CN114087558A

CN114087558A - Lighting device

Info

Publication number: CN114087558A
Application number: CN202111391416.7A
Authority: CN
Inventors: 曹海; 周红玉; 周造轩
Original assignee: Jiangsu Zhgc Photoelectricity Technology Co ltd
Current assignee: Shangrao Smart Guangcai Technology Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-02-25

Abstract

The invention relates to the technical field of illumination, and particularly discloses an illumination device which comprises a lamp body, a lampshade, a protective cover and a heat dissipation assembly, wherein the lamp body is provided with a luminous piece. The lampshade is arranged on the lamp body and covers the outer side of the luminous piece; the protective cover is arranged on one side of the lamp body, which is far away from the lampshade, and is provided with a vent hole; the heat dissipation assembly comprises a heat dissipation plate and a fan, the heat dissipation plate is attached to the back face of the light emitting piece, and the fan is arranged in the protective cover and located on one side, far away from the light emitting piece, of the heat dissipation plate. The protective cover is arranged on one side of the lamp body, which is far away from the lampshade, so that an installation space of the heat dissipation assembly is formed between the protective cover and the lamp body, and the air flow is facilitated; the heat dissipation plate is attached to the back surface of the light-emitting piece, so that heat of the light-emitting piece can be effectively transferred out; the heat dissipation on the heat dissipation plate can be accelerated through the arrangement of the fan, so that the heat dissipation effect of the light-emitting piece is improved, and the service life of the light-emitting piece is prolonged.

Description

Lighting device

Technical Field

The invention relates to the technical field of illumination, in particular to an illumination device.

Background

The LED has the characteristics of energy conservation, environmental protection, long service life, small volume and the like, and is widely applied to the field of illumination. And the heat emitted by the LED during illumination needs to be timely conducted out through a medium, otherwise, the service life of the LED is shortened.

Because LED lighting device is when using, LED lighting device after the equipment is except lamp shade, light guide plate or lens board, other structures are the hidden design, are difficult for accomplishing the air flow, and to heat radiation structure, the air flow effect is poor, then directly leads to the radiating effect poor.

Disclosure of Invention

The invention aims to provide a lighting device, which improves the heat dissipation effect of the lighting device and prolongs the service life of an LED.

In order to achieve the purpose, the invention adopts the following technical scheme:

the present invention provides an illumination device, comprising:

the lamp body is provided with a luminous piece;

the lampshade is arranged on the lamp body and covers the outer side of the luminous piece;

the protective cover is arranged on one side, away from the lampshade, of the lamp body, and is provided with a vent hole;

the heat dissipation assembly comprises a heat dissipation plate and a fan, the heat dissipation plate is attached to the back face of the light emitting piece, and the fan is arranged in the protective cover and located on one side, away from the light emitting piece, of the heat dissipation plate.

Optionally, a side of the heat dissipation plate facing the fan is provided with fins.

Optionally, the lighting device further comprises:

The first support frame is arranged on the lamp body and comprises a hanging ring used for hanging the lamp body;

the second support frame is arranged on the first support frame and matched with the first support frame to form a support seat capable of placing the lamp body on the workbench.

Optionally, the first support frame includes two first side bars and a first cross bar, one end of each of the two first side bars is hinged to the lamp body, and two ends of the first cross bar are connected to the other ends of the two first side bars.

Optionally, the first side bar is hinged to the lamp body through a first damping assembly.

Optionally, the second supporting frame includes a second side bar, one end of the second side bar is hinged to any one of the first side bars, and a hinge point between the first side bar and the first side bar is located between the hinge point between the first side bar and the lamp body and the first cross bar; the other end of the second side rod is provided with a first position close to the first side rod and a second position far away from the first side rod, and when the second side rod is located at the second position, the second side rod can be matched with the first support frame to form a support seat.

Optionally, an articulated shaft is arranged between the second side rod and the first side rod, the second side rod is provided with an arc-shaped hole, and the center of the arc-shaped hole is located on the axis of the articulated shaft; the first side rod is provided with a fastening screw hole, and a fastening screw penetrates through the arc-shaped hole and then is in threaded connection with the fastening screw hole and can press the second side rod against the first side rod.

Optionally, the number of the second side bars is two, the second support frame further comprises a second cross bar, and the second cross bar is arranged at the other end of each of the two second side bars.

Optionally, the lighting device further includes a first lens, the first lens is disposed on the lamp body and located between the lampshade and the light-emitting member, and the first lens is used for magnifying the shape of the light source emitted by the light-emitting member.

Optionally, the lighting device further includes a second lens disposed on the lamp cover, and the second lens is configured to change a shape of the light source passing through the first lens.

The invention has the beneficial effects that:

the invention provides a lighting device, which is characterized in that a protective cover is arranged on one side of a lamp body, which is far away from a lampshade, so that an installation space of a heat dissipation assembly is formed between the protective cover and the lamp body, and the flow of air is facilitated; the heat dissipation plate is attached to the back surface of the light-emitting piece, so that heat of the light-emitting piece can be effectively transferred out; the heat dissipation on the heat dissipation plate can be accelerated through the arrangement of the fan, so that the heat dissipation effect of the light-emitting piece is improved, and the service life of the light-emitting piece is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of an illumination device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a shield and a heat sink assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a heat dissipation plate according to an embodiment of the present invention (second structure);

FIG. 4 is a schematic structural diagram of a shield, a lamp body, a lampshade, a first lens and a second lens according to an embodiment of the invention;

fig. 5 is a schematic view of the mounting structure of the first side bar and the second side bar in the embodiment of the invention.

In the figure:

1. a lamp body;

2. a lamp shade; 21. a first lens; 22. a support; 23. a second lens;

3. a protective cover; 31. a dust screen;

4. a heat dissipating component; 41. a heat dissipation plate; 411. a fin; 412. an additional sheet; 42. a fan;

5. a first support frame; 51. a first side bar; 52. a first cross bar;

6. a second support frame; 61. a second side bar; 62. a second cross bar;

7. and (5) fastening the screw.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

As shown in fig. 1 to 5, the present embodiment provides a lighting device including a lamp body 1, a lamp housing 2, a shield 3, and a heat dissipation member 4. Wherein, the lamp body 1 is provided with a luminous piece which can emit light. The lampshade 2 is arranged on the lamp body 1 and covers the outer side of the luminous element. Alternatively, the lamp cover 2 and the lamp body 1 are screwed. The outer diameter of the lamp housing 2 is smaller than that of the lamp body 1. The protection casing 3 is arranged on one side of the lamp body 1 departing from the lampshade 2. Preferably, the protective cover 3 is detachably connected to the lamp body 1, and in particular, the protective cover 3 is screwed to the lamp body 1. The protective cover 3 is provided with a vent hole; the dust screen 31 is arranged at the vent hole, and the dust screen 31 is detachably connected to the protective cover 3. Optionally, the protective cover 3 is snapped into the ventilation hole. The heat dissipation assembly 4 includes a heat dissipation plate 41 and a fan 42, the heat dissipation plate 41 is attached to the back of the light emitting element, and the fan 42 is disposed in the protective cover 3 and located on one side of the heat dissipation member away from the light emitting element.

In this embodiment, the light emitting element may be an LED, or may be a bulb, a tube, or other product. It should be noted that the LED generally refers to a light emitting diode. The light emitting diode, referred to as LED for short, is a commonly used light emitting device, which emits light by energy released by recombination of electrons and holes, and is widely used in the field of illumination, and therefore, details about the structure and working principle of the LED are not repeated herein.

In the embodiment, the protective cover 3 is arranged on one side of the lamp body 1, which is far away from the lampshade 2, so that an installation space of the heat dissipation assembly 4 is formed between the protective cover 3 and the lamp body 1, and the air flow is facilitated; the heat dissipation plate 41 is attached to the back surface of the light emitting element, so that heat of the light emitting element can be effectively transferred out; the heat dissipation from the heat dissipation plate 41 can be accelerated by the fan 42, so that the heat dissipation effect of the light emitting member is improved, and the service life of the light emitting member is prolonged.

To improve the heat dissipation effect of the heat dissipation plate 41, the heat dissipation plate 41 is provided with fins 411 on the side facing the fan 42. Specifically, the fins 411 are provided in plurality, and the fins 411 are sheet-like structures perpendicular to the heat dissipation plate 41. Further, a plurality of fins 411 are arranged in parallel, and a plurality of passages arranged in parallel are formed between the plurality of fins 411.

Of course, in other embodiments, the cross-sectional shape of the heat dissipation plate 41 is circular, and in this embodiment, the plurality of fins 411 are all radially arranged along the center of the heat dissipation plate 41 in the circumferential direction. This setting makes and forms a plurality of radial passageways that are between a plurality of fins 411, can effectively be with fan 42's wind dispersion to heating panel 41 all around, and then enlarge thermal diffusion scope, improved with external heat exchange's efficiency to improve the radiating efficiency to LED, prolonged LED's life.

Further, the heat sink plate 41 is further provided with additional pieces 412, the additional pieces 412 are provided between any two of the fins 41 and near the outer peripheral portion of the heat sink plate 41, and the dimension of the additional pieces 412 in the radial direction of the heat sink plate 41 is smaller than the dimension of the fins 41 in the radial direction of the heat sink plate 41. This setting has increased heat radiating area, has further improved the radiating efficiency. The fan 42 is a silent fan 42. The heat sink 41, the fins 411, and the additional sheet 412 are preferably made of aluminum.

When the multifunctional hanging rack works, different use environments are frequently encountered, and a workbench for placing a lighting device is not available in some environments, but only hooks for hanging are available; there are circumstances where there is only a work bench and there are no components such as hooks that can be used for hanging. In this embodiment, optionally, the lighting device further includes a first support frame 5 and a second support frame 6. The first support frame 5 is disposed on the lamp body 1, and the first support frame 5 includes a hanging ring for hanging the lamp body 1. The second support frame 6 is arranged on the first support frame 5 and is matched with the first support frame 5 to form a support seat capable of placing the lamp body 1 on a workbench. By means of the arrangement, the lighting device can be used for two purposes, can be hung or placed on a workbench, and is suitable for different working occasions.

Regarding the structure of the first support frame 5, in the present embodiment, optionally, the first support frame 5 includes two first side rods 51 and one first cross rod 52, one end of each of the two first side rods 51 is hinged to the lamp body 1, and two ends of each of the first cross rod 52 are connected to the other ends of the two first side rods 51. This arrangement allows a suspension ring to be formed between the two first side bars 51 and the first cross bar 52, enabling the suspension work of the lamp body 1. The first support frame 5 is U-shaped. Two first side bars 51 and one first cross bar 52 are integrally formed.

Further, the first side rod 51 is hinged to the lamp body 1 through a first damping assembly. This setting can be adjusted the relative angle of lamp body 1 and first side lever 51, and can be fixed in this with the two and predetermine the angle, and when first support frame 5 was fixed for the luminescent part in the lamp body 1 can send directional light.

In other embodiments, optionally, the lamp body 1 is fixed with a mounting shaft, the first side rod 51 is provided with a mounting hole, the mounting hole and the mounting shaft are in interference fit, the mounting shaft is made of metal, preferably stainless steel, the first side rod 51 is made of plastic, and the mounting hole has elasticity.

In order to form the supporting seat structure, in this embodiment, optionally, the second supporting frame 6 includes a second side rod 61, one end of the second side rod 61 is hinged to any one of the first side rods 51, and a hinge point of the second side rod 61 and the first side rod 51 is located between a hinge point of the first side rod 51 and the lamp body 1 and the first cross rod 52; the other end of the second side rod 61 is provided with a first position close to the first side rod 51 and a second position far away from the first side rod 51, and the second side rod 61 can be matched with the first support frame 5 to form a support seat when being located at the second position. With the help of the above structure, the supporting seat can be formed with the second supporting frame 6 when the second side rod 61 is located at the second position, and the supporting seat is supported by the first cross rod 52 and the second side rod 61, so that a triangular structure is formed, and the supporting performance is stable.

Further, in order to enable the second side rod 61 to be stably located at the second position and to enable the lighting device to be placed on the work tables with different areas, in this embodiment, it is preferable that a hinge shaft is provided between the second side rod 61 and the first side rod 51, the second side rod 61 is provided with an arc-shaped hole, and a center of the arc-shaped hole is located on an axis of the hinge shaft; the first side rod 51 is provided with a fastening screw hole, and the fastening screw 7 penetrates through the arc-shaped hole and then is in threaded connection with the fastening screw hole and can tightly press the second side rod 61 to the first side rod 51. This arrangement enables, on the one hand, the second side bar 61 to be fixed in the second position; on the other hand, the second side rod 61 can be fixed on the second side rod 61 at any position between the first position and the second position, so that the bottom area of the supporting seat formed by the second side rod 61 and the first supporting frame 5 can be adjusted, and the supporting seat can be placed on workbenches with different areas.

Optionally, the second side bar 61 is hinged to the first side bar 51 by a second damping assembly. This arrangement makes it easier to adjust the second side bar 61 process. The structure of the second damping assembly is similar to that of the first damping assembly, and therefore, the description thereof is omitted.

Of course, in other embodiments, two second side bars 61 may be provided, and the second support frame 6 further includes a second cross bar 62, and the second cross bar 62 is provided at the other end of the two second side bars 61. The second support frame 6 is U-shaped. Further, the inner side surface and the outer side surface of the first side rod 51 are provided with avoidance parts, the second side rod 61 is provided with a mounting groove, when the second side rod 61 is located at the first position, part of the first side rod 51 is located in the mounting groove of the second side rod 61, and two sides of the second side rod 61 are respectively located in the two avoidance parts. This arrangement allows the first side bar 51 and the second side bar 61 to be parallel and form a handle which is compact and symmetrical for ease of handling or hanging, especially when suspended, without the lamp body 1 being prone to tilting.

