indoor unit

Abstract

The application provides an indoor unit, and relates to the technical field of air conditioners. The indoor unit comprises a middle frame, a bearing piece, a bearing cover and an air guide door. The middle frame is provided with an air outlet. The bearing piece is rotatably connected to a side plate of the middle frame. The bearing cover is connected to the side plate of the middle frame and covers one end of the bearing piece, so that the stability of the bearing piece can be improved, and the bearing piece is prevented from moving along the length direction of the air guide door. The other end of the bearing piece cooperates with the air guide door to open or close the air outlet, so that the air guide door is supported, the rotation of the air guide door is not affected, the air guide door is prevented from deforming due to the excessive length and weight, and abnormal sound is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, and in particular, relates to an indoor unit. BACKGROUND

[0002] In the existing wall-mounted indoor unit, one side of the air guide door is provided with a motor for driving the air guide door to rotate, but the length of the air guide door is relatively long, and the end of the air guide door far away from the motor is prone to shaking, resulting in abnormal noise or deformation of the air guide door.

[0003] Some indoor units are provided with a bearing at the end of the air guide door far away from the motor, and the bearing is installed on the middle frame, so as to stabilize the movement of the air guide door, but the existing bearing is not stable enough and is prone to shifting along the length direction of the air guide door, or even separating from the air guide door. SUMMARY

[0004] The present application solves the problem that the bearing supporting the air guide door in the existing indoor unit is not stable enough and is prone to shifting along the length direction of the air guide door, or even separating from the air guide door.

[0005] To solve the above problems, the present application provides an indoor unit, which comprises:

[0006] a middle frame provided with an air outlet;

[0007] a bearing member rotatably connected to the side plate of the middle frame;

[0008] a bearing cover connected to the side plate of the middle frame and covering one end of the bearing member;

[0009] an air guide door cooperating with the other end of the bearing member to open or close the air outlet.

[0010] The indoor unit provided by the present application has at least the following beneficial effects:

[0011] 1. By installing the bearing member on the middle frame and cooperating the bearing member with the air guide door, the support effect of the air guide door is achieved, which not only does not affect the rotation of the air guide door, but also prevents the air guide door from deforming due to the length being too long and the weight being too large, and avoids abnormal noise.

[0012] 2. By covering the end of the bearing member far away from the air guide door with the bearing cover, the stability of the bearing member can be improved, and the bearing member is prevented from shifting along the length direction of the air guide door.

[0013] In an optional embodiment, the bearing cover comprises:

[0014] a connecting portion connected to the side plate of the middle frame;

[0015] a limiting portion connected to the connecting portion and covering one end of the bearing member.

[0016] In this way, the connecting portion of the bearing cover is connected with the side wall of the middle frame, the stability of the bearing cover is improved, and the limiting effect of the limiting portion on the bearing piece is ensured.

[0017] In an optional embodiment, a first screw hole is formed on the connecting portion, and a second screw hole is formed on the side plate of the middle frame, and the first screw hole and the second screw hole are connected by a screw.

[0018] In this way, the bearing cover is connected to the side plate of the middle frame by a screw, which is not only efficient in disassembly and assembly, but also stable after assembly.

[0019] In an optional embodiment, a limiting groove is formed on the limiting portion, and the limiting groove is matched with the end portion of the bearing piece.

[0020] In this way, the limiting portion limits the end portion of the bearing piece in the form of a limiting groove, which not only limits the axial direction of the bearing piece, but also limits the radial direction of the bearing piece.

[0021] In an optional embodiment, the limiting portion comprises:

[0022] a bottom plate connected to the connecting portion;

[0023] a ring-shaped side wall connected to the bottom plate, and a center line of the ring-shaped side wall is perpendicular to the bottom plate, forming the limiting groove.

[0024] In this way, the structure of the limiting portion is simple and convenient to manufacture.

[0025] In an optional embodiment, the limiting portion further comprises:

[0026] a supporting portion connected to the bottom plate and located inside the ring-shaped side wall, and the supporting portion is used to support the end face of the bearing piece.

[0027] In this way, the length of the bearing piece is reduced by supporting the end face of the bearing piece by the supporting portion, which avoids the end portion of the bearing piece from being raised due to the excessive length of the bearing piece, and avoids the center line of the bearing piece from being not collinear with the center line of the through hole on the air guide door matched with the bearing piece.

[0028] In an optional embodiment, the supporting portion is in a ring-shaped structure, and the end face of the ring-shaped structure is used to slide with the end face of the bearing piece.

[0029] In this way, the contact area between the supporting portion and the bearing piece is small, the relative wear during the relative sliding of the two is small, and the resistance caused by the supporting portion to the bearing piece and the air guide door is also small.

[0030] In an optional embodiment, the bearing piece comprises:

[0031] a first matching section used to match with the bearing cover;

[0032] The second mating section is connected to the first mating section and is used to mate with the through holes on the side plate;

[0033] The third section is used in conjunction with the air guide damper.

[0034] In this way, the first, second, and third mating sections of the bearing component are all mated with other parts, which not only ensures the stability of the bearing component's position but also provides stable support for the air guide damper.

[0035] In an optional embodiment, the bearing component further includes:

[0036] The protruding ridge is connected to the outer circumferential surface of the first mating section and is used for sliding mating with the bearing cover.

[0037] In this way, the contact area between the outer circumferential surface of the first mating section of the bearing component and the bearing cover is small, the relative wear generated during the relative sliding process is small, and the sliding friction force of the bearing cover on the bearing component is also reduced.

[0038] In an optional embodiment, the through hole is a stepped hole, and the through hole includes:

[0039] The first hole section is used to mate with the bearing cap;

[0040] The second hole section is used to mate with the second mating section, and the diameter of the second hole section is smaller than that of the first hole section.

[0041] In this way, on the basis that the second hole section has already played a supporting role for the second mating section of the bearing component, the first hole section is also provided to mate with the bearing cover, which can limit the bearing cover and improve the stability of the bearing cover installation position, thereby ensuring the limiting role of the bearing cover on the bearing component. Attached Figure Description

[0042] Figure 1 This is an exploded view of the indoor unit provided in an embodiment of the present invention;

[0043] Figure 2 for Figure 1 A magnified schematic diagram of part A in the middle;

[0044] Figure 3 This is a schematic diagram of the bearing cover structure;

[0045] Figure 4 This is a schematic diagram of the assembly structure of the indoor unit provided in an embodiment of the present invention;

[0046] Figure 5 for Figure 4 A magnified schematic diagram of part B in the middle.

[0047] Explanation of reference numerals in the attached figures:

[0048] 100 - indoor unit; 110 - middle frame; 111 - side plate; 112 - through hole; 1121 - first hole section; 1122 - second hole section; 113 - second screw hole; 114 - air outlet; 120 - air guide door; 130 - bearing part; 131 - first fitting section; 132 - second fitting section; 133 - third fitting section; 134 - protruding rib; 140 - bearing cover; 141 - connecting part; 1411 - first screw hole; 142 - limiting part; 1421 - limiting groove; 1422 - bottom plate; 1423 - annular side wall; 1424 - supporting part; 1425 - first reinforcing rib; 1426 - second reinforcing rib. DETAILED DESCRIPTION

[0049] In order to make the above objectives, characteristics 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.

[0050] Referring to Figure 1 and Figure 2 , the embodiment provides an indoor unit 100, which comprises a middle frame 110, an air guide door 120, a bearing part 130 and a bearing cover 140.

[0051] The middle frame 110 is provided with an air outlet 114, and the bearing part 130 is rotatably connected in the through hole 112 on the side plate 111 of the middle frame 110. The bearing cover 140 is connected on the side plate 111 of the middle frame 110 and covers one end of the bearing part 130, and the air guide door 120 cooperates with the other end of the bearing part 130. The air guide door 120 is used to open or close the air outlet 114. Of course, a motor (not shown in the figure) for driving the air guide door 120 to rotate is arranged at the end of the air guide door 120 away from the bearing part 130.

[0052] That is to say, the bearing cover 140 and the air guide door 120 are respectively located at opposite ends of the bearing part 130 and at opposite sides of the side plate 111. By installing the bearing part 130 on the middle frame 110 and cooperating the bearing part 130 with the air guide door 120, the support effect of the air guide door 120 is achieved. Not only the rotation of the air guide door 120 is not affected, but also the deformation of the air guide door 120 due to the excessive length and weight is prevented, and the abnormal sound is avoided. By covering the bearing cover 140 at the end of the bearing part 130 away from the air guide door 120, the stability of the bearing part 130 is improved, and the movement of the bearing part 130 along the length direction of the air guide door 120 is prevented.

