High-frequency water-cooled transformer and high-frequency switching power supply

Abstract

The utility model relates to the technical field of high-frequency transformers, and discloses a high-frequency water-cooled transformer and a high-frequency switching power supply. The coil assembly is arranged in the mounting cavity, and a penetrating hole is formed in the center of the coil assembly; the conductive rod is arranged in the through hole of the coil assembly, and at least one end of the conductive rod extends out of the mounting cavity; a liquid cooling channel is formed in the shell, a cooling liquid inlet and a cooling liquid outlet are formed in the position, on the shell, of the liquid cooling channel, and according to the high-frequency water-cooled transformer, through combination of the shell, the coil assembly and the conductive rod, the high-frequency water-cooled transformer is smaller in size and better in water-cooling heat dissipation effect; therefore, the device is more suitable for being assembled in a high-frequency switching power supply.

Description

TECHNICAL FIELD

[0001] The utility model relates to high frequency transformer technical field, concretely relates to a high frequency water -cooled transformer and high frequency switching power supply. BACKGROUND

[0002] High frequency transformer is the power transformer of work frequency more than intermediate frequency (10kHz), is mainly used in high frequency switching power supply and makes high frequency switching power supply transformer. High frequency transformer heating is due to resistance loss, core loss, resonance loss and air friction loss etc.

[0003] High frequency water -cooled transformer is a kind of high frequency transformer using water as cooling medium, and its working principle is different from the transformer of traditional through air self-cooling heat dissipation or other forms such as auxiliary heat dissipation channel, heat sink, heat dissipation glue, fan cooling etc.In water-cooled transformer, generally there are three components, the core and coil of transformer and cooling system, the core and coil of transformer are responsible for changing the size of voltage, and cooling system undertakes the work of heat dissipation.

[0004] However, the volume of the existing high frequency water-cooled transformer is large, and it is not convenient to assemble in the high frequency switching power supply, and the cooling area of the cooling system is small, and the water-cooled heat dissipation effect is limited. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a kind of high frequency water-cooled transformer and high frequency switching power supply to solve the volume of high frequency water-cooled transformer of prior art is large, and it is not convenient to assemble in the high frequency switching power supply problem.

[0006] Firstly, the utility model provides a kind of high frequency water-cooled transformer, comprising:

[0007] Shell has installation cavity;

[0008] Coil assembly is arranged in the installation cavity, and the center of the coil assembly has through hole;

[0009] Conductive rod is arranged in the through hole of the coil assembly, and the two ends of the conductive rod are adapted to be electrically connected with external equipment respectively;

[0010] The inside of the shell is formed with liquid cooling channel, and the liquid cooling channel is formed with cooling liquid inlet and cooling liquid outlet on the shell.

[0011] The utility model technical scheme has the following advantages:

[0012] Through the combination of shell, coil assembly and conductive rod, the high frequency water-cooled transformer with smaller volume and better water-cooled heat dissipation effect is formed, so it is more suitable for assembling into high frequency switching power supply.

[0013] Optionally, the coil assembly comprises a core and a coil wound on the core, the core has a center hole, a conductive rod is arranged in the center hole, one end of the conductive rod is used for electrically connecting with the output negative pole, and the other end of the conductive rod is used for electrically connecting with the output positive pole. In use, the power input end is connected through the coil, and the power output end is connected through the conductive rod, so that the transformation is completed between the coil and the conductive rod.

[0014] Optionally, the shell is made of conductive material, and the end of the conductive rod for electrically connecting with the output negative pole is electrically connected with the shell. Through this arrangement, the output negative pole is connected with the shell through the shell, thereby saving the arrangement of the electrically conductive plate and making the structure simpler.

[0015] Optionally, one end of the mounting cavity of the shell is connected with a first electrically conductive plate, and the other end is connected with a second electrically conductive plate, and the first electrically conductive plate and the second electrically conductive plate are connected with the shell through fasteners respectively. Through this arrangement, the electrically conductive plate and the shell are connected as a whole, making the overall structure more compact.

[0016] Optionally, the conductive rod comprises a first conductive rod and a second conductive rod arranged side by side. Through the arrangement of the two conductive rods, two different voltages can be outputted.

[0017] Optionally, one end of the first conductive rod is connected with the first electrically conductive plate, and the other end passes through the second electrically conductive plate and is used for connecting with the first connecting row. Through the first connecting row for connecting the output positive pole of the first conductive rod, multiple output ports can be formed for connecting multiple devices.

[0018] Optionally, one end of the second conductive rod is connected with the second electrically conductive plate, and the other end passes through the first electrically conductive plate and is used for connecting with the second connecting row. Through the second connecting row for connecting the output positive pole of the second conductive rod, multiple output ports can be formed for connecting multiple devices.

[0019] Optionally, the first conductive rod and the second conductive rod are both semicylinders, and the two conductive rods are symmetrically arranged in the core to form a cylinder. Through this arrangement, the conductive rod can be better accommodated in the through hole of the coil assembly, improving the compactness of assembly.

