CN114122839A - Connector with plugging counting detection function - Google Patents
Connector with plugging counting detection function Download PDFInfo
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- CN114122839A CN114122839A CN202111249874.7A CN202111249874A CN114122839A CN 114122839 A CN114122839 A CN 114122839A CN 202111249874 A CN202111249874 A CN 202111249874A CN 114122839 A CN114122839 A CN 114122839A
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- 238000001514 detection method Methods 0.000 title claims abstract description 104
- 238000003780 insertion Methods 0.000 claims abstract description 17
- 230000037431 insertion Effects 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 3
- 230000008569 process Effects 0.000 claims abstract description 3
- 239000004020 conductor Substances 0.000 claims description 29
- 239000012212 insulator Substances 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 22
- 238000004891 communication Methods 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 230000008859 change Effects 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 7
- 230000032683 aging Effects 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
- G01R31/69—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board of terminals at the end of a cable or a wire harness; of plugs; of sockets, e.g. wall sockets or power sockets in appliances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention relates to a connector with an insertion counting detection function, which comprises a socket and a plug, wherein the socket comprises a socket shell, a socket detection contact element and a socket printed board part, and a first coaxial jack which is inserted with the rear end of the socket detection contact element is welded on the socket printed board part; the plug comprises a plug shell, a plug detection contact element and a plug printed board part, wherein a second coaxial jack which is spliced with the rear end of the plug detection contact element is welded on the plug printed board part; a first signal collecting circuit and a first MCU are integrated on the socket printed board part, and a second signal collecting circuit and a second MCU are integrated on the plug printed board; when the head seat is inserted, the socket detection contact element is in contact conduction with the plug detection contact element, the first signal collecting circuit and the second signal collecting circuit can detect a contact conduction signal and transmit the contact conduction signal to the corresponding MCU, and the MCU respectively processes the contact conduction signal, so that the independent insertion counting and insertion in-place detection functions of the plug and the socket are realized.
Description
Technical Field
The invention belongs to the technical field of connectors, and particularly relates to a connector with an insertion counting detection function.
Background
At present, the connector is mainly applied to electronic systems in the fields of automobiles, industry, medical treatment, aerospace, weaponry and the like, and mainly realizes electrical connection and signal energy transmission. When the energy source is used as a main interface of an energy source, due to the fact that high power is transmitted for a long time, the contact part of the contact pin and the jack contact element is easy to burn, so that the equipment cannot work, once the fault occurs, the equipment is shut down, the whole system is broken down, and further a serious safety accident is caused. For example, the power connector is an energy inlet in an aerospace vehicle cabin, and if a fault (contact breaking, aging and short circuit) occurs, the aerospace vehicle can have serious faults such as functional failure and the like. Other measures are therefore required to improve the reliability of the connector.
The traditional connector is a passive device, so the internal state of the traditional connector is unknown, and once a fault occurs, the traditional connector can only be passively repaired or replaced. In order to realize the visualization of the real-time state inside the connector and the detection and alarm of faults and ensure the safe work of system equipment, a working state self-monitoring module capable of being embedded into the connector is urgently developed, and the real-time monitoring function of key characteristic quantity (such as plugging and unplugging service life) directly related to the working state of the connector is realized, so that the sudden failure of the key characteristic inside the connector is avoided, unpredictable impact is caused to the system, and the safety reliability and the maintenance economy of the weapon equipment are improved. The connector is designed against the self health fault of the connector, namely structural fault or aging of the connector, the most common fault is aging fault, namely contact aging and performance degradation and the like are caused after the connector runs for a long time or is subjected to multiple plugging and unplugging operations, so that great hidden danger is generated on the running of a system, and the system must be reminded of timely maintenance and replacement. The contact aging fault can be monitored by the plugging and unplugging times, and when the connector is monitored to reach a set plugging and unplugging service life threshold value, an alarm is given to prompt that the connector has a health state fault. Therefore, the plugging times can be used as the characteristic value for judging the self health fault of the connector. In order to realize the functions of monitoring the plugging and unplugging service life and prompting the plugging and unplugging in place, the invention provides a novel connector with a plugging and unplugging frequency counting function.
At present, the number of times of plugging and unplugging the connector is counted by external equipment such as a mechanical life tester, when the test method is used, the connector is in a non-working state, and the test method can only be used for counting the mechanical life threshold of the connector, cannot monitor the working state of the connector in real time and does not have the prompt function of plugging in place.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a connector with a plugging counting detection function, which can realize the functions of independently monitoring the plugging times of a plug/socket, prompting the plugging in place and outputting plugging time data, and further realize the judgment and alarm of the current state of the connector.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. The connector with the plugging counting detection function comprises a socket and a plug which are matched, wherein the socket comprises a socket shell, a socket detection contact element and a socket printed board part; the plug comprises a plug shell, a plug detection contact element and a plug printed board part, the plug detection contact element is installed in the plug shell through a plug insulator, and a second coaxial jack which is spliced with the rear end of the plug detection contact element is welded on the plug printed board part; a first signal collecting circuit and a first MCU which are connected are integrated on the socket printed board part, and a second signal collecting circuit and a second MCU which are connected are integrated on the plug printed board;
when the plug is plugged into the socket, the socket detection contact element is in contact conduction with the plug detection contact element, the first signal collection circuit and the second signal collection circuit can both detect a contact conduction signal and transmit the contact conduction signal to the corresponding MCU, the first MCU and the second MCU respectively process the contact conduction signal, so that independent plugging counting of the plug and the socket is realized, and meanwhile, the contact conduction signal (electric signal) has the function of plugging in-place prompting.
Further, the socket detection contact element comprises a jack outer conductor and a socket detection contact pin coaxially sleeved in the jack outer conductor; the plug detection contact element comprises a contact pin outer conductor and a plug detection contact pin coaxially sleeved in the contact pin outer conductor; when the plug is inserted into the socket, the outer conductor of the contact pin is inserted into the outer conductor of the jack, and the socket detection contact pin is contacted with the plug detection contact pin.
Furthermore, the front end of the socket detection contact pin is provided with a spring pin assembly, the spring pin assembly comprises a spring and a contact, the contact is assembled in an accommodating hole formed in the front end of the socket detection contact pin in a sliding mode along the plugging direction, and the spring is installed in the accommodating hole and connected with the rear end of the contact; when the plug is not inserted into the socket, under the action of the spring, the front end of the accommodating hole is in stop fit with the contact in the axial direction; when the plug is inserted into the socket, the contact is in elastic contact with the front end of the plug detection contact pin.
Furthermore, the first MCU and the second MCU respectively comprise an AD conversion module, a threshold voltage comparison module and a plug counting module which are sequentially connected, the AD conversion module in the first MCU is connected with the first signal collecting circuit, and the AD conversion module in the second MCU is connected with the second signal collecting circuit.
Furthermore, the socket also comprises a socket tail cable accessory, the socket tail cable accessory comprises a socket tail shell, a socket wire sealing body and a socket cable assembly, the socket cable assembly penetrates through the socket wire sealing body and is connected with a socket printed board part, the socket tail shell is connected to the rear end of the socket shell, the socket wire sealing body is fixed inside the rear end of the socket tail shell, and the socket printed board part is fixed in the socket tail shell through a first supporting shell;
the plug also comprises a plug tail cable accessory, the plug tail cable accessory comprises a plug tail shell, a plug wire sealing body and a plug cable assembly which is arranged in the plug wire sealing body in a penetrating mode and connected with a plug printed board component, the plug tail shell is connected to the rear end of the plug shell, the plug wire sealing body is fixed inside the rear end of the socket tail shell, and the plug printed board component is fixed in the plug tail shell through a second supporting shell.
Further, the socket detection contact is arranged on the central axis of the socket insulator; the plug detection contact is disposed on a central axis of the plug insulator.
