JPS61239541A - Single base fluorescent lamp - Google Patents

Abstract

PURPOSE:To enable reuse through replacement of any one of the starting circuit or lamp upon fault by making such that two base pins will project to realize double pin type lamp when fixing the starting unit cover to the base. CONSTITUTION:A pair of stopping recesses 5, 5 are formed in the circumferential wall of base 2 of 4-pin type single base fluorescent lamp while a clearance recess 6 for fitting the top section of glow lamp 10 is formed in the center of bottom wall. The starting unit cover 7 is fixed dismountably to the base 2 and upon fixing of said cover 7, 4-pin type single base fluorescent lamp will become 2-pin type single base fluorescent lamp while upon removal of said cover 7 from 2-pin type single base fluorescent lamp, 4-pin type single base fluorescent lamp is realized. When it is required to replace the starting circuit or lamp while using 4-pin type single base fluorescent lamp as 2-pin type lamp, any one of the starting unit cover or the lamp may be replaced.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention provides a single-cap type fluorescent lamp that can be used as either a 4-pin type or a 2-pin type equipped with a fetal movement circuit, as required. Regarding lamps.

[Technical background of the invention]

In a fluorescent lamp, the bulb is bent into a U-shape, H-shape, annular shape, serpentine shape, or saddle shape, and both ends of the bulb are brought close to each other, and a single cap is common to both ends. Conventionally, so-called single-capped fluorescent lamps have a total of four cap pins protruding from the cap, and these cap pins are connected to electrodes provided at each end of the bulb. It has a solid structure.

Fluorescent lamps with this type of configuration are called 4-pin types. Of the four cap pins mentioned above, one of the two cap pins connected to this is connected to the starting circuit, and the remaining two cap pins are connected to the power supply via the ballast. It has become so.

Therefore, this kind of 4-bisi type single-capped lamp requires a starting circuit to be installed on the appliance side.

On the other hand, when a starting circuit is built into the lamp white body, this starting circuit is connected in series to one of each electrode, so there are only two cap pins protruding from the cap, and this type of lamp is a 2-bis type single cap. It is called a gold-shaped fluorescent lamp.

This two-bit type, single-capped fluorescent lamp does not require a starting circuit on the appliance side, and has the advantage of simplifying the appliance.

[Problems with background technology]

Conventionally, the above-mentioned 4-pin type and 2-pin type were manufactured, sold, and used separately.

However, when using two different types of lamps in this way, the manufacturer must manufacture two completely separate types of lamps, so manufacturing management, inventory management, etc. are required for each type.
This has the drawback of increasing the cost by twice as much, and it is also troublesome for the user to judge which type of equipment can be used before purchasing.

In addition, conventional two-pin lamps had the disadvantage that if the built-in starting circuit broke down, the entire lamp had to be replaced, making it expensive.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to enable a single lamp to be used by selecting either a 4-pin type or a 2-pin type; A single-capped fluorescent lamp has been developed that is less expensive, has increased flexibility in use, and can be used as a two-way type by simply replacing either one if the starting circuit or lamp breaks down. This is what we are trying to provide.

[Summary of the invention] ゛In order to achieve the above-mentioned object, the present invention provides a four-piece cap with four cap pins protruding from the cap.
In a single-cap type fluorescent lamp of the pin type, a starting unit cover is removably attached to the cap, and the starting unit cover covers one of the cap pins connected to each electrode. It has receiving terminals into which pins are fitted, and also accommodates starting circuit components connected to these receiving terminals, and when the starting unit cover is attached to the cap, the two cap pins protrude. It is characterized by being a 2-pin type with a starting unit [・depending on whether or not a cover is used].
It is possible to select either a 2-pin type or a 4-pin type for use.

[Embodiments of the invention]

The present invention will be described below based on an embodiment shown in FIGS. 1 to 6.

FIG. 1 shows an example of Batani's single-capped fluorescent lamp used as a 4-pin type, and 1 is a glass bulb formed into a substantially U-shape. This bulb 1 has both ends close to each other, and well-known electrodes (not shown) are arranged inside each end.

Further, a phosphor coating is formed on the inner surface of the bulb 1, and a predetermined amount of mercury and a starting rare gas are sealed inside the bulb 1.

At both ends of the valve 10, there is a symbol ``='' extending over both.
A cap 2 is attached. The cap 2 is made of an electrical insulator such as synthetic resin, and has a total of four cap pins 3a, 3b, lJa', and 4b protruding from its bottom wall. One pair of cap pins 3a.

3b is connected to both ends of one electrode provided at one end of the bulb 1, and the other pair of cap pins 4a and jib are connected to the other end of the bulb 1. The other electrode is connected to both ends of the other electrode.

In addition, in this embodiment, these four base pins 3a.

3b, 4a, and 4b are arranged in a straight line on the bottom wall of the base 2.

Therefore, this U-shaped light lamp is a 4-pin type single-capped light lamp.

The four-pin single-end fluorescent lamp shown in FIG. 1 has the following structure added so that it can be used as a two-pin type. That is, in the base 2,
A pair of locking recesses 5.5 are formed in the peripheral wall, and an escape recess 6 into which the top of a lighting tube 10 (described later) can be fitted is formed in the center of the bottom wall.

,! The bepin type single-capped fluorescent lamp shown in FIG. 1 with such a configuration can be changed to a two-pin type fluorescent lamp shown in FIG. 2.

That is, a starting unit cover 7 is removably attached to the cap 2, and when the starting unit cover 7 is attached, the 4-pin single-cap fluorescent lamp becomes a 2-pin single-cap fluorescent lamp. It becomes a light lamp. Conversely, 2
When the fetal movement unit cover 7 is removed from a pin type single cap fluorescent lamp, it changes to a 4 pin type single cap fluorescent lamp.

The starting unit cover 7 will be explained based on FIGS. 4 to 6. The starting unit cover 7 is made of an electrical insulator such as synthetic resin, and is formed into a substantially rectangular box shape in this embodiment. This starting unit cover 7 has claws 8, 8 integrally protruding from both sides thereof to be removably hooked to the locking recesses 5, 5 formed on the peripheral wall of the base 2. There is.

Further, the starting unit cover 7 is provided with conductive receiving terminals 9 (1, 9b) on one end surface thereof, which are removably fitted with the base pins 3a, 4a, and in the center thereof, starting circuit components are provided. A lighting tube 10 is housed therein.Lead wires 11a and llb of this lighting tube 10 are connected to the receiving terminals 9a and 9b, respectively.

When the starting unit cover 7 having such a configuration is hooked onto the cap 2 by engaging the claws 8, 8 with the locking recesses 5, 5, the hook is provided protruding from the end surface of the cap 2. Two of the four base pins 3a, 31), 4a, 4b are fitted into the receiving terminals 9a, 9b and covered by the starting unit cover 7. Then, two base pins 3a fitted into these receiving terminals 9a and 9b,
4a is connected in series to a lighting tube 10 housed in the starting unit cover 7.

In this state, the remaining two pins 3b of the four base pins 3a, 3b, 4a, and 4b protruding from the end surface of the base 2
.

4b is not covered by the starting unit cover 7 and remains exposed, protruding from the end surface of the base 2.

Therefore, by attaching the starting unit cover 7, the 4-pin type single-capped fluorescent lamp shown in FIG. 1 can be changed to the 2-pin type single-capped fluorescent lamp shown in FIG. can be changed to .

As a result, manufacturers have developed the 4-pin single-capped fluorescent lamp shown in Figure 1 and the starting unit cover 7.
Since it is only necessary to manufacture one type of single-capped fluorescent lamp, manufacturing, inventory management, etc. are easy, and the product can be provided at a low price.
.

Also, on the user side, the number of devices used is 2;4.

In case of pin type, add force 6 to the starting unit cover.
)j':Ig:ゝ.

Just put it in.

j゛Moreover, if you are using it as a 2-pin type
・、.

In the unlikely event that lighting tube 10 suffers from hemorrhoids or malfunctions.
:l'Even if the lamp does not start, replace only the cover 7.i'On the other hand, if the lighting tube 10 is usable but the lamp becomes unusable, replace only the lamp. This makes it possible to achieve the following configurations and to reduce the cost.

In addition, in the above embodiment, the cap is protruded from the base 2.
□When the four base pins 3a, 3b, da, and 4b are lined up in a straight line and the starter unit cover 7 is connected to the base 2, the two base pins 3b and 4b are not covered by the starter unit cover 7. Alternatively, the present invention may be constructed so as to project directly from the base 2 and become a two-pin type, or the present invention may be constructed as in another embodiment shown in FIG.

In other words, the one in Fig. 7 is a 4-pin single-cap type lamp in which four cap pins 3a, 3b', 4a, and db protruding from the cap 2 are arranged at each vertex of a rectangle. In addition to the structure of the embodiment shown in FIGS.
Starting] Connecting pin 21a to X foot bar 20,
21b is provided protrudingly. These connection pins 21a, 21
b is the remaining cap pin 3b that is not connected to the lighting tube 10;
4b, and also to a socket on the instrument side (not shown).

Even in this way, the cover 20 can be removably attached to a single 4-pin single-cap type (push light lamp) and can be used as a 2-pin type single-cap fluorescent lamp. It becomes possible to do so.

Further, in the above embodiment, a U-shaped fluorescent lamp has been described, but the present invention is not limited to the shape of the bulb.
In short, any single-capped fluorescent lamp can be applied.

Further, the circuit components housed in the starting unit cover are not limited to the lighting tube, but may also be thermally responsive switches, semiconductor components for electronic lighting, etc., depending on the configuration of the applied starting circuit.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to change the 4-pin type single-ended fluorescent lamp to a 2-pin single-ended fluorescent lamp by simply attaching the starting unit cover in a removable manner. Either the 4-pin type or the 2-pin type can be selected and used, reducing the manufacturing cost and increasing the degree of freedom of use. Moreover, if a situation arises that requires replacing the starting circuit or lamp when using the 2-pin type, the starting unit cover is removable, so you only need to replace either the starting unit cover or the lamp. It's good, so it's cheap.

[Brief explanation of drawings]

1 to 6 show one embodiment of the present invention, FIG. 1 is a perspective view showing a 4-pin type state, FIG. 2 is a perspective view showing a 2-pin type state, and FIG. 3 is a perspective view showing a 2-pin type state. Figure 4 is a perspective view of the starter unit cover, Figures 5 and 6 are v-v in Figure 4, respectively.
7 is an exploded perspective view of another embodiment of the present invention. 1... Valve, 2... Cap, 3a, 36.4a,
4b... Clasp pin, 5... Locking recess, 7, 20
...Starting unit cover, 8...Hatch is claw, 9a,
9b...Receiving terminal, 10...Lighting tube, 21a, 2
1b... Connection pin. Applicant's agent Patent attorney Takehiko Suzue Figure 5 1 b6

Claims (3)

[Claims] (1) A 4-pin single-cap type with a cap attached to the end of the bulb, and a total of four cap pins connected to each electrode provided at both ends of the bulb protruding from the cap. In the light lamp, a starting unit cover is removably attached to the base, and the starting unit cover has a receiving terminal into which one of the base pins connected to each electrode is fitted. and housing starting circuit components connected to these receiving terminals, and when the starting unit cover is attached to the base, two base pins protrude, resulting in a two-pin type. A single-capped fluorescent lamp. (2) When attached to the base, the starting unit cover does not cover but exposes the remaining base pins connected to each electrode among the base pins protruding from the base. A single-capped fluorescent lamp according to claim 1. (3) When the starting unit cover is attached to the base, the starting unit cover is connected to one of the remaining base pins connected to each electrode among the base pins protruding from the base. 2. The single-capped fluorescent lamp according to claim 1, further comprising a connecting pin protruding from the starting unit cover.