Electric vehicle heating system and electric vehicle

Abstract

The utility model relates to an electric vehicle heating system which comprises an eddy current heating device, a first heat exchange pipeline and one or more heat exchange pieces connected with the first heat exchange pipeline, the eddy current heating device is electrically connected with a battery pack pulse heating system of an electric vehicle, and the eddy current heating device is used for heating a heat-conducting medium in the first heat exchange pipeline. The one or more heat exchange pieces comprise at least one in-vehicle heat exchange piece used for dissipating at least one part of heat of the heat-conducting medium to the in-vehicle space of the electric vehicle. The utility model further provides an electric vehicle. The eddy current heating device is used for heating the heat exchange medium of the first heat exchange pipeline, heat in the heat exchange medium is dissipated to the space in the vehicle to increase the temperature in the vehicle, and the problem that the endurance of the electric vehicle is too short due to high energy consumption of a vehicle-mounted air conditioner in a low-temperature environment is solved; the heat in the heat exchange medium is dissipated to the automobile door and the door handle, so that ice at the automobile door and the door handle can be melted, and a user can normally open the automobile door.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, and particularly relates to an electric vehicle heating system and an electric vehicle. Background Art

[0002] Some electric vehicles are equipped with a battery pack pulse heating system, which can heat the battery pack by using the battery pack pulse heating system in a low-temperature environment to improve the battery performance. For example, the Chinese patent application with the application number CN202110481639.6 and the theme name of a pulse heating method, device and vehicle for a power battery adopts pulse heating technology. In the prior art, electric vehicles rely on air conditioners to increase the temperature inside the vehicle. The electric vehicles in the prior art face the following technical problems:

[0003] In a low-temperature environment, the initial temperature inside the vehicle is relatively low. If the in-vehicle air conditioner is turned on in advance to increase the temperature inside the vehicle, it will have an adverse impact on the battery life of the electric vehicle, and the energy consumption of the in-vehicle air conditioner is high in a low-temperature environment, resulting in a problem of too low battery life of the electric vehicle;

[0004] In a low-temperature environment, especially in a low-temperature rain and snow environment, the doors and door handles are prone to icing. It is difficult to operate the doors and door handles after they are frozen, which makes it difficult to open the doors normally, and even makes it impossible to open the doors. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an electric vehicle heating system and an electric vehicle to alleviate or eliminate at least one of the above technical problems.

[0006] An electric vehicle heating system according to the utility model includes an eddy current heating device, a first heat exchange pipeline, and one or more heat exchange elements connected to the first heat exchange pipeline through a connection pipeline. The eddy current heating device is connected to the battery pack pulse heating system of the electric vehicle. The eddy current heating device is used to heat the heat conduction medium in the first heat exchange pipeline. One or more of the heat exchange elements include at least one in-vehicle heat exchange element for dissipating at least a part of the heat of the heat conduction medium to the interior space of the electric vehicle.

[0007] Optionally, at least one of the in-vehicle heat exchange elements is arranged on the floor of the electric vehicle.

[0008] Optionally, at least one of the in-vehicle heat exchange elements is arranged in the seat of the electric vehicle.

[0009] Optionally, at least one of the in-vehicle heat exchange elements is a second heat exchange pipeline.

[0010] Optionally, one or more of the heat exchange elements include at least one door heat exchange element for dissipating at least a part of the heat of the heat conduction medium to the door of the electric vehicle.

[0011] Optionally, at least one of the door heat exchangers includes a door handle heat exchange portion for dissipating at least a part of the heat of the heat transfer medium to the door handle of the door.

[0012] Optionally, the door heat exchanger is a third heat exchange pipeline arranged along the edge of the door as a whole. A first access point, a first switching valve, and a second access point are sequentially arranged on the connecting pipeline. The inlet end of the third heat exchange pipeline is connected to the connecting pipeline through the first access point, and the outlet end of the third heat exchange pipeline is connected to the connecting pipeline through the second access point. A second switching valve is arranged at the inlet end of the third heat exchange pipeline.

[0013] Optionally, it further includes a storage pot for storing the heat transfer medium and a medium pump for pumping the heat transfer medium. The storage pot, the medium pump, the first heat exchange pipeline, and one or more of the heat exchangers are connected into a loop through the connecting pipeline.

[0014] Optionally, the first heat exchange pipeline is a metal pipeline.

[0015] The present utility model also proposes an electric vehicle, including the heating system described in any one of the above.

[0016] The electric vehicle heating system proposed by the present utility model uses the alternating current generated by the battery pack pulse heating system to supply power to the eddy current heating device, uses the eddy current heating device to heat the heat transfer medium in the first heat exchange pipeline, dissipates the heat in the heat transfer medium to the interior space of the vehicle to increase the interior temperature of the vehicle, and helps to alleviate the problem of too low battery life of the electric vehicle caused by high energy consumption of the vehicle-mounted air conditioner in a low-temperature environment; dissipates the heat in the heat transfer medium to the door and the door handle, which can melt the ice at the door and the door handle, enabling the user to normally open the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the electric vehicle heating system in some embodiments;

[0018] Figure 2 It is a schematic layout diagram of the third heat exchange pipeline at the door;

[0019] Figure 3 It is a schematic layout diagram of the second heat exchange pipeline at the vehicle seat.

