Down lamp structure

Abstract

The utility model relates to the technical field of lamp assembly, and discloses a down lamp structure which comprises a lamp body, a containing cavity is formed in the inner side of the lamp body, a light source assembly and an anti-dazzle ring are arranged in the containing cavity, and the light source assembly and the anti-dazzle ring are arranged in the direction from the bottom of the containing cavity to an opening. A first anti-dazzle ring limiting structure is arranged on the inner wall of the containing cavity, a second anti-dazzle ring limiting structure matched with the first anti-dazzle ring limiting structure is arranged on the anti-dazzle ring, and the first anti-dazzle ring limiting structure and the second anti-dazzle ring limiting structure are used for installing the anti-dazzle ring in the containing cavity and limiting the anti-dazzle ring to move towards an opening of the containing cavity; an elastic supporting structure is arranged on the side, close to the anti-dazzle ring, of the light source assembly. The anti-dazzle down lamp has the advantages that the anti-dazzle ring transmits pressure to the light source assembly through the elastic supporting structure, so that the light source assembly is pressed, the assembling problem caused by size errors of the anti-dazzle ring and the light source assembly can be solved, part looseness is prevented, the abnormal sound condition is eliminated, heat dissipation of the light source assembly is facilitated, and the service life of the down lamp is prolonged.

Description

Technical Field

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

[0002] The existing downlight structure generally includes a lamp body and an anti-glare ring, a reflector cup and a light source board arranged therein. The anti-glare ring is installed in the lamp body and squeezes the reflector cup, which in turn squeezes the light source board, and finally the reflector cup and the light source board are pressed into the lamp body.

[0003] However, in order to avoid the anti-glare ring pressing the reflector cup too tightly, the technicians in the prior art will strictly control the matching dimensions of the parts to prevent the reflector cup from crushing the light source assembly. However, due to the inevitable errors of the parts, there may be a gap between the anti-glare ring and the reflector cup. The anti-glare ring cannot completely press the reflector cup, causing the reflector cup to loosen and collide with other parts, producing abnormal noise. In addition, the reflector cup cannot be pressed, and the light source assembly cannot fully contact with the shell, resulting in poor heat dissipation, easy damage to the light source board, and shortening the life of the downlight. Utility Model Content

[0004] The main purpose of the utility model is to provide a downlight structure, aiming to solve the technical problem in the prior art that the anti-glare ring is pressed against the reflective cup and is prone to being too tight or too loose.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a downlight structure, including a lamp body, an inner side of which is provided with a accommodating cavity, a light source assembly and an anti-glare ring are provided in the accommodating cavity, and the light source assembly and the anti-glare ring are arranged along the bottom to the opening of the accommodating cavity; a first anti-glare ring limiting structure is provided on the inner wall of the accommodating cavity, and a second anti-glare ring limiting structure matching the first anti-glare ring limiting structure is provided on the anti-glare ring, the first anti-glare ring limiting structure and the second anti-glare ring limiting structure are used to install the anti-glare ring in the accommodating cavity and limit the movement of the anti-glare ring toward the opening of the accommodating cavity; an elastic supporting structure is provided on the side of the light source assembly close to the anti-glare ring, and the anti-glare ring presses the light source assembly to the bottom of the accommodating cavity by squeezing the elastic supporting structure.

[0006] The beneficial effects of the utility model are as follows: when assembling the downlight structure, the light source assembly is first placed in the receiving groove, and then the anti-glare ring is installed in the receiving groove through the first anti-glare ring limiting structure and the second anti-glare ring limiting structure. After the anti-glare ring is installed, the anti-glare ring squeezes the elastic support structure, thereby pressing the light source assembly to the bottom of the receiving cavity. Due to the elasticity of the elastic support structure, after the anti-glare ring squeezes the elastic support structure, the pressure is transmitted to the light source assembly through the elastic support structure, so that the light source assembly can be compressed, which can make up for the assembly problem caused by the size error of the anti-glare ring and the light source assembly, prevent some parts in the light source assembly from loosening, eliminate abnormal noise, and can compress the light source assembly, which is beneficial to the heat dissipation of the light source assembly, thereby helping to extend the service life of the downlight.

[0007] Preferably, the light source assembly comprises a light source plate and a reflective cup, the light source plate and the reflective cup are arranged along the bottom to the opening direction of the accommodating cavity, and an elastic supporting structure is provided on one side of the reflective cup close to the anti-glare ring.

[0008] Preferably, the elastic supporting structure comprises an elastic boss arranged on the reflective cup, and the elastic boss protrudes from a side of the reflective cup close to the anti-glare ring.

