Top air outlet type air conditioner outdoor unit

Abstract

The utility model discloses a top air outlet type air conditioner outdoor unit, and relates to the technical field of air conditioners. The top air outlet type air conditioner outdoor unit comprises a machine shell, an outdoor heat exchanger, a compressor, a driving motor and a heat exchange fan. The heat exchange fan comprises a hub and a plurality of blades, and at least part of the blades are distributed along the circumference of the hub and connected to the hub. One end of each blade is connected to the hub, and the other end of each blade extends in the direction away from the hub. The hub further comprises a base and a pressing block; the base is connected to a rotating shaft of the driving motor; the mounting part is arranged at the outer edge of the base and is used for mounting the blades; the pressing block is detachably arranged in the mounting part and used for restraining the blade so that the blade can be fixedly connected with the base. According to the top air outlet type air conditioner outdoor unit, the hub is designed to be of a split type structure comprising the base and the pressing block, so that deformation generated in the hub production process is reduced, and the blades are conveniently assembled on the hub.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a top-outlet air conditioning outdoor unit. Background Art

[0002] The heat exchange fan is an important part of the indoor unit of the air conditioner. It plays an important role in the normal operation and energy efficiency improvement of the outdoor unit of the air conditioner. The heat exchange fan drives the air to circulate through the surface of the outdoor unit heat exchanger to achieve air heat exchange and condenser heat dissipation. The operation of the heat exchange fan can also speed up the heat exchange efficiency between the air and the radiator.

[0003] In the outdoor unit of the top-discharge air conditioner, the heat exchange fan is usually an axial flow fan, which usually includes blades, hubs, etc. The blades and hubs usually adopt a split structure, and the hub is usually formed by stamping metal sheets. The hub is prone to deformation after pressing, resulting in a large deviation between the actual value and the design value of the hub-related parameters, which increases the difficulty of assembling the blades and the hub. Therefore, in the process of making the hub, it is usually necessary to repeatedly repair the mold to ensure the accuracy of the hub-related parameters, which will undoubtedly increase the production cost of the hub. In some outdoor units of top-discharge air conditioners, the hub and blades adopt an integrated structure. This method does not require the assembly of the blades and the hub, and can avoid the assembly trouble caused by the deformation of the hub. However, the size of the mold for making the hub and blades is large, and the mold cost is high.

[0004] In view of this, this application is filed. Utility Model Content

[0005] In view of the shortcomings existing in the related art, the present application provides a top-discharge air-conditioning outdoor unit, which facilitates the assembly of blades and the hub by designing the hub as a split structure, and can avoid the problem of blades being unable to be assembled with the hub due to deformation of the hub.

[0006] The present application provides a top-outlet air-conditioning outdoor unit, comprising:

[0007] The casing comprises a casing air outlet and a casing air inlet, wherein the casing air outlet is arranged at the top of the casing, and the casing air inlet is arranged at the outer periphery of the casing;

[0008] An outdoor heat exchanger is arranged inside the casing, and the outdoor heat exchanger is arranged close to the air inlet of the casing;

[0009] A compressor is disposed inside the casing;

[0010] A driving motor is arranged inside the casing and mounted on the casing; the rotating shaft of the driving motor is arranged downward;

[0011] A heat exchange fan is arranged inside the casing and near the air outlet of the casing; at least part of the heat exchange fan is located above the compressor, and at least part of the heat exchange fan is located below the drive motor;

[0012] The heat exchange fan includes a hub and a plurality of blades, at least some of which are distributed along the circumference of the hub and connected to the hub; one end of the blade is connected to the hub, and the other end of the blade extends in a direction away from the hub;

[0013] Characterized in that the wheel hub further comprises:

[0014] A base connected to the rotating shaft of the driving motor;

[0015] A mounting portion is arranged at the outer edge of the base; the mounting portion includes a mounting portion opening, the mounting portion opening is arranged at the top of the base and extends to the outer periphery of the base; one end of the blade connected to the hub is arranged in the mounting portion;

[0016] The pressing block is detachably arranged in the mounting portion and is used to constrain the blade to the mounting portion.

[0017] The technical solution designs the hub as a split structure including a base and a pressure block, sets a mounting portion on the base, sets the blade in the mounting portion, and uses the pressure block to apply a restraining force to the blade so that the blade is firmly set in the mounting portion, thereby realizing the connection between the blade and the hub.

[0018] In some of the embodiments, the base is provided with a first blocking portion, which is arranged on the bottom surface of the protruding mounting portion; a gap is provided between the first blocking portion and the side wall of the mounting portion opening toward the mounting portion to define a first accommodating portion; an extension portion is provided at one end of the blade arranged in the mounting portion, the extension portion is arranged corresponding to the first accommodating portion, and the first blocking portion is used to constrain the extension portion within the first accommodating portion.

[0019] In some embodiments, one end of the pressing block facing the blade contacts the first blocking portion, so that there is a distance between the pressing block and the bottom surface of the mounting portion and they jointly define a passing portion, and at least part of the blade is passed through the passing portion.

