Rotating assembly, mold, cross-flow fan blade and air conditioner

Abstract

The utility model relates to a rotating assembly, a mold, a cross-flow fan blade and an air conditioner, the rotating assembly comprises a rotating part and a rotating shaft, in the axis direction of the rotating shaft, the rotating shaft is provided with a first end and a second end which are oppositely arranged, the first end of the rotating shaft is connected with the rotating part, the rotating shaft and the rotating part coaxially rotate, and the second end of the rotating shaft is connected with the first end of the rotating shaft. The rotating shaft is provided with a spacing part, the second end of the rotating shaft is used for being inserted into a connecting hole of a mold shaft sleeve, and the spacing part is connected with the mold shaft sleeve, so that a gap is formed between at least part of the peripheral wall of the rotating shaft and the hole wall of the connecting hole of the mold shaft sleeve. According to the rotating assembly, the spacing part is arranged on the rotating shaft, and the spacing part can generate a spacing effect, so that the hole wall of the connecting hole of the mold shaft sleeve can be prevented from being in contact with at least part of the peripheral wall of the rotating shaft, and at least part of the peripheral wall of the rotating shaft is prevented from being rubbed and scratched.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of rotating device, in particular to a rotating assembly, a mold, a cross-flow fan blade and an air conditioner. BACKGROUND

[0002] In the related art, during the manufacturing process of the rotating assembly, the rotating shaft of the rotating assembly needs to be inserted into the connecting hole of the mold shaft sleeve. Since the connecting hole of the mold shaft sleeve is used to fix the rotating shaft, when the rotating shaft is inserted, the rotating shaft and the connecting hole of the mold shaft sleeve will produce sliding friction, which will cause scratches on the outer circumferential surface of the rotating shaft, and further cause noise during the subsequent use of the rotating shaft. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present disclosure is to provide a rotating assembly, a mold, a cross-flow fan blade and an air conditioner to solve the above-mentioned problems in the related art.

[0004] In order to achieve the above-mentioned purpose, one aspect of the present disclosure provides a rotating assembly, comprising:

[0005] a rotating part;

[0006] a rotating shaft, the rotating shaft is provided with a first end and a second end which are oppositely arranged in the axial direction of the rotating shaft, the first end of the rotating shaft is connected with the rotating part, and the rotating shaft rotates coaxially with the rotating part;

[0007] wherein the rotating shaft is provided with a spacing part, the second end of the rotating shaft is used for inserting into the connecting hole of the mold shaft sleeve, and the spacing part is connected with the mold shaft sleeve to make the at least part of the outer circumferential wall of the rotating shaft and the hole wall of the connecting hole of the mold shaft sleeve be spaced apart by a gap.

[0008] Optionally, the spacing part is arranged on the outer circumferential wall of the rotating shaft, and the spacing part is arranged as a protrusion protruding radially from the rotating shaft.

[0009] Optionally, the spacing part is arranged as a ring structure, and the spacing part is arranged coaxially with the rotating shaft by being sleeved on the rotating shaft; or,

[0010] the spacing part is arranged as a block structure or a strip structure, the number of the spacing parts is multiple, and the multiple spacing parts are distributed around the axis of the rotating shaft.

[0011] Optionally, in the radial direction of the rotating shaft, the thickness of the spacing part is greater than 0.1mm.

[0012] Optionally, the spacing part is integrally formed with the rotating shaft.

[0013] Optionally, the rotating shaft between the interval part and the end of the second end of the rotating shaft is provided as a first shaft body.

[0014] The first shaft body comprises a first segment and a second segment connected with each other, the first segment is close to the second end of the rotating shaft, and the length of the first segment is less than the length of the second segment in the axial direction of the rotating shaft.

[0015] Optionally, the length of the first segment is provided as 2mm-14mm, the length of the second segment is provided as 14mm-30mm, and the length of the first shaft body is provided as greater than the sum of the length of the first segment and the length of the second segment plus 1 in the axial direction of the rotating shaft.

[0016] The ratio of the length of the first segment to the length of the second segment is provided as less than or equal to 1 and greater than or equal to 1 / 15.

[0017] Optionally, the rotating shaft between the interval part and the end of the second end of the rotating shaft is provided as a first shaft body, and the rotating shaft between the interval part and the end of the first end of the rotating shaft is provided as a second shaft body.

[0018] The second shaft body is provided with a flower groove, the rotating part is provided as a plastic part, and the rotating part is connected with the flower groove by an injection molding process.

[0019] The outer circumferential surface of the first shaft body is provided as a smooth surface, and the end of the second end of the rotating shaft is provided as an arc shape.

[0020] Optionally, the rotating assembly comprises an end cover of a cross-flow fan blade, the end cover comprises a cover body, and the cover body is provided as the rotating part.

[0021] The second aspect of the present disclosure also provides a mold for manufacturing the rotating assembly, comprising a mold body and a mold sleeve.

[0022] The mold sleeve is connected to the mold body, the mold sleeve is provided with a connecting hole, the second end of the rotating shaft of the rotating assembly is inserted into the connecting hole, and the interval part of the rotating assembly is connected with the mold sleeve, so that the rotating part of the rotating assembly is injection molded.

[0023] Optionally, a gap is provided between the hole wall of part of the connecting hole and the outer circumferential wall of the rotating shaft, and the interval part is tightly connected with the hole wall of the connecting hole.

[0024] In the axial direction of the rotating shaft, the length of the connecting hole is greater than the length of the rotating shaft inserted into the connecting hole.

[0025] Optionally, the connecting hole comprises a second hole and a first hole, and the second hole and the first hole are connected.

[0026] The gap is arranged between the hole wall of the second hole and the outer peripheral wall of the rotating shaft, and the hole wall of the first hole is closely connected with the spacing part, and the spacing part is close to the rotating member.

[0027] Optionally, the connecting hole further comprises a third hole, and the third hole, the second hole and the first hole are connected in sequence.

[0028] The hole wall of the third hole is closely connected with the outer peripheral wall of the rotating shaft.

[0029] Optionally, the diameter of the third hole is smaller than the diameter of the second hole, and the diameter of the second hole is smaller than the diameter of the first hole.

[0030] In the axial direction of the connecting hole, the length of the second hole is greater than the lengths of the third hole and the first hole.

[0031] Optionally, the first hole is provided with a guide part away from the hole opening of the second hole, and the guide part guides the spacing part to be clamped into the first hole.

[0032] The third aspect of the present disclosure further provides a cross-flow fan blade comprising the rotating assembly described above, and the rotating assembly is arranged as an end cover.

[0033] The fourth aspect of the present disclosure further provides an air conditioner comprising the cross-flow fan blade described above.

[0034] The above technical solution, by arranging the spacing part on the rotating shaft, the spacing part can produce spacing effect, so that when the second end of the rotating shaft is inserted into the connecting hole of the mold shaft sleeve, the spacing part is connected with the mold shaft sleeve, the spacing part produces spacing effect, so that there is a gap between at least part of the outer peripheral wall of the rotating shaft and the hole wall of the connecting hole of the mold shaft sleeve, thereby avoiding the hole wall of the connecting hole of the mold shaft sleeve contacting at least part of the outer peripheral wall of the rotating shaft, avoiding friction and scratches on at least part of the outer peripheral wall of the rotating shaft, so that the outer peripheral wall of the rotating shaft can remain smooth and flat, avoiding quality problems of the rotating assembly during production, improving the yield rate, and at the same time, after being installed into the product, no friction noise is generated, ensuring the user experience.

[0035] Other features and advantages of the present disclosure will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0036] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and together with the following specific embodiments, serve to explain the present disclosure but do not constitute a limitation on the present disclosure. In the drawings:

[0037] Fig. 1 is a structural schematic diagram of a rotating assembly of one embodiment of the present disclosure.

[0038] Fig. 2 is a perspective schematic diagram of a rotating shaft of one embodiment of the present disclosure.

[0039] Fig. 3 is a structural schematic diagram of one perspective of a rotating shaft of one embodiment of the present disclosure.

[0040] Fig. 4 is a structural schematic diagram of an application state of a mold of one embodiment of the present disclosure.

[0041] Fig. 5 is a structural schematic diagram of a mold shaft sleeve of one embodiment of the present disclosure.

[0042] Fig. 6 is a sectional view of a mold shaft sleeve of one embodiment of the present disclosure.

[0043] Explanation of Reference Signs

[0044] 1, rotating member;

[0045] 2, rotating shaft, 21, spacing portion, 22, flower groove, 23, first shaft body, 24, second shaft body, 25, transition portion;

[0046] 3, gap;

[0047] 4, mold shaft sleeve, 41, connecting hole, 411, third hole, 412, second hole, 413, first hole, 42, guide portion;

[0048] 5, mold body. DETAILED DESCRIPTION

[0049] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0050] In the present disclosure, "inner, outer" refers to the inner and outer of the relevant parts unless otherwise stated. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0051] In the description of the present disclosure, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0052] During the manufacturing process, the rotating assembly needs to insert the rotating shaft of the rotating assembly into the connecting hole of the mold shaft sleeve, and then manufacture the related structure outside the rotating shaft and connect the rotating shaft. Therefore, the mold shaft sleeve is needed to fix the rotating shaft, which is convenient for manufacturing the related structure outside the rotating shaft.

[0053] Since the connecting hole of the mold shaft sleeve is used to fix the rotating shaft, the connecting hole is in contact with the rotating shaft, so when the rotating shaft is inserted, the rotating shaft and the connecting hole of the mold shaft sleeve will produce sliding friction, the hole wall of the connecting hole will rub with the outer circumferential surface of the rotating shaft, at this time, it is easy to cause scratches on the outer circumferential surface of the rotating shaft, when the outer circumferential surface of the rotating shaft is scratched, its surface is not smooth, after being installed into the product, with the rotation of the rotating shaft, it is easy to produce friction noise with the matching parts, and further cause noise during the subsequent use of the rotating shaft, affecting the user experience.

[0054] Therefore, as shown in Figs. 1-3 The present disclosure provides a rotating assembly, which comprises a rotating part 1 and a rotating shaft 2.

[0055] In the axial direction of the rotating shaft 2, the rotating shaft 2 is provided with a first end and a second end arranged oppositely, the first end of the rotating shaft 2 is connected with the rotating part 1, and the rotating shaft 2 rotates coaxially with the rotating part 1. It can be understood that the axis of the rotating shaft 2 coincides with the axis of the rotating part 1, so as to realize coaxial rotation.

[0056] Among them, the rotating shaft 2 is provided with a spacing part 21, the second end of the rotating shaft 2 is used for inserting into the connecting hole 41 of the mold shaft sleeve 4, the spacing part 21 is connected with the mold shaft sleeve 4, so that there is a gap 3 between at least part of the outer circumferential wall of the rotating shaft 2 and the hole wall of the connecting hole 41 of the mold shaft sleeve 4.

[0057] In the above technical solution, the spacing part 21 is arranged on the rotating shaft 2, and the spacing part 21 can generate a spacing effect. When the second end of the rotating shaft 2 is inserted into the connecting hole 41 of the mold shaft sleeve 4, the spacing part 21 is connected with the mold shaft sleeve 4, and the spacing part 21 generates a spacing effect, so that there is a gap 3 between the at least part of the outer peripheral wall of the rotating shaft 2 and the hole wall of the connecting hole 41 of the mold shaft sleeve 4. Therefore, the hole wall of the connecting hole 41 of the mold shaft sleeve 4 can avoid contacting the at least part of the outer peripheral wall of the rotating shaft 2, and frictional scratches on the at least part of the outer peripheral wall of the rotating shaft 2 can be avoided. The outer peripheral wall of the rotating shaft 2 can remain smooth and flat, the quality problem of the rotating assembly during the production process can be avoided, and the yield can be improved. After being installed in the product, no friction noise is generated, and the user experience is ensured.

[0058] Optionally, in an embodiment of the present disclosure, the spacing part 21 is arranged on the outer peripheral wall of the rotating shaft 2, and the spacing part 21 is arranged as a protrusion protruding in the radial direction of the rotating shaft 2. By being arranged in this way, the spacing part 21 can better play a spacing effect, so that the hole wall of the connecting hole 41 and the at least part of the outer peripheral wall of the rotating shaft 2 generate a gap 3.

[0059] The spacing part 21 can be inserted into the connecting hole 41 of the mold shaft sleeve 4 together with the rotating shaft 2 and connected with the hole wall of the connecting hole 41 in contact, so that the spacing part 21 directly generates a spacing effect between the hole wall of the connecting hole 41 and the outer peripheral wall of the rotating shaft 2, and the hole wall of the connecting hole 41 and the at least part of the outer peripheral wall of the rotating shaft 2 generate a gap 3.

[0060] Optionally, in another embodiment of the present disclosure, the spacing part 21 is arranged at the end of the second end of the rotating shaft 2, and the width of the spacing part 21 in the radial direction of the rotating shaft 2 is greater than the diameter of the rotating shaft 2. The spacing part 21 is inserted into the connecting hole 41 of the mold shaft sleeve 4 together with the second end of the rotating shaft 2, and the spacing part 21 plays a spacing effect.

[0061] Optionally, in an embodiment of the present disclosure, the spacing part 21 is arranged in a ring structure, and the spacing part 21 is arranged coaxially with the rotating shaft 2 and sleeved on the rotating shaft 2. By arranging the spacing part 21 in a ring structure, the hole wall of the connecting hole 41 can be uniformly contacted, the spacing effect can be ensured, and the processing and manufacturing can be facilitated.

[0062] Optionally, in an embodiment of the present disclosure, the spacing part 21 is provided in a block structure or a strip structure, and a plurality of spacing parts 21 are arranged at intervals around the axis of the rotating shaft 2. The spacing part 21 provided in the block structure or the strip structure at intervals can also produce uniform spacing effects and save material costs. In some examples, the plurality of spacing parts 21 can be arranged on one radial plane of the rotating shaft 2, so as to ensure balanced force. It should be noted that the number of spacing parts 21 can be set as needed, and can be 3, 4, 5 or more, which is not limited here.

[0063] Optionally, in an embodiment of the present disclosure, the spacing part 21 is close to the rotating member 1. That is, the spacing part 21 is close to the first end of the rotating shaft 2, and the second end of the rotating shaft 2 is inserted into the connecting hole 41 of the mold shaft sleeve 4 without being disturbed by the spacing part 21, avoiding too difficult insertion.

[0064] Optionally, in another embodiment of the present disclosure, the spacing part 21 is close to the end of the second end of the rotating shaft 2. That is, when the second end of the rotating shaft 2 is inserted into the connecting hole 41 of the mold shaft sleeve 4, the spacing part 21 can also enter the connecting hole 41 to produce spacing effects, so that the hole wall of the connecting hole 41 and at least part of the outer peripheral wall of the rotating shaft 2 have a gap 3.

[0065] Optionally, in some examples, the mold shaft sleeve 4 can be a resin or plastic shaft sleeve, and the spacing part 21 can produce a pushing effect to slightly move the hole wall of the connecting hole 41 of the mold shaft sleeve 4 away from at least part of the outer peripheral wall of the rotating shaft 2 to produce the gap 3. Of course, the mold shaft sleeve 4 can also be provided in a structure matched with the spacing part 21.

[0066] Optionally, in an embodiment of the present disclosure, the thickness of the spacing part 21 in the radial direction of the rotating shaft 2 is greater than 0.1 mm. That is, the protrusion height of the spacing part 21 in the radial direction of the rotating shaft 2 is greater than 0.1 mm, which can ensure the spacing effect. The specific value of the thickness of the spacing part 21 can be set as needed, which is not limited here.

[0067] Optionally, in an embodiment of the present disclosure, the spacing part 21 is integrally formed with the rotating shaft 2. That is, when the rotating shaft 2 is manufactured, the spacing part 21 can be directly formed on the outer peripheral wall of the rotating shaft 2, which can greatly improve the manufacturing efficiency and convenience.

[0068] Optionally, in another embodiment of the present disclosure, the spacer 21 can be separate from the rotating shaft 2, and the spacer 21 can be assembled on the rotating shaft 2. In this way, the spacer 21 and the rotating shaft 2 can be manufactured separately, and the existing production process of the rotating shaft 2 does not need to be adjusted, which is convenient to modify and has low investment cost. In some examples, the spacer 21 can be an elastic resin ring, and the spacer 21 can be stretched and sleeved on the rotating shaft 2, and then inserted into the connecting hole 41 to contact the hole wall of the connecting hole 41. Of course, the spacer 21 can also be a metal ring, which can be welded on the rotating shaft 2.

[0069] Optionally, in an embodiment of the present disclosure, the rotating shaft 2 located between the spacer 21 and the end of the second end of the rotating shaft 2 is provided as a first shaft body 23.

[0070] The first shaft body 23 includes a first segment L1 and a second segment L2 connected to each other, the first segment L1 is close to the second end of the rotating shaft 2, and the length of the first segment L1 is less than the length of the second segment L2 in the axial direction of the rotating shaft 2. Among them, the second segment L2 of the first shaft body 23 is mainly used for assembly with the product, so it is necessary to ensure that the second segment L2 is not damaged as much as possible and has sufficient length for assembly with the product. By arranging in this way, the second segment L2 between the spacer 21 and the first segment L1 can effectively play a protective role to avoid scratching the second segment L2.

