CN218916661U

CN218916661U - Pressure sensor

Info

Publication number: CN218916661U
Application number: CN202223477643.4U
Authority: CN
Inventors: 尹小焕; 李鹏; 李琴
Original assignee: Bengbu Ruizhong Sensing System Engineering Co ltd
Current assignee: Bengbu Ruizhong Sensing System Engineering Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-04-25
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses a pressure sensor, which relates to the technical field of pressure sensors and comprises a shell, wherein a mounting structure is arranged in the shell, a fixing structure is arranged on the outer side of the shell, the mounting structure comprises a mounting part and a protection part, the mounting part comprises a mounting seat and a mounting assembly, the fixing structure comprises a T-shaped annular plate and a plurality of fixing parts, the shell comprises a sleeve, a first cover and a second cover are respectively arranged at two ends of the sleeve, a plurality of jacks are respectively arranged on the first cover and the second cover, the mounting seat comprises a supporting plate fixedly connected with the sleeve, a plurality of limiting cylinders are fixedly connected to the top of the supporting plate, the mounting assembly comprises a mounting plate, and a plurality of sliding rods corresponding to the limiting cylinders are fixedly connected to the bottom of the mounting plate. According to the utility model, the influence of the external stress of the shell on the pressure chip and the pressure rod can be reduced, so that the error of measurement data is reduced, the disassembly and assembly of the device are convenient, gaps between the shells can be avoided, and the sealing and waterproof effects can be realized.

Description

Pressure sensor

Technical Field

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

Background

Pressure sensors are devices or apparatuses that sense pressure signals and convert the pressure signals into usable output electrical signals according to a certain rule, and are widely used for measuring the pressure of various media, and generally include a housing, a circuit board, a pressure detection chip, a cover, and terminals.

In the conventional pressure sensor, a pressure detection chip is generally directly sealed on a metal tube shell or a plastic tube shell in a direct bonding or glass transition bonding mode, and in the split charging and using process, the pressure chip is directly connected with a shell, so that the pressure chip is easily influenced by external stress generated by external force acting on the shell, and errors occur in measured data.

Disclosure of Invention

The object of the present utility model is to provide a pressure sensor which solves the drawbacks of the prior art in the background art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a pressure sensor, includes the casing, be equipped with mounting structure in the casing, the casing outside is equipped with fixed knot and constructs, mounting structure includes installation component and protection component, installation component includes mount pad and installation component, fixed knot constructs including T type annular plate and a plurality of fixed part.

Preferably, the shell comprises a sleeve, a first cover and a second cover are respectively arranged at two ends of the sleeve, and a plurality of jacks are respectively arranged on the first cover and the second cover.

Preferably, the mounting seat comprises a supporting plate fixedly connected with the sleeve, and a plurality of limiting cylinders are fixedly connected to the top of the supporting plate.

The setting of mount pad is convenient for carry out spacing and fixed to the installation component.

Preferably, the installation component includes the mounting panel, a plurality of slide bars corresponding with spacing section of thick bamboo of mounting panel bottom fixedly connected with, the mounting panel bottom is equipped with pressure chip, be equipped with the connecting wire on the pressure chip, mounting panel top fixedly connected with pressure pole.

Preferably, the protection part comprises a fixed cylinder fixedly connected with a first cover, a protection pad is fixedly connected in the fixed cylinder, a limiting plate and a buffer pad are fixedly connected on the pressure rod, and the buffer pad is located above the limiting plate.

The arrangement of the protection component can reduce the adverse effect of the first shell on the pressure rod, and meanwhile, the tightness is improved.

Preferably, the T-shaped annular plate is provided with a plurality of grooves, two gaskets are arranged in the grooves, and the two gaskets are symmetrical.

Preferably, the fixed part comprises a push rod which is in sliding connection with the T-shaped annular plate, one end of the push rod is fixedly connected with a connecting plate, a spring is sleeved on the outer surface of the push rod, two ends of the spring are respectively fixedly connected with one side of the groove and one side of the connecting plate, and two ends of the connecting plate are respectively fixedly connected with inserted bars corresponding to the insertion holes.

The setting of fixed part is convenient for be with No. one lid and No. two lid and sleeve fixed connection.

The utility model has at least the following beneficial effects:

1. the utility model provides a pressure sensor, through the setting of protection part, mount pad and installation component, the pressure chip is not direct with the casing contact to with be equipped with the protection of protection pad and cushion between pressure pole and the lid, thereby reduce the influence of the external stress of shell to pressure chip and pressure pole, and then reduce the error of measured data.

2. A pressure sensor is provided, which is convenient for the disassembly and assembly of the device through the fixing structure, the shell and the protective component, and can avoid gaps between the shells after assembly, thus playing a role in sealing and waterproofing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a top side view of the present utility model;

FIG. 3 is a cross-sectional view of the present utility model;

FIG. 4 is a schematic view of the structure of the first cap of the present utility model;

FIG. 5 is a schematic view of a mounting structure according to the present utility model;

fig. 6 is a cross-sectional view of a fixing structure according to the present utility model.

In the figure: 1. a housing; 101. a sleeve; 102. a first cover; 103. a second cover; 104. a jack; 2. a mounting structure; 201. a mounting member; 202. a protective member; 2021. a fixed cylinder; 2022. a protective pad; 2023. a limiting plate; 2024. a cushion pad; 203. a mounting base; 2031. a support plate; 2032. a limiting cylinder; 204. a mounting assembly; 2041. a mounting plate; 2042. a slide bar; 2043. a pressure chip; 2044. a pressure rod; 2045. a connecting wire; 3. a fixed structure; 301. a T-shaped annular plate; 3011. a groove; 3012. a gasket; 302. a fixing member; 3021. a push rod; 3022. a spring; 3023. a connecting plate; 3024. and a plunger.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 6, a pressure sensor comprises a housing 1, wherein a mounting structure 2 is arranged in the housing 1, a fixing structure 3 is arranged on the outer side of the housing 1, the mounting structure 2 comprises a mounting part 201 and a protection part 202, the mounting part 201 comprises a mounting seat 203 and a mounting assembly 204, and the fixing structure 3 comprises a T-shaped annular plate 301 and a plurality of fixing parts 302.

The shell 1 comprises a sleeve 101, a first cover 102 and a second cover 103 are respectively arranged at two ends of the sleeve 101, and a plurality of jacks 104 are respectively arranged on the first cover 102 and the second cover 103.

The mounting base 203 comprises a supporting plate 2031 fixedly connected with the sleeve 101, and a plurality of limiting cylinders 2032 are fixedly connected to the top of the supporting plate 2031.

The mounting assembly 204 includes a mounting plate 2041, a plurality of sliding rods 2042 corresponding to the limiting cylinders 2032 are fixedly connected to the bottom of the mounting plate 2041, a pressure chip 2043 is disposed at the bottom of the mounting plate 2041, the pressure chip 2043 is integrated with a circuit board, the pressure chip 2043 is disposed on the circuit board, the circuit board is not labeled in the drawing, the pressure chip 2043 is a prior art, a connection line 2045 is disposed on the pressure chip 2043, and a pressure rod 2044 is fixedly connected to the top of the mounting plate 2041.

The protection component 202 comprises a fixed cylinder 2021 fixedly connected with the first cover 102, a protection pad 2022 is fixedly connected in the fixed cylinder 2021, a limiting plate 2023 and a buffer pad 2024 are fixedly connected on the pressure rod 2044, and the buffer pad 2024 is positioned above the limiting plate 2023.

The T-shaped annular plate 301 is provided with a plurality of grooves 3011, two gaskets 3012 are arranged in the grooves 3011, and the two gaskets 3012 are symmetrical.

The fixing part 302 includes a push rod 3021 slidably connected with the T-shaped annular plate 301, one end of the push rod 3021 penetrates through the T-shaped annular plate 301 and extends to a part, one end of the push rod 3021 is fixedly connected with a connecting plate 3023, a spring 3022 is sleeved on the outer surface of the push rod 3021, two ends of the spring 3022 are fixedly connected with one side of the groove 3011 and one side of the connecting plate 3023 respectively, and two ends of the connecting plate 3023 are fixedly connected with inserting rods 3024 corresponding to the insertion holes 104.

When the mounting plate 2041 is aligned with the support plate 2031 and the slide bar 2042 is inserted into the sleeve 101, then the first cover 102 and the second cover 103 are taken out, the fixing cylinder 2021 on the first cover 102 is aligned with the pressure bar 2044 and inserted, then the second cover 103 is aligned with the connecting wire, and then the connecting wire passes through the second cover 103, at the same time, one ends of the first cover 102 and the second cover 103 are inserted into the T-shaped annular plate 301, at the same time, the insertion hole 104 corresponds to the insertion rod 3024, then the push rod 3021 is pulled outwards, the push plate 3021 moves to drive the connecting plate 3023 to press the spring 3022, at the same time, the insertion rod 3024 is received in the groove 3011, then the first cover 102 and the second cover 103 are pushed towards the middle until the connecting wire contacts with the gasket 3012, at the same time, the insertion rod 3024 is inserted into the insertion hole 104 under the elastic force of the spring 3022.

When the housing 1 receives an external force, since the pressure chip 2043 is not in direct contact with the housing 1, an external stress generated by the housing 1 cannot act on the pressure chip 2043, and since the guard pad 2022 and the buffer pad 2024 are provided between the fixing cylinder 2021 and the pressure lever 2044 and the stopper 2023, a force that can act on the pressure lever 2044 is hardly generated, and therefore, the detection of the pressure is not substantially affected.

In addition, under the arrangement of the first cover 102, the second cover 103, the sleeve 101 and the fixing structure 3, the disassembly and assembly of the shell 1 are convenient, and the waterproof sealing effect can be achieved.

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 embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a pressure sensor, includes casing (1), its characterized in that is equipped with mounting structure (2) in casing (1), the casing (1) outside is equipped with fixed knot and constructs (3), mounting structure (2) are including installation component (201) and protection component (202), installation component (201) are including mount pad (203) and installation component (204), fixed knot constructs (3) including T type annular plate (301) and a plurality of fixed part (302).

2. A pressure sensor according to claim 1, wherein the housing (1) comprises a sleeve (101), a first cover (102) and a second cover (103) are respectively arranged at two ends of the sleeve (101), and a plurality of jacks (104) are respectively arranged on the first cover (102) and the second cover (103).

3. A pressure sensor according to claim 2, characterized in that the mounting base (203) comprises a support plate (2031) fixedly connected with the sleeve (101), and a plurality of limit cylinders (2032) are fixedly connected to the top of the support plate (2031).

4. A pressure sensor according to claim 3, wherein the mounting assembly (204) comprises a mounting plate (2041), a plurality of sliding rods (2042) corresponding to the limiting cylinders (2032) are fixedly connected to the bottom of the mounting plate (2041), a pressure chip (2043) is arranged at the bottom of the mounting plate (2041), a connecting line (2045) is arranged on the pressure chip (2043), and a pressure rod (2044) is fixedly connected to the top of the mounting plate (2041).

5. A pressure sensor according to claim 4, wherein the protection component (202) comprises a fixed cylinder (2021) fixedly connected with the first cover (102), a protection pad (2022) is fixedly connected in the fixed cylinder (2021), a limiting plate (2023) and a buffer pad (2024) are fixedly connected on the pressure rod (2044), and the buffer pad (2024) is located above the limiting plate (2023).

6. A pressure sensor according to claim 5, characterized in that the T-shaped annular plate (301) is provided with a plurality of grooves (3011), two gaskets (3012) are provided in the grooves (3011), and the two gaskets (3012) are symmetrical.

7. The pressure sensor according to claim 6, wherein the fixing component (302) comprises a push rod (3021) slidably connected with the T-shaped annular plate (301), one end of the push rod (3021) is fixedly connected with a connecting plate (3023), a spring (3022) is sleeved on the outer surface of the push rod (3021), two ends of the spring (3022) are fixedly connected with the groove (3011) and one side of the connecting plate (3023) respectively, and two ends of the connecting plate (3023) are fixedly connected with inserting rods (3024) corresponding to the insertion holes (104).