CN216483617U

CN216483617U - Novel ceramic pressure sensor core

Info

Publication number: CN216483617U
Application number: CN202123353076.7U
Authority: CN
Inventors: 谢文; 袁宇飞
Original assignee: Dongguan Huaxinlian Technology Co ltd
Current assignee: Dongguan Huaxinlian Technology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-05-10
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses a novel pottery pressure sensor core, including bottom plate, pressure chip and casing, the bottom of bottom plate all is fixed with the stitch, and the both sides of bottom plate all are provided with fixed knot and construct, and the top of bottom plate is provided with pressure chip, and pressure chip's bottom is provided with heat radiation structure, and pressure chip's outside cover is equipped with the casing, is provided with the epoxy coating on the lateral wall of casing, and the inside on casing top is fixed with the diaphragm. The utility model discloses a fix the fixed block in the position of use, place the bottom at the connecting block with the bottom plate immediately, make the inside that the inserted block inserted the bottom plate through pressing down the inserted bar, be convenient for with the fixed position of bottom plate welding with the circuit board, realized the installation function of being convenient for of this device from this, improve device installation effectiveness, reduce the time that installation device lost, improved the convenience of this device.

Description

Novel ceramic pressure sensor core

Technical Field

The utility model relates to a pottery pressure sensor technical field, in particular to novel pottery pressure sensor core.

Background

The ceramic pressure sensor is a high-precision sensor and is widely applied to the fields of water conservancy and hydropower, railway traffic, intelligent buildings, aerospace and the like, the device is the most main part of the ceramic pressure sensor, and the ceramic pressure sensor senses a pressure value through slight change of a diaphragm;

chinese patent grant publication No. CN213481611U, announcement day 2021 year 06 month 18 day discloses an oil charge pressure sensor core of new construction, oil charge pressure sensor core bottom is equipped with the core seat, be equipped with first recess in the core seat, first recess intermediate position welding To pipe, To pastes pressure chip on the pipe, the top welding diaphragm of oil charge pressure sensor core, the top welding clamping ring of diaphragm, the clamping ring inboard is equipped with the internal thread, be equipped with the chamber that holds of intercommunication between diaphragm and the To pipe, hold intracavity silicone oil filling. The core body of the oil-filled pressure sensor is a threaded joint, the connecting effect is good, the connecting strength is high, and the sensor can be installed and used without welding an installation part; the sealing effect is good through the O-shaped ring sealing of the end face of the compression ring; the oil-filled pressure sensor has fewer parts, simpler processing technology and lower cost;

the above prior art solutions have the following drawbacks; among the above-mentioned technical scheme, the device has the defect that the installation is fixed inconvenient when using, makes the working process of device loaded down with trivial details, influences the installation effectiveness of device.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to provide a novel ceramic pressure sensor core to provide the fixed problem of installation not convenient for in solving above-mentioned background art.

(II) contents of utility model

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a novel pottery pressure sensor core, includes bottom plate, pressure chip and casing, the bottom of bottom plate all is fixed with the stitch, the both sides of bottom plate all are provided with fixed knot and construct, the top of bottom plate is provided with pressure chip, pressure chip's bottom is provided with heat radiation structure, pressure chip's outside cover is equipped with the casing, be provided with the epoxy coating on the lateral wall of casing, the inside on casing top is fixed with the diaphragm.

Use this technical scheme's novel ceramic pressure sensor core, the material of epoxy coating mainly is epoxy, makes the epoxy coating adhere to the surface of casing and blocks casing and external contact, prevents the casing corrosion, and the epoxy coating has good water proofness and electrical insulation nature simultaneously, improves the protective effect to the casing.

Preferably, the heat radiation structure comprises a heat conduction plate, a silicone grease layer, a connecting plate and fins, wherein the silicone grease layer is arranged at the bottom end of the pressure chip, the heat conduction plate is arranged at the bottom end of the silicone grease layer, the connecting plate is fixed on two sides of the heat conduction plate, and the fins are fixed on one side of the connecting plate. The silicone grease layer accelerates the pressure chip to transfer heat to the heat conducting plate, so that the heat conducting plate guides the heat into the connecting plate, and the connecting plate transfers the heat to the outside.

Preferably, the heat-conducting plate penetrates through the shell to be connected with the connecting plate, and the heat-conducting plate and the connecting plate are in a welding integrated structure. Because the connecting part between the connecting plate and the heat conducting plate has no gap, the heat conducting plate is convenient to transfer heat to the connecting plate.

Preferably, a plurality of groups of fins are arranged on one side of the connecting plate, and the plurality of groups of fins are distributed on one side of the connecting plate at equal intervals. The fins increase the heat dissipation area of the fins, and the heat transfer from the connecting plate to the outside is accelerated.

