Guide plate, air conditioner indoor unit and air conditioner

Abstract

The invention 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] The present application relates to, but is not limited to, the technical field of air conditioners, in particular to a guide plate, an indoor unit of an air conditioner and an air conditioner. BACKGROUND

[0002] In the related art, there is an indoor unit of an air conditioner, which is provided with a guide member between a volute tongue of a volute and a heat exchanger (indoor heat exchanger), and the guide member is provided with a guide surface, which is a cylindrical surface. The purpose of providing the guide member is to improve the stability of airflow in an air inlet space formed between the heat exchanger and the fan, so as to avoid surge of the indoor unit of the air conditioner. However, vortex is generated when the airflow flows in the air inlet space, which affects the air volume. SUMMARY

[0003] The embodiment of the present application provides a guide plate, which is arranged between an indoor heat exchanger and a front volute tongue of a volute of an indoor unit of an air conditioner, and the guide plate comprises a guide surface, the guide surface is arranged to guide air flowing through the indoor heat exchanger to a volute air inlet of the volute, and a profile of the guide surface extending along a guide direction is a spline curve.

[0004] In some example embodiments, 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 comprises a plurality of curve segments.

[0005] The plurality of curve segments comprises a first curve segment close to an air outlet side of the guide surface, an air outlet end of the first curve segment is close to the air outlet side of the guide surface, and an air inlet end surface of the front volute tongue facing an air inlet side is arranged to be flush and tangent to the air outlet end of the first curve segment.

[0006] In some example embodiments, the plurality of curve segments further comprises a second curve segment close to an air inlet side of the guide surface, an air inlet end of the second curve segment is close to the air inlet side of the guide surface, and a first end surface of the indoor heat exchanger close to the front volute tongue is arranged to be flush and tangent to the air inlet end of the second curve segment.

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

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

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

[0010] In some example embodiments, the air inlet side of the flow guide surface is provided with a support portion arranged to support the indoor heat exchanger.

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

[0012] In some example embodiments, the flow guide plate includes a leeward plate surface opposite to the flow guide surface, and the leeward plate surface is provided with a first limiting portion arranged to cooperate with a second limiting portion arranged on the outer wall surface of the volute to limit the flow guide plate along the axis direction of the volute.

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

[0014] In some example embodiments, the flow guide plate is provided with a first fixing portion arranged to be fixedly connected with the volute.

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

[0016] The embodiments of the present application also provide an indoor unit of an air conditioner, which includes:

[0017] an indoor heat exchanger;

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

[0019] The flow guide plate of any one of the above embodiments 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, and the flow guide surface of the flow guide plate is arranged to guide the air flowing through the indoor heat exchanger to the volute air inlet of the volute.

[0020] The air inlet end surface of the front volute tongue towards the air inlet side is a plane and is flush and tangent to the air outlet end of the first curve segment of the flow guide surface.

[0021] The indoor heat exchanger comprises a first end face close to the front volute tongue, the first end face is a plane and flush and tangent to the air inlet end of the second curve segment of the guide flow face.

[0022] In some example embodiments, the volute comprises a first volute side wall connected with the front volute tongue, an outer wall surface of the first volute side wall is provided with a second limiting part, and the second limiting part cooperates with the first limiting part of the guide plate to limit.

[0023] In some example embodiments, the second limiting part comprises 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 correspond one-to-one to the plurality of limiting grooves of the first limiting part to limit.

[0024] In some example embodiments, the volute comprises a first volute side wall connected with the front volute tongue, an outer wall surface of the first volute side wall is provided with a second fixing part, and the second fixing part is fixedly connected with the first fixing part of the guide plate.

[0025] In some example embodiments, the second fixing part comprises one row of screw columns or multiple rows of screw columns, each row of screw columns comprises a plurality of screw columns sequentially arranged along the axis direction of the volute, and the plurality of screw columns correspond one-to-one to the plurality of screw holes of the first fixing part and are fixed by screws.

[0026] In some example 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 the leeward plate surface of the guide plate to limit;

[0027] One row of screw columns is arranged on the support rib; and / or, at least one row of screw columns is arranged at intervals from the support rib.

[0028] In some example embodiments, the indoor heat exchanger comprises a first end face close to the front volute tongue and a leeward side face located at the leeward side, the first end face of the indoor heat exchanger is supported on the first limiting face of the guide plate, and the leeward side face of the indoor heat exchanger abuts against the second limiting face of the guide plate to limit.

