JPH09281910A - Assembled indication light - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the kind revision by storing a light emitting unit having an LED display part integrated with a voltage conversion circuit in a housing and making the light emitting unit attachable/detachable from the front side of the housing. SOLUTION: This indication light is constituted so that plural pierces of the housings 10 storing the light emitting unit 30 are connected in the horizontal direction by a frame body. Respective housings 10 form a square prism shape opening the front and closing the rear. Then, the light emitting unit 30 stored in the housing 10 is made an attachable/detachable system inserted from the front side of the housing 10 and pulled out to the front side. The light emitting unit 30 is provided with the LED indication part integrated with the voltage conversion circuit. In such a case, by inserting horizontal parts 41 into slits formed on the rear of the housing 10, terminal clips 40 are fixed to the housing 10 in the state that vertical parts 42 are abutted on the rear of the housing 10. Power source line wires are connected to the vertical parts 42 by sewers 44.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of collective indicator lamps arranged on a control panel or the like for displaying operation statuses of various devices, and more specifically, a plurality of LED indicator portions are housed in a housing. The present invention relates to a collective indicator light unit arranged.

[0002]

2. Description of the Related Art For example, in a nuclear power plant, dozens of collective indicator lights equipped with LED display parts are collectively arranged on a control panel or a switchboard in order to display the operating status of various devices such as pumps. The installed display device is provided. FIG. 6 shows a conventional example of this kind of collective indicator lamp.

As shown in FIG. 6, this collective indicator lamp is constructed by laterally connecting a plurality of housings (4 in the illustrated example) 2 each containing one or a plurality of LED display sections 1. This connection is performed by the frame body 5. A power supply terminal 3 electrically connected to each LED display unit 1 is connected to the rear surface of the housing 2, and each power supply terminal 3 is connected to one end side of each power supply line 4. The other ends of the power supply lines 4, 4, ... Are connected to a power supply (not shown). The housing 2 and the LED display unit 1 are usually integrated.

Here, in the collective indicator lamp, in general,
The LED display units 1 having different drive voltages for display driving are combined. Therefore, the power supply lines 4 having different supply voltages are also connected to the power supply terminals 3 corresponding to the LED display sections 1. In extreme cases, 24V, 100V, 200V
The three types of voltages may be supplied to the LED display unit 1 in one collective indicator lamp via the power supply line 4.

[0005]

By the way, in the collective indicator lamp unit as described above, the L indicator is often used during use.
The type of the ED display unit 1 is changed. Then, when the type of the LED display unit 1 is changed, the changed LE is correspondingly changed.
It is necessary to supply a voltage corresponding to the drive voltage of the D display unit 1 via the power supply line 4.

In this case, the collective indicator lights integrated by the frame 5 are disassembled into individual housings 2,
Need to be rearranged. However, since the housings 2 are connected by the frame 5, the disassembling work is troublesome.

In the collective indicator lamp, the number of power supply lines 4 corresponding to the number of the LED display portions 1 is required. Therefore, there is a problem that even a skilled person takes a long time to select a specific power supply line 4 from a large number of power supply lines 4 and accurately connect it to the target power supply terminal 3.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a collective indicator lamp unit which does not require a reassembling operation of a housing or a power line due to a change in type of an LED display section. .

[0009]

SUMMARY OF THE INVENTION A collective indicator lamp unit of the present invention is a collective indicator lamp constructed by combining a plurality of LED display parts, and a light emitting device in which a voltage conversion circuit is integrated with the LED display parts. The unit is housed in a housing, and the light emitting unit is detachable from the front side of the housing, whereby the above object is achieved.

[0010] Preferably, the LED display section is an LED in which one red light emitting element and two green light emitting elements form one set.
A filter configured of an element group and for changing the display color is arranged on the front side of the LED display section.

Further, preferably, one terminal is provided at a rear portion of the housing, and the other terminal which comes into contact with the one terminal when the light emitting unit is inserted into the housing is provided at a rear portion of the light emitting unit. To be installed.

Preferably, the light emitting unit is
A first support frame for supporting the LED display section, and the LED
A second support frame for supporting the lenses arranged on the front side of the display unit, the second support frame being held by the housing, and being movable toward and away from the first support frame. connect.

Also, preferably, the means for connecting the second support frame to the first support frame extends from the second support frame to the rear surface side, and each tip portion has the first support frame. Is a pair of flexible claws that engage with the front part of the.

The operation will be described below.

In the present invention, the light emitting unit in which the LED display section and the voltage conversion circuit are integrated can be removed from the front side of the housing. Therefore, the replacement work of the light emitting unit, that is, the LED display unit can be quickly performed. Also,
Since the LED display unit is integrated with the voltage conversion circuit,
Even when the voltage value supplied to the light emitting unit via the power supply terminal is different, a desired voltage can be supplied to the LED display unit. For this reason, when replacing the type of the LED display unit, it is not necessary to rearrange the housing or rearrange the power lines.

Further, according to the structure in which the LED element group including one set of one red light emitting element and two green light emitting elements is arranged in the LED display portion, the display color is milky white. Therefore, the emission color can be easily changed by replacing the color filter arranged on the front surface side of the LED display unit.

According to the construction, one terminal is provided at the rear part of the housing, and the other terminal which comes into contact with the one terminal when the light emitting unit is inserted into the housing is provided at the rear part of the light emitting unit. The terminals come into contact with each other along with the operation of inserting the light emitting unit therein.

Further, the light emitting unit is provided with a first support frame for supporting the LED display section and a second support frame for supporting the lenses arranged on the front side of the LED display section, and the second support frame is provided. According to the configuration in which the frame is held by the housing and is movable toward and away from the first support frame, when the light emitting unit is pulled out from the housing, the second support frame is first disengaged from the housing, and then the light emitting unit side. Since the terminal of is detached from the terminal clip on the housing side, the force required to pull out the light emitting unit is reduced.

As a means for connecting the second support frame to the first support frame, a pair of members extending from the second support frame to the rear surface side and having their front end portions engaged with the front portion of the first support frame are provided. According to the configuration in which the flexible claw is provided, the second support frame is easily connected to the first support frame due to the deformation of the flexible claw, and even if an excessive force is applied at the time of separation, the second support frame is damaged. Does not occur.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 4, the collective indicator lamp has a structure in which a plurality of housings 10 accommodating the light emitting units 30 are laterally connected by a frame body 20. Each housing 10 is in the shape of a rectangular tube whose front surface is open and whose rear surface is closed.

As shown in FIG. 2, the frame body 20 includes a pair of upper and lower lateral members 21 and 21 screwed to the upper and lower surfaces of a plurality of laterally arranged housings 10, 10, 10 and the housings 10 at both ends. , 10 and a pair of left and right vertical members 22 and 22 which are screwed to the outer side surfaces, respectively, and also serve as mounting members when mounting the collective indicator lamp to a control panel, a switchboard, or the like.

As shown in FIG. 3, the light emitting unit 30 housed in the housing 10 is of a detachable type which is inserted from the front side of the housing 10 and pulled out to the front side. The light emitting unit 30 has an LED display unit integrated with a voltage conversion circuit, the details of which will be described later.

Two terminal clips 40, 40 are attached to the rear surface of the housing 10. Terminal clip 4
0 is a pair of upper and lower horizontal portions 41, 41 and horizontal portions 41, 4
It has a vertical portion 42 for connecting 1 and a pair of upper and lower contact portions 43, 43 protruding from the side edge portion of the vertical portion 42 to the front side. Then, by inserting the horizontal portions 41, 41 into the slit formed on the rear surface of the housing 10, the vertical portion 42
The terminal clip 40 is fixed to the housing 10 in a state where the terminal clip 40 contacts the rear surface of the housing 10. A power line wire is connected to the vertical portion 42 by a screw 44. Also,
The pair of upper and lower contact portions 43, 43 protrude into the housing 10 through a slit formed on the rear surface of the housing 10.

