1297779 九、發明說明： - 【發明所屬之技術領域】 本發明係有關電源轉換器inverter之測試設備，特別是 有關可降低負載效應之驅動模組測試設備，所述之驅動模組 係用於驅動冷陰極燈管CCFL。 【先前技術】 ' 目前，平面顯示器正逐漸取代映像管顯示器，在未來將 成爲市場主流。平面顯示器依發光源可分爲非自發光型，例 ^ 如一般的液晶顯不器L C D，及自發光型，例如有機電激發光 顯示器OLED及電漿電視PDP等等。其中，非自發光型的平 面顯示器大多使用冷陰極燈管來作爲光源，尤其是在大尺寸 液晶顯示器。因液晶顯示器的尺寸、規格多樣性發展，冷陰 極燈管的設置型式亦隨之多樣化，例如燈管的數量、長度及 功率等等。當然，用來驅動冷陰極燈管的電源轉換器亦須配 — 合燈管的多樣化設置，而作成各種不同型式。另一方面，電 源轉換器所具備的功能也日趨多樣。因此，存在著針對各種 • 不同型式之驅動模組提供一種擴充性佳、準確性高具多種測 試功能之測試設備之需求。 以往在測試驅動模組上之單一電源轉換器時，多使用個 別的電流測試儀器及電壓測試儀器分別對每一個電源轉換 器進行量測，這使得測試所需耗費的時間隨著電源轉換器之 數量增加而拖長。這意味著將耗費更多的品管時間。此外， 例如電壓及電流係分開測試的，而非在同一狀態下所測得。 在測試條件不一的情況下，往往不能正確地反映出電源轉換 1297779 器真實特性。 一種可測試適用於單燈管至多燈管之電壓變頻器之測 試裝置被提出來，如本國申請第92 1 3 723 4發明專利案「電 壓變頻器之測試裝置」，其主要利用負載模組來模擬單燈管 至多燈管的負載環境，利用偵測模組與負載模組相接，來偵 測電壓變頻器的電壓、電流及頻率等。另外，上述前案揭示 一種針對由電壓變頻器所引發的電磁干擾問題的解決方 案，主要利用金屬遮蔽物將待測的電壓變頻器包覆起來。 對於電源轉換器的測試設備，負載效應會影響電源轉換 器的輸出特性，會造成測試上的負面影響。爲了進一步提高 測試的準確性，降低負載效應成爲一個很重要的課題。然 而，上述前案並未揭示或暗示如何降低負載效應對電源轉換 器的影響。再者，根據上述前案所提供之測試設備，僅述及 如何測量電源轉換器之操作電壓及操作電流，並未進一步揭 示模擬單管故障或失效，或對測量電源轉換器的開放電壓有 進一步的建議。 【發明內容】 本發明所揭示之冷陰極燈管驅動模組之測試設備，其中 該驅動模組包含複數個電源轉換器，該測試設備主要包含 有：一模擬負載模組，其具有複數個模擬負載單元，每一個 該等模擬負載單元之負載相當於一個冷陰極燈管之負載；一 電流測試模組，其具有複數個電流測試單元，用以量測該等 電源轉換器之操作電流及頻率；一第1電壓測試模組，其具 有複數個電壓測試單元，用以量測該等電源轉換器之操作電 1297779 ' 壓及頻率；一第2電壓測試模組，其具有複數個電壓測試單 元’用以量測該等電源轉換器之開放電壓及頻率；一直流電 阻測試模組，其具有複數個直流電阻測試單元，用以量測該 等電源轉換器之直流電阻；及一機械式氣動迴路連結模組， 其具有複數個迴路連結單元，該等迴路連結單元可各自地控 制對應的該等電流測試單元及該等模擬負載單元連結或不 連結。 本發明得進一步包含一第1機械式氣動推動裝置，該模 & 擬負載模組及該電流測試模組係可移除地安裝在該第1機械 式氣動推動裝置，其可移動該模擬負載模組及該電流測試模 組，可使該模擬負載模組與該驅動模組連接或分離；一第2 機械式氣動推動裝置，該第1電壓測試模組係可移除地安裝 在該第2機械式氣動推動裝置，其可移動該第1電壓測試模 組，可使該第1電壓測試模組與該驅動模組連接或分離；一 第3機械式氣動推動裝置，該第2電壓測試模組係可移除地 安裝在該第3機械式氣動推動裝置，其可移動該第2電壓測 t 試模組，可使該第2電壓測試模組與該驅動模組連接或分 離；及一第4機械式氣動推動裝置，該直流電阻測試模組係 可移除地安裝在該第4機械式氣動推動裝置，其可移動該直 流電阻測試模組，可使該直流電阻測試模組與該驅動模組連 接或分離；一氣閥模組，用以控制該機械式氣動迴路連結模 組及該等機械式氣動推動裝置。 藉由該機械式氣動迴路連結模組及該等機械式氣動堆 動裝置的設置，確實可降低由負載效應所造成對量測上負面 1297779 ； 的影響，提高量測上的準確性。 _ 另一方面，本發明得另外包含一第5機械式氣動推動裝 置，該驅動模組係可移除地安裝在該第5機械式氣動推動裝 置，其藉由該氣閥控制模組所控制可在一退出位置及一測試 位置之間移動該驅動模組，以便於在退出位置上安裝或移除 該驅動裝置。 了解先前技術的問題及缺點，因此本發明之主要目的， 在於提供一冷陰極燈管驅動模組之測試設備，可降低量測時 ® 由負載效應所造成的影響，提高測量的準確性。 本發明之另一目的，在於提供一冷陰極燈管驅動模組之 測試設備，利用模組化的設計，可依據不同的驅動模組進行 快速更換測試模組。 本發明的另一目的，在於提供一冷陰極燈管驅動模組之 測試設備，在同一時間點及同一條件下，可同時對驅動模組 上之每一個電源轉換器量測其輸出電源特性。 本發明之另一目的，在於提供一冷陰極燈管驅動模組之 1 測試設備，可使測試線路模組化，有利於維修處理。 本發明之其他目的及優點，藉由詳閱本說明書可獲致良 好的理解。 【實施方式】 本發明一較佳實施例冷陰極燈管驅動模組之測試設備 1 ’其主要構成如第1圖所示，各模組的構成如第2圖所示， 其中爲待測物的驅動模組5 0包含複數個電源轉換器5 0 0，測 試設備1主要包含有：一模擬負載模組1 1，其具有複數個模 1297779 / 擬負載單元110，每一個該等模擬負載單元110之負載相當 - 於一個冷陰極燈管之負載；一電流測試模組1 2，其具有複數 個電流測試單元1 2 0，用以量測該等電源轉換器5 〇 〇之操作 電流及頻率；一第1電壓測試模組1 3，其具有複數個電壓測 試單元130 ’用以量測該等電源轉換器500之操作電壓及頻 率；一第2電壓測試模組1 4，其具有複數個電壓測試單元 1 4 0，用以量測該等電源轉換器5 0 0之開放電壓及頻率；一 直流電阻測試模組1 5，其具有複數個直流電阻測試單元 ® 150，用以量測該等電源轉換器5 00之直流電阻；一機械式 氣動迴路連結模組16，其具有複數個迴路連結單元16〇，該 等迴路連結單元1 6 0可各自地控制對應的該等電流測試單元 120及該寺模擬負載單兀110連結或不連結；一第1機械式 氣動推動裝置1 7，該模擬負載模組1 1及該電流測試模組j 2 係可移除地安裝在該第1機械式氣動推動裝置17，該第i * 機械式氣動推動裝置1 7可移動該模擬負載模組1 1及該電流 測試模組1 2，可使該模擬負載模組1 1與該驅動模組5 〇連接 ^ 或分離；一第2機械式氣動推動裝置1 8，該第1電壓測試模 組1 3係可移除地安裝在該第2機械式氣動推動裝置1 8，該 第2機械式氣動推動裝置1 8可移動該第1電壓測試模組 1 3，可使該第1電壓測試模組1 8與該驅動模組5 0連接或分 離；一第3機械式氣動推動裝置1 9，該第2電壓測試模組 14係可移除地安裝在該第3機械式氣動推動裝置19,該第3 機械式氣動推動裝置1 9可移動該第2電壓測試模組1 4，可 使該第2電壓測試模組1 4與該驅動模組5 0連接或分離；一 1297779 第4機械式氣動推動裝置20，該直流電阻測試模組！ 5係可 移除地安裝在該第4機械式氣動推動裝置20,該第4機械式 氣動推動裝置20可移動該直流電阻測試模組1 5，可使該直 流電阻測試模組1 5與該驅動模組5 0連接或分離；一第5機 械式氣動推動裝置22，該驅動模組5 0係可移除地安裝在該 第5機械式氣動推動裝置22，該第5機械式氣動推動裝置 2 2可在一退出位置及一測試位置之間移動該驅動模組；及一 氣閥模組2 1，用以控制該機械式氣動迴路連結模組丨6及該 等機械式氣動推動裝置17、18、19、20及22。 當要對待測的驅動模組5 0進行測試時，在退出位置上 將該驅動模組50安裝在該第5機械氣動推動裝置22，並藉 由該第5機械氣動推動裝置22將該驅動模組5 0移至測試位 置，以便進一步的測量。 當要測量該驅動模組50之電源轉換器500的操作電流 及頻率時，藉由該第1機械式氣動推動裝置17使該模擬負 載模組1 1連接該驅動模組5 0，並藉由該機械式氣動迴路連 結模組1 6使該電流測試模組1 2連接該模擬負載模組丨〗，這 使得該驅動模組5 0、該模擬負載模組1 7及該電流測試模組 1 2形成迴路系統。由一外接的電源轉換器輸入控制器8輸入 電壓及訊號啓動該驅動模組5 0。此時，由該電流測試模組 1 2測得的該驅動模組5 0之電源轉換器5 0 0的輸出操作電流 轉換成電子訊號，將電子訊號傳送至一外接的分析單元6， 由該分析單元6記錄並進一步分析驅動模組5 〇之電源轉換 器5 0 0的操作電流、頻率。 1297779 ： 當要測量該驅動模組5 0之電源轉換器5 Ο 0的操作電壓 「及頻率時，藉由該第i機械式氣動推動裝置1 7使該模擬負 載模組1 1連接該驅動模組5 0，並藉由該機械式氣動迴路連 結模組1 6使該電流測試模組丨2連接該模擬負載模組n，這 使得該驅動模組5 0、該模擬負載模組1 7及該電流測試模組 1 2形成迴路系統。由一外接的電源轉換器輸入控制器8輸入 電壓及訊號啓動該驅動模組50。藉由該第2機械式氣動推動 裝置1 8使該第1電壓測試模組1 3連接該驅動模組5 0。此 # 時，由該電流測試模組1 2及該第1電壓測試模組1 3同時測 得的該驅動模組50之電源轉換器500的輸出操作電流及操 作電壓轉換成電子訊號，將電子訊號傳送至該分析單元6， 由該分析單元6記錄並進一步分析驅動模組5 0之電源轉換 器5 00的操作電流、電壓、頻率及功率等。 當要測量該驅動模組50之電源轉換器500的開放電壓 時，在該模擬負載模組1 1不與該驅動模組5 0連結的情況 下，藉由該第3機械式氣動推動裝置1 9使該第2電壓測試 ^ 模組1 4連結該驅動模組50。由該電源轉換器輸入控制器8 輸入電壓及訊號啓動該驅動模組5 0。此時，由該第2電壓測 試模組14測量的該驅動裝置50之電源轉換器500的開放電 壓轉換成電子訊號，將電子訊號傳送至該分析單元6，由該 分析單元6記錄並進一步分析驅動模組50之電源轉換器500 的開放電壓、頻率及開放電壓動作時間。此時該驅動模組5 0 與該測試設備1之間的負載效應可降至最低。 當要測量該驅動模組50之電源轉換器500的直流電阻 -12- 1297779 利範圍之文字記載爲準，即不偏離本發明申請專利範圍所爲 之均等變化與修飾，應仍屬本發明之涵蓋範圍。 【圖式簡單說明】 第1圖係本發明較佳實施例之方塊圖；及 第2a〜2g圖係顯示本發明較佳實施例各模組之示意圖。 【主要元件符號說明】1297779 IX. Description of the Invention: - Technical Field of the Invention The present invention relates to a test device for a power converter inverter, and more particularly to a drive module test device capable of reducing a load effect, the drive module being used for driving Cold cathode lamp CCFL. [Prior Art] 'At present, flat panel displays are gradually replacing image tube displays, which will become the mainstream in the future. The flat panel display can be classified into non-self-illuminating type according to the light source, such as a general liquid crystal display device L C D, and a self-illuminating type, such as an organic electroluminescence display OLED and a plasma TV PDP. Among them, non-self-illuminating flat-panel displays mostly use cold cathode lamps as a light source, especially in large-size liquid crystal displays. Due to the variety of sizes and specifications of liquid crystal displays, the types of cold cathode lamps are also diversified, such as the number, length and power of lamps. Of course, the power converter used to drive the cold cathode lamp must also be equipped with a variety of different configurations of the lamp. On the other hand, the functions of power converters are becoming more diverse. Therefore, there is a need for a test device that is scalable, highly accurate, and has multiple test functions for various types of drive modules. In the past, when testing a single power converter on a drive module, each of the power converters was individually measured using individual current test instruments and voltage test instruments, which made the test take time along with the power converter. The number is increasing and prolonged. This means that more quality control time will be spent. In addition, for example, voltage and current are tested separately, rather than measured in the same state. In the case of different test conditions, the true characteristics of the power conversion 1297779 are often not correctly reflected. A test device capable of testing a voltage converter suitable for a single lamp to a plurality of lamps is proposed, such as the domestic application of the invention patent No. 92 1 3 723 4 "test device for voltage inverter", which mainly utilizes a load module Simulate the load environment of the single-lamp to multi-lamp, and use the detection module to connect with the load module to detect the voltage, current and frequency of the voltage inverter. In addition, the above predecessor discloses a solution to the problem of electromagnetic interference caused by a voltage converter, which mainly uses a metal shield to wrap the voltage converter to be tested. For test equipment of power converters, the load effect affects the output characteristics of the power converter, which can have a negative impact on the test. In order to further improve the accuracy of the test, reducing the load effect has become an important issue. However, the foregoing case does not reveal or suggest how to reduce the effect of load effects on the power converter. Furthermore, according to the test equipment provided in the above previous case, only how to measure the operating voltage and operating current of the power converter is mentioned, and the analog single-tube fault or failure is not further revealed, or the open voltage of the measuring power converter is further developed. Suggestions. SUMMARY OF THE INVENTION A test device for a cold cathode lamp driving module disclosed in the present invention, wherein the driving module comprises a plurality of power converters, the testing device mainly comprises: an analog load module having a plurality of simulations The load cell, the load of each of the analog load cells is equivalent to the load of a cold cathode lamp; a current test module having a plurality of current test units for measuring the operating current and frequency of the power converters a first voltage test module having a plurality of voltage test units for measuring the operating voltage of the power converters 1297779 'voltage and frequency; a second voltage test module having a plurality of voltage test units 'To measure the open voltage and frequency of the power converters; the DC resistance test module has a plurality of DC resistance test units for measuring the DC resistance of the power converters; and a mechanical pneumatic a loop connection module having a plurality of loop connection units, each of which can control respective ones of the current test units And the analog load cells are connected or not connected. The invention further includes a first mechanical pneumatic pushing device, the mold & the load bearing module and the current testing module are removably mounted on the first mechanical pneumatic pushing device, which can move the simulated load The module and the current test module can connect or disconnect the analog load module to the drive module; and a second mechanical pneumatic push device, the first voltage test module is removably mounted on the first 2 mechanical pneumatic pushing device, which can move the first voltage testing module, can connect or disconnect the first voltage testing module and the driving module; a third mechanical pneumatic pushing device, the second voltage test The module is removably mounted on the third mechanical pneumatic pushing device, and the second voltage measuring module can be moved to connect or disconnect the second voltage testing module to the driving module; and A fourth mechanical pneumatic pushing device, the DC resistance testing module is removably mounted on the fourth mechanical pneumatic pushing device, which can move the DC resistance testing module, and the DC resistance testing module can be The drive module Or isolated; a valve module for controlling the mechanical and pneumatic circuit connecting group mode such machinery pneumatic pushing means. With the mechanical pneumatic circuit connection module and the arrangement of the mechanical pneumatic stacking device, the influence of the negative effect on the measurement caused by the load effect can be reduced, and the accuracy in the measurement is improved. In another aspect, the present invention may further comprise a fifth mechanical pneumatic pushing device, the driving module being removably mounted on the fifth mechanical pneumatic pushing device, which is controlled by the air valve control module The drive module can be moved between an exit position and a test position to facilitate installation or removal of the drive unit in the exit position. Knowing the problems and shortcomings of the prior art, the main object of the present invention is to provide a test device for a cold cathode lamp driving module, which can reduce the influence caused by the load effect during the measurement and improve the measurement accuracy. Another object of the present invention is to provide a test device for a cold cathode lamp driving module, which can be quickly replaced with a test module according to different driving modules. Another object of the present invention is to provide a test device for a cold cathode lamp driving module, which can measure the output power characteristics of each power converter on the driving module at the same time and under the same conditions. Another object of the present invention is to provide a test device for a cold cathode lamp tube driving module, which can modularize the test circuit and facilitate maintenance processing. Other objects and advantages of the present invention will be obtained by reading the specification. [Embodiment] A test device 1 of a cold cathode lamp driving module according to a preferred embodiment of the present invention has a main structure as shown in Fig. 1, and the configuration of each module is as shown in Fig. 2, wherein the object to be tested is The driving module 50 includes a plurality of power converters 500. The testing device 1 mainly comprises: an analog load module 1 1 having a plurality of modules 1297779 / pseudo load units 110, each of the analog load units The load of 110 is equivalent to the load of a cold cathode lamp; a current test module 12 has a plurality of current test units 120 for measuring the operating current and frequency of the power converters 5 a first voltage test module 13 having a plurality of voltage test units 130' for measuring the operating voltage and frequency of the power converters 500; a second voltage test module 14 having a plurality of The voltage test unit 140 is configured to measure the open voltage and frequency of the power converters 500; the DC resistance test module 15 has a plurality of DC resistance test units® 150 for measuring the Waiting for the DC converter of the power converter 5 00 A mechanical pneumatic circuit connection module 16 having a plurality of circuit connection units 16 〇, the circuit connection units 160 can individually control the corresponding current test unit 120 and the temple analog load unit 110 Or not connected; a first mechanical pneumatic pushing device 177, the analog load module 1 1 and the current testing module j 2 are removably mounted on the first mechanical pneumatic pushing device 17, the ith * The mechanical pneumatic pushing device 1 7 can move the analog load module 1 1 and the current testing module 12 to connect or separate the analog load module 1 1 from the driving module 5; Mechanical pneumatic pushing device 18. The first voltage testing module 13 is removably mounted on the second mechanical pneumatic pushing device 18. The second mechanical pneumatic pushing device 18 can move the first The voltage test module 13 can connect or disconnect the first voltage test module 18 to the drive module 50; a third mechanical pneumatic push device 179, the second voltage test module 14 can Removably mounted to the third mechanical pneumatic pusher 19, the third mechanical pneumatic The second voltage test module 14 can be connected or disconnected from the second voltage test module 14 to the drive module 50; a 1297779 fourth mechanical pneumatic push device 20, DC resistance test module! 5 is removably mounted on the fourth mechanical pneumatic pushing device 20, the fourth mechanical pneumatic pushing device 20 can move the DC resistance testing module 15 to enable the DC resistance testing module 15 and the The driving module 50 is connected or disconnected; a fifth mechanical pneumatic pushing device 22 is removably mounted on the fifth mechanical pneumatic pushing device 22, and the fifth mechanical pneumatic pushing device 2 2, the driving module can be moved between an exit position and a test position; and a gas valve module 2 1 for controlling the mechanical pneumatic circuit connection module 丨6 and the mechanical pneumatic pushing device 17, 18, 19, 20 and 22. When the driving module 50 to be tested is to be tested, the driving module 50 is mounted on the fifth mechanical pneumatic pushing device 22 at the exit position, and the driving mode is driven by the fifth mechanical pneumatic pushing device 22. Group 50 moves to the test position for further measurements. When the operating current and frequency of the power converter 500 of the driving module 50 are to be measured, the analog load module 1 1 is connected to the driving module 50 by the first mechanical pneumatic pushing device 17 and The mechanical pneumatic circuit connection module 16 connects the current test module 12 to the analog load module, which causes the drive module 50, the analog load module 17 and the current test module 1 2 form a loop system. The drive module 50 is activated by an external power converter input controller 8 input voltage and signal. At this time, the output operating current of the power converter 500 of the driving module 50 measured by the current testing module 12 is converted into an electronic signal, and the electronic signal is transmitted to an external analyzing unit 6. The analyzing unit 6 records and further analyzes the operating current and frequency of the power converter 500 of the driving module 5 . 1297779: When the operating voltage "and the frequency of the power converter 5 Ο 0 of the driving module 50 is to be measured, the analog load module 1 1 is connected to the driving mode by the i-th mechanical pneumatic pushing device 17. a group of 50, and the current test module 丨2 is connected to the analog load module n by the mechanical pneumatic circuit connection module 16. The drive module 50, the analog load module 17 and The current test module 12 forms a loop system. The input voltage and signal are input from an external power converter input controller 8 to activate the drive module 50. The first voltage is driven by the second mechanical pneumatic push device 18. The test module 1 3 is connected to the drive module 50. When the current test module 1 2 and the first voltage test module 1 3 are simultaneously measured, the power converter 500 of the drive module 50 is simultaneously measured. The output operating current and the operating voltage are converted into electronic signals, and the electronic signals are transmitted to the analyzing unit 6. The analyzing unit 6 records and further analyzes the operating current, voltage, frequency and power of the power converter 500 of the driving module 50. Etc. When measuring the power of the drive module 50 In the case of the open voltage of the source converter 500, when the analog load module 1 1 is not connected to the drive module 50, the second mechanical test device 19 is used to make the second voltage test mode. The driving module 50 is connected to the driving module 50. The input voltage and signal are input from the power converter input controller 8 to activate the driving module 50. At this time, the driving device 50 is measured by the second voltage testing module 14. The open voltage of the power converter 500 is converted into an electronic signal, and the electronic signal is transmitted to the analyzing unit 6. The analyzing unit 6 records and further analyzes the open voltage, frequency and open voltage operating time of the power converter 500 of the driving module 50. At this time, the load effect between the driving module 50 and the testing device 1 can be minimized. When the DC resistance of the power converter 500 of the driving module 50 is to be measured, the range of the -12-12297779 is recorded as The equivalent variations and modifications of the present invention are intended to be within the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a preferred embodiment of the present invention; and 2a ~2g diagram A schematic diagram showing each module of the preferred embodiment of the present invention.
1 冷 陰 極 燈 管 驅 動 模 組 之 測試設備 11 模 擬 負 載 模 組 110 模 擬 負 載 單 元 12 電 流 測 試 模 組 120 電 流 測 試 單 元 13 第 1 電 壓 測 試 模 組 130 第 1 電 壓 測 試 單 元 14 第 2 電 壓 測 試 模 組 140 第 2 電 壓 測 試 單 元 15 直 流 電 阻 測 試 模 組 150 直 流 電 阻 測 試 16 機 械 式 氣 動 迴 路 連 結 模 組 160 機 械 式 氣 動 迴 路 連 結 單 元 17 第 1 機 械 式 氣 動 推 動 裝 置 18 第 2 機 械 式 氣 動 推 動 裝 置 19 第 3 機 械 式 氣 動 推 動 裝 置 20 第 4 機 械 式 氣 壬二 動 推 動 裝 置 21 氣 閥 模 組 22 第 5 機 械 式 氣 動 推 動 裝 置 -1 1297779 23 氣 體 通 道 50 驅 動 模 組 500 電 源 轉 換 器 6 分 析 單 元 7 氣 閥 控 制 單 元 8 電 源 轉 換 器 輸入控制器1 Test equipment for cold cathode lamp drive module 11 Analog load module 110 Analog load unit 12 Current test module 120 Current test unit 13 1st voltage test module 130 1st voltage test unit 14 2nd voltage test module 140 2nd voltage test unit 15 DC resistance test module 150 DC resistance test 16 Mechanical pneumatic circuit connection module 160 Mechanical pneumatic circuit connection unit 17 1st mechanical pneumatic push device 18 2nd mechanical pneumatic push device 19 3rd mechanical Pneumatic pusher 20 4th mechanical pneumatic pusher 21 air valve module 22 5th mechanical pneumatic pusher-1 1297779 23 gas channel 50 drive module 500 power converter 6 analysis unit 7 gas valve control unit 8 power converter input controller
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