CN215644031U - Air-cooled high-frequency transformer - Google Patents
Air-cooled high-frequency transformer Download PDFInfo
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- CN215644031U CN215644031U CN202121923060.2U CN202121923060U CN215644031U CN 215644031 U CN215644031 U CN 215644031U CN 202121923060 U CN202121923060 U CN 202121923060U CN 215644031 U CN215644031 U CN 215644031U
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Abstract
The utility model discloses an air-cooled high-frequency transformer, which comprises a framework body and a magnetic core assembly, wherein at least two primary coils and secondary coils which are distributed at intervals are wound on the magnetic core assembly; the framework body comprises a columnar heat conduction installation part, a through air channel is arranged on the heat conduction installation part along the direction of the central axis, and a turbulence part is arranged on the inner side surface of the air channel; the magnetic core assembly comprises a tubular magnetic core, and the magnetic core is sleeved on the heat conduction installation part. Above-mentioned scheme can solve current high frequency transformer and dispel the heat and the poor problem of radiating effect that leads to through transformer aluminum hull and heat conduction glue to transformer coil.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to an air-cooled high-frequency transformer.
Background
A transformer is a device for changing an ac voltage by using electromagnetic induction, and has main functions of voltage conversion, current conversion, impedance conversion, and the like, and is widely used in various industries and rapidly developed in the direction of a high power density power supply. The heat of the transformer is increased along with the increase of the power; therefore, the heat dissipation effect of the transformer device is more important.
The existing high-frequency transformer adopts a heat dissipation mode that an aluminum shell is nested with a coil, the heat of the transformer coil and an iron core is transferred to the aluminum shell of the transformer in a heat conduction glue heat transfer mode, then a heat dissipation bar is tightly attached to the aluminum shell of the transformer, and finally the heat of the aluminum shell is taken away by the heat dissipation bar; however, the structure of the existing high-frequency transformer for radiating the transformer coil through the transformer aluminum shell and the heat-conducting glue still has the problem of poor radiating effect.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an air-cooled high-frequency transformer, which aims to solve the problem of poor heat dissipation effect caused by the fact that a transformer coil is subjected to heat dissipation through a transformer aluminum shell and heat-conducting glue in the conventional high-frequency transformer.
In order to solve the problems, the utility model adopts the following technical scheme:
an air-cooled high-frequency transformer comprises a framework body and a magnetic core assembly, wherein at least two primary side coils and two secondary side coils which are distributed at intervals are wound on the magnetic core assembly; the framework body comprises a columnar heat conduction installation part, a through air channel is arranged on the heat conduction installation part along the direction of the central axis, and a turbulence part is arranged on the inner side surface of the air channel; the magnetic core assembly comprises a tubular magnetic core, and the magnetic core is sleeved on the heat conduction installation part.
Optionally, the spoiler is a rib spirally distributed along the inner side surface of the air duct.
Optionally, the air-cooled high-frequency transformer further comprises an aluminum heat dissipation housing; the aluminum heat dissipation shell is provided with a mounting groove and a baffle made of insulating heat conduction materials, the bottom surface of the mounting groove is provided with the heat conduction mounting part, and the baffle is arranged at a notch of the mounting groove and is detachably connected with the aluminum heat dissipation shell; the baffle with the aluminium system heat dissipation casing with the position that the both ends port of wind channel corresponds is provided with the opening respectively, is used for the intercommunication of wind channel and external world.
Optionally, a fan is arranged at the opening of the aluminum heat dissipation shell, and the fan is detachably connected with the aluminum heat dissipation shell; the fan may be used to create an airflow within the air duct.
Optionally, the opposite ends of the baffle extend to outside the aluminum heat dissipation shell, and form outer eaves portion respectively, just outer eaves portion is provided with the mounting hole.
Optionally, the outer side wall of the aluminum heat dissipation housing is provided with groove structures distributed in an array manner, and the groove structures form heat dissipation fin structures on the outer side wall of the aluminum heat dissipation housing.
