CN112309771A

CN112309771A - Protective device for alternating current contactor

Info

Publication number: CN112309771A
Application number: CN202011163328.7A
Authority: CN
Inventors: 孙瑞忠
Original assignee: Yangzhou Tongli Electric Co ltd
Current assignee: Yangzhou Tongli Electric Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-02-02

Abstract

The invention relates to the technical field of contactors, and discloses an alternating current contactor protection device which comprises an installation plate, a protection cover and a sealing cover; a protective cover is fixedly bonded on the front side surface of the mounting plate, the top surface and the bottom surface of the protective cover are vertically penetrated and provided with exhaust holes, the left side surface and the right side surface of the protective cover are transversely penetrated and provided with wiring holes, and rubber rings are fixedly bonded in inner cavities of the two groups of wiring holes; the mounting panel front side is provided with the closing cap, the inlet port has been seted up in the middle part of closing cap leading flank, closing cap inner chamber middle part is provided with fixed frame. According to the invention, through the arrangement of the protective cover, the mounting plate and the sealing cover, the alternating current contactor is fixedly mounted in the inner cavity of the protective cover at the front side of the mounting plate, so that the alternating current contactor can be protected by the protective cover, the mounting plate and the sealing cover in the use process, and the accidental damage of the alternating current contactor caused by the impact of an external object on the alternating current contactor is avoided.

Description

Protective device for alternating current contactor

Technical Field

The invention relates to the technical field of contactors, in particular to an alternating current contactor protection device.

Background

The working principle of the alternating current contactor is that the contact is connected and disconnected by matching electromagnetic force with the elastic force of a spring. The alternating current contactor has two working states, namely a power-off state (release state) and a power-on state (action state). When the attraction coil is electrified, the static iron core generates electromagnetic attraction force, the armature is attracted, and the connecting rod connected with the armature drives the contact to act, so that the normally closed contact breaking contactor is in an electrified state; when the attraction coil is powered off, the electromagnetic attraction force disappears, the armature is reopened, the normally open contact is closed, the normally open contact is released under the action of the position spring, all the contacts reset accordingly, and the contactor is in a power-off state.

Alternating current contactor exposes in external environment in the in-process of in-service use for a long time, leads to the dust accumulation on alternating current contactor easily, causes alternating current contactor radiating efficiency to reduce, and moisture causes the short circuit along flowing to alternating current contactor along the wire outer wall easily, and direct exposure uses the striking that receives external object easily in external environment to cause the damage, and current alternating current contactor's heat-sinking capability is relatively poor, is unfavorable for alternating current contactor's steady operation.

In order to solve the above problems, the present invention provides a protection device for an ac contactor.

Disclosure of Invention

The invention aims to provide an alternating current contactor protection device, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an alternating current contactor protection device comprises a mounting plate, a protection cover and a sealing cover;

a protective cover is fixedly bonded on the front side surface of the mounting plate, the top surface and the bottom surface of the protective cover are vertically penetrated and provided with exhaust holes, the left side surface and the right side surface of the protective cover are transversely penetrated and provided with wiring holes, and rubber rings are fixedly bonded in inner cavities of the two groups of wiring holes;

the mounting panel front side is provided with the closing cap, the inlet port has been seted up in the middle part of the closing cap leading flank through, closing cap inner chamber middle part is provided with fixed frame, fixed frame left and right sides symmetry horizontal fixation bonds there is the bracing piece, micro motor is installed in fixed embedding in fixed frame middle part, micro motor rotates in the middle part and is provided with the pivot, pivot front end fixed mounting has the flabellum.

In a preferred embodiment of the present invention, bolt holes are formed through the mounting plate between the front and rear side edges, and the bolt holes are located outside the protective cover.

In a preferred embodiment of the present invention, four corners of the front side of the mounting plate are respectively provided with screw grooves, and the four sets of screw grooves are located inside the protective cover.

In a preferred embodiment of the present invention, the inner walls of the two sets of exhaust holes are fixedly embedded with filter screens B.

As a preferred embodiment of the invention, the front side of the inner wall of the air inlet is connected with a filter frame in a threaded manner, and a filter screen A is fixedly embedded and installed on the inner wall of the filter frame.

As a preferred embodiment of the present invention, one end of each of the two sets of support rods, which is far away from the fixing frame, is fixedly connected to the inner wall of the sealing cover through a fixing screw B.

In a preferred embodiment of the present invention, the middle portion of the sidewall of the cover and the front side of the sidewall of the protective cover are fixedly connected by a fixing screw a.

As a preferred embodiment of the present invention, the fan blade and the micro motor are both located in the inner cavity of the air inlet.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the alternating current contactor protection device, the rubber ring is arranged, the lead penetrates through the middle of the rubber ring in the inner cavity of the wiring hole, then the lead is connected to the alternating current contactor, the rubber ring can effectively prevent water from flowing onto the alternating current contactor along the outer wall of the lead, and short circuit of the alternating current contactor caused by water permeation is avoided.

2. According to the alternating current contactor protection device, due to the arrangement of the protection cover, the mounting plate and the sealing cover, the alternating current contactor is fixedly mounted in the inner cavity of the protection cover on the front side of the mounting plate, so that the alternating current contactor can be protected by the protection cover, the mounting plate and the sealing cover in the using process, and accidental damage of the alternating current contactor caused by the fact that an external object impacts the alternating current contactor is avoided.

3. According to the alternating current contactor protection device, the micro motor drives the fan blades to rotate through the rotating shaft through the arrangement of the micro motor, the fan blades enable external air to enter the inner cavity of the sealing cover through the air inlet holes and blow into the inner cavity of the protection cover through rotation, then the air in the inner cavity of the protection cover is discharged out of the inner cavity of the protection cover through the air outlet holes, the air flow rate on the surface of the alternating current contactor can be accelerated, heat generated when the alternating current contactor is used can be dissipated more quickly, and the stability of the alternating current contactor during use is improved.

4. According to the alternating current contactor protection device, through the arrangement of the filter screen A and the filter screen B, the filter screen A and the filter screen B can filter air entering and exiting the inner cavity of the protection cover, so that dust can be effectively prevented from entering the inner cavity of the protection cover and being attached to an alternating current contactor, and the problem of reduction of heat dissipation efficiency caused by dust accumulation on the alternating current contactor is solved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic perspective view of an ac contactor protection device according to the present invention;

FIG. 2 is a schematic perspective view of a mounting plate of an AC contactor protection device according to the present invention;

FIG. 3 is a front sectional view of a protective cover, vent and terminal hole of an AC contactor protective device according to the present invention;

FIG. 4 is a top cross-sectional view of a cover of an AC contactor guard of the present invention;

fig. 5 is a front cross-sectional connection view of a cover and a protective cover of an ac contactor guard according to the present invention.

In the figure: 1. an air inlet; 2. a filter frame; 3. a filter screen A; 4. sealing the cover; 5. a fixing screw A; 6. a protective cover; 7. an exhaust hole; 8. mounting a plate; 9. bolt holes; 10. a wiring hole; 11. a screw groove; 12. a filter screen B; 13. a rubber ring; 14. a micro motor; 15. a fixing frame; 16. a support bar; 17. a fixing screw B; 18. a fan blade; 19. a rotating shaft.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the types of the electrical appliances provided in the present invention are only used for reference, and for those skilled in the art, different types of electrical appliances with the same function can be replaced according to the actual use condition, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.

Referring to fig. 1-5, the present invention provides a technical solution: an alternating current contactor protection device comprises a mounting plate 8, a protective cover 6 and a sealing cover 4;

a protective cover 6 is fixedly bonded on the front side surface of the mounting plate 8, the top surface and the bottom surface of the protective cover 6 are vertically penetrated and provided with exhaust holes 7, the left side surface and the right side surface of the protective cover 6 are transversely penetrated and provided with wiring holes 10, and rubber rings 13 are fixedly bonded in the inner cavities of the two groups of wiring holes 10;

8 front sides of mounting panel are provided with closing

cap

4, 4 leading flank middle parts of closing cap run through and have seted up

inlet port

1, 4 inner chamber middle parts of closing cap are provided with fixed frame 15, the horizontal fixed bonding of fixed frame 15 left and right sides symmetry has bracing piece 16, fixed frame 15 middle part fixed embedding installs micro motor 14, micro motor 14 middle part is rotated and is provided with

pivot

19, 19 front end fixed mounting of pivot has flabellum 18.

