CN112863941A - Contactor device for coil protection and protection assembly - Google Patents

Abstract

The invention provides a contactor device and a protection assembly for coil protection, which comprise a protection seat, a second baffle and a third baffle, wherein a first accommodating space is formed in one side of the protection seat, the first baffle is respectively arranged at one side of the first accommodating space at two ends of the protection seat, the second baffle is arranged between the two first baffles, and the third baffle is attached to the first baffle and the second baffle. According to the invention, the first accommodating space is formed on one side of the protection seat, the coil assembly and the magnetic yoke are arranged in the first accommodating space, the first baffle plates are respectively arranged at two ends of the protection seat in a matched manner, the second baffle plate is arranged between the two first baffle plates, and the third baffle plate is fixed at one side end of the protection seat, so that the coil assembly and the magnetic yoke are enclosed in the first accommodating space by the first baffle plates, the second baffle plates and the third baffle plates, the protection effect on the coil assembly and the magnetic yoke is further formed, and the influence on the service life of the contactor caused by the dropping of external dust or water on the coil assembly or the magnetic yoke is effectively avoided.

Description

Contactor device for coil protection and protection assembly

Technical Field

The invention relates to the technical field of electrical equipment, in particular to a contactor device for coil protection and a protection assembly.

Background

The AC contactor is an automatic control electric appliance, mainly used for frequently switching on or switching off AC and DC, has large control capacity, can be operated remotely, is matched with a relay to realize timing operation, interlocking control, various quantitative control, voltage loss and undervoltage protection, and is widely applied to various automatic control circuits and electric appliances. An air conditioner is one of high-energy-consumption electric appliances, and an air conditioner alternating current contactor used in the air conditioner is generally assembled by a base, a contact assembly fixed on the base, a coil, an iron core, a contact support frame, a short circuit ring and the like.

In the prior art, a coil and a core of a general air conditioner alternating current contactor are exposed in the air, and no protective measures are added. Coil and iron core are the main electrified drive part of contactor, if the outside has dust, water droplet to cause the damage to the enameled wire of coil, can lead to coil turn-to-turn short circuit or temperature rise too high to make the coil burn, lead to the contactor can not normally work. If the dust can let the contactor produce the noise on falling the iron core, if the water droplet falls iron core on can accelerating the rust of iron core, reduce the life of contactor. Some customers may choose to add a box to protect the contactor outside of the entire contactor, but this increases the cost of installation for the customer.

Disclosure of Invention

The invention aims to provide a contactor device and a protection assembly for coil protection, which have simple structures and are convenient and quick to disassemble and assemble so as to meet the use requirements of different customers.

In order to achieve the purpose, the invention adopts the following technical means:

a contactor device for coil protection comprises a protection seat and a contact seat, wherein a first accommodating space is formed in one side of the protection seat, a coil assembly and a magnetic yoke are arranged in the first accommodating space of the protection seat, and the magnetic yoke is arranged on the coil assembly; a first spring part is arranged on one side of the contact seat, the first spring part is arranged between the contact seat and the protection seat, an armature and a moving contact are arranged on the contact seat, the armature is arranged in a manner of being matched with a magnetic yoke, and a static contact is arranged on the protection seat in a manner of being matched with the moving contact; the two ends of the protection seat are respectively provided with a first baffle in a protruding mode on one side of the first containing space, a second baffle is arranged between the first baffles, a third baffle is arranged on one side end portion of the protection seat, and the third baffle is attached to the first baffle and the second baffle.

In one embodiment, two sides of the inner wall of the first baffle plate are respectively provided with a guide groove, and two end parts of the second baffle plate are respectively clamped in the guide grooves.

In one embodiment, a side end of the protection seat is provided with a second clamping hole, the third baffle is fixed at the side end of the protection seat through a second screw, and the second screw penetrates through the third baffle and is clamped in the second clamping hole.

In one embodiment, two sides of the protective seat are respectively provided with a stop, the first baffle is arranged on the other two sides of the protective seat, the stop and the first baffle enclose to form an accommodating cavity, and the armature is arranged in the accommodating cavity.

In one embodiment, a second accommodating space is formed in the other side of the protective seat, the first accommodating space and the second accommodating space are separated by a first partition plate, and the fixed contact is arranged in a manner of being attached to the first partition plate; the middle part of the first clapboard is provided with a through groove, the contact seat passes through the through groove, and the moving contact is arranged in the second accommodating space.

