CN218847449U

CN218847449U - Pressure sensor's packaging structure

Info

Publication number: CN218847449U
Application number: CN202223020058.1U
Authority: CN
Inventors: 杨万水
Original assignee: Changqi Shanghai Instrument Co ltd
Current assignee: Changqi Shanghai Instrument Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-04-11
Anticipated expiration: 2032-11-14

Abstract

The utility model discloses a pressure sensor's packaging structure relates to pressure sensor technical field. The device comprises a fixed seat, wherein a first threaded sleeve is fixedly arranged at the bottom of the fixed seat, a packaging assembly is arranged at the top of the fixed seat, and a connecting assembly is arranged at the top end of the packaging assembly; the packaging assembly comprises a shell, a partition plate, a sealing gasket, a bonding pad and a PCB substrate; casing fixed mounting is at the top of fixing base, and baffle fixed mounting is in the inboard of casing, and sealed the pad is installed in the inboard bottom of casing, and the pad is installed at sealed top of filling up, and PCB base plate fixed mounting is on the pad. The utility model discloses it is very convenient that whole process dismantles, has made things convenient for the later stage maintenance to pressure sensor greatly.

Description

Pressure sensor's packaging structure

Technical Field

The utility model belongs to the technical field of pressure sensor, especially, relate to a pressure sensor's packaging structure.

Background

The pressure sensor packaging technology is a core technology for realizing the application of the pressure sensor. In the current industrial application, due to the strict requirements of the application environment, the pressure sensor is usually packaged in a manner that a pressure sensitive chip is directly bonded or glass is bonded in a transitional manner on a metal tube shell, and then a PCB (printed circuit board) is bonded, a peripheral calibration circuit is welded, and the like. However, this kind of packaging method has the disadvantages of complex process, high cost, difficulty in batch test and calibration, poor consistency, etc.;

in view of the above, chinese patent application No. CN201520126124.4 discloses "a pressure sensor package structure, including a housing communicated with the outside and a connector connected and fixed to the housing, where an accommodating space is formed between the connector and the housing, the pressure sensor package structure further includes a PCB disposed in the accommodating space and fixed to the housing, and a package module and a peripheral electronic device adhered to the PCB;

this patent is through carrying out outside encapsulation of shell and connector, though possesses fine leakproofness, nevertheless, need maintain it when the inside trouble of pressure sensor and detect, this just needs to dismantle it, and the shell and the connector of this patent adopt fixed scarf joint, and this kind of structure is difficult to dismantle, is unfavorable for dismantling the maintenance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure sensor's packaging structure rotates the position relation of control wedge briquetting and all first wedges through rotating the thread bush, has solved current being unfavorable for dismantling the maintenance problem.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a pressure sensor's packaging structure, including the fixing base, the bottom of fixing base is fixed with first thread bush, the top of fixing base is installed the encapsulation subassembly, the top of encapsulation subassembly is installed coupling assembling; the packaging assembly comprises a shell, a partition plate, a sealing gasket, a bonding pad and a PCB substrate; the casing fixed mounting is at the top of fixing base, baffle fixed mounting is in the inboard of casing, sealed the pad is installed in the inboard bottom of casing, the top at sealed the pad is installed to the pad, PCB base plate fixed mounting is on the pad.

Further, the connecting assembly comprises a connecting seat, a welding pin and a mounting cylinder; the connecting seat can be inserted into the inner side of the shell and attached to the partition plate, the welding pins are fixedly installed at the bottom of the connecting seat, and the installation cylinder is fixedly installed at the top of the connecting seat.

Further, a second thread bushing is installed on the inner side of the installation cylinder in a threaded mode, the second thread bushing penetrates through the top wall of the installation cylinder, a rotating disc is fixedly installed at the top of the second thread bushing, and a limiting piece is installed at the bottom of the second thread bushing.

Furthermore, the limiting part comprises a wedge-shaped pressing block, a plurality of sliding rods, a plurality of first wedge-shaped blocks and a plurality of second wedge-shaped blocks; a plurality of the slide bar all runs through the connecting seat, and with connecting seat sliding connection, it is a plurality of the slide bar distributes around the connecting seat equidistance, and is a plurality of first wedge fixed mounting is in the one end of corresponding slide bar, and is a plurality of second wedge fixed mounting is at the corresponding slide bar other end, wedge briquetting fixed mounting in the bottom of second thread bush, and can contact with all first wedges.

