JP2571408Y2 - Electrical connection structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connection structure for connecting a terminal of an electric component installed in, for example, an automobile and a wire harness or wire harnesses.

[0002]

2. Description of the Related Art For example, there is a connector as shown in FIG. 1 as a connection structure for connecting two wire harnesses. 1
Is a connecting device, and the connecting device 1 has semicircular guide grooves 2a and 2 for guiding two wire harnesses in parallel.
b and a semi-circular guide groove 5a and 5b corresponding to the guide grooves 2a and 2b, respectively, which are connected to both side edges of the body through thin hinges 4. Lids 6a, 6b, and both guide grooves 2a
And 2b, and are fixed along the guide grooves 2a and 2b.
And conductive connecting pieces 7 formed with respective electric wire biting slits 7a, 7b corresponding to the first and second lids 6a, 6b.
After the covered electric wires 8a and 8b are fitted into the guide grooves 5a and 5b as shown in FIG. 2, the lids 6a and 6b are put on the body 3 together with the electric wires with the thin hinge 4 as a boundary. ,
Further, as shown in FIG. 3, the body 3 and both the lids 6a and 6b are pressure-coupled to each other by the tool 9, so that the coating of both the wire harnesses 8a and 8b is broken, and the core wire of the wire harness 8a and 8b is slit. The core wires of both wire harnesses 8a and 8b are electrically connected via the conductive connecting piece 7 as a result.

[0003]

However, in such a conventional electric connection structure, it is effective to connect a plurality of wire harnesses to each other, but in a case where electric parts are mounted, In order to connect the electric components and the wire harness, in terms of space in the case, a place for disposing the connector 1 in the case, and an operation for connecting the connector 1 and the wire harness in the case. There was no space and the connection between the electric component and the wire harness was impossible.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem, and a slit for breaking a sheath of a wire harness and biting a core wire thereof in a case for mounting an electric component. By integrally forming a terminal fitting portion for fitting the terminal tip portion having the above, a wire harness is erected on the edge of the terminal fitting portion, and then the terminal tip portion is fitted into the terminal fitting portion, According to the present invention, there is provided an electrical connection structure in which a wire harness coating is broken by a slit provided at the terminal end portion, and the core wire of the wire harness and the terminal are electrically connected. Advantageously, the work of electrically connecting the terminal to the wiring harness can be simplified, and the wiring space for the wiring harness can be reduced.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings.

In FIG. 4, reference numeral 11 denotes a case of a power window switch for an automobile. In this case 11, an operating piece 12 of a seesaw type switch is incorporated for each switch. Reference numeral 13 denotes an operation knob that is pivotally supported for each switch. Reference numeral 14 denotes an illumination bulb socket (electric element) for transmitting and illuminating the operation knob 13. It is a structure to be attached from the back side of. Reference numerals 15a and 15b denote energizing bars (terminal plates) fitted on the back side of the case 11, and the shape of one energizing bar 15a in the present embodiment is formed in a substantially U-shape in plan view, and one end thereof. Has a socket connecting portion 16a connected to one end of the socket 14, and an electric wire connecting portion 17a formed at the other end. The shape of the other energizing bar 15b is approximately L
And a socket connecting portion 16 connected to the other end of the socket 14 at one end of the power supply bar 15b.
b is formed, and an electric wire connection portion 17b is formed at the other end. These two electric wire connection portions 17a and 17
The detailed structure of b is as shown in FIG.
And a pair of upstanding pieces 18b standing upright from both sides thereof, and a cutout groove 18c for holding a core wire of an electric wire is formed at a substantially central portion of the pair of upstanding pieces 18b. Reference numeral 19 denotes a wire harness that connects the connector 20 to one end thereof.
Have been spent. Reference numeral 22 denotes a terminal fitting hole formed on the back side of the case 11. The terminal fitting hole 22 is fitted with a pair of upstanding pieces 18b provided in the respective energizing bars 15a and 15b. It is the opposite. In addition, these terminal fitting holes 22
A protrusion 23 for adjusting the frictional force at the time of press-fitting of the standing piece 18b is formed on the inner side surface of the upright piece 18b. An electric wire positioning groove 24 for erection and holding the 21 is formed. Reference numeral 25 denotes a stopper for positioning the end of the electric wire.

The configuration of the present embodiment has been described above. Next, the operation will be described.
In order to connect the wire harness to the bulb socket 14 assembled in 1, the operating piece 12, the operation knob 13, and the illumination bulb socket 14 are first assembled to the case 11. Next, the covered wire 21 of the wire harness 19 to which the connector 20 is connected in advance is fitted into the wire positioning groove 24 formed on the back side of the case 11 of the covering, and the wire 21 is connected to the terminal fitting hole 22. The electric wire 21 is positioned on the edge and the tip of the electric wire 21 is connected to the stopper 25 to position the electric wire 21 (see FIGS. 10 and 11).

Next, the upstanding pieces 18b of both of the previously formed conductive bars 15a and 15b are fitted into the terminal fitting holes 22 from above the electric wire 21 located on the edge of the terminal fitting hole 22. For this reason, the upstanding piece 18b is pressed into the terminal fitting hole 22 while the electric wire 21 is fitted into the notch groove 18c formed in each upstanding piece 18b. The coating of the electric wire 21 is broken by the cutout groove 18c at the time of press-fitting, and as a result, the electric wire core wire and the electric conduction bars 15a, 15
b is electrically connected. Further, by completely inserting the upright piece 18b into the terminal fitting hole 22, the upright piece 1 caused by the core wire being fitted into the notch groove 18c.
The conductive bars 15a and 15b are fixed to the case 11 by the deformation in the width direction a of 8b and the contact pressure by the ridges 23 and the like.
Thus, these conductive bars 15a and 15b are
The sockets 16a and 16b provided at the other ends of the conductive bars 15a and 15b are electrically connected to the valve socket 14 which is assembled in advance. Electric wires 2 through 15a and 15b
Reference numeral 1 denotes an electrical connection to the valve socket 14.

As described above, in this embodiment, the upright piece 18b having the cutout groove 18c is formed at one end of each of the conducting bars 15a and 15b routed inside the case, and the upright piece is formed in the case. The terminal fitting hole 22 to be fitted is formed, and in a state where the electric wire 21 is laid on the terminal fitting hole 22, the upright piece 18 b is pressed into the terminal fitting hole 22 from above the electric wire in a one-touch operation. Since the connection between the wire bar and the electric wire and the connection between the wire bar and the case can be performed in a very simple work process, the workability of connecting the wire and the terminal plate (the wire bar) is remarkably improved, and the economic efficiency is improved. The feature is that it can be increased and the work space for the connection work can be reduced.

[0010]

As described above, according to the present invention, the electric element 1 housed in the housing 11 made of an insulating resin material is used.
4, the terminal plate 15a, the terminal plate 15a one end of 15b is connected to the other end of the 15b, the electrical connection structure for connecting a covered wire 21, the terminal plate 15
a, the core wire before Symbol covered wire to the other end of the 15b to form a cutout groove 18c to be press-fitted clamping, to the housing 11, the terminal plate 15a, the plate thickness direction 15b other end face
A terminal fitting hole 22 is provided in which a surface and both side surfaces parallel to the notch groove 18c are fitted and held . Further, the terminal fitting hole 22 is fitted into the fitting hole 22 at a hole edge thereof. Before joining
The notch is aligned with the notch groove 18c of the terminal plate.
Do not hinder press-fitting of insulated wire 21 into groove 18c.
Since the receiving portion 24 to which is the electrical connection structure formed on one body, it is possible in a very simple work process coupled with the coupling and the terminal plate and the case of the terminal plate and the electric wire according to this Therefore, the connection workability between the electric wire and the terminal plate (density bar) is remarkably improved, and the effect is obtained that the economy is improved and the work space for the connection work can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a conventional electric wire connector.

FIG. 2 is a perspective view showing a connection process of a conventional wire connector.

FIG. 3 is an explanatory diagram of a wire connection state by a conventional wire connector.

FIG. 4 is an exploded view showing an embodiment of the electric wire connection structure according to the present invention.

FIG. 5 is a detailed perspective view of a terminal end structure of the present embodiment.

FIG. 6 is a plan view of a terminal fitting hole according to the present embodiment.

FIG. 7 is a sectional view taken along line AA in FIG. 6;

FIG. 8 is a sectional view taken along line BB in FIG. 6;

FIG. 9 is an external side view of the present embodiment.

FIG. 10 is a back view of the present embodiment.

FIG. 11 is an enlarged view of a main part in FIG. 10;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 ... Case 12 ... Operating piece 13 ... Operation knob 14 ... Illumination bulb socket 15a, 15b ... Electricity bar 16a, 16b ... Socket connection part 17a, 17b ... Electric wire connection part 18a ... Flat part 18b ... Standing piece 18c ... Notch groove 19 ... Wire harness 20 ... Connector 21 ... Coated wire 22 ... Terminal fitting hole 23 ... Protrusion 24 ... Wire positioning groove 25 ... Stopper

Claims (1)

(57) [Scope of request for utility model registration] An end of a terminal plate (15a, 15b) is connected to an electric element (14) housed in a housing (11) formed of an insulating resin material. The other end of the terminal plate (15) in the electric connection structure for connecting the covered wire (21) to the other end.
a, the core wire before Symbol covered wire to the other end of 15b) to form a cutout groove which is press-fitted clamping (18c), said housing (1
The 1), said terminal plate (15a, 15b) and the other end portion of the thickness direction of the facing surface and the slit (18c) parallel to <br/> terminal fitting hole both sides Ru is fitted and held ( 22), and the terminal fitting hole (22) has an upper edge
Insert the terminal board into the fitting hole (22).
The notch groove (18c) is aligned with the notch groove (18c).
Not to hinder press-fitting of the insulated wire (21)
Electrical connection structure, wherein the receiving part (24) that was formed on one body for.