Electromagnetic relay capable of realizing stable rotation of armature part

Abstract

The utility model discloses an electromagnetic relay for realizing stable rotation of an armature part, which comprises a base, a rotating shaft support and the armature part, the rotating shaft support comprises a support frame and a rotating shaft arranged on the support frame, the armature part is provided with a shaft hole, and the rotating shaft penetrates through the shaft hole, so that the armature part can rotate around the rotating shaft; the supporting frame is provided with an inserting part, and the inserting part is inserted and fixed into an inserting groove correspondingly formed in the base. According to the utility model, the firm connection of the rotating shaft bracket and the base can be ensured, the stress is more uniform in the assembling and positioning process, the structure centering property is better, the precision is higher, and the position of the rotating shaft bracket is not loosened in the product production and turnover process, so that the position of the rotating shaft can be ensured to be fixed, and the armature part can stably and accurately rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to an electromagnetic relay for realizing stable rotation of an armature part. Background Art

[0002] In an electromagnetic relay of the prior art, in order to facilitate the installation of the coil part from top to bottom, the shaft part on the base for installing the armature part is separated to form a shaft bracket. After the coil part is installed into the base from top to bottom, the shaft bracket is connected to the base, and then the armature part is installed. At present, the shaft bracket and the base are connected by a single-sided snap connection, but this connection method has the following shortcomings: on the one hand, the shaft bracket is unevenly stressed under the single-sided snap, the shaft of the shaft bracket is prone to tilt, and the positioning accuracy is insufficient; on the other hand, the clamping force of the snap is small, and the position of the bracket may change during the production turnover of the product. Therefore, this connection method of the shaft bracket and the base in the prior art cannot ensure the rotation stability and accuracy of the armature part. Utility Model Content

[0003] The utility model aims at the technical problems existing in the prior art and provides an electromagnetic relay which can realize the stable rotation of an armature part. The utility model improves the connection mode between the rotating shaft bracket and the base to ensure that the armature part can realize stable and accurate rotation.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an electromagnetic relay for realizing stable rotation of an armature part, comprising a base, a shaft bracket and an armature part, the shaft bracket comprising a support frame and a shaft arranged on the support frame, the armature part is provided with an axis hole, the shaft is passed through the axis hole, so that the armature part can rotate around the shaft; the support frame is provided with a plug-in part, and the plug-in part is inserted and fixed in a slot corresponding to the base.

[0005] Furthermore, the plug-in portion is fixedly fitted with the slot by at least one of hot riveting, interference fit, and glue dispensing.

[0006] Furthermore, at least one glue dispensing hole is provided at the bottom of the slot, and the glue dispensing hole passes through the bottom surface of the base. A glue creepage gap connecting the glue dispensing hole is provided between the plug-in part and the slot, and the glue creepage gap includes a bottom gap formed between the bottom surface of the plug-in part and the bottom of the slot and / or a side gap formed between the side surface of the plug-in part and the slot wall of the slot.

[0007] Furthermore, at least one hot-riveted protrusion is provided at the tail end of the plug-in portion, and the hot-riveted protrusion is penetrated through a hole provided at the bottom of the slot and is hot-riveted, and the hole passes through the bottom surface of the base.

[0008] Furthermore, the hole is a glue dispensing hole, or the bottom of the slot is provided with a glue dispensing hole separated from the hole, and the glue dispensing hole is glued after the hot riveting protrusion is hot-riveted; and a glue dispensing recess is provided on the hot riveting protrusion.

[0009] Furthermore, the plug-in part and the slot are equipped with a positioning structure, which includes a positioning rib, which is provided on one of the side surface of the plug-in part and the slot wall, and extends along the depth direction of the slot, and the positioning rib is abutted against the other side surface of the plug-in part and the slot wall.

[0010] Furthermore, there are multiple plug-in parts, and at least two plug-in parts are located on different sides of the support frame.

[0011] Furthermore, the pivot bracket adopts a symmetrical structure, the support frame is in the shape of a letter "U", including a top plate and two side plates, the two side plates are respectively arranged at the opposite ends of the bottom surface of the top plate and are parallel to each other, the pivot is arranged in the middle of the top surface of the top plate, and the bottom ends of the two side plates are respectively provided with the plug-in parts; the base is respectively provided with support platforms corresponding to the two side plates, and the support platforms are provided with the slots, and the parts of the bottom ends of the two side plates where the plug-in parts are not provided are respectively resting on the top ends of the corresponding support platforms.

[0012] Furthermore, it also includes a shell, which is connected to the base, and the armature part is located between the base and the shell; the top surface of the armature part is provided with one or more first protrusions, and the first protrusions serve as sliding contact positions for the armature part to cooperate with the inner top surface of the shell during rotation; the first protrusion is a rib structure or a convex bud structure, and the surface of the convex bud structure is an arc spherical surface.

[0013] Furthermore, a limiting protrusion is provided on the inner top surface of the shell corresponding to the rotating shaft, and the limiting protrusion abuts against the tail end of the rotating shaft, or the limiting protrusion and the tail end of the rotating shaft are clearance-fitted; the rotating shaft and the shaft hole are clearance-fitted; the top surface of the armature part is provided with a circle of recessed grooves leading to the shaft hole around the shaft hole, and the limiting protrusion enters the recessed groove, and during the rotation of the armature part, the bottom surface of the recessed groove cooperates with the bottom end of the limiting protrusion for limiting.

[0014] Furthermore, the top surface of the support frame is provided with one or more second protrusions, which contact and cooperate with the armature part during the rotation of the armature part; the second protrusion is a rib structure or a convex bud structure, and the surface of the convex bud structure is an arc spherical surface; the top surface of the support frame is provided with a circle of bosses located on the periphery of the rotating shaft, and the bosses are used to support the armature part, and the top surface of the bosses is flush with the top of the second protrusions.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. Since the support frame is provided with a plug-in portion, which is inserted and fixed in a slot corresponding to the base, the utility model can ensure that the rotating shaft bracket is firmly connected to the base, and the rotating shaft will not be tilted due to uneven force, and the rotating shaft bracket will not be loosened during the product production turnover process, thereby ensuring that the rotating shaft position is fixed, so that the armature part can achieve stable and precise rotation.

[0017] 2. The plug-in part is fixedly matched with the slot by at least one of hot riveting, interference fit and glue dispensing, which has the characteristics of simple fixing method and low cost. In particular, in the glue dispensing method, at least one glue dispensing hole is provided at the bottom of the slot, and a glue creeping gap connecting the glue dispensing hole is provided between the plug-in part and the slot, so that the glue dispensing operation is more convenient and sufficient glue creeping gap is ensured between the plug-in part and the slot.

[0018] 3. At least one hot-riveted protrusion is provided at the rear end of the plug-in portion, and the hot-riveted protrusion is penetrated through a hole provided at the bottom of the slot and fixed by hot-riveting. In particular, the glue dispensing hole provided at the bottom of the slot is glued after the hot-riveted protrusion is hot-riveted, so that the utility model can use the hot-riveted protrusion to pre-fix the support frame and the base, thereby not only further improving the convenience of subsequent glue dispensing operations, but also further improving the positioning accuracy of the support frame and the base.

[0019] 4. The setting of the first protrusion can prevent the injection molding burrs on the sliding contact area of ​​the armature part from causing jamming interference when the armature part contacts the shell during rotation, making the sliding friction smoother and reducing the risk of the injection molding burrs falling off due to friction to form free plastic chips.

[0020] 5. The combination of the sink groove and the limiting convex portion can make the armature part rotate more reliably.

[0021] 6. The setting of the second protrusion can not only provide further support for the armature part, but also prevent the injection molding burrs on the sliding contact area of ​​the armature part from getting stuck and interfering with the support frame when the armature part contacts with the support frame during the rotation of the armature part, thereby making the sliding friction smoother and reducing the risk of the injection molding burrs falling off due to friction to form free plastic chips.

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments; however, the electromagnetic relay for realizing stable rotation of the armature part of the utility model is not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an exploded schematic diagram of the utility model;

[0024] Figure 2 This is a three-dimensional structure diagram of the rotating shaft bracket of the utility model Figure 1 ;

[0025] Figure 3 This is a three-dimensional structure diagram of the rotating shaft bracket of the utility model Figure 2 ;

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the base of the utility model;

[0027] Figure 5 yes Figure 4 A magnified schematic diagram of part A;

[0028] Figure 6 It is a bottom view of the base of the utility model;

[0029] Figure 7 This is a three-dimensional structure diagram of the base, coil part, and shaft support of the utility model in the assembled state. Figure 1 ;

[0030] Figure 8 This is a three-dimensional structure diagram of the base, coil part, and shaft support of the utility model in the assembled state. Figure 2 ;

[0031] Fig. 9 yes Figure 7 A top view of

[0032] Fig.10 yes Fig. 9 AA section view;

[0033] Fig.11 yes Fig. 9 BB cross-sectional view;

[0034] Fig.12 yes Fig. 9 CC section view;

[0035] Fig.13 yes Figure 7 The main view;

[0036] Fig.14 It is the DD section view of 13;

[0037] Fig.15 It is a three-dimensional structural schematic diagram of the armature part of the utility model;

[0038] Fig.16 It is a top view of the utility model;

[0039] Fig.17 yes Fig.16 EE cross-sectional view;

[0040] Fig.18 yes Fig.17 A magnified schematic diagram of part B;

[0041] Fig.19 yes Fig.17 A magnified schematic diagram of part C;

[0042] Fig. 20 yes Fig.17 An enlarged schematic diagram of part D in the middle;

[0043] Fig.21 This is a schematic diagram of the three-dimensional structure of the coil part of the utility model Figure 1 ;

[0044] Fig. 22 This is a schematic diagram of the three-dimensional structure of the coil part of the utility model Figure 2 ;

[0045] Fig.23 yes Fig. 9 FF cross-sectional view;

[0046] In the figure, 1, base, 11, support platform, 111, slot, 1111, positioning rib, 1112, bottom gap, 1113, side gap, 12, glue dispensing hole, 13, accommodating cavity, 131, positioning groove, 2, coil part, 21, coil frame, 22, iron core, 221, contact part, 222, positioning convex part, 3, shaft bracket, 31, shaft, 32, support frame, 321, top plate, 322, side plate, 323, second convex part, 33, plug-in part, 331, hot riveting convex part, 332, glue dispensing and giving way sinking platform, 34, boss, 4, armature part, 41, shaft hole, 411, sinking groove, 42, snapping part, 43, plastic part, 431, first convex part, 44, iron core, 5, shell, 51, limiting convex part. DETAILED DESCRIPTION

[0047] In the present utility model, the terms "first", "second", etc. are only used to distinguish similar objects, rather than to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. In the description, the directions or positional relationships indicated by "upper", "lower", "left", "right", "front", "back", "inside", "outside", "top / bottom", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model, rather than indicating or implying that the device referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0048] In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more, and "at least one" means one or more. In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] See also Figure 1-Figure 20 As shown, an electromagnetic relay for realizing stable rotation of the armature part of the utility model comprises a base 1, a shaft bracket 3, an armature part 4 and a shell 5, the shaft bracket 3 comprises a support frame 32 and a shaft 31 arranged on the support frame 32, the armature part 4 is provided with a shaft hole 41, the shaft 31 is passed through the shaft hole 41, and the two are clearance-matched, so that the armature part 4 can rotate around the shaft 31. The shell 5 is connected to the base 1, and the armature part 4 is located between the base 1 and the shell 5. The support frame 32 is provided with a plug-in portion 33, which extends in a direction opposite to the extension direction of the shaft 31, and is inserted and fixed in a slot 111 correspondingly arranged in the base 1. Specifically, the plug-in portion 33 is fixedly matched with the slot 111 by at least one of hot riveting, interference fit, and glue dispensing.

[0050] In this embodiment, the support frame 32 is provided with a plurality of plug-in portions 33, and at least two plug-in portions 33 are located on different sides of the support frame 32. Figure 2 , Figure 3 As shown, the shaft support 3 adopts a symmetrical structure, the support frame 32 is roughly in the shape of a letter "U", including a top plate 321 and two side plates 321, the two side plates 321 are respectively arranged at the two opposite ends of the bottom surface of the top plate 321 in the width direction and are parallel to each other, the shaft 31 is arranged in the middle of the top surface of the top plate 321, and the bottom ends of the two side plates 321 are respectively provided with plug-in parts 33. Figure 4 As shown, the base 1 is provided with two support platforms 11, and the two support platforms 11 correspond to the two side plates 321 one by one. The support platforms 11 are provided with slots 111, and the parts of the bottom ends of the two side plates 321 without the plug-in parts 33 are respectively placed on the top ends of the corresponding support platforms 11, as shown in FIG. Fig.12 shown.

[0051] The plug-in portion 33 and the slot 111 are matched with a positioning structure, which includes a positioning rib 1111, which is provided on one of the side of the plug-in portion 33 and the slot wall of the slot 111, and extends along the depth direction of the slot 111, and the positioning rib 1111 is abutted against the other of the side of the plug-in portion 33 and the slot wall of the slot 111. In this way, when the slot 111 is deformed, the positioning rib 1111 can be used to achieve accurate positioning of the key position through interference fit. Specifically, in this embodiment, the positioning rib 1111 is provided on the slot wall of the slot 111.

[0052] In this embodiment, the plug-in portion 33 is plate-shaped, and the slot 111 is strip-shaped. The plug-in portion 33 is provided with guide surfaces at the bottom of both sides in the length direction to facilitate the plug-in portion 33 to be inserted into the slot 111. The slot 111 is provided with a plurality of positioning ribs 1111 on at least one groove wall in the width direction. Figure 4 , Figure 5 As shown, the plug-in portion 33 and the slot 111 are tightly matched in the width direction of the slot 111. The maximum length of the plug-in portion 33 is consistent or substantially consistent with the length of the slot 111, so the slot 111 is not provided with a positioning rib 1111 on the slot wall in the length direction, but it is not limited thereto. In other embodiments, according to actual needs, the slot 111 may also be provided with a positioning rib 1111 on at least one slot wall in the length direction.

[0053] like Figure 6 As shown, at least one glue dispensing hole 12 is provided at the bottom of the slot 111, and the glue dispensing hole 12 passes through the bottom surface of the base 1, and a glue creeping gap connecting the glue dispensing hole 12 is provided between the plug-in portion 33 and the slot 111, and the glue creeping gap includes a bottom gap 1112 formed between the bottom surface of the plug-in portion 33 and the bottom of the slot 111 and / or a side gap 1113 formed between the side surface of the plug-in portion 33 and the slot wall of the slot 111. Specifically, in this embodiment, the glue creeping gap includes a bottom gap 1112 formed between the bottom surface of the plug-in portion 33 and the bottom of the slot 111, as shown in FIG. Fig.12 The creeping glue gap also includes a side gap 1113 formed between the side of the plug-in portion 33 and the groove wall of the slot 11 (eg, the groove wall of the slot 111 provided with the positioning rib 1111), such as Fig.14 As shown, the side gap 1113 is connected to the bottom gap 1112. This helps to further improve the glue fixation effect between the plug-in portion 33 and the slot 11. In this embodiment, the number of glue holes 12 set at the bottom of each slot 111 is specifically two, but not limited to this, and the two glue holes 12 are arranged along the length direction of the slot 111.

[0054] As a preferred structure, Figure 2 , Figure 3As shown, at least one hot-riveted convex part 331 is respectively provided at the tail end of each plug-in part 33, and the hot-riveted convex part 331 is penetrated through the hole set at the bottom of the slot 111 and fixed by hot-riveting. The hole passes through the bottom surface of the base 1, and the hole is the glue-dispensing hole 12 mentioned above, but it is not limited to this. In other embodiments, the hole and the glue-dispensing hole 12 are different holes. The hot-riveted convex part 331 is hot-riveted before the plug-in part 33 and the slot 111 are glue-dispensed and fixed, so as to realize the pre-fixation of the support frame 32 and the base 1, so as to facilitate the subsequent glue-dispensing operation, so as to avoid the position change of the rotating shaft bracket 3 under the action of temperature or vibration during the turnover process or the glue drying and curing process. In addition, the rotating shaft bracket 3 is a force-bearing part. Due to the limited volume and structure, it is difficult to enlarge the hot-riveted convex part 331. The strength of hot-riveting alone is limited. Therefore, further glue-dispensing can greatly improve the fixing strength of the plug-in part and the slot. However, for products with larger volume, on the basis that the hot-riveted convex part can be enlarged, the fixing of the plug-in part and the slot can also be realized only by hot-riveting. In this embodiment, the number of the hot-riveted protrusions 331 provided at the tail end of each plug-in portion 33 is two, but not limited thereto, and the two hot-riveted protrusions 331 are arranged along the length direction of the plug-in portion 33. The hot-riveted protrusions are provided with a glue-dispensing recess 332, which can prevent the hot-riveted protrusions 331 from covering the glue-dispensing holes 12 after hot-riveting, thereby facilitating the glue liquid to flow into the glue creeping gap between the plug-in portion 33 and the slot 111, thereby achieving precise and firm gluing and fixing.

[0055] like Fig.15 As shown, the top surface of the armature part 4 is provided with one or more first protrusions 431, and the first protrusions 431 serve as sliding contact positions for the armature part 4 to cooperate with the inner top surface of the shell 5 during the rotation process. The armature part 4 specifically includes an armature and a plastic part 43, which are integrally insert-molded together, and the first protrusion 431 is specifically arranged on the plastic part 43, and the first protrusion 431 is a convex bud structure, and the surface of the convex bud structure is an arc spherical surface. In other embodiments, the first protrusion 431 is a rib structure. The provision of the first protrusion 431 can prevent the injection burrs on the sliding contact area of ​​the armature part 4 from jamming and interfering when the armature part 4 contacts the shell 5 during the rotation process, making the sliding friction smoother and reducing the risk of the injection burrs falling off due to friction to form free plastic chips.

[0056] like Figure 16-Figure 19 As shown, the inner top surface of the housing 5 is provided with a limiting protrusion 51 corresponding to the rotating shaft 31, and the limiting protrusion 51 and the tail end of the rotating shaft 31 are clearance-matched, but it is not limited thereto. In other embodiments, the limiting protrusion 51 abuts against the tail end of the rotating shaft 31. Fig.15As shown, the top surface of the armature part 4 is provided with a circle of recessed grooves 411 leading to the shaft hole 41 around the shaft hole 41, and the limiting protrusion 51 enters the recessed groove 411. During the rotation of the armature part 4, the bottom surface of the recessed groove 411 cooperates with the bottom end of the limiting protrusion 51 to limit, which can make the rotation of the armature part 4 more reliable.

[0057] like Figure 2 As shown, the top surface of the support frame 32 (i.e., the top surface of the top plate 321) is provided with one or more second protrusions 323, and the second protrusions 423 are in contact with the armature part 4 during the rotation of the armature part 4. Specifically, in this embodiment, the number of the second protrusions 423 is two, and the two second ribs are respectively located at the two ends of the top plate 321 in the length direction, and the second protrusions 423 are rib structures and extend along the width direction of the top plate 321. In other embodiments thereof, the second protrusions 423 are convex bud structures, and the surface of the convex bud structure is an arc spherical surface. The top surface of the support frame 32 is provided with a circle of bosses located on the periphery of the rotating shaft 31, and the bosses are used to support the armature part 4, and the top surface of the bosses is flush with the top of the second protrusions 423.

[0058] The utility model also includes a coil part 2, such as Fig.21 , Fig. 22 As shown, the coil part 2 includes a coil frame 21 and an iron core 22, which are fixed together by insert injection molding, and an enameled wire 23 is wound on the coil frame 21. The iron core 22 is roughly U-shaped, including a core rod located in the coil frame 21 and two contact parts 221 located outside the two ends of the coil frame 21, and the two side surfaces of each contact part 221 in the horizontal direction perpendicular to the axial direction of the coil frame 21 are respectively pole shoe surfaces. The armature part 4 is provided with two clapping parts 42 arranged along its width direction at both ends in its length direction, and the opposite inner sides of the two clapping parts 42 are respectively pole shoe surfaces, and the two clapping parts 42 are large and small. Specifically, the armature part 4 is a central symmetrical structure. The base 1 is provided with a receiving cavity 13 for the coil part 2 to be loaded from top to bottom. The receiving cavity 13 is provided with positioning grooves 131 at both ends in its length direction. The two contact parts 221 of the iron core 22 are respectively provided with positioning protrusions 222. The coil part is loaded into the receiving cavity 13, and the positioning protrusions 222 on the iron core 22 are respectively inserted into the corresponding positioning grooves 131 and fixed by glue.

[0059] The above-mentioned two support platforms 11 are respectively located on both sides of the accommodating cavity 13 in the width direction. After the coil part 2 is assembled, the rotating shaft bracket 3 can be installed, and then the armature part 4 can be installed, and the two contact parts 221 of the iron core 22 of the coil part can be respectively matched between the two pole shoe surfaces at both ends of the armature part 4.

[0060] The utility model also includes a contact portion 6 and a plurality of push cards 7. The contact portion 6 includes a plurality of contact units. Each group of contact units is respectively mounted on the base 1, and the contact portion 6 and the coil portion 2 are arranged along the width direction of the base 1. The movable spring portion of each contact unit cooperates with the corresponding snapping portion 42 of the armature portion 4 through the push card 7, so that the armature portion 4 pushes each push card 7 to move by rotating, so as to control the corresponding contact unit to be closed or opened.

[0061] The utility model is an electromagnetic relay that realizes stable rotation of the armature part, and its shaft bracket 3 adopts a completely symmetrical structure to ensure that the forces on both sides are even during assembly, so that the axis of the shaft 31 is aligned with the two slots 111 of the base 1 after assembly. The shaft bracket 3 is provided with a hot riveting protrusion 331, and the shaft bracket 3 and the base 1 can be accurately positioned and matched through tooling. At the same time, four hot riveting protrusions 331 are used for four-point hot pressing and riveting to achieve pre-fixation in a precise positioning state, which provides convenience for the subsequent glue dispensing process. The utility model adopts a symmetrical design of the shaft bracket 3 and the above-mentioned fixed structure to ensure that the pole shoe surfaces on both sides are symmetrical about the axis center during the rotation of the armature part 4 around the shaft 31. The shaft hole 41 of the armature part 4 and the shaft 31 are designed to be matched with a small gap. On the one hand, it is convenient for the armature part 4 to rotate flexibly about the shaft 31 to avoid getting stuck under temperature shock; on the other hand, the small gap fit can appropriately compensate for assembly errors, with a certain tolerance margin, and improve the consistency of the contact between the pole shoe surfaces on both sides during the rotation of the armature part 4.

[0062] The electromagnetic relay of the utility model realizes stable rotation of the armature part, and the uninvolved parts (such as the structure and working principle of the contact part 6 and the push card 7, etc.) are the same as those in the prior art or can be realized by using the prior art.

[0063] The above embodiments are only used to further illustrate an electromagnetic relay of the utility model for realizing stable rotation of the armature part, but the utility model is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model fall within the protection scope of the technical solution of the utility model.

Claims

1. An electromagnetic relay for realizing stable rotation of an armature part, comprising a base, a shaft bracket and an armature part, wherein the shaft bracket comprises a support frame and a shaft arranged on the support frame, the armature part is provided with a shaft hole, and the shaft is passed through the shaft hole, so that the armature part can rotate around the shaft; characterized in that: The support frame is provided with an inserting portion, and the inserting portion is inserted and fixed in a slot correspondingly provided on the base.

2. The electromagnetic relay for realizing stable rotation of the armature part according to claim 1, characterized in that: The plug-in portion is fixedly matched with the slot by at least one of hot riveting, interference fit, and glue dispensing.

3. The electromagnetic relay for realizing stable rotation of the armature part according to claim 2, characterized in that: The bottom of the slot is provided with at least one glue dispensing hole, which passes through the bottom surface of the base, and a glue creeping gap connecting the glue dispensing hole is provided between the plug-in part and the slot, and the glue creeping gap includes a bottom gap formed between the bottom surface of the plug-in part and the bottom of the slot and / or a side gap formed between the side surface of the plug-in part and the slot wall of the slot.

4. The electromagnetic relay for realizing stable rotation of the armature part according to claim 2 or 3, characterized in that: At least one hot-riveted protrusion is provided at the tail end of the plug-in portion, and the hot-riveted protrusion is penetrated through a hole provided at the bottom of the slot and is hot-riveted, and the hole passes through the bottom surface of the base.

5. The electromagnetic relay for realizing stable rotation of the armature part according to claim 4, characterized in that: The hole is independent of the glue dispensing hole arranged at the bottom of the slot, or the hole is a glue dispensing hole, and glue is dispensed after the hot riveting protrusion is hot riveted, and a glue dispensing recess is arranged on the hot riveting protrusion.

6. The electromagnetic relay for realizing stable rotation of the armature part according to claim 1, characterized in that: The plug-in part and the slot are equipped with a positioning structure, which includes a positioning rib, which is arranged on one of the side surface of the plug-in part and the slot wall of the slot and extends along the depth direction of the slot, and the positioning rib is abutted against the other one of the side surface of the plug-in part and the slot wall of the slot.

7. The electromagnetic relay for realizing stable rotation of the armature part according to claim 1, characterized in that: There are multiple plug-in parts, and at least two plug-in parts are located on different sides of the support frame.

8. The electromagnetic relay for realizing stable rotation of the armature part according to claim 1, 6 or 7, characterized in that: The pivot bracket adopts a symmetrical structure, and the support frame is in the shape of a letter "U", including a top plate and two side plates, the two side plates are respectively arranged at the opposite ends of the bottom surface of the top plate and are parallel to each other, the pivot is arranged in the middle of the top surface of the top plate, and the bottom ends of the two side plates are respectively provided with the plug-in parts; the base is respectively provided with support platforms corresponding to the two side plates, and the support platforms are provided with the slots, and the parts of the bottom ends of the two side plates that are not provided with the plug-in parts are respectively placed on the top ends of the corresponding support platforms.

9. The electromagnetic relay for realizing stable rotation of the armature part according to claim 1, characterized in that: It also includes a shell, which is connected to the base, and the armature part is located between the base and the shell; the top surface of the armature part is provided with one or more first protrusions, and the first protrusions serve as sliding contact positions for the armature part to cooperate with the inner top surface of the shell during the rotation process; The first convex portion is a rib structure or a convex bulge structure, and the surface of the convex bulge structure is an arc spherical surface.

10. The electromagnetic relay for realizing stable rotation of the armature part according to claim 9, characterized in that: A limiting protrusion is provided on the inner top surface of the shell corresponding to the rotating shaft, and the limiting protrusion abuts against the tail end of the rotating shaft, or the limiting protrusion and the tail end of the rotating shaft are clearance-fitted; the rotating shaft and the shaft hole are clearance-fitted; the top surface of the armature part is provided with a circle of recessed grooves leading to the shaft hole around the shaft hole, and the limiting protrusion enters the recessed groove, and during the rotation of the armature part, the bottom surface of the recessed groove cooperates with the bottom end of the limiting protrusion for limiting.

11. The electromagnetic relay for realizing stable rotation of the armature part according to claim 1, characterized in that: The top surface of the support frame is provided with one or more second protrusions, which contact and cooperate with the armature part during the rotation of the armature part; the second protrusion is a rib structure or a convex bud structure, and the surface of the convex bud structure is an arc spherical surface; the top surface of the support frame is provided with a circle of bosses located on the periphery of the rotating shaft, which is used to support the armature part, and the top surface of the boss is flush with the top of the second protrusion.

Images