CN219224016U

CN219224016U - Monocrystalline silicon protection type pressure sensor

Info

Publication number: CN219224016U
Application number: CN202222923147.0U
Authority: CN
Inventors: 宋礼明; 童辉; 周鹏; 朱成伟; 陈修
Original assignee: Nanjing Precision Sensor Technology Co ltd
Current assignee: Nanjing Precision Sensor Technology Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-06-20
Anticipated expiration: 2032-11-03

Abstract

The utility model discloses a monocrystalline silicon protection type pressure sensor which comprises a pressure sensor body, a protection component and a mounting component, wherein the protection component and the mounting component are mounted at the outer end of the pressure sensor body, and the protection component comprises a first protection frame and a second protection frame which are symmetrically mounted on two sides of the pressure sensor body. According to the monocrystalline silicon protection type pressure sensor, the first protection frame and the second protection frame which are fixedly arranged on two sides of the pressure sensor body can protect the outer part of the pressure sensor body through the protection plate arranged between the first protection frame and the second protection frame and the air bag adhered to the inner side of the protection plate, so that the impact and collision on the outer part of the pressure sensor body are reduced, the protection performance of the pressure sensor body is improved, the notch and the clamping block which are arranged in the inner and outer parts of the first protection frame and the second protection frame in a clamping mode are convenient to install on the outer part of the pressure sensor body, and the pressure sensor body is convenient and rapid to install.

Description

Monocrystalline silicon protection type pressure sensor

Technical Field

The utility model relates to the technical field of pressure sensors, in particular to a monocrystalline silicon protection type pressure sensor.

Background

As is well known, a single crystal silicon protection type pressure sensor is an auxiliary device for measuring pressure, and is widely used in the field of sensors, and the pressure sensor is a mechanical property detection device for measuring the pressure of fluid such as liquid, gas or steam, converting the measured pressure physical quantity into an electric signal to be output, amplifying, compensating and conditioning the electric signal by a circuit, and converting the electric signal into a standard current signal to be output so as to meet the requirements of information transmission, processing, storage, display, recording, control and the like.

The existing monocrystalline silicon protection type pressure sensor, such as a monocrystalline silicon high-overpressure protection type pressure sensor disclosed in publication No. CN209961389U, solves the problem that the sensor is damaged due to dew condensation or corrosive environment influence, but the outside of the pressure sensor is not provided with a protection device, so that the pressure sensor is easy to damage when suffering from impact and collision, and therefore, the monocrystalline silicon protection type pressure sensor is provided.

Disclosure of Invention

The utility model mainly aims to provide a monocrystalline silicon protection type pressure sensor which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a monocrystalline silicon protection type pressure sensor, includes pressure sensor body, protection subassembly and installation component install in the outer end of pressure sensor body, protection subassembly includes first protection frame and the second protection frame of pressure sensor body bilateral symmetry installation to and the opening spout that runs through the seting up is arranged to upper and lower extreme of first protection frame and second protection frame, protection subassembly still includes fixed mounting's fixed column in the opening spout, and movable mounting's guard plate between first protection frame and the second protection frame of fixed column upper end.

Preferably, the protection plates are of arc plate-shaped structures, and the number of the protection plates is a plurality of groups.

Preferably, the protection assembly further comprises an air bag which is stuck and installed on the inner side of the protection plate, and the air bag is also of an arc plate-shaped structure.

Preferably, the protection assembly further comprises a spring sleeved outside the inner side of the fixing column at the upper end and the lower end of the first protection frame and the second protection frame.

Preferably, the mounting assembly comprises notches formed in one side of the upper end and the lower end of the first protection frame and the second protection frame, and clamping blocks which are welded at the centers of the upper end and the lower end of the first protection frame and the second protection frame and matched with the notches.

Preferably, the mounting assembly further comprises a mounting hole formed by penetrating the notch and the upper end and the lower end of the clamping block, and a threaded hole formed in the corresponding position of the two sides of the upper end and the lower end of the pressure sensor body and the mounting hole, and the mounting assembly further comprises a mounting hole and a socket head cap screw internally mounted in the threaded hole and used for fixing the first protection frame and the second protection frame to the outer end of the pressure sensor body.

Compared with the prior art, the utility model has the following beneficial effects:

1. the first protective frame and the second protective frame are fixedly arranged on two sides of the pressure sensor body, and the outside of the pressure sensor body is protected through a protective plate arranged between the first protective frame and the second protective frame and an air bag stuck on the inner side of the protective plate, so that the impact and the collision on the outside of the pressure sensor body are reduced, and the protective performance of the pressure sensor is improved;

2. the utility model provides a monocrystalline silicon protection type pressure sensor, notch and fixture block that outside block set up in first protection frame and the second protection frame also can be convenient for first protection frame and the outside installation of second protection frame at pressure sensor body, and then makes its installation have simple and convenient swiftly.

Drawings

FIG. 1 is a schematic diagram showing the overall structure of a single crystal silicon protective pressure sensor according to the present utility model;

FIG. 2 is a split view of a single crystal silicon protected pressure sensor according to the present utility model;

FIG. 3 is an enlarged view of A in FIG. 2 of a single crystal silicon protected pressure sensor according to the present utility model;

fig. 4 is an enlarged view of B in fig. 2 of a single crystal silicon protective pressure sensor according to the present utility model.

Reference numerals:

100. a pressure sensor body;

200. a protective assembly; 210. a first protection frame; 220. a second protective frame; 230. an opening chute; 240. fixing the column; 250. a protection plate; 260. an air bag; 270. a spring;

300. a mounting assembly; 310. a notch; 320. a clamping block; 330. a mounting hole; 340. a threaded hole; 350. an inner hexagon screw.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Embodiment one:

as shown in fig. 1-3, this embodiment provides a monocrystalline silicon protection type pressure sensor, including a pressure sensor body 100, a protection component 200 and a mounting component 300, the protection component 200 and the mounting component 300 are mounted at the outer end of the pressure sensor body 100, the protection component 200 includes a first protection frame 210 and a second protection frame 220 symmetrically mounted at two sides of the pressure sensor body 100, and an open sliding slot 230 formed by arranging and penetrating the upper end and the lower end of the first protection frame 210 and the second protection frame 220, the protection component 200 further includes a fixed column 240 fixedly mounted in the open sliding slot 230, and a protection plate 250 movably mounted between the first protection frame 210 and the second protection frame 220 at the upper end of the fixed column 240, the protection plate 250 is in a circular arc plate structure, the number of the protection plates 250 is a plurality of groups, the protection component 200 further includes an air bag 260 mounted by pasting at the inner side of the protection plate 250, and the air bag 260 is also in a circular arc plate structure, and the protection component 200 further includes a spring 270 sleeved at the inner side of the fixed column 240 at the upper end and lower end of the first protection frame 210 and the second protection frame 220.

Specifically, the first protection frame 210 and the second protection frame 220 fixedly installed at both sides of the pressure sensor body 100 can pass through the protection plate 250 installed therebetween and the air bag 260 adhered to the inner side of the protection plate 250, so that the protection plate 250 and the air bag 260 can preferentially absorb the impact force of the collision when the outside of the pressure sensor body 100 is impacted and collided, the impact and the collision of external force are avoided, the pressure sensor body 100 is damaged, and the protection performance of the pressure sensor body 100 is improved.

Embodiment two:

on the basis of the first embodiment, as shown in fig. 3-4, the mounting assembly 300 includes a recess 310 formed at one side of the upper and lower ends of the first and

second protection frames

210 and 220, and a fixture block 320 welded at the center of the upper and lower ends of the first and

second protection frames

210 and 220 and matched with the recess 310, the mounting assembly 300 further includes a mounting hole 330 formed through the recess 310 and the upper and lower ends of the fixture block 320, and a threaded hole 340 formed at both sides of the upper and lower ends of the pressure sensor body 100 and corresponding to the mounting hole 330, and the mounting assembly 300 further includes a mounting hole 330 and an hexagon socket head cap screw 350 mounted in the threaded hole 340 to fix the first and

second protection frames

210 and 220 to the outer end of the pressure sensor body 100.