Preferably, fixed knot constructs including fixed block, inserted block, lug, rubber sleeve, inserted bar and connecting block, the fixed block sets up the both sides at the bottom plate, the top of fixed block is fixed with the connecting block, and the internally mounted of connecting block has the rubber sleeve, the inside of rubber sleeve is inserted and is equipped with the inserted bar, the outside of inserted bar is fixed with the lug, the bottom mounting of inserted bar has the inserted block. Fix the fixed block in the position of use in advance, place the bottom plate in the bottom of connecting block, press the inserted bar and make the inside of inserted block insertion bottom plate, be convenient for with the rigidity of bottom plate with the circuit board welding, because lug extrusion rubber sleeve has obvious resistance when the inserted bar upwards moves, make the inside of inserted block be not convenient for leave the bottom plate.

Preferably, the width of the lug is larger than the inner diameter of the rubber sleeve, and the inserted bar penetrates through the rubber sleeve to be connected with the inserted block. The lug is prevented from penetrating through the rubber sleeve when the plug is not in use, so that the plug block is prevented from leaving the inside of the bottom plate.

Preferably, the fixed blocks are arranged on one side of the bottom plate in a plurality of groups, and the fixed blocks in the plurality of groups are distributed on the bottom plate at equal intervals. And a plurality of groups of fixing positions are arranged to firmly fix the bottom plate.

(III) advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that: this novel ceramic pressure sensor core is rational in infrastructure, has following advantage:

(1) the fixing block is fixed at the using position, the bottom plate is placed at the bottom end of the connecting block, the inserting block is inserted into the bottom plate by pressing the inserting rod, and the position of the bottom plate is fixed and is convenient to weld with the circuit board, so that the convenient mounting function of the device is realized, the mounting efficiency of the device is improved, the time consumed by mounting the device is reduced, and the convenience of the device is improved;

(2) the silicon grease layer accelerates the pressure chip to transfer heat to the heat conducting plate, then the heat conducting plate transfers the heat to the inner parts of the connecting plates at two sides, and the fins accelerate the connecting plates to transfer the heat to the outside, so that the quick heat dissipation function of the device is realized, the heat in the device is conveniently and quickly led out, the pressure chip can stably work, and the functionality of the device is improved;

(3) the surface of the shell is adhered to through the epoxy resin coating to block the shell from contacting with the outside, so that the shell is prevented from being corroded, the corrosion and water resisting functions of the device are realized, the surface of the device is prevented from contacting with water vapor for a long time and being corroded, and the service life of the device is prolonged.

Drawings

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

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic diagram of a three-dimensional cross-sectional structure of the heat dissipation structure of the present invention;

fig. 4 is a schematic view of the front cross-sectional structure of the fixing structure of the present invention;

fig. 5 is a schematic side view of the fixing structure of the present invention.

The reference numerals in the figures illustrate: 1. a base plate; 2. a stitch; 3. a heat dissipation structure; 301. a heat conducting plate; 302. a silicone layer; 303. a connecting plate; 304. a fin; 4. a pressure chip; 5. a fixed structure; 501. a fixed block; 502. inserting a block; 503. a bump; 504. a rubber sleeve; 505. inserting a rod; 506. connecting blocks; 6. a membrane; 7. an epoxy resin coating; 8. a housing.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

Referring to fig. 1-5, the utility model provides a novel ceramic pressure sensor core, which comprises a bottom plate 1, a pressure chip 4 and a housing 8, wherein pins 2 are fixed at the bottom end of the bottom plate 1, fixing structures 5 are arranged at both sides of the bottom plate 1, the top end of the bottom plate 1 is provided with the pressure chip 4, a heat dissipation structure 3 is arranged at the bottom end of the pressure chip 4, the housing 8 is sleeved at the outer side of the pressure chip 4, an epoxy resin coating 7 is arranged on the outer side wall of the housing 8, a diaphragm 6 is fixed inside the top end of the housing 8, the fixing structure 5 comprises a fixing block 501, an insert block 502, a bump 503, a rubber sleeve 504, an insert rod 505 and a connecting block 506, the fixing block 501 is arranged at both sides of the bottom plate 1, the connecting block 506 is fixed at the top end of the fixing block 501, the rubber sleeve 504 is arranged inside the connecting block 506, the insert rod 505 is inserted inside the rubber sleeve 504, the bump is fixed outside the insert rod 505, the bottom end of the inserted bar 505 is fixed with an inserted block 502, the width of the convex block 503 is larger than the inner diameter of the rubber sleeve 504, the inserted bar 505 passes through the rubber sleeve 504 to be connected with the inserted block 502, a plurality of groups of fixed blocks 501 are arranged on one side of the bottom plate 1, and the fixed blocks 501 are distributed on the bottom plate 1 at equal intervals.

The working principle of the novel ceramic pressure sensor core based on the embodiment 1 is as follows: the fixing block 501 is fixed at a use position in advance, the bottom plate 1 is placed at the bottom end of the connecting block 506, the inserting rod 505 drives the lug 503 to move downwards by pressing the inserting rod 505, the lug 503 extrudes the rubber sleeve 504, the lug 503 penetrates through the rubber sleeve 504 through the torsional deformation of the rubber sleeve 504, meanwhile, the inserting block 502 is inserted into the bottom plate 1, the position of the bottom plate 1 is fixed to be convenient for being welded with a circuit board, the lug 503 has obvious resistance to extrude the rubber sleeve 504 when the inserting rod 505 moves upwards, the inserting block 502 is not convenient to leave the inside of the bottom plate 1, the epoxy resin coating 7 is mainly made of epoxy resin, the epoxy resin coating 7 is attached to the surface of the shell 8 to prevent the shell 8 from contacting with the outside, and the shell 8 is prevented from being corroded, meanwhile, the epoxy resin coating 7 has good water resistance and electric insulation, and the protection effect on the shell 8 is improved.

Example two

The embodiment comprises the following steps: the heat dissipation structure 3 comprises a heat conduction plate 301, a silicone grease layer 302, a connection plate 303 and fins 304, the silicone grease layer 302 is arranged at the bottom end of the pressure chip 4, the heat conduction plate 301 is arranged at the bottom end of the silicone grease layer 302, the connection plate 303 is fixed on two sides of the heat conduction plate 301, the fins 304 are fixed on one side of the connection plate 303, the heat conduction plate 301 penetrates through the shell 8 to be connected with the connection plate 303, the heat conduction plate 301 and the connection plate 303 are of a welding integrated structure, a plurality of groups of fins 304 are arranged on one side of the connection plate 303, and the plurality of groups of fins 304 are distributed at equal intervals on one side of the connection plate 303.

In this embodiment, the silicone grease layer 302 is coated on the bottom of the pressure chip 4 to accelerate the heat transfer from the pressure chip 4 to the heat conducting plate 301, and then the heat conducting plate 301 transfers the heat to the inside of the connecting plates 303 on both sides, so as to increase the heat dissipation area of the connecting plates 303 through the fins 304 and accelerate the heat transfer from the connecting plates 303 to the outside.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a novel pottery pressure sensor core, includes bottom plate (1), pressure chip (4) and casing (8), its characterized in that: pins (2) are fixed at the bottom end of the bottom plate (1), fixing structures (5) are arranged on two sides of the bottom plate (1), and a pressure chip (4) is arranged at the top end of the bottom plate (1);

the bottom end of the pressure chip (4) is provided with a heat dissipation structure (3), and the outer side of the pressure chip (4) is sleeved with a shell (8);

the outer side wall of the shell (8) is provided with an epoxy resin coating (7), and a diaphragm (6) is fixed inside the top end of the shell (8).

2. The novel ceramic pressure sensor core of claim 1 wherein: heat radiation structure (3) include heat-conducting plate (301), silicone grease layer (302), connecting plate (303) and fin (304), silicone grease layer (302) set up the bottom in pressure chip (4), be provided with heat-conducting plate (301) in silicone grease layer (302) bottom, the both sides of heat-conducting plate (301) all are fixed with connecting plate (303), one side of connecting plate (303) all is fixed with fin (304).

3. The novel ceramic pressure sensor core of claim 2 wherein: the heat-conducting plate (301) penetrates through the shell (8) to be connected with the connecting plate (303), and the heat-conducting plate (301) and the connecting plate (303) are in a welding integrated structure.

4. The novel ceramic pressure sensor core of claim 2 wherein: the fins (304) are arranged in a plurality of groups on one side of the connecting plate (303), and the plurality of groups of fins (304) are distributed on one side of the connecting plate (303) at equal intervals.

5. The novel ceramic pressure sensor core of claim 1 wherein: fixed knot constructs (5) including fixed block (501), inserted block (502), lug (503), rubber sleeve (504), inserted bar (505) and connecting block (506), fixed block (501) set up the both sides at bottom plate (1), the top of fixed block (501) is fixed with connecting block (506), and the internally mounted of connecting block (506) has rubber sleeve (504), the inside of rubber sleeve (504) is inserted and is equipped with inserted bar (505), the outside of inserted bar (505) is fixed with lug (503), the bottom mounting of inserted bar (505) has inserted block (502).

6. The novel ceramic pressure sensor core of claim 5 wherein: the width of the convex block (503) is larger than the inner diameter of the rubber sleeve (504), and the insert rod (505) penetrates through the rubber sleeve (504) to be connected with the insert block (502).

7. The novel ceramic pressure sensor core of claim 5, wherein: the fixing blocks (501) are arranged on one side of the bottom plate (1) in a plurality of groups, and the fixing blocks (501) in the plurality of groups are distributed on the bottom plate (1) at equal intervals.