JP4964017B2 - Lighting fixtures, emergency lighting fixtures and common emergency lighting fixtures - Google Patents

Description

  The present invention relates to an emergency lighting apparatus in a low-temperature environment such as a refrigerator, a low-temperature warehouse, a low-temperature room, a low-temperature warehouse, and the like.

Conventionally, in order to secure the illuminance in the refrigerator during a power failure in a low temperature environment such as a refrigerator (including a low temperature storage, a low temperature room, a low temperature warehouse, etc., hereinafter simply referred to as a refrigerator) The built-in uninterruptible power supply was placed in a positive temperature environment outside the refrigerator, and the power line was routed inside the refrigerator to supply power to the emergency lighting equipment. This is because when the battery used in the lighting fixture is a Ni-cd (NiCd) battery or a Li-ion (Lithium ion) battery, the operating temperature is 0 ° C. or higher. Therefore, when a battery is used in the refrigerator, it is necessary to use a special battery that can be used even in a low temperature range. Patent Document 1 discloses a technology related to a battery that can be used even in a low temperature environment.
JP 2006-173124 A

In the above-mentioned conventional method, there is a problem that it is necessary to draw in the power line from the uninterruptible power supply separately from the power line in the refrigerator, and it takes a lot of work. In addition, the use of the special battery shown in Patent Document 1 has a problem in that initial investment and replacement cost at the time of battery life are increased.
The present invention has been made in view of the above-described problems, for example, and does not draw a power line from the uninterruptible power supply separately from the power line in the refrigerator and uses a special battery. An object of the present invention is to provide an emergency lighting device in a low temperature environment.

  The luminaire according to the present invention includes, for example, a battery, a lighting circuit board that lights the lighting device using electric power from the battery, and a heat conduction member that transmits heat generated by the lighting circuit board to the battery. And

According to the lighting apparatus according to the present invention, the heat generated by the lighting circuit board can be efficiently transferred to the battery via the heat conducting member, so that the lighting is performed using the power of the battery even in a low temperature environment. There is an effect that can be continued.
In addition, since no special battery is used, the cost of the battery can be kept low, and there is an effect that the cost generated during initial investment and replacement can be reduced.

Embodiment 1 FIG.
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram illustrating a configuration of a lighting fixture 300 according to Embodiment 1. FIG. 1A illustrates a lamp 140 (an example of a lighting fixture) of the lighting fixture 300, a lighting circuit board 120, and the like. FIG. 1B is a disassembled perspective view illustrating the configuration of the heat conductive member 130, the battery 100, and the lighting circuit board 120.

  As illustrated in FIG. 1, the lighting fixture 300 according to the present embodiment includes a lamp 140 (an example of a lighting fixture), a lighting circuit board 120, a battery 100, and a heat conducting member 130. The heat conducting member 130 includes the lighting circuit board 120 and the battery 100. The lamp 140, the lighting circuit board 120, and the battery 100 are connected by a power line 220.

  The lighting circuit board 120 is a circuit board that lights the lamp 140 and is also called a lighting device. During normal operation, power is supplied to the lighting circuit board 120 from a commercial power supply (external power supply 230) through the power line 231. The lighting circuit board 120 lights the lamp 140 with power from the commercial power supply. When the lamp 140 is turned on, the lighting circuit board 120 consumes electric power and generates heat (radiant heat) to the surroundings. The lighting circuit board 120 includes a power supply terminal 121. By connecting the power supply terminal 121 to a power supply line 231 introduced from the outside, electric power that is normally used is supplied from the external power supply 230 to the lighting circuit board 120. .

  The battery 100 is, for example, a Ni-cd (nickel) battery or a Li-ion (lithium ion) battery. The battery 100 is, for example, an emergency power source, and supplies power to the lighting fixture by switching between the commercial power source and the battery 100 by a relay or the like in an emergency, and the lamp 140 is continuously turned on. In FIG. 1, the battery 100 has a flat shape and a plate shape. The flat / plate-shaped battery 100 is an example, and the battery 100 may have a cylindrical shape or a cylindrical shape. The battery 100 can receive heat from the lighting circuit board 120 more efficiently when it is plate-shaped and flat. The battery 100 includes a terminal 101, and the terminal 101 is connected to the lighting circuit board 120. The battery 100 supplies power used in an emergency from the terminal 101 to the lighting circuit board 120. By inserting and removing the terminal 101, the battery 100 can be easily attached to and detached from the lighting circuit board 120.

  The heat conducting member 130 is a substantially rectangular parallelepiped, and is a member having a rectangular tube shape with a partition inside. The heat conducting member 130 is constructed by a bottom plate 131, side plates 132 and 133, a partition plate 134, and a top plate 135. The internal space of the heat conducting member 130 includes a battery housing portion 138 that is a space for housing and enclosing the battery 100, and a circuit housing portion 139 that houses and encloses the lighting circuit board. And the circuit housing portion 139 are separated by a partition plate 134. Since the battery 100 and the lighting circuit board 120 are accommodated in and adjacent to the heat conducting member, heat (radiant heat) generated by the lighting circuit board 120 can be transferred to the battery 100.

The heat conducting member 130 has a front surface (a front surface when viewed from the direction A in FIG. 1) and a rear surface (a rear surface when viewed from the direction A). Therefore, the lighting circuit board 120 and the battery 100 can be accommodated by sliding them in the A direction and pushing them into the heat conducting member 130. After storage, the battery 100 can be installed simply by connecting the terminal 101 to the lighting circuit board 120. Even when the battery 100 is exhausted, the battery 100 is detachably attached by sliding and extruding and replacing the battery 100 alone. It is possible.
If either one of the front surface and the rear surface of the heat conducting member 130 is free, the battery can be inserted. Therefore, either the front surface or the rear surface may be closed and sealed. You may seal by attaching a lid to the front surface and / or the rear surface of the heat conducting member 130 and closing it.

The heat conducting member 130 has attachment portions 136 and 137 so that the lighting circuit 300 can be attached to the lighting fixture 300 in a state of including the lighting circuit board 120, the battery 100, and the like. The attachment portions 136 and 137 are formed in such a manner that the bottom plate 131 is extended from the joint portion between the side plates 132 and 133 and the bottom plate 131 and protrudes outward so that the heat conducting member 130 can be easily attached from the outside with screws or the like. is set up. Therefore, the cross-sectional shape of the heat conducting member 130 is a shape that is like an inverted torii gate. The reason why the mounting portions 136 and 137 are protruded to the outside is to facilitate installation from the outside with screws or the like. When the heat conducting member 130 is attached to the lighting fixture 300 with an adhesive or the like, the attaching portions 136 and 137 may be omitted.
The attachment portions 136 and 137 are provided with four screw-through holes 170 for allowing the screws 171 to pass therethrough. The number of screw-through holes 170 increases or decreases depending on the size and length of the heat conducting member 130, and if it is long, it may be four or more.
The screw through hole 170 may be provided in the bottom plate 131. In that case, the heat conducting member 130 is fixed to the lighting fixture 300 with a screw before the lighting circuit board 120 is accommodated. You may fix through the screw | thread from the back surface of the installed lighting fixture 300. FIG. When the screw through hole 170 is provided in the bottom plate 131, the attachment portions 136 and 137 can be omitted.

When the lighting circuit board 120 is housed in the circuit housing portion 139 of the heat conducting member 130, the lighting circuit board 120 is housed in a state of being sandwiched between the two heat radiation rubbers 110. The heat radiation rubber 110 is a thin film made of, for example, silicon. By covering the heat dissipating rubber 110 on the upper side of the lighting circuit board 120, heat generated from each component of the lighting circuit board 120 can be collected. The heat collected by the heat radiation rubber 110 is efficiently transmitted to the battery 100 as radiant heat generated by the lighting circuit board 120.
There is also a method of filling the circuit side of the lighting circuit board 120 with special urethane instead of covering with the heat radiation rubber 110.
Further, since the heat radiating rubber 110 is also an insulating member, it is provided on the upper side and the lower side of the lighting circuit board 120 so that when it is accommodated in the heat conducting member 130, the circuit portion of the lighting circuit board 120 (the back surface of the lighting circuit board 120). ) And the heat conducting member 130 can be insulated.

