WO2009133678A1 - Unité de substrat pour câblage imprimé et dispositif de congélation - Google Patents

Unité de substrat pour câblage imprimé et dispositif de congélation Download PDF

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Publication number
WO2009133678A1
WO2009133678A1 PCT/JP2009/001877 JP2009001877W WO2009133678A1 WO 2009133678 A1 WO2009133678 A1 WO 2009133678A1 JP 2009001877 W JP2009001877 W JP 2009001877W WO 2009133678 A1 WO2009133678 A1 WO 2009133678A1
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WO
WIPO (PCT)
Prior art keywords
printed wiring
wiring board
terminal
circuit
printed
Prior art date
Application number
PCT/JP2009/001877
Other languages
English (en)
Japanese (ja)
Inventor
鍵村紀雄
堂前浩
土居弘宜
玄田秀司
Original Assignee
ダイキン工業株式会社
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Filing date
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Application filed by ダイキン工業株式会社 filed Critical ダイキン工業株式会社
Publication of WO2009133678A1 publication Critical patent/WO2009133678A1/fr

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    • 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
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0263—High current adaptations, e.g. printed high current conductors or using auxiliary non-printed means; Fine and coarse circuit patterns on one circuit board
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/515—Terminal blocks providing connections to wires or cables
    • 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
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10227—Other objects, e.g. metallic pieces
    • H05K2201/10287—Metal wires as connectors or conductors
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10227—Other objects, e.g. metallic pieces
    • H05K2201/10409—Screws
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
    • H05K2201/10954—Other details of electrical connections
    • H05K2201/10962—Component not directly connected to the PCB

