Moisture-proof base of alternating current contactor

Abstract

The utility model belongs to the technical field of moisture-proof bases, and particularly relates to a moisture-proof base of an alternating current contactor, which comprises two bottom tables, clamping plates are arranged at two ends of the top surface of each bottom table, a hollow plate and a convex plate are respectively arranged at the top ends of one opposite side surfaces of the two bottom tables, and the hollow plate and the convex plate are matched with each other in an inserted manner. The upper side wall of the hollow plate is provided with a round hole located in the same vertical plane with the empty groove, a fastening bolt capable of penetrating through the empty groove to the position below the protruding plate is inserted into the round hole, fixing bolts are fixedly connected to the side faces of the two ends of the hollow plate, and rotating wheels are rotationally connected to the ends of the fixing bolts. The top end of the side, close to the hollow plate, of the clamping plate is provided with a moisture-proof agent inlet and outlet. According to the utility model, the alternating current contactor is fixed between the two bottom platforms through the sliding between the convex plate and the hollow plate and the clamping plate, so that the alternating current contactor is prevented from being directly contacted with the ground or a wall surface to be corroded and lost, and the service life of the alternating current contactor is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of moisture-proof bases, in particular to a moisture-proof base for an AC contactor. Background Art

[0002] An AC contactor is an automatic switching device that connects or disconnects the main circuit of a motor or load. It uses electromagnetic force to close or disconnect the switch. It is suitable for frequent operation and remote control of high-voltage circuits, and has low-voltage release protection. Generally, due to defects in some positions during use, the AC contactor is installed directly on the ground, which is likely to cause the bottom to become wet, resulting in faults such as damage to internal wires.

[0003] In the prior art, a utility model patent with the authorization publication number CN217933626U discloses an AC contactor, which includes: a contactor body; a protective cover assembly, the protective cover assembly is detachably fixedly connected to the contactor body; wherein the contactor body is provided with an input terminal and an output terminal, the input terminal and the output terminal are both located in the inner cavity of the protective cover assembly, the protective cover assembly includes a first protective cover and a second protective cover, the first protective cover and the second protective cover are buckled to form the protective cover assembly. The utility model solves the problem of exposed input terminals and output terminals of the AC contactor by arranging the input terminals and output terminals of the AC contactor in the inner cavity of the protective cover assembly formed by buckling the first protective cover and the second protective cover, so that the AC contactor has a safety protection function and eliminates the safety hazards of the AC contactor.

[0004] It improves the internal components of the AC contactor, making the AC contactor itself less prone to short circuits and leakage. However, the safety hazards of the AC contactor do not only come from the inside of the AC contactor itself, but the external environment also has a certain impact on the AC contactor. For example, excessive external moisture causes moisture to enter the AC contactor, thereby causing the AC contactor to fail. In summary, a moisture-proof base for an AC contactor is designed, which can change the size of the base to meet the needs of AC contactors of different sizes. Utility Model Content

[0005] In view of the above defects or deficiencies in the prior art, it is desirable to provide a moisture-proof base for an AC contactor.

[0006] The cam is an axially parallel plate with a groove for passing through the groove on the top of the groove, and a groove for passing through the groove on the bottom of the groove is formed on the cam surface. The groove is connected to the groove on the upper side of the groove and the groove is provided with a threaded nut. The cam surface is provided with a hollow plate and a convex plate for plugging and matching. The top of the convex plate is provided with an empty groove that passes through the upper and lower parts, and the upper side wall of the hollow plate is provided with a circular hole located on the same vertical plane as the empty groove. A fastening bolt that can pass through the empty groove to the bottom of the convex plate is inserted into the circular hole. A fixing nut is threadedly connected to the bottom end of the fastening bolt. A fixing rubber ring is sleeved on the outer side of the fastening bolt on both sides of the upper and lower parts of the convex plate. Slide rails are installed on the sides of both ends of the convex plate. The sides of both ends of the hollow plate are fixedly connected with fixing bolts. The fixing bolts pass through the side walls of the hollow plate and extend to the ends thereof and are rotatably connected with a rotating wheel. The slide rail is slidably sleeved on the outside of the rotating wheel on the same side. The interior of the splint is hollow, and an inlet and outlet for entering and exiting a moisture-proof agent is provided on the top of the splint close to the hollow plate.

[0007] According to the technical solution provided in the embodiment of the present application, the longitudinal cross-section of the base is in the shape of a right-angled trapezoid and the vertical surfaces of the two bases are opposite to each other. The bottom surface of the base is provided with a spiral pattern and the surface of the base is coated with waterproof glue, which increases the contact area with the ground and improves stability, while also increasing the friction with the ground. Finally, a layer of waterproof glue is applied to improve the corrosion resistance of the base.

[0008] According to the technical solution provided in the embodiment of the present application, the size of the top bolt cap of the fastening bolt is larger than the size of the circular hole, and the width of the empty groove is greater than or equal to the outer diameter of the fastening bolt and smaller than the outer diameter of the fixing nut, thereby avoiding the inability to clamp and the disadvantages of the solution.

[0009] According to the technical solution provided in the embodiment of the present application, a sliding opening for accommodating the fixing nut is opened at the bottom end of the hollow plate, and the width of the sliding opening is greater than the outer diameter of the fixing nut, thereby preventing the bolt from not fixing the hollow plate and the convex plate, thereby allowing the convex plate and the hollow plate to continue to maintain relative sliding.

[0010] According to the technical solution provided in the embodiment of the present application, the contact surface between the slide rail and the rotating wheel is concave, and the slide rail is in close contact with the inner wall of the hollow plate, thereby preventing the rotating wheel from falling off from the inside of the slide rail and causing sliding problems between the convex plate and the hollow plate.

[0011] According to the technical solution provided in the embodiment of the present application: two supporting feet are integrally formed on the circular ring wall on one side of the fixing nut, and the two supporting feet are symmetrically placed. Rubber sleeves are covered on the outside of the supporting feet, which improves the comfort of manually rotating the supporting feet and avoids scratching fingers by the supporting feet.

[0012] According to the technical solution provided in the embodiment of the present application, a protective cover is bonded to the surface of one side of the splint close to the hollow plate by glue, and the protective cover is made of rubber material. The surface of the protective cover is provided with a spiral pattern to prevent the splint from shrinking too quickly, which causes the AC contactor to be directly clamped and damaged by the splint. At the same time, the wavy pattern is provided to increase friction and prevent the AC contactor from slipping.

[0013] According to the technical solution provided in the embodiment of the present application, the hollow plate and the convex plate are both made of aluminum alloy, and the surfaces of the hollow plate and the convex plate are coated with waterproof glue to prevent excessive moisture from causing oxidation, thereby extending the service life of the convex plate and the hollow plate.

[0014] According to the technical solution provided in the embodiment of the present application, the convex plate is located on the inner side wall of the empty slot and is provided with a receiving groove, a retaining net is provided between the receiving groove and the empty slot, an opening is provided at the center of the retaining net, and a desiccant is placed inside the receiving groove to absorb moisture entering the empty slot.

[0015] In summary, the technical solution specifically discloses a moisture-proof base of an AC contactor, which includes two symmetrical and parallel bottom platforms; clamping plates are respectively installed at both ends of the top surface of the bottom platform, and a hollow plate is fixedly connected to the top of one of the bottom platform sides by bolts, and a convex plate is fixedly connected to the top of the other bottom platform side by bolts, and an empty groove is opened on the surface of the convex plate, and a circular hole is opened on the top surface of the hollow plate in the same vertical plane as the empty groove, and the circular hole is connected by a bolt and passes through the empty groove to the bottom of the convex plate, and the bottom end of the bolt is fixed by a fixing nut, and slide rails are installed on the sides of both ends of the convex plate, and the sides of both ends of the hollow plate are fixedly connected with fixing bolts, and the fixing bolts are passed through A rotating wheel is connected to the interior of the hollow plate through the outer wall of the hollow plate and the fixing bolt is rotatably connected. The rotating wheel is clamped in the interior of the slide rail. The rotating wheel and the slide rail maintain a sliding connection. The rotating wheel slides in the hollow plate through the convex plate, and is fixedly connected between the circular hole on the hollow plate and the empty groove on the convex plate by a bolt and a fixing nut. The fixing nut has a support foot. The support foot is rotated to loosen during the sliding process. After adjusting the angle, the support foot is rotated and fixed. This scheme also provides a protective cover on the clamping plate to prevent the AC contactor from being damaged during the clamping process, thereby obtaining a moisture-proof base that can be used for AC contactors of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the bottom surface of the hollow core plate of the utility model;

[0019] Figure 3 It is a vertically cut and enlarged structural schematic diagram of the fixing nut part in the utility model;

[0020] Figure 4 It is a vertically cut and enlarged structural diagram of the rotating wheel part of the utility model;

[0021] Figure 5 It is a structural schematic diagram of a fixing nut in the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the enlarged hollow groove part of the utility model;

[0023] Figure 7 It is a schematic diagram of the vertical section structure of the protrusion in the utility model.

[0024] In the figure: 1, base; 2, hollow plate; 21, round hole; 22, sliding mouth; 3, convex plate; 31, empty slot; 32, slide rail; 4, fixing bolt; 5, rotating wheel; 6, fixing rubber ring; 7, fixing nut; 71, support foot; 8, splint; 81, inlet and outlet; 9, protective cover; 10, fastening bolt. DETAILED DESCRIPTION

[0025] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] See also Figure 1-Figure 7A moisture-proof base of an AC contactor comprises two symmetrically arranged bases 1, both ends of the top surface of the base 1 are equipped with clamping plates 8, the tops of the opposite sides of the two bases 1 are respectively provided with a hollow plate 2 and a convex plate 3 that are plugged in, the top surface of the convex plate 3 is provided with an empty groove 31 that passes through from top to bottom, the upper side wall of the hollow plate 2 is provided with a circular hole 21 that is located on the same vertical plane as the empty groove 31, and a fastening bolt 10 that can pass through the empty groove 31 to the bottom of the convex plate 3 is inserted into the circular hole 21. Specifically, a sliding opening 22 is provided at the bottom end of the hollow plate 2, and the width of the sliding opening 22 is greater than the diameter of the fixing nut 7. The bottom end of the fastening bolt 10 is threadedly connected with the fixing nut 7, and the fastening bolt 1 0 The outer side of the convex plate 3 is sleeved with fixed rubber rings 6 on both sides of the upper and lower sides, and the sides of both ends of the convex plate 3 are installed with slide rails 32. The sides of both ends of the hollow plate 2 are fixedly connected with fixing bolts 4. The fixing bolts 4 pass through the side walls of the hollow plate 2 and extend to the ends thereof to be rotatably connected with the rotating wheels 5. The slide rails 32 are slidably sleeved on the outside of the rotating wheels 5 on the same side. Specifically, the contact surface between the slide rails 32 and the rotating wheels 5 is concave, and the slide rails 32 are tightly attached to the inner wall of the hollow plate 2 without contacting. The inside of the clamping plate 8 is hollow, and an inlet and outlet 81 for entering and exiting the moisture-proof agent is opened on the top of one side of the clamping plate 8 close to the hollow plate 2. Specifically, the moisture-proof agent adopts a bagged moisture-proof agent, which is convenient for replacement when the moisture-proof agent expires.

[0028] Specifically, the base 1 is prism-shaped as a whole, the bottom surface of the base 1 is provided with a spiral pattern and the surface of the base 1 is coated with waterproof glue, which increases the contact area with the ground and improves stability, while also increasing the friction with the ground. Finally, a layer of waterproof glue is applied to improve the corrosion resistance of the base 1.

[0029] Specifically, the size of the top bolt cap of the fastening bolt 10 is larger than the size of the circular hole 21 , and the width of the empty slot 31 is larger than or equal to the outer diameter of the fastening bolt 10 and smaller than the outer diameter of the fixing nut 7 .

[0030] Specifically, a sliding opening 22 for accommodating the fixing nut 7 is formed at the bottom end of the hollow plate 2 , and the width of the sliding opening 22 is greater than the outer diameter of the fixing nut 7 .

[0031] Specifically, two supporting feet 71 are integrally formed on the circular wall on one side of the fixing nut 7. The two supporting feet 71 are symmetrically placed, and rubber sleeves are sleeved on the outer sides of the supporting feet 71, which improves the comfort of manually rotating the supporting feet 71 and avoids the situation where the supporting feet 71 scratch the fingers.

[0032] In addition, a protective cover 9 is glued to the surface of the splint 8 by glue. The protective cover 9 is made of rubber material. The surface of the protective cover 9 is provided with a wavy pattern to prevent the splint 8 from shrinking too quickly, causing the AC contactor to be directly clamped and damaged by the splint 8. At the same time, the wavy pattern increases the friction to prevent the AC contactor from slipping.

[0033] Specifically, the hollow plate 2 and the convex plate 3 are both made of aluminum alloy, and the surfaces of the hollow plate 2 and the convex plate 3 are coated with waterproof glue to prevent excessive moisture from causing oxidation, thereby extending the service life of the convex plate 3 and the hollow plate 2.

[0034] Specifically, the head of the fastening bolt 10 is sunken into the circular hole 21 on the hollow plate 2, ensuring that the upper surface of the hollow plate 2 is smooth.

[0035] Specifically, the convex plate 3 is provided with a receiving groove 33 on the inner side wall of the empty groove 31 , a retaining net 34 is provided between the receiving groove 33 and the empty groove 31 , and an opening is provided at the center of the retaining net 34 . A desiccant is placed inside the receiving groove 33 to absorb moisture entering the empty groove 31 .

[0036] Working principle: Clamps 8 are respectively installed at both ends of the top surface of the base 1, and the top of one side of the base 1 is fixedly connected to a hollow plate 2 by bolts, and the top of the side of the other base 1 is fixedly connected to a convex plate 3 by bolts. The surface of the convex plate 3 is provided with an empty groove 31, and the top surface of the hollow plate 2 is provided with a circular hole 21 in the same vertical plane as the empty groove 31. The circular hole 21 is connected by bolts and passes through the empty groove 31 to the bottom of the convex plate 3. The bottom end of the bolt is fixed by a fixing nut 7. Slide rails 32 are installed on the sides of both ends of the convex plate 3, and the sides of both ends of the hollow plate 2 are fixedly connected with fixing bolts 4. The bolt 4 extends through the outer wall of the hollow plate 2 to the inside of the hollow plate 2 and the fixing bolt 4 is rotatably connected with a rotating wheel 5, which is clamped in the inside of the slide rail 32. The rotating wheel 5 and the slide rail 32 maintain a sliding connection. The convex plate 3 slides through the rotating wheel 5 in the hollow plate 2, and is fixedly connected between the circular hole 21 on the hollow plate 2 and the empty groove 31 on the convex plate 3 by a bolt and a fixing nut 7. The fixing nut 7 has a support leg 71. During the sliding process, the support leg 71 is rotated to loosen, and the support leg 71 is rotated and fixed after adjusting the angle. Finally, the AC contactor is fixed by the clamping plate 8.

[0037] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) to form a technical solution.

Claims

1. A moisture-proof base for an AC contactor, characterized in that: The invention comprises two symmetrically arranged bases (1), both ends of the top surface of the bases (1) are provided with clamping plates (8), the top ends of the opposite sides of the two bases (1) are provided with hollow plates (2) and convex plates (3) respectively, the top surface of the convex plates (3) is provided with a hollow groove (31) which passes through from top to bottom, the upper side wall of the hollow plates (2) is provided with a circular hole (21) which is located on the same vertical plane as the hollow groove (31), and a fastening bolt (10) which can pass through the hollow groove (31) to the bottom of the convex plates (3) is inserted into the circular hole (21). The bottom end of the fastening bolt (10) is threadedly connected with a fixing nut (7), and the outer side of the fastening bolt (10) is sleeved with a fixing rubber ring (6) on both upper and lower sides of the convex plate (3). The side surfaces of both ends of the convex plate (3) are installed with slide rails (32). The side surfaces of both ends of the hollow plate (2) are fixedly connected with fixing bolts (4), and the fixing bolts (4) pass through the side wall of the hollow plate (2) and extend to the end thereof to be rotatably connected with a rotating wheel (5), and the slide rail (32) is slidably sleeved on the outside of the rotating wheel (5) on the same side.

2. The moisture-proof base of the AC contactor according to claim 1, characterized in that: The longitudinal cross-section of the base (1) is in the shape of a right-angled trapezoid and the vertical surfaces of the two bases (1) are opposite to each other. The bottom surface of the base (1) is provided with a spiral pattern and the surface of the base (1) is coated with waterproof glue. The interior of the splint (8) is hollow. An inlet and outlet (81) for taking in and placing a moisture-proofing agent is provided at the top of one side of the splint (8) close to the hollow plate (2).

3. The moisture-proof base of the AC contactor according to claim 1, characterized in that: The size of the top bolt cap of the fastening bolt (10) is smaller than or equal to the size of the circular hole (21), the width of the empty slot (31) is greater than or equal to the outer diameter of the fastening bolt (10) and smaller than the outer diameter of the fixing nut (7), and the width of the empty slot (31) is smaller than the outer diameter of the top bolt cap of the fastening bolt (10).

4. The moisture-proof base of the AC contactor according to claim 1, characterized in that: The bottom end of the hollow plate (2) is provided with a sliding opening (22) for accommodating the fixing nut (7), and the width of the sliding opening (22) is greater than or equal to the outer diameter of the fixing nut (7).

5. The moisture-proof base of the AC contactor according to claim 1, characterized in that: The contact surface between the slide rail (32) and the rotating wheel (5) is concave, and the slide rail (32) is in close contact with the inner wall of the hollow plate (2).

6. The moisture-proof base of the AC contactor according to claim 1, characterized in that: Two supporting feet (71) are integrally formed on a circular wall on one side of the fixing nut (7) away from the convex plate (3), the two supporting feet (71) are symmetrically arranged, and the outer sides of the supporting feet (71) are covered with rubber sleeves.

7. The moisture-proof base of the AC contactor according to claim 1, characterized in that: A protective sleeve (9) is bonded to the surface of one side of the clamping plate (8) close to the hollow plate (2) by glue, and the protective sleeve (9) is made of rubber material, and a spiral pattern is provided on the surface of the protective sleeve (9).

8. The moisture-proof base of the AC contactor according to claim 1, characterized in that: The hollow plate (2) and the convex plate (3) are both made of aluminum alloy, and the surfaces of the hollow plate (2) and the convex plate (3) are coated with waterproof glue.

9. The moisture-proof base of the AC contactor according to claim 1, characterized in that: The convex plate (3) is provided with a receiving groove (33) on the inner side wall of the empty groove (31), a retaining net (34) is provided between the receiving groove (33) and the empty groove (31), a hollow opening is provided at the center of the retaining net (34), and a moisture-proof agent is placed inside the receiving groove (33).

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