Furthermore, a plurality of springs are sleeved on the sliding rods and are located on the inner side of the connecting seat.

Furthermore, a plurality of accommodating grooves matched with the second wedge-shaped blocks are formed in the outer side of the connecting seat, and the second wedge-shaped blocks can be completely accommodated in the corresponding accommodating grooves.

The utility model discloses following beneficial effect has:

1. the sealing gasket can greatly improve the sealing performance of the package, and the welding pad can realize the quick welding of the PCB substrate;

2. the utility model discloses a rotate the rotary disk and can make the thread bush rotate to can make the thread bush rebound, this just makes wedge briquetting and all first wedges break away from, spring release potential energy this moment, and then make all second wedges accomodate corresponding accomodating inslot again, can directly take out the connecting seat in the casing at last, whole process dismantles very conveniently, has made things convenient for the later stage maintenance to pressure sensor greatly.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a package structure of a pressure sensor;

FIG. 2 is a schematic diagram of a package assembly of a pressure sensor package structure;

FIG. 3 is a schematic diagram of a connection assembly of a pressure sensor package;

FIG. 4 is a schematic diagram of a position-limiting member of a package structure of a pressure sensor;

in the drawings, the components represented by the respective reference numerals are listed below:

the fixing seat 1, the first threaded sleeve 2, the packaging assembly 3, the shell 31, the partition plate 32, the sealing gasket 33, the soldering pad 34, the PCB substrate 35, the connecting assembly 4, the connecting seat 41, the soldering pin 42, the mounting cylinder 43, the second threaded sleeve 44, the rotating disk 45, the limiting member 46, the wedge-shaped pressing block 461, the sliding rod 462, the first wedge-shaped block 463, the spring 464, the second wedge-shaped block 465 and the accommodating groove 466.

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 of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention is a pressure sensor package structure, including a fixing base 1, a first thread bushing 2 fixedly installed at the bottom of the fixing base 1, a package assembly 3 installed at the top of the fixing base 1, and a connection assembly 4 installed at the top end of the package assembly 3; the package assembly 3 includes a case 31, a spacer 32, a gasket 33, a pad 34, and a PCB substrate 35; the shell 31 is fixedly installed at the top of the fixed seat 1, the partition plate 32 is fixedly installed at the inner side of the shell 31, the sealing gasket 33 is installed at the bottom end of the inner side of the shell 31, the pad 34 is installed at the top of the sealing gasket 33, and the PCB substrate 35 is fixedly installed on the pad 34. The sealing performance of the package can be greatly improved by the sealing gasket 33, and the soldering pads 34 can realize rapid soldering to the PCB substrate 35.

As shown in fig. 1 to 3, the connecting assembly 4 includes a connecting seat 41, a welding pin 42 and an installation cylinder 43; the connecting seat 41 can be inserted into the inner side of the shell 31 and attached to the partition plate 32, the welding pin 42 is fixedly installed at the bottom of the connecting seat 41, and the installation cylinder 43 is fixedly installed at the top of the connecting seat 41; a second threaded sleeve 44 is threadedly mounted on the inner side of the mounting tube 43, the second threaded sleeve 44 penetrates through the top wall of the mounting tube 43, a rotating disc 45 is fixedly mounted on the top of the second threaded sleeve 44, and a limiting member 46 is mounted on the bottom of the second threaded sleeve 44. The second threaded sleeve 44 can be rotated by rotating the rotating disc 45, so that the second threaded sleeve 44 can be moved downward or upward.

As shown in fig. 1 to 4, the position-limiting element 46 includes a wedge-shaped pressing block 461, a plurality of sliding rods 462, a plurality of first wedge-shaped blocks 463, and a plurality of second wedge-shaped blocks 465; a plurality of sliding rods 462 penetrate through the connecting seat 41 and are connected with the connecting seat 41 in a sliding manner, the plurality of sliding rods 462 are distributed around the connecting seat 41 at equal intervals, a plurality of first wedge-shaped blocks 463 are fixedly arranged at one ends of the corresponding sliding rods 462, a plurality of second wedge-shaped blocks 465 are fixedly arranged at the other ends of the corresponding sliding rods 462, and wedge-shaped pressing blocks 461 are fixedly arranged at the bottom of the second thread sleeve 44 and can be in contact with all the first wedge-shaped blocks 463; springs 464 are sleeved on the sliding rods 462, and the springs 464 are positioned on the inner side of the connecting seat 41; a plurality of accommodating grooves 466 matched with the second wedge-shaped blocks 465 are formed in the outer side of the connecting seat 41, and the plurality of second wedge-shaped blocks 465 can be completely accommodated in the corresponding accommodating grooves 466.

