CN210775755U

CN210775755U - On-line monitoring sensor for circuit breaker

Info

Publication number: CN210775755U
Application number: CN201921160633.3U
Authority: CN
Inventors: 蒋宇飞; 蒋焰云; 朱建国
Original assignee: Wuxi Symantec Technology Co ltd
Current assignee: Wuxi Symantec Technology Co ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-06-16
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses a circuit breaker on-line monitoring sensor, including sensor housing, sensor housing's outward appearance is the grub screw form, and sensor housing is the conductive metal material, first through-hole and second through-hole have been seted up to sensor housing's inside, and the shape of first through-hole and the shape of second through-hole are the cylinder type that the internal diameter is balanced, the right-hand member of first through-hole communicates with the left end of second through-hole, the left end of first through-hole extends to sensor housing's left surface. The utility model relates to a rational in infrastructure, it has the structural design of quick dismantlement, through annular groove S and rubber circle as the seal part between sensor and the vacuum circuit breaker, can further strengthen the sealed effect between sensor and the vacuum circuit breaker, realizes the rapid Assembly between sensor and the vacuum circuit breaker, when the sensor breaks down, can practice thrift maintenance duration and cost of maintenance.

Description

On-line monitoring sensor for circuit breaker

Technical Field

The utility model relates to the technical field of sensors, specifically a circuit breaker on-line monitoring sensor.

Background

The sensor is a device for detecting parameters such as temperature, humidity, pressure and the like, and is widely applied to various fields of social development and human life, such as industrial automation, agricultural modernization, aerospace technology, military engineering, robotics, resource development, ocean exploration, environmental monitoring, security, medical diagnosis, transportation, household appliances and the like.

What mention in this technique is a circuit breaker on-line monitoring sensor, mainly used detects vacuum circuit breaker's vacuum to whether the real empty room of monitoring vacuum circuit breaker leaks gas, present on-line monitoring sensor about vacuum circuit breaker mostly with circuit breaker integrated design, the dismantlement of being not convenient for, when the sensor breaks down, the degree of difficulty that can increase the detection maintenance is inevitable, maintenance duration and cost of maintenance are not enough practiced thrift, for this reason, we provide a circuit breaker on-line monitoring sensor and solve above problem.

SUMMERY OF THE UTILITY MODEL

One) technical problem to be solved

The utility model aims at providing a circuit breaker on-line monitoring sensor in order to compensate the not enough of prior art.

II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a breaker on-line monitoring sensor comprises a sensor shell, wherein the appearance of the sensor shell is in a flat-head screw shape, the sensor shell is made of a conductive metal material, a first through hole and a second through hole are formed in the sensor shell, the shape of the first through hole and the shape of the second through hole are both cylindrical with balanced inner diameters, the right end of the first through hole is communicated with the left end of the second through hole, the left end of the first through hole extends to the left side face of the sensor shell, and the right end of the second through hole extends to the right side face of the sensor shell;

the inner side wall of the first through hole is provided with an annular sealing groove, a sealing ring matched with the annular sealing groove is arranged inside the annular sealing groove, a metal sliding rod is sleeved inside the sealing ring, a spring and a sliding block are arranged inside the second through hole, the right end of the metal sliding rod sequentially penetrates through the spring and the sliding block and extends to the right side of the sliding block, the metal sliding rod is sleeved inside the spring in a sliding manner, the metal sliding rod and the sliding block are fixedly connected, the sliding block is in a disc shape, the diameter of the sliding block is slightly smaller than that of the second through hole, the sliding block can slide inside the second through hole, and the sliding block is made of conductive metal;

the inside of second through-hole is equipped with electrically conductive seat of metal and tubular metal resonator, the surface of tubular metal resonator and the inner wall fixed connection of second through-hole, the right-hand member of tubular metal resonator extends to the right flank of sensor housing, the fixed cover in inside of tubular metal resonator is equipped with the insulated column, the left surface of insulated column and the right flank fixed connection of the electrically conductive seat of metal, the inside of insulated column is fixed to be inlayed and is had the metal pole, the left end of metal pole extends to the left surface of insulated column and electrically connects with the electrically conductive seat of metal, the right-hand member of metal pole extends to the right side of insulated column.

