Printed circuit board having a plurality of electronic components arranged on the printed circuit board in at least one group

Patent metadata

Field	Value
Publication number	US-10139066-B2
Application number	US-201515520041-A
Country	US
Kind code	B2
Filing date	Sep 30, 2015
Priority date	Oct 21, 2014
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

A printed circuit board ( 1 ) with multiple electronic components ( 2, 2′, 2″, 2″′, 2″″ ) arranged on it in at least one group (G 1, G 2, G 3 ), each of the electronic components ( 2, 2′, 2″, 2″′, 2″″ ) having a first and a second electrical component contact surface ( 3′, 3″ ) facing the printed circuit board ( 1 ), the component contact surfaces ( 3′, 3″ ) being connected with corresponding printed circuit board contact surfaces ( 6, 7, 8 ) arranged on the printed circuit board ( 1 ), successive electronic components ( 2, 2′, 2″, 2′″, 2″″ ) being connected in series to form a string, the string having a wave-shaped course, the electronic components ( 2, 2′, 2″, 2″′, 2″″ ) of the string being arranged on the printed circuit board ( 1 ) in the form of a matrix with at least two rows (Z 1, Z 2, Z 3 ) and at least two columns (S 1, . . . , S 6 ), and the string alternately running up and down along columns (S 1, . . . , S 6 ) that are arranged next to one another.

First claim

The invention claimed is:

1. A printed circuit board ( 1 ), comprising:
a plurality of electronic components ( 2 , 2 ′, 2 ″, 2 ′″, 2 ″″) arranged on the printed circuit board in at least one group (G 1 , G 2 , G 3 ), each of the plurality of electronic components ( 2 , 2 ′, 2 ″, 2 ′″, 2 ″″) having a first and a second electrical component contact surface ( 3 ′, 3 ″) facing the printed circuit board ( 1 ), the first and second electrical component contact surfaces ( 3 ′, 3 ″) being connected with corresponding printed circuit board contact surfaces ( 6 , 7 , 8 ) arranged on the printed circuit board ( 1 ), successive electronic components of the plurality of electronic components ( 2 , 2 ′, 2 ″, 2 ′″, 2 ″″) being connected in series to form a string, the string having a wave-shaped course, the plurality of electronic components ( 2 , 2 ′, 2 ″, 2 ′″, 2 ″″) of the string being arranged on the printed circuit board ( 1 ) in a matrix with at least two rows (Z 1 , Z 2 , Z 3 ) and at least two columns (S 1 , . . . , S 6 ), and the string alternately running up and down along columns (S 1 , . . . , S 6 ) that are arranged next to one another, successive electronic components of the plurality of electronic components ( 2 , 2 ′, 2 ″, 2 ′″, 2 ″″) within a column forming a series-connected vertical component pair by a common vertical printed circuit board contact surface ( 7 ) associated with the series-connected vertical component pair, and
the plurality of electronic components ( 2 , 2 ″″) of every even-numbered column (S 2 , S 4 ) of the top row (Z 1 ) forming a horizontal component pair with an electronic component ( 2 ) of the plurality of electronic components of a following column (S 3 , S 5 ) of the top row (Z 1 ), and the plurality of electronic components ( 2 ″) of every odd-numbered column (S 1 , S 3 , S 5 ) of the bottom row (Z 2 , Z 3 ) forming a horizontal component pair with an electronic component ( 2 ′″) of the plurality of electronic components of the bottom row (Z 2 , Z 3 ) of a following column (S 2 , S 4 , S 6 ), or
the plurality of electronic components ( 2 ) of every odd-numbered column (S 1 , S 3 , S 5 ) of the top row (Z 1 ) forming a horizontal component pair with an electronic component ( 2 ) of the plurality of electronic components of a following column (S 2 , S 4 , S 6 ) of the top row, and the plurality of electronic components ( 2 ) of every even-numbered column (S 2 , S 4 ) of the bottom row (Z 2 , Z 3 ) forming a horizontal component pair with an electronic component ( 2 ) of the plurality of electronic components of the bottom row (Z 2 , Z 3 ) of a following column (S 3 , S 5 ),
every horizontal component pair being connected by a common horizontal printed circuit board contact surface ( 8 ) associated with the horizontal component pair,
wherein every common printed circuit board contact surface ( 6 , 7 , 8 ) is associated with a conductor track ( 5 ), the common printed circuit board contact surfaces ( 6 , 7 , 8 ) being wider than the conductor track ( 5 ) and at least 1 mm wide, and the common printed circuit board contact surfaces ( 6 , 7 , 8 ) having an area of at least 2 mm 2 .

2. The printed circuit board ( 1 ) of claim 1 , wherein a number n of the plurality of electronic components ( 2 ) is associated with n+1 printed circuit board contact surfaces ( 6 ).

3. The printed circuit board ( 1 ) of claim 1 , wherein the conductor tracks ( 5 ) run essentially parallel to one another.

4. The printed circuit board ( 1 ) of claim 3 , wherein the conductor tracks ( 5 ) are brought out only before every second column.

5. The printed circuit board ( 1 ) of claim 1 , wherein the conductor tracks ( 5 ) are brought out between horizontal printed circuit board contact surfaces that are arranged opposite one another and within the same row.

6. The printed circuit board ( 1 ) of claim 1 , wherein the conductor tracks ( 5 ) are brought out exactly to one side of the printed circuit board ( 1 ).

7. The printed circuit board ( 1 ) of claim 1 , wherein the plurality of electronic component ( 2 ) comprise light-emitting electronic components.

8. The printed circuit board ( 1 ) of claim 7 , wherein the light-emitting electronic components comprise semiconductor devices.

9. The printed circuit board ( 1 ) of claim 8 , wherein the semiconductor devices comprise LEDs.

10. The printed circuit board ( 1 ) of claim 9 , wherein the LEDs comprise an optical imaging system downstream thereof.

11. The printed circuit board ( 1 ) of claim 1 , wherein every electronic component ( 2 ) of the plurality of electronic components has a light-emitting surface ( 9 ), the light-emitting surface being at least 0.05 mm 2 , 0.2 mm 2 , 0.4 mm 2 , 0.5 mm 2 , or 1 mm 2 .

12. The printed circuit board ( 1 ) of claim 1 , wherein a base area ( 4 ) of the plurality of electronic components is between 0.5 mm 2 and 10 mm 2 .

13. The printed circuit board ( 1 ) of claim 1 , wherein a length and width of the printed circuit board ( 1 ) are each at least 3 cm, 4 cm, 5 cm, or 6 cm.

14. The printed circuit board ( 1 ) of claim 1 , wherein the plurality of electronic components ( 2 ) are arranged in exactly two rows.

15. The printed circuit board ( 1 ) of claim 1 , wherein the plurality of electronic components ( 2 ) are arranged in at least three, four, or more rows.

16. The printed circuit board ( 1 ) of claim 1 , wherein the plurality of electronic components ( 2 ) are arranged in at least three, four, or more columns.

17. The printed circuit board ( 1 ) of claim 1 , wherein between five and ten columns of the plurality of electronic components ( 2 ) are provided.

18. The printed circuit board ( 1 ) of claim 1 , wherein the at least one group comprises at least two groups (G 1 , G 2 ) that are rotated by 180° with respect to one another and the conductor tracks ( 5 ) always being brought out between the horizontal printed circuit board contact surfaces ( 8 ) of the row that is spaced farthest away from the opposite group (G 1 , G 2 ).

19. The printed circuit board ( 1 ) of claim 1 , wherein the at least one group comprises at least two groups rotated by 90° to one another.

20. The printed circuit board ( 1 ) of claim 1 , wherein the printed circuit board ( 1 ) is thermally connected with a heat sink.

21. A system, comprising:
at least one headlight for producing a dynamic light pattern, the at least one headlight comprising at least one printed circuit board ( 1 ) comprising:
a plurality of electronic components ( 2 , 2 ′, 2 ″, 2 ′″, 2 ″″) arranged on the printed circuit board in at least one group (G 1 , G 2 , G 3 ), each of the plurality of electronic components ( 2 , 2 ′, 2 ″, 2 ′″, 2 ″″) having a first and a second electrical component contact surface ( 3 ′, 3 ″)facing the printed circuit board ( 1 ), the first and second electrical component contact surfaces ( 3 ′, 3 ″) being connected with corresponding printed circuit board contact surfaces ( 6 , 7 , 8 ) arranged on the printed circuit board ( 1 ), successive electronic components of the plurality of electronic components ( 2 , 2 ′, 2 ″, 2 ′″, 2 ″″) being connected in series to form a string, the string having a wave-shaped course, the plurality of electronic components ( 2 , 2 ′, 2 ″, 2 ′″, 2 ″″) of the string being arranged on the printed circuit board ( 1 ) in a matrix with at least two rows (Z 1 , Z 2 , Z 3 ) and at least two columns (S 1 , . . ., S 6 ), and the string alternately running up and down along columns (S 1 , . . .

Assignees

• Zkw Group Gmbh

Inventors

• Weber Emanuel
• Gruber Thomas

Classifications

• H10W90/00 Primary

  Package configurations · CPC title

• F21S41/153

  arranged in a matrix · CPC title

• H05B45/48

  having LEDs organised in strings and incorporating parallel shunting devices · CPC title

• H05B45/14

  using electrical feedback from LEDs or from LED modules · CPC title

• H05K2201/10522

  Adjacent components · CPC title