CN106197833B - Pressure sensor - Google Patents
Pressure sensor Download PDFInfo
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- CN106197833B CN106197833B CN201610779294.1A CN201610779294A CN106197833B CN 106197833 B CN106197833 B CN 106197833B CN 201610779294 A CN201610779294 A CN 201610779294A CN 106197833 B CN106197833 B CN 106197833B
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- water inlet
- pressure sensor
- conductive terminal
- main body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
Abstract
The invention relates to a pressure sensor which is characterized by comprising a main body and a pressure sensor, wherein the pressure sensor is arranged on the main body; this kind of pressure sensor through set up two at least water inlets on the water inlet pipeline, both can gather the multiple spot pressure value, and the accessible increases the water inlet again, enlarges the collection scope, improves the accuracy of gathering the pressure value, avoids having the difference because of the water pressure around the water inlet, and is not accurate enough.
Description
Technical Field
The invention relates to the technical field of pressure sensors.
Background
At present, a pressure sensor is applied to a plurality of technical fields, in the field of water purifiers, the pressure sensor is used for collecting the pressure of flowing water flow, however, the existing pressure sensor comprises a main body and a pressure sensor, the pressure sensor is arranged on the main body, a water inlet pipeline is arranged on the main body and is communicated with the pressure sensor, the water inlet pipeline is only provided with one water inlet, when water pressure information in a water channel is collected, water enters from the water inlet and flows into a pressure sensing cavity through the water inlet pipeline, and the pressure sensor collects a water pressure value; however, the pressure sensor of the above conventional structure has the following disadvantages: (1) because only one water inlet is provided, the traditional pressure sensor can only collect the pressure value of one point of the water inlet and cannot collect the pressure values of multiple points; furthermore, when the water pressure around the water inlet is different, the pressure value of a single water inlet is obviously collected, which is not accurate enough; (2) the tightness of the pressure sensing cavity periphery is poor, namely: the waterproof performance is not good, and the accuracy and the stability of the numerical value collected by the pressure sensor are easily influenced.
Disclosure of Invention
The present invention is directed to overcome the disadvantages of the prior art, and to provide a pressure sensor including at least two water inlets, which can not only improve the accuracy of pressure value collection, but also collect pressure values at multiple points.
The purpose of the invention is realized as follows:
a pressure sensor comprises a main body and a pressure sensor, wherein the pressure sensor is arranged on the main body, a water inlet pipeline is arranged on the main body, and the water inlet pipeline is communicated with the pressure sensor; this kind of pressure sensor through set up two at least water inlets on the water inlet pipeline, both can gather the multiple spot pressure value, and the accessible increases the water inlet again, enlarges the collection scope, improves the accuracy of gathering the pressure value, avoids having the difference because of the water pressure around the water inlet, and is not accurate enough.
The aim of the invention can also be solved by the following technical measures:
furthermore, the water inlet pipeline comprises a water inlet branch, inlets of the water inlet branches are connected with the water inlets, and outlets of the water inlet branches are communicated with the pressure sensor; that is to say, same water branch road of intaking has two at least water inlets to gather water pressure numerical value by same pressure-sensitive transducer, this kind of setting of a plurality of water inlets is the range of enlarging the collection in fact, improves the degree of accuracy of gathering the pressure value, avoids because of there is the difference in the water pressure around the water inlet, and causes and gathers inaccurately.
Further, be provided with a forced induction chamber in the main part, the forced induction chamber embeds there is pressure sensor, the branch road export intercommunication of intaking pressure sensor.
Furthermore, the main body comprises a water inlet part and a fixed cover part, the water inlet part is provided with a water inlet branch and a lower induction cavity which are communicated with each other, the lower induction cavity is positioned at the top of the water inlet part, the fixed cover part is provided with an upper induction cavity and a conductive terminal groove, the upper induction cavity is arranged at the bottom of the fixed cover part, the top of the water inlet part is abutted against the bottom of the fixed cover part, the outer wall of the abutted part is also fixedly provided with a waterproof cover so that the upper induction cavity is communicated with the lower induction cavity, the periphery of the upper induction cavity is sealed to form a pressure induction cavity, the conductive terminal groove is internally provided with a conductive terminal which is electrically connected with a pressure sensor, one end of a waterproof wire is inserted into the conductive terminal groove, the waterproof wire is sleeved on the waterproof wire and is connected with the upper part of the fixed cover part, and the pressure sensor structure simply splices the water inlet part and the fixed cover part together, the abutting part of the pressure sensor and the pressure sensor is sealed and fixed through the waterproof cover, so that the sealing performance of the pressure sensor and the pressure sensor can be obviously improved, and the accuracy and the stability of the value acquired by the pressure sensor can be ensured; moreover, the device has the advantages of simple and reasonable integral structure, small volume, light weight, simple assembly and disassembly and convenient installation and maintenance.
As another embodiment, the water inlet pipeline comprises two or more independent water inlet branches, the inlet of each water inlet branch is respectively used as an independent water inlet, an independent pressure sensor is respectively arranged at the position of the main body corresponding to the outlet of each water inlet branch, and each pressure sensor is communicated with the outlet of each corresponding water inlet branch; that is to say, through setting up many water inlet branch roads, and every branch road corresponds a water inlet, makes a pressure-sensitive transducer, but the multiple spot pressure value is gathered simultaneously to satisfy various use needs.
Furthermore, independent pressure sensing cavities are arranged on the main body corresponding to the positions of the outlets of the independent water inlet branches, an independent pressure sensor is arranged in each pressure sensing cavity, and each water inlet branch outlet is communicated with the corresponding pressure sensing cavity; that is, each independent water inlet branch is independently collected by an independent pressure sensor.
Furthermore, the main body comprises a water inlet part and a fixed cover part, the water inlet part is provided with two or more independent water inlet branch circuits and a plurality of lower induction cavities which are respectively communicated with outlets of each corresponding water inlet branch circuit, each lower induction cavity is positioned at the top of the water inlet part, the fixed cover part is provided with two or more upper induction cavities and corresponding conductive terminal grooves, each upper induction cavity is arranged at the bottom of the fixed cover part, the top of the water inlet part is abutted against the bottom of the fixed cover part, and the outer wall of the abutted part is also fixedly provided with a waterproof cover, so that each upper induction cavity is communicated with each corresponding lower induction cavity, the periphery of each upper induction cavity is sealed to form two or more independent pressure induction cavities, each conductive terminal groove is internally provided with a conductive terminal which is electrically connected with a corresponding pressure inductor, one end of a waterproof wire is inserted into the conductive terminal groove, and the waterproof wire is sleeved on the waterproof wire, And connected with the upper part of the fixed cover part; according to the pressure sensor structure, the water inlet part and the fixing cover are simply spliced together, and the abutted part of the water inlet part and the fixing cover is sealed and fixed through the waterproof cover, so that the sealing performance of the pressure sensor structure can be obviously improved, and the accuracy and the stability of the pressure sensor for collecting numerical values are ensured; moreover, the device has the advantages of simple and reasonable integral structure, small volume, light weight, simple assembly and disassembly and convenient installation and maintenance.
Furthermore, an annular clamping seam which is concave inwards is arranged at the upper part of the water inlet part, the waterproof cover is an aluminum ring, the aluminum ring and the upper part of the water inlet part are fixed by insert injection, and one end of the aluminum ring is inserted into the clamping seam; the waterproof cover is clamped into the clamping seam of the outer wall of the water inlet part, so that the fixing effect of the waterproof cover can be improved, and the sealing performance of the waterproof cover can be further improved.
Furthermore, the aluminum ring and the fixed cover part are fixed through riveting, and the fixing and sealing effects are better.
Furthermore, the outer wall of the middle part of the waterproof wire is provided with an annular convex part, the lower part of the waterproof wire is inserted into the conductive terminal groove of the fixed cover part, a waterproof wire sealing ring is arranged between the annular convex part and the top of the fixed cover part at the periphery of the opening of the conductive terminal groove, the waterproof wire fixing sleeve is a fixing nut, and the fixing nut is sleeved on the waterproof wire and is in threaded connection with the upper part of the fixed cover part, so that the waterproof wire is firmly connected with the fixed cover part through the fixing nut, and the sealing performance of the waterproof wire can be improved.
The invention has the following beneficial effects:
(1) according to the pressure sensor, the at least two water inlets are formed in the water inlet pipeline, so that multipoint pressure values can be collected, the collection range can be expanded by increasing the water inlets, the accuracy of the collected pressure values is improved, and the condition that the pressure values are not accurate enough due to the difference of water pressures around the water inlets is avoided; such as: the same water branch of intaking has two at least water inlets to gather water pressure numerical value by same pressure-sensitive transducer, the setting of this kind of a plurality of water inlets is the extension collection scope in fact, improves the degree of accuracy of gathering the pressure value, avoids having the difference because of the water pressure around the water inlet, and causes and gathers inaccurately. For another example: through setting up many water inlet branch roads, and every branch road corresponds a water inlet, makes a pressure-sensitive sensor, can gather the multiple spot pressure value simultaneously to satisfy various use needs.
