Air conditioner for vehicle

Patent metadata

Field	Value
Publication number	US-11623496-B2
Application number	US-201916293863-A
Country	US
Kind code	B2
Filing date	Mar 6, 2019
Priority date	Mar 7, 2018
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

The present invention relates to an air conditioner for a vehicle having a cover of an improved structure which can prevent foreign matters from being introduced into a sliding door driving part and also prevent the introduced foreign matters from being stuck in the driving part. The air conditioner for a vehicle, which includes an air-conditioning case having a heat exchanger, and a first door and a second door disposed in the air-conditioning case to adjust the degree of opening of an air passageway, further includes: a plurality of driving parts for interlocking and operating the first door and the second door; and a cover part for fixing the driving part to the air-conditioning case. The cover part covers at least one among the plurality of driving parts.

First claim

What is claimed is:

1. An air conditioner for a vehicle, which includes an air-conditioning case having a heat exchanger, and a first door and a second door disposed in the air-conditioning case to adjust a degree of opening of an air passageway, the air conditioner comprising:
a plurality of driving parts for interlocking and operating the first door and the second door;
a cover part for fixing the plurality of the driving parts to the air-conditioning case, wherein the cover part covers at least one among the plurality of the driving parts;
a first shaft connected to the first door to move the first door according to rotation;
a second shaft connected to the second door to move the second door according to rotation;
a rack gear for connecting the first shaft and the second shaft with each other, wherein the cover part covers at least one among the first shaft and the second shaft, and
a support part protruding on an outer face of the air-conditioning case to support the rack gear,
wherein the support part has a space part formed between the outer face of the air-conditioning case and the rack gear in order to reduce a contact surface between the support part and the rack gear when the rack gear slides.

2. The air conditioner according to claim 1 , wherein the support part includes a first wall member and a second wall member spaced apart from each other in a sliding direction of the rack gear.

3. The air conditioner according to claim 2 , wherein the rack gear includes: a first rack gear part geared with the first shaft to be slidable; a second rack gear part geared with the second shaft to be slidable; and a bridge part for connecting the first rack gear part and the second rack gear part with each other, and
wherein the first wall member and the second wall member are inclined to be aligned with the inclined direction of the bridge part.

4. The air conditioner according to claim 3 , wherein the support part includes a third wall member and a fourth wall member formed to be aligned with the sliding direction of the rack gear to respectively support the first rack gear part and the second rack gear part.

5. The air conditioner according to claim 1 , wherein the cover part and the guide part get in surface contact with each other.

6. The air conditioner according to claim 1 , wherein the cover part has a through hole formed at a portion corresponding to at least one among the first shaft and the second shaft so that a shaft of a power source penetrates through the through hole.

7. The air conditioner according to claim 1 , wherein the cover part includes an interference avoiding groove formed in a portion corresponding to the assembly boss formed in the air-conditioning case to prevent interference that may occur when the air-conditioning case and the cover unit are combined.

8. The air conditioner according to claim 7 , wherein the rack gear includes: a first rack gear part geared with the first shaft to be slidable; a second rack gear part geared with the second shaft to be slidable; and a bridge part for connecting the first rack gear part and the second rack gear part with each other, and
wherein the interference avoiding groove is inclined corresponding to the shape of the bridge part to support the bridge.

9. The air conditioner according to claim 1 , wherein the first door and the second door are spaced apart from each other, and are temp doors to adjust the degree of opening of an air passageway passing through a heat exchanger for heating and an air passageway bypassing the heat exchanger for heating.

10. The air conditioner according to claim 1 , further comprising:
a guide part formed to protrude on the outer face of the air-conditioning case to support the cover part.

11. An air conditioner for a vehicle, which includes an air-conditioning case having a heat exchanger, and a first door and a second door disposed in the air-conditioning case to adjust the degree of opening of an air passageway, the air conditioner comprising:
a plurality of driving parts for interlocking and operating the first door and the second door; and
a cover part for fixing the plurality of the driving parts to the air-conditioning case, wherein the cover part covers at least one among the plurality of the driving parts;
a first shaft connected to the first door to slidably move the first door according to rotation;
a rack gear connected to the first shaft;
a second shaft connected to the second door to slidably move the second door according to rotation; and
a third shaft for connecting the rack gear and the second shaft with each other to transfer driving power,
wherein the cover part covers all of the first shaft, the second shaft, the third shaft, and the rack gear.

12. The air conditioner according to claim 11 , wherein the cover part has a first through hole formed to correspond to the first shaft connected with the power source.

13. The air conditioner according to claim 11 , wherein the cover part has a second through hole for exposing a part of the second shaft to an outside of the cover part.

14. The air conditioner according to claim 11 , wherein the cover part includes:
a straight part for accommodating the rack gear and securing a sliding space;
a first shaft accommodating part for accommodating the first shaft;
a second shaft accommodating part for accommodating the second shaft; and
a third shaft accommodating part for accommodating the third shaft.

15. The air conditioner according to claim 14 , wherein the second shaft accommodating part and the third shaft accommodating part are extended integrally.

16. The air conditioner according to claim 14 , wherein the cover part further includes:
a reinforcing part for connecting the first shaft accommodating part and the second shaft accommodating part with each other; and
a space part formed between the reinforcing part and the straight part.

17. An air conditioner for a vehicle, which includes an air-conditioning case having a heat exchanger, and a first door and a second door disposed in the air-conditioning case to adjust a degree of opening of an air passageway, the air conditioner comprising:
a plurality of driving parts for interlocking and operating the first door and the second door; a cover part for fixing the plurality of the driving parts to the air-conditioning case,
wherein the cover part covers at least one among the plurality of the driving parts;
a first shaft connected to the first door to move the first door according to rotation;
a second shaft connected to the second door to move the second door according to rotation;
a rack gear for connecting the first shaft and the second shaft with each other, wherein the cover part covers at least one among the first shaft and the second shaft,
a support part protruding on an outer face of the air-conditioning case to support the rack gear, wherein the support part has a space part formed between the outer face of the air-conditioning case and the rack gear; and
wherein the support part includes a first wall member and a second wall member spaced apart from each other in a sliding direction of the rack gear to support the rack gear.

Assignees

• Hanon Systems

Inventors

• Kang In Keun
• Ko Jae Woo
• Kim Young Keun
• Lee Jong Min
• Han Gyu Ik

Classifications

• B60H1/00857 Primary

  characterised by the means connecting the initiating means, e.g. control lever, to the damper door · CPC title

• B60H1/00692 Primary

  Damper doors moved by translation, e.g. curtain doors · CPC title

• B60H1/00421

  Driving arrangements for parts of a vehicle air-conditioning (B60H1/3222 takes precedence) · CPC title

• B60H2001/007

  Manufacturing or assembling · CPC title