JP3733044B2 - Automotive cigarette socket - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle-mounted cigarette socket that includes a cylindrical body that receives a plug and supplies electric power to the plug.
[0002]
[Prior art]
A conventional in-vehicle cigarette socket 1 shown in FIG. 6 includes a plurality of cylinders 2 that are integrally formed with each other and a connecting rod 3 that electrically connects the cylinders 2 to each other, and each cylinder 2 and the connecting rod 3 are plated. And each cylinder 2 and the terminal board 4 are accommodated in the case 5 comprised by the lower case 5a and the upper case 5b.
[0003]
[Problems to be solved by the invention]
The cylindrical body 2 of the conventional in-vehicle cigarette socket 1 is formed by drawing a thin steel plate and performing electroless Ni plating (so-called glass plating) on the thin steel plate. The inner surface side of the cylindrical body 2 has poor plating contact compared to the outer surface side.) The pinhole or plating thickness is likely to be too small, and rust is generated due to this pinhole or plating thickness being too small, resulting in poor contact. There was a risk of it occurring.
[0004]
Therefore, a thin resin coating has to be applied in order to close the pinholes or to compensate for an insufficient plating thickness, and an extra coating step is required. Since this resin coating layer is very thin, the contact portion is easily peeled off by the first contact 22a protruding from the side surface of the plug 12 when the plug 12 is inserted, and the plating surface is exposed, so that contact failure does not occur. This has a problem that a thin plating layer is exposed to air during use, and rust is generated on the inner surface of the cylindrical body 2 during use. Moreover, since each cylinder 2 was electrically connected by the connecting rod 3, there was a possibility that poor contact would occur due to failure of soldering.
[0005]
Therefore, a main object of the present invention is to provide a vehicle-mounted cigarette socket that can prevent rust from being generated on the inner surface of the cylindrical body 2.
[0006]
Another object of the present invention is to provide an in-vehicle cigarette socket that can prevent a contact failure from occurring in a connecting portion that connects the cylindrical bodies 2 to each other.
[0007]
[Means for Solving the Problems]
The present invention has first and second cylinders that have openings at both axial ends and are plated on the inner surface and contact the first contact that protrudes from the side of the plug, and one of the openings. And a terminal plate that comes into contact with the second contact that protrudes toward the insertion end of the plug inserted from the other opening, and a case that houses the first and second cylinders and the terminal plate. In the cigarette socket, the first and second cylinders are divided into a plurality of divided bodies by dividing the side walls of the first and second cylinders along a dividing line from one opening to the other opening, and An in-vehicle cigarette socket, wherein at least one of the divided bodies constituting the first cylinder and at least one of the divided bodies constituting the second cylinder are integrally formed .
[0008]
Since the cylindrical body is divided into a plurality of divided bodies, it is possible to perform plating with a sufficient thickness that is uniform and free from pinholes on the inner surface of each divided body constituting the cylindrical body. Therefore, the generation of pinholes that cause rust can be prevented.
[0009]
Moreover, since at least one division body which comprises a 1st cylinder and at least 1 division body which comprises a 2nd cylinder are integrally formed, it is necessary to use the connecting rod which connects cylinders mutually. Disappear.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
An in-vehicle cigarette socket 10 to which the present invention is applied as shown in FIG. 1 supplies power to a plug 12 as shown in FIG. 3, and includes a socket 14, a terminal plate 16, and a case 18 for housing them. Including. Here, the plug 12 (FIG. 3) includes a cylindrical main body 20, and the main body 20 is provided with a first contact 22 a protruding to the side surface and a second contact 22 b protruding to the insertion end side. .
[0011]
As shown in FIGS. 1 and 2, the socket 14 includes two cylindrical bodies 26 having openings 24 a and 24 b at both ends. Each cylindrical body 26 has a structure in which a side wall is divided by two dividing lines A extending from one opening 24a to the other opening 24b, and a portion constituting the lower half of each cylindrical body 26 is a first divided body 26a. The portion constituting the upper half is the second divided body 26b.
[0012]
And the 1st division body 26a of each cylinder 26 is connected in the connection part 28a provided in the circumferential direction edge part, the lower socket piece 14a is comprised, and the width direction both ends of the lower socket piece 14a are comprised. A connecting portion 30a extending in the axial direction of each cylindrical body 26 is formed, and a flange 32a is formed at one end in the axial direction.
[0013]
Further, the second divided pieces 26b of each cylindrical body 26 are connected to each other at a connecting portion 28b provided at a circumferential end portion to constitute an upper socket piece 14b. A connecting portion 30b extending in the axial direction of the cylindrical body 26 is formed, and a flange 32b is formed at one end in the axial direction.
[0014]
Accordingly, in the lower socket piece 14a, the inner surfaces of the two first divided bodies 26a formed integrally with each other are recessed in the same direction, and in the upper socket piece 14b, two second divided pieces formed integrally with each other. The inner surface of the body 26b is concave in the same direction. The inner and outer surfaces of the lower socket piece 14a and the upper socket piece 14b are plated in order to provide electrical conductivity.
[0015]
When the socket 14 is formed, first, the lower socket piece 14a and the upper socket piece 14b are each formed by pressing one continuous metal plate (iron, brass, phosphor bronze, etc.), and the inner and outer surfaces thereof. Further, for example, plating such as Ni or Cr plating is performed by electrolytic plating or electroless plating (generally Ni electroless plating). In this case, the lower socket piece 14a and the upper socket piece 14b are formed with irregularities by the first divided body 26a and the second divided body 26b, but are not cylindrical like the conventional cylindrical body 2, The plating around the concave portions of the first divided body 26a and the second divided body 26b is approximately the same as the outer surface, and a sufficient plating thickness without a pinhole is achieved.
[0016]
When plating is performed in this way, next, the socket pieces 14a and 14b are combined so that the flanges 32a and 32b are positioned in the same direction, and the connection portion 30a and the connection portion 30b are connected to each other (spot welding, Soldering or conductive bonding).
[0017]
The terminal plate 16 (FIG. 1) is made of a metal plate such as an iron plate, and includes a terminal 16 a that is in contact with the second contact 22 b (FIG. 3) that protrudes toward the insertion end of the plug 12. Then, the same plating as described above is applied to the surface of the terminal board 16.
[0018]
The case 18 includes a lower case 18a and an upper case 18b. The lower case 18a includes a main body 34. Inside the main body 34, a socket holding portion 36a, a hook locking groove 36b, a terminal plate clamping portion 38, and a fitting recess 40 are formed. A cord hole 42 is formed. The upper case 18b includes a main body 44. Inside the main body 44, a socket holding portion, a hook locking groove and a terminal plate clamping portion (not shown) are formed, and two plug insertion holes 46 are formed in the front portion of the main body 44. Formed on both side portions of the main body 44 in the width direction are fitting convex portions 48 fitted into the fitting concave portions 40 of the lower case 18a.
[0019]
When assembling the cigarette socket 10, the socket 14 is disposed at a predetermined position of the lower case 18 a, the hook 32 a is fitted into the hook locking groove 36 b, and the terminal board 16 is fitted into the terminal board holding portion 38. Then, after connecting a connection cord (not shown) to a predetermined location, the upper case 18b is positioned on the lower case 18a, and the fitting concave portion 40 and the fitting convex portion 48 are fitted. In the completed state of the cigarette socket 10, the movement of the socket 14 in the front-rear direction (axial direction of the cylinder) is inhibited by the hook locking groove 36b and the like, and the movement in the lateral direction is inhibited by the socket holding portion 36a and the like.
[0020]
When the cigarette socket 10 is used, the plug 12 (FIG. 3) is inserted into the socket 14 from the plug insertion hole 46 of the case 18. Then, the first contact 22 a protruding from the side surface of the plug 12 is brought into contact with the inner surface of the cylindrical body 26, and the second contact 22 b protruding toward the insertion end side of the plug 12 is brought into contact with the terminal plate 16. As a result, power can be supplied from the cigarette socket 10 to the plug 12.
[0021]
According to this embodiment, since the cylindrical body 26 is divided into the first divided body 26a and the second divided body 26a, the plating conditions on the inner and outer surfaces are almost the same, and these inner surfaces are homogeneous and have pinholes. Therefore, it is possible to prevent the occurrence of rust during use from the beginning.
[0022]
Moreover, since each 1st division body 26a and each 2nd division body 26b are each integrally formed, it is not necessary to connect the cylinders 26 with a connecting rod. Therefore, the contact failure accompanying the connection failure of the cylinders 26 can be eliminated.
[0023]
In the socket 14 in the above-described embodiment, the lower socket piece 14a and the upper socket piece 14b are connected by welding the connecting portion 30a and the connecting portion 30b. For example, the socket shown in FIG. 50, the lower socket piece 50a and the upper socket piece 50b may be connected by engagement. In this case, the notch 52a, the engaging protrusion 54a, and the engaging hole 56a are formed in the lower socket piece 50a, and the notch 52b, the engaging hole 54b, and the engaging protrusion 56b are formed in the upper socket piece 50b. . Then, the notch 52a and the notch 52b are fitted to each other, the engagement protrusion 54a and the engagement hole 54b are engaged, and the engagement hole 56a and the engagement protrusion 56b are engaged.
[0024]
Further, for example, like the socket 58 shown in FIG. 5, the first divided body 26a of one cylindrical body 26 and the second divided body 26b of the other cylindrical body 26 are integrally formed to form the socket pieces 58a and 58b. May be configured. In this case, in each socket piece 58a and 58b, the inner surface of the 1st division body 26a and the inner surface of the 2nd division body 26b which were integrally formed mutually become concave in a different direction.
[0025]
In the socket 58, a cutout 60a is formed in the lower socket piece 58a, a cutout 60b is formed in the upper socket piece 58b, and the cutout 60a and the cutout 60b are fitted together. However, also in the socket 58, a connection part may be formed in each socket piece 58a and 58b, and connection parts may be connected (welding or adhesion | attachment).
[0026]
For example, as shown in FIG. 4, the lower case 18 a and the upper case 18 b may be connected by screws 62. In this case, a through hole 64 is formed in the lower case 18a, a female screw (not shown) is formed in the upper case 18b, and a screw 62 inserted into the through hole 64 from below the lower case 18a is screwed into the female screw. Combined.
[0027]
Furthermore, the number of the cylinders 26 may be one, or may be three or more.
[0028]
【The invention's effect】
According to the present invention, since the cylinder is divided into a plurality of divided bodies, the plating conditions on the inner and outer surfaces of the divided bodies are substantially the same, and it is uniform and sufficient for the inner surfaces of the divided bodies constituting the cylinder. It is possible to apply plating with a proper thickness. Therefore, it is possible to prevent the occurrence of pinholes based on the insufficient plating thickness, and to prevent rusting from the pinholes and the insufficient plating thickness. Further, when at least one divided body constituting the first cylindrical body and at least one divided body constituting the second cylindrical body are integrally formed, it is necessary to electrically connect the cylindrical bodies with a connecting rod. Since there is no contact failure can be prevented.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an embodiment of the present invention.
FIG. 2 is an illustrative view showing a socket in the embodiment of FIG. 1;
FIG. 3 is a perspective view showing a vehicle-mounted cigarette socket and plug.
FIG. 4 is an exploded perspective view showing another embodiment of the present invention.
FIG. 5 is an exploded perspective view showing another embodiment of the present invention.
FIG. 6 is an exploded perspective view showing a conventional technique.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Cigarette socket 12 for vehicle-mounted ... Plug 14 ... Socket 16 ... Terminal board 18 ... Case 26 ... Cylindrical body 26a ... 1st division body 26b ... 2nd division body

Claims (3)

First and second cylinders having openings at both axial ends and plated on the inner surface and contacting the first contact that protrudes from the side surface of the plug, and one of the openings facing the other A terminal plate that comes into contact with a second contact that protrudes toward the insertion end of the plug inserted from the opening, and a case that houses the first and second cylinders and the terminal plate. For cigarette socket,
The first and second cylinders are divided into a plurality of divided bodies by dividing the side walls of the first and second cylinders by a dividing line from one opening to the other opening, and An in-vehicle cigarette socket , wherein at least one of the divided bodies constituting the first cylinder and at least one of the divided bodies constituting the second cylinder are integrally formed . The in-vehicle cigarette socket according to claim 1, wherein inner surfaces of the respective divided bodies formed integrally with each other are recessed in the same direction. The in-vehicle cigarette socket according to claim 1, wherein inner surfaces of the respective divided bodies formed integrally with each other are recessed in different directions.

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