A refrigerator

Abstract

The present invention provides a refrigerator, comprising: a box body, a storage compartment is defined therein; a shelf, arranged in the storage compartment; a lifting device, used to adjust the height of the shelf; and a lighting lamp, arranged at the bottom of the shelf, used to adjust the brightness of light under the shelf. The present invention has the advantage of providing sufficient brightness of light under the shelf, so that users can clearly identify the placed items, thereby improving the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a refrigerator. Background Art

[0002] Refrigerators are usually equipped with lighting devices. The lighting devices in traditional refrigerators are generally incandescent lamps, which are installed on the top of the refrigerator storage compartment, and the bulbs are covered with lampshades. However, traditional lighting methods cannot achieve uniform lighting in the refrigerator, and the local light is too strong, which will cause irritation to the human eye. Existing high-end refrigerators generally use curved surface light sources to provide lighting inside the refrigerator, but in actual applications, it is found that if there are many items placed on the shelves, the lighting under the shelves will be poor and dim, which is not conducive to users identifying the items placed under the shelves, affecting the user experience, so there is still room for improvement. Summary of the invention

[0003] An object of the present invention is to avoid insufficient lighting of the area below the shelf due to too many items placed on the shelf.

[0004] A further object of the present invention is to reasonably adjust the light brightness under the shelf to improve the user experience.

[0005] In particular, the present invention provides a refrigerator comprising:

[0006] A box body, defining a storage compartment therein;

[0007] A shelf, arranged in the storage room;

[0008] A lifting device for adjusting the height of the shelf; and

[0009] The lighting lamp is arranged at the bottom of the shelf and is used to adjust the brightness of the light below the shelf.

[0010] Optionally, the lifting device comprises:

[0011] Two lead screws are arranged on both sides of the rack;

[0012] Two fixing seats, respectively threadedly connected to the lead screw, for fixing the shelf; and

[0013] Two motors, the output shafts of the two motors are respectively connected to the bottom ends of the two lead screws, and are used to drive the two lead screws to rotate synchronously, so that the two fixed seats drive the shelves to move up and down.

[0014] Optionally, a surface light source assembly is further provided in the storage compartment, comprising a first surface light source and a second surface light source, wherein the first surface light source covers at least a portion of the top wall of the storage compartment, and a gap is left between the second surface light source and the side wall of the storage compartment.

[0015] Optionally, the lighting lamp has a conductive plate positive electrode and a conductive plate negative electrode, the second surface light source has a positive terminal and a negative terminal, and the conductive plate positive electrode and the conductive plate negative electrode are electrically connected to the positive terminal and the negative terminal respectively.

[0016] Optionally, the positive electrode of the conductive plate and the negative electrode of the conductive plate are fixed to the top surfaces of the two fixing seats respectively.

[0017] Optionally, it also includes:

[0018] A first photosensor is configured to detect a first light brightness in an area above the shelf and output a first detection signal corresponding to the first light brightness;

[0019] A second photosensor is configured to detect a second light brightness in the area below the shelf and output a second detection signal corresponding to the second light brightness;

[0020] The controller is configured to obtain the first detection signal and the second detection signal, and adjust the brightness of the lighting lamp when it is determined that the brightness of the second light is less than the brightness of the first light.

[0021] Optionally, the first photosensor is disposed at the bottom of the first surface light source or on a side wall of a storage compartment adjacent to a lower area of ​​the first surface light source;

[0022] The second photosensor is arranged at the bottom of the shelf or on the bottom wall of the storage compartment.

[0023] Optionally, the second surface light source includes a plurality of point light sources arranged in a matrix, and the point light sources at different heights are independently controlled.

[0024] Optionally, a distance sensor is provided at the bottom of the rack, and the distance sensor is configured to detect the height of the rack and output a height signal corresponding to the height of the rack;

[0025] The controller is also configured to obtain a height signal and, when it is determined that the second light brightness is less than the first light brightness, adjust the brightness of each point light source under the shelf.

[0026] Optionally, each point light source is an LED lamp.

[0027] The refrigerator of the present invention has an additional lighting lamp at the bottom of the shelf, which is used to provide lighting for the area below the shelf. By automatically adjusting the light brightness of the lighting lamp, even if there are many items placed on the shelf or the shelf is raised to a high position, sufficient light brightness can be provided below the shelf, so that the user can clearly identify the placed items, thereby improving the user experience.

[0028] Furthermore, in the refrigerator of the present invention, when there are many items placed on the shelf, the brightness of the area below the shelf will become dim. After the controller obtains the first detection signal and the second detection signal and determines that the brightness of the second light is less than the brightness of the first light, it can reasonably control the brightness of the lighting lamp to increase, so that the user can clearly distinguish the items placed in the area below the shelf.

