Guide plate, air conditioner indoor unit and air conditioner

Abstract

The utility model provides a flow guide plate, an air conditioner indoor unit and an air conditioner. The flow guide plate is arranged between an indoor heat exchanger of an indoor unit of the air conditioner and a front volute tongue of a volute, the flow guide plate comprises a flow guide face, the flow guide face is arranged to guide air flowing through the indoor heat exchanger to a volute air inlet of the volute, and the molded line, extending in the flow guide direction, of the flow guide face is a spline curve. The molded line, extending in the flow guide direction, of the flow guide face of the flow guide plate is arranged to be the spline curve, the whole flow guide face is smoother and free of sudden change, then airflow flowing to the volute air inlet of the volute from the indoor heat exchanger through the flow guide face is smoother, flowing resistance and air inlet resistance of the volute air inlet are reduced, and the air inlet amount is increased advantageously.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of air conditioning technology, and specifically refers to a deflector, an indoor unit of an air conditioner, and an air conditioner. Background Art

[0002] In the related art, there is an indoor unit of an air conditioner. A deflector is provided between the volute tongue of the volute and the heat exchanger (indoor heat exchanger). A deflector surface is provided on the deflector, and the deflector surface is a cylindrical surface. The purpose of setting the deflector is to improve the stability of the air flow in the air inlet space formed between the heat exchanger and the fan, and to avoid surging of the indoor unit of the air conditioner. However, eddy currents are generated when the air flow flows in the air inlet space, which affects the air volume. Summary of the Utility Model

[0003] An embodiment of this application provides a deflector. The deflector is arranged between the indoor heat exchanger of the indoor unit of the air conditioner and the front volute tongue of the volute. The deflector includes a deflector surface. The deflector surface is arranged to guide the air flowing through the indoor heat exchanger to the volute air inlet of the volute, and the profile line of the deflector surface extending along the deflector direction is a spline curve.

[0004] In some exemplary embodiments, the spline curve has at least three control points, and a curve segment is formed between adjacent two of the control points, so that the spline curve includes a plurality of the curve segments;

[0005] The plurality of curve segments include a first curve segment close to the air outlet side of the deflector surface. The air outlet end of the first curve segment is close to the air outlet side of the deflector surface. The incoming air end face of the front volute tongue facing the incoming air side is arranged to be flush with and tangent to the air outlet end of the first curve segment.

[0006] In some exemplary embodiments, the plurality of curve segments further include a second curve segment close to the incoming air side of the deflector surface. The incoming air end of the second curve segment is close to the incoming air side of the deflector surface. The first end face of the indoor heat exchanger close to the front volute tongue is arranged to be flush with and tangent to the incoming air end of the second curve segment.

[0007] In some exemplary embodiments, the plurality of curve segments further include at least one intermediate curve segment located between the first curve segment and the second curve segment.

[0008] In some exemplary embodiments, the plurality of curve segments are all concave curves, so that the deflector surface is a concave surface.

[0009] In some exemplary embodiments, the control points of the spline curve include a first control point and a second control point, the first control point and the second control point are arranged to be in contact with the indoor heat exchanger and the front volute tongue respectively, and the distance from the points on the spline curve to the connection line formed by connecting the first control point and the second control point is not greater than 7 mm.

[0010] In some exemplary embodiments, a support portion is provided on the windward side of the guiding surface, and the support portion is arranged to support the indoor heat exchanger.

[0011] In some exemplary embodiments, the support portion includes a support convex portion, the support convex portion is provided with a stepped structure, the stepped structure includes a first limiting surface and a second limiting surface, the first limiting surface is arranged to support the first end surface of the indoor heat exchanger close to the front volute tongue, and the second limiting surface is arranged to abut and limit the leeward side surface of the indoor heat exchanger.

[0012] In some exemplary embodiments, the guiding plate includes a leeward plate surface opposite to the guiding surface, and a first limiting portion is provided on the leeward plate surface, and the first limiting portion is arranged to cooperate with a second limiting portion provided on the outer wall surface of the volute to limit the guiding plate in the axial direction of the volute.

[0013] In some exemplary embodiments, the first limiting portion includes a plurality of limiting grooves arranged in sequence along the length direction of the guiding plate.

[0014] In some exemplary embodiments, the guiding plate is provided with a first fixing portion, and the first fixing portion is arranged to be fixedly connected to the volute.

[0015] In some exemplary embodiments, the first fixing portion includes a row of screw holes or multiple rows of screw holes arranged along the guiding direction of the guiding plate, and each row of screw holes includes a plurality of screw holes arranged in sequence along the length direction of the guiding plate.

[0016] The embodiment of the present application further provides an indoor unit of an air conditioner, including:

[0017] An indoor heat exchanger;

[0018] A volute, arranged on the air outlet side of the indoor heat exchanger; and

[0019] The guiding plate according to any one of the above embodiments, arranged between the indoor heat exchanger and the front volute tongue of the volute, and fixedly connected to at least one of the indoor heat exchanger and the volute, and the guiding surface of the guiding plate is arranged to guide the air flowing through the indoor heat exchanger to the volute air inlet of the volute.

[0020] The windward end surface of the front volute tongue facing the windward side is a plane, and is flush and tangent to the air outlet end of the first curve segment of the guiding surface;

[0021] The indoor heat exchanger includes a first end face adjacent to the front volute tongue, the first end face being a flat surface and flush and tangent to the incoming air end of the second curve section of the air guiding surface.

