WO2022220452A1 - 공기 압축기 - Google Patents
공기 압축기 Download PDFInfo
- Publication number
- WO2022220452A1 WO2022220452A1 PCT/KR2022/004534 KR2022004534W WO2022220452A1 WO 2022220452 A1 WO2022220452 A1 WO 2022220452A1 KR 2022004534 W KR2022004534 W KR 2022004534W WO 2022220452 A1 WO2022220452 A1 WO 2022220452A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- disposed
- cooling
- cooling passage
- air compressor
- motor unit
- Prior art date
Links
- 238000001816 cooling Methods 0.000 claims abstract description 171
- 230000006835 compression Effects 0.000 claims abstract description 19
- 238000007906 compression Methods 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 19
- 239000003990 capacitor Substances 0.000 description 16
- 239000000446 fuel Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5813—Cooling the control unit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/5826—Cooling at least part of the working fluid in a heat exchanger
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/213—Heat transfer, e.g. cooling by the provision of a heat exchanger within the cooling circuit
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the present invention relates to an air compressor, and more particularly, to an air compressor integrally provided with a control unit.
- a fuel cell vehicle refers to a vehicle in which hydrogen and oxygen are supplied to a humidifier, and electric energy generated through an electrochemical reaction, which is a reverse reaction of electrolysis of water, is supplied as a driving force of the vehicle. This is disclosed.
- passenger fuel cell vehicles are equipped with a fuel cell stack of 80 kW class, and when the fuel cell stack is operated under pressurized conditions, the air supplied to the fuel cell stack is supplied at a high pressure of 1.2 to 3.0 bar.
- An air compressor having a rotation speed of 5,000 to 100,000 rpm should be used.
- a fuel cell vehicle typically includes a fuel cell stack that produces electricity, a humidifier that humidifies and supplies fuel and air to the fuel cell stack, a fuel supply that supplies hydrogen to the humidifier, and air that supplies air containing oxygen to the humidifier. It is composed of a supply unit and a cooling module for cooling the fuel cell stack.
- the air supply unit consists of an air cleaner that filters foreign substances contained in the air, an air compressor that compresses and supplies the air filtered by the air cleaner, and a control box that controls the air compressor.
- the above-mentioned air compressor compresses air sucked in from the outside using an impeller and then sends it out to the fuel cell stack through an exhaust port. At this time, the impeller and the shaft constituting the compression unit are driven by the rotational force of the motor.
- the motor of this air compressor is powered through an inverter, and its operation is controlled.
- the inverter includes a printed circuit board (PCB) on which electric elements such as transistors, capacitors, inductors, and the like, fixed resistors, diodes, and drivers are mounted.
- PCB printed circuit board
- An air compressor includes a housing; a rotating shaft disposed inside the housing; a compression unit connected to the rotating shaft to compress and discharge the inlet air; a motor unit for driving the rotating shaft; a control board for controlling the motor unit and a filter unit for filtering noise from external power and supplying it to the control panel, wherein the housing includes a first cooling passage for cooling the motor unit and a second cooling path for cooling the filter unit A cooling passage may be provided, wherein the first cooling passage and the second cooling passage communicate with each other.
- the first cooling passage may be arranged in an axial direction of the motor unit.
- the first cooling passage may be provided in plurality.
- the plurality of first cooling flow paths are connected through a connection flow path, and the connection flow path may be characterized in that the heat exchange medium moving the first cooling flow path is arranged to move in a zigzag manner.
- the second cooling passage may be arranged along a radial direction of the motor unit.
- the second cooling passage may be characterized in that heat exchange with the configuration of the filter unit is performed.
- the second cooling passage may be disposed inside the heat exchanger.
- the heat exchanger may be characterized in that heat exchange is performed on at least one surface.
- the second cooling passage may be disposed at the rear of the motor unit.
- the first cooling passage and the second cooling passage may be connected in series.
- a region of the second cooling passage and the first cooling passage may be disposed at an upper portion and a lower portion of the filter unit, respectively.
- the filter unit may include a transistor, and the heat exchanger may perform heat exchange with the transistor.
- the second cooling passage may include a 2-1 cooling passage and a 2-2 cooling passage.
- the 2-1 cooling flow path is disposed above the filter unit, and the 2-2 cooling flow path is disposed below the filter unit.
