Fixed seat and indoor unit

Abstract

The application provides a fixing seat and an indoor unit, and relates to the technical field of air conditioners. The fixing seat comprises a seat body, the seat body is provided with a matching hole and an arc-shaped limiting area, the arc-shaped limiting area is provided with a plurality of first limiting parts for limiting the air guide angle of an air guide blade, the plurality of first limiting parts are arranged at intervals along the arc-shaped extension direction of the arc-shaped limiting area, and the first limiting part is one of a limiting groove and a limiting head; when the seat body is connected to the base, the matching hole corresponds to the mounting hole of the base, the projection of the mounting hole along its axial direction to the plane where the matching hole is located is a first projection, the first projection is located in the contour corresponding to the axial through hole of the matching hole, and the arc-shaped extension direction of the arc-shaped limiting area is consistent with the circumferential direction of the mounting hole. The indoor unit comprises a base, an air guide blade and the fixing seat. The arrangement of the fixing seat can effectively reduce the maintenance cost of the indoor unit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to a fixing seat and an indoor unit. BACKGROUND

[0002] Air conditioners are widely used for indoor temperature adjustment, wherein the indoor unit of the air conditioner is generally provided with a guide vane capable of manually adjusting a guide angle, the guide vane is rotatably installed on a base of the indoor unit, and the base can limit the position of the guide vane after adjusting the guide angle, so as to ensure the stability of the guide angle of the guide vane; however, the guide vane will cause abrasion to the base during rotation, which will weaken or even lose the limiting effect of the base on the guide vane, accordingly, the guide angle adjustment stability of the guide vane is poor or even invalid, and the user needs to replace the entire base to maintain the normal use of the guide vane, which results in high maintenance cost of the indoor unit in later period. SUMMARY

[0003] The present application relates to the technical field of air conditioners, in particular to a fixing seat and an indoor unit.

[0004] To solve the above problems, the present application provides a fixing seat for connecting with a base of an indoor unit and cooperating with a guide vane of the indoor unit to adjust an angle, the fixing seat comprises a seat body, the seat body is provided with a cooperation hole and an arc-shaped limiting area, the arc-shaped limiting area is provided with a plurality of first limiting parts for limiting a guide angle of the guide vane, the plurality of first limiting parts are arranged at intervals along an arc-shaped extension direction of the arc-shaped limiting area, and the first limiting part is one of a limiting groove and a limiting head; when the seat body is connected to the base, the cooperation hole corresponds to a mounting hole of the base, the mounting hole has a first projection along an axial direction of the mounting hole to the projection of the plane where the cooperation hole is located, the first projection is located within the outline corresponding to the axial through hole of the cooperation hole, and the arc-shaped extension direction of the arc-shaped limiting area is consistent with the circumferential direction of the mounting hole.

[0005] The fixing seat provided by the present application can be detachably connected to the base as a separate piece, after a period of use, only the worn fixing seat can be replaced, so as to ensure the effective limiting of the first limiting part on the second limiting part in the fixing seat, accordingly, the stability of the guide angle of the guide vane is ensured, and the maintenance cost of the indoor unit in later period can be effectively reduced. In addition, compared with the cooperation and limiting of the guide vane and the base in the prior art, in order to prolong the service life of the base, the entire base is made of wear-resistant material, which consumes high material cost, in the present embodiment, only the fixing seat can be made of wear-resistant material, and the base can be made of other materials with lower cost, on the basis of prolonging the service life of the fixing seat in the circumferential direction of the shaft, the production cost of the indoor unit is effectively reduced.

[0006] Optionally, the hole body part of the matching hole is different from the axial through hole body, and is an axial interference hole body, a hole edge of the axial interference hole body extends inward to form an arc-shaped skirt, and an arc-shaped end face of the arc-shaped skirt in one of axial directions serves as the arc-shaped limiting area, or an arc-shaped inner side wall of the arc-shaped skirt serves as the arc-shaped limiting area.

[0007] Optionally, the hole body part of the matching hole is different from the axial through hole body, and is an axial interference hole body, a hole edge of the axial interference hole body extends inward to form an arc-shaped skirt, and an arc-shaped end face of the arc-shaped skirt in one of axial directions serves as the arc-shaped limiting area; when the seat body is connected to the base, the arc-shaped inner side wall of the arc-shaped skirt is coplanar with a hole inner wall of a corresponding area of the mounting hole. The arc-shaped inner side wall can limit the radial movement of the rotating shaft and guide and limit the circumferential rotation of the rotating shaft, thereby improving the circumferential rotation stability of the rotating shaft.

