Cover fin and heat exchanger unit including the same

Patent metadata

Field	Value
Publication number	US-12298087-B2
Application number	US-202318399991-A
Country	US
Kind code	B2
Filing date	Dec 29, 2023
Priority date	Dec 29, 2022
Publication date	May 13, 2025
Grant date	May 13, 2025

Abstract

Disclosed is a cover fin including a front part and a rear part being perpendicular to a forward/rearward direction and spaced apart from each other in the forward/rearward direction, a connecting part connecting the front part and the rear part, a leg part extending from an upper end of the rear part toward an upper side when one direction being perpendicular to the forward/rearward direction is defined as an upward/downward direction, and a protrusion protruding from the leg part to a rear side.

First claim

What is claimed is:

1. A cover fin comprising:
a front part and a rear part being perpendicular to a forward/rearward direction and spaced apart from each other in the forward/rearward direction;
a connecting part connecting the front part and the rear part;
a leg part extending from an upper end of the rear part toward an upper side when one direction being perpendicular to the forward/rearward direction is defined as an upward/downward direction; and
a protrusion protruding rearward from the leg part.

2. The cover fin of claim 1 , wherein when a direction being perpendicular to the forward/rearward direction and the upward/downward direction is defined as a leftward/rightward direction,
a width of the front part in the leftward/rightward direction is smaller than a width of the rear part.

3. The cover fin of claim 1 , wherein when a direction being perpendicular to the forward/rearward direction and the upward/downward direction is defined as a leftward/rightward direction,
the connecting part includes:
a (1-1)-th connecting area connected to a lower end of the front part; and
a (1-2)-th connecting area connecting the (1-1)-th connecting area and a lower end of the rear part, and
wherein a width of the (1-1)-th connecting area in the leftward/rightward direction is smaller than a width of the (1-2)-th connecting area.

4. The cover fin of claim 1 , wherein when a direction being perpendicular to the forward/rearward direction and the upward/downward direction is defined as a leftward/rightward direction,
the front part includes:
a lower end area extending toward the upper side; and
an upper end area, of which a width in the leftward/rightward direction decreases as it goes from the lower end area to an upper side.

5. The cover fin of claim 1 , wherein when a direction being perpendicular to the forward/rearward direction and the upward/downward direction is defined as a leftward/rightward direction,
the connecting part has a shape that is curved to be convex downward when viewed along the leftward/rightward direction.

6. The cover fin of claim 1 , wherein the protrusion includes:
a first protruding area curved from an upper end of the leg part toward a rear side; and
a second protruding area curved from an upper end of the first protruding area toward a front side.

7. The cover fin of claim 1 , wherein the leg part includes:
a first leg area extending upward from an upper end of the rear part; and
a second leg area extending from the first leg area and connected to the protrusion, and
wherein when a direction being perpendicular to the forward/rearward direction and the upward/downward direction is defined as a leftward/rightward direction,
the first leg area includes an outer boundary inclined inward with respect to the upper side in the leftward/rightward direction, and an inner boundary inclined outward with respect to the upper side.

8. The cover fin of claim 7 , wherein a direction, in which the inner boundary extends, and a direction, in which the outer boundary extends, are not perpendicular to each other.

9. The cover fin of claim 1 , further comprising:
a cover part extending from an area being different from a partial area of the connecting part, which is connected to a lower end of the rear part, toward a rear side.

10. A cover fin comprising:
a front part and a rear part being perpendicular to a forward/rearward direction and spaced apart from each other in the forward/rearward direction;
a connecting part connecting the front part and the rear part; and
a wing part protruding from a side surface of the connecting part in a leftward/rightward direction toward an upper side when one direction being perpendicular to the forward/rearward direction is defined as an upward/downward direction and another direction being perpendicular to the forward/rearward direction and the upward/downward direction is defined as the leftward/rightward direction.

11. The cover fin of claim 10 , wherein the wing part includes:
a first wing area facing the upper side from the side surface and extending while being inclined to an outside of the connecting part; and
a second wing area facing the upper side and extending from one end of the first wing area while being inclined inward, in the first wing area.

12. The cover fin of claim 10 , wherein a plurality of grooves recessed toward a lower side is formed at an upper end of the front part.

13. A heat exchanger comprising:
a plurality of heat exchange pipelines disposed in a heat exchange area configured to receive heat generated through a combustion reaction and heat heating water, and extending along a forward/rearward direction to receive the heating water and cause the heating water to flow through an interior thereof;
a plurality of heat fins disposed in the heat exchange area, formed in a plate shape crossing the heat exchange pipelines, and through which the plurality of heat exchange pipelines pass;
a front plate and a rear plate coupled to front ends and rear ends of the plurality of heat exchange pipelines, respectively; and
a cover fin disposed in an interior space between, among the plurality of heat fins, a first heat fin disposed adjacent to the front ends of the plurality of heat exchange pipelines and the front plate, and inserted into the interior space from a lower side toward an upper side when one direction being perpendicular to the forward/rearward direction is defined as an upward/downward direction,
wherein the cover fin includes:
a front part contacting the front plate;
a rear part contacting the first heat fin; and
a connecting part connecting the front part and the rear part.

14. The heat exchanger of claim 13 , wherein the cover fin includes:
a leg part extending from an upper end of the rear part toward the upper side; and
a protrusion protruding rearward from the leg part, and
wherein the protrusion is inserted into a hole formed in the first heat fin.

15. The heat exchanger of claim 14 , wherein the protrusion is inserted into the hole formed in the first heat fin whereby the cover fin is disposed at a lower end of the interior space, which is adjacent to an outside of the heat exchanger.

16. The heat exchanger of claim 13 , wherein the cover fin further includes:
a cover part extending from an area being different from a partial area of the connecting part connected to a lower end of the rear part toward a rear side, and
wherein the cover part covers lower ends of the plurality of heat fins.

17. The heat exchanger of claim 13 , further comprising:
when a direction being perpendicular to the forward/rearward direction and the upward/downward direction is defined as a leftward/rightward direction,
a side plate connecting the front plate and the rear plate,
wherein the cover fin further includes a wing part protruding from a side surface of the connecting part in the leftward/rightward direction toward an upper side, and
wherein the wing part contacts the side plate whereby the cover fin is fixed to the side plate.

18. The heat exchanger of claim 13 , wherein a plurality of (1-1)-th grooves recessed toward a lower side and a plurality of (1-2)-th grooves recessed toward the lower side between the (1-1)-th grooves to be thinner than the plurality of (1-1)-th grooves are formed at an upper end of the front part of the cover fin, and
wherein the plurality of (1-2)-th grooves contact the plurality of heat exchange pipelines.

19. The heat exchanger of claim 18 , wherein the plurality of (1-2)-th grooves c

Assignees

• Kyungdong Navien Co Ltd

Inventors

• Lee Hong Ki
• Jeong In Chul

Classifications

• F28F9/22

  Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates · CPC title

• F28F9/0131

  formed by plates (F28F9/0138 takes precedence) · CPC title

• F24H1/40

  with water tube or tubes · CPC title

• F24H1/145

  using fluid fuel · CPC title

• F28F2215/14

  in the form of movable or loose fins · CPC title