[0022] In some exemplary embodiments, the volute includes a first volute side wall connected to the front volute tongue, and an outer wall surface of the first volute side wall is provided with a second limiting portion, and the second limiting portion cooperates with the first limiting portion of the air guiding plate for limiting.

[0023] In some exemplary embodiments, the second limiting portion includes a plurality of reinforcing ribs connected between the outer wall surface of the first volute side wall and the outer wall surface of the front volute tongue, the plurality of reinforcing ribs are sequentially arranged along the axis direction of the volute, and the plurality of reinforcing ribs respectively cooperate with a plurality of limiting grooves of the first limiting portion for limiting.

[0024] In some exemplary embodiments, the volute includes a first volute side wall connected to the front volute tongue, and an outer wall surface of the first volute side wall is provided with a second fixing portion, and the second fixing portion is fixedly connected to the first fixing portion of the air guiding plate.

[0025] In some exemplary embodiments, the second fixing portion includes a row of screw posts or multiple rows of screw posts, each row of screw posts includes a plurality of screw posts sequentially arranged along the axis direction of the volute, and the plurality of screw posts respectively correspond to a plurality of screw holes of the first fixing portion and are fixed by screws.

[0026] In some exemplary embodiments, the outer wall surface of the first volute side wall is provided with a support rib extending along the axis direction of the volute, and the support rib abuts against and limits the leeward plate surface of the air guiding plate;

[0027] A row of screw posts is arranged on the support rib; and / or, at least one row of screw posts is arranged at an interval from the support rib.

[0028] In some exemplary embodiments, the indoor heat exchanger includes a first end face adjacent to the front volute tongue and a leeward side face located on the leeward side, the first end face of the indoor heat exchanger is supported on the first limiting surface of the air guiding plate, and the leeward side face of the indoor heat exchanger abuts against and limits the second limiting surface of the air guiding plate.

[0029] In some exemplary embodiments, the volute includes a first volute side wall connected to the front volute tongue, and an installation cavity is formed among the front volute tongue, the first volute side wall and the air guiding plate;

[0030] The indoor unit of the air conditioner further includes an air purification module, and the air purification module is installed in the installation cavity and extends into the volute through the first volute side wall.

[0031] In some exemplary embodiments, a wire passing buckle is provided in the installation cavity, an end cover is provided at one axial end of the volute, a wire passing hole is provided in the end cover, and the wire of the air purification module passes through the wire passing buckle and exits through the wire passing hole.

[0032] In some exemplary embodiments, the flow guiding plate and the volute are of an integral structure, or the flow guiding plate and the volute are of a split structure.

[0033] In some exemplary embodiments, the indoor unit of the air conditioner is a floor-standing unit or a wall-mounted unit arranged longitudinally.

[0034] The embodiment of the present application also provides an air conditioner, including the indoor unit of the air conditioner described in any one of the above embodiments.

[0035] The flow guiding plate provided by the embodiment of the present application can be arranged between the indoor heat exchanger of the indoor unit of the air conditioner and the front volute tongue of the volute, so as to guide the air flowing through the indoor heat exchanger to the volute air inlet of the volute by using the flow guiding surface of the flow guiding plate. The profile line of the flow guiding surface of the flow guiding plate extending along the flow guiding direction can be set as a spline curve, so that the overall flow guiding surface is smoother and has no mutation, and further makes the air flow flowing from the indoor heat exchanger to the volute air inlet of the volute through the flow guiding surface more smooth, reduces the flow resistance and the air inlet resistance of the volute air inlet, and is beneficial to improving the air intake volume. Description of the Drawings

[0036] Figure 1 is a front view structural schematic diagram of an indoor unit of an air conditioner provided by some embodiments of the present application;

[0037] Figure 2 is Figure 1 an exploded structural schematic diagram of the indoor unit of the air conditioner shown;

[0038] Figure 3 is Figure 1 an exploded structural schematic diagram of the indoor heat exchanger, volute, flow guiding plate and fan assembly of the indoor unit of the air conditioner shown;

[0039] Figure 4 is Figure 3 a front view structural schematic diagram of the structure shown;

[0040] Figure 5 is Figure 4 a sectional structural schematic diagram taken along the A-A direction of ;

[0041] Figure 6 is Figure 3 an assembly schematic diagram of the structure shown;

[0042] Figure 7 is Figure 6 a sectional structural schematic diagram taken along the B-B direction of ;

[0043] Figure 8 is Figure 7 an enlarged schematic view of the C part structure;

[0044] Figure 9 is Figure 1 a partial structure schematic view of the indoor heat exchanger, volute and deflector of the air conditioner indoor unit shown;

[0045] Figure 10 is Figure 1 a sectional view schematic of the volute and deflector of the air conditioner indoor unit shown;

[0046] Figure 11 is Figure 10 an enlarged schematic view of the D part structure;

[0047] Figure 12 is Figure 1 a three-dimensional structure schematic view of the volute of the air conditioner indoor unit shown;

[0048] Figure 13 is Figure 12 an enlarged schematic view of the E part structure;

[0049] Figure 14 is Figure 12 another three-dimensional structure schematic view of the volute shown;

[0050] Figure 15 is Figure 12 yet another three-dimensional structure schematic view of the volute shown;

[0051] Figure 16 is Figure 12 a front view structure schematic view of the volute shown.

