CN214043511U - Solid-sealed polar pole - Google Patents

Abstract

The utility model provides an gu seal utmost point post, including first portion and second portion, the first portion includes first casing, vacuum interrupter, insulating pull rod, the flexible coupling, the seat of being qualified for the next round of competitions down, go up the seat of being qualified for the next round of competitions and slidingtype isolation sword, first casing has left installation side and the right installation side of isolated and back of the body setting mutually, vacuum interrupter and insulating pull rod set up in left installation side, slidingtype isolation sword sets up in right installation side, the second portion includes the second casing, go up isolation sword static contact and last isolation sword spring contact, the second casing is fixed in the upper end of first casing, and right installation side direction extends there is the insulating cap, it assembles on the insulating cap and keeps apart the sword with corresponding slidingtype down to go up isolation sword spring contact, it assembles on the insulating cap and connects isolation sword spring contact to go up isolation sword static contact. In the scheme, the vacuum arc extinguish chamber and the sliding type isolating knife are integrated together, and meanwhile, the vacuum arc extinguish chamber and the sliding type isolating knife have good isolating effect, meet the insulating requirement and are compact in structure and small in size.

Description

Solid-sealed polar pole

Technical Field

The utility model relates to an gu seal utmost point post field, concretely relates to integrated vacuum circuit break and isolator's gu seal utmost point post.

Background

The conventional embedded pole is formed by simultaneously embedding conductive parts related to a Vacuum interrupter (Vacuum interrupter) and a Circuit breaker (Circuit-breaker) into an easily-cured solid insulating material such as epoxy resin or thermoplastic material, so that the whole pole of the Circuit breaker becomes an integral component. In practical application, the circuit breaker is often used together with an isolation disconnecting link to form a complete circuit breaker.

However, the existing solid-sealed pole with the vacuum arc-extinguishing chamber and the isolation switch are two independent modules, so that the assembly difficulty is high, the whole size of the circuit breaker is large, and further improvement is needed.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a pair of gu seal utmost point post, can break the vacuum and the isolator is integrated together, and the vacuum breaks and keeps apart effectually between the isolator, can not influence each other.

In order to achieve the above purpose, the utility model provides a technical scheme as follows:

an embedded pole comprises a first part and a second part; the first part comprises a first shell, a vacuum arc extinguish chamber, an insulating pull rod, a flexible connection, a lower wire outlet seat, an upper wire outlet seat and a sliding type isolation knife, wherein the first shell is provided with a left installation side and a right installation side which are isolated and arranged oppositely, a vacuum arc extinguish chamber and a switching-closing operation chamber positioned above the vacuum arc extinguish chamber are formed on the left installation side, and the switching-closing operation chamber is provided with an upper opening; an isolation knife operating cavity is formed on the right mounting side; the vacuum arc-extinguishing chamber is assembled in the vacuum arc-extinguishing chamber, the lower wire outlet seat is arranged at the lower end of the first shell and connected with the static end of the vacuum arc-extinguishing chamber, the insulating pull rod is arranged in the opening and closing operation cavity and connected with the movable end of the vacuum arc-extinguishing chamber, the upper wire outlet seat is an annular wire outlet seat and is fixed in the isolation knife operation cavity, the sliding isolation knife is sleeved in the upper wire outlet seat and can slide up and down, one end of the flexible connection is connected with the movable end of the vacuum arc-extinguishing chamber, and the other end of the flexible connection penetrates through the partition plate layer for isolating the left installation side and the right installation side and is connected with the upper wire outlet seat; the second part comprises a second shell, an upper isolation knife fixed contact and an upper isolation knife spring contact piece, the second shell is fixed at the upper end of the first shell, an insulating cap extends towards the right installation side, the upper isolation knife spring contact piece is assembled on the insulating cap and faces downwards to correspond to the sliding type isolation knife, and the upper isolation knife fixed contact is assembled on the insulating cap and connected with the upper isolation knife spring contact piece.

Furthermore, a fixing threaded hole is formed in the outer side face of the left mounting side, the lower outgoing line seat is arranged at the lower end of the right mounting side of the first shell, and the lower outgoing line seat is connected with the static end of the vacuum arc-extinguishing chamber through a pole arranged in the first shell.

Furthermore, the upper outgoing line seat comprises an annular conductive seat and a contact finger spring arranged on the inner annular surface of the annular conductive seat, and the contact finger spring is elastically abutted against the sliding type isolation knife to form electric contact.

Furthermore, the isolation knife operating cavity is provided with an outer side opening and a top opening, and the upper wire outlet seat is assembled at the position of the top opening of the isolation knife operating cavity.

Further, the sword is kept apart to slidingtype includes fixed guide bar, keeps apart sword drive seat and electrically conductive section of thick bamboo, fixed guide bar sets up perpendicularly and is fixed in and keeps apart sword operation intracavity, electrically conductive section of thick bamboo has a direction hole, electrically conductive section of thick bamboo overlaps in last wire outlet seat, and fixed guide bar is cup jointed to its direction hole, keep apart sword drive seat fixed connection electrically conductive section of thick bamboo.

Furthermore, the fixed guide rod comprises a rod part and a guide ring sleeved on the rod part, the diameter of the rod part is smaller than the aperture of the guide inner hole of the conductive cylinder, and the guide ring is matched with the guide inner hole of the conductive cylinder so as to be in guide contact fit.

Furthermore, the outer edge of the insulation cap also extends downwards to form an isolation brim.

Further, the isolation brim completely covers the periphery of the upper isolation blade spring contact and extends downwards to exceed the upper isolation blade spring contact.

Further, the upper isolation knife fixed contact is arranged upwards.

Furthermore, the second shell also extends upwards to form a separation convex wall.

Through the utility model provides a technical scheme has following beneficial effect:

the left mounting side for arranging the vacuum arc-extinguishing chamber and the insulating pull rod is opposite to and isolated from the right mounting side for arranging the sliding type isolating knife, so that the vacuum arc-extinguishing chamber and the sliding type isolating knife are integrated together and play a good isolating role; the movable end of the vacuum arc extinguish chamber is electrically contacted with the sliding type isolating knife through the flexible connection penetrating through the middle clapboard layer, so that the vacuum arc extinguish chamber is electrically connected with the sliding type isolating knife; simultaneously, the insulating cap structure that the second casing of second part right side installation side direction extends, the insulating requirement between better reaching isolation sword and the vacuum interrupter moves the end realizes the inseparable combination of vacuum fracture and isolation fracture, and the integration is effectual and the volume is littleer, can not influence each other.

Drawings

FIG. 1 is a schematic perspective view of an embedded pole in an embodiment;

FIG. 2 is a front view of the embedded pole in the embodiment;

fig. 3 is a first cross-sectional view of the embedded pole in the embodiment in a front view, wherein the isolation switch is in a switching-off state;

fig. 4 is a second cross-sectional view of the embedded pole in the embodiment in a front view, wherein the isolation switch is in a closing state;

FIG. 5 is a left side view of the embedded pole in the embodiment;

fig. 6 is a right side view of the embedded pole in the embodiment.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 6, the embedded pole provided in this embodiment includes a first portion and a second portion; the first part comprises a first shell 10, a vacuum arc extinguish chamber 21, an insulating pull rod 23, a flexible connection 24, a lower wire outlet seat (not shown), an upper wire outlet seat 25 and a sliding type isolation knife 30, wherein the first shell 10 is formed with a left installation side 12 and a right installation side 13 which are isolated and arranged oppositely, specifically, the first shell 10 is of an integrally formed structure, a partition plate layer 11 is arranged at the middle position, the left installation side 12 and the right installation side 13 are respectively positioned at the left side and the right side of the partition plate layer 11, and namely, the left installation side 12 and the right installation side 13 are isolated through the partition plate layer 11 in the middle.

The left mounting side 12 is formed with a vacuum arc extinguishing chamber (not shown) and a switching-on and switching-off operation chamber 102 located above the vacuum arc extinguishing chamber, and the switching-on and switching-off operation chamber 102 has an upper opening; the right mounting side 13 is formed with an isolated knife operating cavity 103.

The vacuum arc-extinguishing chamber 21 is assembled in the vacuum arc-extinguishing chamber, and specifically, the static end of the vacuum arc-extinguishing chamber faces downwards, and the movable end of the vacuum arc-extinguishing chamber faces upwards. The lower outgoing line seat is arranged at the lower end of the first shell 10 and connected with the static end of the vacuum arc extinguishing chamber 21, the insulating pull rod 23 is arranged in the switching-on/off operation chamber 102 and connected with the movable end of the vacuum arc extinguishing chamber 21 to drive the movable end of the vacuum arc extinguishing chamber 21 to perform switching-on/off operation, and the upper end of the insulating pull rod extends out of the switching-on/off operation chamber 102 to be connected with a driving device. The switching-on/off operation cavity 102 is arranged to better isolate and protect the movable end of the vacuum arc-extinguishing chamber 21.

The upper wire outlet seat 25 is an annular wire outlet seat and is fixed in the isolation knife operating cavity 103, the sliding isolation knife 30 is sleeved in the upper wire outlet seat 25 and can slide up and down, one end of the flexible connection 24 is connected with the moving end of the vacuum arc-extinguishing chamber 21, and the other end of the flexible connection passes through the partition plate layer 11 for isolating the left mounting side 12 from the right mounting side 13 and is connected to the upper wire outlet seat 25; specifically, the partition plate layer 11 is provided with a notch (not shown) penetrating through the opening/closing operation cavity 102 and the isolation knife operation cavity 103, and the flexible connection 24 is arranged through the notch.

The second part comprises a second shell 40, an upper isolation blade fixed contact 52 and an upper isolation blade spring contact 51, the second shell 40 is fixed at the upper end of the first shell 10, an insulating cap 41 extends towards the right installation side 13, the upper isolation blade spring contact 51 is assembled on the insulating cap 41 and faces downwards to correspond to the sliding isolation blade 30, the sliding isolation blade 30 slides upwards to be capable of abutting against the upper isolation blade spring contact 51 to realize electric contact, namely, the isolation switch shown in fig. 4 is in a closing state, and the sliding isolation blade 30 slides downwards to be separated from the upper isolation blade spring contact 51 to realize opening, as shown in fig. 3. The upper stationary isolation blade contact 52 is mounted on the insulator cap 41 and is connected to the upper isolation blade spring contact 51.

When carrying out the electricity and connecting, go up isolation sword static contact 52 and be used for connecting the inlet wire end, and the base of being qualified for the next round of competitions is used for connecting the outlet wire end down, and when isolation switch and vacuum interrupter 21 all were in the combined floodgate state, the flow direction of electric current was: the upper isolation knife static contact 52 → the upper isolation knife spring contact 51 → the sliding isolation knife 30 → the upper wire outlet seat 25 → the flexible connection 24 → the vacuum arc-extinguishing chamber 21 → the lower wire outlet seat, the current flows from the top to the bottom in sequence, the layout is good, and the work is stable.

According to the solid-sealed polar pole provided by the scheme, the vacuum arc extinguish chamber 21 and the sliding type isolating knife 30 are integrated together, so that a good isolating effect is achieved; the movable end of the vacuum arc extinguish chamber 21 is electrically contacted with the sliding type isolation knife 30 through the flexible connection 24 which is connected to the middle clapboard layer 11 in a penetrating way, so that the vacuum arc extinguish chamber 21 is electrically connected with the sliding type isolation knife 30; meanwhile, the insulating cap 41 structure extending towards the right mounting side 13 of the second shell 40 of the second part better meets the insulating requirement between the isolating knife and the moving end of the vacuum arc-extinguishing chamber 21, the vacuum fracture and the isolating fracture are tightly combined, the integration effect is good, the size is smaller, and the mutual influence cannot be caused.

Further, in this embodiment, a fixing threaded hole 14 is formed on an outer side surface of the left mounting side 12, and is used for fixing to the breaker frame, so as to realize fixing with the breaker frame. The lower outlet base is arranged at the lower end of the right mounting side 13 of the first housing 10, and is connected with the static end of the vacuum arc-extinguishing chamber 21 through the lower outlet of the pole arranged in the first housing 10. Specifically, a lower outlet mounting seat 106 is formed at a position below the isolation knife operating cavity 103, and the lower outlet mounting seat is assembled on the lower outlet mounting seat 106. The position of the lower wire outlet seat is arranged outwards after the pole is fixed, so that the lower wire outlet seat is convenient to connect with a wire outlet end. Of course, in other embodiments, this is not limiting.

