CN114122839B - Connector with plug-in counting detection function - Google Patents
Connector with plug-in counting detection function Download PDFInfo
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- CN114122839B CN114122839B CN202111249874.7A CN202111249874A CN114122839B CN 114122839 B CN114122839 B CN 114122839B CN 202111249874 A CN202111249874 A CN 202111249874A CN 114122839 B CN114122839 B CN 114122839B
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- 238000001514 detection method Methods 0.000 title claims abstract description 98
- 239000004020 conductor Substances 0.000 claims description 29
- 239000012212 insulator Substances 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 22
- 238000004891 communication Methods 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000001746 injection moulding Methods 0.000 claims description 7
- 210000004209 hair Anatomy 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 description 7
- 230000032683 aging Effects 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Classifications
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention relates to a connector with a plugging counting detection function, which comprises a socket and a plug, wherein the socket comprises a socket shell, a socket detection contact piece and a socket printed board component, and a first coaxial jack which is plugged with the rear end of the socket detection contact piece is welded on the socket printed board component; the plug comprises a plug shell, a plug detection contact piece and a plug printed board component, wherein a second coaxial jack which is spliced with the rear end of the plug detection contact piece is welded on the plug printed board component; the socket printed board component is integrated with a first signal collecting circuit and a first MCU, and the plug printed board is integrated with a second signal collecting circuit and a second MCU; when the head seat is plugged, the socket detection contact piece is in contact conduction with the plug detection contact piece, the first signal collecting circuit and the second signal collecting circuit can both detect contact conduction signals and transmit the contact conduction signals to the corresponding MCU, and each MCU processes the contact conduction signals respectively, so that independent plug-in counting and plug-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 a plugging count detection function.
Background
The connector is mainly applied to electronic systems in the fields of automobiles, industry, medical treatment, aerospace, weaponry and the like at present, and mainly realizes electric connection and signal energy transmission. When the device is used as a main interface of an energy source, the device is not operated due to the fact that high power is transmitted for a long time and the contact part of the contact pin and the jack contact piece is easy to burn, and once the device is broken down slightly, the whole system is broken down seriously, so that serious safety accidents are caused. For example, the power connector is an energy inlet in the cabin of the spacecraft, and once the power connector fails (the contact is broken, aged and shorted), serious faults such as functional failure of the spacecraft can occur. Other measures are therefore required to improve the reliability of the connector.
The conventional connectors are passive devices, so that the internal state is unknown, and once the connector fails, the connector can only be passively maintained or replaced. In order to realize the visualization of the real-time state inside the connector and the detection and alarm of faults, the safety work of system equipment is ensured, a working state self-monitoring module capable of being embedded into the connector is urgently needed to be developed, and the real-time monitoring function of key characteristic quantity (such as plugging service life) directly related to the working state of the connector can be 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 maintenance economy of the weapon equipment are improved. Aiming at the health faults of the connector, namely structural faults or ageing of the connector, the most common ageing faults are ageing faults, namely ageing and performance degradation of a contact piece and the like caused by long-time operation or multiple plugging operation of the connector, the operation of the system is greatly hidden danger, and therefore the system is required to be reminded of timely maintenance and replacement. The connector aging fault detection method comprises the steps of detecting the number of plugging times aiming at the contact aging fault, and alarming when the connector reaches a set plugging service life threshold value, so as to prompt the connector to have a health state fault. Therefore, the number of plugging times can be used as the characteristic value for judging the health faults of the connector. In order to realize the functions of monitoring the plugging life and prompting the plugging in place, the invention provides a novel connector with the plugging frequency counting function.
At present, the number of plugging times of the connector is counted through external equipment such as a mechanical life tester, when the testing method is used, the connector is in a non-working state, and the connector can only be used for counting the mechanical life threshold of the connector, can not monitor the working state of the connector in real time and does not have a 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 plug-in count detection function, which can realize the functions of independently monitoring plug/socket plug-in times, prompting plug-in place and outputting plug-in times data, and further realize judgment and alarm on the current state of the connector.