Definitions

  • the present invention relates to a printed wiring board unit configured by mounting a power circuit element of an electric circuit on a printed wiring board, and a refrigeration apparatus provided with the printed wiring board unit. This relates to the electrical connection structure.
  • the terminal pin of the power module is printed wiring. Bonded to the printed wiring (copper foil) of the main circuit on the substrate.
  • an inverter module is used as a power module in a refrigeration system (the refrigeration system includes an air conditioner), and this power module is connected between an external power source and an inverter compressor (drive target). ing.
  • the current supplied from the terminal pin of the power module flows through the copper foil of the main circuit of the printed wiring board and is supplied to the compressor that is the driving target.
  • the power module has been downsized even with a large capacity as the performance of the semiconductor element is improved. For this reason, the distance between terminal pins provided in the power module also tends to be narrowed.
  • Some types are soldered directly to the printed circuit board, but they are rated for large currents of 50 to 100 A. However, the smaller ones have a smaller cross-sectional area of the terminal pins, so the terminals of the module are heated by the heat of the chip inside the module. The pin also gets hot. And the connection part of a printed wiring board and a terminal pin also becomes high heat. As a result, it is considered that the heat resistance temperature of the printed wiring board is exceeded, and then the rated current cannot be used.
  • the cross-sectional area of the printed wiring (copper foil) including the connecting portion is also included.
  • the cross-sectional area of the printed wiring (copper foil) including the connecting portion is also included.
  • the thickness of the copper foil cannot be made extremely thick, so it is necessary to increase the width of the copper foil.
  • Patent Document 1 discloses a configuration in which a terminal block bonded on a printed wiring board is used as a connection member of an electric circuit, and a terminal pin of a power module is screwed to this terminal block.
  • Patent Document 1 a current supplied from a terminal pin flows to a terminal block that is a connection member. If this terminal block is used, the cross-sectional area of the current path can be increased, so that it is considered that the resistance value of the terminal block can be reduced to reduce the amount of heat generation. Moreover, the thing of patent document 1 is related with a screw terminal type module, and since the cross-sectional area of a terminal pin is large, it is thought that heat_generation
  • the terminal block of patent document 1 is solder-joined in the position which contacts the printed wiring (copper foil) of a main circuit, and an electric current flows through the copper foil, since a power module is large sized, copper foil It is possible to widen the width. However, when the module is miniaturized, it is difficult to make the width of the copper foil extremely wide, which becomes a restriction on the design of the printed wiring board. Moreover, if the width of the printed wiring (copper foil) of the main circuit is increased, the printed wiring board itself is also increased in size.
  • a general-purpose printed wiring board has a copper foil thickness of only about 35 ⁇ m, and it is said that only a current of about 1 A can flow through a width of 1 mm. Then, a foil width of about 30 mm and a foil width of about 50 mm are required to pass a current of 50 A.
  • the distance between the terminals of the power module is about 5 to 10 mm in a narrow part. Considering the insulation distance between the terminals, the actual problem is to devise only the wiring pattern and realize a large current. Was impossible.
  • the present invention has been made in view of such a point, and an object of the present invention is to allow a printed wiring board unit in which a power supply system circuit element such as a power module is mounted on a printed wiring board to handle a larger current than before.
  • the configuration is simplified to prevent the unit from becoming large.
  • 1st invention presupposes the printed wiring board unit comprised by mounting the power system circuit element (3) of an electric circuit on a printed wiring board (2).
  • the printed wiring board unit is fixed to the printed wiring board (2) and connected to the terminal pins (3a) of the circuit element (3) and the electrical wiring (8) (10, 20). 30), and the connecting member (10, 20, 30) is attached to the printed wiring board (2) (14, 24, 32, 34) and the terminal pin of the circuit element (3) A terminal connection (11, 21, 31) for connecting (3a) and a wiring connection (12, 22, 32) for connecting the electric wiring (8), wherein the electric circuit is A power system main circuit and a control system circuit are included, and the electrical wiring is the electrical wiring of the power system main circuit.
  • control system circuit is not used literally to mean only the control system circuit, It is used in a broad sense including circuits through which a small current or a minute current flows, such as a control circuit and a drive circuit.
  • the terminal connection portions (11, 21, 31) of the connection members (10, 20, 30) are connected to the terminal pins (3a) of the power circuit element (3) such as the power module (3).
  • the electrical wiring (8) of the power system main circuit is attached to the wiring connection part (12, 22, 32) of the connection member (10, 20, 30), and the attachment part of the connection member (10, 20, 30) Since (14, 24, 32, 34) is attached to the printed wiring board (2), the circuit element (3) is electrically connected to the main circuit of the power supply system via the connecting member (10) and the electric wiring (8).
  • the connecting member (10, 20, 30) may be any member that directly electrically connects the terminal pin (3a) and the electric wiring (8), and the shape can be arbitrarily set.
  • the wiring pattern of the control system circuit is formed on the printed wiring board (2) among the wiring pattern of the power system main circuit and the wiring pattern of the control system circuit.
  • the mounting portion of the connecting member (hereinafter referred to as the first connecting member) (10, 20, 30) is located on the printed wiring board (2) where the wiring patterns are not formed. It is characterized by being attached.
  • the first connecting member (10, 20, 30) is provided with the wiring pattern of the power system main circuit and the wiring pattern of the control system circuit on the printed wiring board (2). It is attached to the part that is not. Therefore, the current of the power circuit element does not flow on the printed wiring pattern.
  • a third invention includes the second connection member (10, 20, 30) in the first invention, and the printed wiring board (2) includes a wiring pattern of a power system main circuit and a control circuit.
  • the wiring patterns at least a wiring pattern of the control circuit is formed, and the mounting portion of the second connection member (10, 20, 30) is connected to the printed circuit board (2).
  • the wiring pattern is attached to a portion where the wiring pattern is formed.
  • the first connecting member (10, 20, 30) is attached to the printed wiring board (2) at a portion where neither the wiring pattern of the power system main circuit nor the wiring pattern of the control circuit is formed.
  • the second connecting member (10, 20, 30) is attached to the printed wiring board (2) at a portion where the wiring pattern of the control circuit is formed.
  • a fourth invention includes the third connection member (10, 20, 30) in the first invention, and the printed wiring board (2) includes a wiring pattern of a power system main circuit and a driving circuit.
  • the wiring patterns at least a wiring pattern of the driving circuit is formed, and the mounting portion of the third connecting member (10, 20, 30) is connected to the printed circuit board (2) with respect to the driving circuit.
  • the wiring pattern is attached to a portion where the wiring pattern is formed.
  • the first connecting member (10, 20, 30) is attached to the printed wiring board (2) at a portion where neither the wiring pattern of the power system main circuit nor the wiring pattern of the driving circuit is formed.
  • the third connecting member (10, 20, 30) is attached to the printed wiring board (2) at the portion where the wiring pattern of the driving circuit is formed.
  • a fourth connection member (10, 20, 30) to which the electric wiring (8) is not connected is provided, and the printed circuit board (2) includes a power supply main circuit. And the wiring pattern of the control system circuit are formed, and the mounting portion of the fourth connection member (10, 20, 30) is connected to the printed circuit board (2) of the power system main circuit. It is characterized in that it is attached to a portion where a wiring pattern is formed.
  • the first connecting member (10, 20, 30) is attached to the printed wiring board (2) at a portion where neither the power source main circuit wiring pattern nor the driving circuit wiring pattern is formed.
  • the fourth connecting member (10, 20, 30) is attached to the printed wiring board (2) at a portion where the wiring pattern of the power system main circuit is formed.
  • the terminal connection portions (11, 21, 31) are portions formed in a plate shape, and the printed wiring board (2 ) Is formed at a position corresponding to the hole (2c).
  • the terminal of the circuit element (3) is connected to the terminal connection portion (11, 21, 31) disposed at a position corresponding to the hole (2c) formed in the printed wiring board (2).
  • the pin (3a) is joined, the electrical connection (8) is connected to the wiring connection (12, 22, 32), and the current from the circuit element (3) passes through the connection member (10, 20, 30). Flow to electrical wiring (8).
  • the seventh invention is characterized in that, in the sixth invention, the terminal connecting portions (11, 21, 31) are formed so as to be positioned in the hole (2c).
  • the terminal pins (11) of the circuit element (3) are connected to the terminal connection portions (11, 21, 31) disposed in the holes (2c) formed in the printed wiring board (2). 3a) is joined, the electrical wiring (8) is connected to the wiring connection (12, 22, 32), and the current from the circuit element (3) passes through the connection member (10, 20, 30). Go to (8).
  • the terminal connecting portion (11, 21, 31) is formed so as to be positioned in parallel with the printed wiring board (2) outside the hole (2c). It is characterized by having.
  • the terminal pin (3a) of the circuit element (3) is joined, and the electrical wiring (8) is connected to the wiring connection part (12, 22, 32), and the current from the circuit element (3) is connected to the connecting member (10, 20 and 30) to the electrical wiring (8).
  • the terminal connection part (11) provided in a connection member (10, 20, 30) can be formed in arbitrary positions in the state parallel to a printed wiring board (2).
  • the terminal connecting portion (11, 21, 31) solders and joins the terminal pin (3a) of the circuit element (3). Terminal soldering joints (11a, 21a, 31a).
  • the terminal pin (3a) of the circuit element (3) such as the power module (3) is soldered to the terminal connecting portion (11, 21, 31) of the connecting member (10, 20, 30). Be joined.
  • the attachment portion (14, 24, 32, 34) is formed in the printed wiring board (2).
  • a leg portion (14) having a fixing claw (14b) to be inserted into the printed wiring board (2) and soldered to the printed wiring board (2) as the attachment portion, and the terminal connection portion (11) is the leg portion (14) Are connected to each other through a bent portion (14a).
  • the connecting members (10, 20, 30) are joined to the printed wiring board (2) by the fixing claws (14b). Therefore, by attaching the first connecting member (10, 20, 30) to a place where the printed wiring pattern is not formed, it is possible to ensure a state in which no current flows through the printed wiring pattern.
  • the “state where no current flows” here means that a large current of the main circuit for power supply is prevented from flowing to the printed wiring board (2), and the circuit such as the power module (3) Since a control signal (weak current) such as a drive signal for the element (3) is necessary to drive the power module (3), it does not mean that the control signal does not flow. This is as described above.
  • a wiring pattern for use in a control power supply that does not flow a large current in the main circuit (a wiring pattern for a control system circuit (including a wiring pattern for a driving circuit)) or a power module (3)
  • parts that do not carry a large current such as capacitors for protection, snubber circuits, varistors, etc., are connected to this terminal, thus connecting members (10, 20, 30) are connected to the control system circuit. What is attached may be used, and a weak current of the control system circuit may be passed through the printed wiring board (2).
  • the terminal pin (3a) of the circuit element (3) is connected to the terminal connection part (11) formed by bending the member with respect to the leg part (14), and the terminal pin of the circuit element (3) A current flows from (3a) through the connecting member (10) to the electric wiring (8) connected to the wiring connecting portion (12).
  • the wiring connection portion (12, 22, 32) is a wiring attachment portion for attaching the electric wiring (8) with the attachment member (9). (12b, 26a, 32a).
  • a wiring screw fastening portion for attaching the electrical wiring (8) to the wiring connection portion (12, 22, 32) with a mounting screw as the mounting member (9) is provided as the wiring mounting portion (12b, 26a, 32a).
