Indoor unit and air conditioner

Abstract

The utility model provides an indoor unit and an air conditioner, and the indoor unit comprises a base which is provided with a fixing position and a fan mounting position which are adjacently arranged; the bearing sleeve is mounted at the fixing position and is used for being in running fit with a fan shaft of the fan mounted at the fan mounting position; the bearing sleeve comprises an arc surface, and the diameter defined by the arc surface changes in a one-way mode in the axis extending direction of the bearing sleeve. The utility model solves the technical problem that a conventionally used bearing sleeve usually needs to be mounted in a bearing fixing seat firstly, and then the bearing fixing seat is mounted on a base of an air conditioner indoor unit, so that the risk that the bearing sleeve and the bearing fixing seat are not mounted in place exists while materials and mounting procedures are increased.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to an indoor unit and an air conditioner. Background Art

[0002] The indoor crossflow fan blade is a component that controls the air flow in the indoor unit of the air conditioner. It is installed on the base of the air conditioner through bearings and other components. The indoor crossflow fan blade bearing is installed in the bearing sleeve. The bearing sleeve is generally made of rubber. This component can reduce the friction of the crossflow fan blade during movement and can also reduce noise. It is an indispensable component.

[0003] However, the bearing sleeve commonly used now usually needs to be installed in the bearing fixing seat first, and then the bearing fixing seat is installed on the base of the air conditioner indoor unit. This not only increases the materials and installation processes, but also poses the risk of improper installation between the bearing sleeve and the bearing fixing seat. Utility Model Content

[0004] The technical problem solved by the utility model is that the conventionally used bearing sleeve usually needs to be installed in the bearing fixing seat first, and then the bearing fixing seat is installed on the base of the air conditioner indoor unit. This leads to an increase in materials and installation procedures, and there is also a risk that the bearing sleeve and the bearing fixing seat are not properly installed.

[0005] In order to solve the above problems, the utility model provides an indoor unit, comprising: a base, the base is provided with a fixing position and a fan installation position arranged adjacent to each other; a bearing sleeve, the bearing sleeve is installed to the fixing position, and is used to rotate with the fan shaft installed to the fan installation position; wherein the bearing sleeve includes an arc surface, and the diameter surrounded by the arc surface changes unidirectionally along the extension direction of the axis of the bearing sleeve.

[0006] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: Since the bearing sleeve in the related technology is installed on the base through the bearing fixing seat, it is easy for the bearing sleeve to be accidentally separated from the bearing fixing seat under the action of vibration, and then abnormal noise will occur during operation. Therefore, in combination with the content of this technical solution, by directly installing the bearing sleeve to the base, the bearing fixing seat is omitted. On the one hand, the number of parts required for installing the bearing sleeve is reduced, and the effect of simplifying the disassembly and assembly steps is achieved; on the other hand, the accidental separation between the bearing sleeve and the bearing fixing seat mentioned above is effectively avoided. Further, in combination with the structure of the bearing sleeve, that is, it has the characteristics of a circular arc surface with a unidirectional change in diameter, for example, the unidirectional change in diameter is such as a gradual decrease. Correspondingly, the fixing position on the base has a structural feature adapted to the circular arc surface, ensuring that no correction operation is required during the installation of the bearing sleeve to the base, thereby further improving the assembly efficiency and reducing the difficulty of subsequent installation of the fan.

[0007] In one example of the utility model, the bearing sleeve includes a tapered portion corresponding to the arc surface; the fixing position includes a receiving groove adapted to the shape of the tapered portion; wherein, when the bearing sleeve is installed in the receiving groove, the diameter of the tapered portion gradually decreases in the direction approaching the fan.

[0008] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: combined with the actual situation of the fan being assembled to the base, the movement of the fan along its axial direction can be restricted by the adaptation of the conical portion and the accommodating groove. In addition, by at least wrapping the conical portion through the accommodating groove, the vibration transmitted from the fan to the base can be dispersed to a certain extent, thereby improving the shock absorption effect.

[0009] In one example of the utility model, the bearing sleeve also includes a matching portion, which is arranged on the side of the conical portion close to the fan; the fixing position also includes a matching groove that is interference fit with the matching portion; wherein, along the extension direction of the axis, the diameter surrounded by the matching portion has the same position.

[0010] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: through the interference fit between the mating part and the mating groove, the radial shaking of the fan installed in the fan mounting position is effectively limited, and combined with the mutual cooperation between the conical part and the accommodating groove, the stability of the fan installed on the base is improved.

