Wall mounted units and air conditioners

Abstract

The present application relates to the technical field of air conditioning devices, and more specifically, to a wall-mounted unit, and also to an air conditioner including the wall-mounted unit. The wall-mounted unit includes a shell and an air duct formed in the shell, a heat exchanger and a centrifugal fan are arranged in the air duct, a first air inlet and a second air inlet are respectively opened at both ends of the first direction of the shell, and a first air outlet and a second air outlet are respectively opened at both ends of the second direction of the shell, and the centrifugal fan is used to drive the airflow from the first air inlet and / or the second air inlet into the air duct, and pass through the heat exchanger and then be discharged from the first air outlet and / or the second air outlet. The above technical solution provides a feasible solution for a wall-mounted upper and lower air outlet air conditioner and a new type of wall-mounted unit; through the siphon effect of the centrifugal fan, in combination with the air inlet opened in the first direction and the air outlet opened in the second direction, different air outlet forms can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning devices, and in particular to a wall-mounted unit, and also to an air conditioner including the wall-mounted unit. Background Art

[0002] At present, most of the indoor wall-mounted air conditioners on the market use cross-flow fans. Since most of the domestic wall-mounted air conditioners are used in small bedrooms, the high pressure of the airflow generated by the cross-flow fan blades can easily lead to a hard wind feeling and a strong sense of wind blowing on the human body. At the same time, the small flow rate of the cross-flow fan blades will lead to low heat exchange efficiency.

[0003] Some wall-mounted units in the prior art also use axial flow fans, but the existing wall-mounted air conditioner indoor units often have only one air outlet, and their air supply range and performance are limited, which cannot meet the diverse life needs of users; for example, when cooling, they cannot blow out from the upper end, resulting in poor indoor cooling effect; when heating, they cannot blow out from the lower end well, resulting in poor indoor heating effect. Even if the wall-mounted unit uses axial flow fan blades, its thickness is extremely large and is not popular in the market; the traditional wall-mounted air conditioner has only one air inlet, outlet, and fan, and no matter whether it is heating or cooling, the air comes out from one air outlet, and the comfort cannot be optimized. In addition, there is only one air inlet, and the air inlet area is limited, which cannot further increase the air intake volume, improve the heat exchange efficiency, and achieve the comfortable effect of "up and down air outlet". Summary of the invention

[0004] The technical problem to be solved by the embodiment of the present invention is: since the air outlet of the wall-mounted air conditioner in the prior art is fixed, it is impossible to choose to discharge air at different positions according to the needs of the human body, resulting in poor indoor cooling and heating effects, affecting the comfort of the user; and the cross-flow fan blades have a strong blowing feeling and a small flow rate, which leads to low comfort and heat exchange efficiency, and the large air intake volume cannot further improve the heat exchange efficiency, so the comfort of the air conditioner is relatively low. In order to solve the above technical problems, the present application provides a wall-mounted unit and an air conditioner including the wall-mounted unit.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present technical solution, an embodiment of the present invention provides a wall-mounted machine.

[0006] According to the first aspect of the embodiment of the present invention, the wall-mounted machine includes a shell and an air duct formed in the shell, a heat exchanger and a centrifugal fan are arranged in the air duct, a first air inlet and a second air inlet are respectively opened at both ends of the first direction of the shell, and a first air outlet and a second air outlet are respectively opened at both ends of the second direction of the shell, the centrifugal fan is used to drive the airflow into the air duct from the first air inlet and / or the second air inlet, and be discharged from the first air outlet and / or the second air outlet after passing through the heat exchanger.

[0007] Furthermore, in a wall-mounted machine, the first direction is perpendicular to the second direction.

[0008] Furthermore, in the wall-mounted machine, a volute is provided around the fan blades of the centrifugal fan, and the volute has a first outlet facing the first air outlet and a second outlet facing the second air outlet.

[0009] Furthermore, in the wall-mounted machine, the inner contour of the volute is a centrosymmetrical structure, and the first outlet and the second outlet are arranged in a centrosymmetrical manner.

