Air conditioner fan bearing structure and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and discloses an air conditioner fan bearing structure and an air conditioner, and the bearing structure comprises a bearing seat which is provided with a mounting hole for mounting a bearing assembly; the bearing assembly is mounted in the mounting hole; and the guide piece is fixed in the mounting hole, the guide piece is provided with a tapered barrel part which extends towards the bearing assembly and is gradually shrunk, and the tapered barrel part and the bearing assembly are coaxially arranged and are used for guiding a fan shaft to be inserted into a bearing. According to the bearing structure, the assembly problem caused by a deep bearing seat is effectively solved, the fan shaft can be smoothly inserted into the bearing through the guide of the conical barrel part of the guide piece, the blind assembly function is achieved, the assembly efficiency is remarkably improved, and the labor cost is reduced. In addition, the guide piece is arranged in the bearing seat, extra space is not occupied, and the compactness of the structure is kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field especially, relate to a kind of air conditioner fan bearing structure and air conditioner. BACKGROUND

[0002] In prior art, the bearing seat of air conditioner fan is usually designed shallow, which makes the insertion operation of fan shaft more convenient, and even blind installation can be realized, i.e. installation is completed by hand feeling in invisible condition. This design simplifies the assembly process and improves production efficiency. However, with the increasing demand for air conditioner performance, especially the increasing demand for sealing, the traditional shallow-depth bearing seat design gradually shows its limitations. In order to improve the sealing performance of air conditioner, a common improvement way is to increase the length of bearing seat, which effectively prevents the intrusion of external impurities such as dust and moisture by lengthening the bearing seat.

[0003] However, the increase of bearing seat length also brings a series of new problems. The most significant problem is that the installation of fan shaft becomes more difficult. Due to the increase of bearing seat depth, the fan shaft is more likely to be skewed or stuck during insertion, resulting in reduced installation efficiency and even possible damage to the bearing or fan shaft. The traditional blind installation method becomes difficult to implement in this case, and the operator needs to align and operate more carefully, which undoubtedly increases the assembly difficulty and time cost. SUMMARY

[0004] Based on the technical problem of inconvenient installation of fan shaft in deep bearing seat in prior art, the utility model provides an air conditioner indoor unit fan bearing structure, which can easily insert the fan shaft into the bearing assembly by setting the guide piece and guiding through the conical cylinder part, without accurate alignment, greatly improving the assembly efficiency. Even in invisible condition, the fan shaft can be smoothly inserted into the bearing through the guidance of the conical cylinder part, realizing the function of blind installation.

[0005] The utility model provides a kind of air conditioner fan bearing structure, comprising:

[0006] Bearing seat, which is provided with a mounting hole for mounting a bearing assembly;

[0007] Bearing assembly, mounted in the mounting hole;

[0008] Guide piece, fixed inside the mounting hole, the guide piece has a tapered conical cylinder part extending towards the bearing assembly, the conical cylinder part is coaxially arranged with the bearing assembly, and is used for guiding the insertion of fan shaft into the bearing.

[0009] In some embodiments, the guide piece has a ring-shaped flange part connected with the large end of the tapered cylinder part; the inner wall of the bearing seat is provided with a clamping groove matched with the clamping pawl, and the guide piece is clamped and fixed by clamping the pawl into the clamping groove.

[0010] In some embodiments, the small end face of the tapered cylinder part abuts against the bearing face.

[0011] In some embodiments, the clamping groove penetrates through the outer wall of the bearing seat, and a sealing ring is sleeved on the bearing seat outside the clamping groove.

[0012] In some embodiments, the taper angle of the tapered cylinder part is alpha, and alpha ranges from 60° to 90°.

[0013] In some embodiments, the minimum inner diameter of the tapered cylinder part is greater than or equal to the inner hole diameter of the bearing.

[0014] In some embodiments, the bearing assembly comprises a bearing body and a bearing sleeve sleeved outside the bearing body.

[0015] In some embodiments, the small end of the tapered cylinder part is provided with a ring-shaped boss part.

