Connection structure and vehicle

Abstract

The invention provides a connection structure and a vehicle, which can improve retaining performance and damping performance. A connection structure according to an embodiment includes: a holder having a first holding member having a plurality of grooves in which a plurality of wire harnesses are disposed, and a second holding member disposed facing the first holding member and closing the grooves; a connector connected to the plurality of wire harnesses; and a housing provided on the outer periphery of the holder and the connector.

Description

Technical Field

[0001] The present invention relates to a connection structure and a vehicle. Background Art

[0002] In a vehicle engine, a connection structure is used in which a plurality of wire harnesses are connected to a connector and a connector cover is mounted (for example, Japanese Patent Application Laid-Open No. 1-105482).

[0003] For example, a plurality of terminals formed at the front ends of a plurality of wire harnesses are inserted into a plurality of terminal holes provided in a connector, and a connector cover surrounding the outer periphery of the inserted portion is mounted.

[0004] In such a connection structure, if the wire harness moves due to, for example, engine vibration, it may be damaged by bending or interference with the outside. Therefore, a connection structure with high retention and vibration damping properties is required. Summary of the Invention

[0005] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a connection structure and a vehicle capable of improving the holding performance and the vibration damping performance.

[0006] The connection structure involved in the embodiment includes: a retainer having a first retaining member and a second retaining member, the first retaining member having a plurality of grooves for arranging a plurality of wire harnesses, the second retaining member being arranged opposite to the first retaining member and blocking the grooves; a connector connected to the plurality of wire harnesses; and a cover provided on the outer periphery of the retainer and the connector.

[0007] Effects of the Invention

[0008] According to the present invention, a connection structure and a vehicle capable of improving holding performance and vibration damping performance can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a perspective view showing the structure of a connection structure according to one embodiment of the present invention.

[0010] Figure 2 It is an exploded perspective view of the connection structure involved in this embodiment.

[0011] Figure 3 It is an explanatory diagram showing the assembly procedure of the connection structure according to this embodiment.

[0012] Figure 4 It is an explanatory diagram showing the assembly procedure of the connection structure according to this embodiment.

[0013] Figure 5 It is a perspective view of a connection structure according to another embodiment.

[0014] Figure 6 It is an explanatory diagram of a vehicle according to one embodiment of the present invention. DETAILED DESCRIPTION

[0015] Below, refer to Figures 1 to 3 A connection structure according to one embodiment will be described. Figure 1 and Figure 2 This is a perspective view and an exploded perspective view of a connection structure according to an embodiment. Figure 2 For the purpose of explanation, a portion of the cover 50 is cut away to show a cross-sectional shape. Figure 3 1 and 2 are explanatory diagrams showing the assembly sequence. In the diagrams, X, Y, and Z represent three directions perpendicular to each other. In addition, for the purpose of explanation, the structure is appropriately enlarged, reduced, or omitted in each diagram.

[0016] like Figure 1 and Figure 2 As shown, the connection portion 10 (connection structure) includes a cable 20, a connector 30 into which the front end of the cable 20 is inserted, a retainer 40, and a cover 50. For example, the connection portion 10 is a connection portion for connecting an engine harness provided in an engine of a vehicle. As an example, the connection portion 10 is as follows. Figure 6 As shown, it is used for wiring connection of a turbocharger provided in an engine 2 of a vehicle 1 such as an excavator.

[0017] The cable 20 (electrical wire) is constructed by bundling multiple wire harnesses 21 (wiring) together in an exterior member 23. For example, the cable 20 includes a covering portion where the multiple wire harnesses 21 are bundled and encased in the exterior member 23, and an exposed portion where the distal ends of the multiple wire harnesses 21 are exposed from the exterior member 23. In this embodiment, as an example, a cable 20 includes eight wire harnesses 21, which are arranged in two rows of four and connected to the connector 30.

[0018] The wire harness 21 is formed by coating copper wires. Terminals 21 a are provided at the front end of the wire harness 21. The terminals 21 a of the wire harness 21 are inserted into the respective terminal holes 32 of the connector 30 and electrically connected to contacts provided in the terminal holes 32.

[0019] For example, the exterior member 23 is made of a resin such as vinyl chloride, and is a tape-shaped or tubular member wound around the plurality of wire harnesses 21 .

[0020] The connector 30 includes a connector housing 31 having a plurality of terminal holes 32 formed therein for inserting the terminals 21a of the plurality of wire harnesses 21. Contacts for connection objects and the like are provided within the connector housing 31. As an example, the connector housing 31 has two rows of terminal holes 32 arranged on its upper surface.

[0021] The holder 40 includes a first holding member 41 and one or more second holding members 42 arranged to face the surface of the first holding member 41 .

[0022] In the present embodiment, the holder 40 is composed of one first holding member 41 and a pair of second holding members 42 , 42 .

[0023] The first holding member 41 is formed of a rubber material such as silicone rubber or a resin material in a block or plate shape. For example, the first holding member 41 includes a bottom portion 41a facing the upper end surface of the connector housing 31 of the connector 30, a pair of holding surface portions 41b and 41c (surface portions) forming a plurality of grooves 44, a pair of side portions 41d and 41e, and an upper surface portion 41f.

[0024] The pair of holding surfaces 41b and 41c form a plurality of grooves 44 for arranging the respective harnesses 21. The inner surface of the groove 44 has a curved surface having an R along the outer surface of the harness 21. For example, the inner surface of the groove 44 has a curved surface having an arc-shaped cross-section.

[0025] The second retaining member 42 is formed of a rubber material such as silicone rubber or a resin material, and is in a block or plate shape. For example, the second retaining member 42 includes a bottom portion 42a facing the upper end surface of the connector housing 31 of the connector 30, a retaining surface portion 42b (surface portion) facing the retaining surfaces 41b and 41c of the first retaining member 41, an outer wall portion 42c facing the outer cover, a pair of side portions 42d and 42e, and an upper surface portion 42f. For example, a double-sided adhesive tape 42g is attached to the retaining surface portion 42b as a bonding member.

[0026] With the wire harness 21 positioned in the grooves 44 of the retaining surfaces 41b and 41c of the first retaining member 41, the pair of second retaining members 42 are positioned opposite the retaining surfaces 41b and 41c, respectively, and are adhered to the first retaining member 41, for example, with adhesive tape 42g, thereby closing the grooves 44. The retainer 40, formed by assembling the first retaining member 41 and the pair of second retaining members 42 and 42, has an outer surface that follows the inner surface shape of the outer cover 50.

[0027] The outer cover 50 is a housing component formed of a rubber or resin material and having a housing chamber 51 formed therein for accommodating the connector 30 and the retainer 40. For example, the outer cover 50 is formed in the shape of a tube with one end and the other end open. The outer cover 50 has a lead-out port 52 extending along the outer diameter of the cable 20 at one end, and a flange opening 53 at the other end that engages with the lower side of the connector 30. For example, the flange opening 53 of the outer cover 50 has a protruding edge portion 53a that protrudes inward, and the inner edge of the protruding edge portion 53a is formed to be slightly narrower than the outer peripheral wall of the connector 30. Therefore, during assembly, the retainer 40 and the connector 30 are accommodated in the housing chamber 51 of the outer cover 50, and the protruding edge portion 53a of the flange opening 53 engages with the lower surface of the connector 30 to be retained.

[0028] Reference Figure 3 The assembly process of the connection portion 10 constructed as described above is described. First, as ST1, the terminal 21a is crimped to the front end portion of the plurality of wire harnesses 21 constituting the cable 20. Next, as ST2, the cable 20 is inserted into the outer cover 50. For example, the cable 20 is inserted into the outlet 52 of the outer cover 50 from the front end side. Then, as ST3, the outer covering 23 is loaded on the portion of the plurality of wire harnesses 21 other than the front end portion. For example, a belt-shaped outer covering is wound around the plurality of wire harnesses 21, thereby bundling the plurality of wire harnesses 21. And, as ST4, the terminal 21a is inserted into the plurality of terminal holes 32 of the connector 30 for electrical connection. And, as ST5, the retainer 40 is loaded. Specifically, the first retaining component 41 is arranged between the wire harnesses 21 arranged in two rows, and the wire harnesses 21 are arranged one by one in each retaining groove 44. With the second holding member 42 positioned opposite to each other, the first holding member 41 and the second holding member 42 are bonded together using the adhesive tape 42g, thereby assembling the retainer 40 as shown in ST6. Next, as ST7, the cover 50, through which the cable 20 was previously passed, is placed over the connector 30 and the retainer 40 to engage them. At this time, while the flange opening 53 of the cover 50 is expanded, the protruding edge 53a of the flange opening 53 is moved to the lower side of the connector 30, whereupon it is engaged and retained at the lower end of the connector 30.

