Contactor action part structure convenient to assemble

Abstract

The utility model relates to a contactor action part structure convenient to assemble, and relates to the field of contactors, the contactor action part structure comprises a bottom plate, an arc isolating cover, a movable rod, a microswitch, an auxiliary synchronous support and a movable magnetic core, the movable rod is sleeved with an insulating ring, a spring seat and a movable rod sleeve, the insulating ring, the spring seat and the movable rod sleeve are of a cylinder structure, and the movable rod penetrates through the auxiliary synchronous support and is sleeved with the microswitch. The movable magnetic core is fixed to one end of the movable rod through threads, the movable rod sleeve penetrates through the bottom plate and is in sliding connection with the bottom plate, one end of the movable rod sleeve abuts against the movable magnetic core, the other end of the movable rod sleeve abuts against the auxiliary synchronous support, and the spring seat and the movable rod sleeve jointly clamp the auxiliary synchronous support. And the other end of the spring abuts against the spring seat. The auxiliary synchronous support has the effect of improving the efficiency of installing the auxiliary synchronous support on the movable rod.

Description

Technical Field

[0001] This application relates to the field of contactors, and more particularly to a contactor actuating part structure that is easy to assemble. Background Technology

[0002] A contactor is a widely used switching device that uses electromagnetic fields to control the opening and closing of circuits. An electromagnetic contactor contains a moving magnetic core and a moving rod. When energized, the coil generates a magnetic field that attracts the moving magnetic core, which in turn drives the moving rod to slide, thus actuating the contactor automatically.

[0003] The relevant electromagnetic contactor includes a base plate, an arc-blocking cover, a moving rod, a micro switch, an auxiliary synchronizing bracket, and a moving magnetic core. The moving rod passes through the base plate and is slidably connected to it. The arc-blocking cover is mounted on the base plate, the micro switch is mounted inside the arc-blocking cover, the auxiliary synchronizing bracket is fixed in the middle of the moving rod, and the moving magnetic core is fixed at the end of the moving rod. When the moving magnetic core is subjected to magnetic force, it drives the moving rod and the auxiliary synchronizing bracket to slide. At this time, the auxiliary synchronizing bracket can contact or disengage from the micro switch, enabling the contactor to operate automatically.

[0004] The aforementioned technical solutions have the following drawbacks: the auxiliary synchronization bracket is fixed to the moving rod by bonding or welding, which makes the production and assembly process cumbersome and the production efficiency low. Utility Model Content

[0005] To improve the efficiency of mounting the auxiliary synchronization bracket on the moving rod, this application provides a contactor actuating part structure that is easy to assemble.

[0006] The contactor operating part structure provided in this application adopts the following technical solution:

[0007] A contactor actuating part structure that is easy to assemble includes a base plate, an arc-damping cover, a moving rod, a micro switch, an auxiliary synchronizing bracket, and a moving magnetic core. The moving rod is fitted with an insulating ring, a spring seat, and a moving rod sleeve. The upper insulating ring, spring seat, and moving rod sleeve are cylindrical structures. The moving rod passes through the auxiliary synchronizing bracket. The moving magnetic core is fixed to one end of the moving rod by threads. The moving rod sleeve passes through the base plate and is slidably connected to the base plate. One end of the moving rod sleeve abuts against the moving magnetic core, and the other end abuts against the auxiliary synchronizing bracket. The spring seat and the moving rod sleeve together clamp the auxiliary synchronizing bracket. A post is fixed to the end of the moving rod away from the moving magnetic core. One end of the upper insulating ring abuts against the post, and the other end abuts against the spring seat.

[0008] By adopting the above technical solution, by installing an insulating ring, a spring seat, and a moving rod sleeve on the moving rod, the moving rod sleeve and spring seat can clamp the auxiliary synchronization bracket. A column head and a moving magnetic core are respectively set at both ends of the moving rod. The moving magnetic core abuts against the moving rod sleeve, and the column head abuts against the upper insulating ring. Thus, the upper insulating ring, spring seat, moving rod sleeve, and auxiliary synchronization bracket can all be installed on the moving rod and interlocked with each other. During the installation process, only the moving magnetic core needs to be threaded onto the moving rod, which improves the assembly efficiency and provides better connection stability of the auxiliary synchronization bracket on the moving rod.

[0009] Optionally, a moving electrode plate is provided on the moving rod, and an upper insulating ring passes through the moving electrode plate.

[0010] By adopting the above technical solution, a moving electrode plate is set on the moving rod. When the moving rod moves, it can drive the moving electrode plate to move back and forth, so that the moving electrode plate can contact or detach from the stationary electrode. The moving electrode plate is snapped onto the moving rod by the valley bottom, and the assembly process is simple.

[0011] Optionally, the upper insulating ring is fitted with an overtravel spring, one end of which abuts against the moving electrode plate and the other end against the spring seat.

[0012] By adopting the above technical solution, an overtravel spring is installed on the outer sleeve of the upper insulating ring, so that the overtravel spring abuts against the moving electrode plate, thereby ensuring that the moving electrode plate is always locked at the convex circle of the upper insulating ring, making the position of the moving electrode plate relatively stable relative to the moving rod, and reducing the probability of the moving electrode plate sliding freely and accidentally touching the stationary electrode.

[0013] Optionally, the moving rod sleeve is provided with a reaction spring, one end of which abuts against the base plate and the other end of which abuts against the end face of the moving magnetic core.

[0014] By adopting the above technical solution, a reaction spring is set on the moving rod, so that the reaction spring abuts between the base plate and the moving magnetic core. When the moving magnetic core is subjected to a small magnetic force, the moving magnetic core is difficult to overcome the elastic force of the reaction spring and move, thereby reducing the probability of the auxiliary synchronous bracket accidentally touching the micro switch.

[0015] Optionally, the base plate has a first slot, and the moving magnetic core has a second slot, with the ends of the reaction spring respectively engaged in the first slot and the second slot.

[0016] By adopting the above technical solution, a slot one is opened on the base plate and a slot two is opened on the moving magnetic core, so that the reaction spring is locked in slot one and slot two, thereby keeping the reaction spring in a coaxial position relative to the moving rod, so that the moving magnetic core is subjected to a uniform reaction force, and the moving magnetic core has better operating accuracy. When the overcurrent is less than the predetermined value, the field strength of the electro-generated magnetic field is small, and the moving magnetic core is difficult to operate.

[0017] Optionally, a slot is provided on one end face of the spring seat, and the upper insulating ring is inserted into the slot, with the upper insulating ring slidably connected to the spring seat.

[0018] By adopting the above technical solution, and by making the spring seat and the upper insulating ring slide together, the spring seat and the upper insulating ring are supported by an overtravel spring. When the moving rod drives the auxiliary synchronous bracket to move, the auxiliary synchronous bracket is easy to get stuck on the base plate or the micro switch. At this time, the auxiliary synchronous bracket can slide relative to the moving rod, thereby reducing the probability that the base plate, the auxiliary synchronous bracket or the micro switch will be subjected to large forces and deformed and damaged.

[0019] Optionally, the arc-blocking cover is provided with a sliding groove, the length direction of which is parallel to the moving rod. The auxiliary synchronization bracket includes a connecting cylinder and a slider. The connecting cylinder is a cylindrical tube and is sleeved outside the moving rod. The slider is engaged in the sliding groove and contacts the micro switch.

[0020] By adopting the above technical solution, a groove is opened on the arc isolation cover to lock the slider, thereby allowing the slider to slide back and forth on the side of the micro switch's actuating spring, reducing the probability of the auxiliary synchronizing bracket rotating relative to the moving rod, and enabling the auxiliary synchronizing bracket to stably contact the micro switch.

[0021] Optionally, the upper insulating ring is provided with a surrounding cylinder at its end, and the column head is disposed inside the surrounding cylinder.

[0022] By adopting the above technical solution, by setting a surrounding cylinder at the end of the upper insulating ring, the column head can be placed inside the surrounding cylinder, thereby reducing the probability of conductive debris connecting the column head and the moving electrode plate.