The light emitting unit 30 housed in the housing 10 is, as shown in FIGS. 3 and 4, an LED display portion A formed by combining two vertical printed circuit boards 31 and 32 in a T shape. A first support frame 33 that supports the LED display portion A, lenses B that are arranged on the front side of the LED display portion A, and a second support frame 33 that supports the lenses B and is connected to the first support frame 33. And a support frame 34.

The first vertical substrate 31 in the LED display section A constitutes the display section main body and is arranged sideways with the front side facing, and a plurality of LED elements 35 are mounted on the front side. ing. The plurality of LED elements 35 is 2
Four red light emitting elements R and one green light emitting element G are provided as one set. The first substrate 31 has an LED
A drive circuit for driving the element 35 is mounted.

A second unit vertically arranged on the rear surface side of the substrate 31.
A voltage conversion circuit is mounted on the vertical substrate 32. The voltage conversion circuit converts the common power supply voltage into the drive voltage of the LED element 35 in the LED display section A. For example, if the common power supply voltage is 100V and the drive voltage of the LED element 35 in the LED display section A is 24V, 100V is converted to 24V, and if the power supply voltage is 200V, 200V is converted to 24V. It is in good condition. Two terminals 36, 36 are attached to the rear end portion of the second substrate 32 so as to project to the rear surface side for connection with the power supply line.

First support frame 3 for supporting the LED display portion A
As shown in FIG. 4, 3 has a rectangular frame portion 33a. The frame portion 33a is provided with a pair of upper and lower horizontal portions 33b and 33b extending from the upper side portion and the lower side portion toward the rear surface side, and the rear end portions of the horizontal portions 33b and 33b are connected by the vertical portion 33c. ing.

Here, the first substrate 31 in the LED display portion A has the protrusions 31 provided at the upper edge portion and the lower edge portion thereof.
The a and 31a are fixed in the frame part 33a by fitting into the slits 33d and 33d provided in the upper side part and the lower side part of the frame part 33a. The second substrate 32 has a horizontal portion 33.
By fitting the upper edge portion and the lower edge portion into the grooves 33e, 33e provided in the facing surfaces of the b, 33b, the horizontal portions 33b, 3b
It is fixed between 3b.

Terminals 3 mounted on the second substrate 32
Reference numerals 6 and 36 denote horizontal portions 33b and 33b of the first support frame 33.
With the substrate 32 fixed in between, it projects through the slit provided in the vertical portion 33 to the rear surface side of the support frame 33. The protrusion is located at a fixed position in the housing 10 and is located at the first support frame 3
In the state in which 3 is inserted, it is pressed against the contact portions 43, 43 of the terminal clips 40, 40.

The lenses B arranged on the front side of the LED display portion A are the first lenses 3 arranged in order from the front side to the rear side.
7, a filter 38, and a second lens 39. First
The lens 37 is a lens that suppresses irregular reflection, and the filter 3
8 and the second lens 39 also serve as a fixing member for fixing the second lens 39 to the second support frame 34. The filter 38 is colored in a desired emission color. The second lens 39 is a diffusion lens.

Second support frame 34 for supporting the lenses B
Has a rectangular tube portion 34a that guides the light from the LED display portion A to the lenses B without leaking to the outside. Protrusions 34b and 34b are provided on the upper surface and the lower surface of the rectangular tube portion 34a. The protrusions 34b and 34b are fitted into the openings 37a and 37a provided on the upper side and the lower side of the first lens 37. As a result, the first lens 37 is supported on the front surface side of the square tube portion 34a, and the filter 38 and the second lens 39 inserted in the square tube portion 34a are fixed.

On the second support frame 34, short snap-fit type claws 34c, 34c projecting from the upper surface and the lower surface of the square tube portion 34a to the rear surface side, and from the side surface portions on both sides of the square tube portion 34a to the rear surface. Long flexible claws 34d, 34d protruding to the side
Are provided.

Short snap-fit type claws 34c, 34
c is a state in which the second support frame 34 is inserted into a fixed position in the housing 10 and is fitted into the openings 11 formed in the upper surface portion and the lower surface portion of the housing 10 to provide the second support. The frame 34 is fixed in place within the housing 10. The long flexible claws 34d, 34d on both sides are easily bent to both sides with the front end as a fulcrum, and the rear end is bent inward. Then, the rear end portions of the flexible claws 34d and 34d engage with the vertical side portions so as to hold the vertical side portions of the frame portion 33a of the first support frame 33 from both sides. The support frame 34 is connected to the first support frame 33. Further, in the connected state, the second support frame 34 can approach and separate from the first support frame 33, as shown in FIG.

In the collective indicator lamp having the above structure, the light emitting unit 30 is assembled and the light emitting unit 30 is attached to and detached from the housing 10 as follows.

LED display portion A in the light emitting unit 30
Are fixed in the first support frame 33. The lenses B are mounted on the second support frame 34. When the first support frame 33 and the second support frame 34 are not connected, the flexible claws 34d and 34d of the second support frame 34 are opened to the outside, and the rear end portions bent inward are set to the first position. The second support frame 34 is connected to the first support frame 33 by engaging with the respective vertical side portions of the frame portion 33 a of the support frame 33. Then, in a state where the first support frame 33 and the second support frame 34 are connected, the second support frame 34 is pushed to insert the light emitting unit 30 into the housing 10 from the front side.

When the second support frame 34 is pushed, as shown in FIG. 5A, the first support frame 33 is pushed by the second support frame 34 and advances in the housing 10. Second support frame 34
When the fixed position inside the housing 10 is reached, the snap-fit type short claws 34c and 34c are fitted into the openings 11 and 11 of the housing 10, so that the second support frame 34
Are fixed in place within the housing 10. In this state, the first support frame 33 is inserted into a fixed position in the housing 10 and is prevented from coming off by the second support frame 34, and the terminals 36, 36 contact the contact portions 43, 43 of the terminal clips 40, 40. Press against.

When pulling out the light emitting unit 30 from the inside of the housing 10, the first supporting frame 3 for supporting the lenses B is used.
3 toward the front side of the housing 10 and the claws 34c, 34c
Is removed from the openings 11, 11 of the housing 10. At this time, since the first support frame 33 can move toward and away from the second support frame 34, only the first support frame 33 moves to the front side. Then, the claws 34c, 34c have the openings 11, 1
When the first support frame 33 is pulled even after being disengaged from FIG.
As shown in (B), the second support frame 34 is provided with flexible claws 3.
4d, 34d pulls out of the housing 10.

Terminals 36, 36 are terminal clips 40, 40
Firmly presses against the contact portions 43 of the first support frame 33.
When it is difficult to pull out, if the force for pulling out the second support frame 34 is added to the force for pulling out the first support frame 33, it becomes difficult to pull out the light emitting unit 30. However, here, the second support frame 34 and the first support frame 33 are gradually withdrawn, and the force required for the withdrawal is dispersed. Therefore, the terminals 36, 36 contact the contact portions 43 of the terminal clips 40, 40,
Even in the case where the light emitting unit 30 is firmly pressed against the 43, the light emitting unit 30 can be pulled out relatively easily.

In the light emitting unit 30, when the second support frame 34 is separated from the first support frame 33, the flexible claw 3 is used.
Although 4d and 34d are opened to both sides, even if they are forcibly separated, the flexible claws 34d and 34d naturally open to both sides, so that the support frames 33 and 34 are prevented from being damaged.

Regarding the display operation in the display unit, a plurality of housings 10, 1 in the display unit are used.
The same voltage, for example 20
Connect the 0V power line. Housing 10, 1
Since each of the light emitting units 30 inserted in each of 0 and 10 has a voltage conversion circuit for converting the power supply voltage into the driving dynamic voltage of the LED display portion A, when the drive voltage of the LED display portion A is different from the power supply voltage. However, the LED display portion A can be made to emit light without any trouble. For this reason, when changing the type of the LED display portion A, the light emitting unit 30 may be replaced. Therefore, it is not necessary to replace the housing 10 and rewiring the power supply line.

Regarding the display color, the plurality of LED elements 35 in the LED display portion A are one red light emitting element R and two LED elements 35.
One green light emitting element G and one green light emitting element G are provided as one set. 1
When one red light emitting element R and two green light emitting elements G emit light at the same time, the display color becomes milky white. This light is colored in a desired color by the filter 38. Therefore, the display color can be easily changed by replacing the filter 38.

[0043]

According to the collective indicator lamp of the present invention, the light emitting unit having the LED display portion integrated with the voltage conversion circuit is housed in the housing, and the light emitting unit is detachable from the front side of the housing. Even when the type of the LED display section is changed, it is not necessary to rearrange the housing and change the wiring. Therefore, the type can be easily changed.

Further, an LED element group having one red light emitting element and two green light emitting elements as a set is provided in the LED display section, and a filter for changing the display color is arranged on the front side of the LED display section. In this case, the desired emission color can be obtained by replacing the filter.

When one terminal is provided on the rear part of the housing and the other terminal which comes into contact with the one terminal when the light emitting unit is inserted into the housing is provided on the rear part of the light emitting unit, the light emitting unit is provided. Since the terminals are connected and separated with the insertion and withdrawal of
The work of changing the ED display becomes easy.

Further, the light emitting unit is provided with a first support frame for supporting the LED display section and a second support frame for supporting the lenses arranged on the front surface side of the LED display section. When the frame is held by the housing and is connected to the first support frame so as to be movable toward and away from the first support frame, the light emitting unit is pulled out in two steps, and the force required for pulling out the light emitting unit is dispersed. Become. Moreover, since a large force is not applied, it is not damaged.

As a means for connecting the second support frame to the first support frame, a pair of members extending from the second support frame to the rear surface side and each tip of which engages with the front part of the first support frame. When the flexible claw of is used, connecting work and separating work of both are easy,
It is possible to reliably prevent damage during separation work.

[Brief description of drawings]

FIG. 1 is a perspective view showing a collective indicator lamp of the present invention.

FIG. 2 is an exploded perspective view of the collective indicator lamp shown in FIG.

FIG. 3 is a perspective view showing a housing and a light emitting unit.

FIG. 4 is an exploded perspective view of a light emitting unit.

FIG. 5 is a side view showing a positional relationship of support frames in the light emitting unit.

FIG. 6 is a plan view schematically showing a conventional collective indicator lamp.

[Explanation of symbols]

 10 Housing 20 Frame 30 Light Emitting Unit 31, 32 Substrate 33 First Support Frame 34 Second Support Frame 35 LED Element 36 Terminal (Other Terminal) 37, 39 Lens 38 Filter 40 Terminal Clip (One Terminal) A LED Display B Lenses

Claims (5)

[Claims] 1. A collective indicator lamp configured by combining a plurality of LED display sections, wherein a light emitting unit in which a voltage conversion circuit is integrated with the LED display section is housed in a housing, and the light emitting unit is Collective indicator light that can be attached and detached from the front side of the housing. 2. The LED display section is composed of an LED element group including one red light emitting element and two green light emitting elements as a set, and a filter for changing the display color is provided on the front side of the LED display section. The collective indicator light according to claim 1, wherein 3. One terminal is provided on the rear portion of the housing, and the other terminal that comes into contact with the one terminal when the light emitting unit is inserted into the housing is provided on the rear portion of the light emitting unit. The collective indicator light according to claim 1 or 2. 4. The light emitting unit includes a first support frame that supports the LED display section, and a second support frame that supports lenses arranged on the front surface side of the LED display section,
4. The collective indicator lamp according to claim 3, wherein the second support frame is held by the housing and is connected to the first support frame so as to be movable toward and away from the first support frame. 5. A means for connecting the second support frame to the first support frame extends from the second support frame to a rear surface side,
The collective indicator lamp according to claim 4, wherein each tip portion is a pair of flexible claws that engage with a front portion of the first support frame.