JPH04106865U - connector type light bulb socket - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] To drain water that has entered into the connector cylinder that constitutes the connector part of a connector-type light bulb socket, and to eliminate the electrical problems of connector terminals caused by the accumulation of water. Prevent short circuit. [Structure] A concave groove 13 is formed along the cylinder axis on the inner surface of a connector tube 9 constituting the connector portion 3 of a connector type light bulb socket. This groove 13 has a bottom surface gradually inclined toward the outer end of the connector tube 9, and when an external connector is fitted into the connector tube 9, the connector tube 9 passes through the groove 13.
The inside and outside of the connector tube 9 are communicated with each other, and water that has entered the connector tube 9 through the groove 13 is discharged to the outside.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention supports a light bulb and uses a connector to supply electricity to the light bulb. Regarding connector-type light bulb sockets.

0002

[Conventional technology]

This type of light bulb socket has a socket part that serves as a light bulb socket that supports the light bulb. , and a connector part that connects to an external connector to make an electrical connection to the light bulb. For example, as shown in FIG. A socket cylinder 4 into which the base part 21 of the ball 20 is fitted is provided, and the inside of this socket cylinder 4 is A socket part 2 is configured by supporting a plurality of contacts 5 in the socket part. Also, Howe A connector tube 9 into which an external connector 30 is fitted is provided at the other end of the housing 1. a male connector end formed integrally with each of the contacts 5 in the connector tube 9; The connector portion 3 is configured by arraying and supporting the children 10.

0003 Then, the external connector 30 is fitted into the connector tube 9, and the By fitting the girder female connector terminal 31 into the male connector terminal 10, electric power can be supplied. making an emotional connection. In addition, the flange 6, engagement protrusion 7, and gasket 8 provided integrally with the housing 1 It has a bayonet structure and is used when attaching a light bulb socket to a lamp.

0004

[Problem that the idea aims to solve]

In such a connector type light bulb socket, the external connector 30 is connected to the connector tube 9. In order to be able to insert and remove the connector tube 9 and the external connector 30, It is usually designed and manufactured so that a minute gap is formed between it and the outer surface. death Therefore, the inside of the connector tube 9 communicates with the outside through this gap, and the electrical If the bulb socket is exposed to rainwater, etc., such as when the bulb socket is used in a vehicle light. Sometimes, water tends to enter the inside of the connector tube 9 through this gap. stop Once water enters the connector tube 9, its surface tension will close the tiny gap. It becomes difficult for the connector to come out from the tube. For this reason, water remains inside the connector tube 9, This water gradually spreads between each connector terminal 10 and 31, and electrical current is passed between each connector terminal. A problem arises in that it causes a short circuit. The purpose of this invention is to quickly drain the water inside the connector and prevent water from accumulating. An object of the present invention is to provide a connector type light bulb socket that prevents electrical short circuits.

[0005]

[Means to solve the problem]

The connector type light bulb socket of this invention has a connector end that is electrically connected to the socket part. A concave groove is provided on the inner surface of the connector tube surrounding the child. This groove is located outside the connector tube. It is preferable that the bottom surface is sloped toward the end.

[0006]

[Effect]

According to the present invention, the water inside the connector tube is removed through the groove provided on the inner surface of the connector tube. It becomes possible to discharge to the Furthermore, by sloping the bottom of the groove, water can be easily drained.

[0007]

【Example】

Next, embodiments of the present invention will be described with reference to the drawings. Figures 1 and 2 are based on this discussion. An embodiment of the plan is shown, and FIG. 1 is a cross-sectional view thereof, and a cross-sectional view taken along line A-A in FIG. FIG. 2 is a side view of the connector section. In these diagrams, the light bulb socket is configured The housing 1 has one end formed into a cylindrical shape and a socket part 2 formed therein, The other end side is formed into a substantially rectangular cylindrical shape, and the connector portion 3 is constituted here.

[0008] In the socket part 2, the base of the wedge base type light bulb 20 shown by the chain line in FIG. A socket cylinder 4 defining a gap into which the part 21 is fitted is formed, and the socket cylinder 4 is There are three contacts 5 at different positions inside (one contact is not shown in Figure 1). (not supported). Each of these contacts 5 is an elastic conductive piece. The contact piece 5a provided on a part of the wedge light bulb 20 is formed by bending the wedge light bulb 20. Contact piece portion 5b that contacts the electrode provided on the base portion 21 with elastic force and provided on another portion is made to protrude outside the socket tube 4. One of the three contacts 5 is a light bulb Twenty negative electrodes are contacted, and the other two are contacted with different positive electrodes, respectively. Also, socket In part 2, a flange 6 and an engaging protrusion 7 are each integrally formed on the outer peripheral surface of the housing 1. These are the well-known bayonets used to attach light bulb sockets to lamps. The socket mounting part is constructed with a straight structure. 8 is a gasket fitted and attached to the flange 6. It is a cut.

[0009] On the other hand, the connector section 3 provided at the other end of the housing 1 is constructed by the housing 1. It has a rectangular cylindrical connector tube 9, and there are three The male connector terminals 10 are arrayed and supported. These male connector terminals 10 , are each integral with the three contacts 5, and are the inner bottom wall of the connector portion 3, in other words. Then, each contact is inserted through the partition wall 11 that separates the socket part 2 and the connector part 3. The other end of the port 5 projects into the connector tube 9. Therefore, these male connectors It goes without saying that the terminal 10 is composed of one negative terminal and two different positive terminals. Needless to say, as shown in FIG. When viewed from above, they are arranged in a ``ni'' shape. Note that the partition wall 11 is filled with a sealing material 12. This prevents water and the like from entering the socket part 2 from the connector part 3.

0010 Furthermore, the connector tube 9 of the connector section 3 has its own shape, as shown in a perspective view in FIG. Two opposing locations 9a on the inner wall surface are made to protrude outward along the cylinder axis direction, and this protrusion is A groove 13 is formed inside the recessed portion. This groove 13 is located at the outer end of the connector tube 9. The groove bottom is configured to be gradually inclined outward along the groove. Also, the above connection A part of the handle tube 9 projects outward to constitute an engaging piece 14, and this engaging piece 14 has a A hook-shaped engagement piece (not shown) of the external connector 30 (see FIG. 4) that is fitted into the connector portion 3 (not included) is engaged to prevent the external connector from falling off.

[0011] Therefore, according to this configuration, as shown in FIG. Insert the external connector 30 into the connector tube 9 and connect it to the male connector terminal 10. When the air connection is made, there is a gap between the outer surface of the external connector 30 and the inner surface of the connector tube 9. A passage is defined by a concave groove 13 . This passage is inside and outside the connector tube 9. and are communicated along the inner surface of the connector cylinder 9 in the cylinder axis direction. This allows the light bulb socket to Even if water gets into the connector tube 9 due to water splashing on the kit, this water will be removed as shown by the arrow. It passes through the concave groove 13 and is discharged out of the connector tube 9 as shown in FIG. At this time, the groove 13 Since the bottom of the groove is sloped toward the outer end of the connector tube 9, water flows through the connector due to gravity. It flows in the groove toward the outer end of the connector tube 9, making it easier to discharge. Also, concave The depth and width of the groove 13 are determined by the distance between the outer surface of the external connector 30 and the inner surface of the connector tube 9. Since the size is sufficiently large compared to a small gap, water can be drained due to surface tension. It will never go away.

0012 In this embodiment, the grooves 13 are provided at two opposing locations on the connector tube 9. Therefore, depending on the installation condition of the light bulb socket, which groove is placed on the upper or lower side. Also, one groove allows water to be drained. Also, when using a light bulb socket When the vertical direction is determined, a groove is formed on the inner surface of the lower side. do it. Alternatively, grooves may be provided at three or more locations. Also, the cross section of the concave groove is semicircular. It can be configured in various shapes such as a shape, a triangle, etc. Furthermore, all of the above embodiments are suitable for light bulb sockets that support wedge-based light bulbs. This example shows a connector-type light bulb socket that supports a light bulb with a normal base structure. Needless to say, this method can also be applied in the same way.

[0013]

[Effect of the idea]

As explained above, the present invention uses a connector that surrounds the connector terminal provided in the socket. A concave groove is provided on the inner surface of the connector tube along the axial direction of the connector tube. Even when the external connector is inserted into the connector cylinder, the connector cylinder can be inserted through this groove. The inside and outside can be communicated, and the water that has entered inside the connector cylinder is drained outside by the groove. This prevents water from accumulating inside the connector cylinder, and reduces the voltage at the connector terminals. This has the effect of preventing short circuits.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of one embodiment of the present invention, and is a cross-sectional view of A-A in FIG.
It is an A-line sectional view.

FIG. 2 is a side view of the connector section in FIG. 1;

FIG. 3 is a perspective view of the connector section.

FIG. 4 is a cross-sectional view of the main parts in a state where an external connector is fitted.

FIG. 5 is a sectional view of a conventional connector type light bulb socket.

[Explanation of symbols]

1 Housing 2 Socket part 3 Connector part 4 Socket tube 5 Contact 9 Connector tube 10 Male connector terminal 13 Concave groove

Claims (2)

[Scope of utility model registration request] 1. A connector-type light bulb socket comprising a socket portion for supporting a light bulb, and a connector portion for electrically connecting an external connector by disposing a connector terminal electrically connected to the socket portion, wherein the connector terminal is electrically connected to an external connector. A groove is formed along the axis of the cylinder on the inner surface of the surrounding connector cylinder into which the external connector is fitted, and when the external connector is fitted into the connector cylinder, the inside of the connector cylinder is connected to the outside through the groove. A connector type light bulb socket characterized by being configured to communicate with each other. 2. The connector type light bulb socket according to claim 1, wherein the bottom surface of the concave groove is inclined toward the outer end of the connector tube.