Armature assembly structure and contactor

Abstract

The utility model belongs to low -voltage electric appliance technical field discloses a kind of armature assembly structure and contactor, armature assembly structure includes contact support, armature and assembly piece, contact support is configured as being mounted to the base of contactor;Armature is connected to contact support;Assembly piece is clamped in contact support, and assembly piece is provided with first buffer surface and second buffer surface.By being provided with the assembly piece with first buffer surface and second buffer surface, when entire assembly structure is impacted, first buffer surface can bear part of impact force by the contact with armature, play better buffering effect between armature and contact support, second buffer surface can bear part of impact force by the contact with base, play better buffering effect between contact support and base, and since assembly piece is clamped on contact support, installation stability is better, avoid from contact support, thereby stably and reliably buffer protection effect is played to contact support.

Description

TECHNICAL FIELD

[0001] The utility model relates to low -voltage electric appliance technical field especially relates to a armature assembly structure and contactor. BACKGROUND

[0002] The contactor is one of the main low-voltage electric appliances for controlling motor and power circuit, and its main function is to remotely and frequently connect and disconnect, and carry motor circuit or power supply circuit. The contactor usually comprises a contact system, an electromagnetic system, a support / insulation system, etc., wherein the contact system comprises movable and static contacts, a base bearing the static contacts, a contact support bearing the back-and-forth movement of the movable contacts, and an armature magnetically attracted to the electromagnetic system. The armature is installed on the contact support to drive the contact support to move under the action of magnetic attraction.

[0003] Most of the contactors in the prior art usually only use screws to fix the armature on the contact support, and some contactors further sandwich a buffer gasket between the contact support and the armature to buffer the contact support and the armature. On the one hand, the buffer gasket is not firmly installed between the contact support and the armature, and there is a risk of displacement and dislocation. On the other hand, only the contact support and the armature are buffered, which cannot effectively protect the contact support, and may still cause deformation and damage of the contact support.

[0004] Therefore, there is an urgent need for an armature assembly structure and a contactor to solve the above problems in the prior art. SUMMARY

[0005] The utility model aims at providing an armature assembly structure and a contactor, which can stably and reliably improve the buffering protection effect of the contact support after assembly, and reduce the problems of deformation and damage of the contact support.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] On the one hand, an armature assembly structure is provided, comprising:

[0008] a contact support configured to be installed on a base of a contactor;

[0009] an armature connected to the contact support;

[0010] an assembly member clamped to the contact support, the assembly member being provided with a first buffer surface and a second buffer surface, the first buffer surface being used to contact the armature, and the second buffer surface being used to contact the base.

[0011] As an optional solution of the armature assembly structure provided by the utility model, the assembly member comprises a bottom plate and two side plates respectively arranged at both ends of the bottom plate, and a clamping plate is connected to each side plate and spaced apart from the bottom plate.

[0012] The bottom plate and the two side plates surround to form a clamping space clamped with the contact support, the contact support is provided with a clamping cavity, and the clamping plate is clamped with the clamping cavity;

[0013] The bottom plate is clamped between the contact support and the armature and has the first buffer surface;

[0014] The side surface of the clamping plate away from the bottom plate is the second buffer surface.

[0015] As an optional scheme of the armature assembly structure provided by the utility model, the bottom plate is provided with a first clamping notch, the contact support is provided with a first clamping boss, and the first clamping boss is clamped with the first clamping notch;

[0016] And / or, the side plate is provided with a second clamping notch, the contact support is provided with a second clamping boss, and the second clamping boss is clamped with the second clamping notch.

[0017] As an optional scheme of the armature assembly structure provided by the utility model, the second clamping boss penetrates the second clamping notch, at least one end of the second clamping boss is connected with a hooking limiting part, and the hooking limiting part is stopped on one side of the side plate away from the clamping space.

