Air conditioner

Abstract

The utility model relates to an air conditioner, which belongs to the technical field of air conditioners and comprises a casing, a heat exchanger, volutes, a heat exchange fan, a driving motor and a connecting shaft, a first inner cavity and a second inner cavity are arranged in the casing along the width direction of the casing, the heat exchanger is arranged in the second inner cavity, and the volutes are arranged in the first inner cavity at intervals along the length direction of the casing. The multiple heat exchange fans are arranged in the multiple volutes in a one-to-one correspondence mode, the axial direction of the heat exchange fans is the same as the length direction of the shell, the driving motor is arranged in the first inner cavity, the two connecting shafts are coaxially connected to the two ends of the driving motor respectively, and the connecting shafts coaxially penetrate through and are connected to the heat exchange fans. The diameter of the heat exchange fan is D, the length of the volute in the length direction of the shell is b, and b and D meet the relational expression that b = (1.25-1.35) D. The space between the volutes is increased, the air inlet area is increased, the air inlet amount is effectively increased, the uniformity of the air speed of the windward side of the heat exchanger is guaranteed, and the air inlet uniformity and the air outlet uniformity are improved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and in particular to an air conditioner. Background Art

[0002] Air conditioners are indispensable electrical equipment in people's daily lives and have various structural forms. With the continuous improvement of industrial design level and the application of new technologies, new materials and new shapes in air conditioners, various types of air conditioners have been used in different occasions or fields, especially in the commercial field. As a type of air conditioner, floor-standing cranes have been more and more widely used.

[0003] The heat exchange fan is an important component that affects the air volume of the crane. The crane is usually equipped with multiple heat exchange fans working synchronously to ensure that the crane has a large air volume, thereby improving the heat exchange performance of the crane. The heat exchange fan is usually installed in a volute, and one volute is usually equipped with one heat exchange fan. Therefore, the crane needs to be equipped with multiple volutes to install the heat exchange fan. In some cranes, multiple heat exchange fans are operated by the same drive motor to save the number of drive motors and simplify the overall structure.

[0004] At present, due to the limitation of the external size of the crane, the air inlet area is limited. During the operation of the crane, the air inlet area is restricted, the indoor air inlet range is small, and the air volume of the heat exchange air flow is small. If a conventional size volute is used, the air intake volume will be seriously affected, resulting in low efficiency of the crane in regulating the indoor temperature. Utility Model Content

[0005] The utility model solves one of the technical problems in the related art at least to a certain extent.

[0006] To this end, the present application aims to provide an air conditioner that adopts a short volute and a short fan structure, which not only saves material costs, but also increases the air inlet area, effectively increases the air inlet volume, and improves the air inlet uniformity and air outlet uniformity.

[0007] In order to achieve the above object, the utility model provides an air conditioner, comprising:

[0008] A shell, wherein a first inner cavity and a second inner cavity are arranged inside the shell along the width direction thereof, an indoor air inlet is opened at the lower part of the shell, and an indoor air outlet is opened at the front side of the shell;

[0009] a heat exchanger, the heat exchanger being disposed in the second inner cavity, the heat exchanger being used to heat the air passing through the heat exchanger to form a heat exchange airflow;

[0010] A volute, wherein the number of the volutes is multiple, and the multiple volutes are arranged in the first inner cavity at intervals along the length direction of the shell;

[0011] Heat exchange fans, the number of the heat exchange fans is the same as the number of the volutes, the multiple heat exchange fans are arranged in the multiple volutes in a one-to-one correspondence, and the axial direction of the heat exchange fans is the same as the length direction of the shell;

[0012] a driving motor, the driving motor being disposed in the first inner cavity and being used for driving each of the heat exchange fans to rotate;

[0013] A connecting shaft, the number of the connecting shafts is two, the two connecting shafts are coaxially connected to the two ends of the driving motor respectively, and each connecting shaft coaxially penetrates and is connected to each heat exchange fan;

[0014] The diameter of the heat exchange fan is D, and the length of the volute along the length direction of the shell is b, wherein b and D satisfy the relationship: b=(1.25-1.35)D.

[0015] In the technical solution, the use of a short volute reduces material costs on the one hand, and on the other hand ensures that the volute spacing increases by about 11.6%, increasing the air inlet area, effectively increasing the air inlet volume, and increasing the air inlet volume by 2.3%, ensuring sufficient air intake, ensuring the uniformity of wind speed on the windward side of the heat exchanger, and improving the air inlet uniformity and air outlet uniformity.

[0016] In addition, the present application also provides an air conditioner, which includes:

[0017] A shell, wherein a first inner cavity and a second inner cavity are arranged inside the shell along the width direction thereof, an indoor air inlet is opened at the lower part of the shell, and an indoor air outlet is opened at the front side of the shell;

[0018] a heat exchanger, the heat exchanger being disposed in the second inner cavity, the heat exchanger being used to heat the air passing through the heat exchanger to form a heat exchange airflow;

[0019] A volute, wherein the number of the volutes is multiple, and the multiple volutes are arranged in the first inner cavity at intervals along the length direction of the shell;

[0020] Heat exchange fans, the number of the heat exchange fans is the same as the number of the volutes, the multiple heat exchange fans are arranged in the multiple volutes in a one-to-one correspondence, and the axial direction of the heat exchange fans is the same as the length direction of the shell;

[0021] a driving motor, the driving motor being disposed in the first inner cavity and being used for driving each of the heat exchange fans to rotate;

[0022] A connecting shaft, the connecting shaft is coaxially connected to the driving motor, and the connecting shaft coaxially passes through and is connected to each of the heat exchange fans;

[0023] The diameter of the heat exchange fan is D, and the length of the volute along the length direction of the shell is b, wherein b and D satisfy the relationship: b=(1.25-1.35)D.

[0024] In the technical solution, the use of a short volute reduces the material cost of the heat exchange fan and volute on the one hand, and on the other hand, increases the air inlet area, effectively increases the air inlet volume, ensures the uniformity of the wind speed on the windward side of the heat exchanger, and improves the air inlet uniformity and air outlet uniformity.

[0025] In some embodiments of the present application, the distance between any two adjacent volutes located on the same connecting shaft is B, and B and D satisfy the relationship: B=(0.56~0.63)D.

[0026] In some embodiments of the present application, the distance between the volute close to the drive motor and the drive motor is G, and G and D satisfy the relationship: G=(0.24~0.265)D.

[0027] In some embodiments of the present application, a first equipment cavity is further included, wherein the first equipment cavity is connected to the first inner cavity, and the distribution direction of the first equipment cavity and the first inner cavity is arranged along the length direction of the shell. The length of the first equipment cavity along the length direction of the shell is A, and A and D satisfy the relationship: A=(0.55-0.6)D.

[0028] In some embodiments of the present application, a second equipment cavity is further included, which is connected to the first inner cavity. The second equipment cavity is arranged on a side of the first inner cavity away from the first equipment cavity. The length of the second equipment cavity along the length direction of the shell is F, and F and D satisfy the relationship: F=1.09D.

[0029] In some embodiments of the present application, the volute includes a first half shell and a second half shell connected to each other, the length of the first half shell along the length direction of the shell is b, and the length of the second half shell along the length direction of the shell is b.

[0030] In some embodiments of the present application, the heat exchange fan is a centrifugal fan, and the heat exchange fan includes a hub and blades, the blades are coaxially connected to the circumferential side of the hub, and D is the maximum outer diameter of the blades.

[0031] In some embodiments of the present application, the volute has a volute air inlet, and an air guide ring is provided at the volute air inlet, and the diameter of the air guide ring is smaller than the diameter of the heat exchange fan.

[0032] In some embodiments of the present application, an air inlet grille is provided at the indoor air inlet, and the air inlet grille is used to prevent debris from entering the shell through the indoor air inlet.

[0033] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic diagram of the overall structure of an air conditioner according to an embodiment of the present application;

[0035] Figure 2 is a top view of the overall structure of an air conditioner according to an embodiment of the present application;

[0036] Figure 3 The air conditioner according to the embodiment of the present application Figure 2 Section view in the AA direction;

[0037] Figure 4 is a schematic diagram of a partial structure of a driving motor of an air conditioner according to an embodiment of the present application;

[0038] Figure 5 is a schematic diagram of a partial structure of a volute of an air conditioner according to an embodiment of the present application;

[0039] Figure 6 It is a schematic diagram of the local structure of the connecting shaft of the air conditioner according to the embodiment of the present application;

[0040] Figure 7 It is a front view of the local structure of the volute of the air conditioner according to the embodiment of the present application;

[0041] Figure 8 It is a front view of a local structure of a driving motor of an air conditioner according to an embodiment of the present application;

[0042] Fig. 9 is a schematic diagram of a partial structure of a volute of an air conditioner according to an embodiment of the present application;

[0043] Fig.10 It is a front view of the local structure of the connecting shaft of the air conditioner according to the embodiment of the present application;

[0044] Fig.11 The air conditioner according to the embodiment of the present application Fig.10 Cross-sectional view in the middle BB direction;

[0045] Fig.12 is a side view of a local structure of a volute of an air conditioner according to an embodiment of the present application;

[0046] Fig.13 It is a schematic diagram of the local structure of the heat exchange fan of the air conditioner according to the implementation mode of the present application.

[0047] In the above figures: 100, shell; 101, indoor air inlet; 102, indoor air outlet; 200, heat exchanger; 300, volute; 301, first half shell; 302, second half shell; 303, volute air inlet; 304, volute air outlet; 305, air guide ring; 400, heat exchange fan; 401, hub; 402, fan blades; 500, drive motor; 600, connecting shaft; 700, first equipment cavity; 800, second equipment cavity; 900, air inlet grille. DETAILED DESCRIPTION

[0048] In the description of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "on" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] In the present utility model, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0052] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.

[0053] In the present application, the air conditioner performs a refrigeration cycle of the air conditioner indoor unit by using a compressor, a condenser, an expansion valve and an indoor heat exchanger. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation, and supplies refrigerant to the conditioned and heat-exchanged air.

[0054] The compressor compresses the refrigerant gas at low temperature and low pressure and discharges the refrigerant gas at high temperature and high pressure. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into liquid phase, and the heat is released to the surrounding environment through the condensation process. The expansion valve expands the liquid phase refrigerant at high temperature and high pressure condensed in the condenser into a low pressure liquid phase refrigerant.

[0055] The indoor heat exchanger evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low temperature and low pressure state to the compressor. The indoor heat exchanger can achieve a refrigeration effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled.

[0056] In the whole cycle, the air conditioner indoor unit can adjust the temperature of the indoor space. The outdoor unit of the air conditioner indoor unit refers to the part of the refrigeration cycle including the compressor and the outdoor heat exchanger, the indoor unit of the air conditioner indoor unit includes the indoor heat exchanger, and the expansion valve can be provided in the indoor unit or the outdoor unit.

[0057] The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an indoor heat exchanger. When the indoor heat exchanger functions as a condenser, the air conditioner indoor unit functions as a heater in a heating mode, and when the indoor heat exchanger functions as an indoor heat exchanger, the air conditioner indoor unit functions as a cooler in a cooling mode.

[0058] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

[0059] As attached Figures 1 to 6 As shown, in an exemplary embodiment of the air conditioner of the utility model, the air conditioner includes a housing 100, a first inner cavity and a second inner cavity are arranged inside the housing 100 along its width direction, an indoor air inlet 101 is opened at the lower part of the housing 100, and an indoor air outlet 102 is opened at the front side of the housing 100. The first inner cavity and the second inner cavity are connected to each other, the indoor air inlet 101 is connected to the first inner cavity, and the indoor air outlet 102 is connected to the second inner cavity.

[0060] The length direction of the first inner cavity is the same as the length direction of the shell 100 , and the length direction of the second inner cavity is the same as the length direction of the shell 100 .

[0061] The air conditioner includes a heat exchanger 200, which is disposed in the second inner cavity. The heat exchanger 200 is used to heat the air passing through it to form a heat exchange airflow.

[0062] The air conditioner includes a volute 300 . The volute 300 is in multiple numbers and is arranged in the first inner cavity at intervals along the length direction of the housing 100 .

[0063] The air conditioner includes a heat exchange fan 400 , the number of which is the same as the number of the volutes 300 , and the plurality of heat exchange fans 400 are disposed in the plurality of volutes 300 in a one-to-one correspondence, and the axial direction of the heat exchange fan 400 is the same as the length direction of the housing 100 .

[0064] The air conditioner includes a driving motor 500 , which is disposed in the first inner cavity and is used to drive each heat exchange fan 400 to rotate.

[0065] The air conditioner includes two connecting shafts 600 . The two connecting shafts 600 are coaxially connected to two ends of the driving motor 500 , respectively. Each connecting shaft 600 coaxially penetrates and is connected to each heat exchange fan 400 .

[0066] The diameter of the heat exchange fan 400 is D, and the length of the volute 300 along the length direction of the housing 100 is b, wherein b and D satisfy the relationship: b=(1.25-1.35)D.

[0067] When b=1.25D, the material cost of the volute 300 and the heat exchange fan 400 can be minimized while ensuring sufficient air flow from the volute 300, and the spacing between the volutes 300 is maximized, thereby increasing the air flow into the volute 300. If b<1.25D, the spacing between the volutes 300 will be too large, the air flow into the volute 300 will be too large, and the air flow out will be too small, resulting in a serious imbalance between the air flow and the air flow, which will cause noise to be generated in the volute 300.

[0068] When b=1.35D, compared with the conventional volute 300 and volute 300 spacing, the spacing between the volutes 300 is increased, and the air intake of the volute 300 is increased, because the length of the conventional volute 300 along the length direction of the housing 100 is greater than 1.35D. If b>1.35D, the size is the same as that of the conventional volute 300, resulting in the volute 300 spacing being too small, which will seriously affect the air intake.

[0069] Through the above technical solution, the use of a short volute 300 can reduce the material cost on the one hand, and on the other hand ensure that the spacing between the volutes 300 is increased by about 11.6%, thereby increasing the air inlet area and effectively improving the air inlet volume. The air inlet volume is increased by 2.3%, which ensures sufficient air intake and ensures the uniformity of the wind speed on the windward side of the heat exchanger 200, thereby improving the air inlet uniformity and air outlet uniformity.

[0070] As attached Figure 7 As shown, in some embodiments, the distance between any two adjacent volutes 300 located on the same connecting shaft 600 is B, and B and D satisfy the relationship: B=(0.56-0.63)D.

[0071] When B=0.56D, the air intake of the volute 300 can be guaranteed to be sufficient without affecting the air output of the volute 300. If B<0.56D, the spacing of the volute 300 is too small, which will seriously affect the air intake.

[0072] When B=0.63D, the air intake of the volute 300 is sufficient without affecting the air output of the volute 300. If B>0.63D, the distance between the volutes 300 is too large, the air intake of the volute 300 is too large, and the air output is too small, which causes noise in the volute 300.

[0073] As attached Figures 8 to 11 As shown, in some embodiments, the driving motor 500 is a dual-axis motor, and the axial direction of the driving motor 500 is arranged along the length direction of the shell 100; the heat exchange fans 400 are configured as an even number, and the heat exchange fans 400 arranged along the length direction of the shell 100 are symmetrically arranged on both sides of the axial direction of the driving motor 500; so that the driving motor 500 can simultaneously drive the heat exchange fans 400 located on both sides of its axial direction to operate.

[0074] In some embodiments, the number of the heat exchange fans 400 is four, and two heat exchange fans 400 are coaxially connected to each connecting shaft 600 .

[0075] In some embodiments, bearing components are connected to both axial ends of the connecting shaft 600, and the bearing components are used to support the connecting shaft 600 to rotate.

[0076] In order to install the driving motor 500 and the bearing component, the housing 100 is provided with a motor mounting portion and a bearing mounting portion, which are respectively arranged in the first inner cavity, wherein the motor mounting portion is used to install the driving motor 500700; and the bearing mounting portion is used to install the bearing component.

[0077] In some embodiments, the length of the drive motor 500 along the length direction of the housing 100 is q, the distance between the two volutes 300 close to the drive motor 500 is C, and C, q and D satisfy the relationship: Cq=(0.48~0.53)D.

[0078] In some embodiments, a first equipment cavity 700 is further included, the first equipment cavity 700 is connected to the first inner cavity, the distribution direction of the first equipment cavity 700 and the first inner cavity is arranged along the length direction of the housing 100, the side wall of the first equipment cavity 700 close to the first inner cavity is attached to the side wall of the volute 300, the length of the first equipment cavity 700 along the length direction of the housing 100 is A, and A and D satisfy the relationship: A = (0.55-0.6) D. The first equipment cavity 700 is arranged on the left side of the first inner cavity, and a drainage pipe is arranged in the first equipment cavity 700.

[0079] When A=0.55D, it can be ensured that the installation of the drain pipe in the first equipment cavity 700 does not affect the air intake of the volute 300 near the first equipment cavity 700. If A<0.55D, the installation of the drain pipe in the first equipment cavity 700 will be affected or the installation of the drain pipe will block the air intake of the nearby volute 300.

[0080] When A=0.6D, it can be ensured that the installation of the drainage pipe in the first equipment cavity 700 does not affect the air intake of the volute 300 close to the first equipment cavity 700. If A>0.6D, the length of the first equipment cavity 700 will be too large, resulting in a waste of space. Since the length of the housing 100 is fixed, the length of the first inner cavity is too small, resulting in a too small spacing between the volutes 300, which affects the air intake.

[0081] A water receiving pan is provided below the heat exchanger 200 . A drainage hole is provided on the water receiving pan. The drainage hole is connected to a drainage pipe to drain the condensed water in the water receiving pan.

[0082] In some embodiments, a second equipment chamber 800 is further included, and the second equipment chamber 800 is connected to the first inner chamber. The second equipment chamber 800 is arranged on a side of the first inner chamber away from the first equipment chamber 700. The side wall of the second equipment chamber 800 close to the first inner chamber is attached to the side wall of the volute 300. The length of the second equipment chamber 800 along the length direction of the shell 100 is F, and F and D satisfy the relationship: F=1.09D.

[0083] In some embodiments, the second equipment cavity 800 is disposed on the right side of the first inner cavity, and a water pump is disposed in the second equipment cavity 800 .

[0084] In some embodiments, the air conditioner includes an air guide plate, which is rotatably disposed at the indoor air outlet 102 to open or close the indoor air outlet 102 .

[0085] In some embodiments, the air conditioner includes an air inlet grille 900 , which is disposed at the indoor air inlet 101 to prevent dust or debris from entering the interior of the housing 100 through the indoor air inlet 101 .

[0086] In addition, the present application also provides an air conditioner, which includes a housing 100, wherein the housing 100 has a first inner cavity and a second inner cavity arranged along its width direction, an indoor air inlet 101 is provided at the lower part of the housing 100, and an indoor air outlet 102 is provided at the front side of the housing 100. The housing 100 is generally rectangular in structure.

[0087] The air conditioner includes a heat exchanger 200, which is disposed in the second inner cavity. The heat exchanger 200 is used to heat the air passing through it to form a heat exchange airflow. The heat exchanger 200 is located in the second inner cavity, and is used to contact the air in the second inner cavity and heat the air passing through the heat exchanger 200 to form air-conditioned air to meet the user's cooling or heating needs. The heat exchanger 200 is disposed near the indoor air outlet 102.

