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WO2024053006A1 - Unité extérieure pour climatiseur - Google Patents

Unité extérieure pour climatiseur Download PDF

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Publication number
WO2024053006A1
WO2024053006A1 PCT/JP2022/033536 JP2022033536W WO2024053006A1 WO 2024053006 A1 WO2024053006 A1 WO 2024053006A1 JP 2022033536 W JP2022033536 W JP 2022033536W WO 2024053006 A1 WO2024053006 A1 WO 2024053006A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode wiring
drive board
outdoor unit
negative electrode
positive electrode
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.)
Ceased
Application number
PCT/JP2022/033536
Other languages
English (en)
Japanese (ja)
Inventor
敬太 中野
岳秋 飯田
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to PCT/JP2022/033536 priority Critical patent/WO2024053006A1/fr
Publication of WO2024053006A1 publication Critical patent/WO2024053006A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/22—Arrangement or mounting thereof

Definitions

  • the present disclosure relates to an outdoor unit of an air conditioner that performs air conditioning.
  • the outdoor unit of an air conditioner that performs air conditioning includes a compressor drive board that drives a compressor and a fan drive board that drives an outdoor fan.
  • One such outdoor unit is an outdoor unit that supplies DC power to the compressor drive board and fan drive board from a common power conversion circuit, reducing board area and board manufacturing costs. There is a chance.
  • a compressor drive board steps down a first DC voltage to generate a second DC voltage, and supplies the second DC voltage to a compressor drive circuit and a fan drive circuit. It has a shared power supply circuit that supplies power to the Thereby, the outdoor unit described in Patent Document 1 supplies the output voltage of the shared power supply circuit mounted on the compressor drive board to the fan drive board via the connection wiring.
  • Patent Document 1 an excessive surge voltage is generated on the fan drive board due to the parasitic inductance of the connection wiring that connects the compressor drive board and the fan drive board. Therefore, with the technology of Patent Document 1, it is necessary to increase the withstand voltage of various parts such as the power module and the snubber capacitor arranged on the fan drive board, and there is a problem that the manufacturing cost of the outdoor unit increases. Ta.
  • the present disclosure has been made in view of the above, and aims to provide an outdoor unit of an air conditioner that can reduce the manufacturing cost of the outdoor unit by reducing the surge voltage generated in the fan drive board. purpose.
  • the outdoor unit of the air conditioner of the present disclosure provides heat transfer between the first permanent magnet motor that drives the compressor that compresses the refrigerant, and the outside air and the refrigerant. and a second permanent magnet motor that drives a fan that blows air to the heat exchanger that performs exchange.
  • the outdoor unit of the air conditioner according to the present disclosure includes a compressor drive board that drives the first permanent magnet motor, and a fan drive board that drives the second permanent magnet motor.
  • a first positive terminal that is a positive terminal connected to a compressor drive board and a second positive terminal that is a positive terminal connected to a fan drive board are connected.
  • the positive electrode wiring and the negative electrode wiring are arranged in a first extending direction, which is the extending direction of the positive electrode wiring, which extends from the compressor drive board toward the fan drive board, and in a first extension direction, which is the extension direction of the positive electrode wire, which extends from the compressor drive board toward the fan drive board.
  • the negative electrode wiring is arranged so that the second extending direction, which is the extending direction of the provided negative electrode wiring, is parallel to the second extending direction.
  • the outdoor unit of the air conditioner according to the present disclosure has the effect that the manufacturing cost of the outdoor unit can be kept low by reducing the surge voltage generated in the fan drive board.
  • FIG. 1 is a diagram showing the configuration of an outdoor unit of an air conditioner according to the first embodiment.
  • FIG. 1 shows a circuit diagram of an outdoor unit 101 included in an air conditioner (not shown) and an AC power source 8.
  • the outdoor unit 101 includes at least two permanent magnet motors, at least one compressor drive board, and at least one fan drive board.
  • the outdoor unit 101 includes two permanent magnet motors 1 and 2, one compressor drive board 3, and one fan drive board 4.
  • the permanent magnet motor 1 is a motor that drives a compressor (not shown) that compresses refrigerant.
  • the permanent magnet motor 1 is connected to a compressor drive board 3 and is driven by the compressor drive board 3.
  • the outdoor unit 101 also includes a heat exchanger (not shown) that exchanges heat between the outside air and the refrigerant compressed by the compressor.
  • the permanent magnet motor 2 is a motor that drives a fan (not shown) that blows air to the heat exchanger.
  • the permanent magnet motor 2 is connected to the fan drive board 4 and is driven by the fan drive board 4.
  • Permanent magnet motor 1 is a first permanent magnet motor
  • permanent magnet motor 2 is a second permanent magnet motor.
  • the outdoor unit 101 also includes a positive wiring 5 that is wiring on the positive side, a negative wiring 6 that is wiring on the negative side, and a cable (PN cable) 7 that bundles the positive wiring 5 and the negative wiring 6. There is.
  • the positive wiring 5 connects a positive terminal (positive terminal 20 described later), which is a P terminal connected to the compressor drive board 3, and a positive terminal (positive terminal 22, described later) connected to the fan drive board 4. .
  • the negative electrode wiring 6 connects a negative terminal (negative terminal 21 to be described later) which is an N terminal connected to the compressor drive board 3 and a negative terminal (negative terminal 23 to be described later) to be connected to the fan drive board 4. .
  • the outdoor unit 101 of the first embodiment has a structure in which the cable 7 reduces the parasitic inductance of the positive wiring 5 and the negative wiring 6.
  • the structure of the cable 7 will be described later.
  • the compressor drive board 3 is a board that drives the permanent magnet motor 1, which is the motor of the compressor, and is connected to a single-phase or three-phase AC power source 8.
  • the compressor drive board 3 includes, for example, a rectifier circuit 9 such as a diode bridge, a reactor 10, a rush current prevention resistor 11, a rush current prevention relay 12, and a smoothing capacitor 13.
  • the rectifier circuit 9 is a circuit that rectifies the input AC voltage.
  • a circuit configured using the inrush current prevention resistor 11 and the inrush current prevention relay 12 is an inrush current prevention circuit that prevents inrush current.
  • the compressor drive board 3 includes, for example, a snubber resistor 14, a snubber capacitor 15, and an inverter circuit 16.
  • the fan drive board 4 is a board that drives the permanent magnet motor 2 that is the motor of the fan, and includes, for example, a snubber resistor 17, a snubber capacitor 18, and an inverter circuit 19.
  • the inverter circuits 16 and 19 include an IGBT (Insulated Gate Bipolar Transistor), which is a switching element, and a diode.
  • IGBT Insulated Gate Bipolar Transistor
  • the inverter circuit 16 performs PWM (Pulse Width Modulation) on the DC voltage using the IGBT to generate an AC voltage, and supplies the AC voltage to the permanent magnet motor 1 .
  • the inverter circuit 19 performs PWM on the DC voltage using the IGBT to generate an AC voltage, and supplies the AC voltage to the permanent magnet motor 2 .
  • FIG. 2 is a diagram for explaining the configuration of a cable included in the outdoor unit of the air conditioner according to the first embodiment.
  • the compressor drive board 3 includes a power conversion circuit 35, an inverter circuit 16, and connection lines 30 and 31.
  • the connection line 30 connects the positive side of the power conversion circuit 35 and the positive side of the inverter circuit 16, and the connection line 31 connects the negative side of the power conversion circuit 35 and the negative side of the inverter circuit 16.
  • the power conversion circuit 35 is a circuit that generates output power (DC power) from the input power (AC power) received from the AC power source 8, and is configured to include the rectifier circuit 9 and the reactor 10 described above. .
  • the fan drive board 4 has an inverter circuit 19 and connection lines 32 and 33.
  • the connection line 32 is connected to the positive side of the inverter circuit 16, and the connection line 33 is connected to the negative side of the inverter circuit 16.
  • the cable 7 has a positive wiring 5, a negative wiring 6, positive terminals 20, 22, negative terminals 21, 23, and a fixed tube 24.
  • the positive electrode wiring 5 is connected to positive electrode terminals 20 and 22 such as tab terminals
  • the negative electrode wiring 6 is connected to negative electrode terminals 21 and 23 such as tab terminals.
  • the positive electrode terminal 20 is connected to a positive electrode side connection line 30 that connects the power conversion circuit 35 and the inverter circuit 16 on the compressor drive board 3. Further, the negative electrode terminal 21 is connected to a negative electrode side connection line 31 that connects the power conversion circuit 35 and the inverter circuit 16 on the compressor drive board 3 .
  • the positive electrode terminal 22 is connected to a connection line 32 connected to the positive electrode side of the inverter circuit 19 on the fan drive board 4. Further, the negative electrode terminal 23 is connected to a connection line 33 connected to the negative electrode side of the inverter circuit 19 on the fan drive board 4 .
  • Positive terminal 20 is a first positive terminal
  • positive terminal 22 is a second positive terminal.
  • Negative terminal 21 is a first negative terminal
  • negative terminal 23 is a second negative terminal.
  • the fixed tube 24, which is a tube, is made of an insulator such as polyvinyl chloride or plastic.
  • the fixed tube 24 may be made of any insulating material.
  • the fixed tube 24 is desirably made of a material that is soft enough to facilitate connection between the compressor drive board 3 and the fan drive board 4.
  • the fixed tube 24 has a cylindrical structure.
  • the fixed tube 24 stores the positive electrode wiring 5 and the negative electrode wiring 6 inside the fixed tube 24 . That is, the fixed tube 24 bundles the positive electrode wiring 5 and the negative electrode wiring 6 and passes through the tube in the axial direction.
  • the fixed tube 24 prevents the distance between the positive electrode wiring 5 and the negative electrode wiring 6 from increasing by bundling and storing the positive electrode wiring 5 and the negative electrode wiring 6.
  • the positive electrode wiring 5 and the negative electrode wiring 6 are passed through the fixed tube 24, so that in the cable 7, the distance between the positive electrode wiring 5 and the negative electrode wiring 6 is fixed. This prevents the tube from being separated by more than the inner diameter of the tube 24.
  • the positive electrode wiring 5 and the negative electrode wiring 6 may be in contact with each other.
  • the fixed tube 24 may be formed with a gap, a groove, a hole, or the like.
  • the fixed tube 24 may store a part of the positive electrode wiring 5 and a part of the negative electrode wiring 6 inside the fixed tube 24.
  • the fixed tube 24 stores, for example, 70% or more of the positive electrode wiring 5 and 70% or more of the negative electrode wiring 6.
  • the positive electrode wiring 5 and the negative electrode wiring 6 are arranged in the direction in which the positive electrode wiring 5 extends from the compressor drive board 3 toward the fan drive board 4. (first extension direction) and the extension direction (second extension direction) of the negative electrode wiring 6 extending from the compressor drive board 3 toward the fan drive board 4 are arranged so that they are parallel to each other. has been done.
  • the distance between the positive electrode wiring 5 and the negative electrode wiring 6 is shortened, but currents in opposite directions flow in the positive electrode wiring 5 and the negative electrode wiring 6, and magnetic flux generated by parasitic inductance cancel each other out.
  • the outdoor unit 101 of the first embodiment has a simple structure in which the positive electrode wiring 5 and the negative electrode wiring 6 are passed through the fixed tube 24, and can prevent the distance between the positive electrode wiring 5 and the negative electrode wiring 6 from increasing. It is possible to prevent excessive surge voltage from being generated on the drive board 4.
  • the power conversion circuit 35 and the inrush current prevention circuit are mounted on the compressor drive board 3.
  • a common power conversion circuit 35 and an inrush current prevention circuit are used between the compressor drive board 3 and the fan drive board 4. This eliminates the need to arrange the power conversion circuit 35 and the rush current prevention circuit on the fan drive board 4. Therefore, the board area of the fan drive board 4 can be reduced, and the number of parts mounted on the fan drive board 4 can be reduced, so that the cost when manufacturing the fan drive board 4 can be suppressed.
  • the outdoor unit 101 the positive electrode wiring 5 connecting the compressor drive board 3 and the fan drive board 4, and the negative electrode wiring 6 connecting the compressor drive board 3 and the fan drive board 4 are bundled by the fixed tube 24. ing.
  • the outdoor unit 101 can reduce the parasitic inductance generated in the positive electrode wiring 5 and the negative electrode wiring 6, and can reduce the excessive surge voltage generated on the fan drive board 4 side. Further, since parasitic inductance can be reduced, there is no need to shorten the lengths (wiring lengths) of the positive electrode wiring 5 and the negative electrode wiring 6, and the degree of freedom in routing the positive electrode wiring 5 and the negative electrode wiring 6 is improved.
  • the positive electrode wiring 5 and the negative electrode wiring 6 that connect the compressor drive board 3 and the fan drive board 4 are bundled by the fixed tube 24, so that the fan Surge voltage generated on the drive board 4 can be reduced.
  • the outdoor unit 101 there is no need to shorten the lengths (wiring lengths) of the positive electrode wiring 5 and the negative electrode wiring 6, so that the degree of freedom in routing the wiring for reducing surge voltage is improved.
  • Embodiment 2 Next, Embodiment 2 will be described using FIG. 3.
  • the fixing band tightens the fixing tube 24, so that the positive electrode wiring 5, the negative electrode wiring 6, and the fixing tube 24 are fixed to each other.
  • FIG. 3 is a diagram for explaining the configuration of a cable included in the outdoor unit of the air conditioner according to the second embodiment.
  • components in FIG. 3 components that achieve the same functions as the outdoor unit 101 of Embodiment 1 shown in FIG. 2 are denoted by the same reference numerals, and redundant explanation will be omitted.
  • the outdoor unit 102 of the second embodiment includes a fixing band 25 such as a binding band, for example.
  • the fixing band 25 is made of an insulator such as polyvinyl chloride or plastic.
  • the fixing band 25 may be made of any insulating material.
  • the fixing band 25 is desirably made of a material that is soft enough to allow the fixing band 25 to easily tighten the fixing tube 24.
  • the fixing band 25 is arranged in an annular shape within a plane perpendicular to the extending direction of the fixing tube 24, and the fixing band 25 is tightened to reduce the inner diameter of the annular fixing band 25. 25 presses the outer wall surface of the fixed tube 24.
  • the fixed tube 24 is strongly fixed to the positive electrode wiring 5 and the negative electrode wiring 6.
  • the fixing band 25 can prevent the fixing tube 24 from being biased toward either the compressor drive board 3 side or the fan drive board 4 side.
  • the fixing tube 24 is preferably fixed to the positive electrode wiring 5 and the negative electrode wiring 6 at two or more locations using two or more fixing bands 25.
  • the fixing band 25 and the fixing tube 24 are combined to firmly fix the positive electrode wiring 5, the negative electrode wiring 6, and the fixing tube 24, so that displacement of the fixing tube 24 can be prevented.
  • the fixing band 25 fixes the positive electrode wiring 5, the negative electrode wiring 6, and the fixing tube 24 to each other by tightening the fixing tube 24, thereby preventing the positional shift of the fixing tube 24. It can be prevented. Therefore, the fixed band 25 can prevent the effect of reducing parasitic inductance from decreasing.
  • the fixed tube 24 is wound around a magnetic core formed using a magnetic member.
  • FIG. 4 is a diagram for explaining the configuration of a cable included in the outdoor unit of the air conditioner according to the third embodiment.
  • components in FIG. 4 components that achieve the same functions as the outdoor unit 101 of Embodiment 1 shown in FIG. 2 are designated by the same reference numerals, and redundant explanation will be omitted.
  • the outdoor unit 103 of the third embodiment includes a magnetic core 26 in addition to the components included in the outdoor unit 101 of the first embodiment.
  • the fixed tube 24 of the cable 7 is spirally wound around the outer wall surface of a magnetic core 26 made of, for example, ferrite.
  • the outdoor unit 103 prevents noise generated from the fan drive board 4 from propagating to the compressor drive board 3 and the AC power supply 8.
  • the number of times (number of turns) that the fixed tube 24 wraps around the magnetic core 26 may be one or multiple times. Further, the magnetic core 26 does not need to be fixed within the outdoor unit 103. In the outdoor unit 103, the fixed tube 24 is wound around the magnetic core 26, so the impedance between the positive wiring 5 and the negative wiring 6 increases. This reduces the noise that propagates through the cable 7 and flows from the fan drive board 4 to the compressor drive board 3.
  • the fixed tube 24 is spirally wound around the magnetic core 26, the electronic It is possible to prevent equipment from malfunctioning due to noise generated from the fan drive board 4.
  • the fixed tube 24 is spirally wound around the magnetic core 26, it is possible to prevent the fixed tube 24 from shifting, and to shorten the distance between the positive electrode wiring 5 and the negative electrode wiring 6. Thereby, the parasitic inductance in the positive electrode wiring 5 and the negative electrode wiring 6 and the surge voltage generated on the fan drive board 4 side can be reduced.
  • the positive electrode wiring 5 and the negative electrode wiring 6 are housed in the fixed tube 24, and the fixed tube 24 is wound around the magnetic core 26, so that the noise reduction effect and the surge voltage suppression effect are achieved. Both will improve.
  • Embodiment 4 Next, Embodiment 4 will be described using FIG. 5.
  • the distance between the positive electrode wiring 5 and the negative electrode wiring 6 is shortened by twisting the positive electrode wiring 5 and the negative electrode wiring 6.
  • FIG. 5 is a diagram for explaining the configuration of inter-board wiring included in the outdoor unit of the air conditioner according to the fourth embodiment.
  • the inter-board wiring 40 provided in the outdoor unit 104 of the fourth embodiment is a wiring that connects the compressor drive board 3 and the fan drive board 4.
  • the outdoor unit 104 of the fourth embodiment differs from the outdoor unit 101 of the first embodiment in the structure of the positive electrode wiring 5 and the negative electrode wiring 6. In the outdoor unit 104, the positive electrode wiring 5 and the negative electrode wiring 6 are twisted together.
  • FIG. 5 a portion of the positive electrode wiring 5 and the negative electrode wiring 6 where the positive electrode wiring 5 and the negative electrode wiring 6 are twisted together is illustrated as an inter-board wiring 40.
  • the positive electrode wiring 5 and the negative electrode wiring 6 are arranged in an extending direction (first extending direction) of the twisted positive electrode wiring 5 and an extending direction (second extending direction) of the twisted negative electrode wiring 6. (extension direction) are arranged parallel to each other.
  • the positive electrode wiring 5 and the negative electrode wiring 6 are twisted together, so that the distance between the positive electrode wiring 5 and the negative electrode wiring 6 can be shortened, and the positive electrode wiring 5 and the negative electrode wiring 6 are prevented from becoming separated. can.
  • the positive electrode wiring 5 and the negative electrode wiring 6 are twisted together in the outdoor unit 104, the magnetic fluxes generated by the parasitic inductance of the positive electrode wiring 5 and the negative electrode wiring 6 are canceled out. The effect can be improved.
  • the outdoor unit 104 has a structure in which the positive electrode wiring 5 and the negative electrode wiring 6 are not covered with the fixed tube 24 or the like, heat dissipation from the positive electrode wiring 5 and the negative electrode wiring 6 can be improved.
  • the outdoor unit 104 has a simple structure in which the positive electrode wiring 5 and the negative electrode wiring 6 are twisted together, and can reduce the excessive surge voltage generated on the fan drive board 4. The heat dissipation of No. 6 can be improved.
  • Embodiment 5 Next, Embodiment 5 will be described using FIG. 6.
  • the positive electrode wiring 5 and the negative electrode wiring 6 are fixed to a part of the casing of the outdoor unit (an outdoor unit casing 27 to be described later) and are arranged along the inner wall surface of the outdoor unit casing 27. be done.
  • FIG. 6 is a diagram for explaining the configuration of inter-board wiring included in the outdoor unit of the air conditioner according to the fifth embodiment.
  • the inter-board wiring 41 provided in the outdoor unit 105 of the fifth embodiment is a wiring that connects the compressor drive board 3 and the fan drive board 4.
  • the outdoor unit 105 includes an outdoor unit housing 27 (not shown in the first to fourth embodiments) in which the compressor drive board 3 and the fan drive board 4 are housed. Furthermore, compared to the outdoor unit 101 of the first embodiment, the outdoor unit 105 of the fifth embodiment includes a fixing portion 28.
  • the fixing portion 28 is formed, for example, by processing a part of the outdoor unit casing 27.
  • the fixing portion 28 is made of, for example, the same material as the outdoor unit housing 27 (a conductive member such as a sheet metal). Note that the fixing portion 28 may be formed of a member different from the outdoor unit casing 27 and then attached to the outdoor unit casing 27.
  • the fixing portion 28 is arranged on the inner side surface (inner wall surface) of the outdoor unit casing 27.
  • the fixing part 28 fixes the positive electrode wiring 5 and the negative electrode wiring 6 together to the outdoor unit casing 27.
  • the positive electrode wiring 5 and the negative electrode wiring 6 are fixed to the fixing part 28 at at least one location. That is, in the outdoor unit 105, a part of the positive electrode wiring 5 and a part of the negative electrode wiring 6 are attached to the fixed part 28 in a bundled state (adjacent state) such that the distance between the wires is within a specific distance. Fixed. In the fixed portion 28, a part of the positive electrode wiring 5 and a part of the negative electrode wiring 6 may be in contact with each other.
  • the positive electrode wiring 5 and the negative electrode wiring 6 may be fixed at a plurality of locations by the plurality of fixing parts 28. Also in this case, at each fixing location, a part of the positive electrode wiring 5 and a part of the negative electrode wiring 6 are fixed to the fixing part 28 in a bundled state such that the distance between the wirings is within a specific distance.
  • the positive wiring 5 and the negative wiring 6 are fixed to the fixing part 28 and are arranged in a bundle along the inner side surface of the outdoor unit housing 27.
  • the positive electrode wiring 5 and the negative electrode wiring 6 are arranged in parallel along the inner side surface of the outdoor unit housing 27 and are fixed at the fixing part 28 . That is, the positive electrode wiring 5 and the negative electrode wiring 6 are arranged so that the extending direction of the positive electrode wiring 5 (first extending direction) and the extending direction of the negative electrode wiring 6 (second extending direction) are parallel to each other. In this state, it is arranged along the inner wall surface of the outdoor unit casing 27 and is fixed at the fixing part 28 .
  • the portions of the positive wiring 5 and the negative wiring 6 that are fixed in the fixing portion 28 and the portions arranged along the inner wall surface of the outdoor unit casing 27 are illustrated as inter-board wiring 41. There is.
  • the positive wiring 5 and the negative wiring 6 are fixed and bundled to a fixing part 28 that is a part of the outdoor unit housing 27, so that the distance between the positive wiring 5 and the negative wiring 6 is reduced. You can prevent them from leaving.
  • the potential of the outdoor unit casing 27 of the outdoor unit 105 is grounded, electromagnetic noise propagating from the fan drive board 4 to the inter-board wiring 41 can be released to the outdoor unit casing 27.
  • the positive electrode wiring 5 and the negative electrode wiring 6 are arranged along the outdoor unit housing 27, so that excessive surge voltage generated in the fan drive board 4 can be reduced, and the fan drive board 4
  • the electromagnetic noise generated from the compressor can be released to the outdoor unit casing 27, and the electromagnetic noise can be prevented from propagating to the compressor drive board 3 side and the AC power supply 8 side.
  • the positive electrode wiring 5 and the negative electrode wiring 6 are arranged in a bundle along the inner wall surface of the outdoor unit housing 27, so that, for example, the compressor drive board 3 and the fan drive board 4 can be replaced. Improves work efficiency.
  • the positive electrode wiring 5 and the negative electrode wiring 6 are fixed to a part of the outdoor unit casing 27, and the extending direction of the positive electrode wiring 5 and the extending direction of the negative electrode wiring 6 are It has a structure in which it is arranged along the outdoor unit casing 27 in parallel with the direction.
  • the outdoor unit 105 can reduce excessive surge voltage generated in the fan drive board 4 and electromagnetic noise propagated from the fan drive board 4, and improve workability such as replacing the compressor drive board 3 and the fan drive board 4. can be improved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

La présente invention concerne une unité extérieure (101) conçue pour un climatiseur et comprenant : un moteur à aimant permanent (1) qui entraîne un compresseur ; un moteur à aimant permanent (2) qui entraîne un ventilateur pour souffler de l'air vers un échangeur de chaleur ; un substrat d'entraînement de compresseur (3) qui entraîne le moteur à aimant permanent (1) ; un substrat d'entraînement de ventilateur (4) qui entraîne le moteur à aimant permanent (2) ; un câblage d'électrode positive (5) qui raccorde une borne d'électrode positive (20) raccordée au substrat d'entraînement de compresseur (3) et une borne d'électrode positive (22) raccordée au substrat d'entraînement de ventilateur (4) ; et un câblage d'électrode négative (6) qui raccorde une borne d'électrode négative (21) qui est raccordée au substrat d'entraînement de compresseur (3) et une borne d'électrode négative (23) qui est raccordée au substrat d'entraînement de ventilateur (4). Le câblage d'électrode positive (5) et le câblage d'électrode négative (6) sont agencés de telle sorte que la direction d'extension du câblage d'électrode positive (5) s'étendant à partir du substrat d'entraînement de compresseur (3) vers le substrat d'entraînement de ventilateur (4) et la direction d'extension du câblage d'électrode négative (6) s'étendant à partir du substrat d'entraînement de compresseur (3) vers le substrat d'entraînement de ventilateur (4) sont parallèles l'une à l'autre.
PCT/JP2022/033536 2022-09-07 2022-09-07 Unité extérieure pour climatiseur Ceased WO2024053006A1 (fr)

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PCT/JP2022/033536 WO2024053006A1 (fr) 2022-09-07 2022-09-07 Unité extérieure pour climatiseur

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PCT/JP2022/033536 WO2024053006A1 (fr) 2022-09-07 2022-09-07 Unité extérieure pour climatiseur

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011231964A (ja) * 2010-04-27 2011-11-17 Daikin Industries Ltd 空調機
KR20170068273A (ko) * 2015-12-09 2017-06-19 엘에스산전 주식회사 기생 인덕턴스 감소를 위한 전기 회로 장치, 이를 위한 전원 공급용 전선 및 전선 연결 방법
JP2017133737A (ja) * 2016-01-27 2017-08-03 日立ジョンソンコントロールズ空調株式会社 空気調和機の室外機
JP2018125997A (ja) * 2017-02-02 2018-08-09 日立ジョンソンコントロールズ空調株式会社 空気調和機
JP2019011904A (ja) * 2017-06-30 2019-01-24 日立ジョンソンコントロールズ空調株式会社 空気調和機の室外機、及び空気調和機
JP6851554B1 (ja) * 2020-04-20 2021-03-31 三菱電機株式会社 電力変換装置および空気調和機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011231964A (ja) * 2010-04-27 2011-11-17 Daikin Industries Ltd 空調機
KR20170068273A (ko) * 2015-12-09 2017-06-19 엘에스산전 주식회사 기생 인덕턴스 감소를 위한 전기 회로 장치, 이를 위한 전원 공급용 전선 및 전선 연결 방법
JP2017133737A (ja) * 2016-01-27 2017-08-03 日立ジョンソンコントロールズ空調株式会社 空気調和機の室外機
JP2018125997A (ja) * 2017-02-02 2018-08-09 日立ジョンソンコントロールズ空調株式会社 空気調和機
JP2019011904A (ja) * 2017-06-30 2019-01-24 日立ジョンソンコントロールズ空調株式会社 空気調和機の室外機、及び空気調和機
JP6851554B1 (ja) * 2020-04-20 2021-03-31 三菱電機株式会社 電力変換装置および空気調和機

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