New energy battery pack with protection structure

Abstract

The invention relates to the technical field of new energy, in particular to a new energy battery pack with a protection structure, which comprises a battery frame, a storage battery, a supporting plate, a limiting assembly, a driving assembly, a monitoring assembly and an eruption ejection mechanism. A plurality of battery packs are arranged in the battery frame, and each battery pack comprises a plurality of battery boxes. The storage battery is inserted into the battery box, and the supporting plate is rotationally connected with the battery box. The limiting assembly is connected with the supporting plate, so that the supporting plate is supported and limited through the matching of the limiting assembly and the battery box. The monitoring assembly is connected with the battery box and electrically connected with the controller. And the eruption ejection mechanism is connected with the battery box, triggers the driving assembly in a working state, and ejects and pushes the storage battery in an abnormal state out of the battery frame after limiting of the supporting plate is relieved. The state of the battery can be monitored in real time, the storage battery is ejected to be separated from the vehicle body when the storage battery breaks down and is about to spontaneously ignite, the vehicle body and personal safety is guaranteed, and normal running of the vehicle cannot be affected after a single battery is ejected.

Description

Technical Field

[0001] The present invention relates to the field of new energy technology, and in particular to a new energy battery pack with a protective structure. Background Art

[0002] Electric vehicles have been widely promoted as new energy vehicles. The main power of electric vehicles comes from batteries. Although the existing battery technology is very mature, there is still the phenomenon of spontaneous combustion due to failure. Once the electric vehicle battery spontaneously ignites, the vehicle will instantly explode, which is extremely dangerous. Therefore, it is necessary to invent a battery pack with a protective structure to instantly push it away from the vehicle body when one or more batteries fail, so that it burns outside the vehicle, thereby ensuring the safety of the vehicle and personnel.

[0003] The technical solution disclosed in the Chinese patent with publication number CN111634199A protects automobile batteries through mechanical monitoring and ejection, which is more effective in protecting the safety of vehicles and drivers. The invention is equipped with a detection mechanism that can detect the battery condition and an ejection mechanism that can eject the battery that has caught fire.

[0004] However, the device still has some shortcomings: the ejection structure of the device has a slow response speed, and for the battery explosion speed, this structure cannot quickly eject the battery, and the structure is easily affected by the external ambient temperature. Summary of the invention

[0005] The purpose of the present invention is to address the problems existing in the background technology and to propose a new energy battery pack with a protective structure.

[0006] The technical solution of the present invention is a new energy battery pack with a protective structure, comprising a battery frame, in which a plurality of battery packs are arranged, and each battery pack comprises a plurality of battery boxes.

[0007] The storage battery is inserted into the battery box along the bottom of the battery box, and each storage battery in the same group is connected in parallel.

[0008] The support plate is rotatably connected to the battery box so as to close the insertion port of the battery box through the support plate.

[0009] The limiting component is connected to the supporting plate so as to support and limit the supporting plate through the cooperation between the limiting component and the battery box.

[0010] A driving assembly is connected to the battery box.

[0011] A monitoring component is connected to the battery box and electrically connected to the controller, and the monitoring component monitors the state of the battery when in working state.

[0012] And an eruption ejection mechanism, which is connected to the battery box. The eruption ejection mechanism triggers the driving component in a working state to release the limit of the support plate, and ejects the abnormal battery out of the battery frame after the limit of the support plate is released.

[0013] Preferably, a plurality of conductive plates are arranged on the battery frame. Electrodes are arranged on the storage battery, and the electrodes penetrate the battery box and are electrically connected to the conductive plates on the corresponding sides.

[0014] Preferably, the battery box includes an upper limit cover, a lower limit frame and a connecting plate, the upper limit cover and the lower limit frame are integrally connected via the connecting plate, a channel for the battery to pass through is provided on the lower limit frame, and a card slot connected to the channel is provided on the lower limit frame.

[0015] Preferably, the monitoring component includes a temperature sensor, the temperature sensor is electrically connected to the controller, and the temperature sensor monitors the temperature of the battery in a working state.

[0016] Preferably, the limiting assembly includes a wedge-shaped card block and a gear A. A limiting groove is provided in the support plate, and two wedge-shaped card blocks extend outward along the two ends of the limiting groove and are inserted into the card slots on the corresponding sides, and a rack A slidably connected to the inner wall of the limiting groove is provided on the adjacent sides of the wedge-shaped card blocks on both sides. The gear A is located in the limiting groove and is rotatably connected to the support plate, and the gear A is located between the racks A on both sides and is meshed and connected to the racks A on both sides. A fixed block is provided in the limiting groove, and the fixed block is connected to one end of the spring rod, and the other end of the spring rod is connected to the wedge-shaped card block on one side.

[0017] Preferably, the driving assembly includes a worm, a sleeve and a connecting tube. The worm is located in the side wall of the lower limit frame and is rotatably connected thereto. A rotating shaft is rotatably arranged in the lower limit frame, the rotating shaft is coaxially connected to a worm wheel, the worm wheel meshes with the worm, one end of the rotating shaft is inserted into the slot, and the rotating shaft is located at one end of the slot and is integrally connected to a connecting rod, the connecting rod is rotatably connected to a push plate, the push plate is located in the slot and slides radially thereof. The worm is coaxially connected to a gear B, the lower limit frame is slidably connected to a rack B, and the rack B meshes with the gear B. The sleeve is connected to one end of the rack B extending out of the lower limit frame, the end of the rack B away from the lower limit frame is connected to a limit block, a spring A is sleeved on the outside of the rack B, and the two ends of the spring A are respectively abutted against the side close to the lower limit frame and the limit block. One end of the connecting tube is inserted into the sleeve and slidably connected to its inner wall.

[0018] Preferably, the ejection ejection mechanism comprises a sealing cover, a piston plate and a medicine storage tank. A chute connected to the interior of the upper limit cover is arranged in the sealing cover, and a through hole connected to the chute is arranged on the side wall of the sealing cover, and the nozzle of the connecting pipe is covered on the outside of the through hole and connected to the interior thereof. A plurality of fixing rods are arranged on the upper wall of the chute, and the fixing rods are slidably connected to the sleeve, and one end of the sleeve away from the upper wall of the chute is connected to the pressing plate, and the pressing plate is fitted with the surface of the battery, and the pressing plate is slidably connected to the inner wall of the chute. The piston plate is located in the chute and is slidably connected to its inner wall, and the sleeve passes through the piston plate and is slidably connected to it, and a spring B is sleeved on the sleeve, and the two ends of the spring B are respectively in contact with the piston plate and the pressing plate, and the through hole is located between the pressing plate and the piston plate. The medicine storage tank is connected to the upper limit cover, and the ejection port of the medicine storage tank is inserted into the chute and is located on the side of the piston plate away from the pressing plate, and an exciter is arranged on the medicine storage tank, and the exciter is electrically connected to the controller.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] By setting up multiple battery packs, each battery pack is connected in series to ensure that sufficient voltage is provided for the vehicle. The batteries in each battery pack are connected in parallel, so that when a battery is ejected individually, it will not affect the voltage value of the entire vehicle and will not affect the normal driving of the vehicle; by setting a limiting mechanism, the limiting mechanism is used to limit the pallet, and the pallet is used to support the battery. When the limit of the pallet is released, the battery can slide freely; by setting up an ejection mechanism, the high-pressure gas generated instantly is used to drive the drive component to run, and then the limit of the limiting component is released first, and then the faulty battery is ejected out of the battery frame using high-pressure air to make it separate from the vehicle body, thereby achieving the purpose of protecting the vehicle body and the safety of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the connection structure of various components on a single battery box in the present invention;

[0023] Figure 3 It is a structural schematic diagram of a battery box;

[0024] Figure 4 It is a schematic diagram of the connection structure between the support plate and the driving mechanism;

[0025] Figure 5 It is a schematic diagram of the connection structure of various components on the pallet;

[0026] Figure 6 Schematic diagram of the internal structure of the sealing cover.

[0027] Figure numerals: 1. battery frame; 2. controller; 3. conductive plate; 4. battery box; 41. upper limit cover; 42. lower limit frame; 421. card slot; 43. connecting plate; 5. battery; 51. electrode; 6. support plate; 7. wedge-shaped card block; 8. rack A; 9. gear A; 10. spring rod; 11. worm; 12. rotating shaft; 13. worm wheel; 14. connecting rod; 15. push plate; 16. gear B; 17. rack B; 18. spring A; 19. sleeve; 20. connecting pipe; 21. sealing cover; 211. slide groove; 212. through hole; 22. fixing rod; 23. sleeve; 24. pressure plate; 25. temperature sensor; 26. spring B; 27. piston plate; 28. medicine storage tank; 29. ​​activator. DETAILED DESCRIPTION

[0028] Embodiment 1

[0029] like Figure 1-Figure 6As shown, a new energy battery pack with a protective structure proposed by the present invention includes a battery frame 1, a storage battery 5, a support plate 6, a limit assembly, a driving assembly, a monitoring assembly and an ejection ejection mechanism. A plurality of battery packs are arranged in the battery frame 1, and each battery pack includes a plurality of battery boxes 4. The storage battery 5 is inserted into the battery box 4 along the bottom of the battery box 4, and each storage battery 5 of the same group is connected in parallel. A plurality of conductive plates 3 are arranged on the battery frame 1. An electrode 51 is arranged on the storage battery 5, and the electrode 51 penetrates the battery box 4 and is electrically connected to the conductive plate 3 on the corresponding side. The battery box 4 includes an upper limit cover 41, a lower limit frame 42 and a connecting plate 43, the upper limit cover 41 is integrally connected with the lower limit frame 42 through the connecting plate 43, a channel for the storage battery 5 to pass through is arranged on the lower limit frame 42, and a card slot 421 connected to the channel is arranged on the lower limit frame 42. The support plate 6 is rotatably connected to the battery box 4 to close the insertion port of the battery box 4 through the support plate 6. The limiting assembly is connected to the support plate 6, and the limiting assembly includes a wedge-shaped card block 7 and a gear A9. A limiting groove is set in the support plate 6, and two wedge-shaped card blocks 7 extend outward along the two ends of the limiting groove and are inserted into the card groove 421 on the corresponding side. A rack A8 slidably connected to the inner wall of the limiting groove is set on the side close to the wedge-shaped card blocks 7 on both sides. The gear A9 is located in the limiting groove and is rotatably connected to the support plate 6. The gear A9 is located between the racks A8 on both sides and is meshed and connected to the racks A8 on both sides. A fixed block is set in the limiting groove, and the fixed block is connected to one end of the spring rod 10, and the other end of the spring rod 10 is connected to the wedge-shaped card block 7 on one side. The support plate 6 is supported and limited by the cooperation of the limiting assembly and the battery box 4. The driving assembly is connected to the battery box 4. The driving assembly includes a worm 11, a sleeve 19 and a connecting pipe 20. The worm 11 is located in the side wall of the lower limit frame 42 and is rotatably connected thereto. Two rotating shafts 12 are rotatably arranged in the lower limit frame 42. The two rotating shafts 12 are parallel to each other, and the rotating shafts 12 on both sides are coaxially connected to a worm wheel 13 respectively. Both worm wheels 13 are meshed with the worm 11. One end of the rotating shaft 12 is inserted into the slot 421, and the rotating shaft 12 is located at one end of the slot 421 and is integrally connected to the connecting rod 14. The connecting rod 14 is rotatably connected to the slide seat, and the slide seat is slidably connected to the push plate 15. The push plate 15 is located in the slot 421 and slides radially thereof. The worm 11 is coaxially connected to the gear B16, and the rack B17 is slidably connected to the lower limit frame 42, and the rack B17 is meshed with the gear B16. The sleeve 19 is connected to one end of the rack B17 extending out of the lower limit frame 42, and one end of the rack B17 away from the lower limit frame 42 is connected to the limit block. The outer sleeve of the rack B17 is provided with a spring A18, and the two ends of the spring A18 are respectively abutted against the side close to the lower limit frame 42 and the limit block. One end of the connecting pipe 20 is inserted into the sleeve 19 and slidably connected to its inner wall. The monitoring component includes a temperature sensor 25, which is electrically connected to the controller 2, and the temperature sensor 25 monitors the temperature of the battery 5 in the working state. The ejection mechanism is connected to the battery box 4, and the ejection mechanism includes a sealing cover 21, a piston plate 27 and a medicine storage tank 28.A slide groove 211 communicating with the interior of the upper limit cover 41 is arranged in the sealing cover 21, and a through hole 212 communicating with the slide groove 211 is arranged on the side wall of the sealing cover 21, and the pipe mouth of the connecting pipe 20 is covered on the outside of the through hole 212 and communicated with the interior thereof. A plurality of fixing rods 22 are arranged on the upper wall of the slide groove 211, and the fixing rods 22 are slidably connected to the sleeve 23, and one end of the sleeve 23 away from the upper wall of the slide groove 211 is connected to the pressing plate 24, and the pressing plate 24 is fitted with the surface of the battery 5, and the pressing plate 24 is slidably connected to the inner wall of the slide groove 211. The piston plate 27 is located in the slide groove 211 and is slidably connected to the inner wall thereof, and the sleeve 23 penetrates the piston plate 27 and is slidably connected to the piston plate 27, and a spring B26 is sleeved on the sleeve 23, and the two ends of the spring B26 are respectively in contact with the piston plate 27 and the pressing plate 24, and the through hole 212 is located between the pressing plate 24 and the piston plate 27. The medicine storage tank 28 is connected to the upper limit cover 41, the injection port of the medicine storage tank 28 is inserted into the slide groove 211 and is located on the side of the piston plate 27 away from the pressure plate 24, and an activator 29 is provided on the medicine storage tank 28, and the activator 29 is electrically connected to the controller 2. The ejection mechanism triggers the driving component in the working state to release the limit of the support plate 6, and ejects the abnormal battery 5 out of the battery frame 1 after the limit of the support plate 6 is released.

[0030] In this embodiment, when the temperature of one of the batteries 5 rises abnormally, the temperature sensor 25 at the bottom of the pressure plate 24 senses the high temperature, and the high temperature signal is fed back to the controller 2. The controller 2 controls the igniter 29 on the battery box 4 where the battery 5 is located to operate, and the igniter 29 ignites the gas generating agent in the medicine storage tank 28, thereby generating a large amount of gas. The gas is sprayed into the sealing cover 21 through the nozzle of the medicine storage tank 28, and the piston plate 27 in the sealing cover 21 slides due to the expansion and compression of the gas. The piston plate 27 squeezes the spring B26 and moves toward the pressure plate 24. When the piston plate 27 crosses the through hole 212, part of the gas in the sealing cover 21 enters the sleeve 19 along the connecting pipe 20. At the same time, the air pressure in the sealing cover 21 continues to increase, and the gas entering the sleeve 19 pushes The sleeve 19 slides, and then drives the rack B17 to slide. The rack B17 drives the gear B16 and the worm 11 to rotate. The worm 11 drives the worm wheel 13 and the rotating shaft 12 to rotate. The rotating shaft drives the connecting rod 14 to rotate and then pushes the push plate 15 to slide. The push plate 15 pushes the wedge-shaped block 7 on the support plate 6 to retract it. At this time, the support plate 6 is in an active state and opens automatically. Due to the high air pressure in the sealing cover 21, when the support plate 6 is opened, it no longer hinders the sliding of the battery 5. At this time, the high-pressure gas quickly pushes the piston plate 27 and the pressure plate 24 to slide. The fast-sliding piston plate 27 and the pressure plate 24 are used to push the abnormal battery out of the battery box 4 and the battery frame 1. The pushed-out battery 5 is separated from the vehicle body alone, thereby avoiding its self-ignition and affecting the safety of the entire vehicle. During subsequent maintenance, a new battery can be reinstalled, and the gunpowder storage tank 28 can be refilled with gunpowder or the gunpowder storage tank 28 can be replaced.

