CN215896119U

CN215896119U - Improved DC-DC water-cooling high-frequency transformer

Info

Publication number: CN215896119U
Application number: CN202122266200.XU
Authority: CN
Inventors: 谭高宇; 石新春
Original assignee: Baoding Stable Electric Co ltd
Current assignee: Baoding Stable Electric Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-02-22
Anticipated expiration: 2031-09-18

Abstract

The utility model discloses an improved DC-DC water-cooled high-frequency transformer, which relates to the technical field of water-cooled transformers and comprises a first output bar and a second output bar, wherein the bottoms of the first output bar and the second output bar are clamped, the front end and the rear end of the bottom of the first output bar are fixedly connected with a first confluence cover, the bottom of the first confluence cover is fixedly connected with a first confluence box, the bottom of the second output bar is fixedly connected with a second confluence cover, the bottom of the second confluence cover is fixedly connected with a second confluence box, the bottom of the first confluence box is fixedly connected with a plurality of U-shaped square pipes, one ends of the U-shaped square pipes, far away from the first confluence box, are fixedly connected to the lower surface of the second confluence box, two round copper pipes are arranged in a gap between the U-shaped square pipes, and large openings are formed in the middles of the U-shaped square pipes and the round copper pipes. According to the utility model, the round copper pipe and the U-shaped square pipe are arranged, so that the radiating effect is better, a fan is not needed to be used for radiating the magnetic core, the integral volume is smaller, and the installation is more convenient.

Description

Improved DC-DC water-cooling high-frequency transformer

Technical Field

The utility model relates to the technical field of water-cooled transformers, in particular to an improved DC-DC water-cooled high-frequency transformer.

Background

The high-frequency transformer is a power transformer with the working frequency exceeding the intermediate frequency (10kHz), is mainly used as a high-frequency switching power transformer in a high-frequency switching power supply, and is also used as a high-frequency inverter power transformer in a high-frequency inverter power supply and a high-frequency inverter welding machine. According to the working frequency, the method can be divided into several grades: 10kHz-50kHz, 50kHz-100kHz, 100 kHz-500 kHz, 500 kHz-1 MHz and more than 10 MHz.

The existing high-frequency transformer is large in volume under high-voltage and large-current conditions, the cross section of a magnetic core is usually square, the winding is round in a round tube, the structural design is unreasonable, two windings are copper tubes, gaps are large, taps need to be connected through copper bars, the number of screws and nuts is large, the fit gaps between the copper tubes and an iron core are large, the utilization rate of an iron core window is low, water needs to be introduced, the cooling iron core needs to be cooled through an additional fan, heat dissipation loss exists, the fan is possibly damaged, the whole high-frequency transformer is too complex and heavy, and the actual use efficiency is low.

In order to solve the above problems, it is necessary to provide an improved DC-DC water-cooled high-frequency transformer.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the technical scheme provides an improved DC-DC water-cooling high-frequency transformer, and solves the problems that the existing high-frequency transformer proposed in the background technology has large volume under high voltage and large current, the section of a magnetic core is usually square, windings are round pipes, the structural design is unreasonable, the two windings are copper pipes, gaps are large, taps need to be connected by copper bars, more screws and nuts are adopted, the fit gap between the copper pipes and an iron core is large, the utilization rate of an iron core window is low, water needs to be supplied, a fan needs to be additionally added for cooling the iron core, heat dissipation loss exists, a fan is possibly damaged, the whole body is too complex and heavy, and the actual use efficiency is low.

In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:

the utility model provides an improvement DC-DC water-cooling high frequency transformer, including first output row and second output row, joint bottom the first output row and second output row, the first cover that converges of the equal fixedly connected with in first output row bottom front and back end, the first box that converges of first cover bottom fixedly connected with, the second cover that converges of second output row bottom fixedly connected with second, second cover bottom fixedly connected with second converge the box, a plurality of U type side pipe of first box bottom fixedly connected with, the one end fixed connection that first box that converges was kept away from in U type side pipe is at second box lower surface that converges, clearance between the U type side pipe is provided with two round copper pipes, big opening has all been seted up in the middle of U type side pipe and the round copper pipe, U type side pipe and round copper pipe have cup jointed a plurality of magnetic core through big opening.

Preferably, the bottom of the round copper pipe is fixedly connected with a plurality of tapping terminals.

