CN218335364U

CN218335364U - Battery electric control system

Info

Publication number: CN218335364U
Application number: CN202221928433.XU
Authority: CN
Inventors: 卢海军; 李澎栋
Original assignee: Zhongshan Xiaowan Energy Technology Co ltd
Current assignee: Zhongshan Xiaowan Energy Technology Co ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2023-01-17
Anticipated expiration: 2032-07-13

Abstract

The utility model discloses a battery electrical system, include: a first battery module; a second battery module; the switching module comprises a charging switching unit and a power supply switching unit, wherein the charging switching unit is provided with a charging input end, a first charging output end and a second charging output end, the power supply switching unit is provided with a first power supply input end, a second power supply input end and a power supply output end, the switching module at least comprises a first working state and a second working state, the charging input end is electrically connected with the second charging output end and the first power supply input end is electrically connected with the power supply output end in the first working state, and the charging input end is electrically connected with the first charging output end and the second power supply input end is electrically connected with the second output end in the second working state. The utility model discloses can prolong battery module's life, reinforcing electric automobile's duration.

Description

Battery electric control system

Technical Field

The utility model relates to a battery field, in particular to battery electrical system.

Background

Nowadays, the battery electric control system of the existing automobile generally comprises a battery module and a vehicle power module, wherein the battery module is electrically connected with the vehicle power module to supply power for the vehicle power module. In addition, the battery module can be electrically connected with an external power supply to charge. When the battery module is charged, although the vehicle does not run, some vehicle owners may choose to leave the vehicle for continuous use of the vehicle-mounted equipment, such as continuous use of an air conditioner in the vehicle or continuous use of vehicle-mounted music, so that the battery module is in a state of being charged and discharged, which may damage the battery module, shorten the service life of the battery module, and further deteriorate the cruising ability of the electric vehicle.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of current technical problem, for this reason, the utility model provides a battery electrical system can prolong battery module's life, reinforcing electric automobile's duration.

According to the utility model discloses a battery electrical system, include: a first battery module; a second battery module; the switching module comprises a charging switching unit and a power supply switching unit, wherein the charging switching unit is provided with a charging input end, a first charging output end and a second charging output end, the charging input end can be electrically connected with an external power supply, the first charging output end is electrically connected with a first battery module, the second charging output end is electrically connected with a second battery module, the power supply switching unit is provided with a first power supply input end, a second power supply input end and a power supply output end, the power supply output end is electrically connected with a vehicle power module, the first power supply input end is electrically connected with the first battery module, the second power supply input end is electrically connected with the second battery module, the switching module at least comprises a first working state and a second working state, and the charging input end is electrically connected with the second charging output end and the first power supply input end is electrically connected with the power supply output end, and the charging input end is electrically connected with the first charging output end and the second power supply input end is electrically connected with the power supply output end.

According to the utility model discloses a battery electrical system has following beneficial effect at least:

the utility model discloses battery electrical system, when the second battery module needs to charge, the user can switch the switching module to first operating condition, external power source charges to the second battery module this moment, first battery module can be for vehicle power consumption module power supply, provide the required electric power of vehicle power consumption module work, and when first battery module needs to charge, the user can switch the switching module to second operating condition, external power source charges to first battery module this moment, second battery module can be for vehicle power consumption module power supply, provide the required electric power of vehicle power consumption module work, avoid appearing first battery module or second battery module and appear the circumstances of discharging while charging, compare in prior art, the utility model discloses can avoid battery module impaired, prolong battery module's life, reinforcing electric automobile's duration, satisfy the demand that the user used on-vehicle equipment when charging simultaneously.

According to some embodiments of the utility model, the switching unit that charges includes charging socket, first single-pole double-throw switch SW1, first switch K1 and second switch K2, charging socket can with external power source electric connection, charging socket's one end with first single-pole double-throw switch SW 1's movable end electric connection, first single-pole double-throw switch SW 1's first immovable end with first battery module's one end electric connection, first single-pole double-throw switch SW 1's second immovable end with second battery module's one end electric connection, charging socket's the other end respectively with first switch K1's one end and second switch K2's one end electric connection, first switch K1's the other end with first battery module's other end electric connection, second switch K2's the other end with second battery module's other end electric connection, under first operating condition, first single-pole double-throw switch SW 1's movable end with first single-pole double-throw switch SW 1's other end electric connection, second single-pole double-throw switch SW 1's closed second switch SW1, second single-pole double-throw switch SW 1's closed second switch SW2 second switch moves the second switch off under the first operating condition.

According to some embodiments of the utility model, the switching unit that charges includes charging socket, first switch K1, second switch K2, third switch K3 and fourth switch K4, charging socket can with external power source electric connection, charging socket's one end respectively with third switch K3's one end and fourth switch K4's one end electric connection, third switch K3's the other end with first battery module's one end electric connection, fourth switch K4's the other end with second battery module's one end electric connection, charging socket's the other end respectively with first switch K1's one end and second switch K2's one end electric connection, first switch K1's the other end with first battery module's other end electric connection, second switch K2's the other end with second battery module's other end electric connection, under first operating condition, first switch K1 with third switch K3 disconnection, second switch K2 with fourth switch K4 is closed, under second operating condition first switch K3 is closed second switch K3 and fourth switch K4 disconnection.

According to some embodiments of the present invention, the power supply switching unit includes second single-pole double-throw switch SW2, fifth switch K5 and sixth switch K6, the movable end of second single-pole double-throw switch SW2 with the one end electric connection of vehicle power module, the first immovable end of second single-pole double-throw switch SW2 with the one end electric connection of first battery module, the second immovable end of second single-pole double-throw switch SW2 with the one end electric connection of second battery module, the other end of vehicle power module respectively with the one end of fifth switch K5 and the one end electric connection of sixth switch K6, the other end of fifth switch K5 with the other end electric connection of first battery module, the other end of sixth switch K6 with the other end electric connection of second battery module, under the first operating state, the movable end of second single-pole double-throw switch SW2 with the first immovable end electric connection of second single-pole double-throw switch SW2, the second single-pole double-throw switch SW 5 is closed, the second single-pole double-throw switch SW 5 is disconnected with the second switch SW 5, the second single-pole double-throw switch SW 5 is disconnected under the second operating state.

According to some embodiments of the present invention, the power supply switching unit includes a fifth switch K5, a sixth switch K6, a seventh switch K7 and an eighth switch K8, one end of the vehicle power module respectively with one end of the seventh switch K7 and one end electric connection of the eighth switch K8, the other end of the seventh switch K7 with one end electric connection of the first battery module, the other end of the eighth switch K8 with one end electric connection of the second battery module, the other end of the vehicle power module respectively with one end of the fifth switch K5 and one end electric connection of the sixth switch K6, the other end of the fifth switch K5 with the other end electric connection of the first battery module, the other end of the sixth switch K6 with the other end electric connection of the second battery module, in a first working state, the fifth switch K5 and the seventh switch K7 are closed, the sixth switch K6 and the eighth switch K8 are open, in a second working state, the fifth switch K5 and the seventh switch K7 are open, the seventh switch K6 and the eighth switch K8 is closed.

According to some embodiments of the present invention, the battery capacity of the first battery module is greater than the battery capacity of the second battery module.

According to some embodiments of the invention, the first battery module and the second battery module are all nickel metal hydride batteries.

According to some embodiments of the utility model, still include control module and electric quantity detection module, electric quantity detection module respectively with first battery module and the second battery module is connected, control module respectively with electric quantity detection module charge switching unit and power supply switching unit electric connection, so that control module can be according to electric quantity detection module's detection signal control charge switching unit and power supply switching unit work.

According to some embodiments of the utility model, still include with control module electric connection's warning module.

According to some embodiments of the utility model, still include with control module electric connection's vehicle motion detection module, control module can be based on vehicle motion detection module's detected signal will charge the switching unit and power supply switching unit switches to first operating condition.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a frame diagram of the present invention;

fig. 2 is a schematic circuit diagram of the switching module in a first operating state according to some embodiments of the present invention;

fig. 3 is a schematic circuit diagram of the switching module in a second operating state according to some embodiments of the present invention;

fig. 4 is a schematic circuit diagram of the switching module in the first operating state according to another embodiment of the present invention;

fig. 5 is a schematic circuit diagram of another embodiment of the present invention when the switching module is in the second operating state;

fig. 6 is another frame diagram of the present invention.

Reference numerals:

the vehicle-mounted power supply system comprises a first battery module 1, a second battery module 2, a charging switching unit 3, a charging socket 31, a power supply switching unit 4, a vehicle electricity utilization module 5, a control module 6, an electric quantity detection module 7, a reminding module 8 and a vehicle motion detection module 9.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the positional or orientational descriptions referred to, for example, the positional or orientational relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the positional or orientational relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

According to the utility model discloses a battery electrical system, as shown in fig. 1-5, include: a first battery module 1; a second battery module 2; the switching module comprises a charging switching unit 3 and a power supply switching unit 4, wherein the charging switching unit 3 is provided with a charging input end, a first charging output end and a second charging output end, the charging input end can be electrically connected with an external power supply, the first charging output end is electrically connected with a first battery module 1, the second charging output end is electrically connected with a second battery module 2, the power supply switching unit 4 is provided with a first power supply input end, a second power supply input end and a power supply output end, the power supply output end is electrically connected with a vehicle power utilization module 5, the first power supply input end is electrically connected with the first battery module 1, the second power supply input end is electrically connected with the second battery module 2, the switching module at least comprises a first working state and a second working state, the charging input end is electrically connected with the second charging output end and the first power supply input end is electrically connected with the power supply output end in the first working state, and the charging input end is electrically connected with the first charging output end and the second power supply input end is electrically connected with the power supply output end in the second working state.

The utility model discloses battery electrical system, when second battery module 2 needs to charge, the user can switch the module to first operating condition, external power source charges to second battery module 2 this moment, first battery module 1 can be for vehicle power module 5 power supply, provide the required electric power of vehicle power module 5 work, and when first battery module 1 needs to charge, the user can switch the module to second operating condition, external power source charges first battery module 1 this moment, second battery module 2 can be for vehicle power module 5 power supply, provide the required electric power of vehicle power module 5 work, avoid appearing first battery module 1 or second battery module 2 the circumstances of discharging while charging, compare in prior art, the utility model discloses can avoid battery module impaired, prolong battery module's life, reinforcing electric automobile's duration, satisfy the user and use mobile unit's demand when charging simultaneously.

In some embodiments of the present invention, the vehicle power module 5 includes an air conditioning assembly or a speaker assembly.

Specifically, the air conditioning component can bring comparatively comfortable in-car temperature for the user, and the speaker component can play news information or music, and the user of being convenient for obtains information or pleasure.

In addition, the vehicle electric module 5 may further include a motor assembly capable of driving the vehicle to run by using the electric energy provided by the first battery module 1 or the second battery module 2.

In some embodiments of the present invention, as shown in fig. 2 and fig. 3, the charging switching unit 3 includes a charging socket 31, a first single-pole double-throw switch SW1, a first switch K1 and a second switch K2, the charging socket 31 can be electrically connected to an external power source, one end of the charging socket 31 is electrically connected to a moving end of the first single-pole double-throw switch SW1, a first stationary end of the first single-pole double-throw switch SW1 is electrically connected to one end of the first battery module 1, a second stationary end of the first single-pole double-throw switch SW1 is electrically connected to one end of the second battery module 2, the other end of the charging socket 31 is electrically connected to one end of the first switch K1 and one end of the second switch K2, the other end of the first switch K1 is electrically connected to the other end of the first battery module 1, the other end of the second switch K2 is electrically connected to the other end of the second battery module 2, in the first working state, the moving end of the first single-pole double-throw switch SW1 is electrically connected to the second switch K1, the second switch K2 is electrically connected to the second switch SW1, the second switch SW1 is disconnected from the second switch SW1, the second switch SW1 is disconnected in the first working state, the second switch SW1 is disconnected from the second switch SW2, the second switch SW 1.

Specifically, when a user needs to charge the second battery module 2, the switching module may be switched to the first working state, at this time, the moving end of the first single-pole double-throw switch SW1 is electrically connected to the second stationary end of the first single-pole double-throw switch SW1, the first switch K1 is turned off, the second switch K2 is turned on, and an external power source connected to the charging jack 31 can charge the second battery module 2; when a user needs to charge the first battery module 1, the switching module can be switched to the second working state, at this time, the movable end of the first single-pole double-throw switch SW1 is electrically connected with the first stationary end of the first single-pole double-throw switch SW1, the first switch K1 is closed, the second switch K2 is disconnected, and an external power supply connected to the charging socket 31 can charge the first battery module 2.

In some embodiments of the present invention, as shown in fig. 4 and 5, the charging switching unit 3 includes a charging socket 31, a first switch K1, a second switch K2, a third switch K3 and a fourth switch K4, the charging socket 31 can be electrically connected to an external power source, one end of the charging socket 31 is electrically connected to one end of the third switch K3 and one end of the fourth switch K4, the other end of the third switch K3 is electrically connected to one end of the first battery module 1, the other end of the fourth switch K4 is electrically connected to one end of the second battery module 2, the other end of the charging socket 31 is electrically connected to one end of the first switch K1 and one end of the second switch K2, the other end of the first switch K1 is electrically connected to the other end of the first battery module 1, the other end of the second switch K2 is electrically connected to the other end of the second battery module 2, in the first working state, the first switch K1 and the second switch K3 are disconnected, the second switch K2 and the fourth switch K4 are closed, in the second working state, the first switch K1 and the fourth switch K2 are closed, the fourth switch K2 and the fourth switch K4 are disconnected.

Specifically, when a user needs to charge the second battery module 2, the switching module may be switched to the first working state, at this time, the first switch K1 and the third switch K3 are turned off, the second switch K2 and the fourth switch K4 are turned on, and the external power source connected to the charging interface 31 may charge the second battery module 2; when a user needs to charge the first battery module 1, the switching module may be switched to the second working state, at this time, the first switch K1 and the third switch K3 are closed, the second switch K2 and the fourth switch K4 are opened, and the external power source connected to the charging interface 31 may charge the second battery module 2.

In some embodiments of the present invention, as shown in fig. 2 and 3, the power supply switching unit 4 includes a second single-pole double-throw switch SW2, a fifth switch K5 and a sixth switch K6, a movable end of the second single-pole double-throw switch SW2 is electrically connected to one end of the vehicle electric module 5, a first fixed end of the second single-pole double-throw switch SW2 is electrically connected to one end of the first battery module 1, a second fixed end of the second single-pole double-throw switch SW2 is electrically connected to one end of the second battery module 2, the other end of the vehicle electric module 5 is electrically connected to one end of the fifth switch K5 and one end of the sixth switch K6, the other end of the fifth switch K5 is electrically connected to the other end of the first battery module 1, the other end of the sixth switch K6 is electrically connected to the other end of the second battery module 2, in the first working state, the movable end of the second single-pole double-throw switch SW2 is electrically connected to the first fixed end of the second battery module 2, the second single-pole double-throw switch SW 5 is electrically connected to the second switch K6, the second single-pole double-throw switch SW2 is disconnected from the second switch SW2, the second single-pole double-throw switch SW 5 is disconnected from the second single-pole double-throw switch SW2, the second single-pole double-throw switch SW 5 is disconnected from the second switch SW 5, and the second switch SW2 is disconnected in the first working state.

Specifically, when a user charges the first battery module 1, the switching module may be switched to the second working state, at this time, the moving end of the second single-pole double-throw switch SW2 is electrically connected to the second stationary end of the second single-pole double-throw switch SW2, the fifth switch K5 is opened, the sixth switch K6 is closed, and the second battery module 2 supplies power to the vehicle power module 5; when a user charges the second battery module 2, the switching module can be switched to the first working state, at this time, the movable end of the second single-pole double-throw switch SW2 is electrically connected with the first stationary end of the second single-pole double-throw switch SW2, the fifth switch K5 is closed, the sixth switch K6 is opened, and the first battery module 1 supplies power to the vehicle power module 5. The arrangement of the fifth switch K5 and the sixth switch K6 can protect the whole electric control system. Therefore, the situation that the battery module discharges while charging can be avoided, the service life of the battery module is prolonged, the cruising ability of the electric automobile is enhanced, and the requirement of a user for using the vehicle-mounted equipment when the battery module is charged is met.

In some embodiments of the present invention, as shown in fig. 4 and 5, the power supply switching unit 4 includes a fifth switch K5, a sixth switch K6, a seventh switch K7 and an eighth switch K8, one end of the vehicle power module 5 is electrically connected to one end of the seventh switch K7 and one end of the eighth switch K8, the other end of the seventh switch K7 is electrically connected to one end of the first battery module 1, the other end of the eighth switch K8 is electrically connected to one end of the second battery module 2, the other end of the vehicle power module 5 is electrically connected to one end of the fifth switch K5 and one end of the sixth switch K6, the other end of the fifth switch K5 is electrically connected to the other end of the first battery module 1, the other end of the sixth switch K6 is electrically connected to the other end of the second battery module 2, in the first working state, the fifth switch K5 and the seventh switch K7 are closed, the sixth switch K6 and the eighth switch K8 are open, in the second working state, the sixth switch K5 and the eighth switch K8 are open.

Specifically, when the user charges the first battery module 1, the switching module may be switched to the second operating state, at which time the fifth switch K5 and the seventh switch K7 are opened and the sixth switch K6 and the eighth switch K8 are closed, and the second battery module 2 supplies power to the vehicle power module 5; when the user charges the second battery module 2, the switching module may be switched to the first operating state, at this time, the fifth switch K5 and the seventh switch K7 are closed, and the sixth switch K6 and the eighth switch K8 are opened, so that the first battery module 1 supplies power to the vehicle power module 5. The arrangement of the fifth switch K5 and the sixth switch K6 can protect the whole electric control system. Therefore, the situation that the battery module is charged and discharged at the same time when being charged can be avoided, the service life of the battery module is prolonged, the cruising ability of the electric automobile is enhanced, and the requirement that a user uses the vehicle-mounted equipment when the battery module is charged is met.

In addition, in the embodiment in which the power supply switching unit 4 includes the fifth switch K5, the sixth switch K6, the seventh switch K7, and the eighth switch K8, not only the first battery module 1 but also the second battery module 2 can supply power to the vehicle electric module 5. For example, when the automobile is running normally, the user may close the fifth switch K5 and the seventh switch K7 and open the sixth switch K6 and the eighth switch K8, and at this time, only the first battery module 1 supplies power to the vehicle power module 5; the user can also close the fifth switch K5, the sixth switch K6, the seventh switch K7 and the eighth switch K8 at the same time, and at this time, the first battery module 1 is connected in parallel with the second battery module 2 to jointly supply power to the vehicle power module 5 and the vehicle power module 5.

In some embodiments of the present invention, the battery capacity of the first battery module 1 is greater than the battery capacity of the second battery module 2.

Specifically, the configuration is such that the first battery module 1 is used as a main power source, the second battery module 2 is used as a backup power source, and the second battery module 2 generally supplies power to the vehicle power module 5 only for a short time when the first battery module 1 is charged, so the battery capacity of the second battery module 2 does not need to be too large. The capacity of the first battery module 1 is configured to be larger than the capacity of the second battery module 2, so that on one hand, sufficient cruising ability can be provided for the electric vehicle, and meanwhile, excessive electric energy in the second battery module 2 is prevented from being idle and unused when the vehicle runs. In some embodiments, the battery capacity of the first battery module 1 is 4 times that of the second battery module 2, so that the configuration can well ensure the power supply capacity of the first battery module 1, and avoid the situation that the second battery module 2 is idle and has excessive electric energy unused when the automobile runs.

In some embodiments of the present invention, the first battery module 1 and the second battery module 2 are both nickel metal hydride batteries.

Specifically, the nickel-metal hydride battery has the advantages of good power performance, good low-temperature performance, no pollution and the like, and is suitable for electric automobiles.

Of course, in some embodiments, the first battery module 1 and the second battery module 2 may also adopt other types of batteries, such as nickel-cadmium batteries, lithium batteries, and the like.

In some embodiments of the present invention, as shown in fig. 6, the battery pack further includes a control module 6 and a power detection module 7, the power detection module 7 is respectively connected to the first battery module 1 and the second battery module 2, and the control module 6 is respectively electrically connected to the power detection module 7, the charging switching unit 3 and the power supply switching unit 4, so that the control module 6 can control the charging switching unit 3 and the power supply switching unit 4 to operate according to the detection signal of the power detection module 7.

Specifically, during charging, the electric quantity detection module 7 can detect the electric quantities of the first battery module 1 and the second battery module 2, and the control module 6 adjusts the operating states of the charging switching unit 3 and the power supply switching unit 4 according to the detection signals. For example, in order to charge the first battery module 1, the user switches the switching module (the charging switching unit 3 and the power supply switching unit 4) to the second working state, at this time, the second battery module 2 supplies power to the vehicle power module 5, and when the first battery module 1 is fully charged, the control module 6 acquires the information through the detection signal, and then automatically controls the charging switching unit 3 and the power supply switching unit 4 to be switched to the first working state, at this time, the first battery module 1 supplies power to the vehicle power module 5, and the second battery module 2 is charged, so that the user does not need to manually adjust the external power supply and the charging jack 31 again, which is convenient. The control module 6 may include a programmable logic controller or may include a micro-processing unit. The power detection module 7 may use conventional elements in the art, such as a TLE4997 hall sensor.

In some embodiments of the present invention, as shown in fig. 6, the device further includes a reminding module 8 electrically connected to the control module 6.

Specifically, the reminding module 8 can send reminding information to the user when the battery module is fully charged, and the reminding module 8 can be an indicating lamp set or an on-board loudspeaker assembly of an automobile.

In some embodiments of the present invention, as shown in fig. 6, the vehicle motion detection module 9 electrically connected to the control module 6 is further included, and the control module 6 can switch the charging switching unit 3 and the power supply switching unit 4 to the first operating state according to the detection signal of the vehicle motion detection module 9.

Specifically, when the vehicle is running, the vehicle motion detection module 9 transmits a detection signal to the control module 6, and the control module 6 can switch the charging switching unit 3 and the power supply switching unit 4 to the first working state according to the detection signal of the vehicle motion detection module 9, which is equivalent to that the first battery module 1 is fixedly used for supplying power when the vehicle is running, so that the probability of wrong switching of the battery modules for supplying power in the vehicle is reduced. The vehicle motion detection module 9 may be a gyroscope or a speed sensor. Wherein, the gyroscope and the speed sensor can adopt the conventional components in the prior art.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery electrical control system, comprising:

a first battery module (1);

a second battery module (2);

the switching module comprises a charging switching unit (3) and a power supply switching unit (4), wherein the charging switching unit (3) is provided with a charging input end, a first charging output end and a second charging output end, the charging input end can be electrically connected with an external power supply, the first charging output end is electrically connected with a first battery module (1), the second charging output end is electrically connected with a second battery module (2), the power supply switching unit (4) is provided with a first power supply input end, a second power supply input end and a power supply output end, the power supply output end is electrically connected with a vehicle power module (5), the first power supply input end is electrically connected with the first battery module (1), the second power supply input end is electrically connected with the second battery module (2), the switching module at least comprises a first working state and a second working state, and in the first working state, the charging input end is electrically connected with the second charging output end and the first power supply input end is electrically connected with the power supply output end, and in the second working state, the charging input end is electrically connected with the first charging output end and the second power supply output end is electrically connected with the second power supply output end.

2. An electric control system for a battery according to claim 1, wherein: the charging switching unit (3) comprises a charging socket (31), a first single-pole double-throw switch SW1, a first switch K1 and a second switch K2, the charging socket (31) can be electrically connected with an external power supply, one end of the charging socket (31) is electrically connected with a moving end of the first single-pole double-throw switch SW1, a first fixed end of the first single-pole double-throw switch SW1 is electrically connected with one end of the first battery module (1), a second fixed end of the first single-pole double-throw switch SW1 is electrically connected with one end of the second battery module (2), the other end of the charging socket (31) is electrically connected with one end of the first switch K1 and one end of the second switch K2, the other end of the first switch K1 is electrically connected with the other end of the first battery module (1), the other end of the second switch K2 is electrically connected with the other end of the second battery module (2), and the first switch SW1 is electrically connected with the second switch SW1, the second switch SW1 is electrically connected with the second switch K1, the second switch SW1 is disconnected, and the second switch SW1 is electrically connected with the second switch.

3. An electric control system for a battery according to claim 1, wherein: charging switching unit (3) including charging socket (31), first switch K1, second switch K2, third switch K3 and fourth switch K4, charging socket (31) can with external power source electric connection, charging socket (31) one end respectively with third switch K3's one end and fourth switch K4's one end electric connection, third switch K3's the other end with first battery module (1)'s one end electric connection, fourth switch K4's the other end with second battery module (2)'s one end electric connection, charging socket (31) the other end respectively with first switch K1's one end and second switch K2's one end electric connection, first switch K1's the other end with first battery module (1)'s the other end electric connection, second switch K2's the other end with second battery module (2)'s the other end electric connection, under first operating condition, first switch K1 and second switch K3 and the disconnection of second switch K2 and fourth switch K4, second switch K3 and fourth switch K4 and the disconnection under the second operating condition.

4. An electric control system for a battery according to claim 1, wherein: the power supply switching unit (4) includes a second single-pole double-throw switch SW2, a fifth switch K5 and a sixth switch K6, a moving end of the second single-pole double-throw switch SW2 is electrically connected with one end of the vehicle electric module (5), a first fixed end of the second single-pole double-throw switch SW2 is electrically connected with one end of the first battery module (1), a second fixed end of the second single-pole double-throw switch SW2 is electrically connected with one end of the second battery module (2), the other end of the vehicle electric module (5) is electrically connected with one end of the fifth switch K5 and one end of the sixth switch K6, the other end of the fifth switch K5 is electrically connected with the other end of the first battery module (1), the other end of the sixth switch K6 is electrically connected with the other end of the second battery module (2), and in a first working state, the moving end of the second single-pole double-throw switch SW2 is electrically connected with the second switch SW2, the second single-pole double-throw switch SW 5 is disconnected with the second switch K5, and the second single-pole double-throw switch SW 5 is disconnected in a second working state.

5. An electric control system for a battery according to claim 1, wherein: the power supply switching unit (4) comprises a fifth switch K5, a sixth switch K6, a seventh switch K7 and an eighth switch K8, one end of the vehicle power module (5) is respectively electrically connected with one end of the seventh switch K7 and one end of the eighth switch K8, the other end of the seventh switch K7 is electrically connected with one end of the first battery module (1), the other end of the eighth switch K8 is electrically connected with one end of the second battery module (2), the other end of the vehicle power module (5) is respectively electrically connected with one end of the fifth switch K5 and one end of the sixth switch K6, the other end of the fifth switch K5 is electrically connected with the other end of the first battery module (1), the other end of the sixth switch K6 is electrically connected with the other end of the second battery module (2), and the fifth switch K5 and the seventh switch K7 are closed, the sixth switch K6 and the eighth switch K8 are opened and closed under the seventh switch K5 and the seventh switch K8.

6. An electric control system for a battery according to claim 1, wherein: the battery capacity of the first battery module (1) is greater than the battery capacity of the second battery module (2).

7. An electric control system for a battery according to claim 1, wherein: the first battery module (1) and the second battery module (2) are both nickel-metal hydride batteries.

8. An electric control system for a battery according to claim 1, wherein: the battery charging system is characterized by further comprising a control module (6) and an electric quantity detection module (7), wherein the electric quantity detection module (7) is respectively connected with the first battery module (1) and the second battery module (2), and the control module (6) is respectively connected with the electric quantity detection module (7), the charging switching unit (3) and the power supply switching unit (4) in an electric connection mode, so that the control module (6) can control the charging switching unit (3) and the power supply switching unit (4) to work according to a detection signal of the electric quantity detection module (7).

9. An electric control system for a battery according to claim 8, wherein: the intelligent alarm device also comprises a reminding module (8) electrically connected with the control module (6).

10. An electric control system for a battery according to claim 8, wherein: the vehicle-mounted power supply switching device is characterized by further comprising a vehicle motion detection module (9) electrically connected with the control module (6), wherein the control module (6) can switch the charging switching unit (3) and the power supply switching unit (4) to a first working state according to a detection signal of the vehicle motion detection module (9).