A magnetic tripping mechanism

Abstract

The utility model discloses a magnetic tripping mechanism, which relates to the field of circuit breakers, and comprises a base, a yoke and an armature installed in the base, a connecting plate is provided between the yoke and the armature, both sides of the armature are hingedly installed on the yoke, an elastic member connecting the front end of the yoke and the front end of the armature is provided between the two, and a limit baffle for limiting the armature is provided on the base. The utility model has the advantages of low processing cost, high installation efficiency and improved performance.

Description

Technical Field

[0001] The utility model relates to the field of circuit breakers, in particular to a magnetic tripping mechanism. Background Art

[0002] The prior art, such as a two-pole molded case circuit breaker disclosed in publication number CN219476589U on publication date 2023.08.04, discloses an electromagnetic tripping mechanism in Figure 4 and paragraph 0037. There is a bracket plate under the yoke, and the two are fixedly connected. This structure has the disadvantages of small yoke magnetic flux, inconvenient installation of the yoke and the bracket plate, and high processing cost. Utility Model Content

[0003] In order to overcome the shortcomings of the background technology, the utility model provides a magnetic tripping mechanism with low processing cost, high installation efficiency and improved performance.

[0004] The technical solution adopted by the utility model is: a magnetic release mechanism, which includes a base and a yoke and an armature installed in the base, a connecting plate is provided between the yoke and the armature, the two sides of the armature are hingedly installed on the yoke, an elastic part connecting the front end of the yoke and the front end of the armature is provided between the two, and a limit baffle for limiting the armature is provided on the base.

[0005] The armature is provided with a mounting shaft extending to both sides, and both ends of the yoke are provided with mounting holes for hinged mounting of the mounting shaft.

[0006] One of the mounting holes is provided with a notch.

[0007] The front end of the armature is provided with an integrally formed bracket portion, the bracket portion is provided with a plurality of grooves for hanging the elastic member and arranged at intervals, and the front end of the yoke is provided with a through hole for hanging the elastic member.

[0008] The elastic member is a tension spring.

[0009] The bracket portion is located at a side edge of the armature, and the through hole is also located at a side edge of the armature.

[0010] The bottom of the yoke is provided with a positioning plate extending to both sides, and the inner wall of the base is provided with a positioning groove adapted to the positioning plate.

[0011] The beneficial effects of the utility model are as follows: the technical solution eliminates the setting of the bracket plate, and directly installs the armature on the yoke, which increases the volume of the yoke and can generate a larger magnetic flux, thereby improving the working performance. In addition, it can also save costs and simplify the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the magnetic tripping mechanism of an embodiment of the utility model.

[0013] Figure 2 It is a schematic diagram of the structure of the yoke and the armature.

[0014] Figure 3 It is a schematic diagram of the structure of the counter base. DETAILED DESCRIPTION

[0015] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0016] As shown in the figure, a magnetic release mechanism includes a base 1 and a yoke 2 and an armature 3 installed in the base 1, a connecting plate 4 is provided between the yoke 2 and the armature 3, both sides of the armature 3 are hingedly installed on the yoke 2, an elastic member 5 connecting the front end of the yoke 2 and the front end of the armature 3 is provided between the two, and a limit baffle 6 for limiting the armature 3 is provided on the base 1; this technical solution cancels the setting of the bracket plate and directly installs the armature on the yoke, the volume of the yoke is increased, and a larger magnetic flux can be generated, thereby improving the working performance. In addition, it can also save costs and simplify the installation process.

[0017] The armature 3 is provided with a mounting shaft 7 extending to both sides, and the two ends of the yoke 2 are provided with mounting holes 8 for hinged mounting of the mounting shaft 7, one of the mounting holes 8 is provided with a notch 9, and the mounting shaft on one side is first inserted into the mounting hole without a notch, and then the mounting shaft on the other side is inserted into the mounting hole along the notch, which has the advantage of easy installation.

[0018] The front end of the armature 3 is provided with an integrally formed bracket portion 10, and the bracket portion 10 is provided with a plurality of grooves 11 arranged at intervals for hanging the elastic member 5. The front end of the yoke 2 is provided with a through hole 12 for hanging the elastic member 5. The elastic member 5 adopts a tension spring, and the hanging position of the tension spring can be adjusted to select the most suitable elastic preload force.

[0019] The bracket portion 10 is located at the side of the armature 3, and the through hole is also located at the side of the armature 3, which plays a role of avoiding and can save installation space.

[0020] The bottom of the yoke 2 is provided with a positioning plate 13 extending to both sides, and the inner wall of the base 1 is provided with a positioning groove 14 adapted to the positioning plate. When installing the yoke, it only needs to insert the positioning plate into the positioning groove to install it in place.

[0021] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0023] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the utility model concept is not limited to this utility model. Any modification using the utility model concept will be included in the scope of protection of this patent.

Claims

1. A magnetic tripping mechanism, comprising a base (1) and a yoke (2) and an armature (3) mounted in the base (1), wherein a connecting plate (4) is provided between the yoke (2) and the armature (3), and characterized in that: The armature (3) is hingedly mounted on the yoke (2) at both sides, an elastic member (5) connecting the front end of the yoke (2) and the front end of the armature (3) is provided between the two, and a limit baffle (6) for limiting the position of the armature (3) is provided on the base (1).

2. The magnetic tripping mechanism according to claim 1, characterized in that: The armature (3) is provided with a mounting shaft (7) extending to both sides, and both ends of the yoke (2) are provided with mounting holes (8) for hinged mounting of the mounting shaft (7).

3. The magnetic tripping mechanism according to claim 2, characterized in that: One of the mounting holes (8) is provided with a notch (9).

4. The magnetic tripping mechanism according to claim 1, characterized in that: The front end of the armature (3) is provided with an integrally formed bracket portion (10), the bracket portion (10) is provided with a plurality of grooves (11) arranged at intervals for the elastic member (5) to be hung, and the front end of the yoke (2) is provided with a through hole (12) for the elastic member (5) to be hung.

5. The magnetic tripping mechanism according to claim 4, characterized in that: The elastic member (5) is a tension spring.

6. The magnetic tripping mechanism according to claim 4, characterized in that: The bracket portion (10) is located at a side edge of the armature (3), and the through hole is also located at a side edge of the armature (3).

7. The magnetic tripping mechanism according to claim 1, characterized in that: The bottom of the yoke (2) is provided with a positioning plate (13) extending to both sides, and the inner wall of the base (1) is provided with a positioning groove (14) adapted to the positioning plate.

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