Further, in this embodiment, the upper wire outlet seat 25 includes an annular conductive seat and a contact finger spring disposed on an inner annular surface of the annular conductive seat, and the contact finger spring elastically abuts against the sliding type isolation blade 30 to form an electrical contact. The upper wire outlet base 25 is electrically contacted with the sliding type isolation knife 30, and the up-and-down movement of the sliding type isolation knife 30 is not hindered. The effect is good. Of course, in other embodiments, other slip-fit arrangements that enable electrical contact may be used.

Further, in this embodiment, the isolation knife operating cavity 103 has an outer opening for abdicating the driving arm connected to the sliding isolation knife 30, and a top opening for abdicating the up-and-down movement of the sliding isolation knife 30. The upper outgoing line seat 25 is assembled at the top opening position of the isolation knife operating cavity 103, and thus the upper outgoing line seat 25 can be far away from the position of the lower outgoing line seat and the position of the movable end of the vacuum arc extinguish chamber 21, and the insulation effect is better. Of course, in other embodiments, this is not limiting.

Specifically, in this embodiment, the sliding type isolation knife 30 includes a fixed guide rod 31, an isolation knife driving seat 33, and a conductive cylinder 32, the fixed guide rod 31 is vertically disposed and fixed in the isolation knife operating cavity 103, and more specifically, the lower end of the fixed guide rod 31 is connected to a transverse fixing rod 34, and two ends of the transverse fixing rod 34 are respectively fixed on two side walls forming the isolation knife operating cavity 103, so as to implement the disposition of the fixed guide rod 34. The conductive tube 32 is provided with a guide inner hole 321, the conductive tube 32 is sleeved in the upper wire outlet seat 25, the guide inner hole 321 is sleeved with the fixed guide rod 31, and the vertical movement is realized through the matching of the guide inner hole 321 and the fixed guide rod 31. The isolation knife driving seat 33 is fixedly connected with the conductive cylinder 32, the isolation knife driving seat 33 is used for being connected with a driving arm, the conductive cylinder 32 is driven by the driving arm to move up and down, and the isolation knife switch is switched on and off by matching the conductive cylinder 32 with the upper isolation knife spring contact piece 51. Simple structure and stable action. Of course, in other embodiments, the structure of the sliding type isolation knife 30 is not limited thereto.

More specifically, in this embodiment, the fixed guide rod 31 includes a rod portion 311 and a guide ring 312 sleeved on the rod portion 311, a diameter of the rod portion 311 is smaller than an aperture of the guide inner hole 321 of the conductive tube 32, and the guide ring 312 is adapted to the guide inner hole 321 of the conductive tube 32 for guiding contact matching. So set up, the area of contact between conductive cylinder 32 and the fixed guide bar 31 reduces, when guaranteeing to play the direction, fine reduction the contact friction between the two for the action is more smooth and easy, stable.

Further, in this embodiment, the outer edge of the insulation cap 41 further extends downward to form an isolation brim 411, which can effectively isolate and protect the electrical connection between the upper isolation blade spring contact 51 and the sliding isolation blade 30. More preferably, the isolation visor 411 completely covers the periphery of the upper isolation blade spring contact piece 51 and extends downwards to exceed the upper isolation blade spring contact piece 51, so that the upper isolation blade spring contact piece 51 is completely hidden, and the isolation effect is better and more stable. Of course, in other embodiments, this is not limiting.

Further, in this embodiment, the upper isolation blade fixed contact 52 is disposed upward, and is formed at the top of the whole embedded pole, so that the space is large, and the wiring operation is easy to perform.

More specifically, in the practical application, can set up two or three solid utmost point posts that seal side by side in a circuit breaker frame, for insulating the isolation with the wiring end between the adjacent solid utmost point post, in this embodiment, second casing 40 still upwards extends and has keeps apart protruding wall 42, and setting through keeping apart protruding wall 42 comes fine insulating isolation to the wiring end between the adjacent solid utmost point post, and is effectual. Of course, in other embodiments, this is not limiting.

