CN214068514U

CN214068514U - High-frequency transformer

Info

Publication number: CN214068514U
Application number: CN202023133929.1U
Authority: CN
Inventors: 刘国东
Original assignee: Cixi Kaijin Electric Appliance Co ltd
Current assignee: Cixi Kaijin Electric Appliance Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-08-27
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses a high-frequency transformer, including frame, sinle silk and coil, the sinle silk is located the frame inboard, sinle silk both ends respectively with frame inner wall fixed connection, frame and sinle silk constitute the structure of chinese character ri, the coil is twined on the sinle silk, the side of frame is equipped with the port, sinle silk inside is equipped with the passageway, the port has two and is located the both ends of sinle silk respectively, the passageway runs through the both ends of sinle silk, the both ends of passageway communicate with two ports respectively; in the working process, coil and sinle silk and frame produce the heat, because frame, sinle silk and coil soak in the cooling oil, the cooling oil gets into the passageway and with the contact of passageway inner wall, the passageway has increased the area of contact of sinle silk with the cooling oil, and has reduced the thickness of sinle silk, has improved the heat exchange efficiency between sinle silk and the cooling oil to improve the radiating efficiency of transformer, reduce the temperature of transformer, finally improve the work efficiency of transformer.

Description

High-frequency transformer

Technical Field

The utility model relates to a transformer technical field especially relates to a high frequency transformer.

Background

The transformer is with exporting again after reducing input voltage or to exporting again after input voltage risees, generally including mount and coil, the mount includes frame and sinle silk, the sinle silk is located the frame inboard, the both ends of sinle silk respectively with the inner wall fixed connection of frame, the mount is whole to be the day font, the coil winding is on the sinle silk, transformer among the prior art still includes the box usually, mount fixed mounting is inside the box, the airtight setting of box, the inside coolant oil that injects usually of box, a heat conduction for giving the box with mount and coil production. However, the whole fixed frame is of a solid structure, so that the contact area of the fixed frame and the cooling oil is small, the heat conduction efficiency is low, and the heat dissipation efficiency is low.

Disclosure of Invention

An object of the utility model is to provide a high frequency transformer to solve at least one problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a high-frequency transformer, includes frame, sinle silk and coil, the sinle silk is located the frame is inboard, sinle silk both ends respectively with frame inner wall fixed connection, the frame with the sinle silk constitutes day font structure, the coil winding is in on the sinle silk, the side of frame is equipped with the port, the inside passageway that is equipped with of sinle silk, the port has two and is located respectively the both ends of sinle silk, the passageway runs through the both ends of sinle silk, the both ends of passageway respectively with two the port intercommunication.

The utility model provides a high-frequency transformer, in the working process, coil and sinle silk and frame produce the heat, because frame, sinle silk and coil soak in the coolant oil, the coolant oil access passage and with the contact of passageway inner wall, the passageway has increased the area of contact of sinle silk with the coolant oil, and has reduced the thickness of sinle silk, improved the heat exchange efficiency between sinle silk and the coolant oil to improve the radiating efficiency of transformer, reduce the temperature of transformer, finally improve the work efficiency of transformer.

In a possible embodiment of the present invention, the port inner wall and the channel inner wall are connected to form a heat exchange surface, and the heat exchange surface is a quadrangular prism surface.

Through the utility model discloses an above-mentioned possible embodiment, the cross-section of sinle silk is the rectangle usually, and heat exchange surface is the quadrangular face, and heat exchange surface can keep parallel with the surface of sinle silk, makes the surface of sinle silk and the distance between the heat exchange surface keep invariable, and the thickness of sinle silk in different positions department is more even.

In a possible embodiment of the present invention, a groove is provided on the heat exchange surface.

Through the utility model discloses an above-mentioned possible embodiment, the recess can increase the surface area of heat exchange surface to area of contact between increase sinle silk and the cooling oil improves the heat exchange efficiency between cooling oil and the sinle silk.

The utility model discloses an in a possible embodiment, the cross section of heat exchange surface is the rectangle, the heat exchange surface includes the first heat conduction face of two relative settings, the heat exchange surface still includes the second heat conduction face of two relative settings, first heat conduction face with the second heat conduction face is perpendicular, the width of first heat conduction face is less than the width of second heat conduction face, be equipped with a plurality ofly on the first heat conduction face the recess, be equipped with one on the second heat conduction face the recess.

Through the utility model discloses an above-mentioned possible embodiment, because the width of second heat conduction face is greater than the width of first heat conduction face, therefore, the area of second heat conduction face is greater than the area of first heat conduction face, second heat conduction face is bigger with cooling oil area of contact, heat conduction efficiency is higher, therefore, can set up still less recess on the second heat conduction face, and the area of first heat conduction face is less, need set up more recesses, increase the area of contact between first heat conduction face and the cooling oil, thereby make the radiating efficiency of first heat conduction face and second heat conduction face keep balance.

In a possible embodiment of the present invention, a heat sink is inserted into the groove.

Through the utility model discloses an above-mentioned possible embodiment, the fin can further increase and the cooling oil between area of contact, the fin can adopt the higher material of coefficient of heat conductivity, for example copper etc., press from both sides the fin edge tightly in the recess, the most area of fin is soaked in the cooling oil, the heat of sinle silk can be conducted very fast and give the fin, the fin is rapidly with heat conduction for the cooling oil, the efficiency of heat dissipation is improved, and can reduce the width of recess, the recess width is less, the thickness of fin is less, can set up more fins.

The utility model discloses an in a possible embodiment, be equipped with the through-hole on the frame, the through-hole runs through the frame, the axis of through-hole with the axis of sinle silk is perpendicular.

Through the utility model discloses an above-mentioned possible embodiment, the mounting hole of frame can be regarded as to the through-hole to in using the fastener to fix the frame inside the box, the cooling hole can be regarded as to unnecessary through-hole, supplies the coolant oil to flow in, increases the area of contact between frame and the coolant oil, improves the heat exchange efficiency between frame and the coolant oil.

Drawings

Fig. 1 is a schematic structural diagram of a high-frequency transformer in an embodiment of the present invention;

FIG. 2 is a view in the direction A of FIG. 1;

FIG. 3 is a cross-sectional view taken at B-B of FIG. 2;

fig. 4 is a schematic view of a connection structure between the heat sink and the core according to an embodiment of the present invention.

Description of reference numerals:

110. a frame; 111. a port; 112. a through hole; 120. a wire core; 121. a channel; 130. a heat exchange surface; 131. a groove; 132. a first heat-conducting surface; 133. a second heat-conducting surface; 140. a heat sink; 200. and a coil.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Please refer to fig. 1 to 3, in an embodiment of the present invention, a high frequency transformer is provided, including a frame 110, a core 120 and a coil 200, the core 120 is located inside the frame 110, both ends of the core 120 are respectively fixedly connected to an inner wall of the frame 110, the frame 110 and the core 120 form a structure like a Chinese character 'ri', the coil 200 is wound on the core 120, a port 111 is disposed on a side of the frame 110, a channel 121 is disposed inside the core 120, the port 111 has two ends respectively located at both ends of the core 120, the channel 121 runs through both ends of the core 120, and both ends of the channel 121 are respectively communicated with the two ports 111.

The high-frequency transformer provided by the embodiment, in the working process, the coil 200, the wire core 120 and the frame 110 generate heat, because the frame 110, the wire core 120 and the coil 200 are soaked in the cooling oil, the cooling oil enters the channel 121 and contacts with the inner wall of the channel 121, the channel 121 increases the contact area of the wire core 120 and the cooling oil, the thickness of the wire core 120 is reduced, the heat exchange efficiency between the wire core 120 and the cooling oil is improved, the heat dissipation efficiency of the transformer is improved, the temperature of the transformer is reduced, and finally the working efficiency of the transformer is improved.

In a possible implementation manner of this embodiment, the inner wall of the port 111 and the inner wall of the channel 121 are connected to form a heat exchange surface 130, and the heat exchange surface 130 is a quadrangular prism surface.

With the above possible implementation of this embodiment, the cross-section of the core 120 is generally rectangular, the heat exchanging surface 130 is a quadrangular prism surface, and the heat exchanging surface 130 and the surface of the core 120 can be kept parallel, so that the distance between the outer surface of the core 120 and the heat exchanging surface 130 is kept constant, and the thickness of the core 120 at different positions is more uniform.

In a possible embodiment of this embodiment, the heat exchanging surface 130 is provided with grooves 131.

Through the above possible implementation manner of the present embodiment, the groove 131 can increase the surface area of the heat exchange surface 130, so as to increase the contact area between the core 120 and the cooling oil, and improve the heat exchange efficiency between the cooling oil and the core 120.

In a possible implementation manner of this embodiment, the cross section of the heat exchange surface 130 is rectangular, the heat exchange surface 130 includes two first heat conduction surfaces 132 disposed opposite to each other, the heat exchange surface 130 further includes two second heat conduction surfaces 133 disposed opposite to each other, the first heat conduction surfaces 132 are perpendicular to the second heat conduction surfaces 133, the width of the first heat conduction surfaces 132 is smaller than the width of the second heat conduction surfaces 133, the first heat conduction surfaces 132 are provided with a plurality of grooves 131, and the second heat conduction surfaces 133 are provided with one groove 131.

Through the above possible implementation manner of this embodiment, since the width of the second heat conduction surface 133 is greater than the width of the first heat conduction surface 132, the area of the second heat conduction surface 133 is greater than the area of the first heat conduction surface 132, the contact area of the second heat conduction surface 133 with the cooling oil is larger, and the heat conduction efficiency is higher, therefore, fewer grooves 131 may be disposed on the second heat conduction surface 133, and the area of the first heat conduction surface 132 is smaller, and more grooves 131 need to be disposed to increase the contact area between the first heat conduction surface 132 and the cooling oil, so that the heat dissipation efficiencies of the first heat conduction surface 132 and the second heat conduction surface 133 are kept balanced.

Referring to fig. 1 to 4, in a possible implementation manner of the present embodiment, a heat sink 140 is inserted into the groove 131.

Through the above possible implementation manner of the present embodiment, the contact area between the heat dissipation plate 140 and the cooling oil can be further increased, the heat dissipation plate 140 may be made of a material with a higher thermal conductivity, such as copper, to clamp the edge of the heat dissipation plate 140 in the groove 131, most area of the heat dissipation plate 140 is immersed in the cooling oil, the heat of the wire core 120 can be quickly conducted to the heat dissipation plate 140, the heat dissipation plate 140 quickly conducts the heat to the cooling oil, the heat dissipation efficiency is improved, the width of the groove 131 can be reduced, the smaller the width of the groove 131 is, the smaller the thickness of the heat dissipation plate 140 is, and more heat dissipation plates 140 can be disposed.

In a possible implementation manner of this embodiment, a through hole 112 is formed on the frame 110, the through hole 112 penetrates through the frame 110, and a central axis of the through hole 112 is perpendicular to a central axis of the core 120.

Through the above possible implementation manner of this embodiment, the through holes 112 may serve as mounting holes for the frame 110, so that the frame 110 is fixed inside the box body by using fasteners, and the redundant through holes 112 may serve as cooling holes for cooling oil to flow in, thereby increasing the contact area between the frame 110 and the cooling oil and improving the heat exchange efficiency between the frame 110 and the cooling oil.

The dashed lines in the figure are the outlines of the occluded structures.

The above embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications without inventive contribution to the embodiments of the present invention as needed after reading the present specification, but all the embodiments of the present invention are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a high-frequency transformer, includes frame (110), sinle silk (120) and coil (200), sinle silk (120) are located frame (110) are inboard, sinle silk (120) both ends respectively with frame (110) inner wall fixed connection, frame (110) with sinle silk (120) constitute day font structure, coil (200) winding is in on sinle silk (120), a serial communication port, the side of frame (110) is equipped with port (111), sinle silk (120) inside is equipped with passageway (121), port (111) have two and are located respectively the both ends of sinle silk (120), passageway (121) run through the both ends of sinle silk (120), the both ends of passageway (121) respectively with two port (111) intercommunication.

2. The high-frequency transformer according to claim 1, characterized in that the inner wall of the port (111) and the inner wall of the channel (121) are connected to form a heat exchange surface (130), and the heat exchange surface (130) is a quadrangular prism surface.

3. The high frequency transformer according to claim 2, characterized in that said heat exchanging surface (130) is provided with grooves (131).

4. The high frequency transformer according to claim 3, wherein the heat exchanging surface (130) has a rectangular cross section, the heat exchanging surface (130) comprises two first heat conducting surfaces (132) oppositely disposed, the heat exchanging surface (130) further comprises two second heat conducting surfaces (133) oppositely disposed, the first heat conducting surfaces (132) are perpendicular to the second heat conducting surfaces (133), the width of the first heat conducting surfaces (132) is smaller than that of the second heat conducting surfaces (133), the first heat conducting surfaces (132) are provided with a plurality of the grooves (131), and the second heat conducting surfaces (133) are provided with one of the grooves (131).

5. The high frequency transformer according to claim 4, characterized in that a heat sink (140) is inserted in the groove (131).

6. The high-frequency transformer according to claim 5, wherein a through hole (112) is formed in the frame (110), the through hole (112) penetrates through the frame (110), and a central axis of the through hole (112) is perpendicular to a central axis of the core (120).