CN216435782U - AC vacuum contactor - Google Patents

Abstract

The utility model discloses an AC vacuum contactor, including the vacuum arc extinguishing chamber shell, the inside bottom of vacuum arc extinguishing chamber shell is provided with the electromagnetic coil board and the spacing post of insulation, the electromagnetic coil board is located one side of the spacing post of insulation, and the top central point department of putting of electromagnetic coil board is provided with the fixed contact, the inside top of vacuum arc extinguishing chamber shell is provided with corrugated metal pipe, corrugated metal pipe's bottom is provided with the movable block, the bottom central point department of putting of movable block is provided with the movable contact, be provided with first spring between the top of movable block and the inside top of vacuum arc extinguishing chamber shell. This AC vacuum contactor through deciding mutually supporting of contact and movable contact, can extrude through the deformation of self for decide firm stable the linking together of contact and movable contact, guarantee that the contact contacts closely, avoid electric arc electric shock tradition contact to cause the problem that deformation influences follow-up connection compactness.

Description

AC vacuum contactor

Technical Field

The utility model relates to a vacuum contactor technical field specifically is an AC vacuum contactor.

Background

The vacuum contactor utilizes a vacuum arc-extinguishing chamber to extinguish arc, is used for frequently switching on and switching off normal working current, and is generally used for remotely switching on and switching off a 6kV and 380V alternating current motor with medium and low voltage and frequent start and stop.

In order to ensure the working stability of the alternating current vacuum contactor, the alternating current vacuum contactor (patent number: 201420644715.6) in Chinese patent adopts an integral frame structure and has the remarkable characteristics of stable performance, reliable use, compact structure, small volume of rest and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an AC vacuum contactor to the contact that proposes in the current AC vacuum contactor among the above-mentioned background art of solution can produce electric arc when the contact, and electric arc can shock the contact and cause deformation, influences the compactness of follow-up contact, is difficult to realize locking after the contact, and then causes the problem that the contact junction is inseparable stable enough.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an alternating current vacuum contactor, includes the vacuum arc extinguish chamber shell, the inside bottom of vacuum arc extinguish chamber shell is provided with solenoid plate and insulating spacing post, the solenoid plate is located one side of insulating spacing post, and the top central point department of solenoid plate is provided with the fixed contact, the inside top of vacuum arc extinguish chamber shell is provided with corrugated metal pipe, corrugated metal pipe's bottom is provided with the movable block, the bottom central point department of movable block is provided with the movable contact, be provided with first spring between the top of movable block and the inside top of vacuum arc extinguish chamber shell, the top central point department embedding of vacuum arc extinguish chamber shell has first joint, and the bottom central point department embedding of vacuum arc extinguish chamber shell has the second to connect, the outside position department that the bottom of movable block is close to the movable contact is provided with the armature block.

Preferably, one side position department that is close to the movable contact on one side outer wall of vacuum arc extinguishing chamber shell is provided with the solenoid post, and one side position department that is close to the solenoid post on one side outer wall of vacuum arc extinguishing chamber shell is provided with the rod cover, the one end embedding of keeping away from the vacuum arc extinguishing chamber shell on the rod cover has the armature bar, be provided with the second spring between the one end of armature bar and one side inner wall of rod cover, all imbed the coil joint with the bottom of vacuum arc extinguishing chamber shell on one side outer wall of vacuum arc extinguishing chamber shell.

Preferably, the number of the insulation limiting columns is four, and the four insulation limiting columns are symmetrically arranged inside the vacuum arc extinguishing chamber shell.

Preferably, the outer walls of one sides of the fixed contact and the movable contact are respectively provided with an arc-shaped part, and the fixed contact and the movable contact are both made of Cu/Pd composite elastic contact materials.

Preferably, the movable contact is connected with the first connector through a cable, the fixed contact is connected with the second connector through a cable, and the solenoid plate and the solenoid column are connected with the coil connector through cables.

Preferably, the electromagnetic coils are arranged inside the electromagnetic coil plate and the electromagnetic coil column.

Preferably, the insulation limiting column penetrates through the moving block.

Preferably, one end of the armature rod performs piston type movement in the rod sleeve.