[0052] In the drawings, the list of components represented by each label is as follows:

[0053] 1 - deflector, 11 - deflector surface, 12 - leeward surface, 13 - screw hole, 14 - support part, 141 - first limiting surface, 142 - second limiting surface;

[0054] 2 - volute, 21 - front volute tongue, 211 - incoming air end face, 22 - first volute side wall, 221 - reinforcing rib, 222 - support rib, 223 - screw post, 224 - connecting rib, 23 - installation cavity, 231 - wire passing buckle, 24 - end cover, 241 - wire passing hole, 25 - volute air inlet, 26 - screw;

[0055] 3 - indoor heat exchanger, 31 - first end face, 32 - leeward side face;

[0056] 4 - air purification module, 41 - wire;

[0057] 51 - Upper box body, 52 - Lower box body, 53 - Front panel, 54 - Rear housing, 55 - Top cover, 61 - Wind wheel, 62 - Motor, 7 - Heat exchanger bracket. Specific embodiments

[0058] The principles and features of the present application will be described below with reference to the accompanying drawings. The examples given are only used to explain the present application and are not intended to limit the scope of the present application.

[0059] As Figures 1 - 16 shown, an embodiment of the present application provides a deflector 1, which can be used in an indoor unit of an air conditioner, and the deflector 1 is arranged between the indoor heat exchanger 3 and the front volute tongue 21 of the volute 2 of the indoor unit of the air conditioner.

[0060] The deflector 1 includes a deflector surface 11, and the deflector surface 11 is arranged to guide the air flowing through the indoor heat exchanger 3 to the volute air inlet 25 of the volute 2, and the profile line of the deflector surface 11 extending along the deflector direction is a spline curve L2 (as Figure 9 shown).

[0061] The deflector 1 can be arranged between the indoor heat exchanger 3 and the front volute tongue 21 of the volute 2 of the indoor unit of the air conditioner, so as to use the deflector surface 11 of the deflector 1 to guide the air flowing through the indoor heat exchanger 3 to the volute air inlet 25 of the volute 2. The profile line of the deflector surface 11 of the deflector 1 extending along the deflector direction (i.e., the direction in which the air flow flows along the deflector surface 11) can be set as a spline curve L2 (or, the cross-sectional line of the deflector surface 11 of the deflector 1 is a spline curve L2), so that the overall deflector surface 11 is smoother and has no sudden change, and further makes the air flow flowing from the indoor heat exchanger 3 through the deflector surface 11 to the volute air inlet 25 of the volute 2 flow more smoothly, reducing the flow resistance and the air inlet resistance of the volute air inlet 25, which is beneficial to improving the air intake volume.

[0062] In some exemplary embodiments, as Figure 9 shown, the spline curve L2 has at least three control points (such as: control points P1 - P4), and a curve segment is formed between adjacent two control points, so that the spline curve includes a plurality of curve segments. The plurality of curve segments include a first curve segment P1P2 close to the air outlet side of the deflector surface 11. The air outlet end (the end where the control point P1 is located) of the first curve segment P1P2 is close to the air outlet side of the deflector surface 11, and the incoming air end face 211 of the front volute tongue 21 facing the incoming air side is arranged to be flush with and tangent to the air outlet end of the first curve segment P1P2.

[0063] The profile line of the flow guiding surface 11 of the flow guiding plate 1 extending along the flow guiding direction can be set as a spline curve L2. A curve segment is formed between two adjacent control points of the spline curve L2, and multiple curve segments of the spline curve are smoothly connected to achieve smooth transition and continuity between multiple curve lines. Among them, the curve segment near the air outlet side of the flow guiding surface 11 is the first curve segment P1P2. The front volute tongue 21 of the volute 2 has an air inlet end face 211 facing the air inlet side. The air inlet end face 211 can be a plane, and this plane can be flush and tangent to the air outlet end (the end where the control point P1 is located) of the first curve segment P1P2, so as to smoothly guide the air flow flowing out from the air outlet side of the flow guiding surface 11 to the volute air inlet 25 of the volute 2, making the air flow more smooth, reducing the occurrence of sudden changes in air flow direction, turbulence, etc., being beneficial to reducing wind resistance and increasing air volume.

[0064] In some exemplary embodiments, such as Figure 9 shown, the multiple curve segments further include a second curve segment P3P4 near the air inlet side of the flow guiding surface 11. The air inlet end (the end where the control point P4 is located) of the second curve segment P3P4 is close to the air inlet side of the flow guiding surface 11. The first end face 31 of the indoor heat exchanger 3 near the front volute tongue 21 is set to be flush and tangent to the air inlet end of the second curve segment P3P4.

[0065] The profile line of the flow guiding surface 11 of the flow guiding plate 1 extending along the flow guiding direction can be set as a spline curve L2. Among the multiple curve segments formed between two adjacent control points of the spline curve L2, the curve segment near the air inlet side of the flow guiding surface 11 is the second curve segment P3P4. The first end face 31 of the indoor heat exchanger 3 near the front volute tongue 21 can be a plane, and this plane can be flush and tangent to the air inlet end of the second curve segment P3P4, so that the air flow passing through the indoor heat exchanger 3 can smoothly flow along the flow guiding surface 11, making the air flow more smooth, reducing the occurrence of sudden changes in air flow direction, turbulence, etc., being beneficial to reducing wind resistance and increasing air volume.

