Static spring and coil rack assembly structure and clapper type relay

Abstract

The utility model relates to the technical field of relays, and discloses a static spring and coil rack assembly structure and a clapper type relay, which comprises a coil rack and a static spring plate. The coil rack is provided with a static reed clamping groove for inserting the static reed; the whole static spring clamping groove or at least one section of the static spring clamping groove in the length direction is provided with a first static spring inserting groove with the height larger than the thickness of the static spring piece. The area, corresponding to the first static spring inserting groove, of the static reed is provided with at least one protruding structure which is formed in a protruding mode and enables the static reed to form interference fit in the first static spring inserting groove. When the static reed is inserted into the static reed clamping groove in the coil frame, the protruding structure on the static reed is in interference fit with the first static reed inserting groove. According to the utility model, the insertion difficulty of the static reed on the coil rack is reduced, plastic scraps are reduced, and the assembly precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, and specifically, to an assembly structure of a static contact spring and a coil bobbin and a clapper-type relay. Background Art

[0002] The clapper-type relay mainly consists of a magnetic circuit part, a moving contact spring assembly, a static contact spring assembly, etc. The magnetic circuit part mainly consists of a coil bobbin and a coil, an iron core, a yoke iron, an armature, etc. assembled on the coil bobbin. Among them, the coil bobbin is of an I-shaped structure, having an integrally formed winding cylinder, a base side baffle at one end of the winding cylinder, and a contact side baffle at the other end of the winding cylinder. The armature is butt-assembled at the knife edge of the yoke iron in a buckling manner via the L-shaped moving contact spring piece of the moving contact spring assembly, and extends to the outside of the contact side baffle and above the pole shoe of the iron core. The moving contact spring piece of the moving contact spring assembly extends along the top surface of the armature, so that the moving contact extends to the contact area of the contact side baffle, and forms a cooperation with the static contact of the static contact spring assembly in the up-down direction in the contact area.

[0003] Among them, the static contact spring piece of the static contact spring assembly is inserted into the static contact spring slot at the edge of the contact side baffle of the coil bobbin. During the insertion process of the static contact spring piece, a certain pre-pressure needs to be maintained to ensure the stability of the contact gap after the static contact spring piece is assembled in place, and the static contact spring piece will not fall off the coil bobbin. Therefore, an interference fit structure needs to be formed between the static contact spring piece and the coil bobbin.

[0004] However, all along, in order to achieve the interference fit between the static contact spring piece and the coil bobbin, the static contact spring piece and the coil bobbin are in a large-area interference fit, that is, the height of the static contact spring slot on the coil bobbin is basically equal to the thickness of the static contact spring piece, and the two side surfaces of the static contact spring piece inserted into the static contact spring slot are basically in surface contact with the corresponding wall surfaces of the static contact spring slot. Such an interference fit structure, on the one hand, will increase the insertion difficulty between the static contact spring piece and the coil bobbin, and a sufficiently large insertion force is required to push the static contact spring piece for insertion; on the other hand, during the insertion process, since one side edge in the width direction of the static contact spring piece is used as the insertion direction, the first inserted edge of the static contact spring piece forms contact with the two side walls of the static contact spring slot, and during the continuous insertion process, the first inserted edge corner of the static contact spring piece causes obvious scraping on the two side walls of the static contact spring slot, which is easy to generate plastic waste chips, and the generated plastic waste chips will affect the use performance of the finished relay; on the third hand, due to the inevitable process errors in the manufacturing process of the static contact spring piece and the coil bobbin, it is difficult to ensure that the assembly contact surface forms an absolutely flat fit in a large-area interference fit, so it is easy to cause the tightness degree and the actual contact points when the static contact spring piece and the coil bobbin are fitted to be uncontrollable, and there is a large scatter in the contact gap after the static contact spring piece is assembled in place, affecting the assembly accuracy of the finished relay. Summary of the Utility Model

[0005] The technical object of the present utility model is to provide an assembly structure of a static reed and a coil bobbin, which is conducive to reducing the insertion difficulty of the static reed on the coil bobbin, reducing the generation of plastic waste chips, and improving the assembly accuracy, in view of the particularity of the above-mentioned clapper relay and the deficiencies of the existing assembly technology between the static reed and the coil bobbin, as well as a clapper relay including the assembly structure.

[0006] The first technical solution adopted by the present utility model is as follows:

[0007] An assembly structure of a static reed and a coil bobbin includes a coil bobbin and a static reed;

[0008] The coil bobbin has a static reed slot for inserting the static reed;

[0009] The whole or at least one section of the static reed slot in the length direction has a first static reed insertion slot with a height greater than the thickness of the static reed;

[0010] The area of the static reed corresponding to the first static reed insertion slot has at least one convex structure formed by protrusion, which can form an interference fit between the static reed and the first static reed insertion slot;

[0011] When the static reed is inserted into the static reed slot on the coil bobbin, an interference fit is formed between the convex structure on the static reed and the first static reed insertion slot.

