CN2368172Y - Electric connector - Google Patents

Abstract

The utility model refers to an electrical connector, which includes a base body, a conductive terminal and a conversion key, wherein a slot is recessed on the base body, and a receiving hole capable of accommodating the conductive terminal is provided on the two side walls of the slot. In addition, first and second cutouts are respectively provided at appropriate positions on the two side walls, and key grooves are provided in the slots at the two cutouts. The conversion key at least includes a protruding body, and the protruding body is provided with an opening or a certain depth of depression for the conductor to be installed inside, and is matched and accommodated in the key groove at the position of the first or second cutout, so as to Different voltage identification circuits are generated, and circuit board plugs suitable for the voltage specifications are provided.

Description

electrical connector

The utility model relates to an electrical connector, in particular to a general-purpose electrical connector that can be directly applied to different working voltages and specification requirements without additionally replacing or installing other electrical connectors on the circuit board.

In order to enhance the function of the computer, an electrical connector for expansion is usually provided on the main circuit board of the computer. The electrical connector is provided with a longitudinally elongated slot, which can be inserted into the card-shaped sub-circuit board according to the contacts set on its edge. Which produces electrical conduction. Such function-expanded sub-circuit boards include network cards, display cards, and sound effects cards. At present, there are two main types of expansion connectors installed on the motherboard. One is the ISA interface, which is an interface developed from the early expansion circuit function, and the transmission rate is relatively slow. The other is the PCI interface, which has a faster transfer rate and is widely used. The existing expansion sub-circuit board using the PCI interface is set with two working voltages of 5V and 3.3V according to its actual work requirements, so as to play normal functions under the two voltages respectively. In order to effectively distinguish between the two working voltages, so that the expansion sub-circuit board can operate normally when it is plugged into the electrical connector, and the components of the sub-circuit board will not be damaged due to different voltages, usually on the electrical connector and sub-circuit board. There are preventive measures. As shown in Figure 5A, the PCI electrical connector 5 suitable for 3.3V working voltage is usually provided with two identification bumps 52, 53 at the appropriate position of the slot 51, and the edge of the board-type sub-circuit board 6 corresponding to it is A slot 61 is provided at the corresponding position. In addition, FIG. 5B shows a PCI interface electrical connector 5' suitable for a 5V working voltage. The electrical connector is also provided with two identification bumps 52', 53' at appropriate positions in its slot 51'. The position of one identifying bump 52 ′ is exactly the same as that of the identifying bump 52 of the electrical connector 5 of the previous specification, and the other identifying bump 53 ′ is different from the other identifying bump 53 of the electrical connector 5 . The position of the slot 62 provided on the sub-circuit board 6 matched with it is also correspondingly adjusted. Therefore, according to the different positions of the identification bumps 53, 53', the sub-circuit board that is set to a specific operating voltage (such as 3.3V) can be restricted from being inserted into another specification (ie, 3.3V) from any direction. 5V) electrical connector, which can effectively protect the sub-circuit board from misplugging and damage. Because the sub-circuit boards of different voltages must be assembled with electrical connectors of the same specifications, this will make electrical connector manufacturers have to produce electrical connectors of different specifications according to different requirements. Therefore, not only the design and manufacturing costs are increased, but also the actual usage status of the user cannot be known in advance, and the two types of electrical connectors must be assembled on the main circuit board, resulting in waste of resources.

The purpose of this utility model is to provide an electrical connector with a switching key device, which can directly generate an identification circuit by means of the plug-in switching key device, so that the specification setting of the electrical connector can be changed quickly, so that it can be adjusted according to the actual situation. It needs to be applied under different working voltages, and electronic components of different specifications can be directly plugged into it.

The technical feature of the utility model is that: the electrical connector includes a seat body, a conductive terminal and a conversion key, etc., wherein one side of the seat body is concavely provided with an elongated slot, and the slot is surrounded by two side walls. The two side walls are provided with a plurality of receiving holes running through the side walls parallel to the concave direction of the slot. The receiving holes can accommodate conductive terminals in them, and at the specific receiving hole positions where the conductive terminals are received A first cutout and a second cutout are provided, and a key groove recessed from the slot is provided on the side of the receiving hole at the positions of the two cutouts, and a The locking part integrally connected with the two side walls. In addition, the conversion key includes a protrusion on the frame body. When the conversion key is assembled on the seat body, the protrusion will be accommodated between the key grooves on both sides of the first cutout or the second cutout, conducting or Cut off the terminals in the receiving holes on both sides to generate an appropriate signal switch, so that the main circuit board can predict in advance which working voltage the electrical connector is set to form a compatible circuit pair with the daughter circuit board to be inserted Respond immediately. Furthermore, the protruding body can also cooperate with the locking part to produce a limiting effect, so that the sub-circuit board with a specific voltage specification and a slot for matching the protruding body and the locking part can be assembled on the electrical connector.

According to the above technical solution, the conversion key of the electric connector of the present invention is inserted into different positions in the slot of the base body, so that the circuit with a specific voltage can be turned on, and the identification circuit can be directly generated, so that the electric connector can be used in different places according to actual needs. under working voltage. Another advantage of the electrical connector of the present invention is that the electrical connector only needs to use a simple element to be inserted into different positions when changing the assembly configuration, so as to save manufacturing cost and design cost, and at the same time, it is very convenient to assemble.

Below with reference to accompanying drawing, the utility model is further described in conjunction with embodiment.

Fig. 1 is a three-dimensional exploded view of the electrical connector of the present invention.

Fig. 2A is a sectional view along line A-A of Fig. 1 .

Fig. 2B is a cross-sectional view schematically illustrating the assembly of the conversion key of the electrical connector of the present invention.

Fig. 2C is a partial sectional view along line C-C of Fig. 1 .

Fig. 3 is a cross-sectional view of the second embodiment of the switching key of the electrical connector of the present invention.

FIG. 4A is a cross-sectional view of another embodiment of the electrical connector of the present invention.

FIG. 4B is a schematic cross-sectional view of another embodiment of the electric connector of the present invention incorporating a shift key.

FIG. 5A is a top view and a side view of a conventional electrical connector for a specific working voltage and a corresponding sub-circuit board.

FIG. 5B is a top view and a side view of a conventional electrical connector for another working voltage and a corresponding sub-circuit board.

As shown in Figure 1, the electrical connector of the utility model includes components such as a base body 2, a conductive terminal 3, a conversion key 4, and a fastener 50, wherein the base body 2 extends in a longitudinal shape, and one side thereof is recessed to a certain depth And the slot 21 is elongated, the slot 21 is surrounded by two side walls 22, 23 and can be inserted into the board type electronic components (as shown in Figs. 5A, 5B). The two side walls 22, 23 are provided with a plurality of receiving holes 24 in rows and through the side walls 22, 23 from the side where the electronic components are inserted to the opposite side. The receiving holes 24 can accommodate conductive terminals 3 for transmitting signals. . Please refer to FIG. 1 and FIG. 2A, the conductive terminal 3 is provided with a stop portion 31, a fixed portion 32, a contact portion 33 and a joint portion 34, wherein the stop portion 31 is provided at one end of the conductive terminal 3, and is properly accommodated and It abuts against the inner wall of the receiving hole 24 close to the insertion surface of the seat body 2 , and the fixing portion 32 is embedded in the wall of the receiving hole 24 near the opposite side, so that the terminal 3 can be properly positioned in the receiving hole 24 . In addition, the contact portion 33 disposed between the resisting portion 31 and the fixing portion 32 extends in the receiving hole 24 and bends toward the slot 21 and protrudes in an arc shape, thereby providing proper elasticity for the terminal to fit in the slot. 21 in contact with other electronic components. Also, the joint portion 34 extends from the fixing portion 32 out of the receiving hole 24 for soldering and fixing with the main circuit board (not shown). In addition, a first cutout 25 and a second cutout 26 are provided at at least two receiving holes 24 at specific positions on the sides of the side walls 22 and 23 where the electronic components are inserted, and the width of the cutout can accommodate at least one terminal receiving hole 24, Parallel slots 21 are recessed on the inner walls of the slots 21 of the corresponding cutouts 25 and 26 and also penetrate the keyway 27 of the seat body 2 . In addition, at the appropriate position in the middle section of the slot 21, there is a locking part 28 that is integrally connected with the two side walls 22, 23, and the setting position of the locking part 28 can be matched with the first and second cutouts 25, 26 respectively. The slots 21 form board-type electronic components suitable for different voltage specifications (as shown in FIGS. 5A and 5B ). In addition, an insertion hole (not shown) is provided on the seat body 2 and the joint portion 34 of the terminal 3 protrudes from the side of the seat body 2 at an appropriate position, which can be used to insert the fastener 5 so that the fastener 5 can be inserted into the The electrical connector 1 is assembled on the main circuit board to produce a holding effect in the front and rear directions.

Please refer to Fig. 1 and Fig. 2A, shown in 2B at the same time again, wherein switch key 4 comprises a frame 41, and this seat frame 41 is extended to one side and has the protruding body 42 with appropriate length, and each on both sides of protruding body 42 A side arm 43 protrudes from it. The extended length and width of the protruding body 42 are approximately equal to the depth and width of the slot 21 provided with the keyway 27, and the periphery of the protruding body 42 is provided with a depression of appropriate depth, so that a groove close to the protruding body is arranged therein. The conductor 44 on the periphery of the body 42 is made of metal and can be conducted with other conductive substances. In addition, notches 45 are respectively formed between the two side arms 43 and the protruding body 42 . The switch key 4 of the utility model is a pluggable type, as shown in Figure 2A, when the switch key 4 is inserted into one of the two cutouts 25,26, the gap 45 of the switch key 4 can just correspond to the cutouts 25, 22, 23 on the two side walls. 26, so that when assembled, the two side arms 43 are stably placed on the two side walls 22, 23 of the base body 2 and protrude from both sides of the base body 2, while the protruding body 42 is inserted into the cutout 25 , 26 in the key groove 27 on both sides of the slot 21, at this time, the conductor 44 on the periphery of the protruding body 42 will be in contact with the protruding conductive terminal 3 in the receiving hole 24 at the key groove 27 at the same time 33, so that the terminal 3 changes from the original separated state to the conductive state, thereby generating an electronic signal to realize the function of circuit switching. Accordingly, not only can the insertion of the conversion key 4 form a basis for restricting the assembly direction of the board-type electronic components, but also use the electronic signal of the switching circuit to change the electrical path of the main circuit board, so that it can pre-generate a suitable working voltage for the board-type sub-assembly. When the circuit board is plugged in, it is directly connected to the application.

Please also refer to Fig. 1 and Fig. 5A, 5B, when the conversion key 4 is inserted into the position of the first notch 25, the protruding body 42 of the conversion key 4 can go deep into the key groove 27 to make the conductor 44 on it The contact portion 33 of the conductive terminal 3 in the corresponding receiving hole 24 on both sides is in contact with each other to generate appropriate telecommunication conversion. At the same time, the conversion key 4 also has a limiting effect, and it can cooperate with the locking portion 28. The restriction makes it possible to insert the sub-circuit board 6 with the slot 61 opened at the corresponding correct position, and the sub-circuit board is set to work under the working voltage of 3.3V as shown in FIG. 5A . In addition, when the switching key 4 is inserted into the position of the second cutout 26, the protruding body 42 can also function to restrict and make the conductor 44 contact and conduct with the conductive terminal 3, so as to generate corresponding telecommunication conversion and cooperate with the locking part 28. A sub-circuit board (as shown in FIG. 5B ) suitable for 5V working voltage is inserted. According to the different insertion positions of the conversion key 4, circuits with different voltages can be turned on, and an identification circuit can be directly generated, so that the electrical connector can be applied to different operating voltages according to actual needs, and immediately supply corresponding sub-circuits board plugged into it. In addition, the electrical connector only needs to use the conversion key 4 to be plugged into different positions of the existing electrical connector when changing the assembly form, so there is no need to add or replace other components for this purpose, so as to save manufacturing costs and design costs , and make assembly easier.

Please refer to Fig. 3 for the second embodiment of the conversion key of the utility model electrical connector. The protruding body 42', the side arms 43' on both sides of the protruding body 42', and the notch 45' respectively formed between the two side arms 43' and the protruding body 42'. In addition, an opening 46' of appropriate depth is provided in the protruding body 42', and a conductor 44' can be installed in the opening 46'. The conductor 44' is stamped and formed by a metal sheet, and one end of it is plugged and fixed in the opening 46' The other end extends outside the opening 46 ′, and a contact portion 47 ′ protrudes outward to contact with other conductive substances. The switch key 4' can also be inserted into the key grooves 27 on both sides of the first notch 25 or the second notch 26 of the seat body 2, when the switch key 4' is inserted into the key grooves 27 on both sides of the two notches 25 and 26 The contact portion 47' of the conductor 44' located in the protruding body 42' will be in contact with the contact portion 33 of the protruding conductive terminal 3 in the receiving hole 24 at the keyway 27, so that the terminal 3 is changed from the original The separated state becomes a conducting state, thereby generating an electronic signal to realize the function of circuit switching. In addition, it can also be used to limit the assembly direction of the board-type electronic components according to the insertion of the conversion key 4', and use the electronic signal of the switching circuit to change the circuit path of the main circuit board, so that it can generate a suitable working voltage in advance for the board-type sub-components When the circuit board is plugged in, it is directly connected to the application.

Please refer to FIG. 4A and FIG. 4B, which are cross-sectional views of another embodiment of the electrical connector of the present invention. As shown in the figure, the contact portion 33 "of the conductive terminal 3 of the electrical connector 2 extends in the receiving hole 24 and extends toward the slot. 21 direction is bent and protrudes into an arc shape, and is in a conducting state in contact with each other before the switch key 4 "is assembled, and the switch key 4" includes a frame 41 "and extends from the frame 41" to one side. The protruding body 42'' of the length and the side arms 43 " on both sides of the protruding body 42 ", the seat frame 41 " and the protruding body 42 " are all insulating materials, and when inserted in the keyway 27, they can be in contact conduction The contact portion 33' of the conductive terminal 3 in the state is separated into a non-contact conduction state, as shown in Figure 4B, so that the conductive terminal 3 changes from the original circuit conduction state to a separate disconnection state, thereby generating an electronic signal to achieve circuit switching function.

Claims (7)

1. An electrical connector, comprising: at least one seat extending longitudinally and provided with a plurality of rows of receiving holes, conductive terminals accommodated in the receiving holes of the seat, and insertable at a specific position of the seat The conversion key on the upper side of the seat body is recessed with a slot, which is characterized in that: a first cutout and a second cutout are opened at a specific position for accommodating the conductive terminal, and there are two cutouts beside the receiving hole. A keyway recessed from the slot; the conversion key has a protrusion of appropriate length and can be inserted between the keyway of the first or second notch. 2. The electrical connector as claimed in claim 1, characterized in that: the protrusion of the conversion key is arranged on a frame formed on its side, and the protrusion is parallel to the frame and has two sides arm, and a gap is formed between the arms on both sides and the protruding body. 3 . The electrical connector as claimed in claim 2 , wherein a recess is formed in the protrusion of the conversion key, and a conductor close to its periphery is disposed in the recess. 4 . 4. The electrical connector according to claim 1 or 2, wherein the protrusion of the conversion key is made of insulating material, and an opening of a suitable depth is opened therein. 5. The electrical connector as claimed in claim 4, characterized in that: a conductor with a contact portion is installed in the opening of the conversion key protrusion, and an end close to the contact portion extends out of the opening for contact with other conductors. The substance conducts, and the opposite end extends into the opening. 6. The electrical connector as claimed in claim 2, wherein the notch of the switching key is mounted on the notch of the corresponding side wall. 7. The electrical connector as claimed in claim 1, characterized in that: the contact portion of the conductive terminal is usually in a closed contact state, and the protrusion of the switch key is made of insulating material, which can penetrate into the key groove and make the contact of the conductive terminal The contact part is in the state of isolation and disconnection.

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