Light guide ring

Abstract

The utility model relates to a light guide ring which comprises an annular body and a receiving protrusion arranged on one side of the annular body. Along the axial direction of the annular main body, the end surface of one end, far away from the annular main body, of the receiving bulge is a light receiving surface, and the light receiving surface is a concave surface; the light receiving face is of an axial symmetry structure in the radial direction of the annular body. The spacing position between the light source and the light-receiving surface can be adjusted more easily through the mode that the light-receiving surface is arranged to be the concave surface, so that the light-emitting surface of the light source can be in a partial surrounding state better, and received light can be distributed more uniformly on the light-receiving surface; therefore, the uniform transmission of light in the annular main body is more beneficial.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric equipment technical field especially relates to a light guide ring. BACKGROUND

[0002] In some electronic devices, generally set up light emitting parts, play the role of indicating working condition, fault warning etc., for example, on the controller of some lamps, infrared physiotherapy lamps and other appliances, generally adopt light emitting parts to play the role of indicating working condition; for example, light emitting part emits red light, indicates that the appliance is in the open state, can also express different working conditions of the appliance through adjusting the color, brightness change etc. of light emitting part, improves the visual experience of the user. In addition, generally through the set light emitting part can realize the indication and warning effect in weak light environment, to improve the convenience of use.

[0003] In the prior art, LED light source has the advantages of long service life, small size, low power consumption, low cost and high brightness, so that it has a wide range of application scenarios, and can be used as a light emitting part to realize the outward transmission of light; but because the LED light source is a point light source, it has the characteristics of high brightness, and also makes the light emitted by it difficult to be uniformly distributed in a certain range, and the LED light source is usually arranged on the circuit board to realize vertical irradiation of the light transmission part, but because the LED light source is close to the light transmission part, it cannot effectively diffuse the light source, resulting in poor uniform light effect, and discrete strong light spots are easy to appear on the light transmission part, which seriously affects the user experience; especially in dark environment, the disadvantages of such strong light spots are more obvious.

[0004] Therefore, a new light guide ring is needed to fully receive the light emitted by the LED light source and to achieve uniform distribution of the received light, eliminating the discrete light spots presented by traditional light transmission parts. UTILITY MODEL CONTENTS

[0005] The utility model discloses a light guide ring.

[0006] To achieve the above utility model purpose, the utility model provides a light guide ring, which comprises: a ring-shaped main body, a receiving protrusion arranged on one side of the ring-shaped main body;

[0007] Along the axial direction of the ring-shaped main body, the end face of the receiving protrusion away from the ring-shaped main body is a light receiving face, and the light receiving face is a concave face;

[0008] Along the radial direction of the ring-shaped main body, the light receiving face is an axisymmetric structure.

[0009] According to one aspect of the utility model, along the direction from the radial outside to the radial inside of the ring-shaped main body, the circumferential length of the light receiving face gradually decreases.

[0010] According to one aspect of the utility model, the circumferential length of the receiving protrusion gradually decreases in the direction of the axial direction of the annular body and away from the annular body.

[0011] According to one aspect of the utility model, the protruding height of the receiving protrusion gradually decreases from the end of the receiving protrusion away from the annular body in the direction from the radial outside to the radial inside of the annular body.

[0012] According to one aspect of the utility model, the receiving protrusions are arranged at equal intervals along the circumferential direction of the annular body.

[0013] According to one aspect of the utility model, the protruding outer end faces of the opposite sides of the receiving protrusion are mirror surfaces.

[0014] According to one aspect of the utility model, the radial dimension of the annular body decreases in the direction of the axial direction of the annular body and close to the receiving protrusion.

[0015] According to one aspect of the utility model, the annular body is a tapered ring.

[0016] The annular body is a stepped ring, and it comprises a first annular part, a second annular part and a third annular part.

[0017] The first annular part, the second annular part and the third annular part are coaxially arranged, and the first annular part and the third annular part are arranged in a staggered manner along the axial direction of the annular body.

[0018] The radial dimension of the third annular part is smaller than the radial dimension of the first annular part.

[0019] The opposite sides of the second annular part in the radial direction of the annular body are respectively fixedly connected with the end parts of the third annular part and the first annular part.

[0020] The receiving protrusion is arranged on the end face of the end of the third annular part away from the second annular part.

[0021] According to one aspect of the utility model, the end of the third annular part connected with the second annular part is provided with a first annular mirror surface.

[0022] The end of the first annular part connected with the second annular part is provided with a second annular mirror surface.

[0023] The first annular mirror surface and the second annular mirror surface are respectively tapered ring surfaces.

[0024] The first annular mirror surface is opposite to the receiving protrusion.

[0025] According to one aspect of the present application, the end face of the first annular part away from the second annular part is a light emitting surface, and the light emitting surface is arranged opposite the second annular reflective surface.

[0026] According to one aspect of the present application, the light emitting surface is a conical ring surface.

[0027] In the direction from the first annular part to the third annular part, the radial dimension of the light emitting surface is gradually reduced.

[0028] The annular body is a PC material ring, and the receiving protrusion is a PC material protrusion.

[0029] According to one aspect of the present application, the vertical distance between the circumferential ends of the light receiving surface and the annular body is greater than the vertical distance between the middle position of the light receiving surface and the annular body, so that the receiving protrusion end face is concave, thereby effectively increasing the circumferential length of the light receiving surface, so that the light emitted by the light source (i.e. LED point light source) can be more easily received, in addition, by setting the light receiving surface as a concave surface, the spacing position between the light source and the light receiving surface can be more easily adjusted, thereby better realizing the state of partially surrounding the light emitting surface of the light source, so that the received light can be more uniformly distributed on the light receiving surface, thereby being more beneficial to the uniform transmission of light in the annular body.

[0030] According to one aspect of the present application, along the radial direction of the annular body, the light receiving surface is an axisymmetric structure, thereby more conveniently aligning the light receiving surface and the light source along the symmetry axis, so that the received light is more uniform, and further more beneficial to the annular uniform distribution of the received light in the annular body.

[0031] According to one aspect of the present application, based on the gradually reduced circumferential length of the receiving protrusion, the protruding outer end face of the receiving protrusion at the two ends is inclined, thereby setting the protruding outer end face of the receiving protrusion as inclined, which can sufficiently increase the included angle between the light receiving surface, so that part of the light can be reflected in a wide range through the inclined protruding outer end face while the light receiving surface receives external light, thereby making the input light widely distributed to improve the distribution range of the light entering the annular body.

[0032] According to one aspect of the present application, in the direction from the radial outer side to the radial inner side of the annular body, the protruding height of the receiving protrusion is gradually reduced, so that the light receiving surface is arranged inclined relative to the annular body, thereby making the light receiving surface have a certain inclination angle relative to the radial side surface on the annular body, so that the light received by the light receiving surface can be conducted to the radial side surface on the annular body to realize the reciprocating reflection of light between the radial side surfaces of the annular body, thereby achieving the uniform distribution effect of light.

[0033] According to one of the utility model, through the mode that a plurality of receiving convex is set in the circumferential direction of annular main body, can make the position of received light is effectively increased, so that the received light is more easily in annular main body evenly distributed, and can be through the control light source's switch quantity and light source kind just can realize the brightness and the color of whole light guide ring's adjustment, make the light mixing and light guiding effect of the utility model more excellent. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is the perspective view that schematic representation according to one embodiment of the utility model's light guide ring;

[0035] Figure 2 It is the front perspective view that schematic representation according to one embodiment of the utility model's light guide ring;

[0036] Figure 3 It is the relative position diagram that schematic representation according to one embodiment of the utility model's light guide ring and light source;

[0037] Figure 4 It is the sectional view that schematic representation according to one embodiment of the utility model's light guide ring;

[0038] Figure 5 It is the sectional view that schematic representation according to another embodiment of the utility model's light guide ring;

[0039] Figure 6 It is the sectional view that schematic representation according to another embodiment of the utility model's light guide ring. DETAILED DESCRIPTION

[0040] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0041] When describing the embodiments of the utility model, the orientation or position relationship expressed by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" is based on the orientation or position relationship shown in the relevant drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation of the utility model.

[0042] The utility model will be described in detail below in combination with the drawings and specific embodiments. The embodiments cannot be described one by one here, but the embodiments of the utility model are not limited to the following embodiments.

[0043] In combination with Figure 1 , Figure 2 , Figure 3 And Figure 4 As shown in the utility model discloses a kind of light guide ring according to one embodiment of the utility model, the utility model includes: annular main body 11, receiving protrusion 12 is arranged in one side of annular main body 11;In the embodiment, annular main body 11 and receiving protrusion 12 can be integrally formed;Wherein, along the axial direction of annular main body 11, the end face of the end of receiving protrusion 12 away from annular main body 11 is light receiving surface, and the light receiving surface is concave, i.e. the vertical distance between the circumferential ends of light receiving surface and annular main body 11 is greater than the vertical distance between the middle position of light receiving surface and annular main body 11, so that the end face of receiving protrusion 12 is concave, thereby effectively increasing the circumferential length of light receiving surface, so that it can be more easily received by the light emitted by light source (i.e. LED point light source). In addition, by setting the light receiving surface as concave, the spacing position between the light source and the light receiving surface can be more easily adjusted, so that the light emitting surface of the light source can be better realized as partially surrounded, so that the received light can be more evenly distributed on the light receiving surface, thereby being more beneficial to the uniform transmission of light in annular main body 11.

[0044] In the embodiment, the size of the light receiving surface is greater than that of the light source opposite to it, so that the light receiving surface has sufficient receiving capacity. Further, along the radial direction of annular main body 11, the light receiving surface is an axisymmetric structure, so that the light receiving surface and the light source can be more conveniently arranged in alignment along the symmetry axis, so that the received light is more uniform, and it is further more beneficial to the annular uniform distribution of the received light in annular main body 11.

[0045] In the embodiment, the concave form of the light receiving surface can be one of circular arc surface, elliptical arc surface and parabolic surface. By flexibly setting the concave form of the light receiving surface, the position between the light receiving surface and the light source can be flexibly matched, so as to achieve uniform reception of light. In the embodiment, the concave form of the light receiving surface is set as circular arc surface, so as to conveniently reduce the processing difficulty of the light receiving surface and reduce its production cost.

[0046] In combination with Figure 1 , Figure 2 , Figure 3 And Figure 4As shown, according to an embodiment of the present application, the circumferential length of the light receiving surface gradually decreases in the direction from the radial outer side to the radial inner side of the annular body 11. Thus, the projection of the light receiving surface presents a fan ring shape, so that the light receiving surface can more easily match the end surface size of the annular body 11 arranged to receive the protrusion 12, thereby more conveniently transmitting the received light uniformly into the annular body 11.

[0047] Further, in the radial direction of the annular body 11, the width of the receiving protrusion 12 is consistent with the width of the end portion of the annular body 11 arranged to receive the protrusion 12, thereby sufficiently ensuring the coincidence of the light receiving surface projection and the end surface of the annular body 11 to ensure the efficiency of light transmission. In addition, by making the width of the receiving protrusion 12 consistent with the width of the end portion of the annular body 11 arranged to receive the protrusion 12, the two sides of the receiving protrusion 12 in the width direction can be flush with the side surface of the annular body 11, effectively avoiding light leakage at the connection position, making the light transmission path more reliable.

[0048] In combination with Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, according to an embodiment of the present application, the circumferential length of the receiving protrusion 12 gradually decreases in the axial direction of the annular body 11 and away from the annular body 11. Through the above arrangement, based on the gradually decreasing circumferential length of the receiving protrusion 12, the protruding end surface 12a at both ends of the circumferential direction of the receiving protrusion 12 presents an inclination, thereby based on the inclination of the side surface at both ends of the circumferential direction of the receiving protrusion 12, the included angle between the light receiving surface and the receiving protrusion 12 can be sufficiently increased, so that while the light receiving surface receives external light, part of the light can be reflected in a wide range through the inclined protruding end surface 12a, thereby making the input light widely distributed to improve the distribution range of the light entering the annular body 11.

[0049] In the present embodiment, the protruding end surface 12a at both ends of the circumferential direction of the receiving protrusion 12 is a plane or a concave surface.

[0050] In combination with Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, according to an embodiment of the present application, the protruding height of the receiving protrusion 12 gradually decreases from the radially outer side to the radially inner side of the annular body 11. In this embodiment, the protruding height of the receiving protrusion 12 gradually decreases from the radially outer side to the radially inner side of the annular body 11 to make the light receiving surface inclined relative to the annular body 11, so that the light received by the light receiving surface is conducted to the radial side surface of the annular body 11 to achieve the effect of uniform distribution of light.

[0051] Further, the protruding outer end surface 12a of the receiving protrusion 12 on both sides is a mirror surface along the circumference of the annular body 11. By setting the protruding outer end surface 12a of the receiving protrusion 12 on both sides as a smooth mirror surface, the reflection efficiency of light is improved to ensure the propagation of light to the annular body 11. The roughness of the protruding outer end surface 12a can be set to be less than Ra0.3μm.

[0052] As shown in Figure 1 , Figure 2 and Figure 3 , according to an embodiment of the present application, the receiving protrusions 12 are arranged at equal intervals along the circumference of the annular body 11.

[0053] Through the above arrangement, by arranging multiple receiving protrusions 12 in the circumferential direction of the annular body 11, the position of the received light can be effectively increased, so that the received light is more easily distributed uniformly in the annular body 11, and the brightness and color of the entire light guide ring can be adjusted by controlling the number of light sources and the type of light sources, so that the light uniformity and light guiding effect of the present application are more excellent.

[0054] According to an embodiment of the present application, the radial dimension of the annular body 11 decreases in the direction along the axis of the annular body 11 and close to the receiving protrusion 12. The annular body 11 can be arranged as a stepped ring to achieve a stepped decrease in the radial dimension, as shown in Figure 4 or Figure 5 .

[0055] In another embodiment, the annular body 11 can be arranged as a tapered ring to achieve a gradual decrease in the radial dimension, as shown in Figure 6 .

[0056] By arranging the annular body 11 to have a regular decrease in the radial dimension, it can be conveniently installed with other structures, effectively ensuring the installation convenience of the present application.

[0057] As shown inFigure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown in the drawings, according to an embodiment of the present application, the annular body 11 is provided as a stepped ring, and it comprises: a first annular portion 111, a second annular portion 112 and a third annular portion 113; wherein the first annular portion 111, the second annular portion 112 and the third annular portion 113 are coaxially arranged with each other; wherein along the axial direction of the annular body 11, the first annular portion 111 and the third annular portion 113 are arranged in a staggered manner; in this embodiment, the radial dimension of the third annular portion 113 is smaller than the radial dimension of the first annular portion 111; wherein along the radial direction of the annular body 11, the opposite sides of the second annular portion 112 in the radial direction are respectively fixedly connected with the end portions of the third annular portion 113 and the first annular portion 111; in this embodiment, the receiving protrusion 12 is arranged on the end face of the end of the third annular portion 113 away from the second annular portion 112; wherein along the radial direction of the third annular portion 113, the width of the receiving protrusion 12 is consistent with the radial thickness of the third annular portion 113. In this embodiment, the second annular portion 112 can be provided as a plate-shaped circular ring. Of course, in another embodiment, the second annular portion 112 can also be provided as a tapered ring (see Figure 5 ), thereby achieving matching with the mounting position, so as to achieve self-positioning abutting between each other, so as to effectively ensure the reliability of the installation.

[0058] In combination with Figure 2 and Figure 4As shown, according to one embodiment of the utility model, the first annular reflective surface 113a is arranged at one end of the third annular part 113 connected with the second annular part 112; the second annular reflective surface 111a is arranged at one end of the first annular part 111 connected with the second annular part 112; in this embodiment, the first annular reflective surface 113a and the second annular reflective surface 111a are respectively conical ring surfaces; wherein, the first annular reflective surface 113a and the second annular reflective surface 111a are oppositely arranged, and the first annular reflective surface 113a is oppositely arranged with the receiving convex 12. Thus, the external light received by the light receiving surface on the receiving convex 12 is reflected into the second annular part 112 based on the first annular reflective surface 113a after being conducted through the third annular part 113, and further, the light is reflected into the first annular part 111 based on the second annular reflective surface 111a after being propagated through the second annular part 112, thereby realizing the sequential propagation of the light from the receiving convex 12, the third annular part 113, the second annular part 112 and the first annular part 111, so as to make the propagation and uniform distribution of the external light. In this embodiment, the side surfaces of the third annular part 113 on the two radial sides, the side surfaces of the second annular part 112 on the two axial sides and the side surfaces of the first annular part 111 on the two radial sides are respectively reflective surfaces, thereby making the reciprocating reflection of the light in the transmission process, so as to achieve the corresponding uniform distribution effect. The roughness of the reflective surface can be set to be less than Ra0.3 μm.

[0059] In this embodiment, the inclination angles of the first annular reflective surface 113a and the second annular reflective surface 111a are consistent, thereby the first annular reflective surface 113a and the second annular reflective surface 111a are coaxially and parallelly arranged, thereby making the transmission of the light more reliable.

[0060] In another embodiment, when the second annular part 112 is arranged as a conical ring, the first annular reflective surface 113a and the second annular reflective surface 111a can be respectively coplanar with the two side surfaces of the second annular part 112 in the thickness direction, so as to simplify the structure of the annular main body 11 of the utility model, facilitate the molding and reduce the production cost.

[0061] Combining Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, according to one embodiment of the utility model, the end surface of the first annular part 111 away from the second annular part 112 is an light emitting surface, and the light emitting surface is oppositely arranged with the second annular reflective surface 111a.

[0062] Through the above arrangement, the light emitting surface can sufficiently receive the transmitted light to realize the uniform distribution on the light emitting surface, and achieve the effect of uniformly lighting along the annular.

[0063] Combining Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, according to an embodiment of the present application, the light emitting surface is a conical ring surface; wherein, along the direction of the first annular part 111 to the third annular part 113, the radial dimension of the light emitting surface is gradually reduced. In this embodiment, the angle between the light emitting surface and the axial direction of the annular body 11 is greater than the angle between the second annular reflecting surface 111a and the axial direction of the annular body 11. Through the above arrangement, the light emitting surface as a whole is arranged in an inclined manner, so that the effective area of light emission is increased, thereby making it easier to uniformly receive the light to be output. In addition, the light emitting surface arranged can also cooperate with other structures to make the light emitting surface have a more optimal visual effect.

[0064] According to an embodiment of the present application, the annular body 11 can be set as a circular ring, an elliptical ring or a polygonal ring, which can be adaptively set according to the shape of the installed position. Through the above arrangement, the adaptability of the present application is more optimal.

[0065] According to an embodiment of the present application, the annular body 11 is a PC material ring, and the receiving protrusion 12 is a PC material protrusion.

[0066] Through the above arrangement, the light guide ring of the present application based on PC material can have a more optimal light uniformity, so that the present application has a more optimal light guiding effect. In addition, through the above arrangement, the present application can also be conveniently connected with other structures, so that the present application is more easily and reliably installed.

[0067] Through the above arrangement, the light guide ring of the present application using the PC material setting method can also have a certain elasticity, which can facilitate the elastic abutment between the installation position and the structures, thereby further improving the sealing performance of the installation position.

[0068] Combining Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, according to an embodiment of the present application, the inner and outer sides of the first annular part 111 and the third annular part 113 in the radial direction can be optionally set as smooth mirror surfaces, or can be set as rough surfaces, thereby optimizing the light transmission process. The two sides of the second annular part 112 in the thickness direction can be optionally set as smooth mirror surfaces, or can be set as rough surfaces, which are also used to optimize the light transmission process. In addition, one end of the receiving protrusion 12 arranged on the third annular part 113 can also be set as a smooth mirror surface. Wherein, if set as a smooth mirror surface, the roughness can be set to be less than Ra0.3μm.

[0069] The above is only an example of the specific scheme of the present application, and for the devices and structures not described in detail, it should be understood that the general devices and general methods in the art are adopted to implement them.

[0070] The above is only an example of the specific scheme of the present application, and for the devices and structures not described in detail, it should be understood that the general devices and general methods in the art are adopted to implement them.

Claims

1. A light guide ring, characterized by, The application relates to a light receiving device, which comprises: a ring-shaped body (11) and a receiving protrusion (12) arranged on one side of the ring-shaped body (11); an end surface of the receiving protrusion (12) away from the ring-shaped body (11) is a light receiving surface in the axial direction of the ring-shaped body (11), and the light receiving surface is a concave surface; the light receiving surface is an axisymmetric structure in the radial direction of the ring-shaped body (11).

2. The light guide ring of claim 1, wherein, the circumferential length of the light receiving surface gradually decreases in the direction from the radial outside to the radial inside of the ring-shaped body (11); 3. A light guide ring according to claim 1 or 2, characterized in that the circumferential length of the receiving protrusion (12) gradually decreases in the axial direction of the ring-shaped body (11) and away from the ring-shaped body (11); 4. The light guide ring of claim 3, wherein, the protruding height of the receiving protrusion (12) away from the ring-shaped body (11) gradually decreases in the direction from the radial outside to the radial inside of the ring-shaped body (11); 5. The light guide ring of claim 4, wherein, a plurality of receiving protrusions (12) are arranged at equal intervals in the circumferential direction of the ring-shaped body (11); 6. The light guide ring of claim 5, wherein, the protruding end surface (12a) of the receiving protrusion (12) on the opposite side is a mirror surface; 7. The light guide ring of claim 6, wherein, the radial dimension of the ring-shaped body (11) decreases in the axial direction of the ring-shaped body (11) and close to the receiving protrusion (12); 8. The light guide ring of claim 7, wherein, the ring-shaped body (11) is a tapered ring; or the ring-shaped body (11) is a stepped ring and comprises a first ring-shaped part (111), a second ring-shaped part (112) and a third ring-shaped part (113); the first ring-shaped part (111), the second ring-shaped part (112) and the third ring-shaped part (113) are coaxially arranged; wherein the first ring-shaped part (111) is arranged in a staggered manner with the third ring-shaped part (113) in the axial direction of the ring-shaped body (11); the radial dimension of the third ring-shaped part (113) is smaller than that of the first ring-shaped part (111); the opposite sides of the second ring-shaped part (112) in the radial direction are respectively fixedly connected with the end part of the third ring-shaped part (113) and the first ring-shaped part (111) in the radial direction of the ring-shaped body (11); the receiving protrusion (12) is arranged on the end surface of the third ring-shaped part (113) away from the second ring-shaped part (112); 9. The light guide ring of claim 8, wherein, the end of the third ring-shaped part (113) connected with the second ring-shaped part (112) is provided with a first annular mirror surface (113a); the end of the first ring-shaped part (111) connected with the second ring-shaped part (112) is provided with a second annular mirror surface (111a); the first annular mirror surface (113a) and the second annular mirror surface (111a) are respectively tapered ring surfaces; the first annular mirror surface (113a) is arranged opposite to the receiving protrusion (12); the end surface of the first ring-shaped part (111) away from the second ring-shaped part (112) is a light emitting surface, and the light emitting surface is arranged opposite to the second annular mirror surface (111a).

10. The light guide ring of claim 9, wherein, the light emitting surface is a tapered ring surface. The radial dimension of the light-out surface gradually decreases in the direction from the first annular part (111) to the third annular part (113); The annular body (11) is a PC material ring, and the receiving convex (12) is a PC material convex.

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