Integrated wind wheel damping structure

Abstract

The utility model relates to the technical field of wind wheel damping structures, in particular to an integrated wind wheel damping structure which comprises an air conditioner shell. The outer rotor motor is fixedly arranged on one side of the air conditioner shell; the cross-flow wind wheel is rotationally arranged in the air conditioner shell; the outer rotor motor is fixedly provided with a first connecting part, the cross-flow wind wheel is fixedly provided with a second connecting part, the second connecting part is located on the outer side of the first connecting part, the second connecting part and the first connecting part are coaxially arranged, and a damping unit is integrally arranged between the inner circumference of the second connecting part and the outer circumference of the first connecting part. According to the air conditioner hanging unit, resonance between the cross-flow wind wheel and the outer rotor motor can be reduced, so that vibration noise is reduced, and the use experience of the air conditioner hanging unit is improved.

Description

Technical Field

[0001] This application relates to the field of wind turbine vibration damping structure technology, and in particular to an integrated wind turbine vibration damping structure. Background Technology

[0002] Wall-mounted air conditioners typically use a cross-flow fan and an internal rotor motor connected together to rotate and deliver air. A traditional connection method, such as the cross-flow fan disclosed in patent application CN215486657U, involves a cross-flow fan rotatably mounted inside the air conditioner casing, while the internal rotor motor is fixedly mounted outside the casing. The output end of the internal rotor motor extends into the air conditioner casing and is connected to the cross-flow fan via a connector, allowing the internal rotor motor to drive the cross-flow fan to rotate and deliver air.

[0003] However, in air conditioning wall-mounted systems, the cross-flow fan and the inner rotor motor often generate vibration noise due to resonance. Therefore, the air duct connection structure of the outer rotor motor and the cross-flow fan disclosed in the patent announcement number CN221380685U adopts the outer rotor motor method. An elastic structure is set between the outer rotor motor and the air conditioner casing. The cross-flow fan is fixed to the cross-flow duct as a whole through a soft connection, which helps to reduce the vibration of the motor and thus reduce the vibration noise of the air conditioning wall-mounted unit.

[0004] This application provides another integrated fan impeller vibration damping structure to reduce the vibration and noise of wall-mounted air conditioners, thereby improving the user experience of wall-mounted air conditioners. Utility Model Content

[0005] In order to reduce the resonance between the cross-flow fan and the external rotor motor, thereby reducing vibration and noise and improving the user experience of the air conditioner, this application provides an integrated fan vibration damping structure.

[0006] The above-mentioned objective of this application is achieved through the following technical solution:

[0007] An integrated impeller vibration damping structure includes an air conditioner housing; an external rotor motor fixedly mounted on one side of the air conditioner housing; and a cross-flow impeller rotatably mounted inside the air conditioner housing. The external rotor motor is fixedly provided with a first connecting part, and the cross-flow impeller is fixedly provided with a second connecting part. The second connecting part is located outside the first connecting part and is coaxially arranged with the first connecting part. A vibration damping unit is integrally provided between the inner periphery of the second connecting part and the outer periphery of the first connecting part.

[0008] Optionally, the cross-flow impeller is fixedly provided with a central shaft, which is rotatably located at the center of the outer rotor motor.

[0009] Optionally, the length of the first connecting part is 2 / 3 of the length of the second connecting part, the length of the damping unit is adapted to the length of the second connecting part, and the first connecting part, the second connecting part away from the cross-flow wind turbine, and the damping unit away from the cross-flow wind turbine are flush.

[0010] Optionally, the damping unit is a rubber damping layer.

[0011] Optionally, an installation module is provided between the external rotor motor and the first connecting part, so that the inner circumference of the first connecting part is fixedly installed on the outer circumference of the external rotor motor through the installation module; the installation module includes an internal thread, an external thread and multiple sets of locking mechanisms, the internal thread is provided on the inner circumference of the first connecting part, the external thread is provided on the outer circumference of the external rotor motor, and the internal thread and the external thread are connected and adapted to each other, the multiple sets of locking mechanisms are evenly arranged on the external rotor motor, the first connecting part is evenly provided with multiple sets of locking grooves, the multiple sets of locking mechanisms are correspondingly arranged one-to-one with the multiple sets of locking grooves, and when the external rotor motor and the first connecting part are connected through the internal thread and the external thread, the multiple sets of locking mechanisms are respectively locked in the corresponding locking grooves.

[0012] Optionally, the locking mechanism includes a locking wedge and an elastic element. The outer rotor motor is provided with a shrinkage groove with an opening facing the first connection part. The locking wedge is slidably disposed in the opening of the shrinkage groove. The elastic element is connected between the bottom of the shrinkage groove and the locking wedge, so that the locking wedge always has the tendency to slide out of the opening of the shrinkage groove.

[0013] Optionally, both the first connecting part and the second connecting part are cylindrical structures.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] During the use of a wall-mounted air conditioning system, the cross-flow fan and the inner rotor motor often generate vibration and noise due to resonance. At this time, the damping unit set between the outer rotor motor and the cross-flow fan helps to reduce the resonance between the cross-flow fan and the outer rotor motor, thereby reducing vibration and noise and improving the user experience of the wall-mounted air conditioning system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0017] Figure 2 This is an exploded structural diagram of Embodiment 1 of this application.

[0018] Figure 3 This is a cross-sectional structural diagram of Embodiment 1 of this application.

[0019] Figure 4 This is a cross-sectional structural diagram of Embodiment 2 of this application.

[0020] Figure 5 yes Figure 4 A magnified view of A in the middle.

[0021] Figure 6 A schematic diagram of the position of the locking groove in Embodiment 2 of this application.

[0022] Explanation of reference numerals in the attached drawings: 1. External rotor motor; 2. Cross-flow impeller; 31. First connecting part; 32. Second connecting part; 33. Vibration damping unit; 4. Central shaft; 5. Mounting module; 51. Internal thread; 52. External thread; 53. Locking mechanism; 531. Locking wedge; 532. Elastic element; 533. Contraction groove; 54. Locking groove. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0024] This application discloses an integrated wind turbine vibration damping structure.

[0025] Example 1:

[0026] Reference Figure 1-3 The integrated fan impeller vibration damping structure includes an air conditioner housing, an external rotor motor 1, and a cross-flow fan 2. The cross-flow fan 2 is rotatably installed inside the air conditioner housing, and the external rotor motor 1 is fixedly installed on one side of the air conditioner housing. The external rotor motor 1 is connected to the cross-flow fan 2 for transmission, so that the external rotor motor 1 drives the cross-flow fan 2 to rotate and deliver air.

[0027] The structure and implementation principle of the air conditioner housing (not shown in the figure), the structure and implementation principle of the external rotor motor 1, the structure and implementation principle of the cross-flow fan 2, the connection method between the air conditioner housing and the cross-flow fan 2, and the connection method between the air conditioner housing and the external rotor motor 1 are all disclosed in the prior art and will not be repeated here; the focus is on describing the connection method between the cross-flow fan 2 and the external rotor motor 1.

[0028] Specifically, the outer rotor motor 1 has a rotating rotor on the outside and a stationary stator inside. A first connecting part 31 is fixedly installed on the outside of the outer rotor motor 1. The first connecting part 31 is a metal cylindrical structure. A second connecting part 32 is fixedly installed on one side of the cross-flow impeller 2. The second connecting part 32 is also a metal cylindrical structure. The second connecting part 32 is located outside the first connecting part 31 and is coaxially arranged with the first connecting part 31 (the inner diameter of the second connecting part 32 is greater than the outer diameter of the first connecting part 31). A gap of about 1 cm is formed between the inner circumference of the second connecting part 32 and the outer circumference of the first connecting part 31. The gap formed between the inner circumference of the second connecting part 32 and the outer circumference of the first connecting part 31 is integrally filled with a shock-absorbing unit 33.

[0029] The damping unit 33 is a rubber damping layer made of damping rubber material, and the damping unit 33 is integrally filled between the inner periphery of the second connecting part 32 and the outer periphery of the first connecting part 31 by injection molding. The above-mentioned integral filling method is disclosed in the prior art, specifically an insert injection molding process. The second connecting part 32 and the first connecting part 31 with higher melting points are pre-embedded into the injection mold, and then the damping rubber material with lower melting point and in a molten state is injected into the injection mold. After cooling, the damping unit 33 can be formed between the inner periphery of the second connecting part 32 and the outer periphery of the first connecting part 31, and has good connection performance.

