Air duct cover plate for refrigeration equipment and refrigeration equipment

Abstract

The invention relates to the technical field of household appliances, and discloses an air duct assembly for refrigeration equipment and the refrigeration equipment. The refrigeration equipment comprises a first area light source or a second area light source, the first area light source comprises a top area light source and a back light source, the second area light source comprises a back light source, the first area light source is provided with a first connecting part, and the second area light source is provided with a second connecting part; the air duct cover plate is provided with a connection matching part, and the connection matching part can be matched with the first connecting part so that the first area light source can be arranged on the air duct cover plate, or the connection matching part can be matched with the second connecting part so that the second area light source can be arranged on the air duct cover plate. The first area light source and the second area light source are different in structure type, and the air duct cover plate is connected with the first area light source or the second area light source by arranging the connection matching part on the air duct cover plate, so that the air duct cover plate can carry the area light sources of different structure types.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and particularly relates to an air duct cover plate for a refrigeration device and a refrigeration device. Background Art

[0002] At present, the product upgrade of refrigeration devices is getting faster and faster. Configuring surface light sources to replace traditional light-emitting diodes (LEDs) has also become common. However, how to cleverly install the surface light source in the refrigeration device has also become a difficulty.

[0003] In related technologies, a slot for inserting a surface light source is provided at the air duct cover plate of the refrigeration device, and the surface light source is inserted into the slot so that the surface light source is fixedly connected to the air duct cover plate.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in related technologies:

[0005] The surface light source includes various types, including an L-shaped surface light source including a top surface light source and a rear surface light source, and a straight surface light source with only a rear surface light source. Among them, the L-shaped surface light source includes two types: one with an integrated rear surface light source and top surface light source, and the other with a split top surface light source and rear surface light source.

[0006] In related technologies, the surface light source is inserted into the slot provided in the air duct cover plate, and only one structural type of surface light source can be adapted to be fixed to the air duct cover plate, and this air duct cover plate cannot carry other structural types of surface light sources.

[0007] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0008] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preamble to the subsequent detailed description.

[0009] The embodiments of the present disclosure provide an air duct cover plate for a refrigeration device and a refrigeration device, enabling the air duct cover plate to carry various structural types of surface light sources.

[0010] According to the first aspect of the embodiments of the present disclosure, there is provided an air duct cover plate for a refrigeration device. The refrigeration device includes a first surface light source or a second surface light source. The first surface light source includes a top surface light source and a rear surface light source, and the second surface light source includes a rear surface light source and does not include a top surface light source. The first surface light source is provided with a first connection portion, and the second surface light source is provided with a second connection portion; the air duct cover plate is provided with a connection and cooperation portion, and the connection and cooperation portion can cooperate with the first connection portion to enable the first surface light source to be disposed on the air duct cover plate, or cooperate with the second connection portion to enable the second surface light source to be disposed on the air duct cover plate.

[0011] According to the second aspect of the embodiments of the present disclosure, there is provided a refrigeration device, including the air duct cover plate for a refrigeration device, a first surface light source or a second surface light source as described in the above embodiments, and the first surface light source or the second surface light source is disposed on the air duct cover plate.

[0012] Optionally, the first surface light source or the second surface light source includes: a connection plate, which is disposed on the side wall of the rear surface light source and on the side of the rear surface light source facing the air duct cover plate. The first connection portion or the second connection portion includes a first sub-connection portion disposed on the connection plate, and the connection and cooperation portion includes a first sub-connection and cooperation portion disposed on the side wall of the air duct cover plate. The first sub-connection portion and the first sub-connection and cooperation portion cooperate to enable the rear surface light source to be disposed on the air duct cover plate.

[0013] Optionally, the first sub-connection portion includes a first screw hole disposed on the connection plate, and the first sub-connection and cooperation portion includes a second screw hole disposed on the air duct cover plate. A screw passes through the first screw hole and the second screw hole to realize the connection between the first surface light source and the air duct cover plate or the connection between the second surface light source and the air duct cover plate.

[0014] Optionally, the inner diameter of the first screw hole and / or the second screw hole is greater than the outer diameter of the screw.

[0015] Optionally, the first surface light source or the second surface light source includes: a first frame, which is connected to the top of the rear surface light source. The first connection portion or the second connection portion includes a second sub-connection portion disposed on the first frame, and the connection and cooperation portion includes a second sub-connection and cooperation portion disposed on the top of the air duct cover plate. The second sub-connection portion and the second sub-connection and cooperation portion cooperate to enable the rear surface light source to be disposed on the air duct cover plate.

[0016] Optionally, the first frame includes: a clamping portion, which is connected to the top of the rear surface light source; a lapping plate, which is connected to the clamping portion and laps on the upper surface of the air duct cover plate. The second sub-connection portion is disposed on the lapping plate, and the second sub-connection and cooperation portion is disposed on the upper surface of the air duct cover plate.

[0017] Optionally, the first surface light source further includes: a second frame, which is connected between the top surface light source and the first frame.

[0018] Optionally, the second frame is detachably connected to the first frame.

[0019] Optionally, the first connecting part or the second connecting part includes a third sub-connecting part provided at the bottom of the rear backlight source, and the connecting and mating part includes a third sub-connecting and mating part provided at the bottom of the air duct cover plate. The third sub-connecting part is matched with the third sub-connecting part to enable the rear backlight source to be arranged on the air duct cover plate.

[0020] The air duct cover plate and the refrigeration device for the refrigeration device provided by the embodiments of the present disclosure can achieve the following technical effects:

[0021] The refrigeration device includes a first surface light source or a second surface light source. The first surface light source includes a top surface light source and a rear backlight source. The second surface light source includes a rear backlight source and does not include a top surface light source. The first surface light source is provided with a first connecting part, and the second surface light source is provided with a second connecting part; the air duct cover plate is provided with a connecting and mating part, and the connecting and mating part can be matched with the first connecting part to enable the first surface light source to be arranged on the air duct cover plate, or be matched with the second connecting part to enable the second surface light source to be arranged on the air duct cover plate. The first surface light source and the second surface light source are surface light sources of different structural types. By providing a connecting and mating part on the air duct cover plate, the first connecting part provided on the first surface light source is matched with the connecting and mating part to enable the air duct cover plate to be connected to the first surface light source, and the second connecting part provided on the second surface light source is matched with the connecting and mating part to enable the air duct cover plate to be connected to the second surface light source, so that the air duct cover plate can carry surface light sources of different structural types.

[0022] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. Description of the Drawings

[0023] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and among them:

[0024] Figure 1 is a schematic structural diagram of an air duct cover plate for a refrigeration device provided by an embodiment of the present disclosure, wherein the air duct cover plate is connected to the first surface light source;

[0025] Figure 2 is a schematic structural diagram of a first surface light source provided by an embodiment of the present disclosure;

[0026] Figure 3 is a schematic structural diagram of a second surface light source provided by an embodiment of the present disclosure;

[0027] Figure 4 is a schematic structural diagram of an air duct cover plate provided by an embodiment of the present disclosure;

[0028] Figure 5 is Figure 2Partial enlarged schematic view at position A in

[0029] Figure 6 It is a schematic structural diagram of another first surface light source provided by an embodiment of the present disclosure;

[0030] Figure 7 is Figure 6 Partial enlarged schematic view at position B in

[0031] Reference numerals:

[0032] 10: First surface light source; 11: Top surface light source; 12: Rear surface light source; 13: Connection plate; 131: First connection plate; 132: Second connection plate; 133: First connection portion; 1331: First sub-connection portion; 1331a: First screw hole; 14: First frame; 141: Clamping portion; 142: Lapping plate; 143: Second sub-connection portion; 1431: Third screw hole; 144: Groove; 15: Second frame; 151: Clamping member; 152: First connecting member; 153: Second connecting member; 16: Third sub-connection portion; 161: Decorative strip;

[0033] 20: Second surface light source; 21: Second connection portion;

[0034] 30: Air duct cover plate; 31: Connection and mating portion; 311: First sub-connection and mating portion; 3111: Second screw hole; 312: Second sub-connection and mating portion; 3121: Fourth screw hole; 313: Third sub-connection and mating portion; 3131: Claw. Detailed implementation manners

[0035] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are only for reference and explanation purposes and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, sufficient understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner.

