High-frequency transformer with heat dissipation framework

Abstract

The utility model relates to the technical field of high-frequency transformers, in particular to a high-frequency transformer with a heat dissipation framework, which comprises a first transformer magnetic core, and overhaul and maintenance mechanisms are arranged on the surfaces of the first transformer magnetic core and a second transformer magnetic core. The inner wall of the second transformer magnetic core and the inner wall of the heat dissipation framework body are each provided with a heat dissipation anti-overheating mechanism, and an oil changing and collecting mechanism is arranged in the bottom plate. The phenomenon that the surface of the transformer winding is damaged due to overheating in the use process of the high-frequency transformer is avoided, so that a user can overhaul and maintain the transformer winding conveniently when the high-frequency transformer is used, and the user can operate the high-frequency transformer more conveniently when the high-frequency transformer is used; and the oil outlet can be dredged when the high-frequency transformer is used, so that the phenomenon that the oil outlet is blocked by impurities in oil in a transformer winding when the high-frequency transformer is used is avoided, and the oil can be conveniently recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of high-frequency transformers, in particular to a high-frequency transformer with a heat dissipation skeleton. Background Technique

[0002] A high-frequency transformer is a power transformer whose operating frequency exceeds the intermediate frequency. It is mainly used as a high-frequency switching power supply transformer in a high-frequency switching power supply, and there are also those used as high-frequency inverter power transformers in high-frequency inverter power supplies and high-frequency inverter welders. A transformer is a device that transforms AC voltage, current, and impedance. When an alternating current passes through the primary coil, an alternating magnetic flux is generated in the iron core (or magnetic core), causing a voltage (or current) to be induced in the secondary coil.

[0003] At present, the heat dissipation of the transformer is mainly transferred to the heat dissipation fins through the oil immersion tank for natural heat dissipation. However, due to the general concentrated arrangement and installation of the heat dissipation fins, the heat on the heat dissipation fins is relatively concentrated and cannot be dissipated. In addition, the existing high-frequency transformers have some disadvantages to a certain extent. The high-frequency transformer has a high requirement for its heat dissipation efficiency during use, but the existing high-frequency transformer has a low heat dissipation efficiency during use and is prone to overheating and damage, which easily leads to overheating and damage on the surface of the transformer winding during the use of the high-frequency transformer; the high-frequency transformer needs to be overhauled and maintained during use, but the existing high-frequency transformer is not convenient for overhaul and maintenance, which makes it inconvenient and slow to assemble between the first transformer core and the second transformer core, and makes it inconvenient for the user to operate during the use of the high-frequency transformer; during the use of the high-frequency transformer, the failure of the high-frequency transformer oil may be caused by oil aging, increased acid value or dielectric loss angle, suspended impurities in the environment, and moisture problems. After the transformer oil fails, it must be replaced in time to ensure the normal operation of the high-frequency transformer. The existing high-frequency transformer does not have the function of replacing the oil during use, which makes it impossible to dredge the oil outlet during the use of the high-frequency transformer, and easily leads to the phenomenon that the oil outlet is blocked by impurities in the oil inside the transformer winding during the use of the high-frequency transformer. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-frequency transformer with a heat dissipation skeleton, so as to solve the problems of low heat dissipation efficiency, easy overheating and damage, inconvenient overhaul and maintenance, and lack of oil replacement function during the use of the high-frequency transformer mentioned in the above background technique.

