Enhanced ventilation system for an electric vehicle

Abstract

Ventilation system (10) for an electric vehicle (1), comprising an air conditioning system (100) of the electric vehicle (1) for ventilating an interior of the electric vehicle (1) with air drawn in from an environment (2) of the electric vehicle (1) by means of an air opening arranged on an outside of the electric vehicle and an air opening (101) of the electric vehicle (1) arranged on an outside of the electric vehicle (1), which is directly connected to the air conditioning system via a hose and is provided as a dedicated exhaust opening for ventilating the environment (2) of the electric vehicle (1).

Description

[0001] The invention relates to a ventilation system for an electric vehicle, comprising an electric vehicle's climate control system and an air opening of the climate control system arranged on the exterior of the electric vehicle. The invention further relates to an electric vehicle and a method for ventilation using an electric vehicle.

[0002] Ventilation systems of the type mentioned above, in various configurations, represent the state of the art and serve to ventilate the interior of an electric vehicle. The climate control system, also known as an air conditioning system, draws in air from the vehicle's surroundings through an air intake located on the exterior of the vehicle and uses this air to ventilate the vehicle's interior.

[0003] DE 698 31 052 T2 is cited only as an example, which discloses a ventilation system for an electric vehicle with an air conditioning system. The ventilation system includes an air conditioning system and an air opening of the air conditioning system located on the outside of the electric vehicle, which is designed to draw in air from the vehicle's surroundings.

[0004] The climate control system can raise or lower the temperature of the air drawn in from the environment in order to heat or cool the interior of the electric vehicle, i.e., to temper the air located in the interior relative to the environment.

[0005] It is also known in particular to use a ventilation system of an electric vehicle connected to a charging device to temperature-control a garage, wherein tempered air blown out by an air opening of the ventilation system located on the inside of the electric vehicle by an air conditioning system of the electric vehicle flows into the garage through a window opening, door or tailgate of the electric vehicle.

[0006] An electric vehicle's traction battery generates ohmic waste heat and / or chemical reaction heat during each charging process, which increases the battery's temperature and usually necessitates cooling. However, the electrical energy required for cooling reduces charging efficiency.

[0007] DE 10 2016 004 851 A1 instead proposes using heat generated by a traction battery during charging for external heating and discloses a heating system for an electric vehicle, which includes a heat exchanger arranged on a traction battery of the electric vehicle and two fluid openings of the heat exchanger arranged on an outside of the electric vehicle, which are provided for integrating the heat exchanger into an external hot water circuit, so that water flowing in the external hot water circuit is heated by the heat exchanger.

[0008] Known systems for ventilating and / or temperature-controlling an electric vehicle, or using an electric vehicle, have limited usability in terms of space or fluidity, or are based on improvisation.

[0009] It is therefore an object of the invention to provide a ventilation system for an electric vehicle which enables a planned extended use. Further objects of the invention are to provide an electric vehicle and to propose a method for ventilation using an electric vehicle.

[0010] An object of the invention is a ventilation system for an electric vehicle, comprising an air conditioning system of the electric vehicle and an air opening of the air conditioning system arranged on an exterior surface of the electric vehicle. The air opening belongs to the air conditioning system and is a dedicated air opening, distinct from an improvised air opening, such as a window, door, tailgate, or the like. For example, the air opening is directly connected to the air conditioning system via a hose. Exterior air openings of known ventilation systems are intake openings.

[0011] According to the invention, the air opening is provided for ventilating the area surrounding the electric vehicle. In other words, the external air opening according to the invention is a dedicated exhaust opening. Naturally, the ventilation system according to the invention can additionally include an external intake opening in a known manner, i.e., two or more than two air openings arranged on the exterior of the electric vehicle, at least one of which is designed to blow air into the area surrounding the electric vehicle. The external air opening thus specifically expands the usability of the ventilation system.

[0012] In one embodiment, the air opening comprises a plurality of louvers. The louvers determine the direction of an airflow generated by the climate control system and exiting the air opening.

[0013] The louvers are advantageously mounted on the air opening so they can pivot. Using these louvers, the electric vehicle user can variably adjust the direction of the airflow exiting the air opening.

[0014] Apart from that, the air opening can be designed as a nozzle, i.e., have a cross-sectional area that decreases in the direction of flow, which is associated with a high flow velocity of the airflow.

[0015] The air vent allows the user, in particular, to warm a hand outside the vehicle using the airflow, for example during a tire change, or to cool or dry a wet hand, for example during a manual car wash, to name just a few examples of the intended extended usability.

[0016] Ideally, the ventilation system comprises a frame separate from the air opening and detachably lockable to it, and / or an air hose separate from the air opening and detachably lockable to it. The frame ensures an aesthetically pleasing appearance of the air opening and can be made of or comprised of plastic. The air hose allows for the ventilation of an area located at a distance from the electric vehicle, such as a tent or garage. Specifically, the frame and air hose can be optionally locked to the air opening as needed.

[0017] The ventilation system preferably includes a control unit of the electric vehicle that is functionally connected to the climate control system. The control unit can be designed separately from the climate control system or as a module of the climate control system, i.e., integrated into it. The control unit is configured to control the operation of the external air intake.

[0018] The ventilation system can further include an external temperature sensor, functionally connected to the control unit, for detecting the temperature of the air surrounding the electric vehicle. The external temperature sensor is configured to provide the control unit with a signal that depends on the detected temperature. The control unit is then configured to adjust the temperature of the airflow exiting the air outlet based on this signal. The temperature sensor and the control unit thus function as a thermostat.

[0019] Advantageously, the ventilation system includes an external switch for turning the climate control system on and off and / or a wireless communication unit functionally linked to the electric vehicle's control unit to provide a wireless connection to an external mobile device. The external switch allows the user to operate the ventilation system from outside the vehicle. The communication unit allows the user to operate the ventilation system via a mobile device, specifically via an application (app) installed on the mobile device, using a wireless connection. Within the range of the wireless connection, the communication unit allows the user to remotely control the ventilation system.

[0020] In some embodiments, the exterior is defined by a body panel of the electric vehicle, and this body panel is designed as a hood, tailgate, cargo area, door, or fender. In other words, the air intake is integrated into the body of the electric vehicle.

[0021] Another aspect of the invention is an electric vehicle with a ventilation system. The ventilation system is designed to ventilate the electric vehicle.

[0022] According to the invention, the ventilation system is designed according to one embodiment of the invention. The ventilation system is additionally designed to ventilate the area surrounding the electric vehicle. In this way, the usability of the ventilation system is extended in a predetermined manner.

[0023] Another aspect of the invention is a method for ventilation using an electric vehicle. The ventilation can include temperature control, i.e., heating or cooling, of air arranged in an enclosed space.

[0024] According to the invention, an electric vehicle is arranged in an enclosed space according to one embodiment of the invention, or an enclosed space is fluidly connected to the air opening of an electric vehicle via the air hose of the ventilation system according to one embodiment of the invention. The climate control system of the electric vehicle is then operated and ventilates the enclosed space. In short, the enclosed space is ventilated by means of the electric vehicle's ventilation system; that is, the electric vehicle acts as a ventilation system. Thanks to the extended usability of the ventilation system, the electric vehicle can eliminate the need for a dedicated ventilation system assigned to the enclosed space.

[0025] Apart from that, the electric vehicle can be used anywhere and at any time to warm, cool and / or dry a hand, for example during a tire change or car wash.

[0026] A significant advantage of the ventilation system according to the invention is that the ventilation system is intended for extended use and can replace dedicated ventilation systems.

[0027] The invention is schematically illustrated in the drawings with reference to one embodiment and is further described with reference to the drawings. It shows: Fig. 1 in a partial side view an electric vehicle according to an embodiment of the invention; Fig. 2 a perspective top view of an air opening of a ventilation system of the in Fig. 1 electric vehicle shown; Fig. 3 a block diagram of a ventilation system according to an embodiment of the invention; Fig. 4 one to the in Fig. The air opening shown corresponds to the air hose of the ventilation system.

[0028] Fig. Figure 1 shows a partial side view of an electric vehicle 1 according to an embodiment of the invention. The electric vehicle 1 comprises a ventilation system 10 according to an embodiment of the invention. The ventilation system 10 includes a climate control system 100 known per se (see Figure 1). Fig. 3) and an air opening 101 of the climate control system 100 arranged on an outside of the electric vehicle 1. The air opening 101 is intended for ventilating an environment 2 of the electric vehicle 1.

[0029] The outer surface can be defined by a body part 108 of the electric vehicle 1. In particular, the body part 108 is designed as a front flap, as a tailgate, as a loading platform, as a door or – as shown here only by way of example and without limitation – as a fender.

[0030] Fig. Figure 2 shows a perspective top view of the air opening 101 of the ventilation system of the building in Fig. 1. Electric vehicle shown. Ideally, the air opening 101 comprises a plurality of louvers 1010. The louvers 1010 can be pivotably mounted on the air opening 101. The air opening 101 preferably comprises a frame 102 that is separate from the air opening 101 and detachably processable with the air opening 101.

[0031] Fig. Figure 3 shows a block diagram of a ventilation system 10 according to an embodiment of the invention. The ventilation system 10 can include a control unit 104 of the electric vehicle 1 that is functionally connected to the climate control system 100. The ventilation system 10 can also include an external temperature sensor 105 that is functionally connected to the control unit 104 for detecting the temperature of the air in the environment 2 of the electric vehicle 1.

[0032] Advantageously, the ventilation system 10 includes an external switch 106 for switching the climate control system 100 on and off. Alternatively or additionally, the electric vehicle 1 can include a wireless communication unit 107 of the electric vehicle 1 functionally connected to the control unit 104 for providing a wireless connection 1070 to an external mobile device 3.

[0033] The ventilation system can further comprise an air hose 103 that is separate from the air opening 101 and can be detachably locked to the air opening 101.

[0034] Fig. 4 shows the one that goes to the one in Fig. 2 air opening 101 corresponding air hose 103 of the ventilation system 10.

[0035] Ventilation system 10, for example, is designed to ventilate an enclosed space. The procedure for ventilating the enclosed space is carried out as follows.

[0036] The electric vehicle 1 is arranged in an enclosed space. Alternatively, the enclosed space is fluidly connected to the air opening 101 of the electric vehicle 1 via the air hose 103 of the ventilation system 10.

[0037] The climate control system 100 of the electric vehicle 1 is operated and ventilates the enclosed space. REFERENCE MARK LIST: 1 electric vehicle 10 Ventilation system 100 climate systems 101 Air vent 102 frames 103 Air hose 104 Control unit 105 Temperature sensor 106 switches 107 wireless communication unit 108 Body part 1070 wireless connection 1010 lamella 2 Environment 3 mobile devices QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 69831052 T2

[0003] DE 102016004851 A1

[0007]

Claims

[1] Ventilation system (10) for an electric vehicle (1), comprising an air conditioning system (100) of the electric vehicle (1) and an air opening (101) of the electric vehicle (1) arranged on an outside of the electric vehicle (1), which is provided for ventilating an environment (2) of the electric vehicle (1). [2] Ventilation system according to claim 1, wherein the air opening (101) comprises a plurality of louvers (1010). [3] Ventilation system according to claim 2, wherein the louvers (1010) are pivotably mounted on the air opening (101). [4] Ventilation system according to any one of claims 1 to 3, wherein the air opening (101) comprises a frame (102) separate from the air opening (101) and detachably lockable to the air opening (101) and / or the ventilation system comprises an air hose (103) separate from the air opening (101) and detachably lockable to the air opening (101). [5] Ventilation system according to one of claims 1 to 4, comprising a control unit (104) of the electric vehicle (1) functionally connected to the climate system (100). [6] Ventilation system according to claim 5, comprising an external temperature sensor (105) functionally connected to the control unit (104) for detecting the temperature of an air in the environment (2) of the electric vehicle (1). [7] Ventilation system according to claim 5 or 6, comprising an external switch (106) for switching on and off the climate control system (100) and / or a wireless communication unit (107) functionally connected to the control unit (104) of the electric vehicle (1) for providing a wireless connection (1070) to an external mobile terminal (3). [8] Ventilation system according to any one of claims 1 to 7, wherein the outside is defined by a body part (108) of the electric vehicle (1) and the body part (108) is designed as a front flap, a tailgate, a loading area, a door or a fender. [9] Electric vehicle (1) with a ventilation system (10) according to any one of claims 1 to 8. [10] Method for ventilation using an electric vehicle, in which - an electric vehicle (1) according to claim 9 is arranged in an enclosed space or an enclosed space is fluidly connected to the air opening (101) of an electric vehicle (1) according to claim 9 via the air hose (103) of the ventilation system (10); - the climate control system (100) of the electric vehicle (1) is operated and ventilates the enclosed space.

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