CN113517577B - Temperature rise test patch board and temperature rise test connector - Google Patents
Temperature rise test patch board and temperature rise test connector Download PDFInfo
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- CN113517577B CN113517577B CN202110638683.3A CN202110638683A CN113517577B CN 113517577 B CN113517577 B CN 113517577B CN 202110638683 A CN202110638683 A CN 202110638683A CN 113517577 B CN113517577 B CN 113517577B
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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
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/16—Fastening of connecting parts to base or case; Insulating connecting parts from base or case
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention relates to a temperature rise test wiring disc and a temperature rise test connector, wherein the temperature rise test wiring disc comprises a disc body and a wiring conductor unit, the wiring conductor unit comprises a wiring barrel and a wiring terminal, the wiring terminal is coaxially arranged in the wiring barrel, and an insulating sealing structure is arranged between the wiring barrel and the wiring terminal; the wiring conductor unit is hermetically and insulatively arranged on the disc body, an inner connecting end is exposed at one side of the wiring disc, and an outer connecting end is exposed at the other side of the wiring disc; the wiring barrel is used for being in conductive connection with an outer ring conductor of the temperature rise test connector, and the wiring terminal is used for being in conductive connection with a central conductor of the temperature rise test connector. Because the wiring barrel and the wiring terminal have rigidity, after the wiring barrel and the wiring terminal are sealed and insulated on the tray body, the sealing performance is not easily influenced by torsional stretching, and air leakage is avoided; moreover, two paired thermocouple wires can be connected on the temperature rise test wiring tray through one-time connection operation of the temperature rise test connector, and wiring is convenient.
Description
Technical Field
The invention relates to a temperature rise test patch panel and a temperature rise test connector.
Background
A main loop of a novel structure of gas insulated metal enclosed equipment (GIS and GIL) needs to be subjected to temperature rise test to verify the through-current performance in the research and development process, and rated pressure SF is filled in the GIS and GIL shells in the process 6 The temperature measuring points of gas are distributed at the part needing to be checked of an internal conductor or an air chamber, the current common temperature rise testing method is a thermocouple, the basic principle is that two conductors made of different materials form a closed loop, one end of the loop is in short circuit and is used as a working end, the short circuit is directly embedded into the part to be tested of the conductor, the other end of the loop is used as a cold end, and the loop is led out of a shell through a wiring board and is connected with a measuring instrument. Because the two conductors are made of different materials, different electron densities generate electron diffusion, and potential is generated after stable and balanced, when gradient temperature exists at the two ends, current can pass through the loop to generate thermoelectromotive force, and the thermoelectromotive force can be converted into a temperature value according to the functional relation between the thermoelectromotive force and the temperature.
The structure of a temperature rise test patch panel commonly used at present is shown in fig. 1 and fig. 2, the patch panel comprises a panel body 10, the panel body 10 is made of an insulating material, a certain number of through holes are processed on the panel body 10, two thermocouple wires 20 with certain lengths penetrate through the panel body 10 in pairs from the through holes, a layer of epoxy resin adhesive layer 30 is poured on two end faces of a crossing part of the thermocouple wires 20 penetrating through the panel body 10 to fix the thermocouple wires 20 and realize air tightness, and the patch panel is hermetically installed on a gas-insulated metal sealing device. When GIS and GIL temperature rise tests are carried out, thermocouple wires at two ends of a wiring board are connected in a splicing mode in a welding mode, a compression joint mode, a twisting mode and the like to prolong the length of the thermocouple wires, short circuits of two paired thermocouple wires are embedded into a tested conductor at a working end prolonged in gas insulated metal closed equipment, and the two paired thermocouple wires are connected to test instrument equipment at a cold end prolonged outside the gas insulated metal closed equipment, so that the temperature rise value of the GIS and GIL inner conductors is tested.
Because the outer insulating protective layer of the thermocouple wire is thin, the material tightness is poor, the section of the metal conductor core in the thermocouple wire is small, the thermocouple wire can not be twisted or stretched in any state when passing through the base plate in the wiring process and the actual use process, and the problems of air leakage and internal disconnection commonly occur in GIS and GIL temperature rise tests. Furthermore, when two thermocouple wires in a pair are connected, it is necessary to connectTwo wires need to be respectively spliced, and the connection is inconvenient. At the same time, since it is at the rated SF 6 Through-flow test is carried out under gas pressure, and the number of temperature measuring points is generally large, so that the wiring plate used for the temperature rise test is required to have good sealing performance, and meanwhile, as many lead-out wires as possible can be arranged in a limited area.
Disclosure of Invention
The invention aims to provide a temperature rise test patch panel to solve the problems that the current temperature rise test patch panel is easy to leak air and inconvenient to wire; the invention aims to provide a temperature rise test connector matched with a temperature rise test wiring disc for use, and the temperature rise test connector is used for solving the problems that in the prior art, air leakage is easy to occur in the wiring process and the actual use process, and wiring is inconvenient.
