CN213481611U - Oil-filled pressure sensor core body with novel structure - Google Patents

Abstract

The utility model provides an oil charge pressure sensor core of new construction, oil charge pressure sensor core bottom is equipped with the core seat, be equipped with first recess in the core seat, first recess intermediate position welding To pipe, To manage and paste pressure chip, the top welding diaphragm of oil charge pressure sensor core, the top welding clamping ring of diaphragm, the clamping ring inboard is equipped with the internal thread, be equipped with the chamber that holds of intercommunication between diaphragm and the To pipe, hold the intracavity and fill silicon oil. The core body of the oil-filled pressure sensor is a threaded joint, the connecting effect is good, the connecting strength is high, and the sensor can be installed and used without welding an installation part; the sealing effect is good through the O-shaped ring sealing of the end face of the compression ring; the oil-filled pressure sensor has the advantages of fewer parts, simpler processing technology and lower cost.

Description

Oil-filled pressure sensor core body with novel structure

Technical Field

The utility model relates to an oil charge pressure sensor core of new construction belongs to oil charge pressure sensor technical field.

Background

To oil charge pressure sensor core, current structure is more single, generally is cylindric structure, and the sealing means generally is that side-mounting O type circle is sealed, and the mounting means generally needs to weld behind screwed joint or the installation component installation, and the welding back structure is more complicated, and the sensor size is great, and the operating is more, leads to the sensor cost higher, the technology is complicated, the lower scheduling problem of efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide an oil charge pressure sensor core of new construction, concrete technical scheme is:

the utility model provides an oil charge pressure sensor core of new construction, oil charge pressure sensor core bottom is equipped with the core seat, be equipped with first recess in the core seat, first recess intermediate position welding To pipe, To pipe pastes pressure chip, the top welding diaphragm of oil charge pressure sensor core, the top welding clamping ring of diaphragm, the clamping ring inboard is equipped with the internal thread, be equipped with the chamber that holds of intercommunication between diaphragm and the To pipe, hold the intracavity and fill silicon oil.

Preferably, the top end of the pressing ring is provided with an annular second groove, and the O-shaped ring is sleeved in the second groove.

Preferably, the core holder has a hexagonal prism shape.

Preferably, the accommodating cavity is in an I shape.

The utility model has the advantages that:

1. the oil-filled pressure sensor core is a threaded joint, and has good connection effect and high connection strength. The sensor can be installed and used without welding installation parts. The thread specification of the sensor can be designed according to requirements, the size of the sensor can be designed according to requirements, and the minimum diameter can be made to be 8 mm;

2. the oil-filled pressure sensor core is sealed by the O-shaped ring on the end face of the compression ring, the sealing effect is good, the use and the assembly are convenient, the position of the O-shaped ring can be changed to the end face of the hexagonal prism, and the design structure is flexible;

3. the oil-filled pressure sensor has the advantages of fewer parts, simpler processing technology, lower cost and compatibility with various measuring ranges, various sizes and various measuring media.

Drawings

Fig. 1 is a schematic structural diagram of an oil-filled pressure sensor core body with a new structure of the present invention.

Fig. 2 is a cross-sectional view of the oil-filled pressure sensor core body with a new structure of the present invention.

In the figure: 1. an oil filled pressure sensor core; 2. a core body seat; 3. a first groove; 4. a To tube; 5. a pressure chip; 6. a membrane; 7. pressing a ring; 8. an accommodating chamber; 9. and an O-shaped ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, an oil-filled pressure sensor core with a new structure, wherein a core seat 2 is arranged at the bottom of the oil-filled pressure sensor core 1, a first groove 3 is arranged in the core seat 2, a To tube 4 is welded at the middle position of the first groove 3 through resistance welding, a pressure chip 5 is attached To the To tube 4, the pressure chip 5 is a pressure-sensitive element, a diaphragm 6 is welded at the top of the oil-filled pressure sensor core 1 through laser welding, a compression ring 7 is welded at the top end of the diaphragm 6 through laser welding, an internal thread is arranged on the inner side of the compression ring 7, a containing cavity 8 communicated with the diaphragm 6 and the To tube 4 is arranged between the diaphragm 6 and the To tube 4, and the containing cavity 8 is filled with silicone oil and serves as a pressure-conducting medium. The accommodating cavity 8 is in an I shape, the diameter of the top of the accommodating cavity corresponds To the effective area of the diaphragm 6, and the diameter of the bottom of the accommodating cavity corresponds To the diameter of the top end face of the To pipe 4.

The top of clamping ring 7 is equipped with and is annular second recess, O type circle 9 is established to second recess endotheca, oil charge pressure sensor core 1 leans on the inboard internal thread erection joint of clamping ring 7, oil charge pressure sensor core 1 is sealed by O type circle 9, and the screw specification can be designed as required, and oil charge pressure sensor core 1 size can be big or small, can do phi 8mm to the minimum. The position of the O-shaped ring 9 can be changed to the bottom end surface of the core body seat 2, and the design structure is flexible.

The core body seat 2 is in a hexagonal prism shape and used for locking a wrench in a sensor installation process, and the first groove 3 can be used for installing a circuit board.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (4)

1. The utility model provides an oil charge pressure sensor core of new construction which characterized in that: the oil charge pressure sensor core bottom is equipped with the core seat, be equipped with first recess in the core seat, first recess intermediate position welding To pipe, To pipe pastes the pressure chip, the top welding diaphragm of oil charge pressure sensor core, the top welding clamping ring of diaphragm, the clamping ring inboard is equipped with the internal thread, be equipped with the chamber that holds of intercommunication between diaphragm and the To pipe, hold the intracavity and fill silicon oil.

2. The oil-filled pressure sensor core of claim 1, wherein: the top of clamping ring is equipped with and is annular second recess, O type circle is established to second recess endotheca.

3. The oil-filled pressure sensor core of claim 1, wherein: the core seat is hexagonal prism shaped.

4. The oil-filled pressure sensor core of claim 1, wherein: the containing cavity is I-shaped.

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