A test platform for vehicle-mounted charging piles

Abstract

This invention discloses a test platform for vehicle-mounted charging piles, relating to the field of vehicle-mounted charging pile testing technology. It includes a housing mechanism comprising a box body with a rotatable cover on top and a pressure rod fixed to the inner wall of the cover, and rotatable rollers on the bottom of the box body. A testing mechanism is installed inside the box body, including a housing fixed within the box body. A detection interface, a load interface, and a display screen are respectively installed on the top of the housing, with the display screen located on one side of the detection interface and the load interface. A dustproof limiting mechanism is installed on the testing mechanism. This invention uses a dustproof limiting mechanism to prevent dust from entering the charging gun connector, and during insertion, it ensures better centering and limiting of insertion into the connector. With the cooperation of the dustproof limiting mechanism, the display screen used for human-machine interaction before and after use is protected. Furthermore, both charging guns must be inserted simultaneously to release the protection, ensuring high safety.

Description

Technical Field

[0001] This invention relates to the field of vehicle-mounted charging pile testing technology, and in particular to a testing platform for vehicle-mounted charging piles. Background Technology

[0002] On-board charging equipment refers to a device installed on an electric vehicle that uses the ground AC power grid and on-board power to charge the battery pack. It includes an on-board charger, an on-board charging generator set, and an on-board energy recovery charging device. An AC power cable with a plug is directly plugged into the charging socket of the electric vehicle to charge the battery. On-board charging pile testing requires an on-board charging pile test platform, which is a test instrument specifically used to test the performance of the on-board charger of an electric vehicle.

[0003] However, in practical applications, there are still some unresolved issues. The following are some common problems used in vehicle charging pile testing devices: In most cases, the display screen used for human-machine interaction on the vehicle charging pile testing device cannot be protected before and after use. Since the gun head needs to be manually inserted into the interface during testing, there is a risk that the gun head may be accidentally released from the hand, causing the heavy gun head to fall onto the display screen and cause damage, resulting in panel breakage or damage to internal components, affecting normal use. In addition, the cost of replacing the screen once is high. Summary of the Invention

[0004] In view of the problems existing in the current testing platforms for vehicle-mounted charging piles, the present invention is proposed.

[0005] Therefore, the problem to be solved by this invention is how to address the issue that in most cases, the display screen used for human-computer interaction on the on-board charging pile testing device cannot be protected. Since the gun head needs to be manually inserted into the interface during testing, there is a risk that the gun head may accidentally slip out of the hand during the process, causing the heavy gun head to fall onto the display screen and cause damage.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a test platform for vehicle-mounted charging piles, comprising,

[0007] The outer casing mechanism includes a box body, a box cover that rotates on the top of the box body, a pressure rod that is fixed to the inner wall of the box cover, and rollers that rotate on the bottom of the box body;

[0008] The testing mechanism is installed inside a box, including a housing fixed inside the box. A detection interface, a load interface, and a display screen are respectively installed on the top of the housing, and the display screen is located on one side of the detection interface and the load interface.

[0009] A dustproof limiting mechanism, installed on a testing mechanism, includes a drive component fixed to a detection interface and a load interface. A support plate is mounted on the drive component. A slanted frame is fixed to the top of the support plate. A plate rotatably rotates on the detection interface and the load interface. One end of the plate rotatably has a limiting plate. A sealing gasket is fixed to the bottom of the limiting plate and is located within the detection interface and the load interface.

[0010] The protective mechanism is installed on the testing mechanism and the driving component, including a transmission component installed on the driving component and the housing. A first baffle and a second baffle are respectively installed on the transmission component. A rubber strip is fixed on one side of the second baffle and contacts one side of the first baffle. An elastic element is installed on the second baffle. An arc-shaped groove is opened on one side of the second baffle and cooperates with the elastic element.

[0011] As a preferred embodiment of the on-board charging pile testing platform of the present invention, the driving component includes a square rod fixed to the detection interface and the load interface, a sliding sleeve sleeved on the surface of the square rod, a second plate rotating on the limiting plate, a first rotating rod rotating on the detection interface and the load interface, the second plate fixed to the first end surface of the first rotating rod, a first sleeve sleeved on the surface of the first rotating rod, a connecting plate fixed between the surface of the first sleeve and the surface of the sliding sleeve, and a fixing rod fixed between the surface of the limiting plate and the surface of the sliding sleeve.

[0012] As a preferred embodiment of the vehicle-mounted charging pile test platform of the present invention, wherein: a guide groove is provided on the surface of the rotating rod, a guide post is fixed on the inner wall of the sleeve and slides in the guide groove, and a spring is sleeved on the surface of the square rod, one end of which is fixedly connected to the surface of the sliding sleeve.

[0013] As a preferred embodiment of the vehicle-mounted charging pile test platform of the present invention, wherein: a reinforcing block 1 is fixed to one end of the square rod and is fixed to the top of the housing; a reinforcing block 2 is fixed to the top of the housing and is rotatably connected to one end of the rotating rod; and the end of the spring 3 away from the sliding sleeve is fixed to the surface of the reinforcing block 2.

