CN112542352A

CN112542352A - Connecting structure of movable spring and yoke

Info

Publication number: CN112542352A
Application number: CN202011196197.2A
Authority: CN
Inventors: 张灵
Original assignee: Ningbo Gaoling Electronic Co ltd
Current assignee: Ningbo Gaoling Electronic Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-03-23

Abstract

The invention discloses a connecting structure of a movable spring and a yoke, which comprises the yoke and a movable reed assembly, wherein the outer side wall of the yoke is provided with a connecting plate, the connecting plate is provided with a first connecting hole, one end of the movable reed assembly is provided with a second connecting hole, a connecting bolt penetrates through the first connecting hole, the bolt head of the connecting bolt penetrates through the second connecting hole, and one end of the connecting bolt penetrating out of the second connecting hole is provided with a fastening nut; a first elastic element is arranged between the mounting part and the connecting plate and positioned outside the connecting bolt; the yoke upper end still is equipped with the adjustment mechanism of the adsorption distance between adjustment movable reed subassembly and the coil pack, and the outside at relay housing is worn to establish by adjustment mechanism's upper end. According to the connecting structure of the movable spring and the yoke, the position of the movable spring assembly can be adjusted in multiple modes, so that the most reasonable position between the movable spring assembly and the coil assembly is achieved, and the on-off precision of a relay is ensured.

Description

Connecting structure of movable spring and yoke

Technical Field

The invention relates to the technical field of relays, in particular to a connecting structure of a movable spring and a yoke.

Background

The clapper type relay in the prior art generally comprises a base, a coil, an iron core, an armature, a yoke, a movable spring, a static spring and other components, wherein the coil is arranged on the base, the iron core is inserted into the coil, and the yoke is matched with the coil; the movable spring includes movable spring leaf and movable contact, the movable spring leaf is bent to form L shape, one side of the movable spring leaf is fixed to the yoke, the other side of the movable spring leaf is fixed to the yoke, the armature is matched to the knife edge of the yoke, and when the coil works, the armature is attracted to the iron core to drive the movable contact of the movable spring to contact with the static contact of the static spring. The movable spring leaf and the yoke of the clapper relay with the structure are connected in a riveting mode generally, a riveting hole is formed in the position, corresponding to the other side, used for being fixed with the yoke, of the movable spring leaf, a riveting convex bud is arranged at the corresponding position of the yoke, the movable spring leaf and the yoke are riveted and fixed in a riveting mode by inserting the convex bud of the yoke into the riveting hole of the movable spring leaf and inserting the convex bud into the riveting hole of the movable spring leaf, and a tool is required to be inserted below a riveted part (the yoke) for supporting during riveting, so that the production efficiency is low, and due to the fact that the distance between the yoke part and a coil is small, the coil is easily scratched when the tool is inserted, the relay is broken.

In the existing electromagnetic relay structure, the height position of the movable spring assembly cannot be adjusted after the movable spring assembly and the yoke are riveted and fixed, namely, the upper position and the lower position of the movable spring assembly cannot be finely adjusted under the condition that the coil adsorption force is uncertain or an error exists, so that the movable contact and the corresponding stationary contact cannot be accurately contacted and matched, namely, the precision of the on-off of the relay cannot be ensured.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the defect of the prior art is overcome, a connection structure of the movable spring and the yoke iron is provided, the movable spring component can be adjusted in the vertical position in multiple modes, and therefore the most reasonable position between the movable spring component and the coil component is achieved, and the accuracy of on-off of the relay is guaranteed.

The technical scheme adopted by the invention is as follows: the connecting structure of the movable spring and the yoke comprises the yoke and a movable reed assembly, wherein a connecting plate is arranged on the outer side wall of the yoke, a first connecting hole is formed in the connecting plate, an installing part corresponding to the connecting plate is arranged at one end, away from a movable contact, of the movable reed assembly, a second connecting hole is formed in the installing part, a connecting bolt is arranged in the first connecting hole in a sliding mode, a bolt head of the connecting bolt penetrates through the second connecting hole, and a fastening nut is arranged at one end, penetrating out of the second connecting hole, of the connecting bolt; a first elastic element is arranged between the mounting part and the connecting plate, and the first elastic element is sleeved outside the connecting bolt; the upper end of the yoke iron is bent towards the position where the coil assembly is located to form an installation plate, and an adjusting mechanism for adjusting the adsorption distance between the movable reed assembly and the coil assembly is arranged on the installation plate; the upper end of the adjusting mechanism penetrates through a containing cavity which is preset on the relay shell, so that the position of the movable reed component can be directly operated and adjusted from the outside of the relay.

