CN220453820U - Air conditioner host and equipment platform adopting preposed fan wall exhaust cavity small-area exhaust outlet - Google Patents

Abstract

The utility model belongs to the technical field of new energy, and discloses an air conditioner host and an equipment platform adopting a small-area air outlet of an air exhaust cavity of a front-mounted fan wall. The air conditioner main unit comprises a shell, an outer heat exchanger arranged in the shell, an outer heat exchanger negative pressure cavity formed by the outer heat exchanger, a part of shell and a back plate, and an exhaust cavity; the back plate is provided with a plurality of air outlets of the negative pressure cavities of the external heat exchangers, the air outlets are provided with fans, and the air outlets of the air outlets are positioned on an air outlet cavity panel opposite to the fans; the air inlet, the outer heat exchanger, the negative pressure cavity of the outer heat exchanger, the fan, the exhaust cavity and the air outlet of the air conditioner host form an air inlet and outlet path with progressive layout with the rear outer heat exchanger and the front fan and the exhaust cavity. The utility model constructs the external heat exchanger air path with short path, low resistance, large air quantity and high heat exchange intensity, improves the energy density of the main body of the air conditioner, and constructs the novel air path structural relationship between the main body of the air conditioner and the outer facade of the equipment platform.

Description

Air conditioner host and equipment platform adopting preposed fan wall exhaust cavity small-area exhaust outlet

Technical Field

The utility model belongs to the technical field of new energy, and particularly relates to an air conditioner host and an equipment platform adopting a small-area air outlet of an air exhaust cavity of a front-mounted fan wall.

Background

The air path structure of the external heat exchanger module of the main machine of the household air conditioner is mostly a model of 'side surface and back surface large-area low-speed air inlet, front surface multi-fan medium-speed air exhaust and air path side-in and side-out' facing the open atmosphere environment, as shown in figure 1.

The present household air conditioner host machine, as shown in figure 2, excludes the scheme of an upper air outlet structure of a high-power multi-split air conditioner and the classical structure of a side air outlet of a continuous room air conditioner, transfers the air outlet structure from an open atmospheric environment suspended on an outer facade of a building to a corridor type equipment platform with a decorative outer facade, and has serious problems of unsmooth air exhaust and air conditioner performance degradation.

In recent years, building designers strengthen the decoration of the outer facade of a building and an equipment platform, when the building designers hide an air conditioner host on the outer facade of the equipment platform by using a shutter for the visual effect of the outer facade of the building, the medium-speed exhaust (below 7 m/s) air conditioner host exhausts air to the atmosphere outside the equipment platform, the static pressure of the exhaust is increased, the exhaust speed is reduced, the air quantity is reduced, a considerable part of air flow in the reduced exhaust air quantity is blocked by the shutter and returns to the equipment platform, and is again inhaled by an external heat exchanger to cause air flow short circuit, the diffusion dilution effect of the air exhaust penetrating through the shutter of the outer facade into the environment is severely inhibited, so that the condensation pressure of the external heat exchanger is insufficient when the air conditioner host is used for refrigerating operation in summer, the evaporation pressure of the external heat exchanger is excessively low, the refrigerant circulation quantity of the air conditioner is greatly attenuated when the air conditioner is used for heating operation in winter, the task of the air conditioner serving as a heat carrier cannot be finished at a sufficient amount, and the performance of the air conditioner host on the equipment platform is greatly reduced compared with the performance of the air conditioner host on the equipment platform in laboratory data.

Disclosure of Invention

In order to solve the problems in the prior art, an air conditioner host adopting a small-area air outlet of an air exhaust cavity of a front-mounted fan wall is provided by the utility model, wherein the air inlet and outlet fields of an external heat exchanger with short path, low resistance, large air quantity, high heat exchange strength and the like are constructed;

another object of the present utility model is to provide an air conditioning host equipment platform.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

an air conditioner main unit adopting a small-area air outlet of an exhaust cavity of a front fan wall comprises a shell, an outer heat exchanger arranged in the shell, an outer heat exchanger negative pressure cavity formed by the outer heat exchanger, a part of the shell and a back plate, and an exhaust cavity; the back plate is provided with a plurality of air outlets of the negative pressure cavities of the external heat exchangers, the air outlets are provided with fans, and the air outlets of the air outlets are positioned on an air outlet cavity panel opposite to the fans; the air inlet, the outer heat exchanger, the negative pressure cavity, the fan, the exhaust cavity and the air outlet of the air conditioner host form an air inlet and outlet path with progressive layout of the rear-mounted outer heat exchanger and the front-mounted fan and exhaust cavity.

The air conditioner host machine comprises a host machine suitable for an air conditioner refrigerating system and a host machine suitable for an air energy water heater.

Further, the outer heat exchanger is one of a horizontal section C-shaped finned tube heat exchanger, a horizontal section L-shaped finned tube outer heat exchanger, a horizontal section V-shaped finned tube heat exchanger assembly or a zigzag fold line-shaped finned tube heat exchanger assembly.

Further, the horizontal section V-shaped finned tube heat exchanger assembly comprises at least 2 flat plate type finned tube heat exchangers; or the V-shaped finned tube heat exchanger is formed by bending a flat plate type finned tube heat exchanger; or consists of a flat plate type finned tube heat exchanger and a V-shaped finned tube heat exchanger formed by bending the flat plate type finned tube heat exchanger; the cross section of the horizontal section V-shaped finned tube heat exchanger assembly perpendicular to the long sides of the fins is a folded line type.

The long sides of the fins of the flat plate type finned tube heat exchanger are arranged in the vertical direction or close to the vertical direction in the horizontal air duct.

Further, the cross section of the horizontal section V-shaped finned tube heat exchanger assembly vertical to the long sides of the fins is V-shaped or N-shaped, or the horizontal section V-shaped finned tube heat exchanger assembly is formed by continuously arranging at least 2 fin tube heat exchangers with the cross sections vertical to the long sides of the fins.

Preferably, the cross section of the horizontal cross section V-shaped finned tube heat exchanger assembly, which is perpendicular to the long sides of the fins, is W-shaped; preferably, the apex angle alpha of the V-shaped fin tube heat exchanger is 15-110 degrees.

Preferably, the apex angle alpha of the V-shaped fin tube heat exchanger is 30-90 degrees.

Preferably, the apex angle alpha of the V-shaped fin tube heat exchanger is 30-60 degrees.

Further, one side of the section of the horizontal section V-shaped finned tube heat exchanger assembly vertical to the long sides of the fins is a heat exchanger air inlet surface, and the other side is a heat exchanger air outlet surface; the air outlet surface belongs to the negative pressure cavity area of the external heat exchanger.

Further, the incident surface of the air inlet flow is each flat plate type finned tube heat exchanger in the horizontal section V-shaped finned tube heat exchanger assembly, and the intersection angle between the air inlet flow and the tip of each fin plate on each flat plate type finned tube heat exchanger is an obtuse angle; the obtuse angle beta is 97.5-145 degrees; the air inlet flow impacts the tip of each fin plate in the horizontal section V-shaped fin tube heat exchanger assembly at an obtuse angle beta, and is reflected by the fin tip plate to enter fin gaps to flow to the negative pressure cavity of the external heat exchanger.

Further, the flow rate of the air flow entering each fin gap d is equal to the air inlet flow intercepted by the vertical distance delta between the tips of the front fin plate and the rear fin plate of the flat plate type fin tube heat exchanger in the horizontal section V-shaped fin tube heat exchanger assembly on the air inlet section;

delta = d.sin alpha/2, where alpha is the apex angle of the V-type finned tube heat exchanger;

The vertical distance delta value of the tips of the front fin plate and the rear fin plate of the flat plate type fin tube heat exchanger on the air inlet section is 0.13 d-0.7 d.

Preferably, the air flow speed of the fin gap is 1/3 of the air inlet speed, and the incidence obtuse angle beta corresponding to the vertex angle alpha of the V-shaped fin tube heat exchanger is 39 degrees and 109.5 degrees.

Further, the zigzag broken line type finned tube heat exchanger assembly is formed by combining a flat plate type finned tube heat exchanger, a V-shaped finned tube heat exchanger and a partition plate; the zigzag fold line type finned tube heat exchanger assembly is zigzag in cross section perpendicular to the long sides of the fins.

The finned tube copper tubes of the serrated fold line type finned tube heat exchanger assembly are parallel to the serrated edges; the fin plate group of the fin tube heat exchanger is orthogonally sleeved on the copper tube.

The zigzag fold line type finned tube heat exchanger assembly, the upper bottom plate, the lower bottom plate, the left side plate and the right side plate are combined into an outer heat exchanger negative pressure cavity.

