WO2021223114A1 - Transformateur et procédé de fabrication de transformateur - Google Patents

Transformateur et procédé de fabrication de transformateur Download PDF

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Publication number
WO2021223114A1
WO2021223114A1 PCT/CN2020/088815 CN2020088815W WO2021223114A1 WO 2021223114 A1 WO2021223114 A1 WO 2021223114A1 CN 2020088815 W CN2020088815 W CN 2020088815W WO 2021223114 A1 WO2021223114 A1 WO 2021223114A1
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WO
WIPO (PCT)
Prior art keywords
secondary winding
transformer
circuit
winding
rectifier circuit
Prior art date
Application number
PCT/CN2020/088815
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English (en)
Chinese (zh)
Inventor
刘佩甲
赵德琦
吴壬华
Original Assignee
深圳欣锐科技股份有限公司
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 深圳欣锐科技股份有限公司 filed Critical 深圳欣锐科技股份有限公司
Priority to PCT/CN2020/088815 priority Critical patent/WO2021223114A1/fr
Priority to CN202080004074.6A priority patent/CN112470241B/zh
Publication of WO2021223114A1 publication Critical patent/WO2021223114A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/025—Constructional details relating to cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/42—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties

Definitions

  • This application relates to the field of electric vehicle charging technology, and in particular to a transformer and a manufacturing method of the transformer.
  • the vehicle-mounted power battery is charged by the vehicle-mounted charger, and during power transmission, it is often necessary to isolate and transmit energy through a transformer.
  • the coil of the transformer usually uses flying leads or copper wires to hang the pins on the transformer frame pins and then weld them to the circuit board to form a current loop to achieve the purpose of power transmission.
  • the circuit design in this way is complicated.
  • the embodiment of the present application provides a transformer and a method for manufacturing the transformer.
  • the implementation of the embodiment of the present application reduces the complexity of the circuit.
  • the first aspect of the embodiments of the present application provides a transformer, the transformer is placed in a groove made of a metal shell, and the metal shell is grounded;
  • the transformer includes a transformer circuit and a rectifier circuit
  • the input terminal of the transformer circuit is connected to a power source, the first output terminal of the transformer circuit is connected to the input terminal of the rectifier circuit, and the second output terminal of the transformer circuit is electrically connected to the metal casing;
  • the transformer circuit is used to transmit the output current of the power supply to the rectifier circuit
  • the first output terminal of the rectifier circuit is connected to a low-voltage battery, and the second output terminal of the rectifier circuit is electrically connected to the metal casing;
  • the rectifier circuit is used to rectify and filter the output current of the transformer circuit, so as to transmit the output current to the low-voltage battery through the first output terminal of the rectifier circuit.
  • the transformer circuit includes a primary winding, an iron core, and a secondary winding, wherein the primary winding and the secondary winding are arranged on the iron core;
  • the primary winding is connected to the power source
  • the first output end of the secondary winding is connected to the input end of the rectifier circuit
  • the second output end of the secondary winding is electrically connected to the metal casing.
  • the rectifier circuit includes a diode D1 and a capacitor C1;
  • the anode of the diode D1 is connected to the first output end of the secondary winding, the cathode of the diode D1 is connected to the first end of the capacitor C1, and the second end of the capacitor C1 is electrically connected to the metal casing, The connecting line between the cathode of the diode D1 and the first end of the capacitor C1 is connected to the low-voltage battery.
  • the input terminal of the rectifier circuit includes a first input terminal and a second input terminal
  • the transformer circuit includes a primary winding, an iron core, a first secondary winding, and a second input terminal.
  • the primary winding is connected to the power source
  • the first output terminal of the first secondary winding is connected to the first input terminal of the rectifier circuit
  • the second output end of the first secondary winding is electrically connected to the metal casing
  • the first output end of the second secondary winding is electrically connected to the metal casing
  • the second output terminal of the second secondary winding is connected to the second input terminal of the rectifier circuit.
  • the low-voltage battery includes a first low-voltage battery and a second low-voltage battery
  • the rectifier circuit includes a diode D1, a diode D2, a capacitor C1, and a capacitor C2;
  • the anode of the diode D1 is connected to the first output end of the first secondary winding, the cathode of the diode D1 is connected to the first end of the capacitor C1, and the second end of the capacitor C1 is electrically connected to the metal casing. Connected, the connecting line between the cathode of the diode D1 and the first end of the capacitor C1 is connected to the first low-voltage battery;
  • the anode of the diode D2 is connected to the second output end of the second secondary winding, the cathode of the diode D2 is connected to the first end of the capacitor C2, and the second end of the capacitor C2 is electrically connected to the metal casing. Connected, the connecting line between the cathode of the diode D2 and the first end of the capacitor C2 is connected to the second low-voltage battery.