[0023] In summary, the beneficial technical effects of this application are as follows:

[0024] 1. By installing an insulating ring, a spring seat, and a moving rod sleeve on the moving rod, the moving rod sleeve and spring seat can clamp the auxiliary synchronization bracket. A column head and a moving magnetic core are respectively set at both ends of the moving rod. The moving magnetic core abuts against the moving rod sleeve, and the column head abuts against the upper insulating ring. Thus, the upper insulating ring, spring seat, moving rod sleeve, and auxiliary synchronization bracket can all be installed on the moving rod and interlocked with each other. During the installation process, only the moving magnetic core needs to be threaded onto the moving rod, which improves the assembly efficiency and provides better connection stability of the auxiliary synchronization bracket on the moving rod.

[0025] 2. By installing an overtravel spring on the upper insulating ring, the overtravel spring abuts against the moving electrode plate, thereby ensuring that the moving electrode plate is always locked at the convex circle of the upper insulating ring, making the position of the moving electrode plate stable relative to the moving rod, and reducing the probability of the moving electrode plate sliding freely and accidentally touching the stationary electrode.

[0026] 3. By setting a reaction spring on the moving rod, the reaction spring abuts between the base plate and the moving magnetic core. When the moving magnetic core is subjected to a small magnetic force, the moving magnetic core is difficult to overcome the elastic force of the reaction spring and move, thereby reducing the probability of the auxiliary synchronous bracket accidentally touching the micro switch. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the moving rod in an embodiment of this application.

[0029] Figure 3 This is a cross-sectional view of the moving rod according to an embodiment of this application.

[0030] Figure 4 This is a schematic diagram of the arc-blocking shield according to an embodiment of this application.

[0031] Reference numerals in the attached diagram: 1. Base plate; 11. Slot 1; 2. Arc isolation cover; 21. Slide groove; 3. Moving rod; 30. Column head; 31. Upper insulating ring; 311. Enclosing cylinder; 32. Spring seat; 321. Slot; 322. Groove; 33. Moving rod sleeve; 4. Micro switch; 5. Auxiliary synchronous bracket; 51. Connecting cylinder; 52. Slider; 6. Moving magnetic core; 61. Slot 2; 7. Moving electrode plate; 8. Overtravel spring; 9. Reaction spring. Detailed Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] This application discloses a contactor operating part structure that is easy to assemble, referring to... Figure 1 , Figure 2 and Figure 3 The system includes a base plate 1, an arc-blocking cover 2, a moving rod 3, a micro switch 4, and an auxiliary synchronization bracket 5. The base plate 1 is a circular plate structure. The moving rod 3 passes through the center of the base plate 1 and is slidably connected to the base plate 1. The moving rod 3 is perpendicular to the base plate 1. The arc-blocking cover 2 is located on the upper side of the base plate 1. The micro switch 4 is installed inside the arc-blocking cover 2. The auxiliary synchronization bracket 5 is installed in the middle of the moving rod 3 and is located inside the arc-blocking cover 2. When the moving rod 3 slides relative to the base plate 1, the moving rod 3 can drive the auxiliary synchronization bracket 5 to slide, thereby causing the auxiliary synchronization bracket 5 to contact the actuating spring of the micro switch 4, causing the micro switch 4 to actuate.

[0034] Reference Figure 3 One end of the moving rod 3 is provided with a column head 30, and the other end is provided with a thread. The bottom end of the moving rod 3 is provided with a moving magnetic core 6. The moving magnetic core 6 is a cylindrical structure. The moving magnetic core 6 is sleeved on the end of the moving rod 3 and threadedly connected to the moving rod 3, which improves the ease of installation.

[0035] Reference Figure 1, Figure 2 and Figure 3 The moving rod 3 is fitted with an upper insulating ring 31, a spring seat 32, and a moving rod sleeve 33. All three are cylindrical structures. The upper insulating ring 31 and spring seat 32 are located on the upper side of the base plate 1, and the moving rod sleeve 33 penetrates the base plate 1 and is slidably connected to it. The upper end of the upper insulating ring 31 engages with the post head 30 on the moving rod 3, and the lower end connects to the spring seat 32. The spring seat 32 and the moving rod sleeve 33 together clamp the auxiliary synchronous support 5, and the lower end of the moving rod sleeve 33 engages with the moving magnetic core 6. Users sequentially place the upper insulating ring 31, spring seat 32, auxiliary synchronous support 5, and moving rod sleeve 33 onto the moving rod 3, and then install the moving magnetic core 6 at the lower end of the moving rod 3. This allows the auxiliary synchronous support 5 to be fixedly installed in the moving rod 3, thereby improving the installation efficiency of the auxiliary synchronous support 5 and reducing welding or bonding steps. The auxiliary synchronous support 5 and the moving rod 3 are fixed by engaging, providing excellent connection strength.

[0036] Reference Figure 3 A moving electrode plate 7 is provided on the moving rod 3. The moving electrode plate 7 is located on the side of the moving rod 3 near the column head 30. A convex circle is provided at the end of the upper insulating ring 31. The convex circle is stuck on the upper side of the moving electrode plate 7. An overtravel spring 8 is provided on the lower side of the moving electrode plate 7. The overtravel spring 8 is sleeved on the upper insulating ring 31. The upper end of the overtravel spring 8 abuts against the moving electrode plate 7, and the lower end abuts against the spring seat 32. The overtravel spring 8 is used to lift the moving electrode plate 7 so that the moving electrode plate 7 is always in contact with the convex circle of the upper insulating ring 31.

[0037] Reference Figure 3 A reaction spring 9 is fitted onto the moving rod 3. The reaction spring 9 is located below the base plate 1 and is fitted outside the moving rod sleeve 33. The upper end of the reaction spring 9 abuts against the base plate 1, and the lower end abuts against the moving magnetic core 6. When the moving rod 3 slides relative to the base plate 1, the moving magnetic core 6 moves relative to the base plate 1, at which time the reaction spring 9 is compressed. Only when the magnetic force on the moving magnetic core 6 in the electromagnetic field is greater than the elastic force applied by the reaction spring 9 can the moving rod 3 slide relative to the base plate 1. The reaction spring 9 serves to keep the moving rod 3 stationary on the base plate 1 in its natural state.

[0038] Reference Figure 3 and Figure 4 The auxiliary synchronization bracket 5 includes a connecting cylinder 51 and a slider 52. The connecting cylinder 51 is a cylindrical structure and is sleeved on the moving rod 3. The slider 52 is fixed on the connecting cylinder 51 and is used to contact the actuating spring of the micro switch 4. The arc-blocking cover 2 has a vertically opened groove 21. The slider 52 is stuck in the groove 21. The groove 21 has a limiting effect, which can reduce the probability of the auxiliary synchronization bracket 5 rotating on the moving rod 3, so that the slider 52 can always slide vertically and contact the micro switch 4.

[0039] Reference Figure 3 A slot 11 is formed at the center of the base plate 1, and a slot 61 is formed at the center of the moving magnetic core 6. Slots 11 and 61 are recessed grooves, and the ends of the reaction spring 9 are respectively engaged in slots 11 and 61. The lower end of the moving rod sleeve 33 is inserted into slot 61 and abuts against the moving magnetic core 6. A threaded adhesive layer is provided on the inner wall of the moving magnetic core 6, which bonds the moving rod 3 and the moving magnetic core 6, thereby improving the connection strength between the moving rod 3 and the moving magnetic core 6.

[0040] Reference Figure 3 An enclosing sleeve 311 is provided at the upper end of the upper insulating ring 31. When the upper insulating ring 31 is connected to the moving rod 3, the post head 30 is located in the enclosing sleeve 311, with the end face of the post head 30 inside the enclosing sleeve 311. The enclosing sleeve 311 serves to separate the post head 30. When the contactor as a whole leaks current, causing current to flow on the moving rod 3, it can reduce the probability of current flowing through the post head 30 to the moving electrode plate 7, thereby improving the overall safety of the contactor. The moving electrode plate 7 slides outside the upper insulating ring 31, thereby reducing the probability of the moving electrode plate 7 contacting and connecting with the moving rod 3, reducing the risk of leakage.