[0029] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0031] Figure 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;

[0032] Figure 2 is a schematic diagram of the positional relationship between the first surface light source, the second surface light source, the shelf and the lifting device when observing from the side of the storage room;

[0033] Figure 3 is a schematic diagram of the connection structure between the shelf and the fixing base according to an embodiment of the present invention;

[0034] Figure 4 is a schematic block diagram of a refrigerator according to an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0036] Figure 1 is a schematic diagram of the structure of a refrigerator 10 according to an embodiment of the present invention, referring to Figure 1 , and combined with Figures 2 to 4The refrigerator 10 may generally include a box body 100, and one or more storage compartments 110 are formed in the box body 100. The storage compartments 110 may be configured as refrigerated storage spaces, frozen storage spaces, variable temperature storage spaces, etc. according to the refrigeration temperature. Specifically, the number, function, and layout of the storage compartments may be configured according to requirements.

[0037] The storage room 110 is provided with a shelf 200 and a lifting device 300, wherein the shelf 200 is horizontally arranged for supporting articles. The lifting device 300 is connected to the shelf 200 and is used to adjust the height of the shelf 200 up and down, so as to eliminate the restriction on the height direction of the storage space, so that the shelf 200 can place articles of different heights, thereby improving the space utilization rate of the storage room 110.

[0038] In order to minimize the impact on the use of the storage space and facilitate user operation, the lifting device 300 in this embodiment is arranged on the back side of the storage compartment 110. Of course, in some cases, the lifting device 300 can also be arranged on the left or right side of the storage compartment 110. The specific setting position can be configured according to needs, and the present invention does not limit this.

[0039] As mentioned above, existing high-end refrigerators 10 generally use curved surface light sources to provide lighting for the storage compartment 110. However, when there are many items placed on the shelf 200, the light under the shelf 200 is relatively dim, and it is difficult for users to see the items placed in the middle, which affects the user experience.

[0040] To solve the above problem, the present embodiment adds a lighting lamp 400 at the bottom of the shelf 200, and uses the lighting lamp 400 to provide lighting for the area below the shelf 200. By automatically adjusting the light brightness of the lighting lamp 400, even if there are many items placed on the shelf 200, or the shelf 200 is raised to a higher position, sufficient light brightness can be provided for the bottom of the shelf 200, so that the user can clearly identify the placed items, thereby improving the user experience.

[0041] The lifting device 300 includes at least two lead screws 310, two fixed seats 320 and two motors 330. The two lead screws 310 are vertically arranged on both sides of the rack 200, and the two fixed seats 320 are respectively threadedly connected to the two lead screws 310. One end of the rack 200 adjacent to the back side of the storage compartment 110 is fixedly connected to the two fixed seats 320, and the connection method is not limited to welding, bolt connection, etc. The two motors 330 are vertically arranged below the two lead screws 310, and the output shafts of the motors 330 are fixedly connected to the bottom ends of the lead screws 310. In this way, when the two motors 330 rotate synchronously, the two fixed seats 320 can move up and down along the axial direction of the lead screws 310, thereby driving the stable lifting and lowering of the rack 200.

[0042] In some embodiments, in order to improve the connection strength between the shelf 200 and the fixed base 320, reinforcing ribs 321 may be further provided between the shelf 200 and the fixed base 320 to improve the load-bearing capacity of the shelf 200 and prevent the connection between the shelf 200 and the fixed base 320 from breaking due to too many items placed on the shelf 200.

[0043] Considering that when the rack 200 is raised to the top of the lead screw 310, if the rack 200 continues to rise, the fixing seat 320 will easily be separated from the lead screw 310, causing the rack 200 to fall. To solve this problem, in this embodiment, the top of each lead screw 310 is also fixedly connected to a limiting member 340, which is used to stop the fixing seat 320 when the fixing seat 320 rises to the top of the lead screw 310, so as to prevent the fixing seat 320 from being separated from the top of the lead screw 310.

[0044] The refrigerator 10 of this embodiment is further provided with a surface light source assembly in the storage compartment 110, and the surface light source assembly includes a first surface light source 510 and a second surface light source 520. The first surface light source 510 covers at least a portion of the top wall of the storage compartment 110, and a gap is left between the second surface light source 520 and the side wall of the storage compartment 110. That is, the first surface light source 510 is located above the shelf 200 and can provide light brightness for the upper part of the shelf 200, and the second surface light source 520 is located at the rear side of the shelf 200 and can provide light brightness for the upper and lower areas of the shelf 200 from the rear to the front, so that the user can clearly distinguish the items placed in the middle area of ​​the shelf 200 and the middle area of ​​the bottom wall of the storage compartment 110.

[0045] The illuminating lamp 400 has a conductive plate positive electrode 401 and a conductive plate negative electrode 402, and the second surface light source 520 has a positive terminal 521 and a negative terminal 522, and the conductive plate positive electrode 401 and the conductive plate negative electrode 402 are respectively electrically connected to the positive terminal 521 and the negative terminal 522. By connecting the conductive plate positive electrode 401 and the conductive plate negative electrode 402 of the illuminating lamp 400 to the positive terminal 521 and the negative terminal 522 of the second surface light source 520, respectively, the power supply for supplying power to the second surface light source 520 can also be used to supply power to the illuminating lamp 400.

[0046] In an optional embodiment, the positive electrode 401 of the conductive plate and the negative electrode 402 of the conductive plate are respectively fixed to the top surfaces of the two fixing seats 320. In the process of driving the shelf 200 to rise and fall by the two motors 330, since the positive electrode 401 of the conductive plate and the negative electrode 402 of the conductive plate are fixed on the two fixing seats 320, the positive electrode 401 of the conductive plate and the negative electrode 402 of the conductive plate can also rise and fall with the rise and fall of the shelf 200, so as to always be stably connected with the lighting lamp 400 at the bottom of the shelf 200.

[0047] Furthermore, considering that during the process of lifting the shelf 200, the wire 403 connecting the positive electrode 401 and the negative electrode 402 of the conductive plate and the positive terminal 521 and the negative terminal 522 will be pulled, and the wire 403 is directly exposed in the storage compartment 110 and is also easily damaged. Therefore, in order to alleviate this problem, in this embodiment, a drag chain can be set between the fixing base 320 and the second surface light source 520, and the wire 403 can be stored in the drag chain, and the use of the drag chain can play a certain protective role on the wire 403.

[0048] In a preferred embodiment, the refrigerator 10 may further include a first photosensitive sensor 610, a second photosensitive sensor 620, and a controller 700, wherein the first photosensitive sensor 610 is configured to detect the first light brightness of the area above the shelf 200, and output a first detection signal corresponding to the first light brightness. The second photosensitive sensor 620 is configured to detect the second light brightness of the area below the shelf 200, and output a second detection signal corresponding to the second light brightness. The controller 700 is configured to obtain the first detection signal and the second detection signal, and when it is determined that the second light brightness is less than the first light brightness, adjust the brightness of the lighting lamp 400.

[0049] In practical applications, the brightness of the first light of the first surface light source 510 can be pre-adjusted so that under the effect of the first light brightness, the user can clearly distinguish the items placed on the rack 200. When there are many items placed on the rack 200, the brightness of the area below the rack 200 becomes dim. The controller 700 can determine that the brightness of the second light is less than the brightness of the first light by acquiring the first detection signal output by the first photosensor 610 and the second detection signal output by the second photosensor 620, thereby increasing the lighting brightness of the illuminating lamp 400, so that the user can also clearly distinguish the items placed in the area below the rack 200.

[0050] In addition, the brightness of the first light is pre-adjusted by the controller 700, and the brightness of the first light does not need to be large, as long as the user can clearly distinguish the items placed in the area above the shelf 200. When adjusting the brightness of the second light, it is also adjusted according to the brightness of the first light. Therefore, the brightness of the second light will not be adjusted too large, that is, it can avoid the brightness of the light below the shelf 200 being too strong to stimulate the user's eyes, which is also beneficial to energy saving of the refrigerator 10.

[0051] In some embodiments, the first photosensor 610 can be set at the bottom of the first surface light source 510 or on the side wall of the storage compartment 110 adjacent to the lower area of ​​the first surface light source 510, and the second photosensor 620 can be set at the bottom of the shelf 200 or on the bottom wall of the storage compartment 110, to ensure that after the position and height of the shelf 200 are adjusted up and down, the first photosensor 610 still detects the light brightness of the area above the shelf 200, and the second photosensor 620 still detects the light brightness of the area below the shelf 200.

[0052] In this embodiment, the second surface light source 520 includes a plurality of point light sources arranged in a matrix, and the point light sources at different heights are independently controlled. In this way, when the position of the shelf 200 is high, the illuminating lamp 400 is higher from the bottom wall of the storage compartment 110. In order to make the light brightness of the area below the shelf 200 meet the requirements, the light brightness of the point light sources in the second surface light source 520 below the shelf 200 can be selectively enhanced, thereby sharing the lighting burden for the illuminating lamp 400, avoiding adjusting the illuminating lamp 400 too bright to shorten the service life of the illuminating lamp 400, or causing the illuminating lamp 400 to be damaged by overheating.

