CN209356263U - A kind of mining individual dust sampler - Google Patents
A kind of mining individual dust sampler Download PDFInfo
- Publication number
- CN209356263U CN209356263U CN201920015005.XU CN201920015005U CN209356263U CN 209356263 U CN209356263 U CN 209356263U CN 201920015005 U CN201920015005 U CN 201920015005U CN 209356263 U CN209356263 U CN 209356263U
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- voltage
- microprocessor
- stablizer
- power supply
- aspiration pump
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Abstract
The utility model discloses a kind of mining individual dust samplers; including safety power supply, voltage-stablizer, aspiration pump; safety power supply, voltage-stablizer, aspiration pump are successively electrically connected; it further include microprocessor and under-voltage protecting circuit; microprocessor is electrically connected with safety power supply, voltage-stablizer and under-voltage protecting circuit respectively, and microprocessor is electrically connected by current detecting amplifying circuit and aspiration pump；The utility model is cooperated by the effect of microprocessor with amplifying circuit, and the stability of detection accuracy and voltage is improved, and then improves the stability of pumping pump discharge, and in addition microprocessor can be debugged directly, also reduce the debugging difficulty of voltage-stablizer；Simultaneously microprocessor can also real-time monitoring safety power supply battery capacity, observe battery capacity convenient for people, avoid and just charged using preceding every time, improve the convenience used.
Description
Technical field
The utility model relates to mining environmental testings, more particularly to a kind of mining individual dust sampler.
Background technique
Individual dust sampler is the instrument of dust in air mean concentration in a kind of one work team of measurement.Individual dust is adopted
Sample device is made of aspiration pump, digital timer, flow constant circuit, safety power supply etc..Instrument is furnished with one group of miniature dust pre-capture
Storage loads onto the filter membrane weighed in sampling head, then presses start key, sampler internal electric source passes through control before instrument work
Circuit processed is powered to motor, and driving aspiration pump is evacuated with constant flow rate, and after dust laden air is drawn into, dust is delayed at filter membrane
On.Motor pump startup simultaneously, timer starts timing, after sampling, clicks stop button, writes down the sampling time, so
Sampling weighing afterwards.
The sampler flow constant circuit used now is to use entire hardware control, i.e., is adjusted and controlled using adjustable voltage stabilizer
Voltage output processed, and then change pumping pump voltage, stablize aspiration pump extraction flow.But due to the individual of element and aspiration pump
Difference, so that the debugging difficulty of sampler is big, current control accuracy is low, and discharge stability is poor.In addition, existing instrument using it is preceding by
In electricity can not be observed, squeeze the time that uses that can not estimate electricity, thus using it is preceding no matter whether electricity sufficient all must be right
Electricity charges, and use is very inconvenient.
Therefore those skilled in the art are dedicated to researching and developing a kind of mining individual dust sampler, are able to solve existing electric current
The problem of discharge stability difference caused by detection accuracy is poor, debugging difficulty is big.
Utility model content
In view of the above drawbacks of the prior art, the technical problem to be solved by the utility model is to provide a kind of mining
Body dust sampler is able to solve existing inconvenient for use, the problems such as discharge stability is poor.
To achieve the above object, the utility model provides a kind of mining individual dust sampler, including safety power supply, steady
Depressor, aspiration pump, safety power supply, voltage-stablizer, aspiration pump are successively electrically connected, and further include microprocessor and under-voltage protecting circuit,
Microprocessor is electrically connected with safety power supply, voltage-stablizer and under-voltage protecting circuit respectively, the output end of voltage-stablizer and aspiration pump
The output end of input terminal connection, aspiration pump examines current detecting amplifying circuit by electric current and microprocessor is electrically connected；
It include battery voltage sensing module and current control module in microprocessor, battery voltage sensing module and safety are electric
Source is connected with under-voltage protecting circuit, and the input terminal of current control module is electrically connected by current detecting amplifying circuit with aspiration pump
It connects, output end is connect with voltage-stablizer.
Preferably, being also connected with charactron and timer on microprocessor.
Preferably, microprocessor is connect by charging circuit with safety power supply.
The utility model is cooperated by microprocessor and amplifying circuit, improves the stabilization of detection accuracy and voltage
Property, and then the stability of aspiration pump extraction flow is improved, in addition microprocessor can be debugged directly, thereby reduce steady
The debugging difficulty of depressor；Simultaneously microprocessor can also real-time monitoring safety power supply battery capacity, convenient for people observe battery
Electricity is avoided and is all charged using preceding every time, improves the convenience used.
Detailed description of the invention
Fig. 1 is the utility model circuit module theory structure schematic diagram；
Fig. 2 is the schematic diagram of circuit connection structure of the utility model；
Fig. 3 is the current control module of the utility model and the schematic diagram of circuit connection structure of aspiration pump；
Fig. 4 is the circuit and circuit of voltage-stablizer in Fig. 3, aspiration pump, under-voltage protecting circuit and current detecting amplifying circuit
The structural schematic diagram of connection；
Fig. 5 is the electrical block diagram of microprocessor in Fig. 3；
Fig. 6 is the electrical block diagram of charging circuit in Fig. 3；
Fig. 7 is the electrical block diagram of Fig. 3 Timer；
In figure: 1- safety power supply；2- voltage-stablizer；3- aspiration pump；4- microprocessor；41- battery voltage sensing module；42-
Current control module；5- under-voltage protecting circuit；6- current detecting amplifying circuit；7- charactron；8- timer；9- charging circuit.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples, it should be noted that, in the utility model
Description in, the orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, construct and operate in a particular manner, therefore should not be understood as to this is practical
Novel limitation.Term " first ", " second ", " third " etc. are used for description purposes only, and are not understood to indicate or imply phase
To importance.
As shown in Fig. 1,2,3 and Fig. 7, a kind of mining individual dust sampler, including safety power supply 1, voltage-stablizer 2, pumping
Pump 3, safety power supply 1, voltage-stablizer 2, aspiration pump 3 are successively electrically connected, and further include microprocessor 4 and under-voltage protecting circuit 5, micro- place
It manages device 4 to be electrically connected with safety power supply 1, voltage-stablizer 2 and under-voltage protecting circuit 5 respectively, the output end and aspiration pump 3 of voltage-stablizer 2
Input terminal connection, the output end of aspiration pump 3 is electrically connected by current detecting amplifying circuit 6 and microprocessor 4；Microprocessor
It include battery voltage sensing module 41 and current control module 42 in 4, battery voltage sensing module 41 and safety power supply 1 and under-voltage
Circuit 5 is protected to connect, the input terminal of current control module 42 is electrically connected by current detecting amplifying circuit 6 and aspiration pump 3, defeated
Outlet is connect with voltage-stablizer 2, in addition, being also connected with charactron 7 and timer 8 on microprocessor 4, wherein the input of charactron 7
End is connect with battery voltage sensing module 41.
As shown in Figures 5 to 7, the utility model is by the battery voltage sensing module 41 in microprocessor, for real-time
The supply voltage of monitoring, and the voltage of real-time monitoring is compared with preset low voltage value, when the power supply electricity of real-time monitoring
When pressure is less than preset low voltage value, under-voltage protecting circuit starting, safety power supply disconnects automatically；It avoids under low voltage condition,
Deep battery discharge extends the service life of battery, while before power-off, since the voltage of entire circuit is relatively stable,
Will not go out because brownout is unstable and the problem of cause chronometric data to lose；And microprocessor 4 passes through charging circuit 9 and peace
Full power supply 1 connects, convenient for charging the battery.
Battery voltage sensing module is also connect with charactron 7 simultaneously, can be by the electricity of numeral method safety power supply, i.e.,
Before charge, the voltage that can observe directly power supply can be used directly when electricity abundance, just preferential when not enough power supply
Charging, improves the convenience used.
As shown in Fig. 4 to Fig. 5, voltage-stablizer by voltage output to aspiration pump, examined by electric current by the current output terminal of aspiration pump
Then the electric current of monitoring is transferred in microprocessor by the big circuit monitoring electric current of measuring by amplifying circuit and A/D conversion circuit
Current control module 42.After current control module receives the load current signal of the transmission of current detecting amplifying circuit 6, it will load
Electric current B is compared with the no-load current A set in current control module 42, and is calculated no-load current A and changed to load electricity
The step number and variable quantity of B are flowed, and calculated result is transmitted to voltage-stablizer 2, the step number and change that voltage-stablizer 2 is provided according to microprocessor
Change amount signal adjusts voltage-stablizer voltage output, and aspiration pump is made to keep stability of flow, and whole process constantly recycles.Entire circulation is protected
The stabilization for loading in instrument use process and being evacuated pump discharge when variation is demonstrate,proved.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality according to the design of the utility model on the basis of existing technology in domain
Available technical solution is tested, it all should be within the scope of protection determined by the claims.
Claims (3)
1. a kind of mining individual dust sampler, including safety power supply (1), voltage-stablizer (2), aspiration pump (3), the safety power supply
(1), voltage-stablizer (2), aspiration pump (3) are successively electrically connected, it is characterized in that: further including microprocessor (4) and under-voltage protecting circuit
(5)；The microprocessor (4) is electrically connected with safety power supply (1), voltage-stablizer (2) and under-voltage protecting circuit (5) respectively, described
Under-voltage protecting circuit (5) output end is connect with the voltage-stablizer (2)；The output end of the voltage-stablizer (2) and the aspiration pump (3)
Input terminal connection；The output end of the aspiration pump (3) passes through current detecting amplifying circuit (6) and the microprocessor (4) electricity
Property connection；
It include battery voltage sensing module (41) and current control module (42) in the microprocessor (4)；The cell voltage
Detection module (41) is connect with safety power supply (1) and under-voltage protecting circuit (5)；The input terminal of the current control module (42) is logical
Overcurrent detects amplifying circuit (6) and aspiration pump (3) and is electrically connected, and output end is connect with the voltage-stablizer (2).
2. mining individual dust sampler as described in claim 1, it is characterized in that: being also connected on the microprocessor (4)
Charactron (7) and timer (8)；The input terminal of the charactron (7) is connect with the battery voltage sensing module (41).
3. mining individual dust sampler as described in claim 1, it is characterized in that: the output end of the microprocessor (4) is logical
Overcharge circuit (9) is connect with safety power supply (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920015005.XU CN209356263U (en) | 2019-01-06 | 2019-01-06 | A kind of mining individual dust sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920015005.XU CN209356263U (en) | 2019-01-06 | 2019-01-06 | A kind of mining individual dust sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209356263U true CN209356263U (en) | 2019-09-06 |
Family
ID=67801441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920015005.XU Active CN209356263U (en) | 2019-01-06 | 2019-01-06 | A kind of mining individual dust sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209356263U (en) |
-
2019
- 2019-01-06 CN CN201920015005.XU patent/CN209356263U/en active Active
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