TW202132723A - Lighting apparatus - Google Patents

Abstract

A lighting apparatus includes a lamp structure and a mounting portion. The lamp structure includes a light source module. The mounting portion is directly connected to one surface of the light source module which is exposed.

Description

Lighting device

The present invention relates to a lighting device, and more particularly to a lighting device that can be manufactured at low cost and is thinner and lighter.

Some relatively large lighting devices (such as street lights) generate high heat during operation. If the heat cannot be removed, it will easily affect the luminous effect and even cause damage to the lamps. A common method is to transfer the heat source to the outside through heat conduction through the metal shell of the lamp, and then dissipate heat through air convection; if the contact surface between the metal shell and the heat source is uneven, it will affect the heat conduction effect, and it must be installed separately Thermally conductive components (such as thermally conductive patches or thermal paste) are used to improve the heat dissipation effect. However, this will cause an increase in manufacturing costs and man-hours, which is not cost-effective.

The present invention relates to a lighting device. The light source module is directly connected with the mounting part, which can provide the most direct heat dissipation effect and reduce the manufacturing cost at the same time.

According to one aspect of the present invention, a lighting device is provided. The lighting device includes a lamp structure and an installation part. The lamp structure includes a light source module. The mounting part is directly connected to a surface of the light source module, and this surface is exposed to the external environment.

In order to have a better understanding of the above and other aspects of the present invention, the following specific examples are given in conjunction with the accompanying drawings to describe in detail as follows:

Hereinafter, a plurality of embodiments of the present invention will be disclosed in drawings. For clear description, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is to say, in some embodiments of the present invention, these practical details are unnecessary. In addition, unless otherwise indicated, the same component symbols in different drawings can be regarded as corresponding components. It should be understood that when an element is referred to as being "directly connected to" another element, it means that the two elements have a physical relationship of direct contact, that is, there is no intermediate element between the two elements.

Please refer to FIG. 1, which shows a perspective view of a lighting device 100 according to an embodiment of the present invention. The lighting device 100 includes a lamp structure 110 and a mounting part 120. The lamp structure 110 is used to emit an illuminating light source, and it is combined with the mounting part 120 with each other. The mounting part 120 can be used to further connect other elements of the lighting device 100. For example, when the lighting device 100 is used as a street lamp, the lighting device 100 may further include a light pole 130, and the mounting portion 120 may be connected to the light pole 130, for example, through the first fastening element 140 to fix the mounting portion 120 to the light. On the rod 130. The first fastening element 140 is, for example, a screw, but not limited to this.

Please refer to FIG. 2, which shows an exploded view of the lighting device 100 of FIG. 1. The installation part 120 includes a body 121, a cover 122 and a connecting piece 123. The main body 121 has a through hole 121H penetrating through both sides, and the light pole 130 can be inserted into the through hole 121H from one end of the main body 121. When the mounting portion 120 is fixed to the light pole 130 by the first fastening element 140, the cover 122 can be disposed on the other end of the main body 121 by the connecting member 123 to close the other end of the through hole 121H of the main body 121 and protect Pass through the line set in the light pole 130.

In the present invention, the lamp structure 110 includes a light source module 111, and the mounting portion 120 is directly connected to a surface of the light source module 111. That is to say, the lamp structure 110 provided by the present invention can further omit the arrangement of the lamp housing, allowing the light source module 111 as the main heat source to be directly connected to the mounting part 120. This can solve the problem of the traditional lamp housing and the light source. The problem of poor heat dissipation between modules.

In detail, the light source module 111 may include a circuit board 112 and at least one light emitting unit 113. The light emitting unit 113 is, for example, a light emitting diode, which can be disposed on the circuit board 112, and the light source module 111 is directly connected to the mounting portion 120 via the circuit board 112. In other embodiments, the light-emitting unit 113 may further include secondary optical elements to meet various requirements for actual lighting.

For example, the material made of the circuit board 112 can generally be metal or metal alloy, such as an aluminum substrate (Metal Core PCB, MCPCB), which is a metal-based copper clad laminate with good thermal conductivity, electrical insulation properties, and mechanical strength. High, good processing performance and other characteristics. In one embodiment, the thickness of the circuit board 112 may be greater than 5 mm, for example, 5-10 mm. The present invention does not impose a limitation on this. The thickness of the circuit board 112 may be determined by the overall area of the circuit board 112. Therefore, the circuit board 112 not only serves as a heat transfer medium, but also has the purpose of carrying the lamp structure 110.

The circuit board 112 includes a first surface 112 a and a second surface 112 b opposite to each other. The light emitting unit 113 is disposed on the second surface 112 b of the circuit board 112, and the mounting portion 120 is directly connected to the first surface 112 a of the circuit board 112. For example, the second fastening element 150 can be used to fix the mounting portion 120 on the first surface 112 a of the circuit board 112. The second fastening element 150 is, for example, a screw, but not limited to this.