[0008] Optionally, the hole edge of the axial interference hole body extends outward to form an arc-shaped support table, and the arc-shaped skirt is arranged at an inner edge of one end of the arc-shaped support table away from the axial interference hole body. After the arc-shaped support table is arranged, the distance between the seat body and the base is increased, that is, the connecting space between the seat body and the base is increased, and a screw column or other connecting structure can be arranged on the wall surface of the base facing the seat body, thereby reducing the damage to the strength and sealing performance of the base caused by the connecting operation such as hole opening of the base.

[0009] Optionally, the hole edge of the axial through hole body extends to the side where the arc-shaped support table is located to form an arc-shaped reinforcing table. The arc-shaped reinforcing table can effectively strengthen the strength of the edge area of the matching hole, and correspondingly improve the shape accuracy of the matching hole.

[0010] Optionally, the number of the first limiting parts is odd, and the first limiting part located at the middle position corresponds to the middle position of the air guide angle of the air guide blade. When the air guide blade is rotated to the position where the second limiting part cooperates with the first limiting part at the middle position, the air guide angle of the air guide blade is at the middle position, and the cold and hot air of the indoor unit can be blown to the main temperature adjusting area, thereby improving the temperature adjusting effect of the indoor unit.

[0011] Optionally, the seat body is provided with a first positioning part for cooperating with the base to be positioned. When the fixed seat is installed, the position of the seat body relative to the base can be preliminarily positioned through the cooperation of the second positioning part and the first positioning part, and then connected, thereby improving the installation convenience and position accuracy of the fixed seat.

[0012] The application further provides an indoor unit, comprising a base, a guide vane and the fixing seat, the base is provided with a mounting hole, and the fixing seat is detachably connected to the base; the guide vane comprises a vane and a rotating shaft, an axial limiting table and a connecting boss are arranged on the shaft side wall of the rotating shaft, the connecting boss is provided with a second limiting part, and the second limiting part is the other one of a limiting groove and a limiting head; the rotating shaft is inserted into the mounting hole, the first axial limiting area of the axial limiting table abuts against the base, the second limiting part is matched and inserted with the first limiting part, the second axial limiting area of the connecting boss or the second limiting part abuts against the base or the fixing seat, and the first axial limiting area and the second axial limiting area are arranged towards or away from each other. After the indoor unit is used for a period of time, only the worn fixing seat can be replaced, so that the effective limiting of the first limiting part on the second limiting part in the fixing seat is ensured, the stability of the guide angle of the guide vane is ensured accordingly, and the later maintenance cost of the indoor unit can be effectively reduced.

[0013] Optionally, the axial limiting table is an annular table surrounding the rotating shaft, and a plurality of convex points abutting against the base are arranged on one side annular end face of the axial limiting table, and the plurality of convex points are arranged at intervals along the circumferential direction of the axial limiting table. The convex points can improve the rotation smoothness of the guide vane on the basis of ensuring the axial support and limiting of the rotating shaft, and reduce the wear of the base and the noise pollution generated in the rotation process.

[0014] Optionally, an arc-shaped convex rib is arranged around the hole edge of the mounting hole in the region different from the arc-shaped limiting area, and the arc-shaped convex rib and the axial limiting table are located on both sides of the mounting hole. The arc-shaped convex rib can improve the strength of the edge of the mounting hole, and in addition, the inner side wall of the arc-shaped convex rib can cooperate with the limiting of the rotating shaft, so as to improve the cooperation stability of the rotating shaft and the mounting hole. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0016] Figure 1 The schematic diagram of the indoor unit provided by the application is shown in the figure;

[0017] Figure 2 The Figure 1 The local enlarged view of A in the figure;

[0018] Figure 3The first view angle partial sectional view schematic diagram of the air guiding blade and the fixed seat cooperation connection in the indoor unit provided by the present application is shown in the following figure.

[0019] Figure 4 For Figure 3 The second view angle partial sectional view schematic diagram of the air guiding blade and the fixed seat cooperation connection in the indoor unit provided by the present application is shown in the following figure.

[0020] Figure 5 The partial schematic diagram of the fixed seat connection in the indoor unit provided by the present application is shown in the following figure.

[0021] Figure 6 The first view angle partial schematic diagram of the base in the indoor unit provided by the present application is shown in the following figure.

[0022] Figure 7 The second view angle partial schematic diagram of the base in the indoor unit provided by the present application is shown in the following figure.

[0023] Figure 8 The first view angle schematic diagram of the fixed seat provided by the present application is shown in the following figure.

[0024] Figure 9 The second view angle schematic diagram of the fixed seat provided by the present application is shown in the following figure.

