Relay reed and shell matching structure and clapper type electromagnetic relay

Abstract

The invention relates to the technical field of electromagnetic relays, and particularly discloses a relay reed and shell matching structure and a clapper type electromagnetic relay. The matching structure comprises a reed and a shell which are assembled on the base; the arrangement position of the reeds on the base is close to the corresponding inner wall of the shell; when the shell is assembled on the base, the sleeving direction is along with the extension direction of the pin part of the reed assembled on the base; the pin part of the reed protrudes at the adjacent reed body part and is close to the corresponding inner wall of the sleeved shell; corresponding to the sleeving direction of the shell, the reed is provided with a guide structure which is used for guiding the shell in the sleeving process so as to prevent the shell from abutting against the top end of the pin part. On the basis of improving the performance of the reed, the shell in the sleeving process is effectively dredged through the guide structure on the reed, so that smooth sleeving operation of the shell is guaranteed, the extrusion influence of the shell on the reed arrangement structure in the sleeving process is reduced as much as possible, and / or sweeps are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electromagnetic relays, and in particular to a cooperating structure between a relay reed and a housing, and a clapper electromagnetic relay including the cooperating structure. Background Art

[0002] In the technical field of electromagnetic relays, the housing is usually a cavity structure with an open end, which is used as a mating base to isolate and protect the magnetic circuit part, contact part, etc. arranged on the base. The cooperation structure between the aforementioned housing and the base is that the open structure of the housing basically matches the contour of the base, and the housing is sleeved from the top side of the magnetic circuit part and the contact part arranged on the base to accommodate the magnetic circuit part and the contact part on the base, and is fitted and sealed with glue at the base.

[0003] Due to the special arrangement positions of the contact part and the magnetic circuit part of the electromagnetic relay on the base, a set of reed pieces constituting the contact part are usually arranged adjacent to the inner wall of the corresponding area of the outer shell. For example, the cooperation relationship between the moving reed piece of the clapper-type electromagnetic relay and the outer shell (reference can be made to technologies such as those disclosed in the Chinese patent document with the title "A bobbin for a clapper-type relay and a clapper-type relay", publication number CN 110444445 A, and publication date November 12, 2019), and for another example, the cooperation relationship between the static reed piece of the push-rod type electromagnetic relay and the outer shell (reference can be made to technologies such as those disclosed in the Chinese patent document with the title "A push-rod type relay for preventing the release and rebound of the moving reed", publication number CN117133596 A, and publication date November 28, 2023, or the title "A cooperation structure between a push card and a moving reed piece of a horizontal relay", publication number CN 115274363 A, and publication date November 01, 2022). In the current optimized design of electromagnetic relays, in order to pursue the ultimate cost performance, usually the overall shape of the electromagnetic relay is not adjusted (or the main structure of the molding die is not changed), but it is necessary to improve the current-carrying and heat dissipation performance of the reed pieces, as well as the structural rigidity of the reed pieces assembled on the base. It is necessary to thicken the thinner reed pieces at the pin part (for example, technologies such as those disclosed in the Chinese patent document with the title "A moving reed piece of a high-power electromagnetic relay and its manufacturing method", publication number CN104851748 A, and publication date August 19, 2015). And this thickening treatment usually occupies the arrangement space towards the side of the outer shell adjacent to the reed piece, that is, the thickening treatment of the reed piece at the pin part is formed by protruding towards the outer shell side. In this way, a boss structure will be formed on the surface of the reed piece facing the outer shell at the pin part. Also, because the cooperation space between the reed piece adjacent to the outer shell and the outer shell is already narrow, the existence of the boss structure at the pin part of the reed piece makes the reed piece and the outer shell that are assembled in place on the base tend to form a contact cooperation relationship (that is, the corresponding inner wall of the outer shell and the corresponding surface of the pin part of the reed piece form a cooperation relationship that tends to contact). In this way, the boss structure at the pin part of the reed piece is extremely likely to interfere with the position of the outer shell and abut and jam during the process of sleeving the outer shell on the base. This not only affects the assembly operation efficiency of the electromagnetic relay, but also has an adverse impact on the performance of the finished electromagnetic relay (including the extrusion deformation of the outer shell on the reed piece arrangement structure, and / or the scraping of the outer shell by the reed piece to generate waste chips remaining in the cavity of the outer shell), and this is particularly prominent in the cooperation relationship between the moving reed piece and the outer shell of a small-sized clapper-type electromagnetic relay (also known as a "sugar cube type" electromagnetic relay) with a compact design and small volume. Summary of the Invention

[0004] The technical purpose of the present invention is to provide a spring and shell matching structure that can effectively facilitate the shell fitting process and prevent the shell from abutting and jamming at the pin boss adjacent to the spring during the fitting process, in view of the particularity of the pursuit of ultimate cost-effectiveness in the current electromagnetic relay optimization design and the existing technical problems, and a snap-on electromagnetic relay including the matching structure.

[0005] The technical purpose of the present invention is achieved by the following technical solution: a relay reed and housing matching structure, comprising a reed and a housing assembled on a base; The arrangement position of the reed on the base is close to the corresponding inner wall of the shell; When the housing is assembled on the base, the mounting direction is along the extension direction of the pin portion of the spring assembled on the base; The pin portion of the reed protrudes from the adjacent reed body portion and is close to the corresponding inner wall of the housing on which it is mounted; Corresponding to the installation direction of the housing, the spring sheet has a guiding structure for guiding the housing during the installation process to prevent the housing from abutting against the top end of the pin portion.

[0006] The above technical measures are aimed at the particularity of the pursuit of the ultimate cost-effectiveness in the current optimized design of electromagnetic relays. The pin part of the reed close to the shell is designed with a thickened structure close to the shell, so as to effectively improve the current carrying performance and structural rigidity of the reed and reduce the temperature rise. Under the premise of basically not changing the external structure of the electromagnetic relay, the performance of the reed is reliably improved to meet the technical requirements. On this basis, based on the phenomenon that the protruding structure of the pin part of the reed will interfere with the corresponding inner wall of the shell during the assembly process, the shell during the assembly process is effectively guided by the guide structure on the reed to prevent the shell during the assembly process from abutting and blocking the pin part of the reed at the boss, thereby ensuring the smooth assembly of the shell, and minimizing the squeezing effect of the shell on the arrangement structure of the reed during the assembly process, and / or reducing the generation of waste chips.