[0014] As a preferred embodiment of the on-board charging pile test platform of the present invention, the limiting plate includes a square plate that rotates at one end of plate one and plate two, a long plate is fixed on one side of the square plate, and the long plate on one side of the square plate slides on the other side of the square plate.

[0015] As a preferred embodiment of the on-board charging pile test platform of the present invention, the transmission component includes a short block one fixed to the top of the housing, a short block two fixed to the top of the housing, a rotating rod two rotatably connected between the short block one and the short block two, a first baffle and a second baffle respectively sleeved on the surfaces of the two rotating rods two, a torsion spring fixed on both the first baffle and the second baffle, the torsion spring sleeved on the surface of the rotating rod two, and one end of the torsion spring fixed to the surface of the rotating rod two.

[0016] As a preferred embodiment of the vehicle-mounted charging pile test platform of the present invention, wherein: a sleeve is sleeved on one end surface of the rotating rod two, a guide groove is opened on the surface of the rotating rod two, a guide post two is fixed on the inner wall of the sleeve two and slides in the guide groove two, and a fixing plate is fixed between the surface of the sliding sleeve and the surface of the sleeve two.

[0017] As a preferred embodiment of the on-board charging pile test platform of the present invention, the elastic element includes a groove formed in the second baffle, a cylinder slidingly disposed on the inner wall of the groove, a ball bearing embedded at one end of the cylinder and extending to the inner wall of the arc-shaped groove, a spring sheet fixed between the inner wall of the groove and the surface of the cylinder, a positioning groove formed on the inner wall of the groove, a positioning block fixed on the surface of the cylinder and sliding within the positioning groove.

[0018] As a preferred embodiment of the on-board charging pile testing platform of the present invention, guide rods are fixed on both the detection interface and the load interface, and a support plate is sleeved on its surface. A cover is fixed on the top of the housing and sleeved on the surface of the drive component.

[0019] As a preferred embodiment of the on-board charging pile test platform of the present invention, the test mechanism further includes a controller, a control guide resistor, an energy metering module, a built-in oscilloscope module, a power supply module, a memory and a positioning module disposed within the housing, and the housing is provided with a pulse input / output interface, a communication interface, a temperature sensor and a humidity sensor.

[0020] The beneficial effects of this invention are as follows: the dustproof limiting mechanism can prevent dust from entering the gun head interface, and can better center and limit its insertion into the interface during the insertion process. With the cooperation of the dustproof limiting mechanism, the protective mechanism can protect the display screen used for human-computer interaction before and after use. The protection can only be released when both gun heads are in the inserted state at the same time, which is highly safe. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the test platform for vehicle-mounted charging piles.

[0023] Figure 2 This is a three-dimensional structural diagram of the test platform for on-board charging piles after unfolding.

[0024] Figure 3 This is a partial 3D structural diagram of the on-board charging pile test platform after it has been unfolded.

[0025] Figure 4 This is a partial three-dimensional structural diagram of a test platform for vehicle-mounted charging piles.

[0026] Figure 5 A partial sectional three-dimensional view of the structure used for testing vehicle-mounted charging piles. Figure 1 .

[0027] Figure 6 A partial sectional three-dimensional view of the structure used for testing vehicle-mounted charging piles. Figure 2 .

[0028] Figure 7 For use as a test platform for on-board charging piles Figure 6 Enlarged view of region A in the middle.

[0029] Figure 8 For use as a test platform for on-board charging piles Figure 6 Enlarged view of region B in the middle.

[0030] Figure 9 A three-dimensional sectional view of the limiting plate used in the on-board charging pile test platform.

[0031] Figure 10 This is a three-dimensional cross-sectional view of the first and second baffles used in the on-board charging pile test platform.

[0032] Figure 11 For use as a test platform for on-board charging piles Figure 10 Enlarged view of region C.

[0033] Figure 12 For use as a test platform for on-board charging piles Figure 10 Enlarged view of region D in the middle.

[0034] Figure 13 This is a partial sectional plan view of the housing and enclosure used for the on-board charging pile test platform.

[0035] Figure 14 For use as a test platform for on-board charging piles Figure 13 Enlarged view of region E in the middle.

[0036] Figure 15 For use as a test platform for on-board charging piles Figure 13 Enlarged view of the F region.

[0037] Figure 16 For use as a test platform for on-board charging piles Figure 13 Enlarged view of the G region.

[0038] Figure 17 This is a partial sectional three-dimensional structural diagram of the vertical plate used for testing vehicle-mounted charging piles.

[0039] Figure 18 This is a block diagram of the testing mechanism used in the on-board charging pile testing platform.

[0040] In the diagram: 1. Outer shell mechanism; 11. Housing; 12. Cover; 13. Pressure rod; 14. Roller; 15. Movable plate; 16. Movable block; 17. Buckle; 18. Handle; 2. Testing mechanism; 21. Housing; 22. Detection interface; 23. Load interface; 24. Display screen; 25. Controller; 26. Control guide resistor; 27. Energy metering module; 28. Built-in oscilloscope module; 29. ​​Pulse input / output interface; 210. Communication interface; 211. Power supply. Module; 212. Temperature sensor; 213. Humidity sensor; 214. Memory; 215. Positioning module; 3. Dustproof limit mechanism; 31. Driving component; 32. Support plate; 33. Slanted frame; 34. Plate 1; 35. Limiting plate; 36. Sealing gasket; 37. Guide rod; 38. Cover; 4. Protective mechanism; 41. Transmission component; 42. First baffle; 43. Second baffle; 44. Rubber strip; 45. Elastic component; 46. Arc groove; 5. Stabilizing mechanism; 51. Horizontal 51-1. Plate; 52. Trigger plate; 53. Vertical plate; 54. Slot; 55. Arc plate; 56. Rubber pad; 57. Slide groove; 58. Slider; 59. Spring 1; 510. Limiting groove; 511. Limiting block; 512. Spring 2; 31-1. Square rod; 31-2. Sliding sleeve; 31-3. Plate 2; 31-4. Rotating rod 1; 31-5. Sleeve 1; 31-6. Connecting plate; 31-7. Guide groove 1; 31-8. Guide post 1; 31-9. Spring 3; 31-10. Reinforcing Block 1; 31-11, Reinforcing Block 2; 31-12, Fixing Rod; 35-1, Square Plate; 35-2, Long Plate; 41-1, Short Block 1; 41-2, Short Block 2; 41-3, Rotating Rod 2; 41-4, Torsion Spring; 41-5, Sleeve 2; 41-6, Guide Groove 2; 41-7, Guide Post 2; 41-8, Fixing Plate; 45-1, Groove; 45-2, Cylinder; 45-3, Ball Bearing; 45-4, Spring Sheet; 45-5, Positioning Groove; 45-6, Positioning Block. Detailed Implementation

[0041] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0043] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0044] Reference Figures 1-6 This is the first embodiment of the present invention. This embodiment provides a test platform for vehicle-mounted charging piles. The test platform for vehicle-mounted charging piles includes a shell mechanism 1, a test mechanism 2, a dustproof limiting mechanism 3, and a protective mechanism 4. The dustproof limiting mechanism 3 can prevent dust from entering the gun head interface and can better center and limit its insertion into the interface during the insertion process. With the cooperation of the dustproof limiting mechanism 3, the protective mechanism 4 can protect the display screen 24 used for human-machine interaction before and after use. The protection can only be released when both gun heads are in the inserted state at the same time.

[0045] Specifically, the outer casing mechanism 1 includes a housing 11, with a lid 12 rotatably mounted on the top of the housing 11. The lid 12 is rotatably connected to the housing 11 via a hinge. A pressure rod 13 is fixed to the inner wall of the lid 12. Two pressure rods 13 are provided on the lid 12. With the pressure rods 13, after the lid 12 is attached to the housing 11, its downward pressure closes the first baffle 42 and the second baffle 43 rotating on the display screen 24. Rollers 14 are rotatably mounted on the bottom of the housing 11. Four rollers 14 are provided on the bottom of the housing 11 to facilitate movement when the device is not in use.

[0046] Specifically, the testing mechanism 2 is installed inside the housing 11, including a housing 21 fixed inside the housing 11. The top of the housing 21 is respectively equipped with a detection interface 22, a load interface 23, and a display screen 24. The display screen 24 is located on one side of the detection interface 22 and the load interface 23. The testing mechanism 2 can perform tests on the vehicle charging pile. This is existing technology. The working principle of this part is also existing technology, which can be clearly understood by those skilled in the art, and will not be described in detail here. The detection interface 22 is used to connect to the charging gun on the charging pile, the load interface 23 is used to connect to the gun head on the load, and the display screen 24 is a touch screen to realize human-computer interaction function.

[0047] Specifically, the dustproof limiting mechanism 3 is installed on the testing mechanism 2, including a drive component 31 fixed on the detection interface 22 and the load interface 23. A support plate 32 is installed on the drive component 31. A slanted frame 33 is fixed on the top of the support plate 32. A plate 34 rotates on the detection interface 22 and the load interface 23. One end of the plate 34 rotates to a limiting plate 35. A sealing gasket 36 is fixed at the bottom of the limiting plate 35 and is located inside the detection interface 22 and the load interface 23.

[0048] Two drive components 31, a support plate 32, a slanted frame 33, a limiting plate 35, and a sealing gasket 36 are respectively provided on a detection interface 22 and a load interface 23. The two slanted frames 33 are respectively fixed to the top of the two support plates 32. By setting the slanted frames 33, when the gun head is pressed down and placed on them, the slanted surfaces inside are squeezed, causing the two slanted frames 33 and the support plates 32 to separate, thereby acting on the drive components 31. With the cooperation of the plate 34, the two limiting plates 35 are rotated and separated, thereby separating the sealing gasket 36 in the detection interface 22 and the load interface 23.

[0049] The reaction force of the driving component 31 acts on the support plate 32 and the inclined frame 33, applying force to the gun head located between them, so that it can be better inserted into the interface in a centered position. The unfolded limiting plate 35 can limit the vertical surfaces on both sides of the gun head, so that the gun head can be inserted into the interface more accurately.

[0050] With the sealing gasket 36 in place, after the two limiting plates 35 are rotated and placed on the interface, they are located inside the interface to prevent dust from entering the detection interface 22 and the load interface 23. The support plate 32 and the inclined frame 33 have an arc surface on one side. With this setting, after the gun head is pressed down and unfolded, the support plate 32 and the inclined frame 33 on both sides of the gun head can better contact and limit the gun head, thus achieving initial positioning.

[0051] Specifically, the protective mechanism 4 is installed on the testing mechanism 2 and the driving component 31, including the transmission component 41 installed on the driving component 31 and the housing 21. Through the setting of the transmission component 41, the driving component 31 can apply force to the first baffle 42 and the second baffle 43 when it is running, giving them a rotational tendency force. The first baffle 42 and the second baffle 43 are respectively installed on the transmission component 41. A rubber strip 44 is fixed on one side of the second baffle 43 and contacts one side of the first baffle 42. Through the setting of the rubber strip 44, it can be deformed and compressed, and there is a certain space when the first baffle 42 and the second baffle 43 rotate to close and unfold, so as to smoothly realize the opening and closing operation. An elastic element 45 is installed on the second baffle 43, and an arc groove 46 is opened on one side of the second baffle 43, which cooperates with the elastic element 45.

[0052] A rubber ring is fixed to the top of the housing 21 and is located around the display screen 24. By setting the first baffle 42 and the second baffle 43, when they are closed and in contact with the rubber ring, they play a role in preventing dust from the display screen 24 and also play a protective role, preventing the display screen 24 from being damaged by accidental drop during the insertion process. When rotating and closing, the rubber ring plays a buffering and protective role, and will not cause damage to the display screen 24.

[0053] With the elastic element 45 and the arc groove 46, inserting either the first baffle 42 or the second baffle 43 into the detection interface 22 and the load interface 23 on both sides will not open the first baffle 42 and the second baffle 43. Only when both the first and second baffles 42 and the second baffle 43 are inserted can they be unlocked and opened, thus preventing the first baffle from damaging the display screen 24. This enhances safety. Furthermore, when the first baffle 42 and the second baffle 43 are removed, they will close, further improving the safety of protection. Example 2

[0054] Reference Figures 2-9 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0055] Specifically, the driving component 31 includes a square rod 31-1 fixed to the detection interface 22 and the load interface 23. A sliding sleeve 31-2 is fitted on the surface of the square rod 31-1. A second plate 31-3 rotates on the limiting plate 35. A rotating rod 31-4 rotates on the detection interface 22 and the load interface 23. The second plate 31-3 is fixed to one end of the rotating rod 31-4. The sliding sleeve 31-2 is slidably fitted on the surface of the square rod 31-1. The rotating rod 31-4 is rotatably connected to the surfaces of the detection interface 22 and the load interface 23 through a bearing. The second plate 31-3 is fitted on the surface of the rotating rod 31-4. The first plate 31-4 and the second plate 31-3 are arranged parallel to each other and have the same length. A sleeve 31-5 is fitted on the surface of the rotating rod 31-4. A connecting plate 31-6 is fixed between the surface of the sleeve 31-5 and the surface of the sliding sleeve 31-2. A fixing rod 31-12 is fixed between the surface of the limiting plate 35 and the surface of the sliding sleeve 31-2.

[0056] With the arrangement of plate 34 and plate 31-3, when the rotating rod 31-4 rotates plate 31-3, and with the cooperation of plate 34, the two sets of limiting plates 35 can always be horizontally rotated and opened. This allows the sealing gaskets 36 at the bottom of the two limiting plates 35 located in the interface to be removed and separated, so that the gun head can be smoothly inserted into the interface. The connecting plate 31-6 indirectly connects the sliding sleeve 31-2 and the sleeve 31-5, so that when the sliding sleeve 31-2 moves, it can drive the sleeve 31-5 to move. With the arrangement of the fixing rod 31-12, the support plate 32 is indirectly connected to the sliding sleeve 31-2, so that when the support plate 32 moves, it can drive the sliding sleeve 31-2 to move.

[0057] The rotating rod 31-4 has a guide groove 31-7 on its surface. The inner wall of the sleeve 31-5 is fixed with a guide post 31-8, which slides in the guide groove 31-7. The guide groove 31-7 is divided into three parts. The first and third parts are such that when the guide post 31-8 moves with the sleeve 31-5, the rotating rod 31-4 will not rotate. The second part is such that when the guide post 31-8 moves with the sleeve 31-5, the rotating rod 31-4 can rotate.

[0058] During the insertion of the gun head into the interface, the inclined frame 33 is squeezed to move it and the support plate 32, which in turn drives the fixed rod 31-12 and the sliding sleeve 31-2 to move, thereby causing the sleeve 31-5 and the guide post 31-8 to move from the first part of the guide groove 31-7 through the second part to the third part, causing the rotating rod 31-4 to rotate, which in turn causes the plate 31-3 to rotate. With the cooperation of the plate 34, the two sets of limiting plates 35 are horizontally rotated and opened.

[0059] A spring 31-9 is fitted on the surface of the square rod 31-1, one end of which is fixedly connected to the surface of the sliding sleeve 31-2. The spring 31-9 is compressed when the sliding sleeve 31-2 moves, providing a force for its reset. At the same time, the sliding sleeve 31-2 and the fixed rod 31-12 act on the inclined frame 33 and the support plate 32 to apply force to the gun head, so that it can be better centered and inserted into the interface.

[0060] One end of the square rod 31-1 is fixed with a reinforcing block 31-10, which is fixed to the top of the housing 21. The reinforcing block 31-10 provides reinforcement and support to one end of the square rod 31-1, preventing it from being suspended and unstable. The rotating rod 31-4 is rotatably connected to the reinforcing block 31-11 via a bearing. The top of the housing 21 is fixed with the reinforcing block 31-11, which is rotatably connected to one end of the rotating rod 31-4. The end of the spring 31-9 away from the sliding sleeve 31-2 is fixed to the surface of the reinforcing block 31-11. The reinforcing block 31-11 supports the rotating rod 31-4, preventing it from being suspended and making it more stable when rotating.

[0061] The limiting plate 35 includes a square plate 35-1 that rotates at one end of plate 1 34 and plate 2 31-3. A long plate 35-2 is fixed to one side of the square plate 35-1. The long plate 35-2 on one side of the square plate 35-1 slides onto the square plate 35-1 on the other side. The square plate 35-1 and the long plate 35-2 are designed as an integral unit to form a complete limiting plate 35. The two square plates 35-1 have corresponding square holes for the long plates 35-2, and the long plates 35-2 are slidably connected inside them. With this setting, after the two limiting plates 35 are unfolded, the long plate 35-2 on one limiting plate 35 is still located in the square hole on the other limiting plate 35, and can still maintain its function, improving the stability and strength. The two long plates 35-2 can limit the vertical surfaces on both sides of the gun head, so that the gun head can be inserted into the interface more accurately. Example 3

[0062] Reference Figures 2 to 12 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0063] Specifically, the transmission component 41 includes a short block 41-1 fixed to the top of the housing 21, a short block 41-2 fixed to the top of the housing 21, and a rotating rod 41-3 rotatably connected between the short blocks 41-1 and 41-2. The rotating rod 41-3 is rotatably connected to the short blocks 41-1 and 41-2 respectively through bearings. A first baffle 42 and a second baffle 43 are respectively sleeved on the surfaces of the two rotating rods 41-3. A torsion spring 41-4 is fixed on both the first baffle 42 and the second baffle 43. The torsion spring 41-4 is sleeved on the surface of the rotating rod 41-3, and one end of the spring is fixed to the surface of the rotating rod 41-3.

[0064] With the torsion spring 41-4 in place, it deforms when the rotating rod 41-3 rotates. With the cooperation of the elastic element 45 and the arc groove 46, when a gun head is inserted and the torsion spring 41-4 on one side of the rotating rod 31-4 deforms, it applies a force to the first baffle 42 or the second baffle 43 with a rotational tendency. At this time, it is impossible to overcome the effect of the elastic element 45 and the arc groove 46 on the first baffle 42 and the second baffle 43, and the first baffle 42 and the second baffle 43 cannot be opened. Only when both gun heads are inserted at the same time can the effect of the elastic element 45 and the arc groove 46 on the first baffle 42 and the second baffle 43 be overcome, and opening can be achieved, which is highly safe.

[0065] A sleeve 41-5 is fitted onto one end of the rotating rod 41-3. A guide groove 41-6 is formed on the surface of the rotating rod 41-3. A guide post 41-7 is fixed to the inner wall of the sleeve 41-5 and slides within the guide groove 41-6. The sleeve 41-5 is slidably fitted onto the surface of the rotating rod 41-3. The guide groove 41-6 is divided into three parts. The first and third parts are such that when the guide post 41-7 moves within the sleeve 41-5, the rotating rod 41-3 will not rotate. The second part is such that when the guide post 41-7 moves within the sleeve 41-5, the rotating rod 41-3 can rotate.

[0066] A fixing plate 41-8 is fixed between the surface of the sliding sleeve 31-2 and the surface of the second sleeve 41-5. The fixing plate 41-8 indirectly connects the sliding sleeve 31-2 and the second sleeve 41-5. When the sliding sleeve 31-2 moves and drives the fixing plate 41-8 to move the second sleeve 41-5 on the second rotating rod 41-3, the second guide post 41-7 moves from the first part of the second guide groove 41-6 through the second part to the third part, thereby causing the second rotating rod 41-3 to rotate and causing the torsion spring 41-4 to undergo torsional deformation.

[0067] The elastic element 45 includes a groove 45-1 formed in the second baffle 43, a cylinder 45-2 slidingly disposed on the inner wall of the groove 45-1, a ball 45-3 embedded at one end of the cylinder 45-2 and extending to the inner wall of the arc groove 46, the ball 45-3 being rotatably connected to the cylinder 45-2, a spring piece 45-4 being fixed between the inner wall of the groove 45-1 and the surface of the cylinder 45-2, a positioning groove 45-5 being formed in the inner wall of the groove 45-1, a positioning block 45-6 being fixed on the surface of the cylinder 45-2 and sliding within the positioning groove 45-5.

[0068] The spring 45-4 provides elastic force to the ball 45-3 on the cylinder 45-2, which is placed in the arc groove 46. This force acts between them, causing the second baffle 43 to act on the first baffle 42. This prevents the two baffles from opening easily. When either gun head is inserted and the torsion spring 41-4 on one side is deformed, the ball 45-3 cannot be dislodged from the arc groove 46, and the first baffle 42 and the second baffle 43 will not open. Only when both gun heads are inserted and the torsion springs 41-4 on both sides are deformed can the opening of the first baffle 42 and the second baffle 43 be prevented.

[0069] Guide rods 37 are fixed on both the detection interface 22 and the load interface 23, and a support plate 32 is sleeved on their surfaces. A cover 38 is fixed on the top of the housing 21 and sleeved on the surface of the drive component 31. Two guide rods 37 are provided on each detection interface 22 and the load interface 23, and the support plate 32 is slidably sleeved on its surface. The guide rods 37 guide and limit the support plate 32, and the cover 38 provides shielding and protection for the corresponding structures. Example 4

[0070] Reference Figures 2 to 18 This is the fourth embodiment of the present invention, which is based on the first three embodiments.

[0071] Specifically, the testing mechanism 2 also includes a controller 25, a control guide resistor 26, an energy metering module 27, a built-in oscilloscope module 28, a power supply module 211, a memory 214, and a positioning module 215, all housed within the housing 21. The housing 21 is equipped with a pulse input / output interface 29, a communication interface 210, a temperature sensor 212, and a humidity sensor 213.

[0072] The control guide resistor 26 is electrically connected to the detection interface 22 and the power metering module 27 respectively. The controller 25 is electrically connected to the display screen 24, the power module 211, the temperature sensor 212, the humidity sensor 213, the memory 214, the positioning module 215, the communication interface 210, and the pulse input / output interface 29 respectively. The built-in oscilloscope module 28 is electrically connected to the controller 25, the power metering module 27, and the load interface 23 respectively. The detection interface 22 is electrically connected to the charging pile, the load interface 23 is electrically connected to the load, and the communication interface 210 is electrically connected to the host computer. This is prior art, and the working principle of this part is also prior art, which can be clearly understood by those skilled in the art, and will not be described in detail here.

[0073] A movable plate 15 rotates on the lid 12, and a movable block 16 slides on the body 11. One end of the movable plate 15 is rotatably connected to the top of the movable block 16. A buckle 17 is provided between the body 11 and the lid 12. A handle 18 is fixed on the outer surface of the body 11. The movable block 16 and the movable plate 15 can limit the opening of the lid 12 to prevent it from opening or closing excessively. The buckle 17 facilitates the connection between the closed lid 12 and the body 11 to prevent it from opening arbitrarily.

[0074] A stabilizing mechanism 5 is installed on the housing 11 and the shell 21, including a horizontal plate 51 fixed to the top of the shell 21. A trigger plate 52 slides inside the horizontal plate 51. One end of the trigger plate 52 extends into the detection interface 22 and the load interface 23, and the other end extends into the housing 11. A vertical plate 53 slides inside the housing 11. A slot 54 is provided on the vertical plate 53 and cooperates with one end of its trigger plate 52. An arc plate 55 is fixed to the lower end of the vertical plate 53, and a rubber pad 56 is fixed to the bottom of the arc plate 55.

[0075] With the stabilizing mechanism 5 in place, when the cover 12 is opened, the movable block 16 acts on it to initially fix the roller 14, and then fix it again after the gun head is inserted. Both ends of the trigger plate 52 are provided with inclined surfaces. The inclined surface located in the detection interface 22 and the load interface 23 is squeezed when the gun head is inserted into the interface, thereby making it move.

[0076] Both the upper end of the vertical plate 53 and one side of the movable block 16 are provided with inclined surfaces. When the box cover 12 is opened, the movable plate 15 drives the movable block 16 to move, thereby pressing and squeezing the vertical plate 53 downward. This causes the vertical plate 53 to drive the arc plate 55 and the rubber pad 56 on it to move downward, so that the rubber pad 56 contacts the roller 14, achieving initial fixation.

[0077] An inclined surface is provided inside the slot 54. After the vertical plate 53 moves down a short distance, there is still a certain space between the upper surface of the trigger plate 52 and the upper surface of the slot 54. After the trigger plate 52 moves and the inclined surface on it comes into contact with the inclined surface inside the slot 54, it is squeezed to make the vertical plate 53 and the arc plate 55 continue to move down, so that the rubber pad 56 is compressed, increasing the interaction with the roller 14 and playing a secondary fixing role to prevent the device from moving during use.

