JP2002352679A - Automatic flasher unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate confirmation and maintenance after installation and enhance safety in wiring. SOLUTION: This automatic flasher unit is provided with: a terminal block 1; a switch function block 2 for making and breaking connection between terminals by using the circumferential external light; a base 3 and a cover 4 for housing the terminal block 1 and the function block 2; and a light receiving cover 5 for introducing the external light. A test cover 6 for covering the receiving cover 5 to block the external light is held by a container 36 composed of the base 3 and the cover 4. The base 3 is formed into a box-like shape having an opening 31 on the front face. The receiving cover 5 is fitted to the opening edge of the base 3. The cover 4 is held by the receiving cover 5. A screwdriver insertion hole 11 is formed at a position of the receiving cover 5 facing to a terminal screw 17 of the terminal block 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic blinker which opens and closes a connection between a power supply and a control load in accordance with the amount of ambient light, and more particularly, to facilitate checking and maintenance work after construction, and The present invention relates to a technique for improving safety in connection of electric wires.

[0002]

2. Description of the Related Art A conventional flasher has a plurality of terminal blocks each having a terminal connected to a power supply and a control load, and a terminal connected to a power supply and a control load connected to the power supply by using ambient light. Opening / closing function block for opening and closing the connection with the terminal, a base and a cover for accommodating the terminal block and the opening / closing function block, and a light receiving cover for taking in external light. It is configured to open and close the connection between the terminal connected to the power supply and the terminal connected to the control load (Japanese Patent Application Laid-Open No. 2001-5359).
7 publication).

[0003] By the way, the body constituted by the base and the cover is entirely or partially composed of a milky white cover part, and this cover part may be used also as a light receiving cover. Instead of the conventional 360-degree light detection, the cover and the light-receiving cover are separated so that light is received in a set detection range to ensure directivity, thereby improving malfunction resistance performance. I have.

[0004] Such a conventional automatic flasher is installed and used outdoors. For example, when an automatic flasher is installed, or a fluorescent lamp such as a street light or a street light using the automatic flasher is replaced. When performing maintenance such as
The worker holds a bag that does not transmit light, removes it, covers the light receiving cover, and blocks external light.
The operation of the automatic flasher or the lighting of the fluorescent lamp etc. has been confirmed.

[0005]

In the case of a street light or a street light, however, it is troublesome to take out the light-shielding bag and cover it with the light-receiving cover, and the maintenance workability is poor. This is not a preferable operation. Further, in the operation of connecting the electric wire inserted into the terminal, there is a possibility that the terminal block which is a high-voltage conductive portion may be unexpectedly touched.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and makes it possible to easily check the operation of an automatic blinker or lighting of a fluorescent lamp or the like after construction and during maintenance, and to provide a terminal block. An object of the present invention is to provide an automatic flasher that is safe without accidental touch.

[0007]

According to a first aspect of the present invention, there are provided a plurality of terminal blocks having terminals connected to a power supply and a control load, and a terminal connected to a power supply utilizing ambient external light. An automatic blinker including an opening / closing function block 2 for opening and closing a connection to a terminal connected to a load, a base 3 and a cover 4 for housing the terminal block 1 and the opening / closing function block 2, and a light receiving cover 5 for receiving external light. The test cover 6 that covers the light receiving cover 5 and blocks external light is held by a container 36 composed of the base 3 and the cover 4.

According to such a configuration, for example, when confirming the operation of the automatic flasher A after installing the automatic flasher A, or replacing the fluorescent light such as a street light or a road light using the same. When checking the lighting of the fluorescent lamp or the like later, since the test cover 6 is held on the body 36 side,
The light receiving cover 5 can be easily covered with the test cover 6 detached from the container 36, and as in the conventional case, the light-shielding bag carried by the worker at a high place is taken out and put on the light receiving cover. Work can be omitted
Workability and safety at high places can be ensured.

Moreover, the base 3 is formed in a box shape having an opening 31 on the front surface, the light receiving cover 5 is fitted to the opening edge of the base 3, the cover 4 is held by the light receiving cover 5, and the terminal block of the light receiving cover 5 is provided. The driver insertion hole 11 is provided at a position facing the one terminal screw 17. According to such a configuration, the terminal block 1 can be confirmed through the substantially transparent light-receiving cover 5, and it is possible to prevent an operator from accidentally touching the terminal block 1 serving as a high-voltage conductive portion, and to ensure safety. Can be secured.

In the present invention, the cover 4 comprises a common part 4a in which the test cover 6 and the terminal cover are shared, and a holding part 4b which is held and positioned by the base 3 or the light receiving cover 5. 4a, a base locking portion 61 that locks to the base 3 and a light receiving cover locking portion 6 that locks to a terminal cover portion 62 that covers the terminal block 1 of the light receiving cover 5.
3, the base locking portion 61 and the light receiving cover locking portion 63 are provided on different sides of the common portion 4a. According to such a configuration, the base locking portion 61 of the common portion 4a is locked to the base 3, the light receiving cover locking portion 63 is locked to the terminal cover portion 62 of the light receiving cover 5, and the sides are different. Since the common part 4a is locked at a plurality of places and different parts, even if one of the common parts 4a is bent and deformed due to aging and the other is unlocked, the state where the other is locked is maintained. It is possible to prevent the common part 4a from coming off the terminal cover part 62 even during long-term use, and to ensure reliability in use.

According to a third aspect of the present invention, a light shielding wall 65 is provided on the base 3 at a position between the terminal covering portion 62 and the light receiving portion 64 of the light receiving cover 5. According to such a configuration, the common unit 4a is replaced with the holding unit 4b, for example.
To cover the light receiving portion 64 to perform a test after installation or maintenance, the terminal cover portion 62
The incidence of external light from the side to the light receiving unit 64 side can be blocked by the light shielding wall 65 on the base 3 side, so that a test can be reliably performed without a test failure.

According to the fourth aspect, the concave portion 66 is formed between the terminal covering portion 62 and the light receiving portion 64 of the light receiving cover 5, and the light shielding piece 27 formed on the cover 4 is inserted into the concave portion 66. The light-shielding piece 27 on the cover 4 inserted into the recess 66 can block the incidence of external light from the terminal cover 62 to the light-receiving unit 64, thereby ensuring a reliable test without any test failure. The light shielding effect can be further enhanced by making the light shielding piece 27 of the cover 4 face the light shielding wall 65 of the base 3 so as to face the light shielding wall 65 of the base 3.

According to a fifth aspect of the present invention, a thin molded portion 67 is formed between the terminal covering portion 62 and the light receiving portion 64 of the light receiving cover 5. According to such a configuration, the light guide from the terminal covering portion 62 side to the light receiving portion 64 side passing through the inside of the material of the light receiving cover 5 is formed into the thin molded portion 67.
And the light-shielding effect can be further enhanced.

[0014]

Embodiments of the present invention will be described below. FIG. 1 is a side sectional view of an automatic flasher according to the present invention. FIG. 2 is a front view. FIG. 3 is an exploded perspective view.

The automatic flasher A has a plurality of terminal blocks 1 having terminals 14 connected to a power supply and a control load, and a terminal 14 connected to a power supply and a control load connected to the power supply by using ambient light. Opening / closing function block 2 for opening and closing the connection with the terminal 14 to be connected, a base 3 and a cover 4 as a container 36 accommodating the terminal block 1 and the opening / closing function block 2, and a light receiving cover 5 for taking in external light. I have. Such an automatic blinker A is used, for example, mounted outdoors, for example, via a plate-shaped mounting bracket 16 having an L-shaped cross section and a screw hole 15 formed at one end.

The terminal block 1 includes a terminal screw 17, a plate-like portion 18 to which the terminal screw 17 is screwed, and a terminal plate 19 serving as the terminal 14.
And the terminals 14 of the plurality of terminal blocks 1 are connected to a power supply and a control load, respectively.

