Header for use in heat exchanger, heat exchanger and method for manufacturing the same
First Claim
1. A header for use in heat exchangers, said header comprising:
- a base wall with a plurality of tube insertion apertures for inserting heat exchanging tubes formed at predetermined intervals in a longitudinal direction of said base wall;
an opposite wall opposed to said base wall;
a pair of side walls disposed at both lateral sides of said base wall and said opposite wall and connecting said lateral sides; and
a reinforcing wall disposed between said base wall and said opposite wall along a longitudinal direction thereof and connecting said base wall to said opposite wall, wherein said side walls are integrally formed at both lateral sides of said base wall by bending processing, wherein a first half of said opposite wall constituting one half of said opposite wall is integrally formed at a side of one of said side walls by bending processing, wherein a second half of said opposite wall constituting the other half of said opposite wall is integrally formed at a side of the other of said side walls by bending processing, and wherein said reinforcing wall is integrally formed at at least one of sides of said first half of said opposite wall and said second half of said opposite wall by bending processing.
1 Assignment
0 Petitions
Accused Products
Abstract
A header for use in heat exchanger includes a base wall (20) with a plurality of tube insertion apertures (23), an opposite wall (30) opposed to the base wall (20), a pair of side walls (40a and 40b) disposed at both lateral sides of the base wall (20) and the opposite wall (30) and connecting the lateral sides and are inforcing walls (50a and 50b) disposed betwwen the base wall (20) and the opposite wall (30) along a longitudinal direction thereof and connecting the base wall (20) with the opposite wall (30). The side walls (40a and 40b) are integrally formed at both lateral sides of the base wall (20) be bending processing. A first half (30a) of the opposite wall (30) is integrally formed at a side of one of the side walls (40a) by bending processing, and a second half (30b) of the opposite wall (30) is integrally formed at a side of the other of the side walls (40b) by bending processing. Reinforcing walls (50a and 50b) are integrally formed at sides of the first half (30a) and the second half (30b) of the opposite wall (30) by bending processing. With this header for use in heat exchanger, high pressure resistance can be obtained, and the number of parts and the manufacturing cost can be decreased.
14 Citations
48 Claims
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1. A header for use in heat exchangers, said header comprising:
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a base wall with a plurality of tube insertion apertures for inserting heat exchanging tubes formed at predetermined intervals in a longitudinal direction of said base wall;
an opposite wall opposed to said base wall;
a pair of side walls disposed at both lateral sides of said base wall and said opposite wall and connecting said lateral sides; and
a reinforcing wall disposed between said base wall and said opposite wall along a longitudinal direction thereof and connecting said base wall to said opposite wall, wherein said side walls are integrally formed at both lateral sides of said base wall by bending processing, wherein a first half of said opposite wall constituting one half of said opposite wall is integrally formed at a side of one of said side walls by bending processing, wherein a second half of said opposite wall constituting the other half of said opposite wall is integrally formed at a side of the other of said side walls by bending processing, and wherein said reinforcing wall is integrally formed at at least one of sides of said first half of said opposite wall and said second half of said opposite wall by bending processing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A header for use in heat exchangers, said header comprising:
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a base wall with a plurality of tube insertion apertures for inserting heat exchanging tubes formed at predetermined intervals in a longitudinal direction of said base wall;
an opposite wall opposed to said base wall;
a pair of side walls disposed at both lateral sides of said base wall and said opposite wall and connecting said lateral sides; and
a reinforcing wall disposed between said base wall and said opposite wall along a longitudinal direction thereof and connecting said base wall to said opposite wall, wherein said side walls are integrally formed at both lateral sides of said base wall by bending processing, wherein a first half of said opposite wall constituting one half of said opposite wall is integrally formed at a side of one of said side walls by bending processing, wherein a second half of said opposite wall constituting the other half of said opposite wall is integrally formed at a side of the other of said side walls by bending processing, and wherein said reinforcing wall is integrally formed at respective sides of said first half of said opposite wall and said second half of said opposite wall by bending processing, wherein insertion ledges are formed at certain intervals in a longitudinal direction of said header at side edges of said reinforcing walls opposed to said base wall, wherein said insertion ledges of said one of said reinforcing walls and said insertion ledges of said the other of said reinforcing walls are disposed alternatively along said longitudinal direction of said header, wherein said base wall is provided with insertion ledge engaging apertures at positions corresponding to said insertion ledges, and wherein said insertion ledges are inserted into corresponding insertion ledge engaging apertures and engaged therewith. - View Dependent Claims (27, 28, 29)
