LED lighting device for museum

Abstract

The LED lighting device for the museum comprises a base, a protective cover is movably connected to the upper portion of the base, and a lighting structure is movably connected to the top end of the protective cover. The lighting structure comprises a mounting plate, a plurality of mounting grooves arranged in a rectangular shape are formed in the bottom of the mounting plate in a penetrating mode, inner cavities of the mounting grooves are fixedly connected with mounting frames, and LED substrates are mounted at the top ends of the mounting frames. By using the illumination structure, the situation that light directly irradiates an exhibit, and consequently the surface of the exhibit reflects light seriously can be avoided, the light generated by the LED substrate firstly penetrates through the light diffusion lampshade before irradiating the base, and the light can softly irradiate the surface of the exhibit after being scattered in the light diffusion lampshade, so that details on the surface of the exhibit can be observed conveniently; therefore, the ornamental value of the exhibit is ensured on the premise that the light brightness is not reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting devices, in particular to an LED lighting device for museums. Background Art

[0002] Light-emitting diodes, or LEDs for short, are a commonly used light-emitting device that emits light through the recombination of electrons and holes. They are widely used in the lighting field. When museums exhibit cultural relics, they generally need to supplement the lighting of the exhibits to facilitate visitors' appreciation. LEDs do not contain harmful substances such as mercury, so their impact on the environment after disposal is small and they are easy to recycle. At the same time, LEDs generate less heat, reducing the safety risks posed to cultural relics and exhibits by high temperatures. Therefore, they are widely used in the lighting of museum exhibits.

[0003] After searching, it was found that museums currently generally use LED spotlights to illuminate exhibits. However, since the light of LED spotlights is relatively concentrated, the areas directly illuminated by the exhibits are more reflective. This is especially true for objects with smooth surfaces such as porcelain. Under the illumination of the light, it directly affects the visitors' observation of details such as the texture on the surface of the exhibits. In addition, since the light generally illuminates the exhibits from above or diagonally above, the lower end of the artifact is easily covered by the shadow cast by the upper end, which affects the aesthetics.

[0004] Therefore, we propose an LED lighting device for museums to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide an LED lighting device for museums to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An LED lighting device for a museum comprises a base, a protective cover movably connected to the upper portion of the base, and a lighting structure movably connected to the top portion of the protective cover;

[0008] The lighting structure includes a mounting plate, a bottom of which is penetrated by a plurality of mounting grooves arranged in a rectangular shape, an inner cavity of the mounting groove is fixedly connected to a mounting frame, and a top end of the mounting frame is mounted with an LED substrate.

[0009] As a further solution of the present invention, the top end of the base is fixedly connected to a pedestal, and the top end of the base is located on the periphery of the pedestal and is connected to a reflective frame.

[0010] As a further solution of the present invention, the bottom end of the mounting plate is located below the LED substrate and is movably connected to a light-scattering lampshade.

[0011] As a further solution of the present invention, the top of the mounting plate is fixedly connected to a top plate, the side wall of the top plate is penetrated by a ventilation groove, the inner wall of the mounting groove is located above the LED substrate and is fixedly connected to a support plate, and a cooling fan is installed on the top of the support plate.

[0012] As a further solution of the present invention, a supporting plate is fixedly connected to the inner wall of the mounting plate, and a battery is installed on the top of the supporting plate.

[0013] As a further solution of the present invention, filter plates are installed on the top of the top plate and the inner wall of the ventilation groove, and dehumidification plates are installed on the top of the top plate below the filter plate and the inner wall of the ventilation groove on one side of the filter plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The LED lighting device for museums can avoid direct light on exhibits and cause severe reflection on the exhibit surface through the use of a lighting structure. The light generated by the LED substrate will first pass through the diffuser lampshade before irradiating the base. After being scattered in the diffuser lampshade, the light can be softly irradiated on the exhibit surface, making it easier to observe the details of the exhibit surface, thereby ensuring the viewing experience of the exhibit without reducing the brightness of the light.

[0016] 2. The LED lighting device for museums uses a reflector frame. The light from the LED substrate above the exhibit can be reflected in the direction of the exhibit through the reflector frame to avoid shadows in the lower part of the exhibit that is not illuminated by the LED substrate, further improving the viewing experience of the exhibit and effectively making secondary use of the light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of an LED lighting device used in museums.

[0018] Figure 2 This is a schematic diagram of the internal structure of an LED lighting device used in museums.

[0019] Figure 3 This is a schematic diagram of the disassembled lighting structure of an LED lighting device used in museums.

[0020] Figure 4 An LED lighting device for museums Figure 3 Schematic bottom view of the structure shown in .

[0021] In the figure: 1. Base; 2. Protective cover; 3. Lighting structure; 4. Reflector; 5. Pedestal;

[0022] 31. Mounting plate; 32. Top plate; 33. Mounting slot; 34. Ventilation slot; 35. Filter plate

[0023] ; 36. Dehumidification plate; 37. Battery; 38. Mounting frame; 39. LED substrate;

[0024] 301. Support plate; 302. Cooling fan; 303. Heat sink; 304. Diffuser lampshade; 305. Magnetic block; 306. Support plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1:

[0027] See also Figures 1 to 4 The utility model provides a technical solution for an LED lighting device for a museum: comprising a base 1, a protective cover 2 for protecting exhibits being movably connected to the top of the base 1, and a lighting structure 3 for illuminating the exhibits being movably connected to the top of the protective cover 2;

[0028] The lighting structure 3 includes a mounting plate 31, the bottom of which is penetrated by a plurality of mounting grooves 33 arranged in a rectangular shape. The inner cavity of the mounting groove 33 is fixedly connected to a mounting frame 38, and the top of the mounting frame 38 is detachably mounted with an LED substrate 39 by bolts.

[0029] The top of the base 1 is fixedly connected to a base 5, and the top of the base 1 is located outside the base 5 and is connected to a reflector 4 for supplementary lighting at the bottom of the exhibit.

[0030] Specifically, by Figure 2 As shown, the reflector frame 4 is composed of four reflectors arranged in a rectangular shape and inclined toward the base 5. The light irradiated by the LED substrate 39 can provide supplementary light to the exhibits placed on the top of the base 5 from below under the action of the reflector frame 4.

[0031] The bottom end of the mounting plate 31 is located below the LED substrate 39 and is movably connected to a diffuser lampshade 304 for diffusing light. The diffuser lampshade 304 is made of a transparent acrylic plate. The bottom end of the mounting plate 31 and the top end of the diffuser lampshade 304 are both installed with magnetic blocks 305, and the mounting plate 31 and the diffuser lampshade 304 are magnetically connected through the magnetic blocks 305. The magnetic blocks 305 facilitate the loading and unloading of the diffuser lampshade 304, thereby facilitating the replacement of the diffuser lampshade 304.

[0032] Example 2:

[0033] See also Figure 3 、 4 The top of the mounting plate 31 is fixedly connected to a top plate 32, and the top of the top plate 32 is fixedly connected to a number of equidistantly distributed heat sinks 303. The heat sinks 303 can absorb the heat generated by the LED substrate 39 during operation and dissipate the heat in a heat exchange manner, thereby preventing heat from gathering above the LED substrate 39, which affects the stability of the LED substrate 39. The side wall of the top plate 32 is penetrated by a ventilation groove 34 for air circulation. The inner wall of the mounting groove 33 is located above the LED substrate 39 and is fixedly connected to a support plate 301. The top of the support plate 301 is detachably mounted with a cooling fan 302 for dissipating heat from the LED substrate 39 by bolts.

[0034] A support plate 306 is fixedly connected to the inner wall of the mounting plate 31, and a battery 37 for powering the LED substrate 39 and the cooling fan 302 is installed on the top of the support plate 306. Under the action of the battery 37, the device can be used for a long time without an external power supply. It only needs to charge the battery 37 regularly to reduce the restrictions on the device caused by external circuits.

[0035] The top of the top plate 32 and the inner wall of the ventilation groove 34 are both installed with a filter plate 35 for filtering the air, and the top of the top plate 32 located below the filter plate 35 and the inner wall of the ventilation groove 34 located on one side of the filter plate 35 are both installed with a dehumidification plate 36 for dehumidification, and the dehumidification plate 36 is made of activated carbon.

[0036] The working principle of this utility model is:

[0037] When in use, the exhibit is placed in the middle of the top of the base 5, and the LED substrate 39 is powered to illuminate the exhibit from above;

[0038] Depend on Figure 2 、 3 As shown in FIG4 , there are four mounting slots 33 arranged in a rectangular shape. Therefore, when an exhibit is located in the middle of the top of the base 5 , no LED substrate 39 is located directly above the exhibit, thereby preventing light from directly hitting the exhibit and causing severe glare on the exhibit surface.

[0039] Depend on Figure 2 、 3As shown, the diffuser lampshade 304 is located between the LED substrate 39 and the base 5. Therefore, the light generated by the LED substrate 39 first passes through the diffuser lampshade 304 before irradiating the base 5. After being scattered in the diffuser lampshade 304, the light can be softly irradiated on the surface of the exhibit, thereby ensuring the viewing experience of the exhibit without reducing the brightness of the light.

[0040] Since the LED substrate 39 illuminates the exhibit from above, in order to reduce shadows at the lower end of the exhibit, the device is provided with a reflector 4 to supplement the lower end of the exhibit. Since the reflector 4 is composed of four reflectors arranged in a rectangular shape and inclined toward the base 5, the light irradiated from the LED substrate 39 from above the exhibit can be reflected by the reflector 4 in the direction of the exhibit, thereby preventing shadows from appearing in the lower end of the exhibit not illuminated by the LED substrate 39. This further enhances the viewing experience of the exhibit and effectively makes secondary use of the light source.

[0041] To ensure the reliable operation of the LED substrate 39, the device is provided with a heat sink 303 to absorb and dissipate the heat generated by the LED substrate 39 during operation, thereby preventing the LED substrate 39 from being aged or damaged due to overheating. At the same time, when the ambient temperature is high, the cooling fan 302 can be started to accelerate the flow of airflow, thereby further improving the heat dissipation efficiency of the LED substrate 39. At the same time, the airflow driven by the cooling fan 302 can remove dust that may have accumulated on the surface of the LED substrate 39, thereby ensuring the stable operation of the LED substrate 39.

[0042] The ventilation slots 34 are used for ventilation and heat dissipation of the LED substrate 39. The setting of the filter plate 35 can prevent dust in the external air from entering the device through the ventilation slots 34, causing pollution to the LED substrate 39, thereby improving practicality. The setting of the dehumidification plate 36 can absorb moisture in the air to prevent water vapor from gathering and causing damage to the circuit of the LED substrate 39, further improving practicality.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An LED lighting device for a museum, comprising a base (1), characterized in that: A protective cover (2) is movably connected to the upper portion of the base (1), and a lighting structure (3) is movably connected to the top of the protective cover (2); The lighting structure (3) comprises a mounting plate (31), a bottom of the mounting plate (31) being provided with a plurality of mounting grooves (33) arranged in a rectangular shape, an inner cavity of the mounting groove (33) being fixedly connected to a mounting frame (38), and an LED substrate (39) being mounted on the top of the mounting frame (38).

2. The LED lighting device for a museum according to claim 1, characterized in that: The top end of the base (1) is fixedly connected to a pedestal (5), and the top end of the base (1) is located on the periphery of the pedestal (5) and is connected to a reflective frame (4).

3. The LED lighting device for a museum according to claim 1, characterized in that: The bottom end of the mounting plate (31) is located below the LED substrate (39) and is movably connected to a light-scattering lampshade (304).

4. The LED lighting device for a museum according to claim 1, characterized in that: The top of the mounting plate (31) is fixedly connected to a top plate (32), a ventilation slot (34) is provided through the side wall of the top plate (32), an inner wall of the mounting slot (33) is fixedly connected to a support plate (301) located above the LED substrate (39), and a cooling fan (302) is installed at the top of the support plate (301).

5. The LED lighting device for a museum according to claim 1, characterized in that: A supporting plate (306) is fixedly connected to the inner wall of the mounting plate (31), and a storage battery (37) is installed on the top of the supporting plate (306).

6. The LED lighting device for a museum according to claim 4, characterized in that: The top of the top plate (32) and the inner wall of the ventilation slot (34) are both installed with a filter plate (35), and the top of the top plate (32) is located below the filter plate (35) and the inner wall of the ventilation slot (34) is located on one side of the filter plate (35) and a dehumidification plate (36) is installed.

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