JP2004248804A - Rice cooker - Google Patents

Rice cooker Download PDF

Info

Publication number
JP2004248804A
JP2004248804A JP2003041089A JP2003041089A JP2004248804A JP 2004248804 A JP2004248804 A JP 2004248804A JP 2003041089 A JP2003041089 A JP 2003041089A JP 2003041089 A JP2003041089 A JP 2003041089A JP 2004248804 A JP2004248804 A JP 2004248804A
Authority
JP
Japan
Prior art keywords
rice cooker
weight
main body
rice
pan
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2003041089A
Other languages
Japanese (ja)
Inventor
Motomichi Mishima
基道 三島
Tetsuo Obata
哲生 小畑
Masaki Yura
政樹 由良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2003041089A priority Critical patent/JP2004248804A/en
Publication of JP2004248804A publication Critical patent/JP2004248804A/en
Pending legal-status Critical Current

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rice cooker optimally adjusting the water quantity and controlling the optimal rice cooking. <P>SOLUTION: This rice cooker is provided with a rice cooker body 21 and a measurement body 29 on which the rice cooker body is detachably mounted. The rice cooker body is provided with a pot, a pot heating means 25 heating the pot and a lid 24 covering an opening part of the pot. The measurement body is provided with a weight measuring means 30 measuring the weight of the rice cooker body. The weight measuring means is provided with a leaf spring 34 deflected by the weight when the rice cooker body is mounted and a strain sensor 35 detecting the deflection of the leaf spring. The weights of the rice cooker body 21 and the contents of the pot 23 are thus measured through a measurement mount 31 by the weight measuring means 30 having the leaf spring 34 and the strain sensor 35. The weight measuring means 30 measures the weights of the rice and water along with the pot 23 to optimally adjust the water quantity, and constantly measures the weight during cooking even when closing the lid and cooking so as to optimally control the rice cooking based on the weight change in the cooking during cooking. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する利用分野】
本発明は最適な水加減を得るとともに最適な炊飯制御が可能な炊飯器に関するものである。
【0002】
【従来の技術】
従来から、米や水の重量を重量検知手段により測定し最適な水加減を得るようにした炊飯器は知られている(例えば、特許文献1参照)。
【0003】
これは、図5に示すような構成であり、使用者が3合の米を洗米して鍋1に入れ、水位は大まかに合わせておく。そして、鍋1を本体2に収納すると、鍋1とその内容物の重量が加熱手段3に加わり、加熱手段3はスプリング4を圧縮し、スプリング4の力と重量がバランスしたところで停止する。この時、電極上5、電極下6間の容量は、重量検知手段7によって検出され、マイコン8に入力される。変換手段9によって変換された表示データは、表示手段10に送られ表示される。例えば「2.5合」と表示されると、使用者は鍋1に3合の米を入れたことを覚えているので「3.0合」と表示されるまで水を加えるものである。
【0004】
【特許文献1】
特開平1−204623号公報
【0005】
【発明が解決しようとする課題】
しかしながら、前記従来の炊飯器においては、鍋とともに米や水の重量を測定するため最適な水加減を得ることはできるが、閉蓋しての炊飯中の重量は測定していないため、炊飯中の重量変化に基づく最適な炊飯制御を行うことは不可能なものである。
【0006】
本発明は、前記従来の課題を解決するもので、炊飯中の重量変化に基づく最適な炊飯制御を行うことも可能とした炊飯器を提供することを目的とするものである。
【0007】
【課題を解決するための手段】
前記目的を達成するために、本発明の炊飯器は、炊飯器本体と、炊飯器本体が着脱自在に載置される計測本体とを備えたもので、計測本体には、炊飯器本体の重量を計測する重量計測手段を有した炊飯器としたものである。
【0008】
これにより、重量計測手段は、鍋とともに米や水の重量を測定して最適な水加減を得ることができるとともに、閉蓋しての炊飯中の重量も常に測定しているため、炊飯中の重量変化に基づく最適な炊飯制御を行うことも可能となるものである。
【0009】
【発明の実施の形態】
請求項1に記載の発明は、炊飯器本体と、前記炊飯器本体が着脱自在に載置される計測本体とを備え、前記炊飯器本体は、鍋と、鍋を加熱する鍋加熱手段と、鍋の開口部を覆う蓋を有し、前記計測本体は、炊飯器本体の重量を計測する重量計測手段を有し、前記重量計測手段は、炊飯器本体の載置時にその重量により撓む板バネと、板バネの撓みを検出する歪みセンサーとを有する炊飯器とすることにより、重量計測手段は、鍋とともに米や水の重量を測定して最適な水加減を得ることができるとともに、閉蓋しての炊飯中の重量も常に測定しているため、炊飯中の重量変化に基づく最適な炊飯制御を行うことも可能となるものである。また、重量計測手段の構成も板バネと歪みセンサーを有する簡易なものとなっている。
【0010】
請求項2に記載の発明は、炊飯器本体と、前記炊飯器本体が着脱自在に載置される計測本体とを備え、前記炊飯器本体は、鍋と、鍋を加熱する鍋加熱手段と、鍋の開口部を覆う蓋を有し、前記計測本体は、炊飯器本体の重量を計測する重量計測手段を有し、前記重量計測手段は、フェライトとフェライトの周囲に位置するコイルとを有し、フェライトとコイルのいずれか一方を炊飯器本体の載置時に移動するようにしてコイルのインダクタンス変化により重量計測した炊飯器とすることにより、最適な水加減を得るとともに、炊飯中の重量変化に基づく最適な炊飯制御を行うことも可能となり、また、重量計測手段の構成も非接触でフェライトとコイルを有する簡易なものとなっている。
【0011】
請求項3に記載の発明は、炊飯器本体と、前記炊飯器本体が着脱自在に載置される計測本体とを備え、前記炊飯器本体は、鍋と、鍋を加熱する鍋加熱手段と、鍋の開口部を覆う蓋を有し、前記計測本体は、炊飯器本体の重量を計測する重量計測手段を有し、前記重量計測手段は、磁石と磁石近傍のホール素子とを有し、磁石とホール素子のいずれか一方を炊飯器本体の載置時に移動するようにしてホール素子の出力変化により重量計測した炊飯器とすることにより、最適な水加減を得るとともに、炊飯中の重量変化に基づく最適な炊飯制御を行うことも可能となり、また、重量計測手段の構成も非接触で磁石とホール素子を有する簡易なものとなっている。
【0012】
請求項4に記載の発明は、炊飯器本体と、前記炊飯器本体が着脱自在に載置される計測本体とを備え、前記炊飯器本体は、鍋と、鍋を加熱する鍋加熱手段と、鍋の開口部を覆う蓋を有し、前記計測本体は、炊飯器本体の重量を計測する重量計測手段を有し、前記重量計測手段は、一対の電極を有し、一方の電極を炊飯器本体の載置時に移動するようにして電極の静電容量変化により重量計測した炊飯器とすることにより、最適な水加減を得るとともに、炊飯中の重量変化に基づく最適な炊飯制御を行うことも可能となり、また、重量計測手段の構成も一対の電極を有する簡易なものとなっている。
【0013】
【実施例】
以下、本発明の実施例について、図面を参照して説明する。
【0014】
(実施例1)
図1は本発明の実施例1における炊飯器を示すものである。
【0015】
図に示すように、炊飯器本体21は、保護枠22と、保護枠22内に着脱自在に装備した鍋23と、鍋23の開口部を開閉自在に覆う蓋24と、鍋23を加熱する鍋加熱手段25と、スプリング26により付勢されて鍋23底と接し鍋温度を検知する上下移動可能な鍋温度検知手段27と、鍋加熱手段25を制御する制御手段28とを有している。
【0016】
また、炊飯器本体21の全体が着脱自在に載置される計測本体29は、炊飯器本体21全体の重量を計測する重量計測手段30を有している。この重量計測手段30は、炊飯器本体21の底部の凹部21aと合致して炊飯器本体21全体の重量を受ける測定台31と、測定台31の中央底部の突出部31aを案内して測定台31が精度良く上下するよう支持する支持台32と、測定台31の突出部31a底面と当接部材33を介して当接し炊飯器本体21の載置時にその重量により撓む板バネ34と、板バネ34に設けられその撓みを検出する歪みセンサー35とを有している。板バネ34の当接部材33と反対側の端部は、計測本体29に固定されているものである。
【0017】
そしてまた、計測本体29内には、重量計測手段30による重量計測結果を反映させる制御手段36が設けられ、計測本体29外には、制御手段36に応じた表示を行う表示兼操作部37が設けられている。
【0018】
制御手段36は、制御手段28と統一して一つにすることも可能であり、鍋23とともに米や水の重量測定結果に基づく最適な水加減を表示するように制御したり、炊飯中の重量変化に基づく最適な炊飯制御を行うことを可能としている。また、表示兼操作部37は、ここから炊飯操作が可能なものであり、米計量スイッチ、水計量スイッチ、炊飯スイッチなど(何れも図示せず)を備えているとともに、重量計測手段30による米量や水量表示などが制御手段36を通して行うことができるようになっている。
【0019】
次に、上記構成において動作を説明する。
【0020】
まず、表示兼操作部37の米計量スイッチを押して米を鍋23に入れると、炊飯器本体21と鍋23中の米の重量が、測定台31を通じて板バネ34と歪みセンサー35を有する重量計測手段30により計測され、表示兼操作部37に米何カップと表示される。次に水計量スイッチを押すと、米量に応じて必要な水量が表示兼操作部37に表示される(少なめ、最適、多めと言う風に)。ここで、無洗米の場合は、所望の水量位置(例えば、最適位置)になるまで水を入れ、炊飯スイッチを押すと、炊飯が開始する。普通の米の場合は、鍋23を取り出して洗米した後、再度鍋23を炊飯器本体21にセットし、無洗米の時と同様、所望の水量位置になるまで水を入れ、炊飯スイッチを押すと、炊飯が開始する。
【0021】
そして、重量計測手段30は、鍋23だけでなく炊飯器本体21全体の重量を常に計測しているため、制御手段36を通して炊飯中の重量変化に基づく最適な炊飯制御を行うことを可能としているものである。
【0022】
以上のように、本実施例によれば、重量計測手段30は、鍋23とともに米や水の重量を測定して最適な水加減を得ることができるとともに、閉蓋しての炊飯中の重量も常に測定しているため、炊飯中の重量変化に基づく最適な炊飯制御を行うことも可能となるものである。また、重量計測手段30の構成も板バネと歪みセンサーを有する簡易なものとなっている。
【0023】
(実施例2)
次に、本発明の実施例2について、図2を参照しながら説明する。炊飯器としての基本構成は実施例1と同様であるので同一要素については同一符号を付して説明を省略し、相違点を中心に説明する。
【0024】
図に示すように、測定台31の突出部31a内部にフェライト38を設け、フェライト38の周囲に位置してコイル39を設けている。測定台31の突出部31aの下端は板バネ34に設けた当接部材33と当接している。この実施例における板バネ34は、測定台31を鍋底側に常時付勢する単なるバネとして機能しているものである。これにより、コイル39のインダクタンス変化により重量計測を行う重量計測手段30を構成している。
【0025】
なお、コイル39を測定台31の突出部31aに、フェライト38をコイル39の周囲に位置して設けても良い。
【0026】
上記構成において、測定台31に鍋23の加重が掛かると、フェライト38とコイル39の位置がずれて、コイル39のインダクタンスが変化し重量変化として重量計測手段30は読み取ることができる。これにより、実施例1と同様、鍋23とともに米や水の重量を測定して最適な水加減を得ることができるとともに、炊飯中の重量変化に基づく最適な炊飯制御を行うことも可能となるものである。また、重量計測手段30の構成も非接触でフェライト38とコイル39を有する簡易なものとなっている。
【0027】
(実施例3)
次に、本発明の実施例3について、図3を参照しながら説明する。炊飯器としての基本構成は実施例1と同様であるので同一要素については同一符号を付して説明を省略し、相違点を中心に説明する。
【0028】
図に示すように、測定台31の突出部31a内部に磁石40を設け、磁石40の周囲に位置してホール素子41を設けている。測定台31の突出部31aの下端は板バネ34に設けた当接部材33と当接している。この実施例における板バネ34の機能は、実施例2と同様である。これにより、ホール素子41の出力変化により重量計測を行う重量計測手段30を構成している。
【0029】
なお、ホール素子41を測定台31の突出部31aに、磁石40をホール素子41の周囲に位置して設けても良い。
【0030】
上記構成において、測定台31に鍋23の加重が掛かると、磁石40とホール素子41の位置がずれて、ホール効果でホール素子41の出力が変化し重量変化として重量計測手段30は読み取ることができる。これにより、実施例1と同様、鍋23とともに米や水の重量を測定して最適な水加減を得ることができるとともに、炊飯中の重量変化に基づく最適な炊飯制御を行うことも可能となるものである。また、重量計測手段30の構成も非接触で磁石40とホール素子41を有する簡易なものとなっている。
【0031】
(実施例4)
次に、本発明の実施例4について、図4を参照しながら説明する。炊飯器としての基本構成は実施例1と同様であるので同一要素については同一符号を付して説明を省略し、相違点を中心に説明する。
【0032】
図に示すように、測定台31の突出部31aの下方に位置して相対向した一対の電極42、43を設け、一方の電極42は定位置に固定し、他方の電極43は当接部材45を突出部31aの下端に当接させており、測定台31を鍋底側に常時付勢する板バネとしても機能しているものである。当接部材45は電極42に設けた穴を通して突出部31aの下端に当接しているものである。これにより、電極42、43の静電容量変化により重量計測を行う重量計測手段30を構成している。
【0033】
上記構成において、測定台31に鍋23の加重が掛かると、電極43が撓むことで、電極42、43間の距離が変化し、これにより静電容量の変化を重量変化として重量計測手段30は読み取ることができる。これにより、実施例1と同様、鍋23とともに米や水の重量を測定して最適な水加減を得ることができるとともに、炊飯中の重量変化に基づく最適な炊飯制御を行うことも可能となるものである。また、重量計測手段30の構成も一対の電極42、43を有する簡易なものとなっている。
【0034】
【発明の効果】
以上のように、本発明の炊飯器によれば、炊飯器本体と、炊飯器本体が着脱自在に載置される計測本体とを備えたもので、計測本体には、炊飯器本体の重量を計測する重量計測手段を有した炊飯器としたものでり、重量計測手段は、鍋とともに米や水の重量を測定して最適な水加減を得ることができるとともに、閉蓋しての炊飯中の重量も常に測定しているため、炊飯中の重量変化に基づく最適な炊飯制御を行うことも可能となるものである。
【図面の簡単な説明】
【図1】本発明の実施例1における炊飯器の断面図
【図2】本発明の実施例2における炊飯器の重量計測手段を示す構成図
【図3】本発明の実施例3における炊飯器の重量計測手段を示す構成図
【図4】本発明の実施例4における炊飯器の重量計測手段を示す構成図
【図5】従来の炊飯器の断面図
【符号の説明】
21 炊飯器本体
23 鍋
24 蓋
25 鍋加熱手段
29 計測本体
30 重量計測手段
34 板バネ
35 歪みセンサー
38 フエライト
39 コイル
40 磁石
41 ホール素子
42、43 電極
[0001]
FIELD OF THE INVENTION
The present invention relates to a rice cooker capable of obtaining optimal water control and controlling rice cooking optimally.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is known a rice cooker in which the weight of rice and water is measured by a weight detecting means to obtain an optimal water level (for example, see Patent Document 1).
[0003]
This is a configuration as shown in FIG. 5, in which a user washes 3 go rice and puts it in the pot 1, and the water level is roughly adjusted. When the pan 1 is stored in the main body 2, the weight of the pan 1 and the contents thereof is added to the heating means 3, and the heating means 3 compresses the spring 4 and stops when the force and the weight of the spring 4 are balanced. At this time, the capacitance between the upper electrode 5 and the lower electrode 6 is detected by the weight detecting means 7 and input to the microcomputer 8. The display data converted by the conversion means 9 is sent to the display means 10 and displayed. For example, if "2.5 go" is displayed, the user remembers that 3 go rice has been put into the pot 1, so water is added until "3.0 go" is displayed.
[0004]
[Patent Document 1]
JP-A-1-204623
[Problems to be solved by the invention]
However, in the above-mentioned conventional rice cooker, the weight of rice and water can be measured together with the pot to obtain an optimal water level, but the weight of the rice cooked with the lid closed is not measured. It is impossible to perform the optimal rice cooking control based on the weight change of the rice.
[0006]
An object of the present invention is to solve the above-mentioned conventional problem, and an object of the present invention is to provide a rice cooker capable of performing optimal rice control based on a change in weight during rice cooking.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a rice cooker according to the present invention includes a rice cooker main body and a measurement main body on which the rice cooker main body is detachably mounted, and the measurement main body has a weight of the rice cooker main body. And a rice cooker having a weight measuring means for measuring the weight of the rice.
[0008]
Thereby, the weight measuring means can measure the weight of rice and water together with the pan to obtain an optimal water level, and also constantly measures the weight during cooking with the lid closed. It is also possible to perform the optimal rice cooking control based on the weight change.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 includes a rice cooker main body, and a measurement main body on which the rice cooker main body is detachably mounted, wherein the rice cooker main body is a pan, and a pan heating means for heating the pan. It has a lid that covers the opening of the pot, the measuring body has weight measuring means for measuring the weight of the rice cooker main body, and the weight measuring means is a plate bent by the weight when the rice cooker main body is placed. By using a rice cooker having a spring and a strain sensor for detecting the deflection of a leaf spring, the weight measuring means can measure the weight of rice and water together with the pan to obtain an optimal water level, and Since the weight of cooked rice with the lid is also constantly measured, it is possible to perform optimal rice cooking control based on the change in weight during cooking. Also, the configuration of the weight measuring means is a simple one having a leaf spring and a strain sensor.
[0010]
The invention according to claim 2 includes a rice cooker main body, and a measurement main body on which the rice cooker main body is detachably mounted, wherein the rice cooker main body is a pan, and a pan heating means for heating the pan. It has a lid that covers the opening of the pot, the measuring main body has weight measuring means for measuring the weight of the rice cooker main body, and the weight measuring means has a ferrite and a coil located around the ferrite. By moving one of the ferrite and the coil when placing the rice cooker, the rice cooker is weighed by the change in inductance of the coil to obtain the optimal water addition and weight change during cooking. In addition, it is possible to perform optimal rice cooking control based on the above, and the configuration of the weight measuring means is a simple one having a ferrite and a coil in a non-contact manner.
[0011]
The invention according to claim 3 includes a rice cooker main body, and a measurement main body on which the rice cooker main body is detachably mounted, wherein the rice cooker main body is a pan, and a pan heating means for heating the pan. A lid that covers an opening of the pot, wherein the measuring main body has weight measuring means for measuring the weight of the rice cooker main body, the weight measuring means has a magnet and a Hall element near the magnet, And one of the Hall elements is moved when placing the rice cooker main body to make the rice cooker weighed by the output change of the Hall element to obtain the optimal water addition and decrease in the weight change during rice cooking. It is also possible to perform optimal rice cooking control based on the above, and the configuration of the weight measuring means is a simple one having a magnet and a Hall element in a non-contact manner.
[0012]
The invention according to claim 4 includes a rice cooker main body, and a measurement main body on which the rice cooker main body is detachably mounted, wherein the rice cooker main body is a pan, and a pan heating means for heating the pan. A measuring device for measuring the weight of the rice cooker main body, the weight measuring device includes a pair of electrodes, and one of the electrodes is connected to the rice cooker; By using a rice cooker whose weight is measured by changing the capacitance of the electrodes so that it moves when the main body is placed, it is possible to obtain optimal water control and to perform optimal rice cooking control based on the weight change during rice cooking. It becomes possible, and the configuration of the weight measuring means is a simple one having a pair of electrodes.
[0013]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0014]
(Example 1)
FIG. 1 shows a rice cooker according to a first embodiment of the present invention.
[0015]
As shown in the figure, the rice cooker main body 21 heats the protection frame 22, a pot 23 detachably provided in the protection frame 22, a lid 24 for opening and closing the opening of the pot 23, and a pot 23. Pot heating means 25, a pot temperature detecting means 27 which is urged by a spring 26 and moves up and down to contact the bottom of the pot 23 to detect the pot temperature, and a control means 28 for controlling the pot heating means 25. .
[0016]
The measuring body 29 on which the whole rice cooker main body 21 is detachably mounted has a weight measuring means 30 for measuring the weight of the whole rice cooker main body 21. The weight measuring means 30 guides the measuring table 31 which matches the concave portion 21a at the bottom of the rice cooker main body 21 and receives the weight of the whole rice cooker main body 21, and the protrusion 31a at the center bottom of the measuring table 31 to guide the measuring table. A support table 32 for supporting the base 31 so as to move up and down with high accuracy; a leaf spring 34 which is in contact with the bottom surface of the protruding portion 31a of the measurement table 31 via a contact member 33 and is bent by its weight when the rice cooker main body 21 is placed; And a distortion sensor 35 provided on the leaf spring 34 for detecting its bending. The end of the leaf spring 34 opposite to the contact member 33 is fixed to the measurement main body 29.
[0017]
Further, a control means 36 for reflecting the result of the weight measurement by the weight measurement means 30 is provided in the measurement main body 29, and a display and operation section 37 for performing display according to the control means 36 is provided outside the measurement main body 29. Is provided.
[0018]
The control means 36 can be unified with the control means 28 so as to be unified into one, and together with the pot 23, control is performed so as to display an optimal water level based on the result of the weight measurement of rice and water, or during cooking, It is possible to perform optimal rice cooking control based on weight change. The display / operation unit 37 can perform a rice cooking operation from here. The display / operation unit 37 includes a rice measuring switch, a water measuring switch, a rice cooking switch, and the like (none of them are shown). The amount and the amount of water can be displayed through the control means 36.
[0019]
Next, the operation of the above configuration will be described.
[0020]
First, the rice is put into the pot 23 by pressing the rice weighing switch of the display / operation unit 37, and the weight of the rice in the rice cooker body 21 and the pot 23 is measured through the measuring table 31 with the leaf spring 34 and the strain sensor 35. It is measured by the means 30 and the number of cups of rice is displayed on the display / operation unit 37. Next, when the water metering switch is pressed, a necessary water amount is displayed on the display / operation unit 37 in accordance with the rice amount (in a manner such as a small amount, an optimal amount, and a large amount). Here, in the case of non-washed rice, rice is started until a desired water amount position (for example, an optimum position) is reached and water is pressed and a rice cooker switch is pressed. In the case of ordinary rice, after taking out the pot 23 and washing the rice, set the pot 23 on the rice cooker main body 21 again, pour water until the desired water level is reached, and press the rice cooker switch as in the case of non-washed rice. Then, rice cooking starts.
[0021]
And since the weight measuring means 30 always measures the weight of not only the pot 23 but also the whole rice cooker main body 21, it is possible to perform optimal rice cooking control based on the weight change during rice cooking through the control means 36. Things.
[0022]
As described above, according to the present embodiment, the weight measuring unit 30 can measure the weight of rice and water together with the pot 23 to obtain an optimal water level, and can also measure the weight during cooking with the lid closed. Is also constantly measured, so that it is possible to perform optimal rice cooking control based on a change in weight during rice cooking. Further, the configuration of the weight measuring means 30 is also a simple one having a leaf spring and a strain sensor.
[0023]
(Example 2)
Next, a second embodiment of the present invention will be described with reference to FIG. Since the basic configuration of the rice cooker is the same as that of the first embodiment, the same elements will be denoted by the same reference numerals, and description thereof will be omitted.
[0024]
As shown in the figure, a ferrite 38 is provided inside the protruding portion 31 a of the measuring table 31, and a coil 39 is provided around the ferrite 38. The lower end of the protruding portion 31 a of the measuring table 31 is in contact with a contact member 33 provided on a leaf spring 34. The leaf spring 34 in this embodiment functions as a simple spring that constantly urges the measuring table 31 toward the bottom of the pot. Thus, the weight measuring means 30 for measuring the weight by changing the inductance of the coil 39 is configured.
[0025]
Note that the coil 39 may be provided on the protruding portion 31 a of the measurement table 31, and the ferrite 38 may be provided around the coil 39.
[0026]
In the above configuration, when the weight of the pan 23 is applied to the measuring table 31, the position of the ferrite 38 and the coil 39 is shifted, the inductance of the coil 39 changes, and the weight measuring unit 30 can read as a weight change. Thus, similarly to the first embodiment, the weight of rice and water can be measured together with the pot 23 to obtain an optimal water level, and it is also possible to perform optimal rice cooking control based on a change in weight during rice cooking. Things. Also, the configuration of the weight measuring means 30 is a simple one having a ferrite 38 and a coil 39 in a non-contact manner.
[0027]
(Example 3)
Next, a third embodiment of the present invention will be described with reference to FIG. Since the basic configuration of the rice cooker is the same as that of the first embodiment, the same elements will be denoted by the same reference numerals, and description thereof will be omitted.
[0028]
As shown in the figure, a magnet 40 is provided inside the protruding portion 31 a of the measuring table 31, and a Hall element 41 is provided around the magnet 40. The lower end of the protruding portion 31 a of the measuring table 31 is in contact with a contact member 33 provided on a leaf spring 34. The function of the leaf spring 34 in this embodiment is the same as that of the second embodiment. Thus, the weight measuring unit 30 configured to measure the weight based on the output change of the Hall element 41 is configured.
[0029]
The Hall element 41 may be provided on the protruding portion 31 a of the measurement table 31, and the magnet 40 may be provided around the Hall element 41.
[0030]
In the above configuration, when the weight of the pot 23 is applied to the measuring table 31, the position of the magnet 40 and the Hall element 41 is shifted, the output of the Hall element 41 changes due to the Hall effect, and the weight measuring means 30 can read as a weight change. it can. Thus, similarly to the first embodiment, the weight of rice and water can be measured together with the pot 23 to obtain an optimal water level, and it is also possible to perform optimal rice cooking control based on a change in weight during rice cooking. Things. Further, the configuration of the weight measuring means 30 is a simple one having a magnet 40 and a Hall element 41 in a non-contact manner.
[0031]
(Example 4)
Next, a fourth embodiment of the present invention will be described with reference to FIG. Since the basic configuration of the rice cooker is the same as that of the first embodiment, the same elements will be denoted by the same reference numerals, and description thereof will be omitted.
[0032]
As shown in the figure, a pair of opposed electrodes 42 and 43 are provided below the protruding portion 31a of the measuring table 31, one electrode 42 is fixed at a fixed position, and the other electrode 43 is a contact member. 45 is in contact with the lower end of the protruding portion 31a, and also functions as a leaf spring that constantly biases the measuring table 31 toward the bottom of the pot. The contact member 45 is in contact with the lower end of the protruding portion 31a through a hole provided in the electrode 42. Thus, the weight measuring means 30 for measuring the weight based on the capacitance change of the electrodes 42 and 43 is configured.
[0033]
In the above configuration, when the pan 23 is loaded on the measuring table 31, the electrode 43 bends, so that the distance between the electrodes 42 and 43 changes. Can be read. Thus, similarly to the first embodiment, the weight of rice and water can be measured together with the pot 23 to obtain an optimal water level, and it is also possible to perform optimal rice cooking control based on a change in weight during rice cooking. Things. Further, the configuration of the weight measuring means 30 is also a simple one having a pair of electrodes 42 and 43.
[0034]
【The invention's effect】
As described above, according to the rice cooker of the present invention, a rice cooker main body and a measurement main body on which the rice cooker main body is detachably mounted are provided, and the measurement main body has a weight of the rice cooker main body. It is a rice cooker with weight measuring means to measure, and the weight measuring means can measure the weight of rice and water together with the pan to obtain the optimal water level, while cooking rice with the lid closed. Since the weight of the rice is constantly measured, it is also possible to perform the optimal rice cooking control based on the weight change during the rice cooking.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a rice cooker according to a first embodiment of the present invention. FIG. 2 is a configuration diagram illustrating a weight measuring unit of the rice cooker according to a second embodiment of the present invention. FIG. FIG. 4 is a configuration diagram showing a weight measuring unit of a rice cooker according to a fourth embodiment of the present invention. FIG. 5 is a cross-sectional view of a conventional rice cooker.
21 rice cooker body 23 pot 24 lid 25 pot heating means 29 measuring body 30 weight measuring means 34 leaf spring 35 strain sensor 38 ferrite 39 coil 40 magnet 41 hall elements 42, 43 electrodes

Claims (4)

炊飯器本体と、前記炊飯器本体が着脱自在に載置される計測本体とを備え、前記炊飯器本体は、鍋と、鍋を加熱する鍋加熱手段と、鍋の開口部を覆う蓋を有し、前記計測本体は、炊飯器本体の重量を計測する重量計測手段を有し、前記重量計測手段は、炊飯器本体の載置時にその重量により撓む板バネと、板バネの撓みを検出する歪みセンサーとを有する炊飯器。A rice cooker main body, and a measurement main body on which the rice cooker main body is detachably mounted, the rice cooker main body has a pan, a pan heating means for heating the pan, and a lid for covering an opening of the pan. The measuring body has weight measuring means for measuring the weight of the rice cooker main body, and the weight measuring means detects a leaf spring bent by the weight when the rice cooker main body is placed, and a deflection of the leaf spring. Rice cooker having a distortion sensor. 炊飯器本体と、前記炊飯器本体が着脱自在に載置される計測本体とを備え、前記炊飯器本体は、鍋と、鍋を加熱する鍋加熱手段と、鍋の開口部を覆う蓋を有し、前記計測本体は、炊飯器本体の重量を計測する重量計測手段を有し、前記重量計測手段は、フェライトとフェライトの周囲に位置するコイルとを有し、フェライトとコイルのいずれか一方を炊飯器本体の載置時に移動するようにしてコイルのインダクタンス変化により重量計測した炊飯器。A rice cooker main body, and a measurement main body on which the rice cooker main body is detachably mounted, the rice cooker main body has a pan, a pan heating means for heating the pan, and a lid for covering an opening of the pan. Then, the measuring main body has a weight measuring means for measuring the weight of the rice cooker main body, the weight measuring means has a ferrite and a coil located around the ferrite, one of the ferrite and the coil A rice cooker that moves when the rice cooker is placed and measures the weight by changing the inductance of the coil. 炊飯器本体と、前記炊飯器本体が着脱自在に載置される計測本体とを備え、前記炊飯器本体は、鍋と、鍋を加熱する鍋加熱手段と、鍋の開口部を覆う蓋を有し、前記計測本体は、炊飯器本体の重量を計測する重量計測手段を有し、前記重量計測手段は、磁石と磁石近傍のホール素子とを有し、磁石とホール素子のいずれか一方を炊飯器本体の載置時に移動するようにしてホール素子の出力変化により重量計測した炊飯器。A rice cooker main body, and a measurement main body on which the rice cooker main body is detachably mounted, the rice cooker main body has a pan, a pan heating means for heating the pan, and a lid for covering an opening of the pan. The measuring body has weight measuring means for measuring the weight of the rice cooker main body, the weight measuring means has a magnet and a Hall element near the magnet, and cooks one of the magnet and the Hall element. A rice cooker whose weight is measured by changing the output of the Hall element as it moves when the main body is placed. 炊飯器本体と、前記炊飯器本体が着脱自在に載置される計測本体とを備え、前記炊飯器本体は、鍋と、鍋を加熱する鍋加熱手段と、鍋の開口部を覆う蓋を有し、前記計測本体は、炊飯器本体の重量を計測する重量計測手段を有し、前記重量計測手段は、一対の電極を有し、一方の電極を炊飯器本体の載置時に移動するようにして電極の静電容量変化により重量計測した炊飯器。A rice cooker main body, and a measurement main body on which the rice cooker main body is detachably mounted, the rice cooker main body has a pan, a pan heating means for heating the pan, and a lid for covering an opening of the pan. The measuring body has a weight measuring means for measuring the weight of the rice cooker main body, the weight measuring means has a pair of electrodes, and one of the electrodes is moved when the rice cooker main body is placed. A rice cooker whose weight is measured by changing the capacitance of the electrode.
JP2003041089A 2003-02-19 2003-02-19 Rice cooker Pending JP2004248804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003041089A JP2004248804A (en) 2003-02-19 2003-02-19 Rice cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003041089A JP2004248804A (en) 2003-02-19 2003-02-19 Rice cooker

Publications (1)

Publication Number Publication Date
JP2004248804A true JP2004248804A (en) 2004-09-09

Family

ID=33024775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003041089A Pending JP2004248804A (en) 2003-02-19 2003-02-19 Rice cooker

Country Status (1)

Country Link
JP (1) JP2004248804A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011245119A (en) * 2010-05-28 2011-12-08 Sharp Corp Rice cooker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011245119A (en) * 2010-05-28 2011-12-08 Sharp Corp Rice cooker
CN102905583A (en) * 2010-05-28 2013-01-30 夏普株式会社 Rice cooker
CN102905583B (en) * 2010-05-28 2014-11-05 夏普株式会社 Rice cooker

Similar Documents

Publication Publication Date Title
JP7307966B2 (en) rice cooker
CN1682628A (en) Electric rice cooker
KR101339945B1 (en) Electric range for fixing heater and measuring weight by selective heating and size adjustment
JP2004248804A (en) Rice cooker
US6600140B2 (en) Configuration with a cooker and cooktop with an integrated weighting function
CN109380986B (en) Rice cooker
JP2004248803A (en) Rice cooker
JP2005000489A (en) Rice cooker
JP2006055562A (en) Rice cooker
JP4258419B2 (en) rice cooker
JP3921846B2 (en) Weight measuring device
JP2005304521A (en) Rice cooker
JP4036113B2 (en) rice cooker
JP2004347452A (en) Weighing apparatus
JP4171692B2 (en) rice cooker
JP4389825B2 (en) rice cooker
JP2000005053A (en) Electric rice cooker capable of measuring quantity of rice and water
JPH0132897B2 (en)
JP4175268B2 (en) rice cooker
JP2896880B2 (en) Weight detector for cooker
KR200373957Y1 (en) Electrical cooker controlling water volume
JP2004271193A (en) Weight measuring device and weight measuring method of cooker
JP4206957B2 (en) rice cooker
JPS61149828A (en) Weighing instrument
JP4258418B2 (en) rice cooker