The opening / closing function block 2 includes a mounting substrate 21 and a photovoltaic element 2 mounted on this one surface (front surface), for example, a solar cell that generates a voltage corresponding to the brightness of external light.
2, and the relay 2 mounted on the other surface of the mounting board 21
3 and the like. As shown in FIG. 1, one end of a terminal plate 19 of the terminal block 1 is connected to the mounting board 21, and a relay 23 is provided between the terminal 14 connected to the power supply and the terminal 14 connected to the control load. Is provided. The opening / closing function block 2 is configured to open / close the connection between the terminal 14 connected to the power supply and the terminal 14 connected to the control load (open / close the contact of the relay 23) using ambient external light. I have. Note that a configuration using a switching element instead of the relay 23 may be used.

The base 3 constituting the body 36 is formed of a light-shielding, for example, black resin and has a box shape having an opening 31 on the front surface, and houses a plurality of terminal blocks 1 and the opening / closing function block 2 therein. is there. In the example of FIG. 3, four accommodation chambers 39 for accommodating each terminal block 1 are provided below the front surface of the base 3.
2, each terminal block 1 is housed and held under the front surface of the base 3 in an insulated state.

Above the front surface of the base 3, a pair of support portions 3
3 and another support 34 are formed. Support part 33
A protrusion 33a is formed at the front end of the mounting member 21 to be inserted into the hole 21a formed on the mounting board 21, while a screw inserted through the hole 21b formed on the mounting board 21 is formed at the front end of the supporting portion 34. A screw hole 34a of a tool (not shown) is formed.

As a result, the projection 33a is inserted into the hole 21a, the mounting board 21 is supported by the support portions 33 and 34, and the opening / closing function block 2 is fixed to the base 3 by screwing it with a screw in the screw hole 34a. Is done.

A support portion 35 projecting rearward is formed on the rear surface of the base 3. The support portion 35 has one end surface of the mounting bracket 16 and one of the support portions 35, as shown in FIG. The base 3 is screwed to the mounting bracket 16 by inserting the mounting screw S <b> 1 into the screw insertion hole 35 a formed in the support part 35 and screwing the mounting screw S <b> 1 into the screw hole 15 in a state where the surfaces are aligned.

The photovoltaic element 22 of the opening / closing function block 2 receives external light in a state where the base 3 is mounted on a predetermined mounting portion such as a wall surface of a front entrance or a telephone pole via a mounting bracket 16. A plurality of recesses 35b for fixing the light receiving direction to any one of the plurality of directions.
The projection 16b is formed on one surface of the support 35 and one end of the mounting bracket 16, respectively. Accordingly, if the convex portion 16b is fitted into any of the plurality of concave portions 35b, the light receiving direction can be fixed with directivity in any one of the plurality of directions.

The light receiving cover 5 is formed of a transparent and transparent resin into a thin box shape having an opening on the rear surface, and closes the opening 31 of the base 3. The detailed description of the light receiving cover 4 will be described later.

The cover 4 constituting the container 36 is formed in a thin box shape that covers the front surface of the light receiving cover 5 with, for example, a black resin and has light shielding properties, and is attached to the front surface of the light receiving cover 5.
The cover 4 has a common part 4 a sharing the function of a terminal cover covering the terminal blocks 1 and the function of a test cover 6 covering the photovoltaic element 22, and a holding part 4 b held in the upper half of the light receiving cover 5. Are connected to the holding portion 4b by a thin portion 7 that can be bent as a movable portion.

In the cover 4, a lighting window 13 is formed at the center of the holding portion 4b located in front of the photovoltaic element 22 of the opening / closing function block 2, and the inner edge of the lighting window 13 is formed at the center of the front surface of the common portion 4a. Is formed as a recess 9 so as to correspond to the entire periphery of the lighting window 13. Further, a notch 24 is formed at the center of the upper edge of the lighting window 13, and a locking piece 26 having a claw 25 protrudes from the lower edge of the common part 4 a. Also, as shown in FIG.
b protrudes rearward from the lower end of the rear surface.

As a result, the common portion 4a is bent at the thin portion 7 so that the substantially rectangular convex portion 8 is fitted into the rectangular lighting window 13 with the concave portion 9 as the concave and convex portions. Is locked to the edge of the notch 24, and the common part 4a is supported on the holding part 4b as the test cover 6 in a superimposed manner. . In this case, the inner edge of the projection 8 is engaged with the outer edge of the rectangular projection 43 of the light receiving cover 5 to further enhance the light shielding property.