[0078] A sliding groove 57 is provided in the horizontal plate 51. A slider 58 is fixed at the bottom of the trigger plate 52 and slides in the sliding groove 57. A spring 59 is fixed between the surface of the slider 58 and the inner wall of the sliding groove 57. A limit groove 510 is provided in the housing 11. A limit block 511 is fixed on one side of the vertical plate 53 and slides in the limit groove 510. A spring 512 is fixed between the surface of the limit block 511 and the inner wall of the limit groove 510.

[0079] The trigger plate 52 is guided and limited by the slide groove 57 and the slider 58. The spring 59 is compressed after the trigger plate 52 and the slider 58 move, providing a force for the reset of the trigger plate 52 and the slider 58. The vertical plate 53 is guided and limited by the limiting groove 510 and the limiting block 511. The spring 512 is compressed after the vertical plate 53 and the limiting block 511 move, providing a force for the reset of the vertical plate 53 and the limiting block 511.

[0080] In use, the gun head is pressed down onto the inclined frame 33, squeezing the inclined surface inside, causing the two inclined frames 33 and the support plate 32 to separate. This then acts on the driving component 31, and with the cooperation of the plate 34, the two limiting plates 35 rotate and separate, thereby separating the sealing gasket 36 in the detection interface 22 and the load interface 23. The reaction force of the driving component 31 acts on the support plate 32 and the inclined frame 33, applying force to the gun head located between them, so that it can be better inserted into the interface in a centered position. Furthermore, the unfolded limiting plates 35 can limit the vertical surfaces on both sides of the gun head, allowing the gun head to be inserted into the interface more accurately.

[0081] The driving component 31 acts on the transmission component 41, causing the rotating rod 41-3 on it to rotate and the torsion spring 41-4 to deform. With the cooperation of the elastic component 45 and the arc groove 46, when a gun head is inserted and the torsion spring 41-4 on one side of the rotating rod 41-4 is deformed, a force with a rotational tendency is applied to the first baffle 42 or the second baffle 43. At this time, the action between the elastic component 45 and the arc groove 46 on the first baffle 42 and the second baffle 43 cannot be overcome, and the first baffle 42 and the second baffle 43 cannot be opened. Only when both gun heads are inserted and act simultaneously can the action between the elastic component 45 and the arc groove 46 on the first baffle 42 and the second baffle 43 be overcome, and opening can be achieved. The safety is high. Then, the corresponding test is carried out through the testing mechanism 2.

[0082] In summary, the dustproof limiting mechanism 3 can prevent dust from entering the gun head interface. Compared with the prior art, it can better center and limit the insertion into the interface during the insertion process. With the cooperation of the dustproof limiting mechanism 3, the protective mechanism 4 can protect the display screen 24 used for human-computer interaction before and after use. Compared with the prior art, both gun heads need to be in the inserted state at the same time to release the protection, which is safer.

[0083] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A testing platform for vehicle-mounted charging piles, characterized in that: Including, The shell mechanism (1) comprises a box body (11), a box cover (12) is rotatably arranged on the top of the box body (11), a pressing rod (13) is fixedly arranged on the inner wall of the box cover (12), and a rolling wheel (14) is rotatably arranged on the bottom of the box body (11); The test mechanism (2) is installed in the box body (11) and comprises a shell (21) fixedly arranged in the box body (11), a detection interface (22), a load interface (23) and a display screen (24) are arranged on the top of the shell (21) respectively, and the display screen (24) is located on the side of the detection interface (22) and the load interface (23); The dustproof limiting mechanism (3) is installed on the test mechanism (2) and comprises a driving piece (31) fixedly arranged on the detection interface (22) and the load interface (23), a supporting plate (32) is arranged on the driving piece (31), an inclined frame (33) is fixedly arranged on the top of the supporting plate (32), a plate one (34) is rotatably arranged on the detection interface (22) and the load interface (23), a limiting plate (35) is rotatably arranged at one end of the plate one (34), a sealing gasket (36) is fixedly arranged on the bottom of the limiting plate (35) and located in the detection interface (22) and the load interface (23), two driving pieces (31), supporting plates (32), inclined frames (33), limiting plates (35) and sealing gaskets (36) are arranged on one detection interface (22) and load interface (23) respectively, and two inclined frames (33) are fixedly arranged on the top of the two supporting plates (32); and The protection mechanism (4) is installed on the test mechanism (2) and the driving piece (31) and comprises a transmission piece (41) arranged on the driving piece (31) and the shell (21), a first baffle (42) and a second baffle (43) are arranged on the transmission piece (41) respectively, a rubber strip (44) is fixedly arranged on the side of the second baffle (43) and in contact with the side of the first baffle (42), an elastic piece (45) is arranged on the second baffle (43), and an arc-shaped groove (46) is arranged on the side of the second baffle (43) and matched with the elastic piece (45).

2. The platform for testing of an on-board charging station as claimed in claim 1, wherein: The driving piece (31) comprises a square rod (31-1) fixedly arranged on the detection interface (22) and the load interface (23), a sliding sleeve (31-2) is arranged on the surface of the square rod (31-1), a plate two (31-3) is rotatably arranged on the limiting plate (35), a rotating rod one (31-4) is rotatably arranged on the detection interface (22) and the load interface (23), the plate two (31-3) is fixedly arranged on the surface of one end of the rotating rod one (31-4), a sleeve one (31-5) is arranged on the surface of the rotating rod one (31-4), a connecting plate (31-6) is fixedly arranged between the surface of the sleeve one (31-5) and the surface of the sliding sleeve (31-2), and a fixing rod (31-12) is fixedly arranged between the surface of the limiting plate (35) and the surface of the sliding sleeve (31-2).

3. The platform for testing of an on-board charging station as claimed in claim 2, wherein: The surface of the rotating rod one (31-4) is provided with a guide groove one (31-7), the inner wall of the sleeve one (31-5) is fixedly provided with a guide post one (31-8), and the guide post one (31-8) slides in the guide groove one (31-7); the surface of the square rod (31-1) is sleeved with a spring three (31-9), and one end of the spring three (31-9) is fixedly connected with the surface of the sliding sleeve (31-2).

4. The platform for testing of an on-board charging station as claimed in claim 3, wherein: The square rod (31-1) is fixedly provided with a reinforcing block one (31-10) at one end, and the reinforcing block one (31-10) is fixed to the top of the shell (21); the top of the shell (21) is fixedly provided with a reinforcing block two (31-11), and the reinforcing block two (31-11) is rotatably connected with one end of the rotating rod one (31-4); the end, away from the sliding sleeve (31-2), of the spring three (31-9) is fixedly connected with the surface of the reinforcing block two (31-11).

5. The platform for testing of on-board charging piles as claimed in claim 2, wherein: The limiting plate (35) comprises a square plate (35-1) rotatably connected with one end of the plate one (34) and the plate two (31-3); one side of the square plate (35-1) is fixedly provided with a long plate (35-2); the long plate (35-2) on one side of the square plate (35-1) slides on the square plate (35-1) on the other side.

6. The platform for testing of on-board charging piles as claimed in claim 2, wherein: The transmission member (41) comprises a short block one (41-1) fixedly connected with the top of the shell (21); the top of the shell (21) is fixedly provided with a short block two (41-2); the short block one (41-1) and the short block two (41-2) are rotatably provided with a rotating rod two (41-3) therebetween; the first baffle (42) and the second baffle (43) are sleeved with the surfaces of two rotating rod two (41-3) respectively; the first baffle (42) and the second baffle (43) are fixedly provided with a torsional spring (41-4) respectively; the torsional spring (41-4) is sleeved with the surface of the rotating rod two (41-3), and one end of the torsional spring (41-4) is fixedly connected with the surface of the rotating rod two (41-3).

7. The platform for testing of on-board charging piles as claimed in claim 6, wherein: The surface of one end of the rotating rod two (41-3) is sleeved with a sleeve two (41-5); the surface of the rotating rod two (41-3) is provided with a guide groove two (41-6); the inner wall of the sleeve two (41-5) is fixedly provided with a guide post two (41-7), and the guide post two (41-7) slides in the guide groove two (41-6); the surface of the sliding sleeve (31-2) and the surface of the sleeve two (41-5) are fixedly provided with a fixed plate (41-8) therebetween.

8. The platform for testing of an on-board charging station as claimed in claim 1, wherein: The elastic member (45) comprises a groove (45-1) formed in the second baffle (43); the inner wall of the groove (45-1) is slidably provided with a cylinder (45-2); one end of the cylinder (45-2) is embedded with a ball (45-3), and the ball (45-3) extends to the inner wall of the arc-shaped groove (46); the inner wall of the groove (45-1) and the surface of the cylinder (45-2) are fixedly provided with an elastic sheet (45-4) therebetween; the inner wall of the groove (45-1) is provided with a positioning groove (45-5); the surface of the cylinder (45-2) is fixedly provided with a positioning block (45-6), and the positioning block (45-6) slides in the positioning groove (45-5).

9. The platform for testing of an on-board charging station as claimed in claim 1, wherein: The detection interface (22) and the load interface (23) are fixedly provided with a guide rod (37) respectively, and the support plate (32) is sleeved with the surfaces of the guide rods (37); the top of the shell (21) is fixedly provided with a cover body (38), and the cover body (38) is sleeved with the surface of the driving member (31).

10. The platform for testing of an on-board charging station as claimed in claim 1, wherein: The test mechanism (2) further comprises a controller (25), a control guide resistance (26), an electric energy metering module (27), an internal oscilloscope module (28), a power module (211), a memory (214) and a positioning module (215) arranged in a housing (21), and the housing (21) is provided with a pulse input / output interface (29), a communication interface (210), a temperature sensor (212) and a humidity sensor (213).

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