Dual-core sensor and dual-core communication structure

Abstract

The utility model relates to the technical field of sensors and communication cables, in particular to a dual-core sensor and a dual-core communication structure. The dual-core communication structure comprises a dual-core sensor and a dual-core communication cable, the dual-core sensor comprises a sensor main body, the sensor main body comprises a main body shell, a circuit board and a pressure probe, and the circuit board is provided with a temperature sensing core and a micro-control unit; the electric sealing structure is connected with the sensor main body, the electric sealing structure comprises an electric sealing shell, two rubber sleeves are arranged in the electric sealing shell in parallel, jacks are formed in the rubber sleeves, and a double-groove sealing plug is arranged at one end of each rubber sleeve; the pipe sealing structure is connected with the electric sealing structure, the pipe sealing structure comprises a sealing pipe, and a capillary stainless steel pipe is installed in the sealing pipe; the double-core communication cable comprises two conductors and five sealing layers wrapping the conductors. According to the utility model, the technical problem that the complexity and the installation difficulty of a sensing system are increased due to excessive installation quantity of independent sensors in the device in the prior art is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors and communication cables, in particular to a dual-core sensor and a dual-core communication structure. Background Art

[0002] A sensor is a detection device that can sense the information being measured and convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control. It is widely used in industrial manufacturing, environmental protection, aerospace and other fields.

[0003] For example, a patent document with authorization announcement number CN218332805U discloses a fire safety hazard warning device for an offshore oil extraction platform. The control mainboard of the device is electrically connected to a data acquisition module, a screen wireless communication module and a speaker through wires. A temperature sensor, a smoke sensor, an oil and gas concentration sensor, a pressure sensor, a thermal imaging sensor and a flow sensor are electrically connected to the bottom of the data acquisition module through wires, and the speaker is electrically connected to an alarm light through wires. When in use, various data of the oil extraction platform are monitored through the temperature sensor, smoke sensor, oil and gas concentration sensor, pressure sensor, thermal imaging sensor and flow sensor to promptly detect abnormal data and issue a well warning in time to improve the early warning effect.

[0004] It can be seen that when the above device is in use, multiple individual sensors are required to work together, and each sensor needs to be connected to the data acquisition module through a wire. However, installing multiple individual sensors in the device not only increases the complexity and installation difficulty of the sensor system, but also causes inaccurate measurement results due to mutual interference between sensors, affecting the warning effect. Utility Model Content

[0005] The utility model provides a dual-core sensor to solve the technical problem in the prior art that too many single sensors are installed in a device, resulting in increased complexity of the sensor system and increased installation difficulty.

[0006] In order to solve the above problems, the dual-core sensor provided by the utility model adopts the following technical solutions:

[0007] A dual-core sensor, comprising:

[0008] The sensor body comprises a main body shell, a circuit board and a pressure probe connected to the circuit board are arranged in the main body shell, and a temperature sensing core and a micro control unit are arranged on the circuit board;

[0009] An electric sealing structure connected to the end of the sensor body away from the pressure probe, the electric sealing structure comprising an electric sealing shell, two rubber sleeves are arranged in parallel in the electric sealing shell, the rubber sleeves are provided with jacks, and a double-groove sealing plug is arranged at one end of the rubber sleeves facing the main body shell;

[0010] The tube sealing structure is connected to the end of the electrical sealing structure away from the sensor body. The tube sealing structure comprises a sealing tube in which a capillary stainless steel tube is installed.

[0011] The beneficial effects of the dual-core sensor provided by the utility model are: 1) by setting a dual-core sensor including a pressure probe and a temperature sensor core, the pressure probe and the temperature sensor core are integrated in a common housing. When in use, only one dual-core sensor is set to measure the pressure signal and the temperature signal, and the number of sensors required to be installed is small, which reduces the complexity and installation difficulty of the sensor system; 2) The temperature sensor core and the pressure probe are integrated in a common housing, so that the two can sense the same environmental conditions, which helps to eliminate measurement errors caused by different positions or different environments, and improves the accuracy and consistency of the measurement. Through the above-mentioned settings, the utility model effectively solves the technical problem in the prior art that the number of separate sensors installed in the device is too large, resulting in increased complexity and installation difficulty of the sensor system.

[0012] Furthermore, the sealing tube is provided with front ferrules and rear ferrules which are evenly spaced apart to fix the capillary stainless steel tube to prevent it from shifting during use.

[0013] Furthermore, a probe bracket matching the pressure probe is also arranged in the main shell to provide support for the pressure probe.

[0014] Furthermore, the tube sealing structure and the electrical sealing structure are plug-in connected, and a sealing ring is provided at the plug-in position to seal the plug-in position.

