CN209766175U - High-sensitivity current transformer - Google Patents
High-sensitivity current transformer Download PDFInfo
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- CN209766175U CN209766175U CN201920584212.7U CN201920584212U CN209766175U CN 209766175 U CN209766175 U CN 209766175U CN 201920584212 U CN201920584212 U CN 201920584212U CN 209766175 U CN209766175 U CN 209766175U
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Abstract
The utility model relates to the technical field of power accessory accessories, in particular to a high-sensitivity current transformer which can be convenient for mounting and dismounting an upper shell and a lower shell; the winding comprises an upper shell, a lower shell and two groups of windings, wherein an upper annular inner cavity and a lower annular inner cavity are respectively arranged in the upper shell and the lower shell; still include the backup pad, the fixed plate, the connecting plate, the fixed pin, the support, the diaphragm, the dwang, the carousel, the baffle, spring and screens piece, fixed plate left side wall central zone is provided with the fixed slot, lateral wall right half region is provided with the perforating hole before the connecting plate, support top central zone is provided with the screens groove, screens inslot lateral wall lower half region is provided with the ring channel, support top right half region is provided with the connecting hole, diaphragm top central zone vertically is provided with flexible hole, baffle top central zone vertically is provided with the rotation hole, be provided with ball bearing between dwang and the screens inslot lateral wall.
Description
Technical Field
The utility model relates to a technical field of power accessory auxiliary device especially relates to a high sensitivity current transformer.
Background
As is well known, a high-sensitivity current transformer is an auxiliary device for converting a sequential current with a large value into a secondary current with a small value through a certain transformation ratio for protection and measurement, and is widely used in the field of power accessories; the existing high-sensitivity current transformer comprises an upper shell, a lower shell and two groups of windings, wherein an upper annular inner cavity and a lower annular inner cavity are respectively arranged in the upper shell and the lower shell, and the two groups of windings are respectively arranged in the upper annular inner cavity and the lower annular inner cavity; when the existing high-sensitivity current transformer is used, the upper shell and the lower shell are fixed through bolts, so that the current transformer can work; the existing high-sensitivity current transformer is found in use, when two groups of windings need to be replaced, the upper shell and the lower shell are complex to install and disassemble, and the use convenience is poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a can be convenient for install and dismantle last casing and lower casing, improve the high sensitivity current transformer of convenience in use.
The utility model discloses a high-sensitivity current transformer, which comprises an upper shell, a lower shell and two groups of windings, wherein the upper shell and the lower shell are internally provided with an upper annular inner cavity and a lower annular inner cavity respectively, and the two groups of windings are arranged in the upper annular inner cavity and the lower annular inner cavity respectively; the support plate comprises a support plate, a fixing plate, a connecting plate, a fixing pin, a support, a transverse plate, a rotating rod, a rotating disc, a baffle plate, a spring and a clamping block, wherein the left end of the support plate is connected with the upper half area of the right side wall of the lower shell, the bottom end of the fixing plate is connected with the right half area of the top end of the support plate, the central area of the left side wall of the fixing plate is provided with a fixing groove, the fixing groove is communicated with the top end and the bottom end of the fixing plate, the left end of the connecting plate is connected with the lower half area of the right side wall of the upper shell, the right end of the connecting plate extends into the fixing groove, the right half area of the front side wall of the connecting plate is provided with a through hole, the front end of the fixing pin is connected with the central area of the front side wall in the fixing groove, the rear end, support top right side is regional to be provided with the connecting hole, the connecting hole communicates with screens groove and ring channel respectively, diaphragm right-hand member and last casing left side wall lower half regional connection, diaphragm top central zone vertically is provided with flexible hole, the spring top is connected with baffle bottom central zone, and the spring bottom is connected with diaphragm top central zone, baffle top central zone vertically is provided with the rotation hole, dwang top and carousel bottom central zone are connected, and the dwang bottom passes rotation hole, spring and flexible hole in proper order and stretches into to the screens inslot, is provided with ball bearing between dwang and the screens inslot wall, screens piece left end is connected with dwang right side wall lower half regional.
The utility model discloses a high sensitivity current transformer still includes the bottom plate, bottom plate top and lower casing bottom central authorities are regional to be connected.