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30. A method for manufacturing a header for use in heat exchangers, said header including a base wall with a plurality of tube insertion apertures for inserting heat exchanging tubes formed at predetermined intervals in a longitudinal direction of said base wall, an opposite wall opposed to said base wall, a pair of side walls disposed at both lateral sides of said base wall and said opposite wall and connecting said lateral sides, and a reinforcing wall disposed between said base wall and said opposite wall along a longitudinal direction thereof and connecting said base wall with said opposite wall, said method comprising:
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a step for preparing a formed plate, said formed plate including a base wall region having said plurality of tube insertion apertures and extending in a longitudinal direction of said formed plate, a pair of side wall regions formed at both lateral sides of said base wall region and extending in said longitudinal direction, a first half region of an opposite wall formed at one of lateral sides of said base wall 1 region and extending in said longitudinal direction, a second half region of an opposite wall formed at the other of lateral sides of said base wall region and extending in said longitudinal direction, and a reinforcing wall region formed at at least one of said first half and second half regions of said opposite wall and extending in said longitudinal direction;
a step for bending said reinforcing wall region relative to said first half region of said opposite wall and/or said second half region of said opposite wall;
a step for bending said first half region of said opposite wall and/or said second half region of said opposite wall relative to said side wall regions; and
a step for bending said side wall regions relative to said base wall region, to thereby obtain said header in which said base wall, said side walls, said opposite wall and said reinforcing wall are constituted by said base wall region, said side wall regions, said opposite wall region and said reinforcing wall region, respectively. - View Dependent Claims (31, 32, 33, 34, 35)
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36. A heat exchanger, comprising:
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a pair of headers for use in heat exchangers; and
a plurality of heat exchanging tubes disposed in parallel with each other between said pair of headers with opposite ends thereof communicated with said headers, wherein at least one of said pair of headers includes;
a base wall with a plurality of tube insertion apertures for inserting said heat exchanging tubes formed at predetermined intervals in a longitudinal direction of said base wall;
an opposite wall opposed to said base wall;
a pair of side walls disposed at both lateral sides of said base wall and said opposite wall and connecting said lateral sides; and
a reinforcing wall disposed between said base wall and said opposite wall along a longitudinal direction thereof and connecting said base wall to said opposite wall, wherein said side walls are integrally formed at both lateral sides of said base wall by bending processing, wherein a first half of said opposite wall constituting one half of said opposite wall is integrally formed at a side of one of said side walls by bending processing, wherein a second half of said opposite wall constituting the other half of said opposite wall is integrally formed at a side of the other of said side walls by bending processing, and wherein said reinforcing wall is integrally formed at at least one of sides of said first half of said opposite wall and said second half of said opposite wall by bending processing. - View Dependent Claims (37, 38)
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39. A heat exchanger, comprising:
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a pair of headers for use in heat exchangers; and
a plurality of heat exchanging tubes disposed in parallel with each other between said pair of headers with opposite ends thereof communicated with said headers, wherein at least one of said pair of headers includes;
a base wall with a plurality of tube insertion apertures for inserting said heat exchanging tubes formed at predetermined intervals in a longitudinal direction of said base wall;
an opposite wall opposed to said base wall;
a pair of side walls disposed at both lateral sides of said base wall and said opposite wall and connecting said lateral sides; and
reinforcing walls disposed between said base wall and said opposite wall along a longitudinal direction thereof and connecting said base wall to said opposite wall, wherein said side walls are integrally formed at both lateral sides of said base wall by bending processing, wherein a first half of said opposite wall constituting one half of said opposite wall is integrally formed at a side of one of said side walls by bending processing, wherein a second half of said opposite wall constituting the other half of said opposite wall is integrally formed at a side of the other of said side walls by bending processing, wherein each of said reinforcing walls is integrally formed at each of sides of said first half of said opposite wall and said second half of said opposite wall by bending processing, wherein each of said reinforcing walls is provided with insertion ledges at a base wall side edge of said reinforcing wall opposed to said base wall at predetermined intervals in a longitudinal direction of said header, wherein said insertion ledges of one of said reinforcing walls and said insertion ledges of the other of said reinforcing walls are disposed alternatively in said longitudinal direction of said header, wherein said base wall is provided with insertion ledge engaging apertures at positions corresponding to said insertion ledges, and wherein said insertion ledges are inserted into said insertion ledge engaging apertures and engaged therewith, respectively. - View Dependent Claims (40, 41, 42)
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43. A manufacturing method of a heat exchanger, the method comprising:
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a step for preparing a pair of headers for use in heat exchangers;
a step for preparing a plurality of heat exchanging tubes; and
a step for disposing said plurality of heat exchanging tubes in parallel with each other between said pair of headers with opposite ends thereof communicated with said headers, wherein at least one of said pair of headers includes;
a base wall with a plurality of tube insertion apertures for inserting heat exchanging tubes formed at predetermined intervals in a longitudinal direction of said base wall;
an opposite wall opposed to said base wall;
a pair of side walls disposed at both lateral sides of said base wall and said opposite wall and connecting said lateral sides; and
a reinforcing wall disposed between said base wall and said opposite wall along a longitudinal direction thereof and connecting said base wall to said opposite wall, wherein said side walls are integrally formed at both lateral sides of said base wall by bending processing, wherein a first half of said opposite wall constituting one half of said opposite wall is integrally formed at a side of one of said side walls by bending processing, wherein a second half of said opposite wall constituting the other half of said opposite wall is integrally formed at a side of the other of said side walls by bending processing, and wherein said reinforcing wall is integrally formed at at least one of sides of said first half of said opposite wall and said second half of said opposite wall by bending processing. - View Dependent Claims (44, 45)
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46. A manufacturing method of a heat exchanger, the method comprising:
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a step for preparing a pair of headers for use in heat exchangers;
a step for preparing a plurality of heat exchanging tubes; and
a step for disposing said plurality of heat exchanging tubes in parallel with each other between said pair of headers with opposite ends thereof communicated with said headers, wherein at least one of said pair of headers includes;
a base wall with a plurality of tube insertion apertures for inserting heat exchanging tubes formed at predetermined intervals in a longitudinal direction of said base wall;
an opposite wall opposed to said base wall;
a pair of side walls disposed at both lateral sides of said base wall and said opposite wall and connecting said lateral sides; and
reinforcing walls disposed between said base wall and said opposite wall along a longitudinal direction thereof and connecting said base wall to said opposite wall, wherein said side walls are integrally formed at both lateral sides of said base wall by bending processing, wherein a first half of said opposite wall constituting one half of said opposite wall is integrally formed at a side of one of said side walls by bending processing, wherein a second half of said opposite wall constituting the other half of said opposite wall is integrally formed at a side of the other of said side walls by bending processing, wherein each of said reinforcing walls is integrally formed at each of sides of said first half of said opposite wall and said second half of said opposite wall by bending processing, wherein each of said reinforcing walls is provided with insertion ledges at a base wall side edge of said reinforcing wall opposed to said base wall at predetermined intervals in a longitudinal direction of said header, wherein said insertion ledges of one of said reinforcing walls and said insertion ledges of the other of said reinforcing walls are disposed alternatively in said longitudinal direction of said header, wherein said base wall is provided with insertion ledge engaging apertures at positions corresponding to said insertion ledges, and wherein said insertion ledges are inserted into said insertion ledge engaging apertures and engaged therewith, respectively. - View Dependent Claims (47, 48)
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Specification