GB2138335A - An assembly of two parts - Google Patents

An assembly of two parts Download PDF

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Publication number
GB2138335A
GB2138335A GB08310585A GB8310585A GB2138335A GB 2138335 A GB2138335 A GB 2138335A GB 08310585 A GB08310585 A GB 08310585A GB 8310585 A GB8310585 A GB 8310585A GB 2138335 A GB2138335 A GB 2138335A
Authority
GB
United Kingdom
Prior art keywords
edge zone
edge
slot
assembly
outer edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08310585A
Other versions
GB8310585D0 (en
GB2138335B (en
Inventor
Alfred Douglas King
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Motor Co
Original Assignee
Ford Motor Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ford Motor Co filed Critical Ford Motor Co
Priority to GB08310585A priority Critical patent/GB2138335B/en
Publication of GB8310585D0 publication Critical patent/GB8310585D0/en
Priority to DE19843412632 priority patent/DE3412632C2/en
Publication of GB2138335A publication Critical patent/GB2138335A/en
Application granted granted Critical
Publication of GB2138335B publication Critical patent/GB2138335B/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/122—Fastening; Joining by methods involving deformation of the elements by crimping, caulking or clinching

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

Two parts 10 and 14 eg. a tube plate and a header tank, are joined by a crimped joint. The part 10 has a flange 12, and the part 14 has an edge 16 with slots 18 in it. The deformable material of the edge 16 above the slots 18 is crimped inwards over the flange. To prevent the part 14 bowing when the edge 16 is formed, a slit 22 is made in each of the long edges. <IMAGE>

Description

SPECIFICATION An assembly of two parts This invention relates to an assembly of two parts with a joint between the parts. The assembly may, for example, be an assembly of a tube plate and a header tank of an automative cooling radiator. The invention is not however restricted to this application, but one aspect of the invention does provide a tube plate for a heat exchanger.
An assembly of this type is described in the specification of U.K. Patent No. 2 037 204 B to which reference should be made. From the drawings of that specification, in particular Figures 1 and 6, it can be seen that the outer edge 16 of the tube plate 2 is of a substantial depth. In production of this component, it is found that, on account of its shape, it takes up a slightly concave shape, with the concavity facing its partner plate at the other end of the radiator. These tube plates are then fitted at opposite ends of a heat exchanger core, and finally header tanks are fitted to the tube plates. The fitting of the header tanks straightens the tube plates, and therefore stresses the core, putting the outer core tubes in tension and the inner tubes in compression. These stresses can make the radiator susceptible to leaks.
According to the present invention, there is provided an assembly comprising a first part having a flange and a second part having a deformable edge zone wherein the edge zone before deformation has a continuous straight outer edge and after deformation has a continuous undulating outer edge with alternating deformed and undeformed zones, the deformed zones providing a joint between the parts and the undeformed zones providing stiffening; the edge zone has first slots spaced from the outer edge and extending in their longitudinal direction parallel to the outer edge and at least one second slot extending through the outer edge and having its longitudinal direction substantially normal to the outer edge, and the edge zone is deformed in a direction, transverse to the plane of the edge zone to produce the joint.
The presence of the second slot relieves the stresses in the outer edge of the deformable edge zone, so that the second part lies flat.
The first part may be a header tank for an automotive radiator, and the second part may be a tube plate. If the header tank is of plastics and has webs bracing the flange against the tank wall, the width and positioning of the or each second slot may be such that the sides of the slot lie either side of a web, so that there are no projecting corners of the deformable edge zone.
The invention also provides a tube plate for a heat exchanger, the plate having a planar region in which tubes may be secured and an upstanding edge zone around the planar region, the edge zone having first slots spaced from its outer edges and extending in their longitudinal direction parallel to the outer edges and second slots extending through the outer edge and having their longitudinal direction substantially normal to the outer edge, and the regions of the edge zone between the first slots and the outer edges being adapted to be deformed in a direction transverse to the plane of the edge zone to allow the plate to be joined to a header tank.
The invention will now be further described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a perspective view of part of an assembly in accordance with the invention; Figure2 is a section along the line ll-ll from Figure 1; and Figure 3 shows the edge of the tube plate before crimping.
Figures 1 and 2 show a header tank 10 which may be made of plastics and which has a peripheral flange 12. Atube plate 14 has a deformable upstanding edge zone 16. The edge zone is provided with horizontal slots 18, and the joint is assembled by crimping the regions of the edge zone 16 above the slots 18 inwardly so that they lie above the flange 12.
A seal 20 is compressed between the flange 12 and the plate 14. This process is carried out in the manner described in Patent Specification 2 037 204 B.
In order to avoid bowing of the tube plate 4, a slot 22 is made in the top of the edge zone 16. This relieves the stresses in this area and helps to ensure that the tube plate stays flat. The slot 22 is positioned so that, when the joint is crimped, the sides 24 and 26 of the slot fit neatly either side of a web 28 which supports the flange 12 on the tank 10. This avoids protruding corners of the edge zone 16. The slot 22 should not be any wider than necessary, to avoid unnecessary weakening of the edge zone. The bottom of the slot 22 is rounded to avoid stress build up.
The depth of the slot should not be any greater than the distance from the top of the edge zone to the bottom of the slots 18, also to avoid weakening the edge zone 16. The width may be about 2mm, and is preferably not less than this value.
A single slot in each long side of the tube plate may be sufficient to ensure that the plate stays flat.
Alternatively there may be a number of slots along each side.
1. An assembly comprising a first part having a flange and a second part having a deformable edge zone wherein the edge zone before deformation has a continuous straight outer edge and after deformation has a continuous undulating outer edge with alternating deformed and undeformed zones, the deformed zones providing a joint between the parts and the undeformed zones providing stiffening; the edge zone has first slots spaced from the outer edge and extending in their longitudinal direction parallel to the outer edge and at least one second slot extending through the outer edge and having its longitudinal direction substantially normal to the outer edge, and the edge zone is deformed in a direction, transverse to the plane of the edge zone to produce the joint.
2. An assembly as claimed in Claim 1, wherein the or each second slot has a rounded bottom.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (8)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION An assembly of two parts This invention relates to an assembly of two parts with a joint between the parts. The assembly may, for example, be an assembly of a tube plate and a header tank of an automative cooling radiator. The invention is not however restricted to this application, but one aspect of the invention does provide a tube plate for a heat exchanger. An assembly of this type is described in the specification of U.K. Patent No. 2 037 204 B to which reference should be made. From the drawings of that specification, in particular Figures 1 and 6, it can be seen that the outer edge 16 of the tube plate 2 is of a substantial depth. In production of this component, it is found that, on account of its shape, it takes up a slightly concave shape, with the concavity facing its partner plate at the other end of the radiator. These tube plates are then fitted at opposite ends of a heat exchanger core, and finally header tanks are fitted to the tube plates. The fitting of the header tanks straightens the tube plates, and therefore stresses the core, putting the outer core tubes in tension and the inner tubes in compression. These stresses can make the radiator susceptible to leaks. According to the present invention, there is provided an assembly comprising a first part having a flange and a second part having a deformable edge zone wherein the edge zone before deformation has a continuous straight outer edge and after deformation has a continuous undulating outer edge with alternating deformed and undeformed zones, the deformed zones providing a joint between the parts and the undeformed zones providing stiffening; the edge zone has first slots spaced from the outer edge and extending in their longitudinal direction parallel to the outer edge and at least one second slot extending through the outer edge and having its longitudinal direction substantially normal to the outer edge, and the edge zone is deformed in a direction, transverse to the plane of the edge zone to produce the joint. The presence of the second slot relieves the stresses in the outer edge of the deformable edge zone, so that the second part lies flat. The first part may be a header tank for an automotive radiator, and the second part may be a tube plate. If the header tank is of plastics and has webs bracing the flange against the tank wall, the width and positioning of the or each second slot may be such that the sides of the slot lie either side of a web, so that there are no projecting corners of the deformable edge zone. The invention also provides a tube plate for a heat exchanger, the plate having a planar region in which tubes may be secured and an upstanding edge zone around the planar region, the edge zone having first slots spaced from its outer edges and extending in their longitudinal direction parallel to the outer edges and second slots extending through the outer edge and having their longitudinal direction substantially normal to the outer edge, and the regions of the edge zone between the first slots and the outer edges being adapted to be deformed in a direction transverse to the plane of the edge zone to allow the plate to be joined to a header tank. The invention will now be further described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a perspective view of part of an assembly in accordance with the invention; Figure2 is a section along the line ll-ll from Figure 1; and Figure 3 shows the edge of the tube plate before crimping. Figures 1 and 2 show a header tank 10 which may be made of plastics and which has a peripheral flange 12. Atube plate 14 has a deformable upstanding edge zone 16. The edge zone is provided with horizontal slots 18, and the joint is assembled by crimping the regions of the edge zone 16 above the slots 18 inwardly so that they lie above the flange 12. A seal 20 is compressed between the flange 12 and the plate 14. This process is carried out in the manner described in Patent Specification 2 037 204 B. In order to avoid bowing of the tube plate 4, a slot 22 is made in the top of the edge zone 16. This relieves the stresses in this area and helps to ensure that the tube plate stays flat. The slot 22 is positioned so that, when the joint is crimped, the sides 24 and 26 of the slot fit neatly either side of a web 28 which supports the flange 12 on the tank 10. This avoids protruding corners of the edge zone 16. The slot 22 should not be any wider than necessary, to avoid unnecessary weakening of the edge zone. The bottom of the slot 22 is rounded to avoid stress build up. The depth of the slot should not be any greater than the distance from the top of the edge zone to the bottom of the slots 18, also to avoid weakening the edge zone 16. The width may be about 2mm, and is preferably not less than this value. A single slot in each long side of the tube plate may be sufficient to ensure that the plate stays flat. Alternatively there may be a number of slots along each side. CLAIMS
1. An assembly comprising a first part having a flange and a second part having a deformable edge zone wherein the edge zone before deformation has a continuous straight outer edge and after deformation has a continuous undulating outer edge with alternating deformed and undeformed zones, the deformed zones providing a joint between the parts and the undeformed zones providing stiffening; the edge zone has first slots spaced from the outer edge and extending in their longitudinal direction parallel to the outer edge and at least one second slot extending through the outer edge and having its longitudinal direction substantially normal to the outer edge, and the edge zone is deformed in a direction, transverse to the plane of the edge zone to produce the joint.
2. An assembly as claimed in Claim 1, wherein the or each second slot has a rounded bottom.
3. An assembly as claimed in Claim 1 or Claim 2, wherein the or each second slot extends only as far as the first slots.
4. An assembly as claimed in any preceding claim, wherein the first part is a header tank of an automotive radiator and the second part is a tube plate.
5. An assembly as claimed in Claim 4, wherein the or each second slot is the same width as, and registers with, a web on the header tank which braces the flange against a tank wall.
6. A tube plate for a heat exchanger, the plate having a planar region in which tubes may be secured and an upstanding edge zone around the planar region, the edge zone having first slots spaced from its outer edges and extending in their longitudinal direction parallel to the outer edges and second slots extending through the outer edge and having their longitudinal direction substantially normal to the outer edge, and the regions of the edge zone betwen the first slots and the outer edges being adapted to be deformed in a direction transverse to the plane of the edge zone to allow the plate to be joined to a header tank.
7. An assembly of two parts, substantially as herein described with reference to and as illustrated in the accompanying drawing.
8. Atube plate substantially as herein described with reference to and as illustrated in the accompanying drawing.
GB08310585A 1983-04-19 1983-04-19 An assembly of two parts Expired GB2138335B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08310585A GB2138335B (en) 1983-04-19 1983-04-19 An assembly of two parts
DE19843412632 DE3412632C2 (en) 1983-04-19 1984-04-04 Heat exchangers for automobiles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08310585A GB2138335B (en) 1983-04-19 1983-04-19 An assembly of two parts

