Engine wire harness assembly

Abstract

An engine wire harness assembly relates to the technical field of engines, a corrugated pipe comprises a closed corrugated pipe, and a wire harness comprises an engine wire harness; the lowest part of the closed corrugated pipe is connected and communicated with a main wire harness corrugated pipe which is vertically arranged, and the bottom end of the main wire harness corrugated pipe is connected and communicated with a drainage device; the drainage device comprises a drainage body, the drainage body comprises a main wire harness connecting port and a drainage port, the drainage port is vertically formed in the bottom end of the drainage body, and a flow guide structure is arranged in an inner cavity of the drainage body; the flow guide structure comprises two flow guide plates arranged up and down in the vertical direction, the two flow guide plates are arranged on the two sides of the inner cavity of the drainage body in the X direction respectively, and the two flow guide plates are arranged downwards in an inclined mode and are opposite in inclined direction. It is guaranteed that water is accumulated at the lowest position of the wire harness in the water inlet process of the wire harness; and meanwhile, accumulated water or accumulated liquid can be smoothly discharged, and the working safety and reliability of the engine wire harness assembly are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an engine wiring harness assembly. Background Art

[0002] Power or signal transmission is required between the various components of the engine's electronic control system, which are usually connected by wiring harnesses. To facilitate the arrangement and storage of these wiring harnesses, corrugated tubes are often installed outside the wiring harness to form a wiring harness assembly.

[0003] When the engine wiring harness assembly is actually arranged, because the wiring harness needs to be connected to related components such as sensors, it is inevitable that there will be interfaces. The wiring harness assembly usually has gaps at the interfaces. In this way, during the cleaning and normal use of the engine wiring harness assembly, external water can easily enter the bellows through these gaps.

[0004] Therefore, the existing engine wiring harness layout and structure have the following problems:

[0005] 1. The engine wiring harness is wrapped with a closed corrugated tube, but there is still a connection gap at the connector connection, which can easily lead to water ingress;

[0006] 2. The layout and direction of the existing engine wiring harness are likely to cause the water in the wiring harness to be unable to be discharged in time;

[0007] 3. The layout structure of the existing engine wiring harness is unreasonable, resulting in many locations where water accumulates in the wiring harness. The wiring harness at the accumulated water points needs to be shaken multiple times for drainage. This results in workers repeatedly dragging the wiring harness to drain water during workshop operations, which can easily cause faults such as false connection of the engine wiring harness connectors and extend the production cycle. Utility Model Content

[0008] In view of this, the technical problem to be solved by the present invention is: to provide an engine wiring harness assembly with an aesthetically pleasing appearance, which ensures that water accumulates at the lowest point of the wiring harness during water ingress; at the same time, it ensures that accumulated water or liquid is smoothly discharged, thereby ensuring the working safety and reliability of the engine wiring harness assembly.

[0009] In order to solve the above technical problems, the technical solution of the utility model is:

[0010] An engine wiring harness assembly includes a corrugated tube and a wiring harness passed through the corrugated tube, wherein the corrugated tube includes a closed-end corrugated tube, and the wiring harness includes an engine wiring harness passed through the closed-end corrugated tube; a vertically arranged main wiring harness corrugated tube is connected and passed through at the lowest point of the closed-end corrugated tube, and the bottom end of the main wiring harness corrugated tube is connected and passed through a drainage device;

[0011] The drainage device includes a drainage body, which includes a main wire harness connection port connected to the main wire harness corrugated pipe and a drainage port for draining the accumulated water in the closed corrugated pipe. The drainage port is vertically arranged at the bottom end of the drainage body. A diversion structure for one-way drainage and preventing water from entering is arranged in the inner cavity of the drainage body, and the diversion structure is arranged close to the drainage port.

[0012] The diversion structure includes two diversion plates arranged vertically up and down. The two diversion plates are respectively arranged on both sides of the inner cavity of the drainage body along the X direction. Both diversion plates are arranged in a downward inclined manner and the inclined directions are opposite. The two diversion plates divide the inner cavity of the drainage body vertically to form a drainage bend.

[0013] Preferably, both of the two diversion plates are inclined downward from one side of the drainage body to the other side along the Y direction.

[0014] Or, both of the two diversion plates are inclined downward from one side of the drainage body to the side close to its axis along the X direction.

[0015] Preferably, along the vertical direction, the side edge of the diversion plate coincides with the axis of the drainage device.

[0016] Or, along the vertical direction, the side edge of one diversion plate crosses the axis of the drainage device and overlaps with the plate surface of the other diversion plate.

[0017] Or, along the vertical direction, the side edges of both of the two diversion plates cross the axis of the drainage device.

[0018] Preferably, the drainage body includes two relatively arranged drainage half cylinders, and the two drainage half cylinders are buckled with each other to form the complete drainage body.

[0019] Along the Y direction, a connecting strip is arranged between two adjacent side edges of the two drainage half cylinders.

[0020] A plurality of buckle structures are arranged between the two drainage half cylinders, and the buckle structures are arranged along the Y direction on the side far from the connecting strip.

[0021] Preferably, a support plate is installed on the side wall of the drainage half cylinder.

[0022] Preferably, the drainage device includes a waterproof plug cover in a ring structure. The waterproof plug cover is sleeved outside the drainage port and has an interference fit with the drainage body.

[0023] Preferably, a limit protrusion adapted to the waterproof plug cover is arranged on the side wall of the drainage body.

[0024] Preferably, the drain body includes a branch wiring harness connection port connected to and communicating with the inner cavity of the drain body, and the branch wiring harness connection port is arranged on the side wall of the drain body and located between the main wiring harness connection port and the drain port.

[0025] Preferably, the inner wall of the main wiring harness connection port is provided with at least one circle of recesses or protrusions, and the connecting section of the main wiring harness corrugated tube is provided with at least one circle of protrusions or recesses, and the protrusions are embedded in the recesses.

[0026] Preferably, a vertically arranged three-way connector is provided between the main wiring harness corrugated pipe and the drainage device, the upper interface of the three-way connector is connected to the main wiring harness corrugated pipe, the lower interface of the three-way connector is connected to the drainage device, and the side interface of the three-way connector is connected to the branch wiring harness corrugated pipe arranged vertically and inclined upward.

[0027] After adopting the above technical solution, the beneficial effects of the utility model are:

[0028] Since the utility model includes a bellows and a wiring harness passed through the bellows, the bellows includes a closed bellows, and the wiring harness includes an engine wiring harness passed through the closed bellows; the lowest point of the closed bellows is connected to a vertically arranged main wiring harness bellows, and the bottom end of the main wiring harness bellows is connected to a drainage device; the main wiring harness bellows is connected to the lowest point of the closed bellows. When there is accumulated water or liquid in the closed bellows, it can flow to the main wiring harness bellows by itself. The main wiring harness bellows is vertically arranged and will not affect the flow of accumulated water. At the same time, the drainage device can discharge the accumulated water by itself, ensuring that there is no water accumulation in the bellows and extending its service life.

[0029] The drainage device includes a drainage body, which includes a main wiring harness connection port connected to the main wiring harness bellows and a drainage port for draining the accumulated water in the closed bellows. The drainage port is vertically arranged at the bottom end of the drainage body. The inner cavity of the drainage body is provided with a guide structure for one-way drainage and preventing water ingress. The guide structure is arranged close to the drainage port; the guide structure can discharge accumulated water or liquid, and at the same time can prevent external water from entering the main wiring harness bellows, ensuring that there is no water accumulation in the bellows of the engine wiring harness assembly, thereby ensuring the reliability and safety of the wiring harness operation.

[0030] The diversion structure includes two diversion plates arranged vertically up and down. The two diversion plates are respectively arranged on both sides of the inner cavity of the drainage body along the X direction. Both diversion plates are inclined downward and in opposite inclined directions. The two diversion plates divide the inner cavity of the drainage body vertically to form a drainage bend. Since both diversion plates are inclined downward, it does not affect the discharge of accumulated water. At the same time, since the two diversion plates are inclined in opposite directions, it does not affect the drainage speed of the accumulated water. The two diversion plates are arranged up and down and divide the inner cavity of the drainage body to form a drainage bend. Under normal use conditions, it can interfere with and block the external water entering the drainage body, prevent it from entering the interior of the drainage body, does not increase the hidden danger of water inflow, improves the water blocking effect, and realizes one-way drainage. Brief Description of the Drawings

[0031] The following further describes the present invention in conjunction with the drawings and embodiments.

[0032] Figure 1 It is a schematic structural diagram of the engine wiring harness assembly according to the embodiment of the present invention;

[0033] Figure 2 is Figure 1 a schematic structural diagram of the drainage device in

[0034] Figure 3 is Figure 2 an exploded view of

[0035] Figure 4 is Figure 2 a partial cross-sectional view of the drainage body in

[0036] Figure 5 is Figure 2 a cross-sectional view of

[0037] Figure 6 is Figure 5 a schematic structural diagram of another state of the diversion plate in

[0038] In the figure:

[0039] 1. Closed bellows; 11. Connector;

[0040] 2. Main wire harness bellows;

[0041] 3. Drainage device; 31. Drainage body; 311. Drainage semi-cylinder; 312. Connection strip; 313. Snap structure; 314. Limit protrusion; 32. Main wire harness connection port; 33. Drainage port; 34. Support plate; 35. Waterproof plug; 36. Branch wire harness connection port;

[0042] 4. Diversion structure; 41. Diversion plate;

[0043] 5. Three-way connector;

[0044] 6. Branch wiring harness corrugated tube;

[0045] The solid arrows in the figure represent the drainage flow direction. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0047] like Figures 1 to 6 As shown together, the present invention includes a bellows and a wiring harness passed through the bellows. The bellows includes a closed bellows 1, and the wiring harness includes an engine wiring harness (not shown) passed through the closed bellows 1. Using a bellows to wrap and protect a wiring harness is a well-known technique in the art. The engine wiring harness refers to the wiring harness that connects the engine to various sensors, ensuring normal communication and transmission of sensor signals by the ECU and accurate control of the engine's operating state. The closed bellows is a pipe with a corrugated structure, both ends of which are closed.

[0048] In the present application, the lowest point of the closed bellows 1 is connected to a vertically arranged main wiring harness bellows 2, and the bottom end of the main wiring harness bellows 2 is connected to a drainage device 3; the main wiring harness bellows 2 is connected to the lowest point of the closed bellows 1. When there is accumulated water or liquid in the closed bellows 1, it can flow to the main wiring harness bellows 2 by itself. The main wiring harness bellows 2 is arranged vertically and will not affect the flow of accumulated water. At the same time, the drainage device 3 can discharge the accumulated water by itself, ensuring that there is no water accumulation in the bellows and extending its service life.

[0049] The drainage device 3 includes a drainage body 31, which includes a main wiring harness connection port 32 connected to the main wiring harness bellows 2 and a drainage port 33 for draining the accumulated water in the closed bellows 1. The drainage port 33 is vertically arranged at the bottom end of the drainage body 31. The inner cavity of the drainage body 31 is provided with a guide structure 4 for one-way drainage and preventing water ingress. The guide structure 4 is arranged close to the drainage port 33; the guide structure 4 can discharge accumulated water or liquid, and at the same time can prevent external water from entering the main wiring harness bellows 2, ensuring that there is no water accumulation in the bellows of the engine wiring harness assembly, thereby ensuring the reliability and safety of the wiring harness operation.

[0050] The diversion structure 4 includes two diversion plates 41 arranged vertically up and down. The two diversion plates 41 are respectively arranged on both sides of the inner cavity of the drainage body 31 along the X direction. Both diversion plates 41 are arranged to slope downward with opposite sloping directions. The two diversion plates 41 divide the inner cavity of the drainage body 31 vertically to form a drainage bend. Since both diversion plates 41 are arranged to slope downward, it does not affect the discharge of accumulated water. At the same time, since the two diversion plates 41 have opposite sloping directions, it does not affect the drainage speed of the accumulated water. The two diversion plates 41 are arranged up and down and divide the inner cavity of the drainage body 31 to form a drainage bend. Under normal use conditions, it can interfere with and block the external water entering the drainage body 31, prevent it from entering the interior of the drainage body 31, does not increase the hidden danger of water inflow, improves the water blocking effect, and realizes one-way drainage.

[0051] As Figure 4 , Figure 5 collectively shown, in this application, both diversion plates 41 slope downward from one side of the drainage body 31 to the other side along the Y direction. Among them, the bottom end of the upper diversion plate 41 is close to the top end of the lower diversion plate 41, and the two diversion plates 41 have opposite sloping directions. Or, as Figure 6 shown, both diversion plates 41 slope downward from one side of the drainage body 31 to the side close to its axis along the X direction.

[0052] As Figures 4 to 6 collectively shown, vertically, the side edge of the diversion plate 41 coincides with the axis of the drainage device 3; or, vertically, the side edge of one diversion plate 41 crosses the axis of the drainage device 3 and overlaps with the plate surface of the other diversion plate 41; or, vertically, the side edges of both diversion plates 41 cross the axis of the drainage device 3. There is no gap between the two side edges of the two diversion plates 41 of the above structure vertically, which can ensure normal drainage and reverse water blocking.

[0053] In this application, the drainage body 31 includes two relatively arranged drainage half-cylinders 311. The two drainage half-cylinders 311 are buckled with each other to form a complete drainage body 31. Among them, along the Y direction, a connecting strip 312 is arranged between two adjacent side edges of the two drainage half-cylinders 311. A plurality of buckle structures 313 are arranged between the two drainage half-cylinders 311. The buckle structures 313 are arranged along the Y direction on the side far from the connecting strip 312. The buckle structures 313 buckle the two drainage half-cylinders 311 together and are adapted to the connecting strip 312 to fix the two drainage half-cylinders 311 together to form the drainage body 31, meeting the use requirements; and it is convenient for disassembly.

[0054] Among them, a support plate 34 is installed on the side wall of the drainage half-cylinder 311 to enhance the rigidity of the drainage half-cylinder 311.

[0055] The drainage device 3 includes a waterproof plug cover 35 with an annular structure. The waterproof plug cover 35 is sleeved outside the drainage port 33 and has an interference fit with the drainage body 31. The waterproof plug cover 35 can reduce the inner diameter of the drainage port 33 to enhance the blocking effect on external water, and is set in an annular shape without affecting the drainage effect. Preferably, a limiting protrusion 314 adapted to the waterproof plug cover 35 is provided on the side wall of the drainage body 31, which can enhance the connection strength between the drainage body 31 and the waterproof plug cover 35 and prevent it from falling off.

[0056] The drainage body 31 includes a branch wire harness connection port 36 that is connected and communicated with the inner cavity of the drainage body 31. The branch wire harness connection port 36 is provided on the side wall of the drainage body 31 and is located between the main wire harness connection port 32 and the drainage port 33. The branch wire harness connection port 36 expands the applicable range of the wire harness, and the branch wire harness in the wire harness can extend out through the branch wire harness connection port 36 to be connected with other connectors 11.

[0057] At least one circle of concave or convex parts is provided on the inner wall of the main wire harness connection port 32, and at least one circle of convex or concave parts is provided on the connection section of the main wire harness bellows 2. The convex part is clamped in the concave part. In practical applications, the concave-convex structure of the main wire harness bellows 2 can be utilized. For example, at least one circle of convex parts is provided at the connection end of the main wire harness bellows 2 and the main wire harness connection port 32. After the two are sleeved, the convex part of the main wire harness bellows 2 can be exactly clamped in a circle of concave parts at the connection end of the main wire harness connection port 32. Of course, at least one circle of concave parts can also be provided at the connection end of the main wire harness bellows 2. After the two are sleeved, the convex part of the main wire harness connection port 32 can be exactly clamped in the concave part of the main wire harness bellows 2.

[0058] In this application, a vertically arranged tee joint 5 is provided between the main wire harness bellows 2 and the drainage device 3. The upper interface of the tee joint 5 is communicated with the main wire harness bellows 2, the lower interface of the tee joint 5 is communicated with the drainage device 3, and the side interface of the tee joint 5 is communicated with a branch wire harness bellows 6 arranged obliquely upward in the vertical direction. The setting of the tee joint 5 further satisfies the branching and extension of the branch wire harness in the wire harness. Moreover, the branch wire harness bellows 6 is arranged obliquely upward in the vertical direction, which can ensure that the drainage does not branch, and all the accumulated water is discharged through the drainage device 3.

[0059] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Engine wiring harness assembly, comprising a corrugated pipe and a wiring harness disposed within the corrugated pipe, the corrugated pipe including a closed corrugated pipe, and the wiring harness including an engine wiring harness disposed within the closed corrugated pipe; characterized in that, At the lowest point of the closed bellows, a vertically arranged main wire harness bellows is connected and penetrated, and the bottom end of the main wire harness bellows is connected and penetrated with the drainage device; The drainage device includes a drainage body, the drainage body includes a main wire harness connection port connected to the main wire harness bellows and a drainage port for draining the accumulated water in the closed bellows. The drainage port is vertically arranged at the bottom end of the drainage body. A diversion structure for one-way drainage and preventing water from entering is arranged in the inner cavity of the drainage body, and the diversion structure is arranged close to the drainage port; The diversion structure includes two diversion plates arranged vertically up and down. The two diversion plates are respectively arranged on both sides of the inner cavity of the drainage body along the X direction. Both diversion plates are arranged to be inclined downward and the inclination directions are opposite. The two diversion plates divide the inner cavity of the drainage body into a drainage bend along the vertical direction.

2. The engine wiring harness assembly according to claim 1, characterized in that, Both of the two diversion plates are inclined downward from one side of the drainage body to the other side along the Y direction; Or, both of the two diversion plates are inclined downward from one side of the drainage body to the side close to its axis along the X direction.

3. The engine wiring harness assembly according to claim 1, wherein, Vertically, the side edge of the diversion plate coincides with the axis of the drainage device; Or, vertically, the side edge of one diversion plate crosses the axis of the drainage device and overlaps with the plate surface of the other diversion plate; Or, vertically, the side edges of both of the two diversion plates cross the axis of the drainage device.

4. The engine wiring harness assembly according to claim 1, characterized in that, The drainage body includes two relatively arranged drainage half cylinders, and the two drainage half cylinders are buckled with each other to form the complete drainage body; Along the Y direction, a connecting strip is arranged between two adjacent side edges of the two drainage half cylinders; A plurality of buckle structures are arranged between the two drainage half cylinders, and the buckle structures are arranged along the Y direction on the side far from the connecting strip.

5. The engine wiring harness assembly according to claim 4, characterized in that, A support plate is installed on the side wall of the drainage half cylinder.

6. The engine wiring harness assembly according to claim 1, characterized in that, The drainage device includes a waterproof plug cover in a ring structure, and the waterproof plug cover is sleeved outside the drainage port and is in interference fit with the drainage body.

7. The engine wiring harness assembly according to claim 6, wherein A limit protrusion adapted to the waterproof plug cover is arranged on the side wall of the drainage body.

8. The engine wiring harness assembly according to claim 1, characterized in that, The drainage body includes a branch wire harness connection port connected and penetrated with the inner cavity of the drainage body. The branch wire harness connection port is arranged on the side wall of the drainage body and is located between the main wire harness connection port and the drainage port.

9. The engine wiring harness assembly according to claim 1, characterized in that, At least one circle of concave parts or convex parts is arranged on the inner wall of the main wire harness connection port, and at least one circle of convex parts or concave parts is arranged on the connection section of the main wire harness bellows. The convex parts are clamped in the concave parts.

10. The engine wiring harness assembly according to claim 1, wherein, A vertically arranged three-way connector is arranged between the main wire harness bellows and the drainage device. The upper interface of the three-way connector is communicated with the main wire harness bellows, the lower interface of the three-way connector is communicated with the drainage device, and the side interface of the three-way connector is communicated with a branch wire harness bellows arranged obliquely upward along the vertical direction.

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