Blinking device

Patent metadata

Field	Value
Publication number	US-9966212-B2
Application number	US-201314648695-A
Country	US
Kind code	B2
Filing date	Dec 6, 2013
Priority date	Dec 21, 2012
Publication date	May 8, 2018
Grant date	May 8, 2018

Abstract

The blinking device includes multiple power terminals, multiple load terminals, multiple contact switches, a control circuit, and multiple mounting substrates, and a case in a box shape for accommodating these therein. The multiple contact switches are individually associated with multiple power supply paths individually connected to multiple pairs each defined as a pair of one power terminal of the multiple power terminals and one load terminal of the multiple load terminals. At least one power supply path of the multiple power supply paths is formed on at least one of a front face, where at least one contact switch is mounted, and a rear face, where no contact switch is mounted, of each of the multiple mounting substrates. The case is configured to accommodate the multiple mounting substrates so that the multiple mounting substrates are stacked in a thickness direction.

First claim

The invention claimed is:

1. A blinking device, comprising:
multiple power terminals to be connected to a power supply;
multiple load terminals to be individually connected to different loads;
multiple contact switches individually associated with multiple power supply paths individually connected to multiple pairs each defined as a pair of one power terminal of the multiple power terminals and one load terminal of the multiple load terminals;
a control circuit for turning on and off the multiple contact switches;
multiple mounting substrates each on which at least one contact switch of the multiple contact switches is mounted; and
a case in a box shape for accommodating therein the multiple power terminals, the multiple load terminals, the control circuit, and the multiple mounting substrates,
at least one power supply path of the multiple power supply paths being formed on at least one of a front face, where at least one contact switch is mounted, and a rear face, where no contact switch is mounted, of each of the multiple mounting substrates, and
the case being configured to accommodate the multiple mounting substrates so that the multiple mounting substrates are stacked in a thickness direction of each of the multiple mounting substrates.

2. The blinking device according to claim 1 , wherein the case is configured to accommodate adjacent two mounting substrates of the multiple mounting substrates so that the rear faces of the adjacent two mounting substrates face each other.

3. The blinking device according to claim 1 , wherein:
each of the multiple power terminals includes a power supply dedicated terminal plate to be connected to a power supply cable, and an insertion part inserted into through holes individually penetrating through the multiple mounting substrates in a thickness direction;
each of the multiple load terminals includes a load dedicated terminal plate to be connected to a load cable, and an insertion part inserted into through holes individually penetrating through the multiple mounting substrates in a thickness direction;
each of the multiple mounting substrates includes a connector electrically connected to the at least one power supply path; and
the connector of one mounting substrate allows insertion of an insertion part from a different mounting substrate and is electrically connected to the insertion part from the different mounting substrate.

4. The blinking device according to claim 2 , wherein an insulating member is situated between the two mounting substrates.

5. The blinking device according to claim 3 , wherein the through hole of one mounting substrate of adjacent two mounting substrates of the multiple mounting substrates exposes the connector of the other mounting substrate.

6. The blinking device according to claim 2 , further comprising a spacer for keeping a distance between the two mounting substrates constant.

7. The blinking device according to claim 1 , further comprising a control substrate,
wherein:
multiple circuit parts constituting the control circuit are mounted on the control substrate;
a conduction path electrically interconnecting the multiple circuit parts is formed on a surface of the control substrate; and
each of the multiple power supply paths is made of a copper foil thicker than a copper foil for forming the conduction path.

8. The blinking device according to claim 1 , wherein a semiconductor switch connected in parallel with a corresponding one of the multiple contact switches is mounted on each of the multiple mounting substrates.

9. The blinking device according to claim 8 , further comprising a temperature sensing element for sensing a temperature of the semiconductor switch,
wherein:
the semiconductor switch is situated so that a length direction of the semiconductor switch is parallel with the front face of a corresponding one of the multiple mounting substrates; and
the temperature sensing element is mounted on the front face of the corresponding one of the multiple mounting substrates with the semiconductor switch in-between so that a length direction of the temperature sensing element is parallel with the front face of the corresponding one.

10. The blinking device according to claim 9 , wherein the semiconductor switch includes a face which faces the front face of the corresponding one of the multiple mounting substrates and is in contact with this front face.

11. The blinking device according to claim 9 , further comprising:
an overvoltage protection element for protecting the semiconductor switch from overvoltage; and
a second temperature sensing element for sensing a temperature of the overvoltage protection element.

12. The blinking device according to claim 11 , wherein the temperature sensing element doubles as the second temperature sensing element.

13. The blinking device according to claim 1 , wherein at least one patterned copper foil including the at least one multiple power supply paths is formed on each of the front face and the rear face of each of the multiple mounting substrates.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Sumino Yasuhiro
• Shibata Kiwamu

Classifications

• H01H2009/545

  comprising a parallel semiconductor switch being fired optically, e.g. using a photocoupler, · CPC title

• H01H47/002 Primary

  Monitoring or fail-safe circuits · CPC title

• H01H2085/0412

  specially adapted for being mounted on a printed circuit board · CPC title

• H01H2047/025

  with taking into account of the thermal influences, e.g. change in resistivity of the coil or being adapted to high temperatures · CPC title

• H01H47/00 Primary

  Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current · CPC title