In this embodiment (see fig. 1), the ac contactor is placed in the inner cavity of the protection cover 6, and then the ac contactor is fixedly connected with the screw groove 11 on the front side surface of the mounting plate 8 by screws, so that the AC contactor is fixedly arranged in the inner cavity of the front side protective cover 6 of the mounting plate 8, the lead wire passes through the middle part of the rubber ring 13 in the inner cavity of the wiring hole 10, then leads are connected to the AC contactor, the micro motor 14 is connected with a power supply line of the AC contactor through the leads, then cover 4 is covered on the front side of the protective cover 6, and the cover 4 is fixedly connected with the protective cover 6 through a fixing screw A5, the micro motor 14 drives the fan blade 18 to rotate through the rotating shaft 19, the fan blade 18 enables outside air to enter the inner cavity of the cover 4 through the air inlet hole 1 and blow into the inner cavity of the protective cover 6 through rotation, and then the air in the inner cavity of the protective cover 6 is discharged out of the inner cavity of the protective cover 6 through the air outlet hole 7.

Bolt holes 9 are formed in the edges of the front side face and the rear side face of the mounting plate 8 in a penetrating mode, and the bolt holes 9 are located on the outer side of the protection cover 6.

In this embodiment (see fig. 1), the bolt hole 9 is provided, and the fixing bolt is inserted into the cavity of the bolt hole 9, and then the mounting plate 8 can be fixedly mounted on the external support structure by the fixing bolt.

Wherein, screw groove 11, four groups have all been seted up in 8 leading flank four corners of mounting panel screw groove 11 all is located safety cover 6 inboardly.

In this embodiment (see fig. 1), the ac contactor can be fixedly connected to the screw groove 11 by the fixing screw through the arrangement of the screw groove 11, so that the ac contactor is fixedly mounted on the front side of the mounting plate 8.

Wherein, filter screens B12 are fixedly embedded in the inner walls of the two groups of exhaust holes 7.

In this embodiment (see fig. 1), the arrangement of the filtering net B12 allows for the filtering net B12 to prevent dust from entering the inner cavity of the protecting cover 8 through the air outlet 7.

Wherein, the screw thread connection in the front of the inner wall of inlet port 1 has filter frame 2, filter screen A3 is installed to fixed embedding on the 2 inner walls of filter frame.

In this embodiment (please refer to fig. 1), the filter screen A3 can prevent dust in the air from entering the inner cavity of the protection cover 6 through the air inlet hole 1 by the arrangement of the filter screen A3.

Wherein, two sets of the supporting rods 16 are all fixedly connected with the inner wall of the sealing cover 4 through fixing screws B17 at the ends far away from the fixing frame 15.

In this embodiment (see fig. 1), the support rod 16 and the fixing frame 15 can fix and support the micro motor 14 by the fixing frame 15 and the support rod 16.

The middle part of the side wall of the cover 4 is fixedly connected with the front side of the side wall of the protective cover 6 through a fixing screw A5.

In this embodiment (please refer to fig. 1), the set screw a5 is provided, and the fixing screw a5 is used to fix and sleeve the cover 4 on the front end of the outer wall of the protecting cover 6.

Wherein, the fan blade 18 and the micro motor 14 are both positioned in the inner cavity of the air inlet 1.

In this embodiment (please refer to fig. 1), through the arrangement of the fan blade 18, the micro-motor 14 drives the fan blade 18 to rotate through the rotating shaft 19, so as to start to make the external air enter the inner cavity of the sealing cover 4 through the air inlet hole 1.

The invention relates to an alternating current contactor protection device, which comprises an air inlet 1 and an air outlet; 2. a filter frame; 3. a filter screen A; 4. sealing the cover; 5. a fixing screw A; 6. a protective cover; 7. an exhaust hole; 8. mounting a plate; 9. bolt holes; 10. a wiring hole; 11. a screw groove; 12. a filter screen B; 13. a rubber ring; 14. a micro motor; 15. a fixing frame; 16. a support bar; 17. a fixing screw B; 18. a fan blade; 19. the shaft and the components are all standard parts or components known to those skilled in the art, and the structure and principle of the shaft and the components are known to those skilled in the art through technical manuals or through routine experiments.

When in use, the AC contactor is placed in the inner cavity of the protective cover 6, and then the AC contactor is fixedly connected with the screw groove 11 on the front side surface of the mounting plate 8 through screws, so that the AC contactor is fixedly arranged in the inner cavity of the front side protective cover 6 of the mounting plate 8, the lead wire passes through the middle part of the rubber ring 13 in the inner cavity of the wiring hole 10, then leads are connected to the AC contactor, the micro motor 14 is connected with a power supply line of the AC contactor through the leads, then cover 4 is covered on the front side of the protective cover 6, and the cover 4 is fixedly connected with the protective cover 6 through a fixing screw A5, the micro motor 14 drives the fan blade 18 to rotate through the rotating shaft 19, the fan blade 18 enables outside air to enter the inner cavity of the cover 4 through the air inlet hole 1 and blow into the inner cavity of the protective cover 6 through rotation, and then the air in the inner cavity of the protective cover 6 is discharged out of the inner cavity of the protective cover 6 through the air outlet hole 7.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The alternating current contactor protection device is characterized by comprising a mounting plate (8), a protection cover (6) and a sealing cover (4);

a protective cover (6) is fixedly bonded on the front side surface of the mounting plate (8), exhaust holes (7) are vertically formed in the top surface and the bottom surface of the protective cover (6) in a penetrating mode, wiring holes (10) are transversely formed in the left side surface and the right side surface of the protective cover (6) in a penetrating mode, and rubber rings (13) are fixedly bonded in inner cavities of the two groups of wiring holes (10);

mounting panel (8) front side is provided with closing cap (4), closing cap (4) leading flank middle part is run through and has been seted up inlet port (1), closing cap (4) inner chamber middle part is provided with fixed frame (15), fixed frame (15) left and right sides symmetry horizontal fixed bonding has bracing piece (16), micro motor (14) are installed in fixed frame (15) middle part fixed embedding, micro motor (14) rotation in middle part is provided with pivot (19), pivot (19) front end fixed mounting has flabellum (18).

2. An ac contactor protector as claimed in claim 1, wherein: bolt hole (9) have been seted up in running through between mounting panel (8) front and back both sides face edge, bolt hole (9) are located safety cover (6) outside.

3. An ac contactor protector as claimed in claim 1, wherein: screw groove (11), four groups have all been seted up in mounting panel (8) leading flank four corners screw groove (11) all are located safety cover (6) inboardly.

4. An ac contactor protector as claimed in claim 1, wherein: and filter screens B (12) are fixedly embedded into the inner walls of the two groups of exhaust holes (7).

5. An ac contactor protector as claimed in claim 1, wherein: the filter is characterized in that the front side of the inner wall of the air inlet hole (1) is connected with a filter frame (2) in a threaded manner, and a filter screen A (3) is fixedly embedded in the inner wall of the filter frame (2).

6. An ac contactor protector as claimed in claim 1, wherein: and one ends of the two groups of support rods (16) far away from the fixed frame (15) are fixedly connected with the inner wall of the sealing cover (4) through fixing screws B (17).

7. An ac contactor protector as claimed in claim 1, wherein: the middle part of the side wall of the sealing cover (4) is fixedly connected with the front side of the side wall of the protective cover (6) through a fixing screw A (5).

8. An ac contactor protector as claimed in claim 1, wherein: the fan blades (18) and the micro motor (14) are both positioned in the inner cavity of the air inlet hole (1).