CN206977306U - A kind of portable handcart vacuum switch attribute testing auxiliary power unit - Google Patents
A kind of portable handcart vacuum switch attribute testing auxiliary power unit Download PDFInfo
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- CN206977306U CN206977306U CN201720691421.2U CN201720691421U CN206977306U CN 206977306 U CN206977306 U CN 206977306U CN 201720691421 U CN201720691421 U CN 201720691421U CN 206977306 U CN206977306 U CN 206977306U
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Abstract
The utility model discloses a kind of portable handcart vacuum switch attribute testing auxiliary power unit, it is related to handcart vacuum switch attribute testing technical field.Described portable handcart vacuum switch attribute testing auxiliary power unit, external communication electricity power supply either built-in lithium battery can be selected to power according to the power conditions at scene, the powerup issue of auxiliary power unit when solving scene without alternating current；The utility model can export the direct current or alternating current of required multiple different sizes according to being actually needed, and without artificial energy storage, improve operating efficiency and the portability of work；The utility model compact, it is easy to carry and operates, reduces experimentation cost while reliable operation.
Description
Technical field
The utility model belongs to handcart vacuum switch attribute testing technical field, more particularly to a kind of portable handcart vacuum
Switching characteristic tests auxiliary power unit.
Background technology
At present, handcart type vacuum switch is widely used in power system, and the switch cubicle in the power system enters
During row transformation, it usually needs handcart type vacuum switching characteristic experiment is carried out, to ensure the safe and reliable operation of power system.So
And in working site, many times secondary power supply does not access the commissioning test for beginning to carry out handcart-type switch characteristic also；In work
As scene generally require carry power supply disks carry out patching operations, do not only exist bracing wire difficulty, reduce operating efficiency the problems such as, and
Field Force carries out needing artificial energy storage during switching characteristic experiment, wastes time and energy, especially in the transformation of large-scale switch cubicle,
Operating efficiency is very low.
In order to solve the problem, it will usually using power supply unit for the attribute testing that handcart type vacuum switchs provide needed for
Voltage and current, without artificial energy storage, so as to improve operating efficiency, however, because existing power supply unit does not possess generally
The function of a variety of different size power supply selection outputs, it can not so meet the attribute testing of handcart type vacuum switch to different rule
The alternating current of lattice and the demand of direct current.Therefore, in the attribute testing of existing handcart type vacuum switch, it usually needs multiple
The power supply unit of different size, cause cost needed for the attribute testing of handcart type vacuum switch higher, and the volume of device therefor
It is huge, not readily portable and operation.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of portable handcart vacuum switch attribute testing auxiliary electricity
Source device, while meet the power supply of all size needed for different vacuum switch attribute testings, and compact, reliable operation.
The utility model is that solve above-mentioned technical problem by the following technical solutions：A kind of portable handcart vacuum
Switching characteristic tests auxiliary power unit, including ACDC rectification modules, built-in lithium battery, input selecting module, DCDC switch electricity
Source module, DCAC Inverters, DC110V/220V output selecting module, AC220V output modules, measure voltage ＆ current and
Over-voltage over-current protection module and distributed electrical source control system；The input external AC of the ACDC rectification modules；Institute
The input for stating input selecting module is connected with the output end and built-in lithium battery of the ACDC rectification modules respectively, the input
The output end of selecting module respectively the input with the DCDC switch power modules, DCAC Inverters input and
Distributed electrical source control system connects；The distributed electrical source control system is electric with the built-in lithium battery, DCDC switches respectively
Source module, DCAC Inverters, DC110V/220V output selecting modules and measure voltage ＆ current and over-voltage over-current protection
Module connects；The output end of the DCDC switch power modules is connected with the input of DC110V/220V output selecting modules；
The output end of DCAC Inverters is connected with the input of AC220V output modules；The measure voltage ＆ current and mistake press through
Stream protection module exports selecting module with the DC110V/220V respectively and AC220V output modules are connected；
The ACDC rectification modules, for the DC voltage being converted into the alternating voltage of input needed for late-class circuit, it is
The auxiliary power unit provides externally fed；The built-in lithium battery, at the scene without alternating current in the case of, be described
Auxiliary power unit provides required back-up source；The input selecting module, for being for auxiliary power unit selection
Powered by the power supply of external communication electricity or by built-in lithium battery；The DCDC switch power modules, for by the direct current of input
Pressure is converted into different direct voltage outputs；The DCAC Inverters, for the DC voltage of input to be converted into surely
Fixed alternating voltage output；The distributed electrical source control system, for realizing to input selecting module, DCDC Switching Power Supply moulds
The control of block and DCAC Inverters, the DC voltage of control DC110V/220V output selecting module output different sizes,
The discharge and recharge of built-in lithium battery is controlled, handles the feedback signal of measure voltage ＆ current and over-voltage over-current protection module；It is described
DC110V/220V exports selecting module, for selecting to export different DC voltages；The AC220V output modules, for defeated
Go out 220V alternating currents；Measure voltage ＆ current and the over-voltage over-current protection module, for realizing the voltage and current signal to output
Collection and protection, and the signal collected is fed back into distributed electrical source control system.
Further, the ACDC rectification modules include rectifier bridge, switching-on resistance and the filter capacitor being sequentially connected, institute
Stating ACDC rectification modules also includes the closing relay in parallel with switching-on resistance；The input external AC of the rectifier bridge；
The output end of the filter capacitor is connected with the input selecting module.
Further, the closing relay include sample circuit that shell and being arranged on is sequentially connected in shell, every
From circuit, mu balanced circuit, delay circuit, startup and holding circuit and control circuit.
Further, the isolation circuit uses light isolation device, the light isolation device include cylindrical shape magnetic tube,
External package pipe, spill fixture and the core members being made up of polaroid, Faraday rotor of cylindrical shape；The spill fixture
It is made up of two annular side plates and connecting plate, described two annular side plates are located at the both sides of the connecting plate in the same direction, and hang down
Directly in connecting plate；The size of described two annular side plates is identical, and ring heart is light hole；The core members are bonded in the connection
On plate；The spill fixture is located in the magnetic tube of the cylindrical shape, and two annular side plates of spill fixture and company
The inwall of the magnetic tube of fishplate bar and cylindrical shape fits；The magnetic tube of the cylindrical shape is located at the external package pipe of the cylindrical shape
It is interior；The annular side plate of the external package pipe of the cylindrical shape, the magnetic tube of cylindrical shape and spill fixture is concentric.
Further, the built-in lithium battery is the lithium battery group being made up of multiple lithium batteries, described multiple lithium batteries
It is fixed by sectional shelf-unit, and multiple lithium batteries are connected in series or parallel by nickel sheet；On the multiple lithium battery
It is welded with lithium electric protection plate；The lithium battery group with lithium electric protection plate is fixedly mounted in battery-pack exterior casing, the battery pack
Shell is provided with charge port and discharge port；The discharge port is connected with input selecting module, the charge port and distributed power source
Control system connects.
Further, the DCDC switch power modules are that the active clamp being made up of integrated chip ISL6726 is synchronously whole
Streaming switch power module, exportable DC220V/5A and DC110V/10A.
Further, the DCAC Inverters are the sinewave inverters being made up of integrated chip EG8010, can
Export AC220V/5A；Using digital inverter, make the auxiliary power unit simpler flexibly, cost is lower and can
It is higher by property.
Further, the distributed electrical source control system selects microcontroller LPC1768, and operating frequency is reachable
100MHz, there is more flexible control algolithm and stronger interference free performance.
Further, measure voltage ＆ current and the over-voltage over-current protection module include direct current voltage detection circuit,
DC over-voltage current foldback circuit, AC current-voltage detection circuit and exchange over-voltage over-current protection circuit；Described direct current
Current Voltage detection circuit, DC over-voltage current foldback circuit, AC current-voltage detection circuit and exchange over-voltage and over-current are protected
Protection circuit is connected with the distributed electrical source control system respectively.
Compared with prior art, portable handcart vacuum switch attribute testing accessory power supply dress provided by the utility model
Put, external communication electricity power supply either built-in lithium battery can be selected to power according to the power conditions at scene, solve scene without friendship
The powerup issue of auxiliary power unit when flowing electric；The utility model can export required multiple differences according to being actually needed
The direct current or alternating current of specification, without artificial energy storage, improve operating efficiency and the portability of work；The utility model body
Product is compact, is easy to carry and operates, and reduces experimentation cost while reliable operation.
Brief description of the drawings
It is required in being described below to embodiment to use in order to illustrate more clearly of the technical solution of the utility model
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only one embodiment of the present utility model, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of structured flowchart of portable handcart vacuum switch attribute testing auxiliary power unit of the utility model；
Fig. 2 is the structured flowchart of the utility model ACDC rectification modules；
Fig. 3 is the exploded view of the utility model light isolation device；
Wherein, 1- core members, 2- spill fixtures, 21- connecting plates, 22- annular side plates, the magnetic tube of 3- cylindrical shapes,
The inwall of 31- cylindrical shape magnetic tubes, the external package pipe of 4- cylindrical shapes.
Embodiment
With reference to the accompanying drawing in the utility model embodiment, technical scheme of this implementation in new is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole embodiments.
Based on the embodiment in the utility model, those of ordinary skill in the art are obtained on the premise of creative work is not made
Every other embodiment, belong to the utility model protection scope.
A kind of as shown in figure 1, portable handcart vacuum switch attribute testing accessory power supply dress provided by the utility model
Put, including ACDC rectification modules, built-in lithium battery, input selecting module, DCDC switch power modules, DCAC inverter moulds
Block, DC110V/220V outputs selecting module, AC220V output modules, measure voltage ＆ current and over-voltage over-current protection module and
Distributed electrical source control system；The input external AC of ACDC rectification modules；Input selecting module input respectively with
The output end of ACDC rectification modules connects with built-in lithium battery, input the output end of selecting module respectively with DCDC Switching Power Supply moulds
The input of block, the input of DCAC Inverters connect with distributed electrical source control system；Distributed power source control system
System exports selecting module with built-in lithium battery, DCDC switch power modules, DCAC Inverters, DC110V/220V respectively
And measure voltage ＆ current connects with over-voltage over-current protection module；The output end and DC110V/220V of DCDC switch power modules
Export the input connection of selecting module；The output end of DCAC Inverters connects with the input of AC220V output modules
Connect；Measure voltage ＆ current and over-voltage over-current protection module export selecting module and AC220V output moulds with DC110V/220V respectively
Block connects.
As shown in Fig. 2 ACDC rectification modules include rectifier bridge, switching-on resistance and the filter capacitor being sequentially connected, ACDC
Rectification module also includes the closing relay in parallel with switching-on resistance；The input external AC of rectifier bridge；Filter capacitor
Output end is connected with input selecting module；The external 220V alternating currents of input of rectifier bridge, the output ripple after rectifier bridge
DC voltage, then charged by switching-on resistance to filter capacitor, after the voltage on electric capacity to be filtered is basicly stable, control close a floodgate after
Electrical equipment is short-circuit by switching-on resistance, now, filter capacitor output steady dc voltage signal, for rear class DCDC Switching Power Supply moulds
Block and DCAC Inverters use.
Closing relay includes shell and is arranged on the sample circuit being sequentially connected in shell, isolation circuit, voltage stabilizing electricity
Road, delay circuit, startup and holding circuit and control circuit.
As shown in figure 3, isolation circuit uses light isolation device, light isolation device includes magnetic tube 3, the cylinder of cylindrical shape
External package pipe 4, spill fixture 2 and the core members 1 being made up of polaroid, Faraday rotor of shape；Spill fixture 2 is by two
Annular side plate 22 and connecting plate 21 form, and two annular side plates 22 are located at the both sides of connecting plate 21 in the same direction, and perpendicular to even
Fishplate bar 21；The size of two annular side plates 22 is identical, and ring heart is light hole；Core members 1 are bonded on connecting plate 21；Spill is consolidated
Determine part 2 to be located in the magnetic tube 3 of cylindrical shape, and the two annular side plates 22 and connecting plate 21 and cylinder of spill fixture 2
The inwall 31 of the magnetic tube of shape fits；The magnetic tube 3 of cylindrical shape is located in the external package pipe 4 of cylindrical shape；The covering of cylindrical shape
The annular side plate 22 of pipe 4, the magnetic tube 3 of cylindrical shape and spill fixture 1 is concentric；The light isolation device simplifies structure
Part, it reduce further bulking value of the present utility model.
Built-in lithium battery is the lithium battery group being made up of multiple lithium batteries, and multiple lithium batteries are consolidated by sectional shelf-unit
It is fixed, and multiple lithium batteries are connected in series or parallel by nickel sheet；Lithium electric protection plate is welded with multiple lithium batteries；Band lithium electricity
The lithium battery group of protection board is fixedly mounted in battery-pack exterior casing, and battery-pack exterior casing is provided with charge port and discharge port；Discharge port
It is connected with input selecting module, charge port is connected with distributed electrical source control system；The built-in lithium battery group has that capacity is big, body
Product is small, in light weight, security performance is high, has extended cycle life, and can meet user's high power discharge demand.
