Lighting module for a refrigeration appliance and refrigeration appliance

Abstract

An embodiment of the present invention relates to an illumination module for a refrigeration appliance and a refrigeration appliance. The illumination module includes a housing (2) having a light outlet (221), the housing including a support edge (222) surrounding the light outlet and an inner frame (223) disposed along the support edge, the inner frame protruding from the support edge in a direction away from the light outlet. A light source (3) is provided in the housing, the light source including a light-emitting element (31) and a substrate (32) carrying the light-emitting element. A light guide plate is supported on the support edge and includes a first end face (41) facing the inner frame. The housing includes a mounting portion (224) located between the first end face of the light guide plate, the support edge and the inner frame. The substrate is mounted on the mounting portion so that the light-emitting element and the first end face of the light guide plate are disposed face to face.

Description

Technical Field

[0001] The embodiments of the present invention relate to an illumination module for a refrigeration appliance and a refrigeration appliance. Background Art

[0002] The refrigeration appliance is provided with an illumination module for illuminating a storage compartment. In some prior arts, the light emitted by a light source in the illumination module is distributed in a light guide element to form a surface light source illumination module with a more uniform light distribution. In some prior arts, components including a light source, a light guide element, and a diffusion plate are fixedly assembled together by glue in a non-detachable manner. Summary of the Invention

[0003] An object of the embodiments of the present invention is to provide an improved illumination module for a refrigeration appliance and a refrigeration appliance having such an illumination module.

[0004] Another object of the embodiments of the present invention is to provide an illumination module for a refrigeration appliance that is conducive to improving the stability of illumination quality and a refrigeration appliance having such an illumination module.

[0005] On the one hand, the embodiments of the present invention relate to an illumination module for a refrigeration appliance, including: a housing including a light exit opening, the housing including a support edge surrounding the light exit opening and an inner frame surrounding the support edge, the inner frame protruding from the support edge in a direction away from the light exit opening; a light source located in the housing, the light source including a light-emitting element and a substrate carrying the light-emitting element; a light guide plate supported by the support edge and including a first end face facing the inner frame; the housing including a mounting portion located between the first end face of the light guide plate, the support edge, and the inner frame; the substrate being mounted on the mounting portion so that the light-emitting element and the first end face of the light guide plate are disposed face to face.

[0006] By mounting the substrate on the mounting portion located between the support edge, the inner frame, and the first end face, the substrate can be reliably fixed to the housing, and the light-emitting element can accurately inject light into the light guide plate. Thus, it can be expected that the stability of illumination quality can be improved without means such as potting. It can be expected that components such as the light source and the light guide plate are detachably assembled to the housing.

[0007] In some possible embodiments, the mounting portion includes a slot for positioning the substrate, and a part of the inner surface of the slot is formed by the inner frame and / or the support edge. This further improves the stability of the substrate in the housing.

[0008] In some possible embodiments, the housing includes a rib protruding from the support edge to limit the substrate, and the first end face of the light guide plate contacts the rib. This is not only conducive to improving the stability of the substrate, but also conducive to improving the reliability of light entering the light guide plate from the light-emitting element.

[0009] In some possible embodiments, the housing includes a frame and a cover. The frame includes the light outlet, a support edge, and an inner frame, and the cover is connected to the frame. In this way, the light source and the light guide plate are reliably and stably accommodated in the housing.

[0010] In some possible embodiments, a snap connection structure is provided between the cover and the inner frame, and the substrate has an avoidance groove corresponding to the snap connection structure.

[0011] In some possible embodiments, the cover includes an inner surface facing the light outlet and a limiting portion protruding from the inner surface in the direction of the light outlet, and the substrate is sandwiched between the limiting portion and the inner frame. Since the cover is also provided with a limiting structure for the substrate, it is beneficial to improve the stability of the substrate and at the same time beneficial to improve the convenience of installation / dismantling of the substrate.

[0012] In some possible embodiments, there are a plurality of snap connection structures between the cover and the inner frame. In a direction perpendicular to the substrate, the snap connection structure includes a hook located on the cover, and the distances between the limiting portion and the substrate and between the hook and the substrate in the direction perpendicular to the substrate are greater than the distance between the hook and the substrate in the direction perpendicular to the substrate.

[0013] In some possible embodiments, the lighting module includes an elastic member, and the elastic member is squeezed between the second end surface of the light guide plate and the inner frame to apply a force towards the light source to the light guide plate, where the second end surface is opposite to the first end surface.

[0014] Another aspect of the embodiments of the present invention relates to a refrigeration appliance, which is characterized by including a storage chamber and the lighting module according to any one of the above claims.

[0015] Another aspect of the embodiments of the present invention relates to a lighting module for a refrigeration appliance and a refrigeration appliance. The lighting module includes: a housing having a light outlet; a light source located in the housing; a light guide plate adapted to guide light from the light source to the light outlet; and an elastic member adapted to deform to maintain the position of the light guide plate relative to the light source and / or the light outlet.

[0016] Another aspect of the embodiments of the present invention relates to a refrigeration appliance. The refrigeration appliance includes a storage chamber having a front opening, the storage chamber including a top wall and a mounting groove located on the top wall; a lighting module fixed to the mounting groove, the lighting module including a front wall facing the front opening, the front wall including a main body portion and a decorative strip connected to the main body portion, and the upper end of the decorative strip extends into the mounting groove.

[0017] The structure of the embodiments of the present invention and its other invention objects and beneficial effects will become more obvious and understandable through the description of the preferred embodiments in conjunction with the drawings. [BRIEF DESCRIPTION OF THE DRAWINGS]

[0018] As part of the specification and for providing a further understanding of the present invention, the following drawings illustrate specific embodiments of the present invention and, together with the specification, are used to explain the principles of the present invention. Among them,

[0019] Figure 1 is a schematic partial cross-sectional view of a refrigeration appliance having a lighting module according to an embodiment of the present invention;

[0020] Figure 2 is a schematic partial enlarged cross-sectional view of a refrigeration appliance according to an embodiment of the present invention;

[0021] Figure 3 is a schematic perspective view of a lighting module according to an embodiment of the present invention;

[0022] Figure 4 is an exploded schematic view of a lighting module according to an embodiment of the present invention;

[0023] Figure 5 is a cross-sectional view along the Figure 3 A-A direction in

[0024] Figure 6 is a perspective view of a frame according to an embodiment of the present invention;

[0025] Figure 7 is a cross-sectional view along the Figure 3 B-B direction in

[0026] Figure 8 and Figure 9 are cross-sectional views along the Figure 3 C-C direction in [DETAILED DESCRIPTION OF THE EMBODIMENTS]

[0027] As Figure 1 shown, the refrigeration appliance 100 includes a main body 108, and the main body 108 may be provided with a storage chamber 101 having a front opening 10. The storage chamber 101 may be selectively opened or closed by a door 102.

[0028] The storage chamber 101 includes a top wall 103, a pair of side walls (not labeled), and a rear wall (not shown). The rear wall of the storage chamber 101 faces the front opening 10. At least some of these inner walls may be defined by an inner liner 109 of the main body 108.

[0029] The refrigeration appliance 100 includes a lighting module 1 for illuminating the storage chamber 101. The lighting module 1 may be accessible through the storage chamber 101.

[0030] As Figure 1 and Figure 2As shown, the refrigeration appliance 100 includes a mounting groove 110 for mounting the lighting module 1. In one embodiment, the mounting groove 110 can be formed by a mounting shell that is installed through a through-hole of the inner cabinet liner 109 and combined with the heat insulation material in the main body 108. In the embodiment as Figure 1 shown, the mounting groove 110 is formed by the inner cabinet liner 109 being recessed in a direction away from the storage chamber 101.

[0031] The lighting module 1 includes a housing 2. The housing 2 has a first connection structure 21 for connecting with the mounting groove 110 to detachably fix the lighting module 1 to the cabinet. As Figure 2 shown, the first connection structure 21 can be a plurality of hooks 211, 212, and the hooks cooperate with the card slots 111 in the mounting groove 110 to fix the lighting module 1 to the main body 108.

[0032] In an exemplary embodiment, the lighting module 1 can be disposed on the top wall 103. It is easy to understand that in other embodiments, the lighting module 1 can also be disposed on the side wall or the rear wall of the storage chamber 101.

[0033] The housing 2 has a light outlet 221, and light enters the storage chamber 101 from the light outlet 221. In the embodiment as Figure 1 shown, the light outlet 221 can be disposed substantially horizontally at the top of the storage chamber 101, and the light outlet 221 is located at the bottom of the housing 2. The housing 2 can include a front wall 25 facing the front opening 10.

[0034] When installed on the top wall 103 of the storage chamber 101, the front wall 25 slopes downward from top to bottom and its lower part is more backward than the upper part, which is beneficial for the front surface of the front wall 25 to be more easily seen by the user below the top wall 103.

