CN215266111U

CN215266111U - Direct current contactor with internal observation function

Info

Publication number: CN215266111U
Application number: CN202121550234.5U
Authority: CN
Inventors: 沈少成
Original assignee: Nanjing Oule Electric Appliance Co ltd
Current assignee: Nanjing Oule Electric Appliance Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2021-12-21
Anticipated expiration: 2031-07-08

Abstract

The utility model discloses a direct current contactor who possesses inside observation function relates to direct current contactor technical field, for solving current direct current contactor and do not possess inside observation function, daily use is difficult for discovering electromagnetic mechanism unusual, and overhauls inconvenient problem. The utility model discloses a plastic wire holder, including metal casing, observation lid, wire holder, contact piece, observation lid, metal casing's internally mounted has electromagnetic mechanism, the observation lid is installed to metal casing's front end, the plastics wire holder is installed to metal casing's upper end, the bonnet is installed to the upper end of plastics wire holder, the terminal is all installed to the top at plastics wire holder both ends, be provided with the contact on the terminal, metal casing's rear end is provided with the installation piece, the observation lid includes plastics frame and ya li ke observation window, ya li ke observation window is installed in the inside of plastics frame, install the magnetism on the rear end face of plastics frame and inhale the strip.

Description

Direct current contactor with internal observation function

Technical Field

The utility model relates to a direct current contactor technical field specifically is a direct current contactor who possesses inside observation function.

Background

The dc contactor is a contactor whose iron core is controlled by dc, and its load may be dc or ac. The core of the dc contactor is not the same as the ac contactor in that it has no eddy current, and thus is generally formed in a circular shape using mild steel or industrial pure iron. Because the attraction coil of the DC contactor is electrified with DC, the DC contactor has no impact starting current and does not generate the phenomenon of violent impact of an iron core, thereby having long service life and being suitable for occasions of frequent starting and stopping. When the coil of the contactor is electrified, the coil current generates a magnetic field, so that the static iron core generates electromagnetic attraction to attract the movable iron core and drive the contact to act: the normally closed contact is opened, and the normally open contact is closed, and the normally closed contact and the normally open contact are linked. When the coil is powered off, the electromagnetic attraction disappears, and the armature is released under the action of the release spring to restore the contact: the normally open contact is open and the normally closed contact is closed.

However, the existing direct current contactor does not have an internal observation function, is not easy to find the abnormality of an electromagnetic mechanism in daily use, and is inconvenient to overhaul; therefore, we have proposed a dc contactor with an internal observation function in order to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a DC contactor who possesses inside observation function to current DC contactor who proposes in solving above-mentioned background does not possess inside observation function, and daily use is difficult for discovering electromagnetic mechanism unusual, and overhauls inconvenient problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a direct current contactor who possesses inside observation function, includes metal casing, metal casing's internally mounted has electromagnetic mechanism, the observation lid is installed to metal casing's front end, plastics wire holder is installed to metal casing's upper end, the cap cover is installed to the upper end of plastics wire holder, the terminal is all installed to the top at plastics wire holder both ends, be provided with the contact on the terminal, metal casing's rear end is provided with the installation piece.

Preferably, the observation cover comprises a plastic frame and an acrylic observation window, the acrylic observation window is installed inside the plastic frame, and the magnetic suction strip is installed on the rear end face of the plastic frame.

Preferably, the lower end of the plastic frame is provided with a loading and unloading groove, and the loading and unloading groove and the plastic frame are integrally formed.

Preferably, a rubber sealing strip is arranged on the edge of the joint of the metal shell and the observation cover.

Preferably, the plastic wire holder is in threaded connection with the cap through a first screw, and the plastic wire holder is in threaded connection with the metal shell through a second screw.

Preferably, the insides of both sides of the metal shell are provided with strip-shaped hole grooves.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an outside at direct current contactor metal casing sets up observes the lid, and it is fixed to observe the lid through magnetism absorption installation, when daily use, the accessible is observed the ya li ke observation window of covering and is looked over directly perceivedly whether take place the physics and damage in the direct current contactor, convenient in time overhaul, and when periodic maintenance, can lift observation lid whole off, and utilize temperature detector measuring coil temperature when operation direct current contactor, whether look over because of ageing emergence overheat phenomenon, thereby in time change, it does not possess inside observation function to have solved current direct current contactor, daily use is difficult for discovering electromagnetic mechanism unusually, and overhaul inconvenient problem.

2. The rubber sealing strip is arranged at the joint of the observation cover and the metal shell, so that the sealing performance of the joint of the observation cover and the metal shell can be improved, dust is prevented from entering the metal shell, poor contact is caused, and the service life of the direct current contactor is prolonged.

3. Through dividing into cap cover, plastics wire holder and metal casing triplex with direct current contactor, all rely on the screw connection between the three, it is convenient to dismantle, and the convenience is changed interior component when overhauing to improve maintenance efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a partial structure of the observation cover of the present invention;

fig. 3 is a schematic front structural view of the present invention;

in the figure: 1. a metal housing; 2. a plastic wire holder; 3. a binding post; 4. a contact piece; 5. a cap; 6. a first screw; 7. mounting a sheet; 8. a strip-shaped hole groove; 9. an observation cover; 10. a plastic frame; 11. An acrylic viewing window; 12. loading and unloading the groove; 13. a rubber seal strip; 14. magnetically attracting the strip; 15. an electromagnetic mechanism; 16. a second screw.

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.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a direct current contactor who possesses inside observation function, including metal casing 1, the internally mounted of metal casing 1 has electromagnetic mechanism 15, metal casing 1 has played the effect of protection electromagnetic mechanism 15, observe lid 9 is installed to metal casing 1's front end, it can follow the outside and look over whether damaged to observe inside coil to cover 9, plastics wire holder 2 is installed to metal casing 1's upper end, cap cover 5 is installed to plastics wire holder 2's upper end, terminal 3 is all installed to the top at 2 both ends of plastics wire holder, be provided with contact 4 on the terminal 3, metal casing 1's rear end is provided with installation piece 7, be provided with the hole groove on the installation piece 7, can accomplish direct current contactor's installation fixed work.

Further, the observation lid 9 includes plastics frame 10 and ya li ke observation window 11, ya li ke observation window 11 is installed in the inside of plastics frame 10, install magnetism on the rear end face of plastics frame 10 and inhale strip 14, when daily use, the ya li ke observation window 11 on the accessible observation lid 9 directly sees that whether electromagnetic mechanism 15 in the direct current contactor takes place the physics and damages, convenient in time overhaul, and when periodic maintenance, can lift observation lid 9 wholly off, and utilize temperature detector measuring coil temperature when operation direct current contactor, whether look over heat phenomenon because of ageing emergence, thereby in time change.

Further, the lower end of the plastic frame 10 is provided with a loading and unloading groove 12, the loading and unloading groove 12 and the plastic frame 10 are integrally formed, and the plastic frame 10 can be more conveniently disassembled and assembled through the loading and unloading groove 12.

Further, rubber seal strip 13 is installed at the edge of metal casing 1 and observation lid 9 junction, and rubber seal strip 13 has improved the sealing performance of observation lid 9 and metal casing 1 junction, avoids the dust to get into, leads to contact failure.

Further, plastics wire holder 2 passes through

first screw

6 and 5 threaded connection of cap, and plastics wire holder 2 passes through

second screw

16 and 1 threaded connection of metal casing, and cap 5, plastics wire holder 2 and metal casing 1 divide direct current contactor into the triplex, rely on the screw connection each other, and it is convenient to dismantle, conveniently changes interior component when overhauing.

Further, the inside of 1 both sides of metal casing all is provided with bar hole groove 8, and bar hole groove 8 cooperation bolt on the direct current contactor accessible installation piece 7 is fixed with the hookup point, adopts bar hole groove 8 to make the bolt fine setting about when the installation, lets the installation more nimble.

The working principle is as follows: during the use, at first rely on terminal 3 and nut to accomplish direct current contactor's wiring work, contactor metal casing 1's outside adopts magnetism to inhale and installs observation lid 9, during daily use, ya li ke observation window 11 on the accessible observation lid 9 directly perceivedly looks over whether electromagnetic mechanism 15 in the direct current contactor takes place the physical damage, convenient in time overhaul, and when periodic maintenance, can lift observation lid 9 wholly off, and utilize temperature detector measuring coil temperature when operation direct current contactor, look over whether take place overheat phenomenon because of ageing, thereby in time change, be provided with rubber seal strip 13 at observation lid 9 and metal casing 1's junction, can improve the sealing performance of both seams department, avoid the dust to get into, lead to contact failure, direct current contactor's life has been improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A DC contactor with internal observation function, comprising a metal shell (1), characterized in that: the internally mounted of metal casing (1) has electromagnetic mechanism (15), observation lid (9) are installed to the front end of metal casing (1), plastics wire holder (2) are installed to the upper end of metal casing (1), cap (5) are installed to the upper end of plastics wire holder (2), terminal (3) are all installed to the top at plastics wire holder (2) both ends, be provided with contact (4) on terminal (3), the rear end of metal casing (1) is provided with installation piece (7).

2. The dc contactor with internal observation function according to claim 1, wherein: observe lid (9) including plastics frame (10) and ya li ke observation window (11), install the inside at plastics frame (10) in ya li ke observation window (11), install magnetism on the rear end face of plastics frame (10) and inhale strip (14).

3. The dc contactor with internal observation function according to claim 2, wherein: the lower end of the plastic frame (10) is provided with a loading and unloading groove (12), and the loading and unloading groove (12) and the plastic frame (10) are integrally formed.

4. The dc contactor with internal observation function according to claim 1, wherein: and a rubber sealing strip (13) is arranged at the edge of the joint of the metal shell (1) and the observation cover (9).

5. The dc contactor with internal observation function according to claim 1, wherein: the plastic wire holder (2) is in threaded connection with the cap cover (5) through a first screw (6), and the plastic wire holder (2) is in threaded connection with the metal shell (1) through a second screw (16).

6. The dc contactor with internal observation function according to claim 1, wherein: the inside of metal casing (1) both sides all is provided with bar hole groove (8).