- one side of the heat exchanger performs heat exchange with the filter unit, and the other side of the heat exchanger performs heat exchange with the motor unit.
- the heat exchanger may include a first heat exchange passage in which the 2-1 cooling passage is disposed and a second heat exchange passage in which the 2-2 cooling passage is disposed.
- the housing includes an impeller housing and a driving housing, wherein the motor unit is disposed on the driving housing, accommodating parts are respectively formed on both upper sides of the motor part, and the filter part is disposed in the accommodating part can do.
- At least one of the accommodating parts may be connected to the connector part.
- the motor unit includes a rotor disposed outside the rotation shaft and a stator disposed outside the rotor, wherein the stator includes teeth and a shoe disposed at an end of the teeth, and A groove may be disposed at an end of the shoe facing it to be deflected from the centerline of the tooth.
- a cooling cover disposed on the heat exchanger may be included, and the cooling cover and the heat exchanger may be provided integrally.
- FIG. 1 is a cross-sectional view schematically illustrating an air compressor according to an embodiment of the present invention.
- FIG. 2 is a plan view of a housing and a filter unit according to an embodiment of the present invention.
- FIG. 3 is a plan view of an air compressor according to an embodiment of the present invention.
- FIG. 4 is a partial cross-sectional view of an air compressor according to an embodiment of the present invention.
- FIG. 5 is a plan view of a housing according to an embodiment of the present invention.
- FIG. 6 is a partial cross-sectional view of a front portion of an air compressor according to an embodiment of the present invention.
- FIG. 7 is a partial cross-sectional view of an air compressor front portion according to an embodiment of the present invention.
- FIG. 8 is a view showing positions of a first cooling passage and a second cooling passage in a housing according to an embodiment of the present invention.
- FIG. 9 is a view showing the shape of the first cooling passage of FIG. 8 .
- FIG. 10 is a view showing an inflow/outflow structure of a heat exchange medium in FIG. 1 .
- FIG. 11 is a view showing the internal structure of FIG. 1 .
- FIG. 12 is a view showing a first embodiment of the cooling flow path of FIG. 1 .
- FIG. 13 is a view showing the flow of the heat exchange medium of FIG. 12 .
- FIG. 14 is a view showing a second embodiment of the cooling flow path of FIG. 1 .
- FIG. 15 is a view showing the flow of the heat exchange medium of FIG. 14 .
- 16 is a perspective view of a cover according to an embodiment of the present invention.
- a component when it is described that a component is 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to the other component, but also with the component It may also include the case of 'connected', 'coupled' or 'connected' due to another element between the other elements.
- FIG. 1 is a cross-sectional view schematically illustrating an air compressor according to an embodiment of the present invention.
- the air compressor may include a housing 100 , a compression unit 200 , a motor unit 300 , a control board 410 , a filter unit 500 , and a bus bar assembly 600 .
- the housing 100 forms an exterior, and the rotating shaft 101 , the compression unit 200 , and the motor unit 300 are disposed therein.
- the housing 100 may include an impeller housing 110 and a driving housing 120 .
- An inlet hole and an outlet port may be provided in the impeller housing 110 .
- the compression unit 200 is disposed in the inner space of the impeller housing 110 . At this time, the air introduced through the inlet hole is compressed by the compression unit 200 and discharged to the outside through the outlet.
- the driving housing 120 is connected to the rear end of the impeller housing 110 .
- the term “rear” refers to a direction toward the motor unit 300 with respect to the compression unit 200, and “front” refers to a direction opposite to the rear.
- the motor unit 300 is disposed in the inner space of the driving housing 120 .
- a cooling air flow path may be formed inside the driving housing 120 .
- the compression unit 200 is disposed at the front inside the housing 100 .
- the motor unit 300 rotationally drives the rotation shaft 101 to provide a driving force to the compression unit 200 .
- the motor unit 300 includes a rotor 310 and a stator 320 .
- the stator 320 may include a driving coil.
- the driving coil generates electromagnetic force when power is supplied from the outside. Accordingly, the rotor 310 may rotate by electromagnetic interaction between the rotor 310 and the stator 320 . Meanwhile, the rotor 310 has one side connected to the compression unit 200 to drive the compression unit 200 .
