WO2017190522A1 - 一种电饭锅 - Google Patents

一种电饭锅 Download PDF

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Publication number
WO2017190522A1
WO2017190522A1 PCT/CN2017/000302 CN2017000302W WO2017190522A1 WO 2017190522 A1 WO2017190522 A1 WO 2017190522A1 CN 2017000302 W CN2017000302 W CN 2017000302W WO 2017190522 A1 WO2017190522 A1 WO 2017190522A1
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WIPO (PCT)
Prior art keywords
water
pot
rice
rice cooker
heater
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PCT/CN2017/000302
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English (en)
French (fr)
Inventor
郑德智
任少琳
刘俊
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郑德智
任少琳
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Publication of WO2017190522A1 publication Critical patent/WO2017190522A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/002—Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/004—Cooking-vessels with integral electrical heating means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/24—Warming devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/24—Warming devices
    • A47J36/2483—Warming devices with electrical heating means

Definitions

  • the invention relates to the field of rice cooking appliances, in particular to a rice cooker with uniform gelatinization and simple operation.
  • the cooking process of rice cookers on the market usually consists of placing the rice and water in an inner pot as a whole, and then heating the inner pot, boiling the water and even steaming the last rice.
  • This cooking method relies mainly on heating.
  • the bottom part is heated, the heat is always transmitted from the bottom to the top by the water, and during the heating process before boiling, the water and rice in the inner pot are basically in a non-flowing static state, which inevitably leads to a lower temperature, upper part.
  • the temperature is low, unless it is boiling, it is not uniform. Therefore, this pot of rice in this case must be the first pre-cooked, the above-mentioned post-cooked, the degree of water gelatinization in a pot of rice must be different.
  • the following may be over-gelatinized or burnt, the above may be just good or not cooked, especially for the amount of rice cooked, this is now the big rice cooker on the market ( More than 10 cups)
  • the taste of the food is not good, and it is generally hard and soft. This is the main reason.
  • the existing rice cookers are operated, especially for people with poor eyesight. How much water is added to them is difficult for them to grasp, and the softness and hardness of rice is uncontrollable.
  • the object of the present invention is to solve the deficiencies in the prior art cooking techniques, and to provide a rice cooker with more uniform gelatinization and simple operation.
  • a rice cooker includes: a pan disposed inside the outer casing and capable of containing rice and water and having an opening facing upward, covering the upper opening of the pan, capable of heating the pan a bottom heater, a water supply system opening on the upper side wall or the lid of the pot, the water supply system can introduce water or steam from the upper part of the pot into the pot, the water tank communicating with the water supply system, and the water tank Water in the valve
  • the water supply system is accessed under the control of a door, pump or other type of switching device.
  • the rice cooker described in the technical solution is provided with a water tank and a water supply system, and the user only needs to put the rice into the pot and select the corresponding rice cooking instruction, thereby realizing automatic water addition, and solving the existing rice cooker without adding water. A good control problem.
  • the water supply system may heat the water and then introduce it into the pot, and a special water heater may be arranged on the pipeline of the water supply system to carry the water flowing through the pipeline. Heating, it is also possible to bring a part of the pipeline close to, contact with or wrap around the surface of the bottom heater to heat the water flowing through the pipeline. For better heating effect, the water heater and the bottom heater can also be heated together. .
  • a rice cooker includes: a pot disposed inside the outer casing and capable of containing rice and water and having an opening upward; a lid covering the upper opening of the pot, capable of heating the pot a bottom heater, a water supply system opening on the upper side wall of the pot or on the lid, the water supply system can introduce water or steam from the upper part of the pot into the pot, and the water supply system is connected to the bottom of the pot and set There is a pump that can force the convection circulation of the water in the pot from bottom to top.
  • the pot is provided with a filter that allows water to pass through and prevents rice or rice from entering the water supply system, and the filter screen forms a water collection chamber with the wall of the pot.
  • the user adds the cooked rice and the right amount of water to the pot and selects the corresponding rice cooking instruction.
  • the rice cooker heats the hot water in the pot to the upper opening of the water supply system and flows into the pot. Circulating the blisters to make the temperature in the pot uniform and achieve a uniform effect of rice gelatinization at different positions.
  • the water supply system may heat the water and then introduce the water into the pot.
  • a special water heater may be arranged on the pipeline of the water supply system to heat the water flowing through the pipeline, or a part of the pipeline may be brought close to and contacted. Or wound on the bottom heater surface to heat the water flowing through the pipeline, in order to obtain a better heating effect, it may also be a synergistic heating of the upper water heater and the bottom heater. .
