Area light source and refrigeration equipment

Abstract

The invention provides an area light source and refrigeration equipment, and the area light source comprises a panel which has light guiding performance and is provided with four side walls; the frame is arranged on the periphery of the panel, and a cavity is formed between the frame and the side wall of the panel; the light source assembly is arranged in the cavity, the light source assembly comprises a light bar, a color changing barrel and a driving mechanism, the color changing barrel comprises a light-transmitting membrane with at least two colors, the at least two colors are adjacently arranged in the circumferential direction of the color changing barrel, and the light bar and the driving mechanism are arranged in the color changing barrel; and the driving mechanism drives the color changing cylinder to rotate or move, so that any color on the color changing cylinder is opposite to the side wall of the panel. The area light source comprises the light changing barrel formed by the light-transmitting membrane, the driving mechanism drives the light changing barrel to rotate or move so that any color of the light-transmitting membrane can face the panel and provide the color, and multiple colors can be arranged on the light-transmitting membrane so that the area light source can provide light of different colors.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a surface light source and a refrigeration equipment with the surface light source. Background Art

[0002] At present, refrigerator lighting uses a white light source, which is always on when the door is opened, and has no other functions except lighting, and has no characteristics. However, if multiple light sources need to be added to display multiple states, they can only be controlled individually, which increases design time and production costs. Summary of the invention

[0003] The purpose of the present application is to provide a surface light source and a refrigeration device, in which a light-transmitting membrane with at least two colors in the surface light source is driven to rotate or move by a driving mechanism, so that the light generated by the light strip passes through the membrane and irradiates the panel to form light sources of different colors, thereby solving the problem in the prior art that the surface light source has a single color or the multi-color light source needs to be controlled separately, resulting in increased costs.

[0004] In order to achieve one of the above-mentioned purposes of the invention, an embodiment of the present application provides a surface light source, including:

[0005] A panel having light-guiding properties and formed with four side walls;

[0006] A frame, arranged around the panel and forming a cavity between the frame and the side wall of the panel;

[0007] A light source assembly is arranged in the cavity, the light source assembly includes a light bar, a color-changing tube and a driving mechanism, the color-changing tube includes a light-transmitting film with at least two colors, and the at least two colors are adjacently arranged along the circumference of the color-changing tube. The light bar and the driving mechanism are arranged in the color-changing tube, and the driving mechanism drives the color-changing tube to rotate or move so that any color on the color-changing tube is opposite to the side wall of the panel.

[0008] In one embodiment of the present application, the cross section of the color-changing tube is polygonal, and each face of the color-changing tube corresponds to a different color.

[0009] In one embodiment of the present application, the driving mechanism includes a motor and a driving wheel, and the color-changing cylinder also includes a rotating shaft. There are at least three rotating shafts, and at least three rotating shafts are arranged in the light-transmitting film, and the light-transmitting film is supported so that the formed color-changing cylinder has at least three surfaces. The motor drives the driving wheel to rotate, driving the light-transmitting film to move or rotate.

[0010] In one embodiment of the present application, four rotating shafts are provided; in two frames adjacent to the frame in which the light source assembly is provided, four first fixing grooves are provided near one end of the light source assembly, and both ends of the four rotating shafts are provided in the first fixing grooves and can rotate in the first fixing grooves.

[0011] In one embodiment of the present application, the driving mechanism further includes a driving shaft connected to the driving wheel, and the motor drives the driving shaft to rotate to drive the driving wheel to rotate.

[0012] In one embodiment of the present application, the driving mechanism further includes a first wheel, a second wheel and a transmission belt connecting the first wheel and the second wheel, and the motor includes a driving shaft, the driving shaft passes through the first wheel, and the driving shaft passes through the second wheel and the driving wheel.

[0013] In one embodiment of the present application, the driving shaft is provided with a first protrusion, the active shaft is provided with a second protrusion and a third protrusion, and the first wheel, the second wheel and the active wheel are provided with a first groove, a second groove and a third groove respectively corresponding to the first protrusion, the second protrusion and the third protrusion.

[0014] In one embodiment of the present application, the driving mechanism is disposed on a side of the light bar away from the panel.

[0015] In one embodiment of the present application, the panel includes a reflective plate, a light guide plate and a diffuser plate which are arranged in sequence.

[0016] An embodiment of the present application further provides a refrigeration device, comprising a box body formed with a refrigeration compartment and a surface light source arranged on the inner wall of the refrigeration compartment, wherein the surface light source is the surface light source as described above.

