CN112510782A - Separated type explosion-proof and intrinsic safety sensor - Google Patents

Separated type explosion-proof and intrinsic safety sensor Download PDF

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Publication number
CN112510782A
CN112510782A CN202011398570.2A CN202011398570A CN112510782A CN 112510782 A CN112510782 A CN 112510782A CN 202011398570 A CN202011398570 A CN 202011398570A CN 112510782 A CN112510782 A CN 112510782A
Authority
CN
China
Prior art keywords
module
flameproof
direct current
proof
explosion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011398570.2A
Other languages
Chinese (zh)
Inventor
陆东兵
赵要强
郑周俊
谭威
张波
施逸彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai SK Petroleum Chemical Equipment Corp Ltd
Shanghai SK Petroleum Technology Co Ltd
Original Assignee
Shanghai SK Petroleum Chemical Equipment Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai SK Petroleum Chemical Equipment Corp Ltd filed Critical Shanghai SK Petroleum Chemical Equipment Corp Ltd
Priority to CN202011398570.2A priority Critical patent/CN112510782A/en
Publication of CN112510782A publication Critical patent/CN112510782A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068Battery or charger load switching, e.g. concurrent charging and load supply

Abstract

The invention discloses a separated explosion-proof and intrinsic safety sensor which comprises a battery module and a working module and is characterized in that the battery module and the working module are respectively subjected to explosion-proof treatment by adopting an explosion-proof shell, the battery module is not directly electrically connected with the working module, and energy is conducted by adopting an alternating magnetic field. The separated explosion-proof and intrinsic safety sensor has no external connecting wire, has the advantages of quick layout, convenient maintenance, low system power consumption and long standby time, meets the requirements of explosion prevention and intrinsic safety, and can be used in places with special dangerous working environments.

Description

Separated type explosion-proof and intrinsic safety sensor
Technical Field
The invention relates to the technical field of explosion-proof instruments and meters, in particular to a separated type explosion-proof and intrinsic safety sensor.
Background
Many explosion-proof instruments and meters adopt whole pouring seal mode to reach explosion-proof effect, just need whole dismantlement when maintaining like this, and is not very convenient during the use. If the mode of explosion-proof equipment combination is adopted, then a connector is needed, the common connector is not satisfactory, and the explosion-proof connector is expensive. And the wired sensors are difficult to arrange on a special field, and the networking is inconvenient.
Disclosure of Invention
The invention aims to solve the technical problem of providing a separated explosion-proof and intrinsic safety sensor aiming at the defects of a plurality of explosion-proof instruments and meters in an integral encapsulation mode and an explosion-proof equipment combination mode.
The technical problem to be solved by the invention can be realized by the following technical scheme:
the separated type explosion-proof and intrinsic safety sensor comprises a battery module and a working module, wherein the battery module and the working module are subjected to explosion-proof treatment by adopting an explosion-proof shell respectively, the battery module is not directly electrically connected with the working module, and energy is conducted by adopting an alternating magnetic field.
In a preferred embodiment of the invention, the explosion-proof shell on the battery module is connected with the explosion-proof shell on the working module in a threaded manner.
In a preferred embodiment of the invention, the flameproof housing on the battery module is in threaded connection with the flameproof housing on the working module by adopting internal threads and external threads, wherein the internal threads are arranged on the flameproof housing on the battery module, and the external threads are arranged on the flameproof housing on the working module.
In a preferred embodiment of the invention, a sealing rubber strip is arranged between the explosion-proof shell on the battery module and the explosion-proof shell on the working module for sealing.
In a preferred embodiment of the present invention, the battery module is formed by combining a charging and discharging module, a battery, an energy conversion unit for converting direct current into alternating current, and a transmitting coil, and integrally casting and sealing the combination into a whole, wherein the charging and discharging module is provided with a charging terminal, and the charging terminal extends out of the integrally casting and sealing the combination and unidirectionally receives energy input; the charging terminal is led out of the explosion-proof shell on the battery module through an outgoing line; the charging and electricity-proof module manages the charging and discharging of the battery and supplies power to the energy conversion unit which converts the direct current into the alternating current, the energy conversion unit which converts the direct current into the alternating current is connected with the transmitting coil, and an alternating magnetic field is emitted through the transmitting coil.
In a preferred embodiment of the invention, the working module consists of a receiving module, a sensor probe, an MCU control unit and a wireless transmitting unit, wherein the receiving module comprises a receiving coil, an energy conversion unit for converting alternating current into direct current and an energy limiting unit; the receiving coil, the energy conversion unit for converting alternating current into direct current and the energy limiting unit are integrally cast and sealed into a whole to form the receiving module; the receiving coil receives the alternating magnetic field emitted by the transmitting coil, inputs the alternating magnetic field into the energy conversion unit which converts alternating current into direct current, converts the alternating current into the direct current through the energy conversion unit which converts the direct current into direct current and inputs the direct current into the energy limiting unit; the energy limiting unit provides a direct current power supply for the sensor probe, the MCU control module and the wireless transmitting unit; the sensor probe finishes the acquisition of environmental parameters, transmits the environmental parameters to the MCU control unit for acquisition and operation, and transmits the acquired data to the host through the wireless transmitting unit.
In a preferred embodiment of the present invention, the receiving module outputs an intrinsically safe power supply.
In a preferred embodiment of the invention, the transmitter coil and the receiver coil are adjacent to each other.
Due to the adoption of the technical scheme, the battery module and the working module are respectively subjected to explosion-proof treatment by adopting the explosion-proof shell, direct electrical connection is avoided between the battery module and the working module, and the alternating magnetic field is adopted for conducting energy, so that electric sparks possibly generated when a connector is used are avoided, and meanwhile, the battery module is convenient to replace and maintain.
The battery module and the working module are respectively integrally cast and sealed into a whole, so that sparks can be prevented from being generated between the battery module and the working module or peripheral equipment.
The separated explosion-proof and intrinsic safety sensor has no external connecting wire, is convenient to move, low in system power consumption and long in standby time, meets the requirements of explosion prevention and intrinsic safety, and can be used in places with special dangerous working environments.
The invention adopts the separated design of the battery module and the working module (including the receiving module), the battery module and the receiving module are separately cast, the energy is transmitted between the battery module and the working module through an alternating electromagnetic field, no connecting piece is provided, and the maintainability of the battery module is greatly improved.
Under the working state, the invention can collect and transmit the field parameters to the host without any external connecting line, thereby facilitating the rapid field layout. The battery module and the working module are designed separately, so that the rapid replacement and maintenance on site are facilitated. The integral design meets the requirements of explosion prevention and intrinsic safety, and the use under special field environment is met.
Drawings
FIG. 1 is a schematic structural diagram of a separated type flameproof and intrinsically safe sensor provided by the invention.
Detailed Description
The preferred embodiment of the present invention is described in detail below with reference to fig. 1.
Referring to fig. 1, the separated type flameproof and intrinsically safe sensor shown in the figure comprises a battery module 222 and a working module 333, wherein the battery module 222 and the working module 333 are respectively flameproof-treated by flameproof shells 1 and 2, the battery module 222 is not directly electrically connected with the working module 333, and energy is conducted by an alternating magnetic field.
The flameproof housing 1 on the battery module 222 is connected with the flameproof housing 2 on the working module 333 in a threaded manner. In particular, an internal thread 1a and an external thread 2a are used for the threaded connection. The internal thread 1a is arranged on the flameproof housing 2 on the battery module 222, and the external thread 2a is arranged on the flameproof housing 2 on the working module 333.
In order to prevent water from penetrating between the internal thread 1a and the external thread 2a, a sealing rubber strip 3 is arranged between the flameproof housing 1 on the battery module 222 and the flameproof housing 2 on the working module 333 for sealing.
The battery module 222 is formed by integrally molding and sealing 222a by combining the charge/discharge module 11, the battery 22, the energy conversion unit 33 for converting direct current into alternating current, and the transmission coil 44 to form a battery module 222. The potting seal is one form of explosion protection that prevents sparking of the battery module 222 itself or with peripheral devices.
A charging terminal 11a is arranged on the charging and discharging module 11, the charging terminal 11a extends out of the integral casting seal to receive energy input in a single direction, and the charging terminal 11a is led out of the explosion-proof shell 1 on the battery module 222 through an outgoing line; thus, the battery module 222 only retains the external charging terminal 11a, has unidirectional energy transmission, only receives energy input, and does not provide energy to the outside.
The charging and preventing module 11 manages the charging and discharging of the battery 22 and supplies power to the energy conversion unit 33 which changes the direct current into the alternating current, and when the voltage of the battery 22 rises to 4.2V, the charging and discharging module 11 stops charging the battery 22; when the voltage of the battery 22 drops to 3.7V, the charging and discharging module 11 stops the power supply to the energy conversion unit 33 for converting the direct current into the alternating current. The voltage of the battery 22 is between 3.7V and 4.2V, one of charging and discharging is selected by the charging and discharging module 11, and the discharging state has high priority.
The energy conversion unit 33 for converting the direct current into the alternating current receives the direct current power supplied from the battery 22 through the charge/discharge module 11, and converts the direct current power into the alternating current power having a predetermined frequency, thereby driving the transmission coil 44, and forming an alternating magnetic field in a space by the transmission coil 44.
When the battery module 222 supplies power to the operating module 333, the battery module 222 is not allowed to be charged, and the battery module 222 can only be removed from the operating module 333 for charging. When the battery module 222 is detached from the operation module 333 and charged, the energy conversion unit 33 that converts direct current into alternating current is not activated.
The working module 333 is composed of a receiving module bb, a sensor probe 88, an MCU control unit 99 and a wireless transmitting unit aa. The receiving module bb includes a receiving coil 55, an energy conversion unit 66 for converting alternating current into direct current, and an energy limiting unit 77. The receiving coil 55, the energy conversion unit 66 for converting alternating current into direct current, and the energy limiting unit 77 are integrally cast and sealed bba to form a receiving module bb, which is provided for the sensor probe 88, the MCU control 99 and the wireless transmission aa. The potting seal may prevent the receiving module bb from sparking on its own or with peripheral equipment.
The receiving coil 55 receives the alternating magnetic field emitted from the transmitting coil 44, and inputs the alternating magnetic field into the energy conversion unit 66 for converting alternating current into direct current, and the alternating magnetic field is converted into direct current by the energy conversion unit 66 for converting alternating current into direct current and input into the energy limiting unit 77; the intrinsically safe power supply provided by the energy limiting unit 77 is provided for use by the sensor probe 88, the MCU control 99, and the wireless transmission aa, respectively.
After the sensor probe 88 converts the environmental parameters into electrical signals, the MCU control unit 99 collects and calculates the environmental parameters, and transmits the collected data to the host computer through the wireless transmitting unit aa.
And installing the receiving module bb, the wireless transmission aa, the MCU control 99 and the sensor probe 99 in the flameproof shell 2. The battery module 222 is installed in the flameproof housing 1. The explosion-proof shell 1 and the explosion-proof shell 2 are sealed through the threaded connection and the adhesive tape, and the explosion-proof effect is achieved.
When the battery module 222 and the operation module 333 are assembled together, the transmitting coil 44 and the receiving coil 55 are adjacent to each other to improve energy receiving efficiency.
The invention utilizes a module separation design method and adopts an alternating magnetic field to transfer energy, thereby avoiding the use of a connector and facilitating the rapid maintenance of the battery module. And an intrinsically safe power supply is used, so that the maintenance of the sensor probe, the MCU and the transmitting module is facilitated. The use of module encapsulation and explosion-proof shell has reached explosion-proof effect. The separated flame-proof and intrinsic safety sensor has no external connecting wire, is quick in layout, quick in networking, convenient to maintain, low in system power consumption, long in standby time, meets the requirements of explosion prevention and intrinsic safety, and has high practical value. The invention has the following advantages:
1. and the battery module and the working module are separately designed, so that the battery module is convenient to maintain quickly.
2. The method of using alternating magnetic field to transfer energy solves the problems of spark generation by using common connector and high price of explosion-proof connector.
3. The battery module and the receiving module are respectively sealed by integral encapsulation, so that the module or other equipment is prevented from generating sparks, and an explosion-proof effect is achieved.
4. The explosion-proof shell adopts threaded connection and adhesive tape sealing, and an explosion-proof effect is achieved.
5. The intrinsically safe power supply is used, the rear-stage circuit is not required to be sealed, and the sensor probe, the MCU and the transmitting module are convenient to maintain.
6. When in use, the device can be put into use without any connecting wire, thereby facilitating the rapid layout on site and the rapid networking.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.

Claims (8)

1. The separated type explosion-proof and intrinsic safety sensor comprises a battery module and a working module, and is characterized in that the battery module and the working module are respectively subjected to explosion-proof treatment by adopting an explosion-proof shell, the battery module is not directly electrically connected with the working module, and energy is conducted by adopting an alternating magnetic field.
2. The separated type flameproof and intrinsically safe sensor of claim 1, wherein the flameproof shell on the battery module is connected with the flameproof shell on the working module in a threaded manner.
3. The separated type flameproof and intrinsically safe sensor of claim 2, wherein the flameproof shell on the battery module is in threaded connection with the flameproof shell on the working module by adopting internal threads and external threads, wherein the internal threads are arranged on the flameproof shell on the battery module, and the external threads are arranged on the flameproof shell on the working module.
4. The separated type flameproof and intrinsically safe sensor of claim 1, wherein a sealing rubber strip is arranged between the flameproof shell on the battery module and the flameproof shell on the working module for sealing.
5. A separated type flameproof and intrinsically safe sensor as claimed in any one of claims 1 to 4, wherein the battery module is formed by combining a charge-discharge module, a battery, an energy conversion unit for converting direct current into alternating current and a transmitting coil, and integrally casting and sealing the charge-discharge module and the battery into a whole, and a charging terminal is arranged on the charge-discharge module and extends out of the integrally cast and sealed structure to unidirectionally receive energy input; the charging terminal is led out of the explosion-proof shell on the battery module through an outgoing line; the charging and electricity-proof module manages the charging and discharging of the battery and supplies power to the energy conversion unit which converts the direct current into the alternating current, the energy conversion unit which converts the direct current into the alternating current is connected with the transmitting coil, and an alternating magnetic field is emitted through the transmitting coil.
6. The separated type flameproof and intrinsically safe sensor of claim 5, wherein the working module consists of a receiving module, a sensor probe, an MCU control unit and a wireless transmitting unit, the receiving module comprises a receiving coil, an energy conversion unit for converting alternating current into direct current and an energy limiting unit; the receiving coil, the energy conversion unit for converting alternating current into direct current and the energy limiting unit are integrally cast and sealed into a whole to form the receiving module; the receiving coil receives the alternating magnetic field emitted by the transmitting coil, inputs the alternating magnetic field into the energy conversion unit which converts alternating current into direct current, converts the alternating current into the direct current through the energy conversion unit which converts the direct current into direct current and inputs the direct current into the energy limiting unit; the energy limiting unit provides a direct current power supply for the sensor probe, the MCU control module and the wireless transmitting unit; the sensor probe finishes the acquisition of environmental parameters, transmits the environmental parameters to the MCU control unit for acquisition and operation, and transmits the acquired data to the host through the wireless transmitting unit.
7. The separated flameproof and intrinsically safe sensor of claim 6, wherein the receiving module outputs an intrinsically safe power supply.
8. The separated flameproof and intrinsically safe sensor of claim 7, wherein the transmitting coil and the receiving coil are adjacent to each other.
CN202011398570.2A 2020-12-03 2020-12-03 Separated type explosion-proof and intrinsic safety sensor Pending CN112510782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011398570.2A CN112510782A (en) 2020-12-03 2020-12-03 Separated type explosion-proof and intrinsic safety sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011398570.2A CN112510782A (en) 2020-12-03 2020-12-03 Separated type explosion-proof and intrinsic safety sensor

Publications (1)

Publication Number Publication Date
CN112510782A true CN112510782A (en) 2021-03-16

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ID=74968132

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011398570.2A Pending CN112510782A (en) 2020-12-03 2020-12-03 Separated type explosion-proof and intrinsic safety sensor

Country Status (1)

Country Link
CN (1) CN112510782A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113338912A (en) * 2021-06-01 2021-09-03 威利朗沃矿业设备(北京)有限公司 Cast type mining measurement while drilling device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113338912A (en) * 2021-06-01 2021-09-03 威利朗沃矿业设备(北京)有限公司 Cast type mining measurement while drilling device

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