CN212848230U

CN212848230U - Over-voltage and under-voltage contactor

Info

Publication number: CN212848230U
Application number: CN202022323651.8U
Authority: CN
Inventors: 叶正蔚
Original assignee: Zhejiang Sanken Electric Co ltd
Current assignee: Yinchuan Grace Electric Group Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-03-30
Anticipated expiration: 2030-10-19

Abstract

The utility model discloses a cross undervoltage contactor, its technical scheme main points include the base, the base upside is equipped with the installation shell, protective housing and epitheca, be equipped with coil and quiet iron core in the base, the inboard of installation shell is equipped with armature, be equipped with the moving contact on the armature, be equipped with reset spring between armature and the coil, be equipped with a plurality of static contacts on the installation shell, threaded connection has fixing bolt on the quiet contact, be equipped with the wiring mouth on the protective housing, wiring mouth outside clamping component, clamping component is including being located an upper fixed plate and bottom plate, there is last tight piece of clamp at the downside of an upper fixed plate through first spring coupling, there is lower clamp piece at the upside of bottom plate through second spring coupling, be equipped with the extension board on the tight piece of clamp, the lower extreme of extension board is equipped with the fixture block, it is equipped with the extension. The utility model discloses need not handheld cable when having the binding post on the cable and stationary contact cooperation, reduce the function of the wiring degree of difficulty.

Description

Over-voltage and under-voltage contactor

Technical Field

The utility model relates to a contactor technical field, concretely relates to cross under-voltage AC contactor.

Background

The contactor is divided into an alternating current contactor and a direct current contactor, and is applied to electric power, power distribution and power utilization occasions. The contactor generally generates a magnetic field by passing a current through a coil, so that contacts are closed to reach an appliance controlling a load. The stationary contact who crosses under-voltage contactor is when being connected with the cable now, insert stationary contact top and block on the bolt with stationary contact threaded connection through the wiring mouth with binding post on the cable usually, come binding post and stationary contact on the cable to be connected through screwing up the bolt, need hold the cable with the hand at the in-process of the bolt of screwing, prevent that binding post on the cable from deviating from the wiring mouth, this kind of wiring mode degree of difficulty is higher and change after the wiring mistake inconvenient, be difficult for people to use.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a cross undervoltage AC contactor has and need not handheld cable when with the binding post on the cable and stationary contact cooperation, reduces the function of the wiring degree of difficulty.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a cross undervoltage contactor, includes the base, and base upside joint has the installation shell, and the installation shell external fixation has the protective housing, and the protective housing upper end is connected with the epitheca, is equipped with coil and quiet iron core in the base, is equipped with armature in the inboard of installation shell, is equipped with the moving contact on the armature, is equipped with reset spring between armature and the coil, is equipped with a plurality of static contacts on the installation shell, and threaded connection has fixing bolt on the quiet contact, is equipped with the wiring mouth with the static contact intercommunication on the protective housing, its characterized in that: the wiring mouth outside is equipped with the tight subassembly of clamp of being connected with the protective housing, tight subassembly of clamp is including being located wiring mouthful upper fixed plate and the bottom plate of both sides from top to bottom, and there is tight piece of clamp on the downside of upper fixed plate through first spring coupling, and there is tight piece of clamp down on the upside of bottom plate through second spring coupling, go up and press from both sides tight piece down and all with protective housing sliding connection, the left and right sides of going up tight piece downside of clamp is equipped with the extension board, and the lower extreme of extension board is fixed with the fixture block, and the left and right sides of pressing from both sides tight piece upside down is equipped with the extension groove that supplies the extension board to stretch into, is equipped with.

