Lamp lens structure

Abstract

The utility model discloses a lamp lens structure which comprises a lens body, the lens body is arranged below a light source PCB at the bottom of a lamp shell, the lens body is connected to the lamp shell through a connecting piece, the middle of the lens is sunken downwards to form a sunken part, and a first through hole is formed in the center of the sunken part. The first through hole is matched with an end cover used for fixing the position of a sensor in a threaded fit mode, the wall face, on the outer side of the first through hole, of the lens body extends upwards to form an extending part, the extending part extends to the position below a second through hole formed in the position close to the middle of the light source PCB, and the middle of the lens structure is matched with the end cover used for fixing the sensor. According to the utility model, the lens is arranged on the lens main body and is detachably connected with the lens main body, so that a circuit connected to the sensor can be connected and then mounted on the lens main body when the sensor is mounted, and the sensor can be quickly detached from the lamp when the sensor fails and needs to be maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting devices, in particular to a lamp lens structure. Background Art

[0002] The lens is an important component of the lamp to adjust the light effect and prevent foreign objects from entering the lamp. The sensor is an important component for today's lighting fixtures to achieve functional expansion. These two lamp components are generally set at the edge of the lamp to facilitate their own functions.

[0003] However, existing lamps seldom fix sensors on the lens. Most lamps are arranged in a manner of separately setting different positions of the lamp housing. The manner of separately setting the two on the lamp housing will cause certain obstacles to the improvement of the lamp towards miniaturization. In addition, the sensors on some lamps need to disassemble the lamp housing during installation in order to connect the lines to the sensors. When the sensors fail, the lamp housing also needs to be disassembled to remove them. Moreover, since the sensors need to be fixed on the lamp housing with the help of fixing components, and the installation and disassembly operations of these components for fixing the sensors generally require the use of tools, the convenience of sensor installation and maintenance operations will also be reduced. Utility Model Content

[0004] In view of the above technical deficiencies, the utility model provides a lens structure which can not only connect the circuits connected to the sensor and then install it into the lens body when the sensor is installed, but also can quickly remove the sensor from the lamp when the sensor fails and needs maintenance.

[0005] In order to achieve the above object, the utility model is implemented through the following technical solutions:

[0006] The utility model discloses a lamp lens structure, which comprises a lens body, wherein the lens body is arranged below a light source PCB at the bottom of a lamp housing, the lens body is connected to the lamp housing through a connecting piece, the middle part of the lens is recessed downward to form a recessed portion, a first through hole is arranged at the center of the recessed portion, the first through hole is matched with an end cover for fixing a sensor position by means of threaded matching, an extension portion extends upward from a wall surface of the lens body outside the first through hole, and the extension portion extends to below a second through hole arranged near the middle part of the light source PCB.

[0007] Furthermore, a first sealing ring is provided between the bottom surface of the recessed portion and the end portion of the end cover not fitted into the first through hole, and at least two first annular convex strips are provided on surfaces on both upper and lower sides of the first sealing ring.

[0008] Furthermore, a plurality of mounting holes are circumferentially arranged in the middle and the edge of the lens body, and the connector is inserted into the mounting holes and then passes through the light source PCB and then into the bottom surface of the lamp housing to achieve the connection between the lens body and the lamp housing.

[0009] Furthermore, a plurality of hemispherical protrusions are provided on the bottom surface of the lens body, and the positions where the lamp beads on the light source PCB are arranged correspond to the positions where the protrusions are arranged on the bottom surface of the lens body.

[0010] Furthermore, a sealing groove is arranged at the edge of the top surface of the lens body, a second sealing ring is arranged in the sealing groove, and at least two annular second convex strips are arranged on the surface of the second sealing ring close to the lamp housing.

[0011] Furthermore, a groove is provided at the bottom of the lamp housing, the lens body is located in the groove, and there is a gap between the edge of the lens body and the groove.

[0012] Furthermore, the diameter of the extension portion is smaller than the diameter of the second through hole, and the edge of the top of the extension portion is provided with a rounded corner.

[0013] The beneficial effects of the utility model are:

[0014] The first through hole in the middle of the lens structure is equipped with an end cap for fixing the sensor, and the end cap is connected to the lens body in a detachable manner. Not only can the lines connected to the sensor be wired and then installed on the lens body when the sensor is installed, but the sensor can also be quickly removed from the lamp when the sensor fails and needs maintenance. The sensor installation and removal process does not require the use of tools to achieve the installation or removal of the end cap, making the installation of the sensor simpler and more convenient; and after the lens body expands due to heat, the extension portion will extend into the second through hole to avoid affecting the position of the light source PCB and the light source PCB structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the external structure when the lens structure is set in a lamp.

[0016] Figure 2 This is a schematic diagram of the internal structure when the lens structure is set in a lamp.

[0017] Figure 3 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0018] Figure 4 for Figure 2 A local enlarged schematic diagram of point B in the middle.

[0019] Figure 5 Schematic diagram of the structure of the lens body Figure 1 .

[0020] Figure 6 Schematic diagram of the structure of the lens body Figure 2 .

[0021] Figure 7 It is a schematic diagram of the structure of the end cover.

[0022] In the figure, 1, lens body; 2, lamp housing; 3, light source PCB; 4, connector; 5, recessed portion; 6, first through hole; 7, end cover; 8, extension portion; 9, second through hole; 10, first sealing ring; 11, first convex strip; 12, mounting hole; 13, protrusion; 14, sealing groove; 15, second sealing ring; 16, second convex strip; 17, groove; 18, rounded corner. DETAILED DESCRIPTION

[0023] The utility model discloses a lamp lens structure, such as Figures 1 to 7 As shown in combination, the lens structure includes a lens body 1, which is arranged below the light source PCB3 at the bottom of the lamp housing 2, and the lens body 1 is connected to the lamp housing 2 through a connecting piece 4. The middle part of the lens is recessed downward to form a recessed portion 5, and a first through hole 6 is provided at the center of the recessed portion 5. The first through hole 6 is threadedly matched with an end cover 7 for fixing the position of the sensor, and an extension portion 8 extends upward from the wall surface of the lens body 1 outside the first through hole 6, and the extension portion 8 extends to below a second through hole 9 provided near the middle of the light source PCB3.

[0024] It should be noted that a first through hole 6 is provided in the middle of the lens body 1, and a sensor is provided in the middle of the end cover 7. Before installing the sensor, the circuit to be connected to the sensor can be connected outside the lamp, and then the end cover 7 with the sensor can be installed to the first through hole 6, so that the circuit connected to the sensor and the sensor are fixed in the space of the lamp housing 2 above the recessed portion 5, and the end cover 7 is connected to the lens body 1 in a detachable manner, so that the sensor can be quickly removed from the first through hole 6 when the sensor fails and needs maintenance. The end cover 7 that fixes the sensor can be installed or removed without the use of tools, thereby facilitating maintenance work and making the sensor assembly and disassembly process simpler and more convenient; after the lens body 1 is connected to the lamp housing 2 through the connecting member 4, the position of the extension portion 8 is located outside the position of the second through hole 9. When the lens body 1 expands due to heat, the extension portion 8 will extend into the second through hole 9 without affecting the position of the light source PCB3, thereby avoiding the expansion of the lens body 1 causing the position of the light source PCB3 to shift or cause damage to the light source PCB3.

[0025] As a further preference of the above embodiment, Figure 3As shown, a first sealing ring 10 is provided between the bottom surface of the recessed portion 5 and the end portion of the end cover 7 not fitted into the first through hole 6, and at least two annular first convex strips 11 are provided on the upper and lower surfaces of the first sealing ring 10.

[0026] Among them, after the end cover 7 is installed into the first through hole 6, the first sealing ring 10 will seal the gap between the end cover 7 and the bottom surface of the recessed portion 5, preventing foreign objects from entering the space connected to the first through hole 6 from the gap between the end cover 7 and the bottom surface of the recessed portion 5, and preventing foreign objects from entering the internal space of the lamp through the first through hole 6 to affect the normal operation of the lamp; the first convex strip 11 can reduce the friction between the upper and lower sides of the first sealing ring 10 and the recessed portion 5 and the end cover 7 respectively. When the end cover 7 is rotated to fit into the first through hole, the first convex strip 11 contacts the surface of the recessed portion 5 and the surface of the end cover 7 to avoid deformation of the main part of the first sealing ring 10, which is beneficial for the first sealing ring 10 to maintain the sealing of the gap between the end cover 7 and the bottom surface of the recessed portion 5.

[0027] As a further preference of the above embodiment, Figure 1 , Figure 2 and Figure 6 As shown in the combination, the middle and edge of the lens body 1 are circumferentially provided with a plurality of mounting holes 12, the connecting member 4 is inserted into the mounting hole 12, and after penetrating the light source PCB 3, is inserted into the bottom surface of the lamp housing 2 to achieve the connection between the lens body 1 and the lamp housing 2.

[0028] Among them, the middle and edge of the lens body 1 are fixed by the connecting piece 4, so that the lens body 1 can obtain higher stability when connected to the lamp housing 2, and when the lens body 1 is connected to the lamp housing 2 by using the connecting piece 4, the connecting piece 4 also penetrates the light source PCB3. After the light source PCB3 and the lens body 1 are connected into an integral structure with upper and lower distribution by using the connecting piece 4, this integral structure is connected to the bottom of the lamp housing 2 to realize the quick installation of the light source PCB3 and the lens body 1.

[0029] As a further preference of the above embodiment, Figure 6 As shown, the bottom surface of the lens body 1 is provided with a plurality of hemispherical protrusions 13 , and the positions of the lamp beads on the light source PCB 3 correspond to the positions of the protrusions 13 on the bottom surface of the lens body 1 .

[0030] Among them, the light emitted by the lamp beads on the light source PCB3 is irradiated to the lens and passes through the hemispherical protrusion 13, and the light can be diverged. In addition, the cooperation of multiple lamp beads and the protrusion 13 makes the light emitted from the light-emitting part of the lamp cover the entire irradiation area of ​​the lamp, making the light emitted by the lamp more uniform.

[0031] As a further preference of the above embodiment, Figure 4 As shown, a sealing groove 14 is provided at the edge of the top surface of the lens body 1 , a second sealing ring 15 is provided in the sealing groove 14 , and at least two annular second convex strips 16 are provided on the surface of the second sealing ring 15 close to the lamp housing 2 .

[0032] Among them, after the lens body 1 is installed under the lamp housing 2, the second sealing ring 15 will seal the gap between the edge of the lens body 1 and the bottom surface of the lamp housing 2, to prevent foreign objects from entering the space where the light source PCB3 is located through the gap between the edge of the lens body 1 and the bottom surface of the lamp housing 2, to avoid foreign objects entering the space where the light source PCB3 is located to cause damage to the light source PCB3 and affect the normal operation of the lamp; since the second convex strip 16 is the main part that contacts the lamp housing 2 and the lens body 1, when the lens body 1 is heated and deformed, the sealing groove 14 will shift relative to the lamp housing 2, and the second convex strip 16 will also deform with the position shift of the sealing groove 14, while the main part of the second sealing ring 15 is still in the sealing groove 14 and keeps its position unchanged, so the setting of the second convex strip 16 is conducive to the first sealing ring 10 to maintain the sealing of the gap between the edge of the lens body 1 and the bottom surface of the lamp housing 2.

[0033] As a further preference of the above embodiment, Figure 4 As shown, a groove 17 is provided at the bottom of the lamp housing 2 , and the lens body 1 is located in the groove 17 , and there is a gap between the edge of the lens body 1 and the groove 17 .

[0034] Among them, the groove 17 provides space for the lens body 1 to be installed at the bottom of the lamp housing 2. After the lens body 1 is installed at the bottom of the lamp housing 2, the gap between the edge of the lens body 1 and the groove 17 can provide an extension space for the lens body 1 after heat expansion, thereby preventing the lens body 1 from squeezing the edge of the lamp housing 2 during expansion and causing damage to the lamp housing 2.

[0035] As a further preference of the above embodiment, Figure 3 As shown, the diameter of the extension portion 8 is smaller than the diameter of the second through hole 9 , and a rounded corner 18 is provided on the edge of the top of the extension portion 8 .

[0036] Among them, the setting of the rounded corner 18 can facilitate the extension portion 8 to slide into the second through hole 9 after the lens body 1 expands due to heat, and can guide the extension of the extension portion 8, thereby preventing the extension portion 8 from being hard squeezed with the light source PCB3 due to not accurately extending into the second through hole 9 during the extension process, thereby causing the position of the light source PCB3 to be offset or causing damage to the light source PCB3.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lamp lens structure, comprising a lens body, wherein the lens body is arranged below a light source PCB at the bottom of a lamp housing, and characterized in that: The lens body is connected to the lamp housing through a connecting piece, the middle part of the lens is recessed downward to form a recessed portion, a first through hole is provided at the center of the recessed portion, the first through hole is fitted with an end cover for fixing the position of the sensor by means of threaded fitting, an extension portion extends upward from the wall surface of the lens body outside the first through hole, and the extension portion extends to below a second through hole provided near the middle of the light source PCB.

2. The lamp lens structure according to claim 1, characterized in that: A first sealing ring is provided between the bottom surface of the recessed portion and the end portion of the end cover not fitted into the first through hole, and at least two first annular convex strips are provided on the surfaces of the upper and lower sides of the first sealing ring.

3. The lamp lens structure according to claim 1, characterized in that: The middle and edge of the lens body are circumferentially provided with a plurality of mounting holes, the connector is inserted into the mounting holes, and after penetrating the light source PCB, is inserted into the bottom surface of the lamp housing to achieve connection between the lens body and the lamp housing.

4. The lamp lens structure according to claim 1, characterized in that: The bottom surface of the lens body is provided with a plurality of hemispherical protrusions, and the positions of the lamp beads on the light source PCB correspond vertically to the positions of the protrusions on the bottom surface of the lens body.

5. The lamp lens structure according to claim 1, characterized in that: A sealing groove is arranged at the edge of the top surface of the lens body, a second sealing ring is arranged in the sealing groove, and at least two annular second convex strips are arranged on the surface of the second sealing ring close to the lamp housing.

6. The lamp lens structure according to claim 1, characterized in that: The bottom of the lamp housing is provided with a groove, the lens body is located in the groove, and there is a gap between the edge of the lens body and the groove.

7. The lamp lens structure according to claim 1, characterized in that: The diameter of the extension portion is smaller than the diameter of the second through hole, and the edge of the top of the extension portion is provided with a rounded corner.

Images