[0017] One or more technical solutions provided by this application have at least the following technical effects or advantages:

[0018] In the surface light source provided by the present application, a light-transmitting film with at least two colors is made into a cylindrical shape and driven by a driving mechanism so that any color on the color-changing cylinder is opposite to the side wall of the panel, so that the light generated by the light strip arranged in the color-changing cylinder is transmitted through the colored color-changing cylinder to the panel, so that the panel can present different colors as the color-changing cylinder rotates or moves, and a multi-color surface light source can be generated by the cooperation of a driving mechanism and the color-changing cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the surface light source in the embodiment of the present application.

[0020] Figure 2 yes Figure 1 Schematic cross-sectional view along line AA.

[0021] Figure 3 yes Figure 2 Take a local structure diagram from .

[0022] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0023] Figure 5 yes Figure 1 Schematic diagram of the structure of the left frame.

[0024] Figure 6 yes Figure 5 Take a local structure diagram from .

[0025] Figure 7 yes Figure 4 Schematic diagram of the structure of the driving mechanism.

[0026] Figure 8 yes Figure 4 Schematic diagram of the structure of the middle drive structure from another angle.

[0027] 1. Panel; 11. Reflector; 12. Light guide plate; 13. Diffuser;

[0028] 21. light bar; 22. color-changing tube; 221. light-transmitting film; 222. rotating shaft; 23. driving mechanism; 231. motor; 2311. driving shaft; 2312. first convex block; 232. driving wheel; 233. driving shaft; 2331. second convex block; 2332. third convex block; 234. first wheel; 235. second wheel; 236. transmission belt;

[0029] 3. Frame; 31. First fixing groove; 32. Second fixing groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] Terms such as "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used herein to indicate spatial relative positions are used for the purpose of convenience to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. Terms of spatial relative positions may be intended to include different orientations of the device in use or operation other than the orientation shown in the drawings.

[0032] For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] Furthermore, it should be understood that although the terms first, second, etc. may be used herein to describe various elements or structures, these described objects should not be limited by these terms. These terms are only used to distinguish these described objects from each other. For example, the first wheel may be referred to as the second wheel, and similarly the second wheel may be referred to as the first wheel, without departing from the scope of protection of this application.

[0035] An embodiment of the present application provides a surface light source, which can be applied to a refrigeration device, wherein the refrigeration device includes a box body formed with a refrigeration chamber, and the surface light source can be arranged on any inner wall surface of the refrigeration chamber. Therefore, the present application also provides a refrigeration device provided with the above-mentioned surface light source.

[0036] like Figure 3 , 4 As shown, the aforementioned surface light source includes a panel 1, a frame 3 and a light source assembly, wherein the panel 1 has light-guiding properties and is formed with four side walls; the frame 3 is arranged on the four sides of the panel 1 and forms a cavity between the frame 3 and the side walls of the panel 1; the light source assembly is arranged in the cavity, and the light source assembly includes a light bar 21, a color-changing tube 22 and a driving mechanism 23, the color-changing tube 22 includes a light-transmitting film 221 with at least two colors, and the at least two colors are adjacently arranged along the circumference of the color-changing tube 22, the light bar 21 and the driving mechanism 23 are arranged in the color-changing tube 22, and the driving mechanism 23 drives the color-changing tube 22 to rotate or move so that any color on the color-changing tube 22 is opposite to the side wall of the panel 1.

[0037] The panel 1 has two sides that can be used for lighting and have a larger area (but usually only one side is illuminated and the other side is not used for lighting) and four side walls perpendicular to the two side sides, among which the side used for lighting one side is the front side, and the side corresponding to the front side is the rear side. Therefore, the four side walls of the panel 1 include a top wall, a bottom wall, and horizontal left and right walls.

[0038] The cross-section of the frame 3 arranged on any side of the panel 1 is U-shaped. The U-shaped frame 3 covers the front and rear sides of the four sides of the panel 1 and forms a cavity with the side of the panel 1. The size of the cavity can be limited according to whether a light source component is set in the cavity. If a light source component is required to be set in the cavity, the cavity can be set larger. If a light source component is not required to be set, the cavity can be set smaller.

[0039] Figures 1 to 8 In the surface light source shown, the light source assembly is arranged between the top wall of the panel 1 and the frame 3. Of course, the light source assembly can also be arranged between other side walls and the frame 3, and the number of light source assemblies is not limited. This application only takes the light source assembly being arranged on the top of the panel 1 as an example.