By adopting the technical scheme, when the cable is connected with the stationary contact, the wiring terminal on the cable is inserted on the stud of the fixed bolt through the wiring port, then the upper clamping block and the lower clamping block are moved to enable the two upper clamping blocks and the lower clamping blocks to move oppositely to clamp the cable and enable the clamping blocks to be embedded into the adjacent clamping grooves, so that the cable is clamped by the upper clamping blocks and the lower clamping blocks, the cable is not easy to slide, the wiring terminal on the cable is not easy to be separated from the fixed bolt, the initial positioning of the cable is realized, the cable does not need to be held when people tighten the fixed bolt, the wiring difficulty is reduced, the cables can be firstly connected through the initial positioning mode, whether the position of the cable is correctly connected or not is naturally detected, if the cable is correctly connected, the purpose of connecting the wiring terminal with the stationary contact can be achieved through screwing the fixed bolt by one hand, make people's wiring more convenient, also can separate corresponding fixture block and draw-in groove if the cable connection mistake for go up and press from both sides tight piece rebound normal position down, thereby can pull down wrong cable fast and adjust, thereby improve holistic wiring efficiency.

The utility model discloses further set up to: one side that the draw-in groove is close to the protective housing is equipped with the unlocking groove, and unlocking inslot sliding connection has the unlocking board, and the unlocking pole passes through coupling spring to be connected bottom the unlocking groove, keeps away from protective housing one side at the unlocking board and is equipped with the mounting panel, and one side of mounting panel towards the draw-in groove is equipped with the unlocking piece that corresponds with each draw-in groove, and the unlocking piece can with draw-in groove clearance fit.

Through adopting above-mentioned technical scheme, when the tight piece of clamp and the tight piece separation of clamp down will be gone up to needs, thereby can press two unlocking boards simultaneously and make the unblock piece insert in the draw-in groove with the fixture block top go into the extension groove for fixture block and draw-in groove separation convenience, the people of being convenient for will go up and press from both sides tight piece and the tight piece separation of clamp down, the people of being convenient for change the position of cable when not screwing up fixing bolt, make cable position control convenient.

The utility model discloses further set up to: and one side of the upper clamping block, which is opposite to the lower clamping block, is fixedly provided with a squeezing pad, the squeezing pad is in a zigzag shape and is made of rubber, and the squeezing pad is positioned between the two extension plates.

Through adopting above-mentioned technical scheme, the extrusion pad adopts rubber to make and has certain elasticity, when pressing from both sides tight cable, comes to make the cable not fragile with the cable contact through the extrusion pad to the extrusion pad makes the extrusion pad bigger with the contact point little pressure of cable for the zigzag, thereby improves the clamp force and makes the cable difficult slip.

The utility model discloses further set up to: and a shifting plate is fixed on one side of each of the upper clamping block and the lower clamping block, which is far away from the protective shell.

Through adopting above-mentioned technical scheme, press from both sides tight piece and press from both sides tight piece down through pulling out the removal that the board can be more convenient, be convenient for people will press from both sides tight piece and press from both sides tight piece connection down.

The utility model discloses further set up to: one side that the protective housing was kept away from to the draw-in groove is equipped with the observation groove, the observation groove with be less than the fixture block and with the extending groove intercommunication.

Through adopting above-mentioned technical scheme, can observe the position of fixture block through observing the groove, be convenient for select suitable draw-in groove to be connected with the fixture block when the cable is pressed from both sides tightly. The upper clamping block and the lower clamping block are connected more conveniently by people.

To sum up, the utility model discloses following beneficial effect has:

before passing through fixing bolt with cable and static contact fixed, can be earlier through last press from both sides tight piece and the connection of pressing from both sides tight piece down with the cable fixed, make people need not to obey the cable when screwing up fixing bolt and fix a position, the wiring degree of difficulty has been reduced, and when connecting each cable, can press from both sides tight piece and press from both sides tight piece down earlier and carry out preliminary location through last, again same each fixing bolt of screwing up after the position is confirmed errorlessly, the efficiency of connecting wire is improved, and can press from both sides tight piece and press from both sides tight piece quickly separating down with last after discovering the initial positioning mistake, realize the quick adjustment of cable position, further improve the efficiency of connecting wire.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is the same in cross section for this embodiment;

FIG. 3 is an enlarged schematic view of FIG. 1 at A;

FIG. 4 is a partial cross-sectional view showing the connection relationship between the unlocking plate and the lower clamping block in the present embodiment.

Reference numerals: 1. a base; 2. mounting a shell; 3. a protective shell; 4. a top shell; 5. a coil; 6. a stationary iron core; 7. an armature; 8. a moving contact; 9. a return spring; 10. static contact; 11. fixing the bolt; 12. a wiring port; 13. a clamping assembly; 14. an upper fixing plate; 15. a lower fixing plate; 16. a first spring; 17. an upper clamping block; 18. a second spring; 19. a lower clamping block; 20. an extension plate; 21. a clamping block; 22. an extension groove; 23. a card slot; 24. pressing the cushion; 25. dialing a plate; 26. unlocking the groove; 27. an unlocking plate; 28. a connecting spring; 29. mounting a plate; 30. unlocking the block; 31. and (6) observing the groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses an overvoltage/undervoltage contactor, as shown in fig. 1 to 4, including base 1, base 1 upside joint has installation shell 2, and installation shell 2 external fixation has protective housing 3, and protective housing 3 upper end is connected with top shell 4, is equipped with coil 5 and quiet iron core 6 in base 1, is equipped with armature 7 in the inboard of installation shell 2, is equipped with moving contact 8 on armature 7, is equipped with reset spring 9 between armature 7 and the coil 5. The installation shell 2 is provided with a plurality of static contacts 10, the static contacts 10 are in threaded connection with fixing bolts 11, the protection shell 3 is provided with wiring ports 12 communicated with the static contacts 10, and the outer sides of the wiring ports 12 are provided with clamping assemblies 13 connected with the protection shell 3.

The clamping assembly 13 comprises an upper fixing plate 14 and a lower fixing plate 15 which are positioned at the upper side and the lower side of the wiring port 12, an upper clamping block 17 is connected to the lower side of the upper fixing plate 14 through a first spring 16, a lower clamping block 19 is connected to the upper side of the lower fixing plate 15 through a second spring 18, and the upper clamping block 17 and the lower clamping block 19 are slidably connected with the protective shell 3. Extension plates 20 are arranged on the left side and the right side of the lower side of the upper clamping block 17, a clamping block 21 is fixed at the lower end of each extension plate 20, extension grooves 22 for the extension plates 20 to extend into are arranged on the left side and the right side of the upper side of the lower clamping block 19, a plurality of clamping grooves 23 are formed in the inner walls of the extension grooves 22, an extrusion pad 24 is fixed on one side, opposite to the upper clamping block 17 and the lower clamping block 19, of the upper clamping block 17, and the extrusion pad 24 is zigzag and made of rubber. A shifting plate 25 is fixed on one side of the upper clamping block 17 and one side of the lower clamping block 19, which are far away from the protective shell 3. When the first spring 16 and the second spring 18 are in a normal state, the wire connection port 12 is not shielded by the clamping assembly 13.

When the cable is connected with the stationary contact, a wiring terminal on the cable is inserted into a stud of the bolt through the wiring port 12, then the upper clamping block 17 and the lower clamping block 19 are shifted to move oppositely to clamp the cable and enable the clamping blocks 21 to be embedded into the adjacent clamping grooves 23, so that the cable is clamped by the two pressing pads 24, the cable is not easy to slide, the wiring terminal on the cable is not easy to separate from the bolt, the initial positioning of the cable is realized, after the initial positioning of each cable is finished, whether the cable is correctly connected or not can be checked, if the cable is correctly connected, the bolt can be screwed by one hand to achieve the purpose of connecting the wiring terminal with the stationary contact, so that the wiring of people is more convenient, if the cable is wrongly connected, the corresponding clamping blocks 21 can be separated from the clamping grooves 23, and the upper clamping block 17 and the lower clamping block 19 can rebound to the original positions, therefore, the wrong cable can be quickly detached for adjustment, and the overall wiring efficiency is improved.