[0053] The bearing cover 140 can be an integrally formed part, and the bearing part 130 can also be an integrally formed part, which can improve the production and assembly efficiency.

[0054] Referring to Figure 2The bearing piece 130 comprises a first fitting section 131, a second fitting section 132, a third fitting section 133 and a convex rib 134 connected in sequence, wherein the first fitting section 131 is used for fitting with the bearing cover 140, the convex rib 134 is connected on the outer circumferential surface of the first fitting section 131 and is used for slidingly fitting with the bearing cover 140. In this way, the contact area between the outer circumferential surface of the first fitting section 131 of the bearing piece 130 and the bearing cover 140 is small, the relative wear during the relative sliding of the two is small, and the sliding friction of the bearing cover 140 on the bearing piece 130 is also reduced.

[0055] The second fitting section 132 is connected on the first fitting section 131 and is used for fitting with the through hole 112 on the side plate 111, and the second fitting section 132 is a smooth cylinder and can rotate in the through hole 112. The third fitting section 133 is used for fitting with the air guide door 120 and rotates with the air guide door 120, and the third fitting section 133 can be a polygon or a star.

[0056] In this way, the first fitting section 131, the second fitting section 132 and the third fitting section 133 of the bearing piece 130 are fitted with other parts respectively, which not only ensures the position stability of the bearing piece 130, but also stably supports the air guide door 120.

[0057] Preferably, the width of the third fitting section 133 is smaller than the outer diameter of the second fitting section 132, so that the end surface of the second fitting section 132 for connecting the third fitting section 133 can abut against the wall surface of the air guide door 120, and the movement of the bearing piece 130 towards the air guide door 120 can be limited. Alternatively, the outer diameter of the second fitting section 132 can be smaller than the width of the first fitting section 131, so that the end surface of the first fitting section 131 for connecting the second fitting section 132 can abut against the wall surface of the side plate 111, and the movement of the bearing piece 130 towards the air guide door 120 can be limited.

[0058] Please refer to Figure 2 The through hole 112 on the side plate 111 is a stepped hole, and the through hole 112 comprises a first hole section 1121 and a second hole section 1122 connected in sequence, wherein the first hole section 1121 is used for fitting with the bearing cover 140, the second hole section 1122 is used for fitting with the second fitting section 132 of the bearing piece 130, and the hole diameter of the second hole section 1122 is smaller than that of the first hole section 1121. In this way, on the basis of the supporting effect of the second hole section 1122 on the second fitting section 132 of the bearing piece 130, the first hole section 1121 is further provided for fitting with the bearing cover 140, which can limit the position of the bearing cover 140 and improve the stability of the installation position of the bearing cover 140, thereby ensuring the limiting effect of the bearing cover 140 on the bearing piece 130.

[0059] In addition, the bearing cover 140 comprises a connecting portion 141 and a limiting portion 142, wherein the connecting portion 141 is connected to the side plate 111 of the middle frame 110, and specifically, a first screw hole 1411 is formed in the connecting portion 141, and a second screw hole 113 is formed in the side plate 111 of the middle frame 110, and the first screw hole 1411 and the second screw hole 113 are connected by a screw. The limiting portion 142 is connected to the connecting portion 141 and covers one end of the bearing piece 130. In this way, the connecting portion 141 of the bearing cover 140 is connected to the side wall of the middle frame 110, and the limiting portion 142 is matched with the first hole segment 1121, which further improves the stability of the bearing cover 140, thereby ensuring the limiting effect of the limiting portion 142 on the bearing piece 130. Moreover, the bearing cover 140 is connected to the side plate 111 of the middle frame 110 by a screw, which not only has high disassembly and assembly efficiency, but also has good stability after assembly.

[0060] Please refer to Figure 3 The limiting portion 142 comprises a bottom plate 1422, an annular side wall 1423, a supporting portion 1424, a first reinforcing rib 1425 and a second reinforcing rib 1426, wherein the bottom plate 1422 is connected to the connecting portion 141, the annular side wall 1423 is connected to the bottom plate 1422, the center line of the annular side wall 1423 is perpendicular to the bottom plate 1422, a limiting groove 1421 is formed, and the limiting groove 1421 is used for matching with the end of the bearing piece 130. In this way, the limiting portion 142 limits the end of the bearing piece 130 in the form of the limiting groove 1421, which not only limits the axial direction of the bearing piece 130, but also limits the radial direction of the bearing piece 130, and the structure of the limiting portion 142 is simple and convenient to manufacture.

[0061] The supporting portion 1424 is connected to the bottom plate 1422 and located inside the annular side wall 1423, and is used for supporting the end face of the bearing piece 130. In this way, the length of the bearing piece 130 is reduced by supporting the end face of the bearing piece 130 by the supporting portion 1424, which avoids the end of the bearing piece 130 from being raised due to the excessive length of the bearing piece 130, and avoids the center line of the bearing piece 130 from being not collinear with the center line of the through hole 112 of the air guide door 120 which matches with the bearing piece 130.

[0062] Preferably, the supporting portion 1424 has an annular structure, and the end face of the annular structure is used for slidingly matching with the end face of the bearing piece 130. In this way, the contact area between the supporting portion 1424 and the bearing piece 130 is small, the relative wear generated in the relative sliding process of the two is small, and the resistance caused by the supporting portion 1424 to the bearing piece 130 and the air guide door 120 is also small.

[0063] In other embodiments, the supporting portion 1424 can also have other structure forms with small end face area, such as a cross-shaped structure, a triangular structure, etc.

[0064] Please refer to Figure 3 The first reinforcing rib 1425 is connected between the outer circumferential surface of the annular sidewall 1423 and the bottom plate 1422, which can strengthen the connection strength between the annular sidewall 1423 and the bottom plate 1422. Preferably, the height of the first reinforcing rib 1425 from the end far away from the bottom plate 1422 to the end close to the bottom plate 1422 gradually increases relative to the annular sidewall 1423, because in the process of assembling the annular sidewall 1423 to the through hole 112 of the side plate 111, the end of the first reinforcing rib 1425 far away from the bottom plate 1422 is inserted into the through hole 112 first, so that the first reinforcing rib 1425 can guide the annular sidewall 1423. Moreover, in the process of injection molding, the injection material can be fully diffused into each cavity through the channel formed by the first reinforcing rib 1425 in the mold, ensuring the completion of the molding of the bearing cover 140 and improving the yield of production.

[0065] The second reinforcing rib 1426 is connected between the inner circumferential surface of the annular sidewall 1423, the bottom plate 1422 and the support part 1424, which not only can strengthen the connection strength between the annular sidewall 1423, the bottom plate 1422 and the support part 1424, but also can facilitate the injection material to fully diffuse into each cavity through the channel formed by the second reinforcing rib 1426 in the mold in the process of injection molding, ensuring the completion of the molding of the bearing cover 140 and improving the yield of production.

[0066] The assembly process of the indoor unit 100 provided in the embodiment is as follows:

[0067] Please refer to Figure 4 and Figure 5 First, the air guide door 120 is maintained at the air outlet 114 of the middle frame 110, then the bearing part 130 is inserted into the through hole 112 from the outside of the side plate 111, and the third matching section 133 of the bearing part 130 is inserted into the air guide door 120, realizing the cooperation between the bearing part 130 and the air guide door 120, then the bearing cover 140 is inserted into the through hole 112 and covers the first matching section 131 of the bearing part 130, and finally the bearing cover 140 is fixed on the side plate 111 of the middle frame 110 by using screws.