After the structure is adopted, compared with the prior art, the novel relay movable contact spring has the following advantages:

the movable spring leaf assembly is connected with the yoke iron through the corresponding mounting part, the connecting plate and the connecting bolt, the connecting bolt is slidably arranged in the connecting holes in the mounting part and the connecting plate in a penetrating manner, the elastic element is sleeved outside the connecting bolt, two ends of the elastic element are respectively abutted between the mounting part and the connecting plate, and the movable spring leaf assembly is stably connected with the yoke iron through the elasticity of the elastic element; and can realize the compression or the flexible of elastic element through the position of the fastening nut of the end of screwing the connecting bolt in this structure, thus realize the adjustment of the movable spring leaf assembly height position, the precision of the make-and-break of the relay, and still set up an adjustment mechanism in the upper end of the yoke in this structure, the upper end of this adjustment mechanism is worn out and is established on the relay casing, after setting up like this, after the relay assembly is accomplished, still can realize the adjustment of the movable spring leaf assembly position through corresponding adjustment mechanism, namely, adjust the make-and-break precision between movable contact and the corresponding stationary contact, moreover, the steam generator is simple in structure, and it is more convenient to adjust.

Furthermore, the adjusting mechanism comprises an adjusting bolt, a screw rod of the adjusting bolt is spirally arranged on the mounting plate in a penetrating manner, and the outer end part of the screw rod of the adjusting bolt abuts against the upper end surface of the movable reed component; and a second elastic element is arranged between the bolt head of the adjusting bolt and the upper end surface of the mounting plate and penetrates through the outer part of the adjusting bolt. In the specific structure, the upper height and the lower height of the adjusting bolt are adjusted in a spiral mode, so that the deformation degree of the movable reed component can be realized, the adsorption movement distance between the movable reed component and the coil component can be adjusted, and the on-off precision of the relay can be finally adjusted; and corresponding elastic elements are further arranged in the structure, so that the up-and-down position movement of the adjusting bolt has a buffering effect, and the position adjustment is more fine and accurate.

As an improvement, the side wall of the yoke is provided with a T-shaped communication hole for allowing one end, far away from the moving contact, of the movable spring assembly to pass through, two sides of the movable spring assembly in the width direction are respectively provided with a limiting protrusion, two side walls of the T-shaped communication hole are provided with a limiting sliding groove, and the limiting protrusion is in sliding fit in the limiting sliding groove. In this improvement mechanism, can pass the upper end of the horizontally along T type intercommunicating pore of movable spring subassembly during the equipment, when reaching the position of settlement, down remove the movable spring subassembly, until corresponding spacing protruding cooperation in spacing spout, realize the location of final position, then the fixed of the last mounting panel of complete movable spring subassembly tip and yoke, this structure can be fixed a position length direction, the width direction of movable spring subassembly, guarantees its and the position accuracy after the yoke installation.

The movable spring component comprises a movable spring main body and an armature, one end of the movable spring main body is bent and stacked to form a contact riveting block with a double-layer structure, and the movable contact is riveted on the contact riveting block; the other end of the movable spring main body is bent and stacked to form a mounting part with a double-layer structure, and one end of the mounting part, which is close to the middle position of the movable spring main body, is riveted and fixed with the armature; the second connecting hole is formed in the other end of the mounting portion.

And the armature is close to one end of the moving contact and is provided with a positioning slot, and the lower end of the moving spring main body is provided with a positioning plug board matched with the positioning slot. The improved mechanism is used for limiting the positions of the movable spring main body and the armature, is not prone to deflection after riveting, does not need to be provided with too many riveting points between the armature and the movable spring main body, only needs to be provided with a first riveting point, and then can be matched with the limiting mechanism to realize stable riveting and fixing, and the improved mechanism is simple in structure, convenient to install and stable in positioning.

Preferably, the positioning insertion plate and the movable spring main body are of an integrated punch forming structure. The positioning insertion plate in the structure is formed by integral stamping and bending, is convenient to process, has high structural strength, and cannot waste excessive materials.

And the contact riveting block is fixedly riveted with the contact riveting block through a moving contact. The reinforcing sheet structure further enhances the riveting strength of the movable contact, and the service life is prolonged.

Drawings

Fig. 1 is a schematic structural view of a connecting structure of a dynamic spring and a yoke according to the present invention.

Fig. 2 is a sectional view showing the yoke according to the present invention.

Fig. 3 is a partial view of the portion a in fig. 2.