[0066] In some exemplary embodiments, such as Figure 9 shown, the multiple curve segments further include at least one intermediate curve segment P2P3 located between the first curve segment and the second curve segment. Among them, the multiple curve segments are all concave curves, that is, the first curve segment P1P2, the second curve segment P3P4, and the intermediate curve segment P2P3 are all concave curves, so that the flow guiding surface 11 is a concave surface.

[0067] The profile line of the flow guiding surface 11 of the flow guiding plate 1 extending along the flow guiding direction can be set as a spline curve L2. The spline curve L2 has at least four control points so that the spline curve includes at least three curve segments, and at least one intermediate curve segment P2P3 is provided between the first curve segment P1P2 and the second curve segment P3P4. By changing the number of control points and curve segments of the spline curve L2, the shape of the spline curve L2 and the flow guiding surface 11 can be flexibly adjusted to adapt to different requirements.

[0068] Specifically, as Figure 9 shown, the spline curve L2 may have four control points P1 - P4, so that the spline curve L2 may include three curve segments: the curve segment P1P2, the curve segment P2P3, and the curve segment P3P4. The first curve segment P1P2 and the second curve segment P3P4 may be tangent to the incoming air end face 211 of the front volute tongue 21 and the first end face 31 of the indoor heat exchanger 3 respectively. The middle curve segment P2P3 may be recessed as much as possible (such as Figure 9 shown, bent downward), so as to increase the air inlet space formed among the volute 2, the indoor heat exchanger 3, and the guide plate 1, which is more conducive to air inlet.

[0069] It should be understood that the number of control points and curve segments of the spline curve L2 is not limited to the above, and can also be adjusted according to actual needs.

[0070] In some exemplary embodiments, as Figure 9 shown, the control points of the spline curve L2 include the first control point P4 and the second control point P1. The first control point P4 and the second control point P1 are set to be in contact with the indoor heat exchanger 3 and the front volute tongue 21 respectively. The distance S between the points on the spline curve L2 and the connection line L1 formed by connecting the first control point P4 and the second control point P1 is not greater than 7 mm, such as: it can be 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, etc.

[0071] As Figure 9 shown, the spline curve L2 includes the first control point P4 and the second control point P1 that are in contact with the indoor heat exchanger 3 and the front volute tongue 21 respectively. Connecting the first control point P4 and the second control point P1 forms a connection line L1 (this connection line L1 can also be regarded as the connection line between the adjacent ends of the first end face 31 of the indoor heat exchanger 3 and the incoming air end face 211 of the front volute tongue 21). The distance between the points on the spline curve L2 and this connection line L1 (that is, draw a perpendicular line from the points on the spline curve L2 to this connection line L1, and the length of this perpendicular line segment is the distance between the points on the spline curve L2 and this connection line L1) S is set to be not greater than 7 mm.

[0072] Since each curve segment of the spline curve L2 is a concave curve and the air guiding surface 11 is a concave surface, the spline curve L2 is arranged in a sunken manner relative to the connecting line L1. In addition, compared with the case where the air guiding surface is an arc surface and the profile line extending along the air guiding direction of the arc surface is an arc line L2 passing through the first control point P4 and the second control point P1, the profile line of the air guiding surface 11 in the embodiment of the present application is the spline curve L2, and other control points (such as control points P2, P3, etc.) of the spline curve L2 except the first control point P4 and the second control point P1 can be arranged on the side of the arc line L2 far from the connecting line L1, so that the sunken degree of the spline curve L2 is greater than that of the arc line L2, so as to increase the air inlet space formed among the volute 2, the indoor heat exchanger 3 and the air guiding plate 1, which is more beneficial to air inlet.

[0073] The distance S is set to be not greater than 7 mm, which avoids the problem that when S is too large, the air flow needs to make a large-angle turn during the flow along the air guiding surface 11, and is beneficial to improving the air flow.

[0074] Of course, the range of the distance S is not limited to the above, and can also be adjusted according to actual needs.

[0075] In some exemplary embodiments, the air guiding plate 1 includes a leeward plate surface 12 opposite to the air guiding surface 11 (as Figure 8 shown), and the leeward plate surface 12 is provided with a first limiting portion, and the first limiting portion is arranged to cooperate with a second limiting portion provided on the outer wall surface of the volute 2 to limit the air guiding plate 1 in the axial direction of the volute 2.

[0076] The length direction of the air guiding plate 1 can be parallel to the axial direction of the volute 2, and the length of the air guiding plate 1 can be approximately equal to the axial length of the volute 2. The leeward plate surface 12 of the air guiding plate 1 is provided with a first limiting portion, and the outer wall surface of the volute 2 is provided with a second limiting portion. The first limiting portion and the second limiting portion can cooperate to limit the air guiding plate 1 in the axial direction of the volute 2 to prevent the air guiding plate 1 from moving.

[0077] In some exemplary embodiments, the first limiting portion includes a plurality of limiting grooves sequentially arranged along the length direction of the air guiding plate 1.

[0078] The first limiting portion includes a plurality of limiting grooves sequentially arranged along the length direction of the air guiding plate 1. The second limiting portion may include a plurality of reinforcing ribs 221 connected between the outer wall surface of the first volute side wall 22 and the outer wall surface of the front volute tongue 21 (as Figure 8 and Figures 11 - 14 shown). The plurality of reinforcing ribs 221 are sequentially arranged along the axial direction of the volute 2. The plurality of reinforcing ribs 221 of the second limiting portion are in one-to-one correspondence and cooperation with the plurality of limiting grooves of the first limiting portion to limit the air guiding plate 1 in the axial direction of the volute 2.

