A kind of open-type current information gathers transformer
Technical field
The present invention relates to a kind of open-type current information and gather transformer, belong to electricity field.
Technical background
Open-type current information gathers transformer, and its cardinal principle is: by primary current and secondary coil noncontact every
Secondary current ratio is obtained from magnetic field induction.Open Type Electric Current Mutual Inductor can be divided into upper and lower two half shells, and upper and lower two half-shell
Equipped with two and half L-shaped iron cores in body, two iron cores can be opened in drawing, and wherein on half iron core equipped with solenoid.At present, open
Formula current transformer is used in power equipment, and its major function is in the case of not transforming existing equipment, completes existing
Fixing copper mother current row or wire carry out installing and current information sampling, it is achieved to electric energy running quality, power monitoring, efficiency
Management, the purposes such as the energy-conservation examination of department.
Commonly use both at home and abroad at present for tradition Open Type Electric Current Mutual Inductor, its primary current is with secondary current ratio
Peace times level.Owing to tradition Open Type Electric Current Mutual Inductor needs the intelligent terminal in the information of collection to install secondary meter additional, the most not only
Cost can be increased, and acquisition precision can be reduced.
Summary of the invention
It is an object of the present invention to provide a kind of open-type current information and gather transformer.
The present invention is to solve tradition Open Type Electric Current Mutual Inductor needs the intelligent terminal in the information of collection to install secondary additional
Instrument, thus increase cost, the problem reducing acquisition precision.
The technical solution adopted for the present invention to solve the technical problems is: a kind of open-type current information gathers transformer,
Including housing, iron core, described housing includes that upper shell and lower house, described iron core include L-type iron core and lower L-type ferrum
Core, described upper shell side is provided with rail cavity, and described upper shell is provided with binding post, and described lower house side is provided with track,
Being respectively equipped with U-shaped fixing forked standard on described upper shell and lower house, described U-shaped fixing forked standard is provided with U-shaped fixation fork, described on
The interior intracavity of housing is provided with L-type iron core, bobbin, coil, and described coil is wound on bobbin, and described bobbin is sleeved on
On L-type iron core transverse end face, the interior intracavity of described lower house is provided with lower L-type iron core, buffer spring, and lower L is located at by described buffer spring
Shaped iron core bottom.
Further, the contact surface of described lower L-type iron core and upper L-type iron core is inclined-plane, described lower L-type iron core and upper L-type
Iron core inclined-plane and iron core transverse cross section angulation are between 45 ° to 90 °.Before and after described upper shell, both sides are provided with anti-skidding pulling buckle
Stricture of vagina.The track of described lower house and the rail cavity tabling of upper shell.It is provided with plastic sheet spring in the groove of described U-shaped fixation fork.
Described U-shaped fixing forked standard at least 1.Described bobbin includes that two are moulded frame, and described bobbin is moulded frame by described two and spelled
Conjunction forms.
The invention has the beneficial effects as follows: a kind of open-type current information gathers transformer, including upper-lower casing, upper and lower L-type
Iron core and coil, described upper shell side is provided with rail cavity, and described upper shell is connected to binding post, and described lower house side is provided with
Track, the track of lower house can form a transformer entirety with the rail cavity tabling of upper shell, it is ensured that transformer drawing
Open and do not fall off and keep the alignment of transformer upper and lower both sides end face iron core, it is to avoid existing transformer upper and lower iron core side hinge
Chain is fixed, side sector opens the Touch error of generation, it is to avoid the electricity that two ends iron core contact is uneven, loose contact causes
The unstable problem with magnetic efficiency loss of stream, described upper-lower casing is equipped with U-shaped fixing forked standard, described U-shaped fixing forked standard sets
Having U-shaped fixation fork, transformer can be directly reliably fixed on the copper bus-bar of differing heights, width, thickness by U-shaped fixation fork,
Flexibly, safe and reliable, breach the dangerous mode of 3 bolt top copper bus-bars of tradition open-type transformer, described upper shell
Interior intracavity be provided with L-type iron core, bobbin, coil, described coil is wound on bobbin, and described bobbin is sleeved on L-type
On iron core transverse end face, described bobbin be two half mould frame split design, can flat-wise coil in direct-on-line coil, overcome
Former c-type mutual inductor coil is wound on the bobbin of semicircle iron core and to make wire squeeze folded deficiency, transformer structure toward middle
The tight resistance of compact, winding displacement is little, deposited air electric capacity is little between coil, improves the precision of electromagnetic efficiency and transformer, and described line
Coil design and processing are simple, and single rate is 10 times of former processing coil process efficiency, increases economic efficiency, described lower casing
The interior intracavity of body is provided with lower L-type iron core, buffer spring, and described buffer spring is located at lower L-type mandrel lower, described lower L-type iron core
Being cut sth. askew by a rectangular O shape iron core with upper L-type iron core to cut and form and its cutting contact surface is inclined-plane, the angle of facet uses
Between 45 ° to 90 °, the contact area of iron core can be made to increase to more than 1.4 times, add and be directly sleeved on L-type iron core transverse end face
Bobbin can the more coil turn of coiling compared to traditional wire coil, it is achieved that primary current design reaches kilo-ampere level and secondary is electric
Flow ratio is little to milliampere level, directly signal can be delivered to collecting terminal, it is not necessary to install secondary meter additional, reduce cost, subtract
Lack loss of field, improve the acquisition precision of transformer.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the present invention a kind of open-type current acquisition transformer.
Fig. 2 is the side view of the present invention a kind of open-type current acquisition transformer.
Fig. 3 is the rearview of the present invention a kind of open-type current acquisition transformer.
Fig. 4 is the decomposing schematic representation of the present invention a kind of open-type current acquisition transformer.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings:
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of open-type current acquisition transformer example that the present invention provides, including upper shell
1, lower house 2, upper L-type iron core 4, lower L-type iron core 3 and coil 22.
Described upper shell 1 top is provided with upper shell cover plate 6, and is fixed by screw 24 and 24-1,27 and 27-1, upper case cover
The side of plate 6 is provided with coil signal line end Stroma 9, terminal 7 and 7-1, and the upside of terminal base 9 is provided with terminal flap 8.Described upper casing
Body 1 side is provided with rail cavity, and rail cavity side is provided with U-shaped fixing forked standard 26, and U-shaped fixing forked standard 26 has two rows, is used for
The different height spacing regulations coordinating copper bus-bar 25 use, and U-shaped fixing forked standard 26 is provided with U-shaped fixation fork 13, at U-shaped fixation fork
Being provided with plastic sheet spring 33 in the groove of 13, clamping screw 15 and 15-1 is used for fixing, and copper bus-bar 25 can be embedded in U-shaped fixation fork 13
Groove in fixing connect, plastic sheet spring 33 is for strengthening the gmatjpdumamics to copper bus-bar 25.The both sides of described upper shell 1 are provided with even
Connect the locking screw bolt seat 18 and 21 of lower house 2, in the centre bore of locking screw bolt seat 18 and 21, be embedded with the locking screw of angle location
Bolt 16 and 17.Before and after described upper shell 1, both sides are provided with anti-skidding pulling buckle stricture of vagina 32.
Described lower house 2 bottom is provided with lower house cover plate 10, and is fixed by screw 30 and 30-1,31 and 31-1.Under described
Housing 2 side is provided with track 20, and it can form a transformer entirety with the rail cavity tabling of upper shell, and opposite side is provided with
U-shaped fixing forked standard 23, U-shaped fixing forked standard is provided with U-shaped fixation fork 12, is provided with plastic sheet spring in the groove of U-shaped fixation fork 12
33, clamping screw 14 and 14-1 is used for fixing.The both sides of described lower house 2 are provided with the stand 28 and 29 of upper-lower casing locking,
It is provided with small column, for the fixing use of upper shell clamping screw 16 and 17 shoes to recess in the downside of stand 28 and 29.Under described
The end face of opening of housing 2 is provided with the band salient point shell fragment 19 being inserted in upper shell 1 intracavity, to guarantee essence when upper and lower two housings combines
Degree.
The interior intracavity of described upper shell 1 is provided with L-type iron core 4, bobbin 5, coil 22, and described coil 22 is wound on bobbin
On 5, described bobbin 5 is sleeved on the horizontal end face of L-type iron core 4.Bobbin 5 is that the frame split of moulding of two half designs, can be straight
It is connected on flat-wise coil 22 on bobbin 5, overcomes former c-type mutual inductor coil and be wound on the bobbin of semicircle iron core and make wire
Squeezing folded deficiency toward middle, the tight resistance of transformer compact conformation, winding displacement is little, deposited air electric capacity is little between coil, improves electromagnetism
Efficiency and the precision of transformer, and bobbin 5 design and processing are simply, single rate is the 10 of former processing coil process efficiency
Times, increase economic efficiency.
The interior intracavity of described lower house is provided with lower L-type iron core 3, buffer spring 11, and lower L-type ferrum is located at by described buffer spring 11
Core 3 bottom.
Described lower L-type iron core 3 and upper L-type iron core 4 cut sth. askew by a rectangular O shape iron core cut form and its cutting contact surface be
Inclined-plane, between the angle of facet uses 45 ° to 90 °, can make the contact area of iron core increase to more than 1.4 times, adds directly set
The bobbin 5 being contained on the horizontal end face of L-type iron core 4 can the more coil turn of coiling compared to traditional wire coil, it is achieved that once
Current design reach kilo-ampere level and secondary current than little to milliampere level, directly signal can be delivered to collecting terminal, it is not necessary to add
Dress secondary meter, reduces cost, decreases loss of field, improve the acquisition precision of transformer.
As required, the specific embodiment of the present invention is disclosed herein, it will be appreciated that the disclosed embodiments simply demonstration
The present invention, the present invention can have different and alternative form enforcement.Accompanying drawing is not necessarily drawn to scale.Therefore, disclosed herein
Concrete structure and function detail are understood not in a limiting sense, but are only used as representative basis with teaching this area skill
Art personnel use the enforcement present invention.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creativeness
The every other embodiment obtained under work premise, broadly falls into the scope of protection of the invention.