CN205901258U - Logging instrument circuit protection device with alarming function - Google Patents
Logging instrument circuit protection device with alarming function Download PDFInfo
- Publication number
- CN205901258U CN205901258U CN201620786483.7U CN201620786483U CN205901258U CN 205901258 U CN205901258 U CN 205901258U CN 201620786483 U CN201620786483 U CN 201620786483U CN 205901258 U CN205901258 U CN 205901258U
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- joint
- current
- logger
- mos switch
- switch module
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Abstract
The utility model discloses a logging instrument circuit protection device with alarming function, including circuit board and alarm, be provided with current detection module, singlechip and MOS switch module on the circuit board, the singlechip is connected with alarm, current detection module and MOS switch module respectively. Through the utility model discloses an overcurrent protect device, oil logging instrument in drilling process in the pit, when system's operating current increases suddenly, timely open circuit, protection oil logging instrument, when current recovery just often, the singlechip will recover to switch on by automatic control relay, makes circuit the normal power supply, does not need artificially to change the fuse, when having saved the manpower and materials cost, has greatly improved oil well logging efficiency. Additionally, the utility model discloses when reaching the predetermined value, the number of times controls detecting to overflow MOS switch module keep cut -off, and to the alarm sends alarm signal, further improved circuit's security.
Description
Technical field
This utility model is related to petroleum exploration well logging field, more particularly, to has the logger circuit protection of warning function
Device.
Background technology
Petroleum industry well logging lwd (logging while drilling) generally refers to measurement during drilling well
Formation rock physical parameter, and with data telemetry system, measurement result is delivered in real time ground and processed.Due to current data
The restriction of transmission technology, substantial amounts of data storage, in the memorizer of downhole instrument, plays back after trip-out.Measurement while drilling mwd
(measurement while drilling) generally refers to drilling engineering parameter measurement, as hole deviation, orientation and tool-face etc.
Measurement.Sometimes, mwd refers to all of underground survey during drilling well.
Due to well logging obtain formation parameter be just to have bored the formation parameter opened, it closest to the initial condition on stratum,
For more favourable than general wireline logging to the oil-containing of bad ground, gas evaluation.Connector for logging while drilling is placed in drill collar, except measurement
Outside the conventional loggings such as resistivity, the velocity of sound, neutron porosity, density and some imaging loggings, also measurement the pressure of the drill, moment of torsion, rotating speed, ring
Pneumatics power, temperature, the drilling parameter such as chemical composition.Bad environments in drill bit drilling process, temperature is very high, and pressure greatly, vibrates
Strongly, downhole temperature often reaches more than 150 DEG C, and therefore, the requirement to the high temperature resistant property of downhole petroleum logger is higher.
Common downhole petroleum logger includes: magnetic compass list, multishot instrument, steering tool, no
Line directional tool, EMI, photograph list, multiple spot gyrolevel, electronic gyroscope inclinometer etc..
Oil well logging instrument is during downhole drill, if running into harder rock or the short-circuit feelings of circuit appearance
Condition, system operating current can increase suddenly, can burn out electronic circuit when serious, affects construction speed.At present conventional method be
System power supply end seals in an electric fuse, and if there is over-current phenomenon avoidance, electric fuse fuses automatically, protects electronic circuit.But this
Kind of electric fuse is only capable of protection once, has blown and has needed to change, and when changing electric fuse, needs to interrupt construction, and by whole string instrument from
Well head is brought up, and wastes time and energy.The operating temperature range of most of on the market resettable fuses is between -40 DEG C to 85 at present
DEG C, also cannot meet and be actually needed.
Utility model content
In order to solve above-mentioned technical problem, provide one kind can be more than or equal to 150 DEG C of work in high temperature environments, possess
Stream protection and the automatic device recovering, this utility model provides a kind of logger circuit protection dress with warning function
Put, including circuit board and alarm, described circuit board is provided with current detection module, single-chip microcomputer and mos switch module, described
Current detection module is connected with the power supply interface of downhole petroleum logger, and the power supply for measuring downhole petroleum logger connects
The output current of mouth；
Described mos switch module is connected in the power supply output circuit of downhole petroleum logger；
Described single-chip microcomputer is connected with described alarm, current detection module and mos switch module respectively, and described single-chip microcomputer is used
In the current information receiving current detection module measurement；
Described single-chip microcomputer controls described mos switch module cut-off when described electric current is more than default overloading threshold, and
Control described mos switch module conducting after the scheduled time, receive the current information of current detection module measurement again, and judge again
Whether the electric current of secondary reception is less than described overloading threshold, if so, then controls described mos switch module conducting, if it is not, then controlling institute
State the cut-off of mos switch module；Described single-chip microcomputer is further used for recording the number of times that described electric current is more than default overloading threshold, and
Control when described number of times reaches predetermined value described mos switch module to keep cut-off, and send alarm signal to described alarm.
Further, shell and cover plate are also included, described inside the shell offers the groove for accommodating described circuit board, institute
State circuit board to be arranged in described groove.
Further, the first joint and the second joint are also included, described first joint and the second joint are separately positioned on institute
State the two ends of shell, and described first joint and the second joint are all connected with described circuit board.
Further, also include collar, described collar is arranged on outside described second joint, described collar and described shell
It is flexibly connected.
Further, described current detection module includes the current detecting chip for detecting size of current.
Further, described current detection module also includes current amplifier, and described current amplifier is used for measurement well
The output current of the power supply interface of lower oil well logging instrument is amplified.
Further, described shell is cylinder.
Further, described first joint is three needle adapters, and described second joint is ten needle adapters, and described second joint
It is connected with described collar.
Further, when the operating current of described downhole petroleum logger is 1a-1.5a, described overloading threshold is 3a.
Further, when the operating current of described downhole petroleum logger is 200ma-1a, described overloading threshold is 2a.
Device of the present utility model is provided with alarm, current detection module, single-chip microcomputer and mos switch module, by electricity
Stream detection module measures the output current of the power supply interface of downhole petroleum logger, receives current detection module by single-chip microcomputer
The current information of measurement, and control described mos switch module cut-off when described electric current is more than default overloading threshold, and pre-
Control described mos switch module conducting after fixing time, receive the current information of current detection module measurement again, and judge again
Whether the electric current receiving is less than described overloading threshold, if so, then controls described mos switch module conducting, if it is not, then controlling described
Mos switch module ends.Foregoing circuit functional module can work (more than or equal to 150 DEG C) in high temperature environments and possess excessively stream
Protection and auto restore facility.In addition, described single-chip microcomputer is further used for recording described electric current more than default overloading threshold
Number of times, and control described mos switch module to keep cut-off when described number of times reaches predetermined value, and send report to described alarm
Alert signal.This utility model controls described mos switch module to keep cut-off detecting when excessively stream number of times reaches predetermined value, and to
Described alarm sends alarm signal, improves the safety of circuit further.
In addition, this utility model is also provided with shell and two interfaces, circuit board is arranged on inside the shell, makes the steady of device
Qualitative higher, versatility more preferably, is convenient for changing.
By overcurrent protective device of the present utility model, oil well logging instrument, during downhole drill, works in system
When electric current increases suddenly, can disconnecting circuit in time, protect oil well logging instrument, when electric current recovers normal, single-chip microcomputer meeting again
Automatically control mos switch module and recover conducting, make circuit normal power supply it is not necessary to artificially change electric fuse, save manpower thing
While power cost, drastically increase oil well logging efficiency.
Brief description
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art and advantage, below will be right
In embodiment or description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, below describe in attached
Figure is only some embodiments of the present utility model, for those of ordinary skill in the art, is not paying creative work
On the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the decomposing schematic representation of the logger circuit protection device with warning function that this utility model provides；
Fig. 2 is the structured flowchart of circuit board of the present utility model.
In figure: 1- shell, 2- first joint, 3- second joint, 4- circuit board, 41- current detection module, 42- single-chip microcomputer,
43-mos switch module, 44- current detecting chip, 45- current amplifier, 5- cover plate, 6- collar, 7- groove, 8- downhole petroleum
Logger, 81- power supply interface, 9- alarm.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not making the premise of creative work
Lower obtained every other embodiment, broadly falls into the scope of this utility model protection.
Embodiment one:
Refer to Fig. 1, Fig. 2, this utility model provides a kind of logger circuit protection device with warning function,
Including circuit board 4 and alarm 9, described circuit board is provided with current detection module 41, single-chip microcomputer 42 and mos switch module
43, described current detection module 41 is connected with the power supply interface 81 of downhole petroleum logger 8, for measuring downhole petroleum well logging
The output current of the power supply interface 81 of instrument 8；
Described mos switch module 43 is connected in the power supply output circuit of downhole petroleum logger 8；
Described single-chip microcomputer 42 is connected with described alarm 9, current detection module 41 and mos switch module 43 respectively, described
Single-chip microcomputer 42 is used for receiving the current information of current detection module 41 measurement；
Described single-chip microcomputer 42 controls described mos switch module 43 to end when described electric current is more than default overloading threshold,
And control described mos switch module 43 to turn on after the scheduled time, receive the current information of current detection module 41 measurement again,
And judge whether the electric current receiving again is less than described overloading threshold, if so, then control described mos switch module 43 to turn on, if
No, then control described mos switch module 43 to end；Described single-chip microcomputer 42 is further used for recording described electric current more than default mistake
Carry the number of times of threshold value, and control when described number of times reaches predetermined value described mos switch module 43 to keep cut-off, and to described report
Alert device 9 sends alarm signal.
Further, also include shell 1 and cover plate 5, offer for accommodating the recessed of described circuit board 4 in described shell 1
Groove 7, described circuit board 4 is arranged in described groove 7.
Further, the first joint 2 and the second joint 3 are also included, described first joint 2 and the second joint 3 are respectively provided with
At the two ends of described shell 1, and described first joint 2 and the second joint 3 are all connected with described circuit board 4.
Further, also include collar 6, described collar 6 is arranged on outside described second joint 3, described collar 6 with described
Shell 1 is flexibly connected.
Further, described current detection module 41 includes the current detecting chip 44 for detecting size of current.
Further, described current detection module 41 also includes current amplifier 45, and it is right that described current amplifier 45 is used for
The output current of the power supply interface 81 of measurement downhole petroleum logger 8 is amplified.
Further, described shell 1 is cylinder.
Further, described first joint 2 is three needle adapters, and described second joint 3 is ten needle adapters, and described second connects
3 are connected with described collar 6.Certainly, in specific application scenarios, can be according to the first different joint of physical circuit setting
Stitch number with the second joint.
Further, when the operating current of described downhole petroleum logger 8 is 1a-1.5a, described overloading threshold is 3a.
Device of the present utility model is provided with alarm, current detection module, single-chip microcomputer and mos switch module, by electricity
Stream detection module measures the output current of the power supply interface of downhole petroleum logger, receives current detection module by single-chip microcomputer
The current information of measurement, and control described mos switch module cut-off when described electric current is more than default overloading threshold, and pre-
Control described mos switch module conducting after fixing time, receive the current information of current detection module measurement again, and judge again
Whether the electric current receiving is less than described overloading threshold, if so, then controls described mos switch module conducting, if it is not, then controlling described
Mos switch module ends.Foregoing circuit functional module can work (more than or equal to 150 DEG C) in high temperature environments and possess excessively stream
Protection and auto restore facility.In addition, described single-chip microcomputer is further used for recording described electric current more than default overloading threshold
Number of times, and control described mos switch module to keep cut-off when described number of times reaches predetermined value, and send report to described alarm
Alert signal.This utility model controls described mos switch module to keep cut-off detecting when excessively stream number of times reaches predetermined value, and to
Described alarm sends alarm signal, improves the safety of circuit further.
In addition, this utility model is also provided with shell and two interfaces, circuit board is arranged on inside the shell, makes the steady of device
Qualitative higher, versatility more preferably, is convenient for changing.
By overcurrent protective device of the present utility model, oil well logging instrument, during downhole drill, works in system
When electric current increases suddenly, can disconnecting circuit in time, protect oil well logging instrument, when electric current recovers normal, single-chip microcomputer meeting again
Automatically control mos switch module and recover conducting, make circuit normal power supply it is not necessary to artificially change electric fuse, save manpower thing
While power cost, drastically increase oil well logging efficiency.
Embodiment two:
Refer to Fig. 1, Fig. 2, this utility model provides a kind of logger circuit protection device with warning function,
Including circuit board 4 and alarm 9, described circuit board is provided with current detection module 41, single-chip microcomputer 42 and mos switch module
43, described current detection module 41 is connected with the power supply interface 81 of downhole petroleum logger 8, for measuring downhole petroleum well logging
The output current of the power supply interface 81 of instrument 8；
Described mos switch module 43 is connected in the power supply output circuit of downhole petroleum logger 8；
Described single-chip microcomputer 42 is connected with described alarm 9, current detection module 41 and mos switch module 43 respectively, described
Single-chip microcomputer 42 is used for receiving the current information of current detection module 41 measurement；
Described single-chip microcomputer 42 controls described mos switch module 43 to end when described electric current is more than default overloading threshold,
And control described mos switch module 43 to turn on after the scheduled time, receive the current information of current detection module 41 measurement again,
And judge whether the electric current receiving again is less than described overloading threshold, if so, then control described mos switch module 43 to turn on, if
No, then control described mos switch module 43 to end；Described single-chip microcomputer 42 is further used for recording described electric current more than default mistake
Carry the number of times of threshold value, and control when described number of times reaches predetermined value described mos switch module 43 to keep cut-off, and to described report
Alert device 9 sends alarm signal.
It should be noted that in the specific application scenarios of this utility model, described single-chip microcomputer 42 is counted by enumerator
Calculate described electric current and be more than the number of times of default overloading threshold it is also possible to the referred to as frequency of failure.If be more than default in described electric current
When the number of times of overloading threshold is not up to predetermined value, when the electric current detecting is less than overloading threshold, then single-chip microcomputer 42 is controlling mos to open
When closing module 43 conducting, counter O reset, restarts when the upper electric current once receiving reaches described overloading threshold to count.
In specific application scenarios, alarm 9 can be voice guard, by sending audible alarm.
Further, also include shell 1 and cover plate 5, offer for accommodating the recessed of described circuit board 4 in described shell 1
Groove 7, described circuit board 4 is arranged in described groove 7.
Further, the first joint 2 and the second joint 3 are also included, described first joint 2 and the second joint 3 are respectively provided with
At the two ends of described shell 1, and described first joint 2 and the second joint 3 are all connected with described circuit board 4.
Further, also include collar 6, described collar 6 is arranged on outside described second joint 3, described collar 6 with described
Shell 1 is flexibly connected.
Further, described current detection module 41 includes the current detecting chip 44 for detecting size of current.
Further, described current detection module 41 also includes current amplifier 45, and it is right that described current amplifier 45 is used for
The output current of the power supply interface 81 of measurement downhole petroleum logger 8 is amplified.
Further, described shell 1 is cylinder.
Further, described first joint 2 is three needle adapters, and described second joint 3 is ten needle adapters, and described second connects
3 are connected with described collar 6.
Further, when the operating current of described downhole petroleum logger 8 is 200ma-1a, described overloading threshold is
2a.
Device of the present utility model is provided with alarm, current detection module, single-chip microcomputer and mos switch module, by electricity
Stream detection module measures the output current of the power supply interface of downhole petroleum logger, receives current detection module by single-chip microcomputer
The current information of measurement, and control described mos switch module cut-off when described electric current is more than default overloading threshold, and pre-
Control described mos switch module conducting after fixing time, receive the current information of current detection module measurement again, and judge again
Whether the electric current receiving is less than described overloading threshold, if so, then controls described mos switch module conducting, if it is not, then controlling described
Mos switch module ends.Foregoing circuit functional module can work (more than or equal to 150 DEG C) in high temperature environments and possess excessively stream
Protection and auto restore facility.In addition, described single-chip microcomputer is further used for recording described electric current more than default overloading threshold
Number of times, and control described mos switch module to keep cut-off when described number of times reaches predetermined value, and send report to described alarm
Alert signal.This utility model controls described mos switch module to keep cut-off detecting when excessively stream number of times reaches predetermined value, and to
Described alarm sends alarm signal, improves the safety of circuit further.
In addition, this utility model is also provided with shell and two interfaces, circuit board is arranged on inside the shell, makes the steady of device
Qualitative higher, versatility more preferably, is convenient for changing.
By overcurrent protective device of the present utility model, oil well logging instrument, during downhole drill, works in system
When electric current increases suddenly, can disconnecting circuit in time, protect oil well logging instrument, when electric current recovers normal, single-chip microcomputer meeting again
Automatically control mos switch module and recover conducting, make circuit normal power supply it is not necessary to artificially change electric fuse, save manpower thing
While power cost, drastically increase oil well logging efficiency.
The above is preferred implementation of the present utility model it is noted that ordinary skill for the art
For personnel, on the premise of without departing from this utility model principle, some improvements and modifications can also be made, these improve and moisten
Decorations are also considered as protection domain of the present utility model.
Claims (8)
1. there is the logger circuit protection device of warning function it is characterised in that including circuit board (4) and alarm (9),
Current detection module (41), single-chip microcomputer (42) and mos switch module (43), described electric current inspection are provided with described circuit board (4)
Survey module (41) to be connected with the power supply interface (81) of downhole petroleum logger (8), for measuring downhole petroleum logger (8)
Power supply interface (81) output current；
Described mos switch module (43) is connected in the power supply output circuit of downhole petroleum logger (8)；
Described single-chip microcomputer (42) is connected with described alarm (9), current detection module (41) and mos switch module (43) respectively.
2. the logger circuit protection device with warning function according to claim 1 is it is characterised in that also include
Shell (1) and cover plate (5), offer the groove (7) for accommodating described circuit board (4), described circuit board in described shell (1)
(4) it is arranged in described groove (7).
3. the logger circuit protection device with warning function according to claim 2 is it is characterised in that also include
First joint (2) and the second joint (3), described first joint (2) and the second joint (3) are separately positioned on described shell (1)
Two ends, and described first joint (2) and the second joint (3) be all connected with described circuit board (4).
4. the logger circuit protection device with warning function according to claim 3 is it is characterised in that also include
Collar (6), described collar (6) is arranged on outside described second joint (3), and described collar (6) is with described shell (1) activity even
Connect.
5. the logger circuit protection device with warning function according to claim 3 is it is characterised in that described electricity
Stream detection module (41) includes the current detecting chip (44) for detecting size of current.
6. the logger circuit protection device with warning function according to claim 5 is it is characterised in that described electricity
Stream detection module (41) also includes current amplifier (45).
7. the logger circuit protection device with warning function according to claim 2 is it is characterised in that described outer
Shell (1) is cylinder.
8. the logger circuit protection device with warning function according to claim 4 is it is characterised in that described
One joint (2) is three needle adapters, and described second joint (3) is ten needle adapters, and described second joint (3) and described collar (6)
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620786483.7U CN205901258U (en) | 2016-07-25 | 2016-07-25 | Logging instrument circuit protection device with alarming function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620786483.7U CN205901258U (en) | 2016-07-25 | 2016-07-25 | Logging instrument circuit protection device with alarming function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205901258U true CN205901258U (en) | 2017-01-18 |
Family
ID=57785072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620786483.7U Expired - Fee Related CN205901258U (en) | 2016-07-25 | 2016-07-25 | Logging instrument circuit protection device with alarming function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205901258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113734070A (en) * | 2020-05-28 | 2021-12-03 | 北京罗克维尔斯科技有限公司 | Fuse replacement reminding method for vehicle and vehicle |
-
2016
- 2016-07-25 CN CN201620786483.7U patent/CN205901258U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113734070A (en) * | 2020-05-28 | 2021-12-03 | 北京罗克维尔斯科技有限公司 | Fuse replacement reminding method for vehicle and vehicle |
| CN113734070B (en) * | 2020-05-28 | 2023-06-02 | 北京罗克维尔斯科技有限公司 | Fuse replacement reminding method of vehicle and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20210725 |