CN108023408A - A kind of luggage case and its method for managing power supply, power management module - Google Patents

Abstract

The invention discloses a suitcase. The suitcase includes a suitcase body, a first power supply installed on the suitcase body, a second power supply, a power management module, and an electrical appliance. The first power supply, the second power supply, and the electrical appliance are all electrically connected to the power management module. The suitcase body is detachably connected. The first power supply supplies power to electrical appliances when installed in the suitcase body; the second power supply supplies power to electrical appliances after the first power supply is removed from the suitcase body; the power management module judges whether the first power supply is installed in the luggage The box body, and control the first power supply or the second power supply to supply power to the electrical appliances according to the judgment result. The invention also discloses a luggage power management method and a power management module. The present invention removes the first power supply with excellent battery characteristics but low safety from the luggage when the suitcase needs to be checked, and uses the second power supply to supply power to the electrical appliances, so as to ensure that the suitcase can be checked normally when using a power supply that does not meet the check-in standard And realize relevant functions in the process of consignment.

Description

A luggage case, its power management method, and power management module

technical field

The invention relates to the field of safe flight, in particular to a suitcase, a power management method thereof, and a power management module.

Background technique

Suitcase is almost a must-have item when people travel long distances. With the development of science and technology, intelligent luggage is widely used. Existing smart luggage can realize functions such as electronic weight, electronic lock, positioning/tracking, anti-theft, etc., but the realization of the above functions mostly requires a power supply.

In current luggage, lithium batteries are suitable for daily use of luggage due to their excellent power characteristics such as high energy density, high and stable discharge voltage, and low self-discharge rate, so as to ensure the stable realization of various functions of the luggage. Present suitcases generally fix the power supply inside the box body, and the user cannot disassemble the power supply. Since the suitcase with power supply will be strictly restricted by aviation safety standards in actual use, if a low-safety power supply such as a lithium battery is used, the user's suitcase will not be able to be checked normally, which greatly limits the use of smart suitcases. use.

The above content is only used to assist in understanding the technical solution of the present invention, and does not mean that the above content is admitted as prior art.

Contents of the invention

The main purpose of the present invention is to provide a suitcase, aiming to ensure that the suitcase can be checked normally while ensuring the function of the suitcase is realized.

In order to achieve the above object, the present invention provides a suitcase, which includes a suitcase body and a first power supply, a second power supply, a power management module and an electrical appliance installed on the suitcase body, the first power supply . Both the second power supply and the electrical load are electrically connected to the power management module, and the first power supply is detachably connected to the trunk body, wherein:

The first power supply is used to supply power to the electrical appliance when installed on the trunk body;

The second power supply is used for supplying power to the electrical appliance after the first power supply is disassembled from the trunk body;

The power management module is used to judge whether the first power supply is installed on the trunk body, and control the first power supply or the second power supply to supply power to the electrical appliance according to the judgment result.

Optionally, the power management module is provided with a first detection unit, the first detection unit is used to detect the connection status of the first power supply, and the power management module judges the connection status of the first power supply according to the connection status of the first power supply Whether the first power supply is installed on the trunk body.

Optionally, the power management module is further provided with a second detection unit, the second detection unit is used to detect the charging states of the first power supply and the second power supply.

Optionally, the power management module is further provided with a third detection unit, and the third detection unit is used for detecting the electric quantities of the first power supply and the second power supply.

In addition, in order to achieve the above object, the present invention also provides a luggage power management method, based on the suitcase described in any one of the above, the luggage power management method includes the following steps:

Detecting the connection state of the first power supply;

judging whether the first power supply is installed on the trunk body according to the connection state of the first power supply;

If so, then controlling the first power supply to supply power to electrical appliances;

If not, control the second power supply to supply power to the electric appliance.

Optionally, the luggage power management method further includes:

When the first power supply is installed on the trunk body, detecting the charging states of the first power supply and the second power supply;

judging whether there is external power input to the first power supply or the second power supply according to the charging states of the first power supply and the second power supply;

If so, controlling the external electric energy to simultaneously charge the first power source and the second power source.

Optionally, after the step of judging whether there is external power input to the first power supply or the second power supply according to the charging states of the first power supply and the second power supply, the step further includes:

If not, controlling the first power supply to charge the second power supply to a set electric quantity.

Optionally, the luggage power management method further includes:

When the first power supply is installed on the trunk body, detecting the electric quantity of the first power supply;

When the power of the first power source is lower than a first preset value, the first power source stops charging the second power source. Optionally, the luggage power management method further includes:

When the power of the first power supply is lower than a second preset value or the power of the second power supply is lower than a third preset value, a prompt message is sent to remind the user to charge.

In addition, in order to achieve the above object, the present invention also provides a power management module, the power management module includes: a memory, a processor, and a computer program stored in the memory and operable on the processor, the When the computer program is executed by the processor, the luggage power management method described in any one of the above items is realized.

A suitcase proposed by an embodiment of the present invention is provided with a first power supply and a second power supply electrically connected to the power management module, wherein the first power supply is detachably connected to the suitcase body and the power management module, and the first power supply can be used Lithium batteries have excellent battery characteristics such as high energy density, high and stable discharge voltage, and low self-discharge rate, but low safety power sources. When the first power source is installed on the trunk body, the power management module controls the first power source to be Electric power supply is used to ensure the daily stable use of the suitcase; the second power supply can use a power supply with higher safety and allows the aircraft to be checked or checked. When the suitcase needs to be checked, the first power supply can be connected from the suitcase body When it is disassembled, the power management module controls the second power supply to supply power to electrical appliances, so as to ensure that the suitcase can be checked normally when it uses a lithium battery or other power supply that cannot be checked in, and at the same time, relevant functions can be realized during the checking process.

Description of drawings

Fig. 1 is a schematic diagram of the device structure of the hardware operating environment involved in the luggage case embodiment of the present invention;

Fig. 2 is a specific structural schematic diagram of the luggage case embodiment of the present invention.

Fig. 3 is a schematic flow chart of the first embodiment of the luggage power management method of the present invention;

Fig. 4 is a second schematic flowchart of the embodiment of the luggage power management method of the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The invention provides a suitcase.

In this embodiment, as shown in FIG. 1 , the suitcase includes a suitcase body 1 and a first power supply 100 , a second power supply 200 , a power management module 400 and an electrical appliance 300 installed on the suitcase body 1 . The first power source 100 , the second power source 200 and the electrical appliance 300 are all electrically connected to the power management module 400 , and the first power source 100 is detachably connected to the trunk body 1 .

The first power supply 100 is used to supply power to the electrical consumer 300 when installed on the trunk body 1 ;

The second power supply 200 is used for supplying power to the electrical consumer 300 after the first power supply 100 is disassembled from the trunk body 1 ;

The power management module 400 is used to judge whether the first power source 100 is installed on the luggage body 1, and control the first power source 100 or the second power source 200 to serve as the electrical appliance 300 according to the judgment result. powered by.

Wherein, the first power source 100 can specifically be a power source that does not meet the requirements for safe consignment, such as lithium ion or lithium polymer batteries, etc., which have excellent battery characteristics such as high energy density, high and stable discharge voltage, and low self-discharge rate, but the flight safety is relatively low. Low battery; the second power supply 200 can specifically be a power supply that meets the requirements of safe consignment, such as a nickel-metal hydride battery or a nickel-iron battery with low energy density or low voltage, and a battery with high safety. The first power source 100 and the second power source 200 may specifically be rechargeable batteries. Preferably, both the first power source 100 and the second power source 200 are rechargeable batteries, which saves users from frequently replacing power sources and is environmentally friendly. In addition, the first power source 100 may also be a power source that meets the requirements for safe consignment.

The first power supply 100 , the second power supply 200 , the power management module 400 and the electrical appliance 300 are arranged on the trunk body 1 , and the specific locations can be set according to actual needs. Preferably, the first power supply 100 can be arranged at a position convenient for users to disassemble. The detachable connection between the first power supply 100 and the luggage case body 1 can be specifically realized by buckling, snapping and the like.

Wherein, the position where the first power supply 100 is installed on the trunk body 1 is provided with a conductive component corresponding to the power output end of the first power supply 100 , and the conductive component is electrically connected to the power management module 400 . When the first power supply 100 is installed on the trunk body 1, the power output end of the first power supply 100 is in contact with the conductive part of the trunk body 1, thereby realizing the electrical connection between the power output end of the first power supply 100 and the power management module 400; When the first power supply 100 is disassembled from the trunk body 1 , the power output end of the first power supply 100 is separated from the conductive parts of the trunk body 1 , so that the first power supply 100 is disconnected from the power management module 400 .

It should be noted that the first power source 100 and the second power source 200 are used to implement specific functions of the suitcase, including but not limited to electronic weight, electronic lock, positioning, tracking, anti-theft or anti-lost, etc. Among them, the electrical appliance 300 is specifically a component that realizes the above-mentioned specific functions of the suitcase, and may include but not limited to GPRS/GSM modules, GPS modules, WIFI modules, Bluetooth modules, single-chip microcomputers, sensors, LEDs, buzzers, motor etc.

Wherein, the power management module 400 is the operation control module of the first power supply 100 and the second power supply 200, when the first power supply 100 is installed on the trunk body 1, it controls the first power supply 100 to supply power to the electrical appliance 300; when the first power supply 100 After being disassembled from the trunk body 1 , the second power supply 200 is controlled to supply power to the consumer 300 .

In the technical solution of the embodiment of the present invention, the suitcase is equipped with a first power supply 100 and a second power supply 200 electrically connected to the power management module 400, wherein the first power supply 100 is detachably connected to the suitcase body 1 and the power management module 400, The first power supply 100 can use lithium batteries and other power supplies with high energy density, high and stable discharge voltage, low self-discharge rate and other excellent battery characteristics but low safety. When the first power supply 100 is installed on the trunk body 1, the power management The module 400 controls the first power supply 100 to supply power to the electrical appliance 300 to ensure the daily stable use of the suitcase; the second power supply 200 can use a power supply with higher safety and allows the aircraft to be checked or checked. When the suitcase needs to be checked , the first power supply 100 can be disassembled from the suitcase body 1, and the power management module 400 controls the second power supply 200 to supply power to the electrical appliance 300, so as to ensure that the suitcase can be checked normally when it uses a power supply that cannot be checked in, such as a lithium battery. Relevant functions are realized during the consignment process.

Specifically, in order to facilitate disassembly and assembly by users, the suitcase body 1 includes a box body 500 , and the box body 500 is provided with an accommodating cavity 510 , and the first power supply 100 is detachably installed in the accommodating cavity 510 . Specifically, the accommodating cavity 510 may be provided inside the box body 500 , protruded from the outer shell of the box body 500 , or provided on a pull rod of the luggage case, and the like.

In order to facilitate the user to take out the first power supply 100 from the accommodating cavity 510, the accommodating cavity 510 is an opening, and an edge of the opening of the opening is provided with a flip cover 520, and the flip cover 520 is detachably fixed to the box body 500 connecting and closing the opening of the opening. The flip cover 520 can be detachably and fixedly connected to the box body 500 through buckles, plugs, etc. When the flip cover 520 is opened, the first power supply 100 can be taken out from the storage cavity 510, and when the flip cover 520 is closed, the first power supply 100 can be fixed in the storage chamber. cavity 510 to prevent the first power supply 100 from falling out of the accommodating cavity 510 and external sundries entering the accommodating cavity 510 to cause a short circuit.

Preferably, for the convenience of disassembly and assembly and the integrity of the appearance of the suitcase, the accommodating cavity 510 can be hidden. The rod body 610 and the handle part 620 connected to the rod body 610, the opening of the opening cavity is set corresponding to the handle part 620, the rod body 610 can move back and forth between the extended position and the retracted position, in the extended position In the extended position, the handle portion 620 is away from the opening and opposite to the flip cover 520 at a distance; in the retracted position, the handle portion 620 is close to the opening and covers the flip cover 520 . Through the above method, the user can hold the handle part 620 to move the rod body 610 to the extended position when consigning, and the part of the rod body 610 protrudes out of the box body 500. At this time, the handle part 620 is far away from the mouth and there is enough space between the mouth and the mouth , the user can directly open the flip cover 520 to disassemble the first power supply 100 from the accommodating cavity 510 without opening the box body 500 of the suitcase. When the suitcase is not in use, the user can hold the handle 620 to move the rod body 610 to the retracted position, the rod body 610 is stored in the box body 500, the handle part 620 is close to the surface of the box body 500 and covers the flip cover 520, which is beneficial to Save the volume of the suitcase and facilitate storage.

It should be noted that the pull rod 600 can also be directly and fixedly connected to the box body 500, and the handle portion 620 is arranged opposite to the opening of the opening at intervals.

Further, in order to improve the overall appearance of the suitcase, the surface of the box body 500 is provided with a groove 530, the opening of the accommodating chamber 510 is set on the inner wall of the groove 530, and the handle portion 620 is accommodated in the groove when it covers the flip cover 520. Inside the groove 530.

Further, in order to improve the durability of the first power supply 100, the first power supply 100 is provided with a power input port electrically connected to an external power supply. When an external power source is connected to the input port of the power source, the first power source 100 can be charged. Wherein, when the first power supply 100 is not installed on the luggage case body 1, the external power source connected to the power input port is only charged for the first power source 100; The external power source can charge the first power source 100 and the second power source 200 at the same time. In addition, optionally, the second power supply 200 may also be provided with a power input port.

Further, the first power supply 100 is also provided with a discharge output port for charging the electronic device, and the discharge output port can charge the electronic device when electrically connected to the charging input port of the electronic device. When needed, the user can connect the charging input port of electronic devices such as mobile phones and tablet computers to the discharge output port to realize the charging of the electronic devices by the first power source 100, which improves the practicability of the first power source 100 and enriches the functions of the suitcase. .

Specifically, the power input port and the discharge output port are provided at one end of the first power source 100 close to the opening of the opening, so that the first power source 100 can be charged without taking out the first power source 100 And the first power supply 100 charges other electronic devices.

Further, the second power supply 200 is detachably installed on the luggage case body 1 . The second power supply 200 can be fixedly installed inside the box body 500 , and can also be detachably installed inside the box body 500 . When the second power supply 200 is damaged or there are other practical needs, the second power supply 200 can be disassembled and replaced from the trunk body 1 .

Further, the second power supply 200 may include several sub-power supplies connected in series. In order to improve the safety of the second power supply 200, reduce the size of the second power supply 200, and ensure the realization of specific functions of the luggage, the second power supply 200 can be formed by connecting several sub-power supplies with smaller capacities in series to meet the specific functions of the luggage. achieve the desired voltage. If the sub-power supplies connected in series still cannot meet the required voltage for realizing the specific functions of the luggage, the power management module 400 can be used to boost the voltage to ensure that the specific functions of the luggage can be normally realized. It should be noted that the second power source 200 can also directly use a power source with a large capacity that can meet the requirements of safe consignment.

Further, the second power supply 200 is set close to the power management module 400 and installed in the box body 500, and the second power supply 200 and the power management module 400 are set close to the first power supply 100, which is beneficial to the first power supply 100, the second power supply 200 and Simplification of circuits between power management modules 400 and reliability of electrical connections.

The embodiment of the present invention also proposes a power management module 400. As shown in FIG. 1, the power management module 400 includes: a memory 440, a processor 450, and an A power management program, when the power management program is executed by the processor 450, implements the steps of the luggage power management method in the following embodiments. Wherein, the power management module 400 may be an MCU.

Specifically, the power management module 400 further includes a first detection unit 410 , a second detection unit 420 and a third detection unit 430 .

The first detection unit 410 is used to detect the connection state of the first power supply 100, and the processor 450 of the power management module 400 judges whether the first power supply 100 is installed on the Luggage body 1. Specifically, the connection state of the first power supply 100 is the state that the first power supply 100 is connected to or disconnected from the power management module 400. When the connection state of the first power supply 100 is connected to the power management module 400, the first power supply 100 is installed In the trunk body 1 ; when the connection state of the first power supply 100 is disconnected from the power management module 400 , the first power supply 100 has been removed from the trunk body 1 .

The second detection unit 420 is used for detecting the charging states of the first power source 100 and the second power source 200 . According to the charging states of the first power source 100 and the second power source 200, the processor 450 can judge whether there is an external power input to the first power source 100 or the second power source 200, and control the external power when there is an external power input. Charging by the second power source 200 can also control the external electric energy to only charge the first power source 100 , or control the external electric energy to only charge the second power source 200 , which can be set according to specific needs.

The third detection unit 430 is used to detect the electric quantity of the first power supply 100 and the second power supply 200, and the processor 450 can control whether the first power supply 100 or the second power supply 200 is used for the electrical appliance 300 according to the electric quantity of the first power supply 100. power supply, and can control whether the first unit 100 charges the electric energy lost by the second power supply 200 . In addition, according to the power levels of the first power source 100 and the second power source 200 , when the power of the first power source 100 and the second power source 200 is low, a prompt message is sent to remind the user to charge.

It should be noted that when the first power supply 100 is installed on the trunk body, the trunk has the first power supply 100 and the second power supply 200 at the same time, and the processor controls the priority to use the first power supply 100 to supply power to the consumer 300 . When the power supply of the first power supply 100 is seriously insufficient, the processor may also use the second power supply 200 to supply power to the consumer 300 . Moreover, the processor can control the first power source 100 to charge the second power source 200 that has already consumed part or all of the energy to a set power level according to the power level of the first power source 100 .

Referring to FIG. 3 , an embodiment of the present invention provides a power management method, the power management method includes:

Step S10, detecting the connection state of the first power supply 100;

Step S20, judging whether the first power source 100 is installed on the trunk body 1 according to the connection state of the first power source 100; if yes, execute step S30, if not, execute step S40.

The power management module 400 detects the connection state of the first power supply 100 , and judges whether the first power supply 100 is installed on the luggage body 1 according to the connection state of the first power supply 100 . Specifically, the connection state of the first power supply 100 is a state of the first power supply 100 being connected or disconnected from the power management module 400 . When the connection state of the first power supply 100 is connected to the power management module 400, the first power supply 100 is installed on the trunk body 1; when the connection state of the first power supply 100 is disconnected from the power management module 400, the first The power supply 100 has been disassembled from the trunk body 1 .

Step S30, controlling the first power supply 100 to supply power to the electrical appliance 300;

Step S40 , controlling the second power supply 200 to supply power to the electrical consumer 300 .

In the technical solution of the embodiment of the present invention, when the first power supply 100 with lower safety but better power performance is installed in the suitcase body 1, the first power supply 100 is used to supply power to the electrical appliance 300, so as to ensure the daily stable use of the suitcase. When the user removes the first power supply 100 from the trunk body 1 due to the need for safe consignment, the second power supply 200 with higher safety is used to supply power to the electrical appliance 300, so as to ensure that the suitcase uses lithium batteries and other items that cannot be consigned. When the power supply can be checked normally, relevant functions can be realized during the shipping process.

Further, as shown in FIG. 4, the luggage power management method further includes:

Step S50, when the first power supply 100 is installed on the trunk body 1, detect the charging status of the first power supply 100 and the second power supply 200;

Step S51, according to the charging status of the first power supply 100 and the second power supply 200, it is judged whether there is external power input to the first power supply 100 or the second power supply 200; if yes, execute step S511; if not, Then step S512 is executed.

Step S511 , controlling the external electric energy to charge the first power source 100 and the second power source 200 at the same time.

Specifically, the user can charge the first power supply 100 through the power input port on the first power supply 100, and when the first power supply 100 is installed on the trunk body 1, control the external electric energy input into the first power supply 100 and simultaneously supply the second power supply. 200 charging is beneficial to improve the durability of the first power source 100 and the second power source 200 .

In addition, after the step of judging whether the first power supply 100 or the second power supply 200 has external power input according to the charging states of the first power supply 100 and the second power supply 200, the step further includes:

Step S512, controlling the first power source 100 to charge the second power source 200 to a set power level.

The first power supply 100 charges the second power supply 200 to a set power level, so as to ensure that the second power supply 200 has enough power to meet the realization of specific functions of the luggage when the first power supply 100 is disassembled. During specific implementation, the user can charge the first power supply 100 when the first power supply 100 is disassembled, and install the first power supply 100 on the trunk body 1 after the first power supply 100 is fully charged, and the installed first power supply 100 can be used The self-stored power charges the second power source 200 to a set power.

Wherein, the set electric quantity can be preferentially set to meet the minimum electric quantity required for the suitcase to be checked, and the value of the electric quantity can be determined according to the actual use of the suitcase (such as the length of the checked luggage, etc.), so as to ensure that the second power supply 200 can To ensure the realization of specific functions when the luggage is checked, and to ensure the performance of the battery capacity of the first power supply 100 for daily use, so as to avoid frequent charging of the first power supply 100 . In addition, the set electric quantity can also be set as the maximum battery capacity of the second power supply 200 according to usage requirements.

Further, the luggage power management method also includes:

Step S60, when the first power supply 100 is installed on the trunk body 1, detect the power of the first power supply 100;

Step S70 , when the power of the first power source 100 is lower than a first preset value, control the first power source 100 to stop charging the second power source 200 .

When the first power supply 100 is installed on the trunk body 1, the first power supply 100 is preferentially used to supply power to the electrical appliance 300. Therefore, when the power of the first power supply 100 is lower than the first preset value, the first power supply 100 is controlled to stop supplying power to the electrical appliance 300. The second power supply 200 is charged so that the first power supply 100 has enough power to ensure the normal realization of the trunk function. Wherein, the size of the first preset value can be set according to actual usage conditions.

In addition, when the first power supply 100 is installed on the trunk body 1, it needs to charge the second power supply 200 in addition to powering the electrical appliances 300. If the user does not charge the first power supply 100 for a long time, the power of the first power supply 100 may be insufficient. . Therefore, when the power of the first power supply 100 is exhausted or lower than a certain value, the second power supply 200 can be controlled to supply power to the electrical appliance 300 as an emergency to ensure the normal realization of the trunk function.

Further, in order to ensure the normal realization of the trunk function, the trunk power management method further includes:

Step S80 , when the power of the first power supply 100 is lower than a second preset value or the power of the second power supply 200 is lower than a third preset value, a prompt message is sent to remind the user to charge.

When the first power supply 100 is insufficient or the second power supply 200 is insufficient, a prompt message can be sent through sound, light, image or text display to remind the user to charge the first power supply 100 or charge the first power supply 100 and the second power supply at the same time. The power supply 200 is charged to ensure the normal realization of specific functions of the luggage case. Wherein, in order to ensure the battery efficiency of the first power source 100 and the second power source 200 , the user may be preferentially reminded to use external electric energy to charge the first power source 100 and the second power source 200 at the same time.

Wherein, the second preset value and the third preset value are the basis for judging whether the first power supply 100 and the second power supply 200 have enough power to realize the trunk function, and the specific values can be set according to the actual usage. In addition, the prompt message can also be sent out when the total power of the first power source 100 and the second power source 200 is lower than a preset value, which will not be repeated here.

It should be noted that, as used herein, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or system comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or system. Without further limitations, an element defined by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article or system comprising that element.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present invention can be embodied in the form of a software product in essence or in other words, the part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM) as described above. , magnetic disk, optical disk), including several instructions to make a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) execute the method described in each embodiment of the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.

Claims (10)

1. A suitcase, characterized in that, the suitcase comprises a suitcase body and a first power supply, a second power supply, a power management module and an electrical appliance mounted on the suitcase body, the first power supply, the Both the second power supply and the electrical load are electrically connected to the power management module, and the first power supply is detachably connected to the trunk body, wherein: The first power supply is used to supply power to the electrical appliance when installed on the trunk body; The second power supply is used for supplying power to the electrical appliance after the first power supply is disassembled from the trunk body; The power management module is used to judge whether the first power supply is installed on the trunk body, and control the first power supply or the second power supply to supply power to the electrical appliance according to the judgment result. 2. The suitcase according to claim 1, wherein the power management module is provided with a first detection unit, the first detection unit is used to detect the connection state of the first power supply, and the power management module The module judges whether the first power supply is installed on the trunk body according to the connection state of the first power supply. 3. The suitcase according to claim 2, wherein the power management module is further provided with a second detection unit, and the second detection unit is used to detect the power of the first power supply and the second power supply. charging. 4. The suitcase according to claim 3, wherein the power management module is further provided with a third detection unit, and the third detection unit is used to detect the power of the first power supply and the second power supply. electricity. 5. A luggage power management method, based on the luggage according to any one of claims 1 to 4, characterized in that the luggage power management method comprises the following steps: Detecting the connection state of the first power supply; judging whether the first power supply is installed on the trunk body according to the connection state of the first power supply; If so, then controlling the first power supply to supply power to electrical appliances; If not, control the second power supply to supply power to the electric appliance. 6. The luggage power management method according to claim 5, further comprising: When the first power supply is installed on the trunk body, detecting the charging states of the first power supply and the second power supply; judging whether there is external power input to the first power supply or the second power supply according to the charging states of the first power supply and the second power supply; If so, controlling the external electric energy to simultaneously charge the first power source and the second power source. 7. The luggage power management method according to claim 6, characterized in that, according to the charging states of the first power supply and the second power supply, it is judged whether there is external electric energy in the first power supply or the second power supply After entering the steps also include: If not, controlling the first power supply to charge the second power supply to a set electric quantity. 8. The luggage power management method according to claim 7, further comprising: When the first power supply is installed on the trunk body, detecting the electric quantity of the first power supply; When the electric quantity of the first power supply is lower than a first preset value, the first power supply is controlled to stop charging the second power supply. 9. The luggage power management method according to claim 8, further comprising: When the power of the first power supply is lower than a second preset value or the power of the second power supply is lower than a third preset value, a prompt message is sent to remind the user to charge. 10. A power management module, characterized in that, the power management module comprises: a memory, a processor, and a computer program stored in the memory and operable on the processor, the computer program being controlled by the When the processor is executed, the luggage power management method according to any one of claims 5 to 9 is realized.