CN206293279U - Commutation inductance and the intermediate frequency power supply equipment containing the commutation inductance - Google Patents
Commutation inductance and the intermediate frequency power supply equipment containing the commutation inductance Download PDFInfo
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- CN206293279U CN206293279U CN201621319632.5U CN201621319632U CN206293279U CN 206293279 U CN206293279 U CN 206293279U CN 201621319632 U CN201621319632 U CN 201621319632U CN 206293279 U CN206293279 U CN 206293279U
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Abstract
The utility model discloses a kind of commutation inductance and the intermediate frequency power supply equipment containing the commutation inductance; including inductance coil and conductive electrode plate; the outside of inductance coil is coated with containment vessel; water-cooling channel is provided with conductive coil in inductance coil, the two ends of conductive coil are provided with the water inlet pipe and outlet pipe that are connected with water-cooling channel；The resistance size of conductive coil side wall is proportionate settings apart from inductance coil axis with it apart from size, reduces the energy loss caused by electric current ring-around and kelvin effect；Compared with prior art, water-cooling channel is set by the conductive coil of composition inductance coil so that the heat that whole commutation inductance is produced can be excluded in time, it is to avoid commutation inductance is burst due to overheat；By the wall thickness for adaptively setting conductive coil so that the electric energy loss of whole conductive coil is effectively reduced, and reduces the generation of heat.
Description
Technical field
The utility model is related to intermediate frequency power supply engineering device technique field, more specifically, it relates to a kind of commutation inductance and contain
There is the intermediate frequency power supply equipment of the commutation inductance.
Background technology
Intermediate frequency power supply is a kind of static frequency-conversion device, three phase worker power can be transformed into single phase poaer supply.In intermediate frequency power supply
During unloaded or underloading, commutation inductance introduces electric current, makes electric capacity commutation fully, while protection circuit can be played a part of.
Commutation inductance of the prior art, can produce magnetic field when being powered due to inductance coil, according to left hand rule, live wire
Circle will be acted in magnetic field by electromagnetic force, and size of current and direction in the size and Orientation of the electromagnetic force and coil
It is relevant.Under specific circumstances（Such as situations such as short circuit）, inductance coil is mutually exclusive in the presence of electromagnetic force, existing along with arcing
As, inductance coil explosion is caused in a short time, cause the generation of security incident.Regarding to the issue above, patent announcement number is
A kind of Chinese patent of CN203966796U, it is proposed that intermediate frequency power supply cast-type inductance.Including air switch connecting copper bar, inductor wire
Circle, controllable silicon connecting copper bar and the epoxy resin for pouring into a mould, the epoxy resin are filled in the turn-to-turn of inductance coil, and air switch connects
Connect copper bar and controllable silicon connecting copper bar is connected with inductance coil respectively, air switch connecting copper bar is used to connect air switch, and power supply is guided to
Power supply is guided to rectification thyristor by inductance coil, controllable silicon connecting copper bar, and on the one hand poured with epoxy resin material fills inductance
Turn-to-turn, it is ensured that coil turn-to-turn not arcing, is on the other hand looped around around coil, improves the class of insulation.
But found in practice, because inductance coil has resistance in itself, electricity will be produced when electric current flows through coil
Fuel factor, i.e. Q=U2t/R=I2Rt.Inductance coil is embedded in epoxy resin and is unfavorable for the exclusion of above-mentioned heat, when using
With the rising of temperature, it will cause the thawing of inductance coil to deform and even burst.In the intermediate frequency that intermediate frequency furnace is used
In power supply, because current value is huge, above mentioned problem is fairly obvious.Again, due to the ring-around and kelvin effect of electric current, cause
Electric current in energized inductance coil is distributed in surface of the inductance coil near axial line side mostly, and resistance is larger, energy loss
It is larger.
Utility model content
For problem present in practice, the purpose of this utility model is to provide one kind to provide water-cooled cooling
Effect ensures that electric energy loss is smaller again simultaneously, and mechanical strength is big when short-circuit, the not easy-to-draw scattered commutation inductance of inductance coil, purpose two
It is to propose a kind of intermediate frequency power supply equipment containing above-mentioned commutation inductance, concrete scheme is as follows：
A kind of commutation inductance, including by the inductance coil of conductive coil coiling side by side, and located at inductance coil end
The conductive electrode plate in portion, the outside of the inductance coil is coated with a protection for preventing inductance coil from being burst due to electric repulsion
Shell, the conductive coil along its length in it is hollow set formed a water-cooling channel, the conductive coil two ends one into
Type is provided with the water inlet pipe and outlet pipe being connected with the water-cooling channel；The resistance size of conductive coil side wall with
It is proportionate setting apart from inductance coil axis apart from size.
Above-mentioned technical proposal, conductive coil can produce heat when being powered, by setting water-cooling channel, it is possible to use water-cooled
In passage water is by heat absorption and excludes, it is to avoid inductance coil burns because temperature is too high；Also, because electric current is passing through
Can there is ring-around, i.e. electric current during the conductive coil of annular always big near the side where inductance coil axis, and it is remote
Side from inductance coil axis is small, by according to the change regulation of the distance between conductive coil each several part and inductance coil axis
The resistance distribution of conductive coil various pieces so that electric current passes through the electric energy consumed during conductive coil（Q= I²Rt）Compared with
It is small, the heat reduction of generation.Thus, by the heat that excludes in time produced by inductance coil and inductance coil heat is reduced
Produce, work along both lines, efficiently avoid commutation inductance and security incident occurs because temperature is too high.
Further, the thickness of conductive coil side wall is gradually reduced along its direction away from inductance coil axis.
By above-mentioned technical proposal so that conductive coil is maximum apart from the sidewall thickness of inductance coil axis side,
Corresponding resistance value is minimum.When electric current passes through conductive coil, due to the effect of ring-around, current convergence is leaned in conductive coil
In the side wall of nearly inductance coil axis side, because the partial ohmic value is minimum, thus electric current by conductive coil when disappear
The electric energy of consumption is minimum, and the heat of generation is minimum.
Further, it is provided with for reducing resistance near the axis side of inductance coil on the side wall of the conductive coil
The conductive material layer of resistance.
By above-mentioned technical proposal, the resistance for effectively reducing conductive coil near inductance coil axis side side wall is big
It is small, electric energy loss during so as to reducing electric current by conductive coil, and thus reduce the generation of heat.
Further, the conductive coil is along the rectangular setting of cross sectional shape perpendicular to its length direction, and conductor wire
Sidewall thickness thickness more than remaining side wall of the circle near inductance coil axis.
Further, the conductive coil, conductive electrode plate and water inlet pipe, outlet pipe are made of copper.
Further, installing plate is fixedly installed on the containment vessel, mounting hole is offered on the installing plate.
By above-mentioned technical proposal so that whole commutation inductance is installed and is quite convenient to.
Further, the binding for preventing the two to be located remotely from each other motion is connected between two neighboring conductive coil
Part.
By setting such scheme so that be difficult to burst separation, the stabilization of enhancing commutation inductance work between conductive coil
Property.
The utility model also provides a kind of intermediate frequency power supply equipment, including commutation system and inversion system, is also changed including above-mentioned
Phase inductance, wherein, the conductive electrode plate of the commutation inductance is electrically connected with the inversion system.
Because converting commutating current is very huge in intermediate frequency power supply, by above-mentioned technical proposal, intermediate frequency power supply work can be improved
Stability and security, reducing energy consumption.
Compared with prior art, the beneficial effects of the utility model are as follows：
（1）By the wall thickness for adaptively setting conductive coil so that the electric energy loss of whole conductive coil is by effectively
Reduce, reduce the generation of heat；
（2）By setting containment vessel and bundled piece, inductance coil can be avoided from being burst in the presence of electric repulsion,
Improve the security of commutation inductance；
（3）Water-cooling channel is set by the conductive coil of composition inductance coil so that what whole commutation inductance was produced
Heat can be excluded in time, it is to avoid commutation inductance is burst due to overheat.
Brief description of the drawings
Fig. 1 is the overall schematic of the utility model commutation inductance embodiment one；
Fig. 2 is the partial sectional view of commutation inductance；
Fig. 3 is the sectional view in Fig. 1 along line A-A；
Fig. 4 is the generalized section of the utility model commutation inductance embodiment two；
Fig. 5 is the close-up schematic view in A portions in Fig. 4.
Accompanying drawing mark：1st, commutation inductance；2nd, conductive coil；3rd, inductance coil；4th, conductive electrode plate；5th, containment vessel；6th, ring
Oxygen tree fat；7th, water-cooling channel；8th, water inlet pipe；9th, outlet pipe；10th, conductive material layer；11st, mounting hole；12nd, bundled piece.
Specific embodiment
With reference to embodiment and figure, the utility model is described in further detail, but embodiment party of the present utility model
Formula is not limited only to this.
Embodiment one
As depicted in figs. 1 and 2, a kind of commutation inductance 1, including by the inductance coil 3 of the coiling side by side of conductive coil 2,
And located at the conductive electrode plate 4 of the end of inductance coil 3, the outside of inductance coil 3 is coated with one prevents inductance coil 3 due to electricity
Repulsion and the containment vessel 5 that bursts, the containment vessel 5 are poured by epoxy resin 6 and formed, and whole commutating resistance is in cylindrical.
Conductive coil 2 along its length in it is hollow set formed a water-cooling channel 7, conductive coil 2 two ends one into
Type is provided with the water inlet pipe 8 and outlet pipe 9 being connected with water-cooling channel 7, and water inlet pipe 8 and outlet pipe 9 are respectively used to and outside
Refrigeration water pipe is connected.
Because that can there is ring-around, i.e. electric current in the conductive coil 2 by annular always near inductor wire in electric current
Side where enclosing 3 axis is big, and small away from the side of the axis of inductance coil 3, thus, in order to reduce the loss of electric energy, reduces
The generation of point heat, the resistance size of the side wall of conductive coil 2 is in positive apart from size apart from the axis of inductance coil 3 with it
Close and set.
As shown in figure 3, the thickness of the side wall of conductive coil 2 reduces along its direction away from the axis of inductance coil 3.So that conductive
Coil 2 is bigger apart from the sidewall thickness of the axis side of inductance coil 3, and corresponding resistance value is smaller（By resistance calculations formula R
=P L S can be seen that cross-sectional area S is bigger, resistance R is smaller）.When electric current passes through conductive coil 2, due to ring-around
Effect, current convergence is close in the side wall of the axis side of inductance coil 3 in conductive coil 2, due to the partial ohmic value most
It is small, formula Q=I2Rt is produced from electric heating, in the case where size of current is constant, the heat of the smaller generation of resistance is smaller.Cause
Electric energy that this above-mentioned technical proposal is consumed when can cause electric current by conductive coil 2 is minimum, and the heat of generation relatively also can be compared with
It is low.
In the utility model, it is preferred that conductive coil 2 is in hollow rectangle perpendicular to the section of its length direction, and
Sidewall thickness thickness more than remaining side wall of the conductive coil 2 near the axis of inductance coil 3.Above-mentioned setting, convenient production
Also ensure that the fuel factor that electric current ring-around is produced is reduced as far as possible simultaneously.
In order to ensure the electric conductivity of conductive coil 2, and meet industrial practicality, in the utility model, lead
Electric coil 2, conductive electrode plate 4 and water inlet pipe 8, outlet pipe 9 are made by copper or other electrical conductivity alloys.
In order that whole commutation inductance 1 it is easy for installation, installing plate is fixedly installed on containment vessel 5, opened on installing plate
Mounting hole 11 is provided with, as shown in figure 1, in the utility model, installing plate realizes multiplexing with conductive electrode plate 4, i.e., in conductive electrode
The convenient installation of mounting hole 11 is opened up on plate 4.
In order to avoid bursting separation between conductive coil 2 due to the effect of electric repulsion, it is steady that enhancing commutation inductance 1 works
It is qualitative, it is connected between two neighboring conductive coil 2 for preventing the two to be located remotely from each other the bundled piece of motion 12, above-mentioned bundle
Tie up part 12 to be made up of non-conducting material, such as nylon rope.
Embodiment two
As shown in Figure 4 and Figure 5, a kind of commutation inductance 1, the difference with embodiment one is：Leaned on the side wall of conductive coil 2
The axis side of nearly inductance coil 3 is provided with the conductive material layer 10 for reducing resistance.Above-mentioned conductive material layer 10 by
Metal osmosis process is made or welding fabrication, such as in above-mentioned copper conductive coil 2 near the axis side of inductance coil 3
Argent or silver-plated etc. is added on the wall of side.It is similar to the cross-sectional area of increase conductive coil 2, such scheme is effectively reduced leads
Electric coil 2 is close to the resistance size of the axis side side wall of inductance coil 3, electricity during so as to reducing electric current by conductive coil 2
Can loss, the thus generation of reduction heat.
The beneficial effect of above-described embodiment one and embodiment two is：First, can be using in water-cooling channel 7 when using
Water is by heat absorption and excludes, it is to avoid inductance coil 3 burns because temperature is too high.Secondly, the guarantor that epoxy resin 6 is made is added
Protective case 5, the risk that inductance coil 3 bursts when by electric repulsion is reduced while lifting 3 insulating properties of inductance coil.Finally,
According to the resistance resistance of the distance between each several part of conductive coil 2 and the axis of inductance coil 3 change regulation various pieces of conductive coil 2
Distribution value so that the electric energy that electric current passes through to be consumed during conductive coil 2 is smaller, the heat reduction of generation.Thus, heat is being improved
The generation of heat is reduced while excluding efficiency, commutation inductance 1 is efficiently avoid and is burst because temperature is too high etc. and pacify
Full accident.
Based on above-mentioned commutation inductance 1, the utility model also provides a kind of intermediate frequency power supply equipment, including commutation system and inversion
System, also including above-mentioned water-cooled commutation inductance, wherein, the conductive electrode plate 4 of commutation inductance 1 is electrically connected with inversion system.Due to
Converting commutating current is very huge in intermediate frequency power supply, by above-mentioned technical proposal, improves the stability and security of intermediate frequency power supply work,
Reducing energy consumption.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to protection domain of the present utility model.Should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (8)
1. a kind of commutation inductance, including by the inductance coil (3) of conductive coil (2) coiling side by side, and located at inductor wire
The conductive electrode plate (4) of (3) end is enclosed, the outside of the inductance coil (3) is coated with one prevents inductance coil (3) from denounceing due to electricity
Power and the containment vessel (5) that bursts, it is characterised in that the conductive coil (2) forms a water in hollow setting along its length
Cold passage (7), the two ends of the conductive coil (2) are integrally formed the water inlet pipe for being provided with and being connected with the water-cooling channel (7)
And outlet pipe (9) (8)；The resistance size of conductive coil (2) side wall with its apart from inductance coil (3) axis distance
Size is proportionate setting.
2. commutation inductance according to claim 1, it is characterised in that the thickness of conductive coil (2) side wall is remote along its
Direction from inductance coil (3) axis is gradually reduced.
3. commutation inductance according to claim 1, it is characterised in that near inductance on the side wall of the conductive coil (2)
The axis side of coil (3) is provided with the conductive material layer (10) for reducing resistance.
4. the commutation inductance according to Claims 2 or 3, it is characterised in that the conductive coil (2) is along perpendicular to its length
The rectangular setting of cross sectional shape in direction, and conductive coil (2) is more than remaining near a sidewall thickness of inductance coil (3) axis
The thickness of side wall.
5. commutation inductance according to claim 4, it is characterised in that the conductive coil (2), conductive electrode plate (4) with
And water inlet pipe (8), outlet pipe (9) are made of copper.
6. commutation inductance according to claim 5, it is characterised in that be fixedly installed installing plate on the containment vessel (5),
Mounting hole (11) is offered on the installing plate.
7. commutation inductance according to claim 1, it is characterised in that connect setting between two neighboring conductive coil (2)
Have for preventing the two to be located remotely from each other the bundled piece of motion (12).
8. a kind of intermediate frequency power supply equipment, including commutation system and inversion system, it is characterised in that also including such as claim 7 institute
The commutation inductance (1) stated, wherein, the conductive electrode plate (4) of the commutation inductance (1) is electrically connected with the inversion system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621319632.5U CN206293279U (en) | 2016-12-03 | 2016-12-03 | Commutation inductance and the intermediate frequency power supply equipment containing the commutation inductance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621319632.5U CN206293279U (en) | 2016-12-03 | 2016-12-03 | Commutation inductance and the intermediate frequency power supply equipment containing the commutation inductance |
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| Publication Number | Publication Date |
|---|---|
| CN206293279U true CN206293279U (en) | 2017-06-30 |
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| CN201621319632.5U Active CN206293279U (en) | 2016-12-03 | 2016-12-03 | Commutation inductance and the intermediate frequency power supply equipment containing the commutation inductance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112614664A (en) * | 2020-12-11 | 2021-04-06 | 华中科技大学 | Repetition frequency water-cooling inductor for special integrated power supply system and manufacturing method |
-
2016
- 2016-12-03 CN CN201621319632.5U patent/CN206293279U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112614664A (en) * | 2020-12-11 | 2021-04-06 | 华中科技大学 | Repetition frequency water-cooling inductor for special integrated power supply system and manufacturing method |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201600 555 Zhongmin Road, Maogang Town, Songjiang District, Shanghai Patentee after: Shanghai Zhaoli electric furnace equipment Co.,Ltd. Address before: 201600 555 Zhongmin Road, Maogang Town, Songjiang District, Shanghai Patentee before: SHANGHAI ZHAOLI ELECTRICAL APPLIANCES MANUFACTURING Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |