Rotating shaft, panel assembly and air conditioner

Abstract

The rotating shaft is used for the air conditioner, the air conditioner comprises a panel and a face frame, one axial end of the rotating shaft is arranged on the panel and rotationally connected with the face frame, the rotating shaft comprises a shaft body, the shaft body is a hollow shaft, and a cavity extending in the axial direction of the shaft body is formed in the shaft body. According to the rotating shaft, the shaft body is arranged to be the hollow shaft, the cavity extending in the axial direction of the shaft body is formed in the shaft body, the structural strength of the rotating shaft can be guaranteed, meanwhile, materials of the rotating shaft are saved, cost is reduced, in addition, the shrinkage problem caused by stress concentration on the back face of the rotating shaft can be solved, and the service life of the rotating shaft is prolonged. The surface quality of the rotating shaft is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air processing equipment, in particular to a rotating shaft, a panel component and an air conditioner. Background Art

[0002] In the related art, the panel and face frame of the air conditioner are connected by two rotating shafts, which makes it easy to open the panel and clean the filter. However, the existing rotating shafts are prone to whitening or even breaking due to impact during manufacturing, transportation and handling. At the same time, due to process limitations during injection molding, defects such as shrinkage are prone to occur. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a rotating shaft, which can save materials and alleviate the shrinkage problem caused by stress concentration on the back side of the rotating shaft.

[0004] The utility model also provides a panel assembly, which comprises the above-mentioned rotating shaft.

[0005] The utility model also provides an air conditioner, which comprises the above-mentioned panel assembly.

[0006] The rotating shaft according to the embodiment of the utility model is used for an air conditioner, which includes a panel and a face frame. One axial end of the rotating shaft is arranged on the panel and is rotatably connected to the face frame. The rotating shaft includes: a shaft body, which is a hollow shaft, and has a cavity extending along the axial direction of the shaft body.

[0007] According to the rotating shaft of the embodiment of the utility model, the shaft body is set as a hollow shaft, and the interior of the shaft body has a cavity extending in the axial direction of the shaft body. This can save the material of the rotating shaft while ensuring the structural strength of the rotating shaft, thereby reducing costs. In addition, it can also alleviate the shrinkage problem caused by stress concentration on the back side of the rotating shaft and improve the surface quality of the rotating shaft.

[0008] According to some embodiments of the present invention, the outer diameter of the shaft body gradually decreases in the direction from the fixed end to the free end of the shaft body.

[0009] According to some embodiments of the present invention, the outer diameter of the fixed end of the shaft body is 6mm-10mm; and / or the outer diameter of the free end of the shaft body is 4.5mm-6.5mmmm.

[0010] According to some embodiments of the present invention, the inner diameter of the shaft body gradually increases in the direction from the fixed end to the free end of the shaft body.

[0011] According to some embodiments of the present invention, the inner diameter of the fixed end of the shaft body is 2.5 mm-3.5 mm; and / or the inner diameter of the free end of the shaft body is 4 mm-5 mm.

[0012] According to some embodiments of the present invention, the axial length of the shaft body is 8mm-12mm.

[0013] The panel assembly according to the embodiment of the utility model includes: a panel; and the above-mentioned rotating shaft, wherein the rotating shaft is fixed on the panel.

[0014] According to the panel assembly of the embodiment of the utility model, the above-mentioned rotating shaft is provided, and the shaft body is set as a hollow shaft. The interior of the shaft body has a cavity extending along the axial direction of the shaft body. While ensuring the structural strength of the rotating shaft, the material of the rotating shaft can be saved, thereby reducing costs. In addition, the shrinkage problem caused by stress concentration on the back side of the rotating shaft can be alleviated, and the surface quality of the rotating shaft can be improved.

[0015] In some embodiments of the present invention, the panel includes: a panel body; a pivot arm, one end of the pivot arm is connected to the panel body, and the rotating shaft is arranged at an end of the pivot arm away from the panel body.

[0016] In some embodiments of the present invention, the panel assembly is an integrated piece.

[0017] The air conditioner according to the embodiment of the utility model comprises: a face frame; the above-mentioned panel assembly, wherein the rotating shaft is rotatably connected to the face frame.

[0018] According to the air conditioner of the embodiment of the utility model, by setting the above-mentioned panel assembly, the panel assembly includes the above-mentioned rotating shaft, and the shaft body is set as a hollow shaft. The interior of the shaft body has a cavity extending along the axial direction of the shaft body. While ensuring the structural strength of the rotating shaft, the material of the rotating shaft can be saved, thereby reducing costs. In addition, the shrinkage problem caused by stress concentration on the back side of the rotating shaft can be alleviated, and the surface quality of the rotating shaft can be improved.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a three-dimensional view of a panel assembly according to an embodiment of the utility model, wherein only a portion of the panel body is shown;

[0022] Figure 2 yes Figure 1 Front view of the mid-panel assembly;

[0023] Figure 3 is along Figure 2 Sectional view along line AA;

[0024] Figure 4 It is a distribution diagram of shear stress generated by shaft torsion according to an embodiment of the utility model.

