CN219714598U - Differential pressure integrated base - Google Patents

Abstract

The utility model discloses a differential pressure integrated base, which comprises a base body, wherein a group of electrode leads penetrating through the base body are arranged on the base body along the circumference of the base body in the axial direction, lead pins are arranged at the bottoms of the electrode leads, oil filling holes and mounting holes are respectively arranged at the tops of the base body in the axial direction, positive pressure cavity oil filling pipes are arranged in the oil filling holes in the axial direction, negative pressure cavity oil filling pipes are arranged in the mounting holes in the axial direction, a lifting block is arranged at the center of the top of the base body, and the oil filling holes and the mounting holes are all communicated with the lifting block. The utility model adopts the structure that: the heightening block arranged on the base body heightens the tops of the oil guide holes and the mounting holes, and the top of the base body is provided with the isolation groove, so that when the base body is mounted and used, if oil filled with oil leaks, the isolation groove can isolate liquid substances, the liquid substances can be isolated, and the liquid can be discharged through the oil conveying groove, so that the operation of the electrode lead and the lead pin is prevented from being influenced by liquid.

Description

Differential pressure integrated base

Technical Field

The utility model relates to the technical field of sensor bases, in particular to a differential pressure integrated base.

Background

The known differential pressure sensor is widely applied to the field of industrial automation and is used for detecting various parameters of an industrial field, in order to improve efficiency and save cost, a plurality of enterprises prefer to adopt a multi-parameter differential pressure sensor, the multi-parameter differential pressure sensor can simultaneously measure field signals such as gauge pressure, absolute pressure, temperature and the like, for example, patent application number CN201310417156.5 describes a multi-parameter silicon piezoresistive differential pressure sensor integrated base which comprises a shell, a group of lead pins penetrating through the shell are arranged on the circumference of the shell along the axial direction, an oil filling hole and a chip mounting hole are respectively arranged on the top of the shell along the axial direction, a positive pressure cavity oil filling pipe is arranged in the oil filling hole along the axial direction, and a negative pressure cavity oil filling pipe is arranged in the chip mounting hole along the axial direction; the oil guide hole, the chip mounting hole and the negative pressure cavity oil filling pipe form a negative pressure conduction cavity, so that the silicon piezoresistive sensor chip fixed above the chip mounting hole senses pressure difference, multi-parameter signals are measured, and the base shell is integrally formed, and is good in sealing performance and high in overall performance.

However, the integrated base chip of the differential pressure sensor is arranged above the mounting hole, the oil filling hole, the mounting hole and the lead pin at the top of the shell are arranged on the same plane and are not separated, and if leakage occurs during oil filling, the leakage can directly flow on the lead pin, so that the installation and the use of the differential pressure sensor are not facilitated, and the normal operation of equipment is affected.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a differential pressure integrated base for solving the problem that an oil filling hole and a lead pin are on the same plane and are easy to influence.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a differential pressure integration base, includes the base member, be equipped with a set of electrode lead wire that runs through the base member along axial circumference on the base member, electrode lead wire's bottom is provided with the pin, the top of base member is equipped with oil filling hole and mounting hole along the axial respectively, be equipped with the malleation chamber along the axial in the oil filling hole and fill oil pipe, be equipped with the negative pressure chamber along the axial in the mounting hole and fill oil pipe, the top central point of base member puts and is provided with the spacer block, fills oil hole and mounting hole all link up the spacer block, the isolation groove has been seted up at the top of base member, and the isolation groove sets up to annular, has transversely seted up the oil groove in the top edge position of base member, the oil groove communicates with each other with the isolation groove.

Preferably, a groove is formed in the bottom of the base body, a retaining plate is fixedly connected to the inside of the groove, a protruding block is fixedly connected to the terminal pin, and the protruding block is connected to the retaining plate in a sintering mode.

Preferably, the top of the matrix is in a trapezoid column shape with a thin upper part and a thick lower part.

Preferably, the electrode lead is sintered to the substrate through a glass sleeve.

In summary, the beneficial effects of the utility model are as follows:

according to the differential pressure integrated base provided by the utility model, the base body is integrally formed, the top of the oil guide hole and the top of the mounting hole are raised by the raised block arranged on the base body, and the top of the base body is provided with the isolation groove.

The second, the holding plate that sets up can consolidate the lead pin, makes the lead pin more stable to can make the electrode lead be difficult for being taken out through the protruding piece that sets up, thereby play the effect of reinforcing electrode lead and lead pin.

Drawings

FIG. 1 is a schematic view of the basic structure of the present utility model;

FIG. 2 is a cross-sectional view of FIG. 1 A-A in accordance with the present utility model.

