New energy automobile engine compartment wire harness junction box assembly

Abstract

A new energy automobile engine compartment wire harness junction box assembly disclosed by the present invention comprises at least one wire box body, the wire box body is in a tip-cone-free barrel shape, the inner wall of the bottom of the wire box body is fixedly connected with a segmentation straight cylinder, and the segmentation straight cylinder divides an inner cavity into a wire passing straight cavity and an annular cavity. A plurality of partition plates are fixedly connected between the outer wall of the partition straight cylinder and the inner side wall of the wire box body to divide the annular cavity into a plurality of wire storage cavities at equal intervals; a plurality of first wire pressing grooves corresponding to the wire storage cavities are formed in the side wall of the wire box body, and wire feeding holes and first wire clamping holes are formed in the first wire pressing grooves; the bottom of the wire box body is provided with a wire passing hole which is coaxial with the wire passing straight cavity, and the diameter distance of the wire passing hole is smaller than the diameter distance of the wire passing straight cavity. The multi-wire-harness multi-angle branching requirement of a new energy automobile is met, and redundant wire harnesses can be stored.

Description

Technical Field

[0001] The invention belongs to the technical field of junction boxes, and in particular relates to a wiring harness junction box assembly for an engine compartment of a new energy vehicle. Background Art

[0002] The engine compartment and the cab of a car are separated by sheet metal parts. There are a large number of wire harnesses in the engine compartment, especially for new energy vehicles, which have more wire harnesses. The wire harnesses need to be centrally arranged to ensure that the engine compartment is neat and tidy and will not be burned during driving. The engine compartment wiring harness junction box (also called junction box, junction box or wiring harness connector) plays an important role in the engine compartment of the car. It is mainly used to manage and protect the wires and harnesses in the engine compartment to ensure the stability and safety of the electrical system.

[0003] In the prior art, patent number: CN102593771A discloses a wiring harness distribution box assembly for an automobile engine compartment, including a protective box, a bracket and a clamping piece. A clamping slot is provided on the protective box, and a first wiring harness outlet, a second wiring harness outlet and a main harness inlet are provided at the edge of the protective box. A clamp is provided on the bracket, and a clamping piece mounting hole is provided in the middle of the bracket. The clamping piece is a two-way structure with a 90° channel, and the two ends of the channel are respectively a wiring harness inlet and a wiring harness outlet. One end of the clamping piece is inserted into the mounting hole of the bracket and clamped with the bracket. The bracket is clamped in the clamping slot of the protective box through the clamp, and the wiring harness inlet of the clamping piece faces the main harness inlet of the protective box.

[0004] The above-mentioned wiring harness junction box assembly has a large inner diameter of the wire, and although it can meet the routing of multi-branch wiring harnesses, it still cannot meet the multi-angle branching of multiple wiring harnesses and cannot be used for multi-wiring harness arrangement of new energy vehicles. Summary of the invention

[0005] The present invention aims at solving the problems in the prior art and proposes the following technical solutions:

[0006] A wiring harness junction box assembly for a new energy vehicle engine compartment includes at least one wire box body, the wire box body is in the shape of a topless cone barrel, and a split straight cylinder is fixedly connected to the bottom inner wall of the wire box body, the split straight cylinder divides the inner cavity into a straight cavity for passing wires and an annular cavity, and a plurality of partitions are fixedly connected between the outer wall of the split straight cylinder and the inner side wall of the wire box body to divide the annular cavity into a plurality of wire storage cavities at equal intervals; a plurality of first wire pressing grooves corresponding to the wire storage cavities are opened on the side wall of the wire box body, and a wire feeding hole and a first wire clamping hole are opened on the first wire pressing groove;

[0007] A threading hole coaxially arranged with the line-through straight cavity is provided at the bottom of the wire box body, and the diameter distance of the threading hole is smaller than the diameter distance of the line-through straight cavity.

[0008] As a preferred embodiment of the above technical solution, a fixing piece is fixedly connected to the outer side of the bottom of the wire box body.

[0009] As a preferred embodiment of the above technical solution, a second wire pressing groove is opened on the top upper edge of the split straight tube, and the second wire pressing groove corresponds to the first wire pressing groove one by one.

[0010] As a preferred embodiment of the above technical solution, a second wire clamping hole is processed at one end of the second wire pressing groove close to the wire threading hole.

[0011] As a preferred embodiment of the above technical solution, the corners of the first wire pressing groove, the wire feeding hole, the first wire clamping hole, the second wire pressing groove and the second wire clamping hole are all processed into rounded shapes.

[0012] As a preferred embodiment of the above technical solution, the automobile engine compartment includes a sheet metal part, on which a wire passing hole is opened, and the wire passing hole is opposite to the threading hole, and the sheet metal part is fixedly connected to a plurality of mounting blocks surrounding the periphery of the wire passing hole, and the mounting blocks and the fixing parts are adapted to each other.

[0013] The beneficial effects of the present invention are:

[0014] 1. When the wiring harness junction box assembly of the present invention is in use, the wiring harness passes through in the following order (here, the wiring harness passes from the cockpit into the engine compartment, and vice versa): the wiring harness passes through the cockpit straight cavity, passes through the external threaded tube and the internal threaded tube, enters the cockpit straight cavity and passes out. After the wiring harness passes through, the front section of the cockpit wiring harness is first clamped into the second wire clamping hole through the second wire pressing groove and fixed, and the rear section is clamped into the wire feeding hole through the first wire pressing groove and fixed. Similarly, the front and rear sections of the wiring harness on the engine side are respectively clamped into the second wire clamping hole and the wire feeding hole. The positioning and fixing of the front and rear sections can ensure the stable position of the wiring harness when the car is driving, and avoid damage caused by movement friction; in addition, the side walls of the wire box body and the split straight tube of the present invention are respectively provided with corresponding multiple wire feeding holes and multiple second wire clamping holes, so as to facilitate the multi-angle positioning and placement of multiple wiring harnesses, and meet the multi-wire harness and multi-angle wiring requirements of new energy vehicles;

[0015] 2. In order to ensure that the wire harness can connect both ends, the length setting of the wire harness often has redundant parts; in the present invention, a wire storage cavity is provided to accommodate redundant wire harnesses. Specific operation position: insert the inner section of the wire harness into the second wire clamping hole, and then pass the outer end of the wire harness into the wire feeding hole through the first wire pressing groove. The inner diameter of the wire feeding hole is larger than the first wire clamping hole and larger than the diameter of the wire harness. The wire harness in the wire feeding hole can be put into the wire storage cavity with the excess part, and finally inserted into the first wire clamping hole through the first wire pressing groove to be fixed. The wire storage cavity provided in the present invention is an independent cavity, and there will be no entanglement when multiple wire harnesses are put in and subsequently pulled out, which ensures the smoothness of subsequent wire use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a schematic diagram of the sheet metal structure in the engine compartment of a new energy vehicle in an embodiment;

[0017] Figure 2The three-dimensional structure schematic diagram of the wiring harness junction box assembly of the engine compartment of a new energy vehicle in the embodiment is shown;

[0018] Figure 3 The figure shows a schematic diagram of the structure of the center wire box of the wiring harness junction box assembly in the engine compartment of a new energy vehicle in an embodiment;

[0019] Figure 4 Shown is a schematic diagram of the internal structure of the center line box body of the wiring harness distribution box assembly in the engine compartment of a new energy vehicle in an embodiment.

[0020] In the figure: 10, wire box body; 21, external threaded cylinder; 22, internal threaded cylinder; 30, fixing piece; 41, first wire pressing groove; 42, wire feeding hole; 43, first wire clamping hole; 50, split straight cylinder; 51, second wire pressing groove; 52, second wire clamping hole; 60, partition; 70, wire storage cavity; 80, wire passing straight cavity; 90, sheet metal; 91, wire passing hole; 92, mounting block. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0022] Example

[0023] like Figure 1 As shown, the automobile engine compartment includes a sheet metal part 90, and a wire hole 91 is formed on the sheet metal part 90, and the wire hole 91 is directly opposite to the threading hole.

[0024] like Figure 2 As shown, the wiring harness junction box assembly of the engine compartment of a new energy vehicle includes at least one wiring box body 10. In this embodiment, two wiring box bodies 10 are included, one is installed in the engine compartment, and the other is installed in the cab, and the two wiring box bodies 10 are separated on both sides of the sheet metal part 90, respectively combing the wiring harnesses in the engine compartment and the cab; one of the wiring box bodies 10 is interconnected with an internal threaded barrel 22 on the outer side of the bottom, and the outer wall of the internal threaded barrel 22 matches the inner diameter of the wire passing hole 91, and the other wiring box body 10 is interconnected with an external threaded barrel 21 on the bottom, and the internal threaded barrel 22 is passed through the wire passing hole 91 and is threadedly connected with the external threaded barrel 21, so that the two wiring box bodies 10 are docked and installed on the sheet metal part 90.

[0025] like Figure 3-Figure 4 As shown, the wire box body 10 is in the shape of a topless cone barrel, and a plurality of first wire pressing grooves 41 corresponding to the wire storage cavity 70 are provided on the side wall of the wire box body 10, and a wire feeding hole 42 and a first wire clamping hole 43 are provided on the first wire pressing groove 41, and a second wire pressing groove 51 is provided on the top upper edge of the split straight tube 50, and the second wire pressing groove 51 corresponds to the first wire pressing groove 41 one by one, and a second wire clamping hole 52 is processed at one end of the second wire pressing groove 51 close to the threading hole.

[0026] When the wiring harness junction box assembly of this embodiment is in use, the wiring harness passes through in the following order (here, the wiring harness passes from the cockpit into the engine compartment, and vice versa): the wiring harness passes through the cockpit straight cavity 80, passes through the external threaded tube 21 and the internal threaded tube 22, enters the cockpit straight cavity 80 and passes out. After the wiring harness passes through, the front section of the cockpit wiring harness is first clamped into the second wire clamping hole 52 through the second wire pressing groove 51 and fixed, and the rear section is clamped into the wire feeding hole 42 through the first wire pressing groove 41 and fixed. Similarly, the front and rear sections of the engine side wiring harness are respectively clamped into the second wire clamping hole 52 and the wire feeding hole 42. The positioning and fixing of the front and rear sections can ensure the stable position of the wiring harness when the car is driving, and avoid damage caused by movement friction. In addition, the side walls of the center wire box body 10 and the dividing straight tube 50 of the present invention are respectively provided with corresponding multiple wire feeding holes 42 and multiple second wire clamping holes 52, which facilitates the multi-angle positioning and placement of multiple wiring harnesses and meets the multi-wiring harness and multi-angle wiring requirements of new energy vehicles.

[0027] A split straight cylinder 50 is fixedly connected to the inner wall of the bottom of the wire box body 10, and the split straight cylinder 50 divides the inner cavity into a straight cavity 80 for passing wires and an annular cavity. A plurality of partitions 60 are fixedly connected between the outer wall of the split straight cylinder 50 and the inner wall of the wire box body 10 to divide the annular cavity into a plurality of wire storage cavities 70 at equal intervals.

[0028] In order to ensure that the wire harness can connect both ends, the length of the wire harness is often set with redundant parts; in the present invention, a wire storage cavity 70 is provided to store redundant wire harnesses. Specific operation position: insert the inner section of the wire harness into the second wire clamping hole 52, and then pass the outer end of the wire harness into the wire feeding hole 42 through the first wire pressing groove 41. The inner diameter of the wire feeding hole 42 is larger than the first wire clamping hole 43 and larger than the diameter of the wire harness. The wire harness in the wire feeding hole 42 can be put into the wire storage cavity 70 with excess parts, and finally inserted into the first wire clamping hole 43 through the first wire pressing groove 41 for fixation. The wire storage cavity 70 provided in the present invention is an independent cavity, and there will be no entanglement when multiple wire harnesses are put in and subsequently pulled out, which ensures the smoothness of subsequent wire use.

[0029] A threading hole is provided at the bottom of the wire box body 10 and is coaxially arranged with the wire-through straight cavity 80 , and the diameter of the threading hole is smaller than the diameter of the wire-through straight cavity 80 .

[0030] The bottom outer side of the wire box body 10 is fixedly connected with a fixing member 30. The sheet metal part 90 is fixedly connected with a plurality of mounting blocks 92 surrounding the outer periphery of the wire hole 91, and the mounting blocks 92 and the fixing member 30 are adapted.

[0031] The corners of the first wire pressing groove 41, the wire feeding hole 42, the first wire clamping hole 43, the second wire pressing groove 51 and the second wire clamping hole 52 are all processed into rounded corners. The rounded corner design can prevent damage during the dragging of the wire harness.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. New energy vehicle engine compartment wiring harness junction box assembly, characterized in that: The invention comprises at least one wire box body (10), wherein the wire box body (10) is in the shape of a topless cone barrel, and a dividing straight cylinder (50) is fixedly connected to the inner wall of the bottom of the wire box body (10), wherein the dividing straight cylinder (50) divides the inner cavity into a wire-passing straight cavity (80) and an annular cavity, and a plurality of partitions (60) are fixedly connected between the outer wall of the dividing straight cylinder (50) and the inner wall of the wire box body (10) to divide the annular cavity into a plurality of wire storage cavities (70) at equal intervals; a plurality of first wire pressing grooves (41) corresponding to the wire storage cavities (70) are provided on the side wall of the wire box body (10), and a wire feeding hole (42) and a first wire clamping hole (43) are provided on the first wire pressing groove (41); The bottom of the wire box body (10) is provided with a wire threading hole coaxially arranged with the wire passing straight cavity (80), and the diameter distance of the wire threading hole is smaller than the diameter distance of the wire passing straight cavity (80).

2. The new energy vehicle engine compartment wiring harness junction box assembly according to claim 1 is characterized in that: A fixing piece (30) is fixedly connected to the outer side of the bottom of the wire box body (10).

3. The new energy vehicle engine compartment wiring harness junction box assembly according to claim 1 is characterized in that: A second wire pressing groove (51) is provided on the top edge of the split straight tube (50), and the second wire pressing groove (51) corresponds to the first wire pressing groove (41) one by one.

4. The new energy vehicle engine compartment wiring harness junction box assembly according to claim 3 is characterized in that: A second wire clamping hole (52) is processed at one end of the second wire pressing groove (51) close to the wire threading hole.

5. The new energy vehicle engine compartment wiring harness junction box assembly according to claim 4 is characterized in that: The corners of the first wire pressing groove (41), the wire feeding hole (42), the first wire clamping hole (43), the second wire pressing groove (51) and the second wire clamping hole (52) are all processed into rounded corners.

6. The new energy vehicle engine compartment wiring harness junction box assembly according to claim 2, characterized in that: The automobile engine compartment comprises a sheet metal part (90), a wire-passing hole (91) is provided on the sheet metal part (90), and the wire-passing hole (91) is directly opposite to the threading hole, and a plurality of mounting blocks (92) surrounding the outer periphery of the wire-passing hole (91) are fixedly connected to the sheet metal part (90), and the mounting blocks (92) and the fixing part (30) are adapted to each other.

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