TW200407506A - Method for controlling noise value of fan rotation - Google Patents

Abstract

The present invention discloses a method for controlling the noise value of fan rotation, in which a predefined temperature-controlled graph is used to precisely estimate the fan rotation and to anticipate the noise value caused by the fan and the corresponding temperature change of CPU, thereby determining the design of fan with optimal heat dissipating effect and noise value, and thus reducing the tremendous labor and time to determine a suitable rotation speed in the conventional try and error manner.

Description

200407506 V. Description of the invention α) [Field of the invention] The present invention relates to a method for controlling the noise value of a fan speed, especially a method for estimating the fan noise value by setting a temperature control pattern. [Background of the Invention] Since the beginning of the kPent i um generation, the operating frequency of the central processing unit (cpu) has risen linearly, and the original 1 3 3 Μ Η z has developed to the fastest 2.5 GHz, which has experienced only a few Time of year. Although the current mainstream CPUs all use 0.1 8 micron or even 0.13 micron process technology, but because the high-speed CPU is composed of many transistors, the amount of beans is much higher than that of the CPU. . Nowadays, the power of the central processing unit is more than 40W, and the power in the pentium 4 above 2GHz is as high as 70W. Such high power consumption directly leads to a surge in heat generation of the central processing unit. Without taking good heat dissipation measures, it can't be timely; so == big! Heat takes away ’the central processing unit? , Office :. For example, the mold fan is a good fan for the migration of the old rabbit and the field inhibitor. For the entire mouth, this is a heat dissipation key. ^ ^ Personal familiarity X A very important

Once, however, as the CPU's operating frequency continues to increase, Zhigongli also rapidly increased. Therefore, ~, ask, ^ Λ ,, = high fan speed or install more fans, two: = = extreme increase or increase in the number of fans. & &Amp; & Ί 心 政 果; but with the increase of wind pairs, this will accompany it, and it will also be related to the speed of the fan and the sound produced

V. Description of the Invention (2) Yiping: ‘is the current goal of the fans. Species: ⑴Improving the fan bearing (2) The method of reducing the wind can be roughly divided into the following two. According to the fan bearing classification, 1 genera can be transferred. In the first method, the fan, the ball bearing fan and the magnetic fan are divided into three types: the oil-bearing shaft belongs to the genus / genus, and the former two have sliding friction and rolling friction in operation, so the fan reduces the bearing. The noise value produced by the grinding rod is relatively large; while the magnetic levitation is mature and the cost is high, because the noise value], but its technology is not yet the second method-lowering the wind-lower acceptance. In other words, is it an obvious way? The value of the noise generated by the reduction of the fan arm sound is fixed. Therefore, if = fan is' its fan, it controls the speed of the fan: :: number: other, = the method of moving speed can only be tested by trial and error (Try and er: Lou Guangyin 'Ya Er has a clear rotation speed of the square fan until the noise Γ) Fang slowly adjusts the wind speed a 4 s, the value of which is acceptable for the text. This is because of the mode 1 of its proper speed, which requires a lot of manpower-a very important issue to reduce the fan speed to reduce Yuyin 'is [the purpose and summary of the invention] The t'I of the sound value is provided to solve the above problems A fan speed control noise breaks the ground, using a set temperature control pattern to make the fan speed clear and produce two pairs of fan-produced noise and its corresponding central processor. Also make predictions to get the cooling effect of the fan and the noise value.

200407506 V. Description of the invention (3) ___ The optimized design 'reduced the trial and error method, in order to obtain its proper speed, it takes two to go (try and error). A lot of manpower and time. The following steps: First, the method of obtaining a fan module ^ noise suppression Y sound value method, including at least the temperature and the operation parameter value of the fan module 'next' to obtain the correspondence between the value of an operation parameter of an object component group and the noise value , And the corresponding relationship between the temperature of the fan module object component and the fan module; then, draw the operation parameter value and noise value of this module =: parameter value relationship diagram, and then set a temperature control graphic, ,: 'A piece of temperature and operation of the fan module moxibustion = ^ make this temperature control graph on the object element shape and the temperature and wind of the above-mentioned object components have no relationship; read the intersection of the temperature control graph, & the intersection point is It is a fan model ^ The relationship between the operating parameter values is based on the temperature and wind of the target component: ^. Figure, find the relationship between the value of the operating parameter corresponding to this operating point and the relationship between the numerical value and the noise value, and find 夂;: / value 丨 Finally, obtain the allowable noise value range, and the value corresponds to the ° dead sound method. The noise value of the fan speed control is made in order to further the purpose and structure of the present invention, and the detailed description and functions of the present invention are provided in detail. [Detailed description of the embodiments] + π The fan disclosed in accordance with the present invention Speed control 啐 sound 方 t square, ^ speed, to predict the fan's speed; = = γ,-the temperature of the pirate 'to get the heat dissipation effect and noise value of the fan: the most 11 page 6 200407506

V. Description of the invention (4) Optimized design, this method reduces the large amount of manpower and time previously spent trying and err0r to obtain its proper speed. For the flowchart of this method, read and refer to "Figures 1A and 1B":

First, as shown in "Figure 1A", obtain a fan module (step 10). This fan module can be a fan in a personal computer or a notebook computer.

Next, obtain the corresponding relationship between the temperature of the target component and the operating parameter value of the fan module, and the corresponding relationship between the operating parameter value and the noise value of one of the fan modules (step 20). Since the most important heat dissipation component in the computer is the center Processor, so here take the central processing unit as an example for explanation; and the above operation ^ parameter value is the speed of the fan. Correspondence between the temperature of the CPU in operation and the speed of the fan is obtained through experiments; and the corresponding relationship between the noise value and the speed of the fan under different fan speeds is captured. 'Ran% makes this object component' degree and the operation parameters of the fan module are only diagrams, and the relationship between the operation parameter value and the noise value of the fan module (step 30), the temperature of the CPU and The relationship between the speed of the fan is drawn as a graph, as shown in "Appendix i"; the corresponding relationship between the noise value and the speed of the fan at the same speed is drawn as the second figure, as shown in "Appendix 2". The relationship between clothes and temperature is obtained from the next step (step 4).