[0020] Optionally, the shell has a first mounting plane and a second mounting plane arranged symmetrically, and the liquid cooling channel is arranged on the side of the shell close to the first mounting plane. Through this arrangement, the shell can be more conveniently mounted between the two connecting plates of the high-frequency switching power supply.

[0021] Secondly, this utility model also provides a high-frequency switching power supply, comprising: a first connecting plate and a second connecting plate arranged in parallel and spaced apart, and a high-frequency water-cooled transformer as described in any one of the above-mentioned schemes disposed between the first connecting plate and the second connecting plate.

[0022] The technical solution of this utility model has the following advantages:

[0023] The internal structure of the high-frequency switching power supply is more compact. The high-frequency water-cooled transformer mentioned above can not only cool the coil assembly itself, but also cool other internal components of the high-frequency switching power supply. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 A perspective view of a specific embodiment of the high-frequency water-cooled transformer provided in this utility model;

[0026] Figure 2 for Figure 1 The exploded view of the high-frequency water-cooled transformer shown.

[0027] Figure 3 for Figure 1 Main view;

[0028] Figure 4 for Figure 4 Sectional view of line AA in the middle;

[0029] Figure 5 A front view of a specific embodiment of the high-frequency switching power supply provided in this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Outer shell; 2. Coil assembly; 3. First conductive rod; 4. Second conductive rod; 5. First conductive plate; 6. Second conductive plate; 7. First mounting surface; 8. Second mounting surface; 9. Coolant inlet; 10. Coolant outlet; 11. First connecting plate; 12. Second connecting plate. Detailed Implementation

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described in the following with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0033] The embodiments of the utility model will be described below with reference to the drawings. Figures 1 to 4

[0034] As shown in Figure 1 , Figure 2 , a specific implementation of the high-frequency water-cooled transformer provided by the present embodiment, comprising: shell 1, coil assembly 2 and conducting rod, the coil assembly 2 is arranged in the mounting cavity of the shell 1, the center of the coil assembly 2 has a through hole, the conducting rod is arranged in the through hole, and the two ends of the conducting rod are adapted to be electrically connected with external equipment respectively. That is to say, in the present embodiment, the conducting rod, the coil assembly 2 and the shell 1 are sequentially sleeved and arranged. Through the above-mentioned setting, the mechanism of the transformer is more compact, and it is more convenient to install in the high-frequency switching power supply.

[0035] As shown in Figure 1 , in the present embodiment, the inside of the shell 1 is formed with a liquid cooling channel, and the liquid cooling channel is formed with a cooling liquid inlet 9 and a cooling liquid outlet 10 on the shell 1. Through the setting, the shell 1 of the transformer is cooled by the cooling liquid, thereby improving the overall cooling effect of the transformer. Further, since the shell 1 is wrapped outside the coil assembly 2 as a whole, the coil assembly 2 has a large cooling area, thereby improving the cooling and heat dissipation effect of the coil assembly 2.

[0036] As shown in Figure 2 , in the high-frequency water-cooled transformer provided by the present embodiment, the coil assembly 2 comprises: a core and a coil wound on the core, the core has a center hole, the center hole is provided with a conducting rod, one end of the conducting rod is used for electrically connecting with the output negative pole, and the other end of the conducting rod is used for electrically connecting with the output positive pole. That is to say, in use, the two wiring ends of the coil are connected with the positive and negative poles of the input current respectively, and then the output is obtained through the conducting rod after being transformed.

[0037] Further, in the present embodiment, the shell 1 is made of conductive material, and the end of the conducting rod for electrically connecting with the output negative pole is electrically connected with the shell 1. That is to say, the shell 1 is used as the grounding end of the output power supply. Specifically, the shell 1 can be made of copper or iron material, etc.

[0038] As​Figure 2 As shown in the figure, in this embodiment, one end of the mounting cavity of the shell 1 is connected with the first conductive plate 5, and the other end is connected with the second conductive plate 6. The first conductive plate 5 and the second conductive plate 6 are connected with the shell 1 through fasteners respectively. That is, in this embodiment, the first conductive plate 5 and the second conductive plate 6 are used to electrically connect one end of the conductive rod with the shell 1. Through this arrangement, the two conductive plates are connected with the shell as a whole.

[0039] As shown in the figure, Figures 2-4 In this embodiment, the conductive rod includes the first conductive rod 3 and the second conductive rod 4 arranged side by side. Through this arrangement, the conductive rod can output two different voltages.

[0040] As shown in the figure, Figure 2 One end of the first conductive rod 3 is connected with the first conductive plate 5, and the other end passes through the second conductive plate 6 and is used to connect with the first connecting row. One end of the second conductive rod 4 is connected with the second conductive plate 6, and the other end passes through the first conductive plate 5 and is used to connect with the second connecting row. Through this arrangement, two different voltages are output through two different connecting rows, and the two different connecting rows can be arranged at two symmetrical ends of the shell 1, thereby facilitating the installation of the transformer.

[0041] As shown in the figure, Figure 4 In this embodiment, the first conductive rod 3 and the second conductive rod 4 are both semi-cylinders, and the two conductive rods are symmetrically arranged in the core to form a cylinder. Through this arrangement, the two conductive rods can be more conveniently arranged in the coil assembly 2.

[0042] As shown in the figure, Figure 4 In this embodiment, the shell 1 has a first mounting plane 7 and a second mounting plane 8 arranged symmetrically, and the liquid cooling channel is arranged on the side of the shell 1 close to the first mounting plane 7. In this way, the first mounting plane is connected with the connecting plate for outputting current, and the second mounting plane is connected with the circuit board of the high-frequency switching power supply. When the inlet and outlet of the liquid channel are communicated with the cooling liquid, the protruding electrical elements on the circuit board will not be affected.

[0043] As shown in the figure, Figure 5 In this embodiment, a specific implementation of a high-frequency switching power supply is also provided, which includes: a first connecting plate 11 and a second connecting plate 12 arranged in parallel and spaced apart; and the high-frequency water-cooled transformer described in the above scheme is arranged between the first connecting plate 11 and the second connecting plate 12.

[0044] Specifically, the first connecting plate 11 is used to connect the negative pole of the output power supply, and the second connecting plate 12 is used to connect the positive pole of the output power supply.

[0045] As Figure 5 shown in the embodiment, the first mounting plane 7 of the high-frequency water-cooled transformer is connected with the first connecting plate 11, and the second mounting plane 8 of the high-frequency water-cooled transformer is connected with the second connecting plate 12. Through the above setting, the shell 1 of the high-frequency water-cooled transformer can also dissipate heat for the first connecting plate 11 and the second connecting plate 12.

[0046] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope of the present application.

Claims

1. A high-frequency water-cooled transformer, characterized by, The utility model relates to a high-frequency water-cooled transformer, comprising: a shell (1) having a mounting cavity; a coil assembly (2) disposed in the mounting cavity, the coil assembly (2) having a through hole in the center thereof; a conductive rod disposed in the through hole of the coil assembly (2), both ends of the conductive rod being adapted to be electrically connected to external devices, respectively; the shell (1) having a liquid cooling channel formed therein, the liquid cooling channel having a cooling liquid inlet (9) and a cooling liquid outlet (10) formed on the shell (1).

2. The high-frequency water-cooled transformer according to claim 1, characterized in that The coil assembly (2) comprises an iron core and a coil wound on the iron core, the iron core having a central hole in which the conductive rod is disposed, one end of the conductive rod being adapted to be electrically connected to an output negative pole, and the other end of the conductive rod being adapted to be electrically connected to an output positive pole.

3. The high-frequency water-cooled transformer according to claim 2, characterized in that The shell (1) is made of an electrically conductive material, and the end of the conductive rod adapted to be electrically connected to the output negative pole is electrically connected to the shell (1).

4. The high-frequency water-cooled transformer according to claim 2, characterized in that, One end of the mounting cavity of the shell (1) is connected to a first conductive plate (5), and the other end of the mounting cavity is connected to a second conductive plate (6), the first conductive plate (5) and the second conductive plate (6) being connected to the shell (1) by fasteners, respectively.

5. The high-frequency water-cooled transformer according to claim 4, characterized in that The conductive rod comprises a first conductive rod (3) and a second conductive rod (4) disposed side by side.

6. The high-frequency water-cooled transformer according to claim 5, characterized in that One end of the first conductive rod (3) is connected to the first conductive plate (5), and the other end of the first conductive rod (3) passes through the second conductive plate (6) and is adapted to be connected to a first connection row.

7. The high-frequency water-cooled transformer according to claim 5, characterized in that One end of the second conductive rod (4) is connected to the second conductive plate (6), and the other end of the second conductive rod (4) passes through the first conductive plate (5) and is adapted to be connected to a second connection row.

8. The high-frequency water-cooled transformer according to claim 5, characterized in that, Both the first conductive rod (3) and the second conductive rod (4) are semi-cylinders, and the two conductive rods constitute a cylinder in the iron core.

9. The high-frequency water-cooled transformer according to any one of claims 1 to 8, characterized in that, The shell (1) has a first mounting plane (7) and a second mounting plane (8) disposed symmetrically, and the liquid cooling channel is disposed on the side of the shell (1) close to the first mounting plane (7).

10. A high frequency switching power supply, characterized by The utility model relates to a high-frequency water-cooled transformer, comprising: first and second connection plates (11) and (12) disposed in parallel and spaced apart, and a high-frequency water-cooled transformer according to any one of claims 1-9 disposed between the first and second connection plates (11) and (12).

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