[0007] As one of the preferred technical solutions, the guide structure is formed at the top outer edge of the pin part, and is a curved surface structure / inclined surface structure at the top outer edge of the pin part that caters to the direction of the shell fitting. This technical measure is aimed at the thickening design of the spring pin part and the particularity of fitting with the adjacent shell. Through the guide structure at the top outer edge of the pin part, the shell fitting to the top of the pin part is effectively guided, so that there will be no abutment and jamming at the boss of the pin part.

[0008] Furthermore, the pin portion has a multi-layer laminated structure, including a pin base portion extending from the reed body portion, and multiple laminations stacked on the side of the pin base portion adjacent to the sleeved housing; The guiding structure is a guiding hem with a curved surface structure / inclined surface structure formed at the top of the lamination away from the pin base portion.

[0009] The thickening design structure of the pin portion of the above technical measures can effectively increase the heat dissipation area of the pin portion and reduce its temperature rise while meeting the structural rigidity. Based on the thickening design of this laminated structure, through the guiding hem at the top of the outermost lamination (i.e., the lamination away from the pin base portion), it can form a chamfer protection for the outer edge of the top of the convex structure of the pin portion to eliminate the sharp edges that conform to the housing sleeving, effectively guide the housing during the sleeving process, and minimize the generation of scraping waste during the sleeving process.

[0010] Still further, the pin portion has a three-layer laminated structure, including a pin base portion extending from the reed body portion, a left wing extending from the left side of the pin base portion in the transverse width direction and mating with the pin base portion after lamination, and a right wing extending from the right side of the pin base portion in the transverse width direction and mating with the pin base portion after lamination; The left wing has a laminated structure that folds back to the right in the transverse width direction and is laminated on the surface of the pin base portion / the right wing facing the housing; The right wing has a laminated structure that folds back to the left in the transverse width direction and is laminated on the surface of the pin base portion / the left wing facing the housing.

[0011] Based on the pin base portion extending from the reed body portion, the above technical measures integrally form wings extending from the left and right sides respectively. The pin portion with a laminated structure formed by the folding back of the two wings at the corresponding surfaces can, on the one hand, make the thickened pin portion easy to form and control the forming cost; on the other hand, it can effectively ensure the balance of its heat dissipation performance and avoid local overheating.

[0012] Furthermore, the reed body portion above the pin portion has a convex guiding protrusion adjacent to the corresponding inner wall of the sleeved housing; The guiding protrusion has a curved surface structure / inclined surface structure that conforms to the housing sleeving direction.

[0013] The above technical measures form a guiding structure on the reed that is independent of the top of the pin part. This guiding structure cooperates with the guiding structure at the top of the pin part during the process of sleeving the outer shell, so that the guiding structure guides the outer shell during the sleeving process prior to the guiding structure at the top of the pin part, to ensure that the outer shell during the continuous sleeving process can cooperate with the guiding structure at the top of the pin part, thus basically not tilting to the root of the top of the pin part (i.e., the area where the pin part is adjacent to the reed body part), reducing or even avoiding position interference that affects the sleeving operation between the outer shell and the area not covered by the guiding structure at the top of the pin part during the sleeving process.

[0014] Furthermore, the maximum protrusion height of the guiding protrusion from the first side surface of the reed body part is greater than or equal to the minimum distance between the guiding surface of the guiding structure on the outer edge of the top of the pin part and the first side surface of the reed body part, and less than the maximum distance between the guiding surface of the guiding structure on the outer edge of the top of the pin part and the first side surface of the reed body part; The first side surface of the reed body part is the surface of the reed body part where the guiding protrusion is provided.

[0015] The above technical measures connect the guiding structure independent of the top of the pin part with the guiding range of the guiding structure at the top of the pin part during the outer shell sleeving process, to ensure that the outer shell guided by the guiding protrusion can accurately cooperate with the guiding structure at the top of the pin part during the continuous sleeving process, thus not tilting to the root of the top of the pin part (i.e., the area where the pin part is adjacent to the reed body part), and avoiding position interference that affects the sleeving operation between the outer shell and the area not covered by the guiding structure at the top of the pin part during the sleeving process. Therefore, the connection and cooperation relationship between the above guiding protrusion and the guiding structure at the top of the pin part has a more stable and reliable guiding effect on the outer shell sleeving.

[0016] Furthermore, the guiding protrusion is a stamping convex bud structure integrally formed on the reed body part. The guiding protrusion of this technical measure is easy to form on the reed, and can control the forming cost, with good stability. At the same time, the protrusion height can be determined adaptively according to design requirements, and has better flexibility compared with the combined connection structure. In addition, by stamping the convex bud structure in an integrally formed manner on the reed to form the guiding protrusion, the current-carrying area of the reed can be kept intact without affecting the current-carrying effect of the reed.

[0017] A clapper-type electromagnetic relay includes a bobbin and a moving reed assembly and an outer shell assembled on the bobbin; Between the moving reed assembly and the outer shell, there is the above-mentioned matching structure.

[0018] Furthermore, the bobbin is of an I-shaped structure, having base side baffles and contact side baffles at both ends of the winding cylinder; An L-shaped yoke is mounted on the side baffle of the base, and the blade of the yoke extends to the contact side baffle; At the knife edge of the yoke, an armature located outside the contact side baffle is assembled through the movable spring assembly; The movable spring pin portion of the movable spring assembly is mounted on the base side baffle at the yoke; The direction from the contact side baffle plate to the base side baffle plate is used as the installation direction of the shell on the coil frame.

[0019] The above technical measures are aimed at the particularity of the forming structure of the snap-fit ​​electromagnetic relay, and the dynamic spring assembly and the shell are formed with the above matching structure, so that under the premise of basically not changing the external structure of the electromagnetic relay, the current carrying performance of the dynamic spring assembly can be effectively improved, the temperature rise can be reduced, and the structural rigidity of the dynamic spring assembly assembled on the coil frame can be improved, which is conducive to improving the anti-drop performance. On this basis, based on the phenomenon that the raised structure of the dynamic spring pin of the dynamic spring assembly will interfere with the corresponding inner wall of the shell during the assembly process, the shell during the assembly process is effectively guided to prevent the shell and the dynamic spring pin from abutting and blocking at the boss during the assembly process, thereby ensuring the smooth assembly of the shell of the snap-fit ​​electromagnetic relay and ensuring the molding quality of the snap-fit ​​electromagnetic relay.