Furthermore, a first CAN bus communication unit connected with the first MCU is integrated on the socket printed board part, and a second CAN bus communication unit connected with the second MCU is integrated on the plug printed board part; the CAN bus communication unit CAN send plugging life data to an upper computer through a socket/plug cable assembly.
Furthermore, the socket printed board part comprises a first socket printed board and a second socket printed board which are arranged in parallel along the front-back direction, the first socket printed board and the second socket printed board are electrically connected through a flexible board or a hair button, the rear end of the first coaxial jack is connected to the first socket printed board, and the second socket printed board is connected with the socket cable assembly; the plug printed board part comprises a first plug printed board and a second plug printed board which are arranged in parallel along the front-back direction, the first plug printed board and the second plug printed board are electrically connected through a flexible board or a hair button, the rear end of a second coaxial jack is connected to a second socket printed board, and the second plug printed board is connected with the plug cable assembly.
Furthermore, the socket printed board part is fixed in the socket tail shell through the first supporting shell; the plug printed board part is fixed in the plug tail shell through the second support shell.
Furthermore, the jack outer conductor and the socket detection contact pin are relatively fixed through an injection insulator, the contact pin outer conductor and the plug detection contact pin are relatively fixed through an injection insulator, and insulators in the socket/plug detection contact piece are all machined polyethylene insulators.
By means of the technical scheme, the invention has the beneficial effects that:
1. the invention can realize the independent monitoring of the plugging times of the plug and the socket of the connector, and has the functions of prompting the plugging in-place detection function and outputting the plugging time data, thereby realizing the judgment and the alarm of the current state of the connector. The insertion in-place detection function has extremely long mechanical life and extremely high response speed, and can realize the real-time monitoring of the detection of the insertion characteristic during the work of the connector. The plug-in counting data of the plug end and the socket end can be stored in a power-down mode without continuous power supply.
2. In order to realize the functions of monitoring the plugging times of the connector and prompting the plugging in place, and ensure the accuracy of counting, and simultaneously, the socket/plug detection contact element adopted by the invention can be embedded into the connector body, adopts a coaxial contact element, has the characteristics of high reliability and strong environment resistance, and is very suitable for being used in the connector.
3. The structure of the invention does not change the original signal contact piece of the connector; the printed board part positioned in the double-end tail cable accessory can well adapt to the structure of the connector, and does not influence the signal transmission of the connector; the power port and the communication interface introduced by the active end of the connector are both low-frequency small signals, and cannot influence and interfere the signals transmitted by the original signal contact of the connector, so that the electrical performance of the connector is not influenced. The size of the insertion surface of the connector and the size of the tail end of the plug and the socket, and the external structure size of the plug and the socket do not need to be changed.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a connector with a plugging count detection function according to the present invention.
Fig. 2 is a schematic diagram of the first coaxial jack, the socket detection contact, the plug detection contact and the second coaxial jack in the invention, which are sequentially inserted and matched.
Fig. 3 is a schematic block diagram of a plug life self-detection circuit of the socket terminal according to the present invention.
Detailed Description
The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1 to 3, a connector with plug-in count detection function includes a plug and a socket that are adapted to each other, and one end of the plug and the socket that are inserted into each other is used as the front end of the plug and the socket; the socket comprises a socket shell 11, a socket insulator 12, a socket detection contact 13, a socket contact, a socket printed board part and a socket tail cable accessory; the plug includes a plug housing 21, a plug insulator 22, a plug sense contact 23, a plug contact, a plug printed board assembly, and a plug tail cable attachment.
At the socket end, the socket insulator 12 is fixedly mounted in the socket housing 11 by means of bonding, force fitting, step limiting or the like, the socket insulator 12 is used for fixedly mounting the socket contact and the socket detection contact 13, and the socket detection contact 13 is located on the central axis of the socket insulator 12 and does not affect the original node arrangement of the socket contact. The socket tail cable accessory comprises a socket tail shell 14, a socket wire sealing body 15 and a socket cable assembly which is arranged in the socket wire sealing body 15 in a penetrating mode and connected with a socket printed board part, the socket tail shell 14 is connected to the rear end of the socket shell 11, and the socket wire sealing body 15 is installed in the socket tail shell 14 in an interference mode and plays a role in shell sealing and cable sealing. The socket printed board components are fixed in the socket tail shell 14, in this embodiment, the socket printed board components include a first socket printed board 16 and a second socket printed board 17 which are arranged in parallel at intervals in the front-back direction, the first socket printed board 16 and the second socket printed board 17 are electrically connected through a flexible board or a hair button, the first socket printed board and the second socket printed board are both fixed in the socket tail shell 14 through a first supporting shell, and the fixing mode is not limited to screw compression. The socket printed boards are arranged in parallel along the axial direction, so that the circuit layout area is enough on the premise that the size of the connector is not changed, the compatibility with the existing connector is ensured, the appearance size and the installation size of the connector are kept unchanged, and the original model number connector is conveniently and quickly replaced. A first coaxial jack 19 is welded on the first socket printed board 16, and the first coaxial jack 19 is used for being in plug-in fit with the rear end of the socket detection contact element 13.
At the plug end, the plug insulator 22 is fixedly mounted in the plug housing 21 by means of bonding, force fitting, or the like, the plug insulator 22 is used for mounting a plug contact and a plug detection contact 23, the plug contact is used for corresponding plug-in fit with the socket contact, and the plug detection contact 23 is located on the central axis of the plug insulator 22. The plug tail cable accessory comprises a plug tail shell 24, a plug wire sealing body 25 and a plug cable assembly 31 which is arranged in the plug wire sealing body 25 in a penetrating mode and is connected with the plug printed board part; the plug tail shell 24 is arranged at the rear end of the plug shell 21, and the plug wire sealing body 25 is arranged in the plug tail shell 24 in an interference mode to play a sealing role. The plug printed board part is fixed in the plug tail shell, similar to the socket end, the plug printed board part comprises a first plug printed board 26 and a second plug printed board 27 which are arranged in parallel at intervals in the front and back, the first plug printed board 26 and the second plug printed board 27 are electrically connected through a flexible board or a hair button connector, and the first plug printed board/the second plug printed board are fixed in the plug tail shell 24 through a second supporting shell 28 and matched screws. A second coaxial jack 29 is welded on the first plug printed board 26, the second coaxial jack 29 is used for being in plug-in fit with the rear end of the plug detection contact 23, and the front end of the plug detection contact 23 is used for being in plug-in fit with the socket contact 13. In other embodiments, only one socket printed board/plug printed board may be provided, or three or more socket printed boards may be provided at intervals in the front-rear direction, which is not limited in the present invention.
In this embodiment, the front end of the plug housing is provided with a connection cap 30, and the connection cap 30 is used for being fast connected with the socket housing through threads, so as to realize locking after the head base is plugged.
The socket detection contact 13 is a coaxial jack contact, and the plug detection contact is a coaxial pin contact matched with the coaxial jack contact. Specifically, the socket detection contact element 13 includes a jack outer conductor 131 and a socket detection pin 132 coaxially sleeved in the jack outer conductor 131, the jack outer conductor 131 and the socket detection pin 132 are relatively fixed by an injection molded insulator, the insulator is preferably an machined polyethylene insulator, that is, the jack outer conductor and the socket detection pin are relatively positioned by interference fit of the middle polyethylene insulator and positioning of an internal step structure; the inner jack and the outer jack of the first coaxial jack and the second coaxial jack are fixed in an insulating mode relatively through injection insulators. The plug detection contact 23 comprises a pin outer conductor 231 and a plug detection pin 232 coaxially sleeved in the pin outer conductor 231, and the pin outer conductor and the plug detection pin are relatively positioned through an injection molded polyethylene insulator.
The front end of the socket detection pin 131 is provided with a spring pin assembly, the spring pin assembly comprises a spring 133 and a contact 134, and the contact 134 is slidably assembled in an accommodating hole 135 formed in the front end of the socket detection pin along the front-back direction; a spring 133 is installed between the contact 134 and the receiving hole 135 for providing a forward pushing force or a restoring force to the contact; the forward ends of the receiving holes 135 are in axial stop engagement with the contacts 134 to prevent the contacts from moving out of the receiving holes when the header is not inserted. In the state that the plug and the socket are plugged, the pin outer conductor 231 is inserted into the jack outer conductor 131, and the front end of the socket detection pin 132 is in elastic contact with the spring pin assembly of the plug detection pin 232, so that reliable electrical contact conduction is realized. The first coaxial jack 19 is inserted into the jack outer conductor 131 and the rear end of the socket detection pin 132 is inserted, namely, the outer hole of the first coaxial jack is inserted into the jack outer conductor, and the socket detection pin is inserted into the inner hole of the first coaxial jack; the second coaxial jack 29 is inserted into the pin outer conductor 231 and the rear end of the plug detection pin 232 is inserted, that is, the outer hole of the second coaxial jack is inserted into the pin outer conductor, and the plug detection pin is inserted into the inner hole of the second coaxial jack; the four coaxial contact elements of the coaxial jack with the two ends and the detection contact pin are in plug-in fit, so that coaxial signal transmission is realized. Compared with a common needle/hole contact element, the number of occupied holes can be reduced by using the coaxial contact element, the two paths of power supplies which are originally needed can be realized only by one path of coaxial contact element, the connector is convenient to integrate and miniaturize, the application range is expanded, and the coaxial contact element transmits signals more stably.
As shown in fig. 3, a first signal collecting circuit, a first MCU and a first CAN bus communication unit are integrated on the socket printed board component, the first signal collecting circuit is used for collecting the electric potential at the electric connection position of the first coaxial jack and the socket printed board component, the output end of the first signal collecting circuit is connected with the first MCU, and the first MCU is connected with the first CAN bus communication unit. Similarly, a second signal collecting circuit, a second MCU and a second CAN bus communication unit which are connected in sequence are also integrally arranged on the plug printed board part, and the connection mode and the realized function of the second signal collecting circuit, the second MCU and the second CAN bus communication unit are the same as those of the socket end and are not repeated. The first coaxial jack is generally set to be in a low level, the coaxial contact piece at the plug end is in a high level, the potential changes after the head seat is plugged, and the signal collecting circuit collects the potential signal changes. The first MCU and the second MCU are respectively provided with an AD conversion module, a threshold voltage comparison module and a plug counting module which are sequentially connected, and the AD conversion module is connected with the signal collecting circuit and used for converting potential change (analog quantity) collected by the signal collecting circuit into digital quantity. In addition, each MCU also has a fault judging unit, and when the header is inserted, if the socket detection contact and the plug detection contact are not conducted, the fault can be output from the connector. In this embodiment, two printed boards with counting function are disposed at the socket end, the first MCU and the first CAN bus communication unit may be integrated on the second socket printed board 17 at the rear end, and the first signal collecting circuit is integrated on the first socket printed board 16.
When the plug and the socket are in a non-plugging state, the plug detection contact element is separated from the socket detection contact element, no signal is input into the printed board ports at the two ends of the head seat, and the situation that the plug and the socket are not plugged in place is prompted. When the plug and the socket are plugged, the socket detection contact pin is contacted with the plug detection contact pin, the contact is stressed to enable the spring to deform, the coaxial contact elements at the two ends of the head seat are conducted, the potentials at the two ends jump after the coaxial jack contact element at the seat end and the coaxial contact pin contact element at the head end are plugged, the potential change is always continuous in a state of being plugged in place, and the potential change signal has a function of prompting the plugging in place at the same time; for example, the detection range of the insertion in-place detection function is 0-1 mm, and the detection precision is 0.5 +/-0.2 mm. After the signal collecting circuits of the plug end and the socket end collect potential change signals, the signals are firstly amplified and then sent to the MCU, the MCU converts the potential change signals (analog quantity) into digital quantity, and then the obtained data are preprocessed and compared with a preset threshold voltage when the plug end and the socket end are plugged in place, so that whether plugging operation is carried out or not is judged. When the plug and the socket of the connector are inserted in place, the plug detection contact and the socket detection contact are also inserted in place, the input potential of the printed board port signals at the two ends of the head seat is changed and lasts for a period of time, the connector is judged to be inserted into the head seat once according to the change, and the MCU at the two ends of the head seat records primary data; in addition, each MCU in the plug/socket CAN also send service life data to the upper computer through the corresponding CAN bus communication unit according to a specified period. Because the socket printed board part and the plug printed board part are integrated with the MCU, the signal acquisition circuit and the CAN bus communication unit, the invention CAN realize the independent counting of the plug end and the socket end; and the plug-in counting data at the plug/socket end can be stored in a power-down mode without continuous power supply.
In this embodiment, electronic components such as a power supply chip and a power supply bus chip are further welded to the socket printed board component, so that an external power supply voltage is converted into a working voltage required by each component, and the power supply chip and the power supply bus chip are preferably integrated on the second socket printed board. Therefore, the plug and the socket are both passive connectors and are supplied with power from the outside, when the plug cable assembly is installed at the plug end, the plug cable assembly is inserted into a contact pin of the plug printed board assembly, the function of counting the plug plugging service life is realized, and the plug cable assembly can output the plug plugging service life data of the socket plugged with the plug cable assembly. The detection function of the invention realizes the single-end power supply of the plug, and the socket can be supplied with power through the transmission of the coaxial contact element after the head seat is plugged.
The size, material type, number and installation position of each component described in this embodiment are merely exemplary, for example, the wire sealing body inside the plug/socket housing, the style and material of the insulator, the number of plug/socket contacts, etc. are all specific requirements; various other embodiments and modifications within the scope of the claims of the present invention will be apparent to those skilled in the art, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention will still fall within the technical scope of the present invention by those skilled in the art without departing from the technical scope of the present invention.
Claims (10)
1. The utility model provides a connector with plug-in count detects function, includes socket and plug of looks adaptation, its characterized in that: the socket comprises a socket shell, a socket detection contact element and a socket printed board part, wherein the socket detection contact element is installed in the socket shell through a socket insulator, and a first coaxial jack which is connected with the rear end of the socket detection contact element in an inserted mode is welded on the socket printed board part; the plug comprises a plug shell, a plug detection contact element and a plug printed board part, the plug detection contact element is installed in the plug shell through a plug insulator, and a second coaxial jack which is spliced with the rear end of the plug detection contact element is welded on the plug printed board part; a first signal collecting circuit and a first MCU which are connected are integrated on the socket printed board part, and a second signal collecting circuit and a second MCU which are connected are integrated on the plug printed board;
when the plug is plugged into the socket, the socket detection contact element is in contact conduction with the plug detection contact element, the first signal collection circuit and the second signal collection circuit can both detect a contact conduction signal and transmit the contact conduction signal to the corresponding MCU, and the first MCU and the second MCU respectively process the contact conduction signal so as to realize independent plugging counting of the plug and the socket.
2. A connector having a function of detecting a count of insertion according to claim 1, wherein: the socket detection contact element comprises a jack outer conductor and a socket detection contact pin coaxially sleeved in the jack outer conductor; the plug detection contact element comprises a contact pin outer conductor and a plug detection contact pin coaxially sleeved in the contact pin outer conductor; when the plug is inserted into the socket, the outer conductor of the contact pin is inserted into the outer conductor of the jack, and the socket detection contact pin is contacted with the plug detection contact pin.