[0012] The above technical measures, in view of the particularity of the above-mentioned clapper relay, by setting a convex structure on the static reed that can form an interference fit with the first static reed insertion slot of the static reed slot, when the static reed forms an interference fit with the first static reed insertion slot of the static reed slot, the contact area between the static reed and the first static reed insertion slot can be reduced. On the one hand, the friction generated during insertion can be reduced, making it easier for the static reed to be inserted into the static reed slot, which is conducive to reducing the insertion difficulty; on the other hand, the contact area where the static reed scrapes the slot wall of the static reed slot can be effectively reduced, thereby effectively reducing the plastic waste chips generated during the insertion process, which is conducive to reducing the adverse effects of plastic waste chips on the clapper relay; on the third hand, the limit reference can be controlled on the convex structure, and the matching dimensions are more stable, which is conducive to improving the assembly accuracy and further ensuring the stability of the contact gap.

[0013] Further, the static reed is inserted into the static reed slot of the coil bobbin with one side edge in the width direction as the insertion direction.

[0014] Further, the convex structure of the static reed is formed at the middle part of the static reed in the width direction.

[0015] The above technical measure forms the convex structure at the middle part of the static reed in the width direction, which can effectively reduce the generation of plastic waste while meeting the installation stability; if the forming position of the convex structure is close to one side edge of the static reed that is inserted first in the insertion direction, compared with the convex structure located in the middle, the generated plastic waste increases; if the forming position of the convex structure is close to the other side edge of the static reed in the insertion direction, the installation stability is poor.

[0016] Furthermore, the convex structure of the static reed is a convex bud formed by stamping;

[0017] The top of the convex bud is a flat-top structure, and the contour edges and corners of the convex bud are rounded arc structures.

[0018] In the above technical measure, the convex structure of the static reed is a convex bud formed by stamping, and its forming structure is simple and easy to form. It can also flexibly adjust the position of the convex bud to be formed on the static reed according to design requirements to meet different specification requirements; the top of the convex bud is a flat-top structure, and the contour edges and corners of the convex bud are rounded arc structures, which is beneficial to the smooth insertion of the static reed and at the same time helps to reduce plastic waste.

[0019] Furthermore, the coil bobbin is of an I-shaped structure, having an integrally formed winding cylinder, a base side baffle at one end of the winding cylinder, and a contact side baffle at the other end of the winding cylinder;

[0020] The static reed slot on the coil bobbin is formed as an in concave structure at one side edge of the contact side baffle;

[0021] The first static reed insertion slot on the coil bobbin is formed on the horizontal section of the static reed slot corresponding to the contact side baffle.

[0022] Furthermore, the first static reed insertion slot on the coil bobbin has a relief slot for mating with the convex structure of the static reed;

[0023] When the static reed is inserted into the first static reed insertion slot of the coil bobbin, the convex structure of the static reed forms an interference fit at the relief slot of the first static reed insertion slot.

[0024] The above technical measure can provide the gap required for the interference fit between the convex structure and the first static reed insertion slot by setting a relief slot in the first static reed insertion slot, making the forming of the convex structure simpler and easier to operate; at the same time, the relief slot can limit the convex structure, which is beneficial to improving the assembly accuracy and further ensuring the stability of the contact gap.

[0025] The second technical solution adopted by the present utility model is as follows:

[0026] An assembly structure of a static reed and a coil bobbin, comprising a coil bobbin and a static reed;

[0027] The coil holder has a static reed slot for inserting a static reed;

[0028] The whole or at least a section of the static reed slot in the length direction has a first static reed insertion slot with a height greater than the thickness of the static reed;

[0029] And in the first static reed insertion slot, there is at least one convex structure formed by protrusion, which can make the static reed form an interference fit in the first static reed insertion slot;

[0030] When the static reed is inserted into the static reed slot on the coil holder, an interference fit is formed between the convex structure in the first static reed insertion slot and the static reed.

[0031] In view of the particularity of the above-mentioned clapper relay, the above technical measures are to set a convex structure capable of forming an interference fit with the static reed in the first static reed insertion slot of the static reed slot, so that when the static reed forms an interference fit with the first static reed insertion slot of the static reed slot, the contact area between the static reed and the first static reed insertion slot can be reduced. On the one hand, the friction generated during insertion can be reduced, making it easier for the static reed to be inserted into the static reed slot, which is beneficial to reducing the insertion difficulty; on the other hand, the contact area where the static reed scrapes the slot wall of the static reed slot can be effectively reduced, thus effectively reducing the plastic waste generated during the insertion process, which is beneficial to reducing the adverse effects of plastic waste on the clapper relay; on the third hand, the limiting reference can be controlled on the convex structure, and the matching dimensions are more stable, which is beneficial to improving the assembly accuracy and further ensuring the stability of the contact gap.

[0032] Further, the static reed is inserted into the static reed slot on the coil holder with one side edge in the width direction as the insertion direction.

[0033] Further, the coil holder is of an I-shaped structure and has an integrally formed winding bobbin, a base side baffle at one end of the winding bobbin, and a contact side baffle at the other end of the winding bobbin;

[0034] The static reed slot on the coil holder is formed in an in - concave structure at one side edge of the contact side baffle;

[0035] The first static reed insertion slot on the coil holder is formed on the horizontal section of the static reed slot corresponding to the contact side baffle.

[0036] The third technical solution adopted by the present utility model is as follows:

[0037] A clapper relay has a coil holder and an iron core, an armature, a moving reed assembly and a static reed assembly assembled on the coil holder;

[0038] The moving spring component has a moving spring piece, a pin section formed at one end in the length direction of the moving spring piece, and a moving contact formed at the other end in the length direction of the moving spring piece;

[0039] The static spring component has a static spring piece, a pin section formed at one end in the length direction of the static spring piece, and a static contact formed at the other end in the length direction of the static spring piece;

[0040] The static spring piece of the static spring component is inserted into the static spring slot of the coil bobbin in the assembly structure as described in the above technical solution 1.

[0041] Applying the assembly structure of the above technical solution 1 to the clapper relay by the above technical measures, on the one hand, it improves the assembly accuracy and assembly efficiency of the clapper relay; on the other hand, it can effectively reduce the contact area where the static spring piece scrapes the wall of the static spring slot, thus effectively reducing the plastic waste generated during the insertion process, which is beneficial to reducing the adverse effects of plastic waste on the clapper relay and improving the overall stability of the clapper relay; on the third hand, the limit reference can be controlled on the convex structure, with more stable matching dimensions, which is beneficial to improving the assembly accuracy and further ensuring the stability of the contact gap.

[0042] Further, the clapper relay also has a moving spring limit component assembled on the coil bobbin and extending to the side of the moving spring piece facing away from the static contact.

[0043] Further, the moving spring limit component has a moving spring limit piece;

[0044] The coil bobbin has a limit slot for inserting the moving spring limit piece, and the whole or at least one section of the limit slot in the length direction has a first limit insertion slot with a height greater than the thickness of the moving spring limit piece;

[0045] The area of the moving spring limit piece corresponding to the first limit insertion slot has at least one convex structure formed to enable the moving spring limit piece to form an interference fit in the first limit insertion slot;

[0046] When the moving spring limit piece is inserted into the limit slot on the coil bobbin, an interference fit is formed between the convex structure on the moving spring limit piece and the first limit insertion slot.

[0047] In view of the particularity of the above-mentioned clapper relay, the above technical measure is to set a convex structure on the moving spring limiting piece that can form an interference fit with the first limiting insertion groove of the limiting card slot, so that when the moving spring limiting piece is in interference fit with the first limiting insertion groove of the limiting card slot, the contact area between the moving spring limiting piece and the limiting card slot can be reduced. On the one hand, the frictional force generated during insertion can be reduced, making it easier for the moving spring limiting piece to be inserted into the limiting card slot, which is beneficial to reducing the insertion difficulty. On the other hand, the contact area where the moving spring limiting piece scrapes the wall of the limiting card slot can be effectively reduced, thereby effectively reducing the plastic waste generated during the insertion process, which is beneficial to reducing the adverse effects of plastic waste on the clapper relay. On the third hand, the limiting reference can be controlled on the convex structure, and the matching dimensions are more stable, which is beneficial to improving the assembly accuracy.

[0048] Further, the moving spring limiting component has a moving spring limiting piece;

[0049] The coil bobbin has a limiting card slot for inserting the moving spring limiting piece;

[0050] The whole or at least a section of the limiting card slot in the length direction has a first limiting insertion groove with a height greater than the thickness of the moving spring limiting piece;

[0051] And in the first limiting insertion groove, there is at least one convex structure formed to enable the moving spring limiting piece to form an interference fit in the first limiting insertion groove;

[0052] When the moving spring limiting piece is inserted into the limiting card slot on the coil bobbin, an interference fit is formed between the convex structure in the first limiting insertion groove and the moving spring limiting piece.

[0053] In view of the particularity of the above-mentioned clapper relay, the above technical measure is to set a convex structure in the first limiting insertion groove of the limiting card slot that can form an interference fit with the moving spring limiting piece, so that when the moving spring limiting piece is in interference fit with the first limiting insertion groove of the limiting card slot, the contact area between the moving spring limiting piece and the limiting card slot can be reduced. On the one hand, the frictional force generated during insertion can be reduced, making it easier for the moving spring limiting piece to be inserted into the limiting card slot, which is beneficial to reducing the insertion difficulty. On the other hand, the contact area where the moving spring limiting piece scrapes the wall of the limiting card slot can be effectively reduced, thereby effectively reducing the plastic waste generated during the insertion process, which is beneficial to reducing the adverse effects of plastic waste on the clapper relay. On the third hand, the limiting reference can be controlled on the convex structure, and the matching dimensions are more stable, which is beneficial to improving the assembly accuracy.

[0054] Further, the limiting card slot on the coil bobbin is formed in an in - concave structure at one edge of the contact side baffle;

[0055] The first limiting insertion slot on the coil holder is formed on the horizontal section of the limiting card slot corresponding to the contact side baffle.

[0056] Further, the moving spring limiting piece is inserted into the limiting card slot of the coil holder with one side edge in the width direction as the insertion direction;

[0057] In the first limiting insertion slot of the coil holder, there are limiting ribs protruding to accommodate the insertion direction of the moving spring limiting piece;

[0058] Correspondingly, at the edge of the insertion direction of the moving spring limiting piece, there is a limiting notch for cooperating with the limiting rib;

[0059] When the moving spring limiting piece is inserted into the limiting card slot of the coil holder with an interference fit structure, the limiting notch of the moving spring limiting piece is engaged with the limiting rib in the limiting card slot.

[0060] The above technical measures are through setting limiting ribs protruding to accommodate the insertion direction of the moving spring limiting piece in the first limiting insertion slot, and setting a limiting notch for cooperating with the limiting rib at the edge of the insertion direction of the moving spring limiting piece. When the moving spring limiting piece is in interference fit with the first limiting insertion slot, the limiting notch and the limiting rib are engaged with each other, which can limit the displacement of the moving spring limiting piece in the length direction, realize the positioning of the moving spring limiting piece, avoid the need to set the moving spring limiting piece as an L-shaped structure for positioning, effectively reduce the material cost, and at the same time reduce the insertion surface of the moving spring limiting piece and the coil holder, effectively reducing the generated plastic waste chips.

[0061] Further, the moving spring limiting piece is of a straight-shaped structure.

[0062] In the above technical measures, the moving spring limiting piece is of a straight-shaped structure, which can reduce the material used while not affecting its function, effectively reducing the material cost.

[0063] The technical solution four adopted by the present utility model is as follows:

[0064] A clapper-type relay has a coil holder and an iron core, an armature, a moving spring assembly and a static spring assembly assembled on the coil holder;

[0065] The moving spring assembly has a moving spring piece, a pin section formed at one end in the length direction of the moving spring piece, and a moving contact formed at the other end in the length direction of the moving spring piece;

[0066] The static spring assembly has a static spring piece, a pin section formed at one end in the length direction of the static spring piece, and a static contact formed at the other end in the length direction of the static spring piece;

[0067] The static spring piece of the static spring assembly is inserted into the static spring card slot of the coil holder with the assembly structure as in the above technical solution two.

[0068] The above technical measures apply the assembly structure of the second technical solution as above to the clapper relay. On the one hand, the assembly accuracy and assembly efficiency of the clapper relay are improved; on the other hand, the contact area where the static reed scrapes the groove wall of the static reed slot can be effectively reduced, thereby effectively reducing the plastic waste generated during the insertion process, which is beneficial to reducing the adverse effects of plastic waste on the clapper relay and improving the overall stability of the clapper relay; on the third hand, the limit reference can be controlled on the convex structure, and the mating dimensions are more stable, which is beneficial to improving the assembly accuracy and further ensuring the stability of the contact gap.

[0069] One or more technical solutions provided by the present utility model have at least the following technical effects or advantages:

[0070] In view of the particularity of the above-mentioned clapper relay, the present utility model provides a convex structure on the static reed that can form an interference fit with the first static reed insertion slot of the static reed slot, or a convex structure that can form an interference fit with the static reed is provided in the first static reed insertion slot of the static reed slot. When the static reed forms an interference fit with the first static reed insertion slot of the static reed slot, the contact area between the static reed and the first static reed insertion slot can be reduced. On the one hand, the frictional force generated during insertion can be reduced, making it easier for the static reed to be inserted into the static reed slot, which is beneficial to reducing the insertion difficulty; on the other hand, the contact area where the static reed scrapes the groove wall of the static reed slot can be effectively reduced, thereby effectively reducing the plastic waste generated during the insertion process, which is beneficial to reducing the adverse effects of plastic waste on the clapper relay; on the third hand, the limit reference can be controlled on the convex structure, and the mating dimensions are more stable, which is beneficial to improving the assembly accuracy and further ensuring the stability of the contact gap. Description of the Drawings

[0071] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model and constitute a part of the present utility model, but do not limit the embodiments of the present utility model;

[0072] Figure 1 is a schematic structural diagram of the static reed in the present utility model;

[0073] Figure 2 is Figure 1 the top view of the static reed in

[0074] Figure 3 is a schematic assembly structure diagram of the static reed assembly, coil holder, moving reed assembly and moving reed limiting piece in an embodiment of the present utility model;

[0075] Figure 4 is Figure 3 the enlarged view of part A in

[0076] Figure 5 is Figure 3Enlarged view at B in the [device];

[0077] Figure 6 It is a schematic structural view of the moving spring limiting piece in the utility model;

[0078] Figure 7 It is a schematic structural view of the limiting rib on the coil bobbin in the utility model;

[0079] Figure 8 It is a schematic assembly structural view of the static spring assembly, coil bobbin, and moving spring assembly in another embodiment of the utility model;

[0080] Figure 9 It is a schematic structural view of the clapper relay in the utility model;

[0081] Among them, 1 - static spring piece; 2 - convex bud; 3 - coil bobbin; 4 - static spring slot; 5 - relief slot; 6 - moving spring limiting piece; 7 - limiting slot; 8 - limiting rib; 9 - limiting notch; 10 - static spring assembly; 11 - iron core; 12 - moving spring assembly; 13 - armature; 14 - housing; 15 - yoke; 16 - coil; 17 - moving spring limiting assembly;

[0082] D1 - Length direction of the moving spring limiting piece. Detailed implementation manners

[0083] In order to more clearly understand the above - mentioned objects, features, and advantages of the present utility model, the present utility model will be further described in detail below in conjunction with the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

[0084] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described within the scope here. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0085] Embodiment 1

[0086] Referring to Figures 1 - 5 , this embodiment provides a static spring and coil bobbin assembly structure, including a coil bobbin 3 and a static spring piece 1;

[0087] The coil bobbin 3 has a static spring slot 4 for inserting the static spring piece 1;

[0088] The whole or at least a section of the static spring slot 4 in the length direction has a first static spring insertion slot with a height greater than the thickness of the static spring piece 1;

[0089] Among them, the bobbin 3 has an I-shaped structure, with an integrally formed winding cylinder, a base side baffle at one end of the winding cylinder, and a contact side baffle at the other end of the winding cylinder (based on Figure 3 which, the base side baffle is at the lower end of the winding cylinder, and the contact side baffle is at the upper end of the winding cylinder, that is, with the base side baffle as the lower and the contact side baffle as the upper); the static spring slot 4 on the bobbin 3 is formed in an in-concave structure at one side edge of the contact side baffle;

[0090] The first static spring insertion slot on the bobbin 3 is formed on the horizontal section of the static spring slot 4 corresponding to the contact side baffle.

[0091] The static spring slot 4 is composed of a vertical section and a horizontal section to form an L-shaped structure. The length direction of the static spring slot 4 is the direction from one end to the other end of the static spring slot 4. The whole of the static spring slot 4 in the length direction is a through slot structure from one end to the other end, and at least one section is the vertical section, horizontal section, a section on the vertical section, or a section on the horizontal section of the static spring slot 4.

[0092] The thickness of the static spring piece 1 is the material thickness; the height of the first static spring insertion slot is the vertical distance between the opposite side wall surfaces forming the first static spring insertion slot.

[0093] The vertical direction refers to the direction from the contact side baffle to the base side baffle, and the horizontal direction refers to the direction perpendicular to the vertical direction. The vertical section and horizontal section of the aforementioned static spring slot 4 are respectively the parts of the static spring slot 4 corresponding to the vertical direction and horizontal direction.

[0094] The area of the static spring piece 1 corresponding to the first static spring insertion slot has at least one convex structure formed by protrusion, which can make the static spring piece 1 form an interference fit in the first static spring insertion slot; the convex structure of the static spring piece 1 is formed in the middle of the static spring piece 1 in the width direction; the convex structure of the static spring piece 1 is a convex bud 2 formed by stamping, and the height and quantity of the convex bud 2 can be adjusted according to actual requirements.

[0095] Among them, the convex bud 2 can also be separately arranged from the static spring piece 1, but this method will have a decrease in stability and accuracy compared with the integrally formed stamping convex bud.

[0096] In order to enable the static spring piece 1 to be smoothly inserted into the static spring slot 4, the top of the convex bud 2 is a flat top structure, and the contour edges and corners of the convex bud 2 are rounded arc structures, which is beneficial to reducing plastic waste chips. At the same time, the limit reference can be controlled on the convex bud 2, the matching dimensions are more stable, which is beneficial to improving the assembly accuracy and further ensuring the stability of the contact gap.

[0097] Among them, the convex bud 2 can also be an oval structure, or a rectangular structure or a square structure formed along the width direction of the static spring piece 1, etc.

[0098] When the static reed 1 is inserted into the static reed slot 4 on the bobbin 3, an interference fit is formed between the protruding structure on the static reed 1 and the first static reed insertion slot.

[0099] One side edge of the static reed 1 in the width direction is used as the insertion direction, and it is inserted into the static reed slot 4 of the bobbin 3. The length direction of the static reed 1 is the direction from the static contact to the pin section, and the width direction of the static reed 1 is the direction transverse to the length direction of the static reed 1, that is, the width direction of the static reed 1 is perpendicular to the length direction and the thickness direction of the static reed 1.

[0100] The first static reed insertion slot on the bobbin 3 has a relief groove 5 that matches the protruding structure of the static reed 1; when the static reed 1 is inserted into the first static reed insertion slot of the bobbin 3, the protruding structure of the static reed 1 forms an interference fit at the relief groove 5 of the first static reed insertion slot, which is convenient for the forming of the protruding structure. At the same time, the relief groove 5 can limit the protruding structure to a certain extent, which is beneficial to improving the assembly accuracy.

[0101] Based on the above assembly structure, this embodiment provides a clapper relay. Refer to Figure 9 As shown, it has a bobbin 3, and a coil 16, an iron core 11, an armature 13, a moving reed assembly 12, a static reed assembly 10, and a moving reed limiting assembly 17 assembled on the bobbin 3.

[0102] The contact side baffle of the bobbin 3 is inside the housing 14, and the base side baffle is at the opening of the housing 14.

[0103] Specifically, refer to Figure 3 As shown, the base side baffle of the bobbin 3 is provided with a pin through - mounting structure for the moving reed assembly 12 and the static reed assembly 10, and a yoke iron assembly groove for the yoke iron 15. The moving reed assembly 12 has a moving reed and a pin section formed at one end of the moving reed in the length direction, and a moving contact formed at the other end of the moving reed in the length direction; the static reed assembly 10 has a static reed 1 and a pin section formed at one end of the static reed 1 in the length direction, and a static contact formed at the other end of the static reed 1 in the length direction; the static reed 1 of the static reed assembly 10 is inserted into the static reed slot 4 of the bobbin 3 with the above - mentioned assembly structure, which is beneficial to improving the assembly accuracy and assembly efficiency of the clapper relay, reducing the plastic waste generated during the insertion process, and improving the overall stability of the clapper relay.