The finned tube copper tubes are parallel or basically parallel to the upper bottom plate and the lower bottom plate and are in oblique relation with the left side plate and the right side plate.

The zigzag fold line type finned tube heat exchanger assembly divides a heat exchange air duct into a front cavity and a rear cavity, the front cavity is an air inlet cavity, the rear cavity is communicated with an air suction port of the fan set and is a negative pressure cavity of the external heat exchanger;

preferably, the finned tube copper tube forms an obtuse angle with the side wall of the negative pressure cavity of the adjacent external heat exchanger.

Further, the back plate is provided with at least 2 air outlets; a fan is arranged at each air outlet to form a fan wall; preferably, the fan adopts a centrifugal fan or an axial flow fan; further preferably, the centrifugal fan is a backward inclined outer rotor centrifugal fan.

Further, the air outlet area of the air exhaust cavity is 15-60% of the air inlet surface area of the negative pressure cavity of the outer heat exchanger.

Further, the air outlet of the air exhaust cavity is positioned in the middle or lower part of the panel of the air exhaust cavity; preferably, the air outlet comprises a horizontal strip-shaped or vertical strip-shaped air outlet which is arranged in the middle or lower part of the air exhaust cavity panel.

Further, an exhaust section is arranged at the air outlet.

Further, a plurality of flow guide plates are arranged in the exhaust section; the air guide plate sheet is parallel to or nearly parallel to the shutter sheets, or the air guide plate sheet is vertically arranged and provided with an angle for guiding the exhaust air flow to deviate from the air conditioner host.

Further, a diving type exhaust section is arranged at the air outlet; a plurality of flow guide plates are arranged in the diving type exhaust section.

Further, an outer convex exhaust section is arranged at the air outlet; a plurality of flow guide plates are arranged in the convex exhaust section.

Further, the sides of the negative pressure cavity and the exhaust cavity of the external heat exchanger are provided with a compressor cavity for placing a fluorine circuit component comprising a compressor, a gas-liquid separator, a four-way valve, an expansion valve and an electric box.

Further, the air conditioner main unit is also provided with an intermediate heat exchanger, and two paths of heat exchange medium channels of the intermediate heat exchanger are respectively a refrigerant channel and an air conditioner water channel of the air conditioner main unit; the refrigerant channel is connected with a fluorine path of the air conditioner host; the air conditioner water channel is connected with an air conditioner indoor heat exchanger.

An air conditioner host equipment platform, the air conditioner host sets up in outer corridor type equipment platform, the air outlet in chamber of airing exhaust is towards outer facade of outer corridor type equipment platform.

Further, an exhaust section is arranged at the air outlet; the exhaust section is arranged adjacent to the outer vertical face shutter of the outer corridor type equipment platform. Further, a diving type exhaust section is arranged at the air outlet; the diving type exhaust section is arranged adjacent to the outer vertical face shutter of the outer corridor type equipment platform; the deflector plates of the dive exhaust section are parallel or nearly parallel to the louver plates.

Further, an exhaust section is arranged at the air outlet; an opening structure matched with an exhaust section positioned in the middle or lower part of the exhaust cavity is arranged on the outer elevation shutter of the outer corridor type equipment platform; the exhaust section at the middle part or the lower part of the exhaust cavity is embedded into the shutter opening structure. Further, an outer convex exhaust section is arranged at the air outlet; the outer vertical face shutter of the outer corridor type equipment platform is provided with an opening structure matched with an outer convex type exhaust section positioned in the middle or lower part of the exhaust cavity; the outer convex type exhaust section at the middle part or the lower part of the exhaust cavity is embedded into the shutter opening structure.

Compared with the prior art, the utility model has the following beneficial effects:

(1) construction of external heat exchanger air path with short path, low resistance, large air quantity and high heat exchange strength

The outer surface of the exhaust cavity of the external heat exchanger is provided with a rectangular small-area air outlet, and the flow section of exhaust of each fan is large, the path is short and the resistance is small in the exhaust cavity in front of the air outlet; the rectangular air outlet area is small and is not more than 1/2 of the air inlet area of the external heat exchanger, the speed of the air exhaust air flow and the dynamic pressure head which are gushed out from the positive pressure air exhaust cavity under the static pressure driving of the air exhaust cavity respectively reach more than 2 times and 4 times of the air inlet speed of the external heat exchanger and the dynamic pressure head, and the air exhaust device has strong penetrating capacity and good diffusion dilution effect.

The air exhaust surface of the traditional household central air conditioner main unit is formed by combining a plurality of cake-shaped medium-speed axial flow fans, so that the air exhaust surface is difficult to fit with the shutter structure of the outer vertical surface of the equipment platform, and the air exhaust surface of the air conditioner main unit is difficult to penetrate the shutter with low resistance; according to the utility model, through the progressive layout of the air inlet of the air conditioner main unit, the outer heat exchanger assembly, the negative pressure cavity of the outer heat exchanger, the fan wall, the air exhaust cavity of the outer heat exchanger and the rectangular small-area air outlet of the air exhaust cavity, the outer heat exchanger air path which is short in path, low in resistance, large in air quantity, high in heat exchange strength and high in air exhaust speed and can effectively prevent the backflow short circuit of exhaust air is constructed, and conditions are prepared for further constructing the air path which is in fit with the shutter structure of the outer elevation of the equipment platform.

(2) Construction of heavy-load external heat exchanger structure of air conditioner main unit and improvement of energy density of air conditioner main unit

The utility model takes the V-shaped finned tube heat exchanger with the horizontal section as the basic unit of the external heat exchanger assembly of the air conditioner host, the V-shaped finned tube heat exchanger with the horizontal section is arranged in the limited space of the air conditioner host and is parallel to the direction of the air inlet surface of the air inlet of the host, the air inlet surface of the V-shaped finned tube heat exchanger assembly with the horizontal section is unfolded to obtain a large-area heat exchanger ventilation surface, and the large-area heat exchanger ventilation surface is unfolded for the second time to obtain a large-area fin heat transfer surface.

According to the air conditioner main unit, the air in the negative pressure cavity of the external heat exchanger is pumped and discharged by the plurality of fans on the fan wall vertically to generate negative pressure in the cavity, and the ambient air is pulled to enter the air conditioner main unit from the air inlet of the air conditioner main unit at a medium speed (about 4 m/s) instead of a traditional low speed (below 2 m/s); in a chain flow of medium-speed air intake of air flow of an external heat exchanger, gradient planing and dispersion speed reduction of a fin planing tool, heat exchange on huge fin heat exchange areas on a total huge ventilation surface, collection acceleration, fan boosting and high-speed discharge, a fan is used as a power source, and huge continuous arrangement of fin planing tools of a horizontal section V-shaped fin tube heat exchanger is used as a core, so that speed reduction and air distribution of fin gaps are completed, the efficiency and smoothness are realized, and a heavy-load high-efficiency heat exchange structure with large air volume and high strength inside an air conditioner host is constructed;

The fan is vertically arranged, the air suction inlet is a straight-face external heat exchanger, the upward turning local resistance of the air flow before the suction inlet of the traditional air exhaust multi-split fan is reduced, the fin planing tool planes the air flow of the main body in a ladder way, so that the air flow lines enter and exit the fin gaps in a fold line form in a plane vertical to the long sides of the fins, and the local resistance such as the impact of the air flow on the fin tip turns, the speed reduction of the expanding air flow of the flow section in the fin gaps and the turning acceleration of the flow out of the fin gaps are generated; the local resistance of the air flow entering and exiting the fin gaps is obviously larger than the resistance of the air inlet section before and the resistance of the air outlet section after the fin tube heat exchanger assembly, so that the throttling effect of the fin gaps on the air flow is more obvious, and the ventilation and heat exchange uniformity of the surface of the fin tube external heat exchanger assembly is improved; the utility model breaks through the problem of non-uniformity of vertical ventilation and heat exchange of the traditional multi-split external heat exchanger, and the height of the external heat exchanger can break through the traditional design of about 1200mm of the multi-split external heat exchanger and be improved to more than 2000 mm.

The flow resistance and the convection heat transfer coefficient are a pair of heat transfer factors which are 'opposite and uniform', the improvement of the convection heat transfer coefficient is usually at the cost of increasing the flow resistance, and the baffle plates in the shell-and-tube heat exchanger and the fin planer of the utility model are both improved by increasing the necessary flow resistance.

Through the measures, the utility model greatly improves the load intensity of the external heat exchanger and the energy density of the main body of the air conditioner.

