TWI892129B - Fan vibration abnormal sound detection apparatus - Google Patents
Fan vibration abnormal sound detection apparatusInfo
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Abstract
Description
本發明係有關於一種檢測裝置，特別是一種風扇震動異音檢測裝置。The present invention relates to a detection device, in particular to a fan vibration and noise detection device.
震動感測器，例如加速計或壓電式感測器，通常被使用以檢測風扇裝置的異常震動。加速計接觸風扇裝置以與風扇裝置一起震動以測得震動加速度，而壓電式感測器則藉由接觸風扇裝置的探頭的震動機構轉換風扇裝置的震動成為電壓信號以得到風扇裝置的震動量。上述之加速計以及壓電式感測器又被稱為接觸式感測器。Vibration sensors, such as accelerometers or piezoelectric sensors, are commonly used to detect abnormal vibrations in fan units. Accelerometers vibrate with the fan unit, measuring acceleration. Piezoelectric sensors, on the other hand, use a vibrating mechanism in their probes to convert the vibrations into a voltage signal, thereby measuring the vibration magnitude. These accelerometers and piezoelectric sensors are collectively referred to as contact sensors.
在風扇裝置較重且震動較大的狀況下，例如檢測大型風扇的震動，由於感測器的重量以及探頭的阻尼效應都可以忽略，因此使用上述接觸式感測器檢測風扇裝置的震動尚不至於產生過大的誤差。然而，在風扇裝置較輕且震動較小的狀況下，例如檢測小型風扇的震動，由於感測器的重量以及探頭的阻尼效應，因此使用上述接觸式感測器檢測風扇裝置的震動則會產生過大的誤差，將造成檢測結果失真或是不具備參考性，而風扇裝置的震動通常亦伴隨著異音的產生。In the case of a heavy fan unit with significant vibration, such as when detecting the vibration of a large fan, the weight of the sensor and the damping effect of the probe are negligible, so using the above-mentioned contact sensor to detect the vibration of the fan unit will not produce significant errors. However, in the case of a light fan unit with less vibration, such as when detecting the vibration of a small fan, the weight of the sensor and the damping effect of the probe will cause significant errors when using the above-mentioned contact sensor to detect the vibration of the fan unit, resulting in distorted or unreliable detection results. Fan vibration is also usually accompanied by the generation of abnormal noise.
為解決上述問題，本發明之目的在於提供一種風扇震動異音檢測裝置。To solve the above problems, the present invention aims to provide a fan vibration and noise detection device.
為達成本發明之上述目的，本發明之風扇震動異音檢測裝置係應用於一風扇裝置，該風扇震動異音檢測裝置包含：一雷射位移感測電路；及一微處理器，該微處理器係電性連接至該雷射位移感測電路，其中，該雷射位移感測電路被配置為感測該風扇裝置的一震動以產生一風扇震動信號並傳送該風扇震動信號至該微處理器；該微處理器被配置為比較該風扇震動信號的一震動值及一震動閾值以判定該風扇裝置是否具有一異常震動或一異音。To achieve the above-mentioned objectives of the present invention, the fan vibration and abnormal sound detection device of the present invention is applied to a fan device, and the fan vibration and abnormal sound detection device includes: a laser displacement sensing circuit; and a microprocessor, which is electrically connected to the laser displacement sensing circuit, wherein the laser displacement sensing circuit is configured to sense a vibration of the fan device to generate a fan vibration signal and transmit the fan vibration signal to the microprocessor; the microprocessor is configured to compare a vibration value of the fan vibration signal with a vibration threshold to determine whether the fan device has an abnormal vibration or an abnormal sound.
本發明之功效在於準確地檢測風扇裝置的異常震動或異音。The purpose of the present invention is to accurately detect abnormal vibration or noise of a fan device.
為了能更進一步瞭解本發明為達成預定目的所採取之技術、手段及功效，請參閱以下有關本發明之詳細說明與附圖，相信本發明之目的、特徵與特點，當可由此得到深入且具體之瞭解，然而所附圖式僅提供參考與說明用，並非用來對本發明加以限制者。To further understand the techniques, means, and effects employed by the present invention to achieve its intended purpose, please refer to the following detailed description and accompanying drawings of the present invention. It is believed that this will provide a deeper and more detailed understanding of the purposes, features, and characteristics of the present invention. However, the accompanying drawings are provided for reference and illustration purposes only and are not intended to limit the present invention.