[0079] Of course, the first limiting portion can also be configured to include a plurality of reinforcing ribs 221. Correspondingly, the second limiting portion can be configured to include a plurality of limiting grooves.

[0080] In some exemplary embodiments, the deflector 1 is provided with a first fixing portion, and the first fixing portion is configured to be fixedly connected to the volute 2.

[0081] The deflector 1 is provided with a first fixing portion, and the outer wall surface of the volute 2 may be provided with a second fixing portion. The second fixing portion is fixedly connected to the first fixing portion to fix the deflector 1 and the volute 2.

[0082] In some exemplary embodiments, as Figure 11 shown, the first fixing portion may include a row of screw holes or multiple rows of screw holes arranged along the flow guiding direction of the deflector 1. Each row of screw holes may include a plurality of screw holes 13 sequentially arranged along the length direction of the deflector; correspondingly, as Figures 11 - 14 shown, the second fixing portion may include a row of screw posts or multiple rows of screw posts. Each row of screw posts includes a plurality of screw posts 223 sequentially arranged along the axis direction of the volute 2. The multiple screw posts 223 of the second fixing portion correspond to the multiple screw holes 13 of the first fixing portion one by one and are fixed by screws 26.

[0083] The deflector 1 is provided with screw holes 13, and the outer wall surface of the volute 2 is provided with screw posts 223. The screws 26 can pass through the screw holes 13 and be threadedly connected to the threaded holes of the screw posts 223 to realize the screw 26 fixation of the deflector 1 and the volute 2. Of course, the deflector 1 and the volute 2 are not limited to being fixed by screws 26 and can also be fixed by other means (such as: snap fasteners, etc.).

[0084] In some exemplary embodiments, as Figure 8 shown, a support portion 14 is provided on the windward side of the flow guiding surface 11, and the support portion 14 is configured to support the indoor heat exchanger 3.

[0085] The first end face 31 of the indoor heat exchanger 3 can be lapped on the support portion 14 of the deflector 1, and the support portion 14 can support and limit the indoor heat exchanger 3 to prevent the indoor heat exchanger 3 from deforming and bending.

[0086] In some exemplary embodiments, as Figure 8 shown, the support portion 14 includes a support convex portion. The support convex portion is provided with a stepped structure. The stepped structure includes a first limiting surface 141 and a second limiting surface 142. The first limiting surface 141 is configured to support the first end face 31 of the indoor heat exchanger 3 close to the front volute tongue 21, and the second limiting surface 142 is configured to abut against and limit the leeward side face 32 of the indoor heat exchanger 3.

[0087] A support convex portion is provided on the windward side of the guiding surface 11 of the deflector 1. The support convex portion protrudes from the guiding surface 11 and is provided with a stepped structure. The indoor heat exchanger 3 is lapped on the stepped structure, and the first limiting surface 141 of the stepped structure supports the first end surface 31 of the indoor heat exchanger 3 close to the front volute tongue 21. The second limiting surface 142 of the stepped structure is arranged to abut and limit the leeward side surface 32 of the indoor heat exchanger 3. By supporting and limiting the indoor heat exchanger 3 through the first limiting surface 141 and the second limiting surface 142 of the stepped structure, the deformation and bending of the indoor heat exchanger 3 can be prevented.

[0088] The embodiment of the present application also provides an indoor unit of an air conditioner, as Figures 1 - 16 shown, which includes an indoor heat exchanger 3, a volute 2, and the deflector 1 in any of the above embodiments. The volute 2 is arranged on the air outlet side of the indoor heat exchanger 3. The deflector 1 is arranged between the indoor heat exchanger 3 and the front volute tongue 21 of the volute 2 and is fixedly connected to at least one of the indoor heat exchanger 3 and the volute 2. The guiding surface 11 of the deflector 1 is arranged to guide the air flowing through the indoor heat exchanger 3 to the volute air inlet 25 of the volute 2.

[0089] In this indoor unit of the air conditioner, the deflector 1 is arranged in front of the evaporator and the volute 2. The air flowing through the indoor heat exchanger 3 can flow to the volute air inlet 25 of the volute 2 through the guiding of the deflector 1. The profile line of the guiding surface 11 of the deflector 1 extending along the guiding direction is a spline curve. Through the guiding of the deflector 1, it is beneficial to reduce the flow resistance and increase the air intake volume.

[0090] In some exemplary embodiments, as Figure 9 shown, the windward end surface 211 of the front volute tongue 21 facing the windward side is a plane and is flush and tangent to the air outlet end of the first curve segment P1P2 of the guiding surface 11. The indoor heat exchanger 3 includes a first end surface 31 close to the front volute tongue 21. The first end surface 31 is a plane and is flush and tangent to the windward end of the second curve segment P3P4 of the guiding surface 11.

[0091] The windward end surface 211 of the front volute tongue 21 is flush and tangent to the air outlet end of the first curve segment P1P2 of the guiding surface 11, and the first end surface 31 of the indoor heat exchanger 3 is flush and tangent to the windward end of the second curve segment P3P4 of the guiding surface 11, which is beneficial to the smoother flow of the air flow, reduces the occurrence of sudden changes in the air flow direction, turbulence, etc., is beneficial to reducing the wind resistance, and increases the air volume.

[0092] In some exemplary embodiments, as Figure 8 、 Figures 11 - 14As shown, the volute 2 includes a first volute side wall 22 connected to the front volute tongue 21. A second limiting portion is provided on the outer wall surface of the first volute side wall 22, and the second limiting portion cooperates with the first limiting portion of the guide vane 1 for limiting. Among them, the second limiting portion may include a plurality of reinforcing ribs 221 connected between the outer wall surface of the first volute side wall 22 and the outer wall surface of the front volute tongue 21. The plurality of reinforcing ribs 221 are arranged in sequence along the axis direction of the volute 2, and the plurality of reinforcing ribs 221 cooperate with the plurality of limiting grooves of the first limiting portion one by one for limiting.

[0093] Between the outer wall surface of the first volute side wall 22 of the volute 2 and the outer wall surface of the front volute tongue 21, a plurality of reinforcing ribs 221 are arranged in sequence along the axis direction of the volute 2. The plurality of reinforcing ribs 221 can not only enhance the structural strength of the volute 2, but also cooperate with the plurality of limiting grooves of the first limiting portion of the guide vane 1 one by one for limiting, so as to limit the guide vane 1 along the axis direction of the volute 2 and prevent the guide vane 1 from moving.

[0094] In some exemplary embodiments, a second fixing portion is provided on the outer wall surface of the first volute side wall 22 of the volute 2, and the second fixing portion is fixedly connected to the first fixing portion of the guide vane 1. Among them, as Figures 11 - 14 shown, the second fixing portion includes a row of screw posts or multiple rows of screw posts. Each row of screw posts includes a plurality of screw posts 223 arranged in sequence along the axis direction of the volute 2, and the plurality of screw posts 223 correspond to the plurality of screw holes 13 of the first fixing portion one by one and are fixed by screws 26.

[0095] On the outer wall surface of the first volute side wall 22 of the volute 2, there is a row or multiple rows of screw posts. The guide vane 1 is provided with a row or multiple rows of screw holes. The plurality of screw posts 223 correspond to the plurality of screw holes 13 one by one and are fixed by screws 26 to realize the screw 26 fixation of the guide vane 1 and the volute 2.

[0096] In some exemplary embodiments, as Figures 11 - 14 shown, a support rib 222 extending along the axis direction of the volute 2 is provided on the outer wall surface of the first volute side wall 22. The support rib 222 abuts against the windward side surface 12 of the guide vane 1 for limiting to prevent the guide vane 1 from deforming. Among them, as Figure 13 shown, a plurality of connecting ribs 224 may be provided on the side wall surface of the support rib 222 for strengthening the support rib 222, thereby enhancing the support effect on the guide vane 1.

[0097] In some exemplary embodiments, among at least one row of screw posts provided on the outer wall surface of the first volute side wall 22 of the volute 2, one row of screw posts may be arranged on the support rib 222; and / or, at least one row of screw posts may be arranged at intervals with the support rib 222. As Figures 11 - 14As shown, on the outer wall surface of the first volute side wall 22 of the volute 2, there are two rows of screw posts for fixing the deflector 1. One row of screw posts is arranged on the support rib 222, and the other row of screw posts is arranged on the outer wall surface of the first volute side wall 22 and is spaced from the support rib 222.

[0098] In some exemplary embodiments, such as Figure 8 As shown, the indoor heat exchanger 3 includes a first end face 31 close to the front volute tongue 21 and a leeward side face 32 located on the leeward side. The first end face 31 of the indoor heat exchanger 3 is supported on the first limiting face 141 of the deflector 1, and the leeward side face 32 of the indoor heat exchanger 3 abuts against and is limited by the second limiting face 142 of the deflector 1.

[0099] Such as Figure 8 As shown, one end of the deflector 1 is fixedly connected to the volute 2, and the other end is lapped with the indoor heat exchanger 3. Moreover, the first end face 31 of the indoor heat exchanger 3 is supported on the first limiting face 141 on the supporting convex part of the deflector 1, and the leeward side face 32 of the indoor heat exchanger 3 abuts against and is limited by the second limiting face 142 on the supporting convex part of the deflector 1, so that the deflector 1 supports the indoor heat exchanger 3 and prevents the indoor heat exchanger 3 from deforming.

[0100] In some exemplary embodiments, such as Figure 8 and Figures 10 - 14 As shown, an installation cavity 23 is formed among the front volute tongue 21, the first volute side wall 22 and the deflector 1 of the volute 2; the indoor unit of the air conditioner further includes an air purification module 4, and the air purification module 4 is installed in the installation cavity 23 and passes through the first volute side wall 22 to extend into the volute 2. Among them, the air purification module 4 can be an ion generator (such as: a negative ion generator) or other modules with air purification functions.

[0101] An installation cavity 23 is formed among the front volute tongue 21, the first volute side wall 22 and the deflector 1 of the volute 2. The deflector 1 can isolate the installation cavity 23 from the air inlet space formed among the volute 2, the indoor heat exchanger 3 and the deflector 1, so that the installation cavity 23 is independently arranged relative to the air inlet space and can be used for installing the air purification module 4. One end of the air purification module 4 can pass through the first volute side wall 22 and extend into the volute 2, so that the air purification module 4 can purify the air in the volute 2.

[0102] Structures such as the reinforcing rib 221, the support rib 222, and the screw post 223 of the volute 2 can also be arranged in the installation cavity 23.

[0103] In some exemplary embodiments, such as Figure 8 and Figures 10 - 16 As shown, a wire passing buckle 231 is arranged in the installation cavity 23, and an end cover 24 is arranged at one axial end of the volute 2. The end cover 24 is provided with a wire passing hole 241, and the wire 41 of the air purification module 4 passes through the wire passing buckle 231 and exits from the wire passing hole 241.

[0104] A plurality of wire-passing buckles 231 may be provided in the installation cavity 23 formed between the front volute tongue 21 of the volute 2, the first volute side wall 22 and the guide plate 1, and the plurality of wire-passing buckles 231 may be arranged in sequence along the axial direction of the volute 2; a plurality of air purification modules 4 may be provided, and they are arranged in sequence along the axial direction of the volute 2. The wire 41 connected to the air purification module 4 may pass through the wire-passing buckle 231, and may pass through the wire-passing hole 241 on the end cover 24 at one axial end of the volute 2.

[0105] The installation cavity 23 is isolated from the air inlet space formed between the volute 2, the indoor heat exchanger 3 and the guide plate 1, which can provide the air purification module 4 with an independent wiring space, ensuring that the wires 41 of the air purification module 4 will not be sucked into the air inlet space and rolled into the wind wheel, causing the wind wheel to get stuck or damaged.

[0106] A wire passing buckle 231 is provided in the installation cavity 23, which can pre-fix the wire 41. After the wire 41 is pre-fixed, it can be connected from one axial end of the volute 2, and then the guide plate 1 can be fixed to completely separate the air purification module 4 from the air inlet space formed between the volute 2, the indoor heat exchanger 3 and the guide plate 1.

[0107] In some exemplary embodiments, the guide plate 1 and the volute 2 are an integrated structure, or the guide plate 1 and the volute 2 are a split structure.

[0108] The guide plate 1 is located between the indoor heat exchanger 3 and the front volute tongue 21 of the volute 2, so that the indoor heat exchanger 3 and the volute 2 are connected. In terms of assembly, the guide plate 1 can be assembled with the volute 2 first, or the guide plate 1 and the volute 2 are set as an integrated structure, and then the guide plate 1 and the volute 2 can be overlapped and matched with the indoor heat exchanger 3.

[0109] In some exemplary embodiments, the indoor unit of the air conditioner is a cabinet unit or a vertically mounted hanging unit, and the vertically mounted hanging unit can be hung on a wall. In the cabinet unit or the vertically mounted hanging unit, the axis of the volute 2 extends longitudinally.

[0110] In some exemplary embodiments, Figures 1 - 3As shown in the figure, the floor-standing air conditioner or the vertically installed wall-mounted air conditioner as a whole can be divided into two parts: an upper cabinet 51 and a lower cabinet 52. Among them, the main air duct part is inside the upper cabinet 51, and the fresh air part is inside the lower cabinet 52. The floor-standing air conditioner or the vertically installed wall-mounted air conditioner may include a front panel 53, a rear housing 54, and a top cover 55. The upper parts of the front panel 53 and the rear housing 54 and the top cover 55 cooperate to form the upper cabinet 51, and the lower parts of the front panel 53 and the rear housing 54 can form the lower cabinet 52. Structures such as a volute 2, an indoor heat exchanger 3, a blower wheel 61, a motor 62, and a heat exchanger bracket 7 can be provided inside the upper cabinet 51. The heat exchanger bracket 7 can support and fix the indoor heat exchanger 3. The blower wheel 61 can be arranged at the air inlet 25 of the volute, and the motor 62 can be connected to the blower wheel 61 and drive the blower wheel 61 to rotate.

[0111] An embodiment of the present application also provides an air conditioner, including the indoor unit of the air conditioner in any of the above embodiments.

[0112] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0113] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0114] In the present application, unless otherwise clearly specified and limited, the terms "install", "connect", "connection", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0115] In this application, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0116] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0117] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A flow deflector, characterized in that, The deflector is arranged between the indoor heat exchanger of the air conditioner indoor unit and the front volute tongue of the volute. The deflector includes a guiding surface which is arranged to guide the air flowing through the indoor heat exchanger to the volute air inlet of the volute, and the profile line of the guiding surface extending along the guiding direction is a spline curve.

2. The flow deflector according to claim 1, wherein, The spline curve has at least three control points, and a curve segment is formed between two adjacent control points, so that the spline curve includes a plurality of the curve segments; The plurality of curve segments include a first curve segment near the air outlet side of the guiding surface. The air outlet end of the first curve segment is close to the air outlet side of the guiding surface, and the incoming air end face of the front volute tongue facing the incoming air side is arranged to be flush and tangent to the air outlet end of the first curve segment.

3. The flow guide plate according to claim 2, wherein, The plurality of curve segments further include a second curve segment near the incoming air side of the guiding surface. The incoming air end of the second curve segment is close to the incoming air side of the guiding surface, and the first end face of the indoor heat exchanger close to the front volute tongue is arranged to be flush and tangent to the incoming air end of the second curve segment.

4. The flow deflector according to claim 3, wherein The plurality of curve segments further include at least one intermediate curve segment located between the first curve segment and the second curve segment.

5. The flow deflector according to claim 2, characterized in that, The plurality of curve segments are all concave curves, so that the guiding surface is a concave surface.

6. The flow deflector according to claim 2, wherein, The control points of the spline curve include a first control point and a second control point, and the first control point and the second control point are arranged to be in contact with the indoor heat exchanger and the front volute tongue respectively. The distance between the points on the spline curve and the connecting line formed by connecting the first control point and the second control point is not greater than 7 mm.