[0025] Figure 10 The schematic diagram of the air guiding blade in the indoor unit provided by the present application is shown in the following figure.

[0026] Figure 11 The partial sectional view schematic diagram of the air guiding blade and the fixed seat cooperation connection in the indoor unit provided by the present application is shown in the following figure.

[0027] Figure 12 The partial sectional view schematic diagram of the air guiding blade and the fixed seat cooperation connection in the indoor unit provided by the present application is shown in the following figure.

[0028] Figure 13 The partial sectional view schematic diagram of the air guiding blade and the fixed seat cooperation connection in the indoor unit provided by the present application is shown in the following figure.

[0029] Figure 14 The partial sectional view schematic diagram of the air guiding blade and the fixed seat cooperation connection in the indoor unit provided by the present application is shown in the following figure.

[0030] Explanation of reference signs:

[0031] 10 - fixed seat; 20 - base; 21 - mounting hole; 22 - notch; 23 - arc-shaped convex rib; 24 - screw column; 25 - second positioning part; 30 - air guide blade; 31 - blade; 32 - rotating shaft; 33 - axial limiting platform; 34 - connecting boss; 35 - second limiting part; 36 - convex point; 100 - seat body; 110 - fitting hole; 111 - axial through hole body; 112 - axial interference hole body; 120 - arc-shaped limiting area; 121 - first limiting part; 130 - arc-shaped skirt; 140 - arc-shaped supporting platform; 150 - arc-shaped reinforcing platform; 160 - first positioning part; 170 - connecting hole. DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0033] The present embodiment provides a fixed seat 10 for connecting with a base 20 of an indoor unit and cooperating with an air guide blade 30 of the indoor unit to adjust the angle, as shown in Figure 8 and Figure 9 The fixed seat 10 includes a seat body 100, the seat body 100 is provided with a fitting hole 110 and an arc-shaped limiting area 120, the arc-shaped limiting area 120 is provided with a plurality of first limiting parts 121 for limiting the air guide angle of the air guide blade 30, the plurality of first limiting parts 121 are arranged at intervals along the arc-shaped extension direction of the arc-shaped limiting area 120, and the first limiting part 121 is one of a limiting groove and a limiting head; when the seat body 100 is connected to the base 20, the fitting hole 110 corresponds to the mounting hole 21 of the base 20, and the mounting hole 21 projects onto the plane of the fitting hole 110 along the axial direction to form a first projection, the first projection is located within the contour corresponding to the axial through hole body 111 in the fitting hole 110, and the arc-shaped extension direction of the arc-shaped limiting area is consistent with the circumferential direction of the mounting hole 21.

[0034] The present embodiment also provides an indoor unit, as shown in Figures 1-3 which includes the base 20, the air guide blade 30 and the above-mentioned fixed seat 10, the base 20 is provided with the mounting hole 21, and the fixed seat 10 is detachably connected to the base 20; the air guide blade 30 includes the blade 31 and the rotating shaft 32, the shaft side wall of the rotating shaft 32 is provided with the axial limiting platform 33 and the connecting boss 34, the connecting boss 34 is provided with the second limiting part 35, and the second limiting part 35 is the other of the limiting groove and the limiting head; the rotating shaft 32 is inserted into the mounting hole 21, the first axial limiting area of the axial limiting platform 33 abuts against the base 20, the second limiting part 35 is cooperatively inserted with the first limiting part 121, the second axial limiting area of the connecting boss 34 or the second limiting part 35 abuts against the base 20 or the fixed seat 10, and the first axial limiting area and the second axial limiting area are arranged in a facing or opposite manner.

[0035] The fixed seat 10 and the indoor unit provided by the embodiment, wherein the fixed seat 10 comprises a seat body 100 as a base, the seat body 100 is provided with a matching hole 110 for the rotating shaft 32 of the air guide blade 30 to pass through, and a first limiting part 121 for limiting the adjusting angle of the air guide blade 30; wherein the indoor unit comprises the air guide blade 30 for adjusting the air direction, the fixed seat 10 and the base 20 as the installation base of the air guide blade 30 and the fixed seat 10.

[0036] First of all, it needs to be pointed out that the "axial through hole body 111" in the text refers to the hole body part in the axial direction of the matching hole 110, which is not interfered by any structure of the fixed seat 10. Since the projection of the mounting hole 21 along its axial direction to the plane where the matching hole 110 is located is located in the contour corresponding to the axial through hole body 111, the rotating shaft 32 is not interfered by the fixed seat 10 when it is inserted into the mounting hole 21 along the axial direction and extends into the axial through hole body 111, thereby ensuring the smooth installation of the rotating shaft 32. In use, the fixed seat 10 is detachably fixed to the base 20, the rotating shaft 32 of the air guide blade 30 is inserted into the mounting hole 21 of the base 20 and extends into the axial through hole body 111 of the matching hole 110, and the axial limiting table 33 of the air guide blade 30 abuts against the base 20 to limit the axial movement of the rotating shaft 32 in the first direction, wherein the abutting limiting area between the axial limiting table 33 and the base 20 serves as the first axial limiting area; along the axial direction of the rotating shaft 32, the abutting limiting area between the connecting boss 34 or the second limiting part 35 and the base 20 or the fixed seat 10 serves as the second axial limiting area, and the second axial limiting area is arranged opposite to or away from the first axial limiting area, so that the second axial limiting area and the first axial limiting area are subjected to axial limiting forces in opposite directions of the base 20 or the fixed seat 10, thereby limiting the axial movement of the rotating shaft 32 in the second direction, and the rotating shaft 32 can be subjected to axial limiting forces in opposite directions along its axial direction, thereby reducing the axial movement of the rotating shaft 32 and improving the stability of the air guide blade 30 installed on the base 20 and the fixed seat 10, and accordingly ensuring the cooperation and limiting of the first limiting part 121 and the second limiting part 35.

[0037] Initially, the second limiting part 35 is cooperatively inserted with one of the first limiting parts 121, that is, the limiting head is cooperatively inserted with the limiting groove, and the air guide blade 30 is located at a corresponding air guide angle; when it is necessary to adjust the air guide angle of the air guide blade 30, the rotating shaft 32 is rotated circumferentially, the second limiting part 35 is synchronously rotated circumferentially with the rotating shaft 32, the second limiting part 35 is separated from the initially cooperated first limiting part 121 and is cooperatively inserted with another first limiting part 121, thereby adjusting the air guide blade 30 to a corresponding air guide angle, and after the adjustment is completed, the other first limiting part 121 limits the second limiting part 35 circumferentially, thereby limiting the air guide blade 30 circumferentially and stabilizing it at the air guide angle.

[0038] Wherein, the fixed seat 10 is detachably connected to the base 20 as an independent piece, when the angle of the guide vane 30 is adjusted, the second limiting part 35 of the guide vane 30 and the first limiting part 121 of the fixed seat 10 are extruded and worn, on the basis of realizing the angle adjustment and angle limiting of the guide vane 30, the wear to the base 20 can be effectively reduced; after a period of use, only the fixed seat 10 that is worn can be replaced, thereby ensuring the effective limiting of the first limiting part 121 in the fixed seat 10 to the second limiting part 35, correspondingly ensuring the stability of the guide angle of the guide vane 30, and effectively reducing the later maintenance cost of the indoor unit. In addition, compared with the prior art that the guide vane 30 and the base 20 are matched and limited, in order to prolong the service life of the base 20, the entire base 20 is made of wear-resistant material, which consumes higher material cost, in the embodiment, only the fixed seat 10 can be made of wear-resistant material, and the base 20 can be made of other materials with lower cost, on the basis of prolonging the service life of the fixed seat 10 to limit the shaft 32 in the circumferential direction, the production cost of the indoor unit is effectively reduced. Specifically, the base 20 can be made of PP material, and the fixed seat 10 can be made of POM, ABS or HIPS material with higher wear resistance.

[0039] Alternatively, in the embodiment, the hole body part of the cooperation hole 110 other than the axial through hole body 111 is an axial interference hole body 112, the hole edge of the axial interference hole body 112 extends inward to form an arc-shaped skirt 130, one of the arc-shaped end faces of the arc-shaped skirt 130 in the axial direction serves as an arc-shaped limiting area 120, or the arc-shaped inner side wall of the arc-shaped skirt 130 serves as an arc-shaped limiting area 120. Here is a specific setting form of the arc-shaped limiting area 120 in the seat body 100, specifically, as shown in Figure 9 The cooperation hole 110 can be a circular hole coaxial with the mounting hole 21, the hole body of the cooperation hole 110 provided with the arc-shaped skirt 130 is an axial interference hole body 112, and the remaining hole body of the cooperation hole 110 is an axial through hole body 111. Wherein, when the arc-shaped end face of the arc-shaped skirt 130 serves as the arc-shaped limiting area 120, the second limiting part 35 is correspondingly located on the outer wall of the connecting boss 34 opposite to the arc-shaped limiting area 120; when the arc-shaped inner side wall of the arc-shaped skirt 130 serves as the arc-shaped limiting area 120, the second limiting part 35 is correspondingly located on the outer side wall of the connecting boss 34. Of course, in some embodiments, the cooperation hole 110 can only include the axial through hole body 111, and the arc-shaped limiting area 120 can be arranged in the area of the base 20 other than the cooperation hole 110 or the inner wall of the cooperation hole 110.

[0040] Specifically, the guide vane 30 and the fixed seat 10 are in the first form as shown in Figure 10 and Figure 8 The cooperation of the two is as shown in Figure 3 and Figure 4 as shown,Figure 3 and Figure 4 As shown in the middle view, in the air guide blade 30, the axial limiting platform 33 is located above the connecting boss 34, and the second limiting part 35 adopts a limiting head, which is located on the top surface of the connecting boss 34; in the fixed seat 10, the arc-shaped lower end surface of the arc-shaped skirt 130 is used as the arc-shaped limiting area 120, and the first limiting part 121 adopts a limiting groove which is not through from top to bottom, and a plurality of limiting grooves are arranged on the arc-shaped lower end surface. In operation, the axial limiting platform 33 of the air guide blade 30 abuts against the upper end surface of the mounting hole 21, that is, the bottom surface of the axial limiting platform 33 is used as the first axial limiting area; the limiting head is inserted into one of the limiting grooves upward, and the top of the limiting head abuts against the groove bottom of the limiting groove, so that the limiting head cannot rotate along the circumference of the rotating shaft 32 relative to the limiting groove, nor can it move upward relative to the limiting groove, that is, the cooperation of the limiting head and the limiting groove not only limits the rotating shaft 32 in the circumferential direction, but also limits the rotating shaft 32 in the axial direction by the top surface of the limiting head. The first axial limiting area faces downward, and the second axial limiting area faces upward, and they are arranged oppositely, so that the upper end surface of the mounting hole 21 limits the downward movement of the rotating shaft 32 through the first axial limiting area, and the groove bottom of the limiting groove limits the upward movement of the rotating shaft 32 through the second axial limiting area, thereby limiting the axial movement of the rotating shaft 32. When the angle of the air guide blade 30 needs to be adjusted, the rotating shaft 32 can be forced to rotate circumferentially, and the limiting head is pressed to deform the limiting groove and the arc-shaped skirt 130 until the limiting head is extruded out of the original limiting groove and extruded into another limiting groove, and the limiting groove and the arc-shaped skirt 130 return to the original state, and the other limiting groove limits the limiting head in the circumferential and axial directions, and the air guide angle of the air guide blade 30 after position adjustment.

[0041] When the air guide blade 30 and the fixed seat 10 are in the second form, the cooperation of the two is as shown in Figure 11 , wherein the axial limiting platform 33 of the air guide blade 30 is located above the connecting boss 34, and the second limiting part 35 adopts a limiting head and is arranged on the bottom surface of the connecting boss 34; in the fixed seat 10, the arc-shaped upper end surface of the arc-shaped skirt 130 is used as the arc-shaped limiting area 120, and the first limiting part 121 adopts a limiting groove which is not through from top to bottom, and a plurality of limiting grooves are arranged on the arc-shaped lower end surface. Among them, the top surface of the axial limiting platform 33 is used as the first axial limiting area and abuts against the lower end surface of the mounting hole 21, and the bottom surface of the limiting head is used as the second axial limiting area and abuts against the groove bottom of the limiting groove, and the first axial limiting area faces upward and the second axial limiting area faces downward, and they are arranged away from each other, so that the base 20 can limit the upward movement of the rotating shaft 32 through the axial limiting platform 33, and the limiting groove can limit the downward movement and circumferential rotation of the rotating shaft 32 through the limiting head, thereby limiting the axial and circumferential movement of the air guide blade 30.

[0042] When the air guide blade 30 and the fixed seat 10 are in the third form, the cooperation of the two is as shown in Figure 12As shown in the drawings, the axial limiting table 33 of the guide vane 30 is located above the connecting boss 34, and the second limiting part 35 adopts a limiting head, which is located on the outer side wall of the connecting boss 34, and the top surface of the limiting head is equal in height to the top surface of the connecting boss 34; the arc-shaped inner side wall of the arc-shaped skirt 130 in the fixed seat 10 is used as the arc-shaped limiting area 120, and the first limiting part 121 adopts a limiting groove which penetrates up and down, and a plurality of limiting grooves are arranged on the arc-shaped inner side wall. Among them, the bottom surface of the axial limiting table 33 is used as the first axial limiting area and abuts against the upper end surface of the mounting hole 21, and the top surface of the limiting head and the connecting boss 34 are used as the second axial limiting area and abut against the lower end surface of the mounting hole 21, and the first axial limiting area faces downward and the second axial limiting area faces upward, and the two are away from each other, so that the base 20 can limit the up-down axial movement of the rotating shaft 32, and the limiting groove can limit the circumferential movement of the rotating shaft 32, thereby achieving the axial and circumferential limiting of the guide vane 30.