[0005] To achieve the above object, the present utility model provides the following technical solutions: A high-frequency transformer with a heat dissipation skeleton, including a first transformer core, a second transformer core is arranged on the surface of the first transformer core, a bottom plate is installed below the first transformer core, one end of the bottom plate extends into the interior of the first transformer core, pins are installed on the surface at the bottom of the bottom plate, a transformer winding is installed inside the first transformer core and the second transformer core, a heat dissipation skeleton body is installed on the inner wall of the second transformer core, an oil outlet is installed on the surface at the bottom position of the transformer winding, sound-absorbing pads for noise reduction are installed on the inner walls of the first transformer core and the second transformer core, repair and maintenance mechanisms are arranged on the surfaces of the first transformer core and the second transformer core, the interior of the repair and maintenance mechanism includes a mounting block, an anti-detachment card, a stretching spring, an arc-shaped card and a fixing block, heat dissipation and overheat prevention mechanisms are arranged on the inner walls of the second transformer core and the heat dissipation skeleton body, the interior of the heat dissipation and overheat prevention mechanism includes a heat conduction plate, a heat conduction hole and a heat dissipation and overheat prevention part, an oil change collection mechanism is arranged inside the bottom plate, and the interior of the oil change collection mechanism includes an oil guide pipe, a mounting pipe and an oil change collection group.

[0006] Preferably, grooves are formed on the inner walls of the second transformer core, and arc-shaped cards are arranged inside the grooves. The arc-shaped cards are slidably matched with the inner walls of the grooves, and the arc-shaped cards are clamped and matched with the inner walls of the first transformer core. Stretching springs are installed on the surfaces of the arc-shaped cards, and one ends of the stretching springs are fixed to the inner walls of the grooves.

[0007] Preferably, fixing blocks are installed on the surfaces and inner walls of the second transformer core, mounting blocks are installed on the surfaces and inner walls of the first transformer core. The mounting blocks are slidably matched with the inner walls of the fixing blocks. Anti-detachment cards for preventing loosening are installed on the surfaces of the mounting blocks, and the anti-detachment cards are clamped and matched with the inner walls of the fixing blocks.

[0008] Preferably, the heat dissipation and overheat prevention part is arranged on the inner walls of the second transformer core and the heat dissipation skeleton body. The heat dissipation and overheat prevention part is composed of heat dissipation fins, heat dissipation through holes and a heat dissipation cavity. Heat conduction plates for heat conduction are installed inside the heat dissipation skeleton body. Heat dissipation cavities are formed inside the second transformer core, and heat dissipation fins for heat dissipation are installed inside the heat dissipation cavities through screws.

[0009] Preferably, equally spaced heat conduction holes are formed on the inner walls of the second transformer core. The heat conduction holes are communicated with the inside of the heat dissipation cavity and the inside of the heat dissipation skeleton body. Equally spaced heat dissipation through holes are formed on the inner walls of the second transformer core, and the heat dissipation through holes are communicated with the inside of the heat dissipation cavity.

[0010] Preferably, the oil change collection group is arranged inside the bottom plate. The oil change collection group is composed of an oil collection tank, a containing groove and a connecting block. A containing groove is formed inside the bottom plate, and an oil collection tank for collecting oil is installed inside the containing groove.

[0011] Preferably, an installation pipe is installed on the surface at the top position of the oil collection tank. One end of the installation pipe penetrates through the oil collection tank and extends into the interior of the oil collection tank. A guide oil pipe is arranged on the surface of the installation pipe, and one end of the guide oil pipe extends into the interior of the installation pipe.

[0012] Preferably, the guide oil pipe and the installation pipe are installed and fixed by screws. One end of the guide oil pipe is communicated with the interior of the oil outlet. Connecting blocks are installed on the surfaces on both sides of the oil collection tank, and the connecting blocks are slidably matched with the inner wall of the bottom plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The high-frequency transformer with a heat dissipation skeleton not only enables the high-frequency transformer to dissipate heat from the surface of the transformer winding in a timely manner during use, avoiding the phenomenon of overheating damage on the surface of the transformer winding during the use of the high-frequency transformer, making it convenient for the user to repair and maintain the transformer winding during the use of the high-frequency transformer. At the same time, it makes it more convenient and rapid to assemble between the first transformer core and the second transformer core of the high-frequency transformer, making it more convenient for the user to operate during the use of the high-frequency transformer. Moreover, it enables the high-frequency transformer to dredge the oil outlet during use, avoiding the phenomenon of blockage of the oil outlet due to impurities in the oil in the transformer winding during the use of the high-frequency transformer, so as to facilitate the recycling of the oil;