7. The flow deflector according to any one of claims 1 to 6, characterized in that, A support part is arranged on the incoming air side of the guiding surface, and the support part is arranged to support the indoor heat exchanger.

8. The flow deflector according to claim 7, characterized in that, The support part includes a support convex part which is provided with a step structure. The step structure includes a first limiting surface and a second limiting surface. The first limiting surface is arranged to support the first end face of the indoor heat exchanger close to the front volute tongue, and the second limiting surface is arranged to abut and limit the back air side of the indoor heat exchanger.

9. The flow deflector according to any one of claims 1 to 6, characterized in that The deflector includes a back air plate surface opposite to the guiding surface, and the back air plate surface is provided with a first limiting part which is arranged to cooperate with a second limiting part arranged on the outer wall surface of the volute to limit the deflector along the axial direction of the volute.

10. The flow deflector according to claim 9, wherein, The first limiting part includes a plurality of limiting grooves arranged in sequence along the length direction of the deflector.

11. The flow deflector according to any one of claims 1 to 6, characterized in that, The deflector is provided with a first fixing part which is arranged to be fixedly connected with the volute.

12. The flow deflector according to claim 11, wherein, The first fixing part includes a row of screw holes or multiple rows of screw holes arranged along the guiding direction of the deflector. Each row of screw holes includes a plurality of screw holes arranged in sequence along the length direction of the deflector.

13. An indoor unit of an air conditioner, characterized in that, Comprising: An indoor heat exchanger; A volute arranged on the air outlet side of the indoor heat exchanger; And The deflector according to any one of claims 1 to 12, which is arranged between the indoor heat exchanger and the front volute tongue of the volute and is fixedly connected with at least one of the indoor heat exchanger and the volute. The guiding surface of the deflector is arranged to guide the air flowing through the indoor heat exchanger to the volute air inlet of the volute.

14. The indoor unit of an air conditioner according to claim 13, characterized in that, The incoming air end face of the front volute tongue facing the incoming air side is a plane, and is flush and tangent to the outgoing air end of the first curve segment of the guiding surface; The indoor heat exchanger includes a first end face close to the front volute tongue, the first end face is a plane, and is flush and tangent to the incoming air end of the second curve segment of the guiding surface.

15. The indoor unit of an air conditioner according to claim 13, characterized in that, The indoor heat exchanger includes a first end face close to the front volute tongue and a leeward side face on the leeward side. The first end face of the indoor heat exchanger is supported on the first limiting surface of the guiding plate, and the leeward side face of the indoor heat exchanger abuts against and is limited by the second limiting surface of the guiding plate.

16. The indoor unit of an air conditioner according to claim 13, characterized in that, The volute includes a first volute side wall connected to the front volute tongue, and a second limiting portion is provided on the outer wall surface of the first volute side wall. The second limiting portion is cooperatively limited with the first limiting portion of the guiding plate.

17. The indoor unit of an air conditioner according to claim 16, characterized in that, The second limiting portion includes a plurality of reinforcing ribs connected between the outer wall surface of the first volute side wall and the outer wall surface of the front volute tongue. The plurality of reinforcing ribs are sequentially arranged along the axis direction of the volute, and the plurality of reinforcing ribs are respectively and cooperatively limited with a plurality of limiting grooves of the first limiting portion.

18. The indoor unit of an air conditioner according to claim 13, characterized in that, The volute includes a first volute side wall connected to the front volute tongue, and a second fixing portion is provided on the outer wall surface of the first volute side wall. The second fixing portion is fixedly connected to the first fixing portion of the guiding plate.

19. The indoor unit of an air conditioner according to claim 18, characterized in that, The second fixing portion includes a row of screw posts or multiple rows of screw posts. Each row of screw posts includes a plurality of screw posts sequentially arranged along the axis direction of the volute. The plurality of screw posts respectively correspond to a plurality of screw holes of the first fixing portion and are fixed by screws.

20. The indoor unit of an air conditioner according to claim 19, characterized in that, A support rib extending along the axis direction of the volute is provided on the outer wall surface of the first volute side wall. The support rib abuts against and is limited by the leeward plate surface of the guiding plate; A row of screw posts is arranged on the support rib; and / or, at least one row of screw posts is arranged at an interval from the support rib.

21. The indoor air conditioner according to claim 13, characterized in that, The volute includes a first volute side wall connected to the front volute tongue, and an installation cavity is formed among the front volute tongue, the first volute side wall and the guiding plate; The indoor unit of the air conditioner further includes an air purification module. The air purification module is installed in the installation cavity and penetrates through the first volute side wall to extend into the volute.

22. The indoor unit of an air conditioner according to claim 21, characterized in that, A wire passing buckle is arranged in the installation cavity. An end cover is provided at one axial end of the volute. The end cover is provided with a wire passing hole. The wire of the air purification module passes through the wire passing buckle and exits from the wire passing hole.

23. The indoor unit of the air conditioner according to claim 13, characterized in that, The guiding plate and the volute are of an integral structure, or the guiding plate and the volute are of a split structure.

24. The indoor air conditioner according to any one of claims 13 to 23, characterized in that, The indoor unit of the air conditioner is a floor-standing unit or a vertically arranged wall-mounted unit.

25. An air conditioner, characterized in that, An indoor unit of an air conditioner as claimed in any one of claims 13 to 24 is included.

Images