Auxiliary air supply device and wall-mounted air conditioner indoor unit

Abstract

The utility model belongs to the technical field of air conditioning equipment, and particularly provides an auxiliary air supply device and a wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit aims at solving the problem that the air speed of an existing wall-mounted air conditioner indoor unit is low due to the fact that the air speed is blocked by an air deflector. The auxiliary air supply device is suitable for the wall-mounted air conditioner indoor unit and comprises at least one connecting arm, a shell and a cross-flow fan. The connecting arm is used for being connected with a shell of the wall-mounted air conditioner indoor unit. The shell is connected with the connecting arm and provided with an auxiliary air inlet and an auxiliary air outlet. The cross-flow fan comprises an impeller arranged in the shell and an air supply motor driving the impeller to rotate, and is used for driving air to enter the shell from the auxiliary air inlet and be blown out of the shell from the auxiliary air outlet, so that the air speed and the air volume of the wall-mounted air conditioner indoor unit are increased. Therefore, the technical problem is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air-conditioning equipment, and specifically provides an auxiliary air supply device and a wall-mounted air-conditioning indoor unit. Background Art

[0002] An air conditioner is a device that regulates indoor temperature. It typically consists of an indoor unit and an outdoor unit. Refrigerant circulates between the two units, transferring heat from the room to the outside, lowering the indoor temperature; or transferring heat from the outside to the room, raising the indoor temperature.

[0003] The existing indoor units mainly include ceiling-mounted air conditioner indoor units, floor-standing air conditioner indoor units, wall-mounted air conditioner indoor units, etc. due to their different installation forms.

[0004] Among them, the air outlet of the wall-mounted air conditioner indoor unit is provided with an air guide plate to change the blowing direction of the wall-mounted air conditioner indoor unit. However, the air guide plate not only changes the blowing direction of the air, but also reduces the wind speed and air volume, which affects the user experience. Utility Model Content

[0005] One purpose of the utility model is to solve the problem that the wind speed of the existing wall-mounted air conditioner indoor unit is low due to being blocked by the wind guide plate.

[0006] To achieve the above-mentioned object, the present invention provides, in a first aspect, an auxiliary air supply device suitable for a wall-mounted air conditioner indoor unit, and comprising:

[0007] at least one connecting arm for connecting to a casing of the wall-mounted air conditioner indoor unit;

[0008] a housing connected to the connecting arm and provided with an auxiliary air inlet and an auxiliary air outlet;

[0009] The cross-flow fan comprises an impeller arranged in the housing and an air supply motor driving the impeller to rotate. The cross-flow fan is used to drive air into the housing from the auxiliary air inlet and blow out of the housing from the auxiliary air outlet.

[0010] Optionally, the auxiliary air supply device includes two connecting arms, which are respectively used to connect the left and right sides of the casing; and the outer shell is arranged between the two connecting arms.

[0011] Optionally, a protrusion is provided on each side of the two connecting arms that are opposite to each other, so as to connect the housing via the protrusion.

[0012] Optionally, the blower motor is mounted to the protrusion on one of the two connecting arms.

[0013] Optionally, the shell is rotatably connected to the two connecting arms respectively; and / or, the shell is configured as a cylindrical structure.

[0014] Optionally, the auxiliary air supply device further includes an auxiliary volute disposed in the outer shell, wherein the auxiliary volute is fixedly connected to the outer shell or is integrally formed therewith; and the impeller is rotationally connected to the auxiliary volute.

[0015] Optionally, the outer shell includes a first shell and a second shell, the auxiliary volute is fixedly connected to the first shell, and the first shell is clamped to the second shell.

[0016] Optionally, a stop structure is provided on the second shell, and the stop structure abuts against the auxiliary volute to prevent the auxiliary volute from rotating.

[0017] Optionally, a rotating shaft is provided at both ends of the impeller in the axial direction; two axial holes for installing the rotating shaft are provided on the auxiliary volute, and an avoidance gap is provided on the circumferential side wall of one of the two axial holes to avoid the rotating shaft of the impeller, thereby ensuring that the two rotating shafts are respectively installed in the corresponding axial holes; the auxiliary air supply device also includes a stop member fixedly connected to the auxiliary volute, and the stop member is used to block the avoidance gap to prevent the rotating shaft from escaping from the axial hole through the avoidance gap.

[0018] In a second aspect, the utility model provides a wall-mounted air-conditioning indoor unit, comprising an indoor unit body and the auxiliary air supply device described in any one of the first aspects.