[0104] A moving reed limiting component 17 extending to the side of the moving reed facing away from the static contact is assembled on the bobbin 3. Specifically, the moving reed limiting component 17 extends to the area corresponding to the moving contact. The moving reed limiting component 17 has a moving reed limiting piece 6 with a linear structure. The bobbin 3 has a limiting card slot 7 for inserting the moving reed limiting piece 6. The whole or at least one section of the limiting card slot 7 in the length direction has a first limiting insertion slot with a height greater than the thickness of the moving reed limiting piece 6. The area of the moving reed limiting piece 6 corresponding to the first limiting insertion slot has at least one convex structure formed by molding, which can make the moving reed limiting piece 6 form an interference fit in the first limiting insertion slot.

[0105] Among them, the limiting card slot 7 on the bobbin 3 is formed in an in - concave structure at one edge of the contact side baffle.

[0106] The first limiting insertion slot on the bobbin 3 is formed on the horizontal section of the limiting card slot 7 corresponding to the contact side baffle.

[0107] There is a bracket integrally formed with the contact side baffle and having a convex structure on the outside of the contact side baffle. The limiting card slot 7 is formed inside the bracket. The position of the limiting card slot 7 is farther from the contact side baffle than the position of the static reed card slot 4.

[0108] When the moving reed limiting piece 6 is inserted into the limiting card slot 7 on the bobbin 3, an interference fit is formed between the convex structure on the moving reed limiting piece 6 and the first limiting insertion slot.

[0109] Among them, the limiting card slot 7 is composed of a vertical section and a horizontal section to form an L - shaped structure. The length direction of the limiting card slot 7 is the direction from one end to the other end of the limiting card slot 7. The whole of the limiting card slot 7 in the length direction is a through - slot structure from one end to the other end, and at least one section is the vertical section, horizontal section, a section on the vertical section or a section on the horizontal section of the limiting card slot 7.

[0110] The thickness of the moving reed limiting piece 6 is the material thickness; the height of the first limiting insertion slot is the vertical distance between the opposite side wall surfaces constituting the first limiting insertion slot.

[0111] The vertical section and the horizontal section of the aforementioned limiting card slot 7 are respectively the parts of the limiting card slot 7 corresponding to the vertical direction and the horizontal direction.

[0112] Refer to Figure 6 , with one edge of the width direction of the moving reed limiting piece 6 as the insertion direction, the moving reed limiting piece 6 is inserted into the limiting card slot 7 of the bobbin 3; the width direction of the moving reed limiting piece 6 is the direction transverse to the length direction D1 of the moving reed limiting piece.

[0113] Refer to Figures 6 - 7 , in the first limiting insertion slot of the bobbin 3, there is a limiting rib 8 protruding to conform to the insertion direction of the moving reed limiting piece 6.

[0114] Correspondingly, at the edge of the insertion direction of the moving spring limiting piece 6, there is a limiting notch 9 that cooperates with the limiting rib 8.

[0115] When the moving spring limiting piece 6 is inserted into the limiting slot 7 of the coil bobbin 3 with an interference fit structure, the limiting notch 9 of the moving spring limiting piece 6 is engaged with the limiting rib 8 in the limiting slot 7.

[0116] The static spring piece 1 has an L-shaped structure. When the static spring piece 1 is inserted into the static spring slot 4 along the insertion direction, there are a vertical section of the static spring piece located in the vertical section of the static spring slot 4, a horizontal section of the static spring piece located in the horizontal section of the static spring slot 4, and a bending transition section connecting the vertical section and the horizontal section of the static spring piece. The convex bud 2 on the horizontal section of the static spring piece forms an interference fit with the first static spring insertion slot located in the horizontal section of the static spring slot 4; the horizontal section of the static spring piece corresponds to two surfaces (i.e., the top surface and the bottom surface arranged with the convex bud 2) of the opposite side walls forming the static spring slot 4. The bottom surface of the horizontal section of the static spring piece forms a butt joint fit with one side wall surface of the static spring slot 4, and the top surface of the horizontal section of the static spring piece forms a clearance fit with the static spring slot 4. Due to the interference fit between the convex bud 2 and the first static spring insertion slot located in the horizontal section of the static spring slot 4, the bottom surface of the horizontal section of the static spring piece forms an interference fit with the static spring slot 4; the vertical section of the static spring piece corresponds to two surfaces of the opposite side walls forming the static spring slot 4, and forms an interference fit relationship of surface contact fit with the static spring slot 4; the bending transition section corresponds to two surfaces at the opposite bends forming the static spring slot 4, and forms a clearance fit or the bottom surface of the bending transition section forms a butt joint fit with the corresponding bend of the static spring slot 4, and the top surface of the bending transition section forms a clearance fit with the corresponding bend of the static spring slot 4; through the interference fit formed by the convex bud 2 and the first static spring insertion slot, the contact area between the static spring piece 1 and the static spring slot 4 can be reduced, effectively reducing the contact area where the static spring piece 1 scrapes the slot wall of the static spring slot 4, which is beneficial to reducing the plastic waste generated during the insertion process.