[0040] The color-changing tube 22 in the light source assembly includes a transparent film 221 with at least two colors. The transparent film 221 is connected at two sides perpendicular to the arrangement direction of at least two colors to form a cylindrical color-changing tube 22, and at the same time, at least two colors are arranged adjacent to each other along the circumference of the color-changing tube 22.

[0041] The driving mechanism 23 is disposed in the color changing cylinder 22, and drives the color changing cylinder 22 to rotate or move. Specifically, the driving mechanism 23 drives the color changing cylinder 22 to move as follows: the shape of the color changing cylinder 22 remains unchanged, but the light-transmitting film 221 is deformed under the driving of the driving mechanism 23, and the light-transmitting film 221 moves along the circumferential direction of the color changing cylinder 22 (refer to the following and Figure 4 ). Specifically, the driving mechanism 23 drives the color-changing cylinder 22 to rotate: the driving mechanism 23 drives the color-changing cylinder 22 to rotate about an axis. At this time, the light-transmitting film 221 can be a soft material or a hard material. When the light-transmitting film 221 is a soft material, a supporting structure is required to maintain the light-transmitting film 221 in a fixed shape. When the transparent film is a hard material, the transparent film can be directly processed into a cylindrical shape during production instead of being bent from a sheet.

[0042] When the driving mechanism 23 drives the color-changing tube 22 to rotate or move, one of the color positions in the color-changing tube 22 can be facing downward (the corresponding light source component is located at the top) facing the top wall of the panel 1, and under the illumination of the light bar 21, it passes through the light-transmitting film 221 and illuminates the panel 1, and the light of the corresponding color is obtained by guiding the light through the panel 1.

[0043] In some embodiments, the driving mechanism 23 is disposed on the side of the light bar 21 away from the panel 1 , so that when the light bar 21 emits light, the light can directly irradiate the transparent film 221 without being blocked by the driving mechanism 23 to affect the transmission of light.

[0044] In some embodiments, the panel 1 includes a reflector 11, a light guide plate 12, and a diffuser 13 arranged in sequence. When the light bar 21 emits light, the light passes through the light-transmitting film 221 and becomes colored light, which is irradiated on the light guide plate 12. The colored light is reflected in the light guide plate 12 and propagates to the entire surface of the panel 1. When the light is transmitted to the reflector 11, it is reflected by the reflector 11 into the light guide plate 12 and then refracted to the diffuser 13, and is evenly diffused by the diffuser 13 to present a soft light source. It can be seen from this that the diffuser 13 is located at the front side and the reflector 11 is located at the back side.

[0045] In some embodiments, the cross section of the color-changing tube 22 is polygonal, and each side of the color-changing tube 22 corresponds to a different color. Compared with cylindrical structures with curved edges such as circular tubes or elliptical tubes, the side of the polygonal tube is flat, and the light bar 21 is more uniform when irradiated.

[0046] In some embodiments, each side of the color-changing tube 22 with a polygonal cross section is of the same size, or in other words, the polygon is a regular polygon, so when the surface light source needs to switch colors, the color-changing tube 22 has a fixed angle when it rotates or moves once. The cross section of the color-changing tube 22 is a regular polygon, which can ensure that only one color is facing the top wall of the panel 1 at a time, preventing the widths of multiple colors from being inconsistent, and the color reflected by the surface light source may be uneven when switching.

[0047] In some embodiments, the driving mechanism 23 includes a motor 231 and a driving wheel 232, and the color-changing tube 22 also includes a rotating shaft 222. There are at least three rotating shafts 222. At least three rotating shafts 222 are arranged in the cylindrical light-transmitting film 221, and the light-transmitting film 221 is supported so that the formed color-changing tube 22 has at least three surfaces. The motor 231 drives the driving wheel 232 to rotate, driving the light-transmitting film 221 to move or rotate.

[0048] At least three rotating shafts 222 can support the color-changing barrel 22 into at least three surfaces, that is, the number of the rotating shafts 222 is the same as the number of surfaces of the color-changing barrel 22, and at least three rotating shafts 222 tighten the light-transmitting film 221 to maintain the color-changing barrel 22 with a fixed shape. The driving wheel 232 is in contact with the light-transmitting film 221, and the motor 231 drives the driving wheel 232 to rotate to drive the light-transmitting film 221 to move or rotate. When the rotating shaft 222 is fixed, the light-transmitting film 221 moves relative to the rotating shaft 222 along the circumference of the color-changing barrel 22, and when the rotating shaft 222 is not fixed, the light-transmitting film 221 rotates together with the rotating shaft 222.

[0049] In some embodiments, four rotating shafts 222 are provided; in two frames 3 adjacent to the frame 3 provided with the light source assembly, four first fixing grooves 31 are provided near one end of the light source assembly, and both ends of the four rotating shafts 222 are provided in the first fixing grooves 31 and can rotate in the first fixing grooves 31.

[0050] Figure 6 middle( Figure 6 Only the frame 3 is set at the left wall, and the frame 3 set at the right wall is Figure 6 The top of the frame 3 is symmetrically arranged, that is, the left wall and the right wall are provided with four first fixed grooves 31, and the shape formed by the four first fixed grooves 31 connected in sequence is the shape of the color-changing cylinder 22. The four first fixed grooves 31 arranged on the left wall and the right wall are used to position the two ends of the four rotating shafts 222. The four rotating shafts 222 support the transparent film 221 to form four faces. When the motor 231 drives the driving wheel 232 to rotate, the driving wheel 232 drives the transparent film 221 to move through the friction force, and the two ends of the four rotating shafts 222 are arranged in the first fixed grooves 31, the position is fixed but can be rotated along the axis of the rotating shaft 222, which can reduce the friction force when the transparent film 221 rotates. Of course, the two ends of the four rotating shafts 222 can also be fixed in the first fixed grooves 31, at this time, when the transparent film 221 rotates, friction also occurs between it and the rotating shaft 222 and moves relative to the rotating shaft 222.

[0051] In some embodiments, the driving mechanism 23 also includes a driving shaft 233 connected to the driving wheel 232. The motor 231 drives the driving shaft 233 to rotate to drive the driving wheel 232 to rotate. The motor 231 can directly drive the driving shaft 233 to rotate (the driving shaft 2311 below can be used as the driving shaft 233, that is, direct drive), or it can indirectly drive the driving shaft 233 to rotate.

[0052] In some embodiments, the driving mechanism 23 also includes a first wheel 234, a second wheel 235 and a transmission belt 236 connecting the first wheel 234 and the second wheel 235, and the motor 231 includes a driving shaft 2311, the driving shaft 2311 passes through the first wheel 234, and the driving shaft 233 passes through the second wheel 235 and the driving wheel 232.

[0053] The motor 231 drives the driving shaft 2311 to rotate. The driving shaft 2311 passes through the first wheel 234, so that the driving shaft 2311 can drive the first wheel 234 to rotate. The first wheel 234 and the second wheel 235 are connected by a transmission belt 236. Therefore, the first wheel 234 can drive the second wheel 235 to rotate through the transmission belt 236. The driving shaft 233 passes through the second wheel 235 and can be driven by the second wheel 235 to rotate. The driving shaft 233 also passes through the driving wheel 232, so that the driving shaft 233 drives the driving wheel 232 to rotate. The driving wheel 232 contacts the light-transmitting film 221 and drives the light-transmitting film 221 to rotate through friction. The light-transmitting film 221 and the rotating shaft 222 have static friction, so that the light-transmitting film 221 rotates while the rotating shaft 222 rotates in the first fixed groove 31 along the axis of the rotating shaft 222.

[0054] In some embodiments, the frame 3 provided at the left wall and the right wall is further provided with a second fixing groove 32, and both ends of the driving shaft 233 are provided in the second fixing groove 32, and can rotate along the axis of the driving shaft 233 under the drive of the motor 231. By fixing the position of the driving shaft 233 by the second fixing groove 32, the overall stability of the driving mechanism 23 can be enhanced, and the driving shaft 233 is prevented from swinging when the driving mechanism 23 is running, so that the driving wheel 232 cannot contact the light-transmitting film 221 and the light-transmitting film 221 cannot move.

[0055] In some embodiments, the driving shaft 2311 is provided with a first protrusion 2312, the driving shaft 233 is provided with a second protrusion 2331 and a third protrusion 2332, and the first wheel 234, the second wheel 235 and the driving wheel 232 are respectively provided with a first groove, a second groove and a third groove corresponding to the first protrusion 2312, the second protrusion 2331 and the third protrusion 2332. The first groove, the second groove and the third groove respectively wrap the first protrusion 2312, the second protrusion 2331 and the third protrusion 2332, that is, the first groove, the second groove and the third groove are close to the positions of the first protrusion 2312, the second protrusion 2331 and the third protrusion 2332, which are not shown in the figure.

[0056] Since the driving shaft 2311 passes through the first wheel 234, and the driving shaft 233 passes through the second wheel 235 and the driving wheel 232, the first wheel 234, the second wheel 235 and the driving wheel 232 must be provided with through holes for the driving shaft 2311 or the driving shaft 233 to pass through, the first groove corresponds to the shape of the first protrusion 2312 and is connected to the through hole on the first wheel 234, the second groove corresponds to the shape of the second protrusion 2331 and is connected to the through hole on the second wheel 235, and the third groove corresponds to the shape of the third protrusion 2332 and is connected to the through hole on the driving wheel 232, so that when the driving shaft 2311 rotates, the first wheel 234, the second wheel 235, the driving shaft 233 and the driving wheel 232 can be driven and rotated in sequence.

[0057] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0058] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present application. They are not intended to limit the scope of protection of the present application. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present application should be included in the scope of protection of the present application.

Claims

1. A surface light source, characterized in that: include: A panel (1) having light-guiding properties and formed with four side walls; A frame (3) is arranged around the panel (1) and forms a cavity between the frame and the side wall of the panel (1); A light source assembly is arranged in the cavity, the light source assembly comprising a light bar (21), a color-changing tube (22) and a driving mechanism (23), the color-changing tube (22) comprising a light-transmitting film (221) with at least two colors, the at least two colors being arranged adjacent to each other along the circumference of the color-changing tube (22), the light bar (21) and the driving mechanism (23) being arranged in the color-changing tube (22), the driving mechanism (23) driving the color-changing tube (22) to rotate or move so that any color on the color-changing tube (22) is opposite to the side wall of the panel (1).

2. The surface light source according to claim 1, characterized in that: The cross section of the color-changing tube (22) is polygonal, and each face of the color-changing tube (22) corresponds to a different color.

3. The surface light source according to claim 2, characterized in that: The driving mechanism (23) comprises a motor (231) and a driving wheel (232); the color-changing cylinder (22) further comprises a rotating shaft (222); at least three rotating shafts (222) are provided; at least three rotating shafts (222) are provided in the light-transmitting film (221) and support the light-transmitting film (221) so that the color-changing cylinder (22) has at least three surfaces; the motor (231) drives the driving wheel (232) to rotate, thereby driving the light-transmitting film (221) to move or rotate.

4. The surface light source according to claim 3, characterized in that: Four rotating shafts (222) are provided; in two frames (3) adjacent to the frame (3) provided with the light source assembly, four first fixing grooves (31) are provided at one end close to the light source assembly, and both ends of the four rotating shafts (222) are provided in the first fixing grooves (31) and can rotate in the first fixing grooves (31).

5. The surface light source according to claim 4, characterized in that: The driving mechanism (23) further comprises a driving shaft (233) connected to the driving wheel (232); the motor (231) drives the driving shaft (233) to rotate, thereby driving the driving wheel (232) to rotate.

6. The surface light source according to claim 5, characterized in that: The driving mechanism (23) further comprises a first wheel (234), a second wheel (235) and a transmission belt (236) connecting the first wheel (234) and the second wheel (235); the motor (231) comprises a driving shaft (2311), the driving shaft (2311) passes through the first wheel (234), and the driving shaft (233) passes through the second wheel (235) and the driving wheel (232).

7. The surface light source according to claim 6, characterized in that: The driving shaft (2311) is provided with a first protrusion (2312), the driving shaft (233) is provided with a second protrusion (2331) and a third protrusion (2332), and the first wheel (234), the second wheel (235) and the driving wheel (232) are respectively provided with a first groove, a second groove and a third groove corresponding to the first protrusion (2312), the second protrusion (2331) and the third protrusion (2332).

8. The surface light source according to claim 1, characterized in that: The driving mechanism (23) is arranged on a side of the light bar (21) facing away from the panel (1).

9. The surface light source according to claim 8, characterized in that: The panel (1) comprises a reflection plate (11), a light guide plate (12) and a diffusion plate (13) which are arranged in sequence.

10. A refrigeration device, characterized in that: The invention comprises a box body formed with a refrigeration chamber and a surface light source arranged on the inner wall of the refrigeration chamber, wherein the surface light source is the surface light source according to any one of claims 1 to 9.

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