JPS63105715A - Vacuum electric heat-insulating pot - Google Patents
Vacuum electric heat-insulating potInfo
- Publication number
- JPS63105715A JPS63105715A JP25401386A JP25401386A JPS63105715A JP S63105715 A JPS63105715 A JP S63105715A JP 25401386 A JP25401386 A JP 25401386A JP 25401386 A JP25401386 A JP 25401386A JP S63105715 A JPS63105715 A JP S63105715A
- Authority
- JP
- Japan
- Prior art keywords
- vacuum
- container
- getter
- inner container
- vacuum double
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 238000005485 electric heating Methods 0.000 description 5
- 238000001994 activation Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000005219 brazing Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Thermally Insulated Containers For Foods (AREA)
- Cookers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 産業上の利用分野 本発明は真空式電気保温ポットに関するものである。[Detailed description of the invention] Industrial applications The present invention relates to a vacuum type electric heating pot.
従来の技術
一般にこの種の真空式電気保温ポットの真空二重容器は
、この真空二重容器を構成する内容器の外周面もしくは
外容器の内周面にゲッターを配設し、そして内容器と外
容器の上下端部をティグ溶接等によって気密に接続し、
真空二重容器を構成していた。次にこの真空二重容器を
真空炉に入れて真空排気処理を行ない、真空度が１０−
３Ｔｏｒｒ程度になったところで、前記真空炉の加熱を
開始し、前記真空二重容器を構成する内容器等の表面か
らの吸着ガスの追出しと、容器封口部分のろう付けを行
ない、この後真空炉の冷却および空気戻しを行なってい
た。そして真空炉から取り出した真空二重容器を加熱装
置にセットして、前記ゲッターを中心に高温に加熱する
ことにより、ゲッターの活性化を行なって真空空間を利
用した断熱に必要な１０ Ｔｏｒｒの真空度を実現し
ていた。BACKGROUND ART In general, the vacuum double container of this type of vacuum type electric heating pot has a getter disposed on the outer circumferential surface of the inner container or the inner circumferential surface of the outer container constituting the vacuum double container. Connect the upper and lower ends of the outer container airtightly by TIG welding, etc.
It constituted a vacuum double container. Next, this vacuum double container is placed in a vacuum furnace and subjected to vacuum evacuation treatment until the degree of vacuum reaches 10-
When the temperature reaches about 3 Torr, heating in the vacuum furnace is started, and the adsorbed gas is expelled from the surface of the inner container etc. that constitutes the vacuum double container, and the container sealing part is brazed, and then the vacuum furnace is heated. cooling and air return. Then, the vacuum double container taken out from the vacuum furnace is set in a heating device and heated to a high temperature centering on the getter, thereby activating the getter and creating a vacuum of 10 Torr, which is necessary for heat insulation using the vacuum space. degree was achieved.
発明が解決しようとする問題点
しかしながら上記従来の構成では、内容器と外容器の接
続を完全に行なっても、真空二重容器内の真空度が徐々
に低下し、断熱効果が薄れるという問題があった。これ
は、真空二重容器の材料内部や表面の凹凸部より水素ガ
スや空気が少しずつ漏れるためである。Problems to be Solved by the Invention However, in the conventional configuration described above, even if the inner container and the outer container are completely connected, the degree of vacuum inside the vacuum double container gradually decreases, and the insulation effect weakens. there were. This is because hydrogen gas and air leak little by little from inside the material of the vacuum double container or from the uneven parts on the surface.
本発明（は上記従来の問題点を解決するもので、真空高
温炉や壽母按加熱装置を用いずにゲッターを活性化し、
かつ使用中にも絶えずゲッターの活性化を行ない、常に
高真空度を維持することができて製品信頼性に優れた真
空式電気保温ポットを提供することを目的とするもので
ある。The present invention solves the above-mentioned conventional problems, and activates the getter without using a vacuum high-temperature furnace or a heating device.
The object of the present invention is to provide a vacuum type electric heat-retaining pot that constantly activates the getter even during use, can maintain a high degree of vacuum at all times, and has excellent product reliability.
間悪点を解決するだめの手段
上記目的を達成するために本発明の真空式電気保温ポッ
トは、金属製の内容器と外容器とで構成された真空二重
容器と、この真空二重容器の内容器の下部外周面に取り
付けたヒーター部とを備え、前記ヒーター部にゲッター
保持金具を設け、かつこのゲッター保持金具に固体状の
ゲッターを配設 ′し、前記ヒーター部の加熱によって
ゲッターを活性化させるようにしたものである。Means for Solving the Disadvantages of the Invention In order to achieve the above objects, the vacuum type electric heating pot of the present invention includes a vacuum double container composed of an inner container and an outer container made of metal, and a vacuum double container made of a metal inner container and an outer container. and a heater section attached to the lower outer peripheral surface of the inner container, a getter holding fitting is provided on the heater section, and a solid getter is disposed on the getter holding fitting, and the getter is heated by the heating of the heater section. It is designed to be activated.
作 用
上記構成によれば、ヒーターの通電中、すなわち真空式
電気保温ポットの使用状態で、ヒーターの加熱によって
ゲッターが活性化するため、真空二重容器の材料内部や
表面の凹凸部より発生するガスを効率よく吸収すること
ができ、その結果、いつまでも所望の断熱効果を実現す
ることができる０
実施例
以下、本発明の一実施例について図面を参照しながら説
明する。Effect According to the above configuration, when the heater is energized, that is, when the vacuum electric heat-insulating pot is in use, the getter is activated by the heating of the heater, so that the getter is generated from the inside of the material of the vacuum double container or from the irregularities on the surface. Gas can be efficiently absorbed, and as a result, a desired heat insulating effect can be achieved for a long time.Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
図において、１は真空二重容器で、この真空二重容器１
は上容器２と下容器３で内容器４と外容器６とを結合し
、そして内容器４と外容器５との間の空間６を真空処理
しているものである。またこの真空二重容器１を構成す
る内容器４等の部材は金属の中でも熱伝導の少ない例え
ば１８−８ステンレス板等を相互に母材溶接することに
より固着され、全体として有底筒状に構成されている。In the figure, 1 is a vacuum double container, and this vacuum double container 1
The inner container 4 and the outer container 6 are connected by the upper container 2 and the lower container 3, and the space 6 between the inner container 4 and the outer container 5 is vacuum-treated. In addition, the inner container 4 and other members constituting this vacuum double container 1 are fixed by welding base metals of 18-8 stainless steel plates, etc., which have low thermal conductivity among metals, and form a cylindrical shape with a bottom as a whole. It is configured.
また前記内容器４の下部外周側面にはシーズヒーター７
が装着され、ろう付は等の方法で固着されている。そし
てこのシーズヒーター了の両端子部８は前記下容器３・
を貫通し、下方に突出している。In addition, a sheathed heater 7 is provided on the outer peripheral side of the lower part of the inner container 4.
is attached and fixed by brazing or other methods. Both terminal portions 8 of this sheathed heater are connected to the lower container 3.
It penetrates and protrudes downward.
なおこの両端子部８は絶縁処理を施された上で下容器３
にろう付けで接続されている。前記シーズヒーター７の
外周側面にはゲッター保持金具９が取り付けられ、この
ゲッター保持金具９に固体状のゲッター１０が配設され
ている。前記内容器４の底部には導出管１１の一端が連
結されており、この導出管１１は下容器３を貫通し、か
つその他端を揚水管１２に連結している。またこの揚水
管１２には垂直方向に延出され、かつ透明体で構成しだ
液量表示パイプ１３が連結され、さらにこの液量表示パ
イプ１３には吐出管１４が連結されている。Note that both terminal portions 8 are insulated and attached to the lower container 3.
It is connected by brazing. A getter holding fitting 9 is attached to the outer peripheral side surface of the sheathed heater 7, and a solid getter 10 is disposed on this getter holding fitting 9. One end of a discharge pipe 11 is connected to the bottom of the inner container 4, and this discharge pipe 11 passes through the lower container 3, and the other end is connected to a pumping pipe 12. Further, a liquid volume display pipe 13 extending vertically and made of a transparent material is connected to the lift pipe 12, and a discharge pipe 14 is further connected to the liquid volume display pipe 13.
このようにして構成した真空二重容器１は上ボデー１６
と円筒状の側面ボデー１６と下ボデー１７と基板１８と
表示枠１９とで覆われ、かつ取付金具２ｏおよびパツキ
ン２１を介して保持されている。前記表示枠１９の一部
には、前記液量表示パイプ１３に相対向する位置に透明
なカバー２２が嵌着されており、このカバー２２を介し
て液量表示パイプ１３で内容器４内の液体の量が外部よ
り確認できるようになっている。The vacuum double container 1 constructed in this way has an upper body 16
It is covered with a cylindrical side body 16, a lower body 17, a substrate 18, and a display frame 19, and is held via a mounting bracket 2o and a packing 21. A transparent cover 22 is fitted to a part of the display frame 19 at a position opposite to the liquid volume display pipe 13 . The amount of liquid can be checked from the outside.
また前記真空二重容器１の上部開口部２３は注水と内容
器４の清掃を容易にするために、清掃用具あるいは手が
容易に入るように少なくとも直径をａｏｍ以上としてい
る。またこの上部開口部２３には、上ボデー１６に係止
した蓋２４の下カバー２６に固着された椀状の蓋カバー
２６が設けられており、この蓋カバー２６と下カバー２
５との間の空間には断熱層２７が形成されている。前記
蓋カバー２６は、蓋２４がピン２８を回動支点として開
いたとき、上部開口部２３に当らないように上部開口部
２３に嵌合され、かつその先端部はできるだけ断熱層２
７を厚くするために内容器４側へ垂下させている。また
この蓋カバー２６の中心には内容器４内の空間に連絡さ
れた注気管２９があり、この注気管２っけベローズ式エ
アポンプ（転）に連通している。Further, the upper opening 23 of the vacuum double container 1 has a diameter of at least aom or more so that a cleaning tool or a hand can easily enter therein in order to facilitate water injection and cleaning of the inner container 4. Further, this upper opening 23 is provided with a bowl-shaped lid cover 26 that is fixed to a lower cover 26 of a lid 24 that is locked to the upper body 16.
A heat insulating layer 27 is formed in the space between 5 and 5. The lid cover 26 is fitted into the upper opening 23 so as not to hit the upper opening 23 when the lid 24 is opened with the pin 28 as a rotational fulcrum, and its tip is as close to the heat insulating layer 2 as possible.
7 is made to hang down toward the inner container 4 side to make it thicker. Further, in the center of the lid cover 26, there is an air injection pipe 29 that communicates with the space inside the inner container 4, and this air injection pipe communicates with a two-piece bellows type air pump.
上記構成において、真空二重容器１はその製造工程にお
いてゲッター１０の活性化工程をなくしているため、シ
ーズヒーター７等のろう付は部分が活性化工程により剥
離するといった問題はなくなり、その結果、製品の信頼
性ならびに生産性を向上させることができる。なお、ゲ
ッター１０は、シーズヒーター７に通電されて加熱が行
なわれるときに活性化が行なわれるもので、すなわち、
装置の使用時にゲッター１０の活性化が行なわれて真空
二重容器１内の空間６に発生した水素ガス等の吸収除去
を行なって、前記空間６の真空度を１０−’ Ｔｏｒｒ
程度の高真空度に維持するもので、これにより、断熱効
果が劣化することはない。In the above configuration, since the vacuum double container 1 eliminates the activation process of the getter 10 in its manufacturing process, there is no problem that parts of the sheathed heater 7 etc. will peel off due to the activation process, and as a result, Product reliability and productivity can be improved. Note that the getter 10 is activated when the sheathed heater 7 is energized and heated, that is,
When the device is used, the getter 10 is activated and absorbs and removes hydrogen gas generated in the space 6 inside the vacuum double container 1, thereby raising the degree of vacuum in the space 6 to 10-' Torr.
The vacuum is maintained at a reasonably high degree of vacuum, so that the insulation effect does not deteriorate.
なお、本実施例ではシーズヒーター７を内容器４の下部
外周側面に配設した場合について説明したが、シーズヒ
ータ７を内容器４の底部裏面に設けても良いし、また他
の加熱装置を配設してもよいものである。In this embodiment, a case has been described in which the sheathed heater 7 is disposed on the outer peripheral side surface of the lower part of the inner container 4, but the sheathed heater 7 may be provided on the bottom back surface of the inner container 4, or other heating devices may be used. It may be provided.
発明の効果
上記実施例の説明から明らかなように本発明によれば、
真空二重容器の内容器の下部外周面に取り付けたヒータ
ー部に、ゲッター保持金具を設け、このゲッター保持金
具にゲッターを配設すること１によって、ヒーター部に
通電されて加熱が行なわれている状態、すなわち真空式
電気保温ポットの使用時にゲッターの活性化が行なわれ
るようにしているため、真空二重容器の製造工程時にゲ
ッターの活性化工程を設ける必要はなくなり、その結果
、真空二重容器のろう付は部分の活性化工程にともなう
加熱による剥離が発生するということはないため、製造
工程の歩留りおよび生産性を向上させることができる。Effects of the Invention As is clear from the description of the above embodiments, according to the present invention,
A getter holding fitting is provided on the heater section attached to the lower outer peripheral surface of the inner container of the vacuum double container, and by disposing the getter on the getter holding fitting 1, electricity is applied to the heater section and heating is performed. Since the getter is activated when the vacuum electric heating pot is used, there is no need to provide a getter activation process during the manufacturing process of the vacuum double container. Since brazing does not cause peeling due to heating during the activation process of the parts, the yield and productivity of the manufacturing process can be improved.
また真空式電気保温ポットを使用するたびにゲッターの
活性化が行なわれるため、真空二重容器内の真空度は常
に高く維持でき、その結果、断熱効果が劣化することは
ないため、製品の信頼性は向上し、かつ製品寿命も伸び
るものである。In addition, since the getter is activated every time the vacuum electric heating pot is used, the degree of vacuum inside the vacuum double container can always be maintained at a high level, and as a result, the insulation effect does not deteriorate, making the product reliable. This improves performance and extends product life.
図面は本発明の一実施例を示す真空式電気保温ポットの
縦断面図である。
１・−・・・・真空二重容器、４・・・・・・内容器、
５・・・・・・外容器、７・・・・・・シーズヒーター
（ヒーター部）、９・・・・・・ゲッター保持金具、１
０・・・・・・ゲッター。The drawing is a longitudinal cross-sectional view of a vacuum type electric heat-retaining pot showing an embodiment of the present invention. 1.--.Double vacuum container, 4.--Inner container,
5...Outer container, 7...Sheathed heater (heater part), 9...Getter holding fitting, 1
0...Getter.
Claims (1)
、この真空二重容器の内容器の下部外周面に取り付けた
ヒーター部とを備え、前記ヒーター部にゲッター保持金
具を設け、かつこのゲッター保持金具に固体状のゲッタ
ーを配設し、前記ヒーター部の加熱によってゲッターを
活性化させるようにした真空式電気保温ポット。A vacuum double container composed of an inner container and an outer container made of metal, and a heater section attached to the lower outer peripheral surface of the inner container of the vacuum double container, and a getter holding fitting is provided on the heater section, and a vacuum type electric heat-insulating pot, in which a solid getter is disposed on the getter holding metal fitting, and the getter is activated by heating from the heater section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25401386A JPS63105715A (en) | 1986-10-24 | 1986-10-24 | Vacuum electric heat-insulating pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25401386A JPS63105715A (en) | 1986-10-24 | 1986-10-24 | Vacuum electric heat-insulating pot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63105715A true JPS63105715A (en) | 1988-05-11 |
Family
ID=17259044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25401386A Pending JPS63105715A (en) | 1986-10-24 | 1986-10-24 | Vacuum electric heat-insulating pot |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63105715A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8852524B2 (en) | 2010-01-12 | 2014-10-07 | Bio-Rad Laboratories, Inc. | Cell counting slide with lateral reservoir for promoting uniform cell distribution |
-
1986
- 1986-10-24 JP JP25401386A patent/JPS63105715A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8852524B2 (en) | 2010-01-12 | 2014-10-07 | Bio-Rad Laboratories, Inc. | Cell counting slide with lateral reservoir for promoting uniform cell distribution |
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