阅读说明：本技术 一种基于新型螺栓连接的电连接结构 (Electric connection structure based on novel bolted connection ) 是由 邹德旭 沈龙 程建伟 颜冰 洪志湖 王山 张曦 代维菊 周仿荣 钱国超 孙夏青 于 2021-08-24 设计创作，主要内容包括：本发明公开了一种基于新型螺栓连接的电连接结构,为可按压式结构,能通过按压连接螺栓进行连接螺栓的使用和取出,弹簧卡子能将连接螺栓卡设在螺孔中,保证载流底板和接线端子牢固连接的同时,能有效防止由于震动或者老化导致电连接结构松动,本方案电连接结构易于拆解与安装,便于工作人员检查更换套管,节省了大量人力物力和时间。(The invention discloses an electric connection structure based on novel bolt connection, which is a press type structure, and can be used for using and taking out a connection bolt by pressing the connection bolt, a spring clip can clamp the connection bolt in a screw hole, so that the electric connection structure can be effectively prevented from being loosened due to vibration or aging while a current-carrying bottom plate and a wiring terminal are ensured to be firmly connected, the electric connection structure is easy to disassemble and install, a worker can conveniently check and replace a sleeve, and a large amount of manpower, material resources and time are saved.)

1. The utility model provides an electric connection structure based on novel bolted connection which characterized in that: the connecting device comprises a current-carrying bottom plate (1) and a wiring terminal (3) which are connected through a connecting bolt (2), wherein a screw hole is formed in the bottom of the current-carrying bottom plate (1) corresponding to the connecting bolt (2), a spring clip (4) is arranged on the inner wall of the screw hole, and the spring clip (4) is used for clamping the connecting bolt (2) in the screw hole;

the connecting bolt (2) comprises a screw head (21), a screw body (22), a movable pressing buckle (23) and a screw tail seat (24), the screw body (22) is positioned between the screw head (21) and the screw tail seat (24), the movable pressing buckle (23) is movably sleeved on the screw body (22), a bayonet is formed between the screw head (21) and the movable pressing buckle (23), and the spring clip (4) is clamped in the bayonet;

and the wiring terminal (3) is provided with a wiring hole (5).

2. The electrical connection structure based on the novel bolt connection as claimed in claim 1, wherein: the current-carrying bottom plate (1) is provided with two screw holes.

3. The electrical connection structure based on the novel bolt connection as claimed in claim 1, wherein: the activity is pressed and is detained (23) including pressing and take off ring (231) and pressure handle (232), press and take off ring (231) cover to establish on spiral shell body (22), press handle (232) to be the semicircle tube-shape, press handle (232) upper end with press and take off ring (231) integrated into one piece, spiral shell tailstock (24) correspond press handle (232) to be equipped with the semicircle tube-shape arch that suits with it.

Technical Field

The invention belongs to the technical field of electric connection structures of electric equipment sleeves of a convertor station, and particularly relates to an electric connection structure based on novel bolt connection.

Background

China is located between two large earthquake zones, earthquake activities occur frequently, a converter station faces strong earthquake with high destructiveness and medium and small earthquake threats occurring frequently, a large number of extra-high voltage electrical equipment in the station has high earthquake damage risks, and the equipment structure is easily damaged under the action of strong earthquakes, so that the electrical performance is lost. In addition, failure of electrical connection structures in current-carrying circuits of critical equipment is also one of the important factors that contribute to the loss of function of the equipment. The electric connection structure is a connection structure of a current-carrying bottom plate at the root of a sleeve and a wiring terminal in various electrical equipment in a converter station, and has the function of realizing conduction and transportation in various electrical equipment stores, so that the electric connection structure is used as a key connection node between the electrical equipment or in part of the equipment, and the importance of the electric connection structure is self-evident, if the electric connection structure is damaged, a very serious result is caused.

However, the performance research and the structure design of the electrical connection structure are extremely deficient. Practical engineering experience shows that the contact surface of the electric connection structure is prone to slipping and failure under the action of natural disasters, for example, the connection is not compact due to aging and corrosion of the screw thread of the bolt of the electric connection structure or the bolt slips and fails under violent vibration such as earthquake and the like. These structural problems often lead to overheating and discharge failures, which seriously affect the conductivity, even cause serious consequences such as ignition and explosion of the main equipment.

The mismatch between the importance of current electrical connection structures and their research results has resulted in that they can be seriously damaged and can cause unpredictable economic losses in natural disasters. The above existing structural problems need to be solved, and therefore, it is necessary to carry out deep research and optimization on the structural form and the bolts at the connection of the electrical connection structure of the critical equipment.

Disclosure of Invention

The invention aims to overcome the defect that the prior art cannot ensure the tight connection between a current-carrying bottom plate and a wiring terminal under natural disaster conditions, and provides an electric connection structure based on novel bolt connection.

The invention adopts the following technical scheme:

the utility model provides an electric connection structure based on novel bolted connection, its key lies in: the current-carrying connecting device comprises a current-carrying bottom plate and a connecting terminal which are connected through a connecting bolt, wherein the bottom of the current-carrying bottom plate is provided with a screw hole corresponding to the connecting bolt, the inner wall of the screw hole is provided with a spring clip, and the spring clip is used for clamping the connecting bolt in the screw hole; the connecting bolt comprises a bolt head, a bolt body, a movable pressing buckle and a bolt tail seat, the bolt body is positioned between the bolt head and the bolt tail seat, the movable pressing buckle is movably sleeved on the bolt body, a bayonet is formed between the bolt head and the movable pressing buckle, and the spring clip is clamped in the bayonet; and the wiring terminal is provided with a wiring hole.

The effect of this scheme is: be equipped with spring clip in the screw of current-carrying bottom plate bottom in this scheme, can establish the connecting bolt card in the screw, when guaranteeing current-carrying bottom plate and binding post firm connection, can effectively prevent because vibrations or ageing lead to electric connection structure not hard up, and this structure easily disassembles and installs, and the staff of being convenient for inspects and changes the sleeve pipe, has saved a large amount of manpower and materials and time.

Preferably, the current-carrying bottom plate is provided with two screw holes. The effect of this scheme is: ensuring good and stable fixing effect.

Preferably, the movable pressing buckle comprises a pressing release ring and a pressing handle, the pressing release ring is sleeved on the screw body, the pressing handle is in a semi-cylindrical shape, the upper end of the pressing handle and the pressing release ring are integrally formed, and the screw tail seat is provided with a semi-cylindrical protrusion corresponding to the pressing handle. The effect of this scheme is: the movable pressing buckle enables the connecting bolt to be of a pressing type structure, the pressing handle can be pressed to enable the pressing-releasing ring to move upwards to press the spring clip into the current-carrying bottom plate, and the connecting bolt is convenient to use and take out.

Has the advantages that: the electric connection structure based on the novel bolt connection is a press-type structure, the connection bolt can be used and taken out by pressing the connection bolt, the spring clip can clamp the connection bolt in the screw hole, the current-carrying bottom plate and the wiring terminal are firmly connected, meanwhile, the electric connection structure can be effectively prevented from being loosened due to vibration or aging, the electric connection structure is easy to disassemble and install, workers can conveniently check and replace sleeves, and a large amount of manpower, material resources and time are saved.

Drawings

FIG. 1 is a schematic view of an electrical connection structure according to an embodiment of the present invention;

FIG. 2 is a schematic view of an inner shaft of the electrical connection structure according to the embodiment of the present invention;

FIG. 3 is an axial view of a connecting bolt 2 according to an embodiment of the present invention;

fig. 4 is a schematic axial view of the connection bolt 2 according to the embodiment of the present invention after being pressed.

Detailed Description

The invention is described in further detail below with reference to the following figures and examples:

example (b): as shown in fig. 1-4, an electrical connection structure based on a novel bolt connection is characterized in that: the cable connector comprises a current-carrying bottom plate 1 and a wiring terminal 3 which are connected through a connecting bolt 2, wherein a wiring hole 5 is formed in the wiring terminal 3, two screw holes are formed in the bottom of the current-carrying bottom plate 1 and correspond to the two connecting bolts 2 respectively, a spring clip 4 is arranged on the inner wall of each screw hole, and the spring clip 4 is used for clamping the connecting bolt 2 in the screw holes; the connecting bolt 2 comprises a bolt head 21, a bolt body 22, a movable pressing buckle 23 and a bolt tail seat 24, the bolt body 22 is positioned between the bolt head 21 and the bolt tail seat 24, the movable pressing buckle 23 is movably sleeved on the bolt body 22, a bayonet is formed between the bolt head 21 and the movable pressing buckle 23, and the spring clip 4 is clamped in the bayonet; the movable pressing buckle 23 comprises a pressing ring 231 and a pressing handle 232, the pressing ring 231 is sleeved on the screw body 22, the pressing handle 232 is in a semi-cylindrical shape, the upper end of the pressing handle 232 and the pressing ring 231 are integrally formed, and the screw tail seat 24 is provided with a semi-cylindrical protrusion corresponding to the pressing handle 232. When this scheme was used, only need press connecting bolt 2 and can realize connecting bolt's installation and take out, it is very convenient.

Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.