High-frequency transformer with cooling function

Abstract

The invention relates to the technical field of transformers, in particular to a high-frequency transformer with a cooling function, which comprises a framework, a winding and a magnetic core, the winding and the magnetic core are mounted on the framework, a trigger device, a medium circulation cavity and a medium transfer cavity are arranged in the framework, and the three cavities form a pressed circulation cooling pipeline; according to the high-frequency transformer, cooling is carried out in turn through the two sets of cooling media, the cooling efficiency is greatly improved, the high-temperature pressure in the high-frequency transformer is relieved, and the high-frequency transformer is high in cooling efficiency; the outside of the magnetic core of the high-frequency transformer and the medium pre-cooling cavity can be cooled through the heat dissipation unit, the cooling effect is good through the mode that internal cooling and external cooling are combined, the fault rate of the high-frequency transformer is reduced, and meanwhile the service life of the high-frequency transformer is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, and in particular to a high-frequency transformer with a temperature reduction function. Background Art

[0002] The high-frequency transformer is the most important component of the switching power supply. Its function is to transform the high-frequency pulse wave generated by the triode in the switching power supply through the high-frequency transformer and output alternating current.

[0003] The high-frequency transformer needs to be insulated before being installed in the switching power supply, and this treatment will make it difficult for the high-frequency transformer to dissipate heat during operation. This is mainly manifested in the side of the winding being close to the frame, resulting in a high temperature there and making it difficult to dissipate heat. When the temperature of the high-frequency transformer exceeds the limit, the temperature must be lowered immediately, otherwise the insulation layer of the high-frequency transformer will be easily damaged, and then it will be easily broken down by high voltage, resulting in high-frequency transformer failure or safety accidents.

[0004] Most of the existing high-frequency transformers are cooled by cooling outside the transformer, which increases the volume of the high-frequency transformer and is not conducive to production and processing; some high-frequency transformers use internal ventilation to dissipate heat, but the cooling effect is limited and the cooling effect is not obvious, the failure rate is still relatively common, and there are shortcomings. Summary of the invention

[0005] The present invention aims to at least improve one of the technical problems existing in the prior art. To this end, the present invention proposes a high-frequency transformer with a temperature reduction function.

[0006] A high-frequency transformer with a temperature reduction function according to an embodiment of the first aspect of the present invention comprises:

[0007] A frame and a winding and a magnetic core mounted on the frame; a trigger device, a first pipe and a medium flow cavity communicated with the first pipe are arranged in the side wall of the frame, the first pipe is provided with a first one-way solenoid valve, a medium transfer cavity is arranged at the bottom of the frame, the medium transfer cavity is communicated with the medium flow cavity through a second pipe, the second pipe is provided with a second one-way solenoid valve, a return pipe is arranged in the side wall of the frame away from the first pipe, and the return pipe extends into the bottom of the medium transfer cavity;

[0008] A medium precooling cavity, the medium precooling cavity is arranged outside the top of the magnetic core, the medium precooling cavity is communicated with the first pipeline, wherein the medium precooling cavity, the medium circulation cavity, the medium transfer cavity and the return pipeline form a pressurized circulating cooling pipeline;

[0009] A microcontroller and a battery cell, wherein the microcontroller and the battery cell are arranged on the bottom step of the frame, the microcontroller is electrically connected to the battery cell, the signal input end of the microcontroller is electrically connected to the trigger device, and the action output end of the microcontroller is electrically connected to the first one-way solenoid valve and the second one-way solenoid valve respectively;

[0010] A heat dissipation unit, which is disposed on the side wall of the magnetic core and is used to reduce the temperature of the magnetic core. Specifically, the heat dissipation unit is a heat dissipation fin;

[0011] A pressure reflux device, the pressure reflux device comprising an air pressure source and an air pressure pipeline communicating with the air pressure source, the air pressure pipeline passing through the upper surface of the medium transfer chamber and being flush with the upper surface, the air pressure source control valve being electrically connected to the action output terminal of the microcontroller;

[0012] A trigger unit is arranged at one side of the medium transfer chamber, and the trigger unit is electrically connected to the signal input terminal of the microcontroller, and is used to link the pressure reflux device to press the flowing medium from the medium transfer chamber into the medium precooling chamber.

[0013] According to the high-frequency transformer with a cooling function of the embodiment of the present invention, a medium circulation cavity is set in the winding and the frame, and internal cooling is achieved by water cooling. When the high-frequency transformer is loaded with a high load and causes its internal temperature to rise suddenly, the medium in the medium circulation cavity needs to be replaced in time. The second one-way solenoid valve is linked by a trigger device to open the second pipeline, and the high-temperature medium flows into the medium transfer cavity. At the same time, the first one-way solenoid valve opens the first pipeline after delayed start, and the low-temperature medium in the medium pre-cooling cavity flows into the medium circulation cavity to cool the winding, thereby achieving an efficient cooling effect inside the high-frequency transformer. When the high-temperature medium enters the medium transfer chamber, the trigger unit will be activated, thereby closing the second one-way solenoid valve and the second channel, and at the same time transmitting a signal to the microcontroller to drive the pressure reflux device to work, and press the high-temperature medium in the medium transfer chamber into the medium pre-cooling chamber for cooling. The two groups of cooling media are used to cool down in turn, which greatly improves the cooling efficiency and relieves the high-temperature pressure inside the high-frequency transformer. The heat dissipation unit can be used to cool down the outside of the high-frequency transformer core and the medium pre-cooling chamber. The cooling effect is good by combining internal and external cooling, which reduces the failure rate of the high-frequency transformer and increases the service life of the high-frequency transformer.

[0014] In a possible implementation of the first aspect, the trigger device includes a first heat conductive sheet, a first filling cavity, a first sleeve, a first piston rod, a first light rod, a conductive metal sheet, a first switch contact, and a second switch contact, wherein the first heat conductive sheet is arranged on a skeleton side wall close to the medium circulation cavity and is in direct contact with the medium in the medium circulation cavity, the first heat conductive sheet is connected to the first filling cavity to form a closed first gas chamber, the interior of the first gas chamber is filled with expanding gas, the upper surface of the first filling cavity is connected to the first sleeve, a first piston rod is arranged in the first sleeve, the first piston rod is connected to the conductive metal sheet through the first light rod, a time delay relay, a first intermediate relay, a first switch contact, and a second switch contact are installed in the skeleton side wall, the conductive metal sheet is located directly below the first switch contact and the second switch contact, the conductive metal sheet, the first switch contact, the second switch contact, the time delay relay coil end, and the first intermediate relay coil end are connected in series to a microcontroller to form a first group of relay coil end loops, the first heat conductive sheet is heated to expand the gas to push the piston rod, and the conductive metal sheet contacts the first switch contact and the second switch contact to close the first group of relay coil end loops.

[0015] In a possible implementation manner of the first aspect, the gas filled in the first gas chamber is any one of hydrogen, helium, and nitrogen, so as to facilitate expansion due to heat and thus push the first piston rod.

[0016] In a possible implementation manner of the first aspect, the conductive metal sheet is in a bow shape, so as to facilitate linkage control of different one-way solenoid valve actions.

[0017] In a possible implementation of the first aspect, the first one-way solenoid valve is electrically connected to the switch end of the time delay relay and then connected to the microcontroller; the second one-way solenoid valve is electrically connected to the switch end of the first intermediate relay and then connected to the microcontroller.

[0018] In a possible implementation of the first aspect, the end of the return pipe away from the medium transfer chamber passes through the bottom of the medium pre-cooling chamber, and the height of the end of the return pipe is higher than the height of the upper surface of the medium pre-cooling chamber, so that the medium subjected to pressurized reflux will not flow back to the medium transfer chamber after entering the medium pre-cooling chamber.