[0020] In some of the embodiments, the base is connected to a cover plate, which is disposed on the top of the base and the top of the pressing block to constrain the pressing block in the mounting portion.

[0021] In some of the embodiments, a reinforcing portion is provided at one end of the pressing block connected to the cover plate, and the reinforcing portion and a side of the cover plate facing the pressing block are in contact with and connected to each other.

[0022] In some of the embodiments, the base is provided with a sinking portion, and the mounting portion is arranged to penetrate the sinking portion along the height direction of the casing; the reinforcing portion is arranged in the sinking portion to locate the connection position of the pressing block and the base.

[0023] In some of the embodiments, a second accommodating portion is provided on the top of the base, and a protruding portion is provided on the reinforcing portion. The protruding portion is provided in the second accommodating portion to locate the connection position between the pressing block and the base.

[0024] In some embodiments, the second accommodating portion is located in the sinking portion; the base is provided with a second blocking portion, the second blocking portion protrudes from the bottom surface of the sinking portion and is arranged corresponding to the second accommodating portion, and the second blocking portion is used to constrain the protruding portion in the second accommodating portion.

[0025] In some of the embodiments, the cover plate is provided with a first connection portion, the pressure block is provided with a second connection portion, and the base is provided with a third connection portion. The first connection portion, the second connection portion, and the third connection portion are correspondingly arranged along the height direction of the casing. The first connection portion, the second connection portion, and the third connection portion are connected with the same fastener to connect the cover plate, the pressure block, and the base to each other.

[0026] In addition, the present application also provides a top-outlet air-conditioning outdoor unit, comprising:

[0027] The casing comprises a casing air outlet and a casing air inlet, wherein the casing air outlet is arranged at the top of the casing, and the casing air inlet is arranged at the outer periphery of the casing;

[0028] An outdoor heat exchanger is arranged inside the casing, and the outdoor heat exchanger is arranged close to the air inlet of the casing;

[0029] A compressor is disposed inside the casing;

[0030] The driving motor is arranged inside the casing and mounted on the casing wall where the casing air outlet is opened; the rotating shaft of the driving motor is arranged downward;

[0031] A heat exchange fan is arranged inside the casing and connected to the rotating shaft of the driving motor. The heat exchange fan is arranged near the air outlet of the casing. The heat exchange fan includes:

[0032] blade;

[0033] a wheel hub connected to the rotating shaft of the motor;

[0034] A mounting portion, which is arranged on the hub and is used to mount the blades;

[0035] A pressure block is arranged in the mounting portion and is used to impose constraints on the blade;

[0036] One end of the blade is arranged in the mounting portion and is constrained by the pressing block, and the other end of the blade extends in a direction away from the hub.

[0037] In the above embodiment, a top-discharge air-conditioning outdoor unit designs a hub as a split structure including a base and a pressure block, a mounting portion is provided on the base, blades are disposed in the mounting portion, and a restraining force is applied to the blades by the pressure block so that the blades are firmly disposed in the mounting portion, thereby realizing the connection between the blades and the hub; not only can the assembly of the blades and the hub be facilitated, but also the problem of the blades being unable to be assembled with the hub due to deformation of the hub can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the structure of an embodiment of the top-outlet air-conditioning outdoor unit of the utility model. Figure 1 ;

[0039] Figure 2 This is a schematic diagram of the structure of an embodiment of the top-outlet air-conditioning outdoor unit of the utility model. Figure 2 ;

[0040] Figure 3 It is a structural schematic diagram of an embodiment of a top-outlet air-conditioning outdoor unit of the utility model when a fan cover is not assembled;

[0041] Figure 4 It is a structural schematic diagram of an embodiment of the top-outlet air-conditioning outdoor unit of the utility model when the top cover, fan cover and electric control box are not assembled;

[0042] Figure 5 It is a structural schematic diagram of the assembly of the top cover and the heat exchange fan of an embodiment of the top-outlet air-conditioning outdoor unit of the utility model;

[0043] Figure 6 It is a structural schematic diagram of a heat exchange fan in one embodiment of a top-outlet air-conditioning outdoor unit of the utility model;

[0044] Figure 7 It is a cross-sectional view of a heat exchange fan in one embodiment of a top-outlet air-conditioning outdoor unit of the utility model;

[0045] Figure 8 yes Figure 7 A partial enlarged view of the middle part;

[0046] Fig. 9 It is a structural schematic diagram of a heat exchange fan in one embodiment of a top-outlet air-conditioning outdoor unit of the utility model from another angle;

[0047] Fig.10 It is a structural schematic diagram of a cover plate in one embodiment of a top-outlet air-conditioning outdoor unit of the utility model;

[0048] Fig.11 It is a structural schematic diagram of a base in one embodiment of a top-outlet air-conditioning outdoor unit of the utility model;

[0049] Fig.12 It is a structural schematic diagram of a pressing block in an embodiment of a top-outlet air-conditioning outdoor unit of the utility model;

[0050] Fig.13 It is a structural schematic diagram of the assembly of the chassis and blades in one embodiment of the top-outlet air-conditioning outdoor unit of the utility model;

[0051] Fig.14 yes Fig.13 A partial enlarged view of point B in the middle;

[0052] Fig.15 It is a structural schematic diagram of an embodiment of a top-outlet air-conditioning outdoor unit of the utility model when the heat exchange fan is not equipped with a cover plate;

[0053] Fig.16 yes Fig.15 A partial enlarged view of point C in the middle.

[0054] In the figure,

[0055] 100, housing; 200, fan cover; 300, electric control box; 400, heat exchange fan; 500, drive motor; 600, compressor; 700, outdoor heat exchanger;

[0056] 101. Air outlet of the casing; 102. Air inlet of the casing;

[0057] 110, top cover; 120, side panel; 130, chassis;

[0058] 111. Air guide ring;

[0059] 410, cover plate; 420, blade; 430, base; 440, pressing block;

[0060] 411, first connecting portion; 412, fourth connecting portion; 413, avoidance portion; 414, first positioning portion;

[0061] 421, extension;

[0062] 431, third connecting portion; 432, reinforcing rib; 433, fifth connecting portion; 434, mounting portion; 435, first blocking portion; 436, first accommodating portion; 437, second blocking portion; 438, second accommodating portion; 439, extending portion; 4310, second positioning portion;

[0063] 441. Second connecting portion; 442. Raised portion; 443. Reinforced portion; 444. Passing portion. DETAILED DESCRIPTION

[0064] In order to make the purpose and implementation method of the present application clearer, the exemplary implementation method of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0065] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0066] The terms "first", "second", "third", etc. in the specification and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances.

[0067] The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0068] The top-outlet air-conditioning outdoor unit provided in the embodiments of the present application may have various implementation forms. Figure 1-Figure 16 It is a specific implementation of the top-outlet air-conditioning outdoor unit of the present application.

[0069] like Figure 1 and Figure 2 As shown, the top-outlet air-conditioning outdoor unit provided in the present application includes a casing 100, and the casing 100 is used to form the overall appearance of the air-conditioning outdoor unit; the top of the casing 100 and the bottom of the casing 100 are opposite ends, and the height direction of the casing 100 is from the bottom of the casing 100 to the top of the casing 100; the left side of the casing 100 and the right side of the casing 100 are opposite sides, and the length direction of the casing 100 is from the left side of the casing 100 to the right side of the casing 100; the front side of the casing 100 and the rear side of the casing 100 are opposite sides, and the thickness direction of the casing 100 is from the front side of the casing 100 to the rear side of the casing 100.

[0070] like Figure 3 As shown, the casing 100 includes a casing air outlet 101 , which is disposed at the top of the casing 100 , and the air inside the casing 100 is output to the outdoors through the casing air outlet 101 .

[0071] In some embodiments, the opening of the housing air outlet 101 is arranged to face upward.

[0072] The casing 100 includes a casing air inlet 102 . The casing air inlet 102 is disposed at the outer periphery of the casing 100 , and outdoor air enters the casing 100 through the casing air inlet 102 .

[0073] In some embodiments, the opening direction of the casing air inlet 102 is arranged to intersect with the opening direction of the casing air outlet 101 .

[0074] like Figure 1-Figure 3 As shown, the housing 100 includes a top cover 110 , which is located at the top of the housing 100 , and a housing air outlet 101 is opened in the top cover 110 .

[0075] In some embodiments, the air outlet 101 of the housing is circular in opening direction and is disposed in the middle portion of the top cover 110 .

[0076] like Figure 1-Figure 4 As shown, the housing 100 includes a side panel 120 , which is connected to the top cover 110 . The side panel 120 is located below the top cover 110 , and the housing air inlet 102 is opened on the side panel 120 .

[0077] In some embodiments, the top cover 110 is detachably connected to the side panel 120 by means of bolts, screws or other components.

[0078] like Figure 1-Figure 4 As shown, the housing 100 includes a bottom plate 130, which is disposed below the side plate 120. The bottom plate 130 and the top cover 110 are disposed correspondingly along the height direction of the housing 100. The bottom plate 130, the side plate 120 and the top cover 110 together define a receiving cavity. The receiving cavity is used to receive components such as an outdoor heat exchanger 700, a compressor 600 and a heat exchange fan 400 disposed inside the housing 100; wherein the housing air inlet 102 and the housing air outlet 101 are respectively connected to the receiving cavity.

[0079] In some embodiments, the bottom plate 130 is a rectangular structure with cut corners, and the housing 100 is a substantially cubic structure.

[0080] like Figure 1-Figure 3 As shown, the top-outlet air-conditioning outdoor unit includes an electric control box 300, which is mounted on the housing 100 and located outside the accommodating cavity. The electric control box 300 is arranged above the cut corner of the chassis 130. The electric control box 300 is provided with electrical components required for the operation of the air-conditioning outdoor unit, which belongs to the prior art in the field and will not be described in detail.

[0081] like Figure 4 As shown, the top-outlet air-conditioning outdoor unit includes an outdoor heat exchanger 700 , which is disposed inside the casing 100 and is used to exchange heat for air passing through the outdoor heat exchanger 700 ; the outdoor heat exchanger 700 is disposed close to the casing air inlet 102 , and the outdoor heat exchanger 700 is installed on the chassis 130 .

[0082] like Figure 4 As shown, the top-outlet air-conditioning outdoor unit includes a compressor 600, which is arranged inside the casing 100 and mounted on the chassis 130. The compressor 600 is used to compress the refrigerant in a low-temperature and low-pressure state into a high-temperature and high-pressure state. The compressor 600, the outdoor heat exchanger 700 and the indoor heat exchanger together form a refrigerant circulation loop, and the refrigerant flows in the refrigerant circulation loop to achieve cooling or heating of the indoor environment by the air conditioner.

[0083] The compressor 600 is arranged in the middle part of the chassis 130, and the outdoor heat exchanger 700 is arranged at the outer edge part of the chassis 130. The outdoor heat exchanger 700 is arranged around the outer periphery of the compressor 600. On the one hand, the area of ​​the outdoor heat exchanger 700 can be increased, and the heat exchange effect of the outdoor heat exchanger 700 can be increased; on the other hand, the outdoor heat exchanger 700 can be arranged close to the air inlet 102 of the casing, so that the air entering the casing 100 can contact the outdoor heat exchanger 700 in time, thereby increasing the heat exchange effect of the outdoor heat exchanger 700.

[0084] like Figure 3 As shown, the top-outlet air-conditioning outdoor unit includes a heat exchange fan 400, which is located in the accommodating cavity and is arranged near the housing air outlet 101. Through the operation of the heat exchange fan 400, outdoor air enters the accommodating cavity through the housing air inlet 102, contacts the outdoor heat exchanger 700, and is output to the outdoors through the housing air outlet 101.

[0085] In some embodiments, the heat exchange fan 400 is an axial flow fan, and the heat exchange fan 400 and the housing air outlet 101 are arranged correspondingly along the height direction of the housing 100 .

[0086] In some embodiments, the heat exchange fan 400 is located below the housing air outlet 101 .

[0087] In some embodiments, the compressor 600 is located below the heat exchange fan 400 so that the heat exchange fan 400 can be disposed close to the air outlet 101 of the casing.

[0088] like Figure 5 As shown, the top cover 110 is connected to an air guide ring 111, which is arranged at the air outlet 101 of the casing; the interior of the air guide ring 111 defines a through cavity extending along the height direction of the casing 100, and at least part of the heat exchange fan 400 is located in the through cavity. The air guide ring 111 is used to guide the air flow in the accommodating cavity so that the heat exchange fan 400 can better play the role of inducing wind.

[0089] like Figure 1 and Figure 2 As shown, the top-outlet air-conditioning outdoor unit includes a fan cover 200, which is disposed at the air outlet 101 of the housing and mounted on the top cover 110. The fan cover 200 is used to provide protection for the heat exchange fan 400 and the blades 420 to prevent damage to the heat exchange fan 400 or accidental injury caused by inhalation of indoor debris. The fan cover 200 can also concentrate and evenly guide the wind flow, making the air flow blown out by the fan more concentrated and even.

[0090] like Figure 3As shown, the top-outlet air-conditioning outdoor unit includes a driving motor 500, which is used to drive the heat exchange fan 400 to rotate; the driving motor 500 is installed on the fan cover 200, and the driving motor 500 is located below the fan cover 200; the rotating shaft of the driving motor 500 is set downward.

[0091] like Figure 6 and Figure 7 As shown, the heat exchange fan 400 includes blades 420, and the blades 420 are used to promote air flow. The blades 420 are usually arranged in a plurality, and the plurality of blades 420 are distributed in a circumference.

[0092] like Figure 6 and Figure 7 As shown, the heat exchange fan 400 includes a hub, which is used to mount blades 420. A plurality of blades 420 are distributed along the circumference of the hub. The hub is connected to the rotating shaft of the driving motor 500 so that the driving motor 500 drives the blades 420 to rotate through the hub.

[0093] It should be noted that one end of the blade 420 is connected to the hub, and the other end of the blade 420 extends in a direction away from the hub.

[0094] In order to facilitate the installation of the blade 420 on the wheel hub, in this embodiment, the wheel hub is designed as a split structure to avoid the blade 420 being unable to be installed on the wheel hub due to deformation of the wheel hub.

[0095] Specifically, Figure 6 and Fig. 9 As shown, the wheel hub includes a base 430 , a middle portion of the base 430 is provided with an insertion portion 439 , and a rotating shaft of the driving motor 500 is inserted into the insertion portion 439 , so that the driving motor 500 and the base 430 are connected to each other.

[0096] In some embodiments, the bottom of the base 430 is recessed toward the top of the base 430 to form a cavity, which can reduce the material used for the base 430 and reduce the production cost of the base 430 on the one hand; on the other hand, it can reduce the weight of the base 430, thereby reducing the force on the rotating shaft of the drive motor 500 and increasing the service life of the drive motor 500.

