Light-emitting unit and lamp

Abstract

The utility model discloses a light-emitting unit and a lamp. The light-emitting unit comprises a first light-emitting assembly and a second light-emitting assembly. The first light-emitting assembly is provided with a first light-emitting element and a first lens, and light emitted by the first light-emitting element is refracted by the first lens and then emitted out. The second light-emitting assembly is provided with a second light-emitting element and a second lens, and light emitted by the second light-emitting element is refracted by the second lens and then is emitted out; wherein the first light-emitting component is arranged around the second light-emitting component; under the condition that the first light-emitting element and / or the second light-emitting element are / is controlled to emit light differently, the light-emitting unit can output light beams at different angles. According to the light-emitting unit, the first light-emitting component is arranged around the second light-emitting component, so that light rays emitted by the first light-emitting component and the second light-emitting component can be uniformly superposed, the light rays of the whole irradiation area are more uniform and consistent, and the phenomenon of disordered distribution of the light rays is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to lighting lamps and lanterns technical field especially, it relates to a light emitting unit and lamps and lanterns. BACKGROUND

[0002] With the development of the lighting market, people's demand for lamps and lanterns is increasing, and single-angle lamps and lanterns cannot meet people's daily lighting needs. Therefore, the prior art proposes a lamp with variable beam angle.

[0003] For example, the patent for invention with the patent authorization announcement number: CN118167981A discloses a LED lamp with variable beam angle, which comprises a driving power supply provided with a switch, so as to control the opening and closing of different lines connected to the driving power supply; the heat dissipation shell is installed with the driving power supply; the LED lamp panel is arranged with not less than two groups of LED lamp beads of lines, wherein the LED lamp beads of each group of lines are connected in series and parallel and then connected to the connection contact of the switch, and the required beam angle can be adjusted and switched by the switch; the single lens comprises not less than two groups of optical units of light emitting angles, and the optical units are matched with the positions of the LED lamp beads, and different angle beams are output when the light beams irradiate to different optical units; the LED light emitting line with three-way control is made on the LED lamp panel, and the single lens is optimized into two optical angles, and the beam angle is switched by the LED driving power supply control to achieve two or more irradiation beams.

[0004] Based on the above patent authorization announcement number retrieval, combined with the deficiencies in it, it is found that:

[0005] In the existing lamp, the LED lamp beads in different lines are alternately arranged on the LED lamp panel, and when the LED lamp beads in different lines are all on, it may cause the light to be distributed disorderly in the irradiation area. INVENTION CONTENTS

[0006] The utility model aims at overcoming the deficiency of prior art, provides a light emitting unit to solve the technical problem that the LED lamp beads in different lines in the existing lamp are alternately arranged on the LED lamp panel, and when the LED lamp beads in different lines are all on, it may cause the light to be distributed disorderly in the irradiation area.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] The utility model embodiment provides a light emitting unit, which comprises: a first light emitting assembly and a second light emitting assembly.

[0009] The first light emitting assembly is provided with a first light emitting element and a first lens, and the light emitted by the first light emitting element is refracted through the first lens and then emitted.

[0010] The second light-emitting component is provided with a second light-emitting element and a second lens. The light emitted by the second light-emitting element is refracted by the second lens and then emitted.

[0011] The first light-emitting component is arranged around the second light-emitting component; the first light-emitting angle of the first lens and the second light-emitting angle of the second lens are different, and the light-emitting unit can output beams of different angles when controlling the first light-emitting element and / or the second light-emitting element to emit light differently.

[0012] Furthermore, the first lens is disposed around the center of the second lens; the first lens includes an annular protrusion structure extending away from the first light-emitting element; the second lens includes a spherical protrusion structure extending away from the second light-emitting element.

[0013] Furthermore, the first light-emitting element comprises a plurality of elements, which are arranged in a ring and surround the second light-emitting element.

[0014] Furthermore, when the first light-emitting element emits light and the second light-emitting element emits light at a first brightness, the light-emitting unit emits light at a third light emission angle; wherein, the third light emission angle is different from the first light emission angle and the second light emission angle;

[0015] And / or, when the first light-emitting element emits light and the second light-emitting element emits light at a second brightness, the light-emitting unit emits light at a fourth light emission angle; wherein the fourth light emission angle is different from the first light emission angle and the second light emission angle, and the first brightness is different from the second brightness;

[0016] And / or, when the first light-emitting element emits light and the second light-emitting element does not emit light, the light-emitting unit emits light at a first light emission angle;

[0017] And / or, when the second light-emitting element emits light and the first light-emitting element does not emit light, the light-emitting unit emits light at a second emission angle.

[0018] Furthermore, the first brightness is less than the second brightness;

[0019] The first light emission angle is greater than the third light emission angle, the third light emission angle is greater than the fourth light emission angle, and the fourth light emission angle is greater than the second light emission angle.

[0020] Furthermore, the first light emission angle is within the range of [105°, 115°]; the second light emission angle is within the range of [40°, 50°]; the third light emission angle is within the range of [85°, 95°]; and the fourth light emission angle is within the range of [55°, 65°].

[0021] And / or,

[0022] The first brightness is 35%-65% of the rated brightness of the second light-emitting element, and the second brightness is the rated brightness.

[0023] Furthermore, there are 12 first light-emitting elements and 4 second light-emitting elements.

[0024] This utility model embodiment also provides a lamp, including multiple light-emitting units and a control module as described above;

[0025] The control module is used to control the different light-emitting operations of the first light-emitting element and / or the second light-emitting element, so as to enable the light-emitting unit to output beams of different angles.

[0026] Furthermore, the lamp also includes a lamp panel, and the light-emitting unit is mounted on the lamp panel. The light-emitting unit is arranged around the center of the lamp panel and includes at least two rings of light-emitting units, with adjacent rings of light-emitting units staggered in the radial direction.

[0027] Furthermore, the control module also includes a switching circuit, which is electrically connected to all the first and second light-emitting elements of each light-emitting unit;

[0028] The switching circuit includes a first switching switch, a second switching switch, and a third switching switch;

[0029] When the first switching switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to emit light at the second brightness.

[0030] When the second switching switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to emit light at the first brightness.

[0031] When the third switching switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to turn off.

[0032] The light-emitting unit of this invention arranges the first light-emitting component around the second light-emitting component, so that the light emitted by the first light-emitting component and the second light-emitting component can be evenly superimposed, making the light in the entire irradiation area more uniform and consistent, which helps to reduce the phenomenon of random light distribution.

[0033] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model more obvious and easy to understand, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0034] Figure 1 This is a first perspective view of the light-emitting unit in an embodiment of the present invention;

[0035] Figure 2 This is a second perspective view of the light-emitting unit in an embodiment of the present invention;

[0036] Figure 3 This is a top view of the light-emitting unit in an embodiment of the present invention;

[0037] Figure 4 This is a bottom view of the light-emitting unit in an embodiment of the present invention;

[0038] Figure 5 This is a side view of the light-emitting unit in an embodiment of the present invention;

[0039] Figure 6 This is a cross-sectional view of the light-emitting unit in an embodiment of the present invention;

[0040] Figure 7 This is an optical simulation diagram of the light-emitting unit emitting light at the first emission angle in an embodiment of the present invention;

[0041] Figure 8 This is a data diagram showing the light-emitting unit emitting light at the first emission angle in an embodiment of this utility model.

[0042] Figure 9 This is an optical simulation diagram of the light-emitting unit emitting light rays at the second emission angle in an embodiment of this utility model.

[0043] Figure 10 This is a data diagram showing the light-emitting unit emitting light at the second emission angle in an embodiment of this utility model.

[0044] Figure 11 This is a simulation diagram of the light emitted from the light-emitting unit at the third light-emitting angle in an embodiment of this utility model.

[0045] Figure 12 This is a data diagram showing the light-emitting unit emitting light at the third emission angle in an embodiment of this utility model.

[0046] Figure 13 This is a simulation diagram of the light emitted from the light-emitting unit at the fourth light-emitting angle in an embodiment of this utility model.

[0047] Figure 14This is a data diagram showing the light-emitting unit emitting light at the fourth emission angle in an embodiment of this utility model.

[0048] Figure 15 This is a first perspective view of the lamp fixture according to an embodiment of the present utility model;

[0049] Figure 16 This is a schematic diagram showing the connection between the lamp board and multiple light-emitting units in a lamp fixture according to an embodiment of this utility model;

[0050] Figure 17 This is a second perspective view of the lamp fixture according to an embodiment of the present utility model;

[0051] Figure 18 This is a top view of the lamp fixture according to an embodiment of the present utility model;

[0052] Figure 19 This is a bottom view of the lamp fixture according to an embodiment of the present utility model;

[0053] Figure 20 for Figure 19 Enlarged view of part A;

[0054] Figure 21 This is a schematic diagram of the switching circuit of the lamp in an embodiment of this utility model.

[0055] Explanation of reference numerals in the attached figures:

[0056] 1. Light-emitting unit; 11. First light-emitting assembly; 111. First light-emitting element; 112. First lens; 1121. Annular protrusion structure; 12. Second light-emitting assembly; 121. Second light-emitting element; 122. Second lens; 1221. Spherical protrusion structure;

[0057] 2. Lighting fixture; 21. Light panel; 22. Housing; 221. Heat sink fins; 23. Power supply. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0059] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0060] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "resin", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0062] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0063] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0065] Please see the appendix Figure 1 and Figure 2 , Figure 1 This is a first perspective view of the light-emitting unit 1 according to an embodiment of the present invention. Figure 2 This is a second perspective view of the light-emitting unit 1 according to an embodiment of the present invention. The present invention provides a light-emitting unit 1, comprising: a first light-emitting component 11 and a second light-emitting component 12; the first light-emitting component 11 is provided with a first light-emitting element 111 and a first lens 112, the light emitted by the first light-emitting element 111 is refracted by the first lens 112 and then emitted; the second light-emitting component 12 is provided with a second light-emitting element 121 and a second lens 122, the light emitted by the second light-emitting element 121 is refracted by the second lens 122 and then emitted; wherein, the first light-emitting component 11 is arranged around the second light-emitting component 12; the first light-emitting angle of the first lens 112 and the second light-emitting angle of the second lens 122 are different, and by controlling the first light-emitting element 111 and / or the second light-emitting element 121 to emit different light, the light-emitting unit 1 can output beams of different angles.

[0066] In some embodiments, the first lens 112 and the second lens 122 can be different parts of the same lens assembly, that is, the first lens 112 and the second lens 122 are an integral structure. Therefore, in this embodiment, the light-emitting unit 1 does not require the first lens 112 and the second lens 122 to be aligned and assembled during the assembly stage; it only requires the first light-emitting element 111 and the second light-emitting element 121 to be installed at corresponding positions on the lens assembly having the first lens 112 and the second lens 122, reducing the assembly difficulty of the light-emitting unit 1 and improving assembly efficiency. In other embodiments, the first lens 112 and the second lens 122 can also be independent separate structures.

[0067] In some embodiments, the first light-emitting element 111 and the second light-emitting element 121 can be LED beads. Optionally, the first light-emitting element 111 and the second light-emitting element 121 are configured with the same LED beads, that is, the first light-emitting element 111 and the second light-emitting element 121 have the same operating voltage, rated power, rated brightness and other parameters.

[0068] In some embodiments, the first light-emitting component 11 is disposed around the second light-emitting component 12, and the central axes of the first light-emitting component 11 and the second light-emitting component 12 coincide. It is understood that by distributing the first light-emitting component 11 around the second light-emitting component 12, the light emitted by the first light-emitting component 11 and the second light-emitting component 12 can be uniformly superimposed, making the light in the entire illumination area more uniform and consistent, which helps to reduce the phenomenon of random light distribution.

[0069] As an example, Figure 1 The first light-emitting component 11 is ring-shaped, thus surrounding the second light-emitting component 12. However, this application is not limited to this. The first light-emitting component 11 can also be square, rectangular, circular, or other shapes, which can be selected as needed.

[0070] A complete surround can mean that the first light-emitting component 11 completely encircles the second light-emitting component 12. This means that the first light-emitting component 11 can be seen surrounding the second light-emitting component 12 from any side. For example, the second light-emitting component 12 is a circular LED, and the first light-emitting component 11 is a ring-shaped LED strip. This ring-shaped LED strip completely surrounds the circular LED, forming a perfect circle without any breaks or missing parts. This is an example of a complete surround. A partial surround can also mean that the first light-emitting component 11 only surrounds a part of the second light-emitting component 12, not all of it. This means that the first light-emitting component 11 can be seen from some directions of the second light-emitting component 12, but not from other directions. For example, the second light-emitting component 12 is a circular LED, and the first light-emitting component 11 is a semi-circular LED strip. The semi-circular LED strip only covers half of the circular LED. The semi-circular LED strip can be seen from one side of the circular LED, but not from the other side. This is an example of a partial surround. For example, the second light-emitting component 12 is a rectangular LED panel, while the first light-emitting component 11 consists of three connected rectangular LED strips that only wrap around three sides of the rectangular LED panel (such as the top, left, and right sides), but not the bottom. This is also an example of partial wrapping.

[0071] It should be explained that the first lens 112 causes the light emitted by the first light-emitting element 111 to be emitted at a preset first emission angle after refraction. The setting of the first emission angle can be achieved by designing parameters such as the curvature, transmittance, and refractive index of the first lens 112, which will not be elaborated here. Similarly, the second lens 122 causes the light emitted by the second light-emitting element 121 to be emitted at a preset second emission angle after refraction. The setting of the second emission angle can be achieved by designing parameters such as the curvature, transmittance, and refractive index of the second lens 122, which will not be elaborated here.

[0072] Furthermore, the first lens 112 is arranged around the center of the second lens 122. It can be understood that, based on the refraction of light by the lens and the propagation law of light in the lens, since the first lens 112 is arranged around the center of the second lens 122, the light rays from the two sets of lenses can interweave with each other in the illumination area, thereby reducing the phenomenon of light overlap and clutter, and achieving a more uniform light distribution.

[0073] Specifically, please refer to Figures 3 to 6 , Figure 3 This is a top view of the light-emitting unit 1 in an embodiment of the present invention. Figure 4 This is a bottom view of the light-emitting unit 1 in an embodiment of this utility model. Figure 5 This is a side view of the light-emitting unit 1 according to an embodiment of the present invention. Figure 6 This is a cross-sectional view of the light-emitting unit 1 according to an embodiment of the present invention. In this embodiment, the first lens 112 includes an annular protrusion structure 1121 that extends away from the first light-emitting element 111. The first light-emitting element 111 is mounted in an annular groove with the protrusion direction opposite to that of the annular protrusion structure 1121. The annular protrusion structure 1121 allows light to form a wider beam angle after refraction. The second lens 122 includes a spherical protrusion structure 1221 that extends away from the second light-emitting element 121. The second light-emitting element 121 is mounted in a spherical groove with the protrusion direction opposite to that of the spherical protrusion structure 1221. The spherical protrusion structure 1221 can achieve a more concentrated beam output.

[0074] Furthermore, the first light-emitting element 111 includes a plurality of first light-emitting elements 111, which are arranged in a ring and surround the second light-emitting element 121.

[0075] In some embodiments, a plurality of first light-emitting elements 111 may be spaced apart in annular grooves with opposite protrusion directions of the annular protrusion structure 1121. Preferably, the plurality of first light-emitting elements 111 may be spaced apart in annular grooves with opposite protrusion directions of the annular protrusion structure 1121. It is understood that the annulus formed by the plurality of first light-emitting elements 111 should be similar to or the same as the annulus of the annular protrusion structure 1121.

[0076] In some embodiments, at least one second light-emitting element 121 is provided, and the second light-emitting element 121 corresponds one-to-one with the spherical protrusion structure 1221. In some embodiments, when there is only one second light-emitting element 121, the center of the ring formed by the plurality of first light-emitting elements 111 coincides with the center of the second light-emitting element 121. In some embodiments, when there are multiple second light-emitting elements 121, the multiple second light-emitting elements 121 surround the entire ring formed by the multiple first light-emitting elements 111, and the center of the ring formed by the multiple first light-emitting elements 111 coincides with the center of the ring formed by the multiple second light-emitting elements 121. In some embodiments, when there are multiple second light-emitting elements 121, the multiple second light-emitting elements 121 are equally spaced and surround the ring.

[0077] In some embodiments, the number of first light-emitting elements 111 is greater than the number of second light-emitting elements 121.

[0078] Furthermore, under different light emission conditions of the first light-emitting element 111 and / or the second light-emitting element 121, the light-emitting unit 1 can output light beams at different angles. The following are four different implementation methods as examples. However, it should be noted that the following are only a limited number of examples, and the number of examples does not represent all the implementation methods that the light-emitting unit 1 of this application can achieve.

[0079] First implementation method: such as Figure 7 and Figure 8 As shown, Figure 7 This is an optical simulation diagram of the light-emitting unit 1 emitting light rays at the first emission angle according to an embodiment of this utility model. Figure 8 This is a data diagram showing the light-emitting unit 1 emitting light at the first emission angle according to an embodiment of the present invention. When the first light-emitting element 111 emits light and the second light-emitting element 121 does not emit light, the light-emitting unit 1 emits light at the first emission angle. Optionally, the first light-emitting element 111 emits light at its rated brightness.

[0080] in, Figure 7 In the diagram, the circumferential coordinates represent the light emission angle, and the radial coordinates represent the light intensity value. Figure 7 As can be seen, when the simulated light-emitting unit 1 emits light at the first emission angle, the maximum light intensity is 138.55 cd (candela), and the angle at 50% light intensity is approximately 110°. Figure 8 In the diagram, a slicing angle of 0.0000 represents the horizontal plane, and a slicing angle of 90.000 represents the vertical plane. Figure 8As can be seen, when the simulated light-emitting unit 1 emits light at the first emission angle, the emission angle on the horizontal plane is 111.42°, and the emission angle on the vertical plane is 111.40°. It should be noted that... Figure 7 This only represents one optical simulation result that can be achieved by the light-emitting unit 1 of this application. Figure 8 This only represents a single simulation result of the light-emitting unit 1 of this application, and does not represent all implementations of the light-emitting unit 1 of this application emitting light at the first light emission angle.

[0081] The second implementation method: as follows Figure 9 and Figure 10 As shown, Figure 9 This is an optical simulation diagram of the light-emitting unit 1 emitting light rays at the second emission angle according to an embodiment of this utility model. Figure 10 This is a data diagram showing the light-emitting unit 1 emitting light at the second emission angle according to an embodiment of the present invention. When the second light-emitting element 121 emits light and the first light-emitting element 111 does not emit light, the light-emitting unit 1 emits light at the second emission angle.

[0082] in, Figure 9 In the diagram, the circumferential coordinates represent the light emission angle, and the radial coordinates represent the light intensity value. Figure 9 As can be seen, when the simulated light-emitting unit 1 emits light at the second emission angle, the maximum light intensity is 72.765 cd, and the angle at which the light intensity reaches 50% is approximately 50°. From... Figure 10 As can be seen, when the simulated light-emitting unit 1 emits light at the second emission angle, the emission angle on the horizontal plane is 49.204°, and the emission angle on the vertical plane is 48.716°. It should be noted that... Figure 9 This only represents one optical simulation result that can be achieved by the light-emitting unit 1 of this application. Figure 10 This only represents a single simulation result that the light-emitting unit 1 of this application can achieve, and does not represent all implementations of the light-emitting unit 1 of this application emitting light at the second light emission angle.

[0083] The third implementation method: such as Figure 11 and Figure 12 As shown, Figure 11 This is an optical simulation diagram of the light-emitting unit 1 emitting light at the third emission angle according to an embodiment of the present invention. Figure 12 This is a data diagram showing the light-emitting unit 1 emitting light at a third emission angle according to an embodiment of the present invention. When the first light-emitting element 111 emits light and the second light-emitting element 121 emits light at a first brightness, the light-emitting unit 1 emits light at a third emission angle; wherein the third emission angle is different from the first and second emission angles. The first light-emitting element 111 emits light at its rated brightness.

[0084] in, Figure 11In the diagram, the circumferential coordinates represent the light emission angle, and the radial coordinates represent the light intensity value. Figure 11 As can be seen, when the simulated light-emitting unit 1 emits light at the third emission angle, the maximum light intensity is 185.38 cd, and the angle at which the light intensity reaches 50% is approximately 90°. Among these, from... Figure 12 As can be seen, when the simulated light-emitting unit 1 emits light at the third emission angle, the emission angle on the horizontal plane is 92.387°, and the emission angle on the vertical plane is 92.402°. It should be noted that... Figure 11 This only represents one optical simulation result that can be achieved by the light-emitting unit 1 of this application. Figure 12 This only represents a single simulation result that the light-emitting unit 1 of this application can achieve, and does not represent all implementations of the light-emitting unit 1 of this application emitting light at the third light emission angle.

[0085] The fourth implementation method: such as Figure 13 and Figure 14 As shown, Figure 13 This is an optical simulation diagram of the light-emitting unit 1 emitting light at the fourth emission angle according to an embodiment of the present invention. Figure 14 This is a data diagram showing the light-emitting unit 1 emitting light at a fourth emission angle according to an embodiment of the present invention. When the first light-emitting element 111 emits light and the second light-emitting element 121 emits light at a second brightness, the light-emitting unit 1 emits light at a fourth emission angle; wherein the fourth emission angle is different from the first, second, and third emission angles, and the first brightness is different from the second brightness. The first light-emitting element 111 emits light at its rated brightness.

[0086] in, Figure 13 In the diagram, the circumferential coordinates represent the light emission angle, and the radial coordinates represent the light intensity value. Figure 13 As can be seen, when the simulated light-emitting unit 1 emits light at the fourth emission angle, the maximum light intensity is 331.07 cd, and the angle at which the light intensity reaches 50% is approximately 60°. Among these, from... Figure 14 As can be seen, when the simulated light-emitting unit 1 emits light at the fourth emission angle, the emission angle on the horizontal plane is 64.479°, and the emission angle on the vertical plane is 65.422°. It should be noted that... Figure 13 This only represents one optical simulation result that can be achieved by the light-emitting unit 1 of this application. Figure 14 This only represents a single simulation result of the light-emitting unit 1 of this application, and does not represent all implementations of the light-emitting unit 1 of this application emitting light at the fourth light emission angle.

[0087] It should be explained that the light emission angle refers to the diffusion angle of light emitted from a light source or LED, defined as the angle at 50% luminous intensity, that is, the angle between the beam centerline and the point where the light intensity decreases to 50% of the maximum luminous intensity at the centerline. In this application, when the light-emitting unit 1 emits a beam at the third and fourth light emission angles, both the first light-emitting element 111 in the first light-emitting component 11 and the second light-emitting element 121 in the second light-emitting component 12 are luminous, differing only in the brightness of the second light-emitting element 121. By changing the brightness of the second light-emitting element 121, the maximum and regional light intensities of the overlapping area of ​​the beams from the first and second light-emitting elements 111 are changed, thereby changing the light emission angle of the light-emitting unit 1. It can be understood that, in the case where both the first and second light-emitting elements 111 and 121 are luminous, this application achieves the switching between the third and fourth light emission angles of the light-emitting unit 1 by changing the brightness of the second light-emitting element 121, thus improving the utilization rate of the light-emitting elements in the light-emitting unit 1.

[0088] It is understood that, compared to the prior art, the light-emitting unit 1 of this application, in addition to being able to control the first light-emitting element 111 or the second light-emitting element 121 to emit light at a first light emission angle or a second light emission angle individually, also has the function of being able to control both the first light-emitting element 111 and the second light-emitting element 121 to emit light at a third light emission angle or a fourth light emission angle, thus providing more diverse light angle selection. In practical applications, the light-emitting unit 1 can be selected to have different selectable light emission angles.

[0089] Specifically, the first brightness is less than the second brightness; the first light emission angle is greater than the third light emission angle, the third light emission angle is greater than the fourth light emission angle, and the fourth light emission angle is greater than the second light emission angle.

[0090] In some embodiments, the first light emission angle is in the range of [105°, 115°]; the second light emission angle is in the range of [40°, 50°]; the third light emission angle is in the range of [85°, 95°]; and the fourth light emission angle is in the range of [55°, 65°].

[0091] In some embodiments, the first light emission angle is 110°, the second light emission angle is 45°, the third light emission angle is 90°, and the fourth light emission angle is 60°.

[0092] In some embodiments, the light-emitting unit 1 of this application is applied to industrial and mining lamps. Currently, the common operating angles of industrial and mining lamps on the market include 60°, 90°, and 110°. In this embodiment, the light-emitting unit 1 of this application can have three switchable light-emitting angles, namely a first light-emitting angle of 110°, a third light-emitting angle of 90°, and a fourth light-emitting angle of 60°, to meet the light-emitting angle requirements of industrial and mining lamps in existing application scenarios.

[0093] In some embodiments, the first brightness is 35%-65% of the rated brightness of the second light-emitting element 121, and the second brightness is the rated brightness. It is understood that in this embodiment, the brightness of the second light-emitting element 121 can be controlled to be the first brightness or the second brightness by controlling the amount of electrical energy supplied to the second light-emitting element 121; the specific settings are not described in detail here.

[0094] In some embodiments, 12 first light-emitting elements 111 and 4 second light-emitting elements 121 are provided. In some embodiments, the 12 first light-emitting elements 111 surround to form a first ring, and the 4 second light-emitting elements 121 surround to form a second ring, with the first ring enclosing the second ring and the first ring and the second ring having the same central axis. In some embodiments, the 12 first light-emitting elements 111 are evenly arranged circumferentially along the first ring, and the 4 second light-emitting elements 121 are evenly arranged circumferentially along the second ring.

[0095] In this embodiment, when the light-emitting unit 1 emits light at the first light emission angle, all 12 first light-emitting elements 111 emit light, while the 4 second light-emitting elements 121 do not emit light. At this time, the utilization rate of the light-emitting elements in the light-emitting unit 1 is 75%. When the light-emitting unit 1 emits light at the third light emission angle, all 12 first light-emitting elements 111 emit light, and the 4 second light-emitting elements 121 emit light at a first brightness, which is 40% of the rated brightness of the second light-emitting elements 121. At this time, the utilization rate of the light-emitting unit 1 is 85%. When the light-emitting unit 1 emits light at the fourth light emission angle, all 12 light-emitting elements emit light, and the 4 second light-emitting elements 121 emit light at a second brightness, which is the rated brightness of the second light-emitting elements 121. At this time, the utilization rate of the light-emitting unit 1 is 100%. It can be understood that the utilization rate of the light-emitting unit 1 is greater than 50% in all three light emission angles (first, third, and fourth), significantly improving the utilization rate of the light-emitting elements.

[0096] Please see Figure 15 , Figure 15This is a first perspective view of the lamp 2 according to an embodiment of the present invention. The present invention also provides a lamp 2, including multiple light-emitting units 1 as described above and a control module; the control module is used to control the different light-emitting operations of the first light-emitting element 111 and / or the second light-emitting element 121, so as to realize that the light-emitting unit 1 outputs beams of different angles.

[0097] In some embodiments, the lamp 2 of this application is an industrial or mining lamp, also known as a high-bay lamp. In some embodiments, the lamp 2 of this application may also be a household lamp or a commercial lamp.

[0098] It is understood that the luminaire 2 of this application, by integrating multiple light-emitting units 1, ensures that at least one of the first light-emitting element 111 and the second light-emitting element 121 in each light-emitting unit 1 emits light regardless of the light emission angle. This not only improves the lighting quality but also enhances the atmosphere and visual effect of the scene. Furthermore, the use of multiple light-emitting units 1 integrating the first light-emitting element 111 and the second light-emitting element 121 in this application provides greater flexibility in layout compared to the traditional method of alternating LED beads on different circuits on the LED light panel 21.

[0099] In some embodiments, such as Figure 15 , Figure 16 as well as Figure 18 As shown, Figure 16 This is a schematic diagram showing the connection between the lamp plate 21 and multiple light-emitting units 1 in the lamp 2 according to an embodiment of this utility model. Figure 18 This is a top view of the lamp 2 according to an embodiment of the present invention. In this embodiment, the lamp 2 also includes a lamp plate 21, and a light-emitting unit 1 is mounted on the lamp plate 21. The light-emitting unit 1 is arranged around the center of the lamp plate 21, and includes at least two rings of light-emitting units 1. The light-emitting units 1 of adjacent rings are staggered in the radial direction.

[0100] Understandably, staggering the light-emitting units 1 in adjacent rings prevents excessive concentration of light in one direction, thus achieving a more uniform lighting effect. Specifically, the light emitted by the light-emitting units 1 in adjacent rings overlaps in space, and due to the staggered arrangement, the light distribution is more uniform, thereby reducing differences in brightness.

[0101] In some embodiments, such as Figure 17 , Figure 19 As shown, Figure 17 This is a second perspective view of lamp 2 according to an embodiment of the present invention. Figure 19This is a bottom view of the lamp 2 according to an embodiment of the present invention. The lamp 2 also includes a housing 22, with a lamp plate 21 mounted on it. The housing 22 is provided with heat dissipation fins 221. During operation, the heat generated by the light-emitting unit 1 and the lamp plate 21 can be dissipated through the housing 22 and the heat dissipation fins 221, effectively improving the lifespan of the lamp 2. In some embodiments, the lamp 2 also includes a power supply 23, which is mounted on the housing 22. Thus, the lamp 2 of this application can be powered by its own power supply 23 to emit light, solving the problem of only being able to operate with external power.

[0102] In some embodiments, the control module further includes a switching circuit electrically connected to all the first light-emitting elements 111 and the second light-emitting elements 121 of each light-emitting unit 1. Preferably, the switching circuit is disposed on the lamp board 21. In some embodiments, the switching circuit includes a first switching switch, a second switching switch, and a third switching switch. When the first switching switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to emit light at a second brightness; when the second switching switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to emit light at a first brightness; when the third switching switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to not emit light.

[0103] In some embodiments, such as Figure 20 and Figure 21 As shown, Figure 20 for Figure 19 Enlarged view of part A, Figure 21 This is a schematic diagram of the switching circuit of lamp 2 in an embodiment of this utility model. Figure 20 It includes a user-operable control component K. Figure 21 The switching circuit includes a first light-emitting element group 30 composed of all the first light-emitting elements 111 in the lamp 2, a second light-emitting element group 40 composed of all the second light-emitting elements 121 in the lamp 2, a first switching switch S1, a second switching switch S2, a third switching switch S3, an operating element K, and a resistor group 50. The operating element K is movably disposed between the first switching switch S1, the second switching switch S2, and the third switching switch S3, and the resistor group 50 is electrically connected between the second light-emitting element group 40 and the second switching switch S2. It should be noted that... Figure 21 This is only one possible implementation of the switching circuit in lamp 2 of this application. The switching circuit in lamp 2 of this application can also be implemented by other circuit designs. The following describes three implementations of the switching circuit that can switch the light output angle of lamp 2 using a limited number of examples.

[0104] First implementation: When the user operates the operating component K to open the first switching switch S1, the first light-emitting element group 30 is energized, the second light-emitting element group 40 is energized, and the resistor group 50 is not energized. As a result, all the first light-emitting elements 111 in the first light-emitting element group 30 emit light, and all the second light-emitting elements 121 in the second light-emitting element group 40 emit light at the second brightness. At this time, the lamp 2 of this application emits light at the fourth light emission angle.

[0105] The second implementation: When the user operates the operating component K to open the second switching switch S2, the first light-emitting element group 30 is energized, the second light-emitting element group 40 is energized, and the resistor group 50 is energized. Consequently, all the first light-emitting elements 111 in the first light-emitting element group 30 emit light, and all the second light-emitting elements 121 in the second light-emitting element group 40 emit light at a first brightness. At this time, the lamp 2 of this application emits light at a third light emission angle. It can be understood that in this embodiment, the resistor group 50 plays a role in regulating the operating power of the second light-emitting element group 40. When the resistor group 50 is energized, the operating power of the second light-emitting element group 40 decreases; when the resistor group 50 is not energized, the second light-emitting element group 40 operates at its rated power.

[0106] The third implementation method: When the user operates the operating component K to open the third switching switch S3, the first light-emitting element group 30 is energized, the second light-emitting element group 40 is not energized, and the resistor group 50 is not energized. As a result, all the first light-emitting elements 111 in the first light-emitting element group 30 emit light, and all the second light-emitting elements 121 in the second light-emitting element group 40 do not emit light. At this time, the lamp 2 of this application emits light at the first light emission angle.

[0107] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A light-emitting unit, characterized in that: The light-emitting unit includes a first light-emitting component and a second light-emitting component; The first light-emitting component is provided with a first light-emitting element and a first lens, and the light emitted by the first light-emitting element is refracted by the first lens and then emitted. The second light-emitting component is provided with a second light-emitting element and a second lens. The light emitted by the second light-emitting element is refracted by the second lens and then emitted. The first light-emitting component is arranged around the second light-emitting component; the first light-emitting angle of the first lens and the second light-emitting angle of the second lens are different, and the light-emitting unit can output beams of different angles when controlling the first light-emitting element and / or the second light-emitting element to emit light differently.

2. The light-emitting unit according to claim 1, characterized in that: The first lens is disposed around the center of the second lens; the first lens includes an annular protrusion structure extending away from the first light-emitting element; the second lens includes a spherical protrusion structure extending away from the second light-emitting element.

3. The light-emitting unit according to claim 1 or 2, characterized in that: The first light-emitting element includes multiple first light-emitting elements, which are arranged in a ring and surround the second light-emitting element.

4. The light-emitting unit according to claim 1, characterized in that: When the first light-emitting element emits light and the second light-emitting element emits light at a first brightness, the light-emitting unit emits light at a third light emission angle; wherein, the third light emission angle is different from the first light emission angle and the second light emission angle; And / or, when the first light-emitting element emits light and the second light-emitting element emits light at a second brightness, the light-emitting unit emits light at a fourth light emission angle; wherein the fourth light emission angle is different from the first light emission angle and the second light emission angle, and the first brightness is different from the second brightness; And / or, when the first light-emitting element emits light and the second light-emitting element does not emit light, the light-emitting unit emits light at a first light emission angle; And / or, when the second light-emitting element emits light and the first light-emitting element does not emit light, the light-emitting unit emits light at a second emission angle.

5. A light-emitting unit according to claim 4, characterized in that: The first brightness is less than the second brightness; The first light emission angle is greater than the third light emission angle, the third light emission angle is greater than the fourth light emission angle, and the fourth light emission angle is greater than the second light emission angle.

6. A light-emitting unit according to claim 4, characterized in that: The first light emission angle is in the range of [105°, 115°]; the second light emission angle is in the range of [40°, 50°]; the third light emission angle is in the range of [85°, 95°]; and the fourth light emission angle is in the range of [55°, 65°]. And / or, The first brightness is 35%-65% of the rated brightness of the second light-emitting element, and the second brightness is the rated brightness.

7. A light-emitting unit according to claim 3, characterized in that: The first light-emitting element has 12 components, and the second light-emitting element has 4 components.

8. A lamp, characterized in that, Includes the light-emitting unit and control module as described in any one of claims 1-7; The control module is used to control the different light-emitting operations of the first light-emitting element and / or the second light-emitting element, so as to enable the light-emitting unit to output beams of different angles.

9. A lamp according to claim 8, characterized in that, The luminaire also includes a lamp panel, and the light-emitting unit is mounted on the lamp panel. The light-emitting unit is arranged around the center of the lamp panel and includes at least two rings of light-emitting units, with adjacent rings of light-emitting units staggered in the radial direction.

10. A lamp according to claim 8, characterized in that, The control module further includes a switching circuit, which is electrically connected to all the first and second light-emitting elements of each light-emitting unit; The switching circuit includes a first switching switch, a second switching switch, and a third switching switch; When the first switching switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to emit light at the second brightness. When the second switching switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to emit light at the first brightness. When the third switching switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to turn off.

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