High-voltage wiring harness of direct-current charging socket of bus

Abstract

The utility model relates to the technical field of high-voltage wire harnesses of bus charging sockets, in particular to a high-voltage wire harness of a bus direct-current charging socket, which comprises a charging socket, a plurality of wire harness bodies which are uniformly distributed are fixedly connected to the side wall of the charging socket, and one end of each wire harness body is fixedly connected with a battery connector. The wire harness comprises a wire harness body, the outer portion of the wire harness body is sleeved with a corrugated pipe, thermoplastic pipes are fixedly connected between the two ends of the corrugated pipe and the outer wall of the wire harness body, an anti-stretching mechanism used for preventing the wire harness body from being stretched excessively is arranged between the charging socket and the side wall of the wire harness body, and the anti-stretching mechanism comprises an upper anti-pulling plate and a lower anti-pulling plate. And the upper anti-pulling plate and the lower anti-pulling plate are semicircular and are oppositely arranged. Compared with the prior art, the connecting part between the charging socket and the wire harness body is effectively protected, and the problem that the stability and safety of current transmission are affected due to the fact that the connecting part is prone to loosening or damage is solved.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage wiring harness technology for bus charging sockets, and more particularly to a high-voltage wiring harness for a bus DC charging socket. Background Technology

[0002] In modern electric buses, the high-voltage wiring harness of the DC charging socket is a key component ensuring an efficient and safe connection between the battery system and the charging station. This harness is responsible for transmitting the high-voltage DC power provided by the charging station to the electric bus's battery pack to support fast charging needs. At the same time, the harness must be designed with high current carrying capacity to meet charging requirements of hundreds of amperes.

[0003] A Chinese patent has been published: a wiring harness for new energy electric vehicles, patent announcement number: CN214204106U. This patent "includes a DC charging socket, a first branch shielded cable, a second branch shielded cable, a third branch unshielded cable, a fourth branch shielded cable, a first high-voltage connector, a second high-voltage connector, a terminal block, a plug connector, a first closed-circuit corrugated tube, a second closed-circuit corrugated tube, a third closed-circuit corrugated tube, a fourth closed-circuit corrugated tube, and eight double-wall heat shrink tubing. This utility model as a whole achieves the IP67 protection level requirement and can meet the high-voltage usage requirements of new energy electric vehicles."

[0004] While this wiring harness can meet the high-voltage requirements of new energy electric vehicles and achieve conductivity between the shielding layer and the connector housing, it still has some drawbacks in actual use. Traditional technology, when repairing vehicles, often involves pulling on the numerous and long wiring harnesses. When pulled, the connection between the harness and the charging socket lacks tensile strength, making the connection prone to loosening or damage. Furthermore, slight loosening is difficult to detect, leading to issues with current transmission during normal use, thus affecting the stability and safety of the harness's current output. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a high-voltage wiring harness for a DC charging socket for buses, so as to solve the problem that the connection between the wiring harness and the charging socket lacks a protective structure, which leads to the connection being easily loosened or damaged due to the force applied during maintenance and repair during the charging process, thereby affecting the stability and safety of current transmission.

[0006] To achieve the above objectives, this utility model provides a high-voltage wiring harness for a DC charging socket in a bus, including a charging socket. Multiple evenly distributed wiring harness bodies are fixedly connected to the side wall of the charging socket. A battery connector is fixedly connected to one end of each wiring harness body. A corrugated tube is fitted over the outside of each wiring harness body. A thermoplastic tube is fixedly connected between both ends of the corrugated tube and the outer wall of the wiring harness body. An anti-tension mechanism is provided between the charging socket and the side wall of the wiring harness body to prevent excessive stretching of the wiring harness body.

[0007] Preferably, the tensile resistance mechanism includes an upper anti-tension plate and a lower anti-tension plate. The upper and lower anti-tension plates are both semi-circular in shape and arranged opposite to each other. Protective sleeves are fixedly connected to the side walls of the upper and lower anti-tension plates. Multiple anti-wire grooves for the wire harness body to pass through are opened on the side walls of the upper and lower anti-tension plates. Opposite buckles are fixedly connected to the bottom two sides of the upper anti-tension plate. Engaging grooves are opened on the top two sides of the lower anti-tension plate. A locking block is slidably connected to the side wall of the engaging groove. A pressing block is fixedly connected to the side wall of the locking block. A telescopic spring is fixedly connected to the side of the locking block away from the pressing block. One end of the telescopic spring is fixedly connected to the inner wall of the engaging groove.

[0008] Preferably, the bottom two sides of the upper anti-pull plate are fixedly connected with stabilizing blocks near the buckle, and the top two sides of the lower anti-pull plate are provided with stabilizing grooves near the engagement groove, and the outer wall of the stabilizing block and the inner wall of the stabilizing groove are adapted to each other.

[0009] Preferably, a tensile ring is fixedly connected to the outer wall of the end of the wiring harness body near the charging socket. The tensile ring is circular in shape and contacts the side walls of the upper and lower tensile plates.

[0010] Preferably, the charging socket has opposing tensile plates fixedly connected to both ends on the side near the wire harness body. The tensile plates are L-shaped, and the inner wall of the tensile plates is in contact with the side walls of the upper and lower tensile plates.

[0011] Preferably, a pushing block is fixedly connected to the side wall of the card block, and an anti-slip pad is fixedly connected to the side wall of the pushing block.

[0012] Preferably, the outer wall of the protective sleeve on the side wall of the upper anti-pull plate is fixedly connected with a strong Velcro fastener, and the outer wall of the protective sleeve on the side wall of the lower anti-pull plate is fixedly connected with an adhesive area.

[0013] The beneficial effects of this utility model are:

[0014] In the high-voltage wiring harness of the DC charging socket for buses, the tensile strength mechanism ensures that when the protective sleeve is touched or pulled by a maintenance hand, it moves the upper and lower anti-tension plates, bringing them into contact with the inner wall of the tensile strength plate. This effectively protects the connection between the charging socket and the wiring harness body, solving the problem of loosening or damage at the connection point, which affects the stability and safety of current transmission. The tensile force generated, while being transmitted through the upper and lower anti-tension plates, does not directly act on the connection point but is distributed through structural layers to the interior of the tensile strength plate. This dispersion effect effectively reduces the direct impact on the connection points, thereby protecting the internal wiring harness and improving the overall connection stability. Even if external force is applied to the wiring harness during routine maintenance, the integrity of the connection points will not be directly affected. This design greatly reduces the risk of malfunctions and improves the safety and reliability of electric bus charging. Furthermore, the snap-fit ​​mechanism on the upper anti-tension plate engages with the snap-fit ​​groove, and the strong Velcro on the protective sleeve adheres to the adhesive area, allowing for quick installation and saving installation time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is a frontal perspective three-dimensional structural diagram of the charging socket and wiring harness body of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the protective sleeve and strong Velcro of this utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the tensile plate of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the buckle, upper anti-pull plate, and lower anti-pull plate of this utility model;

[0021] Figure 6 This utility model Figure 5 Enlarged 3D structural diagram at point A.

[0022] The diagram is marked as follows:

[0023] 1. Charging socket; 2. Wiring harness body; 3. Battery connector; 4. Corrugated pipe; 5. Thermoplastic pipe; 6. Upper anti-pull plate; 7. Lower anti-pull plate; 8. Anti-wire groove; 9. Clip; 10. Engaging groove; 11. Clip block; 12. Pressing block; 13. Telescopic spring; 14. Push block; 15. Stabilizing block; 16. Stabilizing groove; 17. Tensile ring; 18. Tensile plate; 19. Protective sleeve; 20. Strong Velcro; 21. Adhesive area. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0025] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] like Figures 1 to 6 As shown, a high-voltage wiring harness for a DC charging socket in a bus includes a charging socket 1. Multiple evenly distributed wiring harness bodies 2 are fixedly connected to the side wall of the charging socket 1. A battery connector 3 is fixedly connected to one end of each wiring harness body 2. A corrugated tube 4 is fitted over the outside of each wiring harness body 2 to protect the internal wiring harness body 2. A thermoplastic tube 5 is fixedly connected between both ends of the corrugated tube 4 and the outer wall of the wiring harness body 2, ensuring the airtightness of the corrugated tube 4. An anti-tension mechanism is provided between the charging socket 1 and the side wall of the wiring harness body 2 to prevent excessive stretching of the wiring harness body 2.

[0027] Further, see attached document. Figures 3 to 6The tensile resistance mechanism includes an upper anti-tension plate 6 and a lower anti-tension plate 7. Both the upper and lower anti-tension plates 6 and 7 are semi-circular in shape and are arranged opposite each other. Protective sleeves 19 are fixedly connected to the side walls of both the upper and lower anti-tension plates 6 and 7. Multiple anti-wire grooves 8 for the wire harness body 2 to pass through are opened on the side walls of both the upper and lower anti-tension plates 6 and 7. Opposite buckles 9 are fixedly connected to the bottom two sides of the upper anti-tension plate 6. Engaging grooves 10 are opened on the top two sides of the lower anti-tension plate 7. A locking block 11 is slidably connected to the side wall of the engaging groove 10. A pressing block 12 is fixedly connected to the side wall of the locking block 11. A telescopic spring 13 is fixedly connected to the side of the locking block 11 away from the pressing block 12. One end of the telescopic spring 13 is fixedly connected to the inner wall of the engaging groove 10. The sides of the bottom of the upper anti-tension plate 6 near the buckles 9 are... A stabilizing block 15 is fixedly connected to the wall. A stabilizing groove 16 is provided on the side wall of the top two sides of the lower anti-pull plate 7 near the locking groove 10. The outer wall of the stabilizing block 15 and the inner wall of the stabilizing groove 16 are adapted to each other. An anti-pull ring 17 is fixedly connected to the outer wall of the end of the wire harness body 2 near the charging socket 1. The anti-pull ring 17 is circular in shape and contacts the side wall of the upper anti-pull plate 6 and the lower anti-pull plate 7. The two ends of the charging socket 1 near the wire harness body 2 are fixedly connected to the opposite anti-pull plates 18. The anti-pull plates 18 are L-shaped. The inner wall of the anti-pull plates 18 contacts the side wall of the upper anti-pull plate 6 and the lower anti-pull plate 7. A strong Velcro 20 is fixedly connected to the outer wall of the protective sleeve 19 on the side wall of the upper anti-pull plate 6. An adhesive area 21 is fixedly connected to the outer wall of the protective sleeve 19 on the side wall of the lower anti-pull plate 7.

[0028] When the anti-tension mechanism is in use, first, the upper anti-tension plate 6 and the lower anti-tension plate 7 are positioned opposite each other. Then, the wire harness body 2 is placed in the anti-wire groove 8 at the top of the lower anti-tension plate 7. Next, the lower anti-tension plate 7 is pressed down, causing the buckle 9 at the bottom of the upper anti-tension plate 6 to extend into the engagement groove 10. At this time, the buckle 9 will press the compression block 12. The compression block 12 will push the locking block 11 under pressure. The locking block 11 will slide on the inner wall of the engagement groove 10 and press the telescopic spring 13. When the buckle 9 is at the bottom of the compression block 12, the telescopic spring 13 will release its own elasticity and push the locking block 11. 1. The locking block 11 pushes the squeezing block 12, which then engages with the top of the buckle 9. When the buckle 9 extends into the engaging groove 10, the stabilizing block 15 also enters the stabilizing groove 16, thereby reinforcing the connection between the upper anti-pull plate 6 and the lower anti-pull plate 7. At this time, the protective sleeves 19 on the upper anti-pull plate 6 and the lower anti-pull plate 7 merge together to wrap around the wire harness body 2. Then, the strong Velcro 20 is attached to the adhesive area 21 to fix the protective sleeve 19 and prevent it from separating, thus allowing for quick installation. The pull plate 7 is located between the tensile ring 17 and the tensile plate 18. When maintenance personnel repair vehicles, they will handle and disassemble internal parts, which may cause them to touch and pull the wiring harness body 2. When pulling the wiring harness body 2, the maintenance personnel will first come into contact with the protective sleeve 19. The force of pulling the protective sleeve 19 will pull the upper tensile plate 6 and the lower tensile plate 7. When the upper tensile plate 6 and the lower tensile plate 7 are pulled, they will come into contact with the inner wall of the tensile plate 18 and transfer the pulling force to the inside of the tensile plate 18, thereby protecting the wiring harness wrapped inside the protective sleeve 19 and providing tensile resistance. In the mechanism, when the protective sleeve 19 is pulled during maintenance, the protective sleeve 19 will cause the upper anti-pull plate 6 and the lower anti-pull plate 7 to move and come into contact with the inner wall of the anti-pull plate 18, thereby effectively protecting the connection between the charging socket 1 and the wire harness body 2. This solves the problem that the connection is prone to loosening or damage, which affects the stability and safety of current transmission. The tension generated during the transmission of the upper anti-pull plate 6 and the lower anti-pull plate 7 does not act directly on the connection, but is dispersed to the interior of the anti-pull plate 18 through the structural layers. This dispersion effect effectively reduces the direct impact on the connection points, thereby protecting the internal wiring harness body 2 and improving the overall connection stability. Even if maintenance personnel apply external force to the wiring harness during routine maintenance, it will not directly affect the integrity of the connection points. This design greatly reduces the risk of failure and improves the safety and reliability of electric bus charging. At the same time, the buckle 9 on the anti-tensile upper anti-pull plate 6 engages with the engagement groove 10, and the strong Velcro 20 on the protective sleeve 19 is pasted on the pasting area 21, allowing for quick installation and use, saving installation time.

[0029] Further, see attached document. Figure 6As shown, a push block 14 is fixedly connected to the side wall of the locking block 11. The push block 14 passes through the outer wall of the lower anti-pull plate 7 and is slidably disposed on the lower anti-pull plate 7. An anti-slip pad is fixedly connected to the side wall of the push block 14. The anti-slip pad increases the friction between the finger and the push block 14, which will push the locking block 11 through the push block 14, thus making it detachable.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0031] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-voltage wiring harness for a DC charging socket for a bus, comprising a charging socket (1), wherein a plurality of uniformly distributed wiring harness bodies (2) are fixedly connected to the side wall of the charging socket (1), and a battery connector (3) is fixedly connected to one end of each wiring harness body (2), and a corrugated tube (4) is sleeved on the outside of each wiring harness body (2), characterized in that: The corrugated pipe (4) is fixedly connected to both ends of the corrugated pipe (4) and the outer wall of the wire harness body (2). An anti-stretching mechanism is provided between the charging socket (1) and the side wall of the wire harness body (2) to prevent the wire harness body (2) from being overstretched.

2. The high-voltage wiring harness of a DC charging socket for a bus according to claim 1, characterized in that, The tensile resistance mechanism includes an upper anti-tension plate (6) and a lower anti-tension plate (7). The upper anti-tension plate (6) and the lower anti-tension plate (7) are both semi-circular in shape and are arranged opposite each other. The side walls of the upper anti-tension plate (6) and the lower anti-tension plate (7) are fixedly connected with protective sleeves (19). The side walls of the upper anti-tension plate (6) and the lower anti-tension plate (7) are provided with multiple anti-wire grooves (8) for the wire harness body (2) to pass through. The bottom two sides of the upper anti-tension plate (6) are fixedly connected with opposite buckles (9). The top two sides of the lower anti-tension plate (7) are provided with locking grooves (10). The side walls of the locking grooves (10) are slidably connected with locking blocks (11). The side walls of the locking blocks (11) are fixedly connected with pressing blocks (12). The side of the locking blocks (11) away from the pressing blocks (12) is fixedly connected with a telescopic spring (13). One end of the telescopic spring (13) is fixedly connected to the inner wall of the locking groove (10).

3. The high-voltage wiring harness of a DC charging socket for a bus according to claim 2, characterized in that, The upper anti-pull plate (6) has a stabilizing block (15) fixedly connected to the side wall near the buckle (9) on both sides of the bottom. The lower anti-pull plate (7) has a stabilizing groove (16) on the side wall near the locking groove (10) on both sides of the top. The outer wall of the stabilizing block (15) and the inner wall of the stabilizing groove (16) are compatible.

4. The high-voltage wiring harness of a DC charging socket for a bus according to claim 2, characterized in that, The outer wall of the wire harness body (2) near the charging socket (1) is fixedly connected with a tensile ring (17). The tensile ring (17) is circular in shape and contacts the side wall of the upper tensile plate (6) and the lower tensile plate (7).

5. The high-voltage wiring harness of a DC charging socket for a bus according to claim 2, characterized in that, The charging socket (1) has two anti-tensile plates (18) fixedly connected to each other on the side near the wire harness body (2). The anti-tensile plate (18) is L-shaped, and the inner wall of the anti-tensile plate (18) is in contact with the side walls of the upper anti-tensile plate (6) and the lower anti-tensile plate (7).

6. The high-voltage wiring harness of a DC charging socket for a bus according to claim 2, characterized in that, The side wall of the card block (11) is fixedly connected to a push block (14), and the side wall of the push block (14) is fixedly connected to an anti-slip pad.

7. The high-voltage wiring harness of a DC charging socket for a bus according to claim 2, characterized in that, The outer wall of the protective sleeve (19) on the side wall of the upper anti-pull plate (6) is fixedly connected with a strong Velcro (20), and the outer wall of the protective sleeve (19) on the side wall of the lower anti-pull plate (7) is fixedly connected with an adhesive area (21).

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