In one embodiment, an end cover is arranged at one side end of the protection seat above the second accommodating space, cover plates are arranged at two sides of the end cover in a downward protruding mode, the end cover is arranged above the contact seat, and the cover plates are respectively arranged at two sides of the movable contact.

In one embodiment, a first clamping hole is formed in the other end of the protective seat, the end cover is fixed to the one end of the protective seat through a first screw, and the first screw penetrates through the end cover and is clamped in the first clamping hole.

In one embodiment, the coil assembly comprises a coil holder and a coil, the coil holder is arranged in the protective holder and is arranged in the first accommodating space, the coil and the magnetic yoke are arranged on the coil holder, the contact holder is arranged on one side of the coil holder, the first spring part is arranged between the contact holder and the coil holder, the stop dog is convexly provided with a limiting baffle towards one side, the limiting baffle is surrounded to form a limiting groove, and the first spring part is arranged in the limiting groove; the coil holder is convexly provided with a first limiting convex column at the limiting groove, the contact holder is convexly provided with a second limiting convex column at the limiting groove, and two ends of the first spring part are respectively clamped on the first limiting convex column and the second limiting convex column.

A protection assembly comprises a protection seat, a second baffle and a third baffle, wherein a first accommodating space is formed in one side of the protection seat, first baffles are respectively arranged at two ends of the protection seat on one side of the first accommodating space, the second baffle is arranged between the two first baffles, and the third baffle is attached to the first baffles and the second baffles; the protection seat, the second baffle and the third baffle are the protection seat, the second baffle and the third baffle.

In one embodiment, two sides of the inner wall of the first baffle plate are respectively provided with a guide groove, and two end parts of the second baffle plate are respectively clamped in the guide grooves.

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

according to the contactor device for coil protection, the first accommodating space is formed in one side of the protection seat, the coil assembly and the magnetic yoke are arranged in the first accommodating space, the first baffle plates are arranged at two ends of the protection seat in a matched mode respectively, the second baffle plate is arranged between the two first baffle plates, the third baffle plate is fixed to the end portion of one side of the protection seat, the coil assembly and the magnetic yoke are surrounded in the first accommodating space through the first baffle plates, the second baffle plates and the third baffle plates, the protection effect on the coil assembly and the magnetic yoke is further formed, and the problem that the service life of the contactor is affected due to the fact that external dust or water drops on the coil assembly or the magnetic yoke is effectively avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 shows a schematic structural view of a contactor device for coil shielding according to the present invention;

FIG. 2 shows an exploded view of a contactor device for coil shielding in accordance with the present invention;

FIG. 3 is an exploded view of another perspective of a contactor device for coil shielding in accordance with the present invention;

figure 4 shows a schematic view of the construction of the protective seat according to the invention;

FIG. 5 is a schematic view of the structure of the shield seat of the present invention from another perspective;

FIG. 6 shows a schematic structural view of a coil holder according to the invention;

figure 7 shows a schematic view of the contact block of the present invention;

FIG. 8 is a schematic view of another alternate view of the contact block of the present invention;

FIG. 9 is a schematic view of a contactor device for coil shielding according to the present invention with a third shutter hidden;

FIG. 10 is a schematic view of a contactor device for coil shielding according to the present invention with the second shield, the third shield and the coil hidden;

fig. 11 is a schematic structural view of a contactor device for coil protection according to the present invention with the second barrier, the third barrier, the coil assembly and the yoke hidden;

fig. 12 is a schematic structural view of a contactor device for coil protection according to the present invention after hiding the second barrier, the third barrier, the coil block, the yoke and the first spring member.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 12, the contactor device for coil protection according to the present invention includes a protection seat 100 and a contact seat 200, wherein one side of the protection seat 100 is provided with a first accommodating space 110, the other side of the protection seat 100 is provided with a second accommodating space 120, the first accommodating space 110 and the second accommodating space 120 are separated by a first partition 130, a through groove 131 is formed in the middle of the first partition 130, and the through groove 131 enables the first accommodating space 110 and the second accommodating space 120 to be communicated with each other.

