九、發明說明： 【發明所屬之技術領域】 靜係指一種變頻控制方法及其裝置，特別是指-稀 用於冷凍冷藏或空調設備的變頻控制方法及其裝置。 【先前技術】 地球暖化’節省電力以節省二氧化碳排放量是當務之 心、人人節省電力，累積起來就相當可觀，再者，賣尸 便利商店競爭激列，電力的節省也是競爭成敗的重= 素因此在業者急需電力節省設備的情況下 =裝置’成本低，舊有設備也可使用，符合業者： 冷^ίΓΓΓΓ店的魏的項目上’主力是以空調及 、、、/、中冷凍冷藏设備就佔了整體耗電的百分 之以上，而冷;東冷藏設備要翻省能的目標，主力: :乂雙頻為主，其餘的事項，包括除霧控制，除霜控制疋 =的搭配及控制策略也佔了—部份，最有效的—環還是 容量控制法則’也就是在—般的 Γ設計時必須以最惡劣的環境下為基準，所有的 都須超過容量設計，包含魏機的容量也如此，; —又的清况下’並不是在最惡劣的情況下運轉 ，達到最佳容量 比，在適主要是壓縮機轉速與耗電成正 . σ勺里下，迪量控制壓縮機在最低的轉速，如 此在哪提升之下可達到大量省電的目的。 因此對於現存的空調或冷藏系統而言，如何在適合的 1338768 =容量下盡量縮機控制在最低的轉速將是一個相當 種題’職是之故’中請人鑑於習知技術中所蓋生之 =^=财心試驗與研究，並—本細不捨之精神， 出本案._控财法及其裝置」，㈣克服上述系 、.在S知上的各種缺點’以τ為本案之簡要說明。 【發明内容】 量成藏或空調設财壓縮機_速將與耗電 成正比例關係，因此使用者應在能夠滿足Nine, invention description: [Technical field to which the invention pertains] Static system refers to a frequency conversion control method and apparatus thereof, and particularly refers to a frequency conversion control method and apparatus for use in a refrigeration or air conditioning apparatus. [Prior Art] Earth warming 'saving electricity to save carbon dioxide emissions is a priority, everyone saves electricity, and it is quite considerable. In addition, the corpse convenience store is competitive, and the power saving is also the success of the competition. Heavy = prime, therefore, the industry is in urgent need of power saving equipment = device low cost, old equipment can also be used, in line with the industry: cold ^ ΓΓΓΓ ΓΓΓΓ 的 Wei's project on the main force is air conditioning and,,, /, medium Refrigeration and refrigeration equipment accounted for more than 100% of the overall power consumption, and cold; East refrigeration equipment to turn over the goal of energy saving, the main force:: 乂 dual frequency-based, the rest of the matters, including defogging control, defrosting control疋 = the combination and control strategy also accounted for - part, the most effective - ring or capacity control law 'that is, in the general design must be based on the harshest environment, all must exceed the capacity design The capacity of the Wei machine is also the same; - in the case of the clear condition, it is not operated under the worst conditions, and the optimal capacity ratio is achieved. The main reason is that the compressor speed and power consumption are positive. Di-amount control of the compressor at the lowest speed, as under this lift which can achieve a large amount of power. Therefore, for the existing air conditioning or refrigeration system, how to minimize the control at the lowest speed in the appropriate 1338768 = capacity will be a considerable kind of problem, 'the job is the reason', in view of the knowledge of the technology =^=Caixin test and research, and - the spirit of this reluctance, out of the case._Proceedings and its devices", (4) Overcoming the above-mentioned departments, various shortcomings in S knowing that τ is the case A brief description. [Summary of the Invention] Quantitative storage or air-conditioning compressors _ speed will be proportional to power consumption, so users should be able to meet