[0035] In one embodiment, the front wall 25 includes a main body portion 251 and a decorative strip 252 fixed to the front side of the main body portion 251.

[0036] The decorative strip 252 can be pasted on the main body portion 251 by a pasting device 258. The decorative strip 252 can be made of metal or have a metallic decorative layer on a plastic substrate.

[0037] The upper end of the decorative strip 252 extends into the mounting groove 110. The mounting groove 110 can be configured in a stepped shape near the entrance, so as to have a recessed portion 112 with a shallower depth. The upper end of the decorative strip 252 extends into the recessed portion 112.

[0038] The main body portion 251 of the front wall 25 may have a recess 2510 for receiving the decorative strip 252, and the decorative strip 252 is located within the recess 2510. There is a connection seam 253 between the upper ends of the main body portion 251 and the decorative strip 252, which is exposed on the front surface of the front wall 25. In an exemplary embodiment of the present invention, the connection seam 253 is completely located within the installation groove 110 and is completely covered by the front inner wall surface of the installation groove 110 in the front-back direction X of the storage compartment 101.

[0039] As Figure 2 shown, the connection seam 253 is located within the recessed portion 112 and is disposed opposite to the front inner wall surface of the recessed portion 112 and the latter is completely covered in the front-back direction X of the storage compartment 101. Thus, a better visual transition can be achieved between the front side of the lighting module 1 and the inner tank 109.

[0040] The decorative strip 252 may include an upper end portion 255 at the upper end, a lower end portion 254 at the lower end, and a decorative portion 256 between the upper end portion 255 and the lower end portion 254. The front surface of the decorative portion 256 is an inclined surface that slopes downward from top to bottom. At least most of the front surface of the decorative portion 256 is visible to the user.

[0041] An angle is formed between the upper end portion 255 and the decorative portion 256. The front surface of the upper end portion 255 may extend in the vertical direction and / or be parallel to the front inner wall surface of the installation groove 110. The ridge line 259 between the upper end portion 255 and the decorative portion 256 may be located above the edge portion 1091 of the inner tank 109 surrounding the installation groove 110, which is conducive to obtaining a simple design.

[0042] The lower end portion 254 is connected to the lower end of the decorative portion 256. The lower end portion 254 bends from the decorative portion 256 and extends backward, so that the connection seam between the lower end portion 254 and the main body portion 251 in the front-back direction X of the storage compartment 101 is completely located behind the rear surface of the decorative portion 256. At least a part of the lower surface of the front wall 25 is formed by the lower end portion 254. This is conducive to improving the decorative effect.

[0043] The rear side of the decorative strip 252 may have a positioning portion 257 protruding toward the main body portion 251, and the main body portion 251 has a corresponding groove (not labeled), and the positioning portion 257 is located within the groove to position the decorative strip 252.

[0044] The front row of hooks 211 and the slot 111 of the first connection structure 21 can be connected to the slot 111 at a position above and behind the decorative strip 252. In one embodiment, when installing the lighting module 1, the rear end of the lighting module 1 can be first placed into the installation groove 110, so that the rear row of hooks 212 of the first connection structure 21 abuts against the rear row of slots in the installation groove 110, and then the lighting module 1 is rotated with this as a fulcrum, pressing the front row of hooks 211 into the installation groove 110 and engaging with the slot 111, thereby completing the installation of the lighting module 1. Since the front row of hooks 211 of the first connection structure 21 and the slot 111 are connected to the slot 111 at a position above and behind the decorative strip 252, and the upper end of the decorative strip 252 is finally located in the shallower recess 112, the possibility that the decorative strip 252 seriously interferes with the inner box liner 109 and falls off during the installation process of the lighting module 1 is significantly reduced.

[0045] The following will describe in detail the specific structure of the lighting module 1 according to an embodiment of the present invention with reference to the accompanying drawings.

[0046] Please refer to Figure 3 and Figure 4 , the housing 2 may include a frame 22 and a cover 23. The light source 3 of the lighting module 1 is located in the accommodation space 26 surrounded by the frame 22 and the cover 23.

[0047] The frame 22 may be made of opaque plastic. The frame 22 is provided with a light outlet 221 on the wall exposed to the storage room 101, and light irradiates the storage room 101 through the light outlet 221.

[0048] The lighting module 1 includes a light guide plate 4. The light guide plate 4 is located between the light outlet 221 and the cover 23, and the light guide plate 4 is adapted to direct the light from the light source 3 to the light outlet 221.

[0049] The light guide plate 4 may include a plurality of light dots, and the light in the light guide plate 4 can be refocused at the light dots. The light dots can be formed by printing, or concave / convex dot portions.

[0050] The light source 3 is located inside the housing 2. The light source 3 may include a plurality of light-emitting elements 31 and a substrate 32 carrying the light-emitting elements 31. The light-emitting elements 31 may be light-emitting diodes.

[0051] The light guide plate 4 can completely cover the light outlet 221 and can be substantially parallel to the light outlet 221. The light guide plate 4 has a first end face 41 opposite to the light source 3 and a second end face 42 opposite to the first end face 41. The light emitted by the light source 3 enters the light guide plate 4 through the first end face 41.

[0052] The lighting module 1 may further include a diffusion plate 5 located between the light guide plate 4 and the light outlet 221, which can uniformly diffuse the light from the light guide plate 4, so that the light passing through the light outlet 221 is substantially uniform.

[0053] The lighting module 1 may further include a reflective layer 6 located between the light guide plate 4 and the cover 23, so that light is irradiated toward the diffusion plate 5 as close to total reflection as possible.

[0054] The reflective layer 6, the light guide plate 4, and the diffusion plate 5 may be sequentially and adjacently arranged between the cover 23 and the light exit 221.

[0055] We found that the light guide plate 4 may expand in an environment with high temperature or humidity and may contract in an environment with low temperature or humidity. The expansion caused by temperature may be reversible, while the expansion caused by humidity may be irreversible. When the lighting module 1 is installed in storage compartments with different temperatures / humidities of the refrigeration appliance 100, the light guide plate 4 will undergo dimensional changes to varying degrees, resulting in different lighting qualities of the same lighting module 1 when located in different storage compartments. For example, the lighting qualities of the lighting modules located in the refrigerating compartment and the freezing compartment are different after a period of time. The lighting module 1 located in one storage compartment may also have unstable lighting quality when the storage compartment is adjusted to different temperature zones.

[0056] To solve this problem, as Figure 5 shown, a lighting module 1 according to an embodiment of the present invention may include a first elastic member 7. The first elastic member 7 may be clamped between the second end face 42 of the light guide plate 4 and the housing 2 to apply a force toward the light source 3 to the light guide plate 4, so that regardless of which storage compartment the lighting module 1 is installed in or even if the lighting module 1 is installed in a storage compartment that can span temperature / humidity zones, the first end face 41 of the light guide plate 4 can maintain a constant position relative to the light source 3, thereby improving the compatibility of the lighting module 1 in the refrigeration appliance 100 and / or facilitating obtaining stable lighting quality.

[0057] The first elastic member 7 may be fixed to the housing 2. In one embodiment, the first elastic member 7 may be made of elastic foam and adhered to the housing 2.

[0058] Please refer to Figure 4 and Figure 6 , a second connection structure 24 is provided between the cover 23 and the frame 22 to reliably fix the cover 23 and the frame 22. The second connection structure 24 may include a plurality of spaced hooks 231 provided on one of the cover 23 and the frame 22 and a first through hole 241 provided on the other of the cover 23 and the frame 22 for cooperating with the corresponding hooks 231.

[0059] The first connection structure 21 and the second connection structure 24 may be staggeredly arranged to avoid mutual interference.

[0060] As Figure 5 , Figure 6 and Figure 7As shown, the light guide plate 4, the diffusion plate 5, and the reflective layer 6 are sandwiched between the cover 23 and the frame 22. Specifically, the frame 22 may include a support edge 222 surrounding the light exit opening 221. The edge of the diffusion plate 5 is supported on the support edge 222. The light guide plate 4 located behind the diffusion plate 5 is thus indirectly supported by the support edge 222.

[0061] When the cover 23 and the frame 22 are fixed, the distance between them is relatively fixed. The light guide plate 4 may expand or contract reversibly or irreversibly due to different environmental conditions (such as humidity and temperature). For this reason, the lighting module 1 may include a second elastic member 8 located between the light guide plate 4 and the cover 23. The second elastic member 8 is arranged to apply a force towards the light exit opening 221 to the light guide plate 4, so that the position of the light guide plate 4 relative to the diffusion plate 5 in the direction perpendicular to the light guide plate 4 is constant.

[0062] The second elastic member 8 and the light guide plate 4 are clamped between the cover 23 and the frame 22 to deform the second elastic member 8 to apply a force towards the light exit to the light guide plate 4.