The utility model discloses a high sensitivity current transformer still includes left mounting panel, right mounting panel, left bolt and right bolt, left side mounting panel right-hand member and right mounting panel left end are connected with bottom plate left side wall and right side wall second region respectively, and left side mounting panel and right mounting panel top central authorities are regional vertically to be provided with left screw hole and right screw hole respectively, left side bolt and right bolt bottom spiral shell dress pass left screw hole and right screw hole respectively.
The utility model discloses a high sensitivity current transformer still includes the slipmat, the slipmat is installed in bottom plate bottom central authorities region.
The utility model discloses a high sensitivity current transformer still includes the crank, the crank bottom is connected with the left half regional on carousel top.
The utility model discloses a high sensitivity current transformer still includes the pull ring, the pull ring bottom is connected with last casing top central authorities region.
The utility model discloses a high sensitivity current transformer, the pull ring outside is provided with the rubber protection pad.
The utility model discloses a high sensitivity current transformer, the volume of screens piece slightly is less than the size of connecting hole.
Compared with the prior art, the beneficial effects of the utility model are that: the connecting plate and the supporting plate are respectively connected with the upper shell and the lower shell, the outer side wall of the fixing pin is in smooth contact with the inner side wall of the through hole, so that the connecting plate can rotate by taking the fixing pin as an axis, further the upper shell can rotate by taking the fixing pin as an axis, when the bottom end of the upper shell is in contact with the top end of the lower shell, the telescopic hole is aligned with the clamping groove, the rotating rod can rotate in the rotating hole under the action of the ball bearing, firstly, the clamping block is rotated to the left end of the rotating rod, the baffle is pressed downwards, the baffle compresses the spring downwards, further, the clamping block penetrates through the connecting hole and extends into the annular groove, then, the rotating rod is rotated, the clamping block is rotated to the right side of the rotating rod, then, the pressure on the baffle is released, the baffle moves upwards under the action of elastic deformation recovery of the spring, at the moment, the, and then can realize the installation to last casing and lower casing, when dismantling last casing and lower casing, at first rotatory dwang, rotate the left side of dwang to the screens piece, make the screens piece aim at the connecting hole, the spacing to the screens piece has been removed this moment, and then under the effect that the spring resumes elastic deformation, baffle upward movement's in-process drives dwang and screens piece upward movement, when the spring is in initial condition, the screens piece is located the support top, and then can make last casing and lower casing separation, it can use the fixed pin to rotate as the axle to go up the casing, can be convenient for install and dismantle last casing and lower casing, and convenience in use is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic top view showing the connection of the fixing plate, the fixing pin and the connecting plate;
FIG. 3 is a schematic top view of the structure of the pedestal;
FIG. 4 is an enlarged view of a portion of FIG. 1;
In the drawings, the reference numbers: 1. an upper housing; 2. a lower housing; 3. a winding; 4. a support plate; 5. a fixing plate; 6. a connecting plate; 7. a fixing pin; 8. a support; 9. a transverse plate; 10. rotating the rod; 11. a turntable; 12. a baffle plate; 13. a spring; 14. a bit block; 15. fixing grooves; 16. connecting holes; 17. a ball bearing; 18. a base plate; 19. a left mounting plate; 20. a right mounting plate; 21. a left bolt; 22. a right bolt; 23. a non-slip mat; 24. a crank; 25. a pull ring; 26. a rubber protection pad.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 4, the high-sensitivity current transformer of the present invention comprises an upper casing 1, a lower casing 2 and two sets of windings 3, wherein the upper casing 1 and the lower casing 2 are respectively provided with an upper annular inner cavity and a lower annular inner cavity, and the two sets of windings 3 are respectively installed in the upper annular inner cavity and the lower annular inner cavity; the device also comprises a supporting plate 4, a fixing plate 5, a connecting plate 6, a fixing pin 7, a support 8, a transverse plate 9, a rotating rod 10, a rotating disc 11, a baffle plate 12, a spring 13 and a clamping block 14, wherein the left end of the supporting plate 4 is connected with the upper half area of the right side wall of the lower shell 2, the bottom end of the fixing plate 5 is connected with the right half area of the top end of the supporting plate 4, the central area of the left side wall of the fixing plate 5 is provided with a fixing groove 15, the fixing groove 15 is communicated with the top end and the bottom end of the fixing