CN206585057U - Insulation plug with RFID tag - Google Patents
Insulation plug with RFID tag Download PDFInfo
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- CN206585057U CN206585057U CN201720253678.XU CN201720253678U CN206585057U CN 206585057 U CN206585057 U CN 206585057U CN 201720253678 U CN201720253678 U CN 201720253678U CN 206585057 U CN206585057 U CN 206585057U
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- irradiation unit
- reflecting part
- rfid tag
- insulation plug
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Abstract
The utility model provides a kind of insulation plug with RFID tag, and the insulation plug includes body and RFID tag.Body includes conducting rod.RFID tag includes label antenna and the label chip being connected on label antenna current feed department.Label antenna includes substrate and antenna structure.There is mounting hole, conducting rod, which is worn, to be penetrated mounting hole and mutually fixed with mounting hole on substrate.Antenna structure is arranged at substrate, and antenna structure includes irradiation unit, reflecting part and connecting portion.Irradiation unit, which is formed on one end of substrate, irradiation unit, has current feed department.Reflecting part is formed at the other end of substrate and in closed, and the energy that reflecting part is radiated to irradiation unit reflects.Connecting portion is arranged at substrate and is electrically connected with irradiation unit and reflecting part.
Description
Technical field
The utility model is related to technical field of RFID, and more particularly to a kind of insulation plug with RFID tag.
Background technology
At present, passive UHF RFID techniques have been widely used in every profession and trade.And RFID technique combination sensor technology institute
The passive UHF RFID sensing chips of exploitation, are allowed to have more extensive application in the industrial trade such as electric power field.
In electric force looped network cabinet, often the key node in more than 10KV, cable is frequently accompanied by high temperature exothermic phenomenon to operating voltage, and these
Node is often the important hidden danger point of electric power accident, therefore RFID tag of the application with temp sensing function can enter to key node
Row monitoring in real time, so that the generation prevented accident, substantially reduces the incidence of accident.
Key node in electric power cabinet is frequently located at T-shaped cable connector, and T-shaped cable connector is used for the master of cable distribution box
Net system or the turnover wire terminal as ring main unit, can both connect more than 600A bushings, multi-joint plate connector, also can be with
600A bus casings, rear T-shaped cable connector combination connection, formation multiway cable branch, T-shaped cable connector are inserted with after before typically dividing
Insert, effect of the collocation insulation plug to realize insulation, seal and shunt.T-shaped cable connector generally comprises conducting rod, bolt, put down
The various metals structures such as pad, spring washer, nut, insulation plug (containing the metal parts such as pad in inside) and crimp type terminal, and metal
Structure has reflex to the energy of antenna, adds class cylinder product space narrow and small in T-shaped cable connector, therefore, existing
Some temperature measuring labels are difficult to be placed in one or are difficult to read and use, so existing insulation plug is difficult to realize to T-shaped cable
The temperature monitoring of joint inside joint.
Utility model content
The utility model in order to overcome it is existing insulation plug can not realize the temperature monitoring at T-shaped cable connector the problem of,
A kind of insulation plug with RFID tag is provided.
To achieve these goals, the utility model provides a kind of insulation plug with RFID tag, the insulation plug
Including body and RFID tag.Body includes conducting rod.RFID tag includes label antenna and is connected to label antenna current feed department
On label chip.Label antenna includes substrate and antenna structure.On substrate have mounting hole, conducting rod wear penetrate mounting hole and with
Mounting hole is mutually fixed.Antenna structure is arranged at substrate, and antenna structure includes irradiation unit, reflecting part and connecting portion.Irradiation unit is formed
In on one end of substrate, irradiation unit have current feed department.Reflecting part is formed at the other end of substrate and in closed, and reflecting part is to spoke
The energy for penetrating portion's radiation is reflected.Connecting portion is arranged at substrate and is electrically connected with irradiation unit and reflecting part.
In the embodiment of the utility model one, irradiation unit is in annular shape, and current feed department is to extend radially through irradiation unit along annulus
Feed groove.
In the embodiment of the utility model one, reflecting part is in annular shape, and the annular width of reflecting part is more than the circle of irradiation unit
Ring width.
In the embodiment of the utility model one, the annular width and girth of irradiation unit and reflecting part are with being connected to current feed department
On label chip matches impedances.
In the embodiment of the utility model one, there is at least one cable-through hole on substrate, connecting portion passes through at least one mistake
String holes is electrically connected with irradiation unit and reflecting part.
In the embodiment of the utility model one, connecting portion is the metal for being arranged on substrate-side wall and extending to substrate two ends
Band, metal tape is electrically connected with irradiation unit and reflecting part.
