A new energy tanker power battery pack

Abstract

The present invention discloses a new energy tanker power battery pack, which belongs to the field of commercial new energy battery technology, and includes a box body with a chamber and a plurality of groups of module battery cells contained in the chamber, and the module battery cells are connected with a power connection interface through a conductive member, and there is a gap between adjacent module battery cells, and a clamping mechanism for fixing the module battery cells in the box body chamber is provided in the gap, and a partition is provided on the inner side of the box body chamber. In the present invention, through the designed interface limiting mechanism, through the power connection interface that can be flexibly extended toward the frame direction, the installation space occupied by the power connection interface during battery replacement is reduced, which is conducive to further increasing the thickness of the battery cell of the battery pack that can be installed, and the plug-in part can be used to connect the power connection interface with the reserved plug-in slot of the frame, so as to improve the stability and vibration resistance of the power connection interface after plugging, and meet the movement passability of the tanker in the production operation area.

Description

Technical Field

[0001] The present invention belongs to the technical field of commercial new energy batteries, and in particular relates to a new energy tank truck power battery pack. Background Art

[0002] While the passenger car market is accelerating its transition to electric vehicles and plug-in hybrid vehicles, the commercial vehicle and heavy truck market is also beginning to replace them with new energy products. New energy tank trucks have good applicability in medium and short-distance oil transportation, but due to the large load of tank trucks, new energy power batteries are large in size and can easily occupy the battery compartment space of the vehicle frame.

[0003] The invention patent of Chinese patent publication number CN116373582B discloses a battery replacement box and installation method. The battery replacement box includes: a battery frame, a battery pack, an auxiliary frame, and a box connector; the battery frame is set as a hollow frame structure; the battery pack is detachably connected to the battery frame; part of the battery pack is fitted with the first mounting surface of the battery frame and extends in a direction away from the battery frame; the auxiliary frame is detachably connected to the battery frame; the auxiliary frame is set at one end of the length direction of the battery frame; the box connector is detachably connected to the auxiliary frame; the box connector is coupled and connected to the battery pack; the box connector is fitted with the second mounting surface of the auxiliary frame and extends in a direction away from the auxiliary frame; the distance that the box connector extends from the second mounting surface is less than the distance that the battery pack extends from the first mounting surface. The above technical solution can initially reduce the problems of chassis battery replacement mode and insufficient installation space, but because the load of the tank truck itself is flammable, it has high requirements for explosion-proof performance during battery replacement, so there is room for improvement. Summary of the invention

[0004] The purpose of the present invention is to propose a new energy tank truck power battery pack in order to solve the problem that the load of the tank truck itself is flammable and has high requirements for explosion-proof performance during battery replacement.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A new energy tanker power battery pack comprises a box body with a chamber and a plurality of groups of module battery cells contained in the chamber, wherein the module battery cells are connected to a power connection interface through a conductive member, there is a gap between adjacent module battery cells, and a clamping mechanism for fixing the module battery cells in the box body chamber is provided in the gap, a partition is provided inside the box body chamber, and a receiving seat is installed in the gap between the partition and the inside of the box body chamber;

[0007] The power connection interface is slidably connected to a receiving seat fixed on the front side of the box cavity, and the bottom of the power connection interface is connected to the partition through an elastic bag sleeve, and interface limiting mechanisms are provided on both sides of one end of the front side of the box cavity away from the module battery unit, and the interface limiting mechanism includes a plug-in component that moves along the length direction of the power connection interface, and a driving component accommodated in the cavity is provided at the bottom of the plug-in component, and an extrusion rod is connected to the middle of one side of the plug-in component, and the extrusion rod is penetrated into a through hole opened in the side wall of the receiving seat, and triangular wedge blocks are connected to the positions of the plug-in components on both sides of the power connection interface corresponding to the plug-in components, and the extrusion rod is moved by the plug-in component to push the triangular wedge block to move the power connection interface upward, and be plug-connected with the power connection port at the bottom of the frame, and the plug-in component is placed in the reserved plug-in slot of the frame for limit locking.

