Face ring assembly for ceiling downlights and ceiling downlights having the same.

Abstract

This utility model relates to the field of lighting fixture technology, and discloses a face ring assembly for a ceiling downlight and a ceiling downlight having the same. The ceiling downlight includes a heat sink, a face ring assembly, a light source assembly, a spring bead located on the heat sink, and a reflector cup fixed on the heat sink. The inner wall of the face ring assembly is provided with circumferentially distributed annular grooves to restrict the vertical movement of the spring bead. The inner wall of the face ring assembly is also provided with through grooves distributed along the height direction to guide the vertical movement of the spring bead. The through grooves and annular grooves are alternately arranged circumferentially along the inner wall of the face ring assembly, and the through grooves and annular grooves are interconnected. Protruding limiting ribs are provided between the through grooves. The limiting ribs are arranged in a ring to limit the depth of the bottom of the reflector cup entering the face ring assembly, and can provide cushioning when the heat sink falls. This solves the problem that the heat sink is not easy to disassemble in small downlights and that small downlights are difficult to maintain.

Description

Technical Field

[0001] This utility model relates to the field of lighting fixtures, specifically to a face ring assembly for a ceiling downlight and a ceiling downlight having the same. Background Technology

[0002] Existing downlights typically consist of a heat dissipation module and a face ring module. During installation, the face ring assembly is first inserted into the opening in the ceiling, and then the heat sink is installed into the face ring assembly from below. Disassembly involves first removing the reflector from the heat sink, then pulling the hanging ring on the heat sink to lower it, allowing for the replacement of the light source or driver.

[0003] For small downlights, space is limited, making it impossible to install pull rings on the radiator or directly pull out the radiator by snapping on the reflector, or even pull out the radiator directly, resulting in the difficulty of maintaining small downlights. Utility Model Content

[0004] In view of this, the present invention provides a face ring assembly for ceiling downlights and a ceiling downlight having the same, to solve the problem of difficult maintenance of small downlights.

[0005] In a first aspect, this utility model provides a face ring assembly for a ceiling downlight, the ceiling downlight including a heat sink, a face ring assembly, a light source assembly, a spring bead located on the heat sink, and a reflector cup fixed on the heat sink; the inner wall of the face ring assembly is provided with circumferentially distributed annular grooves to restrict the vertical movement of the spring bead, and the inner wall of the face ring assembly is also provided with through grooves distributed along the height direction to guide the vertical movement of the spring bead, the through grooves and the annular grooves are alternately arranged along the circumferential direction of the inner wall of the face ring assembly, and the through grooves and the annular grooves are interconnected; protruding limiting ribs are provided between the through grooves, the limiting ribs are arranged in a ring to limit the depth of the bottom of the reflector cup entering the face ring assembly, and can provide cushioning when the heat sink falls.

[0006] Beneficial effects: The spring beads on the heat sink are compact and occupy little space, making them suitable for use in space-constrained lighting fixtures. Their simple structure also facilitates installation. Circumferentially distributed annular grooves on the inner wall of the face ring assembly fix the spring beads within them, restricting their vertical movement while allowing horizontal movement. Through grooves distributed along the height of the inner wall of the face ring assembly connect with the annular grooves, allowing the spring beads to rotate from the annular grooves into the through grooves, removing the vertical positional restriction and enabling vertical movement guided by the through grooves. The interaction between the annular grooves, through grooves, and spring beads facilitates heat sink disassembly and maintenance. Limiting ribs between the through grooves restrict the depth to which the reflector cup enters the face ring assembly during disassembly, preventing the heat sink from detaching and falling into the ceiling. They also act as a buffer during the heat sink's descent, preventing excessive speed and potential fall.

[0007] During the disassembly of the radiator, firstly, push the radiator upward and rotate it simultaneously to disengage the spring ball from the annular groove and slide it into the through groove. Then, the spring ball falls along the through groove to the limit stop rib. The limit stop rib acts as a buffer to prevent the spring ball from falling further. At this point, there is enough space below the face ring assembly for the disassembly personnel to pull the radiator and apply pulling force to make the spring ball pass through the limit stop rib, completing the disassembly and proceeding with subsequent operations.

[0008] In one alternative embodiment, the annular groove has a rectangular cross-section, the opening width of the annular groove is smaller than the diameter of the spring bead, and the annular groove is parallel to the bottom surface of the face ring assembly.

[0009] Beneficial effects: By setting the cross-section of the annular groove to a rectangle, the right-angled side of the annular groove can better hold the spring ball and restrict its movement in the vertical direction. The opening width of the annular groove is smaller than the diameter of the spring ball, which can better play a fixing role and realize the fixation of the spring ball by the annular groove.

[0010] In one alternative embodiment, the number of through slots is at least two, and the through slots are arranged in a ring and dispersedly on the face ring assembly.

[0011] Beneficial effects: Setting multiple through slots allows the spring beads to easily rotate into the through slots and disengage from the annular slots. This reduces the required rotation angle of the radiator during disassembly, making the disassembly process simpler.

[0012] In one alternative embodiment, the opening depth of the through groove is greater than the opening depth of the annular groove.

[0013] Beneficial effects: The opening depth of the through groove is greater than that of the annular groove, which makes it easier for the spring ball to disengage from the annular groove and rotate into the through groove. At the same time, it can prevent the spring ball from sliding into the annular groove due to the rotation of the radiator while falling along the through groove, thus preventing it from being disassembled smoothly.

[0014] In one alternative embodiment, one sidewall of the through slot is configured as an arc surface to provide cushioning during the descent of the radiator, and the opening at the lower end of the through slot is smaller than the opening at the upper end of the through slot.

[0015] Beneficial effect: By making one side wall of the through groove curved, and the opening at the lower end of the through groove smaller than the opening at the upper end of the through groove, the spring ball can fall slowly along the curved surface, providing a buffer during the descent of the heat sink and preventing the heat sink from falling too quickly, which could cause a large impact on the lamp structure and easily damage the lamp structure.

[0016] In one optional embodiment, when the spring bead is in the fully extended state, the gap between the spring bead and the inner wall of the face ring assembly is δ1; when the spring bead is in the fully retracted state, the gap between the spring bead and the inner wall of the face ring assembly is δ2; and the height of the limiting rib is h, where δ1 < h < δ2.

[0017] Beneficial effects: When the height of the limiting rib is greater than the gap between the spring ball and the inner wall of the face ring assembly when the spring ball is fully extended, the limiting rib can block the spring ball and prevent the radiator from falling directly. When the height of the limiting rib is less than the gap between the spring ball and the inner wall of the face ring assembly when the spring ball is fully retracted, it can ensure that when an external force is applied to pull the radiator, the spring ball can pass smoothly through the limiting rib, thus enabling the radiator to be disassembled.

[0018] In one alternative embodiment, the gap between the bottom of the reflector cup and the inner wall of the face ring assembly is δ3, where h > δ3.

[0019] Beneficial effect: By setting the limiting baffle to a height greater than the gap between the bottom of the reflector cup and the inner wall of the face ring assembly, the limiting baffle can block the bottom of the reflector cup during the upward pushing of the heat sink, limiting the depth of the bottom of the reflector cup into the face ring assembly, preventing the heat sink from detaching from the face ring assembly and entering the ceiling, making it difficult to disassemble and remove, thus affecting the user experience.

[0020] Secondly, this utility model also provides a ceiling downlight, including a heat sink, a face ring assembly, a light source assembly, a spring bead located on the heat sink, and a reflector cup fixed on the heat sink.

[0021] Beneficial effects: Since ceiling downlights include a face ring assembly, they have the same effect as face ring assemblies, which will not be elaborated here.

[0022] In one optional embodiment, the number of spring beads is at least two, and the number of spring beads is not greater than the number of through slots, the spring beads being used to fix the heat sink.

[0023] Beneficial effects: Setting the number of spring beads to multiple can more stably fix the radiator, distribute the force evenly, prevent the radiator from becoming unstable, and when one spring bead fails and loses its function, the other spring beads can maintain the structure and continue to work; the number of spring beads is no greater than the number of through slots, so that each spring bead has a corresponding through slot, which can realize the disassembly of the radiator. The spring bead can be disengaged from the annular groove and slide into the through slot by rotating the radiator by a small angle.

[0024] In one optional embodiment, a plurality of spring beads are arranged in a ring at intervals, forming a ring parallel to the bottom surface of the face ring assembly, and the positions of the spring beads are configured such that each of the spring beads corresponds to one of the through slots.

[0025] Beneficial effects: Multiple spring beads are arranged in a ring at intervals, and the ring is parallel to the bottom surface of the face ring assembly. Multiple spring beads can distribute the load and fix the heat sink from multiple directions, preventing the heat sink from tilting and increasing the stability of the structure. The position of the spring beads is such that each spring bead can correspond to a through slot, which allows the heat sink to be disassembled normally. If the condition that each spring bead can not correspond to a through slot is not met, some spring beads will be blocked by the ring slot and cannot move up and down, making it impossible to disassemble the heat sink. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the split structure of the ceiling downlight according to an embodiment of the present utility model;

[0028] Figure 2 for Figure 1 The diagram shows the structure of the ceiling downlight in operation.

[0029] Figure 3 for Figure 1The diagram shows the ceiling downlight in the initial stage of disassembly.

[0030] Figure 4 for Figure 1 The diagram shows a ceiling downlight in the middle of disassembly.

[0031] Figure 5 for Figure 1 The diagram shows the ceiling downlight after it has been disassembled.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Heat sink; 11. Spring ball; 2. Face ring assembly; 21. Annular groove; 22. Through groove; 23. Limiting rib; 3. Reflector cup. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] The following is combined Figures 1 to 5 The following describes embodiments of the present invention.

[0036] like Figures 1 to 5 According to an embodiment of the present invention, in one aspect, a face ring assembly for a ceiling downlight is provided. The ceiling downlight includes a heat sink 1, a face ring assembly 2, a light source assembly, a spring bead 11 located on the heat sink 1, and a reflector cup 3 fixed on the heat sink 1. The inner wall of the face ring assembly 2 is provided with circumferentially distributed annular grooves 21 to restrict the up-and-down movement of the spring bead 11. The inner wall of the face ring assembly 2 is also provided with through grooves 22 distributed along the height direction to guide the up-and-down movement of the spring bead 11. The through grooves 22 and the annular grooves 21 are alternately arranged circumferentially along the inner wall of the face ring assembly 2, and the through grooves 22 and the annular grooves 21 are connected to each other. Protruding limiting ribs 23 are provided between the through grooves 22. The limiting ribs 23 are arranged in a ring to limit the depth of the bottom of the reflector cup 3 entering the face ring assembly 2 and to provide cushioning when the heat sink 1 falls.

[0037] In this embodiment, a spring bead 11 is provided on the heat sink 1. The spring bead 11 has a compact structure, occupies little space, and is suitable for use in space-constrained lighting fixtures. Furthermore, the spring bead structure is simple and easy to install. A circumferentially distributed annular groove 21 is provided on the inner wall of the face ring assembly 2, which can fix the spring bead 11 within the annular groove 21, restricting its vertical movement while allowing it to move horizontally. A through groove 22 distributed along the height direction is provided on the inner wall of the face ring assembly 2. The through groove 22 and the annular groove 21 communicate with each other, allowing the spring bead 11 to rotate from the annular groove 21. The spring bead 11 is released from its vertical position restriction in the through groove 22 and moves up and down under the guidance of the through groove 22. The radiator 1 can be disassembled through the cooperation between the annular groove 21, the through groove 22 and the spring bead 11, which facilitates the maintenance of the lamp. The limiting rib 23 is set between the through grooves 22 to limit the depth of the bottom of the reflector cup 3 into the face ring assembly 2 during the disassembly of the radiator 1, to prevent the radiator 1 from falling off the face ring assembly 2 and falling into the ceiling. It can also play a buffer role during the fall of the radiator 1 to prevent the radiator 1 from falling too fast and causing the risk of falling.

[0038] During the disassembly of radiator 1, firstly, radiator 1 is pushed upward and rotated simultaneously, causing spring ball 11 to disengage from annular groove 21 and slide into through groove 22. Then, spring ball 11 falls along through groove 22 to the limiting stop rib 23. The limiting stop rib 23 acts as a buffer, preventing spring ball 11 from falling further. At this time, there is enough space below the face ring assembly 2 for the disassembly personnel to pull radiator 1 and apply pulling force to make spring ball 11 pass through the limiting stop rib 23, completing the disassembly and proceeding to subsequent operations.

[0039] like Figures 1 to 5 As shown, in one embodiment, the cross-section of the annular groove 21 is rectangular, the opening width of the annular groove 21 is smaller than the diameter of the spring bead 11, and the annular groove 21 is parallel to the bottom surface of the face ring assembly 2.

[0040] In this embodiment, the cross-section of the annular groove 21 is set to a rectangle. The right-angled side of the annular groove 21 can better hold the spring bead 11 and restrict the movement of the spring bead 11 in the vertical direction. The opening width of the annular groove 21 is smaller than the diameter of the spring bead 11, which can better play a fixing role and realize the fixing of the spring bead 11 by the annular groove 21.

[0041] like Figures 1 to 5 As shown, in one embodiment, the number of through slots 22 is at least two, and the through slots 22 are arranged in a ring and dispersed on the face ring assembly 2.

[0042] In this embodiment, the number of through slots 22 is set to multiple, which makes it easy for the spring ball 11 to rotate into the through slot 22 and disengage from the annular groove 21. The required rotation angle of the radiator 1 during disassembly is small, making the disassembly process simpler.

[0043] In one specific embodiment, there are two through slots 22, which are arranged in a ring and dispersed on the face ring assembly 2. In this case, the two through slots 22 are symmetrically arranged.

[0044] In another specific embodiment, there are multiple through slots 22, which are arranged in a ring or dispersed manner on the face ring assembly 2.

[0045] like Figures 1 to 5 As shown, in one embodiment, the opening depth of the through groove 22 is greater than the opening depth of the annular groove 21.

[0046] In this embodiment, the opening depth of the through groove 22 is greater than the opening depth of the annular groove 21, which makes the process of the spring ball 11 disengaging from the annular groove 21 and rotating into the through groove 22 smoother. At the same time, it can prevent the spring ball 11 from sliding into the annular groove 21 due to the rotation of the heat sink 1 during the process of the spring ball 11 falling along the through groove 22, thus preventing the disassembly from being completed smoothly.

[0047] like Figures 1 to 5 As shown, in one embodiment, the sidewall of one side of the through groove 22 is set as an arc surface to provide cushioning during the descent of the radiator 1, and the opening at the lower end of the through groove 22 is smaller than the opening at the upper end of the through groove 22.

[0048] In this embodiment, one side wall of the through groove 22 is set as an arc surface, and the opening at the lower end of the through groove 22 is smaller than the opening at the upper end of the through groove 22. This allows the spring bead 11 to fall slowly along the arc surface, providing a buffer during the fall of the heat sink 1 and preventing the heat sink 1 from falling too quickly, causing a large impact on the lamp structure and easily damaging the lamp structure.