[0019] Based on the foregoing description, those skilled in the art will appreciate that, in the aforementioned technical solution of the present invention, by providing an auxiliary air supply device suitable for a wall-mounted air conditioner indoor unit, the auxiliary air supply device can be used to increase the wind speed and air volume of the wall-mounted air conditioner indoor unit, thereby improving the user experience. By configuring the auxiliary air supply device with a crossflow fan, the air supply capacity of the auxiliary air supply device is ensured while avoiding excessive size of the auxiliary air supply device, and wind noise is reduced compared to other types of fans, such as axial flow fans and centrifugal fans.

[0020] Furthermore, by equipping the auxiliary air supply device with two connecting arms, one for connecting to the left and right sides of the housing, the connection strength between the auxiliary air supply device and the housing is ensured. By arranging the outer shell between the two connecting arms, the auxiliary air supply device is given an overall U-shape, which not only improves structural strength but also makes the auxiliary air supply device more aesthetically pleasing.

[0021] Furthermore, by rotating the housing and the two connecting arms, the auxiliary air supply device can change its blowing direction. By configuring the housing as a cylindrical structure, the overall appearance of the auxiliary air supply device remains substantially the same when the housing rotates.

[0022] Other beneficial effects of the present invention will be described in detail below in conjunction with the accompanying drawings so that those skilled in the art can more clearly understand the improved purposes, features and advantages of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the present invention, some embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that the same reference numerals in different drawings indicate the same or similar components or parts; the drawings of the present invention are not necessarily drawn to scale. In the drawings:

[0024] Figure 1 This is a structural exploded view of a wall-mounted air conditioner indoor unit in some embodiments of the present invention (first axonometric perspective);

[0025] Figure 2 is a structural exploded view of a wall-mounted air conditioner indoor unit in some embodiments of the present invention (second axonometric perspective);

[0026] Figure 3 is an axonometric view (first axonometric perspective) of a wall-mounted air conditioner indoor unit in some embodiments of the present invention;

[0027] Figure 4 is an axonometric view (second axonometric perspective) of a wall-mounted air conditioner indoor unit in some embodiments of the present invention;

[0028] Figure 5 yes Figures 1 to 4 Exploded view of the structure of the indoor unit (first axonometric perspective);

[0029] Figure 6 yes Figures 1 to 4 Exploded view of the structure of the indoor unit (second axonometric perspective);

[0030] Figure 7 yes Figures 1 to 4 Exploded view of the auxiliary air supply device (first axonometric perspective);

[0031] Figure 8 yes Figures 1 to 4 Exploded view of the auxiliary air supply device (second axonometric perspective);

[0032] Figure 9 yes Figures 1 to 8 Exploded view of the structure of the middle shell and its internal components (first axonometric perspective);

[0033] Figure 10 yes Figures 1 to 8 Exploded view of the middle housing and its internal components (second axonometric perspective):

[0034] Figure 11 yes Figures 1 to 8 Middle shell edge Figure 4 Cross-sectional view in the AA direction;

[0035] Figure 12 yes Figure 4 Partial cross-sectional view of the indoor unit of a mid-wall-mounted air conditioner along the AA direction.

[0036] Description of reference numerals:

[0037] 001. Wall-mounted air conditioner indoor unit;

[0038] 100, indoor unit body; 101, return air vent; 102, air outlet; 103, air supply duct; 110, housing; 111, receiving slot; 112, fixing structure; 1121, strip hole; 1122, buckle; 113, sink; 120, air guide plate; 130, air conditioner fan; 140, air conditioner volute;

[0039] 200. Auxiliary air supply device;

[0040] 210, connecting arm; 211, fixed fitting structure; 2111, hooking structure; 2112, latching protrusion; 21121, guide surface; 212, protruding portion; 2121, arc surface; 2122, connecting hole;

[0041] 220, housing; 2201, auxiliary air inlet; 2202, auxiliary air outlet; 221, first housing; 2211, snap-fit ​​structure; 2212, threaded hole column; 222, second housing; 2221, snap-fit ​​structure; 2222, stop structure;

[0042] 230, cross-flow fan; 231, impeller; 2311, rotating shaft; 232, air supply motor;

[0043] 240, wind direction motor;

[0044] 250, auxiliary volute; 251, connecting shaft; 2501, connecting shaft hole; 2502, avoidance gap; 2503, threaded hole; 2504, fixing hole; 2506, drive shaft hole;

[0045] 260. Stop member; 261. Through hole. DETAILED DESCRIPTION

[0046] Those skilled in the art should understand that the embodiments described below are only a portion of the embodiments of the present invention, rather than all of the embodiments of the present invention. These embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0047] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for the convenience of description and does not indicate or imply that the corresponding device or element must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, it should not be understood as limiting the present utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0048] Furthermore, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a communication between the two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. For example, the terms "install", "connect", "connect", and "fix", unless otherwise specified, can specifically refer to any feasible connection form such as bolt connection, screw connection, welding, plug-in connection, riveting, welding, and clamping.