The invention aims at solving the technical problems by adopting the following technical scheme. The connector with the plug-in counting detection function comprises a socket and a plug which are matched, wherein the socket comprises a socket shell, a socket detection contact piece and a socket printed board component, the socket detection contact piece is arranged in the socket shell through a socket insulator, and a first coaxial jack which is plugged with the rear end of the socket detection contact piece is welded on the socket printed board component; the plug comprises a plug shell, a plug detection contact piece and a plug printed board component, wherein the plug detection contact piece is arranged 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 piece is welded on the plug printed board component; the socket printed board component is integrated with a first signal collecting circuit and a first MCU which are connected, and the plug printed board is integrated with a second signal collecting circuit and a second MCU which are connected;
When the plug is plugged into the socket, the socket detection contact piece is in contact conduction with the plug detection contact piece, the first signal collecting circuit and the second signal collecting circuit can both detect contact conduction signals and transmit the contact conduction signals to the corresponding MCU, the first MCU and the second MCU process the contact conduction signals respectively, so that independent plug-in counting of the plug and the socket is realized, and meanwhile, the contact conduction signals (electric signals) have the function of in-place plug-in prompt.
Further, the socket detection contact piece comprises a socket outer conductor and a socket detection contact pin coaxially sleeved in the socket outer conductor; the plug detection contact piece comprises a pin outer conductor and a plug detection pin coaxially sleeved in the pin outer conductor; when the plug is inserted with the socket, the pin outer conductor is inserted into the jack outer conductor, and the socket detection pin is contacted with the plug detection pin.
Further, 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 slidingly assembled in a containing hole formed in the front end of the socket detection contact pin along the plugging direction, and the spring is installed in the containing hole and connected with the rear end of the contact; when the plug is not inserted into the socket, the front end of the accommodating hole is in stop fit with the contact in the axial direction under the action of the spring; when the plug is inserted into the socket, the contact is elastically contacted with the front end of the plug detection pin.
Further, the first MCU and the second MCU 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.
Further, the socket further 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 which is arranged in the socket wire sealing body in a penetrating manner and 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 in 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 manner 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 detecting contact is disposed on a central axis of the socket insulator; the plug detection contact is disposed on a central axis of the plug insulator.
Further, the socket printed board component is integrated with a first CAN bus communication unit connected with the first MCU, and the plug printed board component is integrated with a second CAN bus communication unit connected with the second MCU; the CAN bus communication unit CAN send plugging service life data to the upper computer through the socket/plug cable assembly.
Further, the socket printed board component 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 flexible boards or hair buttons, 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 component; the plug printed board component 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 soft boards or button hairs, the rear end of the second coaxial jack is connected to the second socket printed board, and the second plug printed board is connected with the plug cable component.
Further, the socket printed board component is fixed in the socket tail shell through the first supporting shell; the plug printed board component is fixed in the plug tail shell through the second supporting shell.
Further, the jack outer conductor and the socket detection pin are relatively fixed through injection molding of an insulator, the pin outer conductor and the plug detection pin are relatively fixed through injection molding of an insulator, and insulators in the socket/plug detection contact are 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, has the function of prompting the in-place detection of plugging and the function of outputting the data of the plugging times, and further realizes the judgment and the alarm of the current state of the connector. The plugging in-place detection function has extremely long mechanical life and extremely high response speed, and can realize the real-time monitoring of plugging characteristic detection in the work of the connector. The plug and socket end plug-in count data can be stored in a power-off mode, and continuous power supply is not needed.
2. In order to realize the functions of monitoring the plugging times of the connector and prompting the plugging in place, ensure the counting accuracy and simultaneously be embedded into the connector body, the socket/plug detection contact adopted by the invention adopts a coaxial contact, has the characteristics of high reliability and strong environmental resistance, and is very suitable for being used in the connector.
3. The invention does not change the original signal contact element of the connector in structure; the printed board component positioned in the double-end tail cable accessory can be well adapted to the structure of the connector, and has no influence on signal transmission of the connector; the power port and the communication interface introduced by the active end of the connector are low-frequency small signals, and the signal transmission of the original signal contact of the connector is not influenced, so that the electrical performance of the connector is not influenced. The size of the plugging surface of the connector and the size of the tail end of the plug and the socket are not changed at all.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention, as well as the preferred embodiments thereof, together with the following detailed description of the invention given in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a connector with plug-in count detecting function according to the present invention.
