CN216487670U - Aluminum row type series-parallel connection structure of dry current transformer - Google Patents
Aluminum row type series-parallel connection structure of dry current transformer Download PDFInfo
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- CN216487670U CN216487670U CN202122828792.XU CN202122828792U CN216487670U CN 216487670 U CN216487670 U CN 216487670U CN 202122828792 U CN202122828792 U CN 202122828792U CN 216487670 U CN216487670 U CN 216487670U
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Abstract
The utility model relates to the field of current transformers, in particular to an aluminum row type series-parallel connection structure of a dry type current transformer, which comprises a primary conductor, a mounting base body, a P1 conducting rod, a P2 conducting rod, a P1 lining plate, a P2 lining plate, a P1 connecting plate, a P2 connecting plate, a C1 connecting plate and a C2 connecting plate, wherein a plurality of aluminum rows are arranged in the primary conductor, the P1 connecting plate, the P2 connecting plate, the C1 connecting plate and the C2 connecting plate are all provided with bending parts, and the P1 connecting plate bending part, each aluminum row of the primary conductor P1 connecting end and the C1 connecting plate bending part are fixedly connected through a first bolt-nut component, the C2 connecting plate bending part, each aluminum row of the primary conductor P2 connecting end and the P2 connecting plate bending part are fixedly connected through a second bolt-nut component, the middle part of the P1 connecting plate is connected with a P1 conductive rod, the inner end of the P1 connecting plate is connected with a C1 connecting plate, the middle part of the P2 connecting plate is connected with a P2 conductive rod, and the inner end of the P2 connecting plate is connected with a C2 connecting plate. The utility model improves the connection stability and the insulation performance of the primary conductor of the dry type current transformer.
Description
Technical Field
The utility model relates to the field of current transformers, in particular to an aluminum row type series-parallel connection structure of a dry type current transformer.
Background
The dry current transformer is a transformer with good safety, small pollution and wide application, along with the technical development, the dry current transformer has been developed into a multi-transformation ratio structure from a single transformation ratio structure, and can fully meet the requirements of customers, wherein, the design of a primary series-parallel structure of the dry current transformer is very critical, in order to realize the multi-transformation ratio, the primary series-parallel design of the traditional dry current transformer usually adopts a primary conductor structure comprising a plurality of aluminum rows (or flexible cables), and different turns and currents of the primary conductor can be realized through different combinations and different series-parallel modes to realize the multi-current ratio, but the design of the primary series-parallel structure of the existing dry current transformer is not reasonable enough, for example, the Chinese utility model patent with the granted publication number of CN2922084Y, the name of multi-current ratio, high-precision organic composite insulation dry high-voltage current transformer discloses a series-parallel structure with a primary conductor comprising a plurality of flexible cables, the connection between each terminal board and the primary conductor and the connection between each terminal board are simple, and the structural connection stability and the insulation performance are required to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an aluminum row type series-parallel connection structure of a dry type current transformer, which improves the connection stability and the insulation performance of a primary conductor.
The purpose of the utility model is realized by the following technical scheme:
the utility model provides a dry-type current transformer aluminium bar formula series-parallel structure, includes primary conductor, installation pedestal and locates P1 conducting rod, P2 conducting rod, P1 welt, P2 welt, P1 connecting plate, P2 connecting plate, C1 connecting plate and C2 connecting plate in the installation pedestal, wherein be equipped with a plurality of aluminium rows in the primary conductor, just aluminium row head end all is equipped with the connecting hole, P1 connecting plate, P2 connecting plate, C1 connecting plate, C2 connecting plate all are equipped with the portion of bending, just the portion of bending of P1 connecting plate, each aluminium row head end of the P1 link end of primary conductor and the portion of bending of C1 connecting plate link firmly through first bolt-nut subassembly in proper order, the portion of bending of C2 connecting plate, each aluminium row of the P2 link end of primary conductor and the portion of bending of P2 connecting plate link firmly through second bolt-nut subassembly in proper order, in addition P1 middle part links firmly with P1 conducting rod through P1 welt, The inner end through a first series-parallel board with the C1 connecting plate links to each other, P2 connecting plate middle part is passed through P2 welt and is linked to each other with P2 conducting rod, the inner end through a second series-parallel board with C2 connecting plate links to each other, C1 connecting plate inner end is equipped with the C1 terminal, C2 connecting plate inner end is equipped with the C2 terminal, P1 conducting rod outer end stretches out outside the mount pad body and is equipped with the P1 terminal, P2 conducting rod outer end stretches out outside the mount pad body and is equipped with the P2 terminal.
All be equipped with the insulating piece between each aluminium row of primary conductor link, the P1 connecting plate outside of bending and the C2 connecting plate outside of bending all is equipped with first insulation pad, the C1 connecting plate is bent an inboard and the P2 connecting plate is bent an inboard and all is equipped with the insulating pad of second.
And a third insulating pad is arranged between one side of the aluminum row and the adjacent connecting plate, and a fourth insulating pad is arranged between the other side of the aluminum row and the adjacent connecting plate.
The P1 connecting plate and the C1 connecting plate are arranged in the mounting seat body in parallel, and the P2 connecting plate and the C2 connecting plate are arranged in the mounting seat body in parallel.
The primary conductor includes a conductor outer tube and a plurality of aluminum rows disposed within the conductor outer tube.
The installation pedestal body includes shield cover, insulating bottom plate and voltage-sharing cover, and two voltage-sharing covers set firmly respectively in insulating bottom plate both ends downside, and the shield cover is located the insulating bottom plate upside, and the conductor both ends pass again after corresponding side voltage-sharing cover respectively the insulating bottom plate enters into in the installation pedestal body, P1 connecting plate, P2 connecting plate, C1 connecting plate, C2 connecting plate are all located on the insulating bottom plate.
The utility model has the advantages and positive effects that:
1. the P1 connecting plate bending part, each aluminum row of the primary conductor P1 connecting end and the C1 connecting plate bending part are fixedly connected through the first bolt-nut component, the C2 connecting plate bending part, each aluminum row of the primary conductor P2 connecting end and the P2 connecting plate bending part are fixedly connected through the second bolt-nut component, so that the primary conductor connecting end is ensured to be firmly connected, the P1 connecting plate and the C1 connecting plate are arranged in parallel, and the P2 connecting plate and the C2 connecting plate are arranged in parallel, so that series-parallel connection conversion is facilitated, and the structure is more compact.
2. In the utility model, the insulation sheets are arranged among the aluminum rows, and the insulation pads are arranged on the inner side or the outer side of the bending part of each connecting plate and on the two sides of the aluminum rows, so that the insulation performance of the primary conductor connecting end is fully ensured.
Drawings
Figure 1 is a schematic structural view of the present invention,
figure 2 is a schematic view of the primary conductor structure of figure 1,
figure 3 is a view a-a of figure 2,
figure 4 is a view from direction B of figure 2,
figure 5 is a schematic view of the internal structure of the mounting base in figure 1,
figure 6 is a view B-B of figure 5,
fig. 7 is an enlarged view of fig. 6 at C.
The mounting structure includes a mounting base 1, a voltage-sharing cover 101, an insulating base plate 102, a shielding cover 103, a primary conductor 2, a conductor outer tube 201, a first aluminum row 202, a second aluminum row 203, a connection hole 204, a P1 terminal 3, a P1 conductive rod 4, a P1 liner plate 5, a P2 liner plate 6, a P2 conductive rod 7, a P2 terminal 8, a P2 connection plate 9, a first bending portion 901, a second limiting plate 902, a C1 connection plate 10, a C1 terminal 11, a C2 terminal 12, a C2 connection plate 13, a second limiting plate 131, a second bending portion 132, a second serial-parallel plate 14, a first serial-parallel plate 15, a P1 connection plate 16, a first insulating pad 17, an insulating plate 18, a second insulating pad 19, a third insulating pad 20, and a fourth insulating pad 21.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, the present invention includes a primary conductor 2, a mounting base 1, and a P1 conductive rod 4, a P2 conductive rod 7, a P1 lining plate 5, a P2 lining plate 6, a P1 connecting plate 16, a P2 connecting plate 9, a C1 connecting plate 10, and a C2 connecting plate 13 disposed in the mounting base 1, wherein as shown in fig. 2 to 3, the primary conductor 2 is U-shaped, one end of the primary conductor is a P1 connecting end, the other end of the primary conductor is a P2 connecting end, and a plurality of aluminum rows are disposed in the primary conductor 2, as shown in fig. 5 to 6, the P1 connecting plate 16, the P2 connecting plate 9, the C1 connecting plate 10, and the C2 connecting plate 13 are each provided with a bending portion, and the bending portions of the P1 connecting plate 16, the P1 connecting ends of the primary conductor 2, and the C1 connecting plate 10 are each connected by a first bolt-nut assembly, and the bending portions of the C2 connecting plate 13, the P2 connecting plate and the P2 connecting plate are connected by a second bolt nut assembly in turn The middle of the P1 connecting plate 16 is connected with the P1 conducting rod 4 through a P1 lining plate 5, the inner end of the P1 connecting plate is connected with the C1 connecting plate 10 through a first series-parallel plate 15, the middle of the P2 connecting plate 9 is connected with the P2 conducting rod 7 through a P2 lining plate 6, the inner end of the P2 connecting plate is connected with the C2 connecting plate 13 through a second series-parallel plate 14, a C1 terminal 11 is arranged at the inner end of the C1 connecting plate 10, a C2 terminal 12 is arranged at the inner end of the C2 connecting plate 13, the outer end of the P1 conducting rod 4 extends out of the mounting base 1 and is provided with a P1 terminal 3, and the outer end of the P2 conducting rod 7 extends out of the mounting base 1 and is provided with a P2 terminal 8.
As shown in fig. 2 to 4, the primary conductor 2 includes a conductor outer tube 201 and a plurality of aluminum bars disposed in the conductor outer tube 201, in this embodiment, the conductor outer tube 201 is a stainless steel tube, a first aluminum bar 202 and a second aluminum bar 203 are disposed in the conductor outer tube 201, and both side ends of the first aluminum bar 202 and both side ends of the second aluminum bar 203 are respectively provided with a connecting hole 204 for connecting with a corresponding connecting plate.
As shown in fig. 6-7, all be equipped with insulating piece 18 between each aluminium row of primary conductor 2 link and keep apart insulatedly, in addition the outside of the portion of bending of P1 connecting plate 16 and the outside of the portion of bending of C2 connecting plate 13 all is equipped with first insulating pad 17, C1 connecting plate 10 the portion of bending inboard and P2 connecting plate 9 the portion of bending inboard all is equipped with second insulating pad 19, is equipped with third insulating pad 20 between each aluminium row one side and the adjacent connecting plate, is equipped with fourth insulating pad 21 between opposite side and the adjacent connecting plate to further guarantee the insulating properties of primary conductor 2 link. As shown in fig. 7, taking a P2 connection plate 9 and a C2 connection plate 13 as an example, the first insulation pad 17 and the second insulation pad 19 are fixedly connected with the first bending portion 901 of the P2 connection plate 9 and the second bending portion 132 of the C connection plate 13 through a second bolt-nut assembly, a first limiting plate 902 with a bent end is arranged outside the first bending portion 901 of the P2 connection plate 9, a second limiting plate 131 is arranged inside the second bending portion 132 of the C2 connection plate 13, the first bending portion 901 and the first limiting plate 902 jointly define the position of the fourth insulation pad 21, and the second bending portion 132 and the second limiting plate 131 jointly define the position of the third insulation pad 20, so as to ensure that the C2 connection plate 13 is only in contact with the second aluminum row 203, and the P2 connection plate 9 is only in contact with the first aluminum row 202. Compared with the prior art (as shown in the patent figure 3 with the publication number of CN 2922084Y), the insulation performance of the utility model is greatly improved, and the operation stability of the equipment is also improved. In addition, the P1 connecting end of the primary conductor 2 is fixedly connected with the bending part of the P1 connecting plate 16 and the bending part of the C1 connecting plate 10, the P2 connecting end of the primary conductor 2 is fixedly connected with the bending part of the P2 connecting plate 9 and the bending part of the C2 connecting plate 13, the connecting reliability and stability are further improved, the P1 connecting plate 16, the C1 connecting plate 10, the P2 connecting plate 9 and the C2 connecting plate 13 can be arranged in the mounting seat body 1 in parallel, series-parallel connection conversion is facilitated, and the equipment structure is more compact.
