Magnetic latching relay

Abstract

The utility model provides a magnetic latching relay. The magnetic latching relay comprises a base, a magnetic circuit assembly, a fixing frame, a monitoring movable spring and a monitoring static spring. The magnetic circuit assembly is arranged on the base and can swing in the first horizontal direction. The fixing frame is connected to the base, covers at least part of the magnetic circuit assembly and is provided with an insertion structure. The monitoring movable spring and the monitoring static spring are inserted into the insertion structure in the vertical direction, and the ends of the monitoring movable spring and the monitoring static spring extend out of the insertion structure. The vertical direction is perpendicular to the first horizontal direction; when a first voltage is applied, the magnetic circuit assembly moves towards one side in a first horizontal direction to drive the end part of the monitoring movable spring and the end part of the monitoring static spring to be closed; and when a second voltage opposite to the first voltage is applied, the magnetic circuit assembly moves towards the opposite side, and the end part of the monitoring movable spring is disconnected from the end part of the monitoring static spring. The magnetic latching relay provided by the embodiment of the utility model can reduce the cost and improve the monitoring safety and reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to relay technology field especially relates to a magnetic latching relay. BACKGROUND

[0002] The magnetic latching relay is one kind of relay, which connects and disconnects the load circuit. The normally closed or normally open state of the magnetic latching relay depends on the permanent magnet, and the switching state of the magnetic latching relay is triggered by different pulse signals. Usually, the magnetic latching relay is arranged on a circuit board, for example, the circuit board is installed in an electric meter.

[0003] In the prior art, in order to monitor the opening and closing state of the magnetic latching relay contact, a first test terminal is designed as a live wire at the incoming line end, and a second test terminal is designed as a zero line at the outgoing line end. The voltage drop of the two test terminals is measured. If there is a voltage drop, it means that there is current passing through, and the relay is in the closed state. If there is no voltage drop, it means that there is no current passing through, and the relay is in the open state. However, because there are strong and weak currents on the circuit board, an isolation structure needs to be arranged between the strong and weak currents, such as adding an optical coupling device isolation. However, this will increase the cost of the circuit board, and the monitoring safety and reliability need to be improved.

[0004] The above information disclosed in the background section is only used to enhance the understanding of the background of the utility model, so it can include information which does not constitute the related art known to those skilled in the art. CONTENT OF THE UTILITY MODEL

[0005] The embodiment of the utility model provides a magnetic latching relay, which can reduce the cost, improve the monitoring safety and reliability.

[0006] The magnetic latching relay of the embodiment of the utility model, comprising: base, magnetic circuit assembly, fixed frame, monitoring dynamic spring and monitoring static spring. The magnetic circuit assembly is arranged on the base and can swing in the first horizontal direction; the fixed frame is connected to the base and covers at least part of the magnetic circuit assembly, and the fixed frame is provided with a plug-in structure; the monitoring dynamic spring and the monitoring static spring are plugged into the plug-in structure along the vertical direction and the end part thereof extends out of the plug-in structure; wherein the vertical direction is perpendicular to the first horizontal direction; when a first voltage is applied, the magnetic circuit assembly moves to one side in the first horizontal direction, driving the end part of the monitoring dynamic spring to close with the end part of the monitoring static spring; when a second voltage opposite to the first voltage is applied, the magnetic circuit assembly moves to the other side, and the end part of the monitoring dynamic spring is disconnected with the end part of the monitoring static spring.

[0007] In some embodiments of the utility model, the side of the magnetic circuit assembly close to the monitoring dynamic spring is provided with a convex part protruding towards the monitoring dynamic spring, when the magnetic circuit assembly moves close to the monitoring dynamic spring, the convex part pushes the end of the monitoring dynamic spring to move towards the end close to the monitoring static spring.

[0008] In some embodiments of the utility model, the magnetic circuit assembly comprises a permanent magnet, an armature and an injection molding part, the injection molding part covers the permanent magnet and part of the armature, the injection molding part is swingably connected with the base and the fixed frame, the convex part is integrally formed with the injection molding part.

[0009] In some embodiments of the utility model, the monitoring dynamic spring and the monitoring static spring are arranged along the first horizontal direction and are located on one side of the magnetic circuit assembly in the first horizontal direction, and the monitoring dynamic spring is closer to the magnetic circuit assembly than the monitoring static spring.

[0010] In some embodiments of the utility model, the insertion structure comprises a first insertion part and a second insertion part adjacent in the first horizontal direction, the first insertion part has a first insertion space through in the vertical direction, the second insertion part has a second insertion space through in the vertical direction, the first insertion space is used for inserting the monitoring dynamic spring, and the second insertion space is used for inserting the monitoring static spring.

[0011] In some embodiments of the utility model, the top ends of the first insertion part and the second insertion part are flush, the second insertion part protrudes towards the base in the vertical direction than the first insertion part, so that the insertion structure is in a stepped shape, and the size of the second insertion space in the vertical direction is greater than the size of the first insertion space in the vertical direction.

[0012] In some embodiments of the utility model, the second insertion part comprises a first lateral protruding part and a second lateral protruding part, the first lateral protruding part and the second lateral protruding part are located on two sides of the second insertion part in the second horizontal direction and on the side of the fixed frame facing the base, the base is provided with a first insertion slot and a second insertion slot oppositely arranged along the second horizontal direction, and the first lateral protruding part and the second lateral protruding part are respectively inserted into the first insertion slot and the second insertion slot, wherein the second horizontal direction is perpendicular to the first horizontal direction and the vertical direction.

[0013] In some embodiments of the utility model, the inserting structure further includes a first partition piece, the first partition piece is arranged at the top of the first inserting space and the second inserting space, and the inner wall of the first inserting space and the second inserting space respectively forms a first inserting opening and a second inserting opening located at the two ends of the diagonal line of the inserting structure, wherein the first inserting opening is communicated with the first inserting space, and the second inserting opening is communicated with the second inserting space.

[0014] In some embodiments of the utility model, at least one first glue dispensing opening and at least one second glue dispensing opening are arranged on the first partition piece, the first glue dispensing opening is communicated with the first inserting space, and the second glue dispensing opening is communicated with the second inserting space.

[0015] In some embodiments of the utility model, the monitoring moving spring includes a first lead-out part, a first connecting part and a first spring blade part connected in sequence, wherein the first connecting part is inserted into the first inserting space, the first lead-out part is inserted into the first inserting opening and extends out of the first inserting space from the first inserting opening, and the first spring blade part extends out of the first inserting space and extends towards the base; the monitoring static spring includes a second lead-out part, a second connecting part and a second spring blade part connected in sequence, wherein the second connecting part is inserted into the second inserting space, the second lead-out part is inserted into the second inserting opening and extends out of the second inserting space from the second inserting opening, and the second spring blade part extends out of the second inserting space and extends towards the base.

[0016] In some embodiments of the utility model, the first lead-out part is provided with a first arc-shaped notch, the first arc-shaped notch is located at the part where the first lead-out part contacts the first partition piece, so as to provide space for the flowing fixing glue during glue dispensing; and / or the second lead-out part is provided with a second arc-shaped notch, the second arc-shaped notch is located at the part where the second lead-out part contacts the first partition piece, so as to provide space for the flowing fixing glue during glue dispensing.

[0017] In some embodiments of the utility model, the second connecting part is provided with at least one barb structure on the opposite sides in the second horizontal direction.

[0018] In some embodiments of the utility model, the width of the first spring blade part and the second spring blade part is constant or gradually increases in the vertical direction.

[0019] In some embodiments of the utility model, the second spring blade part of the monitoring static spring has a bifurcated structure, the bottom of the bifurcated structure is provided with two monitoring static contact points; the bottom of the monitoring moving spring is provided with two monitoring moving contact points, and the two monitoring moving contact points correspond to the two monitoring static contact points one by one.

[0020] In some embodiments of the utility model, the first spring part of the monitoring moving spring extends obliquely from the first connecting part to a direction away from the second spring part of the monitoring stationary spring.

[0021] In some embodiments of the utility model, the plug-in structure is integrally formed with the fixing frame.

[0022] From the above technical solution, the utility model has at least one of the following advantages and positive effects:

[0023] 1. In the embodiment of the utility model, the plug-in structure is arranged on the fixing frame, the monitoring moving spring and the monitoring stationary spring are plugged into the plug-in structure, the monitoring moving spring moves synchronously with the magnetic circuit assembly, the closing and opening of the monitoring moving spring and the monitoring stationary spring are realized, and the closing and opening of the magnetic latching relay are monitored. Since the monitoring moving spring and the monitoring stationary spring are plugged into the plug-in structure and are in the internal weak signal end, direct strong electric signal measurement at the stationary spring lead-out end is avoided, a strong and weak electric isolation structure is not needed, the design of the circuit board is simplified, the cost is reduced, and the monitoring of the relay is safer and more reliable.

[0024] 2. In the embodiment of the utility model, the plug-in structure is arranged on the fixing frame, compared with the related art in which a micro switch is arranged on the base to monitor, the assembly can be simplified, the structure of the entire fixing frame is simple, deformation can be prevented, when the magnetic circuit assembly swings, the monitoring moving spring can be more accurately pushed to move, the accuracy and reliability of the monitoring are further improved, the size of the entire relay is reduced, and miniaturization is facilitated.

[0025] 3. In the embodiment of the utility model, the convex part protruding toward the monitoring moving spring is arranged on the side of the magnetic circuit assembly close to the monitoring moving spring, when the magnetic circuit assembly moves close to the monitoring moving spring, the convex part pushes the end of the monitoring moving spring to move in the direction close to the end of the monitoring stationary spring, the movement of the magnetic circuit assembly can be more accurately transmitted to the monitoring moving spring, and the accuracy and reliability of the monitoring are further improved.

[0026] 4. In the embodiment of the utility model, the second plug-in part protrudes in the vertical direction to the direction close to the base than the first plug-in part, the plug-in structure is in a stepped shape, the contact area of the monitoring stationary spring and the inner wall of the second plug-in space can be increased, the monitoring stationary spring can be prevented from exiting the second plug-in space, and the stability is improved.

[0027] 5. The utility model discloses an embodiment, second insert department includes first lateral protruding portion and second lateral protruding portion, and the base is equipped with the first insert groove and the second insert groove who sets up relatively along the second horizontal direction, and first lateral protruding portion and second lateral protruding portion are inserted in first insert groove and second insert groove respectively, therefore, first insert groove and second insert groove can play the role of limiting and positioning to first lateral protruding portion and second lateral protruding portion, make the insert structure can be more accurate and stably installed in the base. In addition, the insert structure can be extracted from first insert groove and second insert groove, make installation more flexible, easy to adjust.

[0028] 6. The utility model discloses an embodiment, the first spring piece of monitoring the dynamic spring extends from the first connecting portion to the direction of the second spring piece of monitoring the static spring, so that the center of monitoring the dynamic contact can correspond with the center of monitoring the static contact after monitoring the dynamic spring moves to monitoring the static spring, realizes the center contact of two contacts when closing, ensures the stability of both closing, and then improves the reliability. BRIEF DESCRIPTION OF DRAWINGS

[0029] The above and other features and advantages of the present utility model will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0030] Figure 1 It is the perspective structure schematic drawing of magnetic latching relay that some embodiments of the utility model show;

[0031] Figure 2 It is the overhead schematic drawing of magnetic latching relay that some embodiments of the utility model show in the disconnected state after removing cover body;

[0032] Figure 3 It is the overhead schematic drawing of magnetic latching relay that some embodiments of the utility model show in the disconnected state after removing cover body and fixed frame;

[0033] Figure 4 It is the overhead schematic drawing of magnetic latching relay that some embodiments of the utility model show in the closed state after removing cover body;

[0034] Figure 5 It is the overhead schematic drawing of magnetic latching relay that some embodiments of the utility model show in the closed state after removing cover body, fixed frame and injection molding piece;

[0035] Figure 6 It is the side surface schematic drawing of magnetic circuit subassembly, fixed frame and monitoring dynamic spring, monitoring static spring after assembling that some embodiments of the utility model show;

[0036] Figure 7 It is the perspective structure schematic drawing of magnetic circuit subassembly, fixed frame and monitoring dynamic spring, monitoring static spring after assembling that some embodiments of the utility model show.

[0037] Figure 8 A perspective view of the fixed frame and the monitoring dynamic spring and the monitoring static spring assembled according to some embodiments of the utility model;

[0038] Figure 9 A perspective view of the fixed frame and the monitoring dynamic spring and the monitoring static spring assembled according to some embodiments of the utility model;

[0039] Figure 10 A schematic view (top view angle) of the plug-in structure of the fixed frame according to some embodiments of the utility model;

[0040] Figure 11 A sectional view along Figure 10 A-A;

[0041] Figure 12 A schematic view (bottom view angle) of the plug-in structure of the fixed frame according to some embodiments of the utility model;

[0042] Figure 13 A side view of the fixed frame and the monitoring dynamic spring and the monitoring static spring assembled according to some embodiments of the utility model;

[0043] Figure 14 A perspective view of the fixed frame and the monitoring dynamic spring and the monitoring static spring assembled according to some embodiments of the utility model;

[0044] Figure 15 A top view schematic view of the base and part assembly according to some embodiments of the utility model;

[0045] Figure 16 A perspective view of the base according to some embodiments of the utility model;

[0046] Figure 17 A top view schematic view of the first side protruding part and the second side protruding part of the plug-in structure respectively matched with the first plug-in slot and the second plug-in slot of the base according to some embodiments of the utility model;

[0047] Figure 18 A perspective view of the monitoring dynamic spring according to some embodiments of the utility model;

[0048] Figure 19 A front view of the monitoring dynamic spring according to some embodiments of the utility model;

[0049] Figure 20 A perspective view of the monitoring static spring according to some embodiments of the utility model;

[0050] Figure 21 A front view of the monitoring static spring according to some embodiments of the utility model;

[0051] Figure 22 This is a top view of the fixed frame assembled with the monitoring moving spring and the monitoring stationary spring, as shown in some embodiments of this utility model;

[0052] Figure 23 for Figure 22 A schematic cross-sectional view of the middle BB;

[0053] Figure 24 for Figure 22 A cross-sectional view of the middle CC.

[0054] Explanation of reference numerals in the attached figures:

[0055] 1. Base; 11. First insertion slot; 12. Second insertion slot; 10. Cover; 2. Magnetic circuit assembly; 21. Permanent magnet; 22. Armature; 23. Injection molded part; 231. Protrusion; 232. Swing arm; 24. First yoke; 25. Second yoke; 3. Fixing bracket; 31. Second shaft hole; 4. Insertion structure; 401. First insertion part; 402. Second insertion part; 4021. First lateral protrusion; 4022. Second lateral protrusion; 41. First separator; 42. Second separator; 43. First insertion port; 44. Second insertion port; 45. First glue outlet; 46. Second glue outlet; 47. Wedge-shaped protrusion; 5. Monitoring spring; 51. First lead-out part; 511. First arc-shaped notch; 52. First connection 53. First spring section; 531. Monitoring moving contact; 54. Bending section; 6. Monitoring stationary spring; 61. Second lead-out section; 611. Second arc-shaped notch; 62. Second connecting section; 621. Barbed structure; 63. Second spring section; 631. Monitoring stationary contact; 64. Reinforcing section; 7. Coil assembly; 71. Coil frame; 72. Coil; 8. Contact assembly; 81. Moving spring; 811. Moving contact; 812. Moving spring lead-out end; 82. Stationary spring; 821. Stationary contact; 822. Stationary spring lead-out end; 9. Push card; X, First horizontal direction; Y, Second horizontal direction; Z, Vertical direction; S1, First insertion space; S2, Second insertion space; L1, First center line; L2, Second center line; α, Included angle. Detailed Implementation

[0056] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0057] like Figure 1As shown, the magnetic latching relay of the embodiment of the utility model includes base 1 and cover 10, base 1 has accommodating space, for setting up the multiple components of magnetic latching relay, cover 10 is covered on base 1, to protect the components in base 1.

[0058] As shown, Figures 2 to 5 The magnetic latching relay further includes coil assembly 7, magnetic circuit assembly 2 and contact assembly 8 arranged on base 1 and placed in the accommodating space.

[0059] The magnetic circuit assembly 2 is arranged on base 1 and can swing in the first horizontal direction X. Figure 3 、 Figure 5 And Figure 17 As shown, the magnetic circuit assembly 2 can include permanent magnet 21, armature 22 and injection molding piece 23. The injection molding piece 23 is covered on the permanent magnet 21 and part of the armature 22, so that the permanent magnet 21 and the armature 22 are fixedly connected, and the armature 22 protrudes from the permanent magnet 21 along the second horizontal direction Y. The injection molding piece 23 is swingably connected with the base 1, that is, the injection molding piece 23 is provided with a rotating shaft, the base 1 is provided with a first shaft hole (not shown in the figure), one end of the rotating shaft of the injection molding piece 23 is connected in the first shaft hole and can rotate in the first shaft hole. Figure 3 As shown, the injection molding piece 23 further includes a swing arm 232 integrally formed.

[0060] The magnetic circuit assembly 2 can further include first yoke 24 and second yoke 25, which are located in the base 1 and at both ends of the coil assembly 7 and connected with both ends of the core respectively.

[0061] Continuing to refer to Figure 2 And Figure 3 The contact assembly 8 includes moving spring sheet 81 and static spring sheet 82, the moving spring sheet 81 is provided with moving contact 811, the static spring sheet 82 is provided with static contact 821, and the moving contact 811 and the static contact 821 are correspondingly arranged in the first horizontal direction X. Figure 2 As shown, the magnetic latching relay further includes moving spring lead-out end 812 and static spring lead-out end 822, which are arranged outside the base 1, and the moving spring lead-out end 812 is connected with the moving spring sheet 81, and the static spring lead-out end 822 is connected with the static spring sheet 82, so as to realize the connection of the moving spring sheet 81 and the static spring sheet 82 with the load circuit.

[0062] As shown, Figures 2 to 5 The magnetic latching relay of the embodiment of the utility model further includes push card 9, which is movably arranged on the base 1. One end of the push card 9 is connected with the swing arm 232 of the injection molding piece 23, and the other end is connected with one end of the moving spring sheet 81 provided with the moving contact 811.

[0063] When a positive voltage is applied to the coil 72, the permanent magnet 21 of the magnetic circuit assembly 2 swings to one side in the first horizontal direction X, and drives the armature 22 to swing, the armature 22 is lapped with the first yoke 24 and the second yoke 25, so that the permanent magnet 21, the armature 22, the first yoke 24, the core and the second yoke 25 form a constant magnetic field. At the same time, the swing arm 232 of the injection molding part 23 swings with the permanent magnet 21 in the same direction, the swing arm 232 drives the push card 9 to move in the first horizontal direction X, the push card 9 drives the moving contact 811 to move towards the stationary contact 821 (as shown in Figure 4 and Figure 5 ), so as to realize the closing of the magnetic latching relay, and the external load circuit is turned on. After the coil is powered off, the permanent magnet 21 can maintain the constant magnetic field, so as to maintain the position of the swing arm 232, and further maintain the closing state of the moving contact and the stationary contact, so as to maintain the closing state of the magnetic latching relay.

[0064] When a reverse voltage is applied to the coil 72, the permanent magnet 21 swings to the other side in the first horizontal direction X, and drives the armature 22 to swing to the other side, the armature 22 is lapped with the first yoke 24 and the second yoke 25, to form another constant magnetic field in the opposite direction. At the same time, the swing arm 232 of the injection molding part 23 swings with the permanent magnet 21, the swing arm 232 drives the push card 9 to move reversely in the first horizontal direction X, the push card 9 drives the moving contact 811 to move away from the stationary contact 821 (as shown in Figure 2 and Figure 3 ), so as to realize the opening of the magnetic latching relay, and the external load circuit is turned off. After the coil is powered off, the permanent magnet 21 can maintain the constant magnetic field in the opposite direction, so as to maintain the position of the swing arm 232, and further maintain the opening state of the moving contact and the stationary contact, so as to maintain the opening state of the magnetic latching relay.

[0065] The above is the description of the part structure of the magnetic latching relay and the principle of closing and opening of the magnetic latching relay. In actual use of the magnetic latching relay, it is usually necessary to monitor the closing and opening state of the magnetic latching relay to ensure the safety of the load circuit.

[0066] Based on this, the magnetic latching relay of the embodiment of the utility model can more easily monitor the closing and opening state thereof. As shown in Figure 2 and Figure 4 , the magnetic latching relay further comprises a fixing frame 3 connected to the base 1 and covering at least part of the magnetic circuit assembly 2. The fixing frame 3 is used for fixedly connecting the magnetic circuit assembly 2 to the base 1, and limiting the magnetic circuit assembly 2 in the vertical direction Z, so that the magnetic circuit assembly 2 can swing smoothly in the base 1. Continue to refer to Figure 2The fixed frame 3 is provided with a second shaft hole 31, and the other end of the rotating shaft of the injection molding piece 23 is connected to the second shaft hole 31 and can rotate in the second shaft hole 31. The fixed frame 3 is provided with a stand, and the base 1 is provided with a corresponding insertion hole, the stand of the fixed frame 3 is inserted into the insertion hole, and the fixed connection between the fixed frame 3 and the base 1 is realized. Since the fixed frame 3 can cover at least part of the magnetic circuit assembly 2 in the vertical direction Z, the fixed frame 3 can limit the magnetic circuit assembly 2 in the vertical direction Z, so as to prevent the magnetic circuit assembly 2 from being dislocated in the vertical direction Z and affecting the normal swing.

[0067] It should be noted that the first horizontal direction X, the second horizontal direction Y and the vertical direction Z in the embodiments of the utility model are perpendicular to each other respectively, and the first horizontal direction X, the second horizontal direction Y and the vertical direction Z are only technical terms for representing different directions and do not have special limiting meanings.

[0068] As shown in Figure 2 and Figure 4 , the fixed frame 3 is provided with an insertion structure 4, and the insertion structure 4 is located on one side of the magnetic circuit assembly 2 in the first horizontal direction X.

[0069] As shown in Figure 6 and Figure 7 , the magnetic latching relay in the embodiments of the utility model further comprises a monitoring moving spring 5 and a monitoring stationary spring 6, which are inserted into the insertion structure 4 in the vertical direction Z and have end portions extending out of the insertion structure 4.

[0070] When the first voltage is applied, the magnetic circuit assembly 2 moves to one side in the first horizontal direction X, and the end portion of the monitoring moving spring 5 and the end portion of the monitoring stationary spring 6 are closed. When the second voltage opposite to the first voltage is applied, the magnetic circuit assembly 2 moves to the other side in the opposite direction, and the end portion of the monitoring moving spring 5 and the end portion of the monitoring stationary spring 6 are disconnected.

[0071] In the embodiments of the utility model, the insertion structure 4 is arranged on the fixed frame 3, compared with the related art in which the micro switch is arranged on the base 1 to monitor, the assembly can be simplified, the accuracy and reliability of monitoring are further improved, the volume of the whole relay is reduced, and miniaturization is facilitated.

[0072] If the first voltage is a reverse voltage, the second voltage is a forward voltage, as shown in Figure 2 and Figure 3 , when the first voltage is applied, the magnetic latching relay is in an open state, and the monitoring moving spring 5 and the monitoring stationary spring 6 are in a closed state, as shown in Figure 4 and Figure 5As shown, when the second voltage is applied, the magnetic latching relay is in the closed state, and the monitoring moving spring 5 and the monitoring stationary spring 6 are in the open state, i.e. the closed and open states of the magnetic latching relay are opposite to the closed and open states of the monitoring moving spring 5 and the monitoring stationary spring 6, which can be called asynchronous monitoring. If the closed and open states of the magnetic latching relay are the same as the closed and open states of the monitoring moving spring 5 and the monitoring stationary spring 6, it can be called synchronous monitoring. Whether synchronous monitoring or asynchronous monitoring can be selected by setting the positions of the monitoring moving spring 5 and the monitoring stationary spring 6, for example, Figure 2 The intermediate insertion structure 4 is configured to make the monitoring moving spring 5 and the monitoring stationary spring 6 be located on the side of the magnetic circuit assembly 2 close to the contact assembly 8, which is asynchronous monitoring. If the insertion structure 4 is configured to make the monitoring moving spring 5 and the monitoring stationary spring 6 be located on the side of the magnetic circuit assembly 2 close to the coil assembly 7, it is synchronous monitoring. Those skilled in the art can set synchronous monitoring or asynchronous monitoring according to actual conditions. In the utility model, asynchronous monitoring is taken as an example for description. In some embodiments, the first voltage and the second voltage can be reverse pulse voltages.

[0073] In some embodiments, when the magnetic circuit assembly 2 moves close to the monitoring moving spring 5, the magnetic circuit assembly can push the end of the monitoring moving spring 5 to move in the direction close to the end of the monitoring stationary spring 6.

[0074] In some embodiments, as shown in Figure 3 and Figure 6 , the side of the magnetic circuit assembly 2 close to the monitoring moving spring 5 is provided with a convex part 231 protruding towards the monitoring moving spring 5. When the magnetic circuit assembly 2 moves close to the monitoring moving spring 5, the convex part 231 pushes the end of the monitoring moving spring 5 to move in the direction close to the end of the monitoring stationary spring 6.

[0075] As shown in Figure 6 and Figure 7 , in some embodiments, the convex part 231 is located at the bottom of the injection molding part 23 and is integrally formed with the injection molding part 23. In other embodiments, the convex part 231 can also be an independent component connected with the injection molding part 23 by means of bonding, clamping or screwing, which is not specially limited here.

[0076] The protrusion 231 corresponds to the end of the monitoring spring 5. When the magnetic circuit assembly 2 is not swinging, the protrusion 231 can contact the end of the monitoring spring 5. When the magnetic circuit assembly 2 swings towards the monitoring spring 5, the protrusion 231 can abut against the end of the monitoring spring 5, pushing the monitoring spring 5 towards the monitoring stationary spring 6 and bringing them into contact. When the magnetic circuit assembly 2 swings away from the monitoring spring 5, the protrusion 231 leaves the monitoring spring 5, and the monitoring spring 5 can move away from the monitoring stationary spring 6 by its own reaction force, thus breaking them apart. By providing a protrusion 231 protruding towards the monitoring spring 5 on the side of the magnetic circuit assembly 2 near the monitoring spring 5, when the magnetic circuit assembly 2 moves towards the monitoring spring 5, the protrusion 231 pushes the end of the monitoring spring 5 towards the end of the monitoring stationary spring 6, which can more accurately transmit the movement of the magnetic circuit assembly 2 to the monitoring spring 5, thereby improving the accuracy and reliability of monitoring.

[0077] In some embodiments, the protrusion 231 may be disposed on the push card 9, and... Figure 4 The difference is that the insertion structure 4 is located on the side of the fixing frame 3 near the push card 9 in the second horizontal direction Y. The monitoring moving spring 5 and the monitoring stationary spring 6 are inserted into the insertion structure 4, and the protrusion 231 corresponds to the end of the monitoring moving spring 5. When the magnetic circuit assembly 2 moves, it drives the push card 9 to move simultaneously. The protrusion 231 can abut against the end of the monitoring moving spring 5, causing the monitoring moving spring 5 to move towards the monitoring stationary spring 6 and make them contact each other.

[0078] In some embodiments, the monitoring moving spring 5 and the monitoring stationary spring 6 are spaced apart along the first horizontal direction X and located on one side of the magnetic circuit assembly 2 in the first horizontal direction X. The monitoring moving spring 5 is closer to the magnetic circuit assembly 2 than the monitoring stationary spring 6, and the protrusion 231 can be used to push the monitoring moving spring 5 to move closer to the monitoring stationary spring 6.

[0079] like Figure 2 As shown, in this embodiment of the present invention, the insertion structure 4 includes a first insertion portion 401 and a second insertion portion 402 adjacent to each other in the first horizontal direction X, as follows: Figure 11 As shown, the first insertion part 401 has a first insertion space S1 that extends through in the vertical direction Z, and the second insertion part 402 has a second insertion space S2 that extends through in the vertical direction Z. The first insertion space S1 is used to insert the monitoring moving spring 5, and the second insertion space S2 is used to insert the monitoring stationary spring 6.

[0080] In some embodiments, such as Figures 8 to 10 As shown, the insertion structure 4 has an insertion space extending through the vertical direction Z, such as... Figures 10 to 12 As shown, the insertion space is provided with a second partition 42 extending along the second horizontal direction Y, dividing the insertion space into a first insertion space S1 and a second insertion space S2 distributed along the first horizontal direction X (e.g.,Figure 11 As shown in

[0081] As shown in Figure 8 and Figure 9 The insertion structure 4 is arranged on one side of the fixed frame 3, and the insertion space is surrounded by the side wall of the insertion structure 4, as shown in Figure 10 and Figure 12 As shown in Figure 12 As shown in Figure 10 and Figure 11 The two ends of the second partition piece 42 are respectively connected with the opposite side walls of the insertion space in the second horizontal direction Y, so as to divide the insertion space into the first insertion space S1 and the second insertion space S2, and form the first insertion part 401 and the second insertion part 402. After the monitoring dynamic spring 5 and the monitoring static spring 6 are inserted into the two insertion spaces, the monitoring dynamic spring 5 and the monitoring static spring 6 can be separated to avoid contact between them.

[0082] In some embodiments, as shown in Figure 13 and Figure 14 The top ends of the first insertion part 401 and the second insertion part 402 are flush, the second insertion part 402 protrudes in the direction close to the base 1 in the vertical direction Z than the first insertion part 401, so that the insertion structure 4 is in a stepped shape, and the size of the second insertion space S2 in the vertical direction Z is greater than the size of the first insertion space S1 in the vertical direction Z, so as to increase the contact area between the monitoring static spring 6 and the inner wall of the second insertion space S2, prevent the monitoring static spring 6 from exiting the second insertion space S2, and improve the stability.

[0083] As shown in Figure 13 and Figure 14 In some embodiments, the second insertion part 402 includes a first lateral protruding part 4021 and a second lateral protruding part 4022, and the first lateral protruding part 4021 and the second lateral protruding part 4022 are respectively located on the two sides of the second insertion part 402 in the second horizontal direction Y and on the side of the fixed frame 3 facing the base 1.

[0084] As shown in Figure 14 In the second horizontal direction Y, the first lateral protruding part 4021 and the second lateral protruding part 4022 can be symmetrically arranged, and the size of the first lateral protruding part 4021 and the second lateral protruding part 4022 in the first horizontal direction X can be smaller than the size of the second insertion part 402.

[0085] As shown in Figure 15 andFigure 16 As shown, the base 1 is provided with a first insertion slot 11 and a second insertion slot 12, and a first lateral protrusion 4021 and a second lateral protrusion 4022 are respectively inserted into the first insertion slot 11 and the second insertion slot 12. Figure 17 As shown, in order to more clearly illustrate the assembly relationship between the insert slot and the lateral protrusion, Figure 17 The fixing bracket 3 was removed from the middle, from Figure 17 As can be seen, the first lateral protrusion 4021 is fitted into the first insertion slot 11, and the second lateral protrusion 4022 is fitted into the second insertion slot 12.

[0086] like Figure 17 As shown, the first insertion slot 11 and the second insertion slot 12 can limit and position the first lateral protrusion 4021 and the second lateral protrusion 4022, so that the insertion structure 4 can be installed more accurately and stably in the base 1. In addition, the insertion structure 4 can be pulled out from the first insertion slot 11 and the second insertion slot 12, making the installation more flexible and easy to adjust.

[0087] like Figure 13 As shown, the bottom of the first lateral protrusion 4021 (as shown) Figure 13 The thickness of the portion circled in the dashed line gradually decreases towards its bottom end, where thickness refers to the dimension of the first lateral protrusion 4021 along the first horizontal direction X. The bottom end of the first lateral protrusion 4021 can be designed with rounded corners. Therefore, the bottom of the first lateral protrusion 4021 is easier to insert into the first insertion slot 11. The structure of the second lateral protrusion 4022 can be the same as that of the first lateral protrusion 4021, and will not be described again here.

[0088] like Figures 10 to 12 As shown in the embodiment of this utility model, the insertion structure 4 further includes a first partition 41, which is disposed at the top of the first insertion space S1 and the second insertion space S2, and forms a first insertion port 43 and a second insertion port 44 at opposite ends of the diagonal of the insertion structure 4 with the inner walls of the first insertion space S1 and the second insertion space S2, respectively. The first insertion port 43 communicates with the first insertion space S1, and the second insertion port 44 communicates with the second insertion space S2.

[0089] like Figure 10As shown, the tops of the first separator 41 and the second separator 42 intersect in a cross shape, and there is a certain distance between the opposite sides of the first separator 41 in the second horizontal direction Y and the two side walls of the insertion space, so that the first separator 41, the second separator 42, and the side walls of the insertion space form an opening that penetrates in the vertical direction Z. The opening can be used to insert the leads of the monitoring moving spring 5 and the monitoring stationary spring 6, and the leads extend out of the insertion structure 4 from the opening. In order to keep the two leads as far apart as possible, the openings located at both ends of the diagonal of the rectangular outline of the insertion space can be selected as the first insertion port 43 and the second insertion port 44, respectively. Of course, the openings not located at both ends of the diagonal can also be selected as the first insertion port and the second insertion port, as long as the leads of the monitoring moving spring 5 and the monitoring stationary spring 6 do not contact each other.

[0090] like Figure 12 As shown, the size of the first partition 41 in the vertical direction Z is smaller than the size of the second partition 42, that is, the first partition 41 does not extend to the bottom of the insertion space in the vertical direction Z, so that the monitoring moving spring 5 and the monitoring stationary spring 6 can be accommodated in the first insertion space S1 and the second insertion space S2.

[0091] Continue to refer to Figure 12 The first insertion space S1 and the second insertion space S2 are provided with a plurality of wedge-shaped protrusions 47 on the sidewalls in the first horizontal direction X, so as to guide the insertion of the monitoring moving spring 5 and the monitoring stationary spring 6, and after the insertion is completed, to clamp the monitoring moving spring 5 and the monitoring stationary spring 6, preventing the monitoring moving spring 5 or the monitoring stationary spring 6 from moving in the vertical direction Z.

[0092] like Figure 10 As shown, the second partition 42 also has at least one first adhesive outlet 45 and at least one second adhesive outlet 46. The first adhesive outlet 45 communicates with the first insertion space S1, and the second adhesive outlet 46 communicates with the second insertion space S2. After the monitoring moving spring 5 and the monitoring stationary spring 6 are inserted, adhesive can be applied through the first adhesive outlet 45 and the second adhesive outlet 46 to bond and fix the monitoring moving spring 5 and the monitoring stationary spring 6 respectively. The number of the first adhesive outlet 45 and the second adhesive outlet 46 can be one or more, for example, two, three, four or more. Those skilled in the art can set the number according to the size of the second partition 42, and no special limitation is made here. In addition, besides the first insertion port 43 and the second insertion port 44, the other two openings can also be used as adhesive outlets.

[0093] like Figure 12As shown, the insert structure 4 can be integrally molded with the fixing frame 3. For example, if the fixing frame 3 is a plastic part, the insert structure 4 and the fixing frame 3 can be integrally molded using an injection molding process. This simplifies assembly, reduces space occupation, makes the positioning of the insert structure 4 more precise, and enhances the robustness of the insert structure 4. In addition, the entire fixing frame 3 has a simple structure and can prevent deformation, allowing for more precise movement of the monitoring spring 5 when the magnetic circuit assembly 2 swings.

[0094] like Figure 18 and Figure 19 As shown, the monitoring spring 5 includes a first lead-out portion 51, a first connecting portion 52, and a first spring portion 53 connected in sequence. The first connecting portion 52 is inserted into the first insertion space S1, the first lead-out portion 51 is inserted into the first insertion port 43 and extends out of the insertion space from the first insertion port 43, and the first spring portion 53 extends out of the first insertion space S1 and extends toward the base 1.

[0095] like Figure 22 and Figure 23 As shown, the top end of the first connecting portion 52 of the monitoring spring 5 abuts against the bottom surface of the first separator 41. After applying adhesive, the top surface of the first connecting portion 52 and the bottom surface of the first separator 41 can be bonded and fixed. Therefore, the first separator 41 not only serves as a separator but also serves to fix the first connecting portion 52. The dimension of the first connecting portion 52 of the monitoring spring 5 along the second horizontal direction Y can be equal to or slightly larger than the distance between the two side walls of the first insertion space S1, so that both sides of the monitoring spring 5 can contact or be interference-fitted with the two side walls of the first insertion space S1, thereby improving the stability of the first connecting portion 52 inserted into the insertion structure 4.

[0096] like Figure 23 As shown, the first lead-out portion 51 of the monitoring spring 5 is inserted into the first insertion port 43. The width dimension of the first lead-out portion 51 (the dimension along the second horizontal direction Y) is equal to or slightly larger than the width dimension of the first insertion port 43 (the dimension along the second horizontal direction Y), so that the two sides of the first lead-out portion 51 can contact or be interference-fitted with the side wall of the first insertion port 43, thereby improving the stability of the first lead-out portion 51 inserted into the first insertion port 43.

[0097] like Figure 20 and Figure 21 As shown, the monitoring spring 6 includes a second lead-out portion 61, a second connecting portion 62, and a second spring portion 63 connected in sequence; wherein, the second connecting portion 62 is inserted into the second insertion space S2, the second lead-out portion 61 is inserted into the second insertion port 44 and extends out of the insertion space from the second insertion port 44, and the second spring portion 63 extends out of the second insertion space S2 and extends toward the base 1.

[0098] like Figure 24As shown, the top end of the second connecting portion 62 of the monitoring spring 6 abuts against the bottom surface of the first separator 41. After applying adhesive, the top surface of the second connecting portion 62 can be bonded and fixed to the bottom surface of the first separator 41. Therefore, the first separator 41 not only serves as a separator but also serves to fix the second connecting portion 62. The dimension of the second connecting portion 62 of the monitoring spring 6 along the second horizontal direction Y can be equal to or slightly larger than the distance between the two side walls of the second insertion space S2, so that the two sides of the monitoring spring 6 can contact or be interference-fitted with the two side walls of the second insertion space S2, thereby improving the stability of the second connecting portion 62 inserted into the insertion structure 4.

[0099] like Figure 24 As shown, the second lead-out portion 61 of the monitoring stationary spring 6 is inserted into the second insertion port 44. The width dimension of the second lead-out portion 61 (the dimension along the second horizontal direction Y) is equal to or slightly larger than the width dimension of the second insertion port 44 (the dimension along the second horizontal direction Y), so that the two sides of the second lead-out portion 61 can contact or be interference-fitted with the side wall of the second insertion port 44, thereby improving the stability of the second lead-out portion 61 inserted into the second insertion port 44.

[0100] like Figure 18 and Figure 19 As shown, the first lead-out portion 51 has a first arc-shaped notch 511, as... Figure 23 As shown, the first arc-shaped notch 511 is located at the part where the first lead-out portion 51 contacts the first separator 41.

[0101] like Figure 20 and Figure 21 As shown, the second lead-out portion 61 may also have a second arc-shaped notch 611, such as... Figure 24 As shown, the second arc-shaped notch 611 is located at the point where the second lead-out portion 61 contacts the first separator 41.

[0102] For example, the first arc-shaped notch 511 and the second arc-shaped notch 611 can each be a semi-circular notch, such as... Figure 23 and Figure 24 As shown, the first arc-shaped notch 511 and the second arc-shaped notch 611 are higher than the top surface of the first separator 41 in the vertical direction Z. The first arc-shaped notch 511 and the second arc-shaped notch 611 can make way for the flowing fixing adhesive during dispensing, allowing the fixing adhesive to flow smoothly into the part of the first separator 41 that contacts the first lead-out portion 51 and the second lead-out portion 61. In this embodiment of the present invention, by providing arc-shaped notches on the monitoring moving spring 5 and the monitoring stationary spring 6 and providing a dispensing port on the insertion structure 4, the fixing adhesive can be fully penetrated, making the fixing of the monitoring moving spring 5 and the monitoring stationary spring 6 more secure and preventing loosening due to external forces.

[0103] like Figure 18As shown, the first lead-out portion 51 and the first connecting portion 52 of the monitoring spring 5 in this embodiment of the present invention can be a stacked structure to increase the strength of the insertion part.