In the embodiment of the utility model one, substrate is cylindrical, and the center of substrate has axially penetrates through base along substrate
The mounting hole of plate, the external diameter of substrate is more than or equal to the Breadth Maximum of reflecting part.
In the embodiment of the utility model one, irradiation unit and reflecting part are printed in substrate, and the material of irradiation unit and reflecting part
Matter is respectively metal or electrical conductivity alloy, and substrate is any in FR-4 epoxy glass fibers plate, plastic plate, ceramic wafer or cystosepiment
Kind.
In summary, the insulation plug with RFID tag that the utility model is provided passes through on the substrate of label antenna
The mounting hole corresponding with conducting rod is set, and RFID tag is fixed on by mounting hole in the body of insulation plug.Work as setting
When label chip on RFID tag is the chip with temp sensing function, exterior read-write equipment can be real by reading RFID tag
Now insulation plug in temperature monitoring.In addition on label antenna, irradiation unit and reflection are formed respectively by the two ends in substrate
Portion simultaneously sets reflecting part to be in closed, is overlapped to improve the increasing of antenna after the reflected portion's reflection of energy of irradiation unit radiation
Benefit, increases substantially the identification distance of label antenna.And (such as nut is fixed when RFID label antenna is attached to metal objects
Part) when, the influence of the metal parts of the maskable reflecting part side of reflecting part further improves identification distance, reaches anti-metal
Effect.
Further, width and girth that irradiation unit and reflecting part are set and the label chip being connected on current feed department are passed through
Matches impedances improve the transmission coefficient of antenna, so as to improve the identification distance of label antenna.Further, it can also pass through
Increase the thickness of substrate the energy after reflected portion's reflection is further superimposed with the energy that irradiation unit reflects remotely
To improve the gain of antenna, to obtain farther identification distance.By setting mounting hole on substrate, it can make inside insulation plug
Conducting rod be fixedly connected through the mounting hole with label so that solve label insulation plug in installation question, and mark
Sign antenna structure simple, be particularly suitable for producing in enormous quantities.
For above and other objects, features and advantages of the present utility model can be become apparent, preferable reality cited below particularly
Example is applied, and coordinates accompanying drawing, is described in detail below.
Brief description of the drawings
Fig. 1 show the structural representation of the insulation plug with RFID tag of the embodiment of the utility model one offer.
Fig. 2 show the top view of label antenna in Fig. 1.
Fig. 3 show the upward view of label antenna in Fig. 1.
Fig. 4 show the sectional view of label antenna in Fig. 1.
Fig. 5 show the top view of the RFID tag of the embodiment of the utility model one offer.
Fig. 6 is shown in the label antenna shown in Fig. 2, and metallic vias is located under different angles, and antenna impedance real part is with frequency
The change curve of rate.
Fig. 7 is shown in the label antenna shown in Fig. 2, and metallic vias is located under different angles, and antenna impedance imaginary part is with frequency
The change curve of rate.
Fig. 8 is shown in the RFID tag shown in Fig. 5, and metallic vias is located at the gain direction under the conditions of angle an=70 degree
Figure.
Embodiment
As shown in Figures 1 to 5, the insulation plug with RFID tag that the present embodiment is provided includes body 100 and RFID
Label 200.Body 100 includes conducting rod 101 and fixture 102.RFID tag 200 includes label antenna 201 and is connected to mark
Sign the label chip 202 on the current feed department of antenna 201.Label antenna 201 includes substrate 10 and antenna structure 20.Have on substrate 10
Mounting hole, conducting rod 101, which is worn, to be penetrated mounting hole and is mutually fixed with mounting hole.Antenna structure 20 is arranged at substrate 10, antenna structure 20
Including irradiation unit 1, reflecting part 2 and connecting portion 3.Irradiation unit 1, which is formed on one end of substrate 10, irradiation unit 1, has current feed department 11.
Reflecting part 2 is formed at the other end of substrate 10 and in closed, and the energy that reflecting part 2 is radiated to irradiation unit 1 reflects.Connection
Portion 3 is arranged at substrate 10 and is electrically connected with irradiation unit 1 and reflecting part 2.
In the present embodiment, fixture 102 is located at the lower section of reflecting part 2 in label antenna 201, and fixture 102, which is fixed, to be connected
Connect RFID tag 200 and conducting rod 101.In the present embodiment, fixture 102 is nut.However, the utility model is not made to this
It is any to limit.
In the present embodiment, label chip 202 is connected by way of binding on current feed department 11.However, the utility model
This is not limited in any way.In other embodiments, label chip 202 can be connected on current feed department 11 by way of welding.