Figure 4 is a top view of the movable spring assembly of the present invention.

Fig. 5 is a plan view of the movable spring main body in the present invention. (corresponding to the state of the folding plate not folded)

Figure 6 is a cross-sectional view of a movable spring assembly of the present invention.

Fig. 7 is a view showing an applied state of a connecting structure of a movable spring and a yoke in the present invention.

Wherein, 01-coil component, 02-movable reed component, 03-regulating mechanism;

1-a base, 2-a yoke, 2.1-T-shaped communication holes, 2.2-a limiting sliding groove, 2.3-a through hole, 2.4-a first slot, 3-a normally open static contact, 4-a normally closed static contact, 5-a movable contact, 6-a connecting plate, 6.1-a first connecting hole, 7-a mounting part, 7.1-a second connecting hole, 8-a connecting bolt, 9-a fastening nut, 10-a first elastic element, 11-a mounting plate, 11.1-a threaded hole, 12-an adjusting bolt, 13-a second elastic element, 14-a limiting bulge, 15-a movable spring main body, 16-an armature, 16.1-a positioning slot, 17-a contact riveting block, 18-a positioning insertion plate, 19-a reinforcing plate, 20-an iron core, 21-a coil rack and 21.1-a second slot, 22-coil, 23-fastening screw, 24-elastic insulation sheet, 25-first folding plate, and 26-second folding plate.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

In the description of the present invention, it should be noted that the terms "outer side wall", "outer portion", "upper end face", "both side walls", "lower end face", "upper surface", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. It should also be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "coupled" are to be interpreted broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the present invention provides a relay, which comprises a yoke 2 and a movable spring assembly 02,

a connecting plate 6 is arranged on the outer side wall of the yoke 2, a first connecting hole 6.1 is arranged on the connecting plate 6, a mounting part 7 corresponding to the connecting plate 6 is arranged at one end, away from the moving contact 5, of the moving reed component 02, a second connecting hole 7.1 is arranged on the mounting part 7, a connecting bolt 8 is arranged in the first connecting hole 6.1 in a sliding manner, a bolt head of the connecting bolt 8 is arranged in the second connecting hole 7.1 in a penetrating manner, and a fastening nut 9 is arranged at one end, extending out of the second connecting hole 7.1, of the connecting bolt 8; a first elastic element 10 is arranged between the mounting portion 7 and the connecting plate 6, and the first elastic element 10 is sleeved outside the connecting bolt 8, where the first elastic element 10 is preferably a cylindrical spring, but may be other elastic elements such as a rubber bellows, an elastic gasket, and the like in other embodiments. In addition, the upper end of the yoke 2 is bent towards the position of the coil assembly 01 to form a mounting plate 11, and the mounting plate 11 is provided with an adjusting mechanism for adjusting the adsorption distance between the movable reed assembly 02 and the coil assembly 01; the upper end of the adjusting mechanism 03 penetrates through a containing cavity preset on the relay shell to realize the direct operation and adjustment of the position of the movable reed component 02 from the outside of the relay. In the mechanism, the position of the movable spring assembly 02 can be adjusted by adjusting the position of the fastening nut 9, and more importantly, the adjusting mechanism can be directly operated on the outer shell after the whole relay is assembled, so that the position of the movable spring assembly 01 can be adjusted, the adjustment is more diversified, and the on-off of the relay is more accurate.

Specifically, in this embodiment, the adjusting mechanism 03 includes an adjusting bolt 12, a screw of the adjusting bolt 12 is spirally inserted into the mounting plate 11, specifically, a corresponding threaded hole 11.1 is formed in the mounting plate 11, and the adjusting bolt 12 is fitted in the threaded hole 11.1; the outer end part of the screw of the adjusting bolt 12 is abutted against the upper end surface of the movable spring assembly 02; a second elastic element 13 is arranged between the bolt head of the adjusting bolt 12 and the upper end face of the mounting plate 11, and the second elastic element 13 penetrates through the outside of the adjusting bolt 12. Likewise, the second elastic element 13 is here preferably a cylindrical spring, but may of course in other embodiments be other forms of elastic elements, such as rubber bellows, elastic gaskets, etc.

