames 1200, the outdoor end plate 122 and the indoor end plate 121. The connection portion 1230 is specifically a through-hole structure. The upright frame 1200 specifically connected to the hanging member 1600 is the first upright frame 1200. A nut 1320 is welded on the inner side of the first upright frame 1200. Structures such as fastening screws pass through the connection portion 1230 and are connected to the nut 1320.

[0161] A plurality of connection parts 1230 and nuts 1320 corresponding to the same hanging member 1600 may be provided to improve the stability of the connection.

[0162] When the nut 1320 needs to be repaired, the blocking member 1300 can be disassembled to repair or replace the nut 1320 .

[0163] The hanging component 1600 specifically includes a fixing plate 151 that is in contact with the outdoor end plate 122 or the indoor end plate 121 and a hanging plate 152 that is perpendicular to the fixing plate 151 . The hanging plate 152 is vertically arranged above the fixing plate 151 and is formed integrally with the fixing plate 151 .

[0164] A hanging notch 153 is formed on the hanging plate 152 for connecting a hanging rope. During installation, the hanging rope is fixed at the connecting notch to hang the entire fresh air air conditioner.

[0165] When the fresh air air conditioner is in operation, the lower cover plate 130 on the outer shell 100 is located below the fresh air air conditioner to facilitate maintenance by operators, and a maintenance opening 131 is provided on the lower cover plate 130 .

[0166] After the lower cover plate 130 and the side panel group 120 of the outer shell 100 are connected, the horizontal support frame 1100 is directly connected and fixed to the lower cover plate 130. Each vertical frame 1200 is located on the inner side of the corner of the side panel group 120, and the bottom is connected and fixed to the horizontal support frame 1100, thereby forming a three-dimensional support frame, which is beneficial to improve the structural strength of the entire outer shell 100. The horizontal support frame 1100 can be connected before installation, which improves the installation efficiency, and the structure is stable, safe and reliable.

[0167] In the actual working process, the working components in the outdoor air inlet area 1011 and the indoor air return area 1041 need to transmit signals and electric energy through wiring harnesses.

[0168] The conventional wiring harness connecting the outdoor air inlet area 1011 and the indoor return air area 1041 mainly passes directly between the heat exchange core 200 and the side plate group 120. This connection method easily leads to gaps around the wiring harness, so that the airflow between the outdoor air inlet area 1011 and the indoor return air area 1041 flows through the gap, affecting the working effect of the air conditioner. Furthermore, the wiring harness is in direct contact with the heat exchange core 200 , and friction will be generated between the wiring harness and the heat exchange core 200 , causing wear between the wiring harness and the heat exchange core 200 , thus affecting the lifespan of the wiring harness and the heat exchange core 200 .

[0169] Reference again Fig.32 In some embodiments of the present application, a foam member 1400 is provided between the heat exchange core 200 and the side plate group 120. The foam member 1400 is a foam material having a certain thickness, and has functions such as heat preservation and noise absorption.

[0170] At least one penetrating avoidance portion 1401 is disposed on the foam member 1400 . The avoidance portion 1401 is arranged horizontally or at an angle on the foam member 1400 according to the actual connection direction of the wire harness.

[0171] refer to Fig.33 Each avoidance portion 1401 is correspondingly connected to a wire-passing member 1500 . The wire-passing member 1500 is an integrally formed sheet metal structure, and its cross-sectional shape is similar to a “Z” shape, which is convenient for processing and installation.

[0172] The wire-passing member 1500 specifically includes a wire-passing bottom plate 1510 , and a first contact surface 1511 and a second contact surface 1512 located on both sides of the wire-passing bottom plate 1510 and extending in opposite directions.

[0173] refer to Figure 34-Figure 36 The shape of each wire-passing member 1500 is matched with the shape of the avoidance portion 1401 at the corresponding installation position, and the first contact surface 1511 is connected to the inner wall of the side plate group 120 by welding or mechanical connection such as fastening screws.

[0174] The outer surface of the second contact surface 1512 is flush with the surface of the foaming member 1400, ensuring that the second contact surface 1512 and the outer side of the foaming member 1400 are in the same plane and are both in contact with and connected to the heat exchange core 200, thereby reducing the generation of connection gaps.

[0175] A wire passing channel is formed between the wire passing member 1500 and the side panel group 120 and the foam member 1400. Both ends of the wire passing channel are respectively connected to the outdoor air inlet area 1011 and the indoor return air area 1041 for the wire bundle to pass between the outdoor air inlet area 1011 and the indoor return air area 1041.

[0176] That is, after the first contact surface 1511 of the wire-passing member 1500 is connected to the inner wall of the side plate assembly 120 , each avoidance portion 1401 of the foam member 1400 is aligned with each wire-passing member 1500 .

[0177] The first contact surface 1511 is pressed between the foam part 1400 and the side plate group 120. The wire-passing bottom plate 1510 and the second contact surface 1512 are together with the foam part 1400 and the side plate group 120 to form a wire-passing channel. The wire harness passes through the wire-passing channel to avoid direct contact with the heat exchange core 200.

[0178] In order to further improve the sealing between the outdoor air inlet area 1011 and the indoor air return area 1041, a sealing strip (not shown) is provided in the wire passage.

[0179] The sealing strip can be a structure such as a sealing rubber strip. After the wiring harness passes through the wiring channel, the sealing strip is used to seal other areas in the wiring channel to reduce the airflow between the outdoor air inlet area 1011 and the indoor return air area 1041, thereby improving the sealing effect.

[0180] In addition to protecting the heat exchange core 200 and providing thermal insulation, the foam part 1400 can also provide space for the connection of the wiring harness, thereby preventing the wiring harness from passing directly from the side of the heat exchange core 200 and causing poor sealing between the outdoor air inlet area 1011 and the indoor return air area 1041, and preventing the wiring harness from being directly connected to the side of the heat exchange core 200 and direct contact with the heat exchange core 200, which helps to reduce safety hazards.

[0181] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0182] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A fresh air air conditioner, characterized in that: include: An outer shell having an installation cavity formed therein; the outer shell having an outdoor air inlet, an outdoor air outlet, an indoor air supply outlet and an indoor air return outlet; A longitudinal partition, which is longitudinally arranged in the installation inner cavity, with two ends of the longitudinal partition extending to opposite sides of the outer shell respectively, and one end of the longitudinal partition connected to between the outdoor air inlet and the outdoor air outlet, and the other end connected to between the indoor air supply outlet and the indoor air return outlet; A transverse partition is arranged at an angle on one side of the longitudinal partition; two sides of the transverse partition respectively form an indoor air supply area connected to the indoor air supply port and an outdoor air exhaust area connected to the outdoor air exhaust port; A heat exchange core, which is arranged in the installation inner cavity and located on the other side of the longitudinal baffle; A compressor unit, comprising a compressor and a refrigerant pipe group installed in the outdoor exhaust area, wherein the compressor is fixed to the bottom of the installation inner cavity through a vibration-damping support group, and the compressor unit is located on the side of the transverse partition away from the indoor air supply outlet, and the transverse partition is used to separate the compressor unit from the indoor air supply outlet, so that a soundproof cavity is formed between the transverse partition and the indoor air supply outlet.

2. The fresh air air conditioner according to claim 1, characterized in that: One end of the transverse baffle is fixed on the longitudinal baffle, and the other end is connected to the inner wall of the peripheral side plate through a buffer.

3. The fresh air air conditioner according to claim 1, characterized in that: A cover body is also provided outside the compressor, and a noise reduction layer is also provided inside the cover body. The vibration reduction support group includes a first support seat and a second support seat which are arranged in sequence from top to bottom. The first support seat is connected to the side wall of the compressor through a bracket, and the second support seat is fixed to the bottom of the installation inner cavity through a support pressing profile. A plurality of primary vibration reduction parts are dispersedly provided between the first support seat and the bracket, and a plurality of secondary vibration reduction parts are dispersedly provided between the first support seat and the second support seat.

4. The fresh air air conditioner according to claim 3, characterized in that: A first buffer layer is arranged between the first support seat and the second support seat, a second buffer layer is arranged between the second support seat and the bottom of the installation cavity, and avoidance parts adapted to the positions of the secondary vibration damping parts are arranged on the first buffer layer, and the secondary vibration damping parts pass through the corresponding avoidance parts.

5. The fresh air air conditioner according to claim 3, characterized in that: A heat exchanger group is also arranged in the installation inner cavity, and the heat exchanger group includes an air inlet heat exchanger and an air exhaust heat exchanger longitudinally connected to the longitudinal partition; A water receiving pan is also provided below the heat exchanger group, and the water receiving pan includes a first water receiving area and a second water receiving area, the first water receiving area is located below the air inlet heat exchanger, and the bottom surface height of the first water receiving area is higher than the bottom surface height of the second water receiving area; A sealing member is further provided between the air inlet heat exchanger and the water receiving pan, and a drainage channel is formed on the sealing member for draining condensed water in the first water receiving area into the second water receiving area.

6. The fresh air air conditioner according to claim 5, characterized in that: The first support seat is formed with a downwardly extending water collecting portion and a flow guiding portion which is connected with the water collecting portion and has one end open. The output end of the flow guiding portion extends above the water receiving tray. The bottom of the water collecting portion is also formed with a silencer which extends upward.

7. The fresh air air conditioner according to claim 1, characterized in that: The outer shell comprises an upper cover plate, a lower cover plate and a peripheral side plate located between the upper cover plate and the lower cover plate; The lower cover plate is provided with an inspection port, to which an inspection cover plate is detachably connected. The inspection port is located directly below the heat exchange core and is connected to the outdoor air inlet area and the indoor return air area on both sides of the heat exchange core.

8. The fresh air air conditioner according to claim 7, characterized in that: The heat exchange core includes at least two core units arranged perpendicular to the first direction. The heat exchange core is detachably connected to the installation inner cavity through a support assembly. The support assembly includes a fixed support member and a movable support member relatively arranged along the first direction. Relatively opposite support positions are formed on the fixed support member and the movable support member, and both sides of the heat exchange core extend into the support positions respectively.

9. The fresh air air conditioner according to claim 8, characterized in that: The fixed support member comprises an upper fixed bracket and a lower fixed bracket, the upper fixed bracket is formed with an upper flange inclined upward, the lower fixed bracket is formed with a lower flange inclined downward, and the support position is located between the upper flange and the lower flange; The movable support member includes an upper movable bracket and a lower movable bracket, the lower movable bracket includes a detachable bracket and a lower support frame, and the length of the detachable bracket is not less than the length of any of the core units.

10. The fresh air air conditioner according to claim 1, characterized in that: A horizontal support frame and a plurality of vertical frames are also provided in the installation inner cavity. The horizontal support frame is located at the bottom of the installation inner cavity and is connected to the inner surface of the lower cover plate. Each of the vertical frames is respectively provided at the inner side of the corner of the side plate group. The bottom of the vertical frame is fixedly connected to the horizontal support frame. Each of the vertical frames includes a first vertical wall and a second vertical wall which are perpendicular to each other. A first overlapping edge and a second overlapping edge are formed on the first vertical wall and the second vertical wall respectively. A sealing piece is detachably connected to the first overlapping edge and the second overlapping edge, and the sealing piece is used to cover the end face of the vertical frame.

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