[0029] In some example embodiments, the volute comprises a first volute side wall connected with the front volute tongue, and a mounting cavity is formed between the front volute tongue, the first volute side wall and the guide plate;

[0030] The indoor unit of the air conditioner further comprises an air purification module, the air purification module is mounted to the mounting cavity and penetrates through the first volute side wall to extend into the volute.

[0031] In some example embodiments, the installation cavity is provided with a wire passing buckle, an axial end of the volute is provided with an end cover, the end cover is provided with a wire passing hole, and the wire of the air purification module passes through the wire passing buckle and passes out from the wire passing hole.

[0032] In some example embodiments, the flow guide plate is in an integral structure with the volute, or the flow guide plate is in a split structure with the volute.

[0033] In some example embodiments, the air conditioner indoor unit is a cabinet type air conditioner or a vertically arranged wall-mounted air conditioner.

[0034] The embodiments of the present application also provide an air conditioner, which comprises the air conditioner indoor unit according to any one of the above embodiments.

[0035] The flow guide plate provided by the embodiments of the present application can be arranged between the indoor heat exchanger and the front volute tongue of the volute of the air conditioner indoor unit, so as to guide the air flowing through the indoor heat exchanger to the volute inlet of the volute by the flow guide surface of the flow guide plate. The profile of the flow guide surface extending along the flow guide direction can be set as a spline curve, so that the flow guide surface is more smooth and has no abrupt change as a whole, and then the air flow flowing from the indoor heat exchanger to the volute inlet of the volute after the flow guide surface flows more smoothly, the flow resistance and the air inlet resistance of the volute inlet are reduced, and the air inlet amount is improved. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 A front view structural schematic diagram of an air conditioner indoor unit provided by some embodiments of the present application is shown in FIG. 1.

[0037] Figure 2 A front view structural schematic diagram of an air conditioner indoor unit provided by some embodiments of the present application is shown in FIG. 1. Figure 1 An exploded structural schematic diagram of the air conditioner indoor unit shown in FIG. 1 is shown in FIG. 2.

[0038] Figure 3 An exploded structural schematic diagram of the indoor heat exchanger, the volute, the flow guide plate and the fan assembly of the air conditioner indoor unit shown in FIG. 1 is shown in FIG. 3. Figure 1 A front view structural schematic diagram of the structure shown in FIG. 3 is shown in FIG. 4.

[0039] Figure 4 A front view structural schematic diagram of the structure shown in FIG. 3 is shown in FIG. 4. Figure 3 A sectional view structural schematic diagram of the structure shown in FIG. 3 along the A-A direction is shown in FIG. 5.

[0040] Figure 5 A sectional view structural schematic diagram of the structure shown in FIG. 3 along the B-B direction is shown in FIG. 6. Figure 4

[0041] Figure 6 An assembly schematic diagram of the structure shown in FIG. 3 is shown in FIG. 7. Figure 3

[0042] A sectional view structural schematic diagram of the structure shown in FIG. 3 along the B-B direction is shown in FIG. 6. Figure 7 Figure 6

[0043] ​​​Figure 8 is an enlarged schematic view of the C part structure of the air conditioner indoor unit shown in FIG. 1; Figure 7

[0044] Figure 9 is an enlarged schematic view of the C part structure of the air conditioner indoor unit shown in FIG. 1; Figure 1

[0045] Figure 10 is an enlarged schematic view of the C part structure of the air conditioner indoor unit shown in FIG. 1; Figure 1

[0046] Figure 11 is an enlarged schematic view of the C part structure of the air conditioner indoor unit shown in FIG. 1; Figure 10

[0047] Figure 12 is an enlarged schematic view of the C part structure of the air conditioner indoor unit shown in FIG. 1; Figure 1

[0048] Figure 13 is an enlarged schematic view of the C part structure of the air conditioner indoor unit shown in FIG. 1; Figure 12

[0049] Figure 14 is an enlarged schematic view of the C part structure of the air conditioner indoor unit shown in FIG. 1; Figure 12

[0050] Figure 15 is an enlarged schematic view of the C part structure of the air conditioner indoor unit shown in FIG. 1; Figure 12

[0051] Figure 16 is an enlarged schematic view of the C part structure of the air conditioner indoor unit shown in FIG. 1. Figure 12 In the drawings, the components represented by the respective reference numerals are listed as follows:

[0052] 1 - guide plate, 11 - guide surface, 12 - leeward plate surface, 13 - screw hole, 14 - support part, 141 - first limiting surface, 142 - second limiting surface;

[0053] 2 - volute, 21 - front volute tongue, 211 - incoming air end surface, 22 - first volute side wall, 221 - reinforcing rib, 222 - support rib, 223 - screw column, 224 - connecting rib, 23 - mounting cavity, 231 - wire passing buckle, 24 - end cover, 241 - wire passing hole, 25 - volute air inlet, 26 - screw;

[0054] 3 - indoor heat exchanger, 31 - first end surface, 32 - leeward side surface;

[0055] 4 - air purification module, 41 - wire;

[0056]

[0057] ​​​​​​​​​51-Upper housing, 52-Lower housing, 53-Front panel, 54-Rear housing, 55-Top cover, 61-Wind impeller, 62-Motor, 7-Heat exchanger bracket. Detailed Implementation

[0058] The principles and features of this application are described below with reference to the accompanying drawings. The examples given are only for explaining this application and are not intended to limit the scope of this application.

[0059] like Figures 1-16 As shown, this application embodiment provides a baffle plate 1, which can be used in the indoor unit of an air conditioner, and the baffle plate 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 baffle plate 1 includes a guide surface 11, which is configured to guide the air flowing through the indoor heat exchanger 3 to the volute inlet 25 of the volute 2, and the profile of the guide surface 11 extending along the guide direction is a spline curve L2 (e.g., Figure 9 (As shown).

[0061] The deflector 1 can be installed between the indoor heat exchanger 3 and the front volute tongue 21 of the volute 2 in the indoor unit of the air conditioner, so that the air flowing through the indoor heat exchanger 3 can be guided to the volute inlet 25 of the volute 2 by the deflector surface 11 of the deflector 1. The profile of the deflector surface 11 of the deflector 1 along the deflection direction (i.e. the direction in which the airflow 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 deflector surface 11 is smoother and without abrupt changes, thereby making the airflow from the indoor heat exchanger 3 to the volute inlet 25 of the volute 2 smoother, reducing the flow resistance and the air intake resistance of the volute inlet 25, which is conducive to increasing the air intake volume.

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

[0063] The profile of the guide surface 11 of the guide plate 1 extending along the guide direction can be set as a spline curve L2, and a plurality of curve segments are formed between adjacent two control points of the spline curve L2, and the plurality of curve segments are smoothly connected, so as to realize smooth transition and continuity between the plurality of curve segments. The curve segment close to the air outlet side of the guide surface 11 is a first curve segment P1P2. The front volute tongue 21 of the volute 2 has an air inlet end surface 211 facing the air inlet side, and the air inlet end surface 211 can be a plane, and the plane can be flush and tangent with the air outlet end of the first curve segment P1P2 (one end where the control point P1 is located), so as to smoothly guide the air flow from the air outlet side of the guide surface 11 to the volute air inlet 25 of the volute 2, so that the air flow is smoother, and the occurrence of air flow direction mutation, turbulence and the like is reduced, which is beneficial to reduce the air resistance and improve the air volume.

[0064] As shown in some example embodiments, Figure 9 The plurality of curve segments further include a second curve segment P3P4 close to the air inlet side of the guide surface 11, and the air inlet end (one end where the control point P4 is located) of the second curve segment P3P4 is close to the air inlet side of the guide surface 11, and the first end surface 31 of the indoor heat exchanger 3 close to the front volute tongue 21 is set to be flush and tangent with the air inlet end of the second curve segment P3P4.

[0065] The profile of the guide surface 11 of the guide plate 1 extending along the guide direction can be set as a spline curve L2, and a plurality of curve segments are formed between adjacent two control points of the spline curve L2, and the plurality of curve segments are smoothly connected, so as to realize smooth transition and continuity between the plurality of curve segments. The curve segment close to the air inlet side of the guide surface 11 is a first curve segment P1P2. The front volute tongue 21 of the volute 2 has an air inlet end surface 211 facing the air inlet side, and the air inlet end surface 211 can be a plane, and the plane can be flush and tangent with the air outlet end of the first curve segment P1P2 (one end where the control point P1 is located), so as to smoothly guide the air flow from the air outlet side of the guide surface 11 to the volute air inlet 25 of the volute 2, so that the air flow is smoother, and the occurrence of air flow direction mutation, turbulence and the like is reduced, which is beneficial to reduce the air resistance and improve the air volume.

