Relay easy to assemble

Abstract

The utility model discloses a relay easy to assemble. The relay comprises a base. The base comprises a bottom wall, a first U-shaped side wall and a second U-shaped side wall are arranged on the two sides of the top of the bottom wall respectively, and a first side wall and a second side wall are arranged between the first U-shaped side wall and the second U-shaped side wall; the push rod is assembled to the opening of the bottom wall, the left side and the right side of the push rod are each provided with at least one protruding column, sliding positioning grooves which are concave inwards are formed in the bottom of the bottom wall, the protruding columns are correspondingly and movably installed in the sliding positioning grooves, and installation grooves are formed in the positions, corresponding to the push rod, of the bottom of the bottom wall. The inner side surface of the cover plate is provided with a convex edge corresponding to the convex column; the lower end surface of the convex edge is in contact fit with the upper end surface of the convex column; a shell is arranged on the outer side of the base. The relay is compact in structure and faster and more convenient to assemble, assembly difficulty is reduced, automatic production is facilitated, production efficiency is improved, and the overall structure is more stable after assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a relay that is easy to assemble. Background Art

[0002] The magnetic latching relay is a new type of relay developed in recent years. It is also an automatic switch. Like other electromagnetic relays, it automatically connects and disconnects circuits. However, the difference is that the closed or open state of the magnetic latching relay is not maintained by a continuous current, but by the magnetic force of a permanent magnet. The switching state is triggered by a pulsed electrical signal of a certain width, and the open and closed state of the contacts is maintained by the magnetic force generated by the permanent magnet.

[0003] A magnetic latching relay primarily consists of a base, an armature assembly, a movable spring assembly, a static spring assembly, and a push rod. The push rod has two openings at each end. During assembly, the two openings of the push rod are plugged into the armature assembly's push arm and the end of the movable spring in the movable spring assembly, respectively. Rotating the armature assembly pulls the push rod, which in turn moves the movable spring in the movable spring assembly, causing the controlled circuit to switch on and off. During assembly, the magnetic latching relay is assembled by creating multiple slots on the inner wall of the base and snapping the components into their corresponding slots. Existing base structures are irrationally designed, making assembly of the components inconvenient and lacking support and positioning for specific components. For example, the lack of support and positioning for the push rod makes movement unstable and prone to shaking. Utility Model Content

[0004] In order to solve the problems existing in the above-mentioned background technology, the utility model provides an easy-to-assemble relay with a compact structure, faster and more convenient assembly, reduced assembly difficulty, easy to realize automated production, improved production efficiency, and a more stable overall structure after assembly.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a relay that is easy to assemble, comprising a housing, a base, a coil assembly, an armature assembly, a moving spring assembly, a static spring assembly and a push rod;

[0007] The base includes a bottom wall, a first U-shaped side wall and a second U-shaped side wall are respectively provided on both sides of the top of the bottom wall, a first side wall and a second side wall are respectively provided between the two arms of the first U-shaped side wall and the two arms of the second U-shaped side wall, a first slot for inserting the dynamic spring assembly and a second slot for inserting the static spring assembly are formed on the inner side surface of the first U-shaped side wall, and an opening is provided on the bottom wall for the lead ends of the dynamic spring assembly and the static spring assembly to pass through;

[0008] An accommodating space for installing the coil assembly is formed between the second U-shaped side wall and the bottom wall;

[0009] An accommodating space for installing the armature assembly is formed between the first side wall and the second side wall;

[0010] The push rod is assembled to the opening of the bottom wall, and the openings at the front and rear ends of the push rod are respectively plugged into the push arm of the armature assembly and the end of the dynamic spring piece in the dynamic spring assembly. At least one protrusion is provided on the left and right sides of the push rod, and the bottom of the bottom wall is respectively formed with an inwardly concave sliding positioning groove, and the protrusion is movably installed in the sliding positioning groove;

[0011] A mounting groove is formed at the bottom of the bottom wall corresponding to the push rod, a cover plate is adapted to be mounted in the mounting groove, a convex ridge is provided at the inner side surface of the cover plate corresponding to the protruding column, and the lower end surface of the convex ridge contacts and cooperates with the upper end surface of the protruding column;

[0012] A shell is provided on the outside of the base.

[0013] Furthermore, a plurality of guide pillars are distributed around the mounting groove, a first through hole for the guide pillars to pass through is provided on the cover plate, and a second through hole for the lead ends of the dynamic spring assembly and the static spring assembly to pass through is also provided on the cover plate, and the guide pillars are hot-riveted to the first through holes.

[0014] By cooperating with the guide column and the first through hole, the cover plate can be accurately positioned and installed in the installation groove on the bottom wall of the base. Subsequently, by hot riveting the guide column and the first through hole, the cover plate can be fixed on the bottom wall of the base. The above operation is simple and easy.

[0015] Furthermore, the upper portion of the guide post is a conical structure, and the lower portion of the guide post is a cylindrical structure.

[0016] By setting the guide post structure, the upper part of the guide post is set to a conical structure, which facilitates the first through hole on the cover plate to pass through the guide post quickly downward, and the lower part of the guide post is set to a cylindrical structure, which facilitates the contact between the lower part of the guide post and the inner wall of the first through hole for subsequent hot riveting welding operations.

[0017] Furthermore, the inner surfaces of the first side wall and the second side wall are each provided with a first limiting groove for the side surfaces of the upper yoke and lower yoke extension of the coil assembly to be inserted downward, the inner bottom of the first limiting groove conflicts with the bottom end of the lower yoke extension of the coil assembly, and the top of the first limiting groove expands outward to form a second limiting groove, and the second limiting groove cooperates with the bottom end of the upper yoke extension of the coil assembly for limiting.

[0018] During assembly, first install the coil assembly into the accommodating space formed between the second U-shaped side wall and the bottom wall. During this process, the side surface of the lower yoke extension of the coil assembly is inserted downward into the first limiting groove, and the upper yoke extension is inserted into the second limiting groove. When the outer shell is subsequently installed on the exposed part of the base, the outer shell cooperates with the base to fix the coil assembly, and the upper yoke and the lower yoke are respectively installed in the second limiting groove and the first limiting groove with corresponding stability.

[0019] Furthermore, a chamfered structure expanding outward is formed at the top of the second limiting groove to facilitate the insertion of the protruding parts of the upper yoke and the lower yoke of the coil assembly. A recessed avoidance groove is formed at the upper part of the first limiting groove to avoid components in the armature assembly to prevent interference with the assembly process of the armature assembly.

[0020] Furthermore, the armature injection molded part in the armature assembly is provided with a third through hole running transversely therethrough, first bearing parts are provided at both ends of the third through hole, an armature connecting rod is passed through the third through hole, a fourth through hole is provided at the avoidance groove on the inner surface of the first side wall and the second side wall, a second bearing part is provided at the outer end portion of the fourth through hole, and both ends of the armature connecting rod respectively pass through the corresponding fourth through holes and are fixedly installed in the second bearing part.

[0021] During assembly, the armature assembly is first assembled into the accommodating space formed between the first side wall and the second side wall, and then the third through hole on the armature injection molded part in the armature assembly is aligned with the fourth through hole on the first side wall and the second side wall, and then the armature connecting rod is inserted from one end into the fourth through hole and the third through hole in sequence, thereby realizing the rotational installation of the armature assembly, and the structure of the armature assembly is more stable after installation.

[0022] Furthermore, the upper yoke and the lower yoke of the coil assembly are of an asymmetrical structure, which has a fool-proof function, facilitates and quickly installs, and reduces installation errors.

[0023] Furthermore, the ports of the first slot and the second slot on the inner side surface of the first U-shaped side wall are formed with outward-expanding chamfered structures, which facilitate quick operation to insert the dynamic spring assembly and the static spring assembly into the corresponding first slot and second slot.

[0024] Furthermore, a card slot is formed on the side surface of one side of the push rod, and a third slot and a fourth slot are formed on the outer side of the second side wall for installing an auxiliary dynamic spring assembly and an auxiliary static spring assembly, respectively. The end of the auxiliary dynamic spring piece in the auxiliary dynamic spring assembly is inserted into the card slot on the side surface of the push rod, and an auxiliary contact is provided on the auxiliary dynamic spring piece.

[0025] During assembly, the auxiliary dynamic spring assembly and the auxiliary static spring assembly are first assembled into the third slot and the fourth slot on the outside of the second side wall, and then the end of the auxiliary dynamic spring piece in the auxiliary dynamic spring assembly is inserted into the slot reserved on the side of the push rod. During the movement of the push rod, the auxiliary dynamic spring piece is driven to move, thereby realizing the contact or disconnection of the auxiliary contacts between the auxiliary dynamic spring assembly and the auxiliary static spring assembly. The structural design is ingenious, making the overall structure more compact and having a smaller volume. In addition, the assembly difficulty of the auxiliary dynamic spring assembly and the auxiliary static spring assembly is reduced, which facilitates the implementation of automated production.

[0026] Furthermore, a fifth slot and a sixth slot are symmetrically provided on the left and right sides of the inner side of the shell, and a U-shaped magnetic isolation plate is inserted into each of the fifth slot and the sixth slot, and a magnet is installed in the U-shaped magnetic isolation plate. The two magnets are symmetrically arranged on both sides of the dynamic spring assembly and the static spring assembly, and the outer side surfaces of the two arms of the first U-shaped side wall are provided with a clamping groove for clamping and limiting the magnet.

[0027] Arc-extinguishing magnets are located on both sides of the main contacts of the moving and stationary spring assemblies, quickly extinguishing arcs and extending the relay's service life. During assembly, the housing is fitted over the exposed portion of the base, with the snap-fit ​​slots securing the exposed ends of the magnets to prevent the magnets and U-shaped magnetic barrier from dislodging.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (1) In the present invention, a protruding column is provided on the side of the push rod. During assembly, the protruding column is movably installed in the corresponding sliding positioning groove on the bottom wall of the base, and the protruding column is limited downward to the sliding positioning groove by the ridges on the inner side of the cover plate, without affecting the movement of the protruding column in the sliding positioning groove. Through the above-mentioned structural coordination, on the one hand, a supporting force is provided for the push rod during the assembly process, and the push rod is not easy to fall into the base, which facilitates the subsequent operation of coordinating the installation of the push rod with other components. On the other hand, when the armature assembly rotates to pull the push rod to move, the protruding column slides in the sliding positioning groove, making the movement process of the push rod more stable and without shaking.

[0030] (2) In the present invention, a first limiting groove and a second limiting groove are provided on the first side wall and the second side wall of the base, and the upper yoke and the lower yoke of the coil assembly are respectively limitedly installed in the second limiting groove and the first limiting groove, and an avoidance groove is provided to avoid the components in the armature assembly to prevent interference with the assembly process of the armature assembly.

[0031] (3) In the present invention, the armature connecting rod is passed from one end through the fourth through hole on the first side wall, the third through hole on the armature injection molded part in the armature assembly, and the fourth through hole on the second side wall in sequence, so as to realize the rotational installation of the armature assembly, and the structure of the armature assembly is more stable after installation.

[0032] (4) In the present invention, the upper yoke and the lower yoke of the coil assembly are asymmetrical structures, which have a fool-proof function, facilitate quick installation, and reduce installation errors.

[0033] (5) In the present invention, the auxiliary dynamic spring assembly and the auxiliary static spring assembly are first assembled into the third slot and the fourth slot on the outside of the second side wall, and then the end of the auxiliary dynamic spring piece in the auxiliary dynamic spring assembly is inserted into the slot reserved on the side of the push rod. During the movement of the push rod, the auxiliary dynamic spring piece is driven to move, thereby realizing the contact or disconnection of the auxiliary contacts between the auxiliary dynamic spring assembly and the auxiliary static spring assembly. The structural design is ingenious, making the overall structure more compact and having a smaller volume. In addition, the difficulty of assembling the auxiliary dynamic spring assembly and the auxiliary static spring assembly is reduced, which facilitates the implementation of automated production.

[0034] (6) In the present invention, the overall structure of the product is compact, the assembly is faster and more convenient, the difficulty of assembly is reduced, the automated production is facilitated, the production efficiency is improved, and the overall structure is more stable after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Figure 1 Schematic diagram of the overall structure of the relay in this utility model;

[0037] Figure 2 This is a schematic diagram of the overall structure of the relay after removing the outer shell in the present invention;

[0038] Figure 3 This is a schematic structural diagram of the base in the utility model;

[0039] Figure 4 This is a structural diagram of the base in the present invention from another angle;

[0040] Figure 5 This is a schematic diagram of the structure of the base and the push rod in the utility model;

[0041] Figure 6 This is a schematic diagram of the structure of the coil assembly, armature assembly, dynamic spring assembly and push rod in the utility model;

[0042] Figure 7 This is a structural diagram of the inner side of the cover plate in the present invention;

[0043] Figure 8 This is a schematic structural diagram of the housing in the present invention;

[0044] Among them, the specific drawings are marked as follows:

[0045] Cover plate 1, rib 101, first through hole 102, second through hole 103, push rod 2, protrusion 201, slot 202, coil assembly 3, upper yoke 301, lower yoke 302, armature assembly 4, push arm 401, armature injection molded part 402, third through hole 403, first bearing portion 404, armature connecting rod 405, dynamic spring assembly 5, dynamic spring leaf 501, static spring assembly 6, auxiliary dynamic spring assembly 7, auxiliary dynamic spring leaf 701, auxiliary static spring assembly 8, base 9, bottom wall 901, sliding fixed Positioning slot 902, mounting slot 903, guide column 904, first U-shaped side wall 905, first slot 906, second slot 907, snap-in slot 908, second U-shaped side wall 909, first side wall 910, second side wall 911, first limiting slot 912, avoidance slot 913, second limiting slot 914, fourth through hole 915, second bearing portion 916, third slot 917, fourth slot 918, outer shell 10, fifth slot 1001, U-shaped magnetic isolation plate 1002, magnet 1003. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0047] The embodiment of the present invention provides a relay that is easy to assemble, such as Figure 1-7As shown, it includes a shell 10, a base 9, a coil assembly 3, an armature assembly 4, a dynamic spring assembly 5, a static spring assembly 6 and a push rod 2; the base 9 includes a bottom wall 901, and a first U-shaped side wall 905 and a second U-shaped side wall 909 are respectively provided on both sides of the top of the bottom wall 901, and a first side wall 910 and a second side wall 911 are respectively provided between the two arms of the first U-shaped side wall 905 and the two arms of the second U-shaped side wall 909, and the inner side surface of the first U-shaped side wall 905 is formed with a first slot 906 for inserting the dynamic spring assembly 5 and a second slot 907 for inserting the static spring assembly 6, and an opening is provided on the bottom wall 901 for the lead ends of the dynamic spring assembly 5 and the static spring assembly 6 to pass through; an accommodating space for installing the coil assembly 3 is formed between the second U-shaped side wall 909 and the bottom wall 901, and a hole groove for the lead pins of the coil assembly 3 to pass through is opened on the first side wall 9 10 and the second side wall 911 form an accommodating space for installing the armature assembly 4; the push rod 2 is assembled into the opening of the bottom wall 901, and the openings at the front and rear ends of the push rod 2 are respectively plugged into the push arm 401 in the armature assembly 4 and the end of the dynamic spring piece 501 in the dynamic spring assembly 5, and at least one protruding column 201 is provided on the left and right sides of the push rod 2, and an inwardly recessed sliding positioning groove 902 is formed at the bottom of the bottom wall 901. The protruding column 201 is correspondingly and movably installed in the sliding positioning groove 902. The sliding positioning groove 902 is formed by a protruding rib, and an installation groove 903 is formed at the bottom of the bottom wall 901 corresponding to the push rod 2. The cover plate 1 is adapted to be installed in the installation groove 903, and a convex ridge 101 is provided on the inner side surface of the cover plate 1 corresponding to the protruding column 201, and the lower end surface of the convex ridge 101 contacts and cooperates with the upper end surface of the protruding column 201; the exposed part of the base 9 is covered with a shell 10.

[0048] By setting a protruding post 201 on the side of the push rod 2, during assembly, the protruding post 201 is movably installed in the corresponding sliding positioning groove 902 on the bottom wall 901 of the base 9. After the cover plate 1 is installed in the installation groove 903, the protruding post 201 is limited downward to the sliding positioning groove 902 by the convex ridge 101 on the inner side of the cover plate 1, and the movement of the protruding post 201 in the sliding positioning groove 902 is not affected. Through the above-mentioned structural cooperation, on the one hand, during the assembly process, the push rod 2 is provided with supporting force, and the push rod 2 is not easy to fall into the base 9, which facilitates the subsequent operation of coordinating the installation of the push rod 2 with other components. On the other hand, when the armature assembly 4 rotates to pull the push rod 2 to move, the protruding post 201 slides in the sliding positioning groove 902, so that the movement process of the push rod 2 is more stable and there is no shaking.

[0049] like Figure 5 and Figure 7As shown, a plurality of guide posts 904 are distributed around the mounting groove 903. The cover plate 1 is provided with a first through-hole 102 for the guide posts 904 to pass through. The cover plate 1 is also provided with a second through-hole 103 for the lead ends of the dynamic spring assembly 5 and the static spring assembly 6 to pass through. The guide posts 904 are heat-riveted to the first through-hole 102. The cooperation between the guide posts 904 and the first through-hole 102 facilitates the precise positioning and installation of the cover plate 1 into the mounting groove 903 on the bottom wall 901 of the base 9. Subsequently, the guide posts 904 are heat-riveted to the first through-hole 102 to secure the cover plate 1 to the bottom wall 901 of the base 9. The above operation is simple and easy. The structure of the guide column 904 is set, and the upper part of the guide column 904 is set to a conical structure to facilitate the first through hole 102 on the cover plate 1 to quickly pass through the guide column 904 downward, and the lower part of the guide column 904 is set to a cylindrical structure to facilitate the contact between the lower part of the guide column 904 and the inner wall of the first through hole 102 for subsequent hot riveting welding operations.

[0050] like Figure 3 and Figure 6 As shown, the inner surfaces of the first side wall 910 and the second side wall 911 are both provided with a first limiting groove 912 for the side surfaces of the protruding parts of the upper yoke 301 and the lower yoke 302 of the coil assembly 3 to be inserted downwardly, the inner bottom of the first limiting groove 912 conflicts with the side end of the protruding part of the lower yoke 302 of the coil assembly 3, and the top of the first limiting groove 912 expands outward to form a second limiting groove 914, and the second limiting groove 914 cooperates with the side end of the protruding part of the upper yoke 301 of the coil assembly 3 for limiting. During assembly, the coil assembly 3 is first installed in the accommodation space formed between the second U-shaped side wall 909 and the bottom wall 901. During this process, the side of the protruding portion of the lower yoke 302 of the coil assembly 3 is inserted downward into the first limiting groove 912, and the protruding portion of the upper yoke 301 is inserted into the second limiting groove 914. When the shell 10 is subsequently mounted on the exposed portion of the base 9, the shell 10 cooperates with the base 9 to fix the coil assembly 3 in position, and the upper yoke 301 and the lower yoke 302 are respectively installed in the second limiting groove 914 and the first limiting groove 912 in a corresponding and stable manner. Specifically, the top of the second limiting groove 914 is formed with an outwardly flared chamfered structure to facilitate the insertion of the protruding portions of the upper yoke 301 and the lower yoke 302 of the coil assembly 3. The upper portion of the first limiting groove 912 is formed with a recessed avoidance groove 913 for avoiding the components in the armature assembly 4 to prevent interference with the assembly process of the armature assembly 4.

