JPH06275348A - Direct socket for double lamp - Google Patents

Abstract

PURPOSE:To provide a direct socket for a double filament type wedge base without generating internal short circuit or internal leakage. CONSTITUTION:A direct socket 7 is constituted by providing a socket 7 (a) and a connector 7 (b) integrally. A four electrodes terminal 8 and three electrodes terminal 9 and two electrodes terminal 10 are arranged in the socket 7. Each part where the abovementioned each terminal makes contact with a wedge part 5 (h) is arranged in X axis direction (corss direction of the wedge part 5 (h)) and each of connector terminals 8 (d), 9 (c), 10 (b) provided on each the terminal is arranged in Y axis direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a socket for mounting and supporting a double filament type wedge base valve,
A structure in which a connector for detachably connecting an electric wire for supplying power to the wedge base valve is integrally connected to the wedge base valve,
This is a so-called direct socket.

[0002]

2. Description of the Related Art Wedge base bulbs are widely used, for example, as a light source for vehicular lamps and are generally classified into a single filament type and a double filament type. FIG. 4 shows a single-filament wedge base valve and a conventional straight socket, (A) is an exploded sectional view including a front view of the valve, and (B) is a side view of the single valve. In the wedge base valve 1, a filament 1g is enclosed in a glass ball 1a, and a pair of lead wires 1b and 1c are drawn out of the glass ball 1a and sealed by a wedge portion 1d. The tip of the lead wire contacts the wedge portion and is folded back to form the valve terminal 1e. Reference numeral 1f shown in the figure is a hook for engagingly holding the socket, as will be described later in this figure. Reference numeral 2 in the drawing denotes a direct socket, in which a socket 2a for mounting and holding the wedge base valve 1 and a connector 2b connected to a connector 3 to which an electric wire 4 is connected are integrally provided, and a socket 1a is provided therein. Pair of composite terminal fittings 2c, 2
c'is attached. The composite terminal fitting 2c is a member in which a socket terminal 2d that contacts the valve terminal 1e of the wedge base valve 1 and a connector terminal 2f that is electrically connected to the connector 3 are integrally molded. Composite terminal 2
c'has a shape that is mirror-image-symmetric with respect to the composite terminal 2c. Reference numeral 2e in the drawing denotes a lock spring formed on the composite terminal fitting 2c, which engages with a hook 1f formed on the wedge portion of the wedge base valve 1 and elastically supports it.

For convenience of explanation, the X axis is in the width direction of the wedge portion 1d of the wedge base valve 1, and the Y axis is in the thickness direction.
The Z axis is assumed in each of the length directions. As can be easily understood from FIG. 4 (A), a pair of composite terminal fittings 2c, 2
c'is aligned in the X-axis direction and has a pair of connector terminals 2
f and 2f 'are also arranged in the X-axis direction.

[0004]

The direct socket shown in FIG. 4 is for a single-filament type (one filament 1g) wedge base valve. Similarly, a double-filament type wedge base valve is used. There is a technical difficulty in constructing a direct differential valve for a car, and it has not been put to practical use yet. The above-mentioned double filament type wedge base valve is a member such as reference numeral 5 shown in FIG. 5, in which a main filament 5b and a sub filament 5c are arranged in a glass ball 5a, and lead wires 5f and 5g are respectively provided. , 5d and 5e, and is supplied with power. These lead wires are drawn out of the glass bulb 5a and sealed by the wedge portion 5h. A hook 5i is formed on the wedge portion. 5j and 5k are valve terminals, respectively, and two more valve terminals are provided so as to be hidden by the wedge portion 5h. The reason why it is difficult to configure the direct socket for mounting the double filament type wedge base valve 5 is that in the case of the double filament type, the number of terminal members is large (at least 3) and the structure is complicated, This is because these three terminal members are close to each other in the direct contact socket, and there is a high possibility that a short circuit or an electric leakage may occur. When this problem is considered further, the number of lead wires of the single filament type wedge base valve 1 shown in FIG. 4 is two, but in comparison with the double filament type wedge base valve 5 shown in FIG. There are four lead wires. However, since it is possible to combine two of these four lead wires into a common ground, at least three current paths are required. In such a technical background, when at least three terminal members are formed and a socket terminal and a connector terminal are formed in each of the at least three terminal members and embedded in the direct insertion socket, mutual spacing is provided. Can not be taken large. If the distance between the terminal members embedded in the direct insertion socket is too small, there is a risk of mutual contact due to a positioning error. Also, even if you do not touch
There is a risk of leakage due to surface leakage. Therefore, the direct socket for the double filament type wedge base valve has not been put into practical use, and the socket 6 as shown in FIG. 5 is used. At least three socket terminals 6a are provided in the socket 6 and are connected to the three electric wires 4a, 4b, 4c. These wires cannot be easily attached and detached, the number of man-hours required for assembly work is large, and the maintenance is not easy. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a direct socket for a double-filament type wedge base valve, which is free from the risk of internal short circuit and internal leakage.

[0005]

In order to achieve the above-mentioned object (direct contact socket without fear of short circuit), the structure of the direct contact socket according to the present invention is a socket for mounting and holding a double filament wedge base valve. And a connector for detachably connecting the socket to an electric wire are integrally formed, and at least three terminal fittings are provided. Each of the terminal fittings includes:
It is characterized in that a portion acting as a terminal of the socket and a portion acting as a terminal of the connector are integrally molded. Further, as a mode recommended when implementing the direct socket having the above-mentioned configuration, assuming the widthwise X axis of the wedge portion of the wedge base valve and the thicknesswise Y axis of the wedge portion, At least two of the portions formed on each of the at least three terminal fittings and acting as socket terminals are arranged in the X-axis direction, and formed on each of the at least three terminal fittings. It is desirable that the portions acting as connector terminals are arranged in the Y-axis direction.

[0006]

According to the above construction, since the socket for mounting and holding the wedge base valve and the connector for attaching and detaching the electric wire are integrally formed, the number of constituent parts is small and the external wiring is simplified. There are few man-hours and maintenance is easy.

Furthermore, since the socket terminals arranged in the above-mentioned directly formed socket are arranged in the X-axis direction and the connector terminals are arranged in the Y-axis direction, these connector terminals and the socket terminals are connected in series. In addition, the at least three terminal fittings cross each other in a twisted shape between the socket portion and the connector portion. Due to this crossover effect, the terminal fittings can maintain a sufficient space in the three-dimensional space, and there is no fear of internal short circuit or internal leakage.

[0008]

Embodiments of the present invention will now be described with reference to FIGS. FIG. 1 is a three-sided view showing an embodiment of a differential socket for a double filament type wedge base valve according to the present invention, in which (A) is a top view,
(B) is a side sectional view and (C) is a bottom view. Figure 1 above
Shows the assembled state of this embodiment. FIG. 2 is an exploded perspective view showing the double filament type wedge base valve according to the above embodiment. Since FIG. 1 has a small scale and it is difficult to understand details, FIG.
It is a principal part detail drawing which expanded the central vicinity of the top view of the direct contact socket shown to (A). As shown in FIGS. 1B and 2, the direct socket 7 of this embodiment has a socket 7a and a connector 7b that are concentrically integrally connected. Figure 1 (B)
Reference numeral 7c appearing in 1 is a connector seal. As described above, in the direct contact socket 7 in which the socket and the connector are integrally connected, three terminal metal fittings are provided: the four-pole terminal 8, the three-pole terminal 9, and the two-pole terminal 10. , And their longitudinal directions are arranged in the Z-axis direction. The Z-axis is the wedge base valve 5
Of the wedge portion, and coincides with the length direction of the wedge portion (not the longitudinal direction, which is the direction perpendicular to the width direction and the thickness direction). The two-pole terminal 10 has socket terminals 10a and connector terminals 10b formed at both ends in the longitudinal direction (see FIG. 2). 10c is
It is a locking claw that functions as a retainer when it is inserted into and attached to the socket 7a. The three-pole terminal has a socket terminal 9a, a connector terminal 9c, and a lock spring 9b. The lock spring is a member that engages with the hook 1f of the wedge base valve 1. The four-pole terminal 8 is formed with two socket terminals 8a and 8b, one lock spring 8c, and one connector terminal 8d.

FIG. 3 depicts an enlarged detail of the central portion of FIG. 1 (A), and the entered symbols and names have already been described. However, this FIG. 3 is not illustrated in actual form because it is schematically illustrated for convenience of understanding the structure of the present embodiment and is modified as follows. (A) 3
For each of the terminals 8, 9 and 10, most of the lines other than the outer contour are omitted so that the contours can be easily identified, and (b) if the outlines of these three terminals 8, 9 and 10 are clear. Hatching for tightening is provided, and (c) connector terminals 8d, 9c, 10b are provided with cross hatching. Therefore, the hatching in FIG. 3 does not display the cross section. Furthermore, (d) the above three connectors 8, 9,
Lines intersecting with the respective outer peripheral contours of 10 and lines close to the outer peripheral contours are deleted. 5h drawn by an imaginary line represents the wedge portion of the wedge base valve. Since the width direction of the wedge portion is the X axis and the thickness direction is the Y axis, the socket terminals 8a, 8b, 9a, 10a of the terminals 8, 9, 10 are arranged side by side in the X axis direction. It touches the side of 5h. But,
As shown in FIG. 1C, the connector terminals 8d, 9c, 10b of the respective terminals are arranged in the Y-axis direction. The structure in which the connector terminal array and the socket terminal array are three-dimensionally twisted by 90 degrees in this way is as shown in FIG. 3 when viewed in a plan view in the Z-axis direction. It looks like Fig. 2. That is, in FIG. 2, the socket terminals 8 of the terminals 8, 9 and 10 are shown.
Although a, 8b, 9a, and 10a are arranged in the X-axis direction, the connector terminals 8 of the terminals 8, 9, and 10 are arranged.
d, 9c and 10b are Y as indicated by arrows a, b and c, respectively.
Lined up in the axial direction, inserted into the direct insertion socket 7, fixed by planting,
In the vicinity of the portion pointed by the arrow D, a three-dimensional cross in a 90-degree twist shape is formed. It can be seen from the plan view that they are spaced from each other as shown in FIG. 3, but when seen three-dimensionally, they are kept from each other as can be understood from FIG. Therefore, even if there is a manufacturing error of a normal level, there is no risk of contact / shortening between the three terminals 8, 9 and 10 or abnormal approach or leakage.

[0010]

When the present invention is applied, since the socket for mounting and holding the wedge base valve and the connector for attaching and detaching the electric wire are integrally formed, the number of constituent parts is small and the external wiring is simplified. Assembling work is small and maintenance is easy.

Further, since the socket terminals arranged in the integrally formed right-angled socket are arranged in the X-axis direction and the connector terminals are arranged in the Y-axis direction, these connector terminals and the socket terminals are connected in series. In addition, at least three terminal fittings cross over in a twisted shape between the socket portion and the connector portion. Due to this overpass effect
The terminal fittings can maintain a sufficient space in a three-dimensional space, and there is an excellent practical effect that there is no risk of internal short circuit or internal leakage, contributing to the development of vehicle lamp manufacturing technology and industry. However, it is huge.

[Brief description of drawings]

FIG. 1 is a three-sided view showing an embodiment of a differential socket for a double-filament type wedge base valve according to the present invention, in which (A) is a top view and (B) is a side sectional view. )
Is a bottom view. FIG. 1 above illustrates the assembled state of this embodiment.

FIG. 2 is an exploded perspective view showing a double filament wedge base valve according to the above embodiment.

FIG. 3 is a detail view of an enlarged main part near the center of the top view of the direct insertion socket shown in FIG. 1 (A).

FIG. 4 shows a single-filament wedge base valve and a conventional straight socket, (A) is an exploded sectional view including a front view of the valve, and (B) is a side view of the single valve.

FIG. 5 is an exploded perspective view showing a double filament wedge base valve and a socket.

[Explanation of symbols]

1 ... Wedge base valve, 1a ... Glass bulb, 1b, 1
c ... Lead wire, 1d ... Wedge portion, 1e ... Valve terminal, 1f ... Hook, 1g ... Filament, 2 ... Direct socket, 2a ... Socket, 2b ... Connector, 2c, 2c ′
... Composite terminal fittings, 2d ... Socket terminals, 2e ... Lock springs, 2f, 2f '... Connector terminals, 3 ... Connector, 4 ... Electric wire, 5 ... Double filament type wedge base valve, 5a ... Glass bulb, 5b ... Main filament 5c ... Sub-filament, 5d-5e ... Lead wire, 5h ... Wedge portion, 5i ... Hook, 5j, 5k ... Valve terminal, 6 ... Socket, 6a ... Socket terminal, 7 ... Direct socket, 7a ... Socket, 7b ... Connector, 8 ... 4
Pole terminal, 8a, 8b ... Socket terminal, 8c ... Lock spring, 8d ... Connector terminal, 9 ... 3-pole terminal, 9a ... Socket terminal, 9b ... Lock spring, 9
c ... connector terminal, 10 ... 2-pole terminal, 10a ... socket terminal, 10b ... connector terminal, X ... coordinate axis assumed in the width direction of the wedge portion of the wedge base valve, Y ...
Similarly, the coordinate axis assumed in the thickness direction, Z ... Similarly, the coordinate axis assumed in the length direction.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Michiyasu Watanabe 1-8-1 Kotake-cho, Nerima-ku, Tokyo Ryosei Denso Co., Ltd. (72) Inventor Akihiro Kojima 1-8- Kotake-cho, Nerima-ku, Tokyo No. 1 Ryosei Denso Co., Ltd.

Claims (2)

[Claims] 1. A socket for mounting and holding a double filament wedge base valve and a connector for detachably connecting the socket to an electric wire are integrally formed, and at least three terminal fittings are provided. A straight socket for a double ball, wherein each of the terminal fittings is integrally molded with a portion acting as a terminal of a socket and a portion acting as a terminal of a connector. 2. Assuming an X-axis in the width direction of the wedge portion of the wedge base valve and a Y-axis in the thickness direction of the wedge portion, each of the at least three terminal fittings is formed as a socket terminal. At least two of the acting portions are arranged in the X-axis direction, and the portions formed on each of the at least three terminal fittings and acting as connector terminals are arranged in the Y-axis direction. A straight socket for double balls according to claim 1, characterized in that.