Electrical modules and electrical equipment

Abstract

This technology offers advantages in improving the reliability of joints. [Solution] The electrical module comprises a first electrical substrate and a second electrical substrate, the first electrical substrate having a first main surface, a second main surface opposite to the first main surface, and a first end surface connected to the first main surface and the second main surface, the second electrical substrate having a third main surface, a fourth main surface opposite to the third main surface, and a second end surface connected to the third main surface and the fourth main surface, the first main surface of the first electrical substrate and the third main surface of the second electrical substrate being electrically connected by being joined by a first joining member, the first angle between the first main surface and the first end surface on the inside of the first electrical substrate, and / or the second angle between the third main surface and the second end surface on the inside of the second electrical substrate being obtuse angles of 120 degrees or less.

Claims

1. First electrical circuit board and A second electrical circuit board is provided, The first electrical substrate has a first main surface, a second main surface opposite to the first main surface, and a first end surface connected to the first main surface and the second main surface. The second electrical substrate has a third main surface, a fourth main surface opposite to the third main surface, and a second end surface connected to the third and fourth main surfaces. The first main surface of the first electrical substrate and the third main surface of the second electrical substrate are electrically connected by being joined by the first joining member. The first angle between the first main surface and the first end surface on the inside of the first electrical substrate, and / or the second angle between the third main surface and the second end surface on the inside of the second electrical substrate, are obtuse angles of 120 degrees or less. An electrical module characterized by the following features.

2. The first angle and / or the second angle are obtuse angles of 105 degrees or less. The electrical module according to feature 1.

3. The angle between the second principal surface and the first end surface on the inside of the first electrical substrate, and / or the angle between the fourth principal surface and the second end surface on the inside of the second electrical substrate, is an obtuse angle of 120 degrees or less. The electrical module according to feature 1.

4. The angle formed on the inside of the first electrical substrate by the portion of the first end face connected to the first main surface and the portion of the first end face connected to the second main surface, and / or the angle formed on the inside of the second electrical substrate by the portion of the second end face connected to the third main surface and the portion of the second end face connected to the third main surface, is an obtuse angle of 120 degrees or more. The electrical module according to feature 1.

5. The thickness of at least one of the first and second electrical substrates is 0.1 mm or more and 10 mm or less. The electrical module according to feature 1.

6. The thickness of at least one of the substrates is 5 mm or less. The electrical module according to feature 5.

7. The thickness of at least one of the first and second electrical substrates is 0.4 mm or more and 2 mm or less. The electrical module according to feature 1.

8. Further comprising a third electrical circuit board, The third electrical substrate has a fifth main surface, a sixth main surface opposite to the fifth main surface, and a third end surface connected to the fifth main surface and the sixth main surface. The fourth main surface of the second electrical substrate and the fifth main surface of the third electrical substrate are electrically connected by being joined by the second joining member. The third angle formed by the fourth principal surface and the second end surface on the inside of the second electrical substrate, and / or the fourth angle formed by the fifth principal surface and the third end surface on the inside of the third electrical substrate, are obtuse angles of 120 degrees or less. The electrical module according to feature 1.

9. The second electrical board is a wiring member that electrically connects the first electrical board and the third electrical board and maintains the distance between the first electrical board and the third electrical board. Electronic components are arranged between the first electrical circuit board and the third electrical circuit board. The electrical module according to feature 8.

10. Further equipped with a fourth circuit board, The fourth substrate has a seventh main surface, an eighth main surface opposite to the seventh main surface, and a fourth end surface connected to the seventh main surface and the eighth main surface. The sixth main surface of the third electrical substrate and the seventh main surface of the fourth substrate are electrically connected by being joined by the third joining member. The fifth angle formed between the sixth main surface and the third end surface on the inside of the third electrical substrate, and / or the sixth angle formed between the seventh main surface and the fourth end surface on the inside of the fourth substrate, are obtuse angles of 120 degrees or less. The electrical module according to feature 8.

11. The first main surface of the first electrical substrate and the third main surface of the second electrical substrate face each other in a direction perpendicular to the first main surface. The electrical module according to feature 1.

12. Further equipped with resin reinforcing members, The resin reinforcing member is in contact with the first main surface of the first electrical substrate and in contact with the second end surface of the second electrical substrate. The electrical module according to feature 1.

13. The first main surface of the first electrical substrate and the second end surface of the second electrical substrate face each other in a direction perpendicular to the first main surface. At least the angle between the third main surface and the second end surface on the inside of the second electrical substrate is an obtuse angle of 120 degrees or less. The electrical module according to feature 1.

14. The first main surface of the first electrical substrate and the fourth main surface of the second electrical substrate are electrically connected by being joined by the second joining member. The angle between the fourth principal surface and the second end surface on the inside of the second electrical substrate is obtuse. The electrical module according to feature 13.

15. The second end face is in contact with the first main face. The electrical module according to feature 13.

16. The second end face is in contact with the recess of the first main face. The electrical module according to feature 15.

17. The second end face has a convex shape that protrudes toward the first main face. The electrical module according to feature 15.

18. The second end face is V-shaped or trapezoidal. The electrical module according to feature 17.

19. The first electrical substrate comprises an insulating substrate and a pad positioned on the side of the first main surface relative to the insulating substrate and in contact with the first bonding member. The amount of protrusion of the second end face in the direction perpendicular to the first main surface is greater than or equal to the thickness of the pad in the direction perpendicular to the first main surface. The electrical module according to feature 17.

20. The first electrical substrate comprises an insulating substrate and a pad positioned on the side of the first main surface relative to the insulating substrate and in contact with the first bonding member. The second end face is in contact with the insulating substrate. The electrical module according to feature 17.

21. In the insulating substrate, the portion that contacts the second end face is recessed. The electrical module according to feature 20.

22. The first electrical substrate has a solder resist film disposed on the side of the first main surface relative to the insulating substrate. The electrical module according to feature 19.

23. The first electrical substrate comprises an insulating substrate, a solder resist film disposed on the first main surface side of the insulating substrate, and a pad disposed on the first main surface side of the insulating substrate and in contact with the first bonding member. The second end face is in contact with the solder resist film. The electrical module according to feature 13.

24. The first joining member contacts the second end face, The electrical module according to feature 13.

25. The second joining member contacts the second end face, The electrical module according to feature 14.

26. The first electrical substrate is a substrate that is annular in shape or partially annular in shape. The electrical module according to feature 13.

27. Exterior and The present invention comprises an electrical module according to any one of claims 1 to 26, disposed inside the exterior, An electrical device characterized by the following features.

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