CN220731323U - Built-in open-circuit-preventing aviation socket current transformer - Google Patents
Built-in open-circuit-preventing aviation socket current transformer Download PDFInfo
- Publication number
- CN220731323U CN220731323U CN202321577737.0U CN202321577737U CN220731323U CN 220731323 U CN220731323 U CN 220731323U CN 202321577737 U CN202321577737 U CN 202321577737U CN 220731323 U CN220731323 U CN 220731323U
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- circuit
- pole
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- connecting plate
- jack
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- 238000004804 winding Methods 0.000 claims abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000428 dust Substances 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Transformers For Measuring Instruments (AREA)
Abstract
The utility model relates to a current transformer, in particular to a built-in open-circuit-preventing aviation socket current transformer, which comprises a shell, an iron core and a base, wherein an aviation plug base is arranged on the base, the aviation plug base is positioned on one side of the shell, a cavity is arranged in the aviation plug base, an anode jack, a cathode jack and a push rod jack are arranged in the cavity, two pole fixing seats are arranged at the bottom of the cavity, a positive pole and a cathode pole are arranged on the pole fixing seats, a chute is arranged at the top of the cavity, a connecting plate is arranged in the chute, a conductive rod is arranged at the bottom of the connecting plate, an arc-shaped groove is arranged on one side of the pole fixing seat, one end of the connecting plate is connected with a push rod, the other end of the connecting plate is connected with a spring, and when the aviation plug base is separated from measuring equipment, the conductive rod is connected with the arc-shaped groove on the pole fixing seat under the action of the push rod, so that a secondary winding circuit forms a short circuit, and the secondary winding is prevented from forming an open circuit, and the high-voltage transformer shell is damaged to the power distribution equipment.
Description
Technical Field
The utility model relates to a current transformer, in particular to a built-in open-circuit-preventing aviation socket current transformer.
Background
The current transformer is an instrument for converting primary side large current into secondary side small current according to an electromagnetic induction principle to measure, and consists of a closed iron core and a winding. The primary winding turns are very few and are connected in series with the circuit of the current to be measured, so that the current is always flowing through the circuit, the secondary winding turns are relatively large and are connected in series with the measuring instrument and the protection circuit, and the secondary circuit is always closed when the current transformer works, so that the impedance of the series coil of the measuring instrument and the protection circuit is very small, the working state of the current transformer is close to short circuit, and the current transformer converts the primary large current into the secondary small current for measurement, and the secondary side cannot be opened.
The patent number 2023202234323 discloses a current transformer convenient to installation, and this kind of mutual-inductor is similar with traditional terminal type current transformer structure, and secondary outgoing line terminal is through terminal row connection, occupation space is great, and it causes the open circuit to become flexible easily to destroy the mutual-inductor, serious condition still can cause the injury to operating personnel.
Disclosure of Invention
The utility model aims to solve the technical problems mentioned in the background art and provides the following technical scheme:
the utility model provides an built-in aviation socket current transformer of preventing opening a way, includes casing, iron core and base, the casing is hollow structure, and iron core fixed mounting is in the casing, iron core one side is around there being the secondary winding, set up first through-hole in the middle of the casing, casing fixed mounting is in on the base, be provided with circuit groove, anodal circuit hole and negative pole circuit hole in the base, anodal circuit hole is located secondary winding left side below, anodal circuit hole with circuit groove intercommunication, the negative pole circuit hole is located secondary winding right side below, negative pole circuit hole with circuit groove intercommunication.
The base is provided with an aviation plug base, the aviation plug base is positioned on one side of the shell, a cavity is arranged in the aviation plug base, a second through hole is arranged at the bottom of the cavity, the second through hole is communicated with the circuit groove, a positive pole jack, a negative pole jack and a push rod jack are respectively arranged on one side of the cavity, two pole fixing seats are fixedly arranged at the bottom of the cavity, the positions of the two pole fixing seats correspond to the positions of the positive pole jack and the negative pole jack, the pole fixing seats are conductors, a positive pole and a negative pole are respectively fixedly arranged on one side of the two pole fixing seats, one end of the positive pole penetrates through the positive pole jack to be communicated with the outside, one end of the negative pole penetrates through the negative pole jack to be communicated with the outside, a sliding groove is formed in the top of the cavity, the sliding connection has the connecting plate in the spout, connecting plate bottom one side sets up the conducting rod, two pole fixing base one side sets up the arc wall, arc wall position, size with conducting rod position, size are corresponding, connecting plate fixedly connected with push rod, push rod one end passes push rod jack and outside intercommunication, connecting plate other end fixed connection spring, spring one end with the connecting plate is fixed, the spring other end is connected with the fixed plate, the fixed plate is fixed the cavity top, positive pole one end is connected with the positive pole line, positive pole one end with secondary winding one end is connected, negative pole one end is connected with the negative pole line, negative pole one end with the secondary winding other end is connected.
Preferably, a dust cover is fixedly arranged on one side of the aviation plug base.
Preferably, the iron core is made of silicon steel.
Preferably, the top of the shell is provided with a heat dissipation hole
Preferably, the aerial plug base is detachably connected with the base.
The beneficial effects of the utility model are as follows:
1. according to the utility model, the aviation socket is arranged to replace a traditional investigation structure, so that the space occupation is reduced, the device is more reliable, the phenomenon of movement looseness is avoided, and the safety performance is improved.
2. According to the utility model, the push rod, the conductive rod, the spring and the fixing plate are arranged, when the aviation plug base is connected with the measuring equipment, the conductive rod is separated from the pole fixing seat, and when the aviation plug base is separated from the measuring equipment, the conductive rod is connected with the arc-shaped groove on the pole fixing seat under the action of the push rod, so that a secondary winding circuit is short-circuited, the secondary winding is prevented from being broken, and the high-voltage breakdown transformer shell is prevented from damaging the power distribution equipment.
3. Through setting up the seat of inserting with the base and dismantling and be connected, can freely remove the seat of inserting, the installation of the seat of inserting and the check out test set's that is connected with it are convenient for the seat of inserting.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a side view of the present utility model;
FIG. 3 is a cross-sectional view of the structure of the present utility model;
FIG. 4 is an enlarged view of the circle in FIG. 3;
fig. 5 is a cross-sectional view of the structure of the present utility model in the second embodiment.
In the figure: 1. a housing; 1-1, a first through hole; 2. an iron core; 3. a base; 3-1, a line groove; 3-2, an anode circuit hole; 3-3, a negative electrode circuit hole; 4. a secondary winding; 5. an aerial insertion base; 5-1, cavity; 5-2, second through holes; 5-3, positive pole jack; 5-4, a negative electrode jack; 5-5, push rod jacks; 5-6, sliding grooves; 6. a pole fixing seat; 6-1, a positive electrode post; 6-11, positive electrode wire; 6-2, a negative pole column; 6-21, negative electrode wire; 6-3, an arc-shaped groove; 7. a connecting plate; 7-1, a conductive rod; 7-2, pushing rod; 7-3, a spring; 7-4, fixing plates; 8. a dust cover; 9. and the heat dissipation holes.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be understood that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The connection modes described by the terms "fixedly connected", "fixedly arranged" include, but are not limited to, "welded", "riveted", "adhered", "screwed". The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus
The terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.
Example 1
Referring to fig. 1-4, an internally-arranged open-circuit-preventing aviation socket current transformer comprises a shell 1, an iron core 2 and a base 3, and is characterized in that the shell 1 is of a hollow structure, the iron core 2 is fixedly installed in the shell 1, one side of the iron core 2 is wound around a secondary winding 4, a first through hole 1-1 is formed in the middle of the shell 1, the shell 1 is fixedly installed on the base 3, a circuit slot 3-1, a positive circuit hole 3-2 and a negative circuit hole 3-3 are formed in the base 3, the positive circuit hole 3-2 is located below the left side of the secondary winding 4, the positive circuit hole 3-2 is communicated with the circuit slot 3-1, the negative circuit hole 3-3 is located below the right side of the secondary winding 4, and the negative circuit hole 3-3 is communicated with the circuit slot 3-1.
