Relay

Abstract

The utility model relates to the technical field of relays, discloses a relay, and aims to provide a relay with relatively high electrical clearance. The relay comprises a base body, a magnetic circuit assembly, a card pushing piece and a movable and static spring assembly, the base body is provided with a mounting groove, and the magnetic circuit assembly is located in the mounting groove. In the second direction, at least one side of the installation groove is provided with a dynamic and static spring assembly, and the magnetic circuit assembly is used for controlling the dynamic and static spring assembly to be in an on or off state through the card pushing piece. In the second direction, the base body is at least provided with a corridor notch in the position, facing the side wall of the dynamic and static spring assembly, of the mounting groove, the pushing and clamping piece is partially arranged in the corridor notch, the pushing and clamping piece is connected with a stop block part between the dynamic and static spring assembly and the side wall of the mounting groove, and the stop block part is arranged corresponding to the corridor notch. Through cooperative arrangement of the stop block part and the corridor gap, a creepage path is zigzag, so that the creepage distance between strong and weak electricity in the relay is increased, an electrical gap is improved, and miniaturization and compact design of the relay is facilitated.

Description

Technical Field

[0001] This application relates to the field of relay technology, specifically to a relay. Background Technology

[0002] A relay is an electronic control device widely used in automatic control circuits to achieve switching control such as turning circuits on and off. The main characteristic of a relay is its ability to achieve electrical isolation, that is, to control the on and off states of a high-power (i.e., high-power) load through a low-power (i.e., weak current) signal, thus exhibiting good switching performance and reliability.

[0003] Inside a relay, the insulation properties, such as the electrical clearance between its high-voltage and low-voltage circuits, determine the relay's current rating. For relays with higher current ratings, larger electrical clearances need to be achieved within a smaller internal space to improve the insulation level. Utility Model Content

[0004] The purpose of this application is to provide a relay with a high electrical clearance.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] This application provides a relay in some embodiments, including a base body, a magnetic circuit assembly, a push-lock member, and a moving and stationary spring assembly. The base body has a mounting groove, and the magnetic circuit assembly is located within the mounting groove. The push-lock member is disposed at one end of the mounting groove along a first direction, and extends along a second direction perpendicular to the first direction. Along the second direction, at least one side of the mounting groove has the moving and stationary spring assembly, and the magnetic circuit assembly is used to control the moving and stationary spring assembly to be in a conducting or disengaged state via the push-lock member. Along the second direction, the base body has a connecting notch at least on the side wall of the mounting groove facing the moving and stationary spring assembly, a portion of the push-lock member is disposed within the connecting notch, and the push-lock member has a stop portion connected between the moving and stationary spring assembly and the side wall of the mounting groove, the stop portion being disposed corresponding to the connecting notch.

[0007] In some embodiments, along the second direction, the base body is connected to a first connector on one side of the mounting groove. The dynamic and static spring assembly includes a first static spring and a first dynamic spring. The first static spring is inserted and installed at the first connector, and the first dynamic spring is located along the second direction on the side of the first connector and the first static spring away from the mounting groove, and the first dynamic spring is connected to a push-lock member.

[0008] In some embodiments, along the second direction, the mounting groove is spaced apart from the first connector near its sidewall, and the stop portion includes a first stop connected to the push-lock member. Along the first direction, at least a portion of the first stop and the first connector are located on the same side of the push-lock member. Along the second direction, a first stop is provided between the mounting groove and the first connector near its sidewall.

[0009] In some embodiments, the magnetic circuit assembly includes at least an armature and an electromagnetic coil. Along a first direction, the mounting slot includes a coil slot and an actuation slot connected in sequence, with the electromagnetic coil located within the coil slot and the armature connected to the push-lock member within the actuation slot. Along a second direction, the base body has a connecting notch at least on one side wall of the actuation slot facing the first connector; the first connector and the coil slot are located on opposite sides of the push-lock member along the first direction.

[0010] In some embodiments, the first connector is connected to the bottom wall of the base body at least along a third direction, and the third direction, the second direction, and the first direction are perpendicular to each other. Another portion of the first stop is disposed along a third direction on the side of the pusher facing the bottom wall of the base body.

[0011] In some embodiments, the stop portion further includes a second stop connected to the push-lock member. Along the second direction, the second stop is located between the first movable spring and the first stop. The first connector is connected to the bottom wall of the base body at least along a third direction, the third direction, the second direction, and the first direction being perpendicular to each other, and at least a portion of the second stop is disposed along the third direction on the side of the push-lock member facing the bottom wall of the base body.

[0012] In some implementations, the second stop and the first stop are independent components.

[0013] In some embodiments, along a third direction, the second stop is positioned closer to the bottom wall of the base body than the first moving spring.

[0014] In some embodiments, another portion of the second stop is disposed on opposite sides of the first insert member along the first direction.

[0015] In some embodiments, the first connector and the second stop are offset along a second direction.

[0016] In some embodiments, along the second direction, the base body is connected to a second connector on one side of the mounting groove, and the second connector is spaced apart from the side wall of the mounting groove near the second connector. The second connector is connected to the bottom wall of the base body at least along a third direction, and the third direction, the second direction, and the first direction are perpendicular to each other. The dynamic and static spring assembly includes a second static spring and a second dynamic spring. The second static spring is inserted and installed at the second connector, and the second dynamic spring is located along the second direction on the side of the second connector and the second static spring near the mounting groove, and the second dynamic spring is connected to a push-lock member. The stop portion also includes a third stop connected to the push-lock member, and the third stop is located along the second direction between the second dynamic spring and the side wall of the mounting groove near the second connector. The first part of the third stop block is located on the same side of the pusher along the first direction as the second connector. The second part of the third stop block is located on the side of the pusher away from the second connector along the first direction. The third part of the third stop block is located on the side of the pusher facing the bottom wall of the base body along the third direction. In the third direction, the third part of the third stop block is located closer to the bottom wall of the base body than the second moving spring.

[0017] In some embodiments, along the second direction, the base body has connecting corridor notches at the two opposite side walls of the action groove.

[0018] In some implementations, the outer width of the two opposite sidewalls of the actuation slot is smaller than the outer width of the two opposite sidewalls of the coil slot.

[0019] Taking a magnetic circuit assembly including an armature, a yoke, and an electromagnetic coil as an example, the armature can be switched between a first position and a second position by controlling whether a signal current is connected to the electromagnetic coil. When the armature is in the first position, a pusher can maintain the distance between the stationary and moving springs of the stationary and moving spring assembly, keeping the relay in an open circuit state. When the armature is in the second position, a pusher can maintain contact between the stationary and moving springs of the stationary and moving spring assembly, keeping the relay in a conducting state.

[0020] Thus, by providing a connecting corridor notch on one side wall of the mounting groove along the second direction, the push-lock component installed at the connecting corridor notch can reciprocate along the second direction under the drive of the magnetic circuit components such as the armature, thereby controlling the open and closed states of the moving and stationary spring assembly. The cooperative arrangement of the connecting corridor notch and the push-lock component helps to reduce the height of the relay. Furthermore, a stop block is connected to the push-lock component, and the stop block is positioned along the second direction between the mounting groove and the moving and stationary spring assembly. Thus, through the cooperation of the side wall with the connecting corridor notch in the mounting slot, along the second direction, the air gap between the magnetic circuit components such as the armature (and / or yoke) inside the mounting slot and the moving and stationary spring components outside the mounting slot, and between the magnetic circuit components (i.e., weak current circuits) and the moving and stationary spring components (i.e., strong current circuits), will bend and extend along the structural gaps such as the side wall of the mounting slot, the push clip, and the stop block, so that the creepage distance between the magnetic circuit components and the moving and stationary spring components is greater than the straight distance along the second direction, thereby improving the electrical clearance between the magnetic circuit components and the moving and stationary spring components, so that the relay has a higher insulation level and current level, and is conducive to the miniaturization and compact design of the relay. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of a first three-dimensional structure of a relay provided in an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of a second three-dimensional structure of a relay provided in an embodiment of this application;

[0024] Figure 3 for Figure 1 A magnified view of a portion of point A in the middle;

[0025] Figure 4 for Figure 2 A magnified view of a portion of point B in the middle;

[0026] Figure 5 for Figure 2 A top view of the relay 100 shown;

[0027] Figure 6 for Figure 5 A cross-sectional view along the CC line;

[0028] Figure 7 for Figure 2 A top view of the push-card component shown;

[0029] Figure 8 for Figure 7 A front view of the push-card component shown;

[0030] Figure 9 for Figure 2 A three-dimensional structural diagram of the relay shown from another perspective;

[0031] Figure 10 for Figure 9 A magnified view of a portion of point D.

[0032] Figure label:

[0033] 100. Relay;

[0034] 11. Base body; 12. Mounting slot; 121. Coil slot; 122. Actuation slot; 13. Connecting corridor notch; 14. First connector; 15. Second connector;

[0035] 20. Magnetic circuit assembly; 21. Armature; 22. Yoke; 23. Electromagnetic coil;

[0036] 31. Push-card component; 311. Push-card slot; 312. Insertion interface; 32. Stopping block; 321. First stopping block; 322. Second stopping block; 323. Third stopping block;

[0037] 40. Static and dynamic spring assembly; 41. First static spring; 42. First dynamic spring; 43. Second static spring; 44. Second dynamic spring. Detailed Implementation

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] A relay is an electronic control device widely used in automatic control circuits to switch circuits on and off. In a relay, a signal voltage applied to the electromagnetic coil controls the armature to perform a corresponding action, thereby causing the moving reed to contact the stationary reed to either connect or disconnect, thus controlling the circuit's on or off state. In other words, it uses a low-power (low-voltage) signal to control the on / off state of a high-power (high-voltage) load, achieving electrical isolation and exhibiting good switching performance and reliability.

[0044] Inside a relay, the insulation properties, such as the electrical clearance between its high-voltage and low-voltage circuits, determine the relay's current rating. For relays with higher current ratings, larger electrical clearances need to be achieved within a smaller internal space to improve the insulation level.

[0045] The following is combined with Figures 1 to 10 The present application describes a relay with high electrical clearance.

[0046] like Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of a first three-dimensional structure of the relay 100 provided in an embodiment of this application. Figure 2 This is a second perspective structural diagram of the relay 100 provided in an embodiment of this application. The relay 100 includes a base body 11, a magnetic circuit assembly 20, a push-lock member 31, and a dynamic and static spring assembly 40.

[0047] like Figure 3 As shown, Figure 3 for Figure 1 A partially enlarged schematic diagram at point A. The base body 11 has a mounting groove 12, and the magnetic circuit assembly 20 is located within the mounting groove 12. Push-card component 31 (see reference). Figure 2 The magnetic circuit assembly 20 is disposed at one end of the mounting groove 12 along the first direction (i.e., the X direction) and the pusher 31 extends along the second direction (i.e., the Y direction). Along the second direction, at least one side of the mounting groove 12 is provided with a moving and stationary spring assembly 40, and the magnetic circuit assembly 20 is used to control the moving and stationary spring assembly 40 to be in a conducting state or a disconnected state by means of the pusher 31.

[0048] For example, such as Figure 3 As shown, the magnetic circuit assembly 20 includes an armature 21, a yoke 22, and an electromagnetic coil 23. The electromagnetic coil 23 can be composed of a coil frame and enameled wire (such as insulated wire). By controlling whether a signal current is applied to the electromagnetic coil 23, the armature 21 can switch between a first position state and a second position state. When the armature 21 is in the first position state, it can drive the dynamic and static spring assembly 40 (such as...) by pushing the card 31. Figure 2 The stationary and moving springs (as shown) are kept apart to keep the relay 100 in an open state. When the armature 21 is in the second position, the stationary and moving springs of the stationary and moving spring assembly 40 can be kept in contact by pushing the card 31 to keep the relay 100 in a conducting state.

[0049] Reference Figure 2 and Figure 3 Along the Y direction, the base body 11 has a connecting notch 13 at least on the side wall of the mounting groove 12 facing the dynamic and static spring assembly 40. Figure 4 , Figure 4 for Figure 2 A partially enlarged schematic diagram at point B. The push-lock component 31 is partially positioned within the corridor gap 13, which helps reduce the height of the relay 100 in the third direction (i.e., the Z direction). The push-lock component 31 has a stop portion 32 between the dynamic and static spring assembly 40 and the side wall of the mounting groove 12, and this stop portion 32 is positioned corresponding to the corridor gap 13.

[0050] Thus, referring to Figure 5 and Figure 6 , Figure 5 for Figure 2 A top view of the relay 100 shown. Figure 6 for Figure 5 A sectional view along the CC line. Via the mounting slot 12 (e.g.) Figure 3 As shown, a connecting corridor notch 13 is provided on at least one side wall along the Y direction, so that the push-lock member 31 installed at the connecting corridor notch 13 can reciprocate along the Y direction under the drive of the magnetic circuit assembly 20 such as the armature 21, thereby controlling the open and closed states of the moving and stationary spring assembly 40. The cooperative arrangement of the connecting corridor notch 13 and the push-lock member 31 helps to reduce the height of the relay 100. A stop block 32 is connected to the push-lock member 31, and the stop block 32 is positioned along the Y direction between the mounting groove 12 and the moving and stationary spring assembly 40. Thus, through the cooperation of the side wall of the mounting groove 12 with the connecting corridor notch 13, along the Y direction, the air gap between the magnetic circuit assembly 20 (such as the armature 21 (and / or yoke 22) inside the mounting groove 12 and the moving and stationary spring assembly 40 outside the mounting groove 12, and between the magnetic circuit assembly 20 (i.e., the weak current circuit) and the moving and stationary spring assembly 40 (i.e., the strong current circuit), will bend and extend along the structural gaps such as the side wall of the mounting groove 12, the pusher 31, and the stop block 32, so that the magnetic circuit assembly 20 and the moving and stationary spring assembly 40 have a larger creepage distance (e.g., ...) compared to the straight distance along the Y direction. Figure 5 and Figure 6 (The dashed path in the diagram) thereby increases the electrical clearance between the magnetic circuit assembly 20 and the moving and stationary spring assembly 40, so that the relay has a higher insulation level and current level, and is conducive to the miniaturization and compact design of the relay 100.

[0051] Relay 100 has many different specifications and models in practical applications, such as controlling the on and off states of a single circuit, controlling a circuit (or multiple circuits) to be on and off simultaneously, or controlling two circuits to be on or off alternately.

[0052] In some embodiments, such as Figure 2 and Figure 4 As shown, along the Y direction, the base body 11 is in the mounting groove 12 (e.g. Figure 3 The first connector 14 is connected to one side of the spring assembly (shown). The stationary and moving spring assembly 40 includes a first stationary spring 41 and a first moving spring 42. The first stationary spring 41 is inserted and installed at the first connector 14. The first moving spring 42 is located along the Y direction on the side of the first connector 14 and the first stationary spring 41 away from the mounting groove 12, and the first moving spring 42 is connected to the push-lock member 31.

[0053] For example, along the Y direction, the side of the first connector 14 facing the mounting groove 12 is a closed structure, and the side of the first connector 14 facing away from the mounting groove 12 has an opening. The opening is used to insert and position the first stationary spring 41, and the contact of the first stationary spring 41 is used to contact the contact of the first moving spring 42 through the opening. Alternatively, along the Y direction, the first stationary spring 41 can also be installed on the side of the first connector 14 facing away from the mounting groove 12.

[0054] In this embodiment of the application, taking the first connector 14 located on the right side of the mounting groove 12 along the Y direction as an example, that is, the mounting groove 12 is located on the left side of the first connector 14. Figure 4 As shown, the push-lock component 31 has a push-lock groove 311 at one end along the Y direction near the first moving spring 42, and the push-lock component 31 is installed from top to bottom in the connecting corridor gap 13 (e.g.) along the Z direction. Figure 3 During the process shown, the push-lock groove 311 near the first moving spring 42 is inserted and installed into the first moving spring 42 from top to bottom. This allows the push-lock 31 to move left and right along the Y direction under the drive of the armature 21. Simultaneously, it can drive the first moving spring 42 to move left along the Y direction, so that the contact of the first moving spring 42 remains in contact with the contact of the first stationary spring 41. Alternatively, it can simultaneously drive the first moving spring 42 to move right along the Y direction, so that the contact of the first moving spring 42 remains spaced from the contact of the first stationary spring 41.

[0055] Furthermore, along the Y direction, since the first moving spring 42 is located on the side of the first connector 14 away from the mounting groove 12, it is beneficial to increase the linear distance between the magnetic circuit assembly 20 and the first moving spring 42, thereby improving the electrical clearance inside the relay 100.

[0056] In some embodiments, such as Figure 3 and Figure 5 As shown, the mounting slot 12 includes a coil slot 121 and an actuation slot 122 connected sequentially along the X direction. The electromagnetic coil 23 is located within the coil slot 121, and the armature 21 is connected to the push-lock member 31 within the actuation slot 122. If the actuation slot 122 is located in front of the coil slot 121 along the Y direction, the rear end of the armature 21 is located within the coil slot 121, and the front end of the armature 21 is inserted into the push-lock member 31 within the actuation slot 122 along the front-back direction, so that the electromagnetic coil 23 can control the push-lock member 31 to move left or right via the armature 21.

[0057] Along the Y direction, the base body 11 has a connecting corridor notch 13 at at least one side wall of the action groove 122.

[0058] Combination Figure 6The outer width d1 of the two opposite sidewalls of the actuation slot 122 is smaller than the outer width d2 of the two opposite sidewalls of the coil slot 121. This allows for more clearance space on the left and right sides of the actuation slot 122 to accommodate the stop block 32 without increasing the width of the relay 100.

[0059] Since the components of the magnetic circuit assembly 20, such as the armature 21 and yoke 22, are exposed along the X-direction at the end near the push-lock member 31, i.e., within the actuation slot 122, the mounting slot 12 is divided into a connected actuation slot 122 and a coil slot 121. Furthermore, the outer width of the actuation slot 122 is smaller than that of the coil slot 121. This ensures sufficient linear spacing between the magnetic circuit assembly 20 and the dynamic / static spring assembly 40 in the Y-direction within the actuation slot 122 to guarantee insulation performance, while also facilitating miniaturization of the relay 100 in the Y-direction. Alternatively, while maintaining the relay 100's dimensions along the Y-direction, it is advantageous to increase electrical clearance to improve the relay 100's insulation performance and current rating.

[0060] Thus, along the Y direction, the first connector 14 is positioned close to the side wall of the coil slot 121, which helps to reduce the width of the relay in the Y direction. Along the X direction, the first connector 14 is spaced apart from the side wall of the coil slot 121, allowing the push-lock member 31 to pass through the gap between the first connector 14 and the coil slot 121 along the Y direction, so that the armature 21, through the push-lock member 31, can drive the first moving spring 42 to either connect or disconnect the corresponding circuit.

[0061] Along the Y direction, the mounting groove 12 is spaced apart from the first connector 14 near its side wall. Specifically, at least the actuating groove 122 is spaced apart from the first connector 14 near its side wall (i.e., right side wall).

[0062] Based on this, such as Figure 4 and Figure 7 As shown, Figure 7 for Figure 2 A top view of the push-lock component shown. The stop portion 32 includes a first stop 321 connected to the push-lock component 31. Figure 5 Along the X direction, at least part of the first stop 321 and the first connector 14 are located on the same side of the push-lock member 31. Along the Y direction, the first stop 321 is provided between the side wall of the mounting groove 12 near the first connector 14 and the first connector 14. For example, the first stop 321 is provided between the right side wall of the actuating groove 122 and the first connector 14.

[0063] For example, a portion of the first stop 321 and the first connector 14 may be located on the front side of the pusher 31 to increase the creepage distance by cooperating with the front sidewall of the corridor gap 13. Alternatively, a portion of the first stop 321 and the first connector 14 may be located on the rear side of the pusher 31 to increase the creepage distance by cooperating with the rear sidewall of the corridor gap 13.

[0064] Thus, through the setting of the first stop 321 mentioned above, combined with Figure 5 For example, in a plane perpendicular to the third direction, the electrical clearance between the armature 21 and yoke 22 and the first stationary spring 41 and the first moving spring 42 is the creepage distance bent along the edge of the first stop 321, so as to increase the electrical clearance between the strong and weak currents inside the relay 100.

