CN101471513B

CN101471513B - Socket connector with plug detection function

Info

Publication number: CN101471513B
Application number: CN2007103054145A
Authority: CN
Inventors: 金忠达
Original assignee: Asustek Computer Inc
Current assignee: Asustek Computer Inc
Priority date: 2007-12-28
Filing date: 2007-12-28
Publication date: 2010-09-15
Anticipated expiration: 2027-12-28
Also published as: CN101471513A

Abstract

A socket connector with plug detection function comprises a housing; a plurality of metal dome pins arranged in the housing in parallel; a first detection pin formed on one side of the plurality of metal dome pins and coupled with a system ground end; and a second detection pin formed on the other side of the plurality of metal dome pins and coupled with a pull-up resistor so as to endow the second detection pin with a high level; wherein the second detection pin includes an elastic metal arm extending to the first detection fin and formed above the first detection fin; and the first metal dome fin of the plurality of metal dome fins is bent to press the elastic metal arm of the second detection fin to keep contact with the first detection fin when a telephone wire plug is inserted into the socket connector.

Description

The socket connector of tool plug detection function

Technical field

The present invention is meant a kind of socket connector of tool plug detection function, particularly a kind ofly can judge the grid line socket connector of the plug pattern of inserting according to the potential change that detects pin.

Background technology

With the grid line socket of RJ-45 pattern now, good fool proof design is not generally all arranged, so the telephone line plug of tool kindred type (being the RJ-11 plug) can insert at an easy rate in the grid line socket.Yet, because the difference of telephone wires signals and grid line signal is very big, therefore when telephone line plug misplugs into the grid line socket, except meeting causes the electronic installation damage of grid line socket rear end, also can make the telephone line of telephone line plug be in short-circuit condition, the situation that causes the opposing party to dial in.

For instance, please refer to Fig. 1, Fig. 1 is the circuit diagram of 12 of a telephone set 11 and local side switches in traditional Public Switched Telephone Network.When telephone set 11 is not connecing time-out, words seat switches (Hook Switch) the 112nd are in open-circuit condition, local side switch 12 offers the dc operation bias voltage of telephone set 11 at this moment, be the voltage of end line (Tip) 13 with respect to loop wire (Ring) 14, between 36 volts to 60 volts, decide greatly on country variant; And as when incoming call, 12 of local side switches on the dc operation bias voltage, produce jingle bells to drive telephone set 11 with up to a hundred volts interchange ringing signal (40～150Vpp AC) superposition.In this case, when telephone wire mispluged into the grid line socket, the electronic equipment of grid line socket rear end (as notebook etc.) was with may be because of can't bearing too high voltages such as above-mentioned Dc bias and interchange ringing signal, and situation about being damaged.In addition, please refer to Fig. 2, Fig. 2 is the schematic diagram of the built-in pulse transformer 20 (Pulse Transformer) of legacy network line socket.Pulse transformer 20 includes input RX0+～RX3+, RX0-～RX3-and output TX0+～TX3+, TX0-～TX3-, be used for respectively receiving and output network line signal, preventing the interference of electromagnetic noise, and then promote the reliability that the grid line socket receives the high frequency differential wave.In Fig. 2, when telephone line plug misplugs into the grid line socket, end line 23 and loop wire 24 in the telephone wire are respectively coupled to input RX2+ and RX2-, and since input RX2+ and RX2-at pulse transformer 20 internal short-circuits, words seat switch 112 among the similar Fig. 1 of telephone line this moment is in the state of off-hook (Off-Hook), the so situation that will cause phone to put through.

On the other hand, because the research and development of notebook are towards lightening development at present, it is also fewer and feweri that the notebook peripheral hardware can be used to be provided with the space of input/output port, add battery, CD-ROM drive and fan heat radiation outlet etc., therefore if telephone line socket and grid line socket can be integrated, can save the required occupation space of socket effectively.

Summary of the invention

Therefore, the invention provides a kind of socket connector of tool plug detection function, in order to detect the pattern of the plug that inserts.

The present invention discloses a kind of socket connector of tool plug detection function, and this socket connector includes a housing; A plurality of metal dome pins are set up in parallel in this housing; One first detects pin is formed at a side of these a plurality of metal dome pins, and is coupled to an end systematically; And one second detect the opposite side that pin is formed at these a plurality of metal dome pins, and be coupled to a pull-up resistor, so that this second detects pin and have a high potential, this second detects pin and includes one and first detect angle and extend and be formed at this first elastic metallic arm that detects pin top to this; Wherein when a telephone line plug inserted this socket connector, one first metal dome pins of these a plurality of metal dome pins was bent, with this first detection pin of this elastic metallic arm contact that presses down this second detection pin.

The embodiment of the invention can be judged the plug pattern of being inserted according to the potential change that detects pin, and then the control back end electronics is switched reception grid line signal and telephone wires signals.Thus, the embodiment of the invention can combine telephone line socket and grid line socket, to save the required occupation space of socket effectively.

Description of drawings

Fig. 1 is the circuit diagram of a telephone set and a local side inter-exchange in traditional Public Switched Telephone Network.

Fig. 2 is the schematic diagram of the built-in pulse transformer of legacy network line socket.

Fig. 3 is the rearview of a socket connector of embodiment of the invention tool plug detection function.

Fig. 4 is a metal dome pins and detect the rearview of pin among Fig. 3.

Action schematic diagram when Fig. 5 and Fig. 6 are respectively embodiment of the invention socket connector insertion network wire plug and telephone line plug.

Embodiment

Please refer to Fig. 3, Fig. 3 is the rearview of a socket connector 30 of embodiment of the invention tool plug detection function.Socket connector 30 includes a housing 31, metal dome pins Pin1～Pin8 and detects pin PinA and PinB.Metal dome pins Pin1～Pin8 is set up in parallel in housing 31, is used for received signal respectively.Detect pin PinA and be formed at the side of metal dome pins Pin1～Pin8, and be coupled to one and systematically hold GND.Detect the opposite side that pin PinB is formed at metal dome pins Pin1～Pin8, and be coupled to one and draw high (Pull-High) resistance R 1, have a high potential so that detect pin PinB, wherein detect pin PinB and include one in addition to detecting the elastic metallic arm 32 that pin PinA extends and be formed at detection pin PinA top.Preferably, socket connector 30 is grid line sockets of a RJ-45 pattern, and the side metal dome pins Pin1 among metal dome pins Pin1～Pin8 includes inwardly and the downward metal clips 33 of bending in addition.

For convenience of description, please continue with reference to figure 4, Fig. 4 only draws metal dome pins Pin1～Pin8 among Fig. 3 and detects the rearview of pin PinA and PinB.Metal dome pins Pin1～Pin8 is the normal pin of the grid line socket of RJ-45 pattern, therefore when socket connector 30 inserts the network wire plug of a RJ-45 pattern, the signal of network wire plug will be received by metal dome pins Pin1～Pin8 respectively, it is that this area tool knows that usually the knowledgeable knows, and does not give unnecessary details at this.Compared to the RJ-45 plug, telephone line plug only comprises six pin pins, and its pin pin spacing and RJ-45 plug are similar, therefore when socket connector 30 inserted the telephone line plug of a RJ-11 pattern, the housing of this telephone line plug can be urged to the metal dome pins Pin1 and the Pin8 of the left and right sides of socket connector 30.In this case, the embodiment of the invention can make the elastic metallic arm 32 contact detection pin PinA that detect pin PinB by the pressing action of metal dome pins Pin1, and according to the potential change that detects pin PinB, judges the plug pattern of being inserted.

