Display knob and refrigeration device

Abstract

The utility model discloses a knob and a refrigeration device, and the knob comprises an outer housing, an inner housing, and a light-emitting member. The light-emitting part is arranged at the position opposite to the light-emitting surface, and the light emitted by the light-emitting part is reflected to the light-emitting surface to be emitted through the reflection cavity, so that the granular sensation of light can be avoided without increasing the distance between the light-emitting surface of the light-emitting part and the light-emitting surface, and the light-emitting uniformity is improved. Therefore, the distance between the light-emitting part and the light-emitting surface can be reduced, the compactness of the display knob is improved, the limitation of the display knob on the installation space is reduced, and the technical effect of improving the light-emitting uniformity of the light-emitting surface can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigeration, and in particular relates to a display knob and a refrigeration device. Background Art

[0002] Combination Figure 1 As shown, the existing display knob includes an information display lamp 100 and a lamp ring located at a circumferential position of the information display lamp 100 itself, for highlighting the position of the knob. The lamp ring includes a plurality of light-emitting members 13 and a lampshade 120, and the light-emitting surfaces of the plurality of light-emitting members 13 are arranged toward the light-emitting surface 1201 of the lampshade.

[0003] Based on this, in order to avoid the occurrence of dark edges on the light-emitting surface, it is necessary to increase the number of light-emitting parts and plan and adjust the positions of the light-emitting parts so that the light ring can emit light evenly. However, this method not only increases the difficulty of setting the positions of the light-emitting parts, but also increases the number of light-emitting parts, resulting in an increase in the manufacturing cost of the display knob. At the same time, the existing display knob increases the distance between the light-emitting surface of the light-emitting part 13 and the light-emitting surface 1201 of the light ring to reduce the granularity of the light-emitting part on the light-emitting surface and improve the uniformity of the light-emitting surface. However, this method increases the installation space required for the display knob and increases the restriction of the display knob on the installation space. Utility Model Content

[0004] In view of the above problems, the utility model discloses a display knob and a refrigeration device to overcome the above problems or at least partially solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] On the one hand, the utility model claims protection for a display knob, comprising an outer shell, an inner shell and a light-emitting member;

[0007] A first open groove is provided on the top surface of the housing, and the groove position of the first open groove serves as a light emitting surface;

[0008] The inner shell is sleeved in the first open groove, and the outer shell can rotate relative to the inner shell; a reflection cavity is formed between the outer shell and the inner shell;

[0009] The light emitting element is fixedly connected to the inner shell, the light emitting surface of the light emitting element faces away from the light emitting surface, and the light emitted by the light emitting element is reflected by the reflection cavity to the light emitting surface and then emitted.

[0010] Furthermore, in the reflection cavity, the surface of the outer shell and the surface of the inner shell are both polished surfaces.

[0011] Further, it also includes a light ring;

[0012] The lamp ring is fixed in the first open groove so that the light reflected in the reflection cavity is emitted through the top surface of the lamp ring;

[0013] The bottom surface of the lamp ring is extended along the axial direction to form a first flange, and the first flange is inserted into the cavity opening of the reflection cavity.

[0014] Furthermore, the top surface of the lamp ring extends toward the inner side thereof to form a second flange;

[0015] The top surface of the lamp ring is extended to form a third flange toward the outside thereof, and the third flange is buckled on the top surface of the shell, so that the lamp ring can rotate along with the shell.

[0016] Furthermore, an angle formed by a bottom surface of the third flange and an outer side surface of the lamp ring, and / or an angle formed by a bottom surface of the second flange and an inner side surface of the lamp ring are set as chamfers.

[0017] Further, the first flange is provided with a second claw, and the inner side surface of the housing is provided with a third groove engaged with the second claw; or,

[0018] A third clamping groove is provided on the first flange, and a second clamping claw engaged with the third clamping groove is provided on the inner side surface of the shell.

[0019] Furthermore, an outer angle of the top surface of the lamp ring and an inner angle of the top surface of the lamp ring are both arc angles.

[0020] Furthermore, it also includes a dark display and a digital tube; the top surface of the inner shell is provided with a second open groove, the dark display and the digital tube are both located in the second open groove, and the dark display is located on the top of the digital tube;

[0021] The light-emitting element is fixed on the back of the digital tube, and the dark display is fixed on the front of the digital tube and fixed on the inner shell.

[0022] Furthermore, the shape of the reflective cavity along the axial section of the display knob is two "L" shapes arranged at intervals, and the two "L" shapes are symmetrically arranged;

[0023] The bottom edge of each "L" shape is arranged in a "V" shape, and the two sides of the "V" shape are at an angle of 45 degrees with the horizontal plane; the light emitted by the light-emitting component is reflected from the two sides of the "V" shape in turn to the cavity mouth of the reflection cavity and emitted.

[0024] On the other hand, the utility model also claims protection for a refrigeration device, comprising the display knob and cabinet described in any one of the above items; the display knob is fixed on the inner wall of the cabinet and is used to adjust the refrigeration temperature.

[0025] The advantages and beneficial effects of the utility model are:

[0026] In the display knob and refrigeration device of the utility model, the display knob sets the light-emitting element at a position facing away from the light-emitting surface, and reflects the light emitted by the light-emitting element to the light-emitting surface through the reflection cavity, so that there is no need to increase the distance between the light-emitting surface of the light-emitting element and the light-emitting surface, and the granularity of the light can be avoided and the uniformity of the light emission can be improved. Based on this, not only can the distance between the light-emitting element and the light-emitting surface be reduced, the compactness of the display knob can be improved, and the restriction of the display knob on the installation space can be reduced, but also the technical effect of improving the uniformity of the light emission from the light-emitting surface can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0028] Figure 1 An axial cross-sectional view showing a knob for the prior art;

[0029] Figure 2 An exploded view of the knob is shown for this embodiment;

[0030] Figure 3 An axial cross-sectional view of the knob is shown for this embodiment;

[0031] Figure 4 An axial cross-sectional view of the light ring in the knob is shown for this embodiment;

[0032] Figure 5 This is a schematic diagram showing the structure of the connection between the display button and the cabinet of the refrigeration device in this embodiment;

[0033] Figure 6 Axial cross-sectional views of the knobs are shown for other embodiments.

[0034] In the figure: 11, outer shell; 12, inner shell; 13, light-emitting member; 14, reflective cavity; 15, lamp ring; 16, dimming; 17, digital tube; 18, encoder; 22, cabinet; 100, information display lamp; 111, top surface of outer shell; 112, inner side of outer shell; 120, lampshade; 1201, light-emitting surface of lampshade; 121, second open slot; 122, slider; 123, first slot; 124, second slot; 151, top surface of lamp ring; 153, first slot A flange; 154, a second flange; 155, a third flange; 156, a second claw; 157, an outer side surface of the lamp ring; 158, an inner side surface of the lamp ring; 161, a first claw; 162, a first clamping block; 171, a slide groove; 1111, a first open groove; 1121, a third groove; 1211, a hole groove; 1511, an outer corner of the top surface of the lamp ring; 1512, an inner corner of the top surface of the lamp ring; 1541, a bottom surface of the second flange; 1551, a bottom surface of the third flange. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and effect of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0037] Combination Figures 2 to 3 As shown, an embodiment of the utility model discloses a display knob. For example, the display knob can be set on the cabinet 22 of the beauty refrigerator to adjust the refrigeration temperature of the beauty refrigerator.

[0038] Specifically, the display knob includes an outer shell 11, an inner shell 12 and a light-emitting member 13. For example, the light-emitting member 13 is in the form of a lamp bead, and a first open groove 1111 is provided on the top surface 111 of the outer shell, and the notch position of the first open groove 1111 serves as a light-emitting surface. The inner shell 12 is sleeved in the first open groove 1111, and a reflective cavity 14 is formed between the outer shell 11 and the inner shell 12, and the outer shell 11 can rotate relative to the inner shell 12, that is, by adjusting the angle of rotation of the outer shell relative to the inner shell, the refrigeration temperature set by the refrigeration device is adjusted.

[0039] Combination Figure 3 As shown, the light emitting element 13 is fixedly connected to the inner shell 12, the light emitting surface of the light emitting element 13 faces away from the light emitting surface, and the light emitted by the light emitting element 13 is reflected by the reflection cavity 14 to the light emitting surface and emitted.

[0040] In the display knob of the present embodiment, the light-emitting component is arranged at a position facing away from the light-emitting surface, and the light emitted by the light-emitting component is reflected to the light-emitting surface through the reflection cavity. Therefore, there is no need to increase the distance between the light-emitting surface and the light-emitting surface of the light-emitting component, and the granularity of the light can be avoided and the uniformity of the light emission can be improved. Moreover, the distance between the light-emitting component and the light-emitting surface can be reduced, thereby improving the compactness of the display knob and reducing the restriction of the display knob on the installation space. At the same time, the technical effect of improving the uniformity of the light emission from the light-emitting surface can be achieved.

[0041] In addition, in this embodiment, the display knob is cylindrical, and accordingly, the inner shell 12 and the outer shell 11 are both annular. Figure 3 As shown, in this embodiment, the reflective cavity 14 is divided into two "L"-shaped cavities spaced apart along the axial section of the display knob, and the two "L"-shaped cavities are symmetrically arranged, including a transverse reflective cavity and a longitudinal reflective cavity. The bottom surfaces of the transverse reflective cavity and the longitudinal reflective cavity are at the same horizontal height, one end of the transverse reflective cavity is connected to the longitudinal reflective cavity, and the cavity opening of the longitudinal reflective cavity serves as the light emitting surface. The light emitted by the light emitting element 13 is reflected in the transverse reflective cavity, and then reflected by the longitudinal reflective cavity until it is reflected to the light emitting surface and emitted.

[0042] In other embodiments, in combination Figure 6 As shown, the bottom edge of the "L"-shaped reflective cavity can also be set in a "V" shape, and the two sides of the "V" shape are at an angle of 45 degrees with the horizontal plane. Based on this, the light emitted by the light-emitting component is directly reflected from the two sides of the "V" shape to the cavity mouth of the reflective cavity and emitted out, which can reduce the number of reflections of the light in the reflective cavity, thereby reducing the waste of light and achieving the technical effect of improving the brightness of the light. In this embodiment, the bottom surface of the "L"-shaped reflective cavity is set in a horizontal direction, which can reduce the space occupied by the reflective cavity, thereby achieving the technical effect of reducing the space required for the housing.

[0043] In addition, in this embodiment, the surface of the outer shell 11 and the surface of the inner shell 12 forming the reflective cavity 14 are both polished surfaces. At the same time, they are preferably white, which can improve the reflective performance of the reflective cavity to light, thereby achieving the technical effect of improving the brightness of light.

[0044] Of course, in other embodiments, depending on the processing technology of the outer shell and the inner shell, the outer shell and the inner shell surface forming the reflective cavity can also be coated with a high reflective film, which can also reduce the loss of light during the reflection process, thereby achieving the technical effect of improving the brightness of the light. In this embodiment, the white polished surface is used to improve the reflective performance of light, which can achieve the technical effect of reducing costs.

[0045] In addition, combined Figure 2As shown, in this embodiment, the display knob also includes an encoder 18. The encoder 18 is fixed to the cabinet 22 and is electrically connected to the circuit board of the refrigeration device. The encoder transmits the required temperature information of the refrigeration device to the circuit board through the angle of rotation of the outer shell, so that the refrigeration device reaches the required temperature. Figure 3 The bottom end shown can extend out of the outer shell 11 and be fixed on the encoder 18 to fix the position of the inner shell. The inner shell is connected to the encoder by snapping, for example, a fourth claw is provided on the inner shell, and a fourth slot is provided on the encoder. The fourth claw is snapped into the fourth slot to achieve a detachable fixed connection between the inner shell and the encoder, which is convenient for disassembly and maintenance of the inner shell and the encoder.

[0046] Of course, in other embodiments, a fourth slot may be provided on the inner shell, and a fourth claw may be provided on the encoder. The fourth claw may be engaged in the fourth slot, so that a detachable fixed connection between the inner shell and the encoder can be achieved.

[0047] In addition, combined Figure 2 and Figure 3 As shown, in this embodiment, it also includes a dimming display 16 and a digital tube 17. The top surface of the inner shell 12 (i.e., along the Figure 3 The top of the vertical direction shown in FIG. 1 is provided with a second open slot 121, and the dimming display 16 and the digital tube 17 are both located in the second open slot 121, and along Figure 3 As shown, the dark display 16 is located at the top of the digital tube 17. Based on this, the light-emitting element 13 is fixed on the back side of the digital tube 17 (i.e. Figure 3 The light-emitting member 13 is fixed on the inner shell 12 through the digital tube 17, and the dark display 16 is fixed on the front side of the digital tube 17 (i.e. Figure 3 The top surface shown in the figure) is fixed on the inner shell 12.

[0048] The dark display 16 is used as a display screen of the digital tube 17, and can present information, such as the specific temperature set by the refrigeration device, through the dark display 16. Furthermore, the light-emitting element 13 is fixed on the back of the digital tube 17, and the light-emitting element and the digital tube can be connected in series, so that the light-emitting element and the digital tube can be turned on and off at the same time, reducing the difficulty of electrically connecting and controlling the light-emitting element and the digital tube separately, thereby achieving the purpose of improving the simplicity of turning on and off the light-emitting element and the digital tube.

[0049] Based on this, combined Figure 2 and Figure 3As shown, in this embodiment, the bottom surface of the second open groove 121 is provided with a plurality of holes 1211, and the position of the light emitting element 13 corresponds to the position of the holes 1211, so that the light emitted by the light emitting surface can pass through the holes 1211 and enter the reflective cavity 14. In other embodiments, the bottom surface of the second open groove can also be made of a transparent material, such as glass, so that the light emitted by the light emitting element can also be reflected by the reflective cavity.

[0050] Of course, in other embodiments, the light emitting component may also be disposed on the outer bottom surface of the inner shell, that is, in the reflective cavity, so that the light emitted by the light emitting component can be reflected to the cavity opening of the reflective cavity through the reflective cavity and emitted.

[0051] In addition, combined Figure 2 and Figure 3 As shown, in this embodiment, the dimming display 16 and the digital tube 17 are respectively detachably fixedly connected to the inner shell 12. Specifically, a slide groove 171 is provided on the digital tube 17, and a slider 122 is provided on the inner shell 12, and the slider 122 can be moved along the length direction of the slide groove 171 (i.e. Figure 3 The digital tube can be positioned in the circumferential direction by sliding the slider and the slide groove.

[0052] Combination Figure 2 As shown, in this embodiment, the dark display 16 is provided with a first clamping claw 161, and the inner shell 12 is provided with a first clamping groove 123. The first clamping claw 161 and the first clamping groove 123 can realize a detachable fixed connection between the dark display 16 and the inner shell 12, so as to facilitate the maintenance and replacement of the dark display and the digital tube. At the same time, the dark display 16 extends inward, so that the digital tube is positioned along its own axial direction, thereby further limiting the position of the digital tube and improving the stability of the position of the digital tube.

[0053] Furthermore, combined with Figure 2 As shown, in this embodiment, a first card block 162 is provided on the dark display 16, and a second card slot 124 is provided on the inner shell 12. The first card block 162 is inserted into the second card slot 124, which can further locate the circumferential position between the dark display and the inner shell, thereby achieving the technical effect of improving the stability of the dark display position.

[0054] Of course, in other embodiments, a first card slot may be provided on the dark display, and a first claw may be provided on the inner shell, and the dark display and the inner shell may be detachably fixedly connected by the first card slot and the first claw, so as to facilitate the maintenance of the dark display and the digital tube. Similarly, a second card slot may be provided on the dark display, and a first card block may be provided on the inner shell, and the dark display may be positioned along its own circumferential direction by inserting and fixing the first card block and the second card slot.

[0055] In addition, in this embodiment, the light-emitting components 13 can be arranged in a circular shape along the shape of the digital tube 17, so as to achieve the technical effect of uniform light emission from the light-emitting surface. Compared with setting the light-emitting surface of the light-emitting component toward the light-emitting surface, this embodiment can achieve the technical effect of reducing the number of light-emitting components, thereby achieving the technical effect of reducing costs.

