Novel terminal wiring protection structure of contactor

Abstract

The utility model discloses a novel terminal wiring protection structure of a contactor, which relates to the technical field of terminal protection and comprises an upper cover, an upper shell is arranged at the bottom of the upper cover, a connecting seat is arranged at the bottom of the upper shell, a mounting base is arranged at the bottom of the connecting seat, and a terminal positioning component is arranged on the side surface of the upper shell. According to the utility model, the terminal cover and the terminal fixing seat are arranged to realize fixation and protection of the terminal, the fixing bolt and the connecting nut are arranged to realize positioning of the terminal and connection of the terminal and the connecting line, and the fixing bolt is matched with the connecting nut to realize locking, so that the situation that the use stability is influenced due to sliding in the use process is prevented, and the service life of the terminal is prolonged. And the side surface of the terminal cover is provided with the convex block, so that the creepage distance and the electric clearance between the terminals are improved, the electric clearance and the creepage distance are relatively large, the short circuit between the wiring terminals is effectively prevented, and the wiring safety is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of terminal protection, in particular to a novel terminal wiring protection structure of a contactor. Background Art

[0002] A contactor is an automated control device that uses a coil to generate a magnetic field to close contacts to control the load. The contactor is usually equipped with terminals for connecting wires. Traditional terminals include a contact plate and ordinary screws connected to the contact plate. Terminals with this structure are not convenient for connecting bare wires.

[0003] The existing terminals do not provide ideal protection for the connection between the wires and the terminals, which may cause the terminals and the connecting wires to separate due to external stretching during use, thereby affecting the use of the contactor. Therefore, it is necessary to provide a new terminal wiring protection structure for the contactor to solve the problem. Utility Model Content

[0004] The main purpose of the utility model is to provide a new terminal wiring protection structure of a contactor, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A new terminal wiring protection structure of a contactor comprises an upper cover, an upper shell is arranged at the bottom of the upper cover, a connecting seat is arranged at the bottom of the upper shell, a mounting base is arranged at the bottom of the connecting seat, and a terminal positioning assembly is arranged on the side of the upper shell;

[0007] The terminal positioning assembly comprises a terminal cover, a side of the terminal cover is provided with a protrusion, a bottom of the terminal cover is provided with a terminal fixing seat, a fixing bolt is provided in the middle of the terminal cover, a connecting nut is provided at the bottom of the fixing bolt, and a side of the terminal cover is provided with a protrusion;

[0008] The side of the upper shell is provided with a mounting slot, and a static contact group is arranged inside the mounting slot, and a movable contact group is arranged on the side of the static contact group.

[0009] Preferably, the terminal cover is inserted into the top of the terminal fixing seat, and a bolt groove is opened in the middle of the terminal cover, the bolt groove in the middle of the terminal cover is connected to the interior of the terminal fixing seat, a nut placement groove is opened on the bottom inside of the terminal fixing seat, and the bolt groove in the middle of the terminal cover and the nut placement groove are connected to each other.

[0010] Preferably, the fixing bolt is connected in the middle of the terminal cover, and the fixing bolt is connected to the connecting nut through a threaded connection, the connecting nut is clamped inside the nut placement groove, there are three groups of connecting nuts, which are evenly distributed inside the terminal fixing seat, and the connecting nuts and fixing bolts are arranged correspondingly.

[0011] Preferably, the bottom of the connecting nut contacts the bottom of the static contact group, and one end of the static contact group is inserted into the interior of the terminal fixing seat, the fixing bolt passes through the middle of one end of the static contact group and is connected to the connecting nut, and the side of the static contact group away from the connecting nut contacts the movable contact group.

[0012] Preferably, a mounting groove is provided on the side of the upper shell, and an arc-shaped protrusion is slidably connected to the inside of the mounting groove. There are multiple mounting grooves, which are evenly distributed on both sides of the upper shell. A positioning protrusion is fixedly connected to the inner wall of the mounting groove, and an arc-shaped protrusion is fixedly connected to the top of the static contact group, and the positioning protrusion is clamped together with the arc-shaped protrusion.

[0013] Preferably, the movable contact group is inserted in the middle of the upper shell, a T-shaped connecting plate is fixedly connected to the outer wall of the upper shell, the T-shaped connecting plate is clamped in the middle of the terminal fixing seat, a limiting slot is provided on the side of the terminal fixing seat close to the upper shell, and the T-shaped connecting plate is inserted in the inside of the limiting slot, and a heat dissipation hole is provided on the side of the terminal fixing seat.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, the terminal cover and the terminal fixing seat are provided to fix and protect the terminal, the fixing bolts and the connecting nuts are provided to position the terminal and connect the terminal and the connecting wire, and the fixing bolts cooperate with the connecting nuts to achieve locking to prevent sliding during use and affect the stability of use. A bump is provided on the side of the terminal cover to increase the creepage distance and electrical gap between the terminals. The larger electrical gap and creepage distance effectively prevent short circuits between the wiring terminals and greatly improve the wiring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a first-view stereogram of the entire device of the utility model;

[0017] Figure 2 It is a second perspective stereogram of the entire device of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the overall development of the device of the utility model;

[0019] Figure 4 This utility model Figure 3The enlarged structural diagram at A in the middle;

[0020] Figure 5 It is a structural schematic diagram of the upper shell of the utility model.

[0021] In the figure: 1. Upper cover; 2. Mounting base; 3. Terminal cover; 4. Terminal fixing seat; 5. Fixing bolt; 6. Connecting nut; 7. Nut placement slot; 8. Heat dissipation hole; 9. Bump; 10. Terminal positioning assembly; 11. Static contact group; 12. Arc-shaped bump; 13. Movable contact group; 14. Upper shell; 15. Mounting slot; 16. Positioning convex plate; 17. T-shaped connecting plate; 18. Limiting slot; 19. Connecting seat. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] See also Figure 1-Figure 5 As shown, a new terminal wiring protection structure of a contactor includes an upper cover 1, an upper shell 14 is arranged at the bottom of the upper cover 1, a connecting seat 19 is arranged at the bottom of the upper shell 14, a mounting base 2 is arranged at the bottom of the connecting seat 19, and a terminal positioning assembly 10 is arranged on the side of the upper shell 14;

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 5As shown, the terminal positioning assembly 10 includes a terminal cover 3, a protrusion 9 is provided on the side of the terminal cover 3, a terminal fixing seat 4 is provided at the bottom of the terminal cover 3, and a fixing bolt 5 is provided in the middle of the terminal cover 3, and a connecting nut 6 is provided at the bottom of the fixing bolt 5. The terminal cover 3 is provided with a protrusion 9 on the side, the terminal cover 3 is inserted into the top of the terminal fixing seat 4, and a bolt groove is opened in the middle of the terminal cover 3, the bolt groove in the middle of the terminal cover 3 is connected to the inside of the terminal fixing seat 4, a nut placement groove 7 is opened on the bottom of the terminal fixing seat 4, and the bolt groove in the middle of the terminal cover 3 is connected to the nut placement groove 7. The fixing bolt 5 is connected to the middle of the terminal cover 3, and the fixing bolt 5 is connected to the connecting nut 6 by threading, and the connecting nut 6 is clamped in the inside of the nut placement groove 7. There are three groups of connecting nuts 6, which are evenly distributed in the inside of the terminal fixing seat 4, and the connecting nuts 6 and The fixing bolt 5 is arranged correspondingly, the bottom of the connecting nut 6 contacts the bottom of the static contact group 11, and one end of the static contact group 11 is inserted into the inside of the terminal fixing seat 4, the fixing bolt 5 passes through the middle of one end of the static contact group 11 and is connected to the connecting nut 6, and the side of the static contact group 11 away from the connecting nut 6 contacts the movable contact group 13, and the terminal cover 3 and the terminal fixing seat 4 are arranged to fix and protect the terminal, and the terminal is positioned and connected to the connecting wire by the fixing bolt 5 and the connecting nut 6, and the fixing bolt 5 cooperates with the connecting nut 6 to achieve locking to prevent sliding during use and affect the stability of use. The side of the terminal cover 3 is provided with a bump 9 to improve the creepage distance and electrical gap between the terminals. The larger electrical gap and creepage distance effectively prevent the short circuit between the wiring terminals, and greatly improve the wiring safety;

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a mounting slot 15 is provided on the side of the upper shell 14, and a static contact group 11 is provided inside the mounting slot 15, and a movable contact group 13 is provided on the side of the static contact group 11. A mounting slot 15 is provided on the side of the upper shell 14, and an arc-shaped protrusion 12 is slidably connected to the inside of the mounting slot 15. There are multiple mounting slots 15, which are evenly distributed on both sides of the upper shell 14. A positioning convex plate 16 is fixedly connected to the inner wall of the mounting slot 15. The static contact group 11 is provided with a movable contact group 13. An arc-shaped protrusion 12 is fixedly connected to the top, and the positioning protrusion 16 is clamped together with the arc-shaped protrusion 12, the movable contact group 13 is inserted in the middle of the upper shell 14, and a T-shaped connecting plate 17 is fixedly connected to the outer wall of the upper shell 14, and the T-shaped connecting plate 17 is clamped in the middle of the terminal fixing seat 4. A limiting slot 18 is provided on one side of the terminal fixing seat 4 close to the upper shell 14, and the T-shaped connecting plate 17 is inserted into the inside of the limiting slot 18, and a heat dissipation hole 8 is provided on the side of the terminal fixing seat 4.

[0026] It should be noted that the utility model is a new type of terminal wiring protection structure for a contactor. When in use, the connection seat 19 and the movable contact group 13 are sequentially connected to the top of the mounting base 2 by bolts, and then the upper shell 14 is plugged into the outside of the movable contact group 13 and connected by bolts, and then the upper cover 1 is clamped on the top of the upper shell 14 and the movable contact group 13, and positioned by bolts, and the static contact group 11 is sequentially slidably connected to the mounting slot on the side of the upper shell 14 15, when the side of the static contact group 11 contacts the movable contact group 13, the arc-shaped protrusion 12 on the top of the static contact group 11 contacts the positioning protrusions 16 on both sides of the mounting groove 15, and the arc-shaped protrusion 12 on the top of the static contact group 11 and the positioning protrusions 16 on both sides of the mounting groove 15 are interference-fitted to prevent the static contact group 11 from being pulled out by external force when locking the wire, and then the end of the arc static contact group 11 away from the movable contact group 13 is inserted in the middle of the terminal fixing seat 4, The static contact group 11 is located above the connecting nut 6 and the nut placement groove 7, the fixing bolt 5 is passed through the static contact group 11 and connected with the connecting nut 6, and the fixing bolt 5 is rotated to lock the connecting nut 6. The bottom of the static contact group 9 is supported by the terminal fixing seat 3, which improves the force strength when the locking bolt 6 is tightened. The connecting nut 6 is installed in the nut placement groove 7 inside the terminal fixing seat 4, and the nut is fixed. When the bolt 6 is tightened, it is prevented from loosening. The side of the terminal cover 3 is provided with a bump 9, which improves the creepage distance and electrical gap between the terminals. The larger electrical gap and creepage distance effectively prevent the short circuit between the wiring terminals, greatly improve the wiring safety, and the static contact group 11 and the movable contact group 13 are continuously connected and disconnected, and the arcing generates huge heat; after the terminal cover 3 and the terminal fixing seat 4 are assembled, the heat dissipation hole 8 is added to the structure to play the role of exhaust and heat dissipation, and effectively reduce the heat between the contacts without affecting the insulation between the phases.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A novel terminal connection protection structure of a contactor, comprising an upper cover (1), characterized in that: An upper shell (14) is disposed at the bottom of the upper cover (1), a connecting seat (19) is disposed at the bottom of the upper shell (14), a mounting base (2) is disposed at the bottom of the connecting seat (19), and a terminal positioning assembly (10) is disposed on the side of the upper shell (14); The terminal positioning assembly (10) comprises a terminal cover (3), a convex block (9) is arranged on the side of the terminal cover (3), a terminal fixing seat (4) is arranged on the bottom of the terminal cover (3), a fixing bolt (5) is arranged in the middle of the terminal cover (3), a connecting nut (6) is arranged on the bottom of the fixing bolt (5), and a convex block (9) is arranged on the side of the terminal cover (3); A mounting slot (15) is provided on the side of the upper shell (14), and a stationary contact group (11) is provided inside the mounting slot (15), and a movable contact group (13) is provided on the side of the stationary contact group (11).

2. The novel terminal connection protection structure of a contactor according to claim 1 is characterized in that: The terminal cover (3) is plugged into the top of the terminal fixing seat (4), and a bolt groove is provided in the middle of the terminal cover (3), the bolt groove in the middle of the terminal cover (3) is connected to the inside of the terminal fixing seat (4), a nut placement groove (7) is provided on the inside of the bottom of the terminal fixing seat (4), and the bolt groove in the middle of the terminal cover (3) and the nut placement groove (7) are connected to each other.

3. The novel terminal connection protection structure of a contactor according to claim 2 is characterized in that: The fixing bolt (5) is connected in the middle of the terminal cover (3), and the fixing bolt (5) is connected to the connecting nut (6) by means of a thread, and the connecting nut (6) is clamped in the interior of the nut placement groove (7), and there are three groups of the connecting nuts (6), which are evenly distributed in the interior of the terminal fixing seat (4), and the connecting nuts (6) and the fixing bolts (5) are arranged correspondingly.

4. The novel terminal connection protection structure of a contactor according to claim 3 is characterized in that: The bottom of the connecting nut (6) contacts the bottom of the static contact group (11), and one end of the static contact group (11) is inserted into the interior of the terminal fixing seat (4). The fixing bolt (5) passes through the middle of one end of the static contact group (11) and is connected to the connecting nut (6). The side of the static contact group (11) away from the connecting nut (6) contacts the movable contact group (13).

5. The novel terminal connection protection structure of a contactor according to claim 1 is characterized in that: A mounting slot (15) is provided on the side of the upper shell (14), and the arc-shaped protrusion (12) is slidably connected inside the mounting slot (15). There are a plurality of mounting slots (15) which are evenly distributed on both sides of the upper shell (14). A positioning convex plate (16) is fixedly connected to the inner wall of the mounting slot (15). The top of the static contact group (11) is fixedly connected to the arc-shaped protrusion (12), and the positioning convex plate (16) is clamped together with the arc-shaped protrusion (12).

6. The novel terminal connection protection structure of a contactor according to claim 1, characterized in that: The movable contact group (13) is inserted in the middle of the upper shell (14); a T-shaped connecting plate (17) is fixedly connected to the outer wall of the upper shell (14); the T-shaped connecting plate (17) is clamped in the middle of the terminal fixing seat (4); a limiting card slot (18) is provided on a side of the terminal fixing seat (4) close to the upper shell (14); the T-shaped connecting plate (17) is inserted in the inside of the limiting card slot (18); and a heat dissipation hole (8) is provided on the side of the terminal fixing seat (4).

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