Air conditioner host and equipment platform thereof

Abstract

The invention relates to the technical field of green energy conservation, and discloses an air conditioner host and an equipment platform thereof. An air outlet of the air conditioner host is formed in the third back plate of the air exhaust cavity in the different direction and / or on the different side of the main air inlet of the air inlet cavity of the shell, or the air outlet of the air exhaust cavity is formed in the second back plate of the air exhaust cavity opposite to the air inlet of the air exhaust cavity; the direction of an air suction opening of the fan and the main air outlet direction of the external heat exchanger are orthogonally arranged or approximately orthogonally arranged, so that an airflow volute chamber between an air outlet of the external heat exchanger and the air suction opening of the fan in the negative pressure cavity is constructed; the compressor cavity and the exhaust cavity are arranged on the outer side of the same side plate of the negative pressure cavity side by side. By constructing an airflow volute chamber between an air outlet of the heat exchanger and an air suction opening of the fan, the thickness of the main unit is further reduced, a structure-intensive wall-attached air conditioner main unit can be manufactured, and structural fusion, air path fusion and energy coupling of the air conditioner main unit and the outer vertical face of the equipment platform are promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of green energy saving, and in particular to an air conditioner host and an equipment platform thereof. Background Art

[0002] like Figure 1-2 As shown, the prior art patents such as an air conditioner mainframe with vertically arranged fans and its equipment platform (application number 202310972409.9) and a serrated zigzag fin tube heat exchanger assembly and its air conditioner mainframe and equipment platform (application number 202311012468.8) creatively proposed the technical concept of air path coupling and energy coupling between the air conditioner mainframe and the facade decoration structure, and adopted the explicit external heat exchanger inlet and outlet duct built-in technology of the air conditioner mainframe and the zigzag fin tube external heat exchanger fin planer to implement step-by-step planing and low-speed air distribution technology for the inlet airflow, which subversively reorganized the internal structure of the air conditioner mainframe and the structural relationship between the air conditioner mainframe and the facade of the equipment platform, and has outstanding substantial characteristics and significant progress:

[0003] The above-mentioned prior art adopts an aerodynamic layout of medium-speed air intake in the middle and upper part of the short side of the air-conditioning main unit and high-speed exhaust at the bottom, and incorporates the main sections of the air inlet channel and exhaust channel of the fin-tube heat exchanger assembly into the interior of the air-conditioning main unit; this group of inventions uses the horizontal V-shaped fin-tube heat exchanger of the heat exchange tube as the basic unit of the fin-tube heat exchanger assembly of the air-conditioning main unit, and in the limited space of the air-conditioning main unit, the horizontal V-shaped fin-tube heat exchanger of the heat exchange tube is continuously arranged parallel to the air inlet surface direction of the air inlet of the air-conditioning main unit, and is unfolded close to the air inlet surface of the horizontal V-shaped fin-tube heat exchanger of the heat exchange tube to obtain a large-area ventilation surface of the fin-tube heat exchanger assembly, and is unfolded again on the ventilation surface of the large-area fin-tube heat exchanger assembly to obtain a huge area of ​​fin heat transfer surface.

[0004] The external airflow of the air-conditioning main unit of this group of inventions enters the air-conditioning main unit at a medium speed of about 4m / s, and is continuously and step-by-step planed by multiple fin planers inside the air-conditioning main unit. The main air intake airflow is decelerated and dispersed, and passes through the fin-tube heat exchanger assembly with the characteristics of large total ventilation surface and huge total heat exchange area of ​​fins at low speed and low resistance for heat exchange. After heat exchange, it flows into the negative pressure cavity of the heat exchanger assembly, and is gathered to the fan inlet under the traction of the negative pressure of the fan. After being accelerated and pressurized by the fan, it enters the vertical (or lateral) exhaust cavity and is finally discharged from the bottom (or side) horizontal exhaust cavity at a high speed of about 7m / s, and is injected into the ambient atmosphere for diffusion and dilution.

[0005] This group of inventions effectively constructs a high-efficiency heat exchange air path structure for the fin-tube heat exchanger assembly of the air-conditioning main unit, improves the volume energy density of the air-conditioning main unit, increases the lateral energy line density of the equipment platform, and promotes the structural coupling, air path coupling, and energy coupling between the air-conditioning main unit and the facade of the equipment platform.

[0006] After the above inventions, in the process of continuous research and development of wind path coupling energy coupling technology between the air conditioner main unit and the facade decoration structure, built-in technology for explicit inlet and outlet air ducts of the external heat exchanger, and low-speed air distribution technology using a fin planer to implement step-by-step planing of the inlet airflow in the zigzag fin tube external heat exchanger assembly, a patent application for an air conditioner main unit and its equipment platform with an exhaust air bag (application number 202410858895.6) was further optimized to develop the "exhaust air bag" technology. The key points of its innovation are:

[0007] The air-conditioning main unit is provided with an exhaust cavity and a fan, the exhaust port of the exhaust cavity is connected to the exhaust section, and the exhaust cavity and the exhaust section constitute an exhaust air bag; the exhaust section is a tapered exhaust section with a gradually decreasing exhaust flow cross-sectional area, so that the flow cross-section of the aggregated airflow in the exhaust cavity is significantly larger than the exhaust port cross-section of the exhaust cavity; further, the first exhaust port of the exhaust section is a wedge-shaped exhaust port; the wedge-shaped exhaust port is a vertical strip exhaust port or a horizontal strip exhaust port; further, the first exhaust port of the exhaust section is set at an angle deviating from the air-conditioning main unit where the exhaust air bag is set; further, the exhaust port of the exhaust cavity is provided with a perforated plate for throttling the exhaust airflow, and preferably, the perforated plate is a metal wire mesh.

[0008] The above-mentioned air-conditioning host technology using exhaust air bags is an extension and innovation of the three major technologies of "wind path coupling energy coupling technology, explicit built-in technology of inlet and outlet air ducts, and fin planer step-by-step planing of inlet air flow deceleration and air distribution". Its outstanding substantive features and significant technological advances are: it provides space for exhaust air flow deceleration, pressure boosting, noise reduction, and reorganization; it optimizes the structure of the air-conditioning host; and it creates conditions for the air path structure of the air-conditioning host to be integrated into the equipment platform blinds.

[0009] However, in promoting the application of the above three technologies, there are still some important process and technical issues.

[0010] For example, the volume of the air-conditioning host body has become larger: the above-mentioned patents all change the inlet and outlet air routes of the external heat exchanger of the traditional air-conditioning host from being set outside the host body to being set inside the host body, and cancel the air inlet ducts reserved on both sides and the rear side of the traditional air-conditioning host position on the equipment platform, effectively solving the structural coupling, air route coupling, and energy coupling problems between the external heat exchanger of the host and the facade decorative structure of the equipment platform; overall, the above-mentioned patents have improved the operating efficiency of the external heat exchanger air route, and from the perspective of the overall actual space resources occupied by the "air-conditioning host + inlet and outlet air ducts", the above-mentioned patents have indeed reduced the floor space of the air-conditioning host; however, after the inlet and outlet air routes of the air-conditioning host are changed from the traditional external to the internal, the visual effect of the structure and volume of the new air-conditioning host has become "very large". There are two main root causes: first, the external heat exchanger air duct structure has changed from "implicit" around the traditional air conditioner to "explicit" on the new machine body, which has led to an inflated structure and volume of the host machine; second, in order to prevent the built-in external heat exchanger air duct from having a high air flow velocity, increased resistance, and increased fan energy consumption, the air-conditioning system designers and structural designers chose not to reduce or even expand the flow cross-sectional area of ​​the built-in air duct as much as possible, which further led to the built-in external heat exchanger inlet and outlet air ducts occupying a "large" amount of internal space resources of the host machine.

[0011] In an air-conditioning host and its equipment platform with a vertically arranged fan in the prior art (application number 202310972409.9), the total volume of the air inlet duct before the external heat exchanger built into the air-conditioning host, the vertical exhaust duct after the external heat exchanger, and the horizontal exhaust duct even exceeds the volume of the traditional air-conditioning host body with external inlet and outlet ducts.

[0012] How to promote the coupling of the air conditioning host and the equipment platform's facade structure, air path coupling, and energy coupling in practice, while maintaining the technical advantages of the explicit built-in external heat exchanger inlet and outlet air ducts and the technical characteristics of the zigzag external heat exchanger fin planing to implement deceleration and air distribution, while greatly reducing the structure and volume of the external heat exchanger inlet and outlet air ducts of the air conditioning host is a major and complex task. Summary of the invention

[0013] In order to solve the above-mentioned problems in the prior art, the present invention provides an air conditioner host.

[0014] Another object of the present invention is to provide a device platform.

[0015] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0016] An air conditioner host comprises a shell, a negative pressure chamber, an exhaust chamber, a compressor chamber, an external heat exchanger and a fan;

[0017] The compressor chamber and the exhaust chamber are arranged side by side on the outside of the same side plate of the negative pressure chamber;

[0018] The air intake direction of the fan is orthogonal or nearly orthogonal to the main air outlet direction of the external heat exchanger, thereby constructing an air flow vortex chamber between the air outlet of the external heat exchanger and the air intake direction of the fan in the negative pressure chamber.

[0019] Preferably, the exhaust port of the exhaust cavity is arranged on the third back plate of the exhaust cavity in a direction opposite to and / or on a side opposite to the main air inlet of the air inlet cavity of the housing.

[0020] The air outlet of the fan in the exhaust cavity is directly opposite to the exhaust port of the exhaust cavity; and the exhaust port of the exhaust cavity is a vertical strip exhaust port.

[0021] Preferably, the exhaust outlet of the exhaust chamber is arranged on the second back plate of the exhaust chamber opposite to the air inlet of the exhaust chamber, and a small area exhaust outlet is arranged; preferably, the small area exhaust outlet is arranged at the bottom of the second back plate, and the small area exhaust outlet is a horizontal strip exhaust outlet; preferably, the small area exhaust outlet is arranged in the middle and upper part of the second back plate, and the small area exhaust outlet is a rectangular or diamond-shaped exhaust outlet; preferably, the small area exhaust outlet is arranged in the horizontal middle part of the second back plate, and the small area exhaust outlet is a vertical strip exhaust outlet.

[0022] The small area means that the area of ​​the air outlet is 10% to 30% of the area of ​​the second back plate.

[0023] Preferably, the asymmetrical arrangement is such that the air outlet and the air inlet are oriented in different directions, for example, the air inlet is arranged on the long side of the shell, and the air outlet is arranged on the short side of the shell.

[0024] The air outlet and the air inlet are arranged on the opposite sides in the same direction, for example, the air outlet and the air inlet are both arranged on the short side of the shell.

[0025] Furthermore, the fan is a backward centrifugal fan; the area of ​​the exhaust surface of the outer periphery of the fan impeller is 2 to 8 times the area of ​​the air intake port of the fan.

[0026] Furthermore, the external heat exchanger is arranged in the air inlet cavity of the shell.

[0027] Furthermore, the external heat exchanger consists of a heat exchange tube and a metal fin sleeved on the heat exchange tube; the heat exchange tube is a heat exchange pipeline for carrying refrigerant transport and heat exchange, and is selected from any one of a copper tube, an aluminum tube, an iron tube, a titanium tube, a stainless steel tube, and an alloy tube.

[0028] The structure of the external heat exchanger includes an I-shaped finned tube heat exchanger, an L-shaped finned tube heat exchanger, and an M-shaped finned tube heat exchanger, an N-shaped finned tube heat exchanger, and a V-shaped finned tube heat exchanger formed by combining the I-shaped finned tube heat exchanger.

[0029] Furthermore, the heat exchange tube I-type fin tube heat exchanger is arranged in the air inlet cavity of the shell, and forms a certain angle α with the main air inlet surface of the air inlet cavity of the shell.

[0030] Preferably, the angle α is an acute angle.

[0031] More preferably, the angle α is 15°-70°.

[0032] Preferably, the backward centrifugal fans may be provided in 2-6 pieces, and each backward centrifugal fan is arranged in the same row in the exhaust chamber.

[0033] Furthermore, the heat exchange tube V-shaped finned tube heat exchanger is an asymmetric heat exchange tube V-shaped finned tube heat exchanger with unequal lengths of heat exchange tubes on both sides, and is composed of two heat exchange tube I-shaped finned tube heat exchangers with different lengths;

[0034] Among them, the long heat exchange tube I-shaped fin tube heat exchanger is close to the outer side plate of the shell; the short heat exchange tube I-shaped fin tube heat exchanger is close to the first side plate of the exhaust cavity.

[0035] Furthermore, the air inlet cavity of the shell is also provided with an air supply slit; the air supply slit is arranged on the outer side plate of the shell close to the long heat exchange tube I-shaped fin tube heat exchanger.

[0036] Furthermore, the air suction port and the air guide panel of the fan are wedged into the negative pressure cavity, and part of the space of the compressor cavity is wedged into the negative pressure cavity.

[0037] Furthermore, a plurality of guide plates perpendicular to the front panel are provided on the inner side of the front panel where the main air inlet is arranged, so as to distribute air to the external heat exchanger in sections.

[0038] Preferably, the fan includes an impeller bracket, an impeller, and an impeller back cover, the impeller bracket is connected to the impeller through the impeller back cover and is installed at the air inlet of the exhaust cavity; the axial air inlet surface of the fan overlaps with the air inlet of the exhaust cavity, the radial air exhaust surface of the fan is arranged in the exhaust cavity, and the area of ​​the radial air exhaust surface of the fan is larger than the area of ​​the axial air inlet surface.

[0039] Preferably, a fluorine circuit assembly including a compressor, a gas-liquid separator, an expansion valve and an electrical box is arranged in the compressor cavity.

[0040] Preferably, the negative pressure chamber is a cavity having a one-way air inlet or a multi-way air inlet, and is composed of a side plate, a top plate, and a bottom plate of a shell.

[0041] A device platform is provided with the air-conditioning host.

[0042] Furthermore, at least one side of the facade of the equipment platform is provided with a vertical strip exhaust port, and the facade is also provided with a main decorative structure; the vertical strip exhaust port on the third back plate of the exhaust cavity points to the vertical strip exhaust port on one side of the facade.

[0043] Furthermore, the vertical strip exhaust vents of the equipment platform include a metal mesh and / or a metal column group;

[0044] The main decorative structure of the equipment platform facade includes a metal column group, shutters, and / or a ventilation structure with a garden door, a classical entrance door, a landscape painting shape, and a ventilation structure with narrow strip decorative panels staggered front and back to leave a longitudinal gap between the panels.

[0045] Furthermore, a small-area exhaust port in a rectangular, diamond or vertical strip shape is arranged in the middle or lower-middle part of the facade of the equipment platform, and a main decorative structure is also arranged on the facade; the small-area exhaust port in a rectangular, diamond or vertical strip shape on the second back plate of the exhaust cavity faces the small-area exhaust port in a rectangular, diamond or vertical strip shape in the middle or lower-middle part of the facade.

[0046] Furthermore, the small-area air outlet arrangement of the exterior facade includes a metal mesh, a metal column group and / or a hollow structure pattern;

[0047] The main decorative structure includes a metal column group, shutters and / or a ventilation structure with a garden door, a classical entrance door, a landscape painting shape, and a ventilation structure with narrow strip decorative panels staggered front and back to leave a longitudinal gap between the panels.

[0048] Furthermore, a horizontal strip exhaust port is arranged at the bottom of the facade of the equipment platform, and a main decorative structure is also arranged on the facade; the exhaust port on the second back plate of the exhaust cavity faces the horizontal strip exhaust port at the bottom of the facade.

[0049] Furthermore, the horizontal strip-shaped air outlets on the facade are provided with a metal mesh and / or a metal column group;

[0050] The main decorative structure includes a metal column group, shutters and / or a ventilation structure with a garden door, a classical entrance door, a landscape painting shape, and a ventilation structure with narrow strip decorative panels staggered front and back to leave a longitudinal gap between the panels.

[0051] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0052] ①Structural intensive air conditioning host

[0053] While maintaining the technical advantages of the built-in air duct of the external heat exchanger and the technical characteristics of the fin planer step-by-step planing of the inlet air flow to implement deceleration and air distribution, the present invention constructs an air flow vortex chamber between the air outlet of the heat exchanger and the air intake of the fan by orthogonally arranging the air intake direction of the air conditioner host fan and the air outlet direction of the heat exchanger; and transforms the air flow vortex chamber into a structural conversion zone and a functional conversion zone on the air path of the external heat exchanger, and transforms it into a spatial chamber for buffering, adjusting, homogenizing, and reorganizing the air flow of the external heat exchanger;

[0054] The present invention also eliminates the vertical exhaust cavity of the air conditioner host in the background technology by setting an air flow vortex chamber and adjusting the spatial relationship between the negative pressure cavity of the air inlet cavity and the exhaust cavity, thereby reducing the longitudinal depth of the air conditioner host, and can be installed on the equipment platform by attaching the wall to the ground or by attaching the wall to the hanging installation;

[0055] The present invention also greatly reduces the size, structure and volume of the air conditioner main unit by arranging the compressor chamber and the centrifugal fan chamber in the rear row and side by side, thereby greatly reducing the longitudinal exhaust chamber outside the fan or even returning it to zero.

[0056] ②High level protection of external heat exchanger

[0057] Traditional air conditioner mainframes are difficult to set up effective fin tube safety protection devices because of the multi-faceted and large-area air intake. The fins of the fin-tube heat exchanger and the regional heat exchange function attenuation caused by external force have become common problems.

[0058] The present invention couples the air conditioner mainframe to arrange the fin-tube external heat exchanger in the heat exchanger shell, and the shell provides a high level of protection for the fin-tube heat exchanger, thereby preventing the fins from falling over and the regional heat exchange function from being attenuated.

[0059] The present invention aims to overcome the problem that it is difficult to set up an air inlet filter device in a traditional air conditioner host due to multi-faceted air inlet and large-area air inlet. The air inlet of the external heat exchanger is highly centralized and unified, so that filters can be centrally set at the air inlet to intercept mosquitoes and suspended matter, and the filter cleaning is convenient.

[0060] ③ Promote the structural coupling, wind path coupling and energy coupling between the air-conditioning host and the building facade

[0061] The present invention greatly reduces the structure and volume of the inlet and outlet air ducts of the external heat exchanger built into the air conditioner host, fully develops the space resources of the equipment platform itself, promotes large-area low-speed air intake on the facade of the equipment platform, and promotes the integration of the air intake duct space and the free operation and maintenance space of the equipment platform;

[0062] The structurally intensive air-conditioning main unit of the present invention, in which the air suction port of the fan and the air outlet of the heat exchanger are orthogonally arranged, is not only suitable for residential buildings, but also more suitable for installation on the balcony side walls of school student dormitories, corporate employee dormitories, and LoFT apartments. When in operation, the air-conditioning main unit guides the exhaust air flow toward the ambient atmosphere along the balcony side wall, thereby facilitating structural coupling, wind path coupling, and energy coupling between the air-conditioning main unit and the facades of residential and apartment buildings.

[0063] ④ High energy efficiency of air conditioning system

[0064] The present invention adjusts the local resistance of the airflow in each area of ​​the air outlet section of the heat exchanger by adjusting the cross-sectional size of the air inlet, the angle of the fin tube, and the angle of the airflow inlet and outlet fin gap, so as to balance the total resistance and achieve uniform ventilation and heat exchange of the fin tube heat exchanger.

[0065] The air conditioner host of the present invention uses a backward centrifugal fan in the equipment platform scenario to efficiently penetrate the air path of the external heat exchanger, solving the problem that the air outlet of the traditional side-outlet air conditioner host is blocked by the decorative structure of the equipment platform facade, the exhaust static pressure increases, the air volume decreases, and part of the reduced air volume has a short-circuit backflow, resulting in serious deterioration of the air conditioning performance. The actual field performance of the air conditioning system reaches the laboratory data level, and the function of the air conditioning system as a "heat transporter" is fully realized;

[0066] The present invention promotes the structural integration, air path integration and energy coupling of the air-conditioning mainframe and the equipment platform facade. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0068] Figure 1 It is a structural schematic diagram of an air-conditioning main unit with a vertically arranged fan in the background technology;

[0069] Figure 2 It is a structural schematic diagram of an air conditioner main unit provided with an exhaust air bag in the background technology;

[0070] Figure 3 is a schematic structural diagram of a backward-facing outer rotor centrifugal fan impeller in Example 1;

[0071] Figure 4 is a schematic structural diagram of a backward-facing outer rotor centrifugal fan module of Example 1;

[0072] Figure 5It is a three-dimensional view of a structurally intensive air conditioning host in Example 1, in which the direction of the air intake of the fan is orthogonal to the air outlet direction of the heat exchanger;

[0073] Figure 6 It is a three-dimensional perspective view of a structurally intensive air conditioning host in which the air intake direction of the fan and the air outlet direction of the heat exchanger are arranged orthogonally in Example 1;

[0074] Figure 7 It is a vertical cross-sectional view of a structurally intensive air conditioning host in which the direction of the air intake of the fan and the air outlet direction of the heat exchanger are arranged orthogonally in Example 1;

[0075] Figure 8 It is a top view of the structure of the compact air conditioner main unit in which the air intake of the fan and the air outlet of the heat exchanger are arranged orthogonally in Example 1;

[0076] Fig. 9 It is a top view of the air flow operation of the air conditioner main unit in Example 1 where the air intake of the fan and the air outlet of the heat exchanger are arranged orthogonally;

[0077] Fig.10 It is a partial enlarged view of the airflow operation characteristics of the fin-tube heat exchanger in Example 1;

[0078] Fig.11 It is a top view of the airflow operation of the structural intensive air conditioner host using air supply slits in Example 2;

[0079] Fig.12 A top view of the structure of the air conditioner main unit in Embodiment 3, in which a plurality of guide plates perpendicular to the front panel are arranged on the inner side of the front panel of the air conditioner main unit to transform the front panel into a low-speed air inlet surface of the air conditioner main unit;

[0080] Fig.13 A top view of the air flow operation of the air conditioner main unit in Embodiment 3, in which a plurality of guide plates perpendicular to the front panel are arranged on the inner side of the front panel of the air conditioner main unit to transform the front panel into a low-speed air inlet surface of the air conditioner main unit;

[0081] Fig.14 4 is a top view of the structure of the compact air conditioner main unit with asymmetric design;

[0082] Fig.15 This is a top view of the airflow operation of the structure-intensive air-conditioning host with asymmetric design in Example 4;

[0083] Fig.16 It is a top view of the structure of the air conditioner main unit in Example 5, in which the air outlet direction of the heat exchanger is arranged orthogonally to the air suction direction of the fan and the air outlet is arranged as a low-position strip air outlet;

[0084] Fig.17 It is a vertical cross-sectional view of the air conditioner mainframe structure in Example 5, in which the air outlet direction of the heat exchanger is arranged orthogonally to the air suction direction of the fan and the air outlet is arranged as a low-position strip-shaped air outlet;

[0085] Fig.18 It is a top view of the air flow of the air conditioner main unit in Example 5, in which the air outlet direction of the heat exchanger is arranged orthogonally to the air suction direction of the fan and the air outlet is arranged as a low-position strip air outlet;

[0086] Fig.19 This is a front view of the air flow of the air conditioner main unit in Example 5, in which the air outlet direction of the heat exchanger is arranged orthogonally to the air suction direction of the fan and the air outlet is arranged as a low-position strip air outlet;

[0087] Fig. 20 This is a schematic diagram of an equipment platform using a three-chamber household-type coupled central air-conditioning host in Example 6;

[0088] Fig.21 This is a top view of the airflow running on the equipment platform of Example 6 using a three-chamber household-type coupled central air-conditioning host. DETAILED DESCRIPTION

[0089] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the described embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0090] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. "First", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0091] Example 1

[0092] like Figure 3-10 As shown, this embodiment discloses an air conditioner host, including a housing 1, a negative pressure chamber 2, an exhaust chamber 3, a compressor chamber 4, an external heat exchanger 5 and a fan 6;

[0093] The compressor chamber 4 and the exhaust chamber 3 are arranged side by side on the outer side of the same side plate 21 of the negative pressure chamber 2 .

[0094] The exhaust port 31 of the exhaust cavity 3 is arranged on a third back plate 33 of the exhaust cavity in a direction different from the main air inlet 71 of the air inlet cavity 7 of the housing 1 .

[0095] The air outlet 31 and the main air inlet 71 are arranged in different directions. The main air inlet 71 is arranged on the long side of the shell 1 , and the air outlet 31 is arranged on the short side of the shell 1 .

[0096] The air inlet direction of the fan 6 is orthogonal or nearly orthogonal to the main air outlet direction of the external heat exchanger 5, so as to construct an air flow vortex chamber between the air outlet of the external heat exchanger 5 and the air inlet of the fan 6 in the negative pressure chamber 2;

[0097] The fan 6 in the exhaust cavity 3 is arranged at one end close to the exhaust port 31 thereof; the air outlet of the fan 6 faces the exhaust port 31 of the exhaust cavity 3; the exhaust port 31 of the exhaust cavity 3 is a vertical strip exhaust port;

[0098] The fan 6 is a centrifugal fan; preferably, a backward centrifugal fan is used; the area of ​​the exhaust surface of the outer periphery of the fan impeller is 2 to 8 times the area of ​​the air intake port of the fan 6.

[0099] The air conditioning main unit of this embodiment is provided with three vertically arranged fans 6 .

[0100] The external heat exchanger 5 is arranged in the air inlet cavity 7 of the housing 1;

[0101] The external heat exchanger 5 is composed of a heat exchange tube 502 and a metal fin 501 sleeved on the heat exchange tube 502. The heat exchange tube 502 is a heat exchange pipeline for carrying refrigerant transportation and heat exchange, and is selected from a copper tube.

[0102] The external heat exchanger 5 is an I-shaped fin-tube heat exchanger.

[0103] The heat exchange tube I-type finned tube heat exchanger is arranged in the air inlet cavity 7 of the shell 1, and forms a certain angle α with the main air inlet surface of the air inlet cavity 7 of the shell, and the angle α is an acute angle. The more preferred angle α is 15°-70°.

[0104] The fin pitch of the external heat exchanger 5 is less than 1 mm.

[0105] The fan 6 includes an impeller bracket 601, an impeller 602, and an impeller back cover 603. The impeller bracket 601 is connected to the impeller 602 through the impeller back cover 603 and is installed at the air inlet of the exhaust chamber. The axial air inlet surface of the fan 6 overlaps with the air inlet of the exhaust chamber 3, and the radial air exhaust surface of the fan 6 is arranged in the exhaust chamber. The area of ​​the radial air exhaust surface of the fan 6 is greater than the area of ​​the axial air inlet surface.

[0106] The external heat exchanger 5 also includes an L-type finned tube heat exchanger, and an M-type finned tube heat exchanger, an N-type finned tube heat exchanger, and a V-type finned tube heat exchanger which are formed by combining the I-type finned tube heat exchanger.

[0107] This embodiment adheres to the innovative concept of air path coupling and energy coupling between the air conditioner main unit and the equipment platform facade decoration structure. While maintaining the technical characteristics of the external heat exchanger assembly fin planing stepwise planing of the inlet air flow to implement deceleration and air distribution, it is committed to reducing the structure and volume of the inlet and outlet ducts of the external heat exchanger 5 built into the air conditioner main unit. By setting the air outlet direction of the air conditioner main unit heat exchanger orthogonally (or nearly orthogonally) to the direction of the fan air intake, an air flow vortex chamber between the heat exchanger outlet and the fan air intake is constructed;

[0108] This embodiment uses a backward centrifugal fan as the wind power of the external heat exchanger 5. Among all fan types, the backward centrifugal fan 6 has the highest energy efficiency; however, in terms of structure, the outer diameter φ1 of its impeller is about 1.5 times the diameter φ2 of its air inlet, and when installing, it is necessary to reserve an air outlet space of φ1×0.3 on the outer periphery of the impeller. Therefore, the actual space occupied by the outer periphery of the impeller is about 2 times the diameter of its air inlet, which becomes a key factor restricting the structure of the air conditioner host.

[0109] In this embodiment, the air intake direction of the fan is orthogonal (or nearly orthogonal) to the air outlet direction of the heat exchanger. Due to the structural characteristics and operating characteristics of the backward centrifugal fan, the cross-sectional area of ​​the heat exchanger outlet and the air inlet area of ​​the fan 6 are significantly larger than the area of ​​the air intake of the backward centrifugal fan body, so that the space from the air outlet of the external heat exchanger 5 to the air intake of the backward centrifugal fan becomes a buffering airflow vortex chamber on the air path of the external heat exchanger 5, a structural conversion zone and a functional conversion zone on the air path, and a buffer chamber for deceleration, boosting, adjustment, and reorganization of the airflow of the external heat exchanger 5.

[0110] The air path structure of this embodiment adopts the air inlet chamber 7 and the negative pressure chamber 2 of the external heat exchanger 5 connected in series, and then connected in series with the exhaust chamber 3 through the fan 6. The air inlet chamber 7, the negative pressure chamber 2, and the exhaust chamber 3 are arranged in sequence; in the exhaust chamber 3, the circumferential surface of the backward centrifugal fan impeller faces the exhaust port of the exhaust chamber 3; and a compressor chamber 4 is arranged on the outer side of the exhaust chamber 3 facing away from the exhaust port.

[0111] In this embodiment, the compressor chamber 4 and the centrifugal fan chamber are arranged in a rearward and parallel manner, which greatly reduces the pressure of the longitudinal exhaust chamber 3 outside the fan 6 or even returns it to zero, thereby greatly reducing the size, structure and volume of the air conditioner host;

[0112] In this embodiment, the fins of the external heat exchanger 5 are densely packed, and the fin pitch is less than 1 mm; preferably, the fin pitch is around 0.8 mm; by reducing the fin pitch, the hydraulic equivalent diameter of the fin gap is reduced, the air side convective heat transfer coefficient is improved, and the resistance of the fin tube to the heat exchange airflow, the throttling effect and the ventilation uniformity of the ventilation surface of the fin-tube heat exchanger are appropriately increased.

[0113] This embodiment eliminates the vertical exhaust chamber of the air-conditioning host in the background technology by setting an air flow vortex chamber, adjusting the spatial relationship between the air inlet chamber 7, the negative pressure chamber 2 and the exhaust chamber 3, and adjusting the spatial relationship between the compressor chamber 4 and the exhaust chamber 3, thereby reducing the longitudinal depth of the air-conditioning host and further promoting the structural complementary design of the compressor chamber 4 and the exhaust chamber 3, making a structurally compact wall-mounted air-conditioning host possible.

[0114] The fin-tube heat exchanger assembly referred to in this embodiment can be composed of 1 piece (I-shaped heat exchange tube), 2 pieces (V-shaped heat exchange tube), 3 pieces (N-shaped heat exchange tube), and 4 pieces (M-shaped heat exchange tube) of flat-plate fin tubes, and has the characteristic of "fin planer grading and low-speed air distribution of the incoming air flow" during operation.

[0115] The "heat exchange tube" referred to in this embodiment generally refers to a heat exchange pipeline for transporting refrigerant, which can be a composite heat exchange tube, an aluminum tube, an iron tube, a titanium tube, a stainless steel tube, etc.

[0116] When the air conditioner host of this embodiment is running, in the air path of the external heat exchanger 5, the ambient atmosphere is pulled by the negative pressure of the fan 6 to pass through the narrow air duct of the fin-tube heat exchanger and the heat exchanger cavity, obtaining a speed and dynamic pressure head of about 4m / s; the main air outlet airflow reaching the air outlet of the external heat exchanger 5 inertialy rushes toward the opposite air flow vortex chamber wall plate, is blocked, decelerated, and reflected by the opposite wall plate, and directly drives the air intake of the fan 6; especially the inertial airflow between the adjacent air intakes of the fan 6 in the vertical direction, between the air intake of the high-position fan 6 and the top plate of the air flow vortex chamber (close to the main unit cover plate), and between the air intake of the low-position fan 6 and the bottom plate of the air flow vortex chamber (close to the main unit chassis), after being blocked, decelerated, and reflected by the opposite wall plate, flows to the air intake area of ​​the fan 6 adjacent to the opposite wall plate, realizing the deceleration, pressure increase, reorganization, and redistribution of the heat exchange airflow in the air flow vortex chamber, thereby improving the uniformity and stability of the airflow inflow from the air intake of the fan 6;

[0117] In this embodiment, the effect of the air inlet of the backward centrifugal fan on the heat exchange airflow can be decomposed into two effects, two continuous effects without an interface, that is, two continuous composite effects:

[0118] ① The centrifugal fan suction port generates a gradient negative pressure from the inside to the outside in the negative pressure chamber 2 and the air inlet chamber 7 of the external heat exchanger 5, pulling the ambient atmosphere into the heat exchanger to complete the heat exchange. After that, the heat exchanger outlet air flow inertia rushes into the opposite wall plate in the air flow vortex chamber, and is blocked, decelerated, and reflected by the opposite wall plate, completing buffering, adjustment, and redistribution;

[0119] ② The air flow out of the external heat exchanger 5, which has been buffered, adjusted and redistributed in the air flow vortex chamber, is strongly pulled by the deep negative pressure of the centrifugal fan suction port. After being accelerated again, it rushes into the suction port of the fan 6 at a high speed from the 360° periphery of the suction port, is pressed into the exhaust chamber 3 after centrifugal boosting by the centrifugal fan impeller, and finally is injected into the ambient atmosphere through the vertical strip exhaust port of the exhaust chamber 3 at a high speed of about 7m / s for diffusion and dilution.