plate 5, the left end of the connecting plate 6 is connected with the lower half area of the right side wall of the upper shell 1, the right end of the connecting plate 6 extends into the fixing groove 15, the right half area of the front side wall of the connecting plate 6 is provided with a through hole, the front end of the fixing pin 7 is connected with the central area, the lower half area of the inner side wall of the clamping groove is provided with an annular groove, the right half area of the top end of the support 8 is provided with a connecting hole 16, the connecting hole 16 is respectively communicated with the clamping groove and the annular groove, the right end of the transverse plate 9 is connected with the lower half area of the left side wall of the upper shell 1, the central area of the top end of the transverse plate 9 is longitudinally provided with a telescopic hole, the top end of the spring 13 is connected with the central area of the bottom end of the baffle plate 12, the bottom end of the spring 13 is connected with the central area of the top end of the transverse plate 9, the central area of the top end of the baffle plate 12 is longitudinally provided with a rotating hole, the top end of the rotating rod 10 is connected with the central area of the bottom end of the rotating disk 11, the bottom end of the rotating rod; the connecting plate and the supporting plate are respectively connected with the upper shell and the lower shell, the outer side wall of the fixing pin is in smooth contact with the inner side wall of the through hole, so that the connecting plate can rotate by taking the fixing pin as an axis, further the upper shell can rotate by taking the fixing pin as an axis, when the bottom end of the upper shell is in contact with the top end of the lower shell, the telescopic hole is aligned with the clamping groove, the rotating rod can rotate in the rotating hole under the action of the ball bearing, firstly, the clamping block is rotated to the left end of the rotating rod, the baffle is pressed downwards, the baffle compresses the spring downwards, further, the clamping block penetrates through the connecting hole and extends into the annular groove, then, the rotating rod is rotated, the clamping block is rotated to the right side of the rotating rod, then, the pressure on the baffle is released, the baffle moves upwards under the action of elastic deformation recovery of the spring, at the moment, the, and then can realize the installation to last casing and lower casing, when dismantling last casing and lower casing, at first rotatory dwang, rotate the left side of dwang to the screens piece, make the screens piece aim at the connecting hole, the spacing to the screens piece has been removed this moment, and then under the effect that the spring resumes elastic deformation, baffle upward movement's in-process drives dwang and screens piece upward movement, when the spring is in initial condition, the screens piece is located the support top, and then can make last casing and lower casing separation, it can use the fixed pin to rotate as the axle to go up the casing, can be convenient for install and dismantle last casing and lower casing, and convenience in use is improved.
The utility model discloses a high sensitivity current transformer, which also comprises a bottom plate 18, wherein the top end of the bottom plate 18 is connected with the central area of the bottom end of the lower shell 2; the bottom plate can play the effect of support to the casing down, improves stability in use.
the utility model discloses a high sensitivity current transformer, still include left mounting panel 19, right mounting panel 20, left bolt 21 and right bolt 22, the left mounting panel 19 right-hand member and the right mounting panel 20 left end respectively with 18 left side walls of bottom plate and right side wall lower half regional connections, left threaded hole and right threaded hole are vertically provided with respectively in the central region in left mounting panel 19 and the right mounting panel 20 top, left bolt 21 and right bolt 22 bottom are the spiral shell respectively and are passed left threaded hole and right threaded hole; the left bolt and the right bolt can be convenient for fixing the position of the device, and the use reliability is improved.
The utility model discloses a high sensitivity current transformer, which also comprises an anti-skid pad 23, wherein the anti-skid pad 23 is arranged in the central area of the bottom end of the bottom plate 18; the non-slip mat can be more stable when fixing the position of the device, and the use stability is improved.
The utility model discloses a high sensitivity current transformer, which also comprises a crank 24, wherein the bottom end of the crank 24 is connected with the left half area of the top end of the turntable 11; the staff holds the crank and rotates the carousel, can make the operation more laborsaving, improves the convenience of use.
The high-sensitivity current transformer of the utility model also comprises a pull ring 25, the bottom end of the pull ring 25 is connected with the central area of the top end of the upper shell 1; can be convenient for remove the device through the pull ring, improve and use the flexibility.
In the high-sensitivity current transformer of the utility model, a rubber protection pad 26 is arranged outside the pull ring 25; the rubber protection pad can protect the palm of the worker, and the use safety is improved.
In the high-sensitivity current transformer of the utility model, the volume of the clamping block 14 is slightly smaller than the size of the connecting hole 16; the size of the clamping block is slightly smaller than the size of the connecting hole, so that the stability of the upper shell and the lower shell in a closed state can be enhanced.
The utility model discloses a high sensitivity current transformer, it is at work, connecting plate and backup pad are connected with last casing and lower casing respectively, the fixed pin lateral wall smoothly contacts with the perforating hole inside wall, make the connecting plate can use the fixed pin as the axle and rotate, and then make the upper casing can use the fixed pin as the axle and rotate, when the upper casing bottom contacts with lower casing top, the flexible hole aligns with the screens groove, the dwang can rotate in the rotation hole under the effect of ball bearing, at first rotate screens piece to the dwang left end, press down the baffle, the baffle compresses the spring downwards, and then make screens piece pass from the connecting hole and stretch into the ring channel, later rotate the dwang, make screens piece rotate to the right side of dwang, later loosen the pressure to the baffle, the baffle upwards moves under the effect that the spring resumes elastic deformation, the ring channel inside top lateral wall plays spacing effect to screens piece at this moment, when the upper shell and the lower shell are disassembled, the rotating rod is firstly rotated, the clamping block is rotated to the left side of the rotating rod, the clamping block is aligned to the connecting hole, the limitation on the clamping block is relieved, the rotating rod and the clamping block are driven to move upwards in the upward movement process of the baffle under the action of elastic deformation recovery of the spring, when the spring is in an initial state, the clamping block is positioned above the support, the upper shell and the lower shell can be separated, the upper shell can rotate by taking the fixing pin as the shaft, the upper shell and the lower shell can be conveniently assembled and disassembled, and the use convenience is improved; the bottom plate can support the lower shell, so that the use stability is improved; the left bolt and the right bolt can be used for conveniently fixing the position of the device, so that the use reliability is improved; the anti-slip pad can ensure that the position of the device is more stable when being fixed, and the use stability is improved; the operator holds the crank to rotate the turntable, so that the operation is more labor-saving, and the use convenience is improved; the device can be conveniently moved through the pull ring, so that the use flexibility is improved; the rubber protection pad can protect the palm of a worker, so that the use safety is improved; the size of the clamping block is slightly smaller than the size of the connecting hole, so that the stability of the upper shell and the lower shell in a closed state can be enhanced.
The utility model discloses a high sensitivity current transformer, above the mounting means, the connected mode or the mode that sets up of all parts are common mechanical type to the concrete structure, model and the coefficient index of all its parts are its from taking the technique, as long as can reach all can implementing of its beneficial effect, so do not add at many and give unnecessary details.
In the case where no description is made to the contrary, the directional terms included in the terms "up, down, left, right, front, rear, inside, outside, vertical, horizontal" and the like of the high-sensitivity current transformer of the present invention only represent the direction of the term in the normal use state, or be a trivial term understood by those skilled in the art, and should not be considered as limiting the term, at the same time, the numerical terms "first," "second," and "third," etc. do not denote any particular quantity or order, but rather are used to distinguish one from another, furthermore, 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 also includes other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A high-sensitivity current transformer comprises an upper shell (1), a lower shell (2) and two groups of windings (3), wherein an upper annular inner cavity and a lower annular inner cavity are respectively arranged in the upper shell (1) and the lower shell (2), and the two groups of windings (3) are respectively arranged in the upper annular inner cavity and the lower annular inner cavity; the device is characterized by further comprising a supporting plate (4), a fixing plate (5), a connecting plate (6), a fixing pin (7), a support (8), a transverse plate (9), a rotating rod (10), a rotating disc (11), a baffle plate (12), a spring (13) and a clamping block (14), wherein the left end of the supporting plate (4) is connected with the upper half area of the right side wall of the lower shell (2), the bottom end of the fixing plate (5) is connected with the right half area of the top end of the supporting plate (4), a fixing groove (15) is arranged in the center area of the left side wall of the fixing plate (5), the fixing groove (15) is communicated with the top end and the bottom end of the fixing plate (5), the left end of the connecting plate (6) is connected with the lower half area of the right side wall of the upper shell (1), the right end of the connecting plate (6) extends into the fixing groove (15), a through hole is arranged in the right half area of the front, the rear end of the fixing pin (7) penetrates through the through hole and is connected with the central area of the inner rear side wall of the fixing groove (15), the right end of the support (8) is connected with the upper half area of the left side wall of the lower shell (2), the central area of the top end of the support (8) is provided with a clamping groove, the lower half area of the inner side wall of the clamping groove is provided with an annular groove, the right half area of the top end of the support (8) is provided with a connecting hole (16), the connecting hole (16) is respectively communicated with the clamping groove and the annular groove, the right end of the transverse plate (9) is connected with the lower half area of the left side wall of the upper shell (1), the central area of the top end of the transverse plate (9) is longitudinally provided with a telescopic hole, the top end of the spring (13) is connected with the central area of the bottom end of the baffle plate (12), the bottom end of the spring (13) is, dwang (10) bottom passes rotation hole, spring (13) and flexible hole in proper order and stretches into to the screens inslot, is provided with ball bearing (17) between dwang (10) and the screens inslot wall, screens piece (14) left end and dwang (10) right side wall lower half regional connection.
