Vacuum contactor fuse combined electric appliance fixed based on conductive clamp

Abstract

The utility model provides a vacuum contactor fuse combined electric appliance fixed based on a conductive clamp, a first terminal is connected with a main frame through a fuse cylinder module in a penetrating manner, the conductive clamp is arranged between the first terminal and the end joint of the fuse cylinder module, the outer side of the fuse cylinder module is provided with a BMC (bulk molding compound) shell in a pouring and covering manner, and the BMC shell is connected with the main frame in a pouring and covering manner. BMC shells are arranged on the outer sides of the fuse cylinder modules of the first wiring end and the second wiring end in a stepped stacked and shrunk mode, the right sides and the bottom faces of the BMC shells are connected with the left side of the main frame and the top face of the cart seat in a pouring mode, and the conductive clamps are T2 red copper conductive clamps. According to the utility model, the fuse tube has larger capacity, the fuse tube clamp of the box body is intensified in design, the new support and the fuse tube are firm, safe and reliable, the fuse tube clamp is fixed and fastened by adopting the conductive clamp (T2 copper conductive clamp) with a new structure, excellent temperature rise performance is ensured while the fuse tube clamp is fixed and fastened, and through the design improvement, the new product can meet the requirements of motors of all international power plants.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of vacuum contactors and fuses, and particularly relates to a vacuum contactor-fuse combined electric appliance based on conductive clamp fixing. BACKGROUND

[0002] The vacuum contactor-fuse combined electric appliance is based on a medium-voltage vacuum contactor and increases a high-voltage current-limiting fuse to realize short-circuit protection, and can be used for controlling high-voltage equipment such as three-phase electric motors, transformers and capacitor banks. The vacuum contactor-fuse combined electric appliance comprises a fixed vacuum contactor, three fuses and a handcart. In operation, the trip rod is moved upward by the tripping mechanism of the fuse, and the contactor is tripped by the trip rod, which not only protects the transformer low-voltage winding fault and the fault of the bus connected between the secondary side breaker, but also avoids using a fuse with excessive rated current.

[0003] The maximum current of a conventional 7.2kV vacuum contactor-fuse combined electric appliance is only 315A, which cannot be applied to large power plant generator projects. Therefore, a large-flow vacuum contactor-fuse combined electric appliance is developed to fill the market gap and expand sales. CONTENT OF THE INVENTION

[0004] In order to solve the above problems, the present application provides a vacuum contactor-fuse combined electric appliance based on conductive clamp fixing. The upper and lower parallel type of the vacuum contactor-fuse combined electric appliance is provided with a first wiring end and a second wiring end. The rear ends of the first wiring end and the second wiring end are each provided with a fuse cylinder module. The first wiring end and the second wiring end are horizontally arranged above the trolley seat through the main frame. The first wiring end is connected to the main frame through the fuse cylinder module in a penetrating manner. A conductive clamp is arranged between the end connection of the first wiring end and the fuse cylinder module. The outer side of the fuse cylinder module is covered with a BMC shell in a pouring manner. The outer side of the fuse cylinder module of the first wiring end and the second wiring end is provided with a BMC shell in a stepped and stacked and reduced manner. The right side and the bottom surface of the BMC shell are respectively connected to the left side of the main frame and the top surface of the trolley seat in a pouring manner. The conductive clamp is a T2 red copper conductive clamp. The pouring structure is improved to increase the capacity of the fuse tube. The box body fuse tube clamp is strengthened to make the new bracket and the fuse tube firm, safe and reliable. The fuse tube clamp is fixed by using a new structure conductive clamp (T2 copper conductive clamp), which is fastened while ensuring excellent temperature rise performance. Through the above design improvement, the new product can be applied to all power plant motor demands in the world.

[0005] The shape of the trolley seat is a rectangular plate type seat, both sides of the trolley seat are provided with guide wheels, the rear end of the trolley seat is provided with an emergency trip, the upper surface of the trolley seat is vertically provided with a main frame on the right side, the emergency trip is in internal communication with the main frame through the trolley seat, the rear end of the emergency trip is connected with a safety buckle in a tight manner, and the combination electric appliance arranged above the trolley seat not only facilitates the connection and combination of the vacuum contactor and the fuse, but also facilitates the safe disconnection to ensure the high load safety of the whole.

[0006] The bottom of the front and rear sides of the BMC shell is provided with a valve push plate, the valve push plate is fixedly connected with the main frame through a support, the valve push plate is horizontally directed to the left side of the trolley seat, the BMC shell is a cast integrated reinforced protective shell, a cylindrical connection reinforcing column is arranged at the connection position of the BMC shell and the first wiring end, the BMC shell is fixedly connected with the main frame and the trolley seat, the cast BMC shell can maximize the volume of the fuse tube, adapt to a larger capacity fuse tube, facilitate combined installation, and improve the overall strength, the connection is more stable, high strength, reliable support, flame retardant V-0, and high safety performance.

[0007] The conductive clamp is a knob connected interval conductive clamp, the outer end of the conductive clamp is connected with the first wiring end, the inner end of the conductive clamp is connected with the end of the fuse cartridge module, and the outer side of the conductive clamp is covered with a BMC shell in a cast manner. The conductive clamp made of red copper material has high toughness, is fastened firmly, and has excellent conductive performance.

[0008] Advantages:

[0009] Through the structural change of the improved cast form, the capacity of the fuse tube is larger, the box body fuse tube clamp is reinforced, the new support and the fuse tube are firm and safe and reliable, the fuse tube clamp is fixed by using a new structure conductive clamp (T2 copper conductive clamp), the temperature rise performance is excellent while being fastened, and through the above design improvement, the new product can be applicable to all international power plant motor demands.

[0010] Through the combination electric appliance arranged above the trolley seat, not only the connection and combination of the vacuum contactor and the fuse are facilitated, but also the safe disconnection is facilitated to ensure the high load safety of the whole.

[0011] Through the cast BMC shell, the volume of the fuse tube can be maximized, a larger capacity fuse tube can be adapted, combined installation is facilitated, the overall strength can be improved, the connection is more stable, high strength, reliable support, flame retardant V-0, and high safety performance.

[0012] The conductive clamp made of red copper material has high toughness, is fastened firmly, and has excellent conductive performance. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1is a side partial sectional view of a vacuum contactor fuse combination electric appliance based on conductive clamp fixing;

[0014] In the figure; 1, trolley seat, 2, emergency trip, 3, main frame, 4, valve push plate, 5, first wiring end, 6, second wiring end, 7, conductive clamp, 8, fuse cylinder module, 9, BMC shell. DETAILED DESCRIPTION

[0015] In order to deepen the understanding of the utility model, the utility model will be further described below in combination with examples and drawings, and the examples are only used to explain the utility model and do not constitute the limitation of the protection scope of the utility model.

[0016] Trolley seat 1, emergency trip 2, main frame 3, valve push plate 4, first wiring end 5, second wiring end 6, conductive clamp 7, fuse cylinder module 8, BMC shell 9.

[0017] As Figure 1 shown;

[0018] The utility model provides a vacuum contactor fuse combination electric appliance based on the fixed conductive clamp 7, the upper and lower parallel type of vacuum contactor fuse combination electric appliance is equipped with first wiring terminal 5 and second wiring terminal 6, the rear end of first wiring terminal 5 and second wiring terminal 6 is equipped with fuse cylinder module 8, first wiring terminal 5 and second wiring terminal 6 are laterally horizontally arranged above the trolley seat 1, first wiring terminal 5 is connected with main frame 3 through the fuse cylinder module 8, and the end of first wiring terminal 5 is connected with fuse cylinder module 8, and the conductive clamp 7 is arranged between the end of first wiring terminal 5 and fuse cylinder module 8, the outer side of fuse cylinder module 8 is covered with BMC housing 9, the outer side of fuse cylinder module 8 of first wiring terminal 5 and second wiring terminal 6 is arranged with BMC housing 9 in the form of stepped layering and reduction, the right side and bottom surface of BMC housing 9 are connected with the left side of main frame 3 and the top surface of trolley seat 1 respectively, the conductive clamp 7 is T2 red copper conductive clamp 7, the shape of trolley seat 1 is rectangular plate seat, the front and rear sides of trolley seat 1 are equipped with guide wheels, the rear end of trolley seat 1 is equipped with emergency trip 2, the right side of the upper surface of trolley seat 1 is vertically vertically equipped with main frame 3, the bottom of the front and rear sides of BMC housing 9 is equipped with valve push plate 4, the valve push plate 4 is fixedly connected with main frame 3 through the support, and the valve push plate 4 is horizontally arranged towards the left side of trolley seat 1, the conductive clamp 7 is the interval conductive clamp 7 connected in the form of knob, the outer side end of conductive clamp 7 is connected with first wiring terminal 5, the inner side end of conductive clamp 7 is connected with the end of fuse cylinder module 8, the outer side of conductive clamp 7 is covered with BMC housing 9, the BMC housing 9 is the integrally cast reinforced protective housing, the connecting place of BMC housing 9 and first wiring terminal 5 is equipped with cylindrical connecting reinforcing column, the BMC housing 9 is fixedly connected with main frame 3 and trolley seat 1, the emergency trip 2 is communicated with the inside of main frame 3 and trolley seat 1, and the rear end of emergency trip 2 is connected with safety buckle in the form of tension.

[0019] Implementation example

[0020] The whole vacuum contactor-fuse combination electric appliance is assembled and connected by using BMC housing 9, so that the whole housing is stably connected, and the inside of first wiring terminal 5 is provided with conductive clamp 7, so that the conductive effect under high voltage is improved.

[0021] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A vacuum contactor fuse combination device fixed with a conductive clip, wherein the vacuum contactor fuse combination device is provided with a first terminal and a second terminal in parallel above and below, and the rear ends of the first terminal and the second terminal are both provided with a fuse cartridge module, and the first terminal and the second terminal are horizontally arranged above the cart seat through a main frame, characterized in that: The first terminal is connected to the main frame through the fuse barrel module, and a conductive clip is provided between the first terminal and the end connection of the fuse barrel module. The outer side of the fuse barrel module is cast and covered with a BMC shell. The outer sides of the fuse barrel modules of the first terminal and the second terminal are stepped and stacked to provide a BMC shell. The right side and bottom surface of the BMC shell are cast and connected to the left side of the main frame and the top surface of the cart seat respectively. The conductive clip is a T2 copper conductive clip.

2. The vacuum contactor fuse combination device fixed with a conductive clip according to claim 1, characterized in that: The trolley seat is in the shape of a rectangular plate seat, with guide wheels on both the front and rear sides of the trolley seat, an emergency release on the rear end of the trolley seat, and a main frame vertically arranged on the right side of the upper surface of the trolley seat.

3. The vacuum contactor fuse combination device fixed with a conductive clip according to claim 1, characterized in that: The bottoms of the front and rear sides of the BMC shell are both provided with valve push plates, which are fixedly connected to the main frame through brackets, and the valve push plates are horizontally facing the left side of the cart seat.

4. The vacuum contactor fuse combination device fixed with a conductive clip according to claim 1, characterized in that: The conductive clip is a knob-connected spaced conductive clip, the outer end of the conductive clip is connected to the first terminal, the inner end of the conductive clip is connected to the end of the fuse cartridge module, and the outer side of the conductive clip is covered with a cast BMC shell.

5. The vacuum contactor fuse combination device fixed with a conductive clip according to claim 1, characterized in that: The BMC shell is a cast-in-one reinforced protective shell. A cylindrical connecting reinforcement column is provided at the connection between the BMC shell and the first terminal. The BMC shell is fixedly connected to the main frame and the cart seat.

6. The vacuum contactor fuse combination device fixed with a conductive clip according to claim 2, characterized in that: The emergency release is communicated with the interior of the main frame through the cart seat, and the rear end of the emergency release is connected to the safety buckle in a tight manner.

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