[0120] When the heat exchanger of the air conditioner host of this embodiment is in operation, air enters one side of the fin tube and exhausts the air on the other side. The airflow lines entering the fin gap intersect with the plane where the fin is located at an obtuse angle. The fin "bevels" the airflow lines of the airflow at a speed of about 4m / s, and the huge number of fin planers on the fin tube plan the airflow in stages, and then each piece of "shavings-like" airflow is stuffed into a corresponding fin gap to implement "low-speed air distribution" of about 1.5m / s in the fin gap; when the airflow lines after heat exchange leave the fin gap, they are once again "beveled" by the long side of the fin, and then enter the air intake of the centrifugal fan after turning;

[0121] The total resistance of the airflow in the air path of the heat exchanger 5 in this embodiment includes resistance along the way and local resistance; the local resistance includes resistance caused by the narrowing of the air inlet cross section, resistance caused by the narrowing of the filter mesh, resistance caused by the turning of the airflow direction in and out of the fin gap, resistance caused by the deceleration and acceleration of the airflow in and out of the fin gap, and resistance caused by the turning of the airflow in the air vortex chamber; in this embodiment, the local resistance is the main part of the total airflow resistance;

[0122] Under the operating condition of the air inlet of the fan 6 on one side, that is, in the case of an air path structure in which the direction of the incoming wind is orthogonal or nearly orthogonal to the direction of the air inlet of the fan 6, the air inlet resistance of the fan 6 on the side away from the air inlet (the side close to the compressor chamber 4 in the figure) is usually higher than the resistance on the side close to the air inlet (the side close to the air outlet of the heat exchanger), that is, the air pressure on the side of the fan 6 away from the air inlet is lower than the pressure on the side close to the air inlet, which will cause the running fan 6 to be subjected to a counterclockwise force couple and be in an unbalanced operating state, causing noise, vibration and asymmetric wear of the bearings;

[0123] In view of the above problems, the present embodiment adjusts the local resistance of the airflow in each area on the air outlet section of the fin-tube heat exchanger by innovatively setting the position and size of the air inlet on the main body shell, the angle of the airflow inlet and outlet fin gap, and the spatial relationship among the air inlet of the shell 1, the fin-tube heat exchanger, and the air suction port of the fan 6, so as to generate a heat exchanger airflow with a speed of about 4m / s and inertialy rush toward the target wall panel, so that the airflow is decelerated, pressurized, and reorganized in the air vortex chamber, so that the pressure of the fan 6 away from the air inlet is increased to a pressure close to that of the side adjacent to the air inlet, and the air flow pressure at the periphery of the air suction port of the fan 6 is uniformed, so that the total resistance of the airflow in each area on the air inlet section is balanced, and while achieving the uniformity of ventilation and heat exchange of the fin-tube heat exchanger, the above-mentioned force couple acting on the running fan 6 is eliminated to enter a balanced operating state, thereby eliminating the noise, vibration and asymmetric wear of the bearings generated thereby.

[0124] In this embodiment, a backward centrifugal fan is used as the wind power of the external heat exchanger 5; the external heat exchanger 5 includes fins 501 and heat exchange tubes 502;

[0125] In this embodiment, at the airflow inlet section EE, the medium-speed airflow of about 4m / s pouring in from the outer facade of the equipment platform is pushed to the fin gap inlet section FF in a uniform laminar flow form. At FF, the airflow line of the air intake forms an obtuse angle with the fins at the rear side of the gap. The fins at the rear side of the gap act as "planers" to "plan" a piece of airflow from the main airflow of the air intake and insert it into the fin gap; at FF, the main airflow of the air intake "planed" is intercepted by the tip of the "fin planer" and hits the fins at the rear side of the gap at an obtuse angle. The tip of the "planer" is planed down, and then reflected by the fins on the front side of the gap, diffused and decelerated in the fin gap; the 1.5m / s airflow planed out by the "fin planer" after collision diffusion and deceleration overcomes the resistance of the fin gap channel and flows out of the fin channel under the negative pressure of the negative pressure chamber; the low-speed airflow arriving at the GG section of the fin gap outlet is accelerated again to a medium-speed airflow of about 4m / s under the negative pressure of the negative pressure chamber, and then converges at the HH section and is discharged to the negative pressure chamber 2. The microscopic process of the fin planer planing low-speed air distribution experienced by the heat exchange airflow of the fin tube heat exchanger is an important link in the inlet and outlet wind field and inlet and outlet wind path of the external heat exchanger assembly.

[0126] In this embodiment, the air intake port of the fan is orthogonally arranged with the air outlet of the heat exchanger, and the centrifugal fan drives the air flow per unit volume (1m 3 / s, equivalent to the operating air volume of the heat exchanger outside the 4HP main engine) increased by 1 / 2×m×(ν 2 2 -ν 1 2)=8.3w kinetic energy consumption, the total airflow energy consumption per unit volume is about 2×8.3w=16.6w (ventilation efficiency 0.5), accounting for about 0.4% of the total power of the air conditioner host; the local resistance of the first deceleration and second turning when the heat exchange airflow passes through the fin-tube heat exchanger increases the resistance "throttling" effect of the fin gap, improves the uniformity of ventilation of the fin-tube heat exchanger, and improves the heat transfer coefficient and heat transfer efficiency; this local resistance consumes the kinetic energy of the incoming airflow;

[0127] The energy consumption of the air inlet airflow of about 4m / s of the air conditioner host in this embodiment is equivalent to the energy consumption of the exhaust airflow of the traditional side-outlet air conditioner host; therefore, compared with the traditional side-outlet air conditioner host, the air path of the air conditioner host in this embodiment has a net increase of 7m / s high-speed exhaust energy consumption, and the exhaust airflow per unit volume (1m 3 / s, equivalent to 4HP main engine running air volume) increased by 1 / 2×m×(v 2 2 -v 1 2 )=29.4w energy consumption, the total energy consumption per unit volume of exhaust air flow is about 2×29.4w, which accounts for about 2% of the total power of the air-conditioning host (ventilation efficiency 0.5); in this embodiment, the fan suction port and the heat exchanger outlet are orthogonally arranged, and the cop of the intensive air-conditioning host is increased by more than 10%. Therefore, the energy efficiency brought by the 2% increase in the total energy consumption of the host caused by the 7m / s high-speed exhaust reaches 10% / 2%=5, which is the part with the highest energy efficiency ratio in the total energy consumption of the host.

[0128] Example 2

[0129] like Fig.11 As shown, this embodiment discloses an air conditioner host, and the air inlet cavity 7 of the shell 1 is also provided with an air supply slit 9; specifically, this embodiment is the same as the embodiment 1, and both implement the concept of wind path coupling and energy coupling between the external heat exchanger 5 of the air conditioner host and the equipment platform facade decoration mechanism, adhere to the fin planer step-by-step planing of the air inlet air flow, and implement the zigzag external heat exchanger technology with ultra-high specific volume heat exchange intensity for decelerating the air distribution, and are committed to reducing the structure and volume of the air conditioner host, and through the orthogonal setting of the air outlet direction of the heat exchanger and the air suction direction of the air conditioner host fan, an air flow vortex chamber between the air outlet of the heat exchanger and the air suction port of the fan 6 is constructed, so that the air flow vortex chamber is converted into a chamber for decelerating, buffering, boosting, reflecting, and reorganizing the air flow of the external heat exchanger outlet;

[0130] This embodiment eliminates the vertical exhaust cavity 3 and the longitudinal exhaust cavity 3 of the air conditioner host in the background technology by setting the air flow vortex chamber and adjusting the spatial relationship between the air inlet cavity 7, the negative pressure cavity 2 and the exhaust cavity 3, reduces the longitudinal depth of the air conditioner host, and constructs a compact wall-mounted air conditioner host;

[0131] The difference of this embodiment is that an air supply slit 9 is provided on the side surface (short side of the shell) perpendicular to the front of the air conditioner main unit where the main air inlet 71 is located, so as to supplement the air intake to the part of the fin tube away from the air suction port of the fan.

[0132] In this embodiment, since an air supply slit 9 is provided on the side surface (short side of the outer shell) perpendicular to the front of the air conditioner main unit where the main air inlet 71 is located, the ventilation and heat exchange effect of the fin tube away from the fan suction port is improved, and at the same time, the air intake on the front of the main unit is distributed, reducing the front ventilation load pressure.

[0133] Example 3

[0134] like Figure 12-13 As shown, this embodiment discloses an air conditioner host, wherein a plurality of guide plates 10 perpendicular to the front panel 14 are provided on the inner side of the front panel 14 where the main air inlet 71 is provided, so as to distribute air to the external heat exchanger 5 in sections.

[0135] The technical principle and technical route of this embodiment are the same as those of Embodiments 1-2. Both implement the concept of wind path coupling and energy coupling between the external heat exchanger 5 of the air-conditioning main unit and the equipment platform facade decoration mechanism, adhere to the fin planer to step-plane the incoming air flow, and implement the zigzag external heat exchanger technology of decelerating air distribution. By orthogonally setting the air outlet direction of the heat exchanger and the air suction direction of the air-conditioning main unit fan, an airflow vortex chamber is constructed between the air outlet of the heat exchanger and the air suction port of the fan 6, so that the airflow vortex chamber is converted into a buffering, adjustment, and reorganization chamber for the air outlet air of the external heat exchanger.

[0136] This embodiment eliminates the vertical exhaust cavity 3 of the air conditioner host in the background technology by setting an air flow vortex chamber and adjusting the spatial relationship between the air inlet cavity 7, the negative pressure cavity 2 and the exhaust cavity 3, thereby reducing the longitudinal depth of the air conditioner host and further reducing the thickness of the host, thereby constructing a compact wall-mounted air conditioner host.

[0137] The air conditioner host of this embodiment is different from that of the first embodiment in that a plurality of guide vanes 10 perpendicular to the front panel 14 are arranged along the inner side of the front panel 14 where the main air inlet 71 is arranged to distribute air to the fin-tube heat exchanger in sections, thereby converting the front panel 14 into a low-speed air inlet surface of the air conditioner host;

[0138] In this embodiment, the longitudinal direction is perpendicular to the outer facade of the equipment platform and the transverse direction is parallel to the outer facade. When this embodiment is in operation, the centrifugal fan runs, and negative pressure is generated at the air suction port of the fan 6, pulling the air in front of the main engine front panel into the main engine along the gap between the transverse guide vanes 10; after the airflow passes through the longitudinal interval between the transverse guide vanes 10, it breaks away from the guide vanes 10, turns to the direction of the air suction port of the fan 6, flows to the corresponding section on the fin-tube heat exchanger, is planed in stages by the fin planer of the section, and then enters the fin gap to achieve deceleration and wind distribution; after the airflow completes the heat exchange between the fins, it continues to be pulled by the negative pressure of the air suction port of the fan 6, merges into the main airflow of the heat exchanger outlet, rushes to the opposite wall plate of the negative pressure chamber 2, is blocked, decelerated, boosted, and reflected by the opposite wall plate, and then flows into the air suction port of the fan 6, is boosted by the fan 6 and discharged into the exhaust chamber 3, and finally is injected into the outdoor atmospheric environment at high speed for diffusion and dilution.

[0139] This embodiment has all the advantages of Embodiments 1 / 2, and because a plurality of guide plates 10 perpendicular to the front panel 14 are arranged along the inner side of the front panel of the air-conditioning main unit (i.e., the inner side of the front panel where the main air inlet 8 is arranged), the front panel 14 is converted into a low-speed air inlet surface of the air-conditioning main unit, and the short side air inlet of the main unit facing away from the equipment platform facade is eliminated, which is suitable for equipment platforms with a shallow depth.

[0140] Example 4

[0141] like Figure 14-15 As shown, this embodiment discloses an air conditioner host, in which the exhaust port 31 of the exhaust cavity 3 is arranged on the opposite side from the main air inlet 71 of the air inlet cavity 7 of the housing 1. The exhaust port 31 and the main air inlet 71 are arranged on the opposite side so as to have the same orientation, for example, the exhaust port 31 and the main air inlet 71 are both arranged on the short side of the housing.

[0142] The external heat exchanger 5 includes a heat exchange tube V-shaped fin tube heat exchanger. The heat exchange tube V-shaped fin tube heat exchanger is an asymmetric heat exchange tube V-shaped fin tube heat exchanger with unequal lengths on both sides, and includes two heat exchange tube I-shaped fin tube heat exchangers with different lengths;

[0143] The long I-shaped finned tube heat exchanger is close to the outer side plate 15 of the shell 1 ; the short I-shaped finned tube heat exchanger is close to the first side plate 32 of the exhaust cavity 3 .

[0144] The air inlet cavity 7 of the shell 1 is also provided with an air supply slit 9; the air supply slit 9 is arranged on the outer side plate 15 of the shell 1 close to the long heat exchange tube I-shaped fin tube heat exchanger.

[0145] The air suction port and the air guide panel of the fan 6 are wedged into the negative pressure chamber 2 , and part of the space of the compressor chamber 4 is wedged into the negative pressure chamber 2 .

[0146] This embodiment implements the concept of wind path coupling and energy coupling between the external heat exchanger 5 of the air conditioner main unit and the equipment platform facade decoration mechanism, adheres to the fin planer step-by-step planing of the incoming air flow, implements the zigzag external heat exchanger technology with ultra-high specific volume heat exchange intensity for decelerating the air distribution, and is committed to reducing the structure and volume of the air conditioner main unit. By orthogonally setting the air outlet direction of the heat exchanger and the air inlet direction of the air conditioner main unit fan 6, an air flow vortex chamber between the air outlet of the heat exchanger and the air inlet of the fan 6 is constructed, so that the air flow vortex chamber is converted into a chamber for decelerating, buffering, boosting, reflecting, and reorganizing the air flow of the external heat exchanger outlet.

[0147] This embodiment eliminates the vertical exhaust cavity 3 and the longitudinal exhaust cavity 3 of the air conditioner host in the background technology by setting an air flow vortex chamber and adjusting the spatial relationship between the air inlet cavity 7, the negative pressure cavity 2 and the exhaust cavity 3, reduces the longitudinal depth of the air conditioner host and further reduces the transverse thickness of the host, and constructs a compact wall-mounted air conditioner host.

[0148] The difference of this embodiment is that: an asymmetric V-shaped finned tube external heat exchanger is adopted and the main air inlet 71 is designed to be orthogonal to the centrifugal fan air intake, while keeping the main air flow direction of the air outlet of the external heat exchanger perpendicular to the air intake direction of the fan to construct an air flow vortex chamber;

[0149] The present embodiment has all the advantages of an air-conditioning mainframe in which the air outlet direction of the external heat exchanger 5 is arranged orthogonally to the air intake direction of the fan 6, and because of the asymmetric design of the V-shaped fin-tube heat exchanger of the heat exchange tube and the rear-positioned and side-by-side arrangement of the compressor chamber 4 and the centrifugal fan chamber, the ventilation function of the two orthogonal surfaces of the front and side of the mainframe is exploited, and at the same time, the longitudinal exhaust chamber 3 outside the fan 6 is greatly reduced or even returned to zero, thereby further promoting the compactness of the structure, greatly reducing the size, structure and volume of the air-conditioning mainframe, and improving the load intensity of the mainframe.

[0150] Example 5

[0151] The technical principle and technical route of the air-conditioning host of this embodiment are the same as those of embodiments 1-4, and all of them implement the concept of energy coupling between the air-conditioning host and the facade decoration mechanism of the equipment platform, adhere to the technology of internal explicitness of the inlet and outlet ducts of the external heat exchanger of the air-conditioning host and the fin planing knife of the zigzag external heat exchanger assembly to implement deceleration and air distribution technology, and are committed to reducing the structure and volume of the inlet and outlet ducts of the external heat exchanger 5 built into the air-conditioning host; by orthogonally setting the air outlet direction of the heat exchanger and the air suction direction of the fan, a structural airflow vortex chamber with heat exchanger outlet airflow deceleration, boosting, buffering, and reorganization is constructed, thereby constructing a new spatial relationship between the air inlet cavity, negative pressure cavity, and exhaust cavity; and a comprehensive asymmetric design is implemented for the host air inlet cavity, negative pressure cavity 2 (airflow vortex chamber), and exhaust cavity 3, so as to comprehensively reduce the length and thickness of the host.

[0152] like Figure 16-19As shown, the difference between the air-conditioning host of this embodiment and embodiment 2 is that the exhaust outlet 31 of the exhaust chamber 3 is arranged on the second back plate 34 of the exhaust chamber opposite to the air inlet of the exhaust chamber 3 (i.e., the air intake port of the fan 6), and is arranged as a small-area horizontal strip exhaust outlet; preferably, the small-area strip exhaust outlet is arranged at the bottom of the second back plate 34.

[0153] The small area means that the area of ​​the air outlet is 10% to 30% of the area of ​​the second back plate 34 .

[0154] In another specific implementation manner, the small-area exhaust port is disposed in the middle and upper portion of the second back plate 34 , and the small-area exhaust port is a rectangular or diamond-shaped exhaust port.

[0155] In another specific implementation manner, the small-area exhaust port is disposed in the transverse middle portion of the second back plate 34 , and the small-area exhaust port is a vertical strip exhaust port.

[0156] The application scenario of the air-conditioning host of this embodiment is an equipment platform with a decorative structure on the facade. The main decorative structure of the equipment platform facade has shielding and transparency, and can be a group of metal columns, shutters, a garden door, a classical entrance door, a decorative surface with landscape painting as the core, or a decorative surface with narrow strip decorative panels staggered front and back to leave a longitudinal gap between the panels to serve as an air inlet, etc.; a strip exhaust vent such as a wire mesh structure is reserved at the lower edge of the main decorative structure, which is compatible with the low-position strip exhaust vent of the air-conditioning host.

[0157] Example 6

[0158] like Figure 20-21 As shown, a device platform is provided with the air-conditioning host of embodiments 1-4.

[0159] A vertical strip exhaust vent 13 is provided on at least one side of the facade of the equipment platform, and a main decorative structure 14 is also provided on the facade; the vertical strip exhaust vent 13 is a vertical strip exhaust vent pointing to one side of the facade.

[0160] The vertical strip exhaust port 13 includes a metal mesh and a metal column group;

[0161] The main decorative structure 14 of the equipment platform facade includes a metal column group, shutters, and / or a ventilation structure with a garden door, a classical entrance door, a landscape painting shape, and a ventilation structure with narrow strip decorative panels staggered front and back to leave a longitudinal gap between the panels.

[0162] Specifically, the air outlet corner 11 is arranged at the outlet of the exhaust chamber 3 so that the exhausted gas turns and is discharged, mainly to prevent the high-temperature exhaust air flow from flowing back to the side air inlet chamber 7; thereby preventing the air conditioner outdoor unit from inhaling the heated air, which greatly reduces the heat exchange efficiency.

[0163] Another specific embodiment is an equipment platform, the equipment platform is provided with the air conditioner host of embodiment 5. A rectangular or diamond-shaped or vertical strip-shaped small-area exhaust port is provided in the middle or lower middle part of the facade of the equipment platform, and a main decorative structure is also provided on the facade; the rectangular or diamond-shaped or vertical strip-shaped small-area exhaust port on the second back plate of the exhaust cavity faces the rectangular or diamond-shaped or vertical strip-shaped small-area exhaust port in the middle or lower middle part of the facade.

[0164] The small-area exhaust vents on the exterior facade include metal meshes, metal column groups and / or hollow structural patterns; the main decorative structure includes metal column groups, shutters and / or ventilation structures with garden doors, classical entrance doors, landscape painting shapes, and ventilation structures with narrow strip decorative panels staggered front and back to leave longitudinal gaps between the panels.

[0165] In another specific implementation, a horizontal strip exhaust port is arranged at the bottom of the facade of the equipment platform, and a main decorative structure is also arranged on the facade; the exhaust port on the second back plate of the exhaust cavity faces the horizontal strip exhaust port at the bottom of the facade.

[0166] The horizontal strip exhaust vents on the facade include a metal mesh and / or a metal column group;

[0167] The main decorative structure includes a metal column group, shutters and / or a ventilation structure with a garden door, a classical entrance door, a landscape painting shape, and a ventilation structure with narrow strip decorative panels staggered front and back to leave a longitudinal gap between the panels.

[0168] When installing the air conditioner host of this embodiment, it is installed on the equipment platform with its back facing the equipment platform facade, so that the horizontal strip exhaust port on the rear plate of the exhaust cavity is aligned with the strip exhaust port reserved below the main decorative structure of the facade;

[0169] In this embodiment, because the air-conditioning main unit and the equipment platform have horizontal strip exhaust vents on the exterior facade, there is no need for the symmetrical design of the vertical strip exhaust vents on both sides in the vertical strip exhaust vent scenario. The exterior facade can be set as a single-sided exhaust vent on the lower side. The exhaust vent occupies a smaller area on the exterior facade, and the continuity of the main decorative structure of the exterior facade is better. In addition, because the exhaust vent is arranged close to the upper edge of the anti-slope of the equipment platform and is separated from the air inlet area of ​​the exterior facade, the risk of exhaust short circuit is greatly reduced.

[0170] Now, the fundamental change in the application scenarios of air conditioner hosts calls for disruptive innovation in the structure of the air conditioner host and the spatial relationship between the air conditioner host and the equipment platform:

[0171] First, driven by the policies of the Housing and Urban-Rural Development Department such as "building good houses" and "equipment platform area is not included in the gross floor area", the independent equipment platform with good accessibility of the "all-in-one" air-conditioning host with one-to-many connections has been effectively implemented, and its potential to reduce the noise radiation range and create simple and elegant indoor and outdoor decoration will be fully explored, and it will replace the one-to-one room air conditioner and become the mainstream product in the air-conditioning market;

[0172] Secondly, the traditional side-outlet multi-split air-conditioning host enters the equipment platform from the external wall of the building. The inlet and outlet air paths of the external heat exchanger 5 face unprecedentedly stringent space constraints of the equipment platform, namely, "floor below, ceiling above, wall behind, and shutters in front". The side-outlet air-conditioning host faces the shutters, the exhaust static pressure increases, the air volume decreases, and part of the reduced air volume short-circuits back, causing serious degradation of the air-conditioning performance.

[0173] Constructing a high-quality equipment platform requires innovation in the structure of the air-conditioning host body, innovation in the equipment platform facade structure, and innovation in the spatial relationship between the air-conditioning host and the equipment platform facade.

[0174] The air conditioning host equipment platform of this embodiment is also provided with a platform door 12, which provides a convenient passage for the maintenance of the air conditioning host, allowing maintenance personnel to quickly enter the equipment platform for inspection, repair and maintenance work.

[0175] The air-conditioning host equipment platform of this embodiment is usually arranged on the north side of the building, preferably on the north side of the public toilet to reduce the occupation of the building's open surface, and is connected to the living balcony on the north side to fundamentally solve the accessibility of the equipment platform; the vertical strip exhaust vents of the air-conditioning host correspond to the vertical strip metal mesh reserved on the facade of the equipment platform; the facade decorative structure of the equipment platform can adopt narrow strip decorative panels that are staggered front and back to leave a longitudinal gap between the panels as an air inlet; it can also be a metal column group, it can also be a shutter, it can also be a garden door, a classical entrance door, a landscape painting, etc.; this embodiment adopts a shutter decorative structure.

[0176] When this embodiment is in operation, the air inlet of the heat exchanger 5 outside the air conditioner main unit draws in fresh air, creating a state of slight negative pressure in the entire space of the equipment platform, pulling the ambient atmosphere through the air inlet area on the facade louver (ventilated facade) over a large area at a low speed into the internal space of the equipment platform, and the internal space of the equipment platform and the air inlet duct of the heat exchanger 5 outside the main unit are combined into one; and the small area of ​​metal mesh on the side of the facade corresponding to the vertical strip air outlet area of ​​the air conditioner main unit constitutes the exhaust area; the air inlet area and the exhaust area are separated from each other, blocking the possibility of short-circuiting the exhaust backflow of the air conditioner main unit; and the facade of the equipment platform is used as According to the reference surface measurement, the area of ​​the metal mesh exhaust port of the external heat exchanger 5 of the air conditioner main unit in this embodiment is very small on the external facade, which is significantly smaller than the area of ​​the external facade louver as the air inlet area (less than 1 / 10); the air inlet airflow in the louver area has extremely low wind speed and small resistance when passing through the louver, and the exhaust airflow passes through the metal mesh on the side of the louver and then shoots into the ambient atmosphere at a small angle, with high speed, long range and good diffusion and dilution effect; the thermal performance of the air conditioner main unit on the equipment platform of this embodiment is not reduced compared with the laboratory data, and the task of "heat transporter" is completed with high quality and efficiency;

[0177] This embodiment not only eliminates the obstruction of the shutters to the exhaust of the external heat exchanger 5 of the classic air-conditioning main unit, realizes the integration of the internal space of the equipment platform and the air inlet duct of the external heat exchanger 5, effectively connects the air path of the external heat exchanger 5, and ensures the thermal performance of the air-conditioning main unit, but also maintains the decorativeness of the shutter facade, and realizes the perfect unity of the decorativeness of the equipment platform facade, the visual effect of the building facade and the excellent thermal performance of the air-conditioning main unit.

[0178] The advantages of the device platform of the air conditioner host with vertical strip exhaust vents in this embodiment are:

[0179] ①Build an efficient air duct system with the air conditioner main unit external heat exchanger 5 passing through the equipment platform facade

[0180] The vertical strip exhaust vent design close to the side of the equipment platform in this embodiment can greatly reduce the width of the exhaust vent and reduce the occupation of the area of ​​the decorative shutters commonly used on the facade, which not only maintains the function and decorativeness of the shuttered building facade to prevent wind and rain from invading the equipment platform, but also effectively improves the range and diffusion dilution effect of the exhaust air of the external heat exchanger 5 of the air-conditioning main unit passing through the facade of the equipment platform and entering the ambient atmosphere; this embodiment eliminates the obstruction of the shutters to the exhaust of the external heat exchanger 5 of the classic air-conditioning main unit, realizes the integration of the internal space of the equipment platform and the air inlet duct of the external heat exchanger 5, effectively connects the air path of the external heat exchanger 5, ensures the thermal performance of the air-conditioning main unit, and maintains the decorativeness of the shutter facade, realizing the perfect unity of the decorativeness of the equipment platform facade, the visual effect of the building facade and the excellent thermal performance of the air-conditioning main unit.

[0181] ②Increase the power density of the air conditioner host and reduce the equipment platform footprint

[0182] This embodiment adopts a fin-tube heat exchanger assembly with ultra-high specific volume heat exchange intensity. It also raises the height of the main unit to develop idle space on the top of the equipment platform, effectively reducing the floor space of invalid and inefficient space and ventilation blind spots on the equipment platform, and increasing the average cooling and heating power density of the air-conditioning main unit. Under the same cooling and heating load, the equipment platform area occupied by the air-conditioning main unit can be greatly saved.

[0183] ③ Air conditioning host inspection and maintenance

[0184] The equipment platform used in this embodiment is connected to the living balcony on the north side, which solves the accessibility of the equipment platform;

[0185] The air-conditioning host adopted in this embodiment has the fluorine circuit components such as the compressor, gas-liquid separator, four-way valve, expansion valve, electrical box, and fan 6 concentrated in the compressor cavity 4 parallel to the heat exchanger cavity. All the fluorine and air path components of the air-conditioning host are arranged in a cavity with only one layer of outer shell that can be disassembled, which facilitates the inspection and maintenance of the air-conditioning host.

[0186] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An air conditioner host, characterized in that: It comprises a shell (1), a negative pressure chamber (2), an exhaust chamber (3), a compressor chamber (4), an external heat exchanger (5) and a fan (6); The compressor chamber (4) and the exhaust chamber (3) are arranged side by side on the outside of the same side plate of the negative pressure chamber (2); The air intake direction of the fan (6) is arranged orthogonally or nearly orthogonally to the main air outlet direction of the external heat exchanger (5), thereby constructing an air flow vortex chamber between the air outlet of the external heat exchanger (5) and the air intake of the fan (6) in the negative pressure chamber (2).

2. The air conditioner host according to claim 1, characterized in that: The exhaust port of the exhaust cavity (3) is arranged on a third back plate of the exhaust cavity in a direction opposite to and / or on a side opposite to the main air inlet (8) of the air inlet cavity (7) of the housing (1). The air outlet of the fan (6) in the exhaust chamber (3) is directly opposite to the exhaust port of the exhaust chamber (3); the exhaust port of the exhaust chamber is a vertical strip exhaust port.

3. The air conditioner host according to claim 1, characterized in that: The exhaust outlet of the exhaust chamber is arranged on the second back plate of the exhaust chamber opposite to the air inlet of the exhaust chamber, and a small-area exhaust outlet is arranged; preferably, the small-area exhaust outlet is arranged at the bottom of the second back plate, and the small-area exhaust outlet is a horizontal strip exhaust outlet; preferably, the small-area exhaust outlet is arranged in the middle and upper part of the second back plate, and the small-area exhaust outlet is a rectangular or diamond-shaped exhaust outlet; preferably, the small-area exhaust outlet is arranged in the horizontal middle part of the second back plate, and the small-area exhaust outlet is a vertical strip exhaust outlet.

4. The air conditioner host according to claim 1, characterized in that: The fan (6) is a centrifugal fan; preferably, a backward centrifugal fan is used; the area of ​​the exhaust surface on the outer periphery of the fan impeller is 2 to 8 times the area of ​​the air intake port of the fan (6).

5. The air conditioner host according to claim 1, characterized in that: The external heat exchanger (5) is arranged in the air inlet cavity of the shell (1); The external heat exchanger (5) is composed of a heat exchange tube and metal fins sleeved on the heat exchange tube; The heat exchange tube is a heat exchange pipeline for carrying refrigerant transport and heat exchange, and is selected from any one of copper tube, aluminum tube, iron tube, titanium tube, stainless steel tube and alloy tube; The structure of the external heat exchanger (5) includes an I-shaped finned tube heat exchanger, an L-shaped finned tube heat exchanger, and an M-shaped finned tube heat exchanger, an N-shaped finned tube heat exchanger, and a V-shaped finned tube heat exchanger formed by combining the I-shaped finned tube heat exchanger.

6. The air conditioner host according to claim 5, characterized in that: The heat exchange tube I-type fin tube heat exchanger is arranged in the air inlet cavity of the shell, and forms a certain angle α with the main air inlet surface of the air inlet cavity of the shell; the angle α is an acute angle; preferably, the angle α is 15°-70°.

7. The air conditioner host according to claim 5, characterized in that: The V-shaped finned tube heat exchanger is an asymmetric V-shaped finned tube heat exchanger with unequal lengths of heat exchange tubes on both sides, and is composed of two I-shaped finned tube heat exchangers with different lengths of heat exchange tubes; The long heat exchange tube I-shaped finned tube heat exchanger is close to the outer side plate of the shell (1); and the short heat exchange tube I-shaped finned tube heat exchanger is close to the first side plate of the exhaust cavity (3).

8. The air conditioner host according to claim 1, characterized in that: The air inlet cavity of the shell (1) is also provided with an air supply slit (9); the air supply slit (9) is arranged on the outer side plate of the shell (1) close to the long heat exchange tube I-shaped fin tube heat exchanger.

9. The air conditioner host according to claim 1, characterized in that: The air suction port and the air guide panel of the fan (6) are wedged into the negative pressure chamber (2), and part of the space of the compressor chamber (4) is wedged into the negative pressure chamber (6).

10. The air conditioner host according to claim 1, characterized in that: The inner side of the front panel on which the main air inlet (8) is arranged is provided with a plurality of guide plates (10) perpendicular to the front panel, so as to distribute air to the external heat exchanger (5) in sections.

11. A device platform, characterized in that: The equipment platform is provided with the air-conditioning host as described in claims 1-10.

12. The device platform according to claim 11, characterized in that: A vertical strip exhaust port is arranged on at least one side of the facade of the equipment platform, and a main decorative structure is also arranged on the facade; the vertical strip exhaust port on the third back plate of the exhaust cavity points to the vertical strip exhaust port on one side of the facade.

13. The device platform according to claim 12, characterized in that: The vertical strip exhaust vents of the equipment platform include a metal mesh and / or a metal column group; The main decorative structure of the equipment platform facade includes a metal column group, shutters, and / or a ventilation structure with a garden door, a classical entrance door, a landscape painting shape, and a ventilation structure with narrow strip decorative panels staggered front and back to leave a longitudinal gap between the panels.

14. The device platform according to claim 11, characterized in that: A small-area exhaust port in a rectangular, diamond or vertical strip shape is arranged in the middle or lower-middle part of the facade of the equipment platform, and a main decorative structure is also arranged on the facade; the small-area exhaust port in a rectangular, diamond or vertical strip shape on the second back plate of the exhaust cavity faces the small-area exhaust port in the rectangular, diamond or vertical strip shape in the middle or lower-middle part of the facade.

15. The device platform according to claim 14, characterized in that: The small-area air outlet arrangement on the facade includes a metal mesh, a metal column group and / or a hollow structure pattern; The main decorative structure includes a metal column group, shutters and / or a ventilation structure with a garden door, a classical entrance door, a landscape painting shape, and a ventilation structure with narrow strip decorative panels staggered front and back to leave a longitudinal gap between the panels.

16. The device platform according to claim 11, characterized in that: A horizontal strip exhaust port is arranged at the bottom of the facade of the equipment platform, and a main decorative structure is also arranged on the facade; the exhaust port on the second back plate of the exhaust cavity faces the horizontal strip exhaust port at the bottom of the facade.

17. The device platform according to claim 16, characterized in that: The horizontal strip exhaust vents on the facade include a metal mesh and / or a metal column group; The main decorative structure includes a metal column group, shutters and / or a ventilation structure with a garden door, a classical entrance door, a landscape painting shape, and a ventilation structure with narrow strip decorative panels staggered front and back to leave a longitudinal gap between the panels.

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