Relay

Abstract

The relay comprises a yoke plate assembly and an insulating cover, the yoke plate assembly comprises a yoke plate, and the insulating cover covers the yoke plate assembly; the insulating cover is provided with a first positioning structure, the yoke plate assembly is provided with a second positioning structure, and the first positioning structure and the second positioning structure are in positioning fit and used for positioning the relative position of the yoke plate assembly and the insulating cover in the direction parallel to the yoke plate. Through the above design, the first positioning structure and the second positioning structure can be used to position the relative position of the yoke plate assembly and the insulating cover in the direction parallel to the yoke plate, so that the relative movement between the insulating cover and the yoke plate assembly is avoided, the brazing centering degree of the relay static assembly is ensured, and the reliability of the relay static assembly is improved. And the static assembly is prevented from deviating to one side to cause structural interference between the movable contact spring and the insulating cover.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electric control devices, and particularly to a relay. Background Art

[0002] A relay belongs to an electronic control device, which has a control system (also known as an input circuit) and a controlled system (also known as an output circuit), and is usually applied to an automatic control circuit. The essence of a relay can be understood as an "automatic switching device" that uses a smaller current to control a larger current. Therefore, a relay is mainly used in a circuit to achieve functions such as automatic regulation, safety protection, and circuit conversion.

[0003] In the existing design scheme of a relay, the magnetic circuit part of the relay includes a yoke iron assembly. The yoke iron assembly includes a U-shaped yoke iron and a yoke iron plate assembly. The yoke iron plate assembly includes a yoke iron plate connected to the U-shaped yoke iron and a frame piece connected to the side of the yoke iron plate facing away from the U-shaped yoke iron. The insulating cover of the relay is arranged on the side of the frame piece facing away from the yoke iron plate. Components such as the frame piece, the insulating cover, and the static contact head together constitute the static assembly of the relay. However, relative movement is likely to occur between the insulating cover and the yoke iron plate assembly during the assembly process, which affects the brazing centering degree of the static assembly of the relay, resulting in the static assembly tilting to one side, reducing the gap between the rib in the insulating cover and the moving reed, and further causing structural interference between the moving reed and the insulating cover, affecting the movement of the moving reed. Summary of the Invention

[0004] A main object of the present disclosure is to overcome at least one defect of the above-mentioned prior art, and to provide a relay with a better positioning effect between the insulating cover and the yoke iron plate assembly.

[0005] To achieve the above object, the present disclosure adopts the following technical solutions:

[0006] According to one aspect of the present disclosure, there is provided a relay, which includes a yoke iron plate assembly and an insulating cover. The yoke iron plate assembly includes a yoke iron plate, and the insulating cover covers the yoke iron plate assembly. Wherein, the insulating cover is provided with a first positioning structure, and the yoke iron plate assembly is provided with a second positioning structure. The first positioning structure and the second positioning structure are in positioning cooperation to position the relative position of the yoke iron plate assembly and the insulating cover in a direction parallel to the yoke iron plate.

[0007] According to one embodiment of the present disclosure, the inner wall of the insulating cover has ribs, the ribs have a first end face facing the yoke iron plate assembly, and the first positioning structure is arranged on the first end face.

[0008] According to one embodiment of the present disclosure, the first positioning structure is a first positioning hole, the second positioning structure is a positioning post, the positioning post is arranged corresponding to the position of the first positioning hole, and at least a part of the positioning post is inserted into the first positioning hole.

[0009] According to one embodiment of the present disclosure, the inner wall of the insulating cover has at least two of the ribs, and at least two of the first positioning holes are respectively located on the first end faces of different two of the ribs.

[0010] According to one embodiment of the present disclosure, the yoke iron plate has a first surface facing the insulating cover, the insulating cover is located on the first surface, a first direction parallel to the first surface and a second direction parallel to the first surface and perpendicular to the first direction are defined, the inner wall of the insulating cover includes two first wall surfaces opposite to each other along the first direction and respectively parallel to the second direction, and each of the first wall surfaces has two of the ribs arranged at intervals along the second direction; wherein, the first positioning holes are respectively arranged on the first end faces of two of the ribs arranged at diagonal positions, and the other two ribs are not provided with the first positioning holes.

[0011] According to one embodiment of the present disclosure, the cross-sectional shape of the first positioning hole is an oval, the cross-sectional shape of the positioning post is circular, and the radius of the circle is equal to the radius of the semi-circle included at the end of the oval; wherein, the major axes of the ovals corresponding to the cross-sectional shapes of the two first positioning holes are perpendicular to each other.

[0012] According to one embodiment of the present disclosure, the insulating cover is provided with one of the first positioning holes, the first positioning hole includes two first hole parts spaced apart from each other and a second hole part connecting between the two first hole parts, and the cross-sectional shape of the positioning post is the same as the cross-sectional shape of the first positioning hole.

[0013] According to one embodiment of the present disclosure, the edge of the end of the positioning post facing the insulating cover has a first chamfer structure.

[0014] According to one embodiment of the present disclosure, the yoke iron plate assembly further includes a frame piece, the frame piece is connected to the first surface of the yoke iron plate facing the insulating cover, and the insulating cover is located on the side of the frame piece facing away from the yoke iron plate.

[0015] According to one embodiment of the present disclosure, the end of the positioning post facing away from the insulating cover is connected to the yoke iron plate, and the positioning post passes through the opening of the frame piece and is inserted and matched with the first positioning hole.

[0016] According to one embodiment of the present disclosure, the first surface is provided with a second positioning hole, the positioning post is a positioning pin, and one end of the positioning pin facing away from the insulating cover is inserted into the second positioning hole.

[0017] According to one embodiment of the present disclosure, an edge of one end of the positioning post facing the yoke iron plate assembly has a second chamfer structure.

[0018] According to one embodiment of the present disclosure, the second positioning hole is a blind hole, and the blind hole is formed by stamping the yoke iron plate, so that a protrusion is formed at a position corresponding to the second positioning hole on the second surface of the yoke iron plate facing away from the frame piece.

[0019] According to one embodiment of the present disclosure, it further includes a metal shell, the metal shell is connected to the second surface of the yoke iron plate, at least two positioning protrusions are provided on the second surface, and at least two of the positioning protrusions respectively abut against the periphery of one end of the metal shell connected to the yoke iron plate for positioning the metal shell; wherein, at least one of the positioning protrusions is the protrusion formed corresponding to the second positioning hole.

[0020] According to one embodiment of the present disclosure, wherein: the positioning post and the yoke iron plate are of an integral structure; or, the positioning post and the yoke iron plate are of a split structure.

[0021] According to one embodiment of the present disclosure, the yoke iron plate assembly further includes a frame piece, the frame piece is connected to the first surface of the yoke iron plate facing the insulating cover, and the insulating cover is located on one side of the frame piece facing away from the yoke iron plate; wherein, the inner wall of the insulating cover has ribs, the ribs have a first end face facing the yoke iron plate assembly, and the first positioning structure is arranged on the first end face; wherein, the frame piece has a plurality of frame edges, the plurality of frame edges enclose an opening of the frame piece, the inner wall of the frame edge has a protrusion protruding parallel to the first surface, and the position of the protrusion is arranged corresponding to the position of the rib, and the second positioning structure is arranged on the second end face of the protrusion facing the insulating cover.

[0022] According to one embodiment of the present disclosure, wherein: a third positioning hole is provided on the second end face, the second positioning structure is a positioning pin, and one end of the positioning pin facing away from the insulating cover is inserted into the third positioning hole; or, the positioning post and the frame piece are of an integral structure.

[0023] According to one embodiment of the present disclosure, the first surface is provided with a fourth positioning hole, the fourth positioning hole is located at a position of the yoke iron plate corresponding to the edge of the frame piece, and the fourth positioning hole is used for positioning during the assembly process of the yoke iron plate and the frame piece through a tooling positioning post inserted into the fourth positioning hole.

[0024] According to one embodiment of the present disclosure, the yoke iron plate assembly is brazed to the insulating cover.

[0025] As can be seen from the above technical solutions, the advantages and positive effects of the relay proposed by the present disclosure are as follows:

[0026] The relay proposed by the present disclosure includes a yoke iron plate assembly and an insulating cover. The yoke iron plate assembly includes a yoke iron plate, and the insulating cover covers the yoke iron assembly. The insulating cover is provided with a first positioning structure, and the yoke iron plate assembly is provided with a second positioning structure, and the first positioning structure is in positioning cooperation with the second positioning structure. Through the above design, the present disclosure can use the first positioning structure and the second positioning structure to position the relative positions of the yoke iron plate assembly and the insulating cover in the direction parallel to the yoke iron plate, avoiding relative movement between the insulating cover and the yoke iron plate assembly, especially during the assembly process, ensuring the brazing centering degree of the static assembly of the relay, avoiding the static assembly from tilting to one side and causing structural interference between the moving reed and the insulating cover, and ensuring the movement of the moving reed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] By considering the following detailed description of the preferred embodiments of the present disclosure in conjunction with the accompanying drawings, various objectives, features, and advantages of the present disclosure will become more apparent. The drawings are only exemplary illustrations of the present disclosure and are not necessarily drawn to scale. In the drawings, the same reference numerals always represent the same or similar components. Among them:

[0028] Figure 1 is a top view of a relay shown according to an exemplary embodiment;

[0029] Figure 2 is along Figure 1 a partial cross-sectional view taken along the line A-A in

[0030] Figure 3 is along Figure 1 a partial cross-sectional view taken along the line B-B in

[0031] Figure 4 is Figure 2 a perspective structural view of the yoke iron plate shown in

[0032] Figure 5 is Figure 2 a bottom view of the insulating cover shown in

[0033] Figure 6 is Figure 2 a perspective structural view of the positioning post shown in

[0034] Figure 7 is a bottom view of the insulating cover of the relay shown according to another exemplary embodiment;

[0035] Figure 8 Therefore Figure 7 is a schematic perspective view of a positioning post in an exemplary embodiment represented by;

[0036] Figure 9 is a schematic perspective view of an insulating cover shown according to another exemplary embodiment;

[0037] Figure 10 is a partial cross-sectional view of a partial structure of a relay shown according to still another exemplary embodiment;

[0038] Figure 11 is Figure 10 a top view of the yoke iron plate assembly shown.

[0039] The description of the reference numerals is as follows:

[0040] 110. Yoke iron plate;

[0041] 1101. First surface;

[0042] 111. Second positioning hole;

[0043] 112. Fourth positioning hole;

[0044] 120. Frame piece;

[0045] 121. Frame edge;

[0046] 122. Protrusion;

[0047] 130. Positioning post;

[0048] 131. First chamfer structure;

[0049] 132. Second chamfer structure;

[0050] 200. Insulating cover;

[0051] 201. First wall surface;

[0052] 210. Rib;

[0053] 211. First positioning hole;

[0054] 2111. First hole part;

[0055] 2112. Second hole part;

[0056] 300. Metal shell;

[0057] 410. Static contact;

[0058] X. First direction;

[0059] Y. Second direction. Detailed Implementation Modes

[0060] Typical embodiments embodying the features and advantages of the present disclosure will be described in detail in the following description. It should be understood that the present disclosure can have various variations in different embodiments, all of which do not depart from the scope of the present disclosure, and the descriptions and drawings therein are for illustrative purposes in essence and not for limiting the present disclosure.

[0061] In the following description of different exemplary embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part of the present disclosure, and in which different exemplary structures, systems, and steps that can implement various aspects of the present disclosure are shown by way of example. It should be understood that other specific solutions of components, structures, exemplary devices, systems, and steps can be used, and structural and functional modifications can be made without departing from the scope of the present disclosure. Moreover, although terms such as "above", "between", "within", etc. may be used in this specification to describe different exemplary features and elements of the present disclosure, these terms are used herein only for convenience, for example, according to the directions of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional direction of the structure to fall within the scope of the present disclosure.

[0062] The relay proposed by the present disclosure is described by taking the relay installed in the medium and high voltage module as an example. It is easy for those skilled in the art to understand that, in order to apply the relevant designs of the present disclosure to other types of relays, various modifications, additions, substitutions, deletions, or other changes are made to the following specific implementation modes, and these changes are still within the scope of the principle of the relay proposed by the present disclosure.

[0063] Refer to Figures 1 to 6 as shown Figure 1 FIG. shows a top view of a relay that can embody the principle of the present disclosure in an exemplary embodiment; Figure 2 FIG. shows a partial cross-sectional view taken along the Figure 1 line A - A in FIG., and some structures of the relay are hidden, and only structures such as the yoke iron plate assembly, the insulating cover 200, and the metal shell 300 are retained; Figure 3 FIG. shows a partial cross-sectional view taken along the Figure 1 line B - B in FIG.; Figure 4 FIG. shows a three-dimensional structural schematic diagram of the yoke iron plate 110; Figure 5 FIG. shows a bottom view of the insulating cover 200; Figure 6 FIG. shows a three-dimensional structural schematic diagram of the positioning post 130. The structures, connection methods, and functional relationships of the main components of the relay proposed by the present disclosure will be described in detail below with reference to the above-mentioned drawings.

[0064] AsFigures 1 to 6 As shown, in an embodiment of the present disclosure, the relay proposed by the present disclosure includes a yoke iron plate assembly and an insulating cover 200 (such as, but not limited to, a ceramic cover). The yoke iron plate assembly includes a yoke iron plate 110, and the insulating cover 200 covers the yoke iron plate assembly. On this basis, the insulating cover 200 is provided with a first positioning structure, and the yoke iron plate assembly is provided with a second positioning structure. The first positioning structure and the second positioning structure are positioned and matched to position the relative positions of the yoke iron plate assembly and the insulating cover 200 in a direction parallel to the yoke iron plate 110. Moreover, there is no connection relationship between the first positioning structure and the second positioning structure. In other words, the yoke iron plate assembly and the insulating cover 200 are fixedly connected through other structures or positions, and the first positioning structure and the second positioning structure only provide the positioning function between the yoke iron plate assembly and the insulating cover 200. Through the above design, the present disclosure can use the cooperation of the first positioning structure and the second positioning structure to position the relative positions of the yoke iron plate assembly and the insulating cover 200, avoid relative movement between the insulating cover 200 and the yoke iron plate assembly, especially during the assembly process, ensure the brazing centering degree of the static assembly of the relay, avoid the static assembly from tilting to one side and causing structural interference between the moving reed and the insulating cover 200, and ensure the movement of the moving reed.

[0065] It should be noted that in some parts of this specification, such as the background art section, from the perspective of the functions of the various mechanisms of the relay, the frame piece 120 is regarded as a part of the structure that participates in forming the "static assembly" of the relay. From the perspective of the general description of the structure in the embodiment, the frame piece 120 is summarized as a part of the structure of the "yoke iron plate assembly" in the invention content section and the specific implementation section of the specification. The same frame piece 120 is included in the above-mentioned static assembly and yoke iron plate assembly, which is not contradictory.

[0066] As Figures 2 to 6 shown, in an embodiment of the present disclosure, the inner wall of the insulating cover 200 has ribs 210. The ribs 210 have a first end face facing the yoke iron plate assembly. Accordingly, the first positioning structure can be provided on the first end face. Through the above design, since there is a design in some existing solutions to use the ribs 210 to prevent the axial rotation of the moving reed during movement, the present disclosure arranges the first positioning structure by using the ribs 210, without occupying extra space and without increasing the volume of the relay. At the same time, when the first positioning structure is a hole structure (such as the following first positioning hole 211), it can also reduce the influence on the structural strength of the insulating cover 200 due to the setting of the first positioning structure.

