TW201441527A - Lamp - Google Patents

Abstract

A light-emission module of the lamp includes strings of light sources and support members. Each string of light sources is disposed on a respective one of the support members. Each string of light sources includes multiple light sources, wherein M light sources are disposed on a first portion of the support member and N light sources are disposed on a second portion of the support member. The M light sources generally emit light toward the power connection module and the N light sources generally emit light away from the power connection module, M > N ≥ 1.

Description

Lamp

The invention relates to a lighting device.

The ENERGY STAR program is a voluntary initiative of the US Environmental Protection Agency to help businesses and individuals save energy and protect the global environment through excellent energy efficiency. The ENERGY STAR program defines specifications for the light intensity distribution of the bulb from which commercially available products are classified as Class II that meets this specification and does not meet this specification. Due to the nature of directional illuminance of light-emitting diodes (LEDs), in order to obtain a uniform light distribution, additional mechanisms are often required to change the direction of the emitted light. While a relatively wide light distribution can be achieved with some sort of light distribution mechanism, a common problem is that dark spots on the lampshade are caused by uneven light distribution, resulting in an unpleasant visual perception.

With the gradual popularization of LED lamps, more and more traditional lamps, such as incandescent bulbs, have been replaced by LED lamps in various applications. In any case, the demand for new LED luminaires is not only in line with the ENERGY STAR program requirements, but also maintains relatively high light efficiency, as well as improved visual effects on the lampshade.

According to an embodiment of the invention, the lamp may include a power connection module, a lighting module, and a driving circuit module. The power connection module can be used to receive power from a power source. The driving circuit module can be used to receive power from the power connection module to activate the lighting module. The light emitting module includes a plurality of light source strings and a plurality of support elements. Each source string can include a respective plurality of sources. Each of the light source strings of each of the light source strings may be disposed on a respective one of the support members such that the first light source strings of the light source strings are disposed on the first support members of the support members. The first supporting member may be configured to dispose the M light sources of the first light source string on the first portion of the first supporting member and the N light sources of the first light source string are disposed on the second portion of the first supporting member, M>N 1. The light-emitting axis of each of the M light sources of the first light source string is substantially in a direction toward the power connection module, and the light-emitting axis of each of the N light sources of the first light source string is substantially away from the power connection mode The direction of the group.

In at least some embodiments, an angle between a horizontal plane perpendicular to one axis of the luminaire and a surface of the first portion of the first support member is less than 90°, and the M light sources of the first source string are disposed at the first of the first support member On the surface of the part. In at least some embodiments, the angle is between about 42 and 65 degrees.

In at least some embodiments, an angle between a horizontal plane perpendicular to one axis of the luminaire and a surface of the second portion of the first support member is greater than 90°, and the N light sources of the first source string are disposed in the second of the first support member On the surface of the part. In at least some embodiments, the angle is between about 125 and 154 degrees.

In at least some embodiments, the plurality of light sources of the first source string comprise a plurality of light emitting diodes.

In at least some embodiments, the respective plurality of light sources of the first source string are electrically connected in parallel.

In at least some embodiments, the plurality of light source strings are electrically connected in series or in parallel.

In at least some embodiments, the first support element comprises a metal support element or a circuit board.

In at least some embodiments, the power connection module receives the alternating current, and the drive circuit module converts the alternating current to direct current for use by the plurality of light source strings.

In at least some embodiments, the light fixture further includes a light transmissive module that at least partially covers the light emitting module.

In at least some embodiments, the overall width of the lighting module is about one-half or less of the overall width of the light transmissive module.

In at least some embodiments, the luminaire further includes a heat dissipation module coupled to the illuminating module, such that at least a portion of the heat generated by the illuminating module is transmitted to the heat dissipation module by conduction.

In at least some embodiments, the driving circuit module is coupled between the power connection module and the light emitting module, and the heat dissipation module is coupled between the light emitting module and the driving circuit module.

In at least some embodiments, one of the light sources of the first source string closest to the heat dissipation module is spaced apart from the heat dissipation module by at least a predetermined distance.

In at least some embodiments, the support member surrounds the heat dissipation module and is in fact coupled to the heat dissipation module.

In at least some embodiments, the heat dissipation module utilizes a heat dissipation module and a drive power A gap between the road modules surrounds the drive circuit module.

In at least some embodiments, the heat dissipation module includes a plurality of airflow openings that facilitate airflow through the airflow openings and a gap between the heat dissipation module and the drive circuit module.

