CN213990340U

CN213990340U - Radiating fan with tight assembly

Info

Publication number: CN213990340U
Application number: CN202022361370.1U
Authority: CN
Inventors: 刘锦堂; 梁峰
Original assignee: Guangtai Motor Wujiang Co ltd
Current assignee: Guangtai Motor Wujiang Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-08-17
Anticipated expiration: 2030-10-22

Abstract

The utility model relates to an assemble inseparable radiator fan, including casing and rotor subassembly, be provided with the column jacket in the casing, be provided with bearing assembly in the column jacket, the rotor subassembly includes the axle core that connects with bearing assembly, the column jacket inner wall is formed with the protruding edge of second, bearing assembly is including fixing the solid fixed ring of bearing on the column jacket and installing the first bearing in the column jacket, first elastic component and second bearing, the first bearing is along looks butt with the second is protruding, the solid fixed ring of bearing is used for supporting the second bearing, first elastic component is supported and is held between first bearing and second bearing. The first bearing of the utility model is limited between the second convex edge and the first elastic element, the second bearing is limited between the bearing fixing seat and the first elastic element, the first elastic element can provide the abutting force for urging the first bearing and the second bearing to abut against the two ends, and the bearing displacement is avoided; meanwhile, the elastic piece is telescopic, so that axial adjustment is more convenient, and assembly adaptability is higher.

Description

Radiating fan with tight assembly

Technical Field

The utility model relates to a radiator fan, in particular to assemble inseparable radiator fan.

Background

The heat dissipation fan is widely used to solve the heat dissipation problem of various electronic devices or components, such as a central processing unit CPU, a display card, a power supply, and the like in a personal computer. The known fan structure mainly comprises a shell, a stator and a rotor, wherein the stator and the rotor are arranged in the shell, a column sleeve and a bearing arranged in the column sleeve are arranged on the shell, an electromagnetic coil and a silicon steel sheet of the stator are fixedly arranged outside the column sleeve, a shaft core in the rotor is inserted into the bearing, and a permanent magnetic ring on the rotor is sleeved outside the electromagnetic coil. When the fan is activated, the rotor is driven to rotate around the column sleeve by the action of the magnetic field of the electromagnetic coil and the magnetic ring, and the rotor rotates to generate airflow by utilizing the fan blades on the rotor, so that heat energy generated by the electronic component is blown out, and the effects of heat dissipation and cooling are achieved. However, the existing bearing usually realizes axial limit through a flange on a column sleeve, the axial position of the bearing is difficult to be tightly limited, and the bearing is easy to shift after long-term use, thereby affecting the normal work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an assemble inseparable radiator fan to solve above-mentioned problem.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a radiator fan that assembles closely, includes casing and rotor subassembly, be provided with the column jacket in the casing, be provided with bearing assembly in the column jacket, the rotor subassembly include with the axle core that the bearing assembly connects, the column jacket inner wall is formed with the protruding edge of second, bearing assembly is including fixing the solid fixed ring of bearing on the column jacket and installing first bearing, first elastic component and second bearing in the column jacket, first bearing with the protruding butt along of second, the solid fixed ring of bearing is used for supporting the second bearing, first elastic component support and hold first bearing with between the second bearing.

Furthermore, a second elastic piece and a clamp spring are sleeved on the shaft core, and the second elastic piece abuts against and is arranged between the second bearing and the clamp spring.

Furthermore, the shaft core is provided with a clamping groove, and the clamping spring is in clamping fit with the clamping groove.

Further, the end of the bearing fixing ring is provided with a supporting surface which extends inwards and supports the second bearing.

Further, the bottom of the shell is provided with a base, and the column sleeve is fixedly arranged in the base in a penetrating mode.

Further, the base is a hollow structure with two open ends.

Further, the rotor subassembly still includes the rotor and fixes the mount pad on the rotor, the axle core is fixed to be worn to establish in the mount pad, the terminal surface of mount pad with first bearing contacts.

Further, the first elastic member is a large elastic spring.

Further, the second elastic member is a small elastic spring.

Further, the cooling fan further comprises a stator assembly, a first convex edge is formed on the outer wall of the column sleeve, and the stator assembly is sleeved outside the column sleeve and supported by the first convex edge.

The beneficial effects of the utility model reside in that: the first bearing of the utility model is limited between the second convex edge and the first elastic element, the second bearing is limited between the bearing fixing seat and the first elastic element, the first elastic element can provide the abutting force for urging the first bearing and the second bearing to abut against the two ends, and the bearing displacement is avoided; meanwhile, the elastic piece is telescopic, so that axial adjustment is more convenient, and assembly adaptability is higher.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of the heat dissipation fan of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, a cooling fan with tight assembly according to a preferred embodiment of the present invention includes a housing 1, a stator assembly 2, a rotor assembly 3, and blades 4.

A housing chamber 11 for housing the stator assembly 2, the rotor assembly 3, and the blades 4 is provided in the housing 1. The bottom of the housing 1 is provided with a base 12 located in the accommodating cavity 11 and a column sleeve 13 fixedly arranged in the base 12 in a penetrating manner, and the base 12 is a hollow structure with two open ends. In this embodiment, the housing 1 is made of plastic; the column jacket 13 is made of metal, preferably copper. For the convenience of assembly, the column sleeve 13 is matched and connected with the base 12 in a buckling mode.

The column sleeve 13 is a hollow structure, the stator assembly 2 is fixedly installed outside the column sleeve 13, the rotor assembly 3 comprises a rotor 31 and a shaft core 32 connected with the rotor 31, wherein the rotor 31 is positioned at the periphery of the stator assembly 2, and the shaft core 32 is rotatably arranged in the column sleeve 13 in a penetrating way. The column sleeve 13 is provided with a bearing assembly, and the shaft core 32 is matched with the bearing assembly to realize smooth rotation of the shaft core 32.

A first convex edge 131 is formed on the outer wall of the column sleeve 13 near the middle section, and the stator assembly 2 is sleeved outside the column sleeve 13 and supported by the first convex edge 131 to limit the downward movement of the stator assembly 2. In this embodiment, the stator assembly 2 and the column sleeve 13 are preferably a tight fit.

The inner wall of the upper end of the column jacket 13 is formed with a second ledge 132 supporting the bearing assembly. The bearing assembly includes a first bearing 51, a first elastic member 52, a second bearing 53, and a bearing fixing ring 54. The first bearing 51, the first elastic element 52 and the second bearing 53 are all installed in the column sleeve 13, the first bearing 51 abuts against the second convex edge 132, the bearing fixing ring 54 is fixed at the bottom of the column sleeve 13 and supports the second bearing 53, and the first elastic element 52 is located between the first bearing 51 and the second bearing 53 to provide abutting force for urging the first bearing 51 and the second bearing 53 to abut against towards two ends, so that axial movement of the first bearing 51 and the second bearing 53 is avoided. In this embodiment, the first bearing 51 and the second bearing 53 are both ball bearings, the first elastic element 52 is a large elastic spring with a large elastic force, the bearing fixing ring 54 is a middle opening structure, the upper end of the bearing fixing ring is provided with a supporting surface 541 extending inwards and supporting the second bearing 53, and the bearing fixing ring 54 can be connected with the column sleeve 13 in a snap-fit manner or a thread connection manner.

The middle part of the rotor 31 is fixedly provided with a mounting seat 33 for connecting the shaft core 32, and the upper end of the shaft core 32 is fixedly arranged in the mounting seat 33 in a penetrating way. The lower end of the mounting seat 33 is a plane and contacts the first bearing 51. The shaft core 32 penetrates the column sleeve 13 from the lower end of the column sleeve 13 upwards and is matched and connected with the inner rings of the first bearing 51 and the second bearing 53. Preferably, in order to further improve the axial limit of the second bearing 53, the bearing assembly further includes a snap spring 55 and a second elastic member 56, which are disposed at the lower end of the shaft core 32, the lower end of the shaft core 32 is provided with a snap groove 321, which is in snap fit with the snap spring 55, so as to fix the snap spring 55, and two ends of the second elastic member 56 respectively abut against the lower end surfaces of the snap spring 55 and the second bearing 53. In the present embodiment, the second elastic member 56 is a small elastic spring having a small elastic force.

When the cooling fan of the utility model is installed, the first bearing 51 is arranged in the column sleeve 13 from the lower part of the column sleeve 13, and the second bearing 53 is abutted against the second convex edge 132; then, the first elastic member 52 and the second bearing 53 are sequentially installed in the column cover 13; the clamp spring 55 and the second elastic piece 56 are arranged on the shaft core 32, and the shaft core 32 is arranged in the first bearing 51 and the second bearing 53 in a penetrating manner; the bearing fixing ring 54 is installed in the column sleeve 13, the first bearing 51 is abutted between the second convex edge 132 and the first elastic piece 52, and the second bearing 53 is supported by the bearing fixing ring 54 and abutted between the first elastic piece 52 and the second elastic piece 56; the stator assembly 2 is arranged on the periphery of the column sleeve 13 and is abutted against the first convex edge 131, the mounting seat 33 is arranged at the upper end of the shaft core 32, the rotor 31 is arranged on the mounting seat 33, and the blades 4 are arranged on the rotor 31; finally, the rotor assembly 3 is fixed through the shell 1, and the assembly is completed. It should be noted that, the above-mentioned installation order is adjustable according to actual need, and the utility model discloses do not limit here.

The utility model has the advantages that: 1. the first elastic piece is arranged between the first bearing and the second bearing, the first bearing is limited between the second convex edge and the first elastic piece, the second bearing is limited between the bearing fixing seat and the first elastic piece, the first elastic piece can provide a tightening force for driving the first bearing and the second bearing to be tightly tightened towards two ends, and the bearing is prevented from shifting after the fan is used for a long time;

2. the shaft core of the utility model is provided with the second elastic part and the clamp spring, and the two ends of the second bearing are respectively and tightly propped against the first elastic part and the second elastic part, thereby further enhancing the axial limit of the second bearing;

3. the utility model discloses a solid fixed bearing is come to the solid fixed ring mode of elastic component and bearing, and convenient assembling improves assembly efficiency.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a radiator fan that assembles closely, includes casing and rotor subassembly, be provided with the column jacket in the casing, be provided with bearing assembly in the column jacket, the rotor subassembly include with the axle core that the bearing assembly connects, its characterized in that, the column jacket inner wall is formed with the protruding edge of second, bearing assembly is including fixing the solid fixed ring of bearing on the column jacket and installing first bearing, first elastic component and second bearing in the column jacket, first bearing with the protruding butt along of second, the solid fixed ring of bearing is used for supporting the second bearing, first elastic component support hold first bearing with between the second bearing.

2. The cooling fan with tight assembly according to claim 1, wherein a second elastic member and a snap spring are sleeved on the shaft core, and the second elastic member abuts against between the second bearing and the snap spring.

3. The cooling fan with the compact assembly of claim 2, wherein the shaft core is provided with a clamping groove, and the clamp spring is in clamping fit with the clamping groove.

4. The tight-fitting heat dissipation fan of claim 1, wherein the bearing retainer ring end is provided with a support surface extending inwardly and supporting the second bearing.

5. The tight-fitting heat dissipation fan of claim 1, wherein a base is disposed at the bottom of the housing, and the column sleeve is fixedly inserted into the base.

6. The tight-fitting heat dissipation fan of claim 5, wherein the base is a hollow structure with two open ends.

7. The tight-fitting heat dissipation fan of claim 1, wherein the rotor assembly further comprises a rotor and a mounting seat fixed on the rotor, the shaft core is fixedly inserted into the mounting seat, and an end surface of the mounting seat contacts with the first bearing.

8. The tight-fitting heat dissipating fan according to claim 1, wherein the first elastic member is a large elastic spring.

9. The tight-fitting heat dissipating fan according to claim 2, wherein the second elastic member is a small elastic spring.

10. The tight-fitting heat dissipation fan of claim 1, further comprising a stator assembly, wherein a first convex edge is formed on an outer wall of the column jacket, and the stator assembly is sleeved outside the column jacket and supported by the first convex edge.