CN219740652U - Magnetic yoke with built-in short circuit ring and induction furnace - Google Patents
Magnetic yoke with built-in short circuit ring and induction furnace Download PDFInfo
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- CN219740652U CN219740652U CN202321170122.6U CN202321170122U CN219740652U CN 219740652 U CN219740652 U CN 219740652U CN 202321170122 U CN202321170122 U CN 202321170122U CN 219740652 U CN219740652 U CN 219740652U
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- circuit ring
- yoke
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- 230000006698 induction Effects 0.000 title claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 67
- 238000001816 cooling Methods 0.000 claims description 19
- 239000000110 cooling liquid Substances 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 230000004907 flux Effects 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 8
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- General Induction Heating (AREA)
Abstract
The utility model relates to a magnetic yoke with a built-in short circuit ring and an induction furnace, which comprises a side plate, a magnetic conduction main body and a short circuit ring, wherein the magnetic conduction main body is arranged at the outer side of an induction coil, the side plate is arranged at the two opposite sides of the magnetic conduction main body, and the short circuit ring is arranged on the magnetic conduction main body; the induction furnace comprises induction coils, bus bars and common magnetic yokes, and further comprises built-in short-circuit ring magnetic yokes, wherein the built-in short-circuit ring magnetic yokes are arranged in two, and the built-in short-circuit ring magnetic yokes are arranged on the induction coils on two sides of the bus bars. The utility model has the effect of protecting the magnetic yokes at the two sides of the bus bar.
Description
Technical Field
The utility model relates to the technical field of induction furnaces, in particular to a magnetic yoke with a built-in short circuit ring and an induction furnace.
Background
An induction furnace is a heating device and has a wide application range including heat treatment, thermoforming, welding, metal smelting and the like. The working principle of the induction electric furnace is that an alternating magnetic field generated by energizing an induction coil acts on magnetically conductive furnace burden in the furnace to enable the furnace burden to self-heat and melt. Referring to fig. 1, an induction furnace includes an induction coil and a general yoke, two poles of the induction coil are provided with a bus bar for connecting a power source. The whole common magnetic yoke is in a cuboid shape and is uniformly distributed around the induction coil. When the induction electric furnace is electrified, a common magnetic yoke can be used for providing a passage for magnetic force lines generated outside the induction coil, so that the magnetic force lines are restrained from diffusing outwards, and the heating efficiency of the induction electric furnace is improved.
However, the magnetic yokes cannot be mounted at the bus bar, so that the magnetic flux leakage at the bus bar is increased, the magnetic yokes at the two sides of the bus bar are in a high-load running state for a long time, the problem of heating damage is easily caused, and the service life is short.
Disclosure of Invention
In order to provide protection for magnetic yokes on two sides of a busbar, the utility model provides a magnetic yoke with a built-in short circuit ring and an induction furnace.
The utility model provides a built-in short-circuit ring magnetic yoke, which adopts the following technical scheme:
the utility model provides a built-in short circuit ring yoke and induction furnace, includes curb plate, magnetic conduction main part and short circuit ring, the magnetic conduction main part sets up in the induction coil outside, the curb plate sets up the relative both sides of magnetic conduction main part, the short circuit ring is installed on the magnetic conduction main part.
Through adopting above-mentioned technical scheme, utilize the curb plate to play the supporting role to the magnetic conduction main part, reuse short circuit ring plays the shielding effect to the magnetic field near the magnetic conduction main part to the magnetic flux of restriction magnetic conduction main part of flowing through, avoid the magnetic conduction main part to try hard because the flow leads to generating heat and even influence the problem of life-span because of the too much magnetic flux, realize the protection to the magnetic conduction main part.
Preferably, the shorting ring is disposed between one of the side plates and the magnetically permeable body, and the shorting ring is adjacent to the busbar.
Through adopting above-mentioned technical scheme, utilize the short circuit ring of installing in magnetic conduction main part one side, mainly play the shielding effect in the magnetic field that is located magnetic conduction main part one side, make built-in short circuit ring yoke can shield to the magnetic leakage that is located magnetic conduction main part one side, ensure the magnetic flux that magnetic conduction main part handled when normally working as far as possible simultaneously.
Preferably, the magnetic conductive body comprises a first magnetic conductive body and a second magnetic conductive body, and the first magnetic conductive body is close to the busbar; the short circuit rings are arranged in two, wherein one short circuit ring is arranged between the side plate and the first magnetizer; the other short circuit ring is disposed between the first magnetizer and the second magnetizer adjacent to the side plate.
Through adopting above-mentioned technical scheme, utilize two short circuit rings to play stronger shielding effect to the magnetic leakage phenomenon that lies in first magnetizer one side, reduce the excessive phenomenon that generates heat of magnetic conduction main part, guarantee the magnetic flux of processing when magnetic conduction main part normally works as far as possible simultaneously, realize the protection to magnetic conduction main part.
Preferably, the short circuit ring is of a hollow structure, cooling liquid is filled in the short circuit ring, and the short circuit ring is connected with a water inlet nozzle and a water outlet nozzle.
Through adopting above-mentioned technical scheme, utilize hollow structure, cooling liquid and water inlet nozzle and the water outlet nozzle of short circuit ring to make the short circuit ring can establish the hydrologic cycle, realize the cooling effect to the short circuit ring, make the short circuit ring be difficult to because excessively intensify and lead to melting to guarantee the normal work of yoke.
Preferably, a cooling component is arranged on one side of the side plate away from the magnetic conduction main body.
By adopting the technical scheme, the cooling component is utilized to cool the side plate, because most of heat generated by the magnetic yoke is generated on the side plate in the normal operation of the side magnetic yoke; meanwhile, the temperature of the magnetic conduction main body can be indirectly reduced through the temperature reducing side plates, and the magnetic yoke is prevented from being overheated as much as possible.
Preferably, the cooling component comprises a water drum, cooling liquid is filled in the water drum, and the water drum is connected with a water inlet and a water outlet.
Through adopting above-mentioned technical scheme, utilize water drum, water inlet and the delivery port that contains cooling liquid to make the water drum can establish the hydrologic cycle to realize the cooling effect to the curb plate, guarantee the normal work of yoke.
Preferably, the magnetic conductive main body is arranged between the side plates through bolts and nuts, insulating pads are arranged between bolt heads of the bolts, the side plates and the nuts, and insulating sleeves are sleeved on screw rods of the bolts.
The utility model provides an induction furnace which adopts the following technical scheme that
The induction furnace comprises induction coils, a busbar, a common magnetic yoke, and the built-in short circuit ring magnetic yoke, wherein two built-in short circuit ring magnetic yokes are arranged, and the built-in short circuit ring magnetic yokes are arranged on the induction coils on two sides of the busbar.
Through adopting above-mentioned technical scheme, utilize built-in short circuit ring yoke to locate the magnetic leakage of busbar department and shield to make the magnetic conduction main part of built-in short circuit ring yoke be difficult to lead to excessively generating heat because of flowing through excessive magnetic flux, and then furthest guarantees the normal work of induction furnace.
In summary, the present utility model includes at least one of the following beneficial technical effects:
the short circuit ring is utilized to shield the magnetic leakage at the busbar, so that the magnetic flux flowing through the magnetic conductive main body is limited; the water circulation established in the short circuit ring is used for cooling the short circuit ring, so that the service life of the short circuit ring is prolonged, the working stability of the induction furnace is improved, and the service lives of yokes positioned on two sides of the busbar are prolonged.
Drawings
Fig. 1 is a schematic view of a structure of an induction furnace to which a general yoke is applied;
fig. 2 is a schematic structural view of a magnetic yoke with a built-in shorting ring in the present embodiment;
FIG. 3 is a schematic diagram of the structure of the shorting ring in the present embodiment;
fig. 4 is a schematic view of the structure of the induction furnace in the present embodiment.
Reference numerals: 1. an induction coil; 2. a busbar; 31. a first magnetizer; 32. a second magnetizer; 4. a side plate; 5. a water drum; 51. a water inlet; 52. a water outlet; 6. a shorting ring; 61. a water inlet nozzle; 62. a water outlet nozzle; 71. a bolt head; 72. a screw; 8. a nut; 91. an insulating pad; 92. an insulating sleeve; 10. a common magnetic yoke.
Description of the embodiments
The utility model is described in further detail below with reference to fig. 1-4.
Referring to fig. 1, an induction furnace includes an induction coil 1 and a general yoke 10, two poles of the induction coil 1 are provided with a bus bar 2, and the bus bar 2 is used to connect a power source. The general magnet yoke 10 is in a cuboid shape as a whole, and the general magnet yoke 10 is uniformly distributed around the induction coil 1. When the induction electric furnace is electrified, a common magnetic yoke 10 can provide a passage for magnetic force lines generated outside the induction coil 1, so that the magnetic force lines are restrained from diffusing outwards, and the induction heating efficiency is improved.
The embodiment of the utility model discloses a magnetic yoke with a built-in short circuit ring.
Referring to fig. 2, a magnetic yoke with a built-in shorting ring includes a magnetic conductive body, two side plates 4, and a shorting ring 6, where the magnetic conductive body is a yoke made of high-permeability silicon steel sheets. The side plates 4 are arranged on two opposite length direction side surfaces of the magnetic conduction main body, so that the magnetic conduction main body is supported, magnetic force lines are restrained conveniently, and heating efficiency of the induction coil 1 is improved. The short circuit ring 6 is arranged on the magnetic conductive main body and plays a role of shielding, so that the magnetic flux flowing through the magnetic conductive main body is reduced, and the problems of excessive heating and service life influence caused by overlarge magnetic flux flowing through the magnetic yoke are prevented.
Referring to fig. 2, the magnetic conductive body includes a first magnetic conductive body 31 and a second magnetic conductive body 32, where the first magnetic conductive body 31 and the second magnetic conductive body 32 are all in a cuboid shape, and a size of the first magnetic conductive body 31 perpendicular to the length direction of the side plate 4 is smaller than a size of the second magnetic conductive body 32 perpendicular to the length direction of the side plate 4. In this embodiment two shorting rings 6 are provided to enhance shielding and further limit the magnetic flux flowing through the yoke. Referring to fig. 3, the two shorting rings 6 are each annular, and the longitudinal surfaces of the two shorting rings 6 are each parallel to the longitudinal surfaces of the side plates 4. One of the shorting rings 6 is mounted between the first magnetic conductor 31 and the side plate 4, and the other shorting ring 6 is mounted between the first magnetic conductive body and the second magnetic conductive body. In this embodiment, the two short-circuit rings 6 are made of copper materials, so that the electromagnetic field shielding effect can be achieved, and magnetic lines of force at the magnetic leakage position are not easy to gather in the magnetic yoke near the magnetic leakage position, so that the magnetic yoke near the magnetic leakage position is protected.
In order to enable the two short-circuit rings 6 to work normally under the influence of magnetic force lines, the two short-circuit rings 6 are hollow structures, and cooling liquid such as pure water, distilled water or deionized water is filled in the two short-circuit rings 6. Two short-circuit rings 6 are provided with a water inlet nozzle 61 and a water outlet nozzle 62, and the water inlet nozzle 61 and the water outlet nozzle 62 are arranged on one side of the two short-circuit rings 6 away from the induction coil 1. The end of the water inlet nozzle 61 remote from the induction coil 1 is bent to be above the ground so as to facilitate water inlet. The water outlet nozzle 62 is arranged below the water inlet nozzle 61 close to the ground, and the end part of the water outlet nozzle 62 away from the induction coil 1 is bent to the lower side close to the ground so as to be convenient for water outlet. The water circulation in the short circuit ring 6 is established through the hollow structure of the short circuit ring 6, the water inlet nozzle 61, the water outlet nozzle 62 and the cooling liquid, so that the heat generated during the operation of the two short circuit rings 6 is reduced, the two short circuit rings 6 are not easy to melt due to overheat operation, and the normal operation of the whole magnetic yoke is protected.
Referring to fig. 2, the side plate 4 is mounted with the magnetic conductive main body through the structure of the bolt and the nut 8, and insulation pads 91 are arranged between the bolt head 71 of the stud and the side plate 4 and between the nut 8 and the side plate 4, and the bolt and the nut 72 are sleeved with insulation sleeves 92, so that the stud and the nut 8 are prevented from heating due to magnetic conduction as much as possible, and the connection between the side plate 4 and the magnetic conductive main body is ensured to the greatest extent.
In this embodiment, the side plate 4 is made of steel, and has a certain magnetic permeability, magnetic force lines generated during operation of the induction coil 1 can pass through the magnetic conductive main body and the side plate 4 at the same time, and heat generated by the side plate 4 can be far higher than heat generated by the magnetic conductive main body. In order to protect the side plate 4, a cooling component is further arranged on the magnetic yoke, and the cooling component is arranged on one side, away from the magnetic conductive main body, of the side plate 4. The cooling mode includes air cooling, water cooling or an integrated air cooling mode, and in this embodiment, water cooling is adopted. The cooling assembly comprises two water bags 5, and each water bag 5 is provided with a water inlet 51 and a water outlet 52. The water drum 5 is in a ring pipe shape, is arranged around the side plate 4 in a surrounding way, and the water inlet 51 and the water outlet 52 are arranged on the same side of the short circuit ring 6, which is provided with a water inlet nozzle 61 and a water outlet nozzle 62. The water drum 5 is filled with liquid for cooling, such as water, distilled water or deionized water, and water inlet and water outlet in the water drum 5 can be realized through the water inlet 51 and the water outlet 52, so that water circulation in the water drum 5 is realized. The heat generated by the side plates 4 can be reduced by utilizing the water drum 5 and the water circulation in the water drum 5, and the heat generated by the magnetic conduction main body is indirectly reduced, so that the normal work of the magnetic yoke is protected.
The implementation principle of the magnetic yoke with the built-in short circuit ring is as follows: the magnetic force lines at the magnetic leakage position are shielded through the two short-circuit rings 6, so that the magnetic flux flowing through the magnetic yoke is reduced, and meanwhile, the magnetic flux flowing through the magnetic conductive main body during normal operation is not weakened as much as possible; on the basis, water circulation is established through the hollow structure of the two short-circuit rings 6, cooling liquid, the water inlet nozzle 61 and the water outlet nozzle 62, and the cooling effect is realized on the two short-circuit rings 6, so that the two short-circuit rings 6 can shield magnetic leakage at the busbar 2 to the greatest extent, and the magnetic yoke at the magnetic leakage is protected; in addition, the cooling treatment is carried out on the magnetic yoke through the water drum 5, so that the magnetic yoke is not easily influenced by overheat work.
The embodiment of the utility model also discloses an induction furnace.
Referring to fig. 4, an induction furnace includes an induction coil 1, a bus bar 2 and a common magnetic yoke 10, wherein the magnetic yokes with built-in short-circuit rings are installed at both sides of the bus bar 2, and the two short-circuit rings 6 are close to the bus bar 2, which play a role in shielding magnetic leakage at the bus bar 2, so that the magnetic yokes at both sides of the bus bar 2 are not easy to flow through a plurality of magnetic lines. The common magnetic yoke 10 is provided with a plurality of magnetic yokes uniformly distributed on the outer side of the induction coil 1 except the busbar 2 and the built-in short circuit ring magnetic yoke.
The implementation principle of the induction furnace of the embodiment of the utility model is as follows: through the short circuit ring 6 in the built-in short circuit ring magnetic yoke arranged on two sides of the busbar 2, a certain shielding effect is achieved on the magnetic yoke to reduce magnetic force lines at the busbar 2, the working stability of the induction furnace is improved, and the service life is prolonged.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (8)
1. A built-in short circuit ring magnetic yoke is characterized in that: the induction coil comprises side plates (4), a magnetic conduction main body and a short circuit ring (6), wherein the magnetic conduction main body is arranged outside the induction coil (1), the side plates (4) are arranged on two opposite sides of the magnetic conduction main body, and the short circuit ring (6) is arranged on the magnetic conduction main body.
2. A built-in shorting ring yoke as recited in claim 1, wherein: the short circuit ring (6) is arranged between one of the side plates (4) and the magnetic conductive main body.
3. A built-in shorting ring yoke as recited in claim 1, wherein: the magnetic conduction main body comprises a first magnetic conduction body (31) and a second magnetic conduction body (32), two short circuit rings (6) are arranged, and one short circuit ring (6) is arranged between the side plate (4) and the first magnetic conduction body (31); the other short-circuit ring (6) is arranged between the first magnetic conductor (31) and the second magnetic conductor (32) close to the side plate (4).
4. A built-in shorting ring yoke as recited in claim 2 or 3, wherein: the short circuit ring (6) is of a hollow structure, cooling liquid is filled in the short circuit ring (6), and the short circuit ring (6) is connected with a water inlet nozzle (61) and a water outlet nozzle (62).
5. A built-in shorting ring yoke as recited in claim 1, wherein: and a cooling component is arranged on one side of the side plate (4) away from the magnetic conduction main body.
6. The built-in shorting ring yoke as recited in claim 5, wherein: the cooling assembly comprises a water drum (5), cooling liquid is filled in the water drum (5), and the water drum (5) is connected with a water inlet (51) and a water outlet (52).
7. A built-in shorting ring yoke as recited in claim 1, wherein: the magnetic conduction main body is installed between the side plates (4) through bolts and nuts (8), insulating pads (91) are arranged between bolt heads (71) of the bolts and the side plates (4) and between the nuts (8) and the side plates (4), and insulating sleeves (92) are sleeved on screw rods (72) of the bolts.
8. An induction furnace, includes induction coil (1), busbar (2) and ordinary yoke (10), its characterized in that: -further comprising one of said built-in shorting ring yokes as recited in any one of claims 1-7, said built-in shorting ring yokes being provided in two, and said built-in shorting ring yokes being mounted on said induction coil (1) on both sides of said busbar (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321170122.6U CN219740652U (en) | 2023-05-15 | 2023-05-15 | Magnetic yoke with built-in short circuit ring and induction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321170122.6U CN219740652U (en) | 2023-05-15 | 2023-05-15 | Magnetic yoke with built-in short circuit ring and induction furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219740652U true CN219740652U (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321170122.6U Active CN219740652U (en) | 2023-05-15 | 2023-05-15 | Magnetic yoke with built-in short circuit ring and induction furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219740652U (en) |
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2023
- 2023-05-15 CN CN202321170122.6U patent/CN219740652U/en active Active
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