Riveting-free U-shaped magnetic steel structure of relay

Abstract

The utility model relates to the technical field of relays, in particular to a non-riveting U-shaped magnetic steel structure of a relay. According to the technical scheme, the device comprises a base, and the interior of the base is of a hollow structure; the coil holder is slidably clamped in the base, a coil is wound on the outer wall of the coil holder, magnetic steel is inserted in the coil holder, and the magnetic steel is located in the base; the elastic sheet is clamped at one end of the inserting position of the coil holder and the magnetic steel, and an armature is arranged on one side of the upper end of the elastic sheet and located on one side of the upper end of the magnetic steel; the push piece is fixedly clamped at the upper end of the armature, is positioned right above the base and is in sliding connection with the base; the connecting assembly is arranged at one end of the base and used for controlling a circuit to be closed or opened. According to the utility model, the complexity of the production process can be reduced, the production efficiency can be improved, the manufacturing cost can be reduced, the connection stability and reliability between the elements can be improved by the embedding buckle fixing mode, and meanwhile, the disposable material quantity can be reduced by the design.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a non-riveted U-shaped magnetic steel structure for a relay. Background Art

[0002] A relay is an electrical control device that can indirectly control large current or high voltage in a circuit by controlling small current in the control circuit, so as to realize the control and protection of the circuit. The basic working principle of a relay is to utilize the principle of electromagnetic induction, and drive the closing or opening of mechanical contacts through the magnetic field generated by an electromagnetic coil. In the existing relay structure, a riveting method is adopted for connection. During the riveting process, due to relatively large local pressure, stress concentration will occur near the riveting point. This stress concentration may cause material fatigue, thereby affecting the long-term stability of the relay, reducing the reliability and service life of the relay. In addition, the riveting structure is inconvenient for relay maintenance and replacement. For this reason, the utility model proposes a non-riveted U-shaped magnetic steel structure for a relay. Content of the Utility Model

[0003] The purpose of the utility model is to address the problems in the background art that in the existing relay structure, a riveting method is adopted for connection. During the riveting process, due to relatively large local pressure, stress concentration will occur near the riveting point. This stress concentration may cause material fatigue, thereby affecting the long-term stability of the relay, reducing the reliability and service life of the relay. In addition, the riveting structure is inconvenient for relay maintenance and replacement, and proposes a non-riveted U-shaped magnetic steel structure for a relay.

[0004] The technical solution of the utility model: a non-riveted U-shaped magnetic steel structure for a relay, comprising: a base, and the interior of the base is provided with a hollow structure; a wire holder slidably and detachably arranged inside the base, a coil is wound around the outer wall of the wire holder, a magnetic steel is inserted inside the wire holder, and the magnetic steel is located inside the base; an elastic piece clamped at one end of the insertion part of the wire holder and the magnetic steel, one side of the upper end of the elastic piece is provided with an armature, and the armature is located on one side of the upper end of the magnetic steel; a push piece fixedly clamped at the upper end of the armature, the push piece is located directly above the base and is slidably connected with the base; a connection component arranged at one end of the base for controlling the closing or opening of the circuit.

[0005] Optionally, the connection component includes a fixed seat fixedly arranged at one end of the base, a plurality of card seats are arranged inside the fixed seat, a group of static reeds are clamped on the card seats, static contacts are respectively fixedly arranged on the opposite surfaces of the upper ends of the static reeds, a moving reed is arranged between the static contacts, a connecting piece is clamped at the lower end of the moving reed, and the connecting piece is fixedly clamped with the card seat.

[0006] Optionally, a set of coil terminals are provided through one end of the wire holder. The upper ends of the coil terminals are connected to both ends of the coil, and the lower ends of the coil terminals penetrate through the base and extend to the outside.

[0007] Optionally, a set of card slots are provided at the upper end of the armature. One end of the push piece is fixedly provided with a card block, and the card block is clamped with the card slot.

[0008] Optionally, one end of the push piece is fixedly provided with an insertion block, and a jack is provided on one side of the moving contact spring, and the insertion block is inserted into the jack.

[0009] Optionally, static contact spring terminals are fixedly provided at the bottom of the static contact spring, and the static contact spring terminals are bent at 90 degrees. The bent part of the static contact spring terminal contacts the inner bottom surface of the connection component, and the lower end of the static contact spring terminal penetrates through the connection component and extends to the outside.

[0010] Optionally, a moving contact spring terminal is fixedly provided at the lower end of the connecting piece, and the moving contact spring terminal penetrates through the connection component and extends to the outside.

