A fan housing structure

Abstract

The utility model relates to fan technical field provides a fan casing structure, including outer frame and bottom disc, the outer frame has annular wall part, the annular wall part one side inner periphery evenly sets up multiple jack hole, the bottom disc sets up in annular wall part inboard, the bottom disc includes center disc part and even distribution in the multiple static wings of center disc part outer periphery, the outer end of static wing inserts in the corresponding jack hole, the surface of center disc part is covered with protection part, the utility model can guarantee the strength of fan, satisfies high -speed requirement to strengthen the anticorrosive property of casing.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a fan housing structure. Background Technology

[0002] Fans are a common heat dissipation device, widely used in computers, automotive electronics, medical equipment, and industrial equipment.

[0003] The existing fan structure includes a housing, a motor mounted in the housing, and an impeller mounted on the motor. Currently, fan housings are generally made of resin molding, but with increasingly demanding heat dissipation requirements, all-resin housings cannot meet the demands of high-speed operation.

[0004] Fan casings made of metal (such as aluminum) can meet high-speed requirements, and a protective layer is applied to the outside of the metal to prevent corrosion. However, prolonged outdoor use can cause the protective layer to break down, leading to corrosion and wear of the metal, resulting in the failure of the protection and reducing the fan's lifespan. Utility Model Content

[0005] This utility model mainly addresses the technical problems of existing fan housings made of metal materials, which, under prolonged outdoor use, can lead to damage to the protective layer of the housing, corrosion and wear of the metal material, resulting in protective failure and reduced fan lifespan. It proposes a fan housing structure to ensure fan strength, meet high-speed requirements, and enhance the corrosion resistance of the housing.

[0006] This utility model provides a fan housing structure, including an outer frame and a chassis; The outer frame has an annular wall portion, and a plurality of insertion holes are evenly arranged on the inner circumference of one side of the annular wall portion; the chassis is disposed inside the annular wall portion. The chassis includes a central disk and multiple stationary wings evenly distributed around the outer periphery of the central disk; The outer end of the static wing is inserted into the corresponding socket; The surface of the central disk is covered with a protective layer.

[0007] Preferably, the chassis is made of metal, and the outer frame and protective parts are made of resin.

[0008] Preferably, the central disk has multiple through holes.

[0009] Preferably, the central disk has a concave-convex structure; the concave-convex structure protrudes to one side of the central disk and is recessed to the other side.

[0010] Preferably, a wire groove is connected to the central disk portion; The length of the wire guide groove is greater than or equal to half the length of the stationary wing.

[0011] Preferably, the outer end of the static wing is an insertion part, and a portion of the insertion part is inserted into the insertion hole; The angle α between the insertion part and the stationary wing is 20-30°.

[0012] Preferably, a notch is provided at the connection between the stationary wing and the central disk.

[0013] Preferably, the outer periphery of the protective part has a plurality of protruding structures evenly arranged; The protruding structure mates with the notch in the stator.

[0014] Preferably, a bearing sleeve is located at the center of the central disk.

[0015] Preferably, the protective part has an annular protrusion at the middle position; The annular protrusion covers the lower part of the bearing sleeve.

[0016] This utility model provides a fan housing structure, including an outer frame and a chassis. The chassis includes a central disc and multiple stationary vanes evenly distributed around the outer periphery of the central disc. The outer ends of the stationary vanes are inserted into corresponding holes, increasing the fan's strength. The surface of the central disc is covered with a protective layer. The chassis, made of metal, ensures the fan's strength and meets high-speed requirements. The resin protective layer, by wrapping the central disc of the chassis with resin, enhances the housing's corrosion resistance and prevents the metal from being corroded and worn. Multiple through holes are provided on the central disc, reducing the fan's weight, lowering costs, and increasing fastening strength. The central disc has a concave-convex structure; the resin-wrapped concave-convex structure locks with the metal central disc, increasing rotational torque. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the fan housing structure provided by this utility model; Figure 2 This is a schematic diagram of the outer frame provided by this utility model; Figure 3 This is a schematic diagram of the chassis structure provided by this utility model; Figure 4 This is a schematic diagram of the structure of the protective part provided by this utility model.

[0018] Reference numerals: 1. Outer frame; 2. Chassis; 3. Protective part; 101. Annular wall; 102. Insertion hole; 201. Central disc; 202. Static wing; 203. Through hole; 204. Concave-convex structure; 205. Notch; 206. Wire groove; 207. Bearing sleeve; 301. Protruding structure; 302. Annular protrusion. Detailed Implementation

[0019] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0020] like Figure 1 As shown in the figure, a fan housing structure provided by this utility model embodiment includes an outer frame 1 and a chassis 2.

[0021] like Figure 2 As shown, the outer frame 1 has an annular wall portion 101, and a plurality of insertion holes 102 are evenly arranged on the inner circumference of one side of the annular wall portion 101; the chassis 2 is disposed inside the annular wall portion 101.

[0022] like Figure 3 As shown, the chassis 2 includes a central disk portion 201 and a plurality of stationary vanes 202 evenly distributed around the outer periphery of the central disk portion 201; the outer ends of the stationary vanes 202 are inserted into corresponding insertion holes 102 to increase the strength of the fan.

[0023] The surface of the central disc 201 is covered with a protective portion 3. The chassis 2 is made of metal, specifically aluminum, and can be manufactured using a metal injection molding process. The outer frame 1 and the protective portion 3 are made of resin and manufactured using a resin molding process. The use of metal for the chassis 2 ensures the strength of the casing and fan, meeting high-speed requirements. The resin material of the protective portion 3 effectively encapsulates and protects the metal material of the central disc 201, providing excellent corrosion resistance and preventing corrosion and wear.

[0024] Multiple through holes 203 are formed on the central disc portion 201. The presence of multiple through holes 203 reduces the weight of the fan and lowers costs. Simultaneously, the through holes 203 are also encased in resin by the protective portion 3, increasing the fastening strength. The central disc portion 201 has a concave-convex structure 204; the concave-convex structure 204 protrudes to one side and is recessed to the other side of the central disc portion 201. The resin encasing the concave-convex structure 204 in the protective portion 3 forms a locking connection with the metal central disc portion 201, increasing the rotational torque.

[0025] A wire guide groove 206 is connected to the central disc 201; the length of the wire guide groove 206 is greater than or equal to half the length of the stator 202. The length of the wire guide groove 206 is designed to not affect the airflow and reduce noise, while preventing water intrusion; the wire guide groove 206 is coated with adhesive to ensure the fan's airtightness.

[0026] The outer end of the stationary wing 202 is an insertion part, and part of the insertion part is inserted into the insertion hole 102; the angle α between the insertion part and the stationary wing 202 is 20-30°, and this angle range can improve the efficiency of the wind tunnel.

[0027] A notch 205 is provided at the connection between the stationary wing 202 and the central disk 201.

[0028] like Figure 4 As shown, the outer periphery of the protective part 3 has a plurality of evenly arranged protruding structures 301; the protruding structures 301 are connected to the notches 205 of the stator 202. After the notches 205 are formed, they are covered with resin by the protruding structures 301, and the covered protruding structures 301 coincide with the thickness direction of the stator 202. The notches 205 and the protruding structures 301 can reduce the weight of the fan and increase the bonding strength with the resin.

[0029] The central disc portion 201 has a bearing sleeve 207 at its center; the protective portion 3 has an annular protrusion 302 at its center; the annular protrusion 302 covers the lower part of the bearing sleeve 207. The resin annular protrusion 302 can isolate the metal bearing sleeve 207 from the electronic components on the circuit board, ensuring the safety of the fan.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fan housing structure, characterized in that, Includes the outer frame (1) and the chassis (2); The outer frame (1) has an annular wall (101), and a plurality of insertion holes (102) are evenly arranged on the inner circumference of one side of the annular wall (101); the chassis (2) is disposed inside the annular wall (101); The chassis (2) includes a central disk (201) and a plurality of stator wings (202) evenly distributed around the outer periphery of the central disk (201). The outer end of the static wing (202) is inserted into the corresponding socket (102); The surface of the central disk (201) is covered with a protective part (3).

2. The fan housing structure according to claim 1, characterized in that, The chassis (2) is made of metal, and the outer frame (1) and protective part (3) are made of resin.

3. The fan housing structure according to claim 1, characterized in that, Multiple through holes (203) are provided on the central disk (201).

4. The fan housing structure according to claim 3, characterized in that, The central disk (201) has a concave-convex structure (204); the concave-convex structure (204) protrudes to one side of the central disk (201) and is recessed to the other side.

5. The fan housing structure according to claim 1, characterized in that, A wire groove (206) is connected to the central disk (201). The length of the wire groove (206) is greater than or equal to half the length of the stator (202).

6. The fan housing structure according to claim 1, characterized in that, The outer end of the static wing (202) is an insertion part, and part of the insertion part is inserted into the insertion hole (102); The angle α between the insertion part and the static wing (202) is 20-30°.

7. The fan housing structure according to claim 1, characterized in that, A notch (205) is provided at the connection between the stationary wing (202) and the central disk (201).

8. The fan housing structure according to claim 7, characterized in that, The outer periphery of the protective part (3) has a plurality of protruding structures (301) evenly arranged. The protruding structure (301) docks with the notch (205) of the static wing (202).

9. The fan housing structure according to claim 1, characterized in that, The central disk (201) has a bearing sleeve (207) at its middle position.

10. The fan housing structure according to claim 9, characterized in that, The protective part (3) has an annular protrusion (302) at the middle position. The annular protrusion (302) covers the lower part of the bearing sleeve (207).

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