As shown in fig. 2, 3 and 4, a T-shaped communication hole 2.1 is formed in the side wall of the yoke 2 for allowing one end of the movable spring component 02 far from the movable contact 5 to pass through, limiting protrusions 14 are respectively arranged on two sides of the movable spring component 02 in the width direction, limiting sliding grooves 2.2 are formed in two side walls of the T-shaped communication hole 2.1, and the limiting protrusions 14 are in sliding fit in the limiting sliding grooves 2.2. Specifically, when the installation, pass movable spring subassembly 01 along the upper end of horizontal direction along T type intercommunicating pore 2.1, when stretching into the position of settlement, down remove movable spring subassembly 01, until corresponding spacing protruding 14 cooperation in spacing spout 2.2, realized promptly like this to movable spring subassembly 01 length direction and width direction spacing, then install movable spring subassembly 01 tip and yoke 2's upper end fixedly, effectively guarantee its and yoke 2 installation after the position degree of accuracy, and can not take place the skew of position.

As shown in fig. 4, 5, and 6, the movable spring assembly 02 includes a movable spring main body 15 and an armature 16, one end of the movable spring main body 15 is bent and stacked to form a contact riveting block 17 with a double-layer structure, the double-layer structure effectively increases the structural strength, and the double-layer structure is formed by directly bending and folding a single-layer movable spring material. Correspondingly, the moving contact 5 is riveted on the contact riveting block 17; the other end of the movable spring main body 15 is bent and stacked to form a mounting part 7 with a double-layer structure, and similarly, the mounting part 7 with the double-layer structure is formed by directly bending, stacking and bonding a single-layer movable spring sheet material. One end of the mounting part 7 close to the middle position of the movable spring main body 15 is riveted and fixed with the armature 16; a second connection hole 7.1 is provided at the other end of the mounting portion 7.

The structure of the limiting protrusion 14 in the structure is formed by punching and bending the movable spring main body 15 into a whole, specifically, two first pressing plates 25 are punched on a plate of the movable spring main body 15, as shown in fig. 5, and then the two first pressing plates 25 are folded outwards by 180 degrees towards the width direction of the movable spring main body 15, so that the limiting protrusion 14 is formed, namely, the limiting protrusion 14 is arranged in parallel with the upper surface of the movable spring main body 15. Of course, in other embodiments, the limiting protrusions 14 may also be formed by other methods, for example, two limiting protrusions 14 are welded to both sides of the movable spring body 15 in the width direction by welding, which is complicated in process and high in cost.

In the structure, in order to ensure the stability of the riveted movable spring main body 15 and the armature 16, the movable spring main body is not easy to deflect in the using process, so that one end of the armature 16 close to the movable contact 5 is provided with a positioning slot 16.1, and the lower end of the movable spring main body 15 is provided with a positioning plug board 18 matched with the positioning slot 16.1. In this embodiment, the positioning insertion plate 18 and the movable spring main body 15 are preferably formed by an integral press molding. Specifically, referring to fig. 5, a second folding plate 26 is stamped and formed at one end of the movable spring main body 15 close to the movable contact 5, and then the second folding plate 26 is bent downward by 90 degrees to form the positioning insertion plate 18. Of course, in other embodiments, the processing of the positioning insertion plate 18 is not limited to this manner, and a welding manner may be adopted to weld a positioning insertion plate 18 at a corresponding position at the lower end of the movable spring main body 15, but this manner is complicated in process, high in processing cost, and difficult to ensure the strength of the welding mechanism.

In this mechanism, a reinforcing piece 19 is further provided in the middle of the double-layer structure of the contact-riveting block 4, and the reinforcing piece 19 and the contact-riveting block 17 are riveted and fixed by the movable contact 14.

As shown in fig. 7, which is a schematic view of the connection structure of the moving spring and the yoke of the present invention applied to a corresponding relay structure, the relay includes a base 1, a coil assembly 01, a normally open stationary contact 3, and a normally closed stationary contact 4, in addition to the connection structure of the moving spring and the yoke; the moving contact 5 is arranged at the other end of the moving reed component 02, the moving contact 5 is located between the normally open static contact 3 and the normally closed static contact 4, the moving reed component 02 can move downwards or upwards reset through the energization and the outage of the coil component 01, correspondingly, the moving contact 5 is in contact with the normally closed static contact 4 when moving downwards, and the moving contact 5 is in contact with the normally open static contact 3 when the outage upwards resets.

The coil assembly 01 comprises an iron core 20, a coil frame 21 and a coil 22, wherein the coil 22 is wound outside the coil frame 21, and the coil frame 21 is sleeved outside the iron core 20; the lower extreme of yoke 2 is equipped with the through-hole 2.3 that is used for supplying the lower extreme of iron core 20 to join in marriage, and the lower extreme of base 1 and the position that the through-hole 2.3 corresponds are equipped with fastening screw 23, and the screw rod portion of fastening screw 23 passes base 1 spiral and joins in marriage the lower extreme at iron core 20, realizes the removable and convenient dismouting of coil pack 01 and base 1 through fastening screw 23.

