CN205632463U - Adopt electronic braking air compressor machine system of improved generation air -vent valve - Google Patents

Adopt electronic braking air compressor machine system of improved generation air -vent valve Download PDF

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Publication number
CN205632463U
CN205632463U CN201620409147.0U CN201620409147U CN205632463U CN 205632463 U CN205632463 U CN 205632463U CN 201620409147 U CN201620409147 U CN 201620409147U CN 205632463 U CN205632463 U CN 205632463U
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air compressor
valve
chamber
pressure regulator
regulator valve
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CN201620409147.0U
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仇斌
陈全世
田光宇
黄勇
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Tsinghua University
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Tsinghua University
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Abstract

The utility model discloses an adopt electronic braking air compressor machine system of improved generation air -vent valve who belongs to the electronic braking air compressor machine control technique scope of electric motor car. A, B, C, D, E, F chamber are separated into by each part in improved generation air -vent valve valve body inside in this electronic braking air compressor machine system, through process out a control pore of connecting piston upper portion pressure chamber inside the improved generation air -vent valve, the pneumatic control signal in this pore divide into two the tunnel: be used for the driving pressure switch all the way, pressure switch's break -make can be used for controlling opening of electronic braking air compressor machine and stop, another way is used for the sweeping that blows who controls the desicator to do, the pressure chamber on piston upper portion in the air -vent valve is all taken from to above -mentioned pneumatic control signal, and the direct pump gas with the air -vent valve of the pressure size of this pressure chamber corresponds respectively with the off -load action, thus follow the principle ensured the air compressor machine open stop, synchronism that air -vent valve off -load and desicator blow the sweeping work. Both practice thrift power consumption, effectively guaranteed the working property of desicator again.

Description

A kind of electric braking air compressor system using modified model pressure regulator valve
Technical field
This utility model belongs to the air compressor machine of electric motor car and controls technical scope, uses modified model particularly to one The electric braking air compressor system of pressure regulator valve.
Background technology
The brake air compressor using the traditional combustion engine automobile of air-pressure brake mode is generally all driven by internal combustion engine, When the pressure of car load gas receiver reaches highest setting value, owing to internal combustion engine is because driving needs not shut down, so By the relief arrangement in pressure regulator valve, air compressor machine output pipe connection air can only be unloaded, and brake pneumatics Machine is still directed in exsiccator with idle running, the compressed air meanwhile regenerated in gas receiver by internal combustion engine Carry out blowback to activate activity of water absorption material therein, again inflate for next time ready.
And on the pure electric commercial vehicle using air-pressure brake mode and extended-range commercial car, brake air compressor changes After being driven by stand-by motor so that the driving motor of brake air compressor decouples with car load drive system, thus can To use start stop mode that electric braking air compressor is controlled.That is when gas receiver pressure is less than the highest During setting value, electric braking air compressor continuous firing, to gas receiver pump gas, once gas receiver pressure reaches the highest During setting value, the exhaust pition of pressure regulator valve moves down the air vent opening pressure regulator valve, and then the air vent of exsiccator is also Opening, at this moment the compressed air in regeneration gas receiver is directed in exsiccator carry out blowback to activate suction therein Water active material, meanwhile electric braking air compressor is shut down;Close when gas receiver pressure drops to returning of pressure regulator valve During pressure, pressure regulator valve and the exhaust close of exsiccator, electric braking air compressor restarts recovery pump gas process.
But the electric braking air compressor of the most a lot of pure electric commercial vehicles and extended-range commercial car is in design Time often use pressure transducer or pressure switch be installed on gas receiver, utilize pressure transducer or pressure switch Signal realize the on off control of air compressor machine, due to pressure transducer or the pressure control point of pressure switch and tune The pressure unloading control point of pressure valve is the most inconsistent, thus easily causes the start and stop of air compressor machine and pressure regulator valve off-load is moved Make asynchronous, cause following two adverse consequences: one is that pressure regulator valve produces after off-load action that (exsiccator is anti-simultaneously Blow activation) but electric braking air compressor do not shut down, cause electric braking air compressor idle running consume electric energy in vain;Two It is that electric braking air compressor is shut down but pressure regulator valve is failure to actuate (exsiccator also not blowback activation), through after a while After, scrap owing to exsiccator activity absorbent material can not get activation, also result in brake line and valve member In infiltrate large quantity of moisture and greasy dirt, reduce reliability and the life-span of brakes.
Utility model content
The purpose of this utility model is for electronic brake empty in current pure electric commercial vehicle and extended-range commercial car The on off control of press, pressure regulator valve off-load and the exsiccator nonsynchronous problem of purging action, propose one employing and change Enter the electric braking air compressor system of type pressure regulator valve, it is characterised in that use the electrodynamic braking of modified model pressure regulator valve Air compressor system by electric braking air compressor, inverter, exsiccator, regeneration gas receiver, modified model pressure regulator valve, Four-loop protection valve and gas receiver composition;Concrete structure is: air compressor driving motor 1 is combined into air compressor machine 2 Electric braking air compressor, air compressor machine 2 is connected on exsiccator 4 through appendix 3, and exsiccator 4 passes through exsiccator Escape pipe 5 connects with controlling the trachea 6 air inlet 22 and control gas circuit port 20 respectively with modified model pressure regulator valve 7 Connect;Exsiccator 4 bottom is connected with regeneration gas receiver 14 by regeneration trachea 15;Modified model pressure regulator valve 7 passes through Pressure regulator valve escape pipe 8, four-loop protection valve 9 and four loop air inlet pipe 10 are connected with four gas receivers 11;? Installing pressure switch 12 near the control gas circuit port 20 of modified model pressure regulator valve 7, its outfan passes through control line 13 are connected on the control port 16 of inverter 17;Inverter 17 is powered by HVDC supply port 18, It is that three-phase alternating current supplies air compressor driving motor 1 through three-phase output lead 19 by DC inverter.
The structure of described modified model pressure regulator valve is to process one inside pressure regulator valve to connect upper piston area pressure chamber Control duct formed modified model pressure regulator valve;Concrete structure in valve body by each parts be separated into A, B, C, D, F chamber;Fixing trapezoidal cylinder at body top, form E chamber, screw press 27 is fixed on trapezoidal cylinder top, ladder Rubber cup 28 is fixed in shape cylinder and valve body junction, installs tappet 26 and bypath valve in rubber cup 28 medium pore 25;A chamber and E intracavity on rubber cup 28 both sides respectively use spring supporting unloading control valve 24 and screw press 27;It is fixed in the valve seat orifice of unloading control valve 24 at A intracavity bypath valve 25;Off-load duct 23 will A chamber connects with B chamber;Air inlet 22 is set from top to bottom on the valve body left side, controls gas circuit port 20 and install Pressure switch 12;Connected pore channel 21 will control gas circuit port 20 and connect with B chamber with pressure switch 12;At valve Installing check valve 30 in gas outlet 31 on the right of body, A chamber is connected by inclined hole 29 with gas outlet 31;Filter element 32 It is arranged on the junction in duct on the left of D chamber and check valve;Exhaustor 36 is arranged on bottom, F chamber, at F intracavity, Piston 34 by spring supporting on exhaustor 36 mouthfuls, piston 34 upper end and B cavity wall slipper seal, piston Drain tap 35 is fixed in 34 lower ends, and drain tap 35 seals with F chamber upper port;By-pass duct 33 connects E Chamber and F chamber.
Described pressure switch 12 is broken type for low pass height.
The beneficial effects of the utility model are by processing inside modified model pressure regulator valve on a connection piston The control duct of portion's pressure chamber, changes and controls gas circuit structure, make pressure switch even control the pressure size of gas circuit Directly strictly associate with pump gas and the unloading condition of modified model pressure regulator valve, from principle, just solve air compressor machine The stationary problem of the actions such as start and stop, pressure regulator valve action and exsiccator blowback off-load, thus the conventional electric system of overcoming The deficiency of dynamic air compressor machine control method, achieves the start and stop of electric braking air compressor, pressure regulator valve off-load from principle With the synchronization of the action such as exsiccator purging, there are simple in construction, easily enforcement, low cost, dependable performance etc. excellent Point.