One side that is close to protective housing 3 at draw-in groove 23 is equipped with unlocking groove 26, and unlocking groove 26 sliding connection has unlocking board 27, and the unlocking pole passes through coupling spring 28 to be connected with unlocking groove 26 bottom, is equipped with mounting panel 29 in unlocking board 27 one side of keeping away from protective housing 3, and mounting panel 29 is equipped with the unblock piece 30 that corresponds with each draw-in groove 23 towards one side of draw-in groove 23, unblock piece 30 can with draw-in groove 23 clearance fit. When the upper clamping block 17 and the lower clamping block 19 need to be separated, the two unlocking plates 27 can be pressed simultaneously, so that the unlocking block 30 is inserted into the clamping groove 23, the clamping block 21 is pushed into the extension groove 22, the clamping block 21 and the clamping groove 23 are convenient to separate, and people can separate the upper clamping block 17 from the lower clamping block 19 conveniently.

One side of the clamping groove 23, which is far away from the protective shell 3, is provided with an observation groove 31, and the observation groove 31 is smaller than the clamping block 21 and communicated with the extension groove 22. The position of latch 21 can be viewed through viewing slot 31 to facilitate selection of the appropriate catch 23 to engage with latch 21 when the cable is clamped. So that the upper clamping block 17 and the lower clamping block 19 can be connected more conveniently.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a cross undervoltage contactor, including base (1), base (1) upside joint has installation shell (2), installation shell (2) external fixation has protective housing (3), protective housing (3) upper end is connected with top shell (4), be equipped with coil (5) and quiet iron core (6) in base (1), inboard at installation shell (2) is equipped with armature (7), be equipped with moving contact (8) on armature (7), be equipped with reset spring (9) between armature (7) and coil (5), be equipped with a plurality of static contacts (10) on installation shell (2), threaded connection has fixing bolt (11) on static contact (10), be equipped with wiring mouth (12) that communicate with static contact (10) on protective housing (3), its characterized in that: the wiring port (12) is provided with a clamping assembly (13) connected with the protective shell (3) on the outer side, the clamping assembly (13) comprises an upper fixing plate (14) and a lower fixing plate (15) which are positioned on the upper side and the lower side of the wiring port (12), the lower side of the upper fixing plate (14) is connected with an upper clamping block (17) through a first spring (16), the upper side of the lower fixing plate (15) is connected with a lower clamping block (19) through a second spring (18), the upper clamping block (17) and the lower clamping block (19) are both in sliding connection with the protective shell (3), the left side and the right side of the lower side of the upper clamping block (17) are provided with extension plates (20), the lower end of each extension plate (20) is fixed with a clamping block (21), the left side and the right side of the upper side of the lower clamping block (19) are provided with extension grooves (22) into which the extension plates (20), the clamping groove (23) is communicated with the side wall of the lower clamping block (19).

2. A overvoltage/undervoltage contactor according to claim 1, wherein: one side that draw-in groove (23) are close to protective housing (3) is equipped with unlocking groove (26), sliding connection has unlocking plate (27) in unlocking groove (26), unlocking plate (27) are connected bottom unlocking groove (26) through coupling spring (28), keep away from protective housing (3) one side at unlocking plate (27) and be equipped with mounting panel (29), one side that mounting panel (29) are towards draw-in groove (23) is equipped with unlocking piece (30) that correspond with each draw-in groove (23), unlocking piece (30) and draw-in groove (23) clearance fit.

3. A overvoltage/undervoltage contactor according to claim 2, wherein: the opposite side of the upper clamping block (17) and the lower clamping block (19) is fixed with a squeezing pad (24), the squeezing pad (24) is in a sawtooth shape and made of rubber, and the squeezing pad (24) is located between the two extension plates (20).

4. A overvoltage/undervoltage contactor according to claim 3, wherein: and a shifting plate (25) is fixed on one side of each of the upper clamping block (17) and the lower clamping block (19) far away from the protective shell (3).

5. The under-voltage contactor as claimed in claim 4, wherein: one side of the clamping groove (23) far away from the protective shell (3) is provided with an observation groove (31), and the observation groove (31) is communicated with the extension groove (22) and smaller than the clamping block (21).