WO2019019259A1 - 微波饭煲 - Google Patents

微波饭煲 Download PDF

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Publication number
WO2019019259A1
WO2019019259A1 PCT/CN2017/100134 CN2017100134W WO2019019259A1 WO 2019019259 A1 WO2019019259 A1 WO 2019019259A1 CN 2017100134 W CN2017100134 W CN 2017100134W WO 2019019259 A1 WO2019019259 A1 WO 2019019259A1
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WIPO (PCT)
Prior art keywords
microwave
proximity switch
upper cover
rice cooker
cover assembly
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Ceased
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PCT/CN2017/100134
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English (en)
French (fr)
Inventor
彭定元
王成龙
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Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
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Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
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Publication of WO2019019259A1 publication Critical patent/WO2019019259A1/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
    • A47J27/004—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
    • A47J36/06—Lids or covers for cooking-vessels
    • A47J36/10—Lid-locking devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves

Definitions

  • the invention relates to the field of microwave heating, in particular to a microwave rice cooker.
  • Rice cookers are one of the common cookware.
  • the heating device of the rice cooker is usually provided as a heating plate or a microwave generating device.
  • the rice cooker using the microwave generating device as the heating device may be referred to as a microwave rice cooker, and the microwave generated by the microwave generating device such as the magnetron causes the molecules in the food to oscillate and frictionally generate heat, thereby heating and cooking the cooked food.
  • microwave heating has been widely used in many aspects of human production and life, microwave heating should be carried out in a confined space to prevent microwaves from leaking to the outside of the heating device.
  • the amount of leakage exceeds a certain value, it may have an adverse effect on the physical and mental health of the consumer. Therefore, it is necessary to ensure that the microwave rice cooker can well isolate the microwave radiation.
  • the hinge support portion of the microwave rice cooker connecting the upper cover assembly and the body assembly is broken, if the connecting wire remains connected, it may still be used by the consumer, which adversely affects the physical and mental health. In view of this, it is necessary to provide a microwave rice cooker that can reduce or prevent consumers from being attacked by microwaves.
  • the object of the present invention is to overcome the technical problem of the microwave rice cooker being unsafe in the prior art, and to provide a microwave rice cooker capable of preventing the microwave generating device which generates microwaves from being activated in the case of abnormal closing.
  • an aspect of the present invention provides a microwave rice cooker including an upper lid assembly and a cartridge assembly, the upper lid assembly being hinged to the cartridge assembly by a hinge support portion, the crucible a heating chamber is disposed in the body assembly, the microwave generating device is disposed outside the heating chamber for transmitting microwaves to the heating chamber, and one of the upper cover assembly and the body assembly is mounted to control the microwave generation The device stops the proximity switch that emits the microwave, and the other has a magnetic member corresponding to the proximity switch.
  • the proximity switch controls the microwave generating device to stop emitting microwaves when the hinge support is in a failed state.
  • the magnetic member is mounted on the upper cover assembly, and the proximity switch is mounted on the body assembly.
  • the magnetic member is mounted on the upper cover assembly by a fixing block formed with a fitting groove for accommodating the magnetic member.
  • the upper cover assembly has an annular groove having a tapered cross section, and a peripheral contour of the fixed block is tapered to extend in a direction toward the body assembly to be installed in the annular groove.
  • the upper end of the heating chamber is circumferentially formed with a radially extending rim, and the proximity switch is mounted on a lower side of the rim.
  • the edge of the heating chamber is provided with a fixing bracket, and the proximity switch is snapped onto the fixing bracket.
  • the upper cover assembly and the body assembly are correspondingly formed with a locking member that cooperates with each other, the locking member is disposed opposite to the hinge supporting portion, and the proximity switch and the magnetic member are disposed on Relative to one side of the hinge support.
  • the proximity switch, the magnetic member and the locking member are in the same plane as the central axis of the body assembly.
  • the distance between the magnetic member and the proximity switch exceeds a predetermined range, so that the microwave generating device cannot be started, thereby avoiding consumption.
  • the person is exposed to microwaves and has high security.
  • FIG. 1 is a cross-sectional structural view of a microwave rice cooker in accordance with a preferred embodiment of the present invention
  • Figure 2 is a schematic view showing the mounting structure of the magnetic member of Figure 1;
  • Figure 3 is an enlarged view of a portion A in Figure 2;
  • Figure 4 is an enlarged view of a portion B in Figure 1;
  • Figure 5 is a schematic view showing the mounting structure of the proximity switch of Figure 1;
  • Fig. 6 is an enlarged view of a portion C in Fig. 5.
  • a microwave rice cooker includes an upper cover assembly 1 and a cartridge assembly 2 hinged to each other by a hinge support portion 3.
  • the upper cover assembly 1 is rotatable about the hinge support portion 3 relative to the body assembly 2 between the open position and the closed position.
  • the cartridge assembly 2 includes a housing 21, an inner pot 22, a heating chamber 23, a microwave generating device 24, and the like.
  • the inner pot 22 can be built in the heating chamber 23, and the microwave generating device 24 heats the food in the inner pot 22 by generating microwaves.
  • the microwave generating device 24 can be a magnetron.
  • the microwave generating device 24 when the upper cover assembly 1 is in the closed position, it is controlled by the lock member 8 as described later so that the microwave generating device 24 can be activated; when the upper cover assembly 1 is in the open position, the microwave generating device is caused 24 stopped working. Thereby, it is possible to prevent the microwave generating device 24 from being unreasonably activated in the uncovered state of the upper cover assembly 1 to prevent the microwave radiation caused by the user's operation error.
  • the present invention additionally provides components for controlling the microwave generating device 24 to improve the safety of use of the microwave rice cooker under different conditions.
  • the upper cover assembly 1 is mounted with a magnetic member 5 on which the proximity switch 4 corresponding to the magnetic member 5 is mounted.
  • the microwave generating device 24 When the distance between the magnetic member 5 and the proximity switch 4 is less than a predetermined value, the microwave generating device 24 can be activated; when the distance between the magnetic member 5 and the proximity switch 4 exceeds the predetermined value, the microwave generating device 24 stop working.
  • the microwave generating device 24 stop working.
  • the microwave generating device 24 cannot be activated, thereby avoiding the consumer being exposed to microwaves and having high security.
  • the provision of the magnetic member 5 and the proximity switch 4 described above can also prevent the microwave generating device 24 from being activated in other abnormally closed states, which is also advantageous for improving the safety of the microwave rice cooker.
  • the magnetic member 5 of the present invention can be various components capable of triggering the proximity switch 4, such as a magnet or the like.
  • the proximity switch 4 can control the microwave generating device 24 in various suitable forms, for example, it can be connected to the start control circuit of the proximity switch 4, or can transmit a signal for forcing the microwave generating device 24 to stop operation to the control unit or the like.
  • the magnetic member 5 can be interchanged with the proximity switch 4, that is, the proximity switch 4 is mounted on the upper cover assembly 1, and the magnetic member 5 is mounted on the body assembly 2.
  • the proximity switch 4 is mounted to the body assembly 2 to be more conveniently arranged to control the microwave generating device 24.
  • the magnetic member 5 can be mounted on the upper cover assembly 1 through the fixing block 6, thereby facilitating the convenient mounting to the upper cover assembly 1 by setting the fixing block 6 to have a certain elasticity or a specific material.
  • the magnetic block 5 can be pre-loaded to the fixed block 6 first, and then the positioning fit between the fixed block 6 and the upper cover assembly 1 is such that the magnetic block 5 is located at a predetermined position, which is advantageous for improving the mounting accuracy and accurately triggering.
  • Proximity switch 4 is advantageous for improving the mounting accuracy and accurately triggering.
  • the fixing block 6 may be formed with a fitting groove into which the magnetic member 5 is accommodated and faces the body assembly 2.
  • the door body of the upper cover assembly 1 may have an annular groove having a tapered cross section, and the outer peripheral contour of the fixing block 6 is gradually extended in a direction toward the body assembly 2 (for example, formed into a frustum shape), so as to be convenient Stable installation in the annular groove.
  • the proximity switch 4 can be mounted in position in the cartridge assembly 2.
  • a heating chamber 23 for accommodating the inner pot 22 is disposed in the outer casing 21, and the proximity switch 4 can be mounted on the heating chamber 23.
  • the upper end of the heating chamber 23 is usually formed with a radially extending rim 23a, and the proximity switch 4 is preferably mounted on the lower side of the rim 23a. Since the edge 23a of the heating chamber 23 is relatively close to the sealing engagement portion of the upper cover assembly 1 and the cartridge assembly 2, the proximity switch 4 is coupled thereto to more accurately respond to the closed state of the upper cover assembly 1.
  • the rim 23a of the heating chamber 23 is typically provided with a mounting bracket 7 for attachment to associated components in the cartridge assembly 2.
  • the proximity switch 4 can be mounted to the lower side of the rim 23a of the heating chamber 23 by being snapped to the fixing bracket 7. Since the fixing bracket 7 can be a conventional member for fixing the heating chamber 23, it is not necessary to additionally provide a fixing member that fixes the proximity switch 4, and the proximity switch 4 can be firmly connected with a simpler structure.
  • the upper cover assembly 1 and the body assembly 2 are generally formed with latching members 8 that cooperate with each other for locking the upper cover assembly 1 in the closed position. Since the lock member 8 is typically disposed opposite to the hinge support portion 8, in order to improve the control precision of the proximity switch 4, it may be disposed with the magnetic member 5 on the side closer to the hinge support portion 3, respectively.
  • the proximity switch 4, the magnetic member 5 and the locking member 8 can be combined with the central axis of the body assembly 2 On the same plane, the distance between the proximity switch 4 and the magnetic member 5 can better reflect the state of the hinge support 3 (whether it is disabled).

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Cookers (AREA)

Abstract

一种微波饭煲，包括通过铰链支撑部(3)相互铰接的上盖组件(1)和煲体组件(2)，煲体组件(2)内设置有加热腔(23)和用于发射微波的微波发生装置(24)，上盖组件(1)和煲体组件(2)中的一者上安装有能够控制微波发生装置(23)停止发射微波的接近开关(4)，另一者上安装有与接近开关(4)对应的磁性件(5)。当由于铰链支撑部(3)断裂等导致上盖组件(1)未正常盖在煲体组件(2)上时，磁性件(5)与接近开关(4)之间的距离超出预定范围，导致微波发生装置(24)无法启动，由此避免消费者受到微波侵害，具有较高的安全性。

Description

微波饭煲 技术领域
本发明涉及微波加热领域，具体地涉及一种微波饭煲。
背景技术
电饭煲是常见的炊具之一。根据加热方式不同，电饭煲的加热装置通常设置为发热盘或微波发生装置。其中，以微波发生装置为加热装置的电饭煲可以称作微波饭煲，通过微波发生装置例如磁控管产生的微波使得食物中的分子产生摆动、摩擦生热，从而加热并煮熟食物。
尽管微波加热已被广泛应用于人类生产生活的多个方面，但微波加热宜在密闭空间进行，避免微波泄漏到加热器具外部。当其泄漏量超过一定值时，可能对消费者的身心健康存在不良影响。因此，需要保证微波饭煲能够良好隔离微波辐射。
然而，当微波饭煲中连接上盖组件和煲体组件的铰链支撑部发生断裂时，若连接导线仍保持连接，仍可能被消费者继续使用，对其身心健康产生不良影响。有鉴于此，有必要提供一种能够减少或避免消费者受到微波侵害的微波饭煲。
发明内容
本发明的目的是为了克服现有技术存在的微波饭煲不安全的技术问题，提供一种微波饭煲，该微波饭煲能够在非正常合盖情形下阻止产生微波的微波发生装置启动。
为了实现上述目的，本发明一方面提供一种微波饭煲，包括上盖组件和煲体组件，所述上盖组件通过铰链支撑部与所述煲体组件铰接，所述煲 体组件内设置有加热腔，微波发生装置设置在该加热腔外部，用于向加热腔发射微波，所述上盖组件和所述煲体组件中的一者上安装有能够控制所述微波发生装置停止发射微波的接近开关，另一者上安装有与该接近开关对应的磁性件。
优选地，当所述铰链支撑部处于失效状态下，所述接近开关控制所述微波发生装置停止发射微波。
优选地，所述磁性件安装于所述上盖组件上，所述接近开关安装于所述煲体组件上。
优选地，所述磁性件通过固定块安装于所述上盖组件上，所述固定块形成有容纳所述磁性件的嵌合槽。
优选地，所述上盖组件具有截面呈锥形的环形槽，所述固定块的外周轮廓沿朝向所述煲体组件的方向渐缩延伸以安装于所述环形槽内。
优选地，所述加热腔的上端周向形成有径向延伸的边沿，所述接近开关安装于该边沿的下侧。
优选地，所述加热腔的所述边沿上设置有固定支架，所述接近开关卡接至该固定支架上。
优选地，所述上盖组件和所述煲体组件上对应形成有彼此配合的锁扣件，该锁扣件与所述铰链支撑部相对设置，且所述接近开关和所述磁性件设置于相对靠近所述铰链支撑部的一侧。
优选地，所述接近开关、所述磁性件和所述锁扣件与所述煲体组件的中心轴线处于同一平面上。
通过上述技术方案，当由于铰链支撑部断裂等导致上盖组件未正常盖在煲体组件上时，磁性件与接近开关之间的距离超出预定范围，导致微波发生装置无法启动，由此避免消费者受到微波侵害，具有较高的安全性。
附图说明
附图是用来提供对本发明的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本发明，但并不构成对本发明的限制。在附图中：
图1是根据本发明一种优选实施方式的微波饭煲的剖视结构示意图；
图2是图1中磁性件的安装结构示意图；
图3是图2中的局部A的放大图；
图4是图1中的局部B的放大图；
图5是图1中接近开关的安装结构示意图；
图6是图5中的局部C的放大图。
具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
参照图1所示，根据本发明一种优选实施方式的微波饭煲，包括通过铰链支撑部3相互铰接的上盖组件1和煲体组件2。由此，上盖组件1能够绕铰链支撑部3相对煲体组件2在打开位置和合盖位置之间转动。煲体组件2包括外壳21、内锅22、加热腔23以及微波发生装置24等，内锅22能够内置于加热腔23中，微波发生装置24通过产生微波加热内锅22中的食物。典型地，微波发生装置24可以为磁控管。通常地，当上盖组件1处于合盖位置时，通过如随后所述的锁扣件8控制为使得微波发生装置24能够被启动；当上盖组件1处于打开位置时，则使得微波发生装置24停止工作。由此，可以避免上盖组件1未合盖状态下不合理地启动微波发生装置24，防止用户操作错误导致的微波辐射。