[0117] Embodiment 2

[0118] Other contents of this embodiment are the same as those of Embodiment 1, and the differences are as follows:

[0119] The whole or at least one section of the static spring slot in the length direction has a first static spring insertion slot with a height greater than the thickness of the static spring piece;

[0120] And in the first static spring insertion slot, there is at least one convex structure formed by protrusion that can make the static spring piece form an interference fit in the first static spring insertion slot;

[0121] When the static spring piece is inserted into the static spring slot on the coil bobbin, an interference fit is formed between the convex structure in the first static spring insertion slot and the static spring piece.

[0122] This embodiment can achieve the technical purpose of the present utility model to a certain extent. However, setting the convex structure formed by stamping in the first static spring insertion groove has a relatively high manufacturing difficulty for demolding.

[0123] Embodiment 3

[0124] Other contents of this embodiment are the same as those of Embodiment 1, except that:

[0125] The whole or at least one section of the limiting card slot in the length direction has a first limiting insertion groove with a height greater than the thickness of the moving spring limiting piece;

[0126] And in the first limiting insertion groove, there is at least one convex structure formed by convex molding, which can make the moving spring limiting piece form an interference fit in the first limiting insertion groove;

[0127] When the moving spring limiting piece is inserted into the limiting card slot on the coil holder, an interference fit is formed between the convex structure in the first limiting insertion groove and the moving spring limiting piece.

[0128] This embodiment can achieve the technical purpose of the present utility model to a certain extent. However, setting the convex structure formed by stamping in the first limiting insertion groove has a relatively high manufacturing difficulty for demolding.

[0129] Embodiment 4

[0130] Other contents of this embodiment are the same as those of Embodiment 1, except that:

[0131] Referring to Figure 8 , this embodiment uses the static spring piece 1 with an L-shaped structure to replace the moving spring limiting piece. By setting two static spring pieces 1, a conversion structure is formed, which can achieve the technical purpose of the present utility model to a certain extent.

[0132] Although the preferred embodiments of the present utility model have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present utility model.

[0133] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these modifications and variations.

Claims

1. A static spring and coil frame assembly structure, comprising a coil frame (3) and a static spring sheet (1); The coil frame (3) has a static spring slot (4) for inserting the static spring sheet (1); Features: The entire or at least a section of the static spring retaining slot (4) in the length direction has a first static spring insertion slot whose height is greater than the thickness of the static spring sheet (1); The static spring piece (1) has a region corresponding to the first static spring insertion groove, and has at least one protruding structure that is formed so as to enable the static spring piece (1) to form an interference fit in the first static spring insertion groove; When the static spring sheet (1) is inserted into the static spring clamping groove (4) on the coil frame (3), an interference fit is formed between the protruding structure on the static spring sheet (1) and the first static spring insertion groove.

2. The static spring and coil frame assembly structure according to claim 1, characterized in that: The static spring sheet (1) is inserted into the static spring slot (4) of the coil frame (3) with one side edge in the width direction as the insertion direction.

3. The static spring and coil frame assembly structure according to claim 2, characterized in that: The convex structure of the static spring piece (1) is formed at the middle part of the static spring piece (1) in the width direction.

4. The static spring and coil frame assembly structure according to any one of claims 1 to 3, characterized in that: The protruding structure of the static spring sheet (1) is a stamped convex bract (2); The top of the convex bract (2) is a flat-top structure, and the contour edges and corners of the convex bract (2) are rounded arc-shaped structures.

5. The static spring and coil frame assembly structure according to claim 1, characterized in that: The coil frame (3) is an I-shaped structure, having an integrally formed winding drum, a base side baffle at one end of the winding drum, and a contact side baffle at the other end of the winding drum; The static spring retaining groove (4) on the coil frame (3) is formed with an inwardly concave structure at one side edge of the contact side baffle; The first static spring insertion slot on the coil frame (3) is formed on a horizontal section of the static spring clamping slot (4) corresponding to the contact side baffle.

6. The static spring and coil frame assembly structure according to claim 1 or 5, characterized in that: The first static spring insertion slot on the coil frame (3) has a clearance slot (5) with a raised structure matching the static spring sheet (1); When the static spring sheet (1) is inserted into the first static spring insertion slot of the coil frame (3), the protruding structure of the static spring sheet (1) forms an interference fit at the clearance slot (5) of the first static spring insertion slot.

7. A static spring and coil frame assembly structure, comprising a coil frame (3) and a static spring sheet (1); The coil frame (3) has a static spring slot (4) for inserting the static spring sheet (1); Features: The entire or at least a section of the static spring retaining slot (4) in the length direction has a first static spring insertion slot whose height is greater than the thickness of the static spring sheet (1); The first static spring insertion groove has at least one protrusion structure formed therein, which enables the static spring sheet (1) to form an interference fit in the first static spring insertion groove; When the static spring piece (1) is inserted into the static spring clamping groove (4) on the coil frame (3), an interference fit is formed between the protruding structure in the first static spring insertion groove and the static spring piece (1).

