CN116123621A - Outdoor unit and air conditioner - Google Patents

Abstract

The invention discloses an outdoor unit and an air conditioner, and relates to the technical field of air conditioning equipment. The shell is provided with an air inlet and an air outlet, a mounting cavity communicated with the air inlet and a static pressure cavity communicated with the air outlet are respectively formed in the shell, and the static pressure cavity is positioned above the mounting cavity; the centrifugal fan and the heat exchanger are arranged in the installation cavity. The outdoor air flow enters the installation cavity from the air inlet of the shell, enters the centrifugal fan after heat exchange through the heat exchanger, is discharged to the static pressure cavity through the air outlet end after being pressurized by the centrifugal fan, and is finally discharged through the air outlet of the static pressure cavity, so that the outdoor unit can realize various air inlet directions such as front air inlet and various air outlet directions such as front air outlet, and can select proper air inlet and outlet directions according to different installation environments, the problems of difficult air return and hot air backflow of the outdoor unit are solved, the heat dissipation effect of the heat exchanger is guaranteed, and the heat exchange efficiency is improved.

Description

Outdoor unit and air conditioner

technical field

The invention relates to the technical field of air conditioners, in particular to an outdoor unit and an air conditioner.

Background technique

In the related art, the outdoor unit of the air conditioner is usually installed in a cage-type space, that is, three walls and one louver, which makes it difficult to return air from the back of the outdoor unit of the air conditioner, and the heat exchanger has poor heat dissipation, making it difficult to achieve heat exchange. In addition, traditional air conditioner outdoor units use axial-flow fan blades, which have low compressive capacity, and their air outlet is easily blocked by louvers to form hot air backflow, which cannot effectively discharge air, which further affects the heat exchange efficiency.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes an outdoor unit, which can solve the problem of poor heat dissipation of the heat exchanger and improve heat exchange efficiency.

The present invention also proposes an air conditioner provided with the above-mentioned outdoor unit.

The outdoor unit according to the embodiment of the first aspect of the present invention includes: a casing, which is provided with an air inlet and an air outlet, and the interior of the casing is respectively formed with an installation cavity connected to the air inlet and a static chamber connected to the air outlet. The pressure chamber, the static pressure chamber is located above the installation chamber; the centrifugal fan is installed in the installation chamber, the centrifugal fan includes a volute, and the volute is provided with an air inlet along at least one side of the front and rear direction. end, the air inlet end communicates with the installation chamber, the top of the volute is provided with an air outlet end, and the air outlet end communicates with the static pressure chamber; the heat exchanger is installed in the installation chamber and located between the air inlet and the air inlet end.

The outdoor unit according to the embodiment of the present invention has at least the following beneficial effects:

By installing a centrifugal fan, a heat exchanger and a housing, an installation chamber and a static pressure chamber are formed inside the housing. The housing is provided with an air inlet connected to the installation chamber and an air outlet connected to the static pressure chamber. The air inlet enters the installation chamber, and after exchanging heat through the heat exchanger, it enters the centrifugal fan from the air inlet end. After the centrifugal fan is pressurized, it is discharged to the static pressure chamber through the air outlet end, and finally discharged through the air outlet of the static pressure chamber, so that the outdoor unit It can realize multiple air intake directions such as forward air, and various air outlet directions such as front air outlet, so that the appropriate air inlet and outlet directions can be selected according to different installation environments, and the problems of difficult return air and hot air return of outdoor units can be solved. The heat dissipation effect of the heat exchanger is guaranteed, and the heat exchange efficiency is improved.

According to some embodiments of the present invention, a partition plate is provided inside the casing, the installation chamber and the static pressure chamber are separated by the partition plate, and the top of the volute is connected to the Partition plate.

According to some embodiments of the present invention, the air outlet is located on at least one side wall of the static pressure chamber.

According to some embodiments of the present invention, the two side walls of the static pressure chamber along the front and rear directions are respectively provided with the air outlets.

According to some embodiments of the present invention, one of the two side walls is provided with an air outlet fan, and the other is provided with an air outlet grill.

According to some embodiments of the present invention, the air outlet is located on the top wall of the static pressure chamber.

According to some embodiments of the present invention, the outdoor unit further includes a cover plate, which is detachably mounted on the casing and capable of covering the air outlet.

