CN110107502A - Electronic coolant compressor - Google Patents

Abstract

The present invention relates to a kind of electronic coolant compressors (12), it has the compressor housing (50) with compressor compartment (52), it is disposed in compressor compartment compressor (54), compressor is passed through in the high pressure compartment (56) of compressor housing (50).High pressure compartment (56) is lined with inserts (60).The invention further relates to a kind of motor vehicles (2) with refrigerant circuit (8).

Description

Electronic coolant compressor

Technical field

The present invention relates to a kind of electronic coolant compressor of motor vehicle and a kind of motor vehicles with refrigerant circuit.

Background technique

Motor vehicle usually has air-conditioning system, and the temperature adjustment to the inner space of motor vehicle is realized by the air-conditioning system. In the motor vehicle by motor drive, also required accumulator, such as high tension battery are cooled down.Air-conditioning system With refrigerant circuit comprising coolant compressor connects in the condenser in the refrigerant compressor downstream and by fluid skill Art connects the evaporator in the condenser downstream.It is connected to other heat exchanger in the evaporator downstream by fluid technique, this is another Outer heat exchanger is thermally contacted with the air blower pipeline for the inner space for leading to motor vehicle, or possible with high pressure accumulator Energy unit thermo-contact.Refrigerant circuit is filled with refrigerant, such as R134a, R1234yf or CO2.

In operation, the pressure of refrigerant is improved by coolant compressor, this results in the temperature of refrigerant to increase. The refrigerant is directed towards condenser, and condenser is thermally contacted with the ambient enviroment of motor vehicle.Here, the temperature of refrigerant reduces, Refrigerant is lowered to initial pressure again in the evaporator in downstream, therefore is further reduced the temperature of refrigerant.Under In the heat exchanger of trip, thermal energy is transferred to refrigerant from the component thermally contacted with heat exchanger, this causes component cooled, and Refrigerant is heated.The refrigerant being heated is conveyed to coolant compressor again, with closed refrigerant circuit.

In order to be pressurized refrigerant, usually consider to use compressor head, by the compressor head in coolant compressor By refrigerant compression and make its movement.Here, being compressed to refrigerant with for example giving pulsed, then in a pulsed fashion will Refrigerant imports in the high pressure compartment of coolant compressor.Due to it is intermittent operation and due to the movement of refrigerant and due to The movement of the possible mechanical part of coolant compressor and have noise generation, can be in the inner space of motor vehicle by conduct Interference is perceived.Therefore, especially the resonance frequency of the sound of compressor head and scattering properties are mutually assisted with respective vehicle It adjusts.Here, compressor head must also meet the predetermined regulation in the specific structure for being assembled in motor vehicle.Thus needs are Every kind of vehicle matches the coolant compressor attached respectively.Therefore, it on the one hand needs to be developed for different vehicles respectively. Here, different tools or the like must also be prepared during fabrication, which further improves manufacturing costs.On the other hand, example It is such as repaired in workshop or when manufacturing motor vehicle, it is necessary to it is the different coolant compressor of different vehicle preparations, This will lead to cost raising again.

Summary of the invention

The task of the present invention is the particularly suitable electronic coolant compressor for illustrating a kind of motor vehicle and it is a kind of especially Applicable motor vehicle, wherein especically reduce manufacturing cost and/or simplify maintenance, wherein suitably improve acoustics Effect.

According to the present invention, which is solved about electronic coolant compressor by the feature of claim 1, and is closed It is solved in motor vehicle by the feature of claim 10.It is advantageously improved scheme and design scheme is that respective appurtenance is wanted The theme asked.

Electronic coolant compressor is the component part of motor vehicle.Preferably, electronic coolant compressor and motor vehicle Onboard power system electrical contact, and/or with it is a few volt to 1000V voltage run, especially with 12V, 24V, 48V, 288V, The voltage of 450V, 650V or 830V are run.By electronic coolant compressor, refrigerant is pressurized in operation.Refrigerant example For example chemical refrigerant, such as R134a or R1234yf.As an alternative, refrigerant CO2.Preferably, coolant compressor is by such as This place design, that is, enable and respective refrigerant is pressurized by coolant compressor, wherein such as realization 5bar is extremely The boost in pressure of 20bar.For example, electronic coolant compressor by signalling technique and bus system, especially LIN bus or CAN bus coupling.

The component part of coolant compressor especially refrigerant circuit (refrigerating circuit), the coolant compressor for example with Air conditioning is carried out in the inner space to motor vehicle or the accumulator of such as high tension battery is cooled down.Refrigerant returns Road also especially includes (air-conditioning) condenser and evaporator.Condenser is connect by fluid technique in electronic coolant compressor and evaporation Between device.Preferably, refrigerant circuit includes other heat exchanger, be connected on evaporator and electronic coolant compressor it Between, and its other component preferably with motor vehicle, the air blower pipeline or accumulator of such as air-conditioning system, such as high-voltage energy-storage Device thermo-contact.Refrigerant circuit is especially filled with refrigerant, such as chemical refrigerant, such as R134a, R1234yf or CO2.

By electronic coolant compressor, improve the pressure of refrigerant in operation, then by the refrigerant guide to Condenser, condenser are preferably thermally contacted with the ambient enviroment of motor vehicle.Expediently, keeping the temperature of refrigerant equal by condenser It weighs to ambient temperature or at least reduces the temperature of refrigerant.Using the evaporator in downstream, it is depressured refrigerant, therefore It is further reduced the temperature of refrigerant.In the other heat exchanger in downstream, by thermal energy from the heat exchanger other with this The component of thermo-contact is transferred to refrigerant, this causes component to be cooled and makes refrigerant heat.Preferably, the refrigeration that will be heated Agent is conveyed to coolant compressor again, with closed refrigerant circuit.

Electronic coolant compressor has the compressor housing with compressor compartment.Pressure is disposed in compressor compartment interior Contracting machine, the compressor are, for example, scroll compressor.For example, entire compressor is arranged in compressor compartment interior, or only A part (such as compressor head) of compressor is disposed therein.Here, in operation, refrigerant is guided through compressor And due at least one of compressor or compressor component part relative to the movement of the other component part of compressor and by Pressurization.Here, forming noise due to the movement, that is, in refrigerant Inner Constitution sound wave.

Compressor is passed through in the high pressure compartment of compressor housing.In particular, the compressor outlet of compressor be passed through high pressure every In room.Therefore, compressor housing tool is there are two compartment, they are for example separated from each other and close particularly by fluid technique or pressure Envelope mode is sealed against one another.As an alternative, transition is wherein each other for the two compartments.Here, the high-pressure side of compressor passes through fluid technique It couples with high pressure compartment, and is especially transitioned into the high pressure compartment in the case where not other component.As an alternative, example Valve, especially check-valves are such as disposed between compressor and high pressure compartment.In operation, therefore the refrigerant through being pressurized is in The other component part of refrigerant circuit, especially pipeline in high pressure compartment and are especially discharged to from the high pressure compartment In.

High pressure compartment is lined with inserts.In other words, electronic coolant compressor has the inserts for high pressure compartment.This is embedding Part is used herein to influence noise generation, and especially weakens at least one the specific frequency model for being formed by sound or sound It encloses.Expediently, therefore the inserts is matched with the specific operation power of specific vehicle or electronic coolant compressor.Change speech It, especially weakens specific sound component by inserts.Preferably, inserts does not have other function.

For example, being displaced the resonance frequency of electronic coolant compressor by inserts, to make resonance frequency especially It is displaced from the frequency of the oscillation of generated electronic coolant compressor when operating normally relatively far away from.In particular, by Inserts, the sound wave at least one specific frequency range provide impedance jump.In other words, inserts, which has, is different from compression case The impedance of body.Based on impedance jump, reduces sound wave and be imported into compressor housing.Expediently, the impedance of inserts is by so Selection, that is, so that sound wave, the major part of especially at least one specific frequency range is absorbed or reflected.In short, preventing Or at least reduce sound wave and be imported into compressor housing, to reduce compressor housing to external acoustic radiating.Therefore, Acoustic pressure is improved.

Based on the selection of inserts parameter, noise dampening efficiency can be made to be adapted to the specific requirement of electronic coolant compressor.Especially Its ground, at least one section of the wall of the thickness (i.e. especially wall thickness) or inserts of inserts are adapted to weaken and/or reduce at least The sound wave of one specific frequency range.Preferably, the surface (such as in face of surface of compressor or compressor housing) of inserts With specific structure, which is used to weaken the specific sound wave of especially specific frequency range.

Based on inserts, improve the acoustic efficiency of electronic coolant compressor (eKMV), wherein can make inserts with it is specific Vehicle and/or set application field match.Herein, it is only necessary to inserts be matched, without changing electronic refrigeration The respective component part of agent compressor.Therefore, manufacturing cost is reduced, this is because only inserts just must be with respective vehicle Match.In addition, maintenance is also improved, this is because needing the identical electronic refrigerant pressure of respectively different vehicle preparations Contracting machine, and take the circumstances into consideration the inserts that preparation is suitable for respective application field, this reduces warehouse costs.Due to inserts, also mention Supplied it is heat-insulated, to reduce the refrigerant heated due to pressurization in operation and overheat compressor housing.

Vehicle espespecially motor vehicle specific products series, wherein each motor vehicle for example has no area in certain outfit characteristic aspects Not, and especially in terms of other (main) component part and indistinction.For example, whole motor vehicles are only associated with specific machine The annual production year of motor-car product line or multiple (associated) working years.

Expediently, the cup-shaped construction of inserts, wherein rim of a cup for example by compressor or is arranged in the plate between it and seals It closes, which preferably has the opening for compressor outlet.Therefore, the assembly of inserts is simplified.Preferably, high pressure compartment Cup-shaped design.Therefore, the control to the pressure improved in high pressure compartment is simplified.Expediently, inserts is imitated The profile of high pressure compartment, wherein the shape of inserts is for example to reduce compared to the shape of high pressure compartment.Expediently, in operation, By inserts, refrigerant and the inner wall of high pressure compartment, namely high pressure compartment is prevented to contact.As an alternative or particularly preferably with This in combination, inserts integrally designs.Therefore, the assembly and manufacture of inserts are simplified.Expediently, cup-shaped inserts is embedding Enter into the high pressure compartment of cup-shaped construction, to only slightly extend manufacturing time.For example, high pressure compartment and inserts have phase Mutual corresponding feature, to make inserts that can only be assembled in unique positioning relative to compressor housing.

In particular, compressor housing is made of aluminium, that is, pure aluminum or aluminum alloy.Expediently, compressor housing is die casting Part.Thus, it is also possible to realize the control to relatively high pressure by compressor housing, this improves electronic refrigerant compression The efficiency and cooling capacity of machine.As an alternative or particularly preferably in combination with this, inserts is made of plastics.In this manner, reducing Manufacturing cost.In particular, inserts is made with injection molding method.

Expediently, high pressure compartment is equipped with inserts.For example, the inserts substantially comprehensively sticks on high pressure compartment.It is suitable for Ground, between high pressure compartment and inserts, that is, between the inner wall and inserts of compressor housing in the area, forming material lock (the stoffschl ü ssig) connection closed or at least partly sealed connection of material.Inserts be, for example, suitably in the pasty state or paint The swabbing of class.As an alternative, inserts is coating.Therefore, inserts is coated to high pressure compartment in order to manufacture.Therefore, it avoids embedding Part and high pressure compartment are detached from.But it is particularly preferred that forming gap between inserts and compressor housing, and inserts is especially Independently of the part of compressor housing.Therefore, displacement is simplified.It also avoids or at least reduces and led by the oscillation that inserts absorbs Enter in compressor housing.

In particular, inserts is supported on compressor housing, that is, the inner wall of especially high pressure compartment.For this purpose, inserts Suitably there are multiple flanks, it is suitable for 2 to 10 flanks, 3 to 8 flanks, and such as equal to 4,5 or 6 flanks.Rib Portion is preferably formed on the other component part of inserts.In the assembled condition, flank support is on compressor housing, also It is and the direct Mechanical Contact of the inner wall of high pressure compartment.Expediently, flank forms the mere contact between inserts and compressor housing Portion.Therefore, these flanks form the portion that reclines of part of the inserts on compressor housing, transmit to reduce sound wave from inserts Onto compressor housing.In assembly, the insertion direction that flank is for example parallel to inserts extends.Expediently, flank be parallel to it is embedding The insertion direction of part and/or it is parallel to hollow cylinder axis, as long as inserts cup-shaped design and therefore with the hollow posts bodily form Section.Expediently, the axial direction (namely axially direction) that flank is parallel to electronic coolant compressor extends.Rib Portion especially has the thickness in gap, so that inserts be made especially to be embedded into compressor housing in the case where constituting clearance fit In.Therefore, it convenient for assembly, and avoids and relative motion occurs between inserts and compressor housing.

For example, the variable thickness in gap.Therefore, specific sound frequency can be influenced by inserts.But particularly preferably The thickness on ground, gap is substantial constant.Therefore assembly is simplified.Here, by inserts and thereafter existing gap especially also phase Specific impedance is provided to efficiently reducing specific frequency range, and/or by inserts and gap.

For example, high pressure compartment has outlet, refrigerant is discharged by the outlet.Preferably, here, inserts Including opening aligned with it.Therefore, refrigerant substantially unimpededly flows through opening and outlet, to avoid or at least reduce Vortex and the following the formation of noise.In particular, oil eliminator is passed through to export and pass through to be open to visit and be reached in high pressure compartment.? This, oil eliminator suitably sticks on inserts and compressor housing.Therefore, it is impossible to be formed between oil eliminator and inserts Access, this further improves sealing functions.Preferably, inserts only has opening in following region, and high pressure compartment is at these There are outlet or similar structures in region.Therefore, inserts has relatively high stability, this improves robustness and simplifies Assembly.

In particular, electronic coolant compressor has motor.Motor is suitably synchronous motor, such as brushless electric Motivation.Expediently, motor is brushless DC electric machine (BLDC).Expediently, electronic coolant compressor includes for electricity The electronic device that motivation is powered, such as inverter, for example including such as bridgt circuit of B4 circuit or B6 circuit.Preferably, electric Motivation includes multiple electric phases, such as two or three such phases.These mutually suitably interconnect with each other into star circuit or triangle Circuit, and inverters are powered in operation.Motor is disposed in motor shell, the motor shell preferably by Aluminium is made.Expediently, motor shell is die casting.Electronics control, especially inverter are preferably arranged in electronic refrigerant pressure In the electronic device compartment of contracting machine, which is for example docked with the horse with motor shell integral molding or at least Up on shell.

By motor, preferably driving compressor.For example, at least part of compressor or compressor is with anti-opposite turn It is fixed on the motor drive shaft of motor dynamicly.Compressor housing is preferably docked on motor shell, for example, especially by more A screw is fixed on the motor shell.Therefore, compressor housing is at least partly closed by motor shell, thus extremely Refrigerant is partially prevented to leak out by motor shell from compressor housing.Since compressor housing is docked with motor shell On body, relative compact is provided and firm electronic coolant compressor.Electronic coolant compressor is assembled in addition, simplifying Into motor vehicle, this is because electronic coolant compressor can be used as unique component to assemble.It is furthermore possible to be accomplished that, The motor selecting compressor head according to particular requirement and/or being arranged in motor shell.In other words, it realizes modular Electronic coolant compressor, this reduces manufacturing cost and/or simplifies storage.

For example, inserts has substantially smooth surface, this can simplify manufacture.But it is particularly preferred that inserts includes being used for Influence electronic coolant compressor acoustic impedance and/or inserts or entire electronic coolant compressor resonance frequency acoustics Element.As an alternative or in combinationly, the element is in particular for turning to sound wave.Acoustic element is, for example, arris, turning, rib Portion or other built-in protrusions, such as antelabium.In particular, acoustic element is only used for influencing the acoustic impedance of electronic coolant compressor Or other acoustic characteristics, without having other function.In other words, it realizes by acoustic element to electronic coolant compressor Acoustic characteristic coordination.Expediently, acoustic element is formed in the other components of inserts, and especially another with inserts Outer component part integrally shapes.Therefore manufacture is simplified.Based on acoustic element, electronic refrigerant pressure can be significantly affected The acoustic characteristic of contracting machine, wherein when matching acoustic element, it is not necessary to consider and also have no effect on electronic coolant compressor Other function.Therefore, coolant compressor and inserts are mutually coordinated with corresponding vehicle with making it possible relative ease.

Motor vehicle includes refrigerant circuit, has (air-conditioning) condenser and evaporator and electronic coolant compressor, Electronic coolant compressor has the compressor housing with compressor compartment, is disposed with compressor in compressor compartment interior, presses Contracting machine is passed through in the high pressure compartment of compressor housing.High pressure compartment is lined with inserts.

Condenser is connect between electronic coolant compressor and evaporator by fluid technique.Preferably, refrigerant circuit Including other heat exchanger, which is connect between evaporator and electronic coolant compressor, and this is another Other component of the outer heat exchanger preferably with motor vehicle thermally contacts, the air blower pipeline of such as air-conditioning system or accumulation of energy Device, such as high pressure accumulator.Refrigerant circuit is especially filled with refrigerant, such as chemical refrigerant, such as R134a, R1234yf Or CO2.

By coolant compressor, the pressure of refrigerant is improved in operation, then guides the refrigerant to condensation Device, condenser are preferably thermally contacted with the ambient enviroment of motor vehicle.Preferably, by condenser, make the temperature equalization of refrigerant To ambient temperature or at least reduce the temperature of refrigerant.

Using the evaporator in downstream, it is depressured refrigerant, therefore further reduces the temperature of refrigerant.In the another of downstream In outer heat exchanger, thermal energy is transferred to refrigerant from the component thermally contacted with the other heat exchanger, this causes to structure Part is cooling and makes refrigerant heat.Preferably, the refrigerant of heating is conveyed to coolant compressor again, to be closed refrigeration Agent circuit.

According to the present invention, it is equally applicable to motor vehicle in conjunction with the improvement project and advantage of the description of electronic coolant compressor, And vice versa.

Detailed description of the invention

The embodiment of the present invention is elaborated with reference to the accompanying drawing.Wherein:

Fig. 1 schematically shows the motor vehicle with electronic coolant compressor；

What Fig. 2 simplified schematic showed the electronic coolant compressor with compressor housing cuts open figure；

Fig. 3 three-dimensionally shows the compressor housing with high pressure compartment；

Fig. 4 three-dimensionally shows the inserts for high pressure compartment；And

Fig. 5 and Fig. 6 is respectively to cut open the inserts for illustrating and being arranged in high pressure compartment.

Each corresponding part is equipped with identical appended drawing reference in the drawings.

Specific embodiment

Schematically simplify the motor vehicle 2 for showing and having there are two front-wheel 4 and two rear-wheels 6 in Fig. 1.In wheel 4,6 At least two drive by the main drive not being shown specifically, such as internal combustion engine, motor or combinations thereof.Motor vehicle 2 wraps Refrigerant circuit 8 is included, is the component part of air-conditioning system.Refrigerant circuit 8 is filled with refrigerant 10, such as CO2, R1234yf or R134a.By electronic coolant compressor (eKMV) 12, refrigerant 10 is compressed and is conveyed to through fluid skill Art connects the condenser 14 in downstream, loads to condenser with ambient air, this causes the temperature of refrigerant 10 to decline.By The evaporator 16 in downstream reduces the pressure of refrigerant 10 and therefore reduces its temperature, and evaporator includes not being shown specifically in addition Heat exchanger, the air blower pipeline thermal coupling of the other heat exchanger and air-conditioning system.Air blower pipeline depends on user Cooling air is transported in the inner space of motor vehicle 2 by adjustment ground.

Electronic coolant compressor 12 passes through signal by the bus system 18 for being CAN bus system or Lin bus system Technology and motor vehicle control unit 20, such as car-mounted computer couple.By the relevant voltage for carrying such as 48V and by storage The onboard power system 22 that battery 24 is fed is powered to electronic coolant compressor 12.Onboard power system 22 further includes safety device 26, is borrowed It helps the safety device that can interrupt between battery 24 and coolant compressor 12 and passes through electric current.For this purpose, safety device 26 Such as there is load switch and/or protective switch.Safety device 26 by bus system 18 or by other signalling techniques with it is motor-driven Vehicle control unit 20 connects, to manipulate load switch or protective switch by motor vehicle control unit 20, and therefore can interrupt Pass through electric current.

Fig. 2 simplified schematic the motor 30 along coolant compressor 12 rotation axis (pivot center) 28 It cuts open in figure and shows (electronic) coolant compressor 12.Motor 30 is brushless direct current motor (BLDC) and has cylinder The rotor 32 of shape is surrounded by the stator 34 of the hollow posts bodily form to rotor circumference side.Rotor 32 is fixed in anti-relative rotation in phase To the bearing that the form that on the axis 36 of 28 arranged concentric of rotation axis, which is not shown specifically by two is ball bearing with energy The mode rotated around rotation axis 28 supports.

Motor 30 is disposed in motor shell 38, which extends along rotation axis 28 and be in hollow cylinder Design to shape.The electronics housing of the hollow posts bodily form is formed on the end of motor field frame 38 and by basic with flushing On perpendicular to rotation axis 28 arrange partition wall 42 it is separated.It is disposed with inside electronics housing 40 and bus system 18 The electronic device 44 connected with onboard power system 22.Electronic device 44 connects via the electroplating ventilating hole 46 of pressure seal with 34 electricity of stator Touching, to be powered in operation by electronic device 44 to stator 34.Electronics housing 40, motor shell 38 and partition wall 42 It is with casting die formula integral with one another and made of aluminum.In other words, electronics housing 40, motor shell 38 and partition wall 42 are pressure Cast aluminium.Electronics housing 40 is closed on the side opposite with partition wall 42 with case lid 48, and the case lid is by made of metal It is fixed in electronics housing 40 in a manner of it can unclamp at and by screw.

On the side opposite with electronics housing 40 of motor shell 38, pressure equally made of aluminum with casting die Contracting casing body 50 is plugged on the motor shell with flushing in a manner of it can unclamp.Compressor housing 50 is set substantially cup-shapedly Meter, wherein rim of a cup is closed by motor shell 38.Compressor housing 50 has compressor compartment 52, is disposed with inside it Form is the compressor 54 of scroll compressor.A part (i.e. one of scroll plate) anti-relative rotation of scroll compressor Ground is fixed on the axis 36 of motor 30, and is therefore driven by motor 30.In addition, compressor housing 50 also has high pressure Compartment 56, inner wall are at least partly formed by the bottom of a cup of cup-shaped compressor housing 50.Therefore, compressor compartment 52 Between high pressure compartment 56 and motor field frame 38.

The compressor outlet 58 of compressor 54 is passed through in high pressure compartment 56, high pressure compartment by the equipment not being shown specifically with Pressure tight manner is separated with compressor compartment 52.High pressure compartment 56 is lined with inserts 60, and the inserts is with injection molding method by moulding Material is integrally made.Here, forming the gap 62 with constant thickness between the inner wall and inserts 60 of high pressure compartment 56.It changes Yan Zhi, inserts 60 and compressor housing 50 have substantially constant distance, and therefore inserts 60 equally designs cup-shapedly.

High pressure compartment 56 has outlet 64, and high pressure compartment 56 is connect by outlet with discharge portion 66, which has not The oil eliminator being shown specifically.Inserts 60 include with 64 congruence of outlet and thus the opening 68 that is aligned with the outlet.Inserts 60 is also It is that the acoustic element 70 of the protrusion in direction of compressor 54 is directed toward from bottom of a cup including form, the acoustic element is for influencing inserts 60, the acoustic impedance being connect between gap 62 and compressor housing 50.Acoustic element 70 does not undertake other function.

In operation, refrigerant 10 is guided to horse in the region of partition wall 42 via the entrance 72 of motor shell 38 Up in shell 38.Here, preventing refrigerant 10 to be transferred in electronics housing 40 due to partition wall 42.10 edge of refrigerant Motor 30 be inhaled into compressor 54 and be pressurized there, to make the pressure rise of refrigerant 10.Refrigeration through being pressurized Agent 10 passes through compressor outlet 58 and is guided in high pressure compartment 56, wherein this process is configured to vortex because of compressor 54 Compressor and intermittently carry out.Therefore, propagating in the refrigerant 12 through being pressurized has a sound wave, and the sound wave strike first it is embedding On part 60.Based on the impedance jump between inserts 60 and compressor housing 50, the impedance jump is especially by gap 62 and embedding The special designing scheme and its density of part 60 and acoustic element 70 adjust, so that realizing sound wave reflection and portion on inserts 60 Divide and absorbs.And sound wave at least or does not only pass to compressor housing 50 with relatively small degree.In addition, inserts 60 is for making Compressor housing 50 and the refrigerant 10 being heated by pressurization are heat-insulated.Refrigerant 10 through being pressurized is via opening 68 and outlet 66 It flows into discharge portion 66 and is directed towards condenser 14 therefrom.

Cupuliform is three-dimensionally shown from motor shell 38 compressor housing 50 with seeing, the compressor housing are shown in Fig. 3 With flange 74, which there is a total of six to be used to accommodate the eyelet 76 of screw, make compressor housing 50 by these screws It is spirally connected in the assembled condition with motor field frame 38.Compressor compartment 52 has the diameter increased compared to high pressure compartment 56, and And high pressure compartment 56 includes a total of three outlet 64, wherein at least one outlet is returned for being used in the oil of lubrication motor 30 Guide to motor field frame 38.

Inserts 60 is shown to Fig. 4 neutral body, be integrally made of plastics and there are correspond to outlet 64 three A opening 68.The shape of inserts 60, namely especially its outer profile also corresponds to high pressure compartment 56.Inserts 60 is on the outside With a total of four flank 78 for being parallel to the extension of rotation axis 28, these flanks are supported on high pressure compartment 56 in the assembled condition Inner wall on, and its thickness be equal to gap 62 thickness.Here, in the assembled condition, by flank 78 in compressor housing Clearance fit is established between 50 and inserts 60.

Compressor housing 50 is being shown in figure along cuing open for rotation axis 28 respectively in Fig. 5 and Fig. 6.In outlet 64 and open In mouthfuls 68 at least two in be embedded with oil eliminator 80, refrigerant 10 and oil that may be mixed pass through the oil eliminator Outflow.Compressor outlet 68 can selectively be closed by the valve 82 of three finger valve forms, which is especially used as check-valves.

In short, the sound wave generated because refrigerant 10 is by pressurization strike on inserts 60 and be partially reflected there and It absorbs.Here, inserts 60 and its property, i.e. its material and its thickness are mutually assisted with degree appropriate and reflection, absorption and conduction It adjusts, wherein also change the amplitude and frequency of sound wave.Therefore, it can realize that multilayer is eliminated the noise by inserts 60.It is designed as by inserts 60 At the alternative of component that can be separately made, which is, for example, the swabbing of paint-like or paste.As an alternative, inserts 60 is high Press the coating on the inside of compartment 56.

Inserts 60 can be adjusted in terms of impedance modulation.Therefore, noise elimination can be matched for specific frequency, wherein nothing The other component part of electronic coolant compressor 12 need to be matched.Therefore, only by matching inserts 60, can make to make an uproar Sound is generated to be suitable for specifically requiring and it is expected with noise characterization.

Inserts 60 is placed into high pressure compartment 56, and the thus shape between the inner space and outer surface of compressor housing 50 At the second wall.Therefore, it is able to achieve the layer structure for reducing sound emission, wherein due to that can adjust by inserts 60 and gap 62 Whole impedance jump, and targetedly weaken specific frequency range.For adjusting wall of the parameter for weakening effect for inserts 60 Thick and density, especially material.Similarly, the surface of 60 inner side and outer side of size and inserts based on gap 62, i.e. structure, Acoustic characteristic has been determined.In addition, by acoustics spy is for example influenced by the acoustic element 70 of the formation such as arris, turning, flank Property, and sound travel can be targetedly influenced by acoustic element.

The present invention is not limited to previous embodiments.Specifically, in the case where not departing from present subject matter, art technology Personnel can therefrom derive other variant schemes of the invention.In particular, in addition, the list of each embodiment description of all combinations A feature can be all combined with each other in different ways, without departing from subject of the present invention.

Reference signs list

2 motor vehicles

4 front-wheels

6 rear-wheels

8 refrigerant circuits

10 refrigerants

12 electronic coolant compressors

14 condensers

16 evaporators

18 bus systems

20 motor vehicle control units

22 onboard power systems

24 batteries

26 safety devices

28 rotation axis

30 motor

32 rotors

34 stators

36 axis

38 motor shells

40 electronics housings

42 partition walls

44 electronic devices

46 electroplating ventilating holes

48 case lids

50 compressor housings

54 compressor compartments

54 compressors

56 high pressure compartments

58 compressor outlets

60 inserts

62 gaps

64 outlets

66 discharge portions

68 openings

70 acoustic elements

72 entrances

74 flanges

76 eyelets

78 flanks

80 oil eliminators

82 valves

Claims (10)

1. a kind of electronic coolant compressor (12) of motor vehicle (2), the electronic coolant compressor have band compressor every The compressor housing (50) of room (52) is disposed with compressor (54) in the compressor compartment, and the compressor is passed through the pressure In the high pressure compartment (56) of contracting casing body (50), wherein the high pressure compartment (56) is lined with inserts (60).

2. electronic coolant compressor (12) according to claim 1,

It is characterized in that,

It the cup-shaped ground of the inserts (60) and/or integrally designs.

3. electronic coolant compressor (12) according to claim 1 or 2,

It is characterized in that,

The compressor housing (50) is made of aluminum, and the inserts (60) is made of plastics.

4. electronic coolant compressor (12) according to any one of claim 1 to 3,

It is characterized in that,

Gap (62) are formed between the inserts (60) and the compressor housing (50).

5. electronic coolant compressor (12) according to claim 4,

It is characterized in that,

The inserts (60) has several flanks (78), and the flank support is on the compressor housing (50).

6. electronic coolant compressor (12) according to claim 4 or 5,

It is characterized in that,

The gap (62) has constant thickness.

7. electronic coolant compressor (12) according to any one of claim 1 to 6,

It is characterized in that,

The high pressure compartment (56) has outlet (64), and the inserts (60) has and the opening for exporting and being aligned (68)。

8. electronic coolant compressor (12) according to any one of claim 1 to 7,

It is characterized in that,

The compressor housing (50) is plugged on motor shell (38), and motor (30) are disposed in the motor shell, The compressor (54) are driven by the motor.

9. electronic coolant compressor (12) according to any one of claim 1 to 8,

It is characterized in that,

The inserts (60) has the acoustic element (70) for influencing acoustic impedance.

10. a kind of motor vehicle (2), with refrigerant circuit (8), the refrigerant circuit includes condenser (14) and evaporator (16) and electronic coolant compressor according to any one of claim 1 to 9 (12).