Energy storage capacity expansion mobile power supply

Abstract

The present application relates to a kind of energy storage capacity expansion mobile power, including the following components: at least two adjacent parallel operation power supply, the shell of one of at least two said parallel operation power supply is provided with locking area, another of at least two said parallel operation power supply is provided with the connecting area of locking connection with the locking area;Parallel operation limiting hole is provided on the locking area, parallel operation locking mechanism is provided on the connecting area, and the parallel operation locking mechanism includes pull rod mechanism, parallel operation limiting column is provided on the pull rod mechanism, the parallel operation limiting column can be protruded from the connecting area with the movement of the pull rod mechanism, and the parallel operation limiting hole is clamped, to lock two adjacent said parallel operation power supply.The main machine and expansion package in the present application are convenient to carry and operate, safe and reliable, high-strength overall structure design, and the matching mode of main machine and expansion package enriches user selection.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of energy storage capacity expansion mobile power supply, belong to lithium ion battery technical field. BACKGROUND

[0002] Lithium ion battery refers to the lithium ion intercalation compound as positive material battery, it has the characteristics of large energy density, average output voltage is high, self-discharge is small, no memory effect, cycle performance is superior, fast charge and discharge, and lithium ion battery output power is large, service life is long, no environmental pollution, is called green battery.Lithium ion battery at present stage has been widely used in mobile phone, notebook computer, portable power tool etc.Lithium ion battery generally comprises shell and the shell and received by shell's electric core winding body and electrolyte, and the electric core winding body is wound by positive and negative pole piece and diaphragm, and positive and negative pole piece is also connected with positive and negative pole lug respectively.

[0003] In recent years, the increasing popularity of mobile phones, tablet computers, unmanned aerial vehicles and other intelligent terminals, the rapid development of self-driving tourism and outdoor sports, the increasing demand for outdoor power supply, and the intensification of global climate change and frequent natural disasters have seriously affected the stability of power supply, and portable energy storage power supply with large capacity and expandable battery modules has gradually become an important spare in daily life.

[0004] At present, multiple energy storage power supplies are generally combined by using connecting terminals and connecting lines, or using sheet metal to make a box, and setting sliding rails and sliding grooves on the box, the sliding rails and sliding grooves are fixed on the box by bolts or fixed supports, and the energy storage power supplies are stacked and then connected and fixed by bolts and fixed baffle plates.These traditional methods have the disadvantages of inconvenience in carrying, difficulty in assembly, high cost of box materials, etc. SUMMARY

[0005] To solve the above problems, the present application provides an energy storage capacity expansion mobile power supply, which effectively solves the mechanical reliability and compact structure of the whole machine, has low material cost, simple operation, stable installation, and more simple appearance, and users can also freely select battery capacity through expansion package.

[0006] To achieve the above purpose, the present application adopts the following technical solutions:

[0007] An energy storage capacity expansion mobile power supply comprises the following components:

[0008] At least two adjacent parallel power supplies, at least one of the parallel power supplies is provided with a locking area on the shell, and the other parallel power supply is provided with a connecting area connected with the locking area;

[0009] The locking area is provided with a parallel machine limiting hole, the connecting area is provided with a parallel machine locking mechanism, the parallel machine locking mechanism comprises a pull rod mechanism, the pull rod mechanism is provided with a parallel machine limiting column, the parallel machine limiting column can protrude from the connecting area with the movement of the pull rod mechanism, and is clamped with the parallel machine limiting hole to lock the adjacent two parallel machine power supplies.

[0010] The connecting area is further provided with a second parallel machine connecting buckle and a parallel machine guide rail, and the locking area is further provided with a first parallel machine connecting buckle matched with the second parallel machine connecting buckle and a parallel machine sliding groove matched with the parallel machine guide rail.

[0011] The connecting area is further provided with a parallel machine terminal female seat and a female seat protection sliding block for protecting the parallel machine terminal female seat, and the locking area is further provided with a parallel machine terminal male seat and a male seat protection sliding block for protecting the parallel machine terminal male seat; during the stacking of the two parallel machine power supplies, after the parallel machine sliding groove matches the parallel machine guide rail, the parallel machine limiting column is inserted into the parallel machine limiting hole, at the same time, the male seat protection sliding block interacts with the female seat protection sliding block, the male seat protection sliding block is pushed to move upward, and the female seat protection sliding block is moved downward, so that the parallel machine terminal male seat is connected with the parallel machine terminal female seat.

[0012] The connecting area is further provided with a second guide rod, the second guide rod is arranged on both sides of the parallel machine terminal female seat, and the second guide rod is provided with a female seat protection sliding block spring.

[0013] The locking area is further provided with a first guide rod, the first guide rod is arranged on both sides of the parallel machine terminal male seat, and the first guide rod is provided with a male seat protection sliding block spring.

[0014] The connecting area is further provided with a second guide rod, the second guide rod is arranged on both sides of the parallel machine terminal female seat, and the second guide rod is provided with a female seat protection sliding block spring.

[0015] The connecting area is further provided with a second guide rod, the second guide rod is arranged on both sides of the parallel machine terminal female seat, and the second guide rod is provided with a female seat protection sliding block spring.

[0016] The energy storage capacity expansion mobile power, preferably, the pull rod mechanism further comprises a pull rod buckle, the pull rod buckle is fixed on the pull rod through a pull rod fixing rod, a pull rod buckle spring is sleeved on the pull rod fixing rod, and the pull rod is reset.

[0017] The energy storage capacity expansion mobile power, preferably, the pull rod mechanism further comprises a limiting guide rail and a limiting column slider, the pull rod is fixed on the connecting area through the limiting guide rail, and the parallel machine limiting column is fixed on the connecting area through the limiting column slider.

[0018] The portable energy storage capacity expansion mobile power, preferably, the wind baffle is arranged on one of the at least two parallel machine power sources, and is assembled at a fan and an air inlet of the parallel machine power source, so as to form an independent air inlet channel.

[0019] The energy storage capacity expansion mobile power has the following advantages due to the above technical scheme.

[0020] 1、The energy storage capacity expansion mobile power realizes the capacity expansion of the main machine by arranging the parallel machine lock buckle mechanism on the expansion bag, and arranging the lock buckle area matched with the parallel machine lock buckle mechanism on the main machine.

[0021] 2、The energy storage capacity expansion mobile power is provided with the magnetic flip cover on the left side shell and the right side shell, the magnetic flip cover is internally provided with a magnet, the left side shell and the right side shell are provided with a magnet at a position corresponding to the magnet embedded in the magnetic flip cover, the magnetic flip cover is adsorbed together with the magnets embedded in the two side plastic shell panels through the internal embedded magnet when protection, and the magnetic flip cover is adsorbed together with the magnet embedded in the corresponding position of the plastic shell after being opened, the magnetic flip cover is used for protecting the input and output functional components on the left and right side shells, and has the advantages of beauty and practicability.

[0022] 3、The energy storage capacity expansion mobile power is provided with the wind baffle at the fan and the air inlet of the main machine, so as to form an independent air inlet channel and ensure that the circulating hot air in the machine is not sucked into the fan to affect heat dissipation.

[0023] 4、The main machine and the expansion bag in the energy storage capacity expansion mobile power are convenient to carry and operate, safe and reliable, and have high-strength overall structure design, the shell interface is practical and reliable, the parallel machine capacity expansion mode is convenient and reliable, user experience is improved, and the matching mode of the main machine and the expansion bag enriches user selection. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The overall schematic view of the expansion bag provided by an embodiment of the energy storage capacity expansion mobile power is shown in the figure.

[0025] Figure 2 The schematic view of the parallel machine lock buckle mechanism in the expansion bag provided by the embodiment of the energy storage capacity expansion mobile power is shown in the figure.

[0026] Figure 3 An exploded view of the upper shell of the expansion package provided for this embodiment of the application;

[0027] Figure 4 An overall schematic view of the host provided for this embodiment of the application;

[0028] Figure 5 An overall schematic view of the host after the magnetic flip cover is opened provided for this embodiment of the application;

[0029] Figure 6 A schematic view of the lower shell of the host provided for this embodiment of the application;

[0030] Figure 7 An exploded view of the lower shell of the host provided for this embodiment of the application;

[0031] Figure 8 A schematic view of the electrical module of the host provided for this embodiment of the application;

[0032] Figure 9 A schematic view of the host and the expansion package during the merging process provided for this embodiment of the application;

[0033] Figure 10 A schematic view of the host and the expansion package after the merging process is completed provided for this embodiment of the application;

[0034] Figure 11 An assembled cross-sectional view of the host and the expansion package after the merging process is completed provided for this embodiment of the application;

