High-power high-frequency synchronous power transformer
By adopting the glue-filled sealing and aluminum design in the case in the high-frequency synchronous power transformer, the problems of low heat dissipation efficiency and poor sealing of the high-frequency transformer are solved, and more efficient heat dissipation and longer service life are achieved.
Patent Information
- Application Number
- CN202420948457.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-06
AI Technical Summary
The high-frequency transformers in medium and high-power synchronous rectifier high-frequency switching power supply have large heat generation and are difficult to dissipate heat. In the prior art, the air conduction between the magnetic core and the radiator reduces the heat dissipation efficiency, and the primary coil is sealed. Poor sex is prone to aging.
Using a sealing device with circular grooves in the shell, the magnetic core conductive assembly is in the groove, and the primary coil is on the outside of the conductive assembly. The sealing and thermal conductivity are improved by glue filling and sealing, and the connection between the aluminum rod and the shell is increased. Aluminum is used. Material shell and cover plate, combined with external refrigeration equipment for heat dissipation.
It effectively reduces the aging of the magnetic core conductive components, improves the heat dissipation and cooling effect and efficiency, enhances the thermal conductivity between the shell and the magnetic core, and improves the overall heat dissipation performance.
Smart Images
Figure CN222190412U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power transformers, in particular to a high-power high-frequency synchronous power transformer. Background Art
[0002] At present, the high-frequency transformers in medium and high-power synchronous rectification high-frequency switching power supplies generate a lot of heat due to their high power. Using multiple sets of high-frequency transformers will cause the problem of heat dissipation difficulties. Due to their high heat dissipation requirements, general transformers use water cooling and air cooling for heat dissipation. Therefore, additional water cooling or air cooling structures are required, which leads to a larger structural volume.
[0003] And generally the primary coil is exposed to the outside, with poor sealing and easy aging over time. For example, in the patent with the prior art authorization announcement number CN219163153U, the utility model is applicable to the transformer field and provides a high-frequency transformer for a large-power leakage inductance and small synchronous rectification power supply, including a radiator, a magnetic core wound around the primary coil is provided inside the radiator, a first metal tube and a second metal tube both passing through the magnetic core are provided inside the radiator, the second metal tube is embedded in the first metal tube, a first connecting row and a second connecting row are provided at both ends of the radiator respectively, a third connecting row is provided at one end of the first connecting row, a fourth connecting row is provided at one end of the second connecting row, both ends of the first metal tube are connected to the first connecting row and the fourth connecting row respectively, and both ends of the second metal tube are connected to the second connecting row and the third connecting row respectively.
[0004] However, during the use of the transformer, it was found that since heat was conducted between the magnetic core and the heat sink through the air, the heat dissipation and cooling effect and heat dissipation efficiency of the heat sink on the magnetic core were reduced. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a high-power high-frequency synchronous power transformer which improves the sealing effect, effectively reduces the aging after long-term use, improves the thermal conductivity, and improves the heat dissipation and cooling effect and heat dissipation and cooling efficiency.
[0006] The utility model discloses a high-power high-frequency synchronous power transformer, comprising a shell, a circular groove is arranged in the middle of the top of the shell; and also comprising a sealing device, a magnetic core conductive component, a primary coil, a first aluminum rod and a second aluminum rod, wherein the magnetic core conductive component is arranged inside the groove of the shell, the primary coil is arranged on the outer side wall of the magnetic core conductive component, the bottom end of the first aluminum rod and the bottom end of the second aluminum rod are both connected to the inner side wall of the shell, the top end of the first aluminum rod extends out of the top end of the shell, and the internal gap of the shell is sealed by glue pouring, the sealing device is installed on the top end of the shell, and the sealing device is used to seal the groove of the shell; by using the glue pouring to seal the internal gap of the shell, the sealing effect of the magnetic core conductive component is improved, and the aging of the magnetic core conductive component after long-term use is effectively reduced, and at the same time, due to the glue pouring and sealing, the thermal conductivity between the shell and the magnetic core conductive component is improved, and by directly contacting the shell with the refrigeration end of the external heat dissipation device, the heat dissipation and cooling effect and heat dissipation and cooling efficiency of the shell on the magnetic core conductive component are improved.
[0007] Preferably, the closing device includes a cover plate, a through hole and a notch, the cover plate is installed on the top of the shell, the through hole and the notch are both arranged on the cover plate, and the upper part of the first aluminum rod passes through the through hole; the cover plate is installed on the top of the shell so that the upper part of the first aluminum rod extends out of the shell through the through hole, thereby improving the closing and protective effect of the shell groove.
[0008] Preferably, it also includes multiple groups of threaded holes and multiple groups of mounting holes, the multiple groups of threaded holes are all arranged on the top of the shell, the multiple groups of mounting holes are all arranged on the cover plate, and the positions of the multiple groups of threaded holes correspond to the multiple groups of mounting holes; when the cover plate is installed on the top of the shell, the bolts are passed through the multiple groups of mounting holes and are screwed on the multiple groups of threaded holes, thereby improving the convenience of fixing between the shell and the cover plate.
[0009] Preferably, it also includes a wire core and an insulating sleeve, the wire core is connected and arranged on the magnetic core conductive component, the insulating sleeve is sleeved on the outer wall of the wire core, and the wire core and the insulating sleeve pass through the inside of the gap; by arranging the insulating sleeve, the insulation protection effect of the wire core surface is improved.
[0010] Preferably, the shell and the cover plate are both made of aluminum, which improves the thermal conductivity of the shell and the cover plate, and improves the heat dissipation and cooling effect of the shell and the cover plate on the magnetic core conductive components.
[0011] Preferably, the shell is integrally formed by die-casting, which improves the overall structural effect of the shell and improves the firmness of the shell.
[0012] Compared with the prior art, the utility model has the following beneficial effects: by sealing the internal gap of the shell with glue potting, the sealing effect of the magnetic core conductive component is improved, and the aging of the magnetic core conductive component after long-term use is effectively reduced. At the same time, due to the glue potting, the thermal conductivity between the shell and the magnetic core conductive component is improved. By directly contacting the shell with the cooling end of the external heat dissipation device, the heat dissipation and cooling effect and heat dissipation and cooling efficiency of the shell on the magnetic core conductive component are improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;
[0014] Figure 2 It is a schematic diagram of the axonometric explosion structure of the connection between the shell and the cover plate;
[0015] Figure 3 It is a schematic diagram of the isometric partial structure of the connection between the shell and the magnetic core conductive components;
[0016] Figure 4 It is a schematic diagram of the isometric partial structure of the connection between the magnetic core conductive component and the primary coil, etc.;
[0017] Figure 5 It is a schematic diagram of the isometric explosion structure of the first aluminum rod and the second aluminum rod.
[0018] Markings in the accompanying drawings: 1. Shell; 2. Magnetic core conductive component; 3. Primary coil; 4. First aluminum rod; 5. Second aluminum rod; 6. Cover plate; 7. Through hole; 8. Notch; 9. Threaded hole; 10. Mounting hole; 11. Wire core; 12. Insulating sleeve. DETAILED DESCRIPTION
[0019] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.
[0020] Example 1
[0021] like Figures 1 to 5As shown, a high-power high-frequency synchronous power transformer of the utility model comprises a shell 1, wherein a circular groove is arranged in the middle of the top of the shell 1; and further comprises a closing device, a magnetic core conductive component 2, a primary coil 3, a first aluminum rod 4 and a second aluminum rod 5, wherein the magnetic core conductive component 2 is arranged inside the groove of the shell 1, the primary coil 3 is arranged on the outer side wall of the magnetic core conductive component 2, the bottom end of the first aluminum rod 4 and the bottom end of the second aluminum rod 5 are both connected to the inner side wall of the shell 1, the top end of the first aluminum rod 4 extends out of the top end of the shell 1, and the internal gap of the shell 1 is sealed by glue pouring, and the closing device is installed at the top end of the shell 1, and the closing device is used to close the groove of the shell 1;
[0022] like Figure 2 As shown, the sealing device includes a cover plate 6, a through hole 7 and a notch 8. The cover plate 6 is mounted on the top of the housing 1. The through hole 7 and the notch 8 are both arranged on the cover plate 6. The upper part of the first aluminum rod 4 passes through the inside of the through hole 7.
[0023] In this embodiment, the internal gap of the shell 1 is sealed by glue potting, thereby improving the sealing effect of the magnetic core conductive component 2, effectively reducing the aging of the magnetic core conductive component 2 after long-term use. At the same time, due to the glue potting, the thermal conductivity between the shell 1 and the magnetic core conductive component 2 is improved, and the shell 1 is directly in contact with the cooling end of the external heat dissipation device, thereby improving the heat dissipation and cooling effect and heat dissipation and cooling efficiency of the shell 1 on the magnetic core conductive component 2.
[0024] Example 2
[0025] On the basis of Example 1, Figure 2 As shown, a high-power high-frequency synchronous power transformer of the utility model further includes a plurality of groups of threaded holes 9 and a plurality of groups of mounting holes 10, the plurality of groups of threaded holes 9 are all arranged at the top of the housing 1, the plurality of groups of mounting holes 10 are all arranged on the cover plate 6, and the positions of the plurality of groups of threaded holes 9 and the plurality of groups of mounting holes 10 correspond to each other;
[0026] like Figure 2 As shown, it also includes a wire core 11 and an insulating sleeve 12, the wire core 11 is connected and arranged on the magnetic core conductive component 2, the insulating sleeve 12 is sleeved on the outer wall of the wire core 11, and the wire core 11 and the insulating sleeve 12 pass through the inside of the gap 8;
[0027] like Figure 1 As shown, the housing 1 and the cover plate 6 are both made of aluminum;
[0028] like Figure 1 As shown, the housing 1 is integrally formed by die-casting;
[0029] In this embodiment, the cover plate 6 is installed on the top of the shell 1 so that the upper part of the first aluminum rod 4 extends out of the shell 1 through the through hole 7, thereby improving the sealing and protective effect of the groove of the shell 1. When the cover plate 6 is installed on the top of the shell 1, the bolts are passed through the multiple groups of mounting holes 10 and screwed on the multiple groups of threaded holes 9 to improve the convenience of fixing between the shell 1 and the cover plate 6.
[0030] The utility model discloses a high-power high-frequency synchronous power transformer. When working, the internal gap of a shell 1 is sealed by glue filling, and the shell 1 is directly in contact with the cooling end of an external heat dissipation device.
[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A high-power high-frequency synchronous power transformer, comprising a housing (1), wherein a circular groove is provided in the middle of the top of the housing (1); characterized in that: It also comprises a sealing device, a magnetic core conductive component (2), a primary coil (3), a first aluminum rod (4) and a second aluminum rod (5); the magnetic core conductive component (2) is arranged inside the groove of the shell (1); the primary coil (3) is arranged on the outer wall of the magnetic core conductive component (2); the bottom end of the first aluminum rod (4) and the bottom end of the second aluminum rod (5) are both connected to the inner wall of the shell (1); the top end of the first aluminum rod (4) extends outside the top end of the shell (1); the internal gap of the shell (1) is sealed by glue injection; the sealing device is installed at the top end of the shell (1); and the sealing device is used to seal the groove of the shell (1).
2. A high-power high-frequency synchronous power transformer as claimed in claim 1, characterized in that: The sealing device comprises a cover plate (6), a through hole (7) and a notch (8); the cover plate (6) is mounted on the top of the housing (1); the through hole (7) and the notch (8) are both arranged on the cover plate (6); and the upper part of the first aluminum rod (4) passes through the inside of the through hole (7).
3. A high-power high-frequency synchronous power transformer as claimed in claim 1 or 2, characterized in that: It also includes multiple groups of threaded holes (9) and multiple groups of mounting holes (10), wherein the multiple groups of threaded holes (9) are all arranged on the top of the shell (1), and the multiple groups of mounting holes (10) are all arranged on the cover plate (6), and the positions of the multiple groups of threaded holes (9) and the multiple groups of mounting holes (10) correspond to each other.
4. A high-power high-frequency synchronous power transformer as claimed in claim 1, characterized in that: It also comprises a wire core (11) and an insulating sleeve (12); the wire core (11) is arranged on the magnetic core conductive component (2) in a connected manner; the insulating sleeve (12) is sleeved on the outer wall of the wire core (11); and the wire core (11) and the insulating sleeve (12) pass through the inside of the notch (8).
5. A high-power high-frequency synchronous power transformer as claimed in claim 1 or 2, characterized in that: The shell (1) and the cover plate (6) are both made of aluminum.
6. A high-power high-frequency synchronous power transformer as claimed in claim 1, characterized in that: The housing (1) is integrally formed by die casting.