The technical scheme of the temperature rise test wiring board is as follows:
temperature rise test wiring dish includes:
a tray body;
a wiring conductor unit comprising:
the wiring barrel is coaxial with the wiring terminal, and an insulating sealing structure is arranged between the wiring barrel and the wiring terminal;
the wiring conductor unit is hermetically and insulatively arranged on the disc body, an inner connecting end used for being in adaptive connection with a temperature rise test connector for connecting two paired thermocouple wires is exposed at one side of the wiring disc, and an outer connecting end used for being in adaptive connection with a temperature rise test connector for connecting a measuring instrument is exposed at the other side of the wiring disc;
the inner connecting end comprises an inner end of a connecting wire cylinder and an inner end of a binding post, the outer connecting end comprises an outer end of the connecting wire cylinder and an outer end of the binding post, the connecting wire cylinder is used for being in conductive connection with an outer ring conductor of the temperature rise test connector, and the binding post is used for being in conductive connection with a center conductor of the temperature rise test connector.
Has the advantages that: the wiring conductor unit is formed by the wiring barrel and the wiring terminal, so that the conductor is directly installed on the disc body in a sealing and insulating way, and the wiring barrel and the wiring terminal have rigidity in self structures, so that the sealing performance is not easily influenced by torsional stretching, and air leakage is avoided; in addition, the wiring conductor unit is a composite wiring conductor formed by hermetically and insulatively installing wiring posts in the wiring barrel, so when the temperature rise test wiring board is used, the inner connecting end of the wiring conductor unit is connected with the temperature rise test connector in an adaptive mode to connect the two paired thermocouple wires, the outer connecting end of the wiring conductor unit is connected with a measuring instrument through the temperature rise test connector, the wiring barrel is connected with the corresponding one of the two paired thermocouple wires through the outer ring conductor of the temperature rise test connector, the other one of the two paired thermocouple wires is electrically conducted with the wiring posts through the central conductor of the temperature rise test connector, and therefore the two paired thermocouple wires can be connected on the temperature rise test wiring board through one-time connection operation of the temperature rise test connector, and wiring is convenient.
Furthermore, a pouring liquid overflowing channel is formed in the wiring barrel, so that the wiring conductor unit can be poured and fixed on the disc body, and an insulating part formed by pouring the pouring liquid between the wiring barrel and the wiring terminal forms the insulating sealing structure.
Has the beneficial effects that: through setting up the pouring liquid and overflowing the passageway, when pouring the fixed wiring conductor unit, the pouring liquid can flow into the cavity between a wiring section of thick bamboo and the terminal to make the terminal seal and fix in a wiring section of thick bamboo insulatingly after the pouring liquid solidification, make the wiring section of thick bamboo seal and fix on the disk body insulatingly.
Furthermore, the pouring liquid overflowing channel is a spiral channel spirally extending along the circumferential direction of the winding wire barrel.
Has the advantages that: flow through the passageway through setting up spiral watering liquid to it fills corresponding cavity between a terminal cylinder and the terminal fully to water the material, with fully sealed after the solidification, avoids appearing the air gap and influences sealing performance, is favorable to improving the fixed stability of a terminal cylinder on the disk body moreover.
Furthermore, a concave-convex structure is arranged on the binding post.
Has the beneficial effects that: the joint surface is increased, so that the fastening and installation of the binding post are facilitated, and the air tightness is enhanced.
Furthermore, at the inner connecting end or the outer connecting end of the wiring conductor unit, one of the wiring barrel and the wiring terminal is provided with a wiring threaded section, the other one is provided with a wiring contact surface, the wiring threaded section is used for being in adaptive connection with the conduction threaded section of the temperature rise test connector, and the wiring contact surface is used for being in adaptive contact with the conduction contact surface of the temperature rise test connector.
Has the advantages that: the wiring conductor unit is fixedly connected with the temperature rise test connector through threads, and the connection is convenient and reliable.
Further, the wiring contact surface is a contact end surface formed by an end surface of the wiring barrel or the wiring terminal.
Has the advantages that: the terminal surface is contacted, so that when the connection thread section and the conduction thread section are screwed up and connected, the connection contact surface is in compression contact with the conduction contact surface, the effect that the contact surface is compressed more when the thread connection is screwed up is formed, and the compression contact is reliable.
Further, the contact end surfaces on the same side of the disc body are axially staggered with the wiring threaded section.
Has the beneficial effects that: the end part of the wiring terminal and the end part of the wiring barrel are arranged at intervals, the wiring barrel and the contact column are axially staggered at the position which is used for being connected with the adaptive conductor, so that the wiring barrel and the contact column are respectively and correspondingly connected with the adaptive conductor, the connection position has larger intervals, and insulation distinguishing is facilitated.
