阅读说明：本技术 机动车的蓄电池的冷却 (Cooling of a battery of a motor vehicle ) 是由 O.布拉斯 于 2019-06-19 设计创作，主要内容包括：本发明涉及一种具有电驱动马达(2)的机动车(1),该机动车具有蓄电池(5)、乘客内部空间(10)和内部空间风扇(20),该内部空间风扇构造用于形成空气流。建议设置通风通道(30),该通风通道这样引导空气流,使得空气流能吸收来自蓄电池(5)的热能,并且这样来构造通风通道(30),使得该通风通道将空气流输送给乘客内部空间(10)。(The invention relates to a motor vehicle (1) having an electric drive motor (2), comprising a battery (5), a passenger interior (10) and an interior fan (20) which is designed to create an air flow. It is proposed to provide a ventilation duct (30) which guides the air flow in such a way that the air flow can absorb thermal energy from the battery (5), and to configure the ventilation duct (30) in such a way that it conveys the air flow to the passenger interior (10).)

1. Motor vehicle (1) having an electric drive motor (2), having a battery (5), a passenger interior (10) and an interior fan (20) which is designed to form an air flow, characterized in that a ventilation duct (30) is provided which guides the air flow in such a way that it can absorb thermal energy from the battery (5), and in that the ventilation duct (30) is designed in such a way that it conveys the air flow to the passenger interior (10).

2. Motor vehicle (1) according to the preceding claim, characterized in that the interior fan (20) has an impeller which generates an air flow by means of rotation, wherein the impeller is in particular constructed in the ventilation channel (30).

3. Motor vehicle (1) according to any one of the preceding claims, characterized in that the ventilation channel (30) is configured such that an air flow is formed at least on a part of the surface and/or by the battery (5).

4. Motor vehicle (1) according to any one of the preceding claims, characterized in that the battery (5) has a heat-conducting element which projects at least partially into the ventilation duct (30) in such a way that an air flow can circulate around the heat-conducting element.

5. Motor vehicle (1) according to any one of the preceding claims, characterized in that the interior space fan (20) draws air from the surroundings of the motor vehicle (1) and blows it into the passenger interior space (10) as an air flow.

6. Method (100) for cooling a battery, in particular during charging, characterized by the following steps:

-generating (110) an air flow with an inner space fan (20);

-absorbing (120), by the air flow, the thermal energy generated when the accumulator (5) is charged; and

-introducing (130) an air flow into the passenger interior space (10).

7. Method (100) according to the preceding claim, characterized in that the air flow is regulated according to the thermal energy and/or the charging power discharged by the accumulator (5).

8. Method (100) according to the preceding claim, characterized in that the charging of the battery is regulated such that the preheating of the passenger interior (10) can be performed by means of the air flow.

Technical Field

The invention relates to a motor vehicle having a battery and to a method for cooling a battery of a motor vehicle.

Background

Motor vehicles with an electric drive motor and a battery are known. During charging of the battery, thermal energy is generated, which must be dissipated from the battery. It is known to remove the generated thermal energy by means of a motor cooling fan in the front region of the vehicle, in particular in vehicles with combustion motors. The motor cooling fan is used to cool a combustion motor in a vehicle having the combustion motor. A disadvantage here is that the respective motor cooling fan leads to noise emissions, in particular due to the arrangement. This noise emission can be unpleasant, in particular during the night charging of the battery. Furthermore, motor cooling fans are designed for extremely large volume flows.

Disclosure of Invention

The object of the present invention is to provide a motor vehicle or a method which enables a similar charging of an electrical accumulator while reducing noise emissions and/or noise emissions.

This object is achieved by a motor vehicle according to the independent claim and a method according to the independent method claim.

The motor vehicle also has a passenger interior and an interior fan (Innenraumge ä se) which is designed to create an air flow which in particular conveys air into the passenger interior.

It is particularly advantageous to provide ventilation channels. The ventilation channel is designed in such a way that the air flow can absorb the thermal energy of the battery. The ventilation channel is designed in such a way that it delivers an air flow to the passenger interior. The noise radiation generated by the interior fan is preferably damped or minimized or prevented by the motor vehicle surrounding the passenger interior. The noise perceived outside the motor vehicle is buffered or minimized or prevented.

Advantageous embodiments and refinements of the features specified in the independent claims are obtained by the measures cited in the dependent claims.

It is also advantageous if the motor vehicle has a battery, in particular a battery for supplying the electric drive motor. The motor vehicle also has a passenger interior and an interior fan which is designed to generate an air flow which in particular conveys air into the passenger interior. The air is in particular at least partially drawn from the surroundings of the motor vehicle. Advantageously, the ventilation duct conducts the air flow through the battery and/or through the battery into the passenger interior in a heat-dissipating manner.

Advantageously, the inner space fan has an impeller. The rotating impeller creates an air flow. The impeller is preferably configured in the ventilation channel. A simple generation of the air flow is achieved.

It is considered to be advantageous to configure the ventilation channel in such a way that the air flow is formed at least over a part of the surface and/or by the battery. A better absorption of thermal energy is achieved by the air flow.

It is particularly advantageous if the battery has a heat-conducting element which projects at least partially into the ventilation duct in such a way that an air flow can circulate around the heat-conducting element. The heat can be better removed to the air flow and thus from the battery.

Advantageously, the interior fan draws air from the surroundings of the vehicle and blows it into the passenger interior as an air flow. The air is in particular at least partially drawn from the surroundings of the motor vehicle.

The invention advantageously relates to a method for cooling a battery, in particular during charging and/or discharging of the battery, comprising the following steps:

-generating an air flow with an inner space fan;

-absorbing by the air flow the thermal energy generated when the electric storage is charged; and

-introducing an air flow into the passenger interior space.

Advantageously, the air flow is regulated as a function of the thermal energy and/or charging power discharged by the electrical storage device. Advantageously, the noise development can be reduced again. This is achieved by regulating the generation of the air flow in dependence on the generated thermal energy and/or charging power.

It is considered to be advantageous to regulate the charging of the electrical storage device in such a way that the preheating of the passenger interior can be carried out by means of the air flow. Especially the charging is performed shortly before use.

Drawings

Embodiments are shown in the drawings and will be explained in detail in the following description. In the drawings:

fig. 1 shows a motor vehicle according to the invention; and is

Fig. 2 shows a method according to the invention.