The material of the heat conducting member 130 is, for example, aluminum. Aluminum has high thermal conductivity and can efficiently transfer heat (radiant heat) generated by the lighting circuit board 120 to the battery 100.
The processing method of the heat conductive member 130 is made by, for example, extrusion processing, making use of the workability of aluminum. Extrusion is a processing method in which aluminum or an aluminum alloy is extruded at a temperature of 400 to 500 ° C. In general, a cylindrical ingot (billet) is used as an extruder and is extruded from die holes having various shapes by applying a strong pressure to produce an elongated processed product (extruded material). By using this method, it is possible to easily produce a hollow product or a product having a complicated cross-sectional shape, which is difficult to manufacture by other processing methods, by a single extrusion process. In addition, a product with a very strict shape with dimensional accuracy can be produced, and the space (circuit accommodating portions 139 and 138) is provided in the heat conducting member 130 by matching the height, width and size of the battery 100 and the lighting circuit board 120. Can be created.
In the present embodiment, the extrusion process is shown as an example of the processing method of the heat conducting member 130. However, the connecting portion of the bottom plate 131 and the side plates 132, 133 may be joined by welding.

In order to warm the battery 100, the heat conducting member 130 may be covered with a heat retaining member 150. FIG. 2 shows an example when the heat retaining member 150 is covered (covered) around the heat conducting member 130. In FIG. 2, after the battery 100 and the lighting circuit board 120 are accommodated in the heat conducting member 130, the heat retaining member 150 is covered by the outer periphery of the heat conducting member 130. Although the cover is in contact with the top plate 135 and the side plates 132 and 133 of the heat conducting member 130, the heat retaining member 150 may cover all the sides around the heat conducting member 130. If it covers at least a part, there is a heat retaining effect by the heat retaining member. When the front and rear surfaces of the heat conducting member 130 are also covered with the heat retaining member 150, the radiation heat generated by the lighting circuit board 120 is reduced from leaking to the outside, and heat can be stored in the battery 100 for a longer time. It becomes.
The heat retaining member 150 may be a heat insulating member. When the heat retaining member 150 is a heat insulating member, the heat conducting member 130 is insulated from cold air from the outside even in a low temperature environment such as a refrigerator. Therefore, it is possible to prevent the battery 100 from being rapidly cooled. Examples of the heat insulating member include urethane foam, foamed plastic, and glass wool.

  FIG. 3 is a diagram illustrating a modification of the lighting fixture 300 according to the present embodiment. In the lighting fixture 300 shown in FIG. 3, a heater element 160 is added to the upper part of the battery 100 of the lighting fixture 300 shown in FIG. By providing the heater element 160 on the upper part of the battery 100, it is possible to warm from above. That is, the battery 100 can be warmed as a whole by heating from below with the radiant heat generated by the lighting circuit board 120 and from above with the heat generated by the heater element 160. The heater element 160 is, for example, a carbon heater, a metal wire heater, a metal foil heater, a cord heater, or the like. The heater element includes a terminal 161 and is connected to the battery 100 or the external power source 230. The heater element 160 has a sheet shape having substantially the same area as the plane of the battery 100 and is housed together with the battery 100 in the battery housing portion 138 of the heat conducting member 130.

Lighting fixture 300 according to the present embodiment transmits battery 100, lighting circuit board 120 that turns on the lighting tool (light 140) using power from battery 100, and heat generated by lighting circuit board 120 to battery 100. The heat conducting member 130 is provided.
Therefore, the operating temperature can be maintained because the temperature of the battery 100 can be set to 0 ° C. or higher even in a low-temperature environment. Therefore, there is an effect that it is possible to install the battery 100 inside the lighting apparatus 300 without drawing a power line from the outside into the refrigerator. Further, since the temperature of the battery 100 can be maintained, a special battery that operates in a low temperature environment is not used. Therefore, there is an effect that the initial investment and the replacement cost are kept low.

The lighting fixture 300 according to the present embodiment includes a heater element 160 that heats the battery 100.
Therefore, there is an effect that heat can be transferred to the battery 100 more effectively.

The luminaire 300 according to the present embodiment includes a heat retaining member 150 that covers at least a part of the heat conducting member 130.
Therefore, heat can be kept in the heat conducting member 130, and even in a low temperature environment, the temperature of the battery 100 can be set to 0 ° C. or higher for a longer time, so that the operation temperature can be maintained.

  The lighting fixture 300 according to the present embodiment is characterized in that a heat radiating rubber 110 is provided between the lighting circuit board 120 and the heat conducting member 130. Therefore, there is an effect that heat can be transferred to the battery 100 more effectively.

  The heat conducting member 130 of the lighting fixture 300 according to the present embodiment is characterized in that the battery 100 is detachably attached. Therefore, even when the battery 100 is exhausted, it can be easily replaced.

Embodiment 2. FIG.
Hereinafter, other shapes of the heat conduction member 130 used in the lighting fixture 300 described in Embodiment 1 will be described with reference to the drawings.
FIG. 4 is a view showing another shape of the heat conducting member 130. The heat conducting member 130 may have a shape to which the plate battery 100 and the lighting circuit board 120 are attached so that the surface of the plate-shaped battery 100 and the surface of the lighting circuit board 120 are substantially parallel to each other. Therefore, as long as it is attached substantially in parallel, the insertion direction of the battery 100 and the lighting circuit board 120 may be different. As long as the battery 100 can be fixed to the heat conducting member 130, the side plates 132 and 133 and the top plate 135 may be omitted. Patterns (a) to (h) are shown depending on the insertion direction of the battery 100 and the lighting circuit board 120 and the presence or absence of all or part of the side plates 132 and 133 and the top plate 135. The heat conducting member 130 shown in FIG. 4 is an example, and is not limited thereto. What is necessary is just to install the battery 100 and the surface of the lighting circuit board 120 so that it may become substantially parallel by another structure. For example, the partition plate 134 may be installed by supporting it with four columns like a table.

  4A to 4C show an example in which the battery 100 and the lighting circuit board 120 are installed so as to be substantially perpendicular to the bottom plate 131. FIG. FIG. 4A shows an example in which the insertion direction of the battery 100 and the lighting circuit board 120 is changed to the heat conducting member 130 shown in the first embodiment so as to be vertical. FIG. 4B is an example in which a part of the top plate 135 on the battery 100 side is omitted. Since it is different from the heat dissipation direction from the lighting circuit board 120, even if omitted, heat propagation is not affected. FIG. 4C shows an example in which all the top plate 135 is removed. Depending on the shape of the luminaire 300, the insertion direction may be advantageous depending on the shape.

  4D to 4H are examples in which the top plate 135 of the heat conducting member 130 shown in the first embodiment is removed. It is sufficient that heat is radiated from the lighting circuit board 120, and the presence or absence of the top plate 135 does not affect the propagation of heat from the lighting circuit board 120 to the battery 100.

  FIG. 4E is an example in which a part of the side plate 132 in FIG. 4D is omitted. If the battery 100 can be fixed, the side plate 132 facing the end of the battery 100 may be omitted. FIG. 4G shows an example in which a part of the side plates 132 and 133 facing both ends of the battery 100 is omitted. FIG. 4F is an example in which a part of the side plate 132 facing the side surface of the lighting circuit board 120 is further omitted. The distance between the plate-shaped battery 100 and the lighting circuit board 120 may be maintained at a substantially constant distance so as to be able to maintain the partition plate 134 that can be arranged in parallel. In FIG. A part of the side plate 133 that supports the plate 134 is left, and the other parts are omitted. By omitting a part of the heat conducting member 130, there is an effect that the material cost and the production cost can be reduced.

Embodiment 3 FIG.
Below, the example of arrangement | positioning of the lighting fixture 300 shown in Embodiment 1 is demonstrated. FIG. 5 is a diagram illustrating an example of the case where the lamp 140 and the heat conducting member 130 are arranged inside the lighting fixture 300. One end of the lamp 140 is fitted and connected to the socket 210 in the housing 200 of the lighting fixture 300. The socket 210 is connected to the lighting circuit board 120 by a power line 220 and incorporates a connection terminal (not shown) for detachably connecting the lamp 140. When the lamp 140 is lit, the vicinity of the joint with the socket 210 becomes hot and emits radiant heat. Therefore, as shown in FIG. 5, if the heat conduction member 130 is installed near the connection portion of the socket 210 and the lamp 140 and the end portion of the lamp 140, not only the radiant heat from the lighting circuit board 120 but also the lamp 140 is turned on. The battery 100 can also be warmed by the emitted radiant heat. When installing, the screw 171 is fixed to the housing 200 through the screw through hole 170 and installed.
That is, the battery 100 can be warmed from the front side (upper side) and the back side (lower side) by attaching the heat conducting member 130 to the housing 200 so that the battery 100 is disposed between the lamp 140 and the lighting circuit board 120. It is possible to maintain the operating temperature necessary for using the battery 100 even in a low temperature range.

  By using the lighting fixture 300 described in the first to third embodiments, it is possible to obtain an emergency lighting fixture that can be used even in an always-low temperature environment such as a refrigerator room without drawing in a power supply line necessary in an emergency. It becomes possible.

  If the lighting apparatus 300 described in the first to third embodiments is used, a common emergency lighting apparatus that can be used even in a warehouse that is in a low temperature environment depending on the season, for example, without drawing in a power supply line necessary in an emergency. Can be obtained.

FIG. 5 shows the first embodiment and is a configuration diagram showing a configuration of a lighting fixture 300. FIG. FIG. 5 shows the first embodiment, and is a front view showing an example when a heat retaining member 150 is put around a heat conducting member 130. FIG. FIG. 5 shows the first embodiment and shows a modification of the lighting apparatus 300. FIG. 5 shows the second embodiment and shows another shape of the heat conducting member 130. FIG. 6 shows the third embodiment, and shows an example of an arrangement when the lamp 140 and the heat conducting member 130 are attached inside the lighting fixture 300. FIG.

Explanation of symbols

  100 battery, 101 terminal, 110 heat radiation rubber, 120 lighting circuit board, 121 power supply terminal, 130 heat conducting member, 131 bottom plate, 132, 133 side plate, 134 partition plate, 135 top plate, 136, 137 mounting portion, 138 battery Housing part, 139 Circuit housing part, 140 lamp, 150 heat retaining member, 160 heater element, 161 terminal, 170 screw through hole, 200 housing, 210 socket, 220 power line, 230 external power source, 231 power line, 300 lighting fixture.

Claims (7)

Battery,
A lighting circuit board that lights the lighting device using power from the battery;
A heat conduction member that transfers heat generated by the lighting circuit board to the battery ;
A heat retaining member covering at least a part of the heat conducting member;
With
A lighting apparatus comprising a heat-dissipating rubber between the lighting circuit board and the heat conducting member.   The lighting apparatus according to claim 1, further comprising a heater element for heating the battery. The heat conducting member, luminaire according to claim 1 or 2, characterized in that removably attaching the battery. The battery is a plate-shaped battery,
The said heat conductive member attaches a plate-shaped battery and a lighting circuit board so that the surface of a plate-shaped battery and the surface of a lighting circuit board may become substantially parallel, The any one of Claims 1-3 characterized by the above-mentioned. Lighting fixtures. The luminaire includes a housing for attaching a heat conducting member and a luminaire.
The housing, when attached lighting fixture, according to any one of claims 1-4, characterized in that to attach the heat conductive member as the battery is disposed between the lighting circuit substrate and lighting fixture Lighting fixtures. A lighting fixture according to any one of claims 1 to 5 ,
A power supply terminal connected to the lighting circuit board and connected to a power line introduced from the outside;
An emergency lighting apparatus comprising: a socket having a connection terminal connected to the lighting circuit board and removably connected to the lighting device. A lighting fixture according to any one of claims 1 to 5 ,
A power supply terminal connected to the lighting circuit board and connected to a power line introduced from the outside;
A common emergency lighting apparatus comprising a socket which is connected to the lighting circuit board and has a connection terminal for detachably connecting the lighting apparatus.

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