[0043] When the guide vane 30 and the fixed seat 10 are in the fourth form, the cooperation between the two is as shown in Figure 13 Compared with the third form described above, the difference between the fourth form is that the limiting head is lower than the connecting boss 34, and only the top surface of the connecting boss 34 is used as the second axial limiting area and abuts against the lower end surface of the mounting hole 21.

[0044] When the guide vane 30 and the fixed seat 10 are in the fifth form, the cooperation between the two is as shown in Figure 14 Compared with the fourth form described above, the difference between the fifth form is that the limiting groove is a non-penetrating-up-and-down groove, the top surface of the connecting boss 34 is used as the second axial limiting area and abuts against the lower end surface of the mounting hole 21, and / or the top surface of the limiting head is used as the second axial limiting area and abuts against the groove bottom of the limiting groove.

[0045] It should be noted that the above five forms are only part of the embodiments in the present application, and other embodiments that can be implemented also belong to the protection scope of the present application; for example, in the above forms, the first limiting part 121 adopts a limiting groove and the second limiting part 35 adopts a limiting head, but in other embodiments, the first limiting part 121 can also adopt a limiting head and the second limiting part 35 can also adopt a limiting groove; and in the above forms, the axial limiting table 33 is located above the connecting boss 34, but in other embodiments, the axial limiting table 33 can also be located below the connecting boss 34, and so on. In addition, as shown in Figure 5 and Figure 6 One side of the mounting hole 21 can be provided with a notch 22 for the connecting boss 34 and the second limiting part 35 to pass through, when the connecting boss 34 is located on the side of the rotating shaft 32 away from the vane 31, the guide vane 30 can be mounted by inserting the rotating shaft 32 through the mounting hole 21, so as to improve the installation convenience of the guide vane 30.

[0046] Specifically, in the embodiment, the number of the first limiting portions 121 is odd, and the first limiting portion 121 at the middle position corresponds to the middle position of the air guiding angle of the air guiding blade 30. The area directly opposite to the outlet of the indoor unit is generally the main temperature adjustment area. When the air guiding angle of the air guiding blade 30 is adjusted, the air guiding blade 30 is rotated to the position where the second limiting portion 35 cooperates with the first limiting portion 121 at the middle position, and the air guiding angle of the air guiding blade 30 is at the middle position, so that the cold and hot air of the indoor unit is blown to the main temperature adjustment area, and the temperature adjustment effect of the indoor unit is improved. Preferably, the other limiting portions on both sides of the first limiting portion 121 at the middle position are symmetrically arranged, and correspondingly, by adjusting the air guiding angle of the air guiding blade 30, the indoor unit can have symmetric air outlet ranges on both sides.

[0047] Preferably, when the seat body 100 is connected to the base 20, as shown in Figure 4 , Figure 5 and Figure 13 , the arc-shaped inner side wall of the arc-shaped skirt 130 can be coplanar with the inner wall of the hole at the corresponding area of the mounting hole 21. When the rotating shaft 32 is inserted into the mounting hole 21 and the axial through hole 111, the arc-shaped inner side wall of the arc-shaped skirt 130 can cooperate with part of the shaft side wall of the rotating shaft 32 for guiding, that is, the arc-shaped inner side wall can limit the radial movement of the rotating shaft 32 and guide and limit the circumferential rotation of the rotating shaft 32, thereby improving the stability of the circumferential rotation of the rotating shaft 32, reducing the occurrence of the situation that the second limiting portion 35 deviates from the first limiting portion 121 or the second limiting portion 35 is stuck with the first limiting portion 121 due to the deviation of the rotating shaft 32, and correspondingly ensuring the smoothness of the angle adjustment of the air guiding blade 30.

[0048] In the embodiment, as shown in Figure 5 , the area of the hole edge of the mounting hole 21 other than the arc-shaped limiting area 120 can be surrounded by an arc-shaped protruding rib 23, and the arc-shaped protruding rib 23 and the axial limiting platform 33 are located on both sides of the mounting hole. When the air guiding blade and the fixing seat 10 are installed on the base 20, on the one hand, the arc-shaped protruding rib 23 can improve the strength of the edge of the mounting hole 21, reduce the occurrence of the deformation of the base 20, thereby improving the shape stability of the mounting hole 21 and ensuring the cooperation and insertion of the mounting hole 21 and the rotating shaft 32; on the other hand, the arrangement of the arc-shaped protruding rib 23 will not affect the cooperation of the axial limiting platform and the base, and the arc-shaped protruding rib 23 can increase the depth of the corresponding hole edge of the mounting hole 21. In the process of cooperation and insertion of the rotating shaft 32 and the mounting hole 21 and rotation relative to the mounting hole 21, the hole wall of the mounting hole 21 and the inner side wall of the arc-shaped protruding rib 23 can cooperate to limit the rotating shaft 32, that is, the arc-shaped protruding rib 23 and the arc-shaped skirt 130 can cooperate to limit the radial movement of the rotating shaft 32 and guide and limit the circumferential movement of the rotating shaft 32, thereby further improving the cooperation stability of the rotating shaft 32 and the mounting hole 21 and reducing the occurrence of the inclination of the rotating shaft 32.

[0049] Optionally, in the embodiment, as shown in Figure 8 the hole edge of the axial interference hole body 112 can extend outwardly with an arc-shaped support platform 140, and the arc-shaped skirt 130 is arranged at the inner edge of the arc-shaped support platform 140 away from the axial interference hole body 112. When the fixed seat 10 is installed on the base 20 and the arc-shaped skirt 130 is located between the seat body 100 and the base 20, the distance between the seat body 100 and the base 20 is increased, i.e., the connecting space between the seat body 100 and the base 20 is increased, and a screw column 24 or the like connecting structure can be arranged on the wall surface of the base 20 facing the seat body 100, and the seat body 100 can be connected to the base 20 through the connection with the connecting structure, thereby reducing the damage to the strength and sealing performance of the base 20 caused by the connecting operation such as hole opening. As shown in Figure 6 , the wall surface of the base 20 facing the seat body 100 is provided with two screw columns 24, and the two screw columns 24 are located on the opposite sides of the mounting hole 21; correspondingly, the seat body 100 is provided with two connecting holes 170, and during installation, the two connecting holes 170 correspond to the two screw columns 24 one by one, and the screw is threaded into the screw column through the connecting hole 170, thereby achieving the detachable connection between the seat body 100 and the base 20. Of course, in other embodiments, the seat body 100 and the base 20 can also be detachably connected through a buckle structure or the like.

[0050] In the embodiment, as shown in Figure 8 , the hole edge of the axial through hole body 111 extends the arc-shaped support platform 140 to one side with an arc-shaped reinforcing platform 150. The arc-shaped reinforcing platform 150 can effectively strengthen the strength of the edge region of the matching hole 110, and correspondingly improve the shape accuracy of the matching hole 110, and the arc-shaped reinforcing platform 150 and the arc-shaped support platform 140 jointly form an annular reinforcing platform surrounding the matching hole 110, which can further improve the strengthening effect of the edge region of the matching hole 110. Preferably, the height of the arc-shaped reinforcing platform 150 is lower than that of the arc-shaped support platform 140, which can reduce the interference of the arc-shaped reinforcing platform 150 to the components of the base 20 during installation while ensuring the strengthening effect of the arc-shaped reinforcing platform 150 to the edge region of the matching hole 110.

[0051] Optionally, in the embodiment, the seat body 100 is provided with a first positioning portion 160 for positioning with the base 20; correspondingly, the base 20 is provided with a second positioning portion 25 matched with the first positioning portion 160. During installation of the fixed seat 10, the position of the seat body 100 relative to the base 20 can be preliminarily positioned through the cooperation of the second positioning portion 25 and the first positioning portion 160, and then connected, thereby improving the installation convenience and position accuracy of the fixed seat 10. Specifically, as shown in Figure 8 and Figure 9 , the first positioning portion 160 can adopt a positioning hole, as shown in Figure 5 and Figure 6As shown, the second positioning part 25 can adopt a positioning column, and during installation, the positioning column is inserted into the corresponding positioning hole to achieve the preliminary positioning of the seat body 100 and the base 20.

[0052] In this embodiment, as shown in the figure, Figure 10 As shown, the axial limiting table 33 is an annular table surrounding the rotating shaft 32, and one side of the annular end face of the axial limiting table 33 is provided with a plurality of convex points 36 abutting against the base 20, and the plurality of convex points 36 are arranged in a circumferential direction of the axial limiting table 33. Compared with the annular end face of the axial limiting table 33 abutting against the base 20 as the first axial limiting area, after the convex points 36 are arranged, the top points of the plurality of convex points 36 abut against the base 20 as the first axial limiting area to axially limit the rotating shaft 32, the contact area of the convex points 36 and the base 20 is smaller, and the circumferential rotating friction is correspondingly smaller, that is, on the basis of ensuring the axial support and limitation of the rotating shaft 32, the rotating smoothness of the guide vane 30 can be improved, and the abrasion of the base 20 and the noise pollution generated in the rotating process are reduced. Specifically, the convex points 36 can be hemispherical.

[0053] Finally, it should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0054] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fixing seat for connecting with a base (20) of an indoor unit and cooperating with a guide vane (30) of the indoor unit to perform angle adjustment, characterized in that, The fixing seat (10) comprises a seat body (100) provided with a matching hole (110) and an arc-shaped limiting area (120), the arc-shaped limiting area (120) is provided with a plurality of first limiting parts (121) for limiting the air guide angle of the air guide blade (30), the plurality of first limiting parts (121) are arranged at intervals along the arc-shaped extension direction of the arc-shaped limiting area (120), and the first limiting part (121) is one of a limiting groove and a limiting head. When the seat body (100) is connected to the base (20), the matching hole (110) corresponds to the mounting hole (21) of the base (20), the mounting hole (21) projects onto the plane of the matching hole (110) along the axial direction to form a first projection, and the first projection is located in the contour corresponding to the axial through hole body (111) in the matching hole (110). The arc-shaped extension direction of the arc-shaped limiting area (120) is consistent with the circumferential direction of the mounting hole (21).

2. The fixture of claim 1, wherein The hole body part of the matching hole (110) different from the axial through hole body (111) is an axial interference hole body (112), the hole edge of the axial interference hole body (112) extends inward to form an arc-shaped skirt (130), one of the arc-shaped end faces of the arc-shaped skirt (130) along the axial direction serves as the arc-shaped limiting area (120), or the arc-shaped inner side wall of the arc-shaped skirt (130) serves as the arc-shaped limiting area (120).

3. The fixture of claim 1, wherein The hole body part of the matching hole (110) different from the axial through hole body (111) is an axial interference hole body (112), the hole edge of the axial interference hole body (112) extends inward to form an arc-shaped skirt (130), one of the arc-shaped end faces of the arc-shaped skirt (130) along the axial direction serves as the arc-shaped limiting area (120); when the seat body (100) is connected to the base (20), the arc-shaped inner side wall of the arc-shaped skirt (130) is coplanar with the hole inner wall of the corresponding area of the mounting hole (21).

4. A holder according to claim 2 or 3, characterised in that The hole edge of the axial interference hole body (112) extends outward to form an arc-shaped support table (140), and the arc-shaped skirt (130) is arranged at the inner edge of one end of the arc-shaped support table (140) away from the axial interference hole body (112).

5. The fixture of claim 4, wherein, The hole edge of the axial through hole body (111) extends to one side of the arc-shaped support table (140) to form an arc-shaped reinforcing table (150).

6. The holder according to any one of claims 1-3, characterized in that The number of the first limiting parts (121) is odd, and the first limiting part (121) located at the middle position corresponds to the middle position of the air guide angle of the air guide blade (30).

7. The holder according to any one of claims 1-3, characterized in that The seat body (100) is provided with a first positioning part (160) for cooperating with the base (20).

8. An indoor unit, characterized by comprising: The base (20) is provided with a mounting hole (21), and the fixing seat (10) is detachably connected to the base (20). The air guide blade (30) comprises a blade (31) and a rotating shaft (32), an axial limiting platform (33) and a connecting boss (34) are arranged on the shaft side wall of the rotating shaft (32), the connecting boss (34) is provided with a second limiting part (35), and the second limiting part (35) is the other one of a limiting groove and a limiting head; the rotating shaft (32) is inserted into the mounting hole (21), a first axial limiting area of the axial limiting platform (33) abuts against the base (20), the second limiting part (35) is matched and inserted with the first limiting part (121), a second axial limiting area of the connecting boss (34) or the second limiting part (35) abuts against the base (20) or the fixing seat (10), and the first axial limiting area and the second axial limiting area are arranged towards or away from each other.

9. The indoor unit of claim 8, characterized in that, The axial limiting platform (33) is an annular platform surrounding the rotating shaft (32), and a plurality of convex points (36) abutting against the base (20) are arranged on one side annular end face of the axial limiting platform (33), and the plurality of convex points (36) are arranged in a circumferential interval along the axial limiting platform (33).

10. The indoor unit of claim 8, characterized in that, An arc-shaped convex rib (23) is arranged around the hole edge of the mounting hole (21) and the region different from the arc-shaped limiting area (120), and the arc-shaped convex rib (23) and the axial limiting platform (33) are located on both sides of the mounting hole (21).

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