Furthermore, the right end of the sensor shell is in a hexagon nut shape, and the left end of the sensor shell is in a screw rod shape with threads Q.

Further, the middle part of the sensor shell is provided with an annular groove S, the middle part of the sensor shell is sleeved with a rubber ring, and the rubber ring is arranged at the position of the annular groove S matched with the rubber ring.

Furthermore, the annular sealing groove and the sealing ring jointly form a sealing unit, and the number of the sealing units is at least three.

Furthermore, the metal conductive seat is composed of a conductive pressure spring and two conductive metal sheets, and the two metal conductive sheets are respectively fixed at the left end and the right end of the conductive pressure spring.

Furthermore, the outside cover of spring is equipped with the thrust cylinder, the thrust cylinder is located the left end of second through-hole, and the surface of thrust cylinder and the inner wall fixed connection of second through-hole.

III) beneficial effects

Compared with the prior art, this circuit breaker on-line monitoring sensor possesses following beneficial effect:

firstly, the method comprises the following steps: the utility model discloses a sensor housing is flat head screw form, and sensor housing 'S right-hand member is hexagon nut form, and the design of its left end for having screw thread Q' S the screw rod form can realize the quick dismantlement of the sensor in this technique, through annular groove S and rubber circle as the seal part between sensor and the vacuum circuit breaker, can further strengthen the sealed effect between sensor and the vacuum circuit breaker, realize the rapid Assembly between sensor and the vacuum circuit breaker, when the sensor breaks down, maintenance duration and cost of maintenance can be practiced thrift.

Secondly, the method comprises the following steps: the utility model discloses an annular seal groove and sealing washer of design for the seal part between metal slide bar and the first through-hole can guarantee the gas tightness between metal slide bar and the first through-hole, thereby guarantees the gas tightness between sensor and the vacuum circuit breaker, can improve the job stabilization nature and the reliability of sensor.

Drawings

FIG. 1 is a cross-sectional view of a sensor housing and its internal structure according to the present invention;

FIG. 2 is a view of the sensor housing of FIG. 1 in the direction of P according to the present invention;

FIG. 3 is a view of the sensor housing of FIG. 1 in the direction F according to the present invention;

fig. 4 is an enlarged schematic view of a structure a in fig. 1 according to the present invention.

In the figure: 1. a sensor housing; 2. a first through hole; 3. a second through hole; 4. a slider; 5. a metal slide bar; 6. a metal tube; 7. an insulating column; 8. a metal rod; 9. a metal conductive seat; 10. a spring; 11. a rubber ring; 12. an annular seal groove; 13. a seal ring; 14. a thrust cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: a breaker on-line monitoring sensor comprises a sensor shell 1, wherein the appearance of the sensor shell 1 is in a flat-head screw shape, the sensor shell 1 is made of a conductive metal material, a first through hole 2 and a second through hole 3 are formed in the sensor shell 1, the shape of the first through hole 2 and the shape of the second through hole 3 are both cylindrical with balanced inner diameters, the right end of the first through hole 2 is communicated with the left end of the second through hole 3, the left end of the first through hole 2 extends to the left side face of the sensor shell 1, and the right end of the second through hole 3 extends to the right side face of the sensor shell 1;

an annular sealing groove 12 is formed in the inner side wall of the first through hole 2, a sealing ring 13 matched with the annular sealing groove 12 is arranged inside the annular sealing groove 12, a metal sliding rod 5 is sleeved inside the sealing ring 13, a spring 10 and a sliding block 4 are arranged inside the second through hole 3, the right end of the metal sliding rod 5 sequentially penetrates through the spring 10 and the sliding block 4 and extends to the right side of the sliding block 4, the metal sliding rod 5 is sleeved inside the spring 10 in a sliding mode, the metal sliding rod 5 is fixedly connected with the sliding block 4, the sliding block 4 is in a disc shape, the diameter of the sliding block 4 is slightly smaller than that of the second through hole 3, the sliding block 4 can slide inside the second through hole 3;

