JP3474243B2 - Discharge lamp lighting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge lamp lighting device including an inductor having an iron core and a capacitor.

[0002]

2. Description of the Related Art As a discharge lamp lighting device for lighting a discharge lamp, an inductor having an iron core such as a leakage transformer, a starting compensation capacitor, a phase advancing capacitor, a noise preventing capacitor, and Some have a discharge resistor or the like.

As such a discharge lamp lighting device known in the prior art, there is, for example, a series lead peak type for two fluorescent lamps as shown in FIG. 6, whose lighting circuit is an inductor L consisting of a leakage transformer. And a capacitor C for starting compensation
2, a capacitor C3 for advancing a phase, a capacitor C1 for preventing noise, and a discharge resistor R, and lights two lamps La. In the discharge lamp lighting device having such a circuit configuration, the inductor L which is a leakage transformer and the components such as the capacitors C1, C2, C3 and the discharge resistor R which are other circuit elements are separately formed as a unit, and these are combined. It is common to connect and assemble.

FIG. 7 shows a conventional discharge lamp lighting device (first conventional example). The discharge lamp lighting device includes a first unit 1 accommodating an inductor L which is a leakage transformer.
And a second unit 2 in which components other than the inductor L, which is another circuit element such as the capacitors C1, C2, C3 and the discharging resistor R, are housed.

The first unit 1 comprises an inductor L, which is a leakage transformer formed by winding a coil around an iron core, and is housed in a first case 3 made of a metal having a substantially rectangular tube shape. Is fixed to the first case 3 by a compound which is a casting agent filled in the first case 3.

The second unit 2 comprises a composite capacitor 4 which is a so-called oil-containing capacitor and a mounting plate 5. The composite capacitor 4 is lit by a discharge lamp lighting in a second case 6 made of metal such as aluminum. Other circuit elements except the inductor L of the device, that is, a starting compensation capacitor C1, a phase advancing capacitor C2, a noise preventing capacitor C3, and a discharging resistor R are collectively housed, and are internally housed. The second unit 2 is provided as an oil-filled multi-terminal composite component, and the composite capacitor 4 is attached to a mounting plate 5.

The first unit 1 and the second unit 2 thus constructed electrically connect the inductor L and other circuit elements housed in the respective units with the connecting lead wire 7, and One end of the mounting plate 5 is superposed on one end of the first case 3 and the overlapping portion is joined by a tapping screw, or a fixing claw (on one of the first case 3 and the mounting plate 5 ( (Not shown), and the pawls are mechanically coupled by engaging with the other and caulking. The lead wire 8 shown in the figure is for connecting the discharge lamp lighting device to the lamp La and the power supply AC.

FIG. 8 and FIG. 9 show another conventional discharge lamp lighting device (second conventional example). The difference from the first conventional example is the second unit 2, and the others. The configuration is similar to that of the first conventional example.

The second unit 2 is configured as a composite capacitor 4 using a so-called plastic film type capacitor, and is a circuit component other than the inductor L of the discharge lamp lighting device, which is a capacitor C for starting compensation.
1. The capacitor C2 for advancing the phase, the capacitor C3 for noise prevention, and the discharging resistor R are mounted on the component mounting board 9, and the connecting lead wire 7 is connected to the component mounting board 9 to form the insulating material. It is housed in the second case 6, filled with the casting agent 10 and fixed therein.

The second unit 2 constructed in this way
Is the lead wire 7 for connecting the inductor L housed in the first unit 1 and the other circuit elements inside the composite capacitor 4.
Was electrically connected, and one end of the mounting plate 5 was superposed on one end of the first case 3, and the overlapped portion was joined by the screw 11 to be assembled.

[0011]

However, the conventional discharge lamp lighting device having such a structure (first conventional example)
In the above, since a large number of metal-worked parts are required due to its configuration, the assembly workability is poor, and it is difficult to add a mounting structure to the second case 6 which is the outer shell of the composite capacitor 4, so that There is a problem that the mounting plate 5 that serves both to fix the capacitor 4 and to mount it on the first case 3 is required, resulting in an increase in cost. In addition, since the electrical connection between the inductor L and other circuit elements is exposed to the outside, there is a risk of electric shock or leakage depending on the installation conditions, and it is necessary to provide a separate component for protecting the electrical connection. In addition to the increase in cost, the first unit 1 and the second unit 2 are connected to each other by the metal mounting plate 5, so that a capacitor which is another circuit element housed in the second unit 2 is generated. However, there is also a problem that the first unit 1 is easily affected by the heat.

Further, in another conventional discharge lamp lighting device (second conventional example), there are other circuit elements such as a starting compensation capacitor C2, a phase advancing capacitor C3, a noise preventing capacitor C1 and It is necessary to connect the discharge resistor R to a predetermined position on the component mounting board 9, solder the connection lead wire 7 and store it in the second case 6, fill with the casting agent 10 and cure and fix it. However, there is a problem that the workability is poor and the cost is high.

The present invention has been made to solve the above problems, and an object of the present invention is to reduce the thermal influence from the first unit to the second unit and to perform the assembling work. The present invention aims to provide a discharge lamp lighting device that improves the efficiency and reduces the cost, and that has less risk of electric shock.

[0014]

Since the present invention SUMMARY OF] is to solve the above problems, in the invention described in claim 1, with housing the inductor and the inductor comprising a core
A first unit having a first case filled with a casting agent, another circuit element that constitutes a lighting circuit together with the inductor, and a second case made of an insulating material for accommodating the other circuit element. A discharge lamp lighting device comprising a first unit and a second unit fixed to each other, and a second unit including a connection terminal portion to which one end on one end face Rutotomoni other end connected to the inductor projects from casting agents provided, the one end to said one end surface opposed to the first unit of the second unit is the other circuit A power receiving terminal portion connected to the element and the other end of which is connected to the connection terminal portion is provided.

Further, the invention according to claim 2 is characterized in that the other end of the power receiving terminal portion 13 is fitted into the connecting terminal portion 12.

In the invention according to claim 3, the end of the second case 6 facing the first unit 1 is internally or externally attached to the end of the first case 3. It is characterized by that.

Further, in the invention according to claim 4, the end portion of the second case 6 facing the first unit 1 is exteriorly mounted on the end portion of the first case 3. It is characterized by.

Further, in the invention according to claim 5, the second unit 2 is provided with an electric circuit board 14 having one end connected to the power receiving terminal portion 13, and the electric circuit board 14 is provided with a plurality of quick-connecting elements. The mechanism portion 14a is provided, and the other circuit elements are mounted on the quick-link mechanism portion 14a.

[0019]

With the above construction, the first aspect of the present invention includes the inductor L having the iron core 15 and the first case 3 for housing the inductor L. Unit 1 and a second unit 2 including another circuit element that constitutes a lighting circuit together with the inductor L and a second case 6 made of an insulating material that houses the other circuit element. In the discharge lamp lighting device in which the first unit 1 and the second unit 2 are fixed to each other, one end is connected to the inductor L on one end face of the first unit 1 facing the second unit 2. Connection terminal part 1
2, a power receiving terminal portion 1 having one end connected to the other circuit element and the other end connected to the connection terminal portion 12 on one end surface of the second unit 2 facing the first unit 1.
In addition to the above, the second case 6 accommodating the capacitor, which is another circuit element, is provided because the casting agent 17 is filled only in the first unit 1 of the first unit 1 and the second unit 2 Has a low thermal conductivity and there is no casting agent 17 inside thereof, so that the thermal effect on the capacitors housed in the first unit 1 and the second unit 2 can be reduced, and the second unit Since the unit 2 is not filled with the casting agent 17, the man-hours, time, etc. for filling and curing the casting agent 17 are reduced, the workability of assembly is improved, and the cost is reduced.

According to the second aspect of the invention, since the other end of the power receiving terminal portion 13 is fitted into the connecting terminal portion 12, the inductor L and the second portion housed in the first unit 1 are connected. Other circuit elements stored in the unit 2 of
If the power receiving terminal portion 13 and the connection terminal portion 12 are fitted together, they can be electrically connected, and in addition to the effect of claim 1, the workability of assembly is further improved and the cost thereof is reduced.

Further, in the invention of claim 3 or claim 4, the end of the second case 6 facing the first unit 1 is set to the end of the first case 3. Since it is internally or externally fitted, the connection terminal portion 12 and the power receiving terminal portion 13 are fitted together to make an electrical connection, and at the same time, the second case 6
If the end of the first case 3 is exterior or interior,
The first unit 1 and the second unit 2 are mechanically coupled, and in addition to the effect according to claim 1 or claim 2, the workability of assembling the discharge lamp lighting device is further improved, and the cost thereof is reduced. Moreover, the electric connection part is covered with the first case 3 and the second case 6 so that the charging part is not exposed, and the electric connection part between the first unit 1 and the second unit 2 is formed. There is no risk of electric shock.

Further, in the invention according to claim 5, one end of the second unit 2 is the power receiving terminal portion 1
3 is provided, and a plurality of quick-coupling mechanism portions 14a are provided at the electric-circuit board 14 and the fast-coupling mechanism portion 14 is provided.
Since the other circuit element is mounted on a, the quick connection mechanism unit 14
By inserting the other circuit element into a, the other circuit element is electrically and mechanically connected, and the other circuit element can be easily mounted. In addition to the effects according to claims 1 to 4, The workability of assembling the second unit 2 is improved, and the cost of the discharge lamp lighting device is further reduced.

[0023]

1 to 5 show an embodiment of a discharge lamp lighting device according to the present invention. The discharge lamp lighting device is a first unit 1 containing an inductor L made of a leakage transformer. And other circuit elements, capacitors C1, C2, C
3 and a second unit 2 in which components other than the inductor L that constitute the discharge lamp lighting device, such as the discharging resistor R, are housed.

The first unit 1 includes a core 1 and a coil 1
Inductor L consisting of a leakage transformer constructed by winding 6
Is housed in a substantially rectangular metal first case 3 and the inductor L is placed in the first case 3 by a compound 17 which is a casting agent filled in the first case 3. It is fixed and on one end side of the first unit 1,
One end is connected to inductor L and the other end is compound 1
A connection terminal portion 12 protruding from 7 is provided. In addition, an insulating cover 18 is provided on the other end side of the first unit 1.
Is attached and is the bottom when the compound 17 is filled.

The second unit 2 has a second case 6 having substantially the same cross section as the first case 3 of the first unit 1,
The circuit board 14 includes a power receiving terminal portion 13, and other circuit elements except the inductor L of the discharge lamp lighting device.

The second case 6 is made of an insulating material and is composed of a box body having an opening on one side and a lid body attached to the opening, and supplies power to other circuit elements housed inside. Except for the insertion hole of the power receiving terminal portion 13, there is almost no opening, and at least the outer peripheral surface near one end of the contact portion 6a that contacts the end of the first case 3 and the contact portion 6a.
The contact portion 6 is provided on one end side of the first unit 1 side of a.
For the start compensation, which has a projecting portion 6b projecting to the first unit side more than a and fitted into the first case 3, and which is another circuit element inside the discharge lamp lighting device except the inductor L. Of the capacitor C1, the phase advancing capacitor C2, the noise preventing capacitor C3, and the discharging resistor R
It is mounted and stored in, and the inside is not filled with a casting agent.

The electric circuit board 14 has a quick-coupling mechanism portion 14a which is cut and raised to form a locking spring at a position where each of the other circuit elements is mounted.
In addition, another circuit element, which is a capacitor C1 for starting compensation,
Capacitor C2 for phase advance, capacitor C1 for noise prevention
Also, each component is mounted by inserting the lead 19 of the component such as the discharge resistor R, and each component and the electric circuit board 14 are electrically and mechanically coupled. Also, at one end of the electric circuit board 14,
A power receiving terminal portion 13 electrically connected to each component mounted on the electric circuit board 14 is provided so as to project from or at least be exposed from the second case 6, and a tip portion 13a of the power receiving terminal portion 13 has a cross section. Is formed into a C-shape or an O-shape, and with the contact portion 6a of the second case 6 in contact with the end portion of the first case 3, it is fitted with the tip portion 12a of the connection terminal portion 12. It is dimensioned so that electrical connection can be made. That is, the tip portion 1a of the connection terminal portion 12 is connected to the tip portion 13a of the power receiving terminal portion 13.
The 2a are fitted so as to be wrapped, and they are kept in contact with each other, and are electrically connected.

In the first and second units 1 and 2 thus constructed, the connection terminal portion 12 and the power receiving terminal portion 13 are arranged to face each other, and the contact portion 6a of the second unit 2 is arranged. If it is slid so as to abut the end of the first case 3 of the first unit 1, the protrusion 6b of the second unit 2
Is fitted and locked in the first case 3 of the first unit 1, and at the same time, the connection terminal portion 12 is fitted in the power receiving terminal portion 13 for electrical connection.

With this configuration, in the discharge lamp lighting device according to the present embodiment, it is only necessary to insert the other components, which are other circuit elements, into the quick connection mechanism portion 14a of the electric circuit board 14 of the second unit 2. They can be connected electrically and mechanically with one touch, and the soldering work is not required, and since the second unit 2 is not filled with a casting agent,
The work and time for the injection and the drying can be reduced,
Further, the connection terminal portion 12 and the power receiving terminal portion 13 are opposed to each other, and the contact portion 6a of the second unit 2 is connected to the first unit 1.
If it is slid so as to be brought into contact with the end of the first case 3, the protruding portion 6b of the second unit 2 is fitted and locked in the first case 3 of the first unit 1. At the same time, the connection terminal portion 12 is fitted into the power receiving terminal portion 13 to be electrically connected, the number of parts can be reduced, and the screwing work is unnecessary, and the workability of assembling the discharge lamp lighting device is improved. Cost down.

Further, since the contact portion 6a of the second case 6 is in contact with the end portion of the first case 3 and the protrusion 6b of the second case 6 is fitted in the first case 3, The electric connection portion of the first unit 1 and the second unit 2 is covered with them and is not exposed to the outside, and electric shock is generated by the electric connection portion of the first unit 1 and the second unit 2. The danger of.

Furthermore, since the other circuit elements except the inductor L are housed in the second case 6 made of an insulating material, they are less susceptible to the thermal influence of the inductor L of the first unit 1. In addition, even if the capacitor, which is one of the other circuit elements, fails and decomposed gas is generated, the capacitor is covered with the second case of the second unit 2 on its peripheral surface. Since there are few places where the decomposed gas leaks, the decomposed gas only needs to be accumulated inside, and the decomposed gas does not affect the outside.

In the above embodiment, the projection 6b at the end of the second case 6 is inserted into the end of the first case 3 and fitted therein, but the present invention is not limited to this. First, the end of the first case 3 is inserted and fitted into the end of the second case 6, or the end of the first case 3 is placed inside or outside the end of the second case 6, They may be fixed to each other with screws or engaging claws.

[0033]

Since it is constructed as described above,
According to the invention of claim 1, an inductor having an iron core, the inductor is housed, and a casting agent is filled.
A second unit including a first unit including a first case, another circuit element that constitutes a lighting circuit together with the inductor, and a second case made of an insulating material that houses the other circuit element. A discharge lamp lighting device comprising the first unit and the second unit fixed to each other, one end surface of which is opposite to the second unit of the first unit. co when connected to the inductor Ru
Is provided with a connection terminal portion having the other end protruding from the casting agent, one end of the second unit facing the first unit is connected to the other circuit element, and the other end is connected to the connection terminal portion. Since the power receiving terminal portion connected to the first case is provided, the second case containing the capacitor, which is another circuit element, has a low thermal conductivity, and since there is no casting agent inside the second case, the first unit to The thermal effect on the condenser housed in the second unit can be reduced, and since the second unit is not filled with the casting agent, the man-hours and time for filling and curing the casting agent are reduced. As a result, the workability of assembly is improved and the cost is reduced.

According to the second aspect of the invention, since the other end of the power receiving terminal portion is fitted to the connection terminal portion, the inductor accommodated in the first unit and the inductor accommodated in the second unit are accommodated. The other circuit element can be electrically connected by fitting the power receiving terminal portion and the connection terminal portion, and in addition to the effect according to claim 1, the workability of assembly is further improved and the cost thereof is reduced. Go down.

Further, in the invention of claim 3 or claim 4, the end portion of the second case facing the first unit is provided with an interior or an end portion of the first case. Since it is externally packaged, the connection terminal portion and the power receiving terminal portion are fitted together to make an electrical connection, and at the same time, the end portion of the second case is externally or internally attached to the end portion of the first case. The second unit is mechanically coupled, and in addition to the effect according to claim 1 or claim 2, the workability of assembling the discharge lamp lighting device is further improved, the cost thereof is reduced, and the electrical property thereof is reduced. The connecting portion is covered by the first case and the second case, so that the charging portion is not exposed, and the first unit and the second
There is no risk of electric shock due to the electrical connection with the unit.

Further, in the invention according to claim 5, an electric circuit board whose one end is connected to the power receiving terminal portion is provided in the second unit, and a plurality of quick-coupling mechanism portions are provided in the electric circuit board. At the same time, since the other circuit element is mounted on the quick-coupling mechanism section, simply inserting the other circuit element at the quick-coupling mechanism section,
The other circuit element is electrically and mechanically connected so that the other circuit element can be easily mounted. In addition to the effects according to claims 1 to 4, the workability of assembling the second unit is improved. Therefore, the cost of the discharge lamp lighting device is further reduced.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional front view showing a first embodiment of the present invention.

FIG. 2 is a perspective view of the same.

FIG. 3 is a front view of a main portion of the above-mentioned connection terminal portion.

FIG. 4 is a partial cross-sectional side view of the above quick-connecting mechanism portion.

FIG. 5 is a partial cross-sectional side view showing a state in which the components of the above quick-linking mechanism portion are mounted.

FIG. 6 is a circuit diagram of a conventionally known series lead peak type discharge lamp lighting device for two fluorescent lamps.

FIG. 7 is a perspective view showing a conventional discharge lamp lighting device (first conventional example).

FIG. 8 is a perspective view showing another conventional discharge lamp lighting device (second conventional example).

FIG. 9 is a partial cross-sectional side view showing a second unit of the above.

[Explanation of symbols]

1 first unit 2 Second unit 3 first case 6 Second case 12 Connection terminal part 13 Power receiving terminal 14 Circuit board 14a Quick connection mechanism 15 iron core 17 Casting agent L inductor

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Kodachi 404-1 Nishinobu Suise, Himeji City, Hyogo Prefecture Ikeda Electric Co., Ltd. (72) Masato Taji 404-1 Nishinobu Suise, Himeji City, Hyogo Prefecture (72) ) Inventor Yoshihiko Shimizu 404-1 Nishinosue, Himeji-shi, Hyogo Ikeda Denki Co., Ltd. (56) Reference JP 59-76412 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01F 36/00-38/42

Claims (5)

(57) [Claims] 1. A first unit including an inductor having an iron core and a first case for accommodating the inductor and filled with a casting agent, and another unit forming a lighting circuit together with the inductor. A second unit including a circuit element and a second case made of an insulating material for accommodating the other circuit element, wherein the first unit and the second unit are fixed to each other. in the discharge lamp lighting device, the connected Rutotomoni other end one end to one end surface opposed to the second unit to the inductor of the first unit or casting agent
A power receiving terminal portion having a connecting terminal portion projecting from the second unit, one end of which is connected to the other circuit element and the other end of which is connected to the connecting terminal portion on one end face of the second unit facing the first unit. A discharge lamp lighting device characterized by being provided. 2. The discharge lamp lighting device according to claim 1, wherein the other end of the power receiving terminal portion is fitted into the connection terminal portion. 3. The release according to claim 1 or 2, wherein an end of the second case facing the first unit is provided inside the end of the first case. Electric lighting device. 4. The release according to claim 1, wherein an end of the second case facing the first unit is provided on the end of the first case. Electric lighting device. 5. The second unit is provided with an electric circuit board having one end connected to the power receiving terminal portion, a plurality of quick-coupling mechanism portions are provided on the electric circuit board, and the other quick-coupling mechanism portion is provided at the second circuit unit. 5. A circuit element is mounted, and the circuit element is mounted.
The discharge lamp lighting device according to claim 1.