New energy battery box pass-type airtightness detection equipment

Abstract

The invention relates to the technical field of airtightness detection equipment, in particular to new energy battery box pass-type airtightness detection equipment, a second telescopic cylinder for pushing a battery box to move is connected to a bottom plate, limiting mechanisms for limiting the battery box are connected to the two sides of the interior of a rack, a gas circuit detection mechanism is connected to one side of the rack, and the gas circuit detection mechanism is connected to the other side of the rack. And the upper end of the interior of the rack is connected with a pressing and plugging mechanism for sealing the battery box. A new energy battery box is placed on the feeding mechanism to be conveyed, the conveyed new energy battery box falls on the bottom plate, after air tightness detection, the first telescopic air cylinder pushes the bottom plate to move upwards by a set distance, and the bottom plate drives the new energy battery box to move upwards by the set distance through the lower module; the second telescopic air cylinder pushes the new energy battery box to move towards the discharging mechanism, the discharging mechanism discharges the new energy battery box, manual feeding and discharging of the new energy battery box are not needed, and therefore the airtightness detection speed of the new energy battery box is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of airtight detection equipment, and particularly relates to a pass-through airtight detection equipment for a new energy battery box. Background Art

[0002] The battery box (battery pack housing) of a new energy vehicle is an important part of the power battery system, mainly responsible for carrying and protecting the battery cells and the battery management system (BMS). At the same time, it meets multiple requirements such as lightweight, strength, airtightness, and thermal management. The battery box of a new energy vehicle can resist external force impacts such as collision, extrusion, and puncture, ensure the safety of the battery cells, reduce external electromagnetic interference, protect the BMS signal transmission, and reduce weight on the premise of ensuring strength, thereby improving the endurance of the whole vehicle.

[0003] In the manufacturing industry of new energy vehicle battery boxes, airtightness detection is required after the battery boxes are processed. Most of the existing detection methods are that workers manually put the new energy battery boxes into the tooling for detection. Manually putting the new energy battery boxes into the tooling and taking them out takes a lot of time, thus reducing the detection speed of the new energy battery boxes. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that manually putting the new energy battery boxes into the tooling and taking them out takes a lot of time, thereby reducing the detection speed of the new energy battery boxes, and to propose a pass-through airtight detection equipment for a new energy battery box.

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

[0006] Design a pass-through airtight detection equipment for a new energy battery box, including a frame. One side of the frame is connected with a blanking mechanism, the other side of the frame is connected with a feeding mechanism, the bottom end of the frame is connected with a first telescopic cylinder, the telescopic end of the first telescopic cylinder is connected with a bottom plate, the upper end of the bottom plate is connected with a lower die part, the bottom plate is connected with a second telescopic cylinder for pushing the battery box to move, both sides inside the frame are connected with a limiting mechanism for limiting the battery box, one side of the frame is connected with an air circuit detection mechanism, the upper end inside the frame is connected with a pressing and sealing mechanism for sealing the battery box, and the upper end of the frame is connected with a fixed box, and an information processor is connected inside the fixed box.

[0007] Preferably, the blanking mechanism and the feeding mechanism have the same structure, and the heights of the blanking mechanism and the feeding mechanism are the same.

[0008] Preferably, the feeding mechanism includes two parallel support frames, both of the two support frames are detachably connected to the frame, and a plurality of support feet are connected to the bottom end of each support frame. A height-adjustable roller conveyor is connected to the opposite sides of the two support frames.

[0009] Preferably, a rubber coating layer is provided on the roller wheels of the roller conveyor.

[0010] Preferably, a plurality of observation ports are provided on both sides of the frame, and an observation window is connected to each observation port.

[0011] Preferably, the pressing and sealing mechanism includes a plurality of fourth telescopic cylinders, all of the plurality of fourth telescopic cylinders are fixedly connected to the upper end inside the frame, and a first pressing plate is fixedly connected to the telescopic end of each fourth telescopic cylinder. A plurality of fifth telescopic cylinders are connected to the upper end inside the frame, and a second pressing plate is fixedly connected to the telescopic end of each fifth telescopic cylinder. A connecting plate is fixedly connected to the bottom end of each second pressing plate, and the same sealing plate is fixedly connected to the bottom end of each connecting plate. The sealing plate is located inside the limiting mechanism.

[0012] Preferably, the limiting mechanism includes two symmetrically arranged third telescopic cylinders, both of the two symmetrically arranged third telescopic cylinders are fixedly connected to the frame, and a fixing frame is connected to the telescopic end of each third telescopic cylinder. A plurality of limiting heads are connected at equal intervals along the length direction on the opposite sides of the two fixing frames. The sealing plate is located between the two fixing frames.

[0013] Preferably, the air circuit detection mechanism includes an air storage tank, the air storage tank is fixedly connected to the frame, a metal conduit is communicated with the outlet of the air storage tank, a solenoid valve is connected to the metal conduit, one end of the metal conduit is communicated with a telescopic tube, and one end of the telescopic tube is communicated with the bottom end of the lower die part.

[0014] Preferably, the information processor includes a housing, a processor is connected inside the housing, the processor is signal-connected to a data acquisition module, the processor is signal-connected to a recording module, and the processor is signal-connected to an alarm module.

[0015] Preferably, the processor is signal-connected to a cloud docking module, and the processor is signal-connected to a communication interface module.

[0016] The beneficial effects of a new energy battery box through-type airtight detection device proposed by the present invention are as follows:

[0017] The new energy battery box is placed on the feeding mechanism for conveying. The conveyed new energy battery box falls on the bottom plate. After airtightness detection, the first telescopic cylinder pushes the bottom plate upward by a set distance. The bottom plate drives the new energy battery box upward by a set distance through the lower die part. The second telescopic cylinder pushes the new energy battery box in the direction of the discharging mechanism, and the discharging mechanism discharges the new energy battery box. The loading and unloading of the new energy battery box do not require manual operation, thus accelerating the airtightness detection speed of the new energy battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic structural diagram of a through-type airtightness detection device for a new energy battery box proposed by the present invention;

[0019] Figure 2 FIG. is a schematic structural diagram of a through-type airtightness detection device for a new energy battery box proposed by the present invention (removing the air circuit detection mechanism);

[0020] Figure 3 FIG. is a schematic structural diagram of the connection between the frame and the pressing and sealing mechanism in a through-type airtightness detection device for a new energy battery box proposed by the present invention;

[0021] Figure 4 FIG. is a front view structural diagram of the connection between the frame and the pressing and sealing mechanism in a through-type airtightness detection device for a new energy battery box proposed by the present invention;

[0022] Figure 5 FIG. is a schematic structural diagram of the pressing and sealing mechanism in a through-type airtightness detection device for a new energy battery box proposed by the present invention;

[0023] Figure 6 FIG. is a schematic structural diagram of the connection between the frame and the limiting mechanism in a through-type airtightness detection device for a new energy battery box proposed by the present invention;

[0024] Figure 7 FIG. is a schematic structural diagram of the connection between the frame and the fourth telescopic cylinder in a through-type airtightness detection device for a new energy battery box proposed by the present invention;

[0025] Figure 8 FIG. is a schematic structural diagram of the connection between the frame and the sealing plate in a through-type airtightness detection device for a new energy battery box proposed by the present invention.

[0026] In the figure: 1. Frame; 2. Blank feeding mechanism; 3. Loading mechanism; 4. Observation port; 5. Observation window; 6. First telescopic cylinder; 7. Bottom plate; 8. Lower die part; 9. Second telescopic cylinder; 10. Flow type detector; 11. Air storage tank; 12. Third telescopic cylinder; 13. Fixed frame; 14. Limit head; 15. Fourth telescopic cylinder; 16. First pressing plate; 17. Fifth telescopic cylinder; 18. Second pressing plate; 19. Connecting plate; 20. Sealing plate; 21. Fixed box; 22. Information processor; 31. Support frame; 32. Support feet; 33. Roller conveyor part. Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] Example 1: Refer to Figure 1-8 , a pass-through airtight detection device for a new energy battery box, including a frame 1, a blank feeding mechanism 2 is connected to one side of the frame 1, a loading mechanism 3 is connected to the other side of the frame 1. The blank feeding mechanism 2 and the loading mechanism 3 have the same structure, and the blank feeding mechanism 2 and the loading mechanism 3 have the same height. A plurality of observation ports 4 are opened on both sides of the frame 1, and an observation window 5 is connected to each observation port 4. The observation window 5 is made of brown acrylic board, which is convenient for manual inspection of leakage points. A first telescopic cylinder 6 is connected to the bottom end of the frame 1, a bottom plate 7 is connected to the telescopic end of the first telescopic cylinder 6, a lower die part 8 is connected to the upper end of the bottom plate 7, a second telescopic cylinder 9 for pushing the battery box to move is connected to the bottom plate 7, a flow type detector 10 is connected to the lower die part 8, a pressure relief valve is connected to the bottom end of the lower die part 8, and a vacuum pump is connected to the bottom end of the lower die part 8. Limiting mechanisms for limiting the battery box are connected to both sides inside the frame 1, an air circuit detection mechanism is connected to one side of the frame 1, the air circuit detection mechanism is communicated with the lower die part 8, a pressing and sealing mechanism for sealing the battery box is connected to the upper end inside the frame 1, a code scanning mechanism is connected to the bottom end inside the frame 1, a fixed box 21 is connected to the upper end of the frame 1, and an information processor 22 is connected inside the fixed box 21;

[0029] The air circuit detection mechanism includes an air storage tank 11, the air storage tank 11 is fixedly connected to the frame 1, a metal conduit is connected to the outlet of the air storage tank 11, an electromagnetic valve is connected to the metal conduit, one end of the metal conduit is communicated with a telescopic tube, and one end of the telescopic tube is communicated with the bottom end of the lower die part 8;

[0030] The information processor 22 includes a housing, a processor is connected inside the housing, the processor is signal-connected to a data acquisition module, the processor is signal-connected to a recording module, the processor is signal-connected to an alarm module, the processor is signal-connected to a cloud docking module, and the cloud docking module uploads historical data to the MES / SCADA system to meet the needs of intelligent manufacturing. The processor is signal-connected to a communication interface module, and the communication interface module is linked with the whole-line PLC system to achieve production beat synchronization.

[0031] Working process:

[0032] Place the new energy battery box on the feeding mechanism 3 for feeding. When the new energy battery box enters the frame 1, the code scanning mechanism scans the new energy battery box to obtain the information of the new energy battery box. The obtained information is transmitted into the data acquisition module, and the data acquisition module imports the information into the processor to automatically record the product information and realize the binding of the detection data and the production batch.

[0033] The limiting mechanism limits the new energy battery box on the feeding mechanism 3 so that the new energy battery box accurately falls into the lower die 8. After the pressing and sealing mechanism is started, it moves downward. After the pressing and sealing mechanism moves downward, it squeezes the new energy battery box so that the new energy battery box is in close contact with the lower die 8. At the same time, the holes on the new energy battery box are sealed. A chamber is formed between the new energy battery box and the lower die 8. The chamber is connected to a flow-type detector 10, a pressure relief valve, a telescopic tube and a vacuum pump. After the vacuum pump is started, the gas in the chamber is evacuated. Then, the solenoid valve is opened, and the compressed air in the air storage tank 11 is introduced into the chamber through the metal conduit and the telescopic tube. First, it is fast-charged for 30 seconds, and then continuously inflated for 180 seconds. After the inflation is over, the solenoid valve is closed, and then it is pressure-held for 60 seconds. During the pressure-holding process, the flow-type detector 10 detects the air pressure in the chamber. The flow-type detector 10 transmits the detected air pressure data into the data acquisition module. The processor judges the airtightness of the new energy battery box according to the air pressure data. When the data detected by the flow-type detector 10 remains unchanged, the new energy battery box does not leak air. When the data detected by the flow-type detector 10 is continuously decreasing, the new energy battery box leaks air, and at this time, the alarm module issues an alarm.

[0034] After the detection is completed, the pressure relief valve is opened, and the gas in the chamber is discharged from the pressure relief valve. After the gas is discharged, the pressing and sealing mechanism moves upward to reset. The first telescopic cylinder 6 is started to push the bottom plate 7 upward by a set distance. The bottom plate 7 drives the new energy battery box to move upward by a set distance through the lower die 8. The second telescopic cylinder is started to push the new energy battery box in the direction of the discharging mechanism 2. After the new energy battery box moves a certain distance, it falls on the upper end of the discharging mechanism 2, and the discharging mechanism 2 discharges the new energy battery box.

[0035] The new energy battery box is placed on the feeding mechanism 3 for transportation. The transported new energy battery box falls on the bottom plate 7. After airtightness detection, the first telescopic cylinder 6 pushes the bottom plate 7 to move upward by a set distance. The bottom plate 7 drives the new energy battery box to move upward by a set distance through the lower die part 8. The second telescopic cylinder pushes the new energy battery box to move towards the discharging mechanism 2. After the new energy battery box moves a certain distance, it falls on the upper end of the discharging mechanism 2. The discharging mechanism 2 discharges the new energy battery box. The loading and unloading of the new energy battery box do not require manual operation, thus accelerating the airtightness detection speed of the new energy battery box. At the same time, by precisely controlling gas filling, the data acquisition module collects data, and the processor analyzes the collected data to detect the airtightness of the new energy battery box, realizing efficient and stable airtightness detection of the new energy battery box.

[0036] Embodiment 2: During the feeding process of the new energy battery box, it is easy to scratch the new energy battery box. Referring to Figure 2 , as another preferred embodiment of the present invention, the difference from Embodiment 1 is that the feeding mechanism 3 includes two parallel support frames 31. Both support frames 31 are detachably connected to the frame 1. The bottom end of each support frame 31 is connected with a plurality of support feet 32. A height-adjustable roller conveyor 33 is connected to the opposite side of the two support frames 31. The roller conveyor 33 is provided with a rubber-coated layer on the roller wheels. The support feet 32 support the support frame 31, the support frame 31 supports the roller conveyor 33, and the roller conveyor 33 transports the new energy battery box. The rubber-coated layer is provided on the roller wheels to prevent scratching, and the distribution density is optimized to ensure smooth transmission.

[0037] Embodiment 3: When squeezing and sealing the new energy battery box, the sealing effect of the new energy battery box is affected, thereby reducing the detection effect. Referring to Figure 3 , as another preferred embodiment of the present invention, the difference from Embodiment 1 is that the pressing and plugging mechanism includes a plurality of fourth telescopic cylinders 15. All the fourth telescopic cylinders 15 are fixedly connected to the upper end inside the frame 1, and a first pressing plate 16 is fixedly connected to the telescopic end of each fourth telescopic cylinder 15. A plurality of fifth telescopic cylinders 17 are connected to the upper end inside the frame 1. A second pressing plate 18 is fixedly connected to the telescopic end of each fifth telescopic cylinder 17. A connecting plate 19 is fixedly connected to the bottom end of each second pressing plate 18, and the same sealing plate 20 is fixedly connected to the bottom end of each connecting plate 19. The sealing plate 20 is located inside the limiting mechanism;

[0038] When extruding and sealing a new energy battery box, each fourth telescopic cylinder 15 drives the first pressing plate 16 to move downward by a set distance. After several first pressing plates 16 move downward by the set distance, they contact the upper side edges of the new energy battery box, squeezing and fixing the four sides of the new energy battery box. At the same time, each fifth telescopic cylinder 17 drives the second pressing plate 18 to move downward by a set distance, and each second pressing plate 18 drives the connecting plate 19. Several connecting plates 19 drive the sealing plate 20 to move downward by a set distance. After the sealing plate 20 moves downward by the set distance, it squeezes and seals the through holes on the new energy battery box. Several first pressing plates 16 squeeze and fix the four sides of the new energy battery box, and the sealing plate 20 squeezes and seals the through holes on the new energy battery box, improving the sealing effect of the new energy battery box.

[0039] Embodiment 4: When the feeding mechanism 3 feeds and conveys the new energy battery box, the new energy battery box is prone to shift during the feeding process, resulting in the new energy battery box being unable to accurately fall into the lower die part 8. Refer to Figure 5 , as another preferred embodiment of the present invention, different from Embodiment 1, the limiting mechanism includes two symmetrically arranged third telescopic cylinders 12. The two symmetrically arranged third telescopic cylinders 12 are both fixedly connected to the frame 1. A fixed frame 13 is connected to the telescopic end of each third telescopic cylinder 12. A number of limiting heads 14 are equidistantly connected along the length direction on the opposite side of the two fixed frames 13. The sealing plate 20 is located between the two fixed frames 13. The fixed frame 13 fixes the limiting heads 14. The new energy battery box passes through between the two opposite limiting heads 14. The limiting heads 14 limit the new energy battery box, enabling the new energy battery box to accurately fall into the lower die part 8.

[0040] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A pass-through airtight detection device for a new energy battery box, comprising a frame (1), one side of the frame (1) is connected with a blanking mechanism (2), and the other side of the frame (1) is connected with a feeding mechanism (3), characterized in that, Wherein: A first telescopic cylinder (6) is connected to the bottom end of the frame (1). A bottom plate (7) is connected to the telescopic end of the first telescopic cylinder (6). A lower die member (8) is connected to the upper end of the bottom plate (7). A second telescopic cylinder (9) for pushing the battery box to move is connected to the bottom plate (7). Limiting mechanisms for limiting the battery box are connected to both sides inside the frame (1). An air circuit detection mechanism is connected to one side of the frame (1). A pressing and sealing mechanism for sealing the battery box is connected to the upper end inside the frame (1). A fixed box (21) is connected to the upper end of the frame (1), and an information processor (22) is connected inside the fixed box (21).

2. The pass-through airtight detection device for a new energy battery box according to claim 1, characterized in that, The blanking mechanism (2) has the same structure as the feeding mechanism (3), and the blanking mechanism (2) and the feeding mechanism (3) have the same height.

3. The pass-through airtight detection device for a new energy battery box according to claim 2, characterized in that, The feeding mechanism (3) includes two parallel support frames (31). Both of the support frames (31) are detachably connected to the frame (1). A plurality of support feet (32) are connected to the bottom end of each support frame (31). A height-adjustable roller conveyor (33) is connected to the opposite sides of the two support frames (31).

4. The pass-through airtight detection device for the new energy battery box according to claim 3, characterized in that, The roller wheels of the roller conveyor (33) are provided with rubber coating layers.

5. The pass-through airtight detection device for a new energy battery box according to claim 1, characterized in that, A plurality of observation ports (4) are opened on both sides of the frame (1), and an observation window (5) is connected to each observation port (4).

6. The pass-through airtight detection device for a new energy battery box according to claim 5, characterized in that, The pressing and sealing mechanism includes a plurality of fourth telescopic cylinders (15). All of the fourth telescopic cylinders (15) are fixedly connected to the upper end inside the frame (1), and a first pressing plate (16) is fixedly connected to the telescopic end of each fourth telescopic cylinder (15). A plurality of fifth telescopic cylinders (17) are connected to the upper end inside the frame (1). A second pressing plate (18) is fixedly connected to the telescopic end of each fifth telescopic cylinder (17). A connecting plate (19) is fixedly connected to the bottom end of each second pressing plate (18). The same sealing plate (20) is fixedly connected to the bottom end of each connecting plate (19), and the sealing plate (20) is located inside the limiting mechanism.

7. The in-line airtight detection device for a new energy battery box according to claim 6, wherein, The limiting mechanism includes two symmetrically arranged third telescopic cylinders (12). Both of the symmetrically arranged third telescopic cylinders (12) are fixedly connected to the frame (1). A fixed frame (13) is connected to the telescopic end of each third telescopic cylinder (12). A plurality of limiting heads (14) are connected to the opposite sides of the two fixed frames (13) at equal intervals along the length direction, and the sealing plate (20) is located between the two fixed frames (13).

8. The pass-through airtight detection device for a new energy battery box according to claim 7, characterized in that, The air circuit detection mechanism includes an air storage tank (11). The air storage tank (11) is fixedly connected to the frame (1). A metal conduit is communicated with the outlet of the air storage tank (11). An electromagnetic valve is connected to the metal conduit. One end of the metal conduit is communicated with a telescopic tube, and one end of the telescopic tube is communicated with the bottom end of the lower die member (8).

9. The pass-through airtight detection device for a new energy battery box according to claim 1, characterized in that The information processor (22) includes a housing, a processor is connected inside the housing, the processor is signal-connected to a data acquisition module, the processor is signal-connected to a recording module, and the processor is signal-connected to an alarm module.

10. The pass-through airtight detection device for a new energy battery box according to claim 9, wherein, The processor is signal-connected to a cloud docking module, and the processor is signal-connected to a communication interface module.

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