[0041] Reference Figure 3 A groove 322 is provided on the upper surface of the spring seat 32, and the bottom of the overtravel spring 8 is stuck in the groove 322. A slot 321 is provided on the upper end of the spring seat 32, and the slot 321 is located at the center of the spring seat 32. The lower end of the upper insulating ring 31 is inserted into the slot 321, and the upper insulating ring 31 is slidably connected to the spring seat 32. When the moving rod 3 falls through the moving magnetic core 6, the moving magnetic core 6 can drive the moving rod 3 to continue to slide down. At this time, the auxiliary synchronous bracket 5 is stuck on the base plate 1, and the spring seat 32 is stuck on the upper end of the auxiliary synchronous bracket 5. The auxiliary synchronous bracket 5 slides relative to the moving rod 3, and the moving rod 3 drives the upper insulating ring 31 to slide, so that the upper insulating ring 31 slides relative to the spring seat 32, thereby reducing the probability of damage to the internal structure of the contactor when the moving rod 3 has low movement accuracy.

[0042] The implementation principle of this application embodiment is as follows: by sliding the moving rod 3 on the base plate 1, the moving rod 3 can slide relative to the base plate 1 through the moving magnetic core 6. When the moving rod 3 slides, it drives the auxiliary synchronous bracket 5 and the moving electrode plate 7 to move, so that the auxiliary synchronous bracket 5 can touch the micro switch 4, and the moving electrode plate 7 can contact the stationary electrode. The process of installing the auxiliary synchronous bracket 5 and the moving electrode plate 7 is relatively simple, reducing welding or bonding steps. When snapped together, the auxiliary synchronous bracket 5 and the moving electrode plate 7 have better connection strength on the moving rod 3.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A contactor actuating part structure that is easy to assemble, characterized in that: The system includes a base plate (1), an arc-damping cover (2), a moving rod (3), a micro switch (4), an auxiliary synchronizing bracket (5), and a moving magnetic core (6). The moving rod (3) is fitted with an upper insulating ring (31), a spring seat (32), and a moving rod sleeve (33). The upper insulating ring (31), spring seat (32), and moving rod sleeve (33) are cylindrical structures. The moving rod (3) passes through the auxiliary synchronizing bracket (5). The moving magnetic core (6) is threaded to one end of the moving rod (3). The moving rod sleeve... (33) passes through the base plate (1) and slides to connect with the base plate (1). One end of the moving rod sleeve (33) abuts against the moving magnetic core (6), and the other end abuts against the auxiliary synchronous support (5). The spring seat (32) and the moving rod sleeve (33) together clamp the auxiliary synchronous support (5). The end of the moving rod (3) away from the moving magnetic core (6) is fixed with a column head (30). One end of the upper insulating ring (31) abuts against the column head (30), and the other end abuts against the spring seat (32).

2. The contactor actuating part structure according to claim 1, characterized in that: The moving rod (3) is provided with a moving electrode plate (7), and the upper insulating ring (31) passes through the moving electrode plate (7).

3. The contactor actuating part structure according to claim 2, characterized in that: The upper insulating ring (31) is fitted with an overtravel spring (8), one end of which abuts against the moving electrode plate (7), and the other end abuts against the spring seat (32).

4. The contactor actuating part structure according to claim 3, characterized in that: The moving rod sleeve (33) is fitted with a reaction spring (9), one end of which abuts against the base plate (1) and the other end abuts against the end face of the moving magnetic core (6).

5. The contactor actuating part structure according to claim 4, characterized in that: The base plate (1) has a slot 1 (11) and the moving magnetic core (6) has a slot 2 (61). The end of the reaction spring (9) is respectively engaged in the slot 1 (11) and the slot 2 (61).

6. The contactor actuating part structure according to claim 3, characterized in that: A slot (321) is provided on one end face of the spring seat (32), and the upper insulating ring (31) is inserted into the slot (321). The upper insulating ring (31) is slidably connected to the spring seat (32).

7. The contactor actuating part structure according to claim 1, characterized in that: The arc shield (2) is provided with a sliding groove (21). The length direction of the sliding groove (21) is parallel to the moving rod (3). The auxiliary synchronous support (5) includes a connecting cylinder (51) and a slider (52). The connecting cylinder (51) is a cylinder. The connecting cylinder (51) is sleeved outside the moving rod (3). The slider (52) is engaged in the sliding groove (21) and contacts the micro switch (4).

8. The contactor actuating part structure according to claim 1, characterized in that: The upper insulating ring (31) is provided with a surrounding tube (311) at its end, and the column head (30) is provided inside the surrounding tube (311).

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