# US 12,603,544 B2 · Connection structure

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- Number: US 12,603,544 B2
- Document ID: US12603544B2
- Status: Granted
- Kind: B2
- Application number: 18/400,306
- Filed: 2023-12-29
- Published: 2024-08-29
- Granted: 2026-04-14
- Earliest claimed: 2023-02-27
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Yoji Kiyokawa; Keisuke Yuki
- Web page: https://patentgrep.com/patent/US12603544B2

## CPC

- H02K 5/225: {Terminal boxes or connection arrangements (specially adapted for submersible motors H02K5/132)}
- H02K 11/33: Drive circuits, e.g. power electronics (H02K11/38 takes precedence)
- B60L 15/007: {Physical arrangements or structures of drive train converters specially adapted for the propulsion motors of electric vehicles}
- B60R 16/0207: {Wire harnesses}
- H02M 7/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections}
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P)

## Abstract

A connection structure of the present disclosure includes a housing that houses an inverter that controls a rotary electric machine, a first connector provided in the housing and to which a first cable connected to a battery is connected, a second connector provided in the housing and to which a second cable connected to a device that supplies electric power is connected, a first path that electrically connects the first connector and the inverter, and a second path that electrically connects the first path and the second connector.

## Claims

### Claim 1

A connection structure comprising:
a housing that houses an inverter that controls a rotary electric machine;
a first connector provided in the housing and to which a first cable connected to a battery is connected;
a second connector provided in the housing and to which a second cable connected to a device that supplies electric power is connected;
a first path that electrically connects the first connector and the inverter; and
a second path that electrically connects the first path and the second connector, wherein:
the second cable includes
a third connector connected to the second connector,
a supply cable that supplies electric power to the third connector, and
an output cable that outputs electric power from the third connector; and
the third connector includes
a third path that electrically connects the second path and the supply cable, and
a fourth path that electrically connects the third path and the output cable.

### Claim 2 (depends on 1)

The connection structure according to claim 1, wherein:
the housing is disposed above the rotary electric machine; and
the first connector is provided on a side surface of the housing above the rotary electric machine.