  • a drainage system capable of discharging water from the pan is added to the rice cooker using the first or second technical solution. Increased on the basis of the first technical solution
  • a filter screen is provided in the pot to allow water to pass through and prevent rice or rice from entering the drainage system, and the filter screen forms a water collection chamber with the wall of the pot.
  • the drainage system discharges the excess water (rice soup) in the pot when the rice is gelatinized to the preset effect, and the water surface drops to the preset position, further solving the problem that the water addition is not well controlled.
  • a bubble breaking heater may be disposed in the water collecting chamber, and the function is to break the bubble generated in the water collecting chamber after the water level falls below the filter screen (ie, after the rice/rice and water are separated). To prevent the water from coming into contact with the rice/rice in the pot again, so that the cooked rice is more even and delicious.
  • a bubble breaking heater may also be disposed on the outer surface of the pot side wall corresponding to the water collecting chamber. The bubble breaking heater may be provided independently or integrated with the bottom heater.
  • the drainage system and the water supply system are in communication with each other.
  • the waterway structure of the drainage system is a "Y" type structure, wherein the first end is in communication with the water collecting chamber, the second end is connected to the water supply system through the water pump, and the third end is provided with a drain switch device, the drainage The switch device can discharge water (rice soup) to the outside of the rice cooker or in a water tank between the outer casing and the pan.
  • the drainage system and the water tank may each be connected to the water supply system through a water pipe, or may be connected in sequence.
  • the rice cooker of the technical scheme can not only improve the gelatinization uniformity of the rice in the pot and solve the problem of poor control of the water addition, but also has a simple and compact structure.
  • the invention has the beneficial effects that the invention can make the rice gelatinization uniform and/or solve the problem that the water addition amount is not controlled by setting the water supply system and the water tank and/or drainage system matched with the same, so that the cooking becomes uniform
  • the gelatinization is uniform, the quality of each cooking is uniform and the operation is simpler.
  • FIG. 1 is a schematic structural view of a first embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a second embodiment of the present invention.
  • FIG 3 is a schematic structural view of a third embodiment of the present invention.
  • Embodiment 4 is a schematic structural view of Embodiment 4 of the present invention.
  • Fig. 5 is a schematic view showing the structure of a water passage according to a fourth embodiment of the present invention.
  • Embodiment 1 As shown in FIG. 1 , the present invention discloses a rice cooker comprising: a pot 2 disposed inside the outer casing 1 and capable of containing rice and water and having an opening upward, and a water outlet 2a opened on the upper side wall of the pot a lid 3 covering the upper opening of the pan, a bottom heater 4 capable of heating the pan, a water supply system 5 communicating with the water inlet 2a through the water pipe, and a water heater 5a covering at least a part of the water pipe of the water system a water tank 6 communicating with the water supply system, a control system 8 for controlling the water in the water tank to enter the water supply switch device 7a of the water supply system, and the bottom heater 4, the upper water heater 5a, and the water supply switch device 7a, respectively.
  • part of the water pipe of the water supply system 5 can be heated by the bottom heater 4.
  • the control system 8 controls the water supply switch device 7a to release the water in the water tank 6 into the water pipe of the water supply system 5 and is bottomed.
  • the heater 4 and the upper water heater 5a are heated and then injected into the pot from the water inlet 2a.
  • the water supply switch device 7a closes the water path, stops the water supply, and the bottom heater 4 continues to heat the pot. Rice and water until the rice is cooked.
  • the water heater 5a can also selectively heat the water retained in the water pipe of the water supply system into steam and continue to be introduced into the pot to achieve the effect of auxiliary heating.
  • Embodiment 2 As shown in FIG. 2, the present invention discloses a rice cooker comprising: a pot 2 disposed inside the outer casing 1 and capable of containing rice and water and having an opening upward, respectively disposed on the upper side wall and the bottom of the pot
  • a control system 8 electrically connected to the bottom heater 4, the upper water heater 5a, and the water pump 7b, respectively, is provided with a screen 9 in which the screen 9 and the inner wall of the pot 2 form a water collecting chamber 2c, and the screen 9
  • the water can pass through and prevent rice or water from entering the water collecting chamber 2c, and the water outlet
  • the control system 8 controls the water pump 7b to pump the water in the water collecting chamber from the opening 2b on the side wall of the bottom of the pan to the upper part.
