CN208422620U - A kind of low noise level transformer of adjustable no-load current - Google Patents
A kind of low noise level transformer of adjustable no-load current Download PDFInfo
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- CN208422620U CN208422620U CN201821102244.0U CN201821102244U CN208422620U CN 208422620 U CN208422620 U CN 208422620U CN 201821102244 U CN201821102244 U CN 201821102244U CN 208422620 U CN208422620 U CN 208422620U
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Abstract
The utility model relates to transformer technology fields, and in particular to a kind of low noise level transformer of adjustable no-load current, including horizontal yoke and long iron core；The horizontal yoke includes upper horizontal yoke and lower horizontal yoke；Iron core air gap is equipped between the upper horizontal yoke and long iron core and between lower horizontal yoke and long iron core；Coil is arranged on the long iron core；The low noise level transformer further includes pedestal and the clamping device on pedestal；The long iron core and horizontal yoke are clamped in clamping device；The low noise level transformer further includes for by the locked instrument of horizontal yoke and long iron core locking.The utility model is provided with hyphen yoke, the intersection of long stem Yu horizontal yoke is arranged in iron core air gap, changes the no-load current of transformer by adjusting air gap thickness by setting long stem-type for the iron core column of transformer between adjacent long stem；Additionally by locked instrument is arranged on the inside of the both ends of lower clamp plate on the transformer, long stem and horizontal yoke are further locked, product noise can be greatly reduced.
Description
Technical field
The utility model relates to transformer technology fields, and in particular to a kind of low noise level transformer of adjustable no-load current.
Background technique
No-load transformer electric current is by the Vector modulation of reactive current and watt current, and often idle component accounting can greatly very
It is more.Relatively good transformer should be the mutual containing by its own various parameters, be finally reached performance balance, cost performance most
It is high.
There is a kind of contravariant transformer for inverter to be not only integrated with high leakage reactance for filtering, also has very big
Unloaded reactive current carrys out the direct current that the low capacity current for disappearing LC filtering end shoves with the starting for reducing complete machine, also can reduce iron core
Magnetization.So this kind of transformer generally requires artificially to increase no-load transformer electric current, to optimize the overall performance of inverter.
Currently, the conventional process for artificially increasing no-load transformer electric current is to separate the iron core column of transformer and horizontal yoke,
Air gap is added between its each stem and up and down horizontal yoke, the mesh of adjustment no-load transformer electric current is reached by adjusting air gap thickness
's.But so, since stem and horizontal yoke are cut, and the structural member of transformer also can only fasten horizontal yoke and can not fasten
Stem, when complete machine inversion works, fundamental wave and modulating wave can make transformer stem generate various abnormal sounds, vibration and noise
Deng this is that people are insufferable.
As shown in Figure 1, the iron core is made of upper horizontal yoke 101a, lower horizontal yoke 101b, tri-phase iron core column 102a, 102b, 102c,
Air gap 103 is arranged between upper horizontal yoke 101a and tri-phase iron core column 102a, 102b, 102c, and the thickness by adjusting air gap 103 is
The no-load current of changeable transformer.And three stems 102a, 102b, 102c and upper horizontal yoke 101a, lower horizontal yoke 101b are to cut
Shape, the fastener of transformer can be only installed at up and down on horizontal yoke 101a, 101b, and can not be fastened to three stem 102a, 102b,
On 102c.It is existing solve the method that the vibration of this kind of transformer fe stem generates noise be bonded with epoxy glue horizontal yoke 101a,
101b and stem 102a, 102b, 102c.But it is not difficult to find that this method can only temporarily reduce product noise, with the time
Passage, epoxy glue gradually fails, and iron core column 102a, 102b, 102c vibration and noise will increasingly increase.
Utility model content
The purpose of this utility model is to provide a kind of the low of adjustable no-load current for above-mentioned deficiency in the prior art
Noise level transformer.
The purpose of this utility model is achieved through the following technical solutions: a kind of low noise level transformer of adjustable no-load current,
The long iron core being parallel to each other including horizontal yoke and three；The horizontal yoke includes upper between the top of two neighboring long iron core
Horizontal yoke and the lower horizontal yoke between the bottom of two neighboring long iron core；Between the upper horizontal yoke and the long iron core of two sides and
Iron core air gap is equipped between lower horizontal yoke and the long iron core of two sides；Coil is arranged on the long iron core；
The low noise level transformer further includes pedestal and the clamping device on pedestal；The two sides of the long iron core with
And the two sides of horizontal yoke are clamped in clamping device；
The low noise level transformer further includes for by the locked instrument of horizontal yoke and long iron core locking.
The utility model is further arranged to, and the clamping device includes set on the first clamping plate of long mandrel bottom, the
Second splint and third clamping plate, the 4th clamping plate being set at the top of long iron core；The two sides of the long mandrel bottom and lower horizontal yoke
Two sides be set between first clamping plate and second clamping plate；The two sides of two sides and upper horizontal yoke at the top of the long iron core are set to
Between third clamping plate and the 4th clamping plate；The long iron core, upper horizontal yoke, lower horizontal yoke and each clamping plate are equipped with pilot hole；It is described
Long iron core and horizontal yoke pass through cross locking bolt respectively and connect with each clamping plate.
The utility model is further arranged to, and the locked instrument includes upright lock bolt and is set to first clamping plate, the
Second splint, third clamping plate, the fixed block on the 4th clamping plate；The fixed block is equipped with screw hole；The upright lock bolt passes through screw hole
Long iron core and horizontal yoke are locked afterwards.
The utility model is further arranged to, and between the first clamping plate and second clamping plate and third clamping plate and the 4th presss from both sides
U-shaped casting die is equipped between plate.
The utility model is further arranged to, and the coil includes the conductor for being wrapped in long iron core surface, is set to conductor table
The insulating layer in face, set on the copper busbar leading intracorporal coil airway and being connect with conductor.
The utility model is further arranged to, and the horizontal yoke and intermediate long iron core are integrally formed.
The utility model has the beneficial effects that 1. the utility model are by setting long stem-type for the iron core column of transformer,
Hyphen yoke is provided between adjacent long stem, the intersection of long stem Yu horizontal yoke is arranged in iron core air gap, by adjusting air gap thickness
It spends to change the no-load current of transformer；
2, it is secured directly to the both ends of long stem using the upper lower clamp plate of transformer, prevents long stem from vibrating；And by
Locked instrument is set on the inside of the both ends of lower clamp plate on transformer, further locks long stem and horizontal yoke, product can be greatly reduced and make an uproar
Sound.
Detailed description of the invention
Utility model is described further using attached drawing, but the embodiment in attached drawing does not constitute and appoints to the utility model
What is limited, for those of ordinary skill in the art, without creative efforts, can also be according to the following drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of this traditional transformer iron core；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the partial enlarged view at the position A in Fig. 2；
Fig. 4 is the structural schematic diagram of the long iron core of the utility model and the cooperation of horizontal yoke；
Fig. 5 is the structural schematic diagram of the utility model long iron core and fitting coils；
Description of symbols of the Fig. 1 into Fig. 5:
The upper horizontal yoke of 11-；Horizontal yoke under 12-；2- long iron core；3- iron core air gap；4- coil；41- conductor；42- insulating layer；43-
Coil airway；44- copper busbar；5- pedestal；51- first clamping plate；52- second clamping plate；53- third clamping plate；The 4th clamping plate of 54-；
55- pilot hole；56- cross locking bolt；6- fixed block；61- upright lock bolt；62-U type casting die.
Specific embodiment
The utility model is further described with the following Examples.
From Fig. 2 to Fig. 5；A kind of low noise level transformer of adjustable no-load current described in the present embodiment, including horizontal yoke
And three long iron cores 2 being parallel to each other；The horizontal yoke includes the upper horizontal yoke 11 between the top of two neighboring long iron core 2
And the lower horizontal yoke 12 between the bottom of two neighboring long iron core 2；Between the upper horizontal yoke 11 and the long iron core 2 of two sides with
And iron core air gap 3 is equipped between lower horizontal yoke 12 and the long iron core 2 of two sides；Coil 4 is arranged on the long iron core 2；
The low noise level transformer further includes pedestal 5 and the clamping device on pedestal 5；The two of the long iron core 2
Side and the two sides of horizontal yoke are clamped in clamping device；
The low noise level transformer further includes the locked instrument for locking horizontal yoke and long iron core 2.
Specifically, the present embodiment is provided between adjacent long stem by setting long stem for the iron core column of transformer
The intersection of long stem Yu horizontal yoke is arranged in hyphen yoke, iron core air gap 3, changes the zero load of transformer by adjusting air gap thickness
Electric current；Furthermore with the clamping device of transformer by the clamping of the two sides of long stem and horizontal yoke, it can prevent long stem from vibrating；
And by setting locked instrument, long stem and horizontal yoke are further locked, product noise can be greatly reduced.
A kind of low noise level transformer of adjustable no-load current described in the present embodiment, the clamping device include being set to length
The first clamping plate 51 of 2 bottom of iron core, second clamping plate 52 and the third clamping plate 53, the 4th clamping plate 54 that are set to long 2 top of iron core；
The two sides of 2 bottom of long iron core and the two sides of lower horizontal yoke 12 are set between first clamping plate 51 and second clamping plate 52；It is described
The two sides at long 2 top of iron core and the two sides of upper horizontal yoke 11 are set between third clamping plate 53 and the 4th clamping plate 54；The long iron
Core 2, upper horizontal yoke 11, lower horizontal yoke 12 and each clamping plate are equipped with pilot hole 55；The long iron core 2 and horizontal yoke pass through cross respectively
Lock bolt 56 is connect with each clamping plate.
Specifically, the present embodiment passes through setting first clamping plate 51, second clamping plate 52, third clamping plate 53 and the 4th clamping plate
54, cooperate cross locking bolt 56, so that two side compressions of long iron core 2, so as to prevent long stem from vibrating.
A kind of low noise level transformer of adjustable no-load current, the locked instrument include upright lock bolt described in the present embodiment
61 and it is set to first clamping plate 51, second clamping plate 52, third clamping plate 53, the fixed block 6 on the 4th clamping plate 54；The fixed block
6 are equipped with screw hole；The upright lock bolt 61 locks long iron core 2 with horizontal yoke after passing through screw hole.