[0014] By providing a heat dissipation and anti-overheating mechanism, heat conduction treatment is carried out on the transformer windings inside the first transformer core and the second transformer core under the action of the heat conduction plate inside the heat dissipation skeleton body. Heat is absorbed under the action of the heat dissipation fins inside the heat dissipation cavity, so that the heat enters the interior of the heat dissipation cavity through the second transformer core. Subsequently, under the action of the heat dissipation fins, the heat inside the heat dissipation cavity is discharged from the interior of the first transformer core and the second transformer core through the heat dissipation through holes, realizing efficient heat dissipation treatment for the transformer windings inside the first transformer core and the second transformer core, achieving the function of heat dissipation and anti-overheating of the high-frequency transformer, thereby enabling the high-frequency transformer to dissipate heat from the surface of the transformer winding in a timely manner during use, avoiding the phenomenon of overheating damage on the surface of the transformer winding during the use of the high-frequency transformer;

[0015] By providing a maintenance mechanism, when the user needs to perform maintenance on the transformer windings inside the first transformer core and the second transformer core, the user pulls the second transformer core upward, causing the second transformer core to drive the fixed block to move. At this time, the mounting block slides inside the fixed block. At this time, the mounting block drives the anti-disengagement card away from the inside of the fixed block. At this time, under the elastic force of the spring extending inside the groove, the arc-shaped card is driven to move, causing the arc-shaped card to move away from the inside of the first transformer core and move into the groove, thereby removing the second transformer core from the surface of the first transformer core, and performing maintenance on the transformer windings inside the first transformer core and the second transformer core, realizing the function of convenient maintenance of the high-frequency transformer, thus making it convenient for the user to perform maintenance on the transformer windings when the high-frequency transformer is in use. At the same time, it makes the assembly between the first transformer core and the second transformer core of the high-frequency transformer more convenient and fast, and makes it more convenient for the user to operate when the high-frequency transformer is in use;

[0016] By providing an oil change collection mechanism, oil is discharged under the action of the oil outlet. The user installs the oil guide pipe on the surface of the installation pipe through screws, so that the oil inside the transformer winding enters the oil guide pipe and the installation pipe through the oil outlet, and then flows into the inside of the oil collection tank through the installation pipe. Under the action of the oil collection tank, the oil is centrally collected. Subsequently, the user pulls the oil collection tank inside the containing groove, causing the oil collection tank to drive the connecting block to slide inside the bottom plate. Under the action of the connecting block, the oil collection tank is guided, thereby pulling out the oil collection tank from the inside of the containing groove and processing the oil inside the oil collection tank, realizing the function of changing the oil of the high-frequency transformer, thus enabling the high-frequency transformer to dredge the oil outlet when in use, avoiding the phenomenon that the oil outlet inside the transformer winding of the high-frequency transformer is blocked by impurities, and facilitating the recycling of the oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0018] Figure 2 is a front sectional structure schematic diagram of the present utility model;

[0019] Figure 3 is of the present utility model Figure 2 amplified structure schematic diagram of the maintenance mechanism therein;

[0020] Figure 4 is of the present utility model Figure 2 amplified structure schematic diagram of the heat dissipation and overheat prevention mechanism therein;

[0021] Figure 5 is an amplified structure schematic diagram of the oil change collection mechanism of the present utility model.

[0022] In the figure: 1, the first transformer core; 101, the second transformer core; 102, the transformer winding; 103, the pin; 104, the sound-absorbing pad; 105, the heat dissipation skeleton body; 106, the bottom plate; 107, the oil outlet; 2, the maintenance mechanism; 21, the mounting block; 22, the anti-disengagement clip; 23, the extension spring; 24, the arc-shaped clip; 25, the fixing block; 3, the heat dissipation and overheat prevention mechanism; 31, the heat conduction plate; 32, the heat conduction hole; 33, the heat dissipation and overheat prevention part; 331, the heat dissipation fin; 332, the heat dissipation through hole; 333, the heat dissipation cavity; 4, the oil change and collection mechanism; 41, the oil guide pipe; 42, the installation pipe; 43, the oil change and collection group; 431, the oil collection tank; 432, the containing groove; 433, the connection block. Specific implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. In addition, the terms "first", "second", "third", "upper, lower, left, right", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. At the same time, in the description of the present invention, unless otherwise clearly defined and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] The structure of a high-frequency transformer with a heat dissipation skeleton provided by the present invention is as Figure 1 and Figure 2 shown, including the first transformer core 1. The surface of the first transformer core 1 is provided with the second transformer core 101. A bottom plate 106 is installed below the first transformer core 1. One end of the bottom plate 106 extends into the first transformer core 1. Pins 103 are installed on the surface at the bottom of the bottom plate 106. A transformer winding 102 is installed inside the first transformer core 1 and the second transformer core 101. A heat dissipation skeleton body 105 is installed on the inner wall of the second transformer core 101. An oil outlet 107 is installed on the surface at the bottom of the transformer winding 102. Sound-absorbing pads 104 for noise reduction are installed on the inner walls of the first transformer core 1 and the second transformer core 101.

[0025] Furthermore, as Figure 2 and Figure 3As shown in the figure, maintenance mechanisms 2 are provided on the surfaces of the first transformer core 1 and the second transformer core 101. The interior of the maintenance mechanism 2 includes a mounting block 21, an anti-loosening card 22, a stretching spring 23, an arc-shaped card 24 and a fixing block 25. Grooves are formed on the inner walls of the second transformer core 101, and arc-shaped cards 24 are arranged inside the grooves. The arc-shaped cards 24 are slidably engaged with the inner walls of the grooves, and the arc-shaped cards 24 are clamped and engaged with the inner walls of the first transformer core 1. Stretching springs 23 are mounted on the surfaces of the arc-shaped cards 24. One end of each stretching spring 23 is fixed to the inner wall of the groove. Fixing blocks 25 are mounted on the surfaces and inner walls of the second transformer core 101, and mounting blocks 21 are mounted on the surfaces and inner walls of the first transformer core 1. The mounting blocks 21 are slidably engaged with the inner walls of the fixing blocks 25. Anti-loosening cards 22 for preventing loosening are mounted on the surfaces of the mounting blocks 21, and the anti-loosening cards 22 are clamped and engaged with the inner walls of the fixing blocks 25.

[0026] During implementation, when the user needs to repair and maintain the transformer windings 102 inside the first transformer core 1 and the second transformer core 101, the user pulls up the second transformer core 101, causing the second transformer core 101 to drive the fixing block 25 to move. At this time, the mounting block 21 slides inside the fixing block 25. At this time, the mounting block 21 drives the anti-loosening card 22 away from the inside of the fixing block 25. At this time, under the elastic force of the stretching spring 23 inside the groove, the arc-shaped card 24 is driven to move, causing the arc-shaped card 24 to move away from the inside of the first transformer core 1 and move towards the inside of the groove, so as to remove the second transformer core 101 from the surface of the first transformer core 1, and perform repair and maintenance on the transformer windings 102 inside the first transformer core 1 and the second transformer core 101, so as to realize the function of convenient repair of the high-frequency transformer.

[0027] Furthermore, as Figure 2 and Figure 4As shown in the figure, heat dissipation and overheat prevention mechanisms 3 are provided on the inner walls of the second transformer core 101 and the heat dissipation skeleton body 105. The inside of the heat dissipation and overheat prevention mechanism 3 includes a heat conduction plate 31, heat conduction holes 32, and a heat dissipation and overheat prevention part 33. The heat dissipation and overheat prevention part 33 is arranged on the inner walls of the second transformer core 101 and the heat dissipation skeleton body 105. The heat dissipation and overheat prevention part 33 is composed of heat dissipation fins 331, heat dissipation through holes 332, and a heat dissipation cavity 333. Heat conduction plates 31 for heat conduction are installed inside the heat dissipation skeleton body 105. Heat dissipation cavities 333 are opened inside the second transformer core 101. Heat dissipation fins 331 for heat dissipation are installed inside the heat dissipation cavities 333 through screws. Equally spaced heat conduction holes 32 are opened on the inner walls of the second transformer core 101. The heat conduction holes 32 communicate with the inside of the heat dissipation cavities 333, and the heat conduction holes 32 communicate with the inside of the heat dissipation skeleton body 105. Equally spaced heat dissipation through holes 332 are opened on the inner walls of the second transformer core 101. The heat dissipation through holes 332 communicate with the inside of the heat dissipation cavities 333.

