Shaft sleeve piece of air guide plate, air guide assembly and air conditioner
By designing a shaft kit made of elastic material, the deformation ability and abutment design of the first and second raised structures are used to solve the problem of shaking of the air guide plate during operation, and the stable operation of the air guide plate and good buffering effect are achieved.
Patent Information
- Application Number
- CN202323397449.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-12
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2033-12-12
AI Technical Summary
During operation, the existing air guide plates cause jitter due to the gap between the shaft sleeve and the air guide plate, especially when the rotation shaft is arranged in the form of a semi-axis body and an elastic arm, radial jitter increases.
A shaft kit made of elastic material is designed, including a peripheral wall, an end, a first projection structure and a second projection structure. The first convex structure on the peripheral wall has good deformation ability, can stabilize the radial position of the rotation shaft, and solve the problem of up and down front and back shaking; the second convex structure is in the shape of a ball crown, which can abut with the end face of the rotation shaft, solve the problem of left and right shaking, and at the same time reduce the obstacles to rotation by friction.
It effectively solves the problem of the air guide plate shaking, ensures the stable operation of the air guide plate, reduces the obstacles to rotation by friction, and produces a good buffering effect.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air conditioners, and in particular to a shaft kit of an air guide plate for solving the problem of air guide plate shaking, an air guide component and an air conditioner. Background Art
[0002] The air conditioner indoor unit includes an air guide assembly, which includes an air outlet component, an air guide plate, a motor and a shaft sleeve. The air outlet component is such as a top cover, and an upper air outlet is arranged on the top cover. The motor and the shaft sleeve are both installed on the air guide assembly and are located on the left and right sides of the air outlet. The left and right direction is the axial direction of the air guide plate. The first axial end of the air guide plate is connected to the motor, and the second axial end of the air guide plate is provided with a rotating shaft, which is inserted into the shaft sleeve.
[0003] The purpose of setting the sleeve is to solve the problem of the wind deflector shaking left and right and falling off during transportation. The sleeve is made of elastic materials such as rubber or silicone, and includes a peripheral wall, and the outer periphery of the peripheral wall is provided with a retaining ring and a convex edge. When the sleeve is inserted into the mounting hole on the wall of the air outlet component, the wall is confined between the retaining ring and the convex edge to stabilize the sleeve.
[0004] A through shaft hole is formed in the peripheral wall, and the rotating shaft of the air guide plate is arranged as a separated half shaft body and an elastic arm. An undercut is arranged at the end of the elastic arm. When the rotating shaft is inserted into the shaft hole, the elastic arm contracts and deforms, and the undercut passes through the shaft hole and buckles the shaft sleeve along the axial direction.
[0005] Although the existing air guide assembly solves the problem of falling off during transportation, due to the large friction coefficient of the rubber surface, in order to prevent jamming, a gap needs to be reserved between the peripheral wall of the sleeve and the air guide plate in both the axial and radial directions. These gaps will cause the air guide plate to vibrate during operation. In particular, the arrangement of a half-shaft body and an elastic arm on the rotating shaft makes it possible for the rotating shaft to deform, thereby aggravating the radial vibration. Utility Model Content
[0006] The first purpose of the utility model is to provide a shaft sleeve of an air guide plate which can solve the problem of the air guide plate shaking in all directions.
[0007] The second object of the utility model is to provide an air guide assembly which can solve the problem of the air guide plate shaking in all directions.
[0008] The third purpose of the utility model is to provide an air conditioner which can solve the problem of the air guide plate shaking in all directions.
[0009] The first purpose of the utility model provides an axis kit for an air guide plate, which is made of an elastic material. The axis kit includes a circumferential wall, the inner periphery of which forms an axis hole, and the outer periphery of the circumferential wall is provided with an axial clamping structure; the inner periphery of the circumferential wall is provided with a first protrusion structure protruding toward the axis hole, and the outer periphery of the circumferential wall is provided with a first recessed structure corresponding to the first protrusion structure; the axis kit also includes an axial end portion, which is connected to the circumferential wall and blocks the axis hole axially, the inner side of the end portion is provided with a second protrusion structure protruding toward the axis hole, and the outer side of the end portion is provided with a second recessed structure corresponding to the second protrusion structure.
[0010] It can be seen from the above scheme that a first protrusion structure that can abut against the rotating shaft from the outer periphery is arranged on the peripheral wall, and due to the arrangement of the first recessed structure, the first protrusion structure has good deformation ability. Therefore, the first protrusion structure can not only stabilize the radial position of the rotating shaft and solve the problem of the up and down and front and back shaking of the air guide plate, but also will not hinder the rotation due to excessive friction, and also form a good buffering capacity; similarly, the second protrusion structure in the axial direction abuts against the end face of the rotating shaft, thereby clamping the air guide plate from opposite sides with the motor shaft, solving the problem of the left and right shaking of the air guide plate, and at the same time, will not generate excessive friction to hinder the rotation, and produce a good buffering effect.
[0011] A further solution is that a plurality of first protrusion structures are arranged along the circumference of the peripheral wall.
[0012] As can be seen from the above, this arrangement is beneficial for the outer periphery of the rotating shaft to only abut against the plurality of first protrusion structures instead of directly abutting against the peripheral wall itself, thereby further solving the problem of excessive friction force hindering rotation.
[0013] Another further solution is that the outer surface of the first protruding structure is an arc surface, and in the axial cross section, the outer surface of the first protruding structure forms an arc.
[0014] As can be seen from the above, the friction coefficient of the surface of the rubber or silicone member is relatively large. Under this setting, the contact area between the first protrusion structure and the surface of the rotating shaft is smaller, further solving the obstacle of friction to the rotation of the air guide plate.
[0015] Another further solution is that the first protrusion structure extends axially in a strip shape.
[0016] As can be seen from the above, this arrangement enables the first protruding structure to support the rotating shaft at various locations in the axial direction, which helps to ensure that the rotating shaft remains at the axis center of the peripheral wall.
[0017] Another further solution is that the second protruding structure is in the shape of a spherical crown.
[0018] It can be seen from the above that the spherical crown-shaped second protrusion structure not only has good elastic deformation ability, but also has a small contact degree with the end surface of the rotating shaft, thereby reducing the resistance of friction to the rotation of the rotating shaft.
[0019] A further solution is that the center of the second protrusion structure is located at the axis center of the peripheral wall.
[0020] As can be seen from the above, under this arrangement, when the first protrusion structure positions the rotating shaft and keeps the rotating shaft at the axis of the peripheral wall, it can ensure that the second protrusion structure and the rotating shaft maintain a stable abutment state.
[0021] Another further solution is that the first protruding structure protrudes along the radial direction of the peripheral wall toward the axis of the peripheral wall; and / or the second protruding structure protrudes along the axial direction.
[0022] Another further solution is that the inner contour of the first recessed structure matches the outer contour of the first raised structure, and / or the inner contour of the second recessed structure matches the outer contour of the second raised structure.
[0023] As can be seen from the above, this arrangement enables the first protruding structure to have better deformation ability in the radial direction, while the second protruding structure has better deformation ability in the axial direction.
[0024] The second purpose of the utility model provides an air guide assembly including an air outlet component, an air guide plate, an axis kit and a drive unit. The air outlet component is provided with an air outlet, the drive unit is fixedly arranged on the air outlet component, the air guide plate is arranged at the air outlet, the first axial end of the air guide plate is connected to the drive unit, the second axial end of the air guide plate is provided with a rotating shaft, the air outlet component includes a wall body, and a mounting hole is arranged on the wall body; the axis kit adopts the above-mentioned axis kit; the axis kit is installed in the mounting hole, and the clamping structure cooperates with the wall body along the axial limit; the rotating shaft is inserted into the axis hole, the first protrusion structure abuts against the rotating shaft to limit the rotating shaft from the outer periphery of the rotating shaft, and the second protrusion structure abuts against the rotating shaft to limit the rotating shaft from the axial direction of the rotating shaft.
[0025] It can be seen from the above scheme that after the air guide plate is installed, the first protrusion structure and the second protrusion structure both maintain a firm abutting and fitting relationship with the rotating shaft. The first protrusion structure can not only stabilize the radial position of the rotating shaft and solve the problem of the air guide plate shaking up and down and front and back, but also will not hinder the rotation due to excessive friction, and also form a good buffering capacity; and the second protrusion structure in the axial direction abuts the end face of the rotating shaft, thereby clamping the air guide plate from opposite sides with the motor shaft, solving the problem of the air guide plate shaking left and right, and at the same time hindering the rotation due to excessive friction, producing a good buffering effect.
[0026] A further solution is that, along the axial direction of the peripheral wall, the engaging structure includes a retaining ring and a retaining protrusion that are arranged at intervals, and the wall body is confined between the retaining ring and the retaining protrusion.
[0027] As can be seen from the above, when the sleeve is inserted into the mounting hole on the wall of the tuyere component, the wall is confined between the retaining ring and the convex edge to stabilize the sleeve.
[0028] The third object of the present invention is to provide an air conditioner comprising the above-mentioned air guide assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 This is a structural diagram of an embodiment of the air guide assembly of the utility model after the air guide plate is hidden from the first perspective.
[0030] Figure 2 This is a structural diagram of the wind guide assembly embodiment of the utility model after the wind guide plate is hidden from the second viewing angle.
[0031] Figure 3 This is a structural exploded view of the wind guide assembly embodiment of the utility model after the top cover is hidden.
[0032] Figure 4 for Figure 1 Enlarged view of point A in the middle.
[0033] Figure 5 for Figure 2 Enlarged view of point B in the middle.
[0034] Figure 6 for Figure 3 Enlarged view of point C in the middle.
[0035] Figure 7 It is a structural diagram of an embodiment of the shaft kit of the utility model.
[0036] Figure 8 It is a radial cross-sectional view of an embodiment of the shaft kit of the utility model.
[0037] Fig. 9 It is a cross-sectional view of the shaft kit embodiment of the utility model at the first protrusion structure in the axial direction.
[0038] Fig.10 This is an axial view of an embodiment of the shaft kit of the present utility model.
[0039] Fig.11 It is a partial cross-sectional view of an embodiment of the air guide assembly of the utility model.
[0040] Fig.12 This is a matching view of the shaft kit and the rotating shaft in the shaft kit embodiment of the utility model. DETAILED DESCRIPTION
[0041] See also Figures 1 to 3 The air conditioner of the present invention is a top-outlet indoor unit, and the air conditioner includes an air guide assembly, and the air guide assembly includes a top cover 1, an air guide plate 2, a shaft kit 3 and a motor 4. The top cover 1 is the air outlet component of the present invention, and the motor 4 is the drive unit of the present invention.
[0042] The top cover 1 is provided with an air outlet 100, and the air guide plate 2 is provided at the air outlet 100 and can rotate along the rotation axis; in the axial direction of the rotation axis, the motor 4 and the shaft kit 3 are respectively installed on the opposite sides of the air outlet 100, which are also the left and right sides of the air conditioner.
[0043] See also Figure 1 and Figure 2 , combined with Figure 4 and Figure 5 The top cover 1 includes a wall body 11, a mounting hole 110 is provided on the wall body 11, and the shaft sleeve 3 is installed at the mounting hole 110. Figure 3 and Figure 6 The first axial end 201 of the air guide plate 2 is connected to the motor 4 , and the second axial end 202 of the air guide plate 2 is provided with a rotating shaft 22 , and the rotating shaft 22 is inserted into the shaft kit 3 .
[0044] See also Figure 7 and Figure 8 The shaft kit 3 is made of elastic material in one piece, and includes a peripheral wall 31, an end 32, a retaining ring 37 and a snap-fit protrusion 38. The peripheral wall 31 is provided with a first protrusion structure 33 and a first recessed structure 34, and the end 32 is provided with a second protrusion structure 35 and a second recessed structure 36.
[0045] The peripheral wall 31 is arranged around the axis 300 of the shaft sleeve 3, and the inner periphery of the peripheral wall 31 forms an axial hole 30. In the axial direction of the shaft sleeve 3, an entrance 301 of the axial hole 30 is formed on one axial end of the peripheral wall 31, and the end 32 is connected to the other axial end of the peripheral wall 31 and blocks the axial hole 30 from the axial direction.
[0046] Recombination Fig. 9 In this embodiment, the first protrusion structure 33 is a protrusion, which protrudes from the inner circumferential surface 312 of the peripheral wall 31 toward the axis 300. The first protrusion structure 33 extends in the axial direction of the axis 300 into a long strip shape, and 15 first protrusion structures 33 are evenly arranged at intervals along the circumference of the axis 300, and the outer surface of the first protrusion structure 33 is an arc surface. In addition, the end of each first protrusion structure 33 facing the inlet 301 is provided with a rounded corner.
