CN111276324A

CN111276324A - Small mutual inductor

Info

Publication number: CN111276324A
Application number: CN202010062074.3A
Authority: CN
Inventors: 不公告发明人
Original assignee: 孙逸民
Current assignee: Hunan nengchuang Technology Co.,Ltd.
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-06-12
Anticipated expiration: 2040-01-20
Also published as: CN111276324B

Abstract

The invention discloses a small mutual inductor which comprises a supporting seat, wherein a connecting groove is formed in the upper surface of the supporting seat, a damping rotating shaft is connected in the connecting groove, a rotary table is connected to the outer side key of the damping rotating shaft, and a clamping block is fixedly connected to the rotary table. The fixture block is clamped on the groove, the groove is formed in the corner of the connecting ring, the connecting ring is fixedly connected to the lower surface of the outer cover, and the cover ring is nested on the outer side of the outer cover. This small-size mutual-inductor can be convenient for adjust first coil and second coil number ratio, thereby can make this small-size mutual-inductor can be applicable to in the multiple condition, avoided in the past because the number of turns ratio of first coil and second coil is invariable and has caused the restrictive nature of its use in the small-size mutual-inductor, and can be convenient for dismantle and install, thereby can be convenient for overhaul and maintain, avoided small-size mutual-inductor in the past, it uses the bolt to fix, and cause long-time use back, the bolt corrodes and the problem of be not convenient for dismantle and installation.

Description

Small mutual inductor

Technical Field

The invention relates to the technical field of mutual inductors, in particular to a small mutual inductor.

Background

The mutual inductor is a transformer, and comprises a current mutual inductor and a voltage mutual inductor, wherein the mutual inductor can change high voltage into low voltage or large current into small current for measuring or protecting a system, and when the mutual inductor is used, the mutual inductor can change the high voltage into the low voltage so as to be conveniently connected with measuring instrument equipment, so that the measuring instrument equipment is prevented from being burnt out by overhigh voltage, and the mutual inductor can isolate the high voltage, thereby being beneficial to ensuring the personal safety of a user.

However, the existing small-sized mutual inductor is inconvenient for adjusting the ratio between the coils, because the coil ratio of the existing small-sized mutual inductor is constant, the existing small-sized mutual inductor only can convert constant high voltage into constant low voltage, if the constant high voltage is higher, even if the constant high voltage is converted into the constant low voltage, the existing small-sized mutual inductor still cannot be detected by using a measuring instrument, so that a worker needs to replace the mutual inductor with other coil ratios for use, the worker needs to carry a plurality of mutual inductors for use, the burden of the worker is caused, the improvement of the working efficiency is not facilitated, the existing small-sized mutual inductor is not beneficial to overhaul and maintenance, because the existing small-sized mutual inductor is generally fixed by using bolts, the mutual inductor with long service time is easy to corrode the bolts on the small-sized mutual inductor, and is not beneficial to screwing out the small-sized mutual inductor, so that, so that it is inconvenient to maintain and overhaul;

in summary, a small-sized transformer has been designed to solve the above problems.

Disclosure of Invention

The invention aims to provide a small-sized mutual inductor, which aims to solve the problems that the conventional small-sized mutual inductor is inconvenient to adjust the ratio between coils and is not beneficial to disassembly and assembly for maintenance and overhaul in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a small mutual inductor comprises a supporting seat, wherein a connecting groove is formed in the upper surface of the supporting seat, a damping rotating shaft is connected in the connecting groove, the outer side of the damping rotating shaft is connected with a rotary table in a key mode, and a clamping block is fixedly connected to the rotary table;

the fixture block is clamped on the groove, the groove is formed in the corner of the connecting ring, the connecting ring is fixedly connected to the lower surface of the outer cover, the cover ring is nested on the outer side of the outer cover, a through groove is formed in the lower portion of the cover ring, and a positioning plate is connected to the inside of the through groove through a reset rotating shaft;

the front side and the rear side of the outer cover are both provided with wiring terminals, through holes are reserved on the front side and the rear side of the outer cover, the through holes are internally connected with an adjusting disc through bearings, a guide groove is arranged below the adjusting disc, and the guide groove is reserved on the inner side of the outer cover;

the utility model discloses a ceramic support seat, including supporting seat, support frame, ceramic rod, conducting strip, compression spring, supporting frame, support frame fixed connection, ceramic rod, compression spring, support frame, ceramic rod, compression spring, support frame, ceramic rod, compression spring, and the like.

