CN218098096U

CN218098096U - Protective structure in pressure sensor

Info

Publication number: CN218098096U
Application number: CN202222239651.9U
Authority: CN
Inventors: 艾育林; 陈建华
Original assignee: Jiangxi Wannianxin Microelectronics Co Ltd
Current assignee: Jiangxi Wannianxin Microelectronics Co Ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2022-12-20
Anticipated expiration: 2032-08-25

Abstract

The utility model relates to a pressure sensor technical field specifically is a protective structure in pressure sensor, which comprises a housin, the top fixed mounting of casing has the fixing base, the bottom center department of fixing base has seted up the mounting groove, the top of fixing base is provided with the connector, the bottom fixed mounting of casing has the plug socket, the cavity has been seted up to the inside of casing, spacing block, sensor element are installed respectively on the inside top of cavity, sensor element's the fixed high-pressure connecting pipe that is provided with in top, sensor element's bottom is provided with printed circuit board, the inside of cavity is provided with the contact piece, be provided with protection machanism between casing and the fixing base, through the protection machanism who sets up in protective structure in pressure sensor, and then realized carrying out dampproofing protection's purpose to pressure sensor, avoided the humid condition to appear in the sensitive part, prevented pressure sensor's damage, be favorable to follow-up use to pressure sensor.

Description

Protective structure in pressure sensor

Technical Field

The utility model relates to a pressure sensor technical field specifically is a protective structure in pressure sensor.

Background

Protective structure in the pressure sensor who uses at present in the pressure sensor protection process, the dampproofing effect that its protective structure embodies mostly is relatively poor, consequently when using, leads to the sensitive part in the pressure sensor to appear the condition of weing easily, leads to influencing pressure sensor's output current, and then leads to the fact the damage to pressure sensor, is unfavorable for subsequent use, has reduced pressure sensor's practicality.

To sum up, the utility model discloses a protective structure solves the problem among the above-mentioned background art in designing a pressure sensor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a protective structure in pressure sensor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a protection structure in a pressure sensor comprises a shell, wherein a fixed seat is fixedly mounted at the top of the shell, a mounting groove is formed in the center of the bottom of the fixed seat, a connector is arranged at the top of the fixed seat, external threads are formed in the bottom of the outer side of the connector, a pressure groove is formed in the top of the connector, a plug seat is fixedly mounted at the bottom of the shell, a cavity is formed in the shell, a spacer block and a sensor element are respectively mounted at the top end of the inner part of the cavity, a high-pressure connecting pipe is fixedly arranged at the top of the sensor element, a printed circuit board is arranged at the bottom of the sensor element, the left side and the right side of the top of the printed circuit board are respectively and fixedly connected with the bottom of the spacer block through a fixing body, a contact piece is arranged in the cavity, a plug is fixedly mounted at the bottom of the contact piece, and a protection mechanism is arranged between the shell and the fixed seat;

protection machanism includes the first dampproofing inoxidizing coating of fixed mounting on the inside top of mounting groove, the fixed second dampproofing inoxidizing coating that is provided with in bottom of first dampproofing inoxidizing coating, the fixed third dampproofing inoxidizing coating that sets up in bottom of second dampproofing inoxidizing coating.

As the utility model discloses preferred scheme, the fixing base top is with the bottom integrated into one piece welded molding of connector.

As the utility model discloses preferred scheme, the fixed card strip that is provided with in the outside of plug seat, wherein the card strip is vertical direction setting, the inside of plug seat is the cavity form.

As the utility model discloses preferred scheme, the spacing block has two, two the spacing block symmetry fixed mounting is in sensor element's the left and right sides respectively, and the inside wall fixed connection of its back of the body side and cavity.

As the utility model discloses preferred scheme, the top of high pressure connecting pipe run through in the inside top of mounting groove and with the inside bottom surface looks parallel and level of overhead tank, the top of high pressure connecting pipe covers in the bottom outside of overhead tank completely.

As the utility model discloses preferred scheme, the left and right sides of contact piece all with the inner wall fixed connection of cavity, and leave the clearance between its bottom surface and the inside bottom of cavity, the bottom of plug runs through in the inside bottom of cavity and extends to the inside of plug seat, and is sealed the setting between the inner wall of its outside and cavity.

As the preferred scheme of the utility model, printed circuit board is connected with sensor element through the wire, the contact piece is connected with printed circuit board through the wire.

As the utility model discloses preferred scheme, the inside of first dampproofing inoxidizing coating, second dampproofing inoxidizing coating and third dampproofing inoxidizing coating all with the outside sealing connection of high-pressure connecting pipe, the outside surface of third dampproofing inoxidizing coating closely laminates with the inner wall of cavity.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, through the protection machanism that sets up in protective structure in pressure sensor to utilize the structural design of first dampproofing inoxidizing coating, the dampproofing inoxidizing coating of second and the dampproofing inoxidizing coating of third among the protection machanism, and then realized carrying out the purpose of dampproofing protection to pressure sensor, avoided sensitive part moist condition to appear, prevented pressure sensor's damage, be favorable to follow-up use to pressure sensor.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the device of the present invention;

fig. 3 is a schematic structural diagram of the local protection mechanism of the present invention.

In the figure: 1. a housing; 101. a fixed seat; 102. a connector; 1021. an external thread; 1022. a pressure tank; 103. a plug base; 2. a cavity; 201. an isolation block; 202. a sensor element; 203. a high-pressure connecting pipe; 204. a printed circuit board; 205. a contact piece; 206. a plug; 3. a protection mechanism; 301. a first moisture-proof protective layer; 302. a second moisture-proof protective layer; 303. and a third moisture prevention protective layer.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention based on the embodiments of the present invention.

To facilitate understanding of the invention, the invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which can be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of making the disclosure more thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the terms herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the use of the term "and/or" herein includes any and all combinations of one or more of the associated listed items.

In an embodiment, please refer to fig. 1-3, the present invention provides a technical solution:

a protection structure in a pressure sensor comprises a shell 1, a fixed seat 101 is fixedly installed at the top of the shell 1, an installation groove is formed in the center of the bottom of the fixed seat 101, a connector 102 is arranged at the top of the fixed seat 101, external threads 1021 are formed in the bottom of the outer side of the connector 102, a pressure groove 1022 is formed in the top of the connector 102, a plug seat 103 is fixedly installed at the bottom of the shell 1, a cavity 2 is formed in the shell 1, a separation block 201 and a sensor element 202 are installed at the top end of the cavity 2 respectively, a high-pressure connecting pipe 203 is fixedly arranged at the top of the sensor element 202, a printed circuit board 204 is arranged at the bottom of the sensor element 202, the left side and the right side of the top of the printed circuit board 204 are fixedly connected with the bottom of the separation block 201 through a fixing body respectively, contact pieces 205 are arranged in the cavity 2, a plug 206 is fixedly installed at the bottom of the contact pieces 205, and the plug 206 is convenient to be connected with other instruments;

the top of the fixing seat 101 and the bottom of the connecting head 102 are integrally welded to form, a clamping strip is fixedly arranged on the outer side of the plug seat 103, the clamping strip is arranged in the vertical direction, the inside of the plug seat 103 is hollow, two isolating blocks 201 are provided, the two isolating blocks 201 are respectively and symmetrically fixedly mounted on the left side and the right side of the sensor element 202, the opposite sides of the isolating blocks are fixedly connected with the inner wall of the cavity 2, the top end of the high-pressure connecting pipe 203 penetrates through the top end of the inside of the mounting groove and is flush with the surface of the bottom end of the inside of the pressure groove 1022, the top end of the high-pressure connecting pipe 203 completely covers the outer side of the bottom of the pressure groove 1022, the left side and the right side of the contact piece 205 are fixedly connected with the inner wall of the cavity 2, a gap is reserved between the bottom surface of the contact piece and the bottom end of the inside of the cavity 2, the bottom end of the plug 206 penetrates through the bottom end of the inside of the cavity 2 and extends into the inside of the plug seat 103, the outer side of the cavity 2 is hermetically arranged with the inner wall of the contact piece, the printed circuit board 204 is connected with the sensor element 202 through a lead, and the printed circuit board 205 is connected with the printed circuit board 204 through a lead, so that the pressure signal can be conveniently transmitted to the outside.

In this embodiment, referring to fig. 1, fig. 2 and fig. 3, a protection mechanism 3 is disposed between the housing 1 and the fixing seat 101, the protection mechanism 3 includes a first moisture-proof protection layer 301 fixedly mounted at the top end inside the mounting groove, a second moisture-proof protection layer 302 is fixedly disposed at the bottom of the first moisture-proof protection layer 301, and a third moisture-proof protection layer 303 is fixedly disposed at the bottom of the second moisture-proof protection layer 302, so as to protect the pressure sensor;

wherein the inside of first dampproofing inoxidizing coating 301, second dampproofing inoxidizing coating 302 and third dampproofing inoxidizing coating 303 all with the outside sealing connection of high pressure connection pipe 203, the outside surface of third dampproofing inoxidizing coating 303 closely laminates with the inner wall of cavity 2, first dampproofing inoxidizing coating 301, second dampproofing inoxidizing coating 302 and third dampproofing inoxidizing coating 303 have played the effect of protection pressure sensor, and then the effectual problem of having solved dampproofing effect difference among the protective structure, improved pressure sensor's practical function.

The utility model discloses work flow: when using protective structure to protect pressure sensor in the pressure sensor, install pressure sensor in suitable position, through putting into corresponding induction position with connector 102, internal thread through external screw thread 1021 and induction position mutually supports down, it can be fixed to rotate fixing base 101, at this moment, it is corresponding with plug socket 103 with other instruments, under the jack assorted condition of ensureing plug 206 and instrument, utilize the setting of card strip, realize the block of plug socket 103 and instrument, in the protection process to pressure sensor, through first dampproofing inoxidizing coating 301, under the combined action of second dampproofing inoxidizing coating 302 and third dampproofing protective coating 303, make the inside that the water can't enter into pressure sensor, realized the dampproofing protection to pressure sensor, the moist condition has been avoided sensitive part to appear, user's demand has been satisfied.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A protective structure in pressure sensor, includes casing (1), its characterized in that: a fixed seat (101) is fixedly mounted at the top of the shell (1), a mounting groove is formed in the center of the bottom of the fixed seat (101), a connector (102) is arranged at the top of the fixed seat (101), an external thread (1021) is formed in the bottom of the outer side of the connector (102), a pressure groove (1022) is formed in the top of the connector (102), a plug seat (103) is fixedly mounted at the bottom of the shell (1), a cavity (2) is formed in the shell (1), an isolating block (201) and a sensor element (202) are respectively mounted at the top end of the interior of the cavity (2), a high-pressure connecting pipe (203) is fixedly arranged at the top of the sensor element (202), a printed circuit board (204) is arranged at the bottom of the sensor element (202), the left side and the right side of the top of the printed circuit board (204) are respectively fixedly connected with the bottom of the isolating block (201) through a fixing body, a contact piece (205) is arranged in the cavity (2), a plug (206) is fixedly mounted at the bottom of the contact piece (205), and a protection mechanism (3) is arranged between the shell (1) and the fixed seat (101);

protection machanism (3) are including first dampproofing inoxidizing coating (301) on the inside top of mounting groove of fixed mounting, the fixed second dampproofing inoxidizing coating (302) that is provided with in bottom of first dampproofing inoxidizing coating (301), the fixed third dampproofing inoxidizing coating (303) that sets up in bottom of second dampproofing inoxidizing coating (302).

2. The protective structure in a pressure sensor according to claim 1, wherein: the top of the fixed seat (101) and the bottom of the connector (102) are integrally welded.

3. The protective structure in a pressure sensor according to claim 1, wherein: the outside of plug seat (103) is fixed to be provided with the card strip, and wherein the card strip is vertical direction setting, the inside of plug seat (103) is the cavity form.

4. The inner protection structure of a pressure sensor according to claim 1, wherein: the number of the isolation blocks (201) is two, the two isolation blocks (201) are respectively and symmetrically fixedly installed on the left side and the right side of the sensor element (202), and the opposite back sides of the isolation blocks are fixedly connected with the inner wall of the cavity (2).

5. The protective structure in a pressure sensor according to claim 1, wherein: the top end of the high-pressure connecting pipe (203) penetrates through the top end of the interior of the mounting groove and is flush with the surface of the bottom end of the interior of the pressure groove (1022), and the top end of the high-pressure connecting pipe (203) completely covers the outer side of the bottom of the pressure groove (1022).

6. The inner protection structure of a pressure sensor according to claim 1, wherein: the left and right sides of contact piece (205) all with the inner wall fixed connection of cavity (2), and leave the clearance between the inside bottom of its bottom surface and cavity (2), the bottom of plug (206) runs through in the inside bottom of cavity (2) and extends to the inside of plug seat (103), and is sealed the setting between the inner wall of its outside and cavity (2).

7. The protective structure in a pressure sensor according to claim 1, wherein: the printed circuit board (204) is connected to the sensor element (202) by means of a conductor, and the contact strip (205) is connected to the printed circuit board (204) by means of a conductor.

8. The inner protection structure of a pressure sensor according to claim 1, wherein: the inside of first dampproofing inoxidizing coating (301), second dampproofing inoxidizing coating (302) and third dampproofing inoxidizing coating (303) all with the outside sealing connection of high pressure connecting pipe (203), the outside surface of third dampproofing inoxidizing coating (303) closely laminates with the inner wall of cavity (2).