CN205303322U - Vacuum interrupter with sign effect - Google Patents

Abstract

The utility model relates to a vacuum interrupter with sign effect, including one shell (1), move and be provided with one section bellows (8) in conducting rod (5), the outside cover of static contact (6) and moving contact (7) has contact shield cover (9), outside the overlapping of bellows (8) has bellows shield cover (10), and the outer wall of shell (1) is shirt rim structure (13), and the center of shell (1) one side outer wall is located to plane (11), and it has strengthening rib (12) all to weld on static contact (6), moving contact (7), and strengthening rib (12) go up to open there are four straight flute (12.1). This kind of vacuum interrupter with sign effect has the effect of marking, reduces the collision of contact rigidity, convenient forced installation.

Description

There is the vacuum interrupter of mark action

Technical field

This utility model relates to a kind of vacuum interrupter with mark action.

Background technology

Vacuum interrupter, have another name called vacuum switch tube, it it is the core component of mesohigh power switch, its Main Function is, by can blow-out suppress electric current rapidly after managing the excellent insulating properties of interior vacuum and making mesohigh circuitry cuts power supply, avoid accident and unexpected generation, be mainly used in the transmission & distribution electric control system of electric power, be also applied to the distribution systems such as metallurgy, mine, oil, chemical industry, railway, broadcast, communication, industry high-frequency heating. There is energy-conservation, material-saving, fire prevention, the feature such as explosion-proof, volume is little, life-span length, maintenance cost are low, reliable and pollution-free. Vacuum interrupter is divided into again arc extinguishing chamber for breaker and on-load switch arc-chutes purposes, and arc-extinguishing chamber of circuit breaker is mainly used in the transformer station in power department and electrical network facilities, and on-load switch arc-chutes are mainly used in the terminal use of electrical network.

But after the contact of conventional vacuum interrupter generation electric arc, after arc, dielectric strength resume speed is relatively slow, and arc stiffness is higher, and corrosion rate is very fast, causes that the drop-out current ability of vacuum interrupter is poor, and have impact on its service life.

The simultaneously quality tracing of vacuum interrupter manufacturer and product brand, its unique designation becomes people in the market competition and the technology requirement expanding market, and the vacuum interrupter of routine only uses one-dimension code tag identifier, it is impossible to embody the brand of producer, it is impossible to meet the demand that product is growing.

And vacuum interrupter is in making process, moving contact forms rigid collision with static contact, easily produce spring, in vacuum circuit breaker, mechanical property produce spring more than more than 3ms, small?gap suture arcing between two contact electrodes, increase the weight of the electric scaling loss of electrode, have a strong impact on the vacuum interrupter life-span, electrical network is impacted simultaneously, produce overvoltage.

The encapsulating of conventional vacuum interrupter adopts drum type brake uniformly to cover bag, in process of press in, each point of whole arc-chutes outsourcing front cover is stress point, not only need very big pressing-in force, and the air gap produced in process of press in cannot be discharged, further increase the difficulty assembling press-in, and since it is desired that pressure excessive, often very easily damage vacuum interrupter by pressure, make vacuum interrupter gas leakage and scrap.

Utility model content

This utility model is in that to overcome above-mentioned deficiency, it is provided that one has marked effect, reduces contact rigid collision, facilitates forced installation, the vacuum interrupter that after arc, dielectric strength resume speed is fast.

The purpose of this utility model is achieved in that

A kind of vacuum interrupter with mark action, including a shell, described shell is metallization porcelain shell, the top of described shell is provided with quiet end cap, outer casing bottom is provided with moved end lid, the center vertical of described quiet end cap is installed with a static conductive rod, the center vertical of moved end lid is installed with a moving conductive rod, the bottom of described static conductive rod is fixed with static contact, the top of described moving conductive rod is fixed with moving contact, described static contact and moving contact cooperate, described moving conductive rod is provided with one section of corrugated tube, the outside of described static contact and moving contact is cased with contact shield cover, the outside of described corrugated tube is cased with bellows shield cover,

The outer wall of described shell is skirt border structure, and corrugated, and the center of shell side outer wall is plane but not corrugated;

All being welded with reinforcement on described static contact, moving contact, described reinforcement is spherical in shape, and the bottom welding of the top surface of this spherical reinforcement and static contact and moving contact is fixed, and described reinforcement has four straight troughs.

This utility model has the vacuum interrupter of mark action and has the advantage that

This vacuum interrupter with mark action passes through at static contact, the outside sheathed contact shield cover of moving contact, and at the outside sheathed bellows shield cover of corrugated tube, so that vacuum interrupter has dielectric strength resume speed after higher arc, less arc stiffness and corrosion rate, and then improve drop-out current ability and the service life of vacuum interrupter.

Realize vacuum interrupter exposed surface by means such as control laser instrument simultaneously and form Quick Response Code mark, serve good marked effect, such that it is able to embody the brand of producer, meet the demand that product is growing.