[0035] Figure 12 A schematic view of the host and multiple expansion packages after the merging process is completed provided for this embodiment of the application;

[0036] The various marks in the drawings are as follows:

[0037] 1 - handle; 2 - upper shell; 3 - lower shell; 4 - front shell; 5 - rear shell; 6 - panel; 7 - magnetic flip cover; 8 - merging slot; 9 - merging terminal female seat; 10 - female seat protection sliding block; 11 - first merging connection buckle; 12 - merging limiting hole; 13 - framework; 14 - second merging connection buckle; 15 - merging terminal female seat; 16 - female seat protection sliding block; 17 - merging guide rail; 18 - pull rod; 19 - merging limiting column; 20 - push plate; 21 - push plate sliding slot; 22 - limiting guide rail; 23 - limiting column spring; 24 - battery module; 25 - wind deflector; 26 - BMS protection plate; 27 - inverter plate; 28 - MPPT plate; 29 - main control plate; 30 - DC-DC plate; 31 - merging terminal cover plate; 32 - first guide rod; 33 - female seat protection sliding block spring; 34 - key; 35 - key spring; 36 - pull rod buckle; 37 - pull rod buckle spring; 38 - second guide rod; 39 - female seat protection sliding block spring. DETAILED DESCRIPTION

[0038] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application are clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0039] Unless otherwise defined, the technical terms or scientific terms used in the present application shall have the meanings commonly understood by those skilled in the art to which the present application belongs. The terms "first", "second", "third", "fourth" and the like used in the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms "include" or "contain" and the like mean that the components or objects before the terms cover the components or objects listed after the terms and their equivalents, and do not exclude other components or objects. The terms "connect" or "connected" and the like are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect.

[0040] It should be noted that the at least two parallel machine power sources mentioned in the present application, when there are two parallel machine power sources, one of the parallel machine power sources can be a host power source as shown in Figure 4 , and the other parallel machine power source can be an expansion package power source as shown in Figure 3 At this time, the host power source is provided with a locking area, and the expansion package power source is provided with a connecting area. When there are more than two parallel machine power sources, one of the parallel machine power sources can be a host power source as shown in Figure 4 , and the other parallel machine power sources can be expansion package power sources as shown in Figure 3 At this time, the host power source is provided with a locking area, one of the expansion package power sources is provided with a locking area and a connecting area, and the other expansion package power source is provided with a connecting area, so as to realize the locking of the locking area on one of the expansion package power sources and the connecting area of the other expansion package power source, the locking of the locking area on the host power source and the connecting area on one of the expansion package power sources, and so on. Through the cooperation of the locking area and the connecting area provided on different parallel machine power sources, at least two parallel machine power sources can be arranged adjacently and locked in parallel.

[0041] On the other hand, the locking area and the connecting area mentioned in the present application are not limited to being arranged on the upper and lower shells of the parallel machine power source, but can also be arranged on other areas of the shell. As long as the parallel connection is met, they can be arranged at different positions on the shell at will to realize locking connection with different effects, which can be arranged at will according to actual needs. The present application only explains the stacking locking.

[0042] The application is described by two parallel power supplies, one of which can be a host power supply as shown in Figure 4 , and the other can be an expansion package power supply as shown in Figure 3 . The host power supply is provided with a locking area, and the expansion package power supply is provided with a connecting area, and both the locking area and the connecting area are arranged on the upper and lower shells of the parallel power supply.

[0043] As shown in Figure 1 , 2 , the expansion package power supply provided by the application is provided with a parallel locking mechanism, which includes a pull rod 18 and a push plate 20 slidingly sleeved on the pull rod 18. The pull rod 18 is assembled on the upper shell and / or the lower shell of the expansion package body through a limiting guide rail 22. The push plate 20 is provided with a push plate sliding groove 21, and the upper shell and / or the lower shell of the expansion package power supply is assembled with a telescopic parallel limiting column 19 matched with the push plate sliding groove 21. In the application, the position of the parallel locking mechanism is not limited to being arranged on the upper and lower shells of the expansion package body, and the parallel locking mechanism can also be arranged on the other four side shells of the expansion package power supply. In this way, the stacking mode of the host power supply and the expansion package power supply can be vertical stacking or horizontal stacking. Further, the parallel locking mechanism can be arranged on multiple side shells of the expansion package power supply, and the locking area (parallel limiting hole 12) can be arranged on multiple side shells of the host power supply, so as to realize stacking expansion in multiple directions. In this way, the matching mode of the host power supply and the expansion package power supply is various, and the user can freely select multiple combination modes.

[0044] Further, the connecting area of the expansion package power supply is further provided with a second parallel connection buckle 14 and a parallel guide rail 17. The second parallel connection buckle 14 is a protruding block with a groove, and four flanges are symmetrically arranged on both sides of the protruding block. Two flanges are symmetrically arranged in the groove, and the other two flanges are symmetrically arranged outside the groove, close to the parallel guide rail 17. The parallel guide rail 17 is a trapezoidal guide rail, that is, its cross section is trapezoidal.

[0045] Further, the connecting area of the expansion package power supply is further provided with a parallel terminal female seat 15 and a female seat protection sliding block 16 for protecting the parallel terminal female seat 15. The parallel terminal female seat 15 is located in the groove of the protruding block and at the end away from the pull rod 18. Specifically, as shown in Figure 3 , 9, 11, during the stacking process, the handle 1 of the handheld host power supply pushes the host power supply, the host power supply bottom parallel slot 8 matches the parallel guide rail 17 on the power supply of the expansion package, after the matching, the vertical movement of the host power supply is limited, the limiting column spring 23 pushes the parallel limiting column 19 to move upward, the parallel limiting column 19 is inserted into the parallel limiting hole 12, the horizontal movement of the host is limited, at the same time, the male seat protection slider 10 and the female seat protection slider 16 interact, the male seat protection slider 10 moves upward, the female seat protection slider 16 moves downward, the male seat 9 and the female seat 15 are connected, and the electrical connection is completed.

[0046] As shown in Figure 3 , it is an exploded view of the upper shell of the power supply of the expansion package. The parallel limiting column 19 is fixed on the upper shell of the power supply of the expansion package through the limiting column slider, after the host power supply is stacked and matched, the parallel limiting column 19 is inserted into the parallel limiting hole 12 of the lower shell 3 of the host power supply, and the horizontal movement of the host is limited. The limiting column spring 23 is sleeved on the limiting column slider, so that the parallel limiting column 19 can move upward and reset.

[0047] The pull rod mechanism includes a pull rod 18, a limiting guide rail 22, a push plate 20, a limiting column slider, a key 34 and a pull rod buckle 36. The pull rod 18 passes through the hole of the limiting guide rail 22, the limiting guide rail 22 fixes the pull rod 18 on the upper shell of the power supply of the expansion package, and is used for guiding when the pull rod 18 is stretched and retracted. The push plate 20 is sleeved on the pull rod 18, when the pull rod 18 is pressed, the pull rod 18 pushes the push plate 20 to move together, and the force is transmitted to the limiting column slider (the limiting column slider is used for fixing the parallel limiting column 19 on the shell of the power supply of the expansion package, and the force of pressing the pull rod 18 can be transmitted to the parallel limiting column 19, so that the parallel limiting column 19 moves downward). The key 34 is fixed on the pull rod 18 through the key fixing rod, the key spring 35 is sleeved on the key fixing rod, so that the key 34 moves upward and resets, when the key 34 is pressed downward, the pull rod 18 transmits the force to the pull rod buckle 36, the pull rod buckle 36 moves downward, the pull rod 18 is separated from the pull rod buckle 36, and the unlocking and separation of the energy storage power supply are realized. The pull rod buckle 36 is fixed on the pull rod 18 through the pull rod buckle fixing rod, which is used for limiting the outward stretching and retraction of the pull rod 18, and the pull rod buckle spring 37 is sleeved on the pull rod buckle fixing rod, so that the pull rod 18 moves upward and resets.

[0048] As shown in Figure 3 , the upper shell of the power supply of the expansion package is provided with a guide hole for accommodating the second guide rod 38, the second guide rod 38 is sleeved with the female seat protection slider spring 39, so that the female seat protection slider 16 moves upward and resets, the female seat protection slider 16 is used for protecting the female seat 15 of the parallel terminal from being exposed, and preventing the metal terminal from being touched and short-circuited by mistake.

[0049] As shown in Figure 4 , 6As shown, the energy storage expansion mobile power supply provided by the present invention includes a portable energy storage expansion pack power supply and a host power supply. The host power supply is provided with a locking area that is compatible with the parallel lock mechanism on the expansion pack power supply. The locking area is a parallel limit hole 12 that is compatible with the parallel limit column 19. The host power supply includes a host housing, and the host housing is composed of an upper shell 1, a lower shell 3, a front shell 4, a rear shell 5, a left side shell (to achieve input) and a right side shell (to achieve output). A handle 1 is provided on the upper shell 1 to facilitate user carrying. A magnetic flip cover 7 is provided on the left side shell and / or the right side shell. Magnets are installed in the magnetic flip cover 7. Magnets are installed at the corresponding positions of the left side shell and / or the right side shell and the embedded magnets of the magnetic flip cover 7. When protected, the magnetic flip cover 7 is adsorbed together with the embedded magnets in the corresponding positions of the plastic shell panels on both sides through the internal embedded magnets; after opening, the magnetic flip cover 7 is adsorbed together with the embedded magnets in the corresponding positions of the plastic shell (such as Figure 4 Magnetic flip covers 7 protect the input and output components on the left and right side shells, combining aesthetics with practicality. A panel 6 is provided on the front shell 4 for display, control, and output. Foot pads are provided on the lower shell 3 to stabilize the console.

[0050] like Figure 6 As shown, the lower shell 3 is provided with a parallel limit hole 12 adapted to the parallel limit column 19. In the process of merging the host power supply and the expansion power pack, the parallel limit column 19 (as shown in FIG. Figure 1 、 2 As shown) snap into the parallel limit hole 12 (as shown Figure 9 The lower shell 3 is provided with two trapezoidal chutes (i.e., parallel chutes 8), which are discontinuous in the middle, effectively reducing friction during sliding and making stacking more labor-saving. Four flanges are symmetrically provided on the left and right sides of the lower shell 3.

[0051] Furthermore, the lower housing 3 is provided with a first parallel connection latch 11 that mates with the second parallel connection latch 14, and a parallel slide 8 that mates with the parallel rail 17. The parallel rail 17 can also be provided on the lower housing 3 of the main power supply, while the parallel slide 8 is provided on the upper housing of the expansion pack power supply. The first parallel connection latch 11 comprises three raised blocks, two of which are located at the end away from the parallel terminal male socket 9 and have grooves to accommodate the flange located outside the groove of the second parallel connection latch 14. The third raised block is a U-shaped block that surrounds the parallel terminal male socket 9 and is compatible with the grooves around the parallel terminal female socket 15.

[0052] Furthermore, the lower housing 3 is provided with a male parallel terminal block 9 and a male block protection slider 10 for protecting the male parallel terminal block 9. During the merging process of the main power supply and the expansion pack power supply, after the main power supply mates with the parallel guide rail 17 on the expansion pack power supply through the parallel slide 8 at its bottom, the male block protection slider 10 and the female block protection slider 16 interact with each other, pushing the male block protection slider 10 upward and the female block protection slider 16 downward, allowing the male parallel terminal block 9 to mate with the female parallel terminal block 15, completing the electrical connection. Simultaneously, the first parallel connection buckle 11 at the bottom of the main power supply engages with the second parallel connection buckle 14 on the expansion pack power supply.

[0053] like Figure 7 As shown, it is an exploded view of the lower shell 3 of the main power supply. The parallel terminal male socket 9 is fixed to the lower shell 3 of the main power supply through the parallel terminal cover 31, which also protects the internal components and prevents foreign matter from entering. The lower shell 3 of the main power supply is provided with a guide hole to accommodate the first guide rod 32. The first guide rod 32 is sleeved with a male socket protection slider spring 33, which can move the male socket protection slider 10 upward and reset. The male socket protection slider 10 is used to protect the parallel terminal male socket 9 from being exposed, preventing the metal terminals from accidentally touching or short-circuiting. The parallel terminal male socket 9 is set at one end of the lower shell 3 and is surrounded by a U-shaped protrusion. The parallel terminal female socket 15 is set in the groove of the second parallel connection buckle 14. The shape of the groove is adapted to the U-shaped protrusion. In this way, during the stacking process, the U-shaped protrusion can be placed in the groove of the second parallel connection buckle 14, so that the parallel terminal male socket 9 and the parallel terminal female socket 15 contact each other, completing the electrical connection.