(2) Furthermore, the pressure sensor structure can obviously improve the sealing performance and ensure the accuracy and stability of the pressure sensor for collecting numerical values by simply splicing the water inlet part and the fixing cover together and sealing and fixing the butted part of the water inlet part and the fixing cover through the waterproof cover; moreover, the device has the advantages of simple and reasonable integral structure, small volume, light weight, simple assembly and disassembly and convenient installation and maintenance.
(3) And in addition, the waterproof cover is clamped into the clamping seam of the outer wall of the water inlet part, so that the fixing effect of the waterproof cover can be improved, and the sealing performance of the waterproof cover can be further improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a pressure sensor of the present invention.
Fig. 2 is a schematic diagram of a second embodiment of the pressure sensor of the present invention.
Detailed Description
The first embodiment is as follows: as shown in fig. 1, a pressure sensor comprises a main body 1 and a pressure sensor 3, wherein the pressure sensor 3 is arranged on the main body 1, a water inlet pipeline 5 is arranged on the main body 1, and the water inlet pipeline 5 is communicated with the pressure sensor 3, and is characterized in that at least two water inlets 41 and 42 are arranged on the water inlet pipeline 5; the water inlet pipeline 5 comprises a water inlet branch 51, an inlet of the water inlet branch 51 is connected with each water inlet 41, 42, and an outlet of the water inlet branch 51 is communicated with the pressure sensor 3.
In this embodiment, a pressure sensing cavity 6 is arranged on the main body 1, the pressure sensor 3 is arranged in the pressure sensing cavity 6, and an outlet of the water inlet branch 51 is communicated with the pressure sensor 3; as a more specific scheme, the main body 1 comprises a water inlet part 12 and a fixed cover part 11, the water inlet part 12 is provided with a water inlet branch 51 and a lower induction cavity 62 which are communicated with each other, the lower induction cavity 62 is positioned at the top of the water inlet part 12, the fixed cover part 11 is provided with an upper induction cavity 61 and a conductive terminal groove 7, the upper induction cavity 61 is arranged at the bottom of the fixed cover part 11, the top of the water inlet part 12 is abutted against the bottom of the fixed cover part 11, and a waterproof cover 9 is further fixed on the outer wall of the abutted part, so that the upper sensing cavity 61 is communicated with the lower sensing cavity 62, and the periphery is sealed to form a pressure sensing cavity 6, a conductive terminal 8 is arranged in the conductive terminal groove 7, the conductive terminal 8 is electrically connected with the pressure sensor 3, one end of the waterproof wire 10 is inserted into the conductive terminal groove 7, and the waterproof wire fixing sleeve 2 is sleeved on the waterproof wire 10 and connected with the upper part of the fixing cover part 11.
In order to further improve the sealing effect, an annular clamping seam 121 which is concave inwards is arranged at the upper part of the water inlet part 12, the waterproof cover 9 is an aluminum ring, the aluminum ring and the upper part of the water inlet part 12 are fixed by insert injection, one end of the aluminum ring is inserted into the clamping seam 121, and the aluminum ring and the fixed cover part 11 are fixed by riveting.
In this embodiment, the outer wall of the middle portion of the waterproof wire 10 is provided with an annular convex portion 101, the lower portion of the waterproof wire 10 is inserted into the conductive terminal groove 7 of the fixed cover portion 11, a waterproof wire sealing ring 111 is arranged between the annular convex portion 101 and the top portion of the fixed cover portion 11 around the opening of the conductive terminal groove 7, the waterproof wire fixing sleeve 2 is a fixing nut, and the fixing nut is sleeved on the waterproof wire 10 and is in threaded connection with the upper portion of the fixed cover portion 11.
Example two: as shown in fig. 2, the present embodiment is similar to the first embodiment, and the difference is: the water inlet pipeline 5 comprises two or more independent water inlet branches 51 and 52, inlets of the water inlet branches 51 and 52 are respectively used as independent water inlets 41 and 42, independent pressure sensors 3 are respectively arranged on the main body 1 corresponding to outlets of the water inlet branches 51 and 52, and the pressure sensors 3 are communicated with outlets of the corresponding water inlet branches 51 and 52.
