A new high-voltage battery swap connector vehicle end low-voltage assembly

Abstract

The utility model relates to high -pressure exchange connector field especially a new -type high -pressure exchange connector car end low -voltage assembly, including floating protection part, including battery end low -voltage plate seat and car end low -voltage plate seat, the outside of car end low -voltage plate seat is provided with the floating plate, the inside of car end low -voltage plate seat is provided with the first -class floating spring and car end low -voltage pole, the bottom fixed connection of car end low -voltage plate seat has the second -class floating spring, the inside of floating plate is provided with car end low -voltage plate seat upper cover, the inside of battery end low -voltage plate seat is provided with battery end low -voltage pole. Through the floating protection part set up, utilize the structure of second -class floating, reached the effect that car end low -voltage pole exposes the length of car end low -voltage plate seat is shorter, reduce the possibility of low -voltage pole between accumulation stone, sand, leaf, paper, avoid the accumulation of sundries to press bend pole even cause pole or plate seat damage, reduce the ability of hooking plastic bag, film, so as to avoid the transmission of low -voltage signal, energy.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage battery swapping connectors, and in particular to a novel high-voltage battery swapping connector vehicle-side low-voltage assembly. Background Technology

[0002] Existing high-voltage battery swapping connectors generally adopt a low-voltage assembly design that includes exposed low-voltage terminals on the vehicle side. Their main function is to provide necessary control signals, communication connections, and low-voltage power transmission paths for electric vehicles when swapping battery packs at battery swapping stations.

[0003] During use, after a period of time, the low-voltage terminals of the power swapping connectors in the tram accumulate garbage such as sand, stones, paper, and leaves. When pressed together, the low-voltage terminals are forced to bend and may even damage the low-voltage assembly. In addition, garbage such as plastic bags and films blown by the wind onto the excessively long low-voltage terminals can also block communication signals. As a result, the actual service life of the high-voltage power swapping connectors in use occasionally does not reach the design life. Utility Model Content

[0004] In view of the problem that the actual service life of high-voltage power swapping connectors sometimes fails to reach the design life in the above or existing technologies, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A floating protective component includes a battery-side low-voltage plate holder and a vehicle-side low-voltage plate holder. A floating plate is provided on the outside of the vehicle-side low-voltage plate holder. A primary floating spring and a vehicle-side low-voltage terminal are provided inside the vehicle-side low-voltage plate holder. A secondary floating spring is fixedly connected to the bottom of the vehicle-side low-voltage plate holder. A vehicle-side low-voltage plate holder cover is provided inside the floating plate. A battery-side low-voltage terminal is provided inside the battery-side low-voltage plate holder. A connecting and fixing component includes a low-voltage terminal finger spring, which is located on the top of the vehicle-side low-voltage terminal. A vehicle-side low-voltage terminal flange and a low-voltage assembly bolt group are provided inside the vehicle-side low-voltage plate holder. A vehicle-side low-voltage wiring harness is provided inside the vehicle-side low-voltage plate holder cover.

[0006] As a preferred embodiment of the new high-voltage battery swapping connector vehicle-side low-voltage assembly of this utility model, wherein: a groove for fixing the low-voltage terminal spring is provided above the vehicle-side low-voltage terminal, and barbs for fixing the vehicle-side low-voltage terminal flange are provided below the vehicle-side low-voltage terminal, and the vehicle-side low-voltage terminal flange is in direct contact with the vehicle-side low-voltage plate seat and the vehicle-side low-voltage plate seat cover.

[0007] As a preferred embodiment of the new high-voltage battery swapping connector vehicle-side low-voltage assembly of this utility model, the tail end of the vehicle-side low-voltage terminal is provided with a deep hole and a process hole for hexagonal crimping with the wire harness and for observing whether the low-voltage wire harness is inserted to the correct depth.

[0008] As a preferred embodiment of the new high-voltage battery swapping connector vehicle-side low-voltage assembly of this utility model, the vehicle-side low-voltage board seat has two types of holes in the middle, and 28 holes with smaller upper parts and larger lower parts are used for limiting and guiding the vehicle-side low-voltage pole and the vehicle-side low-voltage pole flange, and 2 holes with larger upper parts and smaller lower parts are used for fastening the vehicle-side low-voltage board seat and the vehicle-side low-voltage board seat cover.

[0009] As a preferred embodiment of the new high-voltage battery swapping connector vehicle-side low-voltage assembly of this utility model, the lower outer side of the vehicle-side low-voltage board seat uses a square with enlarged rounded corners to cooperate with the floating plate for guidance.

[0010] As a preferred embodiment of the new high-voltage battery swapping connector vehicle-side low-voltage assembly of this utility model, wherein: the bottom end of the vehicle-side low-voltage plate seat has a shallow hole and a boss that fits into the top end of the vehicle-side low-voltage plate seat cover with a groove, which is used for guidance when fastening the vehicle-side low-voltage plate seat and the vehicle-side low-voltage plate seat cover.

[0011] As a preferred embodiment of the new high-voltage battery swapping connector vehicle-side low-voltage assembly of this utility model, wherein: the top of the vehicle-side low-voltage plate seat is engraved with a digital identifier marking the low-voltage pole serial number; the upper cover of the vehicle-side low-voltage plate seat has 28 holes with larger upper holes and smaller lower holes for fixing the lower end of the first-stage floating spring; and 2 holes with smaller upper holes and larger lower holes are used to fasten the low-voltage assembly bolt group to the vehicle-side low-voltage plate seat.

[0012] As a preferred embodiment of the new high-voltage battery swapping connector vehicle-side low-voltage assembly of this utility model, wherein: the cylindrical portion above the vehicle-side low-voltage board seat cooperates with the circular hole below the groove of the floating plate for guidance, and the outer wing plate at the bottom end of the vehicle-side low-voltage board seat cover is placed below the floating plate to prevent the low-voltage assembly from detaching from the floating plate.

[0013] As a preferred embodiment of the new high-voltage battery swapping connector vehicle-side low-voltage assembly of this utility model, the secondary floating spring is installed in the middle of the groove bottom of the vehicle-side low-voltage plate seat and the floating plate, and is used for supporting the vehicle-side low-voltage assembly and rebounding after compression.

[0014] As a preferred embodiment of the new high-voltage battery swapping connector vehicle-side low-voltage assembly of this utility model, the lower part of the vehicle-side low-voltage board seat cover is hollowed out to free up space for the low-voltage wiring harness to prevent the low-voltage wiring harness from being broken or worn through due to excessive curvature after tens of thousands of bends.

[0015] The beneficial effects of this novel high-voltage battery swapping connector vehicle-side low-voltage assembly are as follows: 1. By setting up floating protective components and utilizing a two-stage floating structure, the length of the low-voltage terminal exposed above the low-voltage plate seat at the vehicle end is reduced. This reduces the possibility of pebbles, gravel, leaves, and paper accumulating between the low-voltage terminals, and prevents debris from bending the terminals or even damaging the terminals or plate seat during pressing. The shorter length of the low-voltage terminal exposed above the low-voltage plate seat at the vehicle end also reduces the ability to hook plastic bags and films, so as not to block the transmission of low-voltage signals and energy.

[0016] 2. By using the connection and fixing components, the contact enhancement of the low-voltage pole finger spring, the barb fixing of the low-voltage pole flange at the vehicle end, the tightening of the low-voltage assembly bolt group, and the opening guide structure of the low-voltage plate seat at the vehicle end, the effects of ensuring reliable signal transmission, preventing signal blockage, maintaining accurate alignment, and ensuring overall structural stability are achieved.

[0017] 3. By setting a two-stage floating structure, the compression amount of the low-voltage terminal at the vehicle end is divided into a first-stage floating compression amount of the low-voltage terminal at the vehicle end and a second-stage floating compression amount of the low-voltage plate seat at the vehicle end, so as to prevent the accumulation of debris between the low-voltage terminals at the vehicle end, which could cause damage to the low-voltage terminal at the vehicle end or the low-voltage plate seat at the vehicle end during compression. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the external structure of the low-voltage assembly at the vehicle end of the new high-voltage battery swapping connector.

[0020] Figure 2 This is a schematic diagram of the longitudinal section of the low-voltage assembly at the vehicle end of the new high-voltage battery swapping connector.

[0021] Figure 3 This is a schematic diagram of the battery-side low-voltage assembly structure of the new high-voltage battery swapping connector vehicle-side low-voltage assembly.

[0022] Figure 4 This is a cross-sectional view of the battery-side low-voltage assembly of the new high-voltage battery swapping connector vehicle-side low-voltage assembly.

[0023] Figure 5 This is a schematic diagram of the vehicle-side low-voltage assembly structure of the new high-voltage battery swapping connector.

[0024] Figure 6 This is a cross-sectional view of the vehicle-side low-voltage assembly of the new high-voltage battery swapping connector.

[0025] In the diagram: 10. Battery end low-voltage plate holder; 11. Vehicle end low-voltage plate holder; 12. Floating plate; 13. First-stage floating spring; 14. Second-stage floating spring; 15. Vehicle end low-voltage terminal; 16. Vehicle end low-voltage plate holder cover; 17. Battery end low-voltage terminal; 20. Low-voltage terminal finger spring; 21. Vehicle end low-voltage terminal flange; 22. Vehicle end low-voltage wiring harness; 23. Low-voltage assembly bolt group. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Example 1, referring to Figures 1-6 This is the first embodiment of the present invention. This embodiment provides a novel high-voltage battery swapping connector vehicle-side low-voltage assembly, which can avoid waste accumulation, prevent terminal bending, and signal blockage, and ensure the precise alignment of all terminals during pressing. It includes a floating protective component, including a battery-side low-voltage plate seat 10 and a vehicle-side low-voltage plate seat 11. A floating plate 12 is provided on the outside of the vehicle-side low-voltage plate seat 11. A first-stage floating spring 13 and a vehicle-side low-voltage terminal 15 are provided inside the vehicle-side low-voltage plate seat 11. A second-stage floating spring 14 is fixedly connected to the bottom of the vehicle-side low-voltage plate seat 11. A vehicle-side low-voltage plate seat cover 16 is provided inside the floating plate 12. A battery-side low-voltage terminal 17 is provided inside the battery-side low-voltage plate seat 10.

[0028] Specifically, a groove is formed on the upper surface of the low-voltage terminal 15 at the vehicle end for installing the low-voltage terminal finger spring 20. A barb is provided at the lower end of the low-voltage terminal 15 at the vehicle end. When the low-voltage terminal flange 21 is pushed to the bottom of the low-voltage terminal 15 at the vehicle end, the barb will fix the low-voltage terminal flange 21 in place through an interference fit. The tail end of the low-voltage terminal 15 at the vehicle end has a deep hole and a process hole. After the low-voltage wire harness 22 at the vehicle end is inserted into the deep hole at the tail end of the low-voltage terminal 15 at the vehicle end, a hexagonal crimp is performed to fix the two together. The process hole is used to observe whether the insertion depth of the wire harness is in place.

[0029] Furthermore, a groove for fixing the low-voltage terminal spring 20 is provided above the low-voltage terminal 15, and a barb for fixing the low-voltage terminal flange 21 is provided below the low-voltage terminal 15. The low-voltage terminal flange 21 is in direct contact with the low-voltage plate seat 11 and the low-voltage plate seat cover 16. The tail end of the low-voltage terminal 15 has a deep hole and a process hole for hexagonal crimping with the wire harness and for observing whether the low-voltage wire harness is inserted in the correct depth. The low-voltage plate seat 11 has two types of holes in the middle. 28 holes with smaller openings at the top and larger openings at the bottom are used for limiting and guiding the low-voltage terminal 15 and the low-voltage terminal flange 21. 2 holes with larger openings at the top and smaller openings at the bottom are used for fastening the low-voltage plate seat 11 and the low-voltage plate seat cover 16. The lower outer side of the low-voltage plate seat 11 uses a square with enlarged rounded corners for guidance in conjunction with the floating plate.

[0030] The vehicle-end low-voltage plate seat 11 has two types of openings in the middle part: 28 holes with smaller upper openings and larger lower openings are used to install the vehicle-end low-voltage terminal 15 and guide the vehicle-end low-voltage terminal 15 and the low-voltage terminal flange 21; and 2 holes with larger upper openings and smaller lower openings are used to place small flat washers, spring washers, and hexagon socket head caps for fastening to the vehicle-end low-voltage plate seat cover 16.

[0031] Preferably, the bottom end of the low-voltage plate seat 11 has a shallow hole and a boss that fits into the top end of the low-voltage plate seat cover 16, serving as a guide when fastening the low-voltage plate seat 11 to the cover 16. The top end of the low-voltage plate seat 11 is engraved with a numerical identifier marking the low-voltage terminal number. The upper part of the low-voltage plate seat cover 16 has 28 holes (larger at the top and smaller at the bottom) for fixing the lower end of the first-stage floating spring 13, and two holes (smaller at the top and larger at the bottom) for fastening the low-voltage assembly bolt group 23 to the low-voltage plate seat 11. The upper cylindrical part 1 cooperates with the circular hole below the groove of the floating plate 12 for guidance. The outer wing plate at the bottom of the vehicle end low-voltage plate seat cover 16 is placed below the floating plate 12 to prevent the low-voltage assembly from falling off the floating plate. The secondary floating spring 14 is installed in the middle of the groove bottom of the vehicle end low-voltage plate seat 11 and the floating plate 12 to support the vehicle end low-voltage assembly and rebound after compression. The lower part of the vehicle end low-voltage plate seat cover 16 is hollowed out to make room for the low-voltage wiring harness to avoid the low-voltage wiring harness from being broken or worn through due to excessive curvature after tens of thousands of bends.

[0032] It should be noted that the bottom end of the vehicle-end low-voltage plate seat 11 is provided with a shallow groove and a boss that fits perfectly with the top end of the vehicle-end low-voltage plate seat cover 16. When the low-voltage assembly bolt group 23 tightens the two, it can guide itself. The outer periphery of the vehicle-end low-voltage plate seat 11 is square. When moving, it cooperates with the inner wall of the groove of the floating plate 12 for guidance and limitation. The secondary floating spring 14 is installed between the vehicle-end low-voltage plate seat 11 and the bottom end of the groove of the floating plate 12. It is used to provide pressure to press the vehicle-end low-voltage plate seat and the battery-end low-voltage plate seat together, and to spring the vehicle-end low-voltage assembly back to the initial position after release.

[0033] In use, the first-stage floating spring 13 is installed between the vehicle-end low-voltage plate seat cover 16 and the low-voltage terminal flange 21. It provides pressure to press the vehicle-end low-voltage terminal 15 and the battery-end low-voltage terminal 17 together. After release, it will spring the vehicle-end low-voltage terminal 15 back to its original position. The bottom wing plate of the vehicle-end low-voltage plate seat cover 16 is placed below the bottom of the groove of the floating plate 12. When it springs back, it is blocked by the bottom of the floating plate 12 to prevent it from falling out. The bottom of the vehicle-end low-voltage plate seat cover 16 is hollowed out to increase the bending space of the low-voltage wiring harness 22 and prevent it from breaking after tens of thousands of bends.

[0034] Example 2, refer to Figures 1-6 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a new type of high-voltage battery swapping connector vehicle-side low-voltage assembly connection and fixing component based on embodiment 1. This component ensures reliable connection and structural integrity of the low-voltage circuit and provides the operating foundation for the first component. The connection and fixing component includes a low-voltage terminal spring 20, which is located on the top of the vehicle-side low-voltage terminal 15. The vehicle-side low-voltage plate seat 11 contains a vehicle-side low-voltage terminal flange 21 and a low-voltage assembly bolt group 23. The vehicle-side low-voltage plate seat cover 16 contains a vehicle-side low-voltage wiring harness 22.

[0035] Specifically, the low-voltage terminal spring 20 is pressed into the groove on the top end face of the low-voltage terminal 15 at the vehicle end and is locked in place. This increases the contact points between the low-voltage terminal 15 at the vehicle end and the low-voltage terminal 17 at the battery end. The inner ring of the low-voltage terminal flange 21 is press-fitted with the low-voltage terminal 15 at the vehicle end with barbs. The outer periphery is circularly guided. Its upper end face is limited below the low-voltage plate seat 11 at the vehicle end to prevent the terminal from coming out. The lower end face is in contact with the first-stage floating spring 13. There are 28 holes with larger upper holes and smaller lower holes on the top cover 16 of the low-voltage plate seat at the vehicle end to install the first-stage floating spring 13 and to provide a through hole for the wire harness. Two holes with smaller upper holes and larger lower holes are used to place hexagonal nuts and to provide through holes for bolt rods.

[0036] During use, the top surface of the vehicle-end low-voltage plate holder 11 is clearly marked with numerical identifiers to accurately mark the serial number position of each installed low-voltage terminal, ensuring quick identification and positioning during assembly and maintenance. Furthermore, the cylindrical structure above the vehicle-end low-voltage plate holder 11 forms a precise fit with the circular hole below the groove of the floating plate 12, providing axial sliding guidance during battery swapping and precisely guiding relative displacement. Simultaneously, the cylindrical portion above the upper cover 16 of the vehicle-end low-voltage plate holder and the circular hole at the bottom of the groove of the floating plate 12 constitute a secondary guide structure. This dual-stage fit ensures that the vehicle-end low-voltage assembly moves smoothly vertically within the floating plate 12, maintaining a coaxial state and effectively preventing skewness and jamming.

[0037] It should be further explained that in this two-stage floating structure, a low-voltage terminal spring is installed at the top of the low-voltage terminal on the vehicle side. This increases the contact points when the low-voltage terminal on the vehicle side is pressed together, reducing the resistance and pressure between the low-voltage terminals on the vehicle and battery sides, thus preventing excessive temperature rise or damage to the end face. A barb is provided at the lower end of the low-voltage terminal on the vehicle side to secure the low-voltage terminal flange. This flange prevents the low-voltage terminal from detaching from the low-voltage plate seat or falling off the cover of the low-voltage terminal seat. A low-voltage terminal spring is installed at the lower end of the low-voltage terminal flange, allowing the low-voltage terminal to retract into the low-voltage plate seat on the vehicle side during pressing, protecting the terminal and providing pressure to ensure the low-voltage terminal on the vehicle side is pressed tightly against the low-voltage terminal on the battery side, preventing signal disconnection. The low-voltage plate seat on the vehicle side has mounting holes for the low-voltage terminal, which limit and guide its movement. The external part guides the low-voltage assembly by engaging with the floating plate groove. A secondary floating spring is installed below the low-voltage plate seat at the vehicle end, which allows the low-voltage plate seat to retract into the floating plate groove to prevent damage during pressing and provides pressure to press the low-voltage plate seat tightly against the battery end. Two pairs of bolts secure the top cover of the low-voltage plate seat at the bottom of the vehicle end. The guide groove at the upper end of the top cover engages with the boss at the lower end of the low-voltage plate seat, automatically aligning them during installation. The cylindrical part of the top cover engages with the circular hole at the bottom of the floating plate groove for guidance. The lower end of the top cover rests on the lower end of the floating plate to prevent the low-voltage assembly from detaching from the upper end. The lower end of the low-voltage terminal is crimped with the low-voltage cable for signal and energy transmission.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model 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 solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A novel low-voltage assembly for the vehicle end of a high-voltage battery swapping connector, characterized in that: include, The floating protective component includes a battery end low-voltage plate seat (10) and a vehicle end low-voltage plate seat (11). A floating plate (12) is provided on the outside of the vehicle end low-voltage plate seat (11). A first-stage floating spring (13) and a vehicle end low-voltage terminal (15) are provided inside the vehicle end low-voltage plate seat (11). A second-stage floating spring (14) is fixedly connected to the bottom of the vehicle end low-voltage plate seat (11). A vehicle end low-voltage plate seat cover (16) is provided inside the floating plate (12). A battery end low-voltage terminal (17) is provided inside the battery end low-voltage plate seat (10). The connecting and fixing components include a low-voltage terminal spring (20), which is located on the top of the low-voltage terminal (15) at the vehicle end. The low-voltage plate seat (11) at the vehicle end is provided with a low-voltage terminal flange (21) and a low-voltage assembly bolt group (23). The cover (16) at the vehicle end of the low-voltage plate seat at the vehicle end is provided with a low-voltage wiring harness (22).

2. The novel high-voltage battery swapping connector vehicle-side low-voltage assembly as described in claim 1, characterized in that: The vehicle end low-voltage terminal (15) has a groove above it for fixing the low-voltage terminal finger spring (20), and the vehicle end low-voltage terminal (15) has a barb below it for fixing the vehicle end low-voltage terminal flange (21). The vehicle end low-voltage terminal flange (21) is in direct contact with the vehicle end low-voltage plate seat (11) and the vehicle end low-voltage plate seat cover (16).

3. The novel high-voltage battery swapping connector vehicle-side low-voltage assembly as described in claim 2, characterized in that: The tail end of the low-voltage terminal (15) of the vehicle end is provided with a deep hole and a process hole, which are used to perform hexagonal crimping with the wire harness and to observe whether the low-voltage wire harness is inserted in the correct depth.

4. The novel high-voltage battery swapping connector vehicle-side low-voltage assembly as described in claim 3, characterized in that: The vehicle end low-pressure plate seat (11) has two types of holes in the middle. The 28 holes with smaller upper part and larger lower part are used for limiting and guiding the vehicle end low-pressure pole (15) and the vehicle end low-pressure pole flange (21). The 2 holes with larger upper part and smaller lower part are used for fastening the vehicle end low-pressure plate seat (11) and the vehicle end low-pressure plate seat cover (16).

5. The novel high-voltage battery swapping connector vehicle-side low-voltage assembly as described in claim 4, characterized in that: The lower outer side of the low-pressure plate seat (11) at the vehicle end uses a square with enlarged rounded corners to cooperate with the floating plate for guidance.

6. The novel high-voltage battery swapping connector vehicle-side low-voltage assembly as described in claim 5, characterized in that: The bottom of the low-pressure plate seat (11) has a shallow hole and a boss that fits into the top of the low-pressure plate seat cover (16) for guiding when fastening the low-pressure plate seat (11) and the low-pressure plate seat cover (16).

7. The novel high-voltage battery swapping connector vehicle-side low-voltage assembly as described in claim 6, characterized in that: The top of the vehicle end low-voltage plate seat (11) is engraved with a number marking the low-voltage pole number. The upper cover (16) of the vehicle end low-voltage plate seat has 28 holes with larger upper holes and smaller lower holes for fixing the lower end of the first-stage floating spring (13). Two holes with smaller upper holes and larger lower holes are used to fasten the low-voltage assembly bolt group (23) to the vehicle end low-voltage plate seat (11).

8. The novel high-voltage battery swapping connector vehicle-side low-voltage assembly as described in claim 7, characterized in that: The cylindrical part above the low-pressure plate seat (11) of the vehicle end cooperates with the circular hole below the groove of the floating plate (12) for guidance. The outer wing plate of the bottom end of the cover (16) of the low-pressure plate seat of the vehicle end is placed below the floating plate (12) to prevent the low-pressure assembly from coming off the top of the floating plate.

9. The novel high-voltage battery swapping connector vehicle-side low-voltage assembly as described in claim 1, characterized in that: The secondary floating spring (14) is installed in the middle of the groove bottom of the low-pressure plate seat (11) and the floating plate (12) at the vehicle end, and is used for the support of the low-pressure assembly at the vehicle end and the rebound after compression.

10. The novel high-voltage battery swapping connector vehicle-side low-voltage assembly as described in claim 9, characterized in that: The area below the low-voltage board seat cover (16) at the vehicle end is hollowed out to free up space for the low-voltage wiring harness to prevent it from being broken or worn through due to excessive curvature after tens of thousands of bends.

Images