[0015] Furthermore, the sensor body and the electrical sealing structure are plug-connected, and a sealing ring is provided at the plug-in portion to seal the plug-in portion.

[0016] Furthermore, a sensor connector is installed at one end of the main housing away from the circuit board.

[0017] Furthermore, a sealing cap is provided at one end of the sealing tube away from the electrical sealing structure.

[0018] Furthermore, screw holes are provided at both ends of the circuit board, and the circuit board is connected to the main housing via screws that penetrate the screw holes and extend to the main housing.

[0019] In order to solve the above problems, the dual-core communication structure provided by the present invention adopts the following technical solutions:

[0020] A dual-core communication structure, comprising:

[0021] A dual-core sensor and a dual-core communication cable connected to the dual-core sensor;

[0022] The dual-core sensor comprises:

[0023] The sensor body comprises a main body shell, a circuit board and a pressure probe connected to the circuit board are arranged in the main body shell, and a temperature sensing core and a micro control unit are arranged on the circuit board;

[0024] An electric sealing structure connected to the end of the sensor body away from the pressure probe, the electric sealing structure comprising an electric sealing shell, two rubber sleeves are arranged in parallel in the electric sealing shell, the rubber sleeves are provided with jacks, and a double-groove sealing plug is arranged at one end of the rubber sleeves facing the main body shell;

[0025] a tube sealing structure connected to an end of the electrical sealing structure away from the sensor body, the tube sealing structure comprising a sealing tube in which a capillary stainless steel tube is installed;

[0026] The dual-core communication cable comprises a conductor and a sealing layer wrapped outside the conductor;

[0027] Conductors, two in number, for connecting the temperature sensing core and the pressure probe respectively;

[0028] There are five sealing layers, which are, from the inside out, a fluoroplastic insulated twisted pair layer, a stainless steel sealing sleeve, a polypropylene inner sheath, a single-layer steel wire armor layer and a polypropylene outer sheath, and the conductor is wrapped in the fluoroplastic insulated twisted pair layer.

[0029] The beneficial effects of the dual-core communication structure provided by the utility model are as follows: 1) by setting a dual-core sensor including a pressure probe and a temperature sensing core, the pressure probe and the temperature sensor core are integrated in a common housing. When in use, only one dual-core sensor is set to measure the pressure signal and the temperature signal, and the number of sensors required to be installed is small, which reduces the complexity and installation difficulty of the sensing system; 2) the temperature sensing core and the pressure probe are integrated in a common housing, so that the two can sense the same environmental conditions, which helps to eliminate the measurement errors caused by different positions or different environments, and improves the accuracy and consistency of the measurement; 3) the two conductors are respectively connected to the temperature sensing core and the pressure probe, and can transmit the temperature signal and the pressure signal respectively, and will not interfere with each other; 4) five sealing layers are set outside the conductor, which can effectively suppress the interference of external electromagnetic to the temperature signal and the pressure signal, ensure the purity of the temperature signal and the pressure signal, and thus ensure the stability and reliability of the temperature signal and the pressure signal. Through the above-mentioned settings, the utility model effectively solves the technical problem that the number of separate sensors installed in the device in the prior art is too large, which leads to the complexity of the sensing system and the increase of the installation difficulty.

[0030] Furthermore, the sealing tube is provided with front ferrules and rear ferrules which are evenly spaced apart to fix the capillary stainless steel tube to prevent it from shifting during use.

[0031] Furthermore, a probe bracket matching the pressure probe is also arranged in the main shell to provide support for the pressure probe.

[0032] Furthermore, the tube sealing structure and the electrical sealing structure are plug-in connected, and a sealing ring is provided at the plug-in position to seal the plug-in position.

[0033] Furthermore, the sensor body and the electrical sealing structure are plug-connected, and a sealing ring is provided at the plug-in portion to seal the plug-in portion.

[0034] Furthermore, a sensor connector is installed at one end of the main housing away from the circuit board.

[0035] Furthermore, a sealing cap is provided at one end of the sealing tube away from the electrical sealing structure.

[0036] Furthermore, screw holes are provided at both ends of the circuit board, and the circuit board is connected to the main housing via screws that penetrate the screw holes and extend to the main housing.

[0037] Furthermore, the conductor passes through the sealing cap, the capillary stainless steel tube, the rubber sleeve and the plug hole in sequence, and is inserted into the double-groove sealing plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0039] Figure 1 A schematic diagram of the structure of the dual-core sensor provided by the utility model;

[0040] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0041] Figure 3 for Figure 1 A partial enlarged schematic diagram of point B in the middle;

[0042] Figure 4 The utility model is a schematic diagram of the structure of the double-core communication cable.