Specifically, in this embodiment, the first housing and the second housing are made of epoxy resin, and the epoxy resin is well molded and has good insulating property. Of course, in other embodiments, other materials capable of achieving insulation may be used.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides an gu seal utmost point post which characterized in that: comprises a first part and a second part;

the first part comprises a first shell, a vacuum arc extinguish chamber, an insulating pull rod, a flexible connection, a lower wire outlet seat, an upper wire outlet seat and a sliding type isolation knife, wherein the first shell is provided with a left installation side and a right installation side which are isolated and arranged oppositely, a vacuum arc extinguish chamber and a switching-closing operation chamber positioned above the vacuum arc extinguish chamber are formed on the left installation side, and the switching-closing operation chamber is provided with an upper opening; an isolation knife operating cavity is formed on the right mounting side;

the vacuum arc-extinguishing chamber is assembled in the vacuum arc-extinguishing chamber, the lower wire outlet seat is arranged at the lower end of the first shell and connected with the static end of the vacuum arc-extinguishing chamber, the insulating pull rod is arranged in the opening and closing operation cavity and connected with the movable end of the vacuum arc-extinguishing chamber, the upper wire outlet seat is an annular wire outlet seat and is fixed in the isolation knife operation cavity, the sliding isolation knife is sleeved in the upper wire outlet seat and can slide up and down, one end of the flexible connection is connected with the movable end of the vacuum arc-extinguishing chamber, and the other end of the flexible connection penetrates through the partition plate layer for isolating the left installation side and the right installation side and is connected with the upper wire outlet seat;

the second part comprises a second shell, an upper isolation knife fixed contact and an upper isolation knife spring contact piece, the second shell is fixed at the upper end of the first shell, an insulating cap extends towards the right installation side, the upper isolation knife spring contact piece is assembled on the insulating cap and faces downwards to correspond to the sliding type isolation knife, and the upper isolation knife fixed contact is assembled on the insulating cap and connected with the upper isolation knife spring contact piece.

2. The embedded pole of claim 1, wherein: the outer side surface of the left mounting side is provided with a fixing threaded hole, the lower wire outlet seat is arranged at the lower end position of the right mounting side of the first shell, and the lower wire outlet seat is arranged at the static end of the vacuum arc extinguish chamber through a pole arranged in the first shell.

3. The embedded pole of claim 1, wherein: the upper outgoing line seat comprises an annular conductive seat and a contact finger spring arranged on the inner ring surface of the annular conductive seat, and the contact finger spring is elastically abutted against the sliding type isolation knife to form electric contact.

4. The embedded pole of claim 1, wherein: the isolation knife operation cavity is provided with an outer side opening and a top opening, and the upper wire outlet seat is assembled at the top opening of the isolation knife operation cavity.

5. The embedded pole of claim 1 or 4, wherein: the sliding type isolation knife comprises a fixed guide rod, an isolation knife driving seat and a conductive cylinder, wherein the fixed guide rod is vertically arranged and fixed in an isolation knife operation cavity, the conductive cylinder is provided with a guide inner hole, the conductive cylinder is sleeved in an upper wire outlet seat, the guide inner hole is sleeved with the fixed guide rod, and the isolation knife driving seat is fixedly connected with the conductive cylinder.

6. The embedded pole of claim 5, wherein: the fixed guide rod comprises a rod part and a guide ring sleeved on the rod part, the diameter of the rod part is smaller than the aperture of the guide inner hole of the conductive cylinder, and the guide ring is matched with the guide inner hole of the conductive cylinder so as to be in guide contact fit.

7. The embedded pole of claim 1, wherein: the outer edge of the insulating cap also extends downwards to form an isolating brim.

8. The embedded pole of claim 7, wherein: the isolation brim completely covers the periphery of the upper isolation blade spring contact blade and extends downwards to exceed the upper isolation blade spring contact blade.

9. The embedded pole of claim 1, wherein: the upper isolation knife fixed contact is arranged upwards.

10. The embedded pole of claim 9, wherein: the second shell also extends upwards to form a separation convex wall.

Images