[0049] In addition, it should be noted that in the description of the present invention, the terms "cold" and "heat" are two descriptions of the same physical state. That is, the higher the "cold" of a certain target object (such as an evaporator, air, condenser, etc.), the lower the "heat" it has, and the lower the "cold" it has, the higher the "heat" it has. When a certain target object absorbs "cold", it will release "heat", and when it releases "cold", it will absorb "heat". A certain target object stores "cold" or "heat" in order to maintain the current temperature of the target object. "Refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon, that is, a certain target object (such as an evaporator) will absorb heat while cooling.

[0050] like Figures 1 to 4As shown, the present invention provides an auxiliary air supply device 200 and a wall-mounted air conditioner indoor unit 001, that is, the auxiliary air supply device 200 of the present invention is applicable to the wall-mounted air conditioner indoor unit 001. Figures 1 to 12 The wall-mounted air-conditioning indoor unit 001 of the present invention and the auxiliary air supply device 200 of the present invention applicable to the wall-mounted air-conditioning indoor unit 001 are described in detail.

[0051] like Figures 1 to 4 As shown, in some embodiments of the present invention, the wall-mounted air-conditioning indoor unit 001 includes an indoor unit body 100 and an auxiliary air supply device 200, so as to increase the wind speed and air volume of the wall-mounted air-conditioning indoor unit 001 through the auxiliary air supply device 200.

[0052] like Figures 1 to 6 As shown, in some embodiments of the present invention, the indoor unit body 100 includes a return air port 101 and an air outlet 102, so that the outside air enters the indoor unit body 100 through the return air port 101, and the air in the indoor unit body 100 flows out of the indoor unit body 100 through the air outlet 102.

[0053] like Figure 5 and Figure 6 As shown, in some embodiments of the present invention, the indoor unit body 100 includes a housing 110, an air guide plate 120, an air conditioning fan 130, an air conditioning volute 140, and a heat exchanger (not shown in the figure). The air guide plate 120 is rotatably connected to the housing 110, and the air conditioning fan 130, the air conditioning volute 140, and the heat exchanger are all disposed within the housing 110.

[0054] like Figure 5 and Figure 6 As shown, in some embodiments of the present invention, the return air vent 101 is formed on the top side of the housing 110, and the air outlet 102 is formed on the front side of the bottom of the housing 110. In addition, those skilled in the art may also dispose the return air vent 101 and the air outlet 102 at any other position on the housing 110 as needed, for example, disposing the return air vent 101 at the top of the front side of the housing 110.

[0055] Continue reading Figure 5 and Figure 6 In some embodiments of the present invention, the left and right walls of the housing 110 are provided with receiving grooves 111, so that the connecting arm 210 (such as Figure 7 and Figure 8 As shown) can be embedded in the casing 110, making the wall-mounted air-conditioning indoor unit 001 more beautiful as a whole.

[0056] Continue reading Figure 5 and Figure 6In some embodiments of the present invention, the indoor unit body 100 is provided with a fixing structure 112 at the accommodating groove 111 so that the indoor unit body 100 is fixedly connected to the connecting arm 210 of the auxiliary air supply device 200 through the fixing structure 112 .

[0057] Furthermore, the fixing structure 112 includes at least one strip hole 1121 and at least one clip 1122, and the strip hole 1121 extends along the up and down directions of the indoor unit body 100, so that the auxiliary air supply device 200 can install its connecting arm 210 into the accommodating groove 111 in a bottom-up manner.

[0058] The connection relationship between the fixing structure 112 and the connecting arm 210 will be described in detail later.

[0059] Continue reading Figure 5 and Figure 6 In some embodiments of the present invention, the indoor unit body 100 is provided with a downward-opening groove 113 on the bottom side of its casing 110, so that a portion of the outer casing 220 of the auxiliary air supply device 200 is embedded in the groove 113, thereby reducing the overall height of the wall-mounted air-conditioning indoor unit 001 and making the wall-mounted air-conditioning indoor unit 001 more beautiful as a whole.

[0060] from Figure 5 and Figure 6 As can be seen in the figure, in some embodiments of the present invention, the sink 113 is located behind the air outlet 102 to prevent the auxiliary air supply device 200 from blocking the air blown out from the air outlet 102. In addition, the front of the sink 113 is set to be open so that the sink 113 can be connected to the air outlet 102 as a whole and closer to each other.

[0061] Continue reading Figure 5 and Figure 6 In some embodiments of the present invention, the air guide plate 120 is installed at the air outlet 102 and can cover part of the housing 220 of the auxiliary air supply device 200 when closed.

[0062] Continue reading Figure 5 and Figure 6 In some embodiments of the present invention, the air conditioner volute 140 is fixedly connected to the housing 110 and can be used to connect to a wall to mount the indoor unit body 100 on the wall. The air conditioner fan 130 is rotatably mounted on the air conditioner volute 140.

[0063] Although not shown in the figure, the heat exchanger is also mounted on the air conditioner volute 140. Since the heat exchanger in the wall-mounted air conditioner indoor unit 001 is well known to those skilled in the art, it will not be described in detail here.

[0064] like Figure 7 and Figure 8 As shown, in some embodiments of the present invention, the auxiliary air supply device 200 includes two connecting arms 210, a housing 220, a crossflow fan 230, and an optional wind direction motor 240. The housing 220 is disposed between the two connecting arms 210, so that the auxiliary air supply device 200 is U-shaped as a whole.

[0065] Of course, in other embodiments of the present invention, those skilled in the art may also provide one connecting arm 210 as needed, so that the auxiliary air supply device 200 is L-shaped as a whole.

[0066] Continue reading Figure 7 and Figure 8 In some embodiments of the present invention, the connecting arm 210 is used to connect the indoor unit body 100. The connecting arm 210 is provided with a fixing matching structure 211, so that the connecting arm 210 and the indoor unit body 100 are fixed together through the fixing structure 112 and the fixing matching structure 211.

[0067] Continue reading Figure 7 and Figure 8 In some embodiments of the present invention, the fixed matching structure 211 includes at least one hooking structure 2111 and at least one latching protrusion 2112 , and the hooking structure 2111 and the latching protrusion 2112 are both arranged on the side of the connecting arm 210 facing the accommodating groove 111 .

[0068] When the auxiliary air supply device 200 and the indoor unit body 100 are assembled, the hooking structure 2111 is embedded in the strip hole 1121 and hooks the upper edge of the strip hole 1121, and the protrusion 2112 is engaged with the buckle 1122 to fix the connecting arm 210 to the indoor unit body 100.

[0069] from Figure 7 and Figure 8 As can be seen in the figure, the hooking structure 2111 is a U-shaped structure provided on the connecting arm 210 to ensure that the hooking structure 2111 can hook the upper edge of the strip-shaped hole 1121. Alternatively, those skilled in the art can also replace the U-shaped structure with an L-shaped structure, a Z-shaped structure, or the like as needed.

[0070] from Figure 7 and Figure 8 It can also be seen in the figure that the top surface of the protrusion 2112 is provided with a guide surface 21121 to enable the buckle 1122 to pass over the protrusion 2112 and hook the bottom surface of the protrusion 2112.

[0071] Based on the above-described structures of the fixing structure 112 and the fixing engagement structure 211, those skilled in the art will appreciate that when installing the auxiliary air supply device 200, the auxiliary air supply device 200 can be first placed below the indoor unit body 100, with the two connecting arms 210 aligned with the two receiving slots 111 on the indoor unit body 100. The two connecting arms 210 are then inserted upward into the two receiving slots 111. During this process, when the hooking structure 2111 moves to align with the strip-shaped hole 1121, it engages with the strip-shaped hole 1121. This continues until the hooking structure 2111 reaches the upper edge of the strip-shaped hole 1121 and hooks onto it. At this point, the latching protrusion 2112 also passes over the latch 1122 and is hooked by it, completely securing the auxiliary air supply device 200 to the indoor unit body 100.