For instance, please refer to Fig. 5 and Fig. 6, the action schematic diagram when Fig. 5 and Fig. 6 are respectively embodiment of the invention socket connector 30 insertion network wire plugs and telephone line plug.As shown in Figure 5, when inserting when the network wire plug of socket connector 30 insertions one RJ-45 pattern or without any plug, since detect pin PinB can with detect pin PinA and contact, so the current potential that detects pin PinB is still kept and is drawn high the high potential that resistance R 1 is provided.On the other hand, as shown in Figure 6, when socket connector 30 inserts the telephone line plug of a RJ-11 pattern, the metal dome pins Pin1 of the left and right sides of socket connector 30 and Pin8 can be pressed onto lowermost end by the housing of telephone line plug significantly, therefore the elastic metallic arm 32 that make to detect pin PinB can touch and detect pin PinA, and the current potential that causes detecting pin PinB is changed into the current potential (promptly systematically holding the current potential of GND) of detection pin PinA.

Therefore, the embodiment of the invention can be according to the potential change that detects pin PinB, judge the plug pattern inserted, so with the signal that metal dome pins Pin1～Pin8 is received switch be coupled to a network signal processing module and a telephone signal processing module between (not being shown among the figure).Thus, the embodiment of the invention can combine telephone line socket and grid line socket, to save the required occupation space of socket effectively.

It should be noted that.The embodiment of the invention only is used as an explanation for example, and this area tool knows that usually the knowledgeable revises when making according to the actual requirements suitably, and it also belongs to the category of this area.For instance, the detection pin PinA of socket connector 30 can also itself metal shell replace, thus, the embodiment of the invention only needs can reach identical measuring ability by an extra detection pin, perhaps the embodiment of the invention can make in addition the current potential that detects pin change etc. by the pressing action of metallic elastic pin Pin8, and corresponding variation like this also belongs to scope of the present invention.

In sum, the embodiment of the invention can be judged the plug pattern of being inserted according to the potential change that detects pin, and then the control back end electronics is switched reception grid line signal and telephone wires signals.Thus, the embodiment of the invention can combine telephone line socket and grid line socket, to save the required occupation space of socket effectively.

The above only is the preferred embodiments of the present invention, and all equalizations of doing according to claims of the present invention change and modify, and all should belong to covering scope of the present invention.

Claims

1. the socket connector of a tool plug detection function is characterized in that, comprising:

A plurality of metal dome pins;

One first detects pin, is formed at a side of above-mentioned a plurality of metal dome pins, and is coupled to an end systematically; And

One second detects pin, be formed at the opposite side of above-mentioned a plurality of metal dome pins, and be coupled to one and draw high resistance, so that above-mentioned second detect pin and have a high potential, above-mentioned second detects pin includes one and detects pin to above-mentioned first and extend and be formed at the above-mentioned first elastic metallic arm that detects the pin top;

Wherein, when a telephone line plug inserted above-mentioned socket connector, one first metal dome pins of above-mentioned a plurality of metal dome pins was bent, and below pressed the above-mentioned elastic metallic arm contact above-mentioned first of stating the second detection pin and detected pin.

2. socket connector according to claim 1 is characterized in that, wherein above-mentioned first metal dome pins is side metal dome pins of above-mentioned a plurality of metal dome pins.

3. socket connector according to claim 1 is characterized in that, wherein above-mentioned first metal dome pins includes one and inwardly reaches the metal clips of bending downwards.

4. socket connector according to claim 1 is characterized in that, wherein when the above-mentioned second above-mentioned elastic metallic arm contact above-mentioned first that detects pin detected pin, above-mentioned second current potential that detects pin equaled the current potential of the above-mentioned first detection pin.

5. socket connector according to claim 1, it is characterized in that, wherein above-mentioned second detects pin is coupled to a plug testing circuit in addition, above-mentioned plug testing circuit is used for according to the current potential of the above-mentioned second detection pin, judge the plug pattern of being inserted, be coupled between a network signal processing module and the telephone signal processing module so that above-mentioned a plurality of metal dome pins are switched.

6. socket connector according to claim 1 is characterized in that, the wherein above-mentioned first detection pin is a metal shell of above-mentioned socket connector.

7. socket connector according to claim 1 is characterized in that, above-mentioned socket connector is the grid line socket of a RJ-45 pattern.

8. socket connector according to claim 1 is characterized in that, wherein above-mentioned telephone line plug is the plug of a RJ-11 pattern.