[0065] In some embodiments, along the Y direction, the base body 11 has a connecting notch 13 at least on one side wall of the actuation groove 122 facing the first connector 14. The first connector 14 and the coil groove 121 are located on opposite sides of the push-lock member 31 along the X direction. That is, part of the first stop 321 and the first connector 14 are located on the front side of the push-lock member 31, and the coil groove 121 is located on the rear side of the push-lock member 31.

[0066] Thus, along the X direction, on the side of the pusher 31 away from the coil groove 121 (i.e., the front side), the magnetic circuit assembly 20 located in the actuation groove 122 mainly consists of the front end of the armature 21 and the yoke 22. By setting the first stop 321, the creepage distance and electrical clearance between the magnetic circuit assembly 20, such as the yoke 22, and the first moving spring 42 can be significantly increased on this side.

[0067] Between the coil slot 121 and the actuation slot 122, there is only a through hole for the armature 21 to pass through and move left and right, so as to improve the electrical clearance between the electromagnetic coil 23 in the coil slot 121 and the high-voltage circuit.

[0068] In some embodiments, such as Figure 4 As shown, the first connector 14 is connected to the bottom wall of the base body 11 at least along a third direction (i.e., the Z direction). The first direction, the second direction, and the third direction are perpendicular to each other. For example, the first direction, the second direction, and the third direction are all straight lines. (Referring to...) Figure 6 and Figure 8 , Figure 8 for Figure 7 The image shows a front view of the push-lock component. Another part of the first stop 321 is disposed along the Z direction on the bottom wall side of the push-lock component 31 facing the base body 11.

[0069] Thus, by setting the first stop 321 located below the pusher 31, combined with Figure 6For example, in a plane perpendicular to the first direction, the electrical clearance between the armature 21 and the yoke and the first stationary spring 41 and the first moving spring 42 is made such that the creepage distance is bent along the edge of the first stop 321 in that part, thereby increasing the electrical clearance between the strong and weak currents inside the relay 100. This can be achieved by increasing the creepage distance and electrical clearance between the yoke 22 and the first moving spring 42 on that side.

[0070] It should be noted that, in this embodiment, the rear side of the pusher 31 is in contact with or has a small gap from the front sidewall of the coil groove 121. Therefore, a first stop 321 is not provided on the rear side of the pusher 31 to prevent the front sidewall of the coil groove 121 from obstructing the reciprocating movement of the pusher 31 in the left-right direction, and to reduce the width of the base body 11.

[0071] For example, such as Figure 4 and Figure 6 As shown, the stop portion 32 also includes a second stop 322 connected to the push-lock member 31, in combination with Figure 6 and Figure 8 Along the Y direction, the second stop 322 is located between the first moving spring 42 and the first stop 321. Along the Z direction, at least part of the second stop 322 is disposed on the side of the push-lock member 31 facing the bottom wall of the base body 11.

[0072] Along the Z-direction, taking the end where the first connector 14 connects to the base body 11 as the lower end as an example, the side wall of the action groove 122 is provided with a connecting corridor notch 13 facing upwards. Part of the second stop 322 is located below the push-lock member 31 and is connected to it. The second stop 322 is configured to cooperate with the lower side wall of the connecting corridor notch 13, making the creepage path between strong and weak currents meander, which helps to increase the creepage distance and electrical clearance.

[0073] Since the outer width of the action groove 122 is smaller than that of the coil groove 121, and the first connector 14 is provided such that there is a gap between it and the side wall of the action groove 122 in the Y direction.

[0074] Based on this, the first stop 321 and the second stop 322 are independent components. For example, the second stop 322 is located on the side of the first stop 321 near the first moving spring 42 along the Y direction, and the first stop 321 and the second stop 322 are spaced apart along the Y direction.

[0075] For example, the actuation slot 122 is located in the X direction in front of the coil slot 121. In the gap between the first connector 14 and the right side wall of the actuation slot 122, a first stop 321 is set and extended forward and downward to cooperate with the front and lower side walls of the corridor gap 13 to increase the creepage distance and electrical clearance of the strong and weak current inside the relay 100.

[0076] Based on this, by setting a second stop 322, which is an independent component, on the right side of the first stop 321, it is beneficial to cooperate with the lower and rear side walls of the connecting corridor gap 13 to increase the creepage distance and electrical clearance of the strong and weak currents inside the relay 100, thereby giving the relay 100 better insulation performance and a higher current rating. At this time, the second stop 322 can be located on the right side of the coil slot 121 along the Y direction to avoid affecting the smoothness of the pusher 31 moving in the left and right directions.

[0077] In some embodiments, such as Figure 6 As shown, along the Z direction, the second stop 322 is positioned closer to the bottom wall of the base body 11 than the first movable spring 42. For example, the lower end of the second stop 322 is lower than the lower end of the first movable spring 42.

[0078] Thus, by setting the lower end of the second stop 322 below the bottom of the first moving spring 42, the creepage path from the side wall of the actuation groove 122 to the first moving spring 42 will be bent at the bottom of the second stop 322 and then set toward the first moving spring 42, thereby increasing the electrical clearance through the bent creepage path.

[0079] Wherein, when the bottom of the first moving spring 42 has the same height dimension, the bottom of the second stop 322 is set lower than the bottom of the first moving spring 42.

[0080] If the bottom of the first movable spring 42 has different height dimensions, such as the bottom of the first movable spring 42 gradually decreasing from front to right, it can be considered as a sloping structure. That is, the rear end of the first movable spring 42 is lower than the front end. In this case, along the Z direction, the second stop 322 can be set closer to the bottom wall of the base body 11 than the front end of the first movable spring 42. That is, the second stop 322 is lower than the front end of the first movable spring 42.

[0081] For example, when a first stop 321 and a second stop 322 are provided on the lower side of the pusher 31, the end of the second stop 322 away from the pusher 31 is lower than the end of the first stop 321 away from the pusher 31 along the Z direction.

[0082] Thus, by setting the lower end of the second stop 322 to be lower than the lower end of the first stop 321, from the side wall of the actuation groove 122 to the first moving spring, the creepage path is bent between the first stop 321 and the second stop 322, thereby increasing the creepage path and electrical clearance.

[0083] In some embodiments, such as Figure 4 and Figure 7As shown, another part of the second stop 322 is disposed on opposite sides of the first connector 14 in the X direction. If the first connector 14 is located on the front side of the pusher 31, the second part of the second stop 322 is disposed on the rear side of the pusher 31.

[0084] Combination Figure 5 The second part of the second stop 322 is located on the right side of the coil groove 121 along the Y direction. By setting this part of the second stop 322, the creepage path on the back side of the pusher 31 can be bent and extended along the edge of this part of the second stop 322, thereby increasing the creepage path and electrical clearance.

[0085] In this embodiment, the second stop 322 and the first plug 14 are offset along the Y direction to avoid the contact and jamming between the second stop 322 and the first plug 14 affecting the reciprocating movement of the pusher 31 along the Y direction.

[0086] For example, along the Y direction, at the position of the push card 31 near the first plug 14, the first plug 14 is located on the front side of the push card 31, and the rear side and the lower side of the push card 31 are respectively connected to the second part and the first part of the second stop 322, so that the second stop 322 and the first plug 14 are completely misaligned in the left and right direction.

[0087] Based on this, by setting the first stop 321 and the second stop 322, the front, rear and lower sides of the pusher 31 are all provided with stop portions, so as to cooperate with the front side wall, rear side wall and lower side wall of the corridor gap so that the creepage path between strong and weak current can be bent or even approximately S-shaped tortuous structure, which is beneficial to increase the creepage path and electrical clearance inside the relay 100.

[0088] In some embodiments, refer to Figure 6 and Figure 8 The relay 100 has a plug-in interface 312 in the action slot 122 part along the first direction. The size and shape of the plug-in interface 312 are adapted to the front end of the armature 21 and are used to plug and assemble the armature 21 with the push-lock member 31 along the first direction, so that the push-lock member 31 can be moved synchronously to the left or right through the signal current via the armature 21.

[0089] In some embodiments, such as Figure 9 and Figure 10 As shown, Figure 9 for Figure 2 The diagram shows a three-dimensional structure of the relay from another perspective. Figure 10 for Figure 9A partially enlarged schematic diagram at point D. Along the Y direction, the base body 11 is connected to a second connector 15 on one side of the mounting groove 12, and the second connector 15 is spaced apart from the side wall (e.g., the left side wall) of the mounting groove (e.g., the actuating groove 122) near the second connector 15. Combined with... Figure 5 The stationary and moving spring assembly 40 includes a second stationary spring 43 and a second moving spring 44. The second stationary spring 43 is inserted and installed at the second connector 15. The second moving spring 44 is located along the second direction on the side of the second connector 15 and the second stationary spring 43 near the mounting groove 12, and the second moving spring 44 is connected to the push-lock member 31.

[0090] For example, the end of the first movable spring 42 away from the first stationary spring 41 in the X direction can be inserted and installed into the base body 11 via a movable spring bracket. The end of the second movable spring 44 away from the second stationary spring 43 can also be inserted and installed into the base body 11 via a movable spring bracket.

[0091] like Figure 10 As shown, the push-lock component 31 is installed by inserting it into the second movable spring 44 through the push-lock groove 311. When the push-lock component 31 moves left and right along the direction driven by the armature 21, it can also drive the second movable spring 44 to move left or right simultaneously, so that the contact of the second movable spring 44 and the contact of the second stationary spring 43 are kept in a spaced or contacted state.

[0092] The second connector 15 can be considered as a copy of the first connector 14 from right to left, moved to the left side of the actuation slot 122, with both being approximately identical in structure and shape. Thus, when the pusher 31 moves to the right, it causes the contacts of the first moving spring 42 and the second moving spring 44 to remain spaced apart, i.e., the circuit is open. When the pusher 31 moves to the left, it causes the contacts of the first moving spring 42 and the second moving spring 44 to remain in contact, i.e., the circuit is closed. At this time, the relay 100 has a dual-circuit structure, capable of simultaneously controlling both circuits to be in a closed or open state.