[0051] like Figure 3 and Figure 6As shown, the armature injection molded part 402 in the armature assembly 4 is provided with a third through hole 403 which passes through horizontally, and first bearing parts 404 are provided at both ends of the third through hole 403, an armature connecting rod 405 is passed through the third through hole 403, a fourth through hole 915 is provided at the avoidance groove 913 on the inner side surfaces of the first side wall 910 and the second side wall 911, and a second bearing part 916 is provided at the outer end portion of the fourth through hole 915, and both ends of the armature connecting rod 405 respectively pass through the corresponding fourth through holes 915 and are fixedly installed in the second bearing part 916. During assembly, the armature assembly 4 is first assembled into the accommodating space formed between the first side wall 910 and the second side wall 911, and then the third through hole 403 on the armature injection molded part 402 in the armature assembly 4 is aligned with the fourth through hole 915 on the first side wall 910 and the second side wall 911, and then the armature connecting rod 405 is inserted from one end into the fourth through hole 915 and the third through hole 403 in sequence, thereby realizing the rotational installation of the armature assembly 4, and the structure of the armature assembly 4 is more stable after installation.

[0052] The upper yoke 301 and the lower yoke 302 of the coil assembly 3 are asymmetrical structures, which have a fool-proof function, facilitate quick installation, and reduce installation errors.

[0053] Among them, the ports of the first slot 906 and the second slot 907 on the inner side of the first U-shaped side wall 905 are formed with outward-expanding chamfered structures, which facilitate quick operation to insert the dynamic spring assembly 5 and the static spring assembly 6 into the corresponding first slot 906 and the second slot 907.

[0054] like Figure 2 、 Figure 4 and Figure 5 As shown, a slot 202 is formed on one side of the push rod 2. A third slot 917 and a fourth slot 918 are formed on the outside of the second side wall 911 for mounting the auxiliary dynamic spring assembly 7 and the auxiliary static spring assembly 8, respectively. The end of the auxiliary dynamic spring piece 701 in the auxiliary dynamic spring assembly 7 is inserted into the slot 202 on the side of the push rod 2. The auxiliary dynamic spring piece 701 is provided with an auxiliary contact. During assembly, the auxiliary dynamic spring assembly 7 and the auxiliary static spring assembly 8 are first assembled into the third slot 917 and the fourth slot 918 on the outside of the second side wall 911. The end of the auxiliary dynamic spring piece 701 in the auxiliary dynamic spring assembly 7 is then inserted into the slot 202 reserved on the side of the push rod 2. As the push rod 2 moves, the auxiliary dynamic spring piece 701 moves, realizing the connection and disconnection of the auxiliary contacts between the auxiliary dynamic spring assembly 7 and the auxiliary static spring assembly 8. This ingenious structural design makes the overall structure more compact and has a smaller size. It also reduces the difficulty of assembling the auxiliary dynamic spring assembly 7 and the auxiliary static spring assembly 8, facilitating the implementation of automated production.

[0055] like Figure 2 、 Figure 3 and Figure 8As shown, the inner side of the housing 10 is symmetrically provided with a fifth slot 1001 and a sixth slot (not shown). U-shaped magnetic shielding sheets 1002 are inserted into each of the fifth and sixth slots. Magnets 1003 are mounted within the U-shaped magnetic shielding sheets 1002. Two magnets 1003 are symmetrically positioned on either side of the movable spring assembly 5 and the static spring assembly 6. The outer sides of the first U-shaped sidewall 905 are provided with engaging grooves 908 for securing the magnets 1003. Magnets 1003 with a magnetic arc extinguishing function are located on either side of the main contacts of the movable spring assembly 5 and the static spring assembly 6, respectively. This allows for rapid arc extinguishing at the contacts, extending the service life of the relay. During assembly, the housing 10 is mounted over the exposed portion of the base 9. The engaging grooves 908 secure the exposed ends of the magnets 1003, preventing the magnets 1003 and the U-shaped magnetic shielding sheets 1002 from disengaging from the slots.

