Radiator fan
A technology for cooling fans and bearings, which is applied to the components of pumping devices for elastic fluids, non-variable-capacity pumps, pump devices, etc. problems, and achieve the effect of avoiding structural damage, good working noise and prolonging life.
Inactive Publication Date: 2009-06-03
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF0 Cites 12 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] However, since this kind of fan has only a single bearing sleeved on the lower part of the rotating shaft, when the rotor rotates, it can only limit the lower part of the rotating shaft
If the speed of the fan is too fast, since there is no object on the upper part of the shaft to support it, it is easy to cause the fan blade group to vibrate, which will greatly increase the working noise of the fan
In addition, this vibration may also cause structural damage to the fan, thereby reducing the life of the fan
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0012] As shown in Figures 1-3, the heat dissipation fan of the present invention is used to dissipate heat to electronic components (not shown), and it includes a casing (not shown), a stator 20 fixed in the casing, and a stator 20 movably placed in the casing. The inner rotor 30 and an upper bearing 60 and a lower bearing 50 are housed in the housing and support the upper and lower parts of the rotor 30 respectively. The upper bearing 60 and the lower bearing 50 can be any type of bearings known to those skilled in the art, such as ball bearings, oil-lubricated bearings or dynamic pressure bearings and the like.
[0013] see figure 2 and image 3 , the casing includes a frame body 10 and an upper cover 40 detachably mounted on the frame body 10 . The frame body 10 includes a square lower plate 12 , a square upper plate 14 parallel to the lower plate 12 , and an annular side wall 16 vertically connecting the upper plate 14 and the lower plate 12 . The sidewall 16 defines a...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a radiator fan which comprises a casing, a stator fixed in the casing, a lower bearing contained at the lower part of the casing and a rotor installed in the casing. The rotor comprises a rotating shaft and a fan blade group combined to the upper part of the rotating shaft; the lower bearing is sleeved at the lower part of the rotating shaft; the radiator fan also comprises an upper bearing contained at the upper part of the casing; and the upper bearing is sleeved at the upper part of the rotating shaft. Compared with the prior art, the radiator fan is provided with two bearings which are respectively sleeved at the upper part and the lower part of the rotor bearing and can play the role of supporting the upper part and the lower part of the rotor respectively when the rotor rotates, so that can prevent the fan blade group from generating vibration when the fan blade group is in high speed rotation, and the working noise of the fan can be well controlled. In addition, the structure damage of the fan caused by the vibration of the rotor can be avoided due to no vibration, so the service life of the fan is correspondingly prolonged.
Description
technical field [0001] The invention relates to a cooling fan, in particular to a cooling fan used for cooling electronic components. Background technique [0002] In recent years, with the development of the electronics industry, the performance of electronic components has been continuously improved, and the calculation speed has become faster and faster. The calculation speed of the internal chipset has been continuously improved, the number of chips has continued to increase, and the heat emitted by the chips has also increased accordingly. If If the heat is not dissipated in time, the performance of the electronic components will be greatly affected, and the computing speed of the electronic components will be reduced. As the heat continues to accumulate, the electronic components may be burned, so the electronic components must be dissipated. [0003] For this reason, a heat dissipation fan is usually installed near the electronic components, and the airflow generated ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F04D25/08F04D29/056F04D29/52F04D29/32
Inventor 朱锦宏
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD