CN209692622U - Output terminal and current transformer - Google Patents
Output terminal and current transformer Download PDFInfo
- Publication number
- CN209692622U CN209692622U CN201822200027.1U CN201822200027U CN209692622U CN 209692622 U CN209692622 U CN 209692622U CN 201822200027 U CN201822200027 U CN 201822200027U CN 209692622 U CN209692622 U CN 209692622U
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- backboard
- output terminal
- binding post
- output
- copper bar
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Abstract
It includes backboard, magnet ring and multiple binding posts that the utility model embodiment, which provides a kind of output terminal and current transformer, the output terminal, in which: the multiple binding post is each passed through the backboard, and is fixedly connected with the backboard；The multiple binding post mutually insulated, and the first end of each binding post is located at the first side of the backboard, second end is located at second side of the backboard；The magnet ring to be fixedly connected on the backboard in a manner of the multiple binding post, and the magnet ring protrude from second side of the backboard size be less than the binding post second end protrude from the backboard second side size.The utility model embodiment is by the way that binding post and magnet ring to be integrated on backboard, the water proof and dust proof of output terminal can be realized without Glan, without dismantle converter box can butted line point checked, facilitate the installation and maintenance of output terminal, and it no longer needs to carry out individual magnet ring installation, reduces the requirement to installation space.
Description
Technical field
The utility model relates to power electronic equipment fields, more specifically to a kind of output terminal and current transformer.
Background technique
As transformation of electrical energy device, current transformer is had been widely used in power electronic equipment.The final output of current transformer is
Alternating current or direct current, and current transformer usually using switching copper bar or directly use is crimped with connection terminal (such as the end OT at present
Son) cable export electric energy.
When needing two-way or multiple-channel output, current transformer is by directly setting in switching copper bar aperture or on busbar ontology
The mode of multiple apertures is set, and exports electric energy using more cables.In the two-way or multiple-channel output structure, busbar ontology or turn
It connects copper bar to be fixed on cabinet or other structures part by insulating part, cable is then directly bound using binding band in box house.
However, being on the one hand easy when being directly connected to the structure of busbar ontology using the cable for being crimped with connection terminal
Busbar ontology is set to bear cable added force: since the general line footpath of cable is thicker, in the lesser situation of radius bend, cable
The stress of itself can be transmitted to busbar ontology connecting portion, so that busbar ontology is met with stresses larger, may be damaged when serious
The power device being connect with busbar.Also, in the connection structure, if the aperture on busbar ontology is dealt with improperly, it be easy to cause
Current distribution is uneven, local pyrexia is serious, reduces power quality.
The electric energy output structure combined using switching copper bar cable, is held although can alleviate busbar ontology to a certain extent
By stress, but during installation, due to usually requiring that cable wire outlet part water proof and dust proof (degree of protection will reach IP54 or more), it is
Reach said effect, usually cable need to be passed through Glan (i.e. waterproof end plug).Specifically, cable carefully connects the wire in cabinet inside
Afterwards, Glan plate need to be installed to cabinet, and tighten Glan and compel cap, to realize water-proof function.Due to needing in many cases pair
Cable wire outlet part is frequently checked that above-mentioned connection type just needs frequently to dismantle Glan and compels cap and Glan plate when checking,
Cause to check that efficiency reduces, Glan, which compels cap service life, to be reduced.
In addition, current transformer output also needs to inhibit common mode interference using magnet ring, it is common practice that cable is passed through into circular magnetic loop,
And magnet ring is tied up on cable using binding band.Since cable needs to disperse after same magnet ring to be pierced by cabinet, lead to institute
The installation operating space needed is larger.Particularly with the current transformer of traction electric machine power supply, generally requires and carries out wiring work in car body,
Cumbersome operating procedure increases labor intensity, reduces operating efficiency, and the operating space needed is larger, need it is reserved compared with
Big operation and maintenance space, is unfavorable for the optimization of car body integral layout.
Summary of the invention
The utility model embodiment, which is directed to when directly being exported using cable in above-mentioned current transformer, causes busbar ontology receiving to be answered
Power is larger, be easy to cause current distribution is uneven, and lower using inspection efficiency when switching copper bar and the output of cable combination,
Cumbersome problem provides a kind of output terminal and current transformer.