[0056] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A relay that is easy to assemble, characterized in that: It includes a housing, a base, a coil assembly, an armature assembly, a dynamic spring assembly, a static spring assembly and a push rod; The base includes a bottom wall, a first U-shaped side wall and a second U-shaped side wall are respectively provided on both sides of the top of the bottom wall, a first side wall and a second side wall are respectively provided between the two arms of the first U-shaped side wall and the two arms of the second U-shaped side wall, a first slot for inserting the dynamic spring assembly and a second slot for inserting the static spring assembly are formed on the inner side surface of the first U-shaped side wall, and an opening is provided on the bottom wall for the lead ends of the dynamic spring assembly and the static spring assembly to pass through; An accommodating space for installing the coil assembly is formed between the second U-shaped side wall and the bottom wall; An accommodating space for installing the armature assembly is formed between the first side wall and the second side wall; The push rod is assembled to the opening of the bottom wall, and the openings at the front and rear ends of the push rod are respectively plugged into the push arm of the armature assembly and the end of the dynamic spring piece in the dynamic spring assembly. At least one protrusion is provided on the left and right sides of the push rod, and the bottom of the bottom wall is respectively formed with an inwardly concave sliding positioning groove, and the protrusion is movably installed in the sliding positioning groove; A mounting groove is formed at the bottom of the bottom wall corresponding to the push rod, a cover plate is adapted to be mounted in the mounting groove, a convex ridge is provided at the inner side surface of the cover plate corresponding to the protruding column, and the lower end surface of the convex ridge contacts and cooperates with the upper end surface of the protruding column; A shell is provided on the outside of the base.

2. The easy-to-assemble relay according to claim 1, characterized in that There are multiple guide pillars distributed around the mounting groove, and a first through hole for the guide pillars to pass through is provided on the cover plate. A second through hole for the lead ends of the dynamic spring assembly and the static spring assembly to pass through is also provided on the cover plate, and the guide pillars are hot-riveted to the first through holes.

3. The easy-to-assemble relay according to claim 2, characterized in that The upper portion of the guide post is a conical structure, and the lower portion of the guide post is a cylindrical structure.

4. The easy-to-assemble relay according to claim 1, characterized in that The inner surfaces of the first side wall and the second side wall are both provided with a first limiting groove for the side surfaces of the upper yoke and lower yoke extension of the coil assembly to be inserted downward, the bottom of the first limiting groove conflicts with the bottom end of the lower yoke extension of the coil assembly, the top of the first limiting groove expands outward to form a second limiting groove, and the second limiting groove cooperates with the bottom end of the upper yoke extension of the coil assembly for limiting.

5. The easily assembled relay according to claim 4, characterized in that An outward-expanding chamfered structure is formed at the top of the second limiting groove, and a concave avoidance groove is formed at the upper portion of the first limiting groove.

6. The easily assembled relay according to claim 1, characterized in that The armature injection molded part in the armature assembly is provided with a third through hole running horizontally therethrough, and first bearing parts are provided at both ends of the third through hole. An armature connecting rod is passed through the third through hole, and a fourth through hole is opened at the avoidance groove on the inner surface of the first side wall and the second side wall, and a second bearing part is provided at the outer end portion of the fourth through hole, and both ends of the armature connecting rod respectively pass through the corresponding fourth through holes and are fixedly installed in the second bearing part.

7. The easily assembled relay according to claim 1, characterized in that The upper yoke and the lower yoke of the coil assembly are asymmetrical structures.

8. The easily assembled relay according to claim 1, characterized in that The ports of the first slot and the second slot on the inner side surface of the first U-shaped side wall are formed with outwardly expanding chamfered structures.

9. The easily assembled relay according to claim 1, characterized in that A card slot is formed on the side surface of one side of the push rod, and a third slot and a fourth slot are formed on the outer side of the second side wall for installing an auxiliary dynamic spring assembly and an auxiliary static spring assembly respectively. The end of the auxiliary dynamic spring piece in the auxiliary dynamic spring assembly is inserted into the card slot on the side surface of the push rod, and an auxiliary contact is provided on the auxiliary dynamic spring piece.

10. The easily assembled relay according to claim 1, characterized in that A fifth slot and a sixth slot are symmetrically provided on the left and right sides of the inner side of the shell, and a U-shaped magnetic isolation plate is inserted into each of the fifth slot and the sixth slot. A magnet is installed in the U-shaped magnetic isolation plate, and the two magnets are symmetrically arranged on both sides of the dynamic spring assembly and the static spring assembly.

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