Small night lamp with heat dissipation function

Abstract

The utility model relates to a small night lamp with a heat dissipation function. The small night lamp comprises a shell, a lighting element, a heat dissipation piece and a power line. The shell comprises a front cover with a lampshade and a rear cover; the front cover and the rear cover enclose to form a cavity in which a lighting element and a heat dissipation piece can be mounted; one side of the lighting element is wrapped in the lampshade, the other side of the lighting element makes contact with the heat dissipation piece, and the heat dissipation piece is partially exposed out of the rear cover. The power line is arranged on the shell and electrically connected with the lighting element. According to the night lamp, the structural design is conducted on the night lamp, the heat dissipation piece making contact with the lighting element is arranged on the other side of the lighting element, meanwhile, the heat dissipation piece is partially exposed out of the rear cover, the heat dissipation piece can dissipate heat generated by the lighting element to the outside of the shell, the situation that the lighting element in the night lamp is damaged by high temperature is avoided, and the service life of the night lamp is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of night lights, and more specifically to a small night light with a heat dissipation function. Background Art

[0002] As part of home lighting, night lights can provide lighting for people at night and can be seen everywhere in our lives. Night lights have the advantages of low power consumption, miniaturization, and low cost. With the continuous iterative development of technology, night lights can also be customized in various styles according to user needs, and are deeply loved by users.

[0003] In existing designs, night lights are usually composed of a shell, a light board with an LED light, a lampshade and a power cord, but the light board is completely wrapped inside the shell and the lampshade. After long-term use, the internal temperature is prone to being too high, which in turn damages the light board and other electronic components, affecting the service life of the night light. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a night light with a heat dissipation function in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A night light with a heat dissipation function is provided, comprising a shell, a lighting element, a heat sink and a power cord; the shell comprises a front cover with a lampshade, and a rear cover; the front cover and the rear cover surround a cavity in which the lighting element and the heat sink can be installed; one side of the lighting element is wrapped in the lampshade, the other side of the lighting element is in contact with the heat sink, and the heat sink is partially exposed from the rear cover; the power cord is arranged on the shell and is electrically connected to the lighting element.

[0007] Furthermore, the back cover is a ring-shaped structure; there are multiple heat dissipation mounting positions, which are distributed at equal angles on the back cover, and the heat dissipation mounting positions extend obliquely from the edge of the back cover toward the first inner hole of the back cover; and at least one hollow hole is provided on the heat dissipation mounting position.

[0008] Furthermore, the heat sink includes a plurality of heat sink blocks respectively arranged on the heat sink mounting positions; at least a portion of one side of the heat sink is a plane, and another portion is a first inclined surface, and a plurality of first protrusions distributed evenly spaced are arranged on the first inclined surface; the other side of the heat sink is a second inclined surface, and a plurality of second protrusions distributed evenly spaced are arranged on the second inclined surface; a stop block is provided at the edge of the plane.

[0009] Furthermore, the lighting element is composed of a lamp board, and the lamp board is a ring-shaped structure; one side of the lamp board is provided with a plurality of LED lamps wrapped in the lampshade, and the other side of the lamp board is in contact with the plane.

[0010] Furthermore, the lamp panel is provided with a plurality of positioning holes, and the back cover is provided with a plurality of positioning posts; the positioning posts are arranged in the positioning holes.

[0011] Furthermore, the front cover is an annular structure; the lampshade is composed of a circular protrusion and a connecting piece arranged on the edge of the circular protrusion; the circular protrusion is embedded in the second inner hole of the front cover; and the connecting piece is arranged on the front cover.

[0012] Furthermore, an indicator light is provided on the light board; a first through hole for installing the indicator light is provided on the back cover; and the indicator light is electrically connected to the light board.

[0013] Furthermore, the light board is provided with a switch; the back cover is provided with a second through hole for installing the switch; and the switch is electrically connected to the light board.

[0014] Furthermore, a rotatable USB connector is provided at one end of the power cord, and a convex-shaped groove is provided at the other end of the power cord; a limit block corresponding to the groove is provided between the front cover and the rear cover; and the limit block is embedded in the groove.

[0015] Furthermore, the housing also includes a fastener, on which a buckle is provided; the front cover and the rear cover are surrounded to form a corresponding buckle position; the buckle is arranged in the buckle position.

[0016] The beneficial effect of the utility model is that: the present application designs the structure of the night light, and sets a contacting heat sink on the other side of the lighting element, while the heat sink is partially exposed from the back cover, so that the heat sink can dissipate the heat generated by the lighting element to the outside of the casing, thereby avoiding high temperature damage to the lighting element in the night light and increasing the service life of the night light. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0018] Figure 1 It is a front view schematic diagram of a night light with heat dissipation function according to an embodiment of the utility model;

[0019] Figure 2It is a rear view schematic diagram of a night light with heat dissipation function according to an embodiment of the utility model;

[0020] Figure 3 This is an exploded schematic diagram of a night light with heat dissipation function according to an embodiment of the utility model;

[0021] Figure 4 For the utility model embodiment Figure 4 The enlarged schematic diagram of point A in the middle;

[0022] Figure 5 It is a front view schematic diagram of the rear cover of the embodiment of the utility model;

[0023] Figure 6 A rear view schematic diagram of a rear cover of an embodiment of the utility model;

[0024] Figure 7 It is a front view schematic diagram of a light board of an embodiment of the utility model;

[0025] Figure 8 It is a front view schematic diagram of the front cover of the embodiment of the utility model;

[0026] Fig. 9 A rear view schematic diagram of a front cover of an embodiment of the utility model;

[0027] Fig.10 It is a front view schematic diagram of a lampshade according to an embodiment of the utility model.

[0028] In the figure, 1, shell; 2, lighting element; 3, lampshade; 4, heat sink; 5, indicator light; 6, switch; 7, power cord; 11, front cover; 12, back cover; 13, fastener; 21, light board; 22, LED light; 23, positioning hole; 31, circular protrusion; 32, connecting piece; 41, heat sink; 71, USB connector; 111, second inner hole; 121, heat dissipation mounting position; 122, first inner hole; 123, positioning column; 124, first through hole; 125, second through hole; 411, plane; 412, first inclined surface; 413, first protrusion; 414, second inclined surface; 415, second protrusion; 1211, hollow hole. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all 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 protection scope of the utility model.

[0030] The preferred embodiment of the present invention is as follows Figures 1 to 10 As shown, a night light with heat dissipation function is provided, comprising a shell 1, a lighting element 2, a heat sink 4 and a power cord 7; the shell 1 comprises a front cover 11 with a lampshade 3, and a rear cover 12; the front cover 11 and the rear cover 12 form a cavity in which the lighting element 2 and the heat sink 4 can be installed; one side of the lighting element 2 is wrapped in the lampshade 3, and the other side of the lighting element 2 is in contact with the heat sink 4, and the heat sink 4 is partially exposed from the rear cover 12; the power cord 7 is arranged on the shell 1 and is electrically connected to the lighting element 2.

[0031] Specifically, the front cover 11 with the lampshade 3, the lighting element 2, the heat sink 4 and the rear cover 12 are assembled in sequence, and the lighting element 2 and the heat sink 4 are fixed in the housing 1 by the enclosure of the front cover 11 and the rear cover 12. The side of the lighting element 2 with the light source is wrapped in the lampshade 3, and the side without the light source is in contact with the heat sink 4, where only a part of the lighting element 2 and the heat sink 4 are in contact. The heat sink 4 is partially exposed to the rear cover 12, so that the heat sink 4 can be in contact with the outside air, and the heat generated by the lighting element 2 is dissipated to the outside of the housing 1.

[0032] The present application sets a heat sink 4 on one side of the lighting element 2, and the heat sink 4 is partially exposed from the back cover 12. When in use, the heat sink 4 can dissipate the heat generated by the lighting element 2 to the outside to cool the lighting element 2. Compared with previous night lights, the present application can avoid high temperature from damaging the lighting element 2 in the night light and increase the service life of the night light.

[0033] In one embodiment, the back cover 12 is a ring-shaped structure; there are multiple heat dissipation mounting positions 121, and the multiple heat dissipation mounting positions 121 are distributed at equal angles on the back cover 12, and the heat dissipation mounting positions 121 extend obliquely from the edge of the back cover 12 to the first inner hole 122 of the back cover 12; at least one hollow hole 1211 is provided on the heat dissipation mounting position 121.

[0034] The number of heat dissipation mounting positions 121 in the space that can be accommodated by the back cover 12 can be set to 2, 3, 4, 5, 6..., and multiple heat dissipation mounting positions 121 are distributed in a ring shape at the same angle on the back cover 12. Among them, the heat dissipation mounting position 121 is located on the side facing the lighting element 2, and the heat dissipation mounting position 121 is a recessed setting; the heat dissipation mounting position 121 is located on the side facing away from the lighting element 2, and the heat dissipation mounting position 121 is a protruding setting. In this embodiment, the heat dissipation mounting position 121 is located on the side facing away from the lighting element 2 and extends obliquely toward the first inner hole 122 of the back cover 12. The number of hollow holes 1211 in the space that can be accommodated by the heat dissipation mounting position 121 can be set to 1, 2, 3, 4..., and the hollow holes 1211 are mainly used to increase the contact area between the heat sink 4 and the external air, and further improve the heat dissipation capacity.

[0035] In this embodiment, the number of the heat dissipation mounting positions 121 is four, which are distributed on the back cover 12 at intervals of 90°, and the number of the hollow holes 1211 of each heat dissipation mounting position 121 is four.

[0036] In another optional implementation, the heat dissipation mounting position 121 horizontally extends from the edge of the rear cover 12 toward the first inner hole 122 of the rear cover 12 .

[0037] In one embodiment, the heat sink 4 includes a plurality of heat sink blocks 41 respectively arranged on the heat sink mounting position 121; at least a portion of one side of the heat sink block 41 is a plane 411, and another portion is a first inclined surface 412, and a plurality of evenly distributed first protrusions 413 are provided on the first inclined surface 412; the other side of the heat sink block 41 is a second inclined surface 414, and a plurality of evenly distributed second protrusions 415 are provided on the second inclined surface 414; a stopper is provided at the edge of the plane 411.

[0038] Specifically, the plane 411 partially faces the lighting element 2 and contacts the lighting element 2, the first inclined surface 412 is located in the first inner hole 122 and does not contact the lighting element 2, the second inclined surface 414 faces the hollow hole 1211, and there are gaps between the multiple first protrusions 413, and the same is true for the multiple second protrusions 415. Due to the presence of the inclined surfaces, the multiple first protrusions 413 and the multiple second protrusions 415 form a step shape. Through this structural design, the contact area between the heat sink 41 and the space can be increased, so that the heat sink 41 can dissipate the heat of the lighting element 2 faster, thereby improving the heat dissipation capacity of the heat sink 41.

[0039] In another optional embodiment, one side of the heat dissipation block 41 may also be a plane 411, wherein a portion of the plane 411 is in contact with the lighting element 2, and another portion of the plane 411 is located in the first inner hole 122. The heat dissipation capacity of this method will be relatively weak.

[0040] In a further embodiment, the lighting element 2 is composed of a lamp board 21, which is a ring-shaped structure; one side of the lamp board 21 is provided with a plurality of LED lamps 22 wrapped in a lampshade 3, and the other side of the lamp board 21 is in contact with the plane 411.

[0041] A plurality of LED lights 22 are arranged in a circular array on the light board 21, and the number may be 6, 7, 8, or even more. The more LED lights 22 there are, the higher the brightness. The back of the light board 21 is in contact with the plane 411 of the heat sink 41, so that the heat generated by the light board 21 can be quickly removed through the contact between the heat sink 41 and the air, thereby cooling the light board 21.

[0042] In a further embodiment, a plurality of positioning holes 23 are provided on the light board 21 , and a plurality of positioning posts 123 are provided on the rear cover 12 ; the positioning posts 123 are disposed in the positioning holes 23 .

[0043] The number of the positioning holes 23 and the positioning columns 123 can be 3, 4, 5, etc. In the present embodiment, the number of the positioning holes 23 and the positioning columns 123 is 3. By cooperating with the positioning holes 23 and the positioning columns 123, the lamp board 21 will not be offset when installed in the housing 1.

[0044] In a further embodiment, the front cover 11 is an annular structure; the lampshade 3 is composed of an annular protrusion 31 and a connecting piece 32 arranged on the edge of the annular protrusion 31; the annular protrusion 31 is embedded in the second inner hole 111 of the front cover 11; and the connecting piece 32 is arranged on the front cover 11.

[0045] The front cover 11 and the lampshade 3 are both annular structures. The annular protrusion 31 of the lampshade 3 is set in the second inner hole 111 of the front cover 11, and its connecting piece 32 is connected to the connecting column on the front cover 11. The annular protrusion 31 can wrap around the multiple annularly distributed LED lights 22 on the lamp board 21.

[0046] In the above embodiment, since the front cover 11, the rear cover 12 and the lampshade 3 are all annular structures, and the lamp board 21 is annular, the middle part of the night light is hollowed out, and a part of the heat sink 41 penetrates into the hollow design, which can increase the contact area between the heat sink 41 and the air when in use. In addition, since the heat sink 41 is arranged on the back of the lamp board 21, it can block light and focus light when in use.

[0047] In a further embodiment, an indicator light 5 is disposed on the light board 21 ; a first through hole 124 for mounting the indicator light 5 is disposed on the rear cover 12 ; and the indicator light 5 is electrically connected to the light board 21 .

[0048] In a further embodiment, a switch 6 is provided on the light board 21 ; a second through hole 125 for installing the switch 6 is provided on the rear cover 12 ; and the switch 6 is electrically connected to the light board 21 .