Drawings

FIG. 1 is a three-dimensional view of a prior art air duct back-in front-out central air conditioner host;

FIG. 2 is a top view of an external heat exchanger air path of a rear-inlet front-outlet type central air conditioner host machine of the air path, wherein the air flow rate is reduced due to the fact that the equipment platform louver blocks the air outlet static pressure from rising, and part of air outlet flows back to an air inlet;

FIG. 3 is a three-dimensional cross-sectional view of a main unit of an air conditioner with a small-area air outlet of an exhaust cavity of a front-mounted fan wall in embodiment 1;

fig. 4 is a front view of an air conditioner host with a small-area air outlet of an exhaust cavity of a front-mounted fan wall in embodiment 1;

fig. 5 is a top view of the air conditioner host with the small-area air outlet of the exhaust cavity of the front fan wall in embodiment 1;

FIG. 6 is a schematic view of a three-dimensional structure of a horizontal cross-section V-shaped finned tube heat exchanger assembly;

FIG. 7 is a horizontal cross-sectional view of a "fin planer" at the fin gap entrance to intercept the incoming airflow, stepped planing to reflect the incoming airflow into the fin gap to complete heat exchange with the fins, and then to discharge the fin gap;

FIG. 8 is a top view of the air flow of the air conditioner main unit with a small area air outlet of the exhaust cavity of the front-mounted fan wall in embodiment 1;

FIG. 9 is a longitudinal vertical cross-sectional view of the air conditioner main unit operation airflow of the small-area air outlet of the exhaust cavity of the front-mounted fan wall in embodiment 1;

FIG. 10 is a schematic diagram of an air conditioning system with a small area air outlet for a front-mounted blower wall exhaust cavity in accordance with embodiment 1;

FIG. 11 is a top view of a front-mounted blower wall exhaust cavity small area air outlet and a rear-mounted L-shaped finned tube heat exchanger air conditioner host in embodiment 2;

FIG. 12 is a top view of the air flow of the air conditioner main unit of the rear-mounted L-shaped finned tube heat exchanger with a small-area air outlet of the exhaust chamber of the front-mounted fan wall in embodiment 2;

FIG. 13 is a longitudinal vertical cross-sectional view of the air flow of the air conditioner main unit of the rear-mounted L-shaped finned tube heat exchanger of the small-area air outlet of the exhaust chamber of the front-mounted fan wall in embodiment 2;

FIG. 14 is a top view of a front fan wall exhaust chamber small area exhaust outlet and a rear horizontal section C-shaped finned tube heat exchanger air conditioner host in accordance with example 3;

FIG. 15 is a front view of a host computer of an air conditioner with a horizontal strip-shaped air outlet according to embodiment 4;

fig. 16 is a vertical sectional view of an air conditioner host with a horizontal strip-shaped air outlet according to embodiment 4;

fig. 17 is a front view of the air conditioner main unit with a vertical strip-shaped air outlet according to embodiment 5;

FIG. 18 is a vertical sectional view of a main unit of an air conditioner with an air outlet at the lower part of the panel of the air discharge chamber in embodiment 6;

FIG. 19 is a front view of a host air conditioner with a vertical stripe-shaped dive vent according to example 7;

FIG. 20 is a vertical cross-sectional view of a host air conditioner with a vertical strip-shaped dive vent according to example 7;

FIG. 21 is a diagram showing the distribution of the air exhaust area of the upper air intake area of the blind in the outer vertical surface when the air conditioner host with the vertical strip-shaped diving type air outlet of the embodiment 7 is operated on the equipment platform;

FIG. 22 is a schematic diagram of an air conditioning system with an intermediate heat exchanger production air conditioning water input indoor unit of example 8;

FIG. 23 is a front view of the air conditioner mainframe with a horizontal stripe-shaped male air discharge section according to embodiment 10;

FIG. 24 is a vertical cross-sectional view of the air conditioner host of embodiment 10 with the horizontal strip-like male air exhaust segments embedded in the open structure of the equipment platform shutter;

fig. 25 is a diagram showing the distribution of the air exhaust area of the air inlet area on the outer vertical surface of the equipment platform when the air conditioner host machine of the embodiment 10 is operated with the horizontal stripe-shaped outer convex air exhaust section embedded in the shutter opening structure of the equipment platform.

FIG. 26 is a top view of an air conditioning host of a zigzag-type finned tube heat exchanger assembly of example 9;

FIG. 27 is a top plan view of the air conditioning main unit operating airflow of a zigzag-type finned tube heat exchanger assembly of example 9;

FIG. 28 is a top view of a side-drift air conditioner main unit structure employing a front fan wall exhaust chamber of a rear finned tube heat exchanger assembly;

FIG. 29 is a top plan view of the front blower wall side draft air flow side drift air conditioner main unit air flow;

FIG. 30 is a schematic view of the distribution of the air inlet surface and the air outlet surface on the outer vertical surface of the equipment platform when the front fan wall side air outlet airflow side drift jet air conditioner host operates in summer;

FIG. 31 is a schematic view of the vertical airflow collection and upward movement of a building during summer operation with a side-air-exhaust air conditioning host installed on the equipment platform.

Detailed Description

For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments, based on the described embodiments, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of protection of the present application.

Unless otherwise defined, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

In the description of the present utility model, it should be understood that the terms "transverse," "longitudinal," "length," "upper," "lower," "left," "right," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Definition: the direction perpendicular to the outer vertical face of the outer corridor type equipment platform is set to be longitudinal, and the direction parallel to the outer vertical face of the outer corridor type equipment platform is set to be transverse.

Example 1

As shown in fig. 3 to 5, an air conditioner main unit adopting a small-area air outlet of an exhaust cavity of a front fan wall comprises a shell 1, an outer heat exchanger 2 arranged in the shell, an outer heat exchanger negative pressure cavity 22 consisting of the outer heat exchanger 2, a part of the shell and a back plate 21, and an exhaust cavity 3.

The sides of the outer heat exchanger negative pressure chamber 22 and the exhaust chamber 3 are provided with a compressor chamber 4 for placing a fluorine circuit assembly including a compressor 41, a gas-liquid separator 42, a four-way valve, an expansion valve, and an electric tank.

The back plate 21 is provided with exhaust outlets 23 of the negative pressure cavities 22 of the 4 external heat exchangers, and each exhaust outlet 23 is provided with a fan 24 to form a fan wall. The fan 24 is positioned in the exhaust cavity 3, and the fan 24 is a backward inclined outer rotor centrifugal fan.

The area of the air outlet 31 of the air exhaust cavity is 15-60% of the area of the air inlet surface of the negative pressure cavity 22 of the external heat exchanger.

The air outlet 31 of the air exhaust cavity is rectangular and is positioned in the middle of the air exhaust cavity panel 32 opposite to the fan 24.

As shown in fig. 6 to 7, the external heat exchanger 2 of this example is a horizontal-section V-shaped fin tube heat exchanger assembly as a specific embodiment. The horizontal section V-shaped finned tube heat exchanger assembly consists of 4 flat plate type finned tube heat exchangers 37; or 2 fin tube heat exchangers 40 with V-shaped cross sections perpendicular to the long sides of the fins are arranged continuously. The V-type fin tube heat exchanger 40 is composed of 2 flat plate type fin tube heat exchangers 37.

The heat exchange tube 115 connects the lotus header gas collection tube 133 and the fluorine line 134.

The lotus header gas collectors 133 at the vertices of each V-shape are arranged in one-to-one correspondence with the V-shape finned tube heat exchangers 40, and one set of lotus header gas collectors 133 serves 2 flat plate-type finned tube heat exchangers 37 constituting the V-shape.

As shown in fig. 7, the flat plate type fin tube heat exchanger includes a fin plate 110 and heat exchange tubes 115; a plurality of fin plates 110 parallel to each other and spaced apart from each other by a certain interval to form a fin group; passes through the heat exchange tubes 115 in a direction perpendicular to the plane of the fin plate 110.

The section of the horizontal section V-shaped finned tube heat exchanger assembly perpendicular to the long sides of the fins is a broken line, and more specifically, is a W shape;

the fin long sides of the flat plate-type fin tube heat exchanger 37 are disposed in the vertical direction or in the nearly vertical direction.

The vertex angle alpha of the V-shaped fin tube heat exchanger is 15-110 degrees.

As an alternative embodiment, the V-fin tube heat exchanger has a top angle α of 30 ° to 90 °.

As an alternative embodiment, the V-fin tube heat exchanger has a top angle α of 30 ° to 60 °.

As shown in fig. 7, one side of the section of the horizontal section V-shaped finned tube heat exchanger assembly vertical to the long sides of the fins is a heat exchanger air inlet surface, and the other side is a heat exchanger air outlet surface; the air outlet surface belongs to the area of the negative pressure cavity 22 of the external heat exchanger.

The incident surface of the air inlet flow is each flat plate type finned tube heat exchanger in the horizontal section V-shaped finned tube heat exchanger assembly, and the intersection angle between the air inlet flow and the tip of each fin plate 110 on each flat plate type finned tube heat exchanger 37 is an obtuse angle beta; the obtuse angle beta is 97.5-145 degrees; the incoming air stream impinges the tips of each fin plate 110 at an obtuse angle beta and is reflected by the fin tips into the fin gap to the outer heat exchanger negative pressure chamber 22.

The flow rate of the air flow entering each fin gap d is equal to the air inlet flow intercepted by the vertical distance delta between the tips of the front fin plate and the rear fin plate of the flat plate type finned tube heat exchanger on the air inlet section;

Delta = d.sin alpha/2, where alpha is the apex angle of the V-type finned tube heat exchanger;

the vertical distance delta value of the tips of the front fin plate and the rear fin plate of the flat plate type fin tube heat exchanger on the air inlet section is 0.13 d-0.7 d.

As a specific embodiment, the air flow speed of the fin gap is 1/3 of the air inlet speed, and the incidence obtuse angle beta corresponding to the vertex angle alpha of the V-shaped fin tube heat exchanger is 39 degrees and 109.5 degrees.

As shown in fig. 8 and 9, the air inlet 11, the outer heat exchanger 2, the outer heat exchanger negative pressure chamber 22, the blower 24, the air exhaust chamber 3 and the air outlet 31 of the air conditioner main unit of the present embodiment form an air inlet and outlet path with a progressive layout of the rear of the outer heat exchanger and the front of the blower and the air exhaust chamber.

The embodiment creatively reconstructs an outer heat exchanger structure, an outer heat exchanger air path structure and an air conditioner host structure of the household air conditioner host by adopting the small-area air outlet of the front fan wall and the rear finned tube heat exchanger, thereby creating conditions for fusion of the air conditioner host and an equipment platform.

(1) Innovative structure design of air conditioner main unit

Compared with a classical household air conditioner host, the air conditioner host of the embodiment is characterized in that: the heat exchange device comprises a horizontal section V-shaped finned tube heat exchanger with an oversized heat exchange area, wherein the horizontal section V-shaped finned tube heat exchanger is arranged at the rear part of the whole structure, a fan wall, an exhaust cavity and an air outlet are arranged at the front part, and a small-area air outlet is arranged on the outer surface of the front exhaust cavity.

6-7, the horizontal section V-shaped finned tube heat exchanger assembly of the embodiment comprises a W-shaped structure consisting of 4 flat plate type finned tube heat exchangers; or a W-shaped structure is formed by a V-shaped finned tube heat exchanger formed by bending 2 flat plate type finned tube heat exchangers; or a W-shaped structure is formed by a flat plate type finned tube heat exchanger and a V-shaped finned tube heat exchanger formed by bending the flat plate type finned tube heat exchanger; the section of the fin tube external heat exchanger perpendicular to the long sides of the fins is a folded line type.

In the limited space of the air conditioner host, the 2 horizontal section V-shaped finned tube heat exchangers are arranged in parallel to the direction of the air inlet surface of the air conditioner host, the air inlet surface of the V-shaped finned tube heat exchanger with the horizontal section is unfolded to obtain a large-area ventilating surface of the outer heat exchanger, and the large-area ventilating surface of the outer heat exchanger is unfolded again to obtain a large-area heat transfer surface of the fins, so that the total heat transfer area of the fins of the outer heat exchanger of the air conditioner host is effectively enlarged, the heat transfer temperature difference of the body of the outer heat exchanger is reduced, the evaporating pressure is increased, the condensing pressure is reduced, and the refrigerating capacity and the energy efficiency ratio of a refrigerating and air conditioning system are improved.

As shown in fig. 4 to 5, the present embodiment provides 1 outer heat exchanger negative pressure chamber 22, and the outer heat exchanger negative pressure chamber 22 is formed by combining a bottom plate (i.e., the bottom plate of the housing 1), a side plate 25, a back plate 21, an outer heat exchanger 2, and a top plate (i.e., the top plate of the housing 1).

The back plate 21 is arranged opposite to the horizontal continuous V-shaped finned tube heat exchanger with a horizontal section, and 4 air outlets 23 are arranged on the back plate 21. The back inclined outer rotor centrifugal fan 24 is arranged at the air outlet 23 on the back plate 21, the air outlet 23 on the back plate 21 is the air suction opening of the back inclined outer rotor centrifugal fan, and a plurality of air outlets 23 are arranged on the back plate 21 of the back inclined outer rotor centrifugal fan 24 to form a centrifugal fan wall.

The outside of the back-inclined outer rotor centrifugal fan wall is provided with an exhaust cavity 3, the exhaust cavity 3 consists of a fan wall, a side panel (namely a side panel of the shell 1), a bottom plate (namely a bottom plate of the shell 1), a top plate (namely a top plate of the shell 1) and an exhaust cavity panel 32 (namely a panel of the shell 1), and an air outlet 31 of the exhaust cavity is arranged on the opposite surface of the exhaust cavity panel 32, namely the fan wall.

The sides of the outer heat exchanger negative pressure chamber 22 and the exhaust chamber 3 are provided with a compressor chamber 4 for placing fluorine circuit components including a compressor 41, a gas-liquid separator 42, a four-way valve 43, an expansion valve, an electric box, and the like.

(2) Innovative design of air conditioner main unit external heat exchanger air inlet and outlet field

The air conditioner host adopting the front fan wall small-area air outlet and the rear finned tube heat exchanger comprises an air inlet 11, an outer heat exchanger negative pressure cavity 22, an air exhaust cavity 3 and an air outlet 31 of the air exhaust cavity, and forms an air inlet and outlet path of the progressive layout of the rear outer heat exchanger, the front fan and the front air exhaust cavity, and an outer heat exchanger air inlet and outlet field with short construction path, low resistance, large air quantity and high heat exchange strength is constructed.

As shown in fig. 8 and 9, when the external heat exchanger of the present embodiment is in ventilation heat exchange operation, the heat exchange air flow undergoes two static pressure-dynamic pressure conversions from the air inlet 11 to the air outlet 31 of the air conditioner main unit with the fan 24 as power. The first static pressure-dynamic pressure conversion realizes the high-speed suction of air flow at the air suction port of the fan, and the second static pressure-dynamic pressure conversion realizes the high-speed discharge of air flow at the air outlet of the air exhaust cavity; in addition, the air flow lines entering and exiting the fin gaps of the fin tube heat exchanger are fold line type air flow lines turning twice and are positioned in a plane perpendicular to the long sides of the fins, but not in a plane parallel to the fins; these two points are the most essential movement characteristics of the ventilation and heat exchange process of the external heat exchanger of the embodiment.

In the embodiment, the air inlet and outlet field of the air conditioner host machine horizontal section V-shaped finned tube external heat exchanger is established through the operation of a plurality of fans on the fan wall: the air in the negative pressure cavity 22 of the external heat exchanger is pumped and discharged by 4 fans 24 on the vertically arranged fan wall to generate negative pressure in the cavity, the ambient air under the static pressure (gauge pressure) of 0Pa is pulled to enter the air conditioner main unit from the main unit air inlet at a medium speed (about 4 m/s), the air inlet flow is dispersed and decelerated by planing the main body air inlet flow through a plurality of fin planing knives, the low speed (below 2 m/s) flows through the fin gaps of the horizontal section V-shaped finned tube heat exchanger to complete heat exchange, then enters the negative pressure cavity 22 of the external heat exchanger, is collected and accelerated, and flows into the fan air inlet with the lowest total path pressure (the gauge pressure is negative) at a high speed to complete the primary air static pressure-dynamic pressure conversion.

The air flow flowing into the air suction port of the fan at high speed is boosted by the fan and sent into the air exhaust cavity 3 which is positive in pressure relative to the atmospheric environment, and is ejected into the atmospheric environment from the rectangular small-area air outlet 31 on the outer vertical surface of the air exhaust cavity to be diffused and diluted at high speed (about 8 m/s) under the positive pressure of the air exhaust cavity; the heat exchange airflow in the embodiment takes the fan as power from the air inlet to the air outlet of the air conditioner main unit, and undergoes twice static pressure-dynamic pressure conversion, so that the high-speed suction of the fan and the high-speed discharge of the exhaust cavity are realized.

When the air conditioner main unit of the embodiment operates, the microscopic process that the air flow enters and exits the fin gaps and flows at a low speed in the fin gaps is an important link of the external heat exchanger entering and exiting the wind field.

At the section of the air inlet E-E, medium-speed air flow of about 4m/s flowing in from the outer vertical surface of the equipment platform is pushed to the section F-F of the fin gap inlet in a uniform laminar flow mode, the line of the air inlet air flow at the section F-F and the fins at the back side of the gap form an obtuse angle relation, and the fins at the back side of the gap are used as a plane cutter to plane a piece of air flow from the air inlet main body air flow and plug into the fin gap; the main body air inlet airflow which is "dug" is intercepted by the blade tip of the "fin planer" at the F-F position, and the main body air inlet airflow impinges on the blade tip of the "planer" of the fin at the back side of the gap at an obtuse angle, and is diffused and decelerated in the fin gap after being reflected by the fin at the front side of the gap; the air flow which is planed by the fin planing tool and is subjected to collision diffusion deceleration is pulled by negative pressure of the negative pressure cavity at about 1.5m/s, and flows out of the fin channel against the resistance of the fin gap channel; the low-speed air flow reaching the G-G section of the fin gap outlet is accelerated again to a medium-speed air flow of about 4m/s under the negative pressure pulling of the negative pressure cavity, and is collected and discharged at the H-H section.

When the air conditioner host machine of the embodiment operates, heat exchange is carried out between the air flow between the refrigerant in the condenser pipeline of the evaporator and the clearance air flow between the fins outside the pipeline, so that energy coupling is realized.

In this embodiment, on one side of the refrigerant, the refrigerant is driven to circulate by the compressor, and the refrigerant absorbs heat from the evaporator in the low-temperature air environment and releases heat from the condenser in the high-temperature air environment by high-efficiency phase change heat exchange of the refrigerant during circulation.

The present embodiment provides a compressor chamber 4 for housing circuit components including a compressor 41, a gas-liquid separator 42, a four-way valve 43, an expansion valve and an electric box, and a power cable signal line electric box, on the side surfaces of the outer heat exchanger negative pressure chamber 22 and the exhaust chamber 3.

As shown in fig. 10, the components of the refrigeration loop, such as an external heat exchanger, a refrigerant connecting pipe, an indoor heat exchanger, and the like, form a refrigeration air-conditioning circulation loop in the order of a compressor, a four-way valve, a condenser, an expansion valve, an evaporator, a four-way valve, a gas-liquid separator, and a compressor; the compressor is used as refrigeration cycle loop power, a high-low pressure state of a refrigerant is respectively established in a condenser evaporator pipeline, the refrigerant is driven to circularly flow and repeatedly change phase in the refrigeration cycle loop to realize 'heat transfer', namely, heat of low-temperature ambient air flowing through gaps of fins is absorbed through a huge fin heat absorption area S formed by evaporating and absorbing heat of refrigerant liquid in the evaporator pipeline and then rising and connecting a copper pipe, heat is released through high-temperature high-pressure refrigerant gas condensed and released in the condenser pipeline and then released to high-temperature ambient air flowing among the fins through a huge fin heat release area S formed by rising and connecting the copper pipe, and heat transfer from a low-temperature environment where an air conditioner evaporator is located to a high-temperature environment where the condenser is located is realized.

Example 2

As shown in fig. 11, the physical structures of the rear external heat exchanger, the front fan and exhaust cavity and the side compressor cavity are adopted in the embodiment and the embodiment 1; the present embodiment is different from embodiment 1 in that the outer heat exchanger 2 is a horizontal-section L-shaped fin tube outer heat exchanger.

The air conditioner host machine of the embodiment creatively reconstructs the air path structure of the external heat exchanger and the air conditioner host machine structure aiming at the problems in the background technology, and creates conditions for fusion of the air conditioner host machine and the equipment platform.

(1) Air conditioner main machine structure design

Compared with a classical household air conditioner host, the air conditioner host of the embodiment is characterized in that: the front-mounted fan wall and the positive pressure exhaust cavity are arranged, and the panel of the positive pressure exhaust cavity is provided with a small-area exhaust outlet.

The air conditioner main unit of the embodiment adopts a finned tube heat exchanger as the outer heat exchanger, and the horizontal section of the finned tube outer heat exchanger assembly vertical to the long sides of the fins is L-shaped;

in the embodiment, 1 negative pressure cavity 22 of the external heat exchanger is arranged, and the negative pressure cavity 22 of the external heat exchanger is formed by combining a horizontal section L-shaped finned tube external heat exchanger 2, a bottom plate (namely, the bottom plate of the shell 1), a side plate 25, a back plate 21 and a top plate (namely, the top plate of the shell 1); the back plate 21 is arranged relative to the L-shaped finned tube external heat exchanger with the horizontal section, 4 air outlets 23 are arranged on the back plate 21, a backward-inclined outer rotor centrifugal fan is arranged at the air outlet 23 on the back plate 21, the air outlets 23 on the back plate 21 are air inlets of the backward-inclined outer rotor centrifugal fan, and a plurality of air outlets are arranged at the back plate of the backward-inclined outer rotor centrifugal fan to form a fan wall surface.

The air exhaust cavity 3 is arranged on the outer side of the fan wall, and the air exhaust cavity 3 consists of the fan wall, a side panel (namely, a side panel of the shell 1), a bottom plate (namely, a bottom plate of the shell 1), a top plate (namely, a top plate of the shell 1) and an air exhaust cavity panel 32 (namely, a panel of the shell 1), wherein an air outlet 31 of the air exhaust cavity is arranged on the opposite surface of the air exhaust cavity panel 32, namely, the fan wall.

The compressor chamber 4 is arranged on the side surfaces of the outer heat exchanger 2, the fan wall and the exhaust chamber 3 and is used for placing fluorine circuit components including a compressor 41, a gas-liquid separator 42, a four-way valve, an expansion valve, an electric box and the like.

(2) Design of air conditioner main machine external heat exchanger air inlet and outlet field

The air inlet of the air conditioner main unit, the external heat exchanger, the negative pressure cavity of the external heat exchanger, the air exhaust cavity and the rectangular small-area air outlet of the air exhaust cavity are sequentially arranged in a linear mode, and the air inlet and outlet field of the external heat exchanger with short path, low resistance, large air quantity and high heat exchange strength is constructed.

As shown in fig. 12-13, when the external heat exchanger of the embodiment is in ventilation heat exchange operation, the centrifugal fan is used as power from the air inlet to the air outlet of the air conditioner main unit, the heat exchange air flow is subjected to two static pressure-dynamic pressure conversions, the first static pressure-dynamic pressure conversion realizes the high-speed air suction of the air inlet of the centrifugal fan, and the second static pressure-dynamic pressure conversion realizes the high-speed air discharge of the air outlet of the air exhaust cavity; this is the most essential movement feature of the ventilation and heat exchange process of the external heat exchanger of this embodiment.

In the embodiment, the air inlet and outlet fields of the external heat exchanger of the air conditioner host are established through the operation of a plurality of centrifugal fans on the fan wall: the air on the fan wall, namely 4 centrifugal fans pump out the air in the negative pressure cavity 22 of the outer heat exchanger to generate negative pressure in the cavity, the ambient air under the static pressure (gauge pressure) of 0Pa is pulled to enter the air conditioner main unit from the main unit air inlet, the low speed (below 2 m/s) flows through the fin gaps of the outer heat exchanger to complete heat exchange, then enters the negative pressure cavity 22 of the outer heat exchanger, and then is collected and accelerated, the air flows at high speed into the fan air inlet with the lowest full path pressure (the gauge pressure is negative), and the primary air static pressure-dynamic pressure conversion is completed; the air flow flowing into the air suction port of the fan at high speed is boosted by the fan 24 and sent into the air exhaust cavity 3 which is positive in pressure relative to the atmospheric environment, and is injected into the atmospheric environment for diffusion dilution at high speed (about 8 m/s) from the small-area air outlet on the panel of the air exhaust cavity under the positive pressure of the air exhaust cavity; the heat exchange airflow in the embodiment takes the fan as power from the air inlet to the air outlet of the air conditioner main unit, and undergoes twice static pressure-dynamic pressure conversion, so that the high-speed suction of the fan and the high-speed discharge of the exhaust cavity are realized.

When the air conditioner host machine of the embodiment operates, heat exchange is carried out between the air flow between the refrigerant in the condenser pipeline of the evaporator and the clearance air flow between the fins outside the pipeline, so that energy coupling is realized.

In this embodiment, on one side of the refrigerant, the refrigerant is driven to circulate by the compressor, and the refrigerant absorbs heat from the evaporator in the low-temperature air environment and releases heat from the condenser in the high-temperature air environment by high-efficiency phase change heat exchange of the refrigerant during circulation.