The main body 1 is provided with independent pressure sensing cavities 6 corresponding to the outlets of the independent water inlet branches 51 and 52, each pressure sensing cavity 6 is internally provided with an independent pressure sensor 3, and the outlets of the water inlet branches 51 and 52 are communicated with the corresponding pressure sensing cavity 6.
In this embodiment, the main body 1 includes a water inlet portion 12 and a fixed cover portion 11, the water inlet portion 12 is provided with two or more independent water inlet branches 51 and 52, and a plurality of lower sensing cavities 62 respectively communicated with outlets of the corresponding water inlet branches 51 and 52, each lower sensing cavity 62 is located at the top of the water inlet portion 12, the fixed cover portion 11 is provided with two or more upper sensing cavities 61 and corresponding conductive terminal grooves 7, each upper sensing cavity 61 is disposed at the bottom of the fixed cover portion 11, the top of the water inlet portion 12 abuts against the bottom of the fixed cover portion 11, and a waterproof cover 9 is further fixed on the outer wall of the abutting position, so that each upper sensing cavity 61 is communicated with each corresponding lower sensing cavity 62, and the periphery is sealed to form two or more independent pressure sensing cavities 6, each conductive terminal groove 7 is provided with a conductive terminal 8, the conductive terminal 8 is electrically connected with the corresponding pressure sensor 6, one end of each waterproof wire 10 is inserted into the conductive terminal groove 7 of the celebration, and each waterproof wire fixing sleeve 2 is sleeved on the corresponding waterproof wire 10 and connected with the upper part of the fixing cover part 11.
Of course, in the second embodiment, more independent water inlet branches 51 and independent water inlets 41 thereof can be further provided according to the use requirement to form more collection points, which will not be described in detail herein.
In the pressure sensors of the two embodiments, in the first embodiment, at least two water inlets 41 and 42 are arranged on the same water inlet branch 51, and the same pressure sensor 3 collects the water pressure value, the arrangement of the plurality of water inlets 41 and 42 actually enlarges the collection range, improves the accuracy of collecting the pressure value, and avoids inaccurate collection caused by the difference of the water pressures around the water inlets 41 and 42.
In the second embodiment, a plurality of water inlet branches 51 and 52 are provided on one pressure sensor, and each branch 51 and 52 corresponds to one water inlet 41 and 42, so that one pressure sensor 3 can simultaneously acquire multi-point pressure values to meet various use requirements.
Claims (5)
1. A pressure sensor comprises a main body (1) and a pressure sensor (3), wherein the pressure sensor (3) is arranged on the main body (1), a water inlet pipeline (5) is arranged on the main body (1), and the water inlet pipeline (5) is communicated with the pressure sensor (3), and the pressure sensor is characterized in that at least two water inlets (41 and 42) are arranged on the water inlet pipeline (5);
the water inlet pipeline (5) comprises a water inlet branch (51), the inlet of the water inlet branch (51) is connected with each water inlet (41, 42), and the outlet of the water inlet branch (51) is communicated with the pressure sensor (3);
a pressure sensing cavity (6) is formed in the main body (1), the pressure sensor (3) is arranged in the pressure sensing cavity (6), and the outlet of the water inlet branch (51) is communicated with the pressure sensor (3);
the main body (1) comprises a water inlet part (12) and a fixed cover part (11), the water inlet part (12) is provided with a water inlet branch (51) and a lower induction cavity (62) which are communicated with each other, the lower induction cavity (62) is positioned at the top of the water inlet part (12), the fixed cover part (11) is provided with an upper induction cavity (61) and a conductive terminal groove (7), the upper induction cavity (61) is arranged at the bottom of the fixed cover part (11), the top of the water inlet part (12) is abutted against the bottom of the fixed cover part (11), and a waterproof cover (9) is further fixed on the outer wall of the abutted part, so that the upper induction cavity (61) is communicated with the lower induction cavity (62), the periphery is sealed to form a pressure induction cavity (6), a conductive terminal (8) is arranged in the conductive terminal groove (7), the conductive terminal (8) is electrically connected with a pressure sensor (3), one end of a waterproof wire (10) is inserted into the conductive terminal groove (7), the waterproof wire fixing sleeve (2) is sleeved on the waterproof wire (10) and connected with the upper part of the fixing cover part (11).
