CN212928251U - Fan frame copper-in-tube of radiator fan - Google Patents

Abstract

The utility model relates to a radiator fan's fan frame copper well pipe is that well pipe fixed strength to solving current like product is not high to and the plastic parcel area is great when well pipe is moulded plastics and is leaded to the less technical problem of inner space and design. A copper intermediate pipe is arranged in the center of a fan frame of the cooling fan, one end of the copper intermediate pipe is connected with the fan frame into a whole through plastic package during injection molding, and a shaft pipe hole is formed in the copper intermediate pipe; the fixed one end of copper well pipe is equipped with the casing, and the casing is connected as an organic whole through riveting, welding or whole machine-shaping with copper well pipe, and the plastic parcel when the copper well pipe is moulded plastics is even as an organic whole with the fan frame, and the casing is even as an organic whole through plastic parcel when moulding plastics and fan frame. The copper-medium pipe is wrapped and fixed in the fan frame through the plastic of the shell during injection molding, and the shell and the copper-medium pipe are firmly combined together, so that the strength of the fan frame is effectively increased; the shape of the shell adopts a round shape, a square shape or other shapes, and the shell can be provided with holes or not.

Description

Fan frame copper-in-tube of radiator fan

Technical Field

The utility model relates to a radiator fan is radiator fan's fan frame copper well pipe.

Background

The heat dissipation fan generally refers to a fan used for heat dissipation of main board devices such as a CPU and a graphics card, and some of the heat dissipation fans are further provided with heat dissipation fins, which mainly aim to conduct heat and blow the heat to nearby air, so as to achieve a cooling effect. At present, the application field of electronic products is more and more extensive, the equipment installed by the electronic products is more and more precise, the cooling fan is applied to equipment such as a server, and as the server mostly adopts mechanical hard disks which are very sensitive to vibration, in order to ensure the stable operation of the products, the requirements on the strength and the vibration of the products are more and more high, and the main structural requirement is that the requirement on the bonding strength of the middle pipe and the fan frame plastic is more and more high. The structure of the fixing bearing of the outer frame of the cooling fan mainly comprises a plastic-medium pipe structure and a copper-medium pipe structure, and the other structure adopts an iron-medium pipe structure, such as application number 201921227641.5 disclosed in Chinese patent literature, granted notice date 2020.05.12 and the name of the utility model, namely 'fan frame iron-medium pipe of the cooling fan'. However, the middle tube and the like also have the problems that the traditional common technology for enhancing the bonding strength of the middle tube and the fan frame plastic is mainly the technology of knurling or grooving on the copper middle tube, so that the area of the middle tube wrapped by the fan frame plastic is large, and a sufficient space cannot be provided for some small-size cooling fans.

Disclosure of Invention

In order to overcome the defects, the utility model aims to provide a strenghthened type radiator fan's fan frame copper well pipe to this field, make its well pipe fixed strength who solves current like product not high to and well pipe great technical problem that leads to the inner space less when moulding plastics of plastic parcel area. The purpose is realized by the following technical scheme.

A hollow hole is formed in one side of a fan frame of a heat radiation fan, a copper intermediate pipe is arranged in the center of the fan frame on the side, one end of the copper intermediate pipe is connected with the fan frame into a whole through plastic package during injection molding, and a shaft pipe hole is formed in the copper intermediate pipe; the shaft tube hole of the copper middle tube is used for inserting and fixing the shaft core of the fan blade, and the outer diameter of the shaft tube of the copper middle tube is used for being sleeved and fixed with the fixing frame with the coil. The fixed one end of pipe is equipped with the casing in its structural design main points are pipe in the copper, and the casing is as an organic whole through riveting, welding or whole machine-shaping parallel connection with pipe in the copper, and the plastic parcel when pipe in the copper is through moulding plastics links as an organic whole with fan frame simultaneously, and the casing is through plastic parcel when moulding plastics and fan frame link as an organic whole. Therefore, the shell is additionally arranged at the bottom of the copper-in-pipe through the structure, so that the copper-in-pipe can be wrapped and fixed in the fan frame through the plastic of the shell during injection molding, the shell and the copper-in-pipe are firmly combined together, and the strength of the fan frame is effectively improved; the casing material adopts SPCC, SPCD, SECC, SECD or other materials, and the shape of casing adopts circular, square or other shapes, also can trompil or not trompil on the casing, and the disk body of following casing sets up the through-hole promptly, and it is further firm when its an organic whole is moulded plastics to be convenient for.

The shell is a disk body, a ring groove is formed in the top of the disk body, and a copper middle pipe is sleeved into a central hole fixed in the disk body from the top of the disk body. The circular shell structure is adopted, and the firmness of the shell, the copper-medium pipe and the fan frame after injection molding is further enhanced by the ring groove at the top of the disk body.

The central siphon external diameter of pipe is equipped with the spacing step circle of diameter increase in the copper, and the junction one end external diameter of pipe and casing in the copper is equipped with the annular knurl ring gear, and the annular knurl ring gear of pipe in the copper is fixed in the fan frame through the plastic parcel when moulding plastics. Above-mentioned structure is convenient for the mount installation of copper in the pipe external diameter to and further improve the firmness after copper in the pipe is moulded plastics with the fan frame together through the annular knurl ring.

The copper middle pipe is replaced by a metal middle pipe. The copper-in-pipe can also be made of iron or other metal materials.

The utility model has reasonable structural design, feasible production mode, good firmness of the fan frame and high overall strength; the heat radiating fan is suitable for producing and using the middle fan frame and the middle pipe of the heat radiating fan and further improving similar products.

Drawings

Fig. 1 is a schematic sectional view of a fan frame according to an embodiment of the present invention.

Fig. 2 is a perspective view of the copper-in-pipe and housing assembly shown in fig. 1.

Fig. 3 is a schematic perspective view of fig. 1.

Figure number and name: 1. the fan frame, 2, copper well pipe, 201, spacing step circle, 202, annular knurl ring gear, 3, casing.

Detailed Description

The structure and use of the present invention will now be further described with reference to the accompanying drawings. As shown in fig. 1-3, a hollow hole is formed in one side of a fan frame 1 of the heat dissipation fan, a copper intermediate pipe 2 is arranged in the center of the fan frame on the side, one end of the copper intermediate pipe is connected with the fan frame into a whole through plastic wrapping during injection molding, and a shaft pipe hole is formed in the copper intermediate pipe. Simultaneously, the central siphon external diameter of pipe is equipped with the spacing step circle 201 that the diameter increases in the copper, and the junction one end external diameter of pipe and casing in the copper is equipped with annular knurl ring gear 202, and the annular knurl ring gear of pipe is fixed in the fan frame through the plastic parcel when moulding plastics in the copper. The fixed one end of above-mentioned copper well pipe is equipped with casing 3, and casing and copper well pipe are connected as an organic whole through riveting, welding or whole machine-shaping, and the plastic parcel when the copper well pipe is moulded plastics is even as an organic whole with the fan frame, and the plastic parcel when the casing was moulded plastics is even as an organic whole with the fan frame. The shell is a circular tray body, a ring groove is formed in the top of the tray body, a copper middle pipe is sleeved into a center hole which is fixed in the tray body from the top of the tray body, and the copper middle pipe can be replaced by a metal middle pipe made of iron and other metal materials.

When the fan blade is used, the shaft core of the fan blade is inserted into and fixed in the shaft tube hole of the copper-in-tube, and bearings are arranged at two ends of the shaft core in the shaft tube hole; the fixing frame of the coil is sleeved in a limiting step ring fixed at the outer diameter of the shaft tube of the copper-in-tube, the fixing mode is mainly realized through a dispensing mode, and a circuit board is arranged below the fixing frame.

To sum up, the structure of the fan frame copper-in-pipe effectively enhances the bonding strength of the middle pipe and the fan frame, reduces the vibration generated by the motor when the fan operates, and is a novel fan-in-pipe structure. This fan frame copper-in-pipe increases (riveting, welding or whole processing come out) a casing in copper-in-pipe bottom on the basis of traditional single copper-in-pipe, and when the fan frame was moulded plastics, the plastic was lived the whole parcel of casing, can effectively increase the holistic intensity of fan frame, reduced the area of fan frame plastic parcel, left sufficient great space for in the fan frame.

Claims (4)

1. A hollow hole is formed in one side of a fan frame (1) of a cooling fan, a copper middle pipe (2) is arranged in the center of the fan frame on the side, one end of the copper middle pipe is connected with the fan frame into a whole through plastic package during injection molding, and a shaft pipe hole is formed in the copper middle pipe; the fan frame is characterized in that a shell (3) is arranged at one fixed end of the copper middle pipe (2), the shell and the copper middle pipe are connected into a whole through riveting, welding or integral processing, the copper middle pipe is connected with the fan frame into a whole through plastic packages during injection molding, and the shell is connected with the fan frame into a whole through the plastic packages during injection molding.

2. The copper-in-pipe frame of a heat dissipation fan as defined in claim 1, wherein the housing (3) is a disk body, a ring groove is formed at the top of the disk body, and the copper-in-pipe (2) is inserted into and fixed to a central hole of the disk body from the top of the disk body.

3. The fan frame copper-in-pipe of the heat dissipation fan as recited in claim 1, wherein the outer diameter of the shaft pipe of the copper-in-pipe (2) is provided with a limit step ring (201) with an increased diameter, the outer diameter of one end of the joint of the copper-in-pipe and the housing is provided with a knurled ring gear (202), and the knurled ring gear of the copper-in-pipe is fixed in the fan frame by plastic wrapping during injection molding.

4. The fan frame copper-in-pipe of the heat dissipation fan as recited in claim 1, wherein the copper-in-pipe (2) is replaced by a metal-in-pipe.

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