Push rod type double-circuit synchronous on-off relay

Abstract

The utility model relates to a push rod type double-circuit synchronous on-off relay, which comprises a base, a magnetic circuit part and a contact part are arranged on the base, the magnetic circuit part comprises an iron core, a coil sleeved on the iron core, a yoke, an armature and a pressure spring, and the contact part comprises a movable reed, a first static reed, a second static reed and a push rod. The push rod is arranged between the movable contact spring and the armature and is respectively connected with the movable contact spring and the armature, the base is provided with a movable space corresponding to the position of the push rod, the movable space is arranged along the width direction of the base, the push rod comprises a connecting part and a movable part, the two sides of the connecting part are respectively connected with the movable contact spring and the armature, and the movable part is arranged along the width direction of the base. And the movable part is positioned below the connecting part. By adopting the technical scheme, the push rod type double-circuit synchronous on-off relay provided by the utility model is provided with the soft flock accommodating groove, so that the influence on the movement of the push rod and the movable contact spring is avoided, the push rod and the movable contact spring are free from blockage and high in smoothness during movement, and meanwhile, the pressure spring is convenient to assemble and good in stability.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, and in particular to a push-rod type dual-channel synchronous switching relay. Background Technology

[0002] Relays, as fundamental control components of electrical systems, are widely used in electromechanical equipment. Existing relays come in various structures, including push-rod relays.

[0003] The working principle of a push rod relay is that after the coil is energized, it generates an electromagnetic attraction to attract the armature, causing the armature to rotate and push against the push rod. In turn, the push rod pushes against the moving spring, so that the moving spring contacts the stationary spring, thereby closing the contacts. Conversely, to open the contacts, the coil current is reduced to a certain value or the power is turned off.

[0004] However, current push rod relays generally have the following problems: 1. The push rod is located between the armature and the moving spring. During assembly and use, the connection between the three is prone to generating a lot of lint due to friction. The lint will fall into the slot at the bottom of the push rod, causing jamming and affecting the service life of the relay. Lint may also be generated at the assembly position between the moving spring and the push rod, which will also affect the movement of the moving spring; 2. The assembly process of the compression spring on the existing push rod relay is relatively complicated and has poor stability. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects of the prior art. This utility model provides a push rod type dual-channel synchronous on / off relay with a lint collection groove to avoid affecting the movement of the push rod and the moving spring, so that the movement is smooth and without jamming. At the same time, the compression spring is easy to assemble and has good stability.

[0006] The technical solution of this utility model: A push-rod type dual-circuit synchronous switching relay includes a base, on which a magnetic circuit part and a contact part are provided. The magnetic circuit part includes an iron core, a coil fitted on the iron core, a yoke, an armature, and a compression spring. The yoke is located between the coil and the armature. The upper half of the armature extends through the yoke to the top of the iron core. The compression spring presses against the armature. The contact part includes a moving spring, a first stationary spring, a second stationary spring, and a push rod. The moving spring is located between the two stationary springs. The push rod is located between the moving spring and the armature and is connected to both the moving spring and the armature. The base has a movable space corresponding to the push rod position, which is arranged along the width direction of the base. The push rod includes a connecting part and a movable part. The two sides of the connecting part are connected to the moving spring and the armature, respectively. The movable part is located below the connecting part and can rotate. Within the active space, a gap is provided between the upper end of the active part and the side wall of the active groove. The lower end of the active part is arc-shaped. The active space has an arc-shaped active groove corresponding to the lower end of the active part. The bottom of the active space has a first recessed receiving groove. The lower end face of the active part is separated from the bottom of the first receiving groove. The moving spring includes a first piece, a second piece, and a third piece. The second piece is U-shaped. The first piece and the third piece are integrally formed at both ends of the second piece. The first piece is vertically upward between two stationary springs. The third piece extends vertically downward to the outside of the base. The base has an installation space corresponding to the position of the moving spring. The installation space has an arc-shaped groove and a second receiving groove located below the arc-shaped groove. The arc-shaped part of the second piece is rotatably disposed in the arc-shaped groove, and the lower end face of the second piece is separated from the second receiving groove.

[0007] Using the above technical solution, the armature rotates under the action of the iron core to drive the push rod to move, thereby driving the moving spring to swing, so that the moving spring contacts the first stationary spring or the second stationary spring. The movable part of the push rod is arc-shaped and the second body of the moving spring is U-shaped. The base is provided with an arc-shaped groove that matches it, so that the structure is stable when the push rod and the moving spring swing. At the same time, a receiving groove is also provided so that the lint generated during the assembly of the push rod and the moving spring can fall into the corresponding receiving groove. The receiving groove is spaced apart from the movable part and the second body, so that the push rod and the moving spring will not jam when they move, and the movement is smooth.

[0008] Further features of this invention: The base has upwardly extending extension plates on its left and right sides, and L-shaped mounting grooves arranged in a mirror image on the two extension plates. The compression spring is arranged in a U-shape, and a first spring piece extending to the other side is provided on one side of the compression spring. The end of the first spring piece is provided with an upwardly extending pressing piece. When the compression spring is assembled on the base, the pressing piece presses against the upper end face of the armature.

[0009] With the above-mentioned further design, the compression spring is easy to assemble and disassemble. The armature is pressed and limited by the pressure plate, and the resistance of the armature can be reduced when the armature rotates. Compared with the prior art, there is no need to open a slot on the armature for the compression spring to extend, and the armature is easier to manufacture.

[0010] A further feature of this invention is that the movable part has a notch to facilitate communication between the first receiving groove and the movable groove when the push rod is installed in the movable space.

[0011] With the above-mentioned further configuration, the lint generated after assembly and operation can fall into the first receiving groove through the notch, avoiding accumulation on the moving part of the push rod and affecting the rotation of the moving part.

[0012] A further improvement of this utility model is as follows: the connecting part is provided with two connecting rods, which are respectively located on both sides of the second stationary spring. The movable spring is provided with two corresponding connecting holes. The end of the connecting rod is provided with a second spring piece arranged in a V shape. The second spring piece passes through the corresponding connecting hole and abuts against the movable spring to realize the connection between the push rod and the movable spring.

[0013] By adopting the above-mentioned further design, the connection structure between the push rod and the moving spring is simple and can be quickly assembled. When the end of the connecting rod passes through the connecting hole, the second spring moves towards each other. After passing through, the spring opens and the end presses against the moving spring. This will not hinder the connection between the push rod and the moving spring, and it will not be easy to detach after connection. Moreover, no other tools are required for assembly.

[0014] A further feature of this invention is that the magnetic circuit portion also includes two coil leads, each with a connecting piece integrally formed at its upper end. The connecting piece can be folded relative to the coil leads, and the two turns of the coil are connected to the connecting piece.

[0015] With the above-mentioned further configuration, the two ends of the coil can be wound around the connecting piece first, and then the connecting piece can be folded relative to the coil lead to facilitate the connection and fixation of the coil.

[0016] A further feature of this invention is that the two extension plates are also provided with fixing grooves, the two sides of the yoke are installed in the corresponding fixing grooves, the upper part of the yoke is provided with two positioning arms, the armature is provided with a corresponding positioning block, and the positioning block abuts against the front side of the positioning arm.

[0017] With the above-mentioned further design, the structure is simple and easy to assemble and disassemble. The yoke can be directly inserted into the fixing slot from top to bottom without affecting the stability of the yoke. At the same time, the yoke can also position the armature. When the armature moves under the action of the iron core, the armature structure is stable through the cooperation of the positioning block and the positioning arm and the setting of the compression spring, and no other structure is needed to install and fix the armature.

[0018] A further feature of this invention is that the first static spring includes a first vertical portion, a second vertical portion, and an inclined portion integrally formed between the two vertical portions.

[0019] With the above-mentioned further configuration, a stationary contact is provided on the first vertical part, and the second vertical part extends downward to the outside of the base. The two vertical parts are connected by an inclined part, which can provide installation space for the moving spring without affecting the contact between the moving spring and the stationary spring. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present utility model;

[0021] Figure 2 This is a cross-sectional view of a specific embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the base according to a specific embodiment of the present utility model;

[0023] Figure 4 This is a partial schematic diagram of the push rod according to a specific embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of a compression spring according to a specific embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the movable spring in a specific embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the first stationary spring in a specific embodiment of the present utility model;

[0027] Figure 8 This is a schematic diagram of the connecting rod and the second spring piece in a specific embodiment of the present invention.

