Magnetic latching relay

Abstract

The utility model provides a magnetic latching relay. The magnetic latching relay comprises a base, a fixing frame, a monitoring movable spring and a monitoring static spring. Wherein the base is provided with an inserting groove; the fixing frame is arranged on the base and provided with an inserting structure, and the inserting structure is arranged to be inserted into the inserting groove. 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 plug-in mounting structure of the magnetic latching relay can be more accurately arranged in the base, stress deformation in the assembling process is avoided, and the accuracy of monitoring the working state of the magnetic latching relay by the monitoring movable spring and the monitoring static spring is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a magnetic latching relay. Background Art

[0002] The magnetic latching relay is a type of relay that switches the load circuit on and off. The normally closed or normally open state of the magnetic latching relay depends on the permanent magnet, and the switching state is triggered by different electrical signals.

[0003] In the prior art, it is necessary to monitor the open and closed states of the contacts of the magnetic latching relay to determine its working state. However, the reliability of the state monitoring of the magnetic latching relay needs to be improved.

[0004] The above information disclosed in the background technology section is only used to enhance the understanding of the background of the present invention, and therefore it may include information that does not constitute related technology known to ordinary technicians in the field. Utility Model Content

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

[0006] The magnetic latching relay of the utility model embodiment comprises a base, a fixing frame, a monitoring spring and a monitoring static spring. The base is provided with an insertion slot; the fixing frame is arranged on the base, the fixing frame is provided with an insertion structure, and the insertion structure is configured to be inserted into the insertion slot; the monitoring spring and the monitoring static spring are inserted into the insertion structure in a vertical direction and their ends extend out of the insertion structure respectively.

[0007] According to some embodiments of the present invention, at least one side of the insertion structure is provided with a lateral protrusion, and the lateral protrusion is inserted into the insertion slot.

[0008] According to some embodiments of the utility model, the lateral protrusion includes a first lateral protrusion, which is located on one side of the insertion structure in the second horizontal direction; the insertion slot includes a first insertion slot, which corresponds to the first lateral protrusion in the vertical direction, so that the first lateral protrusion is inserted into the first insertion slot; wherein the second horizontal direction is perpendicular to the vertical direction.

[0009] According to some embodiments of the utility model, the lateral protrusion also includes a second lateral protrusion, which is located on the side of the insertion structure opposite to the first lateral protrusion in the second horizontal direction; the insertion slot also includes a second insertion slot, which corresponds to the second lateral protrusion in the vertical direction, so that the second lateral protrusion is inserted into the second insertion slot.

[0010] According to some embodiments of the utility model, it also includes: a magnetic circuit assembly, which is arranged on the base and can swing in a first horizontal direction to drive the monitoring movable spring to move, so that the monitoring movable spring and the monitoring static spring are closed or separated, and the fixed frame covers at least part of the magnetic circuit assembly; wherein the first horizontal direction is perpendicular to the vertical direction.

[0011] According to some embodiments of the utility model, the lateral protrusion includes a third lateral protrusion, and the third lateral protrusion is located on the side of the insertion structure opposite to the magnetic circuit assembly in the first horizontal direction; the insertion slot includes a third insertion slot, and the third insertion slot corresponds to the third lateral protrusion in the vertical direction, so that the third lateral protrusion is inserted into the third insertion slot.

[0012] According to some embodiments of the utility model, the insertion structure includes a first insertion part and a second insertion part adjacent to each other in the first horizontal direction, the first insertion part has a first insertion space extending in the vertical direction, the second insertion part has a second insertion space extending in the vertical direction, the first insertion space is used to insert the monitoring dynamic spring, and the second insertion space is used to insert the monitoring static spring; wherein, 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.

[0013] According to some embodiments of the present invention, the third lateral protrusion is located on a side of the second inserting portion away from the first inserting portion, and in the second horizontal direction, a size of the third lateral protrusion is smaller than a size of the second inserting portion.

[0014] According to some embodiments of the present invention, the thickness of the bottom of at least one of the first lateral protrusion, the second lateral protrusion and the third lateral protrusion gradually decreases toward their respective bottom ends; and / or, in the first horizontal direction, the sizes of the first lateral protrusion and the second lateral protrusion are respectively smaller than the size of the second plug-in portion.

[0015] According to some embodiments of the utility model, the top ends of the first lateral protrusion, the second lateral protrusion and the third lateral protrusion are lower than or flush with the bottom surface of the fixing frame facing the magnetic circuit assembly; and / or the bottom end of the second plug-in portion protrudes from or is flush with the bottom ends of the first lateral protrusion, the second lateral protrusion and the third lateral protrusion.

[0016] It can be seen from the above technical solution that the utility model has at least one of the following advantages and positive effects:

[0017] 1. In the embodiment of the utility model, an insertion slot is provided on the base, and the insertion slot has a guiding and limiting function for the insertion structure, and the insertion structure can be pushed and pulled along the insertion slot, so that the insertion structure can be more accurately arranged in the base, and stress deformation during the assembly process is avoided, thereby improving the accuracy of monitoring the working status of the magnetic latching relay by monitoring the dynamic spring and the static spring.

[0018] 2. In the embodiment of the utility model, at least one side of the plug-in structure is provided with a lateral protrusion, and the lateral protrusion is inserted into the plug-in slot. The plug-in slot has a guiding and positioning function for the lateral protrusion, so that the plug-in structure can be installed in the base more accurately and stably, and the installation is more flexible and simple.

[0019] 3. In the embodiment of the utility model, the thickness of the bottom of at least one of the first lateral protrusion, the second lateral protrusion and the third lateral protrusion gradually decreases towards the bottom end of each, making it easier to insert into the corresponding insertion slot.

[0020] 4. In the embodiment of the utility model, the bottom end of the second plug-in portion protrudes from or is flush with the bottom ends of the first lateral protrusion, the second lateral protrusion and the third lateral protrusion, so as to facilitate plug-in and minimize the space occupied by the plug-in structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the magnetic latching relay with the cover removed according to some embodiments of the utility model;

[0023] Figure 2 It is a top view schematic diagram of a magnetic latching relay in an off state with the cover removed, shown in some embodiments of the utility model;

[0024] Figure 3 It is a top view schematic diagram of a magnetic latching relay in a closed state with the cover removed according to some embodiments of the utility model;

[0025] Figure 4 It is a top view schematic diagram of a magnetic latching relay in a closed state without a cover, a fixing frame and an injection molded part according to some embodiments of the utility model;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the base shown in some embodiments of the utility model;

[0027] Figure 6It is a three-dimensional schematic diagram of the assembled fixing frame, the monitoring dynamic spring and the monitoring static spring shown in some embodiments of the utility model;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure after the magnetic circuit assembly, the fixing frame, the monitoring dynamic spring and the monitoring static spring are assembled according to some embodiments of the present utility model;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of a magnetic latching relay according to some embodiments of the present utility model, wherein the fixing frame has not yet been installed on the base;

[0030] Fig. 9 It is a top view schematic diagram of the first lateral protrusion and the second lateral protrusion of the plug-in structure shown in some embodiments of the present utility model respectively cooperating with the first plug-in slot and the second plug-in slot of the base for plug-in;

[0031] Fig.10 It is a three-dimensional schematic diagram of the assembled fixing frame, the monitoring dynamic spring and the monitoring static spring shown in some embodiments of the utility model;

[0032] Fig.11 A schematic top view of the first lateral protrusion, the second lateral protrusion and the third lateral protrusion of the plug-in structure shown in some embodiments of the present utility model respectively plugged in with the first plug-in slot, the second plug-in slot and the third plug-in slot of the base;

[0033] Fig.12 Schematic diagram of the insertion structure of the fixing frame shown in some embodiments of the utility model (top view);

[0034] Fig.13 For along Fig.12 Cross-section view of AA.

[0035] Description of reference numerals:

[0036] 1. Base; 11. First insertion slot; 12. Second insertion slot; 13. Third insertion slot; 2. Magnetic circuit assembly; 21. Permanent magnet; 22. Armature; 23. Injection molded part; 232. Swing arm; 24. First yoke; 25. Second yoke; 3. Fixing frame; 31. Second axial hole; 4. Insertion structure; 401. First insertion part; 402. Second insertion part; 4021. First lateral protrusion; 4022. Second lateral protrusion; 4023. Third lateral protrusion; 41. First partition; 42. Second partition; 43. First insertion port ;44, second insertion port;45, first glue dispensing port;46, second glue dispensing port;5, monitor movable spring;531, monitor movable contact;6, monitor static spring;631, monitor static contact;7, coil assembly;71, coil frame;72, coil;8, contact assembly;81, movable spring piece;811, movable contact;812, movable spring lead-out terminal;82, static spring piece,821, static contact;822, static spring lead-out terminal;9, push card;X, first horizontal direction;Y, second horizontal direction;Z, vertical direction;S1, first insertion space;S2, second insertion space. DETAILED DESCRIPTION

[0037] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of 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 comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0038] like Figure 1 As shown, the magnetic holding relay of the embodiment of the utility model includes a base 1 and a cover body (not shown in the figure), the base 1 has a accommodating space for arranging various components of the magnetic holding relay, and the cover body covers the base 1 to protect the components in the base 1.

[0039] like Figures 1 to 4 As shown, the magnetic latching relay further includes a coil assembly 7, a magnetic circuit assembly 2 and a contact assembly 8, which are arranged on the base 1 and placed in the accommodation space. The coil assembly 7 includes a coil frame 71, an iron core (not shown in the figure) and a coil 72, wherein the iron core is arranged in the coil frame 71 and the coil 72 is wound on the surface of the coil frame 71.

[0040] The magnetic circuit assembly 2 is arranged on the base 1 and can swing in the first horizontal direction X. In the embodiment of the utility model, Figure 4 and Fig. 9As shown, the magnetic circuit assembly 2 may include a permanent magnet 21, an armature 22 and an injection molded part 23. The injection molded part 23 is coated on the permanent magnet 21 and a 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 molded part 23 is swingably connected to the base 1, that is, the injection molded part 23 is provided with a rotating shaft, and the base 1 is provided with a first shaft hole (not shown in the figure), and one end of the rotating shaft of the injection molded part 23 is connected to the first shaft hole and can rotate in the first shaft hole. Figure 4 As shown, the injection molded part 23 also includes an integrally molded swing arm 232 .

[0041] The magnetic circuit assembly 2 may further include a first yoke 24 and a second yoke 25 . The first yoke 24 and the second yoke 25 are located in the base 1 and at two ends of the coil assembly 7 , and are respectively connected to two ends of the iron core.

[0042] like Figure 2 As shown, the contact assembly 8 includes a moving spring 81 and a stationary spring 82. The moving spring 81 is provided with a moving contact 811, and the stationary spring 82 is provided with a stationary contact 821. The moving contact 811 and the stationary contact 821 are correspondingly arranged in the first horizontal direction X. Figure 2 The magnetic latching relay also includes a dynamic spring lead-out terminal 812 and a static spring lead-out terminal 822, which are respectively arranged outside the base 1, and the dynamic spring lead-out terminal 812 is connected to the dynamic spring piece 81, and the static spring lead-out terminal 822 is connected to the static spring piece 82, so as to realize the connection between the dynamic spring piece 81 and the static spring piece 82 and the load circuit.

[0043] like Figures 2 to 4 As shown, the magnetic latching relay of the utility model embodiment further includes a push card 9, which is movably arranged on the base 1. One end of the push card 9 is connected to the swing arm 232 of the injection molded part 23, and the other end is connected to one end of the moving reed 81 provided with a moving contact 811.

[0044] 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 at the same time drives the armature 22 to swing, and the armature 22 overlaps with the first yoke 24 and the second yoke 25, so that the permanent magnet 21, the armature 22, the first yoke 24, the iron core and the second yoke 25 form a constant magnetic field. At the same time, the swing arm 232 of the injection molded part 23 swings in the same direction as the permanent magnet 21, and the swing arm 232 drives the push card 9 to move in the first horizontal direction X, and the push card 9 drives the moving spring 81 to move in the direction close to the static spring 82, so that the moving contact 811 and the static contact 821 are closed (such as Figure 3 and Figure 4As shown in FIG. 1 , the magnetic latching relay is closed and the external load circuit is turned on. When the coil is powered off, the permanent magnet 21 can maintain the constant magnetic field, thereby maintaining the position of the swing arm 232, thereby maintaining the moving and static contacts in a closed state, and keeping the magnetic latching relay in a closed state.

[0045] When a reverse voltage is applied to the coil, the permanent magnet 21 swings to the other side opposite to the first horizontal direction X, and drives the armature 22 to swing to the other side. The armature 22 overlaps with the first yoke 24 and the second yoke 25, forming another reverse constant magnetic field. At the same time, the swing arm 232 of the injection molded part 23 swings with the permanent magnet 21, and the swing arm 232 drives the push card 9 to move in the opposite direction in the first horizontal direction X. The push card 9 drives the moving spring 81 to move away from the static spring 82, so that the moving contact 811 is disconnected from the static contact 821 (such as Figure 2 As shown in the figure, the magnetic latching relay is disconnected and the external load circuit is disconnected. When the coil is powered off, the permanent magnet 21 can maintain the reverse constant magnetic field, thereby maintaining the position of the swing arm 232, and further maintaining the moving and static contacts in the disconnected state, so that the magnetic latching relay is in the disconnected state.

[0046] The above is an explanation of the partial structure of the magnetic latching relay and the principle of closing and opening of the magnetic latching relay. When the magnetic latching relay is actually used, it is usually necessary to monitor the closing and opening states of the magnetic latching relay to ensure the safety of the load circuit.

[0047] Based on this, the magnetic latching relay of the embodiment of the utility model can more easily monitor its closed and open states and improve the reliability of monitoring.

[0048] like Figure 4 and Figure 5 As shown, the base 1 is provided with an insertion slot, and the insertion slot can extend along the vertical direction Z. Figures 1 to 3 As shown, the magnetic latching relay of the embodiment of the utility model further includes a fixing frame 3, which is connected to the base 1 and covers at least a portion of the magnetic circuit assembly 2. The fixing frame 3 is used to fix the magnetic circuit assembly 2 to the base 1 and to limit the position of the magnetic circuit assembly 2 in the vertical direction Z so that the magnetic circuit assembly 2 can swing smoothly in the base 1. Figure 2 The fixing frame 3 is provided with a second shaft hole 31, and the other end of the rotating shaft of the injection molded part 23 is connected to the second shaft hole 31 and can rotate in the second shaft hole 31. The fixing frame 3 is provided with a column, and the corresponding position of the base 1 is provided with a socket, and the column of the fixing frame 3 is inserted into the socket to achieve a fixed connection between the fixing frame 3 and the base 1. Since the fixing frame 3 can cover at least part of the magnetic circuit component 2 in the vertical direction Z, the fixing frame 3 can limit the magnetic circuit component 2 in the vertical direction Z to prevent the magnetic circuit component 2 from being misplaced in the vertical direction Z and affecting its normal swing.

[0049] It should be noted that the first horizontal direction X, the second horizontal direction Y and the vertical direction Z in the embodiment of the present invention are respectively perpendicular to each other, and the first horizontal direction X, the second horizontal direction Y and the vertical direction Z are merely technical terms indicating different directions and have no special limiting meaning.

[0050] like Figure 1 and Figure 2 As shown, the fixing frame 3 is provided with an inserting structure 4, and the inserting structure 4 is configured to be inserted into the inserting slot. Figure 6 and Figure 7 As shown, the magnetic latching relay of the embodiment of the utility model also includes a monitoring dynamic spring 5 and a monitoring static spring 6, which are inserted into the insertion structure 4 along the vertical direction Z and the ends extend out of the insertion structure 4. The closed and open states of the monitoring dynamic spring 5 and the monitoring static spring 6 are used to monitor the working state of the magnetic latching relay.

[0051] The working state of the magnetic latching relay can be understood as the closed and open states of the moving contact 811 on the moving spring piece 81 and the static contact 821 on the static spring piece 82. The working state of the magnetic latching relay is monitored by monitoring the moving spring 5 and the static spring 6. When the moving contact 811 and the static contact 821 are in the closed state, the monitoring moving spring 5 and the static spring 6 can be in the closed or open state. When the moving contact 81 and the static contact 821 are in the closed state, the monitoring moving spring 5 and the static spring 6 can be in the open or closed state.

[0052] In the embodiment of the utility model, the insertion slot has a guiding and limiting function for the insertion structure 4, and the insertion structure 4 can be pushed and pulled along the insertion slot, so that the insertion structure 4 can be more accurately arranged in the base 1, and avoid stress deformation during the assembly process, thereby improving the accuracy of monitoring the working status of the magnetic holding relay by monitoring the dynamic spring 5 and the static spring 6.

[0053] In some embodiments, Figure 7 As shown, the plug-in structure 4 is located on one side of the magnetic circuit assembly 2 in the first horizontal direction X. When a first voltage is applied, the magnetic circuit assembly 2 moves to one side in the first horizontal direction X, driving the end of the monitoring movable spring 5 and the end of the monitoring static spring 6 to close. When a second voltage opposite to the first voltage is applied, the magnetic circuit assembly 2 moves to the other side, and the end of the monitoring movable spring 5 and the end of the monitoring static spring 6 are disconnected. Since the movement of the magnetic circuit assembly 2 can realize the closing and disconnection of the moving contact 811 and the static contact 821, the state of the moving contact 811 and the static contact 821 can be judged by the closing and disconnecting state of the monitoring movable spring 5 and the monitoring static spring 6.

[0054] In other embodiments, the closing and opening of the monitoring movable spring 5 and the monitoring static spring 6 can also be achieved by other means. For example, a linkage can be set between the monitoring movable spring 5 and the movable spring piece 8 so that the monitoring movable spring 5 and the movable spring piece 8 move synchronously to monitor the working status of the relay.

[0055] like Figure 6 As shown, in some embodiments, a monitoring moving contact 531 is provided at the end of the monitoring moving spring 5, and a monitoring static contact 631 is provided at the end of the monitoring static spring 6. The closing and opening of the monitoring moving spring 5 and the monitoring static spring 6 can be the closing and opening of the monitoring moving contact 531 and the monitoring static contact 631.

[0056] It should be noted that if the first voltage is a reverse voltage, the second voltage is a forward voltage. Figure 2 As shown, when the first voltage is applied, the magnetic latching relay is in an open state, and the monitoring dynamic spring 5 and the monitoring static spring 6 are in a closed state, as shown in FIG. Figure 3 and Figure 4 As shown, when the second voltage is applied, the magnetic latching relay is in a closed state, and the monitoring movable spring 5 and the monitoring static spring 6 are in an open state, that is, the closed and open states of the magnetic latching relay are opposite to the closed and open states of the monitoring movable spring 5 and the monitoring static 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 movable spring 5 and the monitoring static spring 6, this can be called synchronous monitoring. Synchronous monitoring or asynchronous monitoring can be selected by setting the positions of the monitoring movable spring 5 and the monitoring static spring 6. Asynchronous monitoring is used as an example for explanation in the utility model. In some embodiments, the first voltage and the second voltage can be reverse pulse voltages.

[0057] like Figures 8 to 10 As shown, at least one side of the insertion structure 4 is provided with a lateral protrusion, and the lateral protrusion is inserted into the insertion slot. The lateral protrusion protrudes laterally from the insertion structure and is used to be inserted into the insertion slot to further fix the insertion structure. The insertion slot has a guiding and positioning function for the lateral protrusion, so that the insertion structure 4 can be installed in the base 1 more accurately and stably, and the reliability of the contact between the monitoring dynamic spring 5 and the monitoring static spring 6 is further improved. And the lateral protrusion can be pulled out from the insertion slot, making the installation more flexible and easy to adjust.

[0058] like Figure 8 and Fig. 9 As shown, in order to more clearly show the assembly relationship between the insertion slot and the lateral protrusion, Fig. 9 The fixing frame 3 is removed. In some embodiments, the lateral protrusion includes a first lateral protrusion 4021, and the first lateral protrusion 4021 is located on one side of the insertion structure 4 in the second horizontal direction Y. Figure 5As shown, the insertion slot includes a first insertion slot 11 , and the first insertion slot 11 corresponds to the first lateral protrusion 4021 in the vertical direction Z, so that the first lateral protrusion 4021 is inserted into the first insertion slot 11 .

[0059] like Fig.10 As shown, in some embodiments, the lateral protrusion further includes a second lateral protrusion 4022, and the second lateral protrusion 4022 is located on a side of the insertion structure 4 opposite to the first lateral protrusion 4021 in the second horizontal direction Y. Figure 5 , the insertion slot also includes a second insertion slot 12, and the second insertion slot 12 corresponds to the second lateral protrusion 4022 in the vertical direction Z, so that the second lateral protrusion 4022 is inserted into the second insertion slot. In other words, the insertion structure 4 is provided with lateral protrusions on both sides in the second horizontal direction Y, and 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 in the base 1 more accurately and stably. In addition, the insertion structure 4 can be pulled out from the first insertion slot 11 and the second insertion slot 12, so that the installation is more flexible and easy to adjust.

[0060] In some embodiments, the shapes and sizes of the first lateral protrusion 4021 and the second lateral protrusion 4022 can be exactly the same. Of course, the shapes and sizes of the two can also be different, as long as they can be smoothly inserted into the corresponding insertion slot, and no special limitation is made here. In some embodiments, in the second horizontal direction Y, the first lateral protrusion 4021 and the second lateral protrusion 4022 can be symmetrically arranged.

[0061] In some embodiments, Fig.11 As shown, the lateral protrusion may further include a third lateral protrusion 4023, and the third lateral protrusion 4023 is located on a side of the insertion structure 4 opposite to the magnetic circuit assembly 2 in the first horizontal direction X. The insertion slot includes a third insertion slot 13, and the third insertion slot 13 corresponds to the third lateral protrusion 4023 in the vertical direction Z, so that the third lateral protrusion 4023 is inserted into the third insertion slot 13.

[0062] In some embodiments, the lateral protrusions may include at least one of a first lateral protrusion 4021, a second lateral protrusion 4022, and a third lateral protrusion 4023, which can be configured by those skilled in the art according to actual conditions and are not particularly limited herein.

[0063] like Figure 2 and Fig.13As shown, in the embodiment of the utility model, the insertion structure 4 includes a first insertion part 401 and a second insertion part 402 adjacent to each other in the first horizontal direction X, the first insertion part 401 has a first insertion space S1 which passes through in the vertical direction Z, the second insertion part 402 has a second insertion space S2 which passes through in the vertical direction Z, the first insertion space S1 is used for inserting and monitoring the dynamic spring 5, and the second insertion space S2 is used for inserting and monitoring the static spring 6.

[0064] In some embodiments, Fig.12 As shown, the insertion structure 4 has an insertion space that runs through in the vertical direction Z, and a second partition 42 extending in the second horizontal direction Y is provided in the insertion space, dividing the insertion space into a first insertion space S1 and a second insertion space S2 distributed in the first horizontal direction X. The portion of the insertion structure 4 that encloses the first insertion space S1 is the first insertion portion 401, and the portion that encloses the second insertion space S2 is the second insertion portion 402. After the monitoring movable spring 5 and the monitoring static spring 6 are inserted into the two insertion spaces, the monitoring movable spring 5 and the monitoring static spring 6 can be separated to avoid contact between the two.

[0065] like Fig.10 As shown, the top ends of the first insertion part 401 and the second insertion part 402 are flush, and the second insertion part 402 protrudes closer to the base 1 than the first insertion part 401 in the vertical direction Z, so that the insertion structure 4 is stepped, and the size of the second insertion space S2 in the vertical direction Z is larger than the size of the first insertion space S1 in the vertical direction Z, thereby increasing the contact area between the monitoring static spring 6 and the inner wall of the second insertion space S2, preventing the monitoring static spring 6 from withdrawing from the second insertion space S2, and improving its stability.

[0066] like Fig.11 As shown, the first lateral protrusion 4021 and the second lateral protrusion 4022 of the embodiment of the utility model are respectively located on both sides of the second insertion portion 402 in the second horizontal direction Y.

[0067] In some embodiments, Fig.11 As shown, the third lateral protrusion 4023 is located on a side of the second insertion portion 402 away from the first insertion portion 401, and in the second horizontal direction Y, the size of the third lateral protrusion 4023 is smaller than the size of the second insertion portion 402. That is, in the second horizontal direction Y, the third lateral protrusion 4023 is narrower than the second insertion portion 402, so that it is easy to insert the third lateral protrusion 4023 into the third insertion slot 13. The third lateral protrusion 4023 can be a protrusion protruding from the second insertion portion 402.

[0068] In the disclosed embodiment, the first lateral protrusion 4021, the second lateral protrusion 4022 and / or the third lateral protrusion 4023 are located on the second insertion portion 402, making its size in the vertical direction Z larger and improving the stability of insertion into the corresponding insertion slot.

[0069] In some embodiments, the thickness of the bottom of at least one of the first lateral protrusion 4021, the second lateral protrusion 4022, and the third lateral protrusion 4023 gradually decreases toward the bottom end of each protrusion. Figure 6 As shown, the bottom of the first lateral protrusion 4021 (as shown in Figure 6 The thickness of the first lateral protrusion 4021 (the portion circled by the dotted line) gradually decreases toward the bottom thereof, where the 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 may be designed to be rounded. Thus, the bottom of the first lateral protrusion 4021 is more easily inserted into the first insertion slot 11. The structures of the second lateral protrusion 4022 and the third lateral protrusion 4023 may be the same as that of the first lateral protrusion 4021, and will not be described in detail herein.

[0070] In some embodiments, Figure 6 As shown, in the first horizontal direction X, the sizes of the first lateral protrusion 4021 and the second lateral protrusion 4022 can be respectively smaller than the size of the second insertion portion 402. That is, in the first horizontal direction X, the first lateral protrusion 4021 and the second lateral protrusion 4022 are respectively narrower than the second insertion portion 402, so that it can be more easily inserted into the first insertion slot 11 and the second insertion slot 12, and material can be saved.

[0071] like Fig.10 As shown, in some embodiments, the top ends of the first lateral protrusion 4021, the second lateral protrusion 4022, and the third lateral protrusion 4023 may be lower than or flush with the bottom surface of the fixing frame 3 facing the magnetic circuit assembly 2. That is, the lateral protrusion is located on the side of the fixing frame 3 facing the magnetic circuit assembly 2, and the size of the lateral protrusion in the vertical direction Z may be equal to or smaller than the size of the second insertion portion 402.

[0072] like Fig.10 As shown, in some embodiments, the bottom end of the second insertion portion 402 protrudes from or is flush with the bottom ends of the first lateral protrusion 4021, the second lateral protrusion 4022, and the third lateral protrusion 4023. In this way, insertion is facilitated and the space occupied by the insertion structure 4 is minimized.

[0073] like Fig.12As shown, in the embodiment of the utility model, the insertion structure 4 also includes a first partition 41, which is arranged 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 located at both ends of the diagonal of the insertion structure 4 with the inner walls of the first insertion space S1 and the second insertion space S1. The first insertion port 43 is connected to the first insertion space S1, and the second insertion port 44 is connected to the second insertion space S2. One end of the monitoring dynamic spring 5 extends out through the first insertion port 43, and one end of the monitoring static spring 6 extends out through the second insertion port 44, so that the two ends of the monitoring dynamic spring 5 and the monitoring static spring 6 are as far away as possible to avoid contact between the two ends, thereby improving the accuracy of monitoring.

[0074] like Fig.12 As shown, at least one first glue dispensing port 45 and at least one second glue dispensing port 46 are also provided on the second partition 42. The first glue dispensing port 45 is connected to the first insertion space S1, and the second glue dispensing port 46 is connected to the second insertion space S2. After the monitoring movable spring 5 and the monitoring static spring 6 are inserted, glue can be dispensed through the first glue dispensing port 45 and the second glue dispensing port 46 to bond and fix the monitoring movable spring 5 and the monitoring static spring 6 respectively. The number of the first glue dispensing port 45 and the second glue dispensing port 46 can be one or more, for example, two, three, four or more. Those skilled in the art can set them according to the size of the second partition 42, and no special limitation is made here. In addition, in addition to the first insertion port 43 and the second insertion port 44, the other two openings can also be used as glue dispensing ports.

[0075] like Fig.12 As shown, the plug-in structure 4 can be integrally formed with the fixing frame 3. For example, if the fixing frame 3 is a plastic part, the plug-in structure 4 and the fixing frame 3 can be integrally formed by an injection molding process. This can simplify assembly, reduce occupied space, make the positioning of the plug-in structure 4 more accurate, and enhance the firmness of the plug-in structure 4. In addition, the structure of the entire fixing frame 3 is simple and can prevent deformation, and when the magnetic circuit assembly 2 swings, it can more accurately push the monitoring spring 5 to move.

[0076] In the embodiment of the utility model, the plug-in structure 4 is arranged on the fixing frame 3, and the monitoring dynamic spring 5 and the monitoring static spring 6 are inserted into the plug-in structure 4, so that the assembly is simple and the occupied space is reduced. The base 1 is provided with an insertion slot, and the insertion structure 4 can be inserted into the insertion slot. The insertion slot plays a role of limiting and positioning the insertion structure 4, so that the insertion structure 4 can be installed in the base 1 more accurately and stably, avoiding the stress generated by the relay during the assembly process (such as the stress generated by welding) that makes the monitoring dynamic spring 5 and the monitoring static spring 6 unable to close or the contact point contact is unstable after closing, and further improving the reliability of the contact between the monitoring dynamic spring 5 and the monitoring static spring 6.

[0077] It is understandable that the various embodiments / implementations provided by the present utility model can be combined with each other without causing any contradiction, and will not be illustrated one by one here.

[0078] In the embodiments of the present utility model, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to the specific circumstances.

[0079] In the description of the embodiments of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the embodiments of the present invention.

[0080] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0081] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A magnetic latching relay, characterized in that: include: A base having an insertion slot; A fixing frame, arranged on the base, the fixing frame is provided with an inserting structure, and the inserting structure is configured to be inserted into the inserting slot; The monitoring dynamic spring and the monitoring static spring are inserted into the insertion structure along the vertical direction, and the ends thereof extend out of the insertion structure respectively.

2. The magnetic latching relay according to claim 1, characterized in that: At least one side of the insertion structure is provided with a lateral protrusion, and the lateral protrusion is inserted into the insertion slot.

3. The magnetic latching relay according to claim 2, characterized in that: The lateral protrusions include a first lateral protrusion, and the first lateral protrusion is located at one side of the insertion structure in the second horizontal direction; The insertion slot includes a first insertion slot, the first insertion slot corresponds to the first lateral protrusion in the vertical direction, so that the first lateral protrusion is inserted into the first insertion slot; Wherein, the second horizontal direction is perpendicular to the vertical direction.

4. The magnetic latching relay according to claim 3, characterized in that: The lateral protrusion also includes a second lateral protrusion, and the second lateral protrusion is located on a side of the insertion structure opposite to the first lateral protrusion in the second horizontal direction; The insertion slot also includes a second insertion slot, and the second insertion slot corresponds to the second lateral protrusion in the vertical direction, so that the second lateral protrusion is inserted into the second insertion slot.

5. The magnetic latching relay according to claim 4, characterized in that: Also includes: A magnetic circuit assembly is disposed on the base and is capable of swinging in a first horizontal direction to drive the monitoring movable spring to move, so that the monitoring movable spring and the monitoring static spring are closed or separated, and the fixing frame covers at least a portion of the magnetic circuit assembly; Wherein, the first horizontal direction is perpendicular to the vertical direction.

6. The magnetic latching relay according to claim 5, characterized in that: The lateral protrusions include a third lateral protrusion, and the third lateral protrusion is located on a side of the insertion structure opposite to the magnetic circuit component in the first horizontal direction; The insertion slot includes a third insertion slot, and the third insertion slot corresponds to the third lateral protrusion in the vertical direction, so that the third lateral protrusion is inserted into the third insertion slot.

7. The magnetic latching relay according to claim 6, characterized in that: The insertion structure comprises a first insertion part and a second insertion part adjacent to each other in the first horizontal direction, the first insertion part has a first insertion space penetrating in the vertical direction, the second insertion part has a second insertion space penetrating 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; Wherein, the first lateral protrusion and the second lateral protrusion are respectively located at two sides of the second insertion portion in the second horizontal direction.

8. The magnetic latching relay according to claim 7, characterized in that: The third lateral protrusion is located at a side of the second inserting portion away from the first inserting portion, and in the second horizontal direction, a size of the third lateral protrusion is smaller than a size of the second inserting portion.

9. The magnetic latching relay according to claim 8, characterized in that: The thickness of the bottom of at least one of the first lateral protrusion, the second lateral protrusion and the third lateral protrusion gradually decreases toward the direction approaching the respective bottom ends; and / or, In the first horizontal direction, sizes of the first lateral protrusion and the second lateral protrusion are respectively smaller than a size of the second insertion portion.

10. The magnetic latching relay according to claim 8, characterized in that: The top ends of the first lateral protrusion, the second lateral protrusion and the third lateral protrusion are lower than or flush with the bottom surface of the fixing frame facing the magnetic circuit assembly; and / or, The bottom end of the second inserting portion protrudes from or is flush with the bottom ends of the first lateral protrusion, the second lateral protrusion, and the third lateral protrusion.

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