[0028] During implementation, under the action of the heat conduction plate 31 inside the heat dissipation skeleton body 105, heat conduction treatment is carried out on the transformer windings 102 inside the first transformer core 1 and the second transformer core 101. Under the action of the heat dissipation fins 331 inside the heat dissipation cavity 333, heat is absorbed, so that the heat enters the inside of the heat dissipation cavity 333 through the second transformer core 101. Subsequently, under the action of the heat dissipation fins 331, the heat inside the heat dissipation cavity 333 is discharged from the inside of the first transformer core 1 and the second transformer core 101 through the heat dissipation through holes 332, and efficient heat dissipation treatment is carried out on the transformer windings 102 inside the first transformer core 1 and the second transformer core 101 to realize the function of heat dissipation and overheat prevention of the high-frequency transformer.

[0029] Furthermore, as Figure 2 and Figure 5 shown, an oil change collection mechanism 4 is arranged inside the bottom plate 106. The inside of the oil change collection mechanism 4 includes an oil guide pipe 41, an installation pipe 42, and an oil change collection group 43. The oil change collection group 43 is arranged inside the bottom plate 106. The oil change collection group 43 is composed of an oil collection tank 431, a holding tank 432, and a connection block 433. A holding tank 432 is opened inside the bottom plate 106. An oil collection tank 431 for collecting oil liquid is installed inside the holding tank 432. An installation pipe 42 is installed on the surface at the top position of the oil collection tank 431. One end of the installation pipe 42 penetrates through the oil collection tank 431 and extends to the inside of the oil collection tank 431. An oil guide pipe 41 is arranged on the surface of the installation pipe 42. One end of the oil guide pipe 41 extends into the inside of the installation pipe 42. The oil guide pipe 41 and the installation pipe 42 are installed and fixed by screws. One end of the oil guide pipe 41 is connected to the inside of the oil outlet 107. Connection blocks 433 are installed on the surfaces on both sides of the oil collection tank 431. The connection blocks 433 are slidably matched with the inner wall of the bottom plate 106.

[0030] During implementation, oil is discharged under the action of the oil outlet 107. The user installs the oil guide pipe 41 on the surface of the installation pipe 42 through screws, so that the oil inside the transformer winding 102 enters the inside of the oil guide pipe 41 and the installation pipe 42 through the oil outlet 107, and then flows into the inside of the oil collecting tank 431 through the installation pipe 42. Under the action of the oil collecting tank 431, the oil is centrally collected. Subsequently, the user pulls the oil collecting tank 431 inside the containing groove 432, so that the oil collecting tank 431 drives the connecting block 433 to slide inside the bottom plate 106. Under the action of the connecting block 433, the oil collecting tank 431 is guided, so as to draw out the oil collecting tank 431 from the inside of the containing groove 432 and process the oil inside the oil collecting tank 431, so as to realize the function of replacing the oil of the high-frequency transformer.

[0031] Working principle: When in use, first place the first transformer core 1 at the designated position. Under the action of the heat conducting plate 31 inside the heat dissipation skeleton body 105, heat conduction treatment is carried out on the transformer winding 102 inside the first transformer core 1 and the second transformer core 101. Under the action of the heat dissipation fins 331 inside the heat dissipation cavity 333, heat is absorbed, so that the heat enters the inside of the heat dissipation cavity 333 through the second transformer core 101. Subsequently, under the action of the heat dissipation fins 331, the heat inside the heat dissipation cavity 333 is discharged from the inside of the first transformer core 1 and the second transformer core 101 through the heat dissipation through holes 332, and efficient heat dissipation treatment is carried out on the transformer winding 102 inside the first transformer core 1 and the second transformer core 101, so as to realize the function of heat dissipation and overheat prevention of the high-frequency transformer, so that the surface of the transformer winding 102 can be timely heat-dissipated when the high-frequency transformer is in use, and the phenomenon of overheat damage on the surface of the transformer winding 102 during the use of the high-frequency transformer is avoided.

[0032] Subsequently, when the user needs to repair and maintain the transformer windings 102 inside the first transformer core 1 and the second transformer core 101, the user pulls the second transformer core 101 upward, causing the second transformer core 101 to drive the fixing block 25 to move. At this time, the mounting block 21 slides inside the fixing block 25. At this time, the mounting block 21 drives the anti-disengagement card 22 away from the inside of the fixing block 25. At this time, under the elastic force of the extension spring 23 inside the groove, the arc-shaped card 24 is driven to move, causing the arc-shaped card 24 to move away from the inside of the first transformer core 1 and move into the groove, thereby removing the second transformer core 101 from the surface of the first transformer core 1, and performing repair and maintenance on the transformer windings 102 inside the first transformer core 1 and the second transformer core 101, so as to realize the function of convenient maintenance of the high-frequency transformer, thus making it convenient for the user to repair and maintain the transformer windings 102 when using the high-frequency transformer. At the same time, it makes it more convenient and fast to assemble the first transformer core 1 and the second transformer core 101 of the high-frequency transformer, and makes it more convenient for the user to operate when using the high-frequency transformer.

[0033] Subsequently, oil is discharged under the action of the oil outlet 107. The user installs the oil guide pipe 41 on the surface of the installation pipe 42 through screws, so that the oil inside the transformer winding 102 enters the oil guide pipe 41 and the installation pipe 42 through the oil outlet 107, and then flows into the inside of the oil collection tank 431 through the installation pipe 42. Under the action of the oil collection tank 431, the oil is centrally collected. Subsequently, the user pulls the oil collection tank 431 inside the holding tank 432, causing the oil collection tank 431 to drive the connecting block 433 to slide inside the bottom plate 106. Under the action of the connecting block 433, the oil collection tank 431 is guided, so as to draw out the oil collection tank 431 from the inside of the holding tank 432 and process the oil inside the oil collection tank 431, so as to realize the function of replacing the oil of the high-frequency transformer, thus enabling the high-frequency transformer to dredge the oil outlet 107 when in use, avoiding the phenomenon that the oil outlet 107 is blocked by impurities in the oil inside the transformer winding 102 when using the high-frequency transformer, facilitating the recycling of the oil, and finally completing the use work of the high-frequency transformer.

[0034] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A high-frequency transformer with a heat dissipation skeleton, comprising a first transformer core (1), characterized in that: A second transformer core (101) is provided on the surface of the first transformer core (1). A bottom plate (106) is installed below the first transformer core (1). One end of the bottom plate (106) extends into the interior of the first transformer core (1). Pins (103) are installed on the surfaces at the bottom positions of the bottom plate (106). A transformer winding (102) is installed inside the first transformer core (1) and the second transformer core (101). A heat dissipation skeleton body (105) is installed on the inner wall of the second transformer core (101). An oil outlet (107) is installed on the surface at the bottom position of the transformer winding (102). Sound-absorbing pads (104) for noise reduction are installed on the inner walls of the first transformer core (1) and the second transformer core (101). Maintenance mechanisms (2) are provided on the surfaces of the first transformer core (1) and the second transformer core (101). The interior of the maintenance mechanism (2) includes a mounting block (21), an anti-loosening clip (22), a stretching spring (23), an arc-shaped clip (24), and a fixing block (25). Heat dissipation and overheat prevention mechanisms (3) are provided on the inner walls of the second transformer core (101) and the heat dissipation skeleton body (105). The interior of the heat dissipation and overheat prevention mechanism (3) includes a heat conduction plate (31), heat conduction holes (32), and a heat dissipation and overheat prevention part (33). An oil change and collection mechanism (4) is provided inside the bottom plate (106). The interior of the oil change and collection mechanism (4) includes an oil guide pipe (41), a mounting pipe (42), and an oil change and collection group (43).

