Contactor contact support assembly and contactor

Abstract

The utility model belongs to the technical field of low-voltage electric appliances, and discloses a contactor contact support assembly and a contactor, the contactor contact support assembly comprises a contact support, a connecting piece, an armature and a fastener, the contact support is configured to be movably installed in a shell of the contactor, and the contact support is provided with an assembling groove; the connecting piece is inserted into the assembling groove; the armature is in a flat plate shape and is overlapped with the contact support. And the fastener penetrates through the armature and is in threaded connection with the connecting piece, so that the armature is firmly mounted on the contact support. The flat-plate-shaped armature does not need to be subjected to an n-shaped forming process, so that the production steps are simplified; compared with an n-shaped armature, the flat-plate-shaped armature has no middle protruding part, so that the material consumption of the armature can be reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to a contactor contact support component and a contactor. Background Art

[0002] The contact support assembly in some contactors includes a contact support for installing a moving contact and an armature installed on the contact support. When the contactor is closed, the electromagnetic coil is energized to drive the armature to move downward, and the armature drives the contact support to move downward, so that the moving contact and the static contact are closed; when the contactor is disconnected, the electromagnetic coil is de-energized, and the reaction spring pushes the contact support to move upward, and then the contact support drives the armature and the moving contact to move upward, thereby disconnecting the moving contact and the static contact.

[0003] In the prior art, small contactors are generally made of thermoplastic plastics, which can be directly threaded, while large contactors are generally made of thermosetting materials. Since threaded holes cannot be opened in thermosetting materials, the armature is usually mounted on the contact support by means of a clamping method. Specifically, the armature is made into a structure with a cross-section of the "X" shape, and a clamping hole is provided at the protruding part of the "X"-shaped armature, and an elastic sheet is clamped in the clamping hole to realize the installation of the armature on the contact support.

[0004] The above scheme has the following defects: since the armature needs to be formed into an "J" shape, the protruding part in the middle will undoubtedly increase the material consumption of the more expensive armature, which consumes more materials during mass production, resulting in higher production costs. In addition, the production line needs to add the process of forming into an "J" shape, making the production process more complicated.

[0005] Therefore, there is an urgent need for a contactor contact support assembly and a contactor to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a contactor contact support assembly and a contactor, which can reduce the material consumption of the armature, reduce the production cost, and are more convenient to install and are stable and reliable after installation.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] In a first aspect, a contactor contact support assembly is provided, comprising:

[0009] A contact support is configured to be movably mounted in a housing of the contactor, and a mounting groove is provided on the contact support;

[0010] A connecting piece, inserted into the assembly groove;

[0011] An armature, which is in the shape of a plate and overlaps with the contact support;

[0012] A fastener penetrates through the armature and is threadedly connected to the connecting member.

[0013] As a preferred solution of the contactor contact support assembly provided by the utility model, the connecting member includes a spring sheet, the spring sheet can be elastically deformed along the moving direction of the contact support, and the fastener is threadedly connected to the spring sheet.

[0014] As a preferred solution of the contactor contact support assembly provided by the utility model, the spring sheet includes a deformation portion and clamping arms respectively arranged at both ends of the deformation portion;

[0015] The assembly groove comprises two first groove sections arranged opposite to each other and a second groove section connecting the two first groove sections, wherein the second groove section extends in a direction away from the armature;

[0016] The two clamping arms are clamped in the two first slot sections respectively, the deformation portion is located in the second slot section and protrudes in a direction away from the armature relative to the clamping arms, and the fastener is screwed to the deformation portion.

[0017] As a preferred solution of the contactor contact support assembly provided by the utility model, a first protrusion is protruded on the side of the deformation portion facing away from the armature, and a threaded hole for penetrating the fastener is provided through the deformation portion and the first protrusion.

[0018] As a preferred solution of the contactor contact support assembly provided by the utility model, the side wall of the assembly groove is provided with a first connecting hole for passing the fastener, and the assembly groove has a bottom wall that can stop the spring leaf in the insertion direction of the spring leaf, and when the spring leaf abuts against the bottom wall, the threaded hole is aligned with the first connecting hole.

[0019] As a preferred solution of the contactor contact support assembly provided by the utility model, the assembly grooves are recessed on two opposite sides of the contact support, and the spring leaves and the fasteners are arranged in one-to-one correspondence with the assembly grooves.

[0020] As a preferred solution of the contactor contact support assembly provided by the utility model, the material of the connecting piece is metal.

[0021] As a preferred solution of the contactor contact support assembly provided by the utility model, the connecting member includes a connecting block clamped in the assembly groove, one side of the connecting block along the first direction is provided with one or more retaining buckles, and a clamping hole communicating with the assembly groove is provided on the contact support, and the retaining buckle is engaged with the clamping hole;

[0022] The first direction is the insertion direction of the connector.

[0023] As a preferred solution of the contactor contact support assembly provided by the utility model, the anti-retraction buckle includes a cantilever and a hook, the cantilever is connected to the connecting block, the hook is convexly arranged at one end of the cantilever away from the connecting block, the cantilever is used to elastically deform when the hook slides along the inner wall of the clamping hole, and the hook is hooked on the edge of the clamping hole after the cantilever recovers its deformation;

[0024] The contact support is concavely provided with a hidden groove connected with the clamping hole, and the clamping hook is located in the hidden groove.

[0025] As a preferred solution of the contactor contact support assembly provided by the utility model, the connecting block is provided with convex edges on both opposite sides along the second direction, and the two opposite inner walls of the assembly groove are provided with limiting grooves, and the convex edges can be inserted into the limiting grooves along the first direction;

[0026] The second direction is perpendicular to the first direction.

[0027] As a preferred solution of the contactor contact support assembly provided by the utility model, the material of the connecting piece is thermoplastic plastic.

[0028] As a preferred solution of the contactor contact support assembly provided by the utility model, at least one positioning groove is provided on opposite sides of the armature, and a positioning column is provided on the contact support corresponding to each positioning groove, and the positioning column is clamped in the corresponding positioning groove.

[0029] In a second aspect, a contactor is provided, comprising a housing, wherein a moving contact, a stationary contact, an electromagnetic coil, a reaction force spring and the contactor contact support assembly as described above are arranged in the housing;

[0030] When the electromagnetic coil is energized, the armature is magnetically attracted to drive the contact support to move, and the moving contact is installed on the contact support to contact the static contact under the drive of the contact support; when the electromagnetic coil is de-energized, the contact support can move under the elastic force of the reaction spring, and the moving contact is separated from the static contact under the drive of the contact support.

[0031] Beneficial effects of the utility model:

[0032] The utility model provides a contact support assembly of a contactor and a contactor including the contact support assembly. A connector is inserted into an assembly groove of the contact support, and an armature is stacked on the contact support. A fastener is used to penetrate the armature and is threadedly connected to the connector, so that the armature and the contact support can be assembled, and the armature and the contact support can be firmly installed. Since a connector that can be threaded is used, even if a thermosetting contact support that cannot be screwed is used, the armature and the contact support can be threadedly fastened. Moreover, since a threaded connection is used, the armature does not need to be set as an "I"-shaped structure to adapt to the installation on the contact support. A flat armature can be used, and there is no need to perform an "I"-shaped forming process, thereby simplifying the production steps. Compared with an "I"-shaped armature, the flat armature does not have a protruding part in the middle, so the material consumption of the armature can be reduced, thereby reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is an axonometric diagram of a contactor contact support assembly provided in the first embodiment of the utility model;

[0034] Figure 2 It is an exploded schematic diagram of a contactor contact support assembly provided in Embodiment 1 of the present utility model;

[0035] Figure 3 It is a plan view of the contactor contact support assembly provided by the first embodiment of the utility model;

[0036] Figure 4 It is a schematic diagram of a connector of a contactor contact support assembly provided in Embodiment 1 of the present utility model;

[0037] Figure 5 It is a schematic diagram of the contact support provided by the first embodiment of the utility model;

[0038] Figure 6 This is a first view of the contactor contact support assembly provided by the second embodiment of the utility model;

[0039] Figure 7 It is an exploded schematic diagram of a contactor contact support assembly provided in Embodiment 2 of the present utility model;

[0040] Figure 8 It is a schematic diagram of a connector of a contactor contact support assembly provided in Embodiment 2 of the present utility model;

[0041] Fig. 9 This is a second view of the contactor contact support assembly provided in the second embodiment of the present utility model.

[0042] In the figure:

[0043] 1. Contact support; 2. Connector; 3. Armature; 4. Fastener;

[0044] 11. Assembly groove; 12. First connection hole; 13. Material reduction groove; 14. Second protrusion; 15. Clamping hole; 16. Concealed groove; 17. Positioning column; 18. Mounting column;

[0045] 111, first slot section; 112, second slot section; 113, third slot section; 114, bottom wall; 115, guide slope; 116, limit slot;

[0046] 21. spring; 22. first protrusion; 23. threaded hole; 24. connecting block; 25. retaining buckle; 26. convex edge;

[0047] 211, deformation portion; 212, clamping arm;

[0048] 241, third connecting hole; 242, material reduction hole;

[0049] 251, cantilever; 252, hook;

[0050] 31. Second connecting hole; 32. Positioning groove; 33. Arc groove; 34. Corner cutting. DETAILED DESCRIPTION

[0051] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0052] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0054] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0055] Embodiment 1

[0056] like Figure 1 , Figure 2 as well as Figure 3 As shown, this embodiment provides a contactor contact support assembly, which is applied to a contactor. The contactor contact support assembly includes a contact support 1, a connecting piece 2, an armature 3 and a fastener 4.

[0057] The contact support 1 is movably mounted in the housing of the contactor, and a mounting groove 11 is provided on the contact support 1; the connector 2 is inserted into the mounting groove 11. The armature 3 is in the shape of a flat plate and is stacked with the contact support 1, specifically stacked on one side of the contact support 1 along its moving direction, and the fastener 4 penetrates the armature 3 and is screwed to the connector 2. The contact support 1 of a large contactor is generally made of thermosetting material, and the thermosetting material cannot be provided with a threaded hole 23. In this embodiment, the threaded connection is achieved by providing the connector 2.

[0058] Exemplarily, the fastener 4 may be a screw.

[0059] When installing the armature 3, the connector 2 is inserted into the assembly groove 11 of the contact support 1, and the armature 3 is stacked on the contact support 1. The fastener 4 is used to penetrate the armature 3 and is threadedly connected with the connector 2, so that the armature 3 and the contact support 1 can be assembled, which can ensure that the armature 3 and the contact support 1 are firmly installed. After the contactor contact support assembly is installed in the housing of the contactor, when the electromagnetic coil is energized, the magnetic armature 3 can be used to drive the contact support 1 to move, and the contact support 1 can then drive the moving contact installed thereon to move, so that the moving contact contacts the static contact; when the electromagnetic coil is de-energized, the contact support 1 is pushed under the action of the reaction spring to drive the moving contact to move in the opposite direction and separate from the static contact.

[0060] Since the connecting piece 2 capable of threaded connection is used, even if a thermosetting contact support 1 that cannot be screwed is used, the armature 3 can be threadedly fastened to the contact support 1. Moreover, since the threaded connection is used, the armature 3 does not need to be set as an "X"-shaped structure to adapt to the installation on the contact support 1, and a flat armature 3 can be used, and there is no need to perform an "X"-shaped forming process, thereby simplifying the production steps; compared with the "X"-shaped armature, the flat armature 3 does not have a protruding part in the middle, so the material consumption of the armature 3 can be reduced, thereby reducing the production cost.

[0061] In this embodiment, the assembly groove 11 extends along the width direction of the contact support 1. For the convenience of description, the insertion direction of the connector 2 is defined as the first direction, and the first direction is also the extension direction of the assembly groove 11; the length direction of the contact support 1 is defined as the second direction, and a plurality of installation cavities are arranged on the contact support 1 along the second direction, and each installation cavity is used to install a moving contact; the moving direction of the contact support 1 is defined as the third direction, and the armature 3 is stacked on one side of the contact support 1 along the third direction. The first direction, the second direction and the third direction are perpendicular to each other.

[0062] When the armature 3 and the electromagnetic coil are attracted, and when the contactor is impacted, the armature 3 and the fastener 4 will vibrate due to the impact, and the vibration will cause the screw connection between the fastener 4 and the connecting member 2 to loosen, thereby causing the armature 3 to loosen. Figure 3 and Figure 4 The connector 2 includes a spring 21, which can be elastically deformed along the moving direction of the contact support 1 (i.e., the third direction), and the fastener 4 is screwed to the spring 21. When subjected to an impact load in the third direction, the spring 21 is adaptively elastically deformed under the impact force transmitted by the fastener 4, plays a buffering role, reduces the impact on the screw, ensures that the screw connection between the fastener 4 and the connector 2 is stable and not loose, and improves the life of the mechanical connection.

[0063] Specifically, see Figure 3 and Figure 4 The spring leaf 21 includes a deformation portion 211 and clamping arms 212 disposed at both ends of the deformation portion 211. Figure 5 The assembly groove 11 includes two first groove sections 111 arranged opposite to each other and a second groove section 112 connecting the two first groove sections 111. The second groove section 112 extends in a direction away from the armature 3. Two clamping arms 212 are respectively clamped in the two first groove sections 111, so that the entire spring leaf 21 is firmly clamped in the assembly groove 11. The deformation portion 211 is located in the second groove section 112 and protrudes relative to the clamping arms 212 in a direction away from the armature 3, that is, see Figure 3In the middle position, the spring leaf 21 is a structure with a high middle and low ends, so that the middle deformation portion 211 has elastic deformation ability, and the fastener 4 is screwed on the deformation portion 211, so that the deformation portion 211 can buffer the impact force on the fastener 4.

[0064] The contact support 1 has a larger installation space on the side of the connecting member 2 facing away from the armature 3, so the second slot section 112 is configured to extend away from the armature 3, and the deformation portion 211 is protruded away from the armature 3 during installation.

[0065] The two ends of the deformation part 211 are arranged at an obtuse angle with the clamping arm 212 and are bent and connected, so as to facilitate elastic deformation of the deformation part 211. Furthermore, the spring leaf 21 is bent and formed as a whole to ensure sufficient strength.

[0066] The material of the reed 21 can be metal, for example, can be made of spring steel. The spring steel material has certain strength and elastic deformation ability, and can play a role in buffering load.

[0067] Further, see Figure 5 The second slot segment 112 is connected to a third slot segment 113 at one end facing away from the armature 3. The third slot segment 113 extends along the third direction. In this embodiment, see Figure 2 In the middle position, the assembly groove 11 has an upper side wall, on which a first connecting hole 12 is formed, and the armature 3 is provided with a second connecting hole 31, and the fastener 4 passes through the second connecting hole 31 and the first connecting hole 12 in sequence, and is screwed to the deformed portion 211 of the spring leaf 21. Figure 3 , the portion of the fastener 4 that passes through the deformed portion 211 extends into the third slot section 113. That is, the third slot section 113 plays a role in giving way to the fastener 4, preventing the fastener 4 from interfering with the slot wall of the assembly slot 11. In this embodiment, see Figure 5 The entire assembly groove 11 is roughly T-shaped.

[0068] See also Figure 2 A guiding inclined surface 115 is provided at the notch of the assembly groove 11 so that the notch position of the assembly groove 11 forms a trumpet-shaped expansion, which facilitates the connector 2 to enter therein.

[0069] Optionally, a first protrusion 22 is convexly provided on the side of the deformation portion 211 facing away from the armature 3, and a threaded hole 23 for inserting the fastener 4 is provided through the deformation portion 211 and the first protrusion 22. That is, the threaded hole 23 penetrates the deformation portion 211 and the first protrusion 22, so that the threaded hole 23 has a sufficient length, thereby ensuring that the threaded engagement length between the fastener 4 and the threaded hole 23 is sufficient, thereby improving the screw connection strength between the fastener 4 and the connector 2. At the same time, the provision of the first protrusion 22 can also increase the strength of the entire connector 2.

[0070] Furthermore, the first protrusion 22 and the reed 21 are integrally formed, for example, by stamping a steel sheet.

[0071] See also Figure 2 The contact support 1 has mounting grooves 11 on both sides opposite to each other along the first direction, and the spring 21 and the fastener 4 are arranged in one-to-one correspondence with the mounting grooves 11, thereby improving the stability of the armature 3 after installation. Figure 2 In the middle position, a material reduction groove 13 is concavely provided on the upper side of the contact support 1, and a second protrusion 14 is convexly provided on the outer side of the upper side wall of the assembly groove 11, and the second protrusion 14 is located in the material reduction groove 13. The first connecting hole 12 passes through the second protrusion 14, so that the length of the second connecting hole 31 is lengthened, and the stability of the fastener 4 when it is inserted into the first connecting hole 12 is improved.

