CN101303108A - Strip-shaped light source lighting device - Google Patents

Abstract

The invention provides a strip-shaped light source lighting device which comprises a strip-shaped component, a plurality of radiating fins and a plurality of light source components. The strip-shaped component is provided with a first surface and a second surface. The heat sink is disposed on the first surface. The light source assembly is detachably fixed on the second surface. The lighting device with the strip-shaped light source can be arranged in an advertisement box. The distance between the light source components can be adjusted to obtain a more uniform light source compared with the traditional fluorescent lamp source. Moreover, the strip-shaped light source lighting device has the characteristics of longer service life and more power saving compared with the traditional fluorescent lamp source.

Description

Ribbon light source lighting device

technical field

The invention relates to a ribbon-like light illumination apparatus (Ribbonlike light illumination apparatus), in particular to a ribbon-like light illumination apparatus which can adjust the distance between light sources to obtain a uniform light source.

Background technique

At present, the light sources of the lighting equipment used in families, public places or shops mostly use old-fashioned light bulbs, quartz lamps, fluorescent lamps, halogen lamps and mercury lamps or the like. These light sources all require a relatively large installation space and consume relatively high energy. Also, it is not easy to obtain a uniform light source.

In addition, light emitting diodes (Light emitting diodes, LEDs) have the advantages of power saving, high luminous efficiency, and small size, and are suitable for lighting in small installation spaces. However, the heat generated by the LED during operation will affect its junction temperature, which affects the luminous efficiency, energy consumption and service life of the LED. Especially for light-emitting diodes with higher power, the problem of heat dissipation will be more serious.

In the application field of advertising boxes, most of the traditional light sources use fluorescent tubes. Although fluorescent tubes can obtain a relatively uniform light source, after a period of use of fluorescent tubes, before they completely fail, their light-emitting areas will become more and more uneven. Due to uneven luminous brightness, the overall brightness of the advertising box will be uneven, affecting the advertising box display function.

Contents of the invention

The object of the present invention is to provide a strip-shaped light source lighting device that can adjust the distance between light sources to obtain a uniform light source, and the strip-shaped light source lighting device can also provide structural heat dissipation.

The strip-shaped light source lighting device of the present invention includes a strip-shaped component, several cooling fins, several light source components and a control circuit. The strip member has a first surface and a second surface. The cooling fins are arranged on the first surface. The light source assembly is detachably fixed on the second surface. The control circuit connects the light source components in series through a power line to control the light source components to emit light.

Moreover, each light source component includes at least one light emitting diode, and the light emitting diode can be a white LED, a red LED, a green LED, a blue LED, a yellow LED or a composite LED. Therefore, each light source assembly can emit light of different colors, so that the lighting functions of the strip light source lighting device of the present invention are more diversified. In addition, the distance between the light source components fixed on the second surface of the strip member can be adjusted to obtain a uniform light source. Moreover, a lens is installed on the light emitting diode of each light source assembly to scatter the light emitted from the light emitting diode, so that it is easier to obtain the uniform light source.

In addition, several strip-shaped light source lighting devices of the present invention can be installed side by side in an advertising light box, and the light source components of the strip-shaped light source lighting devices can be arranged in a staggered manner to provide a uniform backlight source to replace the traditional fluorescent light source . Because the strip-shaped light source lighting device of the present invention can use light-emitting diodes to prolong the life of the light source, and the use of the lens can make the surface light source produced by the strip-shaped light source lighting device more uniform.

Similarly, several strip-shaped light source lighting devices of the present invention can also be connected in series to form an atmosphere light, and can be installed on a beam column, on a staircase or in a built-in ceiling. In addition, a reflection mirror can be installed on each light source component, and is used to direct a light emitted from the light source component to the opposite side of the reflection mirror. Therefore, the strip light source lighting device of the present invention can be used as more diverse atmosphere lights.

In addition, the light source assembly of the strip-shaped light source lighting device of the present invention can directly dissipate heat through the strip-shaped member, reduce the junction temperature of the LEDs to maintain good luminous efficiency and prolong the lifespan of the LEDs.