[0088] The air conditioner includes a volute 300 . The volute 300 is in multiple numbers and is arranged in the first inner cavity at intervals along the length direction of the housing 100 .

[0089] The air conditioner includes a heat exchange fan 400, the number of which is the same as the number of the volutes 300, and the plurality of heat exchange fans 400 are arranged in the plurality of volutes 300 in a one-to-one correspondence, and the axial direction of the heat exchange fan 400 is the same as the length direction of the housing 100. Through the operation of the heat exchange fan 400, indoor air is introduced into the second inner cavity from the indoor air inlet 101, and after heat exchange in the heat exchanger 200 to form air-conditioned air, it flows into the room through the indoor air outlet 102.

[0090] A plurality of heat exchange fans 400 are arranged along the length direction of the housing 100 , thereby increasing the amount of air introduced into the first inner cavity.

[0091] The air conditioner includes a driving motor 500 , which is disposed in the first inner cavity and is used to drive each heat exchange fan 400 to rotate.

[0092] The air conditioner includes a connecting shaft 600 , which is coaxially connected to the driving motor 500 , and the connecting shaft 600 coaxially penetrates and is connected to each heat exchange fan 400 .

[0093] The diameter of the heat exchange fan 400 is D, and the length of the volute 300 along the length direction of the housing 100 is b, wherein b and D satisfy the relationship: b=(1.25-1.35)D.

[0094] Through the above technical solution, the use of a short volute 300 can reduce the material cost on the one hand, and the material cost of the heat exchange fan 400 and the volute 300 is reduced by about 0.8 to 0.9 yuan. On the other hand, it can increase the air inlet area, effectively increase the air inlet volume, ensure the uniformity of the wind speed on the windward surface of the heat exchanger 200, and improve the air inlet uniformity and air outlet uniformity.

[0095] In some embodiments, a filter is provided at the indoor air inlet 101 to filter the air entering the housing 100 from the indoor air inlet 101 .

[0096] In some embodiments, the distance between any two adjacent volutes 300 is B, and B and D satisfy the relationship: B=(0.56-0.63)D.

[0097] In some embodiments, the distance between the volute 300 close to the driving motor 500 and the driving motor 500 is G, and G and D satisfy the relationship: G=(0.24-0.265)D.

[0098] When G=0.24D, the setting of the drive motor 500 will not block the air intake of the nearby volute 300, ensuring that the air intake of the volute 300 near the drive motor 500 is sufficient. If G<0.24D, the setting of the drive motor 500 will block the air intake of the nearby volute 300, affecting the air intake of the volute 300.

[0099] When G=0.265D, the setting of the drive motor 500 will not block the air intake of the nearby volute 300, ensuring that the air intake of the volute 300 near the drive motor 500 is sufficient. If G>0.265D, the distance between the drive motor 500 and the volute 300 will be too large, resulting in too large air intake and too small air discharge of the volute 300 near the drive motor 500, which will cause noise to be generated in the volute 300.

[0100] In some embodiments, a first equipment cavity 700 is further included, and the first equipment cavity 700 is connected to the first inner cavity. The distribution direction of the first equipment cavity 700 and the first inner cavity is set along the length direction of the shell 100. The length of the first equipment cavity 700 along the length direction of the shell 100 is A, and A and D satisfy the relationship: A=(0.55-0.6)D.

[0101] In some embodiments, a second equipment cavity 800 is further included, which is connected to the first inner cavity. The second equipment cavity 800 is arranged on a side of the first inner cavity away from the first equipment cavity 700. The length of the second equipment cavity 800 along the length direction of the shell 100 is F, and F and D satisfy the relationship: F=1.09D.

[0102] As attached Figure 12 to Figure 13 As shown, in some embodiments, the volute 300 includes a first half shell 301 and a second half shell 302 connected to each other, the first half shell 301 has a length b along the length direction of the housing 100 , and the second half shell 302 has a length b along the length direction of the housing 100 .

[0103] The first half shell 301 and the second half shell 302 are arranged relatively to each other and jointly define an installation cavity for installing the heat exchange fan 400. The volute 300 includes a volute air inlet 303 and a volute air outlet 304. The volute air inlet 303 is connected to the first inner cavity, and the volute air outlet 304 is connected to the second inner cavity. Through the operation of the heat exchange fan 400, the indoor air is introduced into the first inner cavity from the indoor air inlet 101, introduced into the installation cavity through the volute air inlet 303, and enters the second inner cavity from the volute air outlet 304. After entering the second inner cavity, the indoor air contacts the heat exchanger 200 and is heat-exchanged by the heat exchanger 200 to form air-conditioned wind.

[0104] The second half shell 302 is also provided with a fan mounting portion, which is used to mount the heat exchange fan 400, and the fan mounting portion is located in the mounting cavity.

[0105] The plurality of heat exchange fans 400 are driven by the same driving motor 500. The heat exchange fans 400 are connected to a connecting shaft 600. The axial direction of the connecting shaft 600 is arranged in the same direction as the axial direction of the heat exchange fans 400. The heat exchange fans 400 arranged along the length direction of the housing 100 are connected by the connecting shaft 600. The driving motor 500 is connected to the connecting shaft 600. The driving motor 500 drives the heat exchange fans 400 arranged along the length direction of the housing 100 to rotate simultaneously through the connecting shaft 600. By setting one driving motor 500 to drive the plurality of heat exchange fans 400 to rotate simultaneously, not only the amount of indoor air introduced into the first inner cavity can be saved, but also the number of driving motors 500 can be saved, thereby saving energy.

[0106] Although the plurality of heat exchange fans 400 are driven and operated by the same driving motor 500 , the heat exchange fans 400 are respectively arranged in corresponding installation cavities and perform air induction work independently of each other.

[0107] In some embodiments, the heat exchange fan 400 is a centrifugal fan, and the heat exchange fan 400 includes a hub 401 and blades 402 . The blades 402 are coaxially connected to the circumference of the hub 401 , and D is the maximum outer diameter of the blades 402 .

[0108] In some embodiments, the volute 300 has a volute air inlet 303 , and an air guide ring 305 is provided at the volute air inlet 303 . The diameter of the air guide ring 305 is smaller than the diameter of the heat exchange fan 400 .

[0109] In some embodiments, an air inlet grille 900 is provided at the indoor air inlet 101, and the air inlet grille 900 is used to prevent debris from entering the housing 100 through the indoor air inlet 101. In order to facilitate opening the indoor air inlet 101, the air inlet grille 900 is provided at the indoor air inlet 101 in an openable and closable manner.

[0110] In some embodiments, multiple air inlet grilles 900 are configured, and the multiple air inlet grilles 900 are distributed along the length direction of the shell 100. By setting multiple air inlet grilles 900, when inspecting the heat exchange fan 400, only the air inlet grilles 900 at the heat exchange fan 400 that needs to be inspected can be opened, without opening all of them, which is convenient and quick.

[0111] In some embodiments, the air conditioner can be installed on the indoor top, the thickness direction of the housing 100 is arranged in the vertical direction, the indoor air inlet 101 is arranged downward, and the indoor air outlet 102 is arranged in the horizontal direction. The air conditioner can also be installed on a wall, the height direction of the housing 100 is arranged in the vertical direction, the indoor air outlet 102 is arranged upward, the indoor air inlet 101 is arranged in the horizontal direction, and the second inner cavity is located above the first inner cavity.

[0112] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An air conditioner, characterized in that: It includes: A shell, wherein a first inner cavity and a second inner cavity are arranged inside the shell along the width direction thereof, an indoor air inlet is opened at the lower part of the shell, and an indoor air outlet is opened at the front side of the shell; a heat exchanger, the heat exchanger being disposed in the second inner cavity, the heat exchanger being used to heat the air passing through the heat exchanger to form a heat exchange airflow; A volute, wherein the number of the volutes is multiple, and the multiple volutes are arranged in the first inner cavity at intervals along the length direction of the shell; Heat exchange fans, the number of the heat exchange fans is the same as the number of the volutes, the multiple heat exchange fans are arranged in the multiple volutes in a one-to-one correspondence, and the axial direction of the heat exchange fans is the same as the length direction of the shell; a driving motor, the driving motor being disposed in the first inner cavity and being used for driving each of the heat exchange fans to rotate; A connecting shaft, the number of the connecting shafts is two, the two connecting shafts are coaxially connected to the two ends of the driving motor respectively, and each connecting shaft coaxially penetrates and is connected to each heat exchange fan; The diameter of the heat exchange fan is D, and the length of the volute along the length direction of the shell is b, wherein b and D satisfy the relationship: b=(1.25-1.35)D.

2. An air conditioner, characterized in that: It includes: A shell, wherein a first inner cavity and a second inner cavity are arranged inside the shell along the width direction thereof, an indoor air inlet is opened at the lower part of the shell, and an indoor air outlet is opened at the front side of the shell; a heat exchanger, the heat exchanger being disposed in the second inner cavity, the heat exchanger being used to heat the air passing through the heat exchanger to form a heat exchange airflow; A volute, wherein the number of the volutes is multiple, and the multiple volutes are arranged in the first inner cavity at intervals along the length direction of the shell; Heat exchange fans, the number of the heat exchange fans is the same as the number of the volutes, the multiple heat exchange fans are arranged in the multiple volutes in a one-to-one correspondence, and the axial direction of the heat exchange fans is the same as the length direction of the shell; a driving motor, the driving motor being disposed in the first inner cavity and being used for driving each of the heat exchange fans to rotate; A connecting shaft, the connecting shaft is coaxially connected to the driving motor, and the connecting shaft coaxially passes through and is connected to each of the heat exchange fans; The diameter of the heat exchange fan is D, and the length of the volute along the length direction of the shell is b, wherein b and D satisfy the relationship: b=(1.25-1.35)D.

3. The air conditioner according to claim 1 or 2, characterized in that: The distance between any two adjacent volutes on the same connecting shaft is B, and B and D satisfy the relationship: B=(0.56-0.63)D.

4. The air conditioner according to claim 1 or 2, characterized in that: The distance between the volute close to the drive motor and the drive motor is G, and G and D satisfy the relationship: G=(0.24~0.265)D.

5. The air conditioner according to claim 1 or 2, characterized in that: It also includes a first equipment cavity, which is connected to the first inner cavity. The distribution direction of the first equipment cavity and the first inner cavity is set along the length direction of the shell. The length of the first equipment cavity along the length direction of the shell is A, and A and D satisfy the relationship: A=(0.55-0.6)D.

6. The air conditioner according to claim 5, characterized in that: It also includes a second equipment cavity, which is connected to the first inner cavity and is arranged on a side of the first inner cavity away from the first equipment cavity. The length of the second equipment cavity along the length direction of the shell is F, and F and D satisfy the relationship: F=1.09D.

7. The air conditioner according to claim 1 or 2, characterized in that: The volute comprises a first half shell and a second half shell connected to each other, wherein the first half shell has a length b along the length direction of the shell, and the second half shell has a length b along the length direction of the shell.

8. The air conditioner according to claim 1 or 2, characterized in that: The heat exchange fan is a centrifugal fan, comprising a hub and blades, wherein the blades are coaxially connected to the circumference of the hub, and D is the maximum outer diameter of the blades.

9. The air conditioner according to claim 1 or 2, characterized in that: The volute has a volute air inlet, and an air guide ring is arranged at the volute air inlet. The diameter of the air guide ring is smaller than the diameter of the heat exchange fan.

10. The air conditioner according to claim 1 or 2, characterized in that: An air inlet grille is provided at the indoor air inlet, and the air inlet grille is used to prevent debris from entering the shell through the indoor air inlet.

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