Low-vibration long-service-life axial flow fan outer frame

Abstract

The utility model discloses a low-vibration long-service-life axial flow fan outer frame, which comprises a metal embedded part, a metal outer frame and a metal inner frame, the metal embedded part comprises a ring body, a center sleeve arranged in the middle of the ring body and a flow guide assembly arranged on the periphery of the ring body, and the center sleeve is connected with the ring body through a connecting rib assembly; the plastic frame body is provided with a mounting hole penetrating in the height direction, and the plastic frame body is formed on the periphery of the flow guide assembly in an injection molding mode. According to the low-vibration long-service-life axial flow fan outer frame, vibration can be reduced, heat dissipation is improved, and the service life of a fan is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of axial flow fan, especially relates to a low vibration long life axial flow fan outer frame. BACKGROUND

[0002] The axial flow fan is a kind of air-cooled cooling fan commonly used in industrial applications, due to its simple structure, light weight, cheap, good heat dissipation effect and other advantages, is widely used in automobile engine cooling, industrial ventilation and air conditioning cooling and other fields.

[0003] The axial flow fan outer frame in prior art is integrally formed plastic part, copper bush is embedded in the inside of plastic part, to support rotor assembly and stator winding, but the contact area of copper bush and outer frame of the structure is small, when fan works, vibration is prone to, and slow heat dissipation. UTILITY MODEL CONTENT

[0004] In order to solve the above problems, the utility model aims at providing a low vibration long life axial flow fan outer frame, which can improve the service life of axial flow fan.

[0005] Based on the above problems, the technical scheme provided by the utility model is:

[0006] A low vibration long life axial flow fan outer frame, comprising:

[0007] Metal embedded part, including ring body, center sleeve arranged in the middle of the ring body and flow guide assembly arranged on the outer periphery of the ring body, the center sleeve is connected with the ring body through connecting rib assembly;

[0008] Plastic frame body with mounting hole penetrating along the height direction, the plastic frame body is injection molded on the outer periphery of the flow guide assembly.

[0009] In some embodiments, the flow guide assembly includes a plurality of flow guide fins arranged at intervals along the circumference of the ring body.

[0010] In some embodiments, the plurality of flow guide fins are arranged at uniform rotation angles along the circumference of the ring body.

[0011] In some embodiments, the outer end of the flow guide fin is provided with a connecting block for injection positioning.

[0012] In some embodiments, the connecting rib assembly includes a plurality of connecting ribs arranged at intervals along the outer periphery of the center sleeve.

[0013] In some embodiments, at least one of the connecting ribs is provided with a wire arrangement hole for wire arrangement.

[0014] In some embodiments, the metal insert is an aluminum alloy insert.

[0015] Compared with the prior art, the fan outer frame has the advantages that:

[0016] (1) The fan outer frame is formed by injection molding of the metal insert and the plastic frame body, the stator assembly and the rotor assembly of the fan are installed on the center sleeve of the metal insert, vibration generated during operation of the fan is reduced, and the strength of the outer frame is ensured;

[0017] (2) The metal insert can effectively conduct heat generated inside the fan, the internal temperature rise is reduced, and the service life of the fan is improved;

[0018] (3) The metal insert is made of aluminum alloy material, so that the fan outer frame has higher strength and lighter weight. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced, and the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0020] Figure 1 It is one of the structure schematic diagram of the utility model low-vibration long-service-life axial flow fan outer frame embodiment;

[0021] Figure 2 It is the second structure schematic diagram of the embodiment of the utility model;

[0022] Figure 3 It is the structure schematic diagram of the plastic frame body in the embodiment of the utility model;

[0023] Figure 4 It is the structure schematic diagram of the metal insert in the embodiment of the utility model;

[0024] Among them:

[0025] 1, plastic frame body; 1-1, mounting hole;

[0026] 2, metal insert; 2.1, ring body; 2.2, center sleeve; 2.3, flow guide piece; 2-4, connecting rib; 2-4a, wire arrangement hole; 2-5, connecting block. DETAILED DESCRIPTION

[0027] The above scheme is further described below in combination with specific examples. It should be understood that the examples are used to illustrate the present application and do not limit the scope of the present application. The implementation conditions used in the examples can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not mentioned are usually the conditions in conventional experiments.

[0028] As shown in Figure 1 and Figure 2 , it is a structural schematic diagram of an embodiment of the present application, and provides a low-vibration long-life axial fan outer frame, which comprises a metal insert 2 and a plastic frame 1 injection molded on the outer periphery of the metal insert 2.

[0029] As shown in Figure 4 , the metal insert 2 comprises a ring body 2-1, a center sleeve 2-2 arranged at the middle part of the ring body 2-1, and a flow guide assembly arranged at the outer periphery of the ring body 2-1, wherein the center sleeve 2-2 is connected with the ring body 2-1 through a connecting rib assembly, and a stator assembly and a rotor assembly of the fan are installed on the center sleeve 2-2, as shown in Figure 3 , the plastic frame 1 has a mounting hole 1-1 penetrating in the height direction, and the plastic frame 1 is injection molded on the outer periphery of the flow guide assembly. Preferably, the metal insert 2 is an aluminum alloy insert.

[0030] The flow guide assembly comprises a plurality of flow guide vanes 2-3 arranged at a circumferential interval along the ring body 2-1. In this example, the plurality of flow guide vanes 2-3 are arranged at a uniform rotational angle and uniformly spaced along the circumferential direction of the ring body 2-1.

[0031] In order to facilitate the injection molding of the plastic frame 1 and the metal insert 2, a connecting block 2-5 for injection positioning is arranged at the outer end of the flow guide vane 2-3.

[0032] The connecting rib assembly comprises a plurality of connecting ribs 2-4 arranged at an interval along the outer periphery of the center sleeve 2-2. In order to facilitate wire arrangement, a wire arrangement hole 2-4a for wire arrangement is arranged on at least one connecting rib 2-4, a wire can pass through the wire arrangement hole 2-4a, or a wire arrangement needle can be inserted into the wire arrangement hole 2-4a for wire arrangement.

[0033] In summary, the fan outer frame can reduce vibration, facilitate heat dissipation, and improve service life.

[0034] The above examples are only used to illustrate the technical concept and characteristics of the present application, and the purpose is to enable personnel familiar with this technology to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent transformation or modification made in accordance with the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A low-vibration, long-life axial flow fan frame, characterized in that: The application relates to a metal insert embedded in a plastic frame body. The metal insert comprises a ring body, a center sleeve arranged in the middle of the ring body and a flow guide assembly arranged at the periphery of the ring body, and the center sleeve is connected with the ring body through a connecting rib assembly. The plastic frame body is injection molded on the periphery of the flow guide assembly.

2. The low-vibration long-life axial fan frame according to claim 1, characterized by: The flow guide assembly comprises a plurality of flow guide fins arranged at intervals in the circumferential direction of the ring body.

3. The low-vibration long-life axial fan frame according to claim 2, characterized by: The plurality of flow guide fins are arranged at uniform rotation angles and at intervals in the circumferential direction of the ring body.

4. The low-vibration long-life axial fan frame according to claim 2, characterized by: The outer end of the flow guide fin is provided with a connecting block for injection positioning.

5. The low vibration, long life, axial fan frame of claim 1 wherein: The connecting rib assembly comprises a plurality of connecting ribs arranged at intervals at the periphery of the center sleeve.

6. The low vibration, long life, axial fan housing of claim 5, wherein: At least one of the connecting ribs is provided with a wire arranging hole for wire arrangement.

7. The low vibration and long life axial fan frame according to claim 1, wherein: The metal insert is an aluminum alloy insert.

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