In this embodiment, the compressor chamber 4 is disposed on the side surfaces of the outer heat exchanger 2, the fan wall and the exhaust chamber 3, and is used for placing a fluorine circuit assembly including a compressor 41, a gas-liquid separator 42, a four-way valve, an expansion valve, an electric box and the like. The components of the refrigeration loop, the outer heat exchanger 2, the refrigerant connecting pipe, the indoor unit heat exchanger and the like form a refrigeration air-conditioning circulation loop according to the sequence of a compressor, a four-way valve, a condenser, an expansion valve, an evaporator, a four-way valve, a gas-liquid separator and a compressor; the compressor 41 is used as refrigeration cycle loop power, a high-low pressure state of the refrigerant is respectively established in the condenser evaporator pipeline, the refrigerant is driven to circularly flow and repeatedly change phase in the refrigeration cycle loop to realize heat transfer, namely, the refrigerant liquid evaporates and absorbs heat in the evaporator pipeline and absorbs heat of low-temperature ambient air flowing through fin gaps through a huge fin heat absorption area S of a copper pipe rising joint, the high-temperature high-pressure refrigerant gas condenses and releases heat in the condenser pipeline and releases heat to high-temperature ambient air flowing among fins through the huge fin heat release area S of the copper pipe rising joint, and heat transfer from the low-temperature environment of the air conditioner evaporator to the high-temperature environment of the condenser is realized.

Example 3

As shown in fig. 14, the physical structures of the rear external heat exchanger, the front fan and exhaust cavity and the side compressor cavity are adopted in the embodiment and the embodiment 2; this embodiment differs from embodiment 2 in that the outer heat exchanger 2 is a horizontal-section C-type fin tube heat exchanger.

Because the horizontal section C-shaped finned tube heat exchanger is adopted, the heat exchange area is larger, the air paths of the left and right rows of fans are also more symmetrically balanced, and the energy efficiency ratio of the air conditioner is higher.

Example 4

15-16, the physical structures of the rear external heat exchanger, the front fan and exhaust cavity and the side compressor cavity are adopted in the embodiment and the embodiment 1; the present embodiment is different from embodiment 1 in that the air outlet 31 of the air discharge chamber 3 is located in the middle of the air discharge chamber panel 32. The air outlet 31 is in the shape of a horizontal strip.

The present embodiment has all the advantages of embodiment 1, and the air outlet 31 of the horizontal strip rectangle is disposed in the horizontal middle of the air exhaust cavity panel 32, and the position is higher, so that the possible spatial interference between the lower edge of the air outlet 31 and the water blocking table 51 of the equipment platform 5 is avoided.

Example 5

As shown in fig. 17, the physical structures of the rear external heat exchanger, the front fan and exhaust cavity and the side compressor cavity are adopted in the embodiment and the embodiment 1; the present embodiment is different from embodiment 1 in that the air outlet 31 of the air discharge chamber 3 is located in the middle of the air discharge chamber panel 32. The air outlet 31 is a vertical strip rectangle.

This embodiment has all the advantages of embodiment 1, and the air outlet 31 of the horizontal strip rectangle is disposed in the vertical middle of the air exhaust cavity panel 32, and is suitable for the equipment platform 5 with the vertical strip slit decorative strip disposed on the outer vertical surface of the equipment platform.

Example 6

As shown in fig. 18, the physical structures of the rear external heat exchanger, the front fan and exhaust cavity and the side compressor cavity are adopted in the present embodiment and embodiment 1; the present embodiment is different from embodiment 1 in that the air outlet 31 of the air discharge chamber 3 is located at the lower portion of the air discharge chamber panel 32. The air outlet 31 is one of a vertical strip rectangle and a horizontal strip rectangle.

This embodiment has all the advantages of embodiment 1 and the air outlet 31 is provided in the lower part of the air discharge chamber panel 32, i.e. in a position close to or directly in connection with the floor of the air discharge chamber 3, i.e. the floor of the housing 1. The position of the air outlet 31 in this embodiment is favorable for discharging sundries, water and the like in the air exhaust cavity, and keeping the air exhaust cavity clean.

Example 7

19-21, the physical structures of the rear external heat exchanger, the front fan and exhaust cavity and the side compressor cavity are adopted in the embodiment and the embodiment 5; the present embodiment is different from embodiment 5 in that a dive exhaust section 33 is provided at the air outlet 31; a plurality of deflector plates 34 are arranged in the diving type exhaust section 33. The deflector plates 34 of the dive exhaust section 33 are parallel or nearly parallel to the louvers 52 of the equipment platform 5.

The deflector sheet 34 is used for restricting and inducing the direction of the exhaust air flow and is abutted against the outer vertical surface louver 52.

The small-area diving type air exhaust section, which is matched with the equipment platform outer elevation shutter on the air exhaust cavity panel of the air conditioner host machine, is of a vertical strip-shaped rectangular structure, and is vertically unfolded and arranged in the middle of the air exhaust cavity panel 32;

when the air conditioner main unit of the embodiment operates, the air exhaust air flow sent into the air exhaust cavity is boosted by the centrifugal fan, is ejected out from the small-area air outlet at a high speed (about 8 m/s), enters the diving type air exhaust section 33, under the constraint and induction of the plurality of flow guide plates 34 arranged in the diving type air exhaust section 33, the air exhaust air flow rays and the louver window are in parallel or nearly parallel states, the interception area of the louver window group to the air exhaust air flow is minimum, the interception resistance is minimum, the air exhaust air flow passes through the louver window group of the outer vertical face of the equipment platform and is discharged to the outside environment atmosphere at a high speed, and the long-range diffusion dilution is performed.

The air conditioning main unit of the present embodiment has all the advantages of embodiment 1/2/3, and the additional advantage of having the dive exhaust section 33 is that it has:

(1) perfect unification of outer elevation decoration and excellent thermal performance of air conditioner host machine is realized

The shutter has the functions of shielding wind, rain and preventing frost, rain and snow from corroding equipment platforms and air conditioner host equipment, an air conditioner host installation method for hiding the air conditioner host on the equipment platform by adopting the shutter is popularized and solidified, and the problems that the exhaust of the air conditioner host external heat exchanger 'back-in front-out' air path to the atmospheric environment outside a building is blocked and inhibited by the shutter, the static pressure of the exhaust is increased, the air quantity is reduced, and the heat exchange performance of the external heat exchanger is seriously attenuated are unavoidable;

In the embodiment, due to the arrangement of the diving type exhaust section 33 between the air conditioner host and the louver of the outer elevation of the equipment platform, the obstruction of the louver to the exhaust of the outer heat exchanger of the air conditioner host is eliminated, the air path of the outer heat exchanger is effectively penetrated, the thermal performance of the air conditioner host is ensured, the decoration of the outer elevation of the louver is maintained, and the perfect unification of the decoration of the outer elevation of the equipment platform, the visual effect of the outer elevation of a building and the excellent thermal performance of the air conditioner host is realized;

(2) the outer elevation air inlet area and the air exhaust area of the equipment platform are separated to block the backflow short circuit of exhaust air

The air-conditioning main unit exhaust cavity diving type exhaust section 33 is arranged in the middle of the vertical direction of the air-conditioning main unit shell panel and in the middle of the middle lower part of the outer vertical surface of the equipment platform;

when the air conditioner host on the equipment platform operates, the outer vertical face shutters corresponding to the two sides and the upper part of the air conditioner host form an air inlet area, the shutters corresponding to the small-area central vertical strip-shaped air outlet area on the panel of the air conditioner host form an air outlet area, and the air inlet area and the air outlet area are mutually separated to block backflow short circuit of air exhaust.

The air exhaust cavity diving type air exhaust section 33 of the embodiment is matched with a shutter window sheet group on the outer vertical surface of the equipment platform, and the air conditioner main unit external heat exchanger is smooth in air exhaust; the outer elevation of the equipment platform is used as a reference surface for measurement and calculation, the area of an air outlet of the air conditioner host is small and is obviously smaller than the area (less than 1/3) of an air inlet area of the outer elevation of the equipment platform, the air exhaust speed is more than 3 times that of the air inlet speed, the air exhaust dynamic pressure head on the outer elevation is more than 9 times that of the air inlet dynamic pressure head, the air exhaust air flow penetrates through the shutter of the outer elevation to penetrate into the atmosphere, the air range of the environment is far, the diffusion dilution effect is good, the thermal performance of the air conditioner host on the equipment platform is not reduced compared with the laboratory data, and the task of the air conditioner serving as a 'heat carrier' is completed with high quality and high efficiency.

(3) Convenient and fast installation on air conditioner host equipment platform

In the embodiment, a diving type exhaust section 33 is arranged at an air outlet of an exhaust cavity of the air conditioner main unit, and a plurality of flow guide plates are arranged in the diving type exhaust section; the air flow is restrained and induced to be parallel or nearly parallel with the louver plates by the flow guide plates, so that the effect that the louver plate group has minimum interception area and minimum interception resistance to the air flow is realized, the air flow passes through the louver plate group on the outer facade of the equipment platform and is discharged to the external environment at high speed, and the air flow is far in range in the environment and has good diffusion and dilution effects.

The installation of the air conditioner host on the equipment platform is extremely convenient and quick, and the air conditioner host is movably arranged until the diving type exhaust section 33 is close to the outer elevation shutter; the air conditioner main unit is close to, but not in contact with, the hard connection or soft connection between the diving type air exhaust section 33 and the shutter is not needed, the difficulty and the engineering amount of the installation and construction of the air conditioner main unit are reduced, and the amplification and diffusion of vibration noise of the air conditioner main unit in the shutter are also reduced in a hard connection mode.

Example 8

As shown in fig. 22, the air conditioner main unit of the present embodiment is the same as embodiments 1 to 7, and adopts a physical structure that an external heat exchanger is arranged at the rear, a fan and an exhaust cavity are arranged at the front, and a compressor cavity is arranged at the side;

The embodiment is different in that an intermediate heat exchanger 6 is arranged in a compressor cavity 4 of an air conditioner host, and two paths of heat exchange medium channels of the intermediate heat exchanger 5 are respectively a refrigerant channel and an air conditioner water channel;

the refrigerant channel is connected with a fluorine path of the air conditioner host; the air-conditioning water passage is connected to an air-conditioning indoor heat exchanger 44.

The air conditioner main unit of the embodiment produces cold water (hot water) through the intermediate heat exchanger 6 and transmits the cold water (hot water) to the air conditioner indoor unit for cooling and dehumidifying (heating) the indoor air; the intermediate heat exchanger 6 may be a plate heat exchanger, a shell and tube heat exchanger, a double tube heat exchanger or a combination thereof.

The present embodiment has all the advantages of embodiments 1 to 7, and the air conditioner host increases the output of air-conditioning water from the intermediate heat exchanger 6 to the indoor unit in the building to block the refrigerant on the corridor type equipment platform, thereby avoiding the risk of leakage and accumulation of the refrigerant in the building, and creating conditions for the air conditioner host to adopt the environment-friendly refrigerant with zero global warming effect and zero ozone layer destruction effect, such as R290, but with combustibility.

Example 9

26-27, the principle and the structure of the embodiment are the same as those of the embodiment 1, and the air inlet, the finned tube heat exchanger assembly, the negative pressure cavity, the fan wall and the exhaust cavity are arranged in a presenting mode, and the compressor cavity is arranged on the side.

The present embodiment is different in that: the outer heat exchanger 2 is a zigzag fold line type finned tube heat exchanger assembly formed by combining three flat plate type finned tube heat exchangers 37 and a partition plate 39; wherein, the two flat plate type finned tube heat exchangers 37 form a V-shaped finned tube heat exchanger 40, and the two flat plate type finned tube heat exchanger end plates can be connected to form a V-shaped finned tube heat exchanger, or a plurality of single-row tube flat plate type finned tube heat exchangers are bent into a V shape and then assembled to form a composite V-shaped finned tube heat exchanger; the other flat plate type finned tube heat exchanger 37 is independently arranged outside the V-shaped finned tube heat exchanger, a partition plate 39 is arranged between the other flat plate type finned tube heat exchanger and the V-shaped finned tube heat exchanger, and an exhaust cavity of the flat plate type finned tube heat exchanger is arranged between the partition plate 39 and the flat plate type finned tube heat exchanger and is communicated with a negative pressure cavity of the external heat exchanger.

The zigzag fold line type finned tube heat exchanger assembly is zigzag in cross section perpendicular to the long sides of the fins.

The finned tube copper tubes of the serrated fold line type finned tube heat exchanger assembly are parallel to the serrated edges; the fin plate group of the fin tube heat exchanger is orthogonally sleeved on the copper tube.

The zigzag fold line type finned tube heat exchanger assembly is combined with an upper bottom plate, a lower bottom plate, a left side plate and a right side plate to form an outer heat exchanger negative pressure cavity 22.

The finned tube copper tubes are parallel or basically parallel to the upper bottom plate and the lower bottom plate and are in oblique relation with the left side plate and the right side plate.

The zigzag fold line type finned tube heat exchanger assembly divides a heat exchange air duct into a front cavity and a rear cavity, the front cavity is an air inlet cavity, the rear cavity is communicated with an air suction port of the fan set, and the rear cavity is an outer heat exchanger negative pressure cavity 22;

the finned tube copper tubes form obtuse angles with the side walls of the negative pressure cavities 22 of the adjacent external heat exchangers.

In the embodiment, as the three-piece zigzag folding line type finned tube heat exchanger assembly with the V+1 structure is adopted, compared with a single V-shaped finned tube heat exchanger, the heat exchange area is enlarged, and the requirement of an air conditioning system with larger refrigerating capacity is met.

Example 10

As shown in fig. 23-25, an air conditioner host device platform is provided, in which an air conditioner host is disposed, and an air outlet 31 of an air exhaust chamber 3 faces an outer elevation of the outer corridor type device platform.

The air conditioner main unit of the embodiment is similar to the embodiment 4, and adopts a physical structure that an external heat exchanger is arranged at the rear, a fan and an exhaust cavity are arranged at the front and a compressor cavity is arranged at the side; the air conditioner main unit of the present embodiment is different from embodiment 4 in that the air outlet 31 is a horizontal strip-shaped rectangular air outlet, and the air outlet 31 is provided with a horizontal strip-shaped rectangular outer convex air exhaust section 35 adapted to the shape of the air outlet; a plurality of deflector plates 34 are arranged in the convex exhaust section 35.

The shutter 52 of the outer corridor type equipment platform 5 is provided with an opening structure 36 matched with the outer convex type exhaust section 35 positioned in the middle or lower part of the exhaust cavity 3. The outer convex exhaust section 35 at the middle or lower part of the exhaust chamber 3 is embedded into the opening structure 36 of the louver 52. When the air conditioner main unit is in operation, the exhaust air of the air outlet 31 passes through the opening structure of the shutter to directly exhaust the ambient atmosphere.

The present embodiment has all the advantages of embodiment 4, and since the frame of the outer convex air exhaust section 35 and the air guide plate 34 embedded in the opening structure 36 of the shutter are not hidden behind the shutter, but the straight external environment becomes a part of the outer vertical surface of the visible equipment platform, the frame of the outer convex air exhaust section 35 and the air guide plate 34 have decoration, so that the structure change and the color change of the shutter of the outer vertical surface of the equipment platform are increased, and a better decorative visual effect is achieved; the outer convex air exhaust section 35 embedded in the shutter and the opening structure 36 of the shutter can be suspended in the opening structure 36 of the shutter or flexibly connected with the opening structure of the shutter without rigid connection, so as to avoid the transmission and amplification of the noise of the air conditioner host.

Example 11

As shown in fig. 28-31, in this embodiment, a compressor chamber of a front fan wall is arranged outside a negative pressure chamber of an external heat exchanger, that is, the compressor chamber is arranged laterally, a vertically strip-shaped air outlet 31 is communicated with a lateral air exhaust section 35, a lateral air exhaust section 35 is internally provided with a lateral air guide plate group, and air guide plates 34 are vertically arranged and provided with angles for guiding the air exhaust air flow to deviate from the air conditioner, that is, the air guide plate group is directed at one end opposite to the compressor chamber at a small angle;

The front-mounted fan wall lateral exhaust air flow lateral drifting air conditioner host equipment platform is provided with a shutter 52 on the outer vertical face, and a vertical strip-shaped opening structure 36 capable of freely accommodating the lateral exhaust section of the air conditioner host is reserved on the shutter 52 close to the side wall; when the air conditioner host is installed, the lateral exhaust section of the air conditioner host is embedded into a vertical strip-shaped opening structure 36 reserved in the shutter;

when the front-mounted fan wall lateral exhaust airflow lateral drifting jet air conditioner host equipment platform operates, the air conditioner host positive pressure exhaust cavity discharges air into the lateral exhaust section 35 at a high speed after heat exchange, the exhaust airflow lateral drifting jet is seen from the horizontal direction under the constraint and induction of the flow guide plate sheet group in the lateral exhaust section 35, the exhaust airflow is separated from the space right in front of the equipment platform, the exhaust airflow is prevented from flowing back to the local equipment platform, and meanwhile, the exhaust airflow is prevented from being sucked by the lower adjacent equipment platform (winter) or the upper adjacent equipment platform (summer) after being discharged from the equipment platform. And when seen from the vertical direction, the air-conditioning main machine exhaust air flow of a plurality of layers of equipment platforms of the building is horizontally emitted in a small-angle lateral direction in the horizontal plane, then is gathered in the vertical direction of the outer space at the rear side of the compressor cavity of the air-conditioning main machine, hot air flow moves upwards in summer, cold air flow moves downwards in winter, and is separated from the vertical space of the equipment platforms, and is diffused and diluted away from the equipment platforms.