:’盡量縮機的轉速控制在最低速，如此可大量S y。故本案伽人係構思—觀夠依據制所 _力準值調整輸人至壓縮機的電源的頻率’以 2 的裝置及方法。而且本方法係以運轉率來調^ 根據本發明的構想，提出—種變頻控制方法，其包括 二驟依-壓縮機的一運轉率設定該壓縮機及至少—基發器 之:壓力準值；及依_力準值控__機之作動: 計嘗本Γ月所提供之該種控制方法，更包括步驟 。十π—冷凍冷藏空調設備的一需求容量。 哪 較佳地，本發騎提供之_㈣方法，更包括 。异妨縣齡調設備所具有的贿縮機的該運轉f 較㈣，树賴触之_㈣料 依_神值調整輸入賴縮機之電源之解。括4 一種實施如前述之該種控制方法的裝置。 根據本發明的構想，提出一種變頻控制裝置，其包括 5 1338768 其設於—魏機及至少—蒸發關並與該 ，•接，以偵測該壓縮機及該至少一蒸發器間之一壓 及Γ控制裳置依據該麗力準值之運轉率控制該壓縮機 作動並將該壓力保持在該壓力準值。 車乂佳土也本發明所提供之裝置，其甲該控制裝置更依 據-運轉率計算—需求容量。 心地’本發酬提供之裝置，其巾該壓力準值係依 據。亥而求各量及該壓縮機之一運轉率而決定。 根據本發明的構想，提出一種變頻裝置，其包括一冷 φ =空調設備；及—控麵組，與該树冷藏空調設備 連接，趣麵組依—壓力準值控綱壓賴之作動。 較佳地，本發明所提供之裝置，其中該控制模組更包 射貞測装置，其設於一壓縮機及至少一蒸發器間並 ^兩者顧，以侧該壓縮機及該至少—蒸發器間之一 空制裝置，依據該壓力準值之運轉率控制該壓 ㈣之作動並將該壓力保持在該壓力準值。壓力 運轉率自動調整壓力之高低設定值。這邊所強調 的運轉率·準是以_溫度紐制在所設定的溫度 時轉速愈低則運轉率愈高，但愈省電。 較佳地’本發明所提供之裝置，其中該控制模組更依 據一運轉率計算一需求容量。 較佳地’本發明所提供之裝置，其中該壓 據該需求容量及賴麵之—運解而蚊。 ’、、 本發明具有以下的優點：節能、省成本、新舊 可私用的⑧縮機變頻設備，本土化設計，對賣場最煩惱的 6 1338768 維修線建立與_皆可達成，且本發縣夠在不變更原系 統及原控制箱的情況下增加控制模組，在施工上非常簡 易，在原线下可快速的達到更改的目地，另相較於傳統 變頻控制須裝設多點溫度感測器及複雜的控制组件，本發 明更具有安裝簡易、成本低、一對多的變頻功铲。 x 【實施方式】: 'The speed of the machine is controlled to the lowest speed, so a large amount of S y. Therefore, the gamma system of this case is conceived - a device and method for adjusting the frequency of the power source input to the compressor by 2 according to the system. Moreover, the method is based on the operating rate. According to the concept of the present invention, a variable frequency control method is proposed, which includes setting an operating rate of a second-compressor-compressor to set the pressure of the compressor and at least the base: And according to the _ force quasi-value control __ machine action: Count the control method provided by this month, including steps. Ten π—a required capacity for refrigerated air conditioning equipment. Which is better, the method provided by the present rider includes the method. The operation of the bribe-reducing machine owned by the county-age equipment is more than (4), and the tree is based on the value of the power supply. 4 is a device for carrying out the control method as described above. According to the concept of the present invention, a frequency conversion control device is provided, which includes 5 1338768 which is disposed at the WE-machine and at least-evaporated and connected to detect a pressure between the compressor and the at least one evaporator. The control device controls the operation of the compressor according to the operating rate of the Lili value and maintains the pressure at the pressure level. The vehicle provided by the invention is also provided by the invention, and the control device is further calculated according to the operation rate - the required capacity. In the heart of the device provided by the offer, the pressure value of the towel is based on the basis. It is determined by the amount of each and the operating rate of one of the compressors. According to the concept of the present invention, an inverter device is provided, which comprises a cold φ = air conditioning device; and a control surface group, which is connected with the tree refrigerating air conditioning device, and the fun surface group is operated according to the pressure threshold value control. Preferably, the device provided by the present invention, wherein the control module further comprises a detecting device, which is disposed between a compressor and at least one evaporator, and both sides of the compressor and the at least - An air-making device between the evaporators controls the operation of the pressure (4) according to the operating rate of the pressure value and maintains the pressure at the pressure level. The pressure operation rate automatically adjusts the high and low pressure setting. The operating rate emphasized here is based on the fact that the lower the rotational speed at the set