[0067] As Figure 5As shown, based on the design of the first end face of the rib 210 of the insulating cover 200 provided with the first positioning structure, in an embodiment of the present disclosure, the first positioning structure may be a first positioning hole 211, that is, the first positioning hole 211 is opened on the first end face of the rib 210. Correspondingly, the second positioning structure may be a positioning post 130, that is, the positioning post 130 is provided on the yoke iron plate assembly. The positioning post 130 and the first positioning hole 211 are arranged in corresponding positions, and at least a part of the positioning post 130 is inserted into the first positioning hole 211.

[0068] In an embodiment of the present disclosure, the insulating cover 200 may be provided with at least two first positioning holes 211 arranged at intervals, such as but not limited to the two first positioning holes 211 shown in the drawings.

[0069] As Figure 5 shown, in an embodiment of the present disclosure, the inner wall of the insulating cover 200 may have at least two ribs 210, such as but not limited to the four ribs 210 shown in the drawings. On this basis, at least two first positioning holes 211 may be respectively located on the first end faces of different two ribs 210. Through the above design, the present disclosure can utilize the design of at least two first positioning holes 211 to achieve positioning between the yoke iron plate assembly and the insulating cover 200 at at least two different ribs 210, optimizing the positioning effect. In some embodiments, when the insulating cover 200 is provided with at least two first positioning holes 211, the at least two first positioning holes 211 may also be simultaneously arranged on the same rib 210 of the insulating cover 200, and this is not limited to this embodiment.

[0070] As Figure 5 shown, in an embodiment of the present disclosure, the yoke iron plate 110 has a first surface 1101 facing the insulating cover 200, and the insulating cover 200 is located on the first surface 1101 of the yoke iron plate 110. A first direction X parallel to the first surface 1101 and a second direction Y parallel to the first surface 1101 and perpendicular to the first direction X are defined. Accordingly, the inner wall of the insulating cover 200 includes two first wall surfaces 201 opposite to each other along the first direction X and respectively parallel to the second direction Y, and each first wall surface 201 respectively has two ribs 210 arranged at intervals along the second direction Y. On this basis, first positioning holes 211 may be respectively provided on the first end faces of two ribs 210 arranged in diagonal positions, and no first positioning holes 211 are provided on the other two ribs 210. Through the above design, the present disclosure can utilize the two first positioning holes 211 arranged in diagonal positions to achieve a relatively stable and balanced positioning effect, and at the same time can avoid too many first positioning holes 211 causing cumbersome processes or affecting the structural strength of the insulating cover 200.

[0071] As Figure 5 and Figure 6As shown, based on the design of the insulating cover 200 having at least two first positioning holes 211, in an embodiment of the present disclosure, the cross-sectional shape of the first positioning hole 211 can be oblong, the cross-sectional shape of the positioning post 130 can be circular, and the radius of the circle can be equal to (or less than) the radius of the semi-circle included at the end of the oblong shape, whereby the shape of the positioning post 130 matches that of the first positioning hole 211 and can be inserted into the first positioning hole 211. On this basis, the major axes of the oblong shapes corresponding to the cross-sectional shapes of the two first positioning holes 211 can be perpendicular to each other. Through the above design, the present disclosure can offset the tolerance of the insulating cover 200 itself and further optimize the positioning and locking effect of the matching structure between the two groups of first positioning holes 211 and the positioning post 130.

[0072] Refer to Figure 7 and Figure 8 as shown, Figure 7 Figure 9 shows a bottom view of the insulating cover 200 of a relay that can embody the principle of the present disclosure in another exemplary embodiment; Figure 8 Figure 11 shows a schematic three-dimensional structure diagram of the positioning post 130.

[0073] Different from Figure 5 and Figure 6 the design in the shown embodiment where the insulating cover 200 is provided with at least two first positioning holes 211, as Figure 7 and Figure 8 shown, in an embodiment of the present disclosure, the insulating cover 200 can be provided with only one first positioning hole 211. On this basis, the first positioning hole 211 specifically includes two spaced-apart first hole portions 2111 and a second hole portion 2112 connecting the two first hole portions 2111, and the size of the first hole portion 2111 is larger than that of the second hole portion 2112. For example, the cross-sectional shape of the first positioning hole 211 can be dumbbell-shaped. Also, the cross-sectional shape of the positioning post 130 can be the same as that of the first positioning hole 211. Through the above design, the present disclosure can reduce the number of parts and the processing difficulty, and at the same time can ensure the positioning and locking effect.

[0074] Such as Figure 6 or Figure 8 shown, in an embodiment of the present disclosure, the edge of the end of the positioning post 130 facing the insulating cover 200 can have a first chamfer structure 131. Through the above design, the present disclosure can utilize the first chamfer structure 131 to provide a guiding function during the process of inserting the positioning post 130 into the first positioning hole 211, and at the same time can reduce the wear between the positioning post 130 and the first positioning hole 211 and improve the structural life.

[0075] Refer to Figure 9 as shown, Figure 9FIG. 0 schematically shows a three-dimensional structure of an insulating cover 200 of a relay that can embody the principles of the present disclosure in yet another exemplary embodiment.

[0076] As Figure 9 shown, in an embodiment of the present disclosure, still taking the structure of the insulating cover 200 and the arrangement of the first positioning holes 211 similar to those Figure 5 shown as an example, for the two first positioning holes 211, only one of them may have an oval cross-sectional shape, and the other first positioning hole 211 may have a circular cross-sectional shape.

[0077] As Figure 2 and Figure 3 shown, in an embodiment of the present disclosure, the yoke iron plate assembly may further include a frame plate 120. The frame plate 120 is connected to the first surface 1101 of the yoke iron plate 110 facing the insulating cover 200, and the insulating cover 200 covers the side of the frame plate 120 facing away from the yoke iron plate 110.

[0078] As Figure 2 and Figure 3 shown, in an embodiment of the present disclosure, one end of the positioning post 130 facing away from the insulating cover 200 may be connected to the yoke iron plate 110. Accordingly, the positioning post 130 is inserted and cooperated with the first positioning hole 211 through the opening of the frame plate 120. Through the above design, the present disclosure can achieve the following specific assembly process: assembling the static contact 410, the insulating cover 200 and the frame plate 120 to form the static assembly of the relay, connecting the positioning post 130 to the yoke iron plate 110, and then connecting the yoke iron plate 110 to the static assembly. Among them, in this embodiment, the connection between the above components of the static assembly and the connection between the static assembly and the yoke iron plate 110 can both adopt a brazing process, whereby the connection tightness between the above components can be ensured. In some embodiments, when one end of the positioning post 130 facing away from the insulating cover 200 is connected to the yoke iron plate 110, the assembly of the yoke iron plate assembly and the insulating cover 200 can also adopt other processes, such as first connecting the yoke iron plate 110 to the frame plate 120 and then connecting the frame plate 120 to the insulating cover 200, which is not limited thereto.

[0079] As Figure 4 shown, based on the design that one end of the positioning post 130 facing away from the insulating cover 200 is connected to the yoke iron plate 110, in an embodiment of the present disclosure, the first surface 1101 of the yoke iron plate 110 may be provided with a second positioning hole 111, and the positioning post 130 may be a positioning pin (i.e., a column pin structure with both ends respectively cooperating with positioning holes). One end of the positioning pin facing away from the insulating cover 200 is inserted into the second positioning hole 111. In some embodiments, when one end of the positioning post 130 facing away from the insulating cover 200 is connected to the yoke iron plate 110, the positioning post 130 and the yoke iron plate 110 may also be an integral structure, which is not limited to the above embodiments.

[0080] As Figure 6 shown, based on the design in which the second positioning hole 111 is provided on the first surface 1101 and the positioning post 130 is inserted into the second positioning hole 111, in an embodiment of the present disclosure, the edge of the end of the positioning post 130 facing the yoke iron plate assembly may have a second chamfer structure 132. Through the above design, the present disclosure can utilize the second chamfer structure 132 to provide a guiding function during the process of inserting the positioning post 130 into the second positioning hole 111, and at the same time can reduce the wear between the positioning post 130 and the second positioning hole 111, improving the structural life.

[0081] Based on the design in which the second positioning hole 111 is provided on the first surface 1101, in an embodiment of the present disclosure, the second positioning hole 111 may be a blind hole, and the blind hole may be formed by stamping the yoke iron plate 110, whereby a protrusion is formed at the position corresponding to the second positioning hole 111 on the second surface of the yoke iron plate 110 facing away from the frame piece 120.

[0082] Based on the design in which the yoke iron plate 110 forms a protrusion on the second surface due to the provision of the second positioning hole 111, in an embodiment of the present disclosure, the relay proposed by the present disclosure further includes a metal shell 300, the metal shell 300 is connected to the second surface of the yoke iron plate 110, and at least two positioning protrusions are provided on the second surface, and these positioning protrusions respectively abut against the periphery of the end of the metal shell 300 connected to the yoke iron plate 110, thereby realizing the positioning of the metal shell 300 and the yoke iron plate 110 in a direction parallel to the second surface. On this basis, at least one positioning protrusion may be the above-mentioned protrusion formed corresponding to the second positioning hole 111. Through the above design, the present disclosure can utilize the protrusion formed due to the provision of the second positioning hole 111 to realize the positioning of the metal shell 300, which can reduce or eliminate the need for additional positioning structures, with a clever structure and conducive to reducing the processing difficulty of components.

[0083] Referring to Figure 10 and Figure 11 shown, Figure 10 FIG. shows a partial cross-sectional view of a part of the structure of a relay that can embody the principle of the present disclosure in yet another exemplary embodiment; Figure 11 FIG. shows a top view of the yoke iron plate assembly.

[0084] Different from Figures 2 to 4 the design in the embodiment shown in which the positioning post 130 is connected to the yoke iron plate 110, as Figure 10 and Figure 11As shown, in an embodiment of the present disclosure, one end of the positioning post 130 facing away from the insulating cover 200 can also be connected to the frame piece 120 in the yoke iron plate assembly. Specifically, the frame piece 120 has a plurality of frame edges 121, and the plurality of frame edges 121 enclose an opening of the frame piece 120. Among them, the inner wall of the frame edge 121 has a protruding portion 122, the protruding portion 122 protrudes along a direction parallel to the first surface 1101, and the position of the protruding portion 122 is arranged corresponding to the position of the rib 210. The positioning post 130 (i.e., the second positioning structure) is arranged on the second end face of the protruding portion 122 facing the insulating cover 200. Through the above design, the present disclosure can realize the relative positioning of the frame piece 120 and the insulating cover 200, thereby indirectly realizing the relative positioning of the insulating cover 200 and the yoke iron plate 110.

[0085] It should be noted that when the insulating cover 200 has a plurality of ribs 210 and only a part of the ribs 210 are provided with the first positioning holes 211, the frame piece 120 can be provided with only the protruding portions 122 respectively corresponding to the ribs 210 provided with the first positioning holes 211. That is, for the ribs 210 without the first positioning holes 211, the frame piece 120 may not be correspondingly provided with the protruding portions 122.

[0086] As Figure 10 shown, based on the design that one end of the positioning post 130 facing away from the insulating cover 200 is connected to the frame piece 120, in an embodiment of the present disclosure, the positioning post 130 and the frame piece 120 can be an integral structure. In some embodiments, a third positioning hole can be provided on the second end face of the protruding portion 122 of the frame piece 120, and the positioning post 130 (i.e., the second positioning structure) can be a positioning pin, and one end of the positioning pin facing away from the insulating cover 200 is inserted into the third positioning hole. In some embodiments, the second positioning structure can also adopt other structures, for example, it can be a positioning post that is a split structure with the frame piece 120.

[0087] As Figure 11 shown, based on the design that one end of the positioning post 130 facing away from the insulating cover 200 is connected to the frame piece 120, in an embodiment of the present disclosure, a fourth positioning hole 112 can be provided on the first surface 1101 of the yoke iron plate 110, and the fourth positioning hole 112 is located at a position of the yoke iron plate 110 corresponding to the edge of the frame piece 120. Accordingly, during the assembly process of the yoke iron plate 110 and the frame piece 120, a tooling positioning post (different from the above-mentioned positioning post 130, and this working positioning post can be removed after the assembly is completed) can be inserted into the fourth positioning hole 112, so as to realize the positioning during the assembly of the yoke iron plate 110 and the frame piece 120.

[0088] It should be noted that in the above-mentioned multiple embodiments, when there are at least two positioning posts 130 and the first positioning holes 211, the specific connection positions or connection forms of the ends of the positioning posts 130 facing away from the insulating cover 200 and the yoke iron plate assembly may not be exactly the same. For example, at least one of the positioning posts 130 may have its end facing away from the insulating cover 200 connected to the yoke iron plate 110, and at least one of the positioning posts 130 may have its end facing away from the insulating cover 200 connected to the frame piece 120. Another example is that for at least two positioning posts 130 respectively connected to the yoke iron plate 110, at least one of the positioning posts 130 may be inserted and mated with the second positioning hole 111 of the yoke iron plate 110, and at least one of the positioning posts 130 may be integrally structured with the yoke iron plate 110, all of which are not limited to the above-mentioned embodiments described in this specification.

[0089] In an embodiment of the present disclosure, the yoke iron plate assembly is connected to the insulating cover by brazing.

[0090] In an embodiment of the present disclosure, the relay proposed by the present disclosure may further include a housing, a base, a pair of static contacts 410, an arc extinguishing part, a moving assembly, and a magnetic circuit part. Among them, the housing and the base are connected and form a chamber for accommodating the insulating cover 200, at least part of the static contacts 410, the arc extinguishing part, the moving assembly, and the magnetic circuit part.

[0091] As Figure 1 shown, in an embodiment of the present disclosure, a pair of static contacts 410 are installed on the top of the insulating cover 200. At least part of each static contact 410 is located inside the insulating cover 200, and a static contact point is further provided at the bottom of each static contact 410. The housing is provided with two openings corresponding to the top of the insulating cover 200, and a pair of static contacts 410 extend out of the outer surface of the housing through the two openings. One static contact 410 serves as the terminal for current inflow, and the other static contact 410 serves as the terminal for current outflow.

[0092] As Figure 1 shown, in an embodiment of the present disclosure, the insulating cover 200 may be made of ceramic material, that is, the insulating cover 200 may be a ceramic cover, but not limited thereto. For example, in other embodiments, the insulating cover 200 may also be made of plastic material.

[0093] As Figure 1 shown, in an embodiment of the present disclosure, the insulating cover 200 is connected to the yoke iron plate 110 through the frame piece 120. The frame piece 120 may be a metal piece with a ring structure, such as iron-nickel alloy. One end of the frame piece 120 is connected to the opening edge of the insulating cover 200. The other end of the frame piece 120 is connected to the yoke iron plate 110. A frame piece 120 is arranged between the insulating cover 200 and the yoke iron plate 110, which facilitates the connection between the insulating cover 200 and the yoke iron plate 110.

[0094] In an embodiment of the present disclosure, the moving component is movably disposed in the chamber formed by the housing and the base. The moving component includes a moving contact, a first elastic member, and a push rod member. Among them, the moving contact is disposed in the insulating cover 200, and both ends of the moving contact are respectively used to contact or separate from the bottoms of a pair of static contacts 410.

[0095] In an embodiment of the present disclosure, the moving contact may include a contact body and two moving contacts. The moving contacts may be separate parts, and the two moving contacts are connected to both ends of the contact body. Of course, in other embodiments, the two moving contacts may also be integrally formed at both ends of the contact body. In addition, the moving contacts may protrude from the surface of the contact body facing the static contact 410, or may be flush with the surface of the contact body facing the static contact 410.

[0096] In an embodiment of the present disclosure, the push rod member movably passes through the first through hole of the yoke iron plate 110, and a part of the push rod member extends out of the surface of the yoke iron plate 110 facing the static contact 410, and a part of the push rod member extends out of the surface of the yoke iron plate 110 facing away from the static contact 410.

[0097] The moving contact is movably mounted on the part of the push rod member extending out of the surface of the yoke iron plate 110 facing the static contact 410. The first elastic member is connected between the push rod member and the moving contact, and is used to apply an elastic force to the moving contact in the direction towards the static contact 410 to provide contact pressure.

[0098] As Figure 1 shown, in an embodiment of the present disclosure, a metal shell 300 is further covered on the surface of the yoke iron plate 110 facing away from the static contact 410, and the metal shell 300 covers the first through hole of the yoke iron plate 110. Among them, the part of the push rod member extending out of the surface of the yoke iron plate 110 facing away from the static contact 410 is inserted into the metal shell 300.

[0099] In an embodiment not illustrated in the present disclosure, the magnetic circuit part includes a moving iron core, a static iron core, a coil bobbin, and a coil. The coil bobbin is in a hollow cylindrical shape and is made of an insulating material. The coil bobbin is located on the side of the yoke iron plate 110 facing away from the static contact 410 and surrounds the outer periphery of the metal shell 300. The coil is wound around the outer periphery of the coil bobbin.

[0100] In an embodiment not illustrated in the present disclosure, the static iron core is fixedly disposed in the metal shell 300, and a part of the static iron core is inserted into the first through hole. The static iron core has a second through hole, and the position of the second through hole corresponds to that of the first through hole, so that the push rod member can movably pass through the first through hole and the second through hole. The moving iron core is movably disposed in the metal shell 300 and is disposed opposite to the static iron core. The moving iron core is connected to the push rod member and is used to be attracted by the static iron core when the coil is energized. The moving iron core and the push rod member may be connected by screwing, riveting, welding or other means.

[0101] In an embodiment not illustrated in the present disclosure, the magnetic circuit portion further includes a second elastic member, which is located inside the metal case 300 and is disposed between the static iron core and the moving iron core, and is configured to reset the moving iron core when the coil is powered off.

[0102] It should be noted that when the coil is powered on, the static iron core attracts the moving iron core to move upward, and the moving iron core can drive the push rod member to move upward. When the moving contact contacts the static contact 410, the moving contact is blocked by the static contact 410, while the push rod member will still continue to move upward until the over-travel is completed.

[0103] During the over-travel process, the first elastic member can provide an elastic force to the moving contact after being squeezed by the push rod member to provide contact pressure.

[0104] It should be noted here that the relays shown in the drawings and described in this specification are only a few examples of the many relays that can adopt the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details or any components of the relays shown in the drawings or described in this specification.

[0105] In summary, the relay proposed by the present disclosure includes a yoke iron plate assembly and an insulating cover 200. The yoke iron plate assembly includes a yoke iron plate 110, and the insulating cover 200 covers the yoke iron plate assembly. The insulating cover 200 is provided with a first positioning structure, and the yoke iron plate assembly is provided with a second positioning structure, and the first positioning structure and the second positioning structure are in positioning cooperation. Through the above design, the present disclosure can utilize the first positioning structure and the second positioning structure to position the relative positions of the yoke iron plate assembly and the insulating cover 200 in the direction parallel to the yoke iron plate 110, avoid relative crosstalk between the insulating cover 200 and the yoke iron plate assembly, especially during the assembly process, ensure the brazing centering degree of the static assembly of the relay, avoid the static assembly from tilting to one side and causing structural interference between the moving reed and the insulating cover 200, and ensure the movement of the moving reed.

[0106] Exemplary embodiments of the relay proposed by the present disclosure have been described and / or illustrated in detail above. However, the embodiments of the present disclosure are not limited to the specific embodiments described herein. On the contrary, the components and / or steps of each embodiment can be used independently and separately from the other components and / or steps described herein. Each component and / or each step of one embodiment can also be used in combination with the other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated herein, the terms "a", "an", and "the above" etc. are used to indicate the existence of one or more elements / components / etc. The terms "comprising", "including", and "having" are used to mean an open inclusion and refer to the existence of additional elements / components / etc. in addition to the listed elements / components / etc. Furthermore, the terms "first", "second", etc. in the claims and the specification are only used as labels and are not numerical limitations on their objects.

[0107] Although the relay proposed by the present disclosure has been described in accordance with different specific embodiments, those skilled in the art will recognize that modifications can be made to the embodiments of the present disclosure within the spirit and scope of the claims.

Claims

1. A relay, characterized in that, It includes a yoke iron plate assembly and an insulating cover. The yoke iron plate assembly includes a yoke iron plate, and the insulating cover covers the yoke iron plate assembly. Among them, the insulating cover is provided with a first positioning structure, and the yoke iron plate assembly is provided with a second positioning structure. The first positioning structure and the second positioning structure are in positioning cooperation to position the relative positions of the yoke iron plate assembly and the insulating cover in a direction parallel to the yoke iron plate.

2. The relay according to claim 1, characterized in that, The inner wall of the insulating cover has ribs, and the ribs have a first end face facing the yoke iron plate assembly, and the first positioning structure is arranged on the first end face.

3. The relay according to claim 2, wherein The first positioning structure is a first positioning hole, and the second positioning structure is a positioning post. The positioning post and the first positioning hole are arranged in corresponding positions, and at least part of the positioning post is inserted into the first positioning hole.

4. The relay according to claim 3, characterized in that, The inner wall of the insulating cover has at least two ribs, and at least two first positioning holes are respectively located on the first end faces of different two ribs.

5. The relay according to claim 4, wherein, The yoke iron plate has a first surface facing the insulating cover, and the insulating cover is located on the first surface. A first direction parallel to the first surface and a second direction parallel to the first surface and perpendicular to the first direction are defined. The inner wall of the insulating cover includes two first wall surfaces opposite to each other along the first direction and respectively parallel to the second direction, and each first wall surface has two ribs arranged at intervals along the second direction. Among them, the first positioning holes are respectively arranged on the first end faces of two ribs arranged in diagonal positions, and the other two ribs are not provided with the first positioning holes.

6. The relay according to claim 4, wherein The cross-sectional shape of the first positioning hole is an oval, and the cross-sectional shape of the positioning post is circular. The radius of the circle is equal to the radius of the semi-circle included at the end of the oval. Among them, the long axes of the ovals corresponding to the cross-sectional shapes of the two first positioning holes are perpendicular to each other.

7. The relay according to claim 1, characterized in that, The insulating cover is provided with one first positioning hole. The first positioning hole includes two first hole parts spaced apart from each other and a second hole part connected between the two first hole parts. The cross-sectional shape of the positioning post is the same as the cross-sectional shape of the first positioning hole.

8. The relay according to claim 1, characterized in that, The edge of the end of the positioning post facing the insulating cover has a first chamfer structure.

9. The relay according to any one of claims 3 to 8, characterized in that, The yoke iron plate assembly further includes a frame piece, and the frame piece is connected to the first surface of the yoke iron plate facing the insulating cover, and the insulating cover is located on the side of the frame piece facing away from the yoke iron plate.

10. The relay according to claim 9, characterized in that, The end of the positioning post facing away from the insulating cover is connected to the yoke iron plate, and the positioning post passes through the opening of the frame piece and is inserted and matched with the first positioning hole.

11. The relay according to claim 10, wherein, The first surface is provided with a second positioning hole, the positioning post is a positioning pin, and the end of the positioning pin facing away from the insulating cover is inserted into the second positioning hole.

12. The relay according to claim 11, characterized in that, The edge of the end of the positioning post facing the yoke iron plate assembly has a second chamfer structure.

13. The relay according to claim 10, characterized in that, The second positioning hole is a blind hole, and the blind hole is formed by stamping the yoke iron plate, so that a protrusion is formed at the position corresponding to the second positioning hole on the second surface of the yoke iron plate facing away from the frame piece.

14. The relay according to claim 13, characterized in that, It further includes a metal shell, the metal shell is connected to the second surface of the yoke iron plate, at least two positioning protrusions are arranged on the second surface, and at least two of the positioning protrusions respectively abut against the periphery of one end of the metal shell connected to the yoke iron plate for positioning the metal shell; wherein, at least one of the positioning protrusions is the protrusion formed corresponding to the second positioning hole.

15. The relay according to claim 10, wherein: The positioning post and the yoke iron plate are of an integral structure; or The positioning post and the yoke iron plate are of a split structure.

16. The relay according to any one of claims 1 to 7, characterized in that, The yoke iron plate assembly further includes a frame piece, the frame piece is connected to the first surface of the yoke iron plate facing the insulating cover, and the insulating cover is located on the side of the frame piece away from the yoke iron plate; wherein, the inner wall of the insulating cover has ribs, the ribs have a first end face facing the yoke iron plate assembly, and the first positioning structure is arranged on the first end face; wherein, the frame piece has a plurality of frame edges, the plurality of frame edges enclose an opening of the frame piece, the inner wall of the frame edge has a protrusion protruding parallel to the first surface, and the position of the protrusion is arranged corresponding to the position of the rib, and the second positioning structure is arranged on the second end face of the protrusion facing the insulating cover.

17. The relay according to claim 16, wherein: A third positioning hole is arranged on the second end face, the second positioning structure is a positioning pin, and one end of the positioning pin facing away from the insulating cover is inserted into the third positioning hole; or The second positioning structure is a positioning post, and the positioning post and the frame piece are of an integral structure.

18. The relay according to claim 16, characterized in that, A fourth positioning hole is arranged on the first surface, the fourth positioning hole is located at the position of the yoke iron plate corresponding to the edge of the frame piece, and the fourth positioning hole is used for positioning during the assembly process of the yoke iron plate and the frame piece through a tooling positioning post inserted into the fourth positioning hole.

19. The relay according to claim 1, wherein The yoke iron plate assembly is connected to the insulating cover by brazing.

Images