Fig. 2 is a schematic diagram of the sequential mating of a first coaxial jack, a socket sensing contact, a plug sensing contact, and a second coaxial jack in accordance with the present invention.
Fig. 3 is a schematic block diagram of a plug life self-detecting circuit of a socket terminal in the present invention.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the attached drawings and the preferred embodiments.
Referring to fig. 1 to 3, a connector with plug-in count detection function includes a plug and a socket which are adapted to each other, and one end of the plug and one end of the socket which are mutually plugged and matched are used as respective front ends; the socket comprises a socket shell 11, a socket insulator 12, a socket detection contact 13, a socket contact, a socket printed board component and a socket tail cable accessory; the plug includes a plug housing 21, a plug insulator 22, plug sense contacts 23, plug contacts, plug printed board components, and plug tail cable attachments.
At the socket end, the socket insulator 12 is fixedly mounted in the socket housing 11 in a manner of bonding, forced mounting or step limiting, etc., the socket insulator 12 is used for fixedly mounting the socket contact and the socket detection contact 13, the socket detection contact 13 is positioned on the central axis of the socket insulator 12, and the original node arrangement of the socket contact is not affected. The socket tail cable accessory comprises a socket tail shell 14, a socket wire sealing body 15 and a socket cable assembly penetrating through the socket wire sealing body 15 and connected with the socket printed board component, wherein 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 to play roles in shell sealing and cable sealing. The socket printed board component is fixed in the socket tail shell 14, in this embodiment, the socket printed board component includes a first socket printed board 16 and a second socket printed board 17 which are arranged in parallel and at intervals, the first socket printed board 16 and the second socket printed board 17 are electrically connected through soft boards or hair buttons, and the first socket printed board and the second socket printed board are fixed in the socket tail shell 14 through a first supporting shell, and the fixing mode is not limited to screw crimping. The socket printed boards are arranged in parallel along the axial direction, so that the sufficient circuit arrangement area can be ensured on the premise of unchanged connector volume, the compatibility with the existing connector is ensured, the overall dimension and the installation dimension of the connector are kept unchanged, and the prototype connector can be replaced conveniently and rapidly. The first socket printed board 16 is welded with a first coaxial jack 19, and the first coaxial jack 19 is used for being in plug-in fit with the rear end of the socket detection contact 13.
At the plug end, the plug insulator 22 is fixedly installed in the plug housing 21 by means of adhesion, forced loading and the like, the plug insulator 22 is used for installing plug contacts and plug detection contacts 23, the plug contacts are used for being correspondingly in plug-in fit with the socket contacts, and the plug detection contacts 23 are located on the central shaft 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 manner and is used for being connected with a plug printed board component; the plug tail housing 24 is mounted at the rear end of the plug housing 21, and the plug wire sealing body 25 is mounted in the plug tail housing 24 in an interference manner so as to play a sealing role. The plug printed board component is fixed in the plug tail shell, and is similar to the socket end, the plug printed board component comprises a first plug printed board 26 and a second plug printed board 27 which are arranged in parallel at intervals from front to back, the first plug printed board 26 and the second plug printed board 27 are electrically connected through a soft board or a hair button connector, and the first plug printed board and the second plug printed board are fixed in the plug tail shell 24 through a second supporting shell 28 and matched screws. The first plug printed board 26 is welded with a second coaxial jack 29, 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/plug printed board may be provided, or three or more may be provided at intervals in the front-rear direction, which is not limited by 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 quick connection with the socket housing by screw threads, so as to realize locking of the socket after plugging.
The receptacle detection contact 13 is a coaxial jack contact and the plug detection contact is a coaxial pin contact that mates with the coaxial jack contact. Specifically, the socket detection contact 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 injection molding an insulator, and the insulator is preferably a machined polyethylene insulator, namely, the jack outer conductor and the socket detection pin are relatively positioned in a manner of interference fit of the middle polyethylene insulator plus internal step structure; the inner jack and the outer jack of the first coaxial jack and the second coaxial jack are fixed in a relatively insulating way through injection molding of an insulator. The plug detecting contact 23 includes a pin outer conductor 231 and a plug detecting pin 232 coaxially sleeved in the pin outer conductor 231, and the pin outer conductor and the plug detecting pin are positioned relatively by injection molding a polyethylene insulator as well.