Accompanying drawing explanation
Fig. 1 is electric braking air compressor system structure and the control principle schematic diagram using modified model pressure regulator valve, figure Middle filled arrows is pump gaseity;Hollow arrow is unloading condition.
Fig. 2 is modified model pressure regulator valve structural representation, and in figure, filled arrows is pump gaseity.
Fig. 3 is modified model pressure regulator valve structural representation, and figure hollow core arrow is unloading condition;Dotted arrow represents Move up.
Detailed description of the invention
The utility model proposes a kind of electric braking air compressor system using modified model pressure regulator valve, below in conjunction with Accompanying drawing is explained.
Fig. 1 show composition and the control principle signal of the electric braking air compressor system using modified model pressure regulator valve Figure, in figure, filled arrows is pump gaseity;Hollow arrow is unloading condition.
The electric braking air compressor system of the modified model pressure regulator valve shown in figure is by electric braking air compressor, inversion Device, exsiccator, regeneration gas receiver, modified model pressure regulator valve, four-loop protection valve and gas receiver composition.Concrete knot Structure is: air compressor driving motor 1 and air compressor machine 2 are combined into electric braking air compressor, and air compressor machine 2 is through appendix 3 are connected on exsiccator 4, exsiccator 4 by exsiccator escape pipe 5 and control trachea 6 respectively with modified model Air inlet 22 and the control gas circuit port 20 of pressure regulator valve 7 connect;Exsiccator 4 bottom is by regeneration trachea 15 It is connected with regeneration gas receiver 14;Modified model pressure regulator valve 7 is by pressure regulator valve escape pipe 8, four-loop protection valve 9 It is connected with four gas receivers 11 with trachea 10;Pacify near the control gas circuit port 20 of modified model pressure regulator valve 7 Dress pressure switch 12 (low pass height break type), its outfan is connected to the control of inverter 17 by control line 13 On port 16;Inverter 17 is powered by HVDC supply port 18, is three-phase alternating current by DC inverter Electricity supplies air compressor driving motor 1 through three-phase output lead 19.
Fig. 2, Fig. 3 are modified model pressure regulator valve structural representation, and in figure, filled arrows is pump gaseity;Hollow arrow Head is unloading condition;Dotted arrow represents and moves up.The structure of modified model pressure regulator valve shown in figure is in pressure regulation Process a control duct connecting upper piston area pressure chamber inside valve and form modified model pressure regulator valve;Concrete structure For being separated into A, B, C, D, F chamber by each parts in valve body;Fix trapezoidal cylinder at body top, form E Chamber, trapezoidal cylinder top is fixed screw press 27, trapezoidal cylinder and valve body junction and is fixed rubber cup 28, rubber cup Tappet 26 and bypath valve 25 are installed in 28 medium pores;A chamber and E intracavity on rubber cup 28 both sides are respectively used Spring supporting unloading control valve 24 and screw press 27;It is fixed on off-load control at A intracavity bypath valve 25 In the valve seat orifice of valve 24 processed;A chamber is connected by off-load duct 23 with B chamber;Set from top to bottom on the valve body left side Put air inlet 22, control gas circuit port 20 and pressure switch 12 is installed;Connected pore channel 21 will control gas circuit end Mouth 20 connects with B chamber with pressure switch 12;Check valve 30 is installed, tiltedly in the gas outlet 31 on the right of valve body A chamber is connected by hole 29 with gas outlet 31;Filter element 32 is arranged on the junction in duct on the left of D chamber and check valve; Exhaustor 36 is arranged on bottom, F chamber, at F intracavity, piston 34 by spring supporting on exhaustor 36 mouthfuls, Piston 34 upper end and B cavity wall slipper seal, drain tap 35, drain tap 35 are fixed in piston 34 lower end Seal with F chamber upper port;By-pass duct 33 connects E chamber and F chamber.
The on off control principle of the electric braking air compressor system of this employing modified model pressure regulator valve is by improving Processing a control duct connecting upper piston area pressure chamber inside type pressure regulator valve, the air pressure in this duct controls Signal is divided into two-way, and a road is used for driving pressure switch, and the signal of this pressure switch is used for controlling inverter Start and stop, the start and stop of inverter the most just control the start and stop of electric braking air compressor;Another road is opened for control Exhaust pition in exsiccator, thus utilize compressed air in regeneration gas receiver to realize exsiccator purging action; This air pressure control signal is all taken from the pressure chamber of upper piston area in pressure regulator valve, and the pressure size of this pressure chamber Directly distinguish the most corresponding with the pump gas of pressure regulator valve and off-load action again, therefore ensure that from principle air compressor machine start and stop, Pressure regulator valve off-load and the synchronicity of exsiccator purging action.
Described electric braking air compressor on off control has pump gas and off-load two states;Concrete control process is warp Cross the dry compressed air after exsiccator 4 removes water and enter modified model by exsiccator escape pipe 5 from air inlet 22 C chamber in pressure regulator valve 7, D chamber, export from gas outlet 31 after filtration core 32 and check valve 30;Simultaneously A part of compressed air arrives A chamber through inclined hole 29;When A cavity pressure is less than design load 810 ± 20kPa, (as Shown in Fig. 2) unloading control valve 24 is closed, and tappet 26 is in by jack-up, bypath valve 25 Opening, off-load duct 23, bypath valve 25, E chamber, by-pass duct 33, F chamber are passed through with big in B chamber Gas connects, so now B chamber is normal pressure (low pressure) state;B chamber is also by connected pore channel 21 and pressure Switch 12, controlling gas circuit port 20 and connect, therefore pressure switch 12 (low pass height break type) is on shape State, this conducting state can control inverter 17 and work, so that electric braking air compressor is in pump gas work shape State, so now modified model pressure regulator valve is in pump gaseity;When A cavity pressure reaches design load 810 ± 20kPa Time, the rubber cup 28 on top, A chamber overcomes shifting on the precompression of spring, becomes arc (empty in as shown in Figure 3 Line arrow indicates), unloading control valve 24 moves and opens, tappet 26 moves down, and bypath valve 25 is in pass Closed state, B chamber is connected with A chamber by connected pore channel 23, so now B chamber is high pressure conditions, B chamber is pressed Trying hard to recommend dynamic piston 34 to move down, drain tap 35 is opened, C chamber, the D chamber mesohigh air air bleeding valve through opening Door 35, F chamber and exhaustor 36 enter in air, and now modified model pressure regulator valve is in unloading condition;B chamber Compressed air enters into pressure switch 12 by connected pore channel 21 and controls gas circuit port 20 etc., therefore presses Power switch 12 (low pass height break type) is off, and then makes inverter 17 quit work, air compressor machine 2 Stop pump gas, and by control gas circuit port 20, a part of compressed air is imported exsiccator 4 simultaneously, make to do Dry device produces off-load and purging action.At 31 mouthfuls, pressure regulator valve gas outlet, pressure is down to again pressure regulator valve and is returned pass pressure Time, rubber cup 28 return, unloading control valve 24 moves down closedown, tappet 26 moves, bypath valve 25 It is in opening, B chamber passing hole channel 23, bypath valve 25, E chamber, duct 33, F chamber etc. and air Connection, so now B cavity pressure reverts to again atmospheric pressure state, pressure switch 12 is in the conduction state, piston 34 above move under the action of the spring, and drain tap 35 is closed, and electric braking air compressor starts the circulation of pump gas again.
So pressure switch 12 and control the pressure size at gas circuit port 20 the most directly and the pump gas of pressure regulator valve and Unloading condition strictly associates, and thus solves air compressor machine start and stop, pressure regulator valve action from principle and is dried The stationary problem of the actions such as device blowback off-load.