然而，仅利用锁扣件8等传统控制元件在某些特定情形下难以保证使用安全性。例如，当铰链支撑部3断裂时，上盖组件1并不能完全按照初 始设计到达合盖位置，而在上盖组件1与煲体组件2之间产生相对较大的缝隙，微波发生装置24产生的微波可能通过该缝隙向外传播，不利于用户安全。为此，本发明额外地设置了控制微波发生装置24的元器件，以提高微波饭煲的不同状况下的使用安全性。具体地，在图示优选实施方式中，上盖组件1上安装有磁性件5，煲体组件2上安装有与该磁性件5对应的接近开关4。当磁性件5与该接近开关4之间的距离小于预定值时，微波发生装置24能够被启动；当磁性件5与该接近开关4之间的距离超出所述预定值时，微波发生装置24停止工作。由此，当由于铰链支撑部3断裂或铰链脱离等失效导致上盖组件1未正常盖在煲体组件2上时，磁性件5与接近开关之4之间的距离超出预定范围，导致微波发生装置24无法启动，由此避免消费者受到微波侵害，具有较高的安全性。设置上述磁性件5和接近开关4还能够在其他非正常合盖状态下阻止微波发生装置24启动，同样有利于提高微波饭煲的安全性。
可以理解的是，本发明所述磁性件5可以为各种能够触发接近开关4的元件，如磁铁等。接近开关4可以以多种适当形式控制微波发生装置24，例如其可以接入接近开关4的启动控制电路中，或者将强制微波发生装置24停止工作的信号发送至控制单元等。
在另一种优选实施方式中，磁性件5可以与接近开关4互换位置，即将接近开关4安装于上盖组件1上，磁性件5安装于煲体组件2上。相比而言，接近开关4安装于煲体组件2能够更方便地设置为控制微波发生装置24。
结合图1至图4所示，磁性件5可以通过固定块6安装于上盖组件1上，由此便于通过将固定块6设置为具有一定弹性或特定材质而方便地安装于上盖组件1。通过这种设置，可以首先将磁性块5预装至固定块6，然后通过固定块6与上盖组件1之间的定位配合，使得磁性块5位于预定位置，有利于提高安装精度并准确触发接近开关4。
具体地，固定块6可以形成有嵌合槽，磁性件5容纳至该嵌合槽中并朝向煲体组件2。其中，上盖组件1(的门体)可以具有截面呈锥形的环形槽，固定块6的外周轮廓沿朝向煲体组件2的方向渐缩延伸(如形成为锥台形)，以能够方便地稳定安装于环形槽内。
对应地，接近开关4可以安装于煲体组件2中的适当位置。结合图5和图6所示，外壳21内设置有容置内锅22的加热腔23，接近开关4可以安装于该加热腔23上。其中，加热腔23的上端周缘通常形成有径向延伸的边沿23a，接近开关4优选安装于该边沿23a的下侧。由于加热腔23的边沿23a相对靠近于上盖组件1与煲体组件2密封配合部，因此将接近开关4连接于此能够更准确地响应于上盖组件1的合盖状态。
加热腔23的边沿23a通常设置有固定支架7，用于与煲体组件2中的相关部件固定。接近开关4可以通过卡接至该固定支架7而安装于加热腔23的边沿23a下侧。由于固定支架7可以为用于固定加热腔23的传统部件，因此无需额外设置固定接近开关4的固定元件，能够以较简单的结构稳固地连接接近开关4。
正如上述，上盖组件1和煲体组件2上通常对应形成有彼此配合的锁扣件8，用于将上盖组件1锁定在合盖位置。由于锁扣件8典型地被设置为与铰链支撑部8相对，为提高接近开关4的控制精度，其可以与磁性件5分别设置于更靠近铰链支撑部3的一侧。
以铰链支撑部3断裂失效的情形为例，当上盖组件1和煲体组件2上的锁扣件8配合时，煲体组件2在锁扣位置对上盖组件1产生向下的约束力，这导致其相对侧的部分微微向上翘起，导致上盖组件1与煲体组件2之间的间距相比正常情况下稍大，由此更易于引起接近开关4和磁性件5之间的间距变化。相比于将其设置于靠近锁扣件8的一侧，这种设置方式具有更高的可靠性。
其中，接近开关4、磁性件5和锁扣件8可以与煲体组件2的中心轴线 处于同一平面上，由此接近开关4与磁性件5之间的间距能够更好地反应铰链支撑部3的状态(是否失效)。
以上结合附图详细描述了本发明的优选实施方式，但是，本发明并不限于此。在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，包括各个具体技术特征以任何合适的方式进行组合。为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。但这些简单变型和组合同样应当视为本发明所公开的内容，均属于本发明的保护范围。

Claims (9)

  1. 一种微波饭煲，包括上盖组件(1)和煲体组件(2)，所述的上盖组件(1)通过铰链支撑部(3)与所述煲体组件(2)铰接，所述煲体组件(2)内设置有加热腔(23)，微波发生装置(24)设置在所述加热腔(23)外部，用于向所述加热腔(23)发射微波，其特征在于，所述上盖组件(1)和所述煲体组件(2)中的一者上安装有能够控制所述微波发生装置(24)停止发射微波的接近开关(4)，另一者上安装有与该接近开关(4)对应的磁性件(5)。
  2. 根据权利要求1所述的微波饭煲，其特征在于，当所述铰链支撑部(3)处于失效状态下，所述接近开关(4)控制所述微波发生装置(24)停止发射微波。
  3. 根据权利要求1所述的微波饭煲，其特征在于，所述磁性件(5)安装于所述上盖组件(1)上，所述接近开关(4)安装于所述煲体组件(2)上。
  4. 根据权利要求3所述的微波饭煲，其特征在于，所述磁性件(5)通过固定块(6)安装于所述上盖组件(1)上，所述固定块(6)形成有容纳所述磁性件(5)的嵌合槽。
  5. 根据权利要求4所述的微波饭煲，其特征在于，所述上盖组件(1)具有截面呈锥形的环形槽，所述固定块(6)的外周轮廓沿朝向所述煲体组件(2)的方向渐缩延伸以安装于所述环形槽内。
  6. 根据权利要求3所述的微波饭煲，其特征在于，所述加热腔(23) 的上端周向形成有径向延伸的边沿(23a)，所述接近开关(4)安装于该边沿(23a)的下侧。
  7. 根据权利要求6所述的微波饭煲，其特征在于，所述加热腔(23)的所述边沿(23a)上设置有固定支架(7)，所述接近开关(4)卡接至该固定支架(7)上。
  8. 根据权利要求1至7中任意一项所述的微波饭煲，其特征在于，所述上盖组件(1)和所述煲体组件(2)上对应形成有彼此配合的锁扣件(8)，该锁扣件(8)与所述铰链支撑部(3)相对设置，且所述接近开关(4)和所述磁性件(5)设置于相对靠近所述铰链支撑部(3)的一侧。
  9. 根据权利要求8所述的微波饭煲，其特征在于，所述接近开关(4)、所述磁性件(5)和所述锁扣件(8)与所述煲体组件(2)的中心轴线处于同一平面上。
PCT/CN2017/100134 2017-07-28 2017-09-01 微波饭煲 Ceased WO2019019259A1 (zh)

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