CN110718817A - Plug-pull piece with temperature measurement function - Google Patents
Plug-pull piece with temperature measurement function Download PDFInfo
- Publication number
- CN110718817A CN110718817A CN201911092551.4A CN201911092551A CN110718817A CN 110718817 A CN110718817 A CN 110718817A CN 201911092551 A CN201911092551 A CN 201911092551A CN 110718817 A CN110718817 A CN 110718817A
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- China
- Prior art keywords
- temperature measurement
- mounting frame
- plug
- temperature
- function according
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- 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
- H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
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- 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
- H01R13/502—Bases; Cases composed of different pieces
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention relates to the technical field of electrical elements, in particular to a plug-pull piece with a temperature measuring function. Adopt above-mentioned technical scheme, simple structure, the technique is reasonable, simple to operate, it is various and the price is low to make the raw materials, and is not fragile, simple to operate, and the temperature toleration is strong, can carry out real-time supervision, easily promotes, need not to provide external power source, and signal transmission does not receive the interference, greatly reduced the potential safety hazard that high voltage heavy current environment exists.
Description
Technical Field
The invention relates to the technical field of electrical elements, in particular to a plug-pull piece with a temperature measuring function.
Background
The plug-in component is an indispensable component in a power supply system. The connector is generally divided into two halves, a plug and a receptacle. A plug generally refers to the non-fixed half. A plug with a male contact is called a male plug; a plug with a female contact is called a female plug. The receptacle generally refers to the half that is fixed (on the panel or chassis). The socket with the male contact is called a male socket; the socket with the female contacts is called the female socket.
As is well known, electrical cabinets are common devices in power supply systems, and each electrical cabinet is provided with a plug-in component for conducting current, and such plug-in components are all used in environments with high voltage and large current. Therefore, in such a high-voltage and high-current environment, the requirement for power supply reliability is also increasing. In such an environment, the plug member is in a long-time working state, the connection node is easy to heat, and the heating of the electrical equipment has a great potential safety hazard, so that the temperature measurement of the key node of the plug member becomes more and more important.
In practical application, the connecting node of plug piece is located cable joint department usually, and this part node can lead to resistance increase and generate heat because of ageing, contact failure, load overweight or artificial misoperation to can break down seriously and cause the electric power accident even, make equipment such as cables have certain application risk at any time, in case this type of problem takes place, the cable is very likely to catch fire, and the consequence and the loss that bring are very huge. In order to solve the problem of fire, the cable risk needs to be warned.
At present, the temperature of a plug-in part is detected by a temperature measuring instrument at regular time, the method has low efficiency and no real-time property, danger is easy to occur in the idle period of routing inspection, low-level errors are easy to occur manually, and the measurement of a high-voltage wire has certain danger to workers; have some plug temperature check out test set recently to adopt the sensor mode, it can real-time detection plug temperature, data pass through wireless mode and give the backstage and handle, real-time and efficiency scheduling problem has been solved, certain intellectuality has, but mostly all have the installation difficulty, the temperature toleration is poor, shortcoming such as anti-interference not, but these sensing equipment all need the battery, these batteries have life-span problem, in addition when the risk of starting a fire takes place, the battery can take place the burning or explode, the severity of risk is aggravated more likely.
Disclosure of Invention
The invention provides a plug-pull piece with a temperature measuring function according to the defects of the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a plug spare with temperature measurement function, includes the connecting piece in shell body and the installation shell body, be equipped with matched with temperature measurement label on the connecting piece.
Preferably, the temperature measurement tag is an RFID temperature measurement tag.
Preferably, the connecting piece comprises an upper mounting frame, a lower mounting frame and a conductive part, the conductive part is mounted between the upper mounting frame and the lower mounting frame, and the temperature measurement tag is attached to the conductive part.
Preferably, the upper mounting frame is provided with a fixing cavity corresponding to the temperature measuring tag.
Preferably, fixing grooves are formed in the upper mounting frame and the lower mounting frame corresponding to the conductive portions, respectively.
Preferably, a fixing clip is fixed in the lower mounting bracket, and the conductive portion is clamped to the fixing clip.
Preferably, the lower side of the upper mounting frame is provided with a buckle, and the upper side of the lower mounting frame is provided with a clamping plate corresponding to the buckle.
Preferably, the conductive part comprises a right connecting part and a left connecting part, and the temperature measurement tag is arranged on the right connecting part.
The invention has the following characteristics and beneficial effects:
adopt above-mentioned technical scheme, simple structure, the technique is reasonable, simple to operate, it is various and the price is low to make the raw materials, and is not fragile, simple to operate, and the temperature toleration is strong, can carry out real-time supervision, easily promotes, need not to provide external power source, and signal transmission does not receive the interference, greatly reduced the potential safety hazard that high voltage heavy current environment exists.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the connector in fig. 1.
In the figure, 1-outer shell, 2-connecting piece, 201-fixed cavity, 202-upper mounting rack, 203-buckle, 204-right connecting piece, 205-left connecting piece, 206-temperature measuring tag, 207-lower mounting rack, 208-clamping plate and 209-fixed clamp.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention provides a plug-pull piece with a temperature measuring function, which comprises an outer shell 1 and a connecting piece 2 installed in the outer shell 1, wherein a temperature measuring label 206 matched with the connecting piece 2 is arranged on the connecting piece 2, as shown in fig. 1 and 2.
Specifically, the temperature measurement tag 206 is an RFID temperature measurement tag.
It can be understood that the electric cabinet is provided with an RFID reader-writer by matching with the RFID temperature measurement label.
The temperature measurement tag comprises an RFID tag antenna and an RFID tag chip, the RFID tag antenna comprises a substrate and a copper sheet, the copper sheet is attached to the surface of the substrate, and the RFID tag chip is connected with the capacitive coupling poles at the two ends of the RFID tag antenna respectively.
It can be understood that the metal resistance of the RFID tag antenna is the same, the RFID tag antenna forms a radiation part through a copper sheet on a substrate, a metal object is used as a reflection part, and energy radiated by the radiation part is reflected by the reflection part and then superposed, so that the gain of the RFID tag antenna is improved, and the identification distance of the RFID tag antenna is greatly increased. When the RFID tag antenna is attached to a metal object (such as a conductive part), the reflection part can shield the influence of a metal part on one side of the reflection part, so that the identification distance is further increased, and the metal resistance effect is achieved.
The RFID reader-writer is externally connected with a reader-writer antenna, the antenna transmits radio frequency signals to supply power to the RFID temperature measuring tag and transmit data, so that the temperature of the RFID temperature measuring tag is read, and the read temperature is the temperature inside the cable joint because the RFID temperature measuring tag is arranged on the insulating plug. Due to the fact that the RFID temperature measurement tag 1 is in a radio frequency technology and does not have a built-in power supply, passive and wireless temperature measurement can be achieved, and theoretically, the RFID temperature measurement tag can be continuously used for more than 10 years. The requirement that products added in a ring main unit, a high-voltage cable branch box and the like for power application cannot be electrified and are not convenient to directly contact for temperature measurement is met.
Among the above-mentioned technical scheme, it is various and low in price to make raw materials, and is not fragile, simple to operate, and the temperature toleration is strong, can carry out real-time supervision, easily promotes, need not to provide external power source, and signal transmission is not disturbed, greatly reduced the potential safety hazard that high voltage heavy current environment exists.
In addition, the RFID tag chip is internally provided with a 512-bit data storage unit. The RFID tag chip supports EPCGlobal C1G2 communication interface.
In the technical scheme, the RFID tag chip obtains energy through the RF electromagnetic wave of 840MHz-960MHz by utilizing the advanced ultrahigh frequency radio wave energy collection technology, and a 512-bit data storage unit is arranged in the RFID tag chip and can store data such as user information.
It can be understood that the signal of the temperature sensor built in the RFID tag chip is read in a non-linear mode, the back-end number can realize rapid linearization according to preset parameters, and conversion between the read temperature data and the temperature in degrees centigrade (Fahrenheit) is facilitated. The chip supports EPC Global C1G2 v1.2 communication interface, and the matching of various UHF RFID read-write equipment can support a user to very conveniently build a passive wireless temperature sensing system within a range of 10 meters. When the antenna is matched with an RFID label to work, the reading sensitivity can reach about-18.7 dBm.
The invention does not limit the size and material of the appearance dimension, and only the example shows that the label is a circular object. The shape of the copper sheet on the surface of the RFID tag antenna is not limited, and can be in various modes, but the shape of the copper sheet determines that the copper sheet has metal resistance, namely, the RFID tag has better sensitivity on the metal surface than the RFID tag not tested on the metal surface.
Furthermore, a special antenna design simulation software is utilized to model a model of an application scheme, main parameters such as dielectric constants, sizes and the like of various components of the cable joint are substituted into the software, a model which is almost the same as a real object diagram is designed, then the RFID tag antenna is designed according to the model, and the optimal impedance matching of the RFID tag antenna near 915MHz is simulated.