Publications (3)

Publication Number Publication Date
GB8310585D0 GB8310585D0 (en) 1983-05-25
GB2138335A true GB2138335A (en) 1984-10-24
GB2138335B GB2138335B (en) 1986-05-14

Family

ID=10541324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08310585A Expired GB2138335B (en) 1983-04-19 1983-04-19 An assembly of two parts

Country Status (2)

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DE (1) DE3412632C2 (en)
GB (1) GB2138335B (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4881595A (en) * 1987-09-30 1989-11-21 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co. Kg Clamping connection
DE4330865A1 (en) * 1993-09-11 1995-03-16 Behr Gmbh & Co Heat exchanger, in particular radiator, for motor vehicles
FR2712384A1 (en) * 1993-11-11 1995-05-19 Behr Gmbh & Co Manifold for a radiator of an internal-combustion engine
AT399947B (en) * 1991-06-03 1995-08-25 Vaillant Gmbh Combustion-chamber shaft for a water heater
EP0779488A1 (en) * 1995-12-13 1997-06-18 Valeo Thermique Moteur S.A. Heat exchanger, more in particularly for automotive vehicle
ES2112737A1 (en) * 1993-11-08 1998-04-01 Behr Gmbh & Co Heat exchanger, in particular radiator, for motor vehicles
WO2000022366A1 (en) 1998-10-09 2000-04-20 S.C. Romradiatoare S.A. High efficiency heat exchanger with oval tubes
EP3106821A1 (en) * 2015-06-18 2016-12-21 Borgwarner Emissions Systems Spain, S.L.U. Heat exchanger
JP2017194211A (en) * 2016-04-20 2017-10-26 株式会社デンソー Heat exchanger
EP3421920A1 (en) 2017-06-27 2019-01-02 Mahle International GmbH Heat exchanger
EP3447433A1 (en) 2017-08-24 2019-02-27 Mahle International GmbH Heat exchanger as well as method for producing a heat exchanger
US10823509B2 (en) 2016-04-20 2020-11-03 Denso Corporation Heat exchanger and manufacturing method thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3841470A1 (en) * 1988-12-09 1990-06-13 Sueddeutsche Kuehler Behr WATERCASE CLAMP CONNECTION
DE4236389A1 (en) * 1992-10-28 1994-05-05 Behr Gmbh & Co Heat exchanger for motor vehicle - has edge on water tank foot with section to accommodate sealing register
DE102012206021A1 (en) * 2012-04-12 2013-10-17 Behr Gmbh & Co. Kg Heat exchanger for use in motor vehicle, has tube plate with two portions, where tube plate is provided with positioned edge portion, while latter portion is bent, and is provided with inwardly directed hook-like elements