By above-mentioned, enable to long iron core 2 to lock with horizontal yoke, long stem is further prevented to vibrate.
A kind of low noise level transformer of adjustable no-load current, the first clamping plate 51 and second clamping plate described in the present embodiment
U-shaped casting die 62 is equipped between 52 and between third clamping plate 53 and the 4th clamping plate 54.It can be to perpendicular by the way that U-shaped casting die 62 is arranged
Lock bolt 61 is limited.
A kind of low noise level transformer of adjustable no-load current described in the present embodiment, the coil 4 include being wrapped in long iron
The conductor 41 on 2 surface of core, set on the insulating layer 42 on 41 surface of conductor, the coil airway 43 in conductor 41 and with conductor 41
The copper busbar 44 of connection.
A kind of low noise level transformer of adjustable no-load current described in the present embodiment, the horizontal yoke and intermediate long iron core 2
It is integrally formed.
Finally it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than to this reality
With the limitation of novel protected range, although being explained in detail referring to preferred embodiment to the utility model, this field it is general
Lead to it will be appreciated by the skilled person that can be with the technical solution of the present invention is modified or equivalently replaced, without departing from this
The spirit and scope of utility model technical solution.
Claims (6)
1. a kind of low noise level transformer of adjustable no-load current, it is characterised in that: including horizontal yoke and three length being parallel to each other
Iron core (2)；The horizontal yoke include set on two neighboring long iron core (2) top between upper horizontal yoke (11) and be set to adjacent two
Lower horizontal yoke (12) between the bottom of a long iron core (2)；Between the upper horizontal yoke (11) and the long iron core (2) of two sides and lower cross
Iron core air gap (3) are equipped between yoke (12) and the long iron core (2) of two sides；Coil (4) are arranged on the long iron core (2)；
The low noise level transformer further includes pedestal (5) and the clamping device on pedestal (5)；The long iron core (2)
Two sides and the two sides of horizontal yoke are clamped in clamping device；
The low noise level transformer further includes the locked instrument for locking horizontal yoke and long iron core (2).
2. a kind of low noise level transformer of adjustable no-load current according to claim 1, it is characterised in that: the clamping dress
It sets including set on the first clamping plate (51) of long iron core (2) bottom, second clamping plate (52) and at the top of long iron core (2)
Third clamping plate (53), the 4th clamping plate (54)；The two sides of long iron core (2) bottom and the two sides of lower horizontal yoke (12) are set to
Between one clamping plate (51) and second clamping plate (52)；The two sides of two sides and upper horizontal yoke (11) at the top of the long iron core (2) are all provided with
Between third clamping plate (53) and the 4th clamping plate (54)；The long iron core (2), upper horizontal yoke (11), lower horizontal yoke (12) and each
Clamping plate is equipped with pilot hole (55)；The long iron core (2) and horizontal yoke pass through cross locking bolt (56) respectively and connect with each clamping plate.
3. a kind of low noise level transformer of adjustable no-load current according to claim 2, it is characterised in that: the locking dress
It sets including upright lock bolt (61) and set on first clamping plate (51), second clamping plate (52), third clamping plate (53), the 4th clamping plate
(54) fixed block (6) on；The fixed block (6) is equipped with screw hole；The upright lock bolt (61) passes through long iron core after screw hole
(2) it is locked with horizontal yoke.
4. a kind of low noise level transformer of adjustable no-load current according to claim 3, it is characterised in that: first folder
U-shaped casting die (62) are equipped between plate (51) and second clamping plate (52) and between third clamping plate (53) and the 4th clamping plate (54).
5. a kind of low noise level transformer of adjustable no-load current according to claim 1, it is characterised in that: the coil
(4) include the conductor (41) for being wrapped in long iron core (2) surface, the insulating layer (42) for being set to conductor (41) surface, be set to conductor
(41) coil airway (43) in and the copper busbar (44) being connect with conductor (41).
6. a kind of low noise level transformer of adjustable no-load current according to claim 1, it is characterised in that: the horizontal yoke with
Intermediate long iron core (2) is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821102244.0U CN208422620U (en) | 2018-07-11 | 2018-07-11 | A kind of low noise level transformer of adjustable no-load current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821102244.0U CN208422620U (en) | 2018-07-11 | 2018-07-11 | A kind of low noise level transformer of adjustable no-load current |
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| Publication Number | Publication Date |
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| CN208422620U true CN208422620U (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821102244.0U Active CN208422620U (en) | 2018-07-11 | 2018-07-11 | A kind of low noise level transformer of adjustable no-load current |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847341A (en) * | 2018-07-11 | 2018-11-20 | 东莞市大忠电子有限公司 | A kind of low noise level transformer and its manufacturing process of adjustable no-load current |
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2018
- 2018-07-11 CN CN201821102244.0U patent/CN208422620U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847341A (en) * | 2018-07-11 | 2018-11-20 | 东莞市大忠电子有限公司 | A kind of low noise level transformer and its manufacturing process of adjustable no-load current |
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