GU10 lamp holder of PAR (Parabolic Aluminum Reflector) lamp

Abstract

The utility model relates to the technical field of lighting lamps, in particular to a GU10 lamp holder of a PAR (Parabolic Aluminum Reflector) lamp, which is characterized by comprising a lamp cup, a light source and a light-transmitting cover, the light source is mounted in the lamp cup, the light-transmitting cover is clamped with an opening of the lamp cup and comprises a refraction part, a first refraction surface is arranged on one side, close to the light source, of the refraction part, and a second refraction surface is arranged on one side, close to the light source, of the refraction part. A reflecting surface is arranged on the outer side face of the refraction part, a second refraction surface is arranged on the upper surface of the refraction part, the first refraction surface refracts light rays emitted by the light source for the first time, the angle of the light rays emitted by the light source is enlarged, the irradiation range of the light rays is enlarged, and the reflecting surface reflects the light rays refracted by the first refraction surface and concentrates the irradiation range of the light rays. On the basis that the first refracting surface expands the light irradiation range, light is concentrated, and the brightness of the lamp is improved; and the second refraction surface reflects the light concentrated by the reflection surface, so that the illumination range of the lamp is enlarged while the brightness of the lamp is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting fixtures, and more specifically, to a PAR lamp GU10 lamp holder. Background Art

[0002] PAR lamp (Parabolic Aluminum Reflector light), also known as spotlight, is a lamp that emits a relatively fixed beam of light. It is a lamp that is more focused than ordinary surface-mounted lamps and is widely used in home lighting, clothing stores, restaurants and various large performance venues.

[0003] Currently, PAR lamps mainly use lamp cups to reflect the light source. Due to the reflective design of the lamp cup, only part of the light can be reflected and projected forward, while other light may be scattered or directly shine on the lamp cup, which also makes the lamp cup temperature too high, resulting in lower light efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a PAR lamp GU10 lamp holder, which has the advantage of improving the brightness of the lamp.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a PAR lamp GU10 lamp head, including a lamp cup, a light source and a light-transmitting cover, the light source is arranged in the lamp cup, the light-transmitting cover is clamped in the opening of the lamp cup, and the light-transmitting cover includes a refraction part, which is used to concentrate the light emitted by the light source.

[0006] In one embodiment, a first refractive surface is provided on a side of the refractive portion close to the light source, and the first refractive surface is used to expand the angle of light emitted by the light source. A reflective surface is provided on the outer side surface of the refractive portion, and the reflective surface is used to concentrate and reflect the light refracted by the first refractive surface. A second refractive surface is provided on the upper surface of the refractive portion, and the second refractive surface is used to adjust the angle of light reflected by the reflective surface.

[0007] In one embodiment, the upper side of the first refractive surface is inclined toward the axis of the lamp cup, the upper side of the reflective surface is inclined toward the axis away from the lamp cup, and the side of the second refractive surface close to the axis of the lamp cup is inclined toward the light source.

[0008] In one embodiment, a plurality of the refractive parts are provided, and the plurality of the refractive parts are distributed along the radial direction of the lamp cup.

[0009] In one embodiment, the light-transmitting cover further includes a convex lens, and a focus of the convex lens coincides with the light source.

[0010] In one of the embodiments, the edge of the convex lens is fixedly connected to the refractive portion.

[0011] In one embodiment, the light source emits light at an angle of 120 degrees.

[0012] In one of the embodiments, the angle of light refracted by the refraction portion is 24-60 degrees.

[0013] In one of the embodiments, an elastic member is disposed on the outer surface of the refraction portion, and a clamping groove matched with the elastic member is formed on the inner wall of the lamp cup.

[0014] In one of the embodiments, a clamping portion for engaging with the clamping groove is disposed on the outer side of the elastic member, and the bottom of the outer side surface of the clamping portion is inclined toward the axial direction of the lamp cup.

[0015] The above-mentioned PAR lamp GU10 lamp holder has the following beneficial effects:

[0016] First, the refraction part is used to concentrate the light emitted by the light source, replacing the original design of reflecting the light through the lamp cup, so as to avoid the lamp cup from overheating, increase the brightness of the lamp, and improve the light efficiency of the lamp;

[0017] Secondly, the first refractive surface, the reflective surface and the second refractive surface cooperate with each other to increase the illumination range of the lamp while increasing the brightness of the lamp;

[0018] Thirdly, the elastic member cooperates with the snap-fit ​​groove. When the lamp is assembled, the elastic member is inserted into the snap-fit ​​groove to fix the light-transmitting cover at the outlet of the lamp cup, thereby simplifying the assembly process of the lamp and improving the assembly efficiency of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 1 is a schematic diagram of the structure before assembly in this embodiment;

[0020] Figure 2 It is a schematic diagram of the structure after assembly in this embodiment;

[0021] Figure 3 is a cutaway front view after assembly in this embodiment;

[0022] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0023] Figure 5 Schematic diagram of the structure of the light-transmitting cover in this embodiment.

[0024] In the figure: 1, lamp cup; 11, snap-fit ​​groove; 2, light source; 3, light-transmitting cover; 31, refraction part; 311, first refraction surface; 312, reflection surface; 313, second refraction surface; 314, elastic member; 3141, snap-fit ​​part; 32, convex lens. DETAILED DESCRIPTION

[0025] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] A PAR lamp GU10 lamp holder, such as Figure 1 , Figure 2 As shown, it includes a lamp cup 1, a light source 2 and a light-transmitting cover 3. The light source 2 is installed in the lamp cup 1. The light-transmitting cover 3 is snap-fitted with the opening of the lamp cup 1. The light-transmitting cover 3 includes a refraction portion 31 for concentrating the light emitted by the light source 2 to avoid heating of the lamp cup 1 and improve the light efficiency of the lamp.

[0031] Specifically, Figure 3 , Figure 5 As shown, a first refractive surface 311 is provided on the side of the refractive portion 31 close to the light source 2, a reflective surface 312 is provided on the outer side surface of the refractive portion 31, and a second refractive surface 313 is provided on the upper surface of the refractive portion 31. The first refractive surface 311 refracts the light emitted by the light source 2 for the first time, expands the angle of the light emitted by the light source 2, and increases the irradiation range of the light. The reflective surface 312 reflects the light refracted by the first refractive surface 311 and concentrates the irradiation range of the light. On the basis of the expansion of the irradiation range of the light by the first refractive surface 311, the light is concentrated to improve the brightness of the lamp. The second refractive surface 313 reflects the light concentrated by the reflective surface 312, thereby increasing the brightness of the lamp and expanding the irradiation range of the lamp.

[0032] Preferably, if Figure 3 As shown, the upper side of the first refractive surface 311 is inclined toward the axis direction of the lamp cup 1, the upper side of the reflective surface 312 is inclined toward the axis direction away from the lamp cup 1, and the side of the second refractive surface 313 close to the axis direction of the lamp cup 1 is inclined toward the direction of the light source 2;

[0033] In this embodiment, the angle of the light emitted by the light source 2 is 120 degrees, and a larger emission angle is used to increase the irradiation range. The upper side of the first refractive surface 311 is inclined toward the axial direction of the lamp cup 1. The first refractive surface 311 enlarges the angle of the light emitted by the light source 2, thereby increasing the irradiation range of the light source 2. The upper side of the reflective surface 312 is inclined toward the axial direction away from the lamp cup 1. After receiving the light refracted by the first refractive surface 311, the reflective surface 312 shrinks the light and reflects it out in a concentrated manner, thereby increasing the brightness of the lamp. The second refractive surface 313 is inclined toward the side of the axial direction of the lamp cup 1 toward the direction of the light source 2. The angle of the light refracted by the second refractive surface 313 is 24-60 degrees, preferably 38 degrees. The angle of the light reflected by the reflective surface 312 is enlarged, thereby expanding the irradiation range while increasing the brightness of the lamp.

[0034] Preferably, if Figure 3 As shown, a plurality of refraction parts 31 are provided, and the plurality of refraction parts 31 are distributed along the radial direction of the lamp cup 1 , so as to further concentrate the light emitted by the light source 2 .

[0035] Further, such as Figure 1 , Figure 2 , Figure 3 As shown, the light-transmitting cover 3 also includes a convex lens 32, the focus of the convex lens 32 coincides with the light source 2, and the edge of the convex lens 32 is fixedly connected to the refractive portion 31. By utilizing the refraction principle of the convex lens 32, the light emitted from the center of the light source 2 is emitted in parallel, thereby further improving the brightness of the lamp.

[0036] In this embodiment, the convex lens 32 and the refractive portion 31 are integrally formed.

