Contact support for a contactor

Abstract

The utility model provides a kind of contactor's contact support, comprising: support body, guide frame, movable contact and elastic part, the support body is extended and is formed with guide portion, the guide frame is detachably installed at guide portion, the movable contact is connected on guide frame, the elastic part is installed in guide frame, and the elastic part is connected on the bottom of guide portion, and located in the guide frame, the support body is moved down and drives elastic part to abut on guide frame, can make movable contact on guide frame and the static contact of contactor contact;When movable contact and static contact are contacted in contactor inside by elastic part, buffering force can be generated, avoid the force when movable contact and static contact are contacted, further avoid static contact deformation damage, again influence the service life of contactor.

Description

Technical Field

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

[0002] Contactors are widely used in low-voltage circuits and are essential industrial products that are safe to use, easy to control, and widely deployed. They are widely used for switching and controlling power circuits. Contactors use contacts to open and close circuits and generally include a coil, iron core, contacts, housing, and accessories (springs, short-circuit rings, terminals, etc.). However, the moving contacts in existing contactors are rigidly installed inside the contactor (fixed, stable connection), which means there is no buffering force when the moving contact contacts the stationary contact. This easily leads to deformation and damage of the stationary contact, thus affecting the service life of the contactor.

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

[0004] The purpose of this invention is to provide a contact support for a contactor. An elastic element inside the contactor can generate a buffering force when the moving contact and the stationary contact come into contact, thereby preventing excessive force when the moving contact and the stationary contact come into contact, thus preventing deformation and damage to the stationary contact and affecting the service life of the contactor.

[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows: a contactor contact support includes a support body, a guide frame, a moving contact, and an elastic element. A guide portion extends from the support body, the guide frame is detachably installed at the guide portion, the moving contact is connected to the guide frame, and the elastic element is installed inside the guide frame and connected to the bottom of the guide portion, and located inside the guide frame. When the support body moves downward, it causes the elastic element to abut against the guide frame, enabling the moving contact on the guide frame to contact the stationary contact.

[0006] Preferably, the support body includes an installation section and two fastening sections connected to the installation section, the guide portion is located at the installation section, and the fastening sections are provided with hook grooves.

[0007] Preferably, the bottom of the guide portion is provided with a mounting protrusion, and one end of the elastic element is fixedly sleeved on the mounting protrusion.

[0008] Preferably, the moving contact includes a moving contact bridge, and the bottom of the moving contact bridge is provided with a moving contact point.

[0009] Preferably, the moving contact bridge is provided with an outlet strip, and a guide plate is connected to the outlet strip.

[0010] Preferably, the moving contact bridge is provided with an upward-curved arc angle.

[0011] Preferably, the guide portion has a strip-shaped hole, and the guide frame includes a mounting portion and an insertion portion connected to the mounting portion, wherein the insertion portion is detachably installed in the strip-shaped hole.

[0012] Compared with the prior art, the advantages are that the contact support of the contactor of this utility model makes it convenient to pre-install the moving contact, and the elastic element inside the contactor can generate a buffering force when the moving contact and the stationary contact come into contact, so as to avoid excessive force when the moving contact and the stationary contact come into contact, thereby avoiding deformation and damage of the stationary contact and affecting the service life of the contactor.

[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 structure of the contactor provided by this utility model.

[0016] Figure 2 for Figure 1 The diagram shows a partial structural diagram of the contactor's contact support.

[0017] Figure 3 for Figure 2 The diagram shows a partial structural diagram of the contactor's contact support.

[0018] Reference numerals: 1. Support body; 10. Guide section; 11. Mounting section; 12. Fastening section; 13. Hook groove; 14. Mounting protrusion; 15. Strip hole; 2. Guide frame; 21. Mounting section; 22. Insertion section; 3. Moving contact; 31. Moving contact bridge; 32. Moving contact point; 33. Lead-out strip; 34. Guide plate; 35. Lead-out angle; 4. Elastic element; 5. Stationary contact; 51. Stationary contact point. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] Please see Figures 1 to 3 This utility model proposes a contactor contact support to facilitate the installation of the moving contact 3 of the contactor. It includes: a support body 1, a guide frame 2, a moving contact 3, and an elastic element 4. A guide portion 10 extends from the support body 1. The guide frame 2 is detachably installed at the guide portion 10. The moving contact 3 is fixedly connected to the guide frame 2. The elastic element 4 is installed inside the guide frame 2 and is connected to the bottom of the guide portion 10 and located inside the guide frame 2. When the support body 1 moves downward, it drives the elastic element 4 to abut against the guide frame 2, so that the moving contact 3 on the guide frame 2 can contact the stationary contact 5 of the contactor.

[0024] It should be noted that the elastic element 4 is a spring; there are three moving contacts 3, three elastic elements 4, and three stationary contacts 5. The three stationary contacts 5 are respectively connected to the U phase, V phase, and W phase of the three-phase power supply. When the support body 1 moves downward, it drives the three elastic elements 4 to abut against the three guide frames 2 respectively, so that the moving contacts 3 on the three guide frames 2 can contact the stationary contacts 5 respectively.

[0025] Furthermore, in practical applications, moving contacts and stationary contacts can be combined in various ways, such as single groups, two groups, three groups, four groups, five groups, etc., which can be combined and used independently according to the actual scenario.

[0026] Thus, when the contactor coil is energized, the coil generates a magnetic field. The moving iron core of the contactor moves, causing the support body 1 to move downwards, which in turn causes the elastic element 4 to abut against the guide frame 2. This gradually brings the moving contact 3 on the guide frame 2 into contact with the stationary contact 5, which is pre-installed directly below the moving contact 3. At this time, the contactor is in the closed state. During this process, the elastic element 4 can generate a buffering force when the moving contact 3 contacts the stationary contact 5, preventing the force from being too large when the moving contact 3 contacts the stationary contact 5.