Compared with the prior art, the beneficial effects of the utility model are that: this AC vacuum contactor, through deciding mutually supporting of contact and movable contact, can extrude through the deformation of self, make decide the firm stable connection of contact and movable contact together, guarantee inseparable of contact, avoid electric arc electric shock traditional contact to cause the problem that deformation influences follow-up connection compactness, through electromagnetic coil post, the pole cover is mutually supported with the armature rod, lateral shifting through the armature rod realizes the spacing of movable contact, realize the fixed on the movable contact position, thereby avoid deciding the stability that contact and movable contact become flexible influence circuit intercommunication.

Drawings

FIG. 1 is an interior elevation view of the present invention;

FIG. 2 is an internal side view of the present invention;

fig. 3 is a bottom view of the moving block of the present invention;

fig. 4 is a front view of the moving contact of the present invention;

fig. 5 is a schematic view of the internal structure of the rod cover of the present invention.

In the figure: 1. a vacuum arc extinguishing chamber housing; 2. an electromagnetic coil plate; 3. an insulating limit post; 4. fixing a contact point; 5. a metal bellows; 6. a moving block; 7. a movable contact; 8. a first spring; 9. a first joint; 10. a second joint; 11. an electromagnetic coil post; 12. a rod sleeve; 13. an armature rod; 14. a second spring; 15. a coil joint; 16. an armature block.

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.

Referring to fig. 1-5, the present invention provides a technical solution: an alternating current vacuum contactor comprises a vacuum arc extinguishing chamber shell 1, wherein the bottom inside the vacuum arc extinguishing chamber shell 1 is provided with a solenoid plate 2 and four insulation limiting columns 3, the insulation limiting columns 3 are provided with four in number, the four insulation limiting columns 3 are symmetrically arranged inside the vacuum arc extinguishing chamber shell 1, the solenoid plate 2 is positioned on one side of the insulation limiting columns 3, a fixed contact 4 is arranged at the central position of the top of the solenoid plate 2, arc-shaped parts are arranged on the outer walls of one sides of the fixed contact 4 and a movable contact 7, the fixed contact 4 and the movable contact 7 are made of Cu/Pd60 composite elastic contact materials, a certain elastic capacity of the fixed contact 4 and the movable contact 7 is ensured, the top inside the vacuum arc extinguishing chamber shell 1 is provided with a metal corrugated pipe 5, the bottom end of the metal corrugated pipe 5 is provided with a moving block 6, the central position of the bottom of the moving block 6 is provided with the movable contact 7, a first spring 8 is arranged between the top of the moving block 6 and the top of the interior of the vacuum arc extinguishing chamber shell 1, a first joint 9 is embedded in the center of the top of the vacuum arc extinguishing chamber shell 1, the movable contact 7 is connected with the first joint 9 through a cable, a second joint 10 is embedded in the center of the bottom of the vacuum arc extinguishing chamber shell 1, the fixed contact 4 is connected with the second joint 10 through a cable, an armature block 16 is arranged at the outer side position, close to the movable contact 7, of the bottom of the moving block 6, and the insulation limiting column 3 penetrates through the moving block 6.

Further: a solenoid post 11 is arranged at a position on one side of the outer wall of one side of the vacuum arc extinguishing chamber housing 1 close to the movable contact 7, a rod sleeve 12 is arranged at a position on one side of the outer wall of one side of the vacuum arc extinguishing chamber housing 1 close to the solenoid post 11, an armature rod 13 is embedded in one end of the rod sleeve 12 far away from the vacuum arc extinguishing chamber housing 1, one end of the armature rod 13 makes piston type motion in the rod sleeve 12, a second spring 14 is arranged between one end of the armature rod 13 and the inner wall of one side of the rod sleeve 12, a coil joint 15 is embedded in the outer wall of one side of the vacuum arc extinguishing chamber housing 1 and the bottom of the vacuum arc extinguishing chamber housing 1, the solenoid plate 2 and the solenoid post 11 are connected with the coil joint 15 through cables, and solenoids are arranged in the solenoid plate 2 and the solenoid post 11.

The working principle is as follows: when the alternating current transformer is used, the first connector 9 is connected with an alternating current live wire, the second connector 10 is contacted with an alternating current zero line, when alternating current is required to form a loop, a solenoid power supply in the solenoid plate 2 is switched on, the solenoid plate 2 generates magnetism after being electrified, through magnetic adsorption, the armature block 16 moves downwards under the action of magnetic adsorption force, under the limit of the insulation limit column 3, the moving block 6 moves downwards stably, the metal corrugated pipe 5 stretches, the fixed contact 4 and the movable contact 7 are contacted and extruded together, the connection between the zero line and the live wire is ensured, further the alternating current loop is realized, after the contact between the fixed contact 4 and the movable contact 7 is completed, the power supply of the solenoid column 11 is switched on, the armature rod 13 is attracted to move after the magnetism is generated by the solenoid column 11, the armature rod 13 penetrates through the movable contact 7, and the limit of the armature rod 13 to the movable contact 7 is realized, and further, the movable contact 7 is fixed in position, so that the problem that the stability of circuit communication is influenced by the looseness of the fixed contact 4 and the movable contact 7 is avoided.

In summary, the following steps: this AC vacuum contactor, through deciding mutually supporting of contact 4 and movable contact 7, can extrude through the deformation of self, make and decide contact 4 and the firm stable connection of movable contact 7 together, guarantee inseparable of contact, avoid electric arc electric shock traditional contact to cause the problem that deformation influences follow-up connection compactness, through electromagnetic coil post 11, pole sleeve 12 and armature bar 13 mutually support, lateral shifting through armature bar 13 realizes movable contact 7 spacing, realize the fixed in movable contact 7 position, thereby avoid deciding the stability that contact 4 and movable contact 7 become flexible influence circuit intercommunication.

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.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

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 (8)

1. An AC vacuum contactor comprises a vacuum arc extinguishing chamber shell (1), and is characterized in that: the vacuum arc extinguishing chamber comprises a vacuum arc extinguishing chamber shell (1), wherein an electromagnetic coil plate (2) and an insulation limiting column (3) are arranged at the bottom inside the vacuum arc extinguishing chamber shell (1), the electromagnetic coil plate (2) is located on one side of the insulation limiting column (3), a fixed contact (4) is arranged at the central position of the top of the electromagnetic coil plate (2), a metal corrugated pipe (5) is arranged at the top inside the vacuum arc extinguishing chamber shell (1), a moving block (6) is arranged at the bottom end of the metal corrugated pipe (5), a movable contact (7) is arranged at the central position of the bottom of the moving block (6), a first spring (8) is arranged between the top of the moving block (6) and the top inside the vacuum arc extinguishing chamber shell (1), a first joint (9) is embedded at the central position of the top of the vacuum arc extinguishing chamber shell (1), and a second joint (10) is embedded at the central position of the bottom of the vacuum arc extinguishing chamber shell (1), an armature block (16) is arranged at the outer side position of the bottom of the moving block (6) close to the moving contact (7).

2. An ac vacuum contactor as claimed in claim 1, wherein: the vacuum arc extinguishing chamber is characterized in that a solenoid post (11) is arranged at a position close to one side of a movable contact (7) on an outer wall of one side of the vacuum arc extinguishing chamber shell (1), a rod sleeve (12) is arranged at a position close to one side of the solenoid post (11) on an outer wall of one side of the vacuum arc extinguishing chamber shell (1), an armature rod (13) is embedded into one end of the rod sleeve (12) far away from the vacuum arc extinguishing chamber shell (1), a second spring (14) is arranged between one end of the armature rod (13) and an inner wall of one side of the rod sleeve (12), and a coil joint (15) is embedded into the outer wall of one side of the vacuum arc extinguishing chamber shell (1) and the bottom of the vacuum arc extinguishing chamber shell (1).

3. An ac vacuum contactor as claimed in claim 1, wherein: the four insulation limiting columns (3) are arranged, and the four insulation limiting columns (3) are symmetrically arranged inside the vacuum arc extinguish chamber shell (1).

4. An ac vacuum contactor as claimed in claim 1, wherein: arc-shaped parts are arranged on the outer walls of one sides of the fixed contact (4) and the movable contact (7), and the fixed contact (4) and the movable contact (7) are made of Cu/Pd60 composite elastic contact materials.

5. An ac vacuum contactor as claimed in claim 1, wherein: the movable contact (7) is connected with the first joint (9) through a cable, the fixed contact (4) is connected with the second joint (10) through a cable, and the electromagnetic coil plate (2), the electromagnetic coil column (11) and the coil joint (15) are connected through cables.

6. An ac vacuum contactor as claimed in claim 1, wherein: and electromagnetic coils are arranged in the electromagnetic coil plate (2) and the electromagnetic coil column (11).

7. An ac vacuum contactor as claimed in claim 1, wherein: the insulation limiting column (3) penetrates through the moving block (6).

8. An ac vacuum contactor as claimed in claim 2, wherein: one end of the armature rod (13) performs piston type movement in the rod sleeve (12).

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