[0066] As shown in some example embodiments, Figure 9 The plurality of curve segments further include at least one intermediate curve segment P2P3 between the first curve segment and the second curve segment. The plurality of 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 guide surface 11 is a concave surface.

[0067] The profile of the guide surface 11 of the guide plate 1 extending along the guide direction can be set as a spline curve L2, and 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 arranged 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 guide surface 11 can be flexibly adjusted, so as to adapt to different requirements.

[0068] Specifically, as shown in Figure 9 , the spline curve L2 can have four control points P1-P4, so that the spline curve L2 can include three curve segments: curve segment P1P2, curve segment P2P3 and curve segment P3P4, the first curve segment P1P2 and the second curve segment P3P4 can be tangent to the air inlet end face 211 of the front volute tongue 21 and the first end face 31 of the indoor heat exchanger 3 respectively, and the intermediate curve segment P2P3 can be as concave as possible (as shown in Figure 9 , curved downward), so that the air inlet space formed between the volute 2, the indoor heat exchanger 3 and the guide plate 1 is increased, 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 be adjusted according to actual needs.

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

[0071] As shown in Figure 9 , the spline curve L2 includes a first control point P4 and a second control point P1 in contact with the indoor heat exchanger 3 and the front volute tongue 21 respectively, a connecting line L1 connecting the first control point P4 and the second control point P1 (the connecting line L1 can also be regarded as a connecting line passing between adjacent ends of the first end face 31 of the indoor heat exchanger 3 and the air inlet end face 211 of the front volute tongue 21), and the distance S between a point on the spline curve L2 and the connecting line L1 (i.e. the length of the perpendicular line segment of the connecting line L1 passing through the point on the spline curve L2) is set to be not greater than 7mm.

[0072] Since each curve segment of the spline curve L2 is a concave curve, and the guide flow surface 11 is a concave surface, the spline curve L2 is arranged concavely relative to the connecting line L1. In addition, compared with the case where the guide flow surface is a circular arc surface, the profile of the guide flow surface 11 in the embodiment of the application is the spline curve L2, and the control points (such as the control points P2 and P3) of the spline curve L2 other than the first control point P4 and the second control point P1 can be arranged on the side of the circular arc line L2 away from the connecting line L1, so that the spline curve L2 is more concave than the circular arc line L2, so as to increase the air inlet space formed between the volute 2, the indoor heat exchanger 3 and the guide plate 1, and be more conducive to air inlet.

[0073] The distance S is set to be not greater than 7 mm, so as to avoid the problem that the airflow needs to be turned by a large angle during the process of flowing along the guide flow surface 11 when S is too large, and be conducive to improving the airflow.

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

[0075] In some example embodiments, the guide plate 1 includes a leeward plate surface 12 (as shown in Figure 8 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 arranged on the outer wall surface of the volute 2 to limit the guide plate 1 along the axial direction of the volute 2.

[0076] The length direction of the guide plate 1 can be parallel to the axial direction of the volute 2, and the length of the guide plate 1 can be substantially equal to the axial length of the volute 2. The leeward plate surface 12 of the guide 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 guide plate 1 along the axial direction of the volute 2, so as to prevent the guide plate 1 from moving.

[0077] In some example embodiments, the first limiting portion includes a plurality of limiting grooves arranged in sequence along the length direction of the guide plate 1.

[0078] The first limiting portion includes a plurality of limiting grooves arranged in sequence along the length direction of the guide plate 1, and the second limiting portion can include a plurality of reinforcing ribs 221 (as shown in Figure 8 and Figures 11-14 The plurality of reinforcing ribs 221 are arranged in sequence along the axial direction of the volute 2, and the plurality of reinforcing ribs 221 of the second limiting portion correspond to the plurality of limiting grooves of the first limiting portion one by one to limit, so as to limit the guide plate 1 along the axial direction of the volute 2.

[0079] Of course, the first limiting part can also be provided with a plurality of reinforcing ribs 221, and correspondingly, the second limiting part can be provided with a plurality of limiting grooves.

[0080] In some example embodiments, the guide plate 1 is provided with a first fixing part which is arranged to be fixedly connected with the volute 2.

[0081] The guide plate 1 is provided with a first fixing part, and the outer wall surface of the volute 2 can be provided with a second fixing part which is fixedly connected with the first fixing part so as to fix the guide plate 1 with the volute 2.

[0082] In some example embodiments, as shown in Figure 11 the first fixing part can include a row of screw holes or a plurality of rows of screw holes arranged along the guide direction of the guide plate 1, and each row of screw holes can include a plurality of screw holes 13 arranged in sequence along the length direction of the guide plate 1; correspondingly, as shown in Figures 11-14 the second fixing part can include a row of screw posts or a plurality of rows of screw posts, and 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 of the second fixing part correspond to the plurality of screw holes 13 of the first fixing part one by one and are fixed by the screw 26.

[0083] The guide plate 1 is provided with the screw hole 13, the outer wall surface of the volute 2 is provided with the screw post 223, and the screw 26 can pass through the screw hole 13 and be threadedly connected with the threaded hole of the screw post 223 to realize the screw 26 fixation of the guide plate 1 and the volute 2. Of course, the guide plate 1 and the volute 2 are not limited to be fixed by the screw 26, but can also be fixed by other ways (such as buckles, etc.).

[0084] In some example embodiments, as shown in Figure 8 the windward side of the guide surface 11 is provided with a support part 14 which is arranged to support the indoor heat exchanger 3.

[0085] The first end surface 31 of the indoor heat exchanger 3 can be lapped on the support part 14 of the guide plate 1, and the support part 14 can support and limit the indoor heat exchanger 3 to prevent the indoor heat exchanger 3 from being deformed and bent.

[0086] In some example embodiments, as shown in Figure 8 the support part 14 includes a support protrusion which is provided with a stepped structure including a first limiting surface 141 and a second limiting surface 142, the first limiting surface 141 is arranged to support the first end surface 31 of the indoor heat exchanger 3 close to the front volute tongue 21, and the second limiting surface 142 is arranged to abut and limit the leeward side surface 32 of the indoor heat exchanger 3.

[0087] The airflow guide surface 11 of the guide plate 1 has a supporting protrusion on the airflow side. This supporting protrusion protrudes from the airflow guide surface 11 and has a stepped structure. The indoor heat exchanger 3 is attached to the stepped structure, and the first limiting surface 141 of the stepped structure supports the first end face 31 of the indoor heat exchanger 3 near the front volute tongue 21. The second limiting surface 142 of the stepped structure is configured to abut and limit the airflow side 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, deformation and bending of the indoor heat exchanger 3 can be prevented.

[0088] This application also provides an indoor unit for an air conditioner, such as... Figures 1-16 As shown, the device includes an indoor heat exchanger 3, a volute 2, and a baffle 1 as described in any of the above embodiments. The volute 2 is disposed on the air outlet side of the indoor heat exchanger 3. The baffle 1 is disposed between the front volute tongue 21 of the indoor heat exchanger 3 and the volute 2, and is fixedly connected to at least one of the indoor heat exchanger 3 and the volute 2. The baffle 1's guiding surface 11 is configured to guide the air flowing through the indoor heat exchanger 3 to the volute inlet 25 of the volute 2.

[0089] In the indoor unit of this air conditioner, the deflector 1 is located before the evaporator and the volute 2. The air flowing through the indoor heat exchanger 3 can be guided by the deflector 1 to flow to the air inlet 25 of the volute 2. The guide surface 11 of the deflector 1 extends along the guide direction in the shape of a spline curve. The guide of the air by the deflector 1 helps to reduce flow resistance and increase the air intake volume.

[0090] In some exemplary embodiments, such as Figure 9 As shown, the air-facing end face 211 of the front volute 21 facing the air-facing side is a plane and is flush with and tangent to the air-outlet end of the first curved segment P1P2 of the guide surface 11; the indoor heat exchanger 3 includes a first end face 31 near the front volute 21, the first end face 31 is a plane and is flush with and tangent to the air-facing end of the second curved segment P3P4 of the guide surface 11.

[0091] The air inlet face 211 of the front volute 21 is flush with and tangent to the air outlet face of the first curved segment P1P2 of the guide surface 11, and the air inlet face 31 of the indoor heat exchanger 3 is flush with and tangent to the air inlet face of the second curved segment P3P4 of the guide surface 11. This facilitates smoother airflow, reduces sudden changes in airflow direction and turbulence, and helps to reduce wind resistance and increase air volume.

[0092] In some exemplary embodiments, such as Figure 8 , Figures 11-14As shown, the volute 2 includes a first volute side wall 22 connected with the front volute tongue 21, and an outer wall surface of the first volute side wall 22 is provided with a second limiting part which cooperates with the first limiting part of the guide vane 1 to limit the position. The second limiting part can 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, and the plurality of reinforcing ribs 221 are sequentially arranged along the axis direction of the volute 2, and the plurality of reinforcing ribs 221 correspond to the plurality of limiting grooves of the first limiting part one by one to limit the position.

[0093] 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 are provided with a plurality of reinforcing ribs 221 sequentially arranged along the axis direction of the volute 2, and the plurality of reinforcing ribs 221 not only can strengthen the structural strength of the volute 2, but also can correspond to the plurality of limiting grooves of the first limiting part of the guide vane 1 one by one to limit the position of the guide vane 1 along the axis direction of the volute 2, so as to prevent the guide vane 1 from moving.

[0094] In some example embodiments, the outer wall surface of the first volute side wall 22 of the volute 2 is provided with a second fixing part which is fixedly connected with the first fixing part of the guide vane 1. As shown, Figures 11-14 the second fixing part includes one row of screw columns or multiple rows of screw columns, each row of screw columns includes a plurality of screw columns 223 sequentially arranged along the axis direction of the volute 2, and the plurality of screw columns 223 correspond to the plurality of screw holes 13 of the first fixing part one by one and are fixed by the screw 26.

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

[0096] In some example embodiments, as shown, Figures 11-14 the outer wall surface of the first volute side wall 22 is provided with a support rib 222 extending along the axis direction of the volute 2, and the support rib 222 abuts against the leeward plate surface 12 of the guide vane 1 to limit the position, so as to prevent the guide vane 1 from deforming. As shown, Figure 13 the side wall surface of the support rib 222 can be provided with a plurality of connecting ribs 224 for strengthening the support rib 222, so as to further enhance the support effect on the guide vane 1.

[0097] In some example embodiments, at least one row of screw columns provided on the outer wall surface of the first volute side wall 22 of the volute 2, wherein one row of screw columns can be arranged on the support rib 222; and / or, at least one row of screw columns can be arranged at intervals from the support rib 222. As shown, Figures 11-14As shown, the outer wall surface of the first volute sidewall 22 of the volute 2 is provided with two rows of screw posts for fixing the guide plate 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 sidewall 22 and is spaced from the support rib 222.

[0098] In some example embodiments, as shown in Figure 8 As shown, the indoor heat exchanger 3 includes a first end surface 31 close to the front volute tongue 21 and a leeward side surface 32 located at the leeward side, the first end surface 31 of the indoor heat exchanger 3 is supported on the first limiting surface 141 of the guide plate 1, and the leeward side surface 32 of the indoor heat exchanger 3 abuts against the second limiting surface 142 of the guide plate 1.

[0099] As shown in Figure 8 As shown, one end of the guide plate 1 is fixedly connected with the volute 2, and the other end is overlapped with the indoor heat exchanger 3, and the first end surface 31 of the indoor heat exchanger 3 is supported on the first limiting surface 141 on the support protrusion of the guide plate 1, and the leeward side surface 32 of the indoor heat exchanger 3 abuts against the second limiting surface 142 on the support protrusion of the guide plate 1, so as to support the indoor heat exchanger 3 by the guide plate 1 and prevent the indoor heat exchanger 3 from deforming.

[0100] In some example embodiments, as shown in Figure 8 and Figures 10-14 As shown, the front volute tongue 21, the first volute sidewall 22 of the volute 2 and the guide plate 1 form an installation cavity 23; the air conditioner indoor unit further comprises an air purification module 4, the air purification module 4 is installed to the installation cavity 23 and penetrates through the first volute sidewall 22 to extend into the volute 2. The air purification module 4 can be an ion generator (such as a negative ion generator) or other module with air purification function.

[0101] The front volute tongue 21, the first volute sidewall 22 of the volute 2 and the guide plate 1 form an installation cavity 23, the guide plate 1 can be isolated from the air inlet space formed between the volute 2, the indoor heat exchanger 3 and the guide plate 1 by the installation cavity 23, 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 penetrate through the first volute sidewall 22 and extend into the volute 2, so that the air purification module 4 purifies the air in the volute 2.