[0029] Through the above steps, the connector 30 and the holder 40 are arranged in the accommodating chamber 51 , and each wire harness 21 is held in the groove 44 .

[0030] According to the connector 10 of this embodiment, the wiring harness 21 is retained in grooves 44 formed on opposing surfaces of the opposing components 41 and 42 and covered by a cover 50. This structure allows the wiring harness 21 to be held in the grooves 44 within the cover 50, thereby suppressing wiring fluctuations and improving retention and shock absorption. For example, by using the retainer 40, the strain on the vibrating wiring harness 21 can be reduced to, for example, approximately one-fifth. This prevents breakage of the wiring harness 21 caused by vibration. Furthermore, according to the connector 10, simply by arranging the multiple components 41 and 42 in opposition and covering them with the cover 50, the wiring harness 21 can be easily retained and protected. For example, when injecting a filler such as silicone into the space within the cover after the cover is installed, a hole for injection is required, and time is required for the filler to cure. Furthermore, when injecting the filler into the cover, problems such as filler leakage, air bubbles entering, and insufficient filling may occur. In contrast, according to the above embodiment, a highly reliable connection structure can be easily obtained simply by assembling the holding members 41 and 42 whose shapes follow the shape of the accommodation chamber 51 of the outer cover 50 .

[0031] The present invention is not limited to the above-described embodiment. For example, the arrangement of the wire harness 21 and the specific shapes and arrangements of the components 41 and 42 of the retainer 40 are not limited to those described above and can be implemented with appropriate modifications.

[0032] For example, in the above embodiment, an example is shown in which the retainer 40 is composed of three members 41 , 42 , 42 , but the present invention is not limited thereto and may be composed of two members or four or more members.

[0033] In addition, in the above embodiment, an example is shown in which the groove 44 is formed on the first holding member 41 side, but the present invention is not limited to this. For example, the groove 44 may be formed on the holding surface portion 42b of the second holding member 42, which faces the first holding member 41, and the second holding member 42, which faces the holding surface portions 41b, 41c, and 42b, respectively.

[0034] For example, as another embodiment, Figure 4 In the example shown, the retainer 140 includes a first retaining member 141 and a second retaining member 142. In this embodiment, grooves 144 are formed on the opposing surfaces of the first retaining member 141 and the second retaining member 142 of the retainer 140. The remaining structure of the retainer 140 is similar to that of the retainer 40 of the first embodiment described above. Furthermore, the structures of the cable 20, connector 30, and cover 50 are also similar to those of the first embodiment described above.

[0035] In addition, in the above embodiment, the example in which the first holding member 41 and the second holding member 42 are joined by the adhesive tape 42g is shown, but it is not limited to this. For example, as another embodiment, Figure 5 As shown, a convex portion 42h is formed on one of the holding surface portions 41b, 42b of each component 41, 42, and a concave portion 41h for the convex portion 42h to fit into is formed on the other surface. By fitting the convex portion 42h into the concave portion 41h, the components 41, 42 are positioned relative to each other.

[0036] While one embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment and can be appropriately modified, improved, etc. The present invention includes all modifications within the scope of the claims and equivalents to the claims.

Claims

1. A connection structure comprising: A retainer having a first retaining member and a second retaining member, wherein the first retaining member has a plurality of grooves for arranging a plurality of wire harnesses, and the second retaining member is arranged opposite to the first retaining member to block the grooves; a connector connected to the plurality of wiring harnesses; and A cover is provided on the outer periphery of the retainer and the connector.

2. The connection structure according to claim 1, wherein: The inner surface of the groove is a curved surface.

3. The connection structure according to claim 1, wherein: The groove is formed on one or more surface portions of the first holding member, One or more second holding members are arranged to face the surface portion of the first holding member.

4. The connection structure according to claim 1, wherein: The connector has a plurality of terminal holes for inserting the plurality of wire harnesses respectively. The retainer is arranged to face an end surface of the connector where the terminal hole is formed.

5. The connection structure according to claim 1, wherein: The wiring harness is an engine wiring harness. 6 . A vehicle comprising the connection structure according to claim 1 .

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