DCDC switch power modules are the active clamp synchronous rectification formula Switching Power Supply moulds being made up of integrated chip ISL6726
Block, output DC220V/5A and DC110V/10A may be selected, the d. c. voltage signal for specifically exporting which kind of specification depends on distribution
Control of the power control system to DCDC switch power modules；More efficient compared to traditional Switching Power Supply, heating is smaller,
Bulking value also decreases.
DCAC Inverters are the sinewave inverters being made up of integrated chip EG8010, exportable AC220V/5A；
Using digital inverter, make the utility model simpler flexibly, cost is lower and reliability is higher.
Distributed electrical source control system selects microcontroller LPC1768, and operating frequency has more flexible up to 100MHz
Control algolithm and stronger interference free performance.
Measure voltage ＆ current and over-voltage over-current protection module include direct current voltage detection circuit, DC over-voltage excessively stream is protected
Protection circuit, AC current-voltage detection circuit and exchange over-voltage over-current protection circuit；It is institute direct current voltage detection circuit, straight
Flow over-voltage over-current protection circuit, AC current-voltage detection circuit and exchange over-voltage over-current protection circuit respectively with distributed electrical
Source control system connects, for detecting the direct current voltage signals of DCDC switch power modules, DCAC Inverters
AC current-voltage signal, and the direct current voltage signal to output and AC current-voltage signal and the progress of default threshold value
Compare, to ensure the reliable and stable work of the utility model.
The utility model output direct current 220V, direct current 110V and a variety of different sizes of alternating current 220V power supply, can not only
Accessory power supply is provided for switching characteristic experiment, moreover it is possible to provides alternating current-direct current work electricity for the on-site calibration device of electric protection device
Source, such as：Density monitor verifies, the micro- water tests of SF6, transformer voltage x current test etc., and the experiment item of wide variety of conventional
The test of mesh, such as D.C. resistance, loop resistance test, dielectric loss test, megger test.This kind of pilot project requirement
Power supply power is all no more than 1.5KVA in below 1KVA, peak value substantially, and is required for exchanging 50Hz, 220V power supplies.This
Utility model uses high reliability power Li-ion batteries piles, can meet the requirement of power system short time big multiplying power discharging,
And high stability sine-wave inverter is designed using newest Power Electronic Technique, output waveform aberration rate is small, and the distortion factor is low,
Frequency stability is high, substantially increases the power supply reliability of electrical equipment.The utility model uses distributed electrical source control system
Direct current is controlled simultaneously and exchanges the output of two-way experiment power supply, and shares measure voltage ＆ current and over-voltage over-current protection module,
Simplify the complexity of circuit.
Above disclosed is only specific embodiment of the present utility model, but the scope of protection of the utility model not office
It is limited to this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Change or modification, should all cover within the scope of protection of the utility model.
Claims (9)
- A kind of 1. portable handcart vacuum switch attribute testing auxiliary power unit, it is characterised in that：Including ACDC rectification modules, Built-in lithium battery, input selecting module, DCDC switch power modules, DCAC Inverters, DC110V/220V output selections Module, AC220V output modules, measure voltage ＆ current and over-voltage over-current protection module and distributed electrical source control system；It is described The input external AC of ACDC rectification modules；It is described input selecting module input respectively with the ACDC rectification modules Output end connected with built-in lithium battery, it is described input selecting module output end respectively with the DCDC switch power modules Input, the input of DCAC Inverters connect with distributed electrical source control system；The distributed power source control system System selects with the built-in lithium battery, DCDC switch power modules, DCAC Inverters, DC110V/220V outputs respectively Module and measure voltage ＆ current connect with over-voltage over-current protection module；The output end of the DCDC switch power modules with The input connection of DC110V/220V output selecting modules；The output end of DCAC Inverters and AC220V output modules Input connection；Measure voltage ＆ current and the over-voltage over-current protection module exports with the DC110V/220V select respectively Module connects with AC220V output modules.
- 2. portable handcart vacuum switch attribute testing auxiliary power unit as claimed in claim 1, it is characterised in that：It is described ACDC rectification modules include rectifier bridge, switching-on resistance and the filter capacitor being sequentially connected, and the ACDC rectification modules also include The closing relay in parallel with switching-on resistance；The input external AC of the rectifier bridge；The output end of the filter capacitor It is connected with the input selecting module.
- 3. portable handcart vacuum switch attribute testing auxiliary power unit as claimed in claim 2, it is characterised in that：It is described Closing relay includes shell and is arranged on the sample circuit being sequentially connected in shell, isolation circuit, mu balanced circuit, delay electricity Road, startup and holding circuit and control circuit.
- 4. portable handcart vacuum switch attribute testing auxiliary power unit as claimed in claim 3, it is characterised in that：It is described Isolation circuit uses light isolation device, and the light isolation device includes the magnetic tube of cylindrical shape（3）, cylindrical shape external package pipe （4）, spill fixture（2）And the core members being made up of polaroid, Faraday rotor（1）；The spill fixture（2）By two Individual annular side plate（22）And connecting plate（21）Composition, described two annular side plates（22）The connecting plate is located in the same direction（21） Both sides, and perpendicular to connecting plate（21）；Described two annular side plates（22）Size it is identical, ring heart is light hole；It is described Core members（1）It is bonded in the connecting plate（21）On；The spill fixture（2）It is located at the magnetic tube of the cylindrical shape（3）It is interior, And spill fixture（2）Two annular side plates（22）And connecting plate（21）With the inwall of the magnetic tube of cylindrical shape（31）It is affixed Close；The magnetic tube of the cylindrical shape（3）It is located at the external package pipe of the cylindrical shape（4）It is interior；The external package pipe of the cylindrical shape （4）, cylindrical shape magnetic tube（3）And spill fixture（2）Annular side plate（22）It is concentric.
- 5. portable handcart vacuum switch attribute testing auxiliary power unit as claimed in claim 1, it is characterised in that：It is described Built-in lithium battery is the lithium battery group being made up of multiple lithium batteries, and described multiple lithium batteries are fixed by sectional shelf-unit, And multiple lithium batteries are connected in series or parallel by nickel sheet；Lithium electric protection plate is welded with the multiple lithium battery；It is described Lithium battery group with lithium electric protection plate is fixedly mounted in battery-pack exterior casing, and the battery-pack exterior casing is provided with charge port and electric discharge Mouthful；The discharge port is connected with input selecting module, and the charge port is connected with distributed electrical source control system.
- 6. portable handcart vacuum switch attribute testing auxiliary power unit as claimed in claim 1, it is characterised in that：It is described DCDC switch power modules are the active clamp synchronous rectification formula switch power modules being made up of integrated chip ISL6726, selection Export DC220V/5A and DC110V/10A.
- 7. portable handcart vacuum switch attribute testing auxiliary power unit as claimed in claim 1, it is characterised in that：It is described DCAC Inverters are the sinewave inverters being made up of integrated chip EG8010, export AC220V/5A.
- 8. portable handcart vacuum switch attribute testing auxiliary power unit as claimed in claim 1, it is characterised in that：It is described Distributed electrical source control system selects microcontroller LPC1768.
- 9. portable handcart vacuum switch attribute testing auxiliary power unit as claimed in claim 1, it is characterised in that：It is described Measure voltage ＆ current and over-voltage over-current protection module include direct current voltage detection circuit, DC over-voltage current foldback circuit, AC current-voltage detects circuit and exchange over-voltage over-current protection circuit；Described direct current voltage detects circuit, direct current Over-voltage over-current protection circuit, AC current-voltage detection circuit and exchange over-voltage over-current protection circuit respectively with the distribution Power control system connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720691421.2U CN206977306U (en) | 2017-06-14 | 2017-06-14 | A kind of portable handcart vacuum switch attribute testing auxiliary power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720691421.2U CN206977306U (en) | 2017-06-14 | 2017-06-14 | A kind of portable handcart vacuum switch attribute testing auxiliary power unit |
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| Publication Number | Publication Date |
|---|---|
| CN206977306U true CN206977306U (en) | 2018-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720691421.2U Expired - Fee Related CN206977306U (en) | 2017-06-14 | 2017-06-14 | A kind of portable handcart vacuum switch attribute testing auxiliary power unit |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115675176A (en) * | 2022-10-28 | 2023-02-03 | 重庆长安汽车股份有限公司 | Electric automobile storage battery and power battery integrated system and electric automobile |
-
2017
- 2017-06-14 CN CN201720691421.2U patent/CN206977306U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115675176A (en) * | 2022-10-28 | 2023-02-03 | 重庆长安汽车股份有限公司 | Electric automobile storage battery and power battery integrated system and electric automobile |
| CN115675176B (en) * | 2022-10-28 | 2024-05-17 | 重庆长安汽车股份有限公司 | Electric automobile battery and power battery integrated system and electric automobile |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 Termination date: 20180614 |
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| CF01 | Termination of patent right due to non-payment of annual fee |