[0020] Wherein, 1 - eddy current heating device; 2 - first heat exchange pipeline; 3 - connecting pipeline; 4 - second heat exchange pipeline; 5 - third heat exchange pipeline; 6 - heat exchange pipeline section; 7 - first switching valve; 8 - second switching valve; 9 - third switching valve; 10 - storage pot; 11 - medium pump; 12 - seat; 13 - door; 14 - door handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for explaining the present invention, rather than for limiting the protection scope of the present invention.

[0022] It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0023] As Figure 1 shown, an electric vehicle heating system includes an eddy current heating device 1, a first heat exchange pipeline 2, and one or more heat exchange components connected to the first heat exchange pipeline 2 through a connecting pipeline 3. The eddy current heating device 1 is connected to the battery pack pulse heating system of the electric vehicle. The eddy current heating device 1 is arranged outside the first heat exchange pipeline 2, and the eddy current heating device 1 can heat the heat-conducting medium in the first heat exchange pipeline 2. One or more heat exchange components include at least one in-vehicle heat exchange component for dissipating at least a part of the heat of the heat-conducting medium to the interior space of the electric vehicle.

[0024] Adopting the above technical solution, the battery pack pulse heating system generates high-frequency alternating current while heating the battery pack. The alternating current passes through the eddy current coil of the eddy current heating device 1 to generate eddy current. The heat-conducting medium in the first heat exchange pipeline 2 is quickly heated under the action of the eddy current. The heat-conducting medium flows to the in-vehicle heat exchange component through the connecting pipeline 3, and at least a part of the heat of the heat-conducting medium in the in-vehicle heat exchange component is dissipated to the interior space of the electric vehicle, which can increase the interior temperature and help alleviate the problem of too low battery life of the electric vehicle caused by high energy consumption of the vehicle-mounted air conditioner in a low-temperature environment.

[0025] In specific implementation, the battery pack pulse heating system usually stops after the battery pack of the electric vehicle is heated to 0°C, and the eddy current heating device 1 stops synchronously. The heat-conducting medium in the in-vehicle heat exchange component slowly releases the remaining heat, which can increase or maintain the interior temperature. When the electric vehicle stops temporarily during the journey and the battery pack temperature is lower than -5°C, the battery pack pulse heating system usually starts to maintain the battery pack temperature, and the electric vehicle heating system heats the interior space synchronously, which can reduce the energy consumption of the vehicle-mounted air conditioner.

[0026] As a specific example, the eddy current heating device 1 is an eddy current coil arranged around the first heat exchange pipeline 2. Interfaces can be respectively led out at the positive and negative ends of the battery pack pulse heating system, and both ends of the eddy current coil are respectively connected to the two interfaces. When the battery pack pulse heating system performs pulse heating on the battery pack, the eddy current heating device 1 will heat the heat conduction medium in the first heat exchange pipeline 2.

[0027] In some embodiments, at least one in-vehicle heat exchange component is arranged on the floor of the electric vehicle. Arranging the in-vehicle heat exchange component on the floor can utilize the in-vehicle heat exchange component to heat the in-vehicle space.

[0028] In some embodiments, as Figure 2 shown, at least one in-vehicle heat exchange component is arranged in the seat 12 of the electric vehicle. Arranging the in-vehicle heat exchange component in the seat 12 can, on the one hand, utilize the in-vehicle heat exchange component to heat the in-vehicle space and raise the in-vehicle temperature; on the other hand, the in-vehicle heat exchange component can also heat the seat 12 to improve the riding experience of the user.

[0029] In some embodiments, at least one in-vehicle heat exchange component is the second heat exchange pipeline 4. In specific implementation, the second heat exchange pipeline 4 can be arranged on the floor of the electric vehicle, and the second heat exchange pipeline 4 can be arranged in the seat 12 of the electric vehicle, which has the characteristic of being easy to implement. Obviously, the second heat exchange pipeline 4 can also be respectively arranged on the floor of the electric vehicle and in the seat 12 of the electric vehicle.

[0030] In some embodiments, as Figure 3 shown, one or more heat exchange components include at least one door heat exchange component for dissipating at least a part of the heat of the heat conduction medium to the door 13 of the electric vehicle.

[0031] Adopting the above technical solution, in a low-temperature environment, when the electric vehicle is parked outdoors and the door 13 is frozen and cannot be normally opened, the pulse heating function of the electric vehicle is turned on to preheat the battery pack, and the eddy current heating device 1 will heat the heat conduction medium in the first heat exchange pipeline 2. Then, the heat conduction medium flowing to the door heat exchange component can be used to heat the door 13 to realize the thawing of the door 13, so that the user can normally open the door 13.