[0036] The terms "first", "second", etc. in the description and claims of the embodiments of the present disclosure and the above-mentioned accompanying drawings are used to distinguish similar objects and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0037] In the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] In addition, the terms "arrangement", "connection", and "fixation" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0039] Unless otherwise specified, the term "plurality" means two or more.

[0040] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0041] The term "and / or" is a description of the associated relationship of an object, indicating that there can be three relationships. For example, A and / or B means: A or B, or, A and B these three relationships.

[0042] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0043] Currently, the product upgrade of refrigeration equipment is getting faster and faster. In refrigeration equipment such as refrigerators, a surface light source is usually configured to replace the traditional light-emitting diode (LED), hereinafter simply referred to as LED. A surface light source refers to a light-emitting mode. Compared with the LED point light source and the ordinary lamp light source, existing surface light sources such as flat light sources have the characteristics of soft light emission, eye protection, power saving, and natural light. However, how to skillfully install the surface light source in the refrigeration equipment has also become a difficulty.

[0044] In the related art, a slot for inserting a surface light source is opened at the air duct cover of the refrigeration equipment, and the surface light source is inserted into the slot so that the surface light source is fixedly connected to the air duct cover.

[0045] The surface light source includes multiple structural types, among which there is an L-shaped surface light source including a top surface light source and a rear surface light source, and a straight surface light source with only a rear surface light source. Among them, the L-shaped surface light source includes two structural types: one is an integrated type of the rear surface light source and the top surface light source, and the other is a split type of the top surface light source and the rear surface light source. In the prior art, the surface light source is inserted into a card slot provided on the air duct cover plate, and only one structural type of the surface light source can be fixed to the air duct cover plate, and the air duct cover plate cannot carry other structural types of surface light sources.

[0046] Combined with Figures 1-7 As shown, the embodiments of the present disclosure provide an air duct cover plate for a refrigeration device and a refrigeration device to enable the air duct cover plate 30 to carry surface light sources of different structural types, improving the adaptability of the air duct cover plate 30.

[0047] According to the first aspect of the embodiments of the present disclosure, combined with Figures 1 to 4 As shown, there is provided an air duct cover plate 30 for a refrigeration device. The refrigeration device includes a first surface light source 10 or a second surface light source 20. The first surface light source 10 includes a top surface light source 11 and a rear surface light source 12. The second surface light source 20 includes a rear surface light source 12 and does not include a top surface light source 11. The first surface light source 10 is provided with a first connection portion 133, and the second surface light source 20 is provided with a second connection portion 21. The air duct cover plate 30 is provided with a connection and cooperation portion 31, and the connection and cooperation portion 31 can cooperate with the first connection portion 133 to enable the first surface light source 10 to be disposed on the air duct cover plate 30, or cooperate with the second connection portion 21 to enable the second surface light source 20 to be disposed on the air duct cover plate 30.

[0048] The first surface light source 10 includes a top surface light source 11 and a rear surface light source 12. Among them, the first surface light source 10 includes an integrated L-shaped surface light source in which the top surface light source 11 and the rear surface light source 12 are integrated, as Figure 1 shown, and a split L-shaped surface light source in which the top surface light source 11 and the rear surface light source 12 are split, as Figure 2 shown. The second surface light source 20 is a straight surface light source with only a rear surface light source 12, as Figure 3 shown.