[0072] The provision of the material reduction groove 13 can reduce the amount of material used in manufacturing the contact support 1 while ensuring that the contact support 1 has sufficient strength and hardness. The material reduction groove 13 can also be distributed at other locations on the contact support 1.

[0073] like Figure 3 As shown, the assembly groove 11 has a bottom wall 114 that can stop the spring leaf 21 in the insertion direction (i.e., the first direction) of the spring leaf 21. When the spring leaf 21 abuts against the bottom wall 114, the threaded hole 23 is aligned with the first connecting hole 12, which facilitates the positioning of the installation position of the connector 2 on the contact support 1 and realizes rapid assembly.

[0074] Further, see Figure 1 and Figure 2 , two positioning grooves 32 are provided on opposite sides of the armature 3 along the second direction, and a positioning column 17 is provided on the contact support 1 corresponding to each positioning groove 32, that is, four positioning columns 17 are provided, and the four positioning columns 17 are correspondingly clamped in the four positioning grooves 32 to locate the installation position of the armature 3 on the contact support 1. When the positioning column 17 is engaged with the positioning groove 32, the first connection hole 12 on the armature 3 is just aligned with the second connection hole 31 on the contact support 1, thereby realizing the fast penetration connection of the fastener 4. In other embodiments, the number of the positioning columns 17 and the positioning grooves 32 can be adaptively increased or decreased, and their number is not limited here.

[0075] See also Figure 2 The four corners of the armature 3 are provided with arc grooves 33, and the groove walls of the arc grooves 33 are connected to the outer wall of the armature 3 by arc transition. Such a setting avoids the sharp parts at the four corners of the armature 3 and causes stress concentration, and prevents the four corners of the armature 3 from breaking due to impact when the armature 3 is attached to the electromagnetic coil. Alternatively, the four corners of the armature 3 can also be provided with corner cuts, which can also avoid stress concentration.

[0076] This embodiment further provides a contactor, including a housing, in which a moving contact, a stationary contact, an electromagnetic coil, a reaction force spring, and the contactor contact support assembly as described above are arranged.

[0077] When the electromagnetic coil is energized, the contact support 1 is driven to move by the magnetic attraction armature 3, and the moving contact is installed on the contact support 1 so as to contact the static contact under the drive of the contact support 1. A spring mounting hole is provided on the base of the housing, and the reaction spring is located between the spring mounting hole and the contact support 1, and its bottom end is penetrated in the spring mounting hole, which is used to release the elastic force after the electromagnetic coil is de-energized, so that the contact support 1 drives the moving contact to move and reset under the action of the elastic force, and separate from the static contact. The advantages of the contactor with the above-mentioned contact support 1 assembly are as described above, and will not be repeated here.

[0078] See Figure 1 and Figure 2 , two mounting posts 18 are arranged at intervals along the second direction on the contact support 1, and the two mounting posts 18 are arranged on both sides of the armature 3, and are used to sleeve the reaction spring. In this embodiment, the reaction spring is installed by setting a spring mounting hole on the base of the housing, on the one hand, it ensures that the reaction spring is stably extended and firmly installed; on the other hand, when the armature 3 is attracted, the contact support 1 moves downward to compress the reaction spring, and the spring mounting hole can prevent the protruding mounting posts 18 on the contact support 1 from interfering with the base of the housing.

[0079] Of course, in other embodiments, a protrusion for sleeve-mounting the bottom end of the reaction spring may also be provided on the base of the shell.

[0080] Embodiment 2

[0081] Based on the same inventive concept as in Example 1, Figure 6 and Figure 7 As shown, this embodiment provides a contactor contact support assembly and a contactor, which differs from the first embodiment in that:

[0082] See also Figure 6 , Figure 7 as well as Figure 8 The connector 2 includes a connecting block 24 that is clamped in the assembly groove 11. One side of the connecting block 24 along the first direction is provided with one or more retaining buckles 25. The contact support 1 is provided with a clamping hole 15 that is connected to the assembly groove 11. The retaining buckle 25 is engaged with the clamping hole 15. The connecting block 24 is inserted into the assembly groove 11 along the first direction until the retaining buckle 25 is completely engaged with the clamping hole 15, and the connecting member 2 is installed in place. Moreover, the cooperation between the retaining buckle 25 and the clamping hole 15 can prevent the connecting member 2 from slipping out of the assembly groove 11 along the first direction, thereby ensuring the stability of the connecting member 2 after installation.

[0083] Specifically in this embodiment, see Figure 8Two anti-retraction buckles 25 are symmetrically arranged on one side of the connection block 24. After the two anti-retraction buckles 25 pass through the clamping hole 15, they are hooked on the two opposite edges of the clamping hole 15, which can increase the stability after the clamping and make the connection piece 2 and the contact support 1 bear a balanced force. In other embodiments, one or more anti-retraction buckles 25 can be provided, which is not specifically limited here.

[0084] See Figure 8 The anti-retraction buckle 25 includes a cantilever 251 and a hook 252. The cantilever 251 is connected to the connecting block 24. The hook 252 is protruding from one end of the cantilever 251 away from the connecting block 24. The cantilever 251 is used to elastically deform when the hook 252 slides along the inner wall of the clamping hole 15, so that the hook 252 can smoothly pass through the clamping hole 15. After the hook 252 passes through the clamping hole 15, the cantilever 251 restores its deformation, so that the hook 252 hooks on the edge of the clamping hole 15, completing the engagement between the anti-retraction buckle 25 and the clamping hole 15. Due to the hooking effect of the hook 252 and the edge of the clamping hole 15, the connector 2 can be effectively prevented from falling out of the assembly groove 11 along the first direction.

[0085] like Fig. 9 As shown, the contact support 1 is provided with a concealed groove 16 on the side of the clamping hole 15 facing away from the assembly groove 11, and the concealed groove 16 is connected to the clamping hole 15. The hook 252 is located in the concealed groove 16 and is hidden, so as to avoid the hook 252 protruding relative to the outer surface of the contact support 1, and to prevent the hook 252 from moving to the inside of the clamping hole 15 due to accidental contact during transportation, assembly, etc., thereby preventing the hook 252 from slipping out of the clamping hole 15 due to accidental contact.

[0086] See also Figure 6 , Figure 7 as well as Figure 8 The connecting block 24 is provided with convex edges 26 on both sides opposite to each other along the second direction, and the two opposite inner walls of the assembly groove 11 are provided with limiting grooves 116. The convex edges 26 can be inserted into the limiting grooves 116 along the first direction, which can prevent the connecting member 2 from moving along the third direction, and at the same time increase the insertion stability between the connecting member 2 and the assembly groove 11.

[0087] In this embodiment, the fastener 4 may be a self-tapping screw.

[0088] Since self-tapping screws are used, the contact support 1 made of thermosetting material cannot be tapped out of the screw hole by the self-tapping screws. Figure 7 In the middle position, the assembly groove 11 has an upper notch, and the armature 3 can fit with the connecting member 2. Figure 8 Two third connecting holes 241 are provided on the connecting block 24, and the two fasteners 4 pass through the second connecting holes 31 on the armature 3 in sequence and are screwed into the third connecting holes 241 on the connecting block 24, so that the armature 3 and the connecting piece 2 are fitted and screwed together.

[0089] See also Figure 8One or more material reduction holes 242 are provided on the connecting block 24 to reduce the material used in making the connecting piece 2, reduce the cost, and achieve lightweight.

[0090] In this embodiment, the material of the connecting member 2 is thermoplastic plastic, and screw holes can be tapped out of the thermoplastic plastic by self-tapping screws.

[0091] See also Figure 7 The four corners of the armature 3 are provided with cut corners 34 to eliminate the sharp corners of the armature 3 and avoid serious stress concentration at the four corners of the armature 3.

[0092] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A contactor contact support assembly, characterized in that: include: A contact support (1) is configured to be movably mounted in a housing of the contactor, and a mounting groove (11) is provided on the contact support (1); A connecting piece (2) is inserted into the assembly groove (11); An armature (3) is in the shape of a flat plate and is stacked with the contact support (1); A fastener (4) passes through the armature (3) and is threadedly connected to the connecting piece (2).

