A structure of a new energy vehicle battery pack for long-term use

The battery pack structure addresses secondary damage risks by using deformable support teeth and a toggle ring mechanism to safely disconnect power upon collision, preventing circuit fires and ensuring safe operation.

CN118448801BActive Publication Date: 2025-01-03NEW AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202410741731.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-11
Publication Date
2025-01-03
Estimated Expiration
2044-06-11

AI Technical Summary

Technical Problem

Existing battery packs in electric vehicles face the risk of secondary damage during accidents due to increased storage capacity, which can lead to circuit fires and further injuries.

Method used

A battery pack structure with deformable support teeth, a rotating pressing block, a toggle ring mechanism, and a pulling structure to disconnect the power supply circuit upon collision, using porcelain or bendable monomers and a worm gear system to ensure safe power cutoff.

Benefits of technology

The structure effectively prevents secondary damage by disconnecting the power supply during collisions, ensuring safe operation and reducing the risk of circuit fires.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a structure of a battery pack for a new energy vehicle under long-term use, including a shell, a battery compartment is provided inside the shell, a battery pack is placed in the battery compartment, a receiving seat is provided in the battery compartment, the battery pack is placed in the receiving seat, supporting teeth are provided between the receiving seat and the inner wall of the shell, the supporting teeth are distributed around the receiving seat, when the receiving seat collides, the supporting teeth can be deformed or broken, so that the receiving seat drives the battery pack to move. When the device is used, in order to meet the long-term use of the electric vehicle, the storage capacity of the battery pack increases, in order to avoid the probability of secondary damage caused by the increase in storage capacity when an accident occurs, by providing supporting teeth, the supporting teeth can be deformed or broken when the electric vehicle collides, and then the power supply circuit of the battery pack is cut off to avoid the occurrence of secondary damage.
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Description

Technical Field

[0001] The present invention belongs to the technical field of battery pack installation structures, and in particular relates to a structure of a battery pack for a new energy vehicle used for a long time. Background Art

[0002] In the logistics industry, electric vehicles are a common delivery tool that has won the favor of many deliverymen for its convenience and flexibility. In order to ensure the efficiency of delivery (i.e., long-term use), the existing technology adopts measures such as increasing the battery storage capacity and making the battery replaceable.

[0003] When the battery capacity increases, once an accident occurs, secondary damage is very likely to occur when the battery capacity is large. In order to avoid this situation, the present application proposes a structure of a new energy vehicle battery pack for long-term use. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a structure of a new energy vehicle battery pack for long-term use, which effectively solves the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a structure of a new energy vehicle battery pack for long-term use, comprising a shell, a battery compartment is provided inside the shell, a battery pack is placed in the battery compartment, a receiving seat is provided in the battery compartment, the battery pack is placed in the receiving seat, supporting teeth are provided between the receiving seat and the inner wall of the shell, the supporting teeth are distributed around the receiving seat, when the receiving seat is hit, the supporting teeth can be deformed or broken, so that the receiving seat drives the battery pack to move,

[0006] A pressing block is also arranged on the inner wall of the shell, the pressing block extends into the battery compartment and can rotate, and a rotating block is also arranged in the inner wall of the shell, the rotating block is located above the pressing block, and when the pressing block rotates, the rotating block can rotate and extend into the battery compartment, and the rotating block extends above the battery pack.

[0007] A plug is connected to the battery pack through an electric wire, a socket is arranged on the inner wall of the shell, a first conductive seat is arranged in the socket, a second conductive seat is arranged on one side of the first conductive seat, the second conductive seat is electrically connected to the circuit of the electric vehicle, the first conductive seat is fixed in the socket, the second conductive seat can be electrically connected to the first conductive seat, and when the plug is inserted into the socket, the plug is electrically connected to the first conductive seat.

[0008] A pulling structure is arranged on the rotating block, and a toggle block is arranged in the battery pack. The toggle block can move upward, and when the receiving seat drives the battery pack to move, the toggle block can cooperate with the pulling structure to separate the first conductive seat from the second conductive seat.

[0009] Preferably, the supporting tooth is made of a porcelain material or comprises two bendable monomers, the two monomers are offset against each other, and the contact surfaces of the two monomers are arc surfaces.

[0010] Preferably, a worm is fixedly connected to one end of the pressing block, a rotating shaft is fixedly connected to one end of the rotating block, the lower end of the rotating shaft extends downward and is fixedly connected to a worm wheel, the worm and the worm wheel cooperate, and when the battery pack is placed in the battery compartment, the battery pack can press one end of the pressing block downward to cause the rotating block to rotate.

[0011] Preferably, a slot is provided on the first conductive seat, and a plug-in block is fixedly connected to the second conductive seat, and the plug-in block can be inserted into the slot to connect the first conductive seat with the second conductive seat.

[0012] Preferably, a toggle ring is installed on the inner wall of the socket, and a wedge is fixed inside the toggle ring. The wedge has a curved structure, one end of the wedge is connected to the inner wall of the toggle ring, and the other end of the wedge extends into the toggle ring. The thickness of the wedge gradually increases from one end of the wedge to the other end of the wedge. When the toggle ring rotates, the wedge can abut against the free end of the plug-in block and push the second conductive seat away from the first conductive seat.

[0013] Preferably, the pulling structure includes a connecting rope, which passes through a rotating block. A gear is provided in the socket, and a pulling rope is wound around the outside of the gear. The connecting rope is fixedly connected to the pulling rope, and when the rotating block is rotated to the top of the battery pack, the connecting rope is in a taut state. The toggle block cooperates with the connecting rope so that when the battery pack moves, the toggle block can pull the connecting rope and toggle the gear. A rack is provided outside the toggle ring, and the gear cooperates with the rack.

[0014] Preferably, the connecting rope has an X segment and a Y segment below the rotating block, the X segment is in the same left-right direction as the battery pack, and the Y segment is in the same front-back direction as the battery pack. A first card holder and a second card holder are provided at the upper end of the toggle block, the X segment is embedded in the second card holder, and the Y segment is embedded in the first card holder.

[0015] Preferably, a guide block is fixedly connected to the lower end of the rotating block, and the connecting rope passes around the guide block to have an X section and a Y section.

[0016] Preferably, a plug-in rod is fixedly connected to the lower end of the toggle block, a base rod is provided in the inner wall of the battery pack, the lower end of the base rod extends to the lower end of the battery pack, the plug-in rod is inserted into the base rod, and a spring is provided between the plug-in rod and the base rod, the plug-in rod has a thick portion on the outside, and there is friction between the thick portion and the battery pack, when the base rod pushes the plug-in rod upward, the thick portion overcomes the friction and is able to move upward, and extends upward under the action of the spring.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1) When the device is used, in order to meet the long-term use of the electric vehicle, the storage capacity of the battery pack increases. In order to avoid the probability of secondary injury caused by the increase in storage capacity when an accident occurs, by providing support teeth, the support teeth can be deformed or broken when the electric vehicle collides, thereby cutting off the power supply circuit of the battery pack to avoid the occurrence of secondary injury;

[0019] 2) By providing a toggle ring, when the toggle ring rotates, the wedge inside it can push the plug-in block, and then push the second conductive seat, and when the toggle ring rotates a certain angle (when a collision occurs), the second conductive seat is separated from the first conductive seat, and the battery pack will no longer supply power to the electric vehicle, thereby avoiding secondary damage to the electric vehicle caused by circuit fire;

[0020] 3) When the device is in use, a base rod is provided to enable the toggle block to cooperate with the connecting rope. When the battery pack is placed in the battery compartment, the base rod is pushed upward. At this time, the base rod pushes the plug rod upward together until the thick part outside the plug rod is no longer in contact with the battery pack. At this time, the spring (in a compressed state) can release energy to push the plug rod upward and enable the toggle block to cooperate with the connecting rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the overall top view structure of the present invention;

[0023] Figure 2 is a schematic diagram of a top view of the inner wall section of the housing of the present invention;

[0024] Figure 3 It is an enlarged structural schematic diagram of the toggle ring of the present invention;

[0025] Figure 4 It is a structural schematic diagram of one side of the combination of the toggle ring and the second conductive seat of the present invention;

[0026] Figure 5 It is a schematic structural diagram of one side of the second conductive seat of the present invention;

[0027] Figure 6 It is a schematic diagram of the enlarged structure of one side of the wedge block of the present invention;

[0028] Figure 7 It is a schematic diagram of the matching structure of the X end, the Y segment and the toggle block of the present invention;

[0029] Figure 8 It is a schematic structural diagram of one side of the shell section of the present invention;

[0030] Fig. 9 It is a schematic diagram of the matching structure of the toggle block and the pressing block of the present invention;

[0031] Fig.10 It is a structural schematic diagram of one embodiment of the supporting tooth of the present invention;

[0032] Fig.11 It is a schematic diagram of the matching structure of the plug-in rod and the base rod of the present invention.