[0008] As a further description of the above technical solution:

[0009] A buckle is provided on the top of the connector, and a slot for the buckle to be moved into and locked is opened in the battery compartment of the frame. The driving member includes an electric push rod, which is connected to the middle part of one side of the connector close to the extrusion rod, and the other end of the electric push rod is connected to the bottom of the accommodating seat through a mounting plate.

[0010] As a further description of the above technical solution:

[0011] The first spring is sleeved on the outside of the extrusion rod, and the two ends of the first spring are respectively connected to the corresponding positions of the connector and one side of the accommodating seat. The top of the triangular wedge block is connected to a force block, and the force block is integrally connected to one side of the power interface.

[0012] As a further description of the above technical solution:

[0013] The elastic bag sleeve is an elastic plastic component, and a pressure relief pipe is provided in the inner cavity of the elastic bag sleeve. A safety explosion-proof mechanism is provided on the top of the power connection interface, and one end of the pressure relief pipe is connected to the bottom interface of the safety explosion-proof mechanism, and the other end of the pressure relief pipe is connected to one side of the partition, and the partition forms an electrolyte pressure relief pipeline with the electrolyte channel of the module battery unit through the internal flow channel, and the pressure relief is guided when the internal pressure of the module battery unit increases through the safety explosion-proof mechanism.

[0014] As a further description of the above technical solution:

[0015] The safety explosion-proof mechanism includes an explosion-proof seat, both sides of which are embedded with closed sleeves, and the closed sleeves on both sides are respectively embedded with a force-bearing diaphragm and a closed plug, and the force-bearing diaphragm is located at one end of the explosion-proof seat close to the pressure relief pipe, and the top two sides of the force-bearing diaphragm are connected to the bottom of the closed plug through guide rods, and the closed plug is separated from the closed sleeve and the pressure is released by the pressure-bearing movement of the force-bearing diaphragm.

[0016] As a further description of the above technical solution:

[0017] A second telescopic rod is connected to the top of the stress-bearing diaphragm, and the second telescopic rod includes a telescopic portion and a fixed portion connected to one side of the stress-bearing diaphragm, and the telescopic portion and the fixed portion are nested and telescopic with each other, and the other end of the fixed portion of the second telescopic rod is connected to one side of the inner cavity of the explosion-proof seat through a connecting plate, and a third spring is sleeved on the outer side wall of the telescopic portion of the second telescopic rod, and two ends of the third spring are respectively connected to one side of the fixed portion of the second telescopic rod and one side of the stress-bearing diaphragm, and the stress-bearing diaphragm is resisted by the elastic force of the third spring to increase the pressure relief pressure.

[0018] As a further description of the above technical solution:

[0019] The clamping mechanism includes a heat sink, which is filled with a heat dissipation medium, and a plurality of heat exchange grooves are provided on both sides of the heat sink, and heat exchange columns are inserted and connected in the heat exchange grooves, and a heat spreader is connected between the heat exchange columns in the same row, and the heat spreader is connected to one side of the module battery cell unit at the corresponding position, and collapse grooves are provided on both sides of the heat sink away from the heat exchange grooves, and the impact of the movement of adjacent module battery cell units is absorbed by the deflection of the collapse grooves.

[0020] As a further description of the above technical solution:

[0021] A guiding mechanism is connected to the bottom of the accommodating seat, and the guiding mechanism includes a guiding frame connected to both sides of the bottom of the accommodating seat, travel grooves are opened on both sides of the guiding frame, and the inner cavity of the travel groove is fixedly connected to a first telescopic rod through a plate body, one end of the telescopic portion of the first telescopic rod is connected to an extrusion plate, and a second spring is sleeved on the outer wall of the first telescopic rod, and the two ends of the second spring are respectively connected to the extrusion plate and corresponding positions on one side of the plate body, an axis body is attached to the inner side of the extrusion plate, and a guiding roller is connected between the axis bodies on both sides, and a plurality of wire seats are equidistantly arranged on the outer peripheral side of the guiding roller along the axis line, and the wiring harness is guided into the accommodating seat and the elastic bag sleeve through the wire seat and connected to the power connection interface.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. In the present invention, the designed interface limiting mechanism can shorten and pull the connector to move after the box body is in place in the battery compartment through the electric push rod. The connector can drive the pressure rod to squeeze the inclined surface of the triangular wedge block. The triangular wedge block can pull the force block and the power connection interface upward to couple with the power connection port of the frame when squeezed, and reduce the installation space occupied by the power connection interface during battery replacement through the power connection interface that can be flexibly extended toward the frame, which is conducive to further increasing the thickness of the battery cell that can be installed in the battery pack. The connector can be used to connect the power connection interface with the reserved plug-in slot of the frame, so as to improve the stability and vibration resistance of the power connection interface after plugging in, meet the movement passability of the tank truck in the production operation area, and adapt to the longitudinal impact of the power connection interface on bumpy roads.

[0024] 2. In the present invention, through the designed pressure relief pipe and safety explosion-proof mechanism, when the module battery unit increases pressure due to impact or accident, the stressed diaphragm located at the end of the pressure relief pipe can overcome the elastic force limitation of the third spring due to pressure, and the stressed diaphragm can move to open the gap between it and the closing sleeve, and the movement of the stressed diaphragm can push the closing plug to move through the guide rod, and the high-pressure gas or liquid entering the explosion-proof seat can be guided and discharged outward through the gap opened by the closing plug, which is beneficial to avoid the module battery unit from deflagration and short circuit through pressure relief, and can improve the safety in the battery pack. After the pressure is partially discharged, the third spring can use its own elastic force to drive the extension portion of the second telescopic rod to extend and drive the stressed diaphragm to reset, which is beneficial to improve the explosion-proof guiding effect of the battery pack through self-pressure relief of the pressure in the module battery unit.

[0025] 3. In the present invention, through the designed clamping mechanism, the module battery cell unit can be inserted into the heat exchange groove through the heat spreaders connected on both sides, which is conducive to coupling and limiting the module battery cell unit through the heat sink, avoiding displacement of the module battery cell unit in the box, and avoiding temperature increase from affecting the working stability of the module battery cell unit through heat exchange between the heat sink, the heat spreader and the heat exchange column. When the module battery cell unit is impacted, most of the impact is absorbed by the deflection of the collapse groove, and the heat dissipation and energy absorption effect is ensured by the independently separated heat sink, thereby improving the stability of the module battery cell unit device, and arranging the connecting wire harness of the module battery cell unit on the wire holder and the peripheral side of the guide roller, and sliding the guide roller shaft body in the stroke groove to squeeze the second spring outside the first telescopic rod, the second spring can absorb the traction of the wire harness by its own elastic force, thereby improving the traction arrangement stability, and the traction of the guide roller and the wire holder driven by the second spring increases the redundancy of the wire harness arranged in the box, thereby improving the wiring stability of the module battery cell unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a new energy tanker power battery pack proposed by the present invention;

[0027] Figure 2 This is a schematic diagram of the disassembled structure of a power battery pack for a new energy tanker truck proposed by the present invention;

[0028] Figure 3 The present invention proposes Figure 2 The structural diagram of the enlarged part A in the middle;

[0029] Figure 4 This is a schematic diagram of a side half-section structure of a power battery pack for a new energy tanker truck proposed by the present invention;

[0030] Figure 5 This is a schematic diagram of the assembly structure of an interface limiting mechanism of a power battery pack of a new energy tanker truck proposed by the present invention;

[0031] Figure 6 The present invention proposes Figure 5 The enlarged structural diagram of part B in the middle;

[0032] Figure 7 This is a schematic structural diagram from another angle of a new energy tanker power battery pack proposed by the present invention;

[0033] Figure 8 This is a schematic diagram of the safety explosion-proof structure of a power battery pack for a new energy tanker truck proposed by the present invention;

[0034] Fig. 9 This is a schematic diagram of the disassembled structure of a safety explosion-proof mechanism of a power battery pack for a new energy tanker truck proposed by the present invention;

[0035] Fig.10 A schematic diagram of a half-section structure of a safety explosion-proof mechanism of a power battery pack for a new energy tanker truck proposed by the present invention;

[0036] Fig.11 This is a schematic diagram of the structure of a safety explosion-proof mechanism guide mechanism for a power battery pack of a new energy tanker truck proposed by the present invention;

[0037] Fig.12 The present invention proposes Fig.11 Schematic diagram of the enlarged structure of part C.

[0038] Legend:

[0039] 1. Box body; 2. Cover plate; 3. Power connection interface; 4. Interface limit mechanism; 401. Connector; 402. Electric push rod; 403. Mounting plate; 404. Extrusion rod; 405. First spring; 406. Triangular wedge block; 407. Force block; 5. Guide mechanism; 501. Guide frame; 502. First telescopic rod; 503. Second spring; 504. Extrusion plate; 505. Shaft body; 506. Guide roller; 507, wire seat; 6, clamping mechanism; 601, heat sink; 602, heat exchange column; 603, heat spreader; 604, collapse groove; 7, elastic bag sleeve; 8, accommodating seat; 9, safety explosion-proof mechanism; 901, explosion-proof seat; 902, closing sleeve; 903, force-bearing diaphragm; 904, guide rod; 905, closing plug; 906, second telescopic rod; 907, third spring; 10, partition. DETAILED DESCRIPTION

[0040] 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.

[0041] See also Figure 1-Figure 12 The present invention provides a technical solution: a new energy tanker power battery pack, comprising a box body 1 with a chamber and a plurality of groups of module battery cells contained in the chamber, wherein a cover plate 2 is sealed and connected to the top of the box body 1 near the top of the module battery cell unit, and the plurality of groups of module battery cell units are arranged in an array, and the module battery cell units are connected to a power connection interface 3 through a conductive member, wherein the conductive member can be a flexible power connection bar, a connecting piece, a wiring harness or a terminal made of conductive metal such as copper or aluminum, etc., there is a gap between adjacent module battery cells, and a clamping mechanism 6 for fixing the module battery cell unit in the chamber of the box body 1 is provided in the gap, and a partition 10 is provided inside the chamber of the box body 1, and a receiving seat 8 is installed in the gap between the partition 10 and the inside of the chamber of the box body 1;

[0042] The power interface 3 is slidably connected to the accommodating seat 8 fixed at the front side of the chamber of the box body 1, and the bottom of the power interface 3 is connected to the partition 10 through the elastic bag sleeve 7, and the interface limiting mechanism 4 is provided on both sides of the end of the front side of the chamber of the box body 1 away from the module battery unit, and the interface limiting mechanism 4 includes a plug-in connector 401 that moves along the length direction of the power interface 3, and a driving member accommodated in the chamber is provided at the bottom of the plug-in connector 401. An extrusion rod 404 is connected to the middle of one side of the plug-in connector 401, and the extrusion rod 404 is penetrated in the through hole opened in the side wall of the accommodating seat 8. The positions of the plug-in connector 401 on both sides of the power interface 3 are connected to triangular wedge blocks 406. The extrusion rod 404 is moved by the plug-in connector 401 to push the triangular wedge block 406 to move the power interface 3 upward, and plug-in and connect with the power interface at the bottom of the frame, and the plug-in connector 401 is placed in the reserved plug-in slot of the frame for limit locking;

[0043] A buckle is provided on the top of the connector 401, and a slot for the buckle to be moved into and locked is provided in the battery compartment of the frame. The driving member includes an electric push rod 402, which is connected to the middle of one side of the connector 401 close to the extrusion rod 404, and the other end of the electric push rod 402 is connected to the bottom of the accommodating seat 8 through a mounting plate 403;

[0044] A first spring 405 is sleeved on the outside of the extrusion rod 404, and the two ends of the first spring 405 are respectively connected to the corresponding positions of the plug-in component 401 and the accommodating seat 8. A force block 407 is connected to the top of the triangular wedge block 406, and the force block 407 is integrally connected to one side of the power interface 3.