[0016] In some embodiments, the length of the bearing seat ranges from 30 mm to 40 mm.

[0017] The utility model also includes an air conditioner, which comprises the air conditioner fan bearing structure.

[0018] Compared with the prior art, the utility model has the advantages and positive effects that:

[0019] The air conditioner fan bearing structure effectively solves the assembly problem caused by the deep bearing seat, the fan shaft can be smoothly inserted into the bearing through the guidance of the tapered cylinder part of the guide piece even in invisible conditions, the function of blind assembly is realized, the assembly efficiency is significantly improved, and the labor cost is reduced. In addition, the guide piece is arranged in the bearing seat, which does not occupy additional space and maintains the compactness of the structure. Due to the guiding effect of the tapered cylinder part, the insertion process of the fan shaft is more smooth and easy, and complicated accurate alignment operation is not needed, further improving the assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is the installation structure schematic view of the air conditioner indoor unit fan bearing structure of the utility model;

[0022] Figure 2 It is the perspective view of the air conditioner indoor unit fan bearing structure of the utility model;

[0023] Figure 3 It is Figure 2 The explosion view of

[0024] Figure 4 It is the sectional view of the air conditioner indoor unit fan bearing structure of the utility model;

[0025] Figure 5 It is the structure schematic view of the guide piece in the air conditioner indoor unit fan bearing structure of the utility model;

[0026] Mark explanation:

[0027] 1 - casing;

[0028] 100 - bearing seat;110 - mounting hole;120 - clamping groove;

[0029] 200 - bearing assembly;

[0030] 300 - guide piece;310 - annular flange part;320 - conical cylinder part;330 - clamping jaw;340 - annular boss part. Specific implementation

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0033] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "installation", "connection" should be broad sense understanding, for example, it can be fixed connection, also can be detachable connection, or integrally connected. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances. In the description of the above embodiment, specific features, structure, material or characteristics can be combined in any one or more embodiments or examples in a suitable way.

[0034] The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise stated, the meaning of "multiple" is two or more.

[0035] Referring to Figures 1-5 For an embodiment of the utility model air conditioner fan bearing structure, it aims at effectively solving the assembly inconvenience caused by deep bearing seat.

[0036] The air conditioner fan bearing structure includes bearing seat 100, bearing assembly 200 and guide piece 300.

[0037] The inside of bearing seat 100 is provided with mounting hole 110, and mounting hole 110 is used to accommodate and fix bearing assembly 200. The size and shape of mounting hole 110 are accurately matched with bearing assembly 200 to ensure its stable installation and avoid loosening or deviation. Bearing seat 100 is connected with other parts (such as fan support or casing 1) of air conditioner indoor unit through its own structure, and provides reliable support for the whole fan system. The material of bearing seat can be metal or engineering plastic according to the need.

[0038] Bearing assembly 200 is installed in the mounting hole 110, and its main function is to support the rotating movement of fan shaft. In this embodiment, bearing assembly 200 includes bearing body (not shown) and bearing sleeve sleeved on the outside of bearing body. The bearing body can be sliding bearing (such as oil-containing bearing) or rolling bearing (such as ball bearing), which is selected according to actual application. The bearing sleeve is preferably made of elastic material such as rubber to play the role of buffering and shock absorption, noise reduction. Bearing sleeve and bearing body can be fixed by interference fit or adhesion.

[0039] Guide piece 300 is fixed inside the mounting hole 110 of bearing seat 100.

[0040] The guide 300 has a tapered conical cylinder portion 320 extending towards the bearing assembly 200. The conical cylinder portion 320 is coaxially arranged with the bearing assembly 200, i.e. the central axis of the conical cylinder portion 320 coincides with the central axis of the bearing assembly 200, ensuring that the fan shaft can be inserted into the bearing body in the correct direction. The "tapered" of the conical cylinder portion 320 means that its inner diameter gradually decreases in the axial direction, forming a funnel-shaped entrance, thereby playing a guiding role for the fan shaft.

