CN215439668U - Waterproof pressure measuring equipment - Google Patents
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- CN215439668U CN215439668U CN202122122757.6U CN202122122757U CN215439668U CN 215439668 U CN215439668 U CN 215439668U CN 202122122757 U CN202122122757 U CN 202122122757U CN 215439668 U CN215439668 U CN 215439668U
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Abstract
The utility model provides waterproof pressure measuring equipment which comprises a packaging structure, a pressure measuring part and a smooth surface, wherein the packaging structure is surrounded by a shell and a substrate; an extension part is arranged at the top of the shell, and the extension part is enclosed into an opening structure communicated with the interior of the packaging structure; the pressure measuring part is arranged in the packaging structure and electrically connected with the substrate; the smooth surface comprises a first smooth surface which is arranged on the extension part and faces to a first direction and a second smooth surface which is arranged on the inner side wall of the shell, and the second smooth surface is connected with the first smooth surface and extends to a first position along the inner side wall of the shell; the vertical distance between the first position and the opening structure is smaller than the vertical distance between the top surface of the pressure measuring part and the opening structure, so that the detection sensitivity of the pressure measuring part is improved, the subsequent glue flushing in the packaging structure can be effectively prevented from generating a glue climbing phenomenon, and the good waterproof effect of the glue is ensured.
Description
Technical Field
The utility model relates to the technical field of electronic products, in particular to a waterproof pressure measuring device.
Background
At present, more and more applications of baroceptor are used in intelligent terminal for measure the position atmospheric pressure information that the product is located, because the terminal product service environment's that has baroceptor variety and complexity, generally require that the terminal product has better waterproof performance. In order to improve the waterproof performance of the sensor, a waterproof adhesive is usually filled in the accommodating cavity to improve the waterproof performance. However, due to the cohesion difference between the waterproof glue and the outer shell, the glue is adhered to the side wall of the outer shell during high-temperature cooling, and if the glue climbs upwards along the side wall of the outer shell due to time and temperature, the glue is commonly called as glue climbing, so that the process control difficulty is increased, even the thickness of the glue above the MEMS chip is changed, the stress of the glue is changed, and the performance drift of the sensor is caused; and when glue climbed to the shell top, can influence the sealed test of follow-up test procedure, the colloid can be with product and test lid stick together, when absorbing in Surface Mount Technology (SMT) process, the colloid can be with product and suction nozzle stick together etc..
Waterproof baroceptor among the prior art usually includes casing and circuit board, the casing forms accommodating space with the circuit board, be equipped with the chip in the accommodating space and fill in waterproof glue around the chip is through being provided with the colloid in the casing inside wall region to reduce the phenomenon that a large amount of adhesion of waterproof glue in the high low temperature change in-process arrive the casing lateral wall, nevertheless at high temperature low temperature change in-process, the colloid that sets up in the casing inside wall region still can up climb along the casing lateral wall, the adhesion is at the casing lateral wall, climb to the casing top even, and the problem that the colloid that glues the casing lateral wall can't recover when still having this waterproof baroceptor high temperature cooling.
Therefore, there is a need to provide a novel waterproof pressure measuring device to solve the above problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide waterproof pressure measuring equipment, which improves the detection sensitivity of a pressure measuring part, can effectively prevent the subsequent glue filled in a packaging structure from generating a glue climbing phenomenon and ensures the good waterproof effect of the glue.
In order to achieve the purpose, the waterproof pressure measuring equipment comprises a packaging structure, a pressure measuring part and a smooth surface, wherein the packaging structure is surrounded by a shell and a substrate;
an extension part is arranged at the top of the shell, the extension part is enclosed into an opening structure communicated with the interior of the packaging structure, and the opening structure faces to a first direction;
the pressure measuring part is arranged in the packaging structure and electrically connected with the substrate, and the pressure measuring part is arranged opposite to the opening structure;
the smooth surface comprises a first smooth surface arranged on the extension part and facing the first direction and a second smooth surface arranged on the inner side wall of the shell, and the second smooth surface is connected with the first smooth surface and extends to a first position along the inner side wall of the shell;
the vertical distance between the first position and the opening structure is smaller than the vertical distance between the top surface of the pressure measuring part and the opening structure.
The waterproof pressure measuring equipment has the advantages that: the pressure measuring part is arranged in the packaging structure and electrically connected with the substrate, and the pressure measuring part is arranged opposite to the opening structure, so that the detection sensitivity of the pressure measuring part is improved; the smooth surface comprises a first smooth surface which is arranged on the epitaxial part and faces the first direction and a second smooth surface which is arranged on the inner side wall of the shell, the second smooth surface is connected with the first smooth surface and extends to a first position along the inner side wall of the shell, so that the roughness and the adhesive force of the smooth surface are reduced, the phenomenon of glue climbing of glue subsequently poured in the packaging structure can be effectively prevented, the problem that the thickness of the glue above the pressure measuring part is changed due to the phenomenon of glue climbing, the stress of the pressure measuring part is changed, the performance drift of the sensor is caused, the sealing test in the subsequent test process is influenced is solved, the glue can stick a product and a test cover together, and when the glue is sucked in the technical process of surface assembly, the glue can stick the product and a suction nozzle together and the like; and the vertical distance between the first position and the opening structure is smaller than the vertical distance between the top surface of the pressure measuring part and the opening structure, so that the glue and the shell which are flushed in the effective area between the first position and the substrate still have high adhesive force, and the good waterproof effect of the glue is ensured.
Preferably, the roughness of the smooth surface is less than the roughness of the rest of the inner side walls of the housing, and the rest of the inner side walls of the housing are the inner side walls of the housing except for the second smooth surface. The beneficial effects are that: can prevent effectively that follow-up being in packaging structure dashes the colloid of irritating and takes place "climbing to glue" phenomenon, has solved because "climbing to glue" phenomenon and lead to surveying splenium top colloid thickness and change to change its stress, cause the sensor performance drift, influence the sealed test of follow-up test procedure, the colloid can be in the same place product and test lid, when absorbing at surface assembly technical process, the colloid can be in the same place the scheduling problem of product and suction nozzle sticking together.
Preferably, a curved surface continuous relationship between the curved surface formed by the first smooth surface and the curved surface formed by the second smooth surface is curvature continuity, and a curved surface continuous relationship between the curved surface formed by the second smooth surface and the curved surface formed by the remaining inner side wall of the housing is curvature continuity. The beneficial effects are that: the subsequent glue that pours into at packaging structure is prevented from taking place "climbing glue" phenomenon, avoids influencing the detectivity of pressure measuring portion.
Preferably, the encapsulation structure is filled with a pouring sealant for embedding the pressure measuring part, and a vertical distance between the top surface of the pouring sealant and the opening structure is smaller than a vertical distance between the first position and the opening structure. The beneficial effects are that: the pouring sealant is embedded in the pressure measuring portion, so that the detection sensitivity is improved, the vertical distance between the top surface of the pouring sealant and the opening structure is smaller than the vertical distance between the first position and the opening structure, the colloid and the shell of the effective area between the first position and the substrate still have high adhesive force, and the good waterproof effect of the colloid is guaranteed.
Further preferably, the second smooth surface includes an arc-shaped inner side wall, the first smooth surface of the extension portion is connected with the arc-shaped inner side wall, and the top surface of the potting adhesive is not higher than the arc-shaped inner side wall. The beneficial effects are that: can prevent effectively that follow-up glue that irritates at packaging structure from taking place "climbing to glue" phenomenon, and avoid the embedment is sticky to be in the surface of extension portion, and the glue can be in the same place product and test lid stick to in the sealed test of influence follow-up test procedure to and when absorbing in the surface mounting technique in-process, the glue can be in the same place product and suction nozzle stick to.
Preferably, the pressure measuring part comprises a signal collecting part and a signal processing part which are electrically connected, the signal processing part is electrically connected with the substrate, the signal collecting part is opposite to the opening structure, and the vertical distance between the first position and the opening structure is smaller than the vertical distance between the signal collecting part and any one of the signal processing part and the opening structure. The beneficial effects are that: the detection sensitivity of the signal acquisition part is improved, the colloid and the shell of the effective area between the first position and the substrate still have high adhesion, and the good waterproof effect of the colloid is ensured.
Preferably, the signal processing portion is disposed on the top surface of the substrate, the signal collecting portion is stacked on the top of the signal processing portion, and a vertical distance between the first position and the opening structure is smaller than a vertical distance between the top surface of the signal collecting portion and the opening structure. The beneficial effects are that: the colloid and the shell in the effective area between the first position and the substrate still have high adhesion, and the good waterproof effect of the colloid is ensured.
Preferably, the signal acquisition part and the signal processing part are both arranged on the top surface of the substrate, and the vertical distance between the first position and the opening structure is smaller than the vertical distance between the top surface of any one of the signal acquisition part and the signal processing part and the opening structure. The beneficial effects are that: the colloid and the shell in the effective area between the first position and the substrate still have high adhesion, and the good waterproof effect of the colloid is ensured.
Preferably, the pressure measuring part further comprises a plurality of wires, a vertical distance between the first position and the opening structure is smaller than a vertical distance between any one of the plurality of wires and the opening structure, the signal acquisition part is electrically connected with the signal processing part through the plurality of wires, and the signal processing part is electrically connected with the substrate through the plurality of wires. The beneficial effects are that: the colloid and the shell in the effective area between the first position and the substrate still have high adhesion, so that the good waterproof effect of the colloid is ensured, and the detection sensitivity is improved.
Preferably, the substrate is provided with a hollow structure, the signal acquisition part is opposite to the hollow structure and spans the hollow structure to be arranged on the top surface of the substrate so as to form a sealing structure surrounding the top opening of the hollow structure, and the signal acquisition part senses the pressure outside the substrate through the hollow structure. The beneficial effects are that: the detection sensitivity of the signal acquisition part is improved.
Preferably, the waterproof pressure measuring equipment further comprises an electric transmission structure, wherein the electric transmission structure is arranged on the outer shell so as to be electrically connected with a grounding end and facilitate static electricity derivation. The beneficial effects are that: the static charge accumulated on the surface of the shell can be quickly released, and the antistatic capability of the device can be improved.
Drawings
FIG. 1 is a longitudinal cross-sectional view of a first waterproof pressure measurement device of the present invention;
fig. 2 is a schematic structural view of the first waterproof pressure measuring apparatus shown in fig. 1, in which the continuous relationship between curved surfaces is formed in a state of continuous curvature;
FIG. 3 is a longitudinal cross-sectional view of a second waterproof pressure measurement device of the present invention;
fig. 4 is a longitudinal sectional view of a third waterproof pressure measuring device according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and similar words are intended to mean that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.
In order to solve the problems in the prior art, the embodiment of the utility model provides a waterproof pressure measuring device, which improves the detection sensitivity of a pressure measuring part, can effectively prevent the subsequent glue filled in a packaging structure from generating a glue climbing phenomenon, and ensures the good waterproof effect of the glue.
Fig. 1 is a longitudinal sectional view of a first waterproof pressure measuring device according to the present invention.
In some embodiments of the utility model, the waterproof pressure measuring equipment comprises a packaging structure surrounded by a shell and a substrate, a pressure measuring part and a smooth surface;
an extension part is arranged at the top of the shell, the extension part is enclosed into an opening structure communicated with the interior of the packaging structure, and the opening structure faces to a first direction;
the pressure measuring part is arranged in the packaging structure and electrically connected with the substrate, and the pressure measuring part is arranged opposite to the opening structure.
Specifically, referring to fig. 1, the first waterproof pressure measuring device 1 includes a housing 11 and a substrate 12, where the housing 11 is provided with an outer extension portion 111, the smooth surface 13 includes a first smooth surface 131 that is provided on the outer extension portion 111 and faces the first direction and a second smooth surface 132 that is provided on an inner side wall of the housing 11, and the second smooth surface 132 is connected to the first smooth surface 131 and extends to a first position 21 along the inner side wall of the housing 11; the vertical distance between the first position 21 and the opening structure (not shown) is smaller than the vertical distance between the top surface of the pressure measuring part (not shown) and the opening structure (not shown).
The housing 11 is a structure with two open ends, one open end is fixedly connected with the substrate 12, and the other open end is provided with the annular extension structure 111.
In some embodiments of the present invention, the substrate is a conductive substrate, and in particular, the substrate 12 is a PCB substrate.
In some embodiments of the present invention, the housing 11 is a conductive housing.
In some embodiments of the utility model, the roughness of the smooth surface is less than the roughness of the rest of the inner side walls of the shell, and the rest of the inner side walls of the shell are the inner side walls of the shell except the second smooth surface, so that the phenomenon of glue climbing of glue subsequently poured in the packaging structure can be effectively prevented, and the problems that the thickness of the glue above the pressure measuring part is changed due to the phenomenon of glue climbing, the stress of the glue is changed, the performance drift of the sensor is caused, the sealing test in the subsequent test process is influenced, the glue can stick a product and a test cover together, the glue can stick the product and a suction nozzle together when the suction is carried out in the surface assembly technical process, and the like are solved.
In some embodiments of the utility model, the smooth surface is formed by attaching or spraying a dense, smooth, and low-bonding material. Optionally, the material with small compact and smooth bonding force is a small molecule nano material or a material with large surface tension, such as a hydrophobic material.
In some possible embodiments of the present invention, the smooth surface is formed by spraying a dry film smooth coating on the outer extension portion and at least a portion of the inner side wall of the housing, where the dry film smooth coating is formed by mixing epoxy, phenolic resin, silicone and wear-resistant filler, and then baking at a high temperature.
In other embodiments of the present invention, the smooth surface is formed by a polishing process, that is, the surface of the extension portion and at least a portion of the surface of the inner sidewall of the housing are reduced in roughness by the polishing process, so as to increase the flatness thereof.
Fig. 2 is a schematic structural view of the continuous relationship between the curved surfaces shown in fig. 1, in which the curvature is continuous.
In some embodiments of the present invention, the first smooth surface and the second smooth surface are sequentially connected to the remaining inner side walls of the housing to form a continuous smooth curved surface, and referring to fig. 2, a curved surface continuous relationship between the curved surface formed by the first smooth surface 131 and the curved surface formed by the second smooth surface 132 is curvature continuity, and a curved surface continuous relationship between the curved surface formed by the second smooth surface 132 and the curved surface formed by the remaining inner side walls 112 of the housing is curvature continuity.
The curvature continuity means: the end points of the connecting positions of the two adjacent geometric structures are coincident and have the same tangential direction, and the curvature of each connecting point is also the same.
In some embodiments of the present invention, the encapsulation structure is filled with a potting adhesive embedding the pressure measuring portion, and a vertical distance between a top surface of the potting adhesive and the opening structure is smaller than a vertical distance between the first position and the opening structure, so that a colloid and a housing in an effective region between the first position and the substrate still have high adhesion, and a good waterproof effect of the colloid is ensured, so as to prevent the potting adhesive from being disposed on the extension portion, and the colloid from adhering a product and a test cover together in a sealing test that affects a subsequent test process, and the colloid adheres the product and a suction nozzle together when the suction is performed in a surface assembly technical process.
Furthermore, the smooth surface of second includes the arc inside wall, the first smooth surface of epitaxial portion with the arc inside wall meets, the top surface of casting glue is not higher than the arc inside wall.
In some embodiments of the present invention, the pressure measuring unit includes a signal collecting unit and a signal processing unit electrically connected to each other, the signal processing unit is electrically connected to the substrate, the signal collecting unit is opposite to the opening structure, so as to improve the detection sensitivity of the signal collecting unit, and a vertical distance between the first position and the opening structure is smaller than a vertical distance between any one of the signal collecting unit and the signal processing unit and the opening structure.
In some embodiments of the present invention, the voltage measuring portion further includes a plurality of wires, a vertical distance between the first position and the opening structure is smaller than a vertical distance between any one of the plurality of wires and the opening structure, the signal collecting portion and the signal processing portion are electrically connected through the plurality of wires, and the signal processing portion and the substrate are electrically connected through the plurality of wires. In some embodiments of the present invention, the plurality of wires are alloy wires.
In some embodiments of the present invention, the signal processing portion is disposed on the top surface of the substrate, the signal collecting portion is stacked on the top of the signal processing portion, and a vertical distance between the first position and the opening structure is smaller than a vertical distance between the top surface of the signal collecting portion and the opening structure, so that a colloid and a shell in an effective area between the first position and the substrate still have high adhesion, and a good waterproof effect of the colloid is ensured.
In some specific embodiments of the present invention, referring to fig. 1, the first waterproof pressure measuring apparatus 1 includes a signal processing portion 14 and a signal collecting portion 15, the signal collecting portion 15 is fixed to the top of the signal processing portion 14 by a first adhesive 16, and the signal processing portion 14 and the signal collecting portion 15 are electrically connected by a first alloy wire 17; the bottom of the signal processing unit 14 is bonded and fixed to the substrate 12 by a second adhesive 18, the signal processing unit 14 is electrically connected to the substrate 12 by a second alloy wire 19, a vertical distance between the first position 21 and the opening structure (not shown) is a first vertical distance L1, a vertical distance between the top surface of the signal collecting unit 15 and the opening structure (not shown) is a second vertical distance L2, and the first vertical distance L1 is smaller than the second vertical distance L2.
In some specific embodiments of the present invention, referring to fig. 1, the first waterproof pressure measuring device 1 is a waterproof barometer, the potting adhesive 110 filled in the housing 11 embeds the signal processing portion 14, the signal collecting portion 15, the first alloy wire 17 and the second alloy wire 19, the potting adhesive 110 is solid and elastic, when the first waterproof pressure measuring device 1 works, the potting adhesive 110 can be deformed in a recoverable manner in response to a change in pressure, and after the signal collecting portion 15 and the signal processing portion 14 detect the recoverable deformation, the sensed pressure information is transmitted to an external circuit structure through the substrate 12, so as to achieve measurement of air pressure.
In some embodiments of the present invention, referring to fig. 1, an opening structure (not shown) is disposed at the top of the housing 11 for facilitating pressurization, and the opening structure (not shown) is opposite to the signal collecting portion 15, so that the pressure can be directly transmitted to the signal collecting portion 15 through the potting adhesive 110, thereby improving the detection sensitivity of the signal collecting portion 15.
In some specific embodiments of the present invention, the signal collecting unit 15 is an MEMS chip, that is, an electromechanical system manufactured on a silicon chip by using a semiconductor technology, and is used for converting external physical and chemical signals into electrical signals.
In some embodiments of the present invention, the signal processing unit 14 is an ASIC chip, i.e., an Application Specific Integrated Circuit.
Fig. 3 is a longitudinal sectional view of a second waterproof pressure measuring device according to the present invention.
In other embodiments of the present invention, referring to fig. 1 and 3, the second waterproof pressure measuring device 2 differs from the first waterproof pressure measuring device 1 in that: the signal collecting part 15 and the signal processing part 14 are both disposed on the top surface of the substrate 12, and a vertical distance between the first position 21 and the opening structure (not shown) is smaller than a vertical distance between the top surface of any one of the signal collecting part 15 and the signal processing part 14 and the opening structure (not shown). Specifically, a vertical distance between the first position 21 and the opening structure (not shown) is a first vertical distance L1, a vertical distance between the top surface of the signal collection part 15 and the opening structure (not shown) is a second vertical distance L2, a vertical distance between the top surface of the signal processing part 14 and the opening structure (not shown) is a third vertical distance L3, and the first vertical distance L1 is smaller than any one of the second vertical distance L2 and the third vertical distance L3.
Further, the signal collecting part 15 is fixed on the top surface of the substrate 12 by the first adhesive 16, the signal processing part 14 is fixed on the top surface of the substrate 12 by the second adhesive 18, and the signal collecting part 15 is opposite to an opening structure (not shown) on the top of the housing 11, so as to improve the detection sensitivity.
In an embodiment of the present invention, a vertical distance between the first position and the opening structure is a vertical distance between the first position and an end surface where the opening structure is located, and a vertical distance between the top surface of the pressure measuring unit and the opening structure is a vertical distance between the top surface of the pressure measuring unit and the end surface where the opening structure is located; the vertical distance between the top surface of the signal acquisition part and the opening structure is the vertical distance between the top surface of the signal acquisition part and the end surface where the opening structure is located; the vertical distance between the top surface of the signal processing part and the opening structure is the vertical distance between the top surface of the signal processing part and the end surface where the opening structure is located.
Fig. 4 is a longitudinal sectional view of a third waterproof pressure measuring device according to the present invention.
In still other embodiments of the present invention, referring to fig. 4 and 3, the third waterproof pressure measuring device 3 differs from the second waterproof pressure measuring device 2 in that: the substrate 12 is provided with a hollow structure 121, the signal acquisition portion 15 is opposite to the hollow structure 121, and is disposed on the top surface of the substrate 12 across the hollow structure 121 to form a sealing structure surrounding an opening at the top of the hollow structure 121, so that the sealing structure isolates the packaging structure from an external environment.
Further, referring to fig. 4, the top of the signal collecting part 15 is opposite to an opening structure (not shown) at the top of the housing 11, so that the signal collecting part 15 senses the pressure near one side of the top of the housing 11 through the opening structure (not shown), and the bottom of the signal collecting part 15 is opposite to the hollow structure 121, so that the signal collecting part 15 senses the pressure outside the substrate 12 through the hollow structure 121, that is, the signal collecting part 15 can receive the pressure change condition from the top and the bottom at the same time, thereby improving the detection sensitivity.
In some embodiments of the present invention, the waterproof pressure measuring apparatus further includes an electrical transmission structure disposed on the housing to electrically connect to a ground terminal and facilitate the discharge of static electricity, so that static charges accumulated on the surface of the housing can be rapidly discharged, and the antistatic capability of the device can be improved.
In some embodiments of the present invention, the electrical transmission structure is a metal wire, one end of which is connected to the housing, and the other end of which is electrically connected to a ground terminal.
Although the embodiments of the present invention have been described in detail hereinabove, it is apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it is to be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the following claims. Moreover, the utility model as described herein is capable of other embodiments and of being practiced or of being carried out in various ways.
Claims (11)
1. A waterproof pressure measuring device comprises a packaging structure enclosed by a shell and a substrate, and is characterized by further comprising a pressure measuring part and a smooth surface;
an extension part is arranged at the top of the shell, the extension part is enclosed into an opening structure communicated with the interior of the packaging structure, and the opening structure faces to a first direction;
the pressure measuring part is arranged in the packaging structure and electrically connected with the substrate, and the pressure measuring part is arranged opposite to the opening structure;
the smooth surface comprises a first smooth surface arranged on the extension part and facing the first direction and a second smooth surface arranged on the inner side wall of the shell, and the second smooth surface is connected with the first smooth surface and extends to a first position along the inner side wall of the shell;
the vertical distance between the first position and the opening structure is smaller than the vertical distance between the top surface of the pressure measuring part and the opening structure.
2. The waterproof pressure measurement device according to claim 1, wherein the roughness of the smooth surface is less than the roughness of the remaining interior sidewalls of the housing, the remaining interior sidewalls of the housing being interior sidewalls of the housing other than the second smooth surface.
3. The waterproof pressure measuring equipment according to claim 2, wherein a curved surface continuity relationship between the curved surface formed by the first smooth surface and the curved surface formed by the second smooth surface is curvature continuity, and a curved surface continuity relationship between the curved surface formed by the second smooth surface and the curved surface formed by the remaining inner side wall of the housing is curvature continuity.
4. The waterproof pressure measuring device according to claim 1, wherein a potting adhesive embedding the pressure measuring portion is filled in the packaging structure, and a vertical distance between a top surface of the potting adhesive and the opening structure is smaller than a vertical distance between the first position and the opening structure.
5. The waterproof pressure measuring device according to claim 4, wherein the second smooth surface comprises an arc-shaped inner side wall, the first smooth surface of the outer extension portion is connected with the arc-shaped inner side wall, and the top surface of the potting adhesive is not higher than the arc-shaped inner side wall.
6. The waterproof pressure measuring equipment according to claim 1, wherein the pressure measuring part comprises a signal collecting part and a signal processing part which are electrically connected, the signal processing part is electrically connected with the substrate, the signal collecting part is opposite to the opening structure, and a vertical distance between the first position and the opening structure is smaller than a vertical distance between any one of the signal collecting part and the signal processing part and the opening structure.
7. The waterproof pressure measuring device according to claim 6, wherein the signal processing portion is disposed on the top surface of the substrate, the signal collecting portion is stacked on top of the signal processing portion, and a vertical distance between the first position and the opening structure is smaller than a vertical distance between the top surface of the signal collecting portion and the opening structure.
8. The waterproof pressure measuring device according to claim 6, wherein the signal collecting portion and the signal processing portion are both disposed on the top surface of the substrate, and a vertical distance between the first position and the opening structure is smaller than a vertical distance between a top surface of any one of the signal collecting portion and the signal processing portion and the opening structure.
9. The waterproof pressure measuring device according to claim 6, wherein the pressure measuring portion further comprises a plurality of wires, a vertical distance between the first position and the opening structure is smaller than a vertical distance between any one of the plurality of wires and the opening structure, the signal collecting portion and the signal processing portion are electrically connected through the plurality of wires, and the signal processing portion and the substrate are electrically connected through the plurality of wires.
10. The waterproof pressure measuring device according to claim 6, wherein the substrate is provided with a hollow structure, the signal collecting part is opposite to the hollow structure and is arranged on the top surface of the substrate across the hollow structure to form a sealing structure around an opening at the top of the hollow structure, and the signal collecting part senses the pressure outside the substrate through the hollow structure.
11. The waterproof pressure measurement device according to claim 1, further comprising an electrical transmission structure disposed in the housing to electrically connect to ground and facilitate static electricity removal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122122757.6U CN215439668U (en) | 2021-09-03 | 2021-09-03 | Waterproof pressure measuring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122122757.6U CN215439668U (en) | 2021-09-03 | 2021-09-03 | Waterproof pressure measuring equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215439668U true CN215439668U (en) | 2022-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122122757.6U Active CN215439668U (en) | 2021-09-03 | 2021-09-03 | Waterproof pressure measuring equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215439668U (en) |
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2021
- 2021-09-03 CN CN202122122757.6U patent/CN215439668U/en active Active
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