[0045] Specifically: through the designed interface limiting mechanism 4, when the box body 1 is installed in the battery compartment reserved at the bottom of the tank truck frame, the box body 1 can be installed in the battery compartment and then connected to the power port at the bottom of the frame through the power interface 3, and the outer side of the box body 1 can be limited and protected by the movable snap-in assembly outside the frame. When the power of a single battery pack is exhausted and needs to be replaced, after the frame loosens the limit of the box body 1, the electric push rod 402 of the interface power replacement assembly can be extended with the connector 401 and the extrusion rod 404 separated from the triangular wedge block 406 at the corresponding position. At this time, the elastic bag sleeve 7 can use its own elastic force to pull the power interface 3 to separate from the power port of the frame, complete the buckle loosening during the power replacement process, and When the battery is connected to the frame, after the box body 1 is in place in the battery compartment, the electric push rod 402 can work to shorten and pull the connector 401 to move, and the connector 401 can drive the extrusion rod 404 to squeeze the inclined surface of the triangular wedge block 406. The triangular wedge block 406 can pull the force block 407 and the power connection interface 3 to move upward when squeezed, and couple with the power connection port of the frame to connect the power. The power connection interface 3 extending toward the frame can further reduce the installation space occupied by the power connection interface 3 during battery replacement, which is conducive to further increasing the thickness of the battery cell that can be installed in the battery pack, and the connector 401 can be used to engage the power connection interface 3 with the reserved plug-in slot of the frame, so as to improve the stability and vibration resistance of the power connection interface 3 after plugging.

[0046] Furthermore, the elastic bag sleeve 7 is designed to avoid the exposed section of the coupling position between the closed module battery unit electrical connection piece and the electrical connection interface 3, which is beneficial to improve the stability of the wiring harness connection closure, and can use its own elastic force to absorb external impact, reduce the influence of slight displacement and external dust and impurities on the electrical connection interface 3;

[0047] Among them, in this embodiment, the power connection interface 3 includes at least one charging harness connection terminal and a generator power supply connection terminal and a harness interface of the power management system. This part can be understood and implemented by technical personnel in this field and will not be elaborated on again.

[0048] See also Figure 5 and Figure 8-Figure 10 The elastic bag cover 7 is an elastic plastic component, a pressure relief pipe is provided in the inner cavity of the elastic bag cover 7, a safety explosion-proof mechanism 9 is provided on the top of the power connection interface 3, and one end of the pressure relief pipe is connected to the bottom interface of the safety explosion-proof mechanism 9, and the other end of the pressure relief pipe is connected to one side of the partition 10, and the partition 10 forms an electrolyte pressure relief pipeline with the electrolyte channel of the module battery unit through the internal flow channel, and the safety explosion-proof mechanism 9 is used to guide the pressure relief when the internal pressure of the module battery unit increases;

[0049] The safety explosion-proof mechanism 9 includes an explosion-proof seat 901, and a closed sleeve 902 is embedded on both sides of the explosion-proof seat 901, and a force-bearing diaphragm 903 and a closed plug 905 are respectively embedded in the closed sleeves 902 on both sides, and the force-bearing diaphragm 903 is located at one end of the explosion-proof seat 901 close to the pressure relief pipe, and the two sides of the top of the force-bearing diaphragm 903 are connected to the bottom of the closed plug 905 through a guide rod 904, and the closed plug 905 is pushed to separate from the closed sleeve 902 and release pressure through the pressure-bearing diaphragm 903. The cross-sectional shape of the closed sleeve 902 is conical, and the cross-sectional shape of the closed plug 905 is a cone that matches the closed sleeve 902, so that the pressure relief gap is fully opened after the closed plug 905 moves;

[0050] A second telescopic rod 906 is connected to the top of the stress-bearing diaphragm 903. The second telescopic rod 906 includes a telescopic portion and a fixed portion connected to one side of the stress-bearing diaphragm 903, and the telescopic portion and the fixed portion are nested and telescopic with each other. The other end of the fixed portion of the second telescopic rod 906 is connected to one side of the inner cavity of the explosion-proof seat 901 through a connecting plate. A third spring 907 is sleeved on the outer side wall of the telescopic portion of the second telescopic rod 906. Two ends of the third spring 907 are respectively connected to one side of the fixed portion of the second telescopic rod 906 and one side of the stress-bearing diaphragm 903. The elastic force of the third spring 907 resists the stress-bearing diaphragm 903 to increase the pressure relief pressure.

[0051] Specifically, through the designed pressure relief pipe and safety explosion-proof mechanism 9, when the module battery cell unit increases pressure due to impact or accident, the stressed diaphragm 903 located at the end of the pressure relief pipe can overcome the elastic force limitation of the third spring 907 due to pressure, and at this time, the stressed diaphragm 903 can move to open the gap between it and the closing sleeve 902, and the movement of the stressed diaphragm 903 can push the closing plug 905 to move through the guide rod 904, and the high-pressure gas or liquid entering the explosion-proof seat 901 can be guided outward through the gap opened by the closing plug 905 to be discharged, which is beneficial to avoid the module battery cell unit from deflagration and short circuit through pressure relief, thereby improving the safety in the battery pack, and after the pressure is partially discharged, the third spring 907 can use its own elastic force to drive the extension of the telescopic part of the second telescopic rod 906 to drive the stressed diaphragm 903 to reset, which is beneficial to improve the explosion-proof guiding effect of the battery pack through self-pressure relief of the pressure in the module battery cell unit;

[0052] In another embodiment, in order to guide the exhaust pressure, a corresponding pressure relief passage is provided inside the box body 1 to the outside of the vehicle chassis.

[0053] See also Figure 2-Figure 4The clamping mechanism 6 includes a heat sink 601, which is filled with a heat dissipation medium, and a plurality of heat exchange grooves are provided on both sides of the heat sink 601, and heat exchange columns 602 are inserted and connected in the heat exchange grooves, and a heat spreader 603 is connected between the heat exchange columns 602 in the same row, and the heat spreader 603 is connected to one side of the module battery cell unit at the corresponding position, and the heat sink 601 is provided with a collapse groove 604 on both sides away from the heat exchange groove, and the collapse groove 604 is bent to absorb the movement impact of the adjacent module battery cell unit, and the bottom of the accommodating seat 8 is connected to a guide mechanism 5, and the guide mechanism 5 includes a guide frame 501 connected to both sides of the bottom of the accommodating seat 8, and the guide frame 5 01 Both sides of the travel groove are provided, and the inner cavity of the travel groove is fixedly connected to the first telescopic rod 502 through the plate body, one end of the telescopic part of the first telescopic rod 502 is connected to the extrusion plate 504, and the outer wall of the first telescopic rod 502 is sleeved with a second spring 503, and the two ends of the second spring 503 are respectively connected to the extrusion plate 504 and the corresponding positions on one side of the plate body, and the inner side of the extrusion plate 504 is fitted with a shaft body 505, and guide rollers 506 are connected between the shaft bodies 505 on both sides, and a plurality of wire holders 507 are equidistantly arranged on the outer peripheral side of the guide roller 506 along the axis, and the wire harness is guided into the accommodating seat 8 and the elastic bag sleeve 7 through the wire holder 507 and connected to the power connection interface 3.

[0054] Specifically, through the designed clamping mechanism 6, the module battery unit can be inserted into the heat exchange groove through the heat spreader 603 connected on both sides, which is conducive to coupling and limiting the module battery unit through the heat sink 601, avoiding the displacement of the module battery unit in the box body 1, and through the heat exchange between the heat sink 601 and the heat spreader 603 and the heat exchange column 602, it can avoid the temperature rise affecting the stable operation of the module battery unit, and through the designed collapse groove 604, when the module battery unit is impacted, most of the impact can be absorbed by the deflection of the collapse groove 604, and the independently separated heat sink 601 can ensure The heat dissipation and energy absorption effect improves the stability of the module battery unit device, and through the designed guide mechanism 5, the connection wire harness of the module battery unit can be arranged on the wire holder 507 and the surrounding side of the guide roller 506, and the guide roller 506 shaft body 505 slides in the stroke groove to squeeze the second spring 503 outside the first telescopic rod 502. The second spring 503 can absorb the traction of the wire harness by its own elastic force, thereby improving the traction arrangement stability, and the traction of the guide roller 506 and the wire holder 507 driven by the second spring 503 increases the redundancy of the wire harness arranged in the box 1, thereby improving the wiring stability of the module battery unit;

[0055] In another embodiment, the heat sink 601 is connected to an external heat dissipation medium circulation system through an interface, and the heat dissipation medium circulation system can be arranged inside the box 1 or on the frame side.

[0056] Working principle: When in use, when the box body 1 is installed in the battery compartment reserved at the bottom of the tank truck frame, after the box body 1 is installed in the battery compartment, it is connected to the power port at the bottom of the frame through the power connection interface 3, and the outer side of the box body 1 is limited and protected by the movable clamping assembly outside the frame. When the power of a single battery pack is exhausted and needs to be replaced, the frame loosens the limit of the box body 1, and the electric push rod 402 of the interface replacement assembly works to extend the plug-in component 401 and the extrusion rod 404 and the triangular wedge block 40 at the corresponding position. 6 is separated, at this time, the elastic bag sleeve 7 uses its own elastic force to pull the power connection interface 3 and the frame power connection port to separate, completing the buckle loosening during the battery replacement process, and when the new battery is connected to the frame, after the box body 1 is in place in the battery compartment, the electric push rod 402 works to shorten and pull the plug-in component 401 to move, and the plug-in component 401 drives the extrusion rod 404 to squeeze the inclined surface of the triangular wedge block 406. When the triangular wedge block 406 is squeezed, it pulls the force block 407 and the power connection interface 3 upward to couple with the frame power connection port to connect the power;

[0057] When the module battery cell unit is subjected to an impact or an unexpected increase in pressure, the stress-bearing diaphragm 903 at the end of the pressure relief pipe overcomes the elastic force limitation of the third spring 907 due to the pressure. At this time, the stress-bearing diaphragm 903 moves to open the gap between it and the sealing sleeve 902, and the stress-bearing diaphragm 903 moves through the guide rod 904 to push the sealing plug 905 to move, and the high-pressure gas or liquid entering the explosion-proof seat 901 is guided outward through the gap opened by the sealing plug 905 to be discharged.

[0058] In the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A new energy tanker power battery pack, comprising a box body (1) having a chamber and a plurality of module battery cell units accommodated in the chamber, wherein the module battery cell units are connected to a power connection interface (3) via a conductive member, characterized in that: There is a gap between adjacent module battery cell units, and a clamping mechanism (6) for fixing the module battery cell unit in the chamber of the box (1) is provided in the gap, and a partition (10) is provided on the inner side of the chamber of the box (1), and a receiving seat (8) is installed in the gap between the partition (10) and the inner side of the chamber of the box (1); The power connection interface (3) is slidably connected to a receiving seat (8) fixedly arranged at the front side of the chamber of the box body (1), and the bottom of the power connection interface (3) is connected to the partition plate (10) through an elastic bag sleeve (7), and both sides of the end of the front side of the chamber of the box body (1) away from the module battery unit are provided with an interface limiting mechanism (4), the interface limiting mechanism (4) comprising a plug-in component (401) movable along the length direction of the power connection interface (3), a driving component accommodated in the chamber is provided at the bottom of the plug-in component (401), and the plug-in component (401) is provided with a driving component accommodated in the chamber, and the plug-in component ( A squeezing rod (404) is connected to the middle of one side of the vehicle frame, and the squeezing rod (404) is inserted into a through hole provided in the side wall of the accommodating seat (8). The positions of the plug connector (401) on both sides of the power connection interface (3) are connected to triangular wedge blocks (406). The plug connector (401) moves the squeezing rod (404) to push the triangular wedge block (406) so that the power connection interface (3) moves upward and is plugged and connected with the power connection port at the bottom of the vehicle frame, and the plug connector (401) is placed in a reserved plug slot of the vehicle frame to limit and lock. The connector (401) is provided with a buckle at the top, and a slot for the buckle to be moved into and locked is provided in the battery compartment of the vehicle frame, the driving member comprises an electric push rod (402), the electric push rod (402) is connected to the middle part of one side of the connector (401) close to the extrusion rod (404), and the other end of the electric push rod (402) is connected to the bottom of the accommodating seat (8) via a mounting plate (403); The extrusion rod (404) is sleeved with a first spring (405) on the outside, and the two ends of the first spring (405) are respectively connected to the corresponding positions of the plug-in component (401) and one side of the accommodating seat (8), and the top of the triangular wedge block (406) is connected to a force block (407), and the force block (407) is integrally connected to one side of the power connection interface (3).

2. A new energy tanker power battery pack according to claim 1, characterized in that: The elastic bag sleeve (7) is an elastic plastic component, the inner cavity of the elastic bag sleeve (7) is provided with a pressure relief pipe, the top of the power connection interface (3) is provided with a safety explosion-proof mechanism (9), one end of the pressure relief pipe is connected to the bottom interface of the safety explosion-proof mechanism (9), and the other end of the pressure relief pipe is connected to one side of the partition (10), and the partition (10) forms an electrolyte pressure relief pipeline with the electrolyte channel of the module battery unit through the internal flow channel, and the safety explosion-proof mechanism (9) is used to guide the pressure relief when the internal pressure of the module battery unit increases.

3. A new energy tanker power battery pack according to claim 2, characterized in that: The safety explosion-proof mechanism (9) comprises an explosion-proof seat (901), and a sealing sleeve (902) is embedded on both sides of the explosion-proof seat (901), and a force-bearing diaphragm (903) and a sealing plug (905) are respectively embedded in the sealing sleeves (902) on both sides, and the force-bearing diaphragm (903) is located at one end of the explosion-proof seat (901) close to the pressure relief pipe, and the top two sides of the force-bearing diaphragm (903) are connected to the bottom of the sealing plug (905) through guide rods (904), and the pressure-bearing diaphragm (903) is pressed and moved to push the sealing plug (905) to separate from the sealing sleeve (902) to release pressure.

4. A new energy tanker power battery pack according to claim 3, characterized in that: A second telescopic rod (906) is connected to the top of the stress-bearing diaphragm (903). The second telescopic rod (906) comprises a telescopic portion and a fixed portion connected to one side of the stress-bearing diaphragm (903), and the telescopic portion and the fixed portion are mutually nested and telescopic. The other end of the fixed portion of the second telescopic rod (906) is connected to one side of the inner cavity of the explosion-proof seat (901) through a connecting plate. A third spring (907) is sleeved on the outer wall of the telescopic portion of the second telescopic rod (906). Two ends of the third spring (907) are respectively connected to one side of the fixed portion of the second telescopic rod (906) and one side of the stress-bearing diaphragm (903). The stress-bearing diaphragm (903) is resisted by the elastic force of the third spring (907) to increase the pressure relief pressure.

5. The new energy tanker power battery pack according to claim 1, characterized in that: The clamping mechanism (6) comprises a heat sink (601), the heat sink (601) is filled with a heat dissipation medium, and a plurality of heat exchange grooves are provided on both sides of the heat sink (601), and heat exchange columns (602) are inserted and connected in the heat exchange grooves, and a heat spreader (603) is connected between the heat exchange columns (602) in the same row, and the heat spreader (603) is connected to one side of the module battery cell unit at the corresponding position, and the heat sink (601) is provided with a collapse groove (604) on both sides away from the heat exchange groove, and the collapse groove (604) is flexed to absorb the impact of the movement of the adjacent module battery cell units.

6. A new energy tanker power battery pack according to claim 1, characterized in that: The bottom of the accommodating seat (8) is connected to a guide mechanism (5), the guide mechanism (5) comprising a guide frame (501) connected to both sides of the bottom of the accommodating seat (8), both sides of the guide frame (501) are provided with travel grooves, and the inner cavity of the travel groove is fixedly connected to a first telescopic rod (502) through a plate body, one end of the telescopic portion of the first telescopic rod (502) is connected to an extrusion plate (504), the outer wall of the first telescopic rod (502) is sleeved with a second spring (503), the two ends of the second spring (503) are respectively connected to the extrusion plate (504) and corresponding positions on one side of the plate body, the inner side of the extrusion plate (504) is fitted with a shaft body (505), and a guide roller (506) is connected between the shaft bodies (505) on both sides, and a plurality of wire seats (507) are equidistantly arranged on the outer peripheral side of the guide roller (506) along the axis, and the wire harness is guided through the wire seats (507) to be introduced into the accommodating seat (8) and the elastic bag sleeve (7) and connected to the power connection interface (3).

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