[0010] Furthermore, in the wall-mounted machine, a support frame is arranged in the shell, and the support frame includes a frame, a water receiving tray and the heat exchanger. The shell and the water receiving tray are fixed on the frame, and the heat exchanger is connected to the frame and the water receiving tray at the same time.

[0011] Furthermore, in the wall-mounted machine, the centrifugal fan is fixed to the support frame via a guide ring, and when a volute is sleeved around the fan blades of the centrifugal fan, the volute is fixed to the guide ring.

[0012] Furthermore, in the wall-mounted machine, a plurality of positioning holes and a plurality of fixing holes are provided on the volute, a plurality of positioning columns cooperating with the positioning holes are provided on the guide ring, and the fixing holes are used to cooperate with screws to fix the volute on the guide ring.

[0013] Furthermore, in the wall-mounted machine, the shell includes a front panel and a rear cover, and the front panel and the rear cover are both detachably connected to the support frame.

[0014] Furthermore, in the wall-mounted machine, a first air guide plate is provided at the first air outlet, and a second air guide plate is provided at the second air outlet.

[0015] Furthermore, in the wall-mounted machine, the overall structure of the wall-mounted machine is square or cylindrical.

[0016] In order to achieve the above-mentioned purpose, according to the second aspect of the present technical solution, the present technical solution also provides an air conditioner.

[0017] The air conditioner according to the second aspect of the embodiment of the present invention includes the wall-mounted unit provided by the first aspect of the embodiment of the present invention.

[0018] The above technical solution provides a feasible solution for a wall-mounted air conditioner with up and down air outlets and a new type of wall-mounted machine; through the siphon effect of the centrifugal fan, in combination with the air inlet in the first direction and the air outlet in the second direction, different air outlet forms can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0020] Figure 1 A schematic diagram of the overall appearance structure of a wall-mounted machine provided in an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the working state of the wall-mounted machine provided by an embodiment of the present invention;

[0022] Figure 3 Explosion structure of the wall-mounted machine provided by the embodiment of the present invention Figure 1 ;

[0023] Figure 4 Explosion structure of the wall-mounted machine provided by the embodiment of the present invention Figure 2 ;

[0024] Figure 5 The external structure diagram of the volute in the wall-mounted machine provided by the embodiment of the present invention;

[0025] Figure 6 A diagram showing the internal structure of a volute in a wall-mounted machine provided by an embodiment of the present invention;

[0026] Figure 7 Explosion structure of the wall-mounted machine provided by the embodiment of the present invention Figure 3 ;

[0027] Figure 8 An assembly structure diagram of a support frame in a wall-mounted machine provided by an embodiment of the present invention;

[0028] Fig. 9 for Figure 8 Left view of

[0029] Fig.10 An assembly structure diagram of a support frame and a fan in a wall-mounted machine provided by an embodiment of the present invention;

[0030] Fig.11 for Fig.10 Left view of

[0031] Fig.12 An assembly structure diagram of a support frame, a fan and a volute in a wall-mounted machine provided in an embodiment of the present invention; and

[0032] Fig.13 for Fig.12 Left view of .

[0033] In the figure:

[0034] 1. Heat exchanger; 2. Centrifugal fan; 3. First air inlet; 4. Second air inlet; 5. First air outlet; 6. Second air outlet; 7. Volute; 8. First outlet; 9. Second outlet; 10. Frame; 11. Drain tray; 12. Guide ring; 13. Positioning hole; 14. Fixing hole; 15. Positioning column; 16. Front panel; 17. Back cover; 18. Top cover; 19. Bottom cover; 20. First grille; 21. First air guide plate; 22. Second grille; 23. Second air guide plate; 24. Drain outlet. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0036] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a system, product or device comprising a series of units is not necessarily limited to those units explicitly listed, but may include units that are not explicitly listed or inherent to these products or devices.

[0037] In this application, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0038] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0039] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0041] like Figure 1-4 As shown, the wall-mounted machine provided in the embodiment of the present invention includes a shell and an air duct, wherein the air duct is formed inside the shell, and a heat exchanger 1 and a centrifugal fan 2 are arranged in the air duct, and a first air inlet 3 and a second air inlet 4 are respectively opened at both ends of the first direction of the shell, and a first air outlet 5 and a second air outlet 6 are respectively opened at both ends of the second direction of the shell, and the centrifugal fan 2 is used to drive the airflow to enter the air duct through the first air inlet 3 and / or the second air inlet 4, and to be discharged from the first air outlet 5 and / or the second air outlet 6 after passing through the heat exchanger 1. In this embodiment, as Figure 2 As shown, the centrifugal fan 2 absorbs the wind flow from the air inlet in the first direction of the wall-mounted machine into the air duct inside the whole machine system through the suction force. After the wind flow passes through the heat exchanger 1 component for heating or cooling, it is guided to the air outlet in the second direction through the centrifugal action of the centrifugal fan 2 to achieve air discharge in the second direction. When the second direction is a vertical direction, air can be discharged from the upper and lower ends of the wall-mounted machine. When the second direction is a horizontal direction, air can be discharged from the left and right ends of the wall-mounted machine. Using a centrifugal fan 2 on a wall-mounted machine can make the overall appearance similar to a square, with a compact structure, more air volume, and a lower space occupancy rate.

[0042] In some embodiments, Figure 1 and 2 As shown, the first direction is perpendicular to the second direction, so that the mutual interference between the air inlet and the air outlet can be reduced. The first direction is preferably a horizontal direction, and the second direction is preferably a vertical direction, so that the air can be inlet from the left and right sides of the wall-mounted machine and the air can be out from the upper and lower sides of the wall-mounted machine. Of course, the first direction can also be set to a horizontal direction, and the second direction can be set to a vertical direction, so that the air can be inlet from the upper and lower sides of the wall-mounted machine and the air can be out from the left and right sides of the wall-mounted machine.

[0043] In some embodiments, in order to achieve the airflow guidance effect, such as Figure 3-6 As shown, a volute 7 is sleeved around the blades of the centrifugal fan 2, and the volute 7 has a first outlet 8 facing the first air outlet 5 and a second outlet 9 facing the second air outlet 6. The airflow in the air duct is guided to the inner wall of the volute 7 by the centrifugal action of the centrifugal fan 2, and the air is discharged from the first outlet 8 and the second outlet 9 by the guiding action of the inner wall of the volute 7, and then discharged from the wall-mounted machine through the first air outlet 5 and the second air outlet 6.

[0044] In some embodiments, Figure 5 and 6As shown, the internal contour of the volute 7 is a centrally symmetrical structure, and the first outlet 8 and the second outlet 9 are centrally symmetrically arranged, that is, in the figure, after the structure is rotated 180° around the center point of symmetry, it will coincide with the structure itself. This structural design can form a guide volute 7 profile inside the volute 7, which can effectively ensure uniform air outlet from the first outlet 8 and the second outlet 9, effectively improve sound quality, and reduce noise.

[0045] Based on the above embodiment, a support frame is provided in the housing to form a main support structure of the wall-mounted machine, such as Figure 8 and 9 As shown, the support frame includes a frame 10, a water receiving pan 11 and the heat exchanger 1. The shell and the water receiving pan 11 are fixed on the frame 10, and the heat exchanger 1 is connected to the frame 10 and the water receiving pan 11 at the same time. The frame 10 is assembled and fixed to the left and right sides of the heat exchanger 1 by screws. The frame 10 and the water receiving pan 11 are directly matched, so that the water receiving pan 11 also plays a supporting role. A drain port 24 connected to the water receiving pan 11 is opened on the shell to discharge the condensed water in the water receiving pan 11.

[0046] Based on the above embodiments, Fig.10 and 11 As shown, the centrifugal fan 2 is fixed to the support frame by a guide ring 12, and a volute 7 is sleeved around the fan blades of the centrifugal fan 2, and the volute 7 is fixed to the guide ring 12. The position where the guide ring 12 and the heat exchanger 1 interfere with each other during the assembly process can be avoided by a serrated structure to prevent the pipeline of the heat exchanger 1. Specifically, a plurality of positioning holes 13 and a plurality of fixing holes 14 are provided on the volute 7, and a plurality of positioning columns 15 cooperating with the positioning holes 13 are provided on the guide ring 12. The fixing holes 14 are used to cooperate with screws to fix the volute 7 to the guide ring 12. The positioning columns 15 and the positioning holes 13 cooperate to play a role of positioning and supporting, and positioning installation can be achieved relatively easily during assembly. Optionally, as Fig.12 and 13 As shown, the guide ring 12 and the volute 7 are positioned at the upper left, upper right, lower left and lower right positions by positioning columns 15 and fixed by screws.

[0047] Based on the above embodiment, Figure 1-4As shown, the housing of the wall-mounted machine includes a front panel 16 and a rear cover 17, and both the front panel 16 and the rear cover 17 are detachably connected to the support frame. Preferably, the front panel 16 is fixedly connected to the support member by screws, and the rear cover 17 is assembled with the support frame by a snap-fit ​​structure. The front panel 16 can be removed by removing the screws fixing the front panel 16 and the support frame, and the rear cover 17 can be conveniently removed from the support frame by disassembling the snap-fit ​​structure. In addition, the volute 7 can be directly removed by removing the screws connected to the guide ring 12. Through the above steps, users and maintenance personnel can easily clean structures such as the heat exchanger 1 and the centrifugal fan 2.

[0048] In the above embodiment, Figure 7 As shown, the first air outlet 5 is provided with a first grille 20 and a first air guide plate 21, and the second air outlet 6 is provided with a second grille 22 and a second air guide plate 23. The grille and the air guide plate constitute a wind sweeping component. The first air outlet 5 can be closed or opened and the air outlet direction of the first air outlet 5 can be adjusted by the first air guide plate 21, and the second air outlet 6 can be closed or opened and the air outlet direction of the second air outlet 6 can be adjusted by the second air guide plate 23. For example, when the first air outlet 5 is located at the top and the second air outlet 6 is located at the bottom, in the heating mode, the first air outlet 5 can be closed and the hot air can be blown downward through the second air outlet 6. In the cooling mode, the second air outlet 6 can be closed and the cold air can be blown upward through the first air outlet 5. Of course, in both working modes, the first air outlet 5 and the second air outlet 6 can be opened at the same time to blow air upward and downward at the same time. Optionally, the first air guide plate 21 is directly assembled at the first outlet 8 of the volute 7 by screws, and the second air guide plate 23 is directly assembled at the second outlet 9 of the volute 7 by screws.

[0049] In some embodiments, the appearance of the wall-mounted machine can be designed to be symmetrical along the horizontal central axis and symmetrical along the vertical central axis. For example, the overall structure of the wall-mounted machine can be square or cylindrical. And by changing the appearance of the skeleton 10 and the front panel 16 components, the upper and lower widening or the left and right widening can be achieved. For example, the skeleton 10 and the front panel 16 can be lengthened up and down to lengthen the whole machine in the upper and lower directions, or the skeleton 10 and the front panel 16 can be lengthened left and right to widen the whole machine. In addition, the symmetrical arrangement of the volute 7, the front panel 16 and the connecting structure in the wall-mounted machine can be fully utilized through structural design. By rotating the volute 7 and the front panel 16 by 90 degrees, a wall-mounted machine with left and right air intake and up and down air outlet can be switched to a wall-mounted machine with up and down air intake and left and right air outlet.

