1 / 4 brick AC-DC module power supply

Abstract

The utility model discloses a 1 / 4 brick AC-DC module power supply, which comprises a first heat dissipation mechanism, a second heat dissipation mechanism, an outer shell, a voltage transformation module and a power supply module, the voltage transformation module comprises a first forward winding smashing group, a plurality of second forward winding smashing groups, a first secondary winding smashing group and a plurality of second secondary winding smashing groups, the first heat dissipation mechanism comprises an oil box and a heat dissipation oil sheet box, the transformer module is installed in the oil box, the two side walls of the oil box are communicated with the two ends of the heat dissipation oil sheet box through two pipelines respectively, an oil pump is arranged in one pipeline, the heat dissipation oil sheet box is arranged outside the outer shell, and the second heat dissipation mechanism comprises a shielding box and a circulating heat dissipation pipe. The power supply module is arranged in the shielding box, and the other end of the outer shell is provided with a row of direct current output binding posts. According to the utility model, an input voltage is transformed into a smaller voltage through the transformation module, the smaller voltage is transmitted to the power supply module, and then the AC-DC conversion power supply module carries out more accurate voltage intensity transformation and outputs a direct current, so that a plurality of groups of different stable direct currents can be provided.

Description

TECHNICAL FIELD

[0001] The utility model relates to AC-DC module power supply technical field especially relates to a 1 / 4 brick AC-DC module power supply. BACKGROUND

[0002] 1 / 4 brick AC-DC module power supply is a kind of high-integration power conversion module for converting alternating current into direct current. It can adapt to 90-264V AC general input voltage, and adapt to different power grid environment. The output current of 1 / 4 brick AC-DC module power supply is relatively small, and the output voltage is generally between several volts and tens of volts, but the input voltage will change between 90-264V AC, or even a wider range. It is suitable for compact space, and the power requirement is not particularly high equipment, such as small industrial control equipment, part of communication terminal equipment, intelligent instrument, etc. These devices usually need a relatively stable DC power supply, but the power demand is relatively small. If the input voltage is directly connected to the AC-DC conversion board, not only will it generate magnetic induction interference, but also the heat dissipation will be poor, because when converting from high voltage to low voltage, it is not easy to adjust the pressure due to the large change of input voltage, resulting in unstable output DC voltage. SUMMARY

[0003] The utility model aims at at least in a certain extent solves one of the technical problems in relevant technical field. For this reason, one purpose of the utility model is to propose a kind of 1 / 4 brick AC-DC module power supply, solves the problem, such as 1 / 4 brick AC-DC module power supply voltage regulating effect is not accurate, heat dissipation is poor, output DC voltage is unstable.

[0004] The utility model provides a kind of 1 / 4 brick AC-DC module power supply, including first heat dissipation mechanism and second heat dissipation mechanism, shell body and shell body inside voltage transformation module and power supply module, the voltage transformation module includes a first positive winding group, multiple second positive winding groups, first secondary winding group and multiple second secondary positive winding groups, the first positive winding group is sequentially connected between multiple second positive winding groups, the first secondary winding group is sequentially connected with multiple second secondary positive winding groups, the first positive winding group and first secondary winding group are corresponding group, every second positive winding group corresponds with a second secondary positive winding group, the shell body one end is equipped with alternating current positive connection column and alternating current negative connection column, the alternating current positive connection column is electrically connected with the anode of first positive winding group, the alternating current negative connection column is divided into two wires and is electrically connected with the cathode of first positive winding group and the cathode of last second positive winding group respectively by a first electric control switch, the anode of first secondary winding group is as first output line, the anode of multiple second secondary positive winding groups is all connected with a second output line and is equipped with second electric control switch on second output line, and all second output line output end converges and is connected with first output line as positive and negative electrode output line and is connected to power supply module, the first heat dissipation mechanism includes oil box and radiating oil sheet box, the voltage transformation module is installed in oil box, the two side walls of oil box are connected with the two ends of radiating oil sheet box respectively by two pipes, and oil pump is arranged in a pipe, the radiating oil sheet box is arranged outside shell body, the second heat dissipation mechanism includes shielding box and circulating heat pipe, the circulating heat pipe is arranged along the side wall of shell body and is connected with the two side walls of shielding box respectively, the power supply module is arranged in shielding box, a row of DC output terminal posts is arranged on the other end of shell body, and the DC output terminal posts are connected to power supply module.

[0005] In some embodiments of the utility model, a plurality of filter screens are arranged in the oil box, and the filter screens separate the first positive winding group and the first secondary winding group, and the plurality of second positive winding groups and the second secondary positive winding groups.

[0006] In some other embodiments of the utility model, a first electric control voltmeter is connected between the alternating current positive connection column and the alternating current negative connection column, and a second electric control voltmeter is connected between the first output line and the output end of all the second output lines, and the first electric control voltmeter and the second electric control voltmeter are electrically connected to the power supply module.

[0007] In some other embodiments of the utility model, the radiating oil sheet box is fixedly installed on the top wall of the shell body by a plurality of supporting columns.

[0008] In some other embodiments of the utility model, a plurality of heat dissipation plates are arranged on the circulating heat pipe.

[0009] In some other embodiments of the utility model, the shielding box and the circulating heat pipe are filled with inert gas.

[0010] The utility model discloses, first voltage is changed to the voltage of smaller delivery to power module through voltage change module, and the voltage of transformation is in a relatively small range, and the heat generated in this process is quickly scattered to the outside through oil, and then the power module of AC-DC conversion carries out more accurate transformation pressure and exports direct current, can provide a plurality of different stable direct current, also shields and radiating protection to power module, voltage output will be more stable. BRIEF DESCRIPTION OF DRAWINGS

[0011] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and are used to explain the present application, but do not constitute a limitation on the present application. In the drawings:

[0012] Fig. 1 A structure diagram of a 1 / 4 brick AC-DC module power supply is provided.

[0013] Fig. 2 A structure diagram of a 1 / 4 brick AC-DC module power supply is provided.

[0014] In the figure, 1, the shell; 11, AC positive pole and AC negative pole; 111, the first electric control voltmeter; 12, DC output terminal post; 2, heat dissipation oil piece box; 21, pipeline; 22, support column; 3, circulating heat dissipation pipe; 31, heat dissipation plate; 4, oil box; 5, first positive winding group; 6, second positive winding group; 7, first auxiliary winding group; 8, second auxiliary winding group; 9, power module; 91, second electric control voltmeter. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments of the present application.

[0016] Examples of the described embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, but cannot be understood as a limitation on the present application.

[0017] Referring to Figs. 1-2A 1 / 4 brick AC-DC module power supply, comprising a first heat dissipation mechanism and a second heat dissipation mechanism, an outer shell 1, and a voltage conversion module and a power supply module 9 in the outer shell 1, the voltage conversion module comprising a first positive winding group 5, a plurality of second positive winding groups 6, a first auxiliary winding group 7, and a plurality of second auxiliary positive winding groups 8, the first positive winding group 5 and the plurality of second positive winding groups 6 being sequentially connected in series, the first auxiliary winding group 7 and the plurality of second auxiliary positive winding groups 8 being sequentially connected in series, the first positive winding group 5 and the first auxiliary winding group 7 being corresponding groups, each of the second positive winding groups 6 corresponding to a second auxiliary positive winding group 8, one end of the outer shell 1 being provided with an AC positive connection column and an AC negative connection column 11, the AC positive connection column being electrically connected to the positive electrode of the first positive winding group 5, the AC negative connection column being divided into two wires and being electrically connected to the negative electrode of the first positive winding group 5 and the negative electrode of the last second positive winding group 6 through a first electric control switch respectively, the positive electrode of the first auxiliary winding group 7 serving as a first output line, the positive electrodes of the plurality of second auxiliary positive winding groups 8 each being connected to a second output line, and each of the second output lines being provided with a second electric control switch, all the second output lines being connected to the first output line as positive and negative output lines and being connected to the power supply module 9, the first heat dissipation mechanism comprising an oil box 4 and a heat dissipation oil fin box 2, the voltage conversion module being installed in the oil box 4, the two side walls of the oil box 4 being connected to the two ends of the heat dissipation oil fin box 2 through two pipes 21 respectively, and an oil pump 41 being arranged in one of the pipes 21, the heat dissipation oil fin box 2 being arranged outside the outer shell 1, the second heat dissipation mechanism comprising a shielding box and a circulating heat dissipation pipe 3, the circulating heat dissipation pipe 3 being arranged along the side wall of the outer shell 1 and being connected to the two side walls of the shielding box at two ends respectively, the power supply module 9 being arranged in the shielding box, the other end of the outer shell 1 being provided with a row of DC output connection columns 12, and the row of DC output connection columns 12 being connected to the power supply module 9.

[0018] When AC power is input, it is connected to the AC positive connection column and the AC negative connection column 11, if only the first positive winding group 5 and the first auxiliary winding group 7 are used for voltage conversion, the voltage of the input AC power is preferably not more than 120V, if it is more than 120V, the first positive winding group 5 and the plurality of second positive winding groups 6 are connected in series as a positive winding group, for the auxiliary winding group, according to the changed AC voltage, a first auxiliary winding group 7 and one to more second auxiliary positive winding groups 8 are selected, the more the second auxiliary positive winding groups 8 are connected in series, the higher the converted voltage is, which is determined according to the input AC power, the more the second auxiliary positive winding groups 8 are connected, the smaller the input AC power to the power supply module 9 is, so that the voltage conversion range is small and the voltage is not high. Then more accurate voltage conversion is carried out through the power supply module 9, and DC power is converted.

