A socket box for testing electric system of new energy vehicles and its use method

Abstract

The present invention discloses a socket box for testing the electric system of a new energy vehicle and a method of use, comprising a base plate, an outer shell, a top plate, a floating panel assembly, a floating spring, connecting screws, a locking ball ring, a socket core assembly, a device connection plug, an electrical control connector, and a speed regulating valve. The base plate is installed on the testing equipment, and the device connection plug is installed at the lower rear portion. The base plate is fixedly connected to the outer shell on all sides, and the outer shell is fixedly connected to the top plate. An electrical control connector and a speed regulating valve are installed on one side of the outer shell. The bottom surface of the floating panel assembly contacts the floating spring, and the floating spring contacts the top plate. The connecting screw passes through the locking ball ring, the through hole on the top plate, and the floating spring from bottom to top and is connected to the lower part of the floating panel assembly. One end of the socket core assembly is fixed to the lower part of the floating panel assembly, and the other end is driven by a cylinder to move up and down relative to the floating panel assembly. The socket core assembly can also move horizontally following the floating panel assembly through the fixed end.

Description

Technical Field

[0001] The present invention belongs to the technical field of assembly and testing of electric systems of new energy vehicles, and in particular relates to a socket box for testing electric systems of new energy vehicles and a method of using the socket box. Background Art

[0002] During the assembly and testing of new energy vehicle electric systems, plugging in the electric system's electrical connector is a critical step. Traditionally, this has been achieved by manually docking test harnesses or by designing an external docking mechanism. Manual docking lacks automated docking, increasing labor costs. External docking mechanisms employ simple pneumatic or electric push mechanisms, resulting in poor floating performance between the plug and socket. Summary of the Invention

[0003] The purpose of the invention is to provide a socket box for testing the electric system of new energy vehicles and a method of use.

[0004] In order to achieve the above-mentioned objectives, the invention adopts the following technical solutions: a socket box for testing the electric system of new energy vehicles and a method of use, comprising a base plate, an outer shell, a top plate, a floating panel assembly, a floating spring, a connecting screw, a locking ball ring, a socket core assembly, an equipment connection plug, an electrical control connector and a speed regulating valve, wherein the base plate is fixedly installed on a test device for testing the electric system of new energy vehicles, the base plate is fixedly connected to the lower part of the outer shell on all sides, the upper part of the outer shell is fixedly connected to the top plate, a device connection plug is fixedly installed on the lower rear part of the base plate, an electrical control connector and a speed regulating valve are provided on one side of the top plate, the electrical control connector and the speed regulating valve are fixedly installed on one side of the outer shell, and the electrical control connector is located above the speed regulating valve; the bottom surface of the floating panel assembly contacts one end of the floating spring, and the other end of the floating spring contacts the upper part of the top plate, the connecting screw passes through the locking ball ring, the through hole opened on the top plate, and the floating spring from bottom to top and is connected to the lower part of the floating panel assembly; one end of the socket core assembly is fixedly installed on the lower part of the floating panel assembly.

[0005] Preferably, the floating panel assembly includes a socket panel, a panel connecting column, a limit locking plate, a hinge connecting rod, a spherical protrusion and a plug protective cover. The plug protective cover is fixedly installed on the upper surface of the socket panel, and the upper part of the panel connecting column is fixedly connected to the lower surface of the socket panel. The lower part of the panel connecting column is fixedly connected to the upper surface of the limit locking plate. A spherical protrusion is installed on the lower surface of the limit locking plate. One end of the limit locking plate is connected to one end of the hinge connecting rod through a rotating pin.

[0006] Preferably, the socket core assembly includes a socket core, a socket core connecting column, a socket core connecting plate, a driving rod, a driving cylinder, a cylinder connecting rod and a cylinder seat. The lower part of the socket core is fixedly connected to the upper end of the socket core connecting column, the lower end of the socket core connecting column is fixedly connected to the socket core connecting plate, the middle part of the socket core connecting plate is connected to one end of the driving rod, the other end of the driving rod is connected to one end of the cylinder connecting rod through a rotating pin, the middle part of the driving rod is connected to the other end of the hinge connecting rod through a rotating pin, the other end of the cylinder connecting rod is fixedly connected to the cylinder rod of the driving cylinder, the cylinder body of the driving cylinder is fixedly connected to the cylinder seat, and the cylinder seat is fixedly installed on the lower surface of the socket panel.

[0007] Preferably, the socket core includes a core body, a plug guide sleeve, a probe and a temperature sensor. The lower part of the core body is connected to the socket core connecting column of the socket core assembly. The plug guide sleeve is fixedly installed on the upper part of the core body. The probes are set in three. The three probes pass through the core body from bottom to top and are fixed on the core body, corresponding to the electric plug of the new energy vehicle electric system. The core body is installed with a temperature sensor behind the lower part of the plug guide sleeve installation position. There are three temperature sensors. The installation spacing of the three temperature sensors corresponds to the installation spacing of the probes. The rear end of the probe is connected to the equipment connection plug through a wiring harness.

[0008] Preferably, the component for driving the socket core assembly to move up and down relative to the floating panel assembly includes but is not limited to using a cylinder.

[0009] Preferably, the plug protective cover, the core body and the plug guide sleeve are all made of insulating materials.

[0010] Preferably, the probe is configured as a roller probe.

[0011] Preferably, a speed regulating valve is provided at the air inlet and outlet of the driving cylinder, and the driving cylinder is fixedly mounted on the lower part of the socket panel through a cylinder seat.

[0012] A method for using a socket box, the method comprising the following steps:

[0013] When an electric plug is inserted into the floating panel assembly, the electric plug contacts the floating panel assembly. Under the external force of the electric plug, the socket panel of the floating panel assembly moves downward, compressing the floating spring, driving the connecting screw to move downward, so that there is no longer a tensioning force between the lower end of the connecting screw and the locking ball ring. The locking ball ring moves downward with the connecting screw due to gravity, so that the spherical surface of the locking ball is separated from the groove surface of the top plate, creating a gap. The entire floating panel assembly floats horizontally within the range of the gap.

[0014] After the electric plug is inserted into the plug protective cover, the driving cylinder of the socket core assembly extends, and the driving connecting rod is driven by the cylinder connecting rod to rotate around the corresponding rotating pin, driving the socket core connecting plate to move upward, driving the socket core to move upward, so that the plug guide sleeve and the probe on the socket core can contact the pins of the electric plug.

[0015] Preferably, a flange is provided on the upper part of the shell, and the lower surface of the flange limits the upper surface of the socket panel of the floating panel assembly. There is a certain gap between the lower surface of the socket panel and the upper surface of the top plate under the action of the floating spring, so that the floating panel assembly floats up and down, and a certain gap is also provided between the lower surface of the spherical protrusion and the upper surface of the bottom plate, and the gap is smaller than the gap between the lower surface of the socket panel and the upper surface of the top plate. When the floating panel assembly is pressed down by the plugging force of the electric plug, the spherical protrusion first contacts the upper surface of the top plate, providing a supporting reaction force to prevent the floating panel assembly from being further pressed down, thereby ensuring that there is still a gap between the socket panel and the top plate of the floating panel assembly.

[0016] Compared with the prior art, the beneficial effects of the invention are:

[0017] 1. The present invention realizes dual floating of the socket panel and the socket core. When the electric plug is plugged in, the socket panel floats first to ensure that the electric plug enters the plug protection cover, and then the driving cylinder drives the socket core to float and plug the pins of the electric plug. This solution eliminates the need for very accurate positioning accuracy between the electric plug and the socket box during automated testing, ensuring stable and efficient automated plugging.

[0018] 2. The present invention effectively ensures the smoothness of the plugging process through the arrangement of roller-type probes, plug guide sleeves, temperature sensors, etc., effectively avoids the occurrence of plug overheating and arc discharge and sparking, and extends the service life of the socket box.

[0019] 3. The present invention has the function of re-locking the floating panel assembly under the action of the floating spring when the plug-in ends and the test begins, thereby ensuring that the electric plug does not move arbitrarily during the test and ensuring the stability of the test.

[0020] 4. The present invention has a simple structure, high integration, small footprint, and is easy to install. It can achieve compatibility testing of different new energy vehicle electric drive products by quickly replacing the device connection plug and socket core. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide further understanding of the invention and constitute a part of the specification. They are used to explain the invention together with the embodiments of the invention and do not constitute a limitation of the invention.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the floating panel assembly and the socket core assembly of the present invention;

[0024] Figure 3 It is a cross-sectional schematic diagram of the socket core of the present invention;

[0025] Figure 4 This is a schematic structural diagram of the socket core assembly probe of the present invention;

[0026] Figure 5 A detailed schematic diagram of the connecting rod structure of the socket core assembly of the present invention;

[0027] Figure 6 Schematic diagram of the electric plug during testing of the electric system of a new energy vehicle according to the present invention.

[0028] In the figure: 1. Base plate, 2. Shell, 3. Top plate, 4. Floating panel assembly, 5. Floating spring, 6. Connecting screw, 7. Locking ball ring, 8. Socket core assembly, 9. Equipment connection plug, 10. Electrical control connector, 11. Speed ​​regulating valve, 401. Socket panel, 402. Panel connecting column, 403. Limit locking plate, 404. Hinge connecting rod, 405. Spherical bump, 406. Plug protective cover, 801. Socket core, 802. Socket core connecting column, 803. Socket core connecting plate, 804. Drive connecting rod, 805. Drive cylinder, 806 Cylinder connecting rod, 807. Cylinder seat, 8011. Core body, 8012. Plug guide sleeve, 8013. Probe, 8014. Temperature sensor, 100. Electric plug. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the invention will be described clearly and completely below with reference to the drawings in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all the embodiments.

[0030] In the description of the invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the invention.

[0031] Reference Figure 1-Figure 5, a technical solution proposed in the invention: a socket box for testing the electric system of new energy vehicles and a method of use, comprising a bottom plate 1, a shell 2, a top plate 3, a floating panel assembly 4, a floating spring 5, a connecting screw 6, a locking ball ring 7, a socket core assembly 8, a device connection plug 9, an electrical control connector 10, and a speed regulating valve 11. The bottom plate 1 is installed on the test equipment for testing the electric system of new energy vehicles by screws, a rectangular slot is opened at the lower rear part, the device connection plug 9 is installed by screws, and the four sides are fixedly connected to the lower part of the shell 2 by screws and pins, the upper part of the shell 2 is fixedly connected to the top plate 3 by screws and pins, and the electrical control connector 10 and the speed regulating valve 11 are installed on one side of the shell 2 by screws, a rectangular slot is opened in the area at one end of the floating panel assembly 4, and four screw holes are evenly distributed around the area around the rectangular slot for installing the connecting screws 6, the floating panel The bottom surface of the component 4 contacts one end of the floating spring 5. Four floating springs 5 ​​are set according to the positions of the four screw holes set above. Similarly, four corresponding screw through holes are also set on the top plate 3. In this embodiment, the size of the screw through hole is twice the nominal diameter of the connecting screw 6. The other end of the floating spring 5 contacts the upper part of the top plate 3. The connecting screw 6 passes through the locking ball ring 7, the through hole on the top plate 3, and the floating spring 5 and the lower part of the floating panel component 4 are connected by threads. The socket core component 8 is a connecting rod structure with one end connected to the driving cylinder 805 and the other end connected to the socket core 801. One end of the connecting driving cylinder 805 of the socket core component 8 is fixed to the lower part of the floating panel component 4 by a screw, and the other end can be moved up and down relative to the floating panel component 4 by the drive of the driving cylinder 805. The socket core component 8 can also move horizontally following the floating panel component 4 through the fixed end.

[0032] Furthermore, the floating panel assembly 4 includes a socket panel 401, a panel connecting column 402, a limit locking plate 403, a hinge link 404, a spherical bump 405, and a plug protective cover 406. The plug protective cover 406 is installed on the upper surface of the socket panel 401 by screws, and the lower surface is connected to the upper part of the panel connecting column 402 by screws. The lower part of the panel connecting column 402 is fixedly connected to the upper surface of the limit locking plate 403 by screws, and the spherical bump 405 is installed on the lower surface of the limit locking plate 403 by screws. One end of the limit locking plate 403 is connected to one end of the hinge link 404 by a rotating pin.

[0033] Furthermore, the socket core assembly 8 includes a socket core 801, a socket core connecting column 802, a socket core connecting plate 803, a driving rod 804, a driving cylinder 805, a cylinder connecting rod 806, and a cylinder seat 807. The lower part of the socket core 801 is connected to the upper end of the socket core connecting column 802 by a screw, and the lower end of the socket core connecting column 802 is connected to the socket core connecting plate 803 by a screw. The middle part of the socket core connecting plate 803 is connected to one end of the driving rod 804 by a rotating pin shaft, and the other end of the driving rod 804 is connected to one end of the cylinder connecting rod 806 by a rotating pin shaft. The middle part of the driving rod 804 is connected to the floating panel assembly by a rotating pin shaft. The other end of the hinge connecting rod 404 of the component 4 is connected, and the other end of the cylinder connecting rod 806 is connected to the cylinder rod of the driving cylinder 805 through a thread. The cylinder body of the driving cylinder 805 is connected to the cylinder seat 807 through a rotating pin. The cylinder seat 807 is installed on the lower surface of the socket panel 401 of the floating panel assembly 4 through screws. The extension and retraction of the driving cylinder 805 of the socket core assembly 8 can drive the driving connecting rod 804 through the cylinder connecting rod 806 and then drive the socket core 801 to move up and down relative to the floating panel assembly 4. The socket core assembly 8 as a whole can move horizontally with the floating panel assembly 4 through the cylinder seat 807 fixed on the floating panel assembly 4.

[0034] Furthermore, in this embodiment, a rectangular slot is opened on the top plate 3 above the socket core 801 of the socket core assembly 8, and the slot can meet the up and down movement of the socket core 801. A corresponding U-shaped groove is opened on the top plate 3 at the position where the panel connecting column 402 passes. The width and length of the U-shaped groove are both larger than the diameter of the panel connecting column 402, and the gap between it and the panel connecting column 402 is larger than the gap between the four screw through holes opened on the top plate 3 and the nominal diameter of the connecting screw 6, so as to ensure that when the floating panel assembly 4 floats, the panel connecting column 402 will not collide with the top plate 3.

[0035] Furthermore, the socket core 801 includes a core body 8011, a plug guide sleeve 8012, a probe 8013, and a temperature sensor 8014. The lower part of the core body 8011 is connected to the socket core connecting column 802 of the socket core assembly 8 by screws, and the plug guide sleeve 8012 is installed on the upper part of the core body 8011 by screws. There are three probes 8013, which pass through the core body 8011 from bottom to top and are fixed to the core body 8011 by screws, corresponding to the electric plug 100 of the new energy vehicle electric system. The core body 8011 is installed with a temperature sensor 8014 by screws at the rear of the lower part of the installation position of the plug guide sleeve 8012. There are three temperature sensors 8014, and the installation spacing corresponds to the installation spacing of the probes 8013. In this embodiment, the temperature sensor adopts a non-contact temperature sensor, which can detect the temperature of each probe 8013 during the test. The rear end of the probe 8013 is connected to the device connection plug 9 through a wiring harness.

[0036] Furthermore, when the electric plug 100 is not inserted, the floating panel assembly 4 maintains a certain gap with the top plate 3 under the action of the spring force of the floating spring 5 that contacts the lower surface of its socket panel 401. The connecting screws 6 installed on the socket panel 401 tighten the locking ball ring 7 under the action of the spring force, so that the locking ball ring 7 is tightly fastened in the groove set on the lower surface of the top plate 3. The surface of the groove cooperates with the locking ball ring 7. In this embodiment, the groove surface is a conical surface, and the upper surface of the locking ball ring 7 is a spherical surface, so that the floating panel assembly 4 is locked and cannot move in the horizontal direction.

[0037] Furthermore, when the electric plug 100 is inserted into the floating panel assembly 4, the electric plug 100 contacts the plug protective cover 406 installed above the floating panel assembly 4. Under the external force of the electric plug 100, the socket panel 401 of the floating panel assembly 4 moves downward, compressing the floating spring 5, driving the connecting screw 6 to move downward, so that the lower end of the connecting screw 6 and the locking ball ring 7 no longer have a tensioning force. The locking ball ring 7 moves downward with the connecting screw 6 due to gravity, so that the spherical surface of the locking ball ring 7 is separated from the groove surface of the top plate 3, resulting in a gap. In this embodiment, the gap is the difference between the diameter of the screw through hole corresponding to the top plate 3 and the nominal diameter of the connecting screw 6. The entire floating panel assembly 4 floats horizontally within the range of this gap, so that the electric plug 100 can be smoothly inserted into the plug protective cover 406.

[0038] Furthermore, after the electric plug 100 is inserted into the plug protective cover 406, the driving cylinder 805 of the socket core assembly 8 extends, and drives the driving connecting rod 804 to rotate around the corresponding rotating pin through the cylinder connecting rod 806, thereby driving the socket core connecting plate 803 to move upward, and then driving the socket core 801 to move upward, so that the plug guide sleeve 8012 and the probe 8013 on the socket core 801 can contact the pins of the electric plug 100, completing the entire plug-in process of the electric plug 100 of the new energy vehicle electric system.

[0039] Furthermore, a flange is provided on the upper part of the shell 2, and the lower surface of the flange limits the upper surface of the socket panel 401 of the floating panel assembly 4. A certain gap is provided between the lower surface of the socket panel 401 and the upper surface of the top plate 3 under the action of the floating spring 5, so that the floating panel assembly 4 can float up and down. A certain gap is also provided between the lower surface of the spherical protrusion 405 installed on the lower surface of the limiting locking plate 403 at the lower part of the floating panel assembly 4 and the upper surface of the bottom plate 1, and the gap is smaller than the gap between the lower surface of the socket panel 401 and the upper surface of the top plate 3, thereby ensuring that when the floating panel assembly 4 is pressed down by the plugging force of the electric plug 100, the spherical protrusion 405 first contacts the upper surface of the top plate 3, providing a supporting reaction force to prevent the floating panel assembly 4 from being further pressed down, ensuring that there is still a gap between the socket panel 401 and the top plate 3 of the floating panel assembly 4, so that it floats.

[0040] Furthermore, the electric plug 100 applies a certain downward pressure to the floating panel assembly 4 during the process of being inserted into the socket box, causing it to float. When the insertion is completed and the system test begins, no additional downward pressure is generated. At this time, the floating panel assembly 4, under the action of the floating spring 5, still drives the connecting screw 6 and then drives the locking ball ring 7 to be locked in the groove on the lower surface of the top plate 3. Therefore, during the test, the socket box is in a locked state, ensuring the safety and stability of the connection between the electric plug 100 and the socket box during the test.

[0041] Furthermore, a through hole is provided on the outside of the socket core 801 of the socket core assembly 8, and the panel connecting column 402 of the floating panel assembly 4 passes through the through hole. The size of the through hole is larger than the diameter of the panel connecting column 402. Therefore, when the socket core assembly 8 is driven by its driving cylinder 805, the socket core 801 and the electric plug 100 also have a certain floating property when plugging together, ensuring the smooth plugging of the socket core 801 and the electric plug 100. In this embodiment, the through hole provided on the outside of the socket core 801 is a stepped hole structure, the diameter of the small hole is 6.25% larger than the diameter of the panel connecting column 402, and the diameter of the large hole is 25% larger than the diameter of the panel connecting column 402. The setting of this embodiment ensures that the socket core assembly 8 moves up and down smoothly on the panel connecting column 402, and the floating amount is within a reasonable range determined by analyzing the structural size error of the electric plug 100.

[0042] Furthermore, the driving cylinder 805 of the socket core assembly 8 is fixedly mounted on the lower part of the socket panel 401 of the floating panel assembly 4 by screws through the cylinder seat 807, so that the entire socket core assembly 8 can float in the horizontal direction following the floating panel assembly 4, ensuring the consistency of the relative positions of the socket core 801 and the plug protective cover 406 on the floating panel assembly 4 when the electric plug 100 is plugged in.

[0043] Preferably, the plug protective cover 406 , the core 8011 , and the plug guide sleeve 8012 are all made of insulating materials. In this embodiment, the plug protective cover 406 and the plug guide sleeve 801 are made of polycarbonate, and the core 8011 is made of PA46.

[0044] Preferably, the probe 8013 is configured as a roller-type probe 8013 , so that the electrical plug 100 changes from traditional sliding contact to rolling contact when inserted into the probe 8013 , thereby extending the service life of the probe 8013 and ensuring safety during testing.

[0045] Preferably, a split smooth thin steel sheet is provided on the bottom plate 1 within the area where the spherical bump 405 contacts, so as to reduce the friction between the spherical bump 405 and the bottom plate 1 and facilitate replacement after friction wear.

[0046] Preferably, a speed regulating valve 11 is provided at the air inlet and outlet of the driving cylinder 805, and the speed regulating valve 11 is installed on the housing 2 to facilitate regulating the air inlet and outlet of the cylinder.

[0047] Preferably, the signal control interfaces of the temperature sensor 8014, cylinder air inlet and outlet control, etc. are integrated into a unified electrical control connector 10 through a wiring harness and an air pipe, and are connected to an external test device through the connector.

[0048] The above is only a preferred specific embodiment of the invention, but the scope of protection of the invention is not limited to this. Any technician familiar with this technical field can make equivalent substitutions or changes within the technical scope disclosed by the invention based on the technical solution and inventive concept of the invention, which should be covered by the scope of protection of the invention.

Claims

1. A socket box for testing the electric system of new energy vehicles, characterized by: The invention comprises a base plate (1), a shell (2), a top plate (3), a floating panel assembly (4), a floating spring (5), a connecting screw (6), a locking ball ring (7), a socket core assembly (8), a device connection plug (9), an electrical control connector (10) and a speed regulating valve (11), wherein the base plate (1) is fixedly mounted on a test device for testing an electric system of a new energy vehicle, a device connection plug (9) is mounted below the rear of the base plate (1), the base plate (1) is fixedly connected to the lower part of the shell (2) on all sides, the upper part of the shell (2) is fixedly connected to the top plate (3), a device connection plug (9) is fixedly mounted below the rear of the base plate (1), an electrical control connector (10) and a speed regulating valve (11) are provided on one side of the top plate (3), the electrical control connector (10) and the speed regulating valve (11) are fixedly mounted on one side of the shell (2), and the electrical control connector (10) is located above the speed regulating valve (11); The floating panel assembly (4) comprises a socket panel (401), a panel connecting column (402), a limiting locking plate (403), a hinge connecting rod (404), a spherical protrusion (405) and a plug protection cover (406); the plug protection cover (406) is fixedly mounted on the upper surface of the socket panel (401); the lower surface of the socket panel (401) is fixedly connected to the upper part of the panel connecting column (402); the lower part of the panel connecting column (402) is fixedly connected to the upper surface of the limiting locking plate (403); the lower surface of the limiting locking plate (403) is equipped with a spherical protrusion (405); one end of the limiting locking plate (403) is connected to one end of the hinge connecting rod (404) via a rotating pin; The socket core assembly (8) comprises a socket core (801), a socket core connecting column (802), a socket core connecting plate (803), a driving connecting rod (804), a driving cylinder (805), a cylinder connecting rod (806) and a cylinder seat (807), wherein the lower portion of the socket core (801) is fixedly connected to the upper end of the socket core connecting column (802), the lower end of the socket core connecting column (802) is fixedly connected to the socket core connecting plate (803), and the middle portion of the socket core connecting plate (803) is connected to the driving connecting rod (804). 04), the other end of the driving connecting rod (804) is connected to one end of the cylinder connecting rod (806) through a rotating pin, the middle part of the driving connecting rod (804) is connected to the other end of the hinge connecting rod (404) through a rotating pin, the other end of the cylinder connecting rod (806) is fixedly connected to the cylinder rod of the driving cylinder (805), the cylinder body of the driving cylinder (805) is fixedly connected to the cylinder seat (807), and the cylinder seat (807) is fixedly mounted on the lower surface of the socket panel (401); The bottom surface of the floating panel assembly (4) contacts one end of the floating spring (5), and the other end of the floating spring (5) contacts the upper part of the top plate (3). The connecting screw (6) passes through the locking ball ring (7), the through hole opened on the top plate (3), the floating spring (5) from bottom to top and is connected to the lower part of the floating panel assembly (4); one end of the socket core assembly (8) is fixedly installed on the lower part of the floating panel assembly (4).

2. The socket box for testing the electric system of a new energy vehicle according to claim 1, characterized in that: The socket core (801) comprises a core body (8011), a plug guide sleeve (8012), a probe (8013) and a temperature sensor (8014). The lower portion of the core body (8011) is connected to the socket core connection column (802) of the socket core assembly (8). The plug guide sleeve (8012) is fixedly mounted on the upper portion of the core body (8011). Three probes (8013) are provided. The three probes (8013) respectively pass through the core body (8011) from bottom to top and are fixed. The core (8011) is fixed to correspond to the electric plug (100) of the electric system of the new energy vehicle. The core (8011) is provided with a temperature sensor (8014) at the rear of the lower part of the installation position of the plug guide sleeve (8012). Three temperature sensors (8014) are provided. The installation spacing of the three temperature sensors (8014) corresponds to the installation spacing of the probe (8013). The rear end of the probe (8013) is connected to the device connection plug (9) through a wiring harness.

3. The socket box for testing the electric system of a new energy vehicle according to claim 2, characterized in that: A pneumatic cylinder is used to drive the socket core assembly (8) to move up and down relative to the floating panel assembly (4).

4. The socket box for testing the electric system of a new energy vehicle according to claim 3, characterized in that: The plug protective cover (406), the core (8011), and the plug guide sleeve (8012) are all made of insulating materials.

5. The socket box for testing the electric system of a new energy vehicle according to claim 4, characterized in that: The probe (8013) is configured as a roller probe.

6. The socket box for testing the electric system of a new energy vehicle according to claim 5, characterized in that: The air inlet and outlet of the driving cylinder (805) are provided with a speed regulating valve (11), and the driving cylinder (805) is fixedly mounted on the lower part of the socket panel (401) via a cylinder seat (807).

7. A method for using a socket box for testing an electric system of a new energy vehicle, using the socket box for testing an electric system of a new energy vehicle according to claim 6, characterized in that: The method comprises the following steps: When the electric plug (100) is inserted into the floating panel assembly (4), the electric plug (100) contacts the floating panel assembly (4). Under the action of the external force of the electric plug (100), the socket panel (401) of the floating panel assembly (4) moves downward, compressing the floating spring (5), driving the connecting screw (6) to move downward, so that there is no longer a tensioning force between the lower end of the connecting screw (6) and the locking ball ring (7). The locking ball ring (7) moves downward along with the connecting screw (6) due to the action of gravity, so that the spherical surface of the locking ball ring (7) is separated from the groove surface of the top plate (3), generating a gap, and the entire floating panel assembly (4) floats horizontally within the range of the gap; After the electric plug (100) is inserted into the plug protective cover (406), the driving cylinder (805) of the socket core assembly (8) extends, and drives the driving connecting rod (804) to rotate around the corresponding rotating pin through the cylinder connecting rod (806), driving the socket core connecting plate (803) to move upward, driving the socket core (801) to move upward, so that the plug guide sleeve (8012) and the probe (8013) on the socket core (801) can contact the pins of the electric plug (100).

8. The method for using a socket box for testing the electric system of a new energy vehicle according to claim 7, characterized in that: A flange is provided on the upper portion of the housing (2), and the lower surface of the flange limits the upper surface of the socket panel (401) of the floating panel assembly (4). A certain gap is provided between the lower surface of the socket panel (401) and the upper surface of the top plate (3) under the action of the floating spring (5), so that the floating panel assembly (4) floats up and down. A certain gap is also provided between the lower surface of the spherical protrusion (405) and the upper surface of the bottom plate (1), and the gap is smaller than the gap between the lower surface of the socket panel (401) and the upper surface of the top plate (3). When the floating panel assembly (4) is pressed down by the plugging force of the electric plug (100), the spherical protrusion (405) first contacts the upper surface of the top plate (3), providing a supporting reaction force to prevent the floating panel assembly (4) from being further pressed down, thereby ensuring that there is still a gap between the socket panel (401) and the top plate (3) of the floating panel assembly (4).

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