[0093] Alternatively, the second connector 15 and the first connector 14 can also be considered approximately as an axisymmetric structure. When the push-lock member 31 moves to the right, the contacts of the first moving spring 42 remain spaced apart, and the contacts of the second moving spring 44 remain in contact. When the push-lock member 31 moves to the left, the contacts of the second moving spring 44 remain spaced apart, and the contacts of the first moving spring 42 remain in contact. At this time, the relay 100 has a dual-circuit structure, capable of controlling one of the two circuits to be in a conducting or disconnected state.

[0094] A first moving spring 42 or a second moving spring 44 and corresponding components may also be provided on one side of the mounting slot 12 so that the relay 100 can control the on or off state of a single circuit, without limitation.

[0095] Based on this, Figure 5 and Figure 6 For example, along the Y direction, the right side of the action groove 122 is equipped with a first stationary spring 41 and a first moving spring 42, and the left side of the action groove 122 is equipped with a second stationary spring 43 and a second moving spring 44. The left and right ends of the push-lock member 31 are inserted and assembled with the second moving spring 44 and the first moving spring 42 along the Z direction.

[0096] Thus, when armature 21 is in Figure 5 In the first position state shown, the first moving spring 42 and the first stationary spring 41 (as shown) are moved by the push-lock member 31. Figure 4 The two contacts of the second moving spring 44 and the second stationary spring 43 are kept apart, that is, at this time, both circuits in the moving and stationary spring assembly 40 of the relay 100 are in an open circuit state.

[0097] When armature 21 is in the position of Figure 5 When the first position shown moves to the left to the second position, the first moving spring 42 and the first stationary spring 41 (as shown) are moved by the pusher 31. Figure 4 The two contacts (as shown) remain in contact, and the two contacts of the second moving spring 44 and the second stationary spring 43 remain in contact, that is, at this time, both circuits in the moving and stationary spring assembly of the relay 100 are in the conducting state.

[0098] In some embodiments, such as Figure 7 and Figure 8 As shown, the stop portion 32 also includes a third stop 323 connected to the pusher 31. (Combined with...) Figure 10 The third stop 323 is located along the Y direction between the second movable spring 44 and the side wall (i.e., the left side wall) of the actuation groove 122 (i.e., the mounting groove) near the second connector 15. Thus, the first part of the third stop 323 is located along the X direction on the same side of the push-lock member 31 as the second connector 15, such as both being located on the front side of the push-lock member 31. The second part of the third stop 323 is located along the X direction on the side of the push-lock member 31 away from the second connector 15, such as being connected to the rear side of the push-lock member 31. The third part of the third stop 323 is located along the Z direction on the side of the push-lock member 31 facing the bottom wall of the base body 11, i.e., connected to the lower side of the push-lock member 31. Furthermore, along the Z direction, the third part of the third stop 323 is located closer to the bottom wall of the base body 11 than the second movable spring 44.

[0099] Among them, the first part, the third part and the second part of the third stop block 323 are connected in sequence to form a whole.

[0100] Thus, combined Figure 5By setting the third stop 323 in the first and second parts, in conjunction with the front and rear side walls of the connecting corridor gap 13, on the front and rear sides of the push-lock member 31, the creepage path between strong and weak currents can bend and extend along the edge of the third stop 323, which helps to increase the creepage path and electrical clearance inside the relay 100. Figure 6 By setting the third stop 323 in the third part, in conjunction with the bottom side wall of the corridor gap 13, on the lower side of the pusher 31, the creepage path between strong and weak current can be bent and extended along the edge of the third stop 323, which is beneficial to increase the creepage path and electrical clearance inside the relay 100.

[0101] For example, at the front end of the second moving spring 44, the lower end of the third stop 323 can be positioned closer to the bottom wall of the base body 11 than the lower edge of the second moving spring 44. This allows the creepage path to bend and extend when passing under the third stop 323, thereby increasing the creepage path and electrical clearance inside the relay 100.

[0102] In this embodiment of the application, along the Y direction, the base body 11 may have connecting corridor notches 13 at the two opposite side walls of the action groove 122.

[0103] When both sides of the action groove 122 are provided with moving and stationary spring assemblies 40, the pusher 31 connects and controls the second moving spring 44 and the first moving spring 42 through the connecting corridor gaps 13 on the left and right sides.

[0104] If the motion slot 122 is equipped with a dynamic and static spring assembly 40 only on the left or right side, the push-lock component 31 is supported and installed through the connecting corridor gap 13 on the left and right sides, so that the push-lock component 31 moves more smoothly when it moves back and forth in the left and right directions.

[0105] 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.

[0106] The above embodiments merely illustrate 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 comprising a base body (11), a magnetic circuit assembly (20), a push-pull member (31) and a moving and static spring assembly (40); the base body (11) is provided with a mounting groove (12), and the magnetic circuit assembly (20) is located in the mounting groove (12); the push-pull member (31) is arranged at one end of the mounting groove (12) along a first direction, and the push-pull member (31) is arranged along a second direction, and the second direction is perpendicular to the first direction; at least one side of the mounting groove (12) is provided with the moving and static spring assembly (40) along the second direction, and the magnetic circuit assembly (20) is used for controlling the moving and static spring assembly (40) to be in an on or off state through the push-pull member (31); characterized in that, at least one side wall of the mounting groove (12) towards the moving and static spring assembly (40) of the base body (11) is provided with a corridor gap (13) along the second direction, part of the push-pull member (31) is arranged in the corridor gap (13), and the push-pull member (31) is connected with a stop block portion (32) between the moving and static spring assembly (40) and the side wall of the mounting groove (12), and the stop block portion (32) is arranged corresponding to the corridor gap (13).