[0071] Optionally, in an embodiment of the present disclosure, the length of the first segment L1 is set to 2mm-14mm, and the length of the first segment L1 is set to 14mm-30mm in the axial direction of the rotating shaft 2. Among them, the specific value of the length of the first segment L1 and the specific value of the length of the first segment L1 can be set as needed, which will not be limited here.

[0072] Optionally, the length of the first shaft body 23 is set to be greater than the sum of the length of the first segment L1 and the length of the second segment L2 plus 1. In this way, a transition portion 25 can be arranged at the position of the first shaft body 23 close to the spacer 21, which can facilitate the formation of the spacer 21 and avoid affecting the second segment L2. It can be understood that the length of the transition portion 25 is the length of the first shaft body 23 minus the sum of the length of the first segment L1 and the length of the second segment L2. Among them, the specific value of the length of the first shaft body 23 can be set as needed, which will not be limited here.

[0073] Optionally, the ratio of the length of the first segment L1 to the length of the second segment L2 is set to be less than or equal to 1 and greater than or equal to 1 / 15. By arranging in this way, the length of the second segment L2 can be ensured, and the length of the first segment L1 can be reduced without affecting the protection effect of the second segment L2. Among them, the specific value of the ratio of the length of the first segment L1 to the length of the second segment L2 can be set as needed, which will not be limited here.

[0074] Optionally, in one embodiment of the present disclosure, the rotating shaft 2 between the spacing part 21 and the end of the second end of the rotating shaft 2 is provided as the first shaft body 23, and the rotating shaft 2 between the spacing part 21 and the end of the first end of the rotating shaft 2 is provided as the second shaft body 24.

[0075] The second shaft body 24 is provided with the flower groove 22, the rotating part 1 is provided as a plastic part, and the rotating part 1 is connected with the flower groove 22 by using the injection molding process. The outer circumferential surface of the first shaft body 23 is provided as a smooth surface, and the end of the second end of the rotating shaft 2 is provided as an arc shape.

[0076] The first end of the rotating shaft 2 is connected with the rotating part 1, the connection strength with the rotating part 1 can be improved by providing the flower groove 22 on the outer circumferential surface of the second shaft body 24, and the coaxial rotation of the rotating part 1 and the rotating shaft 2 is facilitated. The rotating part 1 is a plastic part, and when the injection molding process is performed, the injection molding raw material is directly connected with the flower groove 22 and can flow into the groove of the flower groove 22, so that the connection strength can be further improved. Therefore, it can be understood that the rotating shaft 2 needs to be fixed when the injection molding process is performed, so that the mold shaft sleeve 4 can be provided to fix the rotating shaft 2, so that the injection molding can be realized.

[0077] The outer circumferential surface of the first shaft body 23 is provided as a smooth surface, which can facilitate the smooth rotation of the rotating assembly after being assembled with the product, and can avoid generating rotating friction noise. The end of the second end of the rotating shaft 2 is provided as an arc shape, which can be conveniently inserted into the mold shaft sleeve 4 and assembled with the product. Correspondingly, the spacing part 21 is arranged on the outer circumferential wall of the rotating shaft 2 and is close to the rotating part 1.

[0078] Optionally, in one embodiment of the present disclosure, the rotating assembly includes an end cover of a cross-flow fan blade, the end cover includes a cover body, and the cover body is provided as the rotating part 1. The end cover of the cross-flow fan blade is located at the end of the blade of the cross-flow fan blade, realizes the sealing effect, and the rotating shaft 2 faces outward and can be assembled with the product. In some examples, the cover body can be a disc-shaped structure, and the rotating shaft 2 is located at the shaft center of the cover body.

[0079] Optionally, in another embodiment of the present disclosure, the rotating assembly includes a centrifugal fan blade, the centrifugal fan blade includes a fan blade, the fan blade is provided as the rotating part 1, and the rotating shaft 2 is connected with the shaft center of the fan blade. Of course, in another example, the rotating assembly can also include other rotating structures.

[0080] As Figs. 4-6 shown, the second aspect of the present disclosure also provides a mold applied to manufacturing the above-mentioned rotating assembly, which includes a mold body 5 and a mold shaft sleeve 4.

