Alternating current contactor power supply voltage control device

Abstract

The utility model discloses a power supply voltage control device of an alternating current contactor, a protection mechanism comprises a rotating cover, the inner wall of one end of the rotating cover is fixedly connected with a connecting shaft, the outer surface of the rotating cover is fixedly connected with a plurality of dust shielding plates, and the dust shielding plates are arranged at equal intervals along the length direction of the rotating cover. Wire fixing plates are fixedly connected to the positions, close to the dust shielding plates, of the bottom of the rotating cover, an arc-shaped groove is formed in the middle of the side, close to the connecting shaft, of each wire fixing plate, a gasket is fixedly connected to the inner side of each arc-shaped groove, and a movable block is movably connected to the end, away from the connecting shaft, of the rotating cover. A clamping block is fixedly connected to the side, facing the wire fixing plate, of the bottom end of the movable block, a rotating cover is arranged above the alternating current contactor, and when the rotating cover is closed, a dust shielding plate on the side edge of the rotating cover shields a wiring end below the rotating cover, so that external sundries are prevented from making contact with the end of an external cable. And a wire fixing plate arranged at the bottom of the rotating cover can limit one side of the external cable.

Description

Technical Field

[0001] The utility model relates to the technical field of AC contactors, in particular to a power supply voltage control device for an AC contactor. Background Art

[0002] AC contactor is an electrical control device used to control electrical loads in AC circuits. AC contactors are often used in applications that require control of larger currents or voltages, such as motor starting, lighting control, heating systems, etc. They are widely used in industrial, commercial and household applications to provide reliable switching control for circuits.

[0003] The AC contactor in the prior art is usually provided with a plurality of wiring terminals, but when the end of the external cable is connected to the terminal, the end of the cable is exposed to the outside, which may cause safety risks due to the lack of protection. Therefore, an AC contactor power supply voltage control device is proposed to solve the above problem. Utility Model Content

[0004] The technical problem to be solved by the utility model is as follows: when the end of an external cable is connected to a terminal, the end of the cable is exposed to the outside, which may cause safety risks due to the lack of protection.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] An AC contactor power supply voltage control device comprises a device body, wherein a protective mechanism is arranged on the top of the device body;

[0007] Also includes:

[0008] Wherein, the protection mechanism comprises a rotating cover, an inner wall of one end of the rotating cover is fixedly connected with a connecting shaft, an outer surface of the rotating cover is fixedly connected with a plurality of dust shielding plates, and the plurality of dust shielding plates are arranged equidistantly along the length direction of the rotating cover;

[0009] Wherein, a fixing plate is fixedly connected to the bottom of the rotating cover and near each dust shielding plate, and an arc-shaped groove is opened in the middle of one side of the fixing plate near the connecting shaft, and a gasket is fixedly connected to the inner side of the arc-shaped groove;

[0010] Wherein, the rotating cover is movably connected with a movable block at one end away from the connecting shaft, and a clamping block is fixedly connected with the bottom end of the movable block and one side facing the wire fixing plate.

[0011] As a further solution of the utility model: one end of the top of the movable block is fixedly connected to a lever, the top of the movable block and the inside of the rotating cover is fixedly connected to a guide rod, the outer sliding sleeve of the guide rod is provided with a sleeve rod, the outer wall of the sleeve rod is fixedly connected to a spring, and the other end of the spring is located on the outside of the guide rod and fixedly connected to the inner wall of the movable block.

[0012] As a further solution of the utility model: the device body includes an AC contactor, one side of the top of the AC contactor is rotatably connected to the connecting shaft, and a wiring terminal is fixedly installed on the top of the AC contactor and below the dust shield plate, and the top of the wiring terminal is movably connected with a fixing stud.

[0013] As a further solution of the utility model: the top of the AC contactor is movably connected to the rotating cover and the movable block, and one end of the side wall of the AC contactor is engaged and connected to the clamping block.

[0014] As a further solution of the utility model: a rotating rod is rotatably connected to the middle of the outer wall of the AC contactor, and one end of the rotating rod passes through the AC contactor and is fixedly connected to a knob.

[0015] As a further solution of the utility model: a slide groove is opened on the outer wall of the AC contactor and located below each terminal, the inner wall of each slide groove is slidably connected with a slider, the front of the slider is fixedly connected with an extrusion plate, the side of the extrusion plate is movably connected to the wire fixing plate, and the bottom of each extrusion plate is fixedly connected with a connecting sleeve.

[0016] As a further solution of the utility model: threads are arranged on the outer surface of the rotating rod and below each terminal, and the outer wall of the threads is threadedly sleeved with the inner wall of the connecting sleeve.

