A contact support assembly for an ac contactor

Abstract

The utility model provides a kind of contact support assembly of alternating current contactor, comprising: support body, moving core shield, moving contact and elastic piece, the support body is equipped with mounting portion, the mounting portion is equipped with mounting groove, the moving core shield is buckled together with support body, the bottom of the mounting groove is equipped with fixing piece, the moving contact is installed on fixing piece, the elastic piece is detachably connected between the top of mounting groove and moving contact;Moving contact is not easy to loosen when being corresponding action in the closed or open circuit state of contactor, can prevent the occurrence of poor contact.

Description

Technical Field

[0001] This utility model relates to the field of contactor technology, and in particular to a contact support component for an AC contactor. Background Technology

[0002] In the field of electrical equipment, contactors are widely used in power switching and control circuits to indirectly control the on / off state of circuits. The contact support in a contactor is used to support and mount the moving contact. Most existing contact supports are integrated designs. When installing the moving contact and spring, the moving contact is prone to loosening, causing incomplete contact between the moving and stationary contacts when the contactor is closed. This leads to poor contact within the contactor's internal circuitry and ultimately affects the contactor's performance.

[0003] Therefore, it is necessary to provide a contact support component for an AC contactor to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a contact support assembly for an AC contactor, which prevents the moving contact from easily coming loose when the contactor is in a closed or open state and performs corresponding actions, thus preventing poor contact.

[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows: a contact support assembly for an AC contactor, comprising: a support body, a moving iron core cover, a moving contact, and an elastic element.

[0006] The support body is provided with a mounting part, and the mounting part has a mounting groove. The moving iron core cover is fastened together with the support body. The bottom of the mounting groove is provided with a fixing member. The moving contact is mounted on the fixing member. The elastic member is detachably connected between the top of the mounting groove and the moving contact.

[0007] Preferably, the support body includes a main body segment and two fastening segments connected to the main body segment, the mounting part is provided on the main body segment, and each of the two fastening segments is provided with a hook groove; the moving iron core cover includes a mounting segment and two locking segments connected to the mounting segment, the two locking segments are provided with hooks, and the hooks on the two locking segments are respectively fastened to the hook grooves on the two fastening segments.

[0008] Preferably, the moving contact has an arc-drawing angle on its top surface, a mounting hole at the bottom of the arc-drawing angle, and a rectangular first protrusion on its moving contact, which is held in the mounting hole.

[0009] Preferably, both sides of the middle section of the arc-drawing angle extend upward to form a limiting flange; the top of the mounting groove is provided with a second protrusion, one end of the elastic element is sleeved on the second protrusion, and the other end of the elastic element is received between the limiting flanges on both sides of the arc-drawing angle.

[0010] Preferably, the bottom surface at both ends of the moving contact is provided with moving contacts.

[0011] Preferably, the arc-leading angle is further provided with two through holes, which are spaced apart at both ends of the mounting hole. The moving contact is provided with two mounting posts, which are held in the two through holes.

[0012] Compared with existing technologies, the advantages are that the moving contact is pre-installed on the fixed part, making it less likely to loosen. When the elastic element is installed between the top of the mounting groove and the moving contact, an elastic force is applied to the moving contact, making it less likely to loosen when the contactor is in the closed or open state and makes corresponding actions, thus preventing poor contact.

[0013] Other features and advantages of this invention will be set forth in the following description, and in part will be apparent from the description, or may be learned by practice of the invention. The features and advantages of this invention may be realized and obtained by means of the elements and combinations specifically pointed out in the appended claims. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the contact support assembly for the AC contactor provided by this utility model.

[0016] Figure 2 for Figure 1 The diagram shows a partial structural schematic of the contact support assembly of the AC contactor.

[0017] Figure 3 for Figure 1 The diagram shows the structure of the moving iron core cover of the contact support assembly of the AC contactor.

[0018] Figure 4 for Figure 1 The diagram shows the structure of the moving contact.

[0019] Figure 5for Figure 1 The diagram shows the installation of the moving contact and the fixing component.

[0020] Reference numerals: 1. Support body; 10. Mounting part; 101. Mounting groove; 102. Fixing element; 103. First protrusion; 104. Second protrusion; 105. Mounting post; 11. Main body section; 12. Fastening section; 13. Hook groove; 2. Moving iron core cover; 21. Mounting section; 22. Locking section; 23. Hook; 3. Moving contact; 30. Arc-drawing angle; 31. Mounting hole; 32. Limiting flange; 33. Moving contact; 34. Through hole; 4. Elastic element. Detailed Implementation

[0021] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are merely for explaining the present utility model and are not intended to limit the present utility model.

[0022] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0024] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. Additionally, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0025] Please see Figures 1 to 5This utility model proposes a contact support assembly for an AC contactor, comprising: a support body 1, a moving iron core cover 2, a moving contact 3, and an elastic element 4.

[0026] The support body 1 is provided with a mounting part 10, and the mounting part 10 has a mounting groove 101. The moving iron core cover 2 is fastened together with the support body 1. A fixing member 102 is provided at the bottom of the mounting groove 101. The moving contact 3 is mounted on the fixing member 102. The elastic member 4 is detachably connected between the top of the mounting groove 101 and the moving contact 3. It should be noted that the elastic member 4 is a spring.

[0027] Thus, by pre-installing the moving contact 3 on the fixing member 102, it is not easy for the moving contact 3 to loosen. When the elastic member 4 is installed between the top of the mounting groove 101 and the moving contact 3, it will apply a spring force (i.e. the force when the spring is stretched) to the moving contact 3, so that the moving contact 3 will not easily loosen when the contactor is in the closed or open state and makes corresponding actions (the moving contact 3 is in contact with the stationary contact, or the moving contact 3 is separated from the stationary contact).

[0028] In a preferred embodiment, the support body 1 is U-shaped and includes a main body section 11 and two snap-fit ​​sections 12 vertically connected to the main body section 11. The mounting part 10 is disposed on the main body section 11, and each of the two snap-fit ​​sections 12 is provided with a hook groove 13. The moving iron core cover 2 is inverted U-shaped and includes a mounting section 21 and two locking sections 22 vertically connected to the mounting section 21. Each locking section 22 is provided with a hook 23, which respectively engages with the hook groove 13 on the two snap-fit ​​sections 12. This facilitates the installation of the contactor's iron core between the moving iron core cover 2 and the support body 1, making installation convenient.

[0029] In a preferred embodiment, the moving contact 3 has an arc-starting angle 30 on its top surface, and a rectangular mounting hole 31 is formed at the bottom of the arc-starting angle 30. The moving contact 3 has a rectangular first protrusion 103, which is engaged within the mounting hole 31. This facilitates the installation and removal of the moving contact 3 and the arc-starting angle 30 from the fixing member 102. The arc-starting angle 30 is used to direct the electric arc generated between the moving contact 3 and the stationary contact towards the arc-extinguishing chamber of the contactor, protecting the internal components of the contactor.

[0030] In a preferred embodiment, both sides of the middle section of the arc-starting angle 30 extend upward to form arc-shaped limiting flanges 32; the top of the mounting groove 101 is provided with a second protrusion 104, one end of the elastic member 4 is sleeved on the second protrusion 104, and the other end of the elastic member 4 is received between the limiting flanges 32 on both sides of the arc-starting angle 30. This facilitates the detachable connection of the elastic member 4 between the top of the mounting groove 101 and the arc-starting angle 30.

[0031] In a preferred embodiment, the bottom surface at both ends of the moving contact 3 is provided with moving contact points 33, which facilitates the moving contact points 33 on the moving contact 3 to contact the stationary contact when the support body 1 moves downward, and the moving contact points 33 on the moving contact 3 to separate from the stationary contact when the support body 1 moves upward.

[0032] In a preferred embodiment, the arc-starting angle 30 is further provided with two through holes 34, which are spaced apart at both ends of the mounting hole 31. The moving contact 3 is provided with two mounting posts 105, which are engaged within the two through holes 34. In this way, the moving contact 3 and the arc-starting angle 30 can be positioned and installed. Thus, when the contactor coil is energized and generates a magnetic field, the moving iron core 5 of the contactor moves, causing the support body 1 to move downward, so that the moving contact 33 of the moving contact 3 contacts the stationary contact that is pre-installed directly below the moving contact 3. At this time, the contactor is in a closed state.

[0033] When the contactor coil is de-energized and the magnetic field generated by the coil disappears, the support body 1 moves upward to separate the moving contact 33 on the moving contact 3 from the stationary contact. At this time, the circuit of the contactor is in an open state.

[0034] During this process, the moving contact 3 is pre-installed on the fixing member 102, making it difficult for the moving contact 3 to loosen. When the elastic member 4 is installed between the top of the mounting groove 101 and the arc angle 30, it will apply a spring force (i.e. the force when the spring is stretched) to the moving contact 3, so that the moving contact 3 is not easy to loosen when the contactor is in the closed or open state and makes corresponding actions (the moving contact 33 of the moving contact 3 is in contact with the stationary contact, or the moving contact 3 is separated from the stationary contact), which can prevent poor contact from occurring.

[0035] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A contact support assembly for an AC contactor, characterized in that, include: Supports the main body (1), the moving iron core cover (2), the moving contact (3), and the elastic element (4). The support body (1) is provided with a mounting part (10), and the mounting part (10) is provided with a mounting groove (101). The moving iron core cover (2) is fastened together with the support body (1). The bottom of the mounting groove (101) is provided with a fixing member (102). The moving contact (3) is installed on the fixing member (102). The elastic member (4) is detachably connected between the top of the mounting groove (101) and the moving contact (3).

2. The contact support assembly of the AC contactor as described in claim 1, characterized in that, The support body (1) includes a main body section (11) and two fastening sections (12) connected to the main body section (11). The mounting part (10) is provided on the main body section (11), and the two fastening sections (12) are provided with hook grooves (13). The moving iron core cover (2) includes a mounting section (21) and two locking sections (22) connected to the mounting section (21). The two locking sections (22) are provided with hooks (23), and the hooks (23) on the two locking sections (22) are respectively fastened to the hook grooves (13) on the two fastening sections (12).

3. The contact support assembly of the AC contactor as described in claim 1, characterized in that, The moving contact (3) has an arc-drawing angle (30) on its top surface and an installation hole (31) at the bottom of the arc-drawing angle (30). The moving contact (3) has a rectangular first protrusion (103) which is held in the installation hole (31).

4. The contact support assembly of the AC contactor as described in claim 3, characterized in that, Both sides of the middle section of the arc-drawing angle (30) extend upward to form a limiting flange (32); the top of the mounting groove (101) is provided with a second protrusion (104), one end of the elastic member (4) is sleeved on the second protrusion (104), and the other end of the elastic member (4) is received between the limiting flanges (32) on both sides of the arc-drawing angle (30).

5. The contact support assembly of the AC contactor as described in claim 4, characterized in that, The bottom surface at both ends of the moving contact (3) is provided with moving contacts (33).

6. The contact support assembly of the AC contactor as described in claim 4, characterized in that, Two through holes (34) are also provided on the arc-leading angle (30). The two through holes (34) are distributed at intervals at both ends of the mounting hole (31). Two mounting posts (105) are provided on the moving contact (3). The two mounting posts (105) are held in the two through holes (34).

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