Base assembly of relay, and relay

Abstract

The present application relates to a base assembly of a relay, and a relay. The base assembly of a relay comprises a base (1) and a support member (3). The base (1) comprises a base body (12) and two limiting portions (11), the two limiting portions (11) being arranged on the base body (12), and the two limiting portions (11) being spaced apart in a first direction. The support member (3) is arranged on the side of the base body (12) having the limiting portions (11) and is located between the two limiting portions (11); the support member (3) comprises a support plate (31) and two flanged structures (32); the two flanged structures (32) are both arranged on the support plate (31); the two flanged structures (32) are respectively located on two opposite sides of the support plate (31) in the first direction; the two flanged structures (32) respectively correspond to the two limiting portions (11) on a one-to-one basis; and the flanged structures (32) abut against the corresponding limiting portions (11).

Description

Relay base assembly and relay

[0001] This application claims priority to Chinese patent application No. 202520555461.9, filed on March 27, 2025, entitled “Base assembly of relay and relay”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electrical control device technology, and in particular to a relay base assembly and a relay. Background Technology

[0003] Some relays include a base and a housing, with the housing encased on the base. The base and housing are sealed together with an epoxy resin-based adhesive, which requires high-temperature baking to cure.

[0004] However, the relays in the related technology have the following shortcomings: due to the thin structure of the base, the epoxy resin will deform inward during the high-temperature curing process, causing the position of the components on the base (such as static contacts or coil assemblies) to change accordingly, resulting in large fluctuations in the relay parameters. Summary of the Invention

[0005] According to various embodiments of this application, a base assembly for a relay and a relay are provided.

[0006] On the one hand, a relay base assembly is provided.

[0007] A base, the base including a seat body and a limiting part, the limiting part being disposed on the seat body, the limiting part having two parts, the two limiting parts being spaced apart along a first direction;

[0008] A support component is disposed on one side of the base body having the limiting portion and located between the two limiting portions. The support component includes a support plate and two flange structures. The two flange structures are disposed on the support plate and are respectively located on opposite sides of the support plate in the first direction. The two flange structures correspond one-to-one with the two limiting portions, and the flange structure abuts against the corresponding limiting portion.

[0009] On the other hand, this application also provides a relay, including a housing and the aforementioned base assembly, the housing being disposed on the base body. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0011] Figure 1 is a perspective view of a relay in some embodiments of this application (the armature assembly has been removed from the figure).

[0012] Figure 2 is a top view of the relay shown in Figure 1.

[0013] Figure 3 is a cross-sectional view along the AA direction in Figure 2.

[0014] Figure 4 is a top view of the base assembly in some embodiments of this application.

[0015] Figure 5 is a perspective view of the support component in some embodiments of this application.

[0016] Figure 6 is a perspective view of the coil assembly and support components in some other embodiments of this application (the flange structure is not shown in the figure).

[0017] Figure 7 is a perspective view of the coil frame and support components in some other embodiments of this application (the flange structure and coil are not shown in the figure).

[0018] Figure 8 is a structural diagram of the flange and magnetic conductor in some other embodiments of this application.

[0019] In the diagram: 1. Base; 11. Limiting part; 12. Seat body; 13. Groove; 2. Contact assembly; 21. Stationary contact; 22. Moving contact; 3. Supporting component; 31. Support plate; 32. Flanged structure; 33. First limiting component; 331. Connecting hole; 34. Second limiting component; 341. Limiting block; 35. Gap; 4. Coil assembly; 41. Coil; 42. Flange; 43. Magnetic conductor; 44. Insulating layer; 6. Insulating barrier. Detailed Implementation

[0020] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0021] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0022] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0026] Referring to Figures 1, 2, and 3, Figure 1 shows a perspective view of a relay in some embodiments of this application (the armature assembly is removed from the figure), Figure 2 is a top view of the relay shown in Figure 1, and Figure 3 is a cross-sectional view along direction AA in Figure 2. One embodiment of this application provides a base assembly (hereinafter referred to as the base assembly) for a relay used in a relay. The relay includes a housing and the base assembly.