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 slidingly assembled in a containing hole 135 formed at 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 front end of the receiving hole 135 is in axial stop engagement with the contact 134 to prevent the contact from exiting the receiving hole when the header is not inserted. In the plug-and-socket plugging state, the pin outer conductor 231 is inserted into the jack outer conductor 131, and the front end of the socket detection pin 132 is elastically contacted with the spring pin assembly of the plug detection pin 232, so as to realize reliable electrical contact conduction. The first coaxial jack 19 is inserted into the jack outer conductor 131 and is inserted by the rear end of the socket detection pin 132, i.e. 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 is inserted by the rear end of the plug detection pin 232, i.e. 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 pieces of the double-end coaxial jack and the detection contact pin are in plug-in fit, so that coaxial signal transmission is realized. Compared with the common needle/hole contact, the coaxial contact can reduce the occupation of Kong Weishu, and the prior process of needing two paths of power supply can be realized by only one path of coaxial contact, so that the connector is convenient to integrate and miniaturize, the application range is expanded, and the coaxial contact is more stable in signal transmission.
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, the second signal collecting circuit, the second MCU and the second CAN bus communication unit which are sequentially connected are also integrally arranged on the plug printed board component, and the connection mode and the realized function are the same as those of the socket end, so that the description is omitted. The first coaxial jack is generally set to be low level, the coaxial contact of the plug end is high level, the potential of the plug end is changed, and the signal collecting circuit collects the potential signal change. The first MCU and the second MCU are internally provided with an AD conversion module, a threshold voltage comparison module and a plug counting module which are sequentially connected, wherein the AD conversion module is connected with the signal collecting circuit and is used for converting potential changes (analog quantity) acquired by the signal collecting circuit into digital quantity. In addition, each MCU is also provided with a fault judging unit, and when the socket is plugged, if the detection socket detection contact is not conducted with the plug detection contact, the fault can be output from the connector. In this embodiment, two counting function printed boards are disposed at the socket end, and 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, which is merely illustrative, and the present invention is not limited thereto.
When the plug and the socket are in an uninstalled state, the plug detection contact piece is separated from the socket detection contact piece, and the ports of the printed boards at the two ends of the header are not provided with signal input, so that the uninstalled state is indicated. When the plug and the socket are plugged, the socket detection pin is contacted with the plug detection pin, the contact is stressed to deform the spring, the coaxial contact pieces at the two ends of the head seat are conducted, the electric potentials at the two ends of the coaxial jack contact piece at the seat end and the coaxial contact pin contact piece at the head end are jumped after being plugged, the electric potential change is continuous in a plugging in-place state, and the electric potential change signal has the function of plugging in-place prompt; for example, the detection range of the insertion in-place detection function of the invention is 0-1 mm, and the detection precision is 0.5+/-0.2 mm. After the signal collecting circuits at the plug end and the socket end collect potential change signals, the signals are amplified firstly 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 is plugged in place, so that whether the plug operation is performed is judged. When the connector plug and the socket are plugged in place, the plug detection contact and the socket detection contact are also plugged in place, the signal input potential of the ports of the printed boards at the two ends of the header changes, and the period of time is continued, so that the connector is judged to be plugged in once, and the MCU at the two ends of the header records once 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 MCU, the signal acquisition circuit and the CAN bus communication unit are integrated on the socket printed board component and the plug printed board component, the invention CAN realize independent counting of the plug end and the socket end; and the plug/socket end plug-in count data can be stored in a power-down mode without continuous power supply.
In this embodiment, electronic components such as a power chip and a power bus chip are further welded on 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 chip and the power bus chip are preferably integrated on the second socket printed board. Therefore, the plug and the socket are both passive connectors and are powered by the outside, when the plug cable assembly is installed at the plug end, the plug and the socket are plugged with the contact pins 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 service life data of the socket plugged with the plug and the socket. The detection function of the invention realizes single-ended power supply of the plug, and the plug seat can be supplied with power by the coaxial contact piece transmission after the plug seat is plugged.
The dimensions, material types, numbers, and mounting positions of the respective parts described in the present embodiment are merely illustrative, and for example, the wire sealing body inside the plug/socket housing, the style and materials of the insulator, the number of plug/socket contacts, etc. are specific requirements; various other embodiments and modifications within the scope of the claimed invention will be apparent to those skilled in the art, and any simple modification, equivalent changes and modifications to the above embodiments according to the technical principles of the present invention will still fall within the scope of the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention.