在本揭露當中，提供了許多特定的細節，以提供對本發明之具體實施例之徹底瞭解；然而，本領域技術人員應當知曉，在沒有一個或更多個該些特定的細節的情況下，依然能實踐本發明；在其他情況下，則未顯示或描述眾所周知的細節以避免模糊了本發明之主要技術特徵。茲有關本發明之技術內容及詳細說明，配合圖式說明如下：In this disclosure, many specific details are provided to provide a thorough understanding of specific embodiments of the present invention. However, those skilled in the art should understand that the present invention can still be practiced without one or more of these specific details. In other cases, well-known details are not shown or described to avoid obscuring the main technical features of the present invention. The technical content and detailed description of the present invention are illustrated as follows with accompanying drawings:
請參考圖1，其係為本發明之風扇震動異音檢測裝置10之第一具體實施例之方塊圖。該風扇震動異音檢測裝置10係應用於一風扇裝置20，該風扇震動異音檢測裝置10包含一雷射位移感測電路102及一微處理器104，該微處理器104係電性連接至該雷射位移感測電路102。Please refer to Figure 1, which is a block diagram of a first embodiment of a fan vibration and noise detection device 10 of the present invention. The fan vibration and noise detection device 10 is applied to a fan device 20 and includes a laser displacement sensing circuit 102 and a microprocessor 104. The microprocessor 104 is electrically connected to the laser displacement sensing circuit 102.
該雷射位移感測電路102感測該風扇裝置20的一震動（亦可稱為振動、移動或位移）以產生一風扇震動信號106並傳送該風扇震動信號106至該微處理器104；接著，該微處理器104比較該風扇震動信號106的一震動值及一震動閾值以判定該風扇裝置20是否具有一異常震動或一異音。The laser displacement sensing circuit 102 senses a vibration (also referred to as oscillation, movement, or displacement) of the fan device 20 to generate a fan vibration signal 106 and transmits the fan vibration signal 106 to the microprocessor 104. The microprocessor 104 then compares a vibration value of the fan vibration signal 106 with a vibration threshold to determine whether the fan device 20 has an abnormal vibration or an abnormal sound.
該雷射位移感測電路102可包含一雷射器（未示於圖1）與一光電敏感元件（未示於圖1）以利用例如雷射三角法感測該風扇裝置20的例如風扇外框的該震動以產生該風扇震動信號106。該雷射位移感測電路102的原理為：雷射的速度為光速，因此在短距離的發射與接收的時間差可視為零；利用雷射發射與接收的時間差以及位移量可以取得該風扇裝置20的例如風扇外框的位移、速度（包含平均速度與瞬時速度）以及加速度（包含平均加速度與瞬時加速度）；經由以上的位移、速度以及加速度的資料，搭配該風扇裝置20的重量，則可以計算出該風扇裝置20的震動加速度值及震動量。The laser displacement sensing circuit 102 may include a laser (not shown in FIG. 1 ) and a photosensitive element (not shown in FIG. 1 ) to sense the vibration of the fan device 20, such as the fan frame, using, for example, laser triangulation to generate the fan vibration signal 106 . The principle of the laser displacement sensing circuit 102 is as follows: the speed of laser light is equal to the speed of light, so the time difference between transmission and reception is considered zero over short distances. The time difference between laser transmission and reception and the displacement can be used to determine the displacement, velocity (including average and instantaneous velocity), and acceleration (including average and instantaneous acceleration) of the fan device 20, such as the fan frame. Using these displacement, velocity, and acceleration data, combined with the weight of the fan device 20, the vibration acceleration value and vibration amount of the fan device 20 can be calculated.
使用者可依據設計或需求而設定該震動閾值。如果該風扇震動信號106的該震動值大於該震動閾值，則該微處理器104被配置為判定該風扇裝置20具有該異常震動或該異音；如果該風扇震動信號106的該震動值小於等於該震動閾值，則該微處理器104被配置為判定該風扇裝置20不具有該異常震動或該異音。可以由該震動值判定是否具有該異音的原因是該風扇裝置20的震動通常伴隨著異音的產生，亦即該風扇裝置20的異音主要是由震動所引起的；該風扇裝置20的震動越大則異音越大，該風扇裝置20的震動越小則異音越小。The user can set the vibration threshold according to design or needs. If the vibration value of the fan vibration signal 106 is greater than the vibration threshold, the microprocessor 104 is configured to determine that the fan device 20 has the abnormal vibration or the abnormal sound. If the vibration value of the fan vibration signal 106 is less than or equal to the vibration threshold, the microprocessor 104 is configured to determine that the fan device 20 does not have the abnormal vibration or the abnormal sound. The reason why the vibration value can be used to determine whether the fan device 20 has the abnormal sound is that the vibration of the fan device 20 is usually accompanied by the generation of abnormal sound, that is, the abnormal sound of the fan device 20 is mainly caused by vibration; the greater the vibration of the fan device 20, the louder the abnormal sound, and the smaller the vibration of the fan device 20, the smaller the abnormal sound.
該震動值係為一震動加速度值，而該震動閾值係為一震動加速度閾值，然而本發明不予限定；這是因為對位移進行微分即可得到速度，而對速度進行微分即可得到加速度，因此該震動值亦可為震動位移值或震動速度值，而該震動閾值則可為震動位移閾值或震動速度閾值。The vibration value is a vibration acceleration value, and the vibration threshold is a vibration acceleration threshold, but the present invention is not limited thereto; this is because the velocity can be obtained by differentiating the displacement, and the acceleration can be obtained by differentiating the velocity. Therefore, the vibration value can also be a vibration displacement value or a vibration velocity value, and the vibration threshold can be a vibration displacement threshold or a vibration velocity threshold.
在本發明之一種實施方式但不限制本發明，該雷射位移感測電路102包含複數之雷射位移感測器（未示於圖1）以感測該風扇裝置20的複數方向之複數之該震動以產生複數之該風扇震動信號106並傳送該些風扇震動信號106至該微處理器104；接著，該微處理器104比較該些風扇震動信號106的複數之該震動值及複數之該震動閾值以判定該風扇裝置20是否具有該異常震動或該異音，容後詳述於圖2的第二具體實施例當中。In one embodiment of the present invention, but not limiting thereof, the laser displacement sensing circuit 102 includes a plurality of laser displacement sensors (not shown in FIG. 1 ) to sense the plurality of vibrations in a plurality of directions of the fan device 20 to generate a plurality of fan vibration signals 106 and transmit these fan vibration signals 106 to the microprocessor 104. The microprocessor 104 then compares the plurality of vibration values of the fan vibration signals 106 with a plurality of vibration thresholds to determine whether the fan device 20 has the abnormal vibration or the abnormal sound, as described in detail in the second specific embodiment of FIG. 2 .
請參考圖2，其係為本發明之風扇震動異音檢測裝置10之第二具體實施例之方塊圖；圖2所示之元件與圖1所示之元件相同者，為簡潔因素，故於此不再重複其敘述；並請參考圖3，其係為本發明之檢測一X軸方向震動值之示意圖；並請同時參考圖4，其係為本發明之檢測一Y軸方向震動值之示意圖。該些震動值包含該X軸方向震動值及該Y軸方向震動值，而該些震動閾值則包含一X軸方向震動閾值及一Y軸方向震動閾值。Please refer to Figure 2, which is a block diagram of a second specific embodiment of the fan vibration and noise detection device 10 of the present invention. The components shown in Figure 2 are identical to those shown in Figure 1; for the sake of simplicity, their description will not be repeated here. Please also refer to Figure 3, which is a schematic diagram of the present invention detecting an X-axis vibration value; and please also refer to Figure 4, which is a schematic diagram of the present invention detecting a Y-axis vibration value. The vibration values include the X-axis vibration value and the Y-axis vibration value, and the vibration thresholds include an X-axis vibration threshold and a Y-axis vibration threshold.
首先，本發明依序地驅動複數之該風扇裝置20並以人工方式一一判定並分類該些風扇裝置20為具有體感異常震動或不具有體感異常震動（亦即，具有體感正常震動），並且分別記錄對應產生的該（些）X軸方向震動值及該（些）Y軸方向震動值；接著，該微處理器104基於具有體感異常震動的該（些）風扇裝置20所對應產生的該（些）X軸方向震動值設定該X軸方向震動閾值（例如以該（些）X軸方向震動值當中的最小值設定為該X軸方向震動閾值），並且基於具有體感異常震動的該（些）風扇裝置20所對應產生的該（些）Y軸方向震動值設定該Y軸方向震動閾值（例如以該（些）Y軸方向震動值當中的最小值設定為該Y軸方向震動閾值）。最後，在得到該X軸方向震動閾值及該Y軸方向震動閾值之後，後續如果感測該風扇裝置20（例如新的該風扇裝置20）所得的該X軸方向震動值大於該X軸方向震動閾值，或者如果感測該風扇裝置20所得的該Y軸方向震動值大於該Y軸方向震動閾值，則該微處理器104判定該風扇裝置20具有該異常震動。First, the present invention sequentially drives a plurality of fan devices 20 and manually determines and classifies each of the fan devices 20 as having abnormal vibration or not having normal vibration (i.e., having normal vibration), and records the corresponding X-axis vibration value and the Y-axis vibration value. Then, the microprocessor 104 determines the corresponding fan device 20 having abnormal vibration. The X-axis vibration threshold is set based on the generated X-axis vibration value(s) (for example, the minimum value among the X-axis vibration value(s) is set as the X-axis vibration threshold), and the Y-axis vibration threshold is set based on the Y-axis vibration value(s) corresponding to the fan device(s) 20 having the physically felt abnormal vibration (for example, the minimum value among the Y-axis vibration value(s) is set as the Y-axis vibration threshold). Finally, after obtaining the X-axis vibration threshold and the Y-axis vibration threshold, if the X-axis vibration value obtained by sensing the fan device 20 (e.g., a new fan device 20) is greater than the X-axis vibration threshold, or if the Y-axis vibration value obtained by sensing the fan device 20 is greater than the Y-axis vibration threshold, the microprocessor 104 determines that the fan device 20 has abnormal vibration.
類似上述內容，該微處理器104基於具有體感正常震動的該（些）風扇裝置20所對應產生的該（些）X軸方向震動值設定該X軸方向震動閾值（例如以該（些）X軸方向震動值當中的最大值設定為該X軸方向震動閾值），並且基於具有體感正常震動的該（些）風扇裝置20所對應產生的該（些）Y軸方向震動值設定該Y軸方向震動閾值（例如以該（些）Y軸方向震動值當中的最大值設定為該Y軸方向震動閾值）。最後，在得到該X軸方向震動閾值及該Y軸方向震動閾值之後，後續如果感測該風扇裝置20（例如新的該風扇裝置20）所得的該X軸方向震動值小於等於該X軸方向震動閾值，而且如果感測該風扇裝置20所得的該Y軸方向震動值小於等於該Y軸方向震動閾值，則該微處理器104判定該風扇裝置20不具有該異常震動。Similar to the above, the microprocessor 104 sets the X-axis vibration threshold based on the X-axis vibration values corresponding to the fan device(s) 20 with normal physical vibration (for example, the maximum value among the X-axis vibration values is set as the X-axis vibration threshold), and sets the Y-axis vibration threshold based on the Y-axis vibration values corresponding to the fan device(s) 20 with normal physical vibration (for example, the maximum value among the Y-axis vibration values is set as the Y-axis vibration threshold). Finally, after obtaining the X-axis vibration threshold and the Y-axis vibration threshold, if the X-axis vibration value obtained by sensing the fan device 20 (e.g., a new fan device 20) is less than or equal to the X-axis vibration threshold, and if the Y-axis vibration value obtained by sensing the fan device 20 is less than or equal to the Y-axis vibration threshold, the microprocessor 104 determines that the fan device 20 does not have the abnormal vibration.
類似上述內容，首先本發明依序地驅動該些風扇裝置20並以人工方式一一判定並分類該些風扇裝置20為具有體感異音或不具有體感異音（亦即，具有體感正常聲音），並且分別記錄對應產生的該（些）X軸方向震動值及該（些）Y軸方向震動值；接著，該微處理器104基於具有體感異音的該（些）風扇裝置20所對應產生的該（些）X軸方向震動值設定該X軸方向震動閾值（例如以該（些）X軸方向震動值當中的最小值設定為該X軸方向震動閾值），並且基於具有體感異音的該（些）風扇裝置20所對應產生的該（些）Y軸方向震動值設定該Y軸方向震動閾值（例如以該（些）Y軸方向震動值當中的最小值設定為該Y軸方向震動閾值）。最後，在得到該X軸方向震動閾值及該Y軸方向震動閾值之後，後續如果感測該風扇裝置20（例如新的該風扇裝置20）所得的該X軸方向震動值大於該X軸方向震動閾值，或者如果感測該風扇裝置20所得的該Y軸方向震動值大於該Y軸方向震動閾值，則該微處理器104判定該風扇裝置20具有該異音。Similar to the above, the present invention first sequentially drives the fan devices 20 and manually determines and classifies the fan devices 20 as having a somatosensory abnormal sound or not having a somatosensory abnormal sound (i.e., having a somatosensory normal sound), and respectively records the corresponding X-axis direction vibration value and the Y-axis direction vibration value; then, the microprocessor 104 calculates the corresponding fan device 20 based on the fan device 20 having the somatosensory abnormal sound. The X-axis vibration threshold is set based on the generated X-axis vibration value(s) (for example, the minimum value among the X-axis vibration value(s) is set as the X-axis vibration threshold), and the Y-axis vibration threshold is set based on the Y-axis vibration value(s) corresponding to the fan device(s) 20 having the somatosensory noise (for example, the minimum value among the Y-axis vibration value(s) is set as the Y-axis vibration threshold). Finally, after obtaining the X-axis vibration threshold and the Y-axis vibration threshold, if the X-axis vibration value obtained by sensing the fan device 20 (e.g., a new fan device 20) is greater than the X-axis vibration threshold, or if the Y-axis vibration value obtained by sensing the fan device 20 is greater than the Y-axis vibration threshold, the microprocessor 104 determines that the fan device 20 has the abnormal sound.
類似上述內容，該微處理器104基於具有體感正常聲音的該（些）風扇裝置20所對應產生的該（些）X軸方向震動值設定該X軸方向震動閾值（例如以該（些）X軸方向震動值當中的最大值設定為該X軸方向震動閾值），並且基於具有體感正常聲音的該（些）風扇裝置20所對應產生的該（些）Y軸方向震動值設定該Y軸方向震動閾值（例如以該（些）Y軸方向震動值當中的最大值設定為該Y軸方向震動閾值）。最後，在得到該X軸方向震動閾值及該Y軸方向震動閾值之後，後續如果感測該風扇裝置20（例如新的該風扇裝置20）所得的該X軸方向震動值小於等於該X軸方向震動閾值，而且如果感測該風扇裝置20所得的該Y軸方向震動值小於等於該Y軸方向震動閾值，則該微處理器104判定該風扇裝置20不具有該異音。Similar to the above, the microprocessor 104 sets the X-axis vibration threshold based on the X-axis vibration values corresponding to the fan device(s) 20 with normal body-perceived sound (for example, the maximum value among the X-axis vibration values is set as the X-axis vibration threshold), and sets the Y-axis vibration threshold based on the Y-axis vibration values corresponding to the fan device(s) 20 with normal body-perceived sound (for example, the maximum value among the Y-axis vibration values is set as the Y-axis vibration threshold). Finally, after obtaining the X-axis vibration threshold and the Y-axis vibration threshold, if the X-axis vibration value obtained by sensing the fan device 20 (e.g., a new fan device 20) is less than or equal to the X-axis vibration threshold, and if the Y-axis vibration value obtained by sensing the fan device 20 is less than or equal to the Y-axis vibration threshold, the microprocessor 104 determines that the fan device 20 does not have the abnormal sound.
請參考圖5，其係為本發明之震動加速度與頻率之一實施例分布圖；圖5僅為示意圖，其並未按照比例繪出。本發明藉由如前所述之該雷射位移感測電路102以高頻率（例如200KHz）的取樣方式將低於此高頻率的所有被檢測的該些風扇裝置20的震動加速度全部檢測出來，再將所有的震動加速度的資料依據不同的頻率範圍整理成如圖5所示，可以分別對這些資料進行長時間收集與比對。Please refer to Figure 5, which shows a distribution diagram of vibration acceleration and frequency according to one embodiment of the present invention. Figure 5 is a schematic diagram only and is not drawn to scale. The present invention utilizes the aforementioned laser displacement sensing circuit 102 to sample at a high frequency (e.g., 200 kHz) to detect all vibration accelerations of the fan devices 20 below this high frequency. All vibration acceleration data is then organized according to different frequency ranges, as shown in Figure 5. This data can be collected and compared over a long period of time.