The protective seat 100 is provided with a coil assembly 140 and a magnetic yoke 150 in the first accommodating space 110, the cross section of the magnetic yoke 150 is of a mountain-shaped structure, and the magnetic yoke 150 is arranged on the coil assembly 140; the first spring member 300 is disposed on one side of the contact block 200, the first spring member 300 is disposed between the contact block 200 and the shielding block 100 for providing an acting force required for the contact block 200 to return, and further, the first spring member 300 is disposed between the contact block 200 and the coil assembly 140.

Specifically, the coil assembly 140 includes a coil holder 141 and a coil 142, the coil holder 141 is disposed in the first accommodating space 110 of the protective seat 100, the coil 142 and the magnetic yoke 150 are disposed on the coil holder 141, two sides of the coil holder 141 are respectively provided with a connection terminal 143, and an external circuit is electrically connected to the coil 142 through the connection terminal 143, so as to conveniently perform an electrical conduction process on the coil 142; the contact base 200 is arranged above the coil base 141, the first spring member 300 is arranged between the contact base 200 and the coil base 141, the bottom end portion of the contact base 200 is provided with an armature 210, the armature 210 is arranged in a manner of being matched with the magnetic yoke 150, the contact base 200 is provided with a movable contact 220, the contact base 200 penetrates through the through groove 131, the armature 210 is arranged in the first accommodating space 110, and the movable contact 220 is arranged in the second accommodating space 120.

In one embodiment, the upper end of the yoke 150 is held and provided with a short ring 151, and the short ring 151 is used for overcoming the tendency that the armature 210 is released, so that the armature 210 is always in an attraction state during the energization of the coil 142, and vibration noise is reduced.

In one embodiment, the coil holder 141 includes a substrate 1411, a covering housing 1412 protrudes from a middle portion of the substrate 1411, a through hole 1413 penetrating through the substrate 1411 is formed at a bottom end portion of the covering housing 1412, a middle portion of the yoke 150 is disposed in the covering housing 1412 and can protrude out of the through hole 1413, the coil 142 is wound around the covering housing 1412, and two sides of the yoke 150 are disposed on two sides of the covering housing 1412, respectively, so that the coil 142 and the yoke 150 can be stably fixed on the coil holder 141.

The protection seat 100 is provided with a fixed contact 400 at the position of the movable contact 220 in a matching manner, the fixed contact 400 is attached to the first partition plate 130, the fixed contact 400 is arranged in a matching manner with the movable contact 220, when the coil 142 is electrified, the current of the coil 142 can generate a magnetic field to enable the magnetic yoke 150 to generate electromagnetic attraction to attract the armature 210, at the moment, the first spring part 300 is in a compression state, because the movable contact 220 is fixedly connected with the armature 210 through the contact seat 200, the armature 210 drives the contact seat 200 and the movable contact 220 to move together, and when the movable contact 220 moves to be in contact with the fixed contact 400, the contactor is; when the coil 142 is powered off, the yoke 150 has no attraction force, and the first spring member 300 in the compressed state applies a force to the armature 210, so that the armature 210 moves toward the original position, the contact base 200 and the movable contact 220 also return to the original state along with the armature 210, the movable contact 220 is separated from the fixed contact 400, and the contactor is in the off state.

The end of one side of the protective seat 100 is provided with an end cover 500 above the second accommodation space 120, two sides of the end cover 500 are provided with downward convex cover plates 510, the end cover 500 is arranged above the contact seat 200, the cover plates 510 are respectively arranged at two sides of the movable contact 220, and the end cover 500 is used for limiting the contact seat 200, the movable contact 220 and the fixed contact 400, so as to prevent the contact from separating from the contact seat 200, the movable contact 220 and the fixed contact 400 when the contactor moves, and thus, the service life of the contactor is not affected.

In one embodiment, a first locking hole 101 is formed at one side end of the protection seat 100, the end cap 500 is fixed at one side end of the protection seat 100 by a first screw 102, and the first screw 102 penetrates through the end cap 500 and is locked in the first locking hole 101, so that the end cap 500 can be firmly fixed on the protection seat 100.

The two end portions of the protective base 100 on one side of the second accommodating space 120 are respectively provided with a clamping groove 121, a terminal base 600 is clamped in the clamping groove 121, and the terminal base 600 is electrically connected with the static contact 400; specifically, the terminal base 600 includes a clamping column 610 and a connecting terminal 620, the clamping column 610 is clamped in the clamping slot 121, the welding end of the connecting terminal 620 is clamped on the clamping column 610, so that the connecting terminal 620 is electrically connected with the static contact 400, and the connecting end of the connecting terminal 620 is used for being connected with an external circuit.

