CN203939681U - Vehicle mounted electric air compressor back pressure uninstalling system - Google Patents
Vehicle mounted electric air compressor back pressure uninstalling system Download PDFInfo
- Publication number
- CN203939681U CN203939681U CN201420267853.7U CN201420267853U CN203939681U CN 203939681 U CN203939681 U CN 203939681U CN 201420267853 U CN201420267853 U CN 201420267853U CN 203939681 U CN203939681 U CN 203939681U
- Authority
- CN
- China
- Prior art keywords
- valve
- inverter
- pressure
- back pressure
- vehicle mounted
- 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.)
- Expired - Lifetime
Links
- 210000003746 feather Anatomy 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- 101100190528 Arabidopsis thaliana PIN6 gene Proteins 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model relates to a kind of automotive system, specifically, relates to a kind of vehicle mounted electric air compressor back pressure uninstalling system.A kind of vehicle mounted electric air compressor back pressure uninstalling system, comprise electric compressor, inverter, feather valve and gas receiver, described inverter output end is connected with electric compressor, described electric compressor output terminal is connected with feather valve suction port by pipeline, described feather valve air outlet is connected with gas receiver by pipeline, between described electric compressor and feather valve, by pipeline, be connected with bleed valve, described bleed valve is electrically connected to inverter.The utility model, by bleed valve, can be opened a period of time voluntarily electric compressor, thereby the pressurized gas in pipeline is emitted after power-off, has avoided back pressure phenomenon, thereby makes the normally operation of safety of motor.
Description
Technical field
The utility model relates to a kind of automotive system, specifically, relates to a kind of vehicle mounted electric air compressor back pressure uninstalling system.
Background technique
At present, adopt the new-energy automobile of air braking system generally to adopt electric compressor that source of the gas is provided, electric compressor is changed into the DC electrical source of electrokinetic cell by inverter the ac power supply that is applicable to motor.During air compressor air feed, air pressure reaches after specified air pressure, and feather valve is opened, and the pipeline connection atmosphere before it is realized to pressure release, and the one-way valve of simultaneously opening in it is closed its later pipe-line system, thereby keeps air pressure.After feather valve, pipe-line system air pressure drops to feather valve closing pressure, and feather valve cuts out and being communicated with of atmosphere, and supply air line is communicated with, and air compressor starts to pipe-line system air feed.Yet, vehicle something unexpected happened, while causing the motor of electric compressor to be shut down in air feed process, now feather valve is not also opened, and in the pipeline before it, has certain pressure, and this phenomenon is referred to as back pressure.After vehicle trouble is got rid of, while starting electric compressor, motor is that band carries startup, and this can cause motor normally to start, and even causes burn-down of electric motor.In addition, this kind of working method is to start to start from car load, and electric compressor is running always just, and when system pressure reaches after rated pressure, air compressor still will turn round, and pressure is now by removal.Having caused like this waste of the energy,, to also there is certain influence its working life in while motor long time running.
Model utility content
The purpose of this utility model is to provide a kind of vehicle mounted electric air compressor back pressure uninstalling system.It can overcome motor abnormality and shut down the back pressure phenomenon existing in rear pipeline, makes the normally startup of safety of motor.In addition, it can also automatically close air compressor, energy saving when not needing air feed.
The technical solution of the utility model is: a kind of vehicle mounted electric air compressor back pressure uninstalling system, comprise electric compressor, inverter, feather valve and gas receiver, described inverter output end is connected with electric compressor, described electric compressor output terminal is connected with feather valve suction port by pipeline, described feather valve air outlet is connected with gas receiver by pipeline, between described electric compressor and feather valve, by pipeline, be connected with bleed valve, described bleed valve is electrically connected to inverter.
Further, described feather valve is provided with feedback port, and described feedback port place is provided with pressure transducer, and the output terminal of described pressure transducer is electrically connected to inverter.
Further, described feather valve comprises outlet valve, pressure-limit valve and the main line between feather valve suction port and air outlet, described main line is provided with one-way valve, the suction port of described pressure-limit valve is connected on the main line between one-way valve and air outlet, and the air outlet of described pressure-limit valve is connected with the control mouth of feedback port and outlet valve respectively.
Further, the output terminal of described pressure transducer is connected with the J12 pin of main control chip in inverter, and in described inverter, the J12 pin of main control chip and the control mouth of bleed valve are connected.
Further, also comprise electrokinetic cell, the output terminal of described electrokinetic cell is connected with J8 pin with the J7 of main control chip in inverter, and in described inverter, main control chip is connected with electric compressor for J1, J3, the J4 pin of electric power output.
Further, described pressure-limit valve is two position three way directional control valve.
Further, described outlet valve is bi-bit bi-pass selector valve.
The beneficial effects of the utility model are: the utility model is simple in structure, between electric compressor and feather valve, be connected a bleed valve, electric compressor can be opened a period of time voluntarily after power-off, thereby the pressurized gas in pipeline are emitted, avoided back pressure phenomenon, thereby made the normally operation of safety of motor.In addition, by set up a feedback port on feather valve, and at feedback port place, pressure transducer is set, intrasystem force value can be reflected on inverter timely, and by the control function of inverter, whether the running of intelligent control vehicle mounted electric air compressor, effectively saved the energy, improved the electric compressor life-span.
Accompanying drawing explanation
Fig. 1 is prior art structural representation;
Fig. 2 is the utility model structural representation;
Fig. 3 is the schematic diagram of the utility model feather valve work;
Fig. 4 is the utility model inverter control circuit schematic diagram;
In figure: 1-electric compressor, 2-feather valve, 2.1-pressure-limit valve, 2.2-outlet valve, 2.3-suction port, 2.4-air outlet, 2.5-feedback port, 2.6-relief opening, 2.7-one-way valve, 2.8-main line, 3-gas holder, 4-inverter, 5-pipeline, 6-pressure transducer, 7-bleed valve, 8-electrokinetic cell, 9-inverter power supply, 10-main control chip.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Be illustrated in figure 1 the structural representation of prior art, in figure, solid line is partly pipeline, and dotted portion is circuit.The new-energy automobile of available technology adopting air braking system generally adopts electric compressor 1 that source of the gas is provided, and the output terminal of electric compressor 1 connects the suction port 2.3 of feather valve 2 by pipeline 5, and the air outlet 2.4 of feather valve 2 is connected with at least one gas receiver 3.This system also comprises an inverter 4, and inverter 4 output terminals are connected with electric compressor 1.
Its working principle is as follows: by inverter 4, the DC electrical source of electrokinetic cell input is changed into and is applicable to the three-phase alternating-current supply of electric compressor 1 use and outputs to electric compressor 1.Electric compressor 1 is when air feed, air pressure reaches after specified air pressure, and feather valve 2 is opened, and the pipeline connection atmosphere before feather valve 2 is realized to pressure release, the one-way valve of simultaneously opening in it is closed its later pipe-line system, thereby keeps the air pressure of gas receiver 3 to remain unchanged.After feather valve 2, pipe-line system air pressure drops to feather valve 2 closing pressures, and feather valve 2 cuts out and being communicated with of atmosphere, and supply air line is communicated with, and air compressor starts to pipe-line system air feed.This structure is at vehicle something unexpected happened; while causing the motor of electric compressor 1 to be shut down in air feed process; can in system pipeline, produce back pressure; thereby cause the motor of electric compressor 1 to start or to damage; and because this kind of working method is to start to start from car load; electric compressor 1 is running always just, even if the air pressure in pipeline 5 reaches specified air pressure electric compressor 1, is also continuing air feed, and this has just caused the waste of the energy.
Be illustrated in figure 2 schematic diagram of the present utility model, in figure, solid line is partly pipeline, and dotted portion is gas circuit.The utility model has been set up a bleed valve 7 on the basis of existing technology on the output terminal of electric compressor 1 and the pipeline 5 between feather valve 2, and the model of this bleed valve 7 is 3754010-n9h00.On feather valve 2, have a feedback port 2.5, and be provided with a pressure transducer 6 at feedback port 2.5 places.As shown in Figure 3, feather valve 2 comprises outlet valve 2.1 and pressure-limit valve 2.2 and the main line 2.8 that is connected feather valve 2 suction ports 2.3 and air outlet 2.4, on main line 2.8, establish one-way valve 2.7, the suction port 2.3 of pressure-limit valve 2.1 is connected on the main line 2.8 between one-way valve 2.7 and air outlet 2.4.The air outlet of pressure-limit valve 2.1 is connected with the control mouth of feedback port 2.5 and outlet valve 2.2 respectively.Wherein pressure-limit valve 2.1 is two position three way directional control valve, and outlet valve 2.2 is bi-bit bi-pass selector valve.As shown in Figure 4, the utility model also comprises electrokinetic cell 8, the output terminal of electrokinetic cell 8 is connected with J8 pin with the J7 of main control chip in inverter 10, to inverter 4 input dc powers, in inverter, the J1 of main control chip 10, J3, J4 pin are connected with electric compressor 1, for the threephase AC after transforming is outputed to electric compressor 1.In inverter, the J12 pin of main control chip 10 is provided with ten ports, the output terminal of pressure transducer 6 is connected with the J12 pin of main control chip in inverter 10 by one of them port, for the system pipeline pressure signal receiving is sent in inverter 4, thereby control electric compressor 1 operating conditions by inverter 4.And the J12 pin of main control chip 10 is connected with the control mouth of bleed valve 7 by one of them port, inverter power supply 9 is main control chip 10 power supplies by J12 pin, and by main control chip 10, electricity is transported to each port, control their operation and break-make, wherein in inverter, the model of main control chip 10 is 18KPCB-1 simultaneously.
Working principle of the present utility model is: control program control bleed valve 7 is set in inverter 4, and after inverter 4 is stopped power supply, then unlatching a period of time closes automatically.When vehicle meets accident, inverter 4 stops as electric compressor 1 power supply, and now the switch connection a period of time in main control chip 10, bleed valve 7 is opened a period of time.Bleed valve 7 after opening is communicated with atmosphere, the air release in pipeline 5 is gone out, thereby reduce the barometric pressure in pipeline, and after a period of time, this switch cuts out automatically, bleed valve 7 power-off, thus stop exhaust.Owing to having avoided the too high back pressure phenomenon causing of the gas pressure in pipeline, automobile fix a breakdown after electric compressor 1 can normally open.
In addition, when normal vehicle operation, the normal air feed of electric compressor 1, air pressure in pipeline 5 reaches after specified air pressure, the air pressure at 2.4 places, feather valve 2 air outlet also reaches specified air pressure, now pressure-limit valve 2.1 reaches cracking pressure, the pressure signal of feather valve 2 air outlets 2.4 is delivered to the control mouth of feedback port 2.5 and outlet valve 2.2 by the output terminal of pressure-limit valve 2.1.Now the air pressure at outlet valve 2.2 places also reaches specified air pressure and opens, and the relief opening 2.6 of outlet valve 2.2 starts outside exhaust.And the pressure signal at feedback port 2.5 places will send pressure transducer 6 to, pressure transducer 6 is converted into digital signal by pressure signal from analogue signal, and by PIN6 pin by digital signal transfers to inverter 4.Inverter 4 can stop the power supply to electric compressor 1 after receiving signal, and electric compressor 1 shuts down.Along with the gas in pipeline 5 is discharged gradually, during pressure drop to the pressure-limit valve 2.1 of gas cuts out in pipeline air pressure, pressure-limit valve 2.1 is got back to the open to atmosphere state that connects, and the air pressure at feedback port 2.5 and outlet valve 2.2 places all declines and causes atmospheric gas pressure, is zero.Now outlet valve 2.2 will be closed, and relief opening 2.6 stops outside exhaust.And the pressure transducer 6 at feedback port 2.5 places also can cut out, inverter 4 continues by powering to electric compressor 1, and electric compressor 1 entry into service continues inflation in pipeline.And so forth, thus reach the object of energy saving.
The above; be only embodiment of the present utility model, it should be pointed out that any those of ordinary skill in the art are in the disclosed technical scope of the utility model; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.
Claims (7)
1. a vehicle mounted electric air compressor back pressure uninstalling system, comprise electric compressor, inverter, feather valve and gas receiver, described inverter output end is connected with electric compressor, described electric compressor output terminal is connected with feather valve suction port by pipeline, described feather valve air outlet is connected with gas receiver by pipeline, it is characterized in that: between described electric compressor and feather valve, by pipeline, be connected with bleed valve, described bleed valve is electrically connected to inverter.
2. a kind of vehicle mounted electric air compressor back pressure uninstalling system as claimed in claim 1, is characterized in that: described feather valve is provided with feedback port, and described feedback port place is provided with pressure transducer, and the output terminal of described pressure transducer is electrically connected to inverter.
3. a kind of vehicle mounted electric air compressor back pressure uninstalling system as claimed in claim 1 or 2, it is characterized in that: described feather valve comprises outlet valve, pressure-limit valve and the main line between feather valve suction port and air outlet, described main line is provided with one-way valve, the suction port of described pressure-limit valve is connected on the main line between one-way valve and air outlet, and the air outlet of described pressure-limit valve is connected with the control mouth of feedback port and outlet valve respectively.
4. a kind of vehicle mounted electric air compressor back pressure uninstalling system as claimed in claim 2, it is characterized in that: the output terminal of described pressure transducer is connected with the J12 pin of main control chip in inverter, in described inverter, the J12 pin of main control chip and the control mouth of bleed valve are connected.
5. a kind of vehicle mounted electric air compressor back pressure uninstalling system as described in claim 1 or 4, it is characterized in that: also comprise electrokinetic cell, the output terminal of described electrokinetic cell is connected with J8 pin with the J7 of main control chip in inverter, and in described inverter, main control chip is connected with electric compressor for J1, J3, the J4 pin of electric power output.
6. a kind of vehicle mounted electric air compressor back pressure uninstalling system as claimed in claim 3, is characterized in that: described pressure-limit valve is two position three way directional control valve.
7. a kind of vehicle mounted electric air compressor back pressure uninstalling system as claimed in claim 3, is characterized in that: described outlet valve is bi-bit bi-pass selector valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420267853.7U CN203939681U (en) | 2014-05-23 | 2014-05-23 | Vehicle mounted electric air compressor back pressure uninstalling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420267853.7U CN203939681U (en) | 2014-05-23 | 2014-05-23 | Vehicle mounted electric air compressor back pressure uninstalling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939681U true CN203939681U (en) | 2014-11-12 |
Family
ID=51858997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420267853.7U Expired - Lifetime CN203939681U (en) | 2014-05-23 | 2014-05-23 | Vehicle mounted electric air compressor back pressure uninstalling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939681U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723632A (en) * | 2017-10-31 | 2019-05-07 | 上海申龙客车有限公司 | Air compressor machine control protective unit and method in pure electric coach based on ASR valve |
-
2014
- 2014-05-23 CN CN201420267853.7U patent/CN203939681U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723632A (en) * | 2017-10-31 | 2019-05-07 | 上海申龙客车有限公司 | Air compressor machine control protective unit and method in pure electric coach based on ASR valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104842985A (en) | Air pressure brake air-supplying control device and light bus | |
| CN204506572U (en) | A kind of railcar accessory feed expansion feed circuit | |
| CN201810980U (en) | Multi-path air supply device of air compressor | |
| CN202645960U (en) | Device for controlling air compressor | |
| CN203939681U (en) | Vehicle mounted electric air compressor back pressure uninstalling system | |
| CN106195638B (en) | Shop air is pressurized voltage-stabilizing system | |
| CN107914696A (en) | Air compressor machine control method | |
| CN201486829U (en) | Electric vacuum pump controller for assisting power and braking electric vehicle | |
| CN203594974U (en) | Pressure stabilizing and reclaiming device for high-pressure nitrogen | |
| CN203257641U (en) | Air compressor parallel system | |
| CN204687856U (en) | A kind of highly reliable electronlmobil electric system without low tension battery | |
| CN203958125U (en) | The pneumatic control system of automobile regenerative brake | |
| CN204458058U (en) | A kind of automatically controlled blanket of mechanical type diesel engine | |
| CN204527181U (en) | Compression air brake air supply controller and light bus | |
| CN202727995U (en) | Electric automobile power output system with high-voltage quick break switch | |
| CN205595808U (en) | Elevator auxiliary system | |
| CN206338179U (en) | A kind of air compressor machine starts control system | |
| CN202593498U (en) | Air brake air-supply device | |
| CN208814649U (en) | A kind of automatic cut-off alarm of quick action emergency valve | |
| CN208411743U (en) | A kind of auxiliary braking control device for magnetic-levitation train | |
| CN201756723U (en) | Automatic cool water constant-pressure exhaust device | |
| CN202888951U (en) | Emergency power supply device reconstructed through frequency converter | |
| CN202690450U (en) | Frequency conversion starting-based screw air compressor starting system | |
| CN207397027U (en) | A kind of Over Current Protection System of device for producing hydrogen external equipment | |
| CN102700546A (en) | Air supply device for air brake |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141112 |