[0056] Of course, in other embodiments, the placement shape of the light-emitting components may be adjusted according to the number and shape of the light-emitting components.

[0057] Combination Figures 2 to 4 As shown, in this embodiment, the display knob further includes a light ring 15. The light ring 15 is fixed in the first open groove 1111, so that the light reflected in the reflection cavity 14 is emitted through the top surface 151 of the light ring, and the light ring can avoid the glare of the light-emitting surface, and the light ring is made of milky white diffusion material, so that the light emitted from the light ring is more uniform and softer, thereby achieving the technical effect of improving the user's comfort.

[0058] Among them, combined Figure 4 As shown, the bottom surface of the lamp ring 15 is extended along the axial direction to form a first flange 153, which is inserted into the cavity opening of the reflective cavity 14 to fix the position of the lamp ring 15. At the same time, the shape of the first flange 153 is the same as the cavity opening of the reflective cavity 14, thereby improving the technical effect of the first flange covering the cavity opening of the reflective cavity.

[0059] Furthermore, combined with Figure 2 As shown, a second clamping claw 156 is provided on the first flange 153, and a third clamping groove 1121 clamped with the second clamping claw 156 is provided on the inner side surface 112 of the shell. The lamp ring can be fixed to the shell through the clamping between the second clamping claw 156 and the third clamping groove 1121, thereby achieving the technical effect of improving the position stability of the lamp ring.

[0060] Of course, in other embodiments, according to different settings of the lamp ring, a third slot can be provided on the first flange, and a second claw engaged with the third slot can be provided on the inner side of the shell. The technical effect of fixing the position of the lamp ring can also be achieved by the engagement between the third slot and the second claw. Figure 4 As shown, in this embodiment, the top surface 151 of the lamp ring extends inwardly to form a second flange 154. The second flange can be used to adjust the light inside the lamp ring to the top of the second flange, thereby achieving the technical effect of improving the brightness of the lamp ring. At the same time, the second flange 154 is spaced apart from the dark display 16, so that the second flange can not only prevent the dark display from rotating with the lamp ring and improve the stability of the dark display position, but also further limit the dark display to prevent it from falling, and further limit the position of the dark display.

[0061] Furthermore, combined with Figure 4 As shown, in this embodiment, the top surface 151 of the lamp ring extends outward to form a third flange 155, and the third flange 155 is buckled on the top surface of the outer shell. The lamp ring 15 can rotate along with the outer shell 11, and the lamp ring can be clamped on the outer shell through the third flange, thereby further improving the technical effect of the position stability of the lamp ring.

[0062] In addition, combined Figure 4 As shown, in this embodiment, the outer angle 1511 of the top surface of the light ring and the inner angle 1512 of the top surface of the light ring are both arc angles, which can avoid the light emitted by the light ring having dark corners and can also make the appearance of the light ring softer, thereby achieving the technical effect of improving the aesthetics of the light ring.

[0063] Furthermore, combined with Figure 4 As shown, in the present embodiment, the angle formed by the bottom surface 1551 of the third flange and the outer side surface 157 of the lamp ring and the angle formed by the bottom surface 1541 of the second flange and the inner side surface 158 of the lamp ring are both set to be chamfered, wherein the chamfer may be a right angle or a rounded angle to form an avoidance structure, which can avoid the situation where the angle formed by the bottom surface of the first flange and the outer side surface of the lamp ring blocks the outer angle of the top surface of the lamp ring, and avoid the situation where the angle formed by the bottom surface of the second flange and the inner side surface of the lamp ring blocks the inner angle of the top surface of the lamp ring, thereby achieving the technical effect of avoiding the appearance of dark edges in the lamp ring, and further improving the light output effect of the lamp ring.

[0064] Based on this, in the outer shell, the angle formed by the bottom surface 1551 of the third flange and the outer side surface 157 of the lamp ring and the corresponding position of the outer shell 11, as well as the angle formed by the bottom surface 1541 of the second flange and the inner side surface 158 of the lamp ring and the corresponding position of the outer shell are the same shape, and can fit together to ensure the support of the outer shell for the lamp ring.