[0025] Reference numerals:

[0026] 100. Panel assembly;

[0027] 10. rotating shaft; 1. shaft body; 11. cavity;

[0028] 20. Panel; 21. Panel body; 22. Pivot arm; 23. Reinforcing rib. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The rotating shaft 10 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0033] The rotating shaft 10 is used in an air conditioner, which includes a face frame and a panel 20. The panel 20 is rotatably arranged on the face frame, so that the panel 20 can be opened to clean the filter. One axial end of the rotating shaft 10 is arranged on the panel 20 and is rotatably connected to the face frame. It can be understood that the rotating shaft 10 is fixedly connected to the panel 20, the rotating shaft 10 is rotatably connected to the face frame, the panel 20 and the face frame are rotatably connected through the rotating shaft 10, and the face frame can be provided with an axial hole that matches the rotating shaft 10. A rotating shaft 10 can be respectively provided at opposite ends of the panel 20 for rotatably connecting with the face frame.

[0034] Specifically, Figure 1-Figure 3 As shown, the rotating shaft 10 includes a shaft body 1, which is a hollow shaft. The shaft body 1 has a cavity 11 extending along the axial direction of the shaft body 1. Under the premise of ensuring strength, materials can be saved to a certain extent, and the shrinkage problem caused by stress concentration on the back side of the rotating shaft 10 can be alleviated.

[0035] Reference Figure 4 The figure shows a schematic diagram of the torsional shear stress generated by the rotating shaft 10 during torsional deformation, which corresponds to the situation when the user cleans the filter and the panel 20 is opened and closed by the rotating shaft 10. The expression for the torsional shear stress of a circular shaft is: τ = (T*r) / J. Among them, τ is the torsional shear stress on the circular shaft, T is the torque, r is the radius of the circular shaft, and J is the polar moment, which is a physical quantity that describes the geometric shape and size of the shaft and is related to the cross-sectional area, radius, etc. of the circular shaft. It can be seen from the expression that the torsional shear stress on the rotating shaft 10 is related to the position and is linearly distributed along the radius, with a value of 0 at the center and a maximum value at the edge. Due to the non-uniform distribution of torsional shear stress, the torsional shear stress at the center of the material is small, and designing it into a hollow shaft structure helps to better utilize the material.

[0036] According to the rotating shaft 10 of the embodiment of the utility model, by setting the shaft body 1 as a hollow shaft, the interior of the shaft body 1 has a cavity 11 extending along the axial direction of the shaft body 1, which can save the material of the rotating shaft 10 while ensuring the structural strength of the rotating shaft 10, thereby reducing the cost. In addition, it can also alleviate the shrinkage problem caused by stress concentration on the back side of the rotating shaft 10 and improve the surface quality of the rotating shaft 10.

[0037] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the outer diameter of the shaft body 1 gradually decreases in the direction from the fixed end to the free end of the shaft body 1. The rotating shaft 10 can be an injection molded part, so that the outer diameter of the shaft body 1 gradually decreases in the direction from the fixed end to the free end of the shaft body 1, and a certain draft angle is formed on the outer wall surface of the rotating shaft 10, which is convenient for the demolding process of the rotating shaft 10 during the manufacturing process, and is convenient for the processing and manufacturing of the rotating shaft 10. Among them, the fixed end of the shaft body 1 is the end of the shaft body 1 connected to the panel 20, and the free end of the shaft body 1 is the end of the shaft body 1 away from the panel 20.

[0038] Furthermore, the outer diameter of the fixed end of the shaft body 1 is 6mm-10mm, for example, the outer diameter of the fixed end of the shaft body 1 can be 6mm, 7mm, 8mm, 9mm or 10mm; the outer diameter of the free end of the shaft body 1 is 4.5mm-6.5mmmm, for example, the outer diameter of the free end of the shaft body 1 can be 4.6mm, 4.7mm, 4.8mm, 4.9mm, 5mm, 5.1mm, 5.2mm, 5.3mm, 5.4mm or 5.5mm. In this way, the outer diameter of the rotating shaft 10, especially the outer diameter of the root of the rotating shaft 10, i.e., the fixed end, can be increased relative to the prior art, thereby improving the structural strength of the rotating shaft 10 and preventing the rotating shaft 10 from breaking during the automated assembly of the factory production line and the transportation and handling process after the machine is offline.

[0039] In the related art, the rotating shaft is a solid shaft with an outer diameter of 5.4 mm at the fixed end and 5.1 mm at the free end. During the manufacturing, transportation and handling processes, the shaft is prone to whitening or even breaking due to impact. At the same time, due to process limitations during injection molding, the solid shaft is prone to defects such as shrinkage.

[0040] In the present application, the outer diameter of the rotating shaft 10 is increased and the rotating shaft 10 is set as a hollow shaft, which can save materials to a certain extent while ensuring strength and alleviate the shrinkage problem caused by stress concentration on the back side of the rotating shaft 10.

[0041] In some embodiments of the utility model, the inner diameter of the shaft body 1 gradually increases in the direction from the fixed end to the free end of the shaft body 1. The rotating shaft 10 can be an injection molded part, so that the inner diameter of the shaft body 1 gradually increases in the direction from the fixed end to the free end of the shaft body 1, and a certain draft angle is formed on the inner wall surface of the rotating shaft 10, which is convenient for the demolding process of the rotating shaft 10 during the manufacturing process, and is convenient for the processing and manufacturing of the rotating shaft 10.

[0042] Further, the inner diameter of the fixed end of the shaft body 1 is 2.5mm-3.5mm, for example, the inner diameter of the fixed end of the shaft body 1 can be 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm or 3.5mm; the inner diameter of the free end of the shaft body 1 is 4mm-5mm, for example, the inner diameter of the free end of the shaft body 1 can be 4mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm or 5mm. In this way, the cross-sectional area of ​​the shaft 10 can be increased on the basis of forming the cavity 11 and saving materials, thereby increasing the structural strength of the shaft 10 and preventing the shaft 10 from turning white or breaking easily when subjected to impact force.

[0043] The shear deformation of the rotating shaft 10 when subjected to severe impact corresponds to the impact received during the assembly panel 20, transportation and handling of the finished product. The shear stress expression of the rotating shaft 10 when subjected to impact is: τ=F / A. Among them, τ is the shear stress generated by the rotating shaft 10 when subjected to impact, F is the impact force received, and A is the cross-sectional area of ​​the rotating shaft 10. It can be seen from the expression that the shear stress received by the rotating shaft 10 is evenly distributed on the cross section, and the larger the cross-sectional area, the smaller the stress under the same impact force. Taking the root of the rotating shaft 10, which is prone to whitening or breaking when subjected to impact, as an example, the outer diameter of the root of the existing solid rotating shaft is 5.4mm, and the cross-sectional area of ​​the root of the solid rotating shaft is 22.9mm2. Taking the outer diameter of the root of the hollow rotating shaft 10 proposed in this application as 8mm and the inner diameter as 3mm, the cross-sectional area of ​​the root and the fixed end of the rotating shaft 10 is 43.2mm2. It can be seen that the shear stress generated by the rotating shaft 10 structure proposed in this application when subjected to impact is smaller.

[0044] In some embodiments of the utility model, the axial length of the shaft body 1 is 8mm-12mm, for example, the axial length of the shaft body 1 can be 8mm, 9mm, 10mm, 11mm or 12mm. This can prevent the shaft 10 from being too short or too long, facilitate the cooperation between the shaft 10 and the face frame, realize reliable rotation between the panel 20 and the face frame, save materials and reduce costs.

[0045] The panel assembly 100 according to an embodiment of the present invention is described below.

[0046] The panel assembly 100 according to the embodiment of the present invention includes a panel 20 and the aforementioned rotating shaft 10 .

[0047] The rotating shaft 10 is fixed on the panel 20. The rotating shaft 10 can be integrally formed with the panel 20. The rotating shaft 10 and the panel 20 can also be separate processed parts. The rotating shaft 10 and the panel 20 are connected by connecting parts such as fasteners.

[0048] According to the panel assembly 100 of the embodiment of the utility model, by setting the above-mentioned rotating shaft 10, the shaft body 1 is set as a hollow shaft, and the interior of the shaft body 1 has a cavity 11 extending along the axial direction of the shaft body 1. While ensuring the structural strength of the rotating shaft 10, the material of the rotating shaft 10 can be saved, thereby reducing the cost. In addition, the shrinkage problem caused by stress concentration on the back side of the rotating shaft 10 can also be alleviated, and the surface quality of the rotating shaft 10 can be improved.

[0049] Furthermore, if Figure 1 As shown, the panel 20 includes a panel body 21 and a pivot arm 22, one end of the pivot arm 22 is connected to the panel body 21, and the shaft 10 is arranged at the end of the pivot arm 22 away from the panel body 21. This facilitates the rotation between the panel 20 and the face frame, and allows the panel 20 to open at a larger angle, which is convenient for disassembling and cleaning the filter.

[0050] In addition, when the panel 20 is closed, the panel 20 is connected to the front surface of the face frame, and a clearance opening is provided on the face frame at a position corresponding to the pivot arm 22. When the panel 20 is closed, at least a portion of the pivot arm 22 extends into the clearance opening, thereby ensuring that the panel 20 can better fit the front side of the face frame.

[0051] Since the panel body 21 is relatively large relative to the rotating shaft 10, Figure 1 and Figure 2 Only part of the structure of the panel body 21 is shown. The panel body 21 is generally rectangular. One end of the panel body 21 in the width direction generally has two pivot arms 22. The two pivot arms 22 are respectively located at the two ends of the length direction of the panel body 21. Correspondingly, there are two rotating shafts 10, and the two rotating shafts 10 are respectively connected to the two pivot arms 22, so as to realize the fixation of the panel body 21 and the face frame at both ends of the length direction of the panel 20.

[0052] Of course, the present invention is not limited thereto, and there may be more pivot arms 22 , and the plurality of pivot arms 22 are spaced apart in the length direction of the panel body 21 , and the rotation shafts 10 are a plurality of pivot arms 22 corresponding one to one.

[0053] In some embodiments of the present invention, a reinforcing rib 23 is provided between the pivot arm 22 and the panel body 21. The reinforcing rib 23 is located on one side of the thickness direction of the pivot arm 22 and is connected to the panel body 21 and the pivot arm 22, thereby improving the connection process between the pivot arm 22 and the panel body 21.

[0054] In some embodiments of the present invention, Figure 1 As shown, the panel assembly 100 is an integrated piece, thereby simplifying the assembly process of the panel assembly 100 and improving the assembly efficiency.

[0055] The following describes an air conditioner according to an embodiment of the utility model, wherein the air conditioner may be a wall-mounted air conditioner.

[0056] The air conditioner according to the embodiment of the utility model comprises a face frame and the above-mentioned panel assembly 100. The rotating shaft 10 is rotatably connected with the face frame, so that the panel 20 can be opened to disassemble and tilt the filter.

[0057] According to the air conditioner of the embodiment of the utility model, by setting the above-mentioned panel assembly 100, the panel assembly 100 includes the above-mentioned rotating shaft 10, and the shaft body 1 is set as a hollow shaft. The interior of the shaft body 1 has a cavity 11 extending along the axial direction of the shaft body 1. While ensuring the structural strength of the rotating shaft 10, the material of the rotating shaft 10 can be saved, thereby reducing the cost. In addition, the shrinkage problem caused by stress concentration on the back side of the rotating shaft 10 can also be alleviated, and the surface quality of the rotating shaft 10 can be improved.

[0058] Other structures and operations of the air conditioner according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A rotating shaft, characterized in that: Used for an air conditioner, the air conditioner comprises a panel and a face frame, one axial end of the rotating shaft is arranged on the panel and is rotatably connected to the face frame, and the rotating shaft comprises: The shaft body is a hollow shaft, and the shaft body has a cavity extending along the axial direction of the shaft body.

2. The rotating shaft according to claim 1, characterized in that: In a direction from the fixed end to the free end of the shaft body, the outer diameter of the shaft body gradually decreases.

3. The rotating shaft according to claim 1 or 2, characterized in that: The outer diameter of the fixed end of the shaft body is 6mm-10mm; And / or, the outer diameter of the free end of the shaft body is 4.5mm-6.5mmmm.

4. The rotating shaft according to claim 1, characterized in that: In a direction from the fixed end to the free end of the shaft body, the inner diameter of the shaft body gradually increases.

5. The rotating shaft according to claim 1 or 4, characterized in that: The inner diameter of the fixed end of the shaft body is 2.5mm-3.5mm; And / or, the inner diameter of the free end of the shaft body is 4mm-5mm.

6. The rotating shaft according to claim 1, characterized in that: The axial length of the shaft body is 8mm-12mm.

7. A panel assembly, characterized in that: include: panel; The rotating shaft according to any one of claims 1-6, wherein the rotating shaft is fixed on the panel.

8. The panel assembly according to claim 7, characterized in that: The panel comprises: Panel body; A pivot arm, one end of which is connected to the panel body, and the rotating shaft is arranged at the end of the pivot arm which is away from the panel body.

9. The panel assembly according to claim 7, characterized in that: The panel assembly is a one-piece piece.

10. An air conditioner, characterized in that: include: Face frame; According to the panel assembly according to any one of claims 7 to 9, the rotating shaft is rotatably connected to the face frame.

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