Furthermore, the wiring threaded section is arranged on the wiring barrel, the contact end face is arranged on the wiring terminal, and the end part of the wiring terminal extends out of the barrel opening of the wiring barrel.
Has the advantages that: set up the wiring screw thread section on a wiring section of thick bamboo to by the terminal surface that stretches out outside the nozzle of a wiring section of thick bamboo and form the contact terminal surface, thereby utilize and carry out threaded connection by outer wiring section of thick bamboo, make things convenient for the temperature rise test connector of adaptation to connect and be favorable to connecting firm, be favorable to reducing the length of adaptation center conductor moreover, conveniently set up center conductor on the temperature rise test connector.
The technical scheme of the temperature rise test connector is as follows:
temperature rise test connector, with the supporting use of wiring conductor unit on the temperature rise test wiring dish, include:
a wire holder;
the conduction unit is arranged on the wire holder and is used for being connected with the wiring conductor unit on the temperature rise test wiring plate;
the conduction unit comprises an outer ring conductor and a central conductor, the central conductor is positioned in the outer ring conductor, and the central conductor and the outer ring conductor are insulated and coaxially arranged;
the outer ring conductor is used for being in conductive connection with the wiring barrel of the wiring conductor unit, the central conductor is used for being in conductive connection with the wiring terminal of the wiring conductor unit, and the outer ring conductor and the central conductor are respectively provided with a connecting portion used for being correspondingly connected with two thermocouple wires in pairs.
Has the beneficial effects that: the central conductor is arranged in the outer ring conductor to form a conduction unit which is correspondingly connected with the wiring conductor unit, the two thermocouple wires in pairs are connected with the wiring conductor unit on the temperature rise test wiring disc through the temperature rise test connector, and when the thermocouple wire is connected with the adaptive wiring conductor unit formed by the wiring barrel and the wiring terminal, the wiring barrel and the wiring terminal have rigidity, so that the sealing performance is not easily influenced due to torsional stretching, and air leakage is avoided; and set up the central conductor in the outer ring conductor and formed combined type temperature rise test connector, the outer ring conductor through the temperature rise test connector will connect a binding post section of thick bamboo and two thermocouple wires that are pairwise corresponding and be connected, another one of two thermocouple wires that are pairwise passes through the central conductor and the terminal connection of temperature rise test connector to can realize two thermocouple wires that are pairwise connecting on the temperature rise test terminal pad through the once-through connection operation of temperature rise test connector, the wiring is convenient.
Furthermore, one of the outer ring conductor and the central conductor is provided with a conduction thread section, the other one of the outer ring conductor and the central conductor is provided with a conduction contact surface, the conduction thread section is used for being in adaptive connection with the wiring thread section of the corresponding wiring conductor unit on the temperature rise test wiring disc, and the conduction contact surface is used for being in adaptive contact with the wiring contact surface of the corresponding wiring conductor unit on the temperature rise test wiring disc.
Has the advantages that: the temperature rise test connector is fixedly connected with the corresponding wiring conductor unit on the temperature rise test wiring plate in a threaded manner, and the connection is convenient and reliable.
Furthermore, the conducting contact surface is a conducting end surface formed by an end surface of the outer ring conductor or the central conductor exposed on one side of the wire holder, and is used for being abutted by a corresponding contact end surface in the wiring conductor unit on the temperature rise test wiring tray.
Has the beneficial effects that: the terminal surface is contacted, so that when the connection thread section and the conduction thread section are screwed up and connected, the connection contact surface is in compression contact with the conduction contact surface, the effect that the contact surface is compressed more when the thread connection is screwed up is formed, and the compression contact is reliable.
Further, the conducting end face is axially staggered from the conducting threaded section.
Has the advantages that: the outer ring conductor and the central conductor are axially staggered at the connection part of the wiring barrel or the wiring terminal of the wiring conductor unit on the temperature rise test wiring disc, so that the outer ring conductor and the central conductor are respectively and correspondingly connected with the adaptive conductor, and the connection part has larger intervals, so that the outer ring conductor and the central conductor are convenient to insulate and distinguish.
Further, the conduction thread section is arranged on the outer ring conductor, the conduction end face is arranged on the central conductor, and the conduction end face is located on the inner side of the conduction thread section in the axial direction.
Has the beneficial effects that: the conduction thread section is arranged on the outer ring conductor, and the conduction end face is formed by the end face, located on the outer side in the axial direction, of the outer ring conductor, so that the connection barrel close to the outer portion is utilized for threaded connection, connection is convenient, connection stability is facilitated, and reduction of the length of the central conductor located on the inner side is facilitated.
Further, the outer ring conductor comprises an outer ring polar plate fixedly arranged on the wiring seat and a metal nut movably sleeved on the wiring seat, the front end of the metal nut is provided with the conduction thread section, the outer ring polar plate is electrically conducted with the wiring barrel through the metal nut, and the middle polar plate is screwed up through the metal nut and is pressed with the wiring column to achieve electrical contact conduction.
