CN111900023A - Conductive connection structure of ice-melting short-circuit switch - Google Patents

Abstract

The invention discloses a conductive connection structure of an ice-melting short-circuit switch, which comprises: a transmission case; the conductive tube axially penetrates through the transmission box, and the peripheral wall of the conductive tube is rotationally connected with the transmission box; the two axial ends of the conductive tube are respectively used for connecting the A phase and the C phase of the ice melting circuit, and the conductive tube is electrically connected with the transmission case; the connecting piece comprises a wire holder and a wiring terminal, the wire holder is fixedly connected with the transmission case, and the wiring terminal is connected with the ice melting line B and is electrically connected with the transmission case; the wiring terminal is rotatably mounted on the wiring holder around its own axis. According to the conductive connection structure of the ice-melting short-circuit switch, only single-phase connection is needed, and the land occupation area is saved; the ice melting line is rotationally connected with the conductive connecting structure and is not influenced by the action of the isolating switch; the device has simple structure, simple and convenient action, stability and reliability; the manual on-site wiring is not needed, tools are not needed, manpower and material resources are saved, and personal injury possibly brought by manual wiring is avoided.

Description

Conductive connection structure of ice-melting short-circuit switch

Technical Field

The invention mainly relates to the technical field of ice-melting switches, in particular to a conductive connection structure of an ice-melting short-circuit switch.

Background

When the existing line needs short-circuit ice melting, a manual temporary field connection mode is generally adopted, or a two-phase double-column horizontal telescopic isolating switch is installed to perform short-circuit ice melting. When the three-column horizontal rotary isolating switch is adopted for short circuit, the short circuit can be completed only by one isolating switch; however, the middle position of the horizontal rotary isolating switch for ice melting short circuit needs to be provided with a wiring position to be connected with a circuit, when the horizontal rotary isolating switch is switched on, the horizontal rotary isolating switch rotates 71 degrees horizontally, the rear conductive tube rotates 45 degrees axially, and the connected ice melting circuit can interfere with the normal switching-on and switching-off action of the isolating switch.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a conductive connection structure of an ice-melting short-circuit switch, which is used on a three-column horizontal rotary isolating switch as the ice-melting short-circuit switch, an ice-melting line is rotationally connected with the conductive connection structure, and the switching-on action is not influenced by the ice-melting line.

According to the embodiment of the first aspect of the invention, the conductive connection structure of the ice-melting short-circuit switch comprises: a transmission case; the conductive tube axially penetrates through the transmission box, and the peripheral wall of the conductive tube is rotationally connected with the transmission box; the two axial ends of the conductive tube are respectively used for connecting the phase A and the phase C of the ice melting line, and the conductive tube is electrically connected with the transmission case;

the connecting piece comprises a wire holder and a wiring terminal, the wire holder is fixedly connected with the transmission case, and the wiring terminal is connected with the ice melting line B and is electrically connected with the transmission case; the wiring terminal is rotatably mounted on the wiring holder around the axis of the wiring terminal.

The conductive connection structure of the ice-melting short-circuit switch provided by the embodiment of the invention at least has the following beneficial effects: the conductive connection structure is used on the three-column horizontal rotary isolating switch and can be used as an ice-melting short-circuit switch, and the three-column horizontal rotary isolating switch only needs a single phase when being used for ice-melting short-circuit, so that the land occupation area is greatly saved; the ice-melting short-circuit switch is convenient to operate, manual on-site wiring is not needed, and personal injury possibly caused by manual wiring is avoided. The invention only comprises three parts of the transmission case, the conductive tube and the connecting piece to complete the action, and has simple structure; the conductive wire is stably connected with the ice melting line and is reliable in conduction; the action is simple and convenient, and the device is stable and durable; the ice melting line is rotationally connected with the conductive connecting structure, and the closing action is not influenced by the ice melting line.

According to some embodiments of the invention, the transmission case comprises a case cover and a case body, the case cover is detachably connected with the case body; the box body is provided with a flange, and the flange is used for connecting a device capable of driving the transmission case to move.

According to some embodiments of the invention, a driving mechanism capable of driving the conductive tube to rotate along its own axis and a resetting mechanism capable of driving the conductive tube to reset are arranged in the box body.

According to some embodiments of the invention, the drive mechanism comprises a drive shaft, a rotating sleeve and a drive wheel; the rotating sleeve is sleeved at the top end of the driving shaft, and the driving shaft can horizontally rotate around the axis of the driving shaft and drive the rotating sleeve to rotate; the driving wheel is connected to the peripheral wall of the rotating sleeve and is in meshed connection with the conductive pipe.

According to some embodiments of the invention, the conductive tube is provided with a lock catch on the peripheral wall, and the lock catch is provided with a driven wheel which is in meshed connection with the driving wheel.

According to some embodiments of the invention, the reset mechanism comprises a hinge, a crank arm and a large tension spring, wherein one end of the hinge is hinged with the box body, and the other end of the hinge is hinged with the crank arm; one end of the crank arm, which is far away from the hinge, is fixedly connected to the peripheral wall of the rotating sleeve; the big tension spring is arranged between the hinge and the box body and used for driving the driving shaft to rotate and reset.

According to some embodiments of the invention, the box cover is electrically connected to the conductive tube by a conductive tape; the box cover is characterized in that mounting terminals extending along the axial direction of the conductive tube are arranged on two sides of the box cover, the mounting terminals are arranged on the peripheral wall of the conductive tube, and the box cover is connected with the mounting terminals of the conductive tube through the conductive bands.

According to some embodiments of the invention, the wire holder is provided with a mounting hole perpendicular to the axial extension direction of the contact tube; the wiring terminal comprises a wiring board and a wiring terminal, and the wiring board is fixedly connected with the wiring terminal; the wiring board is connected with the ice melting circuit B, and the wiring terminal penetrates through the mounting hole.

According to some embodiments of the invention, an insulating sleeve is arranged in the mounting hole and used for isolating the connection terminal from being electrically connected with the wire holder through the mounting hole.

According to some embodiments of the present invention, the portion of the terminal in the wire holder is electrically connected to the wire holder through a conductive strip, one end of the conductive strip is connected to the terminal, and the other end of the conductive strip is connected to a sidewall of the wire holder.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of a state of use of the present invention;

FIG. 2 is a schematic structural view of the transmission case of the present invention;

FIG. 3 is a top plan view of the transmission case of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic view of the interior of the case of the present invention;

FIG. 6 is a top view of the case of the present invention;

fig. 7 is a schematic view of the structure of the connection terminal of the present invention.

Reference numerals:

the transmission case 100, the case cover 110, the case body 120, the stop bolt 121 and the flange 130;

the device comprises a conductive tube 200, a moving contact 210, a static contact 211, a lock catch 220, a small tension spring 221 and a driven wheel 230;

the connector 300, the wire holder 310, the mounting hole 311, the wiring terminal 320, the wiring board 321, the wiring post 322 and the insulating sleeve 330;

mounting terminals 400, conductive strips 410;

a driving mechanism 500, a driving shaft 510, a rotating sleeve 520, a crank arm 521, and a driving wheel 530;

the reset mechanism 600, a hinge 610, a fixing buckle 611, a rotating buckle 612, a limit bolt 613 and a large tension spring 620.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 7, the conductive connection structure of the ice-melting shorting switch according to the embodiment of the invention includes a transmission case 100, a conductive tube 200 and a connecting member 300.

The conductive tube 200 axially penetrates through the transmission case 100 and the peripheral wall of the conductive tube is rotationally connected with the transmission case 100; two axial ends of the conductive tube 200 are respectively used for connecting the phase A and the phase C of the ice melting line, and the conductive tube 200 is electrically connected with the transmission case 100. Specifically, the invention is used on a three-column horizontal rotary isolating switch and can be used as an ice melting short-circuit switch; the transmission case 100 is arranged on the middle column of the three-column horizontal rotation isolating switch and is connected with the B; the other two side columns of the three-column horizontal rotation isolating switch are respectively provided with a static contact 211, and the static contacts 211 at the two sides are respectively connected with the phase A and the phase C; two ends of the conductive tube 200 are both provided with a moving contact 210, and the moving contact 210 is connected with a fixed contact 211 in a clamping manner to realize circuit conduction. When the switch is switched on, the transmission case 100 horizontally rotates by 71 degrees to drive the conductive tube 200 to rotate to the position where the conductive tube is contacted with the phase A and the phase C, and then the conductive tube 200 rotates by 45 degrees around the axis of the conductive tube 200 and is clamped; the rotary clamping can reduce the impact force of closing. The conductive tube 200 axially penetrates through the transmission case 100, and the conductive tube 200 can be rotatably connected to the transmission case 100 around the axis thereof; the transmission case 100 is disposed at an axially middle position of the conductive pipe 200. The connecting piece 300 comprises a wire holder 310 and a connecting terminal 320, wherein the wire holder 310 is fixedly connected with the transmission case 100, and the connecting terminal 320 is connected with the ice melting line B and electrically connected with the transmission case 100; the wire terminal 320 is rotatably mounted on the wire holder 310 about its own axis.

In some embodiments of the present invention, the transmission case 100 includes a case cover 110 and a case body 120, wherein the case cover 110 is detachably connected to the case body 120, and a receiving space is formed between the case body 120 and the case cover 110; the housing 120 is provided with a flange 130, and the flange 130 is used for connecting a device capable of driving the transmission case 100 to move. Specifically, the flange 130 is fixedly connected to the box 120 and disposed at the bottom of the box 120, and the flange 130 is used for connecting an external power device, such as: a motor output shaft or other power device provided with a connection structure corresponding to the flange 130. The flange 130 can rotate horizontally under the driving of the external power device, and then the transmission case 100 is driven to rotate.

It will be appreciated that the flange 130 may be replaced with other types of connection structures, such as a snap-fit connection.

In some embodiments of the present invention, as shown in fig. 4, 5, and 6, a driving mechanism 500 capable of driving the contact tube 200 to rotate along its own axis and a resetting mechanism 600 capable of resetting the contact tube 200 are disposed in the box 120.

In some embodiments of the present invention, the drive mechanism 500 includes a drive shaft 510, a rotating sleeve 520, and a drive wheel 530; the rotating sleeve 520 is sleeved at the top end of the driving shaft 510, and the driving shaft 510 can horizontally rotate around the axis of the driving shaft and drive the rotating sleeve 520 to rotate; the driving wheel 530 is coupled to the peripheral wall of the rotating sleeve 520 and is engaged with the contact tube 200. Specifically, a through hole is formed in the center of the flange 130, a column hole extending to the accommodating space in the transmission case 100 is formed in a position of the case 120 corresponding to the center of the through hole of the flange 130, and the driving shaft 510 extends downward from the inside of the transmission case 100 to the through hole of the flange 130 through the column hole. The stop bolt 121 is arranged in the box body 120, and the stop bolt 121 is arranged on the inner side wall of the box body 120 and is horizontal to the driving wheel 530, so that the rotation end point of the driving wheel 530 is determined, and the box body 120 is protected. The driving shaft 510 rotates by 45 degrees and abuts against the stop bolt 121; the stop bolt 121 can be adjusted according to actual conditions to determine the optimal rotation end position of the driving wheel 530.

In some embodiments of the present invention, the conductive tube 200 is provided with a latch 220 around the circumference thereof, the latch 220 is provided with a driven wheel 230, and the driven wheel 230 is engaged with the driving wheel 530. Specifically, the driven wheel 230 is vertically engaged with the driving wheel 530, and the driving wheel 530 rotates horizontally to drive the driven wheel 230 to rotate vertically.

In some embodiments of the present invention, the reset mechanism 600 includes a hinge 610, a crank 521 and a large tension spring 620, wherein one end of the hinge 610 is hinged to the box body 120, and the other end is hinged to the crank 521; specifically, the hinge 610 includes a fixing buckle 611 and a rotating buckle 612, both of which are arc-shaped structures, one end of the fixing buckle 611 is hinged with the box body 120, and the other end is hinged with the rotating buckle 612; the two ends of the rotating buckle 612 are respectively hinged with the fixing buckle 611 and the crank arm 521. One end of the crank arm 521 far away from the hinge 610 is fixedly connected to the peripheral wall of the rotating sleeve 520; a large tension spring 620 is provided between the hinge 610 and the housing 120 for driving the driving shaft 510 to be rotationally restored. One end of a large tension spring 620 is connected to the case 120, and the other end is connected to the hinge of the fixing buckle 611 and the rotating buckle 612. When the switch is closed, the crank arm 521 rotates along with the rotating sleeve 520, so as to drive the hinge 610 to rotate, and further stretch the large tension spring 620; during opening, the large tension spring 620 contracts to reset to drive the hinge 610 to rotate, thereby driving the conductive tube 200 to reset.

In addition, as shown in fig. 5 and 6, a limit bolt 613 is further disposed on the fixing buckle 611, and a small tension spring 221 is further disposed between the lock catch 220 and the box body 120; the limit bolt 613 is used for determining the reset end point of the conductive tube 200 and is also the rotation start point of the conductive tube 200; when the large tension spring 620 drives the rotating buckle 612 to rotate to a position abutting against the limit bolt 613, the conductive tube 200 stops rotating and resets; after the contact tube 200 is reset, the small tension spring 221 still maintains a certain contraction force all the time to maintain the contact tube 200 at the initial position. The small tension spring 221 is used for driving the conductive tube 200 to reset and buffering the quick reset of the conductive tube 200; because the elastic potential energy of the large tension spring 620 is large and the release speed of the potential energy is high, the conductive tube 200 is reset to cause impact, and when the conductive tube 200 is rotated to reset, the small tension spring 221 is firstly contracted to reset and then compressed, so that the damage to the conductive tube 200 caused by the rapid reset of the conductive tube 200 is reduced.

In some embodiments of the present invention, as shown in fig. 4, 5, and 7, the box cover 110 is electrically connected to the conductive tube 200 through a conductive strip 410; mounting terminals 400 extending in the axial direction of the conductive tube 200 are provided on both sides of the case cover 110, the mounting terminals 400 are provided on the peripheral wall of the conductive tube 200, and the case cover 110 and the mounting terminals 400 of the conductive tube 200 are connected by a conductive tape 410. The conductive strip 410 is a flexible material.

In some embodiments of the present invention, the wire holder 310 is provided with a mounting hole 311 perpendicular to the axial extension direction of the contact tube 200; the wiring terminal 320 comprises a wiring board 321 and a wiring post 322, wherein the wiring board 321 is fixedly connected with the wiring post 322; the wiring board 321 is connected with the ice melting line B, and the wiring terminal 322 is arranged in the mounting hole 311 in a penetrating mode. The post 322 is rotatable about its axis relative to the wire holder 310.

In some embodiments of the present invention, an insulating sleeve 330 is disposed in the mounting hole 311, and the insulating sleeve 330 is used for isolating the connection terminal 320 from the wire holder 310 through the mounting hole 311. Specifically, there is a great risk that the electrical connection between the wire holder 310 and the wire terminal 320 is achieved through the mounting hole 311, because there must be a certain gap at the connection between the mounting hole 311 and the wire terminal 320, and the gap may be enlarged as the service life is prolonged, so that an arc may be generated at the gap, and an electric spark may be generated when the wire terminal 320 rotates relative to the wire holder 310, which may damage equipment and be disadvantageous to construction safety, so that the connection between the wire terminal 320 and the mounting hole 311 is insulated.

In some embodiments of the present invention, the portion of the post 322 located in the wire holder 310 is electrically connected to the wire holder 310 through the conductive strip 410, and one end of the conductive strip 410 is connected to the post 322, and the other end is connected to the sidewall of the wire holder 310. Specifically, the wire holder 310 is an annular conductor, and the wire holder 310 is fixedly connected to the transmission case 100 through a bolt, so that the wire holder 310 and the case cover 110 can be electrically connected; the part of the binding post 322 in the wire holder 310 is fixedly connected with one end of the conductive strip 410 through a bolt, the other end of the conductive strip 410 is also fixedly connected with the side wall of the wire holder 310 through a bolt, and the conductive strip 410 is set to be not twisted or folded when the binding post 322 rotates relative to the wire holder 310. The connection terminal 320 is electrically connected to the transmission case 100 through the conductive tape 410 and the connection holder 310.

It will be appreciated that the wire holder 310 may also be provided as a closed box conductor.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An ice-melt shorting switch conductive connection structure, comprising:

a transmission case (100);

the conductive pipe (200) axially penetrates through the transmission box (100) and is rotationally connected with the transmission box (100) at the peripheral wall; the two axial ends of the conductive tube (200) are respectively used for connecting the phase A and the phase C of the ice melting line, and the conductive tube (200) is electrically connected with the transmission case (100);

the connecting piece (300) comprises a wire holder (310) and a wiring terminal (320), the wire holder (310) is fixedly connected with the transmission case (100), and the wiring terminal (320) is connected with the ice melting line B and is electrically connected with the transmission case (100); the wire connecting terminal (320) is rotatably mounted on the wire holder (310) around the axis of the wire connecting terminal.

2. The conductive connection structure of the ice-melting shorting switch according to claim 1, wherein: the transmission case (100) comprises a case cover (110) and a case body (120), wherein the case cover (110) is detachably connected with the case body (120); the box body (120) is provided with a flange (130), and the flange (130) is used for connecting a device capable of driving the transmission case (100) to move.

3. The conductive connection structure of the ice-melting shorting switch according to claim 2, wherein: the box body (120) is internally provided with a driving mechanism (500) which can drive the conductive tube (200) to rotate along the axis of the conductive tube and a reset mechanism (600) which drives the conductive tube (200) to reset.

4. The conductive connection structure of the ice-melting shorting switch as claimed in claim 3, wherein: the driving mechanism (500) comprises a driving shaft (510), a rotating sleeve (520) and a driving wheel (530); the rotating sleeve (520) is sleeved at the top end of the driving shaft (510), and the driving shaft (510) can horizontally rotate around the axis of the driving shaft and drive the rotating sleeve (520) to rotate; the driving wheel (530) is connected to the peripheral wall of the rotating sleeve (520) and is in meshing connection with the conductive pipe (200).

5. The conductive connection structure of the ice-melting shorting switch as claimed in claim 4, wherein: the peripheral wall of the conductive pipe (200) is provided with a lock catch (220), the lock catch (220) is provided with a driven wheel (230), and the driven wheel (230) is meshed with the driving wheel (530).

6. The conductive connection structure of the ice-melting shorting switch as claimed in claim 5, wherein: the reset mechanism (600) comprises a hinge (610), a crank arm (521) and a large tension spring (620), one end of the hinge (610) is hinged with the box body (120), and the other end of the hinge (610) is hinged with the crank arm (521); one end of the crank arm (521), which is far away from the hinge (610), is fixedly connected to the peripheral wall of the rotating sleeve (520); the big tension spring (620) is arranged between the hinge (610) and the box body (120) and used for driving the driving shaft (510) to rotate and reset.

7. The conductive connection structure of the ice-melting shorting switch according to claim 2, wherein: the box cover (110) is electrically connected with the conductive tube (200) through a conductive belt (410); the box cover is characterized in that mounting terminals (400) extending along the axial direction of the conductive tube (200) are arranged on two sides of the box cover (110), the mounting terminals (400) are arranged on the peripheral wall of the conductive tube (200), and the box cover (110) is connected with the mounting terminals (400) of the conductive tube (200) through the conductive belts (410).

8. The conductive connection structure of the ice-melting shorting switch according to claim 1, wherein: the wire holder (310) is provided with a mounting hole (311) which is perpendicular to the axial extension direction of the conductive tube (200); the wiring terminal (320) comprises a wiring board (321) and a binding post (322), and the wiring board (321) is fixedly connected with the binding post (322); the wiring terminal (322) penetrates through the mounting hole (311), and the wiring board (321) is connected with the ice melting line B.

9. The conductive connection structure of the ice-melting shorting switch according to claim 8, wherein: an insulating sleeve (330) is arranged in the mounting hole (311), and the insulating sleeve (330) is used for separating the wiring terminal (320) from the wiring base (310) and is electrically connected with the wiring base through the mounting hole (311).

10. The conductive connection structure of the ice-melting shorting switch according to claim 9, wherein: the wiring terminal (322) is located the part in the wire holder (310) with the wire holder (310) conducts through conductive band (410), conductive band (410) one end with wiring terminal (322) are connected, and the other end connect in on the wire holder (310) lateral wall.

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