When the external heat exchanger of the air conditioner host machine in winter (summer) ventilates the environment, the external elevation of the equipment platform has the positive pressure high-speed external air exhaust of a small area air exhaust area and the micro negative pressure low-speed suction of the environment air of a large area air inlet area, so that the phenomenon that the external air exhaust is diffused and diluted in the atmosphere and the external elevation of the air exhaust and reflux is carried out after the partial dilution is carried out, and the problem of the performance degradation of the air conditioner host machine is caused by the attachment of cold (hot) air of the external elevation of the equipment platform:

in winter, cold air discharged by the outer heat exchanger of the air conditioner of each layer of equipment platform is diffused and diluted in front of the outer vertical surface of the outer heat exchanger and partially flows back, the whole cold air discharged by the existing multi-layer equipment platform moves downwards and converges in a vertical direction, the cold air is connected end to end, beads are connected in a chain, the more the strings are, the outer vertical surface of the equipment platform is covered, so that the air conditioner host of the lower layer of equipment platform sucks the cold air discharged by the air conditioner host of the upper layer of equipment platform, the evaporation temperature is reduced, the circulation quantity of the refrigerant is reduced, and the heating performance of the air conditioner host is deteriorated;

in summer, hot air discharged by the outer heat exchanger of the air conditioner of each layer of equipment platform is diffused and diluted in front of the outer vertical surface of the outer heat exchanger and partially flows back, the whole hot air discharged by the existing multi-layer equipment platform moves upwards and converges in a vertical direction, the hot air is connected end to end, beads are connected in a chain, the more the strings are, the outer vertical surface of the equipment platform is covered, so that the air conditioner host of the upper layer of equipment platform sucks the hot air discharged by the air conditioner host of the lower layer of equipment platform, the condensation temperature is raised, the supercooling degree of condensate is reduced, and the refrigerating performance of the air conditioner is deteriorated;

In this embodiment, under the constraint and induction of the flow guide plate group in the lateral exhaust section, the air after heat exchange of the air conditioning main machine in each layer flows to the outside space at the rear side of the compressor cavity of the air conditioning main machine at a high speed in a lateral direction, and exhaust air flows are separated from the space right in front of the equipment platform, so that the exhaust air flows are stopped from flowing back to the local equipment platform, and the risk that the exhaust air flows are sucked by the lower adjacent equipment platform (winter) or by the upper adjacent equipment platform (summer) after being discharged from the local equipment platform is stopped.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (14)

1. The air conditioner main unit adopting the small-area air outlet of the air exhaust cavity of the front fan wall is characterized by comprising a shell, an outer heat exchanger arranged in the shell, an outer heat exchanger negative pressure cavity formed by the outer heat exchanger, a part of the shell and a back plate, and an air exhaust cavity; the back plate is provided with a plurality of air outlets of the negative pressure cavities of the external heat exchangers, the air outlets are provided with fans, and the air outlets of the air outlets are positioned on an air outlet cavity panel opposite to the fans; the air inlet, the outer heat exchanger, the negative pressure cavity, the fan, the exhaust cavity and the air outlet of the air conditioner host form an air inlet and outlet path with progressive layout of the rear-mounted outer heat exchanger and the front-mounted fan and exhaust cavity.

2. The air conditioning main unit adopting the small-area exhaust outlet of the exhaust cavity of the front-mounted fan wall according to claim 1, wherein the external heat exchanger is one of a horizontal-section C-shaped finned tube heat exchanger, a horizontal-section L-shaped finned tube external heat exchanger, a horizontal-section V-shaped finned tube heat exchanger assembly or a zigzag folding-line-shaped finned tube heat exchanger assembly.

3. The air conditioner main unit adopting the small-area air outlet of the exhaust cavity of the front-mounted fan wall according to claim 2, wherein the horizontal section V-shaped finned tube heat exchanger assembly comprises at least 2 flat plate type finned tube heat exchangers; or the V-shaped finned tube heat exchanger is formed by bending a flat plate type finned tube heat exchanger; or consists of a flat plate type finned tube heat exchanger and a V-shaped finned tube heat exchanger formed by bending the flat plate type finned tube heat exchanger; the cross section of the horizontal section V-shaped finned tube heat exchanger assembly perpendicular to the long sides of the fins is a folded line type.

4. The air conditioner main unit adopting the small-area exhaust port of the exhaust cavity of the front-mounted fan wall according to claim 3, wherein the zigzag broken-line type finned tube heat exchanger assembly is formed by combining a flat plate type finned tube heat exchanger, a V-shaped finned tube heat exchanger and a partition plate; the zigzag fold line type finned tube heat exchanger assembly is zigzag in cross section perpendicular to the long sides of the fins.

5. The air conditioner main unit adopting a small-area air outlet of an exhaust cavity of a front fan wall according to claim 1, wherein the back plate is provided with at least 2 air outlets; a fan is arranged at each air outlet to form a fan wall; preferably, the fan adopts a centrifugal fan or an axial flow fan; further preferably, the centrifugal fan is a backward inclined outer rotor centrifugal fan.

6. The air conditioner main unit adopting the small-area air outlet of the exhaust cavity of the front fan wall according to claim 1, wherein the air outlet area of the exhaust cavity is 15-60% of the air inlet surface area of the negative pressure cavity of the external heat exchanger.

7. The air conditioner main unit adopting the small-area exhaust port of the exhaust cavity of the front-mounted fan wall according to claim 6, wherein the air outlet of the exhaust cavity is positioned in the middle or lower part of the panel of the exhaust cavity; preferably, the air outlet comprises a horizontal strip-shaped or vertical strip-shaped air outlet which is arranged in the middle or lower part of the air exhaust cavity panel.

8. The air conditioner main unit adopting a small-area air outlet of an air exhaust cavity of a front fan wall according to claim 6, wherein an air exhaust section is arranged at the air outlet.

9. The air conditioner main unit adopting the small-area exhaust port of the exhaust cavity of the front-mounted fan wall according to claim 6, wherein a plurality of flow guide plates are arranged in the exhaust section; the air guide plate sheet is parallel to or nearly parallel to the shutter sheets, or the air guide plate sheet is vertically arranged and provided with an angle for guiding the exhaust air flow to deviate from the air conditioner host.

10. The air conditioning main unit using the small area exhaust port of the exhaust cavity of the front blower wall according to claim 1, wherein the negative pressure cavity of the external heat exchanger and the side surface of the exhaust cavity are provided with a compressor cavity for placing a fluorine circuit assembly comprising a compressor, a gas-liquid separator, a four-way valve, an expansion valve and an electric box.

11. The air conditioner main unit adopting the small-area air outlet of the exhaust cavity of the front-mounted fan wall according to claim 1, wherein the air conditioner main unit is further provided with an intermediate heat exchanger, and two paths of heat exchange medium channels of the intermediate heat exchanger are respectively a refrigerant channel and an air conditioner water channel of the air conditioner main unit; the refrigerant channel is connected with a fluorine path of the air conditioner host; the air conditioner water channel is connected with an air conditioner indoor heat exchanger.

12. An air conditioner host equipment platform, characterized in that the air conditioner host according to any one of claims 1 to 11 is arranged in the outer corridor type equipment platform, and an air outlet of the air exhaust cavity faces to an outer vertical surface of the outer corridor type equipment platform.

13. The air conditioner host device platform of claim 12, wherein an exhaust section is provided at the air outlet; the exhaust section is arranged adjacent to the outer vertical face shutter of the outer corridor type equipment platform.

14. The air conditioner host device platform of claim 12, wherein an exhaust section is provided at the air outlet; an opening structure matched with an exhaust section positioned in the middle or lower part of the exhaust cavity is arranged on the outer elevation shutter of the outer corridor type equipment platform; the exhaust section at the middle part or the lower part of the exhaust cavity is embedded into the shutter opening structure.