Vehicle

By introducing bypass modules and power modules in electric vehicles, the problem that charging equipment cannot supply power equipment is solved, and more flexible application scenarios and more efficient charging process are achieved, especially when the power battery temperature is too low, auxiliary heating is assisted. To improve charging efficiency.

CN222310394UActive Publication Date: 2025-01-07CONTEMPORARY AMPEREX TECHNOLOGY CO LTD +1
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Patent Information

Application Number
CN202323075100.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-11-14
Publication Date
2025-01-07
Estimated Expiration
2033-11-14

AI Technical Summary

Technical Problem

In electric vehicles, charging devices can usually only charge the power battery after being connected to the vehicle, and cannot flexibly utilize their power energy, which limits the application scenarios of vehicles and charging devices.

Method used

A vehicle is designed, including a power battery, electrical equipment and a bypass module, which controls the electrical connection between the charging device and the electrical equipment through the bypass module, allowing the power of the charging device to be supplied to the electrical equipment before charging the power battery. , expands application scenarios and assists in heating the power battery with the power module to improve charging efficiency.

Benefits of technology

The charging device is realized to supply power to the power equipment before charging the power battery, expanding the application scenario, and solving the problem of the power battery being unable to charge through heating, improving the safety and convenience of the charging process, and reducing the charging process cumbersome.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a vehicle, and belongs to the technical field of batteries. The vehicle includes: a power battery; an electric device; the charging interface is used for being connected with charging equipment so that the vehicle can be powered by the charging equipment, and the charging interface comprises a positive terminal and a negative terminal; and the bypass module is used for connecting or disconnecting the charging equipment and the electric equipment.
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Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a vehicle. Background Art

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in their development.

[0003] There are many electrical devices in electric vehicles. During the use of electric vehicles, the power batteries in the vehicles usually power the electrical devices. When the power batteries are low, they can be charged by charging equipment such as charging piles. Charging equipment is generally connected to the power grid or energy storage equipment and can provide sufficient power energy. However, after being connected to the vehicle, the charging equipment is generally only used to charge the power batteries in the vehicle and cannot flexibly utilize the power energy of the charging equipment. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the background technology. To this end, one purpose of the present application is to provide a vehicle to alleviate, mitigate or eliminate the problems in the related technology.

[0005] An embodiment of the first aspect of the present application provides a vehicle, comprising: a power battery; an electrical device; a charging interface for connecting to the charging device so that the vehicle can be powered by the charging device, the charging interface comprising a positive terminal and a negative terminal; and a bypass module for connecting or disconnecting the charging device from the electrical device.

[0006] In the technical solution of the embodiment of the present application, by providing a bypass module, the electrical connection between the charging device and the power device can be connected or disconnected, thereby disconnecting or connecting the electrical connection between the charging device and the power battery. This allows the charging device to supply power to the power device before charging the power battery, thereby expanding the application of the charging device.

[0007] In some embodiments, the bypass module includes at least one of a switch and a wire. Flexible configuration of the bypass module can be achieved.

[0008] In some embodiments, the bypass module includes: a first switch connected between the positive terminal and the positive line of the electric device; a second switch connected between the negative terminal and the negative line of the electric device. By setting the first switch and the second switch, the electrical connection / disconnection between the electric device and the charging device can be controlled, making the operation more flexible.

[0009] In some embodiments, the bypass module includes: a first switch connected between the positive terminal and the positive line of the electric device; and a second wire connected between the negative terminal and the negative line of the electric device. By providing the first switch and the second wire, the electrical connection / disconnection between the electric device and the charging device can be controlled, and the number of switch devices in the vehicle is reduced.

[0010] In some embodiments, the bypass module includes: a first wire connected between the positive terminal and the positive line of the electric device; and a second switch connected between the negative terminal and the negative line of the electric device. By providing the first wire and the second switch, the electrical connection / disconnection between the electric device and the charging device can be controlled, and the number of switch devices in the vehicle is reduced.

[0011] In some embodiments, the bypass module includes: a first switch connected between the positive terminal and the positive line of the electric device. By setting the first switch, the electrical connection / disconnection between the electric device and the charging device can be controlled, and the number of electrical devices in the vehicle is reduced.

[0012] In some embodiments, the bypass module includes: a second switch connected between the negative terminal and the negative line of the electric device. By setting the second switch, the electrical connection / disconnection between the electric device and the charging device can be controlled, and the number of electrical devices in the vehicle is reduced.

[0013] In some embodiments, the bypass module includes: a first wire connected between the positive terminal and the positive line of the electric device. By providing the first wire, the electrical connection / disconnection between the electric device and the charging device can be controlled, and the number of switch devices in the vehicle is reduced.

[0014] In some embodiments, the bypass module includes: a second wire connected between the negative terminal and the negative line of the electric device. By providing the second wire, the electrical connection / disconnection between the electric device and the charging device can be controlled, and the number of switch devices in the vehicle is reduced.

[0015] In some embodiments, the vehicle further includes: a third switch connected between the positive electrode of the power battery and the positive electrode line of the electric device; and a fourth switch connected between the negative electrode of the power battery and the negative electrode line of the electric device. By providing the third switch and the fourth switch, the number of electrical components in the bypass module can be reduced.

[0016] In some embodiments, the vehicle further includes: an electric energy module for applying current to the power battery to heat the power battery; a fifth switch connected between the positive electrode of the power battery and the positive electrode line of the electric energy module; and a sixth switch connected between the negative electrode of the power battery and the negative electrode line of the electric energy module. The electric energy module can be used to apply current to the power battery, thereby improving the problem that the power battery temperature is too low to be charged.

[0017] In some embodiments, the vehicle further includes: a seventh switch connected between the positive terminal and the positive electrode of the power battery; and an eighth switch connected between the negative terminal and the negative electrode of the power battery. By setting the seventh switch and the eighth switch, the electrical connection / disconnection between the power battery and the charging device can be controlled, thereby improving the safety of the vehicle during charging and making the operation more convenient. In addition, by disconnecting the electrical connection between the power battery and the charging device during the power battery heating process and restoring the electrical connection between the power battery and the charging device after the heating is completed, the power battery can be charged after the power battery heating is completed without disconnecting the physical connection between the charging device and the charging interface of the vehicle, thereby greatly reducing the complexity of the entire charging process.

[0018] In some embodiments, the vehicle further includes: an electric energy module for applying current to the power battery to heat the power battery; a fifth switch connected between the positive electrode of the power battery and the positive electrode line of the electric energy module, and connected in series with the third switch between the positive electrode of the power battery and the positive electrode line of the power device; a sixth switch connected between the negative electrode of the power battery and the negative electrode line of the electric energy module, and connected in series with the fourth switch between the negative electrode of the power battery and the negative electrode line of the power device. The electric energy module can be used to apply current to the power battery, thereby improving the problem that the power battery temperature is too low to be charged.

[0019] In some embodiments, the vehicle further includes: a seventh switch connected in series with the fifth switch between the positive terminal and the positive electrode of the power battery; and an eighth switch connected in series with the sixth switch between the negative terminal and the negative electrode of the power battery. By setting the seventh switch and the eighth switch, the electrical connection / disconnection between the power battery and the charging device can be controlled, thereby improving the safety of the vehicle during charging and making the operation more convenient. In addition, the electrical connection between the power battery and the charging device is disconnected during the power battery heating process, and the electrical connection between the power battery and the charging device is restored after the heating is completed. This allows the power battery to be charged after the power battery heating is completed without disconnecting the physical connection between the charging device and the charging interface of the vehicle, thereby greatly reducing the complexity of the entire charging process.

[0020] In some embodiments, the vehicle further comprises: a first pre-charging branch connected in parallel with any one of the fifth switch and the sixth switch. By providing the first pre-charging branch, the life of the power battery can be effectively extended.

[0021] In some embodiments, the first pre-charging branch includes a first pre-charging resistor and a ninth switch connected in series. By providing the first pre-charging branch, the life of the power battery can be effectively extended.

[0022] In some embodiments, the vehicle further comprises: a tenth switch connected to the electrical device; and a second pre-charging branch connected in parallel to the tenth switch. By providing the second pre-charging branch, the life of the electrical device can be effectively extended.

[0023] In some embodiments, the second pre-charging branch includes a second pre-charging resistor and an eleventh switch connected in series. By providing the second pre-charging branch, the life of the electrical device can be effectively extended.

[0024] In some embodiments, the electric device includes at least one of the following: an air conditioning compressor, a power converter, a heat pump, and a positive temperature coefficient thermistor. The charging device can supply power to the electric device in the vehicle that needs power. In some cases, the electric device can also assist in heating the power battery, thereby shortening the heating time.

[0025] In some embodiments, the vehicle further includes: a twelfth switch connected between the positive electrode of the power battery and the positive electrode line of the electric device; and a thirteenth switch connected between the negative electrode of the power battery and the negative electrode line of the electric device. By providing the twelfth and thirteenth switches, the number of electrical components in the bypass module can be reduced.

[0026] In some embodiments, the vehicle further includes: an electric energy module for applying current to the power battery to heat the power battery; a fourteenth switch connected between the positive electrode of the power battery and the positive electrode line of the electric energy module, and connected in series with the twelfth switch between the positive electrode of the power battery and the positive electrode line of the power-consuming device; a fifteenth switch connected between the negative terminal and the negative electrode of the power battery, and between the negative terminal and the negative electrode line of the electric energy module. The electric energy module can be used to apply current to the power battery, thereby improving the problem that the power battery temperature is too low to be charged.

[0027] In some embodiments, the vehicle further includes: a sixteenth switch or a third wire connected between the positive terminal and the positive line of the electric energy module, and connected in series with the first switch between the positive line of the electric device and the positive line of the electric energy module. The number of electrical components in the bypass module can be reduced.

[0028] In some embodiments, the vehicle further includes: a twelfth switch connected between the positive electrode of the power battery and the positive electrode line of the electric device; and a thirteenth switch connected between the negative electrode of the power battery and the negative electrode line of the electric device. By providing the twelfth and thirteenth switches, the number of electrical components in the bypass module can be reduced.

[0029] In some embodiments, the vehicle further includes: an electric energy module for applying current to the power battery to heat the power battery; a fourteenth switch connected between the positive electrode of the power battery and the positive electrode line of the electric energy module, and connected in series with the twelfth switch between the positive electrode of the power battery and the positive electrode line of the power-consuming device; a fifteenth switch connected between the negative terminal and the negative electrode of the power battery, and between the negative terminal and the negative electrode line of the electric energy module. The electric energy module can be used to apply current to the power battery, thereby improving the problem that the power battery temperature is too low to be charged.

[0030] In some embodiments, the vehicle further includes: a sixteenth switch connected between the positive terminal and the positive line of the electric energy module, and connected in series with the first wire between the positive line of the electric device and the positive line of the electric energy module. The number of electrical components in the bypass module can be reduced.

[0031] In some embodiments, the vehicle further comprises: a third pre-charging branch connected in parallel with any one of the fourteenth switch and the fifteenth switch. By providing the third pre-charging branch, the life of the power battery can be effectively extended.

[0032] In some embodiments, the third pre-charging branch includes a third pre-charging resistor and a seventeenth switch connected in series. By providing the third pre-charging branch, the life of the power battery can be effectively extended.

[0033] In some embodiments, the electric device includes a heating film. In some cases, the electric device can also assist in heating the power battery, thereby shortening the heating time.

[0034] In some embodiments, the power module includes at least one of an energy storage module and a motor electronic control module. The power module can be selected according to the use environment to improve the adaptability to different use scenarios of different vehicles.

[0035] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0037] Figure 1 An exemplary structural block diagram of a vehicle according to some embodiments of the present application;

[0038] Figure 2 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0039] Figure 3 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0040] Figure 4 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0041] Figure 5 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0042] Figure 6 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0043] Figure 7 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0044] Figure 8 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0045] Fig. 9 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0046] Fig.10 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0047] Fig.11 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0048] Fig.12 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0049] Fig.13 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0050] Fig.14 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0051] Fig.15 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0052] Fig.16 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0053] Fig.17 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0054] Fig.18 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0055] Fig.19 An exemplary schematic diagram of a vehicle according to some embodiments of the present application;

[0056] Fig. 20 An exemplary schematic diagram of a vehicle according to some embodiments of the present application; and

[0057] Fig.21 An exemplary schematic diagram of a vehicle according to some embodiments of the present application.

[0058] Description of reference numerals:

[0059] 100 vehicles;

[0060] 110 power battery, 120 power consumption equipment, 130 charging interface, 140 bypass module;

[0061] 150 charging equipment, 160 power modules;

[0062] K12 is the first switch, K13 is the second switch, b1 is the first wire, b2 is the second wire, b3 is the third wire,

[0063] K8 is the third switch, K9 is the fourth switch, K3 is the fifth switch, K4 is the sixth switch, K5 is the seventh switch,

[0064] K6 is the eighth switch, K7 is the ninth switch, K11 is the tenth switch, K10 is the eleventh switch, K8' is the twelfth switch, K9' is the thirteenth switch, K3' is the fourteenth switch, K4' is the fifteenth switch, K5' is the sixteenth switch,

[0065] K7' is the seventeenth switch, R1 is the first pre-charging resistor, R2 is the second pre-charging resistor, and R1' is the third pre-charging resistor. DETAILED DESCRIPTION

[0066] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0068] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0069] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0070] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0071] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0072] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0073] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0074] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0075] There are many electrical devices in electric vehicles. During the use of electric vehicles, the power batteries in the vehicles usually power the electrical devices. When the power battery is low on power, the power battery can be charged by a charging device such as a charging pile. After the charging device is connected to the vehicle, it is generally only used to charge the power battery in the electric vehicle, and will not supply power to the electrical devices in the electric vehicle. This results in limited application scenarios for the combination of vehicles and charging devices, and the power energy of the charging device cannot be flexibly utilized.

[0076] Therefore, there is a need for a vehicle that enables a charging device to supply power to electrical devices in the vehicle before charging the power battery of the vehicle, thereby expanding the application scenarios of the combination of the vehicle and the charging device.

[0077] According to the vehicle disclosed in the embodiment of the present application, the charging device can supply power to the electrical equipment in the vehicle before charging.

[0078] Figure 1 An exemplary structural block diagram of a vehicle according to some embodiments of the present application. Figure 2 An exemplary schematic diagram of a vehicle according to some embodiments of the present application. Figure 3-Figure 21 This is an exemplary schematic diagram of a vehicle of some embodiments of the present application. Figure 1-Figure 21 One or more of them are described.

[0079] refer to Figure 1An embodiment of the present application provides a vehicle 100, including: a power battery 110; an electrical device 120; a charging interface 130, which is used to connect to a charging device 150 so that the vehicle 100 can be powered by the charging device 150, and the charging interface 130 includes a positive terminal and a negative terminal; and a bypass module 140, which is used to connect or disconnect the charging device 150 with the electrical device 120.

[0080] In this document, the term "charging device" may include an off-board conductive charger (which may be referred to as an off-board charger or charger). The charging device 150 may be used to power the power battery 110 and / or the power-consuming device 120. In the related art, after the vehicle 100 is connected to the charging device 150 via the charging interface 130, the power battery 110 of the vehicle 100 may be electrically connected to the charging device 150, and the power battery 110 may serve as a load of the charging device 150.

[0081] In this document, the term "bypass module" refers to a device that can control the on / off of the electrical connection between the power-consuming device 120 and the charging device 150. In some embodiments, when the bypass module 140 is turned on, the power-consuming device 120 can be electrically connected to the charging device 150 via the charging interface 130, and the power-consuming device 120 can serve as a load of the charging device 150.

[0082] The bypass module 140 is provided in the vehicle, and the electric device 120 in the vehicle 100 can be connected or disconnected with the charging device 150. The charging device 150 can supply power to the electric device 120 according to the use requirements; when the charging device 150 does not need to supply power to the electric device 120, the electrical connection between the charging device 150 and the electric device 120 can be disconnected. This allows the charging device 150 to supply power to the electric device 1120 before charging the power battery, thereby expanding the application scenarios of the vehicle 100 and the charging device 150, and making flexible use of the electric energy of the charging device 150.

[0083] In certain application scenarios, this further provides additional benefits. For example, when the state of the power battery 110 does not allow charging (for example, the temperature is too low), some additional operations (for example, electric heating) may be required to make the power battery 110 meet the charging conditions. These additional operations may cause current or voltage fluctuations in the charging circuit, thereby causing damage to the charging device 150 or even the power grid. By electrically connecting the charging device 150 to the power device 120 (and potentially disconnecting the electrical connection between the charging device 150 and the power battery 110), these additional operations (for example, electric heating) can be completed without causing damage to the charging device 150 while maintaining the physical connection between the vehicle 100 and the charging device 150.

[0084] According to some embodiments of the present application, the bypass module 140 may include at least one of a switch and a wire.

[0085] In some embodiments, the bypass module 140 may include a switch and / or a conductor. Figure 2-Figure 17 The bypass module 140 may include two switches, one switch, one switch and one wire, or one wire, etc. Any arrangement that can use switches and / or wires to electrically connect and disconnect the power-consuming device 120 and the charging device 150 is possible, and no limitation is made here.

[0086] Thus, flexible configuration of the bypass module 140 can be achieved.

[0087] According to some embodiments of the present application, the bypass module 140 may include: a first switch connected between the positive terminal and the positive line of the electrical device 120; and a second switch connected between the negative terminal and the negative line of the electrical device 120.

[0088] In some embodiments, reference Figure 2 and Figure 3 The first switch may be a switch K12 connected between the positive terminal of the charging interface 130 and the positive line of the electric device 120 , and the second switch may be a switch K13 connected between the negative terminal of the charging interface 130 and the negative line of the electric device 120 .

[0089] By providing the first switch K12 and the second switch K13 , the electrical connection / disconnection between the power-consuming device 120 and the charging device 150 can be controlled, making the operation more flexible.

[0090] According to some embodiments of the present application, the bypass module 140 may include: a first switch connected between the positive terminal and the positive line of the electrical device 120; and a second wire connected between the negative terminal and the negative line of the electrical device 120.

[0091] In some embodiments, reference Figure 4 The first switch may be a switch K12 connected between the positive terminal of the charging interface 130 and the positive line of the electric device 120, and the second wire may be a wire b2 connected between the negative terminal of the charging interface 130 and the negative line of the electric device 120. At this time, the bypass module 140 does not include Figure 3 The second switch K13 in.

[0092] By providing the first switch K12 and the second wire b2 , the electrical connection / disconnection between the electric device 120 and the charging device 150 can be controlled, and the number of switch devices in the vehicle 100 can be reduced.

[0093] According to some embodiments of the present application, the bypass module 140 may include: a first wire connected between the positive terminal and the positive line of the electrical device 120; and a second switch connected between the negative terminal and the negative line of the electrical device 120.

[0094] In some embodiments, reference Figure 5 The first wire may be a wire b1 connected between the positive terminal of the charging interface 130 and the positive line of the electric device 120, and the second switch may be a switch K13 connected between the negative terminal of the charging interface 130 and the negative line of the electric device 120. At this time, the bypass module 140 does not include Figure 3 The first switch K12 in.

[0095] By providing the first conductive line b1 and the second switch K13 , the electrical connection / disconnection between the electric device 120 and the charging device 150 can be controlled, and the number of switch devices in the vehicle 100 can be reduced.

[0096] According to some embodiments of the present application, the bypass module 140 may include: a first switch connected between the positive terminal and the positive line of the electrical device 120 .

[0097] In some embodiments, reference Figure 6 The first switch may be a switch K12 connected between the positive terminal of the charging interface 130 and the positive line of the electric device 120. In this case, the bypass module 140 does not include Figure 3 The second switch K13 in.

[0098] By providing the first switch K12 , the electrical connection / disconnection between the electric device 120 and the charging device 150 can be controlled, and the number of electrical components in the vehicle 100 can be reduced.

[0099] According to some embodiments of the present application, the bypass module 140 may include: a second switch connected between the negative terminal and the negative line of the electrical device 120 .

[0100] In some embodiments, reference Figure 7 The second switch may be a switch K13 connected between the negative terminal of the charging interface 130 and the negative line of the electric device 120. In this case, the bypass module 140 does not include Figure 3 The first switch K12 in.

[0101] By providing the second switch K13 , the electrical connection / disconnection between the electric device 120 and the charging device 150 can be controlled, and the number of electrical components in the vehicle 100 can be reduced.

[0102] According to some embodiments of the present application, the bypass module 140 may include: a first conductive wire connected between the positive terminal and the positive line of the electrical device 120 .

[0103] In some embodiments, reference Figure 8 The first wire may be a wire b1 connected between the positive terminal of the charging interface 130 and the positive line of the power-consuming device 120. In this case, the bypass module 140 does not include Figure 3 The first switch K12 and the second switch K13 in.

[0104] By providing the first wire b1 , the electrical connection / disconnection between the electric device 120 and the charging device 130 can be controlled, and the number of switching devices in the vehicle 100 can be reduced.

[0105] According to some embodiments of the present application, the bypass module 140 may include: a second conductive wire connected between the negative terminal and the negative line of the electrical device 120 .

[0106] In some embodiments, reference Fig. 9 The second wire may be a wire b2 connected between the negative terminal of the charging interface 130 and the power-consuming device 120. In this case, the bypass module 140 does not include Figure 3 The first switch K12 and the second switch K13 in.

[0107] By providing the second wire b2 , the electrical connection / disconnection between the electric device 120 and the charging device 150 can be controlled, and the number of switching devices in the vehicle 100 can be reduced.

[0108] According to some embodiments of the present application, the vehicle 100 may further include: a third switch connected between the positive electrode of the power battery 110 and the positive electrode line of the electrical device 120; and a fourth switch connected between the negative electrode of the power battery 110 and the negative electrode line of the electrical device 120.

[0109] In some embodiments, reference Figure 2-Figure 17 The third switch may be a switch K8 connected between the positive electrode of the power battery 110 and the positive electrode line of the electric device 120 , and the fourth switch may be a switch K9 connected between the negative electrode of the power battery 110 and the negative electrode line of the electric device 120 .

[0110] By providing the third switch K8 and the fourth switch K9 , the connection / disconnection between the power battery 110 and the electric device 120 can be controlled.

[0111] According to some embodiments of the present application, the vehicle 100 also includes: an electric energy module 160, used to apply current to the power battery 110 to heat the power battery 110; a fifth switch, connected between the positive electrode of the power battery 110 and the positive electrode line of the electric energy module 160; and a sixth switch, connected between the negative electrode of the power battery 110 and the negative electrode line of the electric energy module 160.

[0112] In this document, the term "power module" refers to a module capable of applying a current across a battery, wherein applying a current to the battery may be applying a positive current and / or a negative current. In one example, the current may be in the form of a pulse current.

[0113] When the temperature is low, the power battery 110 cannot be charged because its temperature is too low. In this case, the power battery 110 can be heated using the power module 160. After the electrical connection between the power battery 110 and the charging device 150 is disconnected, the power module 160 can be used to apply current to the power battery 110. Since the power battery 110 has internal resistance, when current flows through the power battery 110, heat is generated, thereby heating the power battery 110.

[0114] The fifth switch may be a switch K3 connected between the positive electrode of the power battery 110 and the positive electrode line of the power module 160 , and the sixth switch may be a switch K4 connected between the negative electrode of the power battery 110 and the negative electrode line of the power module 160 .

[0115] The electric energy module 160 may be used to apply current to the power battery 110 , thereby alleviating the problem that the power battery is too cold to be charged.

[0116] According to some embodiments of the present application, the vehicle 100 further includes: a seventh switch connected between the positive terminal and the positive electrode of the power battery 110 ; and an eighth switch connected between the negative terminal and the negative electrode of the power battery 110 .

[0117] In some embodiments, reference Figure 2-3 and 5-9, the seventh switch may be a switch K5 connected between the positive terminal of the charging interface 130 and the positive electrode of the power battery 110, and the eighth switch may be a switch K6 connected between the negative terminal of the charging interface 130 and the negative electrode of the power battery 110.

[0118] In some embodiments, when the temperature is low, the power battery 110 cannot be charged because its temperature is too low. In this case, the power module 160 can be used to heat the power battery 110 .

[0119] In some embodiments, Figure 2 and Figure 3As shown, when the vehicle 100 is connected to the charging device 150 via the charging interface 130, the charging device 150 and the vehicle 100 each confirm the charging self-heating stage. After the confirmation is successful, the charging device 150 initiates the charging self-heating process.

[0120] The vehicle 100 disconnects the seventh switch K5 and / or the eighth switch K6 to disconnect the power battery 110 from the charging device 150, and disconnects the third switch K8 and / or the fourth switch K9 to disconnect the power battery 110 from the power consumption device 120. Afterwards, the first switch K12 and the second switch K13 in the bypass module 140 are closed to electrically connect the power consumption device 120 to the charging device 150. At this time, the load of the charging device 150 is the power consumption device 120.

[0121] After closing the first switch K12 and the second switch K13, the fifth switch K3 and the sixth switch K4 are closed to connect the power module 160 to the power battery 100 and heat the power battery 110. At this time, the power battery 110 is not connected to the charging device 150, but to the power module 160. The power module 160 applies current to both sides of the power battery 110, so that the battery internal resistance quickly heats the battery.

[0122] After the above-mentioned charging self-heating process is completed (i.e., the charging device 150 is in a heating-ready state), the fifth switch K3 and the sixth switch K4, as well as the first switch K12 and the second switch K13 are disconnected, and the seventh switch K5 and the eighth switch K6 are closed, so that the power battery 110 is electrically connected to the charging device 150, and the charging device 150 transmits energy to the power battery 110.

[0123] The connection method between the bypass module 140 and the electrical device 120 includes but is not limited to the following exemplary schemes. It should be understood by those skilled in the art that the scope of the present disclosure is not limited by these embodiments or examples. Further, the various elements in the embodiments or examples can be combined in various ways. It is important that with the evolution of technology, many of the elements described herein can be replaced by equivalent elements that appear after the present disclosure. In addition, for the purpose of brevity, the same or similar parts / processes will not be repeated.

[0124] In some embodiments, Figure 4 As shown, the bypass module 140 may further include a first conductive line b1 and a second switch K13. In this case, the power consumption device 120 may be electrically connected to the charging device 150 by closing the second switch K13.

[0125] In some embodiments, Figure 5As shown, the bypass module 140 may further include a first switch K12. In this case, the electric device 120 may be electrically connected to the charging device 150 by closing the first switch K12 and the eighth switch K6 and the fourth switch K9.

[0126] In some embodiments, Figure 6 As shown, the bypass module 140 may further include a second switch K13. In this case, the electric device 120 may be electrically connected to the charging device 150 by closing the second switch K13, the seventh switch K5, and the third switch K8.

[0127] In some embodiments, Figure 7 As shown, the bypass module 140 may further include a first conductive line b1. In this case, the power consumption device 120 may be electrically connected to the charging device 150 by closing the eighth switch K6 and the fourth switch K9.

[0128] In some embodiments, Figure 8 As shown, the bypass module 140 may further include a second wire b2. In this case, the power consumption device 120 may be electrically connected to the charging device 150 by closing the seventh switch K5 and the third switch K8.

[0129] By providing the seventh switch K5 and the eighth switch K6, the electrical connection / disconnection between the power battery 110 and the charging device 150 can be controlled, thereby improving the safety of the vehicle 100 when charging and making the operation more convenient.

[0130] In addition, the electrical connection between the power battery 110 and the charging device 150 is disconnected during the heating process of the power battery 110, and the electrical connection between the power battery 110 and the charging device 150 is restored after the heating is completed. This allows the power battery 110 to be charged after the heating is completed without disconnecting the physical connection between the charging device 150 and the charging interface 130 of the vehicle 100, thereby greatly reducing the complexity of the entire charging process.

[0131] According to some embodiments of the present application, the vehicle 100 also includes: an electric energy module 160, used to apply current to the power battery 110 to heat the power battery 110; a fifth switch, connected between the positive electrode of the power battery 110 and the positive electrode line of the electric energy module 160, and connected in series with the third switch between the positive electrode of the power battery 110 and the positive electrode line of the electrical equipment 120; a sixth switch, connected between the negative electrode of the power battery 110 and the negative electrode line of the electric energy module 160, and connected in series with the fourth switch between the negative electrode of the power battery 110 and the negative electrode line of the electrical equipment 120.

[0132] In some embodiments, reference Fig.10 The fifth switch is a switch K3 connected between the positive electrode of the power battery 110 and the positive electrode line of the electric energy module 160, and is connected in series with the third switch K8 between the positive electrode of the power battery 110 and the positive electrode line of the electric equipment 120; the sixth switch is a switch K4 connected between the negative electrode of the power battery 110 and the negative electrode line of the electric energy module 160, and is connected in series with the fourth switch K9 between the negative electrode of the power battery 110 and the negative electrode line of the electric equipment 120.

[0133] The electric energy module 160 may be used to apply current to the power battery, thereby alleviating the problem that the power battery is too cold to be charged.

[0134] According to some embodiments of the present application, the vehicle 100 further includes: a seventh switch connected in series with the fifth switch K3 between the positive terminal and the positive electrode of the power battery 110; and an eighth switch connected in series with the sixth switch K4 between the negative terminal and the negative electrode of the power battery 110.

[0135] In some embodiments, reference Fig.10 The seventh switch may be a switch K5 connected in series with the fifth switch K3 between the positive terminal and the positive electrode of the power battery 100 ; the eighth switch may be a switch K6 connected in series with the sixth switch K4 between the negative terminal and the negative electrode of the power battery 110 .

[0136] For the fifth switch K3 and the sixth switch K4, Fig.10 and Figure 4 Shown with Figure 3 Exemplary embodiments with different connection modes.

[0137] exist Fig.10 In the illustrated embodiment, the fifth switch K3 is connected between the positive electrode of the power battery 110 and the positive electrode line of the electric energy module 160, and is also connected in series with the third switch K8 between the positive electrode of the power battery 110 and the positive electrode line of the electric device 120; the sixth switch K4 is connected between the negative electrode of the power battery 110 and the negative electrode line of the electric energy module 160, and is also connected in series with the fourth switch K9 between the negative electrode of the power battery 110 and the negative electrode line of the electric device 120.

[0138] exist Figure 4 In the illustrated embodiment, the fifth switch K3 is connected between the positive electrode of the power battery 110 and the positive electrode line of the electric energy module 160, and is connected in series with the third switch K8 between the positive electrode of the power battery 110 and the positive electrode line of the electric device 120; the sixth switch K4 is connected between the negative electrode of the power battery 110 and the negative electrode line of the electric energy module 160.

[0139] It should be understood that the fifth switch K3 is connected between the positive electrode of the power battery 110 and the positive electrode line of the power module 160; in addition to being connected between the negative electrode of the power battery 110 and the negative electrode line of the power module 160, it is also possible that the sixth switch K4 is connected in series with the fourth switch K9 between the negative electrode of the power battery 110 and the negative electrode line of the electrical equipment 120.

[0140] By providing the seventh switch K5 and the eighth switch K6, the electrical connection / disconnection between the power battery 110 and the charging device 150 can be controlled, thereby improving the safety of the vehicle 110 when charging and making the operation more convenient.

[0141] In addition, the electrical connection between the power battery 110 and the charging device 150 is disconnected during the heating process of the power battery 110, and the electrical connection between the power battery 110 and the charging device 150 is restored after the heating is completed. This allows the power battery 110 to be charged after the heating is completed without disconnecting the physical connection between the charging device 150 and the charging interface 130 of the vehicle 100, thereby greatly reducing the complexity of the entire charging process.

[0142] According to some embodiments of the present application, the vehicle 100 further includes: a first pre-charging branch connected in parallel with any one of the fifth switch K3 and the sixth switch K4 .

[0143] When the electric energy module 160 stops applying current to the power battery 110 to stop heating the power battery 100 , the pre-charging stage will begin.

[0144] In some embodiments, reference Figure 10-Figure 16 , the first pre-charge branch can be connected in parallel with the fifth switch K3. In some embodiments, reference Figure 3-Figure 10 , the first pre-charging branch can be connected in parallel with the sixth switch K4.

[0145] It should be understood that although the drawings of the present disclosure only show the situation where the first pre-charging branch is connected in parallel with the fifth switch K3 or the sixth switch K4, in some embodiments, a parallel pre-charging branch may be set for each of the fifth switch K3 and the sixth switch K4, and the present disclosure is not limited in this respect.

[0146] By providing the first pre-charging branch, the impact of current on the power battery 110 can be reduced, thereby effectively extending the life of the power battery 110.

[0147] According to some embodiments of the present application, the first pre-charging branch includes a first pre-charging resistor and a ninth switch connected in series.

[0148] In some embodiments, reference Figure 3-Figure 17The first pre-charging resistor may be a resistor R1, and the ninth switch may be a switch K7 connected in series with the resistor R1.

[0149] By providing the first pre-charging branch, the impact of current on the power battery 110 can be reduced, thereby effectively extending the life of the power battery 110.

[0150] According to some embodiments of the present application, the vehicle 100 further includes: a tenth switch connected to the electrical device 120; and a second pre-charging branch connected in parallel to the tenth switch.

[0151] In some embodiments, reference Figure 3-Figure 17 The tenth switch may be a switch K11 connected to the positive line or the negative line of the electric device 120. Two ends of the tenth switch K11 are also connected in parallel with a second pre-charging branch.

[0152] By providing the second pre-charging branch, the impact of the current on the electrical device 120 can be reduced, thereby effectively extending the life of the electrical device 120.

[0153] According to some embodiments of the present application, the second pre-charging branch includes a second pre-charging resistor and an eleventh switch connected in series.

[0154] In some embodiments, reference Figure 3-Figure 17 The second pre-charging resistor may be a resistor R2, and the eleventh switch may be a switch K10 connected in series with the resistor R2.

[0155] By providing the second pre-charging branch, the impact of the current on the electrical device 120 can be reduced, thereby effectively extending the life of the electrical device 120.

[0156] According to some embodiments of the present application, the electric device 120 includes at least one of the following items: an air-conditioning compressor, a power converter, a heat pump, and a positive temperature coefficient thermistor.

[0157] The electrical equipment 120 includes various types of equipment, such as air conditioning compressors, power converters, heat pumps, and positive temperature coefficient thermistors, etc., which are not limited here. Figure 3-Figure 17 The electrical consumers 120 shown are a compressor and a positive temperature coefficient thermistor (PTC), but this is not intended to be limiting and other electrical consumers are possible.

[0158] The charging device 150 can supply power to the power consumption device 120 in the vehicle 100. In some cases (for example, the power consumption device 120 is a heat pump or a positive temperature coefficient thermistor), the power consumption device 120 can also assist in heating the power battery 110, thereby shortening the heating time.

[0159] According to some embodiments of the present application, the vehicle 100 further includes: a twelfth switch connected between the positive electrode of the power battery 110 and the positive electrode line of the electrical device 120; and a thirteenth switch connected between the negative electrode of the power battery 110 and the negative electrode line of the electrical device 120.

[0160] In some embodiments, reference Figure 18-19 and 21, when a first switch K12 is connected between the positive terminal of the charging interface 130 and the positive line of the electric device 120, the vehicle 100 may further include a twelfth switch K8' connected between the positive terminal of the power battery 110 and the positive line of the electric device 120, and a thirteenth switch K9' connected between the negative terminal of the power battery 110 and the negative line of the electric device 120.

[0161] By providing the twelfth switch K8 ′ and the thirteenth switch K9 ′, the connection / disconnection between the power battery 110 and the electric device 120 can be controlled.

[0162] According to some embodiments of the present application, the vehicle also includes: an electric energy module 160, used to apply current to the power battery 110 to heat the power battery 110; a fourteenth switch, connected between the positive electrode of the power battery 110 and the positive electrode line of the electric energy module 160, and connected in series with the twelfth switch between the positive electrode of the power battery 110 and the positive electrode line of the electrical equipment 120; a fifteenth switch, connected between the negative terminal and the negative electrode of the power battery 110, and connected between the negative terminal and the negative electrode line of the electric energy module 160.

[0163] In some embodiments, continue to refer to Figure 18-19 and 21, when a first switch K12 is connected between the positive terminal of the charging interface 130 and the positive line of the electric device 120, the vehicle 100 may further include a fourteenth switch K3' connected between the positive terminal of the power battery 110 and the positive line of the electric energy module 160, and connected in series with the twelfth switch K8' between the positive terminal of the power battery 110 and the positive line of the electric device 120; and a fifteenth switch K4' connected between the negative terminal of the charging interface 130 and the negative terminal of the power battery 110, and connected between the negative terminal of the charging interface 130 and the negative line of the electric energy module 160.

[0164] The power module 160 may be used to apply current to the power battery 110 , thereby alleviating the problem that the power battery 110 is too cold to be charged.

[0165] According to some embodiments of the present application, the vehicle 100 also includes: a sixteenth switch or a third wire, connected between the positive terminal and the positive line of the power module 160, and connected in series with the first switch between the positive line of the power device 120 and the positive line of the power module 160.

[0166] In some embodiments, reference Figure 18-19 The vehicle 100 further includes a sixteenth switch K5 ′ connected between the positive terminal of the charging interface 130 and the positive line of the power module 160 and connected in series with the first switch K12 between the positive line of the power device 120 and the positive line of the power module 160 .

[0167] In some embodiments, reference Fig.21 The vehicle 100 may further include a third wire b3 connected between the positive terminal of the charging interface 130 and the positive line of the power module 160 and connected in series with the first switch K12 between the positive line of the power device 120 and the positive line of the power module 160 .

[0168] exist Fig.21 In the illustrated embodiment, the first switch K12 can be closed to electrically connect the electric device 120 to the charging device 150. Next, the fourteenth switch K3' is closed to connect the electric energy module 160 to the power battery 100 and heat the power battery 110. After the charging self-heating process is completed, the thirteenth switch K9' is closed, the first switch K12 is opened, the power battery 110 is electrically connected to the charging device 150, and the charging device 150 transmits energy to the power battery 110.

[0169] and Fig.21 Similar to the embodiment shown, Figure 18-19 In the embodiment shown, the second switch K13 and / or the sixteenth switch K5' can be further closed to achieve Fig.21 The connection method in the embodiment shown.

[0170] Thus, the number of electrical components in the bypass module 160 can be reduced.

[0171] According to some embodiments of the present application, the vehicle 100 further includes: a twelfth switch connected between the positive electrode of the power battery 110 and the positive electrode line of the electrical device 120; and a thirteenth switch connected between the negative electrode of the power battery 110 and the negative electrode line of the electrical device 120.

[0172] In some embodiments, reference Fig. 20When a first wire b1 is connected between the positive terminal of the charging interface 130 and the positive line of the electric device 120, and a second switch K13 is connected between the negative terminal of the charging interface 130 and the negative line of the electric device 120, the vehicle 100 may further include: a twelfth switch K8' connected between the positive electrode of the power battery 110 and the positive line of the electric device 120; and a thirteenth switch K9' connected between the negative electrode of the power battery 110 and the negative line of the electric device 120.

[0173] By providing the twelfth switch K8 ′ and the thirteenth switch K9 ′, the connection / disconnection between the power battery 110 and the electric device 120 can be controlled.

[0174] According to some embodiments of the present application, the vehicle 100 also includes: an electric energy module 160, used to apply current to the power battery 110 to heat the power battery 110; a fourteenth switch, connected between the positive electrode of the power battery 110 and the positive electrode line of the electric energy module 160, and connected in series with the twelfth switch between the positive electrode of the power battery 110 and the positive electrode line of the electrical equipment 120; a fifteenth switch, connected between the negative terminal and the negative electrode of the power battery 110, and connected between the negative terminal and the negative electrode line of the electric energy module 160.

[0175] In some embodiments, continue to refer to Fig. 20 When a first wire b1 is connected between the positive terminal of the charging interface 130 and the positive line of the electric device 120, and a second switch K13 is connected between the negative terminal of the charging interface 130 and the negative line of the electric device 120, the vehicle 100 may further include a fourteenth switch K3' connected between the positive electrode of the power battery 110 and the positive line of the electric energy module 160, and connected in series with the twelfth switch K8' between the positive electrode of the power battery 110 and the positive line of the electric device 120; and a fifteenth switch K4' connected between the negative terminal of the charging interface 130 and the negative electrode of the power battery 110, and connected between the negative terminal of the charging interface 130 and the negative line of the electric energy module 160.

[0176] The power module 160 may be used to apply current to the power battery 110 , thereby alleviating the problem that the power battery 110 is too cold to be charged.

[0177] According to some embodiments of the present application, the vehicle 100 also includes: a sixteenth switch, connected between the positive terminal and the positive line of the power module 160, and connected in series with the first wire between the positive line of the power device 120 and the positive line of the power module 160.

[0178] In some embodiments, reference Fig. 20The vehicle 100 may further include a sixteenth switch K5 ′ connected between the positive terminal of the charging interface 130 and the positive line of the power module 160 , and connected in series with the first wire b1 between the positive line of the power device 120 and the positive line of the power module 160 .

[0179] exist Fig. 20 In the illustrated embodiment, the second switch K13 can be closed to electrically connect the electric device 120 to the charging device 150. Next, the fourteenth switch K3' is closed to connect the electric energy module 160 to the power battery 100 and heat the power battery 110. After the charging self-heating process is completed, the second switch K13 is opened, the twelfth switch K8' and the fifteenth switch K4' are closed, the power battery 110 is electrically connected to the charging device 150, and the charging device 150 transmits energy to the power battery 110.

[0180] Thus, the number of electrical components in the bypass module 140 can be reduced.

[0181] According to some embodiments of the present application, the vehicle 100 further includes: a third pre-charging branch connected in parallel with any one of the fourteenth switch K3 ′ and the fifteenth switch K4 ′.

[0182] When the electric energy module 160 stops applying current to the power battery 110 to stop heating the power battery 100 , the pre-charging stage will begin.

[0183] In some embodiments, reference Figure 18-Figure 21 , the third pre-charging branch can be connected in parallel with the fourteenth switch K3 '.

[0184] It should be understood that although the drawings of the present disclosure only show the situation where the third pre-charging branch is connected in parallel with the fourteenth switch K3', in some embodiments, a parallel pre-charging branch can be set for each of the fourteenth switch K3' and the fifteenth switch K4', and the present disclosure is not limited in this respect.

[0185] By providing the third pre-charging branch, the impact of current on the power battery 110 can be reduced, thereby effectively extending the life of the power battery 110.

[0186] According to some embodiments of the present application, the third pre-charging branch includes a third pre-charging resistor and a seventeenth switch connected in series.

[0187] In some embodiments, reference Figure 18-Figure 21 The third pre-charging resistor may be a resistor R1', and the seventeenth switch may be a switch K7' connected in series with the resistor R1'.

[0188] By providing the third pre-charging branch, the life of the power battery 110 can be effectively extended.

[0189] According to some embodiments of the present application, the electric device 120 includes a heating film.

[0190] In some embodiments, the heating film may be attached (eg, completely wrapped or partially wrapped) to a battery cell, a battery module, or a battery pack.

[0191] In some cases (for example, the electric device 120 is a heating film), the electric device 120 can also assist in heating the power battery, thereby shortening the heating time.

[0192] According to some embodiments of the present application, the power module 160 includes at least one of an energy storage module and a motor electronic control module.

[0193] The electric energy module 160 may be a separate energy storage module or a motor control module of the vehicle 100. Furthermore, the motor control module may include a single electric drive to generate current or a dual electric drive to generate current. In addition, other modules that generate current may also be used to heat the power battery 110, which is not limited here.

[0194] The electric energy module 160 can be selected as needed to improve the adaptability to different usage scenarios of different vehicles.

[0195] refer to Figure 2 and Figure 3 In some embodiments, when the temperature is low, the power battery 110 cannot be charged because its temperature is too low. In this case, the power module 160 can be used to heat the power battery 110 .

[0196] In some embodiments, when the vehicle 100 is connected to the charging device 150 via the charging interface 130 , the charging device 150 and the vehicle 100 each confirm the charging self-heating stage. After the confirmation is successful, the charging device 150 initiates the charging self-heating process.

[0197] The vehicle 100 disconnects the seventh switch K5 and / or the eighth switch K6 to disconnect the power battery 110 from the charging device 150, and disconnects the third switch K8 and / or the fourth switch K9 to disconnect the power battery 110 from the power consumption device 120. Afterwards, the first switch K12 and the second switch K13 in the bypass module 140 are closed to electrically connect the power consumption device 120 to the charging device 150. At this time, the load of the charging device 150 is the power consumption device 120.

[0198] After closing the first switch K12 and the second switch K13, the fifth switch K3 and the sixth switch K4 are closed to connect the power module 160 to the power battery 100 and heat the power battery 110. At this time, the power battery 110 is not connected to the charging device 150, but only to the power module 160, and current is applied to both sides of the power battery 110 through the power module 160, so that the battery internal resistance quickly heats the battery.

[0199] After the above-mentioned charging self-heating process is completed (i.e., the charging device 150 is in a heating-ready state), the fifth switch K3 and the sixth switch K4, as well as the first switch K12 and the second switch K13 are disconnected, and the seventh switch K5 and the eighth switch K6 are closed, so that the power battery 110 is electrically connected to the charging device 150, and the charging device 150 transmits energy to the power battery 110.

[0200] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A vehicle (100), characterized in that: include: Power battery (110); Electrical equipment (120); A charging interface (130) for connecting to a charging device (150) so that the vehicle (100) can be powered by the charging device (150), the charging interface (130) comprising a positive terminal and a negative terminal; as well as A bypass module (140) is used to connect or disconnect the charging device (150) from the power-consuming device (120).

2. The vehicle (100) according to claim 1, characterized in that The bypass module (140) includes at least one of a switch and a conductor.

3. The vehicle (100) according to claim 1, characterized in that The bypass module (140) comprises: A first switch (K12) connected between the positive terminal and the positive line of the electrical device (120); The second switch (K13) is connected between the negative terminal and the negative line of the electrical device (120).

4. The vehicle (100) according to claim 1, characterized in that The bypass module (140) comprises: A first switch (K12) connected between the positive terminal and the positive line of the electrical device (120); The second wire (b2) is connected between the negative terminal and the negative electrode line of the electrical device (120).

5. The vehicle (100) according to claim 1 or 2, characterized in that: The bypass module (140) comprises: A first wire (b1) connected between the positive terminal and the positive line of the electrical device (120); The second switch (K13) is connected between the negative terminal and the negative line of the electrical device (120).

6. The vehicle (100) according to claim 1 or 2, characterized in that: The bypass module (140) comprises: The first switch (K12) is connected between the positive terminal and the positive line of the electrical device (120).

7. The vehicle (100) according to claim 1 or 2, characterized in that: The bypass module (140) comprises: The second switch (K13) is connected between the negative terminal and the negative line of the electrical device (120).

8. The vehicle (100) according to claim 1 or 2, characterized in that: The bypass module (140) comprises: The first wire (b1) is connected between the positive terminal and the positive line of the electrical device (120).

9. The vehicle (100) according to claim 1 or 2, characterized in that: The bypass module (140) comprises: The second wire (b2) is connected between the negative terminal and the negative electrode line of the electrical device (120).

10. The vehicle (100) according to claim 1 or 2, characterized in that: The vehicle (100) further comprises: a third switch (K8), connected between the positive electrode of the power battery (110) and the positive electrode circuit of the power-consuming device (120); The fourth switch (K9) is connected between the negative electrode of the power battery (110) and the negative electrode line of the power-consuming device (120).

11. The vehicle (100) according to claim 1, characterized in that The vehicle (100) further comprises: An electric energy module (160) for applying current to the power battery (110) to heat the power battery (110); a fifth switch (K3), connected between the positive electrode of the power battery (110) and the positive electrode circuit of the electric energy module (160); A sixth switch (K4) is connected between the negative electrode of the power battery (110) and the negative electrode line of the electric energy module (160).

12. The vehicle (100) according to any one of claims 1, 2, 3-4 and 11, characterized in that The vehicle (100) further comprises: a seventh switch (K5), connected between the positive terminal and the positive electrode of the power battery (110); An eighth switch (K6) is connected between the negative electrode terminal and the negative electrode of the power battery (110).

13. The vehicle (100) according to claim 10, characterized in that The vehicle (100) further comprises: An electric energy module (160) for applying current to the power battery (110) to heat the power battery (110); a fifth switch (K3), connected between the positive electrode of the power battery (110) and the positive electrode line of the power module (160), and connected in series with the third switch (K8) between the positive electrode of the power battery (110) and the positive electrode line of the power device (120); A sixth switch (K4) is connected between the negative electrode of the power battery (110) and the negative electrode line of the power module (160), and is connected in series with the fourth switch (K9) between the negative electrode of the power battery (110) and the negative electrode line of the power device (120).

14. The vehicle (100) according to claim 13, characterized in that The vehicle (100) further comprises: a seventh switch (K5), connected in series with the fifth switch (K3) between the positive terminal and the positive electrode of the power battery (110); An eighth switch (K6) is connected in series with the sixth switch (K4) between the negative terminal and the negative electrode of the power battery (110).

15. The vehicle (100) according to any one of claims 11 and 13-14, characterized in that The vehicle (100) further comprises: The first pre-charging branch is connected in parallel with any one of the fifth switch (K3) and the sixth switch (K4).

16. The vehicle (100) according to claim 15, characterized in that The first pre-charging branch includes a first pre-charging resistor and a ninth switch (K7) connected in series.

17. The vehicle (100) according to any one of claims 1, 2, 3-4, 11, 13-14 and 16, characterized in that The vehicle (100) further comprises: a tenth switch (K11), connected to the electrical device (120); The second pre-charging branch is connected in parallel with the tenth switch (K11).

18. The vehicle (100) according to claim 17, characterized in that The second pre-charging branch includes a second pre-charging resistor and an eleventh switch (K10) connected in series.

19. The vehicle (100) according to any one of claims 1, 2, 3-4, 11, 13-14, 16 and 18, characterized in that The electric device (120) includes at least one of the following items: an air-conditioning compressor, a power converter, a heat pump, and a positive temperature coefficient thermistor.

20. The vehicle (100) according to claim 3 or 4, characterized in that The vehicle (100) further comprises: a twelfth switch (K8'), connected between the positive electrode of the power battery (110) and the positive electrode circuit of the power-consuming device (120); The thirteenth switch (K9') is connected between the negative electrode of the power battery (110) and the negative electrode line of the power-consuming device (120).

21. The vehicle (100) according to claim 20, characterized in that The vehicle (100) further comprises: An electric energy module (160) for applying current to the power battery (110) to heat the power battery (110); A fourteenth switch (K3') connected between the positive electrode of the power battery (110) and the positive electrode line of the power module (160), and connected in series with the twelfth switch (K8') between the positive electrode of the power battery (110) and the positive electrode line of the power device (120); A fifteenth switch (K4') is connected between the negative terminal and the negative electrode of the power battery (110), and is connected between the negative terminal and the negative electrode line of the electric energy module (160).

22. The vehicle (100) according to claim 21, characterized in that The vehicle (100) further comprises: The sixteenth switch (K5') or the third wire (b3) is connected between the positive terminal and the positive line of the power module (160), and is connected in series with the first switch (K12) between the positive line of the power device (120) and the positive line of the power module (160).

23. The vehicle (100) according to claim 5, characterized in that The vehicle (100) further comprises: a twelfth switch (K8'), connected between the positive electrode of the power battery (110) and the positive electrode circuit of the power-consuming device (120); The thirteenth switch (K9') is connected between the negative electrode of the power battery (110) and the negative electrode line of the power-consuming device (120).

24. The vehicle (100) according to claim 23, characterized in that The vehicle (100) further comprises: An electric energy module (160) for applying current to the power battery (110) to heat the power battery (110); A fourteenth switch (K3') connected between the positive electrode of the power battery (110) and the positive electrode line of the power module (160), and connected in series with the twelfth switch (K8') between the positive electrode of the power battery (110) and the positive electrode line of the power device (120); A fifteenth switch (K4') is connected between the negative terminal and the negative electrode of the power battery (110), and is connected between the negative terminal and the negative electrode line of the electric energy module (160).

25. The vehicle (100) according to claim 24, characterized in that The vehicle (100) further comprises: The sixteenth switch (K5') is connected between the positive terminal and the positive line of the power module (160), and is connected in series with the first wire (b1) between the positive line of the power device (120) and the positive line of the power module (160).

26. The vehicle (100) according to any one of claims 21-22 and 24-25, characterized in that The vehicle (100) further comprises: The third pre-charging branch is connected in parallel with any one of the fourteenth switch (K3') and the fifteenth switch (K4').

27. The vehicle (100) according to claim 26, characterized in that The third pre-charging branch includes a third pre-charging resistor and a seventeenth switch (K7') connected in series.

28. The vehicle (100) according to any one of claims 1, 2, 3-4, 21-22, 24-25 and 27, characterized in that The electrical device (120) comprises a heating film.

29. The vehicle (100) according to any one of claims 11, 13-14, 16, 21-22, 24-25 and 27, characterized in that The electric energy module (160) includes at least one of an energy storage module and a motor electronic control module.

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  • vehicle

    EP4799848A1