  • the water pipe of the water system 5 is heated by the bottom heater 4 and the upper water heater 5a, and then injected into the pot from the water inlet 2a to force the convection of the water in the pot to improve the gelatinization uniformity of the rice in the pot.
  • the water pump 7b stops working, and the bottom heater 4 continues to heat the rice and water in the pot until the rice is cooked.
  • Embodiment 3 discloses a rice cooker with a drainage system 10, a water receiving box 11 and a bubble breaking heater 12 added to the rice cooker of the second embodiment, and the drainage system 10
  • the water path structure is a "Y" type structure, wherein the first end is in communication with the water collecting chamber 2c, the second end is connected to the water supply system through the water pump 7b, and the third end is provided with a drain switch device 7c, which can be in the drain switch device 7c.
  • the water (rice soup) in the water collecting chamber is discharged into the water tank 11 disposed between the outer casing and the pot, and the foaming heater 12 is disposed in the water collecting chamber.
  • the control system 8 controls the water pump 7b to pump the water in the water collecting chamber from the opening 2b on the side wall of the bottom of the pan to the upper part.
  • the water pipe of the water system 5 is heated by the bottom heater 4 and the upper water heater 5a, and then injected into the pot from the water inlet 2a to force the convection of the water in the pot.
  • the water pump 7b stops working, the drain switch device 7c opens to discharge the water (rice soup) in the pot into the water tank 11, the water level in the pot drops to a preset height, and the bottom heater 4 and the bubble breaking heater 12 continue to heat the water in the pot. And rice until the rice is cooked.
  • Embodiment 4 discloses a rice cooker comprising: a pot 2 disposed inside the outer casing 1 and capable of containing rice and water and having an opening upward, respectively disposed on the upper side of the pot Wall and bottom
  • the filter screen 9 forms a water collecting chamber 2c with the inner wall of the pot 2, and the screen 9 can pass water and prevent rice or rice from entering the water collecting chamber 2c;
  • the water path structure of the drainage system 10 is a "Y" type structure, The first end is in communication with the water collecting chamber 2c, the second end is connected to the water supply system through the water pump 7b, and the third end is provided with a drain switch device 7c, which can be used to mix the water in the water collecting chamber with the drainage switch device 7c (rice soup) Discharged into the water tank 11 disposed between the outer casing and the pot;
  • the foaming heater 12 is wrapped around the outer wall of the pot corresponding to the water collecting chamber;
  • the heater 4, the water heater 5a, the water switch device 7a, the water pump 7b, the drain switch device 7c, and the bubble breaking heater are electrically connected to the control system 8, respectively;
  • the water switch device 7a and the water pump 7b are respectively connected to the water supply system 5, and the water
  • the control system controls the water switch device 7a to put the water in the water tank into the water supply system 5 and heat the water through the bottom heater 4.
  • the water inlet 2a is injected into the pot.
  • the water supply switch device 7a is closed to stop the water supply, and the water pump 7b draws the water in the pot through the water outlet 2b and is heated by the bottom heater. 4 and the upper water heater 5a is heated and then injected into the pot again from the water inlet 2a to force the convection of the water in the pot.
  • the control system controls the water pump 7b to stop working and opens the drain switch device 7c, discharging the excess water (rice soup) in the pan into the water tank 11, and the water level in the pan is lowered to an appropriate level.
  • the bottom heater 4 continues to heat the water in the pot, and at the same time activates the bubble breaking heater to prevent the accumulation of bubbles generated in the water collecting chamber and contact with the rice to affect the taste until the rice is cooked.
  • the invention can make the rice paste in the pot uniform and/or solve the problem of poor water control by setting the water supply system between the outer casing and the pot and the water tank and/or the drainage system matched with the same.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)
  • Manufacturing & Machinery (AREA)

Abstract

一种电饭锅，包括外壳（1）、锅（2）、锅盖（3）、底部加热器（4）、滤网（9）、破泡加热器（12）、上水系统（5）以及排水系统（10），滤网（9）与锅底形成一个集水腔（2c），上水系统（5）一端与开设在锅上部侧壁上的上水口（2a）连通，另一端与排水系统（10）连通，构成循环系统；排水系统（10）的水路结构为"Y"结构，第一端与锅底部的集水腔（2c）连通，第二端与上水系统（5）连接，第三端设有排水开关装置（7c），第二端与上水系统（5）之间还连接有水泵（7b），破泡加热器（12）设置在集水腔（2c）内。设置使锅内强制对流的循环系统，并能将多余的米汤排出锅外，做出来的米饭均匀可口，同时解决了加水量不好控制的问题。

Description

一种电饭锅 技术领域
本发明涉及煮饭器具领域，尤其涉及一种糊化均匀、操作简单的电饭锅。
背景技术
现在市面上的电饭锅的煮饭过程，通常是把米和水整体置于一个内锅里面，然后对这个内锅加热，水沸腾乃至汽化最后饭熟，这种煮饭方式由于加热主要依靠底下部加热，热量是始终是通过水从下向上传递的，而且在沸腾以前的升温过程中，内锅里面的水和米基本处于不流动的静止状态，这种状态必然导致下部温度高，上部温度低，除非沸腾，不能均匀。所以此情形的这锅饭来说，一定是下面的先熟，上面的后熟，一锅饭里面的米吸水糊化的程度一定不一样。换句话来说，下面的可能吸水糊化过度或者烧糊，上面的可能刚刚好或者还没熟，特别是对于煮大米量时这种现象尤为明显，现在市面上的大电饭锅煮(10杯以上)出来的饭口感不好，普遍上硬下软，此为主要原因。此外，现有的电饭锅操作起来，尤其是对于视力不好的人群，多少米加多少水对于他们来说比较难以掌握，饭的软硬也就不可控。
因此，现有做饭技术仍有待于改进和发展。
发明内容
本发明的目的是解决现有做饭技术中的不足之处，提供一种糊化更均匀、操作简单的电饭锅。
本发明的第一种技术方案，一种电饭锅，包括：设置在外壳内部可以装米和水并且开口朝上的锅，覆盖所述锅的上部开口的锅盖，能够对锅进行加热的底部加热器，开口于所述锅上部侧壁或锅盖上的上水系统，上水系统可以将水或蒸汽从所述锅上部导入锅内，与所述上水系统连通的水箱，水箱内的水在阀 门、泵或其他种类开关装置的控制下进入所述上水系统。本技术方案所述的电饭锅由于设置有水箱和上水系统，用户只需要将米放入锅中并选择相应的煮饭指令，即可实现自动加水，解决现有电饭锅加水量不好掌控的问题。进一步地，为了提高锅内米的糊化均匀度，上水系统可以将水加热后再导入锅中，可以在所述上水系统的管路上设置专门的上水加热器对流经管路的水进行加热，也可以将一部分管路靠近、接触或缠绕在所述底部加热器表面以便对流经管路的水进行加热，为了获得更好的加热效果，也可以是上水加热器和底部加热器协同加热。
本发明的第二种技术方案，一种电饭锅，包括：设置在外壳内部可以装米和水且开口朝上的锅，覆盖所述锅的上部开口的锅盖，能够对锅进行加热的底部加热器，开口于所述锅上部侧壁或锅盖上的上水系统，上水系统可以将水或蒸汽从所述锅上部导入锅内，上水系统与所述锅的底部连通并设置有可以让锅内水从下到上强制对流循环的泵，锅内设置有能让水通过并且防止米或饭进入所述上水系统的滤网，滤网与锅壁形成一个集水腔。煮饭过程中，用户将淘好的米和适量的水加入锅中并选择相应的煮饭指令，电饭锅一边加热一边将锅内的热水泵至上水系统的上开口并流入锅内，实现循环水泡米，使锅内温度均匀而达到不同位置的米糊化均匀效果。进一步地，上水系统可以将水加热后再导入锅中，可以在所述上水系统的管路上设置专门的上水加热器对流经管路的水进行加热，也可以将一部分管路靠近、接触或缠绕在所述底部加热器表面以便对流经管路的水进行加热，为了获得更好的加热效果，也可以是上水加热器和底部加热器协同加热。。
本发明的第三种技术方案，在使用第一或第二种技术方案的电饭锅基础上增加一个可以将水从所述锅内排出的排水系统。在第一种技术方案基础上增加 排水系统时，锅内增设能让水通过并且防止米或饭进入所述排水系统的滤网，滤网与锅壁形成一个集水腔。排水系统在锅内米糊化至预设效果时将锅内多余的水(米汤)排出，水面下降至预设位置，进一步解决加水量不好掌控的问题。进一步地，还可以在所述集水腔内设置破泡加热器，其作用是在水位降至滤网以下后(即米/饭和水分离后)，将集水腔内产生的汽泡破碎，防止水与锅内的米/饭再次接触，使煮出的米饭更均匀可口。破泡加热器也可以设置在与所述集水腔对应的锅侧壁外表面上。所述破泡加热器可以是独立设置，也可以与所述底部加热器一体化设置。
本发明的第四种技术方案，在使用第三种技术方案的电饭锅基础上，所述排水系统与上水系统互相连通。排水系统的水路结构为“Y”型结构，其中，第一端与所述集水腔连通，第二端通过所述水泵与上水系统连通，第三端设置有排水开关装置，所述排水开关装置可以将水(米汤)排至电饭锅外或设置在外壳与锅之间的接水盒内。当所述电饭锅设置有水箱时，所述排水系统和水箱可以各自通过水管与上水系统连通，也可以是依次连通。使用本技术方案的电饭锅，不仅能够提高锅内米的糊化均匀度和解决加水量不好控制的问题，而且结构简单紧凑。
本发明的有益效果：本发明通过设置上水系统以及与其配套使用的水箱和/或排水系统等，可以使米饭糊化均匀和/或解决加水量不好控制的问题使做饭变得吸水均匀，糊化均匀，每次做饭的品质均一并且操作更为简单。
附图说明
图1是本发明实施例一的结构示意图。
图2是本发明实施例二的结构示意图。
图3是本发明实施例三的结构示意图。
图4是本发明实施例四的结构示意图。
图5是本发明实施例四的水路结构示意图。
具体实施方式
为使本发明的目的、技术方案及优点更加清楚、明确，以下参照附图并举实施例对本发明进一步详细说明。
实施例一，如图1所示，本发明公开了一种电饭锅，包括：设置在外壳1内部可以装米和水并且开口朝上的锅2，开设于锅上部侧壁的上水口2a，覆盖锅的上部开口的锅盖3，能够对锅进行加热的底部加热器4，通过水管与上水口2a连通的上水系统5，至少包覆上水系统的部分水管的上水加热器5a，与上水系统连通的水箱6，控制水箱内的水进入上水系统的上水开关装置7a，与底部加热器4、上水加热器5a、上水开关装置7a分别电气连接的控制系统8，其中，上水系统5的部分水管能被底部加热器4加热。煮饭过程中，用户将淘好的米放入锅中并选择相应的煮饭指令，控制系统8控制上水开关装置7a将水箱6里面的水释放到上水系统5的水管里并被底部加热器4和上水加热器5a加热后从上水口2a注入锅中，当加入锅中的水达到预设位置时，上水开关装置7a关闭水路，停止供水，底部加热器4继续加热锅内的米和水，直到米饭煮好。上水加热器5a在锅内水达到预设位置以后也可以选择性地加热将上水系统水管中留存的水变成蒸汽继续导入锅内，达到辅助加热的效果。
实施例二，如图2所示，本发明公开了一种电饭锅，包括：设置在外壳1内部可以装米和水并且开口朝上的锅2，分别设置在锅的上部侧壁和底部的上水口2a、出水口2b，覆盖锅的上部开口的锅盖3，能够对锅进行加热的底部加热器4，通过水管分别与上水口2a和出水口2b连通的上水系统5，至少包覆上水系统的部分水管的上水加热器5a，设置在出水口2b和上水口2a之间的水泵7b， 与底部加热器4、上水加热器5a、水泵7b分别电气连接的控制系统8，锅内设置有滤网9，其中，滤网9与锅2的内壁形成一个集水腔2c，滤网9能够让水通过并防止米或水进入集水腔2c，出水口2b与集水腔2c连通，上水系统5的部分水管能被底部加热器4加热。煮饭过程中，用户将淘好的米和适量水放入锅中并选择相应的煮饭指令，控制系统8控制水泵7b将集水腔内的水从锅底部侧壁上的开口2b泵至上水系统5的水管中，被底部加热器4和上水加热器5a加热后从上水口2a注入锅中，使锅内的水强制对流，提高锅内米的糊化均匀度。当锅中的水蒸发到预设位置时，水泵7b停止工作，底部加热器4继续加热锅内的米和水直到米饭煮好。