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

[0103] In some example embodiments, as shown in Figure 8 and Figures 10-16 As shown, the installation cavity 23 is provided with a wire passing buckle 231, 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 penetrates through the wire passing buckle 231 and passes out from the wire passing hole 241.

[0104] The mounting cavity 23 formed between the front volute tongue 21, the first volute sidewall 22 of the volute 2 and the guide plate 1 can be provided with a plurality of wire passing buckles 231, which can be sequentially arranged along the axial direction of the volute 2; the air purification module 4 can also be provided with a plurality of air purification modules, which are sequentially arranged along the axial direction of the volute 2. The wires 41 connected to the air purification module 4 can pass through the wire passing buckles 231 and can pass out of the wire passing hole 241 on the end cover 24 at one axial end of the volute 2.

[0105] The mounting cavity 23 is isolated from the air inlet space formed between the volute 2, the indoor heat exchanger 3 and the guide plate 1, and can provide independent wire routing space for the air purification module 4, so as to ensure that the wires 41 of the air purification module 4 are not sucked into the air inlet space and wound into the fan wheel, causing the fan wheel to be stuck, the fan wheel to be damaged, etc.

[0106] The mounting cavity 23 is provided with wire passing buckles 231, which can pre-fix the wires 41. After the wires 41 are pre-fixed, the wires 41 can be led out of 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 example embodiments, the guide plate 1 and the volute 2 are of an integrated structure, or the guide plate 1 and the volute 2 are of a split structure.

[0108] The guide plate 1 is interposed between the indoor heat exchanger 3 and the front volute tongue 21 of the volute 2, so as to associate the indoor heat exchanger 3 and the volute 2. In assembly, the guide plate 1 can be assembled with the volute 2 first, or the guide plate 1 and the volute 2 can be provided as an integrated structure, and then the lapping cooperation with the indoor heat exchanger 3 can be achieved.

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

[0110] In some example embodiments, as shown in FIG. 1, the air conditioner indoor unit is a cabinet machine or a vertically arranged hanging machine, which can be hung on a wall. In the cabinet machine or the vertically arranged hanging machine, the axis of the volute 2 extends longitudinally. Figures 1-3As shown, the cabinet machine or the longitudinally arranged hanging machine can be divided into two parts of an upper box body 51 and a lower box body 52, wherein the main air duct part is in the upper box body 51, and the fresh air part is in the lower box body 52. The cabinet machine or the longitudinally arranged hanging machine can include a front panel 53, a rear shell 54, and a top cover 55, the upper parts of the front panel 53 and the rear shell 54 and the top cover 55 can cooperate to form the upper box body 51, and the lower parts of the front panel 53 and the rear shell 54 can form the lower box body 52. The upper box body 51 can be provided with a volute 2, an indoor heat exchanger 3, a fan wheel 61, a motor 62, a heat exchanger support 7, and the like, the heat exchanger support 7 can support and fix the indoor heat exchanger 3, the fan wheel 61 can be arranged at the volute air inlet 25, and the motor 62 can be connected with the fan wheel 61 and drive the fan wheel 61 to rotate.

[0111] The embodiment of the present application also provides an air conditioner, which comprises 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 orientation or positional relationship indicated by 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" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

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

[0114] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0115] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can be 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 "over", "above" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0116] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means 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 the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0117] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

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

2. The guide vane according to claim 1, characterized in that, 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 multiple curve segments; The plurality of curved segments include a first curved segment near the air outlet side of the guide surface, the air outlet end of the first curved segment being near the air outlet side of the guide surface, and the air inlet end face of the front volute facing the air inlet side being configured to be flush with and tangent to the air outlet end of the first curved segment.

3. The guide vane according to claim 2, characterized in that, The plurality of the curved segments also include a second curved segment near the airflow side of the guide surface, the airflow end of the second curved segment being near the airflow side of the guide surface, and the first end face of the indoor heat exchanger near the front volute being configured to be flush with and tangent to the airflow end of the second curved segment.

4. The guide vane according to claim 3, characterized in that, The plurality of curve segments also includes at least one intermediate curve segment located between the first curve segment and the second curve segment.

5. The guide vane according to claim 2, characterized in that, Multiple of the aforementioned curve segments are concave curves, so that the guiding surface is concave.

6. The guide vane according to claim 2, characterized in that, 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 configured to contact the indoor heat exchanger and the front volute, respectively. The distance between a point on the spline curve and the connecting line formed by the first control point and the second control point is no greater than 7 mm.

