CN208077716U - A kind of heat safe permanent magnet - Google Patents
A kind of heat safe permanent magnet Download PDFInfo
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- CN208077716U CN208077716U CN201820272287.7U CN201820272287U CN208077716U CN 208077716 U CN208077716 U CN 208077716U CN 201820272287 U CN201820272287 U CN 201820272287U CN 208077716 U CN208077716 U CN 208077716U
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Abstract
The utility model discloses a kind of heat safe permanent magnets, including magnetic core array, epoxy coating is fitted at the top of the magnetic core array, the bottom of the magnetic core array is fitted with lower epoxy coating, it is fitted with rare earth layer at the top of the upper epoxy coating, the first adhesive-layer is pasted at the top of the rare earth layer, the top of first adhesive-layer is equidistant to be equipped with heat-insulated stick.The heat safe permanent magnet, by the way that heat-sink shell, heat emission hole, the first adhesive-layer, heat-insulated stick, heat dissipation cavity, annular groove and magnet exciting coil is arranged, effectively the heat in permanent magnet can be distributed in time, to make permanent magnet be in lower state of temperature always, and by the way that rare earth layer, heat-insulated stick, alloy layer and magnet exciting coil is arranged, improve the high temperature resistant property of permanent magnet itself, the high temperature resistant property of the permanent magnet is set to reach 185 degree or more, and magnetism keeps normal, and demagnetization or demagnetization phenomenon will not occur.
Description
Technical field
The utility model is related to technology permanent magnet field, specially a kind of heat safe permanent magnet.
Background technology
Permanent magnet is the magnet that can keep it magnetic for a long time.Permanent magnet applications range is varied, including TV
Machine, loud speaker, Music centre loudspeaker, radio, Briefcase buckle, data line magnet ring, computer hard disc, cell phone vibrator etc..
Existing permanent magnet, since the physical property of its own determines that its operating ambient temperature is limited, general temperature
More than 180 degree, the magnetism of permanent magnet will subside, if continuing to heat up, the magnetism of permanent magnet can by irreversible disappearance, from
And lead to its eventual failure.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of heat safe permanent magnet, solve it is existing forever
The poor problem of magnet high temperature resistance.
(2) technical solution
To achieve the above object, the utility model provides the following technical solutions：A kind of heat safe permanent magnet, including magnetic core
Body is fitted with epoxy coating at the top of the magnetic core array, and the bottom of the magnetic core array is fitted with lower epoxy coating, the upper ring
It is fitted with rare earth layer at the top of oxygen coating, the first adhesive-layer, the top of first adhesive-layer are pasted at the top of the rare earth layer
Portion is equidistant to be equipped with heat-insulated stick, and the spacing between the heat-insulated stick of each two is 0.3-0.5 millimeters, and the top of the heat-insulated stick is viscous
The second adhesive-layer is posted, alloy layer is fitted at the top of second adhesive-layer.
Offering circular groove at the top of the magnetic core array, the inner cavity of the circular groove is provided with heat absorbing sheet, and the four of the heat absorbing sheet
Side is mounted on fixed footing, and side of the fixed footing far from heat absorbing sheet is connected on the inner wall of circular groove, the magnetic core array
Top offers heat dissipation cavity, and by heat dissipation cavity mutual conduction between each two circular groove, and the outside at the top of the magnetic core array opens up
There is annular groove, magnet exciting coil is provided in the annular groove, is socketed with fixing sleeve on the outside of the magnet exciting coil, and fixing sleeve
Both sides are both connected on the inner wall of annular groove.
The bottom of the lower epoxy coating is fitted with insulating layer, and the bottom of the insulating layer is fitted with heat dissipating layer.
Preferably, the bottom of the heat dissipating layer is fitted with resistance to compression layer, and scratch-resistant layer is fitted at the top of the alloy layer.
Preferably, the alloy layer is ferro-boron, and the rare earth layer is neodymium scandium layer.
Preferably, the lumen loading of the rare earth layer has heat-sink shell, the left and right sides of the heat-sink shell to offer heat dissipation
Hole.
Preferably, the circular groove is spaced substantially equidistant in a ring at the top of magnetic core array, and the quantity of circular groove is 6-9.
(3) advantageous effect
The utility model provides a kind of heat safe permanent magnet.Has following advantageous effect：
The heat safe permanent magnet, by be arranged heat-sink shell, heat emission hole, the first adhesive-layer, heat-insulated stick, the second adhesive-layer,
Alloy layer, circular groove, heat absorbing sheet, fixed footing, heat dissipation cavity, annular groove and magnet exciting coil, can effectively will be in permanent magnet
Heat distributes in time, to make permanent magnet be in lower state of temperature always, and by the way that rare earth layer, heat-insulated is arranged
Stick, alloy layer and magnet exciting coil improve the high temperature resistant property of permanent magnet itself, and the high temperature resistant property of the permanent magnet is made to reach
To 185 degree or more, and magnetic holding is normal, and demagnetization or demagnetization phenomenon will not occur, when the permanent magnet is in the condition of high temperature,
It is absorbed heat by heat absorbing sheet, then timely heat is conducted and distributed by heat dissipation cavity, it, can be with by magnet exciting coil
It magnetizes to magnetic core array, prevents its magnetism from reducing, by the heat-sink shell and heat emission hole in rare earth layer, can be generated with magnetic core array
Heat absorbed and distributed, to improve the heat dissipation performance of permanent magnet.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model magnetic core array structural schematic diagram；
Fig. 3 is the utility model rare earth layer structure sectional view.
In figure：1 magnetic core array, epoxy coating, 3 times epoxy coating, 4 rare earth layers, 41 heat-sink shells, 42 heat emission holes, 5 first on 2
Footing, 12 heat dissipation cavities, 13 rings are fixed in adhesive-layer, 6 heat-insulated sticks, 7 second adhesive-layers, 8 alloy layers, 9 circular grooves, 10 heat absorbing sheets, 11
Shape slot, 14 magnet exciting coils, 15 fixing sleeves, 16 insulating layers, 17 heat dissipating layers, 18 resistance to compression layers, 19 scratch-resistant layers.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1 to Figure 3, the utility model provides a kind of technical solution：A kind of heat safe permanent magnet, can be effective
The heat in permanent magnet is distributed in time, to make permanent magnet be in lower state of temperature always, and by setting
Rare earth layer 4, heat-insulated stick 6, alloy layer 8 and magnet exciting coil 14 are set, the high temperature resistant property of permanent magnet itself is improved, makes this forever
The high temperature resistant property of magnet reaches 185 degree or more, and magnetic holding is normal, and demagnetization or demagnetization phenomenon, including magnetic will not occur
The top of core 1, magnetic core array 1 is fitted with epoxy coating 2, and the bottom of magnetic core array 1 is fitted with lower epoxy coating 3, upper epoxy plating
The top of layer 2 is fitted with rare earth layer 4, and the lumen loading of rare earth layer 4 has heat-sink shell 41, the left and right sides of heat-sink shell 41 to offer
Heat emission hole 42 can be absorbed simultaneously by the heat-sink shell 41 and heat emission hole 42 in rare earth layer 4 with the heat that magnetic core array 1 generates
It distributes, to improve the heat dissipation performance of permanent magnet, rare earth layer 4 is neodymium scandium layer, and the top of rare earth layer 4 is pasted with the first adhesive-layer
5, the top of the first adhesive-layer 5 is equidistant to be equipped with heat-insulated stick 6, and the spacing between the heat-insulated stick of each two 6 is 0.3-0.5 millis
Rice, the top of heat-insulated stick 6 are pasted with the second adhesive-layer 7, and the top of the second adhesive-layer 7 is fitted with alloy layer 8, alloy layer 8
Top for ferro-boron, alloy layer 8 is fitted with scratch-resistant layer 19, and scratch-resistant layer 19 is arranged, improves the resistance to scraping of the permanent magnet
Can, prevent permanent magnet from being scratched.
The top of magnetic core array 1 offers circular groove 9, and circular groove 9 is spaced substantially equidistant in a ring at the top of magnetic core array 1, and circular groove 9
Quantity be 6-9, the inner cavity of circular groove 9 is provided with heat absorbing sheet 10, and four sides of heat absorbing sheet 10 are mounted on fixed footing 11, and solid
To determine side of the footing 11 far from heat absorbing sheet 10 to be connected on the inner wall of circular groove 9, the top of magnetic core array 1 offers heat dissipation cavity 12, and
Annular groove 13, annular groove 13 are offered by 12 mutual conduction of heat dissipation cavity, the outside at 1 top of magnetic core array between each two circular groove 9
It is inside provided with magnet exciting coil 14, the outside of magnet exciting coil 14 is socketed with fixing sleeve 15, and the both sides of fixing sleeve 15 are both connected to ring
On the inner wall of shape slot 13, when the permanent magnet is in the condition of high temperature, is absorbed heat by heat absorbing sheet 10, then pass through heat dissipation cavity 12
Timely heat is conducted and distributed, by magnet exciting coil 14, can be magnetized to magnetic core array 1, its magnetism drop is prevented
It is low.
The bottom of lower epoxy coating 3 is fitted with insulating layer 16, and the bottom of insulating layer 16 is fitted with heat dissipating layer 17, heat dissipating layer 17
Bottom be fitted with resistance to compression layer 18, setting resistance to compression layer 18 plays the role of measuring body.