[0019] In a possible implementation of the first aspect, the trigger unit includes a second heat conductive plate, a second filling chamber, a second sleeve, a second piston rod, a second light rod, a push block and a contact switch, wherein the second heat conductive plate is arranged on the side wall of the medium transfer chamber and is in direct contact with the medium in the medium transfer chamber, the second heat conductive plate and the second filling chamber are connected to form a closed second gas chamber, the interior of the second gas chamber is filled with expansion gas, the upper surface of the second filling chamber is connected to the second sleeve, a second piston rod is arranged in the second sleeve, the second piston rod is connected to the push block through the second light rod, a contact switch is installed on the inner wall of the bottom of the skeleton, the push block and the contact switch are arranged opposite to each other, the contact switch is electrically connected to the signal input terminal of the microcontroller, and is used to provide an action signal for the pressure reflux device to work.

[0020] In a possible implementation manner of the first aspect, the gas filled in the second gas chamber is any one of hydrogen, helium, and nitrogen, so as to facilitate expansion due to heat and thus push the second piston rod.

[0021] In a possible implementation manner of the first aspect, an inner wall of the first gas chamber and / or the second gas chamber is provided with a gas flexible film to provide driving force when the gas expands.

[0022] In a possible implementation manner of the first aspect, when the high-frequency transformer is in normal use, at least one of the medium precooling chamber, the medium circulation chamber, and the medium transfer chamber is free of medium.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 is an overall schematic diagram of a high-frequency transformer with a temperature reduction function according to an embodiment of the present invention;

[0026] Figure 2 is a structural schematic diagram of a high-frequency transformer with a temperature reduction function according to an embodiment of the present invention;

[0027] Figure 3 is an enlarged schematic diagram of part A of a high-frequency transformer with a temperature reduction function according to an embodiment of the present invention;

[0028] Figure 4is an enlarged schematic diagram of part B of a high-frequency transformer with a temperature reduction function according to an embodiment of the present invention;

[0029] Figure 5 is a schematic structural diagram of a trigger unit of a high-frequency transformer with a temperature reduction function according to an embodiment of the present invention;

[0030] Figure 6 2 is a schematic diagram of the internal frame of a dielectric precooling chamber of a high-frequency transformer with a temperature reduction function according to an embodiment of the present invention;

[0031] Figure 7 is a schematic diagram of a first sleeve of a high-frequency transformer with a temperature reduction function according to an embodiment of the present invention;

[0032] Figure 8 It is a schematic diagram of the conductive metal sheet structure of a high-frequency transformer with a temperature reduction function according to an embodiment of the present invention.

[0033] Reference numerals:

[0034] Skeleton 1, winding 2, magnetic core 3, dielectric pre-cooling chamber 4, microcontroller 5, battery cell 6, heat dissipation unit 7, air pressure source 8, trigger unit 9.

[0035] A first pipeline 100, a first one-way solenoid valve 101, a medium flow chamber 110, a second pipeline 120, a second one-way solenoid valve 121, a medium transfer chamber 130, and a return pipeline 140;

[0036] Air pressure pipe 81;

[0037] A first heat conductive sheet 10, a first filling chamber 11, a first sleeve 12, a first piston rod 13, a first light rod 14, a conductive metal sheet 15, a first switch contact 18, and a second switch contact 19;

[0038] The second heat conducting plate 91 , the second filling chamber 92 , the second sleeve 93 , the second piston rod 94 , the second light rod 95 , the push block 96 , and the contact switch 97 . DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0042] Example 1

[0043] A high-frequency transformer with a temperature reduction function according to an embodiment of the first aspect of the present invention comprises:

[0044] A skeleton 1 and a winding 2 and a magnetic core 3 mounted on the skeleton 1, wherein the winding 2 is mounted in the skeleton 1; the magnetic core 3 surrounds the outer wall of the skeleton 1; a trigger device, a first pipe 100 and a medium flow cavity 110 communicating with the first pipe 100 are arranged in the side wall of the skeleton 1, the first pipe 100 is provided with a first one-way solenoid valve 101, a medium transfer cavity 130 is arranged at the bottom of the skeleton 1, the medium transfer cavity 130 is communicated with the medium flow cavity 110 through a second pipe 120, the second pipe 120 is provided with a second one-way solenoid valve 121, and a return pipe 140 is arranged in the side wall of the skeleton 1 away from the first pipe 100, and the return pipe 140 extends into the bottom of the medium transfer cavity 130;

[0045] The medium precooling chamber 4 is arranged outside the top of the magnetic core 3, and the medium precooling chamber 4 is communicated with the first pipeline 100, wherein the medium precooling chamber 4, the medium circulation chamber 110, the medium transfer chamber 130 and the return pipeline 140 form a pressurized circulating cooling pipeline;

[0046] A microcontroller 5 and a battery cell 6, wherein the microcontroller 5 and the battery cell 6 are arranged on the bottom step of the frame 1, the microcontroller 5 is electrically connected to the battery cell 6, the signal input end of the microcontroller 5 is electrically connected to the trigger device, and the action output end of the microcontroller 5 is electrically connected to the first one-way solenoid valve 101 and the second one-way solenoid valve 121 respectively;

[0047] A heat dissipation unit 7, which is disposed on a side wall of the magnetic core 3 and is used to reduce the temperature of the magnetic core 3;

[0048] A pressure reflux device, the pressure reflux device comprising an air pressure source 8 and an air pressure pipe 81 communicating with the air pressure source 8, the air pressure pipe 81 passing through the upper surface of the medium transfer chamber 130 and being flush with the upper surface, the control valve of the air pressure source 8 being electrically connected to the action output end of the microcontroller 5;

[0049] The trigger unit 9 is arranged on one side of the medium transfer chamber 130 , and the trigger unit 9 is electrically connected to the signal input end of the microcontroller 5 , and is used to link the pressure reflux device to press the flowing medium from the medium transfer chamber 130 into the medium pre-cooling chamber 4 .

[0050] According to the high-frequency transformer with a cooling function of the embodiment of the present invention, a medium circulation cavity is set in the winding and the frame, and internal cooling is achieved by water cooling. When the high-frequency transformer is loaded with a high load and causes its internal temperature to rise suddenly, the medium in the medium circulation cavity needs to be replaced in time. The second one-way solenoid valve is linked by a trigger device to open the second pipeline, and the high-temperature medium flows into the medium transfer cavity. At the same time, the first one-way solenoid valve opens the first pipeline after delayed start, and the low-temperature medium in the medium pre-cooling cavity flows into the medium circulation cavity to cool the winding, thereby achieving an efficient cooling effect inside the high-frequency transformer. After the high-temperature medium enters the medium transfer chamber, the trigger unit 9 will be activated, thereby closing the second one-way solenoid valve and the second channel, and at the same time transmitting a signal to the microcontroller to drive the pressure reflux device to work, and press the high-temperature medium in the medium transfer chamber into the medium pre-cooling chamber for cooling. The two groups of cooling media are used to cool down in turn, which greatly improves the cooling efficiency and relieves the high-temperature pressure inside the high-frequency transformer. The heat dissipation unit can cool down the outside of the high-frequency transformer core and the medium pre-cooling chamber. The cooling effect is good by combining internal and external cooling, which reduces the failure rate of the high-frequency transformer and increases the service life of the high-frequency transformer.

[0051] It should be noted that the trigger device includes a first heat conductive sheet 10, a first filling cavity 11, a first sleeve 12, a first piston rod 13, a first light rod 14, a conductive metal sheet 15, a first switch contact 18, and a second switch contact 19, wherein the first heat conductive sheet 10 is arranged on the skeleton side wall close to the medium circulation cavity 110 and is in direct contact with the medium in the medium circulation cavity 110, the first heat conductive sheet 10 is connected to the first filling cavity 11 to form a closed first gas chamber, the interior of the first gas chamber is filled with expansion gas, the upper surface of the first filling cavity 11 is connected to the first sleeve 12, the first sleeve 12 is provided with a first piston rod 13, the first piston rod 13 and the conductive metal sheet 15 is connected through a first light rod 14, a time delay relay 16, a first intermediate relay 17, a first switch contact 18 and a second switch contact 19 are installed in the side wall of the skeleton 1, and the conductive metal sheet 15 is located directly below the first switch contact 18 and the second switch contact 19. The conductive metal sheet 15, the first switch contact 18, the second switch contact 19, the coil end of the time delay relay 16 and the coil end of the first intermediate relay 17 are connected in series to the microcontroller 5 to form a first group of relay coil end loops. The first heat conductive sheet 10 is heated to expand the gas to push the piston rod 13, and the conductive metal sheet 15 contacts the first switch contact 18 and the second switch contact 19 to close the first group of relay coil end loops.

[0052] It should be noted that the gas filled in the first gas chamber is any one of hydrogen, helium and nitrogen, which is convenient for expansion due to heat to push the first piston rod 13 .

[0053] It should be noted that the conductive metal sheet 15 is in an arcuate shape, so as to facilitate linkage control of the actions of different one-way solenoid valves 101 .

[0054] It should be noted that the first one-way solenoid valve 101 is electrically connected to the switch end of the delay relay 16 and then connected to the microcontroller 5 ; the second one-way solenoid valve 121 is electrically connected to the switch end of the first intermediate relay 17 and then connected to the microcontroller 5 .

[0055] It should be noted that the end of the return pipe 140 away from the medium transfer chamber 130 passes through the bottom of the medium pre-cooling chamber 4, and the height of the end of the return pipe 140 is higher than the height of the upper surface of the medium pre-cooling chamber 4, so that the medium subjected to pressurized reflux will not flow back to the medium transfer chamber 130 after entering the medium pre-cooling chamber 4.

[0056] It should be noted that the trigger unit 9 includes a second heat conductive sheet 91, a second filling chamber 92, a second sleeve 93, a second piston rod 94, a second light rod 95, a push block 96 and a contact switch 97, wherein the second heat conductive sheet 91 is arranged on the side wall of the medium transfer chamber 130 and is in direct contact with the medium in the medium transfer chamber 130, the second heat conductive sheet 91 and the second filling chamber 92 are connected to form a closed second gas chamber, the interior of the second gas chamber is filled with expansion gas, the upper surface of the second filling chamber 92 is connected to the second sleeve 93, the second sleeve 93 is provided with a second piston rod 94, the second piston rod 94 and the push block 96 are connected through the second light rod 95, a contact switch 97 is installed on the inner wall of the bottom of the skeleton 1, the push block 96 and the contact switch 97 are arranged opposite to each other, and the contact switch 97 is electrically connected to the signal input end of the microcontroller 5 for providing an action signal for the pressure reflux device to work.

[0057] It should be noted that the gas filled in the second gas chamber is any one of hydrogen, helium and nitrogen, which is convenient for expansion due to heat to push the second piston rod 94 .

[0058] It should be noted that the inner wall of the first gas chamber and / or the second gas chamber is provided with a gas flexible film to provide driving force when the gas expands.

[0059] It should be noted that when the high-frequency transformer is in normal use, at least one of the medium pre-cooling chamber 4 , the medium circulation chamber 110 and the medium transfer chamber 130 is free of medium.

[0060] Optionally, the medium is water but is not limited thereto.

[0061] Optionally, the heat dissipation unit 7 is a heat dissipation fin but is not limited thereto.