Has the advantages that: the metal nut who establishes through the movable sleeve revolves the twisting operation, realizes that the wiring conductor unit electrical contact on temperature rise test connector and the temperature rise test wiring dish switches on, and electrical contact is reliable, conveniently simultaneously through revolving twisting metal nut high-speed joint or removing the temperature rise test connector, can not drive the thermocouple wire during the twisting operation yet, avoids the winding.
Furthermore, a forward stop surface is arranged in an inner hole of the metal nut, and the outer ring polar plate is provided with a backward stop surface opposite to the forward stop surface so that the metal nut is in pressing contact with the outer ring polar plate when the metal nut is screwed forwards.
Has the advantages that: the forward stop surface and the backward stop surface are in pressing contact, so that the contact is reliable, the effect that the metal nut is screwed more and more closely when the metal nut is screwed can be formed by utilizing the screwing process of the metal nut, and the contact reliability is improved.
Drawings
FIG. 1 is a schematic diagram of a prior art terminal pad;
FIG. 2 is a schematic cross-sectional view of a land of the prior art;
FIG. 3 is a schematic structural view of embodiment 1 of the temperature rise test land of the present invention;
FIG. 4 is a schematic cross-sectional view of the temperature rise test junction plate of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
fig. 6 is a schematic structural view of a wiring conductor unit in the present invention;
fig. 7 is a schematic view showing a state in which the temperature rise test connector and the wiring conductor unit of the present invention are connected.
In the figure: 100. a tray body; 200. a thermocouple wire; 300. an epoxy resin cementing layer; 1. a tray body; 2. a wiring conductor unit; 21. a wire connecting cylinder; 22. a binding post; 211. a pouring liquid flow passage; 222. a protrusion; 3. a metal nut; 31. an inner baffle table; 4. a wire holder; 41. a center conductor; 42. an outer ring polar plate; 43. a plastic package body; 44. two thermocouple wires in a pair.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration only, not by way of limitation, i.e., the embodiments described are intended as a selection of the best mode contemplated for carrying out the invention, not as a full mode. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, a term "comprising a" \8230; "8230;" defining an element by a possible occurrence does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
Example 1 of a temperature rise test terminal pad of the present invention:
as shown in fig. 3 and 4, the temperature rise test wiring board includes a board body 1 and a plurality of wiring conductor units 2 fixed on the board body 1, two ends of each wiring conductor unit 2 extend out of the board surface of the board body 1, two ends of each wiring conductor unit 2 are respectively an inner connecting end and an outer connecting end, the inner connecting end and the outer connecting end are respectively exposed at two sides of the wiring board, the inner connecting end is used for being connected with a temperature rise test connector of two paired thermocouple wires in an adaptive manner, and the outer connecting end is used for being connected with a temperature rise test connector of a measuring instrument in an adaptive manner, so that the two paired thermocouple wires inside the gas insulated metal closed equipment are led out of the equipment through the temperature rise test wiring board and are connected with the measuring instrument, so as to perform the temperature rise test.
As shown in fig. 4, 5 and 6, the connection conductor unit 2 is fixed on the tray body 1 by casting, the connection conductor unit 2 includes a connection cylinder 21 and a terminal 22, the terminal 22 is located in the connection cylinder 21, the connection cylinder 21 and the terminal 22 are coaxially arranged, a casting liquid overflowing channel 211 is arranged on the connection cylinder 21, the casting liquid overflowing channel 211 is a spiral channel spirally extending along the circumference of the connection cylinder, the casting liquid overflowing channel 211 is used for enabling casting liquid to flow into a cavity between the connection cylinder 21 and the terminal 22 when the connection conductor unit 2 is fixed by casting, the casting liquid filled between the connection cylinder 21 and the terminal 22 forms an insulating and sealing structure after being solidified, so that the terminal 22 is fixed in the connection cylinder 21 in a sealing and insulating manner, the connection cylinder 21 is fixed on the tray body 1 in a sealing and insulating manner, and by arranging the spiral overflowing channel 211, the liquid casting material can be sufficiently filled into the corresponding cavity between the connection cylinder 21 and the terminal 22, thereby forming a good sealing after being solidified, avoiding air gaps from affecting the sealing performance, and being beneficial to improving the stability of the connection cylinder 21 on the tray body 1.
The wiring terminal 22 is provided with a concave-convex structure, the concave-convex structure comprises protrusions 222 arranged on the outer peripheral surface of the wiring terminal 22 at intervals and depressions between the protrusions 222, the protrusions 222 are wavy and are arranged at two sections at intervals, and the positions of the two sections of protrusions 222 correspond to the positions of the pouring liquid overflowing channels 211 so as to be embedded in the tray body 1 after the wiring terminal 22 is poured and fixed, so that the effects of fastening and mounting the wiring terminal 22 and enhancing the air tightness are achieved.
When the connector is used, one end of the wiring conductor unit 2, which is positioned inside the gas insulation metal sealing device, is an inner connecting end, one end, which is positioned outside the gas insulation metal sealing device, is an outer connecting end, two ends of the wiring cylinder 21 and the wiring terminal 22 are respectively an inner end and an outer end and both extend out of the disc surface of the disc body 1, the inner connecting end of the wiring conductor unit 2 comprises the inner end of the wiring cylinder 21 and the inner end of the wiring terminal 22, the outer connecting end of the wiring conductor unit 2 comprises the outer end of the wiring cylinder 21 and the outer end of the wiring terminal 22, the wiring cylinder 21 and the wiring terminal 22 form a pair, the wiring cylinder 21 is used for being in conductive connection with an outer ring conductor of the adaptive temperature rise test connector, and the wiring terminal 22 is used for being in conductive connection with a central conductor of the adaptive temperature rise test connector, and is in conductive connection with the adaptive temperature rise test connector, so as to be in conductive connection with two paired thermocouple wires. The wire barrel 21 and the post 22 are made of the same conductive material as the thermocouple wires to be conducted.
Both ends of a wiring barrel 21 all are equipped with the external screw thread, and the external screw thread is used for forming the wiring screw thread section to be used for with the conduction screw thread section threaded connection of the temperature rise test connector of wiring conductor unit 2 adaptation, terminal 22 both ends are equipped with the wiring contact surface, in order to be used for with the contact surface adaptation contact that switches on of temperature rise test connector. The contact surface of working a telephone switchboard is the contact surface that is formed by the terminal surface of terminal 22 to when screwing up with the screw thread section of conducting through the wiring screw thread section and being connected, make the contact surface of working a telephone switchboard and the contact surface of conducting compress tightly contact, form threaded connection and screw up the effect that the contact surface compressed tightly more, compress tightly the contact reliably, simultaneously, wiring conductor unit 2 is fixed with temperature rise test connector threaded connection, connects conveniently and connects reliably.
The length of terminal 22 is greater than the length of a wiring section of thick bamboo 21, and the both ends of terminal 22 stretch out outside the nozzle of a wiring section of thick bamboo 21 to in same one side of disk body 1, terminal 22's tip and a section of distance setting of the tip interval of a wiring section of thick bamboo 21, corresponding contact terminal surface staggers with wiring screw thread section axial, thereby be convenient for correspond separately with the adaptation conductor and be connected, and the junction has great interval, makes things convenient for the insulation to distinguish.
The whole body of the tray body 1 is made of epoxy resin materials through casting, and a sealing groove and a mounting hole are integrally formed, cast and prefabricated on the tray body 1. The wiring conductor unit 2 is fixed together with the disc body 1 by molding and pouring.
The wiring conductor unit 2 is directly installed on the disc body 1 in a sealing and insulating mode, so that the wiring cylinder 21 and the wiring terminal 22 have rigidity due to self structures, when the wiring cylinder 21 and the wiring terminal 22 are connected with the adaptive temperature rise test connector, the sealing performance is not easily influenced due to torsional stretching, air leakage is avoided, the wiring terminal 22 used for conducting one of the two paired thermocouple wires is arranged inside the wiring cylinder 21 used for conducting the other thermocouple wire, the wiring conductor unit 2 with a composite structure is formed, when the wiring conductor unit is connected with the adaptive temperature rise test connector, the two paired thermocouple wires can be connected on the temperature rise test wiring disc through one-time connection operation, and wiring is convenient; moreover, the wiring conductor unit 2 of the composite structure is compact in structure, and the number of the wiring conductor units can be increased as much as possible in a specific area of a limited area on the tray body 1; moreover, as shown in fig. 1, the wiring conductor units 2 are arranged at intervals in layers around the central point of the tray body 1, the arrangement is compact, the wiring conductor units 2 can be arranged on the tray body 1 as many as possible, and the use requirement of many temperature measuring points is met.
Example 2 of a temperature rise test land in the present invention:
the difference between this embodiment and embodiment 1 is that the connection conductor unit in embodiment 1 is integrally cast and fixed on the connection tray main body to realize insulation and sealing, and the casting liquid filled between the connection cylinder and the connection terminal is solidified to form an insulation and sealing structure.
Example 3 of a temperature rise test land in the present invention:
the difference between this embodiment and embodiment 1 is that the pouring liquid overflowing channel is arranged on the wiring barrel in embodiment 1 so that the wiring barrel and the wiring barrel can be fixed on the tray body by pouring in one step.
Example 4 of a temperature rise test land in the present invention:
the difference between the embodiment and the embodiment 1 is that the pouring liquid flow-through channel in the embodiment 1 is a spiral channel, and in the embodiment, the pouring liquid flow-through channel is long holes circumferentially arranged at intervals on the wiring barrel.
