Storage battery system and vehicle

Abstract

The utility model provides a storage battery system and a vehicle. The storage battery system comprises a battery pack, a solar cell panel, a voltage converter, a storage battery, a first switch and a load module, the voltage converter is connected with the output end of the solar cell panel, the battery pack, the storage battery and the first end of the first switch. The second end of the first switch is connected with the load module. The voltage converter is configured to respond to power-on of the vehicle and transmit a first signal to the control end of the first switch; and the first switch is closed under the driving of the first signal, and a third power supply loop between the voltage converter and the load module is conducted, so that power is supplied to the load module through the voltage converter. The solar cell panel and the battery pack are used for supplying power to the load module, namely the whole vehicle load, consumption of the battery pack is reduced, and the cruising ability of the vehicle is improved; after the vehicle is powered off, the electric quantity output by the solar cell panel is transmitted to the storage battery through the voltage converter so as to charge the storage battery, and the situation that the storage battery is frequently lack of electricity is avoided.

Description

Technical Field

[0001] The present application relates to the field of new energy vehicles, and more specifically, to a battery system and a vehicle. Background Art

[0002] New energy vehicles are powered by electricity, unlike traditional vehicles that use gasoline or diesel as power. This not only effectively reduces the consumption of traditional energy, but also effectively avoids automobile exhaust emissions, thereby improving air quality.

[0003] However, in the power supply systems of new energy vehicles currently in use, the high-voltage battery pack or generator consumes a lot of electricity in the vehicle, resulting in limited vehicle endurance, and the power supply battery often runs out of power after the vehicle is powered off. Utility Model Content

[0004] To solve the above problems, the present application provides a battery system and a vehicle. The battery system is provided with a solar panel, and uses the solar panel and a battery pack to supply power to a load module, i.e., the entire vehicle load, thereby relatively reducing the consumption of the battery pack and improving the vehicle's endurance.

[0005] In a first aspect, the present application provides a battery system, the battery system comprising:

[0006] A battery pack, a solar panel, a voltage converter, a storage battery, a first switch and a load module;

[0007] The voltage converter is respectively connected to the output end of the solar panel, the battery pack, the storage battery and the first end of the first switch, and the second end of the first switch is connected to the load module;

[0008] Wherein, the first power supply circuit between the solar cell panel and the voltage converter is in a normally conducting state, and the second power supply circuit between the battery pack and the voltage converter is in a normally conducting state;

[0009] The voltage converter is configured to transmit a first signal to a control terminal of the first switch in response to power-on of the vehicle;

[0010] The first switch is closed under the driving of the first signal, and the third power supply circuit between the voltage converter and the load module is turned on, so as to supply power to the load module through the voltage converter;

[0011] Wherein, a charging current is transmitted on a fifth power supply circuit between the voltage converter and the battery.

[0012] Optionally, the battery system further includes:

[0013] A detection module, a second switch and a third switch;

[0014] The third switch is electrically connected to the fifth power supply circuit, and the storage battery is respectively connected to a first end of the second switch and a first end of the third switch, a second end of the second switch is connected to one end of the load module, and a second end of the third switch is connected to one end of the voltage converter;

[0015] One end of the detection module is connected to the battery, and the other end is electrically connected to the voltage converter;

[0016] The detection module is configured to collect the charge of the battery;

[0017] The voltage converter is configured to transmit a second signal to the control end of the second switch in response to the charge of the storage battery being lower than a first threshold, and the second switch is disconnected under the driving of the second signal to cut off a fourth power supply circuit between the storage battery and the load module;

[0018] And, the first signal is transmitted to the control end of the third switch, and the third switch is closed under the driving of the first signal to turn on the fifth power supply circuit, so that the charging current is transmitted on the fifth power supply circuit.

[0019] Optionally, the voltage converter is further configured to transmit the second signal to the control end of the third switch in response to the charge amount of the battery being higher than a second threshold, and the third switch is disconnected under the driving of the second signal to cut off the fifth power supply circuit;

[0020] and transmitting the first signal to the second switch, whereby the second switch is closed under the driving of the first signal to conduct the fourth power supply circuit;

[0021] When the fourth power supply circuit is turned on, the storage battery transmits current to the load module via the fourth power supply circuit.

[0022] Optionally, when the vehicle is powered off, the current on the second power supply circuit disappears;

[0023] The voltage converter is configured to transmit the first signal to the control end of the first switch in response to power-off of the vehicle, and transmit the second signal to the control end of the second switch and the control end of the third switch;

[0024] The first switch is closed under the driving of the first signal to turn on the third power supply circuit;

[0025] The second switch and the third switch are opened under the driving of the second signal to cut off the fourth power supply loop and the fifth power supply loop.

[0026] Optionally, the battery system further includes a controller;

[0027] The controller is integrated on the solar panel;

[0028] In response to the power supply current of the controller being less than a current threshold, the voltage converter transmits the first signal to the first switch, and transmits the first signal to the control terminal of the second switch;

[0029] The first switch is closed under the driving of the first signal to turn on the third power supply circuit;

[0030] The second switch is driven by the first signal to close to conduct the fourth power supply loop.

[0031] Optionally, when the voltage converter responds to the power supply current of the controller being less than a current threshold, the voltage converter transmits a shutdown signal to the load module, transmits the second signal to the second switch, and transmits the first signal to the third switch in response to the charge of the battery being lower than a third threshold;

[0032] The load module is powered off and put into sleep mode under the driving of the shutdown signal;

[0033] The second switch is opened under the driving of the second signal to cut off the fourth power supply circuit;

[0034] The third switch is closed under the driving of the first signal to turn on the fifth power supply loop;

[0035] The third threshold is smaller than the first threshold and smaller than the second threshold.

[0036] Optionally, in response to the power supply current of the controller being greater than the current threshold, the voltage converter transmits the first signal to the first switch, and transmits the first signal to both the control end of the second switch and the control end of the third switch;

[0037] Wherein, the first switch is closed under the driving of the first signal to conduct the third power supply circuit;

[0038] The second switch is closed under the driving of the first signal to turn on the fourth power supply circuit;

[0039] The third switch is closed under the driving of the first signal to turn on the fifth power supply loop.

[0040] Optionally, the battery system further comprises an activation module;

[0041] One end of the activation module is connected to a sensor in an ignition device of a vehicle engine, and the other end is connected to the voltage converter;

[0042] The activation module is configured to transmit a third signal to the voltage converter in response to a start signal from the engine ignition device, and the voltage converter is driven by the third signal to transmit the first signal to the first switch.

[0043] Optionally, the activation module is also configured to transmit a fourth signal to the voltage converter in response to a shutdown signal of the engine ignition device. Driven by the fourth signal, the voltage converter turns on the connection circuit between the detection module and the battery so that the detection module collects the charge of the battery.

[0044] In a second aspect, the present application provides a vehicle, comprising the battery system provided in the first aspect.

[0045] Beneficial effects:

[0046] The present application provides a power storage system and a vehicle. When the vehicle is powered on, a battery pack on the vehicle is started, and a first power supply circuit, a second power supply circuit, and a third power supply circuit are controlled to be turned on through a voltage converter. A solar panel and a battery pack transmit current to the voltage converter through the first power supply circuit and the second power supply circuit respectively, and the voltage converter then transmits current to a load module through the third power supply circuit, that is, the solar panel and the battery pack are used to supply power to the load module at the same time, which is beneficial to reducing the power consumption of the battery pack and thus improving the endurance of the vehicle; the power output by the solar panel is transmitted to the battery through the voltage converter, so that a charging current is transmitted to the fifth power supply circuit between the voltage converter and the battery to charge the battery, thereby avoiding the situation where the battery is often out of power. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0048] Figure 1 This is a schematic diagram of the structure of the battery system proposed in the embodiment of the present application. Figure 1 ;

[0049] Figure 2This is a schematic diagram of the structure of the battery system proposed in the embodiment of the present application. Figure 2 ;

[0050] Figure 3 This is a schematic diagram of the structure of the battery system proposed in the embodiment of the present application. Figure 3 ;

[0051] Figure 4 This is a schematic diagram of the structure of the battery system proposed in the embodiment of the present application. Figure 4 . DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0053] In the drawings, the size of the constituent elements, the thickness of the layer or the area may be exaggerated for the sake of clarity. Therefore, any implementation of the present disclosure is not necessarily limited to the size shown in the drawings, and the shapes and sizes of the components in the drawings do not reflect the true proportions. In addition, the drawings schematically show ideal examples, and any implementation of the present disclosure is not limited to the shapes or values ​​shown in the drawings.

[0054] In related technologies, the power supply system of new energy vehicles mainly relies on high-voltage battery packs / engines for power supply. When the vehicle is powered on or off, it is powered by the above power supply, resulting in a huge amount of power consumption and limited vehicle endurance.

[0055] In order to solve the above problems, the present application provides a battery system and a vehicle, which introduce solar panels into the vehicle power supply system. By reasonably configuring the connection relationship between the solar panels, battery packs and voltage converters, when the vehicle is powered on, the solar panels and battery packs are used to simultaneously supply power to the entire vehicle load, effectively reducing the consumption of the battery pack and further improving the vehicle's endurance.

[0056] The following describes in detail a battery system and a vehicle provided by the present application through specific embodiments:

[0057] See also Figure 1 , Figure 1 The structure of the battery system provided by the present application is shown in FIG. Figure 1 , the battery system includes: a battery pack, a solar panel, a voltage converter, a battery, a first switch and a load module;

[0058] The voltage converter is respectively connected to the output end of the solar panel, the battery pack, the storage battery and the first end of the first switch, the second end of the first switch is connected to the load module, and the storage battery is connected to the load module;

[0059] Wherein, the first power supply circuit between the solar cell panel and the voltage converter is in a normally conducting state, and the second power supply circuit between the battery pack and the voltage converter is in a normally conducting state;

[0060] a voltage converter configured to transmit a first signal to a control terminal of the first switch in response to powering on the vehicle;

[0061] The first switch is closed under the driving of the first signal, and the third power supply circuit between the voltage converter and the load module is turned on to supply power to the load module through the voltage converter;

[0062] Wherein, a charging current is transmitted on a fifth power supply circuit between the voltage converter and the battery.

[0063] It should be noted that the battery pack refers to the high-voltage battery pack or generator in the vehicle power supply system;

[0064] The solar panel refers to a monocrystalline silicon solar panel, a polycrystalline silicon solar panel or an amorphous silicon solar panel, and the type of the solar panel is not specifically limited in the embodiments of the present application;

[0065] In some implementations, the voltage converter is a DCDC converter;

[0066] A DCDC converter is a switching power supply chip whose main function is to convert a direct current (DC) source from one voltage level to another;

[0067] The first switch refers to a relay, which is automatically closed or closed by receiving a signal transmitted by the DCDC converter;

[0068] The normally on state means that the first power supply circuit between the solar panel and the DCDC converter is always on; when the battery pack is started, the second power supply circuit between the battery pack and the DCDC converter is always on; in the on state, the solar panel supplies power to the DCDC converter through the first power supply circuit, and the battery pack supplies power to the DCDC converter through the second power supply circuit.

[0069] The vehicle is powered on, which means that the main systems and equipment of the vehicle have been powered on and are ready to work, including the vehicle's engine, electrical equipment and other related systems. Specifically, it means that the engine is in the starting state;

[0070] The first signal is an electrical signal indicating that the first switch is closed;

[0071] The load module refers to the entire vehicle load, including high-power loads and low-power loads.

[0072] It should be noted that the above-mentioned DCDC converter is connected to the output end of the solar panel through a power line to form a first power supply circuit, is connected to the battery pack through a power line to form a second power supply circuit, and is connected to the first end of the first switch through a power line to form a third power supply circuit.

[0073] By setting the above structure, when the vehicle is powered on, the battery pack starts, so that current is transmitted in the first power supply circuit and the second power supply circuit. After the DCDC converter controls the first switch to close, the DCDC converter transmits the current to the load module along the second end of the first switch and the third power supply circuit to supply power to the load module. A power supply mode is achieved in which a part of the power is provided by the solar panel and a part of the power is provided by the battery pack, avoiding the situation of only using the battery pack for power supply, reducing the power consumption of the battery pack, and being conducive to improving the endurance of the vehicle.

[0074] In some embodiments, see Figure 2 , the battery system also includes: a battery, a detection module, a second switch and a third switch;

[0075] The third switch is electrically connected to the fifth power supply circuit, and the storage battery is respectively connected to the first end of the second switch and the first end of the third switch, the second end of the second switch is connected to one end of the load module, and the second end of the third switch is connected to one end of the DCDC converter;

[0076] One end of the detection module is connected to the battery, and the other end is electrically connected to the DCDC converter;

[0077] A detection module is configured to collect the charge of the battery;

[0078] The DCDC converter is configured to transmit a second signal to the control end of the second switch in response to the charge of the battery being lower than the first threshold, and the second switch is disconnected under the driving of the second signal to cut off the fourth power supply circuit between the battery and the load module;

[0079] And, a first signal is transmitted to the control end of the third switch, and the third switch is closed under the driving of the first signal to turn on the fifth power supply circuit, so that the charging current is transmitted on the fifth power supply circuit.

[0080] It should be noted that the battery refers to a 12V lead-acid battery in a vehicle, which is a low-voltage battery and is mainly used to supply power to low-power loads in the vehicle;

[0081] The detection module refers to the battery sensor EBS in the vehicle system, which is mainly used to collect information such as the battery status SOC and send it to the DCDC converter;

[0082] The second switch and the third switch both refer to a relay, which is automatically closed or closed by receiving a signal transmitted by the DCDC converter;

[0083] The first threshold refers to the minimum charge level at which the battery needs to be recharged immediately;

[0084] The second signal is an electrical signal indicating that the second switch is turned off.

[0085] It should be noted that the battery is connected to the first end of the second switch through a power line to form a fourth power supply circuit, and is connected to the first end of the third switch through a power line to form a fifth power supply circuit; the second end of the second switch is electrically connected to the DCDC converter through a signal line, and the second end of the third switch is connected to the DCDC converter through a power line to connect the path between the battery and the DCDC converter.

[0086] By setting the above structure, when the charge of the battery is lower than the first threshold, the DCDC converter controls the third switch to close and the second switch to open, so as to prohibit current transmission in the fourth power supply circuit on the one hand, and on the other hand, the current of the solar panel and the current of the battery pack input into the DCDC converter are transmitted to the battery along the fifth power supply circuit to charge the battery; at the same time, the battery transmits current to the load module along the fourth power supply circuit to power the load module.

[0087] Whether charging the battery or supplying power to the load module, the power source is the solar panel and the battery pack, reducing the power consumption of the battery pack alone. In addition, by charging the battery in time, it can avoid excessive consumption of the battery pack, resulting in battery power loss, which helps to protect the storage performance of the battery.

[0088] In some embodiments, see Figure 2 , the DCDC converter is further configured to transmit a second signal to the control end of the third switch in response to the charge amount of the battery being higher than the second threshold, and the third switch is disconnected under the driving of the second signal to cut off the fifth power supply loop;

[0089] and transmitting a first signal to the second switch, whereby the second switch is closed under the driving of the first signal to conduct the fourth power supply loop;

[0090] When the fourth power supply circuit is turned on, the battery transmits current to the load module via the fourth power supply circuit.

[0091] It should be noted that the second threshold refers to the maximum charge of the battery in the charging state, that is, when the charge is reached, it means that the battery does not need to be charged further.

[0092] By setting the above structure, when the charge of the battery reaches the second threshold, the fifth power supply circuit is cut off, and the DCDC converter is prohibited from transmitting charging current to the battery along the fifth power supply circuit, so as to reduce the extra power consumption of the solar cell panel and the battery pack; at the same time, the fourth power supply circuit is turned on, so that the battery transmits current to the load module along the fourth power supply circuit and the second end of the second switch, so that the battery also shares part of the output current, further reducing the power consumption of the battery pack.

[0093] In some embodiments, see Figure 2 , when the vehicle is powered off, the current on the second power supply circuit disappears;

[0094] The DCDC converter is configured to transmit a first signal to a control terminal of the first switch in response to power-off of the vehicle, and to transmit a second signal to a control terminal of the second switch and a control terminal of the third switch;

[0095] The first switch is closed under the driving of the first signal to conduct the third power supply loop;

[0096] The second switch and the third switch are opened under the driving of the second signal to cut off the fourth power supply loop and the fifth power supply loop.

[0097] It should be noted that when the vehicle is powered off, the disappearance of the current on the second power supply circuit means that after the vehicle is powered off, the battery pack in the vehicle is turned off and the battery pack no longer continues to supply power.

[0098] By setting the above structure, after the vehicle is powered off, there is no current transmission in the second power supply circuit, and the electric energy stored in the solar panel is transmitted to the DCDC converter via the first power supply circuit. The DCDC converter controls the first switch to close, so as to transmit current to the load module via the third power supply circuit and the second end of the first switch, so as to maintain the normal operation of the load that continues to run after the vehicle is powered off. In addition, when the power is only supplied by the solar panel, the fourth power supply circuit and the fifth power supply circuit need to be cut off to prevent the power output by the solar panel from being transmitted to the battery via the DCDC converter, and the power in the battery from being transmitted to the load module, which is conducive to reducing the extra consumption of the power stored in the solar panel.

[0099] In some embodiments, see Figure 3 , the battery system also includes a controller;

[0100] The controller is integrated into the solar panel;

[0101] The DCDC converter transmits a first signal to the first switch in response to the power supply current of the controller being less than a current threshold, and transmits a first signal to the control terminal of the second switch;

[0102] The first switch is closed under the driving of the first signal to conduct the third power supply loop;

[0103] The second switch is closed under the driving of the first signal to conduct the fourth power supply loop.

[0104] It should be noted that the controller refers to a maximum power point tracking (MPPT) solar controller, which can detect the power generation voltage of the solar panel in real time and track the maximum voltage and current value (VI);

[0105] The current threshold refers to the minimum current value when the solar panel is delivering current.

[0106] By setting the above structure, when insufficient light occurs and the power supply current of the controller is less than the current threshold, it means that the power provided by the solar panel is insufficient to meet the needs of the load module. At this time, the DCDC converter controls the second switch to close, turns on the fourth power supply circuit, and enables the battery to transmit current to the load module along the fourth power supply circuit and the second end of the second switch, that is, the battery is used to share part of the power required by the load module. The power supply mode helps to maintain the normal operation of the load module.

[0107] In some embodiments, see Figure 3 , when the DCDC converter responds to the supply current of the controller being less than the current threshold, the DCDC converter responds to the charge of the battery being lower than the third threshold, transmitting a shutdown signal to the load module, transmitting a second signal to the second switch, and transmitting a first signal to the third switch;

[0108] The load module is powered off and put into sleep mode under the driving of the shutdown signal;

[0109] The second switch is opened under the driving of the second signal to cut off the fourth power supply circuit;

[0110] The third switch is closed under the driving of the first signal to conduct the fifth power supply loop;

[0111] The third threshold is smaller than the first threshold and smaller than the second threshold.

[0112] It should be noted that the third threshold refers to the minimum charge amount that prompts the battery module to be charged immediately when the battery supplies power to the load module in the case of insufficient light;

[0113] Power-off sleep may mean that the load module stops running.

[0114] By setting the above structure, when the light is insufficient continuously, the load module continues to operate, resulting in the charge of the battery being lower than the third threshold value. At this time, the load module needs to be turned off, and the second switch is controlled by the DCDC to be disconnected, so that the battery is prohibited from transmitting electricity to the load module along the fourth power supply circuit; at this time, the DCDC converter controls the third switch to be closed, and the electricity stored in the solar panel is first transmitted to the DCDC converter through the first power supply circuit. The DCDC converter transmits part of the electricity to the load module via the third power supply circuit and the second end of the first switch, and transmits the other part of the electricity to the battery via the fifth power supply circuit and the first end of the third switch, so as to charge the battery and avoid the situation of battery power shortage.

[0115] In some embodiments, when the sunlight is insufficient and the power output by the solar panel is used to charge the battery, the detection module detects and collects the charge of the battery, transmits a signal that the charge of the battery reaches the second threshold to the DCDC converter, and the DCDC converter controls the third switch to be disconnected to cut off the fifth power supply circuit, so that the DCDC converter no longer transmits part of the power to the battery, thereby prohibiting the battery from being charged;

[0116] At the same time, the DCDC converter controls the second switch to close to conduct the fourth power supply loop, so that the battery transmits current to the load module along the fourth power supply loop and the second end of the second switch.

[0117] In some embodiments, see Figure 3 , the DCDC converter transmits a first signal to the first switch in response to the power supply current of the controller being greater than the current threshold, and transmits the first signal to both the control end of the second switch and the control end of the third switch;

[0118] Wherein, the first switch is closed under the driving of the first signal to conduct the third power supply circuit;

[0119] The second switch is closed under the driving of the first signal to conduct the fourth power supply loop;

[0120] The third switch is closed under the driving of the first signal to conduct the fifth power supply loop.

[0121] By setting the above structure, if the light gradually becomes sufficient, the power supply current of the controller is greater than the current threshold, and the DCDC converter controls the third switch to close, and the DCDC converter transmits part of the current along the fifth power supply loop and the first end of the third switch to the battery to charge the battery; the DCDC converter transmits another part of the current along the third power supply loop and the second end of the first switch to the load module to power the load module.

[0122] In some embodiments, see Figure 3When the sunlight gradually becomes sufficient and the electricity stored in the solar panel is used to charge the battery, the detection module detects and collects the charge of the battery, and transmits a signal that the charge of the battery reaches the second threshold to the DCDC converter, and the DCDC converter controls the third switch to be disconnected to cut off the fifth power supply circuit, so that the DCDC converter no longer transmits part of the electricity to the battery.

[0123] In some embodiments, see Figure 4 , the battery system also includes an activation module;

[0124] One end of the activation module is connected to a sensor in the vehicle engine ignition device, and the other end is connected to a DCDC converter;

[0125] The activation module is configured to transmit a third signal to the DCDC converter in response to a start signal from the engine ignition device, and the DCDC converter is driven by the third signal to transmit the first signal to the first switch.

[0126] It should be noted that the activation module refers to a device for receiving a start or shut down signal of the vehicle engine ignition device, and transmitting the above signal to the DCDC converter;

[0127] The third signal is an electrical signal instructing the DCDC converter to transmit the first signal to the first switch.

[0128] By setting the above structure, after the vehicle engine ignition device is started, the start signal is transmitted to the activation module, the activation module transmits the corresponding third signal to the DCDC converter, and the DCDC converter transmits the first signal to the first switch to turn on the third power supply circuit, so that the current transmitted by the battery pack and the solar panel along the second power supply circuit and the first power supply circuit respectively is transmitted to the load module along the third power supply circuit to maintain the normal operation of the load module.

[0129] In some embodiments, see Figure 4 The activation module is also configured to transmit a fourth signal to the DCDC converter in response to a shutdown signal of the engine ignition device. Driven by the fourth signal, the DCDC converter turns on the connection circuit between the detection module and the battery so that the detection module collects the charge of the battery.

[0130] It should be noted that the fourth signal refers to an electrical signal indicating the connection circuit between the DCDC converter conduction detection module and the battery.

[0131] By setting the above structure, when the vehicle engine is turned off, that is, the vehicle is powered off, a shutdown signal is transmitted to the activation module, the activation module transmits the corresponding fourth signal to the DCDC converter, the DCDC converter controls the connection path between the detection module and the battery module, and the detection module is used to detect and collect the charge of the battery;

[0132] At the same time, the DCDC converter controls the first switch to be closed to turn on the third power supply loop, and the DCDC converter transmits current to the load module along the third power supply loop and the second end of the first switch.

[0133] If the charge amount of the battery collected by the detection module is lower than the first threshold value, the DCDC converter transmits a first signal to the control end of the third switch, and the third switch is closed in response to the first signal to turn on the fifth power supply circuit to charge the battery; if the charge amount of the battery collected by the detection module is higher than the second threshold value, the DCDC converter transmits a first signal to the control end of the second switch, so that the battery supplies power to the load module.

[0134] The present application provides a vehicle, which includes the battery system provided by the above embodiment. The power consumption of the battery pack or generator of the vehicle using this system is reduced, and its endurance is further improved.

[0135] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0136] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present application.

[0137] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0138] The battery system and vehicle provided by the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technicians in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A battery system, characterized in that: The battery system comprises: a battery pack, a solar panel, a voltage converter, a battery, a first switch and a load module; The voltage converter is respectively connected to the output end of the solar panel, the battery pack, the storage battery and the first end of the first switch, the second end of the first switch is connected to the load module, and the storage battery is connected to the load module; Wherein, the first power supply circuit between the solar cell panel and the voltage converter is in a normally conducting state, and the second power supply circuit between the battery pack and the voltage converter is in a normally conducting state; The voltage converter is configured to transmit a first signal to a control terminal of the first switch in response to power-on of the vehicle; The first switch is closed under the driving of the first signal, and the third power supply circuit between the voltage converter and the load module is turned on, so as to supply power to the load module through the voltage converter; Wherein, a charging current is transmitted on a fifth power supply circuit between the voltage converter and the battery.

2. The battery system according to claim 1, characterized in that: The battery system further comprises: A detection module, a second switch and a third switch; The third switch is electrically connected to the fifth power supply circuit, and the storage battery is respectively connected to a first end of the second switch and a first end of the third switch, a second end of the second switch is connected to one end of the load module, and a second end of the third switch is connected to one end of the voltage converter; One end of the detection module is connected to the battery, and the other end is electrically connected to the voltage converter; The detection module is configured to collect the charge of the battery; The voltage converter is configured to transmit a second signal to the control end of the second switch in response to the charge of the storage battery being lower than a first threshold, and the second switch is disconnected under the driving of the second signal to cut off a fourth power supply circuit between the storage battery and the load module; And, the first signal is transmitted to the control end of the third switch, and the third switch is closed under the driving of the first signal to turn on the fifth power supply circuit, so that the charging current is transmitted on the fifth power supply circuit.

3. The battery system according to claim 2, characterized in that: The voltage converter is further configured to transmit the second signal to the control end of the third switch in response to the charge amount of the battery being higher than the second threshold, and the third switch is opened under the driving of the second signal to cut off the fifth power supply circuit; and transmitting the first signal to the second switch, whereby the second switch is closed under the driving of the first signal to conduct the fourth power supply circuit; When the fourth power supply circuit is turned on, the storage battery transmits current to the load module via the fourth power supply circuit.

4. The battery system according to claim 2, characterized in that: When the vehicle is powered off, the current on the second power supply circuit disappears; The voltage converter is configured to transmit the first signal to the control end of the first switch in response to power-off of the vehicle, and transmit the second signal to the control end of the second switch and the control end of the third switch; The first switch is closed under the driving of the first signal to turn on the third power supply circuit; The second switch and the third switch are opened under the driving of the second signal to cut off the fourth power supply circuit and the fifth power supply circuit.

5. The battery system according to any one of claims 1 to 4, characterized in that: The battery system also includes a controller; The controller is integrated on the solar panel; In response to the power supply current of the controller being less than a current threshold, the voltage converter transmits the first signal to the first switch, and transmits the first signal to a control terminal of the second switch; The first switch is closed under the driving of the first signal to turn on the third power supply circuit; The second switch is driven by the first signal to close to conduct the fourth power supply loop.

6. The battery system according to claim 5, characterized in that: In response to the power supply current of the controller being less than a current threshold, the voltage converter transmits a shutdown signal to the load module, transmits a second signal to the second switch, and transmits the first signal to the third switch in response to the charge of the battery being lower than a third threshold, when the voltage converter responds that the power supply current of the controller is less than a current threshold; The load module is powered off and put into sleep mode under the driving of the shutdown signal; The second switch is opened under the driving of the second signal to cut off the fourth power supply circuit; The third switch is closed under the driving of the first signal to turn on the fifth power supply loop; The third threshold is smaller than the first threshold and smaller than the second threshold.

7. The battery system according to claim 6, characterized in that: In response to the power supply current of the controller being greater than the current threshold, the voltage converter transmits the first signal to the first switch and transmits the first signal to both the control terminal of the second switch and the control terminal of the third switch; Wherein, the first switch is closed under the driving of the first signal to conduct the third power supply circuit; The second switch is closed under the driving of the first signal to turn on the fourth power supply circuit; The third switch is closed under the driving of the first signal to turn on the fifth power supply loop.

8. The battery system according to claim 2, characterized in that: The battery system also includes an activation module; One end of the activation module is connected to a sensor in an ignition device of a vehicle engine, and the other end is connected to the voltage converter; The activation module is configured to transmit a third signal to the voltage converter in response to a start signal from the engine ignition device, and the voltage converter is driven by the third signal to transmit the first signal to the first switch.

9. The battery system according to claim 8, characterized in that: The activation module is also configured to transmit a fourth signal to the voltage converter in response to a shutdown signal of the engine ignition device. Driven by the fourth signal, the voltage converter turns on the connection circuit between the detection module and the battery so that the detection module collects the charge of the battery.

10. A vehicle, characterized in that: The vehicle comprises the battery system according to any one of claims 1-9.

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