The technical effect of the strip light source lighting device of the present invention is that it can obtain the required light source distribution by adjusting the distance between the light source components, and the heat generated by each light source component during operation can be set in the The heat dissipation fins on the bar members are dissipated to reduce the junction temperature, improve the stability of light emission and prolong the service life.

Description of drawings

Fig. 1 is the schematic diagram of a preferred embodiment of the present invention;

Fig. 2A is a partial exploded view of the strip light source lighting device in a preferred embodiment of the present invention;

Fig. 2B is another partial exploded view of the strip light source lighting device in a preferred embodiment of the present invention;

Fig. 3A is a schematic diagram of an application embodiment of the present invention;

Fig. 3B is a schematic diagram of the position of the light source assembly according to the application embodiment; and

Fig. 3C is a cross-sectional view of the strip light source lighting device of the present invention installed in a built-in ceiling.

Detailed ways

In order to make the above and other objects, features, and advantages of the present invention more comprehensible, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Please refer to FIG. 1 , which is a schematic diagram of a preferred embodiment of the present invention. According to the preferred embodiment, the strip-shaped light source lighting device 1 of the present invention includes a strip-shaped component 11 , several heat sinks 12 , several light source components 13 and a control circuit 14 . The strip member 11 has a first surface 112 and a second surface 114 . The heat sink 12 is disposed on the first surface 112 . The light source assembly 13 is detachably fixed on the second surface 114 . The control circuit 14 is connected in series with the light source components 13 through a power line 142 (as shown in FIG. 2A ) to control the light source components 13 to emit light. However, in practical applications, the light source components 13 can also be connected in parallel, which depends on the design of the product.

Wherein, although the first surface 112 is generally opposite to the second surface 114 as shown in FIG. 1 , it is not limited thereto. That is to say, the first surface 112 and the second surface 114 may be adjacent to each other due to space configuration constraints or other reasons. In addition, although FIG. 1 only shows that only one side is provided with the heat sink 12 , in practical applications, other surfaces of the strip member 11 may also be provided with heat sinks, depending on the design of the product. In addition, as shown in FIG. 1 , the cooling fins 12 are integrally formed with the strip member 11 , but not limited thereto. That is to say, the heat sink 12 can be added on the bar-shaped member 11, for example, the heat sink 12 can be arranged on the bar-shaped member by locking, welding, pasting or other methods that can be used to fix objects. 11 on. Generally, the integrally formed components are mostly aluminum extrusion (Aluminum extrusion), but not limited thereto. In principle, the strip member 11 and the heat sink 12 are mostly made of high thermal conductivity materials, which are usually metal materials, but not limited thereto. In addition, because the heat generated by the light source assembly 13 during operation is mainly dissipated through the heat sink 12, if the heat sink 12 is arranged on the strip member 11 in an external manner, attention should be paid to heat conduction. question.

According to the preferred embodiment, each light source assembly 13 includes at least one light emitting diode (not shown in FIG. 1 ), and the light emitting diode can be white LED, red LED, green LED, blue LED, yellow LED or composite LEDs. Therefore, each light source assembly 13 can emit light of different colors, so that the lighting functions of the strip light source lighting device 1 of the present invention are more diversified. In addition, the LEDs of each light source assembly 13 can be soldered on a metal circuit board 132 (as shown in FIG. 2A ). The metal circuit board 132 is in direct contact with the second surface 114 of the strip member 11 to increase heat conduction efficiency (please also refer to FIG. 2A ). The light emitting diodes of each light source assembly 13 can also be packaged on a thermally conductive substrate, and each light source assembly 13 is arranged on the second surface 114 so that the thermally conductive substrate is in close contact with the strip member 11 to To achieve the effect of heat conduction. In addition, a lens 134 can be installed on the LED of each light source assembly 13, so that the light emitted from the LED passes through the lens 134 and is emitted uniformly and divergently. Therefore, the strip-shaped light source lighting device 1 of the present invention can easily produce a uniform strip-shaped light source.

As shown in FIG. 1 , each light source assembly 13 may further include an upper cover 136 for protecting the light source assembly 13 . Moreover, a reflection mirror 138 is installed above the upper cover 136 of each light source assembly 13 . The reflector 138 can direct a light emitted from the light source assembly 13 to the opposite side of the reflector 138 .

Please refer to FIG. 2A . FIG. 2A is a partially exploded view of the strip light source device 1 in a preferred embodiment of the present invention (reflector 138 is not shown). The strip member 11 has a pair of thread grooves 116 . Each thread groove 116 has a horizontal groove 1162 . Therefore, each light source assembly 13 can be fixed on the second surface 114 of the strip member 11 by more than two bolts 15 . The bolts 15 are respectively locked into the thread grooves 116 , and the bolts 15 coincide with the cross-stripes 1162 , that is, the distance between the cross-stripes 1162 is roughly equal to the pitch of the bolts 15 . As for the depth of the horizontal stripes 1162, it depends on the design requirements. If it is too deep, the lock will not be tight, and if it is too shallow, it will be difficult to lock in. However, in practical applications, the light source assembly 13 may also be fixed by self-tapping screws. It should be noted that, according to the preferred specific embodiment, although the light source assembly 13 is fixed by two bolts 15, in practical applications, it can also be fixed by a single bolt.

Similarly, the strip member 11 may also have a pair of T-shaped slots 116'. Each T-shaped slot 116' has a wider sliding slot 1162', as shown in Figure 2B. Therefore, each light source assembly 13 can be fixed on the second surface 114 of the strip member 11 by more than two bolts 15' and matching nuts 152. The nut 152 is placed in the wider slot 1162' and can only move within the slot 1162'. By fitting the bolts 15' with the nuts 152 respectively, that is, the bolts 15' are locked into the matched nuts 152, so that the light source assembly 13 is fixed on the second side of the strip member 11. surface 114 . It should be noted that the nut 152 is not limited to a standard nut, and a hole can also be drilled and tapped in the middle of a slider 152' instead, as shown in FIG. 2B .

Since the light source assembly 13 is locked by bolts, the fixing method of the light source assembly 13 is a detachable fixing method, and the fixed position of the light source assembly 13 can be changed at will. Therefore, the strip light source lighting device 1 of the present invention can adjust the distance between the light source assembly 13 fixed on the strip member 11 to obtain the required light source distribution. In addition to the scattering effect of the lens 134, the strip-shaped light source lighting device 1 of the present invention can easily obtain a strip-shaped uniform light source. In addition, the power cord 142 used to connect the light source components 13 in series can also be placed in the threaded groove 116 or the T-shaped groove 116', which has the functions of being beautiful and protecting the power cord 142.

It should be noted that since the light source assembly 13 dissipates heat through the heat sink 12 provided on the strip member 11 , the light source assembly 13 should be in close contact with the strip member 11 as much as possible. Therefore, the contact interface between the light source assembly 13 and the strip member 11 can be filled with a high thermal conductivity material, such as silver glue, to improve the heat conduction efficiency.

Therefore, the strip-shaped light source lighting device 1 of the present invention can obtain the required light source distribution by adjusting the distance between the light source assemblies 13, and the heat generated by each light source assembly 13 in operation can be obtained by setting the distance between the strips. The cooling fins 12 on the shape member 11 are dissipated to reduce the junction temperature, improve the stability of light emission and prolong the service life.

Please refer to FIG. 3A . FIG. 3A is a schematic diagram according to an application embodiment of the present invention. The right figure of Fig. 3A is a cross-sectional view along line X-X in the left figure. According to the application example, several strip light source lighting devices 1 of the present invention are installed in an advertising box 2 . The advertisement box 2 includes a box body 21 , a screen 22 and a power supply 23 . The box body 21 includes a fixing bracket 212 . The strip light source lighting device 1 is fixed on the fixing bracket 212 . According to the application example, the power supply 23 is directly fixed on the strip member 11 of the strip-shaped light source lighting device 1 , but not limited thereto. The power supplies 23 are respectively electrically connected to the control circuit 14 of the strip light source lighting device 1 to provide power. The light source assembly 13 of the strip light source lighting device 1 emits light toward the screen 22 . An advertisement message is uploaded on the screen 22 . A uniform plane light source generated by the strip light source lighting device 1 is projected onto the screen 22, so that the advertisement information is displayed. The fixed position of the light source assembly 13 of the strip-shaped light source lighting device 1 is not limited to that shown in FIG. 3A , and can also be fixed in a staggered manner, as shown in FIG. 3B . In practical applications, the fixed distance of the light source components 13 should be determined according to product requirements, so as to produce the desired light source distribution.

Therefore, the strip-shaped light source device 1 of the present invention can replace the traditional fluorescent light source, and has the advantages of power saving and long life.

According to another application embodiment, several strip light source lighting devices 1 of the present invention can be connected in series to form an atmosphere light, and can be installed on a beam, a staircase or an embedded ceiling for decorative lighting . In addition, please refer to FIG. 3C . FIG. 3C is a cross-sectional view of the strip light source lighting device 1 installed in an embedded ceiling 3 of the present invention. Since each light source assembly 13 of the strip light source lighting device 1 of the present invention is equipped with a reflector 138, the light emitted from the light source assembly 13 is reflected by the reflector 138, so that the propagation direction of the light has a direction Sex, thus increasing the variability of decorative lighting.

To sum up, the distance between the light source components of the strip light source lighting device of the present invention can be adjusted according to the needs to obtain the required light source distribution, and the heat generated by each light source component during operation can pass through the strip The fins of the components are dissipated to lower the junction temperature, improve the stability of the light emission and prolong the service life. In addition, because the light emitting diodes can choose different colors, each light source component can emit light of different colors. Furthermore, if the light source assembly includes multiple light emitting diodes or composite light emitting diodes, the light source assembly can selectively emit multiple colors to make the lighting function of the strip light source lighting device of the present invention more extensive and more comprehensive. diverse.

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments, and those skilled in the art can also make various equivalent modifications or replacements without departing from the spirit of the present invention. , these equivalent modifications or replacements are all included within the scope defined by the claims of the present application.

Claims (11)

1. A strip light source lighting device, characterized in that it comprises: a strip-shaped member having a first surface and a second surface; a plurality of cooling fins disposed on the first surface; and Several light source components are detachably fixed on the second surface. 2. The strip light source lighting device as claimed in claim 1, wherein each light source module comprises at least one light emitting diode. 3. The strip light source lighting device according to claim 2, characterized in that: the light emitting diodes of each light source assembly can be any of the following: white LED, red LED, green LED, blue LED, yellow LED light LED and composite LED. 4. The strip light source lighting device according to claim 2, characterized in that: the light emitting diodes of each light source module are welded on a metal circuit board, and a lens is installed above the light emitting diodes. 5. The strip light source lighting device as claimed in claim 1, wherein each light source unit includes a cover for protecting the light source unit. 6. The strip light source lighting device according to claim 1, wherein the light source components are connected in series through a power line. 7. The strip light source lighting device according to claim 5, characterized in that: a reflector is installed above the upper cover of each light source unit, and the reflector can guide a light emitted from the light source unit to The opposite direction of the reflector. 8. The strip-shaped light source lighting device according to claim 1, characterized in that: the strip-shaped member has a thread groove, and the thread groove has a horizontal pattern, and each light source assembly is fixed on the strip with a bolt. shaped member on said second surface, and said bolts conform to said ribs. 9. The strip-shaped light source lighting device according to claim 1, wherein the strip-shaped member has a T-shaped slot, and each light source assembly is fixed on the strip-shaped member with a bolt and a nut. On the second surface, the nut is disposed in the T-shaped slot, and the nut fits into the bolt. 10. The strip-shaped light source lighting device according to claim 1, characterized in that several strip-shaped light source lighting devices can be installed side by side in an advertising light box, so as to provide a uniform backlight source on one side. 11. The strip-shaped light source lighting device according to claim 1, characterized in that several strip-shaped light source lighting devices can be installed in series on a beam, a staircase or an inner ceiling.

Images