The base 3 is provided with an aviation plug base 5, the aviation plug base 5 is positioned on one side of the shell 1, a cavity 5-1 is arranged in the aviation plug base 5, a second through hole 5-2 is arranged at the bottom of the cavity 5-1, the second through hole 5-2 is communicated with the line groove 3-1, one side of the cavity 5-1 is respectively provided with a positive pole jack 5-3, a negative pole jack 5-4 and a push rod jack 5-5, the bottom of the cavity 5-1 is fixedly provided with two pole fixing seats 6, the positions of the two pole fixing seats 6 correspond to the positions of the positive pole jack 5-3 and the negative pole jack 5-4, the pole fixing seats 6 are conductors, one side of each of the two pole fixing seats 6 is fixedly provided with a positive pole 6-1 and a negative pole 6-2, one end of each of the positive pole 6-1 passes through the positive pole jack 5-3 to be communicated with the outside, one end of the negative pole column 6-2 passes through the negative pole jack 5-4 to be communicated with the outside, a chute 5-6 is arranged at the top of the cavity 5-1, a connecting plate 7 is connected in the chute 5-6 in a sliding way, a conductive rod 7-1 is arranged at one side of the bottom of the connecting plate 7, an arc-shaped groove 6-3 is arranged at one side of the two pole column fixing seats 6, the position and the size of the arc-shaped groove 6-3 correspond to those of the conductive rod 7-1, the connecting plate 7 is fixedly connected with a push rod 7-2, one end of the push rod 7-2 passes through the push rod jack 5-5 to be communicated with the outside, the other end of the connecting plate 7 is fixedly connected with a spring 7-3, one end of the spring 7-3 is fixed with the connecting plate, the other end of the spring 7-3 is connected with a fixing plate 7-4, and the fixing plate 7-4 is fixed at the top of the cavity 5-1, one end of the positive pole column 6-1 is connected with the positive pole line 6-11, one end of the positive pole line 6-11 is connected with one end of the secondary winding 4, one end of the negative pole column 6-2 is connected with the negative pole line 6-21, and one end of the negative pole line 6-21 is connected with the other end of the secondary winding 4.
Preferably, a dust cover 8 is fixedly arranged on one side of the aviation plug base 5.
Preferably, the iron core 2 is made of silicon steel.
Preferably, the top of the housing 1 is provided with a heat dissipation hole 9.
In actual operation, S1, when the current transformer is installed, the base 3 is fixed in the power distribution cabinet, the measuring circuit passes through the first through hole 1-1, then the measuring equipment is connected with the aviation plug base 5, the push rod 7-2 is pushed towards the aviation plug base 5 at the moment, the push rod 7-2 pushes the connecting plate 7 to overcome the elastic force of the spring 7-3 to move, and the conductive rod 7-1 positioned at the bottom of the connecting plate 7 is separated from the arc-shaped groove 6-3 on the spine fixing seat 6. The secondary winding 4 forms a closed circuit with the measuring device at this point.
S2, when the measuring equipment is replaced, the measuring equipment is separated from the aviation plug base 5, at the moment, the push rod 7-2 and the connecting plate 7 move under the action of elastic potential energy of the spring 7-3, the conductive rod 7-1 positioned at the bottom of the connecting plate 7 is connected with the arc-shaped groove 6-3 on the pole fixing seat 6, and the secondary winding 4 forms a short circuit.
Example two
Referring to fig. 5, the present embodiment is different from the first embodiment in that the socket base 5 is detachably connected to the base 3, and the connection manner includes, but is not limited to, a snap connection, a threaded connection, and the like.
In actual operation, the worker can detach the avionics base 5 from the base 3, and install the avionics base 5 on the electrical cabinet according to actual conditions.