Reference numerals: 1. a base; 2. an electrode lead; 3. a pin; 4. an oil filling hole; 5. a mounting hole; 6. a positive pressure cavity oil filling pipe; 7. a negative pressure cavity oil filling pipe; 8. a lifting block; 9. an isolation groove; 10. an oil delivery groove; 11. a groove; 12. a holding plate; 13. a protruding block; 14. a glass sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1-2, the differential pressure integrated base provided by the utility model comprises a base body 1, a group of electrode leads 2 penetrating through the base body 1 are arranged on the base body 1 along the axial circumference, lead pins 3 are arranged at the bottoms of the electrode leads 2, oil filling holes 4 and mounting holes 5 are respectively arranged at the tops of the base body 1 along the axial direction, positive-pressure cavity oil filling pipes 6 are axially arranged in the oil filling holes 4, negative-pressure cavity oil filling pipes 7 are axially arranged in the mounting holes 5, a heightening block 8 is arranged at the central position of the top of the base body 1, the oil filling holes 4 and the mounting holes 5 are all communicated with the heightening block 8, isolating grooves 9 are formed in the top of the base body 1, oil conveying grooves 10 are transversely formed in the edge positions of the top of the base body 1, and the oil conveying grooves 10 are communicated with the isolating grooves 9. The oil guide hole, the mounting hole 5 and the negative pressure cavity oil filling pipe 7 form a negative pressure conduction cavity, so that a differential pressure sensor fixed above the mounting hole 5 senses a pressure difference, a parameter signal is measured, the substrate 1 is integrally formed, the top of the oil guide hole and the mounting hole 5 is heightened by the heightening block 8 arranged on the substrate 1, the top of the substrate 1 is provided with the isolation groove 9, and when the oil filling device is mounted and used, if oil filled in the oil is leaked, the isolation groove 9 can isolate liquid substances, the liquid substances can be discharged through the oil conveying groove 10, and the liquid is prevented from influencing the operation of the electrode lead 2 and the lead foot 3.

The bottom of the base body 1 is provided with a groove 11, a holding plate 12 is fixedly connected inside the groove 11, a protruding block 13 is fixedly connected to the lead pin 3, and the protruding block 13 is connected to the holding plate 12 in a sintering mode. The recess 11 of base member 1 bottom can cooperate the circuit board of installation sensor, and the holding plate 12 of setting can consolidate lead pin 3, makes lead pin 3 more stable to can make electrode lead 2 be difficult for being taken out through protruding piece 13 that set up, thereby play the effect of reinforcing electrode lead 2 and lead pin 3.

The top of the base body 1 is in a trapezoid column shape with a thin upper part and a thick lower part. The sensor is convenient to package after being installed.

The electrode lead 2 is sintered to the base 1 via a glass sleeve 14. The glass sleeve 14 is sintered and connected in the prior art, so that the motor lead wire can be sintered and fixed, and the glass can play an insulating role.

Working principle: during the use, differential pressure sensor passes through mounting hole 5 to be installed at the top of base member 1, differential pressure sensor's pin links to each other with electrode lead 2, fill silicone oil in filling pipe 6 and oil guide hole to base member 1 through the malleation chamber, then carry out the oilhole shutoff process, the oil guide hole, mounting hole 5 and negative pressure chamber fill oil pipe 7 and form negative pressure conduction chamber, make differential pressure sensor who fixes in mounting hole 5 top sense the pressure differential, thereby measure the parameter signal, base member 1 adopts integrated into one piece, the rim up piece 8 that sets up on base member 1 is with the top rim up of oil guide hole, mounting hole 5, and the isolation groove 9 has been seted up at the top of base member 1, when installation and use, if the fluid of oiling takes place to leak, isolation groove 9 can keep apart liquid material, and can discharge through oil groove 10, the operation that has prevented that liquid from influencing electrode lead 2 and lead 3. The recess 11 of base member 1 bottom can cooperate the circuit board of installation sensor, and the holding plate 12 of setting can consolidate lead pin 3, makes lead pin 3 more stable to can make electrode lead 2 be difficult for being taken out through protruding piece 13 that set up, thereby play the effect of reinforcing electrode lead 2 and lead pin 3.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (4)

1. The utility model provides a differential pressure integration base, includes base member (1), be equipped with a set of electrode lead (2) that run through base member (1) along axial circumference on base member (1), the bottom of electrode lead (2) is provided with lead foot (3), the top of base member (1) is equipped with oil filling hole (4) and mounting hole (5) respectively along the axial, be equipped with malleation chamber along the axial in oil filling hole (4) and fill oil pipe (6), be equipped with negative pressure chamber along the axial in mounting hole (5) and fill oil pipe (7), its characterized in that: the base body (1) is provided with a heightening block (8) at the top center, oil filling holes (4) and mounting holes (5) are all communicated with the heightening block (8), isolation grooves (9) are formed in the top of the base body (1), the isolation grooves (9) are annular, oil conveying grooves (10) are transversely formed in the edge of the top of the base body (1), and the oil conveying grooves (10) are communicated with the isolation grooves (9).

2. The differential pressure integrated pedestal of claim 1, wherein: the bottom of base member (1) is provided with recess (11), the inside fixedly connected with of recess (11) keeps board (12), fixedly connected with protruding piece (13) on lead pin (3), protruding piece (13) sintering connection keeps on board (12).

3. The differential pressure integrated pedestal of claim 1, wherein: the top of the matrix (1) is in a trapezoid column shape with a thin upper part and a thick lower part.

4. The differential pressure integrated pedestal of claim 1, wherein: the electrode lead (2) is sintered on the substrate (1) through a glass sleeve (14).