[0017] Beneficial effects of the utility model:

[0018] (1) The utility model provides a rotating cover above the AC contactor. When the rotating cover is closed, the dust shield on the side of the rotating cover shields the wiring terminal below, which can effectively prevent external debris from contacting the wiring terminal and the end of the external cable. In addition, the wire fixing plate provided at the bottom of the rotating cover can limit one side of the external cable.

[0019] (2) A rotating rod is arranged on the outer side of the AC contactor, and a thread is arranged on the outer side of the rotating rod. When the rotating rod rotates, the thread pushes the connecting sleeve and drives the extrusion plate to approach the wire fixing plate. The extrusion plate cooperates with the wire fixing plate to clamp and fix the external cable connected to the terminal, thereby preventing the external cable from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the utility model after the rotating cover is closed;

[0023] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of region A;

[0024] Figure 4 It is a schematic diagram of the overall structure of the protection mechanism in the utility model;

[0025] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of area B.

[0026] In the figure: 1. Device body; 101. AC contactor; 102. Knob; 103. Rotating rod; 104. Thread; 105. Connecting sleeve; 106. Extrusion plate; 107. Sliding block; 108. Terminal; 109. Fixing stud; 110. Slide groove; 2. Protective mechanism; 201. Rotating cover; 202. Connecting shaft; 203. Dust shielding plate; 204. Wire fixing plate; 205. Arc groove; 206. Gasket; 207. Movable block; 208. Push rod; 209. Block; 210. Sleeve rod; 211. Guide rod; 212. Spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-5As shown, an AC contactor power supply voltage control device includes a device body 1, and a protective mechanism 2 is arranged on the top of the device body 1; it also includes: wherein the protective mechanism 2 includes a rotating cover 201, and the inner wall of one end of the rotating cover 201 is fixedly connected to a connecting shaft 202, and the outer surface of the rotating cover 201 is fixedly connected to a plurality of dust shielding plates 203, and the plurality of dust shielding plates 203 are equidistantly arranged along the length direction of the rotating cover 201; wherein a fixed wire plate 204 is fixedly connected to the bottom of the rotating cover 201 and close to each dust shielding plate 203, and the fixed wire plate 204 is provided with an arc groove 205 in the middle of a side close to the connecting shaft 202, and a gasket 206 is fixedly connected to the inner side of the arc groove 205; wherein a movable block 207 is movably connected to the end of the rotating cover 201 away from the connecting shaft 202, and a clamping block 209 is fixedly connected to the bottom end of the movable block 207 and to the side facing the fixed wire plate 204, as shown in FIG. Figure 4 As shown, the gasket 206 is made of silicone, and the gasket 206 is used as a buffer between the arc groove 205 and the external cable to prevent the external cable from being clamped too tightly and thus causing damage;

[0029] A lever 208 is fixedly connected to one end of the top of the movable block 207, a guide rod 211 is fixedly connected to the top of the movable block 207 and located inside the rotating cover 201, a sleeve rod 210 is slidably sleeved on the outer side of the guide rod 211, a spring 212 is fixedly connected to the outer wall of the sleeve rod 210, and the other end of the spring 212 is located outside the guide rod 211 and fixedly connected to the inner wall of the movable block 207. Figure 4-Figure 5 As shown, the spring 212 pulls the movable block 207 back;

[0030] The device body 1 includes an AC contactor 101, one side of the top of the AC contactor 101 is rotatably connected to the connecting shaft 202, and a terminal 108 is fixedly installed at the top of the AC contactor 101 and below the dust shield 203, and a fixed stud 109 is movably connected to the top of the terminal 108. The top of the AC contactor 101 is movably connected to the rotating cover 201 and the movable block 207, and one end of the side wall of the AC contactor 101 is engaged with the clamping block 209. The middle of the outer wall of the AC contactor 101 A rotating rod 103 is rotatably connected, one end of the rotating rod 103 passes through the AC contactor 101 and is fixedly connected to the knob 102. A sliding groove 110 is provided on the outer wall of the AC contactor 101 and below each terminal 108. A slider 107 is slidably connected to the inner wall of each sliding groove 110. An extrusion plate 106 is fixedly connected to the front of the slider 107. The side of the extrusion plate 106 is movably connected to the fixed wire plate 204, and the bottom of each extrusion plate 106 is fixedly connected to a connecting sleeve 105. Figure 1-Figure 3 As shown, the slide groove 110 limits the moving direction of the slider 107, and the length direction of the slide groove 110 is consistent with the length direction of the rotating rod 103;

[0031] The outer surface of the rotating rod 103 is provided with a thread 104 below each terminal 108, and the outer wall of the thread 104 is threadedly sleeved with the inner wall of the connecting sleeve 105. Figure 3 As shown, when the rotating rod 103 rotates, the thread 104 on the surface pushes the connecting sleeve 105 to move.