The technical solution that the utility model embodiment solves above-mentioned technical problem is to provide a kind of output terminal, including back
Plate, magnet ring and multiple binding posts, in which: the multiple binding post is each passed through the backboard, and fixes and connect with the backboard
It connects；The multiple binding post mutually insulated, and the first end of each binding post is located at the first side of the backboard, second end
Positioned at second side of the backboard；The magnet ring is fixedly connected on the backboard in a manner of around the multiple binding post,
And the magnet ring protrude from second side of the backboard size be less than the binding post second end protrude from the backboard
The size of second side.
Preferably, the radial section of the magnet ring is in oval ring, and is fixed by screws in second side of the backboard,
And the central axis of the central axis of the magnet ring and the binding post is respectively perpendicular to the backboard.
Preferably, the backboard is made of insulating material, and the output terminal further includes plastic shell, and outside the plastic packaging
In outside magnet ring, the second end of the binding post is exposed to outside the plastic shell valve jacket.
Preferably, the backboard, binding post, magnet ring are packaged as a whole by hot melt adhesive.
The utility model embodiment also provides a kind of current transformer, including casing, output copper bar and output as described above
Terminal；Wherein: the output copper installation is in the casing；There is terminal mouth, and the shape of the terminal mouth on the casing
Shape and size are matched with the shape and size of the backboard of the output terminal；The output terminal sealing is fixed on the casing
Terminal mouth, and the output copper bar is connected to the binding post of the output terminal by conducting connecting part.
Preferably, the conducting connecting part including switching copper bar and shunts busbar, and the switching copper bar and shunting busbar
It is respectively arranged in the casing；The shunting busbar is fixed on the output terminal in such a way that second side is towards output terminal
On, and the shunting busbar and the binding post are conductively connected；The first end of the switching copper bar is fixedly connected on the output
On copper bar, second end be fixedly connected on it is described shunt busbar the first side.
Preferably, the output copper bar includes heterogeneous output aperture, and the shunting busbar includes being separated by by insulating materials
Multi-disc copper sheet, and each phase output aperture of the output copper bar by a switching copper bar and described shunts busbar
A piece of copper sheet is conductively connected.
Preferably, described shunt has the mounting hole hyte being made of multiple conductive seats on busbar, and each conduction
Seat is conductively connected with a piece of copper sheet for shunting busbar；There is mounting hole, and each switching on each conductive seat
The second end of copper bar is connected and fixed by screw and a conductive seat.
Preferably, each binding post in the output terminal is fixed by a fixing screws and a conductive seat
Connection.
Preferably, include multiple mounting hole hytes on the shunting busbar, there are multiple ends on the casing
Rim of the mouth, the current transformer include multiple output terminals；Each output terminal sealing is fixed on the terminal mouth,
And the binding post in each output terminal is connected to a mounting hole hyte for shunting busbar.
The output terminal and current transformer of the utility model embodiment, by the way that binding post and magnet ring are integrated on backboard, nothing
Need Glan that the water proof and dust proof of output terminal can be realized, without dismantle converter box can butted line point checked, side
Output terminal installation and maintenance, and no longer need to carry out individual magnet ring installation, reduce the requirement to installation space.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of output terminal provided by the embodiment of the utility model；
Fig. 2 be in Fig. 1 output terminal along the schematic diagram of the section structure of line A-A；
Fig. 3 is the structural schematic diagram of current transformer provided by the embodiment of the utility model；
Fig. 4 is the lateral structure schematic diagram of current transformer provided by the embodiment of the utility model；
Fig. 5 is the structural schematic diagram of the switching copper bar in current transformer provided by the embodiment of the utility model；
Fig. 6 is the structural schematic diagram of the shunting busbar in current transformer provided by the embodiment of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
It as shown in Figs. 1-2, is the structural schematic diagram of output terminal provided by the embodiment of the utility model, which can
Power output applied to power electronic equipments such as current transformers.Output terminal in the present embodiment include backboard 11, magnet ring 12 with
And the quantity of multiple binding post 13(binding posts 13 can be adjusted according to the application scenarios of output terminal, such as when output terminal is used for
When exporting three-phase electric energy, which may include three binding posts 13).Above-mentioned multiple binding posts 13 are each passed through backboard 11,
And it is fixedly connected with backboard 11 (to reach compared with high-protection level, the junction sealing of backboard 11 and binding post 13)；It is multiple to connect
Terminal 13 can realize one group of power output (such as when for three-phase electric energy output when, output terminal include three binding posts 13, and
Each binding post 13 is for connecting phase output).After being installed to backboard 11, mutually insulated (wiring between multiple binding posts 13
Spacing between column 13 need to be greater than safety distance, to meet insulation and safety requirement), and the first end of each binding post 13 is located at
First side of backboard 11, second end are located at second side of backboard 11；Magnet ring 12 is fixed in a manner of around multiple binding posts 13 to be connected
(center through hole that i.e. multiple binding posts 13 pass through magnet ring 12) is connect on backboard 11, and magnet ring 12 protrudes from second side of backboard 11
Size be less than binding post 13 second end protrude from backboard 11 second side size.
The anti-of output terminal can be realized by the way that binding post 13 to be integrated on backboard 11, without Glan in above-mentioned output terminal
Water is dust-proof, thus output terminal need to only be removed when butted line point is checked, without dismantling converter box,
Glan need not often be dismantled and compel cap, facilitate the installation and maintenance of output terminal.And due to being integrated with magnet ring 12 on backboard 11,
The common mode interference that can inhibit output alternating current, meets Electro Magnetic Compatibility (Electro Magnetic Compatibility, EMC)
Requirement to interference improves power quality, no longer needs to carry out individual magnet ring installation inside current transformer, reduces empty to installation
Between requirement.
Specifically, the first end of above-mentioned binding post 13 can have the first screw hole 131, to can realize that current transformer etc. is internal defeated
Copper bar connects out；The second end of the binding post 13 can have the second screw hole 132, to facilitate the wiring of electrical equipment.Also, In
In above-mentioned output terminal, the radial section for the common mode interference for preferably inhibiting each phase output, above-mentioned magnet ring 12 can be in ellipse
Annular, the structure can also save the volume of output terminal.Due to magnet ring 12, weight itself is larger, is fixed by screws in backboard
11 second side is fixed with guaranteeing that magnet ring 12 is stablized.Also, the central axis of magnet ring 12 and the central axis difference of binding post 13 can be made
Perpendicular to backboard 11, to facilitate external cabling.
To make output terminal have preferable insulation performance, above-mentioned backboard 11 can be made of insulating material, and output terminal
It further include plastic shell 14.Plastic shell 14 can be placed on outside magnet ring 12, and the second end of binding post 13 is exposed to plastic shell 14
It is external.
In addition, backboard 11, binding post 13, magnet ring 12 are packaged as a whole by hot melt adhesive, to substantially increase output end
The globality of son, convenient for improving security level.
It as shown in Figure 3-4, is the schematic diagram of current transformer provided by the embodiment of the utility model, which can be frequency conversion
Device, inverter etc. can export alternating current to electrical equipment.The current transformer of the present embodiment include casing 40, output copper bar 43 with
And output terminal as mentioned.Wherein, above-mentioned output copper installation is in casing 40, and the exchange for being connected to power cell 42 is defeated
Outlet.There is terminal mouth (such as front panel, backboard or side plate of casing 40) on casing 40, and the shape and size of the terminal mouth
In the shape and size matching of the backboard 11 of output terminal；The terminal mouth that output terminal sealing is fixed on casing 40 (such as passes through
Backboard 11 is fixed to casing 40 by the screw 15 of the fixation hole 111 on backboard 11, and can be set between backboard 11 and casing 40
Set seal washer), output copper bar 43 is connected to the first end of the binding post 13 of output terminal by conducting connecting part.In this way, outer
Portion's electrical equipment can be connected to the second end of binding post 13 by cable (such as the cable for being crimped with OT terminal) and screw 16, real
Existing current transformer for electricity output.
To protect output terminal, the settable terminal box 50 in the outside of said machine casing 40 need to only be beaten when carrying out patching operations
Open the cover board in terminal box 50.
The exchange output of power cell 42 is guided to 40 outside of casing by output terminal by above-mentioned current transformer, while passing through magnetic
Ring 12 inhibits the common mode interference of exchange output, i.e. output terminal while realizing sealed wiring, it can be achieved that common mode interference inhibits.
Specifically, above-mentioned conducting connecting part may include switching copper bar 31 and shunt busbar 20, and transfer copper bar 31 and shunting
Busbar 20 is respectively arranged in casing 40.Above-mentioned shunting busbar 20 is fixed on output end in such a way that second side is towards output terminal
On son, and the binding post 13 for shunting busbar 20 and output terminal is conductively connected.The first end of switching copper bar 31 is fixedly connected on defeated
Out on copper bar 43, second end is then fixedly connected on the first side for shunting busbar 20.
Exporting copper bar 43 may include heterogeneous output aperture, and each phase output aperture is for connecting phase output.Correspondingly, divide
Flowing busbar 20 includes the multi-disc copper sheet being separated by by insulating materials, and each phase output aperture for exporting copper bar 43 is turned by one
It connects copper bar 31 and shunts a piece of copper sheet conductive connection of busbar 20.For example, when current transformer exports U, V, W three-phase electric energy, output
Copper bar 43 includes U phase, V phase, the output of W phase three-phase, and conduction connecting structure includes three switching copper bars 31, and shunting busbar 20 includes three
Piece copper sheet, and each phase in the U phase of output copper bar 43, V phase, W phase passes through a switching copper bar 31 and the one of shunting busbar 20
Piece copper sheet is conductively connected.
In conjunction with Fig. 5, whole copper bar 31 of transferring can be L-shaped structure, and have self-clinching nut in the first end of switching copper bar 31
Or welded nut 312, second end can then have through-hole 311, in specific connection, the first end of switching copper bar 31 passes through screw 32
(screw 32 is threadedly coupled to self-clinching nut or welded nut 312) is fixed in the phase output aperture of output copper bar 43, and
The second end of the switching copper bar 31 then passes through screw (screw passes through through-hole 311) and is fixed on shunting busbar 20.Above structure
It can avoid generating stress on output copper bar 43, output copper bar 43 avoided to damage.
In conjunction with Fig. 6, shunting has the mounting hole hyte being made of multiple conductive seats 201 on busbar 20, and each conductive seat
201 are conductively connected (multiple conductive seats 201 and shunting busbar 20 in same mounting hole hyte with a piece of copper sheet for shunting busbar 20
In copper sheet be conductively connected in a manner of corresponding).There is mounting hole (can be screw hole or through-hole) on each conductive seat 201,
And the second end of each switching copper bar 31 is connected and fixed by screw with a conductive seat 201.
Particularly, switching 31 second end of copper bar is passed through for connecting switching copper bar 31 and shunting the fixing screws 22 of busbar 20
Through-hole 311 and conductive seat 201 on through-hole after, be threadedly coupled to the first screw hole of the first end of the binding post 13 of output terminal
131.To the copper bar 31 that will transfer be mechanically fixed to shunt busbar 20 while, also will shunting busbar 20 be mechanically fixed to it is defeated
Terminal out, and also achieve switching copper bar 31 and shunt the conductive connection of copper sheet in busbar 20, and shunt in busbar 20
The conductive connection of copper sheet and binding post 13.Each binding post to improve the stability for shunting busbar 20, in above-mentioned output terminal
13 are fixedly connected by a fixing screws 22 with a conductive seat 201.
In addition, settable multiple mounting hole hytes on above-mentioned shunting busbar 20, each mounting hole hyte is for connecting one
A electrical equipment, such as when exporting the output three-phase electric energy of copper bar 43, each the mounting hole hyte for shunting busbar 20 includes three
A conductive seat 201.Correspondingly, there are multiple terminal mouths, current transformer includes multiple output terminals on casing 40；Each output terminal
Sealing is fixed on a terminal mouth, and the binding post 13 in each output terminal is connected to an installation hole location for shunting busbar 20
Group.
The output for exporting copper bar 43 can be converted to the output of two-way very same current by above-mentioned shunting busbar 20, so both
It can guarantee through switching copper bar 31 and export the uniformity of the transmission electric current of copper bar 43, while can use again and shunting busbar 20
Heat-sinking capability reduces the temperature rise of whole system, adaptability and reliability of the lifting system to environment.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
It is subject to the protection scope in claims.
Claims (10)
1. a kind of output terminal, which is characterized in that including backboard, magnet ring and multiple binding posts, in which: the multiple binding post
It is each passed through the backboard, and is fixedly connected with the backboard；The multiple binding post mutually insulated, and each binding post
First end be located at the first side of the backboard, second end is located at second side of the backboard；The magnet ring is described more to surround
The mode of a binding post is fixedly connected on the backboard, and the magnet ring protrudes from the size of second side of the backboard and is less than
The second end of the binding post protrudes from the size of second side of the backboard.
2. output terminal according to claim 1, which is characterized in that the radial section of the magnet ring is in oval ring, and
It is fixed by screws in second side of the backboard, and the central axis of the central axis of the magnet ring and the binding post is respectively perpendicular
In the backboard.
3. output terminal according to claim 2, which is characterized in that the backboard is made of insulating material, the output
Terminal further includes plastic shell, and the plastic shell is placed on outside magnet ring, and the second end of the binding post is exposed to the plastic packaging
Shell exterior.
4. output terminal according to claim 2, which is characterized in that the backboard, binding post, magnet ring are sealed by hot melt adhesive
Dress is integrated.
5. a kind of current transformer, which is characterized in that including casing, output copper bar and as of any of claims 1-4
Output terminal；Wherein: the output copper installation is in the casing；There is terminal mouth, and the terminal mouth on the casing
Shape and size matched with the shape and size of the backboard of the output terminal；The output terminal sealing is fixed on the machine
The terminal mouth of shell, and the output copper bar is connected to the binding post of the output terminal by conducting connecting part.
6. current transformer according to claim 5, which is characterized in that the conducting connecting part includes switching copper bar and shunts female
Row, and the switching copper bar and shunting busbar are respectively arranged in the casing；The shunting busbar is exported with second side direction
The mode of terminal is fixed on the output terminal, and the shunting busbar and the binding post are conductively connected；The switching copper
The first end of row is fixedly connected on the output copper bar, second end is fixedly connected on first side for shunting busbar.
7. current transformer according to claim 6, which is characterized in that the output copper bar includes heterogeneous output aperture, described
Shunting busbar includes the multi-disc copper sheet being separated by by insulating materials, and each phase output aperture of the output copper bar passes through one
The switching copper bar and a piece of copper sheet for shunting busbar are conductively connected.
8. current transformer according to claim 7, which is characterized in that have on the shunting busbar and be made of multiple conductive seats
Mounting hole hyte, and each conductive seat and it is described shunt busbar a piece of copper sheet be conductively connected；Each conductive seat
It is upper that there is mounting hole, and the second end of each switching copper bar is connected and fixed by screw and a conductive seat.
9. current transformer according to claim 8, which is characterized in that each binding post in the output terminal passes through one
Fixing screws are fixedly connected with a conductive seat.
10. current transformer according to claim 9, which is characterized in that include multiple mounting holes on the shunting busbar
Hyte has multiple terminal mouths on the casing, and the current transformer includes multiple output terminals；Each output
Terminal sealing is fixed on the terminal mouth, and the binding post in each output terminal is connected to the shunting busbar
One mounting hole hyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822200027.1U CN209692622U (en) | 2018-12-26 | 2018-12-26 | Output terminal and current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822200027.1U CN209692622U (en) | 2018-12-26 | 2018-12-26 | Output terminal and current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209692622U true CN209692622U (en) | 2019-11-26 |
Family
ID=68596936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822200027.1U Active CN209692622U (en) | 2018-12-26 | 2018-12-26 | Output terminal and current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209692622U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546870A (en) * | 2018-12-26 | 2019-03-29 | 江苏经纬轨道交通设备有限公司 | Output terminal and current transformer |
| CN112701933A (en) * | 2020-12-22 | 2021-04-23 | 科华恒盛股份有限公司 | Inverter device |
-
2018
- 2018-12-26 CN CN201822200027.1U patent/CN209692622U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546870A (en) * | 2018-12-26 | 2019-03-29 | 江苏经纬轨道交通设备有限公司 | Output terminal and current transformer |
| CN109546870B (en) * | 2018-12-26 | 2024-02-27 | 江苏经纬轨道交通设备有限公司 | Output terminal and current transformer |
| CN112701933A (en) * | 2020-12-22 | 2021-04-23 | 科华恒盛股份有限公司 | Inverter device |
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