Connecting assembly and air conditioner having the same

Abstract

The present invention provides a connection assembly and an air conditioner having the same. The connection assembly includes a first connection member, the first end of the first connection member is a hollow structure, a first protrusion is arranged in the first end of the first connection member, there are multiple first protrusions, and the end face of each first protrusion is provided with a first helical surface; the end of the first end of the second connection member is provided with a second protrusion, there are multiple second protrusions, the multiple second protrusions are arranged one-to-one with the multiple first protrusions, and the end face of each second protrusion is provided with a second helical surface that matches the first helical surface, the multiple second protrusions are arranged at intervals along the circumference of the second connection member, and a connection column is arranged at the end of the second connection member, the connection column is located in the space surrounded by the multiple second protrusions, and the end of the connection column extends to the space surrounded by the multiple first protrusions to match the first protrusion. Such an arrangement effectively avoids the vibration generated by the fan blades and improves the practicality and reliability of the connection assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and in particular to a connecting component and an air conditioner having the same. Background Art

[0002] Air conditioners are a common household appliance, and their key components are the air duct system. Traditional air conditioners have air duct and water duct systems that are integrated with the bottom shell as a whole. As basic parts, they are first assembled and fixed. If they need to be disassembled and cleaned, professionals are required to disassemble the various parts of the air conditioner and take them out for cleaning, which is extremely inconvenient.

[0003] During the long-term use of air conditioners, dust and other debris entering the air duct and waterway from the air inlet will cause serious pollution to the entire air duct and waterway system. If not cleaned in time, it will become a pollution source and harm the environment during the operation of the air conditioner, which is of great significance to the health of users. Split wall-mounted air conditioners are commonly used household appliances, and their cleaning has long been a major problem that has troubled customers and designers. The cross-flow blades, the moving parts of the air conditioner, will cause bacteria to grow and dirt to accumulate after long-term movement, becoming a new source of harm to human health.

[0004] Disassembly and cleaning has become a focus of the industry, because the motor is a live component, and it is very important to ensure human safety during cleaning. There are solutions in the prior art to separate the fan blades from the motor, but this solution still has certain defects when used. Due to assembly process limitations, clearance fit is required, and the smaller the clearance, the higher the requirements for the processing technology, which leads to increased costs. Due to the existence of assembly clearance, the fan blades in the prior art will vibrate during operation. Summary of the invention

[0005] The main purpose of the present invention is to provide a connecting assembly and an air conditioner having the same, so as to solve the problem of vibration of fan blades during operation in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a connection assembly is provided, comprising: a first connection member, the first end of the first connection member is a hollow structure, a first protrusion is arranged in the first end of the first connection member, there are multiple first protrusions, and a first helical surface is arranged on the end surface of each first protrusion; a second connection member, the end of the first end of the second connection member is provided with a second protrusion, there are multiple second protrusions, the multiple second protrusions are arranged one-to-one with the multiple first protrusions, and the end surface of each second protrusion is provided with a second helical surface matching with the first helical surface, the multiple second protrusions are arranged at intervals along the circumference of the second connection member, and a connecting column is arranged at the end of the second connection member, the connecting column is located in the space surrounded by the multiple second protrusions, and the end of the connecting column extends to the space surrounded by the multiple first protrusions to match with the first protrusion; wherein, one of the second ends of the first connection member and the second connection member can be used to connect with the fan blade shaft of the fan blade, and the second end of the other of the first connection member and the second connection member can be used to connect with the output shaft of the driving part that drives the fan blade to rotate.

[0007] Furthermore, the surfaces of the plurality of first protrusions facing the connecting column are first conical surfaces, and the outer surface of the connecting column is a second conical surface matching the first conical surface.

[0008] Furthermore, a plurality of first protrusions are arranged at intervals along the circumference of the first connecting member, and at least one side surface of the first protrusion along the circumferential direction of the first connecting member forms a first force-bearing surface, and at least one side surface of the second protrusion along the axial direction of the second connecting member forms a second force-bearing surface that matches the first force-bearing surface.

[0009] Furthermore, a through hole is provided on the side wall of the first end of the first connecting member, and the long side direction of the through hole extends along the axial direction of the first connecting member.

[0010] Furthermore, there are a plurality of through holes, and the plurality of through holes are arranged at intervals along the circumferential direction of the first connecting member.

[0011] Furthermore, a protrusion is disposed on the outer surfaces of the plurality of second protrusions. There are a plurality of protrusions, and the plurality of protrusions are disposed at intervals along the circumference of the second protrusions to form an annular protrusion.

[0012] Further, some of the plurality of protrusions are arranged at intervals along the axial direction of the second protrusion to form axial protrusions.

[0013] Furthermore, a plurality of accommodating grooves are disposed on the outer surfaces of the plurality of second protrusions, the plurality of accommodating grooves are spaced apart along the circumferential direction and / or axial direction of the second protrusions, and rolling elements are disposed in the plurality of accommodating grooves.

[0014] Furthermore, the rolling element is a steel ball.

[0015] According to another aspect of the present invention, an air conditioner is provided, comprising a connecting assembly, wherein the connecting assembly is the above-mentioned connecting assembly.

[0016] By applying the technical solution of the present invention and adopting a connecting component of this structure, the first protrusion of the first connecting member is matched with the second protrusion of the second connecting member, and the connecting column of the second connecting member is extended into the first connecting member to cooperate with the first protrusion. This arrangement effectively avoids the vibration of the fan blade when the driving part drives the fan blade to rotate through the connecting component, thereby improving the practicality and reliability of the connecting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of an exploded structure of a first embodiment of a connecting assembly according to the present invention is shown;

[0019] Figure 2 A schematic structural diagram of an embodiment of a first connecting member according to the present invention is shown;

[0020] Figure 3 A schematic structural diagram of an embodiment of a second connecting member according to the present invention is shown;

[0021] Figure 4 A schematic diagram of an exploded structure of a second embodiment of a connecting assembly according to the present invention is shown.

[0022] The above drawings include the following reference numerals:

[0023] 10. first connecting member; 11. first protrusion; 111. first conical surface; 112. first force-bearing surface; 12. first spiral surface; 13. through hole;

[0024] 20. second connecting member; 21. second protrusion; 211. second force-bearing surface; 22. second spiral surface; 23. connecting column; 231. second conical surface;

[0025] 30. Bump. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0030] Combination Figures 1 to 4 As shown, according to an embodiment of the present invention, a connection assembly is provided.

[0031] Specifically, Figure 1As shown, the connection assembly includes a first connection member 10 and a second connection member 20. The first end of the first connection member 10 is a hollow structure, and a first protrusion 11 is arranged in the first end of the first connection member 10. There are multiple first protrusions 11, and a first helical surface 12 is arranged on the end surface of each first protrusion 11. A second protrusion 21 is arranged at the end of the first end of the second connection member 20. There are multiple second protrusions 21, and the multiple second protrusions 21 are arranged one-to-one with the multiple first protrusions 11. The end surface of each second protrusion 21 is provided with a second helical surface 22 that matches the first helical surface 12. The multiple second protrusions 21 are arranged at intervals along the circumference of the second connection member 20. A connecting column 23 is arranged at the end of the second connection member 20. The connecting column 23 is located in the space surrounded by the multiple second protrusions 21, and the end of the connecting column 23 extends to the space surrounded by the multiple first protrusions 11 to match the first protrusion 11. Among them, a second end of the first connecting member 10 and the second connecting member 20 can be used to connect to the blade shaft of the fan blade, and the second end of the other one of the first connecting member 10 and the second connecting member 20 can be used to connect to the output shaft of the driving part that drives the fan blade to rotate.

[0032] In this embodiment, the connection assembly of this structure is adopted, so that the first protrusion of the first connection member matches with the second protrusion of the second connection member, and the connection column of the second connection member is extended into the first connection member to match with the first protrusion. This arrangement effectively avoids the vibration of the fan blade when the driving part drives the fan blade to rotate through the connection assembly, thereby improving the practicality and reliability of the connection assembly. Among them, the connection member connected to the fan blade shaft in the first connection member 10 and the second connection member 20 includes a part of the fan blade shaft formed by the connection member, that is, the connection member is arranged integrally with the fan blade shaft.

[0033] like Figure 2 As shown, the surfaces of the first bumps 11 facing the connecting pillars 23 are configured as first tapered surfaces 111. Figure 4 As shown, the outer surface of the connecting column 23 is a second tapered surface 231 that matches the first tapered surface 111. This arrangement can improve the connection reliability between the first connecting member and the second connecting member.

[0034] like Figure 2 As shown, a plurality of first protrusions 11 are arranged at intervals along the circumference of the first connecting member 10, and at least one side surface of the first protrusion 11 along the circumferential direction of the first connecting member 10 forms a first force-bearing surface 112. Figure 3 As shown, at least one side surface of the second protrusion 21 along the axial direction of the second connecting member 20 is formed with a second force-bearing surface 211 that matches the first force-bearing surface 112. In this way, under the interaction of the two force-bearing surfaces, the transmission of driving force can be achieved, and then the function of driving the fan blades through the connecting member is achieved.

[0035] like Figure 1 , Figure 2 and Figure 4 As shown, a through hole 13 is provided on the side wall of the first end of the first connector 10, and the long side direction of the through hole 13 extends along the axial direction of the first connector 10. This arrangement allows the undercut surface generated by axial demolding to be demolded along the side of the through hole, thereby avoiding the problem of reducing the size of the inner circumferential surface due to the step generated by the parting surface, which affects the assembly. Preferably, there are multiple through holes 13. Multiple through holes 13 are arranged at intervals along the circumference of the first connector 10.

[0036] like Figure 1 and Figure 3 As shown, a plurality of protrusions 30 are provided on the outer surfaces of the second protrusions 21. There are a plurality of protrusions 30, and the plurality of protrusions 30 are arranged at intervals along the circumference of the second protrusion 21 to form an annular protrusion. Such an arrangement can effectively avoid the influence of the step generated by the parting line on the size of the mating surface. At the same time, the protrusion 30 changes the contact form from surface contact to line contact, and changes the clearance fit to an interference fit, so that the first connecting member and the second connecting member fit more closely, thereby avoiding the shaking of the fan blade caused by the assembly gap. Among them, the first connecting member and the second connecting member that is connected to the motor output shaft can be called a motor sleeve, and the one connected to the fan blade shaft can be called a fan blade sleeve.

[0037] Further, some of the plurality of protrusions 30 are arranged at intervals along the axial direction of the second protrusion 21 to form axial protrusions. In this embodiment, the protrusions 30 are arranged in two rows, and the two rows of protrusions can better ensure the coaxiality of the first connector and the second connector.

[0038] According to another embodiment of the present application, multiple accommodating grooves can be provided on the outer surfaces of multiple second protrusions 21, and multiple accommodating grooves are arranged in an array at intervals along the circumference and axial direction of the second protrusions 21, and rolling elements are provided in the multiple accommodating grooves. Such an arrangement can also improve the coaxiality of the first connecting member and the second connecting member. Preferably, the rolling element can be a steel ball.

[0039] The connection assembly in the above embodiment can also be used in the technical field of air conditioner equipment. That is, according to another aspect of the present invention, an air conditioner is provided, comprising a connection assembly, and the connection assembly is the connection assembly in the above embodiment.

[0040] Specifically, in the prior art, the existing fan blade and motor shaft connection mechanism can solve the problem of quick disassembly, but due to the limitation of assembly process, clearance fit is required, and the smaller the fit clearance, the higher the processing requirements, which leads to increased costs. Due to the existence of assembly clearance, the fan blade will vibrate during operation.

[0041] In view of the defects caused by the above technologies, this application provides a new transmission structure, which adds a protrusion on the basis of the original structure, can simply realize the rapid separation of the fan blade and the motor, and at the same time can ensure the stability of the transmission and reduce the noise of the fan blade. At the same time, the optimization of the structure reduces the requirements for the processing technology, thereby reducing costs.

[0042] In response to the defects caused by the above technologies, this structure realizes conical surface matching through the connecting column and the first protrusion, improves the coaxiality of the fan blade and the motor, and ensures the stability of the fan blade operation. This structure can make the air duct components easily disassembled, and ensure smooth operation and reduce the noise of fan blade operation. At the same time, there is no disassembly of live parts, which improves operator safety. The connection component adopts a line-surface matching structure, and a protrusion is added on the basis of the original matching surface, so that the matching gap is smaller and the fan blade runs more smoothly. The quick connection and separation of the fan blade and the motor makes it easy to connect and separate the fan blade and the motor, realizing the disassembly and cleaning of the entire air duct component.

[0043] In this embodiment, the motor sleeve structure schematic diagram is as follows: Figure 3 As shown, the fan blade shaft sleeve structure diagram is as follows Figure 2 As shown, the fan blade side can adopt a connection structure between the fan blade and the shaft sleeve, or the fan blade and the shaft sleeve can be formed in one piece. The fan blade and the motor shaft are matched with a detachable structure: the fan blade and the motor are matched by the spiral surface of the motor shaft sleeve and the fan blade. Through this structure, the fan blade is installed on the bottom shell to form an air duct component, and the motor assembly is installed on the base, and the fan blade is not directly connected to the motor assembly.

[0044] The moving surface of the motor sleeve and the end sleeve of the fan blade are designed into a spiral structure, so that when the moving parts are running, there is an axial force on the matching surface of the fan sleeve and the fan blade. This axial force prevents the fan blade from separating from the motor sleeve and running firmly. Its specific operation is: due to the existence of the spiral structure, when the distance between the motor sleeve and the end sleeve of the fan blade is close to a certain distance, the motor is started to rotate, and the distance between the two is closer and closer under the influence of the spiral structure until they are engaged in place. This structure does not need to be affected by the corresponding position of the motor and the fan blade sleeve, and is fully engaged 360 degrees without dead angles. At the same time, because the motor is always rotating forward, the matching structure of the two is getting tighter and tighter. When the air duct components need to be cleaned, just reverse the fan blade and gently move the fan blade away from the motor to separate the fan blade from the motor. Thereby, the motor assembly is retained alone on the base, and the motor assembly is separated from the air duct system. When cleaning the air duct, the motor assembly is not taken with it to avoid the hidden danger of electric shock to the human body.

[0045] Preferably, the embodiments shown in the figure all have three spiral structures, and other numbers of spiral structures can also meet this installation method. The fan blade and its fixed sleeve can be formed in one piece, or the fan blade and the sleeve can be connected by screws and snaps. The one-piece forming can reduce the installation of parts and components, which can reduce the cost of the whole machine. At the same time, the motor and its fixed sleeve can also be fixed by screws and snaps, and the motor and sleeve structure can be integrated. However, since the existing motors are mature, this modification is relatively large and the cost is relatively high. The sleeve assembly of the fan blade assembly and the sleeve assembly of the motor assembly can also be interchanged, and the motor can also drive the fan blade to rotate. The protrusion of the motor sleeve can also be on the fan blade sleeve, and the realization of the protrusion can also adopt embedded steel balls or other movable designs.

[0046] like Figure 4 In the embodiment shown, the protrusion structure can be removed, the matching clearance of the matching surface can be increased, and a conical surface can be added to one end of the motor sleeve to match the fan blade sleeve through the conical surface. During the operation of the fan blade, an axial pulling force toward the motor end is generated, and the motor sleeve and the fan blade sleeve are radially tightly matched through the conical surface, and the coaxiality of the motor shaft and the fan blade shaft is improved.

[0047] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0048] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present invention.

[0049] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0050] The above description 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 modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A connection assembly, characterized in that: include: A first connecting member (10), wherein the first end of the first connecting member (10) is a hollow structure, a first protrusion (11) is arranged inside the first end of the first connecting member (10), there are a plurality of first protrusions (11), and a first helical surface (12) is arranged on the end surface of each first protrusion (11); a second connecting member (20), wherein a second protrusion (21) is disposed at the end of the first end of the second connecting member (20), the second protrusion (21) being multiple, the multiple second protrusions (21) being disposed one-to-one correspondingly to the multiple first protrusions (11), the end surface of each second protrusion (21) being disposed with a second helical surface (22) matching with the first helical surface (12), the multiple second protrusions (21) being disposed at intervals along the circumference of the second connecting member (20), the end of the second connecting member (20) being disposed with a connecting column (23), the connecting column (23) being located in a space enclosed by the multiple second protrusions (21), the end of the connecting column (23) extending into a space enclosed by the multiple first protrusions (11) to match with the first protrusion (11); The second end of one of the first connecting member (10) and the second connecting member (20) is used to be connected to a blade shaft of a blade, and the second end of the other of the first connecting member (10) and the second connecting member (20) is used to be connected to an output shaft of a driving unit that drives the blade to rotate.

2. The connection assembly according to claim 1, characterized in that: The surfaces of the plurality of first protrusions (11) facing the connecting column (23) are first conical surfaces (111), and the outer surface of the connecting column (23) is a second conical surface (231) matching the first conical surface (111).

3. The connection assembly according to claim 1, characterized in that: A plurality of first protrusions (11) are arranged at intervals along the circumference of the first connecting member (10); at least one side surface of the first protrusion (11) along the circumferential direction of the first connecting member (10) forms a first force-bearing surface (112); and at least one side surface of the second protrusion (21) along the axial direction of the second connecting member (20) forms a second force-bearing surface (211) that matches the first force-bearing surface (112).

4. The connection assembly according to claim 1, characterized in that: A through hole (13) is provided on the side wall of the first end of the first connecting member (10), and the long side direction of the through hole (13) is extended along the axial direction of the first connecting member (10).

5. The connection assembly according to claim 4, characterized in that: There are a plurality of through holes (13), and the plurality of through holes (13) are arranged at intervals along the circumference of the first connecting member (10).

6. The connection assembly according to claim 1, characterized in that: The outer surfaces of the plurality of second convex blocks (21) are each provided with a protrusion (30), the protrusion (30) being multiple, and the plurality of protrusions (30) being arranged at intervals along the circumference of the second convex block (21) to form an annular protrusion.

7. The connection assembly according to claim 6, characterized in that: Some of the protrusions (30) among the plurality of protrusions (30) are arranged at intervals along the axial direction of the second protrusion (21) to form axial protrusions.

8. The connection assembly according to claim 1, characterized in that: The outer surfaces of the plurality of second protrusions (21) are each provided with a plurality of accommodating grooves, the plurality of accommodating grooves are arranged at intervals along the circumferential direction and / or axial direction of the second protrusion (21), and rolling elements are each arranged in the plurality of accommodating grooves.

9. The connection assembly according to claim 8, characterized in that: The rolling element is a steel ball.

10. An air conditioner, comprising a connection assembly, characterized in that: The connection assembly is the connection assembly according to any one of claims 1 to 9.

Images