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CN-121986241-A - Liquid heating device, in particular for a motor vehicle

CN121986241ACN 121986241 ACN121986241 ACN 121986241ACN-121986241-A

Abstract

The invention relates to a liquid heating device, in particular for a motor vehicle, comprising a housing (1) configured to hold a liquid, at least one electric heating element configured to heat the liquid in the housing (1), and a printed circuit board (20) allowing the passage of an electric current supplying the heating element, the device further comprising at least one electric connector (22 a,22 b) electrically connected to the heating element and/or the circuit board (20), and a mechanical connection (24 a,24 b) attached to the housing (1), one of the electric connector (22 a,22 b) and the circuit board (20) being supported on the other of the electric connector (22 a,22 b) and the circuit board (20), said other of the connector (22 a,22 b) and the circuit board (20) being supported on the housing (1) by means of the mechanical connection (24 a,24 b).

Inventors

  • DECOOL LAURENT
  • J. SKODA
  • R. Ragamalan
  • G. Karupan Nan

Assignees

  • 法雷奥电气化公司

Dates

Publication Date
20260505
Application Date
20241009
Priority Date
20231010

Claims (10)

  1. 1. A liquid heating device, in particular for a motor vehicle, comprising a housing (1) configured to hold a liquid, at least one electric heating element configured to heat the liquid in the housing (1), and a printed circuit board (20) allowing a circulation of an electric current supplying the heating element, the device further comprising at least one electric connector (22 a, 22 b) electrically connected to the heating element and/or the board (20), and a mechanical connection (24 a, 24 b) attached to the housing (1), one of the electric connector (22 a, 22 b) or the board (20) being supported on the other of the electric connector (22 a, 22 b) or the board (20), the other of the connector (22 a, 22 b) or the board (20) being supported on the housing (1) by the mechanical connection (24 a, 24 b).
  2. 2. The device according to claim 1, wherein the connector (22 a,22 b) and the plate (20) are configured to be attached to the housing (1) in the same mounting direction.
  3. 3. The device according to any one of the preceding claims, wherein the heating element comprises a first connection plug (18 a, 18 b) for connection to the connector (22 a, 22 b), the first plug being directed in the mounting direction.
  4. 4. The device according to the preceding claim, wherein the connector (22 a, 22 b) comprises a first connection terminal (34) for connection to the first plug (18 a, 18 b), the first terminal (34) being brought into contact with the first plug (18 a, 18 b) by elastic deformation of the first terminal (34), the deformation being caused by the first plug (18 a, 18 b) when the first plug (18 a, 18 b) is inserted into the first terminal (34).
  5. 5. The device according to the preceding claim, wherein the connector (22 a, 22 b) comprises a second connection plug (42) for connection to the board (20), the second plug (42) pointing in the mounting direction.
  6. 6. The device according to the preceding claim, wherein the plate (20) comprises a second connection terminal (38) for connection to the second plug (42), the second terminal (38) being brought into contact with the second plug (42) by elastic deformation of the second terminal (38), the deformation being caused by the second plug (42) when the second plug (42) is inserted into the second terminal (38).
  7. 7. The device of any one of claims 5 or 6, wherein the connector (22 a, 22 b) comprises a support (30) and a conductive track (32), the conductive track (32) being carried by the support (30), the conductive track (32) forming an electrical connection between the first connection terminal (34) and the second plug (42), the conductive track, the first connection terminal and the first plug having material continuity.
  8. 8. The device according to the preceding claim, wherein the conductive track (32) is formed by a bus bar.
  9. 9. The device according to any one of the preceding claims, wherein the plate (20) comprises a first passage hole (44 a, 44 b) for passing the connection piece (24 a, 24 b), the connector (22 a, 22 b) comprising a second passage hole for passing the connection piece (24 a, 24 b), the first and second passage holes facing each other.
  10. 10. The device of any of the preceding claims, wherein the connector (22 a, 22 b) spans a low voltage region (62) of the board (20).

Description

Liquid heating device, in particular for a motor vehicle Technical Field The present invention relates to a liquid heating device, in particular for a motor vehicle. Background In this field, devices are known that comprise a housing holding an electrical element configured to heat a liquid circulating in the housing. These devices also comprise a printed circuit board which allows the passage of an electric current supplying said heating element. The electrical current is supplied to the heating element using an electrical connector. However, there is a need for improved attachment of the board and connector. Disclosure of Invention The present invention aims to remedy at least some of the above-mentioned drawbacks and to this end provides a liquid heating device, in particular for a motor vehicle, comprising a housing configured to hold a liquid, at least one electric heating element configured to heat the liquid in the housing, and a printed circuit board allowing the passage of an electric current supplying the heating element, the device further comprising at least one electric connector electrically connected to the heating element and/or the circuit board, and a mechanical connection attached to the housing, one of the electric connector or the circuit board being supported on the other of the electric connector or the board, the other of the connector or the board being supported on the housing by the mechanical connection. Thus, according to the invention, the same mechanical connection is such that the conductor is supported against the plate and the plate is supported against the housing, or the plate is supported against the connector and the connector is supported against the housing. In this way, the conductors and the plates are attached together to the housing by sandwiching the plates between the connector and the housing or sandwiching the connector between the plates and the housing, the attachment being by means of a single mechanical connection. Thus, the attachment of the board and connector to the housing is a shared attachment, making the device easier to install. According to various additional features of the invention, they may be employed together or separately and form many embodiments of the invention: Said mechanical connection comprises a screw, The connector and the board are configured to be attached to the housing in the same mounting direction, The mounting direction is perpendicular to the plate, The heating element comprises a first connection plug for connection to the connector, Said first plug being directed in said mounting direction, The connector comprises a first connection terminal for connection to the first plug, The first terminal is brought into contact with the first plug by elastic deformation of the first terminal, the deformation being caused by the first plug when the first plug is inserted into the first terminal, The connector comprises a second connection plug for connection to the board, Said second plug being directed in said mounting direction, The board comprises a second connection terminal for connection to the second plug, The second terminal is brought into contact with the second plug by elastic deformation of the second terminal, said deformation being caused by the second plug when the second plug is inserted into the second terminal, The board comprises further connection terminals connected to further connection plugs, the second connection terminals and the further connection terminals being identical, The second connection terminals and the further connection terminals are arranged with some of them on one side of the board and the further connection terminals on the opposite side of the board, the second connection terminals and the further connection terminals being configured to be electrically connected with corresponding connection plugs in both a first insertion direction and an opposite insertion direction, The connector comprises a support and a conductive track carried by the support, The conductive track is configured to make an electrical connection between the first connection terminal and the second plug, The conductive track, the first connection terminal and the first plug have material continuity, The conductive track is formed by a bus bar, The plate comprises a first passage hole for the passage of the mechanical connection, Said connector, in particular said support, comprising a second passage hole for the passage of said mechanical connection, The first and second passage holes face each other, -The connector spans a low voltage region of the board. Drawings The invention will be better understood and other objects, details, features and advantages thereof will become more apparent in the course of the following detailed explanatory description of at least one embodiment thereof, given by way of purely illustrative and non-limiting example, with reference to the accompanying schematic drawings, in which: fig. 1 sch