Wire harness arrangement structure, wire harness arrangement method, and vehicle

Abstract

The invention discloses a wire harness arrangement structure, a wire harness arrangement method and a vehicle. The wire harness arrangement structure comprises a connecting assembly and a telescopic assembly. The connecting assembly comprises a first connecting piece, a second connecting piece and a third connecting piece, the first connecting piece is hollow to form a first wire passing cavity, the second connecting piece is hollow to form a second wire passing cavity, and the third connecting piece is hollow to form a third wire passing cavity; the telescopic assembly comprises a first telescopic pipe and a second telescopic pipe, the first telescopic pipe and the second telescopic pipe are made of waterproof materials, the first telescopic pipe is hollow to form a first protection cavity, the second telescopic pipe is hollow to form a second protection cavity, and the two ends of the first telescopic pipe are connected with the first connecting piece and the second connecting piece respectively. The two ends of the first protection cavity communicate with the first wire passing cavity and the second wire passing cavity correspondingly, the two ends of the second telescopic pipe are connected with the second connecting piece and the third connecting piece correspondingly, and the two ends of the second protection cavity communicate with the second wire passing cavity and the third wire passing cavity correspondingly. The problem of water accumulation around the wire harness can be avoided.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to wiring harness arrangement structures, wiring harness arrangement methods, and vehicles. Background Technology

[0002] The interior of vehicle doors houses numerous electrical devices, especially the front doors on both sides of minibuses. These devices include turn signals, window regulator motors, and window regulator switches. Normal operation of these devices requires power supply, grounding, and signal transmission to form complete electrical circuits. These circuits are achieved through wiring harnesses. The wiring harnesses supplying power to the electrical devices at the doors typically draw power from the instrument panel wiring harness or the body wiring harness connection point in the driver's cab, passing through the inner and outer sheet metal of the driver's cab side panel, and finally through the door sheet metal before entering the door interior and connecting to the electrical devices.

[0003] Because power needs to be drawn from the driver's compartment, the wiring harness connecting to the electrical equipment inside the door needs to pass through a side panel opening in the cab, through the sheet metal cavity, and be exposed outside the vehicle. It then dynamically connects to the door through the door opening area and enters the door interior through a door sheet metal opening. Due to the relatively complex wiring harness path and its passage through sheet metal openings, protection is generally required at these points. The conventional approach is to use a rubber sleeve to protect the wiring harness as it passes through the side panel opening in the cab. Where the bare wiring harness enters the side panel cavity directly, and where it exits from the side panel and enters the door sheet metal opening area, double-layered rubber components are used for protection. When the side panel cavity is located in a wet area, water can easily enter through this point and follow the wiring harness guide, entering the rubber components within the door opening area and preventing water drainage. When the temperature drops, water can easily accumulate and freeze, causing the wiring harness to freeze and harden. This can damage the wiring harness when the car door is opened or closed, leading to poor wiring transmission and electrical malfunction at the door. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a wiring harness arrangement structure, a wiring harness arrangement method, and a vehicle.

[0005] The solution to the technical problem of this invention is: Firstly, a wiring harness arrangement structure is proposed for use in a vehicle having a body and doors. The body has an inner side panel and an outer side panel, the outer side panel being located outside the inner side panel. The doors have door panels. The wiring harness arrangement structure includes: The connecting assembly includes a first connector, a second connector, and a third connector. The first connector is used to connect the inner sheet metal of the side wall, the second connector is used to connect the outer sheet metal of the side wall, and the third connector is used to connect the door sheet metal. The first connector is hollow to form a first wire-passing cavity, the second connector is hollow to form a second wire-passing cavity, and the third connector is hollow to form a third wire-passing cavity. A telescopic assembly includes a first telescopic tube and a second telescopic tube, both made of waterproof material. The first telescopic tube is hollow, forming a first protective cavity, and the second telescopic tube is hollow, forming a second protective cavity. The two ends of the first telescopic tube are respectively connected to the first connector and the second connector. The two ends of the first protective cavity are respectively connected to the first wire passage cavity and the second wire passage cavity. The two ends of the second telescopic tube are respectively connected to the second connector and the third connector. The two ends of the second protective cavity are respectively connected to the second wire passage cavity and the third wire passage cavity.

[0006] The present invention has at least the following beneficial effects: In use, the wiring harness passes through the first wiring cavity, the first protective cavity, the second wiring cavity, the second protective cavity, and the third wiring cavity. Because the wiring harness within the side panel sheet metal cavity is protected by the first telescopic tube, and the two ends of the first protective cavity are respectively connected to a waterproof first connector and a waterproof second connector, even when the side panel sheet metal cavity is in a wet area, water cannot contact the wiring harness, avoiding the problem of water accumulation around the wiring harness. This prevents water from freezing and hardening the wiring harness in low-temperature environments, avoiding damage caused by hardening of the wiring harness when opening and closing the car door, increasing the service life of the wiring harness, and ensuring normal power supply to the electrical equipment inside the car door. Because the second telescopic tube protects the wiring harness in the dynamic area of ​​the car door opening and closing, it prevents water accumulation around the wiring harness when the dynamic area of ​​the car door opening and closing is in a wet area, preventing the wiring harness in this location from freezing and hardening in low-temperature environments. This avoids damage caused by hardening of the wiring harness when opening and closing the car door, increasing the service life of the wiring harness, and ensuring normal power supply to the electrical equipment inside the car door.

[0007] As a further improvement to the above technical solution, the wire harness arrangement structure further includes: A guiding assembly includes a first guiding tube and a second guiding tube. The first guiding tube is hollow to form a first guiding cavity, and the second guiding tube is hollow to form a second guiding cavity. The two ends of the first guiding tube are respectively connected to a second connecting member and a first telescopic tube. The first protective cavity is connected to a second wire passage cavity through the first guiding cavity. The two ends of the second guiding tube are respectively connected to the second connecting member and the second telescopic tube. The second protective cavity is connected to the second wire passage cavity through the second guiding cavity.

[0008] As a further improvement to the above technical solution, the first guide tube is inclined upward from the second connector toward the first telescopic tube, and the second guide tube is inclined downward from the second connector toward the second telescopic tube.

[0009] As a further improvement to the above technical solution, the outer periphery of the first connector, the second connector, and the third connector are respectively provided with slots, and the inner sheet metal of the side wall, the outer sheet metal of the side wall, and the sheet metal of the door are respectively provided with wire passages. The first connector passes through the wire passage of the inner sheet metal of the side wall, and the edge of the wire passage of the inner sheet metal of the side wall is engaged with the slot of the first connector. The second connector passes through the wire passage of the outer sheet metal of the side wall, and the edge of the wire passage of the outer sheet metal of the side wall is engaged with the slot of the second connector. The third connector passes through the wire passage of the door sheet metal, and the edge of the wire passage of the door sheet metal is engaged with the slot of the third connector.

[0010] As a further improvement to the above technical solution, the first connector, the second connector and the third connector respectively include a sealing part and an insertion part, the slot is located between the sealing part and the insertion part, and the outer diameter of the insertion part gradually decreases from the end closer to the slot to the end farther away from the slot.

[0011] As a further improvement to the above technical solution, the outer diameter of the sealing part is larger than the outer diameter of the end of the insertion part near the slot.

[0012] As a further improvement to the above technical solution, the sealing part of the first connector is connected to the first telescopic tube, the insertion part of the second connector is connected to the first telescopic tube, the sealing part of the second connector is connected to the second telescopic tube, and the sealing part of the third connector is connected to the second telescopic tube.

[0013] As a further improvement to the above technical solution, the first connector, the second connector and the third connector are all made of rubber material.

[0014] Secondly, a wire harness arrangement method is proposed, which arranges the wire harness using the wire harness arrangement structure as described in any of the technical solutions in the first aspect, the wire harness arrangement method comprising the following steps: Cutting openings are made on the inner side panel, outer side panel, and door panel of the vehicle. The first connector is installed on the inner sheet metal of the side panel and covers the wiring opening of the inner sheet metal of the side panel. The second connector is installed on the outer sheet metal of the side panel and covers the wiring opening of the outer sheet metal of the side panel. The third connector is installed on the door sheet metal and covers the wiring opening of the door sheet metal. The wire harness is passed through the first wire passage cavity, the first protective cavity, the second wire passage cavity, the second protective cavity, and the third wire passage cavity in sequence.

[0015] Thirdly, a vehicle is proposed, including a wiring harness and a wiring harness arrangement structure as described in any of the technical solutions in the first aspect, wherein the wiring harness passes sequentially through the first wire passage cavity, the first protective cavity, the second wire passage cavity, the second protective cavity, and the third wire passage cavity.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of the present invention, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the wire harness arrangement structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the second connector according to an embodiment of the present invention; Figure 3 This is a flowchart of a wire harness arrangement method according to an embodiment of the present invention.

[0019] Reference numerals: 100, first connector; 200, second connector; 210, slot; 220, sealing part; 230, insertion part; 300, third connector; 400, first telescopic tube; 500, second telescopic tube; 600, first guide tube; 700, second guide tube. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this invention, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0022] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0024] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. The various technical features of the present invention can be combined interactively without contradicting each other.

[0025] Reference Figure 1 and Figure 2 In a first aspect, embodiments of the present invention propose a wiring harness arrangement structure applicable to vehicles with a body and doors, particularly suitable for minibuses, providing protection for the power supply wiring harness arrangement of electrical equipment at the left and right front doors of the minibus. The body includes inner and outer side panel sheet metal, which together form a side panel sheet metal cavity. The outer side panel sheet metal is located on the outside of the inner side panel sheet metal, and the doors are provided with door sheet metal.

[0026] The wiring harness arrangement structure includes a connecting assembly and a telescopic assembly. The connecting assembly includes a first connector 100, a second connector 200, and a third connector 300, all made of waterproof material. The first connector 100 connects to the inner sheet metal of the side panel, the second connector 200 connects to the outer sheet metal of the side panel, and the third connector 300 connects to the door sheet metal. The first connector 100 is hollow, forming a first wiring cavity; the second connector 200 is hollow, forming a second wiring cavity; and the third connector 300 is hollow, forming a third wiring cavity. The telescopic assembly includes a first telescopic tube 400 and a second telescopic tube 500, both made of waterproof material. The first telescopic tube 400 is hollow, forming a first protective cavity. Both ends of the first telescopic tube 400 are connected to the first connector 100 and the second connector 200, respectively. The two ends of the first protective cavity are connected to the first wiring cavity and the second wiring cavity, respectively. The second telescopic tube 500 is hollow to form a second protective cavity. The two ends of the second telescopic tube 500 are respectively connected to the second connector 200 and the third connector 300. The two ends of the second protective cavity are respectively connected to the second wire passage cavity and the third wire passage cavity.

[0027] In use, the wiring harness passes through the first wiring cavity, the first protective cavity, the second wiring cavity, the second protective cavity, and the third wiring cavity. Because the wiring harness within the side panel sheet metal cavity is protected by the first telescopic tube 400, and the two ends of the first protective cavity are respectively connected to the waterproof first connector 100 and the second connector 200, even when the side panel sheet metal cavity is in a wet area, water cannot come into contact with the wiring harness, avoiding the problem of water accumulation around the wiring harness. This prevents water from freezing and hardening the wiring harness in low-temperature environments, avoiding damage caused by hardening of the wiring harness when opening and closing the door, thus extending the service life of the wiring harness and ensuring normal power supply to the electrical equipment inside the door. Because the second telescopic tube 500 protects the wiring harness in the door opening and closing dynamic area, it prevents water accumulation around the wiring harness when the door opening and closing dynamic area is in a wet area, preventing the wiring harness in this location from freezing and hardening in low-temperature environments. This also prevents damage caused by hardening of the wiring harness when opening and closing the door, extending the service life of the wiring harness and ensuring normal power supply to the electrical equipment inside the door.

[0028] The embodiments of the present invention can not only cooperate with the wiring harness routing of vehicle doors, but also provide a waterproof effect for wiring harnesses in wet areas by uniformly protecting the side panel cavities between the inner and outer side panel of the cab and the dynamic area of ​​door opening and closing, thus providing an optimized solution for the routing of wiring harnesses through the vehicle doors.

[0029] It is understandable that the first telescopic tube 400 and the second telescopic tube 500 have a certain telescopic stroke and will not interfere with the opening and closing of the car door.

[0030] In some embodiments, the wire harness arrangement structure further includes a guiding component, which includes a first guiding tube 600 and a second guiding tube 700, capable of guiding the wire harness. The first guiding tube 600 is hollow, forming a first guiding cavity. The two ends of the first guiding tube 600 are respectively connected to a second connector 200 and a first telescopic tube 400. The two ends of the first guiding cavity are respectively connected to a first protective cavity and a second wire-passing cavity. The second guiding tube 700 is hollow, forming a second guiding cavity. The two ends of the second guiding tube 700 are respectively connected to a second connector 200 and a second telescopic tube 500. The two ends of the second protective cavity are respectively connected to the second guiding cavity and the second wire-passing cavity.

[0031] This design restricts the routing of wiring harnesses that pass through the outer sheet metal of the side panel, preventing the opening and closing of the door from affecting the connection between the second connector 200 and the outer sheet metal of the side panel, thus ensuring the protection of the wiring harness.

[0032] In some embodiments, the first guide tube 600 is inclined upward from the end connected to the second connector 200 towards the end connected to the first telescopic tube 400, and the second guide tube 700 is inclined downward from the end connected to the second connector 200 towards the end connected to the second telescopic tube 500. This arrangement ensures that the wiring harness runs downward from the cab to the door, aligning with the wiring harness's direction and preventing water from seeping into the cab along the wiring harness arrangement.

[0033] It is understandable that both the first guide tube 600 and the second guide tube 700 are made of waterproof materials.

[0034] In some embodiments, the outer periphery of the first connector 100, the second connector 200, and the third connector 300 are respectively provided with a slot 210, which is annular. Taking the second connector 200 as an example... Figure 2 The structures of the first connector 100 and the third connector 300 are similar to those of the second connector 200. It is understood that wiring openings are provided on the inner side panel, the outer side panel, and the door panel. The first connector 100 passes through the wiring opening in the inner side panel, and the edge of the wiring opening in the inner side panel is engaged with the slot 210 of the first connector 100. The second connector 200 passes through the wiring opening in the outer side panel, and the edge of the wiring opening in the outer side panel is engaged with the slot 210 of the second connector 200. The third connector 300 passes through the wiring opening in the door panel, and the edge of the wiring opening in the door panel is engaged with the slot 210 of the third connector 300.

[0035] By sealing the edge of the wire passage through the groove wall of the slot 210, water can be prevented from seeping in through the wire passage. In addition, it can effectively connect the first connector 100 to the inner sheet metal of the side panel, the second connector 200 to the outer sheet metal of the side panel, and the third connector 300 to the door sheet metal, thereby fixing the wire harness layout structure on the vehicle.

[0036] In some embodiments, the first connector 100, the second connector 200, and the third connector 300 each include a sealing portion 220 and an insertion portion 230. A slot 210 is disposed between the sealing portion 220 and the insertion portion 230, and the outer diameter of the insertion portion 230 gradually decreases from the end near the slot 210 to the end away from the slot 210.

[0037] With this configuration, the funnel-shaped structure of the insertion part 230 makes it easy to insert the connector into the corresponding wire passage. This is more conducive to the first connector 100 passing through the wire passage of the inner sheet metal of the side panel, the second connector 200 passing through the wire passage of the outer sheet metal of the side panel, and the third connector 300 passing through the wire passage of the door sheet metal.

[0038] In some embodiments, the outer diameter of the sealing portion 220 is larger than the outer diameter of the insertion portion 230 near the end of the slot 210. With this configuration, when the edge of the corresponding wire passage is engaged in the slot 210, the sealing portion 220 can further seal the edge of the wire passage, further preventing water leakage, and also further improving the installation stability of the connector.

[0039] In some embodiments, the sealing portion 220 of the first connector 100 is connected to the first telescopic tube 400, the insertion portion 230 of the second connector 200 is connected to the first telescopic tube 400, the sealing portion 220 of the second connector 200 is connected to the second telescopic tube 500, and the sealing portion 220 of the third connector 300 is connected to the second telescopic tube 500. This arrangement is more conducive to the installation of the wiring harness arrangement structure on the vehicle body and doors.

[0040] In some embodiments, the first connector 100, the second connector 200, and the third connector 300 are all made of rubber material, i.e., they are rubber material components, which have good sealing performance, achieve the effect of preventing water from entering, and have a certain degree of elasticity, which can undergo elastic deformation, making it more convenient for the installation of the first connector 100, the second connector 200, and the third connector 300.

[0041] The wiring harness arrangement structure of this embodiment provides full-path protection for the wiring harness between the door and the body, offering a relatively independent waterproof environment for this section of the harness. When in a wet area, water cannot flow into the wiring harness arrangement structure, thus achieving waterproofing and ensuring electrical transmission performance. It is understandable that if the sheet metal inside the side panel cavity has burrs or sharp edges, and if the wiring harness arrangement is relatively close to the sheet metal surface, the wiring harness arrangement structure of this embodiment protects the harness. Because it includes a first connector 100, a second connector 200, and a third connector 300 made of three layers of waterproof rubber, the wiring harness is arranged inside the first and second protective cavities, effectively preventing scratches and interference from sheet metal burrs or sharp edges, thus protecting the wiring harness.

[0042] Secondly, the present invention provides a wire harness arrangement method, which arranges the wire harness using the wire harness arrangement structure proposed in any of the embodiments of the first aspect. This method can effectively protect the wire harness, prevent water accumulation around the wire harness from freezing at low temperatures and causing the wire harness to harden, and improve the service life of the wire harness.

[0043] Specifically, the wiring harness arrangement method includes steps S101, S102, and S103, as described above. Figure 3 .

[0044] Step S101: Wiring openings are respectively made on the inner side panel sheet metal, outer side panel sheet metal, and door sheet metal of the vehicle. The wiring openings provide space for wiring harness routing and the installation of the wiring harness layout structure. It is understood that the wiring openings need to be made according to a preset layout path. In this embodiment, the wiring opening on the inner side panel sheet metal is positioned higher than the wiring opening on the outer side panel sheet metal, and the wiring opening on the outer side panel sheet metal is positioned higher than the wiring opening on the door sheet metal.

[0045] In step S102, the first connector 100 is installed on the inner sheet metal of the side panel and covers the wiring opening of the inner sheet metal; the second connector 200 is installed on the outer sheet metal of the side panel and covers the wiring opening of the outer sheet metal; and the third connector 300 is installed on the door sheet metal and covers the wiring opening of the door sheet metal. This securely installs the wiring harness arrangement structure on the vehicle, providing a relatively independent protective space for the wiring harness, thereby preventing water from accumulating around the wiring harness.

[0046] In step S103, the wire harness is sequentially passed through the first wire-passing cavity, the first protective cavity, the second wire-passing cavity, the second protective cavity, and the third wire-passing cavity. It is understood that step S102 can be completed before step S103, or vice versa. The wire harness is housed within the wire harness arrangement structure, which prevents water accumulation and freezing that could cause the wire harness to harden, thereby improving its lifespan.

[0047] It is understandable that, since this wiring harness arrangement method uses the above-mentioned wiring harness arrangement structure to arrange the wiring harness, the wiring harness arrangement method also has all the beneficial effects brought by the above-mentioned wiring harness arrangement structure, which will not be elaborated here.

[0048] Thirdly, embodiments of the present invention also provide a vehicle comprising a wiring harness and a wiring harness arrangement structure as proposed in any embodiment of the first aspect, wherein the wiring harness sequentially passes through a first wire passage cavity, a first protective cavity, a second wire passage cavity, a second protective cavity, and a third wire passage cavity of the wiring harness arrangement structure.

[0049] The vehicle can be a private car, such as a sedan, SUV, MPV, or pickup truck. It can also be a commercial vehicle, such as a van, bus, small truck, or large trailer. The vehicle must have an electric motor capable of outputting power or acting as a generator to store mechanical energy. When the vehicle is a new energy vehicle, it can be a hybrid or a pure electric vehicle. In some embodiments, the vehicle is a minibus.

[0050] Since the vehicle uses the above-mentioned wiring harness arrangement structure to protect the wiring harness, the vehicle also has all the beneficial effects brought by the above-mentioned wiring harness arrangement structure, which will not be elaborated here.

[0051] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A wire harness arrangement structure, characterized in that, Applied to vehicles having a body and doors, the body has inner side panel and outer side panel, the outer side panel being located outside the inner side panel, and the doors have door panel. The wiring harness arrangement structure includes: The connecting assembly includes a first connector, a second connector, and a third connector. The first connector is used to connect the inner sheet metal of the side wall, the second connector is used to connect the outer sheet metal of the side wall, and the third connector is used to connect the door sheet metal. The first connector is hollow to form a first wire-passing cavity, the second connector is hollow to form a second wire-passing cavity, and the third connector is hollow to form a third wire-passing cavity. A telescopic assembly includes a first telescopic tube and a second telescopic tube, both made of waterproof material. The first telescopic tube is hollow, forming a first protective cavity, and the second telescopic tube is hollow, forming a second protective cavity. The two ends of the first telescopic tube are respectively connected to the first connector and the second connector. The two ends of the first protective cavity are respectively connected to the first wire passage cavity and the second wire passage cavity. The two ends of the second telescopic tube are respectively connected to the second connector and the third connector. The two ends of the second protective cavity are respectively connected to the second wire passage cavity and the third wire passage cavity.

2. The wire harness arrangement structure according to claim 1, characterized in that, The wire harness arrangement structure also includes: A guiding assembly includes a first guiding tube and a second guiding tube. The first guiding tube is hollow to form a first guiding cavity, and the second guiding tube is hollow to form a second guiding cavity. The two ends of the first guiding tube are respectively connected to a second connecting member and a first telescopic tube. The first protective cavity is connected to a second wire passage cavity through the first guiding cavity. The two ends of the second guiding tube are respectively connected to the second connecting member and the second telescopic tube. The second protective cavity is connected to the second wire passage cavity through the second guiding cavity.

3. The wire harness arrangement structure according to claim 2, characterized in that, The first guide tube is inclined upward from the second connector toward the first telescopic tube, and the second guide tube is inclined downward from the second connector toward the second telescopic tube.

4. The wire harness arrangement structure according to claim 1, characterized in that, The outer periphery of the first connector, the second connector, and the third connector is respectively provided with a slot. The inner sheet metal of the side wall, the outer sheet metal of the side wall, and the sheet metal of the door are respectively provided with a wire passage. The first connector passes through the wire passage of the inner sheet metal of the side wall, and the edge of the wire passage of the inner sheet metal of the side wall is engaged with the slot of the first connector. The second connector passes through the wire passage of the outer sheet metal of the side wall, and the edge of the wire passage of the outer sheet metal of the side wall is engaged with the slot of the second connector. The third connector passes through the wire passage of the door sheet metal, and the edge of the wire passage of the door sheet metal is engaged with the slot of the third connector.

5. The wire harness arrangement structure according to claim 4, characterized in that, The first connector, the second connector, and the third connector each include a sealing part and an insertion part. The slot is located between the sealing part and the insertion part. The outer diameter of the insertion part gradually decreases from the end closer to the slot to the end farther away from the slot.

6. The wire harness arrangement structure according to claim 5, characterized in that, The outer diameter of the sealing part is larger than the outer diameter of the end of the insertion part near the slot.

7. The wire harness arrangement structure according to claim 5, characterized in that, The sealing part of the first connector is connected to the first telescopic tube, the insertion part of the second connector is connected to the first telescopic tube, the sealing part of the second connector is connected to the second telescopic tube, and the sealing part of the third connector is connected to the second telescopic tube.

8. The wire harness arrangement structure according to claim 1, characterized in that, The first connector, the second connector, and the third connector are all made of rubber material.

9. A method for arranging wire harnesses, characterized in that, The wire harness is arranged using the wire harness arrangement structure as described in any one of claims 1 to 8, and the wire harness arrangement method includes the following steps: The wiring openings are respectively made on the inner side panel, outer side panel, and door panel of the vehicle. The first connector is installed on the inner sheet metal of the side panel and covers the wiring opening of the inner sheet metal of the side panel. The second connector is installed on the outer sheet metal of the side panel and covers the wiring opening of the outer sheet metal of the side panel. The third connector is installed on the door sheet metal and covers the wiring opening of the door sheet metal. The wire harness is passed through the first wire passage cavity, the first protective cavity, the second wire passage cavity, the second protective cavity, and the third wire passage cavity in sequence.

10. A vehicle, characterized in that, Includes a wire harness and a wire harness arrangement structure as described in any one of claims 1 to 8, wherein the wire harness passes sequentially through the first wire passage cavity, the first protective cavity, the second wire passage cavity, the second protective cavity, and the third wire passage cavity.

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