[0041] The above-mentioned air conditioner indoor unit fan bearing structure effectively solves the assembly problem caused by the deep bearing seat. Even in invisible conditions, the fan shaft can be smoothly inserted into the bearing through the guidance of the conical cylinder portion 320 of the guide 300, realizing the function of blind assembly, significantly improving the assembly efficiency and reducing the labor cost. In addition, the guide 300 is arranged inside the bearing seat 100, which does not occupy additional space, maintaining the compactness of the structure. Due to the guiding effect of the conical cylinder portion 320, the insertion process of the fan shaft is more smooth and easy, without the need for complicated and precise alignment operations, further improving the assembly efficiency.

[0042] The guide 300 and the bearing seat 100 can be fixed by a clamping structure, adhesion or screws, etc.

[0043] In the present embodiment, the guide 300 is fixedly connected with the bearing seat 100 by a clamping structure. Through the clamping structure connection, the guide 300 can be quickly and firmly installed on the bearing seat 100, without the need for additional fasteners such as screws and glue, improving the assembly efficiency and reducing the manufacturing cost. The design of the clamping structure can have various forms, for example, it can be the cooperation of elastic clamping pawls and clamping grooves, or the cooperation of protrusions and grooves.

[0044] Specifically, in the present embodiment, the guide 300 is made of engineering plastic with a certain elasticity, and the guide 300 has an annular flange portion 310, and the annular flange portion 310 is circumferentially provided with a plurality of clamping pawls 330, and the inner wall of the bearing seat 100 is provided with clamping grooves 120 matched with the clamping pawls 330, and the clamping pawls 330 are clamped into the clamping grooves 120 to form a clamping structure. The annular flange portion 310 is an important component of the guide 300, which is annular in shape and provides a mounting base for the clamping pawls 330. The clamping pawls 330 can be uniformly or non-uniformly distributed along the circumferential direction of the annular flange portion 310. The number of clamping pawls 330 can be designed according to actual needs, for example, it can be two, three, four or more. The inner wall of the bearing seat 100 is provided with clamping grooves 120 matched with the clamping pawls 330. The shape and size of the clamping grooves 120 are matched with the clamping pawls 330 to ensure that the clamping pawls 330 can be firmly clamped into the clamping grooves 120. When the clamping pawls 330 are clamped into the clamping grooves 120, a clamping structure is formed to fix the guide 300 on the bearing seat 100.

[0045] For example, in a specific embodiment, the annular flange portion 310 of the guide 300 is uniformly circumferentially provided with two clamping claws 330, and the inner circumferential wall of the bearing seat 100 is correspondingly provided with two rectangular clamping grooves, the size of the rectangular clamping grooves being slightly larger than the root size of the clamping claws, so that the clamping claws 330 can be smoothly inserted. When the guide 300 is installed on the bearing seat 100, the clamping claws 330 will be clamped to the edges of the rectangular clamping grooves, thereby achieving a firm connection.

[0046] In the present embodiment, the small end face of the tapered cylindrical portion 320 abuts against the end face of the bearing assembly 200, which serves as a limiting function when the guide 300 is installed, and also serves to fix the bearing assembly after the guide 300 is assembled. In addition, when the small end face of the tapered cylindrical portion 320 is in close contact with the end face of the bearing assembly 200, a better guiding effect can be achieved.

[0047] In the present embodiment, the clamping groove is a through-hole structure, i.e., it penetrates through the outer wall of the bearing seat. In order to ensure the sealing performance of the bearing seat, a sealing ring (not shown) can also be provided on the outer side of the clamping groove. The sealing ring seals the clamping groove, thereby improving the sealing performance of the bearing seat. In other embodiments, the clamping groove can also be filled with sealing glue.