2. A pressure sensor comprises a main body (1) and a pressure sensor (3), wherein the pressure sensor (3) is arranged on the main body (1), a water inlet pipeline (5) is arranged on the main body (1), and the water inlet pipeline (5) is communicated with the pressure sensor (3), and the pressure sensor is characterized in that at least two water inlets (41 and 42) are arranged on the water inlet pipeline (5);
the water inlet pipeline (5) comprises a water inlet branch (51), the inlet of the water inlet branch (51) is connected with each water inlet (41, 42), and the outlet of the water inlet branch (51) is communicated with the pressure sensor (3);
a pressure sensing cavity (6) is formed in the main body (1), the pressure sensor (3) is arranged in the pressure sensing cavity (6), and the outlet of the water inlet branch (51) is communicated with the pressure sensor (3);
the main body (1) comprises a water inlet part (12) and a fixed cover part (11), wherein the water inlet part (12) is provided with two or more independent water inlet branch circuits (51 and 52) and a plurality of lower induction cavities (62) which are respectively communicated with outlets of the corresponding water inlet branch circuits (51 and 52), each lower induction cavity (62) is positioned at the top of the water inlet part (12), the fixed cover part (11) is provided with two or more upper induction cavities (61) and corresponding conductive terminal grooves (7), each upper induction cavity (61) is arranged at the bottom of the fixed cover part (11), the top of the water inlet part (12) is abutted against the bottom of the fixed cover part (11), a waterproof cover (9) is further fixed on the outer wall of the abutted part, so that each upper induction cavity (61) is communicated with each corresponding lower induction cavity (62), the periphery of the upper induction cavity is sealed, and two or more independent pressure induction cavities (6) are formed, each conductive terminal groove (7) is internally provided with a conductive terminal (8), the conductive terminal (8) is electrically connected with the corresponding pressure sensor (6), one end of each waterproof wire (10) is inserted into the corresponding conductive terminal groove (7), and each waterproof wire fixing sleeve (2) is sleeved on the corresponding waterproof wire (10) and is connected with the upper part of the fixed cover part (11).
3. The pressure sensor according to claim 1 or 2, wherein the upper part of the water inlet part (12) is provided with an annular clamping seam (121) which is concave inwards, the waterproof cover (9) is an aluminum ring, the aluminum ring and the upper part of the water inlet part (12) are fixed by insert injection, and one end of the aluminum ring is inserted into the clamping seam (121).
4. A pressure sensor according to claim 3, wherein the aluminium ring is fixed to the fixed cover part (11) by riveting.
5. The pressure sensor according to claim 4, wherein the waterproof wire (10) is provided with an annular convex portion (101) on the outer wall of the middle portion, the lower portion of the waterproof wire (10) is inserted into the conductive terminal groove (7) of the fixing cover portion (11), a waterproof wire sealing ring (111) is arranged between the annular convex portion (101) and the top portion of the fixing cover portion (11) at the periphery of the opening of the conductive terminal groove (7), and the waterproof wire fixing sleeve (2) is a fixing nut which is sleeved on the waterproof wire (10) and is in threaded connection with the upper portion of the fixing cover portion (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610779294.1A CN106197833B (en) | 2016-08-31 | 2016-08-31 | Pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610779294.1A CN106197833B (en) | 2016-08-31 | 2016-08-31 | Pressure sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106197833A CN106197833A (en) | 2016-12-07 |
| CN106197833B true CN106197833B (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610779294.1A Active CN106197833B (en) | 2016-08-31 | 2016-08-31 | Pressure sensor |
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| CN (1) | CN106197833B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4588578B2 (en) * | 2004-12-16 | 2010-12-01 | 本田技研工業株式会社 | Brake device for vehicle |
| FR2943134B1 (en) * | 2009-03-13 | 2011-10-07 | Millipore Corp | DEVICE FOR DETERMINING A PHYSICAL SIZE OF A LIQUID CIRCULATING IN A CONDUIT |
| US9010191B2 (en) * | 2011-12-22 | 2015-04-21 | Rosemount Inc. | Pressure sensor module for sub-sea applications |
| CN204269281U (en) * | 2014-11-20 | 2015-04-15 | 武汉中航传感技术有限责任公司 | A kind of two remaining pressure sensor structure |
| CN205981537U (en) * | 2016-08-31 | 2017-02-22 | 佛山市云米电器科技有限公司 | Pressure sensor |
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2016
- 2016-08-31 CN CN201610779294.1A patent/CN106197833B/en active Active
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| CN106197833A (en) | 2016-12-07 |
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