Micro-water monitoring sensor and micro-water monitor

Abstract

The utility model belongs to the technical field of micro-water monitoring, and discloses a micro-water monitoring sensor and a micro-water monitor. The micro-water monitoring sensor comprises a shell structure, a probe circuit board and a core circuit board. The shell structure comprises a sealing shell and a probe protection shell which are connected with each other, and the probe protection shell is provided with a through hole. The probe circuit board and the core circuit board are connected with each other, the core circuit board is arranged in the sealing shell, and the sealing shell forms a sealing cavity on one side, deviating from the probe circuit board, of the core circuit board. The probe circuit board is electrically connected to the core circuit board and extends into the probe protection shell, the probe circuit board is provided with a plurality of mutually independent detection chips, and the plurality of detection chips can respectively monitor the micro-water content of the liquid to be detected penetrating through the port. The micro-water monitoring sensor can ensure the accuracy and reliability of micro-water monitoring.

Description

Technical Field

[0001] This utility model relates to the field of micro water monitoring technology, and in particular to a micro water monitoring sensor and a micro water monitoring instrument. Background Technology

[0002] In industrial production, the water content in oils and gases has a significant impact on the operating condition and service life of equipment. Water contamination in oil can directly lead to abnormal wear of mechanical structures and key functional components, and is a major cause of failures in large equipment.

[0003] Currently, there are two methods for monitoring trace water in oil. One method is to send oil samples for testing, which has problems such as long monitoring cycles, limited sampling, and lack of real-time monitoring. The other method is to use various traditional trace water monitoring instruments. However, existing trace water monitoring instruments are generally single-core designs, and they cannot function properly when the chip is damaged. Therefore, traditional trace water monitoring instruments suffer from low monitoring accuracy and insufficient reliability, making it difficult to meet users' needs for real-time, accurate, and reliable monitoring of trace water content.

[0004] Therefore, there is an urgent need for a micro-water monitoring sensor and micro-water monitoring instrument to solve the above problems. Utility Model Content

[0005] According to one aspect of the present invention, the objective is to provide a micro-water monitoring sensor that can ensure the accuracy and reliability of micro-water monitoring.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Micro-water monitoring sensors include:

[0008] The outer casing structure includes a sealed housing and a probe protective housing that are interconnected, wherein the probe protective housing is provided with a through port;

[0009] The probe circuit board and the core circuit board are interconnected. The core circuit board is disposed in the sealed housing. The sealed housing forms a sealed cavity on the side of the core circuit board away from the probe circuit board. The probe circuit board is electrically connected to the core circuit board and extends into the probe protective housing. The probe circuit board is provided with multiple independent detection chips. The multiple detection chips can monitor the trace water content of the liquid to be tested through the port.

[0010] As a preferred embodiment of the micro-water monitoring sensor provided by this utility model, the micro-water monitoring sensor further includes a power supply circuit board, which is disposed in the sealed housing, located in the sealed cavity, and can be electrically connected to the core circuit board.

[0011] As a preferred embodiment of the micro-water monitoring sensor provided by this utility model, the micro-water monitoring sensor further includes a buffer structure. The buffer structure is disposed on the side of the core circuit board facing the power circuit board. When the power circuit board presses against and is electrically connected to the core circuit board, the buffer structure can be sandwiched between the core circuit board and the power circuit board.

[0012] As a preferred embodiment of the micro-water monitoring sensor provided by this utility model, the core circuit board has a first connection hole, the power circuit board has a second connection hole, and the sealed housing has a preset connection hole. The first connection hole, the second connection hole, and the preset connection hole correspond to each other and are all configured for inserting connectors.

[0013] As a preferred embodiment of the micro-water monitoring sensor provided by this utility model, the power circuit board is provided with a positioning hole, and the sealed housing is provided with a preset positioning hole. The positioning hole corresponds to the preset positioning hole and is configured to insert a positioning component.

[0014] As a preferred embodiment of the micro-water monitoring sensor provided by this utility model, the micro-water monitoring sensor further includes a connector, the connector including a connector housing and a connector inner pin, the connector housing being disposed at the end of the sealing housing away from the probe protective housing, the connector inner pin being movable within the connector housing and electrically connected to the power circuit board, and the connector being configured for connecting the signal receiving device of the micro-water monitor.

[0015] As a preferred embodiment of the micro-water monitoring sensor provided by this utility model, the probe protective housing is inserted into one end of the sealed housing; the micro-water monitoring sensor also includes a sealing structure, which is disposed inside the sealed housing, sandwiched between the core circuit board and the probe protective housing, and abuts against the inner wall of the sealed housing.

[0016] As a preferred embodiment of the micro-water monitoring sensor provided by this utility model, the probe protective housing includes a connecting base and a probe protective cover. The connecting base is connected to the sealed housing, and the probe protective cover is connected to the end of the connecting base away from the sealed housing. The opening is formed on the probe protective cover.

[0017] As a preferred embodiment of the micro-water monitoring sensor provided by this utility model, there are multiple ports, and the multiple ports are evenly arranged at circumferential intervals on the probe protective cover.

[0018] According to another aspect of the present invention, the objective is to provide a micro-water monitor, the micro-water monitor comprising a signal receiving device and a micro-water monitoring sensor as described in any of the above embodiments, the micro-water monitoring sensor being electrically connected to the signal receiving device and capable of monitoring the micro-water content of the liquid to be tested.

[0019] The beneficial effects of this utility model are:

[0020] The micro-water monitoring sensor provided by this utility model includes a housing structure, a probe circuit board, and a core circuit board. The housing structure includes an interconnected sealed housing and a probe protective housing, the probe protective housing having a through-hole. The liquid to be tested can enter the probe protective housing through this through-hole. The probe circuit board and the core circuit board are interconnected, the core circuit board being disposed within the sealed housing, which forms a sealed cavity on the side of the core circuit board facing away from the probe circuit board. Placing waterproof components within this sealed cavity prevents water damage. The probe circuit board is electrically connected to the core circuit board and extends into the probe protective housing. The probe circuit board has multiple independent detection chips, each capable of monitoring the micro-water content of the liquid passing through the through-hole. By using multiple detection chips, even if one chip is damaged or malfunctions, the others can continue to function, ensuring the normal operation of the entire micro-water monitoring sensor and guaranteeing the accuracy and reliability of micro-water monitoring. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the micro-water monitoring sensor provided in an embodiment of this utility model;

[0023] Figure 2 This is an exploded view of the micro-water monitoring sensor provided in this embodiment of the utility model. Figure 1 ;

[0024] Figure 3 This is an exploded view of the micro-water monitoring sensor provided in this embodiment of the utility model. Figure 2 ;

[0025] Figure 4 This is an exploded view of the micro-water monitoring sensor provided in this embodiment of the utility model. Figure 3 ;

[0026] Figure 5 This is a schematic diagram of the structure of the sealing shell provided in an embodiment of the present invention.

[0027] In the picture:

[0028] 100. Sealed housing; 110. Pre-set connection hole; 120. Pre-set positioning hole;

[0029] 200. Probe protective housing; 210. Port; 220. Connecting base; 230. Probe protective cover;

[0030] 300. Probe circuit board; 310. Detection chip;

[0031] 400. Core circuit board; 410. First connection hole;

[0032] 500. Power supply circuit board; 510. Second connection hole;

[0033] 600. Buffer structure;

[0034] 700. Connector; 710. Connector housing; 720. Connector inner pin;

[0035] 800, sealing structure; 810, sealing ring assembly; 820, first sealing gasket; 821, first through hole; 830, second sealing gasket; 831, second through hole. Detailed Implementation

[0036] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connect," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0044] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0045] This embodiment provides a micro-water monitoring sensor and a micro-water monitoring instrument. The micro-water monitoring instrument includes a signal receiving device and the micro-water monitoring sensor provided in this embodiment. The micro-water monitoring sensor is electrically connected to the signal receiving device and can monitor the micro-water content of the liquid to be tested, and transmit raw data to the signal receiving device. In this embodiment, the signal receiving device can specifically be a device host, a data acquisition board capable of receiving 485 signals, or a module capable of receiving 485 signals and converting them into 4-20 mA signals. Through this module, it can be directly connected to a DCS distributed control system, etc.

[0046] Figure 1 A schematic diagram of the micro-water monitoring sensor provided in an embodiment of the present invention is shown; Figure 2 This diagram shows an exploded view of the micro-water monitoring sensor provided in an embodiment of the present invention. Figure 1 . Reference Figure 1 and Figure 2 The micro-water monitoring sensor provided in this embodiment includes a housing structure, a probe circuit board 300, and a core circuit board 400.

[0047] Specifically, the outer casing structure includes a sealed housing 100 and a probe protective housing 200 connected to each other, the probe protective housing 200 being provided with a through-hole 210. A probe circuit board 300 and a core circuit board 400 are connected to each other, the core circuit board 400 being disposed within the sealed housing 100, and the sealed housing 100 forming a sealed cavity on the side of the core circuit board 400 opposite to the probe circuit board 300. By placing components requiring waterproofing within the aforementioned sealed cavity, water damage can be prevented.

[0048] More specifically, the probe circuit board 300 is electrically connected to the core circuit board 400 and extends into the probe protective housing 200. The probe circuit board 300 and the core circuit board 400 are configured to collect raw data on the trace moisture content of the liquid to be tested. The probe circuit board 300 is provided with multiple independent detection chips 310, each capable of monitoring the trace moisture content of the liquid passing through the port 210. In this embodiment, the number of detection chips 310 is four. By providing multiple detection chips 310, if one detection chip 310 is damaged or malfunctions, the others can continue to be used, thus ensuring the normal operation of the entire trace moisture monitoring sensor and guaranteeing the accuracy and reliability of trace moisture monitoring.

[0049] It should be noted that, in this embodiment, the monitoring pins of the detection chip 310 are waterproofed and oil-proofed using epoxy resin material. Furthermore, the detection chip 310 provided in this embodiment is equipped with a filtering algorithm model to improve the accuracy of the test data.

[0050] More specifically, continue to refer to Figure 2 The micro-water monitoring sensor also includes a power supply circuit board 500. The power supply circuit board 500 is coaxially disposed in the sealed housing 100, located in the sealed cavity, and can be electrically connected to the core circuit board 400 to supply power to the core circuit board 400 and the probe circuit board 300.

[0051] Continue to refer to Figure 1 and Figure 2 The micro-water monitoring sensor also includes a connector 700, which comprises a connector housing 710 and a connector inner pin 720. The connector housing 710 is located at the end of the sealed housing 100 away from the probe protective housing 200. The connector inner pin 720 is movable within the connector housing 710, capable of pressing against and contacting the power circuit board 500 to achieve an electrical connection between the two. Under the pressure of the connector inner pin 720, the power circuit board 500 moves towards and contacts the core circuit board 400, achieving an electrical connection between the power circuit board 500 and the core circuit board 400. The connector 700 is configured to connect the signal receiving device of the micro-water monitor, achieving an electrical connection between the power circuit board 500, the core circuit board 400, and the probe circuit board 300 and the signal receiving device, enabling data transmission between the qualified signal receiving device of the micro-water monitoring sensor.

[0052] Figure 3 This diagram shows an exploded view of the micro-water monitoring sensor provided in an embodiment of the present invention. Figure 2 , Figure 4 This is an exploded view of the micro-water monitoring sensor provided in this embodiment of the utility model. Figure 3 . Reference Figures 1-4 The probe protective housing 200 is partially inserted into one end of the sealed housing 100. The micro-water monitoring sensor also includes a sealing structure 800. The sealing structure 800 is disposed within the sealed housing 100, sandwiched between the core circuit board 400 and the probe protective housing 200, and its periphery tightly abuts against the inner wall of the sealed housing 100.