[0081] The mold shaft sleeve 4 is connected to the mold body 5, and the mold shaft sleeve 4 is provided with a connecting hole 41, and the second end of the rotating shaft 2 of the rotating assembly is inserted into the connecting hole 41, and the spacing part 21 of the rotating assembly is connected to the mold shaft sleeve 4, so that the rotating part 1 of the rotating assembly is injection molded.

[0082] Wherein, by inserting the second end of the rotating shaft 2 into the connecting hole 41 of the mold shaft sleeve 4, the fixing of the rotating shaft 2 can be realized, and then the mold body 5 is closed and opened, the injection molding of the rotating part 1 is realized, the rotating part 1 is connected with the rotating shaft 2, and the rotating assembly is formed. By setting the spacing part 21, the hole wall of the connecting hole 41 and at least part of the outer peripheral wall of the rotating shaft 2 form a gap 3, which avoids direct friction and scratching, effectively protects the outer peripheral wall of the rotating shaft 2, and thus can avoid the friction noise generated by rotation after assembly with the product.

[0083] Wherein, in some examples, the mold body 5 is provided with an injection molding groove, and a mounting hole is formed in the injection molding groove, and the mold shaft sleeve 4 is connected to the mounting hole. After the rotating shaft 2 is connected with the mold shaft sleeve 4, the rotating shaft 2 is located in the injection molding groove and is connected with the rotating shaft 2 as the plastic raw material is injected.

[0084] Optionally, in an embodiment of the present disclosure, a gap 3 is provided between part of the hole wall of the connecting hole 41 and the outer peripheral wall of the rotating shaft 2, the spacing part 21 is closely connected with the hole wall of the connecting hole 41, and the length of the connecting hole 41 in the axial direction of the rotating shaft 2 is greater than the length of the rotating shaft 2 inserted into the connecting hole 41. By such arrangement, the friction between the hole wall of the connecting hole 41 and the outer peripheral wall of the rotating shaft 2 can be further avoided, and the outer peripheral wall of the rotating shaft 2 can be prevented from being scratched. By closely connecting the spacing part 21 with the hole wall of the connecting hole 41, the connection relationship between the two can be ensured, so that the connecting hole 41 has a fixing effect on the rotating shaft 2, and injection molding can be realized.

[0085] In some examples, part of the hole wall of the connecting hole 41 is provided with a avoiding part, and the avoiding part avoids the outer peripheral wall of the rotating shaft 2, so that a gap 3 is formed between part of the hole wall of the connecting hole 41 and the outer peripheral wall of the rotating shaft 2, and direct contact between the two is avoided. In another example, the outer peripheral wall of the rotating shaft 2 can be provided with an avoiding part, and the avoiding part avoids the hole wall of the connecting hole 41, so that a gap 3 is formed between part of the hole wall of the connecting hole 41 and the outer peripheral wall of the rotating shaft 2, and direct contact between the two is avoided.

[0086] Optionally, in an embodiment of the present disclosure, the connecting hole 41 includes a third hole 411, a second hole 412 and a first hole 413, and the third hole 411, the second hole 412 and the first hole 413 are sequentially connected end to end.

[0087] The hole wall of the third hole 411 is tightly connected with the outer circumferential wall of the rotating shaft 2, a gap 3 is arranged between the hole wall of the second hole 412 and the outer circumferential wall of the rotating shaft 2, and the hole wall of the first hole 413 is tightly connected with the spacing part 21.

[0088] The hole wall of the third hole 411 is tightly connected with the outer circumferential wall of the second end of the rotating shaft 2, the hole wall of the first hole 413 is tightly connected with the spacing part 21, two-point connection is realized, the outer circumferential wall of the rotating shaft 2 between the second end of the rotating shaft 2 and the spacing part 21 has the gap 3 with the second hole 412 and does not directly contact, protection is realized, and meanwhile, the connection stability of the connecting hole 41 and the rotating shaft 2 is ensured. The gap part can be arranged on the hole wall of the second hole 412, or the gap part can be arranged at the position opposite to the hole wall of the second hole 412 on the outer circumferential wall of the rotating shaft 2.

