JP4742814B2 - Display lighting fixture - Google Patents

Description

  The present invention relates to a display lighting device such as a guide light.

  A guide light of a conventional example (see, for example, Patent Document 1) is shown in FIGS. 150 is a box-shaped instrument body, 151 and 161 are lamp holders, 152 and 162 are display units, 153 is a lighting block, 154 is a battery box containing a storage battery, 155 is an inspection block, 156 is a terminal block, and 157 is a lamp socket. It is.

  In the above-mentioned guide light, the lighting block 153 is covered up and down with metal cases 163 and 164 for preventing similar burning as shown in FIG. 7, and the terminal block 156 and the ground terminal 169 are attached to the back plate of the instrument body 150. The metal fitting 166 is provided, and the frame portion of the instrument main body 150 has an attachment portion 167 for attaching to the ceiling, and the attachment portion 167 is provided with a ceiling surface reinforcing metal fitting 168 for reinforcement at the time of attachment. Reference numeral 177 denotes an electric wire insertion hole provided in the attachment portion 167.

Further, the ground terminal on the back plate of the instrument body 150 is electrically connected to the metal case 163 of the lighting block 153 by an electric wire, and the printed circuit board of the lighting block 153 is connected by connecting the printed board of the lighting block 153 and the metal case 163 with an electric wire. The board is also grounded.
JP 2002-25313 A

    However, since the guide light of this conventional example is thin, the installation part 167 is attached to the ceiling while the electric wire is passed through the electric wire insertion hole 177 and connected to the terminal block 156, or the installation of the appliance incorporating the internal parts is poor. It was.

  In addition, the back plate metal fittings of the appliance main body 150, the ceiling metal fitting 168, and the metal case 164 below the lighting block 153 were separated into a plurality of plates, resulting in a large number of parts and poor assembly. .

  Furthermore, since the ground terminal 169 and the metal case 163 of the lighting block 153 and the printed circuit board of the lighting block 153 are connected by electric wires, the assemblability is poor and the cost is high.

    Accordingly, an object of the present invention is to solve the above-mentioned problems, to provide a display lighting device that improves workability and is excellent in assemblability.

The display lighting device of the present invention is formed in a box shape in which the device body has an opening on the front surface with a back plate and a frame portion surrounding the periphery of the back plate, and the frame portion has a wire insertion hole and a mounting hole . And a back-side opening through which fingers can be inserted into the back plate. The reinforcing plate is made of metal, and has an upper surface plate portion that reinforces the mounting hole and avoids the wire insertion hole on the inner surface of the frame portion in the instrument body, and reinforces the back plate and avoids the rear side opening. A back plate is integrally formed with the top plate. The display panel is disposed so as to close the opening. A light source is provided in the instrument body to illuminate the display panel. A lighting block is attached to the back plate and lights the light source. The battery box has a connector portion attached to the back plate portion and connected to the lighting block. The terminal block has an insertion terminal that is attached to the back plate portion and is connected to the lighting block, and has a ground piece that is grounded to the reinforcing plate. The member closes the back side opening outside the back plate. The instrument body forms a protrusion on the peripheral edge of the back side opening of the back plate. The top plate portion of the reinforcing plate has a hole that aligns with the mounting hole, and the back plate portion has a communication opening that engages with the protrusion. The lighting block has a battery terminal and a receiving terminal. The battery box is fixed to the back plate portion of the reinforcing plate in a state where the lighting block is attached to the back plate portion of the reinforcing plate, so that the connector portion becomes the battery terminal. Contact. The terminal block incorporates a quick connection terminal, and the terminal block is fixed to the back plate portion of the reinforcing plate, so that the insertion terminal contacts the receiving terminal and the grounding piece becomes the reinforcing plate. The grounding piece is in contact with and connected to the grounding quick connection terminal of the quick connection terminals .

  According to the display lighting fixture of the present invention, the box-shaped fixture body is provided with an opening through which the fingers can be inserted on the back side in addition to the front opening, so that the connection of the electric wire to the terminal block, the attachment of the fixture body to the ceiling, etc. It is possible to improve the workability when mounting the instrument. In addition, the metal plate on the back plate side of the conventional lighting block, the terminal block / grounding terminal mounting bracket, and the ceiling surface reinforcing bracket can be integrated with the reinforcing plate to reduce the number of parts and improve the assembly. In addition to being able to improve the workability, it can serve to compensate for the decrease in rigidity of the instrument main body accompanying the rear opening of the instrument main body, and the material for the rear opening can be reduced.