In at least some embodiments, the light fixture further includes a light transmissive module. The light transmission module is configured to at least partially cover the light emitting module and the heat dissipation module to expose the airflow opening of the heat dissipation module.

In at least some embodiments, the heat dissipation module includes a first end and a second end relative to the first end. The first end of the heat dissipation module can face the power connection module. The luminaire may further include a substrate coupled to the second end of the heat dissipation module.

In at least some embodiments, the luminaire further includes one or more light sources disposed on the substrate such that the illumination axes of the one or more light sources are substantially parallel to an axis of the luminaire.

In summary, the present disclosure provides a concept regarding a full-circumference luminaire. Some embodiments of an electro-optic device are described further below. This disclosure is not intended to limit the essential features of the subject matter of the patent application, nor is it intended to limit the scope of the invention.

100, 200‧‧‧ lamps

110, 210‧‧‧Power connection module

120, 220‧‧‧ drive circuit module

122‧‧‧Drive circuit board

124‧‧‧Shell

126‧‧‧上盖

128‧‧‧Electrical terminals

130, 230‧‧‧Lighting Module

132 ₁ -132 _p , 232 ₁ -232 _p ‧‧‧Light source string

134 ₁ ~ 134 _q , 234 ₁ ~ 234 _q , 280 ₁ ~ 280 _r ‧ ‧ ‧ light source

136 ₁ ~ 136 _p , 236 ₁ ~ 236 _p , 236 _i ‧ ‧ support components

138‧‧‧Substrate

140, 240‧‧‧ Thermal Module

145‧‧‧ bolt

150, 250‧‧‧Light transmission module

255‧‧‧Protrusions

257‧‧‧ screws

260‧‧‧Substrate

265‧‧‧rivets, screws or nuts and bolts

270‧‧‧Light cover

D ₁ , D ₂ ‧‧‧ diameter

F‧‧‧Airflow

K‧‧‧ Parts

O‧‧‧Air opening

P‧‧‧ water level

P1‧‧‧ first

P2‧‧‧ second

One axis of X‧‧‧ lamps

Y‧‧‧ distance

α, β, Ψ, φ‧‧‧ angle

The drawings provide a further understanding of the disclosure and are incorporated in and constitute a part of the disclosure. The drawings illustrate various embodiments of the present disclosure, and are described in conjunction with the description. In order to clearly illustrate the concepts of the disclosure, some groups Pieces may be shown in proportions that exceed the actual fulfillment size, and these illustrations do not need to be proportional.

1 is a perspective view of a light fixture in accordance with an embodiment of the present disclosure.

2 is an exploded view of the luminaire of FIG. 1.

3 is a perspective view of a lighting module of the luminaire of FIG. 1.

Figure 4 illustrates various angles with respect to the lighting module of Figure 3.

FIG. 5 is a schematic view showing the size and angle of the light emitting module of FIG.

FIG. 6 is a schematic view showing the dimensions of the luminaire of FIG. 1.

7 is an exploded view of a luminaire in accordance with another embodiment of the present disclosure.

Figure 8 is a perspective view of the assembly of the luminaire of Figure 7.

Figure 9 is a perspective view of the luminaire of Figure 7.

Figure 10 is a cross-sectional view of the luminaire of Figure 7.

Figure 11 is another cross-sectional view of the luminaire of Figure 7.

FIG. 12 is a schematic view showing an angle with respect to the light emitting module of FIG. 7.

Figure 13 is a partial cross-sectional view of the luminaire of Figure 7.

Figure 14 is a schematic diagram showing the flow of air for the luminaire of Figure 7 convectively cooled.

A luminaire in accordance with various embodiments of the present disclosure utilizes a novel and non-obvious illuminating module. When a luminaire is viewed from one side thereof, a dark area is apt to occur. According to the illuminating module of the present disclosure, two or more light source strings are arranged. The light source string may be composed of, for example, a plurality of light emitting diodes, and two or more supporting elements. . Each light source The strings are disposed on one of the support members, the light source of the plurality of light source strings is disposed on a first portion of the support member, and the light source of the relatively small number of light source strings is disposed on a second portion of the support member. The support member is provided with a plurality of bends in its structure such that when the second portion of the support member faces in one direction (eg, away from the lamp holder or the lamp connector), the first portion of the support member faces in a different direction (eg towards the lamp holder or the lamp connector). The lighting module allows the luminaire to produce sufficient intensity and excellent light distribution uniformity to achieve the desired visual effect.

The characteristics of some luminaires are listed below (but the disclosure is not limited to this):

1. A support structure comprising a plurality of metal support members disposed between the substrate and the plurality of light sources. The support structure is non-planar but has a three-dimensional structure with a predetermined bending angle.

2. The number of light sources that illuminate substantially away from the power connection module (e.g., upwards) is less than the number of light sources that are generally illuminating toward the power connection module (e.g., facing downward). At the same time, the light source is spaced apart from the heat dissipation module by at least a predetermined distance to reduce the light blocked by the heat dissipation module.

3. Multiple light sources are placed into two or more light source strings (eg, eight light source strings) to reduce dark areas emerging from the light cover.

4. The distance between the support structure of the light-emitting module and the light-transmitting module (such as a lampshade or lens) is maintained at not less than a minimum distance.

1 through 6 illustrate various views of a luminaire 100 in accordance with an embodiment of the present disclosure. The following description is an embodiment corresponding to FIGS. 1 to 6.

The luminaire 100 includes a power connection module 110, a driving circuit module 120, and a lighting module 130. The power connection module 110 is configured to receive power from a power source. For example, the power connection module 110 can be housed in a socket of the lamp holder to receive the communication. Electricity. As shown in Figures 1, 2 and 6, in at least some embodiments, the power connection module 110 is a threaded cap that is common on incandescent light bulbs. The driving circuit module 120 is configured to receive power from the power connection module 110 to activate the lighting module 130. For example, the driving circuit module 120 can receive the alternating current from the power connection module 110 and convert it into direct current for use by the light emitting module 130.

As shown in FIG. 2, in at least some embodiments, the driver circuit module 120 includes a driver circuit board 122, a housing 124, an upper cover 126, and an electrical terminal 128. The drive circuit board 122 includes an alternating current to direct current (not shown) circuit. The housing 124 has an accommodating area for accommodating the driving circuit board 122 therein to electrically insulate the driving circuit board 122 from external contact and environmental substances. The housing 124 can utilize a plastic such as polycarbonate (PC), acrylonitrile-polystyrene-polystyrene (ABS), polybutylene terephthalate (PBT) or polycarbonate. A combination of an ester and acrylonitrile-butadiene-styrene. The upper cover 126, together with the housing 124, encloses the drive circuit board 122 in the housing 124. The upper cover 126 can be made of a plastic such as polycarbonate, acrylonitrile butadiene styrene, polybutylene terephthalate, or a combination of polycarbonate and acrylonitrile butadiene styrene. . In addition, the upper cover 126 can be made of a metal such as aluminum or copper. Rivets, screws or nuts and bolts 145 can be used to secure the upper cover 126 to the lighting module 130 or the heat dissipation module 140 described below. The electrical terminal 128 is electrically connected to the driving circuit board 122 through an electrical connection module 110 to an external power source, and can be made of a conductive material such as metal.

The light-emitting module 130 includes at least two or more light source strings 132 ₁ - 132 _p and at least two and above support members 136 ₁ - 136 _p , where p is a positive integer greater than or equal to 2. Each of the light source strings 132 ₁ - 132 _p includes a plurality of light sources 134 ₁ - 134 _q , where q is a positive integer greater than or equal to 2. Each of the light source strings 132 ₁ to 132 _{p is} disposed on each of the corresponding support members 136 ₁ to 136 _p . For example, the first light source strings 132 _{1 of} the two or more light source strings 132 ₁ to 132 _p are disposed in two The above support members 136 ₁ to 136 _{p are} on the first support member 136 ₁ . The first support member 136 _{1 is} configured to dispose the M light sources of the first light source string 132 ₁ on the first portion P1 of the first support member 136 ₁ and the N light sources of the first light source string 132 ₁ are disposed on the first support member 136 ₁ on the second part P2, where M>N 1. In the example shown in FIGS. 1 to 6, three light sources 134 ₁ to 134 _{3 are} disposed on the first portion P1 of the first support member 136 ₁ , and a light source 134 _{q is} disposed on the first support member 136 ₁ . Two parts on P2. Although these examples refer to the first source string 132 ₁ and/or the first support member 136 ₁ , those of ordinary skill in the art will recognize that the first source string 132 ₁ and/or the first support member 136 ₁ are described herein. Examples may also be applied to some or all of the source strings 132 ₁ - 132 _p and/or support members 136 ₁ - 136 _p .

In at least some embodiments, the plurality of light sources of the first source string 132 _{1 are} , for example, a plurality of light emitting diodes. In at least some embodiments, all of the light sources 134 ₁ - 134 _{q are,} for example, a plurality of light emitting diodes. These light emitting diodes may have the same or different colors. These light emitting diodes can be wafers or packages. The light emitting diodes can include at least one light emitting diode wafer and at least one phosphor. The at least one light emitting diode chip may have a combination of different color light emitting diode chips, for example, may have a blue light emitting diode chip, a combination of a blue light emitting diode chip and a red light emitting diode chip, or a blue light emitting A combination of a diode chip, a green light emitting diode chip, and a red light emitting diode chip, but the disclosure is not limited thereto. The at least one phosphor may include a yellow phosphor, a combination of a yellow phosphor and a red phosphor, or a combination of a yellow phosphor, a red phosphor, and a green phosphor, but the disclosure is not limited thereto. The yellow phosphor can be a garnet phosphor. The red phosphor can be a nitride phosphor.

In at least some embodiments, the first support member 136 ₁ is a metal support member such as aluminum or copper, although the disclosure is not limited thereto. In at least some embodiments, the two or more support members 136 ₁ - 136 _p are made of metal. In an embodiment, the support members 136 ₁ - 136 _p are made of a conductive material.

In at least some embodiments, the lighting module 130 also includes a substrate 138. As shown in FIGS. 1-6, in at least some embodiments, the support members 136 ₁ - 136 _p are erected, attached, fastened, or otherwise coupled to the substrate 138. The substrate 138 not only provides mechanical support for the support members 136 ₁ - 136 _p but also allows heat to be transferred away from the light sources 134 ₁ - 134 _q by conduction. Additionally, substrate 138 can be a circuit board through which power is supplied from drive circuit board 122 to light sources 134 ₁ - 134 _q .

In at least some embodiments, the light sources of the first source string 132 ₁ are electrically connected in parallel. Moreover, in at least some embodiments, each of the support members 136 ₁ - 136 _p includes two components K to electrically couple each of the respective light source strings to the two components K of the support member, the support members One of the components K is regarded as a positive electrode, and the other of the two components K of the supporting member serves as a negative electrode to illuminate a plurality of light sources of the respective light source strings. Additionally, in at least some embodiments, more than two light source strings 132 ₁ - 132 _p are electrically connected in series. For example, the positive pole of one support element can be electrically coupled to the negative pole of the other support element, and vice versa. Therefore, only two electrical connecting portions (one positive electrode and one negative electrode) are required to connect the power from the driving circuit board 122 to the light emitting module 130. More specifically, in this configuration, the positive electrode of the support member at one end of the plurality of light source strings 132 ₁ - 132 _{p is} electrically coupled to the positive electrode on the substrate 138 (which is electrically connected to the driving circuit board 122) The positive electrode is electrically coupled to the negative electrode on the substrate 138 (which is electrically connected to the negative electrode of the driving circuit board 122) at the negative electrode of the supporting member at the other end of the plurality of light source strings 132 ₁ to 132 _p . This helps to reduce the number of electrical connectors required to illuminate the light source 134 _1-q .

Of course, the two or more light source strings 132 ₁ to 132 _p are not necessarily electrically connected in series. Further, two or more light sources may string 132 ₁ to 132 portion of the source string _p is electrically connected in series, the other two or more part string light source string 132 ₁ to 132 _p are electrically connected in series together to form For example, two groups of electrically connected light source strings 132 ₁ to 132 _p , but the disclosure is not limited thereto. The electrically connected series of light source strings 132 ₁ - 132 _{p of the} individual groups may each be electrically coupled to the substrate 138 to receive power from the drive circuit module 120.

As shown in FIG. 1 to FIG. 6 , in at least some embodiments, the light emitting axis of each of the M light sources 134 of the first light source string 132 ₁ is substantially in a direction toward the power connection module 110, and the first The light-emitting axis of each of the N light sources 134 of the light source string 132 ₁ is substantially in a direction away from the power connection module 110. More particularly, as shown in Figures 4 and 6, in at least some embodiments, perpendicular to an axis X of the luminaire (shown in Figure 6 of the horizontal plane P (shown in Figure 6) and the first support member 136 ₁ The angle α between the surfaces of a portion P1 is less than 90°, and the M light sources 134 ₁ to 134 _{3 of the} first light source string 132 ₁ are disposed on the surface of the first portion P1 of the first support member 136 ₁ . The first light source arrangement of the M light sources 134 ₁ to 134 _{3 of} 132 ₁ has an angle of less than 90° with respect to the horizontal plane P. One axis X of the luminaire 100 is parallel to the surface of the substrate 138 on which the plurality of support members 136 _1-p are disposed. A normal. In one embodiment, the plurality of support members 136 _1-p are symmetrical about an axis X of the luminaire 100. In at least some embodiments, the angle α can be between about 42° and 62°. In some embodiments, the angle β between the horizontal plane P and the surface of the second portion of the first support member 136 ₁ is greater than 90°, and the N light sources 134 _{q of the} first source string 132 ₁ are disposed on the first support member 136 two upper surface P2. the angle between the second light source arranged in the horizontal plane P of the first string of N light sources 132 ₁ 134 _q is set greater than 90 °. in Less some embodiments, the angle β can be between about 134 ° and 154 °. Each support element 136 ₁ ~ 136 _p may be a structure having a plurality of bent at, for example, comprise approximately W-shaped, S-shaped Or an N-shaped structure having a plurality of bends. In an embodiment, the angle formed between the first portion P1 and the second portion P2 of the first support member 136 ₁ is greater than 0° but less than 180°. It is worth noting that the first light source arrangement and the second light source arrangement can be achieved using a platform mechanism and a flexible circuit board instead of the support members 136 ₁ - 136 _p .

In at least some embodiments, the luminaire 100 further includes a light transmissive module 150 at least partially covering the light emitting module 130. For example, the light transmissive module 150 can be a lamp cover or a lens. The light transmissive module 150 can provide a light diffusing effect and can be produced, for example, from a plastic such as polycarbonate (PC) or polymethyl methacrylate (PMMA). When the plurality of light sources 134 ₁ to 134 _q are a plurality of light emitting diodes, a first angle formed between the first optical axis of the M light emitting diodes and an axis X of the light fixture 100 is less than 90°, and is formed at A second angle between the second optical axis of the N light emitting diodes and an axis X of the luminaire 100 is greater than 90°.

As shown in FIG. 6, in at least some embodiments, the overall width D ₁ of the light-emitting module 130 in one direction is about half or less of an overall width D ₂ of the light-transmitting module 150 in the direction. In other words, the overall width D _{1 of the} light-emitting module 130 is smaller (for example, half or less) than the overall width D _{2 of the} light-transmitting module 150 to avoid forming a dark region on the light-transmitting module 150. When the support members 136 ₁ - 136 _p are made in a sheet metal bracket, there are relatively few restrictions on the curved support members during manufacture. Therefore, the overall size of the light-emitting module 130 can be effectively reduced to increase the light diffusion distance between the light sources 134 ₁ - 134 _q and the light-transmitting module 150, thereby optimizing the uniformity of light projection on the light-transmitting module 150. . In other words, the overall size of the light emitting module 130 is minimized to maximize the minimum distance between the light emitting module 130 and the light transmitting module 150.

In at least some embodiments, the luminaire 100 further includes a heat dissipation module 140 coupled to the illuminating module 130 to conduct at least a portion of the heat generated by the illuminating module 130 to the heat dissipation module 140. The heat dissipation module 140 can be a heat sink made of metal such as copper, aluminum or ceramic.

As shown in FIG. 1 , FIG. 2 and FIG. 6 , in at least some embodiments, the driving circuit module 120 is coupled between the power connection module 110 and the light emitting module 130 , and the heat dissipation module 140 is coupled to the light emitting module. The group 130 is between the drive circuit module 120.

As shown in FIG. 5, in at least some embodiments, at least _one of the plurality of light sources of the first light source string 132 ₁ that is closest to the heat dissipation module 140 is separated from the heat dissipation module 140 by at least a predetermined distance y. For example, the distance y can be 5 to 15 mm. This ensures that the light emitted from the closest source (the one closest to the substrate 138 and the heat sink 140 as shown in Figure 5) has a minimum divergence angle θ from the axis of illumination of the respective source, which is not Less than a predetermined angle. In at least some embodiments, the minimum divergence angle θ is no less than 15°. This reduces the blocking of light in the direction toward the power connection module 110 and is in compliance with Energy Star regulations.

7 through 14 illustrate various views of a luminaire 200 in accordance with an embodiment of the present disclosure. For the sake of brevity, the features of the luminaire 200 similar to the features of the luminaire 100 will not be repeated.

The luminaire 200 includes a power connection module 210, a driving circuit module 220, a lighting module 230, and a heat dissipation module 240. The power connection module 210 is configured to receive power from a power source. For example, the power connection module 210 can be housed in a socket of the socket to receive alternating current. As shown in FIGS. 7-11 and 13-14, in at least some embodiments, the power connection module 210 is a threaded cap that is commonly found on incandescent light bulbs. The driving circuit module 220 is configured to receive power from the power connection module 210 to activate the lighting module 230. For example, the driving circuit module 220 can receive the alternating current from the power connection module 210 and convert it into direct current for use by the light emitting module 230.

The light module 230 includes two or more light source strings 232 ₁ - 232 _p and two or more support elements 236 ₁ - 236 _p , where p is a positive integer greater than or equal to 2. Each light source string 232 ₁ ~ 232 _p includes a plurality of light sources 234 ₁ ~ 234 _q , where q is a positive integer greater than two. Each of the light source strings 232 ₁ to 232 _{p is} disposed on a corresponding one of the support members 236 ₁ to 236 _p , that is, one of the two or more light source strings 232 ₁ to 232 _p is disposed on the first light source string 232 ₁ One of the two or more support members 236 ₁ - 236 _p is on a first support member 236 ₁ . A first support member ₂₃₆₁ for causing the first light source 232 ₁ M string of light sources disposed on the first support member 236 on a first portion P1 of the first light source ₁ and the string 232 ₁ N light sources disposed on the first On the second portion P2 of the support member 236 ₁ , where M>N 1. In the example shown in FIGS. 7 to 14, four to six light sources are disposed on the first portion P1 of each of the support members 236 ₁ to 236 _p and two to four light sources are disposed on each of the support members 236 ₁ to 236. _On the second part P2 of _p . While these examples are only means that the first light source string ₂₃₂₁ and / or the first support member _2361, but the present art having ordinary knowledge this may be its ₂₃₂₁ and / or the first support element string description of the first light source ₂₃₆₁ Examples may also be applied to some or all of the source strings 232 ₁ - 232 _p and/or support elements 236 ₁ - 236 _p .

In at least some embodiments, the light emitting axis of each of the M light sources of the first light source string 232 ₁ is substantially in a direction toward the power connection module 210, and each of the N light sources of the first light source string 232 ₁ The light emitting axis of a light source is substantially in a direction away from the power connection module 210.

In at least some embodiments, the heat dissipation module 240 is coupled to the light-emitting module 230, and the plurality of support members 236 ₁ - 236 _p surround the heat dissipation module 240 and are actually coupled to the heat dissipation module 240 to promote heat transmission. Conduction is transmitted from the light sources 234 ₁ - 234 _q to the heat dissipation module 240.

As shown in FIG. 12, in at least some embodiments, the angle Ψ between the horizontal plane P perpendicular to one axis X of the luminaire and the surface of the first portion P1 of the first support member may be less than 90°, the M of the first source string The light sources are disposed on the surface of the first portion P1 of the first support member. In at least some embodiments, the angle Ψ can be between about 45° and 65°. In at least some embodiments, the angle φ between the horizontal plane P perpendicular to one axis X of the luminaire and the surface of the second portion of the first support member may be greater than 90°, and the N light sources of the first source string are disposed on the first support On the surface of the second portion P2 of the element. In at least some embodiments, the angle φ can be between about 125° and 145°. Each of the support members 236 ₁ to 236 _p may be a structure having a plurality of bends, for example, a structure having a plurality of bends such as an approximately W-shape, an S-shape, or an N-shape.

In at least some embodiments, one of the plurality of light sources of the at least one light source string that is closest to the power connection module 210 (as shown in FIG. 8 , for example, disposed near the lower end of the support member 236 _i and closest to the power connection) One or more light sources of the module 210 are spaced apart from the power connection module 210 by at least a predetermined distance. As with the luminaire 100 described above, the luminaire 200 is also designed to ensure that the light emitted from the closest one of the at least one source string (e.g., the one closest to the thermal module 240) has a minimum amount of illumination from the respective source. The divergence angle is not less than a predetermined angle. In at least some embodiments, the minimum divergence angle is no less than 15°.

In at least some embodiments, the light source string 232 ₁ ~ 232 _p some or all of the light sources 234 ₁ ~ 234 _q is a plurality of light emitting diodes.

In at least some embodiments, the respective plurality of light sources of each of the light source strings 232 ₁ - 232 _p are electrically coupled to respective support elements 236 ₁ - 236 _p . In at least some embodiments, at least some of the light source strings 232 ₁ - 232 _{p are} electrically connected in series. For example, the light source strings 232 ₁ ~ 232 _{p are} divided into two groups: when the second group light source strings 232 ₁ ~ 232 _{p are} connected in series, the first group light source strings 232 ₁ - 232 _{p are} connected in series.

In at least some embodiments, the support members 236 ₁ - 236 _p are circuit substrates or circuit boards that include power to the light sources 234 ₁ - 234 _q .

As shown in FIG. 12, in at least some embodiments, the heat dissipation module 240 is spaced apart from the drive circuit module 220 by a gap and surrounds the drive circuit module 220.

As shown in FIG. 14 , in at least some embodiments, the heat dissipation module 240 includes a plurality of openings O that allow the airflow F to easily pass through the opening O and the gap between the heat dissipation module 240 and the drive circuit module 220.

In at least some embodiments, the luminaire 200 further includes a light transmitting module 250 for at least partially covering the light emitting module 230 and the heat dissipation module 240 to expose the opening O of the heat dissipation module 240. The light transmissive module 250 can be made of plastic, glass or any suitable material.

As shown in FIG. 13 , the inner surface of the light transmissive module 250 (such as the surface facing the light emitting module 230 and the heat dissipation module 240 ) includes more than one protrusion 255 . When the light transmissive module 250 is mounted to the luminaire 200, each protrusion of one or more protrusions 255 is assembled and positioned to press a corresponding one of the support members 236 ₁ - 236 _p . As more than one protrusion 255 presses the respective support element 236 _i, 1 i p. Each of the supported support members 236 ₁ - 236 _p is actually in contact with the heat dissipation module 240 due to the pressure to promote better transfer of heat to the heat dissipation module 240 by conduction. The light transmissive module 250 can be assembled, attached, coupled, or otherwise secured to the luminaire 200 using screws 257, such as screws affixed to the heat dissipation module 240 as shown in FIG.

In at least some embodiments, the heat dissipation module 240 includes a first end and a second end relative to the first end. The first end of the heat dissipation module may be toward the power connection module 210. The luminaire 200 further includes a substrate 260 coupled to the second end of the heat dissipation module 240. The substrate 260 can be mounted and attached by using rivets, screws or nuts and bolts 265. Fastened or otherwise coupled to the heat dissipation module 240. In at least some embodiments, the substrate 260 can be made of FR4 glass-enforced epoxy. In addition, the substrate 260 can also be made of plastic, ceramic or metal.

In at least some embodiments, the luminaire 200 further includes one or more light sources 280 _{1 -} 280 _r disposed on the substrate 260 such that more than one of the light sources 280 _{1 -} 280 _r emit light substantially parallel to an axis of the luminaire 200 One axis of X is in a direction away from the power connection module 210. For example, as shown in FIG. 8, more than one light source 280 _{1 -} 280 _{r is} disposed on the substrate 260 to emit upward light. The substrate 260 can be electrically coupled to the plurality of support members 236 ₁ - 236 _p such that each of the light source strings 232 ₁ - 232 _p can be electrically connected in series with the respective light sources of the one or more light sources 280 _{1 -} 280 _r . The first light source arrangement of the M light sources of the first light source string 232 ₁ to 232 _p is arranged at an angle of less than 90° with the horizontal plane P. One axis X of the luminaire 200 is parallel to a normal to the surface of the substrate 260 on which the light sources 280 _{1 -} 280 _r are disposed. In one embodiment, the plurality of support members 236 ₁ - 236 _p are symmetrical about an axis X of the luminaire 200. The angle between the second light source arrangement of the N light source configurations of the first light source string 232 ₁ and the horizontal plane P is greater than 90°. In one embodiment, the angle formed between the first portion and the second portion of the at least one support member 236 ₁ -236 _p is greater than 0° but less than 180°. When the plurality of light sources 234 ₁ to 234 _q are a plurality of light emitting diodes, a first angle formed between the first optical axis of the M light emitting diodes and an axis X of the luminaire 200 is less than 90°, and is formed at A second angle between the second optical axis of the N light emitting diodes and an axis X of the luminaire 200 is greater than 90°. It is worth noting that the first light source arrangement and the second light source arrangement can be achieved using a platform mechanism and a flexible circuit board instead of the support members 236 ₁ - 236 _p .

In at least some embodiments, the luminaire 200 can further include a light transmissive cover 270 or lens that covers more than one of the light sources 280 _{1 -} 280 _r . For example, the light transmissive cover 270 can be at the end of the luminaire 200 relative to the end of the luminaire 200 where the power connection module 210 is located. The light transmissive cover 270 can be made of plastic, glass or other suitable material.

Embodiments of the luminaire that produces full-circumference light in accordance with the present disclosure are not limited to the illustrative content disclosed herein. The actual design and implementation of a lighting fixture or power supply module in accordance with the present disclosure may vary from the various embodiments described herein. Variations and modifications can be made by those skilled in the art based on the disclosed embodiments, and such changes and modifications are still within the scope of the disclosure. Therefore, the scope of protection of this patent is subject to the definition of the scope of the patent application.

While the present invention has been described above by way of a preferred embodiment, it is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application. The word "or" as used in this application is intended to mean an inclusive "or" rather than an exclusive "or". That is, unless specifically stated otherwise or clear from the context, "X employs A or B" refers to any natural inclusion of an arrangement. That is, if X uses A; X uses B; or X uses both A and B, then "X uses A or B" satisfies any of the foregoing examples. In addition, the use of "a" or "an" or "an"

For the purposes of the following disclosure and claims, the words "coupled" and "connected" can be used to describe the various elements. As various components Connections can be direct or indirect.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100‧‧‧Lights

Claims (19)

A luminaire includes: a power connection module for receiving power from a power source; a lighting module comprising: a plurality of light source strings, each light source string having a plurality of respective light sources; and a plurality of support elements, Each of the light source strings is disposed on a respective one of the support elements such that a first light source string of the light source strings is disposed on a first support component of the support elements, the first The support member is configured to dispose the M light sources of the first light source string on a first portion of the first support member and the N light sources of the first light source string are disposed on a second portion of the first support member , M>N 1. and an illumination axis of each of the M light sources of the first source string is substantially in a direction toward the power connection module, and each of the N light sources of the first source string An illumination axis of the light source is substantially in a direction away from the power connection module; and a driving circuit module is configured to receive power from the power connection module to drive the illumination module. The luminaire of claim 1, wherein an angle between a horizontal plane perpendicular to an axis of the luminaire and a surface of the first portion of the first support member is less than 90°, the first source string The M light sources are disposed on the surface of the first portion of the first support member. The luminaire of claim 2, wherein the angle is between about 42° and 65°. The luminaire of claim 1, wherein an angle between a horizontal plane perpendicular to an axis of the luminaire and a surface of the second portion of the first support member is greater than 90°, the first light source The N light sources of the string are disposed on the surface of the second portion of the first support member. The luminaire of claim 4, wherein the angle is between about 125° and 154°. The luminaire of claim 1, wherein the light sources of the first light source string comprise a plurality of light emitting diodes. The luminaire of claim 1, wherein the respective light sources of the first source string are electrically connected in parallel or in series. The luminaire of claim 1, wherein the first support member comprises a metal support member or a circuit board. The luminaire of claim 1, further comprising: a light transmissive module at least partially covering the illuminating module. The luminaire of claim 9, wherein an overall width of the illuminating module is about one-half or less of an overall width of the light-transmitting module. The luminaire of claim 1, further comprising: a heat dissipation module coupled to the illumination module, so that at least a portion of the heat generated by the illumination module is transmitted to the heat dissipation module. The luminaire of claim 11, wherein the driving circuit module The group is coupled between the power connection module and the light emitting module, and the heat dissipation module is coupled between the light emitting module and the driving circuit module. The luminaire of claim 11, wherein a light source of the first light source string closest to the heat dissipation module is spaced apart from the heat dissipation module by at least a predetermined distance. The luminaire of claim 11, wherein the support members surround the heat dissipation module and are actually coupled to the heat dissipation module. The luminaire of claim 11, wherein the heat dissipation module surrounds the driving circuit module by using a gap between the heat dissipation module and the driving circuit module. The luminaire of claim 15, wherein the heat dissipation module comprises a plurality of openings, the openings facilitating airflow through the openings and the gap between the heat dissipation module and the drive circuit module. The luminaire of claim 16 further comprising: a light transmissive module for at least partially covering the illuminating module and the heat dissipating module to expose the airflow openings of the heat dissipating module. The luminaire of claim 11, wherein the heat dissipation module includes a first end and a second end opposite to the first end, the first end of the heat dissipation module is facing the power connection module And the luminaire further includes a substrate coupled to the second end of the heat dissipation module. The luminaire of claim 18, further comprising: one or more light sources disposed on the substrate such that an illumination axis of the one or more light sources is substantially parallel to an axis of the luminaire.