[0089] It can be understood that when the rotating shaft 2 is inserted into the connecting hole 41, the rotating shaft 2 is inserted from the first hole 413, the outer circumferential wall of the rotating shaft 2 does not contact the first hole 413, the rotating shaft 2 is continuously inserted into the second hole 412, the outer circumferential wall of the rotating shaft 2 also does not contact the second hole 412, the second end of the rotating shaft 2 is inserted into the third hole 411, the outer circumferential wall of the second end of the rotating shaft 2 contacts the hole wall of the third hole 411, at this time, the spacing part 21 is inserted into the first hole 413 and contacts the hole wall of the first hole 413, and fixation is realized. It should be noted that the outer circumferential wall of the rotating shaft 2 between the second end of the rotating shaft 2 and the spacing part 21 is mainly matched with the product, this area is kept from being scratched, and thus, the generation of rotating friction noise is avoided.

[0090] Optionally, in an embodiment of the present disclosure, the hole diameter of the third hole 411 is smaller than the hole diameter of the second hole 412, and the hole diameter of the second hole 412 is smaller than the hole diameter of the first hole 413. Through such arrangement, the gap 3 between the second hole 412 and the outer circumferential wall of the rotating shaft 2 can be generated, and meanwhile, the third hole 411 can contact the outer circumferential wall of the second end of the rotating shaft 2, and the first hole 413 can be matched with the spacing part 21. It should be noted that the gap part can be a groove space formed by increasing the hole diameter of the second hole 412.

[0091] Optionally, in the axial direction of the connecting hole 41, the length of the second hole 412 is greater than the lengths of the third hole 411 and the first hole 413. Through such arrangement, the outer circumferential wall of the rotating shaft 2 can be ensured to have a sufficient area to be protected, and thus, scratching can be avoided. It can be understood that the lengths of the third hole 411 and the first hole 413 are much smaller than the length of the second hole 412, that is, the third hole 411 can have small-range contact with the outer circumferential wall of the second end of the rotating shaft 2, and the first hole 413 can also have small-range contact matching with the spacing part 21.

[0092] Optionally, in another embodiment of the present disclosure, the connecting hole 41 comprises a second hole 412 and a first hole 413, the second hole 412 and the first hole 413 are connected in sequence.

[0093] The gap 3 is arranged between the hole wall of the second hole 412 and the outer wall of the rotating shaft 2, and the hole wall of the first hole 413 is in close connection with the spacing part 21.

[0094] When the rotating shaft 2 is inserted into the connecting hole 41, the rotating shaft 2 is inserted from the first hole 413, the outer wall of the rotating shaft 2 does not contact the first hole 413, and the rotating shaft 2 is continuously inserted into the second hole 412, the outer wall of the rotating shaft 2 does not contact the second hole 412, the spacing part 21 is inserted into the first hole 413 and contacts the hole wall of the first hole 413, and fixation is generated. The protection of the outer wall of the rotating shaft 2 can be achieved.

[0095] Optionally, in an embodiment of the present disclosure, the first hole 413 is provided with a guide part 42 away from the hole opening of the second hole 412, and the guide part 42 guides the spacing part 21 to be clamped into the first hole 413. Through the guide part 42, the spacing part 21 can be clamped into the first hole 413, and problems such as collision interference can be avoided. In some examples, the guide part 42 can be an expansion hole provided at the hole opening of the first hole 413 away from the second hole 412, the hole diameter of the expansion hole is greater than the hole diameter of the first hole 413, so that the guiding effect can be achieved. Optionally, the hole wall of the expansion hole can be arc-shaped transition. In other examples, the guide part 42 can be a guide pipe connected to the hole opening of the first hole 413 away from the second hole 412, and the guide pipe can be a tapered structure.

[0096] The third aspect of the present disclosure also provides a cross-flow fan blade, comprising the rotating assembly described above, and the rotating assembly is arranged as an end cover.

[0097] The fourth aspect of the present disclosure also provides an air conditioner comprising the cross-flow fan blade described above.

[0098] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0099] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present disclosure.

[0100] Furthermore, the various embodiments of the present disclosure can be arbitrarily combined with each other unless they contradict each other, and it should be understood that the same should be construed as being included in the disclosure of the present disclosure.

Claims

1. A rotating assembly, characterized in that, include: Rotating component; A rotating shaft has a first end and a second end disposed opposite to each other along its axial direction. The first end of the rotating shaft is connected to the rotating component, and the rotating shaft and the rotating component rotate coaxially. The rotating shaft is provided with a spacer portion, and the second end of the rotating shaft is used to insert into the connecting hole of the mold bushing. The spacer portion is connected to the mold bushing so that at least a portion of the outer peripheral wall of the rotating shaft is spaced apart from the hole wall of the connecting hole of the mold bushing.