[0032] In some embodiments, at least one door heat exchange component includes a door handle heat exchange part for dissipating at least a part of the heat of the heat conduction medium to the door handle 14 of the door 13. The door handle heat exchange part can realize the thawing of the door handle 14, so that the user can normally use the door handle 14.

[0033] In some embodiments, the door heat exchanger is the third heat exchange pipeline 5 arranged along the edge of the door 13 as a whole. A first access point, a first switching valve 7, and a second access point are sequentially arranged on the connecting pipeline 3. The inlet end of the third heat exchange pipeline 5 is connected to the connecting pipeline 3 through the first access point, and the outlet end of the third heat exchange pipeline 5 is connected to the connecting pipeline 3 through the second access point. A second switching valve 8 is arranged at the inlet end of the third heat exchange pipeline 5, and a third switching valve 9 is arranged at the outlet end of the third heat exchange pipeline 5. In specific implementation, the first switching valve 7, the second switching valve 8, and the third switching valve 9 can all be ball valves. With the above technical solution, when it is necessary to use the door heat exchanger to thaw the door 13, close the first switching valve 7 and open the second switching valve 8 and the third switching valve 9, and the heat exchange medium can be guided to flow through the third heat exchange pipeline 5. When it is not necessary to thaw the door 13, open the first switching valve 7 and close the second switching valve 8 and the third switching valve 9, and the heating effect of the interior space of the vehicle can be improved.

[0034] In specific implementation, a part of the third heat exchange pipeline 5 is bent to form a heat exchange pipe section 6 arranged at the door handle, and the heat exchange pipe section 6 constitutes the door handle heat exchange part.

[0035] In some embodiments, the electric vehicle heating system further includes a storage pot 10 for storing a heat-conducting medium and a medium pump 11 for pumping the heat-conducting medium. The storage pot 10, the medium pump 11, the first heat exchange pipeline 2, and one or more heat exchangers are connected into a loop through the connecting pipeline 3.

[0036] In some embodiments, the first heat exchange pipeline 2 is a metal pipeline. In specific implementation, the second heat exchange pipeline 4 can also be a metal pipeline.

[0037] The present utility model also proposes an electric vehicle, including the heating system described in any one of the above.

[0038] The above embodiments are only preferred embodiments cited to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present utility model are all within the protection scope of the present utility model. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

Claims

1. An electric vehicle heating system, characterized in that, It includes an eddy current heating device (1), a first heat exchange pipeline (2), and one or more heat exchange components connected to the first heat exchange pipeline (2) through a connecting pipeline (3). The eddy current heating device (1) is electrically connected to the battery pack pulse heating system of the electric vehicle. The eddy current heating device (1) is used to heat the heat-conducting medium in the first heat exchange pipeline (2). One or more of the heat exchange components include at least one in-vehicle heat exchange component for dissipating at least a part of the heat of the heat-conducting medium to the interior space of the electric vehicle.

2. The electric vehicle heating system according to claim 1, characterized in that At least one of the in-vehicle heat exchange components is arranged on the floor of the electric vehicle.

3. The electric vehicle heating system according to claim 1, characterized in that, At least one of the in-vehicle heat exchange components is arranged in the seat (12) of the electric vehicle.

4. The electric vehicle heating system according to claim 1, wherein, At least one of the in-vehicle heat exchange components is a second heat exchange pipeline (4).

5. The electric vehicle heating system according to claim 1, wherein, One or more of the heat exchange components include at least one door heat exchange component for dissipating at least a part of the heat of the heat-conducting medium to the door (13) of the electric vehicle.

6. The electric vehicle heating system according to claim 5, wherein, At least one of the door heat exchange components includes a door handle heat exchange part for dissipating at least a part of the heat of the heat-conducting medium to the door handle (14) of the door (13).

7. The electric vehicle heating system according to claim 5, wherein, The door heat exchange component is a third heat exchange pipeline (5) arranged along the edge of the door (13) as a whole. A first access point, a first switching valve (7), and a second access point are sequentially arranged on the connecting pipeline (3). The inlet end of the third heat exchange pipeline (5) is connected to the connecting pipeline (3) through the first access point, and the outlet end of the third heat exchange pipeline (5) is connected to the connecting pipeline (3) through the second access point. A second switching valve (8) is arranged at the inlet end of the third heat exchange pipeline (5).

8. The electric vehicle heating system according to claim 1, wherein, It further includes a storage pot (10) for storing the heat-conducting medium and a medium pump (11) for pumping the heat-conducting medium. The storage pot (10), the medium pump (11), the first heat exchange pipeline (2), and one or more of the heat exchange components are connected into a loop through the connecting pipeline (3).

9. The electric vehicle heating system according to claim 1, wherein The first heat exchange pipeline (2) is a metal pipeline.

10. An electric vehicle, characterized in that, It includes the electric vehicle heating system according to any one of claims 1-9.

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