One specific application of this embodiment is: during installation, the connecting seat 41 is directly inserted into the inner side of the housing 31 to be completely attached to the partition plate 32, meanwhile, the partition plate 32 can support the connecting seat 41, then the rotating disc 45 is rotated to enable the second threaded sleeve 44 to rotate, so that the second threaded sleeve 44 can move downwards, the wedge-shaped pressing blocks 461 move downwards and act on all the first wedge-shaped blocks 463, all the first wedge-shaped blocks 463 drive the corresponding sliding rods 462 to move outwards, meanwhile, the springs 464 are compressed to accumulate elastic potential energy, all the second wedge-shaped blocks 465 extend out of the accommodating grooves 466 to be in contact with the inner wall of the housing 31, and therefore the second wedge-shaped blocks 465 limit the connecting seat 41, and stable fixation of the connecting seat 41 and the housing 31 can be guaranteed;

during the dismantlement, can make second thread bush 44 rotate through reverse rotation rotary disk 45, thereby can make second thread bush 44 rebound, this just makes wedge briquetting 461 break away from with all first wedge 463, spring 464 release potential energy this moment, and then make all second wedge 465 accomodate corresponding accomodating in the groove 466 again, can directly take out connecting seat 41 from casing 31 at last, whole process dismantlement is very convenient, made things convenient for the later maintenance to pressure sensor greatly.

In the description of the present specification, reference to the description of "one embodiment," "an example," "a specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a pressure sensor's packaging structure, includes fixing base (1), the bottom fixed mounting of fixing base (1) has first thread bush (2), its characterized in that: a packaging assembly (3) is mounted at the top of the fixed seat (1), and a connecting assembly (4) is mounted at the top end of the packaging assembly (3); the packaging assembly (3) comprises a shell (31), a partition plate (32), a sealing gasket (33), a welding disc (34) and a PCB substrate (35); casing (31) fixed mounting is at the top of fixing base (1), baffle (32) fixed mounting is in the inboard of casing (31), sealed bottom at casing (31) inboard is installed in sealed pad (33), the top at sealed pad (33) is installed in pad (34), PCB base plate (35) fixed mounting is on pad (34).

2. The packaging structure of a pressure sensor according to claim 1, characterized in that the connecting component (4) comprises a connecting seat (41), a welding pin (42) and a mounting barrel (43); the connecting seat (41) can be inserted into the inner side of the shell (31) and attached to the partition plate (32), the welding pin (42) is fixedly installed at the bottom of the connecting seat (41), and the installation cylinder (43) is fixedly installed at the top of the connecting seat (41).

3. A pressure sensor package according to claim 2, wherein the inner side of the mounting cylinder (43) is threadedly mounted with a second threaded sleeve (44), the second threaded sleeve (44) penetrates through the top wall of the mounting cylinder (43), the top of the second threaded sleeve (44) is fixedly mounted with a rotating disk (45), and the bottom of the second threaded sleeve (44) is mounted with a stopper (46).

4. The package structure of a pressure sensor according to claim 3, wherein the limiting member (46) comprises a wedge-shaped pressing block (461), a plurality of sliding rods (462), a plurality of first wedge-shaped blocks (463) and a plurality of second wedge-shaped blocks (465); a plurality of slide bar (462) all run through connecting seat (41) and with connecting seat (41) sliding connection, a plurality of slide bar (462) are around connecting seat (41) equidistance distribution, a plurality of first wedge (463) fixed mounting is in the one end of corresponding slide bar (462), a plurality of second wedge (465) fixed mounting is at the corresponding slide bar (462) other end, wedge briquetting (461) fixed mounting is in the bottom of second thread bush (44) and can contact with all first wedge (463).

5. The package structure of a pressure sensor according to claim 4, wherein a plurality of the sliding rods (462) are sleeved with springs (464), and a plurality of the springs (464) are located inside the connecting seat (41).

6. The pressure sensor package according to claim 5,

a plurality of grooves (466) of accomodating with second wedge block (465) matched with are seted up in the outside of connecting seat (41), and a plurality of second wedge block (465) can accomodate corresponding accomodating inside the groove (466) completely.