[0011] In one example of the utility model, the area of ​​the bearing sleeve surrounded by the shaft hole is defined as the first area, and the area arranged in the circumference of the shaft hole is defined as the second area; the base is provided with a stopper, and the stopper is arranged on the side of the bearing sleeve close to the fan installation position; wherein the projection of the stopper and the portion of the bearing sleeve corresponding to the second area in the direction extending along the axis at least partially overlap.

[0012] Compared with the prior art, the technical effect achieved by adopting this technical solution is: the assembly stability of the bearing sleeve on the base is further improved.

[0013] In one example of the utility model, the stop member includes a first stop portion and a second stop portion that are arranged opposite to each other; the first stop portion is arranged at one end along the radial direction of the bearing sleeve, and the second stop portion is arranged at the other end of the bearing sleeve that is arranged opposite to each other; and / or the stop member is integrally formed with the base.

[0014] Compared with the prior art, the technical effect achieved by adopting the technical solution is: the assembly stability of the bearing sleeve on the base is further improved. In an example of the utility model, the bearing sleeve is clamped with the base.

[0015] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: the bearing sleeve is installed by a clamping method, which facilitates the disassembly and assembly of the bearing sleeve and improves the disassembly and assembly efficiency.

[0016] In an example of the present invention, the length of the bearing sleeve along the extension direction of its axis is greater than the width of the groove of the fixing position in the same direction.

[0017] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: combined with the deformable characteristic of the bearing sleeve, an interference fit between the bearing sleeve and the fixed position is achieved, thereby improving the assembly stability of the bearing sleeve in the fixed position.

[0018] In an example of the utility model, it includes: a heat exchanger bracket, which is installed at a position corresponding to the fixed position of the base; wherein the heat exchanger bracket is provided with a limiting groove adapted to the bearing sleeve.

[0019] Compared with the prior art, the technical effect achieved by adopting this technical solution is: ensuring the installation stability of the bearing sleeve in the indoor unit.

[0020] In an example of the present invention, when the heat exchanger bracket is installed to the base, the heat exchanger bracket applies an extrusion force on the bearing sleeve that forms an angle with the extension direction of the axis; wherein the extrusion force includes a component force that squeezes the bearing sleeve to the base.

[0021] Compared with the prior art, the technical effect achieved by adopting this technical solution is: the stability of the bearing sleeve installed on the base is further improved.

[0022] On the other hand, an embodiment of the present utility model further provides an air conditioner, comprising: an indoor unit as provided in any of the above examples.

[0023] Compared with the prior art, the technical effect achieved by adopting this technical solution is: it can achieve the technical effect corresponding to any of the above-mentioned technical solutions, which will not be repeated here.

[0024] After adopting the technical solution of the utility model, the following technical effects can be achieved:

[0025] (1) In combination with the content of the technical solution, by directly installing the bearing sleeve to the base, the bearing fixing seat is omitted. On the one hand, the number of parts required for installing the bearing sleeve is reduced, and the effect of simplifying the disassembly and assembly steps is achieved; on the other hand, the accidental separation between the bearing sleeve and the bearing fixing seat mentioned above is effectively avoided. Furthermore, in combination with the structure of the bearing sleeve, that is, it has the characteristics of an arc surface with a unidirectional change in diameter, for example, the unidirectional change in diameter is such as a gradual decrease, and correspondingly, the fixing position on the base has a structural feature adapted to the arc surface, ensuring that no correction operation is required during the installation of the bearing sleeve to the base, thereby further improving the assembly efficiency and reducing the difficulty of subsequent installation of the fan;

[0026] (2) The interference fit between the mating portion and the mating groove effectively limits the radial shaking of the fan installed in the fan mounting position. Combined with the mutual cooperation between the conical portion and the accommodating groove, the stability of the fan installed on the base is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the connection between the base, the bearing fixing seat and the cylindrical bearing sleeve in the related art.

[0028] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0029] Figure 3 Schematic diagram of the correct assembly of the bearing retainer and cylindrical bearing sleeve.

[0030] Figure 4 for Figure 3 Exploded diagram of .

[0031] Figure 5 Schematic diagram of incorrect assembly of the bearing retainer and cylindrical bearing sleeve.

[0032] Figure 6 A schematic diagram of the connection between a base and a bearing sleeve provided in an embodiment of the utility model.

[0033] Figure 7 for Figure 6 Enlarged view of point B in the middle.

[0034] Figure 8 A structural schematic diagram of a bearing sleeve provided in an embodiment of the utility model.