[0011] Optionally, the elastic piece is arranged in an "L" shape, and a set of clamping feet are arranged at the lower end of the elastic piece, and the clamping feet are stably clamped at the lower end of the armature.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects:

[0013] By clamping one end of the elastic piece to the insertion part of the wire holder and the magnet, and through the card slots, card blocks, insertion blocks and jacks, the armature, the push piece and the jack are connected without riveting, which can reduce the complexity of the production process, improve the production efficiency and reduce the manufacturing cost;

[0014] Furthermore, the way of fixing by inlaying snap fasteners will also improve the connection stability and reliability between components. At the same time, this design will also reduce the amount of disposable materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a non-riveted U-shaped magnetic steel structure of a relay of the utility model is given;

[0016] Figure 2 For Figure 1 exploded view;

[0017] Figure 3 For Figure 1 the split structure schematic diagram of the elastic piece in

[0018] Reference Signs:

[0019] 1. Base; 2. Wire holder; 3. Coil; 4. Magnet; 5. Elastic piece; 6. Armature; 7. Push piece;

[0020] 8. Connecting component; 81. Fixed seat; 82. Card holder; 83. Static spring; 84. Static contact; 85. Moving spring; 86. Connecting piece;

[0021] 9. Coil terminal; 10. Card slot; 11. Card block; 12. Insert block; 13. Jack; 14. Static spring terminal; 15. Moving spring terminal. Detailed implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant accompanying drawings. Several embodiments of the present invention are given in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0026] Embodiment

[0027] Such as Figure 1 And Figure 2As shown in the figure, a non-riveted U-shaped magnetic steel structure for a relay proposed by the present utility model includes: a base 1, and the interior of the base 1 is provided with a hollow structure. A limiting hole is opened on the upper surface of the base 1; a wire frame 2 is slidably clamped inside the base 1. A coil 3 is wound around the outer wall of the wire frame 2 to facilitate generating a magnetic field for the wire frame 2. A magnetic steel 4 is inserted inside the wire frame 2, and a slot is opened at the insertion part of the wire frame 2 and the magnetic steel 4. The magnetic steel 4 is arranged in a "U" shape, and a limiting block corresponding to the clamping hole is arranged on the magnetic steel 4 to limit the magnetic steel 4, and the magnetic steel 4 is located inside the base 1, making the magnetic steel 4 more stable when clamped inside the base 1; an elastic piece 5 is clamped at one end of the insertion part of the wire frame 2 and the magnetic steel 4. A bent piece is arranged on the elastic piece 5, and one end of the elastic piece 5 is located inside the slot, and together with the bent piece, it makes the clamping in the slot more stable. One side of the upper end of the elastic piece 5 is provided with an armature 6, and the armature 6 is located on one side of the upper end of the magnetic steel 4; a push piece 7 is fixedly clamped at the upper end of the armature 6, and an avoidance through groove is opened at the upper end of the push piece 7. The push piece 7 is located directly above the base 1 and is slidably connected to the base 1; a connection component 8 is arranged at one end of the base 1 for controlling the closing or opening of the circuit.

[0028] As Figure 2 shown in the figure, the connection component 8 includes a fixed seat 81 fixedly arranged at one end of the base 1, and the base 1 and the fixed seat 81 are integrally formed. A plurality of clamping seats 82 are arranged inside the fixed seat 81. A group of static contacts 83 are clamped on the clamping seats 82, and the static contacts 83 are symmetrically arranged. Static contacts 84 are respectively fixedly arranged on the opposite surfaces of the upper ends of the static contacts 83, and the static contacts 84 are symmetrically arranged. A moving contact 85 is arranged between the static contacts 84, and a moving contact is arranged on the moving contact 85, and the moving contact is located between the static contacts 84. The lower end of the moving contact 85 is clamped with a connecting piece 86 through a clamping post, and the connecting piece 86 is fixedly clamped with the clamping seat 82 to stably install the moving contact 85.

[0029] Furthermore, a group of coil terminals 9 are arranged through one end of the wire frame 2. The upper ends of the coil terminals 9 are connected to both ends of the coil 3, and the lower ends of the coil terminals 9 penetrate through the base 1 and extend to the outside to facilitate transmitting voltage to the coil 3.

[0030] Secondly, a group of clamping grooves 10 are opened at the upper end of the armature 6. A clamping block 11 is fixedly arranged at one end of the push piece 7, and the clamping block 11 is clamped with the clamping groove 10, enabling the armature 6 and the push piece 7 to be stably clamped without riveting.

[0031] Furthermore, an insertion block 12 is fixedly arranged at one end of the push piece 7. A jack 13 is opened on one side of the moving contact 85, and the insertion block 12 is inserted into the jack 13. The insertion block 12 and the jack 13 are designed in cooperation, with convenient installation, facilitating automation and reducing the requirement for positioning accuracy.

[0032] In addition, static reed terminals 14 are fixedly arranged at the bottom of the static reed 83 respectively, and the static reed terminals 14 are bent at 90 degrees. The bent part of the static reed terminals 14 contacts the inner bottom surface of the connection assembly 8, and the lower ends of the static reed terminals 14 penetrate through the connection assembly 8 and extend to the outside, making the installation of the static reed 83 more stable.

[0033] Again, a moving reed terminal 15 is fixedly arranged at the lower end of the connecting piece 86, and the moving reed terminal 15 penetrates through the connection assembly 8 and extends to the outside, facilitating connection to the circuit.

[0034] Finally, the elastic piece 5 is arranged in an "L" - shaped structure. A group of clamping feet are arranged at the lower end of the elastic piece 5, and the clamping feet are stably clamped at the lower end of the armature 6, facilitating the quick clamping and installation of the elastic piece 5 and facilitating maintenance and replacement.

[0035] The working principle of this embodiment is as follows: The magnet 4 is stably inserted from one end of the bobbin 2, and the bobbin 2 with the inserted magnet 4 is horizontally inserted into the inside of the base 1. Subsequently, the armature 6 is stably clamped with the elastic piece 5 through the clamping feet at the bottom of the elastic piece 5 and the bent part. After clamping, the lower end of the elastic piece 5 is inserted into the insertion seam between the bobbin 2 and the magnet 4, and the armature 6 is arranged at one end of the magnet 4.

[0036] Further, the push piece 7 is placed on the upper surface of the base 1, and the clamping block 11 and the clamping groove 10 are stably clamped with each other. Then, the insertion block 12 and the jack 13 on the moving reed 85 are clamped. The component realizes a non - riveting design during the connection process, which can reduce the complexity of the production process, improve the production efficiency, and reduce the manufacturing cost. The way of fixing with inlaid snap - fasteners also improves the connection stability and reliability between components. At the same time, this design also reduces the amount of disposable materials used.

[0037] When the relay is powered on, a voltage is applied to the coil 3 through the coil terminal 9. The current passing through the armature 6 generates a magnetic field, forming opposite magnetic poles on both sides of the magnet 4. The upper end of the magnet 4 attracts the armature 6, the armature 6 drives the elastic piece 5 to deflect, the armature 6 drives the push piece 7 to move on the upper surface of the base 1 through the clamping groove 10 and the clamping block 11, and the push piece 7 pushes the moving reed 85 to move through the insertion block 12 and the jack 13, so that the moving contact on the moving reed 85 contacts the static contact 84 on the static reed 83, thereby controlling the circuit to achieve closing or opening.

[0038] The above - mentioned specific embodiments are merely several alternative embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspirations of the above - mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above - mentioned specific embodiments.

Claims

1. A relay without riveting U-shaped magnetic steel structure, characterized in that: include: A base (1), wherein the interior of the base (1) is a hollow structure; A wire rack (2) is slidably engaged with the interior of the base (1), a coil (3) is wound around the outer wall of the wire rack (2), a magnetic steel (4) is inserted into the interior of the wire rack (2), and the magnetic steel (4) is located inside the base (1); An elastic sheet (5) is clamped and arranged at one end of the connection between the wire frame (2) and the magnetic steel (4), an armature (6) is arranged on one side of the upper end of the elastic sheet (5), and the armature (6) is located on one side of the upper end of the magnetic steel (4); A push piece (7) fixedly clamped to the upper end of the armature (6), wherein the push piece (7) is located directly above the base (1) and is slidably connected to the base (1); A connection component (8) is arranged at one end of the base (1) and is used to control the closing or opening of a circuit.

2. A relay without rivet U-shaped magnetic steel structure according to claim 1, characterized in that: The connecting assembly (8) comprises a fixing seat (81) fixedly arranged at one end of the base (1), a plurality of clamping seats (82) are arranged inside the fixing seat (81), a group of static springs (83) are clamped on the clamping seats (82), static contacts (84) are fixedly arranged on the opposite surfaces of the upper ends of the static springs (83), a moving spring (85) is arranged between the static contacts (84), a connecting piece (86) is clamped on the lower end of the moving spring (85), and the connecting piece (86) is fixedly clamped with the clamping seat (82).

3. The relay U-shaped magnetic steel structure without rivets according to claim 1, characterized in that: A group of coil terminals (9) are provided through one end of the wire frame (2); the upper ends of the coil terminals (9) are connected to the two ends of the coil (3); and the lower ends of the coil terminals (9) penetrate the base (1) and extend to the outside.

4. The relay U-shaped magnetic steel structure without rivets according to claim 1, characterized in that: A group of slots (10) are provided at the upper end of the armature (6), a block (11) is fixedly provided at one end of the push piece (7), and the block (11) is engaged with the slots (10).

5. The relay rivetless U-shaped magnetic steel structure according to claim 2, characterized in that: An insert block (12) is fixedly provided at one end of the push piece (7), and an insert hole (13) is provided at one side of the movable spring (85), and the insert hole (13) is plugged into the insert block (12).

6. A relay rivetless U-shaped magnetic steel structure according to claim 2, characterized in that: A static spring terminal (14) is fixedly arranged at the bottom of each static spring (83), and the static spring terminal (14) is bent at 90 degrees. The bent portion of the static spring terminal (14) contacts the inner bottom surface of the connecting component (8), and the lower end of the static spring terminal (14) passes through the connecting component (8) and extends to the outside.

7. The relay U-shaped magnetic steel structure without rivets according to claim 2, characterized in that: A spring terminal (15) is fixedly provided at the lower end of the connecting piece (86), and the spring terminal (15) passes through the connecting component (8) and extends to the outside.

8. The relay non-rivet U-shaped magnetic steel structure according to claim 1, characterized in that: The elastic sheet (5) is arranged in an "L"-shaped structure, and a group of clamping feet are arranged at the lower end of the elastic sheet (5), and the clamping feet are stably clamped on the lower end of the armature (6).

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