8. The static spring and coil frame assembly structure according to claim 7, characterized in that: The static spring sheet (1) is inserted into the static spring slot (4) of the coil frame (3) with one side edge in the width direction as the insertion direction.

9. The static spring and coil frame assembly structure according to claim 7, characterized in that: The coil frame (3) is an I-shaped structure, having an integrally formed winding drum, a base side baffle at one end of the winding drum, and a contact side baffle at the other end of the winding drum; The static spring retaining groove (4) on the coil frame (3) is formed with an inwardly concave structure at one side edge of the contact side baffle; The first static spring insertion slot on the coil frame (3) is formed on a horizontal section of the static spring clamping slot (4) corresponding to the contact side baffle.

10. A snap-on relay, comprising a coil frame (3), an iron core (11), an armature (13), a moving spring assembly (12), and a stationary spring assembly (10) mounted on the coil frame (3); The dynamic spring assembly (12) comprises a dynamic spring piece, a lead section formed at one end of the dynamic spring piece in the length direction, and a dynamic contact point formed at the other end of the dynamic spring piece in the length direction; The static spring assembly (10) comprises a static spring piece (1), a lead section formed at one end of the static spring piece (1) in the length direction, and a static contact point formed at the other end of the static spring piece (1) in the length direction; Features: The static spring sheet (1) of the static spring assembly (10) is inserted into the static spring slot (4) of the coil frame (3) using the assembly structure described in any one of claims 1 to 6.

11. The snap-on relay according to claim 10, characterized in that: The snap-on relay also has a moving spring limiting assembly (17) mounted on the coil frame (3) and extending to the side of the moving spring sheet facing away from the static contact.

12. The snap-on relay according to claim 11, characterized in that: The dynamic spring limiting assembly (17) comprises a dynamic spring limiting piece (6); The coil frame (3) has a limit slot (7) for inserting a movable spring limit piece (6), wherein the entire limit slot (7) or at least one section thereof in the length direction has a first limit insertion slot having a height greater than the thickness of the movable spring limit piece (6); The movable spring limiting piece (6) corresponds to the area of ​​the first limiting insertion groove and has at least one protruding structure that enables the movable spring limiting piece (6) to form an interference fit in the first limiting insertion groove; When the movable spring limiting piece (6) is inserted into the limiting slot (7) on the coil frame (3), an interference fit is formed between the protruding structure on the movable spring limiting piece (6) and the first limiting slot.

13. The snap-on relay according to claim 11, characterized in that: The dynamic spring limiting assembly (17) comprises a dynamic spring limiting piece (6); The coil frame (3) has a limiting slot (7) for inserting a movable spring limiting piece (6); The entirety or at least a section of the limit slot (7) in the length direction has a first limit insertion slot whose height is greater than the thickness of the dynamic spring limit piece (6); Furthermore, the first limiting insertion groove has at least one protruding structure that is formed so as to enable the dynamic spring limiting piece (6) to form an interference fit in the first limiting insertion groove; When the movable spring limiting piece (6) is inserted into the limiting slot (7) on the coil frame (3), an interference fit is formed between the protruding structure in the first limiting slot and the movable spring limiting piece (6).

14. The snap-on relay according to claim 12 or 13, characterized in that: The limiting slot (7) on the coil frame (3) is formed with an inwardly concave structure at one side edge of the contact side baffle; The first limiting insertion slot on the coil frame (3) is formed on a horizontal section of the limiting clamping slot (7) corresponding to the contact side baffle.

15. The snap-on relay according to claim 12 or 13, characterized in that: The movable spring limiting piece (6) is inserted into the limiting slot (7) of the coil frame (3) with one side edge in the width direction as the insertion direction; The first limiting insertion groove of the coil frame (3) is provided with a limiting convex rib (8) protruding to meet the insertion direction of the movable spring limiting piece (6); Correspondingly, the edge of the movable spring limiting piece (6) in the insertion direction has a limiting notch (9) that matches the limiting convex rib (8); When the movable spring limiting piece (6) is inserted into the limiting slot (7) of the coil frame (3) with an interference fit structure, the limiting notch (9) of the movable spring limiting piece (6) is engaged with the limiting convex rib (8) in the limiting slot (7).

16. The snap-on relay according to claim 15, characterized in that: The movable spring limiting piece (6) is a straight-line structure.

17. A snap-on relay, comprising a coil frame (3), an iron core (11), an armature (13), a moving spring assembly (12), and a stationary spring assembly (10) mounted on the coil frame (3); The dynamic spring assembly (12) comprises a dynamic spring piece, a lead section formed at one end of the dynamic spring piece in the length direction, and a dynamic contact point formed at the other end of the dynamic spring piece in the length direction; The static spring assembly (10) comprises a static spring piece (1), a lead section formed at one end of the static spring piece (1) in the length direction, and a static contact point formed at the other end of the static spring piece (1) in the length direction; Features: The static spring sheet (1) of the static spring assembly (10) is inserted into the static spring slot (4) of the coil frame (3) using the assembly structure described in any one of claims 7 to 9.

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