[0053] Furthermore, a distance sensor 630 is provided at the bottom of the rack 200, and the distance sensor 630 is configured to detect the height of the rack 200 and output a height signal corresponding to the height of the rack; the controller 700 is further configured to obtain the height signal, and when it is determined that the brightness of the second light is less than the brightness of the first light, adjust the brightness of each point light source below the rack 200. In this way, the controller 700 can determine the height of the rack 200 by obtaining the height signal, and can adjust the brightness of the point light source of the second surface light source 520 located below the height of the rack according to the height of the rack, so that the brightness of the second light in the area below the rack 200 can meet the needs of the user.

[0054] Preferably, each point light source is an LED lamp. LED lamps are green and environmentally friendly, do not contain mercury elements, can be safely touched, and have low glare and no radiation, and are suitable for use in the refrigerator 10.

[0055] According to any one of the above optional embodiments or a combination of multiple optional embodiments, the embodiments of the present invention can achieve the following beneficial effects:

[0056] The refrigerator 10 of the present invention has an additional lighting lamp 400 at the bottom of the shelf 200, and uses the lighting lamp 400 to provide lighting for the area below the shelf 200. By automatically adjusting the light brightness of the lighting lamp 400, even if there are many items placed on the shelf 200, or the shelf 200 is raised to a higher position, sufficient light brightness can be provided below the shelf 200, so that the user can clearly identify the placed items, thereby improving the user's usage experience.

[0057] Furthermore, in the refrigerator 10 of the present invention, when there are many items placed on the shelf 200, the brightness of the area below the shelf 200 will become dim. After the controller 700 obtains the first detection signal and the second detection signal and determines that the brightness of the second light is less than the brightness of the first light, it can reasonably control the brightness of the lighting lamp 400 to increase, so that the user can clearly distinguish the items placed in the area below the shelf 200.

[0058] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A refrigerator, include: A box body, defining a storage compartment therein; A shelf, arranged in the storage room; A lifting device, used to adjust the height of the shelf; An illuminating lamp, arranged at the bottom of the shelf, for adjusting the brightness of light below the shelf; A surface light source assembly is arranged in the storage compartment, comprising a first surface light source and a second surface light source, wherein the first surface light source covers at least a portion of the top wall of the storage compartment, and a gap is left between the second surface light source and the side wall of the storage compartment; A first photosensor configured to detect a first light brightness in an area above the shelf and output a first detection signal corresponding to the first light brightness; a second photosensor configured to detect a second light brightness in the area below the shelf and output a second detection signal corresponding to the second light brightness; as well as a controller configured to obtain the first detection signal and the second detection signal, and adjust the brightness of the lighting lamp when determining that the brightness of the second light is less than the brightness of the first light; Wherein, the second surface light source includes a plurality of point light sources arranged in a matrix, and the point light sources at different heights are independently controlled.

2. The refrigerator according to claim 1, in, The lifting device comprises: Two lead screws are arranged on both sides of the shelf; two fixing seats, respectively threadedly connected to the lead screw, for fixing the shelf; and Two motors, the output shafts of the two motors are respectively connected to the bottom ends of the two lead screws, and are used to drive the two lead screws to rotate synchronously, so that the two fixed seats drive the shelves to move up and down.

3. The refrigerator according to claim 2, in, The lighting lamp has a conductive plate positive electrode and a conductive plate negative electrode, the second surface light source has a positive terminal and a negative terminal, and the conductive plate positive electrode and the conductive plate negative electrode are electrically connected to the positive terminal and the negative terminal respectively.

4. The refrigerator according to claim 3, in, The positive electrode of the conductive plate and the negative electrode of the conductive plate are respectively fixed to the top surfaces of the two fixing seats.

5. The refrigerator according to claim 1, in, The first photosensor is disposed at the bottom of the first surface light source or on the side wall of the storage compartment adjacent to the lower area of ​​the first surface light source; The second photosensor is arranged at the bottom of the shelf or on the bottom wall of the storage compartment.

6. The refrigerator according to claim 1, in, A distance sensor is provided at the bottom of the rack, and the distance sensor is configured to detect the position height of the rack and output a height signal corresponding to the position height; The controller is further configured to obtain the height signal, and when it is determined that the second light brightness is less than the first light brightness, adjust the brightness of each of the point light sources under the rack.

7. The refrigerator according to claim 1, in, Each of the point light sources is an LED lamp.

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