2. The relay according to claim 1, characterized in that A first plug-in member (14) is connected to one side of the mounting groove (12) of the base body (11) along the second direction; the moving and static spring assembly (40) comprises a first static spring sheet (41) and a first moving spring sheet (42), the first static spring sheet (41) is plug-in installed at the first plug-in member (14), the first moving spring sheet (42) is located away from one side of the mounting groove (12) of the first plug-in member (14) and the first static spring sheet (41) along the second direction, and the first moving spring sheet (42) is connected with the push-pull member (31).

3. The relay according to claim 2, characterized in that The side wall of the mounting groove (12) close to the first plug-in member (14) is spaced apart from the first plug-in member (14) along the second direction, and the stop block portion (32) comprises a first stop block (321) connected with the push-pull member (31); at least part of the first stop block (321) is located on the same side of the push-pull member (31) as the first plug-in member (14) along the first direction; the first stop block (321) is arranged between the side wall of the mounting groove (12) close to the first plug-in member (14) and the first plug-in member (14) along the second direction.

4. The relay according to claim 3, characterized in that The magnetic circuit assembly (20) at least comprises an armature (21) and an electromagnetic coil (23); the mounting groove (12) comprises a coil groove (121) and an action groove (122) which are sequentially communicated along the first direction, the electromagnetic coil (23) is located in the coil groove (121), and the armature (21) is connected with the push-pull member (31) in the action groove (122). Wherein, along the second direction, the base body (11) is provided with the corridor gap (13) at least at one side wall of the action slot (122) towards the first plug-in part (14); the first plug-in part (14) and the coil slot (121) are located on opposite sides of the push-pull piece (31) along the first direction.

5. The relay of claim 3, wherein The first plug-in part (14) is connected to the bottom wall of the base body (11) at least along a third direction, the third direction, the second direction and the first direction are perpendicular to each other. Wherein, another part of the first stop block (321) is arranged on the side of the push-pull piece (31) towards the bottom wall of the base body (11) along the third direction.

6. The relay according to any one of claims 3 to 5, characterized in that The stop block part (32) further comprises a second stop block (322) connected to the push-pull piece (31). Along the second direction, the second stop block (322) is located between the first dynamic spring sheet (42) and the first stop block (321). The first plug-in part (14) is connected to the bottom wall of the base body (11) at least along a third direction, the third direction, the second direction and the first direction are perpendicular to each other, and at least part of the second stop block (322) is arranged on the side of the push-pull piece (31) towards the bottom wall of the base body (11) along the third direction.

7. The relay according to claim 6, characterized in that The second stop block (322) and the first stop block (321) are independent components.

8. The relay according to claim 6, wherein, Along the third direction, the second stop block (322) is arranged closer to the bottom wall of the base body (11) than the first dynamic spring sheet (42); and / or, another part of the second stop block (322) is arranged on opposite sides of the push-pull piece (31) along the first direction relative to the first plug-in part (14); and / or, The first plug-in part (14) and the second stop block (322) are arranged in a staggered manner along the second direction.

9. The relay according to any one of claims 1 to 5, characterized in that Along the second direction, the base body (11) is connected with a second plug-in part (15) on one side of the mounting slot (12), and the second plug-in part (15) is arranged in a spaced manner relative to the side wall of the mounting slot (12) close to the second plug-in part (15); The second plug-in part (15) is connected to the bottom wall of the base body (11) at least along a third direction, the third direction, the second direction and the first direction are perpendicular to each other; The dynamic and static spring assembly (40) comprises a second static spring sheet (43) and a second dynamic spring sheet, the second static spring sheet (43) is plug-in installed at the second plug-in part (15), the second dynamic spring sheet is located on the side of the second plug-in part (15) and the second static spring sheet (43) close to the mounting slot (12) along the second direction, and the second dynamic spring sheet is connected to the push-pull piece (31); The block part (32) further comprises a third block (323) connected with the push-pull piece (31), the third block (323) is located between the second spring sheet (44) and the side wall of the mounting groove (12) close to the second plug-in piece (15) along the second direction; The first part of the third block (323) is located on the same side of the push-pull piece (31) as the second plug-in piece (15) along the first direction, the second part of the third block (323) is located on the side of the push-pull piece (31) away from the second plug-in piece (15) along the first direction, the third part of the third block (323) is arranged on the side of the push-pull piece (31) toward the bottom wall of the base body (11) along the third direction, and the third part of the third block (323) is arranged closer to the bottom wall of the base body (11) than the second spring sheet (44) along the third direction.

10. The relay according to claim 4, wherein Along the second direction, the base body (11) is provided with the corridor notch (13) at two opposite side walls of the action groove (122); and / or, The outer width dimensions of the two opposite side walls of the action groove (122) are smaller than the outer width dimensions of the two opposite side walls of the coil groove (121).

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