Specifically, the notch 310 and the clamping block 320 that the inner and outer clamping of the first protection frame 210 and the second protection frame 220 are arranged can also facilitate the quick clamping and fixing installation of the first protection frame 210 and the second protection frame 220 on the two sides of the outer portion of the pressure sensor body 100, so that the installation of the first protection frame 210 and the second protection frame 220 is simple, convenient and quick.

The working principle and the using flow of the utility model are as follows:

when the protection assembly 200 is installed, the first protection frame 210 and the second protection frame 220 are respectively installed on two sides of the pressure sensor body 100, the clamping blocks 320 at the upper end and the lower end of the first protection frame 210 and the second protection frame 220 are moved and matched to the inside of the notch 310, after the first protection frame 210 and the second protection frame 220 at the outer end of the pressure sensor body 100 are mutually clamped, the first protection frame 210 and the second protection frame 220 after clamping are fixedly installed at the outer end of the pressure sensor body 100 through the socket head cap screws 350, so that the installation of the protection assembly 200 is completed, when the pressure sensor body 100 is impacted or impacted by external force, the external force firstly impacts the protection plate 250 between the first protection frame 210 and the second protection frame 220, after the protection plate 250 is impacted, the protection plate 250 moves inwards along the fixed column 240 in the opening chute 230, the spring 270 at the upper end of the protection plate 250 is compressed, after the protection plate 250 moves inwards, the air bags 260 at the inner side of the protection plate 250 are contacted with the inner wall of the pressure sensor body 100, and the impact of the protection plate 250 is gradually absorbed along with the continuous internal movement of the protection plate 250, the impact of the protection plate body is avoided, the pressure sensor body is directly impacted by the protection assembly 100, and the pressure sensor assembly is prevented from being directly impacted by the pressure sensor body 100, and the service life of the protection assembly is further prolonged, and the protection assembly is protected, and the pressure sensor assembly is protected.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. The utility model provides a monocrystalline silicon protection type pressure sensor, includes pressure sensor body (100), protection subassembly (200) and installation component (300), protection subassembly (200) are installed in the outer end of pressure sensor body (100) with installation component (300), a serial communication port, protection subassembly (200) are including first protection frame (210) and second protection frame (220) of pressure sensor body (100) bilateral symmetry installation to and opening spout (230) that run through the seting up are arranged to the upper and lower extreme of first protection frame (210) and second protection frame (220), protection subassembly (200) still include fixed column (240) of fixed mounting in opening spout (230), and movable mounting's guard plate (250) between first protection frame (210) and second protection frame (220) of fixed column (240) upper end.

2. The monocrystalline silicon protective pressure sensor of claim 1, characterized in that the guard plates (250) are of circular arc plate-shaped structure, and the number of guard plates (250) is several groups.

3. The monocrystalline silicon protective pressure sensor of claim 1, wherein the protective assembly (200) further comprises an air bag (260) mounted on the inner side of the protective plate (250), and the air bag (260) is also in a circular arc plate structure.

4. The monocrystalline silicon protection pressure sensor of claim 1, the protection assembly (200) further comprising a first protection frame (210) and a second protection frame (220), wherein the upper and lower ends of the first protection frame (210) are fixedly sleeved with springs (270) inside and outside the posts (240).

5. The monocrystalline silicon protection pressure sensor of claim 1, wherein the mounting assembly (300) comprises a first protection frame (210) and a second protection frame (220), notches (310) are formed in one side of the upper and lower ends of the first protection frame, and clamping blocks (320) which are welded at the centers of the upper and lower ends of the first protection frame (210) and the second protection frame (220) and are matched with the notches (310).

6. The monocrystalline silicon protection type pressure sensor of claim 1, wherein the mounting assembly (300) further comprises a mounting hole (330) formed by penetrating the notch (310) and the upper end and the lower end of the clamping block (320), and threaded holes (340) formed at positions corresponding to the mounting hole (330) on two sides of the upper end and the lower end of the pressure sensor body (100), and the mounting assembly (300) further comprises a mounting hole (330) and an inner hexagon screw (350) internally mounted with the threaded holes (340) for fixing the first protection frame (210) and the second protection frame (220) on the outer end of the pressure sensor body (100).