the inside of second through-hole 3 is equipped with metal conducting seat 9 and tubular metal resonator 6, the surface of tubular metal resonator 6 and the inner wall fixed connection of second through-hole 3, the right-hand member of tubular metal resonator 6 extends to sensor housing 1's right flank, the inside fixed cover of tubular metal resonator 6 is equipped with insulated column 7, the left surface of insulated column 7 and the right flank fixed connection of metal conducting seat 9, the inside fixed embedding of insulated column 7 has metal pole 8, the left end of metal pole 8 extends to the left surface of insulated column 7 and is connected with metal conducting seat 9 electricity, the right-hand member of metal pole 8 extends to the right side of insulated column 7.

Further, the right end of the sensor housing 1 is in a hexagon nut shape, and the left end of the sensor housing 1 is in a screw rod shape with threads Q. Through the design of this scheme, be favorable to the installation of this sensor in the technique to dismantle.

Further, the middle part of the sensor shell 1 is provided with an annular groove S, the middle part of the sensor shell 1 is sleeved with a rubber ring 11, and the rubber ring 11 is arranged at the position of the annular groove S matched with the rubber ring 11. The annular groove S and the rubber ring 11 are used as sealing components between the sensor and the vacuum circuit breaker, so that the sealing effect between the sensor and the vacuum circuit breaker can be further enhanced, and the quick assembly between the sensor and the vacuum circuit breaker is realized.

Further, the annular sealing groove 12 and the sealing ring 13 together form a sealing unit, and the number of the sealing unit is at least three. The annular sealing groove 12 and the sealing ring 13 are used for sealing parts between the metal slide rod 5 and the first through hole 2, and the scheme can ensure the air tightness between the metal slide rod 5 and the first through hole 2.

Further, the metal conductive seat 9 is composed of a conductive pressure spring and two conductive metal sheets, and the two metal conductive sheets are respectively fixed at the left end and the right end of the conductive pressure spring. The metal conductive seat 9 is composed of a conductive pressure spring and two conductive metal sheets and is used for realizing the electric connection between the metal sliding rod 5 and the metal rod 8, wherein the design of the conductive pressure spring can play a good buffering effect.

Further, the outer portion of the spring 10 is sleeved with a thrust cylinder 14, the thrust cylinder 14 is located at the left end of the second through hole 3, and the outer surface of the thrust cylinder 14 is fixedly connected with the inner wall of the second through hole 3. In use, due to the air pressure difference, the metal sliding rod 5 and the sliding block 4 move to the left, so that the spring 10 is compressed to the left, and the thrust-stopping cylinder 14 can limit the compression degree of the spring 10 and avoid the damage of the spring 10 caused by over-compression.

The working principle is as follows: the left end of the sensor shell 1 is of a screw rod structure, the sensor shell is in threaded connection with a threaded hole matched with the vacuum chamber of the circuit breaker, the air tightness between the sensor shell 1 and the vacuum chamber of the circuit breaker is guaranteed through a rubber ring 11, the left end of the first through hole 2 is communicated with the vacuum chamber of the circuit breaker, the metal tube 6 is electrically connected with the negative electrode of the detection circuit, the metal rod 8 is electrically connected with the negative electrode of the detection circuit, when the vacuum chamber of the circuit breaker is in a vacuum state, the air pressure difference exists between the second through hole 3 and the first through hole 2, the sliding block 4 and the metal sliding rod 5 move to the left, the metal sliding rod 5 is not in contact with the metal conductive seat 9, and at the; when the vacuum chamber of the circuit breaker leaks air, no air pressure difference exists between the second through hole 3 and the first through hole 2, the sliding block 4 and the metal sliding rod 5 are caused to move to the right under the action of the elastic force of the spring 10, the metal sliding rod 5 is in contact with the metal conductive seat 9, at the moment, the metal pipe 6 is in conductive connection with the metal rod 8, and by integrating the processes, the condition that the circuit between the metal pipe 6 and the metal rod 8 is disconnected or closed is analyzed through the detection circuit, so that whether the vacuum chamber of the vacuum circuit breaker leaks air or not can be monitored.

It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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.

Claims

1. The utility model provides a circuit breaker on-line monitoring sensor, includes sensor housing (1), its characterized in that: the sensor shell (1) is flat-head screw-shaped, the sensor shell (1) is made of conductive metal, a first through hole (2) and a second through hole (3) are formed in the sensor shell (1), the first through hole (2) and the second through hole (3) are cylindrical and have balanced inner diameters, the right end of the first through hole (2) is communicated with the left end of the second through hole (3), the left end of the first through hole (2) extends to the left side face of the sensor shell (1), and the right end of the second through hole (3) extends to the right side face of the sensor shell (1);

an annular sealing groove (12) is formed in the inner side wall of the first through hole (2), a sealing ring (13) matched with the annular sealing groove (12) is arranged inside the annular sealing groove (12), a metal sliding rod (5) is sleeved inside the sealing ring (13), a spring (10) and a sliding block (4) are arranged inside the second through hole (3), the right end of the metal sliding rod (5) sequentially penetrates through the spring (10) and the sliding block (4) and extends to the right side of the sliding block (4), the metal sliding rod (5) is sleeved inside the spring (10) in a sliding mode, the metal sliding rod (5) and the sliding block (4) are fixedly connected, the sliding block (4) is in a disc shape, the diameter of the sliding block is slightly smaller than that of the second through hole (3), the sliding block can slide inside the second through hole (3), and the sliding block (4) is made of conductive metal;

the inside of second through-hole (3) is equipped with metal conducting seat (9) and tubular metal resonator (6), the surface of tubular metal resonator (6) and the inner wall fixed connection of second through-hole (3), the right-hand member of tubular metal resonator (6) extends to the right flank of sensor housing (1), the inside fixed cover of tubular metal resonator (6) is equipped with insulated column (7), the left surface of insulated column (7) and the right flank fixed connection of metal conducting seat (9), the inside fixed of insulated column (7) is inlayed and is had metal pole (8), the left end of metal pole (8) extends to the left surface of insulated column (7) and is connected with metal conducting seat (9) electricity, the right-hand member of metal pole (8) extends to the right side of insulated column (7).

2. The on-line monitoring sensor for the circuit breaker as claimed in claim 1, wherein: the right-hand member of sensor casing (1) is hexagon nut form, the left end of sensor casing (1) is the screw rod form that has screw thread Q.

3. The on-line monitoring sensor for the circuit breaker as claimed in claim 1, wherein: the middle part of the sensor shell (1) is provided with an annular groove S, the middle part of the sensor shell (1) is sleeved with a rubber ring (11), and the rubber ring (11) is arranged at the position of the annular groove S matched with the rubber ring.

4. The on-line monitoring sensor for the circuit breaker as claimed in claim 1, wherein: the annular sealing groove (12) and the sealing ring (13) jointly form a sealing unit, and the number of the sealing unit is at least three.

5. The on-line monitoring sensor for the circuit breaker as claimed in claim 1, wherein: the metal conductive seat (9) is composed of a conductive pressure spring and two conductive metal sheets, and the two metal conductive sheets are respectively fixed at the left end and the right end of the conductive pressure spring.

6. The on-line monitoring sensor for the circuit breaker as claimed in claim 1, wherein: the outer portion of the spring (10) is sleeved with a thrust cylinder (14), the thrust cylinder (14) is located at the left end of the second through hole (3), and the outer surface of the thrust cylinder (14) is fixedly connected with the inner wall of the second through hole (3).