201237337 六、發明說明： 【發明所屬之技術領域】 本發明係有關一種分段加熱式電熱水器之結構及其加 熱方法，尤指一種能預先加熱及儲存溫水在儲水裝置，並 在出水時再瞬間加熱成南溫熱水的分段加熱式電熱水裔。 【先前技術】 傳統的電熱水器是採用電能轉換成熱能的技術原理進 行加熱，將冷水加熱成為熱水，作為人們生活所需的熱水 。根據產業的現況’它們的型式主要分為瞬間加熱式電熱 水器以及儲熱式電熱水器兩大類，兩者的加熱方式有很大 的不同。 瞬間加熱式電熱水器沒有設置儲水桶，它是將冷水管 連接到電熱水器，當使用者開啟水龍頭時，使冷水流通過 電熱水器，同時啟動電熱水器進行加熱，藉此讓使用者取 得熱水。但是瞬間加熱式電熱水器必需能在短時間内將冷 水加熱到額定的溫度，因此瞬間耗電量非常大（最大約 11000瓦），即使如此，還是要將水量調小，才能產生足夠 溫的熱水，因此實際使用上有許多缺撼，例如不能恆溫出 水、不能同時安裝兩部以上的電熱水器（容易跳電）、出水 斷斷續續及耗電量非常大等。 而儲熱式電熱水器的結構則實有一個儲水桶，在儲水 桶内設置有電加熱器，能夠在儲水桶内先將冷水加熱到攝 氏75°c以上儲存，以備使用者從水龍頭開啟時，使熱水混 合水龍頭的冷水，同時使冷水管路的冷水補充到儲水桶内 201237337 ’用以調整溫度及增加水量，如此就能長時間且大量的供 應一般人能適應的熱水（約4〇°C)，因此習知的儲熱式電熱 水器通常具有耗電量相對較小及水量及水溫穩定的優點。 然而’根據姆潘巴效應（Mpemba effect)，熱水與冷 水在相同條件之下’溫度高的熱水降溫速度始終快于溫度 低的水’因此習知的儲熱式電熱水器預先將冷水加熱到攝 氏75C以上並保存在儲水桶内，其降溫的速度將比溫水更 快，例如每小時降溫U25〜2。(；，24小時總降溫達到 48°C，因而必需設定成頻繁地啟動電加熱器，使水溫保持 在75°C以上，如此累積下來也非常浪費能源。 ”、 再者，習知的儲熱式電熱水器為了提供足夠的熱水， 其内容量通常實施為120公升（L)，根據熱量公式h^'m7xSx △ T，因此要將12〇公升（l)的冷水加熱到75°c，將會耗用 更多的能源。由此可見，如果能縮小儲熱式電熱水器的内 容量，並控制儲水的溫度不要達到75〇c，同時採用其他方 式補正儲水量較小及儲水溫度較低的問題，將能達到 節省能源（省電）效果。 … 【發明内容】 本發明主要目的在提供一種分段加熱式電熱水器之結 構及其加熱方法，其主要包含一儲水裝置、一儲執電熱J 置及一即熱電熱裝置，並將儲水裝置内的水加熱到 45°C之間儲存，藉此防止儲水溫度過高而發生的n产 過快、容易積垢及内壓過大的問題，可以避免頻繁二啟^ 儲熱電熱裝置及清洗儲水裝置，同時避免内壓過大而容易 損壞；再者，將儲水裝置的内容量限制在1〇〇公升（L^避 201237337 熱及維持儲水裝置内的水溫，等待 〜^ ί 即熱電熱裝置瞬間加熱，藉此達成 =、谷$料、增長使料命、熱水供應量大及供 水穩定等功效。 里八久仏 為達上述目#本發明分段力口熱式電熱水器之結構及 八加熱方法之實施内容係包含··一儲水裝置，其具有一用 =儲存水的儲水膽，在_水膽選定㈣合有—冷水進水 官及-熱水出水管，該冷水進水管及該熱水出水管分別連 ^到該儲水膽内儲熱電熱裝置’其結合在該儲水膽内 4。》亥儲熱電熱裝置設定將該儲水膽内的水加熱到％〜 45〇C之間；一即熱電熱裝置，其連接在該熱水出水管，用 於使該熱水出水管流通過該即熱電熱農置的水再瞬間加熱 控制器，其分別電性連接於該儲熱電熱裝置及該即熱 電熱裝置；以及’當該儲熱電熱震置啟動時，該即熱電熱 ，置停止，當該即熱電熱裝置啟動時’該儲熱電熱裝置則' 如止，而且該控制器能根據該熱水出水管内的水溫，每隔 —段時間改變供應給該即熱電熱裝置的電流，以控制該即 熱電熱裝置的功率，使該熱水出水管恆溫出水。 依上述實施内容所述分段加熱式電熱水器之結構及其 =熱方法，其中，該儲水裝置包含一排污水管該排污^ 管連通到該儲水膽内。 依上述實施内容所述分段加熱式電熱水器之結構及其 加熱方法，其中，該儲水膽的内容量為1〇〇公升或1〇〇八二 以下。 Α开 依上述實施内容所述分段加熱式電熱水器之結構及其 201237337 加熱方法，其中，該儲水膽的外壁結合有防止熱散失的隔 熱層。 依上述實施内容所述分段加熱式電熱水器之結構及其 加熱方法，其中，更包含有一第一水溫感應器，該第一水 溫感應器結合在該儲水膽内，並電性連接到該控制器。 依上述實施内容所述分段加熱式電熱水器之結構及其 加熱方法，其中，更包含有一第二水溫感應器，該第二水 溫感應器結合在該熱水出水管，並電性連接到該控制器。 依上述實施内容所述分段加熱式電熱水器之結構及其 加熱方法，其中，更包含一水流傳感器，該水流傳感器設 置在該熱水出水管，並電性連接到該控制器。 本發明基於姆潘巴效應（Mpemba effect)及比熱關係的 原理，顯示水與環境的溫差越小則降溫速度越慢，而且介 於23°C至46°C之間所需升溫熱量相對較低，因此藉由本發 明分段加熱式電熱水器之結構及其加熱方法設計，先利用 該儲熱電熱裝置將100公升（L)的冷水加熱到30°C至451 之間，並儲存在儲水裝置的儲水膽之中，其加熱及保溫時 可達成相對省電的功效，也能避免高溫導致水垢（碳酸鈣 等）累積，而且能避免儲水膽内部壓力過大。當使用者取 用熱水時，再利用該即熱電熱裝置的將熱水出水管中的溫 水瞬間再升溫15°C以上，提供給使用者混合冷水，藉此將 能夠達成節能省電、容易保養、增長使用壽命、熱水供應 量大、供水穩定等功效。 【實施方式】 茲依附圖實施例將本發明之結構特徵及其他之作用、 201237337 目的詳細說明如下： 如第一圖及第二圖所示，本發明分段加熱式電熱水器 之結構及其加熱方法，其較佳的實施例主要包含一儲水裝 置1、一儲熱電熱裝置2及一即熱電熱裝置3，其中： s亥儲水裝置1具有一用於儲存水的儲水膽n，在儲水 膽11選定側結合有一冷水進水管12、一熱水出水管13及一 排污水管14,使冷水進水管12、熱水出水管13及排污水管 14分別連通到該儲水膽丨丨内，如此可以透過冷水進水管 連接於建築物的冷水管路，熱水出水管13連接於建 熱水管路，而排污水管14用於將儲水膽u内的水垢排出。' 儲熱電熱裝置2係通電後將電能轉換成熱能的發熱裝置， 係其結合在儲水膽11内部，用以預先加熱儲水膽丨丨内的冷 水，使水溫達到30°c至451之間。該即熱電熱裝置3亦係 通電後將電能轉換成熱能的發熱裝置，其連接在熱水出水 管13，用於使熱水出水管13内流通過即熱電熱裝置3，並 透過即熱電熱裝f 3將流通過的水再瞬間加熱，達到使用 者設定的溫度（例如65。〇。該控制器4係結合在儲水裝置 1的選定側，並分別電性連接於儲熱電熱裝置2及即熱電 熱裝置3。藉此，設定當儲熱電熱裝置2啟動發熱時，即 ' 熱電熱裝置3停止發熱，當即熱電熱裝置3啟動發熱時， 儲熱電熱裝置2則停止發熱，使本發明分段加熱式電熱水 器的用電量不會逾越一般家庭電線的限制，而且設定控制 器4能根據熱水出水管13内的水溫，每隔一段時間改變供 應給即熱電熱裝置3的電流，以控制即熱電熱裝置3的功 率’使熱水出水管13能夠恆溫出水。 201237337 如第一圖所示’本發明該儲水膽11的内容量係實施為 =〇公升或100公升以下，如此根據熱量公式H=MxSxAT可 付知’本發明比起習知12〇公升的儲熱式電熱水器更為省電 而且成避免儲存過多的熱水，但熱水持續降溫所造成的 能源浪費。再者，本發明該儲水膽11的外壁可以結合有防 止熱散失的隔熱層15，如此能夠減緩熱水降溫的速度。 如第一圖所示，本發明較佳的實施例更包含一第一水 溫感應器5 ’該第一水溫感應器5係結合在該儲水膽^内 ’並電性連接到控制器4 ’透過該第-水溫感應器5感應 儲水膽11内的水溫，俾回饋一訊息給控制器4，進一步控 制儲熱電熱裝置2啟動或停止，用以將儲水膽丨丨内的水溫 控制在30°C至45°C之間。 如第一圖所示’本發明較佳的實施例更包含一第二水 脈感應器6，5亥第一水溫感應器6係結合在熱水出水管13 的選定，並電性連接到控制器4，透過該第二水溫感應器 6感應熱水出水管13内的水溫，俾回饋一訊息給控制器4 ，進一步調整及控制提供給即熱電熱裝置3的電流，使熱 水出水管13内的水溫達到使用者設定的溫度，並達到恆溫 效果。 再如第一圖所示，本發明較佳的實施例更包含一水流 傳感器7，該水流傳感器7設置在該熱水出水管13，並電 性連接到該控制器4，透過水流傳感器7偵側熱水出水管 13内的水流量，回饋水流量訊息給控制器4，使控制器4 隨時調整及控制提供給即熱電熱裝置3的電流，以達到恆 溫效果。 201237337 藉上述之儲水裝置1、儲熱電熱裝置2及即熱電熱裝 置3結構特徵、組合關係及加熱方法，如第三圖所示，可 由冷水進水管12補充冷水進入儲水膽η内達五分之四的高 度，並啟動儲熱電熱裝置2，使儲熱電熱裝置2對儲水膽 11内的冷水進行加熱，將冷水加熱到攝氏30。〇至45。〇之間 ’在本發明當中可以加熱到預設的3〇t、35°c、4〇t或 45 C，並將溫水儲存在儲水膽η之中，利用隔熱層15達成 防止熱散失的保溫功效。本發明儲熱電熱器裝置2在這段 加熱過程當中，基於前述的姆潘巴效應（Mpembaeffect)及 比熱關係，其將1〇〇公升（L)升溫到3〇°c至45°C之後的降溫 速度較，因此在保溫過程中能減少啟動儲熱電熱裝置2 的次數，而且加熱到設定溫度所耗用的能量較少，因此可 達到節省電能的功效。又，因為本發明儲水膽丨丨内的水溫 只介於30 C至45。(：之間，能避免高溫造成的水垢（碳酸鈣 等）累積，而且能避免儲水膽内部壓力過大，因此可達到 容易保養及增長使用壽命等功效。 再如第二圖所示，當使用者需要取用熱水時，本發明 • 儲水膽11内的溫水將從熱水出水管13流出，同時從冷水進 水管12再補充冷水進入儲水膽丨丨，使儲水膽u内的水量充 '·' 足而水溫略降，如此就足以供應一般淋浴所需。而從熱水 出水官13流出的溫水將經過即熱電熱裝置3及第二水溫感 應器6，溫水若高於1.6L/min時，將由控制器4自動控制 對即熱電熱裝置3供電，使即熱電熱裝置3將溫水瞬間加 熱15C以上，使水溫維持在一般淋浴所需的;由於這 段加熱過程中，只將攝氏3代至听之間的溫水再加熱攝 201237337 氏15°C以上’因此耗用的電能也較低，同樣能達到節省電 能的功效。 綜上所述’本發明分段加熱式電熱水器之結構及其加 熱方法，達成節能省電、容易保養、增長使用壽命、&水 供應量大、供水穩定等功效，已確具實用性與創作性，其 技術手段之運用亦出於新穎無疑，且功效與設計目的誠然 符合，已稱合理進步至明。為此，依法提出發明專利申請 ，惟懇请鈞局惠予詳審，並賜准專利為禱，至感德便。 【圖式簡單說明】 第一圖為本發明較佳實施例之組合立體示意圖。 第二圖為本發明較佳實施例之組合剖面示意圖。 第三圖為本發明較佳實施例之應用狀態示意圖。 【主要元件符號說明】 1 儲水裝置 11 儲水膽 12 冷水進水管 13 熱水出水管 14 排污水管 15 隔熱層 2 儲熱電熱裝置 3 即熱電熱裝置 4 控制器 5 第一水溫感應器 6 第一水溫感應器 7 水流傳感器201237337 VI. Description of the Invention: [Technical Field] The present invention relates to a structure of a segmented heating type electric water heater and a heating method thereof, and more particularly to a method capable of preheating and storing warm water in a water storage device, and when discharging water It is heated in sections and heated into a section of heated electric hot water. [Prior Art] The conventional electric water heater is heated by the technical principle of converting electric energy into heat, and the cold water is heated into hot water as the hot water required for people's lives. According to the current situation of the industry, their types are mainly divided into two types: instant heating type electric water heaters and heat storage type electric water heaters. The heating methods of the two are very different. The instant heating electric water heater does not have a water storage tank. It connects the cold water pipe to the electric water heater. When the user turns on the water tap, the cold water flows through the electric water heater, and the electric water heater is started to heat up, so that the user can obtain the hot water. However, the instant heating electric water heater must be able to heat the cold water to the rated temperature in a short time, so the instantaneous power consumption is very large (up to about 11,000 watts). Even so, the water volume should be reduced to generate sufficient temperature. Water, so there are many defects in actual use, such as not being able to thermostat water, not being able to install more than two electric water heaters at the same time (easy to jump), intermittent water discharge and very high power consumption. The structure of the heat storage electric water heater has a water storage tank, and an electric heater is arranged in the water storage tank, and the cold water can be heated in the water storage tank to be stored above 75 ° C for the user to open from the faucet. The hot water is mixed with the cold water of the faucet, and the cold water of the cold water pipe is replenished into the water storage tank 201237337 'To adjust the temperature and increase the water volume, so that the hot water can be adapted to a large amount of time for a long time and a large amount of supply (about 4 〇) °C), therefore, conventional heat storage electric water heaters generally have the advantages of relatively low power consumption and stable water and water temperature. However, according to the Mpemba effect, hot water and cold water are under the same conditions. 'High temperature hot water is always faster than low temperature water'. Therefore, conventional heat storage electric water heaters preheat cold water. Above 75C Celsius and stored in the water tank, it will cool faster than warm water, such as U25~2 per hour. (;, 24 hours total cooling reached 48 ° C, so it must be set to start the electric heater frequently, so that the water temperature is maintained above 75 ° C, so accumulated is also very wasteful of energy.", Furthermore, the conventional storage In order to provide sufficient hot water, the thermal electric water heater usually has a volume of 120 liters (L). According to the heat formula h^'m7xSx △ T, it is necessary to heat 12 liters (l) of cold water to 75 ° C. It will consume more energy. It can be seen that if the content of the thermal storage electric water heater can be reduced, and the temperature of the stored water should not be controlled to 75 〇c, the water storage capacity and the storage temperature should be corrected by other means. The lower the problem, the energy saving (power saving) effect can be achieved. [ SUMMARY OF THE INVENTION The main object of the present invention is to provide a structure of a segment heating electric water heater and a heating method thereof, which mainly comprise a water storage device, The storage and heating J is placed in a thermoelectric heating device, and the water in the water storage device is heated to 45 ° C to store, thereby preventing the storage temperature from being too high and the production of n is too fast, easy to accumulate and internal Over pressure, you can Avoid frequent two-heat storage and electric heating devices and clean water storage devices, while avoiding excessive internal pressure and easy to damage; in addition, limit the content of water storage devices to 1 liter (L^ avoid 201237337 heat and maintain water storage) The temperature of the water in the device is waiting for ~^ ί, that is, the thermoelectric heating device is heated instantaneously, thereby achieving the effects of =, grain, growth, fate, large amount of hot water supply, and stable water supply. The structure of the segmented force electric water heater of the present invention and the implementation of the eight heating method include: a water storage device having a water storage tank for storing water, and selecting (four) in the water bladder - The cold water inlet water and the hot water outlet pipe, the cold water inlet pipe and the hot water outlet pipe are respectively connected to the storage water tank, and the heat storage and heating device is combined in the water storage tank. 4 The device is configured to heat the water in the water storage tank to between % and 45 〇C; a thermoelectric heating device connected to the hot water outlet pipe for passing the hot water outlet pipe through the thermoelectric farm The set water then heats the controller in an instant, which is electrically connected to the heat storage a thermal device and the thermoelectric device; and 'when the thermal shock is activated, the thermoelectric heat is stopped, and when the thermoelectric device is activated, the thermal storage device is stopped, and the The controller can change the current supplied to the thermoelectric heating device according to the water temperature in the hot water outlet pipe to control the power of the thermoelectric heating device, so that the hot water outlet pipe is thermostatically discharged. The structure of the segmented heating type electric water heater and the heat method thereof, wherein the water storage device comprises a row of sewage pipes connected to the water storage tank. The segment heating type according to the above implementation content The structure of the electric water heater and the heating method thereof, wherein the content of the water storage tank is 1 liter or less or less than 1.82. The structure of the sectional heating electric water heater according to the above implementation content and its 201237337 A heating method in which an outer wall of the water storage bladder is combined with a heat insulating layer for preventing heat loss. The structure of the segmented heating type electric water heater and the heating method thereof according to the above embodiments, further comprising a first water temperature sensor, the first water temperature sensor being integrated in the water storage tank and electrically connected Go to the controller. The structure of the segmented heating type electric water heater and the heating method thereof according to the above embodiments, further comprising a second water temperature sensor, the second water temperature sensor being coupled to the hot water outlet pipe and electrically connected Go to the controller. The structure of the segmented heating type electric water heater and the heating method thereof according to the above embodiments, further comprising a water flow sensor disposed in the hot water outlet pipe and electrically connected to the controller. The invention is based on the principle of the relationship between the Mpemba effect and the specific heat, and shows that the smaller the temperature difference between water and the environment is, the slower the cooling rate is, and the relatively warming heat required between 23 ° C and 46 ° C is relatively low. Therefore, by the structure of the segmented heating electric water heater of the present invention and the heating method thereof, 100 liters (L) of cold water is heated to between 30 ° C and 451 by the heat storage electric heating device, and stored in the water storage device. Among the water storage tanks, it can achieve relative power saving when heating and heat preservation, and can also avoid the accumulation of scale (calcium carbonate, etc.) caused by high temperature, and can avoid excessive pressure inside the water storage tank. When the user takes hot water, the warm water in the hot water outlet pipe of the hot electric heating device is heated again by 15 ° C or more to provide the user with mixed cold water, thereby achieving energy saving and energy saving. Easy maintenance, long service life, large supply of hot water, stable water supply, etc. [Embodiment] The structural features and other functions of the present invention, 201237337, are described in detail below with reference to the accompanying drawings. The structure and heating of the segmented heating electric water heater of the present invention are as shown in the first and second figures. The preferred embodiment of the method comprises a water storage device 1, a heat storage and electric heating device 2, and a thermoelectric heating device 3, wherein: the water storage device 1 has a water storage tank n for storing water. A cold water inlet pipe 12, a hot water outlet pipe 13 and a discharge pipe 14 are combined on the selected side of the storage tank 11, so that the cold water inlet pipe 12, the hot water outlet pipe 13 and the sewage pipe 14 are respectively connected to the water storage cholester. Therefore, the cold water inlet pipe can be connected to the cold water pipe of the building through the cold water inlet pipe, the hot water outlet pipe 13 is connected to the hot water pipe, and the sewage pipe 14 is used to discharge the scale in the water storage tank. 'The heat storage and heating device 2 is a heat-generating device that converts electrical energy into heat energy after being energized, and is combined with the inside of the water storage tank 11 to preheat the cold water in the water storage cholester to make the water temperature reach 30°C to 451. between. The thermoelectric device 3 is also a heat generating device for converting electrical energy into heat energy after being energized, and is connected to the hot water outlet pipe 13 for flowing the hot water outlet pipe 13 through the hot electric heating device 3, and transmitting the heat and heat. The water flowing through the f 3 is heated instantaneously to reach the temperature set by the user (for example, 65. The controller 4 is coupled to the selected side of the water storage device 1 and electrically connected to the heat storage electric heating device 2, respectively. And the thermoelectric device 3, whereby the heat storage device 2 stops heating when the heat storage device 2 starts to generate heat, and when the pyroelectric device 3 starts to generate heat, the heat storage device 2 stops heating. The power consumption of the segmented heating type electric water heater does not exceed the limit of the general household electric wire, and the setting controller 4 can change the supply to the thermoelectric heating device 3 at intervals according to the water temperature in the hot water outlet pipe 13. The current, in order to control the power of the thermoelectric heating device 3, enables the hot water outlet pipe 13 to be thermostatically discharged. 201237337 As shown in the first figure, the content of the water storage tank 11 of the present invention is implemented as = 〇 liter or less than 100 liters. ,Such as According to the heat formula H=MxSxAT, the invention is more energy efficient than the conventional 12-liter liter storage-type electric water heater and avoids storing too much hot water, but the energy waste caused by the continuous cooling of the hot water. The outer wall of the water storage tank 11 of the present invention may be combined with the heat insulation layer 15 for preventing heat loss, so that the speed of the hot water cooling can be slowed down. As shown in the first figure, the preferred embodiment of the present invention further includes a first a water temperature sensor 5' is coupled to the water storage tank 4 and electrically connected to the controller 4' to sense the water storage tank 11 through the first water temperature sensor 5 The water temperature returns a message to the controller 4 to further control the start or stop of the heat storage electric heating device 2 to control the water temperature in the water storage cholester between 30 ° C and 45 ° C. The preferred embodiment of the present invention further includes a second water sensor 6, which is coupled to the hot water outlet pipe 13 and electrically connected to the controller 4. Inducing the temperature of the water in the hot water outlet pipe 13 through the second water temperature sensor 6, and feeding back a message The controller 4 further adjusts and controls the current supplied to the thermoelectric heating device 3 so that the water temperature in the hot water outlet pipe 13 reaches the temperature set by the user and achieves a constant temperature effect. As shown in the first figure, the present invention The preferred embodiment further includes a water flow sensor 7 disposed in the hot water outlet pipe 13 and electrically connected to the controller 4, and the water flow sensor 7 detects the water flow in the hot water outlet pipe 13. And feeding back the water flow message to the controller 4, so that the controller 4 can adjust and control the current supplied to the thermoelectric heating device 3 at any time to achieve the constant temperature effect. 201237337 By the above-mentioned water storage device 1, the heat storage electric heating device 2 and the heat The structural characteristics, the combination relationship and the heating method of the electric heating device 3, as shown in the third figure, can be supplemented by the cold water inlet pipe 12 into the water storage tank η to a height of four-fifths, and the heat storage electric heating device 2 is activated to save The thermoelectric device 2 heats the cold water in the water storage tank 11 and heats the cold water to 30 degrees Celsius. 