JPH0530989Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a rechargeable lighting lamp, and more specifically, it has a built-in rechargeable battery that is powered by a car battery via a cigarette lighter socket. This invention relates to a rechargeable lighting lamp that can be removed from a cigarette lighter socket and turned on while being carried around.

[Prior Art] This type of vehicle interior light is conventionally described in, for example, Japanese Utility Model Application Publication No. 59-117551.

This conventional technology is an interior light for a vehicle that includes a rechargeable battery that is charged by a power source and a handy lamp bulb that is lit by the rechargeable battery, and is detachably attached to a ceiling surface.

In addition, the one described in Utility Model Application Publication No. 56-60639 is a combination of two
a cylindrical portion and a terminal portion extending horizontally outward from each of the disk portions, a light bulb disposed within the cylindrical portion, and an automobile light bulb formed on the outer periphery of the terminal portion. A terminal having a shape matching that of a cigarette lighter terminal, a conductor plate provided on each of the two disc parts, a conductive slider that slides on the conductor plate, these conductor plates, the conductive slider, and the light bulb. and lead wires respectively connecting the terminals of the terminal portion,
A circuit is formed such that when the two disc parts are rotated with respect to each other, the light bulb is lit within a predetermined rotation range in which the cylindrical part is separated from the terminal part. This is an automotive interior light featuring:

[Problem to be solved by the invention] Among the above-mentioned conventional technologies, the former is a removable ceiling light that is installed on the ceiling of a car interior and is used by inserting a power receiving plug at the base of the light into a cigarette lighter socket. It is very impossible to charge the battery and then directly illuminate a map etc. at hand by operating a switch while it is in this charged state.

In addition, in the conventional technology described above, it is necessary to install a detachable part for the handy lamp with a special contact piece on the ceiling of the vehicle, which results in a more complicated structure and higher cost than the one in which a cigarette lighter socket is applied as in the invention of the present invention. There is a problem.

Furthermore, the part indicated by reference numeral 15 in this conventional example is probably a charging circuit, but since there is no lamp or light emitting diode to indicate charging in the circuit diagram in Figure 7 of the above publication, it is difficult to tell whether charging is in progress or not. Furthermore, when the handy lamp is turned off, it is difficult to know where it is in the car at night, making it very inconvenient to use.

Moreover, if the contact parts are mistakenly brought into contact with each other with metal or the like, the battery itself will be shot through the resistor R and the circuit 15, which is dangerous.

Furthermore, in the latter of the above-mentioned conventional examples, the cylindrical negative electrode fitting has no unevenness on its inner surface, and when the cigarette lighter is inserted, it is held only by flat frictional force, and cannot be held in a male-female mating manner. In addition to this problem, although the structure of the socket is standardized, the structure of the holding contact piece varies depending on the make and model of the car, and if the insertion direction is different, the contact plate and the holding contact piece on the socket side may be connected to the power receiving case. Since the lamp contacts only the inclined side surface of the lamp, there is a problem that the lamp may fall out of the socket due to vibration.

In addition, this conventional example uses a cigarette lighter, not a lighting lamp, but uses light from a lamp installed inside the cigarette lighter socket to illuminate a lighting ring around the cigarette lighter socket, making it easy to see where the cigarette lighter is located even at night. It is a display device that emits light and cannot illuminate other areas.

In order to eliminate the above-mentioned problems, this invention secures this plug-in state by inserting the power receiving plug part into the existing cigarette lighter socket on the car's dashboard, etc., and also charges the rechargeable battery. To enable a lamp to be lit even during charging, and to enable portable lighting use by removing it from a socket.

[Means for Solving the Problems] The purpose of the above-mentioned invention is to create two insulating hollow cases 1, 1 made of plastic molded in a substantially F-shape, and a cylindrical shape of each hollow case 1, 1. A cigarette lighter socket contact 21 is housed in the contact accommodating portions 12b, 12b together with a spring 22 through semicircular notches 16a, 16b formed at one end, and is disposed so as to be protruded by the spring 22, and both hollow cases 1 , 1 of the other hollow case 1 so that a portion thereof protrudes from the through holes 14a, 14a formed in the side surfaces of the other hollow case 1.
A contact plate 24 for a cigarette lighter socket made of a conductive spring material disposed on one end side of the cigarette lighter socket 2a.
and the battery accommodating portion 12a of the one hollow case 1.
The outer periphery of the cylindrical base of the hollow cases 1, 1 into which the terminal plate 34, which is disposed opposite the base of the contact plate 24 on the other end side, and the holding contact piece 73 formed on the cigarette lighter socket 7 are inserted. A plurality of locking grooves 19 formed all around the
1a, 191b and the contact plate 24
The battery accommodating portion 12a between these plates and the battery accommodating portion 12a of the other hollow case 1 are in contact with the base of the terminal plate 34 and the terminal plate 34, respectively.
The rechargeable batteries 6, 6 housed therein, and the terminal plate 37 which is integrated with the terminal plate 34, are fitted into the other end of the trapezoidal shape of the hollow cases 1, 1 so that one pole is connected to the terminal plate 37. As the light bulb 32 held between the reflector part 41 of the cap 4 and the switch bullet 31 whose one end is in contact with the other pole of the light bulb 32 move, the light bulb 31
Terminal 3 arranged at a position where the other end approaches and separates
3, and is connected between the terminal 33 and the terminal plate 34, and is exposed from a through hole 14b provided in the upper inclined part of the above-mentioned F-shaped hollow case 1, 1 on the side where the lamp bulb 32 is attached. A charging protection element 5 is connected between a light emitting diode 36 for charging and backflow prevention, and a conductive piece 23 connected to the cigarette lighter contact 21 via the terminal 33, the contact plate 24, and the spring 22. This is achieved by respectively providing a stand S which can be raised and lowered and whose both ends are inserted into the lower inclined part on the side where the lamp bulb 32 is attached.

[Function] By inserting the base of the hollow case into the cigarette lighter socket, the contacts and contact plate arranged at this base can be connected to the car battery through the cigarette lighter socket, and the rechargeable battery inside the hollow case can be connected to the contacts and the contact plate, respectively, through the cigarette lighter socket. It can be charged by sequentially passing through the spring, conductive piece, charging protection element, lead wire, charging and backflow prevention light emitting diode, and contact plate.

Then, by pressing the switch bullet and making contact with the terminal, the battery is rechargeable, starting from the positive electrode, passing through the terminal plate, terminal plate, light bulb, switch bullet, terminal, charging protection element, and contact plate in sequence. Current can flow through the negative terminal of the rechargeable battery to light the lamp bulb.

Note that the above lighting is lit while the rechargeable battery is generating an electromotive force, regardless of whether it is being charged or not.

[Example] Examples will be described with reference to the drawings.

First, the basic structure of this invention is as shown in Fig. 1 and Fig. 2 a and b, an insulating hollow case 1 made of plastic molded in two parts in a substantially square shape, and one end of this hollow case 1. A cigarette lighter socket contact 21 that can be protruded by a spring 22, and a leaf spring material that protrudes from a through hole 14a formed in the side surface of the hollow case 1 as shown in FIG. A terminal plate 34 is provided in the hollow case 1 at a location facing the base of the contact plate 24 as shown in FIG. 3, and the base of the contact plate 24 and the terminal plate 34 are brought into contact with each other. A rechargeable battery 6 is housed in the hollow case 1 between these plates 24 and 34 as shown in FIGS. 2b and 3, and one pole is connected to the terminal plate 34 as shown in FIG. A terminal 33 connected to and separated from the switch bullet 31 connected to the other pole of the lamp bulb 32 and also connected to the contact plate 24 as shown in FIG. 4, and a terminal 33 connected to the spring 22. As shown in FIG. 4, a charging protection element 5 and a backflow prevention light-emitting diode 36 for charging and backflow prevention are inserted and connected in series between the conductive piece 23 and the terminal plate 34, which are in elastic contact as shown in FIG. It is equipped with.

Next, the above configuration will be explained in further detail.

In other words, this idea is shown in Figures 1 and 2 a and b.
As shown in the figure, the hollow case 1 has a battery storage part 12a that stores two cylindrical AA rechargeable batteries in series, a charging protection element 5 such as a three-terminal regulator, and a power receiving plug part. a contact accommodating part 12b in which the contacts 21, springs 22, and conductive pieces 23 constituting the part 2 are attached;
A continuous recess 1 divided into a light bulb accommodating portion 12c that accommodates a switch bullet 31 and a light bulb 32 constituting a trapezoidal light body portion 3 and a terminal 33.
Two case forming bodies 11a and 11b forming 3
It is formed of.

And the battery accommodating part 1 of the case forming body 11a
A through hole 14a exposing a part of the contact plate 24 is provided on the side surface of the contact plate 2a, and a semicircular notch 16a from which the contact protrudes is provided in the end plate 15a of the contact accommodating portion 12b.

Further, in the lamp accommodating portion 12c bent in the F-shape, a through hole 14b for exposing a light emitting diode 36 for charging and preventing backflow is made of a U-shaped case component, and a through hole 14b for attaching the LED 36 is made of a U-shaped case component. Part 12
A semicircular notch 16b is provided in the end plate 15b of c.

Further, the case forming body 11a and the battery accommodating portion 12a of the case forming body 11b that is paired with the case forming body 11a and the lamp accommodating portion 12c bent in a F-shape are provided with the case forming body 11b.
Similar to a, charging and backflow prevention light emitting diode 36
A through hole 14b for attaching the lamp is made of a U-shaped case component, and a semicircular notch 16 is formed in the end plate 15b of the lamp accommodating part 12c.
b, holding the lamp bulb 32 and the conical reflector part 4
A cap mounting collar 17 for attaching a cap 4 having a cap 1 is provided protrudingly.

In addition, a through hole 18 for attaching a switch bullet 31 is provided in the lamp accommodating portion 12c of one case forming body 11b.
are provided, and both case forming bodies 11a, 11b
has contact plate 24 and terminal 3.
A screw hole 19 for integrating the support pieces 18a, 18b supporting the power receiving plug 3, a screw hole 19 for integrating the two forming bodies, a pin for positioning, and a pin insertion hole are provided. At least one locking groove 191a, 191b into which the formed holding contact piece 73 locks is provided around the entire circumference of the hollow case.

The power receiving plug part 2 includes case forming bodies 11a, 11
A part of the hat-shaped contact 21 is exposed from the hole formed by the two notches 16a by the conductive piece 23 attached to the contact accommodating part 12b of b and the spring 22 inserted in the contact accommodating part 12b. As shown in FIGS. 3 and 4, the input terminal of a charging protection element 5 such as a three-terminal regulator or resistor attached to the housing part is connected to the conductive piece 23, and the ground terminal is connected to the conductive piece 23 in a substantially mountain-shaped shape. It is connected to the contact plate 24, and its output terminal is connected by a support piece 18a to a terminal 33 mounted inside the battery housing section 12a.

Rechargeable battery 6 accommodated in battery accommodating section 12a
are connected in series, and the negative electrode of one battery is connected to the contact plate 24, and the positive electrode of the other battery is supported by the support piece 18c and connected to the terminal plate 34 fixed to the case forming body 11a.

One terminal of the charging/backflow prevention light emitting diode 36 attached to the through hole 14b is connected to the output terminal of the charging protection element 5 via the lead wire 35, and the other terminal is connected to the output terminal of the charging protection element 5 through the through hole 18 so that the knob exits to the outside. These are each connected to one terminal of a switch bullet 31 attached to the switch.

The light bulb 32 attached between the pair of support pieces 18c of the light bulb accommodating portion 12c is connected to the terminal plate 37 by the cap 4 which is fitted into the cap mounting collar 17, and the terminal plate 37 comes into contact with the eyelet constituting the cap of the light bulb 32. As the bullet piece 31 moves, it comes into contact with a terminal 33 and lights up. Note that the code S
The part indicated by is the stand member, which is formed from a thin round bar in the shape of a square.

The rechargeable lighting lamp A of this invention is constructed as described above, and the two case forming bodies 11a and 11b are aligned using the pin and the pin insertion hole, and by screwing the screw into the screw hole 19, the first It is configured as shown in the figure.

As shown in FIG. 4, when the power receiving plug part 2 side is inserted into the cigarette lighter socket 7 of the vehicle, the contact 21 is connected to the positive electrode 71 of the socket by the spring 2.
2, the contact plate 24 is also in elastic contact with the negative electrode 72, and the input terminal and ground terminal of the charging protection element 5 are mounted on the vehicle via the socket 7. Batsuteri
12V).

The output terminal of the charging protection element 5 is connected to the positive electrode of the rechargeable battery 6 via a light emitting diode 36 for displaying charging which also serves as backflow prevention, and the ground terminal is connected to the negative electrode, so that the output of the charging protection element 5 is 5V. Even if there is a voltage drop of 2V at the light emitting diode 36, an output voltage of 3V is applied to both ends of the rechargeable battery 6 (1.2V x 2) to charge it.

If you want to see the map from the driver's seat, touch the switch bullet 31 to the terminal 33, the light bulb 32 will light up, and the hollow case 1 will be shaped like an F, so you can find the optimal lighting position. The map is illuminated by the beam.

This rechargeable lighting lamp A can be pulled out from the cigarette lighter socket 7 and carried.In this case, if it is used normally and then inserted into the cigarette lighter socket again after use, it will remain floating while the vehicle is operating. It can be charged and used as a pine lamp, as well as for troubleshooting problems in vehicles and as a warning light.

In this invention, the inclined surface 1 of the power receiving plug part 2
9, at least one or two V-shaped locking grooves 191a, 191b are formed.

With this configuration, the cigarette lighter socket 1 can be opened as shown in FIGS.
When the V-shaped bent end of the holding contact piece 73 is inserted into the locking groove 191a (when the insertion depth is shallow due to the socket) as shown in FIGS. It engages in the locking groove 191b) to mechanically maintain the electrical connection between the power receiving plug part 2 and the socket 7, and is released from the cigarette lighter socket 7 of the rechargeable lighting lamp A by vibration of the vehicle. can be prevented from slipping out.

When pulling out the rechargeable lighting lamp A from the cigarette lighter socket 7, make sure that the locking grooves 191a and 191b are V-shaped and that the end of the holding contact piece 73 is V-shaped.
Since it is bent into a letter shape, by pulling it with a little force, the contact becomes a point contact, so it can be pulled out easily.

In addition, as shown by the chain line in FIG. 3, the stand member S can be pulled out and used in an obliquely erected state.

[Effects of the invention] Since this invention is configured as described above, it produces the effects described below.

In other words, the charging and backflow prevention light emitting diode 36
Since a light emitting display is displayed to indicate that charging is in progress, the location of the lighting lamp itself can be easily identified in the car at night, and backflow of current from the rechargeable battery 6 in the hollow case 1 toward the power receiving plug is prevented. Therefore, in use, the contact plate 2 of the power receiving plug 2 to be inserted into the cigarette lighter socket
Even if the battery 4 and the contact 21 are mistakenly shot with another member, the internal rechargeable battery 6 will not be shot due to the backflow prevention effect of the charging and backflow prevention light emitting diode 36, and no explosion accident will occur.

