A new energy ship hybrid power common rail system operation test device

Abstract

This invention belongs to the field of vehicle and ship power testing technology, and in particular to a test device for the operation of a new energy ship hybrid common rail system. It includes a test pool containing a battery pack, and a simulation test assembly on the surface of the test pool. The simulation test assembly includes a sealed test push plate inside the test pool, a simulated test ship (causing water to ripple within the test pool via the sealed test push plate), a vehicle / ship test motor, a first rotating disk, a first rectangular frame, a first rotating shaft, a lower connecting rod, a second rectangular frame, an auxiliary rotating rod, a rectangular support, and a second rotating shaft. This invention facilitates the simulation of waves under different sea conditions within the test pool through the coordinated operation of mechanical structures, impacting the simulated test ship and causing changes in the battery pack's power output to test its charging and discharging performance and operational stability. It also allows for the adjustment of wave parameters and the use of inclined baffles to dampen waves and protective covers to prevent water splashing, thus improving testing effectiveness and safety.

Description

Technical Field

[0001] This invention belongs to the field of vehicle and ship power testing technology, specifically relating to a test device for the operation of a new energy ship hybrid common rail system. Background Technology

[0002] With the promotion of energy conservation and emission reduction, the trend of electrification of vehicle and ship power is becoming increasingly apparent. However, pure electric systems suffer from problems such as long charging times, a shortage of charging infrastructure, and short driving range. Hybrid systems can leverage the power advantages of electric drive and have enormous potential for energy conservation and emission reduction. Compared to pure electric systems, hybrid systems have advantages such as high energy density, low cost, and high output power density. Therefore, the development of hybrid powertrain systems for vehicles and ships is of great significance.

[0003] According to announcement number CN116296437B, a production line operation testing device for a new energy hybrid power system is disclosed. This technology discloses "a battery pack testing unit, an engine testing unit, and a transmission mechanism. The battery pack on the battery pack testing unit and the engine on the engine testing unit drive the axle to rotate through the transmission mechanism. The end of the axle is used to connect a dynamometer and other technical solutions. It has the technical effect of causing the power output of the battery pack to change in a targeted manner when different operating temperatures are applied to the battery pack, thereby testing the charging and discharging performance of the battery pack and the working stability of each component in the transmission mechanism at different speeds."

[0004] Although the technology has certain advantages, it still has significant shortcomings for the special application scenarios of new energy ships. In actual operation, the battery pack of new energy ships is usually placed inside the ship's hull, which makes the temperature change around the battery pack relatively slow, which is quite different from the land test environment. During the voyage, the ship is constantly subjected to vibration and impact caused by factors such as waves and currents. Traditional test devices are difficult to generate waves of different frequencies, heights and directions, and cannot truly reflect the impact force on the battery pack under different sea conditions.

[0005] To address these issues, a testing device for the operation of a new energy ship hybrid common rail system was designed. Summary of the Invention

[0006] To address the problems mentioned in the background section, this invention provides a testing device for the operation of a common rail hybrid power system for new energy ships, which can effectively solve the problems mentioned in the background section.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a test device for the operation of a new energy ship hybrid common rail system, comprising a test pool, wherein a battery pack body is disposed inside the test pool;

[0008] The surface of the test pool is provided with a simulation test component, which includes a sealed test push plate disposed inside the test pool and a simulation test vessel, vehicle and ship test motor, a first rotating disk, a first rectangular frame, a first rotating shaft, a lower connecting rod, a second rectangular frame, an auxiliary rotating rod, a rectangular support, and a second rotating shaft that cause water to fluctuate inside the test pool through the sealed test push plate.

[0009] A variable speed testing assembly is provided on one side of the test pool. The variable speed testing assembly includes a U-shaped clamp, a U-shaped bracket, a side plate, a third rotating shaft, a second rotating disk, a first synchronous pulley, a synchronous belt, a second synchronous pulley, an arc-shaped friction block, an inclined support rod, a T-shaped plate, a rectangular plate, a spring, and a rectangular slide bar for adjusting the intensity of water fluctuations inside the test pool.

[0010] The test pool is equipped with a draft adjustment assembly, which includes a square longitudinal bar, a counterweight frame plate, a rectangular tube sleeve, an internal insert rod, and a connecting plate for adjusting the draft of the simulated test vessel.

[0011] As a preferred embodiment of the testing device for a common rail hybrid power system for new energy ships according to the present invention, a rectangular support is provided above the test pool. A lower connecting rod is inserted into a lower slot on the bottom surface of the rectangular support. The lower connecting rod and the rectangular support are slidably connected. A second rotating shaft is fixedly connected inside the lower connecting rod. A sealing test push plate is inserted inside the test pool. A second U-shaped locking block is fixedly connected to the surface of the sealing test push plate. An auxiliary rotating rod is inserted inside the second U-shaped locking block. The auxiliary rotating rod is rotatably connected to the second U-shaped locking block via a first pin. A second rectangular frame is inserted into a groove at the end of the auxiliary rotating rod away from the second U-shaped locking block. A first U-shaped locking block is fitted at the end of the second rectangular frame away from the auxiliary rotating rod. The first U-shaped locking block is fixedly connected inside the test pool. The two ends of the second rectangular frame are rotatably connected to the first U-shaped locking block and the auxiliary rotating rod respectively via a second pin. The second rectangular frame is located in a slot at the bottom end of the lower connecting rod, and the second rotating shaft is located inside the second rectangular frame. The second rotating shaft and the second rectangular frame are movably connected.

[0012] As a preferred embodiment of the new energy ship hybrid common rail system operation testing device of the present invention, the top end of the lower connecting rod is fixedly connected to a first rectangular frame, a first rotating shaft is inserted inside the first rectangular frame, the first rotating shaft and the first rectangular frame are slidably connected, a longitudinal mounting plate is fixedly connected to the upper surface of the test pool, a transverse mounting plate is fixedly connected to the surface of the longitudinal mounting plate, a vehicle-ship test motor is mounted on the surface of the transverse mounting plate, a first rotating disk is fixedly connected to the end of the output shaft of the vehicle-ship test motor, one end of the first rotating shaft is fixedly connected to the first rotating disk, an upper connecting rod is inserted into the upper slot opened on the upper surface of the rectangular bracket, the upper connecting rod and the rectangular bracket are slidably connected, and the bottom end of the upper connecting rod is fixedly connected to the upper surface of the first rectangular frame.

[0013] As a preferred embodiment of the new energy ship hybrid common rail system operation testing device of the present invention, a simulated test ship is arranged inside the test pool, a vehicle-ship test bracket is fixedly connected inside the simulated test ship, a vehicle-ship test support plate is fixedly connected to the bottom surface of the simulated test ship, the battery pack body is inserted inside the vehicle-ship test bracket, and the bottom surface of the battery pack body is in contact with the surface of the vehicle-ship test support plate, a counterweight rod is arranged below the simulated test ship, the counterweight rod is inserted into a rod groove opened inside the test pool, the counterweight rod is slidably connected to the test pool, and a plurality of vehicle-ship test pull ropes are arranged between the counterweight rod and the simulated test ship, with the two ends of the vehicle-ship test pull ropes fixedly connected to the counterweight rod and the simulated test ship respectively.

[0014] As a preferred embodiment of the new energy ship hybrid common rail system operation testing device of the present invention, the bottom surface of the rectangular bracket is fixedly connected to two T-shaped sliders, and the two T-shaped sliders are respectively inserted into two T-shaped slots opened on one side of the test pool, and the T-shaped sliders are slidably connected to the test pool.

[0015] As a preferred embodiment of the new energy ship hybrid common rail system operation testing device of the present invention, a transverse limiting rod is inserted into two through slots on the surface of the sealing test push plate. One end of the transverse limiting rod is fixedly connected to the test pool, the sealing test push plate and the transverse limiting rod are slidably connected, and the sealing test push plate and the test pool are slidably sealed.

[0016] As a preferred embodiment of the new energy ship hybrid common rail system operation testing device of the present invention, a protective cover is fixedly connected to the upper surface of the test pool, and multiple inclined baffles are equidistantly arranged inside the test pool, with the two ends of the inclined baffles being fixedly connected to the protective cover and the test pool, respectively.

[0017] As a preferred embodiment of the new energy ship hybrid common rail system operation testing device of the present invention, a base plate is fixedly connected to one side of the test pool. A U-shaped clamping plate and a U-shaped bracket are fixedly connected to the upper surface of the base plate. The U-shaped bracket is located between the U-shaped clamping plate and the test pool. A T-shaped plate is inserted inside the U-shaped bracket. The T-shaped plate and the U-shaped bracket are slidably connected. A rectangular plate is provided between the T-shaped plate and the U-shaped clamping plate. Multiple springs are fixedly connected to the side of the rectangular plate near the T-shaped plate. The ends of the springs away from the rectangular plate are fixedly connected to the T-shaped plate. A rectangular sliding rod is inserted into a rectangular slot on one side of the T-shaped plate. The T-shaped plate is slidably connected to the rectangular plate. One end of the rectangular slide rod is fixedly connected to the rectangular plate. Multiple rotating rollers are installed inside the U-shaped plate. The rotating rollers are rotatably connected to the U-shaped plate. The surface of the rotating rollers is in contact with the surface of the rectangular plate. A third U-shaped block is fixedly connected to the side of the T-shaped plate away from the rectangular plate. A fourth U-shaped block is fixedly connected to one side of the rectangular support. The two ends of the inclined support rod are respectively inserted into the interior of the third U-shaped block and the fourth U-shaped block. The two ends of the inclined support rod are rotatably connected to the interior of the third U-shaped block and the fourth U-shaped block through axle pins. An upper pull rod is fixedly connected to the upper surface of the T-shaped plate.

[0018] As a preferred embodiment of the new energy ship hybrid common rail system operation testing device of the present invention, the U-shaped bracket is fixedly connected to two side plates on both sides. A third rotating shaft is inserted into the rotating holes opened inside the two side plates. The third rotating shaft and the side plates are rotatably connected. A first synchronous pulley and a second rotating disk are sleeved on the surface of the third rotating shaft. The first synchronous pulley and the second rotating disk are both fixedly connected to the third rotating shaft. An arc-shaped friction block is fixedly connected to the circumferential surface of the second rotating disk. The first synchronous pulley and the second rotating disk are located between the two side plates. A second synchronous pulley is fixedly sleeved on the surface of the vehicle / ship test motor output shaft. The second synchronous pulley is located between the first rotating disk and the vehicle / ship test motor. A synchronous belt is sleeved on the surface of the first synchronous pulley and the second synchronous pulley, and the second synchronous pulley is connected to the first synchronous pulley through the synchronous belt.

[0019] As a preferred embodiment of the new energy ship hybrid common rail system operation testing device of the present invention, the test pool is internally fixedly connected to an internally inserted rod, the surface of the internally inserted rod is fitted with a rectangular tube sleeve, the rectangular tube sleeve and the internally inserted rod are slidably connected, the top end of the rectangular tube sleeve is fixedly connected to a square longitudinal rod, the surface of the square longitudinal rod is fitted with multiple counterweight frame plates, the counterweight frame plates and the square longitudinal rod are slidably connected, the surface of the rectangular tube sleeve is fixedly connected to a connecting plate, and the end of the connecting plate away from the rectangular tube sleeve is fixedly connected to the counterweight rod.

[0020] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a scientific and reasonable structure and is safe and convenient to use.

[0021] 1. Equipped with a simulation test component, it is beneficial to simulate waves under different sea conditions in the test pool through the coordinated operation of the mechanical structure, generate impact on the simulated test ship, and change the power output of the battery pack to test its charging and discharging performance and working stability. It can also adjust wave parameters and use inclined baffles to dampen waves and protective covers to prevent water splashing, thereby improving the test effect and safety.

[0022] The vehicle and ship test motor drives the first rotating disk to rotate, causing the first rotating shaft to rotate and move longitudinally within the first rectangular frame. Through the lower connecting rod and the second rotating shaft, the second rectangular frame is driven to rotate, pulling or pushing the sealed test push plate to move back and forth in the test pool, causing the water to undulate periodically and form waves. This simulates the test ship being impacted by waves. The vehicle and ship test rope and counterweight rod work together to generate fluctuations, causing the battery pack body to shake, thereby causing targeted changes in the power output of the battery pack.

[0023] The equidistant inclined baffles can cause the reflected water waves to interfere with each other and cancel each other out, reducing the amplitude of the water waves and achieving the purpose of wave suppression. The protective cover can prevent water from splashing.

[0024] 2. A variable speed test assembly is provided, which uses a vehicle and ship test motor to drive synchronous pulleys of different diameters. The T-shaped plate is pushed through an arc-shaped friction block, and the rectangular bracket is moved by the inclined support rod. The position of the second rotating shaft is adjusted, and the movement range of the sealed test push plate is changed. This allows for the adjustment of the wave frequency and wave height in the test pool, meeting the requirements of battery pack performance testing for different wave conditions.

[0025] 3. Equipped with a draft adjustment component, the draft of the simulated test vessel can be adjusted by adding or removing counterweight frames to change the pulling force on the vessel. Combined with wave impact, the test vessel can be simulated under different load conditions to test the battery pack performance, thereby improving the realism and reliability of the test. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 For the present invention Figure 1 Sectional view at point AA;

[0029] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0030] Figure 4 For the present invention Figure 2Enlarged view of point B in the middle;

[0031] Figure 5 This is a schematic diagram of the counterweight bar and the vehicle / ship test rope in this invention;

[0032] Figure 6 This is a schematic diagram of the T-shaped slider and rectangular support in this invention;

[0033] Figure 7 This is a schematic diagram of the structure of the second rectangular frame and the auxiliary rotating rod in this invention;

[0034] Figure 8 This is a schematic diagram of the inclined baffle and the test pool in this invention;

[0035] Figure 9 This is a schematic diagram of the structure of the U-shaped bracket and the T-shaped plate in this invention;

[0036] Figure 10 This is a schematic diagram of the rectangular slide bar and rectangular plate in this invention;

[0037] Figure 11 This is a schematic diagram of the structure of the second rotating disk and the arc-shaped friction block in this invention;

[0038] Figure 12 This is a schematic diagram of the structure of the U-shaped card plate and the U-shaped bracket in this invention;

[0039] Figure 13 This is a schematic diagram of the T-shaped plate and the inclined strut in this invention;

[0040] Figure 14 This is a schematic diagram of the structure of the first synchronous wheel and the second rotating disk in this invention;

[0041] In the picture:

[0042] 1. Test cell; 2. Battery pack body; 3. Simulation test components; 31. Vehicle / ship test support plate; 32. Vehicle / ship test bracket; 33. Simulation test vessel; 34. Counterweight bar; 35. Vehicle / ship test pull rope; 36. Bar groove; 37. Rectangular bracket; 38. T-shaped slider; 39. T-shaped slide; 310. Longitudinal mounting plate; 311. Transverse mounting plate; 312. Vehicle / ship test motor; 313. First rotating disk; 314. First rectangular frame; 315. First rotating shaft; 316. Upper connecting rod; 317. Lower connecting rod; 318. Sealing test push plate; 319. First U-shaped locking block; 320. Second U-shaped locking block; 321. Auxiliary rotating rod; 322. Second rectangular frame; 323. Transverse limiting rod; 324. Second rotating shaft; 325. Upper 326. Slot; 327. Lower slot; 328. Protective cover; 329. Inclined stop bar; 4. Gear shift test assembly; 41. Base plate; 42. U-shaped clamping plate; 43. Rotating roller; 44. U-shaped bracket; 45. Side plate; 46. Third rotating shaft; 47. Second rotating disk; 48. First synchronous pulley; 49. Synchronous belt; 410. Second synchronous pulley; 411. Arc-shaped friction block; 412. Third U-shaped clamping block; 413. Inclined support rod; 414. Fourth U-shaped clamping block; 415. T-shaped plate; 416. Upper pull rod; 417. Rectangular plate; 418. Spring; 419. Rectangular slide bar; 420. Rectangular slot; 5. Draft adjustment assembly; 51. Square longitudinal bar; 52. Counterweight frame plate; 53. Rectangular tube sleeve; 54. Internal insertion rod; 55. Connecting plate. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Example: Figures 1-14 As shown, the present invention provides a technical solution: a test device for the operation of a new energy ship hybrid common rail system, including a test pool 1, and a battery pack body 2 is installed inside the test pool 1.

[0045] The surface of test pool 1 is provided with a simulation test assembly 3, which includes a sealing test push plate 318, a vehicle / ship test support plate 31, a vehicle / ship test bracket 32, a simulation test vessel 33, a counterweight rod 34, a vehicle / ship test pull rope 35, a rectangular bracket 37, a T-shaped slider 38, a longitudinal mounting plate 310, a transverse mounting plate 311, a vehicle / ship test motor 312, a first rotating disk 313, a first rectangular frame 314, a first rotating shaft 315, a lower connecting rod 317, a first U-shaped locking block 319, a second U-shaped locking block 320, a protective cover 327, an inclined stop bar 328, a second rectangular frame 322, an auxiliary rotating rod 321, and a second rotating shaft 324. A rectangular bracket 37 is provided above test pool 1. A lower connecting rod 317 is inserted into a lower slot 326 on the bottom surface of the rectangular bracket 37. The lower connecting rod 317 and the rectangular bracket 37 are slidably connected. The second rotating shaft 324 is fixedly connected inside the lower connecting rod 317. A sealing test push plate 318 is inserted inside the test pool 1. A second U-shaped locking block 320 is fixedly connected to the surface of the sealing test push plate 318. An auxiliary rotating rod 321 is inserted inside the second U-shaped locking block 320. The auxiliary rotating rod 321 is rotatably connected to the second U-shaped locking block 320 through a pin. A second rectangular frame 322 is inserted into a groove at the end of the auxiliary rotating rod 321 away from the second U-shaped locking block 320. A first U-shaped locking block 319 is fitted at the end of the second rectangular frame 322 away from the auxiliary rotating rod 321. The first U-shaped locking block 319 is fixedly connected inside the test pool 1. The two ends of the second rectangular frame 322 are rotatably connected to the first U-shaped locking block 319 and the auxiliary rotating rod 321 respectively through a pin. The second rectangular frame 322 is located in a slot at the bottom of the lower connecting rod 317, and the second rotating shaft 324 is located inside the second rectangular frame 322. The second rotating shaft 324 and the second rectangular frame 322 are movably connected.

[0046] The top end of the lower connecting rod 317 is fixedly connected to a first rectangular frame 314. A first rotating shaft 315 is inserted inside the first rectangular frame 314. The first rotating shaft 315 and the first rectangular frame 314 are slidably connected. A longitudinal mounting plate 310 is fixedly connected to the upper surface of the test pool 1. A transverse mounting plate 311 is fixedly connected to the surface of the longitudinal mounting plate 310. A vehicle and ship test motor 312 is mounted on the surface of the transverse mounting plate 311. A first rotating disk 313 is fixedly connected to the end of the output shaft of the vehicle and ship test motor 312. One end of the first rotating shaft 315 is fixedly connected to the first rotating disk 313. An upper connecting rod 316 is inserted into the upper slot 325 opened on the upper surface of the rectangular bracket 37. The upper connecting rod 316 and the rectangular bracket 37 are slidably connected. The bottom end of the upper connecting rod 316 is fixedly connected to the upper surface of the first rectangular frame 314.

[0047] The test pool 1 contains a simulated test vessel 33. A vehicle-vehicle test bracket 32 ​​is fixedly connected inside the simulated test vessel 33. A vehicle-vehicle test support plate 31 is fixedly connected to the bottom surface of the simulated test vessel 33. The battery pack body 2 is inserted inside the vehicle-vehicle test bracket 32, and the bottom surface of the battery pack body 2 is in contact with the surface of the vehicle-vehicle test support plate 31. A counterweight rod 34 is provided below the simulated test vessel 33. The counterweight rod 34 is inserted into a rod groove 36 opened inside the test pool 1. The counterweight rod 34 and the test pool 1 are slidably connected. Multiple vehicle-vehicle test pull ropes 35 are provided between the counterweight rod 34 and the simulated test vessel 33. The two ends of the vehicle-vehicle test pull ropes 35 are fixedly connected to the counterweight rod 34 and the simulated test vessel 33, respectively.

[0048] Two T-shaped sliders 38 are fixedly connected to the bottom surface of the rectangular bracket 37. The two T-shaped sliders 38 are respectively inserted into two T-shaped grooves 39 opened on one side of the test pool 1, and the T-shaped sliders 38 and the test pool 1 are slidably connected.

[0049] Two through slots are provided on the surface of the sealing test push plate 318, and a transverse limiting rod 323 is inserted into each slot. One end of the transverse limiting rod 323 is fixedly connected to the test pool 1. The sealing test push plate 318 and the transverse limiting rod 323 are slidably connected, and the sealing test push plate 318 and the test pool 1 are slidably connected.

[0050] A protective cover 327 is fixedly connected to the upper surface of the test pool 1. Multiple inclined baffles 328 are equidistantly arranged inside the test pool 1. The two ends of the inclined baffles 328 are fixedly connected to the protective cover 327 and the test pool 1, respectively.

[0051] A speed change test assembly 4 is provided on one side of the test pool 1. The speed change test assembly 4 includes a base plate 41, a U-shaped clamping plate 42, a rotating roller 43, a U-shaped bracket 44, a side plate 45, a third rotating shaft 46, a second rotating disk 47, a first synchronous pulley 48, a synchronous belt 49, a second synchronous pulley 410, an arc-shaped friction block 411, a third U-shaped clamping block 412, an inclined support rod 413, a fourth U-shaped clamping block 414, a T-shaped plate 415, an upper pull rod 416, a rectangular plate 417, a spring 418, and... A rectangular sliding rod 419 is attached to a base plate 41 fixedly connected to one side of the test pool 1. A U-shaped clamping plate 42 and a U-shaped bracket 44 are fixedly connected to the upper surface of the base plate 41. The U-shaped bracket 44 is located between the U-shaped clamping plate 42 and the test pool 1. A T-shaped plate 415 is inserted inside the U-shaped bracket 44. The T-shaped plate 415 and the U-shaped bracket 44 are slidably connected. A rectangular plate 417 is provided between the T-shaped plate 415 and the U-shaped clamping plate 42. Multiple springs are fixedly connected to the side of the rectangular plate 417 near the T-shaped plate 415. Spring 418, the end of spring 418 away from rectangular plate 417 is fixedly connected to T-shaped plate 415. A rectangular slide rod 419 is inserted into a rectangular slot 420 on one side of T-shaped plate 415. The rectangular slide rod 419 is slidably connected to T-shaped plate 415. One end of the rectangular slide rod 419 is fixedly connected to rectangular plate 417. Multiple rotating rollers 43 are installed inside U-shaped clamping plate 42. The rotating rollers 43 are rotatably connected to U-shaped clamping plate 42. The surface of the rotating rollers 43 is in contact with the surface of rectangular plate 417. A third U-shaped locking block 412 is fixedly connected to the side of the T-shaped plate 415 away from the rectangular plate 417. A fourth U-shaped locking block 414 is fixedly connected to one side of the rectangular bracket 37. The two ends of the inclined support rod 413 are respectively inserted into the interior of the third U-shaped locking block 412 and the fourth U-shaped locking block 414, and the two ends of the inclined support rod 413 are respectively rotatably connected to the interior of the third U-shaped locking block 412 and the fourth U-shaped locking block 414 through a shaft pin. An upper pull rod 416 is fixedly connected to the upper surface of the T-shaped plate 415.

[0052] Side plates 45 are fixedly connected to both sides of the U-shaped bracket 44. A third rotating shaft 46 is inserted into the rotating holes opened inside the two side plates 45. The third rotating shaft 46 and the side plates 45 are rotatably connected. A first synchronous pulley 48 and a second rotating disk 47 are sleeved on the surface of the third rotating shaft 46. The first synchronous pulley 48 and the second rotating disk 47 are both fixedly connected to the third rotating shaft 46. An arc-shaped friction block 411 is fixedly connected to the circumferential surface of the second rotating disk 47. The first synchronous pulley 48 and the second rotating disk 47 are located between the two side plates 45. A second synchronous pulley 410 is fixedly sleeved on the surface of the output shaft of the vehicle and ship test motor 312. The second synchronous pulley 410 is located between the first rotating disk 313 and the vehicle and ship test motor 312. A synchronous belt 49 is sleeved on the surface of the first synchronous pulley 48 and the second synchronous pulley 410, and the second synchronous pulley 410 is connected to the first synchronous pulley 48 through the synchronous belt 49.

[0053] The test pool 1 is equipped with a water flow adjustment component 5, which includes a square vertical rod 51, a counterweight frame plate 52, a rectangular tube sleeve 53, an internal insertion rod 54, and a connecting plate 55. The internal insertion rod 54 is fixedly connected inside the test pool 1. The rectangular tube sleeve 53 is fitted on the surface of the internal insertion rod 54. The rectangular tube sleeve 53 and the internal insertion rod 54 are slidably connected. The top of the rectangular tube sleeve 53 is fixedly connected to the square vertical rod 51. Multiple counterweight frame plates 52 are fitted on the surface of the square vertical rod 51. The counterweight frame plates 52 and the square vertical rod 51 are slidably connected. The surface of the rectangular tube sleeve 53 is fixedly connected to the connecting plate 55. The end of the connecting plate 55 away from the rectangular tube sleeve 53 is fixedly connected to the counterweight rod 34.

[0054] Working principle: This new energy ship hybrid common rail system operation test device also includes an engine test unit and a transmission mechanism. The battery pack on the battery pack test unit and the engine on the engine test unit drive the axle to rotate through the transmission mechanism. The end of the axle is used to connect to the dynamometer, assembling the battery pack, engine and transmission mechanism of the hybrid system. This allows for targeted changes in the power output of the battery pack when different operating conditions are applied, thereby testing the charging and discharging performance of the battery pack and the working stability of each component in the transmission mechanism at different speeds. It can also identify potential safety defects in individual batches of battery packs and potential problems such as dynamic balance and abnormal noise in transmission components at specific speeds. In this way, the corresponding batch of hybrid system components can be reprocessed or replaced in a timely manner, reducing the after-sales failure rate and recall risk of the vehicle and ship. For details on this part, please refer to the production line operation test device of the new energy hybrid system disclosed in announcement number: CN116296437B, which will not be described in detail here.

[0055] Before testing, place the test pool 1 on a stable ground, carefully install the battery pack body 2 on the vehicle and ship test bracket 32 ​​inside the simulated test vessel 33, ensure that its bottom surface is in close contact with the vehicle and ship test support plate 31, and connect the relevant circuits and sensor lines to monitor the various performance parameters of the battery pack.

[0056] During the test, the vehicle and ship test motor 312 is connected to an external power source. The vehicle and ship test motor 312 is started by an external controller. The operation of the vehicle and ship test motor 312 causes its output shaft to drive the first rotating disk 313 to rotate. The rotation of the first rotating disk 313 causes the first rotating shaft 315 to rotate around the output shaft of the vehicle and ship test motor 312. During the rotation, the first rotating shaft 315 slides inside the first rectangular frame 314, causing the first rectangular frame 314 to move longitudinally. The movement of the first rectangular frame 314 causes the lower connecting rod 317 and the upper connecting rod 316 to slide inside the rectangular bracket 37 respectively. The movement of the lower connecting rod 317 causes the second rotating shaft 324 to move longitudinally.

[0057] When the first rectangular frame 314 drives the second rotating shaft 324 to move upward, the second rotating shaft 324 drives the second rectangular frame 322 to rotate inside the first U-shaped locking block 319 during the movement. As one end of the second rectangular frame 322 rotates inside the first U-shaped locking block 319, its other end drives the auxiliary rotating rod 321 to rotate inside the second U-shaped locking block 320, thereby pulling the sealing test push plate 318 to slide inside the test pool 1. When the first rectangular frame 314 drives the second rotating shaft 324 to move downward, it pushes the sealing test push plate 318 to slide inside the test pool 1. As the sealing test push plate 318 reciprocates inside the test pool 1, it applies a periodic thrust to the water, causing the water to undulate periodically, thus forming waves. This simulates the impact of waves on the simulated test vessel 33 during its sea voyage, and the waves... The impact on the simulated test vessel 33 causes it to fluctuate when hit by waves. Under the pull of the vehicle-vehicle test rope 35 and the gravity of the counterweight rod 34, the simulated test vessel 33 can fluctuate with the impact of waves. As the simulated test vessel 33 travels in the sea, the impact of waves on the simulated test vessel 33 causes the battery pack body 2 to vibrate, which in turn causes a targeted change in the power output of the battery pack body 2. This allows for testing of the charging and discharging performance and operational stability of the battery pack body 2, and helps to identify potential safety defects in individual batches of battery packs. It is beneficial to simulate waves under different sea conditions in the test pool 1 through the coordinated operation of the mechanical structure, which impact the simulated test vessel 33 and cause changes in the power output of the battery pack to test its charging and discharging performance and operational stability. It can also adjust wave parameters and use inclined baffles to absorb waves and protective covers to prevent water splashing, thereby improving the test effect and safety.

[0058] The vehicle and ship test motor 312 drives the first rotating disk 313 to rotate, causing the first rotating shaft 315 to rotate and move longitudinally within the first rectangular frame 314. Through the lower connecting rod 317 and the second rotating shaft 324, the second rectangular frame 322 is driven to rotate, pulling or pushing the sealed test push plate 318 to move back and forth within the test pool 1, causing the water to undulate periodically and form waves. This simulates the test ship 33 being impacted by waves. Through the vehicle and ship test pull rope 35 and the counterweight rod 34, the ship generates fluctuations, causing the battery pack body 2 to vibrate, thereby causing a targeted change in the power output of the battery pack.

[0059] During the simulation test of the ship 33 being impacted by waves and adjusting its draft, various sensors installed on the battery pack body 2, such as acceleration sensors, temperature sensors, current sensors, and voltage sensors, collect real-time performance data of the battery pack, including charging and discharging performance, output power stability, and changes in internal battery temperature. The data acquisition module transmits these data to the control module and data analysis module for real-time analysis to evaluate the performance of the battery pack.

[0060] The accelerometer is mounted on the outer surface of the battery pack body 2, preferably close to the battery's center of gravity. This allows for more accurate detection of acceleration changes caused by wave impacts. For example, it can be mounted at the center of the four sides of the battery pack and secured using a specially designed vehicle / ship test bracket 32. This ensures a tight connection between the sensor and the battery pack, reducing measurement errors caused by loose installation. To comprehensively monitor the internal temperature distribution of the battery pack, multiple temperature sensors are installed at different locations inside the battery pack, such as between battery modules and near the heat sinks. Thermally conductive adhesive or small clamps are used to fix the temperature sensors in their respective positions, enabling real-time acquisition of battery temperature data under different operating conditions. To assess the risk of overheating during battery disconnection, a current sensor, connected in series in the battery pack's output circuit, is typically installed near the interface connecting the battery pack to external circuitry. This facilitates accurate measurement of the magnitude and direction of current changes during charging and discharging, allowing for timely monitoring of the battery's charging and discharging status. A voltage sensor, connected in parallel across the positive and negative terminals of the battery pack, can be directly mounted on the battery pack's terminals and connected to a data acquisition module via insulated wires. This allows for real-time monitoring of the battery pack's output voltage, providing crucial data for evaluating battery performance. Considering signal transmission stability and interference resistance, the data acquisition module is installed close to the various sensors, such as in the equipment compartment inside a simulated test vessel, and connected to each sensor via shielded cables. This ensures the rapid and accurate acquisition of sensor data, which is then transmitted to the control and data analysis modules. The control module is typically installed in the control center of the testing equipment, such as in a dedicated control cabinet, facilitating parameter setting and equipment monitoring by operators. The control module connects to the vehicle / ship test motor 312, data acquisition module, and other equipment via wired or wireless communication to automate the entire testing process. The data analysis module is usually housed in a computer with good computing performance and data storage capabilities. This computer can be placed in the monitoring room at the testing site, interacting with the data acquisition and control modules via a network to perform real-time analysis and processing of the acquired data, generating detailed test results. The test report states that after the above installation is completed, each sensor collects real-time performance data of the battery pack, including charging and discharging performance, output power stability, and internal battery temperature changes. The data acquisition module transmits this data to the control module and data analysis module for real-time analysis to evaluate the performance of the battery pack. The data analysis module performs in-depth analysis of the collected data to determine whether there are problems such as abnormal charging and discharging or unstable output power in the battery pack. If problems are found, the causes of the problems are further analyzed, such as whether the internal structure of the battery pack is damaged due to impact. Based on the analysis results, the corresponding hybrid system components are evaluated to determine whether reprocessing or replacement is required to reduce the failure rate and recall risk during actual ship operation.

[0061] When water waves encounter the inclined baffles 328, the direction of the reflected waves will change. The equidistant inclined baffles 328 will cause the reflected waves to interfere at specific positions. The reflected waves will cancel each other out and the reflected waves will cancel out the incident waves, thereby reducing the amplitude of the water waves. The reflected waves and the incident waves may be out of phase in some areas, resulting in destructive interference, which achieves the purpose of wave elimination. In addition, the protective cover 327 prevents the water inside the test pool 1 from splashing under the action of water waves, thus improving the effectiveness of the test device.

[0062] During this process, the output shaft of the vehicle / ship test motor 312 drives the first rotating disk 313 to rotate while simultaneously driving the second synchronous pulley 410 to rotate synchronously. The rotation of the second synchronous pulley 410 drives the first synchronous pulley 48 to rotate. The diameter of the second synchronous pulley 410 is smaller than that of the first synchronous pulley 48. Therefore, under the action of the synchronous belt 49, the first synchronous pulley 48 rotates only once when the second synchronous pulley 410 rotates multiple times. When the first synchronous pulley 48 rotates, it drives the third rotating shaft 46 to rotate, which in turn drives the second rotating disk 47 to rotate. The rotation of the second rotating disk 47 drives the arc-shaped friction block 411 to rotate. With the synchronous rotation of the second rotating disk 47 and the arc-shaped friction block 411, when one end of the arc-shaped friction block 411 comes into contact with the surface of the T-shaped plate 415... As the second rotating disk 47 continues to rotate, the end of the arc-shaped friction block 411 applies a force to the T-shaped plate 415, causing the T-shaped plate 415 to slide inside the U-shaped bracket 44, i.e., the T-shaped plate 415 moves towards the rectangular plate 417. This movement compresses the spring 418, and the rotation of the arc-shaped friction block 411 causes the T-shaped plate 415 to slide upwards inside the U-shaped bracket 44 until the arc-shaped friction block 411 moves away from the surface of the T-shaped plate 415. Under the elastic potential energy of the spring 418, the T-shaped plate 415 and the surface of the U-shaped bracket 44 are tightly fitted, thus fixing the position of the T-shaped plate 415. During its upward movement, the T-shaped plate 415 is supported by the inclined support rod 41. 3. Pulling the rectangular bracket 37 to slide on the surface of the test pool 1, the rectangular bracket 37 moves, causing the two T-shaped sliders 38 to slide inside the T-shaped grooves 39 respectively, thus allowing the rectangular bracket 37 to move horizontally. The movement of the rectangular bracket 37 causes the upper connecting rod 316 and the lower connecting rod 317 to move synchronously, thus causing the second rotating shaft 324 to slide inside the second rectangular frame 322, that is, to adjust the position of the second rotating shaft 324. The different distances between the second rotating shaft 324 and the first U-shaped locking block 319 cause the second rectangular frame 322 to rotate at different angles from the first U-shaped locking block 319. As the distance between the second rotating shaft 324 and the first U-shaped locking block 319 continuously decreases, the rotation angle of the second rectangular frame 322 becomes more varied. As the enclosure increases, the range of movement of the sealing test push plate 318, pulled by the auxiliary rotating rod 321, also increases. Since the time taken for the first rotating disk 313 to rotate one revolution remains constant, and the distance the sealing test push plate 318 reciprocates within a fixed time varies, the motion frequency, amplitude, and other parameters of the sealing test push plate 318 determine the frequency and wave height of the waves inside the test pool 1. This accurately simulates waves under specific sea conditions, causing changes in the wave intensity inside the test pool 1. This is beneficial for changing the frequency and wave height of the waves inside the test pool 1 during the battery pack performance testing process. Under the action of waves, the ship model will be subjected to different degrees of impact force, which will be transmitted to the battery pack body 2 inside the simulated test ship 33.The performance changes of the battery pack body 2 under different wave impacts were observed. A vehicle / ship test motor 312 drove synchronous pulleys of different diameters, which in turn pushed a T-shaped plate 415 via an arc-shaped friction block 411. This, in turn, pulled a rectangular bracket 37 via an inclined support rod 413, adjusting the position of the second rotating shaft 324 and changing the movement range of the sealed test push plate 318. This allowed for adjustment of the wave frequency and height within the test cell, meeting the battery pack performance testing requirements under different wave conditions.

[0063] By increasing or decreasing the number of counterweight frame plates 52 fitted on the square longitudinal rod 51, the force applied to the rectangular tube sleeve 53 changes, which in turn changes the force applied by the rectangular tube sleeve 53 to the counterweight rod 34 through the connecting plate 55. This, in turn, changes the force applied to the simulated test vessel 33 through the vehicle and ship test rope 35. As the simulated test vessel 33 experiences a downward force, the draft of the simulated test vessel 33 changes. This simulates the performance changes of the battery pack body 2 under wave impact when the load on the test vessel 33 is different. Based on the different drafts of the simulated test vessel 33 and the performance changes of the battery pack body 2 under wave impact, the simulation of the realism of the hybrid common rail system operation test of the test vessel 33 is improved. By increasing or decreasing the counterweight frame plates 52 to change the tension on the simulated test vessel 33 and adjust its draft, combined with wave impact, the test vessel 33 is simulated under different load conditions to test the battery pack performance, thereby improving the realism and reliability of the test.

[0064] After the test is completed, shut down the vehicle / ship test motor 312 and related equipment, inspect and maintain the test device, clean the debris and water stains in the test pool 1, check whether the connections of each component are loose, especially the sealing performance of the sealing test push plate 318 and the test pool 1, and the lubrication of each rotating part. If a fault occurs during the test, such as unstable wave generation or abnormal battery pack data acquisition, troubleshooting is required based on the fault symptoms. For example, if the wave generation is unstable, check the operating status of the vehicle / ship test motor 312, whether the synchronous belt 49 is loose, and whether each transmission component is worn. If the battery pack data acquisition is abnormal, check whether the sensor connection is normal, whether the sensor is damaged, and whether there is a fault in the data transmission line. Repair the fault in time to ensure that the test device can operate normally next time.

[0065] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A test device for the operation of a new energy ship hybrid common rail system, comprising a test pool (1), wherein a battery pack body (2) is disposed inside the test pool (1). Its features are: The surface of the test pool (1) is provided with a simulation test assembly (3). The simulation test assembly (3) includes a sealed test push plate (318) disposed inside the test pool (1) and a simulation test vessel (33) that causes water to fluctuate inside the test pool (1) through the sealed test push plate (318), a vehicle and ship test motor (312), a first rotating disk (313), a first rectangular frame (314), a first rotating shaft (315), a lower connecting rod (317), a second rectangular frame (322), an auxiliary rotating rod (321), a rectangular support (37), and a second rotating shaft (324). A variable speed test assembly (4) is provided on one side of the test pool (1). The variable speed test assembly (4) includes a U-shaped plate (42), a U-shaped bracket (44), a side plate (45), a third rotating shaft (46), a second rotating disk (47), a first synchronous pulley (48), a synchronous belt (49), a second synchronous pulley (410), an arc-shaped friction block (411), an inclined support rod (413), a T-shaped plate (415), a rectangular plate (417), a spring (418), and a rectangular slide rod (419) for adjusting the intensity of water fluctuations inside the test pool (1). The test pool (1) is equipped with a draft adjustment assembly (5), which includes a square longitudinal bar (51), a counterweight frame plate (52), a rectangular tube sleeve (53), an internal insert rod (54), and a connecting plate (55) for adjusting the draft of the simulated test vessel (33). The upper surface of the test pool (1) is fixedly connected to a protective cover (327), and multiple inclined baffles (328) are equidistantly arranged inside the test pool (1). The two ends of the inclined baffles (328) are fixedly connected to the protective cover (327) and the test pool (1) respectively. The U-shaped bracket (44) has side plates (45) fixedly connected to both sides. A third rotating shaft (46) is inserted into the rotating holes opened inside the two side plates (45). The third rotating shaft (46) and the side plates (45) are rotatably connected. A first synchronous wheel (48) and a second rotating disk (47) are sleeved on the surface of the third rotating shaft (46). The first synchronous wheel (48) and the second rotating disk (47) are both fixedly connected to the third rotating shaft (46). An arc-shaped friction block is fixedly connected to the circumferential surface of the second rotating disk (47). 411), the first synchronous pulley (48) and the second rotating disk (47) are located between two side plates (45), the output shaft of the vehicle and ship test motor (312) is fixedly sleeved with the second synchronous pulley (410), the second synchronous pulley (410) is located between the first rotating disk (313) and the vehicle and ship test motor (312), the synchronous belt (49) is sleeved on the surface of the first synchronous pulley (48) and the second synchronous pulley (410), and the second synchronous pulley (410) is connected to the first synchronous pulley (48) through the synchronous belt (49); The test pool (1) is internally fixedly connected to an internal insert rod (54). A rectangular tube sleeve (53) is fitted on the surface of the internal insert rod (54). The rectangular tube sleeve (53) and the internal insert rod (54) are slidably connected. A square vertical rod (51) is fixedly connected to the top of the rectangular tube sleeve (53). Multiple counterweight frame plates (52) are fitted on the surface of the square vertical rod (51). The counterweight frame plates (52) and the square vertical rod (51) are slidably connected. A connecting plate (55) is fixedly connected to the surface of the rectangular tube sleeve (53). The end of the connecting plate (55) away from the rectangular tube sleeve (53) is fixedly connected to the counterweight rod (34).

2. The testing device for the operation of a new energy ship hybrid common rail system according to claim 1, characterized in that: A rectangular support (37) is provided above the test pool (1). A lower connecting rod (317) is inserted into a lower slot (326) on the bottom surface of the rectangular support (37). The lower connecting rod (317) and the rectangular support (37) are slidably connected. A second rotating shaft (324) is fixedly connected inside the lower connecting rod (317). A sealing test push plate (318) is inserted inside the test pool (1). A second U-shaped locking block (320) is fixedly connected to the surface of the sealing test push plate (318). An auxiliary rotating rod (321) is inserted inside the second U-shaped locking block (320). The auxiliary rotating rod (321) is rotatably connected to the second U-shaped locking block (320) through a pin. 1) A second rectangular frame (322) is inserted into a groove at the end away from the second U-shaped card block (320). A first U-shaped card block (319) is fitted at the end of the second rectangular frame (322) away from the auxiliary rotating rod (321). The first U-shaped card block (319) is fixedly connected to the inside of the test pool (1). The two ends of the second rectangular frame (322) are rotatably connected to the first U-shaped card block (319) and the auxiliary rotating rod (321) respectively through the second pin. The second rectangular frame (322) is located in the slot at the bottom of the lower connecting rod (317), and the second rotating shaft (324) is located inside the second rectangular frame (322). The second rotating shaft (324) is movably connected to the second rectangular frame (322).

3. The test device for the operation of a new energy ship hybrid common rail system according to claim 1, characterized in that: The top end of the lower connecting rod (317) is fixedly connected to a first rectangular frame (314), and a first rotating shaft (315) is inserted inside the first rectangular frame (314). The first rotating shaft (315) and the first rectangular frame (314) are slidably connected. The upper surface of the test pool (1) is fixedly connected to a longitudinal mounting plate (310). The surface of the longitudinal mounting plate (310) is fixedly connected to a transverse mounting plate (311). The surface of the transverse mounting plate (311) is mounted with a vehicle and ship test motor (312). The end of the output shaft of the vehicle and ship test motor (312) is fixedly connected to a first rotating disk (313). One end of the first rotating shaft (315) is fixedly connected to the first rotating disk (313). An upper connecting rod (316) is inserted into an upper slot (325) opened on the upper surface of the rectangular bracket (37). The upper connecting rod (316) and the rectangular bracket (37) are slidably connected. The bottom end of the upper connecting rod (316) is fixedly connected to the upper surface of the first rectangular frame (314).

4. The test device for the operation of a new energy ship hybrid common rail system according to claim 1, characterized in that: The test pool (1) is equipped with a simulated test vessel (33). A vehicle and ship test bracket (32) is fixedly connected inside the simulated test vessel (33). A vehicle and ship test support plate (31) is fixedly connected to the bottom surface of the simulated test vessel (33). The battery pack body (2) is inserted inside the vehicle and ship test bracket (32), and the bottom surface of the battery pack body (2) is in contact with the surface of the vehicle and ship test support plate (31). A counterweight rod (34) is provided below the simulated test vessel (33). The counterweight rod (34) is inserted into a rod groove (36) opened inside the test pool (1). The counterweight rod (34) and the test pool (1) are slidably connected. Multiple vehicle and ship test pull ropes (35) are provided between the counterweight rod (34) and the simulated test vessel (33). The two ends of the vehicle and ship test pull ropes (35) are fixedly connected to the counterweight rod (34) and the simulated test vessel (33) respectively.

5. The testing device for the operation of a new energy ship hybrid common rail system according to claim 1, characterized in that: The bottom surface of the rectangular bracket (37) is fixedly connected to two T-shaped sliders (38). The two T-shaped sliders (38) are respectively inserted into two T-shaped grooves (39) opened on one side of the test pool (1). The T-shaped sliders (38) and the test pool (1) are slidably connected.

6. The testing device for the operation of a new energy ship hybrid common rail system according to claim 1, characterized in that: The sealing test push plate (318) has two through slots on its surface, each containing a transverse limiting rod (323). One end of the transverse limiting rod (323) is fixedly connected to the test pool (1). The sealing test push plate (318) and the transverse limiting rod (323) are slidably connected. The sealing test push plate (318) and the test pool (1) are slidably connected.

7. The testing device for the operation of a new energy ship hybrid common rail system according to claim 1, characterized in that: A base plate (41) is fixedly connected to one side of the test pool (1). A U-shaped clamping plate (42) and a U-shaped bracket (44) are fixedly connected to the upper surface of the base plate (41). The U-shaped bracket (44) is located between the U-shaped clamping plate (42) and the test pool (1). A T-shaped plate (415) is inserted inside the U-shaped bracket (44). The T-shaped plate (415) and the U-shaped bracket (44) are slidably connected. A rectangular plate (417) is provided between the T-shaped plate (415) and the U-shaped clamping plate (42). A plurality of springs (418) are fixedly connected to the side of the rectangular plate (417) near the T-shaped plate (415). The end of the spring (418) away from the rectangular plate (417) is fixedly connected to the T-shaped plate (415). A rectangular sliding rod (419) is inserted into a rectangular slot (420) on one side of the T-shaped plate (415). The rectangular sliding rod (419) and the T-shaped plate (415) slide together. The rectangular slide bar (419) is fixedly connected to the rectangular plate (417) at one end. Multiple rotating rollers (43) are installed inside the U-shaped plate (42). The rotating rollers (43) and the U-shaped plate (42) are rotatably connected. The surface of the rotating rollers (43) is in contact with the surface of the rectangular plate (417). A third U-shaped block (412) is fixedly connected to the side of the T-shaped plate (415) away from the rectangular plate (417). A fourth U-shaped block (414) is fixedly connected to one side of the rectangular bracket (37). The two ends of the inclined support rod (413) are respectively inserted into the interior of the third U-shaped block (412) and the fourth U-shaped block (414). The two ends of the inclined support rod (413) are respectively rotatably connected to the interior of the third U-shaped block (412) and the fourth U-shaped block (414) through axle pins. An upper pull rod (416) is fixedly connected to the upper surface of the T-shaped plate (415).

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