IP Library Granted Patent US 10,943,752
Granted Patent B2
US 10,943,752 · App. 15/772,434 · Granted Mar 9, 2021

Relay cooling device

Inventors: Hiroomi Hiramitsu (Yokkaichi, JP); Tomotaka Kurozu (Yokkaichi, JP)
Assignees: AUTONETWORKS TECHNOLOGIES, LTD.; SUMITOMO WIRING SYSTEMS, LTD.; SUMITOMO ELECTRIC INDUSTRIES, LTD.
H01H50/12H01H45/12H05K7/20236H05K7/20272Y02T10/62
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Quick Facts
Patent No.
US 10,943,752
App. No.
15/772,434
Granted
Mar 9, 2021
Kind
B2
Abstract

A relay cooling device includes a container, a liquid coolant that is stored in the container, and a relay that is immersed in the liquid coolant.

Claims (56)

1. A relay cooling device comprising:

a container;

a liquid coolant stored in the container; and

a relay immersed in the liquid coolant,

wherein the relay has

a relay unit, and

a case in which the relay unit is accommodated,

the relay unit has

a fixed contact,

a movable member that has a movable contact that is capable of coming into contact with the fixed contact,

a coil arranged so as to surround a core, and

a spring that biases the movable member in a direction of moving toward the fixed contact,

the case has

a coil housing chamber that accommodates the coil, and

a contact housing chamber that is separated from the coil housing chamber by a dividing wall, and accommodates at least the fixed contact and the movable member, and

a through-hole is provided in the coil housing chamber.

2. The relay cooling device according to claim 1 ,

further comprising a flow generation means that causes the liquid coolant in the container to flow.

3. The relay cooling device according to claim 2 ,

wherein

a pipe through which the liquid coolant flows is connected to the container, and the flow generation means is a pump that is connected to the pipe.

4. The relay cooling device according to claim 2 ,

wherein

the liquid coolant is electrically insulating.

5. A relay cooling device comprising:

a container;

a liquid coolant stored in the container; and

a relay immersed in the liquid coolant,

wherein the relay has

a relay unit, and

a case in which the relay unit is accommodated,

the relay unit has

a fixed contact,

a movable member that has a movable contact that is capable of coming into contact with the fixed contact,

a coil arranged so as to surround a core, and

a spring that biases the movable member in a direction of moving toward the fixed contact,

the case has

a coil housing chamber that accommodates the coil, and

a contact housing chamber that is separated from the coil housing chamber by a dividing wall, and accommodates at least the fixed contact and the movable member, and

a through-hole is provided in the contact housing chamber.

6. A relay cooling device comprising:

a container;

a liquid coolant stored in the container; and

a relay immersed in the liquid coolant,

wherein the relay has

a relay unit, and

a case in which the relay unit is accommodated,

the relay unit has

a fixed contact,

a movable member that has a movable contact that is capable of coming into contact with the fixed contact,

a coil arranged so as to surround a core, and

a spring that biases the movable member in a direction of moving toward the fixed contact,

the case has

a coil housing chamber that accommodates the coil, and

a contact housing chamber that is separated from the coil housing chamber by a dividing wall, and accommodates at least the fixed contact and the movable member, and

a through-hole is provided in both the coil housing chamber and the contact housing chamber.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 30, 2018
From: HIRAMITSU, HIROOMI; KUROZU, TOMOTAKA
To: AUTONETWORKS TECHNOLOGIES, LTD.; SUMITOMO WIRING SYSTEMS, LTD.; SUMITOMO ELECTRIC INDUSTRIES, LTD.
Reel/Frame 045672/0275 →
Priority Claims (1)
JP JP2015-220343 · Nov 10, 2015 · national
Continuity (1)
Related Publication 20180330906A1 · Nov 15, 2018
Cited By (1)
US 12,500,398