[0027] The base assembly includes a base 1 and a support component 3. The base 1 includes a seat body 12 and limiting portions 11, which are disposed on the seat body 12. There are two limiting portions 11, spaced apart along a first direction, and their outer shells cover the seat body 12. The support component 3 is disposed on the side of the seat body 12 with the limiting portions 11, and is located between the two limiting portions 11. The support component 3 includes a support plate 31 and two flange structures 32, both of which are disposed on the support plate 31. The two flange structures 32 are located on opposite sides of the support plate 31 in the first direction, and each flange structure 32 corresponds to one of the two limiting portions 11, with the flange structure 32 abutting against its corresponding limiting portion 11. In this embodiment, the first direction is the width direction of the base 1, i.e., the direction indicated by arrow X in the figure.

[0028] Two limiting parts 11 are provided on the base 12, and the two limiting parts 11 are distributed along the width direction of the base 1. The support member 3 is located between the two limiting parts 11. The flange structure 32 on the support member 3 abuts against the two limiting parts 11 one by one, so that the support member 3 can support the base 1 along the width direction of the base 1, thereby preventing the base 1 from deforming inward when heated. Flanged structures 32 are provided on opposite sides of the support plate 31. The flanged structures 32 can increase the overall height of the support member 3, thereby ensuring the height of the support member 3 supporting the base 1, which is beneficial to improving the support effect of the support member 3 on the base 1.

[0029] Referring to Figure 1, the relay also includes a contact assembly 2, a coil assembly 4, and an armature assembly (not shown in the figure). The contact assembly 2 includes a stationary contact 21 and a moving contact 22. The moving contact 22 is used to contact the stationary contact 21. The stationary contact 21 and the coil assembly 4 are both disposed on the side of the base 1 with the limiting part 11. The armature assembly is linked to the moving contact 22. When the electromagnetic force of the coil assembly 4 changes, it can drive the armature assembly to move and drive the moving contact 22 to contact or separate from the stationary contact 21.

[0030] With the cooperation of the support plate 31, the flange structure 32 and the limiting part 11, the relay of this structure can effectively prevent the base 1 from being concave and deformed, reduce the risk of the position of the components on the base 1 (such as the stationary contact 21 and the coil assembly 4) changing due to the deformation of the base 1, thereby reducing the fluctuation of the relay parameters and making the relay have good stability.

[0031] When the relay includes a housing, the housing covers the base 12, and a cavity is formed between the housing and the base 12. The contact assembly 2, the coil assembly 4 and the armature assembly are all located in the cavity.

[0032] Referring to Figures 3 and 4, a groove 13 is provided on one side of the base 12 with the limiting part 11. The groove 13 is used to accommodate the support member 3. The groove wall of the groove 13 in the first direction is the limiting part 11, so that the two flange structures 32 can respectively abut against the two opposite groove walls of the groove 13 in the first direction, ensuring that the support member 3 and the base 1 have sufficient contact area. This helps to disperse the contact stress between the base 1 and the support member 3 and reduces the risk of local deformation of the base 1 and the support member 3.

[0033] Referring to Figure 3, the support plate 31 is located at the bottom of the groove 13, and the flange structure 32 extends towards the opening of the groove 13 from the end away from the support plate 31. This allows the support plate 31 to be as close as possible to the bottom of the groove 13, preventing a large gap between the support plate 31 and the base 12 due to the presence of the flange structure 32, thus improving the compactness of the relay's internal structure. Of course, in some other embodiments, the flange structure 32 can also be configured such that the end away from the support plate 31 extends towards the bottom of the groove 13, while the support plate 31 is positioned close to the opening of the groove.

[0034] In practical implementation, when the base 12 is provided with a groove 13, one or two protrusions can also be provided on the same groove wall of the groove 13 in the first direction. In this case, one or more protrusions on the same groove wall of the groove 13 in the first direction serve as limiting parts 11. When the groove 13 has two or more protrusions on the same groove wall in the first direction, the protrusions on the same groove wall can be distributed at intervals along the length 1 of the base. In this case, the limiting part 11 is a split structure composed of multiple protrusions. That is, in practical implementation, the limiting part 11 can be a split structure or an integral structure.

[0035] In addition, in actual implementation, a protrusion, such as a protrusion, rib, or plate, can be provided on one side of the seat 12 as a limiting part 11. In this case, it is not necessary to provide a groove 13 on the seat 12, and the structure of the limiting part 11 is not specifically limited here.

[0036] Referring to Figures 1, 2, and 3, the contact assembly 2 and the groove 13 are spaced apart along a first direction. The contact assembly 2 is used for electrical connection with an external load circuit. In actual implementation, the stationary contact 21 of the contact assembly 2 is connected to the load circuit. When the electromagnetic force of the coil assembly 4 causes the moving contact 22 to contact the stationary contact 21, the contact assembly 2 achieves electrical connection with the load circuit. The relay also includes an insulating barrier 6, which surrounds the groove end of the groove 13. The coil assembly 4 is disposed in the area surrounded by the insulating barrier 6. By placing the coil assembly 4 in the area surrounded by the insulating barrier 6, which is an insulator, an insulating barrier is formed between the stationary contact 21 and the coil assembly 4, reducing the risk of the coil assembly 4 being electrically conductive by the load circuit. When the relay includes a housing, the insulating barrier 6 is disposed in the cavity between the housing and the base 12.

[0037] In this embodiment, the contact component 2 has two sets, which are distributed at intervals along the first direction. The groove 13 and the insulating barrier 6 are both located between the two sets of contact components 2. The moving contact 22 is used to electrically connect with the stationary contact 21 in the same set. The stationary contact 21 in both sets of contact components 2 are connected to the load circuit. When the moving contact 22 in the two sets of contact components 2 makes contact with the stationary contact 21 in the same set of contact components 2 respectively, the load circuit is turned on.

[0038] Among them, the support component 3 is a yoke iron, which can not only support the base 1, but also increase the driving force of the coil assembly 4 on the armature assembly, thereby improving the efficiency of the coil assembly 4. It is not necessary to separately set the support component 3 and the yoke iron on the base 1, which helps to reduce the space occupied on the base 1 and also saves the materials used in the manufacture of the relay.

[0039] Of course, in other embodiments, the support member 3 may be made of other materials, such as an insulator. There are no specific restrictions on the material of the support member 3.

[0040] Referring to Figures 1, 2, and 3, in the case where the relay includes an armature assembly, the armature assembly is connected to the base 1, and at least a portion of the armature assembly is located outside the insulating barrier 6. The stationary contact 21 of the contact assembly 2 is disposed on the base 12, and the moving contact 22 is linked to the armature assembly. When the electromagnetic force of the coil assembly 4 changes, it can drive the armature assembly to move relative to the insulating barrier 6, and cause the moving contact 22 to contact or separate from the stationary contact 21 in the same group of contact assemblies 2. In this embodiment, when the coil assembly 4 is supplied with positive and reverse pulse voltages, the armature assembly can rotate relative to the base 1 around the pivot under the action of positive and reverse electromagnetic forces, thereby causing the armature assembly to move relative to the insulating barrier 6. During the movement, the armature assembly can push the moving contact 22 toward the stationary contact 21 until it contacts the stationary contact 21, or push the moving contact 22 away from the stationary contact 21 until it separates from the stationary contact 21.

[0041] Referring to Figure 3, the insulating barrier 6 and the base 12 are an integral structure, with the base 12 being an insulating component. The insulating barrier 6 and the base 12 are integrally injection molded, reducing the assembly process between the insulating barrier 6 and the base 12. In addition, it can ensure that there are no gaps at the connection between the insulating barrier 6 and the base 12, preventing the voltage on the stationary contact 21 or the moving contact 22 located outside the insulating barrier 6 from creeping onto the coil assembly 4 through the gap between the insulating barrier 6 and the base 12, thereby effectively improving the insulation barrier performance of the insulating barrier 6.

[0042] Referring to Figures 5 and 6, the support component 3 further includes two limiting members, both of which are connected to the support plate 31. The two limiting members are spaced apart along a second direction, with at least a portion of each limiting member protruding from the side of the support plate 31 facing away from the base 12. The coil assembly 4 includes a coil frame, at least a portion of which is disposed between the two limiting members. The second direction forms an angle with the first direction. In this embodiment, the second direction is perpendicular to the first direction. The first direction is the width direction of the base 1, i.e., the direction indicated by arrow X in the figure, and the second direction is the length direction of the base 1, i.e., the direction indicated by arrow Y in the figure. By providing two limiting members on the support plate 31, the movement of the coil frame along the second direction can be restricted by the interaction of the two limiting members.

[0043] The coil frame includes two flanges 42, which are spaced apart along a second direction and form a winding window between the two flanges 42. The support plate 31 is located on one side of the winding window. At least one limiting member has a gap 35 with the flange structure 32. At least one limiting member has a gap 35 with the flange structure 32, and a portion of at least one flange 42 is disposed in the gap 35.

[0044] For example, there is a gap 35 between the two limiting members and the flange structure 32, and the two flanges 42 correspond one-to-one with the two limiting members. Part of the flange 42 is disposed in the gap 35 on one side of the corresponding limiting member.

[0045] The gap 35 between the limiting member and the flange structure 32 has the following two functions: on the one hand, the gap 35 avoids the flange 42 of the coil frame, further improving the compactness of the internal structure of the relay; on the other hand, the space reserved on both sides of the support plate 31 is used to form the flange structure 32 by flanges on both sides of the support plate 31 in the first direction.

[0046] Referring to Figures 5 and 6, when the support component 3 includes two limiting members, one of the limiting members is a first limiting member 33, and the other is a second limiting member 34. The first limiting member 33 is provided with a connecting hole 331, and one end of the magnetic conductor 43 passes through one of the flanges 42 and is inserted into the connecting hole 331, so that the support component 3 is connected to the coil assembly 4. The second limiting member 34 includes two limiting blocks 341, which are respectively disposed on both sides of the support plate 31 in the first direction, and the pole face of the magnetic conductor 43 is located between the two limiting blocks 341.

[0047] It is understandable that the magnitude of the electromagnetic force generated by coil assembly 4 is related to the ampere-turns of coil 41. Under the condition of constant current, the larger the ampere-turns of coil 41, the stronger the magnetic field generated by coil assembly 4. Therefore, in relay, the number of turns of coil 41 is an important factor affecting the electromagnetic force generated by coil assembly 4.

[0048] In some embodiments, referring to Figures 6, 7, and 8, when the relay includes a coil assembly 4, the coil assembly 4 includes a magnetic conductor 43, a coil 41, and a coil frame. The coil frame includes two flanges 42 spaced apart along a second direction, which forms an angle with the second direction. In this embodiment, the second direction is perpendicular to the first direction, which is the width direction of the base 1 (indicated by arrow X in the figure), and the second direction is the length direction of the base 1 (indicated by arrow Y in the figure). The coil 41 is enameled wire, located between the two flanges 42, and wound around the outer periphery of the magnetic conductor 43, so that the coil 41 is directly wound on the magnetic conductor 43. This structure of the relay eliminates the insulation layer 44 in the winding window of the coil frame, increasing the space for winding the coil 41 within the limited space of the relay. This is beneficial for increasing the ampere-turns of the coil 41, improving the magnetic conductivity of the coil 41 and the magnetic conductor 43, and enhancing the magnetic holding force of the relay, thereby improving the stability of the relay.

[0049] In this embodiment, the outer contour of the cross-section of the magnetic conductor 43 is circular. In this specification, the cross-section of the magnetic conductor 43 refers to the cross-section formed by cutting the magnetic conductor 43 along the first direction. Setting the outer contour of the cross-section of the magnetic conductor 43 to be circular avoids breakage of the coil 41 due to sharp edges on the outer contour of the magnetic conductor 43. Furthermore, setting the outer contour of the cross-section of the magnetic conductor 43 to be circular also increases the space for winding the coil 41, which is beneficial for increasing the ampere-turns of the coil 41.

[0050] Of course, in other embodiments, the outer contour of the cross-section of the magnetic conductor 43 can also be set to be elliptical or rectangular, etc.

[0051] In order to reduce the assembly process of the magnetic conductor 43 and the flange 42, the magnetic conductor 43 and the flange 42 are set as an integral structure in this embodiment. In actual implementation, the magnetic conductor 43 and the flange 42 are integrally injection molded, which can effectively reduce the risk of the magnetic conductor 43 and the flange 42 becoming loose.

[0052] Of course, in other embodiments, referring to FIG3, an insulating layer 44 may be provided on the outer periphery of the magnetic conductor 43, and the coil 41 may be wound on the insulating layer 44.

[0053] In this embodiment, the magnetic conductor 43 is an iron core. Of course, the magnetic conductor 43 is not limited to an iron core. In other embodiments, the magnetic conductor 43 can also be ferrite or steel core, etc.

[0054] It should be noted that in actual implementation, the distribution direction of the two limiting parts 11 can be flexibly adjusted as needed. For example, the two limiting parts 11 can be set to be distributed at intervals along the length direction of the base 1, so that the supporting member 3 supports the base 1 along the length direction of the base 1. Here, no specific restriction is made on the distribution direction of the two limiting parts 11.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A relay base assembly, characterized in that, include: A base, the base including a seat body and a limiting part, the limiting part being disposed on the seat body, the limiting part having two parts, the two limiting parts being spaced apart along a first direction; A support component is disposed on one side of the base body having the limiting portion and located between the two limiting portions. The support component includes a support plate and two flange structures. The two flange structures are disposed on the support plate and are respectively located on opposite sides of the support plate in the first direction. The two flange structures correspond one-to-one with the two limiting portions, and the flange structure abuts against the corresponding limiting portion.

2. The relay base assembly according to claim 1, characterized in that, The seat body has a groove on one side with the limiting part, the groove is used to accommodate the support member, and the groove wall in the first direction is the limiting part.

3. The relay base assembly according to claim 2, characterized in that, The support plate is located at the bottom of the groove, and the flange structure extends from the end away from the support plate toward the opening of the groove.

4. A relay, characterized in that, It includes a housing and a base assembly as described in any one of claims 1 to 3, wherein the housing is disposed on the base body.

5. The relay according to claim 4, characterized in that, It also includes a coil assembly, an insulating barrier, and a contact assembly. The contact assembly is used for electrical connection with an external load circuit. The grooves in the contact assembly and the base assembly are spaced apart along the first direction. The insulating barrier surrounds the slot end of the groove. The coil assembly is disposed in the area surrounded by the insulating barrier.

6. The relay according to claim 5, characterized in that, The coil assembly is disposed on the side of the support plate facing the slot, and the coil assembly is located between the two flange structures.

7. The relay according to claim 5, characterized in that, It also includes an armature assembly, at least a portion of which is located outside the insulating barrier. The contact assembly includes a moving contact and a stationary contact. The stationary contact is disposed on the base, and the moving contact is used to contact the stationary contact. The moving contact is linked to the armature assembly. When the electromagnetic force of the coil assembly changes, it can drive the armature assembly to move relative to the insulating barrier and cause the moving contact to contact or separate from the stationary contact.

8. The relay according to claim 5, characterized in that, The insulating barrier and the base are an integral structure.

9. The relay according to claim 5, characterized in that, The support component further includes two limiting members, both of which are connected to the support plate. The two limiting members are spaced apart along a second direction. At least a portion of each limiting member protrudes from the side of the support plate facing away from the base. The coil assembly includes a coil frame, at least a portion of which is disposed between the two limiting members. The second direction forms an angle with the first direction.

10. The relay according to claim 9, characterized in that, The coil frame includes two flanges, which are spaced apart along the second direction. At least one of the limiting members has a gap with the flange structure, and a portion of at least one of the flanges is disposed in the gap.

11. The relay according to claim 4, characterized in that, It also includes a coil assembly, which includes a magnetic conductor, a coil, and a coil frame. The coil frame includes two flanges that are spaced apart along a second direction that forms an angle with the first direction. The two flanges are respectively connected to the magnetic conductor, and the coil is located between the two flanges and is wound around the outer periphery of the magnetic conductor.

12. The relay according to claim 11, characterized in that, The outer contour of the cross-section of the magnetic conductive component is circular or elliptical.

13. The relay according to claim 11, characterized in that, The magnetic conductive element and the flange are an integral structure.

14. The relay according to any one of claims 4 to 13, characterized in that, The supporting component is a yoke.

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