Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
  • G01D21/00—Measuring or testing not otherwise provided for
  • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
  • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
  • G01D11/24—Housings ; Casings for instruments
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
  • G01K13/00—Thermometers specially adapted for specific purposes
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
  • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
  • H02K11/21—Devices for sensing speed or position, or actuated thereby
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
  • H02K11/30—Structural association with control circuits or drive circuits
  • H02K11/33—Drive circuits, e.g. power electronics
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
  • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
  • H02P29/60—Controlling or determining the temperature of the motor or of the drive
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
  • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
  • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
  • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
  • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R31/00—Coupling parts supported only by co-operation with counterpart
  • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter

Definitions

• the present invention relates to a sensor assembly comprising an inductive technology position sensor and a temperature sensor.
• This assembly is intended to measure the position and the temperature within an electrical machine used in a mobility device of the electric vehicle or electrically assisted bicycle type.
• this type of assembly is composed on the one hand of an inductive sensor with at least one cable and on the other hand of a temperature sensor with at least one other cable.
• Such an assembly thus requires the use of at least two separate electrical harnesses.
• the use of this set of bundles increases the cost of the sensor set and imposes the manipulation of the cables during the assembly of the various sensors, which complicates this assembly.
• the object of the present invention is therefore to overcome one or more of the drawbacks of the assemblies of the prior art by proposing a sensor assembly, comprising improved position and temperature sensors.
• the present invention proposes a sensor assembly, for an inverter, comprising at least one so-called inductive technology position sensor and at least one temperature sensor for an electric machine, each of the sensors comprising at least one connector, characterized in that each of the sensor connectors is connected by at least one common cable to the other sensor connector and to the inverter connector.
• the common cable is a Y cable.
• At least one sensor comprises an integrated connector.
• at least one sensor comprises at least one sensitive element and at least one connector, arranged in a casing.
• At least one sensor comprises at least one sensitive element arranged in a casing and at least one connector fixed to the outside of a casing.
• At least one connector is a female connector.
• At least one connector is a male connector.
• At least one temperature sensor is a thermocouple.
• the assembly is connected to an inverter.
• the invention also relates to an electric machine comprising a sensor assembly according to the invention.
• the invention also relates to the use of the sensor assembly according to the invention in a gearbox.
• FIG. 1 is a schematic representation of a sensor assembly according to the invention
• FIG. 2 is a schematic representation of a) the inductive sensor, b) the temperature sensor, according to one embodiment of the invention
• FIG. 3 is a schematic representation of a) the inductive sensor, b) the temperature sensor, according to another embodiment of the invention.
• the invention relates to a set of 10 sensors intended to be used with, for example, the inverter 20 of an electric machine or an element of the transmission of a mobility device. More specifically, the set of 10 sensors comprises an inductive technology sensor 30, to measure the position of a rotating element, for example of a rotor relative to a stator, and a temperature sensor 40 to measure, for example, the air and/or winding temperature of an electrical machine. The information is then transmitted to the inverter 20.
• the set of 10 sensors is connected to an inverter 20.
• each of the sensors 30, 40 according to the invention is formed by at least one housing 33, 43.
• a casing 33, 43 is an element of the type, for example a box, container or envelope containing the sensitive element of the sensor. More specifically, the case comprises walls, a cover and a base if necessary, between which is arranged at least the sensitive element.
• the casing 33, 43 is a casing 33, 43 made of plastic material.
• the housing 33, 43 is made of any material allowing its integration in an engine or gearbox environment, that is to say in an environment with high temperatures and difficult conditions. .
• the inductive technology sensor 30 comprises at least one sensitive element 36 which is arranged in a first casing 33 and the temperature sensor 40 comprises at least sensitive element 46 which is arranged in a second casing 43.
• the term sensor thus means an assembly formed by at least one casing and one sensitive element for carrying out the measurement arranged in the casing.
• the sensitive element 36 of the inductive sensor 30 is formed by at least one printed circuit board 35 (PCB for Print Circuit Board according to English terminology).
• the inductive technology sensor 30 comprises at least one sensitive element 36 arranged on the electronic card 35.
• the sensitive element 36 of the inductive sensor is formed by at least one conductive antenna which serves as a transmitting antenna. and at least one receiving antenna.
• the card 35 comprising the receiving antenna is thus placed opposite a moving target arranged on a rotating element so as to be able to determine the position of the rotating element, via a transmitting antenna.
• the rotating element is the rotor of the electric machine.
• the temperature sensor 40 comprises at least one sensitive element 46 which is a CTN.
• the temperature sensor 40 comprises at least one sensitive element 46 which is a thermocouple.
• each of the sensors 30, 40 comprises a connector 31, 41, 31', 41'.
• the connector 31 of the inductive sensor 30 and the connector 41 of the temperature sensor 40 are connected by a single set 22 of cables, that is to say at least one common cable 22, to a connector 21 of the electrical machine and for example to the inverter 20.
• the connector 21 of the machine is adapted to make the connection with each of the sensors.
• the inverter 20, and the two sensors 30, 40 are connected by an element 22 of triple connection making it possible to connect each of the elements together. More specifically, the inverter 20 and the two sensors 30, 40 are connected with a harness making it possible to connect the two sensors to each other and each of the sensors to the inverter, via the connectors 21, 31, 41.
• the harness 22 is a Y-cable.
• At least one sensor 30, 40 comprises an integrated connector 31, 41.
• an integrated connector is a connector without cables or other connection wires which is connected directly to the sensor and allows the connection of the sensor with at least one other element, for example an inverter for an electric machine.
• the inductive technology sensor 30 comprises a first connector 31 integrated with the inductive sensor 30, and the temperature sensor 40 comprises a second connector 41 integrated with the temperature sensor 40.
• At least one sensitive element 36, 46 and at least one integrated connector 31, 41 are arranged in a housing 33, 43.
• at least one sensitive element 36, 46 is arranged in a housing 33, 43 and at least one connector 31, 41 is fixed to the outside of a housing 33, 43.
• a sensitive element 36, 46 and an integrated connector 31, 41 are placed in a casing 33, 43 and a sensitive element 36, 46 is placed in a casing 33, 43 and a connector 31 , 41 is fixed to the outside of a box 33, 43.
• At least one connector 31, 41 is a female connector.
• At least one connector 31, 41 is a male connector.
• the temperature sensor 40 measures the temperature of the surrounding air.
• This type of configuration is for example used for an electric machine whose cooling is done with water.
• the temperature sensor 40 measures the temperature of the winding. This measurement is carried out via contact with a thermally conductive blade. This type of configuration is for example used for an electric machine whose cooling is done with air or oil.
• the temperature sensor 40 is used to measure the temperature of the busbar of the electrical machine.

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Measuring Temperature Or Quantity Of Heat (AREA)
• Inverter Devices (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=80225890

Family Applications (1)

Country Status (4)

Family Cites Families (4)

• 2021
  • 2021-10-08 FR FR2110666A patent/FR3128052A1/fr active Pending
• 2022
  • 2022-09-21 CN CN202280067680.1A patent/CN118076859A/zh active Pending
  • 2022-09-21 WO PCT/EP2022/076187 patent/WO2023057210A1/fr not_active Ceased
  • 2022-09-21 EP EP22793696.0A patent/EP4413331A1/de active Pending

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