[0065] Of course, the angle formed by the bottom surface of the first flange and the outer surface of the lamp ring can be set as a chamfer, or the angle formed by the bottom surface of the second flange and the inner surface of the lamp ring can be set as a chamfer, which can also avoid the occurrence of dark edges in the lamp ring and improve the uniformity of the brightness of the lamp ring.

[0066] Another embodiment of the present invention discloses a refrigeration device, such as Figure 5 As shown, the refrigeration device includes a cabinet 22 and the display knob in the above embodiment; the display knob is fixed on the inner wall of the cabinet 22 and is used to adjust the refrigeration temperature.

[0067] The above description is only a specific implementation of the present invention. Under the above teaching of the present invention, those skilled in the art can make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of the present invention, and the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A display knob, characterized in that: It comprises an outer shell (11), an inner shell (12) and a light-emitting element (13); The top surface (111) of the housing is provided with a first open groove (1111), and the groove position of the first open groove (1111) serves as a light emitting surface; The inner shell (12) is sleeved in the first open groove (1111), and the outer shell (11) is rotatable relative to the inner shell (12); a reflection cavity (14) is formed between the outer shell (11) and the inner shell (12); The light-emitting element (13) is fixedly connected to the inner shell (12); the light-emitting surface of the light-emitting element (13) faces away from the light-emitting surface; and light emitted by the light-emitting element (13) is reflected by the reflection cavity (14) to the light-emitting surface for emission.

2. The display knob according to claim 1, characterized in that: In the reflection cavity (14), the surface of the outer shell (11) and the surface of the inner shell (12) are both polished surfaces.

3. The display knob according to claim 1, characterized in that: Also includes a light ring (15); The lamp ring (15) is fixed in the first open groove (1111), so that the light reflected in the reflection cavity (14) is emitted through the top surface (151) of the lamp ring; The bottom surface of the lamp ring is extended axially to form a first flange (153), and the first flange (153) is inserted into the cavity opening of the reflection cavity (14).

4. The display knob according to claim 3, characterized in that: The top surface (151) of the lamp ring extends inwardly to form a second flange (154); The top surface (151) of the lamp ring extends outward to form a third flange (155), and the third flange (155) is buckled on the top surface (111) of the outer shell. The lamp ring (15) can rotate along with the outer shell (11).

5. The display knob according to claim 4, characterized in that: The angle formed by the bottom surface (1551) of the third flange and the outer surface (157) of the lamp ring, and / or the angle formed by the bottom surface (1541) of the second flange and the inner surface (158) of the lamp ring are set as chamfers.

6. The display knob according to claim 3, characterized in that: The first flange (153) is provided with a second claw (156), and the inner side surface (112) of the housing is provided with a third slot (1121) engaged with the second claw (156); or, A third clamping groove is provided on the first flange, and a second clamping claw engaged with the third clamping groove is provided on the inner side surface of the shell.

7. The display knob according to claim 3, characterized in that: The outer angle (1511) of the top surface of the lamp ring and the inner angle (1512) of the top surface of the lamp ring are both arc angles.

8. The display knob according to claim 1, characterized in that: It also includes a dark display (16) and a digital tube (17); the top surface of the inner shell (12) is provided with a second open groove (121), the dark display (16) and the digital tube (17) are both located in the second open groove (121), and the dark display (16) is located on the top of the digital tube (17); The light-emitting element (13) is fixed on the back of the digital tube (17), and the dark display (16) is fixed on the front of the digital tube (17) and fixed on the inner shell (12).

9. The display knob according to any one of claims 1 to 8, characterized in that: The shape of the reflection cavity (14) along the axial section of the display knob is two "L" shapes arranged at intervals, and the two "L" shapes are arranged symmetrically; The bottom edge of each "L" shape is arranged in a "V" shape, and the two sides of the "V" shape respectively form an angle of 45 degrees with the horizontal plane; the light emitted by the light-emitting element (13) is reflected in turn through the two sides of the "V" shape to the cavity opening of the reflection cavity (14) and emitted.

10. A refrigeration device, characterized in that: It comprises a display knob and a cabinet (22) as claimed in any one of claims 1 to 9; the display knob is fixed on the inner wall of the cabinet (22) and is used to adjust the refrigeration temperature.

Images