[0072] In some embodiments of the present invention, the distance between the two opposite inner side surfaces of the two connecting arms 210 is the same or approximately the same as the distance between the bottom walls of the two accommodating grooves 111 on the indoor unit body 100, and the two connecting arms 210 can produce slight deformation to ensure that the two connecting arms 210 can be inserted into the two accommodating grooves 111, and to ensure that the hook structure 2111 can automatically embed into the strip hole 1121.

[0073] Those skilled in the art will appreciate that the aforementioned engagement between the protrusion 2112 and the buckle 1122 allows the auxiliary air supply device 200 to be secured to the indoor unit body 100 in the vertical direction. The aforementioned engagement between the hook structure 2111 and the strip-shaped hole 1121 allows the auxiliary air supply device 200 to be secured to the indoor unit body 100 in the left-right and front-back directions. The aforementioned engagement between the receiving groove 111 and the connecting arm 210 allows the auxiliary air supply device 200 to be secured to the indoor unit body 100 in the left-right and front-back directions.

[0074] In addition, those skilled in the art may also set the fixing structure 112 and the fixing matching structure 211 to any other feasible structures as needed, such as the threaded hole 2503 and the through hole 261, and connect them together by bolts or screws.

[0075] Continue reading Figure 7 and Figure 8 In some embodiments of the present invention, protrusions 212 are provided on opposite sides of the two connecting arms 210 to connect to the housing 220 via the protrusions 212. The two protrusions 212 can also respectively abut against the bottom surface of the indoor unit body 100, thereby cooperating with the fixing structure 112 and the fixing matching structure 211, as well as the connecting arm 210 embedded in the receiving groove 111, thereby increasing the connection strength between the auxiliary air supply device 200 and the indoor unit body 100 and preventing the auxiliary air supply device 200 from shaking relative to the indoor unit body 100.

[0076] Alternatively, in other embodiments of the present invention, those skilled in the art may also omit the protruding portion 212 of the connecting arm 210 as needed.

[0077] Continue reading Figure 7 and Figure 8 In some embodiments of the present invention, the cross-flow fan 230 includes an impeller 231 and an air supply motor 232 that drives the impeller 231. The impeller 231 is mounted in the housing 220, the air supply motor 232 is mounted in one of the two protrusions 212, and the wind direction motor 240 is mounted in the other of the two protrusions 212 to balance the left and right weights of the auxiliary air supply device 200 and prevent the auxiliary air supply device 200 from being overweight in the left and right directions.

[0078] Furthermore, each protrusion 212 is respectively provided with a cavity (not shown in the figure) to install the air supply motor 232 and the wind direction motor 240. The cavity is also provided with a removable cover (not marked in the figure) to shield the cavity and hide the air supply motor 232 and the wind direction motor 240.

[0079] Continue reading Figure 7 and Figure 8 In some embodiments of the present invention, the impeller 231 is axially o (eg Figure 7 and Figure 8 As shown in the figure, a rotating shaft 2311 is respectively provided at both ends of the impeller 231, so that the impeller 231 is driven and connected to the air supply motor 232 through one of the two rotating shafts 2311, and the impeller 231 is rotatably connected to the housing 220 through the other of the two rotating shafts 2311.

[0080] like Figures 7 to 11 As shown, in some embodiments of the present invention, the housing 220 is provided with an auxiliary air inlet 2201 and an auxiliary air outlet 2202, so that under the action of the cross-flow fan 230, air enters the housing 220 from the auxiliary air inlet 2201 and is blown out of the housing 220 from the auxiliary air outlet 2202.

[0081] like Figure 11 and Figure 12 As shown, in some embodiments of the present invention, the auxiliary wind inlet 2201 is located on the front side of the shell 220, and the auxiliary wind outlet 2202 is located on the rear side of the shell 220, so that the wind blown out from the auxiliary wind inlet 2201 can act on the wind blown out from the air outlet 102 of the indoor unit body 100 to increase the wind speed.

[0082] like Figure 11 and Figure 12As shown, in some embodiments of the present invention, the cross-section of the housing 220 perpendicular to the left-right direction of the wall-mounted air conditioner indoor unit 001 is circular, and the cross-section of the sink 113 perpendicular to the left-right direction of the wall-mounted air conditioner indoor unit 001 is an arc, so that the housing 220 is compatible with the sink 113. In addition, the housing 220 and the sink 113 have a clearance fit to ensure that the housing 220 can rotate.

[0083] In other words, in some embodiments of the present invention, the housing 220 is configured as a cylindrical structure, so that the overall appearance of the auxiliary air supply device 200 is substantially consistent when the housing 220 rotates.

