LED lamp radiator

Abstract

The utility model discloses a light-emitting diode (LED) lamp radiator, which belongs to the technical field of LED lamps and is characterized in that a first limiting step is arranged on the inner wall of an opening of the radiator, the first limiting step is used for realizing axial anti-dropping matching with a lamp shade, a blocking piece is arranged at the joint of the radiator and the lamp shade, and the blocking piece partially extends towards the direction of the lamp shade. And a space for the opening of the lampshade to extend into is formed between the inner wall of the radiator and the blocking piece. Due to the fact that the structural strength of the radiator and the opening of the lampshade is relatively low, the opening of the lampshade extends into the position between the blocking piece and the radiator, the strength of the connecting position of the opening can be improved, when the opening of the radiator is extruded by external force, the lampshade and the blocking piece can abut against the radiator to form stable supporting and limiting effects, and the radiator is prevented from being easily deformed; therefore, deformation is not easy to occur in a drop test, and the product quality is ensured.

Description

[0001] This utility model application is based on the Chinese patent number filed by the applicant on December 1, 2023

[0002] 202323281787.7, a divisional application filed with the patent name “A LED lamp”. Technical Field

[0003] The utility model belongs to the technical field of LED lighting, in particular to an LED lamp. Background Art

[0004] With the continuous development of LED lights, higher requirements are placed on product quality and cost. In addition, the demand for LED lights is huge, and every process of the product is crucial.

[0005] For the assembly connection of LED lampshades and heat sinks, existing common connection methods include: 1) using glue to achieve fixed assembly of the two, which has a high manufacturing cost, and the glue is easy to produce odor and cause pollution; 2) forming convex teeth on the LED lampshade and the heat sink respectively, and using the convex teeth to clamp each other to achieve fixed assembly of the two, but this connection method will weaken the product strength or even cause deformation when the LED lamp is large or the LED lampshade is thin, causing the LED lampshade and the heat sink to fall off each other; 3) using ultrasonic method to achieve the connection between the two, which has a high production cost. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a LED lamp heat sink, which facilitates the heat sink and the lampshade to form a firmly matched structure.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A LED lamp radiator, wherein the inner wall of the opening of the radiator is provided with a first limiting step, the first limiting step is used to achieve axial anti-slip cooperation with the lampshade, the radiator is provided with a stopper at the connection with the lampshade, and the stopper part extends in the direction of the lampshade to form a space between the inner wall of the radiator and the stopper for the lampshade opening to extend into.

[0009] In the above technical scheme, the first limiting step is used to achieve axial anti-slip cooperation with the lampshade to ensure the stable assembly of the radiator and the lampshade, and the radiator is provided with a stopper at the connection with the lampshade. Since the structural strength of the radiator and the lampshade openings is relatively low, the opening of the lampshade extends between the stopper and the radiator, which can increase the strength of the opening connection. When the radiator opening is squeezed by external force, the lampshade and the stopper can offset each other to form a stable support and limiting effect on the radiator, avoiding it from being easily deformed, ensuring that it will not be easily deformed during the drop test, and ensuring the quality of the product.

[0010] Furthermore, the blocking member includes a transverse portion connected to the inner wall of the radiator, and a vertical portion connected to a side of the transverse portion away from the inner wall of the radiator and extending toward the direction of the lampshade.

[0011] In the above technical solution, the structure of the blocking member is relatively simple, and the lateral portion is connected to the inner wall of the radiator, which can also increase the strength of the radiator.

[0012] Furthermore, a reinforcement portion is provided at the connection between the vertical portion and the horizontal portion.

[0013] In the above technical solution, the reinforcement part can increase the structural strength of the blocking member to prevent it from being easily deformed after being subjected to external force, and also play a role in increasing the structural strength of the connection between the radiator and the lampshade.

[0014] Furthermore, the outer side wall of the vertical portion facing the inner wall of the radiator forms at least a first inclined guide surface, so as to facilitate the insertion of the lampshade opening between the inner wall of the radiator and the blocking member.

[0015] In the above technical solution, the first inclined guide surface plays a role of pre-positioning, which facilitates the downward insertion of the lampshade opening between the inner wall of the radiator and the stopper, reduces the difficulty of assembly and speeds up the assembly.

[0016] Furthermore, a second inclined guide surface is formed on the outer side wall of the vertical portion toward the inner wall of the radiator, and the second inclined guide surface is located between the reinforcement portion and the first inclined guide surface, and an inclination angle is greater than an inclination angle of the first inclined guide surface, so as to facilitate the insertion of the lampshade opening between the inner wall of the radiator and the baffle.

[0017] In the above technical solution, the second inclined guide surface can further accelerate the assembly of the lampshade and the heat sink based on the first inclined guide surface.

[0018] Furthermore, an inner side wall of the vertical portion facing away from the inner wall of the radiator is formed with an inclined surface to increase the thickness of the reinforcement portion.

[0019] In the above technical solution, the setting of the inclined surface increases the thickness of the reinforcement part, thereby increasing the structural strength of the stopper, and also facilitates demoulding during processing.

[0020] Furthermore, the inner wall of the opening of the heat sink is provided with a first latching tooth, and the first latching tooth and the lampshade are engaged with each other in a circumferential direction to prevent rotation.

[0021] The above technical solution realizes circumferential rotation prevention between the heat sink and the lampshade.

[0022] Furthermore, a stop edge is provided at the upper opening of the radiator, and the first limiting step is located on the inner wall of the stop edge of the radiator.

[0023] Furthermore, the first latching teeth are located on the inner wall of the retaining edge of the heat sink, and a plurality of first latching teeth are staggeredly distributed with the first limiting step; and / or the first latching teeth form a V-shape with an opening facing downwards toward a side of the lampshade.

[0024] Furthermore, a convex rib is provided between the baffle and the inner wall of the radiator, and the convex rib and the lampshade realize circumferential anti-rotation cooperation; and / or, the first limiting step is intermittently arranged along a circumference of the radiator, and extends obliquely from top to bottom and from outside to inside toward a side of the center of the LED lamp.

[0025] The above technical solution realizes circumferential rotation prevention between the heat sink and the lampshade by designing convex ribs.

[0026] The beneficial effects of the utility model are as follows: axial, circumferential and radial limiting cooperation of the radiator and the lampshade are achieved to ensure the stable assembly of the radiator and the lampshade; the baffle can increase the strength of the open connection thereof, reduce the possibility of deformation caused by force in this area, ensure that it will not be easily deformed during a drop test, and ensure the quality of the product; the structure of the baffle is relatively simple and the structural strength is high, which prevents it from being easily deformed after being subjected to external force, and also increases the structural strength of the connection between the radiator and the lampshade; the setting of the baffle facilitates the rapid assembly of the radiator and the lampshade, and reduces the difficulty of assembly of the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a front view of the LED lamp in the first embodiment of the utility model.

[0028] Figure 2 for Figure 1 OO section view in.

[0029] Figure 3 for Figure 2 A magnified view of the structure in Figure 2.

[0030] Figure 4 This is a planar cross-sectional view of the LED lamp in the first embodiment of the utility model.

[0031] Figure 5 for Figure 4 Enlarged view of the structure at B in the figure.

[0032] Figure 6 This is a three-dimensional cross-sectional view of the LED lamp in the first embodiment of the utility model.

[0033] Figure 7 for Figure 6 Enlarged view of the structure at position C in the figure.

[0034] Figure 8 It is a schematic diagram of the three-dimensional structure of the radiator in the first embodiment of the utility model.

[0035] Fig. 9 for Figure 8 Enlarged view of the structure at D in .

[0036] Fig.10 It is a planar cross-sectional view of the radiator in the first embodiment of the utility model.

[0037] Fig.11 It is a top view of the radiator in the first embodiment of the utility model.

[0038] Fig.12 It is a schematic diagram of the three-dimensional structure of the lampshade in the first embodiment of the utility model.