According to some embodiments of the present invention, the outdoor unit further includes an air duct connected to the air outlet.

According to some embodiments of the present invention, the two sides of the volute are respectively provided with the air inlets, the two sides of the housing are respectively provided with the air inlets, the two air inlets and the two The air inlets are arranged opposite to each other; the heat exchanger includes a first heat exchange part and a second heat exchange part, and the first heat exchange part and the second heat exchange part are respectively located on both sides of the volute.

According to some embodiments of the present invention, one side wall of the casing along the left and right direction is provided with a side air port communicating with the installation cavity; the heat exchanger further includes a third heat exchange port opposite to the side air port two ends of the third heat exchange part are respectively connected to the first heat exchange part and the second heat exchange part.

According to some embodiments of the present invention, the outdoor unit further includes a chassis and a middle partition, and the volute is fixedly connected to the chassis and/or the middle partition.

The air conditioner according to the embodiment of the second aspect of the present invention includes the outdoor unit described in the above embodiment.

The air conditioner according to the embodiment of the present invention has at least the following beneficial effects:

Using the outdoor unit of the embodiment of the first aspect, the outdoor unit is provided with a centrifugal fan, a heat exchanger, and a housing, and an installation chamber and a static pressure chamber are formed inside the housing, and the housing is provided with an air inlet connected to the installation chamber and a static pressure The air outlet connected to the cavity, the outdoor air enters the installation cavity from the air inlet of the shell, and after exchanging heat through the heat exchanger, it enters the centrifugal fan from the air inlet end, and the centrifugal fan is pressurized and discharged to the static pressure chamber through the air outlet end, Through the air outlet of the static pressure chamber, the outdoor unit can realize multiple air intake directions such as forward air, and various air outlet directions such as front air outlet, so that the appropriate air inlet and outlet directions can be selected according to different installation environments, solving the problem of It solves the problems of difficulty in returning air from the outdoor unit and the return of hot air, ensures the heat dissipation effect of the heat exchanger, improves the heat exchange efficiency, and improves the energy efficiency of the air conditioner.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, wherein:

Fig. 1 is the structural representation of the outdoor unit of a kind of embodiment of the present invention;

Fig. 2 is a cross-sectional view of an angle of the outdoor unit shown in Fig. 1;

Fig. 3 is a sectional view from another angle of the outdoor unit shown in Fig. 1;

Fig. 4 is a structural schematic diagram of a heat exchanger and a centrifugal fan in an outdoor unit according to an embodiment of the present invention;

5 is a schematic structural view of a centrifugal fan in an outdoor unit according to an embodiment of the present invention;

Fig. 6 is a schematic structural diagram of an outdoor unit according to another embodiment of the present invention;

Fig. 7 is a schematic diagram of the installation of an outdoor unit in a cage space according to an embodiment of the present invention;

Fig. 8 is a schematic diagram of the installation of an outdoor unit in a canyon-like space according to an embodiment of the present invention.

Figure number:

Outdoor unit 1000;

Chassis 100; foot 110; middle partition 120; partition 130; through hole 131;

Housing 200; installation chamber 210; piping chamber 220; static pressure chamber 230; air inlet 240; air outlet 250; side air outlet 260; air outlet fan 270; air outlet grille 280;

The heat exchanger 300; the first heat exchange part 310; the second heat exchange part 320; the third heat exchange part 330;

Centrifugal fan 400; volute 410; air inlet end 411; air outlet end 412; flange 413; wind wheel 420; motor 430; support 440;

compressor 500;

Cover plate 600;

Duct 700.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that when it comes to orientation descriptions, for example, the orientation or positional relationship indicated by up, down, etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention.

In the description of the present invention, a plurality refers to two or more. If the description of the first and second is only for the purpose of distinguishing the technical features, it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, and connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

Referring to FIG. 1 , an outdoor unit 1000 according to an embodiment of the present invention can be applied to refrigeration systems such as split air conditioners, and can also be applied to heat pump systems such as air source water heaters. Since the outdoor unit 1000 needs to be installed in an outdoor environment, the installation space reserved for the outdoor unit 1000 is generally relatively narrow, for example, the outer wall of a high-rise building is generally a cage-like space; The return air is disturbed and cannot achieve effective heat exchange, thereby reducing the heat exchange effect and energy efficiency level of the refrigeration system or heat pump system.

1 and 2, an outdoor unit 1000 of an embodiment of the present invention is an outdoor unit 1000 of an air conditioner. The outdoor unit 1000 of the embodiment of the present invention includes a chassis 100 , a casing 200 , a heat exchanger 300 , a centrifugal fan 400 and a compressor 500 . The chassis 100 is installed with footings 110 , and the footings 110 are used to support the overall structure of the outdoor unit 1000 . The chassis 100 is also equipped with a middle partition 120, and the housing 200 is installed on the chassis 100 to form an accommodating space. The middle partition 120 divides the accommodating space into an installation cavity 210 and a piping cavity 220, a heat exchanger 300 and a centrifugal fan 400. Installed in the installation cavity 210 , the compressor 500 is installed in the piping cavity 220 . It can be understood that a static pressure chamber 230 is also formed inside the housing 200, and the static pressure chamber 230 is located above the installation chamber 210. Separated; it can also be a cavity separated from the installation cavity 210, for example wrapped by an independent sheet metal. Moreover, the static pressure chamber 230 is not directly communicated with the installation chamber 210 .

Referring to FIG. 3 , it can be understood that the casing 200 is provided with an air inlet 240 and an air outlet 250 that are separated from each other. The air inlet 240 communicates with the installation chamber 210, and the air inlet 240 can be arranged on the wall of the installation chamber 210 in contact with the outdoor environment, so the air inlet 240 can be arranged on the front side or the rear side of the housing 200, which can be selected according to the actual situation. The air outlet 250 communicates with the static pressure chamber 230, and the air outlet 250 can be arranged on the wall surface of the static pressure chamber 230 in contact with the outdoor environment, so the air outlet 250 can be arranged on the front side, the rear side or the top side of the housing 200. Choose according to the actual situation.

Referring to FIG. 4 and FIG. 5 , it can be understood that the heat exchanger 300 is located outside the centrifugal fan 400 and wraps part of the periphery of the centrifugal fan 400 . The centrifugal fan 400 includes a volute 410 and a wind wheel 420 , the wind wheel 420 is driven to rotate by a motor 430 , and the motor 430 is installed on the side wall of the volute 410 . At least one side wall of the volute 410 is provided with an air inlet 411 , and the air inlet 411 communicates with the installation cavity 210 , and air flows into the centrifugal fan 400 from the air inlet 411 . The top of the volute 410 is provided with an air outlet 412 , the centrifugal fan 400 discharges the air gas upwards, and the air outlet 412 communicates with the static pressure chamber 230 , so that the installation chamber 210 communicates with the static pressure chamber 230 through the centrifugal fan 400 . The heat exchanger 300 is located between the air inlet 240 and the air inlet 411 .

Referring to Figures 3 and 4, when the centrifugal fan 400 is working, it provides fluid power for the outdoor unit 1000 to form a relatively high negative pressure, so that the air in the outdoor environment flows into the heat exchanger 300 and the centrifugal fan 400, and is driven by the centrifugal fan. The air outlet 412 of the air outlet 400 is discharged to the static pressure chamber 230 , and finally discharged to the outdoor environment through the air outlet 250 .

It should be noted that the outdoor unit 1000 of the embodiment of the present invention adopts the centrifugal fan 400 , which can form a higher negative pressure than the axial fan blades of the traditional outdoor unit 1000 and improve the return air effect of the outdoor unit 1000 . In order to reduce wind resistance and improve the return air effect, the air inlet 240 and the air inlet end 411 can be arranged opposite to each other.

2 and 3, the outdoor unit 1000 according to the embodiment of the present invention is provided with a centrifugal fan 400, a heat exchanger 300 and a housing 200. The housing 200 forms an installation chamber 210 and a static pressure chamber 230, and the housing 200 is set There is an air inlet 240 communicating with the installation chamber 210 and an air outlet 250 communicating with the static pressure chamber 230 , the air in the outdoor environment enters the installation chamber 210 from the air inlet 240 of the casing 200 , and enters after exchanging heat through the heat exchanger 300 The centrifugal fan 400 is pressurized and discharged to the static pressure chamber 230 through the air outlet 412. The static pressure chamber 230 further increases the pressure of the air gas, and finally it is discharged through the air outlet 250, which improves the exhaust pressure and realizes air pressure. Gas heat exchange. Therefore, the outdoor unit 1000 of the embodiment of the present invention can realize various air intake directions such as forward air intake, rear air intake, and front and rear air intake, as well as multiple air outlet directions such as front air outlet, rear air outlet, front and rear air outlet, and top air outlet. direction, so that the appropriate air inlet direction and air outlet direction can be selected according to different installation environments, and a more reasonable air inlet airflow and air outlet airflow design can be realized. The heat dissipation effect of the heater 300 improves the heat exchange efficiency.