Claims (3)

1. the electric braking air compressor system using modified model pressure regulator valve; it is characterized in that, the electric braking air compressor system of described modified model pressure regulator valve is made up of electric braking air compressor, inverter, exsiccator, regeneration gas receiver, modified model pressure regulator valve, four-loop protection valve and gas receiver;Concrete structure is: air compressor driving motor (1) and air compressor machine (2) are combined into electric braking air compressor, air compressor machine (2) is connected on exsiccator (4) through air pressure appendix (3), and exsiccator (4) is connected with air inlet (22) and control gas circuit port (20) of modified model pressure regulator valve (7) respectively by exsiccator escape pipe (5) and control trachea (6);Exsiccator (4) bottom is connected with regeneration gas receiver (14) by regeneration trachea (15);Modified model pressure regulator valve (7) is connected with four gas receivers (11) by pressure regulator valve escape pipe (8), four-loop protection valve (9) and trachea (10);Installing pressure switch (12) near control gas circuit port (20) of modified model pressure regulator valve (7), its outfan is connected on the control port (16) of inverter (17) by control line (13);Inverter (17) is powered by HVDC supply port (18), is that three-phase alternating current is through three-phase output lead (19) supply air compressor driving motor (1) by DC inverter.
Use the electric braking air compressor system of modified model pressure regulator valve the most according to claim 1, it is characterised in that the structure of described modified model pressure regulator valve is to process a control duct connecting upper piston area pressure chamber inside pressure regulator valve to form modified model pressure regulator valve;Concrete structure is for be separated into A, B, C, D, F chamber by each parts in valve body;Fixing trapezoidal cylinder at body top, form E chamber, screw press (27) is fixed on trapezoidal cylinder top, and rubber cup (28) is fixed in trapezoidal cylinder and valve body junction, installs tappet (26) and bypath valve (25) in rubber cup (28) medium pore;A chamber and E intracavity on rubber cup (28) both sides respectively use spring supporting unloading control valve (24) and screw press (27);It is fixed in the valve seat orifice of unloading control valve (24) at A intracavity bypath valve (25);A chamber is connected by off-load duct (23) with B chamber;Air inlet (22) is set from top to bottom on the valve body left side, controls gas circuit port (20) and pressure switch (12) is installed;Connected pore channel (21) will control gas circuit port (20) and connect with B chamber with pressure switch (12);Installing check valve (30) in gas outlet (31) on the right of valve body, A chamber is connected by inclined hole (29) with gas outlet (31);Filter element (32) is arranged on the junction in duct on the left of D chamber and check valve;Exhaustor (36) is arranged on bottom, F chamber, at F intracavity, piston (34) by spring supporting on exhaustor (36) mouth, piston (34) upper end and B cavity wall slipper seal, drain tap (35) is fixed in piston (34) lower end, and drain tap (35) seals with F chamber upper port;By-pass duct (33) connection E chamber and F chamber.
Use the electric braking air compressor system of modified model pressure regulator valve the most according to claim 1, it is characterised in that described pressure switch (12) is that low pass height breaks type.
CN201620409147.0U 2016-05-06 2016-05-06 Adopt electronic braking air compressor machine system of improved generation air -vent valve Active CN205632463U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105857284A (en) * 2016-05-06 2016-08-17 清华大学 Method for controlling start and stop of electric brake air compressor system through improved pressure regulating valve
CN107901898A (en) * 2017-11-07 2018-04-13 中国第汽车股份有限公司 Air booster assembly based on feedback dish structure
CN113460017A (en) * 2021-06-18 2021-10-01 中联重科股份有限公司 Air dryer, air brake system and engineering vehicle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105857284A (en) * 2016-05-06 2016-08-17 清华大学 Method for controlling start and stop of electric brake air compressor system through improved pressure regulating valve
CN107901898A (en) * 2017-11-07 2018-04-13 中国第汽车股份有限公司 Air booster assembly based on feedback dish structure
CN107901898B (en) * 2017-11-07 2024-06-04 中国第一汽车股份有限公司 Pneumatic booster assembly based on feedback disc structure
CN113460017A (en) * 2021-06-18 2021-10-01 中联重科股份有限公司 Air dryer, air brake system and engineering vehicle
CN113460017B (en) * 2021-06-18 2022-02-15 中联重科股份有限公司 Air dryer, air brake system and engineering vehicle

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