The insulation plug with RFID tag that the present embodiment is provided in insulation plug body 100 by setting RFID to mark
Label 200 simultaneously set label chip 201 to have temp sensing function, and exterior read-write equipment can be achieved absolutely by reading RFID tag 200
The monitoring of edge plug internal temperature.This is only a kind of application mode of the insulation plug with RFID tag.The utility model
This is not limited in any way.In other embodiments, different functions can be realized by using the label chip of difference in functionality,
Such as the monitoring of insulation plug interior humidity can be realized when using the label chip with humidity detection.
In label antenna, the reflecting part 2 of closed can both be reflected the energy that irradiation unit 1 is launched, the energy of reflection
Amount is superimposed so as to increasing the emittance of irradiation unit 1 with the energy that irradiation unit 1 is radiated, and greatly improves the gain of label antenna,
Make its even if in applied metal environment (as the fixtures such as nut in the environment) can also have larger identification distance；Together
When, also influence of the maskable metal positioned at the side of reflecting part 2 to the gain of irradiation unit 1 of reflecting part 2 reaches the effect of anti-metal
Really.
In the present embodiment, irradiation unit 1 and reflecting part 2 are in annular shape, and the setting causes irradiation unit 1 and the table of reflecting part 2
Existing electric current is annularly distributed, can partly shielding effect pass through metallic conductor influence, make label antenna more have anti-metal
Performance.Further, the annular width of reflecting part 2 is set to be more than the annular width of irradiation unit 1.The setting enables reflecting part 2
The energy that a large amount of reflected radiation portions 1 launch, so as to greatly improve the gain of antenna.It is preferred that, the external diameter of irradiation unit 1 is 13 millis
Rice, internal diameter is 11 millimeters, and the annular width of irradiation unit 1 is 2 millimeters.The external diameter of reflecting part 2 is 13 millimeters, and internal diameter is 6 millimeters, instead
The annular width for penetrating portion 2 is 7 millimeters.However, the utility model is not limited in any way to this.The He of irradiation unit 1 in actual use
The width and girth of reflecting part 2 can influence the impedance of antenna structure 20, to realize the impedance matching of antenna impedance and label chip, need
Design is optimized to the width and girth of irradiation unit 1 and reflecting part 2.Specifically, if label chip is in working frequency
Have re-j*im's (input impedance of antenna is a plural number, and re is real part, and im is imaginary part, and j is imaginary unit) defeated during 915MHz
Enter impedance, therefore when designing the width and girth of irradiation unit 1 and reflecting part 2, the impedance of antenna structure 20 should be made as far as possible
Close to re+j*im.Impedance matching can greatly reduce loss of the signal energy in transmitting procedure, increase substantially the reading of signal
Distance.
The gain of label antenna can be further improved in other embodiments by changing the thickness of substrate 10.It is specific and
Speech, the ripple that irradiation unit 1 is launched as thickness d=0.25 λ of substrate 10 is remotely being superimposed with the ripple that reflecting part 2 reflects, further
The identification distance of label is improved, λ is the medium wavelength that the ripple that irradiation unit 1 is launched is transmitted in substrate media.
For matching irradiation unit and reflecting part and with more preferable supporting role, in the present embodiment, substrate 10 is set in circle
Column, the center of substrate 10 has along its axially arranged mounting hole, and sets the external diameter of substrate 10 to be more than or equal to reflecting part 2
Breadth Maximum.
In the present embodiment, current feed department 11 is the feed groove for extending radially through irradiation unit 1 along annulus.It is preferred that, feedback is set
The concrete structure of electric groove is rectangle, and the length of rectangle feed groove is 2 millimeters, for convenience of welding label chip, sets rectangle to feed
The width of groove is slightly larger than the Breadth Maximum of label chip, in the present embodiment, and the width of rectangle feed groove is also 2 millimeters.However,
The utility model is not limited in any way to this.In other embodiments, the shape of current feed department can be other shapes with label chip
Feed groove or feed mouth that shape matches, corresponding size can also be designed according to the size of label chip.
In the present embodiment, there is at least one cable-through hole for axially penetrating through substrate along substrate, Yu Benshi on substrate 10
Apply in example, there is a cable-through hole on substrate 10.However, the utility model is not limited in any way to this.Connecting portion 3 is by crossing line
Hole electrically connects irradiation unit 1 and reflecting part 2.In the present embodiment, irradiation unit 1 and reflecting part 2 are printed on substrate 10, therefore are set
Cable-through hole is metal cable-through hole.However, the utility model is not limited in any way to this.In other embodiments, connecting portion is to set
The metal tape at substrate two ends is placed on substrate-side wall and extends to, metal tape is electrically connected with irradiation unit and reflecting part.
In the present embodiment, the radius of metal cable-through hole is 0.5 millimeter.However, the utility model does not make any limit to this
It is fixed.Because connecting portion 3 belongs to a part for antenna structure 20, the impedance of connecting portion 3 is a part for antenna impedance, therefore is entering
The specific connected mode of consideration connecting portion 3 is needed during row designing impedance matching.
Under the conditions of free space, the identification distance between reader and electronic tag is determined by below equation：
In Pth(minimum of RFID chip touches threshold power) and the certain bars of EIRP (gain parameter relevant with card reader)
Under part, recognize apart from the main gain Gs by label antenna of RtagDetermined with transmission coefficient τ.In Pth(minimum of RFID chip touches threshold
Be worth power) and EIRP (gain parameter relevant with card reader) it is certain under conditions of, recognize apart from R mainly by the increasing of label antenna
Beneficial GtagDetermined with transmission coefficient τ.Impedance matching between label antenna 201 and label chip 202 directly affects transmission coefficient
τ。
In the RFID tag that the present embodiment is provided, the position of metal cable-through hole directly affects the resistance of label antenna 201
It is anti-.The line on the basis of the center line of label chip radially, crosses the straight line in the center of circle of metal cable-through hole and the center of circle of substrate
Angle between datum line is angle an of the metal cable-through hole on substrate.As shown in fig. 6, when metallic vias is located at angle an
Under the conditions of=50,60,70, the real part re (Z (1,1)) of label antenna impedance is with the change curve of frequency.It can be obtained from figure
At 915Mhz the real part of label antenna impedance be respectively 5.5,7.6 and 9.6 ohm, in Fig. 6 corresponding curve be respectively m1, m2 and
m3.As shown in fig. 7, under the conditions of metallic vias is located at angle an=50,60,70, the imaginary part im of label antenna impedance (Z (1,
1)) with the change curve of frequency.It can be obtained from figure, the imaginary part of label antenna impedance is respectively 256.2,197.8 and at 915Mhz
159.3 ohm, corresponding curve is respectively m4, m5 and m6 in Fig. 7.When carrying out impedance matching optimization design, it may be determined that antenna
Irradiation unit 1 in structure 20, the position of reflecting part 2 and metal cable-through hole and select the label with the matches impedances of antenna structure 20
Chip realizes impedance matching.Also can be by adjusting size and the reflection of position or irradiation unit 1 of the metal cable-through hole on substrate
The size in portion 2 matches a certain specific label chip.Relative to the size and the size of reflecting part 2 of irradiation unit 1, metal crosses line
The change of the position in hole is simpler, that is, is easier to make impedance adjustment of the label antenna at 915Mhz frequencies to label chip
Near conjugate impedance, transmission coefficient is greatly improved, so as to greatly improve identification distance.
As shown in figure 8, when metal cable-through hole angle an=70 and during with 202 impedance matching of label chip, RFID tag
Reachable-the 3.3924dBi of maximum gain, considerably beyond existing most Miniaturization anti-metal labels.
In the present embodiment, antenna structure 20 is made up of copper product.However, the utility model is not limited in any way to this.
In other embodiments, antenna structure 20 can be made up of metal materials such as gold, silver, aluminium or the electrical conductivity alloy such as scolding tin is made.Yu Ben
In embodiment, substrate 10 is FR-4 epoxy glass fiber plates.However, the utility model is not limited in any way to this.In other realities
Apply in example, substrate 10 can be plastic plate, ceramic wafer or cystosepiment.
In summary, the insulation plug with RFID tag that the utility model is provided passes through on the substrate of label antenna
The mounting hole corresponding with conducting rod is set, and RFID tag is fixed on by mounting hole in the body of insulation plug.Work as setting
When label chip on RFID tag is the chip with temp sensing function, exterior read-write equipment can be real by reading RFID tag
Now insulation plug in temperature monitoring.In addition on label antenna, irradiation unit and reflection are formed respectively by the two ends in substrate
Portion simultaneously sets reflecting part to be in closed, is overlapped to improve the increasing of antenna after the reflected portion's reflection of energy of irradiation unit radiation
Benefit, increases substantially the identification distance of label antenna.And (such as nut is fixed when RFID label antenna is attached to metal objects
Part) when, the influence of the metal parts of the maskable reflecting part side of reflecting part further improves identification distance, reaches anti-metal
Effect.