[0063] The second elastic member 8 is in surface contact with the inner surface 236 of the cover 23 facing the light guide plate 4. The second elastic member 8 may be located between the reflective layer 6 and the cover 23. The second elastic member 8 may be sheet-shaped to make the force on the light guide plate 4 more uniform. The second elastic member 8 may be made of elastic foam.

[0064] When the cover 23 and the frame 22 are fixed by the second connection structure 24, the second elastic member 8 is clamped between the light guide plate 4 and the cover 23 and deformed. Thus, even if the light guide plate 4 expands or contracts to different degrees under different environments, the second elastic member 8 can still adjust the position of the light guide plate 4 relative to the diffusion plate 5 in the direction perpendicular to the light guide plate 4. The size of the second elastic member 8 may be designed such that the second elastic member 8 always remains deformed within the deformation range of the light guide plate 4.

[0065] In an exemplary embodiment, the housing 2 includes a support edge 222 surrounding the light exit opening 221 and an inner frame 223 surrounding the support edge 222. The inner frame 223 protrudes from the support edge 222 in a direction away from the light exit opening 221. The outer surface of the support edge 222 may form the lower surface of the housing 2 and be exposed to the storage chamber 101. The inner frame 223 may have a spacing from the outer peripheral surface of the housing 2. The light guide plate 4 and the diffusion plate 5 are supported on the inner side surface of the support edge 222.

[0066] There is a mounting portion 224 between the first end face 41 of the light guide plate 4, the support edge 222, and the inner frame 223. The substrate � of the light source 3 is mounted on the mounting portion 224 so that the light emitting element 31 and the first end face 41 of the light guide plate 4 are arranged face to face.

[0067] The substrate 32 is mounted on the frame 22 along the inner side of the inner frame 223, and the substrate 32 and the light guide plate 4 can be arranged substantially perpendicular to each other.

[0068] The support edge 222 and the inner frame 223 can be located on the frame 22. The mounting portion 224 can include a slot 225 located on the frame 22 for positioning the substrate 32. A part of the inner surface of the slot 225 can be formed by the inner frame 223 and / or the support edge 222.

[0069] The housing 2 can include a pair of first limiting portions 226 located at both ends of the mounting portion 224. Each first limiting portion 226 can protrude inward from the inner surface of the inner frame 223 by a certain distance and then protrude towards the other limiting portion 226, thereby forming the end of the mounting portion 224 to limit both ends of the substrate 32.

[0070] The housing 2 can also include a rib 227 located between the pair of first limiting portions 226. The rib 227 and the inner surface of the inner frame 223 have a predetermined distance to limit the substrate 32 at the middle part of the substrate 32.

[0071] The first elastic member 7 is located between the second end face 42 of the light guide plate 4 and the inner frame 223 to apply a force to the light guide plate 4 towards the light source 3. The first elastic member 7 can be fixed to the inner frame 223, for example, adhered to the inner frame 223. Under the action of the first elastic member 7, the first end face 41 of the light guide plate 4 can always be in contact with the first limiting portion 226 and / or the rib 227, thereby enhancing the reliability of the light of the light-emitting element 31 entering the light guide plate 4.

[0072] In the direction perpendicular to the light exit 221, the height of the inner frame 223 can be higher than the thickness of the diffusion plate 5, the light guide plate 4, the reflective layer 6, and the second elastic member 8 stacked together. In the direction perpendicular to the light exit 221, the height of the substrate 32 is also greater than the thickness of the diffusion plate 5, the light guide plate 4, the reflective layer 6, and the second elastic member 8 stacked together and protrudes beyond the second elastic member 8 in the direction away from the light exit 221. This is beneficial for the substrate 32 to be smoothly placed in the mounting portion 224 still in a narrow space.

[0073] The cover 23 can have a second limiting portion 235 protruding from the inner surface 230 facing the light exit 221. The second limiting portion 235 and the side of the substrate 32 close to the cover 23 are in face-to-face contact to limit the substrate 32. By clamping the substrate 32 between the second limiting portion 235 and the inner frame 223, the mounting portion 224 can be arranged such that the light-emitting element 31 can be exposed to the light guide plate 4 as widely as possible, while the substrate 32 can still be firmly fixed in the housing 2 through the limitation of the second limiting portion 235.

[0074] The substrate 32 may be provided with a number of avoidance holes 321 to ensure that even if the height of the substrate 32 increases, the second connection structure 24 can still pass through the substrate 32 to connect the cover 23 and the frame 22.