〇 to 45. Between the 〇 'in the present invention, it can be heated to a preset 3 〇 t, 35 ° c, 4 〇 t or 45 C, and warm water is stored in the storage water η η, and the heat is prevented by the heat insulation layer 15 Loss of insulation effect. The heat storage electric heater device 2 of the present invention, during the heating process, is based on the aforementioned Mpemba effect and specific heat relationship, which is heated from 1 〇〇 liter (L) to 3 〇 ° c to 45 ° C. The cooling speed is relatively low, so the number of times of starting the heat storage electric heating device 2 can be reduced during the heat preservation process, and the energy consumed for heating to the set temperature is less, so that the power saving effect can be achieved. Also, because the water temperature in the water storage cholester of the present invention is only between 30 C and 45. (Between, it can avoid the accumulation of scale (calcium carbonate, etc.) caused by high temperature, and can avoid the internal pressure of the storage tank is too large, so it can achieve the functions of easy maintenance and long service life. As shown in the second figure, when used When hot water is required, the warm water in the water storage tank 11 of the present invention will flow out from the hot water outlet pipe 13, and the cold water inlet pipe 12 will be replenished with cold water to enter the water storage cholester to make the water storage bladder The water volume is '·' and the water temperature drops slightly, so it is enough to supply the general shower. The warm water flowing out from the hot water outlet 13 will pass through the thermoelectric heating device 3 and the second water temperature sensor 6, and the temperature will be warmed. If the water is higher than 1.6L/min, the controller 4 automatically controls the power supply to the thermoelectric heating device 3, so that the thermoelectric heating device 3 instantaneously heats the warm water by more than 15C, so that the water temperature is maintained in the normal shower; During this heating process, only the warm water between 3 and 3 degrees Celsius is reheated and taken at more than 15 °C above 201237337'. Therefore, the power consumption is also low, and the energy saving effect can also be achieved. The structure of the segmented heating type electric water heater of the present invention The thermal method has achieved the functions of energy saving, easy maintenance, long service life, large water supply and stable water supply. It has practicality and creativity. The application of its technical means is also novel and undoubted. The purpose of the design is in line with the facts, and it has been said that it is reasonable to make progress. To this end, the invention patent application is filed according to law, but the squad is invited to give a detailed examination, and the patent is granted as a prayer, to the sense of virtue. [Simplified illustration] BRIEF DESCRIPTION OF THE DRAWINGS Figure 2 is a schematic cross-sectional view of a preferred embodiment of the present invention. The second drawing is a schematic cross-sectional view of a preferred embodiment of the present invention. The third embodiment is a schematic view of the application state of the preferred embodiment of the present invention. 1 Water storage device 11 Water storage tank 12 Cold water inlet pipe 13 Hot water outlet pipe 14 Sewage pipe 15 Insulation layer 2 Thermal storage and heating device 3 Thermoelectric heating device 4 Controller 5 First water temperature sensor 6 First water temperature induction 7 flow sensor
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