CN213184099U

CN213184099U - Subminiature single-phase alternating-current high-voltage vacuum contactor

Info

Publication number: CN213184099U
Application number: CN202022264373.3U
Authority: CN
Inventors: 朱华; 任浩
Original assignee: Wuxi Haibang Mechanics And Electric Appliance Manufacturing Co ltd
Current assignee: Wuxi Haibang Mechanics And Electric Appliance Manufacturing Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-05-11
Anticipated expiration: 2030-10-12

Abstract

The utility model belongs to the technical field of the contactor, especially, be a subminiature single phase alternating current high pressure vacuum contactor, including shell, small-size vacuum switch tube and a magnetic conduction section of thick bamboo, the bottom surface fixed connection insulating box of small-size vacuum switch tube, the through-hole has been seted up to two sides of insulating box, the inside sliding connection of through-hole has the L template, the both ends bottom fixedly connected with normally closed contact of L template, two sides of insulating box are located the below fixedly connected with diaphragm of through-hole, the position that the diaphragm corresponds normally closed contact is provided with normally open contact. The utility model discloses a fixedly connected with ring that gives sound insulation is located between counter-force spring and damping spring at the base plate upper surface, sets up damping spring in the middle of the upper surface of base plate simultaneously to damping spring's upper surface is connected with quiet iron core, has played vibration/noise reduction's effect, and the use of having avoided the short circuit ring has further reduced the volume of contactor, is worth generally using and promoting.

Description

Subminiature single-phase alternating-current high-voltage vacuum contactor

Technical Field

The utility model relates to a contactor technical field specifically is a subminiature single phase alternating current high pressure vacuum contactor.

Background

The existing 12 KV-grade single-phase alternating-current high-voltage vacuum contactor is generally large in size, and is not large in single current when being applied to the fields of new energy sources such as power supplies of polycrystalline silicon growth furnaces and sapphire furnaces, but the problems of overlarge volume occupation, complex wiring of main loop structures, difficult insulation treatment between lines, difficult overhauling and maintenance and the like exist due to the large using amount (as many as 60 pieces) of single equipment.

The existing subminiature single-phase alternating-current high-voltage vacuum contactor has the following problems:

1. the existing single-phase alternating current high-voltage vacuum contactor can be generally sleeved with a short circuit ring at the upper end or the lower end of a static iron core to eliminate the vibration between a movable iron core and the static iron core, so that the purpose of vibration reduction and noise reduction is achieved, but the volume of the short circuit ring is large, and the volume of the whole vacuum contactor can be increased.

2. The existing single-phase alternating current high-voltage vacuum contactor is generally sleeved with an insulating sleeve on the outer surface of a vacuum switch tube in order to improve the insulating property of the contactor, so that the volume of the contactor is increased, the insulating sleeve is long in time and easy to loosen, and the using performance of the contactor is further influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art not enough, the utility model provides a subminiature single phase alternating current high voltage vacuum contactor has solved that prior art short circuit ring volume is great, can increase whole vacuum contactor's volume and the easy not hard up problem of insulating cover.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a subminiature single-phase alternating current high-voltage vacuum contactor comprises a shell, a miniature vacuum switch tube and a magnetic conduction cylinder, wherein the bottom surface of the miniature vacuum switch tube is fixedly connected with an insulation box, through holes are formed in two side surfaces of the insulation box, an L-shaped plate is slidably connected inside the through holes, normally closed contacts are fixedly connected to the bottoms of the two ends of the L-shaped plate, transverse plates are fixedly connected to the two side surfaces of the insulation box below the through holes, normally open contacts are arranged at positions, corresponding to the normally closed contacts, of the transverse plates, a first connecting rod is fixedly connected to the upper end of the L-shaped plate, a second connecting rod is fixedly connected to the bottom surface of the L-shaped plate, a reset spring is sleeved on the outer surface of the second connecting rod, a base plate is fixedly connected to the bottom surface of the magnetic conduction cylinder, a damping, the utility model discloses a damping device of a motor vehicle, including the quiet iron core, insulating case fixedly connected with roof, fixedly connected with moves the iron core in the middle of the bottom surface of roof, move the iron core and be the chevron type with quiet iron core, the bottom of second connecting rod passes insulating case fixedly connected with roof, fixedly connected with moves the iron core in the middle of the bottom surface of roof, it is the mountain style of calligraphy to move the iron core and quiet iron core, fixedly connected with reaction spring between roof bottom surface avris and the base plate upper surface avris, the base plate upper surface is located fixedly connected with ring that gives sound insulation between reaction spring and the damping spring, the outer.

As an optimized technical scheme of the utility model, the shell is the tube-shape cavity, the shell is the insulating casing.

As an optimized technical scheme of the utility model, the top fixedly connected with arc-extinguishing chamber of shell, the upper end that the shape of arc-extinguishing chamber was is the toper.

As an optimal technical scheme of the utility model, the ring that gives sound insulation is the PVC ring, the internal surface of ring that gives sound insulation scribbles the shock attenuation clay.

As an optimized technical scheme of the utility model, the surface of small-size vacuum switch pipe scribbles insulating cement.

As an optimized technical scheme of the utility model, normally closed contact and normally open contact are silver-tungsten alloy contact.

(III) advantageous effects

Compared with the prior art, the utility model provides a subminiature single-phase alternating current high-voltage vacuum contactor possesses following beneficial effect:

1. this subminiature single-phase alternating current high pressure vacuum contactor is through fixing small-size vacuum switch tube inside the upper end of shell to set up insulating clay between small-size vacuum switch tube and shell, improved the inside insulating properties of contactor greatly, make full use of the clearance between small-size vacuum switch tube and the shell, avoided insulating cover's use, reduced the volume of contactor greatly.

2. This subminiature single-phase alternating current high pressure vacuum contactor through being located fixedly connected with syllable-dividing ring between counter-force spring and damping spring at the base plate upper surface, sets up damping spring in the middle of the upper surface of base plate simultaneously to damping spring's upper surface is connected with quiet iron core, has played vibration/noise reduction's effect, and the use of having avoided the short circuit ring has further reduced the volume of contactor, is worth generally applying and promoting.

Drawings

FIG. 1 is a schematic view of the internal structure of the main body of the present invention;

FIG. 2 is a schematic view of the structure of the magnetic conduction tube of the main body of the present invention;

fig. 3 is a schematic view of the external structure of the main body of the present invention.

In the figure: 1. a housing; 2. a miniature vacuum switching tube; 3. a magnetic conduction cylinder; 4. an insulating case; 5. a through hole; 6. an L-shaped plate; 7. a normally closed contact; 8. a transverse plate; 9. a normally open contact; 10. a first connecting rod; 11. a second connecting rod; 12. a return spring; 13. a substrate; 14. a damping spring; 15. a stationary core; 16. a coil; 17. a wire; 18. a top plate; 19. a movable iron core; 20. a counter-force spring; 21. a sound-insulating ring; 22. an arc extinguishing chamber; 23. damping daub; 24. and (4) insulating cement gum.

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.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: a subminiature single-phase alternating current high-voltage vacuum contactor comprises a shell 1, a small vacuum switch tube 2 and a magnetic conduction cylinder 3, wherein the bottom surface of the small vacuum switch tube 2 is fixedly connected with an insulation box 4, two side surfaces of the insulation box 4 are provided with through holes 5, the inside of each through hole 5 is connected with an L-shaped plate 6 in a sliding manner, the bottoms of two ends of each L-shaped plate 6 are fixedly connected with normally closed contacts 7, two side surfaces of the insulation box 4 are positioned below the through holes 5 and are fixedly connected with transverse plates 8, the transverse plates 8 are provided with normally open contacts 9 corresponding to the positions of the normally closed contacts 7, the upper end of each L-shaped plate 6 is fixedly connected with a first connecting rod 10, the bottom surface of each L-shaped plate 6 is fixedly connected with a second connecting rod 11, the outer surface of each second connecting rod 11 is sleeved with a reset spring 12, the bottom surface of the magnetic conduction, the coil 16 is embedded in the static iron core 15, the lead 17 is arranged in front of the inside of the base plate 13, the lead 17 is connected with the coil 16, the bottom end of the second connecting rod 11 penetrates through the insulating box 4 and is fixedly connected with the top plate 18, the movable iron core 19 is fixedly connected with the middle of the bottom surface of the top plate 18, the movable iron core 19 and the static iron core 15 are in a shape of Chinese character shan, the reaction spring 20 is fixedly connected between the bottom surface side of the top plate 18 and the upper surface side of the base plate 13, the sound insulation ring 21 is fixedly connected between the reaction spring 20 and the damping spring 14 on the upper surface of the base plate 13, and the sound.

In this embodiment, the L-shaped plate 6 can slide downward along the inner wall of the through hole 5 under the attraction of electromagnetic force, and the damper spring 14 is provided to clear the vibration between the movable iron core 19 and the stationary iron core 15, thereby achieving the purpose of reducing vibration and noise.

Specifically, the housing 1 is a cylindrical hollow cavity, and the housing 1 is an insulating shell.

In this embodiment, the insulating case is provided to protect the internal structure.

Specifically, the top end of the housing 1 is fixedly connected with an arc-extinguishing chamber 22, and the upper end of the arc-extinguishing chamber 22 is conical.

In this embodiment, the arc extinguishing chamber 22 is made of clay, and has an arc extinguishing function.

Specifically, the sound insulation ring 21 is a PVC ring, and the inner surface of the sound insulation ring 21 is coated with a damping mortar 23.

In this embodiment, the PVC ring has stronger sound absorbing capacity because there is cellular pore on the surface, sets up shock attenuation clay 23, plays the effect of shock attenuation buffering, and both cooperate and play vibration/noise reduction's effect.

Specifically, the outer surface of the miniature vacuum switch tube 2 is coated with an insulating cement 24.

In this embodiment, set up insulating cement 24 and can improve the inside insulating properties of contactor, improve the performance of contactor.

Specifically, the normally closed contact 7 and the normally open contact 9 are both silver-tungsten alloy contacts.

In this embodiment, the silver-tungsten alloy has good thermal conductivity and electrical conductivity, and is an ideal material for the normally closed contact 7 and the normally open contact 9.

The utility model discloses a theory of operation and use flow: when the subminiature single-phase alternating-current high-voltage vacuum contactor is used, when rated control voltage is applied to the coil 16, current in the coil 16 generates an electromagnetic field, the static iron core 15 generates enough electromagnetic attraction, the movable iron core 19 is attracted by overcoming the action of the reaction spring 20, the normally closed contact 7 is firstly disconnected, then the normally open contact 9 is closed, after the coil 16 is powered off, the electromagnetic attraction disappears, the movable iron core is released under the action of the reaction spring 20, the normally open contact 9 is firstly disconnected, then the normally closed contact 7 is closed, and therefore the purpose of connecting or disconnecting a control circuit can be achieved by controlling the coil 16 of the contactor to be powered on or powered off.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a subminiature single-phase alternating current high pressure vacuum contactor, includes shell (1), small-size vacuum switch pipe (2) and magnetic conduction section of thick bamboo (3), its characterized in that: the bottom surface of the small vacuum switch tube (2) is fixedly connected with an insulation box (4), two side surfaces of the insulation box (4) are provided with through holes (5), the inside of each through hole (5) is slidably connected with an L-shaped plate (6), the bottoms of the two ends of each L-shaped plate (6) are fixedly connected with normally closed contacts (7), two side surfaces of the insulation box (4) are positioned below the through holes (5) and fixedly connected with transverse plates (8), the positions, corresponding to the normally closed contacts (7), of the transverse plates (8) are provided with normally open contacts (9), the upper ends of the L-shaped plates (6) are fixedly connected with first connecting rods (10), the bottom surface of each L-shaped plate (6) is fixedly connected with a second connecting rod (11), the outer surface of each second connecting rod (11) is sleeved with a reset spring (12), the bottom surface of the magnetic conduction tube (3) is fixedly connected with a substrate (13), and a damping spring, the upper surface of the damping spring (14) is fixedly connected with a static iron core (15), a coil (16) is embedded in the static iron core (15), a lead (17) is arranged in front of the inner part of the substrate (13), the lead (17) is connected with the coil (16), the bottom end of the second connecting rod (11) penetrates through the insulating box (4) to be fixedly connected with a top plate (18), a movable iron core (19) is fixedly connected in the middle of the bottom surface of the top plate (18), the movable iron core (19) and the static iron core (15) are in a Chinese character 'shan', a reaction spring (20) is fixedly connected between the bottom surface side of the top plate (18) and the upper surface side of the substrate (13), a sound insulation ring (21) is fixedly connected between the reaction spring (20) and the damping spring (14) on the upper surface of the base plate (13), the sound insulation ring (21) is connected with the outer surface of the static iron core (15) in a sliding mode.

2. A subminiature single-phase ac high-voltage vacuum contactor as claimed in claim 1, wherein: the shell (1) is a cylindrical hollow cavity, and the shell (1) is an insulating shell.

3. A subminiature single-phase ac high-voltage vacuum contactor as claimed in claim 1, wherein: the top end of the shell (1) is fixedly connected with an arc-extinguishing shield (22), and the upper end of the arc-extinguishing shield (22) is conical.

4. A subminiature single-phase ac high-voltage vacuum contactor as claimed in claim 1, wherein: the sound insulation ring (21) is a PVC ring, and the inner surface of the sound insulation ring (21) is coated with damping mortar (23).

5. A subminiature single-phase ac high-voltage vacuum contactor as claimed in claim 1, wherein: the outer surface of the small-sized vacuum switch tube (2) is coated with insulating cement paste (24).

6. A subminiature single-phase ac high-voltage vacuum contactor as claimed in claim 1, wherein: the normally closed contact (7) and the normally open contact (9) are both silver-tungsten alloy contacts.