[0030] In this embodiment, the cross-flow impeller 2 is fixedly provided with a central shaft 4, which is coaxially arranged with the second connecting part 32 and the first connecting part 31. The stator of the external rotor motor 1 is provided with a central hole, and the central shaft 4 is rotatably disposed in the central hole of the rotor of the external rotor motor 1.

[0031] During assembly, S1, the shock-absorbing unit 33 is integrally set between the inner periphery of the second connecting part 32 and the outer periphery of the first connecting part 31 using insert injection molding; S2, the cross-flow fan 2 is rotated and installed on the side of the air conditioner housing away from the external rotor motor 1; S3, the external rotor motor 1 is embedded and fixedly installed on the other side of the air conditioner housing by translation. During this process, the central shaft 4 is inserted and rotated at the center of the external rotor motor 1, and the first connecting part 31 is fitted into and fixedly installed on the outer periphery of the external rotor motor 1.

[0032] During the use of the air conditioning wall-mounted unit system, the cross-flow fan 2 and the inner rotor motor often generate vibration noise due to resonance. At this time, the damping unit 33 set between the outer rotor motor 1 and the cross-flow fan 2 helps to reduce the resonance between the cross-flow fan 2 and the outer rotor motor 1, thereby reducing vibration noise and improving the user experience of the air conditioning wall-mounted unit.

[0033] In this embodiment, the length of the first connecting part 31 is 2 / 3 of the length of the second connecting part 32, and the length of the damping unit 33 is adapted to the length of the second connecting part 32. The first connecting part 31, the second connecting part 32 on the side away from the cross-flow fan 2, and the damping unit 33 on the side away from the cross-flow fan 2 are flush. Specifically, the length of the first connecting part 31 is 20cm, and the lengths of the second connecting part 32 and the damping unit 33 are 30cm. In the process of using insert injection molding to integrally set the damping unit 33 between the inner periphery of the second connecting part 32 and the outer periphery of the first connecting part 31, the injection cavities of the first connecting part 31, the second connecting part 32, and the damping unit 33 are controlled to be flush, so as to achieve the flush setting of the first connecting part 31, the second connecting part 32 on the side away from the cross-flow fan 2, and the damping unit 33 on the side away from the cross-flow fan 2.

[0034] Example 2:

[0035] The difference between this embodiment and embodiment one is that an installation module 5 is also provided between the external rotor motor 1 and the first connecting part 31 in this embodiment.

[0036] Reference Figure 3-6 In this embodiment, an installation module 5 is provided between the outside of the rotor of the external rotor motor 1 and the first connecting part 31. During the process of the external rotor motor 1 being embedded and fixedly installed on the other side of the air conditioner housing in a translational manner, in addition to the central shaft 4 being inserted and rotatably set at the center of the external rotor motor 1, the first connecting part 31 is fitted into and fixedly set on the outer periphery of the rotor of the external rotor motor 1 through the installation module 5.

[0037] The mounting module 5 specifically includes an internal thread 51, an external thread 52, and multiple sets of locking mechanisms 53. The internal thread 51 is located on the inner circumference of the first connecting part 31, the outer circumference of the rotor of the external rotor motor 1 is stepped, and the external thread 52 is located on the outer circumference of the rotor of the external rotor motor 1. The internal thread 51 and the external thread 52 are connected and adapted to each other, enabling a threaded connection between the rotor of the external rotor motor 1 and the first connecting part 31. Multiple sets of locking mechanisms 53 are evenly distributed on the rotor of the external rotor motor 1. The first connecting part 31 is evenly distributed with multiple sets of locking grooves 54. The cross-section of each locking groove 54 is similar to a right-angled triangle, i.e., it has a wedge-shaped surface. Each set of locking mechanisms 53 corresponds to one set of locking grooves 54. When the external rotor motor 1 is connected to the first connecting part 31 via the internal thread 51 and the external thread 52, the multiple sets of locking mechanisms 53 are respectively locked into the corresponding locking grooves 54.

[0038] The locking mechanism 53 specifically includes a locking wedge 531 and an elastic element 532; wherein, the outer circumference of the rotor of the external rotor motor 1 is provided with a shrinkage groove 533 with an opening facing the first connecting part 31 at the step position; the locking wedge 531 is slidably disposed in the groove opening of the shrinkage groove 533; the side of the locking wedge 531 near the first connecting part 31 is provided as an inclined wedge surface; the elastic element 532 is connected between the bottom of the shrinkage groove 533 and the locking wedge 531; the elastic element 532 is a compression spring, so that the locking wedge 531 always has the tendency to slide out of the groove opening of the shrinkage groove 533.

[0039] During the threaded connection between the rotor of the external rotor motor 1 and the first connecting part 31, multiple sets of locking grooves 54 follow the rotation and advancement of the first connecting part 31 and continuously approach the locking mechanism 53. When the locking groove 54 and the locking wedge 531 initially come into contact, their inclined wedge surfaces slide relative to each other. The locking wedge 531 retracts into the shrinkage groove 533 by compressing the elastic element 532 to avoid the first connecting part 31. After the rotor of the external rotor motor 1 is fully screwed into the first connecting part 31, if the first connecting part 31 is rotated in the opposite direction, the straight surfaces of the locking groove 54 and the locking wedge 531 will lock against each other, thereby making the threaded connection more stable.

[0040] The embodiments described herein are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An integrated wind turbine vibration damping structure, characterized in that: Including the air conditioner casing; An external rotor motor (1) is fixedly mounted on one side of the air conditioner casing; Cross-flow fan (2), the cross-flow fan (2) is rotatably installed inside the air conditioner casing; The external rotor motor (1) is fixedly provided with a first connecting part (31), and the cross-flow fan wheel (2) is fixedly provided with a second connecting part (32). The second connecting part (32) is located outside the first connecting part (31), and the second connecting part (32) and the first connecting part (31) are arranged coaxially. A shock-absorbing unit (33) is integrally provided between the inner circumference of the second connecting part (32) and the outer circumference of the first connecting part (31).

2. The integrated wind turbine vibration damping structure according to claim 1, characterized in that: The cross-flow fan (2) is fixedly provided with a central shaft (4), which is rotatably located at the center of the outer rotor motor (1).

3. The integrated wind turbine vibration damping structure according to claim 1, characterized in that: The length of the first connecting part (31) is 2 / 3 of the length of the second connecting part (32), the length of the shock-absorbing unit (33) is adapted to the length of the second connecting part (32), and the first connecting part (31), the second connecting part (32) are flush with the side away from the cross-flow wind turbine (2), and the side of the shock-absorbing unit (33) is flush with the side away from the cross-flow wind turbine (2).

4. The integrated wind turbine vibration damping structure according to claim 1, characterized in that: The damping unit (33) is a rubber damping layer.

5. The integrated wind turbine vibration damping structure according to claim 1, characterized in that: An installation module (5) is provided between the external rotor motor (1) and the first connecting part (31) so that the inner circumference of the first connecting part (31) is fixedly mounted on the outer circumference of the external rotor motor (1) through the installation module (5); the installation module (5) includes an internal thread (51), an external thread (52) and multiple sets of locking mechanisms (53), the internal thread (51) is provided on the inner circumference of the first connecting part (31), the external thread (52) is provided on the outer circumference of the external rotor motor (1), and the internal thread (51) and the external thread (52) are fixedly mounted on the outer circumference of the external rotor motor (1). The external thread (52) is connected and adapted, and multiple sets of locking mechanisms (53) are evenly arranged on the external rotor motor (1). The first connecting part (31) is evenly arranged with multiple sets of locking grooves (54). The multiple sets of locking mechanisms (53) and multiple sets of locking grooves (54) are arranged one-to-one. When the external rotor motor (1) and the first connecting part (31) are connected by the internal thread (51) and the external thread (52), the multiple sets of locking mechanisms (53) are locked in the corresponding locking grooves (54).

6. The integrated wind turbine vibration damping structure according to claim 5, characterized in that: The locking mechanism (53) includes a locking wedge (531) and an elastic element (532). The external rotor motor (1) is provided with a shrinkage groove (533) with an opening facing the first connecting part (31). The locking wedge (531) is slidably disposed in the opening of the shrinkage groove (533). The elastic element (532) is connected between the bottom of the shrinkage groove (533) and the locking wedge (531) so that the locking wedge (531) always has the tendency to slide out of the opening of the shrinkage groove (533).

7. The integrated wind turbine vibration damping structure according to claim 1, characterized in that: Both the first connecting part (31) and the second connecting part (32) are cylindrical structures.

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