CN207232335U - A kind of direct-current switch cabinet voltage dosage device - Google Patents
A kind of direct-current switch cabinet voltage dosage device Download PDFInfo
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- CN207232335U CN207232335U CN201721113978.4U CN201721113978U CN207232335U CN 207232335 U CN207232335 U CN 207232335U CN 201721113978 U CN201721113978 U CN 201721113978U CN 207232335 U CN207232335 U CN 207232335U
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Abstract
The utility model discloses a kind of direct-current switch cabinet voltage dosage device, including secondary battery unit, partial pressure current limiting unit, for adjusting the pressure regulation unit of output voltage, for showing the display of current output voltage value, and the voltage regulation unit for regulated output voltage, the partial pressure current limiting unit is connected after connecting with the pressure regulation unit with the secondary battery unit, the secondary battery unit provides working power for the display and the voltage regulation unit, the output terminal of the pressure regulation unit and the input terminal of the display, and the input terminal connection of the voltage regulation unit, voltage needed for the output terminal output of the voltage regulation unit.The utility model has the advantages that to be convenient for carrying, easy to onsite application.
Description
Technical field
It the utility model is related to direct-current switch cabinet, more particularly to a kind of direct-current switch cabinet voltage dosage device.
Background technology
For direct-current switch cabinet in occupation of very important status in metro traction power system, what direct current opened the light cabinet product can
The reliability of subway power supply has been largely fixed by property, and the reliability powered directly determines subway normal operation
Reliability, if direct-current switch cabinet is not tested sufficiently during the installation and debugging of early period, verified, the normal fortune of follow-up subway
Battalion can have very big security risk.
When direct-current switch cabinet dispatches from the factory debugging and field adjustable, it is necessary to carry out checking test to defencive function.Tested
The electric current of milliampere level or the voltage of millivolt level are produced in journey by small-signal generator, is added in the measurement input of protective device
End, the change of electricity in major loop is simulated by controlling the change of small-signal, and whether the defencive function of product is verified with this
Normally.In subway power supply equipment, the small-signal of protective device is accessed more based on the current signal of 4mA-20mA, equipment adds
It is also most commonly seen with current generating apparatus to measure device, and in practice, it is 0- that the input of direct-current switch cabinet protective device, which has part signal,
The voltage signal of 10V, is difficult often to find corresponding dosage device when carrying out protection checking test at the scene.It is portable small
Signal generator mainly based on millivolt/milliampere signal, does not reach the dosage requirement of 10V, although and relay protection tester can produce
The voltage of raw 0-10V, meets test requirements document, but since its is bulky and hulking, and secondary power supply need to be accessed, onsite application is extremely not
Just, without being used.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies of the prior art and provide one kind to be convenient for carrying, be easy to
The direct-current switch cabinet voltage dosage device of onsite application.
In order to solve the above technical problems, the utility model uses following technical scheme：
A kind of direct-current switch cabinet voltage dosage device, including secondary battery unit, partial pressure current limiting unit, for adjust output electricity
Pressure regulation unit, the display for showing current output voltage value and the voltage regulation unit for regulated output voltage of pressure, institute
State after partial pressure current limiting unit is connected with the pressure regulation unit and be connected with the secondary battery unit, the secondary battery unit is described aobvious
Show that device and the voltage regulation unit provide working power, the output terminal of the pressure regulation unit with the input terminal of the display, with
And the input terminal connection of the voltage regulation unit, voltage needed for the output terminal output of the voltage regulation unit.
Further as above-mentioned technical proposal is improved：The partial pressure current limiting unit is fixed resistance, the pressure regulation unit
For variable resistor.
Further as above-mentioned technical proposal is improved：The pressure regulation unit is swept resistance.
Further as above-mentioned technical proposal is improved：The secondary battery unit includes the 9V batteries of two section series connection, described
Partial pressure current limiting unit resistance value is 3k Ω, and the maximum value of the pressure regulation unit is 15k Ω.
Further as above-mentioned technical proposal is improved：The voltage regulation unit is voltage follower.
Further as above-mentioned technical proposal is improved：Direct-current switch cabinet voltage dosage device further includes housing, the storage
Battery unit, the partial pressure current limiting unit, the pressure regulation unit, the display and the voltage regulation unit are arranged in described
On housing.
Further as above-mentioned technical proposal is improved：The housing is equipped with external output wiring terminal, described external
Output wiring terminal is configured with a variety of replaceable plugs.
Further as above-mentioned technical proposal is improved：The plug includes clip, 0.5mm2Tubular terminal, 1.5mm2
Tubular terminal, test pencil and coiling.
Further as above-mentioned technical proposal is improved：The housing is equipped with the insulating tape of carry magnet.
Further as above-mentioned technical proposal is improved：The housing is equipped with the adjusting for being used for adjusting the pressure regulation unit
Knob.
Compared with prior art, the utility model has the advantage of：Direct-current switch cabinet voltage adds disclosed in the utility model
Device is measured, power unit uses secondary battery unit, without secondary power supply, larger voltage can be provided with less volume, just
Take and facilitate dismounting and change, secondary battery unit carries out partial pressure current limliting by partial pressure current limiting unit, and output voltage successively passes through pressure regulation
Unit is adjusted, is externally exported after the pressure stabilization function of voltage regulation unit, can meet the dosage demand of 0-10V, simple in structure, reliable, is shown
Show the device magnitude of voltage that then real-time display currently externally exports, personnel easy to operation carry out checking test, are particularly suitable for severe
Site environment uses.
Brief description of the drawings
Fig. 1 is the principle schematic of the utility model direct-current switch cabinet voltage dosage device.
Fig. 2 is the external structure schematic diagram of the utility model direct-current switch cabinet voltage dosage device.
Each label represents in figure：1st, secondary battery unit；2nd, partial pressure current limiting unit；3rd, pressure regulation unit；4th, display；5th, voltage stabilizing
Unit；6th, housing；61st, external output wiring terminal；62nd, insulating tape；63rd, adjusting knob；64th, switch.
Embodiment
The utility model is described in further detail below in conjunction with Figure of description and specific embodiment.
Figures 1 and 2 show that a kind of embodiment of the utility model, the direct-current switch cabinet voltage dosage dress of the present embodiment
Put, including secondary battery unit 1, partial pressure current limiting unit 2, the pressure regulation unit 3 for adjusting output voltage, for showing current output
The display 4 of magnitude of voltage and the voltage regulation unit 5 for regulated output voltage, partial pressure current limiting unit 2 are connected with pressure regulation unit 3
It is connected afterwards with secondary battery unit 1, secondary battery unit 1 provides working power for display 4 and voltage regulation unit 5, pressure regulation unit 3
Output terminal is connected with the input terminal of display 4 and the input terminal of voltage regulation unit 5, electricity needed for the output terminal output of voltage regulation unit 5
Pressure.
The utility model direct-current switch cabinet voltage dosage device, power unit uses secondary battery unit 1, without secondary electricity
Source, can provide larger voltage with less volume, portable and facilitate dismounting and change, and secondary battery unit 1 passes through partial pressure current limliting
Unit 2 carries out partial pressure current limliting, and output voltage successively adjusts by pressure regulation unit 3, is externally defeated after the pressure stabilization function of voltage regulation unit 5
Go out, can meet the dosage demand of 0-10V, simple in structure, reliable, display 4 then obtains voltage signal and real-time from pressure regulation unit 3
The current magnitude of voltage externally exported of display, personnel easy to operation carry out checking test, and being particularly suitable for severe site environment makes
With.
As further preferred technical solution, in the present embodiment, partial pressure current limiting unit 2 is fixed resistance, pressure regulation unit 3
For variable resistor.Partial pressure current limiting unit 2 uses variable resistor using fixed resistance, pressure regulation unit 3, simple in structure, reliable, externally
Output voltage is easy to adjust.Further, 3 preferred swept resistance of pressure regulation unit, sets on housing 6 and is used for adjusting pressure regulation unit
3 adjusting knob 63, the resistance value size of swept resistance is adjusted by adjusting knob 63, and then adjusts what is taken out from swept resistance
The size of output voltage.
Further, in the present embodiment, secondary battery unit 1 includes the 9V batteries of two section series connection, and partial pressure current limiting unit 2 hinders
It is worth for 3k Ω, the maximum value of pressure regulation unit 3 is 15k Ω.That is, the output voltage adjustable range taken out from swept resistance is
0-15V, the dosage demand compared to 0-10V, has certain surplus, meets use demand.In other embodiments, storage battery list
Member 1 can also use the battery customized to realize function.
Further, in the present embodiment, voltage regulation unit 5 is voltage follower.Using voltage follower input impedance it is high,
The low characteristic of output impedance, so as to achieve the purpose that to stablize external output voltage.In other embodiments, voltage regulation unit 5 also may be used
Function is realized using other regulator circuits.
As further preferred technical solution, in the present embodiment, direct-current switch cabinet voltage dosage device further includes housing
6, secondary battery unit 1, partial pressure current limiting unit 2, pressure regulation unit 3, display 4 and voltage regulation unit 5 are arranged on housing 6.
Each component is arranged using housing 6 and improve certain protective action.
Further, in the present embodiment, housing 6 is equipped with external output wiring terminal 61, external output wiring terminal
61 are configured with a variety of replaceable plug (not shown)s., can be according to scene by configuring a variety of replaceable plugs
Operating mode, flexibly selection.Referring specifically to following table：In the present embodiment, plug includes clip, 0.5mm2Tubular terminal, 1.5mm2Pipe
Shape terminal, test pencil and coiling.
| Sequence number | Plug species | Suitable environment |
| 1 | Clip | For being clipped in conducting wire both ends dosage |
| 2 | 0.5mm2Tubular terminal | For small-sized input port dosage |
| 3 | 1.5mm2Tubular terminal | For medium-and-large-sized input port and terminal block dosage |
| 4 | Test pencil | For dosage in narrow space |
| 5 | Coiling | Flexibly apply to other dosage occasions |
Further, in the present embodiment, housing 6 is equipped with the insulating tape 62 of carry magnet.Housing 6 can pass through insulating tape 62
Absorption is fixed on the metal cabinet of direct-current switch cabinet, namely equipment is integrally adsorbed and is fixed on metal cabinet, is conducive to equipment
Used at the scene under adverse circumstances.
Although the utility model has been disclosed with preferred embodiment as above, but it is not limited to the utility model.It is any
Those skilled in the art, in the case where not departing from technical solutions of the utility model scope, all using the disclosure above
Technology contents technical solutions of the utility model are made with many possible changes and modifications, or be revised as the equivalent of equivalent variations
Embodiment.Therefore, every content without departing from technical solutions of the utility model, according to the utility model technical spirit to real above
Any simple modifications, equivalents, and modifications that example is done are applied, should all be fallen in the range of technical solutions of the utility model protection.
Claims (10)
- A kind of 1. direct-current switch cabinet voltage dosage device, it is characterised in that：Including secondary battery unit（1）, partial pressure current limiting unit （2）, pressure regulation unit for adjusting output voltage（3）, display for showing current output voltage value（4）And it is used for The voltage regulation unit of regulated output voltage（5）, the partial pressure current limiting unit（2）With the pressure regulation unit（3）After series connection with the storage Battery unit（1）Connection, the secondary battery unit（1）For the display（4）And the voltage regulation unit（5）Work electricity is provided Source, the pressure regulation unit（3）Output terminal and the display（4）Input terminal and the voltage regulation unit（5）Input terminal Connection, the voltage regulation unit（5）Output terminal output needed for voltage.
- 2. direct-current switch cabinet voltage dosage device according to claim 1, it is characterised in that：The partial pressure current limiting unit （2）For fixed resistance, the pressure regulation unit（3）For variable resistor.
- 3. direct-current switch cabinet voltage dosage device according to claim 2, it is characterised in that：The pressure regulation unit（3）For Swept resistance.
- 4. direct-current switch cabinet voltage dosage device according to claim 3, it is characterised in that：The secondary battery unit（1） Include the 9V batteries of two section series connection, the partial pressure current limiting unit（2）Resistance value is 3k Ω, the pressure regulation unit（3）Maximum value For 15 k Ω.
- 5. direct-current switch cabinet voltage dosage device according to claim 1, it is characterised in that：The voltage regulation unit（5）For Voltage follower.
- 6. direct-current switch cabinet voltage dosage device according to any one of claim 1 to 5, it is characterised in that：Further include Housing（6）, the secondary battery unit（1）, the partial pressure current limiting unit（2）, the pressure regulation unit（3）, the display（4）With And the voltage regulation unit（5）It is arranged in the housing（6）On.
- 7. direct-current switch cabinet voltage dosage device according to claim 6, it is characterised in that：The housing（6）It is equipped with External output wiring terminal（61）, the external output wiring terminal（61）It is configured with a variety of replaceable plugs.
- 8. direct-current switch cabinet voltage dosage device according to claim 7, it is characterised in that：The plug includes folder Son, 0.5mm2Tubular terminal, 1.5 mm2Tubular terminal, test pencil and coiling.
- 9. direct-current switch cabinet voltage dosage device according to claim 6, it is characterised in that：The housing（6）It is equipped with The insulating tape of carry magnet（62）.
- 10. direct-current switch cabinet voltage dosage device according to claim 6, it is characterised in that：The housing（6）It is equipped with For adjusting the pressure regulation unit（3）Adjusting knob（63）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721113978.4U CN207232335U (en) | 2017-08-31 | 2017-08-31 | A kind of direct-current switch cabinet voltage dosage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721113978.4U CN207232335U (en) | 2017-08-31 | 2017-08-31 | A kind of direct-current switch cabinet voltage dosage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207232335U true CN207232335U (en) | 2018-04-13 |
Family
ID=61860180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721113978.4U Active CN207232335U (en) | 2017-08-31 | 2017-08-31 | A kind of direct-current switch cabinet voltage dosage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207232335U (en) |
-
2017
- 2017-08-31 CN CN201721113978.4U patent/CN207232335U/en active Active
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