A high-frequency transformer with low losses

Abstract

The present invention discloses a high-frequency transformer with low loss, which relates to the technical field of transformers and includes a skeleton, an iron core, a first liquid storage cavity, a second liquid storage cavity, a third liquid storage cavity, a fourth liquid storage cavity, a through groove, an insertion rod, a fifth liquid storage cavity, a first flexible ball, a first spherical groove, a second flexible ball and a second spherical groove. The second spherical groove is arranged on one side of the second flexible ball. A first cavity is arranged inside the first flexible ball, and a second cavity is arranged inside the second flexible ball. A plurality of third flexible balls are symmetrically arranged on both sides of the inner wall of the through groove, and a third cavity is arranged inside the third flexible ball. The present invention can perform multiple cooling and heat dissipation treatments on the transformer, effectively enhance the cooling and heat dissipation effect of the transformer, keep the temperature of the transformer low, effectively reduce the loss, ensure the normal operation of the transformer, effectively enhance the connection effect between the skeleton and the iron core and the connection effect between the iron cores, avoid loosening, effectively enhance the stability of the transformer, and is convenient and fast to assemble.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and more specifically, the present invention relates to a high-frequency transformer with low losses. Background Art

[0002] A transformer is a complete set of voltage transformation equipment, which can be used for terminal power supply and ring network power supply. A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. Its main components are the primary coil, secondary coil, and iron core (magnetic core). Its main functions include: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), etc. According to its use, it can be divided into: power transformers and special transformers (such as electric furnace transformers, rectifier transformers, power frequency test transformers, voltage regulators, mine transformers, audio transformers, intermediate frequency transformers, high-frequency transformers, impulse transformers, instrument transformers, electronic transformers, reactors, current transformers, etc.). A high-frequency transformer is a power transformer with a working frequency exceeding the intermediate frequency (10 kHz), and is mainly used as a high-frequency switching power supply transformer in a high-frequency switching power supply, and is also used as a high-frequency inverter power supply transformer in a high-frequency inverter power supply and a high-frequency inverter welder.

[0003] Currently, the existing high-frequency transformers have low heat dissipation efficiency, high transformer temperature, which affects the normal operation of the transformer and high losses. Summary of the Invention

[0004] In order to overcome the above defects of the prior art, an embodiment of the present invention provides a high-frequency transformer with low losses. The problem to be solved by the present invention is: how to improve the heat dissipation efficiency of the high-frequency transformer, reduce the transformer temperature, reduce the losses, and ensure the normal operation of the transformer.

[0005] To achieve the above object, the present invention provides the following technical solution: A high-frequency transformer with low loss, comprising a bobbin and two iron cores. The two iron cores are respectively sleeved on both sides of the outside of the bobbin. A first liquid storage cavity is arranged inside the bobbin. A second liquid storage cavity is arranged at the top of the first liquid storage cavity inside the bobbin. A third liquid storage cavity is arranged at the bottom of the first liquid storage cavity inside the bobbin. A fourth liquid storage cavity is arranged inside the iron core. A through groove is opened at the center of the top of the bobbin. A plug rod matching the through groove is arranged on the outer wall of the iron core. A fifth liquid storage cavity is arranged inside the plug rod. The fifth liquid storage cavity communicates with the fourth liquid storage cavity. A plurality of first flexible balls are arranged on one side of the outer wall of the iron core. A first spherical groove matching the first flexible ball is arranged on the outer wall of the iron core. The first spherical groove is arranged on one side of the first flexible ball. A plurality of second flexible balls are arranged at one end of the outer wall of the plug rod. A second spherical groove matching the second flexible ball is arranged on the outer wall of the plug rod. The second spherical groove is arranged on one side of the second flexible ball. A first cavity is arranged inside the first flexible ball. A second cavity is arranged inside the second flexible ball. A plurality of third flexible balls are symmetrically arranged on both sides of the inner wall of the through groove. A third cavity is arranged inside the third flexible ball.

[0006] An embodiment of the present invention provides a high-frequency transformer with low loss. Coolant is injected into the second liquid storage cavity and the fourth liquid storage cavity. The coolant in the second liquid storage cavity flows to the first liquid storage cavity and the third liquid storage cavity, which can communicate the first liquid storage cavity, the second liquid storage cavity and the third liquid storage cavity. The coolant in the fourth liquid storage cavity flows to the fifth liquid storage cavity, which can fill the fourth liquid storage cavity and the fifth liquid storage cavity. The first liquid storage cavity, the second liquid storage cavity and the third liquid storage cavity can cool and dissipate heat inside the bobbin. The fifth liquid storage cavity can cool and dissipate heat on the inner side of the bobbin. The fourth liquid storage cavity can cool and dissipate heat on the outside of the bobbin. Multiple cooling and heat dissipation treatments can effectively enhance the cooling and heat dissipation effect of the transformer. The temperature of the transformer is not high, which can effectively reduce losses and ensure the normal operation of the transformer. When the iron core is sleeved on the outside of the bobbin, the plug rod is inserted into the through groove. The plug rod contacts the third flexible ball, which can squeeze and deform the third flexible ball. The third cavity can enhance the elastic deformation ability of the third flexible ball, which can effectively enhance the connection effect between the bobbin and the plug rod. When the two iron cores are connected together, the first flexible ball is inserted into the first spherical groove and the second flexible ball is inserted into the second spherical groove, which can assemble the two iron cores together. The first cavity can enhance the elastic deformation ability of the first flexible ball to ensure that the first flexible ball can be directly inserted into the first spherical groove. After the first flexible ball is inserted into the first spherical groove, the first cavity rebounds to perform limiting to avoid loosening. The second cavity can enhance the elastic deformation ability of the second flexible ball to ensure that the second flexible ball can be directly inserted into the second spherical groove. After the second flexible ball is inserted into the second spherical groove, the second cavity rebounds to perform limiting to avoid loosening. It can effectively enhance the stability of the transformer and the assembly is convenient and fast, so as to solve the problems raised in the above background technology.

[0007] In a preferred embodiment, a first sealing plug is movably connected to one side of the outer wall of the framework. The first sealing plug extends into the second liquid storage cavity. The first sealing plug can seal the second liquid storage cavity to prevent the coolant from flowing out of the framework. By opening the first sealing plug, the coolant in the framework can be discharged or coolant can be injected.

[0008] In a preferred embodiment, a second sealing plug is movably connected to one side of the outer wall of the iron core. The second sealing plug extends into the fourth liquid storage cavity. The second sealing plug can seal the fourth liquid storage cavity to prevent the coolant from flowing out of the iron core. By opening the second sealing plug, the coolant inside the iron core can be discharged or coolant can be injected.

[0009] In a preferred embodiment, the iron core and the plug rod are in an "E" - shaped structure. On both sides of the bottom of the framework outside the iron core, there are connecting plates. Several pins are provided at the bottom of the connecting plates. The "E" - shaped structure can facilitate the quick assembly of the iron core and the framework. The connecting plates support the pins. The winding coil wound around the framework is connected to the pins, and the pins are used for installing and connecting the transformer.

[0010] In a preferred embodiment, the first flexible balls and the first spherical grooves are arranged alternately, which can effectively strengthen the connection effect between the iron cores and enhance the stability. The second flexible balls and the second spherical grooves are arranged alternately, which can effectively strengthen the connection effect between the plug rods and enhance the stability.

[0011] In a preferred embodiment, the inner diameter of the first cavity is less than half of the outer diameter of the first flexible ball, which can strengthen the strength of the first flexible ball while ensuring its elastic deformation ability.

[0012] In a preferred embodiment, the inner diameter of the second cavity is less than half of the outer diameter of the second flexible ball, which can strengthen the strength of the second flexible ball while ensuring its elastic deformation ability.

[0013] In a preferred embodiment, the inner diameter of the third cavity is half of the outer diameter of the third flexible ball, which can strengthen the strength of the third flexible ball while ensuring its elastic deformation ability and enhance the connection effect between the insert bar and the framework.

[0014] In a preferred embodiment, the difference between the inner diameter of the through - groove and the outer diameter of the plug rod is greater than twice the outer diameter of the third flexible ball. When the plug rod is inserted into the through - groove and the third flexible ball is squeezed and deformed, the stability of the framework can be ensured.

[0015] The technical effects and advantages of the present invention:

[0016] 1. The present invention can perform multiple cooling and heat dissipation treatments on the transformer by providing the first liquid storage chamber, the second liquid storage chamber, the third liquid storage chamber, the fourth liquid storage chamber, the through groove, the insertion rod and the fifth liquid storage chamber, which can effectively enhance the cooling and heat dissipation effect of the transformer, keep the transformer temperature low, effectively reduce losses and ensure the normal operation of the transformer;

[0017] 2. The present invention can effectively strengthen the connection effect between the skeleton and the iron core and the connection effect between the iron cores by arranging the first flexible ball, the first spherical groove, the second flexible ball, the second spherical groove, the first cavity, the second cavity, the third flexible ball and the third cavity, thereby avoiding loosening, effectively enhancing the stability of the transformer, and facilitating and quick assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front cross-sectional view of the present invention as a whole.