[0050] like Figure 7As shown, an exploded structural diagram of a wall-mounted machine provided by an embodiment of the present invention is given. The shell of the wall-mounted machine includes a rear cover 17, a top cover 18, a bottom cover 19 and a front panel 16. The wall-mounted machine also includes a frame 10, a heat exchanger 1, a water receiving tray 11, a guide ring 12, a centrifugal fan 2, a volute 7, a first grille, a first air guide plate 21, a second grille and a second air guide plate 23. The specific assembly scheme can be: first, build an arc-shaped or square frame 10 as the main body of the support frame; second, as shown in FIG. Figure 8 and 9 As shown, the heat exchanger 1 is assembled on the water tray 11, and the heat exchanger 1 and the water tray 11 are respectively fixed to the frame 10 by screws, and the frame 10, the heat exchanger 1, and the water tray 11 form a support frame for the overall structure of the wall-mounted machine; third, as shown Fig.10 and 11 As shown, the guide ring 12 fixed with the centrifugal fan 2 is assembled on the heat exchanger 1 and the water receiving tray 11 by means of buckles and screws; fourth, as shown Fig.12 and 13 As shown, the volute 7 is fixed on the guide ring 12 through the positioning column 15 and the screw; fifth, the top cover 18, the bottom cover 19, the rear cover 17 and the front panel 16 are assembled on the support frame. The whole assembly process is relatively quick and simple.

[0051] It should be noted that other structures and operations of the wall-mounted machine provided in the embodiment of the present invention are known to ordinary technicians in the field, and can refer to the structure of related devices in the prior art, and will not be described in detail here.

[0052] The embodiment of the present application also provides an air conditioner, which includes the wall-mounted unit provided in the above embodiment of the present application. Since the air conditioner disclosed in the embodiment of the present application includes the wall-mounted unit provided in the above embodiment, the air conditioner having the wall-mounted unit also has all the above technical effects, which will not be described one by one here. Other structures and operations of the air conditioner are known to ordinary technicians in the field and will not be described in detail here.

[0053] Some embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referenced to each other.

[0054] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A wall-mounted machine, characterized in that: The invention comprises a shell and an air duct formed in the shell, wherein a heat exchanger (1) and a centrifugal fan (2) are arranged in the air duct, a first air inlet (3) and a second air inlet (4) are respectively provided at two ends of the shell in a first direction, and a first air outlet (5) and a second air outlet (6) are respectively provided at two ends of the shell in a second direction, and the centrifugal fan (2) is used to drive an air flow to enter the air duct through the first air inlet (3) and / or the second air inlet (4), pass through the heat exchanger (1), and then be discharged through the first air outlet (5) and / or the second air outlet (6); A volute (7) is provided around the fan blades of the centrifugal fan (2), the volute (7) having a first outlet (8) facing the first air outlet (5) and a second outlet (9) facing the second air outlet (6); a support frame is provided in the shell, the support frame comprising a frame (10), a water receiving tray (11) and the heat exchanger (1); the shell and the water receiving tray (11) are both fixed on the frame (10); the heat exchanger (1) is connected to the frame (10) and the water receiving tray (11) at the same time; the centrifugal fan (2) is connected to the fan blades through a guide ring ( The volute (7) is fixed on the support frame, the volute (7) is fixed on the guide ring (12), a plurality of positioning holes (13) and a plurality of fixing holes (14) are provided on the volute (7), a plurality of positioning columns (15) matched with the positioning holes (13) are provided on the guide ring (12), and the fixing holes (14) are used to match the screws to fix the volute (7) on the guide ring (12); the shell includes a front panel (16) and a rear cover (17), and the front panel (16) and the rear cover (17) are both detachably connected to the support frame.

2. The wall-mounted machine according to claim 1, characterized in that: The first direction is perpendicular to the second direction.

3. The wall-mounted machine according to claim 1, characterized in that: The internal profile of the volute (7) is a centrosymmetrical structure, and the first outlet (8) and the second outlet (9) are arranged in a centrosymmetrical manner.

4. The wall-mounted machine according to claim 1, characterized in that: A first air guide plate (21) is provided at the first air outlet (5), and a second air guide plate (23) is provided at the second air outlet (6).

5. The wall-mounted machine according to claim 1, characterized in that: The overall structure of the wall-mounted machine is square or cylindrical.

6. An air conditioner, characterized in that: Including the wall-mounted machine described in any one of claims 1-5.

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