CN216850600U - Electrical connection device - Google Patents

Abstract

An electrical connection device comprises a first circuit board, a plurality of first connectors, a plurality of second connectors, a second circuit board and a positioning shell. The first connectors are arranged on the first circuit board in a row. Each second connector of the second connector is provided with a contact end part and a connection end part, the connection end part is provided with a screw hole, and the contact end parts of the second connectors are respectively and electrically connected with the first connectors. The second circuit board is provided with a plurality of through holes which are respectively aligned with the screw holes of the second connector so as to respectively pass through the through holes and be in threaded connection with the screw holes through a plurality of bolts, wherein a gap is formed between the inner edge of each through hole and the outer edge of each bolt. The second connector is arranged on the positioning shell and cannot rotate relative to the positioning shell.

Description

Electrical connection device

Technical Field

The utility model relates to a connecting device especially relates to an electric connecting device.

Background

U.S. patent publication No. US9837654 discloses a connector system in which, in one embodiment, positive and negative bus bars are electrically coupled to positive and negative interface pins by one or more retaining bolts. As such, the negative interface pin and the positive interface pin may be electrically coupled to the positive terminal and the negative terminal of the energy storage device to form a power supply connection. However, this electrical connection method may cause the negative and positive connector pins to rotate during the locking process, which makes locking difficult, and may cause the negative and positive connector pins to be difficult to align and connect the positive and negative terminals due to the distance tolerance between the negative and positive connector pins after the locking process.

SUMMERY OF THE UTILITY MODEL

It is therefore an object of the present invention to provide an electrical connector that overcomes at least one of the disadvantages of the prior art.

Therefore, in some embodiments, the electrical connection device of the present invention includes a first circuit board, a plurality of first connectors, a plurality of second connectors, a second circuit board and a positioning housing. The plurality of first connectors are arranged on the first circuit board in a row. Each of the second connectors has a contact end and a connection end, the connection end has a screw hole, wherein the contact ends of the second connectors are electrically connected to the first connectors, respectively. The second circuit board is provided with a plurality of through holes which are respectively aligned with the screw holes of the second connectors so as to respectively pass through the through holes and be in threaded connection with the screw holes through a plurality of bolts, wherein a gap is formed between the inner edge of each through hole and the outer edge of each bolt. The second connectors are arranged on the positioning shell and cannot rotate relative to the positioning shell.

In some embodiments, the positioning housing has a top side and a bottom side, and a plurality of passages are penetratingly formed from the top side to the bottom side, and the plurality of first connectors respectively extend into the plurality of passages from the bottom side, and the plurality of second connectors respectively extend into the plurality of passages from the top side.

In some embodiments, the positioning housing further has a plurality of first planes respectively adjoining the plurality of channels, and each of the second connectors has a second plane mutually matching the first plane adjoining the corresponding channel.

In some embodiments, each of the channels is cylindrical and a plurality of the second connectors have a peripheral profile that matches the shape of a plurality of the channels.

In some embodiments, a plurality of the second connectors are male connectors and a plurality of the first connectors are female connectors.

In some embodiments, each of the contact ends of the second connector has a pin; each first connector comprises a barrel body and a cage-shaped contact piece which is arranged in the barrel body and electrically connected with the contact pin at the contact end part of the corresponding second connector.

In some embodiments, the cage-shaped contact includes a fixing portion disposed on the barrel and a plurality of elastic contact pieces extending from the fixing portion.

In some embodiments, a plurality of the second connectors are female connectors and a plurality of the first connectors are male connectors.

In some embodiments, each of the first connectors has a pin; the contact end part of each second connector comprises a barrel body and a cage-shaped contact element which is arranged in the barrel body and electrically connected with the corresponding contact pin of the first connector.

In some embodiments, the cage-shaped contact includes a fixing portion disposed on the barrel and a plurality of elastic contact pieces extending from the fixing portion.

In some embodiments, the positioning housing is disposed on the first circuit board, the first circuit board has a plurality of positioning holes, and the positioning housing has a plurality of positioning posts correspondingly engaged with the plurality of positioning holes.

In some embodiments, the first circuit board has a plurality of mounting holes for mounting a plurality of said first connectors.

Therefore, in some embodiments, the electrical connection device of the present invention includes a first circuit board, a plurality of first connectors, a plurality of second connectors, and a second circuit board. The first connectors are arranged on the first circuit board in a row, and each first connector is provided with a first positioning structure. Each second connector is provided with a contact end part, a connecting end part and a second positioning structure matched with the first positioning structure, the connecting end part is provided with a screw hole, wherein the contact end parts of the plurality of second connectors are respectively and electrically connected with the plurality of first connectors, and the plurality of second positioning structures are respectively positioned on the plurality of first positioning structures, so that the plurality of second connectors cannot respectively rotate relative to the plurality of first connectors. The second circuit board is provided with a plurality of through holes which are respectively aligned with the screw holes of the second connectors so as to respectively pass through the through holes and be in threaded connection with the screw holes through a plurality of bolts, wherein a gap is formed between the inner edge of each through hole and the outer edge of each bolt.

In some embodiments, the first positioning structure comprises one of a concave portion and a convex portion, and the second positioning structure comprises the other of the concave portion and the convex portion.

In some embodiments, the first positioning structure comprises a recess having a first plane, and the second positioning structure comprises a protrusion for mating with the recess, the protrusion having a second plane that is complementary to the first plane.

In some embodiments, the contact end of each second connector further has a pin; each first connector is also provided with a barrel body and a cage-shaped contact element which is arranged in the barrel body and is electrically connected with the contact pin at the contact end part of the corresponding second connector.

In some embodiments, the first positioning structure includes two recesses formed in the barrel and facing each other, each of the recesses having a first plane, and the second positioning structure includes two protrusions for corresponding fitting with the two recesses and located around the pin, each of the protrusions having a second plane matching the first plane of the corresponding recess.

The utility model discloses the inner edge of the through hole of this second circuit board of electric connection device with have the clearance between the outer fringe of bolt, can satisfy from this the bolt with position tolerance requirement between the through hole. And through the matching between the positioning shell or the first positioning structures of the first connectors and the second positioning structures of the second connectors, the second connectors can be prevented from rotating in the screwing process of the bolts and the screw holes, and the situation that the bolts are difficult to lock is avoided. In some embodiments, the positioning of the first and second connectors and the spacing therebetween can also be located by a plurality of the channels of the positioning housing.

Drawings

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

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

FIG. 2 is a perspective view of the first embodiment from another perspective;

FIG. 3 is an exploded perspective view of FIG. 1;

FIG. 4 is an exploded perspective view of FIG. 2;

FIG. 5 is a cross-sectional view of the first embodiment;

FIG. 6 is an enlarged partial cross-sectional view based on FIG. 5;

fig. 7 is a perspective view of a second embodiment of the electrical connection device of the present invention;

FIG. 8 is a perspective view of the second embodiment from another perspective;

FIG. 9 is an exploded perspective view of FIG. 7;

FIG. 10 is an exploded perspective view of FIG. 8;

fig. 11 is a cross-sectional view of the second embodiment.

Fig. 12 is a perspective view of a third embodiment of the electrical connector of the present invention;

FIG. 13 is a perspective view of the third embodiment from another perspective;

FIG. 14 is an exploded perspective view of FIG. 12;

FIG. 15 is an exploded perspective view of FIG. 13; and

fig. 16 is a cross-sectional view of the third embodiment.

The reference numbers are as follows:

100 electric connection device

1 first Circuit Board

11 mounting hole

12 positioning hole

2 first connector

21 barrel body

211 tubular member

212 cap-like member

213 mounting boss

22 cage contact

221 fixed part

222 elastic contact sheet

23 inserting needle

24 mounting post

25 Flange

26 first positioning structure

261 recess

262 first plane

3 positioning shell

31 top side

32 bottom side

33 channel

34 positioning column

35 first plane

4 second connector

41 contact end

411 contact pin

412 barrel body

412a tubular member

412b cover-like member

412c mounting boss

413 cage contact

413a fixed part

413b elastic contact piece

42 connecting end

421 screw hole

422 connecting sleeve

43 second plane

44 second positioning structure

441 convex part

442 second plane

5 second Circuit Board

51 through hole

52 conductive pad

6 bolt

7 Metal gasket

D1 vertical direction

D2 left and right direction

G gap

Detailed Description

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

Referring to fig. 1 to 4, a first embodiment of the electrical connection device 100 of the present invention includes a first circuit board 1, a plurality of first connectors 2, a positioning housing 3, a plurality of second connectors 4, and a second circuit board 5.

Referring to fig. 1 to 5, the first circuit board 1 is located at a lower position in a vertical direction D1, and a plurality of first connectors 2 are arranged in a row on the first circuit board 1 along a left-right direction D2. In the present first embodiment, the plurality of first connectors 2 are female connectors. Each of the first connectors 2 includes a barrel 21, and a cage-shaped contact 22 disposed inside the barrel 21. The barrel 21 includes a tubular member 211, and a cover member 212 disposed at the bottom of the tubular member 211 and commonly sandwiching the cage-shaped contact 22, wherein the cage-shaped contact 22 has a fixing portion 221 commonly sandwiched by the tubular member 211 and the cover member 212, and a plurality of elastic contact pieces 222 extending upward from the fixing portion 221. Also, the first circuit board 1 has a plurality of mounting holes 11 for mounting a plurality of first connectors 2, and a mounting protrusion 213 is formed at the bottom of each tubular member 211 to be inserted into the corresponding mounting hole 11.

The positioning housing 3 has a top side 31 and a bottom side 32, and a plurality of channels 33 penetratingly formed from the top side 31 to the bottom side 32 along the up-down direction D1. in the first embodiment, the positioning housing 3 is disposed on the first circuit board 1, and a plurality of first connectors 2 respectively extend from the bottom side 32 into the plurality of channels 33. In the first embodiment, the first circuit board 1 has a plurality of positioning holes 12 formed therethrough, and the positioning housing 3 has a plurality of positioning posts 34 extending downward and corresponding to the positioning holes 12.

In the present first embodiment, the plurality of second connectors 4 are male connectors. Each of the second connectors 4 has a contact end 41 facing downward and a connection end 42 facing upward. The contact end 41 has a pin 411 at the end, and the connection end 42 has a screw hole 421 at the end. Wherein a plurality of second connectors 4 extend from the top side 31 into a plurality of channels 33, respectively. The contact ends 41 of the second connectors 4 are electrically connected to the first connectors 2 along the vertical direction D1, and more specifically, the pins 411 of the contact ends 41 of the second connectors 4 are inserted into the barrel 21 of the first connectors 2 and contact and electrically connect with the elastic contact pieces 222 of the cage-shaped contacts 22 of the first connectors 2, so that the second connectors 4 are electrically connected to the first connectors 2.

The screw holes 421 of the connecting ends 42 of the second connectors 4 are exposed outside the positioning housing 3, the second circuit board 5 has a plurality of through holes 51, and the through holes 51 are aligned with the screw holes 421 of the second connectors 4 respectively, so that the bolts 6 pass through the through holes 51 respectively and are screwed with the screw holes 421. The second connectors 4 are disposed on the positioning housing 3 and do not rotate relative to the positioning housing 3, and in detail, the positioning housing 3 mainly prevents the second connectors 4 from rotating during the screwing process of the bolts 6 and the screw holes 421, so as to avoid the situation that the bolts 6 are difficult to lock. In the first embodiment, each of the passages 33 has a cylindrical shape, and the plurality of second connectors 4 have a peripheral profile matching the shape of the plurality of passages 33. The positioning housing 3 also has a plurality of first planes 35 adjoining the plurality of channels 33, respectively. Specifically, each of the channels 33 is adjoined by two of the first planes 35, and each of the second connectors 4 has two of the second planes 43 that match the two of the first planes 35 adjoined by the corresponding channel 33. Thereby preventing the second connectors 4 from rotating during the process of screwing and locking the bolts 6, and further avoiding the situation that the bolts 6 are difficult to lock. In another embodiment, each of the channels 33 is adjacent to one of the first planes 35, and each of the second connectors 4 has one of the second planes 43 matching with the corresponding one of the first planes 35 adjacent to the channel 33, that is, the number of the first planes 35 and the second planes 43 can be adjusted according to the requirement, which is not limited by the first embodiment.

It should be noted that, in the process of assembling the first embodiment, the first connectors 2 may be first disposed on the first circuit board 1, the positioning housing 3 is disposed on the first circuit board 1, the second connectors 4 extend into the passages 33 of the positioning housing 3 and are electrically connected to the first connectors 2, and finally the second circuit board 5 is screwed to the second connectors 4 through the bolts 6. Referring to fig. 6, a gap G is formed between the inner edge of the through hole 51 and the outer edge of the bolt 6, so that the requirement of the position tolerance between the bolt 6 and the through hole 51 can be satisfied. In addition, during the assembly process, the positions and the pitches of the plurality of first connectors 2 and the plurality of second connectors 4 can be positioned by the plurality of passages 33 of the positioning housing 3.

Referring to fig. 7 to 11, a second embodiment of the electrical connection device 100 of the present invention is different from the first embodiment in that the plurality of second connectors 4 are female connectors and the plurality of first connectors 2 are male connectors. Each first connector 2 has an upward pin 23, a downward mounting post 24 inserted into the corresponding mounting hole 11 of the first circuit board 1, and a flange 25 located between the pin 23 and the mounting post 24 and used for abutting against the first circuit board 1 from above.

The contact end 41 of each second connector 4 includes a barrel 412 and a cage contact 413 disposed in the barrel 412 and electrically connected to the corresponding pin 23 of the first connector 2. The barrel 412 includes a tubular member 412a, and a cover member 412b disposed on top of the tubular member 412a and sandwiching the cage contact 413 together, the cage contact 413 having a fixing portion 413a sandwiched by the tubular member 412a and the cover member 412b together, and a plurality of elastic contact pieces 413b extending downward from the fixing portion 413 a. A mounting protrusion 412c is formed on the top of each tubular member 412a, and the connecting end 42 of each second connector 4 has a connecting sleeve 422 sleeved on the mounting protrusion 412c from above and provided with the screw hole 421. In the second embodiment, the two second planes 43 of each second connector 4 are formed on the connecting sleeve 422. In an embodiment, there may be only one second plane 43.

In the process of assembling the second embodiment, the first connectors 2 may be first disposed on the first circuit board 1, the second connectors 4 are electrically connected to the first connectors 2, the positioning housing 3 is then sleeved on the first connectors 2 and the second connectors 4 (in other words, the first connectors 2 and the second connectors 4 penetrate through the positioning housing 3), and the second circuit board 5 is finally screwed to the second connectors 4 through the bolts 6. Referring to fig. 11, a gap G is formed between the inner edge of the through hole 51 and the outer edge of the bolt 6, so that the requirement of the position tolerance between the bolt 6 and the through hole 51 can be satisfied. In addition, during the assembly process, the positions and the pitches of the plurality of first connectors 2 and the plurality of second connectors 4 can be positioned by the plurality of passages 33 of the positioning housing 3.

Referring to fig. 12 to 16, a third embodiment of the electrical connection device 100 of the present invention is different from the first embodiment in that the positioning housing 3 is omitted in the third embodiment, each of the first connectors 2 further has a first positioning structure 26, and each of the second connectors 4 further has a second positioning structure 44 matching with the first positioning structure 26. The first positioning structure 26 includes two recesses 261 formed in the barrel 21 and opposite to each other, each of the recesses 261 has a first plane 262, the second positioning structure 44 includes two protrusions 441 for correspondingly fitting the two recesses 261 and located around the pin 411, each of the protrusions 441 has a second plane 442 matching with the first plane 262 of the corresponding recess 261. In other embodiments, the first positioning structure 26 may include the convex portion 441, the second positioning structure 44 may include the concave portion 261, and the number of the concave portions 261 and the number of the convex portions 441 may be one or three or more in other embodiments, which is not limited to the third embodiment.

By the engagement between the first flat surface 262 of the concave portion 261 and the second flat surface 442 of the convex portion 441, the plurality of second positioning structures 44 are positioned at the plurality of first positioning structures 26, respectively, and therefore, even if the positioning housing 3 in the first embodiment is omitted, the plurality of second connectors 4 do not rotate relative to the plurality of first connectors 2. Therefore, the second connectors 4 can be prevented from rotating in the process of screwing and locking the bolts 6, and the situation that the bolts 6 are difficult to lock is avoided.

In addition, in the third embodiment, a metal gasket 7 is further disposed between the head 61 of the bolt 6 and the conductive pad 52 around the through hole 51 of the second circuit board 5, but not limited thereto.

To sum up, the utility model discloses the inner edge of this second circuit board 5's of electric connection device 100 through hole 51 with clearance G has between the outer fringe of bolt 6, can satisfy from this bolt 6 with the position tolerance requirement between the through hole 51. Furthermore, the positioning housing 3 or the first positioning structures 26 of the plurality of first connectors 2 and the second positioning structures 44 of the plurality of second connectors 4 are engaged with each other, so that the plurality of second connectors 4 are prevented from rotating during the screwing process of the bolt 6 and the screw hole 421, and the bolt 6 is prevented from being locked with difficulty. In some embodiments, the positions and spacing of the first and second connectors 2, 4 can also be located by the channels 33 of the positioning housing 3.

However, the above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the description of the present invention are still included in the scope of the present invention.

Claims (17)

1. An electrical connection device, comprising:

a first circuit board;

a plurality of first connectors arranged in a row on the first circuit board;

the first connector comprises a plurality of first connectors, a plurality of second connectors and a plurality of connecting terminals, wherein each second connector is provided with a contact end part and a connecting end part, the connecting end part is provided with a screw hole, and the contact end parts of the plurality of second connectors are respectively and electrically connected with the plurality of first connectors;

the second circuit board is provided with a plurality of through holes which are respectively aligned with the screw holes of the second connectors so as to respectively pass through the through holes and be in threaded connection with the screw holes through a plurality of bolts, wherein a gap is formed between the inner edge of each through hole and the outer edge of each bolt; and

and the second connectors are arranged on the positioning shell and cannot rotate relative to the positioning shell.

2. The electrical connector assembly of claim 1, wherein the positioning housing has a top side and a bottom side, and a plurality of passages are formed therethrough from the top side to the bottom side, and the plurality of first connectors extend into the plurality of passages from the bottom side, and the plurality of second connectors extend into the plurality of passages from the top side.

3. The electrical connector assembly of claim 2 wherein the positioning housing further has a plurality of first planes respectively adjoining the plurality of channels, each of the second connectors having a second plane that mates with the first plane adjacent the corresponding channel.

4. The electrical connection device as claimed in claim 3 wherein each of said passages is cylindrical and a plurality of said second connectors have peripheral profiles matching the shape of a plurality of said passages.

5. The electrical connection device as claimed in claim 4, wherein a plurality of the second connectors are male connectors and a plurality of the first connectors are female connectors.

6. The electrical connection device as claimed in claim 5, wherein each of the contact ends of the second connector has a pin; each first connector comprises a barrel body and a cage-shaped contact piece which is arranged in the barrel body and electrically connected with the contact pin at the contact end part of the corresponding second connector.

7. The electrical connector of claim 6, wherein the cage contact includes a fixed portion disposed on the barrel and a plurality of resilient contact tabs extending from the fixed portion.

8. The electrical connection device as claimed in claim 4, wherein a plurality of the second connectors are female connectors and a plurality of the first connectors are male connectors.

9. The electrical connection device as claimed in claim 8, wherein each of the first connectors has a pin; the contact end part of each second connector comprises a barrel body and a cage-shaped contact element which is arranged in the barrel body and electrically connected with the corresponding contact pin of the first connector.

10. The electrical connector of claim 9 wherein the cage contact comprises a fixed portion disposed on the barrel and a plurality of resilient contact tabs extending from the fixed portion.

11. The electrical connection device as claimed in claim 1, wherein the positioning housing is disposed on the first circuit board, the first circuit board has a plurality of positioning holes, and the positioning housing has a plurality of positioning posts correspondingly engaged with the plurality of positioning holes.

12. The electrical connection device as claimed in claim 1, wherein the first circuit board has a plurality of mounting holes for mounting a plurality of said first connectors.

13. An electrical connection device, comprising:

a first circuit board;

a plurality of first connectors arranged on the first circuit board in a row, each first connector having a first positioning structure;

the second connectors are provided with a contact end part, a connecting end part and a second positioning structure matched with the first positioning structure, and the connecting end part is provided with a screw hole; and

and the second circuit board is provided with a plurality of through holes which are respectively aligned with the screw holes of the second connectors so as to respectively pass through the through holes by a plurality of bolts to be in screw connection with the screw holes, wherein a gap is formed between the inner edge of each through hole and the outer edge of each bolt.

14. The electrical connector of claim 13, wherein the first positioning structure comprises one of a concave portion and a convex portion, and the second positioning structure comprises the other of the concave portion and the convex portion.

15. The electrical connection device as claimed in claim 13 wherein the first locating structure comprises a recess having a first planar surface and the second locating structure comprises a projection for mating with the recess, the projection having a second planar surface complementary to the first planar surface.

16. The electrical connection device as claimed in claim 13 wherein each of the contact ends of the second connectors further has a pin; each first connector is also provided with a barrel body and a cage-shaped contact element which is arranged in the barrel body and is electrically connected with the contact pin at the contact end part of the corresponding second connector.

17. The electrical connector as in claim 16, wherein the first positioning structure comprises two recesses formed on the barrel and facing each other, each of the recesses having a first flat surface, the second positioning structure comprises two protrusions for corresponding engagement with the two recesses and located around the pin, each of the protrusions having a second flat surface matching the first flat surface of the corresponding recess.

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