[0049] Using the air duct cover 30 for a refrigeration device provided by the embodiments of the present disclosure, by providing a connection and cooperation part 31 on the air duct cover 30, and the first surface light source 10 is provided with a first connection part 133. When the first connection part 133 cooperates with the connection and cooperation part 31, the air duct cover 30 can carry an integrated L-shaped surface light source and a split L-shaped surface light source; the second surface light source 20 is provided with a second connection part 21. When the second connection part 21 cooperates with the connection and cooperation part 31, the air duct cover 30 can carry a straight surface light source including only the rear backlight source 12. Thus, without the need to replace or change the structure of the air duct cover 30, the air duct cover 30 can carry surface light sources of different structural types, improving the adaptability of the air duct cover 30. Among them, Figure 1 For the air duct cover 30 to carry an integrated L-shaped surface light source. The air duct cover 30 carrying a split L-shaped surface light source or carrying a straight surface light source is not shown in the figure.

[0050] The L-shaped surface light source is installed in the refrigeration chamber of the refrigeration device and covers the top and back of the inner container, so that there are no dead corners in the internal lighting of the refrigeration device, and there are no deviations in the light-emitting angle and illuminance, and the overall lighting effect is good. The split L-shaped surface light source can timely remove the surface light source on the faulty side when the top surface light source 11 or the rear backlight source 12 fails, and does not affect the normal lighting of the refrigeration device. The straight surface light source reduces power consumption and saves energy while ensuring lighting.

[0051] By adopting the embodiments of the present disclosure, users can carry any one of the above structural types of surface light sources on the air duct cover 30 according to their needs, improving the user experience.

[0052] According to the second aspect of the embodiments of the present disclosure, a refrigeration device is provided, including the air duct cover 30 for a refrigeration device, the first surface light source 10 or the second surface light source 20 as described in the above embodiments; the first surface light source 10 or the second surface light source 20 is provided on the air duct cover 30.

[0053] Optionally, as shown in Figure 1 The first surface light source 10 or the second surface light source 20 includes a connection plate 13. The connection plate 13 is provided on the side wall of the rear backlight source 12 and on the side of the rear backlight source 12 facing the air duct cover 30. The first connection part 133 or the second connection part 21 includes a first sub-connection part 1331 provided on the connection plate 13. The connection and cooperation part 31 includes a first sub-connection and cooperation part 311 provided on the side wall of the air duct cover 30. The first sub-connection part 1331 and the first sub-connection and cooperation part 311 cooperate to enable the rear backlight source 12 to be provided on the air duct cover 30.

[0054] The connecting plates 13 are arranged on two opposite sides of the rear backlight source 12 and on the side facing the air duct cover plate 30. The connecting plate 13 is provided with a first sub-connecting portion 1331. The air duct cover plate 30 includes two opposite side walls. The first sub-connecting and mating portion 311 is arranged on the side wall of the air duct cover plate 30 and is correspondingly arranged with the first sub-connecting portion 1331. The first sub-connecting portion 1331 cooperates with the first sub-connecting and mating portion 311 to connect the rear backlight source 12 with the air duct cover plate 30.

[0055] Among them, whether it is an integrated L-shaped surface light source, a split L-shaped surface light source, or a straight surface light source, they all include the rear backlight source 12. By the cooperation of the first sub-connecting portion 1331 and the first sub-connecting and mating portion 311, the rear backlight source 12 is connected with the air duct cover plate 30, so that the integrated L-shaped surface light source, the split L-shaped surface light source or the straight surface light source is connected with the air duct cover plate 30.

[0056] Optionally, one of the first sub-connecting portion 1331 and the first sub-connecting and mating portion 311 includes a buckle, and the other includes a slot, and the buckle is clamped in the slot to make the first sub-connecting portion 1331 cooperate with the first sub-connecting and mating portion 311.

