Combined type ship battery pack capable of being used in parallel and power supply system

Abstract

The invention relates to the technical field of batteries, in particular to a combined marine battery pack capable of being used in parallel and a power supply system, the combined marine battery pack comprises a plurality of battery monomers and a sub-control seat mounted on the battery monomers, the battery monomers are conductively connected with the sub-control seat, the sub-control seat is connected with an L-shaped series connection piece, and the L-shaped series connection piece is connected with the sub-control seat. The L-shaped series connection piece is connected with a conduction contact table, and an insulating bottom frame is fixedly arranged outside the battery monomers; according to the combined type ship battery pack capable of being used in parallel connection, through cooperation of the sub-control base, the switching moving plate, the parallel connection waiting structure and the like, the battery pack can be rapidly switched to the parallel connection state from the series connection state, and therefore the battery pack can adapt to more complex working conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a combined ship battery pack and a power supply system that can be used in parallel. Background Art

[0002] Ships include a large number of motor-driven equipment and emergency lighting, communication and other equipment. For motor equipment, according to the formula Q=RT, it can be seen that under the same power, reducing the current can reduce the heating problem, so the drive of the motor often requires high voltage and low current. For equipment such as emergency lighting, due to large-scale layout, each is in parallel, so the voltage requirement is very low. After large-scale parallel layout, the current required is high, so low voltage and high current power supply are required. For the above, traditional technology can only be used to set up two battery packs, one battery pack has battery cells in series to provide high voltage, and the other battery pack has battery cells in parallel to provide high current to deal with the above situation. In actual work, most of the emergency lighting and other equipment are in the off state. Setting up two battery packs increases the ship's load, occupies ship space, and increases the cost of equipment layout. Summary of the invention

[0003] The object of the present invention is to provide a combined ship battery pack and a power supply system that can be used in parallel to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a combined ship battery pack that can be used in parallel, comprising a plurality of battery cells and a sub-control seat installed on the battery cells, wherein the battery cells and the sub-control seat are electrically connected, an L-shaped series connection member is connected to the sub-control seat, a conducting contact platform is connected to the L-shaped series connection member, an insulating base frame is fixedly provided on the outside of the battery cells, and the L-shaped series connection member and the conducting contact platform are both embedded and installed in the insulating base frame; The insulating chassis is provided with a bridge slide plate, and when the bridge slide plate is in conductive contact with the conductive contact platform, a plurality of battery cells can be connected in series through the cooperation of the L-shaped series connection member and the bridge slide plate; A switching movable plate is arranged above the insulating chassis, and the bridge slide plate is embedded and fixed on the switching movable plate. The bridge slide plate is driven to make contact or separate with the conducting contact platform through the reciprocating sliding of the switching movable plate. The switching movable plate is provided with a parallel waiting structure outside. When the switching movable plate drives the bridge through sliding plate and the conducting contact stage to separate, several groups of battery monomers are connected in parallel through the parallel waiting structure.

[0005] A base frame pressure strip is detachably mounted on the top of the insulating base frame, and the switching movable plate is pressed and limited by the base frame pressure strip.

[0006] The parallel waiting structure specifically includes a side wing support plate and a fixed sleeve, and the switching movable plate, the side wing support plate and the fixed sleeve are integrally fixedly arranged.

[0007] An embedded guide rod is fixedly inserted on the fixed sleeve, a parallel plug is fixedly installed on the embedded guide rod, a parallel slot is opened on the sub-control seat, the parallel plug and the parallel slot correspond to each other, when the switching moving plate drives the bridge to separate the conduction slide plate from the conduction contact platform, the parallel plug will be inserted into the parallel slot to realize conduction contact.

[0008] A rebound groove is provided in the parallel plug, and a braided conductive belt is provided on the embedded guide rod for conduction connection; The embedded guide rod is conductively connected to another corresponding sub-control seat through a braided conductive belt, so that when the parallel plug is inserted into the parallel slot, the same polarity of the battery cells is conductively connected to achieve parallel connection.

[0009] A telescopic controller is fixedly arranged on the insulating base frame, a telescopic plate is arranged in the telescopic controller, and the telescopic movement of the telescopic plate is controlled by the telescopic controller.

[0010] The telescopic plate is provided with plate side teeth and a locking V-groove, and a matching V-convex is provided in the locking V-groove. The telescopic plate is limited by the matching V-convex and the locking V-groove, so that the telescopic plate can drive the switching movable plate to move synchronously when the telescopic plate moves telescopically.

[0011] An elastic connecting rod is arranged above the switching movable plate, one end of the elastic connecting rod is embedded with a fixing pin, the elastic connecting rod is fixedly installed with the switching movable plate through the fixing pin, and the other end of the elastic connecting rod is fixedly installed with a matching V-convex; When the mating V-shaped projection is squeezed out of the locking V-shaped groove, the mating V-shaped projection exerts pressure on the elastic connecting rod, causing the elastic connecting rod to bend elastically.

[0012] A gear pin hole is provided on the surface of the switching movable plate, and an adjusting pressure pin is inserted into the gear pin hole. The elastic connecting rod is blocked and supported by the adjusting pressure pin. Changing the position of the adjusting pressure pin can change the bending position of the elastic connecting rod when it is subjected to the matching V-convex pressure.

[0013] A fixed embedded shaft is fixedly arranged on the switching movable plate, and an external rotating sleeve of the fixed embedded shaft is provided with a bottom gear disc and a secondary gear disc, the bottom gear disc and the secondary gear disc are coaxially fixedly installed, and the diameter of the bottom gear disc is larger than the diameter of the secondary gear disc.

[0014] An external rack is fixedly provided on the bottom frame pressure strip, and the external rack is meshed with the secondary gear disc; When the mating V-convex is stuck in the locking V-groove, the plate side teeth and the bottom gear disc do not contact each other. When the telescopic plate is extended to make the mating V-convex disengage from the locking V-groove, the plate side teeth will contact and engage with the bottom gear disc.

[0015] An elastic contact sheet is disposed on the lower surface of the bridge slide, and the bridge slide is elastically pressed and conductively contacted with the conductive contact platform through the elastic contact sheet.

[0016] A power supply system comprises a combined ship battery pack that can be used in parallel and a line switching relay, wherein the connection circuit of the combined ship battery pack that can be used in parallel is changed by the line switching relay.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The combined ship battery pack of the present invention can be used in parallel. Through the cooperation of the sub-control seat, the switching movable plate and the parallel waiting structure, the battery pack can be quickly switched from the series state to the parallel state, so as to adapt to more complex working conditions. For example, in the normal state of the ship, the battery packs are connected in series to provide high voltage for driving equipment such as motors. In case of emergency, the battery packs are switched to the parallel state to provide low voltage and high current power supply, which can power large-scale low-voltage emergency lighting equipment.

[0018] The present invention cooperates with the structures such as the telescopic plate, the matching V-convex, the secondary toothed disc and the external rack, so that when the switch movable plate is not stuck during the pushing and moving process, the telescopic plate directly drives the switch movable plate to ensure the switching speed; and when the switch movable plate is stuck during the pushing and moving process, the structural setting can be utilized to greatly increase the driving force for the switch movable plate by reducing the switching speed, thereby reducing the probability of jamming; through the above-mentioned structural coordination, the switching speed can be guaranteed in normal use, and the driving force can be taken into account to reduce the probability of jamming when it is stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle.

[0021] Figure 3 for Figure 2 A magnified schematic diagram of area A in the middle.

[0022] Figure 4 for Figure 2 Enlarged schematic diagram of area B in the middle.

[0023] Figure 5 It is a top view of the overall structure of the present invention.

[0024] Figure 6It is a three-dimensional half-section schematic diagram of the L-shaped series connection member of the present invention at a horizontal angle.

[0025] Figure 7 It is a schematic diagram of the explosion of the present invention.

[0026] Figure 8 for Figure 7 Enlarged schematic diagram of area C in the middle.

[0027] Fig. 9 for Figure 7 Enlarged schematic diagram of area D in the middle.

[0028] Fig.10 It is a schematic diagram of explosion from another angle of the present invention.

[0029] Fig.11 for Fig.10 Enlarged schematic diagram of area E in the middle.

[0030] In the figure: 1, battery cell; 2, sub-control seat; 3, L-shaped series member; 4, conduction contact platform; 5, insulating chassis; 6, bridge slide plate; 7, switching movable plate; 8, chassis pressure strip; 701, side wing support plate; 702, fixed sleeve; 703, embedded guide rod; 704, parallel plug; 705, rebound groove; 706, braided conductive belt; 707, parallel slot; 501, telescopic controller; 502, telescopic plate; 503, plate side teeth teeth; 504, locking V groove; 505, matching V convex; 506, elastic connecting rod; 507, fixing pin; 508, gear pin hole; 509, adjusting pressure pin; 510, fixing embedded shaft; 511, bottom gear plate; 512, secondary gear plate; 513, external rack; 601, elastic contact piece; 101, electrode boss; 102, boss screw hole; 201, positioning bottom groove; 202, seat body screw; 203, head and tail external connecting grooves. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 11 The present invention provides a technical solution: a combined ship battery pack that can be used in parallel, such as Figure 7As shown in the figure, it includes several groups of battery cells 1 and sub-control seats 2 installed on the battery cells 1. The battery cells 1 and the sub-control seats 2 are conductively connected. The sub-control seats 2 are connected with L-shaped series members 3, and the L-shaped series members 3 are connected with conductive contact platforms 4. An insulating base frame 5 is fixedly provided on the outside of the battery cells 1, and the L-shaped series members 3 and the conductive contact platforms 4 are both embedded and installed in the insulating base frame 5.

[0033] A bridge slide 6 is provided in the insulating chassis 5. When the bridge slide 6 is in conductive contact with the conductive contact platform 4, several groups of battery cells 1 can be connected in series through the cooperation of the L-shaped series member 3 and the bridge slide 6; a switching movable plate 7 is provided above the insulating chassis 5, and the bridge slide 6 is embedded and fixed on the switching movable plate 7. The bridge slide 6 is driven to be in conductive contact or separated from the conductive contact platform 4 through the reciprocating sliding of the switching movable plate 7; a parallel waiting structure is provided on the outside of the switching movable plate 7. When the switching movable plate 7 drives the bridge slide 6 to separate from the conductive contact platform 4, several groups of battery cells 1 are connected in parallel through the parallel waiting structure.

[0034] A base frame pressure strip 8 is detachably mounted on the insulating base frame 5, and the base frame pressure strip 8 is used to press and limit the switching movable plate 7. Figure 2 As shown in the figure, the base frame pressure strip 8 and the insulating base frame 5 are detachably fixed by screws. The switching movable plate 7, the base frame pressure strip 8 and the insulating base frame 5 are all made of plastic insulating materials. The sub-control seat 2, the L-shaped series connection member 3, the conduction contact platform 4 and the bridge slide plate 6 are all made of metal conductors.

[0035] The parallel waiting structure specifically includes a side wing support plate 701 and a fixed sleeve 702. The side wing support plate 701 and the fixed sleeve 702 are made of insulating materials. The switching movable plate 7, the side wing support plate 701 and the fixed sleeve 702 are fixedly arranged in one piece.

[0036] An embedded guide rod 703 is fixedly inserted on the fixed sleeve 702, and a parallel plug 704 is fixedly set on the embedded guide rod 703. A parallel slot 707 is opened on the sub-control seat 2. The parallel plug 704 and the parallel slot 707 correspond to each other. When the switching moving plate 7 drives the bridge pass slide 6 to separate from the conduction contact platform 4, the parallel plug 704 will be inserted into the parallel slot 707 to realize conduction contact.

[0037] A rebound groove 705 is provided in the parallel plug 704, and a braided conductive belt 706 is provided on the embedded guide rod 703 for conduction connection; the embedded guide rod 703, the parallel plug 704 and the braided conductive belt 706 are all metal conductors.

[0038] The embedded guide rod 703 is conductively connected to another corresponding sub-control seat 2 through the braided conductive tape 706, so that when the parallel plug 704 is inserted into the parallel slot 707, the same polarity of the battery cells 1 is conductively connected to achieve parallel connection.