[0097] In other embodiments, a reinforcing rib 432 is disposed in the cavity, and the reinforcing rib 432 is connected to the base 430 to increase the strength of the base 430 and prevent the strength of the base 430 from being reduced due to the provision of the cavity.

[0098] like Fig.11 As shown, the hub includes a mounting portion 434, which is disposed at the outer edge of the base 430 and is used to mount the blade 420. One end of the blade 420 connected to the hub is disposed in the mounting portion 434.

[0099] When there are multiple blades 420 , the mounting portions 434 are also correspondingly arranged in multiples, and the blades 420 and the mounting portions 434 are arranged in one-to-one correspondence. Therefore, when there are multiple mounting portions 434 , the multiple mounting portions 434 are distributed along the circumference of the base 430 .

[0100] In some embodiments, the mounting portion 434 is a cavity disposed in the base 430 .

[0101] The mounting portion 434 includes a first opening, and the first opening is opened at the top of the base 430 .

[0102] The mounting portion 434 includes a second opening, which is disposed on the outer periphery of the base 430 ; one end of the blade 420 away from the base 430 passes through the second opening and extends in a direction away from the base 430 .

[0103] The second opening is communicated with the first opening, one end of the blade 420 is disposed in the mounting portion 434 through the first opening, a portion of the blade 420 is disposed at the second opening, and the other end of the blade 420 is disposed outside the mounting portion 434 .

[0104] It should be noted that the first opening and the second opening are collectively referred to as a mounting portion opening, and it can be considered that the mounting portion opening is provided at the top of the base 430 and extends to the periphery of the base 430 .

[0105] like Fig.12 and Fig.13 As shown, the hub includes a pressing block 440, which is used to firmly set the blade 420 in the mounting portion 434. The pressing block 440 is set in the mounting portion 434 through the first opening, and the pressing block 440 and the bottom surface of the mounting portion 434 jointly constrain the blade 420 to fix the blade 420 to the base 430.

[0106] When the blade 420 is disposed in the mounting portion 434 , the pressing block 440 provides a restraining force to the blade 420 along the height direction of the housing 100 to prevent the blade 420 from being separated from the mounting portion 434 along the height direction of the housing 100 , thereby increasing the firmness of the connection between the blade 420 and the base 430 .

[0107] It should be noted that the pressing block 440 and the blade 420 are arranged along the height direction of the housing 100 , wherein the pressing block 440 is arranged above the blade 420 .

[0108] like Fig.11 As shown, a first blocking portion 435 is provided in the mounting portion 434. The first blocking portion 435 is protruding from the bottom surface of the mounting portion 434 and is correspondingly provided at the second opening. There is a distance between the first blocking portion 435 and the side wall of the mounting portion 434 facing the second opening to jointly form a first accommodating portion 436.

[0109] like Fig.15As shown, the blade 420 is provided with an extension portion 421, and the extension portion 421 is located at one end of the blade 420 provided on the mounting portion 434. The extension portion 421 is provided corresponding to the first receiving portion 436, and when the blade 420 is installed on the base 430, the extension portion 421 is provided in the first receiving portion 436.

[0110] When the extension portion 421 is disposed in the first accommodating portion 436, the first blocking portion 435 has a blocking effect on the extension portion 421. The first blocking portion 435 prevents the blade 420 from detaching from the mounting portion 434 by preventing the extension portion 421 from leaving the first accommodating portion 436, thereby preventing the blade 420 from detaching from the base 430 during the operation of the heat exchange fan 400 and causing serious consequences.

[0111] It should be noted that, when installing the blade 420 , arranging the extension portion 421 in the first accommodation portion 436 can also position the installation position of the blade 420 in the installation portion 434 .

[0112] like Fig.16 As shown, the lower end of the pressing block 440 contacts the first blocking portion 435 so that there is a distance between the pressing block 440 and the bottom surface of the mounting portion 434, so that the pressing block 440, the first blocking portion 435 and the bottom surface of the mounting portion 434 together define a through portion 444, and at least a portion of the blade 420 is arranged through the through portion 444 so that one end of the blade 420 is connected to the base 430, and the other end of the blade 420 extends in a direction away from the base 430.

[0113] It should be noted that the size of the portion of the blade 420 passing through the through portion 444 is usually smaller than the size of the blade 420 at one end of the mounting portion 434 , in order to prevent the extension portion 421 from passing through the through portion 444 and escaping from the first accommodation portion 436 .

[0114] It should also be noted that the contact between the pressing block 440 and the first blocking portion 435 can reduce the pressing of the pressing block 440 on the blade 420 and prevent the pressing block 440 from damaging the blade 420 .

[0115] In practical applications, the surface of the blade 420 is usually a curved surface, and the surface of the end of the pressing block 440 extending into the mounting portion 434 is matched with the surface of the blade 420 .