  • a second aspect of the embodiments of the present application provides a method for manufacturing a transformer, which is applied to the transformer described in the first aspect, wherein the transformer is placed in a groove made of a metal shell, and the metal shell is grounded;
  • the transformer includes a transformer circuit and a rectifier circuit
  • the transformer circuit is used to transmit the output current of the power supply to the rectifier circuit
  • the rectifier circuit is used to rectify and filter the output current of the transformer circuit, so as to transmit the output current to the low-voltage battery through the first output terminal of the rectifier circuit.
  • the transformer circuit includes a primary winding, an iron core, and a secondary winding, wherein the primary winding and the secondary winding are arranged on the iron core;
  • the connecting the input end of the transformer circuit to a power source includes:
  • the connecting the first output terminal of the transformer circuit to the input terminal of the rectifier circuit includes:
  • the electrically connecting the second output terminal of the transformer circuit with the metal casing includes:
  • the second output end of the secondary winding is electrically connected to the metal shell.
  • the input terminal of the rectifier circuit includes a first input terminal and a second input terminal
  • the transformer circuit includes a primary winding, an iron core, a first secondary winding, and a second input terminal. Two secondary windings, wherein the primary winding and the first secondary winding and the second secondary winding are respectively arranged on the iron core;
  • the connecting the input end of the transformer circuit to a power source includes:
  • the connecting the first output terminal of the transformer circuit to the input terminal of the rectifier circuit includes:
  • the electrically connecting the second output terminal of the transformer circuit with the metal casing includes:
  • the second output end of the first secondary winding is electrically connected to the metal casing; the first output end of the second secondary winding is electrically connected to the metal casing.
  • the metal shell is used as a part of the current loop conductor, so that the metal shell has the function of heat dissipation and the purpose of transmitting power, reducing the related welding and material costs, while avoiding In this way, the wires are led out and grounded directly through the metal shell, which reduces the complexity of the circuit and correspondingly reduces the production cost.
  • FIG. 1A is a schematic structural diagram of a transformer provided by an embodiment of this application.
  • Fig. 1B is a schematic circuit diagram of a transformer circuit shown in Fig. 1A;
  • FIG. 1C is a schematic circuit diagram of a rectifier circuit shown in FIG. 1A;
  • FIG. 1D is a schematic circuit diagram of another rectifier circuit shown in FIG. 1A;
  • 1E is a schematic circuit diagram of a transformer provided by an embodiment of the application.
  • 1F is a schematic circuit diagram of another transformer provided by an embodiment of the application.
  • Fig. 1G is a schematic circuit diagram of yet another transformer circuit shown in Fig. 1A;
  • FIG. 1H is a schematic circuit diagram of another rectifier circuit shown in FIG. 1A;
  • FIG. 1I is a schematic circuit diagram of another rectifier circuit shown in FIG. 1A;
  • FIG. 1J is a schematic circuit diagram of another transformer provided by an embodiment of this application.
  • FIG. 1K is a schematic circuit diagram of another transformer provided by an embodiment of this application.
  • FIG. 2 is a schematic flowchart of a method for manufacturing a transformer according to an embodiment of the application.
  • FIG. 1A is a schematic structural diagram of a transformer 100 according to an embodiment of the application.
  • an embodiment of the present application provides a transformer 100, the transformer 100 is placed in a groove made of a metal shell 105, and the metal shell 105 is grounded;
  • the transformer 100 includes a transformer circuit 101 and a rectifier circuit 102;
  • the input terminal of the transformer circuit 101 is connected to the power supply 103, the first output terminal of the transformer circuit 101 is connected to the input terminal of the rectifier circuit 102, and the second output terminal of the transformer circuit 101 is connected to the metal housing 105 electrical connection;
  • the transformer circuit 101 is used to transmit the output current of the power supply 103 to the rectifier circuit 102;
  • the first output terminal of the rectifier circuit 102 is connected to the low-voltage battery 104, and the second output terminal of the rectifier circuit 102 is electrically connected to the metal casing 105;
  • the rectifier circuit 102 is used to rectify and filter the output current of the transformer circuit 101, so as to transmit the output current to the low-voltage battery 104 through the first output terminal of the rectifier circuit 102.
  • the power source 103 is 220v alternating current.
  • the second output end of the transformer circuit is electrically connected to the metal shell, and at the same time, the second end of the rectifier circuit is also electrically connected to the metal shell, so that the transformer circuit, The rectifier circuit and the metal shell form a complete conductive loop, which not only makes the metal shell a conductor, but also grounds the metal shell, which reduces the complexity of the circuit and saves costs while protecting the safety of users.
  • the transformer circuit 101 includes a primary winding 1011, an iron core 1013, and a secondary winding 1012, wherein the primary winding 1011 and the secondary winding 1012 are arranged On the iron core 1013;
  • the primary winding 1011 is connected to the power source 103;
  • the first output terminal of the secondary winding 1012 is connected to the input terminal of the rectifier circuit 102;
  • the second output end of the secondary winding 1012 is electrically connected to the metal shell 105.
  • the coil structure of the primary winding 1011 and the secondary winding 1012 is a sandwich winding structure, and the sandwich winding structure includes at least one of the following: the primary winding 1011, the secondary winding 1012, and The primary winding 1011, the secondary winding 1012, the primary winding 1011 and the secondary winding 1012.
  • the primary winding 1011 has 30 turns and the secondary winding 1012 has 10 turns.
  • the sandwich winding method is adopted. First, 15 turns of the primary winding 1011 are wound, then 10 turns of the secondary winding 1012 are wound, and finally The remaining 15 turns of the primary winding 1011.
  • the primary winding 1011 has 10 turns and the secondary winding 1012 has 10 turns.
  • the sandwich winding method is adopted. First, 5 turns of the secondary winding 1012 are wound, and then 10 turns of the primary winding 1012 are wound. Make the remaining 5 turns of the secondary winding 1012.
  • the rectifier circuit 102 includes a diode D1 and a capacitor C1;
  • the anode of the diode D1 is connected to the first output end of the secondary winding 1012, the cathode of the diode D1 is connected to the first end of the capacitor C1, and the second end of the capacitor C1 is electrically connected to the metal casing 105. Connected, the connecting line between the cathode of the diode D1 and the first end of the capacitor C1 is connected to the low-voltage battery 104.
  • the diode D1 is a rectifier diode
  • the low-voltage battery 104 may be, for example, a battery with a voltage of 14V.
  • the rectifier circuit 102 includes a transistor Q1 and a capacitor C1; the source of the transistor Q1 is connected to the first output end of the secondary winding 1012, and the drain of the transistor Q1 is connected to the first output terminal of the secondary winding 1012.
  • the first end of the capacitor C1 and the second end of the capacitor C1 are electrically connected to the metal casing 105, and the connecting line between the cathode of the diode D1 and the drain of the transistor Q1 is connected to the low-voltage battery 104.
  • the transistor Q1 is a P-type primary MOSFET, and the low-voltage battery 104 may be, for example, a battery with a voltage of 14V.
  • FIG. 1E is a schematic circuit diagram of a transformer 100 provided by an embodiment of the present application.
  • a transformer 100 is provided.
  • the transformer 100 is placed in a groove made of a metal shell 105.
  • the transformer 100 includes a transformer circuit 101 and a rectifier circuit 102; the input terminal of the transformer circuit 101 is connected to the power source 103, and the first output terminal of the transformer circuit 101 is connected to the The input terminal of the rectifier circuit 102, and the second output terminal of the transformer circuit 101 is electrically connected to the metal casing 105; the transformer circuit 101 is used to transmit the output current of the power supply 103 to the rectifier circuit 102 The first output terminal of the rectifier circuit 102 is connected to the low-voltage battery 104, and the second output terminal of the rectifier circuit 102 is electrically connected to the metal casing 105; the rectifier circuit 102 is used to connect the transformer circuit 101 The output current is rectified and filtered to transfer the output current to the low-voltage battery 104 through the first output terminal of the rectifier circuit 102 for charging.
  • the transformer circuit 101 includes a primary winding 1011, an iron core 1013, and a secondary winding 1012, wherein the primary winding 1011 and the secondary winding 1012 are arranged on the iron core 1013; the original The side winding 1011 is connected to the power supply 103; the first output end of the secondary winding 1012 is connected to the input end of the rectifier circuit 102; the second output end of the secondary winding 1012 is electrically connected to the metal casing 105.
  • the coil structure of the primary winding 1011 and the secondary winding 1012 is a sandwich winding structure, and the sandwich winding structure includes at least one of the following: the primary winding 1011 and the secondary winding 1012 And the primary winding 1011, the secondary winding 1012, the primary winding 1011, and the secondary winding 1012.
  • the primary winding 1011 has 30 turns and the secondary winding 1012 has 10 turns.
  • the sandwich winding method is adopted. First, 15 turns of the primary winding 1011 are wound, then 10 turns of the secondary winding 1012 are wound, and finally The remaining 15 turns of the primary winding 1011.
  • the primary winding 1011 has 10 turns and the secondary winding 1012 has 10 turns.
  • the sandwich winding method is adopted. First, 5 turns of the secondary winding 1012 are wound, and then 10 turns of the primary winding 1012 are wound. Make the remaining 5 turns of the secondary winding 1012.
  • the rectifier circuit includes a diode D1 and a capacitor C1; the anode of the diode D1 is connected to the first output end of the secondary winding 1012, the cathode of the diode D1 is connected to the first end of the capacitor C1, the The second end of the capacitor C1 is electrically connected to the metal casing 105, and the connection line between the cathode of the diode D1 and the first end of the capacitor C1 is connected to the low-voltage battery 104.
