Coupler and condensate fan
By setting a limiting structure on the outer periphery of the condenser fan coupling, the problem of the coupling's bulky structure is solved, enabling convenient assembly and processing, and improving connection strength and service life.
Patent Information
- Application Number
- CN202520548012.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-26
AI Technical Summary
The couplings in existing condenser fans are bulky and inconvenient to assemble and process because the limiting structure is located in the middle.
Design a coupling including a coupling body and multiple limiting structures. The limiting structures are located on the outer periphery of the coupling body and protrude on the same side. They are connected to the output shaft of the power motor through the coupling body. The limiting structures are inserted into the fan blade assembly to reduce the size of the coupling.
It enables convenient assembly and processing of the coupling, improves connection strength, extends service life, and reduces weight through aluminum structure, prevents rust, and maintains balanced force.
Smart Images
Figure CN223908454U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of air conditioners, in particular to a coupling and a condensing fan. BACKGROUND
[0002] In an air conditioning system, a condensing fan is used to condense the low-pressure working medium steam discharged by an evaporator.
[0003] In the related art, the condensing fan includes a shell, a fan blade assembly, a coupling, a power motor and the like. The fan blade assembly, the coupling and the power motor are all located in the shell. The fan blade assembly includes a circular connecting sheet and a plurality of fan blades surrounding the outer periphery of the connecting sheet. Each fan blade is connected to the connecting sheet. The middle part of the connecting sheet is provided with a plurality of limiting holes. The coupling is a plate-shaped structure similar to the shape of the connecting sheet, and a plurality of limiting structures corresponding to the plurality of limiting holes are arranged on one plate surface of the coupling facing the connecting sheet. Each limiting structure is inserted into the corresponding limiting hole in interference. The middle part of the coupling is connected to the output shaft of the power motor. In this way, after the power motor is started, the fan blades can be driven to rotate synchronously by the coupling.
[0004] However, since the coupling is connected to the connecting sheet by the cooperation of the limiting structure and the limiting hole, and the limiting structure is located on one plate surface of the coupling. In order to facilitate the arrangement of the limiting structure, the limiting structure is mostly located in the middle part of the coupling, which increases the area of the coupling, thereby making the structure of the coupling bulky and inconvenient for assembly and processing. UTILITY MODEL CONTENT
[0005] The coupling and the condensing fan provided by the embodiments of the present disclosure can reduce the volume of the coupling and facilitate the assembly of the coupling. The technical solution is as follows:
[0006] The coupling provided by the embodiments of the present disclosure includes a coupling body for connecting to the output shaft of the power motor in the condensing fan and a plurality of limiting structures located on the outer periphery of the coupling body. The plurality of limiting structures are all connected to the coupling body, and each limiting structure protrudes on the same side of the axial direction of the coupling body.
[0007] In another implementation manner of the present disclosure, the coupling body is a square plate-shaped structure, the limiting structures are four, and each side wall of the coupling body is connected to one limiting structure.
[0008] In still another implementation manner of the present disclosure, the middle part of each side wall of the circumference of the coupling body has a groove respectively; the limiting structure is an L-shaped block structure, the limiting structure comprises a connecting part and a protruding part, the connecting part is located in one of the grooves and connected with the groove wall of the groove, the protruding part is connected with the connecting part, and the length direction of the protruding part is the axial direction of the coupling body.
[0009] In still another implementation manner of the present disclosure, the protruding part is a cuboid structure.
[0010] In still another implementation manner of the present disclosure, the coupling body and the limiting structure are an integral molding structure.
[0011] In still another implementation manner of the present disclosure, the coupling body and the limiting structure are both aluminum structures.
[0012] In still another implementation manner of the present disclosure, the middle part of the coupling body has a plug-in hole matched with the output shaft of the power motor, and at least one hole wall of the plug-in hole is a plane.
[0013] In still another implementation manner of the present disclosure, the thickness of the coupling body along the axial direction of itself is 2-3mm.
[0014] In still another implementation manner of the present disclosure, the plurality of limiting structures are located on the same circumference.
[0015] In another aspect, the present disclosure also provides a condensing fan, which comprises a shell, a coupling, a fan blade assembly and a power motor, the coupling, the fan blade assembly and the power motor are located in the shell, the fan blade assembly is connected with the power motor through the coupling, and the coupling is the coupling described above.
