Heat insulation door and refrigeration appliance with the heat insulation door

• US 10,302,348 B2
• Filed: 12/08/2017
• Issued: 05/28/2019
• Est. Priority Date: 12/12/2016
• Status: Active Grant

• Current Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Original Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Inventors: Lv, Ping, Xu, Yaoguo, Zhang, Chuan
• Primary Examiner(s): Rohrhoff, Daniel J
• Application Number:
  US15/835,550
• Publication Number:
  US 20180164023A1
• Time in Patent Office: 536 Days
• CPC Class Codes: A47F 3/0434 Glass or transparent panels
• CPC Class Codes: F25D 2201/14 using subatmospheric pressure
• CPC Class Codes: F25D 23/02 Doors; Covers F25D23/08 takes precedence locks or fastenings E05B65/0042
• CPC Class Codes: F25D 23/087 Sealing strips
• CPC Class Codes: F25D 2323/023 Door in door constructions
• CPC Class Codes: F25D 2400/18 Aesthetic features
• CPC Class Codes: Y02B 40/00 Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

A heat insulation door of a refrigeration appliance has a door body with a heat insulation glass module, which includes at least two layers of glass plates disposed with an interval, and a first sealing portion is disposed between the edges of the adjacent glass plates to form an enclosed heat insulation space between the adjacent glass plates; a doorframe surrounds an edge of the heat insulation glass module along a circumferential direction, wherein the doorframe has a rear frame portion located at the back of the heat insulation glass module along a front-to-rear direction of a door, and a door sealing strip is provided at the back of the rear frame portion. Along a direction parallel to the door body, the door sealing strip is at least partially located on an inner side of the first sealing portion located on a same edge.

Claims

1. A heat insulation door for a refrigeration appliance, the heat insulation door comprising:

a door body having a heat insulation glass module, the heat insulation glass module including at least two glass plates disposed with an interval therebetween, and a first sealing portion being disposed between edges of adjacent glass plates of the at least two glass plates for forming an enclosed heat insulation space between the adjacent glass plates; and

a doorframe surrounding an edge of the heat insulation glass module along a circumferential direction, the doorframe having a rear frame portion located at the back of the heat insulation glass module along a front-to-rear direction of a door, and a door sealing strip provided at the back of the rear frame portion;

the door sealing strip, along a direction parallel to the door body, being at least partially located on an inner side of the first sealing portion located on a same edge of the sealing strip.

2. The heat insulation door according to claim 1, wherein the first sealing portion has an annular shape that surrounds the heat insulation glass module;

and

along the front-to-rear direction, a projection of the door sealing strip is located within an annular shape formed by a projection of the first sealing portion.

3. The heat insulation door according to claim 1, wherein along the direction parallel to the door body, there is an interval between the door sealing strip and the first sealing portion located on a same edge of the sealing strip.

4. The heat insulation door according to claim 1, wherein the heat insulation glass module includes at least one of a vacuum glass module or a hollow glass module.

5. The heat insulation door according to claim 1, wherein the door body further comprises:

a front door panel located in front of the heat insulation glass module disposed with an interval from the heat insulation glass module; and

a second sealing portion disposed between the edge of the heat insulation glass module and the front door panel to form an enclosed heat insulation space between the front door panel and the heat insulation glass module.

6. The heat insulation door according to claim 5, wherein along the front-to-rear direction of the door, projections of the second sealing portion and a first sealing portion located at a same edge of the second sealing portion are at least partially overlapped.

7. The heat insulation door according to claim 5, wherein along the direction parallel to the door body, the door sealing strip is at least partially located on an inner side of the second sealing portion located on a same edge of the sealing strip.

8. The heat insulation door according to claim 5, wherein in at least one of a width or length direction of the door body, the front door panel has a protruding portion that extends out of the edge of the heat insulation glass module.

9. The heat insulation door according to claim 8, wherein the doorframe includes:

a first cooperative wall, located in front of the rear frame portion and at the back of the protruding portion, wherein the first cooperative wall is connected to the protruding portion;

a second cooperative wall, disposed at the rear frame portion facing the heat insulation glass module; and

a connecting wall that connects the first cooperative wall and the second cooperative wall along the front-to-rear direction, and the heat insulation glass module is located between the first cooperative wall and the second cooperative wall.

10. The heat insulation door according to claim 9, wherein the heat insulation glass module is directly or indirectly connected to the second cooperative wall.

11. The heat insulation door according to claim 9, wherein the protruding portion completely shields the doorframe along the front-to-rear direction of the door.

12. The heat insulation door according to claim 9, wherein the door body is provided with a sealing portion at edges of two adjacent layer structures having an interval, and projections of sealing portions along the front-to-rear direction are overlapped with each other.

13. The heat insulation door according to claim 12, wherein the second cooperative wall covers the sealing portion.

14. The heat insulation door according to claim 5, wherein the front door panel is a colorful crystal glass plate.

15. The heat insulation door according to claim 1, wherein the door body includes:

a rear protective layer disposed at the back of the heat insulation glass module.

16. The heat insulation door according to claim 15, wherein:

the rear protective layer is disposed with an interval from the heat insulation glass module; and

a third sealing portion is disposed between the edge of the heat insulation glass module and the rear protective layer to form an enclosed heat insulation space between the heat insulation glass module and the rear protective layer.

17. The heat insulation door according to claim 16, wherein, along the direction parallel to the door body, the door sealing strip is at least partially located on an inner side of the third sealing portion located on a same edge of the sealing strip.

18. The heat insulation door according to claim 16, wherein, along the front-to-rear direction of the door, projections of the third sealing portion and a first sealing portion located at a same edge of the second sealing portion are at least partially overlapped.

19. The heat insulation door according to claim 15, wherein the rear protective layer is a toughened glass plate, a glass plate, or a plastic plate.

20. The heat insulation door according to claim 1, wherein the rear frame portion includes at least one enclosed heat insulation cavity;

and

the heat insulation cavity is located between the door sealing strip and the heat insulation glass module along the front-to-rear direction, or is located on an inner side of the door sealing strip along the direction parallel to the door body.

21. The heat insulation door according to claim 20, wherein the rear frame portion is provided with a mounting slot for fixing the door sealing strip and a wall for separating the heat insulation cavity from the mounting slot.

22. The heat insulation door according to claim 1, wherein the rear frame portion and the door body are bonded by glue, an inner end of the rear frame portion is provided with a bulge on a side facing the heat insulation glass module, and the bulge is pressed on the door body.

23. The heat insulation door according to claim 1, wherein the heat insulation space is filled with inert gas.

24. A refrigeration appliance, comprising the heat insulation door according to claim 1.