  • the diode D1 is a rectifier diode.
  • the power source 103 is 220V alternating current
  • the low-voltage battery 104 may be, for example, a battery with a voltage of 14V.
  • FIG. 1F is a schematic circuit diagram of another transformer 100 provided by an embodiment of the present application.
  • An embodiment of the present application provides a transformer 100.
  • the transformer 100 is placed in a recess made of a metal shell 105. In the tank, the metal shell 105 is grounded;
  • the transformer 100 includes a transformer circuit 101 and a rectifier circuit 102; the input end of the transformer circuit 101 is connected to the power source 103, and the first output end of the transformer circuit 101 is connected to the The input terminal of the rectifier circuit 102, the second output terminal of the transformer circuit 101 is electrically connected to the metal casing 105;
  • the transformer circuit 101 is used to transmit the output current of the power supply 103 to the rectifier circuit 102;
  • the first output terminal of the rectifier circuit 102 is connected to a low-voltage battery 104, and the second output terminal of the rectifier circuit 102 is electrically connected to the metal casing 105;
  • the rectifier circuit 102 is used to connect the transformer circuit 101
  • the output current is rectif
  • the transformer circuit 101 includes a primary winding 1011, an iron core 1013, and a secondary winding 1012, wherein the primary winding 1011 and the secondary winding 1012 are arranged on the iron core 1013; the original The side winding 1011 is connected to the power supply 103; the first output end of the secondary winding 1012 is connected to the input end of the rectifier circuit 102; the second output end of the secondary winding 1012 is electrically connected to the metal casing 105.
  • the coil structure of the primary winding 1011 and the secondary winding 1012 is a sandwich winding structure, and the sandwich winding structure includes at least one of the following: the primary winding 1011, the secondary winding 1012, and The primary winding 1011, the secondary winding 1012, the primary winding 1011 and the secondary winding 1012.
  • the primary winding 1011 has 30 turns and the secondary winding 1012 has 10 turns.
  • the sandwich winding method is adopted. First, 15 turns of the primary winding 1011 are wound, then 10 turns of the secondary winding 1012 are wound, and finally The remaining 15 turns of the primary winding 1011.
  • the primary winding 1011 has 10 turns and the secondary winding 1012 has 10 turns.
  • the sandwich winding method is adopted. First, 5 turns of the secondary winding 1012 are wound, and then 10 turns of the primary winding 1012 are wound. Make the remaining 5 turns of the secondary winding 1012.
  • the rectifier circuit 102 includes a transistor Q1 and a capacitor C1; the source of the transistor Q1 is connected to the first output terminal of the secondary winding 1012, and the drain of the transistor Q1 is connected to the first terminal of the capacitor C1
  • the second end of the capacitor C1 is electrically connected to the metal casing 105, and the connecting line between the cathode of the diode D1 and the drain of the transistor Q1 is connected to the low-voltage battery 104.
  • the transistor Q1 is a P-type primary MOSFET.
  • the power source 103 is 220V alternating current
  • the low-voltage battery 104 may be, for example, a battery with a voltage of 14V.
  • the input terminal of the rectifier circuit 102 includes a first input terminal and a second input terminal
  • the transformer circuit 101 includes a primary winding 1011, an iron core 1013, and a first input terminal.
  • the primary winding 1011 is connected to the power source 103;
  • the first output terminal of the first secondary winding 1012 is connected to the first input terminal of the rectifier circuit 102;
  • the second output end of the first secondary winding 1012 is electrically connected to the metal shell 105;
  • the first output end of the second secondary winding 1014 is electrically connected to the metal shell 105;
  • the second output terminal of the second secondary winding 1014 is connected to the second input terminal of the rectifier circuit 102.
  • the number of turns of the first secondary winding and the second secondary winding may be the same or different.
  • the coil structure of the primary winding 1011 and the first secondary winding 1012 is a sandwich winding structure
  • the sandwich winding structure of the primary winding 1011 and the first secondary winding 1012 is at least It includes one of the following: the primary winding 1011, the first secondary winding 1012, and the primary winding 1011, the first secondary winding 1012, the primary winding 1011, and the first secondary winding The winding 1012.
  • the coil structure of the primary winding 1011 and the second secondary winding 1014 is a sandwich winding structure, and the sandwich winding structure of the primary winding 1011 and the second secondary winding 1014 includes at least one of the following: The primary winding 1011, the second secondary winding 1014 and the primary winding 1011, the second secondary winding 1014, the primary winding 1011 and the second secondary winding 1014.
  • the primary winding has 30 turns and the secondary winding has 10 turns.
  • the sandwich winding method is used to first wind 15 turns of the primary winding, then 10 turns of the secondary winding, and finally the remaining primary winding. 15 turns under.
  • the primary winding has 10 turns and the secondary winding has 10 turns.
  • the sandwich winding method is used to first wind 5 turns of the secondary winding, then 10 turns of the primary winding, and finally the secondary winding The remaining 5 turns.
  • the power source 103 is 220v alternating current.
  • the low-voltage battery 104 includes a first low-voltage battery 1041 and a second low-voltage battery 1042, and the rectifier circuit 102 includes a diode D1, a diode D2, a capacitor C1, and a capacitor C2;
  • the anode of the diode D1 is connected to the first output end of the first secondary winding 1012, the cathode of the diode D1 is connected to the first end of the capacitor C1, and the second end of the capacitor C1 is connected to the metal casing 105 is electrically connected, and the connecting line between the cathode of the diode D1 and the first end of the capacitor C1 is connected to the first low-voltage battery 1041;
  • the anode of the diode D2 is connected to the second output end of the second secondary winding 1014, the cathode of the diode D2 is connected to the first end of the capacitor C2, and the second end of the capacitor C2 is connected to the metal casing 105 is electrically connected, and the connecting line between the cathode of the diode D2 and the first end of the capacitor C2 is connected to the second low-voltage battery 1042.
  • the diode D1 and the diode D2 are rectifier diodes.
  • the first low-voltage battery 1041 and the second low-voltage battery 1042 may both be batteries with a voltage of 14, for example.
  • the output current obtained by the first low-voltage battery is the same as the output current obtained by the second low-voltage battery; when the first secondary winding and the second secondary winding have the same number of turns When the number of turns of the secondary winding is different, then the output current obtained by the first low-voltage battery is different from the output current obtained by the second low-voltage battery.
  • the low-voltage battery 104 includes a first low-voltage battery 1041 and a second low-voltage battery 1042, and the rectifier circuit 102 includes a transistor Q1, a transistor Q2, a capacitor C1, and a capacitor C2;
  • the source of the transistor Q1 is connected to the first output end of the first secondary winding 1012, the drain of the transistor Q1 is connected to the first end of the capacitor C1, and the second end of the capacitor C1 is connected to the
  • the metal casing 105 is electrically connected, and the connection line between the drain of the transistor Q1 and the first end of the capacitor C1 is connected to the first low-voltage battery 1041;
  • the source of the transistor Q2 is connected to the second output terminal of the second secondary winding 1014, the drain of the transistor Q2 is connected to the first terminal of the capacitor C2, and the second terminal of the capacitor C2 is connected to the second output terminal of the second secondary winding 1014.
  • the metal casing 105 is electrically connected, and the connection line between the drain of the transistor Q2 and the first end of the capacitor C2 is connected to the second low-voltage battery 1042.
  • the transistor Q1 and the transistor Q2 are P-type primary MOSFETs.
  • the first low-voltage battery 1041 and the second low-voltage battery 1042 may both be batteries with a voltage of 14, for example.
  • the output current obtained by the first low-voltage battery is the same as the output current obtained by the second low-voltage battery; when the first secondary winding and the second secondary winding have the same number of turns When the number of turns of the secondary winding is different, then the output current obtained by the first low-voltage battery is different from the output current obtained by the second low-voltage battery.
  • FIG. 1J is a schematic circuit diagram of another transformer 100 provided by an embodiment of the present application, and another transformer 100 provided by an embodiment of the present application is made by placing the transformer 100 in a metal shell 105 In the groove, the metal shell 105 is grounded; the transformer 100 includes a transformer circuit 101 and a rectifier circuit 102; the input end of the transformer circuit 101 is connected to the power source 103, and the first output end of the transformer circuit 101 is connected to The input terminal of the rectifier circuit 102 and the second output terminal of the transformer circuit 101 are electrically connected to the metal casing 105; the transformer circuit 101 is used to transmit the output current of the power supply 103 to the rectifier Circuit 102; the first output terminal of the rectifier circuit 102 is connected to the low-voltage battery 104, and the second output terminal of the rectifier circuit 102 is electrically connected to the metal casing 105; the rectifier circuit 102 is used to connect the transformer circuit The output current of 101 is rectified and filtered to transmit the output current to the low-volt
  • the input terminal of the rectifier circuit 102 includes a first input terminal and a second input terminal
  • the transformer circuit 101 includes a primary winding 1011, an iron core 1013, a first secondary winding 1012, and a second secondary winding 1014.
  • the primary winding 1011 and the first secondary winding 1012 and the second secondary winding 1014 are respectively arranged on the iron core 1013; the primary winding 1011 is connected to the power source 103;
  • the first output terminal of a secondary winding 1012 is connected to the first input terminal of the rectifier circuit 102; the second output terminal of the first secondary winding 1012 is electrically connected to the metal casing 105; the second secondary winding
  • the first output end of the winding 1014 is electrically connected to the metal shell 105; the second output end of the second secondary winding 1014 is connected to the second input end of the rectifier circuit 102.
  • the number of turns of the first secondary winding and the second secondary winding may be the same or different.
  • the coil structure of the primary winding 1011 and the first secondary winding 1012 is a sandwich winding structure
  • the sandwich winding structure of the primary winding 1011 and the first secondary winding 1012 is at least It includes one of the following: the primary winding 1011, the first secondary winding 1012, and the primary winding 1011, the first secondary winding 1012, the primary winding 1011, and the first secondary winding The winding 1012.
  • the coil structure of the primary winding 1011 and the second secondary winding 1014 is a sandwich winding structure, and the sandwich winding structure of the primary winding 1011 and the second secondary winding 1014 includes at least one of the following: The primary winding 1011, the second secondary winding 1014 and the primary winding 1011, the second secondary winding 1014, the primary winding 1011 and the second secondary winding 1014.
  • the primary winding has 30 turns and the secondary winding has 10 turns.
  • the sandwich winding method is used to first wind 15 turns of the primary winding, then 10 turns of the secondary winding, and finally the remaining primary winding. 15 turns under.
  • the primary winding has 10 turns and the secondary winding has 10 turns.
  • the sandwich winding method is used to first wind 5 turns of the secondary winding, then 10 turns of the primary winding, and finally the secondary winding The remaining 5 turns.
  • the low-voltage battery 104 includes a first low-voltage battery 1041 and a second low-voltage battery 1042
  • the rectifier circuit 102 includes a diode D1, a diode D2, a capacitor C1, and a capacitor C2;
  • the first output end of the side winding 1012, the cathode of the diode D1 is connected to the first end of the capacitor C1, the second end of the capacitor C1 is electrically connected to the metal casing 105, and the cathode of the diode D1 is connected to the first end of the capacitor C1.
  • the connecting line of the first end of the capacitor C1 is connected to the first low-voltage battery 1041; the anode of the diode D2 is connected to the second output end of the second secondary winding 1014, and the cathode of the diode D2 is connected to the capacitor
  • the first end of C2 and the second end of the capacitor C2 are electrically connected to the metal casing 105, and the connecting line between the cathode of the diode D2 and the first end of the capacitor C2 is connected to the second low-voltage battery 1042.
  • the diode D1 and the diode D2 are rectifier diodes.
  • the first low-voltage battery 1041 and the second low-voltage battery 1042 may be batteries with a voltage of 14, for example, and the power source 103 is an alternating current of 220v.
  • FIG. 1K is a schematic circuit diagram of another transformer 100 provided by an embodiment of the present application, and another transformer 100 provided by an embodiment of the present application is made by placing the transformer 100 in a metal shell 105 In the groove, the metal shell 105 is grounded; the transformer 100 includes a transformer circuit 101 and a rectifier circuit 102; the input terminal of the transformer circuit 101 is connected to the power source 103, and the first output terminal of the transformer circuit 101 is connected to The input terminal of the rectifier circuit 102 and the second output terminal of the transformer circuit 101 are electrically connected to the metal casing 105; the transformer circuit 101 is used to transmit the output current of the power supply 103 to the rectifier Circuit 102; the first output terminal of the rectifier circuit 102 is connected to a low-voltage battery 104, and the second output terminal of the rectifier circuit 102 is electrically connected to the metal casing 105; the rectifier circuit 102 is used to connect the transformer circuit The output current of 101 is rectified and filtered to transmit the output current to the low-
  • the input terminal of the rectifier circuit 102 includes a first input terminal and a second input terminal
  • the transformer circuit 101 includes a primary winding 1011, an iron core 1013, a first secondary winding 1012, and a second secondary winding 1014.
  • the primary winding 1011 and the first secondary winding 1012 and the second secondary winding 1014 are respectively arranged on the iron core 1013; the primary winding 1011 is connected to the power source 103;
  • the first output terminal of a secondary winding 1012 is connected to the first input terminal of the rectifier circuit 102; the second output terminal of the first secondary winding 1012 is electrically connected to the metal casing 105; the second secondary winding
  • the first output end of the winding 1014 is electrically connected to the metal shell 105; the second output end of the second secondary winding 1014 is connected to the second input end of the rectifier circuit 102.
  • the number of turns of the first secondary winding and the second secondary winding may be the same or different.
  • the coil structure of the primary winding 1011 and the first secondary winding 1012 is a sandwich winding structure
  • the sandwich winding structure of the primary winding 1011 and the first secondary winding 1012 is at least It includes one of the following: the primary winding 1011, the first secondary winding 1012, and the primary winding 1011, the first secondary winding 1012, the primary winding 1011, and the first secondary winding The winding 1012.
  • the coil structure of the primary winding 1011 and the second secondary winding 1014 is a sandwich winding structure, and the sandwich winding structure of the primary winding 1011 and the second secondary winding 1014 includes at least one of the following: The primary winding 1011, the second secondary winding 1014 and the primary winding 1011, the second secondary winding 1014, the primary winding 1011 and the second secondary winding 1014.
  • the primary winding has 30 turns and the secondary winding has 10 turns.
  • the sandwich winding method is used to first wind 15 turns of the primary winding, then 10 turns of the secondary winding, and finally the remaining primary winding. 15 turns under.
  • the primary winding has 10 turns and the secondary winding has 10 turns.
  • the sandwich winding method is used to first wind 5 turns of the secondary winding, then 10 turns of the primary winding, and finally the secondary winding The remaining 5 turns.
  • the low-voltage battery 104 includes a first low-voltage battery 1041 and a second low-voltage battery 1042.
  • the rectifier circuit 102 includes a transistor Q1, a transistor Q2, a capacitor C1, and a capacitor C2; the source of the transistor Q1 is connected to the first low-voltage battery.
  • the first output terminal of the secondary winding 1012, the drain of the transistor Q1 is connected to the first terminal of the capacitor C1, the second terminal of the capacitor C1 is electrically connected to the metal casing 105, and the drain of the transistor Q1
  • the connecting line between the first end of the capacitor C1 and the first end of the capacitor C1 is connected to the first low-voltage battery 1041; the source of the transistor Q2 is connected to the second output end of the second secondary winding 1014, and the drain of the transistor Q2
  • the electrode is connected to the first end of the capacitor C2, the second end of the capacitor C2 is electrically connected to the metal shell 105, and the connecting line between the drain of the transistor Q2 and the first end of the capacitor C2 is connected to the The second low voltage battery 1042.
  • the transistor Q1 and the transistor Q2 are P-type primary MOSFETs.
  • the first low-voltage battery 1041 and the second low-voltage battery 1042 may be batteries with a voltage of 14, for example, and the power source 103 is an alternating current of 220v.
  • the output current obtained by the first low-voltage battery is the same as the output current obtained by the second low-voltage battery; when the first secondary winding and the second secondary winding have the same number of turns When the number of turns of the secondary winding is different, then the output current obtained by the first low-voltage battery is different from the output current obtained by the second low-voltage battery.
  • Figure 2 is a schematic flow chart of a method for manufacturing a transformer provided by an embodiment of the present application.
  • the transformer is placed in a groove made of a metal shell, the metal shell is grounded, and the method is applied to the transformer;
  • the transformer includes a transformer circuit and a rectifier circuit
  • Step 201 Connect the input end of the transformer circuit to a power source
  • Step 202 Connect the first output terminal of the transformer circuit to the input terminal of the rectifier circuit;
  • Step 203 Electrically connect the second output terminal of the transformer circuit to the metal casing
  • the transformer circuit is used to transmit the output current of the power supply to the rectifier circuit
  • Step 204 Connect the first output terminal of the rectifier circuit to a low-voltage battery
  • Step 205 Electrically connect the second output terminal of the rectifier circuit to the metal casing
  • the rectifier circuit is used to rectify and filter the output current of the transformer circuit, so as to transmit the output current to the low-voltage battery through the first output terminal of the rectifier circuit.
  • the power supply is 220v alternating current.
  • the low-voltage battery may be a battery with a voltage of 14, for example.
  • the metal shell is used as a part of the current loop conductor, so that the metal shell has the function of heat dissipation and the purpose of transmitting power, reducing the related welding and material costs, while avoiding In this way, the wires are led out and grounded directly through the metal shell, which reduces the complexity of the circuit and correspondingly reduces the production cost.
  • the transformer circuit includes a primary winding, an iron core, and a secondary winding, wherein the primary winding and the secondary winding are arranged on the iron core; and the transformer circuit Connecting the input terminal of the power supply to the power supply includes: connecting the primary winding to the power supply; connecting the first output terminal of the transformer circuit to the input terminal of the rectifier circuit includes: connecting the secondary winding The first output terminal is connected to the input terminal of the rectifier circuit; the electrically connecting the second output terminal of the transformer circuit with the metal casing includes: connecting the second output terminal of the secondary winding with the The metal shell is electrically connected.
  • the coil structure of the primary winding and the secondary winding is a sandwich winding structure
  • the sandwich winding structure includes at least one of the following: the primary winding, the secondary winding, and the primary winding Windings, the secondary winding, the primary winding and the secondary winding.
  • the metal shell is used as a part of the current loop conductor, so that the metal shell has the function of heat dissipation and also transmits power.
  • the purpose of this method is to reduce the related welding, material and other costs, and at the same time, avoid the lead wire and directly ground through the metal shell, reduce the complexity of the circuit, and correspondingly reduce the production cost.
  • the input terminal of the rectifier circuit includes a first input terminal and a second input terminal
  • the transformer circuit includes a primary winding, an iron core, a first secondary winding, and a second secondary winding.
