CN116667074A

CN116667074A - Electric connection device

Info

Publication number: CN116667074A
Application number: CN202210149806.1A
Authority: CN
Inventors: 何宜泽
Original assignee: Molex LLC
Current assignee: Molex LLC
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2023-08-29

Abstract

An electrical connection device comprises a bus bar group and a bus bar connector. The bus bar group comprises a first bus bar and a second bus bar. The first bus bar is provided with a first body and a first transmission part arranged at one side of the first body, and the first transmission part comprises a first erection plate. The second bus bar is provided with a second body and a second transmission part arranged at one side of the second body, and the second transmission part comprises a second erection plate. The bus bar connector comprises an insulating shell, a plurality of power terminals which are arranged in the insulating shell and are in two groups, and a first adapter plate and a second adapter plate which are respectively connected with the two groups of power terminals and are respectively adjacent to the first erection plate and the second erection plate, wherein at least one floating module is respectively arranged between the first erection plate and the first adapter plate and between the second erection plate and the second adapter plate.

Description

Electric connection device

Technical Field

The present invention relates to a connecting device, and more particularly, to an electrical connecting device.

Background

Chinese patent publication No. CN109426326a discloses a bus (bus) set of a chassis, wherein a first output portion of a first connection bus includes a plurality of first holes, a second output portion of a second connection bus includes a plurality of second holes, the first holes correspond to the second holes, the first holes and the second holes enable the chassis bus of the server chassis to be fixedly disposed in a gap between the first output portion and the second output portion, and the first holes and the second holes may be, for example, but not limited to, locking holes for locking. However, this way of fixing the rack bus of the server rack to the first output portion and the second output portion of the chassis is very time-consuming in disassembly, which results in maintenance inconvenience.

Disclosure of Invention

It is therefore an object of the present invention to provide an electrical connection device that ameliorates at least one of the problems of the prior art.

Thus, in some embodiments, the electrical connection device of the present invention includes a bus bar set and a bus bar connector. The bus bar set comprises a first bus bar, a second bus bar and an insulating layer. The first bus bar is provided with a first body, a first transmission part arranged on one side of the first body and a plurality of first installation parts arranged on the other side of the first body, wherein the first transmission part comprises a first substrate and a first erection plate, the first substrate extends upwards from the side of the first body, and the first erection plate extends from one side of the first substrate towards the other side of the first body. The second bus bar is provided with a second body, a second transmission part arranged on one side of the second body and a plurality of second installation parts arranged on the other side of the second body, wherein the second transmission part comprises a second substrate and a second erection plate, the second substrate extends upwards from the side of the second body, the second erection plate extends towards the other side of the second body from one side of the second substrate, the first body is positioned above the second body, the insulating layer is arranged between the first body and the second body, and the first erection plate and the second erection plate are positioned above the first body. The bus bar connector comprises an insulating shell, a plurality of power terminals which are arranged in the insulating shell and are in two groups, and a first adapter plate and a second adapter plate which are respectively connected with the two groups of power terminals and are respectively adjacent to the first erection plate and the second erection plate, wherein at least one floating module is respectively arranged between the first erection plate and the first adapter plate and between the second erection plate and the second adapter plate.

In some embodiments, the plurality of first mounting portions of the first bus bar are staggered with the plurality of second mounting portions of the second bus bar.

In some embodiments, the floating module between the first mounting plate and the first adapter plate includes a plug disposed in one of the first mounting plate and the first adapter plate and a receptacle disposed in the other of the first mounting plate and the first adapter plate.

In some embodiments, the floating module between the second mounting plate and the second adapter plate includes a plug and a socket, the plug is disposed on one of the second mounting plate and the second adapter plate, and the socket is disposed on the other of the second mounting plate and the second adapter plate.

In some embodiments, the socket includes a housing, a barrel, a pressing element, and a contact; the base is provided with a channel extending between two ends and an annular accommodating groove extending outwards from the channel, the barrel-shaped piece is provided with a barrel body with an outer diameter smaller than that of the channel, and an annular flange extending outwards from the outer wall surface of the barrel body, the annular flange is movably accommodated in the annular accommodating groove, the pressing element is provided with elasticity and is arranged between the annular flange of the barrel-shaped piece and the annular accommodating groove so as to enable the barrel-shaped piece to float in the channel, and the contact piece is arranged in the barrel body of the barrel-shaped piece; the plug has a post that is inserted into the socket and contacts the contact.

In some embodiments, the insulating housing of the bus bar connector has two slots, the two sets of power terminals are respectively disposed in the two slots, each of the power terminals has a plurality of contact portions extending toward an opening of the slot, and a connection portion connected to the first adapter plate or the second adapter plate.

In some embodiments, the plurality of power terminals within each slot are arranged in a plurality of rows and columns.

In some embodiments, the bus bar connector further includes a plurality of support blocks fixed to the insulating housing, and the plurality of support blocks support the first adapter plate and the second adapter plate from both sides of the first adapter plate and the second adapter plate in common.

In some embodiments, the panel is further provided with a panel, the insulating housing is floatably disposed on the panel, and a gap is formed between the panel and the first substrate and between the panel and the second substrate, the gap accommodates a portion of the insulating housing, and the portion of the insulating housing is floatably limited in the gap.

In some embodiments, the bus bar connector further comprises two cabinet bus bars, wherein the two cabinet bus bars are respectively inserted into the two slots of the bus bar connector and are respectively contacted with the contact parts of the two groups of power terminals to be electrically connected, so that the bus bar connector and the two cabinet bus bars can be inserted in a pluggable manner.

In some embodiments, the bus bar connector further comprises two cabinet bus bars, each of which is provided with a plugboard, and the plugboards of the two cabinet bus bars are respectively inserted into the two slots of the bus bar connector and are respectively contacted with the contact parts of the two groups of power terminals to be electrically connected, so that the bus bar connector and the two cabinet bus bars can be inserted in a pluggable manner.

In some embodiments, the two cabinet bus bars extend up and down, the two slots of the bus bar connector are in a groove shape with open upper and lower ends, and the bus bar connector can be plugged with the two cabinet bus bars in a floating manner up and down relative to the two cabinet bus bars.

In some embodiments, a plurality of connectors are further included, the plurality of connectors being mounted to the plurality of first mounting portions of the first bus bar and the plurality of second mounting portions of the second bus bar, respectively.

The electric connection device has the advantages that the bus bar connector which is provided with the plurality of power terminals and is used for being pluggable and spliced with the two cabinet bus bars enables the disassembly process to be rapid and convenient, and is beneficial to maintenance operation. In addition, through the floating module arranged between the first erection plate and the first connection plate and between the second erection plate and the second connection plate, the first erection plate and the first connection plate and the second erection plate and the second connection plate can be connected in a floating mode, and therefore the bus bar connector can float relative to the bus bar group. In addition, the bus bar connector can be inserted into the two cabinet bus bars in a floating manner up and down relative to the two cabinet bus bars by the two slots of the bus bar connector with the upper and lower ends open in a groove shape. Through the floatable connection relationship, the plugging process between the bus bar connector and the two cabinet bus bars can be smoother. Furthermore, the impedance between the two cabinet bus bars can be reduced by the multipoint contact mode between the contact parts of the power terminals and the two cabinet bus bars, so that the electric conduction capacity is improved.

Drawings

Other features and advantages of the invention will be apparent from the following description of the embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of a first embodiment of an electrical connection device of the present invention;

FIG. 2 is an exploded perspective view of the first embodiment;

FIG. 3 is a further exploded perspective view of the first embodiment;

FIG. 4 is an exploded perspective view of the first embodiment of FIG. 3 from another perspective;

FIG. 5 is an exploded perspective view of the bus bar assembly and the floating module of the first embodiment;

FIG. 6 is an exploded perspective view of the bus bar connector and floating module of the first embodiment;

FIG. 7 is a cross-sectional view of the first embodiment of the floating module;

FIG. 8 is an exploded perspective view of the receptacle of the floating module of the first embodiment;

FIG. 9 is a top view of the first embodiment;

FIG. 10 is a front view of the first embodiment, omitting the cabinet bus bar of the first embodiment;

FIG. 11 is an exploded perspective view of the power terminal and the first adapter plate of the bus bar connector of the first embodiment;

FIG. 12 is a top view similar to FIG. 9, with the cabinet bus bar of the first embodiment omitted and with the bus bar connector of the first embodiment floatingly offset to the left;

fig. 13 is a front view similar to fig. 10 showing the bus bar connector of the first embodiment floatingly offset to the left;

FIG. 14 is a top view similar to FIG. 9, with the cabinet bus bar of the first embodiment omitted and with the bus bar connector of the first embodiment floatingly offset to the right;

fig. 15 is a front view similar to fig. 10 showing the bus bar connector of the first embodiment floatingly offset to the right;

FIG. 16 is a perspective view of a second embodiment of the electrical connection device of the present invention; and

fig. 17 is an exploded perspective view of the second embodiment.

The reference numerals are as follows:

100. electric connection device

1. Bus bar group

11. First bus bar

111. First body

112. A first transmission part

112a first substrate

112b first mounting plate

113. A first mounting part

12. Second bus bar

121. Second body

122. A second transmission part

122a second substrate

122b second mounting plate

123. A second mounting part

13. Insulating layer

2. Connector with a plurality of connectors

3. Bus bar connector

31. Insulating shell

311. Plug-in part

312. Wing part

313. Sliding protrusion

313a screw lock hole

314. Slot groove

314a lead angle

32. Power supply terminal

321. Contact portion

322. Connecting part

33. First adapter plate

34. Second adapter plate

35. Supporting block

36. Screw

37. Screw

4. Panel board

41. Perforation

42. Elongated hole

5. Cabinet bus bar

51. Plug board

52. Screw lock element

6. Floating module

61. Plug

611. Plug-in column

62. Socket

621. Seat body

621a channel

621b annular accommodating groove

622. Barrel-shaped part

622a barrel body

622b annular flange

623. Pressing element

624. Contact element

624a annular head

624b elastic contact piece

625. Fixing ring

625a clamping part

625b abutment

D1 In the front-rear direction

D2 Left-right direction

D3 In the up-down direction

G gap

Detailed Description

Before the present invention is described in detail, it should be noted that in the following description, like elements are denoted by the same reference numerals.

Referring to fig. 1 to 4, a first embodiment of an electrical connection device 100 of the present invention includes a bus bar set 1, a plurality of connectors 2, a bus bar connector 3, a panel 4, and two cabinet bus bars 5. It should be noted that the bus bar set 1, the connectors 2 and the bus bar connector 3 are disposed in a server chassis (not shown), the panel 4 may be configured on a chassis of the server chassis, and the rack bus bar 5 is disposed in a server rack (not shown), for example.

Referring to fig. 1 to 5, the bus bar set 1 includes a first bus bar 11, a second bus bar 12, and an insulating layer 13. The first bus bar 11 has a first body 111, a first transmission portion 112 disposed on one side of the first body 111, and a plurality of first mounting portions 113 disposed on the other side of the first body 111. The first bus bar 11 is made of copper material, which can flow a large current and has excellent heat dissipation, and is formed into the first body 111, the first transmission portion 112 and the plurality of first mounting portions 113 by press bending. The first body 111 is in a wide flat plate shape and extends along a front-back direction D1 (the direction indicated by the arrow is front and the reverse direction is back) and a left-right direction D2 (the direction indicated by the arrow is right and the reverse direction is left), and the width of the first body 111 in the left-right direction D2 is greater than the length in the front-back direction D1. The first transmission portion 112 is integrally formed at a front edge of the first body 111, and includes a first substrate 112a and a first mounting plate 112b, wherein the first substrate 112a extends upward along a vertical direction D3 (the direction indicated by the arrow is upward and the direction indicated by the arrow is downward), and the first mounting plate 112b extends rearward from one side of the first substrate 112a toward a rear edge of the first body 111. The plurality of first mounting portions 113 are integrally formed on the rear side edge of the first body 111, and extend upward in the left-right direction D2 at intervals.

The second bus bar 12 has a second body 121, a second transmission portion 122 disposed on one side of the second body 121, and a plurality of second mounting portions 123 disposed on the other side of the second body 121. The second bus bar 12 is made of copper material, which can flow a large current and has excellent heat dissipation, and is formed into the second body 121, the second transmission portion 122 and the plurality of second mounting portions 123 by punching and bending. The second body 121 is in a wide flat plate shape and extends along the front-rear direction D1 and the left-right direction D2, and the width of the second body 121 in the left-right direction D2 is greater than the length in the front-rear direction D1. The second transmission portion 122 is integrally formed at a front edge of the second body 121, and includes a second substrate 122a and a second mounting plate 122b, wherein the second substrate 122a extends upward from the front edge of the second body 121 along the up-down direction D3, and the second mounting plate 122b extends rearward from one side of the second substrate 122a toward a rear edge of the second body 121. The plurality of second mounting portions 123 are integrally formed on the rear side edge of the second body 121, for example, and extend upward in a spaced arrangement along the left-right direction D2.

The first body 111 of the first bus bar 11 is located above the second body 121 of the second bus bar 12, and the insulating layer 13 is disposed between the first body 111 and the second body 121, and the insulating layer 13 is used for separating the first body 111 and the second body 121 to avoid contact and conduction between the two bodies. In the first embodiment, the insulating layer 13 is exemplified by an insulating sheet, and the insulating layer 13 is adhered between the first body 111 and the second body 121 by, for example, insulating glue. Of course, the insulating layer 13 may be locked to the first body 111 and the second body 121 by a screw locking method, which is not limited by an insulating glue binding method. The insulating layer 13 may be made of an insulating paint or an insulating adhesive applied between the first body 111 and the second body 121, and is not limited to an insulating sheet.

The plurality of first mounting portions 113 of the first bus bar 11 and the plurality of second mounting portions 123 of the second bus bar 12 are staggered in the left-right direction D2. The connectors 2 are respectively mounted to the first mounting portions 113 of the first bus bar 11 and the second mounting portions 123 of the second bus bar 12 in a rearward direction, and the connectors 2 may be, for example, power Supply Units (PSUs) (not shown) and battery backup power units (BBUs) (not shown) for electrically connecting to the server chassis. In the present first embodiment, the first bus bar 11 is connected to the positive electrode of each of the power supply units or each of the battery-backed power units, and the second bus bar 12 is connected to the negative electrode of each of the power supply units or each of the battery-backed power units.

Referring to fig. 2 to 6, the first mounting plate 112b and the second mounting plate 122b are located above the first body 111 and are spaced apart from each other in the left-right direction D2. The bus bar connector 3 includes an insulating housing 31, a plurality of power terminals 32 disposed in two sets on the insulating housing 31, and a first adapter plate 33 and a second adapter plate 34 respectively connected to the two sets of power terminals 32 and respectively adjacent to the first mounting plate 112b and the second mounting plate 122 b. The first adapter plate 33 and the second adapter plate 34 are made of copper material, for example, which can flow a large current and has good heat dissipation, in detail, the first adapter plate 33 and the second adapter plate 34 are arranged side by side along the left-right direction D2 at intervals, and are located between the first mounting plate 112b and the second mounting plate 122b, and are opposite to the first mounting plate 112b and the second mounting plate 122b along the left-right direction D2, respectively. In detail, the bus bar connector 3 further includes a plurality of support blocks 35 fixed to the insulating housing 31, the plurality of support blocks 35 support the first adapter plate 33 and the second adapter plate 34 from both sides of the first adapter plate 33 and the second adapter plate 34 in the left-right direction D2, for example, the plurality of support blocks 35 may be fixed to the insulating housing 31 by a plurality of screws 36, and the plurality of support blocks 35, the first adapter plate 33 and the second adapter plate 34 may be fastened by a plurality of screws 37.

It should be noted that, in other embodiments, only one floating module 6 may be disposed between the first mounting plate 112b and the first adapter plate 33 and between the second mounting plate 122b and the second adapter plate 34, respectively, and the first mounting plate 112b and the first adapter plate 33 and the second mounting plate 122b and the second adapter plate 34 should not be limited to the first embodiment.

Each of the floating modules 6 includes a plug 61 and a socket 62 opposite to each other in the left-right direction D2, and the plug 61 and the socket 62 are made of, for example, copper material capable of flowing a large current and excellent in heat dissipation. The plug 61 of each floating module 6 between the first mounting plate 112b and the first adapter plate 33 is disposed on one of the first mounting plate 112b and the first adapter plate 33, and the socket 62 of each floating module 6 between the first mounting plate 112b and the first adapter plate 33 is disposed on the other of the first mounting plate 112b and the first adapter plate 33. In the present first embodiment, a part among the plugs 61 of the plurality of floating modules 6 between the first mounting plate 112b and the first adapter plate 33 is provided at the first mounting plate 112b, and a part is provided at the first adapter plate 33; part of the sockets 62 of the plurality of floating modules 6 between the first mounting plate 112b and the first adapter plate 33 is disposed at the first mounting plate 112b and part is disposed at the first adapter plate 33.

The plug 61 of each floating module 6 between the second mounting plate 122b and the second adapter plate 34 is disposed on one of the second mounting plate 122b and the second adapter plate 34, and the socket 62 of each floating module 6 between the second mounting plate 122b and the second adapter plate 34 is disposed on the other of the second mounting plate 122b and the second adapter plate 34. In the second embodiment, part of the plugs 61 of the plurality of floating modules 6 between the second mounting plate 122b and the second adapter plate 34 is disposed on the second mounting plate 122b and part is disposed on the second adapter plate 34; a part of the sockets 62 of the plurality of floating modules 6 between the second mounting plate 122b and the second adapter plate 34 is disposed at the second mounting plate 122b and a part is disposed at the second adapter plate 34.

Referring to fig. 3 and 7-8, the socket 62 includes a housing 621, a barrel 622, two pressing elements 623, a contact 624, and a retaining ring 625. The plug 61 has a plug post 611, and the plug post 611 is configured to be inserted into the socket 62 in the left-right direction and contact the contact 624. The seat 621 has a passage 621a extending in the left-right direction D2 between the two ends and an annular accommodating groove 621b extending outward from the passage 621 a. The barrel 622 has a barrel 622a with an outer diameter smaller than the passage 621a, and an annular flange 622b extending outwardly from an outer wall surface of the barrel 622a, the annular flange 622b being movably received in the annular receiving groove 621b. The two pressing elements 623 are elastic and disposed between the annular flange 622b of the barrel 622 and the annular receiving groove 621b, so that the barrel 622 can float in the channel 621 a. In detail, in the first embodiment, the two pressing elements 623 are wave spring ring plates and are respectively disposed at two end surfaces of the annular flange 622b in the left-right direction D2, so that the barrel 622 can float radially in the channel 621a (i.e. float on a plane formed by the front-back direction D1 and the up-down direction D3) and float along the left-right direction D2, but in other embodiments, the pressing elements 623 may be other conventional elastic elements capable of pressing, and the number of the pressing elements 623 may be one or more than three, not limited to the first embodiment.

The contact 624 is disposed in the barrel 622a of the barrel 622 and is penetrated by the plug post 611 of the plug 61, the contact 624 has a ring-shaped head 624a disposed at an end edge of the barrel 622a adjacent to an inner wall surface of the barrel 622a, and a plurality of elastic contact pieces 624b extending obliquely inward from the ring-shaped head 624a toward the other end edge of the barrel 622a for contacting the plug post 611. The fixing ring 625 and the barrel 622a of the barrel 622 clamp the annular head 624a of the contact 624 together to fix the contact 624 in the barrel 622, in detail, the fixing ring 625 has a clamping portion 625a which is annular and clamps the annular head 624a of the contact 624 together with the inner wall surface of the barrel 622a, and an abutting portion 625b which extends outwards from the end edge of the clamping portion 625a and abuts against the end edge of the barrel 622 a. In detail, since the plug post 611 of the plug 61 penetrates and contacts the contact 624 of the socket 62 in the left-right direction D2, the plug post 611 of the plug 61 can also float in the left-right direction D2 with respect to the contact 624 of the socket 62.

The floating module 6 disposed between the first mounting plate 112b and the first adapter plate 33 and between the second mounting plate 122b and the second adapter plate 34 enables the floating connection between the first mounting plate 112b and the first adapter plate 33 and between the second mounting plate 122b and the second adapter plate 34 along the left-right direction D2, so that the bus bar connector 3 can float along the left-right direction D2 relative to the bus bar group 1.

Referring to fig. 1, 2, 9 and 10, the insulating housing 31 of the bus bar connector 3 is floatingly provided on the panel 4. The panel 4 has a through hole 41 penetrating forward and backward, and a plurality of elongated holes 42 penetrating forward and backward and distributed on both sides of the through hole 41, the plurality of elongated holes 42 extending in the left-right direction D2. The insulating housing 31 has a plug portion 311 passing through the through hole 41 from the rear to the front, two wing portions 312 extending laterally outward and mounted on the rear side of the panel 4, and a plurality of sliding protrusions 313 formed on the two wing portions 312 and slidably protruding forward in the lateral direction D2 into the plurality of elongated holes 42, each sliding protrusion 313 being formed with a locking hole 313a for locking a locking member (not shown) by which the plurality of sliding protrusions 313 can be slidably retained in the lateral direction D2 into the plurality of elongated holes 42. A gap G is formed between the panel 4 and the first substrate 112a and between the panel 4 and the second substrate 122a, and the gap G accommodates the two wing portions 312 of the insulating housing 31, so that the two wing portions 312 of the insulating housing 31 can be floatably limited in the left-right direction D2.

Referring to fig. 1, 3, 6 and 11, the insulating housing 31 of the bus bar connector 3 further has two slots 314 penetrating the plugging portion 311 along the front-rear direction D1, the two sets of power terminals 32 are respectively disposed in the two slots 314, and the plurality of power terminals 32 in each slot 314 are arranged in a plurality of rows and a plurality of columns and are disposed on two side surfaces of the first adapter plate 33 or the second adapter plate 34 in the left-right direction D2. Each of the power terminals 32 has a plurality of contact portions 321 located at the front and extending toward the front opening of the slot 314 in the up-down direction D3, and a connecting portion 322 located at the rear and connected to the first adapter plate 33 or the second adapter plate 34, and the connecting portion 322 and the first adapter plate 33 or the second adapter plate 34 may be connected to each other by, for example, fixing members such as rivets or welding.

The two cabinet bus bars 5 extend along the up-down direction D3 and are opposite to each other along the left-right direction D2, the two cabinet bus bars 5 are respectively provided with a plugboard 51 by a screw lock element 52, the plugboards 51 of the two cabinet bus bars 5 extend along the left-right direction D2 and are opposite to each other and backward, the plugboards 51 of the two cabinet bus bars 5 are respectively inserted into the two slots 314 of the bus bar connector 3 and are respectively contacted with the contact portions 321 of the two groups of power terminals 32 to be electrically connected, so that the bus bar connector 3 and the two cabinet bus bars 5 can be inserted and connected in a pluggable manner. In detail, the contact portion 321 of each set of power terminals 32 contacts the left and right sides of the card board 51 of the rack bus bar 5.

Referring to fig. 9 to 10 and 12 to 15, in the first embodiment, each of the slots 314 of the insulating housing 31 of the bus bar connector 3 has two guide corners 314a extending obliquely toward the front, and the two guide corners 314a of each of the slots 314 are opposite to each other in the left-right direction D2 and serve as guides in the left-right direction D2 during insertion of the insert plate 51 of the two rack bus bars 5 into the two slots 314 of the insulating housing 31. Therefore, when the insert plates 51 of the two rack bus bars 5 are inserted into the two slots 314 of the insulating housing 31, the insert plates 51 of the two rack bus bars 5 and the two slots 314 of the insulating housing 31 are not yet fully aligned in the left-right direction D2, the bus bar connector 3 can float in the left-right direction D2 (the bus bar connector 3 floats left as shown in fig. 12 and 13 or the bus bar connector 3 floats right as shown in fig. 14 and 15) relative to the bus bar group 1 and the panel 4 (server chassis) by the guiding action of the two guide corners 314a, so that the insert plates 51 of the two rack bus bars 5 and the two slots 314 of the insulating housing 31 can be fully aligned in the left-right direction D2, and the two rack bus bars 5 and the bus bar connector 3 can be smoothly docked. In addition, the wing portions 312 of the insulating housing 31 of the bus bar connector 3, which are floatably restricted in the left-right direction D2, are also allowed to play a role of avoiding twisting of the bus bar connector 3 during the above-described abutting process.

Referring to fig. 1, 2, 9 and 10, the two slots 314 of the bus bar connector 3 are formed as grooves with open upper and lower ends, and the bus bar connector 3 can be inserted into the two rack bus bars 5 in a floating manner up and down relative to the insertion plate 51 of the two rack bus bars 5.

The bus bar connector 3 with a plurality of power terminals 32 for pluggable connection with the two cabinet bus bars 5 facilitates the disassembly process to be fast and convenient for maintenance operation. In addition, by the two slots 314 of the bus bar connector 3 having the groove shape with the upper and lower ends opened, the bus bar connector 3 can be inserted into the two cabinet bus bars 5 to float up and down with respect to the two cabinet bus bars 5, that is, the bus bar connector 3 can float in the left-right direction D2 with respect to the bus bar group 1 and the panel 4 (server chassis), and the bus bar connector 3 can float in the up-down direction D3 with respect to the two cabinet bus bars 5, thereby enabling the insertion process between the bus bar connector 3 and the two cabinet bus bars 5 to be smoother. Furthermore, by the multipoint contact between the plurality of contact portions 321 of the plurality of power terminals 32 and the two cabinet bus bars 5, the impedance therebetween can be reduced to increase the conductivity.

Referring to fig. 16 and 17, a second embodiment of the electrical connection device 100 of the present invention is different from the first embodiment in that the two rack bus bars 5 are directly inserted into the two slots 314 of the bus bar connector 3 respectively, and are electrically connected to the contact portions 321 of the two sets of power terminals 32 respectively, so that the bus bar connector 3 and the two rack bus bars 5 can be plugged and connected in a pluggable manner.

In summary, the electrical connection device 100 of the present invention has the plurality of power terminals 32 and the bus bar connector 3 for plugging and connecting with the two cabinet bus bars 5 in a pluggable manner, so that the disassembly process is fast and convenient and is beneficial to maintenance. In addition, the floating module 6 disposed between the first mounting plate 112b and the first adapter plate 33 and between the second mounting plate 122b and the second adapter plate 34 enables the floating connection between the first mounting plate 112b and the first adapter plate 33 and between the second mounting plate 122b and the second adapter plate 34, and further enables the bus bar connector 3 to float with respect to the bus bar group 1. In addition, the two slots 314 of the bus bar connector 3 having the shape of a groove with open upper and lower ends allow the bus bar connector 3 to be inserted into the two cabinet bus bars 5 so as to float up and down with respect to the two cabinet bus bars 5. By the above floatable connection, the plugging process between the bus bar connector 3 and the two cabinet bus bars 5 can be smoother. Furthermore, by the multipoint contact between the plurality of contact portions 321 of the plurality of power terminals 32 and the two cabinet bus bars 5, the impedance therebetween can be reduced to increase the conductivity.

However, the above-mentioned embodiments are merely examples of the present invention, and the present invention is not limited to the embodiments, but is intended to cover modifications and equivalent arrangements included within the scope of the appended claims and their equivalents.

Claims

1. An electrical connection device, comprising:

a bus bar group including a first bus bar, a second bus bar and an insulating layer; the first bus bar is provided with a first body, a first transmission part arranged on one side of the first body and a plurality of first installation parts arranged on the other side of the first body, wherein the first transmission part comprises a first base plate and a first erection plate, the first base plate extends upwards from the side of the first body, and the first erection plate extends from one side of the first base plate towards the other side of the first body; the second bus bar is provided with a second body, a second transmission part arranged on one side of the second body and a plurality of second installation parts arranged on the other side of the second body, wherein the second transmission part comprises a second substrate and a second erection plate, the second substrate extends upwards from the side of the second body, the second erection plate extends upwards from one side of the second substrate towards the other side of the second body, the first body is positioned above the second body, the insulating layer is arranged between the first body and the second body, and the first erection plate and the second erection plate are positioned above the first body; and

the bus bar connector comprises an insulating shell, a plurality of power terminals which are arranged on the insulating shell and are in two groups, and a first adapter plate and a second adapter plate which are respectively connected with the two groups of power terminals and are respectively adjacent to the first erection plate and the second erection plate, wherein at least one floating module is respectively arranged between the first erection plate and the first adapter plate and between the second erection plate and the second adapter plate.

2. The electrical connection device of claim 1, wherein the plurality of first mounting portions of the first bus bar are staggered with the plurality of second mounting portions of the second bus bar.

3. The electrical connection device of claim 1, wherein the floating module between the first mounting plate and the first adapter plate comprises a plug disposed in one of the first mounting plate and the first adapter plate and a socket disposed in the other of the first mounting plate and the first adapter plate.

4. The electrical connection device of claim 1, wherein the floating module between the second mounting plate and the second adapter plate comprises a plug and a socket, the plug being disposed on one of the second mounting plate and the second adapter plate, the socket being disposed on the other of the second mounting plate and the second adapter plate.

5. The electrical connection device as claimed in claim 3 or 4, wherein the socket comprises a housing, a barrel, a pressing element and a contact; the base is provided with a channel extending between two ends and an annular accommodating groove extending outwards from the channel, the barrel-shaped piece is provided with a barrel body with an outer diameter smaller than that of the channel, and an annular flange extending outwards from the outer wall surface of the barrel body, the annular flange is movably accommodated in the annular accommodating groove, the pressing element is provided with elasticity and is arranged between the annular flange of the barrel-shaped piece and the annular accommodating groove so as to enable the barrel-shaped piece to float in the channel, and the contact piece is arranged in the barrel body of the barrel-shaped piece; the plug has a post that is inserted into the socket and contacts the contact.

6. The electrical connection device as claimed in claim 1, wherein the insulating housing of the bus bar connector has two slots, the two sets of power terminals are respectively disposed in the two slots, each of the power terminals has a plurality of contact portions extending toward the opening of the slot, and a connection portion connected to the first adapter plate or the second adapter plate.

7. The electrical connection device as recited in claim 6, wherein the plurality of power terminals in each of the slots are arranged in a plurality of rows and columns.

8. The electrical connection device as claimed in claim 6, wherein the bus bar connector further comprises a plurality of support blocks fixed to the insulating housing, the plurality of support blocks supporting the first adapter plate and the second adapter plate from both sides of the first adapter plate and the second adapter plate in common.

9. The electrical connection device of claim 1, further comprising a panel, the insulating housing floatably disposed on the panel, a gap being defined between the panel and the first substrate and between the panel and the second substrate, the gap accommodating a portion of the insulating housing floatably defined in the gap.

10. The electrical connection device of claim 6, further comprising two rack bus bars respectively inserted into the two slots of the bus bar connector and respectively contacting with the contact portions of the two sets of power terminals for electrical connection, so that the bus bar connector is pluggable to the two rack bus bars.

11. The electrical connection device of claim 6, further comprising two rack bus bars, each of the two rack bus bars having a plug board, the plug boards of the two rack bus bars being respectively inserted into the two slots of the bus bar connector and being respectively in contact with the contact portions of the two sets of power terminals to electrically connect the bus bar connector with the two rack bus bars in a pluggable manner.

12. The electrical connection device as claimed in claim 10 or 11, wherein the two cabinet bus bars extend up and down, the two slots of the bus bar connector are in a groove shape with upper and lower ends open, and the bus bar connector can be plugged with the two cabinet bus bars in a floating manner up and down relative to the two cabinet bus bars.

13. The electrical connection device of claim 1, further comprising a plurality of connectors mounted to the first mounting portions of the first bus bar and the second mounting portions of the second bus bar, respectively.