風扇異音的起源是風扇震動，而人類的手所感受到的震動與人類的耳膜所感受到的震動差異在於人類的手所感受到的震動屬於震動的強度（稱為震幅），而人類的耳膜所感受到的震動則屬於震動的頻率。本發明可經由長時間收集對比樣品與震動頻率的關係，可以得到歸納出好的風扇（亦即，沒有震動與異音）與不好的風扇（亦即，有震動與異音）的分布情況；藉由這些資料的分布，本發明可以進行大數據分析，並且據此建立震動與異音的資料模型，以作為後續不斷修正與判定的標準。Fan noise originates from vibration. The difference between the vibration felt by the human hand and the vibration felt by the eardrum lies in the vibration intensity (called amplitude) of the vibration felt by the hand, while the vibration felt by the eardrum is the vibration frequency. By collecting and comparing the relationship between samples and vibration frequency over a long period of time, the present invention can deduce the distribution of good fans (i.e., no vibration and noise) and bad fans (i.e., vibration and noise). This data distribution allows for big data analysis and the establishment of a vibration and noise data model, which serves as a standard for subsequent continuous correction and judgment.
再者，請復參考圖2、圖3及圖4，該雷射位移感測電路102包含一X軸方向雷射位移感測器1022及一Y軸方向雷射位移感測器1024，該X軸方向雷射位移感測器1022及該Y軸方向雷射位移感測器1024係電性連接至該微處理器104，該X軸方向雷射位移感測器1022被配置為感測該風扇裝置20的一X軸方向之該震動以得到該X軸方向震動值，而該Y軸方向雷射位移感測器1024被配置為感測該風扇裝置20的一Y軸方向之該震動以得到該Y軸方向震動值。Furthermore, referring again to Figures 2, 3, and 4, the laser displacement sensing circuit 102 includes an X-axis laser displacement sensor 1022 and a Y-axis laser displacement sensor 1024. The X-axis laser displacement sensor 1022 and the Y-axis laser displacement sensor 1024 are electrically connected to the microprocessor 104. The X-axis laser displacement sensor 1022 is configured to sense the vibration of the fan device 20 in an X-axis direction to obtain the X-axis vibration value, while the Y-axis laser displacement sensor 1024 is configured to sense the vibration of the fan device 20 in a Y-axis direction to obtain the Y-axis vibration value.
再者，該雷射位移感測電路102更包含電性連接至該微處理器104的一Z軸方向雷射位移感測器（未示於該些圖式），該Z軸方向雷射位移感測器被配置為感測該風扇裝置20的一Z軸方向之該震動以得到一Z軸方向震動值，而其內容與應用類似於上述關於X軸及Y軸的內容與應用，故於此不再贅述。Furthermore, the laser displacement sensing circuit 102 further includes a Z-axis laser displacement sensor (not shown in these figures) electrically connected to the microprocessor 104. The Z-axis laser displacement sensor is configured to sense the vibration of the fan device 20 in a Z-axis direction to obtain a Z-axis vibration value. Its content and application are similar to the content and application of the above-mentioned X-axis and Y-axis, so it will not be repeated here.
再者，當該微處理器104判定該風扇裝置20具有該異常震動或該異音時，該微處理器104可驅動一警示單元（例如顯示器、發光二極體或蜂鳴器，未示於該些圖式）以提示該異常震動或該異音的存在。Furthermore, when the microprocessor 104 determines that the fan device 20 has the abnormal vibration or the abnormal sound, the microprocessor 104 can drive an alarm unit (such as a display, a light-emitting diode or a buzzer, not shown in these figures) to prompt the existence of the abnormal vibration or the abnormal sound.