[0035] Description of reference numerals:

[0036] 10. base; 101. fan installation position; 102. axis extension direction; 11. stopper; 111. first stopper; 112. second stopper; 20. bearing sleeve; 21. tapered portion; 22. matching portion; 23. arc surface; 24. shaft hole; 25. first area; 26. second area;

[0037] 200. Bearing fixing seat; 210. Cylindrical bearing sleeve. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] See also Figure 1-Figure 5In the related art, the bearing sleeve 20 is installed on the base 10 with the help of the bearing fixing seat 200. Specifically, the bearing sleeve 20 needs to be installed on the bearing fixing seat 200 in advance, and then the two are installed on the base 10 as a whole. Since the bearing sleeve 20 and the bearing fixing seat 200 are tightly matched, and the bearing sleeve 20 has the characteristic of rubber deformation, it is easy for the two to be installed improperly, which is specifically manifested in that the bearing sleeve 20 is tilted in the bearing fixing seat 200. Therefore, during the installation process, if the above-mentioned improper installation occurs, the staff needs to correct it. For example, the existing bearing sleeve 20 is a cylindrical bearing sleeve 210.

[0040] Furthermore, if the above-mentioned tilted setting is not discovered in time, it will further increase the obstacles in the subsequent installation of the fan.

[0041] So, see Figure 6 , which is a schematic diagram of the connection between the base 10 and the bearing sleeve 20 provided in the embodiment of the utility model. Figure 7-Figure 8 Specifically, the utility model provides an indoor unit, which includes a base 10 and a bearing sleeve 20. The base 10 is provided with a fixing position and a fan installation position 101 arranged adjacent to each other; the bearing sleeve 20 is installed in the fixing position, and is used to rotate with the fan shaft installed in the fan installation position 101; wherein the bearing sleeve 20 includes an arc surface 23, and along the axis extension direction 102 of the bearing sleeve 20, the diameter of the arc surface 23 changes in one direction.

[0042] Since the bearing sleeve 20 in the related art is installed on the base 10 through the bearing fixing seat 200, it is easy for the bearing sleeve 20 to be accidentally separated from the bearing fixing seat 200 under the action of vibration, and then abnormal noise will occur during operation. Therefore, in combination with the content of the present technical solution, by directly installing the bearing sleeve 20 to the base 10, the bearing fixing seat 200 is omitted. On the one hand, the number of components required for installing the bearing sleeve 20 is reduced, and the effect of simplifying the disassembly and assembly steps is achieved; on the other hand, the accidental separation between the bearing sleeve 20 and the bearing fixing seat 200 mentioned above is effectively avoided. Further, in combination with the structure of the bearing sleeve 20, that is, it has the characteristics of the arc surface 23 with a unidirectional change in diameter, for example, the unidirectional change in diameter is, for example, gradually decreasing, correspondingly, the fixing position on the base 10 has a structural feature adapted to the arc surface 23, ensuring that no correction operation is required in the process of installing the bearing sleeve 20 to the base 10, thereby further improving the assembly efficiency and reducing the difficulty of subsequent smooth assembly of the fan.

[0043] Preferably, the bearing sleeve 20 includes a tapered portion 21 corresponding to the arc surface 23; the fixing position includes a receiving groove adapted to the shape of the tapered portion 21; wherein, when the bearing sleeve 20 is installed in the receiving groove, the diameter of the tapered portion 21 gradually decreases in the direction approaching the fan.

[0044] In view of the actual situation of the fan being assembled to the base 10, the movement of the fan along its axial direction can be restricted by the adaptation of the conical portion 21 and the receiving groove. In addition, by at least wrapping the conical portion 21 through the receiving groove, the vibration transmitted from the fan to the base 10 can be dispersed to a certain extent, thereby improving the shock absorption effect.

[0045] Preferably, the bearing sleeve 20 also includes a mating portion 22, which is arranged on the side of the conical portion 21 close to the fan; the fixed position also includes a mating groove that is interference fit with the mating portion 22; wherein, along the axial extension direction 102, the diameter surrounded by the mating portion 22 exists at the same position.

[0046] For example, the matching portion 22 has a cylindrical shape, and correspondingly, the shape of the matching groove is also adapted to the matching portion 22 .

[0047] Preferably, the area of ​​the bearing sleeve 20 surrounded by the shaft hole 24 is defined as the first area 25, and the area arranged circumferentially to the shaft hole 24 is defined as the second area 26; the base 10 is provided with a stopper 11, and the stopper 11 is arranged on the side of the bearing sleeve 20 close to the fan mounting position 101; wherein the projection of the stopper 11 and the portion of the bearing sleeve 20 corresponding to the second area 26 in the axial extension direction 102 at least partially overlaps.