[0047] Recombination Fig.10In this embodiment, the first concave structure 34 is a groove, and the first concave structure 34 is concave from the outer peripheral surface 311 of the peripheral wall 31 toward the axis 300. The first concave structure 34 extends along the axial direction of the axis 300 to form a long shape. A plurality of first concave structures 34 are evenly arranged at intervals along the axial direction of the axis 300, and the number of the first concave structures 34 is equal to the number of the first convex structures 33. Each first concave structure 34 is arranged opposite to a corresponding first convex structure 33 in the radial direction of the axis 300. In addition, the inner contour of the first concave structure 34 matches the outer contour of the first convex structure 33, that is, the outer surface of the first convex structure 33 is an arc surface and the inner surface of the first concave structure 34 is also an arc surface.
[0048] See also Figure 8 and Fig.10 The second protruding structure 35 is in a spherical crown shape and a hemispherical shape, and the center of the second protruding structure 35 is located on the axis 300. The second protruding structure 35 protrudes from the inner side of the end 32 toward the shaft hole 30 along the axial direction of the axis 300. The second recessed structure 36 is formed relative to the second protruding structure 35. The second recessed structure 36 is located on the outer side of the end 32 facing away from the shaft hole 30. The inner contour of the second recessed structure 36 matches the outer contour of the second protruding structure 35, so the second recessed structure 36 is in a spherical socket shape.
[0049] See also Figure 7 and Figure 8 The retaining ring 37 and the engaging protrusion 38 constitute the axial engaging structure of the utility model. The retaining ring 37 is arranged on the outer peripheral edge of the entrance 301 of the shaft hole 30. Figure 8 It can be seen from the radial cross section that the retaining ring 37 is bent and forms an annular engaging position 370 that is open in the axial direction.
[0050] See also Figure 7 and Fig.10 The engaging protrusion 38 protrudes from the outer peripheral surface 311 of the peripheral wall 31, and a gap 380 is formed between the retaining ring 37 and the engaging protrusion 38 in the axial direction of the axis 300. In addition, the engaging protrusion 38 is provided with a guide inclined surface on the side facing away from the gap 380. Fig.10 As shown, in this embodiment, three engaging protrusions 38 are evenly arranged along the circumference of the axis 300 .
[0051] See also Fig.11 Combined with Figure 4 and Figure 5, the shaft sleeve 3 is inserted into the mounting hole 110 of the wall body 11, the retaining ring 37 and the engaging protrusion 38 are respectively located on both sides of the thickness of the wall body 11, and the wall body 11 is limited in the interval 380, so that the shaft sleeve 3 will be engaged with the wall body 11 to prevent loosening, so the engaging structure and the wall body 11 are axially limited. In addition, the wall body 11 is provided with a flange 111 at the edge of the mounting hole 110, and the flange 111 is axially engaged with the engaging position 370, so that the axis 300 of the shaft sleeve 3 can be further stabilized at the center position of the mounting hole 110.
[0052] See also Fig.12 Combined with Figure 6 and Fig. 9 The rotating shaft 22 of the air guide plate 2 is inserted into the shaft hole 30 from the inlet 301 , the outer periphery 221 of the rotating shaft 22 abuts against the plurality of first protrusion structures 33 , and the axial end 222 of the rotating shaft 22 abuts against the second protrusion structure 35 .
[0053] The diameter of the inscribed circle of the plurality of first protrusion structures 33 is D1, and the outer diameter of the rotating shaft 22 is D2. In this embodiment, D1 and D2 should be set according to the following rule: -1mm≤D1-D2≤-0.5mm.
[0054] Among them, the diameter of the first protrusion structure 33 is D3, the diameter of the second protrusion structure 35 is D4, the length of the rotating shaft 22 is L1, and the axial distance between the root of the rotating shaft 22 and the protrusion root of the second protrusion structure 35 on the end 32 is L2. In this embodiment, it is set according to the following rules: 1mm≤D3≤2mm, -1mm≤L2-L1-D4≤-0.5mm.
[0055] Under this setting, the first protrusion structure 33 stabilizes the radial position of the rotating shaft 22 and solves the problem of up and down, front and back shaking, while the second protrusion structure 35 abuts the end surface of the rotating shaft 22 and the shaft of the motor 4 to clamp the air guide plate 2 from opposite sides, thereby solving the problem of the air guide plate 2 shaking left and right and preventing it from falling off. In addition, due to the setting of the first recessed structure 34, the first protrusion structure 33 has good deformation ability. Similarly, the setting of the second recessed structure 36 makes the second protrusion structure 35 have good deformation ability. In addition, the first protrusion structure 33 and the second protrusion structure 35 both adopt an arc surface design. With good deformation ability and smaller contact surface, even if an interference fit is used to stabilize the radial and axial position of the rotating shaft 22, it will not generate excessive friction to hinder rotation, and can also produce a good buffering effect.
[0056] In other embodiments, one first protrusion structure may be provided.
[0057] In other embodiments, the first protrusion structure may be configured as a point, and a plurality of first protrusion structures may be arranged along the circumferential direction and / or along the axial direction.
[0058] In other embodiments, the second protrusion structure can be configured to be cylindrical, cubic, truncated cone, or conical.
[0059] In other embodiments, the inner contour of the first concave structure does not match the outer contour of the first convex structure, and / or the inner contour of the second concave structure does not match the outer contour of the second convex structure. For example, the outer contour of the first convex structure is semi-cylindrical, while the inner contour of the first concave structure is square groove-shaped.
[0060] In other embodiments, the end portion does not cover the shaft hole. For example, the end portion may be configured as a structure with a hole.
[0061] In other embodiments, the peripheral wall may not have a cylindrical contour, but it is necessary to ensure that the inscribed geometric shape of the multiple first protrusion structures arranged thereon is a circle.
[0062] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. The shaft set of the air guide plate is made of elastic material, the shaft set comprises a peripheral wall, the inner periphery of the peripheral wall forms a shaft hole, and the outer periphery of the peripheral wall is provided with a clamping structure; Features: The inner periphery of the peripheral wall is provided with a first protruding structure protruding toward the shaft hole, and the outer periphery of the peripheral wall is provided with a first concave structure corresponding to the first protruding structure; The shaft sleeve also includes an axial end portion, which is connected to the peripheral wall and blocks the shaft hole from the axial direction. A second protrusion structure protruding toward the shaft hole is arranged on the inner side of the end portion, and a second recessed structure corresponding to the second protrusion structure is arranged on the outer side of the end portion.
2. The shaft kit of the air guide plate according to claim 1, characterized in that: A plurality of the first protrusion structures are arranged along the circumference of the peripheral wall.
3. The shaft assembly of the air guide plate according to claim 1, characterized in that: The outer surface of the first protruding structure is an arc surface. In the axial cross section, the outer surface of the first protruding structure forms an arc line.
4. The shaft assembly of the air guide plate according to claim 1, characterized in that: The first protrusion structure extends along the axial direction in a strip shape.
5. The shaft assembly of the air guide plate according to claim 1, characterized in that: The second protruding structure is in a spherical crown shape.
6. The shaft assembly of the air guide plate according to claim 5, characterized in that: The spherical center of the second protrusion structure is located on the axial center of the peripheral wall.
7. The shaft assembly of the air guide plate according to any one of claims 1 to 6, characterized in that: The first protrusion structure protrudes along the radial direction of the peripheral wall toward the axis of the peripheral wall; and / or, The second protruding structure protrudes along the axial direction.
8. The shaft assembly of the air guide plate according to any one of claims 1 to 6, characterized in that: The inner contour of the first concave structure matches the outer contour of the first convex structure, and / or the inner contour of the second concave structure matches the outer contour of the second convex structure.
9. An air guide assembly, comprising an air outlet component, an air guide plate, a shaft kit and a driving unit, wherein the air outlet component is provided with an air outlet, the driving unit is fixedly provided on the air outlet component, the air guide plate is provided at the air outlet, a first axial end of the air guide plate is connected to the driving unit, a rotating shaft is provided at a second axial end of the air guide plate, the air outlet component comprises a wall body, and a mounting hole is provided on the wall body; Features: The shaft kit adopts the shaft kit according to any one of claims 1 to 8 above; The shaft sleeve is installed in the mounting hole, and the engaging structure is limitedly matched with the wall body along the axial direction; The rotating shaft is inserted into the shaft hole, the first protrusion structure abuts against the rotating shaft to limit the rotating shaft from the outer periphery of the rotating shaft, and the second protrusion structure abuts against the rotating shaft to limit the rotating shaft from the axial direction of the rotating shaft.
10. The air guide assembly according to claim 9, characterized in that: Along the axial direction of the peripheral wall, the clamping structure includes a retaining ring and a clamping protrusion that are arranged at intervals, and the wall body is limited between the retaining ring and the clamping protrusion.
11. An air conditioner, characterized in that Includes the wind guide assembly described in claim 9 or 10 above.