[0053] Specifically, the sealing structure 800 includes a sealing ring platform 810. The outer periphery of the sealing ring platform 810 abuts against the inner wall of the sealing housing 100, and the upper end of the probe protective housing 200 is inserted into and positioned within the sealing ring platform 810. The core circuit board 400 is embedded on the inner side of the top of the sealing ring platform 810, and the core circuit board 400 is slightly lower than the top of the sealing ring platform 810.

[0054] More specifically, the sealing structure 800 further includes a sealing gasket assembly. This sealing gasket assembly is disposed inside the sealing ring platform 810, pressing against the upper end of the probe protective housing 200 and supported below the core circuit board 400, with its peripheral portion tightly abutting the inner wall of the sealing ring platform 810. The probe circuit board 300 can pass through the center of the sealing gasket assembly and connect to the core circuit board 400.

[0055] More specifically, in this embodiment, the sealing gasket assembly includes a first sealing gasket 820 and a second sealing gasket 830 coaxially abutting each other. The first sealing gasket 820 has a first through hole 821 along the axial direction, and the second sealing gasket 830 has a second through hole 831 along the axial direction. The first through hole 821 communicates with the second through hole 831, and the probe circuit board 300 can pass through the first through hole 821 and the second through hole 831.

[0056] Continue to refer to Figure 2 and Figure 3 The micro-water monitoring sensor also includes a buffer structure 600, which is disposed on the side of the core circuit board 400 facing the power circuit board 500. When the power circuit board 500 presses against and is electrically connected to the core circuit board 400, the buffer structure 600 is sandwiched between the core circuit board 400 and the power circuit board 500.

[0057] In this embodiment, refer to Figure 2 and Figure 4 The buffer structure 600 is specifically annular. The top of the sealing ring platform 810 has a tapering structure away from its bottom. The buffer structure 600 is specifically disposed on the periphery of the top of the sealing ring platform 810 to provide support for the power circuit board 500 when the power circuit board 500 is pressed against and electrically connected to the core circuit board 400.

[0058] Figure 5 A schematic diagram of the structure of the sealing housing provided in an embodiment of this utility model is shown. (Refer to...) Figures 3-5 The core circuit board 400 has a first connection hole 410, the power circuit board 500 has a second connection hole 510, and the sealed housing 100 has a preset connection hole 110. The first connection hole 410, the second connection hole 510, and the preset connection hole 110 correspond to each other and are all configured for inserting a connector. The diameter of the second connection hole 510 is slightly larger than the diameter of the connector, allowing the power circuit board 500 to move relative to the core circuit board 400. By inserting the connector, the positioning reliability of the core circuit board 400 and the power circuit board 500 within the sealed housing 100 can be enhanced, ensuring the accuracy of the electrical connection between the power circuit board 500 and the core circuit board 400. In this embodiment, the connector can specifically be a bolt.

[0059] Preferably, the power circuit board 500 has a positioning hole (not shown), and the sealing housing 100 has a preset positioning hole 120. The positioning hole corresponds to the preset positioning hole 120 and is configured for inserting a positioning component. When assembling the micro-water monitoring sensor, the positioning component can first be used to determine the position of the power circuit board 500 to facilitate the subsequent installation of the core circuit board 400. In this embodiment, the positioning component can specifically be a positioning bolt.

[0060] Continue to refer to Figures 1-4 The probe protective housing 200 includes a connecting base 220 and a probe protective cover 230. The connecting base 220 is inserted into the sealing ring platform 810 inside the sealing housing 100. The probe protective cover 230 is threadedly connected to the end of the connecting base 220 away from the sealing housing 100, and the through port 210 is opened on the probe protective cover 230.