In addition, passing through the resistance of the width and girth that set irradiation unit and reflecting part and the label chip being connected on current feed department
It is anti-to match to improve the transmission coefficient of antenna, so as to improve the identification distance of label antenna.Further, increase can also be passed through
The thickness of substrate come enable reflected portion reflect after the energy and irradiation unit energy that reflect carried in remotely further be superimposed
The gain of high antenna, to obtain farther identification distance.By setting mounting hole on substrate, leading inside insulation plug can be made
Electric pole is fixedly connected through the mounting hole with label, so as to solve installation question of the label in insulation plug, label antenna
It is simple in construction, it is particularly suitable for producing in enormous quantities.
Although the utility model is disclosed above by preferred embodiment, but the utility model is not limited to, it is any
Know this those skilled in the art, do not departing from spirit and scope of the present utility model, a little change and retouching, therefore this practicality can be made
New protection domain is worked as to be defined depending on claims scope claimed.
Claims (8)
1. a kind of insulation plug with RFID tag, it is characterised in that including：
Body, including conducting rod；
RFID tag, including label antenna and the label chip being connected on label antenna current feed department, the label antenna include：
Substrate, with mounting hole, the conducting rod, which is worn, to be penetrated the mounting hole and is mutually fixed with mounting hole；
Antenna structure, is arranged at the substrate, and the antenna structure includes：
Irradiation unit, being formed on one end of the substrate, the irradiation unit has current feed department；
Reflecting part, is formed at the other end of the substrate and in closed, the energy that the reflecting part is radiated to the irradiation unit
Reflected；
Connecting portion, is arranged at the substrate and is electrically connected with irradiation unit and reflecting part.
2. the insulation plug according to claim 1 with RFID tag, it is characterised in that the irradiation unit is in annulus
Shape, the current feed department is the feed groove for extending radially through irradiation unit along annulus.
3. the insulation plug according to claim 1 with RFID tag, it is characterised in that the reflecting part is in annulus
Shape, the annular width of the reflecting part is more than the annular width of irradiation unit.
4. the insulation plug according to claim 1 with RFID tag, it is characterised in that the irradiation unit and reflecting part
Annular width and girth and the matches impedances of label chip that are connected on current feed department.
5. the insulation plug according to claim 1 with RFID tag, it is characterised in that have at least on the substrate
One cable-through hole, the connecting portion is electrically connected with the irradiation unit and reflecting part through at least one cable-through hole.
6. the insulation plug according to claim 1 with RFID tag, it is characterised in that the connecting portion is to be arranged at
On the substrate-side wall and the metal tape at substrate two ends is extended to, metal tape is electrically connected with the irradiation unit and reflecting part.
7. the insulation plug according to claim 1 with RFID tag, it is characterised in that the substrate is cylindrical,
The center of the substrate has the mounting hole for axially penetrating through substrate along substrate, and the external diameter of the substrate is more than or equal to reflecting part
Breadth Maximum.
8. the insulation plug according to claim 1 with RFID tag, it is characterised in that the irradiation unit and reflecting part
The substrate is printed in, and the material of the irradiation unit and reflecting part is respectively metal or electrical conductivity alloy, substrate is FR-4 epoxies
Any of glass mat, plastic plate, ceramic wafer or cystosepiment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720253678.XU CN206585057U (en) | 2017-03-15 | 2017-03-15 | Insulation plug with RFID tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720253678.XU CN206585057U (en) | 2017-03-15 | 2017-03-15 | Insulation plug with RFID tag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206585057U true CN206585057U (en) | 2017-10-24 |
Family
ID=60113492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720253678.XU Active CN206585057U (en) | 2017-03-15 | 2017-03-15 | Insulation plug with RFID tag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206585057U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876866A (en) * | 2017-03-15 | 2017-06-20 | 杭州泽济电子科技有限公司 | Insulation plug with RFID label tag |
| CN107817057A (en) * | 2017-11-30 | 2018-03-20 | 杭州泽济电子科技有限公司 | Fastening assembly with miniaturized electronic label |
-
2017
- 2017-03-15 CN CN201720253678.XU patent/CN206585057U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876866A (en) * | 2017-03-15 | 2017-06-20 | 杭州泽济电子科技有限公司 | Insulation plug with RFID label tag |
| CN106876866B (en) * | 2017-03-15 | 2023-09-29 | 浙江悦和科技有限公司 | Insulating plug with RFID tag |
| CN107817057A (en) * | 2017-11-30 | 2018-03-20 | 杭州泽济电子科技有限公司 | Fastening assembly with miniaturized electronic label |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220314 Address after: Room 506, building 12, 1818-2, Wenyi West Road, Yuhang street, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: ZHEJIANG JOHAR TECHNOLOGY CO.,LTD. Address before: 311100 room 569, building 3, No. 1, Lvting Road, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Zeji Electronic Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |