Sanitary pressure sensitive element
The utility model discloses a sanitary pressure sensitive element. The sanitary pressure sensitive element is characterized in that a membrane is welded on a DN25 chuck; the heat dissipation mechanism is welded with the DN25 chuck; the base is welded with the heat dissipation mechanism; a chip is ad...
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| Hauptverfasser: | , , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses a sanitary pressure sensitive element. The sanitary pressure sensitive element is characterized in that a membrane is welded on a DN25 chuck; the heat dissipation mechanism is welded with the DN25 chuck; the base is welded with the heat dissipation mechanism; a chip is adhered to the bottom of the insulating cover; the insulating cover is adhered to the base; an oil filling hole is formed in the base and used for leading in filling liquid; the oil filling hole is hermetically connected with the sealing piece; the base is formed by sintering a stainless steel shell, glass and a gold-plated Kovar tube leg; the gold-plated Kovar tube leg is welded on the compensation circuit board; the gold-plated Kovar tube leg is connected with the chip through a gold wire and is used for transmitting a pressure signal; and the filling liquid is respectively filled into a gap between the base and the heat dissipation mechanism and a gap between the heat dissipation mechanism and the DN25 chuck. Acco |
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