CN220021605U

CN220021605U - Double-bolt hoop-press locking nonporous connector

Info

Publication number: CN220021605U
Application number: CN202321080368.4U
Authority: CN
Inventors: S·施里斯塔; 李浩帮; 谭国濠; 杨玲; 陆永根
Original assignee: Guangzhou Nandun Communications Equipment Co ltd
Current assignee: Guangzhou Nandun Communications Equipment Co ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-11-14
Anticipated expiration: 2033-05-08

Abstract

The utility model discloses a double-bolt hoop-pressure locking nonporous connector, which relates to the field of data center power distribution equipment and comprises a double-bolt assembly 1 and a hoop-pressure connector 2. According to the utility model, when the connector is plugged into the bus conductor and the connector is locked by the double-bolt assembly, the double-bolt assembly provides a compression locking force for the connector, after the connector and the bus conductor in the data center are electrified, the double-bolt assembly is reversely extruded by the connector and the bus conductor in the data center due to thermal expansion, the tightening force of the double-bolt assembly counteracts the reverse extrusion force, the long-term locking of the connector is continuously maintained by smaller deformation, and the locking force of the double-bolt assembly on the connector is stable for a long time.

Description

Double-bolt hoop-press locking nonporous connector

Technical Field

The utility model relates to the technical field of data center power distribution equipment, in particular to a double-bolt hoop-pressure locking nonporous connector.

Background

The wiring of the bus bar of the data center is realized by splicing and extending the bus bar grooves of one section by connectors, each section of bus bar groove is generally 3 meters, and the bus bar is mainly locked by splicing the copper sheet of the connector with the bus bar conductor of the bus bar groove so as to prolong the length of the bus bar.

As shown in fig. 10, the conventional connector is mainly locked by a nut through a bolt through connector, and the connector generally comprises an upper spring plate, an upper pressing plate, (an insulating plate, a copper sheet) …, an insulating plate, a lower pressing plate and a spring plate from top to bottom, and for locking by matching with the bolt, a coaxial through hole is required to be opened for the connector, which mainly has the following technical problems:

1) Because of the copper sheet open holes, as shown in fig. 8-13, the density of the current carrier is not uniform, when the current avoids the through hole part and flows from the side of the hole, the current density is too high, the heat productivity of the section is maximum, and the electrical performance of the conductor is affected.

2) As shown in fig. 8-13, the perforated section of the copper sheet is smaller in the material participating in conduction, so that the power of the perforated section (hereinafter referred to as the section) is maximum when the power of the perforated section is electrified, in order to reduce the power of the section, the length L, the width W and the thickness H of the section are directly and effectively increased, so that the copper sheet must be processed by the copper sheet with the same width W and the same thickness H as the section, and then the copper sheet with the redundant thickness except the section is milled (extruded) to be thin, the processing technology of the copper sheet is complex, and the material is wasted.

3) If the above problems are solved by increasing the width of the copper sheet, after the bus conductor is plugged into the connector, as shown in fig. 8, 9 and 13, the width of the copper sheet of the connector exceeds the width of the bus conductor, and an air interlayer is formed at the part where the widths of the copper sheet and the bus conductor are inconsistent, so that the heat dissipation effect in the connector is poor;

if the problems are solved by increasing the length of the copper sheet, the connector is designed to be very long, and the insulation board matched with the connector and the shell matched with the connector are correspondingly increased in length, so that the consumable is obvious;

if the thickness of the copper sheet is increased to solve the problem, the connector is designed to be wide, the insulation board matched with the connector and the shell matched with the connector are correspondingly increased in width, and if the thickness of the insulation board is not increased to be sacrificed, electrical accidents are easily caused, so that the same consumable is obvious.

4) The insulating board matched with the copper sheet requires wrapping the copper sheet with inconsistent thickness and open holes therein, and the insulating board with the matched shape is required to be processed, as shown in fig. 11, if the shape of the insulating board is ensured to be suitable for copper sheet embedded assembly, the insulating board is required to wrap the copper sheet with open holes for insulation, and the manufacturing design of the insulating board is complex.

5) A connector locked by a nut through the connector by a bolt, the nut providing a force to press the connector when the connector is plugged into the data center bus conductor and the connector is locked by a nut screw; after the power is on, the screw rod and the nut metal parts are heated and softened, and the connector of the connector and the bus conductor of the data center are heated and expanded to reversely extrude the nut on the screw rod, so that the nut is easy to slide, the rated torque is reduced, the conductor is spliced loose, and the electric accident is easy to be caused.

Disclosure of Invention

The present utility model aims to avoid the shortcomings of the prior art and to provide a double bolt ferrule locking, non-porous connector. When the connector is plugged into the bus conductor and the connector is locked by the double-bolt assembly, the double-bolt assembly provides a pressing and locking force for the connector, after the connector and the data center bus conductor are electrified, the double-bolt assembly is reversely extruded by being heated and expanded, the tightening force of the double-bolt assembly counteracts the reverse extrusion force, the long-term locking of the connector is continuously maintained by smaller deformation, and the locking force of the double-bolt assembly on the connector is stable for a long time.

The above object of the present utility model is achieved by the following technical means:

a double-bolt hooping locking nonporous connector is composed of a double-bolt assembly 1 and a hooping connector 2.

Further, the double bolt assembly 1 includes: upper platen 11, lower platen 12, first bolt 13 and second bolt 14 connecting upper platen 11, lower platen 12.

Preferably, the first bolt 13 and the second bolt 14 are provided with a positioning nut 191 and a locking nut 192.

Further, butterfly spring pieces 16 are arranged among the upper pressing plate 11, the lower pressing plate 12 and the connector 2;

the lower pressing plate 12 is provided with a third lock hole 15;

the third lock hole 15 is fitted with a torque screw member 18.

Further, the torque screw member 18 includes a screw 181 assembled in the third lock hole 15, and a positioning nut 183 with a threaded hole is connected to an inner section of the screw 181, and the positioning nut 183 is fixed to the butterfly spring 16.

Further, the connector 2 is regularly provided with a plurality of groups of inserting sheets 3, the upper side and the lower side of each group of inserting sheets 3 are respectively provided with an insulating sheet 4, a radiating sheet 5 is arranged between the adjacent insulating sheets 4, and the upper side and the lower side of the connector 2 are correspondingly provided with an upper clamping sheet 61 and a lower clamping sheet 62;

the periphery of the radiating fin 5, the upper clamping piece 61 and the lower clamping piece 62 are protruded from the inserting piece 3, the protruded parts are convex edges 7, and pressing grooves 8 are formed in two sides of the convex edges 7;

the insert 3 is pore-free and has a uniform thickness.

Preferably, the plurality of sets of inserting pieces 3 comprise three sets of phase line inserting pieces 31, a set of neutral line inserting pieces 32 and a set of ground line inserting pieces 33, which are used for correspondingly inserting bus conductors of bus slots of the data center;

the height of each group of inserting sheets 3 is consistent with that of the bus conductors.

Preferably, the middle part of each group of inserting sheets 3 is oppositely provided with a convex part 34;

the boss 34 is used to align the bus conductors of the busway of the plug-in data center.

Preferably, the upper clamping piece 61 and the lower clamping piece 62 are both provided with a positioning piece 63, and the positioning piece 63 comprises a bending cutting 631 for limiting the elastic amplitude of the butterfly-shaped elastic piece and a plurality of limiting blocks 632 for limiting the displacement of the butterfly-shaped elastic piece.

Preferably, the upper clamping piece 61, the lower clamping piece 62 and the heat sink 5 are provided with a plurality of bayonets 91;

the insulating sheet 4 is provided with a clamping point 92 matched with the bayonet 91;

the upper clamping piece 61, the lower clamping piece 62 and the radiating fin 5 are assembled to the corresponding insulating piece 4 through the corresponding clamping openings 91 and the corresponding clamping points 92;

the inserting piece 3 is nested in the insulating piece 4.

The beneficial effects produced by adopting the technical scheme are that:

1. when the connector is plugged into the bus conductor and the connector is locked by the double-bolt assembly, the double-bolt assembly provides a pressing and locking force for the connector, after the connector and the data center bus conductor are electrified, the double-bolt assembly is reversely extruded by being heated and expanded, the tightening force of the double-bolt assembly counteracts the reverse extrusion force, the long-term locking of the connector is continuously maintained by smaller deformation, and the locking force of the double-bolt assembly on the connector is stable for a long time.

2. The connector has the advantages that the inserting piece does not need to be perforated, and the inserting piece does not need to be thick and/or wide and/or long due to perforation so as to ensure the electrical performance, so that the height of the inserting piece of the connector can be consistent with that of a bus conductor, as shown in fig. 6 and 8, on the premise of ensuring the electrical performance, the sectional area of the conductor is smaller than that of a similar product, the connector can be made to be more flat and smaller than that of the traditional connector, the air gap in the connector is reduced, and the heat dissipation effect is better; the connector, as shown in fig. 4-6, has uniform thickness of the inserting sheet, the radiating fin and the insulating sheet without holes, has simple technological requirements for processing the inserting sheet, the radiating fin and the insulating sheet, and saves manufacturing cost.

3. The positioning nut 191 and the locking nut 192 form double-nut locking of the bolt, and compared with a single-nut locking connector with a single nut locking or a double-end nut reaching rated torque and being automatically disconnected, the locking mode of the bolt can effectively prevent the bolt from softening after being electrified and being subjected to reverse extrusion force to generate nut sliding teeth.

4. When the connector is plugged into the bus conductor of the data center and is locked by the double-bolt assembly, as a preferable technical scheme, a butterfly-shaped elastic sheet is arranged between the connector and the double-bolt assembly, and after the power is applied, the force of the expansion and reverse extrusion of the double-bolt assembly of the connector is counteracted by the butterfly-shaped elastic sheet, and the butterfly-shaped elastic sheet continuously maintains long-term compression on the connector with smaller deformation.

5. The other end of the connector applies pressure to the butterfly spring plate by using a double-headed nut, and when the torque screw member reaches rated torque, the butterfly spring plate is shown to press the connector into place.

6. The fin 5, go up clamping piece 61 and down clamping piece 62 all protrusion in all around in inserted sheet 3, the fin is insulating with the conductor, and the double-bolt subassembly is prolonged the indent 8 locking connector of fin left and right both sides, when designing the connector metal casing, can be directly with fin 5, go up clamping piece 61 and down clamping piece 62 and double-bolt subassembly direct contact shell, with the direct conduction of most heat to the metal casing, radiating efficiency is fast, has further strengthened electrical property stability and life is longer.

7. When the bus conductors are inserted, the convex part of each group of inserting sheets is used as a datum point, one side of the connector is inserted with the bus conductor at the head of one section of bus duct of the data center, the other side is inserted with the bus conductor at the tail of the other section of bus duct of the data center, and the inserted bus conductor is blocked by the convex part and is shown as being inserted in place in a contraposition.

8. The height of each group of inserting pieces 3 is consistent with that of a bus conductor, after the inserting pieces are embedded into the insulating piece, the insulating piece is spliced with the radiating piece, the periphery of the upper clamping piece, the periphery of the lower clamping piece and the periphery of the radiating piece are protruded out of the inserting pieces, and after the bus duct conductor is inserted into the inserting piece, the connector almost has no air gap, so that the connector can be made to be smaller and flatter, the upper clamping piece, the lower clamping piece and the radiating piece can be directly contacted with the connector shell, and most of heat is directly guided to the connector shell from the upper clamping piece, the lower clamping piece and the radiating piece to carry out rapid heat dissipation.

Drawings

FIG. 1 is a schematic illustration of a two-bolt, swaged, non-porous connector according to an embodiment;

FIG. 2 is an exploded view of a twin bolt assembly according to an embodiment;

FIG. 3 is a cross-sectional view of an embodiment of a connector;

FIG. 4 is an assembly view of the assembly of the embodiment;

FIG. 5 is a second assembly view of the assembly of the embodiment;

FIG. 6 is a schematic diagram of a set of tab plug bus conductors;

FIG. 7 is a schematic diagram of a heat sink and insulator assembly;

FIG. 8 is a comparison of the present utility model with a prior art tab plug bus conductor;

FIG. 9 is a graph comparing current density of the insert of the present utility model with that of the prior art;

FIG. 10 is a schematic diagram of a prior art connector plug bus conductor;

FIG. 11 is a schematic view of a prior art connector with bolts extending therethrough;

FIG. 12 is a schematic diagram of a prior art connector lug for plugging a bus bar conductor;

fig. 13 is a schematic diagram of an assembly structure of a conventional connector plug and an insulation sheet.

Wherein the double bolt assembly 1; an upper platen 11; a lower platen 12; a first bolt 13; a second bolt 14; a third lock hole 15; butterfly spring 16; a torque screw member 18; a screw 181; a positioning nut 183; a positioning nut 191; a lock nut 192;

a connector 2; an inserting sheet 3; phase wire insert 31; a zero line insert 32; a ground wire insert 33; a boss 34; an insulating sheet 4; a heat sink 5; an upper clip 61; a lower clip 62; a positioning member 63; bending the cutting 631; a stopper 632; a convex edge 7; a pressing groove 8; a bayonet 91; snap points 92.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Example 1 a double bolt swage locked, nonporous connector is shown in fig. 1 as being comprised of a double bolt assembly 1 swage connector 2.

When the connector is plugged with the bus conductor and the connector is locked by the double-bolt assembly, the double-bolt assembly provides a compression locking force for the connector, after the connector and the data center bus conductor are electrified, the double-bolt assembly is reversely extruded by being heated and expanded, the tightening force of the double-bolt assembly counteracts the reverse extrusion force, the long-term locking of the connector is continuously maintained by smaller deformation, and the locking force of the double-bolt assembly on the connector is stable for a long time;

the connector has the advantages that the inserting piece does not need to be perforated, and the inserting piece does not need to be thick and/or wide and/or long due to perforation so as to ensure the electrical performance of the connector, so that the height of the inserting piece of the connector can be kept consistent with that of a bus conductor, as shown in fig. 6 and 8, under the premise of ensuring the electrical performance, the sectional area of the conductor is smaller than that of like products, the connector can be made to be smaller than that of the existing connector, the air gap in the connector is reduced, and the connector is more economical in material and better in radiating effect.

Embodiment 2 has other technical features similar to those of embodiment 1, except that, as shown in fig. 2, the double bolt assembly 1 includes: upper platen 11, lower platen 12, first bolt 13 and second bolt 14 connecting upper platen 11, lower platen 12.

The connector is locked by hooping the double-bolt assembly, the upper pressing plate and the lower pressing plate provide pressing and locking force for the connector, and after the connector is electrified, the hooping force of the double-bolt assembly enables the upper pressing plate and the lower pressing plate to counteract the reverse extrusion force of the connector, so that the long-term locking of the connector is continuously maintained with smaller deformation.

In embodiment 3, other technical features are the same as those in embodiment 2, except that as shown in fig. 2, the first bolt 13 and the second bolt 14 are provided with a positioning nut 191 and a locking nut 192.

The positioning nut 191 and the locking nut 192 form double-nut locking of the bolt, and compared with a single-nut locking connector with a single nut locking or a double-end nut reaching rated torque and being automatically disconnected, the locking mode of the bolt can effectively prevent the bolt from softening after being electrified and being subjected to reverse extrusion force to generate nut sliding teeth.

Embodiment 4, other technical features of the present embodiment are the same as those of embodiment 2, except that, as shown in fig. 1-2, butterfly-shaped elastic sheets 16 are arranged between the upper pressing plate 11, the lower pressing plate 12 and the connector 2;

the lower pressing plate 12 is provided with a third lock hole 15;

the third lock hole 15 is fitted with a torque screw member 18.

When the connector is plugged into the bus conductor of the data center and is locked by the double-bolt assembly, as a preferable technical scheme, a butterfly-shaped elastic sheet is arranged between the connector and the double-bolt assembly, and after the power is applied, the force of the expansion and reverse extrusion of the double-bolt assembly of the connector is counteracted by the butterfly-shaped elastic sheet, and the butterfly-shaped elastic sheet continuously maintains long-term compression on the connector with smaller deformation.

In general, the other end of the connector applies pressure to the butterfly spring with a torque screw, and when the rated torque is reached, it is shown that the butterfly spring presses the connector into place.

Embodiment 5, other technical features of this embodiment are the same as those of embodiment 4, and the difference is that, as shown in fig. 1 and 5, the torque screw member 18 includes a screw 181 assembled in the third lock hole 15, and a positioning nut 183 with a threaded hole is connected to an inner section of the screw 181, and the positioning nut 183 is fixed to the butterfly spring 16.

The screw 181 is screwed to the positioning nut from the other end of the connector from the lower pressure plate to press the butterfly spring plate, and when the torque screw member reaches the rated torque, the butterfly spring plate is shown to press the connector into place.

Embodiment 6, other technical features of the present embodiment are the same as those of embodiment 1, except that as shown in fig. 3, the connector 2 is regularly provided with a plurality of sets of inserting pieces 3, each set of inserting pieces 3 is provided with insulating sheets 4 on the upper and lower sides, heat dissipation sheets 5 are arranged between adjacent insulating sheets 4, and upper clamping pieces 61 and lower clamping pieces 62 are correspondingly arranged on the upper and lower sides of the connector 2;

the insert 3 is pore-free and has a uniform thickness.

The connector, as shown in figures 8-9, has no open holes on the inserting sheet, uniform thickness of the inserting sheet, uniform density of the current carrier and stable electrical performance.

The connector has the advantages that the inserting piece does not need to be perforated, the conductor does not need to be thick and/or wide because of perforation and/or the perforated section is made long so as to ensure the electrical performance, so the height of the inserting piece of the connector can be kept consistent with that of a bus conductor, the air gap in the connector is reduced, as shown in figures 6 and 8, under the premise of ensuring the electrical performance, the sectional area of the inserting piece is smaller than that of like products, and therefore, the connector can be made to be more flat and smaller than that of the existing connector, and the connector is more material-saving and better in heat dissipation effect.

The fin 5, go up clamping piece 61 and down clamping piece 62 all protrusion in all around in inserted sheet 3, the fin is insulating with the conductor, and the double-bolt subassembly is prolonged the indent 8 locking connector of fin left and right both sides, when designing the connector metal casing, can be directly with fin 5, go up clamping piece 61 and down clamping piece 62 and double-bolt subassembly direct contact shell, with the direct conduction of most heat to the metal casing, radiating efficiency is fast, has further strengthened electrical property stability and life is longer.

The connector, as shown in fig. 4-6, has uniform thickness of the inserting sheet, the radiating fin and the insulating sheet without holes, has simple technological requirements for processing the inserting sheet, the radiating fin and the insulating sheet, and saves manufacturing cost.

Embodiment 7, other technical features of the present embodiment are the same as those of embodiment 6, and the difference is that, as shown in fig. 1, 3 and fig. 6, the plurality of sets of inserting pieces 3 includes three sets of phase line inserting pieces 31, one set of neutral line inserting pieces 32 and one set of ground line inserting pieces 33, which are used for correspondingly inserting bus conductors of bus slots of a data center;

The three groups of phase line inserting pieces 31, the group of neutral line inserting pieces 32 and the group of ground line inserting pieces 33 respectively correspond to the three phase line conductors, the one ground line conductor and the one neutral line conductor of the bus duct of the plug-in data center.

Embodiment 8 has other technical features similar to embodiment 6, except that as shown in fig. 6, the middle part of each group of the inserting sheets 3 is oppositely provided with a convex part 34;

When in construction, the convex part of each group of inserting sheets is used as a datum point, one side of the connector is inserted with a bus conductor at the head part of one section of bus duct of the data center, the other side is inserted with a bus conductor at the tail part of the other section of bus duct of the data center, and the inserted bus conductor is blocked by the convex part and is shown as being inserted in place in a contraposition.

In embodiment 9, other technical features of the present embodiment are the same as those of embodiment 6, except that, as shown in fig. 5, the upper clamping piece 61 and the lower clamping piece 62 are both provided with a positioning piece 63, and the positioning piece 63 includes a bending insert 631 for limiting the elastic amplitude of the butterfly spring and a plurality of limiting blocks 632 for limiting the displacement of the butterfly spring.

Embodiment 10 has the same other technical features as embodiment 7, except that, as shown in fig. 7, the upper clamping piece 61, the lower clamping piece 62 and the heat sink 5 are all provided with a plurality of bayonets 91;

the inserting piece 3 is nested in the insulating piece 4.

The height of each group of inserting pieces 3 is consistent with that of a bus conductor, after the inserting pieces are embedded into the insulating piece, the insulating piece is spliced with the radiating piece, the periphery of the upper clamping piece, the periphery of the lower clamping piece and the periphery of the radiating piece are protruded out of the inserting pieces, and after the bus duct conductor is inserted into the inserting piece, the connector almost has no air gap, so that the connector can be made to be smaller and flatter, the upper clamping piece, the lower clamping piece and the radiating piece can be directly contacted with the connector shell, and most of heat is directly guided to the connector shell from the upper clamping piece, the lower clamping piece and the radiating piece to carry out rapid heat dissipation.

Embodiment 11, which is a connector mounting embodiment, as shown in fig. 1-7, includes the following steps:

step 1, respectively assembling a first component, a second component and a third component:

the first assembly is shown in fig. 5, and comprises an upper clamping piece, an insulating piece and an inserting piece in sequence from top to bottom, wherein the inserting piece is embedded into the insulating piece and then is clamped with a clamping point of the upper clamping piece through a bayonet of the insulating piece to be assembled into a whole;

the second component is shown in fig. 4, and comprises an inserting sheet, an insulating sheet, a radiating sheet, an insulating sheet and an inserting sheet from top to bottom in sequence, wherein the left inserting sheet and the right inserting sheet are respectively embedded into the left insulating sheet and the right insulating sheet and then are clamped with clamping points of the radiating sheet through bayonets of the insulating sheet to be assembled into a whole;

and the third component is sequentially provided with an inserting sheet, an insulating sheet and a lower clamping sheet from top to bottom, and the inserting sheet is embedded into the insulating sheet and then is clamped with the clamping point of the lower clamping sheet through the bayonet of the insulating sheet to be assembled integrally.

Step 2, assembling the connector:

2-1, a first bolt 13 and a second bolt 14 penetrate through the upper pressing plate 11;

2-2, assembling a third component, a second component and a first component in sequence in a side-pressing mode along the pressing groove 8 of the first bolt 13 and the second bolt 14, and putting the second component into four groups in sequence;

2-3, mounting the lower platen 12 from the first bolts 13 and the second bolts 14;

2-4, pre-locking the first bolt 13 and the second bolt 14 by nuts;

step 3, the connector plugs the busbar conductors and locks them in place:

3-1, two sections of adjacent bus ducts, wherein each bus conductor carries out contraposition and plug-in connection on the inserting sheets from two sides of the connector;

3-2, again applying torque to the nut until the connector locks the bus bar conductors in place.

Embodiment 12, the preferred embodiment of this embodiment 11;

mounting butterfly-shaped elastic pieces before and after the step 2-2, wherein the butterfly-shaped elastic pieces are assembled in positioning pieces 63 of an upper clamping piece 61 and a lower clamping piece 62; a positioning nut 183 is assembled near the butterfly spring plate of the lower clamping piece 62; locking the bolt with a positioning nut;

in step 2-4, the first bolt 13 and the second bolt 14 are pre-locked by the locking nut; the pre-locking of the double-bolt assembly to the connector is completed;

and 3-2, not applying torque to the locking nut, but using the torque screw rod piece to be matched with the lower pressing plate to further press the butterfly spring piece, and providing extrusion force for devices in the connector by the butterfly spring piece, wherein when the torque screw rod piece reaches rated torque, the connector is completely locked in place.

Claims

1. The double-bolt hooping locking nonporous connector is characterized by comprising a double-bolt assembly (1) and a hooping connector (2);

the double bolt assembly (1) comprises: an upper pressing plate (11) and a lower pressing plate (12), and a first bolt (13) and a second bolt (14) which are connected with the upper pressing plate (11) and the lower pressing plate (12);

the first bolt (13) and the second bolt (14) are provided with a positioning nut (191) and a locking nut (192).

2. The double-bolt hoop-pressure-locked nonporous connector as recited in claim 1, wherein butterfly-shaped elastic sheets (16) are arranged among the upper pressing plate (11), the lower pressing plate (12) and the connector (2);

the lower pressing plate (12) is provided with a third lock hole (15);

the third lock hole (15) is equipped with a torque screw member (18).

3. The double-bolt ferrule-press-locking, hole-free connector according to claim 2, wherein the torque screw member (18) comprises a screw (181) fitted in the third lock hole (15), and a positioning nut (183) having a threaded hole is connected to an inner section of the screw (181), and the positioning nut (183) is fixed to the butterfly spring piece (16).

4. The double bolt, swaged, non-porous connector of claim 1,

the connector (2) is regularly provided with a plurality of groups of inserting sheets (3), the upper side and the lower side of each group of inserting sheets (3) are provided with insulating sheets (4), radiating fins (5) are arranged between the adjacent insulating sheets (4), and the upper side and the lower side of the connector (2) are correspondingly provided with an upper clamping sheet (61) and a lower clamping sheet (62);

the peripheries of the radiating fins (5), the upper clamping pieces (61) and the lower clamping pieces (62) are protruded out of the inserting pieces (3), the protruded parts are convex edges (7), and pressing grooves (8) are formed in two sides of the convex edges (7);

the inserting sheet (3) is nonporous and uniform in thickness.

5. The double bolt, swaged, non-porous connector of claim 4,

the plurality of groups of inserting pieces (3) comprise three groups of phase line inserting pieces (31), a group of zero line inserting pieces (32) and a group of ground wire inserting pieces (33) which are used for correspondingly inserting bus conductors of bus slots of the data center;

the height of each group of inserting sheets (3) is consistent with that of the bus conductor.

6. The double-bolt press-locking, hole-free connector of claim 4, wherein the middle of each set of tabs (3) has oppositely projecting portions (34);

the boss (34) is used for aligning and plugging bus conductors of a bus duct of the data center.

7. The double-bolt tightening locking nonporous connector of claim 4, wherein the upper clamping piece (61) and the lower clamping piece (62) are provided with positioning pieces (63), and the positioning pieces (63) comprise bending inserts (631) for limiting the elastic amplitude of the butterfly spring pieces and a plurality of limiting blocks (632) for limiting the displacement of the butterfly spring pieces.

8. The double-bolt pinch-locked, non-porous connector according to claim 5, characterized in that the upper clip (61), the lower clip (62) and the heat sink (5) are provided with a number of bayonets (91);

the insulating sheet (4) is provided with a clamping point (92) matched with the bayonet (91);

the upper clamping piece (61), the lower clamping piece (62) and the radiating fin (5) are assembled on the corresponding insulating piece (4) through the corresponding bayonet (91) and the corresponding clamping point (92);

the inserting piece (3) is nested in the insulating piece (4).