[0016] The technical scheme provided by the present disclosure has the following beneficial effects:
[0017] When the coupling provided by the present disclosure is used in the condensing fan, since the coupling comprises a coupling body and a plurality of limiting structures, the coupling body can be connected with the output shaft of the power motor to rotate under the driving of the power motor. Meanwhile, the plurality of limiting structures can be connected with the fan blade assembly in the condensing fan to drive the fan blade to rotate.
[0018] Since the plurality of limiting structures are located on the outer periphery of the coupling body, and each of the limiting structures protrudes on the same side of the coupling body, the limiting structures can be inserted into the fan assembly to achieve connection with the fan assembly. Moreover, since the position of the corresponding insertion hole in the fan assembly is generally fixed when the limiting structure is inserted into the fan assembly, arranging the limiting structure on the outer periphery of the coupling body can reduce the volume of the coupling body, thereby facilitating assembly and processing. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.
[0020] Figure 1 A structural schematic diagram of a coupling is provided for the embodiments of the present disclosure.
[0021] Figure 2 A right view of Figure 1
[0022] A structural schematic diagram after rotating 90 degrees. Figure 3 Figure 2
[0023] The meanings of the symbols in the drawings are as follows:
[0024] 1, coupling body; 10, insertion hole; 100, groove;
[0025] 2, limiting structure; 21, connecting part; 22, protruding part. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the drawings.
[0027] The embodiments of the present disclosure provide a coupling, as shown in the drawings, the coupling comprises a coupling body 1 for connecting with the output shaft of a power motor in a condensing fan, and a plurality of limiting structures 2 located on the outer periphery of the coupling body 1. Figure 1
[0028] The plurality of limiting structures 2 are connected with the coupling body 1, and each of the limiting structures 2 protrudes on the same side of the coupling body 1 in the axial direction.
[0029] When the coupling provided by the embodiment of the present disclosure is used in a condensing fan, since the coupling comprises the coupling body 1 and the plurality of limiting structures 2, the coupling body 1 can be connected with the output shaft of the power motor, so as to rotate under the driving of the power motor. Meanwhile, the plurality of limiting structures 2 can be connected with the fan blade assembly in the condensing fan, so as to drive the fan blade to rotate.
[0030] Since the plurality of limiting structures 2 are located on the outer periphery of the coupling body 1, and each limiting structure 2 protrudes on the same side of the coupling body 1, the limiting structure 2 can be inserted into the fan blade assembly, so as to be connected with the fan blade assembly. Moreover, since the position of the corresponding insertion hole in the fan blade assembly is generally fixed when the limiting structure is inserted into the fan blade assembly, arranging the limiting structure 2 on the outer periphery of the coupling body 1 can reduce the volume of the coupling body 1, so as to facilitate assembly and processing.
[0031] Optionally, the coupling body 1 and the limiting structure 2 are an integral molding structure.
[0032] In the above implementation manner, the coupling body 1 and the limiting structure 2 are designed as an integral structure, so as to not only improve the connection strength between the coupling body 1 and each limiting structure 2, but also simplify the manufacturing process of the coupling and improve the processing efficiency.
[0033] In other examples, the coupling body 1 and the limiting structure 2 can also be a split structure, and then each limiting structure 2 is welded on the coupling body 1 by welding.
[0034] Optionally, the coupling body 1 and the limiting structure 2 are both aluminum structure.
[0035] In the above implementation manner, the coupling body 1 and the limiting structure 2 are set as aluminum structure, so as to reduce the weight of the entire coupling by the aluminum material, and at the same time, the surface of the aluminum structure is easy to form an oxide film, so as to protect the coupling and avoid rusting of the coupling, thereby prolonging the service life of the coupling.
[0036] In other examples, the coupling body 1 and the limiting structure 2 can also be steel structure, copper structure, etc.
[0037] Figure 2 For Figure 1 the right view, in combination Figure 2 Optionally, the coupling body 1 is a square plate structure, the limiting structure 2 is four, and each side wall of the coupling body 1 is connected with one limiting structure 2.
[0038] In the above implementation, the coupling body is provided in a square plate structure, which is convenient for arranging the limiting structure 2 and processing the coupling. Meanwhile, the limiting structure 2 is arranged on each side wall of the coupling body 1, which can uniformly distribute the limiting structure 2 on the outer periphery of the coupling body 1, so that the limiting structure 2 can keep the force balanced when connected with the fan blade assembly, thereby prolonging the service life of the coupling body 1.
[0039] In other examples, the coupling body 1 can also have other shapes, such as a triangular plate, a pentagonal plate, or a circular plate, etc. As long as the limiting structure 2 can be arranged on the outer periphery of the coupling body 1, the shape of the coupling body 1 can be any shape.
[0040] Optionally, the middle part of each side wall of the coupling body 1 has a groove 100.
[0041] The limiting structure 2 is an L-shaped block structure, which includes a connecting part 21 and a protruding part 22. The connecting part 21 is located in the groove 100 and connected with the groove wall of the groove 100. The protruding part 22 is connected with the connecting part 21, and the length direction of the protruding part 22 is the axial direction of the coupling body 1.
[0042] In the above implementation, the groove is arranged in the side wall of the coupling body 1, which not only protects the limiting structure 2 through the groove 100, but also facilitates the arrangement of the limiting structure 2 in the coupling body 1 through the groove 100.
[0043] In this embodiment, the limiting structure 2 can be bent from part of the structure of the coupling body 1. When processing the coupling, a plate structure is selected as an integral structure of the four limiting structures 2 and the coupling body 1, and then the four limiting structures 2 are bent towards the same plate surface of the coupling body 1 to obtain the coupling. In order to facilitate the bending of the limiting structure 2, an opening is formed at each of the opposite sides of the limiting structure 2, so that the limiting structure 2 is located in a groove. In order to facilitate processing, the limiting structure 2 is located in the middle of the corresponding groove. That is, in actual processing, the same size openings are cut at the opposite sides of the limiting structure 2, and then the limiting structure 2 is bent towards the same plate surface of the coupling body 1, so that the protruding part 22 extends along the axial direction of the coupling body 1.
[0044] Optionally, the protruding part 22 is a cuboid block structure.
[0045] In the above implementation, the protruding part 22 is provided in a cuboid block structure, so that when the limiting structure 2 is connected with the fan blade assembly, the protruding part 22 is inserted into the connecting piece in the fan blade assembly, and through the long rectangular structure, the connecting piece in the fan blade assembly is clamped together, thereby driving the fan blade assembly to rotate together with the output shaft of the motor.
[0046] In other examples, the protruding part 22 can have other structures, such as a triangular prism, a cylinder, etc. When the protruding part 22 is a cylindrical structure, the synchronous rotation of the protruding part 22 and the fan blade assembly can be achieved through key connection.
[0047] Optionally, the middle part of the shaft coupling body 1 has a plug-in hole 10 matched with the output shaft of the motor, and at least one hole wall of the plug-in hole 10 is a plane.
[0048] In the above implementation, the middle part of the shaft coupling body 1 is provided with a plug-in hole 10 matched with the output shaft of the motor, so that the output shaft of the motor is inserted into the shaft coupling body through the plug-in hole 10. By setting the plug-in hole 10 as at least one hole wall being a plane, the plane can be clamped with the outer wall of the output shaft, thereby enabling the shaft coupling body 1 to rotate synchronously with the output shaft of the motor, instead of relative rotation.
[0049] In other examples, the synchronous rotation of the shaft coupling body 1 and the output shaft of the motor can also be achieved through key connection.
[0050] Optionally, the thickness of the shaft coupling body 1 along its axial direction is 2-3mm.
[0051] In the above implementation, the shaft coupling body 1 is provided with a thickness of 2-3mm, which can ensure that the shaft coupling body 1 has sufficient strength to meet the use requirements.
[0052] In other examples, the thickness of the shaft coupling body 1 can be set according to actual use requirements, such as 3-5mm, etc.
[0053] Figure 3 For Figure 2 The structure diagram after rotating 90 degrees, combined with Figure 3 Optionally, the plurality of limiting structures 2 are located on the same circumference and are centrally symmetric with respect to the center of the circumference.
[0054] In the above implementation, the plurality of limiting structures 2 are located on the same circumference and are in a central symmetric pattern relative to the center of the circumference, which can enable the plurality of limiting structures 2 to be symmetrically arranged on the coupling body 1, so that the center of gravity of the coupling body 1 will not be offset due to the arrangement of the limiting structures 2. Moreover, the symmetrically arranged limiting structures 2 can be inserted into the connecting holes of the connecting piece of the fan blade assembly without adjusting the angle of the limiting structures 2, which facilitates assembly.
[0055] In other examples, the limiting structure 2 can also be any structure that can correspond to the plurality of connecting holes in the connecting piece one by one.
[0056] On the other hand, the present disclosure also provides a condensing fan, which comprises a shell, a coupling, a fan blade assembly, and a power motor. The coupling, the fan blade assembly, and the power motor are located in the shell, and the fan blade assembly is connected to the power motor through the coupling. The coupling is the coupling described above.
[0057] The fan blade assembly comprises a connecting piece and a plurality of fan blades located on the outer periphery of the connecting piece. The middle part of the connecting piece has a plurality of connecting holes. The plurality of limiting structures in the coupling correspond to the plurality of connecting holes one by one, and each limiting structure is inserted into the corresponding connecting hole.
[0058] The condensing fan described above has the same beneficial effects as the coupling described above, which will not be repeated here.
[0059] The use process of the coupling provided by the present disclosure will be briefly introduced as follows:
[0060] In combination with Figure 1 When the coupling provided by the present disclosure is used to connect the fan blade assembly and the power motor, the coupling body 1 can be first connected to the output shaft of the power motor through the insertion hole 10.
[0061] Then, each limiting structure 2 is inserted into the connecting hole in the fan blade assembly, so that the fan blade assembly and the limiting structure 2 are fixed together.
[0062] When the power motor is started, the output shaft of the power motor can rotate synchronously with the coupling body 1 and the limiting structure 2. After the limiting structure 2 rotates, the fan blade assembly can rotate synchronously with the limiting structure 2.
[0063] The above is only an optional embodiment of the present disclosure, and does not limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.
Claims
1. A coupling, characterized in that The coupling comprises a coupling body (1) for connecting with an output shaft of a power motor in a condensing fan and a plurality of limiting structures (2) located at the periphery of the coupling body (1), each of the plurality of limiting structures (2) is connected with the coupling body (1), and each of the plurality of limiting structures (2) protrudes on the same side of the coupling body (1) in the axial direction.
2. The coupling according to claim 1, characterized in that The coupling body (1) is a square plate structure, the limiting structure (2) is four, and each side wall of the coupling body (1) is connected with one limiting structure (2).
3. The coupling of claim 2, wherein, The middle part of each side wall of the periphery of the coupling body (1) has a groove (100) respectively; The limiting structure (2) is an L-shaped block structure, the limiting structure (2) comprises a connecting part (21) and a protruding part (22), the connecting part (21) is located in one of the grooves (100) and connected with the groove wall of the groove (100), the protruding part (22) is connected with the connecting part (21), and the length direction of the protruding part (22) is the axial direction of the coupling body (1).
4. The coupling of claim 3, wherein, The protruding part (22) is a cuboid structure.
5. Coupling according to any of claims 1-4, characterized in that The coupling body (1) and the limiting structure (2) are an integral structure.
6. Coupling according to any of claims 1-4, characterized in that The coupling body (1) and the limiting structure (2) are both aluminum structure.
7. Coupling according to any of claims 1-4, characterized in that The middle part of the coupling body (1) has a plug hole (10) matched with the output shaft of the power motor, at least one hole wall of the plug hole (10) is a plane.
8. The coupling of any one of claims 1-4, wherein, The thickness of the coupling body (1) in the axial direction is 2-3mm.
9. The coupling of any one of claims 1-4, wherein, The plurality of limiting structures (2) are located on the same circumference.
10. A condensing fan characterized by, The condensing fan comprises a shell, a coupling, a fan blade assembly and a power motor, the coupling, the fan blade assembly and the power motor are located in the shell, the fan blade assembly is connected with the power motor through the coupling, and the coupling is the coupling according to any one of claims 1-9.