[0068] The beneficial effects of the indoor unit 100 provided in the embodiment include:

[0069] 1. By installing the bearing part 130 on the middle frame 110 and cooperating the bearing part 130 with the air guide door 120, the support effect of the air guide door 120 is achieved, which not only does not affect the rotation of the air guide door 120, but also prevents the air guide door 120 from deforming due to excessive length and weight, avoiding abnormal noise;

[0070] 2. By setting the bearing cover 140 on the end cover of the bearing part 130 away from the air guide door 120, the stability of the bearing part 130 can be improved, and the bearing part 130 can be prevented from moving along the length direction of the air guide door 120;

[0071] 3. The limiting part 142 limits the end of the bearing part 130 in the form of the limiting groove 1421, which can not only limit the axial direction of the bearing part 130, but also limit the radial direction of the bearing part 130;

[0072] 4. The bearing cover 140 is inserted into the through hole 112 on the middle frame 110 and connected to the middle frame 110 by screws, which has high disassembly and assembly efficiency and good stability after assembly;

[0073] 5. The bearing cover 140 is supported to the end face of the bearing part 130 by the supporting part 1424, which can reduce the length of the bearing part 130, avoid the end of the bearing part 130 from being raised due to the length of the bearing part 130 being too long, and avoid the center line of the bearing part 130 from being not collinear with the center line of the through hole 112 on the air guide door 120 which cooperates with the bearing part 130;

[0074] 6. The supporting part 1424 is in a ring structure, and the end face of the ring structure is used for sliding cooperation with the end face of the bearing part 130, the relative wear generated in the relative sliding process of the two is small, and the resistance caused by the supporting part 1424 to the bearing part 130 and the air guide door 120 is also small;

[0075] 7. The outer periphery of the first cooperation section 131 of the bearing part 130 is provided with the convex rib 134, the contact area between the bearing cover 140 and the convex rib 134 is small, the relative wear generated in the relative sliding process of the two is small, and the sliding friction force of the bearing cover 140 to the bearing part 130 is also reduced.

[0076] Although the present application is disclosed as above, the present application is not limited to this. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and therefore the protection scope of the present application should be subject to the scope defined by the claims.

Claims

1. An indoor unit, characterized in that, The indoor unit includes: The middle frame (110) has an air outlet (114). The bearing component (130) is rotatably connected to the side plate (111) of the middle frame (110); A bearing cover (140) is connected to the side plate (111) of the middle frame (110) and covers one end of the bearing component (130). The bearing cover (140) includes a connecting part (141) and a limiting part (142). The connecting part (141) is connected to the side plate (111) of the middle frame (110). A first screw hole (1411) is provided on the connecting part (141), and a second screw hole (113) is provided on the side plate (111) of the middle frame (110). The first screw hole (1411) and the second screw hole (113) are connected by screws. The limiting part (142) is connected to the connecting part (141) and covers one end of the bearing component (130). The limiting part includes a support part (1424), which is used to support the end face of the bearing component (130). The air deflector (120) engages with the other end of the bearing (130) to open or close the air outlet (114).

2. The indoor unit according to claim 1, characterized in that, The limiting part (142) has a limiting groove (1421) which engages with the end of the bearing part (130).

3. The indoor unit according to claim 2, characterized in that, The limiting part (142) includes: The base plate (1422) is connected to the connecting part (141); An annular sidewall (1423) is connected to the base plate (1422), and the center line of the annular sidewall (1423) is perpendicular to the base plate (1422), forming the limiting groove (1421).

4. The indoor unit according to claim 3, characterized in that, The limiting part (142) further includes: A support portion (1424) is connected to the base plate (1422) and located inside the annular sidewall (1423), the support portion (1424) being used to support the end face of the bearing component (130).

5. The indoor unit according to claim 4, characterized in that, The support part (1424) is a ring structure, and the end face of the ring structure is used to slide with the end face of the bearing part (130).

6. The indoor unit according to claim 1, characterized in that, The bearing component (130) includes: The first mating section (131) is used to mate with the bearing cap (140); The second mating section (132) is connected to the first mating section (131), and the second mating section (132) is used to mate with the through hole (112) on the side plate (111); The third matching section (133) is used to match the air guide door (120).

7. The indoor unit according to claim 6, characterized in that, The bearing component (130) also includes: A protruding ridge (134) is connected to the outer peripheral surface of the first mating section (131), and the protruding ridge (134) is used to slide with the bearing cap (140).

8. The indoor unit according to claim 6, characterized in that, The through hole (112) is a stepped hole, and the through hole (112) includes: The first hole section (1121) is used to mate with the bearing cap (140); The second hole section (1122) is used to mate with the second mating section (132), and the diameter of the second hole section (1122) is smaller than the diameter of the first hole section (1121).

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