2. a high sensitivity current transformer according to claim 1, further comprising a bottom plate (18), wherein the top end of the bottom plate (18) is connected to the central region of the bottom end of the lower case (2).
3. The high-sensitivity current transformer according to claim 2, further comprising a left mounting plate (19), a right mounting plate (20), a left bolt (21) and a right bolt (22), wherein the right end of the left mounting plate (19) and the left end of the right mounting plate (20) are respectively connected with the lower half area of the left side wall and the lower half area of the right side wall of the bottom plate (18), the central areas of the top ends of the left mounting plate (19) and the right mounting plate (20) are respectively and longitudinally provided with a left threaded hole and a right threaded hole, and the bottom ends of the left bolt (21) and the right bolt (22) are respectively screwed and penetrate through the left threaded hole and the right threaded hole.
4. A high-sensitivity current transformer according to claim 3, characterized by further comprising a non-slip mat (23), said non-slip mat (23) being mounted to the bottom central region of the bottom plate (18).
5. A high-sensitivity current transformer according to claim 4, characterized by further comprising a crank (24), wherein the bottom end of the crank (24) is connected with the left half area of the top end of the rotary table (11).
6. A high sensitivity current transformer according to claim 5, further comprising a pull ring (25), wherein a bottom end of the pull ring (25) is connected to a central region of a top end of the upper case (1).
7. A high-sensitivity current transformer according to claim 6, characterized in that a rubber protection pad (26) is provided outside the pull ring (25).
8. The high-sensitivity current transformer as claimed in claim 7, wherein the volume of the catch block (14) is slightly smaller than the size of the connection hole (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920584212.7U CN209766175U (en) | 2019-04-26 | 2019-04-26 | High-sensitivity current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920584212.7U CN209766175U (en) | 2019-04-26 | 2019-04-26 | High-sensitivity current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209766175U true CN209766175U (en) | 2019-12-10 |
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ID=68760638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920584212.7U Active CN209766175U (en) | 2019-04-26 | 2019-04-26 | High-sensitivity current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209766175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433372A (en) * | 2021-06-24 | 2021-09-24 | 邹婕 | Non-contact current detection device of building fire-fighting equipment |
-
2019
- 2019-04-26 CN CN201920584212.7U patent/CN209766175U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433372A (en) * | 2021-06-24 | 2021-09-24 | 邹婕 | Non-contact current detection device of building fire-fighting equipment |
| CN113433372B (en) * | 2021-06-24 | 2022-06-10 | 邹婕 | Non-contact current detection device of building fire-fighting equipment |
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Address after: 071000 Xiong Zhou Zhen Ya Gu Cheng Cun, Xiong County, Baoding City, Hebei Province Patentee after: Hebei Zhongkai Mingtai Electric Power Technology Co.,Ltd. Address before: 071000 Xiong Zhou Zhen Ya Gu Cheng Cun, Xiong County, Baoding City, Hebei Province Patentee before: HEBEI ZHONGKAIMINGTAI ELECTRIC EQUIPMENT CO.,LTD. |