Further, as can be seen from the RFID tag reading distance formula (1), the identification distance r is mainly determined by the gain Gt and the transmission coefficient τ of the tag antenna under the condition that Pt and Gr are constant. The impedance matching between the RFID tag antenna and the RFID tag chip directly affects the transmission coefficient τ. The transmission coefficient of the antenna is improved by matching the width and the circumference of the copper bar radiation part with the impedance of the RFID label chip connected to the feed part, so that the identification distance of the RFID label antenna is improved.
Furthermore, the thickness of the substrate can be increased to enable the energy reflected by the reflection part and the energy reflected by the radiation part to be further superposed at a remote position to improve the gain of the antenna so as to obtain a longer identification distance.
Wherein Pt is the minimum touch threshold work of the RFID label chip;
gr is a gain parameter related to the card reader;
according to a further arrangement of the present invention, the connecting member 2 includes an upper mounting frame 202, a lower mounting frame 207, and a conductive portion, the conductive portion is mounted between the upper mounting frame 202 and the lower mounting frame 207, and the temperature measurement tag 206 is attached to the conductive portion. A fixing cavity is arranged on the upper mounting frame 202 corresponding to the temperature measuring label 206. Fixing grooves are respectively arranged in the upper mounting frame 202 and the lower mounting frame 207 corresponding to the conductive parts. A fixing clip 209 is fixed inside the lower mounting bracket 207, and the conductive portion is clamped to the fixing clip 209. The lower side of the upper mounting frame 202 is provided with a buckle 203, and the upper side of the lower mounting frame 202 is provided with a clamping plate 208 corresponding to the buckle 203. The conductive part comprises a right connecting part 205 and a left connecting part 204, and the thermometric tag 206 is arranged on the right connecting part 205.
In the technical scheme, the mounting structure is simple, the technology is reasonable, and the cost is low.
It will be appreciated that the upper and lower mounts are made of an insulating material.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments, including the components, without departing from the principles and spirit of the invention, and still fall within the scope of the invention.
Claims (8)
1. The plug-pull piece with the temperature measuring function comprises a shell and a connecting piece arranged in the shell, and is characterized in that a temperature measuring label matched with the connecting piece is arranged on the connecting piece.
2. The plug-in component with temperature measurement function according to claim 1, wherein the temperature measurement tag is an RFID temperature measurement tag.
3. The plug-pull piece with temperature measurement function according to claim 1, wherein the connecting piece comprises an upper mounting frame, a lower mounting frame and a conductive portion, the conductive portion is mounted between the upper mounting frame and the lower mounting frame, and the temperature measurement chip is attached to the conductive portion.
4. The pluggable unit with temperature measurement function according to claim 3, wherein the upper mounting frame is provided with a fixing cavity corresponding to the temperature measurement tag.
5. The plug-in unit with temperature measuring function according to claim 2, wherein fixing grooves are respectively formed in the upper mounting frame and the lower mounting frame corresponding to the conductive portions.
6. The pluggable unit with temperature measurement function according to claim 5, wherein a fixing clip is fixed in the lower mounting frame, and the conductive portion is clamped to the fixing clip.
7. The pluggable member with temperature measurement function according to claim 3, wherein a buckle is provided on a lower side of the upper mounting frame, and a clamping plate is provided on an upper side of the lower mounting frame corresponding to the buckle.
8. The plug with temperature measurement function according to claim 3, wherein the conductive portion includes a right connecting portion and a left connecting portion, and the temperature measurement tag is disposed on the right connecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092551.4A CN110718817A (en) | 2019-11-11 | 2019-11-11 | Plug-pull piece with temperature measurement function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092551.4A CN110718817A (en) | 2019-11-11 | 2019-11-11 | Plug-pull piece with temperature measurement function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110718817A true CN110718817A (en) | 2020-01-21 |
Family
ID=69215834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911092551.4A Pending CN110718817A (en) | 2019-11-11 | 2019-11-11 | Plug-pull piece with temperature measurement function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110718817A (en) |
-
2019
- 2019-11-11 CN CN201911092551.4A patent/CN110718817A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20200121 Assignee: ABB (China) Co.,Ltd. Assignor: ZHEJIANG JOHAR TECHNOLOGY Co.,Ltd. Contract record no.: X2020990000589 Denomination of invention: A plug-in device with temperature measurement function License type: Common License Record date: 20201110 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |