CN1032086C - Integrally packaged electromagnetic flow transducer and its producing method - Google Patents
Integrally packaged electromagnetic flow transducer and its producing method Download PDFInfo
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- CN1032086C CN1032086C CN 93106604 CN93106604A CN1032086C CN 1032086 C CN1032086 C CN 1032086C CN 93106604 CN93106604 CN 93106604 CN 93106604 A CN93106604 A CN 93106604A CN 1032086 C CN1032086 C CN 1032086C
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- electrode
- signal terminal
- electromagnetic flow
- flow transducer
- field coil
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Abstract
The present invention relates to an integrally packaged electromagnetic flow transducer and a manufacturing method thereof. In the electromagnetic flow transducer, an exciting coil (1), a pole shoe (6), an iron core (7), an electrode (8), etc. are integrally packaged to be a certain shape by insulating materials. The packaged body is provided with a passage and the electrode, wherein liquid can flow across the packaged body. The electrode is attached to the wall of the passage. The ideal electromagnetic flow transducer with the structure integrally packs critical components, effectively solves the problems of the leakage of the electrode, moistureproof performance, etc., omits a shell and an outer cover, has the advantages of simple structure and simple manufacturing technology, and realizes a plug-in electromagnetic flowmeter.
Description
The present invention relates to electromagnetic flow transmitter, a kind of integrally packaged electromagnetic flow transducer and manufacture method thereof.
Existing electromagnetic flow transmitter is made up of parts such as field coil, electrode, iron core, pole shoes.These parts are fixed on the Stainless Steel Shell, and the non-conductive lining of liner, coil are covered by outer cover, in case the principal vertical line bag is damaged or protection against the tide.The electromagnetic flow transmitter of this structure reaches withstand voltage, moisture resistance for making, make complex structure, volume is big, cost is high.Particularly the sealed against leakage of electrode, problem such as withstand voltage can not get thorough solution.
The object of the invention is to provide the electromagnetic flow transmitter and the manufacture method thereof of the novel structure of a kind of simple in structure, sealing, good insulating.
Technical solution of the present invention is the component parts with electromagnetic flow transmitter, and promptly usefulness insulating material overall package such as field coil, iron core, pole shoe become definite shape, and this packaging body has allows the passage of flow of liquid warp, and electrodes is on conduit wall.This structure is with the critical component overall package, insulativity, good airproof performance solve problems such as transmitter electromagnetic component seepage, protection against the tide effectively, and omit the housing and the outer cover of existing electromagnetic flow transmitter, simplified structure and manufacture craft ， And and make inserted electromagnet flow meter become possibility.
Below in conjunction with embodiment and accompanying drawing thereof technology contents of the present invention is further described.
Fig. 1 is the structural representation of an embodiment of integrally packaged electromagnetic flow transducer of the present invention.
Fig. 2 is A-A view of Fig. 1.
The electromagnetic component of integrally packaged electromagnetic flow transducer of the present invention can be fixed on the support, also can adopt twice pressure injection (casting) encapsulation to solve without support.The embodiment that Fig. 1 provides is standoff.
By figure, field coil (1), pole shoe (6), iron core (7), electrode (8) are installed on the support (2), support (2) is the diamagnetism material, for example stainless steel, copper, plastics etc., each parts insulating material is as overall package such as epoxy resin, thermosetting plastics, thermoplastics, rubber, excitation signal terminal (4), electrode signal terminal (5) stretch out outside the packaging body, electrode (8) can be a plurality of, decide on use occasion, and present embodiment is two.The metal insert of (3) among Fig. 1 is this embodiment auxiliary member.
The following describes two kinds of method for makings that support and unsupported integrally packaged electromagnetic flow transducer are arranged.
First method: the forming process that has the integrally packaged electromagnetic flow transducer of support:
1. excitation signal terminal, electrode signal terminal and support are welded together.
2. field coil, pole shoe, iron core, electrode is rack-mount, and field coil, electrode are connected with excitation signal terminal, electrode signal terminal respectively.
3. be the strong point with excitation signal terminal, electrode signal terminal, be installed in the die cavity.
4. in injection machine or die casting machine, use insulating material pressure injection (casting) moulding such as epoxy resin, thermosetting plastics, thermoplastics, rubber, promptly get the overall package body.Conditions such as the temperature of encapsulating material, pressure are undertaken by the moulding rules of the material of each use in the overall package process.
Second method: the forming process of unsupported integrally packaged electromagnetic flow transducer:
1. award magnetic signal terminal, electrode signal terminal, field coil, pole shoe, iron core electrode are fixed in the die cavity with the location fulcrum, and field coil, electrode are connected with excitation signal terminal, electrode signal terminal respectively.
2. carry out moulding first time with the insulating material in the method 1 roughly the same in injection machine or die casting machine, moulding this time reaches fixing of each parts relative position.Sealing may not reach requirement, also should descend operation.
3. the one-shot forming body is placed on and carries out the pressure injection second time (casting) in the die cavity, on the one-shot forming body, coat the complete sealing of one deck, insulativity, clad that resistance to pressure is good.
Above-mentioned twice moulding material therefor can be one or both different materials, decides on requirement.
Claims (4)
1. integrally packaged electromagnetic flow transducer, comprise field coil (1), pole shoe (6), iron core (7), electrode (8), it is characterized in that above-mentioned each parts become definite shape with the insulating material overall package, this packaging body has allows the passage of flow of liquid warp, electrodes is on conduit wall, and excitation signal terminal (4), electrode signal terminal (5) stretch out outside the packaging body.
2. integrally packaged electromagnetic flow transducer according to claim 1 is characterized in that packaging body has diamagnetism support (2), and field coil (1), pole shoe (6), iron core (7), electrode (8) are rack-mount.
3. the method for making of integrally packaged electromagnetic flow transducer according to claim 1 is characterized in that:
(1), excitation signal terminal, electrode signal terminal, field coil, pole shoe, iron core, electrode are fixed in the die cavity with the location fulcrum, field coil, electrode divide in addition and connect with excitation signal terminal, electrode signal terminal,
(2), in injection machine or die casting machine, carry out the moulding first time, with insulating material
(3), the one-shot forming body is placed on carries out the pressure injection second time in the die cavity, on the one-shot forming body, coat one deck complete, sealing, insulativity, clad that resistance to pressure is good.
4. the method for making of integrally packaged electromagnetic flow transducer according to claim 3 is characterized in that electromagnetic component is fixed on the support, is installed in the mould to encapsulate, and comprising:
(1), excitation signal terminal, electrode signal terminal and support are welded together,
(2), field coil, pole shoe, iron core, electrode is rack-mount, field coil, electrode are connected with excitation signal terminal, electrode signal terminal respectively,
(3), be the strong point with excitation signal terminal, electrode signal terminal, be installed in the die cavity,
(4), in injection machine or die casting machine, use the insulating material injection-compression molding, the overall package body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93106604 CN1032086C (en) | 1993-06-04 | 1993-06-04 | Integrally packaged electromagnetic flow transducer and its producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93106604 CN1032086C (en) | 1993-06-04 | 1993-06-04 | Integrally packaged electromagnetic flow transducer and its producing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1085657A CN1085657A (en) | 1994-04-20 |
| CN1032086C true CN1032086C (en) | 1996-06-19 |
Family
ID=4986320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93106604 Expired - Fee Related CN1032086C (en) | 1993-06-04 | 1993-06-04 | Integrally packaged electromagnetic flow transducer and its producing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032086C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010042832B4 (en) * | 2010-10-22 | 2016-11-10 | Endress+Hauser Conducta Gmbh+Co. Kg | Method for producing an inductive sensor |
| CN102680033B (en) * | 2011-03-10 | 2014-04-23 | 上海威尔泰仪器仪表有限公司 | Method for manufacturing electrode member of electromagnetic flowmeter sensor |
-
1993
- 1993-06-04 CN CN 93106604 patent/CN1032086C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1085657A (en) | 1994-04-20 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |