Air bag restraining tray for new energy automobile power battery

Abstract

The utility model belongs to the technical field of restraining trays, and particularly relates to an air bag restraining tray for a new energy automobile power battery. The tray comprises a tray carrier, the tray carrier comprises a supporting frame, side fixing plates, a middle fixing plate and an air bag partition plate, the supporting frame is located at the bottom of the tray carrier, the side fixing plates are fixedly installed on the two sides of the supporting frame, an upper supporting rod is installed at the top of the tray carrier, and a lower supporting rod is installed on the middle fixing plate. The two ends of the upper supporting rod are fixedly connected with the side fixing plates respectively, the middle fixing plate is installed in the tray carrier, the multiple sets of air bag partition plates are fixedly installed between the side fixing plates and the middle fixing plate, and a power battery containing groove is formed between every two adjacent air bag partition plates. And a battery cell is placed in the power battery placing groove. The air bag partition plates are arranged in the tray carrier, and the air bags are inflated to pressurize the battery cells in the grooves, so that the problem of battery expansion in a battery cell production test is solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of airbag restraint trays, and relates to an airbag restraint tray for power batteries of new energy vehicles. Background Technology

[0002] During the formation and charging processes, batteries are restrained using a fixed-space tray method. In traditional restraint tray designs, the upper plate of the tray remains stationary. The heat generated during charging and discharging causes the battery to expand, affecting the pressure exerted on it. Due to the fixed nature of the tray, this expansion cannot be effectively mitigated, potentially leading to deviations in battery pressure from design values. This uneven pressure distribution results in uneven charging and discharging, impacting battery performance and lifespan. If a battery expands arbitrarily during formation, it may push adjacent batteries out of position. When this movement accumulates to the last battery, it may deviate too far from its intended position, making it impossible to accurately locate the positive and negative terminals, potentially causing operational failure. Utility Model Content

[0003] The purpose of this utility model is to address the above-mentioned problems by providing an airbag restraint tray for power batteries in new energy vehicles.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A new energy vehicle power battery airbag restraint tray includes a tray carrier, which includes a support frame, side fixing plates, a middle fixing plate, and airbag partitions. The support frame is located at the bottom of the tray carrier, and the side fixing plates are fixedly installed on both sides of the support frame. An upper support rod is installed on the top of the tray carrier, and both ends of the upper support rod are fixedly connected to the side fixing plates. The middle fixing plate is installed inside the tray carrier. Several sets of airbag partitions are provided, and the airbag partitions are fixedly installed between the side fixing plates and the middle fixing plates. A power battery placement slot is provided between each adjacent airbag partition, and a battery cell is placed in the power battery placement slot.

[0006] In the aforementioned airbag restraint tray for power batteries of new energy vehicles, a lower limit block is fixedly installed on the support frame. Two sets of lower limit blocks are provided. The bottom of the side fixing plate is located at both ends of the lower limit block. Several sets of limit slots are provided on the lower limit block.

[0007] In the aforementioned airbag restraint tray for power batteries of new energy vehicles, an upper limit block is fixedly installed at the bottom of the upper support rod. Two sets of upper limit blocks are provided. The two ends of the upper limit blocks are respectively fixedly connected to the two side fixing plates. The upper limit blocks are provided with limit slots corresponding to the positions of the lower limit blocks.

[0008] In the aforementioned airbag restraint tray for new energy vehicle power batteries, the airbag partition is fixedly installed in the limiting slot between the lower limit block and the lower limit block.

[0009] In the aforementioned airbag restraint tray for power batteries of new energy vehicles, the airbag partition includes an airbag fixing bracket, an airbag, and a connecting frame. The airbag is located inside the airbag fixing bracket, and the connecting frame is embedded and fixedly installed on the airbag fixing bracket. The edge of the airbag is pressed and fixed to the airbag fixing bracket through the connecting frame.

[0010] In the aforementioned airbag restraint tray for new energy vehicle power batteries, threaded holes are provided on the edges of the airbag fixing bracket, airbag, and connecting frame, and the airbag fixing bracket, airbag, and connecting frame are fixedly connected through the threaded holes.

[0011] In the aforementioned airbag restraint tray for power batteries of new energy vehicles, each of the four corners of the airbag fixing bracket is fixedly provided with a connecting part, and the airbag fixing bracket is fixedly installed in the limiting slots of the lower limit block and the upper limit block through the connecting parts.

[0012] In the aforementioned airbag restraint tray for power batteries of new energy vehicles, a pressure relief mounting component is installed above the airbag partition. Both ends of the pressure relief mounting component are fixedly connected to the side fixing plate, and a pressure relief valve is fixedly installed on the pressure relief mounting component. An air pipe is provided inside the pressure relief mounting component, and the air pipe is connected to the pressure relief valve and each airbag respectively.

[0013] In the aforementioned airbag restraint tray for power batteries of new energy vehicles, an air inlet pipe is connected to the airbag, and a protective shell is provided on the outside of the air inlet pipe. The protective shell is fixedly installed on one side of the pressure relief mounting component, and the pressure relief valve is located below the protective shell.

[0014] In the aforementioned airbag restraint tray for power batteries of new energy vehicles, the bottom and top of the intermediate fixing plate are fixedly installed in the lower limit block and the limiting slot of the lower limit block, and a support block is installed between the intermediate fixing plate and the side fixing plate.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] 1. This utility model pressurizes the battery cells in the power battery placement slot by introducing gas into the airbag partition. When the battery cells expand and the pressure in the air passage rises, the pressure relief valve overflows to the outside, thereby keeping the battery cell restraint pressure constant and solving the problem of battery expansion during battery cell production and testing.

[0017] 2. This utility model sets a lower limit block and an upper limit block inside the tray carrier, and the airbag partition is installed in the limiting slots of the lower limit block and the upper limit block. This can position and fix the airbag partition, so that the airbag partition can be quickly disassembled and installed, and the strength of the airbag partition can also be improved.

[0018] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a partial structural schematic diagram of the present invention.

[0021] Figure 3 This is a schematic diagram of the bottom structure of this utility model.

[0022] Figure 4 This is a top view of the structure of this utility model.

[0023] Figure 5 This is a side view of the structure of this utility model.

[0024] Figure 6 This is a utility model Figure 5 Sectional view at point AA.

[0025] Figure 7 This is a utility model Figure 2 Enlarged view of point C in the middle.

[0026] Figure 8 This is a utility model Figure 6 Enlarged view of section B in the middle.

[0027] In the diagram: 1. Tray carrier; 2. Support frame; 3. Middle fixing plate; 4. Side fixing plate; 5. Airbag partition; 6. Upper support rod; 7. Power battery placement slot; 8. Battery cell; 9. Lower limit block; 10. Limiting slot; 11. Upper limit block; 12. Airbag fixing bracket; 13. Airbag; 14. Connecting frame; 15. Threaded hole; 16. Connecting part; 17. Pressure relief mounting part; 18. Pressure relief valve; 19. Intake pipe; 20. Protective shell; 21. Support block. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] like Figure 1-8As shown, an airbag restraint tray for a new energy vehicle power battery includes a tray carrier 1. The tray carrier 1 includes a support frame 2, side fixing plates 4, a middle fixing plate 3, and airbag partitions 5. The support frame 2 is located at the bottom of the tray carrier 1. The side fixing plates 4 are fixedly installed on both sides of the support frame 2. An upper support rod 6 is installed on the top of the tray carrier 1. The two ends of the upper support rod 6 are respectively fixedly connected to the side fixing plates 4. The middle fixing plate 3 is installed inside the tray carrier 1. Several sets of airbag partitions 5 are provided. The airbag partitions 5 are fixedly installed between the side fixing plates 4 and the middle fixing plates 3. A power battery placement slot 7 is provided between each adjacent airbag partition 5. A battery cell 8 is placed in the power battery placement slot 7.

[0030] In this embodiment, the battery cell 8 is placed in the power battery placement slot 7, and the air inlet pipe 19 on the airbag partition 5 is connected to the air pump. After gas is introduced into the airbag partition 5, the airbag 13 begins to pressurize the battery cell 8 in the power battery placement slot 7.

[0031] Furthermore, a lower limit block 9 is fixedly installed on the support frame 2. Two sets of lower limit blocks 9 are provided. The bottom of the side fixing plate 4 is located at both ends of the lower limit block 9. Several sets of limit slots 10 are provided on the lower limit block 9.

[0032] In this embodiment, the lower limit block 9 is used to limit and fix the bottom of the side fixing plate 4 and the airbag partition 5.

[0033] Furthermore, an upper limit block 11 is fixedly installed at the bottom of the upper support rod 6. Two sets of upper limit blocks 11 are provided. The two ends of the upper limit blocks 11 are fixedly connected to the two side fixing plates 4 respectively. The upper limit blocks 11 are provided with a limiting slot 10 corresponding to the position of the lower limit block 9.

[0034] In this embodiment, the upper limit block 11 is used to limit and fix the top of the side fixing plate 4 and the airbag partition 5.

[0035] Furthermore, the airbag partition 5 is fixedly installed in the limiting slot 10 between the lower limiting block 9 and the lower limiting block 9.

[0036] In this embodiment, the airbag partition 5 can be positioned and fixed, thereby improving the strength of the airbag partition 5.

[0037] Furthermore, the airbag partition 5 includes an airbag fixing bracket 12, an airbag 13, and a connecting frame 14. The airbag 13 is located inside the airbag fixing bracket 12, and the connecting frame 14 is embedded and fixedly installed on the airbag fixing bracket 12. The edge of the airbag 13 is pressed and fixed on the airbag fixing bracket 12 through the connecting frame 14.

[0038] In this embodiment, the edge of the airbag 13 is fixed between the airbag fixing bracket 12 and the airbag 13. The airbag fixing bracket 12 and the airbag 13 can protect and support the airbag 13 when it is inflated.

[0039] Furthermore, threaded holes 15 are provided on the edges of the airbag fixing bracket 12, airbag 13 and connecting frame 14, and the airbag fixing bracket 12, airbag 13 and connecting frame 14 are fixedly connected through the threaded holes 15.

[0040] In this embodiment, the airbag 13 can be prevented from moving when it is inflated, thereby improving the strength of the airbag partition 5.

[0041] Furthermore, each of the four corners of the airbag fixing bracket 12 is fixedly provided with a connecting part 16, and the airbag fixing bracket 12 is fixedly installed in the limiting slot 10 of the lower limiting block 9 and the upper limiting block 11 through the connecting part 16.

[0042] In this embodiment, the airbag partition 5 can be quickly disassembled and installed, and the movement of the airbag partition 5 can also be restricted.

[0043] Furthermore, a pressure relief mounting component 17 is installed above the airbag partition 5. Both ends of the pressure relief mounting component 17 are fixedly connected to the side fixing plate 4. A pressure relief valve 18 is fixedly installed on the pressure relief mounting component 17. An air pipe is provided inside the pressure relief mounting component 17, and the air pipe is connected to the pressure relief valve 18 and each airbag 13 respectively.

[0044] In this embodiment, when the expansion of the battery cell 8 causes the pressure inside the air circuit to rise, a portion of the pressure set by the pressure relief valve 18 is released to the outside, thereby keeping the restraint pressure of the battery cell 8 constant.

[0045] Furthermore, an air inlet pipe 19 is connected to the airbag 13, and a protective shell 20 is provided on the outside of the air inlet pipe 19. The protective shell 20 is fixedly installed on one side of the pressure relief mounting component 17, and the pressure relief valve 18 is located below the protective shell 20.

[0046] In this embodiment, the protective shell 20 can protect the air intake pipe 19 and the pressure relief valve 18.

[0047] Furthermore, the bottom and top of the intermediate fixing plate 3 are fixedly installed in the lower limit block 9 and the limiting slot 10 of the lower limit block 9, and a support block 21 is installed between the intermediate fixing plate 3 and the side fixing plate 4.

[0048] In this embodiment, the support block 21 can support the intermediate fixing plate 3, thereby improving the strength of the pallet carrier 1.

[0049] The working principle of this utility model is as follows:

[0050] When using this invention, the battery cell 8 is placed in the power battery placement slot 7. The air inlet pipe 19 on the airbag partition 5 is connected to the air pump. After gas is introduced into the airbag partition 5, the airbag 13 begins to pressurize the battery cell 8 in the power battery placement slot 7. When the battery cell 8 expands and causes the pressure in the air circuit to rise, the pressure relief valve 18 overflows to the outside at the set pressure, thereby keeping the restraint pressure of the battery cell 8 constant and solving the problem of battery expansion during battery cell production testing.

[0051] By setting a lower limit block 9 and an upper limit block 11 inside the tray carrier 1, the airbag partition 5 is installed in the limiting slot 10 of the lower limit block 9 and the upper limit block 11, which can position and fix the airbag partition 5, thereby improving the strength of the airbag partition 5.

[0052] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0053] Although this document frequently uses terms such as 1. tray carrier; 2. support frame; 3. intermediate fixing plate; 4. side fixing plate; 5. airbag partition; 6. upper support rod; 7. power battery placement slot; 8. battery cell; 9. lower limit block; 10. limit slot; 11. upper limit block; 12. airbag fixing bracket; 13. airbag; 14. connecting frame; 15. threaded hole; 16. connecting part; 17. pressure relief mounting part; 18. pressure relief valve; 19. air intake pipe; 20. protective shell; 21. support block, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A restraint tray for an airbag in a power battery for a new energy vehicle, comprising a tray carrier (1), characterized in that, The pallet carrier (1) includes a support frame (2), a side fixing plate (4), a middle fixing plate (3), and an airbag partition (5). The support frame (2) is located at the bottom of the pallet carrier (1). The side fixing plate (4) is fixedly installed on both sides of the support frame (2). An upper support rod (6) is installed on the top of the pallet carrier (1). The two ends of the upper support rod (6) are fixedly connected to the side fixing plate (4) respectively. The middle fixing plate (3) is installed inside the pallet carrier (1). Several sets of airbag partitions (5) are provided. The airbag partitions (5) are fixedly installed between the side fixing plate (4) and the middle fixing plate (3). A power battery placement slot (7) is provided between each adjacent airbag partition (5). A battery cell (8) is placed in the power battery placement slot (7).

2. The airbag restraint tray for power batteries of new energy vehicles according to claim 1, characterized in that, The support frame (2) is fixedly installed with a lower limit block (9). There are two sets of the lower limit block (9). The bottom of the side fixing plate (4) is located at both ends of the lower limit block (9). The lower limit block (9) is provided with several sets of limit slots (10).

3. The airbag restraint tray for power batteries of new energy vehicles according to claim 2, characterized in that, The upper support rod (6) is fixedly installed with an upper limit block (11) at its bottom. There are two sets of upper limit blocks (11). The two ends of the upper limit blocks (11) are fixedly connected to the two side fixing plates (4) respectively. The upper limit blocks (11) are provided with a limiting slot (10) corresponding to the position of the lower limit block (9).

4. The airbag restraint tray for power batteries of new energy vehicles according to claim 3, characterized in that, The airbag partition (5) is fixedly installed in the limiting slot (10) between the lower limit block (9) and the lower limit block (9).

5. The airbag restraint tray for power batteries of new energy vehicles according to claim 4, characterized in that, The airbag partition (5) includes an airbag fixing bracket (12), an airbag (13) and a connecting frame (14). The airbag (13) is located inside the airbag fixing bracket (12). The connecting frame (14) is embedded and fixedly installed on the airbag fixing bracket (12). The edge of the airbag (13) is pressed and fixed on the airbag fixing bracket (12) through the connecting frame (14).

6. The airbag restraint tray for power batteries of new energy vehicles according to claim 5, characterized in that, The edges of the airbag fixing bracket (12), airbag (13) and connecting frame (14) are all provided with threaded holes (15), and the airbag fixing bracket (12), airbag (13) and connecting frame (14) are fixedly connected through the threaded holes (15).

7. The airbag restraint tray for power batteries of new energy vehicles according to claim 6, characterized in that, The airbag fixing bracket (12) is fixedly provided with connecting parts (16) at all four corners. The airbag fixing bracket (12) is fixedly installed in the limiting slots (10) of the lower limiting block (9) and the upper limiting block (11) through the connecting parts (16).

8. The airbag restraint tray for power batteries of new energy vehicles according to claim 7, characterized in that, A pressure relief mounting component (17) is installed above the airbag partition (5). Both ends of the pressure relief mounting component (17) are fixedly connected to the side fixing plate (4). A pressure relief valve (18) is fixedly installed on the pressure relief mounting component (17). An air pipe is provided inside the pressure relief mounting component (17), and the air pipe is connected to the pressure relief valve (18) and each airbag (13).

9. The airbag restraint tray for power batteries of new energy vehicles according to claim 8, characterized in that, An air inlet pipe (19) is connected to the air bag (13). A protective shell (20) is provided on the outside of the air inlet pipe (19). The protective shell (20) is fixedly installed on one side of the pressure relief installation component (17). The pressure relief valve (18) is located below the protective shell (20).

10. The airbag restraint tray for a new energy vehicle power battery according to claim 9, characterized in that, The bottom and top of the intermediate fixing plate (3) are fixedly installed in the lower limit block (9) and the limiting slot (10) of the lower limit block (9), and a support block (21) is installed between the intermediate fixing plate (3) and the side fixing plate (4).

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