- the driving coil is preferably operated by receiving three-phase AC power.
- the stator 320 of the motor unit 300 is disposed on the outer surface of the rotor 310 .
- the driving coil 330 is wound on the outer surface of the teeth 321 provided in the stator 320 .
- An insulator 340 may be disposed between the teeth 321 and the driving coil 330 .
- the end of the tooth 321 is disposed on the circumference to face the rotor (310).
- a shoe 322 is disposed at an end of the tooth 321 facing the rotor 310 .
- a groove 322a may be formed at an end of the shoe 322 . These grooves 322a can prevent the concentration of magnetic flux into the teeth 321 of the stator 320 when the rotor 310 rotates.
- the groove 322a may be disposed to be deflected from the center line of the tooth 321 .
- the control board 410 is equipped with circuits and elements for controlling the motor unit 300 .
- the control board 410 may be a printed circuit board (PCB).
- the control board 410 may be disposed on the rear side of the rotation shaft 101 and the motor unit 300 , and may be spaced apart from the rear end of the rotation shaft 101 .
- the control board 410 is formed in the shape of a board.
- the thickness direction of the control board 410 may be disposed to face the axial direction of the rotation shaft 101 .
- the filter unit 500 receives external power and supplies it to the control board 410 .
- the filter unit 500 supplies the control board 410 with noise of external power removed.
- the filter unit 500 may be disposed radially outside the motor unit 300 .
- the bus bar assembly 600 transmits the power of the control board 410 to the motor unit 300 . At this time, the power may be transmitted to the motor unit 300 through the bus bar assembly 600 through the filter unit 500 .
- the bus bar assembly 600 may transmit the three-phase AC voltage converted by the filter unit 500 to the motor unit 300 .
- FIG. 2 is a plan view of a housing and a filter unit according to an embodiment of the present invention
- FIG. 3 is a plan view of an air compressor according to an embodiment of the present invention.
- the driving housing 120 has a space in which the compression unit 200 and the motor unit 300 are disposed.
- the driving housing 120 may form the filter unit accommodating unit 130 in which the filter unit 500 is disposed.
- the filter unit 500 may include a transistor 510 , a capacitor assembly 520 , and a current sensor assembly 530 .
- the transistor 510 converts a DC voltage into a driving voltage of the motor unit 300 through switching driving.
- the transistor 510 is disposed on the rear side of the filter unit accommodating part 130 and is connected to the control board 410 .
- the transistor 510 may be an insulated gate bipolar transistor (IGBT).
- the transistor 510 includes six IGBTs, a first phase U high-side switching element, a first phase U low-side switching element, and a second phase V high-side switching element. ) a switching device, a second phase (Phase V) low side switching device, a third phase (Phase W) high side switching device, and a third phase (Phase W) low side switching device. .
- the transistor 510 is connected to the capacitor assembly 520 and the current sensor assembly 530 .
- the capacitor assembly 520 is electrically connected to an external power source to receive and store a high voltage DC current. Also, the capacitor assembly 520 is electrically connected to the transistor 510 and the bus bar assembly 600 .
- the current sensor assembly 530 detects a current transmitted to the motor unit 300 .
- the current sensor assembly 530 is electrically connected to the transistor 510 and the bus bar assembly 600 .
- the transistor 510 , the capacitor assembly 520 , and the current sensor assembly 530 may be mounted in the filter unit accommodating part 130 .
- the capacitor assembly 520 and the current sensor assembly 530 may be disposed in the first direction (X-axis direction).
- the transistor 510 may be disposed in the second direction (Y-axis direction) with respect to the capacitor assembly 520 and the current sensor assembly 530 .
- the first direction (X-axis direction) and the second direction (Y-axis direction) may be perpendicular, and the second direction (Y-axis direction) may be parallel to the axial direction.
- the bus bar assembly 600 connects the motor unit 300 and the filter unit 500 .
- the bus bar assembly 600 transmits power from the control board 410 to the motor unit 300 .
- the bus bar assembly 600 may be electrically connected to the capacitor assembly 520 and the current sensor assembly 530 .
- the bus bar assembly 600 may include a plurality of bus bars, at least one of the plurality of bus bars may be connected to the capacitor assembly 520 , and the other at least one of the plurality of bus bars may be connected to the current sensor assembly 530 . have.
- the bus bar assembly 600 may be spaced apart from the transistor 510 in the second direction (Y-axis direction) with the capacitor assembly 520 and the current sensor assembly 530 interposed therebetween. In this case, the bus bar assembly 600 may pass through the filter unit accommodating unit 130 to be connected to the motor unit 300 .
- a through hole 120H in which the bus bar assembly 600 is disposed may be formed in the driving housing 120 .
- One end of the bus bar assembly 600 may be connected to the motor unit 300 with respect to the through hole 120H, and the other end may be connected to the filter unit 500 .
- the air compressor having this structure minimizes the thickness of the housing between the motor unit 300 and the filter unit 500 and compactly arranges the components of the filter unit 500 in the filter unit accommodating unit 130 . , the size of the air compressor can be reduced.
- the bus bar assembly 600 may include a bus bar 610 and a bus bar fixing member 620 .
- the bus bar 610 is electrically connected to the motor unit 300 . At this time, the bus bar 610 supplies the AC voltage converted by the transistor 510 to the motor unit 300 .
- the plurality of bus bars 610 include a U-phase bus bar 611 for transmitting AC power of a first phase (Phase U) and a V-phase bus bar 612 for transmitting AC power of a second phase (Phase V). and a W-phase bus bar 613 that transmits AC power of the third phase (Phase W).
- the plurality of bus bars 610 may extend radially outward from the motor unit 300 .
- the bus bar 610 may pass through the through hole 120H and be bent toward the filter unit 500 .
- the U-phase bus bar 611 may be bent toward the capacitor assembly 520
- the V-phase and W-phase bus bars 612 and 613 may be bent toward the current sensor assembly 530 .
- Ends of the U-phase, V-phase, and W-phase bus bars 611 , 612 , and 613 may be exposed from the bus bar fixing member 620 while being spaced apart from each other.
- at least one end of the plurality of bus bars 610 may be connected to the capacitor assembly 520 , and the rest of the plurality of bus bars 610 may be connected to the current sensor assembly 530 .
- an assembly space can be secured between the bus bar 610 and the capacitor assembly 520 and the current sensor assembly 530 , and assembly is convenient. can increase
- the bus bar fixing member 620 fixes the plurality of bus bars 610 to the housing 100 in an insulated state.
- the bus bar fixing member 620 may include a grommet 621 and a guide member 622 .
- the grommet 621 is disposed in the through hole 120H to fix the plurality of bus bars 610 passing through the through hole 120H.
- the grommet 621 may have elasticity and may be made of an insulating material.
- the grommet 621 may be a rubber material.
- the guide member 612 fixes at least a portion of the plurality of bus bars 610 on the mounting surface 121 .
- the guide member 612 may guide an end of each of the plurality of bus bars 610 to the capacitor assembly 520 or the current sensor assembly 530 .
- the guide member 612 may be made of an insulating material.
- the guide member 612 may be a plastic material.
- the air compressor according to the present invention includes a plurality of cooling passages 700 for cooling the motor unit 300 .
- the plurality of cooling passages 700 may extend in parallel with the axial direction of the rotation shaft ( 101 of FIG. 1 ).
- the plurality of cooling passages 700 may be embedded in the housing 100 and disposed between the motor unit 300 and the filter unit 500 .
- the plurality of cooling passages 700 are spaced apart from each other in the circumferential direction of the motor unit 300 so as to surround at least one side of the motor unit 300 to absorb heat generated by the motor unit 300 . have.
- the air compressor according to the present invention may include a connector part 800 , a cooling cover 900 , a discharge resistor 1000 , a first fixing member 1100 , and a connection member 1200 .
- the connector unit 800 may apply an external power to the filter unit 500 and transmit a signal detected by the filter unit 500 to the control board 410 .
- the connector part 800 may include a first connector 810 and a second connector 820 .
- the first connector 810 electrically connects the control board 410 and the current sensor assembly 530 .
- it can be checked whether the second connector 820 and the capacitor assembly 520 are connected.
- FIG. 4 is a partial cross-sectional view of an air compressor according to an embodiment of the present invention
- FIG. 5 is a plan view of a housing according to an embodiment of the present invention
- FIG. 6 is a partial cross-sectional view of a front part of the air compressor according to an embodiment of the present invention
- 7 is a partial cross-sectional view of the front part of the air compressor according to an embodiment of the present invention
- FIG. 8 is a view showing the positions of the first cooling passage and the second cooling passage in the housing according to the embodiment of the present invention.
- 9 is a view showing the shape of the first cooling passage of FIG. 8
- FIG. 10 is a view showing the inflow/outflow structure of the heat exchange medium in FIG. 1 , FIG.
- FIG. 11 is a view showing the internal structure of FIG. 1
- FIG. 12 1 is a view showing a first embodiment of the cooling flow path of FIG. 1
- FIG. 13 is a diagram showing the flow of the heat exchange medium of FIG. 12
- FIG. 14 is a view showing a second embodiment of the cooling flow path of FIG. 1
- FIG. 15 is a view showing the flow of the heat exchange medium of FIG. 14 .
- a cooling passage 700 passes between the motor unit ( 300 in FIG. 1 ) and the filter unit ( 500 in FIG. 1 ).
- the cooling passage 700 absorbs heat from the motor unit 300 and the filter unit 500 .
- any one selected from air, refrigerant, and cooling water may circulate as a heat exchange medium.
- the cooling passage 700 may include a first cooling passage 710 and a second cooling passage 720 .
- the first cooling passage 710 may cool the motor unit 300 .
- the second cooling passage 720 may cool the filter unit 500 .
- An inlet pipe 135 for introducing a heat exchange medium into the housing 100 and an outlet pipe 140 through which a heat exchange medium undergoing heat exchange in the housing 100 flows out may be disposed in the housing 100 .
- the heat exchange medium introduced through the inlet pipe 135 may circulate in the first cooling passage 710 to cool the motor unit 300 .
- the heat exchange medium moving the first cooling passage 710 may be disposed outside the motor unit 300 to absorb heat generated by the motor unit 300 .
- a plurality of first cooling passages 710 may be provided and disposed in the axial direction of the motor unit 300 .
- the first cooling passage 710 may be disposed so that the heat exchange medium moves along the pipe.
- the first cooling passage 710 may have one end disposed toward the compression unit 200 , and the other end may be disposed toward the control board 410 .
- a plurality of first cooling passages 710 may be disposed along the outer peripheral surface of the motor unit 300 , and the first cooling passages 710 may be connected through a connection passage 711 .
- the connection passage 711 may alternately connect one side and the other side of the first connection passage 711 to connect the plurality of first cooling passages 710 in series.
- the first cooling passage 710 and the connection passage 711 may be disposed so that the heat exchange medium moving the first cooling passage 710 moves in a zigzag manner.
- the plurality of first cooling passages 710 may be disposed parallel to the neighboring first cooling passages 710 , and the connection passage 711 may be disposed to be perpendicular to the first cooling passage 710 .
- the second cooling passage 720 may cool the controller 400 .
- a heat exchanger 750 may be disposed in the movement line of the heat exchange medium moving the second cooling passage 720 .
- the heat exchanger 750 may perform heat exchange with the filter unit 500 which is a component of the control unit 400 .
- the second cooling passage 720 is disposed inside the heat exchanger 750 so that the heat exchange medium flowing in from the first cooling passage 710 moves inside the heat exchanger 750 , and conducts into contact with the heat exchanger 750 . heat can be absorbed.
- the heat exchanger 750 may absorb heat from the transistor 510 with a high degree of heat generation.
- a cooling cover 900 may be disposed above the heat exchanger 750 .
- the heat exchanger 750 may absorb heat transferred through the cooling cover 900 .
- the heat exchanger 750 may be provided integrally with the cooling cover 900 .
- the cooling cover 900 Since the cooling cover 900 is disposed on the heat exchanger 750, the cooling cover 900 in a state in which the cooling cover 900 and the heat exchanger 750 are integrally provided can reduce the phenomenon that the cooling cover 900 is shaken even by vibration caused by an external force. .
- the cooling cover 900 and the heat exchanger 750 may be integrally formed through injection.
- the cooling cover 900 and the heat exchanger 750 may be coupled through an adhesive member such as an adhesive.
- the second cooling passage 720 may be disposed at the rear of the motor unit 300 . Through this arrangement, it is possible to form a space inside the driving housing 120, and through this, it is possible to secure a space for accommodating the control parts.
- first cooling passage 710 and the second cooling passage 720 are connected in series, and the first cooling passage 710 and the second cooling passage 720 may have overlapping regions.
- One region of the second cooling passage 720 and the first cooling passage 710 may be disposed above and below the filter unit 500 , respectively.
- the first cooling passage 710 may be disposed parallel to the axial direction of the motor unit 300 .
- a plurality of first cooling passages 710 are disposed outside the motor unit 300 and are connected through a connection passage 711 .
- the second cooling passage 720 is disposed to intersect the first cooling passage 710 , and the connection passage 711 to which the first cooling passage 710 is connected forms an area where the second cooling passage 720 overlaps. can be provided Cooling efficiency can be increased through these overlapping regions.
- the second cooling passage 720 may include a 2-1 cooling passage 721 and a 2-2 cooling passage 722 .
- the 2-1 cooling passage 721 may be disposed above the filter unit 500 , and the 2-2 cooling flow path 722 may be disposed below the filter unit 500 .
- the second cooling passage 720 may have a branching structure inside the heat exchanger 750 .
- the heat exchanger 750 includes a first heat exchange passage 751 in which the 2-1 cooling passage 721 is disposed and a second heat exchange passage 752 in which the 2-2 cooling passage 722 is disposed. may include
- the heat exchange medium passing through the first cooling passage 710 flows into the heat exchanger 750 .
- the heat exchange medium flowing into the heat exchanger 750 is branched from one side of the heat exchanger 750 and includes a first heat exchange passage 751 and a 2-2 cooling passage 722 in which the 2-1 cooling passage 721 is disposed. It moves to the second heat exchange passage 752 to be arranged.
- the transistor 510 may be disposed between the first heat exchange passage 751 and the second heat exchange passage 752 .
- the 2-1 cooling passage 721 and the 2-2 cooling passage 722 respectively disposed on the upper and lower portions of the transistor 510 absorb heat generated by the transistor 510, respectively, to increase cooling efficiency. have.
- the upper surface of the 2-2 cooling passage 722 may contact the transistor 510 to cool the transistor 510 , and the lower surface may contact the motor unit 300 and generate in the motor unit 300 . Cooling efficiency can be improved by absorbing and cooling the generated heat.
- the number of the second cooling passages 720 may reduce the overall temperature of the compression unit 200 by adjusting the differential pressure of the cooling passages of the entire compressor to the number of cooling passages passing through the transistor 510 .
- the cooling flow path of the entire air compressor passes through the compression unit 200 to the control unit 400 and the filter unit 500 of the control unit 400 and the transistor ( 510) and the contact surface.
- the first cooling passage 710 for cooling the compression unit 200 and the second cooling passage 720 for cooling the control unit 400 may be connected in series to have a unified cooling passage.
- durability against heat of the transistor 510 may be increased through direct contact with the transistor 510 , which generates a lot of heat.
- 16 is a perspective view of a cover according to an embodiment of the present invention.
- the cooling cover 900 may include a body 910 , a fixing part 920 , a connector fixing part 930 , and a resistance fixing part 940 .
- the body 910 may be disposed above the transistor 510 to cover at least a portion of an upper surface and a side surface of the transistor 510 . In this case, the body 910 may absorb heat generated by the transistor 510 to prevent overheating of the transistor 510 .
- the body 910 may include at least one of aluminum, a synthetic resin material, and steel.
- the fixing part 920 is plural, and each fixing part 920 may extend from the edge of the body 910 .
- the plurality of fixing parts 920 may be formed integrally with the body 910 and made of the same material as the body 910 .
- the plurality of fixing parts 920 may be coupled to the first housing ( 120 in FIG. 2 ) by fastening bolts.
- the connector part fixing part 930 may be disposed on the upper surface 911 of the body 910 .
- the connector part fixing part 930 may fix the connector part 800 passing over the upper side of the cooling cover 900 .
- the connector fixing part 930 may protrude upward from the upper surface of the body 910 , and a fixing hole 931 for inserting the fixing clip 830 may be formed. At this time, the end of the fixing clip 830 may be inserted into the fixing hole 931 to be fixed in motion.
- the resistor fixing part 940 may be coupled to the discharge resistor 1000 . More specifically, the resistor fixing part 940 may be coupled to the first fixing member 1100 for fixing the discharge resistor 1000 .
- the plurality of resistance fixing units 940 may be provided, and the plurality of resistance fixing units 420 may be spaced apart from each other in a first direction (X-axis direction).
- the discharge resistor 1000 may be disposed between the plurality of resistor fixing units 940 spaced apart from each other.
- the separation distance D in the first direction (X-axis direction) between the plurality of resistor fixing parts 940 may be greater than the width of the discharge resistor 100 .
- the cooling cover 900 may have a width WC1 in the first direction (X-axis direction) greater than a width WC2 in the second direction (Y-axis direction).
- cooling passage 710: first cooling passage, 711: connection passage, 720: second cooling passage, 721: 2-1 cooling passage, 722: 2-2 cooling passage, 750: heat exchanger, 751: first heat exchange passage, 752: second heat exchange passage, 800: connector part, 900: cooling cover
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Abstract
Description
Claims (20)
- 하우징;상기 하우징 내부에 배치되는 회전축;상기 회전축과 연결되어 유입 공기를 압축하여 토출하는 압축부;상기 회전축을 구동하는 모터부;상기 모터부를 제어하는 제어기판 및외부 전력의 노이즈를 필터링하여 상기 제어기판에 공급하는 필터부;를 포함하고,상기 하우징은 상기 모터부를 냉각하기 위한 제1 냉각유로와 상기 필터부를 냉각하기 위한 제2 냉각유로를 구비하되, 상기 제1 냉각유로와 상기 제2 냉각유로는 연통되는 것을 특징으로 하는 공기 압축기.
- 제1 항에 있어서,상기 제1 냉각유로는 상기 모터부의 축방향으로 배치되는 것을 특징으로 하는 공기 압축기.
- 제1 항에 있어서,상기 제1 냉각유로는 복수로 마련되는 것을 특징으로 하는 공기 압축기.
- 제3 항에 있어서,복수의 상기 제1 냉각유로는 연결유로를 통해 연결되며,상기 연결유로는 상기 제1 냉각유로를 이동하는 열교환매체가 지그재그로 이동하도록 배치되는것을 특징으로 하는 공기 압축기.
- 제1 항에 있어서,상기 제2 냉각유로는 상기 모터부의 반경 방향을 따라 배치되는 것을 특징으로 하는 공기 압축기.
- 제5 항에 있어서,상기 제2 냉각유로는 상기 필터부의 구성과 열교환을 진행하는 것을 특징으로 하는 공기 압축기.
- 제6 항에 있어서,상기 제2 냉각유로는 열교환기 내부에 배치되는 것을 특징으로 하는 공기 압축기.
- 제7 항에 있어서,상기 열교환기는 적어도 일면에서 열교환이 진행되는 것을 특징으로 하는 공기 압축기.
- 제5 항에 있어서,상기 제2 냉각유로는 상기 모터부의 후방에 배치되는 것을 특징으로 하는 공기 압축기.
- 제1 항에 있어서,상기 제1 냉각유로와 상기 제2 냉각유로는 직렬로 연결되는 것을 특징으로 하는 공기 압축기.
- 제10 항에 있어서,상기 제2 냉각유로와 상기 제1 냉각유로의 일영역은 상기 필터부의 상부 및 하부에 각각 배치되는 것을 특징으로 하는 공기 압축기.
- 제8 항에 있어서,상기 필터부는 트랜지스터를 포함하며,상기 열교환기는 상기 트랜지스터와 열교환이 진행되는 것을 특징으로 하는 공기 압축기.
- 제8 항에 있어서,상기 제2 냉각유로는 제2-1 냉각유로와 제2-2 냉각유로를 포함하는 것을 특징으로 하는 공기 압축기.
- 제13 항에 있어서,상기 제2-1 냉각유로는 상기 필터부의 상부에 배치되고, 상기 제2-2 냉각유로는 상기 필터부의 하부에 배치되는 것을 특징으로 하는 공기 압축기.
- 제14 항에 있어서,상기 열교환기의 일측은 상기 필터부와 열교환을 진행하며, 타측은 상기 모터부와 열교환을 진행하는 것을 특징으로 하는 공기 압축기.
- 제15 항에 있어서,상기 열교환기는 상기 제2-1 냉각유로가 배치되는 제1 열교환통로와 상기 제2-2 냉각유로가 배치되는 제2 열교환통로를 구비하는 것을 특징으로 하는 공기 압축기.
- 제1 항에 있어서,상기 하우징은 임펠러 하우징과 구동하우징을 포함하며,상기 구동하우징에는 상기 모터부가 배치되되,상기 모터부의 상부 양측에는 수용부가 각각 형성되고, 상기 수용부에는 상기 필터부가 배치되는 것을 특징으로 하는 공기 압축기.
- 제17 항에 있어서,상기 수용부 중 적어도 하나는 커넥터부와 연결되는 것을 특징으로 하는 공기 압축기.
- 제1 항에 있어서,상기 모터부는 상기 회전축의 외측에 배치되는 회전자 및상기 회전자의 외측에 배치되는 고정자를 포함하며,상기 고정자는 티스와 티스의 단부에 배치되는 슈를 포함하며,상기 회전자를 바라보는 상기 슈의 단부에는 홈이 상기 티스의 중심선에서 편향되도록 배치되는 공기 압축기.
- 제7 항에 있어서,상기 열교환기에 배치되는 냉각커버를 포함하고,상기 냉각커버와 상기 열교환기는 일체로 마련되는 공기 압축기.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CN202280017025.5A CN116888368A (zh) | 2021-04-12 | 2022-03-30 | 空气压缩机 |
US18/276,668 US20240125334A1 (en) | 2021-04-12 | 2022-03-30 | Air compressor |
DE112022000802.4T DE112022000802T5 (de) | 2021-04-12 | 2022-03-30 | Luftkompressor |
Applications Claiming Priority (4)
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KR10-2021-0047422 | 2021-04-12 | ||
KR20210047422 | 2021-04-12 | ||
KR10-2022-0016032 | 2022-02-08 | ||
KR1020220016032A KR20220141221A (ko) | 2021-04-12 | 2022-02-08 | 공기 압축기 |
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WO2022220452A1 true WO2022220452A1 (ko) | 2022-10-20 |
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PCT/KR2022/004534 WO2022220452A1 (ko) | 2021-04-12 | 2022-03-30 | 공기 압축기 |
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US (1) | US20240125334A1 (ko) |
DE (1) | DE112022000802T5 (ko) |
WO (1) | WO2022220452A1 (ko) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009074517A (ja) * | 2007-09-25 | 2009-04-09 | Sanden Corp | 駆動回路一体型電動圧縮機 |
JP2014058910A (ja) * | 2012-09-18 | 2014-04-03 | Toyota Industries Corp | 車載用電動圧縮機 |
JP2015175343A (ja) * | 2014-03-18 | 2015-10-05 | 大豊工業株式会社 | 流体機械 |
KR20180018176A (ko) * | 2016-08-12 | 2018-02-21 | 한온시스템 주식회사 | 차량용 공기 압축기 |
KR20210038116A (ko) * | 2019-09-30 | 2021-04-07 | 한온시스템 주식회사 | 공기 압축기 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100962903B1 (ko) | 2007-12-12 | 2010-06-10 | 현대자동차주식회사 | 연료전지차량용 통합형 수소재순환블로워 |
-
2022
- 2022-03-30 DE DE112022000802.4T patent/DE112022000802T5/de active Pending
- 2022-03-30 US US18/276,668 patent/US20240125334A1/en active Pending
- 2022-03-30 WO PCT/KR2022/004534 patent/WO2022220452A1/ko active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009074517A (ja) * | 2007-09-25 | 2009-04-09 | Sanden Corp | 駆動回路一体型電動圧縮機 |
JP2014058910A (ja) * | 2012-09-18 | 2014-04-03 | Toyota Industries Corp | 車載用電動圧縮機 |
JP2015175343A (ja) * | 2014-03-18 | 2015-10-05 | 大豊工業株式会社 | 流体機械 |
KR20180018176A (ko) * | 2016-08-12 | 2018-02-21 | 한온시스템 주식회사 | 차량용 공기 압축기 |
KR20210038116A (ko) * | 2019-09-30 | 2021-04-07 | 한온시스템 주식회사 | 공기 압축기 |
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US20240125334A1 (en) | 2024-04-18 |
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