In use, and by the way that rare earth layer 4, heat-insulated stick 6, alloy layer 8 and magnet exciting coil 14 is arranged, improving permanent magnetism
The high temperature resistant property of body itself makes the high temperature resistant property of the permanent magnet reach 185 degree or more, and magnetic holding is normal, will not
Demagnetization occurs or demagnetization phenomenon is absorbed heat by heat absorbing sheet 10 when the permanent magnet is in the condition of high temperature, then passes through heat dissipation
Heat is timely conducted and is distributed by chamber 12, by magnet exciting coil 14, can be magnetized to magnetic core array 1, be prevented its magnetic
Property reduce, by the heat-sink shell 41 and heat emission hole 42 in rare earth layer 4, can be absorbed and dissipated with the heat that magnetic core array 1 generates
Hair, to improve the heat dissipation performance of permanent magnet.
It should be noted that the electric elements occurred in this article are electrically connected with extraneous main controller and 220V alternating currents, and
And main controller can be the conventionally known equipment that computer etc. plays control, herein, such as first and second or the like pass
It is that term is only used to distinguish one entity or operation from another entity or operation, and not necessarily requires or secretly
Show that there are any actual relationship or orders between these entities or operation.Moreover, the terms "include", "comprise" or
Any other variant thereof is intended to cover non-exclusive inclusion so that including the processes of a series of elements, method, article or
Person's equipment includes not only those elements, but also includes other elements that are not explicitly listed, or further includes for this mistake
Journey, method, article or the intrinsic element of equipment.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of heat safe permanent magnet, including magnetic core array (1), it is characterised in that：It is fitted at the top of the magnetic core array (1)
The bottom of epoxy coating (2), the magnetic core array (1) is fitted with lower epoxy coating (3), the top patch of the upper epoxy coating (2)
Conjunction has rare earth layer (4), and the first adhesive-layer (5), the top of first adhesive-layer (5) are pasted at the top of the rare earth layer (4)
It is equidistant that heat-insulated stick (6) is installed, and the spacing between the heat-insulated stick of each two (6) is 0.3-0.5 millimeters, the heat-insulated stick (6)
Top be pasted with the second adhesive-layer (7), be fitted with alloy layer (8) at the top of second adhesive-layer (7)；
Circular groove (9) is offered at the top of the magnetic core array (1), the inner cavity of the circular groove (9) is provided with heat absorbing sheet (10), the suction
Four sides of backing (10) are mounted on fixed footing (11), and fixed side of the footing (11) far from heat absorbing sheet (10) is connected to circle
On the inner wall of slot (9), heat dissipation cavity (12) is offered at the top of the magnetic core array (1), and pass through heat dissipation between each two circular groove (9)
Chamber (12) mutual conduction, the outside at the top of the magnetic core array (1) offer annular groove (13), are provided in the annular groove (13)
Magnet exciting coil (14) is socketed with fixing sleeve (15) on the outside of the magnet exciting coil (14), and the both sides of fixing sleeve (15) are all connected with
On the inner wall of annular groove (13)；
The bottom of the lower epoxy coating (3) is fitted with insulating layer (16), and the bottom of the insulating layer (16) is fitted with heat dissipating layer
(17)。
2. a kind of heat safe permanent magnet according to claim 1, it is characterised in that：It pastes the bottom of the heat dissipating layer (17)
Conjunction has resistance to compression layer (18), and scratch-resistant layer (19) is fitted at the top of the alloy layer (8).
3. a kind of heat safe permanent magnet according to claim 1, it is characterised in that：The alloy layer (8) is ferro-boron
Alloy, the rare earth layer (4) are neodymium scandium layer.
4. a kind of heat safe permanent magnet according to claim 1, it is characterised in that：The inner cavity of the rare earth layer (4) is filled out
Filled with heat-sink shell (41), the left and right sides of the heat-sink shell (41) offers heat emission hole (42).
5. a kind of heat safe permanent magnet according to claim 1, it is characterised in that：The circular groove (9) is equidistant in a ring
From the top for being arranged in magnetic core array (1), and the quantity of circular groove (9) is 6-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820272287.7U CN208077716U (en) | 2018-02-26 | 2018-02-26 | A kind of heat safe permanent magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820272287.7U CN208077716U (en) | 2018-02-26 | 2018-02-26 | A kind of heat safe permanent magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208077716U true CN208077716U (en) | 2018-11-09 |
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ID=64038722
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820272287.7U Active CN208077716U (en) | 2018-02-26 | 2018-02-26 | A kind of heat safe permanent magnet |
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| CN (1) | CN208077716U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113096911A (en) * | 2021-04-09 | 2021-07-09 | 赣州嘉通新材料有限公司 | High-performance multilayer sintered neodymium-iron-boron permanent magnet and preparation method thereof |
-
2018
- 2018-02-26 CN CN201820272287.7U patent/CN208077716U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113096911A (en) * | 2021-04-09 | 2021-07-09 | 赣州嘉通新材料有限公司 | High-performance multilayer sintered neodymium-iron-boron permanent magnet and preparation method thereof |
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