[0019] The oil box can absorb heat more easily and dissipate it, the heat dissipation oil fin box 2 dissipates heat faster and is more conducive to heat dissipation. The oil box can also shield the magnetic induction lines of the voltage conversion module.

[0020] The shielding box is used for shielding external magnetic field interference and for circulating heat dissipation.

[0021] A plurality of filter screens are arranged in the oil box 4, which separate the first primary winding group 5 and the first secondary winding group 7 and the plurality of second primary winding groups 6 and the second secondary winding group 8.

[0022] The winding groups are separated to prevent mutual interference.

[0023] The first electric control voltmeter 111 is connected between the AC positive and negative connection columns 11, and the second electric control voltmeter 91 is connected between the first output line and the second output line output end, and the first and second electric control voltmeters 111 and 91 are electrically connected to the power supply module 9.

[0024] The wiring mode of the first primary winding group 5, the plurality of second primary winding groups 6, the first secondary winding group 7 and the plurality of second secondary winding groups 8 is controlled by voltage measurement.

[0025] The heat dissipation oil fin box 2 is fixedly installed on the top wall of the outer shell 1 by a plurality of supporting columns 22, so as not to contact the outer shell 1.

[0026] The heat dissipation plates 31 are arranged at intervals on the circulating heat dissipation pipe 3, so as to further improve the heat dissipation effect.

[0027] The shielding box and the circulating heat dissipation pipe 3 are filled with inert gas, which protects the sealed environment, stabilizes the voltage conversion and reduces the arc degree.

[0028] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A 1 / 4 brick AC-DC modular power supply, characterized by: The utility model relates to a power supply module and variable voltage module, and the variable voltage module comprises a first positive winding group (5), a plurality of second positive winding groups (6), a first auxiliary winding group (7) and a plurality of second auxiliary positive winding groups (8), the first positive winding group (5) and the plurality of second positive winding groups (6) are sequentially connected in series, the first auxiliary winding group (7) and the plurality of second auxiliary positive winding groups (8) are sequentially connected in series, the first positive winding group (5) and the first auxiliary winding group (7) are corresponding groups, each second positive winding group (6) corresponds to a second auxiliary positive winding group (8), one end of the shell (1) is provided with an AC positive connection column and an AC negative connection column (11), the AC positive connection column is electrically connected with the positive electrode of the first positive winding group (5), the AC negative connection column is divided into two wires and is electrically connected with the negative electrode of the first positive winding group (5) and the negative electrode of the last second positive winding group (6) through a first electric control switch respectively, the positive electrode of the first auxiliary winding group (7) is used as a first output line, the positive electrode of the plurality of second auxiliary positive winding groups (8) is connected with a second output line, and the second output line is provided with a second electric control switch; all the second output lines are connected with the first output line as positive and negative electrode output lines and are connected to the power supply module (9), the first heat dissipation mechanism comprises an oil box (4) and a heat dissipation oil sheet box (2), the variable voltage module is installed in the oil box (4), the two side walls of the oil box (4) are connected with the two ends of the heat dissipation oil sheet box (2) through two pipes (21), and an oil pump (41) is arranged in one pipe (21), the heat dissipation oil sheet box (2) is arranged outside the shell (1), the second heat dissipation mechanism comprises a shielding box and a circulating heat dissipation pipe (3), the circulating heat dissipation pipe (3) is arranged along the side wall of the shell (1) and is connected with the two side walls of the shielding box at two ends, the power supply module (9) is arranged in the shielding box, and a row of DC output connection columns (12) are arranged on the other end of the shell (1) and are connected to the power supply module (9).

2. A 1 / 4 brick AC-DC module power supply as defined in claim 1, characterized in that: A plurality of filter screens are arranged in the oil box (4), and the filter screens separate the first positive winding group (5) and the first auxiliary winding group (7) and the plurality of second positive winding groups (6) and the second auxiliary positive winding groups (8).

3. A 1 / 4 brick AC-DC module power supply as defined in claim 1, characterized by: A first electric control voltmeter (111) is connected between the AC positive connection column and the AC negative connection column (11), and a second electric control voltmeter (91) is connected between the output ends of all the second output lines and the first output line, and the first electric control voltmeter (111) and the second electric control voltmeter (91) are electrically connected to the power supply module (9).

4. A 1 / 4 brick AC-DC module power supply as defined in claim 1, wherein: The heat dissipation oil sheet box (2) is fixedly installed on the top wall of the shell (1) through a plurality of supporting columns (22).

5. A 1 / 4 brick AC-DC module power supply as defined in claim 1, wherein: The circulating heat dissipation pipe (3) is sleeved with heat dissipation plates (31) arranged at intervals.

6. A 1 / 4 brick AC-DC module power supply as defined in claim 1, wherein: The shielding box and the circulating heat dissipation pipe (3) are filled with inert gas.

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