[0049] In the above embodiment, the switch 6 and the indicator light 5 are both arranged on the back cover 12. When the switch 6 is pressed, the light board 21 is powered on, and the indicator light 5 and the LED light 22 on the light board 21 are both lit. When the switch 6 is pressed again, the light board 21 is powered off, and the indicator light 5 and the LED light 22 on the light board 21 are both turned off.

[0050] In a further embodiment, a rotatable USB connector 71 is provided at one end of the power cord 7, and a convex-shaped groove (not shown in the figure) is provided at the other end of the power cord 7; a limit block (not shown in the figure) corresponding to the groove (not shown in the figure) is provided between the front cover 11 and the rear cover 12; the limit block (not shown in the figure) is embedded in the groove (not shown in the figure).

[0051] The USB connector 71 can rotate, and the power cord 7 can also be twisted according to the required shape to achieve universal adjustment. The power cord 7 is firmly installed in the housing 1 through the cooperation of the groove (not shown) and the limit block (not shown).

[0052] In a further embodiment, the housing 1 further comprises a fastener 13, on which a buckle is provided; the front cover 11 and the rear cover 12 are constructed to form a corresponding buckle position; and the buckle is arranged in the buckle position.

[0053] A fastener 13 is provided between the front cover 11 and the rear cover 12 to fix them, so that the connection between the front cover 11 and the rear cover 12 is tighter and firmer, the connection between the internal components is more compact, and the organization and disassembly are more convenient by providing buckles and buckle positions.

[0054] In the above embodiment, by structurally designing the components, the night light as a whole presents a mecha shape, which not only has good heat dissipation capability but also takes into account the shape.

[0055] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A night light with heat dissipation function, characterized in that: It comprises a shell, a lighting element, a heat sink and a power cord; the shell comprises a front cover with a lampshade, and a rear cover; the front cover and the rear cover form a cavity in which the lighting element and the heat sink can be installed; one side of the lighting element is wrapped in the lampshade, the other side of the lighting element is in contact with the heat sink, and the heat sink is partially exposed from the rear cover; the power cord is arranged on the shell and is electrically connected to the lighting element.

2. The night light with heat dissipation function according to claim 1, characterized in that: The back cover is an annular structure; there are multiple heat dissipation mounting positions, which are distributed at equal angles on the back cover, and the heat dissipation mounting positions extend obliquely from the edge of the back cover to the first inner hole of the back cover; and at least one hollow hole is provided on the heat dissipation mounting position.

3. The night light with heat dissipation function according to claim 2, characterized in that: The heat sink includes a plurality of heat sink blocks respectively arranged on the heat sink mounting positions; at least a portion of one side of the heat sink is a plane, and another portion is a first inclined surface, on which a plurality of first protrusions distributed evenly are arranged; the other side of the heat sink is a second inclined surface, on which a plurality of second protrusions distributed evenly are arranged; a stopper is arranged at the edge of the plane.

4. The night light with heat dissipation function according to claim 3, characterized in that: The lighting element is composed of a lamp board, and the lamp board is a ring structure; one side of the lamp board is provided with a plurality of LED lamps wrapped in the lamp cover, and the other side of the lamp board is in contact with the plane.

5. The night light with heat dissipation function according to claim 4, characterized in that: The lamp board is provided with a plurality of positioning holes, and the back cover is provided with a plurality of positioning posts; the positioning posts are arranged in the positioning holes.

6. The night light with heat dissipation function according to claim 1, characterized in that: The front cover is an annular structure; the lampshade is composed of a circular protrusion and a connecting piece arranged on the edge of the circular protrusion; the circular protrusion is embedded in the second inner hole of the front cover; and the connecting piece is arranged on the front cover.

7. The night light with heat dissipation function according to claim 4, characterized in that: The light board is provided with an indicator light; the back cover is provided with a first through hole for installing the indicator light; the indicator light is electrically connected to the light board.

8. The night light with heat dissipation function according to claim 4, characterized in that: The light board is provided with a switch; the rear cover is provided with a second through hole for installing the switch; and the switch is electrically connected to the light board.

9. The night light with heat dissipation function according to claim 2, characterized in that: A rotatable USB connector is provided at one end of the power cord, and a convex groove is provided at the other end of the power cord; a limit block corresponding to the groove is provided between the front cover and the rear cover; and the limit block is embedded in the groove.

10. The night light with heat dissipation function according to claim 1, characterized in that: The housing further comprises a fastener, on which a buckle is arranged; the front cover and the rear cover are constructed to form a corresponding buckle position; the buckle is arranged in the buckle position.

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