Electrical fireproof current-limiting protector

Abstract

The utility model belongs to the technical field of electrical equipment, and particularly relates to an electrical fireproof current-limiting protector, which comprises a quick wiring assembly, a current-conducting plate of the quick wiring assembly is fixedly connected onto an outer cover through a screw, and the outer cover is arranged at the position of a wiring terminal on a protector body. A metal insertion rod arranged on the conductive plate is inserted into the wiring terminal and is electrically connected with a conductor of the wiring terminal, a threading hole is formed in a placement seat clamped on the conductive plate, the threading hole is located under a clamping plate on the conductive plate, and a stop lever arranged on the clamping plate abuts against a pushing block at one end of the button. According to the utility model, the outer cover is used for stably installing the rapid wiring assembly at the wiring terminal part and is matched with the wiring terminal for use, a connector capable of rapidly disassembling and assembling the lead is formed on the wiring terminal, the whole lead operation can be completed by pressing the button with one hand and disassembling and assembling the lead with the other hand, the structure is simple, the operation is convenient, and the cost is low. And the dismounting operation of the wire can be quickly completed, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to an electrical fire-proof current-limiting protector. Background Art

[0002] With the growing demand for electricity and the continuous increase in electrical equipment, in the process of electricity use, in order to prevent electric shock and fire accidents caused by defects in the electrical equipment itself or improper use, current limiting protectors must be installed in the circuit to effectively prevent heating and even electrical fires caused by overcurrent in the circuit.

[0003] A current limiter is a device used to limit the current in a circuit. It can limit the fault short-circuit current and improve the stability of the power grid. An ideal current limiter has no effect on the normal operation of the power grid, but can limit the short-circuit current to a value close to the rated current in the event of a fault. Commonly used current limiters are superconducting current limiters, which utilize the physical properties of the transition between the superconducting state and the normal state of a superconductor. When the line is operating normally, the superconductor exhibits zero impedance or extremely low impedance, and does not cause any adverse effects on power transmission. When a line fails and the current passing through the superconductor exceeds a certain value, the superconductor will instantly change to a normal state, generating an appropriate impedance to achieve current limiting. When the faulty line is disconnected or the fault disappears, the current limiter automatically resets.

[0004] However, during the installation of the existing current limiting protector, when the terminal is connected to the wire, the wire needs to be fixed by the screws on the terminal to ensure the stable connection of the wire, which is cumbersome and complicated to operate and not convenient for quick disassembly and assembly. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides an electrical fire-proof current-limiting protector, which solves the problem that the operation of the wiring terminal is cumbersome and complicated when connecting the wires, and is not convenient for quick disassembly and assembly.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0009] An electrical fire-proof current-limiting protector includes a quick wiring assembly, a conductive plate of the quick wiring assembly is fixedly connected to an outer cover by screws, the outer cover is placed at the terminal position on the protector body, and a metal plug rod arranged on the conductive plate is inserted into the terminal and electrically connected to the conductor of the terminal, a mounting seat clamped on the conductive plate is provided with a threading hole, the threading hole is located directly below a clamping plate on the conductive plate, and a blocking rod arranged on the clamping plate abuts against a pushing block at one end of a button, and the button is slidably connected in a sleeve arranged on the mounting seat.

[0010] Furthermore, the conductive plate and the clamp are fixedly connected by a metal connecting plate, and one side of the clamp holding the wire is provided with evenly distributed anti-slip convex grooves, and the metal connecting plate is provided with a notch for deformation at one end of the clamp, and the lower end of the conductive plate is plugged into the plug-in strip provided on the mounting seat, and a reset spring is provided in the internal cavity of the sleeve on the mounting seat, and the reset spring is sleeved on the push rod between the button and the push block, one end of the reset spring abuts against the button, and the other end abuts against the inner wall of the sleeve, and the push rod slides through the through hole provided on the sleeve, and the push block is located outside the sleeve.

[0011] Furthermore, the outer cover is detachably connected to the outer shell at the connection terminal position on the protector body.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides an electrical fire-proof current-limiting protector, which has the following beneficial effects:

[0014] The utility model uses an outer cover to stably install the quick wiring assembly at the wiring terminal position, and is used in conjunction with the wiring terminal to form a connector on the wiring terminal that can quickly disassemble and assemble the wire. The entire wire operation only requires one hand to press a button, and the other hand to disassemble and assemble the wire. The utility model has a simple structure and is easy to operate, and is convenient for quickly completing the wire disassembly and assembly operation, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the quick connection assembly and the outer cover in the utility model;

[0017] Figure 3 It is an exploded view of the quick connection assembly in the utility model.

[0018] In the figure: 1. Protector body; 2. Quick wiring assembly; 201. Conductive plate; 2011. Metal plug rod; 2012. Clamp; 2013. Metal connecting plate; 2014. Stop rod; 202. Placement seat; 2021. Insertion strip; 2022. Threading hole; 2023. Sleeve; 203. Button; 2031. Push block; 2032. Push rod; 204. Reset spring; 3. Outer cover. DETAILED DESCRIPTION

[0019] 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 in 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.

[0020] Example

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the utility model proposes: an electrical fire-proof current-limiting protector, including a quick wiring assembly 2, a conductive plate 201 of the quick wiring assembly 2 is fixedly connected to the outer cover 3 by screws, so that the conductive plate 201 can be stably installed on the outer cover 3, and a stable connection between the entire quick wiring assembly 2 and the outer cover 3 can be achieved, so that the two can be stably used together, and the outer cover 3 is placed at the terminal position on the protector body 1, and the quick wiring assembly 2 is stably installed at the terminal position, so as to achieve a quick connection between the wire and the terminal, and the metal plug rod 2011 set on the conductive plate 201 is inserted into the terminal and electrically connected to the conductor of the terminal, so that the quick wiring assembly 2 and the terminal are stably electrically connected together, ensuring a stable and effective connection between the wire and the terminal, and the conductive plate 201 is clamped A threading hole 2022 is provided on the mounting seat 202, which is convenient for smoothly passing the wire and electrically connecting it to the conductive plate 201, so that the wire can be stably and smoothly connected. The threading hole 2022 is located directly below the clamping plate 2012 on the conductive plate 201, which is convenient for clamping and fixing the wire end to achieve a stable connection between the wire and the conductive plate 201, and the blocking rod 2014 arranged on the clamping plate 2012 abuts against the pushing block 2031 at one end of the button 203, and the button 203 is slidably connected to the sleeve 2023 arranged on the mounting seat 202, so that the button 203 is pressed during use to drive the pushing block 2031 to push the blocking rod 2014, so that the two clamping plates 2012 are separated, so that the wire can be smoothly inserted between the two clamping plates 2012, or the clamped and fixed wire can be disassembled to achieve quick disassembly and assembly of the wire.

[0022] like Figure 2 and Figure 3 As shown, in some embodiments, the conductive plate 201 and the clamping plate 2012 are fixedly connected by the metal connecting plate 2013 to ensure that the two are stably connected together and conduct electricity stably during use. One side of the clamping plate 2012 that clamps the wire is provided with evenly distributed anti-slip convex grooves to improve the stability of the clamping plate 2012 in clamping the wire, to prevent the wire from loosening and falling off during use, and to ensure long-term stable use. The metal connecting plate 2013 is located at one end of the clamping plate 2012 and is provided with a notch for deformation to ensure that when the pushing block 2031 pushes the blocking rod 2014, the two clamping plates 2012 can be driven away from each other and quickly reset when the push is cancelled. The metal connecting plate 2013 is made of elastic metal material and can produce appropriate deformation when pushed, and can return to its original state when the push is cancelled, thereby achieving the clamping and fixing of the wire and the rapid cancellation of the limit fixation of the wire, so as to achieve the rapid disassembly and assembly of the wire, and the lower end of the conductive plate 201 is plugged into the plug-in set on the placement seat 202 The conductive plate 201 and the mounting seat 202 are connected to each other stably. A return spring 204 is arranged in the inner cavity of the sleeve 2023 on the mounting seat 202. The return spring 204 is sleeved on the push rod 2032 between the button 203 and the push block 2031. One end of the return spring 204 abuts against the button 203 and the other end abuts against the inner wall of the sleeve 2023, so that the return spring 204 can be moved and compressed while the button 203 slides in the sleeve 2023 when the button 203 is pressed. Spring 204, when the pressure on button 203 is cancelled, the reset spring 204 brings the button 203 to reset smoothly, ensuring smooth use, and the push rod 2032 slides and inserts into the through hole opened on the sleeve 2023, and the push block 2031 is located outside the sleeve 2023, so that when the button 203 is pressed, the push rod 2032 is used to drive the push block 2031 to be inserted between the two blocking rods 2014, and a driving force is applied to the blocking rod 2014 to drive the two splints 2012 to move smoothly.

[0023] like Figure 1 and Figure 2 As shown, in some embodiments, the outer cover 3 can be detachably connected to the outer shell at the terminal portion of the protector body 1. The outer cover 3 can be connected in a manner selected according to actual usage requirements, wherein the outer cover can be connected in a snap-fit ​​manner or fixedly connected in a screw manner, thereby ensuring that the outer cover 3 is stably installed on the protector body 1, and the terminal and the quick wiring assembly 2 are stably covered and protected, thereby ensuring stable use.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An electrical fire-proof current-limiting protector, comprising a quick-connect assembly (2), characterized in that: The conductive plate (201) of the quick wiring assembly (2) is fixedly connected to the outer cover (3) by screws. The outer cover (3) is placed at the terminal position on the protector body (1). The metal plug rod (2011) provided on the conductive plate (201) is inserted into the terminal and electrically connected to the conductor of the terminal. A threading hole (2022) is provided on the mounting seat (202) clamped on the conductive plate (201). The threading hole (2022) is located directly below the clamping plate (2012) on the conductive plate (201). The blocking rod (2014) provided on the clamping plate (2012) abuts against a pushing block (2031) at one end of the button (203). The button (203) is slidably connected to a sleeve (2023) provided on the mounting seat (202).

2. An electrical fire-proof current-limiting protector according to claim 1, characterized in that: The conductive plate (201) and the clamping plate (2012) are fixedly connected via a metal connecting plate (2013); a side of the clamping plate (2012) for clamping the wire is provided with evenly distributed anti-slip convex patterns; and a notch for deformation is provided at one end of the clamping plate (2012); and the lower end of the conductive plate (201) is plugged into a plug-in strip (2021) provided on the mounting seat (202); and a return spring (204) is arranged in the internal cavity of a sleeve (2023) on the mounting seat (202).

3. An electrical fire-proof current-limiting protector according to claim 2, characterized in that: The return spring (204) is sleeved on the push rod (2032) between the button (203) and the push block (2031), one end of the return spring (204) abuts against the button (203) and the other end abuts against the inner wall of the sleeve (2023), and the push rod (2032) slides through a through hole provided on the sleeve (2023), and the push block (2031) is located outside the sleeve (2023).

4. The electrical fire-proof current-limiting protector according to claim 1, characterized in that: The outer cover (3) is detachably connected to the outer shell at the connection terminal position on the protector body (1).

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