Example 5 of a temperature rise test land in the present invention:
the present embodiment is different from embodiment 1 in that the concave-convex structure on the post in embodiment 1 is formed by the wave-shaped protrusions and the depressions between the protrusions, whereas in this embodiment, the concave-convex structure is formed by the grooves discretely provided on the outer peripheral surface of the contact post and the portions between the grooves, and in this embodiment, the concave-convex structure may be formed by at least two ring grooves and the portions between the ring grooves.
Example 6 of a temperature rise test land in the present invention:
the present embodiment is different from embodiment 1 in that a wiring threaded section is provided on the wiring barrel in embodiment 1 to be threadedly connected to the adapted temperature rise test connector, whereas in this embodiment, a wiring threaded section is provided on the wiring barrel to be threadedly connected to the adapted temperature rise test connector, and accordingly, the contact end surface is formed by the end surface of the wiring barrel.
Example 7 of a temperature rise test land in the present invention:
the difference between this embodiment and embodiment 1 is that the tray body in embodiment 1 is formed by pouring an insulating material, and the wiring conductor unit is poured and fixed on the tray body, but in this embodiment, the tray body is made of a metal material, a through hole is formed in the tray body, and the wiring conductor unit is poured and fixed in the through hole to realize insulating and sealing installation.
Example 8 of a temperature rise test land of the present invention:
the difference between this embodiment and embodiment 1 is that both ends of the wire connecting cylinder and the terminal in embodiment 1 extend out of the disk surface of the disk body, so that both the inner connection end and the outer connection section of the wire connecting conductor unit are exposed out of one side of the wire connecting disk, while in this embodiment, both ends of the wire connecting cylinder and the terminal are retracted into the disk body, and accordingly, the disk body is provided with openings for exposing both ends of the wire connecting cylinder and the terminal, so that the conductor of the adaptive temperature rise test connector extends into the disk body and is connected with the wire connecting conductor unit.
Example 9 of a temperature rise test land in the invention:
the difference between this embodiment and embodiment 1 is that both ends of the terminal in embodiment 1 extend out of the wiring barrel, so that the contact end surface and the wiring thread section are axially staggered, whereas in this embodiment, both ends of the terminal are retracted into the wiring barrel, the contact end surface and the wiring thread section are axially staggered, and accordingly, the adaptive conductor in conductive contact with the terminal extends into the wiring barrel to be conductively connected with the terminal.
Example 1 of temperature-rise test connector in the invention:
as shown in fig. 7, the temperature-rise test connector is used for being used with the wiring conductor unit 2 fixed on the disk body 1 of the temperature-rise test wiring disk in a matched manner, the temperature-rise test connector comprises a wiring seat 4 and a conduction unit arranged on the wiring seat 4, the conduction unit is used for being in conductive contact with the wiring conductor unit 2 on the temperature-rise test wiring disk, the conduction unit comprises a central conductor 41 and an outer ring conductor, the outer ring conductor comprises an outer ring polar plate 42 and a metal nut 3, the metal nut 3 is movably sleeved on the wiring seat 4, and the temperature-rise test connector is connected with the wiring conductor unit 2 on the wiring barrel of the wiring conductor unit 2 through the metal nut 3 in a threaded connection manner.
The central conductor 41 is positioned in the outer ring conductor, the central conductor 41 is arranged coaxially with the outer ring conductor, and the central conductor 41 is insulated from the outer ring conductor. The wire holder 4 includes a plastic package body 43, the central conductor 41 and the outer ring plate 42 are arranged at an interval, the central conductor 41 is located on the front side of the outer ring plate 42, the central conductor 41 and the outer ring plate 42 are connected with two paired thermocouple wires 44, the central conductor 41 and the outer ring plate 42 are respectively provided with a connecting portion for being correspondingly connected with one of the two paired thermocouple wires so as to be correspondingly welded and fixed with the two paired thermocouple wires 44 one by one, and the outer ring plate 42 is provided with a through hole for the thermocouple wire correspondingly connected with the central conductor 41 to pass through. The central conductor 41 and the outer ring plate 42 are integrally cast and fixed in the plastic package body 43. The plastic package body 43 has a portion penetrating through the through hole of the outer ring plate 42 and located at the rear side of the outer ring plate 42, so as to provide a limiting support for the metal nut 3 and protect the thermocouple wires. The front end of the metal screw cap 3 is provided with a conducting thread section which is used for being in adaptive connection with a wiring thread section on a wiring barrel of the corresponding wiring conductor unit 2 on the temperature rise test wiring disc. The rear end face of the outer ring pole plate 42 has a portion exposed outside the plastic package body 43 to form a backward-facing stopper face, the rear end in the inner hole of the metal nut 3 is provided with an inner stopper 31, the inner stopper 31 has a forward-facing stopper face, the backward-facing stopper face of the outer ring pole plate 42 is matched with the forward-facing stopper face of the metal nut 3, so that when the metal nut 3 is screwed forward to be connected to the wire barrel of the wire-connection conductor unit 2, the metal nut 3 is in pressing contact with the outer ring pole plate 42, and the outer ring pole plate 42 is electrically conducted with the wire barrel of the wire-connection conductor unit 2 through the metal nut 3.