As shown in "Figure 4", it is determined by the following factors: (1) Wind & Figure / such as "Minimum operating temperature of the fan (3) The operating range of the fan is set to a low turning speed. According to the designer's consideration ... Fan And the minimum speed of the fan and the minimum operating temperature and the sound temperature of 200407506. 5. The maximum speed of the invention (5) determines the upper limit point B of its operating range; and the operating range C of the fan refers to the operating range. Between the lower limit point A and the upper limit point B, the fan range C that can be covered by the fan operation; in this embodiment, the relationship between the temperature and the rotation speed of the central processing unit is used as the source of the temperature control graphic to simplify the description. . Then, the temperature control graphic of the margin control is on the numerical relationship diagram between the temperature of the target component and the operation of the fan module (Xi Za 50). This step is to draw the temperature control graphic not included in "Annex 3" on the "Accessory" For the relationship between the CPU temperature and fan speed of 1 ", please refer to" Appendix 4 ". Next, please refer to the “1 β diagram” to read the intersection of the temperature control graph, the temperature of the target component, and the operation module value of the fan module. This intersection is the operation point of the fan module (step 6). ), Read the intersection point D of the temperature control graph, the relationship between the temperature of the CPU and the fan speed, and this intersection point D is the operating point of the fan. & After that, according to the temperature of the target component and the operating parameter value of the fan module, obtain the operating parameter value corresponding to this operating point (step 70), according to two! ίίΐϋ The relationship between the temperature and the fan speed, find out this operating point; Figure = fan speed value. According to the relationship between the operating parameter value and the noise value, the noise value corresponding to the operating parameter value (step 80) is obtained, and the corresponding relationship between the fan speed value and the fan speed value is obtained from the map of the wind speed, the temperature and the speed value ^ sound

Around. Finally:; =;:? Find, determine-(allowable noise value range /, said target range satisfies the allowable noise value range (I

Fan: Noise value range (step 90), according to the customer ’s 200407506 V. Invention Description (6) Private 1 0 0), the fan speed value range will be compared, if the values are parallel; ^ two-day value and Within the allowable noise range, this fan; i:; :::::; Xu == a range of engineering steps; if the noise level is private, you can go back to get the temperature control graphics (steps)巳 If it exceeds the allowable range, then shape and repeat (step '(0 to (step i, second step, obtain a new temperature control chart tolerable noise value range), until the noise value range meets the acquisition Ξ: temperature drop ： 本 ： The lower limit point A in the control / graphics should be the corresponding fan speed and noise value, and the number of points D and the noise generated by the fan and the d :: value from 32 to the new # are clearly estimated. And predict the temperature change of the heat radiation effect of the wind genius 1 [Achieved effect] The optimal design of the wood value. Set well; the method of making the noise value is to use-: produce cymbals and the corresponding ;: ί:;: = 化;: r The optimized design of the previous thermal effect and ° sound value, reducing the speed to来 t family: ί ί 'I only said the 本 version, which is the preferred embodiment of it, and the scope of the implementation of 2 dollars per day made by Mi Wai; that is, all equal changes and modifications made according to the patent application for this invention are What is covered by the patent scope of the present invention: 200407506

200407506

The diagram briefly explains step 8 0 step 9 0 step 1 0 0 According to the relationship between the operation parameter value and the noise value, ABCD obtains the noise value corresponding to the operation parameter value and obtains the allowable noise value range. Confirm that the noise value meets the allowable Noise value range lower limit point upper limit effect range intersection

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Claims (1)

200407506 VI. Application for patent scope 1. A method for controlling the noise value by the fan speed, the method includes the following steps: (a) obtaining a fan module; (b) obtaining the temperature of an object component and one of the fan modules operation Correspondence between parameter values, and the corresponding relationship between the operating parameter value and the noise value of the fan module; (c) drawing a relationship diagram between the temperature of the target component and the operating parameter value of the fan module, and the fan module The relationship between the operating parameter value and the noise value; (d) obtaining a temperature control graphic; C e) drawing the temperature control graphic on the relationship between the temperature of the object component and the operating parameter value of the fan module (F) read an intersection of the temperature control graph, the temperature of the target element and the operating parameter value of the fan module, and the intersection is an operating point of the fan module; (g) according to the Relation diagram of the temperature of the target component and the operating parameter value of the fan module to obtain a value of the operating parameter corresponding to the operating point; (h) According to the relationship diagram of the operating parameter value and the noise value, obtain the The value corresponds to the noise value; (i) obtaining an allowable noise value range; and (j) confirming that the noise value meets the allowable noise value range. 2. The method for controlling the noise value of the fan speed according to item 1 of the scope of patent application, wherein the operating parameter is the speed of the fan. 200407506 6. Scope of Patent Application 3. The method for controlling the noise value of fan speed as described in item 1 of the scope of patent application, where the target component is a central processing unit. 4. The method for controlling the noise value of the fan speed according to item 1 of the scope of patent application, wherein the temperature control pattern is determined by the minimum speed, the minimum operating temperature, the operating range and the maximum speed of the fan. 5. The method for controlling the noise value of the fan speed as described in item 1 of the scope of the patent application, wherein the step of confirming that the noise value satisfies the allowable noise value range, and if the result is no, perform (d) ~ (j ) Until the noise value satisfies the allowable noise value range. Page 13