Lava lamp

Abstract

The utility model discloses a lava lamp which comprises a base, a light source, a wax bottle and a PTC (Positive Temperature Coefficient) constant-temperature heating sheet at the bottom of the wax bottle. Wherein the light source is installed in the base and emits light towards the wax bottle, the PTC constant-temperature heating piece is installed at the bottom of the wax bottle and used for heating the wax bottle, constant-temperature heating is achieved, and it is guaranteed that the lava lamp generates the stable floating effect. The slow and flowing wax effect and the soft light of the lava lamp can help create a quiet and relaxed environment, and the artistic sense of the environment is increased.

Description

Technical Field

[0001] The utility model relates to the field of lamps, in particular to a lava lamp. Background Art

[0002] Lava lamps are also called jellyfish lamps or wax lamps. It looks like there is lava flowing inside the glass bottle. The principle is to use simple thermodynamic principles to make liquid wax move up and down in a sealed glass bottle like lava, forming a magical light and shadow effect.

[0003] A lava lamp generally has a light bulb at the bottom and a transparent container on top. The transparent container is filled with liquid and wax solids whose density changes with temperature. When the light bulb is lit, heat is generated and transferred from the bottom to the transparent container. The wax at the bottom of the transparent container melts and gradually becomes lighter after being heated, and then slowly rises. When it reaches the top and cools down slightly, it slowly falls down, thus producing a floating effect. Since it takes a certain amount of time for the light bulb to emit light and gather heat, it is not possible to quickly heat the wax bottle to produce a floating effect, and the startup time is long. Therefore, a heating coil is installed in the existing lava lamp to speed up the heating. When heating is performed by the heating coil, the highest and lowest temperatures of the heating coil are inconvenient to control, and it is difficult to ensure that the lava lamp produces a stable floating effect when heated. Utility Model Content

[0004] The main purpose of the utility model is to provide a lava lamp, which aims to achieve constant temperature heating and produce a stable floating effect.

[0005] The utility model provides a lava lamp, comprising a base, a light source installed in the base, a wax bottle connected to the base and filled with liquid wax, and a heating element installed at the bottom of the wax bottle, the light source emits light toward the wax bottle, the heating element is a PTC constant temperature heating sheet, and the heating element is assembled with an upper heat conductive cover and / or a lower heat conductive cover to combine heat conduction.

[0006] Preferably, the PTC constant temperature heating sheet is bonded to the bottom of the wax bottle by means of thermally conductive adhesive, and the thermally conductive adhesive has good thermal conductivity.

[0007] Preferably, an upper heat-conducting cover is installed on the upper part of the PTC constant temperature heating sheet, the PTC constant temperature heating sheet is bonded to one side of the upper heat-conducting cover by heat-conducting glue, and the other side of the upper heat-conducting cover is bonded to the bottom of the wax bottle by heat-conducting glue, thereby increasing the heat-conducting area by the upper heat-conducting cover.

[0008] Preferably, the upper heat-conducting cover is provided with a mounting groove adapted to the PTC constant temperature heating sheet, and the PTC constant temperature heating sheet is installed in the mounting groove.

[0009] Preferably, the PTC constant temperature heating sheet is installed in the lower heat-conducting cover, the lower heat-conducting cover comprises a mounting groove for mounting the PTC constant temperature heating sheet and a heat-conducting annular surface extending outwardly along the edge of the mounting groove, the lower end surface of the PTC constant temperature heating sheet is bonded to the lower heat-conducting cover by heat-conducting adhesive, and the upper end surface of the PTC constant temperature heating sheet and the heat-conducting annular surface are bonded to the bottom of the wax bottle by heat-conducting adhesive. The heat-conducting area is increased by the lower heat-conducting cover.

[0010] Preferably, it comprises an upper heat-conducting cover and a lower heat-conducting cover installed at the bottom of the wax bottle, the upper heat-conducting cover is provided with an upper mounting groove, the PTC constant temperature heating sheet is installed in the upper mounting groove; the lower heat-conducting cover comprises a lower mounting groove and a heat-conducting annular surface extending outwardly along the edge of the lower mounting groove, the lower heat-conducting cover covers the upper heat-conducting cover, the upper heat-conducting cover and the PTC constant temperature heating sheet located in the upper mounting groove are placed in the lower mounting groove, the upper end surface of the PTC constant temperature heating sheet is attached to the upper heat-conducting cover, the lower end surface of the PTC constant temperature heating sheet is attached to the lower heat-conducting cover, and the upper heat-conducting cover and the heat-conducting annular surface are attached to the bottom surface of the wax bottle. The heat-conducting area is increased by combining the upper heat-conducting cover and the lower heat-conducting cover.

[0011] Preferably, a bracket is provided in the base, a light source mounting plate is mounted on the bracket, an insulating plate is mounted in the light source mounting plate, the light source is an LED light source board with a linear constant current drive circuit, and the LED light source board is mounted in the insulating plate.

