CN212570659U - Low-temperature-rise magnetic core for power supply - Google Patents
Low-temperature-rise magnetic core for power supply Download PDFInfo
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- CN212570659U CN212570659U CN202021232629.6U CN202021232629U CN212570659U CN 212570659 U CN212570659 U CN 212570659U CN 202021232629 U CN202021232629 U CN 202021232629U CN 212570659 U CN212570659 U CN 212570659U
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- heat conduction
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- power supply
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Abstract
The utility model discloses a low temperature rises magnetic core for power, include the base, fix the side prop in the base both sides and fix the center pillar at the base middle part corresponds the center pillar groove that link up is seted up to the center pillar the inboard in set up on the base with center pillar groove intercommunication and vertically link up the tee bend heat conduction groove of base, correspond the tee bend heat conduction groove is in the guiding gutter has been seted up on the center pillar groove, the guiding gutter with the tee bend heat conduction groove has formed the water conservancy diversion runner. The utility model discloses a low temperature rises magnetic core for power sets up columniform center pillar, sets up the heat dissipation runner simultaneously on the base, and is less to the magnetic flux influence of magnetic core.
Description
Technical Field
The utility model relates to a magnetic core technical field especially relates to a low temperature rises magnetic core for power.
Background
Magnetic cores are sintered magnetic metal oxides composed of various iron oxide mixtures, and ferrite cores are used in the prior art in coils and transformers for various electronic devices.
For the magnetic core for the power supply, besides the characteristics of the material itself, the structure of the magnetic core itself also has a great influence on the performance of the manufactured power transformer, for example, if the heat dissipation capability of the magnetic core itself is poor, the temperature can be raised, the inductance of the magnetic core is affected, and the performance of the magnetic core is further reduced.
In the prior art, a heat-conducting notch is generally formed in a center pillar or a side pillar of a magnetic core, and the heat-conducting notch is directly designed into a rectangular side pillar and a center pillar (such as an EE-type magnetic core), so that the magnetic core has a large heat-dissipating end surface, which is convenient for air circulation. But the rectangular center pillar is inconvenient for winding and relatively large in leakage inductance.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the utility model is to provide a low temperature rise magnetic core for power sets up the columniform center pillar, sets up the heat dissipation runner simultaneously on the base, and is less to the magnetic flux influence of magnetic core.
The technical scheme of the utility model as follows:
a low-temperature-rise magnetic core for a power supply comprises a base, side columns fixed on two sides of the base and a center column fixed in the middle of the base, wherein a through center column groove is formed in the middle of the base corresponding to the center column, a three-way heat conduction groove communicated with the center column groove and longitudinally penetrating through the base is formed in the inner side of each side column on the base, a flow guide groove is formed in the center column groove corresponding to the three-way heat conduction groove, and a flow guide flow channel is formed by the flow guide groove and the three-way heat conduction groove.
Furthermore, the groove surfaces of the three-way heat conduction grooves are in arc transition.
Further, center pillar inslot wall bottom is provided with a plurality of joints that are by lower supreme leanin and agree with the piece, and wherein two the joint agrees with the setting that the piece corresponds respectively and is in the below of guiding gutter corresponds the joint agrees with the piece and is in the heat-conducting groove has been seted up to the lateral wall bottom of center pillar, and set up the joint that from top to bottom leanin in the heat-conducting groove and agree with the groove, the groove depth that the groove was agreed with to the joint is greater than the heat-conducting groove.
Furthermore, a heat conduction groove is formed in the heat conduction groove above the clamping connection wedge groove, and the groove depth of the heat conduction groove is smaller than that of the clamping connection wedge groove.
Further, the heat conduction groove is arranged in a penetrating mode.
The utility model provides a beneficial effect: the flow guide groove is arranged, and the flow guide channel and the three-way heat conduction groove form a flow guide flow channel, so that a certain heat dissipation gap is formed after the middle column is inserted, and heat can be conveniently led out along with the three-way heat conduction groove; the middle column can be reliably fixed by arranging the clamping wedge groove and the clamping wedge block; the width of the clamping wedge groove is slightly larger than that of the clamping wedge block, a certain heat dissipation gap can be reserved, and heat conduction in the axial direction of the center column is facilitated; when guaranteeing the joint reliability of center pillar, still can carry on spacingly to the joint wedge piece, axial slip when avoiding the center pillar joint. Meanwhile, the heat conducting groove and the flow guide groove form an air flow channel, so that heat conduction is facilitated.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a low temperature rise magnetic core for a power supply according to the present invention;
FIG. 2 is a schematic cross-sectional view of the center pillar groove of FIG. 1;
FIG. 3 is a schematic view of a portion of FIG. 1A;
fig. 4 is a schematic structural view of a modified version of the center pillar of fig. 1.
In the figure: 1-a base; 11-a middle column groove; 111-clamping wedge blocks; 12-a diversion trench; 13-three-way heat conducting groove; 2-side column; 3-a center pillar; 31-heat conducting grooves; 311-card wedge slot; 312-heat conduction groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Referring to fig. 1 and 2, a low temperature rise magnetic core for a power supply includes a base 1, side pillars 2 fixed on both sides of the base 1, and a center pillar 3 fixed in the middle of the base 1, wherein a through center pillar groove 11 is formed in the middle of the base 1 corresponding to the center pillar 3, a three-way heat conduction groove 13 communicated with the center pillar groove 11 and longitudinally penetrating through the base 1 is formed in the base 1 at the inner side of the side pillar 2, a groove surface of the three-way heat conduction groove 13 is in arc transition, a flow guide groove 12 is formed in the center pillar groove 11 corresponding to the three-way heat conduction groove 13, and the flow guide groove 12 and the three-way heat conduction groove 13 form a flow guide channel, so that the low temperature rise magnetic core has a certain heat dissipation gap after the center pillar 3 is inserted, and is convenient for guiding heat out along.
With further reference to fig. 3, in order to fix the middle column 3 in the middle column groove 11, a plurality of clamping wedge blocks 111 inclined from bottom to top are arranged at the bottom of the inner wall of the middle column groove 11, and two of the clamping wedge blocks 111 are respectively and correspondingly arranged below the flow guide groove 12, a heat conduction groove 31 is formed at the bottom of the side wall of the middle column 3 corresponding to the clamping wedge blocks 111, a clamping wedge groove 311 inclined from top to bottom is formed in the heat conduction groove 31, and the depth of the clamping wedge groove 311 is greater than that of the heat conduction groove 31. The clamping wedge slot 311 and the clamping wedge 111 are matched with each other, so that the center pillar 3 can be reliably fixed. The width of the clamping wedge slot 311 is slightly larger than that of the clamping wedge block 111, a certain heat dissipation gap can be reserved, and the axial heat conduction of the middle column 3 is facilitated.
In addition, in order to limit the clamping contact block 111, a heat conducting groove 312 is formed in the heat conducting groove 31 above the clamping contact groove 311, and the groove depth of the heat conducting groove 312 is smaller than that of the clamping contact groove 311. When guaranteeing the joint reliability of center pillar 3, still can keep spacing joint piece 111, axial slip when avoiding the joint of center pillar 3. Meanwhile, the heat conducting groove 312 and the flow guide groove 12 form an air flow channel, which facilitates heat conduction.
Referring to fig. 4, in order to further enhance the heat conduction capability of the center pillar 3, the heat conduction groove 312 is disposed through, which facilitates the formation of axial heat dissipation, and also facilitates the formation of a flow channel with the three-way heat conduction groove 13, which facilitates heat conduction.
In the present application, the structures and the connection relations that are not described in detail are all the prior art, and the structures and the principles thereof are known in the prior art and are not described herein again.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. A low temperature rise magnetic core for power supply, its characterized in that: the side column heat conduction device comprises a base, side columns fixed on two sides of the base and a center column fixed in the middle of the base, wherein a through center column groove is formed in the middle of the base corresponding to the center column, a three-way heat conduction groove communicated with the center column groove and longitudinally penetrating through the base is formed in the base, a diversion trench is formed in the center column groove corresponding to the three-way heat conduction groove, and a diversion flow channel is formed by the diversion trench and the three-way heat conduction groove.
2. The low temperature-rising magnetic core for a power supply according to claim 1, wherein: the groove surfaces of the three-way heat conduction grooves are in arc transition.
3. The low temperature-rising magnetic core for a power supply according to claim 1 or 2, characterized in that: the middle pillar inslot wall bottom is provided with a plurality of joints that are by lower supreme leanin and agree with the piece, and wherein two the joint agrees with the setting that the piece corresponds respectively and is in the below of guiding gutter corresponds the joint agrees with the piece and is in the heat-conducting groove has been seted up to the lateral wall bottom of middle pillar, and set up the joint that from top to bottom leanin in the heat-conducting groove and agree with the groove, the groove depth that the groove was agreed with to the joint is greater than the heat-conducting groove.
4. The low temperature-rising magnetic core for a power supply according to claim 3, wherein: and a heat conduction groove is formed above the clamping wedge groove and in the heat conduction groove, and the groove depth of the heat conduction groove is smaller than that of the clamping wedge groove.
5. The low temperature-rising magnetic core for a power supply according to claim 4, wherein: the heat conduction groove is arranged in a penetrating way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021232629.6U CN212570659U (en) | 2020-06-29 | 2020-06-29 | Low-temperature-rise magnetic core for power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021232629.6U CN212570659U (en) | 2020-06-29 | 2020-06-29 | Low-temperature-rise magnetic core for power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212570659U true CN212570659U (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021232629.6U Active CN212570659U (en) | 2020-06-29 | 2020-06-29 | Low-temperature-rise magnetic core for power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212570659U (en) |
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2020
- 2020-06-29 CN CN202021232629.6U patent/CN212570659U/en active Active
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