temperature, the higher the operating rate, but the more power is saved. Preferably, the apparatus of the present invention, wherein the control module calculates a required capacity based on an operating rate. Preferably, the apparatus of the present invention, wherein the pressure is based on the required capacity and the surface of the wafer. ',, the invention has the following advantages: energy saving, cost saving, new and old private 8 inverter machine, localized design, the most troublesome 6 1338768 repair line establishment and _ can be achieved, and the hair The county is able to increase the control module without changing the original system and the original control box. It is very simple in construction, and can quickly achieve the changed purpose under the original line. In addition, it must be installed with more temperature than the traditional inverter control. The detector and the complicated control component have the advantages of simple installation, low cost and one-to-many frequency conversion power shovel. x [Embodiment]
本案將可由以下的實施例說明而得到充分瞭解，使得 熟習本，藝之人士可讀以完成之，财案之實施並非可 由下列實施案例而被限制其實施型態。 為便於說明本發明之實施狀況，以下將以便利商店十 常見的開放式冷藏櫃作為冷;東冷藏設備料盡說明本發 明之實施，但請_注意，本㈣之#施_此而僅限於 便利商店中的開放式冷藏櫃，他種冷;東冷藏或空調設備亦 為本發明的應用或實施對象。The present invention will be fully understood by the following examples, so that the person skilled in the art can read it and complete it. The implementation of the financial case is not limited to the implementation form by the following implementation cases. In order to facilitate the description of the implementation of the present invention, the following open refrigerators, which are common in the convenience store, will be used as the cold; the East Refrigeration Equipment will explain the implementation of the present invention, but please note that this (4) is limited to The open refrigerator in the convenience store is cold, and the east refrigeration or air conditioning equipment is also the application or implementation object of the invention.
=說明本發明的核㈣德。由於在冷;東冷藏或空調 設備中壓縮機的轉速將與耗電量成正比例關係，因此使用 者，在能夠滿足需求的狀況下，盡量將壓縮機的轉速控制 在取低速’如此可大量節省t力。因此本發明揭露一種控 制方法’其首先判定冷; 東冷藏空調設備目前的運轉率即， 而運轉能力通常綠錢剌，胁冷輕鍋壓縮機選 用二-個冷輕調系統最初的計算方法，為計算最高負載 容董及假設是在最高溫的惡劣天氣下，來做計算的基礎之 超過容量的可能速度（例如：在電源鮮5紐時， 轉速約為288Gr/min)’所以所選用的壓縮機在平常使用時 7 載’形成耗電的浪費’而且各部件所計算的社 果與所使用的薇牌，材質有很大的誤差，如^ 師或技術者的困擾；因此常以壓 == ==^是過多或過少’進心= 1用”否也有把它解釋為“運解” 方法是依此運轉率的剩餘或不足而 間之壓力控制基準值，並依此壓力基準二= 機的電源的頻率，使壓縮機之轉速達到最低，運轉率趨近 100% ’而仍能使所控_冷;東庫溫度相所設定的目 標，以控制壓縮機轉速的方法及其裝置。在此運轉率係指 所設=之—段時間為分母，除在該段時間内之壓縮機的實 際_運轉時間（即分子，已扣除壓縮機停機的時=貫 ^用流程圖更進—步說明以上揭露的控制方法 圖，為本發明所揭露的控制方法其實施 流私不思圖。第-圖中包括步驟：輸人開放式冷藏植之運 轉壓力、除霜循環時間、除霜時間、壓賴啟動保護時間 等運轉所必須之各種參數u;各櫃魏夠控制在所設定的 溫度範_時’計算·式冷藏櫃壓_運_ 12 ;計算 運轉率13 ;冷藏櫃當時的冷藏能力，係依運轉率的高低而 判定14 ;運轉率低於設定值（例如：轉），表示當時的 冷藏能力補’職高壓力準值b ;如運轉轉於^定值 娜’或大於設定值99%，表示當時的冷藏能力^能不 足，則降低壓力準值16 ;如適當則保持壓力準值丨7 ;及 調整冷藏櫃麵機的電源解以魏魏姆速18。當每 台櫃體的溫度到達後’每台電磁閥都關閉的情況下，：時 運轉的壓縮齡使吸人壓力持續下降，朗某奴壓力之 =t壓縮機停機’根據壓縮機開啟與_的時間從軟體 裏,十算運轉率☆壓縮機的冷藏能力無法滿足需求容量， 則=低力準值，若壓縮機的冷藏能力不但可以滿足需求 谷里還有剩餘，則提高壓力準值，若壓縮機的運轉率恰可 滿足需求容量，保碰力準值，此即上述麵14、】5、16 及^7，而後依壓力準值調整冷藏櫃胸餓的電源頻率以變 動壓縮機轉速，即步驟18。經由實施以上方法，可保持冷 藏櫃的低溫在滿足使用者f求驗況下，仍可使壓縮機的 轉速儘量維持在低速，以節省電能。 以下更進一步說明本發明所揭露的控制方法應用在 實際的冷凍冷藏空調設備上的實施狀況。請參照第二圖， 為本發明揭露的控制裝置組合應用在習知的冷凍冷藏空 凋《又備上的第一實施例示意圖。第二圖中包括壓縮機21、 洛發器22、冷凝器23、膨脹閥26、壓縮機控制器25、壓 力偵測裝置20A及頻率控制裝置20B。其中壓縮機21、 崧發器22、冷凝器23、膨脹閥26、壓縮機控制器25為習 知的冷凍冷藏空調設備中常見的裝置。 