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JP-2026074514-A - Charging device and method for manufacturing a charging device

JP2026074514AJP 2026074514 AJP2026074514 AJP 2026074514AJP-2026074514-A

Abstract

[Problem] To provide a charging device in which a connector is placed on the lid, and a method for manufacturing the charging device. [Solution] In the charging device 100, the third busbar 633 and the second busbar 632 are fixedly connected by a fixing member 661. The fixing member 661 is positioned in the through hole 612C when viewed from the direction normal to the second surface 612B of the lid 611. [Selection Diagram] Figure 5

Inventors

  • 八島 基衛
  • 伊藤 智志

Assignees

  • 株式会社豊田自動織機

Dates

Publication Date
20260507
Application Date
20241021

Claims (11)

  1. A charging device installed in a vehicle, A connector into which the cable connector of the cable that receives voltage from an external charger for the vehicle is inserted, A power supply circuit that supplies the power supplied to the connector to the vehicle's battery, A connector terminal having conductivity to the aforementioned connector, A first busbar for supplying voltage to the aforementioned supply circuit, A housing having an opening, It comprises a lid that closes the opening, The lid closes the opening, thereby forming a storage space. The aforementioned housing space houses the supply circuit, the first busbar, and the connector terminals. The aforementioned lid is The first surface on the side of the accommodation space, The second surface opposite to the first surface, Having a through hole, The connector is fixed to the second surface, The first busbar and the connector terminal are fixedly connected by a fixing member. The fixing member is a charging device positioned in the through-hole when viewed from the direction normal to the second surface.
  2. The charging device according to claim 1, wherein the insertion direction of the cable connector into the connector is the normal direction.
  3. The charging device according to claim 2, wherein, when the charging device is mounted on the vehicle, the normal direction is the height direction of the vehicle.
  4. The charging device according to claim 2 or 3, wherein the insertion direction is different from the cable's extension direction.
  5. When the charging device is viewed from the normal direction, The charging device according to any one of claims 1 to 3, wherein the cable overlaps with at least a portion of the through hole.
  6. The aforementioned connector terminal further comprises a second busbar, The charging device includes a terminal block for fixing the second busbar, The aforementioned housing space houses the supply circuit, the first busbar, and the second busbar. The charging device according to any one of claims 1 to 3, wherein the first busbar and the second busbar are fixedly connected by the fixing member.
  7. The charging device according to claim 6, wherein the terminal block is fixed to the cover.
  8. The charging device according to any one of claims 1 to 3, wherein the cable is fixed by a mounting base.
  9. The connector is supplied with DC voltage and AC voltage from the charger. The first busbar supplies the DC voltage supplied to the connector to the supply circuit. The supply circuit supplies the DC voltage supplied by the first busbar to the battery. The charging device further includes, A conversion circuit that converts AC voltage to DC voltage, A third busbar that supplies the AC voltage supplied to the connector to the conversion circuit, The system includes a switching circuit that switches between a state in which a DC voltage supplied to the connector is applied to the first busbar and a state in which an AC voltage supplied to the connector is applied to the third busbar. The aforementioned housing space houses the supply circuit, the first busbar, and the third busbar. The charging device according to any one of claims 1 to 3, wherein the first busbar and the third busbar are fixedly connected by the fixing member.
  10. To the aforementioned connector, When DC power is supplied, a voltage greater than 0V and less than or equal to 1000V is supplied. A charging device according to any one of claims 1 to 3, wherein when AC power is supplied, a voltage greater than 0 Vrms (Voltage Root-Mean-Square) and less than or equal to 293 Vrms is supplied.
  11. A manufacturing method for producing a charging device to be installed in a vehicle, Prepare the lid unit, This includes preparing the enclosure unit, The aforementioned lid unit is A lid having a first surface, a second surface opposite to the first surface, and a through hole, A cable connector of a cable that receives voltage from an external charger of the vehicle is inserted into a connector that is fixed to the second surface, The connector has conductive connector terminals, The aforementioned housing unit is A power supply circuit that supplies the power supplied to the connector to the vehicle's battery, A busbar for supplying voltage to the aforementioned supply circuit, It has a housing that has an opening, The aforementioned manufacturing method further includes, The lid unit is positioned on the housing unit such that its first surface faces the housing unit and its lid closes the opening. The lid unit is placed on the housing unit to form a storage space. The aforementioned housing space houses the supply circuit, the busbar, and the connector terminals. The aforementioned manufacturing method further includes, A manufacturing method comprising passing a fixing member through the through hole and fixing the connector terminal and the busbar with the fixing member.

