JPH0249546Y2 - - Google Patents
Info
- Publication number
- JPH0249546Y2 JPH0249546Y2 JP10594079U JP10594079U JPH0249546Y2 JP H0249546 Y2 JPH0249546 Y2 JP H0249546Y2 JP 10594079 U JP10594079 U JP 10594079U JP 10594079 U JP10594079 U JP 10594079U JP H0249546 Y2 JPH0249546 Y2 JP H0249546Y2
- Authority
- JP
- Japan
- Prior art keywords
- electronic
- flow rate
- casing
- liquid volume
- volume meter
- 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.)
- Expired
Links
- 239000007788 liquid Substances 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 3
- 238000006243 chemical reaction Methods 0.000 claims 2
- 238000005476 soldering Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
- Details Of Flowmeters (AREA)
Description
【考案の詳細な説明】 この考案は電子式液量メータに関する。[Detailed explanation of the idea] This invention relates to an electronic liquid meter.
周知の如く、積算式液量メータは、土中に埋設
して用いられるため、メータ構成部品は湿度に対
して十分耐える必要がる。このことは、電子式積
算式に対しても同様である。このため、電子式メ
ータの電気部品収容部分を必然的に密閉構造にす
る必要がある。この場合、気密度（リークレー
ト）としては１×10-11c.c.／sec以上が要求され
る。 As is well known, since integrating liquid flow meters are used by being buried in the ground, the meter components must be sufficiently resistant to humidity. This also applies to the electronic integration type. For this reason, it is necessary that the electrical component accommodating portion of the electronic meter necessarily have a sealed structure. In this case, an airtightness (leak rate) of 1×10 −11 cc/sec or more is required.
一般に、電子機器の密閉構造にはオーリング
（Ｏリング）による方法や電気溶接または半田付
けによる方法が用いられるが、前者によると、構
造の大型化を招きかつ長期間に亘つて安定な気密
性が得られず、後者によると、溶接工事又は、半
田付け工事の際の温度上昇により筐体内部に内蔵
した電子部品が破壊される等の欠点点がある。 Generally, methods using O-rings, electric welding, or soldering are used to seal the structure of electronic devices, but the former results in an increase in the size of the structure and does not provide stable airtightness over a long period of time. According to the latter method, there are disadvantages such as electronic components built into the housing being destroyed due to temperature rise during welding or soldering work.
本考案の目的は、上記述欠点を除去した電子積
算式液量メータを提供することにある。 An object of the present invention is to provide an electronic integrating liquid meter that eliminates the above-mentioned drawbacks.
本考案では、電子回路を内蔵する筐体ケースを
非磁性体材料で構成し、しかもこの筐体ケースを
冷間圧接工法によつて密閉している。 In the present invention, the housing case containing the electronic circuit is constructed from a non-magnetic material, and the housing case is hermetically sealed using a cold pressure welding method.
次に本考案を図面を用いて詳細に説明する。第
１図は、本考案の実施例を示す断面図である。図
において、電子部を収納する非磁性体円筒状筐体
２は、フランジ３を有する上部ケース４とフラン
ジ５を有する下部ケース６とから構成されてお
り、これらのケース４，６は重ね合わせたフラン
ジ部３，５に冷間圧接により単位面積当り約165
Kg／mm2の力を加えることによつて融着固定されて
いる。この様に構成された筐体２は、液量メータ
本体の凹部７に挿入され筐体２のフランジ部３，
５をパツキン８，９を介して挟みこんで液量メー
タ本体に取り付けられる。 Next, the present invention will be explained in detail using the drawings. FIG. 1 is a sectional view showing an embodiment of the present invention. In the figure, a non-magnetic cylindrical housing 2 that houses an electronic part is composed of an upper case 4 having a flange 3 and a lower case 6 having a flange 5. These cases 4 and 6 are stacked on top of each other. Approximately 165 per unit area by cold pressure welding to flange parts 3 and 5
It is fused and fixed by applying a force of Kg/mm 2 . The casing 2 configured in this manner is inserted into the recess 7 of the liquid meter main body, and the flange 3 of the casing 2,
5 is sandwiched between gaskets 8 and 9 and attached to the liquid meter body.
なお、電子部の詳細は、特許願昭53年49507号
明細書を参照できる。 For details of the electronic section, refer to Patent Application No. 49507 of 1973.
第２図は筐体２の圧接部（破線の部分）の拡大
図である。圧接前に比べて、上下ケース４，６の
フランジ部３，５が凹状態となり、互の金属が完
全に融着されている。 FIG. 2 is an enlarged view of the press-contact portion (the part indicated by the broken line) of the housing 2. The flanges 3 and 5 of the upper and lower cases 4 and 6 are in a concave state compared to before the pressure welding, and the metals are completely fused together.
以上のように、本考案は液量メータ本体の上部
に電子回路を内蔵した密閉構造のフランジ付筐体
を圧接によつて形成しているので従来の半田付け
工事や溶接工事の際の温度上昇による電子回路の
損傷を防止出来る他、密閉に要する作業時間が極
めて短時間で行えるから、組立時の作業性の向上
および大量性産による安価な製品の供給が達成さ
れる。また、密閉容器の要求される気密度につい
ても従来方法を使用したとき以上の気密性を保て
る他、溶接やハンダ付け作業と比較して熟練作業
が要らないため、その実用的効果は大である。 As described above, the present invention uses pressure welding to form a hermetically sealed flanged housing with a built-in electronic circuit on the top of the liquid meter body. In addition to being able to prevent damage to electronic circuits due to air leakage, the work required for sealing can be done in an extremely short time, which improves work efficiency during assembly and enables the supply of inexpensive products through mass production. Furthermore, the airtightness required for airtight containers can be maintained better than when using conventional methods, and it does not require skilled work compared to welding or soldering, so it has great practical effects. .
第１図は本考案の一実施例を示す構造断面図お
よび第２図は筐体の圧接部の拡大図である。
第１図および第２図において、２……筐体、３
……上部ケースのフランジ、４……上部ケース、
５……下部ケースのフランジ、６……下部ケー
ス、７……電子計数器の取り付け部、８……上部
パツキン、９……下部パツキン、１０……永久磁
石。
FIG. 1 is a structural cross-sectional view showing one embodiment of the present invention, and FIG. 2 is an enlarged view of the press-contact portion of the casing. In FIGS. 1 and 2, 2... casing, 3
... Upper case flange, 4 ... Upper case,
5... Flange of lower case, 6... Lower case, 7... Mounting part of electronic counter, 8... Upper packing, 9... Lower packing, 10... Permanent magnet.
Claims (1)
久磁石を固定してその回転に比例する頻度で磁場
変化を発生するよう構成した液量メータ本体に前
記磁場の変化を感知して電気信号に変換する磁気
センサ部とこの磁気センサ部の出力信号を流体流
量に換算し積算する変換回路とよりなる電子部と
を収納した密閉的の筐体を組付けてなる電子積算
式流量計において、前記電子部の前記筐体を、そ
れぞれ外縁全周に形成されたフランジを有する上
部ケースと下部ケースとの２部分から構成し、前
記フランジ部を重ね合せたうえ両面から挟んで全
周に亘り連続的に冷間圧接工法により圧接すると
ともにこの圧接したフランジ部を上下にパツキン
を介して前記液量メータ本体に挟み込むことによ
り前記筐体を組み付けたことを特徴とする電子積
算式液量メータ。 A permanent magnet is fixed to a metering rotating shaft that rotates in proportion to the flow rate of the fluid, and the liquid meter body is configured to generate changes in the magnetic field at a frequency proportional to the rotation of the permanent magnet.The change in the magnetic field is sensed and converted into an electrical signal. In the electronic integrating flowmeter, the electronic integrating flowmeter is assembled with a sealed casing housing a magnetic sensor section for conversion and an electronic section consisting of a conversion circuit that converts the output signal of the magnetic sensor section into a fluid flow rate and integrates the fluid flow rate. The casing of the electronic part is composed of two parts, an upper case and a lower case, each having a flange formed around the entire outer edge, and the flange parts are overlapped and sandwiched from both sides so as to be continuous over the entire periphery. An electronic integrating liquid volume meter, characterized in that the housing is assembled by press-welding the casing to the liquid volume meter body by a cold pressure welding method and sandwiching the press-welded flange portion between the liquid volume meter main body and the upper and lower gaskets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10594079U JPH0249546Y2 (en) | 1979-07-31 | 1979-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10594079U JPH0249546Y2 (en) | 1979-07-31 | 1979-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5623415U JPS5623415U (en) | 1981-03-03 |
| JPH0249546Y2 true JPH0249546Y2 (en) | 1990-12-27 |
Family
ID=29338587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10594079U Expired JPH0249546Y2 (en) | 1979-07-31 | 1979-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0249546Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6132697U (en) * | 1984-07-30 | 1986-02-27 | サツポロ産機株式会社 | Water main insulation/protection cover |
| JPH0590092U (en) * | 1992-05-22 | 1993-12-07 | 古河電気工業株式会社 | Pipe cover |
-
1979
- 1979-07-31 JP JP10594079U patent/JPH0249546Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5623415U (en) | 1981-03-03 |
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