[0027] When the contactor coil is de-energized, the magnetic field generated by the coil disappears, the support body 1 moves upward, causing the elastic element 4 to separate from the guide frame 2, and the guide part 10 on the support body 1 causes the moving contact 3 on the guide frame 2 to separate from the stationary contact 5. At this time, the circuit of the contactor is in the open state.

[0028] In a preferred embodiment, the support body 1 is U-shaped and includes an installation section 11 and two snap-fit ​​sections 12 vertically connected to the installation section 11. The guide portion 10 is located at the installation section 11, and the snap-fit ​​sections 12 are provided with hook grooves 13. By providing hook grooves 13, the hooks on the moving iron core assembly can easily hook into the hook grooves 13, facilitating installation.

[0029] In a preferred embodiment, the bottom of the guide portion 10 is provided with a mounting protrusion 14, and one end of the elastic member 4 is fixedly sleeved on the mounting protrusion 14.

[0030] In a preferred embodiment, the moving contact 3 includes a moving contact bridge 31, and a moving contact 32 is provided at the bottom of the moving contact bridge 31. When the moving contact 32 contacts the stationary contact 51 on the stationary contact 5, the contactor is in a closed state.

[0031] In a preferred embodiment, the moving contact bridge 31 is provided with a lead-out strip 33, and a guide plate 34 is connected to the lead-out strip 33. An external wire is electrically connected to the guide plate 34. When the contactor is in the closed state, the guide plate 34 and the coil are energized to draw the current from the contactor; when the contactor is in the open state, the guide plate 34 and the coil are de-energized. It should be noted that in this embodiment, the lead-out strip 33 is made of a soft metal sheet (such as a soft copper sheet). When the moving contact bridge 31 moves up and down, the lead-out strip 33 bends and stretches with the movement of the moving contact bridge 31.

[0032] It should be noted that in this embodiment, a moving contact 32 is provided at the bottom of one end of the moving contact bridge 31, which contacts the stationary contact 51 on the stationary contact bridge 5. At the other end of the moving contact bridge 31, an outgoing strip 33 is provided and electrically connected to the guide plate 34, which is a single-contact contact method (i.e., a single moving contact and a single stationary contact).

[0033] In a preferred embodiment, the moving contact bridge 31 is provided with an arc-inducing angle 35, which directs the electric arc generated between the moving contact and the stationary contact to the arc-extinguishing grid of the contactor, protecting the internal components of the contactor. It should be noted that the moving contact bridge 31, the arc-inducing angle 35, and the moving contact 32 are fixedly installed using fasteners (e.g., rivets) or welding.

[0034] It should be noted that the stationary contact 5 is fixedly installed inside the insulating housing of the contactor. The stationary contact 5 is provided with an arc-inducing plate, and the guide plate 34 is fixedly installed inside the insulating housing of the contactor.

[0035] In a preferred embodiment, the guide portion 10 has a strip-shaped hole 15, the guide frame 2 is U-shaped and includes a mounting portion 21 and an insertion portion 22 vertically connected to the mounting portion 21. The insertion portion 22 is detachably installed in the strip-shaped hole 15. One end of the elastic member 4 is fixedly sleeved on the mounting protrusion 14, and the other end of the elastic member 4 can abut against the mounting portion 21 of the guide frame 2.

[0036] In operation, when the contactor coil is energized, it generates a magnetic field. The moving iron core of the contactor moves, causing the support body 1 to move downwards, which in turn causes the elastic element 4 to abut against the guide frame 2. This gradually brings the moving contact 3 on the guide frame 2 into contact with the stationary contact 5, which is pre-installed directly below the moving contact 3. At this point, the contactor is in a closed state. During this process, the elastic element 4 generates a buffering force when the moving contact 3 contacts the stationary contact 5, preventing excessive force and thus avoiding deformation or damage to the stationary contact 5, which would affect the service life of the contactor.

[0037] 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 contactor contact support, characterized in that, include: The support body (1), guide frame (2), moving contact (3) and elastic element (4) are provided. A guide portion (10) extends from the support body (1). The guide frame (2) is detachably installed at the guide portion (10). The moving contact (3) is connected to the guide frame (2). The elastic element (4) is installed inside the guide frame (2) and is connected to the bottom of the guide portion (10) and located inside the guide frame (2). When the support body (1) moves downward, it drives the elastic element (4) to abut against the guide frame (2), so that the moving contact (3) on the guide frame (2) can contact the stationary contact (5) of the contactor.

2. The contactor contact support as described in claim 1, characterized in that, The support body (1) includes an installation section (11) and two fastening sections (12) connected to the installation section (11). The guide part (10) is located at the installation section (11), and the fastening section (12) is provided with a hook groove (13).

3. The contactor contact support as described in claim 1, characterized in that, The bottom of the guide part (10) is provided with a mounting protrusion (14), and one end of the elastic element (4) is fixedly sleeved on the mounting protrusion (14).

4. The contactor support of the contactor as described in claim 1, characterized in that, The moving contact (3) includes a moving contact bridge (31), and a moving contact point (32) is provided at the bottom of the moving contact bridge (31).

5. The contactor contact support as described in claim 4, characterized in that, The moving contact bridge (31) is provided with an outlet strip (33), and a guide plate (34) is connected to the outlet strip (33).

6. The contactor contact support as described in claim 4, characterized in that, The moving contact bridge (31) is provided with an upward-curving arc angle (35).

7. The contactor contact support as described in claim 1, characterized in that, The guide part (10) has a strip hole (15). The guide frame (2) includes a mounting part (21) and an insertion part (22) connected to the mounting part (21). The insertion part (22) is detachably installed in the strip hole (15).

Images