Description

This disclosure relates to a charging device and a method for manufacturing a charging device. International Publication No. 2013-073491 (Patent Document 1) discloses a charging device for charging a vehicle battery. The charging device is mounted in the vehicle's motor room (also referred to as the engine room). The charging device comprises a housing and an inverter and other components located within the housing. A connector is located on the side wall of the housing of the charging device. A cable is connected to this connector. International Publication No. 2013-073491 This diagram illustrates the state in which the charging device of this embodiment is mounted on a vehicle.This is a perspective view of the charging device of the comparative example.This is a perspective view of the charging device of this embodiment.This is a perspective view of a charging device having a pair of harnesses.This is a diagram illustrating the internal components of the charging device according to this embodiment.This is a diagram showing the charging device viewed from directly above.This diagram shows the main parts of the charging device attached to the cable connector 689 and the first connector.This is a block diagram of the inside of the charging device.This flowchart shows the main steps in the manufacturing process of a charging device.This is a diagram showing a connector device.This is a diagram showing the base device.This diagram shows the connector device attached to the base device. The embodiments of this disclosure will be described in detail below with reference to the drawings. Parts identical or corresponding to those shown in the drawings are denoted by the same reference numerals, and their descriptions will not be repeated. [Vehicles and charging equipment] Figure 1 is a diagram illustrating the state in which the charging device 100 of this embodiment is mounted on a vehicle 10. The vehicle 10 is an electric vehicle. The vehicle 10 mainly includes a charging port 12, a pair of cables 160, an engine room 10A, wheels 10B, a battery 106, etc. In the case of an electric vehicle, there is no engine, but in this embodiment, the engine room 10A is formally referred to as the engine room. Furthermore, the charging device 100 is mounted in the engine room 10A. The charging device 100 is electrically connected to the pair of cables 160 and the battery 106, etc. In this embodiment, the height direction of the vehicle 10 is defined as the Z-axis direction. The Z-axis direction is the direction of gravity acting on the charging device 100 (hereinafter also referred to as the "gravity direction"). The front-rear direction of the vehicle 10 is defined as the Y-axis direction. Specifically, the forward direction of the vehicle 10 is defined as the Y1 axis direction, and the rear direction of the vehicle 10 is defined as the Y2 axis direction. Furthermore, the left-right direction of the vehicle 10 is defined as the X-axis direction. Specifically, the rightward direction of the vehicle 10 is defined as the X1 axis direction, and the leftward direction of the vehicle 10 is defined as the X2 axis direction. Additionally, when the charging device 100 is mounted on the vehicle 10, the Z-axis direction becomes the height direction of the charging device 100. When the vehicle 10 is charged at a charging facility, for example, a charging station connector extending from a charging station 14 (which acts as an external charger for the vehicle 10) is inserted into the charging port 12. Alternating current (AC) and direct current (DC) voltages are applied from the charging station 14 to the charging port 12. The voltage from the charging stand 14 is supplied to the charging device 100 via the charging port 12 and a pair of cables 160. The charging device 100 includes a first connector 601, a second connector 602, a third connector 603, a fourth connector 604, and a pair of harnesses 152, among other things. The first connector 601 receives the cable connector 689 of a pair of cables 160 that receive voltage from the charging stand 14. The first connector 601 corresponds to the “connector” in this disclosure. When a DC voltage is input to the first connector 601, a voltage greater than 0V and less than or equal to 1000V is supplied. When an AC voltage is input to the first connector 601, a voltage greater than 0Vrms (Voltage Root-Mean-Square) and less than or equal to 293Vrms is supplied. If the voltage input to the first connector 601 is an AC voltage, this AC voltage is supplied to the second connector 602. The AC voltage is then input from the second connector 602 to the third connector 603 via the harness 152. The AC voltage is then input from the third connector 603 to the conversion circuit 180 (see Figure 4). The conversion circuit 180 converts the voltage supplied to the first connector 601 and supplies the converted voltage to the battery 106. For example, if the voltage supplied from the charging station 14 is AC v