CN216589200U - Air duct rotating mechanism, indoor unit and air conditioner - Google Patents
Air duct rotating mechanism, indoor unit and air conditioner Download PDFInfo
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- CN216589200U CN216589200U CN202122978154.6U CN202122978154U CN216589200U CN 216589200 U CN216589200 U CN 216589200U CN 202122978154 U CN202122978154 U CN 202122978154U CN 216589200 U CN216589200 U CN 216589200U
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Abstract
The utility model provides an air duct rotating mechanism, an indoor unit and an air conditioner, wherein the air duct rotating mechanism comprises: the fan comprises a fan blade and a fan shell, and the fan blade and the fan shell are both rotatably arranged and used for supplying air and changing the air outlet angle; the two bearing assemblies are respectively arranged on two opposite sides of the fan along the axial direction of the fan and are fixed on a machine body of an indoor unit of the air conditioner, and each bearing assembly comprises a shell bearing which is used for being connected with a fan shell to support the fan shell; wherein, the shell bearing includes the portion of cup jointing that is used for cup jointing each other with the casing pivot of fan casing and sets up the backstop portion of keeping away from the one end of fan casing in order to carry out the backstop to the axial float of fan casing in the portion of cup jointing to solve the problem that there is the axial float in the fan casing of the air conditioner among the prior art.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to an air duct rotating mechanism, an indoor unit and an air conditioner.
Background
When an existing wall-mounted air conditioner works, the upper air outlet direction, the lower air outlet direction and the angle of the air conditioner are adjusted through the up-down swinging of the air guide plate, but the air guide plate of the wall-mounted air conditioner has some problems: for example, the comfort of the user is deteriorated due to the limited upper and lower air supply angles, and the range of the upper and lower wind sweeping angles of the air deflector is small, so that the use requirements of the user cannot be met.
In order to solve the problems, the air conditioner indoor unit is provided, and a fan shell of the air conditioner indoor unit can rotate so as to realize large-angle rotating air supply.
However, in designing an air conditioner in which the fan case can rotationally blow air, the problem of axial movement of the fan case needs to be solved, and it is necessary to restrict axial movement of the fan case and maintain stability of the rotating mechanism.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide an air duct rotating mechanism, an indoor unit and an air conditioner, and aims to solve the problem that a fan shell of the air conditioner in the prior art axially moves.
In order to achieve the above object, according to a first aspect of the present invention, there is provided an air duct rotating mechanism comprising: the fan comprises a fan blade and a fan shell, and the fan blade and the fan shell are both rotatably arranged and used for supplying air and changing the air outlet angle; the two bearing assemblies are respectively arranged on two opposite sides of the fan along the axial direction of the fan and are fixed on a machine body of an indoor unit of the air conditioner, and each bearing assembly comprises a shell bearing which is used for being connected with a fan shell to support the fan shell; the shell bearing comprises a sleeve joint part and a stop part, wherein the sleeve joint part is used for being mutually sleeved with a shell rotating shaft of the fan shell, and the stop part is arranged at one end, far away from the fan shell, of the sleeve joint part and is used for stopping axial movement of the fan shell.
Further, the air duct rotating mechanism comprises a transmission structure which is used for being in transmission connection with the fan shell; the axial distance between the stopping parts of the shell bearings of the two bearing assemblies in the axial direction of the fan is L1(ii) a The total axial length of the fan shell is L2(ii) a The axial disengagement dimension of the transmission structure is L3(ii) a The allowable axial movement size of the fan shell is mu; wherein, mu is L1-L2，0＜μ＜L3。
Further, 0 < mu < 1/3L3。
Further, at least one of the two bearing assemblies comprises: the bearing seat is used for being fixed on a machine body of an indoor unit of the air conditioner; the bearing seat is arranged on the shell bearing and comprises a first mounting section for mounting the shell bearing.
Further, at least one of the two bearing assemblies further comprises: the fan blade bearing is sleeved on a fan blade rotating shaft of the fan blade to support the fan blade; the fan blade bearing is arranged on the bearing seat, and the axis of the fan blade rotating shaft, the axis of the shell rotating shaft, the axis of the fan blade bearing and the axis of the shell bearing are collinear.
Further, the bearing seat is of a hollow cylindrical structure; the fan blade bearing and the shell bearing are arranged on the inner side of the bearing seat, the fan blade bearing is positioned on one side, away from the fan shell, of the shell bearing, and the stopping part is provided with a through shaft hole for the fan blade rotating shaft to penetrate through; or the fan blade bearing is arranged on the inner side of the bearing seat, and the shell bearing is arranged on the outer side of the bearing seat; or the fan blade bearing and the shell bearing are both arranged on the outer side of the bearing seat, and the fan blade bearing is positioned on one side of the shell bearing close to the fan shell.
Further, a bearing sleeve is clamped between the fan blade bearing and the bearing seat; the bearing seat comprises a second mounting section for mounting the bearing sleeve, and the second mounting section is provided with a bearing sleeve limiting part for limiting the axial movement of the bearing sleeve; the bearing sleeve is provided with a limiting groove matched with the limiting part of the bearing sleeve, and the limiting part of the bearing sleeve and the limiting groove are used for limiting the bearing sleeve.
Further, at least one of the two bearing assemblies comprises: the fan blade bearing is used for being mutually sleeved with a fan blade rotating shaft of the fan blade to support the fan blade; the casing bearing is used for being fixed on a machine body of an indoor unit of the air conditioner, the casing rotating shaft is rotatably arranged relative to the casing bearing, and the fan blade bearing is arranged on the casing bearing.
Furthermore, the axes of the fan blade bearings, the axes of the fan blade rotating shafts and the axes of the shell rotating shafts are collinear; the shell bearing comprises an installation part for installing the fan blade bearing, and the installation part is positioned on one side of the stopping part far away from the sleeving part.
Furthermore, the sleeve joint part and the shell rotating shaft are both hollow columnar structures, wherein the shell rotating shaft is sleeved on the outer peripheral surface of the sleeve joint part, and the stopping part is an annular plate body arranged around the outer peripheral surface of the sleeve joint part; or the sleeve joint part is sleeved on the outer peripheral surface of the shell rotating shaft, and the stopping part is an annular plate body arranged around the inner wall surface of the sleeve joint part.
Further, wind channel rotary mechanism still includes: the first motor is arranged at one end, far away from the fan, of one bearing assembly and is used for being in driving connection with the fan blade to drive the fan blade to rotate; and/or the second motor is in driving connection with the fan shell through a transmission structure so as to drive the fan shell to rotate.
Furthermore, a first motor shaft of the first motor extends into the fan shell to be connected with the blade body of the fan blade; and through holes for the first motor shaft to pass through are formed in the bearing assembly close to the first motor and the shell rotating shaft of the fan shell.
Further, the air conditioner is provided with a fan,the diameter of the blade rotating shaft of the blade is D1The inner diameter of the sleeve joint part is D2Wherein D is2＞D1。
Further, 7D1≥D2＞D1。
According to a second aspect of the present invention, an indoor unit is provided, which includes an air duct rotating mechanism, and the air duct rotating mechanism is the above-mentioned air duct rotating mechanism.
According to a third aspect of the present invention, there is provided an air conditioner including an indoor unit, the indoor unit being the indoor unit described above.
By applying the technical scheme, the air duct rotating mechanism comprises a fan and two bearing assemblies, wherein the fan comprises a fan blade and a fan shell, the fan blade and the fan shell can rotate independently, so that the fan shell replaces an air deflector of an indoor unit of an air conditioner in the prior art to realize the up-and-down air supply of the indoor unit of a hung air conditioner or the left-and-right air supply of the indoor unit of a cabinet air conditioner, the air outlet volume and the air sweeping angle of the indoor unit are increased, the overall performance of the air conditioner is improved, and the comfort requirement of a user is met; the two bearing assemblies are respectively arranged on two opposite sides of the fan along the axial direction of the fan and are fixed on a machine body of an indoor unit of the air conditioner, and each bearing assembly comprises a shell bearing which is used for being connected with a fan shell to support the fan shell; the shell bearing comprises a sleeve joint part and a stop part, wherein the sleeve joint part is used for being mutually sleeved with a shell rotating shaft of the fan shell, the stop part is arranged at one end, away from the fan shell, of the sleeve joint part and is used for stopping axial movement of the fan shell, so that the axial movement of the fan shell is limited, the influence of the axial movement of the fan shell in the rotating process on the performance of the fan is reduced, the stability and the reliability of an air duct rotating mechanism are guaranteed, and the problem that the axial movement exists in the fan shell of the air conditioner in the prior art is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
figure 1 shows a half-sectional view of a first embodiment of a wind tunnel rotary mechanism according to the present invention;
FIG. 2 shows an exploded view of the first bearing assembly of the wind tunnel rotary mechanism shown in FIG. 1;
FIG. 3 shows a half-sectional view of a first bearing assembly of the wind tunnel rotary mechanism shown in FIG. 2;
FIG. 4 shows an exploded view of the second bearing assembly of the wind tunnel rotary mechanism shown in FIG. 1;
FIG. 5 shows a half-sectional view of the second bearing assembly of the wind tunnel rotary mechanism shown in FIG. 4;
figure 6 shows a half-sectional view of a second embodiment of a wind tunnel rotary mechanism according to the present invention;
figure 7 shows a half-sectional view of a third embodiment of a wind tunnel rotary mechanism according to the present invention;
figure 8 shows a half-sectional view of a fourth embodiment of a wind tunnel rotary mechanism according to the present invention;
FIG. 9 shows an exploded view of the first bearing assembly of the wind tunnel rotary mechanism shown in FIG. 8;
figure 10 shows a half-sectional view of a fifth embodiment of a wind tunnel rotation mechanism according to the present invention; and
figure 11 shows a half-sectional view of a sixth embodiment of a wind tunnel rotary mechanism according to the present invention.
Wherein the figures include the following reference numerals:
1. a fan; 11. a fan blade; 111. a blade body; 112. a fan blade rotating shaft; 12. a fan housing; 121. a housing body; 122. a housing shaft;
2. a bearing assembly; 2001. a first bearing assembly; 2002. a second bearing assembly; 20. a bearing seat; 201. a first mounting section; 202. a second mounting section; 203. a bearing housing limiting part; 21. a fan blade bearing; 22. a housing bearing; 220. a shaft passing hole; 221. a socket joint part; 222. a stopper portion; 223. an installation part; 23. a bearing housing;
3. a transmission structure; 4. a first motor; 41. a first motor shaft; 5. a second motor.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 11, the present invention provides an air duct rotating mechanism, including: the fan 1 comprises a fan blade 11 and a fan shell 12, wherein the fan blade 11 and the fan shell 12 are both rotatably arranged for supplying air and changing the air outlet angle; the two bearing assemblies 2 are respectively arranged on two opposite sides of the fan 1 along the axial direction of the fan 1 and are fixed on the body of the indoor unit of the air conditioner, and each bearing assembly 2 comprises a shell bearing 22 which is used for being connected with the fan shell 12 to support the fan shell; the shell bearing 22 includes a sleeve portion 221 for sleeving the shell rotating shaft 122 of the fan shell 12, and a stopper portion 222 disposed at an end of the sleeve portion 221 away from the fan shell 12 to stop axial movement of the fan shell 12.
The air duct rotating mechanism comprises a fan 1 and two bearing assemblies 2, wherein the fan 1 comprises a fan blade 11 and a fan shell 12, the fan blade 11 and the fan shell 12 can rotate independently, so that the fan shell 12 replaces an air deflector of an indoor unit of an air conditioner in the prior art to realize the up-and-down air supply of the indoor unit of a hung air conditioner or the left-and-right air supply of the indoor unit of a cabinet air conditioner, the air outlet volume and the air sweeping angle of the indoor unit are increased, the overall performance of the air conditioner is improved, and the comfort requirement of a user is met; the two bearing assemblies 2 are respectively arranged on two opposite sides of the fan 1 along the axial direction of the fan 1 and fixed on the body of the indoor unit of the air conditioner, and each bearing assembly 2 comprises a shell bearing 22 which is used for being connected with the fan shell 12 to support the fan shell; the shell bearing 22 comprises a sleeve-joint part 221 and a stopping part 222, wherein the sleeve-joint part 221 is used for being mutually sleeved with the shell rotating shaft 122 of the fan shell 12, the stopping part 222 is arranged at one end, far away from the fan shell 12, of the sleeve-joint part 221 so as to stop axial movement of the fan shell 12, the axial movement of the fan shell is limited, the influence of the axial movement of the fan shell 12 in the rotating process on the performance of a fan is reduced, the stability and the reliability of the air duct rotating mechanism are guaranteed, and the problem that the axial movement exists in the fan shell of the air conditioner in the prior art is solved.
As shown in fig. 1, the air duct rotating mechanism of the present invention includes a transmission structure 3 for transmission connection with a fan housing 12; when the two bearing assemblies 2 are both fixed on the indoor unit body of the air conditioner through a buckle or a fastener and the air duct rotating mechanism is assembled, the axial distance between the stopping portions 222 of the shell bearings 22 of the two bearing assemblies 2 is L along the axial direction of the fan 11(ii) a Total axial length of fan housing 12 is L2(ii) a The axial disengagement dimension of the transmission 3 is L3(ii) a The allowable axial play dimension of the fan housing 12 is μ; wherein, mu is L1-L2，0＜μ＜L3。
Preferably, 0 < mu < 1/3L3。
Specifically, when the transmission structure 3 is a gear assembly, the axial disengagement dimension of the transmission structure 3 refers to the meshing tooth width between two gears meshed with each other, and when the axial movement dimension of the fan housing 12 is greater than or equal to the meshing tooth width, the two gears meshed with each other cannot transmit power due to complete separation; when the transmission structure 3 is a crank rocker assembly, the axial disengagement dimension of the transmission structure 3 refers to the length of the connecting piece between two mutually connected parts, and when the axial movement dimension of the fan housing 12 is greater than or equal to the length of the connecting piece, the two mutually connected parts are completely separated and cannot transmit power.
The allowable axial play dimension μ of fan housing 12 is a value that does not adversely affect the rotation of fan housing 12 when the axial movement dimension of fan housing 12 is less than or equal to μ.
The air duct rotating mechanism of the present invention further comprises: the first motor 4 is arranged at one end, away from the fan 1, of one of the bearing assemblies 2 and is used for being in driving connection with the fan blade 11 so as to drive the fan blade 11 to rotate and provide air volume; and/or the second motor 5 is arranged on one side of the fan shell 12, is in driving connection with the fan shell 12 through the transmission structure 3 to drive the fan shell 12 to rotate, and is used for supplying air up and down or supplying air left and right of the indoor unit.
In the embodiment of the utility model shown in fig. 1, the first motor shaft 41 of the first motor 4 extends into the fan housing 12 to be directly connected to the blade body 111 of the fan blade 11; through holes for the first motor shaft 41 to pass through are formed in the bearing assembly 2 close to the first motor 4 and the housing rotating shaft 122 of the fan housing 12 close to the first motor 4.
In the three embodiments of the utility model illustrated in fig. 1 to 7, at least one of the two bearing assemblies 2 comprises: a bearing seat 20 for fixing on the body of the indoor unit of the air conditioner; wherein the shell bearing 22 is arranged on the bearing seat 20, the bearing seat 20 comprises a first mounting section 201 for mounting the shell bearing 22.
In particular, at least one of the two bearing assemblies 2 further comprises: the fan blade bearing 21 is sleeved on a fan blade rotating shaft 112 of the fan blade 11 to support the fan blade 11; the fan blade bearing 21 is arranged on the bearing seat 20, and in order to keep a gap between the fan blade 11 and the fan housing 12 constant all the time in the rotation process of the fan housing 12 so as to ensure that no adverse effect is caused on the working performance of the fan and the fan structure is reliable, the axis of the fan blade rotating shaft 112, the axis of the housing rotating shaft 122, the axis of the fan blade bearing 21 and the axis of the housing bearing 22 must be collinear.
Optionally, the bearing seat 20 is a hollow cylindrical structure; as shown in fig. 1 to 5, the blade bearing 21 and the shell bearing 22 are both disposed inside the bearing seat 20 (that is, the bearing seat 20 is sleeved on the blade bearing 21 and the shell bearing 22), the blade bearing 21 is sleeved on the blade rotating shaft 112, the shell bearing 22 is sleeved on the shell rotating shaft 122, the blade bearing 21 is located on one side of the shell bearing 22 away from the fan shell 12, and the stopper 222 is provided with an axial through hole 220 for the blade rotating shaft 112 to pass through; or, as shown in fig. 6, the fan blade bearing 21 is disposed inside the bearing seat 20 (i.e., the bearing seat 20 is sleeved on the fan blade bearing 21), the shell bearing 22 is disposed outside the bearing seat 20 (i.e., the shell bearing 22 is sleeved on the bearing seat 20), the fan blade bearing 21 is sleeved on the fan blade rotating shaft 112, and the shell rotating shaft 122 is sleeved on the shell bearing 22; alternatively, as shown in fig. 7, the blade bearing 21 and the shell bearing 22 are both disposed outside the bearing seat 20 (i.e., the blade bearing 21 and the shell bearing 22 are both sleeved on the bearing seat 20), the blade rotating shaft 112 is sleeved on the blade bearing 21, the shell rotating shaft 122 is sleeved on the shell bearing 22, and the blade bearing 21 is located on one side of the shell bearing 22 close to the fan shell 12.
In this embodiment, a bearing sleeve 23 is further interposed between the blade bearing 21 and the bearing seat 20; the bearing seat 20 comprises a second mounting section 202 for mounting the bearing sleeve 23, and the second mounting section 202 is provided with a bearing sleeve limiting part 203 for limiting the axial movement of the bearing sleeve 23; the bearing sleeve 23 is provided with a limit groove matched with the bearing sleeve limiting part 203, and the bearing sleeve limiting part 203 and the limit groove are used for limiting the bearing sleeve 23.
As shown in fig. 1 to 5, one implementation of the first embodiment is as follows:
the fan blade 11 includes a blade body 111 and a blade rotating shaft 112 disposed on one side of the blade body 111 for connecting with one of the bearing assemblies 2, the fan casing 12 includes a casing body 121 and two casing rotating shafts 122 disposed on opposite sides of the casing body 121 for connecting with two bearing assemblies 2, respectively, and the two bearing assemblies 2 include a first bearing assembly 2001 and a second bearing assembly 2002.
As shown in fig. 1 to 3, the first bearing assembly 2001 includes a bearing seat 20, a blade bearing 21, a casing bearing 22 and a bearing sleeve 23, which are disposed in the bearing seat 20, the bearing sleeve 23 is clamped between the blade bearing 21 and the bearing seat 20, the blade bearing 21 is located on one side of the casing bearing 22 away from the casing body 121 of the fan casing 12, and the casing bearing 22 is a hollow cylinder structure for the blade rotating shaft 112 to pass through; the blade bearing 21 is connected to the blade rotating shaft 112 of the blade 11 to support the rotation of the blade 11, and the shell bearing 22 is connected to a shell rotating shaft 122 of the fan shell 12 to support the rotation of the fan shell 12.
As shown in fig. 1, 4 and 5, the second bearing assembly 2002 only comprises a bearing seat 20 and a housing bearing 22 arranged in the bearing seat 20, the first motor 4 is arranged on one side of the fan 1 close to the second bearing assembly 2002 and on one side of the second bearing assembly 2002 far away from the housing body 121 of the fan housing 12, and the first motor shaft 41 of the first motor 4 passes through the bearing seat 20, the housing bearing 22 and the corresponding through hole on the housing rotating shaft 122 and enters the housing body 121 to be connected with the blade body 111 so as to drive the fan blade to rotate; the second motor 5 is also located on the side of the fan 1 adjacent to the second bearing assembly 2002 and is connected to the housing shaft 122 via the transmission 3 to drive the fan housing 12 to rotate.
The fan blade bearing 21 and the housing bearing 22 are made of a lubricating material, or the surfaces of the fan blade bearing 21 and the housing bearing 22 are coated with a lubricating agent.
In the three embodiments of the utility model illustrated in fig. 8 to 11, at least one of the two bearing assemblies 2 comprises: the fan blade bearing 21 is used for being mutually sleeved with a fan blade rotating shaft 112 of the fan blade 11 to support the fan blade 11; the casing bearing 22 is used for being fixed on the body of the indoor unit of the air conditioner, the casing rotating shaft 122 is rotatably arranged relative to the casing bearing 22, and the fan blade bearing 21 is arranged on the casing bearing 22.
Thus, the bearing housing 20 and the housing bearing 22 are combined into one piece to form the housing bearing 22 of the second embodiment, which can simplify the processing steps of the bearing assembly and improve the production efficiency of the bearing assembly; the housing bearing 22 and the housing rotating shaft 122 are made of a lubricating material, or a lubricant is coated between the housing bearing 22 and the housing rotating shaft 122, so that the housing rotating shaft 122 is rotatably disposed relative to the housing bearing 22.
In the rotation process of the fan housing 12, in order to keep the gap between the fan blade 11 and the fan housing 12 constant all the time, so as to ensure that the working performance of the fan is not adversely affected and the fan structure is reliable, the axes of the fan blade bearing 21, the axis of the fan blade rotating shaft 112 and the axis of the housing rotating shaft 122 must be collinear.
As shown in fig. 8 and 9, the housing bearing 22 includes a mounting portion 223 for mounting the vane bearing 21, and the mounting portion 223 is located on a side of the stopping portion 222 away from the sleeve portion 221.
Optionally, the housing bearing 22 is a hollow cylindrical structure; as shown in fig. 8 and 9, the blade bearing 21 is disposed inside the housing bearing 22 (i.e., the housing bearing 22 is sleeved on the blade bearing 21), the blade bearing 21 is disposed on one side of the housing rotating shaft 122 away from the housing body 121 of the fan housing 12, the blade bearing 21 is sleeved on the blade rotating shaft 112, the housing bearing 22 is sleeved on the housing rotating shaft 122, and the stopping portion 222 is provided with a through-shaft hole 220 for the blade rotating shaft 112 to pass through; or, as shown in fig. 10, the blade bearing 21 is disposed inside the housing bearing 22 (i.e., the housing bearing 22 is sleeved on the blade bearing 21), the blade bearing 21 is sleeved on the blade rotating shaft 112, and the housing rotating shaft 122 is sleeved on the housing bearing 22; alternatively, as shown in fig. 11, the blade bearing 21 is disposed outside the housing bearing 22 (that is, the housing bearing 22 is sleeved on the blade bearing 21), the housing rotating shaft 122 is sleeved outside the housing bearing 22, and a connection point between the housing rotating shaft 122 and the housing bearing 22 is located on a side of the blade bearing 21 away from the fan housing 12.
Preferably, in this embodiment, a bearing sleeve 23 is interposed between the blade bearing 21 and the housing bearing 22; a bearing bush limiting part 203 for limiting the axial movement of the bearing bush 23 is arranged on the housing bearing 22; the bearing sleeve 23 is provided with a limit groove matched with the bearing sleeve limiting part 203, and the bearing sleeve limiting part 203 and the limit groove are used for limiting the bearing sleeve 23.
In the embodiment shown in fig. 1 to 11 of the present invention, the sleeving part 221 and the shell rotating shaft 122 are both hollow cylindrical structures, wherein the shell rotating shaft 122 is sleeved on the outer circumferential surface of the sleeving part 221, and the stopping part 222 is an annular plate body disposed around the outer circumferential surface of the sleeving part 221, that is, the stopping part 222 protrudes toward one side of the sleeving part 221 close to the axis of the shell rotating shaft 122; or the sleeve-joint part 221 is sleeved on the outer peripheral surface of the housing rotating shaft 122, and the stopping part 222 is an annular plate body arranged around the inner wall surface of the sleeve-joint part 221, that is, the stopping part 222 protrudes toward one side of the sleeve-joint part 221 away from the axis of the housing rotating shaft 122.
One implementation of this second embodiment is as follows:
the fan blade 11 includes a blade body 111 and a blade rotating shaft 112 disposed on one side of the blade body 111 for connecting with one of the bearing assemblies 2, the fan casing 12 includes a casing body 121 and two casing rotating shafts 122 disposed on opposite sides of the casing body 121 for connecting with two bearing assemblies 2, respectively, and the two bearing assemblies 2 include a first bearing assembly 2001 and a second bearing assembly 2002.
The first bearing assembly 2001 includes a casing bearing 22, and a blade bearing 21 and a bearing sleeve 23 which are arranged in the casing bearing 22, the bearing sleeve 23 is clamped between the blade bearing 21 and the bearing seat 20, the blade bearing 21 is located on one side of the stopping portion 222 of the casing bearing 22 away from the sleeve portion 221, and the casing bearing 22 is a hollow cylinder structure for the blade rotating shaft 112 to pass through; the blade bearing 21 is connected to the blade rotating shaft 112 of the blade 11 to support the rotation of the blade 11, and the shell bearing 22 is connected to a shell rotating shaft 122 of the fan shell 12 to support the rotation of the fan shell 12.
The second bearing assembly 2002 only comprises a shell bearing 22, the first motor 4 is arranged on one side of the fan 1 close to the second bearing assembly 2002 and on one side of the second bearing assembly 2002 far away from the shell body 121 of the fan shell 12, and the first motor shaft 41 of the first motor 4 passes through the shell bearing 22 and the corresponding through hole on the shell rotating shaft 122 and enters the shell body 121 to be connected with the blade body 111 so as to drive the blade to rotate; the second motor 5 is also located on the side of the fan 1 adjacent to the second bearing assembly 2002 and is connected to the housing shaft 122 via the transmission 3 to drive the fan housing 12 to rotate.
The fan blade bearing 21 and the housing bearing 22 are made of a lubricating material, or the surfaces of the fan blade bearing 21 and the housing bearing 22 are coated with a lubricating agent.