[0048] Preferably, the stop member 11 includes a first stop portion 111 and a second stop portion 112 that are arranged opposite to each other; the first stop portion 111 is arranged at one end along the radial direction of the bearing sleeve 20, and the second stop portion 112 is arranged at the other end of the bearing sleeve 20 that is arranged opposite to each other; and / or the stop member 11 is integrally formed with the base 10.

[0049] Preferably, the bearing sleeve 20 is snap-fitted to the base 10 .

[0050] Preferably, the length of the bearing sleeve 20 along the axial extension direction 102 thereof is greater than the groove width of the fixing position in the same direction.

[0051] Preferably, the indoor unit includes, for example, a heat exchanger bracket, which is mounted to a position of the base 10 corresponding to a fixed position; wherein the heat exchanger bracket is provided with a limiting groove adapted to the bearing sleeve 20 .

[0052] Furthermore, when the heat exchanger bracket is installed to the base 10 , the heat exchanger bracket applies an extrusion force on the bearing sleeve 20 that is at an angle to the axis extension direction 102 ; wherein the extrusion force includes a component force that squeezes the bearing sleeve 20 to the base 10 .

[0053] On the other hand, the embodiment of the utility model further provides an air conditioner, specifically, the air conditioner includes, for example, an indoor unit as mentioned in any of the above embodiments. Correspondingly, this embodiment can achieve the technical effects corresponding to any of the above technical solutions, which will not be repeated here.

[0054] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. An indoor unit, characterized in that: include: A base (10), wherein the base (10) is provided with a fixing position and a fan installation position (101) arranged adjacent to each other; A bearing sleeve (20), the bearing sleeve (20) being installed in the fixing position and being used to cooperate with a fan installed in the fan installation position (101); The bearing sleeve (20) comprises an arc surface (23), and along an axial extension direction (102) of the bearing sleeve (20), a diameter enclosed by the arc surface (23) changes in one direction.

2. The indoor unit according to claim 1, characterized in that: The bearing sleeve (20) comprises a tapered portion (21) corresponding to the arc surface (23); The fixing position comprises a receiving groove adapted to the shape of the tapered portion (21); Wherein, when the bearing sleeve (20) is installed in the accommodating groove, the diameter of the conical portion (21) gradually decreases in a direction approaching the fan.

3. The indoor unit according to claim 2, characterized in that: The bearing sleeve (20) further comprises a matching portion (22), wherein the matching portion (22) is arranged on a side of the conical portion (21) close to the fan; The fixing position also includes a matching groove which is interference-fitted with the matching portion (22); Wherein, along the axial extension direction (102), the diameters surrounded by the matching portions (22) exist at the same locations.

4. The indoor unit according to claim 2, characterized in that: The bearing sleeve (20) is defined as a first region (25) where the shaft hole (24) is enclosed, and a second region (26) where the shaft hole (24) is arranged in a circumferential direction. The base (10) is provided with a stopper (11), and the stopper (11) is arranged on a side of the bearing sleeve (20) close to the fan installation position (101); The projections of the stopper (11) and the portion of the bearing sleeve (20) corresponding to the second region (26) along the axial extension direction (102) at least partially overlap.

5. The indoor unit according to claim 4, characterized in that: The stopper (11) comprises a first stopper portion (111) and a second stopper portion (112) which are arranged opposite to each other; The first stopper (111) is arranged at one end of the bearing sleeve (20) in the radial direction, and the second stopper (112) is arranged at the other end of the bearing sleeve (20) which is arranged opposite thereto; and / or The stopper (11) and the base (10) are integrally formed.

6. The indoor unit according to any one of claims 1 to 5, characterized in that: The bearing sleeve (20) is clamped with the base (10).

7. The indoor unit according to claim 6, characterized in that: The length of the bearing sleeve (20) along the axial extension direction (102) thereof is greater than the groove width of the fixing position in the same direction.

8. The indoor unit according to claim 1, characterized in that: include: A heat exchanger bracket, the heat exchanger bracket being mounted to a position of the base (10) corresponding to the fixed position; Wherein, the heat exchanger bracket is provided with a limiting groove adapted to the bearing sleeve (20).

9. The indoor unit according to claim 8, characterized in that: When the heat exchanger bracket is mounted on the base (10), the heat exchanger bracket applies a squeezing force on the bearing sleeve (20) that forms an angle with the axis extension direction (102); The extrusion force includes a component force for extruding the bearing sleeve (20) toward the base (10).

10. An air conditioner, characterized in that: include: An indoor unit as claimed in any one of claims 1 to 9.

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