实施例三，如图3所示，本发明公开了一种在实施例二电饭锅基础上增加了排水系统10、接水盒11和破泡加热器12的电饭锅，排水系统10的水路结构为“Y”型结构，其中，第一端与集水腔2c连通，第二端通过水泵7b与上水系统连通，第三端设置有排水开关装置7c，可以在排水开关装置7c的配合下将集水腔内的水(米汤)排至设置在外壳与锅之间的接水盒11内，破泡加热器12设置在集水腔内。煮饭过程中，用户将淘好的米和适量水放入锅中并选择相应的煮饭指令，控制系统8控制水泵7b将集水腔内的水从锅底部侧壁上的开口2b泵至上水系统5的水管中，被底部加热器4和上水加热器5a加热后从上水口2a注入锅中，使锅内的水强制对流，当锅中的米糊化到预设效果时，水泵7b停止工作，排水开关装置7c打开将锅内的水(米汤)排入接水盒11内，锅内水位降至预设高度，底部加热器4和破泡加热器12继续加热锅内的水和米直到米饭煮好。
实施例四，如图4、图5所示，本发明公开了一种电饭锅，包括：设置在外壳1内部可以装米和水并且开口朝上的锅2，分别设置在锅的上部侧壁和底部的 上水口2a、出水口2b，覆盖锅的上部开口的锅盖3，能够对锅进行加热的底部加热器4，通过水管分别与上水口2a和出水口2b连通的上水系统5，至少包覆上水系统的部分水管的上水加热器5a，与上水系统连通的水箱6，控制水箱内的水进入上水系统5的上水开关装置7a，控制系统8，设置在锅内的滤网9，排水系统10，接水盒11，破泡加热器12。其中，滤网9与与锅2的内壁形成一个集水腔2c，滤网9能够让水通过并防止米或饭进入集水腔2c；排水系统10的水路结构为“Y”型结构，其第一端与集水腔2c连通，第二端通过水泵7b与上水系统连通，第三端设置有排水开关装置7c，可以在排水开关装置7c的配合下将集水腔内的水(米汤)排至设置在外壳与锅之间的接水盒11内；破泡加热器12包覆在集水腔所对应的锅外壁壁上；加热器4、上水加热器5a、上水开关装置7a、水泵7b、排水开关装置7c、破泡加热器分别与控制系统8电气连接；上水开关装置7a与水泵7b分别与上水系统5连通，上水系统5的部分水管与底部加热器4贴合设置。煮饭过程中，用户将淘好的米放入锅中并选择相应的煮饭指令，控制系统控制上水开关装置7a将水箱内的水放入上水系统5经底部加热器4上水加热器5a加热后上水口2a注入锅中，当加入锅中的水达到预设位置时，上水开关装置7a关闭，停止供水，水泵7b将锅内的水经出水口2b抽出并被底部加热器4和上水加热器5a加热后从上水口2a再次注入锅中，使锅内的水强制对流。当锅中的米糊化至预设效果时，控制系统控制水泵7b停止工作并打开排水开关装置7c，将锅内多余的水(米汤)排至接水盒11内，锅内水位降至适当的位置，底部加热器4继续加热锅内的水，同时启动破泡加热器，防止集水腔内产生的汽泡堆积并与米饭接触而影响口感，直到米饭煮好。
本发明通过在外壳和锅之间设置上水系统以及与其配套使用的水箱和/或排水系统等，可以使锅内的米糊化均匀和/或解决加水量不好控制的问题，做出 的米饭口感好。

Claims (10)

  1. 一种电饭锅，包括：设置在外壳内部可以装米和水并且开口朝上的锅，覆盖所述锅的上部开口的锅盖，加热所述锅的底部加热器，其特征在于，还设置有开口于所述锅上部侧壁或锅盖上的上水系统，上水系统可以将水或蒸汽从所述锅上部导入锅内。
  2. 根据权利要求1所述的电饭锅，其特征在于，还设置有与所述上水系统水路连通的水箱。
  3. 根据权利要求1或2所述的电饭锅，其特征在于，流经所述上水系统的水能被底部加热器加热。
  4. 根据权利要求1至3任一所述的电饭锅，其特征在于，所述上水系统还设置有上水加热器。
  5. 根据权利要求4所述的电饭锅，其特征在于，设置有开口于锅底部的排水系统，锅内设置有能够让水通过并防止米或饭进入排水系统的滤网。
  6. 根据权利要求5所述的电饭锅，其特征在于，所述滤网设置在锅底部并与锅内壁形成一个集水腔。
  7. 根据权利要求6所述的电饭锅，其特征在于，所述集水腔对应的位置还设置有破泡加热器。
  8. 根据权利要求5至7任一所述的电饭锅，其特征在于，所述上水系统与排水系统的水路相互连通。
  9. 根据权利要求8所述的电饭锅，其特征在于，当所述电饭锅设置有水箱时，所述排水系统和水箱各自通过水管与上水系统连通。
  10. 根据权利要求8所述的电饭锅，其特征在于，当所述电饭锅设置有水箱时，所述排水系统、水箱和上水系统依次连通。
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