Novel auxiliary contact

Abstract

The utility model discloses a novel auxiliary contact which comprises a base, a supporting frame and an operating mechanism are arranged in the base, static contacts are arranged on two sides of two ends of the supporting frame, movable contacts are arranged on two sides of the operating mechanism, and the movable contacts are arranged between the static contacts and abut against the static contact at any end. And a conducting rod is arranged between the movable contacts, so that the movable contacts are electrically connected with each other. According to the utility model, the movable reeds at the two sides of the operating mechanism are mutually conducted through the conducting rod, and when any one movable contact abuts against the static contacts of the first static reeds at the two sides of the supporting frame, the two wire pressing screws of the first wiring terminal are electrified at the same time, so that the product has the advantage of being electrified without delay.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary contacts, in particular to a novel auxiliary contact. Background Art

[0002] Auxiliary contacts, as an auxiliary functional component of miniature circuit breakers, are widely used in electrical scenarios.

[0003] The contact assembly in the existing miniature circuit breaker is composed of multiple independent static contacts and multiple independent moving contacts. Since it takes a while for the handle on the miniature circuit breaker to move from the closing position to the opening position or from the opening position to the closing position, there is a defect that the multiple moving contacts and static contacts on the miniature circuit breaker cannot be energized without delay. Therefore, the applicant has made a useful design and found a solution to the above problem. The technical solution to be introduced below is produced under this background. Summary of the invention

[0004] The purpose of the utility model is to overcome the shortcomings of the above-mentioned background technology design and provide a product with no delay in powering on.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A new type of auxiliary contact includes a base, a support frame and an operating mechanism are arranged in the base, static contacts are arranged on both ends of the support frame, moving contacts are arranged on both sides of the operating mechanism and are arranged between the static contacts and abut against the static contact at any end, and a conductive rod is arranged between the moving contacts to electrically connect the moving contacts to each other.

[0007] Preferably, a first static spring piece is provided on both sides of one end of the support frame, and a second static spring piece is provided on both sides of the other end of the support frame. The static contact is fixed on the heads of the first static spring piece and the second static spring piece, and the first static spring piece is electrically connected to the electromagnetic release.

[0008] Preferably, the operating mechanism comprises a movable contact frame, grooves are provided on both sides of the movable contact frame, movable springs are provided in the grooves, and the movable contact point is fixedly arranged on the head of the movable spring.

[0009] Preferably, an end cover is provided on the top of the base, an electromagnetic release is provided inside the base, and a first wiring terminal and a second wiring terminal are provided at both ends of the base respectively.

[0010] Preferably, the first wiring terminal is electrically connected to the electromagnetic release, and the second wiring terminal is electrically connected to the moving spring piece through a flexible connecting wire.

[0011] Preferably, crimping screws are provided on both sides of the first wiring terminal, crimping screws are provided on both sides of the second wiring terminal, and a crimping screw is provided below the crimping screw on one side of the second wiring terminal.

[0012] Preferably, the movable contact frame is provided with an arc-blocking plate, and elastic parts that shrink inward are provided on both sides of the arc-blocking plate. The elastic part and the arc-blocking plate are in a vertical relationship. The elastic part is provided with a contact surface and abuts against the movable spring plate, thereby pressing the movable spring plate to be fixed in the groove.

[0013] Preferably, the two ends of the conductive rod are welded to the movable spring sheet, and the middle portion of the conductive rod is configured to be U-shaped.

[0014] Beneficial effects:

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model uses a conductive rod to make the movable springs on both sides of the operating mechanism conduct to each other. When any movable contact abuts against the static contact of the first static spring on both sides of the supporting frame, the two pressing screws of the first terminal are energized at the same time, thereby overcoming the problems mentioned in the background technology and making the product have the advantage of no delay in powering on. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a new auxiliary contact of the utility model Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of a new auxiliary contact of the utility model Figure 2 ;

[0019] Figure 3 The internal structure of a new auxiliary contact of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 4 The internal structure of a new auxiliary contact of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 5 This is a structural schematic diagram of a movable contact frame of a new auxiliary contact of the utility model;

[0022] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0023] Figure numerals: 1. base; 2. support frame; 3. operating mechanism; 4. conductive rod; 5. end cover; 11. electromagnetic release; 12. first terminal; 13. second terminal; 14. wire pressing screw; 21. first static spring; 22. second static spring; 23. static contact; 31. moving spring; 32. moving contact frame; 33. arc blocking plate; 34. moving contact; 321. groove; 331. elastic part; 332. contact surface. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] In the embodiment of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0027] Reference example Figures 1 to 5 A novel auxiliary contact comprises a base 1, a support frame 2 and an operating mechanism 3 are arranged in the base 1, static contacts 23 are arranged on both sides of both ends of the support frame 2, and moving contacts 34 are arranged on both sides of the operating mechanism 3, and are arranged between the static contacts 23 and abut against the static contact 23 at any end, and a conductive rod 4 is arranged between the moving contacts 34, so that the moving contacts 34 are electrically connected to each other, and the moving spring pieces 31 located on both sides of the operating mechanism 3 are mutually conductive through the conductive rod 4, when any one of the moving contacts 34 abuts against the static contacts 23 of the first static spring pieces 21 on both sides of the support frame 2, the two pressing screws 14 of the first wiring terminal 12 are energized at the same time, avoiding the situation that the two currents are energized successively due to errors generated in the actual manufacturing process, thereby overcoming the problems mentioned in the background technology and making the circuit energized without delay;

[0028] It is worth mentioning that a first static spring piece 21 is provided on both sides of one end of the support frame 2, and a second static spring piece 22 is provided on both sides of the other end of the support frame 2. The static contact 23 is fixedly arranged at the head of the first static spring piece 21 and the second static spring piece 22. The first static spring piece 21 is electrically connected to the electromagnetic release 11.

[0029] It is worth mentioning that the operating mechanism 3 includes a moving contact frame 32, grooves 321 are provided on both sides of the moving contact frame 32, and a moving spring 31 is provided in the groove 321. The moving contact 34 is fixedly arranged at the head of the moving spring 31. The moving contact frame 32 provides a support point for the moving spring 31, and the groove 321 provides a guide for the assembly of the moving spring frame. The moving contact 34 and the static contact 23 play a role in transmitting current, and play a role in determining whether the service life of the miniature circuit breaker is long.

[0030] It is worth mentioning that an end cover 5 is provided on the top of the base 1, an electromagnetic release 11 is provided inside the base 1, and a first wiring terminal 12 and a second wiring terminal 13 are provided at both ends of the base 1, and the end cover 5 protects the components inside the base 1;

[0031] It is worth mentioning that the first terminal 12 is electrically connected to the electromagnetic release 11, and the second terminal 13 is electrically connected to the moving reed 31 through a flexible connection line. The current of the first static reed 21 is transmitted to the first terminal 12 through the coil of the electromagnetic release 11. The fault in the circuit is detected by the electromagnetic principle. Once a circuit overload or short circuit fault is detected, the circuit can be quickly cut off to avoid further damage to the equipment and protect personnel safety. The second terminal 13 is convenient for transmitting the current to the moving reed 31 through the flexible connection line;

[0032] It is worth mentioning that the first wiring terminal 12 is provided with a wire pressing screw 14 on both sides, the second wiring terminal 13 is provided with a wire pressing screw 14 on both sides, and a wire pressing screw 14 is provided below the wire pressing screw 14 on one side of the second wiring terminal 13, and the wire pressing screw 14 is convenient for electrical connection with the wire;

[0033] It is worth mentioning that the moving contact frame 32 is provided with an arc-blocking piece 33, and elastic parts 331 that shrink inward are provided on both sides of the arc-blocking piece 33. The elastic part 331 and the arc-blocking piece 33 are in a vertical relationship. The elastic part 331 is provided with a contact surface 332, and abuts against the moving spring piece 31, thereby pressing and fixing the moving spring piece 31 in the groove 321. The arc-blocking piece 33 increases the creepage distance of the moving spring piece 31 and the air gap with the electromagnetic release 11, thereby improving the electrical insulation of the product. The elastic part 331 connects and fixes the arc-blocking piece 33 to the moving contact frame 32;

[0034] It is worth mentioning that the two ends of the conductive rod 4 are welded on the movable spring 31, and the middle shape of the conductive rod 4 is set to be U-shaped. The U-shaped structure facilitates the bimetallic strip in the base 1 to pass through the conductive rod 4. When the bimetallic strip is heated, it deforms and bends, thereby driving the contact frame 32 to move, so that the connection point of the operating mechanism 3 is disintegrated, and the conduction of the circuit is cut off;

[0035] The above design scheme can enable the product to achieve the advantage of no delay in powering on.

[0036] 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 novel auxiliary contact, comprising a base (1), wherein a support frame (2) and an operating mechanism (3) are arranged in the base (1), characterized in that: Static contacts (23) are provided on both sides of both ends of the support frame (2); movable contacts (34) are provided on both sides of the operating mechanism (3) and are arranged between the static contacts (23) and abut against the static contact (23) at any end; and conductive rods (4) are provided between the movable contacts (34) so ​​that the movable contacts (34) are electrically connected to each other.

2. The novel auxiliary contact according to claim 1 is characterized in that: A first static spring piece (21) is provided on both sides of one end of the support frame (2), and a second static spring piece (22) is provided on both sides of the other end of the support frame (2). The static contact (23) is fixedly arranged at the heads of the first static spring piece (21) and the second static spring piece (22). The first static spring piece (21) is electrically connected to the electromagnetic release (11).

3. The novel auxiliary contact according to claim 2 is characterized in that: The operating mechanism (3) comprises a moving contact frame (32), grooves (321) are provided on both sides of the moving contact frame (32), a moving reed (31) is provided in the groove (321), and the moving contact point (34) is fixedly arranged on the head of the moving reed (31).

4. The novel auxiliary contact according to claim 3 is characterized in that: An end cover (5) is provided on the top of the base (1), an electromagnetic release (11) is provided inside the base (1), and a first wiring terminal (12) and a second wiring terminal (13) are respectively provided at two ends of the base (1).

5. The novel auxiliary contact according to claim 4 is characterized in that: The first wiring terminal (12) is electrically connected to the electromagnetic release (11), and the second wiring terminal (13) is electrically connected to the moving spring (31) via a flexible connecting wire.

6. The novel auxiliary contact according to claim 5 is characterized in that: A wire pressing screw (14) is provided on both sides of the first wiring terminal (12), a wire pressing screw (14) is provided on both sides of the second wiring terminal (13), and a wire pressing screw (14) is provided below the wire pressing screw (14) on one side of the second wiring terminal (13).

7. The novel auxiliary contact according to claim 6 is characterized in that: The movable contact frame (32) is provided with an arc-blocking plate (33), and inwardly contracted elastic parts (331) are provided on both sides of the arc-blocking plate (33), and the elastic part (331) and the arc-blocking plate (33) are in a vertical relationship. The elastic part (331) is provided with a contact surface (332) and abuts against the movable spring plate (31), thereby pressing and fixing the movable spring plate (31) in the groove (321).

8. The novel auxiliary contact according to claim 3 is characterized in that: The two ends of the conductive rod (4) are welded to the movable spring sheet (31), and the middle part of the conductive rod (4) is configured to be U-shaped.

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