CN213937764U

CN213937764U - Rectification and EMC module

Info

Publication number: CN213937764U
Application number: CN202023169974.2U
Authority: CN
Inventors: 王晓文; 张志豪
Original assignee: Shenzhen Eastway Integration Co ltd
Current assignee: Shenzhen Eastway Integration Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-08-10
Anticipated expiration: 2030-12-24

Abstract

The utility model relates to a rectification and EMC module, including rectification module and EMC module, EMC module include common mode inductance L1, ann rule electric capacity CX1, common mode inductance L2; on the PCB, the common-mode inductor L1 is arranged in the center of the top layer of the PCB close to the input end HV3 pin and the input end HV4 pin of the module port; the safety capacitor CX1 is arranged in the center of the top layer of the PCB close to the 3 pins and the 4 pins of the common-mode inductor L1; the common-mode inductor L2 is arranged in the middle of the top layer of the PCB close to the other side of the safety capacitor CX 1; the rectifying module is arranged in the center of the top layer of the PCB close to the 3 pins and the 4 pins of the common-mode inductor L2; the resistor is arranged on the bottom layer of the PCB and respectively arranged between the common-mode inductor L1 and the safety capacitor CX1 and between the safety capacitor CX1 and the common-mode inductor L2. The utility model adopts the standard modular design, the occupied space is small, and the volume of the whole machine can be made smaller; independent module layout is easy to control production and process, product yield is improved, integration into each similar scheme design is convenient, repeated design is reduced, and product development cycle is shortened.

Description

Rectification and EMC module

Technical Field

The utility model relates to a circuit module field, especially a rectification and EMC module.

Background

At present, most of rectifying and EMC circuits in the market are independently arranged during PCB layout design, and multiple times of adjustment and trial are needed during design, so that available layout design can be realized through the test.

The existing rectifying and EMC circuit layout design, whether the original design or the old design, must be readjusted and adapted. 1. For example, in PD adapter development, because the frequency of consumer electronics updating is fast, the development period of each product is short, the layout of the existing rectification and EMC circuit parts is customized one by one, which cannot be directly used, and is not beneficial to shortening the development period of the product; 2. along with market and technical requirements, the size of the adapter is smaller and smaller, the power density is also improved, and the layout design of the existing rectifying and EMC circuit part needs to occupy larger space on a board, so that the miniaturization and high-power density design of the adapter are not facilitated; 3. the layout consistency of the existing rectifying and EMC circuit part is poor, which is not beneficial to the performance optimization and production and manufacture of the circuit.

SUMMERY OF THE UTILITY MODEL

The utility model discloses not enough to the above-mentioned of present rectification and EMC circuit layout design provides a rectification and EMC module, and this rectification and EMC module adopt the modularized design, improve space utilization, and easily integration and compatibility make things convenient for the production to make and the quality is the accuse, reduce repetitive design, and save time shortens product development cycle.

The technical scheme of the utility model is that: a rectifying and EMC module comprises a rectifying module and an EMC module, wherein the EMC module comprises a common-mode inductor L1 and a common-mode inductor L2; the L phase and the N phase of a mains supply are respectively connected with a pin 1 and a pin 2 of a common-mode inductor L1, a pin 3 and a pin 4 of a common-mode inductor L1 are respectively connected with a pin 1 and a pin 2 of a common-mode inductor L2, and a safety regulation capacitor CX and an EMC resistor are arranged between the pin 3 and the pin 4 of the common-mode inductor L1; pins 3 and 4 of the common-mode inductor L2 are connected with the input end of the rectification module; on the PCB, the common-mode inductor L1 is arranged in the center of the top layer of the PCB close to the input end HV3 pin and the input end HV4 pin of the module port; the safety capacitor CX1 is arranged in the center of the top layer of the PCB close to the 3 pins and the 4 pins of the common-mode inductor L1; the common-mode inductor L2 is arranged in the middle of the top layer of the PCB close to the other side of the safety capacitor CX 1; the rectifying module is arranged in the center of the top layer of the PCB close to the 3 pins and the 4 pins of the common-mode inductor L2; the resistor is arranged on the bottom layer of the PCB and respectively arranged between the common-mode inductor L1 and the safety capacitor CX1 and between the safety capacitor CX1 and the common-mode inductor L2.

Further, in the above rectifier and EMC module: the EMC resistor comprises a resistor R1, a resistor R2, a resistor R3 and a resistor R4, the resistor R1 and the resistor R2 form a group A which is connected in parallel, the resistor R3 and the resistor R4 form a group B which is connected in parallel, one end of the group A which is connected in parallel is connected with a pin 1 of the common-mode inductor L1, and the other end of the group A which is connected in parallel with the group B is connected in series and then connected to a pin 2 of the common-mode inductor L1 through the group B; the resistor R2 and the resistor R3 are arranged on the bottom layer of the PCB and are arranged between the common-mode inductor L1 and the safety capacitor CX 1; the resistor R1 and the resistor R4 are arranged on the bottom layer of the PCB and are arranged between the safety capacitor CX1 and the common mode inductor L2.

Further, in the above rectifier and EMC module: the rectifier module is a bridge rectifier module BD, and the output end of the bridge rectifier module BD forms an HV-pin and an HV + pin which are arranged on two sides of an input end HV3 pin and an input end HV4 pin.

The utility model adopts the standard modular design, the occupied space is small, and the volume of the whole machine can be made smaller; independent module layout is easy to control production and process, product yield is improved, integration into each similar scheme design is convenient, repeated design is reduced, and product development cycle is shortened.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is the utility model discloses rectification and EMC module circuit schematic diagram.