Referring to Fig. 2 and Fig. 3, it can be understood that the interior of the housing 200 is provided with a partition plate 130, and the partition plate 130 can be fixed with the housing 200 by welding, riveting, screwing, or integrally formed connect. The installation chamber 210 and the static pressure chamber 230 are separated by a partition plate 130 . It can be understood that the top of the volute 410 is connected to the partition plate 130 , which makes the overall connection of the volute 410 more stable and ensures the stability of the connection of the volute 410 . In order to realize the sealed separation of the installation chamber 210 and the static pressure chamber 230, the partition plate 130 is provided with a through hole 131, the top of the volute 410 is inserted and positioned in the through hole 131, and the flange 413 on the top of the volute 410 and the partition plate 130 The connection is fixed so as to seal the edge of the through hole 131 and reduce wind blowing. The air outlet end 412 of the volute 410 directly discharges the air gas into the static pressure chamber 230 , so that the exhaust effect of the static pressure chamber 230 is better.

Referring to FIG. 3 , it can be understood that air inlet ends 411 are respectively provided on both sides of the volute 410 along the front and back direction, and the flow rate of the heat exchange airflow can be increased by using a two-way centrifugal fan. Correspondingly, air inlets 240 are respectively provided on both sides of the housing 200 along the front and rear directions, and the corresponding air inlet ends 411 are disposed opposite to the corresponding air inlets 240 . In addition, the heat exchanger 300 includes a first heat exchange part 310 and a second heat exchange part 320, the first heat exchange part 310 and the second heat exchange part 320 are respectively located on the front and rear sides of the volute 410, the first heat exchange part 310 The second heat exchange part 320 is arranged between the air inlet end 411 on the rear side of the volute 410 and the air inlet 240 on the front side of the housing 200 . Between the air inlet end 411, a multi-fold heat exchanger is used, which can increase the effective heat exchange area. Combined with the two-way centrifugal fan, the return air area of the outdoor unit 1000 is larger and the return air is smoother, thereby improving the efficiency of the outdoor unit 1000. heat transfer efficiency.

Referring to FIG. 1 and FIG. 6 , it can be understood that the casing 200 is further provided with a side air port 260 , and the side air port 260 communicates with the installation cavity 210 . The side air outlet 260 is located on the left side wall of the housing 200 , that is, located on the side wall where the two air inlets 240 are located, which further increases the effective area of the return air. Correspondingly, the heat exchanger 300 further includes a third heat exchange part 330, and the two ends of the third heat exchange part 330 are respectively connected with the first heat exchange part 310 and the second heat exchange part 320, thereby forming the three-fold heat exchanger 300 , which further increases the effective heat exchange area, thereby further improving the heat exchange efficiency of the outdoor unit 1000 .

Referring to FIG. 1 , FIG. 3 and FIG. 7 , it can be understood that the air outlet 250 is located on at least one side wall of the static pressure chamber 230 . The two side walls of the static pressure chamber 230 along the front and rear directions are the front side wall and the rear side wall respectively, and the air outlet 250 can be arranged on the front side wall of the static pressure chamber 230, or on the rear side wall of the static pressure chamber 230, or at the same time. on the front side wall and the rear side wall of the static pressure chamber 230 . When the air outlet 250 is set on the front side wall or the rear side wall of the static pressure chamber 230, the outdoor unit 1000 can discharge the heat-exchanged air to the front or rear. Long, effectively avoiding hot air backflow. When the outdoor unit 1000 according to the embodiment of the present invention is installed in the cage space shown in FIG. The gas is discharged forward to achieve stable and smooth exhaust and improve the heat exchange effect.