[0019] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of point A in the middle.

[0020] Figure 3 For the present invention Figure 1 Enlarged schematic diagram of point B in the middle.

[0021] Figure 4 For the present invention Figure 1 Enlarged schematic diagram of point C in the middle.

[0022] Figure 5 It is the main view of the whole invention.

[0023] Figure 6 It is a front cross-sectional view of the iron core of the present invention.

[0024] Figure 7 It is a front cross-sectional view of the skeleton of the present invention.

[0025] The figures are marked as: 1 skeleton, 2 iron core, 3 first liquid storage cavity, 4 second liquid storage cavity, 5 third liquid storage cavity, 6 fourth liquid storage cavity, 7 through groove, 8 insertion rod, 9 fifth liquid storage cavity, 10 first flexible ball, 11 first spherical groove, 12 second flexible ball, 13 second spherical groove, 14 first cavity, 15 second cavity, 16 third flexible ball, 17 third cavity, 18 first sealing plug, 19 second sealing plug, 20 connecting plate, 21 pin. DETAILED DESCRIPTION

[0026] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repeated description will be omitted.

[0027] In addition, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the example embodiments of the present disclosure. However, those skilled in the art will realize that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, steps, etc. may be adopted. In other cases, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the present disclosure.

[0028] As Figure 1-7 shown, a high-frequency transformer with low loss includes a bobbin 1 and two iron cores 2. The two iron cores 2 are respectively sleeved on both outer sides of the bobbin 1. A first liquid storage cavity 3 is provided inside the bobbin 1. A second liquid storage cavity 4 is provided at the top of the first liquid storage cavity 3 inside the bobbin 1. A third liquid storage cavity 5 is provided at the bottom of the first liquid storage cavity 3 inside the bobbin 1. A fourth liquid storage cavity 6 is provided inside the iron core 2. A through groove 7 is formed at the center of the top of the bobbin 1. A plug 8 matching the through groove 7 is provided on the outer wall of the iron core 2. A fifth liquid storage cavity 9 is provided inside the plug 8, and the fifth liquid storage cavity 9 communicates with the fourth liquid storage cavity 6.

[0029] One side of the outer wall of the bobbin 1 is movably connected with a first sealing plug 18. The first sealing plug 18 extends into the second liquid storage cavity 4. The first sealing plug 18 can seal the second liquid storage cavity 4 to prevent the coolant from flowing out of the bobbin 1. By opening the first sealing plug 18, the coolant in the bobbin 1 can be discharged or coolant can be injected.

[0030] One side of the outer wall of the iron core 2 is movably connected with a second sealing plug 19. The second sealing plug 19 extends into the fourth liquid storage cavity 6. The second sealing plug 19 can seal the fourth liquid storage cavity 6 to prevent the coolant from flowing out of the iron core 2. By opening the second sealing plug 19, the coolant inside the iron core 2 can be discharged or coolant can be injected.

[0031] The iron core 2 and the insertion rod 8 are in an "E" - shaped structure. On both sides of the bottom of the skeleton 1, connecting plates 20 are provided on the outside of the iron core 2. A number of pins 21 are provided at the bottom of the connecting plates 20. The "E" - shaped structure facilitates the quick assembly of the iron core 2 and the skeleton 1. The connecting plate 20 supports the pins 21. The winding coil wound on the skeleton 1 is connected to the pins 21, and the pins 21 are used to install and connect the transformer.

[0032] The specific implementation method is as follows: When in use, by setting the first liquid storage cavity 3, the second liquid storage cavity 4, the third liquid storage cavity 5, the fourth liquid storage cavity 6, the through - slot 7, the insertion rod 8 and the fifth liquid storage cavity 9, coolant is injected into the second liquid storage cavity 4 and the fourth liquid storage cavity 6. The coolant in the second liquid storage cavity 4 flows to the first liquid storage cavity 3 and the third liquid storage cavity 5, which can connect the first liquid storage cavity 3, the second liquid storage cavity 4 and the third liquid storage cavity 5. The coolant in the fourth liquid storage cavity 6 flows to the fifth liquid storage cavity 9, which can fill the fourth liquid storage cavity 6 and the fifth liquid storage cavity 9. The first liquid storage cavity 3, the second liquid storage cavity 4 and the third liquid storage cavity 5 can cool and dissipate heat inside the skeleton 1. The fifth liquid storage cavity 9 can cool and dissipate heat on the inner side of the skeleton 1. The fourth liquid storage cavity 4 can cool and dissipate heat on the outside of the skeleton 1. Multiple cooling and heat - dissipation treatments can effectively enhance the cooling and heat - dissipation effect of the transformer. When the temperature of the transformer is not high, the loss can be effectively reduced, ensuring the normal operation of the transformer. This implementation method specifically solves the problems in the background technology that the existing high - frequency transformer has low heat - dissipation efficiency, high transformer temperature, which affects the normal operation of the transformer and has high loss.

[0033] As shown in the attached Figure 1 、attached Figure 4 and attached Figure 7 A low - loss high - frequency transformer as shown in the attached

[0034] also includes a number of first flexible balls 10 provided on one side of the outer wall of the iron core 2. A first spherical groove 11 matching the first flexible balls 10 is provided on the outer wall of the iron core 2. The first spherical groove 11 is provided on one side of the first flexible balls 10. One end of the outer wall of the insertion rod 8 is provided with a number of second flexible balls 12. A second spherical groove 13 matching the second flexible balls 12 is provided on the outer wall of the insertion rod 8. The second spherical groove 13 is provided on one side of the second flexible balls 12. A first cavity 14 is provided inside the first flexible balls 10. A second cavity 15 is provided inside the second flexible balls 12. A number of third flexible balls 16 are symmetrically provided on both sides of the inner wall of the through - slot 7. A third cavity 17 is provided inside the third flexible balls 16;

[0035] The inner diameter of the first cavity 14 is less than half of the outer diameter of the first flexible ball 10, which can strengthen the strength of the first flexible ball 10 while ensuring the elastic deformation ability of the first flexible ball 10;

[0036] The inner diameter of the second cavity 15 is less than half of the outer diameter of the second flexible ball 12, which can strengthen the strength of the second flexible ball 12 while ensuring the elastic deformation ability of the second flexible ball 12;

[0037] The inner diameter of the third cavity 17 is half of the outer diameter of the third flexible ball 16, which can strengthen the strength of the third flexible ball 16 while ensuring the elastic deformation ability of the third flexible ball 16, and strengthen the connection effect between the insert bar 8 and the skeleton 1;

[0038] The difference between the inner diameter of the through groove 7 and the outer diameter of the insert bar 8 is greater than twice the outer diameter of the third flexible ball 16, ensuring that the insert bar 8 is inserted into the through groove 7, and the third flexible ball 16 is squeezed and deformed, which can ensure the stability of the skeleton 1.

[0039] The specific implementation method is as follows: When in use, by setting the first flexible ball 10, the first spherical groove 11, the second flexible ball 12, the second spherical groove 13, the first cavity 14, the second cavity 15, the third flexible ball 16 and the third cavity 17, when the iron core 2 is sleeved outside the skeleton 1, the insert bar 8 is inserted into the through groove 7, and the insert bar 8 contacts the third flexible ball 16, which can squeeze and deform the third flexible ball 16. The third cavity 17 can strengthen the elastic deformation ability of the third flexible ball 16, and can effectively strengthen the connection effect between the skeleton 1 and the insert bar 8. When connecting the two iron cores 2 together, the first flexible ball 10 is inserted into the first spherical groove 11, and the second flexible ball 12 is inserted into the second spherical groove 12, which can assemble the two iron cores 2 together. The first cavity 14 can strengthen the elastic deformation ability of the first flexible ball 10, ensuring that the first flexible ball 10 can be directly inserted into the first spherical groove 11. After the first flexible ball 10 is inserted into the first spherical groove 11, the first cavity 14 rebounds to perform limiting to avoid loosening. The second cavity 15 can strengthen the elastic deformation ability of the second flexible ball 11, ensuring that the second flexible ball 12 can be directly inserted into the second spherical groove 13. After the second flexible ball 12 is inserted into the second spherical groove 13, the second cavity 15 rebounds to perform limiting to avoid loosening, which can effectively strengthen the stability of the transformer and is convenient and fast to assemble.

[0040] The working principle of the present invention:

[0041] Refer to the attached Figure 1-7 specification. By setting the first liquid storage cavity 3, the second liquid storage cavity 4, the third liquid storage cavity 5, the fourth liquid storage cavity 6, the through groove 7, the insert bar 8 and the fifth liquid storage cavity 9, multiple cooling and heat dissipation treatments can be carried out on the transformer, which can effectively strengthen the cooling and heat dissipation effect of the transformer. The temperature of the transformer is not high, which can effectively reduce losses and ensure the normal operation of the transformer;

[0042] Further, with reference to the attached drawings of the specification Figure 1 , attached Figure 4 and attached Figure 7 , by providing the first flexible ball 10, the first spherical groove 11, the second flexible ball 12, the second spherical groove 13, the first cavity 14, the second cavity 15, the third flexible ball 16 and the third cavity 17, the connection effect between the skeleton 1 and the iron core 2 and the connection effect between the iron cores 2 can be effectively strengthened, loosening can be avoided, the stability of the transformer can be effectively enhanced, and the assembly is convenient and fast.

[0043] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0044] Second: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0045] Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-frequency transformer with low losses, comprising a bobbin (1) and two iron cores (2), characterized in that: Two of the iron cores (2) are respectively sleeved on both outer sides of the skeleton (1). A first liquid storage cavity (3) is arranged inside the skeleton (1). A second liquid storage cavity (4) is arranged at the top of the first liquid storage cavity (3) inside the skeleton (1). A third liquid storage cavity (5) is arranged at the bottom of the first liquid storage cavity (3) inside the skeleton (1). A fourth liquid storage cavity (6) is arranged inside the iron core (2). A through groove (7) is formed at the center of the top of the skeleton (1). A plug rod (8) matching the through groove (7) is arranged on the outer wall of the iron core (2). A fifth liquid storage cavity (9) is arranged inside the plug rod (8). The fifth liquid storage cavity (9) communicates with the fourth liquid storage cavity (6). A plurality of first flexible balls (10) are arranged on one side of the outer wall of the iron core (2). A first spherical groove (11) matching the first flexible ball (10) is arranged on the outer wall of the iron core (2). The first spherical groove (11) is arranged on one side of the first flexible ball (10). A plurality of second flexible balls (12) are arranged at one end of the outer wall of the plug rod (8). A second spherical groove (13) matching the second flexible ball (12) is arranged on the outer wall of the plug rod (8). The second spherical groove (13) is arranged on one side of the second flexible ball (12). A first cavity (14) is arranged inside the first flexible ball (10). A second cavity (15) is arranged inside the second flexible ball (12). A plurality of third flexible balls (16) are symmetrically arranged on both sides of the inner wall of the through groove (7). A third cavity (17) is arranged inside the third flexible ball (16); A first sealing plug (18) with a movable connection is arranged on one side of the outer wall of the skeleton (1). The first sealing plug (18) extends into the second liquid storage cavity (4); A second sealing plug (19) with a movable connection is arranged on one side of the outer wall of the iron core (2). The second sealing plug (19) extends into the fourth liquid storage cavity (6).

2. The high-frequency transformer with low loss according to claim 1, wherein: The iron core (2) and the plug rod (8) are in an "E" - shaped structure. Connecting plates (20) are arranged on both sides of the bottom of the skeleton (1) outside the iron core (2). A plurality of pins (21) are arranged at the bottom of the connecting plates (20).

3. A high-frequency transformer with low loss according to claim 1, characterized in that: The first flexible balls (10) and the first spherical grooves (11) are arranged in a staggered manner. The second flexible balls (12) and the second spherical grooves (13) are arranged in a staggered manner.

4. A high-frequency transformer with low loss according to claim 1, characterized in that: The inner diameter of the first cavity (14) is less than half of the outer diameter of the first flexible ball (10).

5. A high-frequency transformer with low loss according to claim 1, characterized in that: The inner diameter of the second cavity (15) is less than half of the outer diameter of the second flexible ball (12).

6. The high-frequency transformer with low loss according to claim 1, wherein: The inner diameter of the third cavity (17) is half of the outer diameter of the third flexible ball (16).

7. A high-frequency transformer with low loss according to claim 1, characterized in that: The difference between the inner diameter of the through groove (7) and the outer diameter of the plug rod (8) is greater than twice the outer diameter of the third flexible ball (16).

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