CN216290719U

CN216290719U - Power module with self-checking control function

Info

Publication number: CN216290719U
Application number: CN202122460714.9U
Authority: CN
Inventors: 杨敏武; 姚青连; 张新
Original assignee: Sichuan Hengye Electronics Co ltd
Current assignee: Sichuan Hengye Electronics Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-04-12
Anticipated expiration: 2031-10-12

Abstract

The utility model discloses a power module with a self-checking control function, which relates to the field of power modules with self-checking functions and aims to simultaneously supply power to external equipment and internal devices, reduce interference and have a simple structure, and a voltage detection module, a temperature detection module and a micro control unit for self-checking are arranged in the power module.

Description

Power module with self-checking control function

Technical Field

The utility model relates to the field of power modules with self-checking functions, in particular to a power module with a self-checking control function.

Background

The power module is the indispensable existence at present, and its effect is that the mains voltage who turns into suitable specification with 220V alternating current supplies electrical equipment to use, in order to ensure power module's safe handling, can add the voltage detection module, temperature detection module and the little the control unit that are used for the self-checking in the power, and the unit that the self-checking was used, voltage detection module, temperature detection module and little the control unit itself also all need the power supply for example.

The power supply module with the self-checking function can be conveniently and widely put into use only by directly converting the internal part of the power supply equipment into a self-checking unit and avoiding mutual interference between different power supply circuits and simultaneously considering simple structure and small size.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a power supply module with a self-checking control function, which aims to supply power to external equipment and internal devices simultaneously, reduce interference and have a simple structure.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a power module with a self-checking control function is internally provided with an internal monitoring system for self-checking;

the device comprises a pre-filtering module, a PFC module, a voltage transformation internal power supply module and 3 voltage transformation output modules; and 3 voltage transformation output modules are respectively connected to the internal monitoring system.

The output end of the pre-filtering module is connected to the input end of the PFC module, the input ends of the internal power supply module of the transformer and the 3 transformer output modules are connected to the output end of the PFC module, and the internal power supply module of the transformer is connected to an internal monitoring system.

Preferably, each of said transformed output modules comprises 3 capacitors, 1 DC/DC module and 1 EMC module; two ends of the first capacitor are connected to the output end of the PFC module and the input end of the first DC/DC module, two ends of the second capacitor are connected to the output end of the first DC/DC module and the input end of the first EMC module, and the output end of the first EMC module is connected to two ends of the third capacitor.

Preferably, the models of the first DC/DC module in the 3 voltage transformation output modules are SHBS500-300S24BNCT and 2 SQBS100-300S24BNCT respectively.

Preferably, the transforming internal power supply module comprises 5 capacitors, 2 DC/DC modules and 2 EMC modules; two ends of the fourth capacitor are connected to the output end of the PFC module and the input end of the second DC/DC module, two ends of the fifth capacitor are connected to the output end of the second DC/DC module and the input end of the second EMC module, the output end of the second EMC module is connected to two ends of the sixth capacitor, the sixth capacitor is connected to the input end of the third EMC module, two ends of the seventh capacitor are connected to the output end of the third EMC module and the input end of the third DC/DC module, and the third DC/DC module is connected to two ends of the eighth capacitor.

Preferably, the transformation internal power supply module is connected to an output end of any one of the transformation output modules, and comprises 1 EMC module, 2 capacitors and 1 DC/DC module; an input of a fourth EMC module is connected to both ends of the third capacitance, both ends of a ninth capacitance are connected to an output of the fourth EMC module and an input of a fourth DC/DC module, an output of the fourth DC/DC module is connected to both ends of a tenth capacitance.

Preferably, the pre-filter module adopts a common-mode inductor.

Preferably, the internal monitoring system comprises a voltage detection module, a temperature detection module and a micro control unit, wherein the voltage detection module and the temperature detection module are respectively connected to the micro control unit; the number of the voltage detection modules is 3, the voltage detection modules are respectively connected to the output ends of the 3 voltage transformation output modules, and the voltage transformation output modules are also connected to the micro control unit.

The utility model is provided with a plurality of voltage transformation output modules and voltage transformation internal power supply modules to supply power to external equipment, and a system which has self-checking functions of monitoring temperature and output voltage and realizes the self-checking function is also supplied with power from the inside, and the EMC modules and capacitors are arranged to realize that each branch circuit is independent and does not interfere with each other; the power supply for internal power supply needs more voltage reduction, and is connected with the power supply for external power supply, so that the structure is simplified, and the cost is saved.

Drawings

Fig. 1 is a schematic structural diagram of a power module with a self-test control function according to embodiment 1;

fig. 2 is a schematic structural diagram of a voltage transformation output module of embodiment 1;

fig. 3 is a schematic structural diagram of a voltage transformation internal power supply module of embodiment 1;

fig. 4 is a schematic structural diagram of a power module with a self-test control function according to embodiment 2.

Detailed Description

Example 1

Referring to fig. 1, a power module with a self-checking control function is provided with an internal monitoring system for self-checking; the device comprises a pre-filtering module, a PFC module, a voltage transformation internal power supply module and 3 voltage transformation output modules; and 3 voltage transformation output modules are respectively connected to the internal monitoring system. The output end of the pre-filtering module is connected to the input end of the PFC module, the input ends of the internal power supply module of the transformer and the 3 transformer output modules are connected to the output end of the PFC module, and the internal power supply module of the transformer is connected to an internal monitoring system. In the present embodiment, the pre-filter module employs a common-mode inductor L0.

Referring to fig. 2, each of the voltage transformation output modules preferably includes 3 capacitors, 1 DC/DC module and 1 EMC module; two ends of the first capacitor C1 are connected to the output terminal of the PFC module and the input terminal of the first DC/DC module, two ends of the second capacitor C2 are connected to the output terminal of the first DC/DC module and the input terminal of the first EMC module, and the output terminal of the first EMC module is connected to two ends of the third capacitor C3.

Furthermore, referring to fig. 3, the transforming internal power supply module comprises 5 capacitors, 2 DC/DC modules and 2 EMC modules; two ends of a fourth capacitor C4 are connected to the output terminal of the PFC module and the input terminal of the second DC/DC module, two ends of a fifth capacitor C5 are connected to the output terminal of the second DC/DC module and the input terminal of the power supply second EMC module, the output terminal of the second EMC module is connected to two ends of a sixth capacitor C6, the sixth capacitor C6 is connected to the input terminal of the third EMC module, two ends of a seventh capacitor C7 are connected to the output terminal of the third EMC module and the input terminal of the third DC/DC module, and the third DC/DC module is connected to two ends of an eighth capacitor C8.

In operation, common mode inductance L0 connects the 220V alternating current of standard for effectively restrain electromagnetic interference, and the PFC module converts the alternating current into the direct current, and each way electric capacity filters and reduces the noise, then carries out vary voltage and anti-interference processing of filtering once more through three vary voltage output module, outputs different output power supply voltage, and the internal power module output of vary voltage provides the output voltage of 5V direct current source for the internal monitoring system through the similar.

It is particularly noted that, in this embodiment, the internal monitoring system includes a voltage detection module, a temperature detection module and a micro control unit, and the voltage detection module and the temperature detection module are respectively connected to the micro control unit; the number of the voltage detection modules is 3, the voltage detection modules are respectively connected to the output ends of the 3 voltage transformation output modules, the voltage transformation output modules are further connected to the micro control unit, the voltage detection modules and the temperature detection modules respectively detect the voltage and the working temperature of the power supply module, the voltage and the working temperature are sent to the micro control unit for judgment and processing, and the micro control unit executes a control command of the DC/DC module according to the condition whether the data are abnormal or not.

Example 2

The scheme of this embodiment is based on the structure of embodiment 1, and the improvement point is that after the internal power supply module of the transformer is connected with a transformer output module, the required electric elements are reduced, and the structure is simplified.

Referring to fig. 4, as in embodiment 1, a power module with a self-checking control function is provided with a built-in voltage detection module, a temperature detection module and a micro control unit for self-checking, and includes a pre-filter module, a PFC module, a variable voltage internal power supply module, and 3 variable voltage output modules. The output end of the pre-filtering module is connected to the input end of the PFC module, the input ends of the internal power supply module of the transformer and the 3 transformer output modules are connected to the output end of the PFC module, and the pre-filtering module adopts a common-mode inductor L0.

The structures of the three voltage transformation output modules are respectively as follows:

in the first transformation output module, two ends of a capacitor C11 are connected to the output end of a PFC module and the input end of a DC/DC module with the model number of SHBS500-300S24BNCT, two ends of a capacitor C12 are connected to the output end of the SHBS500-300S24BNCT module and the input end of a first EMC module, the output end of an EMC module is connected to two ends of a capacitor C13, and the output voltage of two ends of a capacitor C13 is 20V;

in the second transformation output module, two ends of a capacitor C21 are connected to the output end of the PFC module and the input end of a DC/DC module with the model number of SQBS100-300S24BNCT, two ends of a capacitor C22 are connected to the output end of the SQBS100-300S24BNCT and the input end of the first EMC module, the output end of an EMC module is connected to two ends of a capacitor C23, and the output voltage of two ends of a capacitor C23 is 24V;

in the third transformation output module, two ends of a capacitor C31 are connected to the output end of the PFC module and the input end of a DC/DC module with the model number SQBS100-300S24BNCT, two ends of a capacitor C32 are connected to the output end of the SQBS100-300S24BNCT and the input end of the first EMC module, the output end of an EMC module is connected to two ends of a capacitor C33, and the output voltage of two ends of a capacitor C33 is 24V.

In this embodiment, the transforming internal power module is connected to the first transforming output module, and the part of the transforming internal power module before the fourth EMC module is merged with the transforming output module, that is, the input terminal of the fourth EMC module is connected to the two terminals of the capacitor C13, the two terminals of the ninth capacitor C9 are connected to the output terminal of the fourth EMC module and the input terminal of the fourth DC/DC module with the model F2405XT-1WR2, the output terminal of the fourth DC/DC module is connected to the two terminals of the tenth capacitor C10, and the output voltage is 5V. The fourth EMC module further isolates the power supply module in the transformer from the transformer output module, and interference is reduced.

Claims

1. The utility model provides a power module that possesses self-checking control function which characterized in that: an internal monitoring system for self-checking is arranged in the system;

the device comprises a pre-filtering module, a PFC module, a voltage transformation internal power supply module and 3 voltage transformation output modules; the 3 voltage transformation output modules are respectively connected to an internal monitoring system;

2. The power module with self-test control function according to claim 1, wherein: each transformation output module comprises 3 capacitors, 1 DC/DC module and 1 EMC module; two ends of the first capacitor are connected to the output end of the PFC module and the input end of the first DC/DC module, two ends of the second capacitor are connected to the output end of the first DC/DC module and the input end of the first EMC module, and the output end of the first EMC module is connected to two ends of the third capacitor.

3. The power module with self-test control function according to claim 2, wherein: the transformation internal power supply module comprises 5 capacitors, 2 DC/DC modules and 2 EMC modules; two ends of a fourth capacitor are connected to the output end of the PFC module and the input end of the second DC/DC module, two ends of a fifth capacitor are connected to the output end of the second DC/DC module and the input end of the second EMC module, the output end of the second EMC module is connected to two ends of a sixth capacitor, the sixth capacitor is connected to the input end of a third EMC module, two ends of a seventh capacitor are connected to the output end of the third EMC module and the input end of the third DC/DC module, and the third DC/DC module is connected to two ends of an eighth capacitor.

4. The power module with self-test control function according to claim 3, wherein: the transformation internal power supply module is connected to the output end of any one transformation output module and comprises 1 EMC module, 2 capacitors and 1 DC/DC module; an input of a fourth EMC module is connected to both ends of the third capacitance, both ends of a ninth capacitance are connected to an output of the fourth EMC module and an input of a fourth DC/DC module, an output of the fourth DC/DC module is connected to both ends of a tenth capacitance.

5. The power module with self-test control function according to claim 1, wherein: the pre-filtering module adopts a common-mode inductor.

6. The power module with self-test control function according to claim 1, wherein: the internal monitoring system comprises a voltage detection module, a temperature detection module and a micro control unit, wherein the voltage detection module and the temperature detection module are respectively connected to the micro control unit; the number of the voltage detection modules is 3, the voltage detection modules are respectively connected to the output ends of the 3 voltage transformation output modules, and the voltage transformation output modules are also connected to the micro control unit.