[0104] like Figure 6 and Figure 18 As shown, the bottom end of the first spring portion 53 of the monitoring spring 5 is also provided with a bent portion 54 that bends toward the magnetic circuit assembly 2. When the monitoring spring 5 is far from the magnetic circuit assembly 2 in the first horizontal direction X, the distance between it and the magnetic circuit assembly 2 can be reduced by the bent portion 54, so that the movement of the magnetic circuit assembly 2 can be accurately and timely transmitted to the monitoring spring 5, ensuring the accuracy of monitoring.

[0105] like Figure 20 and Figure 21 As shown, in some embodiments, the second connecting portion 62 has at least one barb structure 621 on each of its opposite sides in the second horizontal direction Y. The barb structure 621 gradually protrudes outward from top to bottom.

[0106] The monitoring moving spring 5 and the monitoring stationary spring 6 are inserted upwards from the bottom of the insertion structure 4. When the monitoring moving spring 5 is inserted, the first lead-out part 51 moves upwards into the first insertion space S1, and then enters the first insertion port 43 and continues to move upwards until the first connecting part 52 is inserted into the first insertion space S1.

[0107] When the monitoring spring 6 is inserted, the second lead-out portion 61 moves upward into the second insertion space S2, then enters the second insertion port 44 and continues to move upward until the second connecting portion 62 is inserted into the second insertion space S2. During the process of the second connecting portion 62 entering the second insertion space S2 and moving upward, the tip of the barb structure 621 contacts the two side walls of the second insertion space S2. As the second connecting portion 62 moves upward, a pre-tightening force is gradually generated between the barb structure 621 and the two side walls of the second insertion space S2, and this pre-tightening force gradually increases with the upward movement of the barb structure 621. Therefore, the barb structure 621 enables the second connecting portion 62 to be inserted more stably into the second insertion space S2, preventing the second connecting portion 62 from retracting.

[0108] In this embodiment of the present invention, grooves that cooperate with the barb structure 621 can also be provided on the two side walls of the second insertion space S1. When the second connecting part 62 is inserted into the second insertion space S2, the barb structure 621 is engaged in the groove, further preventing the second connecting part 62 from exiting.

[0109] like Figure 19 and Figure 21 As shown, the width dimensions of the first reed portion 53 and the second reed portion 63 remain unchanged or gradually increase in the vertical direction Z.

[0110] like Figure 19As shown, taking the monitoring spring 5 as an example, the width of the first spring portion 53 of the monitoring spring 5 can be set to gradually increase in the vertical direction Z towards the direction away from the first connecting portion 52. The lower part of the first spring portion 53 of the monitoring spring 5 experiences greater force and the upper part experiences less force. Therefore, designing the first connecting portion 52 to be narrower at the top and wider at the bottom can improve the uniformity of the force on the first connecting portion 52 and avoid stress concentration that could lead to a decrease or loss of contact pressure.

[0111] like Figure 21 As shown, taking the monitoring stationary spring 6 as an example, the width of the second spring portion 63 of the monitoring stationary spring 6 can be set to remain constant in the vertical direction Z. This setting can avoid stress concentration, effectively prevent fatigue failure caused by long-term stress on the monitoring stationary spring 6, and prevent the contact pressure from decreasing or being lost.

[0112] like Figure 20 and Figure 21 As shown, in some embodiments, the second reed portion 63 of the monitoring stationary spring 6 has a bifurcated structure, and two monitoring stationary contacts 631 are provided at the bottom of the bifurcated structure. Figure 18 and Figure 19 As shown, the bottom of the monitoring spring 5 is provided with two monitoring moving contacts 531, and the two monitoring moving contacts 531 correspond one-to-one with the two monitoring stationary contacts 631.

[0113] In this embodiment of the present invention, when the magnetic circuit assembly 2 pushes the monitoring moving spring 5 to move, the two monitoring moving contacts 531 of the monitoring moving spring 5 contact with the two monitoring stationary contacts 631 of the monitoring stationary spring 6, thereby realizing the closing of the magnetic latching relay.

[0114] like Figure 13 As shown, in some embodiments, the first reed portion 53 of the monitoring moving spring 5 may extend obliquely from the first connecting portion 52 toward the second reed portion 63 of the monitoring stationary spring 6. For example... Figure 13 As shown, the first center line L1 of the monitoring moving contact 531 and the second center line L2 of the monitoring stationary contact 631 form an angle α. When the magnetic circuit assembly 2 pushes the first reed portion 53 of the monitoring moving spring 5 to move, the trajectory of the monitoring moving contact 531 is an arc, which changes the position of the center of the monitoring moving contact 531 in the vertical direction Z. The first reed portion 53 is set to extend inclined away from the second reed portion 63, so that after the monitoring moving contact 531 moves, its center can correspond to the center of the monitoring stationary contact 631, realizing the center contact of the two contacts when closed, and ensuring the stability of their closure.

[0115] In this embodiment of the present invention, the monitoring moving spring 5 has two contacts, and the thickness of the first spring portion 53 of the monitoring moving spring 5 can be set to be thinner than that of the monitoring stationary spring 6. The first spring portion 53 of the monitoring moving spring 5 is elastic, which makes it easy for the magnetic circuit assembly 2 to push the first spring portion 53 with a small force, thereby improving the accuracy of monitoring and avoiding deformation and mechanical fatigue failure of the monitoring moving spring 5 caused by the thrust.

[0116] In this embodiment of the invention, the monitoring stationary spring 6 has two contacts, such as... Figure 20 As shown, the second reed portion 63 has a bifurcated structure, that is, the second reed portion 63 has two reeds with a gap between them. Two monitoring stationary contacts 631 are respectively located at the bottom of the two reeds.

[0117] In this embodiment of the invention, dual contacts are respectively provided on the monitoring moving spring 5 and the monitoring stationary spring 6. When a foreign object exists between one set of moving and stationary contacts and they cannot make normal contact, the other set of moving and stationary contacts can make normal contact, ensuring the reliability of monitoring. The second spring portion 63 of the monitoring stationary spring 6 is designed as a bifurcated structure. When the monitoring moving spring 5 tilts during the pushing process, it can still ensure normal contact of the dual contacts with a small force, improving the reliability of monitoring.

[0118] like Figure 20 As shown, the monitoring stationary spring 6 in this embodiment of the present invention is further provided with a reinforcing part 64, located at the top end of the second connecting part 62, and disposed opposite to the second lead-out part 61 in the second horizontal direction Y. Figure 24 As shown, after the monitoring spring 6 is inserted into the second insertion space S2, the reinforcing part 64 can be inserted into the opening opposite to the second insertion port 44 formed by the first separator 41, the second separator 42, and the sidewall of the insertion space. The size of the reinforcing part 64 in the second horizontal direction Y is equal to or slightly larger than the size of the opening, so that the reinforcing part 64 contacts or is press-fitted with the two sidewalls of the opening. The top of the reinforcing part 64 is lower than the top surface of the second separator 42 to facilitate adhesive dispensing.