[0043] Description of reference numerals:

[0044] 1. Main body shell; 2. Circuit board; 3. Pressure probe; 4. Electrical sealing shell; 5. Rubber sleeve; 6. Jack; 7. Double-groove sealing plug; 8. Sealing tube; 9. Capillary stainless steel tube; 10. Front ferrule; 11. Rear ferrule; 12. Probe bracket; 13. O-ring; 14. Sensor connector; 15. Sealing cap; 16. Screw; 17. Conductor; 18. Fluoroplastic insulated twisted pair layer; 19. Stainless steel sealing sleeve; 20. Polypropylene inner sheath; 21. Single-layer steel wire armor layer; 22. Polypropylene outer sheath. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0046] It should be noted that the main idea of ​​the utility model is: by integrating the temperature sensing core and the pressure probe in a common housing to form a dual-core sensor, the dual-core sensor can accurately measure the temperature signal and the pressure signal at the same time, while ensuring the measurement requirements, reducing the number of sensors required to be installed, reducing the complexity of the sensing system and the difficulty of installation; by setting a dual-core communication cable including two conductors and five sealing layers, the two conductors are respectively connected to the temperature sensing core and the pressure probe, so that the temperature signal and the pressure signal can be transmitted respectively, and there will be no interference between the signals. The sealing layer can effectively suppress the interference of external electromagnetic signals on the temperature signal and the pressure signal, thereby ensuring the stability and reliability of the temperature signal and the pressure signal.

[0047] After introducing the basic principle of the utility model, various non-limiting embodiments of the utility model are specifically introduced below. Any number of elements in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0048] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0049] Embodiment 1 of the dual-core sensor provided by the utility model:

[0050] like Figures 1 to 3 As shown, the dual-core sensor includes a sensor body, an electrical sealing structure and a tube sealing structure.

[0051] About the sensor body. The sensor body includes a main body shell 1, in which a circuit board 2 and a pressure probe 3 connected to the circuit board 2 and located at the right end of the circuit board 2 are arranged, the circuit board 2 is provided with a temperature sensing core and a micro control unit, the right end of the pressure probe 3 is plugged with a sensor connector 14, and a sealing ring is provided at the plug-in position, in addition, a probe bracket 12 matching the pressure probe 3 is also provided in the main body shell 1 to provide support for the pressure probe 3.

[0052] Specifically, screw holes are formed at both ends of the circuit board 2 , and the circuit board 2 is connected to the main housing 1 via screws 16 that penetrate through the screw holes and extend to the main housing 1 .

[0053] Regarding the electrical sealing structure. The right end of the electrical sealing structure is plug-connected with the left end of the sensor body, and a sealing ring is provided at the plug-in portion to seal the plug-in portion. The electrical sealing structure includes an electrical sealing housing 4, in which two rubber sleeves 5 are arranged in parallel, and a plug hole 6 is opened on the rubber sleeve 5. A double-groove sealing plug 7 is provided at the right end of the rubber sleeve 5.

[0054] Regarding the tube sealing structure. The right end of the tube sealing structure is plug-connected with the left end of the electric sealing structure, and a sealing ring is provided at the plug-in position to seal the plug-in position. The tube sealing structure includes a sealing tube 8, a capillary stainless steel tube 9 is installed in the sealing tube 8, and a front ferrule 10 and a rear ferrule 11 arranged at intervals for fixing the capillary stainless steel tube 9, and a sealing cap 15 is also provided at the left end of the sealing tube 8.

[0055] Specifically, the sealing rings used in the plug-in parts are all O-rings 13 .

[0056] The working principle of the dual-core sensor provided by the utility model is: the pressure probe 3 collects pressure signals and transmits the collected data to the microcontroller unit, the microcontroller unit combines the temperature sensing core arranged inside it to perform signal algorithm processing, and compares and calibrates the measured temperature signal with the data stored inside the microcontroller unit, and the rubber sleeve 5 and the jack 6 and the cable connected to the dual-core sensor are connected to form a loop, so that the transmission of temperature signals and pressure signals can be realized; during the measurement process, the electrical sealing structure transmits the measured data through the cable connected to the electrical sealing structure, and the electrical sealing structure can isolate the external high-pressure liquid to prevent the liquid from entering the sensor and causing the sensor to fail, and the capillary stainless steel tube 9 can be used for the conductor of the cable to pass through.

[0057] Embodiment 2 of the dual-core sensor provided by the present utility model:

[0058] The main difference between it and Example 1 is:

[0059] In Example 1, the number of ferrules in the sealing tube is two.

