Protective cover, structure for adjusting gap between protective cover and reflection cup and corresponding down lamp

Abstract

The utility model relates to the technical field of protective covers, in particular to a protective cover. Comprising a protective cover body, and the outer edge of the lower end of the protective cover body is provided with an elastic piece which abuts against a reflection cup and can generate elastic deformation. The elastic piece comprises a connecting part connected to the protective cover body, the connecting part obliquely extends downwards to form an elastic plate, and the elastic plate is not connected with the protective cover body. The whole protective cover body is in the shape of a cylinder with an opening in the upper end, and a first clamping part clamped with a radiator and a second clamping part clamped with a face ring are arranged at the position of the cylinder opening of the protective cover body. The reflection cup is fixed between the protective cover and the round face ring by clamping the round face ring on the face ring, the installation gap of the reflection cup between the protective cover and the round face ring is adjusted through the deformation quantity of the elastic piece, and the reflection cup fixing structure is ingenious and simple in structure and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of protective cover technology, and in particular to a protective cover, a structure for adjusting the gap between the protective cover and the reflector, and a corresponding downlight. Background Technology

[0002] The main function of the reflector in a downlight is to enhance light effect, focus light, and extend its range. By reflecting light, the reflector controls the illumination distance and area of ​​the main light spot, thereby achieving effective light utilization. In existing technologies, the reflector is directly abutted against the bottom surface of the protective cover, and then a round ring is snapped onto the face ring to fix the reflector between the protective cover and the round ring. Due to potential tolerances in the overall height of the reflector during production, the reflector may be mounted at varying heights on the protective cover. If the overall height of the reflector is too high, the round ring cannot be screwed onto the face ring; if the overall height of the reflector is too low, the reflector will wobble and make noise inside the downlight. To solve this gap problem, traditional methods use a spring or glued foam for cushioning between the protective cover and the reflector, which is complex and not optimized. This paper proposes a protective cover, a structure for adjusting the gap between the protective cover and the reflector, and a corresponding downlight to solve the problems existing in the current technology. Utility Model Content

[0003] The purpose of this utility model is to provide a protective cover, a structure for adjusting the gap between the protective cover and the reflector, and a corresponding downlight, so as to solve the problem in the prior art that, in order to solve the problem of gaps in the assembly of the reflector on the protective cover, the traditional method of using a spring or glued foam for buffering between the protective cover and the reflector is complex and not optimized.

[0004] The technical solution of this utility model is: a protective cover, including a protective cover body, wherein the outer edge of the lower end of the protective cover body is provided with a spring sheet that abuts against the reflector cup and can undergo elastic deformation.

[0005] Preferably, the spring includes a connecting portion connected to the protective cover body, the connecting portion extending obliquely downwards into a spring plate, and the spring plate is not connected to the protective cover body.

[0006] Preferably, the protective cover body is cylindrical with an open top, and the opening of the protective cover body is provided with a first engaging part that engages with the radiator and a second engaging part that engages with the face ring.

[0007] Preferably, the first snap-fit ​​portion includes a first annular protrusion that expands outward from the opening of the protective cover body. The edge of the first protrusion is provided with a plurality of arc-shaped notches evenly distributed along the circumference of the protrusion. A first inclined surface that slopes downward is provided on one side of the notch with the arc of the notch as the starting point.

[0008] The second snap-fit ​​portion includes a plurality of U-shaped grooves with horizontally oriented openings at the same height on the outer wall of the anti-slip cover body. The lower side of each U-shaped groove is a second inclined surface that slopes upward from the groove opening to the groove bottom.

[0009] Preferably, the protective cover body and the spring are integrally formed.

[0010] This utility model also provides a structure for adjusting the gap between the protective cover and the reflector, including a heat sink, the protective cover snapped onto the heat sink, a face ring snapped onto the protective cover, a reflector abutting against the protective cover, and a round face ring, wherein the round face ring is snapped onto the face ring to fix the reflector between the protective cover and the round face ring.

[0011] Preferably, the radiator is in the shape of a cover, and multiple locking blocks extend inward from the inner wall of the radiator in the circumferential direction corresponding to the first locking part.

[0012] Preferably, the face ring is a conical cover, and an annular second protrusion extends inward from the upper opening of the face ring. The outer edge of the second protrusion extends into a plurality of arc-shaped locking plates corresponding to the second locking part.

[0013] The lower end opening of the face ring expands outward to form a third annular protrusion. The third protrusion has multiple slots that penetrate vertically and are evenly distributed along its circumference. Each slot includes a first arc-shaped slot and a second arc-shaped slot that is connected to the first arc-shaped slot and has a width smaller than the first arc-shaped slot.

[0014] Preferably, the circular ring includes a circular ring body, the circular ring body is annular, and the top surface of the circular ring body extends upward to a plurality of hooks with a vertical cross-section of the number 7. The horizontal part of each hook is a horizontal arc plate, and the bottom surface of the horizontal arc plate is a third inclined surface that slopes upward from the second arc groove to the first arc groove side.

