A parallel charging rechargeable battery pack

Abstract

The present invention discloses a parallel-chargeable rechargeable battery pack, specifically relating to the field of electric energy storage technology, comprising a housing, a controller, a plurality of distribution storage batteries, a slide frame, and a saturated current cutoff mechanism; wherein the saturated current cutoff mechanism comprises a transmission screw, a drive motor, a socket block, a guide slot frame, two slot bodies, a connecting shaft, a parallel charging terminal, an electrode column, and a capacitance measurement sensor. The present invention, through the saturated current cutoff mechanism, has the advantage of timely eliminating the problem of repeated charging of saturated distribution storage batteries charged in parallel, not only reducing energy consumption, but also reducing the number of micro-recharge cycles of the distribution storage batteries, significantly improving the service life of the parallel-charged battery pack, thereby solving the problem of difficulty in timely eliminating repeated charging of saturated parallel-charged battery packs, which not only consumes energy but also affects the service life of the parallel-charged battery pack.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy storage, and more particularly to a parallel-charged rechargeable battery pack. Background Art

[0002] In power supply and energy storage systems, parallel charging of rechargeable battery packs has multiple uses, primarily increasing the total capacity of the battery pack. Parallel connection involves connecting the positive terminals of multiple battery packs to each other, and the negative terminals to each other, forming a parallel battery pack. In this connection, the current is divided between the individual battery packs, while the voltage remains constant. Therefore, parallel charging can significantly increase the total capacity of the battery pack, meaning the system can store more energy.

[0003] A search of existing public documents revealed that patent publication number CN103532191A discloses a dual-battery charging system and method for a vacuum cleaner. This technology enables simultaneous charging of two parallel battery packs, improving charging efficiency. The invention also discloses a corresponding charging control method that detects the voltage of the two battery packs, enabling simultaneous charging of both battery packs using a constant current followed by a constant voltage method to ensure charging efficiency and charge saturation. When the voltage difference between the two battery packs exceeds a set voltage, the charging current is adjusted to balance the charging time of the two battery packs. However, this technology still has the following problems.

[0004] During the power supply storage process, the rechargeable battery packs need to be charged in parallel. During the use of each battery pack, the energy storage capacity of the battery pack is discrete due to aging differences. The capacity of each battery pack is different, which causes an imbalance in the charging progress. The fully charged battery is affected by line loss and the energy consumption of the charging equipment. The reverse energy consumption requires micro-recharge. The undercharged battery is continuously charged, forming a vicious cycle of replenishment and loss. It is difficult to eliminate the problem of repeated charging in time for the saturated battery packs charged in parallel. It not only consumes energy, but also affects the service life of the parallel charged battery packs. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: a parallel charging rechargeable battery pack, comprising a shell and a controller, wherein a plurality of distribution storage batteries are fixedly installed inside the shell, one end of each of the distribution storage batteries is fixedly connected to a slide frame, and a saturation cut-off mechanism is provided inside the slide frame; the saturation cut-off mechanism includes a transmission screw rotatably connected to the inside of the slide frame, and a drive motor is fixedly installed on one side of the inner wall of the slide frame, the drive motor is used to drive the rotation of the transmission screw, the outer wall of the transmission screw is threadedly connected to a socket block, and a guide groove frame is fixedly installed on one side of the socket block, and two grooves are provided inside the guide groove frame, and the inner wall of each groove body is slidably connected to a connecting shaft; one end of each connecting shaft is fixedly connected to a parallel charging terminal, and an electrode column is slidably installed on the inner wall of the parallel charging terminal, and a capacitance measurement sensor is fixedly installed on one end of the distribution storage battery and near its top corner.

[0006] Preferably, the guide trough frame and the sleeve block are both slidably connected to the sliding frame, and the two trough bodies are symmetrically arranged about the middle of the guide trough frame; the capacitance measurement sensor and the drive motor are both electrically connected to the controller, and the two electrode columns are both fixedly connected to the distribution storage battery. A distance sensor is fixedly connected to one side of the guide trough frame, and two support rings are fixedly connected to the outer wall of the connecting shaft. The two support rings are symmetrically arranged about the guide trough frame and are both slidably connected to the guide trough frame; the distance sensor is electrically connected to the controller. A support sleeve block is fixedly installed at one end of the electrode column, and the inner wall of the support sleeve block is slidably connected to the guide rod. The outer wall of the support sleeve block is slidably connected to the sliding support frame, and the two sliding support frames are fixedly connected to the distribution storage battery, and the sliding support frame is fixedly connected to the guide rod.