Preferably, two pipe orifices have been seted up at U type side's pipe top, and two pipe orifices laminate with first conflux box and second conflux box respectively, and U type side's pipe communicates with the inner chamber of first conflux box and second conflux box.

Preferably, the winding section of the round copper pipe is of a rectangular structure.

Preferably, the left side is first converge the cover top fixedly connected with water inlet, the right side is first converge the cover top fixedly connected with delivery port.

Preferably, the water inlet and the water outlet are communicated with the inner cavity of the first confluence box.

Preferably, the round copper tubes are symmetrically distributed on two sides of the second junction box.

Compared with the prior art, the utility model provides an improved DC-DC water-cooling high-frequency transformer, which has the following beneficial effects:

through setting up round copper pipe and U type side pipe, the certain number of turns of the integrative coiling of round copper pipe is formed for copper pipe winding, carry out the copper pipe winding of the corresponding size of coiling according to magnetic core cross sectional dimension, the surface of magnetic core is the plane, the surface of U type side pipe is the plane equally and is the square copper pipe, square copper pipe and magnetic core laminating, area of contact and degree of coupling are improved, and can dispel the heat to the magnetic core, clearance face parallel between each circle of U type side pipe, clearance dimension is according to another winding size determination, and with another winding face parallel and laminating, the radiating effect is better, the square chamber of square copper pipe is greater than the round chamber of conventional round pipe, the radiating effect is better, needn't dispel the heat to the magnetic core using the fan, the whole volume is littleer, it is more convenient to install.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic perspective view of the present invention (with the core removed);

FIG. 3 is a schematic view of a circular copper tube structure according to the present invention;

FIG. 4 is a schematic view of a U-shaped square tube structure according to the present invention;

fig. 5 is a schematic diagram of the magnetic core structure of the present invention.

The reference numbers in the figures are:

101. a water inlet; 102. a first manifold box; 103. a first output bank; 104. a second output row; 105. a water outlet; 106. a second bus cover; 107. a second manifold box; 108. a first bus cover;

201. a round copper pipe; 202. a tap terminal; 203. a U-shaped square tube; 204. a magnetic core.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1 to 5, an improved DC-DC water-cooled high frequency transformer, includes a first output bank 103 and a second output bank 104, the bottom of the first output bar 103 is clamped with the bottom of the second output bar 104, the front end and the rear end of the bottom of the first output bar 103 are fixedly connected with a first confluence cover 108, the bottom of the first confluence cover 108 is fixedly connected with a first confluence box 102, the bottom of the second output bar 104 is fixedly connected with a second confluence cover 106, the bottom of the second confluence cover 106 is fixedly connected with a second confluence box 107, the bottom of the first confluence box 102 is fixedly connected with a plurality of U-shaped square tubes 203, one ends, far away from the first confluence box 102, of the U-shaped square tubes 203 are fixedly connected to the lower surface of the second confluence box 107, two round copper tubes 201 are arranged in a gap between the U-shaped square tubes 203, large openings are formed in the middles of the U-shaped square tubes 203 and the round copper tubes 201, and the U-shaped square tubes 203 and the round copper tubes 201 are sleeved with a plurality of magnetic cores 204 through the large openings;

referring to fig. 2, the U-shaped square tube 203, the magnetic core 204 and the round copper tube 201 are mutually matched, so that the round copper tube 201 obtains a hanging supporting point by means of the U-shaped square tube 203;

referring to fig. 2, a circular cavity for cooling water to flow through is formed in the circular copper pipe 201, a gap is formed between the circular copper pipes 201 of the copper pipe windings for installing another winding, water can pass through the circular copper pipe 201 to cool the magnetic core 204, the other winding is two groups of U-shaped square pipes 203, water flows through the water inlet 101, enters the first junction box 102 on the left side, flows into the second junction box 107 through the U-shaped square pipes 203, flows into the first junction box 102 on the right side through the U-shaped square pipes 203, and flows out from the water outlet 105, and the first junction box 102 and the second junction box 107 are connected with the first output row 103 and the second output row 104 to form a loop as an output side;

referring to fig. 2, each turn of a round copper tube 201 is connected with a tap terminal 202 to form a primary input side of the transformer;

the outer shell is additionally arranged outside the transformer, the outer shell is made of barrel-shaped aluminum profiles, the upper opening and the lower opening of the outer shell are respectively an input side and an output side, the openings are filled and sealed by insulating materials, the insulating, heat-conducting and flame-retardant transformer fixing effect can be achieved, and blind hole nuts are arranged on the aluminum profiles, so that the transformer can be conveniently mounted on a finished product.

Specifically, the bottom of the round copper tube 201 is fixedly connected with a plurality of tap terminals 202.

Two pipe orifices are arranged at the top of the U-shaped square pipe 203, the two pipe orifices are respectively attached to the first confluence box 102 and the second confluence box 107, and the U-shaped square pipe 203 is communicated with the inner cavities of the first confluence box 102 and the second confluence box 107.

The cross section of the wound round copper pipe 201 is of a rectangular structure.

The top of the first confluence cover 108 on the left side is fixedly connected with a water inlet 101, and the top of the first confluence cover 108 on the right side is fixedly connected with a water outlet 105.

The water inlet 101 and the water outlet 105 are both communicated with the inner cavity of the first confluence box 102.

The round copper pipes 201 are symmetrically distributed on two sides of the second junction box 107.

The working principle and the using process of the utility model are as follows: through setting up circle copper pipe 201 and U type side pipe 203, copper pipe winding adopts the integrative certain number of turns of coiling of circle copper pipe 201 shaping, carry out the copper pipe winding of coiling corresponding dimension according to magnetic core 204 cross sectional dimension, the surface of magnetic core 204 is the plane, the surface of U type side pipe 203 is the plane just for square copper pipe equally, square copper pipe and the laminating of magnetic core 204, improve area of contact and degree of coupling, and can dispel the heat to magnetic core 204, the clearance face is parallel between each circle of U type side pipe 203, the clearance dimension is confirmed according to another winding size, and with the parallel and laminating of another winding face, the radiating effect is better, square copper pipe's square chamber is greater than the round chamber of conventional round pipe, the radiating effect is better, needn't dispel the heat to magnetic core 204 using the fan, the whole volume is littleer, it is more convenient to install.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An improved DC-DC water-cooling high-frequency transformer is characterized by comprising a first output bar (103) and a second output bar (104), wherein the bottoms of the first output bar (103) and the second output bar (104) are clamped, the front end and the rear end of the bottom of the first output bar (103) are fixedly connected with a first confluence cover (108), the bottom of the first confluence cover (108) is fixedly connected with a first confluence box (102), the bottom of the second output bar (104) is fixedly connected with a second confluence cover (106), the bottom of the second confluence cover (106) is fixedly connected with a second confluence box (107), the bottom of the first confluence box (102) is fixedly connected with a plurality of U-shaped square tubes (203), one ends, far away from the first confluence box (102), of the U-shaped square tubes (203) are fixedly connected to the lower surface of the second confluence box (107), two round copper tubes (201) are arranged in a gap between the U-shaped square tubes (203), and large openings are formed in the middles of the U-shaped square tubes (203) and the round copper tubes (201), the U-shaped square tube (203) and the round copper tube (201) are sleeved with a plurality of magnetic cores (204) through large openings.

2. The improved DC-DC water-cooled high-frequency transformer of claim 1, wherein: the bottom of the round copper pipe (201) is fixedly connected with a plurality of tapping terminals (202).

3. The improved DC-DC water-cooled high-frequency transformer of claim 1, wherein: two nozzles are arranged at the top of the U-shaped square pipe (203), the two nozzles are respectively attached to the first manifold box (102) and the second manifold box (107), and the U-shaped square pipe (203) is communicated with inner cavities of the first manifold box (102) and the second manifold box (107).

4. The improved DC-DC water-cooled high-frequency transformer of claim 1, wherein: the winding section of the round copper pipe (201) is of a rectangular structure.

5. The improved DC-DC water-cooled high-frequency transformer of claim 1, wherein: the left side first cover (108) top fixedly connected with water inlet (101) that converges, the right side first cover (108) top fixedly connected with delivery port (105) that converges.

6. The improved DC-DC water-cooled high-frequency transformer of claim 5, wherein: the water inlet (101) and the water outlet (105) are communicated with the inner cavity of the first confluence box (102).

7. The improved DC-DC water-cooled high-frequency transformer of claim 1, wherein: the round copper pipes (201) are symmetrically distributed on two sides of the second confluence box (107).