Fragrance dispenser and a heating, ventilation, and air conditioning system having such a fragrance dispenser

Patent metadata

Field	Value
Publication number	US-9919070-B2
Application number	US-201615239898-A
Country	US
Kind code	B2
Filing date	Aug 18, 2016
Priority date	Sep 9, 2015
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

A fragrance dispenser, in particular for a heating, ventilation, and air conditioning system, with a fragrance container with a connection opening and with a container cover with an air inlet channel and an air outlet channel, further, with a movable operating element, and a movable valve element by means of which the air inlet channel and the air outlet channel can be opened and closed, wherein the valve element can be actuated by the operating element, and wherein further a bypass channel can be controlled by the operating element.

First claim

What is claimed is:

1. A fragrance dispenser for a heating, ventilation, and air conditioning system, the fragrance dispenser comprising:
a fragrance container with a connection opening;
a container cover with an air inlet channel and an air outlet channel;
a movable operating element;
a movable valve element via which the air inlet channel and the air outlet channel is opened and closed, the valve element being adapted to be actuated by the operating element; and
a bypass channel adapted to be controlled by the movable operating element.

2. The fragrance dispenser according to claim 1 , wherein the operating element and the valve element are arranged axially one behind the other and axially slidable at least partially in a guide sleeve, and wherein the air inlet channel and the air outlet channel are arranged adjacent and substantially parallel to a longitudinal axis of the guide sleeve.

3. The fragrance dispenser according to claim 1 , wherein the bypass channel has a first bypass channel element and a second bypass channel element, wherein the first bypass channel element is formed on the operating element and the second bypass channel element is formed on the guide sleeve.

4. The fragrance dispenser according to claim 3 , wherein the bypass channel is opened or closed for fluid throughflow via an axial movement of the operating element made relative to the guide sleeve.

5. The fragrance dispenser according to claim 3 , wherein the first bypass channel element has a circumferential first annular groove situated on the operating element and the second bypass channel element has at least one bypass inlet opening arranged radially on the guide sleeve and at least one bypass outlet opening arranged radially on the guide sleeve.

6. The fragrance dispenser according to claim 3 , wherein the first bypass element has a channel passing through the operating element substantially perpendicular to the longitudinal axis of the operating element.

7. The fragrance dispenser according to claim 1 , wherein the air inlet channel has a first air inlet channel opening at a first air inlet channel end pointing toward the fragrance container, and wherein the air outlet channel has a first air outlet channel opening at a first air outlet channel end pointing toward the fragrance container, and wherein the valve element has a valve disc at a first valve element end pointing toward the fragrance container, and wherein via an axial movement of the valve element and the valve disc, the first air inlet channel opening and the first air outlet channel opening are opened or closed for throughflow of a fluid.

8. The fragrance dispenser according to claim 1 , wherein the valve element is loaded by at least one first return spring in a first direction pointing away from the fragrance container toward a first operating element end pointing toward the fragrance container.

9. The fragrance dispenser according to claim 1 , wherein the at least one first return spring is supported against a bridge element, and wherein the bridge element is connected to a first container cover side pointing toward the fragrance container.

10. The fragrance dispenser according to claim 1 , wherein the operating element is loaded by a second return spring in the first direction toward a first guide sleeve end.

11. The fragrance dispenser according to claim 1 , wherein the second return spring is supported against a counter support formed in the area of a second valve element end pointing toward the operating element.

12. The fragrance dispenser according to claim 1 , wherein a circumferential projection is formed at the first operating element end, wherein the circumferential projection is supported against a shoulder formed in the area of the first guide sleeve end.

13. The fragrance dispenser according to claim 1 , wherein the container cover has connectors via which the air inlet channel and/or the air outlet channel and/or the bypass inlet opening and/or the bypass outlet opening are attachable to a fluid channel arrangement and/or a tube arrangement of a heating, ventilation, and air conditioning system.

14. The fragrance dispenser according to claim 1 , wherein the fragrance container has an edge pointing toward the container cover, wherein at least one radially arranged circumferential second annular groove is formed on the edge, wherein at least one first O-ring, which lies against a cover inner wall formed by the container cover in a radially inwardly sealing manner is disposed in an area of the at least one second annular groove.

15. The fragrance dispenser according to claim 1 , wherein the valve element in the area of the second valve element end has at least one radially arranged circumferential third annular groove, wherein at least one second O-ring, which lies against a sleeve inner wall formed by the guide sleeve in a radially inwardly sealing manner, is disposed in the area of the at least one third annular groove.

16. The fragrance dispenser according to claim 1 , wherein the container cover has at least one first connecting element and the fragrance container has at least one second connecting element corresponding to the first connecting element, wherein the container cover and the fragrance container are connectable together by the two connecting elements.

17. The fragrance dispenser according to claim 1 , wherein the at least one first connecting element and the at least one second connecting element form a clip and/or a plug connection.

18. The fragrance dispenser according to claim 1 , wherein the container cover has at least one first attachment element, which corresponds to a second attachment element disposed on a housing element of a heating, ventilation, and air conditioning system such that the first attachment element and the second attachment element are connected together.

19. The fragrance dispenser according to claim 1 , wherein the first attachment element and the second attachment element are connected to form a bayonet catch.

20. The fragrance dispenser according to claim 1 , wherein the container cover on a second container cover side, lying opposite to the first container cover side, has a substantially centrally disposed attachment region, and wherein the operating element and the guide sleeve are arranged centrally within the attachment region.

21. The fragrance dispenser according to claim 1 , wherein the attachment region has an inner tube connection and an outer tube connection radially surrounding the inner tube connection, wherein the operating element and the guide sleeve are arranged centrally within the inner tube connection and substantially perpendicular to a plane formed by the cross section of the inner tube connection.

22. The fragrance dispenser according to claim 1 , wherein the air inlet channel has a second air inlet channel end lying opposite to the first air inlet channel end, and wherein the air outlet channel has a second air outlet channel end lying opposite to the first air outlet channel end, and wherein the second air inlet channel end and the second air outlet channel end are arranged radially between the inner tube connection and the outer tube connection.

23. A heating, ventilation, and air conditioning system, wherein at least one fragrance dispenser according to claim 1 is disposed in the heating, ventilation, and air conditioning system.

24. A heating, ventilation, and air conditioning system, wherein two fragrance dispensers acco

Assignees

• Mahle Int Gmbh

Inventors

• Rappel Thomas

Classifications

• B01F3/0446

  Operations & Transport · mapped topic

• B60H3/0007

  Adding substances other than water to the air, e.g. perfume, oxygen · CPC title

• A61L2209/133

  Replaceable cartridges, refills · CPC title

• A61L2209/16

  Connections to a HVAC unit · CPC title

• B01F3/04099

  Operations & Transport · mapped topic