[0048] In the present embodiment, the minimum inner diameter of the tapered cylindrical portion 320 is equal to or slightly larger than the diameter of the inner hole of the bearing assembly 200 (the inner hole of the bearing body), so as to ensure that the fan shaft can smoothly enter the bearing body after passing through the tapered cylindrical portion 320. If the minimum inner diameter of the tapered cylindrical portion 320 is smaller than the diameter of the inner hole of the bearing assembly 200, the fan shaft cannot enter the bearing body. If the minimum inner diameter of the tapered cylindrical portion 320 is much larger than the diameter of the inner hole of the bearing assembly 200, the guiding effect will be reduced.

[0049] In the present embodiment, the taper angle of the tapered cylindrical portion 320 is α, where α is preferably 60°-90°.

[0050] In the present embodiment, as shown in Figure 5 the small end portion of the tapered cylindrical portion 320 is also provided with an annular boss portion 340. The annular boss portion 340 extends in the axial direction, and the fan shaft can be more smoothly and accurately inserted into the bearing hole through the guidance of the annular boss portion 340. In addition, the annular boss portion 340 can also enhance the structural strength of the guide 300.

[0051] In the present embodiment, the length of the bearing seat 100 is in the range of 30-40 mm. The length of the bearing seat 100 directly affects the fixing stability of the bearing and the sealing performance of the overall structure. If the bearing seat 100 is too short, the bearing will not be fixed firmly and will be prone to looseness or deviation, affecting the normal operation of the fan. If the bearing seat 100 is too long, it will increase the material cost and assembly difficulty, and may occupy too much space.

[0052] The utility model still includes a kind of air conditioner comprising above-mentioned air conditioner indoor unit fan bearing structure, by using above-mentioned air conditioner indoor unit fan bearing structure, this air conditioner can effectively solve the problem of inconvenient installation brought by deep bearing seat 100, improve assembly efficiency, reduce manufacturing cost, and improve the reliability and sealing performance of product.

[0053] The above examples are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been explained in detail with reference to the foregoing examples, the technical solutions recorded in the foregoing examples can still be modified or some technical features can be replaced equivalently by the ordinary skilled in the art; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed by the utility model.

Claims

1. An air conditioner fan bearing structure, characterized by, The application relates to an air conditioner fan bearing structure. The bearing seat is provided with a mounting hole for mounting a bearing assembly; The bearing assembly is mounted in the mounting hole; The guide piece is fixed inside the mounting hole, and the guide piece has a tapered cone part extending towards the bearing assembly, the tapered cone part is coaxially arranged with the bearing assembly, and the tapered cone part is used for guiding the fan shaft to insert the bearing.

2. The air conditioner fan bearing structure according to claim 1, characterized by, The guide piece has an annular flange part connected with the large end of the tapered cone part; the annular flange part is circumferentially provided with a plurality of clamping claws, the inner wall of the bearing seat is provided with clamping grooves matched with the clamping claws, and the guide piece is clamped and fixed by clamping the clamping claws into the clamping grooves.

3. The air conditioner fan bearing structure according to claim 2, characterized by The small end surface of the tapered cone part abuts against the bearing surface.

4. The air conditioner fan bearing structure according to claim 2, characterized by The clamping grooves pass through the outer wall of the bearing seat, a sealing ring is sleeved on the bearing seat outside the clamping grooves, or sealing glue is filled in the clamping grooves.

5. The air conditioner fan bearing structure according to claim 1, wherein The taper angle of the tapered cone part is alpha, and the range of alpha is 60-90 degrees.

6. The air conditioner fan bearing structure according to claim 1, wherein The minimum inner diameter of the tapered cone part is greater than or equal to the inner hole diameter of the bearing.

7. The air conditioner fan bearing structure according to claim 1, wherein The bearing assembly comprises a bearing body and a bearing sleeve sleeved outside the bearing body.

8. The air conditioner fan bearing structure according to claim 1, wherein The small end of the tapered cone part is provided with an annular boss part.

9. The air conditioner fan bearing structure according to claim 1, wherein The length of the bearing seat ranges from 30 to 40 mm.

10. An air conditioner characterized by comprising: The application further relates to an air conditioner fan bearing structure comprising any one of the air conditioner fan bearing structures according to claims 1-9.

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