[0015] This utility model also provides a downlight, including the above-described structure for adjusting the gap between the protective cover and the reflector.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] This utility model discloses a protective cover, a structure for adjusting the gap between the protective cover and the reflector, and a corresponding downlight. The outer edge of the lower end of the protective cover body is provided with a spring piece that abuts against the reflector and can undergo elastic deformation. The circular ring is fixed to the reflector between the protective cover and the circular ring by a snap-fit ​​on the ring. The deformation of the spring piece is used to adjust the installation gap of the reflector between the protective cover and the circular ring. This utility model has a clever and simple structure and is highly practical. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of the structure for adjusting the gap between the protective cover and the reflector cup according to the present invention;

[0020] Figure 2 This is an exploded structural diagram of the structure for adjusting the gap between the protective cover and the reflector cup described in this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the radiator described in this utility model;

[0022] Figure 4 This is a schematic diagram of the protective cover of this utility model from a plane view.

[0023] Figure 5 This is a top-view structural diagram of the protective cover described in this utility model;

[0024] Figure 6 This is a structural schematic diagram of the protective cover described in this utility model from an upward angle;

[0025] Figure 7 This is a schematic diagram of the structure of the face ring described in this utility model;

[0026] Figure 8 This is a schematic diagram of the reflector cup described in this utility model;

[0027] Figure 9 This is a schematic diagram of the structure of the circular ring described in this utility model;

[0028] Figure 10 for Figure 9 A schematic diagram of the enlarged mechanism at point A;

[0029] Figure 11 This is a cross-sectional structural diagram of the structure for adjusting the gap between the protective cover and the reflector cup according to the present invention.

[0030] Among them: 1. Protective cover, 2. Spring piece, 3. Connecting part, 4. Spring plate, 5. First boss, 6. Notch, 7. First inclined surface, 8. U-shaped groove, 9. Second inclined surface, 10. Heat sink, 11. Locking block, 12. Face ring, 13. Second boss, 14. Locking plate, 15. Third boss, 16. Locking groove, 17. First arc groove, 18. Second arc groove, 19. Reflector cup, 20. Face ring, 21. Hook, 22. Horizontal arc plate, 23. Third inclined surface. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to specific embodiments:

[0032] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0033] like Figures 4-6 As shown, a protective cover 1 includes a protective cover body. A spring piece 2, capable of elastic deformation, is provided at the lower outer edge of the protective cover body, abutting against a reflector cup 19. The spring piece 2 includes a connecting portion 3 connected to the protective cover body. A spring plate 4 extends obliquely downward from the connecting portion 3, but is not connected to the protective cover body. The protective cover body is generally cylindrical with an open upper end. A first engaging portion that engages with a radiator 10 and a second engaging portion that engages with a face ring 12 are provided at the opening of the protective cover body. The first engaging portion includes a first annular protrusion 5 extending outward from the opening of the protective cover body. Multiple arc-shaped notches 6 are evenly distributed along the circumference of the first protrusion 5. A first inclined surface 7 is provided on one side of the notch 6, oriented downwards from the space of the notch 6 towards the arc of the notch 6. The second engaging portion includes multiple U-shaped grooves 8 with horizontally oriented openings at the same height on the outer wall of the anti-slip cover body. The lower side of each U-shaped groove 8 is a second inclined surface 9 that slopes upwards from the groove opening to the groove bottom. The protective cover body and the spring 2 are integrally molded. This integral molding design, since the protective cover 1 is injection molded, does not increase the manufacturing cost of the protective cover 1 and also eliminates the cost of springs and foam used in existing technologies.

[0034] like Figure 1 , Figure 2 , Figure 11 As shown, this utility model also provides a structure for adjusting the gap between the protective cover 1 and the reflector cup 19, including a heat sink 10, a protective cover 1 snapped onto the heat sink 10, a face ring 12 snapped onto the protective cover 1, and a reflector cup 19 abutting against the protective cover 1 (as shown). Figure 8 As shown), the circular ring 20 is snapped onto the face ring 12, thereby fixing the reflector cup 19 between the protective cover 1 and the circular ring 20.

[0035] like Figure 3 As shown, the radiator 10 is generally lid-shaped, and multiple latching blocks 11 extend inward from the inner circumferential wall of the radiator 10 corresponding to the first latching portion. Figure 7As shown, the face ring 12 is a conical cover. A second annular protrusion 13 extends inward from the upper opening of the face ring 12. Multiple arc-shaped locking plates 14 extend from the outer edge of the second protrusion 13 corresponding to the second locking portion. A third annular protrusion 15 expands outward from the lower opening of the face ring 12. Multiple vertically penetrating slots 16 are evenly distributed along the circumference of the third protrusion 15. Each slot 16 includes a first arc-shaped slot 17 and a second arc-shaped slot 18 connected to the first arc-shaped slot 17 with a width smaller than the first arc-shaped slot 17. For example... Figure 9 , Figure 10 As shown, the circular ring 20 includes a circular ring body, which is annular. Multiple hooks 21 with a vertical cross-section of the shape of the number 7 extend upward from the top surface of the circular ring body. The horizontal part of each hook 21 is a horizontal arc plate 22. The bottom surface of the horizontal arc plate 22 is a third inclined surface 23 that slopes upward from the second arc groove 18 opening to the first arc groove 17 opening side.