Fig. 2 is the utility model discloses rectification and EMC module PCB board are the schematic diagram on the contrary.

Fig. 3 is a side view of the rectifier and EMC module of the present invention.

Fig. 4 is a front view of the rectifier and EMC module of the present invention.

Detailed Description

Embodiment 1, this embodiment is a rectification and EMC module, as shown in fig. 1, and the connection relationship between the components is as shown in a schematic circuit diagram:

the commercial power L phase is connected to a module port HV3 pin after passing through a fuse F1, as shown in FIG. 2, the commercial power N is connected to a module port HV4 pin after passing through a thermistor RT 1; pin HV3 goes from pin 3 in pin 1 of common mode inductor L1, pin HV4 goes from pin 4 in pin 2 of common mode inductor L1; the resistor R1 and the resistor R2 are A groups of parallel resistors, the resistor R3 and the resistor R4 are B groups of parallel resistors, one end of the A group of parallel resistors is connected with 1 pin of the common mode inductor L1, and the other end of the A group of parallel resistors is connected with the B group of parallel resistors in series and then is connected with 2 pins of the common mode inductor L1 through the B group of parallel resistors; a pin 1 of a common-mode inductor L1 is connected to a pin 3 of a common-mode inductor L2 through a pin 1 of a safety-regulation capacitor CX1, a pin 2 of the common-mode inductor L1 is connected to a pin 4 of the common-mode inductor L2 through a pin 2 of the safety-regulation capacitor CX1, a pin 1 of the common-mode inductor L2 is connected to a pin HV1 of an alternating-current input end of a bridge rectifier module BD1,

pins

1 and 2 of a common-mode inductor L2 are connected to a pin HV2 of an alternating-current input end of the bridge rectifier module BD1, the positive output of the grid rectifier module BD1 is connected to a pin HV + of a module port, and the negative output of the bridge rectifier module BD1 is connected to a pin HV-of the module port HV-pin. As shown in fig. 1.

The circuit layout on the PCB is shown in FIGS. 2, 3 and 4, and the common mode inductor L1 is arranged in the center of the top layer of the PCB close to the input terminals HV3 pin and HV4 pin of the module port; the safety capacitor CX1 is arranged in the center of the top layer of the PCB close to the 3 pins and the 4 pins of the common-mode inductor L1; the common-mode inductor L2 is arranged in the middle of the top layer of the PCB close to the other side of the safety capacitor CX 1; the bridge rectifier module BD1 is arranged in the middle of the top layer of the PCB proximate to the 3 pins and the 4 pins of the common mode inductor L2; the resistor R2 and the resistor R3 are arranged on the bottom layer of the PCB and are arranged between the common-mode inductor L1 and the safety capacitor CX 1; the resistor R1 and the resistor R4 are arranged on the bottom layer of the PCB and are arranged between the safety capacitor CX1 and the common mode inductor L2.

When the module of this embodiment is used, only need to reserve four interface mounting holes and suitable space that correspond with this module on the target board, can directly install and use this module on the target board.

Claims

1. A rectifying and EMC module comprises a rectifying module and an EMC module, wherein the EMC module comprises a common-mode inductor L1 and a common-mode inductor L2; the L phase and the N phase of a mains supply are respectively connected with a pin 1 and a pin 2 of a common-mode inductor L1, a pin 3 and a pin 4 of a common-mode inductor L1 are respectively connected with a pin 1 and a pin 2 of a common-mode inductor L2, and a safety capacitor CX1 and an EMC resistor are arranged between the pin 3 and the pin 4 of the common-mode inductor L1; pins 3 and 4 of the common-mode inductor L2 are connected with the input end of the rectification module; the method is characterized in that: on the PCB, the common-mode inductor L1 is arranged in the center of the top layer of the PCB close to the input end HV3 pin and the input end HV4 pin of the module port; the safety capacitor CX1 is arranged in the center of the top layer of the PCB close to the 3 pins and the 4 pins of the common-mode inductor L1; the common-mode inductor L2 is arranged in the middle of the top layer of the PCB close to the other side of the safety capacitor CX 1; the rectifying module is arranged in the center of the top layer of the PCB close to the 3 pins and the 4 pins of the common-mode inductor L2; the resistor is arranged on the bottom layer of the PCB and respectively arranged between the common-mode inductor L1 and the safety capacitor CX1 and between the safety capacitor CX1 and the common-mode inductor L2.

2. The rectifying and EMC module of claim 1, wherein: the EMC resistor comprises a resistor R1, a resistor R2, a resistor R3 and a resistor R4, the resistor R1 and the resistor R2 form a group A which is connected in parallel, the resistor R3 and the resistor R4 form a group B which is connected in parallel, one end of the group A which is connected in parallel is connected with a pin 1 of the common-mode inductor L1, and the other end of the group A which is connected in parallel with the group B is connected in series and then connected to a pin 2 of the common-mode inductor L1 through the group; the resistor R2 and the resistor R3 are arranged on the bottom layer of the PCB and are arranged between the common-mode inductor L1 and the safety capacitor CX 1; the resistor R1 and the resistor R4 are arranged on the bottom layer of the PCB and are arranged between the safety capacitor CX1 and the common mode inductor L2.

3. The rectifying and EMC module of claim 1, wherein: the rectifier module is a bridge rectifier module BD1, and the output end of the bridge rectifier module BD1 forms an HV-pin and an HV + pin which are arranged on two sides of input ends HV3 pin and HV4 pin.