Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
  • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
  • H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
  • H02M1/00—Details of apparatus for conversion
  • H02M1/32—Means for protecting converters other than automatic disconnection
  • H02M1/327—Means for protecting converters other than automatic disconnection against abnormal temperatures

Definitions

• the present invention relates to an inverter which converts the DC energy stored in the electric vehicle battery into the AC current required for motor -that is at different values of current and voltage- to operate depending on the features of the vehicle, and optimizes the energy used during the conversion.
• the International patent document no. W02020202946 discloses a control and converter unit system for electric vehicle motors.
• the invention comprises a converter unit, a housing, a circuit board placed in the housing, a cover mounted on the case to protect the wiring connecting the circuit board to an external power supply device from external factors.
• the related case comprises an opening on one side in the first direction and a bottom surface positioned on the first direction on its other side and orthogonal to the first direction, and an open-end surface formed by an end surface that surrounds the outer periphery of the case. At least a part of the open-end surface is inclined with respect to the bottom surface.
• An object of the present invention is to realize an inverter which converts the DC energy stored in the electric vehicle battery into the AC current required for motor that is at different values of current and voltage to operate depending on the features of the vehicle, and optimizes the energy used during the conversion.
• Figure 1 is an exploded view of an inverter for optimizing the energy used in the inventive electric vehicles.
• the components illustrated in the figures are individually numbered, where the numbers refer to the following:
• the inventive inverter (1) for optimizing the conversion of DC energy stored in electric vehicle motors into AC current comprises at least one inverter bottom cover (2) which enables to protect the elements placed inside thereof from external influences; at least one inverter top cover (3) which enables to protect the elements placed inside thereof from external influences and is placed so as to correspond to the inverter bottom cover (2); and at least one HV connection cover (4) which is located on the inverter top cover (3) and allows connection to the area remaining inside the inverter bottom and top covers (2, 3); at least one mainboard (5) which enables the switching of the transistors located inside by communicating with the external parts within the vehicle, and enables the operation of a predetermined control algorithm by processing the data received from the sensors; at least one transistor (6) which allows current to pass through it by means of its conductive structure by being used in electronic circuits, and is configured to provide voltage and current gain by increasing the current and voltage related to the current passing through it; at least one cooling channel (7) which enables the rejection of the heat generated on the mainboard (5) and the transistor (6) by
• the inverter bottom cover (2) included in the inventive inverter (1) enables to protect the elements therein from external influences by being complemented by the inverter top cover (3) in such a way that they correspond to each other, and to reject the heat generated by the elements therein.
• the inverter top cover (3) included in the inventive inverter (1) enables to protect the elements therein from external influences by being complemented by the inverter bottom cover (2) in such a way that they correspond to each other, and to reject the heat generated by the elements therein.
• the inverter top cover (3) has at least one HV connection cover (4) thereon, and enables an external connection to be established to the closed container formed together with the inverter bottom cover (2). Therefore, it is ensured that both the elements are protected and the unit is cooled from the metal body in the closed container formed with the help of the bottom and top covers (2, 3).
• the HV connection cover (4) included in the inventive inverter (1) is located on the inverter top cover (3), and enables the connection of the positive and negative connection cables coming out from at least one battery of the electric vehicle.
• the HV connection cover (4) comprises an HV interlock connector that allows the positive and negative connection cables coming out of the battery to be connected onto it. Therefore, the connection of the cables coming out from the battery is established inside the closed container formed by the inverter bottom and top covers (2, 3).
• the mainboard (5) included in the inventive inverter (1) is configured to enable the control of the transistor (6) switching by processing the data received from the sensors and operating it on a predetermined control algorithm by being located in the closed container formed by using the bottom and top cover (2, 3) of the inverter. Therefore, it is ensured that the control of the currents and voltages generated on the transistors (6) is achieved with the help of a single mainboard (5).
• the transistor (6) included in the inventive inverter (1) is an IGBT transistor (Insulated - Gate Bipolar Transistor) configured to obtain gain by increasing the voltage and current passing through it.
• the transistor (6) is in connection with the mainboard (5), and enables the current and voltage passing through it to be controlled via a control algorithm operated by the mainboard (5) by monitoring the current and voltage passing through it.