In the present invention, the surface directly connected to the light source module 111 and the mounting portion 120 is exposed. For example, in this embodiment, on one side of the first surface 112a of the circuit board 112, other parts except the part connected with the mounting portion 120 can be directly exposed to the external environment, increasing the connection with the external environment (such as external Air) the area in direct contact. In this way, the heat generated by the light source module 111 can be dissipated by convection on the first surface 112a of the circuit board 112, and the most direct heat dissipation effect can be achieved without additional heat conducting elements.

On the other hand, in this embodiment, a lampshade 114 is provided on one side of the second surface 112b of the circuit board 112. The lampshade 114 covers the light-emitting unit 113 on the second surface 112b of the circuit board 112, and has the function of being able to transmit light and being waterproof. In one embodiment, the lampshade 114 can be fixed to the second surface 112b of the circuit board 112 through a locking method, but the invention is not limited to this. In another embodiment, the lampshade 114 can be fixed to the second surface 112b of the circuit board 112 by bonding; or, in other embodiments, the lampshade 114 and the light source module 111 can be formed as a single module in a modular manner. The component structure, for example, injection molding, that is, the light source module 111 and the optical plastic used as the lamp cover 114 are combined into one body by injection molding, so as to eliminate the need for screw locking. Moreover, a glue can be filled between the lampshade 114 and the light source module 111 to further enhance the waterproof effect.

In the above embodiment, the first surface 112a of the circuit board 112 can be directly exposed, and the heat source can be directly dissipated by convection. Therefore, the temperature in the lampshade 114 can be reduced, thereby improving product reliability and prolonging product life.

Please refer to FIG. 3, which is a perspective view of a lighting device 200 according to another embodiment of the present invention. The main difference between the illuminating device 200 and the illuminating device 100 provided in the embodiment in FIG. 1 is the lamp structure 210, and the rest of the same or similarities will not be repeated.

In this embodiment, the lamp structure 210 includes a waterproof membrane layer 214 in addition to the light source module 111. The waterproof film layer 214 is coated on the second surface 112b of the circuit board 112 and the light-emitting unit 113, for example, by spraying, dipping, or coating. In other embodiments, the waterproof film layer 214 may further cover other surfaces of the light source module 111. Through the provision of the waterproof membrane layer 214, the lamp cover 114 can be omitted, and therefore the screw attachment can be omitted, and the thickness of the lamp structure 210 can be greatly reduced, so that the heat conduction distance can be further reduced, and the heat dissipation efficiency can be effectively improved.

In summary, in the lighting device provided by the present invention, the mounting portion is directly connected to a surface of the light source module, and this surface is exposed to the external environment. This structural design can not only reduce the number of components, but also provide the most direct heat radiation. At the same time, the lighting device provided by the present invention can omit the arrangement of the lamp housing and the heat-conducting element in the traditional lamp structure, and does not require additional processing such as leveling, thereby reducing the manufacturing cost.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention belongs can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to those defined by the attached patent application scope.

100,200: lighting installation 110,210: Lamp structure 111: light source module 112: circuit board 112a: first surface 112b: second surface 113: light-emitting unit 114: Lampshade 120: Installation Department 121: body 121H: Piercing 122: cover 123: connector 130: light pole 140: The first fastening element 150: second fastening element 214: Waterproof membrane layer

Figure 1 is a perspective view of a lighting device according to an embodiment of the invention. Fig. 2 shows an exploded view of the lighting device of Fig. 1. Figure 3 is a perspective view of a lighting device according to another embodiment of the invention.

100: lighting device

110: Lamp structure

111: light source module

112: circuit board

112a: first surface

112b: second surface

113: light-emitting unit

114: Lampshade

120: Installation Department

121: body

121H: Piercing

122: cover

123: connector

130: light pole

140: The first fastening element

150: second fastening element

Claims (10)

A lighting device includes: A lamp structure including a light source module; and A mounting part is directly connected to a surface of the light source module, and the surface is exposed to the external environment. The lighting device described in item 1 of the scope of patent application further includes a light pole, wherein the mounting part is connected with the light pole. The lighting device described in item 2 of the scope of patent application further includes a first fastening element configured to fix the mounting portion on the light pole. For the lighting device described in item 1 of the scope of patent application, the light source module includes: A circuit board; and At least one light-emitting unit is arranged on the circuit board, wherein the light source module is directly connected to the mounting portion via the circuit board. The lighting device according to claim 4, wherein the circuit board includes a first surface and a second surface opposite to each other, the at least one light-emitting unit is disposed on the second surface of the circuit board, and the circuit board The first surface is the surface of the light source module. The lighting device described in item 5 of the scope of patent application further includes a second fastening element configured to fix the mounting portion on the first surface of the circuit board. According to the lighting device described in item 5 of the scope of patent application, the lamp structure further includes a lampshade, and the lampshade is arranged on the second surface of the circuit board to cover the at least one light-emitting unit. The lighting device described in item 7 of the scope of patent application, wherein the lampshade is fixed to the second surface of the circuit board by a locking method. In the lighting device described in item 7 of the scope of patent application, the lampshade and the light source module are formed as a single piece structure in a modular manner. According to the lighting device described in item 5 of the scope of patent application, the lamp structure further includes a waterproof film layer covering the second surface of the circuit board and the at least one light-emitting unit.

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