阅读说明：本技术 一种户外高压真空断路器 (Outdoor high-voltage vacuum circuit breaker ) 是由 席昌丽 于 2020-12-22 设计创作，主要内容包括：本发明涉及电路开关技术领域,且公开了一种户外高压真空断路器,包括绝缘筒,绝缘筒的顶部固定安装有上出线端子,绝缘筒的上半部的内部开设有灭弧室,灭弧室内部的顶部固定安装有与上出线端子线性连接的静触头,灭弧室内部的底部固定安装有动触头,所述动触头底部的中部固定连接有绝缘柱,所述绝缘柱的外圈活动套接有导电套,所述导电支撑杆伸入到绝缘筒内部的一端活动安装有与导电套外圈适配的导电轮,所述绝缘筒内部位于导电套顶部外圈的位置固定安装有U形磁铁,所述绝缘筒内部远离导电轮的一侧固定安装有磁块,利用磁铁和导电体的结构设计可以实现整体导电的稳定性和安全性,提高了使用寿命。(The invention relates to the technical field of circuit switches and discloses an outdoor high-voltage vacuum circuit breaker which comprises an insulating cylinder, wherein an upper outgoing line terminal is fixedly arranged at the top of the insulating cylinder, an arc extinguish chamber is arranged in the upper half part of the insulating cylinder, a static contact linearly connected with the upper outgoing line terminal is fixedly arranged at the top of the arc extinguish chamber, a moving contact is fixedly arranged at the bottom of the arc extinguish chamber, an insulating column is fixedly connected with the middle part of the bottom of the moving contact, a conductive sleeve is movably sleeved on the outer ring of the insulating column, a conductive wheel matched with the outer ring of the conductive sleeve is movably arranged at one end, extending into the insulating cylinder, of a conductive support rod, a U-shaped magnet is fixedly arranged at the position of the outer ring at the top of the conductive sleeve in the insulating cylinder, a magnetic block is fixedly arranged at one side, far away from the conductive wheel, in the, the service life is prolonged.)

1. The utility model provides an outdoor high-pressure vacuum circuit breaker, including insulating cylinder (1), leading-out terminal (2) have been gone up to the top fixed mounting of insulating cylinder (1), explosion chamber (3) have been seted up to the inside of the first half of insulating cylinder (1), the inside top fixed mounting of explosion chamber (3) has static contact (4) of being connected with last leading-out terminal (2) linearity, the inside bottom fixed mounting of explosion chamber (3) has moving contact (5), the inner wall fixed mounting at explosion chamber (3) middle part has shield cover (6), bellows (9) with insulating cylinder (1) inner wall fixed connection have been cup jointed in the outer lane activity of moving contact (5), its characterized in that: a lower wire outgoing terminal (7) is fixedly mounted on one side of the middle of the insulating cylinder (1), a current transformer (8) is fixedly mounted on the outer side of the lower wire outgoing terminal (7), an insulating column (10) is fixedly connected to the middle of the bottom of the moving contact (5), a conductive sleeve (11) is movably sleeved on the outer ring of the insulating column (10), a contact pressure spring (12) is fixedly connected to the bottom of the insulating column (10), an insulating pull rod (13) is fixedly connected to the bottom of the contact pressure spring (12), a conductive body (14) is fixedly mounted inside the lower wire outgoing terminal (7), a sliding groove (1401) is formed in the middle of the conductive body (14), a conductive support rod (15) with one end extending into the insulating cylinder (1) is movably sleeved inside the sliding groove (1401), a conductive wheel (16) matched with the conductive sleeve (11) in outer ring is movably mounted at one end of the conductive support rod (15) extending into the insulating cylinder (1, a U-shaped magnet (17) is fixedly mounted at a position, located on the outer ring of the top of the conductive sleeve (11), in the insulating cylinder (1), and a magnetic block (18) is fixedly mounted on one side, far away from the conductive wheel (16), in the insulating cylinder (1).

2. An outdoor high-voltage vacuum circuit breaker according to claim 1, characterized in that: the middle part of the conductive sleeve (11) is provided with a straight notch through hole (1101), and the conductive sleeve (11) is made of ferromagnetic materials and is in contact with the moving contact (5) for conducting electricity.

3. An outdoor high-voltage vacuum circuit breaker according to claim 2, characterized in that: the diameter of the middle of the conductive support rod (15) is increased, a resisting spring (1402) is fixedly connected between the middle of the conductive support rod and the inner wall of the sliding groove (1401), and the distance between the conductive wheel (16) and the conductive sleeve (11) when the breaker is powered off is smaller than the length of the straight groove through hole (1101).

4. An outdoor high-voltage vacuum circuit breaker according to claim 1, characterized in that: the U-shaped magnet (17) and the magnetic block (18) are respectively positioned above and below the conductive wheel (16) in the vertical direction, and the bottom position of the conductive sleeve (11) is higher than that of the magnetic block (18) when the contact is contacted.

5. An outdoor high-voltage vacuum circuit breaker according to claim 1, characterized in that: the conductive sleeve (11), the conductive wheel (16), the conductive support rod (15) and the conductive body (14) are in contact conduction, the ampere force applied to the conductive sleeve (11) when the conductive sleeve is electrified is greater than the sum of the friction resistance received by the resisting spring (1402) and the conductive sleeve (11), and the sleeve of the conductive sleeve (11) on the insulating column (10) is inclined to the side of the conductive wheel (16).

Technical Field

The invention relates to the technical field of circuit switches, in particular to an outdoor high-voltage vacuum circuit breaker.

Background

Electricity is a very much required resource today, half of the electricity that generates to the power plant is carried through the high-voltage line, and there is certain danger in the high-voltage transmission in reality, need design protection switching element etc. in the circuit to carry out the outage when dangerous in order to improve the security, the common one is exactly vacuum circuit breaker, it utilizes inside vacuum to carry out the arc extinguishing, have small, light in weight, be applicable to frequent operation, the advantage that the arc extinguishing need not be overhauld, the position of carrying out the arc extinguishing is in the arc extinguishing chamber, though it is suitable for extensively, but still has some problems:

1. the movable end of current high-voltage vacuum circuit breaker's explosion chamber bottom utilizes the flexible coupling to be connected with between the terminal that goes out the line down, though this kind of connected mode electric conductivity is good but its life lacks very low, especially when the arc extinguishing action is frequent, because the upper and lower constantly removal of moving contact, will cause the condition that the flexible coupling part breaks off, will cause whole circuit to take place the condition of opening circuit like this, the end of a thread of disconnection still probably causes the condition of electric leakage and then produces danger in high-voltage line, thereby the wire mode of adoption flexible coupling causes inside copper line to appear partial disconnection under the condition of dragging from top to bottom very easily simultaneously and has influenced holistic electric conductivity.

2. High-voltage vacuum circuit breaker utilizes the separation and reunion between the sound contact to realize the effect of broken circuit, use in the actual because can not reach absolute vacuum in the explosion chamber, and along with contact separation's time and frequency constantly increase between the contact, cause the separation arc extinguishing between the contact thoroughly very easily, will cause the circuit to not form complete open circuit like this, and then will cause dangerous condition, and adopt the mode of flexible coupling to conduct and just appear the bad condition of contact because of the damage of flexible coupling easily after using the certain time.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the outdoor high-voltage vacuum circuit breaker which has the advantages of good conductivity and stable circuit breaking and solves the problems in the background technology.

The invention provides the following technical scheme: an outdoor high-voltage vacuum circuit breaker comprises an insulating cylinder, wherein an upper outgoing line terminal is fixedly mounted at the top of the insulating cylinder, an arc extinguish chamber is arranged in the upper half part of the insulating cylinder, a static contact linearly connected with the upper outgoing line terminal is fixedly mounted at the top of the inner part of the arc extinguish chamber, a moving contact is fixedly mounted at the bottom of the inner part of the arc extinguish chamber, a shielding cover is fixedly mounted on the inner wall of the middle part of the arc extinguish chamber, a corrugated pipe fixedly connected with the inner wall of the insulating cylinder is movably sleeved on the outer ring of the moving contact, a lower outgoing line terminal is fixedly mounted on one side of the middle part of the insulating cylinder, a current transformer is fixedly mounted on the outer side of the lower outgoing line terminal, an insulating column is fixedly connected at the middle part of the bottom of the moving contact, a conductive sleeve is movably, the inside fixed mounting of leading-out terminal has the electric conductor down, the spout has been seted up at the middle part of electric conductor, the inside activity of spout has been cup jointed one end and has been deepened the inside electrically conductive bracing piece of insulating cylinder, the electrically conductive bracing piece stretch into the inside one end movable mounting of insulating cylinder have with the electrically conductive wheel of electrically conductive cover outer lane adaptation, the inside position fixed mounting who is located electrically conductive cover top outer lane of insulating cylinder has U-shaped magnet, the inside one side fixed mounting who keeps away from electrically conductive wheel of insulating cylinder has the magnetic path.

Preferably, the middle part of the conductive sleeve is provided with a straight notch through hole, and the conductive sleeve is made of ferromagnetic materials and is in contact with the moving contact for conducting electricity.

Preferably, the diameter of the middle part of the conductive support rod is increased, the middle part of the conductive support rod is fixedly connected with the inner wall of the sliding groove, and the distance between the conductive wheel and the conductive sleeve is smaller than the length of the straight groove of the through hole of the straight groove opening when the breaker is powered off.

Preferably, the U-shaped magnet and the magnetic block are respectively located at the upper position and the lower position of the conductive wheel in the vertical direction, and the bottom position of the conductive sleeve is higher than that of the magnetic block when the contact is contacted.

Preferably, the conductive sleeve, the conductive wheel, the conductive support rod and the conductive body are in contact conduction, the ampere force applied to the conductive sleeve when the conductive sleeve is electrified is greater than the sum of the friction resistance received by the resisting spring and the conductive sleeve, and the sleeve of the conductive sleeve on the insulating column leans to the side of the conductive wheel to have a certain inclination.

The invention has the following beneficial effects:

1. through setting up the electric conductor and cup jointed electrically conductive bracing piece and cup jointed electrically conductive wheel at electrically conductive bracing piece's tip, cup joint electrically conductive cover and electrically conductive wheel contact bottom the moving contact simultaneously, compare in prior art, utilize the electrically conductive cover electrically conductive can effectually avoid the condition that the flexible coupling breaks off because of operating frequency with the electrically conductive contact of taking turns, the electric conductor is inside to be set up simultaneously to the spring and guaranteed to have pressure between electrically conductive wheel and the electrically conductive cover, can guarantee that it avoids the bad condition of contact in the condition of contact all the time when the circuit is electrically conductive, electrically conductive wheel can rotate and also has reduceed the friction simultaneously, durable use more.

2. Through set up U-shaped magnet and magnetic path in the outside at conductive sleeve, and the straight notch through-hole has been seted up to conductive sleeve inside, compare in prior art, the magnetic field that utilizes U-shaped magnet can produce ampere force when conductive sleeve circular telegram, utilize this ampere force to make conductive sleeve near the electrically conductive wheel realization electrically conductive effect, the bad contact that the soft joint can appear has been avoided and the electrically conductive condition of circuit is influenced, and also can utilize the magnetic force of U-shaped magnet tip greatly and the combined action of magnetic path to drive conductive sleeve to keeping away from electrically conductive wheel one side magnetic force with conductive sleeve when the contact breaks off and thereby realized two of contact and conductive cover part in making whole circuit and open circuit, guarantee the security that the problem is opened circuit in the contact, do benefit to high-voltage vacuum circuit breaker and guarantee holistic steady operation.

Drawings

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

FIG. 2 is a schematic view of a contact in contact with the structure of the present invention;

FIG. 3 is a schematic view of the contact of the present invention when open;

FIG. 4 is a cross-sectional view of a lower terminal of the structure of the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 2;

fig. 6 is a schematic diagram of the stress of the conductive sleeve with the structure of the invention.

In the figure: 1. an insulating cylinder; 2. an upper outlet terminal; 3. an arc extinguishing chamber; 4. static contact; 5. a moving contact; 6. a shield case; 7. a lower outlet terminal; 8. a current transformer; 9. a bellows; 10. an insulating column; 11. a conductive sleeve; 1101. a straight notch through hole; 12. a contact pressure spring; 13. an insulating pull rod; 14. an electrical conductor; 1401. a chute; 1402. resisting the spring; 15. a conductive support bar; 16. a conductive wheel; 17. a U-shaped magnet; 18. a magnetic block.

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. 1-6, an outdoor high-voltage vacuum circuit breaker includes an insulating cylinder 1, an upper outgoing line terminal 2 is fixedly installed at the top of the insulating cylinder 1, an arc extinguish chamber 3 is disposed inside the upper half of the insulating cylinder 1, a static contact 4 linearly connected with the upper outgoing line terminal 2 is fixedly installed at the top of the arc extinguish chamber 3, a moving contact 5 is fixedly installed at the bottom of the arc extinguish chamber 3, a shield 6 is fixedly installed on the inner wall of the arc extinguish chamber 3, a corrugated pipe 9 fixedly connected with the inner wall of the insulating cylinder 1 is movably sleeved on the outer ring of the moving contact 5, a lower outgoing line terminal 7 is fixedly installed at one side of the middle of the insulating cylinder 1, a current transformer 8 is fixedly installed at the outer side of the lower outgoing line terminal 7, an insulating column 10 is fixedly connected to the middle of the bottom of the moving contact 5, a conductive sleeve 11 is movably sleeved, the bottom fixedly connected with insulating pull rod 13 of contact pressure spring 12, the inside fixed mounting of leading-out terminal 7 has electric conductor 14 down, spout 1401 has been seted up at the middle part of electric conductor 14, spout 1401 inside activity has been cup jointed one end and has been deepened the inside electrically conductive bracing piece 15 of insulating cylinder 1, electrically conductive bracing piece 15 stretches into the inside one end movable mounting of insulating cylinder 1 have with the electrically conductive wheel 16 of the outer lane adaptation of conductive sleeve 11, the inside position fixed mounting that is located the outer lane of conductive sleeve 11 top of insulating cylinder 1 has U-shaped magnet 17, one side fixed mounting that electrically conductive wheel 16 was kept away from to insulating cylinder 1 inside has magnetic path 18.

Wherein, straight notch through-hole 1101 has been seted up at the middle part of conductive sleeve 11, conductive sleeve 11 adopt ferromagnetic material to make and electrically conductive with the contact between the moving contact 5, conductive sleeve 11 has electric conductivity, it can have the influence of magnetic force and ampere force very much simultaneously and make straight notch through-hole 1101 remove at the outer lane of insulated column 10 to realize electric connection and disconnection, straight notch through-hole 1101 makes conductive sleeve 11 only can produce the round trip movement of a direction moreover, can not produce the condition of rocking everywhere.

Wherein, the middle part diameter grow of electrically conductive bracing piece 15 and with the inner wall of spout 1401 between fixedly connected with support spring 1402, utilize to support spring 1402 can support electrically conductive bracing piece 15 to electrically conductive cover 11 direction tightly so that electrically conductive wheel 16 and electrically conductive cover 11 contact fully, avoid contact failure's the condition to take place, electrically conductive wheel 16 is less than the straight flute length of straight notch through-hole 1101 when the circuit breaker outage with the distance between electrically conductive cover 11, guarantee like this when electrically conductive cover 11 receives ampere force can support to press and compress tightly electrically conductive wheel 16, guarantee electrically conductive good.

The U-shaped magnet 17 and the magnetic block 18 are respectively located at the upper position and the lower position of the conductive wheel 16 in the vertical direction, the bottom position of the conductive sleeve 11 is higher than the position of the magnetic block 18 when the contacts are in contact, the magnetic block 18 cannot generate magnetic force on the conductive sleeve 11 when the contacts are in contact, the conductive sleeve 11 can be guaranteed to be in contact with the conductive wheel 16 to conduct electricity under the action of ampere force, the magnetic block 18 can attract the conductive sleeve 11 to one side far away from the conductive wheel 16 under the combined action of the U-shaped magnet 17 at the top in cooperation with the magnetic block 18 when the contacts are disconnected, the condition of insufficient power failure is avoided, and.

The conductive sleeve 11, the conductive wheel 16, the conductive support rod 15 and the conductive body 14 are in contact conduction, the ampere force applied to the conductive sleeve 11 when the conductive sleeve 11 is electrified is larger than the sum of the friction resistance received by the resisting spring 1402 and the conductive sleeve 11, the sleeve of the conductive sleeve 11 on the insulating column 10 leans against the conductive wheel 16 side to have a certain inclination, the contact between the conductive sleeve 11 and the conductive wheel 16 can be realized by the ampere force after the conductive sleeve is electrified so as to connect the whole circuit, the ampere force is lost after the power is off, the conductive sleeve 11 and the conductive wheel 16 are separated under the combined action of the U-shaped magnet 17 and the magnetic block 18 to realize further circuit breaking, the safety is ensured, the conductive sleeve 11 has a certain tendency to be close to the conductive wheel 16, and the electrification can be realized when the contact is contacted.

The working principle is that when the moving contact 5 is in contact with the static contact 4, the whole circuit is electrified, current passes through the conductive sleeve 11, the current in the conductive sleeve 11 is acted by ampere force under the action of a magnetic field formed by the U-shaped magnet 17, so that the conductive sleeve 11 and the conductive wheel 16 are fully contacted and conducted, meanwhile, the conductive support rod 15 is abutted by the abutting spring 1402, and the current is electrified through the conductive sleeve 11, the conductive wheel 16, the conductive support rod 15 and the conductive body 14, so that the condition of poor contact is avoided;

when the moving contact 5 is separated from the static contact 4, the insulating column 10 and the conductive sleeve 11 are driven downwards under the action of the insulating pull rod 13, the action of ampere force is lost under the condition that the contact is disconnected, and at the moment, the end magnetic force of the U-shaped magnet 17 and the magnetic force of the magnetic block 18 act together to drive the conductive sleeve 11 to move to the side far away from the conductive wheel 16, so that the separation of a contact circuit is realized, and the safety is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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.