2. The contactor contact support assembly according to claim 1, characterized in that: The connecting member (2) comprises a spring leaf (21), the spring leaf (21) being elastically deformable along the moving direction of the contact support (1), and the fastening member (4) being screwed to the spring leaf (21).

3. The contactor contact support assembly according to claim 2, characterized in that: The spring leaf (21) comprises a deformation portion (211) and clamping arms (212) respectively arranged at two ends of the deformation portion (211); The assembly groove (11) comprises two first groove sections (111) arranged opposite to each other and a second groove section (112) connecting the two first groove sections (111), wherein the second groove section (112) extends in a direction away from the armature (3); The two clamping arms (212) are respectively clamped in the two first slot sections (111); the deformation portion (211) is located in the second slot section (112) and is protruded relative to the clamping arms (212) in a direction away from the armature (3); and the fastener (4) is screwed to the deformation portion (211).

4. The contactor contact support assembly according to claim 3, characterized in that: A first protrusion (22) is provided on the side of the deformation portion (211) facing away from the armature (3), and a threaded hole (23) for penetrating the fastener (4) is provided through the deformation portion (211) and the first protrusion (22).

5. The contactor contact support assembly according to claim 4, characterized in that: A first connecting hole (12) for inserting the fastener (4) is provided through the side wall of the assembly groove (11), and the assembly groove (11) has a bottom wall (114) capable of stopping the spring leaf (21) in the insertion direction of the spring leaf (21), and when the spring leaf (21) abuts against the bottom wall (114), the threaded hole (23) is aligned with the first connecting hole (12).

6. The contactor contact support assembly according to claim 2, characterized in that: The assembly grooves (11) are recessed on opposite sides of the contact support (1), and the spring sheets (21) and the fasteners (4) are arranged in one-to-one correspondence with the assembly grooves (11).

7. The contactor contact support assembly according to any one of claims 2 to 6, characterized in that: The material of the connecting piece (2) is metal.

8. The contactor contact support assembly according to claim 1, characterized in that: The connecting member (2) comprises a connecting block (24) clamped in the assembly groove (11), one side of the connecting block (24) along the first direction is provided with one or more retaining buckles (25), the contact support (1) is provided with a clamping hole (15) connected to the assembly groove (11), and the retaining buckle (25) is clamped with the clamping hole (15); The first direction is the insertion direction of the connecting member (2).

9. The contactor contact support assembly according to claim 8, characterized in that: The anti-retraction buckle (25) comprises a cantilever (251) and a hook (252), wherein the cantilever (251) is connected to the connecting block (24), and the hook (252) is protrudingly arranged at one end of the cantilever (251) away from the connecting block (24), and the cantilever (251) is used to elastically deform when the hook (252) slides along the inner wall of the clamping hole (15), and the hook (252) is hooked on the edge of the clamping hole (15) after the cantilever (251) recovers its deformation; The contact support (1) is recessed with a concealed groove (16) communicating with the latch hole (15), and the latch hook (252) is located in the concealed groove (16).

10. The contactor contact support assembly according to claim 8, characterized in that: The connecting block (24) is provided with convex edges (26) on both opposite sides along the second direction, and the two opposite inner walls of the assembly groove (11) are provided with limiting grooves (116), and the convex edges (26) can be inserted into the limiting grooves (116) along the first direction; The second direction is perpendicular to the first direction.

11. The contactor contact support assembly according to any one of claims 8 to 10, characterized in that: The material of the connecting piece (2) is thermoplastic plastic.

12. The contactor contact support assembly according to claim 1, characterized in that: At least one positioning groove (32) is provided on opposite sides of the armature (3), and a positioning column (17) is provided on the contact support (1) corresponding to each positioning groove (32), and the positioning column (17) is clamped in the corresponding positioning groove (32).

13. A contactor, characterized in that A housing is provided with a moving contact, a stationary contact, an electromagnetic coil, a reaction spring and a contactor contact support assembly as claimed in any one of claims 1 to 12; When the electromagnetic coil is energized, the armature (3) is magnetically attracted to drive the contact support (1) to move, and the moving contact is mounted on the contact support (1) so as to contact the stationary contact under the drive of the contact support (1); when the electromagnetic coil is de-energized, the contact support (1) can move under the elastic force of the reaction spring, and the moving contact is separated from the stationary contact under the drive of the contact support (1).

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