在本第一實施例中，壓力偵測裝置20A係於設置壓 蝻機21及蒸發器22間，以偵測壓縮機21及蒸發器22間 之壓力’首先頻率控制裝置20B將依目前使用者所要求的 需求容量判定壓縮機21的運轉率的剩餘或不足，以決定 壓縮機21及蒸發器22間之壓力準值(此部份的控制方法 清參照前述說明），另由於頻率控制裝置20B與壓力偵測 裝置20A間設定有一回授機制’即壓力偵測裴置2〇A將 持續谓__21及蒸發!22間之壓力，若 離決心力準值，則調整輸人_機2】之= 勺頻率而控制壓縮機21的轉速，藉此 ^ 發器㈣之壓力維持在決定_力準值，然彳 ^置20B依此屋力準值調整輸入至魏機的“ ί，藉此紐器22所赵的溫度在可滿足使用者需求容 況Γ仍可使壓賴21 _速儘量_在低速， 卽ii電月b °在本第-實施例中僅有—個蒸發器^。 通常便利商店放式冷藏櫃，有可缺—個冷 櫃使用-個壓縮機’或是多個冷藏櫃使用一個廢縮機，利 用以上所述的方法，無論冷藏櫃的組合是一對一，一對二 或-對多，均可輕易達到降低魔縮機轉速，但冷藏植仍能 保持所需要的低溫。町將更進—步說明—個壓縮機對 應至數個冷藏櫃的狀況。 請參照第三圖，為本發明揭露的控制裝置組合應用在 習知的冷凍冷藏空調設備上的第二實施例示意圖。第三圖 中包括壓縮機21、蒸發器22、冷凝器23、膨脹閥26、壓 縮機控制器25、頻率控制裝置2〇B、壓力偵測裝置2〇A、 展示櫃31、感溫球32、牆33、溫控器34、電磁閥35、室 内IN.及室外Εχ·。其中壓縮機21、蒸發器22'冷凝器23、 膨脹閥26、壓縮機控制器25為習知的冷凍冷藏空調設備 中常見的裝置。第三圖中所揭露的實施狀況，為最典型的 便利商店中冷藏櫃的佈置狀況，幾乎是平常生活中非常常 見的佈置，展示櫃31中可擺設各類冰品、冷飲等。在本 第二實施例中包括複數個蒸發器22。 第二圖中所減的第二實施射係具有複數個基 ，」而每一個蒸發器22的冷媒都用來冷卻—個展示、 ^ W ’複數個蒸發器、22的冷媒在匯集後便進入壓縮機21 二=壓力偵測裝置20A設於複數個蒸發器22匯集後進 入職§機21之前的位置，亦用於伽通縮機21及 22間之聲力’首先頻率控制裝置施將依目前使用者所 要求的需求容量判定_機21的冷藏能力_餘或不 足二以Μ壓賴21及絲器’ 22 .壓力準值(此部份 的控制方法請參照前述說明），另由於頻率控制裝置2〇β 與壓力動懷置說間奴有—回授機制，即壓力偵測裝 置2〇〇將持續偵測壓縮機21及蒸發器22間之壓力，若偵 測所得之壓力偏離決定的壓力準值，則調整輸入壓縮機21' 之電源的頻率而控制壓縮機21的轉速，藉此使得壓縮機 21及蒸發器22間之壓力維持在決定的壓力準值，然後頻 率控制裝置20B依此壓力準值調整輸入至壓縮機的電源 的頻率，藉此複數個蒸發器22所產生的溫度在可滿足使 用者需求的狀況下，仍可使壓縮機21的轉速儘量維持在 低速，以節省電能。各個櫃體的溫度是由各櫃體獨立的溫 度控制器所控制’各自櫃體溫度如未達到設定溫度則打開 各自的電磁閥35，溫度到達則關閉電磁閥35，各櫃體的 溫度是靠各自的溫控器控制電磁閥所致，必須控制在所設 定的溫度範圍内，所述之電磁閥打開或關閉意謂冷媒流過 或停止流過之意。 而實施本發明的控制方法後，其節能效果如下所述。 請參照第四圖’為採用本發明所揭露的控制方法的冷凍冷 1338768 藏空調設備其用電量分析示意圖。第四圖中的數據為 明實際應用於賣場之測試結果，第四圖令的狀況為Y發 三日中午前，該賣場的冷藏櫃均設有本發明所述的控= 置’但在十二曰中午後，該買場的冷藏櫃撤除了本發明^ 述的控制裝置，恢復原本未設有節能裝置的狀能，由 圖中可看出，其日用電量數據在十三日中午前可: 7〇kWh左右，但自十三日中午撤 後’其日用電量數據上升至將至9〇kWh左右，由第^圖 中可顯著的看出本發明的變頻控制方法及其裝置應用 實際冷凍冷藏空調設備中的節能效率。 〜 在别述的第-及第二實施例當中，基本上使用者可以 70全無須變更原冷凍空調系統，也就是在第一及第二 的壓縮機21、蒸發器22、冷凝器23、膨脹閥％及壓 控制器25均為習知冷康冷藏空調設備中必備的元件，使 用者只須在此等f知的冷;東冷藏空調設備上加裝壓 測裝置2GA及頻率控難置細，即可成功實施本發明、 而壓力制裝置肅及辭控繼置細又可整 姻空制模組’故使用者可以在不變動原系統的狀況;加設 ^述控制模組’施1上相當簡易且迅速，亦相當節省成 再加上裝⑺上述的控制模組後，更可大 的消耗電源。 總結而言’本發明至少具有如下的優點：⑻改善一 ^冷束系統’各別膨脹閥可以控制冷媒流量、但過献度 壓縮機容量控制之訊息；(b)改善單獨少數幾個 M體啟動時’可能_件和冷媒流量差異，而造成過熱度 12 1338768 ^變化；（c)本發明利用壓力控制，由膨脹閥至塵縮機吸入 端有時間的延遲’改善反應的靈敏度；⑹细壓力波的傳 遞穩紐遠大於溫度傳遞、而在定量冷媒充填時，負載越 大’則高壓越高’低廢越低，亦既愿縮比增大，反之則合 ===_細糖舰_統具^= Describe the core (4) of the present invention. Since the speed of the compressor in the cold or east refrigeration or air conditioning equipment will be proportional to the power consumption, the user can control the speed of the compressor to take the low speed as much as possible under the condition that the demand can be met. t force. Therefore, the present invention discloses a control method that first determines the cold; the current operating rate of the east refrigerating air-conditioning equipment is that the operating capacity is usually green money, and the first calculation method of the two-cold light-lighting system is adopted for the cold-cooled light cooker compressor. In order to calculate the highest load capacity and the assumption is that in the worst weather in the highest temperature, the calculation basis is based on the possible speed of the capacity (for example: when the power supply is fresh 5, the speed is about 288Gr/min) When the compressor is used normally, it will be 'was a waste of power consumption' and the calculated fruit of each component and the used Wei brand will have a large error, such as the trouble of the technician or the technician; == ==^ is too much or too little 'into the heart = 1 use' No. It is also interpreted as "operation solution" method is based on the remaining or insufficient operating rate of the pressure control reference value, and according to this pressure benchmark two = The frequency of the power supply of the machine, the speed of the compressor is the lowest, the operating rate is close to 100%', and the method of controlling the compressor speed can still be controlled by the target set by the temperature of the east bank temperature phase. Operating rate Means that the set time is the denominator, except for the actual _ running time of the compressor during that period of time (ie, the numerator, when the compressor has been deactivated = the flow chart is further advanced) The control method diagram of the present invention is a private control method for the control method disclosed in the present invention. The first diagram includes the steps: the operating pressure of the open refrigerated plant, the defrost cycle time, the defrost time, and the pressure reduction start. Various parameters necessary for the operation of protection time, etc.; each cabinet Wei is controlled in the set temperature range _ 'calculation · type refrigerator pressure _ transport _ 12; calculate the operation rate 13; the refrigerating capacity of the refrigerator at that time, The operation rate is determined by 14; the operation rate is lower than the set value (for example, turn), indicating that the refrigerating capacity at that time is the 'high pressure value b'; if the operation is changed to the constant value of ' or greater than the set value of 99%, Indicates that the refrigeration capacity at that time is insufficient, then lower the pressure value of 16; if appropriate, maintain the pressure value 丨7; and adjust the power supply of the refrigerator to the Weiweim speed 18. When the temperature of each cabinet reaches After 'each solenoid valve is closed : The compression age of the operation keeps the suction pressure continuously decreasing, the pressure of the langu slave = the compressor stop. 'According to the time when the compressor is turned on and _ from the software, the operating rate is ten. ☆ The refrigeration capacity of the compressor cannot meet the demand capacity. , then = low force value, if the refrigeration capacity of the compressor can not only meet the demand, there is still surplus, then increase the pressure value, if the compressor operating rate can meet the demand capacity, the value of the collision force, this is The above-mentioned faces 14, 5, 16 and ^7, and then adjust the power frequency of the refrigerator to be hungry according to the pressure value to change the compressor speed, that is, step 18. By implementing the above method, the low temperature of the refrigerator can be maintained to satisfy the user. Under the condition of test, the rotation speed of the compressor can be maintained as low as possible to save electric energy. The implementation of the control method disclosed in the present invention applied to an actual refrigerating and air-conditioning apparatus will be further described below. Referring to the second figure, a schematic diagram of a first embodiment of a conventional combination of the control device disclosed in the prior art is described. The second figure includes a compressor 21, a hair extender 22, a condenser 23, an expansion valve 26, a compressor controller 25, a pressure detecting device 20A, and a frequency control device 20B. Among them, the compressor 21, the hair damper 22, the condenser 23, the expansion valve 26, and the compressor controller 25 are common devices in conventional refrigerating and air-conditioning equipment. In the first embodiment, the pressure detecting device 20A is disposed between the compressor 21 and the evaporator 22 to detect the pressure between the compressor 21 and the evaporator 22. First, the frequency control device 20B will be based on the current user. The required capacity determines the remaining or insufficient operation rate of the compressor 21 to determine the pressure value between the compressor 21 and the evaporator 22 (the control method of this part is as described above), and the frequency control device 20B A feedback mechanism is set up between the pressure detecting device 20A, that is, the pressure detecting device 2〇A will continue to be the pressure between the __21 and the evaporation! 22, and if the determination is determined, the input _ machine 2 is adjusted] = the frequency of the spoon to control the speed of the compressor 21, whereby the pressure of the actuator (4) is maintained at the determined value, and then the 20B is adjusted according to the value of the house to the "we" of the Wei machine. The temperature of the button 22 of the new device 22 can satisfy the user's demand condition, and can still make the pressure of 21 _ speed as much as possible _ at low speed, 卽 ii electric moon b ° in this embodiment - only one evaporator ^. Usually convenient store freezer, there is a shortage - a freezer to use - a compressor 'or more The refrigerated cabinet uses a waste reduction machine. With the above-mentioned method, no matter whether the combination of the refrigerating cabinet is one-to-one, one-to-two or-to-multiple, the speed of the retracting machine can be easily reduced, but the refrigerated plant can still maintain the position. The low temperature required. The town will be further improved. The description of the compressor corresponds to the condition of several refrigerators. Referring to the third figure, the combination of the control device disclosed in the present invention is applied to the conventional refrigerating and air-conditioning equipment. The second embodiment includes a compressor 21, an evaporator 22, a condenser 23, an expansion valve 26, a compressor controller 25, a frequency control device 2B, a pressure detecting device 2A, and a display cabinet 31. , a temperature sensing ball 32, a wall 33, a thermostat 34, a solenoid valve 35, an indoor IN., and an outdoor unit. The compressor 21, the evaporator 22' condenser 23, the expansion valve 26, and the compressor controller 25 are A device commonly found in refrigerated and refrigerated air-conditioning equipment. The implementation situation disclosed in the third figure is the arrangement of the refrigerated cabinet in the most typical convenience store, which is almost a very common arrangement in ordinary life, and can be arranged in the display cabinet 31. Various types of ice, cold In the second embodiment, a plurality of evaporators 22 are included. The second embodiment of the second embodiment has a plurality of bases, and the refrigerant of each of the evaporators 22 is used for cooling. ^ W 'The plurality of evaporators, 22 of the refrigerant enters the compressor 21 after being collected. The pressure detecting device 20A is disposed at a position before the plurality of evaporators 22 are collected and enters the position before the machine 21, and