[0119] In this embodiment of the invention, the insertion structure 4 is mounted on the fixing frame 3, and the monitoring moving spring 5 and the monitoring stationary spring 6 are inserted into the insertion structure 4, simplifying assembly and reducing space occupation. Since the monitoring moving spring 5 is pushed by the magnetic circuit assembly 2, the monitoring moving spring 5 and the magnetic circuit assembly 2 move synchronously, making the monitoring of the monitoring moving spring 5 and the monitoring stationary spring 6 more accurate. The fixing frame 3 has a simple overall structure and is not easily deformed, further improving the accuracy of the magnetic circuit assembly 2 in pushing the monitoring moving spring 5. Furthermore, compared with the prior art, this embodiment of the invention does not require directly taking signals from the high-voltage side at the load lead-out end, but directly acts on the internal low-voltage signal interruption, eliminating the need to consider the isolation between high-voltage and low-voltage points, simplifying circuit design, and making it safer and more reliable.

[0120] It is understood that the various embodiments / implementations provided by this utility model can be combined with each other without creating contradictions, and will not be described one by one here.

[0121] In this embodiment of the invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0122] In the description of the embodiments of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0123] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0124] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnetic latching relay, characterized in that, include: Base; A magnetic circuit assembly is mounted on the base and is capable of swinging in a first horizontal direction; A mounting bracket, connected to the base and covering at least a portion of the magnetic circuit assembly, the mounting bracket having an insertion structure; A monitoring moving spring and a monitoring stationary spring are inserted vertically into the insertion structure and their ends extend out of the insertion structure; wherein, the vertical direction is perpendicular to the first horizontal direction; When a first voltage is applied, the magnetic circuit assembly moves to one side in the first horizontal direction, driving the end of the monitoring moving spring to close with the end of the monitoring stationary spring; when a second voltage opposite to the first voltage is applied, the magnetic circuit assembly moves to the opposite side, and the end of the monitoring moving spring disconnects from the end of the monitoring stationary spring.

2. The magnetic latching relay according to claim 1, characterized in that, The magnetic circuit assembly has a protrusion on the side near the monitoring moving spring that protrudes toward the monitoring moving spring; when the magnetic circuit assembly moves toward the monitoring moving spring, the protrusion pushes the end of the monitoring moving spring toward the end of the monitoring stationary spring.

3. The magnetic latching relay according to claim 2, characterized in that, The magnetic circuit assembly includes a permanent magnet, an armature, and an injection molded part; the injection molded part covers the permanent magnet and part of the armature; the injection molded part is oscillatingly connected to the base and the fixing frame; the protrusion is integrally formed with the injection molded part.

4. The magnetic latching relay according to claim 1, characterized in that, The monitoring moving spring and the monitoring stationary spring are spaced apart along the first horizontal direction and located on one side of the magnetic circuit assembly in the first horizontal direction, with the monitoring moving spring being closer to the magnetic circuit assembly than the monitoring stationary spring.

5. The magnetic latching relay according to claim 1, characterized in that, The insertion structure includes a first insertion portion and a second insertion portion adjacent to each other in the first horizontal direction. The first insertion portion has a first insertion space extending through in the vertical direction, and the second insertion portion has a second insertion space extending through in the vertical direction. The first insertion space is used to insert the monitoring moving spring, and the second insertion space is used to insert the monitoring stationary spring.

6. The magnetic latching relay according to claim 5, characterized in that, The tops of the first insertion part and the second insertion part are flush. The second insertion part protrudes in the vertical direction from the first insertion part toward the base, making the insertion structure stepped. The dimension of the second insertion space in the vertical direction is larger than the dimension of the first insertion space in the vertical direction.

7. The magnetic latching relay according to claim 6, characterized in that, The second insertion part includes a first lateral protrusion and a second lateral protrusion, the first lateral protrusion and the second lateral protrusion are respectively located on both sides of the second insertion part in the second horizontal direction and on the side of the fixing frame facing the base; The base is provided with a first insertion slot and a second insertion slot arranged opposite to each other along the second horizontal direction, and the first lateral protrusion and the second lateral protrusion are respectively inserted into the first insertion slot and the second insertion slot; The second horizontal direction is perpendicular to both the first horizontal direction and the vertical direction.

8. The magnetic latching relay according to any one of claims 5 to 7, characterized in that, The insertion structure further includes a first partition, which is disposed at the top of the first insertion space and the second insertion space, and forms a first insertion port and a second insertion port at opposite ends of the diagonal of the insertion structure with the inner walls of the first insertion space and the second insertion space, respectively. The first insertion port is connected to the first insertion space, and the second insertion port is connected to the second insertion space.

9. The magnetic latching relay according to claim 8, characterized in that, The first separator has at least one first glue port and at least one second glue port, the first glue port being connected to the first insertion space and the second glue port being connected to the second insertion space.

10. The magnetic latching relay according to claim 9, characterized in that, The monitoring spring includes a first lead-out portion, a first connecting portion, and a first spring portion connected in sequence; wherein, the first connecting portion is inserted into the first insertion space, the first lead-out portion is inserted into the first insertion port and extends out of the first insertion port into the first insertion space, and the first spring portion extends out of the first insertion space and extends toward the base. The monitoring spring includes a second lead-out portion, a second connecting portion, and a second spring portion connected in sequence; wherein, the second connecting portion is inserted into the second insertion space, the second lead-out portion is inserted into the second insertion port and extends out of the second insertion space from the second insertion port, and the second spring portion extends out of the second insertion space and extends toward the base.

11. The magnetic latching relay according to claim 10, characterized in that, The first lead-out portion has a first arc-shaped notch located at the point where the first lead-out portion contacts the first separator, to allow for clearance of the flowing fixative during dispensing; and / or, The second lead-out portion has a second arc-shaped notch located at the part where the second lead-out portion contacts the first separator, so as to make way for the flowing fixative during dispensing.

12. The magnetic latching relay according to claim 10, characterized in that, The second connecting part has at least one barb structure on each of its opposite sides in the second horizontal direction.

13. The magnetic latching relay according to claim 10, characterized in that, The width dimensions of the first reed portion and the second reed portion remain constant or gradually increase in the vertical direction.

14. The magnetic latching relay according to claim 10, characterized in that, The second reed portion of the monitoring stationary spring has a bifurcated structure, and two monitoring stationary contacts are provided at the bottom of the bifurcated structure; The bottom of the monitoring spring is provided with two monitoring moving contacts, which correspond one-to-one with the two monitoring stationary contacts.

15. The magnetic latching relay according to claim 10, characterized in that, The first reed portion of the monitoring moving spring extends obliquely from the first connecting portion toward the second reed portion away from the monitoring stationary spring.

16. The magnetic latching relay according to any one of claims 1 to 7, characterized in that, The insertion structure is integrally formed with the fixing frame.

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