Claims (5)
1. The utility model provides a built-in aviation socket current transformer that prevents opening a way, includes casing (1), iron core (2) and base (3), its characterized in that, casing (1) is hollow structure, and iron core (2) fixed mounting is in casing (1), iron core (2) one side is around there being secondary winding (4), set up first through-hole (1-1) in the middle of casing (1), casing (1) fixed mounting is in on base (3), be provided with circuit slot (3-1), positive pole circuit hole (3-2) and negative pole circuit hole (3-3) in base (3), positive pole circuit hole (3-2) are located secondary winding (4) left side below, positive pole circuit hole (3-2) with circuit slot (3-1) intercommunication, negative pole circuit hole (3-3) are located secondary winding (4) right side below, negative pole circuit hole (3-3) with circuit slot (3-1) intercommunication;
the utility model discloses a battery pack, including casing (1) and pole fixing seat (6), base (3) are last to be provided with avionics socket (5), avionics socket (5) are located casing (1) one side, be provided with cavity (5-1) in avionics socket (5), cavity (5-1) bottom is provided with second through-hole (5-2), second through-hole (5-2) with circuit groove (3-1) intercommunication, cavity (5-1) one side sets up anodal jack (5-3) respectively, negative pole jack (5-4) and push rod jack (5-5), cavity (5-1) bottom is fixed to be provided with two pole fixing bases (6), two pole fixing bases (6) position with anodal jack (5-3) and negative pole jack (5-4) position are corresponding, pole fixing base (6) are the conductor, two pole fixing bases (6) one side are fixed respectively and are provided with anodal post (6-1) and negative pole (6-2), anodal post (6-1) one end is passed through anodal jack (5-3) and negative pole jack (5-5), anodal post (6-1) one end is passed through 5-1) and outside (5-4) is passed through to be connected with outside (5-5), the sliding chute (5-6) is internally and slidably connected with a connecting plate (7), one side of the bottom of the connecting plate (7) is provided with a conductive rod (7-1), one side of the two pole fixing seats (6) is provided with an arc-shaped groove (6-3), the position and the size of the arc-shaped groove (6-3) correspond to those of the conductive rod (7-1), the connecting plate (7) is fixedly connected with a push rod (7-2), one end of the push rod (7-2) passes through the push rod jack (5-5) to be communicated with the outside, the other end of the connecting plate (7) is fixedly connected with a spring (7-3), the utility model discloses a motor, including connecting plate, cavity (5-1), positive column (6-1), negative pole post (6-2), connecting plate, spring (7-3) one end with the connecting plate is fixed, the spring (7-3) other end is connected with fixed plate (7-4), fixed plate (7-4) are fixed cavity (5-1) top, positive pole line (6-11) are connected to positive pole post (6-1) one end, positive pole line (6-11) one end with secondary winding (4) one end is connected, negative pole line (6-21) are connected to negative pole post (6-2) one end, negative pole line (6-21) one end with secondary winding (4) other end is connected.
2. The built-in open-circuit-preventing aviation socket current transformer according to claim 1, wherein a dust cover (8) is fixedly arranged on one side of the aviation plug base (5).
3. The built-in open-circuit-preventing aviation socket current transformer according to claim 1, wherein the iron core (2) is made of silicon steel.
4. The built-in open-circuit-preventing aviation socket current transformer according to claim 1, wherein a heat dissipation hole (9) is formed in the top of the shell (1).
5. A built-in open circuit preventing aviation socket current transformer according to claim 1, characterized in that the aviation plug base (5) is detachably connected with the base (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321577737.0U CN220731323U (en) | 2023-06-20 | 2023-06-20 | Built-in open-circuit-preventing aviation socket current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321577737.0U CN220731323U (en) | 2023-06-20 | 2023-06-20 | Built-in open-circuit-preventing aviation socket current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220731323U true CN220731323U (en) | 2024-04-05 |
Family
ID=90499233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321577737.0U Active CN220731323U (en) | 2023-06-20 | 2023-06-20 | Built-in open-circuit-preventing aviation socket current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220731323U (en) |
-
2023
- 2023-06-20 CN CN202321577737.0U patent/CN220731323U/en active Active
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