The central conductor 41 is a plate-shaped structure and has a conduction contact surface for being in adaptive contact with the wiring contact surface of the corresponding wiring conductor unit on the temperature rise test wiring board, the front side of the plastic package body 43 is provided with an open hole for letting out the front end surface of the central conductor 41, so that the front end surface of the central conductor 41 is exposed at the front side of the wiring seat 4, the conduction contact surface of the central conductor 41 is a conduction end surface formed by the front end surface of the central conductor, and the conduction end surface is used for being in butt contact with the contact end surface of the wiring terminal corresponding to the wiring conductor unit 2 on the temperature rise test wiring board. The central conductor 41 is pressed against the terminal of the terminal conductor unit 2 by tightening the metal nut 3 to achieve electrical contact conduction. Can make the terminal separation of connection terminal 4 and wiring conductor unit 2 through the unscrewing of metal nut 3, realize that temperature rise test connector and temperature rise test terminal dish remove, reach the purpose that temperature rise test connector high-speed joint or removed.
The conduction thread section of the metal nut 3 is positioned on the front side of the conduction end face of the central conductor 41, the conduction end face and the conduction thread section are axially staggered, the conduction thread section is axially arranged outwards, and the conduction end face is axially arranged inwards, so that the outer ring conductor and the central conductor are axially staggered at the connecting part of a connecting cylinder or a connecting terminal of a connecting conductor unit on a temperature rise test wiring disc, the outer ring conductor and the central conductor are conveniently connected in a corresponding mode, the connecting part has large intervals, and insulation distinguishing is facilitated. And, carry out threaded connection through the outer loop conductor, connect convenient and be favorable to connecting firmly, and be favorable to reducing the length that is located inboard center conductor.
Set up central conductor and form combined type temperature-rise test connector in outer ring conductor, compact structure is favorable to reducing the size, can accomplish the connection of a pair of two thermocouple wires on the wiring dish through temperature-rise test connector and wiring conductor unit once connection operation moreover, and convenient operation saves operating space to be favorable to laying wiring conductor unit as much as possible in the specific area of limited area on the disk body. And, the metal nut who establishes through the movable sleeve revolves the operation of twisting, realizes that the wiring conductor unit electrical contact on temperature rise test connector and the temperature rise test wiring dish switches on, and electrical contact is reliable, conveniently connects or removes the temperature rise test connector through revolving the nut fast simultaneously, also can not drive the thermocouple wire during the operation of twisting, avoids the winding. The thermocouple wire is quick, simple and convenient to splice, the phenomenon of conductor virtual connection is avoided, the wire is not easily broken, the wiring disc installation in the earlier stage of the temperature rise test of the gas insulated metal enclosed device and the efficiency of the preparation work of the thermocouple wire splicing are improved, the electrical contact reliability of the splicing is ensured, the test failure caused by the wiring disc or the connection process problem is avoided, and the smooth implementation of the temperature rise test is ensured.
Example 2 of the temperature-rise test connector in the present invention:
the present embodiment is different from embodiment 1 in that the temperature-rise test connector in embodiment 1 is screwed to the wiring conductor unit on the temperature-rise test wiring board, and in this embodiment, the temperature-rise test connector is inserted into the wiring conductor unit on the temperature-rise test wiring board.
Example 3 of the temperature-rise test connector in the present invention:
the present embodiment is different from embodiment 1 in that the outer ring conductor in embodiment 1 includes a metal nut which is screwed with the terminal of the corresponding terminal conductor unit, whereas in the present embodiment, the center conductor is screwed with the terminal of the corresponding terminal conductor unit, and the outer ring conductor is in press contact with the terminal.
Example 4 of the temperature-rise test connector in the present invention:
the difference between this embodiment and embodiment 1 is that the outer ring conductor in embodiment 1 includes an outer ring pole plate and a metal nut which are separately arranged, and the metal nut is movably sleeved on the wire holder.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (12)
1. Temperature rise test wiring dish, characterized by includes:
a tray body;
a wiring conductor unit comprising:
the wiring barrel is coaxial with the wiring terminal, and an insulating sealing structure is arranged between the wiring barrel and the wiring terminal;
the wiring conductor unit is hermetically and insulatively arranged on the disc body, an inner connecting end used for being in adaptive connection with a temperature rise test connector for connecting two paired thermocouple wires is exposed at one side of the wiring disc, and an outer connecting end used for being in adaptive connection with a temperature rise test connector for connecting a measuring instrument is exposed at the other side of the wiring disc;
the inner connecting end comprises the inner end of a connecting tube and the inner end of a binding post, the outer connecting end comprises the outer end of the connecting tube and the outer end of the binding post, the two ends of the connecting tube are respectively used for being in conductive connection with a temperature rise test connector connected with a measuring instrument and an outer ring conductor of the temperature rise test connector connected with two paired thermocouple wires, and the two ends of the binding post are respectively used for being in conductive connection with a temperature rise test connector connected with the measuring instrument and a central conductor of the temperature rise test connector connected with the two paired thermocouple wires;
and a pouring liquid overflowing channel is formed in the wiring barrel so that the wiring conductor unit can be poured and fixed on the disc body, and an insulating part formed by pouring the pouring liquid between the wiring barrel and the wiring terminal forms the insulating sealing structure.
2. The temperature rise test terminal block according to claim 1, wherein the pouring liquid flow passage is a spiral passage extending spirally around the circumference of the terminal block.
3. The temperature rise test junction plate according to claim 1, wherein the terminal is provided with a concave-convex structure.
4. Temperature-rise test patch panel according to any one of claims 1 to 3, characterized in that: the temperature rise test connector is connected with the temperature rise test connector of the measuring instrument and the conduction contact surface of the temperature rise test connector connected with the two thermocouple wires in pair.
5. The temperature rise test terminal block according to claim 4, wherein the terminal contact surface is a contact end surface formed by an end surface of the terminal barrel or the terminal post.
6. The temperature rise test terminal block of claim 5, wherein said contact end surfaces on the same side of the block body are axially offset from said terminal threaded section.
7. The temperature rise test patch panel of claim 6, wherein the wiring thread section is arranged on the wiring barrel, the contact end face is arranged on the wiring post, and the end part of the wiring post extends out of the barrel opening of the wiring barrel.
8. Temperature rise test connector, characterized by, with the supporting use of wiring conductor unit on the temperature rise test wiring dish, include:
a wire holder;
the conduction unit is arranged on the wire holder and is used for being connected with the wiring conductor unit on the temperature rise test wiring plate;
the conduction unit comprises an outer ring conductor and a central conductor, the central conductor is positioned in the outer ring conductor, and the central conductor and the outer ring conductor are insulated and coaxially arranged;
the outer ring conductor is used for being in conductive connection with a wiring barrel of the wiring conductor unit, the central conductor is used for being in conductive connection with a wiring terminal of the wiring conductor unit, and the outer ring conductor and the central conductor are respectively provided with a connecting part used for being correspondingly connected with two paired thermocouple wires;
one of the outer ring conductor and the central conductor is provided with a conduction thread section, the other one of the outer ring conductor and the central conductor is provided with a conduction contact surface, the conduction thread section is used for being in adaptive connection with the wiring thread section of the corresponding wiring conductor unit on the temperature rise test wiring disc, and the conduction contact surface is used for being in adaptive contact with the wiring contact surface of the corresponding wiring conductor unit on the temperature rise test wiring disc;
the outer ring conductor comprises an outer ring polar plate fixedly arranged on the wiring seat and a metal nut movably sleeved on the wiring seat, the front end of the metal nut is provided with the conduction thread section, the outer ring polar plate is electrically conducted with the wiring barrel through the metal nut, and the middle polar plate is screwed up through the metal nut and is tightly pressed with the wiring column to achieve electrical contact conduction.
9. The temperature-rise test connector according to claim 8, wherein the conduction contact surface is a conduction end surface formed by an end surface of the outer ring conductor or the center conductor exposed to the wire holder side for abutting against a corresponding contact end surface in the wiring conductor unit on the temperature-rise test land.
10. The temperature-rise test connector according to claim 9, wherein the conducting end surface is axially offset from the conducting threaded section.
11. The temperature-rise test connector according to claim 10, wherein the conduction thread section is provided on the outer ring conductor, the conduction end surface is provided on the center conductor, and the conduction end surface is located axially inside the conduction thread section.
12. The temperature-rise test connector according to any one of claims 8 to 11, wherein the inner bore of the metal nut is provided with a forward facing stop surface, and the outer ring plate has a backward facing stop surface opposite to the forward facing stop surface so that the metal nut is in pressing contact with the outer ring plate when the metal nut is screwed forward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110638683.3A CN113517577B (en) | 2021-06-08 | 2021-06-08 | Temperature rise test patch board and temperature rise test connector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110638683.3A CN113517577B (en) | 2021-06-08 | 2021-06-08 | Temperature rise test patch board and temperature rise test connector |
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| CN113517577A CN113517577A (en) | 2021-10-19 |
| CN113517577B true CN113517577B (en) | 2023-03-07 |
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| CN202110638683.3A Active CN113517577B (en) | 2021-06-08 | 2021-06-08 | Temperature rise test patch board and temperature rise test connector |
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|---|---|
| CN113517577A (en) | 2021-10-19 |
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