Preferably, the lighting device further comprises a first lens 21, the first lens 21 is disposed on the lamp body 1 and located between the lampshade 2 and the luminous element, and the first lens 21 is used for magnifying the shape of the light source emitted by the luminous element. The arrangement can clearly enlarge the shape of the light source emitted by the luminous element most appropriately. Optionally, the first lens 21 is a convex lens. In addition, the distance between the convex lens and the luminous member is adjustable. Specifically, the convex lens is provided to the lamp body 1 through the bracket 22. The support 22 is a bell mouth-shaped shell structure, one end of the support 22 is connected to the outer side of the light-emitting part and is sealed through sealant, and the other end of the support 22 is connected with the convex lens and is sealed through sealant. This arrangement prevents impurities from entering the support 22, thereby avoiding the light source from being shielded and ensuring the purity of the light source. The bracket 22 is screwed to the lamp body 1, and a gasket is provided between the bracket 22 and the lamp body 1.

Optionally, the lighting device further comprises a second lens 23, the second lens 23 is disposed on the lamp housing 2, and the second lens 23 is used for changing the shape of the light source passing through the first lens 21. The focal point of the convex lens, the center of the second lens 23 and the light emitting member are located on the same axis. The shape of the light source can be changed according to the requirements of the working environment, and the shape of the light source can be widened or lengthened when the working range is rectangular.

Specifically, the second lens 23 is a corrugated lens, that is, the second lens 23 has a wave-shaped structure along a section perpendicular to the light direction. The slit between every two corrugations extends along a first direction or a second direction, the first direction is perpendicular to the second direction, and the first direction and the second direction are perpendicular to the light direction. This arrangement enables the shape of the light source to be extended in different directions.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An illumination device, comprising:

the lamp body (1), the said lamp body (1) has luminescent pieces;

the lampshade (2) is arranged on the lamp body (1) and covers the outer side of the luminous piece;

the protective cover (3) is arranged on one side, away from the lampshade (2), of the lamp body (1), and the protective cover (3) is provided with a ventilation hole;

Radiator unit (4), radiator unit (4) include heating panel (41) and fan (42), heating panel (41) subsides are located the back of illuminating part, fan (42) are located in protection casing (3) and be located heating panel (41) are kept away from one side of illuminating part.

2. A lighting device as claimed in claim 1, characterized in that the side of the heat-dissipating plate (41) facing the fan (42) is provided with fins (411).

3. A lighting device as recited in claim 1, further comprising:

the first support frame (5) is arranged on the lamp body (1), and the first support frame (5) comprises a hanging ring for hanging the lamp body (1);

and the second support frame (6) is arranged on the first support frame (5) and matched with the first support frame (5) to form a support seat capable of placing the lamp body (1) on a workbench.

4. A lighting device as claimed in claim 3, wherein said first supporting frame (5) comprises two first side rods (51) and a first cross rod (52), one end of each of said two first side rods (51) is hinged to said lamp body (1), and two ends of said first cross rod (52) are connected to the other end of each of said two first side rods (51).

5. A lighting device as claimed in claim 4, characterized in that said first side bar (51) is hinged to said lamp body (1) through a first damping assembly.

6. The lighting device according to claim 4, wherein the second support frame (6) comprises a second side bar (61), one end of the second side bar (61) is hinged to any one of the first side bars (51), and a hinge point of the second side bar (61) and the first side bar (51) is located between the hinge point of the first side bar (51) and the lamp body (1) and the first cross bar (52); the other end of the second side rod (61) is provided with a first position close to the first side rod (51) and a second position far away from the first side rod (51), and when the second side rod (61) is located at the second position, the second side rod and the first support frame (5) can be matched to form a support seat.

7. The lighting device according to claim 6, wherein an articulated shaft is arranged between the second side rod (61) and the first side rod (51), the second side rod (61) is provided with an arc-shaped hole, and the center of the arc-shaped hole is positioned on the axis of the articulated shaft; the first side rod (51) is provided with a fastening screw hole, and a fastening screw (7) penetrates through the arc-shaped hole and then is in threaded connection with the fastening screw hole and can press the second side rod (61) against the first side rod (51).

8. The lighting device according to claim 7, wherein the second side rods (61) are provided in two, and the second supporting frame (6) further comprises a second cross bar (62), and the second cross bar (62) is provided at the other end of the two second side rods (61).

9. A lighting device as claimed in any one of claims 1-8, further comprising a first lens (21), said first lens (21) being disposed on said lamp body (1) and being located between said cover (2) and said light-emitting member, said first lens (21) being adapted to magnify the shape of the light source emitted by said light-emitting member.

10. A lighting device as claimed in claim 9, characterized in that the lighting device further comprises a second lens (23), the second lens (23) being provided at the lamp housing (2), the second lens (23) being adapted to change the shape of the light source passing through the first lens (21).