Lens and lighting lamp

Abstract

The present application relates to the technical field of illumination, and provides a lens and a lighting lamp. The lens of the present application comprises: a lens body, a light source accommodating recess formed on one side of the lens body and used for accommodating a light source, and a resistor accommodating recess located outside the light source accommodating recess and used for accommodating a resistor. A light incident surface is formed on the inner surface of the light source accommodating recess, and a light emitting surface is formed on the other side of the lens body opposite to the light source accommodating recess. According to the lens of the present application, by providing the resistor accommodating recess used for accommodating a resistor, the resistor is accommodated in the lens body, there is no need to mount an additional protection structure, the size of the whole lamp is reduced, and the problem in the prior art that the size of the lamp is increased due to the fact that a structure for mounting a resistor and preventing an electric shock is additionally arranged on the lamp is effectively solved.

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] The present application claims priority of the Chinese Patent Application No. 202321185355.3, filed on May 16, 2023, the disclosure of which is incorporated herein by reference in its entirety as part of the present application.TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of illumination, in particular to a lens and a lighting lamp.BACKGROUND

[0003] Currently, Light Emitting Diode (LED) lamp beads are commonly used in lighting lamps. LED lamp beads are electronic components that operate with low current and low voltage, and excessive operating current can easily cause the LED lamp beads to overheat and be damaged. To protect the LED lamp beads, the LED lamp beads are usually connected in series with a resistor to limit the operating current. To set the resistor and meet safety regulations, additional structures for installing the resistor and preventing electric shock often need to be disposed on the lighting lamp, which increases the size of the lamp.

[0004] In view of this, it is indeed necessary to propose a new lighting lamp to solve the above problem.SUMMARY

[0005] The present application provides a lens and a lighting lamp to address the problem in the prior art where additional structures for installing resistors and preventing electric shock have to be disposed on lighting lamps, which problem leads to a lamp size to be increased.

[0006] In the first aspect, the present application provides a lens, which includes: a lens body, a light source accommodating groove formed on one side of the lens body and configured for accommodating the light source, and resistor accommodating grooves located on an outer side of the light source accommodating groove and configured for accommodating a resistor;

[0007] an inner surface of the light source accommodating groove forms a light incident surface, and another side of the lens body opposite to the light source accommodating groove forms a light exiting surface.

[0008] According to the lens provided by the present application, at least one side of each of the resistor accommodating grooves is configured with a reflective surface disposed opposite to the light exiting surface, and the reflective surface is concave toward a direction of the light exiting surface.

[0009] According to the lens provided by the present application, the reflective surface is provided with quadrangular pyramids arranged in an array, and adjacent quadrangular pyramids are connected to each other.

[0010] According to the lens provided by the present application, each of the quadrangular pyramids is a regular quadrangular pyramid, where a vertex angle of an isosceles triangle on a side of the regular quadrangular pyramid is 125°~140°, a height of the regular quadrangular pyramid is 0.1~0.2 mm, and a side length of a bottom of the regular quadrangular pyramid is 0.45~0.75 mm.

[0011] According to the lens provided by the present application, the resistor accommodating grooves are uniformly arranged along a circumferential direction of the light source accommodating groove.

[0012] According to the lens provided by the present application, a width of each of the resistor accommodating grooves is 2.06 mm and a height of each of the resistor accommodating grooves is 0.65 mm.

[0013] According to the lens provided by the present application, an exhaust groove is configured in the lens body, and the exhaust groove is in communication with the light source accommodating groove and / or the resistor accommodating grooves.

[0014] According to the lens provided by the present application, the lens body is a solid of revolution.

[0015] According to the lens provided by the present application, the light exiting surface includes a central light-exiting area and a side light-exiting area, where the central light-exiting area is concave toward the direction of the light source accommodating groove, and the side light-exiting area is convex toward a direction away from the light source accommodating groove.

[0016] In the second aspect, the present application further provides a lighting lamp, which includes: the lens according to any one of the above; a substrate, and the light source and the resistor disposed on the substrate, where the lens body is installed on the substrate, the light source is accommodated in the light source accommodating groove, and the resistor is electrically connected to the light source, accommodated in the resistor accommodating grooves, and configured for performing negative voltage protection on the light source.

[0017] The lens of the present application may be applied to various lighting lamps such as ceiling lamps, decorative lamps, and fan lamps. By setting the lens body and installing the light source in the light source accommodating groove on one side of the lens body, the illumination range of the light source is expanded through the refraction of the lens body. Further, by setting the resistor in the resistor accommodating grooves on one side of the lens body, the resistor is shielded and protected, and electric shock is prevented. Since the resistor is disposed inside the lens body, no additional protective structures are required, which helps to reduce the size of the entire lighting lamp.BRIEF DESCRIPTION OF DRAWINGS

[0018] To describe the technical solutions in the present application or the prior art more clearly, the following briefly introduces drawings required for describing the embodiments or the prior art. Apparently, the drawings in the following description show some embodiments of the present application, and other drawings may also be obtained by a person of ordinary skill in the art according to these drawings without creative efforts. Fig. 1 is a first cross-sectional view of a lighting lamp provided by an embodiment of the present application; Fig. 2 is a three-dimensional structural diagram of a lens body provided by an embodiment of the present application; Fig. 3 is a second cross-sectional view of a lighting lamp provided by an embodiment of the present application; and Fig. 4 is a bottom view of a lens body provided by an embodiment of the present application. Reference Numerals:

[0019] 1 - lighting lamp; 11 - lens body; 12 - light source; 13 - resistor; 14 - substrate; 111 - light source accommodating groove; 112 - resistor accommodating groove; 113 - light incident surface; 114 - light exiting surface; 115 - reflective surface; 116 - exhaust groove; 1141 - central light-exiting area; 1142 - side light-exiting area; 1151 - quadrangular pyramid. DETAILED DESCRIPTION

[0020] To clarify the objectives, technical solutions, and advantages of the embodiments of the present application, the technical solutions of the present application will be described clearly and completely. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present disclosure.

[0021] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. They are only used for facilitating the description of the embodiments of the present application and simplifying the description, rather than indicating or implying that the referred apparatus or elements must have specific orientations or be constructed and operated in specific orientations. Therefore, they shall not be construed as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and shall not be construed as indicating or implying relative importance.

[0022] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "install", "link", and "connect" shall be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; they may refer to mechanical connection or electrical connection; they may refer to direct connection or indirect connection through an intermediate medium, or internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application may be understood according to specific situations.

[0023] The lens provided by the present application is described below with reference to Fig. 1- Fig. 4.

[0024] As shown in Fig. 1, the lens provided by the present application includes: a lens body 11, a light source accommodating groove 111 formed on one side of the lens body 11 and configured for accommodating a light source 12, and resistor accommodating grooves 112 located outside the light source accommodating groove 111 and configured for accommodating a resistor 13; the inner surface of the light source accommodating groove 111 forms a light incident surface 113, and another side of the lens body 11 opposite to the light source accommodating groove 111 forms a light exiting surface 114.

[0025] In this embodiment, the light source 12 is installed in the light source accommodating groove 111. Light emitted from the light source 12 enters the lens body 11 through the light incident surface 113 of the lens body 11, and after being refracted by the lens body 11, the light irradiates to the outside from the light exiting surface 114 at a larger angle, expanding the illumination range. The resistor 13 is usually electrically connected to the light source 12 to limit the current flowing through the light source 12, which can protect the light source 12 and prevent it from being burned out. Further, by setting the resistor accommodating grooves 112 on one side of the lens body 11 and placing the resistor 13 in the resistor accommodating grooves 112, the resistor 13 is shielded and protected. The lens body 11 usually uses an insulating material, which can also prevent personnel from directly touching the resistor 13 and causing electric shock accidents, meeting safety regulations.

[0026] The lens of the present application may be used in various lighting lamps such as ceiling lamps, decorative lamps, and fan lamps. By setting the lens body 11 and installing the light source 12 in the light source accommodating groove 111 on one side of the lens body 11, the illumination range of the light source 12 is expanded through the refraction of the lens body 11. Further, by setting the resistor 13 in the resistor accommodating grooves 112 on one side of the lens body 11, the resistor 13 is shielded and protected, and electric shock is prevented. Since the resistor 13 is disposed inside the lens body 11, no additional protective structures are needed, which helps to reduce the size of the entire lighting lamp and effectively solves the problem in the prior art where additional structures for installing resistors and preventing electric shock have to be disposed on lighting lamps, which problem leads to lamp size to be increased.

[0027] In some embodiments, as shown in Fig. 2 and Fig. 3, at least one side of the resistor accommodating groove 112 is configured with a reflective surface 115 disposed opposite to the light exiting surface 114, and the reflective surface 115 is concave toward the direction of the light exiting surface 114.

[0028] In this embodiment, part of the light emitted by the light source 12 may be directed toward the resistor 13 after being refracted or totally reflected by the lens body 11 (as shown by the straight arrow in Fig. 3 indicating the light path). The resistor 13 is usually dark in color (e.g., black) and has light absorption capabilities. By setting the reflective surface 115, the light directed toward the resistor 13 is reflected, so as to be directed toward the light exiting surface 114 again. This prevents the light from being absorbed by the resistor 13 and producing dark shadows on the outer surface of the lens body 11. In this way, the light of the lighting lamp is more uniform and the illumination effect is improved, so that the lighting lamp can not only meet the safety protection function but also meet the optical requirements.

[0029] Specifically, as shown in Fig. 2 and Fig. 3, the reflective surface 115 is provided with quadrangular pyramids 1151 arranged in an array, and adjacent quadrangular pyramids 1151 are connected to each other.

[0030] In this embodiment, the quadrangular pyramid 1151 has a multi-surface reflection function and may reflect light coming from different directions. By providing the reflective surface 115 with quadrangular pyramids 1151 arranged in an array and connected to each other, the light coming from all directions may be reflected, so that the reflection effect of the entire reflective surface 115 will be improved. This can better prevent the light from being directed toward the resistor 13 and absorbed, which helps to make the light of the lighting lamp more uniform and improve the illumination effect of the lighting lamp.

[0031] Specifically, the quadrangular pyramid 1151 is a regular quadrangular pyramid. The vertex angle of the isosceles triangle on the side of the regular quadrangular pyramid is 125°~140°, the height of the regular quadrangular pyramid is 0.1~0.2 mm, and the side length of the bottom of the regular quadrangular pyramid is 0.45~0.75 mm.

[0032] In a specific embodiment, as shown in Fig. 2, the quadrangular pyramid 1151 is a regular quadrangular pyramid. The regular quadrangular pyramid has a side length of bottom of 0.65 mm and a height of 0.14 mm, and a vertex angle of the isosceles triangle on the side of the regular quadrangular pyramid is 133.4°.

[0033] In some embodiments, as shown in Fig. 1 to Fig. 4, the resistor accommodating grooves 112 are uniformly arranged along the circumferential direction of the light source accommodating groove 111, on the periphery of the light source accommodating groove 111.

[0034] In this embodiment, by setting the resistor accommodating grooves 112 to be uniformly distributed along the circumferential direction of the light source accommodating groove 111, one or more resistors 13 may be arranged in the resistor accommodating grooves 112 according to actual needs, which makes the arrangement of the resistors 13 more flexible.

[0035] In a specific embodiment, as shown in Fig. 1 to Fig. 4, the resistor accommodating groove 112 is an annular groove surrounding the light source accommodating groove 111. The resistor 13 may be disposed at any position in the annular groove, which makes the arrangement of the resistor 13 more convenient and flexible.

[0036] Optionally, a plurality of resistors 13 may be arranged in the annular groove according to actual needs.

[0037] Specifically, as shown in Fig. 1 and Fig. 3, in some embodiments, the width of the resistor accommodating groove 112 is larger than the diagonal length of the resistor 13. In this embodiment, the angle may have a certain deviation when the resistor 13 is mounted or placed as a chip component. By setting the width of the resistor accommodating groove 112 to be larger than the diagonal length of the resistor 13, the resistor 13 with angular deviation may still be accommodated in the resistor accommodating groove 112, facilitating the installation and arrangement of the resistor 13.

[0038] In some embodiments, the width of the resistor accommodating groove 112 is 2.06 mm and the height of the resistor accommodating groove is 0.65 mm.

[0039] The size (length × width × height) of a commonly used resistor 13 is a chip resistor of 1.6 mm × 0.8 mm × 0.45 mm. Considering that the resistor 13 may deflect during installation, the width of the resistor accommodating groove 112 needs to be larger than the diagonal length of the resistor 13 (1.789 mm). Further considering factors such as the chip mounting error and the tolerance of the chip resistor, the width of the resistor accommodating groove 112 should be larger than 1.9 mm. The thickness of the chip resistor is 0.45 mm, and considering the height of the solder and the tolerance range of the chip resistor itself, the height of the resistor accommodating groove 112 is required to be larger than 0.5 mm. To better accommodate the resistor 13, the width of the resistor accommodating groove 112 is set to 2.06 mm and the height of the resistor accommodating groove is set to 0.65 mm.

[0040] In a specific embodiment, the resistor accommodating groove 112 is an annular groove, and the annular groove has an inner diameter of 5.47 mm and an outer diameter of 9.58 mm, that is, the width of the annular groove is 2.06 mm and the height of the annular groove is 0.65 mm.

[0041] Optionally, an exhaust groove 116 is configured in the lens body 11, and the exhaust groove 116 is in communication with the light source accommodating groove 111.

[0042] In this embodiment, the light source 12 generates heat continuously during operation. During use, water vapor may penetrate into the light source accommodating groove 111 and form mist under heating of the light source 12, which affects the illumination effect. By setting the exhaust groove 116 to exhaust and dissipate heat for the light source 12, it is beneficial to prevent the illumination effect from being affected by the mist. The structure is simple and the use effect is good.

[0043] Similarly, as shown in Fig. 2, the exhaust groove 116 may also be in communication with the resistor accommodating groove 112 to exhaust and dissipate heat for the resistor 13, thereby preventing water vapor from being heated by the resistor 13 to form mist, which affects the operation of the resistor 13.

[0044] Optionally, the exhaust groove 116 may be in communication with both the light source accommodating groove 111 and the resistor accommodating groove 112, so as to exhaust and dissipate heat for both the resistor 13 and the light source 12.

[0045] In some embodiments, as shown in Fig. 2 and Fig. 4, the lens body 11 is a solid of revolution. The structure of the lens body 11 is rotationally symmetric, so the light emitted by the light source 12 through the refraction of the lens body 11 is more uniformly distributed.

[0046] In some embodiments, as shown in Fig. 3, the light exiting surface 114 includes a central light-exiting area 1141 and a side light-exiting area 1142. The central light-exiting area 1141 is concave toward the direction of the light source accommodating groove 111, and the side light-exiting area 1142 is convex toward the direction away from the light source accommodating groove 111.

[0047] In this embodiment, the central light-exiting area 1141, the side light-exiting area 1142, and the light incident surface 113 are all smooth curved surfaces. Through the cooperation of the three, the Lambertian light distribution emitted by the light source 12 may be deflected into a large-angle batwing light distribution. Furthermore, uniform illumination in a large range can be achieved with smaller light source 12. The structure is simple and the practicality is high.

[0048] Specifically, the lens body 11 is a glass lens or a plastic lens. Glass lenses or plastic lenses have good transparency and insulation properties, which can meet the optical requirements of lighting while protecting the resistor 13.

[0049] On the other hand, as shown in Fig. 1, the present application also provides a lighting lamp 1, which includes: the lens provided in any one of the above embodiments; a substrate 14, the light source 12 and the resistor 13 arranged on the substrate 14, where the lens body 11 is installed on the substrate 14, the light source 12 is accommodated in the light source accommodating groove 111, and the resistor 13 is electrically connected to the light source 12, accommodated in the resistor accommodating grooves 112 and configured for performing negative voltage protection on the light source 12.

[0050] In this embodiment, by providing the lens according to any one of the above embodiments, the lighting lamp 1 of the present application also has the advantages of the above lens, which will not be repeated here. In this embodiment, by setting the substrate 14 to cooperate with the lens body 11 to enclose the light source 12 and the resistor 13 inside the lighting lamp 1, the light source 12 and the resistor 13 are sealed and protected, and personnel are further prevented from touching the resistor 13. The structure is simple and the practicality is high. By setting the resistor 13 to be electrically connected to the light source 12, negative voltage protection is provided for the light source 12, preventing the light source 12 from being burned out and improving the stability and service life of the light source 12.

[0051] In a specific embodiment, the substrate 14 is an aluminum substrate, the light source 12 is a chip LED lamp bead, and the resistor 13 is a chip resistor, where the light source 12 and the resistor 13 are fixed on the surface of the substrate 14 by silk printing. The light source 12, the resistor 13, and the substrate 14 are firmly attached, and the light source 12 and the resistor 13 occupy a small volume.

[0052] The embodiments described above are only illustrative, and some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of the embodiments. For those of ordinary skill in the art, without creative work, they can understand and implement it.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or replace some of the technical features equivalently. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A lens, comprising: a lens body (11), a light source accommodating groove (111), formed on one side of the lens body (11) and configured for accommodating a light source (12), and resistor accommodating grooves (112), located on an outer side of the light source accommodating groove (111) and configured for accommodating a resistor (13), wherein an inner surface of the light source accommodating groove (111) forms a light incident surface (113), and another side of the lens body (11) opposite to the light source accommodating groove (111) forms a light exiting surface (114).

2. The lens according to claim 1, wherein at least one side of each of the resistor accommodating grooves (112) is configured with a reflective surface (115) which is disposed opposite to the light exiting surface (114), and the reflective surface (115) is concave toward a direction of the light exiting surface (114).

3. The lens according to claim 2, wherein the reflective surface (115) is provided with quadrangular pyramids (1151) arranged in an array, and adjacent quadrangular pyramids (1151) are connected to each other.

4. The lens according to claim 3, wherein each of the quadrangular pyramids (1151) is a regular quadrangular pyramid, a vertex angle of an isosceles triangle on a side of the regular quadrangular pyramid is 125°~140°, a height of the regular quadrangular pyramid is 0.1~0.2 mm, and a side length of a bottom of the regular quadrangular pyramid is 0.45~0.75 mm.

5. The lens according to claim 1, wherein the resistor accommodating grooves (112) are uniformly arranged along a circumferential direction of the light source accommodating groove (111).

6. The lens according to claim 5, wherein a width of each of the resistor accommodating grooves (112) is 2.06 mm and a height of each of the resistor accommodating grooves (112) is 0.65 mm.

7. The lens according to claim 1, wherein an exhaust groove (116) is configured in the lens body (11), and the exhaust groove (116) is in communication with the light source accommodating groove (111) and / or the resistor accommodating grooves (112).

8. The lens according to any one of claims 1-6, wherein the lens body (11) is a solid of revolution.

9. The lens according to claim 1, wherein the light exiting surface (114) comprises a central light-exiting area (1141) and a side light-exiting area (1142), the central light-exiting area (1141) is concave toward a direction of the light source accommodating groove (111), and the side light-exiting area (1142) is convex toward a direction away from the light source accommodating groove (111).

10. A lighting lamp (1), comprising: the lens according to any one of claims 1 to 9; and a substrate (14), and the light source (12) and the resistor (13) disposed on the substrate (14), wherein the lens body (11) is installed on the substrate (14), the light source (12) is accommodated in the light source accommodating groove (111), and the resistor (13) is electrically connected to the light source (12), accommodated in the resistor accommodating grooves (112) and configured for performing negative voltage protection on the light source (12).

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