[0009] Preferably, the reflective cup is provided with an extrusion avoidance groove, which is arranged beside the elastic boss to avoid the elastic boss extending laterally after being squeezed.

[0010] Preferably, the reflective cup and the elastic boss are integrally formed.

[0011] Preferably, the light source assembly further comprises a light source board mounting base, the light source board mounting base is provided with at least one positioning column, the light source board is provided with at least one positioning hole, and the positioning column passes through the positioning hole.

[0012] Preferably, a protrusion is provided on the inner wall of the accommodating cavity, and an installation limit portion is provided on the edge of the light source board mounting base, the installation limit portion corresponds to the position of the protrusion, and the protrusion and the installation limit portion are used to limit the rotation of the light source board mounting base.

[0013] Preferably, the downlight structure further comprises a light-transmitting plate, which is arranged between the light source assembly and the anti-glare ring, and the anti-glare ring presses the light source assembly to the bottom of the accommodating cavity by squeezing the light-transmitting plate.

[0014] Preferably, the first anti-glare ring limiting structure includes a first clamping member, and the second anti-glare ring limiting structure includes a first fastener, and the first fastener is fastened to the first clamping member to limit the movement of the anti-glare ring toward the opening of the accommodating cavity.

[0015] Preferably, a second clamp is provided on the light source assembly, and a second fastener matching the second clamp is provided on the anti-glare ring, and the second fastener is buckled on the second clamp to limit the light source assembly and the anti-glare ring from moving away from each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is an exploded view of the downlight structure in the embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the reflective cup in the embodiment of the utility model;

[0019] Figure 3 for Figure 2 A partial enlarged view of point B in the middle;

[0020] Figure 4 This is a schematic diagram of the structure of the lamp body and the spring clip in the embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the anti-glare ring in the embodiment of the utility model;

[0022] Figure 6 An exploded view of a light source board and a light source board mounting base in an embodiment of the utility model;

[0023] Figure 7 This is a structural schematic diagram of a downlight structure in an embodiment of the utility model;

[0024] Figure 8 for Figure 7 AA section view in;

[0025] Fig. 9 for Figure 7 CC cross-section diagram in .

[0026] In the accompanying drawings: 1-lamp body, 11-accommodating cavity, 112-protruding portion, 1121-first anti-glare ring limiting structure, 1122-third clamping piece, 12-recessed portion, 2-anti-glare ring, 21-second anti-glare ring limiting structure, 22-second fastener, 23-mounting plate, 3-light-transmitting plate, 4-light source assembly, 41-reflective cup, 411-elastic supporting structure, 4111-elastic boss, 412-extrusion avoidance groove, 4121-circumferential groove, 4122-radial groove, 413-second clamping piece, 4131-annular frame, 42-light source board, 421-light-emitting electronic component, 422-positioning hole, 5-light source board mounting base, 51-mounting limiting portion, 52-limiting spring sheet, 53-positioning column, 6-spring clip.

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that if the embodiments of the present invention involve directional indications, such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0031] like Figures 1 to 9 As shown, a downlight structure includes a lamp body 1, an accommodating cavity 11 is provided on the inner side of which, a light source assembly 4 and an anti-glare ring 2 are provided in the accommodating cavity 11, and the light source assembly 4 and the anti-glare ring 2 are arranged along the bottom to the opening direction of the accommodating cavity 11; a first anti-glare ring limiting structure 1121 is provided on the inner wall of the accommodating cavity 11, and a second anti-glare ring limiting structure 21 matching the first anti-glare ring limiting structure 1121 is provided on the anti-glare ring 2, the first anti-glare ring limiting structure 1121 and the second anti-glare ring limiting structure 21 are used to install the anti-glare ring 2 in the accommodating cavity 11 and limit the movement of the anti-glare ring 2 toward the opening of the accommodating cavity 11; an elastic supporting structure 411 is provided on the side of the light source assembly 4 close to the anti-glare ring 2, and the anti-glare ring 2 presses the light source assembly 4 to the bottom of the accommodating cavity 11 by squeezing the elastic supporting structure 411.

[0032] When assembling the downlight structure, first put the light source assembly 4 into the receiving groove 11, and then install the anti-glare ring 2 in the receiving groove 11 through the first anti-glare ring limiting structure 1121 and the second anti-glare ring limiting structure 21. After the anti-glare ring 2 is installed, the anti-glare ring 2 squeezes the elastic support structure 411, thereby pressing the light source assembly 4 to the bottom of the receiving cavity 11. Due to the elasticity of the elastic support structure 411, after the anti-glare ring 2 squeezes the elastic support structure 411, the pressure is transmitted to the light source assembly 4 through the elastic support structure 411, so that the light source assembly 4 can be pressed tightly, which can make up for the assembly problem caused by the size error of the anti-glare ring 2 and the light source assembly 4, prevent some parts in the light source assembly 4 from loosening, eliminate abnormal noise, and can compress the light source assembly 4, which is beneficial to the heat dissipation of the light source assembly 4, thereby helping to extend the service life of the downlight.

[0033] In some specific embodiments, reference Figures 1 to 3 The light source assembly 4 includes a light source board 42 and a reflective cup 41 , which are arranged along the bottom to the opening direction of the accommodating cavity 11 , and an elastic supporting structure 411 is provided on one side of the reflective cup 41 close to the anti-glare ring 2 .

[0034] Specifically, a light-emitting electronic component 421 is provided on the light source board 42, and the light-emitting electronic component 421 is concentrated in the middle of the light source board 42. The reflective cup 41 is located on the side of the light source board 42 close to the opening of the accommodating cavity 11. The reflective cup 41 is pressed on the light source board 42, and the light-emitting electronic component 421 is located on the inner side of the reflective cup 41.

[0035] Furthermore, the light source board 42 is an aluminum substrate, which has good heat dissipation performance and can dissipate heat for the light-emitting electronic component 421 in a timely manner. The elastic support structure 411 provided in this embodiment increases the allowable range of the size error of the anti-glare ring 2 and the reflective cup 41, and the anti-glare ring 2 is less likely to fail to press the reflective cup 41. Therefore, the light source board 42 can also be pressed to the bottom of the accommodating cavity 11 with a relatively suitable pressure, and the aluminum substrate can dissipate the heat of the light-emitting electronic component 421 to the outside of the lamp body 1 in a timely manner.

[0036] In some specific embodiments, reference Figure 2 and Figure 3 The elastic supporting structure 411 includes an elastic boss 4111 disposed on the reflective cup 41 , and the elastic boss 4111 protrudes from a side of the reflective cup 41 close to the anti-glare ring 2 .

[0037] Specifically, an annular frame 4131 is provided on the outer edge of the opening of the reflective cup 41 close to the anti-glare ring 2 , and the elastic boss 4111 is provided on the annular frame 4131 .

[0038] Furthermore, a plurality of elastic bosses 4111 are provided on the annular frame 4131 , and the plurality of elastic bosses 4111 are evenly arranged circumferentially around the axis of the annular frame 4131 .

[0039] In some other embodiments, the reflective cup 41 is provided with an elastic protrusion, which is not necessarily in the shape of a boss, as long as it is elastic and protrudes from the side of the reflective cup close to the anti-glare ring.

[0040] In some other embodiments, the elastic supporting structure 411 is a spring.

[0041] In some specific embodiments, reference Figure 2 and Figure 3 The reflective cup 41 is provided with an extrusion avoidance groove 412 , which is arranged beside the elastic boss 4111 to avoid the elastic boss 4111 extending laterally after being squeezed.

[0042] Specifically, the extrusion avoidance groove 412 includes a circumferential groove 4121 and a radial groove 4122 that are interconnected, and the circumferential groove 4121 and the radial groove 4122 are both adjacent to the elastic boss 4111. The radial groove 4122 extends in the radial direction of the reflective cup 41, and the elastic boss 4111 and the radial groove 4122 are arranged circumferentially around the axis of the reflective cup 41. The circumferential groove 4121 extends circumferentially around the axis of the reflective cup 41, and the circumferential groove 4121 and the elastic boss 4111 are arranged in the radial direction of the reflective cup 41. After the anti-glare ring 2 squeezes the elastic boss 4111, the height of the elastic boss 4111 decreases, and the lateral extension increases the cross-sectional area, and the extrusion avoidance groove 412 is to avoid the part of the elastic boss 4111 that is squeezed and extends laterally, leaving an avoidance space for it to flow out so that it can fully deform and play a role. If the extrusion avoidance groove 412 is not provided, the deformation amount of the elastic boss 4111 is small, the function cannot be fully exerted, and the downlight is easily damaged, which is not conducive to extending the service life of the downlight.

[0043] In some specific embodiments, reference Figure 2 The reflective cup 41 and the elastic boss 4111 are integrally formed.

[0044] Specifically, the reflective cup 41 and the elastic boss 4111 are made of PC plastic in an integral manner, which is beneficial to simplifying the production process and the steps of assembling the downlight and improving the production efficiency.

[0045] In some other embodiments, the reflective cup 41 and the elastic boss 4111 are made of different materials, and then the elastic boss 4111 is installed on the reflective cup 41. For example, the reflective cup 41 is made of metal, and the elastic boss 4111 is made of plastic.

[0046] In some specific embodiments, reference Figure 1 and Figure 6The light source assembly 4 also includes a light source board mounting base 5 , on which at least one positioning column 53 is disposed. The light source board 42 is provided with at least one positioning hole 422 , and the positioning column 53 is inserted into the positioning hole 422 .

[0047] Specifically, a plurality of positioning posts 53 are disposed on the light source board mounting base 5 , a plurality of positioning holes 422 are disposed on the light source board 42 , and the plurality of positioning posts 53 are correspondingly inserted into the plurality of positioning holes 422 to mount and position the light source board 42 .

[0048] The light source board mounting base 5 is provided to avoid direct contact between the light source board 42 and the lamp body 1, thereby reducing the probability of damage to the light source board 42 and the light-emitting electronic component 421 disposed thereon, and is beneficial to extending the service life of the downlight structure.

[0049] In some specific embodiments, reference Figure 4 A protrusion 112 is provided on the inner wall of the accommodating cavity 11, and an installation limit portion 51 is provided on the edge of the light source board mounting base 5. The installation limit portion 51 corresponds to the position of the protrusion 112, and the protrusion 112 and the installation limit portion 51 are used to limit the rotation of the light source board mounting base 5.

[0050] Specifically, the accommodating cavity 11 is a hollow cavity with a circular cross-section, and a protrusion 112 is provided on the inner wall of the accommodating cavity 11, so that at the position corresponding to the light source board mounting base 5, the cross-section of the accommodating cavity 11 is non-circular, cooperating with the installation limit portion 51 of the light source board mounting base 5 to limit the rotation of the light source board mounting base 5.

[0051] The side of the protrusion 112 facing the light source board mounting base 5 is a plane, and the installation limit portion 51 is a straight edge arranged on the light source board mounting base 5, which cooperates with the plane of the side of the protrusion 112 facing the light source board mounting base 5 to limit the rotation of the light source board mounting base 5.

[0052] A third clamping member 1122 is also provided on the protruding portion 112, and a limiting spring sheet 52 is provided on the light source board mounting base 5. After the light source board mounting base 5 is placed at the bottom of the accommodating cavity 11, the limiting spring sheet 52 is reset to between the third clamping member 1122 and the bottom of the accommodating cavity 11 to limit the light source board mounting base 5 from moving toward the opening direction of the accommodating cavity 11.

[0053] Furthermore, two protrusions 112 are provided on the inner wall of the accommodating cavity 11 , and the two protrusions 112 are arranged opposite to each other.

[0054] In some specific embodiments, reference Figure 1 and Figure 8 The downlight structure also includes a light-transmitting plate 3 , which is disposed between the light source assembly 4 and the anti-glare ring 2 . The anti-glare ring 2 presses the light source assembly 4 to the bottom of the accommodating cavity 11 by squeezing the light-transmitting plate 3 .

[0055] In some specific embodiments, reference Figure 4 and Figure 8 The first anti-glare ring limiting structure 1121 includes a first clamping member, and the second anti-glare ring limiting structure 21 includes a first fastener, which is fastened to the first clamping member to limit the anti-glare ring 2 from moving toward the opening of the accommodating cavity 11.

[0056] Specifically, the first clamp is disposed on the protruding portion 112 . A mounting plate 23 is disposed on the outer side of the anti-glare ring 2 , and the first fastener is disposed on a side of the mounting plate 23 close to the protruding portion 112 .

[0057] In some other embodiments, the first anti-glare ring limiting structure 1121 and the second anti-glare ring limiting structure 21 are both limiting holes, and the anti-glare ring 2 is limited from moving toward the opening of the accommodating cavity 11 by inserting screws into the two limiting holes.

[0058] In some specific embodiments, reference Figure 2 A second clamp 413 is provided on the light source assembly 4, and a second fastener 22 matching the second clamp 413 is provided on the anti-glare ring 2. The second fastener 22 is buckled on the second clamp 413 to limit the light source assembly 4 and the anti-glare ring 2 from moving away from each other.

[0059] Specifically, the second clamp 413 is the annular frame 4131. When installing, the reflective cup 41 is pressed into the accommodating cavity 11 so that the annular frame 4131 is limited by the second fastener 22. The second clamp 413 and the second fastener 22 are provided to improve the connection stability between the anti-glare ring 2 and the reflective cup 41.

[0060] In some specific embodiments, reference Figure 4 Two recessed parts 12 are arranged on the outer wall of the lamp body 1, and the two recessed parts 12 are directly opposite to the two protruding parts 112. The downlight structure also includes two spring clips 6, and the two spring clips 6 are respectively located on the two recessed parts 12.

[0061] The recessed portion 12 is provided to reduce the thickness of the lamp body 1 at the position corresponding to the protruding portion 112, reduce the material usage, and improve production efficiency. The spring clip 6 is provided on the recessed portion 12 to improve the appearance of the downlight structure.

[0062] In some specific embodiments, reference Figure 5 The anti-glare ring 2 is provided with a plurality of clamping plates. Since the accommodating cavity 11 is a cavity with a circular cross-section and a gradually decreasing cross-section from the opening to the bottom, when the anti-glare ring 2 is moved to the bottom of the accommodating cavity 11, the clamping plates will gradually clamp onto the inner wall of the accommodating cavity 11, thereby limiting the rotation of the anti-glare ring 2.

[0063] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A downlight structure, characterized in that: The invention comprises a lamp body (1), the inner side of which is provided with a receiving cavity (11), the receiving cavity (11) being provided with a light source assembly (4) and an anti-glare ring (2), the light source assembly (4) and the anti-glare ring (2) being arranged along the direction from the bottom to the opening of the receiving cavity (11); A first anti-glare ring limiting structure (1121) is provided on the inner wall of the accommodating cavity (11), and a second anti-glare ring limiting structure (21) matching the first anti-glare ring limiting structure (1121) is provided on the anti-glare ring (2), and the first anti-glare ring limiting structure (1121) and the second anti-glare ring limiting structure (21) are used to install the anti-glare ring (2) in the accommodating cavity (11) and limit the movement of the anti-glare ring (2) toward the opening of the accommodating cavity (11); An elastic support structure (411) is provided on one side of the light source assembly (4) close to the anti-glare ring (2), and the anti-glare ring (2) presses the light source assembly (4) to the bottom of the accommodating cavity (11) by squeezing the elastic support structure (411).

2. The downlight structure according to claim 1, characterized in that: The light source assembly (4) comprises a light source plate (42) and a reflective cup (41); the light source plate (42) and the reflective cup (41) are arranged along a direction from the bottom of the accommodating cavity (11) to an opening; and the elastic support structure (411) is provided on a side of the reflective cup (41) close to the anti-glare ring (2).

3. The downlight structure according to claim 2, characterized in that: The elastic support structure (411) comprises an elastic boss (4111) provided on the reflective cup (41), wherein the elastic boss (4111) protrudes from a side of the reflective cup (41) close to the anti-glare ring (2).

4. The downlight structure according to claim 3, characterized in that: The reflective cup (41) is provided with an extrusion avoidance groove (412), and the extrusion avoidance groove (412) is arranged beside the elastic boss (4111) to avoid the elastic boss (4111) extending laterally after being squeezed.

5. The downlight structure according to claim 3, characterized in that: The reflective cup (41) and the elastic boss (4111) are integrally formed.

6. The downlight structure according to claim 2, characterized in that: The light source assembly (4) further comprises a light source board mounting base (5), the light source board mounting base (5) being provided with at least one positioning column (53), the light source board (42) being provided with at least one positioning hole (422), the positioning column (53) being inserted into the positioning hole (422).

7. The downlight structure according to claim 6, characterized in that: A protrusion (112) is provided on the inner wall of the accommodating cavity (11), and an installation limit portion (51) is provided on the edge of the light source board mounting base (5), wherein the installation limit portion (51) corresponds to the position of the protrusion (112), and the protrusion (112) and the installation limit portion (51) are used to limit the rotation of the light source board mounting base (5).

8. The downlight structure according to claim 1, characterized in that: The downlight structure also includes a light-transmitting plate (3), wherein the light-transmitting plate (3) is arranged between the light source assembly (4) and the anti-glare ring (2), and the anti-glare ring (2) presses the light source assembly (4) to the bottom of the accommodating cavity (11) by squeezing the light-transmitting plate (3).

9. The downlight structure according to claim 1, characterized in that: The first anti-glare ring limiting structure (1121) comprises a first clamping member, and the second anti-glare ring limiting structure (21) comprises a first fastener, wherein the first fastener is fastened to the first clamping member to limit the movement of the anti-glare ring (2) toward the opening of the accommodating cavity (11).

10. The downlight structure according to claim 1, characterized in that: The light source assembly (4) is provided with a second clamping member (413), the anti-glare ring (2) is provided with a second fastener (22) matching the second clamping member (413), and the second fastener (22) is fastened to the second clamping member (413) to restrict the light source assembly (4) and the anti-glare ring (2) from moving away from each other.

Images