Preferably, the upper portion of the cover ring is of an annular structure, the lower portion of the cover ring is of 4 flat quadrangular prisms, the 4 lower portions of the cover ring are vertically arranged, the length of the 4 lower portions of the cover ring is matched with the distance between the axes of the adjacent damping rotating shafts, and the inner side of the cover ring is provided with a limiting hole matched with the upper portion of the fixture block.

Preferably, the rear side surface of the adjusting disc is an inclined plane, and the outer side of the middle part of the adjusting disc is connected with the inner side of the through hole in a bearing connection mode.

Preferably, the connecting groove is convex in structural shape, the corners of the connecting groove are circular structures, and the axis of the circular structures is collinear with the axis of the damping rotating shaft.

Preferably, the groove is in the shape of an open ring, and the width of the groove is matched with the outer diameter of the lower part of the fixture block.

Preferably, the structure shape of the rotating disc is 1/2 circles, the eccentric part of the rotating disc and the fixture block are arranged in an integrated structure, and the upper part of the fixture block is in a prismatic structure.

Preferably, the outside of locating plate is provided with the stopper, and the structural shape of stopper is the right angle triangular prism to stopper and locating plate structure as an organic whole.

Preferably, the first coil and the second coil are wound at opposite positions on the iron core, the end part of each coil close to the support frame is connected with the electrode plate, and the end parts of the first coil and the second coil are connected with corresponding connecting terminals.

Preferably, the outer surface of the support frame is provided with a notch, the inner diameter of the notch is matched with the outer diameter of the conducting strip, and the electrode plate is arranged in the notch.

Compared with the prior art, the invention has the beneficial effects that: this small-size mutual-inductor can be convenient for adjust first coil and second coil number ratio, thereby can make this small-size mutual-inductor can be applicable to in the multiple condition, avoided in the past because the number of turns ratio of first coil and second coil is invariable and has caused the restrictive nature of its use in the small-size mutual-inductor, and can be convenient for dismantle and install, thereby can be convenient for overhaul and maintain, avoided small-size mutual-inductor in the past, it uses the bolt to fix, and cause long-time use back, the bolt corrosion and the problem of be convenient for dismantle and installation not:

1. the small-sized mutual inductor has the advantages that the ceramic rod can be conveniently extruded by rotating the adjusting disc with the inclined plane on the rear side face, so that the conducting strip is gradually close to 2 electrode plates on the supporting frame to be convenient for communicating the electrode plates, the number of turns of the first coil or the second coil can be increased after the electrode plates are communicated, the number ratio of the turns of the first coil to the turns of the second coil can be adjusted, further, the instrument and equipment can be connected to the corresponding wiring terminal for use, the small-sized mutual inductor can be suitable for more conditions by the aid of the first coil and the second coil with the changeable number ratio of the turns, and the use limitation of the small-;

2. go into the recess through the fixture block card, alright install the dustcoat of fixedly connected with go-between on the supporting seat, and go into the spread groove with the cover ring card through the locating plate, can not only fix the locating plate in the spread groove through the stopper in the locating plate outside, and can pass through the location of cover ring lower part to the carousel, the restriction carousel rotates, thereby can guarantee the stable card of fixture block in the recess, so that the dustcoat is stable installs on the supporting seat, and then can be convenient for dismouting dustcoat, so as to overhaul and maintain, the connected mode of bolt in the past has been avoided, because the corruption of bolt, cause the problem that this small-size mutual inductor is not convenient for overhaul and maintain.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of a partial main sectional connection structure of the support base and the housing according to the present invention;

FIG. 3 is an enlarged view of point A of FIG. 2 according to the present invention;

FIG. 4 is a schematic top view of the supporting base of the present invention;

FIG. 5 is a schematic view of the inside cross-sectional structure of the cover ring of the present invention;

FIG. 6 is a schematic cross-sectional view of the inside of the housing of the present invention;

FIG. 7 is a schematic view of a connection structure of the iron core with the first coil and the second coil according to the present invention;

FIG. 8 is an enlarged view of point B of FIG. 7 according to the present invention;

fig. 9 is a schematic view of a connection structure of the support frame and the iron core according to the present invention.

In the figure: 1. a supporting seat; 2. a housing; 3. a cover ring; 4. a through hole; 5. an adjusting disk; 6. a wiring terminal; 7. a guide groove; 8. a connecting ring; 9. connecting grooves; 10. a groove; 11. a clamping block; 12. a turntable; 13. positioning a plate; 14. a damping rotating shaft; 15. resetting the rotating shaft; 16. a through groove; 17. an iron core; 18. a first coil; 19. a second coil; 20. a support frame; 21. a ceramic rod; 22. a conductive sheet; 23. a slot; 24. a compression spring; 25. an electrode sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a technical solution: a small-sized mutual inductor comprises a supporting seat 1, an outer cover 2, a cover ring 3, a through hole 4, an adjusting disc 5, a wiring terminal 6, a guide groove 7, a connecting ring 8, a connecting groove 9, a groove 10, a clamping block 11, a rotary disc 12, a positioning plate 13, a damping rotary shaft 14, a reset rotary shaft 15, a through groove 16, an iron core 17, a first coil 18, a second coil 19, a supporting frame 20, a ceramic rod 21, a conducting strip 22, a slotted hole 23, a compression spring 24 and an electrode plate 25, wherein the connecting groove 9 is formed in the upper surface of the supporting seat 1, the damping rotary shaft 14 is connected in the connecting groove 9, the rotary disc 12 is connected with the outer side key of the damping rotary;

the fixture block 11 is clamped on the groove 10, the groove 10 is formed in the corner of the connecting ring 8, the connecting ring 8 is fixedly connected to the lower surface of the outer cover 2, the cover ring 3 is nested on the outer side of the outer cover 2, a through groove 16 is formed in the lower portion of the cover ring 3, and a positioning plate 13 is connected to the inside of the through groove 16 through a reset rotating shaft 15;

the front side and the rear side of the outer cover 2 are both provided with wiring terminals 6, through holes 4 are reserved on the front side and the rear side of the outer cover 2, the through holes 4 are internally connected with an adjusting disc 5 through bearings, a guide groove 7 is arranged below the adjusting disc 5, and the guide groove 7 is reserved on the inner side of the outer cover 2;

the upper surface mounting of supporting seat 1 has iron core 17, and the winding has first coil 18 and second coil 19 on the iron core 17, all be provided with support frame 20 between first coil 18 and between the second coil 19, and support frame 20 fixed connection is on iron core 17, it has ceramic rod 21 to run through on the support frame 20, and the upper portion outside of ceramic rod 21 is fixed with conducting strip 22, be provided with electrode slice 25 in the support frame 20, and be connected with first coil 18 or second coil 19 on the electrode slice 25, the lower extreme of ceramic rod 21 stretches into in the slotted hole 23, and the inboard of slotted hole 23 and the outside of ceramic rod 21 be fixed connection in compression spring 24's both ends respectively, and slotted hole 23 sets up on iron core 17.

The upper portion of cover ring 3 is the loop configuration, and the lower part of cover ring 3 is 4 flat quadrangular prism shapes, and 4 substructure of cover ring 3 is perpendicular setting, the length of 4 substructure of cover ring 3 is identical with the distance between the 14 axes of adjacent damping pivot simultaneously, the inboard of cover ring 3 is provided with the spacing hole anastomotic with fixture block 11 upper portion, can be convenient for cover ring 3 moves about in the outside of dustcoat 2, and can be convenient for the lower extreme card of cover ring 3 to go into spread groove 9, and can be convenient for go into between carousel 12 with the lower extreme card of cover ring 3, rotate with restriction carousel 12.

The rear side surface of the adjusting disc 5 is an inclined plane, and the outer side of the middle part of the adjusting disc is connected with the inner side of the through hole 4 in a bearing connection mode, so that when the adjusting disc 5 rotates, the inclined plane of the rear side surface of the adjusting disc can continuously press the ceramic rod 21, and the conducting strip 22 on the ceramic rod 21 can conveniently connect the electrode plate 25.

The structural shape of connecting groove 9 is convex, and the corner of connecting groove 9 is circular structure to the axis of this circular structure and the axis collineation of damping pivot 14, the stopper card on the locating plate 13 of can being convenient for is in the inboard of connecting groove 9, so that with the lower part connection of cover ring 3 in connecting groove 9.

The structural shape of recess 10 is open-ended annular, and the width of recess 10 is identical with the lower part external diameter of fixture block 11, can be convenient for fixture block 11 when rotating along with carousel 12, can stable card go into in the recess 10 to can be with the preliminary fixing on supporting seat 1 of dustcoat 2.

The structural shape of carousel 12 is 1/2 circular, and the eccentric department of carousel 12 sets up with fixture block 11 structure as an organic whole to the upper portion of fixture block 11 is prismatic structure, can be convenient for rotate to fixture block 11 when going into recess 10 at carousel 12, makes the lower part structure card of cover ring 3 between carousel 12, so that restriction carousel 12 rotates, thereby can guarantee the stable connection of fixture block 11 and recess 10, so that dustcoat 2 is stable to be installed on supporting seat 1.

The outside of locating plate 13 is provided with the stopper, and the structural shape of stopper is right angle triangular prism to stopper and locating plate 13 structure as an organic whole can be convenient for through the right angle triangular prism stopper in the locating plate 13 outside, makes the stable connection of cover ring 3 and spread groove 9, avoids when only pull-up cover ring 3, makes cover ring 3 and spread groove 9 separate.

The first coil 18 and the second coil 19 are wound on the iron core 17 at opposite positions, the end part of each coil close to the support frame 20 is connected with the electrode plate 25, and the end parts of the first coil 18 and the second coil 19 are connected with the corresponding connecting terminals 6, so that the current or the voltage on two sides of the iron core 17 can be changed conveniently according to the number of turns of the first coil 18 and the second coil 19, and a plurality of strands of the first coil 18 or the second coil 19 can be connected through the electrode plates 25, so that the number of turns of the first coil 18 and the second coil 19 can be changed conveniently, the small-sized transformer can be suitable for more situations, and the use limit of the existing small-sized transformer is reduced.

The outer surface of the supporting frame 20 is provided with a notch, the inner diameter of the notch is matched with the outer diameter of the conducting strip 22, and the electrode plate 25 is arranged in the notch, so that the conducting strip 22 can conveniently enter the notch on the outer surface of the supporting frame 20 when moving downwards along with the ceramic rod 21, and is convenient to contact with the electrode plate 25 in the notch, and the two electrode plates 25 on the supporting frame 20 can be connected.

The working principle is as follows: firstly, the small mutual inductor is arranged at a use position, instrument equipment is connected with a wiring terminal 6, and the instrument equipment can be connected with high voltage through the ratio of a first coil 18 to a second coil 19 on an iron core 17;

during the use process, if the ratio of the first coil 18 to the second coil 19 needs to be adjusted, the following operation can be performed:

according to fig. 1-9, a plurality of successive adjusting disks 5 are rotated, and since the rear side surfaces of the adjusting disks 5 are inclined surfaces, the adjusting disks gradually press the ceramic rods 21 during rotation, so that the ceramic rods 21 move towards the insides of the slots 23;

in the moving process of the ceramic rod 21, the compression spring 24 is gradually compressed, and the conducting strip 22 is gradually close to the electrode plate 25 until the two electrode plates 25 on the support frame 20 are connected;

after the two electrode plates 25 on the support frame 20 are connected, the number of turns of the first coil 18 and the second coil 19 is changed, so that the ratio of the first coil 18 to the second coil 19 is changed;

then, the instrument equipment is connected to the corresponding connecting terminal 6 for use;

when this small-size mutual-inductor broke down, the maintenance was dismantled to the accessible following mode of operation:

according to fig. 1-9, the positioning plate 13 on the side of the cover ring 3 is pressed, so that the positioning plate 13 moves towards the inner side of the cover ring 3 under the action of the reset rotating shaft 15;

when the cover ring 3 moves, the limiting block at the outer side of the cover ring is gradually separated from the connecting groove 9;

at this time, the cover ring 3 can be slid upwards so that the limiting hole on the inner side surface of the cover ring 3 is separated from the clamping block 11;

then, the rotating disc 12 is rotated through the fixture block 11 and the damping rotating shaft 14 until the fixture block 11 is separated from the groove 10;

at this time, under the condition that the rear side surface of the adjusting disc 5 is not pressed against the ceramic rod 21, the outer cover 2 is moved upwards, the end part of the ceramic rod 21 can slide out of the outer cover 2 from the guide groove 7, and the outer cover 2 is separated from the support seat 1;

therefore, maintenance personnel can maintain the mutual inductor;

after the maintenance is finished, the outer cover 2 is firstly installed on the supporting seat 1, the clamping blocks 11 are clamped into the grooves 10 through the rotation of the rotary disc 12, then the cover ring 3 is moved downwards, the cover ring 3 is connected to the supporting seat 1, and therefore the transformer is assembled.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a small-size mutual-inductor, includes supporting seat (1), its characterized in that: the upper surface of the supporting seat (1) is provided with a connecting groove (9), a damping rotating shaft (14) is connected in the connecting groove (9), the outer side of the damping rotating shaft (14) is in key connection with a turntable (12), and a clamping block (11) is fixedly connected on the turntable (12);

the clamping block (11) is clamped on the groove (10), the groove (10) is formed in a corner of the connecting ring (8), the connecting ring (8) is fixedly connected to the lower surface of the outer cover (2), the cover ring (3) is nested on the outer side of the outer cover (2), a through groove (16) is formed in the lower portion of the cover ring (3), and a positioning plate (13) is connected to the inside of the through groove (16) through a reset rotating shaft (15);

the front side and the rear side of the outer cover (2) are both provided with wiring terminals (6), the front side and the rear side of the outer cover (2) are both reserved with through holes (4), the inner bearing of each through hole (4) is connected with an adjusting disc (5), a guide groove (7) is arranged below each adjusting disc (5), and the guide groove (7) is reserved on the inner side of the outer cover (2);

an iron core (17) is arranged on the upper surface of the supporting seat (1), a first coil (18) and a second coil (19) are wound on the iron core (17), supporting frames (20) are arranged between the first coils (18) and between the second coils (19), and the supporting frame (20) is fixedly connected on the iron core (17), a ceramic rod (21) penetrates through the supporting frame (20), and the outer side of the upper part of the ceramic rod (21) is fixed with a conducting strip (22), an electrode plate (25) is arranged in the support frame (20), and the electrode plate (25) is connected with a first coil (18) or a second coil (19), the lower end of the ceramic rod (21) extends into the slotted hole (23), the inner side of the slot hole (23) and the outer side of the ceramic rod (21) are respectively and fixedly connected with two ends of a compression spring (24), and the slot hole (23) is arranged on the iron core (17).

2. A miniature transformer according to claim 1, wherein: the upper portion of the cover ring (3) is of an annular structure, the lower portion of the cover ring (3) is of 4 flat quadrangular prisms, 4 lower portions of the cover ring (3) are vertically arranged, meanwhile, the length of the 4 lower portions of the cover ring (3) is matched with the distance between the axes of the adjacent damping rotating shafts (14), and limiting holes matched with the upper portions of the clamping blocks (11) are formed in the inner side of the cover ring (3).

3. A miniature transformer according to claim 1, wherein: the rear side surface of the adjusting disc (5) is an inclined plane, and the outer side of the middle part of the adjusting disc is connected with the inner side of the through hole (4) in a bearing connection mode.

4. A miniature transformer according to claim 1, wherein: the structural shape of the connecting groove (9) is convex, the corners of the connecting groove (9) are circular structures, and the axes of the circular structures and the axes of the damping rotating shafts (14) are collinear.

5. A miniature transformer according to claim 1, wherein: the structural shape of the groove (10) is an open ring, and the width of the groove (10) is matched with the outer diameter of the lower part of the fixture block (11).

6. A miniature transformer according to claim 1, wherein: the structure shape of the rotary disc (12) is 1/2 circles, the eccentric part of the rotary disc (12) and the fixture block (11) are arranged in an integrated structure, and the upper part of the fixture block (11) is of a prismatic structure.

7. A miniature transformer according to claim 1, wherein: the outside of locating plate (13) is provided with the stopper, and the structural shape of stopper is the right angle triangular prism to stopper and locating plate (13) are integrated structure.

8. A miniature transformer according to claim 1, wherein: the first coil (18) and the second coil (19) are wound on the iron core (17) at opposite positions, the end part of each coil close to the support frame (20) is connected with the electrode plate (25), and the end parts of the first coil (18) and the second coil (19) are connected with the corresponding connecting terminals (6).

9. A miniature transformer according to claim 1, wherein: the outer surface of the support frame (20) is provided with a notch, the inner diameter of the notch is matched with the outer diameter of the conducting strip (22), and the electrode plate (25) is arranged in the notch.