[0075] For example, at the corresponding mounting portion 224, the inner frame 223 may have a plurality of first through holes 241 arranged at intervals, and the cover 23 is provided with a plurality of hooks 231 for extending into the first through holes 241 and engaging with them. The avoidance holes 321 are arranged corresponding to the first through holes 241. The avoidance holes 321 may be closed holes or formed by notches at the edges of the substrate 32.

[0076] The second limiting portion 235 may be located between adjacent hooks 231 along the length direction of the substrate 32. As Figure 7 shown, in the direction perpendicular to the substrate 32, the second limiting portion 235 may be located inside the hook 231, that is, the distance between the second limiting portion 235 and the substrate 32 in the direction perpendicular to the substrate 32 is greater than the distance between the hook 231 and the substrate 32 in the direction perpendicular to the substrate 32.

[0077] In the above embodiment, through the adaptive adjustment of the first elastic member and / or the second elastic member in the housing, even if the light guide plate expands or contracts in the refrigeration appliance, the light guide plate can still maintain a relatively constant position relative to the light source and / or the light outlet through the adjustment of the first elastic member and / or the second elastic member, so that it is possible for the lighting module for the refrigeration appliance to maintain a stable lighting quality in different environments without fixing components such as the light source, the light guide plate, and the diffusion plate together by means such as glue.

[0078] On the other hand, the upper end of the decorative strip of the lighting module extends into the installation groove, and the connection gap between the decorative strip and the housing can be cleverly hidden in the installation groove, and the transition between the inner box liner and the decorative strip can be simple, which is beneficial to obtaining a refrigeration appliance with higher texture.

[0079] In the embodiment, since components such as the light source, the light guide plate, and the diffusion plate can be stably fixed in the housing through corresponding mechanisms, it is possible not to irreversibly combine these components together with glue additionally.

[0080] Combined Figures 1 to 9 The various embodiments described can be combined with each other in any given manner to achieve the advantages of the present invention. In addition, the present invention is not limited to the illustrated embodiments, and other means than the illustrated means can generally be used as long as these means can achieve the same effect.

Claims

1. A lighting module (1) for a refrigeration appliance (100), characterized in that, comprising: a housing (2) including a light-emitting opening (221), the housing including a support edge (222) surrounding the light-emitting opening and an inner frame (223) disposed along the support edge, the inner frame protruding from the support edge in a direction away from the light-emitting opening; a light source (3) located within the housing, the light source including a light-emitting element (31) and a substrate (32) carrying the light-emitting element; a light guide plate (4), the light guide plate being supported on the support edge and including a first end face (41) facing the inner frame; the housing includes a mounting portion (224) located between the first end face of the light guide plate, the support edge and the inner frame; the substrate is mounted on the mounting portion such that the light-emitting element and the first end face of the light guide plate are disposed face to face, the housing includes a frame (22) and a cover (23), the frame including the light-emitting opening, the support edge and the inner frame, the cover being connected to the frame, a snap connection structure is provided between the cover and the inner frame, and the substrate has an avoidance groove (321) corresponding to the snap connection structure.

2. The lighting module according to claim 1, characterized in that, the mounting portion includes a slot (225) for positioning the substrate, and a part of the inner surface of the slot is formed by the inner frame and / or the support edge.

3. The lighting module according to claim 1, characterized in that, the housing includes a rib (227) protruding from the support edge to limit the substrate, and the first end face of the light guide plate contacts the rib.

4. The lighting module according to claim 1, characterized in that, the cover includes an inner surface (236) facing the light-emitting opening and a limiting portion (235) protruding from the inner surface in a direction towards the light-emitting opening, and the substrate is sandwiched between the limiting portion and the inner frame.

5. The lighting module according to claim 4, characterized in that, a plurality of snap connection structures (24) are provided between the cover and the inner frame, the snap connection structure includes a hook (231) located on the cover, and in a direction perpendicular to the substrate, the distance between the second limiting portion and the substrate in the direction perpendicular to the substrate is greater than the distance between the hook and the substrate in the direction perpendicular to the substrate.

6. The lighting module according to claim 1, characterized in that, an elastic member (7) is included, the elastic member is squeezed between the second end face (42) of the light guide plate and the inner frame to apply a force towards the light source to the light guide plate, wherein the second end face is opposite to the first end face.

7. A refrigeration appliance, characterized in that, it includes a storage chamber and the lighting module according to any one of the above claims.

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