[0033] In the figure: 1. shell; 2. battery pack; 3. plug; 4. rotating block; 5. rotating shaft; 6. connecting rope; 7. toggle block; 8. socket; 9. first conductive seat; 10. toggle ring; 11. gear; 12. pull rope; 13. second conductive seat; 14. plug-in block; 15. wedge block; 16. rack; 17. first card seat; 18. second card seat; 19. pressure block; 20. receiving seat; 21. flange; 22. supporting teeth; 23. worm gear; 24. worm; 25. plug-in rod; 26. base rod; 27. spring. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] Depend on Figure 1-11 The present invention discloses a structure of a new energy vehicle battery pack for long-term use, comprising a shell 1, wherein a battery compartment is provided inside the shell 1, a battery pack 2 is placed in the battery compartment, a receiving seat 20 is provided in the battery compartment, the battery pack 2 is placed in the receiving seat 20, supporting teeth 22 are provided between the receiving seat 20 and the inner wall of the shell 1, the supporting teeth 22 are distributed around the receiving seat 20, when the receiving seat 20 is hit, the supporting teeth 22 can be deformed or broken, so that the receiving seat 20 drives the battery pack 2 to move,

[0036] When the device is used, in order to meet the long-term use of the electric vehicle, the storage capacity of the battery pack increases. In order to avoid the probability of secondary injury caused by the increase in storage capacity when an accident occurs, by providing the support teeth 22, the support teeth 22 can be deformed or broken when the electric vehicle collides, thereby cutting off the power supply circuit of the battery pack 2 to avoid the occurrence of secondary injury.

[0037] A pressing block 19 is also provided on the inner wall of the housing 1. The pressing block 19 extends into the battery compartment and can rotate. A rotating block 4 is also provided in the inner wall of the housing 1. The rotating block 4 is located above the pressing block 19. When the pressing block 19 rotates, the rotating block 4 can rotate and extend into the battery compartment, and the rotating block 4 extends above the battery pack 2.

[0038] A plug 3 is connected to the battery pack 2 through an electric wire, a socket 8 is provided on the inner wall of the housing 1, a first conductive seat 9 is provided in the socket 8, a second conductive seat 13 is provided on one side of the first conductive seat 9, the second conductive seat 13 is electrically connected to the circuit of the electric vehicle, the first conductive seat 9 is fixed in the socket 8, the second conductive seat 13 can be electrically connected to the first conductive seat 9, and when the plug 3 is inserted into the socket 8, the plug 3 is electrically connected to the first conductive seat 9.

[0039] The plug 3 drains the current in the battery pack 2. When it is inserted into the socket 8, the plug 3, the first conductive seat 9, and the second conductive seat 13 form a power supply circuit to power the electric vehicle. In the initial state, the first conductive seat 9 is electrically connected to the second conductive seat 13. After the user puts the battery pack 2 into the battery compartment, the plug 3 is tightly inserted into the socket 8 to power the electric vehicle.

[0040] A pulling structure is provided on the rotating block 4, and a toggle block 7 is provided in the battery pack 2. The toggle block 7 can move upward, and when the receiving seat 20 drives the battery pack 2 to move, the toggle block 7 can cooperate with the pulling structure to separate the first conductive seat 9 from the second conductive seat 13, thereby achieving the purpose of power off.

[0041] In some embodiments, the supporting teeth 22 are made of porcelain material, or other materials, as long as they can be broken after the electric vehicle collides.

[0042] In other embodiments, the supporting tooth 22 includes two bendable monomers that abut against each other, and the contact surface of the two monomers is an arc surface. After the electric vehicle collides, the supporting tooth 22 can bend, thereby allowing the receiving seat 20 to move.

[0043] When the battery pack 2 is placed into the battery compartment, the battery pack 2 can move the pressing block 19. In order to facilitate the control of the rotating block 4, the following technical scheme is provided: a worm 24 is fixedly connected to one end of the pressing block 19, and a rotating shaft 5 is fixedly connected to one end of the rotating block 4. The lower end of the rotating shaft 5 extends downward and is fixedly connected to a worm gear 23. The worm 24 cooperates with the worm gear 23. When the battery pack 2 is placed into the battery compartment, the battery pack 2 can press one end of the pressing block 19 downward to rotate the rotating block 4.

[0044] In some embodiments, a slot is provided on the first conductive seat 9, and a plug-in block 14 is fixedly connected to the second conductive seat 13. The plug-in block 14 can be inserted into the slot to connect the first conductive seat 9 with the second conductive seat 13. The plug-in block 14 can be made of a conductive material, and a conductive material is also provided in the slot. When the plug-in block 14 is inserted into the slot, the first conductive seat 9 is electrically connected to the second conductive seat 13.

[0045] A toggle ring 10 is installed on the inner wall of the socket 8, and a wedge 15 is fixedly connected inside the toggle ring 10. The wedge 15 has a curved structure, one end of the wedge 15 is connected to the inner wall of the toggle ring 10, and the other end of the wedge 15 extends into the toggle ring 10, and the thickness of the wedge 15 gradually increases from one end of the wedge 15 to the other end of the wedge 15. When the toggle ring 10 rotates, the wedge 15 can abut against the free end of the plug-in block 14 and push the second conductive seat 13 away from the first conductive seat 9.

[0046] When the toggle ring 10 rotates, the wedge block 15 therein can push the plug-in block 14, and then push the second conductive seat 13, and when the toggle ring 10 rotates a certain angle (when a collision occurs), the second conductive seat 13 is separated from the first conductive seat 9. At this time, the battery pack 2 will no longer supply power to the electric vehicle, thereby avoiding secondary damage to the electric vehicle caused by circuit fire.

[0047] The pulling structure includes a connecting rope 6, which passes through the rotating block 4. A gear 11 is provided in the socket 8, and a pulling rope 12 is wound around the gear 11. The connecting rope 6 is fixedly connected to the pulling rope 12, and when the rotating block 4 rotates to the top of the battery pack 2, the connecting rope 6 is in a taut state. The toggle block 7 cooperates with the connecting rope 6 so that when the battery pack 2 moves, the toggle block 7 can pull the connecting rope 6 and toggle the gear 11. A rack 16 is provided outside the toggle ring 10, and the gear 11 cooperates with the rack 16, so that when the connecting rope 6 is pulled, the toggle ring 10 can rotate, and the connecting rope 6 can be a steel wire rope.

[0048] In actual application, collisions may come from various directions. In order to respond to collisions in various directions, the following technical solution is provided. The connecting rope 6 has an X segment and a Y segment below the rotating block 4. The X segment is in the same direction as the left and right direction of the battery pack 2, and the Y segment is in the same direction as the front and back direction of the battery pack 2. A first card seat 17 and a second card seat 18 are provided at the upper end of the toggle block 7. The X segment is embedded in the second card seat 18, and the Y segment is embedded in the first card seat 17. That is, no matter which direction the collision comes from, the connecting rope 6 can be pulled.

[0049] The lower end of the rotating block 4 is fixedly connected to a guide block, and the connecting rope 6 passes around the guide block to have an X section and a Y section.

[0050] The lower end of the toggle block 7 is fixedly connected to a plug rod 25, and a base rod 26 is provided in the inner wall of the battery pack 2. The lower end of the base rod 26 extends to the lower end of the battery pack 2, and the plug rod 25 is inserted into the base rod 26. A spring 27 is provided between the plug rod 25 and the base rod 26. The plug rod 25 has a thick portion on the outside, and there is friction between the thick portion and the battery pack 2. When the base rod 26 pushes the plug rod 25 upward, the thick portion overcomes the friction and is able to move upward, and extends upward under the action of the spring 27.

[0051] When the device is in use, in order to enable the toggle block 7 to cooperate with the connecting rope 6, a base rod 26 is provided. When the battery pack 2 is placed in the battery compartment, the base rod 26 is pushed upward. At this time, the base rod 26 pushes the plug-in rod 25 upward together until the thick part outside the plug-in rod 25 is out of contact with the battery pack 2. At this time, the spring 27 (in a compressed state) can release energy to push the plug-in rod 25 upward and enable the toggle block 7 to cooperate with the connecting rope 6.

[0052] The flange 21 is inserted into the inner wall of the battery compartment to prevent the receiving seat 20 from shaking up and down, and there is a certain gap between the flange 21 and the inner wall of the battery compartment, so that the receiving seat 20 can move.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] 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 structure of a new energy vehicle battery pack for long-term use, comprising a housing (1), characterized in that: A battery compartment is provided inside the housing (1), and the battery pack (2) is placed in the battery compartment. A receiving seat (20) is provided in the battery compartment, and the battery pack (2) is placed in the receiving seat (20). Support teeth (22) are provided between the receiving seat (20) and the inner wall of the housing (1), and the support teeth (22) are distributed around the receiving seat (20). When the receiving seat (20) is impacted, the support teeth (22) can be deformed or broken, so that the receiving seat (20) drives the battery pack (2) to move. A pressing block (19) is also provided on the inner wall of the housing (1), the pressing block (19) extends into the battery compartment, and the pressing block (19) is rotatable. A rotating block (4) is also provided in the inner wall of the housing (1), the rotating block (4) is located above the pressing block (19), and when the pressing block (19) rotates, the rotating block (4) is rotatable and extends into the battery compartment, and the rotating block (4) extends above the battery pack (2). A plug (3) is connected to the battery pack (2) via an electric wire, a socket (8) is provided on the inner wall of the housing (1), a first conductive seat (9) is provided in the socket (8), a second conductive seat (13) is provided on one side of the first conductive seat (9), the second conductive seat (13) is electrically connected to the circuit of the electric vehicle, the first conductive seat (9) is fixedly connected to the socket (8), the second conductive seat (13) can be electrically connected to the first conductive seat (9), and when the plug (3) is inserted into the socket (8), the plug (3) is electrically connected to the first conductive seat (9), A pulling structure is provided on the rotating block (4), and a toggle block (7) is provided in the battery pack (2). The toggle block (7) can move upwards, and when the receiving seat (20) drives the battery pack (2) to move, the toggle block (7) can cooperate with the pulling structure to separate the first conductive seat (9) from the second conductive seat (13). The first conductive seat (9) is provided with a slot, and the second conductive seat (13) is fixedly connected with a plug-in block (14), and the plug-in block (14) can be inserted into the slot so that the first conductive seat (9) is connected to the second conductive seat (13). A toggle ring (10) is mounted on the inner wall of the socket (8), and a wedge (15) is fixedly connected inside the toggle ring (10). The wedge (15) is a curved structure, one end of the wedge (15) is connected to the inner wall of the toggle ring (10), and the other end of the wedge (15) extends into the toggle ring (10). The thickness of the wedge (15) gradually increases from one end of the wedge (15) to the other end of the wedge (15). When the toggle ring (10) rotates, the wedge (15) can abut against the free end of the plug-in block (14) and push the second conductive seat (13) away from the first conductive seat (9).

2. The structure of a new energy vehicle battery pack for long-term use according to claim 1, characterized in that: The supporting tooth (22) is made of a porcelain material or comprises two bendable monomers, the two monomers are opposed to each other, and the contact surfaces of the two monomers are arc surfaces.

3. The structure of a new energy vehicle battery pack for long-term use according to claim 1, characterized in that: A worm (24) is fixedly connected to one end of the pressing block (19), a rotating shaft (5) is fixedly connected to one end of the rotating block (4), the lower end of the rotating shaft (5) extends downward and is fixedly connected to a worm wheel (23), the worm (24) cooperates with the worm wheel (23), and when the battery pack (2) is placed in the battery compartment, the battery pack (2) can press one end of the pressing block (19) downward to rotate the rotating block (4).

4. The structure of a new energy vehicle battery pack for long-term use according to claim 1, characterized in that: The pulling structure comprises a connecting rope (6), the connecting rope (6) passing through the rotating block (4), a gear (11) being arranged in the socket (8), a pulling rope (12) being wound around the gear (11), the connecting rope (6) being fixedly connected to the pulling rope (12), and when the rotating block (4) is rotated to the top of the battery pack (2), the connecting rope (6) is in a taut state, the toggle block (7) cooperates with the connecting rope (6), so that when the battery pack (2) moves, the toggle block (7) can pull the connecting rope (6) and toggle the gear (11), a rack (16) is arranged outside the toggle ring (10), and the gear (11) cooperates with the rack (16).

5. The structure of a new energy vehicle battery pack for long-term use according to claim 4, characterized in that: The connecting rope (6) has an X section and a Y section below the rotating block (4), the X section is in the same left-right direction as the battery pack (2), and the Y section is in the same front-back direction as the battery pack (2). A first clamping seat (17) and a second clamping seat (18) are provided at the upper end of the toggle block (7), the X section is embedded in the second clamping seat (18), and the Y section is embedded in the first clamping seat (17).

6. The structure of a new energy vehicle battery pack for long-term use according to claim 5, It is characterized in that The lower end of the rotating block (4) is fixedly connected to a guide block, and the connecting rope (6) passes around the guide block and has an X section and a Y section.

7. The structure of a new energy vehicle battery pack for long-term use according to claim 6, characterized in that: The lower end of the toggle block (7) is fixedly connected to a plug rod (25); a base rod (26) is provided in the inner wall of the battery pack (2); the lower end of the base rod (26) extends to the lower end of the battery pack (2); the plug rod (25) is inserted into the base rod (26); a spring (27) is provided between the plug rod (25) and the base rod (26); the plug rod (25) has a thick portion on the outside; there is friction between the thick portion and the battery pack (2); when the base rod (26) pushes the plug rod (25) upward, the thick portion overcomes the friction and is able to move upward, and extends upward under the action of the spring (27).