200837313 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種送風 噪音且提高電能❹效㈣送風機特別種可以降低 【先前技術】 參閱圖1及圖2，習知的中央 築物室外的供水主機9(可為冰水主二機周=先包括一裝設於建 驅使冷空氣或熱空氣進人室㈣或熱⑽爐）及一用以 古一 + μ n k風機8，該供水主機9具 有-出水官91及一進水管92 ^ ^ . — w I田具出水官91輸出冰水 或熱水，该迗風機8包括一 〇9 ^ . K ^ & 81、一溫度偵測模組 α 7馬達83、-驅動模組μ、-控制模…一 個三通閥86。 該風機盤管81具有—進水口 811及一出水口 812。該 二通間86連接於該供水主機9及該風機盤管81之間。該 供水主機9由其出水管91輸出冰水或熱水至該三通閥86’ 該三通閥86可將冰水或熱水導人該風機盤f 81的進水口 811或是導回到該供水主機9的進水管92。 該溫度偵測模組82裝設於室内並债測室内的溫度，該 =模組85接收使用者鼓之室溫，該驅動模組84與該 父流馬達83、該溫度勤j模組82及該控制模組85電性連 接且依據5亥溫度偵測模組82測得之室溫及使用者設定之 =溫、，驅動該交流馬達83以高轉速、中轉速及低轉速等三 ί又轉速的其中之一帶動_風扇（圖未示）轉動’該風扇轉動使 空氣流過該風機盤管81外侧並進入室内。當該供水主機9 200837313 之内的冰水降低該風 管81之外的空氣與 空氣，冷空氣流入室 當該供水主機9輸 輸出冰水時’由於進入該風機盤管μ 機盤管81整體的温度，流過該風機盤 該風機盤管81進行熱交換之後成為冷 内即可達到降低室溫的目的。相反地， 出熱水時，可以達到升高室溫的目的。200837313 IX. Description of the invention: [Technical field of the invention] The present invention relates to a kind of air supply noise and improves the efficiency of the electric energy. (4) The special type of the blower can be reduced. [Prior Art] Referring to Figures 1 and 2, the conventional central building is outdoor. Water supply main unit 9 (can be ice water main two machine week = first including a drive to drive cold air or hot air into the room (four) or hot (10) furnace) and one for the ancient one + μ nk fan 8, the water supply The main engine 9 has a water discharge official 91 and an water inlet pipe 92 ^ ^ — w I field water discharge official 91 outputs ice water or hot water, and the blower 8 includes a 〇 9 ^ . K ^ & 81, a temperature detection Module α 7 motor 83, - drive module μ, - control die ... a three-way valve 86. The fan coil 81 has a water inlet 811 and a water outlet 812. The two-way room 86 is connected between the water supply main unit 9 and the fan coil unit 81. The water supply main unit 9 outputs ice water or hot water to the three-way valve 86' from the water outlet pipe 91. The three-way valve 86 can guide the ice water or hot water to the water inlet 811 of the fan disk f 81 or lead back to the water inlet 811. The water inlet pipe 92 of the water supply main unit 9. The temperature detecting module 82 is installed indoors and measures the temperature in the room. The module 85 receives the room temperature of the user drum, the driving module 84 and the parent flow motor 83, and the temperature module 86. And the control module 85 is electrically connected and according to the room temperature measured by the 5H temperature detecting module 82 and the temperature set by the user, the AC motor 83 is driven to a high speed, a medium speed, and a low speed. One of the rotational speeds drives a fan (not shown) to rotate. The fan rotates to allow air to flow outside the fan coil 81 and into the chamber. When the ice water in the water supply host 9 200837313 lowers the air and air outside the air duct 81, the cold air flows into the room when the water supply host 9 outputs the ice water. 'Because of entering the fan coil μ machine coil 81 as a whole The temperature is reduced by flowing through the fan coil 81 of the fan tray for heat exchange, and then the temperature is lowered to achieve the purpose of lowering the room temperature. Conversely, when hot water is discharged, the purpose of raising the room temperature can be achieved.
當該溫㈣測敎82測得之室溫與設定的室溫不同時 ，該驅動模組84 U以高轉速驅動該交流馬達幻轉動， 以快速粗調的方式使測得之室溫接近設定的溫度，接著再 以中轉速或是低轉速驅動該交流馬達83，以細調的方式使 測得之室溫逐漸達到使用者設定的溫度。 仁疋田》亥/皿度偵測模組82測得之室溫已經降低或升高 到設定的室溫，且該驅動模組84已經控制該交流馬達^ 在低轉速的狀態，由於該交流馬達83持續以低轉速轉動驅 動冷空《I或熱空氣吹向室内且無法再降低轉速，為了防止 室溫因此而繼續下降或升高，該送風冑8必須利用該三通 閥86將Θ供水主機9輸出的冰水或熱水導回該供水主機9 ，避免冰水或熱水繼續流入該風機盤管81之内，並使該風 機盤管81的溫度逐漸上升或下降’流過該風機盤管μ之 =空氣即不會成為冷空氣或熱空氣，如此可使該送風機8 貫質上只對室内做送風動作，而不調整溫度，維持室溫在 設定的室溫。 但是在測得之室溫達到設定的室溫時，該交流馬達83 遂疋維持在低轉速的送風狀態，無法將轉速降低到趨近於〇 ’將會持續消耗f能，但其中用於調節溫度的電能很少， 6 200837313 導致該送風機s 成電能的㈣。且:此使用效率很低，大約只有3〇%，造 同的轉、亲鳇知 於该父流馬達83只能以有限的三段不 加速及減速等::三段轉速相差报大，當該交流馬達83在 ，如此往往會產生令人不悅的噪音。 疋驟中 每ϋ 了在室溫達到設定值時，能夠使該送風機8 二二…至内做送風的動作，該三通閥86對該習知的送 風機8是一頊又I+ π ,- 、 或缺的70件，而裝設該三通閥會增加 製造該送風機8的士、士 々成本，且使製造過程變得較為複雜。 【發明内容】 匕本毛明之目的，即在提供一種可以降低噪音且 提高電能使用效率的送風機。 〃 上於是，本發明送風機，適用於連接至—供水主機並接 收該供水主機流出的冰水或熱水以調整室溫，該送風機包 3 ’皿度偵測杈組、一控制模組、一風 達及一驅動模組。 直/瓜馬 該温度偵測模組偵測室溫並輸出測得之室溫。 該控制模組接收設定之室溫。 該風機盤管連接該供水主機，並將該供水主機流出的 水導回該供水主機。 該直流馬達用於驅動空氣流過該風機盤管。 该驅動_、组與該溫度债測模組、言亥控制I组及該直流 馬達電性連接，並依據測得之室溫及設定之室溫，調整該 直流馬達的轉速，以使測得之室溫達到設定之室溫。 200837313 【實施方式】 有關本發明之前述及苴 ^他技術内谷、特點與功效，在 以下配合參考圖式 、h文在 平乂佳貫^例的砰細說明中，將可 清楚的呈現。 fWhen the temperature measured by the temperature (four) test 82 is different from the set room temperature, the drive module 84 U drives the AC motor to rotate at a high speed, and the measured room temperature is set close to the setting in a quick and coarse adjustment manner. The temperature is then driven by the AC motor 83 at a medium or low speed to gradually adjust the measured room temperature to a temperature set by the user. The room temperature measured by the 疋田田海/Dishness detection module 82 has been lowered or raised to a set room temperature, and the drive module 84 has controlled the AC motor ^ at a low speed state due to the AC motor 83 continues to drive the cold air at a low speed. I or hot air is blown into the room and can no longer reduce the speed. In order to prevent the room temperature from continuing to drop or rise, the air blower 8 must use the three-way valve 86 to supply the water supply host. 9 The output ice water or hot water is led back to the water supply host 9 to prevent the ice water or hot water from continuing to flow into the fan coil 81, and the temperature of the fan coil 81 gradually rises or falls 'flows through the fan tray The tube μ = air does not become cold air or hot air, so that the blower 8 can only perform air supply operation on the chamber without adjusting the temperature and maintaining the room temperature at the set room temperature. However, when the measured room temperature reaches the set room temperature, the AC motor 83 遂疋 is maintained at a low-speed air supply state, and the rotation speed cannot be reduced to approach 〇', which will continue to consume f energy, but which is used for adjustment. The electrical energy of the temperature is very small, 6 200837313 causes the blower s to generate electricity (4). And: the use efficiency is very low, about 3%, the same turn, the relative knows that the parent flow motor 83 can only accelerate and decelerate with a limited three-stage:: The three-phase speed difference is large, when The AC motor 83 is so, which tends to produce unpleasant noise. When the temperature reaches the set value at room temperature, the air blower 8 can be made to perform the air supply operation. The three-way valve 86 is a pair of the conventional blower 8 and I + π, -, 70 pieces are missing, and the installation of the three-way valve increases the cost of manufacturing the blower 8 and the cost of the manufacture, and makes the manufacturing process more complicated. SUMMARY OF THE INVENTION The purpose of the present invention is to provide a blower that can reduce noise and improve power usage efficiency. Therefore, the air blower of the present invention is suitable for connecting to the water supply host and receiving ice water or hot water flowing out from the water supply host to adjust the room temperature, the blower package 3's degree detection group, a control module, and a Wind up and a drive module. Straight/Gua Ma The temperature detection module detects room temperature and outputs the measured room temperature. The control module receives the set room temperature. The fan coil is connected to the water supply host, and the water flowing out of the water supply host is led back to the water supply host. The DC motor is used to drive air through the fan coil. The driving _, the group is electrically connected to the temperature debt testing module, the haihai control group I and the DC motor, and adjusts the rotation speed of the DC motor according to the measured room temperature and the set room temperature, so as to make the measurement The room temperature reaches the set room temperature. 200837313 [Embodiment] The foregoing description of the present invention and its features, functions and effects will be clearly shown in the following description in conjunction with the reference drawings and the text. f
一’閱圖3 ’本發明送風機3之較佳實施例，適用於引入 :供水主冑4(可為冰水主機或熱水鋪）的冰核熱水以調 正室内的溫度，該送風冑3包含-風機盤管3卜-溫度伯 測板組32、一直流馬達％、一驅動模組34及一控制模组 35。祕水主機4具有—出水管41及一進水管42，並由其 出水官41輸出冰水或熱水。該風機盤管3ι具有—進水口 及-出水口 312，其進水口 311及出水口 312分別對應 連接該供水主機4的出水管41及進水管42。 該溫度價測模組32债測室内的溫度，該控制模組％ 接收使用者對室溫的設定值及對風速的設定值，該驅動模 組34包括-處理單元341及—驅動單元⑷，該驅動單元 342可驅動該直流馬達33轉動，該處理單元341與該溫度 偵測杈組32及該控制模組35電性連接，且依據該溫度偵 測模組32偵測到的室溫及該控制模組35接收到之使用者 的认疋，透過該驅動單元342控制該直流馬達33帶動一風 扇（圖未不）轉動的速度，以將空氣導向該風機盤管31而成 為冷空氣或熱空氣，並流入室内以調整室内的溫度到使用 者的設定值。 在本發明之較佳實施中，該控制模組35可接收使用者 設定三段風速及所需要的室溫，且該三段風速分別為強風 8 200837313 、中風及弱風，該直流馬達33對應該三段風速的轉速值分 別為120〇rpm、600rpm及3〇〇rpm，但是不以此為限。 當使用者設定風速時，該驅動模組34在一段特定的時 間T1之内驅動該直流馬達33以不同的加速度，使其轉速 達到對應使用者設定之風速的轉速，且在該段特定時間耵 之後自動調整其轉速到恰可使室溫維持在使用者設定的溫 度。 在本發明之較佳實施例中，該驅動模組34是設定該段 特疋時間T1等於10分鐘，但是不以此為限。 Θ 4所示疋對應強風及弱風下該直流馬達3 3轉速的變 化狀況。例如若是使用者設定強風，則該驅動模組34驅動 忒直流馬達33以較高的加速度使轉速達到12〇〇rpm，並在 1〇分鐘之後驅動該直流馬達33，將其轉速自動調整到可使 至溫維持在設定值；而若是使用者設定弱風，則該驅動模 組34驅動該直流馬達33以較低的加速度使轉速達到 Orpm並在1 〇分麵之後驅動該直流馬達3 3，將其轉速自 動調整到可使室溫維持在設定值。雖然該直流馬達33以較 南的加速度轉動會增加噪音，但是使用者可藉此調整本發 明之送風機3的風速，使室溫在較短的時間之内達到其所 需要的溫度，以符合其需要。 而若是使用者沒有設定風速，則該驅動模組34自動調 整该直流馬達33的轉速到可使室溫維持在設定值。 比較圖2及圖4可知，由於該驅動模組34以無段變速 的方式改變該直流馬達33的轉速，且該直流馬達的轉 9 200837313 速可以降到幾乎料G，當測得之室溫已經達到設定之室、w 時’可使流過該風機盤管31之空氣流速等於Q或是趨近: 〇’所以幾乎不會有冷空氣或熱空氣進人室内影響已經調敕 好的室溫，因此相較於習知的送風機需要以三通闕將^ =水主機的冰水或熱水導回該供水主機，本發明的送風 枝不品要以三通間阻止冰水或熱水流入該風機盤管31， 口此y以痛去三通閥的成本及裝設上的麻煩。 參閱圖5，該驅動模組34是 流馬達的轉速： 疋依據以下的流程控制該直 是該處理單元341判斷使用者是否重新設定風 速右疋則跳到步驟22;若否，則執行步驟24。 步驟22是該處理單元341啟 執行步驟23。 早凡341啟動计時益開始計時’接著 定時㈣㈣如達到該特 疋執仃步驟29,若否則執行步驟以。 乂驟24是該處理單 若是^執行步驟25，若㈣執好Γ2Γ Λ定風速， 是使用者0疋°亥處理早70 341判斷使用者設定的風速，若 者設定接:;一 3是使用 的風若是使用者設定 流馬達33:::處理單元341控制該驅動單元342使該直 *驟2:::生強風，接著執行步驟& 處理單元341控制該驅動單元342使該直 200837313 流馬達33的轉速產生中風，接著執行步驟21。 步驟28是該處理單元341控制該驅動單元342使該直 流馬達33的轉速產生弱風，接著執行步驟21。 步驟29是該處理單元341自動調整該直流馬達33的 轉速以使室溫達到使用者設定的溫度，接著執行步驟21。 參閱圖6，當該供水主機4輸出冰水時，步驟29是包 含以下的子步驟： 子步驟291是該處理單元341接收使用者設定之室溫 < ，接著執行步驟292。 子步驟292是該處理單元341接收測得之室溫，接著 執行步驟293。 子步驟293是該處理單元341計算測得之室溫與設定 之室溫的溫差，接著執行步驟294。 子步驟294是該處理單元341判斷溫差大小，若是小 於0 (表示太冷）則接著執行步驟295 ;若是等於0則接著 執行步驟296 ;若是大於0 (表示不夠冷）則接著執行步驟 < 297。 子步驟295是該處理單元341以比例積分技術 (proportional integral)，使該驅動單元342驅動該直流馬達 33減速。 子步驟296是該處理單元341使該驅動單元342維持 該直流馬達33轉速在定值。 子步驟297是該處理單元341以比例積分技術，使該 驅動單元342驅動該直流馬達33加速。 11 200837313 田口x仏水主機輸出熱水時， 虛理罝；m 千乂驟294對應修改成該 處理早7L 341判斷溫差大小， 接荽勃—丰_ 疋小於〇 (表示不夠熱）則 接者執仃步驟297;若是等於 Ο ( ^ ^ μ λ 則接者執仃步驟296 ;若是 大於〇(表不太熱）則接著執行步驟295。 值得注意的是，本發明送 闰土 -、 、風機3遇可以包含一個三通 ^ ^ ^ At 栈盤官31及該供水主機4 的連接態樣與習知中丰处士闲么^ , 、 τ夬工s周糸統的送風機相同，藉由該三 通閥將該供水主機4輸㈣冰水或熱水導㈣供水主機4, 可使該風機盤管31的溫度不再維持低溫或高溫，配合該直 流馬達33的轉速可調龍低，料風機3可更準確的將室 溫維持在設定值。因此該三通_於本發日錢風機3並非 必要的元件，當省略該三通閥時，更可以降低本發明之送 風機3的製作成本。 此外，由於工業界已經有其他許多的方式可驅動該直 流馬達33的轉速，該驅動模組34也可以其他的方式驅動 该直流馬達33將溫度調整至使用者設定的室溫，不限於圖 5及圖6所示的流程，只要能將該直流馬達33以無段變速 的方式調整到極低的轉速即可。 值得注意的是，本發明之送風機3的驅動模組34可以 獨立販售。 綜合上述，本發明送風機3包含該直流馬達33且可使 該直流馬達33的轉速降到很低，因此可使電能的使用效率 提高，且由於該驅動模組34以無段變速的方式驅動該直流 馬達33，因此該直流馬達33切換轉速時發出的嚷音較小， 12 200837313 而即便在省去-個三通閥將該供水主機4輸出的冰水或熱 水導回，因為該驅動模組34可使該直流馬達幻的轉速降 到很低，進而可使冷空氣或熱空氣的流速低到幾乎不會影 響室内的溫度，因此確實可以達到本發明的目的。 惟以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明㈣之範圍，即大凡依本發Μ請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一示意圖，說明習知中央空調系統之一送風機 及一供水主機間的連接關係； 圖2是一轉速圖，說明習知該送風機的一交流馬達在 二¥又轉速之間切換； 圖3疋示思圖，說明本發明送風機與一供水主機間 的連接關係； 圖4疋一轉速圖，說明本發明送風機的一直流馬達以 無段變速的方式切換轉速； 圖5疋本發明送風機的一驅動模組驅動該直流 馬達的 一流程圖；及 圖6疋本發明运風機的該驅動模組在對應自動風速的 U形下驅動該直流馬達的一流程圖。 13 200837313 【主要元件符號說明】 3 * ¥ …*送風機 35···""·· 控制模組 31""* …·風機盤管 4………· 供水主機 311… …*進水口 41……… 出水管 312… …*出水口 «#****«*« 進水管 32…… 溫度偵測模組 ^ 1 ««*«***¥« 特定時間 3 3…… <…直流馬達 21〜29…, 步驟 3 4…… *…驅動模組 291〜297 步驟 14A preferred embodiment of the air blower 3 of the present invention is suitable for introducing ice core hot water of a water supply main raft 4 (which may be an ice water main or a hot water paving) to adjust the temperature in the room. 3 includes a fan coil 3 - a temperature measuring board group 32, a DC motor %, a driving module 34 and a control module 35. The secret water main unit 4 has an outlet pipe 41 and an inlet pipe 42, and the water discharge officer 41 outputs ice water or hot water. The fan coil 3i has a water inlet and a water outlet 312, and the water inlet 311 and the water outlet 312 respectively correspond to the water outlet pipe 41 and the water inlet pipe 42 of the water supply main unit 4. The temperature measurement module 32 is configured to measure the temperature in the room, and the control module % receives the set value of the room temperature and the set value of the wind speed. The drive module 34 includes a processing unit 341 and a driving unit (4). The driving unit 342 can drive the DC motor 33 to rotate. The processing unit 341 is electrically connected to the temperature detecting unit 32 and the control module 35, and according to the room temperature detected by the temperature detecting module 32. The control module 35 receives the user's acknowledgment, and the driving unit 342 controls the speed at which the DC motor 33 drives a fan (not shown) to direct air to the fan coil 31 to become cold air or Hot air flows into the room to adjust the temperature in the room to the user's set point. In a preferred implementation of the present invention, the control module 35 can receive the user to set the three-stage wind speed and the required room temperature, and the three-stage wind speed is strong wind 8 200837313, stroke and weak wind, respectively. The speed values of the three sections of wind speed should be 120 rpm, 600 rpm and 3 rpm, respectively, but not limited to this. When the user sets the wind speed, the driving module 34 drives the DC motor 33 with a different acceleration for a certain period of time T1, so that the rotation speed reaches the rotation speed corresponding to the user-set wind speed, and during the specific time period. The speed is then automatically adjusted to maintain the room temperature at the temperature set by the user. In the preferred embodiment of the present invention, the driving module 34 sets the segment time T1 equal to 10 minutes, but is not limited thereto.疋 4 shows the change in the speed of the DC motor 3 3 under strong winds and weak winds. For example, if the user sets a strong wind, the drive module 34 drives the DC motor 33 to achieve a rotation speed of 12 rpm at a high acceleration, and drives the DC motor 33 after 1 minute to automatically adjust the rotation speed to The temperature is maintained at a set value; and if the user sets a weak wind, the drive module 34 drives the DC motor 33 to drive the rotational speed to Orpm at a lower acceleration and drive the DC motor 3 3 after 1 〇 facet, The speed is automatically adjusted to maintain the room temperature at the set value. Although the rotation of the DC motor 33 at a relatively south acceleration increases noise, the user can thereby adjust the wind speed of the blower 3 of the present invention so that the room temperature reaches its required temperature within a relatively short period of time to comply with the need. If the user does not set the wind speed, the drive module 34 automatically adjusts the rotational speed of the DC motor 33 to maintain the room temperature at the set value. Comparing FIG. 2 and FIG. 4, since the driving module 34 changes the rotation speed of the DC motor 33 in a stepless shifting manner, the speed of the DC motor can be reduced to almost G, when the measured room temperature is measured. When the set room has been reached, w, the air flow rate through the fan coil 31 can be equal to Q or approach: 〇' so there is almost no cold air or hot air entering the room to affect the room that has been tuned. Temperature, therefore, compared with the conventional blower, it is necessary to guide the ice water or hot water of the water main unit back to the water supply host by means of a three-way blower, and the air supply branch of the present invention does not block the ice water or hot water between the three links. Flowing into the fan coil 31, the y is painful to the cost of the three-way valve and the trouble of installation. Referring to FIG. 5, the driving module 34 is the rotation speed of the flow motor: 控制 according to the following flow control, the processing unit 341 determines whether the user resets the wind speed, and then jumps to step 22; if not, executes step 24 . Step 22 is that the processing unit 341 starts step 23. The early 341 starts the timing and starts timing. Then, the timing (4) (4), if the special step is reached, step 29, if otherwise, the steps are executed. Step 24 is that if the processing list is executed, step 25 is performed. If (4) the wind speed is set to Λ2Γ, the user determines that the wind speed set by the user is 70 341. If the user sets the wind speed, the one is set to be used; If the wind is the user setting flow motor 33::: the processing unit 341 controls the driving unit 342 to make the straight wind 2::: strong wind, then perform the step & the processing unit 341 controls the driving unit 342 to make the straight 200837313 flow motor The rotation speed of 33 generates a stroke, and then step 21 is performed. In step 28, the processing unit 341 controls the driving unit 342 to generate a weak wind in the rotational speed of the direct current motor 33, and then proceeds to step 21. In step 29, the processing unit 341 automatically adjusts the rotational speed of the DC motor 33 to bring the room temperature to a temperature set by the user, and then proceeds to step 21. Referring to Fig. 6, when the water supply host 4 outputs ice water, step 29 includes the following sub-steps: Sub-step 291 is that the processing unit 341 receives the user-set room temperature <RTIgt; Sub-step 292 is that the processing unit 341 receives the measured room temperature, and then proceeds to step 293. Sub-step 293 is that the processing unit 341 calculates the temperature difference between the measured room temperature and the set room temperature, and then proceeds to step 294. Sub-step 294 is that the processing unit 341 determines the magnitude of the temperature difference. If it is less than 0 (indicating too cold), then step 295 is performed; if it is equal to 0, then step 296 is performed; if it is greater than 0 (indicating that it is not cold enough), then step < 297 is performed. . Sub-step 295 is that the processing unit 341 is proportionally integrated to cause the drive unit 342 to drive the DC motor 33 to decelerate. Sub-step 296 is that the processing unit 341 causes the drive unit 342 to maintain the speed of the DC motor 33 at a constant value. Sub-step 297 is that the processing unit 341 uses a proportional-integral technique to cause the drive unit 342 to drive the DC motor 33 to accelerate. 11 200837313 When the Taenkou x 仏 water main engine outputs hot water, the imaginary 罝 m; m 乂 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 294 Step 297 is performed; if it is equal to Ο ( ^ ^ μ λ then the step 296 is performed; if it is greater than 〇 (the table is not too hot), then step 295 is performed. It is noted that the present invention delivers the earth-, and the fan 3 encounters can contain a three-way ^ ^ ^ At stacking official 31 and the connection mode of the water supply host 4 and the same as the familiar Zhongfeng sergeant, ^, τ 夬 s 糸 的 的 的 的 , , , The water supply main unit 4 sends (4) ice water or hot water guide (4) water supply host 4, so that the temperature of the fan coil 31 can no longer maintain low temperature or high temperature, and the speed of the DC motor 33 can be adjusted to be low, the material fan 3 The room temperature can be more accurately maintained at the set value. Therefore, the three-way is not an essential component of the present day, and when the three-way valve is omitted, the manufacturing cost of the blower 3 of the present invention can be further reduced. In addition, because the industry has many other ways to drive the straight The rotation speed of the motor 33, the drive module 34 can also drive the DC motor 33 to adjust the temperature to the room temperature set by the user, and is not limited to the flow shown in FIG. 5 and FIG. 6, as long as the DC motor 33 can be used. It is only necessary to adjust to a very low rotational speed in a stepless shifting manner. It is to be noted that the drive module 34 of the blower 3 of the present invention can be sold separately. In summary, the blower 3 of the present invention includes the DC motor 33 and can be Since the rotational speed of the DC motor 33 is lowered to a low level, the use efficiency of the electric energy can be improved, and since the drive module 34 drives the DC motor 33 in a stepless shifting manner, the DC motor 33 switches when the rotational speed is switched. The sound is relatively small, 12 200837313 and even if the three-way valve is omitted, the ice water or hot water output from the water supply main unit 4 is led back, because the driving module 34 can make the DC motor magic speed drop to a low level, Further, the flow rate of the cold air or the hot air can be made low to almost no influence on the temperature in the room, so that the object of the present invention can be achieved. However, the above is only the preferred embodiment of the present invention. The scope of the invention (4) can be limited thereto, that is, the simple equivalent changes and modifications made by the scope of the patent and the description of the invention are still within the scope of the patent of the invention. 1 is a schematic view showing the connection relationship between a blower and a water supply host of a conventional central air conditioning system; FIG. 2 is a rotational speed diagram illustrating that an AC motor of the blower is switched between two speeds; 3疋图图, illustrating the connection relationship between the air blower of the present invention and a water supply host; FIG. 4 is a rotational speed diagram illustrating the constant current motor of the air blower of the present invention switching the rotational speed in a stepless shifting manner; FIG. A flow chart of driving the DC motor by a driving module; and FIG. 6 is a flow chart of driving the DC motor in the U shape corresponding to the automatic wind speed of the driving module of the present invention. 13 200837313 [Explanation of main component symbols] 3 * ¥ ...* blower 35···""·· Control module 31""* ... fan coil 4.........·Water supply main unit 311...** Inlet 41......... Outlet pipe 312... ...* Outlet «#****«*« Inlet pipe 32... Temperature detection module ^ 1 ««*«***¥« Specific time 3 3... < ...DC motor 21~29..., step 3 4...... *...Drive module 291~297 Step 14