Relay with movable contact spring limiting mechanism

Abstract

The utility model provides a relay with a movable contact spring limiting mechanism, which comprises a shell, a base, an electromagnetic assembly and a movable contact spring assembly, the electromagnetic assembly and the movable contact spring assembly are arranged in the shell, one side of the top of the shell is provided with a movable groove, a movable hole is arranged in the movable groove in a penetrating manner, and a limiting bolt is movably arranged in the movable hole. Connecting grooves are formed in the bottoms of the two inner side walls of the shell, limiting plates are movably connected in the connecting grooves, the movable spring assembly further comprises an armature, a plurality of movable spring sheets are arranged on the armature, a check block is arranged at one end of the armature, a plurality of abutting plates are arranged at the bottom of the check block, a plurality of abutting grooves are formed in one side of each limiting plate, and the movable spring sheets are arranged in the abutting grooves. The abutting plate is inserted into the abutting groove and abuts against the abutting groove, and the bottom of the limiting plug pin abuts against the check block. According to the utility model, the movable spring assembly can be limited, the deformation of the movable spring caused by the breaking force of the relay is avoided, and the service life of the movable spring is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a relay with a movable spring piece limiting mechanism. Background Art

[0002] A relay is an electrical control device. When the change of the input quantity (excitation quantity) reaches the specified requirement, it causes the controlled quantity to undergo a predetermined step change in the electrical output circuit. It has an interactive relationship between the control system (also known as the input circuit) and the controlled system (also known as the output circuit). It is usually used in automated control circuits. It is actually an "automatic switch" that uses a small current to control the operation of a large current. Therefore, it plays the role of automatic adjustment, safety protection, and circuit conversion in the circuit.

[0003] When the relay in the prior art is disconnected, the moving contact is disconnected from the normally open static contact and then contacts and abuts the normally closed static contact. However, since the moving spring is usually thin and soft, the force during the disconnection can easily cause the moving spring to deform, causing the moving spring to deform and greatly reducing its service life. Utility Model Content

[0004] The utility model provides a relay with a movable spring limiting mechanism to solve the problems raised in the above background technology.

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

[0006] A relay with a moving spring piece limiting mechanism comprises a shell, a base, and an electromagnetic assembly and a moving spring assembly arranged inside the shell, a movable groove is provided on one side of the top of the shell, a movable hole is penetrated in the movable groove, a limit pin is movably provided in the movable hole, connecting grooves are provided at the bottom of both inner side walls of the shell, a limit plate is movably connected in the connecting groove, the moving spring assembly also includes an armature, a plurality of moving spring pieces are provided on the armature, a stopper is provided on one end face of the armature, a plurality of abutment plates are provided at the bottom of the stopper, a plurality of abutment grooves are provided on one end face of the limit plate, the abutment plate is inserted into the abutment groove and abuts against the abutment groove, and the bottom of the limit pin abuts against the stopper.

[0007] Preferably, a plurality of static spring groups are inserted and arranged on one side of the base, and the static spring group includes a normally open static spring and a normally closed static spring arranged opposite to the normally open static spring. Static contacts are arranged on both the normally open static spring and the normally closed static spring.

[0008] Preferably, the electromagnetic assembly includes a coil and a yoke, a tension spring is provided on the top of the yoke, the top of one end of the armature is movably connected to one end of the yoke, and the top of the armature is connected to the tension spring.

[0009] Preferably, a plurality of movable spring pieces are each provided with a movable contact, and the movable contact is provided between the static contacts of the normally open static spring and the normally closed static spring.

[0010] Beneficial Effects

[0011] The above one or more technical solutions in a relay with a movable spring limiting mechanism provided by an embodiment of the utility model have at least one of the following technical effects:

[0012] The utility model is provided with a limit pin, a limit plate and a stopper, so that when the relay is disconnected, the moving spring piece moves toward the normally open static spring. When the moving static point is disconnected from the normally open static point and contacts the normally closed static point, the limit pin abuts against the stopper, and the abutment plate is inserted into the abutment groove and abuts against the abutment groove, thereby limiting the moving spring assembly and avoiding the problem that the moving spring piece is deformed by the force during disconnection, thereby effectively improving the service life of the moving spring piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the housing structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the limit plate of the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the dynamic spring assembly of the utility model;

[0018] The corresponding relationship between the various figure labels and component names in the figure is as follows:

[0019] 1. Shell; 2. Base; 3. Electromagnetic assembly; 4. Moving spring assembly; 5. Movable hole; 6. Limiting pin; 7. Limiting plate; 8. Armature; 9. Moving spring; 10. Stopper; 11. Abutment plate; 12. Abutment groove; 13. Normally open static spring; 14. Normally closed static spring; 15. Static contact; 16. Coil; 17. Yoke; 18. Tension spring; 19. Moving contact. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1-5 As shown, it is a structural schematic diagram of a relay with a movable spring limit mechanism according to a preferred embodiment of the utility model;

[0024] In this embodiment, the invention comprises a shell 1, a base 2, and an electromagnetic assembly 3 and a dynamic spring assembly 4 arranged inside the shell 1. A movable groove is provided on one side of the top of the shell 1, and a movable hole 5 is provided in the movable groove. A limit pin 6 is movably provided in the movable hole 5. The bottom of both inner side walls of the shell 1 is provided with a connecting groove, and a limit plate 7 is movably connected in the connecting groove. The dynamic spring assembly 4 also includes an armature 8, and a plurality of dynamic spring pieces 9 are provided on the armature 8. A stopper 10 is provided on one end surface of the armature 8. The bottom of the stopper 10 is integrally provided with a plurality of abutment plates 11, and one end face of the limiting plate 7 is provided with a plurality of abutment grooves 12. The abutment plates 11 are inserted into the abutment grooves 12 and abut against the abutment grooves 12. The bottom of the limiting latch 6 abuts against the stopper 10. Through the abutment of the limiting latch 6 and the stopper 10, the abutment plates 11 are inserted into the abutment grooves 12 and abut against the abutment grooves 12, thereby limiting the dynamic spring assembly 4 and avoiding the problem of deformation of the dynamic spring sheet 9 caused by the force during disconnection.

[0025] In this embodiment, a plurality of static spring groups are inserted into one side of the base 2, and the static spring group includes a normally open static spring 13 and a normally closed static spring 14 arranged opposite to the normally open static spring 13, and static contacts 15 are provided on both the normally open static spring 13 and the normally closed static spring 14.

[0026] In this embodiment, the electromagnetic component 3 includes a coil 16 and a yoke 17. A tension spring 18 is provided on the top of the yoke 17. The top of one end of the armature 8 is movably connected to one end of the yoke 17. The top of the armature 8 is connected to the tension spring 18. When the electromagnetic component 3 is powered off, the tension spring 18 pulls the armature 8 so that the moving contact 19 moves following the moving spring sheet 9 to complete the disconnection and closing action.

[0027] In this embodiment, a plurality of movable spring pieces 9 are provided with movable contacts 19, and the movable contacts 19 are provided between the static contacts 15 of the normally open static spring 13 and the normally closed static spring 14. When the coil 16 is energized, an electromagnetic attraction is generated to attract the armature, so that the movable spring piece 9 moves toward the normally open static spring 13, and the movable contact 19 contacts the static contact 15 on the normally open static spring 13 to complete the opening action. When the coil 16 is de-energized, the electromagnetic disappears, and the armature 8 is pulled by the tension spring 18 to drive the movable spring piece 9 to move toward the normally closed static spring 14 and contact the static contact 15 on the normally closed static spring 14 to complete the closing action.

[0028] The utility model provides a relay with a movable spring limit mechanism, and its installation method, connection method or setting method are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0029] Technologies not described in detail in the present invention are all well-known technologies. Those skilled in the art can easily implement the present invention based on understanding this specification, and the contents shown in the drawings are part of this specification.

[0030] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A relay with a movable spring limiting mechanism, comprising a housing (1), a base (2), and an electromagnetic assembly (3) and a movable spring assembly (4) arranged inside the housing (1), characterized in that: A movable groove is provided on one side of the top of the shell (1), a movable hole (5) is provided in the movable groove, a limit pin (6) is movably provided in the movable hole (5), connecting grooves are provided at the bottom of both inner side walls of the shell (1), a limit plate (7) is movably connected in the connecting groove, the movable spring assembly (4) also includes an armature (8), a plurality of movable spring sheets (9) are provided on the armature (8), a stopper (10) is provided on one end face of the armature (8), a plurality of abutment plates (11) are provided at the bottom of the stopper (10), a plurality of abutment grooves (12) are provided on one end face of the limit plate (7), the abutment plate (11) is inserted into the abutment groove (12) and abuts against the abutment groove (12), and the bottom of the limit pin (6) abuts against the stopper (10).

2. A relay with a movable spring limit mechanism according to claim 1, characterized in that: A plurality of static spring groups are plugged into one side of the base (2), the static spring group comprising a normally open static spring (13) and a normally closed static spring (14) arranged opposite to the normally open static spring (13), and static contacts (15) are provided on both the normally open static spring (13) and the normally closed static spring (14).

3. A relay with a movable spring limit mechanism according to claim 1, characterized in that: The electromagnetic assembly (3) comprises a coil (16) and a yoke (17); a tension spring (18) is provided on the top of the yoke (17); the top of one end of the armature (8) is movably connected to one end of the yoke (17); and the top of the armature (8) is connected to the tension spring (18).

4. A relay with a movable spring limit mechanism according to claim 2, characterized in that: A plurality of moving spring pieces (9) are each provided with a moving contact (19), and the moving contact (19) is arranged between the static contacts (15) of the normally open static spring (13) and the normally closed static spring (14).

Images