Rechargeable battery pack for parallel charging

Abstract

The invention discloses a rechargeable battery pack for parallel charging, and particularly relates to the technical field of electric energy storage, and the rechargeable battery pack comprises a shell, a controller, a plurality of power distribution storage batteries, a sliding frame and a saturation cut-off mechanism; wherein the saturation cut-off mechanism comprises a transmission screw rod, a driving motor, a sleeving block, a guide groove frame, two groove bodies, a connecting shaft, a parallel charging terminal, an electrode column and a capacitance measurement sensor. Through the saturation cut-off mechanism, the device has the advantages that the problem of repeated charging of the saturated power distribution storage battery charged in parallel is solved in time, the energy consumption is reduced, the micro-complementary energy reciprocating charging frequency of the power distribution storage battery is reduced, and the service life of the parallel rechargeable battery pack is greatly prolonged; therefore, the problems of energy consumption and influence on the service life of the parallel charging battery pack due to the fact that repeated charging of the parallel charging saturated battery pack is difficult to eliminate in time are solved.

Description

Technical Field

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

[0002] In a power supply energy storage system, a rechargeable battery pack for parallel charging has multiple uses, mainly reflected in increasing the total capacity of the battery pack. The parallel connection method is to connect the positive electrodes of multiple battery packs to each other and the negative electrodes to each other to form a parallel battery pack. In this connection, the current is divided among the battery packs, while the voltage remains unchanged. Therefore, parallel charging can significantly increase the total capacity of the battery pack, which means that the system can store more electric energy.

[0003] After retrieval in the existing published literature, the patent with the patent publication number CN103532191A discloses a dual-battery-pack charging system for a vacuum cleaner and its charging method. This technology realizes simultaneous charging of two parallel-connected battery packs, improving the charging efficiency. The invention also discloses the corresponding charging control method, which detects the voltages of the two battery packs and realizes simultaneous charging of the two battery packs in a constant-current-then-constant-voltage manner to ensure the charging efficiency and charging saturation. When the voltage difference between the two battery packs exceeds the set value, 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, parallel charging of the rechargeable battery pack needs to be achieved. During the use of each battery pack, the energy storage capacity of the battery packs is discrete due to aging differences, and the capacities of the battery packs are different, resulting in an imbalance in the charging progress. The fully charged battery is subject to line loss energy and the energy consumption of the charging device, and reverse energy consumption requires micro-compensation charging. The undercharged battery continues to be charged, forming a dead cycle of compensation to loss, making it difficult to timely eliminate the problem of repeated charging of the saturated battery pack in parallel charging. This not only consumes energy but also affects the service life of the parallel-charging battery pack. Summary of the Invention

[0005] To overcome the above-mentioned defects of the prior art, the present invention provides the following technical solution: a rechargeable battery pack for parallel charging, comprising a housing and a controller. A plurality of power distribution storage batteries are fixedly installed inside the housing. One end of each power distribution storage battery is fixedly connected with a sliding frame, and a saturation current cut-off mechanism is arranged inside the sliding frame; the saturation current cut-off mechanism includes a transmission screw rotatably connected inside 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. A socket block is threadedly connected to the outer wall of the transmission screw. One side of the socket block is fixedly installed with a guiding groove frame. Two grooves are opened inside the guiding groove frame. A connecting shaft is slidably connected to the inner wall of each groove; one end of each connecting shaft is fixedly connected with a parallel charging terminal. An electrode post is slidably installed inside the parallel charging terminal. A capacitance measurement sensor is fixedly installed at one end of the power distribution storage battery and near the top corner position thereof.

[0006] Preferably, both the guiding groove frame and the socket block are slidably connected to the sliding frame. The two grooves are symmetrically arranged about the middle of the guiding groove frame; both the capacitance measurement sensor and the driving motor are electrically connected to the controller. Both the electrode posts are fixedly connected to the power distribution storage battery. A distance sensor is fixedly connected to one side of the guiding groove frame. Two support rings are fixedly connected to the outer wall of the connecting shaft. The two support rings are symmetrically arranged about the guiding groove frame. Both the support rings are slidably connected to the guiding groove frame; the distance sensor is electrically connected to the controller. A support sleeve block is fixedly installed at one end of the electrode post. A guiding rod is slidably connected to the inner wall of the support sleeve block. A sliding support frame is slidably connected to the outer wall of the support sleeve block. Both the sliding support frames are fixedly connected to the power distribution storage battery. The sliding support frame is fixedly connected to the guiding rod.

[0007] When in use of the present technology, when the capacitance measurement sensor detects that the capacitance is the saturation capacitance, the controller immediately starts the driving motor. The driving motor drives the transmission screw to rotate. The socket block drives the guiding groove frame to move rightward. The groove drives the connecting shaft to move upward, and the lower connecting shaft moves downward synchronously. 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 caps. In this way, the parallel charging terminal is separated from the electrode post, thereby realizing the saturation current cut-off operation for the electrode post.

[0008] Preferably, two micro electric cylinders are arranged 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 with a linkage guide frame. Two docking shafts are slidably connected to the inner wall of the linkage guide frame. 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. An insulating isolation end cap is fixedly installed at one end of the insulating isolation side cover.

[0009] Both the insulating isolation side cover and the docking slider are slidably connected to the power distribution storage battery. The insulating isolation end cover is slidably connected to the electrode post. A pressure sensor is inserted into the inner wall of the insulating isolation side cover. Both the micro electric 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 guiding support frame is arranged below the electrode post, and the guiding support frame is fixedly connected to the power distribution storage battery. The docking slider is slidably connected to the guiding support frame. 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-sectional shapes of the two docking shafts are both circular. The insulating isolation end cover and the insulating isolation side cover are both made of ceramic material, and the vertical cross-sectional shape of the insulating isolation side cover is arc-shaped. The two insulating isolation end covers are symmetrically arranged about the middle of the linkage guide frame, and the vertical cross-sectional shapes of the two insulating isolation end covers are both semi-circular.

[0010] When this technology is in use, there will be a self-discharge problem with the two exposed electrode posts. The micro electric cylinder pushes the linkage guide frame, and the linkage guide frame drives the two docking shafts to slide, so that the two docking shafts approach each other, and the two docking sliders approach each other along the inner wall of the guiding support frame. The two insulating isolation side covers provide insulating isolation protection for the outer wall of the electrode post, avoiding the problem of unsaturated capacitance of the power distribution storage battery caused by continuous self-discharge at the electrode post part, and avoiding the problem of needing to perform a small amount of supplementary charging on the power distribution storage battery. At the same time, the two insulating isolation end covers provide insulating isolation protection for the ends of the electrode posts.

[0011] Preferably, the other end of the parallel charging terminal is fixedly connected to a parallel charging wire row, and an insulating support bar is fixedly installed on the lower surface of the parallel charging wire row. One end of the parallel charging wire row is fixedly connected to a contact terminal, and a connection terminal is slidably connected to the lower surface of the contact terminal, and the connection terminal is slidably connected to the insulating support bar. A parallel charging circuit board is installed at one end of the connection terminal, and multiple connection terminals are fixedly connected to the parallel charging circuit board. Two charging sockets are fixedly installed on the outer wall of the housing, and both charging sockets are electrically connected to the parallel charging circuit board. The controller is located below the charging socket, and the controller is fixedly connected to the housing. The insulating support bar is fixedly connected to the parallel charging terminal, and the insulating support bar is used to support the parallel charging wire row. There is a gap between the contact terminal and the parallel charging circuit board.

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

[0013] Technical effects and advantages of the present invention: Through the saturation current cutoff mechanism of the present invention, when the capacitance measurement sensor detects that the capacitance is the saturation capacitance, the driving screw drives the socket block to move right under the action of the threaded driving force. The guiding groove frame enables the two grooves to move right synchronously. The groove drives the connecting shaft to move up. The connecting shaft drives the support ring to slide along the guiding groove frame. The connecting shaft makes the parallel charging terminals move up. The parallel charging terminals are no longer located between the two insulating isolation end caps. The parallel charging terminals are separated from the electrode posts, and the saturation current cutoff operation of the electrode posts is realized in time, avoiding the power loss caused by the parallel charging wire row of the power distribution storage battery. The problem of repeated charging of the saturated power distribution storage battery for parallel charging can be eliminated in time, not only reducing energy consumption, but also reducing the number of reciprocating charging for micro-compensating energy of the power distribution storage battery, and greatly improving the service life of the parallel charging battery pack.

[0014] For the present invention, the two exposed electrode posts will have the problem of self-discharge. 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 guiding support frame. The two insulating isolation side covers insulate and protect the outer wall of the electrode posts, avoiding the problem of unsaturated capacitance of the power distribution storage battery caused by the continuous self-discharge problem at the electrode post part, forming a double isolation of the external space and end face of the electrode post, eliminating the self-discharge path from the physical level, greatly reducing the capacitance loss rate of the power distribution storage battery, and at the same time avoiding the ineffective charging cycle caused by unsaturated capacitance, and significantly improving the reliability and energy efficiency ratio of the power distribution storage battery.

[0015] When the parallel charging terminals move up in the present invention, they will drive the parallel charging wire row to move up. The insulating strip can support the parallel charging wire row, and the contact terminal and the connection terminal are separated synchronously, avoiding the parallel charging circuit board from continuing to supply power to the parallel charging wire row and the contact terminal part, performing saturation current cutoff on the contact terminal at the wire end part of the parallel charging wire row, completely cutting off the residual current on the parallel charging wire row, and avoiding the ineffective power supply cycle of the charging part of the parallel charging circuit board.

[0016] Through the mutual influence of the above multiple functions, first, the parallel charging terminals are no longer located between the two insulating isolation end caps, and the saturation current cutoff operation of the electrode posts is realized in time. Then, the saturation current cutoff is performed on the contact terminals at the wire end part of the parallel charging wire row, completely cutting off the residual current on the parallel charging wire row. Finally, a double isolation of the external space and end face of the electrode post is formed, eliminating the self-discharge path from the physical level. In summary, not only the energy consumption is reduced, but also the number of reciprocating charging for micro-compensating energy of the power distribution storage battery is reduced, and the service life of the parallel charging battery pack is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the parallel charging battery pack of the present invention.

[0018] Figure 2 This is the schematic front view of the vertical cross-section of the rechargeable battery pack for parallel charging of the present invention.

[0019] Figure 3 For the present invention Figure 2 The enlarged schematic view of part A in it.

[0020] Figure 4 This is the schematic view of the truncated partial structure at the connection between the sliding frame and the driving motor of the present invention.

[0021] Figure 5 This is the schematic view of the partial vertical cross-section structure at the connection between the parallel charging wire row and the parallel charging terminal of the present invention.

[0022] Figure 6 This is the schematic bottom view of the vertical cross-section of the rechargeable battery pack for parallel charging of the present invention.

[0023] Figure 7 For the present invention Figure 6 The enlarged schematic view of part B in it.

[0024] Figure 8 This is the schematic view of the partial vertical cross-section structure at the connection between the parallel charging wire row and the insulating support strip of the present invention.

[0025] Figure 9 This is the schematic view of the truncated partial vertical cross-section structure at the connection between the contact terminal and the parallel charging wire row of the present invention.

[0026] Reference numerals are: 1, housing; 2, power distribution storage battery; 3, sliding frame; 4, transmission screw; 5, driving motor; 6, socket block; 7, guide groove frame; 8, groove body; 9, connecting shaft; 10, parallel charging terminal; 11, electrode post; 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 wire row; 28, insulating support strip; 29, contact terminal; 30, connection terminal; 31, parallel charging circuit board; 32, charging socket; 33, controller. Detailed implementation manners

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] As Figure 1 - Figure 9 shown, there is a rechargeable battery pack for parallel charging. A saturation cut-off mechanism is provided on the rechargeable battery pack for parallel charging. The setting of the saturation cut-off mechanism not only reduces energy consumption, but also reduces the number of reciprocating charging for micro-energy compensation of the distribution storage battery, and greatly improves the service life of the parallel charging battery pack. The specific structure of the saturation cut-off mechanism is set as follows.

[0029] In this embodiment, as Figure 1 - Figure 4 shown, a plurality of distribution storage batteries 2 are fixedly installed inside the housing 1. One end of each distribution storage battery 2 is fixedly connected with a sliding frame 3, and a saturation cut-off mechanism is arranged inside the sliding frame 3; the saturation cut-off mechanism includes a transmission screw rod 4 rotatably connected inside the sliding frame 3, and a driving motor 5 is fixedly installed on one side of the inner wall of the sliding frame 3. The driving motor 5 is used to drive the rotation of the transmission screw rod 4. A socket block 6 is threadedly connected to the outer wall of the transmission screw rod 4. One side of the socket block 6 is fixedly installed with a guiding groove frame 7. Two grooves 8 are opened inside the guiding groove frame 7, and a connecting shaft 9 is slidably connected to the inner wall of each groove 8.

[0030] One end of each connecting shaft 9 is fixedly connected with a parallel charging terminal 10. An electrode post 11 is slidably installed inside the parallel charging terminal 10. A capacitance measurement sensor 17 is fixedly installed at one end of the distribution storage battery 2 and near the top corner position. Both the guiding groove frame 7 and the socket block 6 are slidably connected to the sliding frame 3. The two grooves 8 are symmetrically arranged about the middle of the guiding groove frame 7; both the capacitance measurement sensor 17 and the driving motor 5 are electrically connected to the controller 33, and both electrode posts 11 are fixedly connected to the distribution storage battery 2.

[0031] In this embodiment, as Figure 3 - Figure 5 shown, a distance sensor 12 is fixedly connected to one side of the guiding groove frame 7. 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 guiding groove frame 7, and both support rings 13 are slidably connected to the guiding groove frame 7; the distance sensor 12 is electrically connected to the controller 33, so as to sense the distance between the distance sensor 12 and the distribution storage battery 2 through 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 driving motor 5 is turned off through the controller 33.

[0032] One end of the electrode post 11 is fixedly installed with a support sleeve block 14. The inner wall of the support sleeve block 14 is slidably connected to a guide rod 16. The outer wall of the support sleeve block 14 is slidably connected to a sliding support frame 15. Both sliding support frames 15 are fixedly connected to the power distribution storage battery 2. The sliding support frame 15 and the guide rod 16 are fixedly connected, so as to facilitate the parallel charging terminal 10 to drive the support sleeve block 14 to move upward. The support sleeve block 14 slides along the outer wall of the guide rod 16, and the support sleeve block 14 slides along the inner wall of the sliding support frame 15.

[0033] In this embodiment, as Figure 6 - Figure 7 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 power distribution storage battery 2. The output end of each micro electric cylinder 18 is fixedly connected with a linkage guide frame 19. Two docking shafts 20 are slidably connected to the inner wall of the linkage guide frame 19. One end of each docking shaft 20 is fixedly installed with a docking slider 21. The upper surface of the docking slider 21 is fixedly connected with an insulating isolation side cover 22. One end of the insulating isolation side cover 22 is fixedly installed with an insulating isolation end cover 23.

[0034] Both the insulating isolation side cover 22 and the docking slider 21 are slidably connected to the power distribution storage battery 2. The insulating isolation end cover 23 is slidably connected to the electrode post 11. A pressure sensor 24 is inserted into the inner wall of the insulating isolation side cover 22. The micro electric cylinders 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 the linkage ring 25 is fixedly connected to the docking shaft 20. A guide support frame 26 is provided below the electrode post 11. The guide support frame 26 is fixedly connected to the power distribution storage battery 2. The docking slider 21 is slidably connected to the guide support frame 26. The two docking shafts 20 are symmetrically arranged about the middle of the linkage guide frame 19. The linkage guide frame 19 and the docking slider 21 are slidably connected; the vertical cross-sectional shapes of the two docking shafts 20 are both circular. Both the insulating isolation end cover 23 and the insulating isolation side cover 22 are made of ceramic material, and the vertical cross-sectional shape of the insulating isolation side cover 22 is arc-shaped. The two insulating isolation end covers 23 are symmetrically arranged about the middle of the linkage guide frame 19, and the vertical cross-sectional shapes of the two insulating isolation end covers 23 are both semi-circular.

[0035] In this embodiment, as Figure 1 - Figure 9As shown, the other end of the parallel charging terminal 10 is fixedly connected to a parallel charging wire row 27, and an insulating support bar 28 is fixedly installed on the lower surface of the parallel charging wire row 27. One end of the parallel charging wire row 27 is fixedly connected to a contact terminal 29, and a connection terminal 30 is slidably connected to the lower surface of the contact terminal 29, and the connection terminal 30 is slidably connected to the insulating support bar 28; a parallel charging circuit board 31 is installed at one end of the connection terminal 30, and multiple connection terminals 30 are fixedly connected to the parallel charging circuit board 31, and two charging sockets 32 are fixedly installed on the outer wall of the housing 1.

[0036] Both of the two charging sockets 32 are electrically connected to the parallel charging circuit board 31. The controller 33 is located below the charging socket 32, and the controller 33 is fixedly connected to the housing 1. The insulating support bar 28 is fixedly connected to the parallel charging terminal 10, and the insulating support bar 28 is used to support the parallel charging wire row 27, and there is a gap between the contact terminal 29 and the parallel charging circuit board 31.

[0037] The usage method of the rechargeable battery pack with parallel charging of the present invention is as follows: 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 through the charging socket 32. The parallel charging circuit board 31 supplies power to multiple connection terminals 30 in parallel. The connection terminals 30 supply power to the contact terminal 29, the contact terminal 29 supplies power to the parallel charging wire row 27, the parallel charging wire row 27 supplies power to the parallel charging terminal 10, the parallel charging terminal 10 supplies power to the electrode post 11, and the electrode post 11 performs parallel charging on the power distribution storage battery 2, and multiple power distribution storage batteries 2 can be charged in parallel.

[0038] Second, when the present invention performs saturation current cutoff, due to the difference in the internal storage capacity of multiple power distribution storage batteries 2. The storage capacitance of the power distribution storage battery 2 is measured by the capacitance measurement sensor 17. When the capacitance measurement sensor 17 detects that the capacitance is the saturation capacitance, the drive motor 5 is immediately started through the controller 33. The drive motor 5 drives the transmission screw 4 to rotate. The transmission screw 4 drives the socket block 6 to move rightward under the action of the screw transmission force. The socket block 6 drives the guide groove frame 7 to move rightward. The guide groove frame 7 makes the two groove bodies 8 move rightward synchronously. The groove 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.

[0039] In this way, the connecting shaft 9 drives the supporting ring 13 to slide along the guiding groove frame 7, and the connecting shaft 9 causes the parallel charging terminal 10 to move upward. The parallel charging terminal 10 drives the supporting sleeve block 14 to move upward. The supporting sleeve block 14 slides along the outer wall of the guiding rod 16 and also slides along the inner wall of the sliding support frame 15. The distance sensor 12 senses the distance between the distance sensor 12 and the power 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 driving motor 5 is turned off by the controller 33. Then the parallel charging terminal 10 is no longer located between the two insulating isolation end caps 23, so that the parallel charging terminal 10 is separated from the electrode post 11, thereby realizing the saturated current cutoff operation for the electrode post 11 and avoiding the power loss caused by the power supply of the parallel charging wire row 27 of the power distribution storage battery 2.

[0040] At the same time, when the present invention performs line-end saturated current cutoff, when the parallel charging terminal 10 moves upward, it will drive the parallel charging wire row 27 to move upward, and the parallel charging terminal 10 drives the insulating support strip 28 to move upward. The insulating support strip 28 can support the parallel charging wire row 27. The parallel charging wire row 27 drives the contact terminal 29 to move upward, and the contact terminal 29 and the connection terminal 30 are synchronously separated. In this way, it is avoided that the parallel charging circuit board 31 continues to supply power to the parallel charging wire row 27 and the contact terminal 29 parts, so that the contact terminal 29 at the line-end part of the parallel charging wire row 27 can be saturatedly cut off from the current.

[0041] Finally, when the present invention performs electrode exposure current cutoff, the two exposed electrode posts 11 will have the problem of self-discharge. When the parallel charging terminal 10 is not between the two insulating isolation end caps 23, the controller 33 immediately starts the two micro electric cylinders 18. The micro electric cylinders 18 push the linkage guide frame 19, and the linkage guide frame 19 drives the two docking shafts 20 to slide, so that the two docking shafts 20 approach each other. The two docking shafts 20 respectively drive the two docking sliders 21 to approach each other, and the two docking sliders 21 approach each other along the inner wall of the guiding support frame 26. The two docking sliders 21 respectively drive the two insulating isolation side covers 22 to approach each other. The two insulating isolation side covers 22 insulate and protect the outer wall of the electrode post 11, avoiding the problem that the capacitance of the power distribution storage battery 2 is unsaturated caused by the continuous self-discharge problem at the electrode post 11 part and avoiding the problem that the power distribution storage battery 2 needs to be slightly replenished with electricity again. At the same time, the two insulating isolation end caps 23 insulate and protect the end part of the electrode post 11, and can realize the exposure current cutoff isolation for the exposed electrode post 11. When the pressure sensor 24 is squeezed by the opposite insulating isolation side cover 22, the pressure is sensed by the pressure sensor 24, so that the controller 33 can turn off the two micro electric cylinders 18. When multiple power distribution storage batteries 2 are in parallel charging, the fully saturated power distribution storage battery 2 can be quickly and saturatedly cut off from the current in a timely manner.

[0042] In summary, when the capacitance measurement sensor 17 detects that the power distribution storage battery 2 reaches the saturated capacitance, the controller 33 starts the drive motor 5, and the drive transmission screw 4 drives the socket block 6 to move, so that the parallel charging terminal 10 is separated from the electrode post 11; simultaneously trigger the micro cylinder 18 to push the insulating isolation side cover 22 and the insulating isolation end cover 23 to perform double insulation isolation on the outer wall and end face of the electrode post 11, eliminating the self-discharge path.

[0043] The content not described in detail in the specification belongs to the prior art well-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, since the electrical control components not mentioned belong to the prior art, they are not shown in the figure and will not be described here.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A parallel charging rechargeable battery pack, comprising a housing (1) and a controller (33), wherein a plurality of distribution storage batteries (2) are fixedly mounted inside the housing (1), and one end of each distribution storage battery (2) is fixedly connected to a slide frame (3), characterized in that: A saturated flow interception mechanism is provided inside the sliding frame (3); The saturated interception mechanism comprises a transmission screw (4) rotatably connected to the inside of the slide frame (3), and a driving motor (5) is fixedly mounted on one side of the inner wall of the slide frame (3), the driving motor (5) is used to drive the rotation of the transmission screw (4), the outer wall of the transmission screw (4) is threadedly connected to a sleeve block (6), one side of the sleeve block (6) is fixedly mounted with a guide groove frame (7), the inside of the guide groove frame (7) is provided with two groove bodies (8), and the inner wall of each groove body (8) is slidably connected to a connecting shaft (9); One end of each of the connecting shafts (9) is fixedly connected to a parallel charging terminal (10), an electrode column (11) is slidably mounted on the inner wall of the parallel charging terminal (10), and a capacitance measurement sensor (17) is fixedly mounted on one end of the power distribution storage battery (2) near its top corner.

2. The parallel charging rechargeable battery pack according to claim 1, characterized in that: The guide groove frame (7) and the sleeve block (6) are both slidably connected to the slide frame (3), and the two groove bodies (8) are symmetrically arranged about the middle of the guide groove 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 both fixedly connected to the power distribution storage battery (2).

3. The parallel charging rechargeable battery pack according to claim 1, characterized in that: 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 with respect to 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).

4. The parallel charging rechargeable battery pack according to claim 1, characterized in that: A support sleeve (14) is fixedly mounted on one end of the electrode column (11); the inner wall of the support sleeve (14) is slidably connected to a guide rod (16); the outer wall of the support sleeve (14) is slidably connected to a sliding support frame (15); both sliding support frames (15) are fixedly connected to the power distribution storage battery (2); and the sliding support frame (15) is fixedly connected to the guide rod (16).

5. The parallel charging rechargeable battery pack according to claim 1, characterized in that: Two micro electric cylinders (18) are provided on one side of the sliding frame (3); The micro-electric cylinder (18) is fixedly connected to the power distribution storage battery (2); 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); one end of each docking shaft (20) is fixedly mounted with a docking slider (21); the upper surface of the docking slider (21) is fixedly connected to an insulating isolation side cover (22); and one end of the insulating isolation side cover (22) is fixedly mounted with an insulating isolation end cover (23); The insulating side cover (22) and the docking slider (21) are both slidably connected to the power distribution storage battery (2), the insulating end cover (23) is slidably connected to the electrode column (11), a pressure sensor (24) is plugged into the inner wall of the insulating side cover (22), and 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 the linkage ring (25) is fixedly connected to the docking shaft (20). A guide frame (26) is provided below the electrode column (11), and the guide frame (26) is fixedly connected to the power distribution storage battery (2). The docking slider (21) is slidably connected to the guide frame (26).

6. The parallel charging rechargeable battery pack according to claim 5, characterized in that: The two docking shafts (20) are symmetrically arranged about the middle of the linkage guide frame (19), and the linkage guide frame (19) is slidably connected to the docking slide block (21); The vertical cross-sections of the two docking shafts (20) are both circular.

7. The parallel charging rechargeable battery pack according to claim 5, characterized in that: The insulating isolation end cover (23) and the insulating isolation side cover (22) are both made of ceramic material, and the vertical cross-section of the insulating isolation side cover (22) is in the shape of an arc.

8. The parallel charging rechargeable battery pack according to claim 5, characterized in that: 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.

9. The parallel charging rechargeable battery pack according to claim 1, characterized in that: The other end of the parallel charging terminal (10) is fixedly connected to a parallel charging wire row (27), and an insulating support bar (28) is fixedly mounted on the lower surface of the parallel charging wire row (27); One end of the parallel charging cable row (27) is fixedly connected to a contact terminal (29), a lower surface of the contact terminal (29) is slidably connected to a connection terminal (30), and the connection terminal (30) is slidably connected to the insulating support bar (28); A parallel charging circuit board (31) is installed at one end of the connection terminal (30), and a plurality of the connection terminals (30) are fixedly connected to the parallel charging circuit board (31). Two charging sockets (32) are fixedly installed on the outer wall of the shell (1), and the two charging sockets (32) are electrically connected to the parallel charging circuit board (31). The controller (33) is located below the charging socket (32), and the controller (33) is fixedly connected to the shell (1).

10. The parallel charging rechargeable battery pack according to claim 9, characterized in that: The insulating support bar (28) is fixedly connected to the parallel charging terminal (10), the insulating support bar (28) is used to support the parallel charging line row (27), and a gap is provided between the contact terminal (29) and the parallel charging circuit board (31).

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