[0037] Further, such as Figure 3 , Figure 4 As shown, an elastic member 314 is provided on the outer surface of the refractive portion 31, and a snap-in groove 11 adapted to the elastic member 314 is provided on the inner wall of the lamp cup 1. When assembling the lamp, the elastic member 314 is inserted into the snap-in groove 11 to fix the light-transmitting cover 3 at the outlet of the lamp cup 1, thereby simplifying the assembly process of the lamp and improving the assembly efficiency of the lamp.

[0038] Specifically, Figure 4 , Figure 5 As shown, a clamping portion 3141 is provided on the outer side of the elastic member 314, which is engaged with the clamping groove 11. The bottom of the outer side surface of the clamping portion 3141 is inclined toward the axial direction of the lamp cup 1. During the assembly of the light translucent cover 3 and the lamp cup 1, the outer side surface of the clamping portion 3141 adopts an inclined structural design. The clamping portion 3141 drives the elastic member 314 to deform. After the clamping portion 3141 is inserted into the clamping groove 11, the elastic member 314 is reset under the action of its own elasticity to fix the light translucent cover 3 and the lamp cup 1.

[0039] How it works

[0040] The light source 2 emits light, which passes through the first refractive surface 311, the reflective surface 312 and the second refractive surface 313 in sequence. The light first passes through the first refractive surface 311 to expand the emission angle, and then passes through the reflective surface 312 to concentrate the light after the first refractive surface 311 expands the angle, thereby increasing the brightness of the light emitted by the light source 2. The second refractive surface 313 appropriately expands the angle of the light reflected by the reflective surface 312, thereby expanding the irradiation range of the lamp while ensuring the brightness of the lamp.

[0041] At the same time, the light from the center of the light source 2 is emitted from the lamp through the convex lens 32. Based on the refraction principle of the convex lens 32, the radial light emitted from the center of the light source 2 is refracted into parallel light, further increasing the brightness of the lamp.

[0042] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A PAR lamp GU10 lamp holder, comprising a lamp cup, a light source and a light-transmitting cover, characterized in that: The light source is arranged in the lamp cup, the light-transmitting cover is clamped on the opening of the lamp cup, and the light-transmitting cover comprises a refraction part, and the refraction part is used for concentrating and emitting the light emitted by the light source.

2. A PAR lamp GU10 lamp holder according to claim 1, characterized in that: A first refractive surface is arranged on a side of the refractive portion close to the light source, and the first refractive surface is used to expand the angle of the light emitted by the light source. A reflective surface is arranged on the outer side surface of the refractive portion, and the reflective surface is used to concentrate and reflect the light refracted by the first refractive surface. A second refractive surface is arranged on the upper surface of the refractive portion, and the second refractive surface is used to adjust the angle of the light reflected by the reflective surface.

3. The PAR lamp GU10 lamp holder according to claim 2, characterized in that: The upper side of the first refractive surface is inclined toward the axis direction of the lamp cup, the upper side of the reflective surface is inclined toward the axis direction away from the lamp cup, and the side of the second refractive surface close to the axis direction of the lamp cup is inclined toward the direction of the light source.

4. The PAR lamp GU10 lamp holder according to claim 1, characterized in that: A plurality of the refraction parts are provided, and the plurality of the refraction parts are distributed along the radial direction of the lamp cup.

5. A PAR lamp GU10 lamp holder according to claim 1 or 2, characterized in that: The light-transmitting cover further comprises a convex lens, and a focus of the convex lens coincides with the light source.

6. The PAR lamp GU10 lamp holder according to claim 5, characterized in that: The edge of the convex lens is fixedly connected to the refractive part.

7. The PAR lamp GU10 lamp holder according to claim 1, characterized in that: The light source emits a light angle of 120 degrees.

8. The PAR lamp GU10 lamp holder according to claim 1, characterized in that: The angle of light refracted by the refraction part is 24-60 degrees.

9. The PAR lamp GU10 lamp holder according to claim 1, characterized in that: An elastic piece is arranged on the outer surface of the refraction part, and a clamping groove matched with the elastic piece is arranged on the inner wall of the lamp cup.

10. A PAR lamp GU10 lamp holder according to claim 9, characterized in that: A clamping portion for clamping with the clamping groove is disposed on the outer side of the elastic member, and the bottom of the outer side surface of the clamping portion is inclined toward the axial direction of the lamp cup.

Images