[0028] In the diagram, 1. Base; 11. Movable space; 111. Movable slot; 112. First receiving slot; 12. Installation space; 121. Arc-shaped slot; 122. Second receiving slot; 13. Extension plate; 131. Mounting slot; 132. Fixing slot; 2. Cover; 3. Magnetic circuit section; 31. Iron core; 32. Coil; 33. Yoke; 34. Armature; 35. Compression spring; 351. First spring; 352. Pressing plate; 36. Coil lead; 361 4. Connecting piece; 4. Contact part; 41. Moving spring; 411. Moving contact; 412. First piece; 413. Second piece; 414. Third piece; 415. Connecting hole; 42. First stationary spring; 421. First vertical part; 422. Second vertical part; 423. Inclined part; 43. Second stationary spring; 44. Push rod; 441. Connecting part; 442. Moving part; 443. Notch; 444. Connecting rod; 445. Second spring. Detailed Implementation

[0029] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] It should be noted that all directional indicators (such as up, down, forward, backward, etc.) in the description of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] like Figure 1-8As shown, a push-rod type dual-circuit synchronous switching relay includes a base 1, which is covered by a housing 2. The housing 2 may be transparent. The base 1 has a magnetic circuit part 3 and a contact part 4. The magnetic circuit part 3 includes an iron core 31, a coil 32 mounted on the iron core 31, a yoke 33, an armature 34, and a compression spring 35. The yoke 33 is located between the coil 32 and the armature 34. The upper half of the armature 34 extends through the yoke 33 to above the iron core 31. The compression spring 35 presses against the armature 34. The contact part 4 includes a moving spring 41, a first stationary spring 42, a second stationary spring 43, and a push rod 44. The moving spring 41 is located between the two stationary springs and has two moving contacts 411. Each of the two stationary springs has a... Two stationary contacts are provided. The push rod 44 is located between the movable spring 41 and the armature 34, and is connected to the movable spring 41 and the armature 34 respectively. A movable space 11 is provided on the base 1 corresponding to the position of the push rod 44. The movable space 11 is arranged along the width direction of the base 1. The push rod 44 includes a connecting part 441 and a movable part 442. The two sides of the connecting part 441 are connected to the movable spring 41 and the armature 34 respectively. The movable part 442 is located below the connecting part 441 and is rotatably disposed within the movable space 11. A gap is provided between the upper end of the movable part 442 and the side wall of the movable groove 111. The lower end of the movable part 442 is arc-shaped. An arc-shaped movable groove 111 is provided on the movable space 11 to accommodate the lower end of the movable part 442. The bottom of the space 11 is provided with a downwardly recessed first receiving groove 112. The lower end face of the movable part 442 is separated from the bottom of the first receiving groove 112. The movable spring 41 includes a first piece 412, a second piece 413, and a third piece 414. The second piece 413 is U-shaped. The first piece 412 and the third piece 414 are integrally formed at both ends of the second piece 413. The first piece 412 is vertically upward between two stationary springs. The third piece 414 extends vertically downward to the outside of the base 1. The base 1 is provided with an installation space 12 corresponding to the position of the movable spring 41. The installation space 12 is provided with an arc-shaped groove 121 and a second receiving groove 122 located below the arc-shaped groove 121. The arc-shaped part of the second piece 413 is rotatably mounted on the base 1. The armature 34 rotates under the action of the iron core 31, thereby driving the push rod 44 to move, which in turn drives the movable spring 41 to swing, so that the movable spring 41 contacts the first stationary spring 42 or the second stationary spring 43. The movable part 442 of the push rod 44 is arc-shaped and the second piece 413 of the movable spring 41 is U-shaped. The base 1 is provided with an arc-shaped groove 121 that matches it, so that the structure is stable when the push rod 44 and the movable spring 41 swing. At the same time, a receiving groove is also provided so that the lint generated during the assembly of the push rod 44 and the movable spring 41 can fall into the corresponding receiving groove. The receiving groove is spaced apart from the movable part 442 and the second piece 413.This will not cause any jamming during the movement of the push rod 44 and the moving spring 41, ensuring smooth operation.

[0034] The base 1 has upwardly extending extension plates 13 on its left and right sides, and L-shaped mounting slots 131 arranged in a mirror image on the two extension plates 13. The compression spring 35 is arranged in a U-shape, and one side of the compression spring 35 has a first spring piece 351 extending to the other side. The end of the first spring piece 351 has an upwardly extending pressing piece 352. When the compression spring 35 is assembled on the base 1, the pressing piece 352 presses against the upper end face of the armature 34. The compression spring 35 is easy to assemble and disassemble. The pressing piece 352 presses and limits the armature 34, and reduces the resistance of the armature 34 when it rotates. Compared with the prior art, it is not necessary to open a slot on the armature 34 for the compression spring 35 to extend out. The manufacturing process is simpler; the two extension plates 13 are also provided with fixing grooves 132, and the yoke 33 is installed in the corresponding fixing grooves 132 on both sides. Two positioning arms are provided above the yoke 33, and the armature 34 is provided with a corresponding positioning block. The positioning block abuts against the front side of the positioning arm. The structure is simple and easy to disassemble and assemble. The yoke 33 can be directly inserted into the fixing groove 132 from top to bottom without affecting the stability of the yoke 33. At the same time, the yoke 33 can also position the armature 34. When the armature 34 moves under the action of the iron core 31, the armature 34 is stable through the cooperation of the positioning block and the positioning arm and the setting of the compression spring 35, and no other structure is needed to install and fix the armature 34.

[0035] The movable part 442 is provided with a notch 443 to connect the first receiving groove 112 and the movable groove 111 when the push rod 44 is installed in the movable space 11. The lint generated after assembly and operation can fall into the first receiving groove 112 through the notch 443, so as to avoid accumulating on the movable part 442 of the push rod 44 and affecting the rotation of the movable part 442.

[0036] The connecting part 441 is provided with two connecting rods 444, which are located on both sides of the second stationary spring 43. The movable spring 41 is provided with two corresponding connecting holes 415. The end of the connecting rod 444 is provided with a second spring piece 445 arranged in a V shape. The second spring piece 445 passes through the corresponding connecting hole 415 and abuts against the movable spring 41 to realize the connection between the push rod 44 and the movable spring 41. This makes the connection structure between the push rod 44 and the movable spring 41 simple and enables quick assembly. When the end of the connecting rod 444 passes through the connecting hole 415, the spring pieces move towards each other. After passing through, the spring pieces open and the end presses against the movable spring 41. This will not hinder the connection between the push rod 44 and the movable spring 41, and it will not be easy to detach after connection. No other tools are required for assembly.

[0037] The magnetic circuit part 3 also includes two coil 32 leads. The upper end of each coil 32 lead is integrally provided with a connecting piece 361. The connecting piece 361 can be folded relative to the coil 32 lead. The two turns of the coil 32 are connected to the connecting piece 361. The two ends of the coil 32 can be wound around the connecting piece 361 first, and then the connecting piece 361 can be folded relative to the coil 32 lead, which facilitates the connection and fixation of the coil 32 and reduces the loosening or falling off of the lead due to vibration or external force.

[0038] The first stationary spring 42 includes a first vertical portion 421, a second vertical portion 422, and an inclined portion 423 integrally formed between the two vertical portions. A stationary contact is provided on the first vertical portion 421, and the second vertical portion 422 extends downward to the outside of the base 1. The inclined portion 423 is provided between the two vertical portions, which can provide an installation space 12 for the moving spring 41 without affecting the contact between the moving spring 41 and the stationary spring.

Claims

1. A push-rod type dual-circuit synchronous switching relay, comprising a base (1), wherein the base (1) is provided with a magnetic circuit part (3) and a contact part (4), the magnetic circuit part (3) comprising an iron core (31), a coil (32) fitted on the iron core (31), a yoke (33), an armature (34) and a compression spring (35), the yoke (33) being located between the coil (32) and the armature (34), and the upper half of the armature (34) passing through the yoke (35). 3) Extending above the iron core (31), the compression spring (35) presses against the armature (34), the contact portion (4) includes a movable spring (41), a first stationary spring (42), a second stationary spring (43), and a push rod (44), the movable spring (41) being disposed between the two stationary springs, and the push rod (44) being disposed between the movable spring (41) and the armature (34), and connected to the movable spring (41) and the armature (34) respectively, characterized in that, The base (1) is provided with a movable space (11) corresponding to the position of the push rod (44). The movable space (11) is arranged along the width direction of the base (1). The push rod (44) includes a connecting part (441) and a movable part (442). The two sides of the connecting part (441) are respectively connected to the moving spring (41) and the armature (34). The movable part (442) is located below the connecting part (441) and is rotatably disposed in the movable space (11). There is a gap between the upper end of the movable part (442) and the side wall of the movable groove (111). The lower end of the movable part (442) is arc-shaped. The movable space (11) is provided with an arc-shaped movable groove (111) corresponding to the lower end of the movable part (442). The bottom of the movable space (11) is provided with a first recessed receiving groove (112). The lower end face of the movable part (442) is flush with the first receiving groove (111). 12) The bottom is separated. The moving spring (41) includes a first piece (412), a second piece (413) and a third piece (414). The second piece (413) is U-shaped. The first piece (412) and the third piece (414) are integrally formed at both ends of the second piece (413). The first piece (412) is vertically upward between the two stationary springs. The third piece (414) extends vertically downward to the outside of the base (1). The base (1) is provided with an installation space (12) corresponding to the position of the moving spring (41). The installation space (12) is provided with an arc groove (121) and a second receiving groove (122) located below the arc groove (121). The arc part of the second piece (413) is rotatably disposed in the arc groove (121), and the lower end face of the second piece (413) is separated from the second receiving groove (122).

2. The push-rod type dual-channel synchronous switching relay according to claim 1, characterized in that, The base (1) has an extension plate (13) extending upward on its left and right sides respectively. The two extension plates (13) have an L-shaped mounting groove (131) arranged in a mirror image. The compression spring (35) is arranged in a U-shape. One side of the compression spring (35) has a first spring piece (351) extending to the other side. The end of the first spring piece (351) has an upwardly extending pressing piece (352). When the compression spring (35) is assembled on the base (1), the pressing piece (352) presses against the upper end face of the armature (34).

3. The push-rod type dual-channel synchronous switching relay according to claim 1 or 2, characterized in that, The movable part (442) is provided with a notch (443) to connect the first receiving groove (112) and the movable groove (111) when the push rod (44) is installed in the movable space (11).

4. The push-rod type dual-channel synchronous switching relay according to claim 1 or 2, characterized in that, The connecting part (441) is provided with two connecting rods (444), which are located on both sides of the second stationary spring (43). The moving spring (41) is provided with two connecting holes (415). The end of the connecting rod (444) is provided with a second spring piece (445) arranged in a V shape. The second spring piece (445) passes through the corresponding connecting hole (415) and abuts against the moving spring (41) to realize the connection between the push rod (44) and the moving spring (41).

5. The push-rod type dual-channel synchronous switching relay according to claim 1 or 2, characterized in that, The magnetic circuit part (3) also includes two coil (32) pins. The upper end of each coil (32) pin is integrally provided with a connecting piece (361). The connecting piece (361) can be folded relative to the coil (32) pin. The two turns of the coil (32) are connected to the connecting piece (361).

6. The push-rod type dual-channel synchronous switching relay according to claim 2, characterized in that, The two extension plates (13) are also provided with fixing grooves (132). The two sides of the yoke (33) are installed in the corresponding fixing grooves (132). Two positioning arms are provided above the yoke (33). The armature (34) is provided with a corresponding positioning block. The positioning block abuts against the front side of the positioning arm.

7. The push-rod type dual-channel synchronous switching relay according to claim 1 or 2, characterized in that, The first stationary spring (42) includes a first vertical part (421), a second vertical part (422), and an inclined part (423) integrally formed between the two vertical parts.

Images