  • electric wiring (12b, 26a, 32a) such as a wiring screwing portion provided in the wiring connecting portion (12, 22, 32) of the connecting member (10, 20, 30) 8) is attached with attachment members (9) such as attachment screws.
  • a twelfth aspect of the invention is characterized in that, in any one of the first to twelfth aspects of the invention, the entire connection member (10) is formed of a bent molded part made of a single conductive metal plate material. It is said.
  • the thirteenth invention is characterized in that, in any one of the first to twelfth inventions, the circuit element (3) is a power module.
  • connection member (10, 20, 30) and the circuit element (3) are arranged on different surfaces of the printed wiring board (2). It is characterized by being.
  • connection member (10, 20, 30) and the circuit element (3) are arranged on the same surface of the printed wiring board (2). It is characterized by having.
  • connection member (10, 20, 30) and the circuit element (3) are disposed on the same surface even when they are disposed on different surfaces of the printed wiring board (2). Even if it is, the current of the main circuit can be supplied from the circuit element (3) to the drive target without passing through the copper foil of the printed board.
  • the sixteenth invention is premised on a refrigeration apparatus including a printed wiring board unit (1) in which a circuit element (3) is mounted on a printed wiring board (2).
  • this refrigeration apparatus is characterized in that the printed wiring board unit (1) is constituted by the printed wiring board unit according to any one of claims 1 to 15.
  • connection members (10, 10) are connected from the circuit element (3) to the electric wiring (8) as in the first to fifteenth inventions. 20 and 30) can supply the current of the main circuit.
  • the terminal connection portion (11, 21, 31) of the connection member (10, 20, 30) is connected to the terminal pin (3a) of the power system circuit element (3), and the connection member (11, By attaching the electrical wiring (8) to the wiring connection part (12, 22, 32) of 21 and 31), the circuit element (3) can connect the connection member (10, 20, 30) and the electrical wiring (8).
  • the power supply system is electrically connected to the main circuit. it can. Therefore, it is not necessary to increase the thickness or width of the copper foil of the printed wiring board (2), and it is not necessary to provide heat radiating fins on the wiring pattern. Therefore, it is possible to cope with a large current without increasing the cost.
  • the shape of the connection member (10, 20, 30) is arbitrary.
  • the first connection member (10, 20, 30) is formed on the printed wiring board (2) with the wiring pattern of the power system main circuit and the wiring pattern of the control system circuit formed thereon.
  • the current of the power supply system circuit element does not flow on the printed wiring pattern. Therefore, it is not necessary to increase the thickness or width of the copper foil of the printed wiring board (2), and it is not necessary to provide heat radiating fins on the wiring pattern. Therefore, it is possible to cope with a large current without increasing the cost.
  • the first connecting member (10, 20, 30) is a portion in which neither the wiring pattern of the power system main circuit nor the wiring pattern of the control system circuit is formed on the printed wiring board (2).
  • the second connection member (10, 20, 30) is attached at a portion where the wiring pattern of the control circuit is formed on the printed wiring board (2).
  • the current of the main circuit of the power supply system does not flow through the wiring pattern
  • the second connection member (10, 20, 30) the current on the wiring pattern of the control circuit is small. A very small current will flow. Since only a small or very small current flows through the wiring pattern of the control circuit, there is no need to increase the thickness or width of the copper foil on the printed circuit board (2).
  • first connecting member (10, 20, 30) and the second connecting member (10, 20, 30) can be properly used according to the application.
  • the first connecting member (10, 20, 30) is a portion where neither the wiring pattern of the power system main circuit nor the wiring pattern of the driving circuit is formed on the printed wiring board (2).
  • the third connecting member (10, 20, 30) is attached at a portion where the wiring pattern of the driving circuit is formed on the printed wiring board (2).
  • the first connecting member (10, 20, 30) and the third connecting member (10, 20, 30) can be properly used according to the application.
  • the first connecting member (10, 20, 30) is a portion where neither the wiring pattern of the power system main circuit nor the wiring pattern of the driving circuit is formed on the printed wiring board (2).
  • the fourth connecting member (10, 20, 30) is attached at a portion where the wiring pattern of the power system main circuit is formed on the printed wiring board (2).
  • the connection member (10, 20, 30) can be divided into a use for flowing the current of the power supply main circuit through the electric wiring and a use for flowing through the printed wiring pattern.
  • the circuit element (3) is connected to the terminal connection portion (11, 21, 31) disposed at a position corresponding to the hole (2c) formed in the printed wiring board (2).
  • the terminal pin (3a) is joined, the electrical wiring (8) is connected to the wiring connection (12, 22, 32), and the current from the circuit element (3) is connected to the connection member (10, 20, 30).
  • the terminal connection (11, 21, 31) is located at a position corresponding to the hole (2c) of the printed wiring board (2), and the terminal connection (11, 21, 31) is exposed to the surrounding air. Therefore, the heat radiation from the connection member (10, 20, 30) is promoted.
  • a printed wiring board material having a low heat resistant temperature can be used.
  • the terminal of the circuit element (3) is connected to the terminal connection part (11, 21, 31) disposed in the hole (2c) formed in the printed wiring board (2).
  • the pin (3a) is joined, the electrical connection (8) is connected to the wiring connection (12, 22, 32), and the current from the circuit element (3) passes through the connection member (10, 20, 30). Flow to electrical wiring (8).
  • the terminal connection (11, 21, 31) is placed in the hole (2c) of the printed wiring board (2) so that the terminal connection (11, 21, 31) is exposed to the surrounding air. Since it can be configured, heat dissipation from the connecting members (10, 20, 30) is promoted.
  • the terminal connection portions (11, 21, 31) arranged in parallel with the printed wiring board (2) outside the hole (2c) formed in the printed wiring board (2).
  • the terminal pin (3a) of the circuit element (3) is joined, the electrical wiring (8) is connected to the wiring connection part (12, 22, 32), and the current from the circuit element (3) is connected to the connecting member ( It flows to the electrical wiring (8) through 10, 20, 30).
  • the terminal connection (11, 21, 31) is placed outside the hole (2c) of the printed circuit board (2) so that the terminal connection (11, 21, 31) is exposed to the surrounding air. Since it can be configured, heat dissipation from the connecting members (10, 20, 30) is promoted.
  • the terminal connection parts (11, 21, 31) provided on the connection members (10, 20, 30) can be formed in any position in parallel with the printed wiring board (2), so one sheet Even when a plurality of power modules (3) are connected to the printed wiring board (2) and the heights of the modules are different, it is possible to easily cope with them.
  • the terminal pin (3a) of the circuit element (3) such as the power module (3) is soldered to the terminal connection portion (11, 21, 31) of the connection member (10, 20, 30). Since joining is performed by attaching, for example, the joining portion can be reduced in size compared to joining using screws. Therefore, the printed wiring board unit can be downsized as a whole. In addition, since the terminal pins are soldered to the connecting members (10, 20, 30), the electrical resistance is small and the temperature rise can be suppressed even with a large current.
  • a large current is generated on the copper foil of the printed wiring board (2) by joining the first connecting member (10) to the printed wiring board (2) with the fixing claws (14b). It can be easily prevented from flowing.
  • the leg part (14) which comprises the wiring connection part (12) of a connection member (10) is fixed in the state raised from the printed wiring board. For this reason, the wiring connection part (12) is in a state of hardly contacting the printed wiring board (2). Therefore, even when the connection member (10) generates heat due to current flowing, heat can be efficiently released from the wiring connection part (12).
  • the terminal connecting portion (11) is formed by bending the member with respect to the leg portion (14), the terminal connecting portion (11) can be easily formed on the connecting member (10).
  • the wiring attachment portions (12b, 26a, 32a) such as the wiring screw fastening portions provided in the wiring connection portions (12, 22, 32) of the connection members (10, 20, 30) are electrically connected. Since the wiring (8) is mounted by the mounting member (9) such as a mounting screw, the connection between the connecting member (10, 20, 30) and the electrical wiring (8) can be ensured.
  • connection member (10 having the terminal connection portion (11, 21, 31) and the wiring connection portion (12, 22, 32) by bending one conductive metal plate material. , 20, 30) can be formed easily.
  • the terminal connection portions (11, 21, 31) of the first connection member (10, 20, 30) are connected to the terminal pins (3a) of the power module (3), and the first The electric wiring (8) is attached to the wiring connecting portions (12, 22, 32) of the one connecting member (10, 20, 30), and the first connecting member (10, 20, 30) is further attached to the printed wiring board ( By attaching to 2), the current supplied from the power module (3) is supplied to the drive target via the first connecting member (10, 20, 30) and the electric wiring (8). Therefore, it is not necessary to increase the thickness or width of the copper foil in a portion where the space on the printed wiring board (2) is small, and it is not necessary to provide a radiation fin (11b) on the wiring pattern. Further, it is possible to cope with a large current without increasing the size of the printed wiring board unit, and it is possible to prevent an increase in cost.
  • connection member (10, 20, 30) and the circuit element (3) are arranged on different surfaces of the printed wiring board (2), they are on the same surface. Even when it is arranged, it is possible to realize a configuration in which the current of the main circuit can be supplied to the drive target without passing through the copper foil of the printed circuit board from the circuit element (3).
  • the connecting member (3) is connected to the electric wiring (8) from the circuit element (3) as in the first to fifteenth aspects of the invention.
  • the current of the main circuit can be supplied via 10, 20, 30).
  • FIG. 1 is a plan view of a printed wiring board unit according to Embodiment 1 of the present invention.
  • FIG. 2 is an enlarged perspective view of the terminal block.
  • FIG. 3 is a side view showing the main part of FIG.
  • FIG. 4 is a block diagram showing a circuit configuration of the printed wiring board.
  • FIG. 5 is a plan view showing the connection position relationship between the power module and the terminal block.
  • FIG. 6 is a plan view of the periphery of the terminal block in the printed wiring board unit of FIG.
  • FIG. 7 is a refrigerant circuit diagram of an air conditioner including a control device including the printed wiring board unit of FIG.
  • FIG. 8 is a side view of the printed wiring board unit according to the first modification.
  • FIG. 9 shows a second modified example, FIG.
  • FIG. 9A is a plan view of the terminal block, and FIG. 9B is a side view.
  • FIG. 10 is an enlarged perspective view of a terminal block according to a third modification.
  • FIG. 11 is a side view showing a connection structure using a terminal block according to a fourth modification.
  • 12A and 12B show a terminal block according to the second embodiment.
  • FIG. 12A is a cross-sectional view of a main part in a connected state
  • FIG. 12B is a plan view.
  • 13A and 13B show a terminal block according to a modification of the second embodiment.
  • FIG. 13A is a cross-sectional view of a main part in a connected state
  • FIG. 13B is a plan view.
  • 14A and 14B show a terminal plate according to the third embodiment.
  • FIG. 14A is a cross-sectional view of a main part in a connected state
  • FIG. 14B is a plan view
  • 15A and 15B show a terminal plate according to Modification 1 of Embodiment 3
  • FIG. 15A is a cross-sectional view of a principal part in a connected state
  • FIG. 15B is a plan view
  • 16A and 16B show a terminal plate according to Modification 2 of Embodiment 3
  • FIG. 16A is a cross-sectional view of a main part in a first connection state
  • FIG. 16B is a cross-sectional view of a main part in a second connection state
  • FIG. 16C is a plan view.
  • FIG. 17 shows a terminal board according to Modification 3 of Embodiment 3
  • FIG. 17 (A) is a cross-sectional view of a principal part in a connected state
  • FIG. 17 (B) is a plan view
  • 18A and 18B show a terminal plate according to Modification 4 of Embodiment 3
  • FIG. 18A is a cross-sectional view of the main part
  • FIG. 18B is a plan view