[0062] Working principle:

[0063] The present invention realizes internal cooling by arranging a medium flow cavity in the winding and the frame, and uses water cooling to cool the inside. The outside of the high-frequency transformer core and the medium pre-cooling cavity can be cooled by the heat dissipation unit. The cooling effect is good by combining internal and external cooling, which reduces the failure rate of the high-frequency transformer and increases the service life of the high-frequency transformer.

[0064] When the high-frequency transformer is under high load and its internal temperature rises suddenly, when the medium temperature in the medium circulation cavity is higher than the preset target value, the first heat conducting sheet conducts heat to the first filling cavity, and the gas in the first filling cavity expands due to the heat, thereby pushing the first piston rod, driving the conductive metal sheet to connect the first switch contact and the second switch contact, thereby closing the first group of relay coil end loops, first opening the second pipeline where the second one-way solenoid valve is located, and then opening the first pipeline where the first one-way solenoid valve is located, so that the medium in the medium circulation cavity is replaced in time, and the low-temperature medium in the medium pre-cooling cavity flows into the medium circulation cavity to cool the winding, thereby achieving an efficient cooling effect inside the high-frequency transformer.

[0065] Similarly, when the high-temperature medium enters the medium transfer chamber, the trigger unit will be activated, and the second heat conductive sheet will transfer the heat to the second filling chamber. The gas in the second filling chamber will expand due to the heat, thereby pushing the second piston rod, driving the push block to close the contact switch, thereby transmitting an electrical signal to the microcontroller for closing the second one-way solenoid valve and the second channel. At the same time, the signal links the microcontroller to link the pressure reflux device to work, and presses the high-temperature medium in the medium transfer chamber into the medium pre-cooling chamber for cooling. The two groups of cooling media take turns to cool down, which greatly improves the cooling efficiency and relieves the high-temperature pressure inside the high-frequency transformer.

[0066] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the invention.

[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0068] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Mentioning "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present embodiment application. The appearance of this phrase in various positions in the specification is not necessarily the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It can be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0069] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A high-frequency transformer with a cooling function, characterized in that: include: A frame (1) and a winding (2) and a magnetic core (3) mounted on the frame (1); a trigger device, a first pipe (100) and a medium flow chamber (110) communicating with the first pipe (100) are arranged in the side wall of the frame (1); the first pipe (100) is provided with a first one-way solenoid valve (101); a medium transfer chamber (130) is arranged at the bottom of the frame (1); the medium transfer chamber (130) is communicated with the medium flow chamber (110) via a second pipe (120); the second pipe (120) is provided with a second one-way solenoid valve (121); a return pipe (140) is arranged in the side wall of the frame (1) away from the first pipe (100); the return pipe (140) extends into the bottom of the medium transfer chamber (130); A medium precooling chamber (4), the medium precooling chamber (4) being arranged on the outside of the top of the magnetic core (3), the medium precooling chamber (4) being in communication with the first pipe (100), wherein the medium precooling chamber (4), the medium circulation chamber (110), the medium transfer chamber (130) and the return pipe (140) form a pressurized circulating cooling pipeline; A microcontroller (5) and a battery cell (6), wherein the microcontroller (5) and the battery cell (6) are arranged on the bottom step of the frame (1), the microcontroller (5) and the battery cell (6) are electrically connected, the signal input end of the microcontroller (5) is electrically connected to the trigger device, and the action output end of the microcontroller (5) is electrically connected to the first one-way solenoid valve (101) and the second one-way solenoid valve (121) respectively; A heat dissipation unit (7), wherein the heat dissipation unit (7) is disposed on a side wall of the magnetic core (3); A pressure reflux device, the pressure reflux device comprising an air pressure source (8) and an air pressure pipe (81) communicating with the air pressure source (8), the air pressure pipe (81) passing through the upper surface of the medium transfer chamber (130) and being flush with the upper surface, the air pressure source (8) control valve being electrically connected to the action output end of the microcontroller (5); A trigger unit (9), the trigger unit (9) being arranged on one side of the medium transfer chamber (130), and the trigger unit (9) being electrically connected to a signal input end of the microcontroller (5).

2. A high frequency transformer with a cooling function according to claim 1, characterized in that: The trigger device comprises a first heat conductive sheet (10), a first filling chamber (11), a first sleeve (12), a first piston rod (13), a first light rod (14), a conductive metal sheet (15), a first switch contact (18), and a second switch contact (19), wherein the first heat conductive sheet (10) is arranged on a skeleton side wall close to the medium circulation chamber (110) and is in direct contact with the medium in the medium circulation chamber (110), the first heat conductive sheet (10) is connected to the first filling chamber (11) to form a sealed first gas chamber, the interior of the first gas chamber is filled with expansion gas, the upper surface of the first filling chamber (11) is connected to the first sleeve (12), and the first sleeve (12) ) is provided with a first piston rod (13), the first piston rod (13) is connected to the conductive metal sheet (15) through a first light rod (14), a time delay relay (16), a first intermediate relay (17), a first switch contact (18) and a second switch contact (19) are installed in the side wall of the skeleton (1), the conductive metal sheet (15) is located directly below the first switch contact (18) and the second switch contact (19), and the conductive metal sheet (15), the first switch contact (18), the second switch contact (19), the coil end of the time delay relay (16) and the coil end of the first intermediate relay (17) are connected in series to the microcontroller (5) to form a first group of relay coil end loops.

3. The high-frequency transformer with a cooling function according to claim 1, characterized in that: The gas filled in the first gas chamber is any one of hydrogen, helium and nitrogen.

4. The high-frequency transformer with a cooling function according to claim 1, characterized in that: The conductive metal sheet (15) is in an arcuate shape.

5. The high-frequency transformer with a temperature reduction function according to claim 2, characterized in that: The first one-way solenoid valve (101) is electrically connected to the switch end of the time delay relay (16) and then connected to the microcontroller (5); the second one-way solenoid valve (121) is electrically connected to the switch end of the first intermediate relay (17) and then connected to the microcontroller (5).

6. The high-frequency transformer with a temperature reduction function according to claim 1, characterized in that: The end of the return pipe (140) away from the medium transfer chamber (130) passes through the bottom of the medium precooling chamber (4), and the height of the end of the return pipe (140) is higher than the height of the upper surface of the medium precooling chamber (4).

7. The high-frequency transformer with a temperature reduction function according to claim 1, characterized in that: The trigger unit (9) comprises a second heat conducting plate (91), a second filling chamber (92), a second sleeve (93), a second piston rod (94), a second light rod (95), a push block (96) and a contact switch (97), wherein the second heat conducting plate (91) is arranged on the side wall of the medium transfer chamber (130) and is in direct contact with the medium in the medium transfer chamber (130); the second heat conducting plate (91) and the second filling chamber (92) are connected to form a sealed second gas chamber, the interior of the second gas chamber is filled with expansion gas, the upper surface of the second filling chamber (92) is connected to the second sleeve (93), a second piston rod (94) is arranged in the second sleeve (93), the second piston rod (94) and the push block (96) are connected through the second light rod (95), a contact switch (97) is installed on the inner wall of the bottom of the frame (1), the push block (96) and the contact switch (97) are arranged opposite to each other, and the contact switch (97) is electrically connected to the signal input end of the microcontroller (5).

8. The high-frequency transformer with a temperature reduction function according to claim 1, characterized in that: A gas flexible film is disposed on the inner wall of the first gas chamber and / or the second gas chamber.

9. The high-frequency transformer with a temperature reduction function according to claim 1, characterized in that: When the high-frequency transformer is in use, at least one of the medium precooling chamber (4), the medium circulation chamber (110) and the medium transfer chamber (130) is free of medium.

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