Magnetic latching relay

Abstract

The utility model relates to the technical field of electronic control devices, and relates to a magnetic latching relay. The magnetic latching relay comprises a clamping plate type magnetic circuit structure, the clamping plate type magnetic circuit structure comprises a yoke assembly, magnetic steel, an armature and a clamping plate assembly, and the armature and the yoke assembly are oppositely arranged to form a first direction; the magnetic steel is arranged between the armature and the yoke assembly in the first direction and is fixed relative to the yoke assembly, and the yoke assembly is in contact with a magnetic pole on one side of the magnetic steel in the first direction; the magnetic steel and the armature are arranged in a split mode, and the armature makes contact with a magnetic pole on the other side of the magnetic steel in the first direction. The clamping plate assembly comprises two clamping plates, the two clamping plates clamp the armature and the magnetic steel in the second direction, and the two clamping plates limit the armature and the magnetic steel in the third direction; the second direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction and the first direction. According to the magnetic latching relay, the preparation difficulty can be reduced, the preparation period is shortened, the cost is reduced, the integration level of structural members can be improved, and the assembly difficulty is reduced.

Description

Technical Field

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

[0002] A relay is an electronic control device that has a control system (also called an input circuit) and a controlled system (also called an output circuit). It is usually used in automatic control circuits. It is actually an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays the role of automatic regulation, safety protection, and circuit conversion in the circuit.

[0003] The existing relay uses an injection molding process to mold the magnet steel and the armature into one piece to form an integrated injection molded magnetic circuit. The processing cycle of the integrated injection molded magnetic circuit is long and the cost is high. Utility Model Content

[0004] The embodiment of the present application provides a magnetic latching relay, which can reduce the difficulty of preparation, shorten the preparation cycle, reduce costs, and can improve the integration of structural parts and reduce the difficulty of assembly.

[0005] The present application provides a magnetic latching relay, including: a clamping plate type magnetic circuit structure, the clamping plate type magnetic circuit structure includes a yoke assembly, a magnetic steel, an armature and a clamping plate assembly, wherein:

[0006] The armature and the yoke assembly are arranged opposite to each other to form a first direction; the magnetic steel is placed between the armature and the yoke assembly along the first direction and fixed relative to the yoke assembly, and the yoke assembly contacts one side of the magnetic pole of the magnetic steel in the first direction; the magnetic steel and the armature are arranged separately, and the armature contacts the other side of the magnetic pole of the magnetic steel in the first direction;

[0007] The clamping plate assembly includes two clamping plates, which clamp the armature and the magnet in a second direction and limit the armature and the magnet in a third direction; the second direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction and the first direction.

[0008] According to some embodiments of the utility model, a first positioning structure is provided between the clamping plate and the magnetic steel, and the first positioning structure is used to limit the relative position of the magnetic steel in the third direction.

[0009] According to some embodiments of the utility model, the first positioning structure includes a first protrusion provided on one side of the clamping plate facing the other clamping plate, and the first protrusion abuts against two sides of the magnetic steel in the third direction.

[0010] According to some embodiments of the utility model, a second positioning structure is provided between the clamping plate and the armature, and the second positioning structure is used to limit the relative position of the armature in the third direction.

[0011] According to some embodiments of the utility model, the second positioning structure includes a groove provided on the side of the clamping plate facing the other clamping plate and a second protrusion provided on the surface of the armature, the second protrusion is placed in the groove matching therewith, and the armature can rotate relative to the inner wall of the groove through the second protrusion.

[0012] According to some embodiments of the utility model, the groove runs through two opposite sides of the clamping plate in the second direction, and the second protrusion does not extend beyond a surface of one side of the clamping plate facing away from the other clamping plate.

[0013] According to some embodiments of the utility model, a third positioning structure is provided between the clamping plate and the yoke assembly, and the yoke assembly is fixed to the clamping plate assembly via the third positioning structure.

[0014] According to some embodiments of the utility model, the third positioning structure includes a convex portion and a concave portion that are adapted to each other, one of the convex portion and the concave portion is arranged on the clamping plate, and the other is arranged on the yoke assembly.

[0015] According to some embodiments of the utility model, an arc-shaped contact surface is provided between the armature and the magnet, the armature contacts one side magnetic pole of the magnet through the arc-shaped contact surface, and the armature is rotatably arranged relative to the magnet through the arc-shaped contact surface so that the two ends of the armature are alternately contacted and cooperated with the yoke assembly.

[0016] According to some embodiments of the utility model, the yoke assembly includes a first contact portion and a second contact portion arranged opposite to each other in the third direction, the first contact portion is used to contact and cooperate with one end of the armature to form a first snapping surface, and the second contact portion is used to contact and cooperate with the other end of the armature to form a second snapping surface; the second snapping surface is arranged coplanar with the first snapping surface; and the magnetic steel is fixed to the first contact portion.

[0017] According to some embodiments of the utility model, the yoke assembly includes a first contact portion, a second contact portion and a third contact portion, and along the third direction, the first contact portion and the second contact portion are arranged opposite to each other, and the third contact portion is placed between the first contact portion and the second contact portion; the first contact portion is used to contact and cooperate with one end of the armature to form a first snapping surface, and the second contact portion is used to contact and cooperate with the other end of the armature to form a second snapping surface, and the second snapping surface is arranged coplanar with the first snapping surface; the magnetic steel is fixed to the third contact portion.

[0018] According to some embodiments of the utility model, the yoke assembly includes a first contact portion; the clamping plate magnetic circuit structure also includes a coil frame, a coil wound on the surface of the coil frame, and an iron core inserted into the coil, and the first contact portion is fixed to an end of the iron core that exposes the coil;

[0019] An arc-shaped contact surface is provided between the armature and the magnet, and the armature contacts one side magnetic pole of the magnet through the arc-shaped contact surface. The armature is rotatably arranged relative to the magnet through the arc-shaped contact surface so that the two ends of the armature are alternately contacted and matched with the first contact portion and the other end of the iron core.

[0020] According to some embodiments of the utility model, the yoke assembly includes a first contact portion and an iron core; the clamping plate magnetic circuit structure also includes a coil frame and a coil wound on the surface of the coil frame, the iron core is inserted into the coil, and the first contact portion is fixed to one end of the iron core that is exposed from the coil;

[0021] An arc-shaped contact surface is provided between the armature and the magnet, and the armature contacts one side magnetic pole of the magnet through the arc-shaped contact surface. The armature is rotatably arranged relative to the magnet through the arc-shaped contact surface so that the two ends of the armature are alternately contacted and matched with the first contact portion and the other end of the iron core.

[0022] According to some embodiments of the utility model, a base is further included, and the clamping plate type magnetic circuit structure is fixed to the base through the clamping plate assembly.

[0023] According to some embodiments of the utility model, the base includes a seat body and an enclosure plate extending from the seat body, the enclosure plate forms an enclosure space, and at least a portion of the magnetic circuit system is located in the enclosure space.

[0024] According to some embodiments of the utility model, the baffle plate is provided with guide grooves extending along the third direction on both opposite sides in the second direction;

[0025] The clamping plate is provided with a guide protrusion on the side facing away from the other clamping plate, and the guide protrusion is placed in the guide sliding groove.

[0026] According to some embodiments of the utility model, the clamping plate is provided with a snap-fitting protrusion, which protrudes from the surface of the guide protrusion in the first direction and snaps into the inner wall surface of the guide slot.

[0027] According to some embodiments of the utility model, the clamping plate is symmetrically arranged with respect to the guide protrusion in the first direction.

[0028] According to some embodiments of the utility model, an anti-slip structure is provided between the splint and the base.

[0029] According to some embodiments of the utility model, the anti-slip structure includes a fixing groove provided on the base and a protrusion provided on the clamping plate, and the protrusion is interference fit with the fixing groove.

[0030] According to some embodiments of the utility model, the anti-slip structure includes a fixing groove provided on the base and a protrusion provided on the clamping plate, the fixing groove is a through groove, the protrusion extends from the fixing groove toward one side surface of the magnetic steel to the other side, and the part of the protrusion extending out of the fixing groove is provided with a barb, and the barb is engaged with the surface of the fixing groove facing away from the magnetic steel.

[0031] One embodiment of the above utility model has at least the following advantages or beneficial effects:

[0032] 1. In the magnetic latching relay provided by the present application, the armature and the magnetic steel are of a split structure, and no integral insert injection molding is required during the preparation process, making the parts simple and easy to prepare, and can improve the production efficiency and production quality of the parts and reduce the preparation cost. Moreover, when assembling the armature and the magnetic steel, a single machine can be used for automatic assembly, which reduces the difficulty of assembly and improves the efficiency of part assembly.

[0033] Moreover, in the present application, the armature and the magnet are formed into a whole through the clamping plate assembly to realize the integrated insertion of the clamping plate type magnetic circuit structure, thereby achieving the effects of extremely simple assembly process, simple parts molding, and low cost.

[0034] 2. In the relay provided in the present application, a first positioning structure is provided between the clamp and the magnet. The first positioning structure is used to limit the relative position of the magnet in the third direction to ensure that the magnet is assembled to a preset position and to prevent the magnet from moving along the third direction during use, thereby improving the structural performance of the relay.

[0035] 3. In the magnetic latching relay provided by the present application, a second positioning structure is provided between the clamping plate and the armature, and the second positioning structure is used to limit the relative position of the armature in the third direction. This structural setting enables the armature to be effectively positioned by the clamping plate assembly, and the assembly sequence of the armature can be earlier than the magnetization step of the magnetic steel, so that the position of the magnetic steel can be adjusted according to needs before magnetization, thereby reducing the difficulty of assembly and improving the assembly efficiency.

[0036] 4. In the magnetic latching relay provided in the present application, a third positioning structure is provided between the clamping plate and the yoke assembly, and the yoke assembly is fixed to the clamping plate assembly through the third positioning structure. Accordingly, in the present application, the yoke assembly, the magnetic steel and the armature are formed into a whole through the clamping plate assembly, which can further improve the integration of various structural parts in the clamping plate magnetic circuit structure, thereby reducing the difficulty of assembling the clamping plate magnetic circuit structure and the base and improving the assembly efficiency.

[0037] 5. In the magnetic holding relay provided in the present application, the clamping plate type magnetic circuit structure realizes the fixing operation between the clamping plate and the base by setting the interference fit between the protrusion and the fixing groove, which can ensure the stability of the clamping plate assembly after assembly relative to the base and prevent the clamping plate type magnetic circuit structure from detaching from the base.

[0038] Moreover, since the clamping plate type magnetic circuit structure realizes the fixing operation of the clamping plate and the base through the clamping plate and the fixing groove, there is no interference fit between the clamping plate and the base baffle plate, which can reduce the possibility of scratches between the two. At the same time, during the assembly process of the clamping plate assembly and the base, the plastic clamping plate assembly contacts the plastic base, reducing the probability of scraping and the amount of scraping between the two, thereby reducing the amount of foreign matter generated during the assembly process and improving product quality.

[0039] 6. In the magnetic holding relay provided in the present application, the portion of the protrusion extending out of the fixing groove is provided with a barb, and the barb is engaged with the surface of the fixing groove facing away from the magnetic steel to further enhance the engagement strength between the clamping plate and the base and prevent the protrusion from falling out of the fixing groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 What is shown is a three-dimensional structural schematic diagram of a magnetic latching relay provided by an embodiment of the utility model;

[0041] Figure 2 It is shown that Figure 1 Schematic diagram of the magnetic latching relay;

[0042] Figure 3 It is shown that Figure 1 Schematic diagram of the three-dimensional structure of the middle base;

[0043] Figure 4 It is shown that Figure 1 Schematic diagram of the three-dimensional structure of the middle part;

[0044] Figure 5 It is shown that Figure 4 A schematic diagram of the three-dimensional structure of the middle splint assembly;

[0045] Figure 6 It is shown that Figure 5 The schematic diagram of the structure after the middle splint assembly is assembled;

[0046] Figure 7 It is shown that Figure 6 A schematic diagram of the middle structure;

[0047] Figure 8 It is shown that Figure 2 Sectional view at AA in the middle;

[0048] Fig. 9 It is shown that Figure 6 The enlarged schematic diagram of point B in the middle;

[0049] Fig.10 Shown is a schematic structural diagram of a second clamping plate type magnetic circuit structure;

[0050] Fig.11 It is shown that Fig.10 A schematic diagram of the middle structure;

[0051] Fig.12 It is shown that Fig.11 A three-dimensional schematic diagram of the structure in the middle;

[0052] Fig.13 Shown is a schematic diagram of the structure of the third clamping plate type magnetic circuit structure;

[0053] Fig.14 It is shown that Fig.13 A schematic diagram of the middle structure;

[0054] Fig.15 It is shown that Fig.14 Schematic diagram of the structure.

[0055] The following are the descriptions of the reference numerals:

[0056] 100, clamping plate type magnetic circuit structure; 110, coil frame; 120, coil; 130, yoke assembly; 131, first contact portion; 132, second contact portion; 133, third contact portion; 134, iron core; 135, convex portion; 140, magnetic steel; 150, armature; 151, protrusion; 160, clamping plate assembly; 161, clamping plate; 1611, first protrusion; 1612, push portion; 1613, groove; 1614, recess; 1615, protrusion; 1616, barb; 1617, guide protrusion; 1618, engaging protrusion; 200, base; 210, seat body; 220, baffle plate; 221, guide slide groove. DETAILED DESCRIPTION

[0057] 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 this application 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.

[0058] The present application embodiment provides a magnetic latching relay. Figure 1 and Figure 2 As shown, the magnetic latching relay includes a clamping plate type magnetic circuit structure 100. Please refer to Figures 4 to 9As shown in the structure, the embodiment of the present application provides a clamping plate magnetic circuit structure 100. The clamping plate magnetic circuit structure 100 includes: a magnetic steel 140, an armature 150 and a clamping plate assembly 160. In the clamping plate magnetic circuit structure 100, the armature 150 and the yoke assembly 130 are arranged relative to each other to form a first direction X; the magnetic steel 140 is placed between the armature 150 and the yoke assembly 130 along the first direction X, and is fixed relative to the yoke assembly 130, and the yoke assembly 130 contacts the magnetic pole on one side of the magnetic steel 140 in the first direction X; the magnetic steel 140 and the armature 150 are arranged separately, and the armature 150 contacts the magnetic pole on the other side of the magnetic steel 140 in the first direction X.

[0059] It should be noted that in the clamping plate type magnetic circuit structure 100 provided in the embodiment of the present application, the armature 150 and the magnetic steel 140 are split structures, and no integral insert injection molding is required during the preparation process, which makes the parts simple and easy to prepare, and can improve the production efficiency and production quality of the parts and reduce the preparation cost. Moreover, when assembling the armature 150 and the magnetic steel 140, a single machine can be used for automatic assembly, which reduces the difficulty of assembly and improves the efficiency of assembly of parts.

[0060] Please combine Figure 5 refer to Figure 4 In the structure shown, the clamping plate assembly 160 includes two clamping plates 161, which clamp the armature 150 and the magnetic steel 140 in the second direction Y, and the two clamping plates 161 limit the armature 150 and the magnetic steel 140 in the third direction Z; the second direction Y is perpendicular to the first direction X, and the third direction Z is perpendicular to the second direction Y and the first direction X. At the same time, the clamping plate type magnetic circuit structure 100 is fixed to the base 200 through the clamping plate assembly 160.

[0061] It should be noted that in the embodiment of the present application, the armature 150 and the magnet 140 form a whole through the clamping plate assembly 160 to achieve the integrated insertion of the clamping plate type magnetic circuit structure 100, thereby achieving the effects of extremely simple assembly process, simple parts molding, and low cost.

[0062] It is understandable that the magnet 140 and the armature 150 may be in direct contact or may be provided with a magnetic conductive member and indirectly contacted through the magnetic conductive member. Similarly, the magnet 140 and the yoke assembly 130 may be in direct contact or may be provided with a magnetic conductive member and indirectly contacted through the magnetic conductive member.

[0063] It is worth noting that other fixing structures may be provided between the magnetic steel 140 and the yoke assembly 130, or the yoke assembly 130 may be attracted only by the magnetic steel 140. For example, during the assembly process, the magnetic steel 140 needs to be magnetized first to ensure that the relative position of the magnetic steel 140 and the yoke assembly 130 meets the requirements, and then the assembly operation of other structural parts is completed.

[0064] In one embodiment, a first positioning structure is provided between the clamp 161 and the magnet 140. The first positioning structure is used to limit the relative position of the magnet 140 in the third direction Z to ensure that the magnet 140 is assembled to a preset position and to prevent the magnet 140 from moving along the third direction Z during use, thereby improving the structural performance of the relay.

[0065] In a specific embodiment, the first positioning structure may be provided only on the surface of the clamping plate 161. Figure 5 refer to Figure 4 The structure shown, as an example, the first positioning structure includes a first protrusion 1611 arranged on the side of the clamp 161 facing the other clamp 161, and the first protrusion 1611 abuts against both sides of the magnetic steel 140 in the third direction Z to limit the relative position of the magnetic steel 140 in the third direction Z.

[0066] Specifically, in this embodiment, two first protrusions 1611 are provided on the surface of each clamping plate 161 , and the two first protrusions 1611 are arranged opposite to each other in the third direction Z to limit the relative arrangement of the magnetic steel 140 in the third direction Z.

[0067] like Figure 4 and Figure 5 As shown, in this example, the first protrusions 1611 at corresponding positions on the two clamping plates 161 cooperate with each other to enhance the limiting effect on the magnetic steel 140. If the third direction Z in the embodiment of the present application is taken as the vertical direction, and the side of each structural member close to the base 200 is defined as the bottom. Then the first protrusion 1611 on one clamping plate 161 and the first protrusion 1611 on the other clamping plate 161 jointly limit the bottom of the magnetic steel 140, and at the same time, the first protrusion 1611 on one clamping plate 161 and the first protrusion 1611 on the other clamping plate 161 jointly limit the top of the magnetic steel 140.

[0068] It should be noted that, during the process of assembling the clamping plate assembly 160 and the magnetic steel 140 , the two clamping plates 161 can be directly placed on both sides of the magnetic steel 140 for assembly operation, which can reduce the difficulty of assembly and improve the assembly efficiency.

[0069] Of course, the first protrusion 1611 may also be provided only on the clamping plate 161 located on one side of the magnetic steel 140 , and details thereof will not be repeated herein.

[0070] Alternatively, in another specific embodiment, the first positioning structure may be partially disposed on the surface of the magnetic steel 140 and partially disposed on the surface of the clamping plate 161. Specifically, the first positioning structure includes a concave portion and a convex portion that cooperate with each other, and one of the convex portion and the concave portion is disposed on the magnetic steel, and the other is disposed on the clamping plate 161.

[0071] Exemplarily, the magnetic steel 140 is provided with a convex portion, which is inserted into the concave portion of the clamping plate 161 to limit the relative position of the magnetic steel 140 in the third direction Z. Alternatively, the clamping plate 161 is provided with a convex portion, which is inserted into the concave portion of the magnetic steel 140 to limit the relative position of the magnetic steel 140 in the third direction Z.

[0072] In order to facilitate the assembly of the magnetic steel 140 in the limiting space formed by the first protrusion 1611, it is also possible to Figure 5 As shown, a guide slope M is provided on the first protrusion 1611 to facilitate the insertion of the magnet 140 and prevent the sharp corners of the first protrusion 1611 from scratching the magnet 140 and affecting the performance of the magnet 140.

[0073] Please continue to refer to Figure 5 In order to enhance the clamping effect of the clamping plate assembly 160 on the magnetic steel 140 in the second direction Y, in the structure shown in one embodiment, the clamping plate 161 is provided with a push portion 1612 on the side facing the other clamping plate 161 to push the side of the magnetic steel 140 in the second direction Y.

[0074] It is worth noting that Figure 5 The push portion 1612 is disposed between and connected to two first protrusions 1611 of the same clamping plate 161 to enhance the structural strength of the clamping plate 161 .

[0075] Please continue to refer to Figure 4 and Figure 5 In the structure shown, since the two clamping plates 161 are located on both sides of the armature 150 in the second direction Y, the clamping plate assembly 160 can limit the maximum displacement of the armature 150 in the second direction Y. When the armature 150 and the magnetic steel 140 are separately arranged, the armature 150 is attracted by the magnetic steel 140 and will not fall off, and the magnetic steel 140 does not need to be pressed against the armature 150 in the first direction X. However, during the assembly process, the assembly operation of the armature 150 may be earlier than the magnetization operation of the magnetic steel 140. Therefore, in one embodiment, a second positioning structure is provided between the clamping plate 161 and the armature 150, and the second positioning structure is used to limit the relative position of the armature 150 in the third direction Z.

[0076] It should be noted that this structural setting allows the armature 150 to be effectively positioned by the clamping plate assembly 160, and the assembly sequence of the armature 150 can be earlier than the magnetization step of the magnet 140, so that the position of the magnet 140 can be adjusted as needed before magnetization, thereby reducing the difficulty of assembly and improving assembly efficiency.

[0077] It is worth noting that there are many possibilities for the structural setting of the second positioning structure in the embodiment of the present application.

[0078] In a specific embodiment, Figure 4 and Figure 5As shown, the second positioning structure includes a groove 1613 provided on the side of the clamping plate 161 facing the other clamping plate 161 and a second protrusion 151 provided on the surface of the armature 150. The second protrusion 151 is placed in the groove 1613 that matches it, and the armature 150 can rotate relative to the inner wall of the groove 1613 through the second protrusion 151.

[0079] It should be noted that, in this specific embodiment, the protrusion 151 on the surface of the armature 150 is placed in a groove 1613 on the clamping plate 161 that cooperates with it. The groove 1613 can limit the protrusion 151 in the first direction X and the third direction Z, thereby limiting the relative position of the armature 150 in the first direction X and the third direction Z.

[0080] It is worth noting that Figure 6 As shown, along the first direction X and the third direction Z, there is a gap between the protrusion 151 and the inner wall of the groove 1613 to ensure the rotation effect of the protrusion 151 and avoid jamming.

[0081] In order to further optimize the rotation effect of the protrusion 151 relative to the groove 1613 to avoid jamming. Figure 6 refer to Fig. 9 In the structure shown, the clamping plate 161 is used to form the inner wall of the groove 1613, including a first extension segment P1, a second extension segment P2, a third extension segment P3 and a fourth extension segment P4 connected in sequence, wherein the first extension segment P1 and the third extension segment P3 are arranged relatively to each other in the third direction Z, the second extension segment P2 and the fourth extension segment P4 are arranged relatively to each other in the first direction X, and the second extension segment P2, the third extension segment P3 and the fourth extension segment P4 are straight line segments, the fourth extension segment P4 is located on the side of the second extension segment P2 away from the magnetic steel 140, and the fourth extension segment P4 is a curved segment convex in the direction away from the magnetic steel 140. The protrusion 151 of the armature 150 includes a first surface Q1, a second surface Q2, a third surface Q3 and a fourth surface Q4. The first surface Q1 and the third surface Q3 are arranged opposite to each other in the third direction Z, the second surface Q2 and the fourth surface Q4 are arranged opposite to each other in the first direction X, the fourth surface Q4 is located on the side of the armature 150 away from the magnet 140, and there is a slope Q5 between the first surface Q1 and the fourth surface Q4, and there is a slope Q6 between the third surface Q3 and the fourth surface Q4.

[0082] It is worth noting that during the rotation of the armature 150 , the inclined surface Q5 and the inclined surface Q6 are used to prevent rotation jamming.

[0083] Of course, a groove structure may be provided on the armature 150 and a protrusion structure may be provided on the clamping plate 161 according to the requirements, and the details will not be described in detail.

[0084] In one embodiment, the groove 1613 passes through the two opposite sides of the clamping plate 161 in the second direction Y, that is, the groove 1613 is a through groove. At this time, the protrusion 151 does not exceed the surface of the side of the clamping plate 161 away from the other clamping plate 161, so as to reduce the difficulty of assembly, avoid the protrusion 151 from exceeding the clamping plate 161 and scratching the base 200, and reduce the risk of scraping, so as to reduce the difficulty of assembly.

[0085] Of course, the groove 1613 may also be arranged to have an opening only on the side of the clamping plate 161 facing the armature 150 , which will not be described in detail.

[0086] In one embodiment, please refer to Figures 4 to 8 In the structure shown, a third positioning structure is provided between the clamping plate 161 and the yoke assembly 130 , and the yoke assembly 130 is fixed to the clamping plate assembly 160 via the third positioning structure.

[0087] It should be noted that in the embodiment of the present application, the yoke assembly 130, the magnet 140 and the armature 150 form a whole through the clamping plate assembly 160, which can further improve the integration of various structural components in the clamping plate magnetic circuit structure 100, thereby reducing the difficulty of assembling the clamping plate magnetic circuit structure 100 and the base 200 and improving the assembly efficiency.

[0088] It is worth noting that, since the yoke assembly 130 in this embodiment is also fixed by the clamping plate assembly 160, when assembling the magnetic latching relay provided in the embodiment of the present application, all components can be assembled, and then the magnetic steel 140 can be pressed to magnetize. After magnetization, the magnetic steel 140 is adsorbed on the surface of the yoke assembly 130, and at the same time, the armature 150 is attracted by the magnetic steel 140 and will not fall off. Accordingly, when the armature 150 and the magnetic steel 140 are separately arranged, the magnetic steel 140 does not need to be pressed and limited by the armature 150 in the first direction X.

[0089] In one embodiment, the third positioning structure includes a convex portion 135 and a concave portion 1614 that fit each other, one of the convex portion 135 and the concave portion 1614 is disposed on the clamping plate 161, and the other is disposed on the yoke assembly 130. For example, Figures 4 to 8 As shown, a concave portion 1614 is provided on the surface of the clamping plate 161 , and a convex portion 135 is provided on the surface of the yoke assembly 130 , and the convex portion is placed in the corresponding concave portion 1614 .

[0090] It is worth noting that the surface of the clamping plate 161 may be provided with one or more recesses 1614, and correspondingly, the surface of the yoke assembly 130 may be provided with one or more corresponding protrusions 135, so as to improve the relative stability of the yoke assembly 130 and the clamping plate assembly 160 after assembly. In addition, the number of recesses 1614 on the surface of the clamping plate 161 may be greater than the number of protrusions 135 on the surface of the yoke assembly 130, so as to broaden the application scenarios, which will not be described in detail.

[0091] Please continue to refer to Figures 4 to 8 In the structure shown, in a specific embodiment, the recess 1614 can penetrate the clamping plate 161 in the second direction Y, so that the protrusion 135 is effectively placed in the recess 1614, thereby improving the relative stability of the yoke assembly 130 and the clamping plate assembly 160 after assembly.

[0092] At the same time, when the concave portion 1614 penetrates the clamping plate 161 in the second direction Y, it is possible to timely observe whether the convex portion 135 is assembled in place, thereby reducing the difficulty of assembly and improving the assembly efficiency.

[0093] It is worth noting that there are many possible assembly forms of the yoke assembly 130, the armature 150 and the magnetic steel 140 in the embodiment of the present application, at least one of the following forms.

[0094] In one embodiment, please continue to refer to Figure 4 and Figure 7 In the structure shown, an arc-shaped contact surface is provided between the armature 150 and the magnet 140, and the armature 150 contacts one side pole of the magnet 140 through the arc-shaped contact surface, and the armature 150 is rotatably arranged relative to the magnet 140 through the arc-shaped contact surface, so that the two ends of the armature 150 are in alternate contact and cooperation with the yoke assembly 130.

[0095] It should be noted that the embodiment of the present application only includes one armature 150, and the armature 150 is generally a flat-plate structure, which is not only lightweight but also saves parts and reduces costs.

[0096] Of course, multiple armatures 150 can be provided as required, and the multiple armatures 150 can be arranged horizontally along the second direction Y while maintaining consistency of action, which will not be described in detail.

[0097] It is worth noting that when the arc-shaped contact surface between the armature 150 and the magnetic steel 140 is provided, there are various possible forms of the arc-shaped contact surface. For example, the armature 150 is provided with a convex burl on the side facing the magnetic steel 140, and the convex burl forms an arc-shaped contact surface, and the armature 150 contacts the magnetic steel 140 through the arc-shaped contact surface; or, the magnetic steel 140 is provided with a convex burl on the side facing the armature 150, and the convex burl forms an arc-shaped contact surface, and the armature 150 contacts the magnetic steel 140 through the arc-shaped contact surface.

[0098] When the convex brim is provided on the armature 150, the convex brim and the armature 150 may be an integrated structure to improve the rotation stability of the armature 150. Of course, the armature 150 and the convex brim may also be provided as a separate structure according to the requirements, and the details are not repeated here.

[0099] Similarly, the arrangement between the convex bulge and the magnetic steel 140 may refer to the arrangement between the convex bulge and the armature 150 , and the details will not be repeated here.

[0100] In a specific example of this embodiment, Figure 4 As shown, the yoke assembly 130 includes a first contact portion 131, a second contact portion 132 and a third contact portion 133. Along the third direction Z, the first contact portion 131 and the second contact portion 132 are arranged opposite to each other, and the third contact portion 133 is placed between the first contact portion 131 and the second contact portion 132; the first contact portion 131 is used to contact and cooperate with one end of the armature 150 to form a first snap-fit ​​surface, and the second contact portion 132 is used to contact and cooperate with the other end of the armature 150 to form a second snap-fit ​​surface, and the second snap-fit ​​surface is arranged coplanar with the first snap-fit ​​surface; the magnetic steel 140 is fixed to the third contact portion 133. It can be understood that in this specific embodiment, the first contact portion 131, the second contact portion 132 and the third contact portion 133 can be understood as three yokes.

[0101] It is worth noting that Figure 4 As shown, the first contact portion 131 and the second contact portion 132 exceed the third contact portion 133 in the first direction X, and there is a gap between the first contact portion 131 and the second contact portion 132 in the third direction Z, so that the magnetic steel 140 is fixed on the surface of the third contact portion 133.

[0102] It should be noted that the embodiment of the present application exposes a magnet 140 through a design scheme of three yokes and one armature 150, and positions and limits the magnet 140 through the two side clamps 161 and the yokes. Among them, the support surface for the rotation of the armature 150 is the surface of the magnet 140, and the entire magnetic circuit overlap is completed in cooperation with the first overlap surface and the second overlap surface. Accordingly, the use of the clamp 161 can not only better position and limit the magnet 140, but also avoid scraping from the base 200 during the assembly of the magnetic circuit.

[0103] In another specific example of this embodiment, Figures 10 to 12 As shown, the yoke assembly 130 includes a first contact portion 131 and a second contact portion 132 arranged opposite to each other in the third direction Z, the first contact portion 131 is used to contact and cooperate with one end of the armature 150 to form a first snap-fit ​​surface, and the second contact portion 132 is used to contact and cooperate with the other end of the armature 150 to form a second snap-fit ​​surface; the second snap-fit ​​surface is arranged coplanar with the first snap-fit ​​surface; and the magnetic steel 140 is fixed to the first contact portion 131. It can be understood that in this specific embodiment, the first contact portion 131 and the second contact portion 132 can be understood as two yokes.

[0104] It should be noted that the embodiment of the present application exposes a magnet 140 through a design scheme of two yokes and one armature 150, and positions and limits the magnet 140 through the two side clamps 161 and the yoke. Among them, the support surface for the rotation of the armature 150 is the surface of the magnet 140, and the first overlap surface and the second overlap surface are used to complete the overlap of the entire magnetic circuit. Accordingly, the use of the clamp 161 can not only better position and limit the magnet 140, but also avoid scraping from the base 200 during the assembly of the magnetic circuit.

[0105] As an example, the first contact portion 131 and the second contact portion 132 are located on opposite sides of the coil 120 in the third direction Z and are fixed relative to the coil 120; each of the first contact portion 131 and the second contact portion 132 extends from a fixed point with the coil 120 to one side of the armature 150; and at least a portion of the first contact portion 131 and the second contact portion 132 extends between the coil 120 and the armature 150 to be arranged opposite to the armature 150. It can be understood that the extension dimension of the first contact portion 131 in the third direction Z is greater than the extension dimension of the second contact portion 132 in the third direction Z, and the magnetic steel 140 is fixed to the first contact portion 131.

[0106] It is understandable that the first contact portion 131 and the second contact portion 132 are fixed in position relative to the coil 120 means that after the first contact portion 131 and the second contact portion 132 are assembled relative to the coil 120, there is basically no relative movement. Exemplarily, taking the first contact portion 131 as an example, the first contact portion 131 and the coil 120 can be directly fixedly connected (such as riveting) by certain structural parts to achieve position fixation; or, the first contact portion 131 and the coil 120 can be fixed in position by plugging or overlapping certain structural parts. Of course, other limiting structures can also be set between the first contact portion 131 and the coil 120 to fix the position, which will not be described in detail.

[0107] Taking the above two specific embodiments as an example, during operation, when the coil 120 is excited, the armature 150 swings under the joint action of the magnetic steel 140 and the yoke assembly 130, so that one end of the armature 150 contacts the first contact portion 131. At this time, the armature 150, the magnetic steel 140, and part of the yoke assembly 130 form a complete magnetic circuit. When the coil 120 is de-excited, the armature 150 swings in the opposite direction, so that the other end of the armature 150 contacts the other part of the second contact portion 132. At this time, another complete magnetic circuit is formed between the armature 150, the magnetic steel 140, and part of the yoke assembly 130.

[0108] In another embodiment, Figures 13 to 15As shown, the yoke assembly 130 includes a first contact portion 131 and an iron core 134, the iron core 134 is inserted into the coil 120, and the first contact portion 131 is fixed to one end of the iron core 134 that is exposed from the coil 120;

[0109] An arc-shaped contact surface is provided between the armature 150 and the magnet 140 , and the armature 150 contacts one side pole of the magnet 140 through the arc-shaped contact surface, and the armature 150 is rotatably arranged relative to the magnet 140 through the arc-shaped contact surface, so that the two ends of the armature 150 are alternately contacted and matched with the first contact portion 131 and the other end of the iron core 134 .

[0110] It should be noted that the embodiment of the present application exposes a magnet 140 through a design scheme of a yoke and an armature 150, and positions and limits the magnet 140 through the two side clamps 161 and the yoke. Among them, the support surface for the rotation of the armature 150 is not on the surface of the magnet 140, and an additional rotating support structure is provided, and the magnetic circuit is constructed by combining the overlap surface of the armature 150 with the first contact portion 131 and the surface of the core 134. Accordingly, the use of the clamp 161 can not only better position and limit the magnet 140, but also avoid scraping from the base 200 during the assembly of the magnetic circuit.

[0111] Taking this embodiment as an example, during operation, when the coil 120 is excited, the armature 150 swings under the combined action of the magnetic steel 140 and the yoke assembly 130, so that one end of the armature 150 contacts the first contact portion 131. When the coil 120 is de-excited, the armature 150 swings in the opposite direction, so that the other end of the armature 150 contacts the iron core 134.

[0112] It is worth noting that the number of yokes in the embodiment of the present application is one piece, and the armature 150 is an L-shaped armature 150 to meet the magnetic circuit requirements.

[0113] It can be understood that in the examples where the yoke assembly 130 includes two yokes and three yokes, the yoke assembly 130 may include an iron core 134, and the iron core 134 connects the contact portion formed by the yokes; or, the yoke assembly 130 may not include an iron core 134.

[0114] Taking the case where the number of yokes is one piece and the yoke assembly 130 includes an iron core 134 as an example, the iron core 134 and the first contact portion 131 in the yoke assembly 130 can be an integrated structure or a segmented structure. Exemplarily, when the iron core 134 and the first contact portion 131 are a split structure, the iron core 134 can be passed through the coil frame 110, and then the first contact portion 131 is riveted to the side end of the iron core 134. Afterwards, the armature 150, the magnetic steel 140, and the yoke assembly 130 including the various contact portions and the iron core 134 can be assembled through the clamping plate assembly 160 to form a whole.

[0115] When the iron core 134 may not belong to the yoke assembly 130, taking the yoke assembly 130 only including the first contact portion 131 as an example, illustratively, the yoke assembly 130 includes the first contact portion 131; the clamping plate magnetic circuit structure 100 also includes a coil frame 110, a coil 120 wound on the surface of the coil frame 110 and an iron core 134 inserted into the coil 120, and the first contact portion 131 is fixed to the iron core 134 at one end of the coil 120 exposed; similarly, an arc-shaped contact surface is provided between the armature 150 and the magnet 140, and the armature 150 contacts one side of the magnetic pole of the magnet 140 through the arc-shaped contact surface, and the armature 150 is rotatably arranged relative to the magnet 140 through the arc-shaped contact surface, so that the two ends of the armature 150 are alternately in contact and cooperate with the first contact portion 131 and the other end of the iron core 134.

[0116] Accordingly, when the iron core 134 does not belong to the yoke assembly 130 , the yoke assembly 130 only includes various contact parts, and the clamping plate assembly 160 can form the armature 150 , the magnet 140 and the various contact parts into a whole and then assemble them with the iron core 134 .

[0117] In one embodiment, please continue to refer to Figures 1 to 3 In the structure shown, the magnetic latching relay provided in the embodiment of the present application further includes a base 200, and the clamping plate type magnetic circuit structure 100 is fixed to the base 200 through the clamping plate assembly 160. It should be understood that the structural form of the base 200 is not limited to Figure 1 and Figure 3 As shown, it can be configured in other forms according to the requirements. For example, the base 200 can be a shell structure with an installation cavity, so that the magnetic circuit system can be installed in the shell structure.

[0118] It should be noted that, since the clamping plate magnetic circuit structure 100 is assembled with the base 200 through the clamping plate assembly 160, the clamping plate assembly 160 serves as a transition piece connecting the clamping plate magnetic circuit structure 100 and the base 200, and the armature 150 and the yoke assembly 130 and other structures no longer directly contact the base 200, which can reduce the risk of scraping. Moreover, during the assembly process of the clamping plate assembly 160 and the base 200, the plastic clamping plate assembly 160 contacts the plastic base 200, which reduces the probability of scraping and reduces the amount of scraping between the two, thereby reducing the amount of foreign matter generated during the assembly process and improving product quality.

[0119] In one embodiment, please refer to Figure 3 In the structure shown, the base 200 includes a base body 210 and a baffle plate 220 extending from the base body 210 . The baffle plate 220 forms an enclosure space, and at least a portion of the magnetic circuit system is located in the enclosure space.

[0120] It should be noted that in the embodiment of the present application, the clamping plate magnetic circuit structure 100 is formed into a whole by the clamping plate assembly 160. When the clamping plate magnetic circuit structure 100 is assembled in the enclosure space, there is no need for interference fit between the clamping plate magnetic circuit structure 100 and the enclosure plate 220, which can reduce the probability of scraping and the amount of scraping between the two, thereby reducing the amount of foreign matter generated during the assembly process and improving product quality.

[0121] In one embodiment, please combine Figure 3 refer to Figure 5 In the structure shown, the enclosing plate 220 is provided with guide grooves 221 extending along the third direction Z on both opposite sides in the second direction Y; the clamping plate 161 is provided with a guide protrusion 1617 on the side away from the other clamping plate 161, and the guide protrusion 1617 is placed in the guide groove 221 to ensure that the clamping plate type magnetic circuit structure 100 is assembled in place and reduce the difficulty of assembly.

[0122] To prevent the clamping plate type magnetic circuit structure 100 from shaking during the assembly process, in one embodiment, Figure 5 The clamping plate 161 shown is provided with a locking protrusion 1618 . The locking protrusion 1618 protrudes from the surface of the guide protrusion 1617 in the first direction X and is locked to the inner wall surface of the guide slot 221 .

[0123] In one embodiment, an anti-slip structure is provided between the clamping plate 161 and the base 200 to prevent the clamping plate type magnetic circuit structure 100 from being detached from the base 200. As an example, the anti-slip structure includes a fixing groove provided on the base 200 and a protrusion provided on the clamping plate 161, and the protrusion is interference fit with the fixing groove.

[0124] It should be noted that the clamping plate type magnetic circuit structure 100 realizes the fixing operation between the clamping plate 161 and the base 200 by setting the protrusion and the fixing groove in an interference fit manner, which can improve the stability of the clamping plate assembly 160 after assembly relative to the base 200 and prevent the clamping plate type magnetic circuit structure 100 from detaching from the base 200.

[0125] Moreover, since the clamping plate type magnetic circuit structure 100 realizes the fixing operation of the clamping plate 161 and the base 200 through the protrusion and the fixing groove, there is no interference fit between the clamping plate 161 and the baffle plate 220 of the base 200, which can reduce the possibility of scratches between the two. At the same time, during the assembly process of the clamping plate assembly 160 and the base 200, the plastic clamping plate assembly 160 contacts the plastic base 200, reducing the probability of scraping and reducing the amount of scraping between the two, thereby reducing the amount of foreign matter generated during the assembly process and improving product quality.

[0126] In another embodiment, please combine Figure 5 refer to Figure 8In the structure shown, the anti-slip structure includes a fixing groove provided on the base 200 and a protrusion 1615 provided on the clamping plate 161, wherein the fixing groove is a through groove, and the protrusion 1615 extends from the fixing groove toward one side of the magnetic steel 140 to the other side, and the portion of the protrusion 1615 extending out of the fixing groove is provided with a barb 1616, and the barb 1616 is engaged with the surface of the fixing groove facing away from the magnetic steel 140.

[0127] During assembly, the protrusion 1615 with the barb 1616 can be inserted into the fixing groove. After the barb 1616 passes through the other side surface of the fixing groove, the barb 1616 can be engaged with the side surface of the fixing groove away from the magnetic steel 140 to further enhance the engagement strength between the splint 161 and the base 200 and prevent the protrusion 1615 from falling out of the fixing groove.

[0128] It is worth noting that in order to facilitate the barb 1616 to pass through the fixing groove during assembly, the inner wall of the fixing groove can be provided with a first guide bevel, and the barb 1616 is provided with a corresponding second guide bevel toward the position of the first guide bevel to reduce the amount of scraping between the two, thereby reducing the amount of foreign matter generated during the assembly process and improving product quality.

[0129] In one embodiment, the clamping plate 161 is symmetrically arranged about the guide protrusion 1617 in the first direction X. Specifically, Figure 5 As shown, the first protrusion 1611, the push portion 1612, the groove 1613, the recess 1614, the protrusion 1615 and the barb 1616 are symmetrically arranged on both sides of the guide protrusion 1617 to facilitate the use of the clamping plate 161 during the assembly process.

[0130] Specifically, since the clamping plate 161 is symmetrically designed, the clamping plate 161 can be assembled on one side or the other side of the magnetic steel 140 along the second direction Y, which can reduce assembly difficulty and improve assembly efficiency.

[0131] Finally, it should be noted that: 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.

[0132] In the embodiments of the 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 utility model can be understood according to the specific circumstances.

[0133] In the description of the utility model embodiments, it needs to be understood that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front", and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model embodiments 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 utility model embodiments.

[0134] 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 utility model embodiment. 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.

[0135] The above are only preferred embodiments of the utility model embodiments, and are not intended to limit the utility model embodiments. For those skilled in the art, the utility model embodiments may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model embodiments shall be included in the protection scope of the utility model embodiments.

Claims

1. A magnetic latching relay, characterized in that: include: A clamping plate type magnetic circuit structure, comprising a yoke assembly, a magnetic steel, an armature and a clamping plate assembly, wherein: The armature and the yoke assembly are arranged opposite to each other to form a first direction; The magnetic steel is placed between the armature and the yoke assembly along the first direction and fixed relative to the yoke assembly, and the yoke assembly contacts the magnetic pole on one side of the magnetic steel in the first direction; the magnetic steel and the armature are separately arranged, and the armature contacts the magnetic pole on the other side of the magnetic steel in the first direction; The clamping plate assembly includes two clamping plates, which clamp the armature and the magnet in a second direction and limit the armature and the magnet in a third direction; the second direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction and the first direction.

2. The magnetic latching relay according to claim 1, characterized in that: A first positioning structure is provided between the clamping plate and the magnetic steel, and the first positioning structure is used to limit the relative position of the magnetic steel in the third direction.

3. The magnetic latching relay according to claim 2, characterized in that: The first positioning structure includes a first protrusion disposed on one side of the clamping plate facing the other clamping plate, and the first protrusion abuts against two sides of the magnetic steel in the third direction.

4. The magnetic latching relay according to claim 1, characterized in that: A second positioning structure is provided between the clamping plate and the armature, and the second positioning structure is used for limiting the relative position of the armature in the third direction.

5. The magnetic latching relay according to claim 4, characterized in that: The second positioning structure includes a groove provided on the side of the clamping plate facing the other clamping plate and a second protrusion provided on the surface of the armature. The second protrusion is placed in the matching groove, and the armature can rotate relative to the inner wall of the groove through the second protrusion.

6. The magnetic latching relay according to claim 5, characterized in that: The groove runs through two opposite sides of the clamping plate in the second direction, and the second protrusion does not exceed a surface of one side of the clamping plate that faces away from the other clamping plate.

7. The magnetic latching relay according to any one of claims 1 to 6, characterized in that: A third positioning structure is provided between the clamping plate and the yoke assembly, and the yoke assembly is fixed to the clamping plate assembly through the third positioning structure.

8. The magnetic latching relay according to claim 7, characterized in that: The third positioning structure includes a convex portion and a concave portion that fit each other, one of the convex portion and the concave portion is arranged on the clamping plate, and the other is arranged on the yoke assembly.

9. The magnetic latching relay according to any one of claims 1 to 6, characterized in that: An arc-shaped contact surface is provided between the armature and the magnet, and the armature contacts one side magnetic pole of the magnet through the arc-shaped contact surface, and the armature is rotatably arranged relative to the magnet through the arc-shaped contact surface so that the two ends of the armature are alternately contacted and matched with the yoke assembly.

10. The magnetic latching relay according to claim 9, characterized in that: The yoke assembly includes a first contact portion and a second contact portion arranged opposite to each other in the third direction, the first contact portion is used to contact and cooperate with one end of the armature to form a first snapping surface, and the second contact portion is used to contact and cooperate with the other end of the armature to form a second snapping surface; the second snapping surface is arranged coplanar with the first snapping surface; the magnetic steel is fixed to the first contact portion.

11. The magnetic latching relay according to claim 9, characterized in that: The yoke assembly includes a first contact portion, a second contact portion and a third contact portion. Along the third direction, the first contact portion and the second contact portion are arranged opposite to each other, and the third contact portion is placed between the first contact portion and the second contact portion; the first contact portion is used to contact and cooperate with one end of the armature to form a first snapping surface, and the second contact portion is used to contact and cooperate with the other end of the armature to form a second snapping surface, and the second snapping surface is arranged coplanar with the first snapping surface; the magnetic steel is fixed to the third contact portion.

12. The magnetic latching relay according to any one of claims 1 to 6, characterized in that: The yoke assembly includes a first contact portion; the clamping plate magnetic circuit structure also includes a coil frame, a coil wound on the surface of the coil frame, and an iron core inserted into the coil, and the first contact portion is fixed to an end of the iron core that exposes the coil; An arc-shaped contact surface is provided between the armature and the magnet, and the armature contacts one side magnetic pole of the magnet through the arc-shaped contact surface. The armature is rotatably arranged relative to the magnet through the arc-shaped contact surface so that the two ends of the armature are alternately contacted and matched with the first contact portion and the other end of the iron core.

13. The magnetic latching relay according to any one of claims 1 to 6, characterized in that: The yoke assembly includes a first contact portion and an iron core; the clamping plate magnetic circuit structure also includes a coil frame and a coil wound on the surface of the coil frame, the iron core is inserted into the coil, and the first contact portion is fixed to one end of the iron core that is exposed from the coil; An arc-shaped contact surface is provided between the armature and the magnet, and the armature contacts one side magnetic pole of the magnet through the arc-shaped contact surface. The armature is rotatably arranged relative to the magnet through the arc-shaped contact surface so that the two ends of the armature are alternately contacted and matched with the first contact portion and the other end of the iron core.

14. The magnetic latching relay according to any one of claims 1 to 6, characterized in that: It also includes a base, and the clamping plate type magnetic circuit structure is fixed to the base through the clamping plate assembly.

15. The magnetic latching relay according to claim 14, characterized in that: The base includes a base body and a baffle plate extending from the base body, wherein the baffle plate forms an enclosure space, and at least a portion of the magnetic circuit system is located in the enclosure space.

16. The magnetic latching relay according to claim 15, characterized in that: The baffle plate is provided with guide grooves extending along the third direction on opposite sides of the baffle plate in the second direction; The clamping plate is provided with a guide protrusion on the side facing away from the other clamping plate, and the guide protrusion is placed in the guide sliding groove.

17. The magnetic latching relay according to claim 16, characterized in that: The clamping plate is provided with a clamping protrusion, which protrudes from the surface of the guide protrusion in the first direction and is clamped on the inner wall surface of the guide sliding groove.

18. The magnetic latching relay according to claim 16, characterized in that: The clamping plates are symmetrically arranged about the guide protrusion in the first direction.

19. The magnetic latching relay according to claim 14, characterized in that: An anti-slip structure is provided between the clamping plate and the base.

20. The magnetic latching relay according to claim 19, characterized in that: The anti-drop structure comprises a fixing groove arranged on the base and a protruding portion arranged on the clamping plate, and the protruding portion is interference-fitted with the fixing groove.

21. The magnetic latching relay according to claim 19, characterized in that: The anti-slip structure includes a fixing groove provided on the base and a protrusion provided on the clamping plate, wherein the fixing groove is a through groove, and the protrusion extends from the fixing groove toward one side surface of the magnetic steel to the other side opposite thereto, and a portion of the protrusion extending out of the fixing groove is provided with a barb, and the barb is engaged with the surface of the fixing groove facing away from the magnetic steel.

Images