阅读说明：本技术 一种用于矿用脉冲电源的高压连接器及矿用脉冲电源 (High-voltage connector for mining pulse power supply and mining pulse power supply ) 是由 高庆勇 刘辉勇 王伟 邹岩 张庆生 杨国杰 于 2021-07-19 设计创作，主要内容包括：本发明公开了一种用于矿用脉冲电源的高压连接器,包括:连接器本体、正极连接柱和负极连接柱；连接器本体为矩形结构,其顶部开口,其一个侧壁设置有电缆输出孔,其底部设置有正极连接孔和负极连接孔；正极连接柱一端与正极连接孔固定连接,其另一端设置有正极连接铜排；负极连接柱一端与负极连接孔固定连接,其另一端设置有负极连接铜排；正极连接铜排与矿用脉冲电源的输出正极连接,负极连接铜排与矿用脉冲电源的输出负极连接。本发明实施例还保护一种矿用脉冲电源。通过高压输出电缆正负极与高压连接器的极柱连接,提高了连接的可靠性,并进一步使用压板对高压输出电缆的进线进行压紧固定,保证了大电流放电的安全性,具有可靠的防爆性能。(The invention discloses a high-voltage connector for a mining pulse power supply, which comprises a connector body, a positive connecting column and a negative connecting column, wherein the positive connecting column is arranged on the connector body; the connector body is of a rectangular structure, the top of the connector body is open, one side wall of the connector body is provided with a cable output hole, and the bottom of the connector body is provided with a positive connecting hole and a negative connecting hole; one end of the positive connecting column is fixedly connected with the positive connecting hole, and the other end of the positive connecting column is provided with a positive connecting copper bar; one end of the negative connecting column is fixedly connected with the negative connecting hole, and the other end of the negative connecting column is provided with a negative connecting copper bar; the positive electrode connecting copper bar is connected with the output positive electrode of the mining pulse power supply, and the negative electrode connecting copper bar is connected with the output negative electrode of the mining pulse power supply. The embodiment of the invention also protects the mining pulse power supply. The positive and negative electrodes of the high-voltage output cable are connected with the pole posts of the high-voltage connector, so that the connection reliability is improved, the incoming line of the high-voltage output cable is further compressed and fixed by the pressing plate, the safety of heavy-current discharge is guaranteed, and the explosion-proof connector has reliable explosion-proof performance.)

1. A high-voltage connector for a mining pulse power supply is characterized by comprising a connector body, a positive connecting column and a negative connecting column;

the connector body is of a rectangular structure, the top of the connector body is open, one side wall of the connector body is provided with a cable output hole, and the bottom of the connector body is provided with a positive connecting hole and a negative connecting hole;

one end of the positive connecting column is fixedly connected with the positive connecting hole, and the other end of the positive connecting column is provided with a positive connecting copper bar;

one end of the negative connecting column is fixedly connected with the negative connecting hole, and the other end of the negative connecting column is provided with a negative connecting copper bar;

the positive electrode connecting copper bar is connected with the positive output electrode of the mining pulse power supply, and the negative electrode connecting copper bar is connected with the negative output electrode of the mining pulse power supply.

2. High-voltage connector for a mining pulsed power supply according to claim 1,

the length of the positive connecting column in the direction perpendicular to the bottom of the connector body is different from the length of the positive connecting column in the direction perpendicular to the bottom of the connector body.

3. High-voltage connector for a mining pulsed power supply according to claim 1,

a first partition plate is arranged between the positive connecting hole and the negative connecting hole;

the first partition plate is perpendicular to the bottom of the connector body.

4. High-voltage connector for a mining pulsed power supply according to claim 3,

the top of the first clapboard is provided with a first groove and a first pressing plate which are matched;

one end or two ends of the first pressing plate are detachably connected with the top of the first groove.

5. High-voltage connector for a mining pulsed power supply according to claim 3,

the first partition plate is provided with a first through hole.

6. The high voltage connector for a mining pulsed power supply of claim 1, further comprising: diplopore copper line nose of bending, diplopore copper line nose of bending includes: the double-hole bent copper nose anode and the double-hole bent copper nose cathode are arranged on the outer wall of the shell;

the positive electrode double-hole copper nose is fixedly connected with the positive electrode connecting copper bar through a first connecting device;

and the negative electrode double-hole copper nose is fixedly connected with the negative electrode connecting copper bar through a second connecting device.

7. The high voltage connector for a mining pulsed power supply of claim 1, said connector body further comprising: a top plate;

the top plate is matched with the top of the side wall of the connector body and is detachably connected with the connector body.

8. High-voltage connector for a mining pulsed power supply according to claim 1,

a second pressing plate is arranged at the top of the side wall of the connector body, which is provided with the cable output hole;

the second pressing plate is detachably connected with the top of the corresponding side wall.

9. High-voltage connector for a mining pulsed power supply according to claim 1,

the bottom of the outer surface of the side wall of the connector body is provided with an annular connecting part;

the annular connecting part is provided with a plurality of fixing holes.

10. A mining pulse power supply, characterized by comprising the high-voltage connector of any one of claims 1 to 9, wherein the positive pole and the negative pole of the mining pulse power supply are connected with a high-voltage output cable through the high-voltage connector.

Technical Field

The invention relates to the technical field of high-voltage equipment, in particular to a high-voltage connector for a mining pulse power supply and the mining pulse power supply.

Background

At present, the rated voltage grades of underground distribution voltage and electrical equipment require that the high voltage does not exceed 10kV, and the low voltage does not exceed 1140V. The highest voltage class of the flameproof wiring terminal is 10 kV. The mining pulse power supply output voltage based on the pulse power technology is 35kV DC, and an explosion-proof connector meeting the voltage level is needed.

The wiring terminal of the mining explosion-proof equipment needs to meet the explosion-proof requirement, and the explosion-proof characteristic of the equipment cannot be influenced after the wiring terminal is installed on the explosion-proof shell of the mining explosion-proof equipment. Namely, the structure of the explosion-proof terminal and the fixing mode of the explosion-proof terminal on the explosion-proof equipment need to meet the requirements of the second part of GB 3836.1-2010: the specific regulations of the width (L) and the clearance (i) of an explosion-proof joint surface in equipment protected by an explosion-proof shell'd' also meet the requirements of different voltage grades on electric clearance and creepage distance in GB 4793.1-2007 measurement, control and safety requirements of laboratory electrical equipment part 1 general requirements. The output voltage of the mining pulse power supply is 35kV DC, if explosion-proof requirements and insulation requirements are met at the same time, two non-standard high-voltage insulators shown in figure 1 need to be processed, the creepage distance needs to be guaranteed through skirt edges of the length of the foot edge surfaces, and the electric gap needs to be guaranteed through a large enough space distance.

The highest insulation grade of the existing mine explosion-proof wiring terminal in the mine equipment industry is 10kV, and the insulation requirement of 35kV output voltage of a pulse power supply cannot be met. Insulators of the type shown in fig. 1 may be relatively bulky in order to meet explosion-proof requirements and insulation requirements of 35kV, and may result in an explosion-proof cavity that is too large, resulting in wasted space and cost.

Disclosure of Invention

The embodiment of the invention aims to provide a high-voltage connector for a mining pulse power supply and the mining pulse power supply, wherein the positive electrode and the negative electrode of a high-voltage output cable are connected with the pole of the high-voltage connector, so that the connection reliability is improved, the incoming line of the high-voltage output cable is further compressed and fixed by a pressing plate, the safety of heavy-current discharge is ensured, the high-voltage connector has reliable explosion-proof performance, and the high-voltage connector has the advantages of compact layout, safety and reliability.

In order to solve the technical problem, a first aspect of the embodiments of the present invention provides a high voltage connector for a mining pulse power supply, including a connector body, a positive connection column and a negative connection column;

the connector body is of a rectangular structure, the top of the connector body is open, one side wall of the connector body is provided with a cable output hole, and the bottom of the connector body is provided with a positive connecting hole and a negative connecting hole;

one end of the positive connecting column is fixedly connected with the positive connecting hole, and the other end of the positive connecting column is provided with a positive connecting copper bar;

one end of the negative connecting column is fixedly connected with the negative connecting hole, and the other end of the negative connecting column is provided with a negative connecting copper bar;

the positive electrode connecting copper bar is connected with the positive output electrode of the mining pulse power supply, and the negative electrode connecting copper bar is connected with the negative output electrode of the mining pulse power supply.

Further, the length of the positive connecting column in the direction perpendicular to the bottom of the connector body is different from the length of the positive connecting column in the direction perpendicular to the bottom of the connector body.

Further, a first partition plate is arranged between the positive electrode connecting hole and the negative electrode connecting hole;

the first partition plate is perpendicular to the bottom of the connector body.

Furthermore, a first groove and a first pressing plate which are matched with each other are arranged at the top of the first partition plate;

one end or two ends of the first pressing plate are detachably connected with the top of the first groove.

Further, the first partition plate is provided with a first through hole.

Further, still include: diplopore copper line nose of bending, diplopore copper line nose of bending includes: the double-hole bent copper nose anode and the double-hole bent copper nose cathode are arranged on the outer wall of the shell;

the positive electrode double-hole copper nose is fixedly connected with the positive electrode connecting copper bar through a first connecting device;

and the negative electrode double-hole copper nose is fixedly connected with the negative electrode connecting copper bar through a second connecting device.

Further, the connector body further includes: a top plate;

the top plate is matched with the top of the side wall of the connector body and is detachably connected with the connector body.

Furthermore, a second pressing plate is arranged at the top of the side wall of the connector body, which is provided with the cable output hole;

the second pressing plate is detachably connected with the top of the corresponding side wall.

Further, an annular connecting part is arranged at the bottom of the outer surface of the side wall of the connector body;

the annular connecting part is provided with a plurality of fixing holes.

Correspondingly, a second aspect of the embodiment of the invention provides a mining pulse power supply, which comprises any one of the high-voltage connectors, wherein the positive electrode and the negative electrode of the mining pulse power supply are connected with a high-voltage output cable through the high-voltage connector.

The technical scheme of the embodiment of the invention has the following beneficial technical effects:

the positive electrode and the negative electrode of the high-voltage output cable are connected with the pole of the high-voltage connector through the double-hole copper wire nose, so that the connection reliability is improved, the incoming line of the high-voltage output cable is further compressed and fixed by the pressing plate, the safety of heavy-current discharge is guaranteed, the explosion-proof performance is reliable, and the high-voltage connector has the advantages of compact layout, safety and reliability.

Drawings

FIG. 1 is a prior art non-level compression insulator;

fig. 2 is a sectional view of a high-voltage connector for a mining pulse power supply provided by an embodiment of the invention;

fig. 3 is a three-dimensional structure diagram of a high-voltage connector for a mining pulse power supply according to an embodiment of the invention;

fig. 4 is a schematic diagram of a combination structure of a high-voltage connector housing for a mining pulse power supply according to an embodiment of the invention.

Reference numerals:

1. the connector body, 11, the diplopore copper nose positive pole of bending, 12, the diplopore copper nose negative pole of bending, 13, second clamp plate, 14, annular connecting portion, 15, the fixed orifices, 2, anodal spliced pole, 21, anodal connection copper bar, 3, negative pole spliced pole, 31, negative pole connection copper bar, 4, first baffle, 41, first clamp plate, 5, high-voltage output cable.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Second part of GB 3836.1-2010: the width (L) of explosion-proof joint surfaces of class I, class II and class III explosion-proof equipment in various connection and fixing modes and the gap (i) are specified in detail in an explosion-proof type shell'd' protected equipment, a mining pulse charging source belongs to the class I explosion-proof equipment, a high-voltage connector shown in figure 1 is connected with an explosion-proof cabinet body through a plurality of bolts by a flange plate, and two cylindrical structures of a positive electrode and a negative electrode enter the explosion-proof cabinet body through an opening in the explosion-proof cabinet body.

Fig. 2 is a sectional view of a high-voltage connector for a mining pulse power supply provided by an embodiment of the invention;

fig. 3 is a three-dimensional structural diagram of a high-voltage connector for a mining pulse power supply according to an embodiment of the invention.

Referring to fig. 2 and 3, a first aspect of the embodiment of the present invention provides a high voltage connector for a mining pulse power supply, including a connector body 1, a positive connection column 2 and a negative connection column 3; the connector body 1 is of a rectangular structure, the top of the connector body is open, one side wall of the connector body is provided with a cable output hole, and the bottom of the connector body is provided with a positive connecting hole and a negative connecting hole; one end of the positive connecting column 2 is fixedly connected with the positive connecting hole, and the other end of the positive connecting column is provided with a positive connecting copper bar 21; one end of the negative connecting column 3 is fixedly connected with the negative connecting hole, and the other end of the negative connecting column is provided with a negative connecting copper bar 31; the positive electrode connecting copper bar 21 is connected with the positive output electrode of the mining pulse power supply, and the negative electrode connecting copper bar 31 is connected with the negative output electrode of the mining pulse power supply.

The high-voltage connector is used for outputting 35kV output voltage of the mining pulse power supply and strictly follows the second part of GB 3836.1-2010: the explosion-proof design requirement of equipment protected by an explosion-proof type shell d and the insulation requirement of part 1 general requirement of GB 4793.1-2007 measurement, control and safety requirement of electrical equipment for laboratories carry out explosion-proof structural design and high-voltage insulation design, and the safety of large-current discharge is ensured by the double-hole bent copper wire nose and the pressing plate, so that the high-voltage connector is explosion-proof, compact in layout, safe and reliable.

Further, the length of the positive connection post 2 in the direction perpendicular to the bottom of the connector body 1 is different from the length of the positive connection post 2 in the direction perpendicular to the bottom of the connector body 1.

Further, a first partition plate 4 is arranged between the anode connecting hole and the cathode connecting hole; the first partition plate 4 is perpendicular to the bottom of the connector body 1.

Further, a first groove and a first pressing plate 41 which are matched with each other are arranged at the top of the first partition plate 4; one end or both ends of the first pressing plate 41 are detachably connected with the top of the first groove.

Further, the first partition plate 4 is provided with a first through hole.

Further, still include: diplopore copper line nose of bending, diplopore copper line nose of bending includes: a double-hole bent copper nose anode 11 and a double-hole bent copper nose cathode 12; (ii) a The double-hole bent copper nose positive electrode 11 is fixedly connected with the positive electrode connecting copper bar 21 through a first connecting device; the double-hole bent copper nose negative electrode 12 is fixedly connected with the negative electrode connecting copper bar 31 through a second connecting device.

In order to ensure the safety of high-voltage and large-current discharge of the pulse power supply, the positive electrode and the negative electrode of the high-voltage output cable 5 are connected with the pole of the high-voltage connector through the double-hole bent copper wire nose positive electrode 11 and the double-hole bent copper wire nose negative electrode 12, so that the copper wire nose is in more sufficient and reliable contact with the pole, and the cable inlet wire is pressed by the pressing plate. The double-hole bent copper wire nose positive electrode 11 and the double-hole bent copper wire nose negative electrode 12 are provided with 60-degree bends in consideration of the bending radius of the lead.

Optionally, the connector body 1 further includes: a top plate. The top plate is matched with the top of the side wall of the connector body 1 and is detachably connected with the connector body.

Further, a second pressing plate 13 is arranged at the top of the side wall of the connector body 1 provided with the cable output hole; the second pressing plate 13 is detachably connected with the top of the corresponding side wall.

Further, the bottom of the outer surface of the side wall of the connector body 1 is provided with an annular connecting part 14; the annular connecting portion 14 is provided with a plurality of fixing holes 15.

Fig. 4 is a schematic diagram of a combination structure of a high-voltage connector housing for a mining pulse power supply according to an embodiment of the invention.

Referring to fig. 4, the high-voltage connector is connected with the explosion-proof cabinet body through a plurality of bolts via a flange, two cylindrical structures of the anode and the cathode enter the explosion-proof cabinet body through the opening on the explosion-proof cabinet body, and the structural design is carried out strictly according to the requirements of minimum width and maximum gap on the joint surface of the explosion-proof shell in the standard so as to ensure that the explosion-proof requirements are met. The width L of the joint surface is 100mm, the distance L is 66.5mm, the clearance I of the explosion-proof joint surface is not more than 0.3mm, and the roughness Ra of the joint surface is 3.2 μm, which all meet the relevant requirements of I-type electrical equipment in the standard. As shown in fig. 4, L is the width of the bonding surface, i.e., the shortest path from the inside of the flameproof housing to the outside of the housing through the bonding surface. l is the shortest path of the explosion-proof joint surface when the joint surface is cut off by the fastening screw, and the sum of the width a of the joint surface of the cylindrical part and the width b of the joint surface of the inner side plane part of the hole is obtained. i is the joint face gap, and f is the position chamfer dimension shown.

The high-voltage connector is directly isolated through the insulating plate and guarantees that the electrical clearance and the creepage distance meet the general requirements of the part 1 of the safety requirements of GB 4793.1-2007 measurement, control and laboratory electrical equipment, 35kV working voltage, 60kV of insulating experimental voltage, 120mm of required minimum electrical clearance and 250mm of minimum creepage distance.

The high-voltage connector is used for outputting 35kV output voltage of the mining pulse power supply and strictly follows the second part of GB 3836.1-2010: the explosion-proof design requirement of equipment protected by an explosion-proof type shell d and the insulation requirement of part 1 general requirement of GB 4793.1-2007 measurement, control and safety requirement of electrical equipment for laboratories carry out explosion-proof structural design and high-voltage insulation design, and the safety of large-current discharge is ensured by the double-hole bent copper wire nose and the pressing plate, so that the high-voltage connector is explosion-proof, compact in layout, safe and reliable.

In addition, the high voltage connector minimizes the volume while ensuring electrical insulation through insulation isolation and skirts.

Correspondingly, a second aspect of the embodiment of the invention provides a mining pulse power supply, which comprises any one of the high-voltage connectors, wherein the positive pole and the negative pole of the mining pulse power supply are connected with a high-voltage output cable 5 through the high-voltage connector.

The embodiment of the invention aims to protect a high-voltage connector for a mining pulse power supply, which comprises a connector body, a positive connecting column and a negative connecting column; the connector body is of a rectangular structure, the top of the connector body is open, one side wall of the connector body is provided with a cable output hole, and the bottom of the connector body is provided with a positive connecting hole and a negative connecting hole; one end of the positive connecting column is fixedly connected with the positive connecting hole, and the other end of the positive connecting column is provided with a positive connecting copper bar; one end of the negative connecting column is fixedly connected with the negative connecting hole, and the other end of the negative connecting column is provided with a negative connecting copper bar; the positive electrode connecting copper bar is connected with the output positive electrode of the mining pulse power supply, and the negative electrode connecting copper bar is connected with the output negative electrode of the mining pulse power supply. The embodiment of the invention also protects the mining pulse power supply. The technical scheme has the following effects:

the positive and negative electrodes of the high-voltage output cable are connected with the pole of the high-voltage connector through the double-hole copper wire nose, so that the connection reliability is improved, the incoming line of the high-voltage output cable is further compressed and fixed by the pressing plate, the safety of heavy-current discharge is guaranteed, the explosion-proof performance is reliable, and the high-voltage output cable has the advantages of compact layout, safety and reliability.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.