CN115498448B - An integrated gas-electric connector for torches - Google Patents

An integrated gas-electric connector for torches

Info

Publication number
CN115498448B
CN115498448B CN202211043465.6A CN202211043465A CN115498448B CN 115498448 B CN115498448 B CN 115498448B CN 202211043465 A CN202211043465 A CN 202211043465A CN 115498448 B CN115498448 B CN 115498448B
Authority
CN
China
Prior art keywords
insulator
plug
gas
wall
torch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202211043465.6A
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Chinese (zh)
Other versions
CN115498448A (en
Inventor
吕正林
韩宗捷
霍正卿
池光辉
汪瑞方
石茜文
郑岩
庞宗占
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Hanghua Energy Saving And Environmental Protection Technology Co ltd
Original Assignee
Beijing Hanghua Energy Saving And Environmental Protection Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Beijing Hanghua Energy Saving And Environmental Protection Technology Co ltd filed Critical Beijing Hanghua Energy Saving And Environmental Protection Technology Co ltd
Priority to CN202211043465.6A priority Critical patent/CN115498448B/en
Publication of CN115498448A publication Critical patent/CN115498448A/en
Application granted granted Critical
Publication of CN115498448B publication Critical patent/CN115498448B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00
    • 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
    • H01R13/44—Means for preventing access to live contacts
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

本发明公开了一种用于火炬的气电一体集成插接装置，第一插接部中，下燃气管道设于底座芯中心，下绝缘体中的母电触头位于下燃气管道外侧，第二插接部中，上燃气管道固定于火炬壳体中心，公电触头装配于中位于上燃气管道外侧的上绝缘体中。第一插接部和第二插接部插接时，底座锁紧火炬外壳，上燃气管道和下燃气管道连通，公电触头和母电触头连接。本发明形成了位于装置中心的燃气路和位于燃气路周边的电路，具有高集成度、小型化、插接快速、安全性高等优势，在插接装置领域中具有广泛的应用前景。

This invention discloses an integrated gas-electric connector for a flare. In the first connector, a lower gas pipe is located at the center of the base core, and a female electrical contact in the lower insulator is located outside the lower gas pipe. In the second connector, an upper gas pipe is fixed to the center of the flare housing, and a male electrical contact is assembled in the upper insulator located outside the upper gas pipe. When the first and second connectors are connected, the base locks the flare housing, the upper and lower gas pipes are connected, and the male and female electrical contacts are connected. This invention forms a gas path at the center of the device and a circuit around the gas path, offering advantages such as high integration, miniaturization, rapid connection, and high safety, and has broad application prospects in the field of connector devices.

Description

Gas-electricity integrated plugging device for torch
Technical Field
The invention relates to a gas-electricity integrated quick-plugging device for a torch, belonging to the technical field of plugging devices, butt connectors and sealing joints.
Background
The plug or the connector is widely applied in a plurality of fields, the existing plug device can be roughly divided into three types, namely a non-integral plug device only comprising a fluid plug or a single electric plug, wherein the plug is a plug with a traditional function and can only be used for electrifying or only passing fluid, and cannot meet the requirements of working scenes of electrifying or passing fluid at the same time, the plug device of the fluid and the circuit is simple and integrated, the fluid side is mainly provided with a water connector, a gas connector is not seen, the connector of the circuit is not seen by a high-voltage electric connector and a signal connector, no independent plug feedback is arranged, and only whether the plug is electrified or not is judged to be plugged in place is adopted, so that the device is only used by simply superposing two plugs which are not subjected to any technical transformation, has a simple structure and a large volume, does not see any technical integration or innovation, does not support simultaneous passing of various complex media such as high-voltage electricity, signals, combustible gas and the like, and cannot meet the requirements of a miniaturized plug structure under the 'hand-held' size. The third category of devices containing gas and electric circuits, however, are complex to assemble, such as CN2213604Y, and cannot be plugged quickly, such devices are not in the category of plugging devices at all, cannot be used to achieve plugging functions, and do not provide technical content about any key technology related to plugging devices.
In summary, there is no miniaturized, fast and reliable plug-in device with high integration of gas and high voltage power, independent feedback signal, and smaller size than the hand position of the hand torch. At the same time, there is no mention about the application environment of the plug-in device for plug-in device applications in low-temperature, humid environments. The current plugging device is applied to hand-held torch relay display and fixed position display, and a set of plugging device which can be plugged at the lower end of the hand-held torch to enable the torch to be communicated with an external system and conduct fuel supply, high-voltage electricity and signal transmission is required, so that the preparation of a high-integration rapid plugging device is urgently needed.
Disclosure of Invention
The invention aims to overcome the defects, and provides a gas-electricity integrated plugging device for a torch, which solves the problems of low integration level, large size, inconvenient plugging, poor safety and the like of the plugging device in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A gas-electricity integrated plug-in device for a torch comprises a first plug-in part and a second plug-in part;
the first plug-in part comprises a base, a base core, a lower insulator, a lower gas pipeline, a first cable and a female electric contact for ignition;
The base core is fixedly arranged on the base, a lower gas cavity and a lower circuit cavity are arranged in the base core, the lower gas cavity is positioned at the center of the base core, and the lower circuit cavity is positioned at the outer side of the lower gas cavity;
The lower insulator is arranged at the outer side of the lower gas cavity, the ignition female electrical contact is assembled in the lower insulator, and a first cable connected with the tail part of the ignition female electrical contact passes through the lower circuit cavity and then is connected with an external ignition control system;
The lower gas pipeline is arranged in the lower gas cavity and is connected with an external gas source;
The second plug-in part comprises an upper gas pipeline, a male electric contact for ignition, a second cable and an upper insulator;
the upper gas pipeline is fixed at the center of the torch shell and is connected with the torch ignition mechanism;
The upper insulator is arranged on the outer side of the upper gas pipeline, the ignition male electrical contact is assembled in the upper insulator, and a second cable connected with the tail part of the ignition male electrical contact is connected with the torch ignition mechanism;
when the first plug-in connection part and the second plug-in connection part are plugged in, the base locks the torch shell, the upper gas pipeline is communicated with the lower gas pipeline, and the male electrical contact for ignition is connected with the female electrical contact for ignition.
Furthermore, the gas-electricity integrated plugging device for the torch further comprises a plugging position feedback mechanism;
The plug-in position feedback mechanism comprises 2 female electric contacts for feedback, 2 male electric contacts for feedback and an electrified induction circuit;
The feedback female electrical contact is assembled in the lower insulator, and a first cable connected with the tail of the feedback female electrical contact passes through the lower circuit cavity and then is connected with the electrified induction circuit;
the feedback male electrical contacts are assembled in the upper insulator, and 2 second cables connected with the tail parts of the 2 feedback male electrical contacts are in short circuit;
When the first plug-in part and the second plug-in part are plugged, the feedback female electrical contact is connected with the feedback male electrical contact, the power-on induction circuit judges whether the first plug-in part and the second plug-in part are plugged in place or not, and when the first plug-in part and the second plug-in part are plugged in place, a plug-in signal is sent to an external ignition control system, and the external ignition control system outputs an ignition signal to the ignition female electrical contact according to the plug-in signal;
the number of the lower circuit cavities is equal to the total number of the feedback female electric contacts and the ignition female electric contacts, and the lower circuit cavities are mutually independent.
Further, in the gas-electricity integrated plugging device for the torch, the base comprises a first base body, a second base body and a locking device, wherein the second base body is arranged on the first base body;
the torch shell is provided with a locking hole;
The second seat body is of a cylindrical structure, and the base core is positioned in the second seat body and fixedly connected with the first seat body;
The second seat body is provided with an outward bulge, and a pin hole penetrating through the side wall is arranged in the bulge, wherein the direction of the pin hole is perpendicular to the axis of the second seat body;
The locking device comprises an outer nut, a spring and a pin shaft, wherein the spring is sleeved outside the pin shaft, the first end of the pin shaft is inserted into the pin hole, the second end of the pin shaft is fixedly connected with the outer nut, and the outer nut is in threaded connection with the outer surface of the protrusion;
The first end face of the pin shaft is an inclined plane, when the first plug-in connection part and the second plug-in connection part are plugged, the torch shell downwards enters a gap between the inner wall of the second base body and the outer wall of the base core to be in contact with the inclined plane, the pin shaft is pushed outwards to compress the spring until a locking hole formed in the torch shell is aligned with the pin shaft, and the pin shaft enters the positioning hole under the action of the spring to lock the base to the torch shell.
Furthermore, in the gas-electricity integrated plugging device for the torch, the lower end of the lower gas pipeline is in threaded connection with the inner wall of the lower gas cavity, the upper end of the upper gas pipeline is in threaded connection with the torch shell, when the first plugging part and the second plugging part are plugged, the upper end of the lower gas pipeline is plugged with the lower end of the upper gas pipeline, the outer wall of the upper end of the lower gas pipeline is matched with the inner wall of the lower end of the upper gas pipeline, and the matched position is sealed by using O-shaped rings which are more than or equal to 3 channels;
The surface of the O-shaped ring and the inner wall of the upper gas pipeline are coated with lubricating grease, and the similar viscosity of the lubricating grease at the use temperature is less than or equal to 700Pa.s;
the upper end of the lower gas cavity is a horn mouth with a big upper part and a small lower part.
In the gas-electricity integrated plug-in device for the torch, the lower insulator is of a cylindrical structure arranged on the outer side of the lower gas cavity, and the inner wall of the lower insulator is in contact with the outer wall of the lower gas cavity;
The female electrical contact is assembled between the inner wall and the outer wall of the lower insulator;
The upper insulator is of a cylindrical structure arranged on the outer side of the upper gas pipeline, and the male electrical contact is assembled between the inner wall and the outer wall of the upper insulator;
Each lower circuit cavity is uniformly distributed on the outer side of the lower gas cavity along the circumferential direction, and the female electrical contacts are uniformly distributed on the outer side of the lower gas cavity.
Furthermore, in the gas-electricity integrated plug-in device for the torch, the female electrical contact and the male electrical contact are respectively fixed in the lower insulator and the upper insulator by using a pressure assembly method;
the head of the female electrical contact is lower than the upper end of the lower insulator, a shrinkage groove extending to the upper end of the lower insulator is arranged in the lower insulator, and the female electrical contact is mounted in a limiting way by using the shrinkage groove; the head of the male electrical contact extends out of the upper insulator;
When the first plug-in part and the second plug-in part are plugged in, the upper end of the lower insulator is matched with the lower end of the upper insulator, the head of the female electrical contact is connected with the head of the male electrical contact, the upper end of the outer wall of the lower insulator is provided with a chamfer, and the lower end of the outer wall of the upper insulator is provided with a boss matched with the chamfer.
Furthermore, in the gas-electricity integrated plug-in device for the torch, the upper end of the inner wall of the lower insulator is higher than the upper end of the lower gas cavity, and the upper end of the lower gas pipeline is lower than the upper end of the lower gas cavity;
the upper end of the inner wall of the lower insulator is provided with a circumferential boss, and the lower end of the inner wall of the upper insulator is provided with a circumferential groove matched with the circumferential boss.
In the gas-electricity integrated plug-in device for the torch, the outer diameter of the lower insulator is equal to the maximum outer diameter of the base core, and the outer wall surface of the lower insulator and the outer wall surface of the base core form a continuous cylindrical wall surface;
the cylindrical wall surface is provided with an axial limiting groove, the inner wall of the torch shell is provided with an axial limiting protrusion, and when the first plug-in part and the second plug-in part are plugged, the limiting groove and the limiting protrusion are matched for circumferential limiting.
Furthermore, in the gas-electricity integrated plug-in device for the torch, a cable through hole is formed in the torch shell, one end of the second cable is connected with the tail part of the male electrical contact, and the other end of the second cable penetrates through the cable through hole and is connected with the torch ignition mechanism;
and insulating glue is filled between the second cable and the cable through hole for sealing.
Furthermore, in the gas-electricity integrated plug-in device for the torch, a lower insulator groove and an upper insulator groove are respectively arranged in the lower insulator and the upper insulator;
the junction of the female electrical contact and the first cable is located in the lower insulator groove, the junction of the male electrical contact and the second cable is located in the upper insulator groove, and insulating glue is filled in the lower insulator groove and the upper insulator groove.
Compared with the prior art, the invention has at least one of the following beneficial effects:
(1) The gas-electricity integrated plugging device for the torch can meet the requirements of high integration, miniaturization and gas-electricity integrated quick plugging when the plugging device is placed at the bottom of the torch;
(2) The plugging device is provided with the locking device, so that quick plugging and reliable locking are ensured;
(3) The invention designs the plug feedback mechanism, realizes direct feedback of plug in place in a simple way, reduces judging links, reduces the probability of faults in the implementation process, and has the characteristics of simplicity, high efficiency and high reliability;
(4) The invention has good guiding function, and the formed splicing device can ensure that a player can finish smooth splicing through simple steps on the premise of not utilizing vision;
(5) The invention has good sealing performance and smooth plugging performance, and can safely and reliably seal fuel gas and smoothly complete plugging through the integral structural design and the use of insulating glue.
(6) The invention has reliable dielectric effect, no creepage phenomenon occurs between circuits and metals in the plugging device, and has better safety.
Drawings
FIG. 1 is a cross-sectional view of an entire plug assembly according to a preferred embodiment of the present invention;
FIG. 2 is a lower profile view of a plug device according to a preferred embodiment of the present invention;
FIG. 3 is a cross-sectional view of the lower portion of the plug assembly in a preferred embodiment of the present invention;
FIG. 4 is a cross-sectional view of the fuel gas circuit of the plug assembly in a preferred embodiment of the present invention;
FIG. 5 is a circuit cross-sectional view of a plug device in accordance with a preferred embodiment of the present invention;
FIG. 6 is a cross-sectional view of the upper portion of the plug assembly in a preferred embodiment of the present invention;
FIG. 7 is an upper perspective view of a preferred embodiment of the plug assembly of the present invention;
FIG. 8 is a schematic view of a locking device according to a preferred embodiment of the present invention;
FIG. 9 is a schematic diagram of a plug-in-place feedback mechanism in accordance with a preferred embodiment of the present invention;
In the figure, a 101-torch shell, a 102-cable groove, a 103-limit protrusion, a 104-locking hole, a 111-upper insulator, a 112-male electrical contact, a 113-second cable, a 114-upper insulator groove, a 121-upper gas pipeline, a 1111-boss, a 1112-annular groove and a 1211-upper gas pipeline lower part;
201-base, 202-base core, 203-screw, 211-lower insulator, 212-female electrical contact, 213-first cable, 214-lower insulator groove, 221-lower gas pipe, 122, 222-O-ring, 230-locking device, 231-outer nut, 232-spring, 233-pin, 240-limit groove, 2021-base core upper opening, 2111-shrink groove, 2112-circumferential boss, 2211-lower gas pipe upper portion, 2331-inclined plane.
Detailed Description
The features and advantages of the present invention will become more apparent and clear from the following detailed description of the invention.
The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The invention provides a highly integrated gas and high-voltage integrated quick plug device with independent feedback for a torch, which comprises a first plug part and a second plug part, wherein the first plug part is the lower part of the plug device, and the second plug part is the upper part of the plug device, wherein the upper part of the plug device is used as a part of the torch and is combined with a torch shell 101, and the torch is ignited after the upper part of the plug device and the lower part of the plug device are plugged.
The technical scheme of the invention will be described in detail with reference to fig. 1 to 9.
In a preferred embodiment, as shown in fig. 1, the upper part of the plugging device and the lower part of the plugging device respectively comprise two parts of an integrated gas circuit as shown in fig. 4 and an integrated circuit as shown in fig. 5, wherein gas is in a single channel and is positioned at the center of the device and used for circulating the gas, external gas is sequentially input into a torch ignition mechanism through a base core 202, a lower gas pipeline 221 and an upper gas pipeline 121, the plugging position of the lower gas pipeline 221 and the upper gas pipeline 121 is sealed by adopting a 3-channel O-shaped ring 222, the circuit is in a multi-channel and is positioned at the periphery of the gas channel and used for transmitting electric signals of an external ignition control system such as a high-voltage circuit or a plugging in-place feedback signal, and the like, and mainly comprises the base core 202, a lower insulator 211, a female electric contact 212, a first cable 213, a second cable 113, an upper insulator 111 and a male electric contact 112, wherein the female electric contact 212 comprises two types of female electric contacts for ignition and a male electric contact for feedback, the male electric contact 112 comprises the male electric contact for ignition and the male electric contact for feedback, and the male electric contact for ignition is only, and the male electric contact for the ignition is connected with the male electric contact for the ignition control system, and the female electric contact for the ignition control system to be connected by the cable, and the male electric contact for the ignition control.
The male electrical contact 112 and the female electrical contact 212 are assembled into holes of the upper insulator 111 and the lower insulator 211 respectively by a pressure assembly method, the tail parts of the electrical contacts are connected with the cables, the connection ports of the tail parts of the contacts and the cables are positioned in the upper insulator groove 114 and the lower insulator groove 214 respectively, and insulating glue is filled in the grooves.
In order to prevent the high-voltage electric creepage phenomenon between the electric contacts, the end part of the female electric contact 212 is retracted into the lower insulator 211 to form a contraction groove 2111, the contraction groove 2111 takes the end part of the female electric contact as a starting point and extends to the upper end of the lower insulator 211, a chamfer is reserved on the outer wall of a notch of the contraction groove 2111, a boss 1111 is reserved at the connecting part of the upper insulator 111 corresponding to the contraction groove and the male electric contact 112, and the lower end of the boss 1111 is in a shape complementary with the chamfer of the outer wall of the contraction groove 2111. When not plugged, the shrinkage groove 2111 can effectively prolong the creepage distance between the female electrical contacts 212 and prevent the creepage phenomenon. After the plugging is completed, the boss 1111 is matched with the chamfer of the outer wall of the lower insulator shrinkage groove 2111, and the matching surface is an inclined surface, so that the creepage line between the male electrical contacts 112 can be cut off.
In order to prevent the creepage phenomenon between the electric contact plug-in position and the gas pipeline, the lower insulator 211 is provided with a circular boss 2112, the upper insulator is provided with a circular groove 1112, and the base core 202 and the lower gas pipe 221 are both contracted inside the lower insulator 211. When not inserted, the annular boss 2112, the base core 202 and the lower gas pipe 221 are contracted in the insulator, so that the creepage distance is effectively prolonged, and the creepage phenomenon is avoided. The mating surfaces of the circumferential boss 2112 and the circumferential groove 1112 after plugging can effectively cut off the creepage path.
To ensure accuracy of the plugging orientation, the three structures of the upper gas pipe lower portion 1211, the lower gas pipe upper portion 2211, and the trumpet-shaped upper outlet of the base core 202 together form an axial guide groove, forming axial guide. The inner wall surface of the torch shell 101 is provided with a limiting protrusion 103 along the axial direction, and the limiting protrusion 103 and a limiting groove 240 on the lower part of the plug-in device jointly form circumferential positioning. The axial positioning and the circumferential positioning support the accuracy of the direction of the plugging device.
To ensure smooth insertion, the surface of the O-ring 222 and the inner surface of the upper gas pipe 121 are both coated with grease. If the plug-in device is used at low temperature, low-temperature lubricating grease at corresponding temperature should be coated, and the similar viscosity of the lubricating grease at the use temperature should be less than or equal to 700Pa.s.
As shown in fig. 2 and 3, the plug device lower part comprises a base 201, a base core 202, a lower gas duct 221, a lower insulator 211, a female electrical contact 212, a first cable 213. The base core 202 is installed in the center of the base 201, is limited by adopting a boss, and is locked by using a screw 203. The lower gas pipe 221 is screwed with the base core 202. The base 201 includes a locking device 230, as shown in fig. 8, the locking device 230 includes an external nut 231, a spring 232, and a pin 233, and when the torch housing 101 is inserted, it moves downward, and after contacting with a bevel 2331 at one end of the pin 233, the pin 233 moves outward, and at the same time compresses the spring 232. After being inserted into place, the pin 233 is inserted into the locking hole 104 in the torch housing 101 under the urging of the spring 232, thereby forming a one-way locking of the torch. The included angle theta between the inclined plane 2331 of the pin shaft and the vertical direction is reasonably set, so that the weight of the torch acting on the inclined plane 2331 is more than or equal to the thrust of the spring 232, the weight of the torch can be used for completing the insertion, and the design is changed to reduce the resistance of the insertion action of the torch hand, so that the insertion action can be easily completed.
In the upper part of the plug-in connection, as shown in fig. 6 and 7, the upper gas line 121 is screwed to the torch housing 101, while the upper insulator 111 is pressed against the torch housing 101 by means of the upper gas line 121.
In the invention, a plug-in position feedback mechanism is formed by using 2 female electric contacts 212, 2 male electric contacts 112 and an electrified induction circuit, and as shown in fig. 9, the 2 female electric contacts 212 and the 2 male electric contacts 112 are respectively named as a female electric contact for feedback and a male electric contact for feedback, and are connected in series by using a cable in a short circuit manner in the plug-in position feedback mechanism. The working method of the plug-in position feedback mechanism is that an electrified induction circuit is respectively connected with two feedback female electric contacts, when the upper part of the plug-in device and the lower part of the plug-in device complete plug-in actions, the series connected feedback male electric contacts can form a closed circuit, the electrified induction circuit judges the completion of plug-in actions, a plug-in position signal is sent to an external ignition control system, plug-in position feedback is completed, and the external ignition control system sends a high-voltage electric signal to the electric contacts after the plug-in is completed. The plug-in position feedback mechanism does not use a sensor, does not use various components, realizes direct feedback of plug-in position in the simplest and ingenious mode, reduces judgment links, reduces the probability of faults in the implementation process, and has the characteristics of simplicity, high efficiency and high reliability.
Be equipped with the cable through hole on the torch shell 101, second cable 113 one end and public electrical contact 112 afterbody connection, the other end passes cable through hole and torch ignition mechanism and is connected or short circuit, and the cable through hole top is equipped with cable groove 102, fills insulating glue with the cable through hole and the cable groove 102 of torch casing 101 in, can prevent that the rainwater from getting into grafting device through the torch, also can prevent simultaneously that grafting device seal failure's gas from getting into the torch inner chamber through cable groove 102. The insulator is made of a fine-machinable high-strength light insulating plastic material.
The present invention uses metal materials for the remaining components except for the lower insulator 211 and the upper insulator 111.
The plug-in device has high integration level, and solves the contradiction between the complex gas and electric plug-in functional structure and the limited space (the appearance is smaller than the hand holding size). The plug-in device is arranged at the bottom of the torch, the internal space is narrow, and meanwhile, the gas-electricity plug-in integrated device bears multiple functions and can only solve the contradiction through high integration. The invention combines the gas circuit, the circuit and the shape of the torch, integrates the structures into a whole by utilizing the way that the gas circuit is uniformly distributed in the circumferential direction of the center and the multipath circuits, and simultaneously fuses the structures of the circuit and the gas circuit to form a highly integrated, miniaturized and multifunctional plugging device.
The invention solves the contradiction between invisible splicing and reliable butting. According to the functional requirement of the device, the plugging device needs to meet the blind plugging requirement of the torch hand, namely, the plugging is completed under the condition that the torch hand does not use vision at all. The invention provides a perfect blind insertion solution by adopting a circumferential positioning and axial guiding structure, namely, after a torch hand completes insertion through an insertion device, a circumferential positioning groove (a limiting groove 240) can be found only by simple rotation, and then reliable butt joint can be completed under the guidance of the axial guiding device (namely, an upper gas pipeline lower part 1211, a lower gas pipeline upper part 2211 and a horn-shaped base core upper outlet 2021) by pressing down.
The invention solves the contradiction between smooth plugging and reliable sealing. The gas seal is different from the liquid medium seal, the gas medium may have slight leakage in the sealing process, in the semi-closed space of the plug device, the accumulation of the slight leakage may enable the gas concentration in the plug device to reach the explosion lower limit, and any slight discharge of the circuit may cause deflagration in the plug device. In particular, when the sealed medium is hydrogen gas which is easy to leak, the requirement for sealing reliability is raised to the highest degree. The invention adopts the method of three O-shaped rings for axial sealing, and can reduce the hydrogen leakage to below 1 ppm. The axial guiding method is adopted to uniformly compress the annular O-shaped ring during the plugging, and the lubricating grease is utilized to effectively reduce the friction force between the compression surface of the O-shaped ring and the metal surface, so that the plugging smoothness is greatly improved. If the plug-in device is used in a low-temperature state, the O-shaped ring which is stiff due to low temperature can greatly prevent the smooth plug-in, so that the O-shaped ring material with better elastic deformation in the low-temperature state is adopted. At the same time, the viscosity of the grease at low temperature increases, which also results in difficult connection, and grease having a lower similar viscosity at low temperature should be used.
The invention solves the contradiction between miniaturization and high-voltage creepage distance. The circuit of the plug-in device is mainly high-voltage power above 5000kV, the phenomenon that the high-voltage circuit climbs to the ground is extremely serious, and particularly when the plug-in device is used in a humid environment, the air dielectric capacity is reduced, and the dielectric interval is further prolonged. The creepage phenomenon mainly concentrates the positions of the end parts of the male and female electrical contacts, the cable connection parts and the like. The cable connection part is of a static structure, the connection point is retracted into the insulation by adopting the hole groove, and the hole groove is filled with insulation glue for encapsulation. The creepage phenomenon of the end parts of the male and female electrical contacts cannot be packaged by adopting insulating glue, and only the dielectric spacing can be prolonged through the structure, or the creepage line can be cut off. The creepage of the male and female electrical contact end is divided into three creepage modes of creepage between the electrical contacts, creepage of the electrical contacts to gas circuit metal and creepage of the electrical contacts to a torch shell. The convex surface and the concave surface are matched with each other in the inner ring and the outer ring of the insulator, so that the dielectric spacing is effectively prolonged. The contradiction between miniaturization and high-voltage creepage distance is effectively solved through a structural method and a packaging method.
The invention has been described in detail in connection with the specific embodiments and exemplary examples thereof, but such description is not to be construed as limiting the invention. It will be understood by those skilled in the art that various equivalent substitutions, modifications or improvements may be made to the technical solution of the present invention and its embodiments without departing from the spirit and scope of the present invention, and these fall within the scope of the present invention. The scope of the invention is defined by the appended claims.
What is not described in detail in the present specification is a well known technology to those skilled in the art.

Claims (9)

1.一种用于火炬的气电一体集成插接装置，其特征在于，包括第一插接部和第二插接部；1. A gas-electric integrated plug-in device for a torch, characterized in that it includes a first plug-in portion and a second plug-in portion; 第一插接部中包括底座(201)、底座芯(202)、下绝缘体(211)、下燃气管道(221)、第一电缆(213)和点火用母电触头；The first plug-in part includes a base (201), a base core (202), a lower insulator (211), a lower gas pipe (221), a first cable (213), and an ignition female electrical contact; 底座芯(202)固定安装于底座(201)上，底座芯(202)中设有下燃气腔和下电路腔，下燃气腔位于底座芯(202)中心，下电路腔位于下燃气腔外侧；The base core (202) is fixedly installed on the base (201). The base core (202) is provided with a lower gas chamber and a lower circuit chamber. The lower gas chamber is located in the center of the base core (202), and the lower circuit chamber is located outside the lower gas chamber. 下绝缘体(211)设于下燃气腔外侧，点火用母电触头装配于下绝缘体(211)中，与点火用母电触头尾部连接的第一电缆(213)穿过下电路腔后与外部点火控制系统连接；The lower insulator (211) is located outside the lower gas chamber. The ignition female electrical contact is assembled in the lower insulator (211). The first cable (213) connected to the tail of the ignition female electrical contact passes through the lower circuit chamber and is connected to the external ignition control system. 下燃气管道(221)设于下燃气腔中，下燃气管道(221)与外部气源连接；The lower gas pipeline (221) is located in the lower gas chamber and is connected to an external gas source; 第二插接部包括上燃气管道(121)、点火用公电触头、第二电缆(113)和上绝缘体(111)；The second connector includes an upper gas pipe (121), an ignition power contact, a second cable (113), and an upper insulator (111); 上燃气管道(121)固定于火炬壳体(101)中心，上燃气管道(121)与火炬点火机构连接；The upper gas pipeline (121) is fixed to the center of the flare housing (101), and the upper gas pipeline (121) is connected to the flare ignition mechanism; 上绝缘体(111)设于上燃气管道(121)外侧，点火用公电触头装配于上绝缘体(111)中，与点火用公电触头尾部连接的第二电缆(113)与火炬点火机构连接；The upper insulator (111) is located outside the upper gas pipeline (121), the ignition power contact is assembled in the upper insulator (111), and the second cable (113) connected to the tail of the ignition power contact is connected to the torch ignition mechanism. 第一插接部和第二插接部插接时，底座(201)锁紧火炬壳体(101)，上燃气管道(121)和下燃气管道(221)连通，点火用公电触头和点火用母电触头连接；When the first and second plug parts are plugged in, the base (201) locks the torch housing (101), the upper gas pipeline (121) and the lower gas pipeline (221) are connected, and the ignition male contact and the ignition female contact are connected. 还包括插接到位反馈机构；It also includes a plug-in feedback mechanism; 插接到位反馈机构包括2个反馈用母电触头、2个反馈用公电触头和通电感应电路；The insertion feedback mechanism includes two female feedback contacts, two male feedback contacts, and an energized sensing circuit; 反馈用母电触头装配于下绝缘体(211)中，与反馈用母电触头尾部连接的第一电缆(213)穿过下电路腔后与通电感应电路连接；The feedback bus contact is assembled in the lower insulator (211), and the first cable (213) connected to the tail of the feedback bus contact passes through the lower circuit cavity and is connected to the energized induction circuit. 反馈用公电触头装配于上绝缘体(111)中，与2个反馈用公电触头尾部连接的2根第二电缆(113)短接；Feedback public contact is assembled in the upper insulator (111) and short-circuited with the two second cables (113) connected to the tail of the two feedback public contact; 第一插接部和第二插接部插接时，反馈用母电触头和反馈用公电触头连接，通电感应电路判断第一插接部和第二插接部插接是否插接到位，在插接到位时向外部点火控制系统发送插接到位信号，外部点火控制系统根据插接到位信号向点火用母电触头输出点火信号；When the first and second plug-in parts are plugged in, the feedback female electrical contact and the feedback male electrical contact are connected. The energized sensing circuit determines whether the first and second plug-in parts are plugged in properly. When they are plugged in properly, it sends a plug-in signal to the external ignition control system. The external ignition control system outputs an ignition signal to the ignition female electrical contact according to the plug-in signal. 下电路腔的个数等于反馈用母电触头和点火用母电触头的总个数，各下电路腔之间相互独立。The number of lower circuit cavities is equal to the total number of feedback bus contacts and ignition bus contacts, and each lower circuit cavity is independent of the others. 2.根据权利要求1所述的一种用于火炬的气电一体集成插接装置，其特征在于，底座(201)包括第一座体、设于第一座体上的第二座体和锁紧装置(230)；2. The gas-electric integrated plug-in device for a torch according to claim 1, characterized in that the base (201) includes a first base body, a second base body disposed on the first base body, and a locking device (230); 火炬壳体(101)上设有锁定孔(104)；The torch housing (101) is provided with a locking hole (104); 第二座体为筒状结构，底座芯(202)位于第二座体内且与第一座体固定连接；第二座体内壁与底座芯(202)外壁之间设有容纳火炬壳体(101)的空隙；The second seat is a cylindrical structure, with the base core (202) located inside the second seat and fixedly connected to the first seat; a gap is provided between the inner wall of the second seat and the outer wall of the base core (202) to accommodate the torch shell (101); 第二座体侧壁设有向外的凸起，凸起内设有贯穿侧壁的销孔；销孔的方向与第二座体轴线垂直；The second body has an outward protrusion on its side wall, and a pin hole that penetrates the side wall is provided in the protrusion; the direction of the pin hole is perpendicular to the axis of the second body. 锁紧装置(230)包括外螺母(231)、弹簧(232)和销轴(233)；弹簧(232)套于销轴(233)外部，销轴(233)第一端插入销孔中，第二端与外螺母(231)固定连接，外螺母(231)与凸起外表面螺接；The locking device (230) includes an outer nut (231), a spring (232) and a pin (233); the spring (232) is sleeved on the outside of the pin (233), the first end of the pin (233) is inserted into the pin hole, and the second end is fixedly connected to the outer nut (231), and the outer nut (231) is screwed to the outer surface of the protrusion; 销轴(233)第一端端面为斜面，第一插接部和第二插接部插接时，火炬壳体(101)向下进入第二座体内壁与底座芯(202)外壁之间所设空隙与所述斜面接触，向外推动销轴(233)并压缩弹簧(232)，直至火炬壳体(101)上所设锁定孔与销轴(233)对齐，销轴(233)在弹簧(232)的作用下进入定位孔实现底座(201)对火炬壳体(101)的锁紧。The first end face of the pin (233) is a bevel. When the first insertion part and the second insertion part are inserted, the torch housing (101) enters downward into the gap between the inner wall of the second base and the outer wall of the base core (202) and contacts the bevel. The pin (233) is pushed outward and the spring (232) is compressed until the locking hole on the torch housing (101) is aligned with the pin (233). Under the action of the spring (232), the pin (233) enters the positioning hole to lock the base (201) onto the torch housing (101). 3.根据权利要求1所述的一种用于火炬的气电一体集成插接装置，其特征在于，下燃气管道(221)下端与下燃气腔内壁螺接，上燃气管道(121)上端与火炬壳体(101)螺接，第一插接部和第二插接部插接时，下燃气管道(221)上端和上燃气管道(121)下端插接，下燃气管道(221)上端外壁与上燃气管道(121)下端内壁配合，配合位置利用≥3道O型圈进行密封；3. The gas-electric integrated plug-in device for a torch according to claim 1, characterized in that the lower end of the lower gas pipe (221) is screwed to the inner wall of the lower gas chamber, the upper end of the upper gas pipe (121) is screwed to the torch shell (101), and when the first plug-in part and the second plug-in part are plugged in, the upper end of the lower gas pipe (221) and the lower end of the upper gas pipe (121) are plugged in, the outer wall of the upper end of the lower gas pipe (221) is fitted with the inner wall of the lower end of the upper gas pipe (121), and the fitted position is sealed by ≥3 O-rings; O型圈表面和上燃气管道(121)内壁涂有润滑脂，所述润滑脂在使用温度下的相似粘度≤700Pa.s；The surface of the O-ring and the inner wall of the upper gas pipe (121) are coated with grease, the grease having a similar viscosity of ≤700 Pa·s at the operating temperature; 下燃气腔上端为上大下小的喇叭口。The upper part of the lower gas chamber has a flared opening that is wider at the top and narrower at the bottom. 4.根据权利要求1所述的一种用于火炬的气电一体集成插接装置，其特征在于，下绝缘体(211)为设于下燃气腔外侧的筒形结构，下绝缘体(211)内壁与下燃气腔外壁接触；将点火用公电触头和反馈用公电触头统一称为公电触头(112)，将点火用母电触头和反馈用母电触头统一称为母电触头(212)；4. The gas-electric integrated plug-in device for a torch according to claim 1, characterized in that the lower insulator (211) is a cylindrical structure located outside the lower gas chamber, and the inner wall of the lower insulator (211) is in contact with the outer wall of the lower gas chamber; the ignition male electrical contact and the feedback male electrical contact are collectively referred to as the male electrical contact (112), and the ignition female electrical contact and the feedback female electrical contact are collectively referred to as the female electrical contact (212); 母电触头(212)装配于下绝缘体(211)内壁和外壁之间；The female electrical contact (212) is assembled between the inner wall and the outer wall of the lower insulator (211); 上绝缘体(111)为设于上燃气管道(121)外侧的筒形结构，公电触头(112)装配于上绝缘体(111)的内壁和外壁之间；The upper insulator (111) is a cylindrical structure located outside the upper gas pipeline (121), and the male electrical contact (112) is assembled between the inner wall and the outer wall of the upper insulator (111). 各下电路腔沿周向均匀分布于下燃气腔外侧，母电触头(212)均匀分布于下燃气腔外侧。Each lower circuit cavity is evenly distributed circumferentially on the outside of the lower gas cavity, and the mother electrical contacts (212) are evenly distributed on the outside of the lower gas cavity. 5.根据权利要求4所述的一种用于火炬的气电一体集成插接装置，其特征在于，母电触头(212)和公电触头(112)利用压力装配方法分别固定于下绝缘体(211)和上绝缘体(111)中；5. The gas-electric integrated plug-in device for a torch according to claim 4, characterized in that the female electrical contact (212) and the male electrical contact (112) are respectively fixed in the lower insulator (211) and the upper insulator (111) by pressure assembly method; 母电触头(212)头部位置低于下绝缘体(211)上端；公电触头(112)的头部伸出上绝缘体(111)；The head of the female contact (212) is lower than the upper end of the lower insulator (211); the head of the male contact (112) extends out of the upper insulator (111); 第一插接部和第二插接部插接时，下绝缘体(211)上端和上绝缘体(111)下端配合，母电触头(212)头部和公电触头(112)的头部连接；下绝缘体(211)外壁上端设有倒角，上绝缘体(111)外壁下端留有与所述倒角匹配的凸台(1111)。When the first and second plug-in parts are plugged in, the upper end of the lower insulator (211) and the lower end of the upper insulator (111) are engaged, and the head of the female contact (212) and the head of the male contact (112) are connected; the upper end of the outer wall of the lower insulator (211) is provided with a chamfer, and the lower end of the outer wall of the upper insulator (111) is provided with a boss (1111) that matches the chamfer. 6.根据权利要求5所述的一种用于火炬的气电一体集成插接装置，其特征在于，下绝缘体(211)内壁上端高于下燃气腔上端，下燃气管道(221)上端低于下燃气腔上端；6. The gas-electric integrated plug-in device for a torch according to claim 5, characterized in that the upper end of the inner wall of the lower insulator (211) is higher than the upper end of the lower gas chamber, and the upper end of the lower gas pipe (221) is lower than the upper end of the lower gas chamber; 下绝缘体(211)内壁上端设有环向凸台(2112)，上绝缘体(111)内壁下端设有与环向凸台(2112)匹配的环向凹槽(1112)。The upper end of the inner wall of the lower insulator (211) is provided with a circumferential boss (2112), and the lower end of the inner wall of the upper insulator (111) is provided with a circumferential groove (1112) that matches the circumferential boss (2112). 7.根据权利要求4所述的一种用于火炬的气电一体集成插接装置，其特征在于，下绝缘体(211)外径与底座芯(202)最大外径相等；下绝缘体(211)外壁面和底座芯(202)外壁面组成连续的圆柱壁面；7. The gas-electric integrated plug-in device for a torch according to claim 4, characterized in that the outer diameter of the lower insulator (211) is equal to the maximum outer diameter of the base core (202); the outer wall surface of the lower insulator (211) and the outer wall surface of the base core (202) form a continuous cylindrical wall surface; 所述圆柱壁面上设有沿轴向的限位凹槽(240)，火炬壳体(101)内壁设有沿轴向的限位凸起(103)，第一插接部和第二插接部插接时，限位凹槽(240)和限位凸起(103)配合进行周向限位。The cylindrical wall surface is provided with an axially oriented limiting groove (240), and the inner wall of the torch shell (101) is provided with an axially oriented limiting protrusion (103). When the first insertion part and the second insertion part are inserted, the limiting groove (240) and the limiting protrusion (103) cooperate to perform circumferential limiting. 8.根据权利要求1所述的一种用于火炬的气电一体集成插接装置，其特征在于，火炬壳体(101)上设有电缆通过孔，第二电缆(113)一端与公电触头(112)尾部连接，另一端穿过电缆通过孔与火炬点火机构连接；8. The gas-electric integrated plug-in device for a torch according to claim 1, characterized in that a cable through hole is provided on the torch housing (101), one end of the second cable (113) is connected to the tail of the public contact (112), and the other end passes through the cable through hole and is connected to the torch ignition mechanism. 第二电缆(113)与电缆通过孔之间填充绝缘胶密封。The second cable (113) is sealed with insulating glue between itself and the cable through hole. 9.根据权利要求5所述的一种用于火炬的气电一体集成插接装置，其特征在于，下绝缘体(211)和上绝缘体(111)中分别设有下绝缘体槽(214)和上绝缘体槽(114)；9. A gas-electric integrated plug-in device for a torch according to claim 5, characterized in that a lower insulator groove (214) and an upper insulator groove (114) are respectively provided in the lower insulator (211) and the upper insulator (111); 母电触头(212)与第一电缆(213)的连接处位于下绝缘体槽(214)中，公电触头(112)与第二电缆(113)的连接处位于上绝缘体槽(114)中，下绝缘体槽(214)和上绝缘体槽(114)中填充绝缘胶。The connection between the female contact (212) and the first cable (213) is located in the lower insulator groove (214), and the connection between the male contact (112) and the second cable (113) is located in the upper insulator groove (114). The lower insulator groove (214) and the upper insulator groove (114) are filled with insulating glue.
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