[0084] like Figure 7 and Figure 8 As shown, in some embodiments of the present invention, the bottom of the protrusion 212 is provided with an arc surface 2121 to correspond to the shell 220 with a circular cross-section, thereby making the wall-mounted air-conditioning indoor unit 001 more beautiful as a whole.

[0085] like Figure 9 and Figure 10 As shown, in some embodiments of the present invention, the auxiliary air supply device 200 further includes an auxiliary volute 250 disposed in the housing 220. The auxiliary volute 250 is axially oriented (eg, Figure 7 and Figure 8 As shown in the figure, connecting shafts 251 are respectively provided at both ends of the auxiliary volute 250, so that the auxiliary volute 250 is rotatably connected to the two connecting arms 210 through the two connecting shafts 251, thereby realizing the rotational connection between the outer shell 220 and the connecting arm 210.

[0086] Continue reading Figure 9 and Figure 10 In some embodiments of the present invention, the two connecting shafts 251 of the auxiliary volute 250 are further provided with connecting shaft holes 2501. One of the two connecting shaft holes 2501 is rotatably connected to a rotating shaft 2311 of the impeller 231; the other of the two connecting shaft holes 2501 allows the other rotating shaft 2311 of the impeller 231 or the drive shaft of the blower motor 232 to pass through, thereby connecting the impeller 231 and the blower motor 232 together.

[0087] Continue reading Figure 9 and Figure 10In some embodiments of the present invention, a clearance notch 2502 is provided on the circumferential sidewall of one of the two connecting shaft holes 2501 to avoid the rotating shaft 2311 of the impeller 231, thereby ensuring that the two rotating shafts 2311 are respectively installed in the corresponding connecting shaft holes 2501. That is, when installing the impeller 231, one rotating shaft 2311 of the impeller 231 can be first inserted obliquely into the corresponding connecting shaft hole 2501, and then the other rotating shaft 2311 of the impeller 231 can be inserted into the corresponding connecting shaft hole 2501 along the radial direction of the auxiliary volute 250 (a direction perpendicular to the axial direction o) through the clearance notch 2502.

[0088] Continue reading Figure 9 and Figure 10 In some embodiments of the present invention, the auxiliary air supply device 200 also includes a stop member 260 fixedly connected to the auxiliary volute 250, and the stop member 260 is used to block the avoidance gap 2502 to prevent the rotating shaft 2311 from escaping from the connecting shaft hole 2501 through the avoidance gap 2502.

[0089] Continue reading Figure 9 and Figure 10 In some embodiments of the present invention, a threaded hole 2503 is provided on the auxiliary volute 250, and a through hole 261 is provided on the stop member 260, so that a bolt or screw passes through the through hole 261 and is tightened together with the threaded hole 2503, thereby fixing the stop member 260 to the auxiliary volute 250.

[0090] In addition, in other embodiments of the present invention, those skilled in the art may also use any other feasible method to fix the stop member 260 and the auxiliary volute 250 together as needed, such as snap connection, bonding, hoop connection, etc.

[0091] Continue reading Figure 9 and Figure 10 In some embodiments of the present invention, a drive shaft hole 2506 is further provided on the outside of the other of the two connecting shaft holes 2501 on the auxiliary volute 250, so that the auxiliary volute 250 can be plugged into the drive shaft of the wind direction motor 240 through the drive shaft hole 2506.

[0092] like Figures 9 to 11 As shown, in some embodiments of the present invention, the housing 220 includes a first shell 221 and a second shell 222 , the first shell 221 is fixedly connected to the auxiliary volute 250 , and the first shell 221 is snap-fitted to the second shell 222 .

[0093] The first housing 221 is provided with a snap-fit ​​structure 2211 for connecting to the second housing 222, and the second housing 222 is provided with a snap-fit ​​structure 2221, so that the first housing 221 and the second housing 222 are snap-fitted together via the snap-fit ​​structure 2211 and the snap-fit ​​structure 2221. The first housing 221 is also provided with a connecting shaft hole 2212, and the auxiliary volute 250 is provided with a fixing hole 2504, so that a bolt or screw can pass through the fixing hole 2504 and be tightened together with the connecting shaft hole 2212, thereby fixing the first housing 221 to the auxiliary volute 250. The second housing 222 is also provided with a stop structure 2222, which abuts against the auxiliary volute 250 to prevent the auxiliary volute 250 from rotating.

