CN115001100A

CN115001100A - Portable power source, portable power source management device and portable power source system

Info

Publication number: CN115001100A
Application number: CN202210701382.5A
Authority: CN
Inventors: 朱进生
Original assignee: Nine Commercial Beijing Technology Co ltd
Current assignee: No9 New Energy Technology Beijing Co ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-09-02

Abstract

The disclosure provides a mobile power supply, a mobile power supply management device and a mobile power supply system. The mobile power supply system comprises a mobile power supply management device and one or more mobile power supplies. The mobile power supply comprises a battery and a battery control circuit. The mobile power supply management device comprises a charging circuit and a discharging circuit. The mobile power supply management device is used for managing charging and discharging of a battery of the mobile power supply. The mobile power supply management device is connected with the mobile power supply, and the mobile power supply is detachably and mechanically connected with the mobile power supply. The quantity and the power of the mobile power supplies of the mobile power supply system can be adjusted according to requirements, and different battery capacities and discharge capacities are realized. The detachable mechanical connection facilitates the recombination of the mobile power supply system.

Description

Portable power source, portable power source management device and portable power source system

Technical Field

The invention relates to the technical field of mobile power supplies, in particular to a mobile power supply, a mobile power supply management device and a mobile power supply system.

Background

With more and more portable electronic products, outdoor power utilization scenes of users are continuously expanded, and the application of the mobile power supply is more and more extensive and frequent. The mobile power supply (or called as an outdoor power supply or a portable energy storage power supply) can solve the charging problem of electric equipment such as outdoor equipment and portable electronic products. Different power consumption scenes have different requirements on the battery capacity and the discharge power of the mobile power supply, and the mobile power supply with a single model cannot meet the personalized requirement easily. Designing and producing a mobile power supply of a corresponding model for each application scene can lead to complicated models of products, and is not favorable for users to select.

Disclosure of Invention

In view of the above, embodiments of the present application provide a mobile power supply, a mobile power supply management device and a mobile power supply system. According to the portable power source and the portable power source management device combined according to the requirements, the adaptability of the power utilization scene is improved. Between portable power source management and the portable power source, detachably mechanical connection between portable power source and the portable power source is convenient for portable power source system's reorganization.

According to a first aspect of embodiments of the present application, there is provided a mobile power supply, including: a housing; the first mechanical connecting mechanism is arranged on the shell and is used for being matched with a mechanical connecting structure of a previous-stage mobile power supply to mechanically connect the mobile power supply with the previous-stage mobile power supply; and the second mechanical connecting mechanism is arranged on the shell and is used for being matched with the mechanical connecting structure of the next-stage mobile power supply to mechanically connect the mobile power supply with the next-stage mobile power supply.

In a possible implementation manner, the first mechanical connection mechanism includes a screw hole and a receiving hole, the second mechanical connection mechanism includes a screw and a mounting protrusion, the screw hole of the mobile power supply is matched with the screw of the second mechanical connection mechanism of the upper-level mobile power supply, and the receiving hole of the mobile power supply is used for receiving the mounting protrusion of the second mechanical connection mechanism of the upper-level mobile power supply.

In a possible implementation manner, the side wall of the housing is provided with an opening for exposing the cap portion of the screw, the first mechanical connection mechanism further includes a first protrusion located on the upper wall of the housing, the screw hole is provided in the first protrusion, the second mechanical connection mechanism further includes a second protrusion located on the lower wall of the housing, and when the mobile power supply is mechanically connected with the upper-level mobile power supply, the first protrusion of the mobile power supply abuts against the second protrusion of the upper-level mobile power supply.

In a possible implementation manner, the first end of the slider is arranged on the first side wall of the casing, the second end of the slider is retracted by a preset distance relative to the second side wall of the casing, the preset distance is the thickness of the end wall, when the mobile power supply is mechanically connected with the upper-level mobile power supply, the second end of the slider of the mobile power supply is fixed to the end wall of the upper-level mobile power supply through screws, and the first end of the slider of the mobile power supply is fixed to the side wall where the sliding groove opening of the upper-level mobile power supply is located through screws.

In one possible implementation, the second mechanical connection mechanism includes a first engagement member including a second engagement member provided on an upper wall of the housing, the second engagement member includes a base portion and a cap portion connected to the base portion, a maximum width of the cap portion of the second engagement member is larger than a width of the base portion, the first engagement member includes a base portion, a side wall connected to the base portion, and two arm portions, the first engagement member has a first accommodation space defined by the side wall and the two arm portions with a second accommodation space therebetween, the base portion of the second engagement member of the mobile power source passes through the second accommodation space of the first engagement member of the upper-stage mobile power source, and the cap portion of the second engagement member of the mobile power source is accommodated in the first accommodation space of the first engagement member of the upper-stage mobile power source, the cap of the second engaging piece of the mobile power supply is abutted by the two arm portions of the first engaging piece of the upper stage mobile power supply, thereby mechanically connecting the mobile power supply and the upper stage mobile power supply.

According to a second aspect of embodiments of the present application, there is provided a mobility management apparatus, including: a housing comprising an upper wall and a lower wall; a charging circuit disposed within the housing; a discharge circuit disposed within the housing; the third interface module is arranged on the lower wall of the shell and is used for electrically connecting the mobile power supply management device with a mobile power supply; and the third mechanical connecting mechanism is used for being matched with the first mechanical connecting structure of the mobile power supply to mechanically connect the mobile power supply management device with the mobile power supply.

In a possible implementation manner, the third mechanical connection mechanism includes a screw, a third protrusion and a screw hole penetrating through the third protrusion are provided on the lower wall of the housing of the mobile power supply management device, and the screw of the third mechanical connection mechanism cooperates with the screw hole of the third protrusion and the screw hole of the first mechanical connection structure of the mobile power supply to mechanically connect the mobile power supply management device with the mobile power supply.

In a possible implementation manner, the third mechanical connection mechanism includes a chute disposed on the lower wall of the housing, a first end of the chute is provided with a chute opening, a second end of the chute is provided with an end wall, and the chute is configured to receive a slider of the mobile power supply, so as to mechanically connect the mobile power supply management device with the mobile power supply; alternatively, the third mechanical connection mechanism includes a first engaging member including a base portion, a side wall connected to the base portion, and two arm portions, the base portion of the second engaging member of the mobile power source passes through a space between the two arm portions of the first engaging member of the mobile power source management device, the cap portion of the second engaging member of the mobile power source is accommodated in an accommodating space defined by the side wall and the two arm portions of the first engaging member of the mobile power source management device, and the cap portion of the second engaging member of the mobile power source is abutted by the two arm portions of the first engaging member of the mobile power source management device, thereby mechanically connecting the mobile power source management device and the mobile power source.

According to a third aspect of embodiments of the present application, there is provided a mobile power supply system including: a mobile power management device and one or more mobile power sources. The mobile power supply management device is the mobile power supply management device, and the mobile power supply is the mobile power supply. And the third mechanical connecting mechanism of the mobile power supply management device is used for being matched with the first mechanical connecting structure of the mobile power supply of the next stage to mechanically connect the mobile power supply management device with the mobile power supply of the next stage.

In the scheme of the embodiment of the invention, the mobile power supply comprises a battery for supplying power to the external electric equipment, and the mobile power supply management device comprises a charging circuit and a discharging circuit for realizing charging and discharging of the battery in the mobile power supply. The mobile power supply and the mobile power supply management device are both provided with interface modules, so that the electrical connection between the mobile power supply and the mobile power supply management device is realized. Different mobile power sources may have different battery capacities and/or discharge capabilities. The number and power of the mobile power supplies of the mobile power supply system can be adjusted according to requirements, different battery capacities and discharge capacities are realized, and the mobile power supply system is suitable for personalized application scenes. Between portable power source and the portable power source management device, detachably mechanical connection between portable power source and the portable power source is convenient for portable power source system to reorganize.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exemplary block diagram of a mobile power supply provided by an embodiment of the application.

Fig. 2 is an exemplary block diagram of a mobile power management apparatus provided in an embodiment of the present application.

Fig. 3 is an exemplary perspective view of a mobile power supply provided by an embodiment of the present application.

Fig. 4 is an exemplary perspective view of a mobile power management device provided by an embodiment of the present application.

Fig. 5 is a schematic diagram of a mobile power supply system provided in the first embodiment of the present application in an unassembled state.

Fig. 6 is a schematic diagram of the mobile power supply system provided in the first embodiment of the present application in an assembled state.

Fig. 7 is a cross-sectional view of a mobile power supply system in an assembled state according to a first embodiment of the present application.

Fig. 8 is a schematic diagram of a mobile power supply system provided in a second embodiment of the present application in an unassembled state.

Fig. 9 is a schematic diagram of a mobile power supply system in an assembled state according to a second embodiment of the present application.

Fig. 10 is a schematic diagram of a mobile power supply system provided in a third embodiment of the present application in an unassembled state.

Fig. 11 is a schematic diagram of a mobile power supply system provided in a third embodiment of the present application in an assembled state.

Fig. 12 is a cross-sectional view of a mobile power supply system in an assembled state according to a third embodiment of the present application.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The mobile power supply in the prior art is in a single form, and functional modules such as a battery, alternating current discharge (inversion discharge) and direct current discharge are integrated in a shell. Mobile power manufacturers need to design corresponding models according to different battery capacities and power requirements, so that the models of the mobile power are complicated. When the application requirements of different battery capacities and different powers are met, users need to purchase mobile power supplies of different models, and therefore high cost is needed.

The embodiment of the application provides a mobile power supply, a mobile power supply management device and a mobile power supply system. The mobile power supply system comprises a mobile power supply management device and one or more mobile power supplies. Each mobile power supply comprises a battery for supplying power to external electric equipment, the mobile power supply management device is used for realizing charging and discharging management of the battery in the mobile power supply, and a user can combine the mobile power supply and the mobile power supply management device according to individual power requirements. For example, the batteries of different mobile power sources may have different capacities or discharge capabilities, and the user may select and combine the number of mobile power sources, battery capacities, and discharge capabilities.

Fig. 1 is an exemplary structural block diagram of a mobile power supply provided in an embodiment of the present application. The mobile power supply 10 includes: housing 170, battery 110, battery control circuit 120, a first mechanical connection mechanism, and a second mechanical connection mechanism (not shown in fig. 1). The battery 110 and the battery control circuit 120 are disposed in the housing 170. The housing 170 protects the components disposed therein. The mobile power supply 10 is also referred to as a battery PACK (PACK). Herein, the mobile power supply 10 is a battery pack that does not include a charging circuit and a discharging circuit. The housing 170 includes an upper wall 171 and a lower wall 172.

The battery 110 is used to supply power to external electric devices. The battery 110 is a secondary battery (also referred to as a rechargeable battery or a secondary battery), such as a lithium ion battery. In some embodiments, battery 110 is a battery pack that includes a plurality of secondary batteries arranged in series or in parallel. The battery control circuit 120 is used to monitor the state of the battery 110, and the monitoring contents include, for example, the voltage, the charging current, the discharging current, the temperature, and the like of the battery 110. When the battery 110 is detected to have the conditions of overcharge, overdischarge, overcurrent, short circuit, overlarge power, overheating and the like, the battery control circuit 120 sends out an alarm signal.

The first mechanical connection mechanism is arranged on the shell and is used for being matched with a mechanical connection structure of a mobile power supply management device or a previous mobile power supply to mechanically connect the mobile power supply 10 with the mobile power supply management device or the previous mobile power supply. The second mechanical connecting mechanism is arranged on the shell and is used for being matched with a mechanical connecting structure of the next-stage mobile power supply to mechanically connect the mobile power supply 10 with the next-stage mobile power supply. Specifically, the first mechanical coupling mechanism and the second mechanical coupling mechanism detachably mechanically couple the portable power source 10 with the portable power source management apparatus or the upper stage/lower stage portable power source. When the mobile power supply 10 is mechanically connected to the mobile power supply management device or the upper/lower mobile power supply, the electrical interface module/second interface module of the mobile power supply 10 is in butt joint with the electrical interface module of the mobile power supply management device or the upper/lower mobile power supply, so that the mobile power supply 10 is electrically connected to the mobile power supply management device or the upper/lower mobile power supply.

The mobile power supply 10 of the embodiment of the present application may be combined with a mobile power supply management device and other mobile power supplies through the first mechanical connection mechanism and the second mechanical connection mechanism. The mobile power supply comprises a battery for supplying power to external electric equipment, and the mobile power supply management device comprises a charging circuit and a discharging circuit for managing charging and discharging of the mobile power supply. One or more mobile power supplies 10 are managed by a mobile power supply management device, and the number of the mobile power supplies 10 can be adjusted to adapt to personalized application scenes. Through first mechanical connecting machine and second mechanical coupling mechanism, portable power source and portable power source management device, portable power source and last level or next grade portable power source can be connected fast, and the combination is portable power source system, and convenience of customers uses.

In some embodiments, the mobile power supply 10 further includes bus bars 151 and 152, and the bus bars 151 and 152 are disposed within the housing 170. Bus 151 is a positive-side bus, and bus 152 is a negative-side bus. The positive electrode (also referred to as anode) of the battery 110 is connected to the positive-side bus 151, and the negative electrode (also referred to as cathode) of the battery 110 is connected to the negative-side bus 152. In the embodiment shown in fig. 1, the positive electrode of the battery 110 is connected to the positive side bus bar 151 through the battery control circuit 120.

Fig. 2 is an exemplary block diagram of a mobile power management apparatus provided by an embodiment of the present application. The mobile power supply management device 20 includes: housing 270, charging circuit 210, discharging circuit, and a third mechanical connection mechanism (not shown in fig. 2). The housing 270 includes an upper wall 271, a lower wall 272, and side walls 273. The charging circuit 210 and the discharging circuit are disposed within the housing 270. The third mechanical connection mechanism is disposed on the housing 270, and is used to cooperate with the mechanical connection mechanism of the mobile power supply 10 to mechanically connect the mobile power supply management device 20 and the mobile power supply 10. The mechanical connection mechanism includes, for example, one or more of a screw connection mechanism, a snap connection mechanism, and a slide connection mechanism. The portable power source management device 20 further includes a positive-side bus 251 and a negative-side bus 252, and the charging circuit 210 and the discharging circuit are connected to the battery in the portable power source 10 via the positive-side bus 251 and the negative-side bus 252.

The input end of the charging circuit 210 is connected to an external power source through the charging interface 211, and the output end of the charging circuit 210 is connected to the battery 110 in the mobile power supply 10 through the bus bars 251 and 252. The charging circuit is used for charging the battery 110 in the mobile power supply 10. For example, the charging circuit charges the battery 110 according to a predetermined charging algorithm based on information such as the voltage and charging current of the battery 110 provided by the battery control circuit 120 of the mobile power supply 10. The charging interface 251 includes at least one of a dc interface and an ac interface.

The discharge circuit includes an ac discharge circuit 220, a dc discharge circuit 230, and a USB discharge circuit 240.

The output end of the ac discharging circuit 220 is connected to the ac discharging interface 221, and the input end of the ac discharging circuit 220 is connected to the battery 110 in the mobile power supply 10 through the bus bars 251 and 252. The ac discharging circuit 220 is used for supplying an ac power of 220V to external consumers. The AC discharge circuit 220 includes a DC-to-AC inverter (DC-to-AC inverter). The electric equipment is, for example, an electric power tool, a mobile phone charger, or the like.

The output terminal of the dc discharging circuit 230 is connected to the dc discharging interface 231. The input terminal of the dc discharge circuit 230 is connected to the battery 110 in the mobile power supply 10 via the bus bars 251 and 252. The dc discharge circuit 230 is used to provide 12V dc power for external consumers. The DC discharge circuit 230 includes a DC-to-DC converter (DC-to-DC converter). In some embodiments, the dc discharging interface 231 may charge the battery of the vehicle by connecting to a cigarette lighter interface of the vehicle.

The USB discharging circuit 240 is connected to the USB interface 241. The USB discharge circuit 240 includes, for example, a BUCK circuit, for example, which reduces the 12V dc power provided by the dc discharge circuit 230 to 5V dc power. The USB interface 241 includes one or more of types-A, type-B, type-C.

The mobile power management device 20 also includes a controller 260. When the portable power supply management device 20 and the portable power supply 10 are mechanically connected, the controller 260 is connected to the battery control circuit 120 in the portable power supply 10 via the signal line 261 and the interface 283. The controller 260 issues instructions to the charging circuit 210 and the discharging circuit according to information such as the voltage, the charging current, and the discharging current of the battery 110 provided by the battery control circuit 120.

In some embodiments, the mobile power management apparatus 20 is further provided with a communication module, and the controller 260 may communicate with the electronic device at the user end through the communication module. The communication module is, for example, a WIFI module. The electronic device at the user end may be a controller of the mobile power supply 10 and the mobile power supply management apparatus 20, or may be a mobile electronic device running a control program.

Fig. 3 is an exemplary perspective view of a mobile power supply provided by an embodiment of the present application, and fig. 4 is an exemplary perspective view of a mobile power supply management device provided by an embodiment of the present application. As shown in fig. 3 and 4, the portable power source 10 and the portable power source management device 20 are cubic, the buffer member 177 is provided at the top corner of the portable power source 10, the buffer member 177 covers the top corner of the portable power source 10, the buffer member 277 is provided at the top corner of the portable power source management device 20, and the buffer member 277 covers the top corner of the portable power source management device 20. The material of the buffer 177 and the buffer 277 is, for example, rubber. In some embodiments, the length and width of the mobile power source 10 are the same as the length and width of the mobile power management device 20, and when the mobile power source 10 and the mobile power management device 20 are combined through a mechanical connection, the combination is a cube. As shown in fig. 4, the charging interface 211, the ac discharging interface 221, the dc discharging interface 231, and the USB interface 241 are disposed on a side wall 273 of the housing 270 of the portable power management device 20, where the USB interface 241 includes a USB interface 241a and a USB interface 241B, the USB interface 241a is a USB type-a interface or a type-B interface, and the USB interface 241B is a USB type-C interface.

The present application also provides a mobile power supply system including: a mobile power management device and one or more mobile power sources. The mobile power management device is, for example, the mobile power management device 20 described above, and the mobile power supply is, for example, the mobile power supply 10 described above. The mobile power management device 20 and the one or more mobile power sources 10 are detachably mechanically connected. The mobile power management device 20 and the one or more mobile power sources 10 are removably mechanically connected, for example, by one or more of a screw connection mechanism, a snap connection mechanism, a slide connection mechanism. The mobile power source management device and one or more mobile power sources are combined through a mechanical connection. After the mobile power supply management device is combined with one or more mobile power supplies, the mobile power supply management device is correspondingly connected with the power interfaces of the one or more mobile power supplies, so that the connection of the charging circuit, the discharging circuit and the battery in the one or more mobile power supplies and the connection of the signal line are realized. The batteries in one or more mobile power supplies are connected in parallel through a bus. The user can control the synchronous charging or the synchronous discharging of the batteries 110 in the plurality of mobile power supplies 10. The plurality of mobile power supplies 10 discharge synchronously, and are suitable for scenes with high requirements on discharge power. The user may also control the batteries of some of the mobile power supplies 10 to be charged or discharged, and the batteries of other mobile power supplies 10 not to be charged or discharged. The controller 260 of the mobile power supply management device 20 sends an instruction to the battery control circuit 120 of each mobile power supply 10 to implement synchronous charging/synchronous discharging or partial charging/partial discharging. The user can also implement a personalized charging and discharging scheme in a self-defining mode. The user can configure the charging and discharging scheme through a touch screen on the mobile power management device, and can also configure the charging and discharging scheme by using the electronic equipment.

Fig. 5 is a schematic diagram of a mobile power supply system provided in the first embodiment of the present application in an unassembled state. Fig. 6 is a schematic diagram of the mobile power supply system provided in the first embodiment of the present application in an assembled state. Fig. 7 is a cross-sectional view of a mobile power supply system in an assembled state according to a first embodiment of the present application. In the first embodiment, the mobile power management apparatus 20 and one or more mobile power sources 10 are mechanically connected by screw holes. The mobile power supply system shown in fig. 5-7 includes a mobile power supply management device 20 and mobile power supplies 10-1 and 10-2.

The third mechanical connection mechanism of the mobile power management device 20 comprises at least one screw 291. The screw 291 may pass through the lower wall 272 of the housing 270 of the mobile power management device 20. The lower wall 272 of the housing 270 is provided with a screw hole, the inner wall of which is provided with a thread matching the screw 291. The screw hole is arranged at a position close to the side wall in the lower wall. For example, at least one pair of the screw 291 and the screw hole is provided in the lower wall of the case 270 of the portable power management device 20 at a position close to at least one side wall. For example, as shown in fig. 5 to 7, a screw 291 and a screw hole are provided at a lower wall position on the side of the side wall 275 and at a lower wall position on the side of the side wall opposite to the side wall 275 of the housing 270. In other embodiments, the screws 291 and the threaded holes are provided on all four sides of the lower wall 272. The sidewall of the case 270 is provided with an opening corresponding to the screw 291, and the opening exposes the cap of the screw 291. By providing an opening that exposes the cap of the screw 291, the user is facilitated to rotate the screw 291. The cap of the screw 291 is provided with a thread for increasing friction when the screw 291 is rotated by the user.

The first mechanical connection mechanism of the mobile power supply 10-1 includes a screw hole 194. Screw hole 194 is disposed on upper wall 171 of housing 170 of mobile power supply 10-1, and screw hole 194 matches screw 291, for example, screw hole 194 and screw 291 are respectively provided with matching threads. The mobile power supply management device 20 and the mobile power supply 10 are fixedly connected by rotating the screw 291 through the screw hole of the lower wall 272 of the mobile power supply management device 20 and the screw hole 194 of the upper wall 171 of the casing 170 of the mobile power supply 10-1. By rotating the screw 291 in the reverse direction, the fixed connection between the portable power source management device 20 and the portable power source 10 can be released. The second mechanical connection mechanism of the mobile power supply 10-1 is similar to the third mechanical connection mechanism of the mobile power supply management device 20. The second mechanical connecting mechanism of the mobile power supply 10-1 comprises a screw 191, the lower wall 172 of the mobile power supply 10-1 is also provided with a corresponding screw hole, and the first mechanical connecting mechanism of the mobile power supply 10-2 comprises a screw hole 194, wherein the screw 191 of the mobile power supply 10-1 is matched with the screw hole of the lower wall 172 of the mobile power supply 10-1 and the screw hole 194 of the upper wall 171 of the mobile power supply 10-2, so that the mobile power supply 10-1 and the mobile power supply 10-2 are fixedly connected. Screw 191 is arranged in a similar manner to screw 291. The side wall of case 170 of mobile power supply 10-1 is provided with an opening that exposes the cap of screw 191. The cap of the screw 291 is provided with a thread.

As shown in fig. 4, in the lower wall 272 of the housing of the mobile power supply management device 20, a projection 272a (referred to as a third projection herein) is provided at a position corresponding to the screw 294; a projection 171a (referred to herein as a first projection) is provided on an upper wall 171 of the casing of the mobile power supply 10-1, and a projection 172a (referred to herein as a second projection) is provided on a lower wall 172 of the casing of the mobile power supply 10-1. The screw hole of the lower wall 272 is provided at the projection 272 a. Screw hole 194 opens in protrusion 171 a. The boss 172a is provided with a hole through which a screw 194 passes. As shown in fig. 5, when the mobile power supply management device 20 and the mobile power supply 10-1 are combined, the protrusion 272a and the protrusion 171a are abutted, and by providing the protrusion 272a and the protrusion 171a, the length of the screw hole of the lower wall 272 of the mobile power supply management device 20 and the screw hole 194 of the upper wall 171 of the housing 170 of the mobile power supply 10-1 is increased, and the screw 294 is engaged with more threads, so that the mechanical connection strength between the mobile power supply management device 20 and the mobile power supply 10-1 is improved. Also, the protrusion 172a of the lower wall of the case of the mobile power supply 10-1 and the protrusion 171a of the upper wall of the case of the mobile power supply 10-2 are offset when the mobile power supply 10-1 and the mobile power supply 10-2 are combined, and the protrusion 272a and the protrusion 171a improve the strength of the mechanical connection of the mobile power supply 10-1 and the mobile power supply 10-2. Preferably, the third mechanical connection mechanism of the mobile power management device 20 further includes a mounting protrusion 292, the mounting protrusion 292 is disposed on the lower wall 272 of the housing 270 of the mobile power management device 20, and the number of the mounting protrusions 292 is not limited, for example, 4. The first mechanical connection mechanism of the mobile power source 10-1 further includes a receiving hole 193. The accommodation hole 193 is provided at the upper wall 171 of the case 170 of the mobile power supply 10-1. The hole wall of the receiving hole 193 protrudes from the upper wall 171 of the case 170 of the portable power source 10, and the receiving hole 193 receives the mounting protrusion 292. The receiving hole 193 and the mounting protrusion 292 cooperate to facilitate alignment of the mobile power management device 20 and the mobile power source 10, and after the alignment of the mobile power management device 20 and the mobile power source 10, the rotating screw 291 realizes the fixed connection of the mobile power management device 20 and the mobile power source 10. Similarly, the second mechanical connection mechanism of the mobile power supply 10-1 further includes a mounting protrusion 191, the mounting protrusion 191 is disposed on the lower wall 172 of the housing 170 of the mobile power supply 10-1, and the second mechanical connection mechanism of the mobile power supply 10-2 further includes a receiving hole 193.

The mechanical connection mechanism of the mobile power supply management device 20 is matched with the first mechanical connection mechanism of the mobile power supply 10-1, so that the mobile power supply management device 20 is detachably and mechanically connected with the mobile power supply 10-1. The second mechanical connection mechanism of the mobile power supply 10-1 is matched with the first mechanical connection mechanism of the mobile power supply 10-2 to realize detachable mechanical connection of the mobile power supply 10-1 and the mobile power supply 10-2. When the portable power source management device 20 and the portable power source 10-1 are mechanically connected.

In some embodiments, the third mechanical connection mechanism of the mobile power supply management device 20 includes a screw hole disposed on the lower wall 272 of the housing 270, the first mechanical connection mechanism of the mobile power supply 10 includes a screw passing through the upper wall 171 of the housing 170, and the second mechanical connection mechanism of the mobile power supply 10 includes a screw hole disposed on the lower wall of the housing 170. In this arrangement, rotating the screw of the portable power source 10 into the screw hole of the portable power source management device 20 realizes the mechanical connection of the portable power source 10 and the power source management device 20.

Fig. 8 is a schematic diagram of a mobile power supply system provided in a second embodiment of the present application in an unassembled state. Fig. 9 is a schematic diagram of a mobile power supply system in an assembled state according to a second embodiment of the present application. In the second embodiment, the mobile power management device 20 and one or more mobile power sources 10 are mechanically connected by a chute-slider and a screw. The lower wall of the mobile power supply management device 20 is provided with a sliding groove or a sliding block, and the upper wall and the lower wall of the mobile power supply 10 are provided with a sliding groove and a sliding block. The mobile power supply system shown in fig. 8 and 9 includes a mobile power supply management device 20 and mobile power supplies 10-1 and 10-2.

The mechanical connection mechanism of the mobile power management device 20 includes a chute (not shown). The chute is provided in a lower wall 272 of the housing 270 of the portable power management device 20. In the length direction X of the chute (the direction in which the side wall 276 points towards the side wall 275), a first end of the chute is provided with an opening and a second end is provided with an end wall. The second end of the chute is disposed in a side wall 275 of the housing 270 of the mobile power management device 20, the side wall 275 acting as an end wall of the chute, the end wall being provided with an aperture 296 a. The opening of the chute is disposed in a side wall 276 of the housing 270 of the mobile power management device 20, the side wall 276 being opposite the side wall 275. The side wall 276 at the opening of the chute is retracted by a predetermined distance, and screw holes are provided on the side wall 276 at both sides of the opening of the chute.

The first mechanical linkage of the mobile power supply 10-1 includes a slider 197. The slider 197 is provided on the upper wall 171 of the housing 170 of the mobile power supply 10-1. The slider 197 has a first end 197a and a second end 197b in the length direction x. In the lengthwise direction of the slider 197, the first end 197a of the slider 197 is retracted a predetermined distance inward from the side wall 175 (referred to herein as the first side wall of the case) to accommodate the end wall of the chute of the mobile power management device 20. The first end 197a is provided with a screw hole 197c, and the screw hole 197c corresponds to the hole 296 a. Second end 197b of slider 197 is disposed on side wall 176 of housing 170 (referred to herein as the second side wall of the housing), and hole 197d is disposed on side wall 176, and hole 197d corresponds to the threaded hole on side wall 276 of mobile power management device 20. The slider 197 slides into the slide slot in the direction X until the first end 197a of the slider 197 abuts the end wall of the slide slot and the second end 197b of the slider 197 abuts the side wall 276 at the opening of the slide slot. The screw 301 is inserted further into the screw hole 197c after passing through the hole 296 a. The screw 302 is inserted further into the screw hole on the side wall 276 of the portable power management device 20 after passing through the hole 197 d. Further fixing connection of the mobile power supply management device 20 and the mobile power supply 10-1 is performed through screw-screw holes. The connection between the portable power source management device 20 and the portable power source 10-1 can be released by releasing the screw-screw hole coupling and sliding the slider out of the sliding groove. It is understood that the slider 197 of the mobile power supply 10-1 may be fixed by other means after sliding into the sliding slot of the mobile power supply management device 20, such as a snap-fit manner in the second embodiment, which is not limited in this application.

Further, the width of the upper portion of the sliding block 197 is larger than that of the lower portion, and the sliding groove has a corresponding cross-sectional shape, so that the connection between the portable power source management device 20 and the portable power source 10-1 can be more secure, especially when the portable power source system is transported.

Similarly, the second mechanical connection mechanism of the mobile power supply 10-1 includes a sliding slot disposed on the lower wall 172, the first mechanical connection mechanism of the mobile power supply 10-2 includes a sliding block 197 disposed on the upper wall 171, and after the sliding block 197 of the mobile power supply 10-2 slides into the sliding slot of the mobile power supply 10-1, the sliding slot and the sliding block are fixed through screw-screw hole coupling.

In some embodiments, the mechanical connection mechanism of the mobile power supply management device 20 includes a slider disposed on the lower wall 272 of the housing 270, and the first mechanical connection mechanism of the mobile power supply 10 includes a slide slot disposed on the upper wall 175 of the housing 170.

Fig. 10 is a schematic diagram of a mobile power supply system provided in a third embodiment of the present application in an unassembled state. Fig. 11 is a schematic diagram of a mobile power supply system provided in a third embodiment of the present application in an assembled state. Fig. 12 is a cross-sectional view of a mobile power supply system in an assembled state according to a third embodiment of the present application.

The mobile power source management device 20 and the mobile power source 10 are provided with a first engaging piece and a second engaging piece, respectively. The mobile power supply system shown in fig. 10-12 includes a mobile power supply management device 20 and mobile power supplies 10-1 and 10-2.

The third mechanical connection mechanism of the mobile power management device 20 includes at least one first engaging member 297 a. At least one side wall of the case 270 of the mobile power management device 20 is provided with an opening 297b for accommodating the first engaging piece 297 a. For example, as shown in fig. 10-12, opening 297b is provided in sidewall 275 and the sidewall opposite sidewall 275 of housing 270.

The first mechanical connection mechanism of the mobile power supply 10-1 includes a second engagement member 199. The second engaging member 199 is provided on the upper wall 171 of the case 170 of the mobile power supply 10-1. Second catch 199 includes a base 199a and a cap 199 b. The base portion 199a is, for example, rod-shaped, and the base portion 199a is connected to the bottom surface of the cap portion 199 b. The cap 199b has a width gradually decreasing from bottom to top. The cap portion 199b has a maximum width greater than the base portion 199 a. The maximum width of the cap 199b is the width of the bottom surface of the cap 199 b.

The first snap member 297a includes a base 2973, a side wall 2971 coupled to the base 2973, and two arm portions 2972 extending from the side wall 2971. The base 2973 is provided with a cross-shaped recess to facilitate the user's use of a tool to rotate the first engagement member 297 a. The first engaging piece 297a is substantially cylindrical, and a first accommodating space for accommodating the cap 199b of the first engaging piece 199 is opened along the axial direction of the cylindrical body. The side wall 2971 and the two arm portions 2972 define a first accommodation space capable of accommodating the cap portion 199b of the second click member 199. The distance between the two arms 2972 allows the base 199a of the rivet 199 to pass through. Between the two arm portions 2972 is a second accommodation space that allows the base portion 199a of the rivet 199 to pass through.

After the portable power source management device 20 and the portable power source 10-1 are aligned, the first engaging member 297a is inserted into the opening 297, and the first engaging member 297a is rotated to engage with the second engaging member 199. As shown in fig. 12, when the first engaging member 297a and the second engaging member 199 are engaged with each other, the two arm portions 2972 of the first engaging member 297a abut against the lower surface of the cap portion 199b of the second engaging member 199, and the inner surfaces of the side walls 2971 abut against the upper surface of the cap portion 199b of the rivet 199. The first engaging piece 297a and the second engaging piece 199 achieve fixed connection between the mobile power supply management device 20 and the mobile power supply 10. In the reverse direction, the first engaging piece 297a allows the mobile power supply management apparatus 20 and the mobile power supply 10 to be disconnected from each other.

Similarly, the second mechanical connection mechanism of the mobile power source 10-1 includes a first engaging member 198a and an opening 198b disposed on the side wall, the first mechanical connection mechanism of the mobile power source 10-2 includes a second engaging member 199, and the first engaging member 198a of the mobile power source 10-1 and the second engaging member 199 of the mobile power source 10-2 cooperate to realize the fixed connection between the mobile power source 10-1 and the mobile power source 10-2.

It is to be understood that the mechanical connection mechanism of the portable power source management device 20, the first mechanical connection mechanism and the second mechanical connection mechanism of the portable power source 10 are not limited to the forms of the first to third embodiments described above. For example, the portable power source management device 20 and the portable power source 10 are detachably connected by a snap, a screw-snap, a sliding groove-slider-snap. For example, the locking of the portable power source management device 20 and the portable power source 10 is realized by a buckle, and the firmness and reliability of the mechanical connection of the portable power source management device 20 and the portable power source 10 are further strengthened by screws.

In some embodiments, the mobile power management device 20 and the mobile power supply 10 each further include: a carrier signal generating circuit and a carrier signal receiving circuit. The carrier signal generating circuit of the portable power management device 20 generates a power carrier signal according to the information to be transmitted, and loads the carrier signal to the

bus

251 or 252. The information to be transmitted is for example activation signals and control signals etc. The carrier signal receiving circuit of the mobile power supply 10 can obtain the power carrier signal from the bus bars 151 and 152. The carrier signal generating circuit of the mobile power supply 10 generates a power carrier signal according to the monitoring information of the battery 110 reported by the battery control circuit 120, and loads the power carrier signal to the

bus

151 or 152. The carrier signal receiving circuit of the portable power supply management device 20 detects the power carrier signal transmitted from the portable power supply 10 from the bus bars 251 and 252. The portable Power supply management device 20 and the portable Power supply 10 communicate by a Power line Communication (powerline Communication) technique, and a Communication signal line and a Communication interface do not need to be provided.

In some embodiments, the mobile power management device 20 and the mobile power supply 10 communicate based on RFID.

In the scheme of the embodiment of the invention, the mobile power supply comprises a battery for supplying power to the external electric equipment, and the mobile power supply management device comprises a charging circuit and a discharging circuit for realizing charging and discharging of the battery in the mobile power supply. The charging circuit and the discharging circuit are provided separately from the battery. The mobile power supply and the mobile power supply management device are both provided with interface modules, so that the electrical connection between the mobile power supply and the mobile power supply management device is realized. Between portable power source and the portable power source management device, detachably mechanical connection between portable power source and the portable power source is convenient for portable power source system to reorganize. The plurality of mobile power sources may have different battery capacities and/or discharge powers. The number and the power of the mobile power supplies of the mobile power supply system can be adjusted according to requirements, different battery capacities and different discharge powers are combined, various application scenes are met, and the problem that each battery is provided with one charging circuit and one discharge circuit and only limited application scenes can be used is solved. Therefore, the mobile power supply is simplified in model, and design cost of a manufacturer is saved.

It should be noted that the terms "first" and "second" in the description of the present invention are used merely for convenience in describing different components or names, and are not to be construed as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It should be noted that, although the specific embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention should not be construed as being limited to the scope of the present invention. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the present invention as described in the appended claims.

The examples of the embodiments of the present invention are intended to briefly describe the technical features of the embodiments of the present invention, so that those skilled in the art can intuitively understand the technical features of the embodiments of the present invention, and the embodiments of the present invention are not unduly limited.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A mobile power supply, characterized in that the mobile power supply comprises:

a housing;

the first mechanical connecting mechanism is arranged on the shell and is used for being matched with a mechanical connecting structure of a previous-stage mobile power supply to mechanically connect the mobile power supply with the previous-stage mobile power supply; and

and the second mechanical connecting mechanism is arranged on the shell and is used for being matched with the mechanical connecting structure of the next-stage mobile power supply, so that the mobile power supply is mechanically connected with the next-stage mobile power supply.

2. The mobile power supply according to claim 1, wherein the first mechanical connection mechanism comprises a screw hole and a receiving hole, the second mechanical connection mechanism comprises a screw and a mounting protrusion, the screw hole of the mobile power supply is matched with the screw of the second mechanical connection mechanism of the upper mobile power supply, and the receiving hole of the mobile power supply is used for receiving the mounting protrusion of the second mechanical connection mechanism of the upper mobile power supply.

3. The mobile power supply according to claim 2, wherein the side wall of the casing is provided with an opening for exposing the cap portion of the screw, the first mechanical connection mechanism further includes a first protrusion located on the upper wall of the casing, the screw hole is provided on the first protrusion, the second mechanical connection mechanism further includes a second protrusion located on the lower wall of the casing, and when the mobile power supply is mechanically connected to the upper-stage mobile power supply, the first protrusion of the mobile power supply abuts against the second protrusion of the upper-stage mobile power supply.

4. The mobile power supply according to claim 1, wherein the first mechanical connection mechanism comprises a slider located on an upper wall of the housing, the second mechanical connection mechanism comprises a chute located on a lower wall of the housing, a first end of the chute is provided with a chute opening, a second end is provided with an end wall,

the sliding block of the mobile power supply is used for sliding into the sliding groove from the sliding groove opening of the upper-stage mobile power supply until the sliding groove is abutted against the end wall of the sliding groove, and the mobile power supply is mechanically connected with the upper-stage mobile power supply.

5. The mobile power supply according to claim 4, wherein a first end of the slider is disposed at a first side wall of the case, a second end of the slider is retracted by a predetermined distance relative to a second side wall of the case, the predetermined distance being a thickness of the end wall,

when the mobile power source is mechanically connected with the upper-stage mobile power source, the second end of the sliding block of the mobile power source is fixed with the end wall of the upper-stage mobile power source through screws, and the first end of the sliding block of the mobile power source is fixed with the side wall of the upper-stage mobile power source where the sliding groove opening is located through screws.

6. The mobile power supply of claim 1, wherein the second mechanical connection mechanism comprises a first catch, the first connection mechanism comprises a second catch disposed on an upper wall of the housing,

the second engaging member includes a base portion and a cap portion connected to the base portion, the cap portion of the second engaging member having a maximum width greater than a width of the base portion,

the first engaging member includes a base portion, a side wall connected to the base portion, and two arm portions, the first engaging member having a first accommodating space defined by the side wall and the two arm portions, the two arm portions having a second accommodating space therebetween,

the cap of the second engaging piece of the mobile power supply is held in the first holding space of the first engaging piece of the upper mobile power supply, and the cap of the second engaging piece of the mobile power supply is abutted by the two arm portions of the first engaging piece of the upper mobile power supply, thereby mechanically connecting the mobile power supply and the upper mobile power supply.

7. A mobile power management device, comprising:

a housing comprising an upper wall and a lower wall;

a charging circuit disposed within the housing;

a discharge circuit disposed within the housing;

the third interface module is arranged on the lower wall of the shell and is used for electrically connecting the mobile power supply management device with a mobile power supply; and

and the third mechanical connecting mechanism is used for being matched with the first mechanical connecting structure of the mobile power supply to mechanically connect the mobile power supply management device with the mobile power supply.

8. The mobile power management device according to claim 7, wherein the third mechanical connection mechanism comprises a screw, a lower wall of the housing of the mobile power management device is provided with a third protrusion and a screw hole penetrating through the third protrusion, and the screw of the third mechanical connection mechanism cooperates with the screw hole of the third protrusion and the screw hole of the first mechanical connection structure of the mobile power supply to mechanically connect the mobile power management device with the mobile power supply.

9. The mobile power management device of claim 7,

the third mechanical connection mechanism comprises a chute arranged on the lower wall of the shell, a chute opening is arranged at the first end of the chute, an end wall is arranged at the second end of the chute, and the chute is used for receiving a sliding block of the mobile power supply and mechanically connecting the mobile power supply management device with the mobile power supply;

alternatively, the third mechanical connection mechanism includes a first engaging member including a base portion, a side wall connected to the base portion, and two arm portions, the base portion of the second engaging member of the mobile power supply passes through a space between the two arm portions of the first engaging member of the mobile power supply management device, the cap portion of the second engaging member of the mobile power supply is accommodated in an accommodation space defined by the side wall and the two arm portions of the first engaging member of the mobile power supply management device, and the cap portion of the second engaging member of the mobile power supply is abutted by the two arm portions of the first engaging member of the mobile power supply management device, thereby mechanically connecting the mobile power supply management device and the mobile power supply.

10. A mobile power supply system, characterized in that the mobile power supply system comprises: the mobile power management device of any one of claims 7 to 9 and one or more mobile power sources of any one of claims 1 to 6, the third mechanical connection mechanism of the mobile power management device being adapted to cooperate with the first mechanical connection structure of the mobile power source of a next stage to mechanically connect the mobile power management device with the mobile power source of the next stage.