[0054] like Figure 8 As shown, the host power supply also includes a frame 13 and an electrical module mounted on the frame 13. The electrical module includes a battery module 24 and a PCB (Printed Circuit Board). The PCB includes a main control board 29, an inverter board 27, an MPPT board 28 (Maximum Power Point Tracking), a BMS board 26 (Battery Management System), a DC-DC board 30 (Direct Current), and a FACE board. The battery module 24, main control board 29, inverter board 27, MPPT board 28, BMS board 26, and DC-DC board 30 are secured to the frame 13 with screws, while the FACE board is secured to the panel 6. The frame 13 is secured to the upper shell 2 and lower shell 3 with screws. The frame 13 is a sheet metal bracket, a key component of the host's strength and rigidity, and is used to secure the battery module 24 and PCB. The electrical module serves as the host's energy storage component, controlling the operation of the entire device, converting DC to AC, and powering AC / DC devices.

[0055] As shown in Figure 6 , 8 , the battery module 24 is assembled on the lower shell 3, and the PCB board such as the inverter plate 27 is fixed on the periphery of the battery module 24. The upper shell 2, the lower shell 3, the front shell 4, the left side shell, the right side shell, the rear shell 5 and the panel 6 form a complete shell and are connected with the framework 13, forming an integrated frame with the side support plate as the main connecting body, which has high strength and rigidity.

[0056] As shown in Figure 8 , the main machine power supply further comprises a wind deflector 25 assembled at the fan and the air inlet (provided on the rear shell 5) of the main machine power supply to form an independent air inlet channel, so that the circulating hot air in the machine cannot be sucked into the fan to affect heat dissipation.

[0057] The application adopts a novel expansion mode, and the merging and splitting process of the main machine and the expansion package is as follows:

[0058] As shown in Figure 9 , 11 , the merging process of the main machine power supply and the expansion package power supply is as follows: holding the handle 1 of the handheld main machine power supply, pushing the main machine power supply, and after the bottom of the main machine power supply and the merging guide rail 17 on the expansion package power supply are matched, the movement of the main machine power supply in the vertical direction is limited, the limiting column spring 23 pushes the merging limiting column 19 to move upward, the merging limiting column 19 is inserted into the merging limiting hole 12, the horizontal movement of the main machine is limited, at the same time, the male seat protection sliding block 10 and the female seat protection sliding block 16 interact, the male seat protection sliding block 10 is pushed to move upward, the female seat protection sliding block 16 is pushed to move downward, the merging terminal male seat 9 and the merging terminal female seat 15 are connected, and the electrical connection is completed; at the same time, the first merging connection buckle 11 at the bottom of the main machine power supply and the second merging connection buckle 14 on the expansion package power supply are buckled. The elastic buckle on the merging limiting column 19 is buckled into the merging limiting hole 12, the physical structure connection is realized, and the merging connection of the main machine power supply and the expansion package power supply is completed.

[0059] The splitting process of the main machine power supply and the expansion package power supply is as follows: pushing the button 34 on the pull rod 18 inward, driving the push plate 20 to move, the push plate sliding groove 21 contacts the merging limiting column 19, the limiting column spring 23 is compressed to drive the merging limiting column 19 to move downward, and the pull rod 18 is pushed to the bottom. At this time, the merging limiting column 19 is sunk into the upper shell of the expansion package, and at this time the main machine power supply can be pulled out.

[0060] In the application, the upper shell and the lower shell of the power supply of the expansion package can be provided with a parallel connection lock mechanism, and multiple expansion package power supplies are connected through this way. The main power supply, the expansion package power supply are stacked and locked, and the parallel connection terminal male seat 9 and the parallel connection terminal female seat 15 are protected by the protection sliding block, which can prevent the metal terminal from being exposed and causing electrical short circuit. When the main power supply and the expansion package power supply are stacked and locked, the protection sliding block can be automatically opened, the parallel connection terminal female seat 15 is inserted into the parallel connection terminal male seat 9, and electrical connection is realized. The main power supply and the expansion package power supply are connected through the parallel connection terminal male seat 9 and the parallel connection terminal female seat 15, which can save external connection terminals and wiring, and make the appearance more simple and beautiful. After the main power supply and the expansion package power supply are stacked and matched, they are automatically locked, without the need for bolt or support connection and fixation. The main machine and the expansion package can be unlocked by pressing the pull rod 18, and the stacking is convenient.

[0061] The second guide rod 38 is arranged on both sides of the parallel connection terminal female seat 15, and the connector male seat is provided with a guide groove in correspondence, the guide rod is in contact with the guide groove during connection to guide the direction, and the connector female seat can be automatically adjusted in the horizontal direction, which can avoid the connection failure caused by the misalignment of the connection terminal or the collision of the metal terminal during sliding.

[0062] After the energy storage power supply is stacked and matched, the parallel connection limiting column 19 automatically pops out to lock the upper and lower parts, and after locking, the upper and lower parts form a whole, which is convenient for carrying. The pull rod 18 can be used as a handle and also as an energy storage power supply unlocking and separating mechanism. The pull rod 18 can be extended outward by pressing the key 34 on the pull rod 18, which is convenient for carrying the energy storage power supply. The pull rod 18 drives the parallel connection limiting column 19 to move by pressing the pull rod 18, and the energy storage power supply is unlocked and separated.

[0063] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A mobile power supply with energy storage and expansion, characterized in that: Includes the following components: At least two adjacent parallel power supplies, at least one of the two parallel power supplies having a locking region provided on its housing, and at least another of the two parallel power supplies having a connection region that is lockedly connected to the locking region; The locking area is provided with a parallel limiting hole (12), the connection area is provided with a parallel locking mechanism, the parallel locking mechanism is provided on the upper and lower shells or other four side shells of the expansion pack body, the parallel locking mechanism includes a pull rod mechanism, the pull rod mechanism is provided with a parallel limiting column (19), the parallel limiting column (19) can protrude from the connection area as the pull rod mechanism moves, and is engaged with the parallel limiting hole (12) to lock the two adjacent parallel power supplies; The connection area is also provided with a second parallel connection buckle (14) and a parallel guide rail (17); the locking area is also provided with a first parallel connection buckle (11) adapted to the second parallel connection buckle (14) and a parallel slide groove (8) adapted to the parallel guide rail (17); The connection area is also provided with a parallel terminal female seat (15) and a female seat protection slider (16) for protecting the parallel terminal female seat (15), and the locking area is also provided with a parallel terminal male seat (9) and a male seat protection slider (10) for protecting the parallel terminal male seat (9); during the stacking process of the two parallel power supplies, after the parallel slide (8) is matched with the parallel guide rail (17), the parallel limit column (19) is inserted into the parallel limit hole (12), and at the same time, the male seat protection slider (10) interacts with the female seat protection slider (16), pushing the male seat protection slider (10) to move upward and the female seat protection slider (16) to move downward, so that the parallel terminal male seat (9) is docked with the parallel terminal female seat (15).

2. The energy storage and expansion mobile power supply according to claim 1, characterized in that: A second guide rod (38) is also provided on the connection area. The second guide rod (38) is provided on both sides of the parallel terminal female seat (15). A female seat protection slider spring (39) is sleeved on the second guide rod (38) for moving and resetting the female seat protection slider (16).

3. The energy storage and expansion mobile power supply according to claim 1, characterized in that: A first guide rod (32) is also provided on the locking area. The first guide rod (32) is provided on both sides of the parallel terminal male seat (9). A male seat protection slider spring (33) is sleeved on the first guide rod (32) for moving and resetting the male seat protection slider (10).

4. The energy storage and expansion mobile power supply according to claim 1, characterized in that: The pull rod mechanism includes a pull rod (18) and a push plate (20) slidably mounted on the pull rod (18); a push plate slide groove (21) is provided on the push plate (20); and the push plate slide groove (21) is adapted to the parallel machine limit column (19).

5. The energy storage and expansion mobile power supply according to claim 4, characterized in that: The pull rod mechanism further includes a button (34), which is fixed to the pull rod (18) via a button fixing rod. A button spring (35) is sleeved on the button fixing rod for resetting the button (34) after movement.

6. The energy storage and expansion mobile power supply according to claim 4, characterized in that: The pull rod mechanism further comprises a pull rod buckle (36), wherein the pull rod buckle (36) is fixed to the pull rod (18) via a pull rod fixing rod, and a pull rod buckle spring (37) is sleeved on the pull rod fixing rod for resetting the pull rod (18) after movement.

7. The energy storage and expansion mobile power supply according to claim 4, characterized in that: The pull rod mechanism further comprises a limiting guide rail (22) and a limiting column slider; the pull rod (18) is fixed to the connection area via the limiting guide rail (22); and the parallel machine limiting column (19) is fixed to the connection area via the limiting column slider.

8. The energy storage and expansion mobile power supply according to claim 1, characterized in that: A windshield (25) is provided on at least one of the two parallel power supplies and is assembled at the fan and air inlet of the parallel power supply to form an independent air inlet channel.

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