[0049] like Figures 1 to 5 As shown, in one embodiment, when the spring bead 11 is in the fully extended state, the gap between the spring bead 11 and the inner wall of the face ring assembly 2 is δ1; when the spring bead 11 is in the fully retracted state, the gap between the spring bead 11 and the inner wall of the face ring assembly 2 is δ2; and the height of the limiting rib 23 is h, where δ1 < h < δ2.

[0050] In this embodiment, the height of the limiting rib 23 is greater than the gap between the spring ball 11 and the inner wall of the face ring assembly 2 when the spring ball 11 is in the fully extended state. This allows the limiting rib 23 to block the spring ball 11 and prevent the radiator 1 from falling directly. The height of the limiting rib 23 is less than the gap between the spring ball 11 and the inner wall of the face ring assembly 2 when the spring ball 11 is in the fully retracted state. This ensures that when an external force is applied to pull the radiator 1, the spring ball 11 can pass smoothly through the limiting rib 23, thus enabling the radiator 1 to be disassembled.

[0051] like Figures 1 to 5 As shown, in one embodiment, the gap between the bottom of the reflector cup 3 and the inner wall of the face ring assembly 2 is δ3, where h > δ3.

[0052] In this embodiment, the limiting baffle 23 is configured such that its height is greater than the gap between the bottom of the reflector cup 3 and the inner wall of the face ring assembly 2. During the upward pushing of the heat sink 1, the limiting baffle 23 can block the bottom of the reflector cup 3, limiting the depth of the bottom of the reflector cup 3 into the face ring assembly 2, preventing the heat sink 1 from detaching from the face ring assembly 2 and entering the ceiling, making it difficult to disassemble and remove, thus affecting the user experience.

[0053] like Figures 1 to 5 As shown, according to an embodiment of the present invention, another aspect provides a ceiling downlight, including a heat sink 1, a face ring assembly 2, a light source assembly, a spring bead 11 located on the heat sink 1, and a reflector 3 fixed on the heat sink 1.

[0054] like Figures 1 to 5 As shown, in one embodiment, the number of spring beads 11 is at least two, and the number of spring beads 11 is not greater than the number of through slots 22. The spring beads 11 are used to fix the heat sink 1.

[0055] In this embodiment, the number of spring beads 11 is set to be multiple, which can more stably fix the heat sink 1, distribute the force evenly, prevent the heat sink 1 from being unstable, and when a certain spring bead 11 fails and loses its function, the other spring beads 11 can maintain the structure to continue to work; the number of spring beads 11 is not greater than the number of through slots 22, so that each spring bead 11 has a corresponding through slot 22 to realize the disassembly of the heat sink 1. The heat sink 1 can be rotated by a small angle so that the spring bead 11 can be disengaged from the annular groove 21 and slide into the through slot 22.

[0056] Specifically, regarding the number of spring beads 11, the following four embodiments are included:

[0057] Specifically, in the first embodiment, there are two spring beads 11, and the number of spring beads 11 is equal to the number of through slots 22. The spring beads 11 are used to fix the heat sink 1. At this time, the two spring beads 11 are arranged symmetrically.

[0058] Specifically, in the second embodiment, there are multiple spring beads 11, and the number of spring beads 11 is equal to the number of through slots 22. The spring beads 11 are used to fix the heat sink 1.

[0059] Specifically, in the third embodiment, there are two spring beads 11, and the number of spring beads 11 is less than the number of through slots 22. The spring beads 11 are used to fix the heat sink 1.

[0060] Specifically, in the fourth embodiment, there are multiple spring beads 11, and the number of spring beads 11 is less than the number of through slots 22. The spring beads 11 are used to fix the heat sink 1.

[0061] like Figures 1 to 5 As shown, in one embodiment, a plurality of spring beads 11 are arranged in a ring at intervals, and the ring formed is parallel to the bottom surface of the face ring assembly 2. The positions of the spring beads 11 are configured such that each of the spring beads 11 corresponds to a through slot 22.

[0062] In this embodiment, multiple spring beads 11 are arranged in a ring at intervals, and the ring formed is parallel to the bottom surface of the face ring assembly 2. The multiple spring beads 11 can distribute the load and fix the heat sink 1 from multiple directions to prevent the heat sink 1 from tilting and increase the stability of the structure. The positions of the spring beads 11 are such that each spring bead 11 can correspond to a through groove 22, which allows the heat sink 1 to be disassembled normally. If the condition that each spring bead 11 can correspond to a through groove 22 cannot be met, some spring beads 11 will be blocked by the annular groove 21 and cannot move up and down, making it impossible to disassemble the heat sink 1.

[0063] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A face ring assembly for a ceiling downlight, characterized by, The ceiling downlight includes a radiator (1), a face ring assembly (2), a light source assembly, a spring bead (11) located on the radiator (1), and a reflector (3) fixed on the radiator (1); The inner wall of the face ring assembly (2) is provided with circumferentially distributed annular grooves (21) to restrict the up and down movement of the spring bead (11). The inner wall of the face ring assembly (2) is also provided with through grooves (22) distributed along the height direction to guide the up and down movement of the spring bead (11). The through grooves (22) and the annular grooves (21) are alternately arranged along the circumferential direction of the inner wall of the face ring assembly (2), and the through grooves (22) and the annular grooves (21) are connected to each other. Raised limiting ribs (23) are provided between the through slots (22). The limiting ribs (23) are arranged in a ring to limit the depth of the bottom of the reflector cup (3) into the face ring assembly (2) and to provide cushioning when the heat sink (1) falls.

2. The face ring assembly for a ceiling can light according to claim 1, wherein, The annular groove (21) has a rectangular cross-section, and the opening width of the annular groove (21) is smaller than the diameter of the spring bead (11). The annular groove (21) is parallel to the bottom surface of the face ring assembly (2).

3. The face ring assembly for a ceiling can light according to claim 1, wherein, The number of the through slots (22) is at least two, and the through slots (22) are arranged in a ring or dispersed on the face ring assembly (2).

4. The face ring assembly for a ceiling can light according to claim 3, wherein, The opening depth of the through groove (22) is greater than the opening depth of the annular groove (21).

5. The face ring assembly for a ceiling can light according to claim 4, wherein, The side wall of one side of the through groove (22) is set as an arc surface to provide a buffer during the fall of the radiator (1). The opening at the lower end of the through groove (22) is smaller than the opening at the upper end of the through groove (22).

6. The face ring assembly for a ceiling can light according to claim 1, wherein, When the spring bead (11) is in the fully extended state, the gap between the spring bead (11) and the inner wall of the face ring assembly (2) is δ1. When the spring bead (11) is in the fully retracted state, the gap between the spring bead (11) and the inner wall of the face ring assembly (2) is δ2. The height of the limiting rib (23) is h, where δ1 < h < δ2.

7. The face ring assembly for a ceiling downlight according to claim 6, characterized in that, The gap between the bottom of the reflector cup (3) and the inner wall of the face ring assembly (2) is δ3, h>δ3.

8. A ceiling downlight, comprising a heat sink (1), a face ring assembly (2), a light source assembly, and a spring bead (11) located on the heat sink (1) and a reflector (3) fixed to the heat sink (1), characterized in that, The face ring assembly (2) is configured as a face ring assembly (2) for a ceiling downlight according to any one of claims 1 to 7.

9. The ceiling downlight according to claim 8, characterized in that, The number of spring beads (11) is at least two, and the number of spring beads (11) is not greater than the number of through slots (22). The spring beads (11) are used to fix the heat sink (1).

10. The ceiling downlight according to claim 9, characterized in that, Multiple spring beads (11) are arranged in a ring at intervals, and the ring formed is parallel to the bottom surface of the face ring assembly (2). The positions of the spring beads (11) are set such that each of the spring beads (11) corresponds to one of the through slots (22).

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