Referring to FIG. 3 , it can be understood that the front side wall and the rear side wall of the static pressure chamber 230 are respectively provided with air outlets 250 . If the installation location and the air exhaust space allow, setting two air outlets 250 can improve the efficiency of air exhaust and the efficiency of heat exchange. It can be understood that the two air outlets 250 can be installed with baffles respectively, and the two baffles or any one of the baffles can be disassembled according to the installation requirements, so as to realize quick assembly.

1 and 6, it can be understood that the front side wall of the static pressure chamber 230 is provided with an air outlet fan 270 at the air outlet 250, and the air outlet fan 270 is composed of multiple groups of fan units arranged at intervals along the left and right directions. , can further increase the exhaust distance. The rear side wall of the static pressure chamber 230 is provided with an outlet grille 280 at the air outlet 250, and the outlet grille 280 can arrange the exhaust airflow to avoid heat exchange between the exhaust airflow and the inlet airflow. As another implementation manner, the outlet fan 270 may be disposed on the rear sidewall of the static pressure chamber 230 , and the outlet grille 280 may be disposed on the front sidewall of the static pressure chamber 230 . It can be understood that the air outlet fan 270 and the air outlet grille 280 can be configured as parts detachably connected to the two side walls of the static pressure chamber 230 , so they can be installed interchangeably to meet different air exhaust requirements.

Referring to FIG. 1 and FIG. 8 , in an outdoor unit 1000 according to another embodiment of the present invention, the air outlet 250 is located on the top wall of the static pressure chamber 230 , and the top wall is located on the upper end of the casing 200 . When the air outlet 250 is set on the top wall of the static pressure chamber 230, the outdoor unit 1000 can discharge the heat-exchanged air upwards. Under the action of the static pressure chamber 230, the discharged airflow distance is longer, effectively avoiding the backflow of hot air. When the outdoor unit 1000 of the embodiment of the present invention is installed in the canyon-like space shown in FIG. The gas is discharged upwards, which is conducive to the rising of hot air to dissipate heat, avoiding the backflow of hot air and airflow interference when multiple outdoor units 1000 are arranged side by side, achieving effective and smooth exhaust and improving the heat exchange effect.

Referring to FIG. 1 and FIG. 6 , it can be understood that the outdoor unit 1000 further includes a cover plate 600 , and the cover plate 600 is detachably mounted on the casing 200 . The cover plate 600 can cover the air outlet 250 so as to seal the air outlet 250 of the top wall. When the front side wall, the rear side wall and the top wall of the static pressure chamber 230 are all provided with air outlets 250, and when the air outlets 250 of the front side wall or the rear side wall are selected to be used, the cover plate 600 can close the air outlets 250 of the top wall , so as to ensure the air outlet effect of other air outlets 250.

Referring to FIG. 7 , an outdoor unit 1000 in another embodiment of the present invention further includes an air duct 700 connected to the air outlet 250 , and the air duct 700 can guide the airflow from the air outlet 250 to a designated position. It can be understood that the air duct 700 can be connected to the air outlet 250 on the top wall of the static pressure chamber 230 , or connected to the air outlet 250 on the front side wall or the rear side wall of the static pressure chamber 230 . Choose the installation environment. For example, when the air duct 700 is connected to the air outlet 250 on the front side wall of the static pressure chamber 230, the air duct 700 can be extended toward the louvers and fixed close to the louvers, thereby reducing the influence of the louvers on the exhaust air flow. For another example, the air duct 700 may be connected to the wall hole, so as to guide the exhaust air flow to the wall hole to be discharged, thereby ensuring the effect of exhaust air. It can be understood that the air duct 700 adopts a retractable hose, so as to facilitate adjustment of installation positions at both ends of the air duct 700 and improve installation convenience.

2 and 5, it can be understood that, in order to improve the installation stability of the volute 410, the volute 410 can also be fixedly connected to the chassis 100 or the middle partition 120, or fixedly connected to the chassis 100 and the middle partition at the same time. Partition 120 . Since the volute 410 has an irregular shape, the volute 410 is generally fixedly connected to the chassis 100 or the middle partition 120 by the support 440, and the support 440 and the volute 410 can be fixed by integral molding or welding, and the support 440 It can be fixed with the chassis 100 or the middle partition 120 by means of welding, screwing or riveting, and the details are not limited here.