[0094] Those skilled in the art will appreciate that the above-mentioned fixing structure 112 of the first shell 221, the second shell 222 and the auxiliary volute 250 not only facilitates the connection and fixation between the three, but also enables the second shell 222 to be completely fixed to the auxiliary volute 250 by means of the snap connection between the second shell 221 and the stop relationship between the second shell 222 and the auxiliary volute 250, and the structure is simple and ingenious.

[0095] In addition, in other embodiments of the present invention, those skilled in the art may also use any other feasible method to fix the first housing 220 and the second housing 220 together, such as screw connection, as needed. Those skilled in the art may also use any other feasible method to fix the first housing 220 and the auxiliary volute 250 together, such as clamping, as needed.

[0096] In other embodiments of the present invention, those skilled in the art may further manufacture the first housing 220 and the auxiliary volute 250 as one piece as needed to reduce the number of components.

[0097] Refer to the following Figures 7 to 10 The assembly process of the auxiliary air supply device 200 of the present invention is briefly described.

[0098] First, the air supply motor 232 and the wind direction motor 240 are respectively installed on the corresponding connecting arms 210.

[0099] Then, the first housing 221 is fixed to the auxiliary volute 250 by screws or bolts.

[0100] Subsequently, the impeller 231 is mounted on the auxiliary volute 250 , and then the stopping member 260 is mounted on the auxiliary volute 250 to prevent the impeller 231 from falling off.

[0101] Subsequently, the second housing 222 is mounted on the first housing 221 .

[0102] Finally, the auxiliary volute 250 is plugged into the wind direction motor 240 , and the impeller 231 is plugged into the air supply motor 232 , thereby rotating and connecting the auxiliary volute 250 and the two connecting arms 210 .

[0103] from Figure 7 and Figure 8 As can be seen in the figure, the two protruding portions 212 of the two connecting arms 210 are respectively provided with connecting holes 2122 to avoid the connecting shaft 251 of the auxiliary volute 250. That is, the connecting shaft 251 can be inserted into the connecting hole 2122.

[0104] Thereafter, the two connecting arms 210 can be fixed to the indoor unit body 100 .

[0105] like Figure 12 As shown, the indoor unit body 100 also includes an air outlet channel 103 located between the air-conditioning fan 130 and the air outlet 102, and an air inlet channel (not shown in the figure) located between the air-conditioning fan 130 and the return air outlet 101, so that the air flows through the return air outlet 101, the air inlet channel, the air-conditioning fan 130, the air outlet channel 103 and the air outlet 102 in sequence.

[0106] Continue reading Figure 12 In the assembled state, the minimum distance between the outer shell 220 of the auxiliary air supply device 200 and the peripheral wall of the air outlet channel 103 is d, d≤20mm, especially d≤5mm, to ensure that the air blown out from the auxiliary air outlet 2202 can impact the air blown out from the air outlet 102.

[0107] For example, d can be 3mm, 3.5mm, 5mm, 7mm, 8mm, 12mm, 15mm, 18mm, 20mm, etc.

[0108] Refer to the following Figure 12 The working principle of the wall-mounted air-conditioning indoor unit 001 in some embodiments of the present invention is briefly described.

[0109] During operation, the air conditioning fan 130 rotates, causing the indoor unit body 100 to blow air out of the air outlet 102. The air supply motor 232 drives the impeller 231 to rotate, causing the impeller 231 to drive air out of the auxiliary air outlet 2202. The air mixes with the air from the air outlet 102, thereby increasing the air volume and speed. To adjust the direction of the auxiliary air outlet 2202, the wind direction control motor 240 rotates until it reaches the desired position.

[0110] Based on the foregoing description, those skilled in the art will understand that the wall-mounted air-conditioning indoor unit 001 of the present invention, with the assistance of the auxiliary air supply device 200, can not only make the cold air blown out of the indoor unit body 100 fall to the ground (the auxiliary air supply device 200 blows air downward), but also can make the wind fly far away and have the effect of uniform temperature.

[0111] In the present invention, the wind direction motor 240 can be a stepping motor to accurately control the rotation angle of the housing 220 and its internal components. The air supply motor 232 can be a fixed frequency motor or a variable frequency motor.