The lower extreme of yoke 2 near coil pack 01 one side is equipped with first slot 2.4, and the upper end of coil former 21 near yoke 2 one side is equipped with second slot 21.1, is equipped with elastic insulation piece 24 between yoke 2 and coil pack 01, and the upper and lower both ends of elastic insulation piece 24 cartridge cooperation respectively in second slot 21.1 and first slot 2.4. This elastic insulation piece 24 can play certain insulating effect, can also play the function of preventing coil pack 01 from rotating, improves the stability after coil pack 01 connects.

The foregoing has described preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary, and various changes made within the scope of the independent claims of the present invention are within the scope of the present invention.

Claims

1. A connection structure of movable spring and yoke, includes yoke (2) and movable reed subassembly (02), its characterized in that: a connecting plate (6) is arranged on the outer side wall of the yoke (2), a first connecting hole (6.1) is formed in the connecting plate (6), an installation part (7) corresponding to the connecting plate (6) is arranged at one end, away from the moving contact (5), of the movable spring leaf component (02), a second connecting hole (7.1) is formed in the installation part (7), a connecting bolt (8) is arranged in the first connecting hole (6.1) in a sliding mode, a bolt head of the connecting bolt (8) penetrates through the second connecting hole (7.1), and a fastening nut (9) is arranged at one end, penetrating out of the second connecting hole (7.1), of the connecting bolt (8); a first elastic element (10) is arranged between the mounting part (7) and the connecting plate (6), and the first elastic element (10) is sleeved outside the connecting bolt (8); the upper end of the yoke (2) is bent towards the position of the coil assembly (01) to form a mounting plate (11), and an adjusting mechanism for adjusting the adsorption distance between the movable reed assembly (02) and the coil assembly (01) is arranged on the mounting plate (11); the upper end of the adjusting mechanism (03) penetrates out of a containing cavity which is preset on the relay shell, so that the position of the movable reed component (02) can be directly operated and adjusted from the outside of the relay.

2. The connecting structure of a dynamic spring and a yoke according to claim 1, wherein: the adjusting mechanism (03) comprises an adjusting bolt (12), a screw rod of the adjusting bolt (12) is spirally arranged on the mounting plate (11) in a penetrating manner, and the outer end part of the screw rod of the adjusting bolt (12) abuts against the upper end surface of the movable reed component (02); and a second elastic element (13) is arranged between the bolt head of the adjusting bolt (12) and the upper end face of the mounting plate (11), and the second elastic element (13) penetrates through the outer part of the adjusting bolt (12).

3. The connecting structure of a dynamic spring and a yoke according to claim 1, wherein: the side wall of the yoke (2) is provided with a T-shaped communicating hole (2.1) for allowing one end, far away from the moving contact (5), of the moving reed component (02) to penetrate through, two sides of the moving reed component (02) in the width direction are respectively provided with a limiting protrusion (14), two side walls of the T-shaped communicating hole (2.1) are provided with limiting sliding grooves (2.2), and the limiting protrusion (14) is in sliding fit in the limiting sliding grooves (2.2).

4. The connecting structure of a dynamic spring and a yoke according to claim 1, wherein: the movable spring assembly (02) comprises a movable spring main body (15) and an armature (16), one end of the movable spring main body (15) is bent and stacked to form a contact riveting block (17) with a double-layer structure, and the movable contact (5) is riveted on the contact riveting block (17); the other end of the movable spring main body (15) is bent and stacked to form a mounting part (7) with a double-layer structure, and one end, close to the middle position of the movable spring main body (15), of the mounting part (7) is fixedly riveted with the armature (16); the second connecting hole (7.1) is formed in the other end of the mounting portion (7).

5. The connecting structure of a dynamic spring and a yoke as claimed in claim 4, wherein: one end of the armature iron (16) close to the moving contact (5) is provided with a positioning slot (16.1), and the lower end of the moving spring main body (15) is provided with a positioning plug board (18) matched with the positioning slot (16.1).

6. The connecting structure of a dynamic spring and a yoke as claimed in claim 5, wherein: the positioning insertion plate (18) and the movable spring main body (15) are of an integrated punch forming structure.

7. The connecting structure of a dynamic spring and a yoke as claimed in claim 4, wherein: and a reinforcing sheet (19) is further arranged in the middle of the double-layer structure of the contact riveting block (4), and the reinforcing sheet (19) and the contact riveting block (17) are riveted and fixed through a movable contact (14).