The air conditioner of the embodiment of the present invention includes an indoor unit and the outdoor unit 1000 of the above embodiments. The indoor unit can be a wall-mounted air conditioner, a floor-standing air conditioner, or an air duct 700 machine, etc. The indoor unit is connected to the outdoor unit 1000 through a refrigerant pipe, so that Realize the refrigerant circulation connection of the refrigeration system. The air conditioner of the embodiment of the present invention adopts the outdoor unit 1000 of the embodiment of the first aspect. The outdoor unit 1000 is provided with a centrifugal fan 400, a heat exchanger 300 and a housing 200, and the installation chamber 210 and the static pressure chamber 230 are formed inside the housing 200. The housing 200 is provided with an air inlet 240 communicating with the installation cavity 210 and an air outlet 250 communicating with the static pressure chamber 230 , the outdoor airflow enters the installation cavity 210 from the air inlet 240 of the housing 200 and passes through the heat exchanger 300 after heat exchange Entering the centrifugal fan 400, the centrifugal fan 400 is pressurized and discharged to the static pressure chamber 230 through the air outlet 412, and finally discharged through the air outlet 250 of the static pressure chamber 230, so that the outdoor unit 1000 can realize various air inlet directions such as forward wind, And realize multiple air outlet directions such as front air outlet, so that the appropriate air inlet and outlet directions can be selected according to different installation environments, which solves the problem of difficult air return and hot air return of the outdoor unit 1000, and ensures the heat dissipation effect of the heat exchanger 300. The heat exchange efficiency is improved, and the energy efficiency of the air conditioner is improved.

Since the air conditioner adopts all the technical solutions of the outdoor unit 1000 of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be repeated here.

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and within the scope of knowledge of those of ordinary skill in the art, various modifications can be made without departing from the spirit of the present invention. Variety.

Claims (12)

1. The outdoor unit is characterized in that it comprises: The casing is provided with an air inlet and an air outlet, and the interior of the casing is respectively formed with an installation chamber connected to the air inlet and a static pressure chamber connected to the air outlet, and the static pressure chamber is located at the side of the installation chamber. above; The centrifugal fan is installed in the installation cavity, the centrifugal fan includes a volute, the volute is provided with an air inlet end along at least one side of the front and back direction, the air inlet end communicates with the installation cavity, the The top of the volute is provided with an air outlet, and the air outlet communicates with the static pressure chamber; A heat exchanger is installed in the installation cavity and is located between the air inlet and the air inlet end. 2. The outdoor unit according to claim 1, characterized in that: a partition plate is provided inside the housing, the installation chamber and the static pressure chamber are separated by the partition plate, the The top of the volute is connected to the partition plate. 3. The outdoor unit according to claim 1, wherein the air outlet is located on at least one side wall of the static pressure chamber. 4. The outdoor unit according to claim 3, characterized in that: the two side walls of the static pressure chamber along the front and rear directions are respectively provided with the air outlets. 5. The outdoor unit according to claim 4, wherein one of the two side walls is provided with an air outlet fan, and the other is provided with an air outlet grille. 6. The outdoor unit according to claim 1, wherein the air outlet is located on the top wall of the static pressure chamber. 7 . The outdoor unit according to claim 6 , wherein the outdoor unit further comprises a cover plate, the cover plate is detachably mounted on the casing and can cover the air outlet. 8 . 8. The outdoor unit according to claim 1, wherein the outdoor unit further comprises an air duct connected to the air outlet. 9. The outdoor unit according to claim 1, characterized in that: the air inlet ends are respectively provided on both sides of the volute, the air inlets are respectively provided on both sides of the housing, and the two The air inlet end and the two air inlets are arranged opposite to each other; the heat exchanger includes a first heat exchange part and a second heat exchange part, and the first heat exchange part and the second heat exchange part are respectively located at both sides of the volute. 10. The outdoor unit according to claim 9, characterized in that: one side wall of the casing along the left and right direction is provided with a side air outlet communicating with the installation cavity; the heat exchanger also includes a The third heat exchange part is arranged opposite to the tuyere, and the two ends of the third heat exchange part are respectively connected to the first heat exchange part and the second heat exchange part. 11. The outdoor unit according to claim 1, wherein the outdoor unit further comprises a chassis and a middle partition, and the volute is fixedly connected to the chassis and/or the middle partition. 12. An air conditioner, characterized by comprising the outdoor unit according to any one of claims 1 to 11.

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