[0032] The working principle of this utility model:

[0033] After the external cable is hooked onto the terminal 108, the cable end is fixed by tightening the fixing stud 109, and then the rotating cover 201 is turned over, and the lever 208 is pushed outward, the guide rod 211 extends from the inner side of the sleeve rod 210, and the spring 212 is stretched. After the rotating cover 201 is closed above the AC contactor 101, the lever 208 is released, and the spring 212 releases the elastic potential energy to pull the movable block 207 to reset. The movable block 207 contacts the AC contactor 101 and is inserted into the blind hole preset on the surface of the AC contactor 101 through the clamping block 209. At this time, the rotating cover 201 is fixed to the AC contactor 101;

[0034] Then, the rotating knob 102 drives the rotating rod 103 to rotate, and the thread 104 pushes the connecting sleeve 105 to move, and the extrusion plate 106 moves toward the fixing plate 204 under the limitation of the slider 107 and the slide groove 110, so that the distance between the extrusion plate 106 and the fixing plate 204 is shortened, and the external cable is fixed inside the arc groove 205.

[0035] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An AC contactor power supply voltage control device, comprising a device body (1), wherein a protective mechanism (2) is arranged on the top of the device body (1); It is characterized in that Also includes: The protection mechanism (2) comprises a rotating cover (201), an inner wall at one end of the rotating cover (201) is fixedly connected to a connecting shaft (202), an outer surface of the rotating cover (201) is fixedly connected to a plurality of dust shielding plates (203), and the plurality of dust shielding plates (203) are arranged equidistantly along the length direction of the rotating cover (201); A fixing plate (204) is fixedly connected to the bottom of the rotating cover (201) and close to each dust shielding plate (203); an arc-shaped groove (205) is provided in the middle of the fixing plate (204) on one side close to the connecting shaft (202); a gasket (206) is fixedly connected to the inner side of the arc-shaped groove (205); The rotating cover (201) is movably connected to a movable block (207) at one end away from the connecting shaft (202), and a clamping block (209) is fixedly connected to the bottom end of the movable block (207) and the side facing the wire fixing plate (204).

2. The AC contactor power supply voltage control device according to claim 1, characterized in that: One end of the top of the movable block (207) is fixedly connected to a lever (208); the top of the movable block (207) and located inside the rotating cover (201) is fixedly connected to a guide rod (211); a sleeve rod (210) is slidably sleeved on the outside of the guide rod (211); a spring (212) is fixedly connected to the outer wall of the sleeve rod (210); the other end of the spring (212) is located outside the guide rod (211) and fixedly connected to the inner wall of the movable block (207).

3. The AC contactor power supply voltage control device according to claim 1, characterized in that: The device body (1) includes an AC contactor (101), one side of the top of the AC contactor (101) is rotatably connected to the connecting shaft (202), and a terminal (108) is fixedly installed on the top of the AC contactor (101) and located below the dust shield (203), and a fixing stud (109) is movably connected to the top of the terminal (108).

4. The AC contactor power supply voltage control device according to claim 3, characterized in that: The top of the AC contactor (101) is movably connected to the rotating cover (201) and the movable block (207), and one end of the side wall of the AC contactor (101) is engaged and connected to the clamping block (209).

5. The AC contactor power supply voltage control device according to claim 3, characterized in that: A rotating rod (103) is rotatably connected to the middle portion of the outer wall of the AC contactor (101); one end of the rotating rod (103) passes through the AC contactor (101) and is fixedly connected to a knob (102).

6. The AC contactor power supply voltage control device according to claim 3, characterized in that: A slide groove (110) is provided on the outer wall of the AC contactor (101) and below each terminal (108); a slider (107) is slidably connected to the inner wall of each slide groove (110); an extrusion plate (106) is fixedly connected to the front of the slider (107); a side of the extrusion plate (106) is movably connected to a wire fixing plate (204); and a connecting sleeve (105) is fixedly connected to the bottom of each extrusion plate (106).

7. The AC contactor power supply voltage control device according to claim 5, characterized in that: The outer surface of the rotating rod (103) is provided with a thread (104) below each wiring terminal (108), and the outer wall of the thread (104) is threadedly sleeved with the inner wall of the connecting sleeve (105).

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