[0112] Furthermore, in other embodiments of the present invention, those skilled in the art may also configure the auxiliary air supply device 200 to be suitable for a conventional wall-mounted air conditioner indoor unit 001 as needed. For example, the side of the connecting arm 210 near the housing 220 may be configured as a flat surface, so that the connecting arm 210 can be secured to the conventional wall-mounted air conditioner indoor unit 001 by gluing. Alternatively, a plurality of suction cups may be provided on the side of the connecting arm 210 near the housing 220, so that the connecting arm 210 can be secured to the conventional wall-mounted air conditioner indoor unit 001 by negative pressure suction.

[0113] Those skilled in the art will appreciate that the auxiliary air supply device 200 applicable to a common wall-mounted air conditioner indoor unit 001 allows users to purchase the auxiliary air supply device 200 separately and install the auxiliary air supply device 200 on the existing wall-mounted air conditioner indoor unit 001. This auxiliary air supply device 200 has a wider applicability.

[0114] In addition, in other embodiments of the present invention, those skilled in the art may also omit the wind direction motor 240 as needed, and rotatably connect the auxiliary volute 250 to the connecting arm 210 by a connecting shaft 251 away from the air supply motor 232. Then, the user can manually rotate the angle of the housing 220 as needed.

[0115] Furthermore, in other embodiments of the present invention, those skilled in the art may, as needed, omit the wind direction motor 240 and fix the auxiliary volute 250 to the two connecting arms 210 to fix the auxiliary air outlet 2202. In other words, the auxiliary air supply device 200 always blows air in one direction.

[0116] Thus far, the technical solutions of the present invention have been described in conjunction with the above-mentioned multiple embodiments. However, it is easy for those skilled in the art to understand that the scope of protection of the present invention is not limited to these specific embodiments. Without departing from the technical principles of the present invention, those skilled in the art may split and combine the technical solutions of the above-mentioned various embodiments, and may also make equivalent changes or replacements to the relevant technical features. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present invention shall fall within the scope of protection of the present invention.

Claims

1. An auxiliary air supply device, characterized in that: Applicable to wall-mounted air conditioner indoor units and includes: at least one connecting arm for connecting to a casing of the wall-mounted air conditioner indoor unit; a housing connected to the connecting arm and provided with an auxiliary air inlet and an auxiliary air outlet; The cross-flow fan comprises an impeller arranged in the housing and an air supply motor driving the impeller to rotate. The cross-flow fan is used to drive air into the housing from the auxiliary air inlet and blow out of the housing from the auxiliary air outlet.

2. The auxiliary air supply device according to claim 1, characterized in that: The auxiliary air supply device includes two connecting arms, and the two connecting arms are respectively used to connect the left and right sides of the casing; The housing is arranged between the two connecting arms.

3. The auxiliary air supply device according to claim 2, characterized in that: The two connecting arms are respectively provided with protrusions on one side opposite to each other, so as to be connected to the housing through the protrusions.

4. The auxiliary air supply device according to claim 3, characterized in that: The blower motor is mounted to the protrusion on one of the two connecting arms.

5. The auxiliary air supply device according to any one of claims 2 to 4, characterized in that: The housing is rotatably connected to the two connecting arms respectively; and / or, The housing is configured as a cylindrical structure.

6. The auxiliary air supply device according to any one of claims 1 to 4, characterized in that: The auxiliary air supply device further comprises an auxiliary volute disposed in the housing, wherein the auxiliary volute is fixedly connected to the housing or is integrally formed with the housing; The impeller is rotatably connected to the auxiliary volute.

7. The auxiliary air supply device according to claim 6, characterized in that: The housing includes a first shell and a second shell, The auxiliary volute is fixedly connected to the first housing, and the first housing is clamped to the second housing.

8. The auxiliary air supply device according to claim 7, characterized in that: The second housing is provided with a stop structure, which abuts against the auxiliary volute to prevent the auxiliary volute from rotating.

9. The auxiliary air supply device according to claim 7, characterized in that: The two ends of the impeller in the axial direction are respectively provided with a rotating shaft; The auxiliary volute is provided with two shaft holes for installing the rotating shafts, and a circumferential side wall of one of the two shaft holes is provided with an avoidance notch to avoid the rotating shaft of the impeller, thereby ensuring that the two rotating shafts are respectively installed in the corresponding shaft holes; The auxiliary air supply device further comprises a stop member fixedly connected to the auxiliary volute, wherein the stop member is used to block the avoidance gap to prevent the rotating shaft from escaping from the shaft hole through the avoidance gap.

10. A wall-mounted air conditioner indoor unit, characterized in that: The indoor unit comprises an indoor unit body and the auxiliary air supply device according to any one of claims 1 to 9.

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