As shown in fig. 3, in the embodiment of the present invention, the diameter of the blade rotating shaft 112 of the blade 11 is D1The inner diameter of the engaging portion 221 is D2In which D is2＞D1。
Preferably, 7D1≥D2＞D1。
The utility model provides an indoor unit which comprises an air duct rotating mechanism.
The utility model also provides an air conditioner which comprises the indoor unit.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the air duct rotating mechanism comprises a fan 1 and two bearing assemblies 2, wherein the fan 1 comprises a fan blade 11 and a fan shell 12, the fan blade 11 and the fan shell 12 can rotate independently, so that the fan shell 12 replaces an air deflector of an indoor unit of an air conditioner in the prior art to realize the up-and-down air supply of the indoor unit of a hung air conditioner or the left-and-right air supply of the indoor unit of a cabinet air conditioner, the air outlet volume and the air sweeping angle of the indoor unit are increased, the overall performance of the air conditioner is improved, and the comfort requirement of a user is met; the two bearing assemblies 2 are respectively arranged on two opposite sides of the fan 1 along the axial direction of the fan 1 and fixed on the body of the indoor unit of the air conditioner, and each bearing assembly 2 comprises a shell bearing 22 which is used for being connected with the fan shell 12 to support the fan shell; the shell bearing 22 includes a sleeve portion 221 for being sleeved with the shell rotating shaft 122 of the fan shell 12, and a stopper portion 222 which is arranged at one end of the sleeve portion 221 away from the fan shell 12 and used for stopping axial movement of the fan shell 12, so as to limit the axial movement of the fan shell, reduce the influence of the axial movement of the fan shell 12 on the fan performance in the rotating process, ensure the stability and reliability of the air duct rotating mechanism, and solve the problem that the fan shell of the air conditioner in the prior art has axial movement.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (16)
1. An air duct rotating mechanism, comprising:
the fan comprises a fan (1), wherein the fan (1) comprises fan blades (11) and a fan shell (12), and the fan blades (11) and the fan shell (12) are both rotatably arranged and used for supplying air and changing an air outlet angle;
the two bearing assemblies (2) are respectively arranged on two opposite sides of the fan (1) along the axial direction of the fan (1) and are fixed on a machine body of an indoor unit of an air conditioner, and each bearing assembly (2) comprises a shell bearing (22) which is used for being connected with the fan shell (12) to support the fan shell;
the shell bearing (22) comprises a sleeve joint part (221) and a stopping part (222), wherein the sleeve joint part (221) is used for being mutually sleeved with a shell rotating shaft (122) of the fan shell (12), and the stopping part (222) is arranged at one end, far away from the fan shell (12), of the sleeve joint part (221) and is used for stopping axial movement of the fan shell (12).
2. A wind tunnel rotary mechanism according to claim 1, characterised in that it comprises a transmission structure (3) for transmission connection with the fan housing (12); along the axial direction of the fan (1),
the axial distance between the stops (222) of the housing bearings (22) of the two bearing assemblies (2) is L1；
The total axial length of the fan shell (12) is L2；
The axial disengagement dimension of the transmission structure (3) is L3；
The allowable axial play size of the fan shell (12) is mu;
wherein, mu is L1-L2，0＜μ＜L3。
3. An air duct rotation mechanism according to claim 2, wherein 0 < μ < 1/3L3。
4. A wind tunnel rotation mechanism according to claim 1, characterized in that at least one of the two bearing assemblies (2) comprises:
a bearing seat (20) for fixing on the body of the indoor unit of the air conditioner;
wherein the housing bearing (22) is arranged at the bearing seat (20), the bearing seat (20) comprising a first mounting section (201) for mounting the housing bearing (22).
5. A wind tunnel rotation mechanism according to claim 4, characterized in that at least one of the two bearing assemblies (2) further comprises:
the fan blade bearing (21) is sleeved on a fan blade rotating shaft (112) of the fan blade (11) to support the fan blade (11);
the fan blade bearing (21) is arranged on the bearing seat (20), and the axis of the fan blade rotating shaft (112), the axis of the shell rotating shaft (122), the axis of the fan blade bearing (21) and the axis of the shell bearing (22) are collinear.
6. An air duct rotation mechanism according to claim 5, characterised in that the bearing housing (20) is of hollow cylindrical construction; wherein the content of the first and second substances,
the fan blade bearing (21) and the shell bearing (22) are both arranged on the inner side of the bearing seat (20), the fan blade bearing (21) is positioned on one side, away from the fan shell (12), of the shell bearing (22), and a stop part (222) is provided with a through shaft hole (220) for the fan blade rotating shaft (112) to pass through; or
The fan blade bearing (21) is arranged on the inner side of the bearing seat (20), and the shell bearing (22) is arranged on the outer side of the bearing seat (20); or
The fan blade bearing (21) and the shell bearing (22) are arranged on the outer side of the bearing seat (20), and the fan blade bearing (21) is located on one side, close to the fan shell (12), of the shell bearing (22).
7. An air duct rotation mechanism according to claim 5,
a bearing sleeve (23) is clamped between the fan blade bearing (21) and the bearing seat (20);
the bearing seat (20) comprises a second mounting section (202) for mounting the bearing sleeve (23), and a bearing sleeve limiting part (203) for limiting the axial movement of the bearing sleeve (23) is arranged on the second mounting section (202);
the bearing sleeve (23) is provided with a limiting groove matched with the bearing sleeve limiting part (203), and the bearing sleeve limiting part (203) and the limiting groove are jointly used for limiting the bearing sleeve (23).
8. A wind tunnel rotation mechanism according to claim 1, characterized in that at least one of the two bearing assemblies (2) comprises:
the fan blade bearing (21) is used for being mutually sleeved with a fan blade rotating shaft (112) of the fan blade (11) to support the fan blade (11);
the shell bearing (22) is used for being fixed on a machine body of an indoor unit of an air conditioner, the shell rotating shaft (122) is rotatably arranged relative to the shell bearing (22), and the fan blade bearing (21) is arranged on the shell bearing (22).
9. An air duct rotation mechanism according to claim 8, wherein the axis of the fan blade bearing (21), the axis of the fan blade rotating shaft (112) and the axis of the housing rotating shaft (122) are collinear; the shell bearing (22) comprises an installation part (223) used for installing the fan blade bearing (21), and the installation part (223) is located on one side, away from the sleeving part (221), of the stopping part (222).
10. An air duct rotating mechanism according to claim 5 or 8, wherein the socket part (221) and the housing rotating shaft (122) are both hollow cylindrical structures, wherein,
the shell rotating shaft (122) is sleeved on the outer peripheral surface of the sleeving part (221), and the stopping part (222) is an annular plate body arranged around the outer peripheral surface of the sleeving part (221); or
The sleeving part (221) is sleeved on the outer peripheral surface of the shell rotating shaft (122), and the stopping part (222) is an annular plate body arranged around the inner wall surface of the sleeving part (221).
11. The air duct rotation mechanism of claim 1, further comprising:
the first motor (4) is arranged at one end, away from the fan (1), of one of the bearing assemblies (2) and is in driving connection with the fan blade (11) to drive the fan blade (11) to rotate; and/or
The second motor (5) is in driving connection with the fan shell (12) through a transmission structure (3) to drive the fan shell (12) to rotate.
12. An air duct rotation mechanism according to claim 11,
a first motor shaft (41) of the first motor (4) extends into the fan shell (12) to be connected with a blade body (111) of the fan blade (11);
the bearing assembly (2) close to the first motor (4) and the shell rotating shaft (122) of the fan shell (12) are provided with through holes for the first motor shaft (41) to pass through.
13. An air duct rotating mechanism according to claim 5 or 8, characterized in that the diameter of the blade rotating shaft (112) of the blade (11) is D1The inner diameter of the sleeve joint part (221) is D2Wherein D is2＞D1。
14. An air duct rotary mechanism according to claim 13 characterised in that 7D1≥D2＞D1。
15. An indoor unit comprising an air duct rotating mechanism, wherein the air duct rotating mechanism is the air duct rotating mechanism according to any one of claims 1 to 14.
16. An air conditioner comprising an indoor unit, characterized in that the indoor unit is the indoor unit according to claim 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122978154.6U CN216589200U (en) | 2021-11-29 | 2021-11-29 | Air duct rotating mechanism, indoor unit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122978154.6U CN216589200U (en) | 2021-11-29 | 2021-11-29 | Air duct rotating mechanism, indoor unit and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216589200U true CN216589200U (en) | 2022-05-24 |
Family
ID=81651006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122978154.6U Active CN216589200U (en) | 2021-11-29 | 2021-11-29 | Air duct rotating mechanism, indoor unit and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216589200U (en) |
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2021
- 2021-11-29 CN CN202122978154.6U patent/CN216589200U/en active Active
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