And on static contact and moving contact, added reinforcement, such structure both ensure that the sufficient intensity needed for contact, the deformation produced further through the arcuate surfaces of spherical structure absorbs energy during combined floodgate, reduces because the spring between the rigid collision moving contact and the static contact that cause.

The outer wall of shell designs for shirt rim, not only meets insulating requirements, increases creep age distance, and in forced assembling process, and the external diameter of shirt rim is big, and required power is just only small, it is possible to be easily pressed into, and is more beneficial for facilitating forced installation, and is easy to air gap and runs out of.

Accompanying drawing explanation

Fig. 1 is the structural representation that this utility model has the vacuum interrupter of mark action.

Fig. 2 is the structural representation of Fig. 1 housing.

Fig. 3 is the enlarged drawing at static contact place in Fig. 1.

Fig. 4 is the top view of reinforcement in Fig. 3.

Wherein: shell 1, quiet end cap 2, moved end lid 3, static conductive rod 4, moving conductive rod 5, static contact 6, moving contact 7, corrugated tube 8, contact shield cover 9, bellows shield cover 10, plane 11, reinforcement 12, straight trough 12.1, skirt border structure 13.

Detailed description of the invention

Referring to Fig. 1 to Fig. 4, this utility model relates to a kind of vacuum interrupter with mark action, including a shell 1, described shell 1 is metallization porcelain shell, the top of described shell 1 is provided with quiet end cap 2, moved end lid 3 it is provided with bottom shell 1, the center vertical of described quiet end cap 2 is installed with a static conductive rod 4, the center vertical of moved end lid 3 is installed with a moving conductive rod 5, the bottom of described static conductive rod 4 is fixed with static contact 6, the top of described moving conductive rod 5 is fixed with moving contact 7, described static contact 6 cooperates with moving contact 7, when moving conductive rod 5 pulls downward on, moving contact 7 separates with static contact 6, when moving conductive rod 5 is loosed one's grip, moving contact 7 contacts with static contact 6, described moving conductive rod 5 is provided with one section of corrugated tube 8, the outside of described static contact 6 and moving contact 7 is cased with contact shield cover 9, the outside of described corrugated tube 8 is cased with bellows shield cover 10, by at static contact, the outside sheathed contact shield cover of moving contact, and at the outside sheathed bellows shield cover of corrugated tube, so that vacuum interrupter has dielectric strength resume speed after higher arc, less arc stiffness and corrosion rate, and then improve drop-out current ability and the service life of vacuum interrupter.

The outer wall of described shell 1 is skirt border structure 13, and it is corrugated, the center of shell 1 side outer wall is plane 11 but not corrugated, this plane 11 place is used for printing Quick Response Code mark, this Quick Response Code mark serves good marked effect, such that it is able to embody the brand of producer, meet the demand that product is growing.

Described static contact 6, moving contact 7 are all welded with reinforcement 12, described reinforcement 12 is spherical in shape, the bottom welding of the top surface of this spherical reinforcement 12 and static contact 6 and moving contact 7 is fixed, described reinforcement 12 has four straight troughs 12.1, described straight trough 12.1 is used for increasing deformation produced by spherical reinforcement 12.1 during collision, thus energy when absorbing combined floodgate, reduce because the spring between the rigid collision moving contact and the static contact that cause.

The outer wall of described shell 1 is skirt border structure 13, not only meet insulating requirements, increase creep age distance, and in forced assembling process, the external diameter of skirt border structure 13 is bigger than the external diameter of conventional straight tube, and required power is just only small, it is possible to be easily pressed into, it is more beneficial for facilitating forced installation, and is easy to air gap and runs out of.

Claims (1)

1. a vacuum interrupter with mark action, it is characterized in that: include a shell (1), described shell (1) is metallization porcelain shell, the top of described shell (1) is provided with quiet end cap (2), shell (1) bottom is provided with moved end lid (3), the center vertical of described quiet end cap (2) is installed with a static conductive rod (4), the center vertical of moved end lid (3) is installed with a moving conductive rod (5), the bottom of described static conductive rod (4) is fixed with static contact (6), the top of described moving conductive rod (5) is fixed with moving contact (7), described static contact (6) and moving contact (7) cooperate, described moving conductive rod (5) is provided with one section of corrugated tube (8), the outside of described static contact (6) and moving contact (7) is cased with contact shield cover (9), the outside of described corrugated tube (8) is cased with bellows shield cover (10),

The outer wall of described shell (1) is skirt border structure (13), and corrugated, and the center of shell (1) side outer wall is plane (11) but not corrugated;

Described static contact (6), moving contact (7) are all welded with reinforcement (12), described reinforcement (12) is spherical in shape, the bottom welding of the top surface of this spherical reinforcement (12) and static contact (6) and moving contact (7) is fixed, and described reinforcement (12) has four straight troughs (12.1).