CN211628910U

CN211628910U - Tap switch with gear signal lead-out function

Info

Publication number: CN211628910U
Application number: CN201921457230.5U
Authority: CN
Inventors: 杨梦蛟; 章宏仁
Original assignee: Zhejiang Tenglong Electrical Apparatus Co ltd
Current assignee: Zhejiang Tenglong Electrical Apparatus Co ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-10-02
Anticipated expiration: 2029-09-03

Abstract

The utility model discloses a tap changer with gear signal extraction, which comprises an insulating rod, a rack, a supporting piece, an insulating seat, a flange, an operating shaft, a positioning disk and a positioning handle, wherein the positioning disk is provided with an annular slot, the lower end of the positioning handle is provided with an annular insertion part, and the annular insertion part and the annular slot are matched with a plurality of positioning blocks and positioning grooves which are distributed on the circumference to realize multi-gear positioning; a circuit board is fixed on the positioning plate, a public conducting ring is arranged on the circuit board, a plurality of gear contacts are arranged on the circuit board, and a conducting metal sheet for connecting the public conducting ring and the corresponding gear contacts is fixed at the bottom of the extending plate on the positioning handle. Fix the circuit board on the positioning disk, be equipped with public conducting ring and a plurality of fender position contact on the circuit board, the electrically conductive sheetmetal that sets up through the extension board bottom of location handle switches on corresponding fender position contact and public conducting ring on keeping off the position and produces and keep off the position signal, inlays on the circuit board with public conducting ring and a plurality of fender position contact, and the winding displacement is convenient, and the installation of being convenient for.

Description

Tap switch with gear signal lead-out function

Technical Field

The utility model relates to a tap changer field of transformer, more specifically say, it relates to a tap changer that fender position signal draws.

Background

The tap changer product is used for meeting the requirement of voltage grade conversion of a transformer, the control indicating mechanism comprises a flange and a rotating shaft which is rotatably arranged on the flange and used for controlling the tap changer to carry out voltage grade conversion, and a handle for manual operation is fixed on the rotating shaft.

The patent with the publication number of CN204011137U discloses a tap changer with signal extraction, which comprises an insulating rod, a rack, a support, an insulating seat, a flange, an operating shaft, a positioning disk and a positioning handle, wherein the insulating rod is fixed at the lower part of the insulating seat, a plurality of fixed contacts are arranged on the insulating rod, the rack is arranged on the insulating seat in a sliding way, a plurality of moving contacts are fixed on the rack through the support, the flange is fixed on the insulating seat and sleeved on the operating shaft, a gear is arranged at the lower end of the operating shaft and meshed with the rack for driving the rack and the moving contacts thereof to move along the insulating rod, the flange is sleeved with the positioning disk and a fastening nut, the fastening nut is in threaded connection with the flange, the positioning handle is circumferentially positioned on the operating shaft and sleeved on the operating shaft, the upper end of the operating shaft is sleeved with a positioning spring and a gasket, the lower end of the positioning spring is abutted against the positioning handle, the upper end, the positioning plate is provided with an annular slot, the lower end of the positioning handle is provided with an annular insertion part which can be inserted into the annular slot, and the annular insertion part and the annular slot are matched through a plurality of positioning blocks and positioning grooves which are distributed on the circumference to realize multi-gear positioning; the bottom of annular slot is equipped with a public conducting ring, the positioning tank bottom is equipped with and keeps off a position the contact, and public conducting ring and a plurality of fender position contacts are equipped with insulating clearance between the contact, and public conducting ring and a plurality of fender position contacts are connected with display device or host computer through signal outgoing line respectively, annular insertion portion is fixed with electrically conductive sheetmetal in the bottom of one of them locating piece, inserts when annular insertion portion during annular slot, public conducting ring and corresponding fender position contact are connected to this electrically conductive sheetmetal.

However, the common conducting ring and the plurality of gear contacts need to be respectively installed in the annular slots of the positioning plate, and the installation is troublesome; in addition, the public conducting ring and the plurality of gear contacts need to be connected with a lead respectively to be connected with an upper computer and a display device, and the lead arrangement is dense.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art exists, the utility model discloses lie in providing a tap changer that the position signal was drawn off in area, fixed printed circuit board on this tap changer's the positioning disk sets up public conducting ring and a plurality of fender position contact on the printed circuit board, like this public conducting ring with keep off simple to operate, with low costs of position contact to the electrically conductive sheetmetal that sets up through the extension board bottom on the location handle switches on corresponding fender position contact and the production of public conducting ring on keeping off the position signal.

In order to achieve the above purpose, the utility model provides a following technical scheme: a tap switch with a gear signal lead-out function comprises an insulating seat, an operating shaft, a positioning disc, a positioning handle, a moving contact and a fixed contact; the positioning device is characterized in that an annular printed circuit board is fixed on the positioning plate, a public conducting ring is arranged on the printed circuit board, a plurality of gear contacts are further arranged on the printed circuit board around the public conducting ring, an insulating gap is arranged between the public conducting ring and the gear contacts, the public conducting ring and the gear contacts are respectively connected with a display device or an upper computer through signal outgoing lines, an extending plate extending along the radial direction of the positioning handle is further arranged on the positioning handle, a conductive metal sheet is fixed at the bottom of the extending plate, and the conductive metal sheet is connected with the public conducting ring and the corresponding gear contacts. The printed circuit board is fixed on the positioning plate of the tapping switch, the public conducting ring and the plurality of gear contacts are arranged on the printed circuit board, compared with the prior art, the public conducting ring and the gear contacts are convenient to install and low in cost, and the gear contacts and the public conducting ring on the corresponding gears are conducted through the conducting metal sheet arranged at the bottom of the extending plate on the positioning handle to generate gear signals.

Preferably, the inner side of the conductive metal sheet protrudes downwards to form a first protruding contact point used for being connected with the common conductive ring, and the outer side of the conductive metal sheet protrudes downwards to form a second protruding contact point used for being connected with the gear contact point. The first protruding contact on the conductive metal sheet is connected with the common conductive ring, the second protruding contact on the conductive metal sheet is connected with the gear contact, and the common conductive ring and the gear contact are conducted through the conductive metal sheet.

Preferably, the first raised contact is in surface or point contact with the common conductive ring, and the second raised contact is in surface or point contact with the gear contact. The contact area of the first raised contact and the common conducting ring and the contact area of the second raised contact and the gear contact are increased, so that the first raised contact and the common conducting ring and the second raised contact and the gear contact are conducted more stably.

Preferably, the common conducting ring is provided with a plurality of conducting contacts, the conducting contacts are formed by outwards protruding the common conducting ring, the conducting contacts correspond to the gear contacts one to one, and the conducting metal sheets are connected with the conducting contacts on the common conducting ring and the corresponding gear contacts.

Preferably, a signal outgoing line of the gear contact is connected to an aviation socket, and the aviation socket is connected to the display device or the upper computer through a cable. Aviation socket can realize quick grafting, and insulating nature and security are good.

Preferably, a rain cover is further fixed on the positioning plate.

Preferably, the positioning spring and the washer are of an integral structure. The installation is convenient.

Preferably, the operating shaft is sleeved with a plug sleeve, and the plug sleeve is positioned between the flange and the operating shaft. The sleeve serves to increase the seal between the flange and the steering shaft.

Preferably, the positioning disc is provided with an annular slot, and the lower end of the positioning handle is provided with an annular insertion part which can be inserted into the annular slot; the annular insertion part and the annular slot are matched with each other through a plurality of positioning blocks and positioning grooves which are distributed on the circumference to realize multi-gear positioning.

To sum up, the utility model discloses following beneficial effect has: the common conducting ring and the gear contacts are convenient to install and low in cost, and the gear contacts and the common conducting ring on corresponding gears are conducted to generate gear signals through the conducting metal sheet arranged at the bottom of the extending plate on the positioning handle; in addition, the public conducting ring and the plurality of gear contacts are embedded on the printed circuit board, so that the wire arrangement is convenient, and the installation is convenient.

Drawings

Fig. 1 is a schematic structural view of a tap changer;

fig. 2 is a top view of the tap changer with the rain cover removed;

FIG. 3 is an enlarged schematic view at A in FIG. 1;

fig. 4 is a schematic structural diagram of another embodiment of a tap changer;

fig. 5 is a top view of another embodiment of a tap changer with the rain cover removed.

Reference numerals: 1. an insulating rod; 2. a rack; 3. an insulating base; 4. a flange; 5. a steering shaft; 6. positioning a plate; 7. a positioning handle; 8. a gear; 9. fastening a nut; 10. a gasket; 11. a printed wiring board; 12. A common conductive ring; 13. a gear contact; 14. a conductive contact; 15. an extension plate; 16. a conductive metal sheet; 17. a first bump contact; 18. a second bump contact; 19. an aviation socket; 20. a rain cover; 21. and (5) sleeve plugging.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The embodiment discloses a tap switch with a gear signal lead-out function, as shown in fig. 1-3, comprising an insulating rod 1, a rack 2, a support, an insulating seat 3, a flange 4, an operating shaft 5, a positioning disk 6 and a positioning handle 7, wherein the insulating rod 1 is fixed at the lower part of the insulating seat 3, a plurality of fixed contacts are arranged on the insulating rod 1, the rack 2 is arranged on the insulating seat 3 in a sliding manner, a plurality of moving contacts are fixed on the rack 2 through the support, the flange 4 is fixed on the insulating seat 3, the flange 4 is sleeved on the operating shaft 5, a gear 8 is arranged at the lower end of the operating shaft 5, the gear 8 is meshed with the rack 2 to drive the rack 2 and the moving contacts thereof to move along the insulating rod 1, the flange 4 is sleeved with the positioning disk 6 and a fastening nut 9, the fastening nut 9 is in threaded connection with the flange 4, the positioning handle 7 is circumferentially positioned on the operating shaft 5 and sleeved on the operating shaft, the positioning spring and the gasket 10 are of an integrated structure, the lower end of the positioning spring abuts against the positioning handle 7, the upper end of the positioning spring abuts against the gasket 10, the gasket 10 is axially limited on the operating shaft 5, the positioning disk 6 is provided with an annular slot, the lower end of the positioning handle 7 is provided with an annular insertion part which can be inserted into the annular slot, and the annular insertion part and the annular slot are matched through a plurality of positioning blocks and positioning grooves which are circumferentially distributed to realize multi-gear positioning; an annular printed circuit board 11 is fixed on the positioning plate 6, a common conductive ring 12 is arranged on the printed circuit board 11, a plurality of gear contacts 13 are further arranged on the printed circuit board 11 around the common conductive ring 12, an insulation gap is arranged between the common conductive ring 12 and the gear contacts 13, a plurality of conductive contacts 14 are arranged on the common conductive ring 12, the conductive contacts 14 are semi-annular, the conductive contacts 14 are formed by outwards protruding the common conductive ring 12, the conductive contacts 14 correspond to the gear contacts 13 one to one, the common conductive ring 12 and the gear contacts 13 are respectively connected with a display device or an upper computer through signal outgoing lines, an extension plate 15 extending along the radial direction of the positioning handle 7 is further arranged on the positioning handle 7, the extension plate 15 is arranged above the printed circuit board 11, a conductive metal sheet 16 is fixed at the bottom of the extension plate 15, and the conductive metal sheet 16 is connected with the common conductive ring 12 and. A printed circuit board 11, a common conducting ring 12 and a plurality of gear contacts 13 are fixed on a positioning plate 6 of the tap switch, and are arranged on the printed circuit board 11. compared with the prior art, the common conducting ring 12 and the gear contacts 13 are convenient to install and low in cost, and the gear contacts 13 and the common conducting ring 12 on corresponding gears are conducted to generate gear signals through conducting metal sheets 16 arranged at the bottom of an extending plate 15 on a positioning handle 7. Meanwhile, the common conducting ring 12 and the plurality of gear contacts 13 are embedded on the printed circuit board 11, so that the wiring is convenient and the installation is convenient; in addition, the tap changer can automatically provide gear signals for a display device or an upper computer, so that the workload of manual recording is reduced, the structure is simple, the installation is convenient, and errors are not easy to occur.

The inner side of the conductive metal sheet 16 protrudes downwards to form a first protruding contact 17 used for being connected with the common conductive ring 12, the outer side of the conductive metal sheet 16 protrudes downwards to form a second protruding contact 18 used for being connected with the gear contact 13, the first protruding contact 17 is in surface or point contact with the common conductive ring 12, and the second protruding contact 18 is in surface or point contact with the gear contact 13. The contact areas of the first raised contact 17 and the common conductive ring 12 and the second raised contact 18 and the gear contact 13 are increased, so that the conduction of the first raised contact 17 and the common conductive ring 12 and the conduction of the second raised contact 18 and the gear contact 13 are more stable.

In addition, a plurality of conductive contacts 14 are arranged on the common conductive ring 12, the conductive contacts 14 are semi-annular, the conductive contacts 14 are formed by protruding the common conductive ring 12 outwards, the conductive contacts 14 correspond to the gear contacts 13 one by one, and the conductive metal sheets 16 are connected with the conductive contacts 14 on the common conductive ring 12 and the corresponding gear contacts 13.

Preferably, as shown in fig. 4 and 5, the signal outlet of the gear contact 13 is connected to an aviation socket 19, and the aviation socket 19 is connected to a display device or an upper computer through a cable. The aviation socket 19 can realize quick plug-in connection, and has good insulation and safety. Rain-proof cover 20 is still fixed on positioning disk 6, in addition, the cover is equipped with plug bush 21 on the control shaft 5, plug bush 21 is located between flange 4 and control shaft 5.

The specific structure of the insulating rod 1, the supporting member, the rack 2, and the movable contact is described in patent document No. CN 204011137U.

The directions given in the present embodiment are merely for convenience of describing positional relationships between the respective members and the relationship of fitting with each other. It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A tap switch with a gear signal lead-out function comprises an insulating seat (3), an operating shaft (5), a positioning plate (6), a positioning handle (7), a moving contact and a fixed contact; the novel gear shifting mechanism is characterized in that an annular printed circuit board (11) is fixed on the positioning disc (6), a public conducting ring (12) is arranged on the printed circuit board (11), a plurality of gear contacts (13) are further arranged on the printed circuit board (11) around the public conducting ring (12), an insulating gap is formed between the public conducting ring (12) and the gear contacts (13), the public conducting ring (12) and the gear contacts (13) are respectively connected with a display device or an upper computer through signal outgoing lines, an extending plate (15) extending along the radial direction of the extending plate is further arranged on the positioning handle (7), a conducting metal sheet (16) is fixed at the bottom of the extending plate (15), and the conducting metal sheet (16) is connected with the public conducting ring (12) and the corresponding gear contacts (13).

2. The tap changer with a range signal tap as claimed in claim 1, wherein: the inner side of the conductive metal sheet (16) protrudes downwards to form a first protruding contact (17) used for being connected with the common conductive ring (12), and the outer side of the conductive metal sheet (16) protrudes downwards to form a second protruding contact (18) used for being connected with the gear contact (13).

3. The tap changer with a range signal tap as claimed in claim 2, wherein: the first protruding contact (17) is in surface or point contact with the common conducting ring (12), and the second protruding contact (18) is in surface or point contact with the gear contact (13).

4. The tap changer with a range signal tap as claimed in claim 1, wherein: the common conducting ring (12) is provided with a plurality of conducting contacts (14), the conducting contacts (14) are formed by outwards protruding the common conducting ring (12), the conducting contacts (14) correspond to the gear contacts (13) one by one, and the conducting metal sheets (16) are connected with the conducting contacts (14) on the common conducting ring (12) and the corresponding gear contacts (13).

5. The tap changer with a range signal tap as claimed in claim 1, wherein: and a signal outgoing line of the gear contact (13) is connected to an aviation socket (19), and the aviation socket (19) is connected to the display device or the upper computer through a cable.

6. The tap changer with a range signal tap as claimed in claim 1, wherein: a rain cover (20) is further fixed on the positioning disc (6).

7. The tap changer with a range signal tap as claimed in claim 1, wherein: the operating shaft (5) is sleeved with a plug sleeve (21), and the plug sleeve (21) is positioned between the flange (4) and the operating shaft (5).

8. The tap changer with a range signal tap as claimed in claim 1, wherein: an annular slot is formed in the positioning disc (6), and an annular insertion part capable of being inserted into the annular slot is arranged at the lower end of the positioning handle (7); the annular insertion part and the annular slot are matched with each other through a plurality of positioning blocks and positioning grooves which are distributed on the circumference to realize multi-gear positioning.