[0031] Embodiment 2

[0032] like Figure 6 As shown, the new energy battery pack with a protective structure proposed by the present invention, compared with the first embodiment, the monitoring component also includes a voltage and current sensor, and the voltage and current sensor is electrically connected to the electrode 51 and the controller.

[0033] In this embodiment, when a new energy battery has a problem and is about to explode or self-ignite, its energy or current output will change, and the temperature will also change. In this way, the dangerous components are automatically identified and automatically ejected based on the built-in temperature and current sensing device, reducing losses and protecting life safety. The two sets of monitoring structures work together to avoid false alarms and improve the operating stability of the equipment.

[0034] Embodiment 3

[0035] Compared with the first and second embodiments, the present invention proposes a new energy battery pack with a protective structure. In the channel of the lower limit frame 42, a sealing layer is further provided to fit the inner wall thereof. The upper two surfaces of the sealing layer are respectively fitted to the bottom of the battery 5 and the surface of the support plate, and the sealing layer includes but is not limited to aluminum foil.

[0036] Adding a waterproof sealing layer in the channel of the lower limit frame 42 can effectively improve the waterproof performance of the battery box 4, thereby preventing sewage and other debris from contacting the battery 5. The sealing layer also has good thermal insulation performance, which can effectively prevent the external temperature from interfering with the battery 5. At the same time, the sealing layer made of tin foil paper is relatively brittle in itself. When the impact force generated by the high-pressure gas on the battery 5 acts on the tin foil paper, it can instantly tear it apart, thereby not hindering the ejection of the battery 5.

[0037] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A new energy battery pack with a protective structure, characterized in that: include A battery frame (1), wherein a plurality of battery groups are arranged in the battery frame (1), and each battery group includes a plurality of battery boxes (4); A storage battery (5), the storage battery (5) is inserted into the battery box (4) along the bottom of the battery box (4), and each storage battery (5) in the same group is connected in parallel; A support plate (6), the support plate (6) being rotatably connected to the battery box (4) so ​​as to close the insertion opening of the battery box (4) through the support plate (6); A limiting assembly, the limiting assembly being connected to the support plate (6) so as to support and limit the support plate (6) through the cooperation between the limiting assembly and the battery box (4); A driving assembly connected to the battery box (4); A monitoring component, the monitoring component is connected to the battery box (4) and electrically connected to the controller (2), and the monitoring component monitors the state of the storage battery (5) when in working state; and an ejection mechanism, the ejection mechanism being connected to the battery box (4), the ejection mechanism triggering the driving assembly in a working state to release the limit of the support plate (6), and ejecting the abnormally-conditioned storage battery (5) out of the battery frame (1) after the limit of the support plate (6) is released.

2. A new energy battery pack with a protective structure according to claim 1, characterized in that: A plurality of conductive plates (3) are arranged on the battery frame (1); an electrode (51) is arranged on the storage battery (5); the electrode (51) penetrates the battery box (4) and is electrically connected to the conductive plates (3) on the corresponding side.

3. The new energy battery pack with a protective structure according to claim 1, characterized in that: The battery box (4) comprises an upper limit cover (41), a lower limit frame (42) and a connecting plate (43); the upper limit cover (41) and the lower limit frame (42) are integrally connected via the connecting plate (43); a passage for the storage battery (5) to pass through is provided on the lower limit frame (42); and a card slot (421) communicating with the passage is provided on the lower limit frame (42).

4. The new energy battery pack with a protective structure according to claim 1, characterized in that: The monitoring component comprises a temperature sensor (25), the temperature sensor (25) is electrically connected to the controller (2), and the temperature sensor (25) monitors the temperature of the storage battery (5) in a working state.

5. The new energy battery pack with a protective structure according to claim 4, characterized in that: The limiting assembly comprises a wedge-shaped clamping block (7) and a gear A (9); a limiting groove is arranged in the support plate (6); two wedge-shaped clamping blocks (7) extend outwards along the two ends of the limiting groove and are inserted into the clamping grooves (421) on the corresponding sides; a rack A (8) slidably connected to the inner wall of the limiting groove is arranged on the adjacent sides of the wedge-shaped clamping blocks (7) on both sides; the gear A (9) is located in the limiting groove and is rotatably connected to the support plate (6); the gear A (9) is located between the racks A (8) on both sides and is meshed with the racks A (8) on both sides; a fixing block is arranged in the limiting groove, the fixing block is connected to one end of a spring rod (10), and the other end of the spring rod (10) is connected to the wedge-shaped clamping block (7) on one side.

6. The new energy battery pack with a protective structure according to claim 5, characterized in that: The driving assembly comprises a worm (11), a sleeve (19) and a connecting pipe (20); the worm (11) is located in the side wall of the lower limit frame (42) and is rotatably connected thereto; a rotating shaft (12) is rotatably arranged in the lower limit frame (42); the rotating shaft (12) is coaxially connected to a worm wheel (13); the worm wheel (13) is meshed with the worm (11); one end of the rotating shaft (12) is inserted into a slot (421); one end of the rotating shaft (12) located in the slot (421) is integrally connected to a connecting rod (14); the connecting rod (14) is rotatably connected to a push plate (15); the push plate (15) is located in the slot (421) and is radially The worm (11) is coaxially connected to the gear B (16), and the lower limit frame (42) is slidably connected to the rack B (17), and the rack B (17) is meshed with the gear B (16); the sleeve (19) is connected to the end of the rack B (17) extending out of the lower limit frame (42), and the end of the rack B (17) away from the lower limit frame (42) is connected to the limit block, and the outer part of the rack B (17) is sleeved with a spring A (18), and the two ends of the spring A (18) are respectively abutted against the side close to the lower limit frame (42) and the limit block; one end of the connecting pipe (20) is inserted into the sleeve (19) and slidably connected to the inner wall thereof.

7. The new energy battery pack with a protective structure according to claim 6, characterized in that: The ejection mechanism comprises a sealing cover (21), a piston plate (27) and a medicine storage tank (28); a slide groove (211) communicating with the interior of an upper limit cover (41) is arranged in the sealing cover (21), and a through hole (212) communicating with the slide groove (211) is arranged on the side wall of the sealing cover (21); the pipe mouth of the connecting pipe (20) is covered on the outside of the through hole (212) and communicated with the interior thereof; a plurality of fixing rods (22) are arranged on the upper wall of the slide groove (211); the fixing rods (22) are slidably connected to the sleeve (23); one end of the sleeve (23) away from the upper wall of the slide groove (211) is connected to a pressing plate (24); the pressing plate (24) is in contact with the surface of the storage battery (5); and the pressing plate (24) is in contact with the slide groove (211). ) is slidably connected to the inner wall of the piston plate (27); the piston plate (27) is located in the slide groove (211) and is slidably connected to the inner wall thereof, and the sleeve (23) passes through the piston plate (27) and is slidably connected thereto, a spring B (26) is sleeved on the sleeve (23), two ends of the spring B (26) are respectively in contact with the piston plate (27) and the pressure plate (24), and the through hole (212) is located between the pressure plate (24) and the piston plate (27); the medicine storage tank (28) is connected to the upper limit cover (41), the injection port of the medicine storage tank (28) is inserted into the slide groove (211) and is located on the side of the piston plate (27) away from the pressure plate (24), and an activator (29) is arranged on the medicine storage tank (28), and the activator (29) is electrically connected to the controller (2).

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