LED lighting fixtures

Abstract

The present application discloses an LED lighting device, which includes a base (1), a light source section (2) provided on the base (1), a power supply section (3) electrically connected to the light source section (2), and a lamp cover (4) provided as a cover on the outside of the light source section (2) and the power supply section (3), wherein the base (1) includes a light source support section (11) having a first surface (111) and a second surface (112), and the light source section (2) includes a first light source unit (21) and a second light source unit (22) provided on the first surface (111) and the second surface (112) of the light source support section (11), respectively, and the first light source unit (21) and the second light source unit (22) emit light in different directions.

Description

[Technical field]

[0001] This application relates to lighting fixtures, and in particular to LED lighting fixtures. [Background technology]

[0002] LED lighting fixtures are widely used in various places due to their easy installation and maintenance, power saving, high brightness and small volume. The core component, the light-emitting diode (LED), is a new generation solid-state energy that has the advantages of long life, high efficiency, energy saving and environmental protection.

[0003] Conventional LED lighting fixtures have the following problems:

[0004] 1. Prior art LED lighting fixtures require a ceiling hook to be installed in the middle, and the lamp beads can only be installed radially outside the ceiling hook, which leads to the problem of a dark area being formed in the middle of the LED lighting fixture and makes the light uneven.

[0005] 2. The light source module in an LED lighting fixture generally emits light in one direction. When the LED lighting fixture is turned on, dark areas tend to appear outside the light-emitting direction of the light source module of the LED lighting fixture.

[0006] 3. LED lighting fixtures generally have power supply modules and light source modules arranged separately, and the power supply module requires additional space to be arranged. On the one hand, it affects the height of the LED lighting fixture, increases the product volume, and further increases the packaging and inventory costs. On the other hand, if the power supply module is far from the light source module, the electrical connection between the power supply module and the light source module will be unstable.

[0007] 4. Installing the light source facing downwards gives the ceiling a cold feeling and is not suitable for home environments such as bedrooms.

[0008] 5. Existing LED lighting fixtures have the problem that the overall lamp thickness is too thick, making them look bad.

[0009] In view of the above, in view of the shortcomings and defects in the LED lighting fixtures of the prior art, how to design an LED lighting fixture and solve the problems of dark areas and single light emission in the above-mentioned LED lighting fixtures has become a technical problem that those skilled in the art need to solve as soon as possible. Summary of the Invention

[0010] A number of embodiments related to the present application are described in summary. However, the term present application is used only to describe some embodiments (whether claimed or not) disclosed herein, and is not a complete description of all possible embodiments. Some embodiments described above as various features or aspects of the present invention may be integrated in different ways to form an LED lighting fixture or part thereof.

[0011] SUMMARY OF THE DISCLOSURE The embodiments of the present application provide a novel LED tube lamp base and various aspects of the features to solve the above-mentioned problems.

[0012] The present application discloses an LED lighting device, comprising: A base having a first surface and a second surface and a plurality of bosses whose heads and tails are connected to each other to form a whole; a light source unit provided on the boss of the base; a power supply unit electrically connected to the light source unit; A cover provided outside the light source unit and the power supply unit; and and a ceiling hook for electrically connecting to the outside, the light source unit includes a first light source unit and a second light source unit provided on the first surface and the second surface of the boss, respectively; In the height direction of the LED lighting device, the height of the boss is greater than the height of the power supply unit exposed on the base. [Brief description of the drawings]

[0013] [Figure 1] 1 is an exploded schematic view of an LED lighting device according to an embodiment of the present application. [Diagram 2] 1 is an exploded schematic view of an LED lighting device according to an embodiment of the present application. [Diagram 3] FIG. 2 is a schematic diagram showing the structure of a power supply unit of the LED lighting device in FIG. [Figure 4] FIG. 2 is a schematic diagram showing a power supply cover structure of the LED lighting device in FIG. [Diagram 5] FIG. 2 is a schematic diagram showing a light source cover structure of the LED lighting device in FIG. [Figure 6] FIG. 2 is a schematic diagram showing a light source cover structure of the LED lighting device in FIG. [Figure 7] FIG. 2 is a schematic diagram showing a structure of a light-emitting unit of the LED lighting device in FIG. [Figure 8] FIG. 2 is a schematic diagram showing a base structure of the LED lighting device in FIG. [Figure 9] FIG. 2 is a schematic diagram showing an auxiliary light source cover structure of the LED lighting device in FIG. [Figure 10] 2 is a schematic diagram showing a structure in which a cover portion of the LED lighting fixture in FIG. 1 is removed. FIG. [Figure 11] FIG. 2 is a schematic diagram showing a structure in which a cover portion of the LED lighting fixture in FIG. 1 is removed. [Figure 12] 2 is a cross-sectional view showing a cross-sectional structure in a height direction of the LED lighting device in FIG. 1. [Figure 13] 1 is a schematic perspective view of an LED lighting device according to an embodiment of the present application. [Figure 14] 1 is a schematic perspective view of an LED lighting device according to an embodiment of the present application. [Figure 15] FIG. 14 is a schematic diagram showing a structure of a light-emitting unit of the LED lighting fixture in FIG. 13. [Figure 16] FIG. 14 is a schematic diagram showing a light source cover structure of the LED lighting device in FIG. [Figure 17] FIG. 14 is a schematic diagram showing a light source cover structure of the LED lighting device in FIG. [Figure 18]FIG. 14 is a schematic diagram showing a power supply cover structure of the LED lighting fixture in FIG. [Figure 19] FIG. 14 is a schematic diagram showing a power supply cover structure of the LED lighting fixture in FIG. [Figure 20] FIG. 14 is a schematic diagram showing a base structure of the LED lighting device in FIG. [Figure 21] FIG. 14 is a schematic diagram showing a base structure of the LED lighting device in FIG. [Figure 22] FIG. 14 is a schematic diagram showing a structure for removing a cover portion of the LED lighting fixture in FIG. 13. [Figure 23] FIG. 14 is a schematic diagram showing a structure for removing a cover portion of the LED lighting fixture in FIG. 13. [Figure 24] 14 is a schematic diagram showing an auxiliary light source cover structure of the LED lighting fixture in FIG. 13. FIG. [Diagram 25] 14 is a schematic diagram showing an auxiliary light source cover structure of the LED lighting fixture in FIG. 13. FIG. [Figure 26] FIG. 14 is a schematic diagram showing a structure for removing a cover portion of the LED lighting fixture in FIG. 13. [Figure 27] 14 is a cross-sectional view showing a cross-sectional structure in a height direction of the LED lighting device in FIG. 13. [Figure 28] 1 is a schematic perspective view of an LED lighting device according to an embodiment of the present application. [Figure 29] 1 is a schematic perspective view of an LED lighting device according to an embodiment of the present application. [Diagram 30] FIG. 29 is a schematic diagram showing a power supply cover structure of the LED lighting fixture in FIG. 28. [Diagram 31] FIG. 29 is a schematic diagram showing a power supply cover structure of the LED lighting fixture in FIG. 28. [Diagram 32] FIG. 29 is a schematic diagram showing a light source cover structure of the LED lighting fixture in FIG. 28. [Diagram 33] FIG. 29 is a schematic diagram showing a light source cover structure of the LED lighting fixture in FIG. 28. [Diagram 34] FIG. 29 is a schematic diagram showing a light-emitting unit structure of the LED lighting fixture in FIG. 28. [Diagram 35]FIG. 29 is a schematic diagram showing a base structure of the LED lighting fixture in FIG. 28. [Diagram 36] FIG. 29 is a schematic diagram showing a base structure of the LED lighting fixture in FIG. 28. [Figure 37] FIG. 29 is a schematic diagram showing a structure for removing a cover portion of the LED lighting fixture in FIG. 28. [Figure 38] FIG. 29 is a schematic diagram showing a structure for removing a cover portion of the LED lighting fixture in FIG. 28. [Figure 39] FIG. 29 is a schematic diagram showing a structure for removing a cover portion of the LED lighting fixture in FIG. 28. [Diagram 40] 1 is a schematic perspective view of an LED lighting device according to an embodiment of the present application. [Diagram 41] 1 is a schematic perspective view of an LED lighting device according to an embodiment of the present application. [Diagram 42] FIG. 41 is a schematic diagram showing the structure of a light-emitting unit of the LED lighting fixture in FIG. 40. [Diagram 43] FIG. 41 is a schematic diagram showing the structure of a light-emitting unit of the LED lighting fixture in FIG. 40. [Diagram 44] FIG. 41 is a schematic diagram showing the structure of a light-emitting unit of the LED lighting fixture in FIG. 40. [Diagram 45] FIG. 41 is a schematic diagram showing the structure of a power supply unit of the LED lighting fixture in FIG. 40. [Diagram 46] FIG. 41 is a schematic diagram showing a cover structure of the LED lighting device in FIG. 40. [Figure 47] FIG. 41 is a schematic diagram showing a cover structure of the LED lighting device in FIG. 40. [Figure 48] FIG. 41 is a schematic diagram showing the lamp structure of the LED lighting fixture in FIG. 40. [Figure 49] FIG. 41 is a schematic diagram showing a cover structure of the LED lighting device in FIG. 40. [Figure 50] FIG. 41 is a schematic diagram showing a hook ceiling stopper structure of the LED lighting fixture in FIG. 40. [Figure 51] FIG. 41 is a schematic diagram showing a hook ceiling stopper structure of the LED lighting fixture in FIG. 40. [Figure 52]FIG. 41 is a cross-sectional view showing the lamp body and base structure of the LED lighting fixture in FIG. 40. [Figure 53] FIG. 41 is a cross-sectional view showing the LED lighting fixture structure in FIG. 40. [Figure 54] FIG. 54 is an enlarged view of part A in FIG. 53. [Figure 55] FIG. 54 is an enlarged view of part B in FIG. 53. [Figure 56] FIG. 41 is a schematic diagram showing a base structure of the LED lighting device in FIG. 40. [Figure 57] FIG. 41 is a schematic diagram showing a base structure of the LED lighting device in FIG. 40. [Figure 58] 41 is a schematic diagram showing the structure of a first light source assembly and a second light source assembly of the LED lighting device in FIG. 40. [Figure 59] FIG. 41 is a schematic diagram showing a third light-emitting unit structure of the LED lighting device in FIG. 40. [Figure 60] 1 is a schematic perspective view of an LED lighting device according to an embodiment of the present application. [Figure 61] FIG. 61 is a schematic diagram showing the structure of the LED lighting fixture in FIG. 60 when the light source module is not bent. [Figure 62] FIG. 61 is a schematic diagram showing the base structure of the LED lighting fixture in FIG. 60. [Figure 63] FIG. 61 is a schematic diagram showing the base structure of the LED lighting fixture in FIG. 60. [Fig. 64A] FIG. 61 is a schematic diagram showing a cover structure of the LED lighting fixture in FIG. 60. [Fig. 64B] FIG. 64B is a schematic diagram of the cross section taken along line AA in FIG. 64A. [Fig. 64C] FIG. 54C is an enlarged view of part B in FIG. 54B. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] In order to make the above-mentioned objects, features and advantages of the present application clearer and easier to understand, the following detailed description of specific embodiments of the present application will be given with reference to the drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application may be realized in many different forms and is not limited to the embodiments described below. On the contrary, the purpose of providing these embodiments is to provide a more complete understanding of the disclosure of the present application. The following directions, such as "axial direction", "upward", "downward", etc., are intended to more clearly indicate the structural positional relationship and are not limitations on the present invention. In the present application, the above-mentioned "vertical", "horizontal", and "parallel" are defined to include ±10% based on the standard definition. For example, vertical usually refers to an angle of 90 degrees relative to a reference line, but in the present application, vertical refers to a range of 80 degrees to 100 degrees.

[0015] As shown in Figures 1 and 2, in one embodiment, the present application provides an LED lighting fixture comprising a base 1, a light source unit 2 provided on the base 1, a power supply unit 3 electrically connected to the light source unit 2, a lamp cover 4 covering the outside of the light source unit 2 and the power supply unit 3, and a hook ceiling 5 for electrically connecting to the outside.

[0016] As shown in Figs. 1, 2 and 7, the light source unit 2 may include a first light source assembly 21 having a light source. The first light source assembly 21 emits light toward the center of the LED lighting device. The first light source assembly 21 includes a first lamp plate 210 having lamp beads 200 for emitting light. The beads 200 located on the first lamp plate 210 of the first light source assembly 21 may be uniformly arranged, that is, the spacing distance between two beads 200 adjacent to each first lamp plate 210 is the same or approximately the same, thus ensuring the uniformity of the light output. The lamp beads 200 may use the same color temperature or different color temperatures, thereby adjusting the color temperature of the light output of the entire lamp. The first lamp plate 210 is made of FR4 material, which can provide effects such as environmental protection and high temperature resistance.

[0017] The light source unit 2 may further include a second light source assembly 22 that emits light toward the outside of the LED lighting device. The second light source assembly 22 includes a second lamp plate 220 having lamp beads 200 for emitting light. The lamp beads 200 may use the same color temperature or different color temperatures, thereby adjusting the color temperature of the light emission of the entire lamp. There is a distance between the connection parts of two adjacent second light source assemblies 22, and in order to make the light emission of the second light source assembly 22 uniform, the beads 200 located on the second lamp plate 220 may be arranged closely at both ends. That is, the distance L1 between two adjacent lamp beads 200 near both ends on the second lamp plate 220 is smaller than the distance L2 between two adjacent lamp beads 200 at the middle position of the second lamp plate 220. By setting the distance between two adjacent lamp beads 200, the dark area in the direction of the connection part of the two adjacent second light source assemblies 22 can be weakened, and the light emission of the entire LED lighting device can be made uniform. Specifically, the relationship between the distance L1 between the two adjacent beads 200 at both ends and the distance L2 between the two adjacent beads 200 in the middle is 1:2≦L1:L2<1, preferably, the relationship between the distance L1 between the two adjacent beads 200 at both ends and the distance L2 between the two adjacent beads 200 in the middle is 1:2≦L1:L2≦4:5, more preferably, the relationship between the distance L1 between the two adjacent beads 200 at both ends and the distance L2 between the two adjacent beads 200 in the middle is 1:2≦L1:L2≦2:3. The second lamp plate 220 is made of FR4 material, which can provide effects such as environmental protection and high temperature resistance. In this embodiment, six beads 200 are provided on each second lamp plate 220.

[0018] As shown in Figs. 7-8 and 10-12, the base 1 includes a plurality of light source support parts 11, and the light source support part 11 can be used to install the light source part 2. The plurality of light source support parts 11 are integrally formed by connecting the head and tail parts to each other. The whole formed with the plurality of light source support parts 11 is provided on the power supply cover 32. In this embodiment, the base 1 includes nine light source support parts 11, so that the dark part of the connection part of each light source support part 11 can be effectively reduced while saving costs. In other embodiments, the light source support part 11 can also adopt other designs such as three, six, twelve, and eighteen. The light source support part 11 may be a boss or a convex surface facing the lamp cover 4, or may be a structure capable of supporting another light source part 2. In this embodiment, the light source support part 11 has a boss structure. When viewed from the height direction of the LED lighting device, the cross section of the single light source support part 11 forms an equilateral triangle or a substantially equilateral triangle. In order to ensure that the light emitted by the beads 200 of the light source unit 2 is not blocked and to uniformly illuminate the middle region of the LED lighting device, the beads 200 are provided above the light source support unit 11 in the height direction of the LED lighting device, and the height H1 of the light source support unit 11 is greater than the height H2 at which the power supply cover 12 is exposed to the base 1. That is, the ratio of the height H1 of the light source support unit 11 to the height H2 at which the power supply cover 12 is exposed to the base 1 is H1:H2≧1, preferably, the ratio of the height H11 of the light source support unit 11 to the height H2 at which the power supply cover 12 is exposed to the base 1 is H1:H2≧1.33, and more preferably, the ratio of the height H1 of the light source support unit 11 to the height H2 at which the power supply cover 12 is exposed to the base 1 is H1:H2≧1.5.

[0019] The light source support portion 11 can include two surfaces. Specifically, the light source support portion 11 can include a first surface 111 facing the center of the LED lighting fixture and a second surface 112 facing the edge of the LED lighting fixture. In order to control the light emission angle, in the height direction of the LED lighting fixture, the first surface 111 forms an angle a with the base 1, 90° < a < 180°, preferably, the angle a formed by the first surface 111 and the base 1, 100° < a < 150°, more preferably, the angle a formed by the first surface 111 and the base 1, a = 120°. In order to control the light emission angle, in the height direction of the LED lighting fixture, the second surface 112 forms an angle b with the base 1, 90° < b < 180°, preferably, the angle b formed by the second surface 112 and the base 1, 100° < b < 150°, more preferably, the angle b formed by the second surface 112 and the base 1, b = 120°. Further, in the height direction of the LED lighting fixture, the top of the light source support portion 11 can have a chamfered surface, whereby the light emission effect of the light source support portion 11 is better and can play an aesthetic role.

[0020] The first light source assembly 21 and the second light source assembly 22 are provided on both sides of the light source support portion 11. The first light source assembly 21 is provided on a first surface 111 provided toward the hanging sealing 5 of the light source support portion 11, and the second light source assembly 22 is provided on a second surface 112 where the light source support portion 11 is directed toward the edge of the LED lighting fixture. In this embodiment, the first lamp plate 210 and the second lamp plate 220 are respectively bonded and provided on the first surface 111 and the second surface 112 of the light source support portion 11. Specifically, rubbers such as thermally conductive rubber for fixing the first lamp plate 210 and the second lamp plate 220 to the side surface of the light source support portion 11 can be used, and the first lamp plate 210 and the second lamp plate 220 are fixed and have a heat dissipation effect. In the height direction of the LED lighting fixture, the angle c formed by the first lamp plate 210 and the base 1 is the same as or substantially the same as the angle a formed by the first surface 111 and the base 1, and the angle d formed by the second lamp plate 220 and the base 1 is the same as or substantially the same as the angle b formed by the second surface 112 and the base 1. That is, in the height direction of the LED lighting fixture, the angle c formed by the first lamp plate 210 and the base 1 is 90° < c < 180°, preferably, the angle c formed by the first lamp plate 210 and the base 1 is 100° < c < 150°, and more preferably, the angle c formed by the first lamp plate 210 and the base 1 is c = 120°. In the height direction of the LED lighting fixture, the second lamp plate 220 forms an angle d with the base 1, and 90° < d < 180°, preferably, the angle d formed by the second lamp plate 220 and the base 1 is 100° < b < 150°, and more preferably, the angle d formed by the second lamp plate 220 and the base 1 is d = 120°.

[0021] The base 1 has a reflective effect on the light emitted from the first light source assembly 21 that emits light toward the center of the LED lighting fixture. At least a part of the light emitted from the first light source assembly 21 is directly incident on the base 1, and then emitted from the lamp cover 4 after being reflected by the base 1. The base 1 may include a reflective layer, which may be a white paint coating or a coating, or the base 1 itself may be a material layer having a reflective function.

[0022] As shown in Figs. 1-2, 10-11, the base 1 includes a recess 12 for accommodating the ceiling hook 5. The power supply unit 3 can be partially accommodated in the recess 12. The power supply unit 3 includes a power plate 31, which is accommodated in the recess 12, and the power plate 31 is electrically connected to the light source unit 2 and the ceiling hook 5 via wires / terminals, respectively. The power supply unit 3 can also include a power cover 32 provided on the power plate 31 and partially accommodated in the recess 12. The power cover 32 is made of PC material to prevent unnecessary electrical connections from occurring to other parts of the power plate 31, thereby preventing the risk of electric leakage / electric shock. The power cover 32 can also be made of metal material, whereby the heat generated by the power plate 31 during operation is transferred to the power cover 32 through thermal radiation, and then the heat is released through the heat dissipation effect of the power cover 32, thereby achieving a better heat dissipation effect. In addition, the blocking action of the power cover 32 made of metal material can prevent combustion ignition and play a more beautiful role. The power supply cover 32 can also adopt a method of combining a metal material with a PC material, with the side closer to the power supply plate 31 being PC material to perform an insulating function, and the side away from the power supply plate 31 in the height direction of the LED lighting fixture is made of metal material, which improves the heat dissipation effect, prevents ignition and combustion, and plays a role in providing a good appearance.

[0023] When viewed from a cross section in the height direction of the LED lighting device, a part of the power supply cover 32 is located on the recess 12 of the base 1, and a part is located within the recess 12 of the base 1. The power supply cover 32 can include a support portion 321 for supporting. The support portion 321 is partially provided in the recess 12 for supporting the center portion of the power supply cover 32. The support portion 321 can protrude toward the recess 12. The support portion 321 is provided around the hook ceiling 5. Furthermore, the support portion 321 can include one or more support reinforcing members 3211. The support reinforcing members 3211 are located on the periphery of the support portion 321 and play a role in reinforcing the support strength of the support portion 321. The support portion 321 can also include one or more reinforcing ribs 3212. The reinforcing ribs 3212 extend from the support portion 321 toward the edge of the power supply cover 32 and have a thickness for supporting the power supply cover 32. In the height direction of the LED lighting device, the height of the reinforcing ribs 3212 is not higher than the height of the power supply cover 32. The reinforcing rib 3212 is provided inside the power supply cover 32 when viewed from a cross section in the height direction of the LED lighting fixture, and is not exposed from the power supply cover 32, so that the height of the power supply cover 32 relative to the base 1 is not increased.

[0024] As shown in Figs. 18 and 19, the center of the power supply cover 32 is for accommodating the periphery of the ceiling hook 5, and may include one or more mounting parts 329. The mounting parts 329 protrude toward the mounting surface in the height direction of the LED lighting device. The surface of the mounting parts 329 protruding toward the mounting surface may or may not be in contact with the base 1. When the surface of the mounting parts 329 protruding toward the mounting surface contacts the base 1, the power supply cover 32 and the base 1 are connected, and the stability of the connection can be improved. The surface of the mounting parts 329 protruding toward the mounting surface may not contact the base 1, and the material of the power supply cover 32 can be reduced, and the cost can be reduced. In this embodiment, a form is adopted in which the surface of the mounting parts 329 protruding toward the mounting surface contacts the base 1. In this embodiment, two mounting parts 329 are included, and the two mounting parts 329 are provided opposite each other. The two mounting parts 329 each have a hole for enabling the power supply cover 32 and the base 1 to be fixed with a screw, and thus the power supply cover 32 and the base 1 can be connected by screwing. The edges of the mounting parts 329 can be chamfered and / or beveled, which makes it difficult for an installer to scratch the edges of the mounting parts 329 during the installation process, thereby improving safety during the installation process.

[0025] The portion of the power supply cover 32 exposed in the recess 12 of the base 1 has a reflective effect on the light emitted from the light source unit 2. The power supply cover 32 may be made of a material with excellent reflectivity, such as a metal material or a plastic material. In order to enhance the reflectivity of the power supply cover 32, the power supply cover 32 may be made of a white material to enhance the reflective effect. The power supply cover 32 has a reflective effect on the light emitted from the first light source assembly 21 that emits light toward the center of the LED lighting fixture. The light emitted from the first light source assembly 21 is at least partially irradiated directly onto the power supply cover 32, and then emitted from the lamp cover 4 due to the reflective effect of the power supply cover 32.

[0026] The portion of the power supply cover 32 exposed in the recess 12 of the base 1 may be annular or approximately annular. In order to reduce light that is reflected and emitted through the power supply cover 32 due to the power supply cover 32 being shielded, the power supply cover 32 may have both sides with arc-shaped slopes or both sides with straight-sided slopes. Similarly, the power supply cover 32 may have four straight-sided slopes / polygonal straight-sided slopes.

[0027] As shown in FIGS. 7-8, 10-11, the light source support 11 further includes one or more lamp plate stopper units 113, and the first lamp plate 210 and the second lamp plate 220 each include one or more lamp plate stopper grooves 201. The interaction between the lamp plate stopper units 113 and the lamp plate stopper grooves 201 makes the first lamp plate 210 and the second lamp plate 220 less likely to be displaced, and the connection between the first lamp plate 210 and the second lamp plate 220 and the base 1 can be more stable. In the height direction of the LED lighting device, the lamp plate stopper unit 113 is located at the lower part of the light source support 11 and presents a protrusion, and the lamp plate stopper groove 201 can be located at the lower part of the first lamp plate 210 and / or the second lamp plate 220. The lamp plate stopper units 113 are provided corresponding to the lamp plate stopper grooves 201. When fixing the lamp plates, the first lamp plate 210 is placed on the first surface 111, and the lamp plate stopper unit 113 is installed in the lamp plate stopper groove 201; when the second lamp plate 220 is placed on the second surface 112, the lamp plate stopper unit 113 is also placed in the lamp plate stopper groove 201. In this embodiment, the first surface 111 of each light source support 11 includes two lamp plate stopper units 113, the second surface 112 includes two lamp plate stopper units 113, and each of the first lamp plate 210 and the second lamp plate 220 includes two corresponding lamp plate stopper grooves 201.

[0028] As shown in FIGS. 5-6 and 10-11, the light source unit 2 may further include a light source cover 24 for covering the first light source assembly 21 and the second light source assembly 22. The light source cover 24 may be made of a transparent PC material to reduce light loss, and the light may be softened by adding a material with a light diffusion effect such as light diffusion powder. The shape of the light source cover 24 may be an integral structure that matches the entire light source support unit 11. In addition, since the light source cover 24 is integral, assembly is more convenient. In another embodiment (not shown), the LED lighting device may include a plurality of light source covers 24 that respectively cover the first light source assembly 21 and the second light source assembly 22. The light source cover 24 may include a base fixing member 241. Specifically, the base fixing member 241 is provided at a connection point with the first lamp plate 210, that is, at a corresponding branch point between the light source cover 24 and the light source support unit 11. The base fixing member 241 is used to connect and fix the base 1. The base fixing member 241 is directly connected to the base 1, and can connect and fix the light source cover 32 and the base 1. Specifically, the base fixing member 241 and the base 1 can be connected by a connection method such as bolt lock, snap connection, engagement connection, etc. The base fixing member 241 can be located on the outer periphery side of the light source cover 24 and / or the inner periphery side of the light source cover 24. The base fixing member 241 can be installed by bonding to the base 1, which can increase the contact area and make the fixing more stable. The base fixing member 241 does not need to be in direct contact with the base 1, that is, another intermediate member can be provided between the base fixing member 241 and the base 1.

[0029] As shown in FIGS. 1-2, 10-11, the base 1 may include a lamp cover connecting part 15 for connecting with the cover 4. The base fixing member 241 may be connected to the lamp cover connecting part 15 and may not directly contact the base 1. The lamp cover connecting part 15 is fixed between the base fixing member 241 and the base 1. The base fixing member 241, the lamp cover connecting part 15 and the base 1 may be connected by a connection method such as bolt lock, snap connection, engagement connection, etc. In another embodiment (not shown), the base fixing member 241 may be provided between the base 1 and the lamp cover connecting part 15, and the base fixing member 241 may contact the base 1 and the lamp cover connecting part 15, respectively.

[0030] As shown in FIGS. 5-6, 10-11, the light source cover 24 may include a fixing rib member 242 for fixing the first lamp plate 210 / second lamp plate 220. The fixing rib member 242 is provided on the side of the light source cover 24 facing the first lamp plate 210 / second lamp plate 220. After the light source cover 24 is connected and fixed to the base 1 via the light source fixing member 241, the fixing rib member 242 is pressed onto the first lamp plate 210 / second lamp plate 220 to apply a certain pressure to the first lamp plate 210 / second lamp plate 220 to fix the first lamp plate 210 / second lamp plate 220. At the same time, the first lamp plate 210 / second lamp plate 220 is restricted between the light source support part 11 and the light source cover 24 by the stopper action of the lamp plate stopper unit 113 of the light source support part 11 and the lamp plate stopper groove of the first lamp plate 210 / second lamp plate 220. Specifically, the first lamp plate 210 / the second lamp plate 220 are provided between the lamp plate stopper unit 113 and the fixing rib member 242, and the first lamp plate 210 / the second lamp plate 220 are supported by the lamp plate stopper unit 113 and receive pressure from the fixing rib member 242 to fix the first lamp plate 210 / the second lamp plate 220. The fixing rib member 242 can be disposed between two adjacent beads 200 to reduce the influence of light output on the first light source assembly 21 and the second light source assembly 22. Furthermore, the fixing rib member 242 does not extend to the lower part of the light source cover 24 when viewed from the height direction of the LED lighting fixture. That is, the fixing rib member 242 is not provided at the lower part of the light source cover 24. This design can prevent the fixing rib member 242 from applying excessive pressure to the first lamp plate 210 / the second lamp plate 220. In other embodiments (not shown), the fixed rib member 242 may extend to the bottom of the light source cover 24 , i.e., from the light source cover 24 to the bottom, including the fixed rib member 242 .

[0031] The light source cover 24 may further include a lens structure (not shown) for adjusting the emission angles of the first light source assembly 21 and the second light source assembly 22 by the action of a lens.

[0032] 3-4 and 10-11, the power supply cover 32 of the power supply unit 3 includes one or more power supply cover fixing parts 322, the base 1 includes one or more power supply cover fixing members 13, and the power supply cover 32 and the base 1 are fixedly connected by interaction between the power supply cover fixing parts 322 and the power supply cover fixing members 13. The power supply cover fixing parts 322 can also be connected and fixed to the base 1 while being connected to the base fixing member 241 of the light source cover 24. That is, the power supply cover fixing parts 322 can be provided between the base fixing member 241 of the light source cover 24 and the base 1. The power supply cover fixing parts 322, the base fixing member 241, and the base 1 can be connected by a connection such as a bolt lock, a snap connection, or an engagement connection.

[0033] The installation position of the power supply cover fixing part 322 can correspond to the reinforcing rib 3212; in other words, by installing a corresponding power supply cover fixing part 322 for each extension point of the reinforcing rib 3212, the connection between the power supply cover 32 and the base 1 can be made more stable.

[0034] The power supply cover fixing part 322 can be installed toward the connection part of the first lamp plate 210, i.e., the connection part of two adjacent light source supports 11, in order to reduce the shading effect of the light emitted from the first light source assembly 21. This reduces the light loss caused by the light emitted from the first light source assembly 21 due to the shading of the power supply cover fixing part 322.

[0035] As shown in FIGS. 1-3 and 9-11, the light source unit 2 may further include an auxiliary lighting unit 23 as an auxiliary light source. Since the power plate 31 is disposed at a position relative to the center of the entire LED lighting device, the auxiliary lighting unit 23 may be disposed on the power plate 31 to place the light source at a central position in order to achieve a good light output effect. In addition, since the auxiliary lighting unit 23 is provided on the power plate 31 instead of other separate lamp boards or circuit boards, the circuit layout may be simplified. The auxiliary lighting unit 23 includes one or more lamp beads 200 for light emission. The beads 200 of the auxiliary lighting unit 23 may adopt the same or different color temperature as the beads 200 of the first light source assembly 21 and / or the second light source assembly 22, thereby changing the color temperature of the LED lighting device. In this embodiment, when a user turns on the auxiliary lighting unit 23 at night, the auxiliary lighting unit 23 emits a warm light source so as to reduce the irritating effect of the LED lighting device on human eyes. The auxiliary lighting unit 23 may also include a signal receiver (not shown). The auxiliary light-emitting unit 23 can receive an external wireless signal via the signal receiver.

[0036] The light source unit 2 may further include an auxiliary light source cover 25 provided on the outside of the auxiliary light emitting unit 23. The auxiliary light source cover 25 may be disposed on the power supply cover 32. The auxiliary light source cover 25 may include an auxiliary light source cover fixing unit 251 for fixed connection to the power supply cover 32. The power supply cover 32 may include an auxiliary light source cover fixing part 328 for connecting and fixing with 3232. The direct action between the auxiliary light source cover fixing part 328 and the auxiliary light source cover fixing unit 251 includes, but is not limited to, a connection manner such as snap, fitting, engagement, adhesion, etc.

[0037] As shown in FIG. 25, the auxiliary light source cover 25 may include an auxiliary light optical unit 252. The auxiliary light optical unit 252 has a lens structure and plays a role of refraction of light energy. The auxiliary light optical unit 252 can enlarge the spot where the light emitted from the auxiliary light source is irradiated to the outside, and preferably, the lens structure of the auxiliary light optical unit 252 can enlarge the spot where the light emitted from the auxiliary light source is irradiated to the outside and adjust the position of the spot. At the same time, the signal receiver can receive wireless signals from more angles, thereby reducing the difficulty for the user to operate the wireless signal output.

[0038] As shown in FIGS. 3-4, 8, 10-11, in order to better determine the mounting angle of the power supply cover 32 (aligning the auxiliary light source cover 25 with the auxiliary light emitting unit 23), the power supply cover 32 may further include one or more power supply cover stoppers 323. The base 1 may include one or more power supply cover stopper members 14 corresponding to the power supply cover stoppers 323. The interaction between the power supply cover stopper portion 323 and the power supply cover stopper member 14 makes it easier to determine the orientation of the power supply cover 32. Specifically, the power supply cover stopper portion 323 may have a groove portion, and the power supply cover stopper member 14 may be a protrusion, and when the power supply cover stopper portion 323 and the power supply cover stopper member 14 are connected and fitted, at least a part of the power supply cover stopper member 14 engages in the power supply cover stopper portion 323, making it difficult for the power supply cover 32 and the base 1 to slide or shift in position.

[0039] 3-4, 10, 18 and 19, the power supply cover 32 may include a conductor groove 323 for passing an electrical connection conductor between the light source unit 2 and the power supply unit 3 to achieve the effect of electrically connecting the light source unit 2 and the power supply unit 3. The conductor groove 323 is provided on the extension part of the power supply cover 32 and can contact the light source cover 24, so that the conductor of the light source unit 2 can be connected to the power supply unit 3 through the conductor groove 324.

[0040] The power supply cover 32 may include a wiring member 325 that may be provided on the mounting portion 329. The wiring / terminal is connected to the ceiling hook 5 via the wiring member 325.

[0041] The power supply cover 32 may include one or more power board fixing members 326 for fixing the power supply plate 31. The power supply plate 31 includes a power board fixing portion 311 for fixing. The power supply plate fixing portion 311 interacts with the power supply plate fixing member 326 to fix the power supply plate 31 to the base 1. The power supply plate fixing member 326 may be in the form of a protrusion and may pass through the power supply plate fixing portion 311 of the power supply plate 31. A material that can be welded is used for the tip of the power supply plate fixing member 326. When fixing the power supply plate 31 to the base 1, the tip of the power supply plate fixing member 326 is melted and heated and connected to the base 1. After cooling, the power supply plate 31 is fixed to the base 1 via the power supply plate fixing member 326 of the power supply cover 32.

[0042] As shown in Figures 1 to 2 and 11, the base 1 may include one or more sponges 16. The sponges 16 increase friction when connecting the LED lighting fixture to the outside, simplifying the installation. The sponges 16 may be provided on the side of the base 1 facing the installation surface.

[0043] As shown in Figs. 13 to 27, the present embodiment provides an LED lighting device having a configuration similar to that of the LED lighting device of the embodiment provided in Figs. 1 to 12, and will not be described further here. In the LED lighting device of the present embodiment, the light source unit 2 includes a first light source assembly 21 and a second light source assembly 22. The first light source assembly 21 and the second light source assembly 22 are erected on the mounting surface of the LED lighting device. The first light source assembly 21 emits light toward the center of the LED lighting device, and the second light source assembly 22 emits light toward the outer periphery of the LED lighting device. The first light source assembly 21 and the second light source assembly 22 are disposed on the rear surface. The first light source assembly 21 and the second light source assembly 22 may be disposed in a ring shape or a substantially ring shape around the center of the LED lighting device. The second light source assembly 22 may be disposed in a ring shape or a substantially ring shape around the center of the LED lighting device. The first light source assembly 21 may adopt a form in which a plurality of hard lamp plates are joined, or may adopt an FPC soft lamp plate. The second light source assembly 22 may adopt a form in which multiple hard lamp plates are joined together, or may adopt a flexible FPC soft lamp plate. In this embodiment, the first light source assembly 21 and the second light source assembly 22 both adopt FPC soft lamp plates, which can save costs.

[0044] In order to support the light-emitting unit 21, the base 1 may further include a lamp plate support 18. The lamp plate support 18 may be a convex wall or boss protruding toward the lamp cover 4 on the base. The convex wall or boss of the lamp plate support 18 is provided on the base 1 perpendicular or approximately perpendicular to the mounting surface of the LED lighting device. The convex wall / boss of the lamp plate support 18 is integral with the base 1 and can be formed by press molding. The convex wall / boss of the lamp plate support 18 and the base 1 are separate structures, that is, the lamp plate support 18 is a single structure, and the lamp plate support 18 and the base 1 are connected by a fixing method such as welding or adhesive. In this embodiment, the convex wall / boss of the lamp plate support 18 and the base 1 are integral with each other, and the stability of the convex wall / boss of the lamp plate support 18 and the base 1 is better maintained. The convex wall / boss can be arranged in a ring shape or approximately ring shape so as to surround the center of the LED lighting device. The first light source assembly 21 and the second light source assembly 22 are respectively provided on both sides of the convex wall / boss of the lamp plate support 18. Preferably, the first light source assembly 21 and the second light source assembly 22 are respectively provided above both sides of the convex wall / boss of the lamp plate support 18 so that the light emission effect is better. The first light source assembly 21 and the second light source assembly 22 can be fixed to the lamp plate support 18 by adhesive connection. If the lamp plate support 18 is a convex wall, the dark area between the first light source assembly 21 and the second light source assembly 22 can be reduced. If the lamp plate support 18 is a boss, the first light source assembly 21 and the second light source assembly 22 are disposed on two different sides of the boss, so that the first light source assembly 21 and the second light source assembly 22 are more likely to be discharged by heat conduction. In this embodiment, the lamp plate support 18 has a boss structure. The height H3 of the boss of the lamp plate support 18 can be set to be equal to or greater than the width L3 of the lamp plate so that the lamp plate support 18 can be stably installed.While ensuring the height of the boss, reducing the dark part between the first light source assembly 21 and the second light source assembly 22, and ensuring the stability of the boss body, the relationship between the height H3 of the boss of the lamp plate support portion 18 and the short width L4 of the boss of the lamp plate support portion 18 can be set to 0.5 ≦ H3:L4 ≦ 2. Preferably, 1 ≦ H3:L4 ≦ 2, and more preferably, 1 ≦ H3:L4 ≦ 1.5.

[0045] As shown in FIGS. 18 and 20, the lamp plate support portion 18 can further include a wiring groove 181. The wiring groove 181 fits into the wiring portion 243 of the light source cover 24, through which a conducting wire can pass, and can electrically connect the first light source assembly 21, the second light source assembly 22, and the power supply unit 3.

[0046] As shown in FIG. 26, the distance from the centers of the first light source assembly 21 and the second light source assembly 22 to the center of the LED lighting fixture is L5, and the radius of the base 1 is R. In order to brighten the central part of the LED lighting fixture and improve the external light-emitting effect of the LED lighting fixture, the relationship between the distance L5 from the centers of the first light source assembly 21 and the second light source assembly 22 to the center of the LED lighting fixture and the radius of the base 1 is 0.4R ≦ L5 < R. Preferably, 0.5R ≦ L5 < R, and more preferably, 0.6R ≦ L5 < R.

[0047] As shown in Figs. 13-14, 16-17, and 22, a light source cover 24 may be provided on the outside of the first light source assembly 21 and the second light source assembly 22. The light source cover 24 is provided on the outside of the first light source assembly 21 and the second light source assembly 22, and protrudes toward the lamp cover 4. When viewed from the cross-sectional direction of the LED lighting device, the light source cover 24 may have an arc shape or a boss shape. In this embodiment, the light source cover 24 is boss-shaped, so that the shape of the optical cover 24 is matched to the shape of the lamp plate support part 18, and plays a role of achieving a higher light output effect. The boss of the light source cover 24 is provided vertically or approximately vertically on the base 1. The light source cover 24 may include a wiring part 243. The first light source assembly 21 and the second light source assembly 22 are electrically connected to the power supply part 3 through the conductor of the wiring part 243. The light source cover 24 is transparent and can enhance the light effect. By adding a material such as a diffusion powder to the material of the light source cover 24, the light output can be adjusted and the light output can be made softer.

[0048] As shown in Figs. 20 and 23, the base 1 may include a heat dissipation fin 19. The heat dissipation fin 19 may be made of a material having heat dissipation function and / or insulation. In one embodiment, the heat dissipation fin 19 is made of a material having heat dissipation and insulation properties such as Mylar fin. The heat dissipation function of the heat dissipation fin 19 allows the heat generated in the power supply unit 3 to pass through the heat conduction heat dissipation method, and better dissipates the heat to reduce damage to electronic components caused by overheating of the power supply unit 3. Specifically, the heat dissipation fin 19 may be provided on the base 1 on the side close to the mounting surface of the LED lighting device or on the side close to the power supply. The heat dissipation fin 19 may be provided at a position corresponding to the power supply unit 31 of the power supply unit 3. The heat dissipation fin 19 may be connected to the base 1 by bonding, screwing, or the like.

[0049] As shown in Figs. 28-39, this embodiment provides an LED lighting device having a configuration similar to that of the LED lighting device of the embodiment provided in Figs. 1-12, and will not be described further here. In the LED lighting device of this embodiment, the light source unit 2 includes a light emitting unit 21. The light emitting unit 21 is erected on the mounting surface of the LED lighting device. The light emitting surface of the light emitting unit 21 is provided toward the center of the LED lighting device. The light emitting unit 21 can be arranged in a ring shape or a substantially ring shape so as to surround the center of the LED lighting device. The light emitting unit 21 may be in a form in which a plurality of hard lamp plates are joined together, or in a form in which a soft lamp plate such as an FPC is bent. In this embodiment, the light emitting unit 21 is formed by bending a soft lamp plate, which can save costs.

[0050] In order to be able to fix the light-emitting unit 21, the base 1 can further be provided with a lamp plate support portion 18. The lamp plate support portion 18 may be a convex wall, a boss, or a side surface of a recess of the base 1 that protrudes toward the lamp cover 4 on the base. The lamp plate support portion 18 has an attachment surface for attaching the light-emitting unit 21, and the attachment surface is provided perpendicular or substantially perpendicular to the base 1. The lamp plate support portion 18 can be of an integral structure with the base 1. The lamp plate support portion 18 may be a single structure that connects the lamp plate support portion 18 and the base 1 by a fixing method such as welding or adhesion. In this embodiment, the lamp plate support portion 18 and the base 1 are of an integral structure, which ensures better stability between the lamp plate support portion 18 and the base 1. Further, in this embodiment, the lamp plate support portion 18 is a side surface of one protruding portion facing the LED lighting fixture attachment surface. The lamp plate support portion 18 may be provided in an annular or substantially annular shape so as to surround the center of the LED lighting fixture. The light-emitting unit 21 is provided on the lamp plate support portion 18, and the LED beads on the light-emitting unit 21 emit light toward the center of the LED lighting fixture. Preferably, the light-emitting unit 21 can be arranged above the lamp plate support portion 18 in order to improve the light emission effect of the light emitted by the light-emitting unit 21. The light-emitting unit 21 can be fixed to the lamp plate support portion 18 by adhesive connection.

[0051] As shown in FIGS. 34 and 39, the distance from the light-emitting unit 21 to the center of the LED lighting fixture is L6, and the radius of the base 1 is R1. In order to brighten the central portion of the LED lighting fixture and improve the external light emission effect of the LED lighting fixture, the relationship between the distance L6 from the light-emitting unit 21 to the center of the LED lighting fixture and the radius R1 of the base 1 is 0.6R1 ≦ L6 < R1, preferably 0.7R1 ≦ L6 < R1, and more preferably 0.8R1 ≦ L6 < R1.

[0052] As shown in Figs. 28, 29, 32 to 34, a light source cover 24 may be provided on the outside of the light emitting unit 21. The light source cover 24 is provided to match the light emitting unit 21. The light source cover 24 may include a wiring part 243. The light emitting unit 21 is electrically connected to the power supply part 3 through the conductor of the wiring part 243. The light source cover 24 may be transparent to reduce light absorption to reduce light loss, and the light source cover 24 may be made more uniform and soft by adding a diffusion powder to the material of the light source cover 24 or providing a material such as a diffusion coating on the light source cover 24 to adjust the light output.

[0053] In another embodiment, a light source cover or other cover installation object is not installed on the outside of the light emitting unit 21, and light loss due to the installation of a light source cover or the like can be reduced.

[0054] As shown in Figs. 30, 31, 37, and 38, the power supply cover 32 is provided with a reflective surface that reflects at least a part of the light emitted from the light emitting unit 21. The power supply cover 32 forms the reflective surface on a part exposed outside the recess 12 of the base 1 in order to reflect the light emitted from the light source unit 2. The power supply cover 32 can be made of a material having excellent reflectivity, such as a metal material or a plastic material. In addition, in order to enhance the reflectivity of the power supply cover 32, the power supply cover 32 can be made of a white material to enhance the reflectivity. Specifically, the power supply cover 32 has a reflective effect on the light emitted from the light emitting unit 21 that emits light toward the center of the LED lighting device. The light emitted from the first light source unit 21 is at least partially directly irradiated to the power supply cover 32, and then emitted from the lamp cover 4 by the reflective effect of the power supply cover 32.

[0055] The portion of the power supply cover 32 exposed to the recess 12 of the base 1 may be annular or approximately annular. In order to reduce the light reflected and emitted through the power supply cover 32 due to the shielding of the power supply cover 32, the power supply cover 32 may have both sides of an arc-shaped slope and both sides of a straight-sided slope. Similarly, the power supply cover 32 may have a slope shape with four straight sides / straight sides of a polygon. In this embodiment, the portion of the power supply cover 32 exposed to the recess 12 of the base 1 may have both sides of an arc-shaped slope and both sides of a straight-sided slope, which ensures that the power supply plate 31 is accommodated in the power supply cover 32 and provides a better reflection effect for the portion of the power supply cover 32 exposed to the recess 12 of the base 1.

[0056] As shown in FIGS. 40-59, in one embodiment, the present invention provides an LED lighting fixture including a photovoltaic module 1', a light source cover 2', a lamp body 3', a base 4', and a ceiling hook 5'.

[0057] As shown in Figures 40, 41 and 48, the photovoltaic module 1' includes a light source module 11' and a power supply module 12'. The light source module 11' is electrically connected to the power supply module 12'. The light source module 11' includes a first light source plate 111'. The first light source plate 111' emits light away from the mounting surface of the LED lighting fixture. The first light source plate 111' can include a first light-emitting unit 1111'. The first light-emitting unit 1111' includes lamp beads 100'. The lamp beads 100' are arranged in a ring shape on the first light source plate 111'. The first light-emitting unit 1111' can include one or more beads 100' arranged in a ring shape. The distance between two adjacent beads 100' located on the same ring is the same or approximately the same. In this embodiment, it includes three beads 100' arranged in a ring shape.

[0058] The first light-emitting unit 1111' may include a plurality of virtual circles with different radii arranged on the circumference of the plurality of virtual circles. The plurality of virtual circles may have a common center, that is, the plurality of virtual circles are concentric circles with different radii. The distance between two adjacent beads 100 located on the same virtual circle may be the same or approximately the same so that the light emitted by the first light-emitting unit 1111' is uniformly emitted. In this embodiment, three virtual circles are included. The radius of the first virtual circle L1 is r1, the radius of the second virtual circle L2 is r2, and the radius of the third virtual circle L3 is r3. The radius difference r1-r2 between the first virtual circle L1 and the second virtual circle L2 and the radius difference r2-r3 between the second virtual circle L2 and the third virtual circle L3 are the same or approximately the same, so that the light emitted by the first light-emitting unit is uniformly emitted.

[0059] In other embodiments (not shown), the lamp beads 100' may be arranged in the form of a square or multiple squares.

[0060] The first light source plate 111' may further include an auxiliary light-emitting unit 1112'. The auxiliary light-emitting unit 1112' includes beads 101', which may be beads that emit the same color temperature as the beads 100', or beads that emit a different color temperature than the beads 100'. The auxiliary light-emitting unit 1112' may be lit alone when the first light-emitting unit 1111' is not lit, or may be lit simultaneously with the first light-emitting unit 1111'.

[0061] The first light source plate 111' may be fixed to the base 4'. Specifically, the first light source plate 111' may be connected and fixed by a conventional method such as screw lock, adhesive, snap, or the like.

[0062] The light source module 11' may include a second light source plate 112'. The second light source plate 112' emits light away from the mounting surface of the LED lighting device. The second light source plate 112' may be provided outside the first light source plate 111'. The second light source plate 112' includes a second light emitting unit 1121'. The second light emitting unit 1121' is located outside the first light emitting unit 1111', and the second light emitting unit 1121' is located at a position farther away from the axis of the LED lighting device than the first light emitting unit 1111'. Since the second light emitting unit 1121' is located relatively farther from the axis of the LED lighting device, it can illuminate the outside of the first light emitting unit 1111', and the illumination range of the LED lighting device can be made wider. The second light emitting unit 1121' includes beads 102' which may be beads that emit the same color temperature as the beads 100' or beads that emit a color temperature different from that of the beads 100'. The distance between two adjacent beads 102' may be the same or approximately the same, so that the light emitted by the second light-emitting unit 1121' is emitted uniformly.

[0063] The second light source plate 112' may be fixed to the base 4'. Specifically, the second light source plate 112' can be connected and fixed by screwing, adhesive, or the like.

[0064] As shown in Figs. 40, 41 and 59, the light source module 11' may include a third light source plate 113'. The third light source plate 113' may emit light toward the mounting surface of the LED lighting device, thereby preventing dark areas from being generated on the mounting surface, and thus improving the lighting effect of the space. The third light source plate 113' may be installed on the main body 3', and may be installed on the opposite side of the base 4' to the first light source plate 111 and the second light source plate 112. The third light source plate 113' may be connected and fixed by screwing, gluing, or the like.

[0065] The third light source plate 113' includes a third light-emitting unit 1131'. Specifically, the third light-emitting unit 1131' emits light toward a certain reflecting surface 31'. The light emitted by the third light-emitting unit 1131' is reflected by the reflecting surface 31' and then emitted. The reflecting surface 31' may be a flat surface or a curved surface. If the reflecting surface 31' is a curved surface, the angle of the light emitted by the third light-emitting unit 1131' can be expanded.

[0066] The reflective surface 31' may be located on the lamp body 3'. Specifically, the reflective surface 31' may be a surface of the lamp body 3' facing away from the mounting surface of the LED lighting device. In order to improve the reflective effect of the reflective surface 31', the third light source plate 113' may be installed at a relatively outer position on the base 4', and the diameter of the lamp body 3' may be larger than the diameter of the base 4', i.e., the cross-sectional area of ​​the lamp body 3' may be larger than the cross-sectional area of ​​the base 4', thereby increasing the reflective area.

[0067] The third light-emitting unit 1131' includes beads 103', which may be beads emitting the same color temperature as the beads 100' or beads emitting a different color temperature than the beads 100'. The distance between two adjacent beads 103' may be the same or approximately the same, so that the light emitted by the third light-emitting unit 1131' is emitted uniformly.

[0068] As shown in Figs. 40-42 and 45, the photovoltaic module 1' includes a power module 12'. The power module 12' can be a structure separate from the light source module 11', so as to achieve a better heat dissipation effect, and the heat dissipated by the light source module 11' is less likely to affect the power module 12', thereby affecting the life of the elements on the power module 12'. The power module 12' can be a structure integral with the light source module 11', so as to save material costs and simplify the assembly process. The power module 12' can include a power plate 121'. The power plate 121' can be installed integrally with or separate from the light source board. In this embodiment, the power plate 121' and the first light source plate 111' are an integral structure. The power element 1211' of the power plate 121' can be installed on the same side as the lamp bead 100', so as to reduce the internal space of the LED lighting fixture, and further reduce the total lamp height of the LED lighting fixture. The power element 1211 of the power plate 121' may be attached on the opposite side of the bead 100', thereby reducing the effect of heat generated by the bead 100' on the power element. The power element 1211' of the power plate 121' may be partially attached on the same side as the lamp bead 100', and partially attached on the opposite side of the lamp bead 100', thereby controlling the arrangement of the power element 1211' and at the same time effectively controlling the effect of heat generated by the lamp bead 100' on the power element.

[0069] As shown in FIGS. 40 and 41, the light source cover 2 may include a first light source cover 21'. The first light source cover 21' covers the light output side of the first light source plate 111' and the second light source plate 112', and light emitted by the first light emitting unit 1111' and the second light emitting unit 1121' is emitted through the first light source cover 21'. The first light source cover 21' may be made of a material that diffuses light, such as diffusion powder, and may make the light output of the LED lighting device more uniform. The first light source cover 21' may include a first anti-detachment member (not shown) that connects and fixes the first light source cover 21' to a base.

[0070] As shown in Figures 40, 41, 46, 47, 53, and 54, the light source cover 2' may further include a second light source cover 22'. The second light source cover 22' covers the light output side of the third light source plate 113', and the light emitted by the third light-emitting unit 1131' passes through the second light source cover 22' and then is output. By providing the second light source cover 22', the third light source plate 113' can be prevented from being directly exposed, and the safety of the LED lighting device can be improved.

[0071] The second light source cover 22' may include a lamp body fixing structure 221. The second light source cover 22' and the base 4' are connected and fixed by the connecting and fixing action of the fixing member 221'. Specifically, the fixing member 221' may be a hole, and a hole corresponding to the base 4' is provided, and the second light source cover 22' and the base 4' are connected and fixed by connecting a connecting member such as a screw / bolt.

[0072] The second light source cover 22' may include a lamp body stopper member 222'. Due to the action of the lamp body stopper member 222', the second light source cover 22' and the base 4' can more easily determine the relative position during installation and be connected and fixed. Furthermore, the base 4' may include a second fall-prevention member 33' for cooperating with the lamp body stopper member 222'. Specifically, the lamp body stopper member 222' may be an extension toward the second fall-prevention member 33', the second fall-prevention member 33' may be an accommodating groove, and the lamp body stopper member 222' engages in the second fall-prevention member 33' to determine the relative position between the lamp body 3' and the second light source cover 22'. The second fall-prevention member 33' may further include a stopper member 331'. The position of the second optical cover 22' is regulated by the stopper action of the stopper member 331'. Specifically, the stopper member 331' can protrude toward the second light source cover 22'.

[0073] In another embodiment, the second light source cover 22' may include a lens structure that changes the emission angle of the light emitted from the third light source unit 113' and adjusts the emission angle of the light emitted through the reflecting surface 31'. Specifically, the lens structure allows more light to be emitted to the reflecting surface 31' and emitted after being reflected by the reflecting surface in a state where the thickness of the part closer to the outside of the LED lighting device is greater than the thickness of the part closer to the axis of the LED lighting device.

[0074] The first light-emitting unit 1111', the auxiliary light-emitting unit 1112', the second light-emitting unit 1121', and the third light-emitting unit 1131' may be turned on simultaneously, or may be turned on separately, that is, may be turned on in combination. For example, the first light-emitting unit 1111' may be turned on simultaneously with the auxiliary light-emitting unit 1112', and the second light-emitting unit 1121' and the third light-emitting unit 1131' may not be turned on, the auxiliary light-emitting unit 1112' may be turned on simultaneously with the second light-emitting unit 1121', and the first light-emitting unit 1111' and the third light-emitting unit 1131' may not be turned on, or may be turned on in any other combination. Users can adjust the light-emitting brightness and change the light-emitting irradiation range of the LED lighting device according to their needs through various light-emitting lighting methods.

[0075] As shown in Figs. 40, 41, 48, 49, 52 to 57, the lamp body 3' is connected and fixed to the base 4'. Specifically, the lamp body 3 may include a base connecting member 32'. The base 4' may include a lamp body connecting member 41'. The lamp body 3' and the base 4' are connected and fixed by the cooperation of the base connecting member 32 and the lamp body connecting member 41'. The lamp body connecting member 41' may be a protruding arm toward the lamp body 3', and the base connecting member 32 may have a slide groove structure, and the lamp body connecting member 41' moves by engaging with the slide groove of the base connecting member 32. The lamp body connecting member 41' may include a third retaining member 411' located at the tip of the lamp body connecting member 41'. The cross-sectional area of ​​the third retaining member 411' is larger than the cross-sectional area of ​​the boom of the lamp body connecting member 41'. The base connecting member 32' may further include an entrance portion 321' and a retaining chute 322'. The cross-sectional area of ​​the third anti-slip member 411' is smaller than the area of ​​the entrance portion 321', and the diameter of the third anti-slip member 411' is larger than the width of the groove of the anti-slip chute 322'. The third anti-slip member 411' can enter the entrance portion 321' of the base connecting member 32', slide along the anti-slip chute 322', and connect and fix the lamp body 3' to the base 4' so as not to fall off the anti-slip chute 322'. In another embodiment (not shown), the base connecting member 32' is a convex arm of the one-way base 4', the lamp body connecting member 41' has a chute structure, and the base connecting member 32' can move by engaging with the chute of the lamp body connecting member 41'. The base connecting member 32 can include a third anti-slip member 321' located at the tip of the base connecting member 32'. The cross-sectional area of ​​the third anti-slip member 321' is larger than the cross-sectional area of ​​the boom of the base connecting member 32'. The lamp body connecting member 41' may further include an entrance portion 412' and a retaining chute 411'. The cross-sectional area of ​​the third retaining member 321' is smaller than the area of ​​the entrance portion 412', and the diameter of the third retaining member 321' is larger than the groove width of the retaining chute 411'.The third anti-slip member 321' can enter the entrance portion 412' of the lamp body connecting member 41', slides along the anti-slip chute 411', and connects and fixes the lamp body 3' to the base 4' so as not to fall off the anti-slip chute 411'.

[0076] In other embodiments, a pendant rope (not shown) can be provided between the lamp body 3' and the base 4', and the connecting action of the pendant rope can prevent play from occurring between the lamp body connecting member 41' of the base 4' and the base connecting member 32' of the lamp body 3', which can prevent the lamp body 3' and the base 4' from being connected after the base 4' falls, thereby avoiding the occurrence of safety hazards.

[0077] As shown in Figures 40 and 41, the ceiling hook 5 is accommodated inside the lamp body 3'. The base 4' includes a light source module 11', and the light source can be disposed at the center of the light source plate. Compared to a design in which the lamp body 3' includes a light source module, the design in which the lamp body 3' and the base 4' are connected can effectively improve the problem of a dark area easily appearing in the center of the LED lighting fixture.

[0078] As shown in Figs. 52 to 57, the power supply module 12' may include a conductor 122'. The conductor 122' electrically connects the power supply module and the tabulator. The conductor 122 may be disposed at the center or approximately the center of the LED lighting device. The conductor 122 may be an elastic wire. The conductor 122' may have an outer shape arranged in a spiral. Since the conductor 122' is elastic and arranged in a spiral, it is easy to store the conductor 122' when connecting the base 4' and the lamp body 3'.

[0079] As shown in Figs. 40, 41, 50 and 51, the lamp body 3' may further include a hook stopper member 34'. The hook stopper member 34' is provided on the side close to the mounting surface of the lamp body 3', and furthermore, the hook stopper member 34' may be provided at the middle or approximately middle position of the lamp body 3'. The hook stopper member 34' is used to limit and determine the position of the hook ceiling 5 so that the installation is easier. The hook stopper member 34' may include a connecting member 342'. Through the connecting action of the connecting member 342', the hook stopper member 34' is connected and fixed to the lamp body 3'. The hook stopper member 34 may further include a reinforcing structure 341'. By providing the reinforcing structure 341', the structure of the hook stopper member 34' becomes stronger.

[0080] 60 to 64C, the present application provides an LED lighting device including a lamp cover 4 and a base 1, a first storage space being formed between the lamp cover 4 and the base 1, a light source unit 2 and a power supply unit 3 being provided in the first storage space, and the power supply unit 3 being electrically connected to the light source unit 2. Furthermore, a second storage space is formed between the base 1 and the light source unit 2, and the power supply unit 3 is located in the second storage space, and the LED lighting device does not require extra space for placing the power supply unit 3, so that the height of the LED lighting device can be reduced and packaging costs can be saved. In addition, when the power supply unit 3 is provided in the second storage space, it is possible to prevent the occurrence of dark areas due to the power supply unit 3 being provided in the light source unit 2.

[0081] The light source unit 2 includes a first light source assembly 21 and a second light source assembly 22, the first light source assembly 21 and the second light source assembly 22 have different light emission directions, the light emission direction (optical axis) of the first light source assembly 21 is parallel or substantially parallel to the central axis of the LED lighting device, and there is an angle between the light emission direction of the second light source assembly 22 and the central axis of the LED lighting device. The light emission direction is perpendicular or substantially perpendicular to the central axis of the LED lighting device.

[0082] The first light source assembly 21 emits light directly downward (the LED lighting device is attached to a horizontally installed ceiling), so that the area below the LED lighting device has a certain luminous flux and prevents a dark area from appearing directly below the LED lighting device. The first light source assembly 21 includes a first substrate 212 and a first light-emitting unit 214 located on the first substrate 212, the first light-emitting unit 214 includes a plurality of LED beads 204, the light-emitting direction (optical axis) of the first light source assembly 21 is perpendicular to the first substrate 212, and the optical axis of any of the LED beads 204 does not coincide with the central axis of the LED lighting device, or there is a gap between the optical axis of any of the LED beads 204 and the central axis of the LED lighting device, and in some cases, the distance between the optical axis of the LED beads 204 and the central axis of the LED lighting device is 1mm to 50mm.

[0083] The second light source assembly 22 is located around the first light source assembly 21 (the second light source assembly 22 is provided around the first light source assembly 21), and the second light source assembly 22 includes a second substrate 2221 and a plurality of second light emitting units 2201 including a second light emitting unit 224 located on the second substrate 2221, and the number of the second substrates 2221 is greater than the number of the first substrates 212. Specifically, the second light source assembly 22 surrounds the first light source assembly 21, and the first light source assembly 21 has a plurality of side edges 211, and one second light emitting unit 2201 is provided corresponding to each side edge 211. In some embodiments, the first substrate 212 has a plurality of side edges 211, and a second light emitting unit 2201 is provided corresponding to each side edge 211. The second substrate 2221 is connected to the first substrate 212, and the second substrate 2221 is connected to the first substrate 212 through the connection portion 23. When the light source unit 2 is bent, the connection portion 23 receives a force, and the form of the connection portion 23 changes from a straight line to a curve having a certain curvature, and the multiple second light emitting portions 2201 emit light in different directions. In some embodiments, the first substrate 212 is connected to the second substrate 2221 through the first connection portion 231 and the second connection portion 232, and there is a gap between the first connection portion 231 and the second connection portion 232, while the first substrate 212 and the second substrate 2221 are connected through two connection portions, and the connection is relatively stable, while there is a gap between the first connection portion 231 and the second connection portion 232, so that the stress during bending can be reduced, and the first connection portion 231 and the second connection portion 232 are easy to bend. When manufacturing the light source unit 2, for example, by removing excess scrap material on a single substrate and dividing it into the first substrate 212 and the second substrate 2221, it is possible to save substrate material while eliminating the need for additional wiring between the first substrate 212 and the second substrate 2221, thereby improving productivity.

[0084] On a plane perpendicular to the central axis of the LED lighting device, the projection of the first substrate 212 is approximately a polygon, such as a rectangle, a hexagon or an octagon, and the first light-emitting unit 214 located on the first substrate 212 includes a plurality of LED beads 202, and the LED beads 202 are arranged symmetrically with respect to the diagonal of the first substrate 212, for example, as shown in the figure, Sa is the diagonal of the first substrate 212, and Sa divides the first substrate 212 into a first region and a second region, the number of LED beads 202 in the first region is equal to the number of LED beads 202 in the second region, the distribution of the LED beads 202 in the first region is equal to the number of LED beads 202 in the second region, and the distribution of the beads 202 is symmetric with respect to S1.

[0085] At least a portion of the wiring of the LED beads 202 on the first substrate 212 is parallel to the side 211 of the first substrate 212, and this portion of the LED beads 202 is farther from the central axis of the LED lighting fixture or closer to the second substrate 2221 than the other beads 202, thereby preventing dark areas from appearing around the first substrate 212.

[0086] The second light source assembly 22 includes a second light emitting portion a1, a second light emitting portion a2, ..., a n where n is an integer, and the second light-emitting unit a n (Location plane) is parallel to the central axis of the LED lighting fixture, and the second light-emitting part a n is the second light emitting part a n+1 Adjacent to the second light emitting part a n is the second light emitting part a n+1 Unlike the light emitting direction of the first light emitting portion, the second light emitting portions 2201 emit light in different directions, so that the LED lighting device emits light in multiple directions, preventing the appearance of dark areas in the LED lighting device. n and the second light-emitting part a n+1 There is a gap between.

[0087] The second light-emitting unit 224 located on the second substrate 220 includes a plurality of LED beads 202, and the number of the LED beads 202 of the second light-emitting unit 224 is greater than the number of the LED beads 202 of the first light source assembly 21. The second light source assembly 22 is attached to a support 13 (described below) of the base 1, and heat generated by the second light source assembly 22 can be transferred to the support 13, while the first light source assembly 21 does not have a heat-conducting medium that can be directly contacted. Due to this setting, it is not easy to accumulate the heat of the first light source assembly 21 on the first substrate 212.

[0088] The base 1 includes a body 16 and a support 13 connected to the body 16, the body 16 includes a support surface 14, and the support 13 is located on the support surface 14. The support 13 extends in the direction of the first light source unit 21, and on a plane perpendicular to the central axis of the LED lighting device, the projection of the support 13 is a polygon, and the polygon is a rectangle, a pentagon, a hexagon, an octagon, etc., and a part of the light source unit 2 is attached to the support 13, and the heat generated by the light source unit 2 is directly transferred to the support 13 to prevent heat accumulation of the light source unit 2, and the second light source unit 22 is attached to the support 13. The base 1 is further provided with a first fixing unit for fixing the light source unit 2 and a second fixing unit for connecting the lamp cover 4, and the fixing means can adopt a method such as a snap, magnetic attraction, or screw. Specifically, the first fixing unit includes a plurality of first fixing portions 171 and second fixing portions 172, the second fixing unit includes a plurality of third fixing portions 173, the first fixing portions 171 and the second fixing portions 172 are respectively located on both sides of the support portion 13 and extend toward the first substrate 212, the second fixing portions 172 and the third fixing portions 173 are located on the same side of the support portion 13 and are located on the support surface 14, the second fixing portion 172 is closer to the support portion 13 than the third fixing portion 173, the first fixing portion 171 penetrates a first hole 215 on the second substrate 212 to fix the position of the light source portion 2, and the second fixing portion 172 penetrates a second hole of the insulating unit 6 (shown below) to fix the position of the insulating unit 6.

[0089] In one embodiment, the LED lighting fixture further includes an insulating unit 6 covering the first light source assembly 21 and the second light source assembly 22, on the one hand, some optical members (e.g. lenses) can be provided on the insulating unit to enhance the light emitting effect of the LED lighting fixture, and on the other hand, to prevent the installer from touching the light source element and causing electric shock or damaging the light source assembly by touching the light source assembly. The insulating unit 6 has a first part covering the first light source assembly 21 and a second part covering the second light source assembly 22, and the first part and the second part are configured to have different optical properties. For example, the first part can configure light transmission and light collection functions, and the second part can configure light transmission and / or light diffusion functions.

[0090] The lamp cover 4 includes an inner surface closer to the light source unit 2 than the outer surface, and an outer surface opposite to the inner surface. In some embodiments, the outer surface of the lamp cover 4 is provided with a plurality of protrusions (not shown) that can change the direction of light so that the LED lighting fixture has a good light distribution.

[0091] The lamp cover 4 includes a first zone 401 and a second zone 402 connected to the first zone 401, and the first zone 401 and the second zone 402 can be connected by a connection method such as peak welding. The first zone 401 is a light-transmitting area, and the second zone 402 is a light-opaque area, and most of the light emitted by the light source unit 2 (at least 60% of the luminous flux of the light emitted by the light source unit 2) is emitted from the LED lighting device through the first zone 401. When the LED lighting device is attached to a ceiling, for example, the second zone 402 faces the ceiling, or the first zone 401 is farther away from the ceiling than the second zone 402. Since the second zone 402 is close to the ceiling, the light emitted by the light source unit 2 is not refracted to the ceiling through the second zone 402, and the luminous flux of the area directly below the LED lighting device can be secured. Furthermore, since a portion of the light emitted by the light source unit 2 is reflected to the second zone 402 via the first zone 401, if the material of the second zone 402 is a highly reflective material, or by applying a reflective layer to the second zone 402, the light reflected by that portion to the second zone 402 can be re-reflected to the first area 401, thereby increasing the luminous flux of the LED lighting device.

[0092] In some embodiments, the LED lighting fixture further includes a third fixing unit for connecting the lamp cover 4 and the base 1, and the connection method can adopt methods such as snap, magnetic attraction, screw, etc. Specifically, the third fixing unit includes a third hole 15 and a third fixing part 173 located on the support surface 14, and a fourth fixing part 42 and a recess 43 located in the second zone 402, and when the lamp cover 4 is connected to the base 1, the fourth fixing part 42 passes through the third hole 15 on the support surface 14, the fourth fixing part 42 is located at one end of the third hole 15, and the lamp cover 4 is rotated, and the fourth fixing part 42 moves along the longitudinal direction of the third hole 15 to the second end of the third hole 15, and the recess 43 moves to a position corresponding to the third fixing part 173 and covers the third fixing part 173, and the third fixing part 173 and the recess 43 can be formed by concave-convex fitting to enhance the connection strength between the lamp cover 4 and the base 1.

[0093] The LED lighting device of the present application is realized in each of the examples as described above. Note that in each of the embodiments, for the same LED lighting device, the following statements are included: "the base includes a recess for accommodating the ceiling hook", "the power supply unit can be partially accommodated in the recess", "the power plate is stored in the recess", "the power plate is electrically connected to the light source unit and the ceiling hook via conductors / terminals", "PC material can be adopted for the power supply cover", "the power supply cover is made of metal", "the power supply cover can also adopt a method of combining metal material and PC material", "the power supply cover can include a support part for supporting", "a part of the support part is provided in the recess", "the support part supports the center part of the power supply cover", "the support part can have a protrusion of a recess in one direction", "the support part is installed to surround the ceiling hook", "the base includes a plurality of light source support parts", "the whole formed by the plurality of light source support parts is provided around the power supply cover", "the light source support part includes two surfaces", "the light source part is a first part having a light source Features such as "the first light-emitting unit may include a light-emitting unit", "the first light-emitting unit is located on a first surface of the light source support portion toward the center of the LED lighting device and emits light toward the center of the LED lighting device", "the first light-emitting unit includes a lamp plate including beads for emitting light", "the lamp beads may use the same color temperature or different color temperatures, thereby adjusting the color temperature of the light emitted by the entire lamp", "the spacing distances of the beads on each lamp plate are the same or approximately the same", "the first light-emitting unit and the second light-emitting unit are provided on both sides of the light source support portion", "the lamp plate and the lamp plate are respectively attached to the first surface and the second surface of the light source support portion", and "the lamp plate / lamp plate is fixed to the side of the light source support portion using an adhesive such as a thermally conductive adhesive" may actually be applied in one or more ways so as to implement only one feature or to implement multiple features simultaneously.

[0094] For example, the support portion is provided in a recess for supporting the center portion of the power supply cover.

[0095] For example, the base may include a plurality of bosses, and the whole formed with the plurality of bosses may be mounted around the power supply cover.

[0096] In other words, the above features can be used in any combination to improve LED lighting fixtures.

[0097] It should be understood that the above description is for illustrative purposes, not for limitation. Many embodiments and many applications other than the examples provided will become apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present specification should not be determined with reference to the above description, but with reference to the appended claims and the full scope of equivalents to which such claims are entitled. For comprehensive purposes, the disclosures, including all articles and referenced patent applications and publications, are incorporated herein by reference. Any omission of subject matter disclosed herein in the preceding claims is not intended to be a disclaimer of the content of that subject matter, and should not be construed as an indication that the inventors have not considered that subject matter to be part of the disclosed inventive subject matter.

Claims

1. a base including a light source support having a first surface and a second surface; a light source unit including a first light source assembly and a second light source assembly provided on the first surface and the second surface of the light source support unit, respectively; a power supply unit electrically connected to the light source unit; A cover is provided outside the light source unit and the power supply unit, The first light source assembly and the second light source assembly emit light in different directions.

2. The LED lighting fixture according to claim 1 , wherein the first light source assembly emits light toward a center of the LED lighting fixture.

3. The LED lighting device according to claim 1 , wherein the second light source assembly emits light toward the outside of the LED lighting device.

4. 4. The LED lighting fixture of claim 3, wherein the second light source assembly includes a second lamp plate having lamp beads.

5. 5. The LED lighting fixture according to claim 4, wherein a distance L1 between two adjacent lamp beads near both ends of the lamp plate is smaller than a distance L2 between two adjacent lamp beads at a middle position of the lamp plate.

6. 6. The LED lighting device according to claim 5, wherein the relationship between the distance L1 between the two adjacent beads at both ends and the distance L2 between the two adjacent beads at the most middle is 1:2≦L1:L2<1.

7. The LED lighting fixture according to claim 1 , wherein the first surface faces toward the center of the LED lighting fixture, and the second surface faces toward an edge of the LED lighting fixture.

8. 8. The LED lighting device according to claim 7, wherein the first surface forms an angle a with the base in a height direction of the LED lighting device, the angle being 90°<a<180°.

9. 8. The LED lighting device according to claim 7, wherein the second surface forms an angle a with the base in a height direction of the LED lighting device, the angle being 90°<a<180°.

10. 8. The LED lighting device according to claim 7, wherein the first light source assembly includes a first lamp plate, the second light source includes a second lamp plate, and the first lamp plate and the second lamp plate are respectively attached to the first surface and the second surface of the light source support part.

11. 11. The LED lighting fixture according to claim 10, wherein an angle c between the first lamp plate and the base satisfies 90[deg.]<c<180[deg.].

12. 11. The LED lighting fixture according to claim 10, wherein the angle d between the second lamp plate and the base is 90[deg.]<d<180[deg.].

13. The LED lighting fixture of claim 1 , wherein the base includes a reflective layer.

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