[0060] In this embodiment, the number of the ferrules in the sealing tube is three or more.

[0061] The embodiment of the dual-core communication structure provided by the utility model:

[0062] The dual-core communication structure includes a dual-core sensor and a dual-core communication cable connected to the dual-core sensor, wherein the structure of the dual-core sensor is completely the same as the structure of the above-mentioned dual-core sensor, and will not be repeated here.

[0063] like Figure 4 As shown, the two-core communication cable includes a conductor 17 and a sealing layer wrapped around the conductor.

[0064] Specifically, the number of the conductors 17 is two, and the two conductors 17 are used to connect to the temperature sensing core and the pressure probe 3 respectively.

[0065] Specifically, there are five sealing layers, which are, from the inside to the outside, a fluoroplastic insulated twisted pair layer 18 , a stainless steel sealing sleeve 19 , a polypropylene inner sheath 20 , a single-layer steel wire armor layer 21 , and a polypropylene outer sheath 22 , wherein the conductor 17 is wrapped in the fluoroplastic insulated twisted pair layer 18 .

[0066] Specifically, the conductor 17 passes through the sealing cap 15 , the capillary stainless steel tube 9 , the rubber sleeve 5 and the insertion hole 6 in sequence, and is inserted into the double-groove sealing plug 7 .

[0067] The working principle of the dual-core communication structure provided by the utility model is: the dual-core sensor measures the pressure signal and temperature signal in the environment, the rubber sleeve 5, the jack 6 and the dual-core communication cable are connected to form a loop, so that the measured data can be transmitted, the two conductors 17 in the dual-core communication cable transmit the temperature signal and the pressure signal respectively, the sealing layer isolates the external electromagnetic interference, and ensures the purity of the temperature signal and the pressure signal.

[0068] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "front", "rear", "left", "right", "inside", "outside" and other terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings of this specification, which are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0069] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A dual-core sensor, characterized in that: include: The sensor body comprises a main body shell, a circuit board and a pressure probe connected to the circuit board are arranged in the main body shell, and a temperature sensing core and a micro control unit are arranged on the circuit board; An electric sealing structure connected to the end of the sensor body away from the pressure probe, the electric sealing structure comprising an electric sealing shell, two rubber sleeves are arranged in parallel in the electric sealing shell, the rubber sleeves are provided with jacks, and a double-groove sealing plug is arranged at one end of the rubber sleeves facing the main body shell; The tube sealing structure is connected to the end of the electrical sealing structure away from the sensor body. The tube sealing structure comprises a sealing tube in which a capillary stainless steel tube is installed.

2. The dual-core sensor according to claim 1, characterized in that: The sealing tube is provided with a front ferrule and a rear ferrule which are evenly spaced to fix the capillary stainless steel tube to prevent it from shifting during use.

3. The dual-core sensor according to claim 1 or 2, characterized in that: A probe bracket matching the pressure probe is also arranged in the main shell to provide support for the pressure probe.

4. The dual-core sensor according to claim 1 or 2, characterized in that: The tube sealing structure is plug-connected with the electrical sealing structure, and a sealing ring is provided at the plug-in position to seal the plug-in position.

5. The dual-core sensor according to claim 1 or 2, characterized in that: The sensor body is plug-connected to the electrical sealing structure, and a sealing ring is provided at the plug-in position to seal the plug-in position.

6. The dual-core sensor according to claim 1 or 2, characterized in that: A sensor connector is installed at one end of the main housing away from the circuit board.

7. The dual-core sensor according to claim 1 or 2, characterized in that: A sealing cap is provided at one end of the sealing tube away from the electrical sealing structure.

8. The dual-core sensor according to claim 1 or 2, characterized in that: Screw holes are provided at both ends of the circuit board, and the circuit board is connected to the main shell through screws that penetrate the screw holes and extend to the main shell.

9. A dual-core communication structure, characterized in that: include: The dual-core sensor according to any one of claims 1 to 8, and a dual-core communication cable connected to the dual-core sensor; The dual-core communication cable comprises a conductor and a sealing layer wrapped outside the conductor; There are two conductors for connecting the temperature sensing core and the pressure probe respectively; there are five sealing layers, which are, from the inside to the outside, a fluoroplastic insulated twisted pair layer, a stainless steel sealing sleeve, a polypropylene inner sheath, a single-layer steel wire armor layer and a polypropylene outer sheath, and the conductor is wrapped in the fluoroplastic insulated twisted pair layer.

10. The dual-core communication structure according to claim 9, characterized in that: The conductor passes through the sealing cap, the capillary stainless steel tube, the rubber sleeve and the plug hole in sequence, and is inserted into the double-groove sealing plug.

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