  • the primary winding and the first secondary winding and the second secondary winding are respectively arranged on the iron core
  • the connecting the input end of the transformer circuit to a power source includes: connecting the primary winding The winding is connected to the power supply
  • the connecting the first output terminal of the transformer circuit to the input terminal of the rectifier circuit includes: connecting the first output terminal of the first secondary winding to the first output terminal of the rectifier circuit
  • An input terminal; the second output terminal of the second secondary winding is connected to the second input terminal of the rectifier circuit
  • the electrically connecting the second output terminal of the transformer circuit with the metal casing includes: The second output end of the first secondary winding is electrically connected to the metal casing; the first output end of the second secondary winding is electrically connected to the metal casing.
  • the number of turns of the first secondary winding and the second secondary winding may be the same or different.
  • the coil structure of the primary winding and the first secondary winding is a sandwich winding structure
  • the sandwich winding structure of the primary winding and the first secondary winding includes at least one of the following : The primary winding, the first secondary winding and the primary winding, the first secondary winding, the primary winding and the first secondary winding.
  • the coil structure of the primary winding and the second secondary winding is a sandwich winding structure, and the sandwich winding structure of the primary winding and the second secondary winding includes at least one of the following: the primary winding Winding, the second secondary winding and the primary winding, the second secondary winding, the primary winding and the second secondary winding.
  • the first output end of the second secondary winding is electrically connected to the metal casing by electrically connecting the second output end of the first secondary winding to the metal casing.
  • the connection realizes that the metal shell is used as a part of the current loop conductor, so that the metal shell has the heat dissipation function and the purpose of transmitting power, reducing the related welding and material costs, and at the same time, avoiding the lead wire directly through
  • the metal shell is grounded, which reduces the complexity of the circuit and correspondingly reduces the production cost.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Dc-Dc Converters (AREA)

Abstract

Transformateur et procédé de fabrication d'un transformateur, le transformateur étant placé dans un évidement réalisé dans un boîtier extérieur métallique, et le boîtier extérieur métallique étant connecté à la masse ; le transformateur comprend un circuit de transformation et un circuit de redressement ; une borne d'entrée du circuit de transformation est connectée à une source d'alimentation, une première borne de sortie du circuit de transformation est connectée à une borne d'entrée du circuit de redressement, et une seconde borne de sortie du circuit de transformation est connectée électriquement au boîtier extérieur métallique ; le circuit de transformation est utilisé pour transmettre un courant de sortie de la source d'alimentation au circuit de redressement ; une première borne de sortie du circuit de redressement est connectée à une batterie basse-tension, et une seconde borne de sortie du circuit de redressement est connectée électriquement au boîtier extérieur métallique ; le circuit de redressement est utilisé pour effectuer un redressement et un filtrage sur le courant de sortie du circuit de transformation, de manière à transmettre, au moyen de la première borne de sortie du circuit de redressement, le courant de sortie à la batterie basse-tension pour effectuer une charge. La mise en œuvre d'un mode de réalisation de la présente invention réduit la complexité du circuit.
PCT/CN2020/088815 2020-05-06 2020-05-06 Transformateur et procédé de fabrication de transformateur WO2021223114A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2020/088815 WO2021223114A1 (fr) 2020-05-06 2020-05-06 Transformateur et procédé de fabrication de transformateur
CN202080004074.6A CN112470241B (zh) 2020-05-06 2020-05-06 变压器以及变压器的制造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/088815 WO2021223114A1 (fr) 2020-05-06 2020-05-06 Transformateur et procédé de fabrication de transformateur

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WO2021223114A1 true WO2021223114A1 (fr) 2021-11-11

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080007955A (ko) * 2006-07-19 2008-01-23 엘지전자 주식회사 트랜스포머의 실딩구조
CN202856318U (zh) * 2012-10-24 2013-04-03 深圳市雷博斯科技有限公司 一种变压器反击分流的防雷保护结构
CN103119841A (zh) * 2010-07-26 2013-05-22 X射线光学系统公司 用于高级电子应用及其x射线分析仪应用的紧凑型低噪音电源

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020056605A1 (fr) * 2018-09-18 2020-03-26 深圳欣锐科技股份有限公司 Circuit de chargeur embarqué intégré, procédé de fabrication, et chargeur embarqué intégré

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080007955A (ko) * 2006-07-19 2008-01-23 엘지전자 주식회사 트랜스포머의 실딩구조
CN103119841A (zh) * 2010-07-26 2013-05-22 X射线光学系统公司 用于高级电子应用及其x射线分析仪应用的紧凑型低噪音电源
CN202856318U (zh) * 2012-10-24 2013-04-03 深圳市雷博斯科技有限公司 一种变压器反击分流的防雷保护结构

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CN112470241A (zh) 2021-03-09

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