3. A connector having a function of detecting a count of insertion according to claim 2, wherein: the front end of the socket detection contact pin is provided with a spring pin assembly, the spring pin assembly comprises a spring and a contact, the contact is assembled in an accommodating hole formed in the front end of the socket detection contact pin in a sliding mode along the plugging direction, and the spring is installed in the accommodating hole and connected with the rear end of the contact; when the plug is not inserted into the socket, under the action of the spring, the front end of the accommodating hole is in stop fit with the contact in the axial direction; when the plug is inserted into the socket, the contact is in elastic contact with the front end of the plug detection contact pin.
4. A connector having a function of detecting a count of insertion according to claim 1, wherein: the first MCU and the second MCU respectively comprise an AD conversion module, a threshold voltage comparison module and a plug counting module which are sequentially connected, the AD conversion module in the first MCU is connected with the first signal collecting circuit, and the AD conversion module in the second MCU is connected with the second signal collecting circuit.
5. A connector having a function of detecting a count of insertion according to claim 1, wherein: the socket also comprises a socket tail cable accessory, the socket tail cable accessory comprises a socket tail shell, a socket wire sealing body and a socket cable assembly, the socket cable assembly penetrates through the socket wire sealing body and is connected with the socket printed board component, the socket tail shell is connected to the rear end of the socket shell, the socket wire sealing body is fixed inside the rear end of the socket tail shell, and the socket printed board component is fixed in the socket tail shell through a first supporting shell;
the plug also comprises a plug tail cable accessory, the plug tail cable accessory comprises a plug tail shell, a plug wire sealing body and a plug cable assembly which is arranged in the plug wire sealing body in a penetrating mode and connected with a plug printed board component, the plug tail shell is connected to the rear end of the plug shell, the plug wire sealing body is fixed inside the rear end of the socket tail shell, and the plug printed board component is fixed in the plug tail shell through a second supporting shell.
6. A connector having a function of detecting a count of insertion according to claim 1, wherein: the socket detection contact is arranged on the central axis of the socket insulator; the plug detection contact is disposed on a central axis of the plug insulator.
7. A connector having a function of detecting a count of insertion according to claim 1, wherein: the socket printed board part is integrated with a first CAN bus communication unit connected with the first MCU, and the plug printed board part is integrated with a second CAN bus communication unit connected with the second MCU.
8. The connector with insertion count detection function according to claim 5, wherein: the socket printed board part comprises a first socket printed board and a second socket printed board which are arranged in parallel along the front-back direction, the first socket printed board and the second socket printed board are electrically connected through a flexible board or a hair button, the rear end of a first coaxial jack is connected to the first socket printed board, and the second socket printed board is connected with the socket cable assembly; the plug printed board part comprises a first plug printed board and a second plug printed board which are arranged in parallel along the front-back direction, the first plug printed board and the second plug printed board are electrically connected through a flexible board or a hair button, the rear end of a second coaxial jack is connected to a second socket printed board, and the second plug printed board is connected with the plug cable assembly.
9. The connector with insertion count detection function according to claim 5, wherein: the socket printed board part is fixed in the socket tail shell through the first support shell; the plug printed board part is fixed in the plug tail shell through the second support shell.
10. A connector having a function of detecting a count of insertion according to claim 2, wherein: the jack outer conductor and the socket detection contact pin are relatively fixed through the injection insulator, and the contact pin outer conductor and the plug detection contact pin are relatively fixed through the injection insulator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111249874.7A CN114122839B (en) | 2021-10-26 | 2021-10-26 | Connector with plug-in counting detection function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111249874.7A CN114122839B (en) | 2021-10-26 | 2021-10-26 | Connector with plug-in counting detection function |
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| CN114122839A true CN114122839A (en) | 2022-03-01 |
| CN114122839B CN114122839B (en) | 2024-05-14 |
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| Publication number | Publication date |
|---|---|
| CN114122839B (en) | 2024-05-14 |
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