2. The high-frequency transformer with a heat dissipation skeleton according to claim 1, wherein: Grooves are formed in the inner walls of the second transformer core (101), and arc-shaped clips (24) are provided inside the grooves. The arc-shaped clips (24) are slidably engaged with the inner walls of the grooves. The arc-shaped clips (24) are snap-fitted with the inner walls of the first transformer core (1). Stretching springs (23) are installed on the surfaces of the arc-shaped clips (24). One end of each stretching spring (23) is fixed to the inner wall of the groove.

3. The high-frequency transformer with a heat dissipation skeleton according to claim 1, wherein: Fixing blocks (25) are installed on the surfaces and inner walls of the second transformer core (101). Mounting blocks (21) are installed on the surfaces and inner walls of the first transformer core (1). The mounting blocks (21) are slidably engaged with the inner walls of the fixing blocks (25). Anti-loosening clips (22) for preventing loosening are installed on the surfaces of the mounting blocks (21). The anti-loosening clips (22) are snap-fitted with the inner walls of the fixing blocks (25).

4. The high-frequency transformer with a heat dissipation skeleton according to claim 1, wherein: The heat dissipation and overheat prevention part (33) is arranged on the inner wall of the second transformer core (101) and the heat dissipation skeleton body (105). The heat dissipation and overheat prevention part (33) is composed of heat dissipation fins (331), heat dissipation through holes (332) and a heat dissipation cavity (333). Heat conduction plates (31) for heat conduction are installed inside the heat dissipation skeleton body (105). A heat dissipation cavity (333) is formed inside the second transformer core (101), and heat dissipation fins (331) for heat dissipation are installed inside the heat dissipation cavity (333) through screws.

5. The high-frequency transformer with a heat dissipation skeleton according to claim 1, wherein: Equidistantly spaced heat conduction holes (32) are formed in the inner wall of the second transformer core (101). The heat conduction holes (32) communicate with the inside of the heat dissipation cavity (333), and the heat conduction holes (32) communicate with the inside of the heat dissipation skeleton body (105). Equidistantly spaced heat dissipation through holes (332) are formed in the inner wall of the second transformer core (101), and the heat dissipation through holes (332) communicate with the inside of the heat dissipation cavity (333).

6. The high-frequency transformer with a heat dissipation skeleton according to claim 1, wherein: The oil change collection group (43) is arranged inside the bottom plate (106). The oil change collection group (43) is composed of an oil collection tank (431), a containing groove (432) and a connecting block (433). A containing groove (432) is formed inside the bottom plate (106), and an oil collection tank (431) for collecting oil liquid is installed inside the containing groove (432).

7. The high-frequency transformer with a heat dissipation skeleton according to claim 6, characterized in that: An installation pipe (42) is installed on the surface at the top position of the oil collection tank (431). One end of the installation pipe (42) penetrates through the oil collection tank (431) and extends to the inside of the oil collection tank (431). A guide oil pipe (41) is arranged on the surface of the installation pipe (42), and one end of the guide oil pipe (41) extends to the inside of the installation pipe (42).

8. The high-frequency transformer with a heat dissipation skeleton according to claim 7, wherein: The guide oil pipe (41) and the installation pipe (42) are installed and fixed by screws. One end of the guide oil pipe (41) communicates with the inside of the oil outlet (107). Connecting blocks (433) are installed on the surfaces on both sides of the oil collection tank (431), and the connecting blocks (433) are slidably matched with the inner wall of the bottom plate (106).

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