[0116] By arranging the extension portion 421 in the first accommodating portion 436 and blocking the extension portion 421 with the first blocking portion 435, the blade 420 can be prevented from detaching from the mounting portion 434 in the horizontal direction; by making the pressing block 440, the first blocking portion 435 and the bottom of the mounting portion 434 jointly define a through portion 444, at least a portion of the blade 420 is arranged through the through portion 444, so that one end of the blade 420 is connected to the base 430 and the other end is arranged away from the base 430.

[0117] like Figure 6 and Figure 7 As shown, the wheel hub includes a cover plate 410, which is used to constrain the pressure block 440 to the mounting portion 434; the cover plate 410 is arranged on the top of the base 430, and the cover plate 410 is connected to the base 430 and the pressure block 440 to impose constraints on the pressure block 440, thereby increasing the firmness of the pressure block 440 in the mounting portion 434.

[0118] The cover plate 410 is provided with an escape portion 413, which is arranged corresponding to the insertion portion 439 so that the rotating shaft of the driving motor 500 can pass through the escape portion 413 and be inserted into the insertion portion 439. This avoids interference between the driving motor 500 and the base 430 due to the cover plate 410 being arranged above the base 430.

[0119] like Fig.12 As shown, a reinforcing portion 443 is disposed at the upper end of the pressing block 440 , and the reinforcing portion 443 and a side of the cover plate 410 facing the pressing block 440 are in contact with and connected to each other to increase the contact area between the pressing block 440 and the cover plate 410 .

[0120] The base 430 is provided with a sinking portion, which is recessed at one side of the base 430 facing the cover plate 410 ; the reinforcing portion 443 is provided in the sinking portion to locate the connection position between the pressing block 440 and the base 430 .

[0121] like Figure 8 As shown, the cover plate 410 is provided with a first connection portion 411 , and the first connection portion 411 is arranged to penetrate the cover plate 410 along the height direction of the housing 100 .

[0122] In some embodiments, the first connection portion 411 is a first connection hole.

[0123] The pressing block 440 is provided with a second connecting portion 441 . The second connecting portion 441 is provided on the reinforcing portion 443 . The second connecting portion 441 is provided through the reinforcing portion 443 along the height direction of the housing 100 .

[0124] In some embodiments, the second connection portion 441 is a second connection hole.

[0125] The base 430 is provided with a third connection portion 431 , and the third connection portion 431 extends along a height direction of the housing 100 .

[0126] In some embodiments, the third connection portion 431 is a third connection hole.

[0127] like Figure 8As shown, the third connection part 431, the second connection part 441 and the first connection part 411 are correspondingly arranged along the height direction of the housing 100, and the same fastener is sequentially connected to the first connection part 411, the second connection part 441 and the third connection part 431, so that the cover plate 410, the pressing block 440 and the base 430 are connected to each other. It should be noted that the fastener is a bolt or a screw.

[0128] Connecting the cover plate 410, the pressing block 440 and the base 430 to each other through the same fastener can not only reduce the number of fasteners required for hub assembly and reduce production costs, but also improve assembly efficiency.

[0129] The cover plate 410 is provided with a fourth connection portion 412 , and the fourth connection portion 412 is arranged to penetrate the cover plate 410 along the height direction of the housing 100 .

[0130] In some embodiments, the fourth connection portion 412 is a fourth connection hole.

[0131] The base 430 is provided with a fifth connection portion 433 , and the fifth connection portion 433 extends along a height direction of the housing 100 .

[0132] In some embodiments, the fifth connection portion 433 is a fifth connection hole.

[0133] The fifth connection portion 433 is disposed corresponding to the fourth connection portion 412 , and the same fastener is sequentially disposed on the fourth connection portion 412 and the fifth connection portion 433 , so that the cover plate 410 and the base 430 are connected to each other.

[0134] like Fig.10 As shown, the cover plate 410 is provided with a first positioning portion 414 , and the first positioning portion 414 is provided on a side of the cover plate 410 facing the base 430 .

[0135] In some embodiments, the first positioning portion 414 is disposed at an outer edge of the avoiding portion 413 .

[0136] In another embodiment, the first positioning portion 414 is disposed protruding from a side of the cover plate 410 facing the base 430 .

[0137] like Fig.11 As shown, the base 430 is provided with a second positioning portion 4310 , and the second positioning portion 4310 is provided on a side of the base 430 facing the cover plate 410 .

[0138] In some embodiments, the second positioning portion 4310 is disposed at the outer edge of the extending portion 439 .

[0139] In some other embodiments, the second positioning portion 4310 is recessed in the top surface of the base 430 .

[0140] The second positioning portion 4310 cooperates with the first positioning portion 414 to locate the connection position between the cover plate 410 and the base 430 .

[0141] In some embodiments, when the second positioning portion 4310 is a groove recessed in the top of the base 430 and the first positioning portion 414 protrudes and the cover plate 410 is arranged toward one side of the base 430, the first positioning portion 414 is arranged in the second positioning portion 4310 to position the connection position between the cover plate 410 and the base 430.

[0142] like Fig.11 As shown, the base 430 is provided with a second receiving portion 438 , and the second receiving portion 438 is located at the top of the base 430 .

[0143] In some embodiments, the second receiving portion 438 is disposed in the sinking portion.

[0144] In other embodiments, the second receiving portion 438 is disposed at an outer edge of the first opening.

[0145] A protrusion 442 is provided on one side of the reinforcing portion 443 away from the cover plate 410 . The protrusion 442 is provided corresponding to the second receiving portion 438 . The protrusion 442 is provided in the second receiving portion 438 to locate the connection position between the pressing block 440 and the base 430 .

[0146] In some embodiments, the second connection portion 441 is disposed on the protrusion 442 , and the second connection portion 441 is disposed through the protrusion 442 along the height direction of the housing 100 to increase the contact area between the fastener and the pressing block 440 , thereby increasing the connection effect of the fastener on the pressing block 440 .

[0147] The base 430 is provided with a second blocking portion 437, and the second blocking portion 437 is arranged in the sinking portion. There is a distance between the second blocking portion 437 and the side wall of the sinking portion and the second blocking portion 437 is arranged opposite to each other, so that the second blocking portion 437 and the side wall of the sinking portion jointly define a second accommodating portion 438.

[0148] When the protrusion 442 is arranged in the second accommodating portion 438, the second blocking portion 437 blocks the protrusion 442 to prevent the protrusion 442 from leaving the second accommodating portion 438, thereby limiting the horizontal direction of the pressing block 440 and preventing the pressing block 440 from detaching from the mounting portion 434 through the second opening, thereby increasing the reliability of the connection between the pressing block 440 and the base 430.

[0149] In some embodiments, when the reinforcing portion 443 is disposed in the sinking portion, the upper surface of the reinforcing portion 443 is flush with the upper surface of the base 430 to facilitate the connection between the cover plate 410 and the base 430 and the pressing block 440 .

[0150] In some embodiments, when the extension portion 421 is disposed in the first accommodating portion 436, the side of the extension portion 421 facing the cover plate 410 is flush with the side of the first blocking portion 435 facing the cover plate 410, so that when the pressing block 440 is disposed in the mounting portion 434, it contacts the extension portion 421 and the first blocking portion 435 respectively, thereby increasing the stability of the pressing block 440 when it is disposed in the mounting portion 434.

[0151] In some embodiments, the base 430 is an injection molded part to reduce deformation during the production process of the base 430 .

[0152] In some embodiments, the cover plate 410 is an injection-molded part to reduce deformation during the production process of the cover plate 410 .

[0153] In some embodiments, the pressing block 440 is an injection molded part to reduce deformation during the production process of the pressing block 440 .

[0154] In other embodiments, the injection molded parts are produced by 3D printing.

[0155] The steps of installing the heat exchange fan 400 in the top-outlet air-conditioning outdoor unit are as follows: one end of the blade 420 is arranged in the mounting portion 434 through the first opening, part of the blade 420 is arranged at the second opening, and the other end of the blade 420 is outside the mounting portion 434 and extends in a direction away from the base 430; the extension portion 421 is arranged in the first accommodating portion 436, and the first blocking portion 435 constrains the extension portion 421; the pressing block 440 is extended into the mounting portion 434 through the second opening, so that the bottom of the pressing block 440 and the top of the first blocking portion 435 are in contact with each other. The raised portion 442 is disposed in the second accommodating portion 438, and then the reinforcing portion 443 is disposed in the sinking portion; then the first positioning portion 414 is disposed in the second positioning portion 4310, so that the cover plate 410 and the base 430 are assembled with each other; finally, the same fastener is disposed in the first connecting portion 411, the second connecting portion 441 and the third connecting portion 431 in sequence, so that the cover plate 410, the pressing block 440 and the base 430 are connected to each other; another fastener is disposed in the fourth connecting portion 412 and the fifth connecting portion 433 in sequence, so that the cover plate 410 and the base 430 are connected to each other.

[0156] The above top-outlet air-conditioning outdoor unit is designed to be a split structure, which not only facilitates the manufacture of the hub, but also prevents the hub from being deformed; by providing a mounting portion 434 on the base 430, the blade 420 is provided in the mounting portion 434, and the pressing block 440 is used to constrain the blade 420 along the height direction of the housing 100 to prevent the blade 420 from being separated from the mounting portion 434 through the first opening; the first blocking portion 435 constrains the extension portion 421 along the horizontal direction to prevent the blade 420 from being separated from the mounting portion 434 through the second opening, thereby increasing the firmness of the connection between the blade 420 and the base 430. By providing a cover plate 410 connected to the base 430 and the pressing block 440, the cover plate 410 is used to apply pressure to the pressing block 440 to increase the pressure of the pressing block 440 on the blade 420, thereby further increasing the firmness of the connection between the blade 420 and the base 430.

[0157] During the assembly process of the heat exchange fan 400 in the top-outlet air-conditioning outdoor unit, the base 430, blades 420, pressing block 440 and cover plate 410 are evenly stressed, with small deformation, high assembly precision and good assembly effect of the heat exchange fan 400; and the base 430, pressing block 440 and cover plate 410 do not need to be manufactured using molds, thus saving production costs.

[0158] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0159] For ease of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are intended to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A top-outlet air-conditioning outdoor unit, comprising: A casing, comprising a casing air outlet and a casing air inlet, wherein the casing air outlet is arranged at the top of the casing, and the casing air inlet is arranged at the outer periphery of the casing; An outdoor heat exchanger is disposed inside the casing, and the outdoor heat exchanger is disposed close to an air inlet of the casing; A compressor, which is arranged inside the casing; A driving motor is disposed inside the housing and mounted on the housing; the rotating shaft of the driving motor is arranged downward; A heat exchange fan is arranged inside the casing and close to the air outlet of the casing; at least part of the heat exchange fan is located above the compressor, and at least part of the heat exchange fan is located below the drive motor; The heat exchange fan comprises a hub and a plurality of blades, at least some of the blades are distributed along the circumference of the hub and connected to the hub; one end of the blade is connected to the hub, and the other end of the blade extends in a direction away from the hub; Characterized in that the wheel hub further comprises: A base connected to the rotating shaft of the driving motor; A mounting portion, which is arranged at the outer edge of the base; the mounting portion includes a mounting portion opening, the mounting portion opening is arranged at the top of the base and extends to the outer periphery of the base; one end of the blade connected to the hub is arranged in the mounting portion; A pressing block is detachably arranged in the mounting portion and is used to constrain the blade to the mounting portion.

2. The top-outlet air conditioner outdoor unit according to claim 1, characterized in that: The base is provided with a first blocking portion, which is protruding from the bottom surface of the mounting portion; a gap is provided between the first blocking portion and a side wall of the mounting portion that is open toward the mounting portion, so as to define and form a first accommodating portion; An extension portion is provided at one end of the blade disposed in the mounting portion. The extension portion is disposed corresponding to the first accommodating portion. The first blocking portion is used to constrain the extension portion in the first accommodating portion.

3. The top-outlet air-conditioning outdoor unit according to claim 2, characterized in that: One end of the pressing block facing the blade contacts the first blocking portion, so that a distance exists between the pressing block and the bottom surface of the mounting portion and they define a passing portion together, and at least part of the blade passes through the passing portion.

4. The top-outlet air-conditioning outdoor unit according to claim 1, characterized in that: The base is connected with a cover plate, and the cover plate is arranged on the top of the base and the top of the pressing block, and is used to constrain the pressing block in the installation part.

5. The top-outlet air-conditioning outdoor unit according to claim 4, characterized in that: A reinforcing portion is provided at one end of the pressing block connected to the cover plate, and the reinforcing portion and a side of the cover plate facing the pressing block are in contact with and connected to each other.

6. The top-outlet air-conditioning outdoor unit according to claim 5, characterized in that: The base is provided with a sinking portion, and the mounting portion is arranged to penetrate the sinking portion along the height direction of the housing; the reinforcing portion is arranged in the sinking portion to locate the connection position of the pressing block and the base.

7. The top-outlet air-conditioning outdoor unit according to claim 6, characterized in that: A second accommodating portion is provided on the top of the base, and a protruding portion is provided on the reinforcing portion. The protruding portion is arranged in the second accommodating portion to locate the connection position between the pressing block and the base.

8. The top-outlet air-conditioning outdoor unit according to claim 7, characterized in that: The second accommodating portion is located in the sinking portion; the base is provided with a second blocking portion, the second blocking portion protrudes from the bottom surface of the sinking portion and is arranged corresponding to the second accommodating portion, and the second blocking portion is used to constrain the protruding portion in the second accommodating portion.

9. The top-outlet air-conditioning outdoor unit according to claim 4, characterized in that: The cover plate is provided with a first connection part, the pressure block is provided with a second connection part, and the base is provided with a third connection part. The first connection part, the second connection part and the third connection part are correspondingly arranged along the height direction of the casing. The first connection part, the second connection part and the third connection part are connected with the same fastener to connect the cover plate, the pressure block and the base to each other.

10. A top-outlet air conditioner outdoor unit, characterized in that: include: A casing, comprising a casing air outlet and a casing air inlet, wherein the casing air outlet is arranged at the top of the casing, and the casing air inlet is arranged at the outer periphery of the casing; An outdoor heat exchanger is disposed inside the casing, and the outdoor heat exchanger is disposed close to an air inlet of the casing; A compressor, which is arranged inside the casing; A driving motor is arranged inside the casing and mounted on a casing wall of the casing where the casing air outlet is opened; the rotating shaft of the driving motor is arranged downward; A heat exchange fan is arranged inside the casing and connected to the rotating shaft of the driving motor, and the heat exchange fan is arranged near the air outlet of the casing; the heat exchange fan comprises: blade; a wheel hub connected to the rotating shaft of the motor; A mounting portion, which is provided on the hub and is used to mount the blade; A pressure block, which is arranged in the mounting portion and is used to impose constraints on the blade; One end of the blade is arranged in the mounting portion and is constrained by the pressing block, and the other end of the blade extends in a direction away from the hub.

Images