DEVICE FOR EVAPORATING VOLATILE SUBSTANCES

Abstract

The device for evaporating volatile substances comprises a heater (1) which heats a wick (2) impregnated in said volatile substances and characterised in that said heater (1) is formed from a printed circuit board (10) provided with at least one resistor (11).

It allows a device for evaporating volatile substances to be provided which comprises a heater with a very low thermal mass which allows a rapid increase in the temperature and variation of the working cycles.

Claims

1. A device for evaporating volatile substances comprising a heater which heats a wick impregnated in said volatile substances, wherein said heater is formed from a printed circuit board provided with at least one resistor.

2. The device for evaporating volatile substances according to claim 1, wherein said printed circuit board also comprises a copper area.

3. The device for evaporating volatile substances according to claim 1, wherein said printed circuit board comprises grooves for the passage of stops.

4. The device for evaporating volatile substances according to claim 1, wherein the heater is joined to the wick by means of a support.

5. The device for evaporating volatile substances according to claim 3, wherein said stops meet with said support, aligning the heater with the wick.

6. The device for evaporating volatile substances according to claim 1, wherein said wick is flat.

7. The device for evaporating volatile substances according to claim 1, wherein the device further comprises a recipient with liquid with said volatile substances, said liquid impregnating the wick.

8. The device for evaporating volatile substances according to claim 1, wherein the device further comprises one or more sensors connected to the printed circuit board.

9. The device for evaporating volatile substances according to claim 8, wherein one of the said one or more sensors is a temperature, pressure, motion or presence sensor.

10. The device for evaporating volatile substances according to claim 1, wherein said printed circuit board is connected to an alternating current electric power source.

11. The device for evaporating volatile substances according to claim 1, wherein said printed circuit board is connected to a a microcontroller, a switch or a both a microcontroller and a switch.

12. The device for evaporating volatile substances according to claim 4, wherein said stops meet with said support, aligning the heater with the wick.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To better understand the foregoing, a set of drawings is accompanied in which a practical embodiment is represented schematically and only by way of non-limiting example.

[0025] FIG. 1 is a perspective view of the device for evaporating volatile substances according to the present invention without its exterior casing;

[0026] FIG. 2 is a sectional elevation view of the device for evaporating volatile substances of FIG. 1;

[0027] FIGS. 3 and 4 are front and rear views of the printed circuit board of the heater of the device for evaporating volatile substances according to the present invention;

[0028] FIG. 5 is a plan view of the device for evaporating volatile substances according to the present invention with its exterior casing, wherein the stops are shown in contact with the support of the wick.

DESCRIPTION OF A PREFERRED EMBODIMENT

[0029] As is shown in FIGS. 1 and 2, the device for evaporating volatile substances comprises a heater 1 which heats a wick 2, causing the evaporation of the volatile substances.

[0030] One part of the wick 2 is placed in the interior of a recipient 5 containing a liquid with the volatile substances such that said liquid impregnates the wick 2 for the evaporation of the volatile substances when heated by means of the heater 1.

[0031] The wick 2 is flat and thin for transporting the liquid which is evaporated in the air by capillary action. The wick 2 has both sides exposed to allow the evaporation of the volatile substances from any side.

[0032] As can be seen in greater detail in FIGS. 3 and 4, the heater 1 is formed from a printed circuit board 10 which is connected to an alternating current electric power source and comprises at least one resistor 11 and can have one or several copper areas.

[0033] As is seen in these figures, the resistors 11 are arranged on the face oriented towards the wick 2, while the copper areas 12 are arranged on the opposing face.

[0034] This printed circuit board 10 also comprises temperature control means, such as a switch and/or a microcontroller, connected to an alternating/direct current power source without a transformer to control the heating service cycles.

[0035] These heating cycles allow a rapid acceleration of the temperature in the impregnated wick, from the inactive state, for more rapid evaporation of the volatile substances and to prevent the habituation to the fragrances of the volatile substances.

[0036] If desired, the printed circuit board 10 could comprise at least one sensor to detect various aspects such as the presence of the wick 2, the temperature, light, a printed barcode or any other identification by optical means or another type.

[0037] To ensure the correct placement of the wick 2 with respect to the heater 1, the wick 2 is mounted in a support 4 which, in the represented embodiment, is formed by two pieces with U-shaped section.

[0038] In turn, the printed circuit board 10 comprises grooves 13 for the placement of stops 3 which, in the assembled position, are in contact with the support 4 of the wick 2, as can be seen in FIG. 5.

[0039] The functioning of the device for evaporating volatile substances according to the present invention is the following:

[0040] When a user wishes to use the evaporation device, they should connect it to the power source, such as the conventional power network, for example by means of a plug of the device itself which is not shown in the figures.

[0041] Owing to the presence of the resistors 11 on the printed circuit board 10, the heater is rapidly heated to heat the part of the wick 2 with respect to said resistors 11 and cause the evaporation of the volatile substances.

[0042] Additionally, the user can control the working cycles of the evaporation device by means of the controller of the printed circuit board 10 or equally, to prevent the user from becoming habituated to the fragrance of said volatile substances.

[0043] In spite of the fact that reference has been made to a specific embodiment of the invention, it is evident to a person skilled in the art that the device for evaporating volatile substances described is capable of having numerous variations and modifications and that all the details mentioned can be substituted for others which are technically equivalent without departing from the scope of protection defined by the enclosed claims.