TWM495638U - Board to board connector - Google Patents

Description

Board to board connector

The present invention relates to an electrical connector, and more particularly to a board-to-board connector for high frequency signal transmission.

Under the requirement that the electronic device body is actively reduced and the function is maximized, the internal components of the electronic device are not only required to reduce the volume, reduce the height, but also increase the electrical characteristics to conform to the development trend. Therefore, meeting the needs of light and thin, coupled with fast and large data transmission, is an inevitable trend in the development of connectors in the future.

With the proliferation of video and audio materials, the transmission speed of connectors has also increased from Mbps to Gbps. Commonly used as a board-to-board connector for high-frequency, high-speed transmission, adjacent terminals are more likely to interact with each other, such as Crosstalk, Electromagnetic Interference, or Propagation Delay. Therefore, the trend of miniaturization of the board-to-board connector makes the structural design of the length, shape, and arrangement of the conductive paths more important.

The structure of the conventional board-to-board connector is generally designed to correspond to the rubber core and the conductive terminals on the two circuit boards, and the conductive terminals of the two circuit boards are superposed on each other for signal transmission. When the speed of the transmission signal continues to increase, it is easy to generate high-frequency waves that interfere with other electrical equipment. At this time, the board-to-board connector is also susceptible to noise generated by external electronic components, causing signal attenuation or interruption.

So how to solve the lack of high-speed transmission of a large number of signals, while complying with The specification of high-frequency signal transmission is an important issue for those who are engaged in this industry.

The main purpose of the present invention is to provide a board-to-board connector that electrically connects each electrical terminal of the first circuit board to each of the conductive terminals disposed on the second circuit board, so that the signal transmission path is the shortest and effectively reduced. Crosstalk interference in turn transmits high frequency signals.

Another object of the present invention is to provide a board-to-board connector that is connected to an insulator by a limiting rubber block, so that the conductive terminals are easily aligned with the electrical contacts to facilitate soldering.

In order to achieve the above object, the present invention relates to a board-to-board connector including a first circuit board and a second circuit board. The first circuit board is provided with a plurality of electrical contacts, a limiting rubber block for arranging the electrical contacts, and a first grounding piece connecting the two ends of the limiting rubber block, wherein the first grounding piece has at least one fastening portion. The second circuit board is opposite to the electrical contacts and interfaces with the first circuit board. The second circuit board includes an insulator, a plurality of conductive terminals that are inserted into the insulator, and a second grounding piece that connects the two ends of the insulator. The limiting rubber block is engaged with the insulator, and the fastening portion is fastened to the second grounding piece to make the conductive terminals interfere with the electrical contacts.

The creation also has the following effects: the first grounding piece is provided with at least one fastening portion and the second grounding piece is fastened, and has the effect of positioning and holding in addition to the grounding effect. The two short sides of the limiting rubber block and the two short sides of the insulator are respectively provided with corresponding grooves and flanges, so that the two can be misplaced without docking and have a foolproof effect. In addition, the shielding case disposed on the two long sides of the limiting rubber block can electrically contact the butting piece on the long sides of the insulator to further prevent electromagnetic interference (Electro-Magnetic Interference).

100‧‧‧First board

110‧‧‧Electrical contacts

120‧‧‧Limited rubber blocks

122‧‧‧First flange

124‧‧‧First groove

130‧‧‧First grounding piece

140‧‧‧Deduction Department

142‧‧‧Flexible end

144‧‧‧Bend

150‧‧‧Shaded housing

152‧‧‧ first bump

154‧‧‧Bucks

156‧‧‧ Positioning film

200‧‧‧second board

202‧‧‧Positioning holes

210‧‧‧Insulator

212‧‧‧second groove

214‧‧‧second flange

220‧‧‧Electrical terminals

222‧‧‧Weld Department

224‧‧‧ fixed department

226‧‧‧Flexible Department

230‧‧‧Second grounding piece

232‧‧‧Perforation

234‧‧‧ Positioning film

240‧‧‧Fixed block

250‧‧‧Through

252‧‧‧second bump

FIG. 1 is an exploded perspective view of the board of the present invention.

FIG. 2 is another exploded schematic view showing the creation.

Figure 3 is a cross-sectional view showing the creation of the creation before it has been assembled.

Figure 4 is a cross-sectional view showing the assembly of the present invention.

FIG. 5 is a view showing another embodiment of the present invention, that is, a shielding case and a butt piece are respectively mounted on the two circuit boards, but the assembly is not yet assembled.

FIG. 6 is a cross-sectional view showing the shielding case and the butting piece respectively installed on the two circuit boards of the present invention, but not assembled.

Figure 7 is a cross-sectional view of Figure 6 assembled.

The detailed description and technical content of the present invention are described below with reference to the drawings, but the drawings are only for reference and explanation, and are not intended to limit the creation.

As shown in FIG. 1 to FIG. 4, the present invention is a board-to-board connector including a first circuit board 100 and a second circuit board 200. The first circuit board 100 is provided with a plurality of electrical contacts 110, a limiting rubber block 120 for arranging the electrical contacts 110, and a first grounding strip 130 connecting the two ends of the limiting rubber block 120. The first grounding strip 130 has At least one fastening portion 140. As shown in FIG. 1 and FIG. 2, the limiting rubber block 120 is preferably a rectangular bump, and the material includes, but is not limited to, plastic. Each of the electrical contacts 110 is preferably formed in two rows on the surface of the first circuit board 100. The first grounding strip 130 is spaced apart from the two rows of electrical contacts 110 and disposed in parallel on the surface of the first circuit board 100.

In this embodiment, the first grounding piece 130 preferably includes a plurality of fastening portions 140, but The one of the fastening portions 140 can achieve the effect of alignment and holding. The fastening portion 140 includes an elastic end 142 extending from both ends of the first grounding piece 130. Each of the elastic ends 142 has a bent portion 144, and each of the bent portions 144 is bent toward the center of the first grounding piece 130, so that the fastening portion 140 has a substantially U-shaped appearance. Each of the fastening portions 140 is integrally formed with the first grounding piece 130, and the material includes, but not limited to, iron or an alloy thereof.

The second circuit board 200 interfaces with the first circuit board 100 with respect to the electrical contact 110. The second circuit board 200 includes an insulator 210, a plurality of conductive terminals 220 that are inserted into the insulator 210, and a second grounding strip 230 that connects the two ends of the insulator 210. When the first circuit board 100 is docked with the second circuit board 200, the limiting rubber block 120 will engage the insulator 210 therein. At this time, at least one fastening portion 140 is fastened to the second grounding piece 230, and each of the conductive terminals 220 is in contact with each of the electrical contacts 110 to form electrical conduction. Since each of the conductive terminals 220 is only in contact with each of the electrical contacts 110, the signal transmission path is shortened, and crosstalk interference is reduced to transmit high frequency signals.

The second grounding strip 230 further includes at least one through hole 232 and a plurality of positioning pieces 234. The insulator 210 further includes a plurality of pairs of fixed blocks 240 that connect the two sides of the insulator 210 and hold the second grounding strip 230. As shown in FIG. 1 and FIG. 2 , each of the fixing blocks 240 is a pair of right and left holding grounding strips 230 , and the pair of fixing blocks 240 are spaced apart from each other on the second circuit board 200 and connected to both sides of the insulator 210 . The through hole 232 is defined between the two adjacent and fixedly disposed fixing blocks 240, so that the through hole 232 is correspondingly disposed with the fastening portion 140 for fastening the bent portion 144 of the first grounding piece 130, as shown in FIG. . In the embodiment shown in FIGS. 1 and 2, the number of the through holes 232 is identical to the number of the fastening portions 140, including but not limited to three.

Therefore, when the first circuit board 100 is docked with the second circuit board 200, the limiting rubber block 120 is engaged with the insulator 210, so that the conductive terminals 220 are accurately aligned with the electrical contacts 110. contact. At this time, each of the fastening portions 140 is further fastened to each of the through holes 232, so that the two circuit boards 100 and 200 have the effect of alignment and stable holding.

Each of the positioning pieces 234 is further inserted into the positioning hole 202 of the second circuit board 200 such that the second grounding piece 230 is stably inserted into the second circuit board 200. Each of the positioning pieces 234 is connected to one end of the second grounding piece 230 and integrally formed with the second grounding piece 230. Each of the positioning pieces 234 is preferably parallel to the second grounding piece 230 and is vertically inserted into the second circuit board 200.

It should be noted that the two short sides of the limiting block 120 further include a first flange 122 and a first groove 124. The two short sides of the insulator 210 corresponding to the limiting block 120 further include a second groove 212 and a second flange 214. When the limiting block 120 is inserted into the insulator 210, the first flange 122 is engaged with the second groove 124, and the first groove 212 is engaged with the second flange 214 so that the two circuit boards 100 and 200 are not Will be inserted by mistake, and have a foolproof effect.

In the embodiment shown in FIGS. 3 and 4 , each of the conductive terminals 200 further has a soldering portion 222 , a fixing portion 224 , and an elastic portion 226 . The welded portion 222 and the elastic portion 226 are formed at both ends of the fixed portion 224. The soldering portion 222 is soldered to the second circuit board 200, and the fixing portion 224 is fixed to the insulator 210. The elastic portion 226 can elastically abut the electrical contact 110. The number of the conductive terminals 200 is the same as the number of the electrical contacts 110, and is not limited herein.

As shown in FIG. 5, it is another embodiment of the board-to-board connector. In the embodiment, the first circuit board 100 further includes a pair of shielding housings 150. As shown in FIG. 6 and FIG. 7 , each shielding housing 150 further has a first bump 152 , a buckle 154 and a positioning piece 156 . The fastening piece 154 and the positioning piece 156 are respectively disposed on the two long sides of the limiting rubber block 120. The first protruding point 152 is disposed on the fastening piece 154, and each of the first protruding points 152 protrudes toward the first grounding piece 130. Each positioning piece 156 is fixed to the first circuit by soldering or other suitable means. On the board 100. As shown in the figure, each of the shielding shells 150 is preferably disposed on the two long sides of the limiting rubber block 120 in parallel with the first grounding piece 130.

The second circuit board 200 further includes a pair of butting pads 250. Each of the pair of tabs 250 is respectively inserted on the two long sides of the insulator 210 and is not in contact with the conductive terminals 220. As shown in FIG. 5 , each of the butting strips 250 further has a second bump 252 , and the position of the second bump 252 is corresponding to the first bump 152 .

As shown in FIG. 7, when the first circuit board 100 provided with the shielding case 150 is butted to the second circuit board 200 provided with the butting piece 250, the first bumps 152 respectively disposed on the shielding case 150 are connected to the two boards. The second bumps 252 on the sheet 250 are butted to form electrical conduction, which prevents electromagnetic wave (EMI) interference.

While the foregoing description and drawings have disclosed the preferred embodiments of the present invention, it is to be understood that various modifications, various modifications and substitutions may be used in the preferred embodiments of the present invention without departing from the scope of the appended claims. The spirit and scope of this creative principle. It will be appreciated by those skilled in the art that the present invention can be modified in many forms, structures, arrangements, ratios, materials, components and components. Therefore, the embodiments disclosed herein are to be considered as illustrative of the present invention and are not intended to limit the present invention. The scope of this creation is defined by the scope of the appended patent application and covers its legal equivalents and is not limited to the foregoing description.

100‧‧‧First board

110‧‧‧Electrical contacts

120‧‧‧Limited rubber blocks

130‧‧‧First grounding piece

140‧‧‧Deduction Department

142‧‧‧Flexible end

144‧‧‧Bend

200‧‧‧second board

202‧‧‧Positioning holes

210‧‧‧Insulator

220‧‧‧Electrical terminals

230‧‧‧Second grounding piece

232‧‧‧Perforation

234‧‧‧ Positioning film

240‧‧‧Fixed block

Claims (8)

A board-to-board connector includes: a first circuit board, a plurality of electrical contacts, a limiting rubber block for arranging the electrical contacts, and a first ground connecting the two ends of the limiting rubber block a first circuit board having at least one fastening portion; and a second circuit board opposite to the first circuit board opposite to the electrical contacts, the second circuit board comprising an insulator and being inserted a plurality of conductive terminals of the insulator and a second grounding piece connected to one of the two ends of the insulator, wherein the limiting rubber block is engaged with the insulator, and the at least one fastening portion is fastened to the second grounding piece to make the conductive The terminal is in contact with each of the electrical contacts. The board-to-board connector of claim 1, wherein the at least one fastening portion comprises an elastic end extending from both ends of the first grounding piece, each of the elastic ends having a bent portion, each of the bending portions The portion is bent toward the center of the first grounding piece. The board-to-board connector of claim 2, wherein the second grounding piece further comprises at least one perforation and a plurality of positioning pieces, the perforations being fastened by the bent portion of the first grounding piece, each of the positioning pieces being parallel The second ground strip is vertically inserted in the second circuit board. The board-to-board connector of claim 3, wherein the insulator further comprises a plurality of pairs of fixed blocks connecting the two sides of the insulator and holding the second grounding piece, the at least one opening being opened in two adjacently disposed fixing blocks between. The board-to-board connector of claim 1, wherein the limiting block further comprises a first flange and a first recess, the insulator further comprising a second recess and a second flange. The first flange is disposed corresponding to the second groove, and the first groove is disposed corresponding to the second flange. The board-to-board connector of claim 1, wherein each of the conductive terminals has a soldering portion, a fixing portion and an elastic portion, and the soldering portion and the elastic portion are formed at two ends of the fixing portion, the soldering portion Soldering with the second circuit board, the fixing portion is fixed to the insulator, and the elastic portion elastically resists the electrical contact. The board-to-board connector of claim 1, further comprising a pair of shielding shells and a pair of butting tabs, wherein the pair of shielding shells respectively shield the two sides of the limiting rubber block, and the pair of docking pieces are respectively inserted The pair of shielding shells are in contact with the pair of butting sheets on both sides of the insulator to form electrical conduction. The board-to-board connector of claim 7, wherein the pair of shielding shells further have a first bump, the pair of butting strips further having a second bump, the first bump being provided with the second bump Point contact.