Circuit assembly and electrical junction box

Patent metadata

Field	Value
Publication number	US-12412877-B2
Application number	US-202217934522-A
Country	US
Kind code	B2
Filing date	Sep 22, 2022
Priority date	Sep 24, 2021
Publication date	Sep 9, 2025
Grant date	Sep 9, 2025

Abstract

A circuit assembly includes a plurality of electronic components; a plurality of control terminals electrically connected to the plurality of electronic components; and a holding member having insulating properties and holds the plurality of control terminals, wherein the control terminals serve as insert articles that form one piece with the holding member that is made of a resin, the control terminals each include: in a partial portion of the control terminal, an exposed face that is exposed from the holding member; a contact face that is located opposite to the exposed face and is in contact with the holding member; a first side face located between the exposed face and the contact face; and a second side face located between the exposed face and the contact face, and a first space formed lateral to the first side face, and a second space formed lateral to the second side face.

First claim

What is claimed is:

1. A circuit assembly comprising:
a plurality of electronic components;
a plurality of control terminals electrically connected respectively to the plurality of electronic components; and
a holding member that has insulating properties and holds the plurality of control terminals,
wherein the control terminals serve as insert articles that form one piece with the holding member that is made of a resin,
each of the control terminals includes, in a partial portion of the control terminal:
an exposed face exposed from the holding member;
a contact face that is located opposite to the exposed face and is in contact with the holding member;
a first side face located between the exposed face and the contact face; and
a second side face located between the exposed face and the contact face, and

a first space is formed lateral to the first side face, and a second space is formed lateral to the second side face; and
wherein the holding member includes:
a thick portion that is in contact with the contact face;
a first thin-film portion that is made of a resin and covers the first side face; and a second thin-film portion that is made of a resin and covers the second side face, and wherein a side face of the first thin-film portion is exposed in the first space, and a side face of the second thin-film portion is exposed in the second space.

2. The circuit assembly according to claim 1 , further comprising:
a control board configured to output signals to the electronic components via the control terminals,
wherein each of the control terminal includes:
a first terminal body portion connected to the control board;
a pad portion that is electrically connected to the first terminal body portion, is provided along the holding member, and includes the exposed face and the contact face, the pad portion serving as the partial portion; and
a second terminal body portion electrically connected to the pad portion and the corresponding electronic component.

3. The circuit assembly according to claim 2 , wherein the pad portion extends from a base portion of the first terminal body portion, and
the holding member includes a first embedding portion in which a boundary region between the first terminal body portion and the pad portion of the control terminal is embedded.

4. The circuit assembly according to claim 2 , wherein the pad portion extends from a base portion of the second terminal body portion,
the holding member includes a second embedding portion in which a boundary region between the pad portion and the second terminal body portion is embedded, and
the second embedding portion includes a resin face that is coplanar with the exposed face of the pad portion.

5. The circuit assembly according to claim 2 , wherein the second terminal body portion includes: a terminal face that is exposed from the holding member and is connected to the corresponding electronic component; and a second exposed face that is located opposite to the terminal face and is exposed from the holding member.

6. An electrical junction box comprising:
the circuit assembly according to claim 1 ; and
a cover that covers the circuit assembly.

7. The circuit assembly according to claim 3 , wherein the pad portion extends from a base portion of the second terminal body portion,
the holding member includes a second embedding portion in which a boundary region between the pad portion and the second terminal body portion is embedded, and
the second embedding portion includes a resin face that is coplanar with the exposed face of the pad portion.

8. The circuit assembly according to claim 3 , wherein the second terminal body portion includes: a terminal face that is exposed from the holding member and is connected to the corresponding electronic component; and a second exposed face that is located opposite to the terminal face and is exposed from the holding member.

9. The circuit assembly according to claim 4 , wherein the second terminal body portion includes: a terminal face that is exposed from the holding member and is connected to the corresponding electronic component; and a second exposed face that is located opposite to the terminal face and is exposed from the holding member.

10. The electrical junction box according to claim 6 , wherein the holding member includes: a thick portion that is in contact with the contact face; a first thin-film portion that is made of a resin and covers the first side face; and a second thin-film portion that is made of a resin and covers the second side face,
a side face of the first thin-film portion is exposed in the first space, and
a side face of the second thin-film portion is exposed in the second space.

11. The electrical junction box according to claim 6 , further comprising:
a control board configured to output signals to the electronic components via the control terminals,
wherein each of the control terminal includes:
a first terminal body portion connected to the control board;
a pad portion that is electrically connected to the first terminal body portion, is provided along the holding member, and includes the exposed face and the contact face, the pad portion serving as the partial portion; and
a second terminal body portion electrically connected to the pad portion and the corresponding electronic component.

12. The electrical junction box to claim 11 , wherein the pad portion extends from a base portion of the first terminal body portion, and
the holding member includes a first embedding portion in which a boundary region between the first terminal body portion and the pad portion of the control terminal is embedded.

13. The electrical junction box to claim 11 , wherein the pad portion extends from a base portion of the second terminal body portion,
the holding member includes a second embedding portion in which a boundary region between the pad portion and the second terminal body portion is embedded, and
the second embedding portion includes a resin face that is coplanar with the exposed face of the pad portion.

14. The electrical junction box according to claim 11 , wherein the second
terminal body portion includes: a terminal face that is exposed from the holding member and is connected to the corresponding electronic component;
and a second exposed face that is located opposite to the terminal face and is exposed from the holding member.

Assignees

• Sumitomo Wiring Systems

Inventors

• Hamano Shinya
• Sasaki Yoshikazu
• Ikeda Jun

Classifications

• H10W70/68

  Shapes or dispositions thereof · CPC title

• H10W70/65

  Shapes or dispositions of interconnections · CPC title

• H10W70/05

  of insulating or insulated package substrates, or of interposers, or of redistribution layers (manufacture or treatment of leadframes H10W70/04) · CPC title

• H10W90/00 Primary

  Package configurations · CPC title

• H10W76/12

  characterised by their shape · CPC title