[0018] As an optional scheme of the armature assembly structure provided by the utility model, the clamping plate comprises a limiting plate and a buffer plate, and the buffer plate is provided on one side of the limiting plate away from the bottom plate;

[0019] The clamping cavity comprises a first limiting groove and a second limiting groove in communication, the limiting plate is clamped in the first limiting groove, one side of the limiting plate away from the bottom plate is abutted against the groove wall of the first limiting groove, the buffer plate is clamped in the second limiting groove, and the side surface of the buffer plate away from the limiting plate is the second buffer surface.

[0020] As an optional scheme of the armature assembly structure provided by the utility model, the contact support comprises a first plate and a second plate arranged at intervals, and two supporting plates arranged at intervals are connected between the first plate and the second plate; the bottom plate is located on one side of the first plate away from the second plate, and the side plate is located on one side of the supporting plate;

[0021] The first plate, the second plate and the two supporting plates surround to form the first limiting groove;

[0022] The second plate is provided with the second limiting groove.

[0023] As optional scheme of the armature assembly structure provided by the utility model, the armature assembly structure further includes a fastening screw, a screw rod part of the fastening screw penetrates a cavity wall of the clamping cavity and is threadedly connected with the armature, and a stop head part of the fastening screw is located in the clamping cavity.

[0024] The clamping plate is abutted against one side of the stop head part away from the screw rod part.

[0025] The side plate at least partially covers a cavity opening of the clamping cavity, and the side plate is located on one side of the stop head part in a radial direction.

[0026] As optional scheme of the armature assembly structure provided by the utility model, the contact support is provided with a limiting boss on one side facing the bottom plate, and the bottom plate is provided with a limiting rib on both sides of the limiting boss.

[0027] As optional scheme of the armature assembly structure provided by the utility model, the contact support includes a clamping part and two clamping hook structures distributed at intervals.

[0028] The clamping part is clamped with the assembly part, the clamping hook structure includes a connecting arm and a clamping head provided on a first end of the connecting arm, and a second end of the connecting arm is connected to the clamping part.

[0029] The armature is located between the two clamping hook structures and is provided with a first side surface and a second side surface on both sides, the first side surface is in contact with the clamping part and the first buffer surface, and the clamping head is clamped on the second side surface.

[0030] On the other hand, a contactor is provided, which includes a base, a movable contact, an electromagnetic system and the armature assembly structure as described above, the contact support of the armature assembly structure is installed on the base, the movable contact is installed on the contact support, and the electromagnetic system is used for magnetically attracting the armature.

[0031] The utility model has the advantages of:

[0032] The utility model provides a armature assembly structure and the contactor containing this armature assembly structure, the contact support can reciprocate between the two positions of making the contactor open and close, when moving to the two limit positions corresponding to open and close, because the magnetic attraction of the yoke to the armature, the abutting of the contact support and the base, will produce the impact to the whole armature assembly structure, through setting up the assembly with first buffer surface and second buffer surface, in the process of being impacted, first buffer surface can bear part of impact force through the contact with the armature, and the second buffer surface can bear part of impact force through the contact with the base, and the better buffering effect is played between the contact support and the base, thereby improving the buffering protection effect to the contact support after assembly, reducing the problems such as the deformation and damage of the contact support. Moreover, because the assembly is clamped on the contact support, compared with the buffer gasket directly clamped between the contact support and the armature in the prior art, the installation stability of the assembly is obviously better, avoids the disengagement from the contact support, thereby stably and reliably buffering the protection effect to the contact support. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments of the utility model, and obviously, the following described drawings are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can be obtained according to the drawings without paying the creative labor.

[0034] Figure 1 It is the isometric view of the armature assembly structure provided by the embodiment of the utility model,

[0035] Figure 2 It is the exploded schematic view of the armature assembly structure provided by the embodiment of the utility model,

[0036] Figure 3 It is the first cross-sectional view of the armature assembly structure provided by the embodiment of the utility model,

[0037] Figure 4 It is the second cross-sectional view of the armature assembly structure provided by the embodiment of the utility model,

[0038] Figure 5 It is the connection schematic view of the contact support and the assembly provided by the embodiment of the utility model,

[0039] Figure 6 It is the cross-sectional view of the contact support and the assembly after connection provided by the embodiment of the utility model,

[0040] Figure 7 It is the structure schematic view of the assembly provided by the embodiment of the utility model,

[0041] Figure 8 is a structural schematic view of the contact support provided by the embodiment of the utility model;

[0042] Figure 9 is an exploded schematic view of the contact support and the assembly provided by the embodiment of the utility model.

