Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/0017—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor moulding interconnected elements which are movable with respect to one another, e.g. chains or hinges
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
  • B60H1/00—Heating, cooling or ventilating [HVAC] devices
  • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
  • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
  • B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
  • B60H1/00835—Damper doors, e.g. position control
  • B60H1/00857—Damper doors, e.g. position control characterised by the means connecting the initiating means, e.g. control lever, to the damper door

Definitions

• the present invention relates to an improvement to a mould for structural ventilation, heating and/or air-conditioning systems and, more particularly, to an improvement to a mould for use in HVAC systems for motor vehicles.
• the ventilation, heating and/or air-conditioning system architecture is too expensive and too complex, with great potential for assembly errors and other intrinsic problems. Injection-moulding machines may also be large, requiring sizable spaces for the installation of a plant for said purpose of constructing the architecture of an HVAC system.
• the present invention relates to an overmould for ventilation, heating and/or air-conditioning system architecture for motor vehicles, which comprises a single mould for all the components of the system architecture, forming a single overmould using a single injection-moulding machine.
• One object of the present invention is to provide a heating, ventilation and/or air-conditioning system architecture for motor vehicles that is simple in structure, with no need for mountings.
• a further object of the present invention is to provide an architecture of this type that is flexible and also obtained from a single mould, without mountings.
• Yet a further object of the present invention is to provide a heating, ventilation and/or air-conditioning system architecture for motor vehicles which is obtained by using only one injection-moulding machine using different raw materials for that purpose.
• a heating, ventilation and/or air-conditioning system for motor vehicles which comprises at least one component formed by injection of a first material into a mould; at least a second component formed by injection of a second material into the mould; the first and second materials being mutually incompatible materials, the first and second components being connected, and the articulation between one and the other being maintained.
• Figure 1 is a perspective view of a heating, ventilation and/or air- conditioning system architecture for motor vehicles according to the prior art
• Figure 2 is an isometric view of the separate sets of parts of the heating, ventilation and/or air-conditioning system architecture for motor vehicles according to the prior art
• FIG. 3 is a perspective view of the heating, ventilation and/or air- conditioning structural system for motor vehicles of the present invention.
• FIGS 4a-d are detailed perspective views of the connection between the components of the heating, ventilation and/or air-conditioning structural system for motor vehicles of the present invention.
• Figures 1 and 2 illustrate the heating, ventilation and/or air-conditioning system architecture for motor vehicles according to the prior art.
• the heating, ventilation and/or air-conditioning system architecture for motor vehicles comprises components (1 , 2, 3) that are moulded separately in different moulds. These components are subsequently assembled by fitting one to another, as illustrated in Figure 2.
• Figure 2 By way of example, with reference to the prior-art architecture illustrated in Figure 2, three moulds and also three injection-moulding machines are required to produce the three components (1 , 2, 3) in question.
• the first component (1 ) has to be fitted together with the second component (2) and then the second component (2) has to be fitted to the third component (3), thereby completing the heating, ventilation and/or air- conditioning system architecture for motor vehicles according to the prior art.
• assembly of the architecture in question is complex and expensive, and requires too many tools for completion.
• Figure 3 illustrates the heating, ventilation and/or air-conditioning structural system for motor vehicles according to the present invention, which uses just one mould and one bi-injection moulding machine.
• incompatible materials have to be chosen to produce articulated components (4, 5, 6) that cannot be dismantled.
• Table 1 illustrates the incompatible materials that can be used to that end.
• the system of the present invention uses a mould into which different materials are poured at different stages of production, producing the components (4, 5, 6) that form the system of the present invention.
• the materials used in the mould are PA 6/6 polyamide and polyoxymethylene (POM) thermoplastic.
• POM polyoxymethylene
• various other combinations of other, different materials may be applied to the components of the system of the present invention, at the time of injection into the mould.
• the heating, ventilation and/or air-conditioning system for motor vehicles of the present invention will be produced without any assembly, the flexibility and articulation between the components (4, 5, 6) thereof being maintained.
• Injection using different materials creates a rivet-type connection (7) between the components (4, 5, 6) of the system of the present invention, as may be seen from Figures 4a-d.
• the mould inserts of the system are closed in order that the first injection of the first material can take place. After the first injection, the inserts are opened and the second injection takes place with the second material.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Manufacturing & Machinery (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Air-Conditioning For Vehicles (AREA)
• Injection Moulding Of Plastics Or The Like (AREA)
• Moulds For Moulding Plastics Or The Like (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=52021204

Family Applications (1)

Country Status (2)

Cited By (1)

Citations (8)

• 2013
  • 2013-12-09 BR BR102013031648A patent/BR102013031648A2/pt not_active Application Discontinuation
• 2014
  • 2014-12-09 WO PCT/EP2014/077061 patent/WO2015086601A1/en active Application Filing

Patent Citations (8)

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