• the cooling channel (7) included in the inventive inverter (1) is a liquid-cooled channel that allows the heat generated on the transistor (6) to be rejected.
• the cooling channel (7) allows the heat generated on the transistor (6) to be rejected by being located at the bottom of the transistor (6). Therefore, it is ensured that the heat generated during the operation of the transistor (6) is rejected from a small package via the cooling channel (7).
• the flux concentrator core (8) included in the inventive inverter (1) comprises a sensor that enables the mainboard (5) to operate the control algorithm during the conversion of the DC current received from the battery into AC current, and to perform instantaneous current measurements such as peak current value, current sensitivity, reaction rate.
• the flux concentrator core (8) enables to convert the measurements related to the concentrated magnetic flux it receives by means of the sensors it has, into current values via the mainboard (5). Therefore, it is ensured that the current values related to the motor phases that enable the control algorithm of the mainboard (5) to be operated are transmitted to the mainboard (5) by determining them.
• the capacitor (9) included in the inventive inverter (1) is a DC-Link capacitor capable of storing electric charge and providing specific currents, by considering the required current demand, battery voltage, operating temperature and unit mechanics. Therefore, with the help of the capacitor (9) formed, it is ensured that the noise emission to the environment is prevented and the lifespan of the transistor (6) is extended by operating with the switching principle of the electronic load at high frequency during the operation of the inverter (1).
• the input busbar (10) included in the inventive inverter (1) enables the control of the electrical energy coming from the battery of the vehicle and passing through it by ensuring the connection of the capacitor (9).
• the input busbar (10) has a filter block located thereon and prevents the generation of noise on the HV connection cover (4).
• the input busbar (10) has at least one flux concentrator core (8) on each connection, and enables the damping of electronic noise generated by the current passing through it.
• the output busbar (11) included in the inventive inverter (1) enables the controlled current created to be transmitted to the motor phases of the vehicle by operating the control algorithm via the mainboard (5).
• the output busbar (11) has a connector that allows the position sensor of the electric motor to be connected thereto.
• the inventive inverter (1) enables the conversion of the DC energy current stored on the battery of electric vehicles, into the AC current required for motor to operate.
• a closed container is formed to protect the elements inside the inverter (1) from external influences and to allow the rejection of the heat generated inside by joining the bottom and top connection covers (2, 3) in such a way that they correspond to each other.
• the connection of the positive and negative connection cables coming out from the battery is established inside the closed container via the HV connection cover (4) on the top connection cover (3). By means of the connection established via the HV connection cover (4), it is ensured that the DC current received from the battery is transmitted into the inverter (1).
• the mainboard (5) processes the current and voltage data received from the transistors (6) over a predetermined control algorithm by being located inside the closed container and controls the operation of the transistors (6).
• the transistor (6) is configured to provide a gain by amplifying the voltage and current values passing through it and it is controlled by the mainboard (5). It is ensured that the heat generated on the transistors (6) is rejected via a cooling channel (7) placed at the bottom of the transistors (6).
• the flux concentrator core (8) transmits the measurements to the mainboard (5) by converting them into current values in such a way that they can be used on the mainboard (5) by enabling the measurements of the current values such as instantaneous peak current value, current sensitivity, reaction speed which are required for the control algorithm carried out during the conversion of the DC current into AC current by the mainboard (5).
• the capacitor (9) enables the electric charge to be stored on it depending on the current demand, battery voltage, operating temperature and unit mechanics required for the motor to operate thereon.
• the input busbar (10) enables the control of the electrical energy passing through it by ensuring the connection of it over the battery into the closed container formed by the bottom and top inverter covers (2, 3).
• connection of the energy converted into AC current to the motor phases is realized by controlling the current passing through the output busbar (11) via the mainboard (5). Furthermore, there is a connector located on the output busbar (11) that allows the position sensor of the electric motor to be connected, and it enables the related data to be shared with the mainboard (5).

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Electric Propulsion And Braking For Vehicles (AREA)
• Inverter Devices (AREA)
• Control Of Ac Motors In General (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=92972608

Family Applications (1)

Country Status (3)

Family Cites Families (3)

• 2023
  • 2023-04-07 TR TR2023/003832A patent/TR2023003832A2/tr unknown
• 2024
  • 2024-04-05 WO PCT/TR2024/050368 patent/WO2024210876A2/en not_active Ceased
  • 2024-04-05 EP EP24785486.2A patent/EP4690449A2/de active Pending

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