Wire harness
Through the design of connectors and flat wiring materials, the combination of flexible and rigid substrates is adopted to solve the environmental load problems caused by welding, and the reusable and efficient electrical connection of the wiring harness is achieved.
Patent Information
- Application Number
- CN202510125002.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-01-31
- Filing Date
- 2025-01-27
- Publication Date
- 2025-08-01
AI Technical Summary
Existing wire harnesses produce carbon dioxide during welding, resulting in increased environmental load and difficult to decompose, affecting recycling.
The design of connector and flat wiring material is adopted. The connector includes a plurality of terminals and terminal holding parts. The terminal holding parts are arranged in a row and held in a state where the pressing part is protruding. The flat wiring material consists of a flexible and rigid substrate, and is electrically connected through through holes to avoid welding.
Reduces environmental load, simplifies the decomposition and reuse of wire harnesses, reduces solder usage, and improves the multipolarization and anti-largement capability of the connector.
Smart Images

Figure CN120414130A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a wire harness. Background Art
[0002] Conventionally, a rigid-flexible substrate in which a flexible printed circuit board portion having flexibility and a rigid substrate portion on which electronic components are mounted are integrated has been known. In addition, Patent Document 1 discloses a cable connection structure including a flexible printed circuit board, a housing, a cover, and an elastic member. In Patent Document 1, the elastic members are arranged on each of the front and back surfaces of the flexible printed circuit board at a separation position away from the pin terminals in the extending direction of the flexible printed circuit board, and are held in close contact with the flexible substrate by being clamped between the cover and the housing together with the flexible substrate. According to this structure, the cable connection structure of Patent Document 1 can sufficiently suppress the load on the electrical connection portion of the flexible printed circuit board and the pin terminals of the housing caused by external force.
[0003] Prior Art Documents
[0004] Patent Documents
[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2021-36502 Summary of the Invention
[0006] Problems to be Solved by the Invention
[0007] However, the flexible printed circuit board portion is sometimes electrically connected to the terminals by soldering. In such a structure, carbon dioxide is generated due to soldering, or the portions connected by soldering are difficult to decompose, so there are problems such as difficulty in recycling. Therefore, a wire harness that can reduce the environmental load is desired.
[0008] An object of the present invention is to provide a wire harness that can reduce the environmental load.
[0009] Means for Solving the Problems
[0010] The wire harness of the present invention includes: a connector including: a plurality of terminals, each of the plurality of terminals having a press-fitting portion; and a terminal holding portion that holds the plurality of terminals arranged in at least one row in a state where the press-fitting portions protrude; and a first flat wiring material including: a flat first flexible printed circuit board portion having flexibility; and a flat first rigid substrate portion connected to one end of the first flexible printed circuit board portion and having higher rigidity than the first flexible printed circuit board portion, the first rigid substrate portion being formed with a plurality of first through holes, and the press-fitting portions of the corresponding terminals are respectively press-fitted into the plurality of first through holes.
[0011] Effects of the Invention
[0012] The wire harness of the present invention has the effect of reducing the load on the environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a perspective view showing the wire harness of the embodiment.
[0014] Figure 2 It is a perspective view showing the terminal of the embodiment.
[0015] Figure 3 It is a plan view showing the wire harness related to the embodiment.
[0016] Figure 4 It is a cross-sectional view showing the wire harness of the embodiment.
[0017] Figure 5 It is an enlarged cross-sectional view showing the wire harness of the embodiment.
[0018] Figure 6 It is a perspective view showing the terminal housing process in the embodiment.
[0019] Figure 7 It is a perspective view showing the housing housing process in the embodiment.
[0020] Figure 8 It is a perspective view showing the terminal press-fitting process in the embodiment.
[0021] Figure 9 It is a perspective view showing the cover mounting process in the embodiment.
[0022] Figure 10 It is a perspective view showing the rod mounting process in the embodiment.
[0023] DESCRIPTION OF REFERENCE NUMERALS
[0024] 10: Connector;
[0025] 11: Terminal; 12: Terminal holding part; 12A, 12B: Flat parts; 12a: Terminal housing hole;
[0026] 13: Housing; 14: Rod; 15: Cover;
[0027] 20: Flat wiring material;
[0028] 21: Flexible printed circuit board part; 22: Rigid substrate part;
[0029] 100: Wire harness;
[0030] TH: Through hole DETAILED DESCRIPTION OF THE INVENTION
[0031] Hereinafter, a wiring harness according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to this embodiment. Furthermore, the constituent elements in the following embodiments include elements that can be easily conceived by those skilled in the art or elements that are substantially the same.
[0032] [Example]
[0033] Reference Figures 1 to 10 , the embodiments are described. Figure 1 is a perspective view showing a wire harness of an embodiment, Figure 2 is a perspective view showing a terminal of an embodiment, Figure 3 is a plan view showing a wire harness of the embodiment, Figure 4 is a cross-sectional view showing a wire harness of the embodiment, Figure 5 is an enlarged sectional view showing a wire harness of the embodiment, Figure 6 1 is a perspective view showing a terminal accommodation process of an embodiment. Figure 7 1 is a perspective view showing a housing housing process of an embodiment. Figure 8 1 is a perspective view showing a terminal press-fitting process of an embodiment. Figure 9 1 is a perspective view showing the cover installation process of the embodiment. Figure 10 This is a perspective view showing the rod installation process of the embodiment. Figure 4 yes Figure 3 The AA section view shown, Figure 5 yes Figure 4 An enlarged cross-sectional view of region R is shown.
[0034] Figure 1 The wiring harness 100 of the embodiment shown is mounted on a vehicle such as an automobile, for example, to electrically connect an electrical device of the vehicle to other electrical devices of the vehicle. Figure 4 As shown, the wire harness 100 of the embodiment is configured to include a connector 10 and a flat wiring material 20 .
[0035] Connector 10 mates with a mating connector (not shown). For example, the mating connector is located in the housing of a device such as a display or instrument. Wiring harness 100 connects, for example, a device having a mating connector to a control device that controls the device. Flat wiring material 20 includes a printed circuit board that includes power lines and signal lines.
[0036] The connector 10 includes a terminal 11 , a terminal holding portion 12 , a housing 13 , a lever 14 , and a cover 15 .
[0037] like Figure 2As shown, terminal 11 is a metal press-fit terminal. Terminal 11 includes: a square tubular electrical connection portion 11a provided at one end in the axial direction of terminal 11; a press-in portion 11b provided at the other end in the axial direction of terminal 11; and a flat plate-shaped wide portion 11c connecting the electrical connection portion 11a and the press-in portion 11b. Terminal 11 is formed in a straight shape in which the electrical connection portion 11a, the press-in portion 11b, and the wide portion 11c are connected along the axial direction that becomes the press-in direction of a through hole TH described later.
[0038] A central hole penetrating the press-in portion 11b in a direction orthogonal to the axial direction is provided in the press-in portion 11b. When viewed in the direction in which the central hole penetrates the press-in portion 11b, the central hole is formed in a rectangular shape that is horizontally long in the axial direction. The press-in portion 11b has a pair of press-in deformation portions provided so as to sandwich the central hole therebetween. When the press-in portion 11b is pressed into the through hole TH, the pair of press-in deformation portions are formed to be deformable in a manner of deflecting toward the central hole by receiving force from the outer peripheral portion of the through hole TH. In terminal 11, the portion where the pair of press-in deformation portions are provided becomes a crimping portion that crimps with the through hole TH.
[0039] As Figure 1 shown, the terminal holding portion 12 is a member that houses the terminal 11 and is formed of an insulating material such as resin. A plurality of terminal housing holes 12a are formed on one side surface 12s of the terminal holding portion 12 in the embodiment. The terminal housing holes 12a penetrate the terminal holding portion 12 in the fitting direction of the connector 10 and the mating connector. In the terminal holding portion 12 of the embodiment, the plurality of terminal housing holes 12a are formed in multiple rows, and the plurality of terminal housing holes 12a in an adjacent row are formed so as to be offset in the row direction of the plurality of terminal housing holes 12a with respect to the plurality of terminal housing holes 12a in an adjacent other row. That is, the plurality of terminal housing holes 12a are arranged in a staggered manner.
[0040] The terminal holding portion 12 houses each terminal 11 one by one in the terminal housing holes 12a and causes the press-in portion 11b to project from the terminal housing holes 12a. That is, the terminal holding portion 12 holds the plurality of terminals 11 arranged in multiple rows in a state where the press-in portion 11b projects. In the embodiment, the terminal holding portion 12 arranges and holds the plurality of terminals 11 in an adjacent row so as to be offset in the row direction of the plurality of terminals 11 with respect to the plurality of terminals 11 in an adjacent other row. That is, the plurality of terminals 11 are arranged in a staggered manner by being inserted into the corresponding terminal housing holes 12a in the terminal holding portion 12.
[0041] In addition, in the embodiment, the terminal holding portion 12 is configured to include a plurality of flat plate portions 12A and 12B. The terminal holding portion 12 of the embodiment is formed by alternately laminating two flat plate portions 12A and two flat plate portions 12B in the thickness direction of the flat plate portions 12A and 12B. On the side surfaces of the respective flat plate portions 12A and 12B, a plurality of terminal receiving holes 12a penetrating the flat plate portions 12A and 12B in the protruding direction in which the press-fitting portion 11b of the terminal 11 protrudes from the terminal holding portion 12 are arranged in a row in a direction orthogonal to the protruding direction.
[0042] In the following description, in each of the flat plate portions 12A and 12B of the terminal holding portion 12, the column direction in which the terminals 11 are arranged in a row is referred to as the "first direction X". In addition, the protruding direction in which the press-fitting portion 11b of the terminal 11 protrudes from the terminal holding portion 12 is referred to as the "second direction Y". In addition, the lamination direction in which the respective flat plate portions 12A and 12B in the terminal holding portion 12 are laminated is referred to as the "third direction Z". In the embodiment, the first direction X, the second direction Y, and the third direction Z are orthogonal to each other. In addition, the first direction X corresponds to the width direction of the connector 10. In addition, the second direction Y corresponds to the fitting direction of the connector 10 and the mating connector. In addition, the third direction Z corresponds to the height direction of the connector 10.
[0043] The terminal holding portion 12 of the embodiment is formed such that when the flat plate portions 12A and 12B are laminated in such a manner that the formation surfaces of the terminal receiving holes 12a (the surfaces from which the press-fitting portions 11b of the terminals 11 protrude) face the same direction, the terminal receiving holes 12a of the flat plate portion 12A and the terminal receiving holes 12a of the flat plate portion 12B are arranged in a staggered manner on the end surface (the formation surface of the terminal receiving holes 12a) of the terminal holding portion 12. That is, when the flat plate portions 12A and 12B are laminated with the formation surfaces of the terminal receiving holes 12a facing the same direction, in the first direction X, the positions of the plurality of terminal receiving holes 12a of the flat plate portion 12A are arranged at positions offset from the positions of the plurality of terminal receiving holes 12a of the flat plate portion 12B in the first direction X.
[0044] In addition, in the flat plate portion 12A, a concave portion 12c that engages with a concave-convex surface 13a formed on one side of the inner surface of the housing 13 described later is formed on one side surface in the first direction X, and a convex portion 12d that engages with a concave-convex surface 13a formed on the other side of the inner surface of the housing 13 described later is formed on the other side surface in the first direction X of the flat plate portion 12A. The flat plate portion 12A is held in the housing 13 by engaging the convex portion 12d and the concave portion 12c with the concave-convex surface 13a of the inner surface of the housing 13.
[0045] In addition, a support protrusion 12b is formed on the end face of the flat plate portion 12A where the press-fitting portion 11b protrudes. The support protrusion 12b is a part that is inserted through a through-hole (through-hole 22a or through-hole 22b) of a rigid substrate portion 22 described later. On the end face of the flat plate portion 12A on the side where the press-fitting portion 11b protrudes, the support protrusion 12b is formed at the other end in the first direction X (the end on the convex portion 12d side in the flat plate portion 12A).
[0046] In addition, in the flat plate portion 12B, a convex portion 12d that engages with a concavo-convex surface 13a formed on one inner side surface of a housing 13 described later is formed on one side surface in the first direction X, and a concave portion 12c that engages with a concavo-convex surface 13a formed on the other inner side surface of the housing 13 described later is formed on the other side surface in the first direction X of the flat plate portion 12B. Similar to the flat plate portion 12A, the flat plate portion 12B is held by the housing 13 by the convex portion 12d and the concave portion 12c engaging with the concavo-convex surface 13a on the inner side surface of the housing 13.
[0047] In addition, a support protrusion 12b is also formed on the end face of the flat plate portion 12B where the press-fitting portion 11b protrudes. Similar to the support protrusion 12b of the flat plate portion 12A, the support protrusion 12b of the flat plate portion 12B is a part that is inserted through a through-hole (through-hole 22a or through-hole 22b) of a rigid substrate portion 22 described later. On the end face of the flat plate portion 12B on the side where the press-fitting portion 11b protrudes, the support protrusion 12b is formed at one end in the first direction X (the end on the concave portion 12c side in the flat plate portion 12B).
[0048] The housing 13 is a component that houses the terminal holding portion 12 and is formed of an insulating material such as resin. The housing 13 of the embodiment is formed in a box shape that is open on the protruding direction side of the press-fitting portion 11b of the terminal 11, and has a housing portion HS inside that holds the flat plate portions 12A and 12B constituting the terminal holding portion 12 in a stacked state. The terminal holding portion 12 (flat plate portions 12A and 12B) is inserted through the opening 13p of the box-shaped housing 13 and is held in a state where the press-fitting portion 11b of the terminal 11 protrudes from the opening 13p of the housing 13. As Figure 3 shown, in the housing 13, a plurality of mating terminal insertion holes 13d for inserting terminals of a mating connector are formed on the surface of the housing 13 opposite to the opening 13p. In the housing 13, the mating terminal insertion holes 13d are respectively formed at positions corresponding to the positions of the electrical connection portions among the plurality of terminals 11.
[0049] The rod 14 is mounted on the housing 13 and is the part where the connector 10 is fitted with the housing of the mating connector through a force-increasing mechanism including the rod 14. That is, the rod 14 is the part that amplifies the force input to the rod 14 and transmits it to the mating connector, causing the mating connector to be fitted with the housing 13. The housing 13 has two wall portions that are disposed at positions sandwiching the respective flat portions 12A, 12B in the housing portion HS in the stacking direction (third direction Z) of the flat portions 12A, 12B. Cylindrical shaft portions 13c are respectively formed on the outer side surfaces of the two wall portions of the housing 13. The shaft portions 13c support the rod 14 so as to be rotatable.
[0050] As Figure 1 shown, the flexible printed wiring material 20 is a rigid-flexible substrate including a flexible printed circuit board portion 21 and a rigid substrate portion 22. The flexible printed circuit board portion 21 is a flat circuit body having flexibility. The rigid substrate portion 22 has higher rigidity than the flexible printed circuit board portion 21 and is a flat member connected to one end of the flexible printed circuit board portion 21. Here, the rigid substrate portion 22 is, for example, a rigid printed wiring board. In the embodiment, the flexible printed wiring material 20 connects one end of the flexible printed circuit board portion 21 to one end of the rigid substrate portion 22 and is integrally formed as a flat circuit board.
[0051] The flexible printed circuit board portion 21 includes a base film and a printed circuit printed on the base film. The printed circuit is a plurality of wires linearly led out from the rigid substrate portion 22 and is electrically connected to the respective terminals 11 connected to the rigid substrate portion 22.
[0052] A plurality of through holes TH are formed in the rigid substrate portion 22. In addition, through holes (22a, 22b) for inserting the support protrusions 12b of the flat portions 12A, 12B are formed at both end portions of the rigid substrate portion 22 in the first direction X.
[0053] The plurality of through holes TH in the rigid substrate portion 22 are formed in a one-to-one correspondence with the press-fitting portions 11b of the plurality of terminals 11 connected to the rigid substrate portion 22. For example, the plurality of through holes TH in the rigid substrate portion 22 and the corresponding wires in the printed circuit of the flexible printed circuit board portion are connected by linear wires provided on the rigid substrate portion 22.
[0054] In an embodiment, in the rigid substrate portion 22, a plurality of through holes TH are formed in a staggered pattern, so that a plurality of through holes TH can be formed densely with respect to the area of the rigid substrate portion 22. Therefore, the connector 10 can be made multi-polar and the enlargement of the connector 10 can be suppressed. Further, in the rigid substrate portion 22, each terminal 11 having a different position in the third direction Z and the printed circuit of the flexible printed circuit board portion 21 can be electrically connected by connecting them with linear wires. Therefore, when wiring is led out from the rigid substrate portion 22, even without fabricating a complex circuit, a plurality of terminals 11 can be electrically connected to corresponding wires in the printed circuit of the flexible printed circuit board portion 21 through linear wires.
[0055] Each through hole TH includes a cylindrical electrical connection portion provided on the inner peripheral surface of the opening of each through hole TH. The electrical connection portion is formed as a plating layer such as copper plating formed on the inner peripheral surface of the opening of the through hole TH. Further, the electrical connection portion extends from the cylindrical portion toward the circuit portion so as to be physically and electrically connected to the circuit portion of the rigid substrate. In the embodiment, the electrical connection portion functions as the inner peripheral surface of the through hole TH. Therefore, in a plurality of through holes TH, the entire area of the inner peripheral surface thereof can be used as a contact with the terminal 11.
[0056] As Figure 4 shown, in the second direction Y, the electrical connection portions 11a of the plurality of terminals 11 are respectively held so as to face corresponding mating terminal insertion holes 13d in the housing 13. When the connector 10 is mated with a mating connector, the mating terminal of the mating connector is inserted into the cylindrical electrical connection portion 11a of the terminal 11 through the mating terminal insertion hole 13d of the housing 13.
[0057] By inserting the mating terminal into the electrical connection portion 11a of the terminal 11, the terminal 11 and the mating terminal are electrically connected. Further, as Figure 4 and [[ID=!4]] Figure 5 shown, the press-fitting portions 11b of the corresponding terminals 11 are press-fitted into the plurality of through holes TH respectively. The press-fitting portions 11b are held at positions in contact with the inner peripheral surface of the through hole TH and are electrically connected to the inner peripheral surface (electrical connection portion) of the through hole TH.
[0058] The harness 100 of the embodiment is configured to include a pair of flat wiring materials 20 (a first flat wiring material 20A and a second flat wiring material 20B). The first flat wiring material 20A and the second flat wiring material 20B are provided as independent wiring boards.
[0059] The first flat wiring material 20A includes a first flexible printed circuit board portion 21A and a first rigid substrate portion 22A. The first flexible printed circuit board portion 21A is a flexible flat circuit body. The first rigid substrate portion 22A has a higher rigidity than the first flexible printed circuit board portion 21A and is a flat member connected to one end of the first flexible printed circuit board portion 21A. The first flat wiring material 20A connects one end of the first flexible printed circuit board portion 21A and one end of the first rigid substrate portion 22A, and is integrally formed into a flat circuit board.
[0060] The first flexible printed circuit board portion 21A includes a base film and a printed circuit printed on the base film. The printed circuit is a plurality of wires linearly drawn from the first rigid substrate portion 22A and is electrically connected to each terminal 11 connected to the first rigid substrate portion 22A. A plurality of first through holes TH1 are formed in the first rigid substrate portion 22A. The plurality of first through holes TH1 are formed in a one-to-one correspondence with the press-in portions 11b of the plurality of terminals 11 connected to the first rigid substrate portion 22A.
[0061] The second flat wiring material 20B includes a second flexible printed circuit board portion 21B and a second rigid substrate portion 22B. The second flexible printed circuit board portion 21B is a flexible flat circuit body. The second rigid substrate portion 22B has a higher rigidity than the second flexible printed circuit board portion 21B and is a flat member connected to one end of the second flexible printed circuit board portion 21B. The second flat wiring material 20B connects one end of the second flexible printed circuit board portion 21B and one end of the second rigid substrate portion 22B, and is integrally formed into a flat circuit board.
[0062] The second flexible printed circuit board portion 21B includes a base film and a printed circuit printed on the base film. The printed circuit is a plurality of wires linearly drawn from the second rigid substrate portion 22B and is electrically connected to each terminal 11 connected to the second rigid substrate portion 22B. A plurality of second through holes TH2 are formed in the second rigid substrate portion 22B. The plurality of second through holes TH2 are formed in a one-to-one correspondence with the press-in portions 11b of the plurality of terminals 11 connected to the second rigid substrate portion 22B.
[0063] A plurality of terminals 11 held by the terminal holding portion 12 constitute a first terminal group and a second terminal group. The first terminal group is arranged on the first side in the third direction Z, and the second terminal group is arranged on the second side opposite to the first side in the third direction Z. In the embodiment, the columns of the terminals 11 arranged in the third direction Z are arranged in 4 columns. The first terminal group has two columns of terminals 11 on the first side among the two columns of terminals 11 arranged in the third direction Z. The second terminal group has two columns of terminals 11 on the second side among the two columns of terminals 11 arranged in the third direction Z.
[0064] The plurality of first through holes TH1 in the first rigid substrate portion 22A are respectively press-fitted into the press-fitting portions 11b of the corresponding terminals 11 in the first terminal group, and the plurality of second through holes TH2 in the second rigid substrate portion 22B are respectively press-fitted into the press-fitting portions 11b of the corresponding terminals 11 in the second terminal group. At this time, the first rigid substrate portion 22A and the second rigid substrate portion 22B are arranged adjacent to each other in the third direction. The first flexible printed circuit board portion 21A is connected to one end of the first side of the first rigid substrate portion 22A and extends from the first rigid substrate portion 22A toward the first side. The second flexible printed circuit board portion 21B is connected to one end of the second side of the second rigid substrate portion 22B and extends from the second rigid substrate portion 22B toward the second side.
[0065] That is, in the embodiment, two flat wiring materials 20 (the first flat wiring material 20A and the second flat wiring material 20B) are arranged adjacent to each other in the third direction Z. In each flat wiring material 20, the flexible printed circuit board portion 21 extends toward the side opposite to the side of the adjacent other flat wiring material 20.
[0066] The cover 15 is a component that covers the joint portion of the rigid substrate portion 22 and the terminal 11 while holding the flexible printed circuit board portion 21, and is engaged with the housing 13. The housing 13 has engaging protrusions 13b on the outer side surfaces in the first direction X. The cover 15 has engaging recesses that engage with the engaging protrusions 13b of the housing 13, and is assembled to the housing 13 by engaging the engaging recesses with the engaging protrusions 13b of the housing 13.
[0067] In the embodiment, the cover 15 is configured to include a main body portion, a holding portion, and a hinge. The main body portion of the cover 15 is the portion that covers the joint portion of the rigid substrate portion 22 and the terminal 11. The holding portion is arranged on the side opposite to the joint portion side with respect to the main body portion and is connected to the main body portion via a hinge. The holding portion is the portion that sandwiches and holds the flexible printed circuit board portion 21 between the main body portion and itself. In the embodiment, the first flexible printed circuit board portion 21A is folded back so as to be wound around the main body portion of the cover 15, and is held between the holding portion and the main body portion in a state of overlapping with the second flexible printed circuit board portion 21B (see Figure 10 ).
[0068] Next, with reference to Figures 6 to 10 the manufacturing method of the wiring harness in the embodiment will be described. The manufacturing method of the wiring harness 100 in the embodiment includes a terminal holding process, a housing housing process, a press-fitting process, a cover mounting process, and a rod mounting process.
[0069] As Figure 6As shown, in the terminal holding process, corresponding terminals 11 are inserted into the plurality of terminal receiving holes 12a of the terminal holding portion 12. Here, each terminal 11 is inserted in such a manner that the press-fitting portion 11b of the terminal 11 protrudes from the end face exposed from the opening 13p of the housing 13 in the subsequent housing receiving process. The terminals 11 held by the terminal holding portion 12 are arranged on the side surface 12s of the terminal holding portion 12 such that the end positions of the press-fitting portions 11b of the plurality of terminals 11 are located in the same plane. That is, the press-fitting portions 11b of the plurality of terminals 11 held by the terminal holding portion 12 are arranged in a state where the protruding lengths protruding from the side surface of the terminal holding portion 12 are the same.
[0070] Then, as Figure 7 shown, in the housing receiving process, the terminal holding portion 12 holding the terminals 11 is received in the housing 13. In the embodiment, the flat portions 12A and 12B are inserted into the receiving portion HS of the housing 13 from the opening 13p of the housing 13 in a stacked state, so that each of the flat portions 12A and 12B is held by the housing 13. At this time, the stacked flat portions 12A and 12B are inserted in such a manner that the concave portions 12c and the convex portions 12d in each of the flat portions 12A and 12B are engaged with the concave-convex surface 13a of the housing 13.
[0071] Then, as Figure 8 shown, in the press-fitting process, the press-fitting portions 11b of the corresponding terminals 11 are respectively press-fitted into a plurality of through holes TH formed in the rigid substrate portion 22 of the flat wiring material 20.
[0072] In the press-fitting process of the embodiment, in a state where two flat wiring materials 20 (the first flat wiring material 20A and the second flat wiring material 20B) are arranged adjacent to each other in the third direction Z, the press-fitting portions 11b of the corresponding terminals 11 are respectively press-fitted into a plurality of through holes TH. That is, the press-fitting portions 11b of the corresponding terminals 11 are respectively press-fitted into a plurality of first through holes TH1 provided on the first side in the third direction Z of the first rigid substrate portion 22A, and the press-fitting portions 11b of the corresponding terminals 11 are respectively press-fitted into a plurality of second through holes TH2 provided on the second side opposite to the first side in the third direction Z of the second rigid substrate portion 22B.
[0073] At this time, the through-holes 22a formed at one end of the first rigid substrate portion 22A in the first direction X are inserted through by the support protrusions 12b formed at one end of the flat plate portion 12A in the first direction X, and the through-holes 22a formed at the other end of the first rigid substrate portion 22A in the first direction X are inserted through by the support protrusions 12b formed at the other end of the flat plate portion 12B in the first direction X. In addition, the through-holes 22b formed at one end of the second rigid substrate portion 22B in the first direction X are inserted through by the support protrusions 12b formed at one end of the flat plate portion 12A in the first direction X, and the through-holes 22b formed at the other end of the second rigid substrate portion 22B in the first direction X are inserted through by the support protrusions 12b formed at the other end of the flat plate portion 12B in the first direction X.
[0074] In addition, in the press-fitting process of the embodiment, the first flexible printed circuit board portion 21A of the first flat wiring material 20A is arranged to extend from the first rigid substrate portion 22A toward the first side, and the second flexible printed circuit board portion 21B of the second flat wiring material 20B is arranged to extend from the second rigid substrate portion 22B toward the second side. In the embodiment, since the press-fitting process is performed in a state where the first rigid substrate portion 22A and the second rigid substrate portion 22B are adjacent to each other, the press-fitting of the terminals 11 to the two rigid substrate portions 22 can be performed in one process.
[0075] Then, as Figure 9 shown, in the cover mounting process, the cover 15 is engaged with the housing 13 and mounted. As described above, in the embodiment, the cover 15 has a main body portion, two holding portions, and a hinge. The two holding portions are adjacent to each other in the third direction Z and are respectively connected to the main body portion via the hinge. The holding portion is engaged with the main body portion in a manner of covering the main body portion by bending the hinge. In the cover mounting process, the main body portion is mounted so as to cover the two rigid substrate portions 22. Then, the first flexible printed circuit board portion 21A is folded back so as to be wound around the main body portion of the cover 15, the folded-back first flexible printed circuit board portion 21A is sandwiched between the two holding portions and the main body portion, and the first flexible printed circuit board portion 21A and the second flexible printed circuit board portion 21B are held in an overlapping state.
[0076] Then, as Figure 10 shown, in the rod mounting process, the rod 14 is mounted on the housing 13. The rod 14 is rotatably mounted on the shaft portion 13c of the housing 13. Through the above processes, the harness 100 of the embodiment is manufactured.
[0077] In addition, in the description of the above embodiment, an example in which a plurality of terminal receiving holes 12a are arranged in a staggered manner in the terminal holding portion 12 is used for illustration, but it is not limited to this structure. For example, in the terminal holding portion 12, a plurality of terminal receiving holes 12a may also be arranged in a matrix.
[0078] In addition, in the description of the above-described embodiment, an example in which the terminal holding portion 12 and the housing 13 are separate components has been described, but it is not limited thereto. For example, the terminal holding portion 12 may be integrally formed with the housing 13.
[0079] In addition, in the description of the above-described embodiment, an example has been described in which the first flexible printed circuit board portion 21A is folded back so as to be wound around the main body portion of the cover 15, sandwiched between the holding portion and the main body portion, and the first flexible printed circuit board portion 21A and the second flexible printed circuit board portion 21B are held in an overlapping state, but it is not limited thereto. For example, the cover 15 may also fold back the first flexible printed circuit board portion 21A and the second flexible printed circuit board portion 21B so as to be wound around the main body portion respectively, and sandwich and hold them between the holding portion and the main body portion in a state where the first flexible printed circuit board portion 21A and the second flexible printed circuit board portion 21B are overlapped and led out between the two holding portions.
[0080] In addition, the number of the flat portions 12A and 12B constituting the terminal holding portion 12 is not limited to four. For example, the terminal holding portion 12 may also be constituted by laminating two flat portions 12A and 12B.
[0081] In addition, the connector 10 may not have the rod 14.
[0082] As described above, the harness 100 of the embodiment includes: a connector 10 including a plurality of terminals 11 having press-fitting portions 11b and a terminal holding portion 12 that holds the plurality of terminals 11 arranged in at least one row in a state where the press-fitting portions 11b protrude; and a first flat wiring material 20A including a flat plate-shaped first flexible printed circuit board portion 21A having flexibility and a flat plate-shaped first rigid substrate portion 22A. The first rigid substrate portion 22A is connected to one end of the first flexible printed circuit board portion 21A, has higher rigidity than the first flexible printed circuit board portion 21A, is formed with a plurality of first through holes TH1, and the press-fitting portions 11b of the corresponding terminals 11 are respectively press-fitted into the plurality of first through holes TH1.
[0083] By press-fitting the press-fitting portions 11b of the terminals 11 into the first rigid substrate portion 22A of the first flat wiring material 20A, the harness 100 of the embodiment can electrically connect the first rigid substrate portion 22A and the terminals 11 without using solder. According to this structure, for example, the amount of carbon dioxide discharged during the manufacture of the harness 100 can be suppressed. In addition, since the first rigid substrate portion 22A and the terminals 11 can be electrically connected without using solder, the disassembly of the harness 100 becomes easy. Therefore, for example, the reuse of the harness 100 becomes easy.
[0084] In addition, in the wire harness 100 of the embodiment, the terminal holding portion 12 arranges a plurality of terminals 11 in multiple columns, and holds the plurality of terminals 11 in an adjacent column so as to be staggered in the column direction of the plurality of terminals 11 with respect to the plurality of terminals 11 in an adjacent other column.
[0085] In the wire harness 100 of the embodiment, by arranging the plurality of terminals 11 in an adjacent column so as to be staggered in the column direction of the plurality of terminals 11 with respect to the plurality of terminals 11 in an adjacent other column, the metal foil portion of the first flexible printed circuit board portion 21A can be led out linearly. According to this structure, the layout of the circuit of one flexible printed circuit board portion can be simplified. In addition, the number of terminals 11 connected to one rigid substrate portion can be increased, the connector 10 can be made multi-polar, and the enlargement of the connector 10 can be suppressed.
[0086] In addition, in the wire harness 100 of the embodiment, there is also a second flat wiring material 20B. The second flat wiring material 20B includes: a flat plate-shaped second flexible printed circuit board portion 21B having flexibility; and a flat plate-shaped second rigid substrate portion 22B, which is connected to one end of the second flexible printed circuit board portion 21B, has higher rigidity than the second flexible printed circuit board portion 21B, and is formed with a plurality of second through holes TH2. The plurality of terminals 11 constitute a first terminal group and a second terminal group. The second terminal group is arranged on a first side in a direction crossing the column direction of the plurality of terminals 11, and the second terminal group is arranged on a second side opposite to the first side in a direction crossing the column direction of the plurality of terminals 11. The press-fitting portions 11b of the corresponding terminals 11 in the first terminal group are respectively press-fitted into the plurality of first through holes TH1, and the press-fitting portions 11b of the corresponding terminals 11 in the second terminal group are respectively press-fitted into the plurality of second through holes TH2. The first flexible printed circuit board portion 21A extends from the first rigid substrate portion 22A toward the first side, and the second flexible printed circuit board portion 21B extends from the second rigid substrate portion 22B toward the second side.
[0087] In the wire harness 100 of the embodiment, by relatively disposing the first flat wiring material 20A and the second flat wiring material 20B, the press-fitting of the terminals 11 into the two flat wiring materials 20 can be performed in one process.
[0088] The contents disclosed in the above embodiments can be appropriately combined and implemented.
Claims
1. A wire harness, characterized in that, comprising: a connector including a plurality of terminals, a plurality of which have press-in portions; and a terminal holding portion that holds the plurality of terminals arranged in at least one column with the press-in portions protruding; and a first flat wiring material including: a flat first flexible printed circuit board portion having flexibility; and a flat first rigid substrate portion connected to one end of the first flexible printed circuit board portion and having higher rigidity than the first flexible printed circuit board portion, the first rigid substrate portion being formed with a plurality of first through holes, and the press-in portions of the corresponding terminals being respectively press-fitted into the plurality of first through holes.
2. The wiring harness according to claim 1, wherein the terminal holding portion arranges the plurality of terminals in a plurality of columns, and holds the plurality of terminals in adjacent columns offset from each other in the column direction of the plurality of terminals.
3. The wiring harness according to claim 1 or 2, wherein it further has a second flat wiring material having: a flat second flexible printed circuit board portion having flexibility; and a flat second rigid substrate portion connected to one end of the second flexible printed circuit board portion, having higher rigidity than the second flexible printed circuit board portion, and formed with a plurality of second through holes; the plurality of terminals constitute: a first terminal group arranged on a first side in a direction intersecting the column direction of the plurality of terminals; and a second terminal group arranged on a second side opposite to the first side in a direction intersecting the column direction of the plurality of terminals, the press-in portions of the corresponding terminals in the first terminal group are respectively press-fitted into the plurality of first through holes, the press-in portions of the corresponding terminals in the second terminal group are respectively press-fitted into the plurality of second through holes, the first flexible substrate portion extends from the first rigid substrate portion toward the first side, the second flexible substrate portion extends from the second rigid substrate portion toward the second side.
Citation Information
Patent Citations
Cable connection structure
JP2021036502A