[0012] The beneficial effects of the utility model are:

[0013] The lava lamp of the utility model comprises a base, a light source, a wax bottle and a PTC constant temperature heating sheet at the bottom of the wax bottle. The light source is installed inside the base and emits light toward the wax bottle, and the PTC constant temperature heating sheet is installed at the bottom of the wax bottle to heat the wax bottle, thereby achieving constant temperature heating and ensuring that the lava lamp produces a stable floating effect. The slow and flowing wax effect and soft light of the lava lamp can help create a quiet and relaxing environment and increase the artistic sense of the environment.

[0014] The heating element is assembled with the upper heat-conducting cover and / or the lower heat-conducting cover, and the heat conduction is combined to increase the heat conduction area, so as to quickly conduct heat to the wax bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of a lava lamp in an embodiment of the present utility model.

[0016] Figure 2 It is a schematic diagram of the structural decomposition of a lava lamp in an embodiment of the utility model.

[0017] Figure 3It is a structural schematic diagram of the light source assembly of the lava lamp in the embodiment of the utility model.

[0018] Figure 4 This is a schematic diagram of the structure in which a PTC constant temperature heating plate is installed at the bottom of a wax bottle in an embodiment of the utility model.

[0019] Figure 5 It is a structural schematic diagram of a PTC constant temperature heating sheet combined with a heat conductive cover installed at the bottom of a wax bottle in an embodiment of the utility model.

[0020] Figure 6 It is a schematic diagram of the assembly of the wax bottle, the upper heat-conducting cover, and the PTC constant temperature heating plate in the embodiment of the utility model.

[0021] Figure 7 It is a structural schematic diagram of a PTC constant temperature heating plate combined with a lower heat conductive cover installed at the bottom of a wax bottle in an embodiment of the utility model.

[0022] Figure 8 It is a schematic diagram of the assembly of the wax bottle, the PTC constant temperature heating sheet and the lower heat conductive cover in the embodiment of the utility model.

[0023] Fig. 9 It is a schematic diagram of the assembly of the PTC constant temperature heating sheet, the lower heat conductive cover and the lower heat conductive cover in the embodiment of the utility model.

[0024] Fig.10 It is a schematic structural diagram of a PTC constant temperature heating sheet combined with a lower heat conductive cover and a lower heat conductive cover in an embodiment of the utility model.

[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] Reference Figures 1 to 10 , an embodiment of the lava lamp of the utility model is proposed:

[0028] A lava lamp comprises a base 2, a light source 3 installed in the base 2, a wax bottle 1 connected to the base 2 and filled with liquid wax, and a heating element installed at the bottom of the wax bottle 1, the light source 2 emits light toward the wax bottle 1, and the heating element is a PTC constant temperature heating sheet 4. Figure 4 As shown, the PTC constant temperature heating sheet 4 is installed at the bottom of the wax bottle 1 to heat the wax bottle, achieving constant temperature heating, ensuring that the lava lamp produces a stable floating effect. The slow and flowing wax effect and soft light of the lava lamp can help create a peaceful and relaxing environment and increase the artistic sense of the environment.

[0029] A U-shaped bracket 7 made of metal is provided in the base 2, and the U-shaped bracket 7 is fixed in the base 2 by screw connection. A light source mounting plate 8 made of metal is installed on the bracket 7, and an insulating plate 9 is installed in the light source mounting plate 8. The light source 3 is an LED light source board with a linear constant current drive circuit, and the LED light source board is installed in the insulating plate 9 to form a light source assembly. The insulating plate 9 is made of PVC and is used for insulation. It can prevent safety hazards caused by leakage of the LED light source board and ensure the safe operation of the electrical assembly.

[0030] The area at the bottom of the wax bottle 1 that is not covered by the PTC constant temperature heating plate 4 is a light-transmitting area for transmitting light. The light emitted by the LED light source board is emitted into the wax bottle 1 from the light-transmitting area.

[0031] The thermal conductive adhesive has a good thermal conductive effect. The PTC constant temperature heating sheet 4 is usually bonded to the bottom of the wax bottle by the thermal conductive adhesive to provide a better thermal conductive effect.

[0032] In order to increase the heat conduction area and quickly conduct heat to the wax bottle, the following three design solutions are provided:

[0033] In one embodiment, if Figure 5 , 6 As shown, an upper heat-conducting cover 5 is installed on the upper part of the PTC constant temperature heating sheet 4, and a mounting groove 51 adapted to the PTC constant temperature heating sheet 4 is provided on the upper heat-conducting cover 5, and the PTC constant temperature heating sheet 4 is installed in the mounting groove 51. The PTC constant temperature heating sheet 4 is bonded to one side of the upper heat-conducting cover 5 by heat-conducting adhesive, and the other side of the upper heat-conducting cover 5 is bonded to the bottom of the wax bottle 1 by heat-conducting adhesive, and the heat-conducting area is increased by the upper heat-conducting cover 5, so that heat is quickly transferred to the wax bottle 1.

[0034] In the second embodiment, Figure 7 , 8 As shown, the PTC constant temperature heating plate 4 is installed in the lower heat-conducting cover 6, and the lower heat-conducting cover 6 includes a mounting groove 61 for mounting the PTC constant temperature heating plate 4 and a heat-conducting annular surface 62 extending outward along the edge of the mounting groove 61. The lower end surface of the PTC constant temperature heating plate 4 is bonded to the lower heat-conducting cover 6 by heat-conducting adhesive, and the upper end surface of the PTC constant temperature heating plate 4 and the heat-conducting annular surface 62 are bonded to the bottom of the wax bottle 1 by heat-conducting adhesive. The heat-conducting area is increased by the lower heat-conducting cover 6, and heat is quickly transferred to the wax bottle 1. Moreover, the lower heat-conducting cover 6 covers the PTC constant temperature heating plate 4 to protect it. The lower heat-conducting cover 6 is provided with a wire hole 63, and the wires connected to the PTC constant temperature heating plate 4 pass through the wire hole 63.

[0035] In the third embodiment, Fig. 9 , 10As shown, an upper heat-conducting cover 5 and a lower heat-conducting cover 6 are provided, and an upper mounting groove is provided on the upper heat-conducting cover 5, and the PTC constant temperature heating sheet 4 is installed in the upper mounting groove; the lower heat-conducting cover 6 includes a lower mounting groove 61 and a heat-conducting annular surface 62 extending outward along the edge of the lower mounting groove 61, and the lower heat-conducting cover 6 covers the upper heat-conducting cover 5. The upper heat-conducting cover 5 and the PTC constant temperature heating sheet 4 located in the upper mounting groove are placed in the lower mounting groove 61, and the upper end surface of the PTC constant temperature heating sheet 4 is attached to the upper heat-conducting cover 5, and the lower end surface of the PTC constant temperature heating sheet 4 is attached to the lower heat-conducting cover 6, and the upper heat-conducting cover 5 and the heat-conducting annular surface 62 are attached to the bottom surface of the wax bottle 1. The heat-conducting area is increased by combining the upper heat-conducting cover 5 and the lower heat-conducting cover 6, and the heat is quickly transferred to the wax bottle. A wire hole 63 is provided on the lower heat-conducting cover 6, and the wires connected to the PTC constant temperature heating sheet 4 pass through the wire hole 63.

[0036] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A lava lamp, comprising a base, a light source installed in the base, a wax bottle connected to the base and filled with liquid wax, and a heating element installed at the bottom of the wax bottle, wherein the light source emits light toward the wax bottle, characterized in that: The heating element is a PTC constant temperature heating sheet, and the heating element is assembled with the upper heat conductive cover and / or the lower heat conductive cover to conduct heat.

2. The lava lamp according to claim 1, characterized in that: The PTC constant temperature heating sheet is bonded to the bottom of the wax bottle by heat conductive adhesive.

3. The lava lamp according to claim 1, characterized in that: An upper heat-conducting cover is installed on the upper part of the PTC constant temperature heating sheet. The PTC constant temperature heating sheet is bonded to one side of the upper heat-conducting cover by heat-conducting adhesive, and the other side of the upper heat-conducting cover is bonded to the bottom of the wax bottle by heat-conducting adhesive.

4. The lava lamp according to claim 3, characterized in that: The upper heat-conducting cover is provided with a mounting groove adapted to the PTC constant temperature heating sheet, and the PTC constant temperature heating sheet is installed in the mounting groove.

5. The lava lamp according to claim 1, characterized in that: The PTC constant temperature heating sheet is installed in the lower heat-conductive cover, and the lower heat-conductive cover includes an installation groove for installing the PTC constant temperature heating sheet and a heat-conductive ring surface extending outward along the edge of the installation groove. The lower end surface of the PTC constant temperature heating sheet is bonded to the lower heat-conductive cover by heat-conductive glue, and the upper end surface of the PTC constant temperature heating sheet and the heat-conductive ring surface are bonded to the bottom of the wax bottle by heat-conductive glue.

6. The lava lamp according to claim 1, characterized in that: It comprises an upper heat-conducting cover and a lower heat-conducting cover which are installed at the bottom of the wax bottle, the upper heat-conducting cover is provided with an upper mounting groove, and the PTC constant temperature heating sheet is installed in the upper mounting groove; the lower heat-conducting cover comprises a lower mounting groove and a heat-conducting annular surface which is formed by extending outward along the edge of the lower mounting groove, the lower heat-conducting cover covers the upper heat-conducting cover, the upper heat-conducting cover and the PTC constant temperature heating sheet located in the upper mounting groove are placed in the lower mounting groove, the upper end surface of the PTC constant temperature heating sheet is fitted with the upper heat-conducting cover, the lower end surface of the PTC constant temperature heating sheet is fitted with the lower heat-conducting cover, and the upper heat-conducting cover and the heat-conducting annular surface are fitted with the bottom surface of the wax bottle.

7. The lava lamp according to any one of claims 1 to 6, characterized in that: A bracket is provided in the base, a light source mounting plate is mounted on the bracket, an insulating plate is mounted in the light source mounting plate, the light source is an LED light source board with a linear constant current drive circuit, and the LED light source board is mounted in the insulating plate.

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