200535387 玖、發明說明： 【發明所屬之技術領域】 本發明係關於一種預防電熱水器空燒之方法，尤指一 種於冷開機時採間歇加熱，藉其溫度變化幅度判斷該熱水 器有無蓄水，藉此避免電熱水器發生空燒之方法。 【先前技術】 白用电熱水器'之基本運作方式係由一進水口取得冷水 並導入熱水器内部，藉由電熱管（Heater)加熱後可開啟 出X 口以取;^熱水’當内部儲水的溫度低於—預設值時 «亥熱水态係可自動開啟電熱管的電源而恢復加熱作業， 此種電，水器-般均會設計有許多安全保護裝置，以確保 電熱水态本身運作之正當及掉 吊及楗t、異⑦之切斷電源，舉例而 =，釋壓閥係最為基本的安全保護裝置，當熱水不斷加熱 導致内部管路的壓力逐漸裎古 — 产 棱回日宁，若不適時排除壓力恐有 亂Ί，該釋塵閥此時便可發揮功效以降低管路塵力。 惟^述大多數的安全伴 、Μ ^ 保4破置均是以電熱水器已處於 運作狀恶之前提而設計，甚 处、 L 夕考1到在電熱水器新機安裝 之k 了此引發的意外狀況， 於裝機完成後，在冷水尚：見的情況即是當安裝人員 導致電埶这Η鲂 進入至熱水器時便開始供電， W , ^ 二乂几狀恶’右未能即時於 現，$熱水器勢必嚴重損毁 佯蠖F晋，於也y '、，、' 一叙熱水器均有過溫度 你口隻衣置，於熱水器有显西 又 時候是當得知，惟在更多 ，無法發揮事先預防之功效。、相當程度的損毀 【發明内容】 200535387 鑑於前述習用技術之缺失，本創作之一目的在提供一 種預防電熱水器空燒之方法，當電熱水器於冷開機之際可 根據溫度上升變化判斷内部有無儲水而避免空燒狀況發生 為達成前述目的，本發明預防電熱水器空燒之方法， 係於欲開始加熱前判斷該電熱水器是否為冷開機，若是， 則以緩慢速度加熱—電熱管並同時監測、溫度上升變化，若 於-單位時間内高於一判斷值係判定為空燒而關閉電熱； 當該電熱水器為冷開機時係利用間歇供電加熱方 令溫度緩慢上升； 工 若於該單位時間内低於—判斷值，係表示内部具 水而判定為非空燒，並改採持續供電以穩定加熱； 當判定為空燒並關閉該電熱管後，係即刻發出一警示 Λ息告知使用者。 ' 【實施方式】 請參閱第一圖所#，為一應用本發明之預防空燒 之電熱水器其結構示意圖’該電熱水器内部係設置有_/蓄 水腔體（10)’其連通有 出口、丄1)及一熱水 2 )，於該蓄水腔體（1 0 )内部係設置有—加 …用之：熱管（Heater) (1 3)，又該電熱管（13) 上方係文凌一溫度感測器（temperature sens〇r)(4 、:藉其測量腔體内部的水溫變化，溫度感測器（1 4)係 連接至一微處理哭（圖中 — ’、 口〇(圖中未不），该微處理器可根據測 200535387 之溫 度數據判斷是否應開啟電熱f ( 1 3 )電源 土 、一圖所示，為本發明預防電熱水器 工70 / /;,L程圖，當電熱水器電源開啟後（步驟工00)， 使用者係進行雷勒ρ 口口 ^ 、 …水叩之操作參數設定（步驟101)，例如 措由溫度設定（步驟丄 、西 /驟1 〇2)功能可設置一加熱臨界值，當水 溫低於此加熱臨界值熱水器將可自行啟動加熱功能。參數 :定完後：透過溫度感測器（丄4)賴電熱水器此刻 服度值it以_安裝於該電熱水器上之顯示器（圖中未示 )顯不出測得之溫度值（步驟1 03)。 月，J述溫度量測值進一步與預設之加熱臨界值相互比較 (步驟104)’若高於或等於該加熱臨界值表示目前内部水 溫夠高而毋須再行加熱，故而關閉該電熱f ( i 3 )(步 驟10 5 )，於一預定間隔時段後係回復至步驟1 〇 3、1 〇 4 ’再度偵測並判斷溫度。 右由溫度感測器（1 4 )量測獲得之溫度值低於前述 預設的加熱值時，所代表的可能狀況包含：！·水溫過低或 2」電：水器恰f嶺成故内部並無蓄水。誠如先前技術所 言，當電熱水器剛裝機完畢而開始供電時，於無供應冷水 的狀况之下將有空燒毀損之虞，為預防此類問題，本 特提出以下作法。 士當溫度感測器所測得之溫度值低於前述預設的加熱值 時’係判斷該電熱水器是否為冷開機（步驟1〇6)，若僅是 單純水溫降低者，則直接開啟電熱管（i 3 )電源（步·= 1 〇7)開始進行加熱作業；反之，若該電熱水器是為冷開機 200535387 ，則微處理器將控先11、，β目日 測溫度上升變化(步：電源供給電熱管⑴）並監 加熱模式之下，供應二第三圖所示，於間歇 中所示，在供電—段時間；3)的電流波形係如圖 此令電埶管（、 後係暫停—短暫時期Τ2 ,如 S ( 1 3 )呈現斷續加熱。 請參考第四圖所示，者带 式運作-段預設的單位時。7 ^ 3 )以間歇加熱方 1 4 )所測得的溫 系匈斷該溫度感測器（ 若是，則斷定電敎二 邦斷值？(步驟1〇9)， 13)之仏電…之内部確有蓄水，故改變電熱管（ 於該判…者=定供電(步驟1〇7)，·反之，低 電熱水器1^ 電熱水器之内部並無蓄水，此時 '、,、。疋处；空燒狀態，將立刻關 電源(步驟U0)，且進一步發出…々、“（13)之 使用者。 s不吼息（步驟111)通知 該電熱水器有無空燒之原理如下：蓄水腔體 介，故、、.=部有儲水的狀態下’液體水係作為熱傳導媒 " 度感測器（14)能準確得知溫度上升的幅产（ 下方曲線所不），反之，在蓄水腔體（丄 部無儲水的情形之下M堇以蓄水腔 #介，甘& k丄υ)作為熱傳導 ……、、、傳導速度較快，故在單位時間内溫度感測器（ 所測得的溫度自然快速超越該判斷 方曲線所示）。 權（如弟四圖上 在尚未判定該電熱水器是否為空燒之前，本發明以 歇加熱方式令電熱水器的溫度不會於短期間内急遽上升曰 7 200535387 猎：確保其加熱安全。否則若改以持 縱使可判斷出空燒狀況，熱水器恐已經有所損/式加熱， 縱上所述，本發明係可提供電熱水 ：、 際一預防空燒之有效方法，、 ' 人冷開機之 水器在尚未# p >、， 3則述技術手段可確保電埶 在6未知毁之丽便能夠準確 ' 水，並適時切斷電埶管電诉^ ±有 '、，、水益内部無儲 。 …曰進付合發明專利要件，裘依法具文提出申請 【圖式簡單說明】 (一 ) 圖式部分 第一 圖 •係應用本發 第二 圖 :係本發明之 第三 圖 :係本發明間i 第四 圖 :係本發明判; (二 ) 元件代表符號 (1 0 )蓄水腔體 (1 1 )冷水入口 (12)熱水出口 (1 3 )電熱管 8200535387 (1) Description of the invention: [Technical field to which the invention belongs] The present invention relates to a method for preventing empty burning of electric water heaters, especially a method of intermittent heating during cold start-up. This is the method to avoid air-burning of electric water heater. [Previous technology] The basic operation mode of the white-use electric water heater is to obtain cold water from a water inlet and introduce it into the water heater. After heating by an electric heater (Heater), the X outlet can be opened for taking; ^ hot water when the internal water is stored When the temperature is lower than the preset value, the hot water state can automatically turn on the power of the electric heating pipe to resume the heating operation. This kind of electricity and water heaters are usually designed with many safety protection devices to ensure the electric hot water state itself. The operation is proper and the power is cut off, and the power is cut off. For example, =, the pressure relief valve is the most basic safety protection device. When the hot water is continuously heated, the pressure of the internal pipeline gradually fades. Ri Ning, if the pressure is not ruled out to cause chaos, the dust release valve can now work to reduce the dust in the pipeline. However, most of the safety companions, M and B 4 are designed based on the fact that the electric water heater is already in operation, and it is caused by L Xikou 1 to the installation of a new electric water heater. In an unexpected situation, after the installation is completed, in cold water: the situation is that when the installer caused the electric power to enter the water heater, it began to supply power. W, ^ Second, the situation is not immediate, The water heater is bound to be seriously damaged. Jin Yu, Yu, y ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,、,,,,, Preventive effect. A considerable degree of damage [Abstract] 200535387 In view of the lack of the aforementioned conventional technology, one of the purposes of this creation is to provide a method to prevent the empty burning of electric water heaters. When the electric water heater is cold-started, it can be judged whether the internal storage is based on the temperature rise. In order to achieve the foregoing object, the method for preventing the empty burning of the electric water heater according to the present invention is to determine whether the electric water heater is cold-started before the heating is started, and if so, to heat the electric heating pipe at a slow speed and monitor at the same time The temperature rise changes. If the value is higher than a judgment value in-unit time, it is determined to be empty and the electric heat is turned off. When the electric water heater is cold started, the temperature is slowly increased by using intermittent power supply. If the unit is in the unit time, The internal value is lower than the judgment value, which means that there is water inside and it is judged to be non-air-burning, and the continuous power supply is used instead to stabilize the heating; when it is determined to be air-burning and the electric heating pipe is closed, a warning is issued immediately to inform the user . '[Embodiment] Please refer to the first figure #, which is a schematic diagram of the structure of an electric water heater for preventing air-burning to which the present invention is applied.' The electric water heater is provided with a _ / water storage cavity (10) 'and an outlet is connected to the electric water heater. , 丄 1) and a hot water 2), inside the water storage cavity (1 0) is provided with-plus: for: Heater (1 3), and the electric heating pipe (13) above the text Ling Yi temperature sensor (temperature sens〇r) (4 ,: by using it to measure the water temperature change inside the cavity, the temperature sensor (14) is connected to a micro processing cry (picture-', 口 〇 (Not shown in the figure), the microprocessor can judge whether the electric heating f (1 3) power source should be turned on according to the measured temperature data of 200535387, as shown in the figure below. Figure, when the electric water heater is turned on (step 00), the user sets the operating parameters of the Rayle ρ mouth ^… 叩 叩 (step 101), for example, the temperature setting (step 丄, west / step 1) 〇2) The function can set a heating threshold. When the water temperature is lower than this heating threshold, the water heater can start heating by itself. Yes. Parameters: After the setting is completed, the temperature value of the electric water heater through the temperature sensor (丄 4) at this moment will not show the measured temperature value on the display (not shown) installed on the electric water heater ( Step 1 03). In the month, the temperature measurement value of J is further compared with the preset heating threshold value (step 104). If the heating threshold value is higher than or equal to the heating threshold value, it means that the current internal water temperature is high enough without heating. Therefore, the electric heating f (i 3) is turned off (step 105), and after a predetermined interval, the steps are returned to steps 103 and 104, and the temperature is detected and judged again. The temperature is detected by the temperature sensor (14) When the temperature value obtained by the measurement is lower than the preset heating value, the possible conditions represented include: • The water temperature is too low or 2 "Electricity: The water device has no water storage inside it. As before, Technically speaking, when the electric water heater starts to supply power immediately after the installation is completed, there may be a risk of burning and destruction under the condition of no cold water supply. To prevent such problems, this special method is proposed below. Shidang temperature sensor When the measured temperature value is lower than the preset heating value, it is judged that the electricity Whether the water heater is cold-started (step 106), if only the temperature of the water is reduced, directly turn on the power of the electric heating pipe (i 3) (step · = 10) to start the heating operation; otherwise, if the electricity The water heater is started cold for 200535387. Then the microprocessor will control the daily temperature rise and temperature changes (step: power supply electric heating tube ⑴) and monitor the heating mode. As shown in the figure, the current waveform during the power supply—for a period of time; 3) is shown in Figure 2. This makes the electric tube (and the rear system pause—a short period of time T2, such as S (1 3)) showing intermittent heating. Please refer to the fourth picture, when the belt is operated-the default unit of the segment. 7 ^ 3) The temperature measured by the intermittent heating method 14) The temperature is measured by the temperature sensor (if yes, determine the value of the electric power? (Step 109), 13) of the electric power ... There is water storage inside, so change the electric heating tube (when the judgment is made ... the power supply (step 107)), otherwise, there is no water storage inside the low electric water heater 1 ^, at this time, ',,,. In the empty-boiled state, the power will be turned off immediately (step U0), and the user of "(13)" will be further issued. S Does not sigh (step 111) The principle of notifying the electric water heater for empty-boil is as follows: The water cavity body medium, so, in the state where there is water storage, the "liquid water system is used as a heat transfer medium" The degree sensor (14) can accurately know the temperature increase (not shown in the lower curve), and vice versa In the case of the water storage cavity (there is no water storage in the crotch, the M. cordata uses the water storage cavity #mediation, Gan & k 丄 υ) as the heat conduction ... ,, the conduction speed is fast, so the temperature in the unit time Sensor (The measured temperature naturally surpasses the judgment square curve quickly). Right (as in the fourth picture, it has not yet been determined whether the electric water heater is Prior to air-burning, the present invention uses an off-heating method to prevent the temperature of the electric water heater from rising sharply in a short period of time. 20052005387 Hunting: ensure that it is safe to heat. Otherwise, if the air-burning condition can be judged by the persistence, the water heater may already have Damaged / type heating. According to the above description, the present invention can provide electric hot water: an effective method for preventing air-burning, “a cold-started water heater has not yet been described.” It can ensure that the electric power can accurately 'water' in 6 unknown ruins, and timely cut off the electric power pipe electric charge ^ ± Yes, there is no storage inside the water benefit.… Said Jinfuhe invention patent requirements, Qiu according to law The text filed an application [Simplified illustration of the drawings] (1) The first drawing of the drawing part is the second drawing of the present application: the third drawing of the present invention: the present invention i The fourth drawing: the present invention judgment; ( B) Symbols of components (1 0) Water storage cavity (1 1) Cold water inlet (12) Hot water outlet (1 3) Electric heating pipe 8