Claims (8)
1. The utility model provides a connector with plug count detects function, includes socket and plug of looks adaptation, its characterized in that: the socket comprises a socket shell, a socket detection contact and a socket printed board component, wherein the socket detection contact is arranged in the socket shell through a socket insulator, and a first coaxial jack which is spliced with the rear end of the socket detection contact is welded on the socket printed board component; the plug comprises a plug shell, a plug detection contact piece and a plug printed board component, wherein the plug detection contact piece is arranged in the plug shell through a plug insulator, a second coaxial jack which is spliced with the rear end of the plug detection contact piece is welded on the plug printed board component, and the first coaxial jack and the second coaxial jack both comprise inner holes and outer holes which are coaxially arranged; the socket printed board component is integrated with a first signal collecting circuit and a first MCU which are connected, the plug printed board is integrated with a second signal collecting circuit and a second MCU which are connected, 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 connected in sequence, 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;
When the plug is plugged into the socket, the socket detection contact is in contact conduction with the plug detection contact, the first signal collecting circuit and the second signal collecting circuit can detect potential change signals and transmit the potential change signals to the corresponding MCU, the first MCU and the second MCU respectively convert the potential change signals into digital values through the AD conversion module and compare the digital values with a preset threshold voltage when the plug is plugged into place so as to realize the judgment of plugging into place, and the first MCU and the second MCU can continuously realize independent plugging counting of the plug and the socket by detecting whether the potential change signals are continuous or not.
2. The connector with plug-in count detecting function according to claim 1, wherein: the socket detection contact piece comprises a socket outer conductor and a socket detection contact pin coaxially sleeved in the socket outer conductor; the plug detection contact piece comprises a pin outer conductor and a plug detection pin coaxially sleeved in the pin outer conductor; when the plug is inserted with the socket, the pin outer conductor is inserted into the jack outer conductor, and the socket detection pin is contacted with the plug detection pin.
3. A connector with plug-in count detecting function 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 slidingly assembled in a containing hole formed in the front end of the socket detection contact pin along the plugging direction, and the spring is installed in the containing hole and connected with the rear end of the contact; when the plug is not inserted into the socket, the front end of the accommodating hole is in stop fit with the contact in the axial direction under the action of the spring; when the plug is inserted into the socket, the contact is elastically contacted with the front end of the plug detection pin.
4. The connector with plug-in count detecting function according to claim 1, wherein: the socket also comprises a socket tail cable accessory, wherein the socket tail cable accessory comprises a socket tail shell, a socket wire sealing body and a socket cable assembly which is arranged in the socket wire sealing body in a penetrating manner and is connected with a 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 in 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 manner 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 plug tail shell, and the plug printed board component is fixed in the plug tail shell through a second supporting shell.
5. The connector with plug-in count detecting function 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.
6. The connector with plug-in count detecting function according to claim 1, wherein: the socket printed board component is integrated with a first CAN bus communication unit connected with the first MCU, and the plug printed board component is integrated with a second CAN bus communication unit connected with the second MCU.
7. The connector with plug-in count detecting function according to claim 4, wherein: the socket printed board component comprises a first socket printed board and a second socket printed board which are arranged in parallel along the front-back direction, wherein the first socket printed board and the second socket printed board are electrically connected through flexible boards or button hairs, 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 a socket cable assembly; the plug printed board component 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 soft boards or button hairs, the rear end of the second coaxial jack is connected to the first plug printed board, and the second plug printed board is connected with the plug cable component.
8. A connector with plug-in count detecting function according to claim 2, wherein: the jack outer conductor and the socket detection pin are relatively fixed through an injection molding insulator, and the pin outer conductor and the plug detection pin are relatively fixed through an injection molding insulator.
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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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| CN202111249874.7A CN114122839B (en) | 2021-10-26 | 2021-10-26 | Connector with plug-in counting detection function |
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| CN114122839A CN114122839A (en) | 2022-03-01 |
| CN114122839B true CN114122839B (en) | 2024-05-14 |
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| Publication number | Publication date |
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| CN114122839A (en) | 2022-03-01 |
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