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1471734A (en) * 1973-12-13 1977-04-27 Chausson Usines Sa Heat exchangers
GB2034018A (en) * 1978-08-15 1980-05-29 Covrad Ltd Header Tank Construction
GB2037204A (en) * 1978-12-04 1980-07-09 Sueddeutsche Kuehler Behr Crimped joint and a metho and apparatus for producing it

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1577223A (en) * 1967-07-21 1969-08-08
FR2050306B1 (en) * 1969-07-21 1973-11-16 Chausson Usines Sa
DE2816291A1 (en) * 1978-04-14 1979-10-25 Thermal Waerme Kaelte Klima CONNECTION BETWEEN A PIPE BOTTOM AND A LID FOR THE FORMATION OF A WATER BOX AND A PROCESS FOR PRODUCING THE CONNECTION

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1471734A (en) * 1973-12-13 1977-04-27 Chausson Usines Sa Heat exchangers
GB2034018A (en) * 1978-08-15 1980-05-29 Covrad Ltd Header Tank Construction
GB2037204A (en) * 1978-12-04 1980-07-09 Sueddeutsche Kuehler Behr Crimped joint and a metho and apparatus for producing it

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4881595A (en) * 1987-09-30 1989-11-21 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co. Kg Clamping connection
AT399947B (en) * 1991-06-03 1995-08-25 Vaillant Gmbh Combustion-chamber shaft for a water heater
DE4330865A1 (en) * 1993-09-11 1995-03-16 Behr Gmbh & Co Heat exchanger, in particular radiator, for motor vehicles
ES2112737A1 (en) * 1993-11-08 1998-04-01 Behr Gmbh & Co Heat exchanger, in particular radiator, for motor vehicles
FR2712384A1 (en) * 1993-11-11 1995-05-19 Behr Gmbh & Co Manifold for a radiator of an internal-combustion engine
EP0779488A1 (en) * 1995-12-13 1997-06-18 Valeo Thermique Moteur S.A. Heat exchanger, more in particularly for automotive vehicle
FR2742529A1 (en) * 1995-12-13 1997-06-20 Valeo Thermique Moteur Sa HEAT EXCHANGER WITH A SET COLLECTOR PLATE, PARTICULARLY FOR A MOTOR VEHICLE
WO2000022366A1 (en) 1998-10-09 2000-04-20 S.C. Romradiatoare S.A. High efficiency heat exchanger with oval tubes
EP3106821A1 (en) * 2015-06-18 2016-12-21 Borgwarner Emissions Systems Spain, S.L.U. Heat exchanger
JP2017194211A (en) * 2016-04-20 2017-10-26 株式会社デンソー Heat exchanger
US10823509B2 (en) 2016-04-20 2020-11-03 Denso Corporation Heat exchanger and manufacturing method thereof
EP3421920A1 (en) 2017-06-27 2019-01-02 Mahle International GmbH Heat exchanger
EP3447433A1 (en) 2017-08-24 2019-02-27 Mahle International GmbH Heat exchanger as well as method for producing a heat exchanger
CN109425255A (en) * 2017-08-24 2019-03-05 马勒国际有限公司 Heat exchanger and method for manufacturing heat exchanger

Also Published As

Publication number Publication date
GB8310585D0 (en) 1983-05-25
GB2138335B (en) 1986-05-14
DE3412632A1 (en) 1984-11-15
DE3412632C2 (en) 1985-05-23

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PCNP Patent ceased through non-payment of renewal fee