The technical scheme adopted by the utility model can achieve the following beneficial effects:
according to the air-cooled high-frequency transformer disclosed by the utility model, the magnetic core is designed into a tubular structure, so that the magnetic core can be sleeved on the heat conduction installation part; meanwhile, the heat conducting installation part is provided with a through air duct along the axis direction, so that heat generated by the magnetic core assembly, the primary coil and the secondary coil can be dissipated not only through the shell, but also can be transferred to the air duct through the heat conducting installation part for heat dissipation; moreover, the inner side surface of the air duct is provided with the turbulence part, so that the heat exchange area of the air duct can be increased through the turbulence part, and airflow in the air duct forms turbulence, thereby being beneficial to improving the heat exchange efficiency and better enhancing the heat dissipation effect of the transformer; therefore, compared with the structure that the transformer coil is radiated only by the aluminum shell of the transformer and the heat-conducting glue, the transformer coil radiating structure can effectively improve the radiating effect of the transformer.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic cross-sectional view of an air-cooled high-frequency transformer disclosed in an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of an aluminum heat dissipation housing according to an embodiment of the present invention;
FIG. 3 is a schematic view of a snap structure disclosed in an embodiment of the present invention;
description of reference numerals:
100-aluminum radiating shell, 101-mounting groove, 102-opening of aluminum radiating shell, 103-radiating fin structure, 110-heat conducting mounting part, 111-turbulence part, 112-air duct, 113-fan, 121-first clamping pin, 122-second clamping pin, and,
200-magnetic core, 210-primary coil, 220-secondary coil,
300-baffle, 301-opening of baffle, 302-through hole, 310-side of ladder structure, 311-binding post, 320-shoulder of ladder structure, 321-mounting hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1 and 2, an embodiment of the present invention discloses an air-cooled high-frequency transformer, which includes a frame body and a magnetic core assembly, wherein the magnetic core assembly is wound with at least two primary windings 210 and two secondary windings 220 that are distributed at intervals; the framework is characterized in that the framework body comprises a columnar heat conduction installation part 110, a through air duct 112 is arranged on the heat conduction installation part 110 along the direction of a central axis, and a turbulence part 111 is arranged on the inner side surface of the air duct 112; the magnetic core assembly includes a tubular magnetic core 200, and the magnetic core 200 is sleeved on the heat conducting installation portion 110.
Wherein, the magnetic core 200 is designed into a tubular structure, so that the magnetic core 200 can be sleeved on the heat conducting installation part 110; meanwhile, the heat conducting mounting part 110 is provided with a through air duct 112 along the axial direction, so that heat generated by the magnetic core assembly, the primary coil 210 and the secondary coil 220 can be dissipated not only through the shell, but also transmitted to the air duct 112 through the heat conducting mounting part 110; moreover, the inner side surface of the air duct 112 is provided with the turbulence portion 111, so that the heat exchange area of the air duct 112 can be increased through the turbulence portion 111, and airflow in the air duct 112 forms turbulence, thereby being beneficial to improving the heat exchange efficiency and better enhancing the heat dissipation effect of the transformer.
Therefore, compared with the structure of the existing transformer which only utilizes the transformer aluminum shell and the heat conducting glue to radiate the transformer coil, the air duct 112 and the turbulent flow part 111 which are adopted by the air-cooled high-frequency transformer disclosed by the embodiment of the utility model can effectively improve the radiating effect of the transformer.
Specifically, the spoiler 111 is a rib spirally distributed along the inner side surface of the air duct 112, so that the spoiler 111 can play a role in spoiler and can smoothly ventilate the air duct 112; of course, as another design structure of the spoiler 111, the spoiler 111 may be an oblique rib structure extending from one end port of the air duct 112 to the other end port of the air duct 112.
It is easy to understand that, in order to protect the magnetic components of the air-cooled high-frequency transformer, the air-cooled high-frequency transformer disclosed in the embodiment of the present invention may further include an aluminum heat dissipation casing 100, so that the aluminum heat dissipation casing 100 not only plays a role in mounting and bearing the skeleton body, but also may cover the magnetic core component to play a role in safety protection.
As shown in fig. 1, an aluminum heat dissipation housing 100 is provided with a mounting groove 101 and a baffle 300 made of an insulating and heat conducting material (such as a high heat conducting engineering plastic material, a high heat conducting epoxy resin material, a high heat conducting polyimide material, etc.), the bottom surface of the mounting groove 101 is provided with a heat conducting mounting portion 110, and the baffle 300 is disposed in a notch of the mounting groove 101 and detachably connected to the aluminum heat dissipation housing 100; therefore, a relatively closed installation space can be formed by the installation groove 101 and the baffle 300, foreign matters and the like are prevented from entering the installation groove 101, and the components arranged in the installation groove 101 can be protected; meanwhile, the baffle 300 which is detachably connected is convenient to disassemble and assemble so as to overhaul and replace the baffle 300 arranged in the mounting groove 101, and the baffle 300 made of the insulating heat conduction material can also play a role in heat dissipation.
In order to ensure that the air flow in the air duct 112 can smoothly flow through for heat dissipation, as shown in fig. 2, an opening 102 is disposed at a position of the aluminum heat dissipation housing 100 corresponding to one end port of the air duct 112, and openings 301 are disposed at positions of the baffle 300 corresponding to the other end port of the air duct 112, so as to ensure communication between the air duct 112 and the outside, which is beneficial to smooth circulation of the heat exchange air flow.
Generally, a fan 113 may be provided at the opening 102 of the aluminum heat dissipation case 100, so that a circulating cool wind may be generated in the wind tunnel 112 by a rotational operation of the fan 113 to dissipate heat transferred to the heat conductive mounting part 110; the fan 113 is detachably connected to the aluminum heat dissipation housing 100, so that the fan 113 and the aluminum heat dissipation housing 100 can be conveniently detached and assembled, and corresponding cleaning and maintenance operations can be performed.
Meanwhile, the heat conducting installation part 110 and the aluminum heat dissipation shell 100 are integrated into a structural member, so that the structural strength between the aluminum heat dissipation shell 100 and the heat conducting installation part 110 is ensured, and the die sinking manufacturing is facilitated; of course, machine tool machining may also be adopted in the actual machining and manufacturing process, and the embodiment of the present invention does not limit the machining and manufacturing manner thereof.
As a detachable connection manner of the aluminum heat dissipation housing 100 and the baffle 300, as shown in fig. 2, a threaded hole is formed in the end surface of the aluminum heat dissipation housing 100 at the notch of the mounting groove 101, and a through hole is formed in the position of the baffle 300 corresponding to the threaded hole, so that a fastening bolt or a screw can pass through the through hole to be tightly matched with the threaded hole through a threaded structure, and the detachable connection of the baffle 300 and the aluminum heat dissipation housing 100 is realized.
Of course, as other detachable connection manners, the aluminum heat dissipation housing 100 may also be detachably connected to the baffle 300 through a snap structure; as shown in fig. 3, the end surface of the aluminum heat dissipation casing 100 at the notch of the mounting groove 101 is provided with a first clamping leg 121 and a second clamping leg 122 which are opposite to each other, the free end of the first clamping leg 121 and the free end of the second clamping leg 122 are opposite to each other and provided with a convex portion, and the position of the baffle 300 corresponding to the clamping legs is provided with a through hole 302.
When the aluminum heat dissipation shell 100 needs to be buckled and matched, the first clamping pin 121 and the second clamping pin 122 are elastically extruded to smoothly penetrate through the through hole 302 of the baffle 300, after the first clamping pin 121 and the second clamping pin 122 penetrate through the through hole 302, the first clamping pin 121 and the second clamping pin 122 are opened, and then convex parts arranged at the free end of the first clamping pin 121 and the free end of the second clamping pin 122 abut against the end surface of the through hole 302, so that the aluminum heat dissipation shell 100 and the baffle 300 are buckled and fixed; during disassembly, the buckle can be released by squeezing the free ends of the first clamping pin 121 and the second clamping pin 122, so that the aluminum heat dissipation shell 100 and the baffle 300 are loosened, and the disassembly operation is facilitated.
In the embodiment of the present invention, as shown in fig. 1, two opposite ends of the disclosed baffle 300 extend to the outside of the aluminum heat dissipation housing 100, and form outer eaves respectively, and the outer eaves are provided with mounting holes 321, so that fasteners such as bolts or screws can be inserted through the mounting holes 321 of the outer eaves for mounting and fixing the aluminum heat dissipation housing 100.
Preferably, the outer eaves of the two opposite ends of the baffle 300 are bent downwards vertically and horizontally to form a stepped structure, so that the opening 301 of the baffle 300 has a certain height, and further, the opening 301 of the baffle 300 is prevented from being blocked and closed by a mounting surface when the baffle 300 is fixedly mounted and the circulation and heat dissipation of the airflow in the air duct 112 are prevented from being influenced; the mounting hole 321 is arranged on the shoulder surface 320 of the stepped structure, so that the mounting and fixing operations are convenient; meanwhile, the side 310 of the stepped structure is provided with a terminal 311, so that the input and output are convenient to be connected with the wiring of the corresponding coil through the terminal 311.
It is easy to understand that the outer side wall of the aluminum heat dissipation housing 100 is provided with the groove structures distributed in an array, and the groove structures form the heat dissipation fin structures 103 on the outer side wall of the aluminum heat dissipation housing 100, so that the surface area of the aluminum heat dissipation housing 100 is increased, and the heat dissipation effect of the aluminum heat dissipation housing 100 is improved; of course, the top surface of the aluminum heat dissipation housing 100 can also be provided with the heat dissipation fin structure 103 to better enhance the heat dissipation effect.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. An air-cooled high-frequency transformer comprises a framework body and a magnetic core assembly, wherein at least two primary side coils and two secondary side coils which are distributed at intervals are wound on the magnetic core assembly; the framework body comprises a columnar heat conduction installation part, a through air channel is arranged on the heat conduction installation part along the direction of a central axis, and a turbulence part is arranged on the inner side surface of the air channel; the magnetic core assembly comprises a tubular magnetic core, and the magnetic core is sleeved on the heat conduction installation part.
2. The air-cooled high-frequency transformer of claim 1, wherein the spoiler is a rib spirally distributed along an inner side surface of the air duct.
3. The air-cooled high-frequency transformer according to claim 1 or 2, further comprising an aluminum heat-dissipating case; the aluminum heat dissipation shell is provided with a mounting groove and a baffle made of insulating heat conduction materials, the bottom surface of the mounting groove is provided with the heat conduction mounting part, and the baffle is arranged at a notch of the mounting groove and is detachably connected with the aluminum heat dissipation shell; the baffle with the aluminium system heat dissipation casing with the position that the both ends port of wind channel corresponds is provided with the opening respectively, is used for the intercommunication of wind channel and external world.
4. The air-cooled high-frequency transformer according to claim 3, wherein a fan is disposed at the opening of the aluminum heat dissipation case, and the fan is detachably connected to the aluminum heat dissipation case; the fan may be used to create an airflow within the air duct.
5. The air-cooled high-frequency transformer according to claim 3, wherein opposite ends of the baffle extend out of the aluminum heat dissipation case and respectively form outer eaves, and the outer eaves are provided with mounting holes.
6. The air-cooled high-frequency transformer of claim 5, wherein the outer side wall of the aluminum heat dissipation housing is provided with a groove structure distributed in an array, and the groove structure forms a heat dissipation fin structure on the outer side wall of the aluminum heat dissipation housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121923060.2U CN215644031U (en) | 2021-08-17 | 2021-08-17 | Air-cooled high-frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121923060.2U CN215644031U (en) | 2021-08-17 | 2021-08-17 | Air-cooled high-frequency transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215644031U true CN215644031U (en) | 2022-01-25 |
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ID=79898643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121923060.2U Active CN215644031U (en) | 2021-08-17 | 2021-08-17 | Air-cooled high-frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215644031U (en) |
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2021
- 2021-08-17 CN CN202121923060.2U patent/CN215644031U/en active Active
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