The battery box is fixed to the back plate of the reinforcing plate, so that the connector comes into contact with the battery terminal of the lighting block, and the terminal block is fixed to the back plate of the reinforcing plate, so that the plug-in terminal is received by the lighting block. Since it contacts the terminal and the grounding piece contacts the reinforcing plate, the electrical connection between the terminal block and the battery box and the lighting block, and the ground connection between the terminal block and the reinforcing plate can be directly connected. The assembly workability is further improved.

  A display lighting apparatus according to an embodiment of the present invention, for example, a double-sided guide light will be described with reference to FIGS. In other words, this guide lamp includes an appliance body 1, lamp holders 2 and 30, a lighting block 3, a battery box 4, a terminal block 5, display units 6 and 31, and a reinforcing plate 32.

  The instrument body 1 has a rectangular parallelepiped box shape with an opening 1f formed on the front surface, in particular a thin box shape, a back plate 1a on the back side of the opening 1f, side plates 1b and 1c, a lower plate 1d constituting a frame portion, It consists of an upper plate 1e. The edge of the frame on the back plate 1a side has a protruding portion 60 that protrudes outward from the back plate 1a. A locking piece 14 using a battery box fixing nail is provided in an upright position near the lower end of the side plate 1b of the back plate 1a, and a back side opening 1g for inserting a finger is formed on the upper portion, and a rib is formed on the peripheral portion thereof. The protruding ridge 47 is formed. A plurality of inspection-related holes 9 are provided in the lower plate 1d. The upper plate 1e is provided with a wire insertion hole 10 used for ceiling mounting and a mounting hole 11 as a mounting portion. The side plates 1b and 1c are provided with lamp sockets 12 for supporting the lamp holder 2 at their upper ends. The lamp sockets 12 have lamp mounting portions 12a formed at both ends, and the back plate 1a facing the lamp mounting portion 12a on the back side. A hole for inserting the connection terminal 22 of the lamp holder 30 is opened. Further, an engaging portion 13 for hooking and attaching the hook portion 6a of the display unit 6 to the intermediate portion of the side plates 1b and 1c is provided on the opening edge and the protruding portion 60 protruding outward from the back plate 1a.

  The reinforcing plate 32 is made of metal, and has an upper surface plate portion 40 that reinforces the attachment hole 11 on the inner surface of the upper plate 1e of the frame portion, and a back plate portion 41 that reinforces the back plate 1a integrally with the upper surface plate portion 40. Have. Further, a lower surface plate portion 44 that contacts the lower plate 1d is formed on the opposite side of the upper surface plate portion 40 of the back surface plate portion 41, and a connecting piece 45 is provided on the side portion of the back surface plate portion 41. For example, a hole 46 is formed. A hole 42 that matches the wire insertion hole 10 and a hole 43 that matches the attachment hole 11 are formed in the upper surface plate portion 40. The back plate 41 is formed with a communication opening 48 that aligns with the back side opening 1g, the edge engages with the outer peripheral surface of the protrusion 47, forms a grounding hole 49, and further protrudes the locking portion 14. A hole 50 is formed.

  Each of the lamp holders 2 and 30 holds a straight tube lamp and a reflector using a cold cathode lamp as a light source, and has connection terminals 22 connected to electrodes of the straight tube lamp at both ends. The connection terminals 22 are lamp sockets. 12 lamp mounting portions 12a are mounted. The lamp holder 2 thereby closes the upper part of the opening 1 f of the instrument body 1.

The lighting block 3 incorporates a lighting circuit for lighting a straight tube lamp serving as a light source, and is attached to a back plate 41 of a reinforcing plate located on the right side when viewed from the front side of the lower plate 1d of the instrument body 1. The lighting block 3 is composed of a case and a printed circuit board on which electronic components including lighting parts are mounted, and the printed circuit board is disposed in parallel to the back plate 1a. The electronic components include an inspection switch 85, a lamp monitor 87, and the like, which are opposed to the inspection-related holes 9 on the lower plate 1d of the instrument body 1. The lamp monitor 87 is lit to notify the lamp life when a set time of a timer for counting the life of the straight tube lamp has elapsed. The inspection switch 85 is for confirming that the light source is turned on by the storage battery. The electronic component has a terminal connected to the battery box 4 and a receiving terminal connected to the terminal block 5 provided side by side. A terminal connected to the battery box 4 is provided in the recess 28 of the lighting block 3.

The upper surface of the lighting block 3 is covered with a metal upper case 52. The upper case 52 has a side plate 52a facing the connecting piece 45, a side plate 52b opposite to the side plate 52a, and an upper plate 52c . As shown in FIG. 4 , the upper case 52 has a claw-like shape that engages the hole 46 in the side plate 52a. An engaging portion 59 is provided, for example, a hole serving as a locking portion is provided in at least one of the side plate 52b and the upper plate 52c, and a claw-like engaging portion for locking to the locking portion is provided on the lighting block 3 side. . Therefore, the upper case 52 is fixed to the lighting block 3 with these locking portions and the like. At this time, a gap H is provided between the lighting block 3 and the side plate 52a, and the engaging / disengaging operation of the engaging portion 59 is ensured. Reference numeral 57 denotes a reset switch provided in the lighting block 3 for resetting a timer for counting the lamp life when the lamp is replaced. Reference numeral 58 denotes a groove-shaped guide portion that guides the connector portion 27 of the battery box 4.

  The battery box 4 is disposed on the left side of the lighting block 3 in the appliance body 1. The battery box 4 has a built-in storage battery, and the connector portion 27 is directly connected to a terminal provided in the recess 28 of the lighting block 3. The battery box 4 is fixed by a locking claw 14 provided in the instrument main body 1 and a hook portion provided in the recess 28 where the lever portion 27a of the connector portion 27 is hooked. Reference numeral 56 denotes a protrusion guided by the guide.

  The terminal block 5 is located above the battery box 4 and below the back side opening 1g and the communication opening 48, that is, on the side opposite to the wire insertion hole 10 and the mounting hole 11 of the back side opening 1g. The insertion terminal 5 c of the terminal block 5 is directly connected to the receiving terminal 29 that is attached to the back plate portion 41 and provided in the lighting block 3. The terminal block 5 has a built-in quick connection terminal, and has an electric wire insertion hole 5 b that opens obliquely toward the lighting block 3, and among the fast connection terminals, the ground quick connection terminal is formed on the back plate 41 of the reinforcing plate 32. A grounding piece 5d that contacts the edge of the formed grounding hole 49 protrudes from the lower surface. By attaching the attachment portion 5a to the back plate portion 41 with a connector such as a screw, the grounding piece 5d contacts the edge of the grounding hole 49, and the ground connection is achieved at the same time. A part of the receiving terminal 29 is also connected to the ground of the printed circuit board, and the plug-in terminal 5c contacting the receiving terminal 29 is connected to a ground quick connection terminal. Then, the power line, the feed line, and the ground line introduced through the electric wire insertion hole 10 and the hole 42 of the instrument body 1 are inserted and connected to the predetermined electric wire insertion hole 5 b of the terminal block 5.

  The display unit 6 serving as a rectangular display panel has a light guide plate, and the hooking portion 6a is locked to the locking portion 13 of the appliance main body 1 so as to block the lower opening portion of the lamp holder 2 of the opening 1f. . At this time, the straight tube lamp faces the end surface of the light guide plate, and the light of the straight tube lamp enters the end surface of the light guide plate, causing the display unit 6 to shine. That is, before inserting the lamp holder 2, the display unit 6 is inserted into the opening 1 f and abuts and slides on the upper surface of the locking portion 13 to engage the hooking portion 6 a with the rear surface side of the locking portion 13. The holder 2 is attached and the display unit 6 is fixed simultaneously. As a result, the straight tube lamp faces the end face of the light guide plate. Therefore, the display unit 6 can be detached from the lamp socket by moving the lamp holder 2 in a direction perpendicular to the display surface while being attached to the opening 1f.

  The display unit 31 has the same configuration as that of the display unit 6, and the hook portion 6 a of the display unit 31 is hooked on the hook portions provided on the side plates 1 b and 1 c. The display unit 31 also serves as a member that closes the opening.

  According to this embodiment, since the back side opening 1g is provided in the back surface of the instrument main body 1, the finger does not hit the back plate 41 when attaching the instrument, and the back side opening from the instrument back side. Since it is possible to put fingers through 1 g and the communication opening 48, workability is improved. The reinforcing plate 32 supports the lighting block 3 and includes a back plate portion 41 that reinforces the back plate 1a, an upper surface plate portion 40 that reinforces the upper plate 1e having the attachment holes 11 and the wire insertion holes 10, and a lower surface plate portion 41. Since it is formed integrally, even if the back side opening 1g is provided on the back surface of the instrument body 1, the right and left sides of the communication opening 48 of the back plate 41 are connected, so that the rigidity of the instrument body 1 does not drop, The rigidity of the instrument can be maintained.

A ridge 47 using ribs is provided along the inner side of the communication opening 48 of the reinforcing plate 32 at the edge of the back side opening 1g of the back plate 1a of the device main body 1. It serves as a positioning, and the reinforcing plate 32 is easily positioned.

  Further, the printed circuit board of the lighting block 3 and the terminal block 5 with the ground terminal are directly connected by the insertion terminal 5 c and the receiving terminal 29, but the terminal block 5 and the reinforcing plate 32 are grounded from the terminal block 5. Since the piece 5d is electrically connected by being fitted into the grounding hole 49 of the reinforcing plate 32, it is not necessary to connect with the lead wire.

  In addition, both the metallic upper case 52 and the reinforcing plate 32 are electrically connected when the engaging portion using the protrusion 59 provided in the upper case 52 is fitted into the engaging portion using the hole 46 such as a square. Has been taken. Therefore, both can conduct without an electric wire.

  In addition, a gap H is provided between the upper case 52 and the lighting block 3 to provide a space for taking advantage of springiness when the upper case 52 is fitted, so that the attachment and detachment can be performed smoothly.

It is a disassembled perspective view of the display lighting fixture of one embodiment of this invention. It is a front view of the instrument main body of the state which removed the display unit. It is a perspective view which shows the relationship between an instrument main body, a reinforcement board, a lighting block, an upper case, and a terminal block. It is a fragmentary sectional view which shows the attachment state of an upper case. It is a disassembled perspective view of the lighting fixture for a display of a prior art example. It is a front view of the instrument main body of the state which removed the display unit. It is a disassembled perspective view which shows the relationship between an upper case, a lower case, and a lighting block.

Explanation of symbols

1 instrument body 1a back plate 1b, 1c side plate,
1d Lower plate 1f Opening 1g Rear side opening 2 Lamp holder 3 Lighting block 5 Terminal block 6 Display unit 10 Electric wire insertion hole 11 Mounting hole 31 Display unit 32 Reinforcement plate 40 Upper surface plate portion 41 Rear surface plate portion

Claims (1)

The back plate and a frame portion surrounding the periphery of the back plate are formed in a box shape having an opening on the front surface, and the frame portion has a wire insertion hole and a mounting hole , and a back side opening through which fingers can be inserted into the back plate. An instrument body having an upper surface plate portion that reinforces the attachment hole and avoids the wire insertion hole and reinforces the back plate and avoids the rear side opening. A metal reinforcing plate integrally formed with the upper surface plate portion, a display panel disposed so as to close the opening, a light source provided in the instrument main body for illuminating the display panel, and attached to the rear plate portion lighting block and a battery box having a connector portion connected to the lighting block attached to the back plate portion, pointing write connected to the lighting block attached to the back plate portion to light the light source Te Comprising a terminal block having a grounding strip be grounded to the reinforcing plate and having a terminal, and a member for closing the rear-side opening on the outside of the back plate,
The instrument body forms a protrusion on the peripheral edge of the back side opening of the back plate,
The top plate portion of the reinforcing plate has a hole that aligns with the mounting hole, and the back plate portion has a communication opening that engages with the protrusion,
The lighting blocks have a battery terminal and the receiving terminal,
The battery box is fixed to the back plate portion of the reinforcing plate in a state where the lighting block is attached to the back plate portion of the reinforcing plate, so that the connector portion becomes the battery terminal. Touch,
The terminal block incorporates a quick connection terminal, and the terminal block is fixed to the back plate portion of the reinforcing plate, so that the insertion terminal contacts the receiving terminal and the grounding piece becomes the reinforcing plate. The lighting fixture for display which contacts and the said ground piece is connected to the quick connection terminal for earth | ground among the said quick connection terminals .

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