2. The rotating assembly according to claim 1, characterized in that, The spacer portion is disposed on the outer peripheral wall of the rotating shaft, and the spacer portion is configured as a protrusion that protrudes radially from the rotating shaft.

3. The rotating assembly according to claim 2, characterized in that, The spacer portion is configured as a ring structure, and the spacer portion is sleeved on the rotating shaft and coaxially arranged with the rotating shaft; or... The spacer is configured as a block structure or a strip structure, and there are multiple spacers, which are distributed at intervals around the axis of the rotation shaft.

4. The rotating assembly according to claim 3, characterized in that, In the radial direction of the rotating shaft, the thickness of the spacer is set to be greater than 0.1 mm.

5. The rotating assembly according to claim 1, characterized in that, The spacer portion is integrally formed with the rotating shaft.

6. The rotating assembly according to claim 1, characterized in that, The rotating shaft located between the spacer and the second end of the rotating shaft is configured as a first shaft body; The first shaft includes a first segment and a second segment connected together. The first segment is close to the second end of the rotating shaft, and the length of the first segment is less than the length of the second segment in the axial direction of the rotating shaft.

7. The rotating assembly according to claim 6, characterized in that, In the axial direction of the rotating shaft, the length of the first segment is set to 2mm-14mm, the length of the second segment is set to 14mm-30mm, and the length of the first shaft body is set to be greater than the sum of the lengths of the first segment and the second segment plus 1; The ratio of the length of the first segment to the length of the second segment is set to be less than or equal to 1 and greater than or equal to 1 / 15.

8. The rotating assembly according to claim 1, characterized in that, The rotating shaft located between the end of the spacer and the second end of the rotating shaft is configured as a first shaft body, and the rotating shaft located between the end of the spacer and the first end of the rotating shaft is configured as a second shaft body; The second shaft is provided with a groove, and the rotating part is made of plastic. The rotating part is connected to the groove by injection molding. The outer circumferential surface of the first shaft is set to a smooth surface, and the end of the second end of the rotating shaft is set to an arc shape.

9. The rotating assembly according to any one of claims 1-8, characterized in that, The rotating assembly includes an end cap for a cross-flow fan blade, the end cap including a cover body, the cover body being configured as the rotating component.

10. A mold for manufacturing a rotating assembly as described in any one of claims 1-9, characterized in that, Includes the mold body and the mold bushing; The mold bushing is connected to the mold body. The mold bushing is provided with a connecting hole. The second end of the rotating shaft of the rotating assembly is inserted into the connecting hole. The spacer part of the rotating assembly is connected to the mold bushing so that the rotating part of the rotating assembly is injection molded.

11. The mold according to claim 10, characterized in that, A gap is provided between the hole wall of the connecting hole and the outer peripheral wall of the rotating shaft, and the gap is tightly connected to the hole wall of the connecting hole; In the axial direction of the rotating shaft, the length of the connecting hole is greater than the length of the rotating shaft inserted into the connecting hole.

12. The mold according to claim 11, characterized in that, The connection hole includes a second hole and a first hole, and the second hole and the first hole are connected together; The gap is provided between the wall of the second hole and the outer peripheral wall of the rotating shaft, and the wall of the first hole is tightly connected to the spacer portion, which is close to the rotating component.

13. The mold according to claim 12, characterized in that, The connecting hole also includes a third hole, and the third hole, the second hole, and the first hole are connected end to end in sequence. The wall of the third hole is tightly connected to the outer peripheral wall of the rotating shaft.

14. The mold according to claim 13, characterized in that, The diameter of the third hole is smaller than the diameter of the second hole, and the diameter of the second hole is smaller than the diameter of the first hole; In the axial direction of the connecting hole, the length of the second hole is greater than the lengths of the third hole and the first hole.

15. The mold according to claim 12, characterized in that, A guide portion is provided at the opening of the first hole away from the second hole, and the guide portion guides the spacer portion into the first hole.

16. A cross-flow fan blade, characterized in that, Includes a rotating assembly as described in any one of claims 1-8, wherein the rotating assembly is configured as an end cap.

17. An air conditioner, characterized in that, Including the cross-flow fan blade as described in claim 16.

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