Furthermore, in this invention, the rechargeable battery 6 is inserted into the cigarette lighter socket and kept charged at all times, so there is no need to suddenly run out of battery and the battery cannot be used. Even when a cigarette lighter is inserted, it is possible to illuminate a map etc. in the optimal lighting position, and when removed from the cigarette lighter socket, it can not only be used as a portable lighting lamp, but also has a compact structure, making it easy to carry and hold. In addition, it comes with a stand, so it can be used for multiple purposes, such as placing it on the floor or hanging it when working with both hands.The light bulb is held between the cap and the terminal plate, so you can easily remove the cap. This has the advantage of making it easier to replace the light bulb.

[Brief explanation of the drawing]

Figures 1 to 6 a and b all show an embodiment of this invention, with Figure 1 being an external view of a rechargeable lighting lamp and cigarette lighter socket, and Figures 2 a and b
Figure 3 is a vertical sectional view of the central part of the rechargeable lighting lamp, Figure 4 is a schematic diagram of the electrical system connections, and Figure 5 is a perspective view of the rechargeable lighting with the hollow case open. FIG. 6a is a cross-sectional view of the same state as FIG. 5, and FIG. 6b is a vertical cross-sectional view taken along line AA in FIG. 6a. 1...Hollow case, 24...Contact plate, 5...Charging protection element, 31...Switch bullet piece, 6...Rechargeable battery, 32...Light bulb, 7...
...Cigarette lighter socket, 33...Terminal,
14a...Through hole, 34...Terminal plate,
21...Contact, 22...Spring, 23
...Conductive piece, 36...Charging and backflow prevention light emitting diode, 191a, 191b...Latching groove.

Claims (1)

[Scope of utility model registration request] The insulating hollow cases 1, 1 are made of plastic and molded into two parts in an approximately F-shape, and the contact accommodating portion 12b,
A cigarette lighter socket contact 21 is housed in the casing 12b together with a spring 22 and can be protruded by the spring 22, and through holes 14a and 1 are formed in the sides of both the hollow cases 1 and 1.
a contact plate 24 for a cigarette lighter socket made of a conductive spring material disposed on one end side of the battery housing part 12a of the other hollow case 1 so as to partially protrude from the battery housing part 4a; and a battery housing part of the one hollow case 1. A terminal plate 34 disposed opposite the base of the contact plate 24 on the other end side of the terminal plate 12a, and the hollow cases 1, 1 into which the holding contact piece 73 formed on the cigarette lighter socket 7 is inserted.
A plurality of locking grooves 191a, 191b are formed all around the outer periphery of the cylindrical base, and the base of the contact plate 24 and the terminal plate 3.
4 in contact with each of these plates 2
4, 34 and the rechargeable batteries 6, 6 stored in the battery accommodating part 12a of the other hollow case 1, and the terminal plate 34.
Terminal plate 37 which is integrated with 1
A light bulb 32 is sandwiched between the reflector portion 41 of the cap 4 fitted to the other end of the trapezoidal shape of the hollow cases 1, 1 so that the poles are connected, and one end is connected to the other pole of the light bulb 32. Switch bullet piece 3 in contact with
a terminal 33 disposed at a position where the other end of the bullet 31 approaches and separates as the bullet 31 moves; and a terminal 33 connected between the terminal 33 and the terminal plate 34; A through hole 1 provided in the upper sloping part on the mounting end side of the lamp bulb 32 of 1.
A light emitting diode 36 for charging and backflow prevention, which is arranged to be exposed from 4b, is connected between the terminal 33 and the conductive piece 23, which is connected to the cigarette lighter contact 21 via the contact plate 24 and the spring 22. This rechargeable lighting lamp is provided with a charging protection element 5, and a stand S that can be raised and lowered, with both ends inserted into the lower inclined part on the mounting end side of the lamp bulb 32.