Power supply system and vehicle

Abstract

The application provides a power supply system and a vehicle, and relates to the technical field of backup power supply. The power supply system comprises a main power supply module and a backup power supply module. The main power supply module comprises a main battery and a first signal transceiver which are electrically connected, and the first signal transceiver is used to send a power supply state signal of the main battery. The backup power supply module is arranged in a cavity between a roof outer plate and a roof inner lining of the vehicle, and comprises a backup battery, a second signal transceiver and a on-off controller. The second signal transceiver is used to receive the power supply state signal and send a on-off control signal. The on-off controller is used to receive the on-off control signal and control the on-off state between the backup battery and a vehicle body domain system. The backup power supply module arranged in the cavity can provide emergency power supply for the vehicle body domain system, so as to form an emergency escape passage at a corresponding position of the vehicle, and ensure that the passengers can escape and get out of trouble in time.

Description

Technical Field

[0001] This application relates to the field of backup power technology, and in particular to a power supply system and vehicle. Background Technology

[0002] The vehicle's door locking and unlocking mechanisms, window regulators, and sunroof operating mechanisms are all powered by a battery for normal operation. In the event of a collision, fire, or submersion, if the power supply lines are damaged, the battery may be unable to power these devices, making it difficult to open the doors, windows, and sunroof in a timely manner, thus hindering occupants' escape. Utility Model Content

[0003] In view of this, the present application aims to provide a power supply system and vehicle to solve the technical problem that damage to the power supply line causes the doors, windows and sunroof to be unable to be opened, affecting the emergency escape of occupants.

[0004] To achieve the above objectives, this application provides a power supply system for use in a vehicle, the power supply system comprising: The main power supply module includes a main battery and a first signal transceiver that are electrically connected. The main battery is electrically connected to the vehicle's body domain system, and the first signal transceiver is used to send a power supply status signal of the main battery. The backup power supply module is located in the cavity between the outer roof panel and the inner roof lining of the vehicle, and includes a backup battery, a second signal transceiver, and an on / off controller. The second signal transceiver is electrically connected to both the first signal transceiver and the on / off controller to receive the power supply status signal and to send an on / off control signal to the on / off controller. The on / off controller is electrically connected to both the backup battery and the vehicle body domain system to receive the on / off control signal and to control the on / off state between the backup battery and the vehicle body domain system.

[0005] Furthermore, the vehicle body domain system includes a vehicle controller, a door lock / unlock unit, a window lifting unit, and a sunroof drive unit; The on / off controller is electrically connected to the vehicle control unit and to at least one of the door lock / unlock unit, the window lifting unit, and the sunroof drive unit.

[0006] Furthermore, the cavity is provided with a housing for accommodating the backup power supply module, and the housing is detachably connected to the outer panel of the vehicle roof.

[0007] Furthermore, the outer roof panel is provided with a connecting post penetrating the outer shell on the side near the inner roof liner, and the connecting post is screwed with a nut for pressing the outer shell tightly against the outer roof panel.

[0008] Furthermore, a sealing gasket is provided between the outer shell and the outer roof panel, and the connecting post passes through the sealing gasket.

[0009] Furthermore, a fire-resistant layer is provided on the side of the roof liner near the outer roof panel, and the orthographic projection of the fire-resistant layer covers the orthographic projection of the outer shell along the thickness direction of the outer roof panel.

[0010] Furthermore, a waterproof connector is connected to the side wall of the housing, and the waterproof connector is electrically connected to the wiring port of the on / off controller inside the housing; The vehicle body system is electrically connected to the waterproof connector via a connecting wire.

[0011] Furthermore, the main battery and the backup battery are electrically connected, and the main battery is used to charge the backup battery.

[0012] Furthermore, the backup battery is a blade-type battery.

[0013] Based on the same inventive concept, this application also provides a vehicle including any of the power supply systems described above.

[0014] As can be seen from the above, the power supply system and vehicle provided in this application include a backup power supply module comprising a main battery and a first signal transceiver. The backup power supply module further comprises a backup battery, a second signal transceiver, and an on / off controller. The second signal transceiver can receive power supply status signals sent by the first signal transceiver, and upon receiving the power supply status signals, generates corresponding on / off control signals and sends them to the on / off controller. Upon receiving the on / off control signals, the on / off controller can control the on / off state between the backup battery and the vehicle body domain system, so that the main power supply module can continuously supply power to the vehicle body domain system under normal operating conditions. Maintaining the various functions of the vehicle body domain system; when the main power supply module fails to supply power due to accidents or other reasons, the second signal transceiver and on / off controller can control the backup power supply module to temporarily supply power to the vehicle body domain system, enabling the vehicle body domain system to drive the door unlocking, windows and sunroof to open in a timely manner, ensuring that an emergency escape route can be provided in time in the event of an accident, helping occupants to escape safely, thereby improving vehicle safety; in addition, the backup power supply module is located in the cavity between the outer roof panel and the inner roof lining, which can avoid high-risk areas in accidents such as collisions, fires or falling into water, improving the continuity and reliability of the power supply system. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a block diagram of the connection structure of the power supply system in the embodiments of this application; Figure 2 This is a schematic diagram of the arrangement of the backup power supply module in the cavity from a first perspective in an embodiment of this application; Figure 3 This is a schematic diagram of the arrangement of the backup power supply module in the cavity from a second perspective in an embodiment of this application; Figure 4 This is a schematic diagram of the power supply system circuit structure in an embodiment of this application.

[0017] Explanation of reference numerals in the attached figures: 1. Main power supply module; 101. Main battery; 102. First signal transceiver; 2. Backup power supply module; 201. Backup battery; 202. Second signal transceiver; 203. On / off controller; 3. Vehicle body control system; 301. Vehicle infotainment system controller; 302. Door lock / unlock unit; 303. Window lift unit; 304. Sunroof drive unit; 410. Outer roof panel; 420. Inner roof lining; 430. Fire-resistant layer; 441. Outer shell; 442. Connecting post; 443. Nut; 444. Sealing gasket; 445. Waterproof connector. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] In the event of a collision, fire, or submersion, open windows, roofs, and sunroofs can serve as emergency escape routes for occupants to escape. Specifically, the timely establishment of an emergency escape route requires that the door locking / unlocking mechanisms, window regulators, and sunroof actuators be functioning properly, while also ensuring that the vehicle's battery can provide power to these devices. However, if the main power supply lines are damaged during an accident (e.g., a collision causing the wiring harness to be compressed by the sheet metal structure, a battery fire causing cable corrosion, or submersion causing a short circuit), the battery may fail to supply power to the door locking / unlocking mechanisms, window regulators, and sunroof actuators. This can prevent the doors, windows, and sunroof from unlocking or opening, affecting the efficiency and effectiveness of the emergency escape route formation, hindering occupants from escaping the vehicle in time, and posing a potential threat to their lives and property.

[0021] This application provides a power supply system for use in a vehicle, in conjunction with the attached... Figures 1-4 The content shown provides a detailed description of the power supply system.

[0022] A power supply system includes a main power supply module 1 and a backup power supply module 2. The main power supply module 1 includes a main battery 101 and a first signal transceiver 102 electrically connected to each other. The main battery 101 is electrically connected to a vehicle body domain system 3. The first signal transceiver 102 is used to transmit a power supply status signal of the main battery 101. The backup power supply module 2 is located in the cavity between the vehicle roof outer panel 410 and the roof inner liner 420, and includes a backup battery 201, a second signal transceiver 202, and an on / off controller 203. The second signal transceiver 202 is electrically connected to both the first signal transceiver 102 and the on / off controller 203, and is used to receive the power supply status signal and to send an on / off control signal to the on / off controller 203. The on / off controller 203 is electrically connected to both the backup battery 201 and the body domain system 3, and is used to receive the on / off control signal and to control the on / off state between the backup battery 201 and the body domain system 3.

[0023] Specifically, see Figure 1 and Figure 4 The power supply system provided in this application includes a main power supply module 1, which may include a main battery 101 and a first signal transceiver 102 electrically connected. The main battery 101 is electrically connected to the vehicle's body domain system 3. When the main power supply module 1 and the body domain system 3 are normally connected, the main battery 101 can serve as the main power supply device for the body domain system 3, providing power to it. The first signal transceiver 102 is electrically connected to the main battery 101 through a monitoring circuit, enabling it to acquire and monitor the operating parameters of the main battery 101 in real time. These operating parameters may include the remaining charge, operating temperature, supply voltage, and supply current of the main battery 101. After acquiring the operating parameters of the main battery 101 through the monitoring circuit, the first signal transceiver 102 can convert these parameters into a power supply status signal corresponding to the main battery 101 and transmit it. In this way, by using the power supply status signal sent by the first signal transceiver 102, it is possible to determine whether the main power supply module 1 can supply power to the vehicle body domain system 3 normally, so as to detect whether there is a power supply fault between the main battery 101 and the vehicle body domain system 3.

[0024] For example, taking the power supply status detected by the first transceiver 102 as the power supply voltage, when the first transceiver 102 detects that the power supply voltage of the main battery 101 is greater than or equal to a preset voltage threshold, the main power supply module 1 can effectively supply power to the vehicle body domain system 3, indicating that the main battery 101 itself and the power supply line between the main battery 101 and the vehicle body domain system 3 have not been damaged; conversely, when the power supply voltage received from the first transceiver 102 is less than the preset voltage threshold, the main power supply module 1 cannot effectively supply power to the vehicle body domain system 3, indicating that the main battery 101 itself and / or the power supply line between the main battery 101 and the vehicle body domain system 3 may be damaged. If the vehicle is involved in an accident at this time, the windows, doors or sunroof cannot be opened through the vehicle body domain system 3, thereby affecting the emergency escape of the occupants.

[0025] It should be noted that the preset voltage threshold is a pre-set critical value used to determine whether the main battery 101101 can provide a stable voltage.

[0026] For example, the main battery 101 can be a storage battery in a vehicle, and the first signal transceiver 102 can be integrated into the BMS (Battery Management System) chip and be part of it. It can acquire and monitor the remaining power, operating temperature, voltage, current and other operating parameters of the main battery 101 in real time. At the same time, it can also manage and regulate the operating status based on the operating parameters of the main battery 101. The BMS chip technology is mature and easy to obtain, which is conducive to controlling the cost of the power supply system, thereby reducing the degree of modification to the main power supply module 1.

[0027] The power supply system provided in this application also includes a backup power supply module 2; see reference Figure 2 and Figure 3 The backup power supply module 2 can be arranged in the cavity between the outer roof panel 410 and the inner roof liner 420 of the vehicle, so that it is located above the cabin. This arrangement of the backup power supply module 2 can make reasonable use of the vehicle body structure space and reduce the encroachment on the cabin interior space. On the other hand, the cavity formed between the outer roof panel 410 and the inner roof liner 420 can provide physical protection for the backup power supply module 2 and can effectively hide and shield the backup power supply module 2.

[0028] Furthermore, the location of the backup power supply module 2 takes into account various scenarios, including vehicle collisions, fires, and water accidents. For example, collisions often occur at the front or rear of the vehicle, fires tend to spread from the bottom, and in water accidents, the front of the vehicle enters the water first. Therefore, placing the backup power supply module 2 on the roof avoids these high-risk areas, reducing the probability of damage to the module in an accident. This extends the power supply time of the backup power supply module 2 to the vehicle body system 3, allowing occupants time to escape and creating an emergency escape route. Thus, even if the main power supply system fails due to an accident and cannot supply power to the vehicle body system 3, the backup power supply module 2 can promptly supply power, ensuring that doors, windows, and sunroofs can be opened reliably to create an emergency escape route and ensure the safe evacuation of occupants.

[0029] See Figure 1 and Figure 4 The backup power supply module 2 provided in this application may include a backup battery 201, a second transceiver 202, and an on / off controller 203, which are electrically connected. Specifically, the second transceiver 202 is electrically connected to the first transceiver 102 and the on / off controller 203, respectively, so that signal transmission channels are established between the first transceiver 102 and the second transceiver 202, and between the second transceiver 202 and the on / off controller 203. Therefore, the second transceiver 202 can receive the voltage status signal of the main battery 101 sent by the first transceiver 102. After the second transceiver 202 receives the voltage status signal, based on the received voltage status signal, the main control unit of the backup power supply module 2 can generate an on / off control signal to control the on / off state between the backup battery 201 and the vehicle body domain system 3. At this time, the second transceiver 202 can send the on / off control signal to the on / off controller 203 connected to it, so that the on / off control signal can be executed by the on / off controller 203.

[0030] Furthermore, in addition to being electrically connected to the second transceiver 202, the on / off controller 203 is also electrically connected to the backup battery 201 and the vehicle body domain system 3. Therefore, the on / off controller 203 can receive the on / off control signal sent by the second transceiver 202, and can control the on / off state between the backup battery 201 and the vehicle body domain system 3 based on the received on / off control signal, thereby controlling the electrical connection state between the backup battery 201 and the vehicle body domain system 3. This allows the backup power supply module 2 to selectively supply power to the vehicle body domain system 3 according to the actual situation, ensuring that the backup power supply module 2 can supply power to the vehicle body domain system 3 in a timely manner when the main power supply module 1 fails to supply power, in order to cope with vehicle malfunctions or vehicle accidents.

[0031] Specifically, when the main power supply module 1 can supply power to the body domain system 3 normally, the on / off controller 203 can control the backup battery 201 to switch to a disconnected state with the body domain system 3 according to the received on / off control command, so that the main power supply module 1 can continuously supply power to the body domain system 3 and ensure that the various functions of the vehicle can maintain a stable operating state; when the vehicle is involved in an accident and the main power supply module 1 is unable to supply power to the body domain system 3, the second signal transceiver 202 can control the backup battery 201 to switch to a conductive state with the body domain system 3, so that the backup battery 201 can temporarily supply power to the body domain system 3, so as to ensure that the body domain system 3 can continue in an emergency, which helps to form an emergency escape channel for occupants to escape in the window, door or sunroof area and improve the safety of the whole vehicle.

[0032] For example, the second signal transceiver 202 and the on / off controller 203 are integrated as part of the main control board, which helps to shorten the signal transmission path, ensure the stability of signal transmission, and also facilitates the control of the size of the backup power supply module 2, improves the degree of integration, and reduces the space occupied.

[0033] Furthermore, the first transceiver 102 of the main power supply module 1 can detect the power supply status of the main battery 101 and send the acquired power supply status signal to the second transceiver 202. Thus, upon receiving the power supply status signal, the second transceiver 202 can directly determine whether the main power supply module 1 has experienced a power supply failure based on the specific situation of the power supply status signal, and can use this to determine whether an accident has occurred in the vehicle. Compared to technical solutions that combine sensor components to detect whether an accident has occurred in the vehicle and adjust the power supply method accordingly, the power supply system provided in this application can identify whether the main power supply system has experienced a power supply failure without adding additional sensor components, determine whether the main power supply module 11 is faulty, and assist in determining whether an accident has occurred in the vehicle. This helps reduce the complexity of the vehicle and production costs, while also improving the accuracy of accident judgment.

[0034] In summary, the backup power supply module 2 includes a main battery 101 and a first signal transceiver 102. The backup power supply module 2 also includes a backup battery 201, a second signal transceiver 202, and an on / off controller 203. The second signal transceiver 202 can receive power status signals sent by the first signal transceiver 102. Upon receiving the power status signal, the main control unit of the backup power supply module 2 can generate corresponding on / off control signals and send them to the on / off controller 203. The on / off controller 203, upon receiving the on / off control signals, can control the on / off state between the backup battery 201 and the vehicle body domain system 3, so that the main power supply module 1 can provide power to the vehicle body domain system 3 under normal operating conditions. The main power supply module 1 provides continuous power to maintain the various functions of the vehicle body domain system 3. When the main power supply module 1 fails to supply power due to accidents or other reasons, the second signal transceiver 202 and the on / off controller 203 can control the backup power supply module 2 to temporarily supply power to the vehicle body domain system 3, enabling the vehicle body domain system 3 to drive the doors to unlock, windows and sunroof to open in a timely manner, ensuring that an emergency escape route can be provided in time when the vehicle is involved in an accident, helping the occupants to escape safely, thereby improving the safety of the vehicle. In addition, the backup power supply module 2 is arranged in the cavity between the outer roof panel 410 and the inner roof lining 420, which can avoid high-risk areas in accidents such as collisions, fires or falling into water, improving the continuity and reliability of the power supply system.

[0035] In some embodiments, the power supply status signal includes a first voltage signal, and the on / off control signal includes a disconnect signal; when the second transceiver 202 receives the first voltage signal, the second transceiver 202 can send a disconnect signal to the on / off controller 203 to control the disconnection of the backup battery 201 from the vehicle body domain system 3; wherein, the first voltage signal can be a signal that the power supply voltage of the main battery 101 to the vehicle body domain system 3 is greater than or equal to a preset voltage threshold, used to characterize that the power supply line of the main battery 101 can normally supply power to the vehicle body domain system 3; the preset voltage threshold is a pre-set critical value used to determine whether the main battery 101 can provide a stable voltage.

[0036] Specifically, when the main power supply module 1 is in normal operating condition, it can provide a stable power supply to the vehicle domain system 3 to ensure that the vehicle domain system 3 maintains normal operation. When the second transceiver 202 of the backup power supply module 2 receives the first voltage signal sent by the first transceiver 102 of the main power supply module 1, the main control unit of the backup power supply module 2 can judge the first voltage signal. If the first voltage signal is determined to be greater than or equal to a preset voltage threshold, it indicates that the main power supply module 11 is intact and can provide sufficient and stable power to the vehicle domain system 33. At this time, the main control unit of the backup power supply module 2 generates a disconnection signal, and the second transceiver 202 sends the disconnection signal to the on / off controller 203, so that the on / off controller 203 controls the backup battery 201 to switch to a disconnected state with the vehicle domain system 3 through the disconnection signal, ensuring that the main power supply module 1 prioritizes power supply to the vehicle domain system 3, avoiding energy consumption of the backup power supply module 2, and ensuring the efficient and stable operation of the vehicle domain system 3.

[0037] In some embodiments, the power supply status signal includes a second voltage signal, and the on / off control signal includes a conduction signal; when the second transceiver 202 receives the second voltage signal, the second transceiver 202 can send a conduction signal to the on / off controller 203 to control the connection between the backup battery 201 and the vehicle body domain system 3; wherein, the second voltage signal can be a signal that the power supply voltage of the main battery 101 to the vehicle body domain system 3 is less than a preset voltage threshold, used to characterize the failure of the power supply line of the main battery 101 to supply power to the vehicle body domain system 3; the preset voltage threshold is a pre-set critical value used to determine whether the main battery 101 can provide a stable voltage.

[0038] Specifically, when the main power supply module 1 fails to supply power, the backup power supply module 2 can supply power to the vehicle body domain system 3 to ensure that the vehicle body domain system 3 can operate normally, so that the vehicle body domain system 3 can unlock the doors and open the windows and sunroof in the event of a vehicle accident, so as to form an emergency escape route. When the second transceiver 202 of the backup power supply module 2 receives the second voltage signal from the first transceiver 102 of the main power supply module 1, the main control unit of the backup power supply module 2 can judge the second voltage signal. If the second voltage signal is determined to be less than the preset voltage threshold, it indicates that the power supply line of the main power supply module 1 is damaged or has a fault and cannot supply power to the vehicle body domain system 3 normally. At this time, the main control unit of the backup power supply module 2 generates a conduction signal, and the second transceiver 202 can send the conduction signal to the on / off controller 203, so that the on / off controller 203 controls the backup battery 201 to switch to the conduction state with the vehicle body domain system 3 through the conduction signal, so that the backup power supply module 2 replaces the main power supply module 1 to temporarily supply power to the vehicle body domain system 3, so as to drive the door to unlock and the windows and sunroof to open, so that an emergency escape channel can be formed in time when the vehicle is in an accident, ensuring that the occupants can escape safely.

[0039] In some embodiments, the vehicle body domain system 3 includes a vehicle controller 301, a door lock / unlock unit 302, a window lift unit 303, and a sunroof drive unit 304; the on / off controller 203 is electrically connected to the vehicle controller 301 and to at least one of the door lock / unlock unit 302, the window lift unit 303, and the sunroof drive unit 304.

[0040] See Figure 1 and Figure 4 The vehicle infotainment controller 301 is a control module responsible for coordinating and managing the in-vehicle infotainment system, human-machine interface and related electronic functions, and integrates functions such as audio playback, navigation, Bluetooth communication, voice recognition, vehicle settings, data interaction and emergency call; the door lock unlocking unit 302 includes a lock control module for controlling the door lock unlocking and an electric drive module for driving the door movement, the two work together to realize the opening and closing of the door; the window lifting unit 303 can provide power for the lifting of the window to drive the window glass to rise or fall; the sunroof drive unit 304 can drive and control the opening and closing of the sunroof.

[0041] When a vehicle accident occurs and the main power supply module 1 is unable to provide power to the vehicle body domain system 3, the on / off controller 203 can enable the backup power supply module 2 to intervene in a timely manner. Specifically, on the one hand, after the backup battery 201 of the backup power supply module 2 is connected to the vehicle controller 301, it can supply power to the vehicle controller 301, ensuring that functions such as emergency calls are activated normally. On the other hand, the backup battery 201 of the backup power supply module 2 is also electrically connected to at least one of the door lock unlocking unit 302, the window lifting unit 303, and the sunroof driving unit 304. If the backup battery 201 can supply power to the door lock unlocking unit 302, it can unlock and drive the door to open; if the backup battery 201 can supply power to the window lifting unit 303, it can drive the window to lower; if the backup battery 201 can supply power to the sunroof driving unit 304, it can open the sunroof. The aforementioned doors, windows, and sunroof can form an effective emergency escape route in the corresponding positions, ensuring that the occupants in the cabin can escape in time.

[0042] For example, the on / off controller 203 can be electrically connected to the vehicle controller 301, the door lock / unlock unit 302, the window lifting unit 303, and the sunroof drive unit 304 via a CAN bus. This ensures that the backup power supply module 2 can stably provide power support to the vehicle body domain system 3 after an accident, and ensures the reliability of power transmission and the stability of data communication.

[0043] In some embodiments, the cavity is provided with a housing 441 for accommodating the backup power supply module 2, and the housing 441 is detachably connected to the roof panel 410.

[0044] Specifically, the backup power supply module 2 is located within the cavity formed between the outer roof panel 410 and the inner roof liner 420. This effectively avoids high-risk areas in accidents such as collisions, fires, or water inrushes, reducing the probability of damage. Thus, it can act as an emergency power source to provide power to the vehicle body system 3 in emergencies. See details... Figure 2 and Figure 3 To facilitate the proper installation of this module, the outer casing 441 can accommodate the backup power supply module 2, and the outer casing 441 can provide support and protection for the backup power supply module 2. In addition, the outer casing 441 and the roof outer panel 410 can be connected in a detachable manner, which helps to reduce the difficulty of disassembling and assembling the backup power supply module 2 during vehicle manufacturing or maintenance, and facilitates disassembly, assembly and replacement.

[0045] For example, the housing 441 may be made of phenolic plastic so that the formed housing 441 has excellent flame retardancy and insulation, while having good mechanical strength, which helps to improve the protection effect and safety performance of the backup power supply module 2.

[0046] In some embodiments, the outer roof panel 410 is provided with a connecting post 442 that penetrates the outer shell 441 on the side near the inner roof liner 420. The connecting post 442 is screwed with a nut 443 for pressing the outer shell 441 against the outer roof panel 410.

[0047] Specifically, see Figure 2 and Figure 3 Inside the cavity, the outer roof panel 410 is provided with a connecting post 442 that penetrates the outer shell 441 on the side near the inner roof liner 420, which can provide an installation positioning point for the outer shell 441. After the connecting post 442 passes through the outer shell 441, a nut 443 can be screwed and tightened at the end of the connecting post 442. The pressing action of the nut 443 will firmly press the outer shell 441 onto the outer roof panel 410, which will help simplify the installation process, reduce the assembly difficulty, and improve the installation stability and vibration resistance of the backup power supply module 2 in the roof cavity.

[0048] In some embodiments, a sealing gasket 444 is provided between the housing 441 and the roof panel 410, and the connecting post 442 passes through the sealing gasket 444.

[0049] Specifically, see Figure 2 and Figure 3When installing the outer shell 441 onto the roof panel 410 using the connecting post 442 and nut 443, a sealing gasket 444 can be added between the outer roof panel 410 and the edge area of ​​the outer shell 441. This can increase the sealing effect between the installed outer shell 441 and the outer roof panel 410, providing dust and water protection. At the same time, the connecting post 442 can be installed through the sealing gasket 444 to position the sealing gasket 444, preventing misalignment of the sealing gasket 444 and affecting the sealing effect on the outer shell 441.

[0050] In some embodiments, the roof liner 420 is provided with a fire-resistant layer 430 on the side near the roof outer panel 410, and the orthographic projection of the fire-resistant layer 430 covers the orthographic projection of the outer shell 441 along the thickness direction of the roof outer panel 410.

[0051] Specifically, see Figure 3 and Figure 4 To address vehicle fire incidents, a fire-resistant layer 430 can be installed on the side of the roof lining 420 near the roof outer panel 410, such that the orthographic projection of the fire-resistant layer 430 in the thickness direction of the roof outer panel 410 covers the orthographic projection of the outer shell 441, thereby forming a fire-resistant protection area within the roof lining 420. When a vehicle fires or is subjected to high temperatures, the fire-resistant layer 430 prevents flames or high temperatures from directly penetrating the roof lining 420 and damaging the backup power supply module 2, thus improving the power supply performance of the backup power supply module 2 in fire situations.

[0052] For example, the fire-resistant layer 430 can be made of flame-retardant and heat-insulating materials such as ceramic fiber, aluminum silicate fiber, and mica composite material, and can be attached to the surface of the roof lining 420 facing the roof outer panel 410 by means of bonding, hot pressing or mechanical fixing.

[0053] In some embodiments, a waterproof connector 445 is connected to the side wall of the housing 441, and the waterproof connector 445 is electrically connected to the wiring port of the on / off controller 203 inside the housing 441; the vehicle body system 3 is electrically connected to the waterproof connector 445 via a power cord.

[0054] Specifically, to ensure the reliability of the connection between the vehicle body domain system 3, the backup power supply module 2, and the main power supply module 1, so that the backup power supply module 2 can still function to the vehicle body domain system 3 in the event of a vehicle falling into water. See [reference needed]. Figure 3 A waterproof connector 445 can be fixedly connected to the side wall of the housing 441. Inside the housing 441, the waterproof connector 445 is electrically connected to the wiring port of the on / off controller 203 to enable electrical connection between the two. Outside the housing 441, the vehicle body system 3 is electrically connected to the waterproof connector 445 via a wiring wire. The application of the waterproof connector 445 can effectively improve the waterproof performance of the wiring point of the housing 441, ensuring that the backup power supply module 2 can provide stable power supply in harsh environments.

[0055] In some embodiments, the main battery 101 is electrically connected to the backup battery 201, and the main battery 101 is used to charge the backup battery 201.

[0056] To avoid significant power depletion of the backup battery 201 of the backup power supply module 2 due to long-term idleness, and to maintain the aesthetics and integrity of the roof lining 420, the main battery 101 can be electrically connected to the backup battery 201. This allows the main battery 101 to charge the backup battery 201 when it is depleted, ensuring that the backup power supply module 2 has sufficient power to drive the vehicle body system 3 in the event of an accident.

[0057] Furthermore, the backup power supply module 2 can monitor the remaining power of the backup battery 201 in real time through a monitoring circuit. When the backup power supply module 2 detects that the power of the backup battery 201 is lower than a first preset power threshold (e.g., 50% of the remaining power of the backup battery 201), it can generate a charging signal using its main control unit and send the charging signal to the first transceiver 102 of the main power supply module 1 using the second transceiver 202. After receiving the charging signal, the first transceiver 102 can detect the remaining power of the main battery 101 through the main control unit of the main power supply module 1. If it detects that the remaining power of the main battery 101 is greater than the second preset power threshold (e.g., 40% of the remaining power of the main battery 101), it is determined that the main battery 101 has surplus power supply capacity, and then the main control module is controlled to start the charging process, with the main battery 101 replenishing the backup battery 201 with power. In this way, without affecting the normal power supply of the main battery 101 to the vehicle body domain system 3, the availability and reliability of the backup battery 201 in emergency situations can be ensured.

[0058] It should be noted that the first preset power threshold is the power threshold preset by the backup battery 201; the second preset power threshold is the power threshold preset by the main battery 101.

[0059] In some embodiments, the backup battery 201 is a blade battery.

[0060] Specifically, because blade-type batteries have advantages such as thinness and high energy density, they can fit into the relatively narrow cavity between the outer roof panel 410 and the inner roof liner 420, so as to make effective use of the limited space and ensure that the inner roof liner 420 has a good shielding effect on the backup battery 201.

[0061] Based on the same inventive concept, this application also provides a vehicle; specifically, the vehicle may include the power supply system described in any of the above embodiments, and therefore the vehicle possesses all the advantages and beneficial effects of the above power supply system, which will not be repeated here.

[0062] It should be noted that some embodiments of this application have been described above. Other embodiments are within the scope of the appended claims.

[0063] The various embodiments in this application are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0064] The description in this application is given for illustrative purposes and is not intended to be exhaustive or to limit the application to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of this application and to enable those skilled in the art to understand this application and design various embodiments with various modifications suitable for a particular purpose.

[0065] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in the details for the sake of brevity.

[0066] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description.

[0067] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A power supply system for use in a vehicle, characterized in that, The power supply system includes: The main power supply module includes a main battery and a first signal transceiver that are electrically connected. The main battery is electrically connected to the vehicle's body domain system, and the first signal transceiver is used to send a power supply status signal of the main battery. The backup power supply module is located in the cavity between the outer roof panel and the inner roof lining of the vehicle, and includes a backup battery, a second signal transceiver, and an on / off controller. The second signal transceiver is electrically connected to both the first signal transceiver and the on / off controller to receive the power supply status signal and to send an on / off control signal to the on / off controller. The on / off controller is electrically connected to both the backup battery and the vehicle body domain system to receive the on / off control signal and to control the on / off state between the backup battery and the vehicle body domain system.

2. The power supply system according to claim 1, characterized in that, The vehicle body domain system includes a vehicle controller, a door lock / unlock unit, a window lift unit, and a sunroof drive unit; The on / off controller is electrically connected to the vehicle control unit and to at least one of the door lock / unlock unit, the window lifting unit, and the sunroof drive unit.

3. The power supply system according to claim 1, characterized in that, The cavity is provided with a housing for accommodating the backup power supply module, and the housing is detachably connected to the outer panel of the vehicle roof.

4. The power supply system according to claim 3, characterized in that, The outer roof panel is provided with a connecting post that penetrates the outer shell on the side near the inner roof liner. The connecting post is screwed with a nut for pressing the outer shell tightly against the outer roof panel.

5. The power supply system according to claim 4, characterized in that, A sealing gasket is provided between the outer shell and the outer roof panel, and the connecting column passes through the sealing gasket.

6. The power supply system according to claim 3, characterized in that, The inner lining of the roof is provided with a fire-resistant layer on the side near the outer roof panel. Along the thickness direction of the outer roof panel, the orthographic projection of the fire-resistant layer covers the orthographic projection of the outer shell.

7. The power supply system according to claim 3, characterized in that, The side wall of the housing is connected to a waterproof connector, which is electrically connected to the wiring port of the on / off controller inside the housing; the vehicle body system is electrically connected to the waterproof connector via a connecting wire.

8. The power supply system according to claim 1, characterized in that, The main battery and the backup battery are electrically connected, and the main battery is used to charge the backup battery.

9. The power supply system according to claim 1, characterized in that, The backup battery is a blade battery.

10. A vehicle, characterized in that, Includes the power supply system as described in any one of claims 1-9.

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