As shown in fig. 5, the installation base body 1 includes a shielding cover 103, an insulating base plate 102 and voltage-sharing covers 101, the two voltage-sharing covers 101 are respectively and fixedly disposed on lower sides of two ends of the insulating base plate 102, the shielding cover 103 is disposed on an upper side of the insulating base plate 102, two ends of the primary conductor 2 respectively pass through the voltage-sharing covers 101 on corresponding sides and then pass through the insulating base plate 102 to enter the installation base body 1, and the P1 connection plate 16, the P2 connection plate 9, the C1 connection plate 10, and the C2 connection plate 13 are all disposed on the insulating base plate 102. The other primary conductor 2 is provided in a primary body to which the voltage-equalizing cover 101 is attached.
The working principle of the utility model is as follows:
the first series-parallel plate 15, the second series-parallel plate 14, the C1 terminal 11 and the C2 terminal 12 in the utility model play a series-parallel function to realize different transformation ratios, when the first series-parallel plate 15 and the second series-parallel plate 14 are removed, the C1 terminal 11 and the C2 terminal 12 are connected through wires, a series function is realized, when the C1 terminal 11 and the C2 terminal 12 are disconnected, the P1 connecting plate 16 is connected with the C1 connecting plate 10 through the first series-parallel plate 15, and the P2 connecting plate 9 is connected with the C2 connecting plate 13 through the second series-parallel plate 14, a parallel function is realized.
In the prior art, insulation and connection stability of a multi-aluminum-row (or multi-flexible cable) series-parallel connection design need to be improved, as shown in patents with an authorization publication number of CN2922084Y and the like. The bending part of the P1 connecting plate 16, each aluminum row of the P1 connecting end of the primary conductor 2 and the bending part of the C1 connecting plate 10 are fixedly connected through a first bolt-nut component, while the bending part of the C2 connecting plate 13, each aluminum row of the P2 connecting end of the primary conductor 2 and the bending part of the P2 connecting plate 9 are fixedly connected through a second bolt-nut component, so that on one hand, the connecting ends of the primary conductor 2 are ensured to be firmly and stably connected, on the other hand, the insulating performance of the connecting end of the primary conductor 2 is fully ensured through the design of an insulating sheet 18, a plurality of insulating pads and the like, the P1 connecting plate 16 and the C1 connecting plate 10 are arranged in parallel, and the P2 connecting plate 9 and the C2 connecting plate 13 are arranged in parallel, not only is the series-parallel connection conversion convenient, but also the structure is more compact.
Claims (6)
1. The utility model provides a dry-type current transformer aluminium row formula series-parallel structure which characterized in that: including primary conductor (2), installation pedestal (1) and locate P1 conducting rod (4), P2 conducting rod (7), P1 welt (5), P2 welt (6), P1 connecting plate (16), P2 connecting plate (9), C1 connecting plate (10) and C2 connecting plate (13) in installation pedestal (1), wherein be equipped with a plurality of aluminium rows in primary conductor (2), just the aluminium row head end all is equipped with connecting hole (204), P1 connecting plate (16), P2 connecting plate (9), C1 connecting plate (10), C2 connecting plate (13) all are equipped with the portion of bending, just the portion of bending of P1 connecting plate (16), each aluminium row head end of the P1 link of primary conductor (2) and the portion of bending of C1 connecting plate (10) link firmly through first bolt and nut subassembly in proper order, the portion of bending of C2 connecting plate (13), each aluminium row head end of the P2 of primary conductor (2) and the connecting plate of connecting end of P2) pass through the second bolt and nut group (13) and link firmly The piece links firmly in proper order, in addition P1 connecting plate (16) middle part is passed through P1 welt (5) and is linked to each other with P1 conducting rod (4), the inner through a first series-parallel board (15) with C1 connecting plate (10) link to each other, P2 welt (6) and P2 conducting rod (7) are passed through in P2 connecting plate (9) middle part, the inner through a second series-parallel board (14) with C2 connecting plate (13) link to each other, C1 connecting plate (10) inner is equipped with C1 terminal (11), C2 connecting plate (13) inner is equipped with C2 terminal (12), P1 conducting rod (4) outer end stretches out outside installation pedestal (1) and is equipped with P1 terminal (3), P2 conducting rod (7) stretch out outside installation pedestal (1) and are equipped with P2 terminal (8).
2. The aluminum gang series-parallel structure of the dry current transformer as recited in claim 1, wherein: all be equipped with insulating piece (18) between each aluminium row of primary conductor (2) link, P1 connecting plate (16) the portion outside of bending and C2 connecting plate (13) the portion outside of bending all is equipped with first insulation pad (17), C1 connecting plate (10) the portion inboard of bending and P2 connecting plate (9) the portion inboard of bending all is equipped with second insulation pad (19).
3. The aluminum gang series-parallel structure of the dry current transformer as recited in claim 2, wherein: a third insulating pad (20) is arranged between one side of the aluminum row and the adjacent connecting plate, and a fourth insulating pad (21) is arranged between the other side of the aluminum row and the adjacent connecting plate.
4. The aluminum gang series-parallel structure of the dry current transformer as recited in claim 1, wherein: the P1 connecting plate (16) and the C1 connecting plate (10) are arranged in the mounting base body (1) in parallel, and the P2 connecting plate (9) and the C2 connecting plate (13) are arranged in the mounting base body (1) in parallel.
5. The aluminum gang series-parallel structure of the dry current transformer as recited in claim 1, wherein: the primary conductor (2) comprises a conductor outer tube (201) and a plurality of aluminum rows arranged in the conductor outer tube (201).
6. The aluminum gang series-parallel structure of the dry current transformer as recited in claim 1, wherein: installation pedestal (1) includes shield cover (103), insulating bottom plate (102) and voltage-sharing cover (101), and two voltage-sharing covers (101) set firmly respectively in insulating bottom plate (102) both ends downside, and insulating bottom plate (102) upside is located in shield cover (103), and pass again after corresponding side voltage-sharing cover (101) respectively in primary conductor (2) both ends insulating bottom plate (102) enter into in installation pedestal (1), P1 connecting plate (16), P2 connecting plate (9), C1 connecting plate (10), C2 connecting plate (13) are all located on insulating bottom plate (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122828792.XU CN216487670U (en) | 2021-11-18 | 2021-11-18 | Aluminum row type series-parallel connection structure of dry current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122828792.XU CN216487670U (en) | 2021-11-18 | 2021-11-18 | Aluminum row type series-parallel connection structure of dry current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216487670U true CN216487670U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122828792.XU Active CN216487670U (en) | 2021-11-18 | 2021-11-18 | Aluminum row type series-parallel connection structure of dry current transformer |
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|---|---|
| CN (1) | CN216487670U (en) |
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2021
- 2021-11-18 CN CN202122828792.XU patent/CN216487670U/en active Active
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