The two ends of the protection seat 100 are respectively provided with a first baffle 160 protruding from one side of the first accommodating space 110, two sides of the inner wall of the first baffle 160 are respectively provided with a guide groove 161, a second baffle 700 is arranged between the two first baffles 160, the bottom end of one side of the protection seat 100 is provided with a third baffle 800, two ends of the second baffle 700 are respectively clamped in the guide grooves 161, and the third baffle 800 is attached to the first baffle 160 and the second baffle 700, so that the coil assembly 140 and the magnetic yoke 150 are enclosed in the first accommodating space 110 by the first baffle 160, the second baffle 700 and the third baffle 800, thereby forming a protection effect on the coil assembly 140 and the magnetic yoke 150, and effectively preventing external dust or water from dropping on the coil 142 of the coil assembly 140 or the magnetic yoke 150 to affect the service life of the contactor.

Specifically, stoppers 180 are respectively disposed on two sides of the protective seat 100 above the coil seat 141, the first baffles 160 are respectively disposed on the other two sides of the protective seat 100, the stoppers 180 and the first baffles 160 surround to form an accommodating cavity 111, and the armature 210 is disposed in the accommodating cavity 111; the sectional length of the first baffle 160 is greater than the sectional length of the stopper 180, the guide groove 161 formed in the inner side of the first baffle 160 extends to the end surface of the stopper 180, the lower end surface of the second baffle 700 is respectively attached to the end surface of the coil holder 141 and the upper end surface of the stopper 180, and the lower end surface of the third baffle 800 is matched with the upper end surface of the first baffle 160 and the upper end surface of the second baffle 700, so that the coil assembly 140 and the yoke 150 are enclosed in the first accommodating space 110 by the first baffle 160, the second baffle 700 and the third baffle 800, a protection effect on the coil assembly 140 and the yoke 150 is formed, and external dust or water is effectively prevented from dropping on the coil 142 of the coil assembly 140 or the yoke 150 to affect the service life of the contactor.

In other embodiments, the guide slot 161 of the first blocking plate 160 may be replaced with a fixing hole structure, and the second blocking plate 700 may be fixedly disposed with the first blocking plate 160 through a screw member, and the screw member passes through the second blocking plate 700 and the fixing hole to achieve a stable connection effect between the second blocking plate 700 and the first blocking plate 160.

In one embodiment, a limit baffle 181 protrudes from the middle of the stopper 180 towards one side, the limit baffle 181 surrounds to form a limit groove 182, and the first spring element 300 is placed in the limit groove 182; specifically, the coil holder 141 is convexly provided with a first limiting convex column 1414 at the limiting slot 182, the contact holder 200 is convexly provided with a second limiting convex column 230 at the limiting slot 182, and two ends of the first spring element 300 are respectively clamped on the first limiting convex column 1414 and the second limiting convex column 230, so that the first spring element 300 can be stably clamped between the coil holder 141 and the contact holder 200.

In one embodiment, the contact seat 200 is provided with a base 240, the armature 210 is fixed below the base 240 by a rivet 250, and the second limiting convex column 230 is arranged on the other two sides of the base 240; the upper end of the base 240 is provided with a support seat 260 in an upward protruding manner, a through hole 261 is formed in the support seat 260, and the moving contact 220 penetrates through the through hole 261, so that two ends of the moving contact 220 are respectively matched with the static contacts 400; a third limiting convex column 262 is convexly arranged on the supporting seat 260 at the through hole 261, a fourth limiting convex column 221 is convexly arranged in the middle of the moving contact 220, and a second spring member 270 is arranged between the third limiting convex column 262 and the fourth limiting convex column 221; when the magnetic yoke 150 generates electromagnetic attraction force and then attracts the armature 210 to move downwards, at this time, the armature 210 drives the contact seat 200 and the movable contact 220 to move together, and the movable contact 220 can move towards the direction contacting with the fixed contact 400, and due to the buffering effect of the second spring part 270, the phenomenon that the movable contact 220 and the fixed contact 400 are damaged due to the fact that the armature 210 continues to move downwards after the movable contact 220 contacts with the fixed contact 400 is effectively avoided, and the service life of the contactor is greatly prolonged.

In one embodiment, the protection seat 100 is provided with a second partition plate 190 in the second accommodation space 120, the second partition plate 190 separates the supporting seat 260, and the base 240 is disposed below the second partition plate 190, so that the contact block 200 can be disposed between the second partition plate 190 and the coil block 141, thereby forming a limiting effect on the contact block 200, and preventing the contact block 200 from being separated from the second accommodation space 120 to affect the using effect of the contactor.

In one embodiment, the other end of the protective seat 100 is provided with a second engaging hole 103, the third baffle 800 is fixed to one end of the protective seat 100 by a second screw 104, and the second screw 104 penetrates through the third baffle 800 and is engaged in the second engaging hole 103, so that the third baffle 800 can be firmly fixed to the protective seat 100.

The invention also provides a protection assembly, which comprises the protection seat 100, the second baffle plate 700 and the third baffle plate 800 of the contactor device for coil protection.

The protection seat 100 is provided with a first accommodating space 110 on one side, the protection seat 100 is used for arranging the coil assembly 140 and the magnetic yoke 150, two ends of the protection seat 100 are respectively provided with a first baffle 160 on one side of the first accommodating space 110, the second baffle 700 is arranged between the two first baffles 160, guide grooves 161 are respectively arranged on two sides of the inner wall of the first baffle 160, two ends of the second baffle 700 are respectively clamped in the guide grooves 161, and the third baffle 800 is attached to the first baffle 160 and the second baffle 700, so that the coil assembly 140 and the magnetic yoke 150 are enclosed in the first accommodating space 110 by the first baffle 160, the second baffle 700 and the third baffle 800, a protection effect on the coil assembly 140 and the magnetic yoke 150 is further formed, and the influence of external dust or water drops on the coil assembly 140 or the magnetic yoke 150 to the service life of the contactor is effectively avoided.

Other technical features of the above-mentioned protection assembly are the same as those of the above-mentioned contactor device for coil protection, and are not described herein again.

When the invention is specifically assembled, the static contact 400 is fixedly connected with the terminal base 600, then the terminal base 600 is placed in the clamping groove 121 on the protection base 100, and a screw is used to pass through the static contact 400 to stably fix the static contact 400 in the protection base 100; the contact seat 200 penetrates through the through groove 131 to be clamped in the protection seat 100, the moving contact 220 is clamped on the contact seat 200, and finally the end cover 500 is covered on the protection seat 100 and used for limiting the contact seat 200, the moving contact 220 and the static contact 400 so as to prevent the contact seat 200, the moving contact 220 and the static contact 400 from being separated from each other to influence the service life of the contact when the contact moves; after the assembly of the components on one side of the second accommodating space 120 is completed, the assembly of the components on one side of the first accommodating space 110 is started, the coil assembly 140 is assembled by the coil 142 and the coil holder 141, the first spring member 300 is placed between the contact holder 200 and the coil holder 141, and at this time, the yoke 150 is placed on the coil holder 141.

When the coil assembly 140 and the yoke 150 need to be protected, the second baffle 700 is sequentially installed along the direction of the guide slot 161, so that the end surface of the second baffle 700 is respectively attached to the end surface of the coil holder 141 and the end surface of the baffle 180, and then the third baffle 800 is installed at one side end of the protection seat 100, so that the first baffle 160, the second baffle 700 and the third baffle 800 enclose the coil assembly 140 and the yoke 150 in the first accommodating space 110, thereby forming a protection effect on the coil assembly 140 and the yoke 150, and effectively preventing external dust or water from dropping on the coil assembly 140 or the yoke 150 to influence the service life of the contactor.

When the coil assembly 140 and the magnetic yoke 150 do not need to be protected, the third baffle 800 can be detached from the protection seat 100 by rotating the second screw 104, and then the second baffle 700 can be detached from the protection seat 100 along the direction of the guide groove 161, so that the contactor assembly structure without the protection of the coil assembly 140 and the magnetic yoke 150 can be completed, and the use requirements of different customers can be met.

In summary, according to the contactor device and the protective assembly for coil protection of the present invention, the first accommodating space 110 is formed at one side of the protective base 100, the coil assembly 140 and the magnetic yoke 150 are disposed in the first accommodating space 110, the first baffle 160 is disposed at two ends of the protective base 100, the second baffle 700 is disposed between the two first baffles 160, and the third baffle 800 is fixed at one side end of the protective base 100, so that the coil assembly 140 and the magnetic yoke 150 are enclosed in the first accommodating space 110 by the first baffle 160, the second baffle 700, and the third baffle 800, thereby forming a protective effect for the coil assembly 140 and the magnetic yoke 150, and effectively preventing external dust or water from dropping on the coil assembly 140 or the magnetic yoke 150 to affect the service life of the contactor.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A contactor device for coil protection, characterized by: the contact structure comprises a protection seat and a contact seat, wherein a first accommodating space is formed in one side of the protection seat, a coil assembly and a magnetic yoke are arranged in the first accommodating space of the protection seat, and the magnetic yoke is arranged on the coil assembly; a first spring part is arranged on one side of the contact seat, the first spring part is arranged between the contact seat and the protection seat, an armature and a moving contact are arranged on the contact seat, the armature is arranged in a manner of being matched with a magnetic yoke, and a static contact is arranged on the protection seat in a manner of being matched with the moving contact; the two ends of the protection seat are respectively provided with a first baffle in a protruding mode on one side of the first containing space, a second baffle is arranged between the first baffles, a third baffle is arranged on one side end portion of the protection seat, and the third baffle is attached to the first baffle and the second baffle.

2. A contactor device for coil shielding according to claim 1, wherein: guide grooves are formed in two sides of the inner wall of the first baffle respectively, and two end portions of the second baffle are clamped in the guide grooves respectively.

3. A contactor device for coil shielding according to claim 1, wherein: the end part of one side of the protection seat is provided with a second clamping hole, the third baffle plate is fixed at the end part of one side of the protection seat through a second screw piece, and the second screw piece penetrates through the third baffle plate and is clamped in the second clamping hole.

4. A contactor device for coil shielding according to claim 1, wherein: the protective seat is characterized in that stop blocks are respectively arranged on two sides of the protective seat, the first baffle plates are arranged on the other two sides of the protective seat, the stop blocks and the first baffle plates are arranged in an enclosing mode to form accommodating cavities, and the armature iron is arranged in the accommodating cavities.

5. A contactor device for coil protection according to any of claims 1 to 4, wherein: a second accommodating space is formed in the other side of the protective seat, the first accommodating space and the second accommodating space are separated by a first partition plate, and the static contact is arranged by being attached to the first partition plate; the middle part of the first clapboard is provided with a through groove, the contact seat passes through the through groove, and the moving contact is arranged in the second accommodating space.

6. A contactor device for coil shielding according to claim 5, wherein: an end cover is arranged on one side end of the protection seat above the second accommodating space, cover plates are arranged on two sides of the end cover in a downward protruding mode, the end cover is arranged above the contact seat, and the cover plates are arranged on two sides of the moving contact respectively.

7. A contactor device for coil shielding according to claim 6, wherein: the end part of the other side of the protection seat is provided with a first clamping hole, the end cover is fixed at the end part of the one side of the protection seat through a first screw piece, and the first screw piece penetrates through the end cover and is clamped in the first clamping hole.

8. A contactor device for coil protection according to any of claims 1 to 4, wherein: the coil assembly comprises a coil holder and a coil, the coil holder is arranged in the first accommodating space of the protection holder, the coil and a magnetic yoke are arranged on the coil holder, the contact holder is arranged on one side of the coil holder, the first spring part is arranged between the contact holder and the coil holder, the stop block is convexly provided with a limit baffle plate towards one side, the limit baffle plate is surrounded to form a limit groove, and the first spring part is arranged in the limit groove; the coil holder is convexly provided with a first limiting convex column at the limiting groove, the contact holder is convexly provided with a second limiting convex column at the limiting groove, and two ends of the first spring part are respectively clamped on the first limiting convex column and the second limiting convex column.

9. A protective assembly, characterized by: the protective seat comprises a protective seat, a second baffle and a third baffle, wherein a first accommodating space is formed in one side of the protective seat, first baffles are respectively arranged at two ends of the protective seat on one side of the first accommodating space, the second baffle is arranged between the two first baffles, and the third baffle is attached to the first baffles and the second baffles; wherein the protection seat, the second baffle plate and the third baffle plate are the protection seat, the second baffle plate and the third baffle plate as claimed in any one of claims 1 to 8.

10. A shield assembly according to claim 9, wherein: guide grooves are formed in two sides of the inner wall of the first baffle respectively, and two end portions of the second baffle are clamped in the guide grooves respectively.

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