7. The guide vane according to any one of claims 1 to 6, characterized in that, The airflow guide surface has a support portion on the airflow side, and the support portion is configured to support the indoor heat exchanger.

8. The guide vane according to claim 7, characterized in that, The support portion includes a support protrusion, which has a stepped structure. The stepped structure includes a first limiting surface and a second limiting surface. The first limiting surface is configured to support the first end face of the indoor heat exchanger near the front volute, and the second limiting surface is configured to abut and limit the leeward side of the indoor heat exchanger.

9. The guide vane according to any one of claims 1 to 6, characterized in that, The guide plate includes a leeward plate surface opposite to the guide surface. The leeward plate surface is provided with a first limiting part, which is configured to cooperate with a second limiting part provided on the outer wall surface of the volute to limit the guide plate along the axial direction of the volute.

10. The guide vane according to claim 9, characterized in that, The first limiting part includes a plurality of limiting grooves arranged sequentially along the length direction of the guide plate.

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

12. The guide vane according to claim 11, characterized in that, The first fixing part includes a row of screw holes or multiple rows of screw holes arranged along the flow direction of the guide plate, and each row of screw holes includes multiple screw holes arranged sequentially along the length direction of the guide plate.

13. An indoor unit of an air conditioner, characterized in that, include: Indoor heat exchanger; A volute is disposed on the air outlet side of the indoor heat exchanger; and The baffle plate according to any one of claims 1 to 12 is disposed between the front volute tongue of the indoor heat exchanger and the volute, and is fixedly connected to at least one of the indoor heat exchanger and the volute, wherein the baffle plate's guiding surface is configured to guide the air flowing through the indoor heat exchanger to the volute air inlet of the volute.

14. The indoor unit of the air conditioner according to claim 13, characterized in that, The air-facing end face of the front volute facing the air-facing side is a plane, and is flush with and tangent to the air-out end of the first curved segment of the guide surface. The indoor heat exchanger includes a first end face near the front volute, the first end face being a plane and flush with and tangent to the airflow end of the second curved segment of the guide surface.

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

16. The indoor unit of the air conditioner according to claim 13, characterized in that, The volute includes a first volute sidewall connected to the front volute tongue. The outer wall surface of the first volute sidewall is provided with a second limiting part, which cooperates with the first limiting part of the guide plate to limit movement.

17. The indoor unit of the air conditioner according to claim 16, characterized in that, The second limiting part includes a plurality of reinforcing ribs connected between the outer wall surface of the first volute sidewall and the outer wall surface of the front volute tongue. The plurality of reinforcing ribs are arranged sequentially along the axial direction of the volute, and the plurality of reinforcing ribs correspond one-to-one with the plurality of limiting grooves of the first limiting part for limiting.

18. The indoor unit of the air conditioner according to claim 13, characterized in that, The volute includes a first volute sidewall connected to the front volute tongue, and the outer wall surface of the first volute sidewall is provided with a second fixing part, which is fixedly connected to the first fixing part of the guide plate.

19. The indoor unit of the air conditioner according to claim 18, characterized in that, The second fixing part includes one or more rows of screw posts. Each row of screw posts includes multiple screw posts arranged sequentially along the axial direction of the volute. The multiple screw posts correspond one-to-one with the multiple screw holes of the first fixing part and are fixed by screws.

20. The indoor unit of the air conditioner according to claim 19, characterized in that, The outer wall surface of the first volute sidewall is provided with a support rib extending along the axial direction of the volute, and the support rib abuts against and limits the leeward side surface of the guide plate. A row of screw posts is disposed on the support rib; and / or, at least one row of screw posts is disposed at intervals from the support rib.

21. The indoor unit of the air conditioner according to claim 13, characterized in that, The volute includes a first volute sidewall connected to the front volute tongue, and an installation cavity is formed between the front volute tongue, the first volute sidewall, and the guide plate. The indoor unit of the air conditioner also includes an air purification module, which is installed in the mounting cavity and extends into the volute by passing through the side wall of the first volute.

22. The indoor unit of the air conditioner according to claim 21, characterized in that, The mounting cavity is provided with a wire-passing buckle, and one axial end of the volute is provided with an end cap. The end cap is provided with a wire-passing hole, and 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 guide plate and the volute are either an integral structure or separate structures.

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

25. An air conditioner, characterized in that, The indoor unit of the air conditioner includes any one of claims 13 to 24.

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