JPH1040977A - Connector structure for bus-bar provided on glass face - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a lead wire to be connected to a bus-bar without soldering by combining an interposing terminal piece arranged on the bus bar and a pressurization support piece to be loaded on this interposing terminal piece. SOLUTION: A connector is composed of a base 12 pasted by facing an opening portion 13 to a bus bar 56 provided on a glass face 55, an interposing terminal piece 16 arranged on the bus-bar 56 via an opening portion 13a for electrically connecting a lead wire L, which is arranged to supply power or to output signal, to the bus-bar 56, a pressurization support piece 19 to be loaded on the interposing terminal piece 16, and a cap body 23 removably engaged and locked with a base 12. During capping, a contact main body portion 17 of the interposing terminal piece 16 is directly and safely brought into pressure contact with the bus-bar 56 via the opening portion 13a by pressurization forced generated via the pressurization support piece 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector structure for a bus bar provided on a glass surface.
To be able to electrically connect to the bus bar formed by baking silver paste on the glass surface of automotive rear window glass etc. without soldering the lead wire prepared for power supply or signal output. The present invention relates to a connector structure for a bus bar provided on a glass surface.

[0002]

2. Description of the Related Art Some automotive window glasses, particularly rear window glasses, have an antenna function or an anti-fog function provided on a glass surface. Usually, a heating medium provided on the glass surface is supplied with power via a bus bar. This is done by connecting a lead wire to the bus bar because it is necessary to output a signal from the antenna medium provided on the glass surface via the bus bar.

FIG. 5 shows an outline of a conventional example (see Japanese Patent Publication No. 2-9433) of a connection structure for connecting a lead wire to a bus bar provided in a rear window glass provided with an anti-fog function. It is.

According to FIG. 1, a rear window glass 1 has a plurality of hot wires 2 printed and wired at equal intervals, and a strip-shaped bus bar 3 for connecting these hot wires 2 at both ends.
The power supply terminals 4, 4 are soldered to the bus bars 3, 3, respectively, so that lead wires (not shown) can be connected.

[0005]

However, in the case of the above-described conventional example, since the terminal 4 is joined to the bus bar 3 by soldering, the terminal 4 is weakened due to weak solder adhesive force. There are inconveniences, such as the peeling of the substrate 4, the damage of the electronic component due to the thermal shock at the time of soldering, and the possibility that the glass at the soldered portion may be deteriorated in strength.

[0006] Further, since the lead component contained in the solder is harmful to the human body and the like, it is necessary to take sufficient care not to cause environmental destruction when disposing of the lead component.
There was also a problem of increasing the disposal cost.

Further, since the terminal 4 is exposed and may be visually perceived, a complicated impression may be perceived. Therefore, a countermeasure in external design is also required.

The present invention has been made in view of the above-mentioned problems in the prior art, and has as its object to provide a connector structure for a bus bar provided on a glass surface so that a lead wire can be connected to the bus bar without soldering. There is a purpose.

[0009]

Means for Solving the Problems Among the present invention which has been achieved to achieve the above object, the structural feature of the present invention according to claim 1 is that the opening is opposed to a bus bar provided on a glass surface. A base to be connected, an interposition terminal piece installed on the bus bar through the opening for electrically connecting a lead wire arranged for power supply or signal output to the bus bar, and the interposition terminal A connector is constituted by a pressing piece mounted on the piece and a lid that is detachably fitted and fixed to the base, and the interposed terminal piece has the lid fixed to the base. In this case, the pressing force generated via the pressure supporting piece allows the pressure contact with the bus bar to be freely performed.

A second aspect of the present invention is characterized in that a base is attached to a bus bar provided on a glass surface with an opening facing the base, and the base is detachably fitted to and removed from the base. In order to electrically connect the lid to be attached and the lead wires arranged for power supply or signal output to the bus bar, a pair of receptacles provided in the lid with opening directions opposite to each other are provided. The connector comprises an interposed terminal piece that supports one open end side in one receptacle and the other open end side in the other receptacle and projects downward. The terminal piece is configured to freely press and contact the bus bar via a protruding end thereof by a pressing force generated when the lid is fitted and fixed to the base.

[0011]

FIG. 1 is an exploded perspective view showing an example of an embodiment of the present invention, and FIG. 2 is an explanatory view showing a state of attachment to a glass surface as a cross section.

According to these figures, the entire connector 11 is formed by printing a silver paste composed of fine silver particles, a low-melting glass powder and a solvent on a glass surface 55 such as a rear window glass for an automobile. The base 12 is adhered with the opening 13a facing the bus bar 56 formed by baking, the interposition terminal piece 16 installed on the bus bar 56 through the opening 13a, and the interposition terminal piece At least, the pressure support piece 19 is mounted on the base 16, and the lid 23 is detachably fitted to and fixed to the base 12. Reference numeral 33 in the figure indicates that the base 12 is a glass surface 55
Shows a double-sided tape used when affixing to a base 12
A notch 33a is formed at a portion facing the opening 13a.

The base 12 integrally formed of a synthetic resin material has a rectangular plate-like portion 13 having a substantially square opening 13a at a central portion, and is erected on the plate-like portion 13. The hook portions 14 and 15 are formed.

In this case, the hook portions 14 and 15 are
3, for example, one hook portion 14 is provided at a central portion near one side in the long side direction.
And two hooks 15, 1 near the other side in the long side direction.
5 are erected. Each of the hook portions 14 and 15 has a columnar portion 14a, 15a having an appropriate length determined by a relationship with the height of the lid 23, and the columnar portion 1a.
4a and 15a are formed at the upper end portions thereof with projections 14b and 15b projecting outward in the length direction.
Each of 4b and 15b is formed with slopes 14c and 15c that are inclined forward in the protruding direction.

An interposed terminal piece 16 integrally formed of a conductive metal material is provided with a contact body 17 which is bent into an appropriate three-dimensional shape under a size which can be accommodated in the opening 13a of the base 12. And a protruding piece 18 for connecting a lead wire protruding in a tongue shape from the upper surface side of the contact main body 17.

The pressing support 19 has an appropriate length determined by the support plate 20 mounted on the contact body 17 of the interposed terminal 16 and the height of the lid 23. The support plate 20
It is formed of a support portion 21 erected above and an elastic wing piece portion 22 fixed to the support portion 21 at the center of the plane.
In this case, the elastic wing piece portion 22 is formed of a spring-like plate-shaped metal piece extending in a wing shape toward the short piece direction of the lid 23.

On the other hand, the lid 23 which incorporates the interposed terminal piece 16 and the pressure support piece 19 arranged on the base 12 and is fitted and fixed to the base 12 is smaller than the base 12. Shorten the long side,
Top plate 24 having a rectangular shape with a slightly longer short side
And a side plate portion 2 suspended from both short sides of the top plate portion 24.
5, 25, and side plate portions 26, 26 suspended from both long sides.
And formed.

Each of the side plate portions 25 suspended from the short side of the top plate portion 24 has an upper corner portion determined by a relationship with the standing position of the hook portions 14 and 15 of the base 12. Are provided with fitting holes 27 and 28 for fitting with the protruding portions 14b and 15b corresponding to. In addition, a cutout portion 29 having an appropriate shape capable of forming a through hole for introducing the lead wire L with the base 12 is formed on one of the side plate portions 25.

Each of the side plate portions 26 vertically extending from the long side of the top plate portion 24 has an upper corner portion determined by a relationship with the projecting position of the elastic wing piece portion 22 provided in the pressure support piece 19. Hole 3 for engaging with end portions 22a and 22b corresponding to
0, 31 are provided. Furthermore, these side plate portions 26
Are formed with a skirt 26a that covers the base 12 and contacts the glass surface 55.

For this reason, the connector 11 having the above configuration
When the glass is installed on the glass surface 55, first, the notch 3 has a size equivalent to that of the base 12 and is provided at a position corresponding to the opening 13a.
After affixing the double-sided tape 33 provided with 3 a to the bottom surface of the base 12, it is adhered to an appropriate position of the bus bar 56 on the glass surface 55.

Then, the interposed terminal piece 16 is placed on the bus bar 56 via the opening 13a with the contact body 17 with the protruding piece 18 directed to the notch 29 provided in the lid 23 at the time of covering. At the same time, one end 22a of the elastic wing piece 22 is inserted into the engagement hole 30 of the lid 23, and the other end 22a is inserted into the engagement hole 31.
After locking the b respectively, cover the base 12 side.

In this case, the fitting hole 2 provided in the lid 23 is provided.
After the lids 23 are pressed against the base 12 after aligning the hooks 14 and 15 provided on the base 12 with the hooks 14 and 15, the protrusions 14b and 15 of the hooks 14 and 15 are formed.
b is guided by the slopes 14c and 15c of the
Is smoothly fitted and fastened to the base 12 side.

In addition, at the time of covering, the contact body 17 of the interposed terminal piece 16 is directly moved to the bus bar 56 side through the opening 13a by the pressing force generated through the pressure support piece 19.
And it can be stably pressed. That is, the interposed terminal pieces 19 can be electrically connected to the bus bar 56 without soldering.

FIG. 3 is an exploded perspective view showing another example of the embodiment of the present invention, and FIG. 4 is an explanatory view showing a state of attachment to a glass surface as a cross section.

According to these figures, the entirety of the connector 41 is connected to the bus bar 56 formed on the glass surface 55 by the opening 4.
3a, a base 42 attached to the base 42, a lid 46 detachably fitted to and fixed to the base 42, and a cover 46 provided in the cover 46 with the opening directions opposite to each other. Of the pair of receiving ports 50a and 50b, one receiving port 50a has one end 51a, and the other receiving port 50b supports the other end 51b. Have been. Note that reference numeral 33 in the drawing denotes a double-sided tape having a notch 33a as in FIG.

The base 42 integrally formed of a synthetic resin material includes a rectangular plate 43 having a substantially square opening 43a at the center, and a base 43 in the long side direction of the plate 43. It is formed of hook portions 44 and 45 erected from one side and the other side in parallel with each other.

In this case, since each of the hooks 44 and 45 is used for fitting and fixing the lid 46, the hooks 44 and 45 have a wall height of an appropriate height determined in relation to the height of the lid 46. Portions 44a, 45a, and projecting portions 44b, which protrude outward in the length direction, at the upper end portions of the wall-shaped portions 44a, 45a.
45b, and each of the projecting portions 44b, 45b has a slope portion 44 inclined forward in the projecting direction.
c, 45c are formed.

On the other hand, a lid 46 fitted and fixed to the base 42
A top plate portion 47 having a rectangular shape in which the longer side is shorter and the shorter side is equal to the base 42;
The opening directions are opposite to each other between the side plate portions 48 and 49 vertically extending from both short sides of the top plate portion 47 and the swelling portion 50 protruding from the central portion inside the top plate portion 47. A pair of the receiving ports 50a and 50b, that is, a receiving port 50a facing the side plate section 48 and a receiving port section 50b facing the side plate section 49 are formed as a whole.

In this case, each of the side plate portions 48, 49 is provided with inwardly protruding portions 48a, 49a which engage with the hook portions 44, 45 of the base 42, respectively. Each of the protruding portions 48a and 49a is
Projection portions 24b, 45b of hook portions 44, 45 provided in 2
Are formed so as to be inclined so as to face the inclination directions of the inclined surfaces 44c, 45c provided on the front surface.

One open end 50a of the cover 46 is supported at one open end and the other open end 50b is held at the other open end so as to be bent downward. The interposed terminal piece 51 is formed of a conductive wire having a certain degree of spring property and bent in a one-stroke shape.
More specifically, one linear open ends 52a, 52a of the two linear main bodies 52, 52, both of which are bent in a substantially heart shape.
52a and the other open ends 52b and 52b are connected to each other via the one-side connecting part 53 and the other-side connecting part 54, respectively, so that the one-side connecting part 53 and the other-side connecting part 54 are connected.
And a pinching force is generated between them and their protruding ends 52c, 5
The whole of 2c is formed under the size protruding from the opening 43a of the base 42 at the time of covering. The interposition terminal piece 51 can be used by supporting one or more single-wire structures having no one-side connection part 53 and the other-side connection part 54 in addition to the double-line structure as shown in the illustrated example. Alternatively, one formed of a strip-shaped conductive plate material can be used.

For this reason, the connector 41 having the above configuration
When installing on the glass surface 55, first, the notch 3
After affixing the double-sided tape 33 provided with 3a to the bottom surface of the base 42, it is adhered to an appropriate position of the bus bar 56 on the glass surface 55.

The lid 46 is connected to the top plate 4 via the bulge 50.
7 and the other connecting portion 54 is locked in the other receiving portion 50b, and the other connecting portion 53 is locked in the other receiving portion 50a. Stand 42
Cover the side.

In this case, the lid 46 is provided with a projection 48 a provided on the side plate 48, a projection 44 b of the hook 44 of the base 42, and a projection 49 provided on the side plate 49.
a is engaged with the projecting portion 45b of the hook portion 45 of the base 42, whereby the fitting is fixed to the base 42.

In addition, at the time of covering, the interposition terminal strip 5
The one protruding end 52c can be directly and stably pressed against the bus bar 56 via the opening 43a. That is, the interposed terminal piece 51 can be electrically connected to the bus bar 56 without soldering.

[0035]

As described above, according to the present invention, when the lid is fitted to the base affixed to the glass surface and covered with the cover, the interposed terminal piece is pressed with a predetermined pressing force. Thus, it can be directly and stably pressed against the bus bar.

For this reason, the bus bar and the interposed terminal piece are electrically connected to each other without soldering, and power is supplied to the bus bar by simply connecting the lead wire to the interposed terminal piece. The signal can be output from the side.

In other words, the electrical contact between the bus bar and the interposed terminal pieces can be ensured without using solder. Thus, it is possible to effectively eliminate the occurrence of strength-related performance degradation that tends to occur in the above.

Moreover, since no solder is left on the glass surface at the time of disposal, it is not necessary to remove the lead component which is a problem in environmental protection, and it is possible to contribute to the suppression of the disposal cost.

Further, since the interposed terminal pieces can be brought into electrical contact with the bus bar under the condition of being covered by the lid, the appearance design of the connecting portion between the lead wire and the interposed terminal pieces is preferably made. It can also help in doing so.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an example of the present invention.

FIG. 2 is an explanatory diagram showing a cross-sectional structure when the connector shown in FIG. 1 is provided on a bus bar.

FIG. 3 is an exploded perspective view showing another example of the present invention.

FIG. 4 is an explanatory diagram showing a cross-sectional structure when the connector shown in FIG. 3 is arranged on a bus bar.

FIG. 5 is an explanatory view showing the arrangement of terminals as a conventional example with respect to a bus bar of a rear window glass for an automobile.

[Explanation of symbols]

 11, 41 Connector 12, 42 Base 13, 43 Plate 13a, 43a Opening 14, 15 Hook 14a, 15a Support 14b, 15b Projection 14c, 15c Slope 16 Interposed terminal piece 17 Contact body 18 Projecting piece 19 Pressing support piece 20 Support plate section 21 Support section 22 Elastic wing piece section 22a One end section 22b Other end section 23 Cover 24 Top plate section 25, 26 Side plate section 26a Bottom section 27, 28 Fitting hole 29 Notch Part 30, 31 Engagement hole 33 Double-sided tape 33a Notch part 44, 45 Hook part 44a, 45a Wall part 44b, 45b Projection part 44c, 45c Slope part 46 Cover 47 Top plate part 48, 49 Side plate part 48a, 49a Projection Part 48a, 49b Slope 50 Swelling part 50a, 50b Shelf part 51 Interposed terminal piece 52 Linear body part 52a One side open end 52b The other side open end 5 2c Tip 53 One-side connecting part 54 Other-side connecting part 55 Glass surface 56 Bus bar L Lead wire

Claims (2)

[Claims] 1. A base which is attached to a bus bar provided on a glass surface with an opening facing the bus bar, and the opening for electrically connecting a lead wire arranged for power supply or signal output to the bus bar. An interposition terminal piece installed on the bus bar via the portion, and a pressure support piece mounted on the interposition terminal piece,
A connector is constituted by a lid that is detachably fitted to and fixed to the base, and the interposed terminal piece is generated via a pressure support when the lid is fixed to the base. A connector structure for a bus bar provided on a glass surface, wherein the bus bar can be freely pressed against the bus bar by a pressing force. 2. A base that is attached to a bus bar provided on a glass surface with an opening facing the base, a lid that is detachably fitted to and fixed to the base, and a power supply or signal output. In order to electrically connect the lead wire arranged in the
Of the pair of receptacles provided with the opening directions opposite to each other in the lid body, one of the receptacles supports one open end, and the other receptacle supports the other open end. And the interposed terminal pieces that bend downward to form a connector, and the interposed terminal pieces are busbars through the protruding ends thereof by the pressing force generated when the lid is fitted and fixed to the base. A connector structure for a bus bar provided on a glass surface, characterized in that it can be pressed freely to the surface.