[0007] When this technology is in use, if the capacitance measurement sensor detects saturation, the controller immediately activates the drive motor, which drives the transmission screw to rotate. The sleeve block drives the guide slot frame to the right, and the slot body drives the connecting shaft upward, while the lower connecting shaft simultaneously moves downward. The connecting shaft causes the parallel charging terminal to move upward, and the parallel charging terminal is no longer located between the two insulating end caps. This separates the parallel charging terminal from the electrode column, thereby achieving saturation current interception operation for the electrode column.

[0008] Preferably, two micro electric cylinders are provided on one side of the sliding frame; the micro electric cylinders are fixedly connected to the power distribution storage battery, the output end of each micro electric cylinder is fixedly connected to a linkage guide frame, the inner wall of the linkage guide frame is slidably connected to two docking shafts, one end of each docking shaft is fixedly installed with a docking slider, the upper surface of the docking slider is fixedly connected with an insulating isolation side cover, and one end of the insulating isolation side cover is fixedly installed with an insulating isolation end cover.

[0009] The insulating side cover and docking slider are both slidably connected to the distribution storage battery. The insulating end cover is slidably connected to the electrode column. A pressure sensor is plugged into the inner wall of the insulating side cover. The micro-electric cylinder and pressure sensor are both electrically connected to the controller. A linkage ring is slidably connected to one side of the linkage guide frame and fixedly connected to the docking shaft. A guide frame is provided below the electrode column. The guide frame is fixedly connected to the distribution storage battery. The docking slider is slidably connected to the guide frame. The two docking shafts are symmetrically arranged about the center of the linkage guide frame and slidably connected to the docking slider. The vertical cross-section of the two docking shafts is circular. The insulating end cover and insulating side cover are both made of ceramic, and the vertical cross-section of the insulating side cover is arc-shaped. The two insulating end covers are symmetrically arranged about the center of the linkage guide frame and have a semicircular vertical cross-section.

[0010] When this technology is in use, the two exposed electrode columns may experience self-discharge. The micro-electric cylinder pushes the linkage guide frame, which in turn causes the two docking shafts to slide, bringing the two docking shafts closer together. The two docking slides move closer together along the inner wall of the guide frame. Two insulating side covers insulate the outer walls of the electrode columns to prevent continuous self-discharge from causing unsaturated capacitance in the distribution storage battery, thus avoiding the need for micro-recharges. Simultaneously, two insulating end covers insulate the ends of the electrode columns.

[0011] Preferably, the other end of the parallel charging terminal is fixedly connected to a parallel charging cable bank, and an insulating support bar is fixedly installed on the lower surface of the parallel charging cable bank; one end of the parallel charging cable bank is fixedly connected to a contact terminal, and a connecting terminal is slidably connected to the lower surface of the contact terminal, and the connecting terminal and the insulating support bar are slidably connected; one end of the connecting terminal is installed with a parallel charging circuit board, and multiple connecting terminals are fixedly connected to the parallel charging circuit board. Two charging sockets are fixedly installed on the outer wall of the shell, and both charging sockets are electrically connected to the parallel charging circuit board. The controller is located below the charging socket and is fixedly connected to the shell. The insulating support bar is fixedly connected to the parallel charging terminal, and the insulating support bar is used to support the parallel charging cable bank. A gap is provided between the contact terminal and the parallel charging circuit board.

[0012] When this technology is in use, when the parallel charging terminal moves upward, the parallel charging cable will also move upward. The insulating support bar can support the parallel charging cable, and the contact terminal and the connection terminal are separated synchronously to prevent the parallel charging circuit board from continuing to supply power to the parallel charging cable and the contact terminal.

[0013] Technical effects and advantages of the present invention:

[0014] The present invention uses a saturated current intercepting mechanism. When the capacitance measuring sensor detects that the capacitance is saturated, the transmission screw drives the socket block to move right under the action of the thread transmission force, and the guide groove frame causes the two groove bodies to move right synchronously. The groove body drives the connecting shaft to move upward, and the connecting shaft drives the support ring to slide along the guide groove frame. The connecting shaft causes the parallel charging terminal to move upward. The parallel charging terminal is no longer located between the two insulating isolation end covers. The parallel charging terminal is separated from the electrode column, and the saturated current intercepting operation is timely performed on the electrode column, avoiding the power loss caused by the parallel charging line of the distribution storage battery. The problem of repeated charging of the saturated distribution storage battery charged in parallel can be eliminated in time, which not only reduces energy consumption, but also reduces the number of micro-energy reciprocating charging times of the distribution storage battery, and greatly improves the service life of the parallel charging battery pack.

[0015] The present invention uses two exposed electrode columns, which may have a self-discharge problem. The micro-electric cylinder pushes the linkage guide frame, and the linkage guide frame drives the two docking shafts to slide. The two docking sliders approach each other along the inner wall of the guide support frame. The two insulating side covers insulate and protect the outer walls of the electrode columns to avoid the problem of unsaturated capacitance of the distribution storage battery caused by continuous self-discharge problems in the electrode column area, forming double isolation of the external space and end face of the electrode column, eliminating the self-discharge path from a physical level, greatly reducing the capacity loss rate of the distribution storage battery, and avoiding the invalid power replenishment cycle caused by unsaturated capacitance, significantly improving the reliability and energy efficiency of the distribution storage battery.

[0016] In the present invention, when the parallel charging terminals move upward, the parallel charging cable pack will also move upward. The insulating support bars can support the parallel charging cable pack, and the contact terminals and the connecting terminals are synchronously separated, so that the parallel charging circuit board is prevented from continuing to supply power to the parallel charging cable pack and the contact terminal parts. The contact terminals at the ends of the parallel charging cable pack are saturated and intercepted, and the residual current on the parallel charging cable pack is completely cut off, thereby avoiding an invalid power supply cycle at the charging part of the parallel charging circuit board.

[0017] Through the interaction of these multiple effects, the parallel charging terminals are first no longer located between the two insulating end caps, achieving timely saturation current interception on the electrode column. This then saturates the contact terminals at the ends of the parallel charging cable, completely cutting off the residual current in the parallel charging cable. Finally, dual isolation is achieved between the external space and the end faces of the electrode column, physically eliminating the self-discharge path. This reduces energy consumption and the number of micro-recharge cycles required for the distribution storage battery, significantly extending the service life of the parallel charging battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the main structure of the parallel charging rechargeable battery pack of the present invention.

[0019] Figure 2 This is a schematic diagram of the vertical cross-section of the parallel charging rechargeable battery pack of the present invention.

[0020] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle.

[0021] Figure 4 It is a schematic diagram of a partial structure of the connection between the sliding frame and the driving motor of the present invention.

[0022] Figure 5 It is a schematic diagram of the partial vertical cross-section structure of the connection between the parallel charging cable bank and the parallel charging terminals of the present invention.

[0023] Figure 6 This is a schematic diagram of the vertical cross-section of the parallel charging rechargeable battery pack of the present invention when viewed from above.

[0024] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B in the middle.

[0025] Figure 8 This is a schematic diagram of the partial vertical cross-section of the connection between the parallel charging line bar and the insulating support bar of the present invention.

[0026] Figure 9 It is a schematic diagram of a partial structure of a vertical cross section of the connection between the contact terminal and the parallel charging cable bank of the present invention.

[0027] The accompanying drawings are marked as follows: 1. Shell; 2. Power distribution storage battery; 3. Sliding frame; 4. Transmission screw; 5. Drive motor; 6. Socket block; 7. Guide slot frame; 8. Trough body; 9. Connecting shaft; 10. Parallel charging terminal; 11. Electrode column; 12. Distance sensor; 13. Support ring; 14. Support sleeve block; 15. Sliding support frame; 16. Guide rod; 17. Capacitance measurement sensor; 18. Micro electric cylinder; 19. Linkage guide frame; 20. Docking shaft; 21. Docking slider; 22. Insulating isolation side cover; 23. Insulating isolation end cover; 24. Pressure sensor; 25. Linkage ring; 26. Guide support frame; 27. Parallel charging line bus; 28. Insulating support bar; 29. Contact terminal; 30. Connecting terminal; 31. Parallel charging circuit board; 32. Charging socket; 33. Controller. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] like Figure 1 - Figure 9 A parallel-chargeable rechargeable battery pack is shown. The parallel-chargeable rechargeable battery pack is provided with a saturated current cutoff mechanism. The setting not only reduces energy consumption, but also reduces the number of micro-energy recharge cycles of the distribution storage battery, greatly improving the service life of the parallel-chargeable battery pack. The specific structural setting of the saturated current cutoff mechanism is as follows.

[0030] In this embodiment, if Figure 1 - Figure 4 As shown, a plurality of distribution storage batteries 2 are fixedly installed inside the shell 1, and one end of each distribution storage battery 2 is fixedly connected to a slide frame 3, and a saturated cut-off mechanism is provided inside the slide frame 3; the saturated cut-off mechanism includes a transmission screw 4 rotatably connected to the inside of the slide frame 3, and a drive motor 5 is fixedly installed on one side of the inner wall of the slide frame 3, and the drive motor 5 is used to drive the rotation of the transmission screw 4, and the outer wall of the transmission screw 4 is threadedly connected to a socket block 6, and a guide groove frame 7 is fixedly installed on one side of the socket block 6, and two groove bodies 8 are provided inside the guide groove frame 7, and the inner wall of each groove body 8 is slidably connected to a connecting shaft 9.

[0031] One end of each connecting shaft 9 is fixedly connected to a parallel charging terminal 10, on the inner wall of which an electrode column 11 is slidably mounted. A capacitance measurement sensor 17 is fixedly mounted at one end of the distribution storage battery 2, near its top corner. The guide slot frame 7 and the socket block 6 are both slidably connected to the slide frame 3, with the two slots 8 arranged symmetrically about the center of the guide slot frame 7. The capacitance measurement sensor 17 and the drive motor 5 are both electrically connected to the controller 33, and the two electrode columns 11 are fixedly connected to the distribution storage battery 2.

[0032] In this embodiment, if Figure 3 - Figure 5 As shown, a distance sensor 12 is fixedly connected to one side of the guide groove frame 7, and two support rings 13 are fixedly connected to the outer wall of the connecting shaft 9. The two support rings 13 are symmetrically arranged about the guide groove frame 7, and the two support rings 13 are both slidably connected to the guide groove frame 7; the distance sensor 12 is electrically connected to the controller 33, so that the distance between the distance sensor 12 and the distribution storage battery 2 is sensed by the distance sensor 12. When the distance value sensed by the distance sensor 12 is the same as the distance value set by the controller 33, the drive motor 5 is turned off by the controller 33.

[0033] A support block 14 is fixedly mounted on one end of the electrode column 11. The inner wall of the support block 14 is slidably connected to the guide rod 16. The outer wall of the support block 14 is slidably connected to the sliding frame 15. Both sliding frames 15 are fixedly connected to the distribution storage battery 2. The sliding frame 15 is fixedly connected to the guide rod 16 so that the parallel charging terminal 10 drives the support block 14 to move upward. The support block 14 slides along the outer wall of the guide rod 16 and the support block 14 slides along the inner wall of the sliding frame 15.

[0034] In this embodiment, if Figure 6 - Figure 7 As shown, two micro electric cylinders 18 are provided on one side of the sliding frame 3; the micro electric cylinders 18 are fixedly connected to the distribution storage battery 2, and the output end of each micro electric cylinder 18 is fixedly connected to a linkage guide frame 19. The inner wall of the linkage guide frame 19 is slidably connected to two docking shafts 20, and one end of each docking shaft 20 is fixedly installed with a docking slider 21, and the upper surface of the docking slider 21 is fixedly connected with an insulating side cover 22, and one end of the insulating side cover 22 is fixedly installed with an insulating end cover 23.

[0035] The insulating side cover 22 and docking slider 21 are both slidably connected to the distribution storage battery 2. The insulating end cover 23 is slidably connected to the electrode column 11. A pressure sensor 24 is inserted into the inner wall of the insulating side cover 22. The micro-electric cylinder 18 and the pressure sensor 24 are both electrically connected to the controller 33. A linkage ring 25 is slidably connected to one side of the linkage guide frame 19 and fixedly connected to the docking shaft 20. A guide frame 26 is provided below the electrode column 11. The guide frame 26 is fixedly connected to the distribution storage battery 2, and the docking slider 21 is slidably connected to the guide frame 26. The two docking shafts 20 are symmetrically arranged about the center of the linkage guide frame 19 and slidably connected to the docking slider 21. Both docking shafts 20 have a circular vertical cross-section. The insulating end cover 23 and the insulating side cover 22 are both made of ceramic, and the insulating side cover 22 has an arc-shaped vertical cross-section. The two insulating end covers 23 are symmetrically arranged about the middle of the linkage guide frame 19, and the vertical cross-section shapes of the two insulating end covers 23 are both semicircular.

[0036] In this embodiment, if Figure 1 - Figure 9As shown, the other end of the parallel charging terminal 10 is fixedly connected to a parallel charging cable bus 27, and an insulating support bar 28 is fixedly mounted on the lower surface of the parallel charging cable bus 27. A contact terminal 29 is fixedly connected to one end of the parallel charging cable bus 27, and a connecting terminal 30 is slidably connected to the lower surface of the contact terminal 29, and the connecting terminal 30 and the insulating support bar 28 are slidably connected. A parallel charging circuit board 31 is mounted on one end of the connecting terminal 30, and multiple connecting terminals 30 are fixedly connected to the parallel charging circuit board 31. Two charging sockets 32 are fixedly mounted on the outer wall of the housing 1.

[0037] Both charging sockets 32 are electrically connected to the parallel charging circuit board 31. A controller 33 is located below the charging sockets 32 and is fixedly connected to the housing 1. The insulating support bars 28 are fixedly connected to the parallel charging terminals 10 and are used to support the parallel charging cable bus 27. A gap is provided between the contact terminals 29 and the parallel charging circuit board 31.

[0038] The method for using the parallel charging rechargeable battery pack of the present invention is as follows:

[0039] First, when the present invention performs parallel charging, the charger is plugged into the charging socket 32, and the parallel charging circuit board 31 is powered by the charging socket 32. The parallel charging circuit board 31 supplies power to multiple connection terminals 30 in parallel, and the connection terminals 30 supply power to the contact terminals 29. The contact terminals 29 supply power to the parallel charging bus 27. The parallel charging terminals 10 are powered by the parallel charging bus 27, and the parallel charging terminals 10 supply power to the electrode columns 11. The electrode columns 11 realize parallel charging of the distribution storage batteries 2, and multiple distribution storage batteries 2 can be charged in parallel.

[0040] Secondly, when the present invention performs saturated current interception, since the internal storage capacities of the multiple distribution storage batteries 2 are different, the storage capacity of the distribution storage battery 2 is measured by the capacitance measurement sensor 17. When the capacitance measurement sensor 17 detects that the capacity is saturated, the controller 33 immediately starts the drive motor 5, which drives the transmission screw 4 to rotate. The transmission screw 4 drives the socket block 6 to move right under the action of the thread transmission force. The socket block 6 drives the guide groove frame 7 to move right. The guide groove frame 7 causes the two trough bodies 8 to move right synchronously. The trough body 8 drives the connecting shaft 9 to move upward. The connecting shaft 9 drives the two support rings 13 to move upward, and the lower connecting shaft 9 moves downward synchronously.

[0041] In this way, the connecting shaft 9 drives the support ring 13 to slide along the guide groove frame 7, and the connecting shaft 9 causes the parallel charging terminal 10 to move upward. The parallel charging terminal 10 drives the support sleeve 14 to move upward. The support sleeve 14 slides along the outer wall of the guide rod 16 and the inner wall of the sliding support frame 15. The distance sensor 12 senses the distance between the distance sensor 12 and the distribution storage battery 2. When the distance value sensed by the distance sensor 12 is the same as the distance value set by the controller 33, the controller 33 turns off the drive motor 5, and the parallel charging terminal 10 is no longer located between the two insulating end caps 23. In this way, the parallel charging terminal 10 is separated from the electrode column 11, thereby achieving a saturated current cutoff operation for the electrode column 11, avoiding power loss caused by the parallel charging line 27 supplied by the distribution storage battery 2.

[0042] At the same time, when the present invention performs line end saturation interception, when the parallel charging terminal 10 moves upward, it will drive the parallel charging line 27 to move upward, and the parallel charging terminal 10 drives the insulating support bar 28 to move upward. The insulating support bar 28 can support the parallel charging line 27, and the parallel charging line 27 drives the contact terminal 29 to move upward. The contact terminal 29 and the connecting terminal 30 are synchronously separated, thereby preventing the parallel charging circuit board 31 from continuing to supply power to the parallel charging line 27 and the contact terminal 29. In this way, the contact terminal 29 at the line end of the parallel charging line 27 can be saturated and intercepted.

[0043] Finally, when the present invention performs electrode exposure and current interception, the two exposed electrode columns 11 may experience self-discharge. When the parallel charging terminal 10 is not between the two insulating end caps 23, the controller 33 immediately activates the two micro-electric cylinders 18. The micro-electric cylinders 18 push the linkage guide frame 19, which in turn drives the two docking shafts 20 to slide, thereby bringing the two docking shafts 20 closer together. The two docking shafts 20 respectively drive the two docking sliders 21 closer together, and the two docking sliders 21 approach each other along the inner wall of the guide frame 26. The two docking sliders 21 respectively drive the two insulating side caps 22 closer together. The two insulating side caps 22 provide insulation and protection for the outer walls of the electrode columns 11, preventing the distribution storage battery 2 from being saturated due to continuous self-discharge at the electrode columns 11, and avoiding the need for micro-recharge of the distribution storage battery 2. At the same time, the two insulating end caps 23 provide insulation and protection for the ends of the electrode columns 11, effectively isolating the exposed electrode columns 11 from exposure and current interception. When pressure sensor 24 is squeezed by the insulating side cover 22, pressure is sensed by pressure sensor 24, allowing controller 33 to shut down both micro-electric cylinders 18. When multiple distribution storage batteries 2 are charged in parallel, the fully charged distribution storage batteries 2 can be quickly and promptly shut down.

[0044] In summary, when the capacitance measurement sensor 17 detects that the distribution storage battery 2 has reached saturation capacity, the controller 33 starts the drive motor 5, drives the transmission screw 4 to move the socket block 6, and separates the parallel charging terminal 10 from the electrode column 11; and synchronously triggers the micro-electric cylinder 18 to push the insulating isolation side cover 22 and the insulating isolation end cover 23, thereby performing double insulation isolation on the outer wall and end face of the electrode column 11, eliminating the self-discharge path.

[0045] The contents not described in detail in the specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the existing technology and are not described here.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A parallel charging rechargeable battery pack, comprising a housing and a controller, wherein a plurality of distribution storage batteries are fixedly mounted inside the housing, and one end of each distribution storage battery is fixedly connected to a slide frame, characterized in that: A saturation interception mechanism is provided inside the sliding frame; The saturated cut-off mechanism includes a transmission screw rotatably connected to the inside of the sliding frame, and a driving motor is fixedly installed on one side of the inner wall of the sliding frame, the driving motor is used to drive the rotation of the transmission screw, the outer wall of the transmission screw is threadedly connected to a socket block, and a guide slot frame is fixedly installed on one side of the socket block, and two slots are provided inside the guide slot frame, and the inner wall of each slot body is slidably connected to a connecting shaft; one end of each connecting shaft is fixedly connected to a parallel charging terminal, and an electrode column is slidably installed on the inner wall of the parallel charging terminal, and a capacitance measuring sensor is fixedly installed at one end of the distribution storage battery and near its top corner position, and two micro electric cylinders are provided on one side of the sliding frame; the micro electric cylinder is fixedly connected to the distribution storage battery, and the output end of each micro electric cylinder is fixedly connected to a linkage guide frame, and the inner wall of the linkage guide frame is slidably connected to two docking shafts, and one end of each docking shaft is fixedly installed with a docking slider, and the upper surface of the docking slider is fixedly connected with an insulating isolation side cover, and one side of the insulating isolation side cover An insulating end cover is fixedly installed at the end; the insulating side cover and the docking slider are both slidably connected to the distribution storage battery, the insulating end cover is slidably connected to the electrode column, the inner wall of the insulating side cover is plugged with a pressure sensor, and the micro cylinder and the pressure sensor are electrically connected to the controller; a linkage ring is slidably connected to one side of the linkage guide frame, and the linkage ring is fixedly connected to the docking shaft, a guide support frame is provided under the electrode column, the guide support frame is fixedly connected to the distribution storage battery, the docking slider is slidably connected to the guide support frame, the other end of the parallel charging terminal is fixedly connected to the parallel charging line bank, and the lower surface of the parallel charging line bank is fixedly installed with an insulating support bar; one end of the parallel charging line bank is fixedly connected to the contact terminal, the lower surface of the contact terminal is slidably connected to the connecting terminal, and the connecting terminal is slidably connected to the insulating support bar; a parallel charging circuit board is installed at one end of the connecting terminal, and multiple connecting terminals are fixedly connected to the parallel charging circuit board.

2. The parallel charging rechargeable battery pack according to claim 1, characterized in that: The guide groove frame and the sleeve block are both slidably connected to the slide frame, and the two groove bodies are symmetrically arranged about the middle of the guide groove frame; The capacitance measurement sensor and the drive motor are both electrically connected to the controller, and the two electrode columns are both fixedly connected to the power distribution storage battery.

3. The parallel charging rechargeable battery pack according to claim 1, characterized in that: A distance sensor is fixedly connected to one side of the guide groove frame, and two support rings are fixedly connected to the outer wall of the connecting shaft. The two support rings are symmetrically arranged with respect to the guide groove frame, and both of the support rings are slidably connected to the guide groove frame; The distance sensor is electrically connected to the controller.

4. The parallel charging rechargeable battery pack according to claim 1, characterized in that: A support sleeve is fixedly installed at one end of the electrode column, the inner wall of the support sleeve is slidably connected to the guide rod, and the outer wall of the support sleeve is slidably connected to the sliding support frame. Both of the two sliding support frames are fixedly connected to the distribution storage battery, and the sliding support frames are fixedly connected to the guide rod.

5. The parallel charging rechargeable battery pack according to claim 1, characterized in that: The two docking shafts are symmetrically arranged about the middle of the linkage guide frame, and the linkage guide frame is slidably connected to the docking slider; The vertical cross-sections of the two docking shafts are both circular.

6. The parallel charging rechargeable battery pack according to claim 1, characterized in that: The insulating isolation end cover and the insulating isolation side cover are both made of ceramic material, and the vertical cross-section of the insulating isolation side cover is in the shape of an arc.

7. The parallel charging rechargeable battery pack according to claim 1, characterized in that: The two insulating and isolating end covers are symmetrically arranged about the middle part of the linkage guide frame, and the vertical cross-section shapes of the two insulating and isolating end covers are both semicircular.

8. The parallel charging rechargeable battery pack according to claim 1, characterized in that: Two charging sockets are fixedly mounted on the outer wall of the shell, and both of the charging sockets are electrically connected to the parallel charging circuit board. The controller is located below the charging sockets, and the controller is fixedly connected to the shell.

9. The parallel charging rechargeable battery pack according to claim 1, characterized in that: The insulating support bar is fixedly connected to the parallel charging terminal, and the insulating support bar is used to support the parallel charging line bank. A gap is provided between the contact terminal and the parallel charging circuit board.

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