U.S. patent application number 14/269210 was filed with the patent office on 2015-11-05 for fan impeller balance calibrating method.
This patent application is currently assigned to ASIA VITAL COMPONENTS CO., LTD.. The applicant listed for this patent is ASIA VITAL COMPONENTS CO., LTD.. Invention is credited to Ching-Hang Shen.
Application Number | 20150315917 14/269210 |
Document ID | / |
Family ID | 54354911 |
Filed Date | 2015-11-05 |
United States Patent
Application |
20150315917 |
Kind Code |
A1 |
Shen; Ching-Hang |
November 5, 2015 |
FAN IMPELLER BALANCE CALIBRATING METHOD
Abstract
A fan impeller balance calibrating method includes steps of:
placing a fan impeller onto a measurement platform, the measurement
platform having a controller, a speedometer device and a detection
device being arranged on the measurement platform for detecting the
rotational speed and balance of the fan impeller respectively, the
controller receiving data from the speedometer device and the
detection device to calculate and generate a detection signal to
the measurement platform, according to the received detection
signal, the measurement platform displaying calibration data and
rotational speed data; and adding at least one weight body to the
fan impeller or removing at least one weight body from the fan
impeller according to the calibration data to quickly calibrate the
balance of the fan impeller. The fan impeller balance calibrating
method is advantageous in that the balance calibration time is
shortened and the calibration process is simplified.
Inventors: |
Shen; Ching-Hang; (New
Taipei City, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
ASIA VITAL COMPONENTS CO., LTD. |
New Taipei City |
|
TW |
|
|
Assignee: |
ASIA VITAL COMPONENTS CO.,
LTD.
New Taipei City
TW
|
Family ID: |
54354911 |
Appl. No.: |
14/269210 |
Filed: |
May 5, 2014 |
Current U.S.
Class: |
416/1 |
Current CPC
Class: |
F04D 19/002 20130101;
F01D 5/027 20130101; F01D 5/16 20130101; G01M 1/02 20130101; F04D
29/662 20130101; F04D 25/0606 20130101 |
International
Class: |
F01D 5/16 20060101
F01D005/16 |
Claims
1. A fan impeller balance calibrating method comprising steps of:
placing a fan impeller onto a measurement platform, the measurement
platform having a controller, a speedometer device and a detection
device being arranged on the measurement platform for detecting the
rotational speed and balance of the fan impeller respectively, the
controller receiving data from the speedometer device and the
detection device to calculate and generate a detection signal to
the measurement platform, according to the received detection
signal, the measurement platform displaying calibration data and
rotational speed data; and adding at least one weight body to the
fan impeller or removing at least one weight body from the fan
impeller according to the calibration data to quickly calibrate the
balance of the fan impeller.
2. The fan impeller balance calibrating method as claimed in claim
1, wherein the detection device employs a flashlight to judge the
unbalanced angle of the fan impeller.
3. The fan impeller balance calibrating method as claimed in claim
1, wherein the detection signal contains the calibration data and
the rotational speed data.
4. The fan impeller balance calibrating method as claimed in claim
1, wherein the weight bodies are coupled with the fan impeller
according to the numeral of the calibration data displayed by the
measurement platform.
5. The fan impeller balance calibrating method as claimed in claim
1, wherein the weight bodies have different weight values.
6. The fan impeller balance calibrating method as claimed in claim
1, wherein in the case that the numeral of the calibration data is
higher than a preset balance value of the fan impeller, then the
weight value of the weight bodies is reduced.
7. The fan impeller balance calibrating method as claimed in claim
1, wherein in the case that the numeral of the calibration data is
lower than a preset balance value of the fan impeller, then the
weight value of the weight bodies is increased.
8. The fan impeller balance calibrating method as claimed in claim
1, wherein the weight bodies are made of hardened plastic material
and detachably adhered to an inner side of the fan impeller.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates generally to a fan impeller
balance calibrating method, and more particularly to a fan impeller
balance calibrating method in which according to calibration data,
at least one weight body is added to the fan impeller or at least
one weight body is removed from the fan impeller to quickly
calibrate the balance of the fan impeller.
[0003] 2. Description of the Related Art
[0004] Along with the rapid development of high-tech industries,
the functions of various electronic products have become more and
more powerful. As a result, the electronic components inbuilt in
the electronic products generate a great amount of waste heat in
operation. In general, it is necessary to dispose a heat sink or a
radiating fin assembly on the electronic component to increase heat
dissipation area for enhancing heat dissipation effect. However,
the heat sink or radiating fin assembly can dissipate the heat only
by means of radiation so that the heat dissipation effect is
limited. Therefore, it is necessary to additionally dispose a
cooling fan to carry away the heat of the heat sink or radiating
fin assembly so as to enhance the heat dissipation performance.