[0036] The working principle of the structure for adjusting the gap between the protective cover 1 and the reflector cup 19 in this utility model is as follows: Electrical components and the light source are fixedly installed inside the radiator 10. The notch 6 of the protective cover 1 is aligned with the locking block 11 on the inner wall of the radiator 10. After alignment, the protective cover 1 is pressed against the inner top surface of the radiator 10, and then the protective cover 1 is screwed on. When the locking block 11 contacts the first inclined surface 7 of the protective cover 1, the protective cover 1 is successfully mounted on the radiator 10. The notch formed between two adjacent locking plates 14 at the top of the face ring 12 is aligned with the U-shaped groove 8 of the protective cover 1. After alignment, the face ring 12 is pressed against the bottom surface of the first protrusion 5 of the radiator 10, and then the face ring 12 is screwed on. When the card plate 14 contacts the second inclined surface 9 of the U-shaped groove 8, the face ring 12 is installed on the protective cover 1. The top of the reflector cup 19 is pressed against the spring piece 2 of the protective cover 1, and then the hook 21 of the round face ring 20 is inserted into the first arc groove 17 of the face ring 12. After it is fully inserted, the round face ring 20 is screwed in, and the hook 21 is screwed into the second arc groove 18 of the face ring 12. When the body of the third boss 15 contacts the third inclined surface 23 of the hook 21, the round face ring 20 is installed on the face ring 12. At the same time, the reflector cup 19 is fixed between the protective cover 1 and the round face ring 20. The deformation of the spring piece 2 is used to adjust the installation gap of the reflector cup 19 between the protective cover 1 and the round face ring 20.

[0037] This utility model also provides a downlight, including the above-mentioned structure for adjusting the gap between the protective cover 1 and the reflector cup 19.

[0038] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A protective cover, characterized in that: Includes a protective cover body, wherein the lower outer edge of the protective cover body is provided with a spring sheet that abuts against the reflector cup and can undergo elastic deformation; The spring includes a connecting part connected to the protective cover body, and the connecting part extends obliquely downward to form a spring plate. The spring plate is not connected to the protective cover body.

2. The protective cover according to claim 1, characterized in that: The protective cover body is generally cylindrical with an open top. The opening of the protective cover body is provided with a first locking part that engages with the radiator and a second locking part that engages with the face ring.

3. A protective cover according to claim 2, characterized in that: The first snap-fit ​​part includes a first annular protrusion that expands outward from the opening of the protective cover body. The edge of the first protrusion has multiple arc-shaped notches evenly distributed along the circumference of the protrusion. A first inclined surface that slopes downward is provided on one side of the notch with the arc of the notch as the starting point. The second snap-fit ​​portion includes a plurality of U-shaped grooves with horizontally oriented openings at the same height on the outer wall of the anti-slip cover body. The lower side of each U-shaped groove is a second inclined surface that slopes upward from the groove opening to the groove bottom.

4. A protective cover according to claim 1, characterized in that: The protective cover body and the spring are integrally formed.

5. A structure for adjusting the gap between the protective cover and the reflector, characterized in that: The device includes a heat sink, a protective cover as described in any one of claims 1-4 that is snapped onto the heat sink, a face ring snapped onto the protective cover, a reflector cup abutting against the protective cover, and a round face ring, wherein the round face ring is snapped onto the face ring to fix the reflector cup between the protective cover and the round face ring.

6. The structure for adjusting the gap between the protective cover and the reflector cup according to claim 5, characterized in that: The radiator is generally lid-shaped, and multiple locking blocks extend inward from the inner wall of the radiator in the circumferential direction, corresponding to the first locking part.

7. The structure for adjusting the gap between the protective cover and the reflector cup according to claim 6, characterized in that: The face ring is a conical cover, and an annular second protrusion extends inward from the upper opening of the face ring. Multiple arc-shaped locking plates extend from the outer edge of the second protrusion corresponding to the second locking part. The lower end opening of the face ring expands outward to form a third annular protrusion. The third protrusion has multiple slots that penetrate vertically and are evenly distributed along its circumference. Each slot includes a first arc-shaped slot and a second arc-shaped slot that is connected to the first arc-shaped slot and has a width smaller than the first arc-shaped slot.

8. The structure for adjusting the gap between the protective cover and the reflector cup according to claim 7, characterized in that: The circular ring includes a circular ring body, which is annular. Multiple hooks with a vertical cross-section of the figure-7 extend upward from the top surface of the circular ring body. The horizontal part of each hook is a horizontal arc plate, and the bottom surface of the horizontal arc plate forms a third inclined surface that slopes upward from the second arc groove to the first arc groove side.

9. A downlight, characterized in that: The structure includes the one described in any one of claims 6-8 for adjusting the gap between the protective cover and the reflector.

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