[0043] In the figure:

[0044] 1, contact support; 2, armature; 3, assembly; 4, fastening screw;

[0045] 11, support body; 12, clamping portion; 13, clamping hook structure;

[0046] 120, clamping cavity; 121, first plate; 122, second plate; 123, support plate; 124, limiting boss;

[0047] 1201, first limiting groove; 1202, second limiting groove;

[0048] 1210, connecting hole; 1211, first clamping boss; 1212, second clamping boss; 1213, hooking limiting portion; 12131, first guide inclined surface;

[0049] 131, connecting arm; 132, clamping head; 1321, second guide inclined surface;

[0050] 21, first side surface; 22, second side surface;

[0051] 31, bottom plate; 32, side plate; 33, clamping plate; 30, clamping space;

[0052] 310, first buffering surface; 311, first clamping notch; 312, limiting rib;

[0053] 321, second clamping notch;

[0054] 331, limiting plate; 332, buffering plate; 3320, second buffering surface;

[0055] 41, screw portion; 42, stop head portion. DETAILED DESCRIPTION

[0056] The utility model will be further described in detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not limit the utility model. In addition, it needs to be explained that in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0057] In the description of the utility model, unless another definite provision and limitation, the term "link", "connect", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's interaction relationship.For the ordinary skill in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0058] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional feature between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0059] In the description of the embodiment, the terms "on", "under", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification of operation, and not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0060] The term "and / or" in the embodiment is only a description of the association relationship of the associated object, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist simultaneously and B exists alone.In addition, the character " / " in the utility model generally represents that the front and rear associated objects are in an "or" relationship.

[0061] In the embodiments of the utility model, the same reference signs represent the same parts, and for brevity, the detailed description of the same parts is omitted in different embodiments.

[0062] As Figure 1 , Figure 2 and Figure 3 As shown in the utility model provides a kind of armature assembly structure, including contact support 1, armature 2 and assembly 3, the armature assembly structure can reliably improve the buffering protection effect of contact support 1 after assembly, reduce the problems such as deformation, damage of contact support 1.

[0063] Further, referring to Figure 4 , the armature assembly structure further comprises a fastening screw 4 for connecting the contact support 1 and the armature 2.

[0064] Specifically, the contact support 1 is configured to be mounted on a base of the contactor; the armature 2 is connected to the contact support 1 and can drive the contact support 1 to move under the magnetic attraction of a magnetic yoke in the contactor; the assembly piece 3 is clamped to the contact support 1, and the assembly piece 3 is provided with a first buffer surface 310 and a second buffer surface 3320, the first buffer surface 310 is used to contact the armature 2, and the second buffer surface 3320 is used to contact the base.

[0065] The armature assembly structure provided by the embodiment of the application, the contact support 1 can reciprocate between two positions corresponding to opening and closing of the contactor, and when moving to the two limit positions corresponding to opening and closing, due to the magnetic attraction of the magnetic yoke to the armature 2 and the abutting of the contact support 1 and the base, an impact will be generated on the entire armature assembly structure. By providing the assembly piece 3 with the first buffer surface 310 and the second buffer surface 3320, during the impact, the first buffer surface 310 can bear part of the impact force through contact with the armature 2, thereby playing a good buffering role between the armature 2 and the contact support 1, and the second buffer surface 3320 can bear part of the impact force through contact with the base, thereby playing a good buffering role between the contact support 1 and the base. Therefore, the buffering and protection effect of the contact support 1 after assembly is improved, and problems such as deformation and damage of the contact support 1 are reduced.

[0066] Moreover, since the assembly piece 3 is clamped on the contact support 1, compared with the buffer gasket directly clamped between the contact support 1 and the armature 2 in the prior art, the installation stability of the assembly piece 3 is obviously better, and the assembly piece 3 is prevented from being separated from the contact support 1, thereby stably and reliably playing a buffering and protection role on the contact support 1.

[0067] As shown in Figure 2 , Figure 5 and Figure 7 , the assembly piece 3 comprises a bottom plate 31 and two side plates 32 respectively arranged at two ends of the bottom plate 31, and a clamping plate 33 spaced apart from the bottom plate 31 is connected to each side plate 32. The bottom plate 31 and the two side plates 32 surround to form a clamping space 30 clamped with the contact support 1, and the clamping space 30 is exemplarily in a U shape. In combination with Figure 8 , the contact support 1 is provided with a clamping cavity 120, and the clamping plate 33 is clamped with the clamping cavity 120. During assembly, the assembly piece 3 is clamped into the bottom of the contact support 1, the bottom of the contact support 1 is clamped into the clamping space 30, and the clamping plate 33 is clamped into the clamping cavity 120 on the contact support 1, so as to complete the clamping of the assembly piece 3 and the contact support 1.

[0068] The bottom plate 31 is clamped between the contact support 1 and the armature 2, and has a first buffer surface 310 which plays a buffering role between the contact support 1 and the armature 2 when the assembly structure is impacted. The side of the clamping plate 33 facing away from the bottom plate 31 is the aforementioned second buffer surface 3320, which plays a buffering role when the contact support 1 abuts against the base.

[0069] In this embodiment, the bottom plate 31, the side plates 32 and the clamping plate 33 are integrally formed, and are made of plastic, for example, which has certain elastic properties. The two side plates 32 can elastically deform relative to the bottom plate 31, so that the clamping plate 33 can be smoothly clamped into the clamping cavity 120.

[0070] Referring to Figure 6 , the contact support 1 comprises a support body 11 and a clamping portion 12 connected to each other. The support body 11 is provided with a mounting cavity for mounting a movable contact. The clamping portion 12 is used for clamping with the assembly 3. The clamping cavity 120 is provided on the clamping portion 12.

[0071] As shown in Figure 5 and Figure 9 , the bottom plate 31 is provided with a first clamping notch 311. The clamping portion 12 of the contact support 1 is provided with a first clamping boss 1211 on the side facing away from the support body 11. The first clamping boss 1211 is clamped with the first clamping notch 311, which can position the mounting position of the bottom plate 31 relative to the contact support 1, and improve the stability of the entire assembly 3 after installation.

[0072] Further, the side plate 32 is provided with a second clamping notch 321. The clamping portion 12 of the contact support 1 is provided with a second clamping boss 1212. The second clamping boss 1212 is clamped with the second clamping notch 321, which can position the mounting position of the side plate 32 relative to the contact support 1, and help improve the stability of the assembly 3 after installation, and is not easy to fall off. For example, the first clamping notch 311 and the second clamping notch 321 on the two side plates 32 are in communication, and the first clamping boss 1211 and the second clamping boss 1212 are connected, which further improves the installation stability of the assembly 3 through clamping with the two clamping notches.

[0073] Referring to Figure 5 and Figure 9 , the second clamping boss 1212 penetrates the second clamping notch 321, and at least one end of the second clamping boss 1212 is connected with a hooking limiting portion 1213. The hooking limiting portion 1213 is stopped on the side of the side plate 32 facing away from the clamping space 30, which is used to prevent the side plate 32 from moving away from the contact support 1, so as to avoid the clamping plate 33 from falling out of the clamping cavity 120.

[0074] Exemplarily, the two ends of the second clamping boss 1212 are connected with hooking and limiting parts 1213, and the two hooking and limiting parts 1213 and the second clamping boss 1212 substantially form a T-shaped structure. When assembling the assembly 3, the assembly 3 is sleeved on the clamping part 12 of the contact support 1, the side plate 32 is pushed, the hooking and limiting parts 1213 slide along the inner wall of the second clamping gap 321 and pass out, and the hooking and limiting of the hooking and limiting parts 1213 and the side plate 32 is completed.

[0075] Further, the hooking and limiting parts 1213 are provided with first guide inclined surfaces 12131, which can slide along the edge of the second clamping gap 321 when assembling the assembly 3, so that the hooking and limiting parts 1213 more smoothly enter the second clamping gap 321, and the assembly difficulty is reduced.

[0076] As shown in Figure 4 , Figure 7 and Figure 8 , the clamping plate 33 comprises a limiting plate 331 and a buffer plate 332, and the buffer plate 332 is protruded on the side of the limiting plate 331 away from the bottom plate 31. The clamping cavity 120 comprises a first limiting groove 1201 and a second limiting groove 1202 connected in communication, the limiting plate 331 is clamped in the first limiting groove 1201, and the side of the limiting plate 331 away from the bottom plate 31 abuts against the groove wall of the first limiting groove 1201, and the buffer plate 332 is clamped in the second limiting groove 1202, and the side away from the limiting plate 331 is the second buffer surface 3320. That is, the buffer plate 332 and the limiting plate 331 form a first stepped structure, the groove wall of the first limiting groove 1201 and the groove wall of the second limiting groove 1202 form a second stepped structure, and the first stepped structure and the second stepped structure are embedded, which can prevent the clamping plate 33 from moving upward (refer to the orientation in Figure 4 ) and separating from the clamping cavity 120.

[0077] Specifically, as shown in Figure 8 , the clamping part 12 of the contact support 1 comprises a first plate 121 and a second plate 122 arranged at intervals, and two support plates 123 arranged at intervals are connected between the first plate 121 and the second plate 122. The first plate 121 has the first clamping boss 1211 and the second clamping boss 1212, the bottom plate 31 is located on the side of the first plate 121 away from the second plate 122, and the side plate 32 is located on the side of the support plate 123. Among them, the first plate 121, the second plate 122 and the two support plates 123 surround to form the first limiting groove 1201; the second plate 122 is provided with the second limiting groove 1202, thereby forming the clamping cavity 120 clamped with the clamping plate 33, which is simple in structure and convenient to manufacture.

[0078] Combined with Figure 3 and Figure 4The screw rod part 41 of the fastening screw 4 penetrates the cavity wall of the clamping cavity 120 and is threadedly connected with the armature 2. Specifically, the first plate 121 is provided with a connecting hole 1210, the armature 2 is provided with a threaded hole, the screw rod part 41 of the fastening screw 4 penetrates the connecting hole 1210 and can be threadedly screwed into the threaded hole of the armature 2, and the stop head part 42 of the fastening screw 4 is located in the first limiting groove 1201 of the clamping cavity 120. The limiting plate 331 of the clamping plate 33 abuts against one side of the stop head part 42 away from the screw rod part 41, so as to prevent the fastening screw 4 from being pulled out upward and prevent the fastening screw 4 from loosening. The side plate 32 at least partially covers the cavity opening of the clamping cavity 120 and is located at one side of the stop head part 42 in the radial direction, so as to limit the radial movement of the fastening screw 4 to a certain extent and improve the installation stability of the fastening screw 4.

[0079] It can be understood that the size of the second limiting groove 1202 in the present application can accommodate the stop head part 42 of the fastening screw 4 to pass through, so that the stop head part 42 can smoothly enter the first limiting groove 1201.

[0080] As shown in Figure 6 , Figure 7 and Figure 9 , the clamping part 12 of the contact support 1 is provided with a limiting boss 124 on the side facing the bottom plate 31, and the bottom plate 31 is provided with limiting convex ribs 312 on both sides of the limiting boss 124. The limiting boss 124 and the limiting convex ribs 312 on both sides thereof cooperate with each other, further improving the installation stability of the assembly 3 on the contact support 1, better limiting the fastening screw 4, preventing the fastening screw 4 from loosening, and further improving the firmness of the armature 2 after assembly, avoiding loosening of the connection between the armature 2 and the contact support 1.

[0081] As shown in Figure 3 and Figure 8 , the clamping part 12 of the contact support 1 is provided with two spaced-apart clamping hook structures 13 on the side away from the support body 11. The clamping hook structure 13 comprises a connecting arm 131 and a clamping head 132 protruding from the first end of the connecting arm 131, and the second end of the connecting arm 131 is connected to the clamping part 12. The armature 2 is located in the insertion space between the two clamping hook structures 13, and the two sides of the armature 2 are respectively provided with the first side surface 21 and the second side surface 22, the first side surface 21 contacts the clamping part 12 and the first buffer surface 310, and the clamping head 132 hooks the second side surface 22. By providing the clamping hook structure 13 on the contact support 1, the installation firmness between the armature 2 and the contact support 1 can be further improved, and the loosening of the connection between the armature 2 and the contact support 1 can be avoided.

[0082] Further, referring to Figure 8 , the clamping head 132 is provided with a second guide inclined surface 1321, and the armature 2 can slide along the second guide inclined surface 1321 to enter between the clamping part 12 and the clamping head 132, so that the installation of the armature 2 is more convenient.

[0083] The assembling process of the armature assembling structure provided by the embodiment is approximately as follows:

[0084] S1, the fastening screw 4 is inserted into the connecting hole 1210 on the contact support 1;

[0085] S2, the assembling piece 3 is clamped on the clamping part 12 of the contact support 1, the first clamping notch 311 on the bottom plate 31 of the assembling piece 3 is clamped with the first clamping boss 1211, and the adjacent limiting convex rib 312 on the bottom plate 31 is stopped on both sides of the limiting boss 124; at this time, due to the existence of the hooking limiting part 1213, the two side plates 32 of the assembling piece 3 are stretched, and at this time, they are inclined in the direction of moving away from each other;

[0086] S3, the armature 2 is placed between the two clamping hook structures 13, and the fastening screw 4 is screwed into the armature 2;

[0087] S4, after the fastening screw 4 is screwed in place, an external force is applied to the side plate 32 and the clamping plate 33, so that the hooking limiting part 1213 passes through the second clamping notch 321 to hook the side plate 32, and the two clamping plates 33 enter the clamping cavity 120 of the contact support 1.

[0088] The embodiment also provides a contactor, which comprises a base, a movable contact, an electromagnetic system and the armature assembling structure as described above, the contact support 1 of the armature assembling structure is movably installed on the base, the movable contact is installed on the contact support 1, and the electromagnetic system comprises a coil and a magnetic yoke penetrating the coil, after the coil is electrified, the magnetic yoke can magnetically attract the armature 2, so that the armature 2 drives the contact support 1 and the movable contact thereon to move. The cooperation of the above-mentioned base, movable contact, electromagnetic system, contact support 1 and armature 2 is a mature technology, and will not be repeated here.

[0089] Obviously, the above-mentioned embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. An armature assembly structure, characterized in that, include: Contact support (1) is configured to be mounted on the base of the contactor; An armature (2) is connected to the contact support (1); Assembly (3) is snapped into contact support (1). Assembly (3) is provided with a first buffer surface (310) and a second buffer surface (3320). The first buffer surface (310) is used to contact the armature (2), and the second buffer surface (3320) is used to contact the base.

2. The armature assembly structure according to claim 1, characterized in that, The assembly (3) includes a base plate (31) and two side plates (32) disposed at both ends of the base plate (31). The side plates (32) are connected to a clamping plate (33) that is spaced apart from the base plate (31). The base plate (31) and the two side plates (32) surround and form a snap-fit ​​space (30) that engages with the contact support (1). The contact support (1) is provided with a snap-fit ​​cavity (120), and the snap-fit ​​plate (33) engages with the snap-fit ​​cavity (120). The base plate (31) is sandwiched between the contact support (1) and the armature (2) and has the first buffer surface (310); the side of the clamping plate (33) facing away from the base plate (31) is the second buffer surface (3320).

3. The armature assembly structure according to claim 2, characterized in that, The base plate (31) is provided with a first snap-fit ​​notch (311), and the contact support (1) is provided with a first snap-fit ​​boss (1211), which engages with the first snap-fit ​​notch (311). And / or, the side plate (32) is provided with a second snap-fit ​​notch (321), and the contact support (1) is provided with a second snap-fit ​​boss (1212), which engages with the second snap-fit ​​notch (321).

4. The armature assembly structure according to claim 3, characterized in that, The second snap-fit ​​protrusion (1212) penetrates the second snap-fit ​​notch (321), and at least one end of the second snap-fit ​​protrusion (1212) is connected to a hook-and-lock limit part (1213), which stops on the side of the side plate (32) facing away from the snap-fit ​​space (30).

5. The armature assembly structure according to claim 2, characterized in that, The card plate (33) includes a limiting plate (331) and a buffer plate (332), wherein the buffer plate (332) protrudes from the side of the limiting plate (331) facing away from the bottom plate (31); The snap-fit ​​cavity (120) includes a first limiting groove (1201) and a second limiting groove (1202) that are connected to each other. The limiting plate (331) is snapped in the first limiting groove (1201), and the side of the limiting plate (331) facing away from the bottom plate (31) abuts against the groove wall of the first limiting groove (1201). The buffer plate (332) is snapped in the second limiting groove (1202), and the side facing away from the limiting plate (331) is the second buffer surface (3320).

6. The armature assembly structure according to claim 5, characterized in that, The contact support (1) includes a first plate (121) and a second plate (122) spaced apart, and two support plates (123) spaced apart are connected between the first plate (121) and the second plate (122); the bottom plate (31) is located on the side of the first plate (121) facing away from the second plate (122), and the side plate (32) is located on one side of the support plate (123); The first plate (121), the second plate (122) and the two support plates (123) are arranged to form the first limiting groove (1201); the second plate (122) is provided with the second limiting groove (1202).

7. The armature assembly structure according to any one of claims 2-6, characterized in that, The armature assembly structure also includes a fastening screw (4), the screw portion (41) of the fastening screw (4) penetrates the cavity wall of the snap-fit ​​cavity (120) and is threadedly connected to the armature (2), and the stop head (42) of the fastening screw (4) is located inside the snap-fit ​​cavity (120). The card plate (33) abuts against the side of the stop head (42) facing away from the screw part (41); The side plate (32) at least partially covers the opening of the snap-fit ​​cavity (120), and the side plate (32) is located on one side of the stop head (42) in the radial direction.

8. The armature assembly structure according to any one of claims 2-6, characterized in that, The contact support (1) has a limiting boss (124) protruding on one side facing the base plate (31), and the base plate (31) has limiting ribs (312) protruding on both sides of the limiting boss (124).

9. The armature assembly structure according to any one of claims 1-6, characterized in that, The contact support (1) includes a mounting part (12) and two spaced hook structures (13); The latching part (12) is latched with the assembly (3); the latching structure (13) includes a connecting arm (131) and a latching head (132) protruding from the first end of the connecting arm (131), and the second end of the connecting arm (131) is connected to the latching part (12); The armature (2) is located between the two hook structures (13), and has a first side (21) and a second side (22) on both sides. The first side (21) is in contact with the latching part (12) and the first buffer surface (310), and the latch head (132) is hooked onto the second side (22).

10. A contactor, characterized in that, The armature assembly includes a base, a moving contact, an electromagnetic system, and an armature assembly structure as described in any one of claims 1-9, wherein a contact support (1) of the armature assembly structure is mounted on the base, the moving contact is mounted on the contact support (1), and the electromagnetic system is used to magnetically attract the armature (2).

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