Accordingly, the cooling fan is a very important component of the
thermal module. However, in operation, the cooling fan often makes
loud noise or severely vibrates due to some external factors or the
affection of its own structural design. In this case, the working
stability of the electronic component (such as the hard disk) will
be affected. Therefore, in manufacturing, it is necessary to
calibrate the balance of the fan impeller to increase the ratio of
good products.
[0005] In the conventional dynamic balance test of the fan
impeller, in the case that the fan impeller is unbalanced on one
side, a balancing weight is added to the side or removed from the
side and then the dynamic balance test of the fan impeller is again
performed. Such balance test process is repeatedly performed until
the fan impeller is completely balanced. Alternatively, the fan
impeller is drilled to calibrate the balance of the fan
impeller.
[0006] By means of the above method, the balance of the fan
impeller can be achieved. However, in the test, it is necessary to
add the balancing weight to or remove the balancing weight from the
fan impeller to calibrate the balance of the fan impeller. After a
long period of use, the balancing weight added to the fan impeller
is likely to detach from the fan impeller to deteriorate the
balance thereof. This will greatly shorten the lifetime of the fan
and make noise as well as cause vibration of the fan. Furthermore,
the calibration process must be repeatedly performed. This is
time-consuming and complicated. In the case that the fan impeller
is drilled to remove a part of the fan impeller for achieving the
balance, the drilled part of the fan impeller will be structurally
weakened and the stress will concentrate on the weakened part.
Under such circumstance, the structure of the fan impeller will be
destroyed to shorten the lifetime of the fan. According to the
above, the conventional fan impeller balance calibrating method has
the following shortcomings: [0007] 1. The balancing weight is
likely to detach from the fan impeller to make noise and cause
vibration of the fan. [0008] 2. The lifetime of the fan is greatly
shortened. [0009] 3. The structure of the fan impeller is
destroyed. [0010] 4. The calibrating process is complicated. [0011]
5. The calibrating process is time-consuming.
SUMMARY OF THE INVENTION
[0012] It is therefore a primary object of the present invention to
provide a fan impeller balance calibrating method in which
according to calibration data, at least one weight body is added to
the fan impeller or at least one weight body is removed from the
fan impeller to quickly calibrate the balance of the fan
impeller.
[0013] It is a further object of the present invention to provide
the above fan impeller balance calibrating method in which the
balance calibration time is shortened.
[0014] It is still a further object of the present invention to
provide the above fan impeller balance calibrating method in which
the calibration process is simplified.
[0015] It is still a further object of the present invention to
provide the above fan impeller balance calibrating method, which
can achieve the balance of the fan impeller without destroying the
structure of the fan impeller. Therefore, the lifetime of the fan
is prolonged.
[0016] To achieve the above and other objects, the fan impeller
balance calibrating method of the present invention includes steps
of: placing a fan impeller onto a measurement platform, the
measurement platform having a controller, a speedometer device and
a detection device being arranged on the measurement platform for
detecting the rotational speed and balance of the fan impeller
respectively, the controller receiving data from the speedometer
device and the detection device to calculate and generate a
detection signal to the measurement platform, according to the
received detection signal, the measurement platform displaying
calibration data and rotational speed data; and adding at least one
weight body to the fan impeller or removing at least one weight
body from the fan impeller according to the calibration data to
quickly calibrate the balance of the fan impeller.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The structure and the technical means adopted by the present
invention to achieve the above and other objects can be best
understood by referring to the following detailed description of
the preferred embodiments and the accompanying drawings,
wherein:
[0018] FIG. 1 is a perspective view of a preferred embodiment of
the present invention, showing that a fan impeller is to be
balance-calibrated;
[0019] FIG. 2 is a perspective view of the preferred embodiment of
the present invention, showing that the fan impeller is
balance-calibrated;
[0020] FIG. 3 is a perspective view of the preferred embodiment of
the present invention, showing that a weight body is added into the
fan impeller or removed from the fan impeller;
[0021] FIG. 4 is a flow chart of the fan impeller balance
calibrating method of the present invention; and
[0022] FIG. 5 is a block diagram of the preferred embodiment of the
present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0023] Please refer to FIGS. 1 to 5. FIG. 4 is a flow chart of a
preferred embodiment of the fan impeller balance calibrating method
of the present invention. According to the preferred embodiment,
the fan impeller balance calibrating method of the present
invention includes steps of:
[0024] 100. placing a fan impeller 1 onto a measurement platform 2,
the measurement platform 2 having a controller 20, a speedometer
device 21 and a detection device 22 being arranged on the
measurement platform 2 for detecting the rotational speed and
balance of the fan impeller 1 respectively, the controller 20
receiving the data from the speedometer device 21 and the detection
device 22 to calculate and generate a detection signal to the
measurement platform 2, according to the received detection signal,
the measurement platform 2 displaying calibration data and
rotational speed data; and
[0025] 101. adding at least one weight body 3 to the fan impeller 1
or removing at least one weight body 3 from the fan impeller 1
according to the calibration data to quickly calibrate the balance
of the fan impeller 1.
[0026] In step 100, the fan impeller 1 is placed onto a test
section 23 of the measurement platform 2 for test (with reference
to FIGS. 1 and 2). One face of the fan impeller 1 faces the
speedometer device 21 on the measurement platform 2, while the
other face of the fan impeller 1 right faces the detection device
22 on the measurement platform 2. When the dynamic balance test of
the fan impeller 1 starts, the speedometer device 21 drives the fan
impeller 1 in the test section 23, whereby the speedometer device
21 drives the fan impeller 1 to rotate and at the same time detects
the rotational speed of the fan impeller 1. Simultaneously, the
detection device 22 starts to detect the balance of the fan
impeller 1. The detection device 22 employs a flashlight to quickly
judge the unbalanced angle of the fan impeller 1. The controller 20
receives the rotational speed data from the speedometer device 21
and the balance data from the detection device 22 to calculate and
generate the detection signal to the measurement platform 2.
According to the received detection signal, a display device 24 on
the measurement platform 2 displays the calibration data and
rotational speed data. The detection signal contains the
calibration data and rotational speed data. The controller 20 is
electrically connected to the speedometer device 21, the detection
device 22 and the display device 24.
[0027] In step 101, according to the calibration data displayed on
the display device 24, an operator can quickly decide the number of
the weight bodies 3 added to the fan impeller 1 (with reference to
FIGS. 2 and 3). In other words, in the case that the numeral of the
calibration data displayed on the display device 24 is higher than
a preset balance value of the fan impeller 1, then the weight value
of the weight bodies 3 is reduced according to the calibration
data. In the case that the numeral of the calibration data
displayed on the display device 24 is lower than the preset balance
value of the fan impeller 1, then the weight value of the weight
bodies 3 is increased according to the calibration data. In the
conventional calibrating method, it is necessary to repeatedly
perform the dynamic balance test to the unbalanced side of the fan
impeller until the fan impeller 1 is totally balanced. Therefore,
the conventional calibrating method is laborious, time-consuming
and complicated. In contrast, in the present invention, the
calibration data are displayed on the display device 24 to enable
an operator to quickly decide whether the weight value of the
weight bodies 3 of the fan impeller 1 should be increased or
reduced. Accordingly, the balance calibration time is shortened and
the calibration process is simplified.
[0028] The weight bodies 3 are made of hardened plastic material.
The weight bodies 3 are detachably adhered to an inner side of the
fan impeller 1. The weight bodies 3 have different weight values
and are coupled with the fan impeller 1 according to the numeral of
the calibration data displayed on the display device 24 of the
measurement platform 2.
[0029] In addition, it should be noted that the weight bodies 3 are
in a soft adhesive state when not used or used. The weight bodies 3
have better adhesion so that when adding the weight bodies 3 into
the fan impeller 1, the weight bodies 3 can be quickly securely
adhered to the fan impeller 1. By means of projecting light onto
the weight bodies 3, the weight bodies 3 can quickly harden to
integrally combine with the fan impeller 1. Accordingly, the
balance of the fan impeller 1 can be achieved without destroying
the structure of the fan impeller 1. In contrast, in the
conventional calibrating method, it is necessary to excavate a part
of the fan impeller for achieving the balance of the fan impeller.
In comparison with the conventional balance calibrating method, the
balance calibration time of the present invention is shortened and
the calibration process is simplified to greatly prolong the
lifetime of the fan.
[0030] In conclusion, in comparison with the conventional balance
calibrating method, the present invention has the following
advantages: [0031] 1. The calibration process is simplified. [0032]
2. The lifetime of the fan is greatly prolonged. [0033] 3. The
balance calibration time is shortened.
[0034] The present invention has been described with the above
embodiments thereof and it is understood that many changes and
modifications in the above embodiments can be carried out without
departing from the scope and the spirit of the invention that is
intended to be limited only by the appended claims.
* * * * *