  • FIG. 19 shows a terminal plate according to the fourth embodiment
  • FIG. 19A is a cross-sectional view of a main part in a connected state
  • FIG. 19B is a plan view
  • FIG. 20 shows a terminal board according to Modification 1 of Embodiment 4
  • FIG. 20 (A) is a cross-sectional view of a principal part in a connected state
  • FIG. 20 (B) is a plan view.
  • FIG. 21A and 21B show a terminal plate according to Modification 2 of Embodiment 4, FIG. 21A is a cross-sectional view of the main part, and FIG. 21B is a plan view. 22A and 22B show a terminal plate according to Embodiment 5, FIG. 22A is a partial cross-sectional view in a connected state, and FIG. 22B is a plan view.
  • FIG. 23 is a graph showing the relationship between the dimension of the connecting member and the temperature rise.
  • Embodiment 1 of the Invention A first embodiment of the present invention will be described.
  • This Embodiment 1 is related with the printed wiring board unit used for the control apparatus of a freezing apparatus (air conditioning apparatus).
  • FIG. 1 is a plan view of the printed wiring board unit (1).
  • This printed wiring board unit (1) is connected to the printed wiring board (2) with power system circuit elements such as power modules (inverter modules connected to an external power source) (3) and other electronic components (4, 5, 6, It is configured by implementing 7). Since the power module (3) is located on the back side of the figure with respect to the printed wiring board (2), there is actually a part that becomes a broken line, but in the figure, it is represented by a solid line for convenience.
  • the electronic components (4, 5, 6, 7) on the printed wiring board (2) include a CPU (central processing unit) (4), a transformer (5), a capacitor (6), and connectors (7 ) Etc. are included.
  • the terminal pin (3a) of the power module (3) penetrates the printed wiring board (2) and extends upward (front side in the figure).
  • This printed wiring board unit (1) has a terminal block (10) fixed to the printed wiring board (2).
  • the terminal block (10) includes a terminal pin (3a) of the power module (3) protruding upward from the printed wiring board (2) and an electric wiring (8) shown in FIG. 3 which is a side view of the main part of FIG. And are configured to be connected.
  • this terminal block (10) mainly connects the power circuit element (in this example, the power module (3)) with the printed wiring board (2) and the electrical wiring (8). It is a connecting member for use.
  • the connecting member for connecting the circuit element (power module) (3) of the electric circuit including the printed wiring board (2) and the electric wiring (8) is formed in the shape of the terminal block (10) ( It is formed in the shape of a “U” when viewed from the side, with the bottom open.
  • the terminal block (10) includes a terminal connection part (11) for directly connecting the terminal pin (3a) of the power module (3), and an electric wiring (8). And a wiring connection part (12) for connecting the two.
  • FIG. 2 is an enlarged perspective view, and the actual size of the terminal block (10) is a component having a size of about 10 mm ⁇ 10 mm when the wiring connection portion (12) is viewed from the plane.
  • the wiring connecting portion (12) is fixed to the printed wiring board (2) by extending downward in a direction perpendicular to the pedestal plate (13) from the pedestal plate (13) and the base plate (13). And a pair of legs (14).
  • the leg portion (14) refers to a substrate portion (2a) in the printed wiring board (2) (in this embodiment, the substrate portion (2a) refers to a portion where no printed wiring (copper foil) is provided. In FIG. 1, the wiring pattern of the copper foil is omitted).
  • FIG. 4 is a block diagram showing the circuit configuration of the printed wiring board (2).
  • the printed circuit board (2) is provided with a power supply circuit (100), an air conditioner control circuit (101), an inverter control circuit (102), a drive circuit (103, 104), and an inverter module (power module) (105). It has been.
  • An inverter module (105) is connected between the power source (106) and the compressor (107) (corresponding to the refrigerant circuit compressor (52) of FIG. 7 described later).
  • the inverter module (105) is configured by internally connecting various electronic components including a chip.
  • the internal wiring (111) for connecting the electronic components in the inverter module (105).
  • FIG. 5 is a plan view showing the connection position relationship between the power module (3) and the terminal block (10), and the symbols A to D in the figure correspond to the symbols A to D shown in FIG. .
  • the terminal block (10) can be classified into four types A to D.
  • the first terminal block indicated by symbol A is a terminal block (10A) that allows the current of the main circuit to flow only through the electric wire (110), and the second terminal blocks indicated by symbols B1 to B4 are large in the main circuit.
  • a terminal block (10B) connected to a low-current wiring pattern (108) such as a drive circuit (103, 104) and a snubber circuit, as well as flowing current through the electric wire (110), is indicated by symbols C1, C2.
  • the third terminal block is a terminal block (10C) connected to the control low current wiring pattern (109) of the electric wire (110) and the power supply circuit (100), and the fourth terminal indicated by symbols D1 and D2.
  • the base is a terminal block (10D) connected to the wiring pattern (112) through which a large current flows in the power supply main circuit (100) without being connected to the electric wire.
  • the drive circuit (103, 104) shows only one of the three arms, and the others are omitted. Thus, the terminal block (10) can be used for various applications.
  • the terminal block (10D) indicated by symbols D1 and D2 is connected to the wiring pattern (112) through which a large current flows in the power supply main circuit (100).
  • the width of the printed wiring pattern) can be widened, so that heat generation can be suppressed even when a current is passed through the printed wiring pattern.
  • the terminal blocks indicated by A, B1 to B4, C1, and C2 connect the terminal pin (3a) of the power module (3) and the electrical wiring (8). Except for the table A, the wiring patterns of the control circuit and the drive circuit are connected. Regarding these terminal blocks, the current of the drive system main circuit flows from the power module (3) through the terminal block (10) to the electrical wiring (8), and only a very small current flows through the copper foil. Therefore, the problem that the copper foil becomes high temperature and the influence of heat on the substrate (2) becomes large does not occur.
  • the terminal block (10) is formed by bending a metal plate material, and since the cross-sectional area of the current flowing portion can be increased, the current flows on the printed wiring pattern (copper foil). Compared to this, the amount of heat generation is reduced, and the influence of heat on the printed circuit board (2) is also reduced.
  • the current supplied from the power module (3) mainly flows through the electrical wiring (8) via the terminal block (10) and is supplied to the driving device.
  • the terminal blocks D1 and D2 have a large cross-sectional area of the copper foil, there is no problem of heat generation, so that a current flows through the wiring pattern.
  • the terminal block is used properly according to the application.
  • the terminal block (10) is composed of a bent molded part made of one conductive metal plate material.
  • the wiring connection part (12) of the terminal block (10) is formed in a square or rectangular shape when viewed from above.
  • the leg portion (14) is formed by bending downward at an angle of about 90 degrees from the pair of opposing edge portions of the base plate (13) of the wiring connection portion (12) through the bent portion (12a). .
  • the bent portion (12a) is a right-angled corner in the figure, it is actually a slight rounded surface (curved surface).
  • the terminal connecting part (11) is opposite to the leg part (left leg part in the figure) (14) opposite to the lower end of one leg part (right leg part in the figure) (14). It extends in the direction and is formed so as to be substantially parallel to the wiring connection portion (12).
  • the said wiring connection part (12) is comprised by the base shape, and the said terminal connection part (11) is extended in plate shape from the wiring connection part (12).
  • the terminal connection part (11) is connected to the leg part (14) via a bent part (14a).
  • the terminal block (10) is parallel to the printed wiring board (2) with the terminal block (10) attached to the printed wiring board (2).
  • the distance between the terminal connection part (11) and the printed wiring board (2) is set to a predetermined dimension. That is, according to this configuration, the terminal connection portion (11) can be manufactured by changing the position up and down in the figure while maintaining parallel to the printed wiring board (2).
  • the predetermined dimension in this embodiment is substantially zero, and the terminal connection portion (11) has a printed wiring board (FIG. 3) and a printed wiring board (FIG. 6) which is a plan view around the terminal block. It is configured to be placed in the hole (2c) formed in 2). By forming this hole (2c), the upper surface of the terminal connection portion (11) is exposed on the upper surface side of the printed wiring board (2), and the terminal connection portion ( The lower surface of 11) is exposed. Thereby, the heat dissipation effect is promoted.
  • the terminal connection portion (11) is a plate-shaped portion, and is formed at a position corresponding to the hole (2c) of the printed wiring board (2). Yes. More specifically, the terminal connection portion (11) is formed so as to be positioned in the hole (2c). By doing so, the circuit element is connected to the terminal connection part (11) arranged at the position corresponding to the hole part (2c) formed in the printed wiring board (2) (position in the hole part (2c)).
  • the terminal pin (3a) of (3) is joined, the electric wiring (8) is connected to the wiring connection part (12), and the current from the circuit element (3) is connected to the connection member (first, second, third Through the connecting members (10a, 10b, 10c)) to the electrical wiring (8).
  • the female thread portion (12b) is burring processed as shown in FIG. It is formed in the part (12c).
  • the burring portion (12c) may be replaced with a configuration in which a nut is welded or a nut is crimped and fixed.
  • the female screw portion (12b) is fastened with a retaining screw (9) via a washer (9a), and the electric wiring (8) is sandwiched between the upper surface of the wiring connection portion (12) and the washer (9a). It is supposed to be held in the state.
  • the wiring connection part (12) of the terminal block (10) has the wiring screw fastening part (female screw part: wiring) for attaching the electrical wiring (8) with the mounting screw (fastening screw: mounting member) (9). (Mounting part) (12b).
  • the electrical wiring (8) may be attached to the wiring connection part (12) by a method using other than the retaining screw (9).
  • the leg part (14) is a fixing claw (first solder joint) for fixing the terminal block (10) to a predetermined mounting position on the board part (2a) of the printed wiring board (2) by soldering ( 14b) and functions as an attachment for attaching the terminal block (10) to the printed wiring board (2).
  • Two fixed pawls (14b) are formed on the opposing leg (14), and are attached to the predetermined mounting positions on the printed wiring board (2) at positions corresponding to the fixed claws (14b).
  • a hole (2b) is formed (see FIG. 3).
  • the fixing claw (14b) is formed to have a length protruding downward from the mounting hole (2b) while being inserted into the mounting hole (2b) from above, and protrudes downward from the printed wiring board (2). The part is soldered to the lower surface of the printed circuit board (2).
  • the two fixing claws (14b) of the leg part (14) where the terminal connection part (11) is not formed are provided with a convex part (14c) in order to provide a retaining function and a positioning function for the printed circuit board (2). Is formed.
  • these fixed claws (14b) are formed so that the base end portion that fits into the mounting hole (2b) has a larger diameter than the tip end portion protruding from the mounting hole (2b). It is configured to be press-fitted into the mounting hole (2b).
  • two fixed claws (14b) are provided, but one may be provided, or three or more may be provided.
  • the fixing claw (14b) is formed at a predetermined distance from the bent portion (14a) or the terminal connecting portion (11).
  • a solder repellent space (10 s) is provided so that a land for the solder (16) indicated by can be provided around the fixed claw (14b).
  • the solder relieving space (10s) is “the hole (2c) formed in the printed wiring board (2) for placing the terminal connection part (11)” and the “mounting hole of the fixing claw (14b)”.
  • (2b) is a space for the printed wiring board (2) to exist in the gap between the two. This solder avoidance space is formed in the vicinity of the bent portion.
  • the terminal connection portion (11) is formed with a terminal pin insertion hole (11a) at a position near the tip for inserting the terminal pin (3a) of the power module (3).
  • a terminal pin (3a) that is inserted into the terminal pin insertion hole (11a) and protrudes upward is joined to the terminal connection portion (11) by soldering.
  • the 2nd soldering junction part (terminal soldering junction part) for joining the terminal pin (3a) of a power module (3) is comprised by the terminal pin insertion hole (11a) of the said terminal connection part (11). Has been.
  • FIG. 3 is a side view showing the main part of FIG. 1, and shows a connection structure of the printed wiring board (2), the power module (3) (semiconductor module), and the terminal block (10).
  • a heat radiating fin (15) is connected to the power module (3).
  • the leg part (14) of the terminal block (10) is connected to the back surface of the board part (2a) of the printed wiring board (2) by soldering.
  • the terminal pin (3a) is inserted into the terminal pin insertion hole (11a) and the terminal pin (3a) is moved upward from the terminal pin insertion hole (11a).
  • the terminal pin (3a) and the terminal connection part (11) are joined by soldering.
  • the terminal block (10) is disposed on the upper surface of the printed wiring board (2)
  • the power module (3) is disposed on the lower surface of the printed wiring board (2).
  • the terminal block (10) and the power module (3) are arranged on different surfaces of the printed wiring board (2).
  • FIG. 7 is a refrigerant circuit diagram of the air conditioner (50).
  • the refrigerant circuit (51) of the air conditioner (50) includes a compressor (52), an outdoor heat exchanger (heat source side heat exchanger) (53), an electronic expansion valve (expansion mechanism) (54), An indoor heat exchanger (use side heat exchanger) (55) and a four-way switching valve (56) are provided and connected by a refrigerant pipe to form a closed circuit.
  • the compressor (52) is composed of a variable capacity compressor capable of adjusting the operation capacity by inverter control of the electric motor.
  • the discharge side of the compressor (52) is connected to the first port (P1) of the four-way switching valve (56).
  • the second port (P2) of the four-way selector valve (56) is connected to the gas side end of the outdoor heat exchanger (53), and the liquid side end of the outdoor heat exchanger (53) is the electronic expansion valve (54). Is connected to the liquid side end of the indoor heat exchanger (55).
  • the gas side end of the indoor heat exchanger (55) is connected to the third port (P3) of the four-way switching valve (56).
  • the fourth port (P4) of the four-way switching valve (56) is connected to the suction side of the compressor (52).
  • the four-way selector valve (56) is in the first position (solid line in FIG. 7) where the first port (P1) and the second port (P2) communicate and the third port (P3) and the fourth port (P4) communicate. Switch to the second position (see the broken line in FIG. 7) where the first port (P1) and the third port (P3) communicate and the second port (P2) and the fourth port (P4) communicate. It is configured to be able to.
  • the control device (58) of the air conditioner (50) is configured to start / stop the compressor (52), control the capacity by an inverter, adjust the opening of the electronic expansion valve (54), and the like. .
  • the power module (inverter module) (3) supplies a large current for driving the compressor.
  • the four-way switching valve (56) is switched to the first position indicated by the solid line in FIG. 7 to start the compressor (52).
  • the compressor (52) sucks and compresses low-pressure gas refrigerant from the indoor heat exchanger (55).
  • the gas refrigerant compressed to high pressure by the compressor (52) is discharged from the compressor (52) and flows into the outdoor heat exchanger (53).
  • the refrigerant exchanges heat with outdoor air and condenses.
  • the liquid refrigerant flowing out of the outdoor heat exchanger (53) is decompressed by the electronic expansion valve (54) and then flows into the indoor heat exchanger (55).
  • the refrigerant exchanges heat with the room air and evaporates to cool the room air. At this time, the cooled air is supplied to the room to cool the room.
  • the refrigerant evaporated in the indoor heat exchanger (55) is sucked into the compressor (52).
  • the cooling operation is performed by repeating the above operation.
  • the compressor (52) is started by switching the four-way switching valve (56) to the second position indicated by the broken line in FIG.
  • the compressor (52) sucks and compresses the low-pressure gas refrigerant from the outdoor heat exchanger (53).
  • the gas refrigerant compressed to a high pressure by the compressor (52) is discharged from the compressor (52) and flows into the indoor heat exchanger (55).
  • the indoor heat exchanger (55) the refrigerant exchanges heat with room air to condense and heat the room air.
  • the heated air is supplied to the room to heat the room.
  • the liquid refrigerant flowing out of the indoor heat exchanger (55) is decompressed by the electronic expansion valve (54) and then flows into the outdoor heat exchanger (53).
  • the refrigerant evaporates by exchanging heat with outdoor air.
  • the refrigerant evaporated in the outdoor heat exchanger (53) is sucked into the compressor (52).
  • the heating operation is performed by repeating the above operation.
  • the current of the main circuit supplied from the external power source through the power module (3) flows to the electrical wiring (8) via the first, second, and third terminal blocks (10a, 10b, 10c). , And supplied to an inverter-driven compressor (52).
  • the current supplied from the power module (3) flows on the copper foil of the printed wiring board (2), if the cross-sectional area of the copper foil is small, the copper foil becomes hot and goes to the board (2).
  • the current from the power module (3) to the terminal for the first, second, and third terminal blocks (10a, 10b, 10c) is present. Since it mainly flows to the electrical wiring (8) through the base (10), it does not flow on the copper foil of the printed wiring board (2).
  • the degree of freedom in designing the printed wiring board unit can be increased.
  • the terminal block (10) is formed of a metal material plate and can be easily made sufficiently thick, the resistance value of the terminal block (10) can be lowered. Therefore, heat generation of the terminal block (10) can be suppressed, and since the terminal block (10) itself is made of metal and the terminal connection part (11) is exposed on both the upper and lower surfaces, a heat dissipation effect can be expected. . Therefore, it is possible to suppress the temperature of the printed wiring board (2) from rising. Conventionally, even if an expensive printed wiring board (2) is used, it is limited to supply about 30 A to the driving target. According to this embodiment, a large capacity inverter or the like can be used for 45 A to 60 A. It is possible to cope with the case where it is necessary to pass a larger current.
  • the terminal block (10) which is the connecting member of the present invention is a very small part of about several centimeters, and the copper foil of the printed wiring board (2) is not required to be widened. Since a large current can be prevented from flowing, the printed wiring board (2) can be prevented from being enlarged. Therefore, the economic effect is very large.
  • the terminal block (10) can be formed by bending a single metal material, the manufacturing can be simplified. Further, since the terminal block (10) is an individual component for each terminal and can be used as a general-purpose product, it is possible to freely change the component arrangement on the printed wiring board (2). At the same time, it can be used for other printed wiring boards (2) very easily. For this reason, there is a great merit that the development schedule can be shortened.
  • the terminal block (10) is a bent molded product.
  • the bending molding is adopted, there is an effect of simplifying the configuration of the terminal block (10). It is advantageous.
  • Modification 1 is an example in which some of the terminal blocks (10) used in the wiring board unit (1) of the present invention have different configurations. Specifically, as shown in FIG. 8, the position of the terminal connection portion (11) provided on the terminal block (10) is provided at a different position (height) for each terminal block (10). In this case as well, the terminal connection part (11) is parallel to the printed wiring board (2) when attached to the printed wiring board (2), and the distance between the terminal connection part (11) and the printed wiring board (2).
  • the dimension is configured to be a predetermined dimension.
  • the predetermined dimension in this case is set to about several millimeters on the plus side (upper side) and the minus side (lower side).
  • the said terminal connection part (11, 21, 31) is formed so that it may be located in parallel with the said printed wiring board (2) outside the said hole (2c).
  • the terminal block (10 ) Is the same as in the first embodiment.
  • the terminal block (10) prevents the terminal connection (11) from interfering with the power module (3B).
  • the terminal connecting portion (11) is provided at a position above the rightmost terminal block (10) in the figure (the predetermined dimension is set to plus several millimeters).
  • the example of the center of FIG. 8 is an example corresponding to the case where the height of the power module (3C) is low, and the terminal connection portion (11) is formed at a lower position in the drawing. (The predetermined dimension is set to minus several millimeters).
  • the height that can be soldered to the printed circuit board (2) may differ for each power module (3A, 3B, 3C). It was. Therefore, it is difficult to attach to the same printed wiring board (2), and the printed wiring board (2) is divided into two pieces, or another power module (3A, 3B, 3C) that is inferior in performance and cost is adopted. Sometimes adjusted the height.
  • the power supply modules (3A, 3B, 3C) having different heights can be obtained by preparing several types of terminal blocks (10) having different height positions of the terminal connection portions (11). It becomes possible to mount on the same printed circuit board (2). This is because the terminal connection part (11) is parallel to the printed wiring board (2) when attached to the printed wiring board (2), and the distance between the terminal connection part (11) and the printed wiring board (2). This is made possible because of the configuration of a predetermined size.
  • the circuit element (3) is connected to the terminal connection portions (11, 21, 31) arranged in parallel with the printed wiring board (2) outside the hole (2c) formed in the printed wiring board (2).
  • the terminal pin (3a) is joined, the electrical wiring (8) is connected to the wiring connection (12, 22, 32), and the current from the circuit element (3) passes through the terminal block (10) for electrical wiring. Go to (8).
  • the terminal block may be configured as shown in FIG. 9A is a plan view and FIG. 9B is a side view.
  • the radiation fin (11b) is formed in the base side of the terminal connection part (11).
  • the radiating fin (11b) is formed by bending both edge portions on the base side of the terminal connecting portion (11).
  • the heat dissipating fin (11b) may be formed on the tip end side of the terminal connection portion (11) by bending both edge portions on the tip end side of the terminal connection portion (11), or formed at other positions. May be. Moreover, the formation method of a radiation fin (11) is not restricted to a bending, You may form a radiation fin (11b) by joining another member.
  • the terminal block (10) may be formed as shown in FIG.
  • the shape of the terminal connecting portion (11) is a shape having a thick tip and a base end, but in the example of FIG. 10, the bent portion (14a) is inclined.
  • the constricted portion of the terminal connecting portion (11) is eliminated. This makes it possible to pass a larger current than that in FIG.
  • the non-contact portion can also provide the same effect as the heat radiation fin (11b) of the terminal block in FIG.
  • the circuit element (3) connected to the terminal block (10) may be a relay.
  • the terminal connection portion (11) of the terminal block (10) is configured to be positioned below the printed wiring board (2), and the terminal block (10) and the relay (3 ) To the same surface (in this example, the top surface) of the printed wiring board (2), and the terminal pin (3a) may be soldered to the terminal connection (11).
  • a reactor a capacitor, or the like may be used as the circuit element.
  • Embodiment 2 of the Invention A second embodiment of the present invention will be described.
  • the terminal block (connection member) has a two-piece structure.
  • 12A is a cross-sectional view of a main part in a connected state
  • FIG. 12B is a plan view.
  • the terminal block (20) supports the first member (20a) having the terminal connection portion (21) and the wiring connection portion (22), the first member (20a), and the printed wiring board ( And a second member (20b) attached to 2).
  • the first member (20a) is formed by bending a strip-shaped conductive metal material having a constant width.
  • the first member (20a) extends downward at an angle of 90 ° from one end of the wiring connection portion (22) that is placed and fixed on the second member (20b).
  • the connecting portion (25) and a terminal connecting portion (21) extending from the lower end of the connecting portion (25) to the opposite side of the wiring connecting portion (22) at an angle of 90 °.
  • a through hole (22a) for passing the retaining screw (9) is formed in the wiring connection part (22), and a terminal pin insertion hole (21a) is formed as a terminal solder joint in the terminal connection part (21). ing.
  • the second member (20b) is a support member that supports the first member (20a), and is formed by bending a strip-shaped metal material that is wider than the terminal block (10) of the first embodiment. .
  • the second member (20b) includes a support portion (26) on which the wiring connection portion (22) of the first member (20a) is placed and fixed, and 90 ° downward from both ends of the support portion (26). Leg portions (attachment portions) (24) extending parallel to each other at an angle.
