# US 11,909,240 B2 · Charging device

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- Number: US 11,909,240 B2
- Document ID: US11909240B2
- Status: Granted
- Kind: B2
- Application number: 17/840,777
- Filed: 2022-06-15
- Published: 2023-02-02
- Granted: 2024-02-20
- Earliest claimed: 2021-07-30
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Yoichi Onishi; Tetsuo Yamashita
- Web page: https://patentgrep.com/patent/US11909240B2

## CPC

- H02J 7/70: characterised by the mechanical construction
- B60L 53/11: {DC charging controlled by the charging station, e.g. mode 4}
- B60L 53/16: Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
- B60L 53/22: Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
- B60L 53/51: Photovoltaic means
- H02J 7/40: characterised by the exchange of charge or discharge related data
- H02J 7/342: {The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging (with circuits for polarity protection H02J7/68)}
- H02J 7/35: with light sensitive cells
- H02J 2101/22: Solar energy
- H02J 2105/37: exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV]
- H02J 2207/20: Charging or discharging characterised by the power electronics converter
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 90/14: Plug-in electric vehicles
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- 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
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A charging device disclosed herein includes an input port, an output port, and a relay circuit. The input port is electrically connected to an external power source provided externally and that is configured to be able to input direct-current power and alternating-current power from the external power source. The output port is electrically connected to an electrified vehicle and that outputs direct-current power to the electrified vehicle. The relay circuit relays electric power between the input port and the output port. The relay circuit includes a converter circuit that converts alternating-current power into direct-current power when the alternating-current power is input to the input port, and an input bypass circuit that causes direct-current power to bypass the converter circuit when the direct-current power is input to the input port.

## Claims

### Claim 1

A charging device comprising:
an input port that is electrically connected to an external power source provided externally and that is configured to be able to input direct-current power and alternating-current power from the external power source;
an output port that is electrically connected to an electrified vehicle and that outputs direct-current power to the electrified vehicle; and
a relay circuit that relays power between the input port and the output port,
wherein the relay circuit includes:
a converter circuit that converts alternating-current power into direct-current power when the alternating-current power is input to the input port,
an input bypass circuit that causes direct-current power to bypass the converter circuit when the direct-current power is input to the input port, and
a first input switch that switches between the converter circuit and the input bypass circuit, and
wherein the first input switch is configured to be able to be switched by a user.

### Claim 2 (depends on 1)

The charging device according to claim 1,
wherein the relay circuit further includes:
a second input switch that switches between the converter circuit and the input bypass circuit, and
an input information receiving unit that receives, from the external power source, input information indicating whether power input from the external power source to the input port is direct-current power or alternating-current power, and
wherein the second input switch switches between the converter circuit and the input bypass circuit based on the input information received by the input information receiving unit.

### Claim 3 (depends on 2)

The charging device according to claim 2, wherein a CHAdeMO (registered trademark) standard plug is connected to the input port.

### Claim 4 (depends on 1)

The charging device according to claim 1,
wherein the output port is configured to be able to also output alternating-current power to the electrified vehicle, and
wherein the relay circuit further includes:
an inverter circuit that converts direct-current power into alternating-current power when the alternating-current power is output to the electrified vehicle, and
an output bypass circuit that causes direct-current power to bypass the inverter circuit when the direct-current power is output to the electrified vehicle.

### Claim 5 (depends on 4)

The charging device according to claim 4,
wherein the relay circuit further includes a first output switch that switches between the inverter circuit and the output bypass circuit, and
wherein the first output switch is configured to be able to be switched by the user.

### Claim 6 (depends on 4)

The charging device according to claim 4,
wherein the relay circuit further includes:
a second output switch that switches between the inverter circuit and the output bypass circuit, and
an output information receiving unit that receives output information indicating whether power that is able to be output to the electrified vehicle is direct-current power or alternating-current power, and
wherein the second output switch switches between the inverter circuit and the output bypass circuit based on the output information received by the output information receiving unit.

### Claim 7 (depends on 1)

The charging device according to claim 1,
wherein the input port is configured to be able to be removed from the external power source, and
wherein the charging device is configured to be able to be carried.

### Claim 8 (depends on 1)

The charging device according to claim 1,
wherein an input plug is connected to the input port,
wherein an output plug is connected to the output port, and
wherein a feature for distinguishing between the input plug and the output plug is provided.

### Claim 9 (depends on 1)

The charging device according to claim 1, further comprising a housing that houses the relay circuit,
wherein the input port and the output port are provided on the same surface of the housing or are provided on surfaces located opposite to each other.

### Claim 10

A charging device comprising:
an input port that is electrically connected to an external power source provided externally and that is configured to be able to input direct-current power and alternating-current power from the external power source;
an output port that is electrically connected to an electrified vehicle and that outputs direct-current power to the electrified vehicle, the output port is configured to be able to also output alternating-current power to the electrified vehicle; and
a relay circuit that relays power between the input port and the output port, wherein the relay circuit includes:
a converter circuit that converts alternating-current power into direct-current power when the alternating-current power is input to the input port,
an input bypass circuit that causes direct-current power to bypass the converter circuit when the direct-current power is input to the input port,
an inverter circuit that converts direct-current power into alternating-current power when the alternating-current power is output to the electrified vehicle, and
an output bypass circuit that causes direct-current power to bypass the inverter circuit when the direct-current power is output to the electrified vehicle.

### Claim 11 (depends on 10)

The charging device according to claim 10, wherein the relay circuit further includes a first output switch that switches between the inverter circuit and the output bypass circuit, and
wherein the first output switch is configured to be able to be switched by a user.

### Claim 12 (depends on 10)

The charging device according to claim 10, wherein the relay circuit further includes:
a second output switch that switches between the inverter circuit and the output bypass circuit, and
an output information receiving unit that receives output information indicating whether power that is able to be output to the electrified vehicle is direct-current power or alternating-current power, and
wherein the second output switch switches between the inverter circuit and the output bypass circuit based on the output information received by the output information receiving unit.

### Claim 13

A charging device comprising:
an input port that is electrically connected to an external power source provided externally and that is configured to be able to input direct-current power and alternating-current power from the external power source;
an output port that is electrically connected to an electrified vehicle and that outputs direct-current power to the electrified vehicle; and
a relay circuit that relays power between the input port and the output port,
wherein the relay circuit includes:
a converter circuit that converts alternating-current power into direct-current power when the alternating-current power is input to the input port,
an input bypass circuit that causes direct-current power to bypass the converter circuit when the direct-current power is input to the input port, and
a second input switch that switches between the converter circuit and the input bypass circuit, and
an input information receiving unit that receives, from the external power source, input information indicating whether power input from the external power source to the input port is direct-current power or alternating-current power, and
wherein the second input switch switches between the converter circuit and the input bypass circuit based on the input information received by the input information receiving unit.

### Claim 14 (depends on 13)

The charging device according to claim 13, wherein a CHAdeMO (registered trademark) standard plug is connected to the input port.