[0061] Optionally, there may be multiple ports 210, which are evenly spaced circumferentially on the probe shield 230. This arrangement improves the uniformity of the liquid entering the probe shield 230 and ensures that the probe circuit board 300 is in full contact with the liquid.

[0062] It should be noted that the micro-water monitoring sensor provided in this embodiment will be calibrated using dedicated calibration equipment and a configured calibration solution after leaving the factory to ensure product consistency.

[0063] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A micro-water monitoring sensor, characterized by, The utility model relates to a micro water monitoring sensor, comprising: a shell structure, including a sealed shell (100) and a probe protective shell (200) connected with each other, the probe protective shell (200) is provided with a through port (210); a probe circuit board (300) and a core circuit board (400) connected with each other, the core circuit board (400) is arranged in the sealed shell (100), and the sealed shell (100) forms a sealed cavity on the side of the core circuit board (400) away from the probe circuit board (300);The probe circuit board (300) is electrically connected to the core circuit board (400) and extends into the probe protective shell (200), and the probe circuit board (300) is provided with a plurality of independent detection chips (310), and a plurality of detection chips (310) can monitor the micro water content of the liquid to be measured through the through port (210) respectively.

2. The micro-water monitoring sensor of claim 1, wherein, The micro water monitoring sensor further comprises a power supply circuit board (500), which is arranged in the sealed shell (100) and located in the sealed cavity, and can be electrically connected to the core circuit board (400).

3. The micro-water monitoring sensor of claim 2, wherein, The micro water monitoring sensor further comprises a buffer structure (600), which is arranged on the side of the core circuit board (400) facing the power supply circuit board (500), and when the power supply circuit board (500) is pressed and electrically connected to the core circuit board (400), the buffer structure (600) can be clamped between the core circuit board (400) and the power supply circuit board (500).

4. The micro-water monitoring sensor of claim 2, wherein, The core circuit board (400) is provided with a first connecting hole (410), the power supply circuit board (500) is provided with a second connecting hole (510), and the sealed shell (100) is provided with a preset connecting hole (110), the first connecting hole (410), the second connecting hole (510) and the preset connecting hole (110) correspond to each other and are configured to be used for inserting a connecting member.

5. The micro-water monitoring sensor of claim 2, wherein, The power supply circuit board (500) is provided with a positioning hole, and the sealed shell (100) is provided with a preset positioning hole (120), the positioning hole corresponds to the preset positioning hole (120) and is configured to be used for inserting a positioning member.

6. The micro-water monitoring sensor of claim 2, wherein, The micro water monitoring sensor further comprises a connector (700), which comprises a connector shell (710) and a connector inner pin (720), the connector shell (710) is arranged at one end of the sealed shell (100) away from the probe protective shell (200), the connector inner pin (720) can move in the connector shell (710) and is electrically connected to the power supply circuit board (500), and the connector (700) is configured to be used for connecting a signal receiving device of a micro water monitor.

7. The micro-water monitoring sensor of claim 1, wherein, The probe protection shell (200) is partially inserted into one end of the sealing shell (100); the micro-water monitoring sensor further comprises a sealing structure (800) arranged in the sealing shell (100), clamped between the core circuit board (400) and the probe protection shell (200), and abuts against the inner wall of the sealing shell (100).

8. The micro-water monitoring sensor according to any one of claims 1-7, wherein, The probe protection shell (200) comprises a connecting base (220) connected to the sealing shell (100) and a probe protection cover (230) connected to one end of the connecting base (220) away from the sealing shell (100), and the through hole (210) is arranged on the probe protection cover (230).

9. The micro-water monitoring sensor of claim 8, wherein, The through hole (210) is a plurality of through holes (210) arranged uniformly in the circumferential direction on the probe protection cover (230).

10. A micro-water monitor characterized by, The micro-water monitoring sensor comprises a signal receiving device and the micro-water monitoring sensor according to any one of claims 1-9, and the micro-water monitoring sensor is electrically connected to the signal receiving device and can monitor the micro-water content of the liquid to be measured.

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