  • the width of the first member (20a) and the width of the second member (20b) may be determined as appropriate.
  • the angle of the connecting part (22) and the connecting part (25) and the connecting part (25) and the terminal connecting part (21) are each 90 °, the wiring connecting part (22) And the terminal connecting part (21) are parallel (in the horizontal direction), the angle between the connecting part (25) and the wiring connecting part (22), and the connecting part (25) and the terminal connecting part (21)
  • the angle may be set arbitrarily.
  • a female screw part (26a) for fastening electric wiring by fastening a fastening screw (9) (attachment screw) is formed in the burring part (26b).
  • the burring portion (26b) may have a shape in which a nut is welded or the nut is crimped and fixed.
  • the fixing claw (24b) is inserted into the mounting hole (2b) formed at the predetermined mounting position on the printed wiring board (2) from above, and the mounting hole ( It is formed to have a length protruding downward from 2b), and a portion protruding downward from the printed wiring board (2) is soldered to the lower surface of the printed wiring board (2).
  • the fixing claw (24b) is provided with a convex portion (not shown) for providing the second member (20b) with respect to the printed wiring board (2) and a positioning function. The point is the same as in the first embodiment.
  • the current of the main circuit supplied from the power module mainly flows to the electric wiring (8) via the two-piece type terminal block (20) and is supplied to the inverter-driven compressor or the like.
  • the current corresponding to the first, second and third terminal blocks (10a, 10b, 10c) of the first embodiment does not flow on the copper foil of the printed wiring board (2).
  • the terminal block (20) is formed from the metal material board and it is easy to make it sufficient thickness, the resistance value of a terminal block (20) can be lowered
  • the terminal block (20) has a two-piece structure, the shapes of the first member (20a) and the second member (20b) can be extremely simplified. Therefore, manufacturing can be facilitated. Moreover, attachment is also easy.
  • the terminal block (20) by making the terminal block (20) into two pieces, if the length of the connecting part (25) of the first member (20a) is adjusted, it is easy to cope with different heights of the power module (3) It becomes possible to do.
  • a modification of the second embodiment shown in FIG. 13 is an example in which the shape of the first member (20a) is different from the example of FIG.
  • the first member (20a) of this modification is configured so that the first member (20a) itself can be positioned and the crimp terminal (8a) of the electrical wiring (8) can be positioned.
  • the connecting portion (25) is formed in an L shape from the vertical plate portion (25a) and the horizontal plate portion (25b).
  • the first member (20a) is configured such that the wiring connection portion (22) is placed and fixed on the support portion (26) of the second member (20b), and the horizontal plate portion (25b) of the connecting portion (25).
  • the size is configured so that a slight gap is formed between the lower surface of the printed circuit board and the upper surface of the printed wiring board (2) (the gap is omitted in the figure).
  • the positioning pin (25c) is formed in the lower surface of a horizontal-plate part (25b), and the positioning hole (2d) is formed in the position corresponding to the positioning pin (25c) in the printed wiring board (2).
  • the positioning pin (25c) has a length protruding downward from the printed wiring board (2), and a portion protruding downward from the printed wiring board (2) is fixed by soldering.
  • a positioning piece (22b) for preventing the crimping terminal (8a) of the electric wiring (8) from rotating is provided at the end opposite the connecting part (25) (the right end in the figure). Part).
  • the two-piece type terminal block (20) When the two-piece type terminal block (20) is configured in this way, the first member (20a) and the crimp terminal (8a) are used when the electric wiring (8) is fixed to the terminal block (20) with the fastening screws (9). ) Does not have to be held firmly by the operator's hand, improving workability. Other effects are the same as in the example of FIG.
  • FIG. 14A is a cross-sectional view of a main part showing a connection state in this embodiment
  • FIG. 14B is a plan view.
  • a substantially flat terminal board (30) is used as a connecting member for connecting a circuit element (power module) of an electric circuit provided with a printed wiring board (2) and an electric wiring (8). It is an example.
  • the terminal board (30) is formed by pressing a strip-shaped conductive metal material having a constant width.
  • the terminal plate (30) has a terminal connection part (31) to which a terminal pin (3a) of a circuit element such as a power module (3) is directly connected on one end side, and an electric wiring (8 ) Is connected to the wiring connection part (32).
  • the terminal connection part (31) and the wiring connection part (32) are slightly displaced in the direction perpendicular to the plane, and a step part (33) is interposed between the terminal connection part (31) and the wiring connection part (32). ing.
  • the terminal connection portion (31) is formed with a terminal pin insertion hole (31a) for inserting and soldering the terminal pin (3a) of the power module (3).
  • a female screw part (32a) for fastening an electric wiring (8) by fastening a fastening screw (attachment screw) (9) is formed in the burring part (32b).
  • the burring portion (26b) may have a shape in which a nut is welded or a nut is caulked and fixed.
  • a terminal board attachment hole (2e) into which the burring portion (32b) of the terminal board (30) is inserted is formed in the printed wiring board (2).
  • the terminal board mounting hole (2e) is basically formed at a position where the terminal board (30) does not come into contact with the printed wiring pattern, and the terminal board (30) is mounted on the printed wiring board (2). It can be attached to the position. That is, by providing the burring portion (32b), the wiring connection portion (32) functions as an attachment portion for attaching the terminal board (30) to the printed wiring board (2).
  • the retaining screw (9) is fastened to the female thread portion (32a) via the crimp terminal (8a) of the electric wiring (8) and the washer (plain washer and spring washer) (9a).
  • the crimp terminal (8a) of the electrical wiring (8) is held in a state of being sandwiched between the upper surface of the wiring connection portion (32) and the washer (9a).
  • the current supplied from the power module (3) basically flows to the electric wiring (8) via the terminal plate (30) and is supplied to the inverter-driven compressor or the like. That is, the current of the main circuit is basically prevented from flowing on the copper foil of the printed wiring board (2).
  • the terminal board (30) is formed from the metal material board and it is easy to make it sufficient thickness, the resistance value of a terminal board (30) can be lowered
  • the terminal plate (30) has a substantially flat shape, the terminal plate (30) can be easily manufactured by pressing.
  • Modification 1 of the third embodiment shown in FIG. 15 is an example in which the shape of the terminal plate (30) is different from the example of FIG. 14, and FIG. ) Is a plan view.
  • This modification 1 is configured so that the crimp terminal (8a) of the electrical wiring (8) can be positioned as in the modification of the second embodiment shown in FIG. Therefore, the wiring connection portion (32) has positioning pieces (32c) for preventing the crimping terminal (8a) of the electric wiring (8) from rotating at four locations around the female screw portion (32a). It is formed so as to protrude upward from (32). Specifically, the positioning piece (32c) has both edges on the front end (right end in the figure) of the wiring connection part (32) and both edges between the female thread part (32a) and the step part (33). Is formed.
  • the direction of the electric wires can be fixed in four directions that are rotated by 90 ° sequentially in accordance with the direction shown in FIG.
  • Modification 2 of Embodiment 3 shown in FIG. 16 is an example in which the shape of the terminal plate (30) is different from the examples of FIGS. 14 and 15, and FIG. 16 (A) shows the first connection pattern.
  • FIG. 16B is a central sectional view showing a second connection pattern, and
  • FIG. 16C is a plan view.
  • the soldering method using the eyelet (34) is adopted instead of the screwing method of the crimp terminal (8a). .
  • the eyelet (34) functions as an attachment portion for attaching the terminal board (30) to the printed wiring board (2).
  • the terminal plate (30) of this modified example 2 is also provided with a stepped portion (33) between the terminal connecting part (31) and the wiring connecting part (32), as in the modified example 1.
  • the configurations of the terminal connection part (31) and the step part (33) are the same as in the first modification.
  • a first eyelet through hole (32d) is formed in the wiring connection portion (32).
  • a second eyelet through hole (2f) is formed in the printed wiring board (2).
  • the first eyelet through hole (32d) of the wiring connection part (32) and the second eyelet through hole (2f) of the printed wiring board (2) have the same inner diameter, and the terminal board (30) is attached to the printed wiring board (2).
  • the terminal board (30) is fixed to the printed wiring board (2) by mounting the eyelet (34) in a stacked state. Also in this modified example 2, basically, the printed circuit board (2) is not formed with a printed circuit pattern of a main circuit through which a large current flows, and the second eyelet through hole (2f) The terminal board (30) is formed at a position where it does not contact the printed wiring pattern.
  • the bare wire (8b) of the electrical wiring (8) is soldered to the eyelet (34) on the upper surface side of the printed wiring board (2), and the eyelet ( 34) is fixed to the terminal board (30) by soldering.
  • a wire fixing crimp pin (8c) can also be used.
  • the terminal pin (3a) of the power module (3) protruding upward from the terminal pin insertion hole (31a) is fixed to the terminal connection portion (31) by soldering. As described above, the terminal pin (3a) of the power module (3) and the electrical wiring (8) are electrically connected.
  • the eyelet (34) is fixed to the terminal board (30) by soldering on the upper surface side of the printed wiring board (2), and the electric wiring (8) is attached to the eyelet. It is fixed to (34) by soldering on the bottom side of the printed wiring board (2). At that time, the eyelet (34) and the printed wiring board (2) are fixed by soldering on the lower surface side of the printed wiring board (2) with excess solder.
  • the current of the main circuit supplied from the power module (3) flows to the electric wiring (8) through the terminal plate (30) and is supplied to the inverter-driven compressor or the like. That is, the current of the main circuit does not flow on the copper foil of the printed wiring board (2).
  • the terminal board (30) is formed from the metal material board and it is easy to make it sufficient thickness, the resistance value of a terminal board (30) can be lowered
  • Modification 3 of Embodiment 3 shown in FIG. 17 is an example in which the shape of the terminal plate (30) is different from the example of FIG. 14, and FIG. 17 (B) is a plan view.
  • the terminal board (30) of the third modification is an example in which the terminal board (30) can be positioned on the printed wiring board (2).
  • the terminal plate (30) has a terminal connection portion (31) to which a terminal pin (3a) of a circuit element such as a power module (3) is directly connected.
  • a terminal connection part (32) Provided on one end side, provided on the other end side with a wiring connection part (32) to which the electrical wiring (8) is connected, and a step part (33) between the terminal connection part (31) and the wiring connection part (32). ) Is present.
  • the terminal connection portion (31) is formed with a terminal pin insertion hole (31a) for inserting and soldering the terminal pin (3a) of the power module (3).
  • a female screw portion (32a) for fastening the electric wiring (8) by fastening the fastening screw (9) (mounting screw) is formed in the burring portion (32b) as in FIG. ing.
  • the burring portion (32b) may have a shape in which a nut is welded or the nut is crimped and fixed.
  • a terminal board attachment hole (2e) into which the burring portion (32b) of the terminal board (30) is press-fitted is formed in the printed wiring board (2).
  • the printed circuit pattern of the main circuit is not formed on the printed circuit board (2), and the terminal board mounting holes (2e) are formed on the terminal board (30
  • the terminal board (30) is attached at the predetermined attachment position on the printed wiring board (2).
  • a fastening screw (9) is fastened to the female screw portion (32a) via a crimp terminal (8a) and a washer (9a) (a plain washer and a spring washer) of the electric wiring (8).
  • the crimp terminal (8a) of the electrical wiring (8) is held in a state of being sandwiched between the upper surface of the wiring connection portion (32) and the washer (9a).
  • Positioning pins (32e) projecting downward from four locations around the female screw portion (32a) are formed on the lower surface of the wiring connection portion (32), and positioning pins (32e) are formed on the printed wiring board (2).
  • a positioning hole (2d) is formed at a position corresponding to.
  • the positioning pin (32e) has a length protruding downward from the printed wiring board (2), and the portion protruding downward from the printed wiring board (2) is fixed to the printed wiring board (2) by soldering. .
  • there is basically no printed wiring pattern through which a large current flows so that the terminal plate (30) and the large current are connected to the printed circuit board (2) while the terminal plate (30) is fixed to the printed wiring board (2). There is no contact with the flowing printed wiring pattern.
  • the same effect as in the third embodiment can be obtained. Further, since the terminal board (30) is positioned on the printed wiring board (2), it is possible to easily perform the joining work of the electric wiring (8).
  • the positioning pins (32e) are provided at four locations, but the number can be increased or decreased as necessary.
  • Modification 4 of Embodiment 3 shown in FIG. 18 is an example in which positioning of the crimp terminal (8a) is enabled in Modification 3 of FIG.
  • the wiring connection part (32) of the terminal plate (30) has four positioning pieces (32c) for preventing the crimp terminal (8a) of the electric wiring (8) from rotating around the female screw part (32a). Are formed so as to protrude upward.
  • Embodiment 4 of the Invention A fourth embodiment of the present invention shown in FIG. 19 will be described.
  • connection member of the fourth embodiment is an example in which the terminal board (30) of the third embodiment is modified, and the wiring connection portion (32) is electrically connected without using a connection method such as a fastening screw (9) or soldering. It is configured to connect the wiring (8).
  • the terminal plate (30) has a terminal connection part (31) to which a terminal pin (3a) of a circuit element such as a power module (3) is directly connected on one end side, and an electric wiring (8 ) Are connected, and a stepped portion (33) is interposed between the terminal connecting portion (31) and the wiring connecting portion (32).
  • the terminal connection portion (31) is formed with a terminal pin insertion hole (31a) for inserting and soldering the terminal pin (3a) of the power module (3).
  • Positioning pins (32e) projecting downward from two locations are formed on the lower surface of the wiring connection portion (32), and positioning holes (2d) are formed at positions corresponding to the positioning pins (32e) on the printed wiring board (2). Is formed.
  • the positioning pin (32e) has a length protruding downward from the printed wiring board (2), and the portion protruding downward from the printed wiring board (2) is fixed to the printed wiring board (2) by soldering. .
  • the positioning pins (32e) are provided at two locations, but the number can be increased or decreased as necessary. Also in this case, basically, a printed wiring pattern through which a large current flows is not provided. Therefore, in a state where the terminal board (30) is fixed to the printed wiring board (2), the terminal board (30) does not contact the printed wiring pattern through which a large current flows.
  • a cylindrical wiring clamp (32f) protruding upward is formed at the tip of the wiring connection portion (32) (right end portion in the figure).
  • the wire clamp (32f) is dimensioned so that the inner diameter of the cylinder can be inserted into the bare wire (8b) of the electric wire (8).
  • the terminal pin (3a) of the power module (3) is fixed to the terminal connection (31) by soldering, and the electrical wiring (8) is inserted into the wiring clamp (32f) and crimped or soldered. It is fixed by doing.
  • the current of the main circuit supplied from the power module (3) flows to the electric wiring (8) through the terminal plate (30) and is supplied to an inverter-driven electric motor or the like. That is, basically, the current of the main circuit does not flow on the copper foil of the printed wiring board (2). And since the terminal board (30) is formed from the metal material board and it is easy to make it sufficient thickness, the resistance value of a terminal board (30) can be lowered
  • Modification 1 of Embodiment 4 shown in FIG. 20 is an example in which the way of connecting the electrical wiring (8) is different from the example of FIG.
  • a wire fixing crimp pin (8c) is fixed around the bare wire (8b) at the tip.
  • the terminal plate (30) has a terminal connection part (31) to which a terminal pin (3a) of a circuit element such as a power module (3) is directly connected on one end side, and an electric wiring (8 ) Are connected, and a stepped portion (33) is interposed between the terminal connecting portion (31) and the wiring connecting portion (32).
  • the terminal connection portion (31) is formed with a terminal pin insertion hole (31a) for inserting and soldering the terminal pin (3a) of the power module (3).
  • a burring part (32b) is provided at the center of the wiring connection part (32).
  • the inner diameter of the burring part (32b) is almost the same as the outer diameter of the crimp pin (8c) for fixing the wire, and the outer diameter is almost the same as the terminal board mounting hole (2e) formed in the printed wiring board (2).
  • the crimp pin (8c) protrudes downward from the printed wiring board (2), and the protruding part is joined to the burring part (32b) of the terminal board (30) and the printed wiring board (2) by soldering. ing.
  • a positioning pin (32e) protruding downward from two locations is formed on the lower surface of the wiring connection portion (32), and a positioning hole (32e) is formed at a position corresponding to the positioning pin (32e) on the printed wiring board (2). 2d) is formed.
  • the positioning pin (32e) has a length protruding downward from the printed wiring board (2), and the portion protruding downward from the printed wiring board (2) is fixed to the printed wiring board (2) by soldering. .
  • the positioning pins (32e) are provided at two locations, but the number can be increased or decreased as necessary. Also in this case, basically, a printed wiring pattern through which a large current flows is not provided, so that the terminal board (30) is fixed to the printed wiring board (2), and the terminal board (30) is large. There is no contact with the printed wiring pattern through which current flows.
  • the current of the main circuit supplied from the power module (3) flows to the electrical wiring (8) through the terminal plate (30) and is supplied to the inverter-driven compressor or the like. That is, basically, the current of the main circuit does not flow on the copper foil of the printed wiring board (2).
  • the terminal board (30) is formed from the metal material board and it is easy to make it sufficient thickness, the resistance value of a terminal board (30) can be lowered
  • the terminal plate (30) is configured in this way, the configuration of the terminal plate (30) can be simplified, and the terminal plate (30) can be easily manufactured.
  • Embodiment 5 of the Invention >> Embodiment 5 of the present invention shown in FIG. 22 will be described.
  • the connecting member according to the fifth embodiment is configured such that the terminal connecting portion (31) has a different configuration in the terminal plate (30) of the fourth embodiment shown in FIG.
  • the terminal plate (30) has a terminal connection part (31) to which a terminal pin (3a) of a circuit element such as a power module (3) is directly connected on one end side, and an electric wiring (8 ) Is connected to the wiring connection part (32).
  • the terminal connection portion (31) is formed by bending the tip end (left end portion in the figure) of the wiring connection portion (32) downward.
  • This terminal connection part (31) is comprised so that the terminal of a power module (3) may be joined by welding.
  • Positioning pins (32e) projecting downward from two locations are formed on the lower surface of the wiring connection portion (32), and positioning holes (2d) are formed at positions corresponding to the positioning pins (32e) on the printed wiring board (2). Is formed.
  • the positioning pin (32e) has a length protruding downward from the printed wiring board (2), and the portion protruding downward from the printed wiring board (2) is fixed to the printed wiring board (2) by soldering. . Also in this case, since there is no printed wiring pattern through which a large current flows, the terminal board (30) and the printed wiring pattern through which a large current flows are in a state where the terminal board (30) is fixed to the printed wiring board (2). Do not touch. In this configuration, by providing the positioning pin (32e), the wiring connection portion (32) functions as an attachment portion for attaching the terminal board (30) to the printed wiring board (2).
  • a cylindrical wiring stopper (32f) protruding upward is formed at the tip of the wiring connection part (32) (the end opposite to the terminal connection part (31).
  • the wire clamp (32f) is dimensioned so that the inner diameter of the cylinder can be inserted into the bare wire (8b) of the electric wire (8).
  • the terminal pin (3a) of the power module (3) is fixed to the terminal connection part (31) by welding, and the electric wiring (8) is inserted into the wiring clamp (32f) and crimped or soldered. It is fixed by.
  • the current of the main circuit supplied from the power module (3) flows to the electric wiring (8) via the terminal plate (30) and is supplied to the inverter-driven electric motor or the like. That is, the large current of the main circuit does not flow on the copper foil of the printed wiring board (2). And since the terminal board (30) is formed from the metal material board and it is easy to make it sufficient thickness, the resistance value of a terminal board (30) can be lowered
  • the terminal pin (3a) is welded to the terminal connection part (31). However, the terminal pin (3a) is pressed to the terminal connection part (31) with a spring force with the terminal pin (3a) slightly bent. Thus, the terminal connection part (31) may be formed. In addition to soldering and welding, a connection structure such as caulking may be employed.
  • the terminal pin (3a) of the power module (3) is bonded to the portion where the leg portion (14) is bonded to the substrate portion (2a) of the printed wiring board (2) and the terminal connection portion (11).
  • soldering is used in the above embodiment. Soldering is advantageous for downsizing, but a joining method other than soldering may be used if the purpose is only to cope with a large current.
  • the portion for attaching the electrical wiring (8) to the wiring connection portion (12) is not necessarily screwed.
  • various connection structures such as a structure using the above-described eyelet, a structure using a so-called faston tab (a structure in which a tab is inserted into a receptacle), caulking, welding, and the like can be employed in addition to screwing. .
  • the terminal block (10) may be provided with a female screw part (12b) for connecting the wiring to the leg part (14).
  • the burring portion and the female screw portion may be formed on the leg portion (14).
  • the burring portion and the female thread portion may be formed on both the wiring connection portion (12) and the leg portion (14), and may be selected and used according to the terminal shape of the module.
  • the terminal shape varies depending on the power module (3) to be used
  • the position, shape and number of the terminal pin insertion holes (11a) may be designed in accordance with the power module (3) to be used.
  • the terminal block (10, 20) and the terminal plate (30) have been described as connecting members, but the connecting member may have any other shape.
  • the application target is not limited to the air conditioner and can be applied to a general refrigeration apparatus.
  • the practical temperature rise value of a printed wiring board is within 20K. From the graph of current density and temperature rise shown in FIG. 23, the copper foil width of the printed wiring board when the temperature rise is 20K is 26 mm (30 A energization) and 70 mm (60 A energization) in terms of the copper foil thickness of 35 ⁇ m. If a substrate is used, the width is half that of 13 mm (30 A energization) and 35 mm (60 A energization) per side. Actually, since it is affected by the heat generation of the semiconductor inside the power module (about 50K) and the heat generation of the terminal pin (about 80K when energized with 60A), it is considered that a wider copper foil width is required.
  • the terminal pin cross-sectional area is about 0.95 mm 2 .
  • the maximum copper foil width that can be provided when mounted on a printed wiring board is about 6 mm per side, considering the insulation distance between the pins. . Therefore, even if a 70-micron double-sided board having the thickest copper foil among the highly versatile printed wiring boards is used, 30A energization is a limit in the conventional structure.
  • connection member of the above embodiment when used, the width of the required electric circuit when manufactured with a thickness of 1.2 mm is 2.5 mm when energized with 60 A, and there is a sufficient margin for the above 6 mm. Can be used practically without problems.
  • connection member of the present invention is compatible with such a large current power module, and can be used for applications exceeding 30A, and can be used up to the rated current of the power module, and can be useful for miniaturization and wiring simplification. It is. Further, it does not prevent the module from being mounted on the printed wiring board.
  • the present invention includes a connecting member that connects a circuit element of an electric circuit provided with a printed wiring board and the electric wiring, a circuit element mounted on the printed wiring board, and the connecting member. It is useful for the printed wiring board unit used and the refrigeration apparatus provided with the printed wiring board unit.

Abstract

La présente invention concerne une unité de substrat pour câblage imprimé comportant un élément de circuit tel qu'un module de puissance (3) installé sur un substrat (2) de circuit imprimé. Il est possible d'empêcher l'accroissement de la taille de l'unité de substrat pour câblage imprimé, par une simplification de la constitution d'une partie de connexion et l'utilisation d'un élément de connexion tel qu'une plaque à bornes (10) pouvant supporter un courant électrique de plus forte intensité que celle de l'art antérieur. Un élément de connexion (10) est fixé sur le substrat (2) de circuit imprimé afin de relier une broche de borne (3a) de l'élément de circuit (3) et une ligne (8) de câblage électrique. L'élément de connexion (10) est construit de manière à inclure une partie de fixation (14) destinée à être fixée sur le substrat (2) de circuit imprimé, une partie (11) de connexion de borne servant à relier la broche (3a) de la borne de l'élément de circuit (3) et une partie (12) de connexion de câblage servant à relier la ligne de câblage électrique (8). De plus, le circuit électrique est réalisé de manière à inclure un circuit de réseau principal et un circuit de commande, et la ligne de câblage électrique est réalisée dans la ligne de câblage électrique du circuit de réseau principal.
PCT/JP2009/001877 2008-04-30 2009-04-23 Unité de substrat pour câblage imprimé et dispositif de congélation WO2009133678A1 (fr)

Applications Claiming Priority (4)

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JP2008118584 2008-04-30
JP2008-118584 2008-04-30
JP2009035448A JP2015038896A (ja) 2008-04-30 2009-02-18 プリント配線基板ユニット及び冷凍装置
JP2009-035448 2009-02-18

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
EP3236533A4 (fr) * 2014-12-17 2018-06-13 Daikin Industries, Ltd. Structure de connexion de module-bloc de jonction et procédé de connexion
CN114824853A (zh) * 2022-06-27 2022-07-29 深圳众城卓越科技有限公司 用于pcb功率板导大电流接线的新型压接组件及其压接方法

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
JP6552227B2 (ja) * 2015-03-17 2019-07-31 岡谷電機産業株式会社 端子台

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JPH04273190A (ja) * 1991-02-27 1992-09-29 Toshiba Corp 電気回路装置
JP2002228197A (ja) * 2001-01-29 2002-08-14 Daikin Ind Ltd 電路板及び空気調和機

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JPS5637371U (fr) * 1979-08-31 1981-04-09
JPH06302932A (ja) * 1993-04-09 1994-10-28 Toyo Electric Mfg Co Ltd プリント配線基板

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Publication number Priority date Publication date Assignee Title
JPH04273190A (ja) * 1991-02-27 1992-09-29 Toshiba Corp 電気回路装置
JP2002228197A (ja) * 2001-01-29 2002-08-14 Daikin Ind Ltd 電路板及び空気調和機

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3236533A4 (fr) * 2014-12-17 2018-06-13 Daikin Industries, Ltd. Structure de connexion de module-bloc de jonction et procédé de connexion
CN114824853A (zh) * 2022-06-27 2022-07-29 深圳众城卓越科技有限公司 用于pcb功率板导大电流接线的新型压接组件及其压接方法

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