[0039] Fig.13 This is a front view of the lampshade in the first embodiment of the utility model.

[0040] Fig.14 This is a planar cross-sectional view of the lampshade in the first embodiment of the present utility model.

[0041] Fig.15 It is a schematic diagram of the three-dimensional structure of the radiator in the second embodiment of the utility model.

[0042] Fig.16 for Fig.15 Enlarged view of the structure at E in FIG.

[0043] Fig.17 It is a schematic diagram of the three-dimensional structure of the lampshade in the second embodiment of the present utility model.

[0044] Fig.18 This is a three-dimensional cross-sectional view of the LED lamp in the second embodiment of the present utility model.

[0045] Fig.19 for Fig.18 Enlarged view of the structure at F in .

[0046] Fig. 20 It is a schematic diagram of the three-dimensional structure of the radiator in the third embodiment of the present utility model.

[0047] Fig.21 for Fig. 20 Enlarged view of the structure at G in .

[0048] Among them, 1-heat sink, 11-blocking edge, 2-lamp cover, 21-extension section, 22-step structure, 3-limiting assembly, 31-first limiting step, 32-second limiting step, 4-clamping assembly, 41-first clamping tooth, 411-thinning portion, 42-second clamping tooth, 43-convex rib, 44-notch groove, 5-blocking member, 51-transverse portion, 52-vertical portion, 53-reinforcement portion, 54-first inclined guide surface, 55-second inclined guide surface, 56-inclined surface. DETAILED DESCRIPTION

[0049] In order to enable those skilled in the art to better understand the solution of the utility model, 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 should fall within the scope of protection of the utility model.

[0050] Embodiment 1

[0051] like Figure 1-Figure 14 As shown, an LED lamp includes a heat sink 1 and a lampshade 2. The connection between the heat sink 1 and the lampshade 2 is achieved by a limit assembly 3 to prevent the axial disengagement of the two. Figure 1 The up and down directions shown are axial, and the connection is Figure 1 The dotted line in the figure indicates the area H; the connection H between the radiator 1 and the lampshade 2 realizes the circumferential anti-rotation fit between the two through the clamping assembly 4, that is, the clamping assembly 4 prevents the radiator 1 and the lampshade 2 from rotating relative to each other; and a stopper 5 is provided on the radiator 1 at the connection H. Of course, the stopper 5 can also be provided on the lampshade 2. The function of the stopper 5 is to form a radial fit between the radiator 1 and the lampshade 2. Here, the radial fit means that the radiator 1 and the lampshade 2 will not rotate radially at the location where the stopper 5 is provided. Figure 1 There is no lateral (lateral) displacement or radial deformation in the product, or the radial displacement or radial deformation that occurs is very small and will not affect the product.

[0052] Specifically, Figure 3 As shown, in this embodiment, the stopper 5 is arranged on the radiator 1, and part of the stopper 5 extends in the direction of the lampshade 2, so that a space is formed between the inner wall of the radiator 1 and the stopper 5 for the opening of the lampshade 2 to extend into. After the radiator 1 and the lampshade 2 are assembled and connected, the lampshade 2 will not shift or deform inwardly under the support and restriction of the stopper 5.

[0053] like Figure 3 , Figure 8 , Fig.12 As shown, in this embodiment, the lower opening of the lampshade 2 has an extension section 21, and the outer wall of the extension section 21 is formed with a step structure 22. The upper opening of the radiator 1 forms a retaining edge 11 that can resist the step structure 22. The extension section 21 and the retaining edge 11 are buckled inside and outside to form a connection H structure.

[0054] The limiting assembly 3 includes a first limiting step 31 arranged on the inner wall of the opening of the radiator 1 and a second limiting step 32 arranged on the outer wall of the opening of the lampshade 2. The first limiting step 31 and the second limiting step 32 are buckled up and down to achieve axial anti-slip fit between the radiator 1 and the lampshade 2.

[0055] In this embodiment, the first limiting step 31 is located on the inner wall of the retaining edge 11 of the heat sink 1, which is intermittently arranged along a circumferential circle and extends obliquely from top to bottom and from outside to inside toward a side of the center of the LED lamp (with a Fig.10 The second limiting step 32 is located on the outer wall of the extension section 21 of the lampshade 2, and is arranged corresponding to the first limiting step 31, such as Figure 5 As shown, the side facing away from the center of the LED lamp extends obliquely from top to bottom and from outside to inside. Therefore, when assembled, the heat sink 1 and the lampshade 2 are buckled toward each other, and the second limit step 32 slides against the first limit step 31 until the second limit step 32 falls under the first limit step 31, and the stop edge 11 and the step structure 22 are against each other. Of course, in other embodiments, the limit assembly 3 can also adopt other structures to achieve axial anti-slip of the heat sink 1 and the lampshade 2, such as a hook structure, etc., which is not specifically limited.

[0056] like Figure 9-12 As shown, the snap-on assembly 4 includes a first latch tooth 41 arranged on the inner wall of the opening of the radiator 1, and a second latch tooth 42 arranged on the outer wall of the opening of the lampshade 2. The spacing between at least two adjacent second latch teeth 42 is adapted to the circumferential width of the first latch tooth 41. The first latch tooth 41 and the second latch tooth 42 are circumferentially engaged to achieve circumferential anti-rotation fit between the radiator 1 and the lampshade 2.

[0057] Specifically, the first latching teeth 41 are located on the inner wall of the retaining edge 11 of the radiator 1, and the plurality of first latching teeth 41 are staggered with the first limiting step 31. The second latching teeth 42 are located on the outer wall of the extension section 21 of the lampshade 2, and are arranged in a circle around the opening of the lampshade 2 at intervals, and the spacing between adjacent second latching teeth 42 is substantially equal to the width of the first latching teeth 41. Of course, in other embodiments, the second latching teeth 42 may not be distributed all around the opening of the lampshade 2, but only in the area corresponding to the first latching teeth 41, and there is no specific limitation.

[0058] In particular, the upper end surface of the second latching tooth 42 (with Fig.13 In other words, the second latching teeth 42 play a role in both the axial anti-slip and circumferential anti-rotation cooperation of the heat sink 1 and the lampshade 2.

[0059] In order to facilitate the assembly of the first latch tooth 41 and the second latch tooth 42, the first latch tooth 41 forms a V-shape with the opening facing downward on one side of the lampshade 2, and the second latch tooth 42 forms a V-shape with the opening facing upward on one side of the radiator 1, so that the above structure plays a guiding role, making it easy for the second latch tooth 41 to be quickly inserted between adjacent second latch teeth 42.

[0060] In this embodiment, the blocking member 5 is disposed opposite to the snap-in assembly 4 . Of course, in other embodiments, the blocking member 5 is disposed opposite to part of the snap-in assembly 4 , or the blocking member 5 may also extend around a circle of the radiator 1 .

[0061] like Figure 3 , Figure 5 , Figure 7 As shown, the blocking member 5 includes a transverse portion 51 connected to the inner wall of the radiator 1, and a vertical portion 52 connected to the side of the transverse portion 51 away from the inner wall of the radiator 1 and extending toward the direction of the lampshade 2. In other words, the cross section of the blocking member 5 is L-shaped, and the open side end of the transverse portion 51 is connected to the inner wall of the radiator 1.

[0062] A reinforcing portion 53 is formed at the connection between the transverse portion 51 and the vertical portion 52. In this embodiment, the reinforcing portion 53 is formed by increasing the thickness of the connection between the transverse portion 51 and the vertical portion 52. The side of the reinforcing portion 53 facing the inner wall of the radiator 1 is an inclined surface.

[0063] like Figure 5 As shown, the vertical portion 52 forms at least a first inclined guide surface 54 on the outer side wall of the inner wall of the radiator 1. When the extension section 21 of the lampshade 2 extends into the space between the inner wall of the radiator 1 and the stopper 5, the first inclined guide surface 54 plays a guiding role, facilitating the rapid extension of the extension section 21.

[0064] Furthermore, a second inclined guide surface 55 is formed on the outer side wall of the vertical portion 52 facing the inner wall of the radiator 1 , which is located between the reinforcing portion 53 and the first inclined guide surface 54 , and has an inclination angle greater than that of the first inclined guide surface 54 .

[0065] In summary, the first inclined guide surface 54, the second inclined guide surface 55 and the reinforcement portion 53 are arranged in sequence from top to bottom. At the same time, the inner side wall of the vertical portion 52 away from the inner wall of the radiator 1 is also formed with an inclined surface 56, which extends from top to bottom and from outside to inside, thereby increasing the thickness of the reinforcement portion 53 and facilitating processing and demoulding.

[0066] In order to ensure that the first limiting step 31 and the second limiting step 32 remain firmly engaged and avoid the radiator 1 and the lampshade 2 from separating due to radial displacement, even if there is space between the inner wall of the radiator 1 and the vertical portion 52 of the baffle 5, the space gap is smaller than the thickness of the first limiting step 31 or the second limiting step 32.

[0067] When the radiator 1 and the lampshade 2 are assembled, the first limiting step 31 and the second limiting step 32 are buckled up and down to realize the axial anti-detachment cooperation of the radiator 1 and the lampshade 2, that is, the radiator 1 and the lampshade 2 will not separate up and down; the first latch tooth 41 and the second latch tooth 42 are buckled left and right to realize the circumferential anti-rotation cooperation of the radiator 1 and the lampshade 2, that is, the radiator 1 and the lampshade 2 will not have circumferential deflection; the retaining edge 11, the extension section 21 and the vertical part 52 of the retaining member 5 realize the radial cooperation of the radiator 1 and the lampshade 2, that is, the radiator 1 and the lampshade 2 will not have radial deviation, and even if the volume of the LED lamp is increased or the thickness of the LED lamp is decreased, the H structure strength of the opening connection between the radiator 1 and the lampshade 2 is higher, and it will not be easily deformed when subjected to external force, especially in the drop test.

[0068] Embodiment 2

[0069] like Figure 15-19 As shown, the snap-on assembly 4 includes a rib 43 disposed between the stopper 5 and the inner wall of the heat sink 1 , and a notch 44 disposed at the opening of the lampshade 2 . The rib 43 is inserted into the notch 44 to achieve circumferential anti-rotation fit between the heat sink 1 and the lampshade 2 .

[0070] In this embodiment, the notch grooves 44 are disposed between adjacent second latch teeth 42 , and are evenly spaced around the opening of the lampshade 2 .

[0071] The ribs 43 are connected to the inner wall of the radiator 1, the transverse portion 51 and the vertical portion 52 of the baffle 5, respectively, so that the overall strength is higher. The top of the ribs 43 also forms a V-shaped structure with the opening facing downward, and the top of the ribs 43 is higher than the top of the vertical portion 52. Of course, in other embodiments, the top of the ribs 43 can be flush with the top of the vertical portion 52, or lower than the top of the vertical portion 52, without specific limitation.

[0072] At this time, the structure of the blocking member 5 may be the same as that of the first embodiment, and the reinforcement structure may not be provided, and there is no specific limitation.

[0073] The other structures are the same as those in the first embodiment and will not be described in detail.

[0074] Embodiment 3

[0075] like Fig. 20 , Fig.21 As shown, in this embodiment, the first latching tooth 41 is provided with a thinning portion 411 , so that the wall thickness at the opening of the radiator 1 is not too large due to the large thickness of the first latching tooth 41 , which ultimately causes deformation of the radiator 1 .

[0076] Each first latching tooth 41 may have a thinning portion 411 , or a plurality of first latching teeth 41 may have thinning portions 411 , and the specific number is not limited.

[0077] The other structures are the same as those in the first embodiment and will not be described in detail.

[0078] Embodiment 4

[0079] The baffle 5 can be set not only on the radiator 1, but also on the lampshade 2. In this case, part of the baffle 5 extends toward the radiator 1, thereby forming a space between the inner wall of the lampshade 2 and the baffle 5 for the opening of the radiator 1 to extend into. In this case, the baffle 5 is located radially inward of the opening of the radiator 1.

[0080] At this time, the extension section of the lampshade 2 is located radially outside the radiator 1, and the step structure is located inside the extension section. The specific implementation of the limit assembly 3 and the clamping assembly 4 is the same as that of the first embodiment, except that the setting position is changed, and the details are not repeated.

[0081] In other words, a space is formed between the outer wall of the lampshade 2 and the stopper 5 for the opening of the radiator 1 to extend into, and the stopper 5 is located radially outside the opening of the radiator 1. At this time, the extension section of the lampshade 2 is located radially inside the radiator 1, and the step structure is located outside the extension section.

[0082] Of course, other embodiments do not exclude the structure in which part of the blocking member 5 is located on the heat sink 1 and the other part of the blocking member 5 is located on the lampshade 2 .

[0083] The above specific implementation modes are used to explain the present invention rather than to limit the present invention. Any modification and change made to the present invention within the spirit of the present invention and the protection scope of the claims shall fall within the protection scope of the present invention.

Claims

1. A LED lamp heat sink, characterized in that: The inner wall of the opening of the radiator is provided with a first limiting step, and the first limiting step is used to achieve axial anti-slip cooperation with the lampshade. The radiator is provided with a stopper at the connection with the lampshade, and the stopper part extends in the direction of the lampshade to form a space between the inner wall of the radiator and the stopper for the lampshade opening to extend into.

2. The LED lamp heat sink according to claim 1, characterized in that: The blocking member comprises a transverse portion connected to the inner wall of the radiator, and a vertical portion connected to a side of the transverse portion away from the inner wall of the radiator and extending toward the direction where the lampshade is located.

3. The LED lamp heat sink according to claim 2, characterized in that: A reinforcement portion is provided at the connection between the vertical portion and the transverse portion.

4. The LED lamp heat sink according to claim 3, characterized in that: The outer side wall of the vertical portion facing the inner wall of the radiator at least forms a first inclined guiding surface, so as to facilitate the insertion of the lampshade opening between the inner wall of the radiator and the blocking member.

5. The LED lamp heat sink according to claim 4, characterized in that: The outer side wall of the vertical portion toward the inner wall of the radiator forms a second inclined guide surface, the second inclined guide surface is located between the reinforcement portion and the first inclined guide surface, and the inclination angle is greater than the inclination angle of the first inclined guide surface, so as to facilitate the insertion of the lampshade opening between the inner wall of the radiator and the baffle.

6. The LED lamp heat sink according to claim 3, characterized in that: An inner side wall of the vertical portion facing away from the inner wall of the radiator is formed with an inclined surface to increase the thickness of the reinforcement portion.

7. The LED lamp heat sink according to claim 1, characterized in that: The inner wall of the opening of the radiator is provided with a first latching tooth, and the first latching tooth and the lampshade are matched to achieve circumferential rotation prevention.

8. The LED lamp heat sink according to claim 7, characterized in that: A stop edge is provided at the upper opening of the radiator, and the first limiting step is located on the inner wall of the stop edge of the radiator.

9. The LED lamp heat sink according to claim 8, characterized in that: The first latching teeth are located on the inner wall of the retaining edge of the heat sink, and a plurality of first latching teeth are staggeredly distributed with the first limiting step; and / or the first latching teeth form a V-shape with an opening facing downwards toward a side of the lampshade.

10. The LED lamp heat sink according to claim 1, characterized in that: A convex rib is provided between the baffle and the inner wall of the radiator, and the convex rib and the lampshade realize circumferential anti-rotation cooperation; and / or, the first limiting step is intermittently arranged along a circumference of the radiator, and extends obliquely from top to bottom and from outside to inside toward a side of the center of the LED lamp.

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