[0057] Optionally, the first sub-connecting portion 1331 includes a first screw hole 1331a arranged on the connecting plate 13, and the first sub-connecting and mating portion 311 includes a second screw hole 3111 arranged on the air duct cover plate 30. A screw passes through the first screw hole 1331a and the second screw hole 3111 to connect the first surface light source 10 with the air duct cover plate 30 or to connect the second surface light source 20 with the air duct cover plate 30.

[0058] By screw connection, the connecting plate 13 is fixed to the side wall of the air duct cover plate 30 to connect the first surface light source 10 with the air duct cover plate 30 or to connect the second surface light source 20 with the air duct cover plate 30, which simplifies the connection method, and the screw connection improves the connection stability.

[0059] Optionally, the inner diameter of the first screw hole 1331a and / or the second screw hole 3111 is greater than the outer diameter of the screw.

[0060] Optionally, the number of the first screw holes 1331a is multiple, and the multiple first screw holes 1331a are arranged in sequence along the extending direction of the connecting plate 13. The number of the second screw holes 3111 is multiple, and the multiple second screw holes 3111 are arranged in sequence along the width direction of the air duct cover plate 30. Each first screw hole 1331a corresponds to each second screw hole 3111 one by one.

[0061] Optionally, among the multiple first screw holes 1331a, the inner diameters of at least some of the first screw holes 1331a are larger than the outer diameter of the screw. Exemplarily, the inner diameter of the first screw hole 1331a near the end of the connecting plate 13 is increased to be larger than the outer diameter of the screw, and the inner diameter of the corresponding second screw hole 3111 is also larger than the outer diameter of the screw.

[0062] In this way, when installing the connecting plate 13 and the air duct cover plate 30 using screws, for different connection situations, the adjustment space for screw connection is increased.

[0063] Optionally, the connecting plate 13 extends along the width direction of the rear backlight source 12. The length of the connecting plate 13 should be not less than half of the width of the rear backlight source 12, so as to arrange multiple first screw holes 1331a at intervals on the connecting plate 13 to ensure the connection strength between the connecting plate 13 and the air duct cover plate 30.

[0064] Optionally, as shown in Figure 2 the connecting plate 13 includes a first connecting plate 131 and a second connecting plate 132, and there is a gap between the first connecting plate 131 and the second connecting plate 132. By setting the gap, the gap corresponds to the air outlet of the air duct cover plate 30 to prevent the connecting plate 13 from blocking the air outlet.

[0065] Optionally, as shown in Figure 2 , Figure 4 and Figure 5 the first surface light source 10 or the second surface light source 20 includes a first frame 14. The first frame 14 is connected to the top of the rear backlight source 12. The first connecting portion 133 or the second connecting portion 21 includes a second sub-connecting portion 143 provided on the first frame 14. The connecting and mating portion 31 includes a second sub-connecting and mating portion 312 provided on the top of the air duct cover plate 30. The second sub-connecting portion 143 and the second sub-connecting and mating portion 312 are mated to fix the rear backlight source 12 to the air duct cover plate 30. Thus, the split L-shaped surface light source or the straight surface light source is fixedly connected to the air duct cover plate 30.

[0066] Optionally, the first frame 14 includes a clamping portion 141 and a lapping plate 142. The clamping portion 141 is connected to the top of the rear backlight source 12. The lapping plate 142 is connected to the clamping portion 141 and laps on the upper surface of the air duct cover plate 30. The second sub-connecting portion 143 is provided on the lapping plate 142, and the second sub-connecting and mating portion 312 is provided on the upper surface of the air duct cover plate 30.

[0067] Optionally, the second sub-connection part 143 includes a third screw hole 1431 provided on the overlapping plate 142, and the second sub-connection fitting part 312 includes a fourth screw hole 3121 provided on the upper surface of the air duct cover plate 30. Screws pass through the third screw hole 1431 and the fourth screw hole 3121 to realize the connection between the first surface light source 10 and the air duct cover plate 30 or to realize the connection between the second surface light source 20 and the air duct cover plate 30. It mainly realizes the fixed connection between the split L-shaped surface light source or the straight surface light source and the air duct cover plate 30.

[0068] Optionally, the number of the third screw holes 1431 is multiple, and the multiple third screw holes 1431 are arranged in sequence along the extension direction of the overlapping plate 142. The number of the fourth screw holes 3121 is multiple, and the multiple fourth screw holes 3121 are arranged at intervals in sequence along the upper surface of the air duct cover plate 30. Each third screw hole 1431 corresponds to each fourth screw hole 3121 one by one.

[0069] Optionally, as Figures 5-7 shown, the first surface light source 10 further includes a second frame 15, and the second frame 15 is connected between the top surface light source 11 and the first frame 14.

[0070] Optionally, the second frame 15 is detachably connected to the first frame 14.

[0071] Optionally, the second frame 15 includes a clamping part 151 and a first connecting part 152. The clamping part 151 is connected to the side part of the top surface light source 11, and the first connecting part 152 is connected to the first frame 14, so that the top surface light source 11 of the split L-shaped surface light source is connected to the rear surface light source 12.

[0072] The first frame 14 further includes a groove 144, which is provided above the clamping part 141 and extends along the length of the first frame 14. The first connecting part 152 includes a buckle, and at least part of the buckle is clamped in the groove 144 and can move along the extension direction of the groove 144. When the buckle moves out of the groove 144, the first frame 14 is disconnected from the second frame 15.

[0073] Optionally, the first surface light source 10 further includes a second connecting part 153. One end of the second connecting part 153 is fixedly connected to the second frame 15, and the other end of the second connecting part 153 is fixedly connected to the side wall of the top surface light source 11 to further strengthen the fixation of the top surface light source 11.

[0074] By detachably connecting the first frame 14 and the second frame 15, when the air duct cover plate 30 carries a straight surface light source, the second frame 15 is disassembled; when carrying a split L-shaped surface light source, the second frame 15 is connected to the first frame 14, so that the top surface light source 11 is connected to the rear surface light source 12. Thus, it is convenient for the air duct cover plate 30 to carry surface light sources of different structural types.

[0075] Optionally, in combination with Figure 1 As shown, the first connecting portion 133 or the second connecting portion 21 includes a third sub-connecting portion 16 provided at the bottom of the rear backlight 12, and the connecting and mating portion 31 includes a third sub-connecting and mating portion 313 provided at the bottom of the air duct cover 30. The third sub-connecting portion 16 is mated with the third sub-connecting and mating portion 313 to dispose the rear backlight 12 on the air duct cover 30.

[0076] The third sub-connecting portion 16 includes a decorative strip 161 located at the bottom of the rear backlight 12, and the decorative strip 161 is clamped to the bottom of the rear backlight 12. The third sub-connecting and mating portion 313 includes a claw 3131. One end of the claw 3131 is connected to the bottom of the air duct cover 30, and the other end of the claw 3131 forms a clamping groove with the air duct cover 30. The decorative strip 161 is clamped in the clamping groove to restrict the downward movement of the rear backlight 12.

[0077] The air duct cover 30 and the refrigeration device for the refrigeration device provided by the embodiments of the present disclosure can achieve the following technical effects:

[0078] The refrigeration device includes a first surface light source 10 or a second surface light source 20. The first surface light source 10 includes a top surface light source 11 and a rear backlight 12. The second surface light source 20 includes the rear backlight 12 and does not include the top surface light source 11. The first surface light source 10 is provided with a first connecting portion 133, and the second surface light source 20 is provided with a second connecting portion 21. The air duct cover 30 is provided with a connecting and mating portion 31. The connecting and mating portion 31 can be mated with the first connecting portion 133 to dispose the first surface light source 10 on the air duct cover 30, or be mated with the second connecting portion 21 to dispose the second surface light source 20 on the air duct cover 30. The first surface light source 10 and the second surface light source 20 are surface light sources of different structural types. By providing the connecting and mating portion 31 on the air duct cover 30, the first connecting portion 133 provided on the first surface light source 10 is mated with the connecting and mating portion 31 to connect the air duct cover 30 with the first surface light source 10, and the second connecting portion 21 provided on the second surface light source 20 is mated with the connecting and mating portion 31 to connect the air duct cover 30 with the second surface light source 20, so that the air duct cover 30 can carry surface light sources of different structural types.

[0079] The foregoing description and drawings sufficiently illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural as well as other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for portions and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An air duct cover plate for a refrigeration device, characterized in that, The refrigeration device includes a first surface light source or a second surface light source. The first surface light source includes a top surface light source and a rear back surface light source. The second surface light source includes a rear back surface light source and does not include a top surface light source. The first surface light source is provided with a first connecting portion, and the second surface light source is provided with a second connecting portion; The air duct cover plate is provided with a connecting and mating portion, which can be mated with the first connecting portion to enable the first surface light source to be arranged on the air duct cover plate, or mated with the second connecting portion to enable the second surface light source to be arranged on the air duct cover plate.

2. A refrigeration device, characterized in that, Comprising: The air duct cover plate for a refrigeration device according to claim 1; A first surface light source or a second surface light source, arranged on the air duct cover plate.

3. The refrigeration device according to claim 2, wherein, The first surface light source or the second surface light source includes: A connecting plate, arranged on the side wall of the rear back surface light source and on the side of the rear back surface light source facing the air duct cover plate. The first connecting portion or the second connecting portion includes a first sub-connecting portion arranged on the connecting plate. The connecting and mating portion includes a first sub-connecting and mating portion arranged on the side wall of the air duct cover plate. The first sub-connecting portion and the first sub-connecting and mating portion are mated to enable the rear back surface light source to be arranged on the air duct cover plate.

4. The refrigeration device according to claim 3, characterized in that, The first sub-connecting portion includes a first screw hole arranged on the connecting plate. The first sub-connecting and mating portion includes a second screw hole arranged on the air duct cover plate. A screw passes through the first screw hole and the second screw hole to realize the connection between the first surface light source and the air duct cover plate or to realize the connection between the second surface light source and the air duct cover plate.

5. The refrigeration device according to claim 4, characterized in that The inner diameter of the first screw hole and / or the second screw hole is greater than the outer diameter of the screw.

6. The refrigeration device according to claim 2, wherein The first surface light source or the second surface light source includes: A first frame, connected to the top of the rear back surface light source. The first connecting portion or the second connecting portion includes a second sub-connecting portion arranged on the first frame. The connecting and mating portion includes a second sub-connecting and mating portion arranged on the top of the air duct cover plate. The second sub-connecting portion and the second sub-connecting and mating portion are mated to enable the rear back surface light source to be arranged on the air duct cover plate.

7. The refrigeration device according to claim 6, characterized in that The first frame includes: A clamping portion, connected to the top of the rear back surface light source; A lapping plate, connected to the clamping portion and lapping on the upper surface of the air duct cover plate. The second sub-connecting portion is arranged on the lapping plate, and the second sub-connecting and mating portion is arranged on the upper surface of the air duct cover plate.

8. The refrigeration device according to claim 6, characterized in that, The first surface light source further includes: A second frame, connected between the top surface light source and the first frame.

9. The refrigeration device according to claim 8, characterized in that The second frame is detachably connected to the first frame.

10. The refrigeration device according to any one of claims 2 to 9, characterized in that The first connecting portion or the second connecting portion includes a third sub-connecting portion arranged at the bottom of the rear back surface light source. The connecting and mating portion includes a third sub-connecting and mating portion arranged at the bottom of the air duct cover plate. The third sub-connecting portion is mated with the third sub-connecting portion to enable the rear back surface light source to be arranged on the air duct cover plate.

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