CN109906319A - The system for commercial vehicle of the screw compressor and motor that are cooled down jointly including band - Google Patents

The system for commercial vehicle of the screw compressor and motor that are cooled down jointly including band Download PDF

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Publication number
CN109906319A
CN109906319A CN201780068336.3A CN201780068336A CN109906319A CN 109906319 A CN109906319 A CN 109906319A CN 201780068336 A CN201780068336 A CN 201780068336A CN 109906319 A CN109906319 A CN 109906319A
Authority
CN
China
Prior art keywords
cooling
compressor
motor
oil
drive electronics
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.)
Pending
Application number
CN201780068336.3A
Other languages
Chinese (zh)
Inventor
P·科瓦克西克
H·内梅特
V·蒂哈尼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of CN109906319A publication Critical patent/CN109906319A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/26—Compressed-air systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/02—Arrangements of pumps or compressors, or control devices therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/02—Pumps characterised by combination with or adaptation to specific driving engines or motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/0085—Prime movers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/045—Heating; Cooling; Heat insulation of the electric motor in hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/047—Cooling of electronic devices installed inside the pump housing, e.g. inverters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/10—Fluid working
    • F04C2210/1005—Air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/22—Fluid gaseous, i.e. compressible
    • F04C2210/221—Air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/40—Electric motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/16—Air or water being indistinctly used as working fluid, i.e. the machine can work equally with air or water without any modification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/20—Heat transfer, e.g. cooling
    • F05B2260/205—Cooling fluid recirculation, i.e. after having cooled one or more components the cooling fluid is recovered and used elsewhere for other purposes

Abstract

The system (1) that the present invention relates to a kind of for commercial vehicle, it is with compressor (10), motor (5) and drive electronics (6), wherein, the motor (5) drives the compressor (10), wherein, motor (5), compressor (10) and drive electronics (6) have a common cooling circuit (100).

Description

The screw compressor that is cooled down jointly including band and motor for commercial vehicle System
Technical field
The present invention relates to a kind of systems for commercial vehicle comprising screw compressor and motor.
Background technique
It is known from the state of the art the screw compressor for commercial vehicle.Using such screw compressor, to mention For for compressed air required for such as commercial vehicle braking system.
In this regard, it is especially known with the compressor of oil filling, especially it is known that screw compressor, wherein proposing Adjust the task of oil temperature.This is usually realized as follows: there is external oil cooler, what the oil cooler and oil were filled Compressor is connected with oil return line by thermostatic valve.Oil cooler is heat exchanger herein, and there are two each other for the heat exchanger tool Isolated circuit, wherein liquid that is, compressor oil of the first circuit setting for heat, and second servo loop is used for coolant liquid. It can be for example using the empty gas-liquid mixture for including antifreezing agent or other oil as coolant liquid.
Then oil cooler must be connect with compressor oil circuit by pipeline or hose, and oil return line must be protected With anti-leak.
In addition, the volume of the outside must be with oil filling, so that the total amount of oil also increases.System inertia increases as a result,.This Outside, oil cooler mechanical must be placed and fixed, by holding meanss in surrounding or by separated holding meanss, this Additional fixed mechanism is needed, it also requires installation space.
The integrated oil cooled screw compressor of band as known to US 4,780,061.
Furthermore 37 17 493 A1 of DE discloses a kind of coil-type compression machine equipment being arranged in compact shell, has Oil cooler on the motor of screw compressor.
A kind of compressor flange for screw compressor as known to 10 2,010 015 151 A1 of DE.
In addition, becoming known for the connecting flange of the heat exchanger of motor vehicle by 2014/0190674 A1 of US, with cold But channel.
A kind of heat exchanger with flange connecting apparatus it is known that by 10 2,013 011 061 B3 of DE, wherein flange connects Connection device has connecting flange, and the connecting flange is die casting and is used to receive bolt with what is manufactured with foundry engieering Through-hole.
A kind of component including electronic cooler and motor as known to 2003/143090 A1 of US.
In addition, a kind of cooling device as known to 2012/076679 A1 of US, wherein same motor and drive electronics With cooling component.
Summary of the invention
The task of the present invention is develop a kind of system for commercial vehicle comprising coil-type compression in an advantageous manner Machine and motor, in particular so that can provide the cooling feasibility in section space-efficient for this kind of system.
The task is solved according to the present invention by the system for commercial vehicle with claim 1 feature, the system Including screw compressor and motor.To this setting, the system for commercial vehicle has compressor, motor and driving electricity Sub-device, wherein compressor described in the motor drive, wherein motor, compressor and drive electronics have common Cooling circuit.
The present invention is based on following basic conceptions: this with compressor, motor and drive electronics is used for commercial vehicle Whole component parts of system cooled down with one coolant liquid of phase.The especially efficient of corresponding compressor assembly is provided as a result, Cooling management.
Preferably, these cooling elements are connected in series, so that all cooling elements have the identical flow rate of coolant (Flussrate)。
Compressor can especially screw compressor.Such screw compressor is especially suitable for for mixing as follows In the new application of power commercial vehicle, the compressor generated in the mixed powered vehicle for compressed air is not to continue Driving unit by commercial vehicle is driven.
Furthermore settable, cooling circuit has coolant channel, and the coolant channel at least partially passes through a succession of Cooling element is constituted.The series connection can be realized simple construction.In addition, the pressure history in the coolant circuit It generally can relatively easily adjust.
It is especially settable, a cooling element is at least respectively configured to motor, compressor and drive electronics.This The cooling element of sample can be for example heat exchanger element, such as can be connected in series in the cooling circuit.By each Corresponding cooling element is arranged in system component can be realized the heat extraction for meeting demand.
Furthermore settable, motor has starter cooling element, wherein these cooling elements are arranged so that coolant The cooling element of drive electronics is first flowed through in the cooling circuit, then passes through starter cooling element and is then flowed The cooling element of overcompression machine.Thus it generates advantage: cooling element (the i.e. driving electronics dress of most of heats must be exported first The cooling element set) it is flowed through first.Thus, it is possible to realize, the temperature that can simply control in drive electronics rises simultaneously And temperature adjusting can be simply carried out in acceptable operating temperature range herein.The arragement construction also considers following feelings Condition: the most important region that temperature is adjusted occurs in the region of drive electronics, because in each case will herein It avoids excessively heating.In addition, drive electronics have high hot spoke due to the high energy losses in drive electronics It penetrates, it is therefore desirable to enough heat extractions.Furthermore it to realize, less pressure loss is generated in the cooling circuit, so that this is cold But agent pumping keeps small by pumping energy needed for the cooling circuit.
But furthermore settable, motor yet has shell cooling element, wherein these cooling elements are arranged so that cold But agent first flows through the shell cooling element in the upstream of the cooling element of drive electronics in the cooling circuit.It is this Cooling is not relatively crucial, because expecting the less heat absorption in shell cooling element herein.Pressure decline is also relatively small.
Furthermore settable, the cooling element of drive electronics has current divider.It can be realized by current divider, avoid driving Pressure loss in the cooling element of dynamic electronic device, because thus can accordingly adjust the flow cross of cooling duct.Especially It is thus to further provide for high cooling efficiency and heat discharge characteristic, while preventing the excessive pressure drop in cooling element.
Furthermore settable, the cooling element of drive electronics has substantially W-shaped flow channel.It is achieved in, it is cold But agent serpentine shape percolation passes through the cooling element of drive electronics and thus flows through the big surface of drive electronics, from And it generally can be realized the good heat extraction in drive electronics region.
Detailed description of the invention
It is now to illustrate other details and advantage of the invention in detail by the embodiment being shown in the accompanying drawings.
In attached drawing:
Fig. 1 shows schematically cuing open for an embodiment according to the invention of the system according to the invention for commercial vehicle Face figure, the system include screw compressor and motor；
Fig. 2 shows the schematic figures of the cooling component of the system according to the invention for commercial vehicle；
Fig. 3 shows the perspective view of the structure of the cooling component according to Fig. 2；And
Fig. 4 shows the explanatory view of the structure of the cooling element for drive electronics.
Specific embodiment
Fig. 1 illustrates the screw compressor 10 meaned for one embodiment of the present of invention with schematic cross section.
Screw compressor 10 has mounting flange 12, for screw compressor 10 to be mechanically fixed against herein not On the motor further shown.
However input shaft 14 is shown, by the input shaft, torque from motor be transmitted to one of two screw rods 16 and 18, I.e. on screw rod 16.
Screw rod 18 is engaged with screw rod 16 and is driven by it.
Screw compressor 10 has shell 20, and the basic building block of the screw compressor 10 is disposed in the shell.
Shell 20 is filled with oil 22.
On air input side, inlet connection 24 is provided on the shell 20 of screw compressor 10.Inlet connection 24 It constructs so herein, so that being provided with air filter 26 on inlet connection.In addition, radially in air intake adapter tube 24 It is upper to be arranged by air intake 28.
Spring is provided in region between the position of inlet connection 24 and the installation of inlet connection 24 on the housing 20 to add The valve inserts 30 of load, the valve inserts are embodied herein as axial seal.
The valve inserts 30 works as check-valves.
30 downstream of valve inserts is provided with air input passage 32, air is inputed to two spiral shells by the air input passage Bar 16,18.
The outlet side of two screw rods 16,18 is provided with the air discharge pipe 34 including riser culverts 36.
It is provided with temperature sensor 38 in the end regions of riser culverts 36, oil can be monitored by the temperature sensor Temperature.
It deoils the bracket 40 of element 42 in addition, being provided in air outlet area for air.
For air deoil element bracket 40 in the state assembled in the region towards bottom (as also in Fig. 1 Illustrated in) there is air to deoil element 42.
In addition, being internally provided with corresponding screen or known filtering and oil separating device what air deoiled element 42 44, it is not further described.
About it is having assembled and operationally ready state (that is, as illustrated in fig. 1 like that) on center In portion region, there is air outlet opening 46 for the deoil bracket of element 40 of air, the air outlet opening leads to non-return Valve 48 and minimum pressure valve 50.Check-valves 48 and minimum pressure valve 50 can also construct in a common combination valve.
Then check-valves 48 is provided with air outlet slit 51.
Air outlet slit 51 is usually connect with corresponding known compressed air customer.
It returns again to and leads into shell 20 in order to which the air oil 22 that is in element 42 and being separated that deoils will be in, be provided with Riser road 52, the riser culverts the bracket 40 for the element 42 that deoils for air output end to the transfer portion in shell 20 In have filtering and check-valves 54.
In filtering and 54 downstream of check-valves, nozzle 56 is provided in housing bore.Oil leads back to pipeline 58 and is back directed to greatly The intermediate region of screw rod 16 or screw rod 18 is caused, so that oil 22 is conveyed to the screw rod again.
Purge cock 59 is provided in the bottom section in assembled state of shell 20.It can by purge cock 59 Corresponding fuel outlet is opened, oil 22 can be discharged by the fuel outlet.
There is also attachment 60 in the lower area of shell 20, oil screen 62 is fixed in the attachment.By setting Set oil screen access road 64 within the casing 20, the guidance first of oil 22 to thermostatic valve 66.
Instead of thermostatic valve 66, settable control and/or regulating device is in shell by the control and/or regulating device The oil temperature of oil 22 in body 20 can be monitored and can be adjusted to target value.
In the downstream of thermostatic valve 66 followed by the oil-in of oil screen 62, the oil screen leads back pipeline 68 by center Oil 22 is returned to guide spiro rod 18 again or to screw rod 16, but the bearing 70 of the also oil lubrication of guiding axis 14.In the region of bearing 70 In be also equipped with nozzle 72, the nozzle within the casing 20 with lead back pipeline 68 and be associatedly arranged.
Cooler 74 is engaged in attachment 60.
Safety valve 76 (about the state assembled) is in the upper area of shell 20, excessive pressure within the casing 20 Power can be lowered by the safety valve.
Bypass conduit 78 is in 50 upstream of minimum pressure valve, and the bypass conduit leads to pressure reducing valve 80.Pass through the pressure reducing valve 80 (pressure reducing valve is steered by the connection with air input unit 32) air can return to the region for being directed to air intake 28 In.Settable exhaust valve not shown further and it may also set up nozzle in this region (diameter of intake line reduce Portion).
In addition, fuel level sensor 82 can be arranged in the outer wall of shell 20 about in the height of pipeline 34.The oil level passes Sensor 82 can be for example optical sensor and be arranged in this way and design, and run so that can identify that by the sensor signal Middle oil level whether is in 82 top of fuel level sensor or whether fuel level sensor 82 exposes and the thus corresponding decline of oil level.
Alarm unit is may also set up in conjunction with the monitoring, the alarm unit is defeated by corresponding fault message or warning message Out or it is sent to the user of the system.
The function of screw compressor 10 shown in FIG. 1 is as follows herein:
Air is inputted by air intake 28 and reaches screw rod 16,18 by check-valves 30, and air is pressed at screw rod Contracting.(air-oil-mixture is with the factor of the compression between 5 to 16 times in screw rod 16 for compressed air-oil-mixture Risen later by discharge line 34 via riser culverts 36 with 18) it is directly blown on temperature sensor 38.
As long as also partly the air with oil particles then pass through bracket 40 be directed to air deoil in element 42 and Reach corresponding minimum pressure just to reach in air outlet manifold 51.
Oil 22 in shell 20 passes through oil screen 62 and is maintained at running temperature as necessary by heat exchanger 74 On.
As long as not needing to cool down, does not use and disconnect heat exchanger 74 yet.
Corresponding connect is carried out by thermostatic valve 68.After the purification in oil screen 64, by pipeline 68, oil is conveyed to Screw rod 18 or screw rod 16 but also it is conveyed to bearing 72.Screw rod 16 or screw rod 18 are supplied by leading back pipeline 52,58 with oil 22, Herein, oil 22 deoils in air and is purified in element 42.
The screw rod 16 and 18 of screw compressor 10 is driven by motor not shown further, the motor will Its torque is transmitted on screw rod 16 by axis 14, which engages with axis 18 again.
Guaranteed by pressure reducing valve 80 not shown further: for example being deposited in the outlet side of screw rod 16,18 in operating status High pressure will not be latched in the region of intake line 32, but especially in starting compressor in intake line 32 Region in be constantly present low input pressure, especially atmospheric pressure.Otherwise, with the starting of compressor pressure very high first Power can be generated in the outlet side of screw rod 16 and 18, and the pressure can be such that drive motor overloads.
Fig. 2 shows an implementation for the system 1 according to the invention for commercial vehicle with schematical arragement construction The cooling component of example, the system comprises compressor 10, the compressor as illustrated in fig. 1, i.e. coil-type compression Machine 10.
It is but settable in principle: any kind of compressor can be used in system 1.
The system 1 also has motor 5 and drive electronics 6.Cooling circuit 100 is used herein to motor 5, compression The heat extraction of machine 10 and drive electronics 6.
Therefore motor 5, compressor 10 and drive electronics 6 have a common cooling circuit 100.
Cooling element, the stator that entire cooling system 100 has multiple cooling elements, is used for drive electronics 102 Cooling element 103, compressor cooling element 104.
Linking has shell cooling element 101 first on coolant entrance 105, but the shell cooling element is directly communicated to The cooling element of drive electronics 102.
But it may also set up in principle, coolant entrance 105 is directly connect with the cooling element of drive electronics 102.From The cooling element of drive electronics 102, the flow direction of coolant 106 of liquid are used for the stator cooling element 103 of motor 5, and And hereafter flow to the cooling element 104 of compressor 10.Hereafter, it the internal or external cooling duct of coolant guiding or cools down soft Pipe 107.From cooling element 104, then coolant passes through coolant outlet 108 and flow in another cooling circuit, there The coolant can for example be driven by pump.
Fig. 4 shows the arragement construction of system 1 with three-dimensional view, is such as schematically shown in FIG. 3.
Because the cooling element 102 of drive electronics 6 must export most of heat, to avoid in driving electronics Excessively high temperature rises in the region of device 6, so proposing special configuration herein.
The cooling element 102 of drive electronics 6 has substantially W-shaped flow channel 102a.
In addition, being provided with current divider 102b in the cooling element 102 of drive electronics 6.
Coolant channel 107 has enough cross sections herein, so as in cooling element entrance 109 and cooling element outlet There is small pressure drop between 110.By current divider 102b, the velocity of liquid assets inside cooling duct 107 continues to keep high, because For the decline for preventing velocity of liquid assets too strong here by current divider 102b.
Reference signs list
1 system
5 motor
6 drive electronics
10 screw compressors
12 mounting flanges
14 input shafts
16 screw rods
18 screw rods
20 shells
22 oil
24 inlet connections
26 air filters
28 air intakes
30 valve inserts
32 air input passages
34 air discharge ducts
36 riser culverts
38 temperature sensors
40 air/oil separators
42 oil catchers
44 screens or known filtering or oil separating device
46 air outlet openings
48 control valves
50 minimum pressure valves
51 air outlets
52 riser culverts
54 filterings and control valve
56 chokes portions
58 oil lead back to pipeline
59 purge cocks
60 attachments
62 oil screens
64 oil screen access roades
66 thermostatic valves
68 lead back pipeline
70 bearings
72 chokes portions
76 safety valves
78 bypass conduits
80 pressure reducing valves
82 fuel level sensors
100 cooling circuits
101 shell cooling elements
102 are used for the cooling element of drive electronics
102a flow channel
102b current divider
103 stator cooling elements
104 compressor cooling elements
105 coolant entrances
106 coolants
107 cooling ducts/cooling tube
108 coolant outlets
109 cooling element entrances
The outlet of 110 cooling elements

Claims (8)

1. the system (1) of commercial vehicle is used for, with compressor (10), motor (5) and drive electronics (6), wherein institute It states motor (5) and drives the compressor (10), wherein motor (5), compressor (10) and drive electronics (6) have One common cooling circuit (100).
2. system (1) described in accordance with the claim 1, which is characterized in that the compressor (10) is screw compressor (10).
3. according to system described in claim 1 or claim 2 (1), which is characterized in that the cooling circuit (100) has Coolant channel (107), the coolant channel at least partially pass through a succession of cooling element and constitute.
4. system (1) described in accordance with the claim 3, which is characterized in that the motor (5), the compressor (10) and At least one cooling element is respectively configured in the drive electronics (6).
5. system (1) according to claim 4, which is characterized in that the motor (5) has stator cooling element (103), wherein these cooling elements are arranged so that coolant first flows through the driving electricity in the cooling circuit (100) The cooling element (102) of sub-device (6) then passes through the stator cooling element (103) and subsequently passes through the compressor (10) cooling element (104).
6. system (1) according to claim 5, which is characterized in that the motor (5) also has shell cooling element (101), wherein these cooling elements are arranged so that coolant in the cooling circuit (100) in the drive electronics (6) cooling element (102) upstream first flows through the shell cooling element (101).
7. according to system described in one of claim 4 to 6 (1), which is characterized in that the cooling of the drive electronics (6) Element (102) has current divider (102b).
8. according to system described in one of claim 4 to 7 (1), which is characterized in that the cooling of the drive electronics (6) Element (102) has substantially W-shaped flow channel (102a).
CN201780068336.3A 2016-09-21 2017-09-19 The system for commercial vehicle of the screw compressor and motor that are cooled down jointly including band Pending CN109906319A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016011503.3A DE102016011503A1 (en) 2016-09-21 2016-09-21 System for a commercial vehicle comprising a screw compressor and an electric motor
DE102016011503.3 2016-09-21
PCT/EP2017/073553 WO2018054868A1 (en) 2016-09-21 2017-09-19 System for a utility vehicle comprising a screw compressor and an electric motor with a common cooling system

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CN109906319A true CN109906319A (en) 2019-06-18

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EP (1) EP3516237A1 (en)
JP (1) JP6877554B2 (en)
KR (1) KR20190053919A (en)
CN (1) CN109906319A (en)
BR (1) BR112019005054A2 (en)
DE (1) DE102016011503A1 (en)
WO (1) WO2018054868A1 (en)

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KR20190053919A (en) 2019-05-20
US20190211827A1 (en) 2019-07-11
EP3516237A1 (en) 2019-07-31
JP2019529803A (en) 2019-10-17
JP6877554B2 (en) 2021-05-26
DE102016011503A1 (en) 2018-03-22
WO2018054868A1 (en) 2018-03-29
BR112019005054A2 (en) 2019-06-18

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