[0039] A telescopic controller 501 is fixedly arranged on the insulating base frame 5, and a telescopic plate 502 is arranged in the telescopic controller 501. The telescopic plate 502 is controlled to telescopically move by the telescopic controller 501. In one embodiment, the telescopic controller 501 is internally composed of a screw rod, a sleeve, and a motor. The motor drives the screw rod to rotate, so that the sleeve moves. The sleeve is fixedly installed with the telescopic plate 502 to achieve synchronous movement. In another embodiment, the telescopic controller 501 is internally composed of an electromagnet, a spring, a magnetic plate, and other structures, and is controlled by electromagnetic principles.

[0040] The telescopic plate 502 is provided with plate side teeth 503 and a locking V-groove 504, and the locking V-groove 504 is provided with a matching V-convex 505. The telescopic plate 502 is limited by the matching V-convex 505 and the locking V-groove 504, so that the telescopic plate 502 can drive the switching movable plate 7 to move synchronously when it is telescopically moved.

[0041] An elastic connecting rod 506 is arranged above the switching movable plate 7, and a fixing pin 507 is embedded and installed at one end of the elastic connecting rod 506. The elastic connecting rod 506 is fixedly installed with the switching movable plate 7 through the fixing pin 507, and the other end of the elastic connecting rod 506 is fixedly installed with the matching V-convex 505; when the matching V-convex 505 is squeezed out of the locking V-groove 504, the matching V-convex 505 will exert pressure on the elastic connecting rod 506, so that the elastic connecting rod 506 is elastically bent.

[0042] A gear pin hole 508 is opened on the surface of the switching movable plate 7, and an adjusting pressure pin 509 is inserted in the gear pin hole 508. The elastic connecting rod 506 is blocked and supported by the adjusting pressure pin 509. Changing the position of the adjusting pressure pin 509 can change the bending position of the elastic connecting rod 506 when it is subjected to the pressure of the matching V-convex 505.

[0043] A fixed embedded shaft 510 is fixedly set on the switching movable plate 7, and the external rotating sleeve of the fixed embedded shaft 510 is provided with a bottom gear disc 511 and a secondary gear disc 512. The bottom gear disc 511 and the secondary gear disc 512 are coaxially fixedly installed, and the diameter of the bottom gear disc 511 is larger than the diameter of the secondary gear disc 512.

[0044] An external rack 513 is fixedly provided on the chassis pressure strip 8, and the external rack 513 is meshed with the secondary toothed disc 512; when the mating V-protrusion 505 is stuck in the locking V-groove 504, the plate side teeth 503 and the bottom toothed disc 511 do not contact each other, and when the telescopic plate 502 is extended so that the mating V-protrusion 505 is disengaged from the locking V-groove 504, the plate side teeth 503 will contact and mesh with the bottom toothed disc 511.

[0045] An elastic contact sheet 601 is disposed on the lower surface of the bridge slide 6 , and the bridge slide 6 is elastically pressed and conductively contacted with the conductive contact platform 4 through the elastic contact sheet 601 .

[0046] A power supply system includes a combined ship battery pack that can be used in parallel and a line switching relay. The line switching relay is used to change the connection circuit of the combined ship battery pack that can be used in parallel. The line switching relay is composed of a relay and a relay control module, and can realize line switching. It is an existing common technology and will not be described in detail in this application.

[0047] like Figure 7 As shown in , the battery cell 1 is provided with an electrode boss 101 , and each battery cell 1 is provided with two electrode bosses 101 , which correspond to the positive electrode and the negative electrode of the battery cell 1 , respectively. The electrode boss 101 is provided with a boss screw hole 102 .

[0048] like Fig.11 As shown in the figure, a positioning bottom groove 201 is provided on the lower surface of the sub-control seat 2, and the electrode boss 101 is correspondingly stuck in the positioning bottom groove 201. A seat body screw 202 is provided in the sub-control seat 2, and the sub-control seat 2 and the electrode boss 101 are connected and fixedly installed through the spiral cooperation of the seat body screw 202 and the boss screw hole 102.

[0049] like Figure 1 As shown in FIG. 1 , the sub-control seats 2 at the head and tail ends of the battery pack are respectively provided with head and tail external connection slots 203 , and the external circuit is electrically connected to the battery pack through the head and tail external connection slots 203 .

[0050] The present invention is connected to the external circuit through the line switching relay when in use. Under normal use, the battery pack supplies power to external motor equipment through the line switching relay, such as non-safety motor equipment such as electric lifting seats in ships. At this time, the bridge slide 6 will bridge the contact platform 4, such as Figure 6 As shown in FIG. 1 , the battery pack is connected in series through an L-shaped series connection member 3 and a conductive contact platform 4 to provide a high voltage to equipment such as a motor.

[0051] When the ship enters an emergency state, the line switching relay first disconnects the power supply connection between the battery pack and the motor equipment, and then the telescopic controller 501 is energized to control the telescopic plate 502 to extend, and the telescopic plate 502 drives the switching movable plate 7 to move, so that the bridge slide plate 6 and the conductive contact platform 4 are staggered and separated. At this time, the battery pack is cut off from the series connection, and as the switching movable plate 7 continues to move, as shown in FIG. Figure 4 As shown in the figure, the switching moving plate 7 drives the fixed sleeve 702 and the parallel plug 704 and other structures to move, so that the parallel plug 704 is inserted into the parallel slot 707. At this time, the same polarity of the battery cells 1 are connected to each other, so that several groups of battery cells 1 are in a parallel state. Then the line switching relay controls the battery group to be connected to the large-scale emergency lighting equipment in the ship.

[0052] like Figure 3As shown in the figure, in the process of the telescopic plate 502 driving the switching movable plate 7 to move by telescoping, when the switching movable plate 7 and its accessory structure are stuck, the switching movable plate 7 will not move as the telescopic plate 502 is extended, so there will be relative movement between the telescopic plate 502 and the matching V-convex 505. The thrust required for the matching V-convex 505 to be squeezed out of the locking V-groove 504 is pre-set to be slightly smaller than the extension thrust of the telescopic plate 502, so that when the switching movable plate 7 and its accessory structure are stuck, the matching V-convex 505 can be squeezed out of the locking V-groove 504.

[0053] As the telescopic plate 502 continues to extend, the plate side teeth 503 will come into contact and engage with the bottom toothed disc 511, and the plate side teeth 503 will push the bottom toothed disc 511 to rotate, causing the secondary toothed disc 512 to rotate. Since the diameter of the bottom toothed disc 511 is greater than the diameter of the secondary toothed disc 512, according to the lever principle, the engagement of the secondary toothed disc 512 with the external rack 513 can generate a greater driving force, driving the switching movable plate 7 to move, so that the switching movable plate 7 is unstuck.

[0054] When setting the thrust required for the V-shaped protrusion 505 to be squeezed out of the locking V-shaped groove 504, the position of the pressure pin 509 can be changed, such as Figure 3 As shown in , the closer the adjustment pin 509 is to the end where the matching V-shaped protrusion 505 is located, the more difficult it is for the elastic connecting rod 506 to bend elastically when the matching V-shaped protrusion 505 is subjected to the same extrusion force, thereby achieving thrust adjustment.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined marine battery pack that can be used in parallel, comprising a plurality of battery cells and a sub-control seat mounted on the battery cells, wherein the battery cells and the sub-control seat are electrically connected, and characterized in that: The sub-control seat is connected with an L-shaped series member, and the L-shaped series member is connected with a conducting contact platform. The battery cell is fixedly provided with an insulating base frame on the outside, and the L-shaped series member and the conducting contact platform are both embedded and installed in the insulating base frame. The insulating chassis is provided with a bridge slide plate, and when the bridge slide plate is in conductive contact with the conductive contact platform, a plurality of battery cells can be connected in series through the cooperation of the L-shaped series connection member and the bridge slide plate; A switching movable plate is arranged above the insulating chassis, and the bridge slide plate is embedded and fixed on the switching movable plate. The bridge slide plate is driven to make contact or separate with the conducting contact platform through the reciprocating sliding of the switching movable plate. The switching movable plate is provided with a parallel waiting structure outside. When the switching movable plate drives the bridge through sliding plate and the conducting contact stage to separate, several groups of battery monomers are connected in parallel through the parallel waiting structure.

2. The combined marine battery pack that can be used in parallel according to claim 1, characterized in that: A base frame pressure strip is detachably mounted on the top of the insulating base frame, and the switching movable plate is pressed and limited by the base frame pressure strip.

3. The combined marine battery pack that can be used in parallel according to claim 1, characterized in that: The parallel waiting structure specifically includes a side wing support plate and a fixed sleeve, and the switching movable plate, the side wing support plate and the fixed sleeve are integrally fixedly arranged.

4. The combined marine battery pack that can be used in parallel according to claim 3 is characterized in that: An embedded guide rod is fixedly inserted on the fixed sleeve, a parallel plug is fixedly installed on the embedded guide rod, a parallel slot is opened on the sub-control seat, the parallel plug and the parallel slot correspond to each other, when the switching moving plate drives the bridge to separate the conduction slide plate from the conduction contact platform, the parallel plug will be inserted into the parallel slot to realize conduction contact.

5. The combined marine battery pack that can be used in parallel according to claim 4 is characterized in that: A rebound groove is provided in the parallel plug, and a braided conductive belt is provided on the embedded guide rod for conduction connection; The embedded guide rod is conductively connected to another corresponding sub-control seat through a braided conductive belt, so that when the parallel plug is inserted into the parallel slot, the same polarity of the battery cells is conductively connected to achieve parallel connection.

6. The combined marine battery pack that can be used in parallel according to claim 2, characterized in that: A telescopic controller is fixedly arranged on the insulating base frame, a telescopic plate is arranged in the telescopic controller, and the telescopic movement of the telescopic plate is controlled by the telescopic controller.

7. The combined marine battery pack that can be used in parallel according to claim 6, characterized in that: The telescopic plate is provided with plate side teeth and a locking V-groove, and a matching V-convex is provided in the locking V-groove. The telescopic plate is limited by the matching V-convex and the locking V-groove, so that the telescopic plate can drive the switching movable plate to move synchronously when the telescopic plate moves telescopically.

8. The combined marine battery pack that can be used in parallel according to claim 7, characterized in that: An elastic connecting rod is arranged above the switching movable plate, one end of the elastic connecting rod is embedded with a fixing pin, the elastic connecting rod is fixedly installed with the switching movable plate through the fixing pin, and the other end of the elastic connecting rod is fixedly installed with a matching V-convex; When the mating V-shaped projection is squeezed out of the locking V-shaped groove, the mating V-shaped projection exerts pressure on the elastic connecting rod, causing the elastic connecting rod to bend elastically.

9. The combined marine battery pack that can be used in parallel according to claim 8, characterized in that: A gear pin hole is provided on the surface of the switching movable plate, and an adjusting pressure pin is inserted into the gear pin hole. The elastic connecting rod is blocked and supported by the adjusting pressure pin. Changing the position of the adjusting pressure pin can change the bending position of the elastic connecting rod when it is subjected to the matching V-convex pressure.

10. The combined marine battery pack that can be used in parallel according to claim 9, characterized in that: A fixed embedded shaft is fixedly arranged on the switching movable plate, and an external rotating sleeve of the fixed embedded shaft is provided with a bottom gear disc and a secondary gear disc, the bottom gear disc and the secondary gear disc are coaxially fixedly installed, and the diameter of the bottom gear disc is larger than the diameter of the secondary gear disc.

11. The combined marine battery pack that can be used in parallel according to claim 10, characterized in that: An external rack is fixedly provided on the bottom frame pressure strip, and the external rack is meshed with the secondary gear disc; When the mating V-convex is stuck in the locking V-groove, the plate side teeth and the bottom gear disc do not contact each other. When the telescopic plate is extended to make the mating V-convex disengage from the locking V-groove, the plate side teeth will contact and engage with the bottom gear disc.

12. The combined marine battery pack that can be used in parallel according to claim 1, characterized in that: An elastic contact sheet is disposed on the lower surface of the bridge slide, and the bridge slide is elastically pressed and conductively contacted with the conductive contact platform through the elastic contact sheet.

13. A power supply system, characterized in that: The invention comprises a combined ship battery pack that can be used in parallel and a line switching relay as described in any one of claims 1 to 12, and the connection circuit of the combined ship battery pack that can be used in parallel is changed by the line switching relay.

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