A pair of left and right hooking projections 28, 28 each having a rearwardly projecting claw 72 projecting rearward, are provided on the left and right portions of the common portion 4a of the cover 4 to protrude rearward. The pair of hooking projections 28 are inserted into holes 29 formed inside the opening edge of the base 3 and penetrating the side wall, and the outer edge of the hole 29 is hooked by a nail outwardly facing the tip. Has become.

Thus, the entire opening 31 of the base 3 can be closed except for the lighting window 13 of the holding portion 4b of the cover 4. A plurality of protrusions 40 are formed inside the side wall of the holding portion 4b, and the cover 4 is held by the light receiving cover 5 by engaging with a receiving portion 42 formed on the side wall of the light receiving cover 4.

As described above, since the test cover 6 that covers the light receiving cover 5 and shields external light is held by the body 36 composed of the cover 4 and the base 3, for example, the automatic blinker A In order to check the operation of the automatic flasher A after the installation, or to check the lighting of the fluorescent lamp or the like after replacing the fluorescent lamp such as a street light or a street light using the same, the test cover 6 receives light. Cover 5 (lighting window 1
3) can be easily covered, and the work of taking out the light-shielding bag held by the worker at a high place and covering the light-receiving cover 5 (lighting window 13) to omit the light can be omitted. Workability and safety at high places can be ensured.

Next, the light receiving cover 5 will be described in detail. At the center of the front surface of the light receiving cover 5, a groove-shaped recess 66 into which the light shielding piece 27 of the cover 4 is inserted is formed, and below the recess 66 and in front of the screw 17 of each terminal block 1. A driver insertion hole 11 for inserting the tip of a driver is formed in the lower part of the front surface of the light receiving cover 4 located. A semi-circular groove 37 is formed on the lower surface of the base 3, and the electric wire connected to the terminal 14 is inserted into the groove 37 on the lower surface of the base 3.
Is to be inserted from.

With the common portion 4a of the cover 5 bent and opened by the thin portion 7, the tip of the driver is inserted into the driver insertion hole 11 and the terminal screw 17 is operated, whereby the cover 5 is inserted from the lower surface side. Terminal 14 of the conductor wire
Can be connected to After connecting the wires, the common part 4a
Is bent at the thin portion 7 so that the latching projection 28 is
9 and lock the claws 72 to form a terminal cover.

As described above, the test cover 6 is used in common with the terminal cover for covering the terminals.
The test cover 6 can be used in common with the terminal cover for protecting the screwdriver insertion hole 11 and the terminal screw 17 and the like from the outdoor environment after the electric wire is connected to the terminal 14. Not only improves reliability, but also enhances workability and safety at high altitudes.

Furthermore, by bending the common portion 4a at the thin portion 7, the common portion 4a can be easily shared by the terminal cover and the test cover 6 during construction and maintenance. In addition, the common part 4a and the holding part 4b can be integrated, so that they can be manufactured at low cost and the cost can be reduced. Moreover,
One of the lighting windows 13 on the common part 4a and the holding part 4b side has a projection 8
On the other hand, since the concave portion 9 is formed on the entire periphery of the lighting window 13 and is fitted into the concave and convex, the common portion 4a is used as the test cover 6 with the holding portion 4b as a test cover 6 so that the surfaces are brought into contact with each other to shield light.
When the common part 4a is used as the test cover 6, there is no gap in the periphery of the lighting window 13, and the light blocking function of the test cover 6 can be further enhanced.

As shown in FIGS. 6 and 7, on the common portion 4a of the cover 4, the above-mentioned hooking projection 28 as a base locking portion 61 which locks into the hole 29 of the base 3 has side walls 68 on the right and left sides. It is provided in. In the lower wall 69 of the common part 4a, a concave part 70 is formed as the light receiving cover locking part 63.
A convex portion 71 is formed on the lower edge of the terminal cover 62 that covers the terminal block 1 of the light receiving cover 5. A plurality of base locking portions 61 and light receiving cover locking portions 63 are provided on different sides of the common portion 4a.

According to this, the claws 72 of the locking projections 28 of the base locking portion 61 of the common portion 4a are hooked from the inside into the holes 29 of the base 3 and the light receiving cover locking portion 63 of the common portion 4a is locked. Since the concave portion 70 is locked to the convex portion 71 of the terminal cover portion 62 of the light receiving cover 5, the common portion 4 a is locked at a plurality of different sides of the common portion 4 a and at different portions of the object. The bending deformation occurs due to the change,
Even when one of the locks 8 or the recess 70 is unlocked, the state where the other locks can be maintained, so that the common portion 4a can be connected to the terminal covering portion 62 even in long-term use. , And the reliability in the state of use can be ensured.

As shown in FIG. 1 and FIG.
A light-shielding wall 65 is provided at a portion of the base 3 between the terminal covering portion 62 and the light receiving portion 64, and the common portion 4a is bent, for example, with respect to the holding portion 4b to cover the light receiving portion 64 as the test cover 6, When a test is performed after construction or during maintenance, the incidence of external light from the terminal cover portion 62 to the light receiving portion 64 can be blocked by the light shielding wall 65 on the base 3 side. As a result, a test can be reliably performed without any test failure.

Further, a groove-like recess 66 is formed between the terminal cover portion 62 and the light receiving portion 64 of the light receiving cover 5, and the light shielding piece 27 formed on the cover 4 is inserted into the recess 66. ing. Accordingly, the light shielding piece 27 on the cover 4 side inserted into the recess 66 can block external light from entering the light receiving section 64 from the terminal covering section 62 side, so that test failure does not occur and the test failure can be surely achieved. A test can be performed, and the light-shielding effect can be further enhanced by making the light-shielding piece 27 face the light-shielding wall 65 of the base 3 (see FIG. 8).

Further, a bent thin-walled molded part 67 is formed between the terminal cover part 62 and the light receiving part 64 of the light receiving cover 5 to form an optical bottleneck and pass through the inside of the material of the light receiving cover 5. As a result, the light guide from the terminal cover portion 62 to the light receiving portion 64 can be attenuated in the thin molded portion 67, and the light blocking effect can be further enhanced.

[0039]

According to the first aspect of the present invention, a plurality of terminal blocks each having a terminal connected to a power supply and a control load, and terminals connected to the power supply and a control load are connected by utilizing ambient external light. An automatic blinker having an opening / closing function block for opening / closing a connection with a terminal, a base and a cover for accommodating the terminal block and the opening / closing function block, and a light receiving cover for taking in external light. Since the test cover that shields the vehicle is held by the body composed of the base and the cover, for example, when confirming the operation of the automatic flasher after installing the automatic flasher, or a street light or a road using this When checking the lighting of a fluorescent lamp or the like after replacing a fluorescent lamp such as a lamp, the test cover is held on the body side, so the light receiving cover can be easily removed with the test cover removed from the body. This eliminates the task of taking out the light-shielding bag carried by the worker at a high place and covering it with the light-receiving cover, as in the past, and performing light-blocking work. In addition, there is an advantage that safety can be ensured.

Further, the base is formed in a box shape having an opening on the front surface, and the light receiving cover is fitted to the opening edge of the base.
The cover is held by the light-receiving cover, and a screwdriver insertion hole is provided in the light-receiving cover at a position facing the terminal screw of the terminal block. There is an advantage that an operator can be prevented from accidentally touching the terminal block, and safety can be ensured.

According to the second aspect, in addition to the effect of the first aspect, the cover is constituted by a common portion in which the test cover and the terminal cover are shared, and a holding portion which is held and positioned by the base or the light receiving cover. In the common part, a base locking part that locks to the base and a light receiving cover locking part that locks to the terminal cover part that covers the terminal block of the light receiving cover are provided, and the base locking part and the light receiving cover locking part are shared. Of the common part, the base locking part of the common part is locked to the base, the light receiving cover locking part is locked to the terminal cover part of the light receiving cover, Are locked to different parts, even if the common part is bent and deformed due to aging and one of the locks is released,
The advantage is that the state in which the other part is locked can be maintained, the common part can be prevented from coming off from the terminal cover part even during long-term use, and reliability in the use state can be ensured. is there.

According to the third aspect, in addition to the effect of the first aspect, the light-shielding wall is provided on the base between the terminal covering portion of the light-receiving cover and the light-receiving portion. When the tester is folded and covers the light-receiving part to perform tests after construction and maintenance, external light from the terminal cover part to the light-receiving part can be blocked by the light-shielding wall on the base side. There is an advantage that a test can be reliably performed without causing a defect.

According to a fourth aspect of the present invention, in addition to the effect of the third aspect, a recess is formed between the terminal covering portion of the light receiving cover and the light receiving portion, and a light shielding piece formed on the cover is inserted into the recess. Therefore, it is possible to block the incidence of external light from the terminal cover part side to the light receiving part side by the light shielding piece on the cover side inserted in the recess,
There is an advantage that the test can be performed reliably without test failure, and the light-shielding effect can be further enhanced by opposing the light-shielding piece on the cover side to the light-shielding wall of the base. is there.

According to the fifth aspect, in addition to the effect of the fourth aspect, since the thin molded portion is formed between the terminal cover portion and the light receiving portion of the light receiving cover, the thin molded portion passes through the inside of the material of the light receiving cover. There is an advantage that the light guide from the terminal cover portion side to the light receiving portion side can be attenuated in the thin-walled molded portion, and the light shielding effect can be further enhanced.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is an exploded perspective view of the same.

FIG. 4 is a side sectional view in which the common part is used as a test cover.

FIG. 5 is a front view of the same.

FIG. 6 is a perspective view of the cover as viewed from the front side.

FIG. 7 is a perspective view of the same cover as viewed from the back side.

FIG. 8 is a partially enlarged sectional view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Terminal block 2 Opening / closing function block 3 Base 4 Cover 5 Light receiving cover 6 Test cover 61 Base locking part 62 Terminal covering part 63 Light receiving cover locking part 64 Light receiving part 65 Light shielding wall 66 Concave part 67 Thin molded part

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Norihiro Murata 1048 Kadoma Kadoma, Kadoma-shi, Osaka Matsushita Electric Works, Ltd. (72) Inventor Yoshinori Akinari 1048 Kazuma Kadoma, Kadoma-shi, Osaka Matsushita Electric Works, Ltd. CF13 CJ11 CJ22 5G052 HA01 HA21 5G055 AE01 AE22 AG13 BD01 BD15 BD18

Claims (5)

[Claims] 1. A plurality of terminal blocks each having a terminal connected to a power supply and a control load, and opening and closing of a connection between a terminal connected to the power supply and a terminal connected to the control load using ambient external light. An automatic blinker having an opening / closing function block, a base block and a cover for housing the terminal block and the opening / closing function block, and a light receiving cover for taking in external light, wherein the test cover covers the light receiving cover and blocks external light. A base formed by a base and a cover, the base is formed in a box shape having an opening on the front surface, a light receiving cover is fitted to an opening edge of the base, the cover is held by the light receiving cover, and a terminal block of the light receiving cover is provided. An automatic blinker characterized in that a driver insertion hole is provided at a position facing the terminal screw of (1). The cover includes a common part in which the test cover and the terminal cover are shared, and a holding part which is held and positioned by the base or the light receiving cover.
A base locking part that locks to the base and a light receiving cover locking part that locks to the terminal cover part that covers the terminal block of the light receiving cover are provided. The base locking part and the light receiving cover locking part are provided on different sides of the common part. The automatic flasher according to claim 1, wherein the automatic flasher comprises: 3. The automatic blinker according to claim 1, wherein a light-shielding wall is provided on a base at a position between the terminal cover part and the light-receiving part of the light-receiving cover. 4. The automatic blinking device according to claim 3, wherein a recess is formed between the terminal cover portion and the light receiving portion of the light receiving cover, and a light shielding piece formed on the cover is inserted into the recess. vessel. 5. The automatic blinker according to claim 4, wherein a thin-walled molded part is formed between the terminal cover part of the light receiving cover and the light receiving part.