is also used for the gamma reduction machine. Sound of 21 and 22 'The first frequency control device will be judged according to the demand capacity required by the current user. _ The refrigerating capacity of the machine 21 _ surplus or less than two to pressure the 21 and the wire '22. Pressure value ( For the control method of this part, please refer to the above description), and because the frequency control device 2〇β and the pressure movements have a slave-return mechanism, the pressure detecting device 2〇〇 will continuously detect the compressor 21 and The pressure between the evaporators 22, if the detected pressure deviates from the determined pressure level, adjusts the frequency of the power supplied to the compressor 21' to control the rotation speed of the compressor 21, thereby causing the compressor 21 and the evaporator 22 to pass between The pressure is maintained at the determined pressure level, The frequency control device 20B adjusts the frequency of the power source input to the compressor according to the pressure level value, whereby the temperature generated by the plurality of evaporators 22 can maintain the rotation speed of the compressor 21 as much as possible while satisfying the user's demand. At low speeds to save energy. The temperature of each cabinet is controlled by the independent temperature controller of each cabinet. 'The respective cabinet temperature will open the respective solenoid valve 35 if the temperature is not reached. When the temperature reaches, the solenoid valve 35 will be closed. The temperature of each cabinet depends on the temperature. The respective thermostat controls the solenoid valve and must be controlled within the set temperature range. The opening or closing of the solenoid valve means that the refrigerant flows or stops flowing. After the control method of the present invention is implemented, the energy saving effect is as follows. Please refer to the fourth figure' for the analysis of the electricity consumption of the cold-cooled 1338768 air-conditioning equipment using the control method disclosed in the present invention. The data in the fourth figure is the test result that is actually applied to the store. The situation of the fourth figure is Y noon three days before noon, and the refrigerator of the store is provided with the control of the present invention. After noon, the purchaser's refrigerated cabinet removed the control device of the present invention and restored the energy capacity of the original energy-saving device. As can be seen from the figure, the daily electricity consumption data is in the thirteenth day. Before noon: 7〇 kWh or so, but since the withdrawal at noon on the 13th, its daily electricity consumption data has risen to about 9〇kWh. The inverter control method of the present invention can be clearly seen from the figure The device applies energy saving efficiency in actual refrigerated and air-conditioned equipment. ~ In the first and second embodiments, the user can basically change the original refrigerating and air-conditioning system 70, that is, the first and second compressors 21, the evaporator 22, the condenser 23, and the expansion. Valve % and pressure controller 25 are all necessary components in the conventional cold-cooled air-conditioning equipment. Users only need to know the cold in this; the eastern refrigeration equipment is equipped with a pressure measuring device 2GA and the frequency control is difficult to set. The invention can be successfully implemented, and the pressure system can be used to eliminate the resignation. The user can change the condition of the original system without adding the control system. It is quite simple and quick, and it is quite cost-effective. After adding the above control module (7), it can consume more power. In summary, the present invention has at least the following advantages: (8) improving the cooling system of the 'cooling beam system', the respective expansion valves can control the flow of the refrigerant, but the message of the capacity control of the over-committed compressor; (b) improving a few M bodies separately At startup, the difference between the 'may' and the refrigerant flow rate causes a superheat of 12 1338768 ^; (c) the invention utilizes pressure control, and there is a time delay from the expansion valve to the suction end of the dust-reducing machine to improve the sensitivity of the reaction; (6) The pressure wave is stable and the transfer is much larger than the temperature transfer. When the quantitative refrigerant is filled, the load is larger. 'The higher the high pressure, the lower the low waste, and the more the ratio is increased. Otherwise, the combination is ===_ _General ^
At惟以上所述者，僅為本發明之最佳實施例而已，當不 限定本發明所實施之範圍。即大凡 之均嫩酬，皆糊於本“= i之關内，謹請貴審查委㈣鑑，並祈惠准，是所至 【圖式簡單說明】 ㈣所揭露的控财法其實施流程示音圖. 第-圖係為本發明揭露的控 :圖， ;東冷藏空調設備上的第-實施例示^應用在白知的冷 凌丄二=,==合應_知的冷 二圖方法的冷來冷藏空 【主要元件符號說明】 11 •輸入開放式冷藏櫃之 間、除霜時間、壓嗜 1力、除霜循環時 :依照所設定壓C保護時間等設定 &刀值什昇壓縮機的運轉率 12 1338768 1 3 :運轉率的計算得出數值 Μ :判定運轉率 1 5 :運轉率低於設定值則提高壓力控制基準值 1 6 :運轉率等於設定值則降低壓力控制基準值 1 7 :運轉率適當則保持壓力控制基準值 1 8 :調整冷藏櫃壓縮機的電源頻率以變動壓縮機 速 21 :壓縮機 23 :冷凝器 2 5 :壓縮機控制器 20Α :壓力偵測裝置 3 1 :展示櫃 33 :牆 3 5 :電磁閥 ΕΧ.:室外 22 :蒸發器 26 :膨脹閥 20Β ·頻率控制裝置 32 :感溫球 34 :溫控器 IN·:室内The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited. That is to say, the average reward is always in the "= i", I would like to ask your review committee (four) to review, and pray for the right, is the [simplified description of the schema] (four) the implementation of the control law The first diagram is the control disclosed in the present invention: Fig.; The first embodiment of the east refrigerating air-conditioning apparatus is shown in the application of the cold-blooded =2 of the Baizhi, ===合合_知的冷二图Method of cold to refrigerate empty [Main component symbol description] 11 • Input between open refrigerators, defrost time, pressure 1 force, defrost cycle: set according to the set pressure C protection time, etc. Operation rate of the liter compressor 12 1338768 1 3 : Calculation of the operation rate 得出 : Determination of the operation rate 1 5 : The operation rate is lower than the set value, the pressure control reference value is increased. 1 6 : The operation rate is equal to the set value, the pressure control is reduced. Reference value 1 7 : Maintain the pressure control reference value when the operation rate is appropriate. 1 8 : Adjust the power supply frequency of the refrigerator compressor to change the compressor speed 21 : Compressor 23 : Condenser 2 5 : Compressor controller 20 Α : Pressure detection Device 3 1 : Display cabinet 33 : Wall 3 5 : Solenoid valve ΕΧ.: Outdoor 22 : Evaporator 26 :Expansion valve 20Β ·Frequency control device 32 : Temperature sensor 34 : Thermostat IN·: Indoor
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