本發明之功效在於準確地檢測該風扇裝置20的異常震動或異音。本發明亦可稱為一種非接觸式風扇旋轉異音與震動的檢測方法，係藉由多個雷射位移感測器檢查運轉中的風扇的各相位的微量位移，收集微量位移與實際風扇的異音與震動一一對應，經由大數據分析實際異音與震動與位移之間的關係，設定合格品的位移區間作為檢測的標準，並對風扇的運轉狀態進行測試以判定異音與震動是否符合要求。The present invention accurately detects abnormal vibration or noise from the fan unit 20. This method, also known as a non-contact fan rotation noise and vibration detection method, utilizes multiple laser displacement sensors to detect minute displacements at each phase of the rotating fan. These micro-displacements are then collected and mapped to actual fan noise and vibration. Through big data analysis, the relationship between actual noise, vibration, and displacement is analyzed, and a displacement range for qualified products is established as a detection standard. The fan's operating status is then tested to determine whether the noise and vibration meet the required standards.
然以上所述者，僅為本發明之實施例，當不能限定本發明實施之範圍，即凡依本發明請求項所作之均等變化與修飾等，皆應仍屬本發明之專利涵蓋範圍意圖保護之範疇。本發明還可有其它多種實施例，在不背離本發明精神及其實質的情況下，熟悉本領域的技術人員當可根據本發明作出各種相應的改變和變形，但這些相應的改變和變形都應屬於本發明所附的請求項的保護範圍。綜上所述，本發明之構造未曾見於同類產品及公開使用，具有產業利用性、新穎性與進步性。However, the above descriptions are merely examples of embodiments of the present invention and do not limit the scope of its implementation. All equivalent variations and modifications based on the claims of the present invention are intended to be protected by the patent. The present invention is also susceptible to numerous other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art are able to make various corresponding changes and modifications based on the present invention. These corresponding changes and modifications are intended to be protected by the claims appended hereto. In summary, the structure of the present invention is unprecedented in similar products and public use, and possesses industrial applicability, novelty, and advancements.
10:風扇震動異音檢測裝置 20:風扇裝置 102:雷射位移感測電路 104:微處理器 106:風扇震動信號 1022:X軸方向雷射位移感測器 1024:Y軸方向雷射位移感測器 10: Fan vibration and noise detection device 20: Fan unit 102: Laser displacement sensing circuit 104: Microprocessor 106: Fan vibration signal 1022: X-axis laser displacement sensor 1024: Y-axis laser displacement sensor
圖1為本發明之風扇震動異音檢測裝置之第一具體實施例之方塊圖。FIG1 is a block diagram of a first embodiment of the fan vibration and noise detection device of the present invention.
圖2為本發明之風扇震動異音檢測裝置之第二具體實施例之方塊圖。FIG2 is a block diagram of a second embodiment of the fan vibration and noise detection device of the present invention.
圖3為本發明之檢測X軸方向震動值之示意圖。FIG3 is a schematic diagram of detecting X-axis vibration value according to the present invention.
圖4為本發明之檢測Y軸方向震動值之示意圖。FIG4 is a schematic diagram of detecting vibration values in the Y-axis direction according to the present invention.
圖5為本發明之震動加速度與頻率之一實施例分布圖。FIG5 is a distribution diagram of vibration acceleration and frequency according to an embodiment of the present invention.
10:風扇震動異音檢測裝置 10: Fan vibration and noise detection device
20:風扇裝置 20: Fan device
102:雷射位移感測電路 102: Laser displacement sensing circuit
104:微處理器 104: Microprocessor
106:風扇震動信號 106: Fan vibration signal
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TW215948B (en) * | 1992-04-10 | 1993-11-11 | Dana A Waiker | |
| TW201329677A (en) * | 2011-09-23 | 2013-07-16 | Apple Inc | Circumventing frequency excitations in a computer system |
| US20190390682A1 (en) * | 2016-04-27 | 2019-12-26 | Kao Corporation | Fan |
| US11372395B2 (en) * | 2016-05-09 | 2022-06-28 | Strong Force Iot Portfolio 2016, Llc | Methods and systems for detection in an industrial Internet of Things data collection environment with expert systems diagnostics for vibrating components |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW215948B (en) * | 1992-04-10 | 1993-11-11 | Dana A Waiker | |
| TW201329677A (en) * | 2011-09-23 | 2013-07-16 | Apple Inc | Circumventing frequency excitations in a computer system |
| US20190390682A1 (en) * | 2016-04-27 | 2019-12-26 | Kao Corporation | Fan |
| US11372395B2 (en) * | 2016-05-09 | 2022-06-28 | Strong Force Iot Portfolio 2016, Llc | Methods and systems for detection in an industrial Internet of Things data collection environment with expert systems diagnostics for vibrating components |
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