[0020] As one of the preferred technical solutions, the movable spring assembly is laterally assembled on the coil frame in a direction corresponding to the assembly direction of the yoke on the side baffle of the base; Correspondingly, the side baffle plate of the base at the yoke iron has a side groove for the movable spring with a U-shaped open structure; During the process of installing the movable spring assembly on the coil frame, the movable spring pin portion is installed on the base side baffle through the opening of the movable spring side installation groove; The inner wall of the shell has a rubber retaining rib with a convex structure corresponding to the side groove of the dynamic spring; During the installation process of the housing, the rubber retaining rib is close to the movable spring assembly at the yoke; And the shell is put into place, so that the rubber blocking rib cooperates with the movable spring side mounting groove to form a limited assembly of the movable spring assembly on the base side baffle.

[0021] For the clapper - type electromagnetic relay with the above - mentioned technical measures, the assembly direction of the moving spring assembly on the coil bobbin is changed to adapt to the structural limitations at the contact - side baffle or match the lateral assembly of the yoke iron assembly, which is different from the traditional insertion from the contact - section baffle to the base - side baffle. Therefore, a moving - spring side - mounting groove adapted to the lateral assembly needs to be formed on the base - side baffle of the coil bobbin to position the pin part of the laterally - assembled moving spring; meanwhile, a glue - blocking rib adapted to the moving - spring side - mounting groove needs to be formed at the corresponding inner wall of the outer shell to resist and limit the pin part of the laterally - assembled moving spring in the moving - spring side - mounting groove and seal it with glue. That is, the glue - blocking rib of the outer shell cooperates with the moving - spring side - mounting groove of the base - side baffle to achieve the technical effect of the pin insertion hole during the traditional insertion of the moving - spring assembly.

[0022] Furthermore, on the surface of the moving - spring side - mounting groove that faces the pin part of the moving spring, at least one glue - flowing groove corresponding to the thickness direction of the base - side baffle is formed in an uneven structure. When the pin part of the moving spring is assembled in place in the moving - spring side - mounting groove, the corresponding surface of the pin part of the moving spring cooperates with the facing surface of the moving - spring side - mounting groove. And / or, on the surface of the glue - blocking rib that faces the pin part of the moving spring, at least one glue - flowing groove corresponding to the sleeving direction is formed in an uneven structure. When the glue - blocking rib is assembled in place in the moving - spring side - mounting groove, the surface of the glue - blocking rib that faces the pin part of the moving spring cooperates with the corresponding surface of the pin part of the moving spring.

[0023] The above - mentioned technical measures not only ensure that the outer shell cooperates with the base - side baffle to restrict and limit the pin part of the laterally - assembled moving spring, but also can form a glue - flowing groove for glue - sealing at the restricted and limited position, so that the cooperation between the outer shell and the coil bobbin forms a stable and sealed assembly for the moving - spring assembly.

[0024] Furthermore, on the contact - side baffle of the coil bobbin, there are limit retaining buckles formed by protrusions on both sides of the armature and / or the moving - spring assembly in the transverse width direction to restrict and limit the outward turning movement. The two groups of limit retaining buckles on the contact - side baffle constitute a threading channel for the lateral assembly of the moving - spring assembly. When the moving - spring assembly is laterally assembled on the coil bobbin, the moving - spring assembly and / or the armature pass through the threading channel formed by the limit retaining buckles on the contact - side baffle.

[0025] The above technical measures aim at the particularity of the snap-on relay, and form a limiting structure on the contact side baffle of the coil frame that can constrain and limit the outward movement of the assembled armature and movable spring. At the same time, the limiting structure constrains and limits the armature and movable spring on both sides of the horizontal width direction, thereby forming a three-dimensional limit for the armature and movable spring in the outward and horizontal width directions, which is beneficial to improving the technical effect of the armature's anti-fall. However, due to the existence of the above-mentioned limiting buckle structure, there is a structural restriction on the outer side of the contact side baffle that interferes with the armature and / or the movable spring in the horizontal width direction. The assembly of the movable spring and the armature connected to the movable spring on the coil frame cannot adopt the traditional insertion from the contact section baffle to the base side baffle, and can only be changed to a lateral assembly corresponding to the insertion channel formed by the limiting buckle to match the lateral assembly of the above-mentioned movable spring assembly on the coil frame.

[0026] Furthermore, the limit stop buckle on the contact side baffle is formed at a corresponding corner of the armature away from the yoke end; The limit stop buckle has a front stop column at the end of the armature, and a top folded edge folded back on the front stop column to the top side of the armature, and the top folded edge cooperates with the front stop column in an L-shaped structure.

[0027] The above technical measures are aimed at the lateral assembly of the movable spring assembly on the coil frame, so that the limit stopper constituting the lateral assembly threading channel forms a constraint limit at the end of the armature adjacent to the contact mating area, thereby cooperating with the above-mentioned constraint limit in the outward turning direction and the horizontal width direction, forming a three-dimensional constraint limit for the armature in the front-to-back direction (i.e. corresponding to the direction from the yoke to the contact mating area), the up-down direction (i.e. the outward turning direction, corresponding to the direction of the base side baffle and the contact side baffle), and the left-to-right direction (i.e. the horizontal width direction, corresponding to the horizontal width of the armature and the movable spring sheet, perpendicular to the front-to-back direction), which has a reliable anti-fall effect on the armature.

[0028] Furthermore, the limit stopper also has a side folded edge folded back on the front stopper to the left / right side of the armature, and the side folded edge cooperates with the front stopper in an L-shaped structure. The limit stopper of this technical measure can three-dimensionally constrain the armature while having a simple and clear structure, and is easy to form the coil frame.

[0029] Furthermore, the side folded edge of the limit stopper is folded downward at the corresponding edge of the top folded edge, and the side folded edge cooperates with the top folded edge in an L-shaped structure, and the bottom edge of the side folded edge cooperates with the contact side baffle in a spacing. This technical measure not only achieves three-dimensional constraint and limitation on the armature, but also forms a process clearance gap (i.e., the spacing matching structure between the bottom edge of the side folded edge and the contact side baffle) at the left / right side of the limit stopper corresponding to the horizontal width direction of the armature, so as to ensure that the process test (such as OT tracking test) of the entire electromagnetic relay can be easily and reliably implemented.

[0030] The beneficial technical effect of the present invention is that the above technical measures are aimed at the current electromagnetic relays, especially the snap-on electromagnetic relays, and the pin part of the spring sheet adjacent to the shell is designed with a thickened structure adjacent to the shell in the optimization design to effectively improve the current carrying performance and structural rigidity of the spring sheet and reduce the temperature rise. Under the premise of basically not changing the external structure of the electromagnetic relay, the performance of the spring sheet is reliably improved to meet the technical requirements. On this basis, based on the phenomenon that the protruding structure of the pin part of the spring sheet will interfere with the corresponding inner wall of the shell during the assembly process, the shell during the assembly process is effectively guided by the guide structure on the spring sheet to prevent the shell during the assembly process from abutting and blocking the pin part of the spring sheet at the boss, thereby ensuring the smooth assembly of the shell, and reducing the extrusion effect of the shell on the arrangement structure of the spring sheet during the assembly process as much as possible, and / or reducing the generation of waste chips, which is especially more suitable and adaptable for the side-mounted structure of the movable spring assembly of the snap-on electromagnetic relay on the coil frame, and the corresponding inner wall of the shell needs to form a matching structure of the rubber-blocking convex rib. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the electromagnetic relay of the present invention.

[0032] Figure 2 for Figure 1 The schematic diagram of the structure of the shell being mounted on the coil frame is shown.

[0033] Figure 3 for Figure 2 A partial enlarged view of the .

[0034] Figure 4 for Figure 3 A schematic diagram of the matching relationship between the guide protrusion and the guide fold of the dynamic spring assembly in the guide range is shown.

[0035] Figure 5 for Figure 1 The three-dimensional structure diagram of the electromagnetic relay after the shell is removed is shown.

[0036] Figure 6This is a schematic structural diagram of the moving spring component of the present invention (the moving contact is not shown).

[0037] Figure 7 is Figure 6 the right view of.

[0038] Figure 8 is Figure 6 and Figure 7 the perspective view of the moving spring component shown.

[0039] Figure 9 is Figure 8 the partial enlarged view in.

[0040] Figure 10 This is the schematic structural diagram of the three-layer laminated moving spring pin part of the moving spring component of the present invention in the unfolded state.

[0041] The meanings of the codes in the figure are as follows: 1—coil holder; 11—winding cylinder; 12—base side baffle; 13—contact side baffle; 14—yoke iron assembly groove; 15—limit retaining buckle; 151—front retaining post; 152—top side folding edge; 153—side side folding edge; 16—moving spring side mounting groove; 2—moving spring component; 21—moving spring body part; 21′—first side surface; 22—moving spring pin part; 221—pin base part; 222—left wing; 223—right wing; 23—guide protrusion; 24—guide folding edge; 24′—guide surface; 3—outer shell; 31—rubber blocking rib; 4—yoke iron; 5—armature; 6—static spring component; A—sleeving direction; B—reference line; C—left wing folding axis; D—right wing folding axis; E—maximum protrusion height of the guide protrusion; F—minimum mating distance of the guide surface; G—maximum mating distance of the guide surface. Detailed implementation manners

[0042] The present invention relates to the technical field of electromagnetic relays, specifically a relay reed and outer shell matching structure, and a clapper-type electromagnetic relay including this matching structure. The main technical solution content of the present invention will be specifically described below in combination with multiple embodiments. Among them, Embodiment 1 is combined with the specification drawings - that is Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 ,Figure 7 , Figure 8 , Figure 9 and Figure 10 clearly and detailedly explain the technical solution content of the present invention; although other embodiments are not separately drawn with drawings, their main structures can still refer to the drawings of Embodiment 1.

[0043] It should be specifically noted here that the drawings of the present invention are schematic. In order to clarify the technical purpose of the present invention, unnecessary details have been simplified to avoid obscuring the technical solution contributed by the present invention to the prior art. In addition, expressions such as "about" and "substantially" regarding quantity or mating relationship in the following text mean that reasonable assembly errors, processing errors, etc. in the industry are allowed, rather than literally expressing absolute quantity or mating relationship.

[0044] Embodiment 1 See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the structure of the reed and the housing of the present invention is adapted to a clapper - type electromagnetic relay.

[0045] As Figure 1 , Figure 2 and Figure 5 shown, the clapper - type electromagnetic relay of the present invention includes a bobbin 1 with an I - shaped structure, and a coil, an iron core, a yoke 4, an armature 5, a moving reed assembly 2, a static reed assembly 6 and a housing 3 assembled on the bobbin 1.

[0046] Since the electromagnetic relay of the present invention is a three - dimensional structure and is composed of multiple components, in the following clear description of the component structure and the mutual cooperation relationship, it is inevitable to use orientation words, such as front - rear, up - down, left - right, inside - outside, transverse width, longitudinal length, etc. Therefore, to avoid confusion and misunderstanding of orientation words, the following explanations are made specifically: taking the position area where the yoke blade is located in the electromagnetic relay structure as "rear", taking the position where the contact mating area corresponding to the yoke blade is located as "front", taking the position of the contact side baffle of the bobbin as "up", taking the position of the base side baffle of the bobbin as "down", taking Figure 5The yoke position shown distinguishes the "left" and "right" relative positions in the front view direction along the transverse width direction of the armature / moving reed. The direction towards the center position of the bobbin is "inward", and the direction away from the center position of the bobbin is "outward". The length direction / longitudinal direction is from the pin part to the contact part of the reed, and the transverse width / width direction (corresponding to the left-right direction) is perpendicular to the longitudinal length. For other possible directional terms used, such as "bottom" and "top", refer to the above explanations. For example, "bottom" corresponds to "down" and "top" corresponds to "up".

[0047] As Figure 1 , Figure 2 and Figure 5 shown, the bobbin 1 has an integrally formed winding cylinder 11, a base side baffle 12 at the lower end of the winding cylinder 11, and a contact side baffle 13 at the upper end of the winding cylinder 11. Among them, the base side baffle 12 assembles the yoke 4, the pins of the coil, the moving reed pin part 22 of the moving reed assembly 2, and the static reed pin part of the static reed assembly 6, and fits into the open end of the housing 3. Therefore, a yoke assembly groove 14 is formed on the base side baffle 12, and the open end of the yoke assembly groove 14 faces backward, away from the contact area of the contacts on the outside of the following contact side baffle 13. The contact side baffle 13 assembles the armature 5, a part of the moving reed body part 21 of the moving reed assembly 2, and a part of the static reed body part of the static reed assembly 6. On the outside of the contact side baffle 13, the following limiting retaining buckle 15 is integrally formed and protruded.

[0048] As Figure 1 , Figure 2 and Figure 5 shown, in order to constrain and limit the armature 5 assembled on the outside of the contact side baffle 13 and improve the anti-drop technical effect on the armature 5, at the outside of the contact side baffle 13 of the bobbin 1, at the front two corner parts corresponding to the position where the armature is to be assembled, two groups of limiting retaining buckles 15 that can constrain and limit the assembled armature 5 are integrally formed and protruded.

[0049] Specifically, each group of limiting retaining buckles 15 has a front retaining post 151 at the corresponding corner part of the front end of the assembled armature 5, and a top-side folding edge 152 that folds back to the top side of the assembled armature 5 on the front retaining post 151, and a side-side folding edge 153 that folds back to the corresponding side part of the assembled armature 5 on the front retaining post 151. The side-side folding edge 153 folds down at the corresponding side part of the top-side folding edge 152. The top-side folding edge 152 and the front retaining post 151 are in an L-shaped structure fit; the side-side folding edge 153 and the front retaining post 151 are in an L-shaped structure fit; the side-side folding edge 153 and the top-side folding edge 152 are in an L-shaped structure fit. To meet the technical requirements of process testing, the bottom edge of the side-side folding edge 153 of the limiting retaining buckle 15 has a spacing fit with the contact side baffle 13, leaving an operating space for process testing.

[0050] The forming structure of the two groups of limiting buckles 15 on the above-mentioned contact side baffle 13 restricts the insertion (i.e., forward assembly) space of the armature 5 and the moving spring assembly 2 on the coil bobbin 1 in the up and down directions. That is to say, when the armature 5 and the moving spring assembly 2 are inserted onto the coil bobbin 1 in the direction from top to bottom, due to the existence of the two groups of limiting buckles 15, the armature 5 and the moving spring assembly 2 cannot be inserted to the set position. Therefore, based on the existence of the two groups of limiting buckles 15, the armature 5 and the moving spring assembly 2 cannot be inserted in the traditional up and down directions, so the lateral assembly needs to be adopted. In this way, the two groups of limiting buckles 15 form a through-channel for the backward-to-forward insertion (i.e., lateral assembly) of the armature 5 and the moving spring assembly 2 on the outside of the contact side baffle 13.

[0051] As Figure 1 , Figure 2 and Figure 5 shown, the yoke 4 has an L-shaped structure, which corresponds to the bottom of the lateral structure corresponding to Figure 1 and Figure 2 . It is inserted into the yoke assembly groove 14 of the base side baffle 12 of the above-mentioned coil bobbin 1 in a lateral assembly manner, and its corresponding Figure 1 and the vertical structure in Fig. 2 extend vertically upward at the open end of the yoke assembly groove 14, and the vertical top of the yoke 4 is at the contact side baffle 13 of the coil bobbin 1.

[0052] As Figure 1 , Figure 2 and Figure 5 shown, the armature 5 is arranged outside the contact side baffle 13 of the coil bobbin 1. The rear end of the armature 5 is located at the knife-edge position of the yoke 4, and the front end of the armature 5 is within the constraint range of the above two groups of limiting buckles 15. Of course, the armature 5 cannot be directly suspended and assembled outside the contact side baffle 13, but needs to be supported by the moving spring assembly 2 connected to the yoke 4. The assembly structure of the armature 5 outside the contact side baffle 13 needs to adapt to the electromagnetic suction force and the elasticity of the moving spring assembly 2 to perform downward (inward) / upward (outward) flipping actions. Therefore, the armature 5 should be in clearance fit with the above two groups of limiting buckles 15 respectively, and the clearance size of this clearance fit allows the armature 5 to perform flipping actions according to the design requirements.

[0053] As Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8As shown, the moving spring body part 21 of the moving spring assembly 2 is an L-shaped bent structure. The bottom of its vertical part has a moving spring pin part 22, and the front part of its horizontal part has a moving spring contact part. The vertical part of the moving spring body part 21 is connected to the outer side surface of the above-mentioned yoke 4, and the horizontal part is connected to the outer side surface of the armature 5, so that the rear end of the armature 5 is assembled at the top of the yoke 4 through the moving spring body part 21 (in the industry, the top where the yoke assembles the armature is usually called the "knife edge"). Under the action of the electromagnetic attraction force and the moving spring body part 21, the armature 5 can take the knife edge position of the yoke 4 as the "hinge axis" and generate inward / outward flipping actions.

[0054] To improve the anti-drop constraint and limiting effect on the armature 5, a moving spring relief notch can be opened in the middle of the moving spring body part 21 corresponding to the knife edge position of the yoke 4, and a boss that can abut against the knife edge position is formed in the corresponding inner wall area of the following housing 3, so that the boss cooperates with the limiting buckle 15 outside the contact side baffle 13 to form a three-dimensional constraint and limit on the armature 5 in the front-back direction, up-down direction and left-right direction, making the anti-drop technical effect on the armature 5 be excellently demonstrated. Of course, the aforementioned boss on the housing 3 should have a clearance fit with the armature 5 to allow flipping actions. To further constrain the armature 5 at the knife edge position of the yoke 4, the armature 5 has a U-shaped armature positioning notch within the coverage of the moving spring relief notch at the knife edge position of the yoke 4. When the housing 3 is assembled in place on the coil bobbin 1, the aforementioned boss of the housing 3 passes through the moving spring relief notch of the moving spring body part 21 and is inserted into the armature positioning notch of the armature 5.

[0055] As Figure 1 、 Figure 2 and Figure 5 shown, based on the cooperation of the moving spring assembly 2 with the L-shaped structure and the yoke 4 and the armature 5, the moving spring pin part 22 of the moving spring assembly 2 is assembled on the base side baffle 12 of the coil bobbin 1 at the yoke 4, and the moving spring contact part of the moving spring assembly 2 extends out of the front end of the armature 5 and cooperates with the static spring assembly 6, that is, the arrangement position of the moving spring assembly 2 on the coil bobbin 1 is close to the corresponding inner wall of the housing 3 to be sleeved. As described above, due to the limitation of the limiting buckle 15, the assembly of the armature 5 and the moving spring assembly 2 on the coil bobbin 1 can only be carried out by lateral assembly, that is, the moving spring assembly 2 is laterally assembled on the coil bobbin 1 in the assembly direction corresponding to the yoke 4 on the base side baffle 12. Therefore, to adapt to this lateral assembly, the base side baffle 12 at the yoke 4 has a moving spring side mounting groove 16 with a U-shaped open structure, which is different from the traditional moving spring pin insertion hole; during the process of the moving spring assembly 2 being inserted into the coil bobbin 1, the moving spring pin part 22 is assembled on the base side baffle 12 through the open end of the moving spring side mounting groove 16.

[0056] As Figure 1 、 Figure 2 、Figure 3、 Figure 5, Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown in Figure 6 , Figure 7 , Figure 8 and Figure 9 , in order to improve the current-carrying performance of the moving reed with a relatively thin thickness, reduce the temperature rise, and improve the structural rigidity, the moving reed pin part 22 of the moving reed assembly 2 is a laminated structure. The moving reed pin part 22 of this laminated structure protrudes from the adjacent moving reed body part 21, and the protruding direction is opposite to that of the yoke iron 4, that is, it is close to the corresponding inner wall of the sleeved housing 3.

[0057] As Figure 8 , Figure 9 and Figure 10 As shown in Figure 8 , Figure 9 and Figure 10 , the moving reed pin part 22 of the moving reed assembly 2 is a three-layer laminated structure, which has a pin base part 221 extending from the moving reed body part 21, and a left wing 222 extending from the left side of the pin base part 221 in the transverse width direction (that is, the left-right direction shown in Figure 10 ), and a right wing 223 extending from the right side of the pin base part 221 in the transverse width direction. The forming profile of the pin base part 221 is adapted to the assembly limit in the moving reed side mounting groove 16 of the base side baffle 12 and has a boss structure. The left wing 222 takes the connection structure with the pin base part 221 as the left wing folding axis C and is laminated on the surface of the pin base part 221 facing the housing 3 in a way of folding to the right in the transverse width direction; the contour structure of the laminated left wing 222 cooperates with the pin base part 221. The right wing 223 takes the connection structure with the pin base part 221 as the right wing folding axis D and is laminated on the surface of the left wing 222 facing the housing 3 in a way of folding to the left in the transverse width direction; the contour structure of the laminated right wing 223 cooperates with the pin base part 221.

[0058] As Figure 2 As shown in Figure 2 , for the housing 3 of the above-mentioned clapper-type electromagnetic relay, the direction from the contact side baffle 13 of the coil bobbin 1 to the base side baffle 12 is taken as the sleeving direction A on the coil bobbin 1. That is to say, when the housing 3 is assembled on the coil bobbin 1, the sleeving direction A follows the extending direction of the moving reed pin part 22 when the moving reed assembly 2 is assembled on the coil bobbin 1.

[0059] As Figure 1 , Figure 2 and Figure 3 ​​As shown, since the moving spring pin part 22 of the above-mentioned moving spring component 2 protrudes at the adjacent moving spring body part 21 and is close to the corresponding inner wall of the sleeved housing 3, in a compact design structure, there is a phenomenon of position interference during the sleeving process with the housing 3. This position interference is particularly prominent with the presence of the glue-blocking rib 31 on the housing 3. This is because the above-mentioned moving spring component 2 needs to be laterally assembled on the base side baffle 12, and a moving spring side mounting groove 16 with a U-shaped structure opening is provided on the base side baffle 12. After the moving spring pin part 22 is assembled in place in the moving spring side mounting groove 16, the redundant part needs to be blocked to meet the technical requirements of dispensing and sealing. Therefore, the inner wall of the housing 3 has a glue-blocking rib 31 with a convex structure corresponding to the moving spring side mounting groove 16 on the base side baffle 12. During the sleeving process of the housing 3, the glue-blocking rib 31 is close to the moving spring component 2 at the yoke iron 4; the sleeved housing 3 makes the glue-blocking rib 31 cooperate with the moving spring side mounting groove 16 to form a limit assembly for the moving spring component 2 on the base side baffle 12, that is, the glue-blocking rib 31 abuts and cooperates (including abutting cooperation or micro-gap cooperation allowed by the design) with the corresponding surface of the moving spring pin part 22.

[0060] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, based on the protrusion of the moving spring pin part 22 of the above-mentioned moving spring component 2 towards the housing 3 and the phenomenon of position interference during the sleeving process with the housing 3, in order to prevent the moving spring pin part 22 from abutting and jamming the housing 3 during the sleeving process, at the outer edge of the top end of the moving spring pin part 22 (i.e., near the top corner of the housing 3), corresponding to the sleeving direction A of the housing 3, a guiding folded edge 24 with a curved surface structure is bent and formed. The guiding folded edge 24 guides the housing 3 during the sleeving process to prevent the housing 3 from abutting at the top end of the moving spring pin part 22. The aforementioned guiding folded edge 24 is an extended and bent structure at the top end of the right wing piece 223 of the above-mentioned moving spring pin part 22. It forms an upward and inward arc-shaped bend at the top end of the overlapping pin part 22 of the overlapping structure to eliminate the boss existing due to the moving spring pin part 22 being a convex structure. Thus, when the housing 3 in the sleeving process may abut the guiding folded edge 24, it is guided by the curved surface structure of the guiding folded edge 24 and will not occur abutting and jamming, and continues to move forward to complete the sleeving process.

[0061] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 andFigure 9 As shown, relying solely on the guiding flanging 24 at the top of the moving contact pin part 22 to guide the housing 3 during the sleeving process, the guiding effect is relatively limited. There is a risk that the housing during the sleeving process may be skewed and abut against the root of the protrusion of the moving contact pin part 22 (i.e., the area where the moving contact pin part 22 is adjacent to the moving contact body part 21), resulting in jamming. To supplement the guiding effect of the guiding flanging 24 at the top of the moving contact pin part 22, on the moving contact body part 21 above the moving contact pin part 22, a guiding protrusion 23 protruding toward the corresponding inner wall side of the housing 3 is formed in an integrally formed stamping convex structure. The guiding protrusion 23 has a curved surface structure that caters to the sleeving direction A of the housing 3.

[0062] As Figure 4 shown, the guiding protrusion 23 of the moving contact body part 21, as a supplement to the guiding effect of the guiding flanging 24 of the moving contact pin part 22, the guiding ranges of the two are connected and matched. Specifically, taking the surface of the moving contact body part 21 used for forming the guiding protrusion 23 as a reference datum plane - that is, the first side surface 21'; the maximum protrusion height of the guiding protrusion 23 from the first side surface 21' of the moving contact body part 21 (i.e., Figure 4 the maximum protrusion height E of the guiding protrusion in [reference], is slightly greater than (to ensure the connection and matching effect in the sleeving direction A, at least equal to) the minimum distance between the guiding surface 24' of the guiding flanging 24 (i.e., the guiding structure at the outer edge of the top of the pin part) and the first side surface 21' of the moving contact body part 21 (i.e., Figure 4 the minimum mating distance F of the guiding surface in [reference]), but should be less than the maximum distance between the guiding surface 24' of the guiding flanging 24 and the first side surface 21' of the moving contact body part 21 (i.e., Figure 4 the maximum mating distance G of the guiding surface in [reference]); expressing the connection and matching relationship between the aforementioned guiding protrusion 23 and the guiding flanging 24 in a relational expression should be: F ≤ E < G. That is to say, in the sleeving direction A of the housing 3, the maximum guiding boundary of the guiding protrusion 23 should be within the coverage range of the guiding flanging 24 at the outer edge of the top of the moving contact pin part 22, that is, the guiding range of the guiding protrusion 23 and the guiding range of the guiding flanging 24 form an overlapping and matching connection relationship on the side of the surface where the moving contact body part 21 is located. In this way, the vertical extension line - reference line B of the minimum guiding boundary of the guiding flanging 24 facing the moving contact body part 21 should be within the coverage range of the guiding protrusion 23; as mentioned above, in the aforementioned connection and matching relationship, it does not uniquely refer to the maximum guiding boundary of the guiding protrusion 23 being aligned with the minimum guiding boundary of the guiding flanging 24. Usually, the maximum guiding boundary of the guiding protrusion 23 exceeds the minimum guiding boundary of the guiding flanging 24 but is within the maximum guiding boundary range of the guiding flanging 24. In this way, during the sleeving process of the housing 3, when the housing moves to the guiding protrusion 23, it is guided downward by the catering curved surface of the guiding protrusion 23 and will not be too close to the moving contact body part 21, and is guided by the catering curved surface of the guiding flanging 24 during the continuous moving process.

[0063] In the above-mentioned cooperation relationship between the moving contact spring assembly 2, the bobbin 1, and the housing 3, in order to limit the laterally mounted moving contact spring assembly 2 in place and achieve glue sealing, on the surface of the moving contact spring lateral mounting groove 16 that caters to the moving contact spring pin part 22 (i.e., the surface facing the glue-blocking rib 31 of the housing 3), at least one glue-flow groove corresponding to the thickness direction of the base side baffle 12 is formed in an uneven structure. When the moving contact spring pin part 22 is assembled in place in the moving contact spring lateral mounting groove 16, the inner surface of the moving contact spring pin part 22 abuts in cooperation (including abutting cooperation or a micro-gap cooperation allowed by the design) against the catering surface of the moving contact spring lateral mounting groove 16. On the surface of the glue-blocking rib 31 that caters to the moving contact spring pin part 22, at least one glue-flow groove corresponding to the sleeving direction A is formed in an uneven structure. When the glue-blocking rib 31 is assembled in place in the moving contact spring lateral mounting groove 16, the surface of the glue-blocking rib 31 that caters to the moving contact spring pin part 22 abuts in cooperation (including abutting cooperation or a micro-gap cooperation allowed by the design) against the corresponding surface of the moving contact spring pin part 22.

[0064] Embodiment 2 The other contents of this embodiment are the same as those of Embodiment 1, and the differences are as follows: The guiding folded edge at the top of the moving contact spring pin part has a bent inclined surface structure on the surface that caters to the housing sleeving direction; And / or, the guiding protrusion on the moving contact spring body part has an inclined surface structure on the surface that caters to the housing sleeving direction.

[0065] Embodiment 3 The other contents of this embodiment are the same as those of Embodiment 1, and the differences are as follows: The guiding protrusion on the moving contact spring body part is a combined connection structure of convex blocks on the moving contact spring body part, such as a riveting structure or a welding structure similar to that of a moving contact / stationary contact, etc.

[0066] Embodiment 4 The other contents of this embodiment are the same as those of Embodiment 1, and the differences are as follows: The overlapping structure of the moving contact spring pin part is a layered overlapping structure of multiple independently formed laminations on the pin base part extended from the moving contact spring body part. These overlapping structures are fixed by riveting or welding, and the top of the outermost lamination forms a guiding folded edge.

[0067] Embodiment 5 The other contents of this embodiment are the same as those of Embodiment 1, and the differences are as follows: The right wing of the moving contact spring pin part is close to the pin base part, the left wing of the moving contact spring pin part is close to the right wing, and the top of the left wing forms a guiding folded edge.

[0068] Embodiment 6 The other contents of this embodiment are the same as those of Embodiment 1, and the differences are as follows: The moving contact pin part is a structure with thickened material of the moving contact piece, that is, the moving contact pin part protrudes directly from the adjacent part of the moving contact body part due to the material thickness relationship, and there is no need to form a laminated structure; The outer edge of the top end of the moving contact pin part is processed by an inclined surface / curved surface structure to form a guiding structure.

[0069] Embodiment 7 Other contents of this embodiment are the same as those of Embodiment 1, the difference is that: Based on design factors such as making way, the moving contact pin part bends and protrudes towards the corresponding inner wall side of the outer shell. The thickness of the moving contact pin part remains unchanged and is basically the same as that of the moving contact body part; The outer edge of the top end of the bent and protruding part of the moving contact pin part is processed by an inclined surface / curved surface structure to form a guiding structure.

[0070] Of course, this embodiment will also lose the technical effects brought by the thickening of the moving contact pin part.

[0071] Embodiment 8 Other contents of this embodiment are the same as those of Embodiment 1, the difference is that: Remove the guiding protrusion structure on the moving contact body part, and only rely on the guiding folding edge at the top end of the moving contact pin part to guide the outer shell during the sleeving process. Of course, this embodiment will also lose the supplementary function of the guiding protrusion for guiding the guiding folding edge.

[0072] Embodiment 9 Other contents of this embodiment are the same as those of Embodiment 1, the difference is that: The limiting retaining buckles outside the contact side baffle of the coil bobbin are arranged on the left and right sides in the transverse width direction of the armature, in the non-front-end area, similar to the limiting buckle technology disclosed in Chinese Patent Document Publication No. CN 118969563 A.

[0073] The above embodiments are only used to illustrate the present invention, rather than limiting it.

[0074] Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: they can still modify the above embodiments, or perform equivalent replacements on some of the technical features. For example, the design structure of the electromagnetic relay adopts a push rod type to adapt to the cooperation structure of the moving contact component and the outer shell of the present invention (of course, due to the change of the electromagnetic relay design structure, the reed near the outer shell is no longer limited to the moving contact component, and may be a static contact component, which is particularly prominent in the push rod type electromagnetic relay); and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the present invention..

Claims

1. A relay reed and housing matching structure, comprising a reed and a housing (3) assembled on a base; The arrangement position of the reed on the base is close to the corresponding inner wall of the housing (3); When the housing (3) is assembled on the base, the mounting direction (A) is along the extension direction of the pin portion of the spring assembled on the base; Features: The pin portion of the reed protrudes from the adjacent reed body portion and is close to the corresponding inner wall of the housing (3) on which it is mounted; Corresponding to the installation direction (A) of the housing (3), the spring sheet has a guiding structure for guiding the housing (3) during the installation process to prevent the housing (3) from abutting against the top end of the pin portion.

2. The relay reed and housing matching structure according to claim 1, characterized in that: The guide structure is formed at the top outer edge of the pin portion, and is a curved surface structure / inclined surface structure at the top outer edge of the pin portion that caters to the mounting direction (A) of the housing (3).

3. The relay reed and housing matching structure according to claim 2, characterized in that: The pin portion is a multi-layered laminated structure, comprising a pin base portion extending from a spring body portion, and a plurality of laminated sheets laminated on a side of the pin base portion adjacent to the mounted housing (3); The guide structure is a guide fold of a curved surface structure / inclined surface structure formed at the top of the lamination away from the pin base portion.

4. The relay reed and housing matching structure according to claim 3, characterized in that: The pin portion is a three-layer stacked structure, comprising a pin base portion extending from the spring body portion, a left wing extending from the left side of the pin base portion in the horizontal width direction and matching the pin base portion after stacking, and a right wing extending from the right side of the pin base portion in the horizontal width direction and matching the pin base portion after stacking; The left wing is overlapped on the surface of the pin base part / the right wing facing the housing (3) in a folded structure folded back to the right in the horizontal width direction; The right wing piece is overlapped on the surface of the pin base part / the left wing piece facing the housing (3) in an overlapping structure folded back to the left in the horizontal width direction.

5. The relay reed and housing matching structure according to any one of claims 2 to 4, characterized in that: The spring body portion above the pin portion has a protrusion and a guide protrusion adjacent to a corresponding inner wall of the housing (3) to which it is mounted; The guide protrusion has a curved surface structure / inclined surface structure that conforms to the installation direction (A) of the housing (3).

6. The relay reed and housing matching structure according to claim 5, characterized in that: The maximum protrusion height of the guide protrusion from the first side surface of the reed body is greater than or equal to the minimum distance between the guide surface of the guide structure at the top edge of the pin portion and the first side surface of the reed body, and less than the maximum distance between the guide surface of the guide structure at the top edge of the pin portion and the first side surface of the reed body; The first side surface of the reed body is the surface of the reed body on which the guide protrusion is provided.

7. The relay reed and housing matching structure according to claim 5 or 6, characterized in that: The guide protrusion is a stamped convex structure integrally formed on the reed body.

8. A snap-on electromagnetic relay, comprising a coil frame (1), a movable spring assembly (2) and a housing (3) mounted on the coil frame (1); Features: The dynamic spring assembly (2) and the housing (3) have a matching structure as claimed in any one of claims 1 to 7.

9. The snap-on electromagnetic relay according to claim 8, characterized in that: The coil frame (1) is an I-shaped structure, and has a base side baffle (12) and a contact side baffle (13) located at both ends of the winding drum (11); An L-shaped yoke (4) is mounted on the base side baffle (12), and the blade of the yoke (4) extends to the contact side baffle (13); An armature (5) located outside the contact side baffle (13) is assembled at the blade position of the yoke (4) through the movable spring assembly (2); The movable spring pin portion (22) of the movable spring assembly (2) is assembled on the base side baffle (12) at the position of the yoke (4); The housing (3) is mounted on the coil frame (1) in a direction from the contact side baffle (13) to the base side baffle (12).

10. The snap-on electromagnetic relay according to claim 9, characterized in that: The movable spring assembly (2) is laterally mounted on the coil frame (1) in a direction corresponding to the mounting direction of the yoke (4) on the base side baffle (12); Correspondingly, the base side baffle (12) has a movable spring side mounting groove (16) with a U-shaped open structure; During the process of installing the movable spring assembly (2) on the coil frame (1), the movable spring pin portion (22) is installed on the base side baffle (12) through the opening of the movable spring side installation groove (16); The inner wall of the housing (3) has a raised rubber retaining rib (31) corresponding to the side mounting groove (16) of the dynamic spring; During the installation process of the housing (3), the rubber retaining rib (31) is adjacent to the movable spring assembly (2) at the yoke (4); The housing (3) is fitted in place so that the rubber retaining rib (31) cooperates with the movable spring side mounting groove (16) to form a limited assembly of the movable spring assembly (2) on the base side baffle (12).

11. The snap-on electromagnetic relay according to claim 10, characterized in that: On the surface of the movable spring side groove (16) that meets the movable spring pin portion (22), at least one glue flow groove corresponding to the thickness direction of the base side baffle (12) is formed in a concave-convex structure, and when the movable spring pin portion (22) is assembled in place in the movable spring side groove (16), the corresponding surface of the movable spring pin portion (22) matches the meeting surface of the movable spring side groove (16); And / or, the surface of the rubber-blocking rib (31) that meets the movable spring pin portion (22) is formed with at least one rubber flow groove corresponding to the mounting direction (A) in a concave-convex structure, and when the rubber-blocking rib (31) is assembled in place in the movable spring side mounting groove (16), the surface of the rubber-blocking rib (31) that meets the movable spring pin portion (22) cooperates with the corresponding surface of the movable spring pin portion (22).

12. The snap-on electromagnetic relay according to claim 10, characterized in that: The contact side baffle (13) of the coil frame (1) has a limit stopper (15) formed protruding on both sides of the armature (5) and / or the movable spring assembly (2) in the transverse width direction to constrain and limit the outward turning movement; The two groups of limit stop buckles (15) on the contact side baffle (13) form a threading channel for lateral assembly of the dynamic spring assembly (2); When the movable spring assembly (2) is laterally assembled on the coil frame (1), the movable spring assembly (2) and / or the armature (5) pass through a fitting passage formed by the limit stop buckle (15) on the contact side baffle (13).

13. The snap-on electromagnetic relay according to claim 12, characterized in that: The limit stop buckle (15) on the contact side baffle (13) is formed at a corresponding corner of the armature (5) at one end away from the yoke (4); The limit stop buckle (15) comprises a front stop column (151) located at the end of the armature (5), and a top folded edge (152) folded back on the front stop column (151) to the top side of the armature (5), the top folded edge (152) and the front stop column (151) being matched in an L-shaped structure.

14. The snap-on electromagnetic relay according to claim 13, characterized in that: The limit stop buckle (15) further comprises a side folded edge (153) folded back on the front stop column (151) to the left / right side edge of the armature (5), and the side folded edge (153) cooperates with the front stop column (151) in an L-shaped structure.

15. The snap-on electromagnetic relay according to claim 14, characterized in that: The side folded edge (153) of the limit stop buckle (15) is folded downward at the corresponding edge of the top folded edge (152), the side folded edge (153) and the top folded edge (152) are matched in an L-shaped structure, and the bottom edge of the side folded edge (153) is matched with the contact side baffle (13) at a distance.

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