CN202758380U

CN202758380U - Radio frequency label located in special-purpose ear tag for breeding sows

Info

Publication number: CN202758380U
Application number: CN 201220374357
Authority: CN
Inventors: 常志刚; 黄善琦; 马林
Original assignee: Tianjin Science And Technology Ltd Of Igrs
Current assignee: Tianjin Science And Technology Ltd Of Igrs
Priority date: 2012-07-31
Filing date: 2012-07-31
Publication date: 2013-02-27
Anticipated expiration: 2022-07-31

Abstract

The utility model relates to a radio frequency label located in a special-purpose ear tag for breeding sows, comprising a circuit chip and an antenna in connection with the circuit chip. The antenna comprises a rectangular coil enclosed by metal foil with a line width of 0.8mm to 1 mm; an intermediate part of a short edge of the rectangular coil is provided with a projection towards the inner of the rectangular coil; the intermediate part of the projection is provided with a coil breaking point, two ends of which are in connection with the circuit chip; an intermediate part of another short edge of the rectangular coil is in connection with two metal foil lines with a length of no less than 90 mm and symmetrically arranged on two sides of the rectangular coil through metal foil with a line width of 1.5 mm to 2 mm. The radio frequency label utilizes a folding antenna design and realizes a best receiving and emitting distance under the condition that an area of a special-purpose ear tag for breeding sows is smaller; a read-write distance can be 80 cm, which can minimize influence of environments to antenna performances.

Description

A kind of radio frequency label that is built in the special-purpose ear tag of the numerous sow of energy

Technical field

The utility model relates to a kind of radio frequency label that is built in the special-purpose ear tag of the numerous sow of energy, has improved recognition stability by the design that changes antenna, and distinguishing distance can reach more than the 80CM.

Background technology

At society, the application demand of radio frequency label is outstanding all the more, and its application development extends to the application of agricultural industry, particularly breeding stock and dairy stock cultivation unit always.Less radio-frequency is increasingly mature in the application of other industry at present, but because the agricultural industry working environment is comparatively complicated and simple and crude, the physique of livestock live body is to the work influence of less radio-frequency, and the shape and size of ear tag are national standards simultaneously; Therefore, so that currently marketed most radio frequency label is not fully up to expectations at the effect of agricultural industry, and can't mate the livestock tag that state compulsion uses fully, even by force common radio frequency label is put into livestock tag, practical application effect can't reach the groundwork demand at all, the form of performance is that recognition stability and recognition distance are low, can not satisfy job requirement.

Summary of the invention

The purpose of this utility model is to propose a kind of wireless RF label technique scheme that is built in the special-purpose ear tag of the numerous sow of energy, has improved recognition stability by the design that changes antenna, and distinguishing distance can reach more than the 80CM.

To achieve these goals, the technical solution of the utility model is: a kind of radio frequency label that is built in the special-purpose ear tag of the numerous sow of energy, comprise circuit chip and the antenna that is connected with circuit chip, wherein, described antenna comprises that one is the square coil that 0.8mm to 1mm metal forming surrounds by live width, projection in the square coil is arranged in the middle of minor face of square coil, be provided with the coil breakpoint in the middle of the lug boss, the two ends connecting circuit chip of breakpoint, the metal forming by 1.5mm to 2mm live width in the middle of another minor face of described square coil connect two and are symmetrical arranged respectively the tinsel cord that length is not less than 90mm in the square coil both sides.

The internal diameter of described square coil is wide to be 7mm to 7.5mm, and length is 11mm to 11.5mm.

Tinsel cord anterior live width in described square coil both sides is less than 0.5mm, and be a plurality of 90 degree right angles and come and go crooked the setting, the afterbody live width of tinsel cord is greater than at least 4 times of anterior live widths, its end points comes and goes the crooked tinsel cord downside that arranges at a plurality of 90 degree right angles and is oppositely arranged, and the minimum spacing of described round line and line is not more than 0.2mm.

The beneficial effects of the utility model are: utilize the folded antenna design, than under the small size, realize best reception and transmitting range at the special-purpose ear tag of the numerous sow of energy, its reading/writing distance can be accomplished〉80cm; According to the feature of the special-purpose ear tag body of the numerous sow of energy, the loop antenna that particular design is special, and load blocks are so that environment minimizing the antenna performance impact.

Below in conjunction with drawings and Examples the utility model being done one describes in detail.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model antenna structure view.

Embodiment

A kind of radio frequency label that is built in the special-purpose ear tag of the numerous sow of energy, referring to Fig. 1 and Fig. 2, a numerous sow ear tag body 1 of spade energy is arranged, in the ear tag body, be provided with radio frequency label 2, described radio frequency label comprises circuit chip 2-1 and the antenna 2-2 that is connected with circuit chip, antenna is attached to (for example on the glass fabric of epoxy resin plate) on the film substrate by the method for circuit board etching, and circuit chip is by on the mount technology welding antenna.Be coated with the PET film at circuit chip and antenna, the surface attachment of the non-antenna surface of described film substrate has glue, be fixed in numerous sow ear tag body with the film substrate of circuit chip and the antenna mode by injection moulding, wherein, described antenna comprises that one is the square coil 2-2-1 that 0.8mm to 1mm metal forming surrounds by live width, protruding 2-2-2 in the square coil is arranged in the middle of minor face of square coil, be provided with the coil breakpoint in the middle of the lug boss, the two ends connecting circuit chip of breakpoint, the metal forming by 1.5mm to 2mm live width in the middle of another minor face of described square coil connect two and are symmetrical arranged respectively the tinsel cord that length is not less than 90mm in the square coil both sides.

Tinsel cords anterior live width in described square coil both sides is less than 0.5mm, and is a plurality of 90 degree right angles and comes and goes crooked 2-2-3 and arrange, and the afterbody live width of tinsel cord is greater than at least 4 times of anterior live widths, and the present embodiment is 5 times; Its end points 2-2-4 comes and goes the crooked tinsel cord downside that arranges at a plurality of 90 degree right angles and is oppositely arranged, and the minimum spacing 3 of described round line and line is not more than 0.2mm, and the present embodiment is 0.18mm.

The present embodiment utilizes the folded antenna design, and the proportion responding range is the ultrahigh frequency radio frequency chip of 920～925MHz, by special Antenna Design, makes the response frequency of label obtain a certain amount of frequency compensation.When recognizer was launched the electromagnetic wave of 920～925MHz, the label respective tones was named a person for a particular job above this numerical value, although the response frequency consumes a part like the compositions such as water in the animal body, still can return out the electromagnetic wave of 920～925MHz.Because above-mentioned design, after label is worn on the animal body, still can guarantee that the optimal response frequency drops in 920～925MHz standard bands, be identified at the performance reduction that causes because being interfered behind the animal body even the situation about losing efficacy of being worn on thereby solve common UHF electronic.

The present embodiment than under the small size, is realized best reception and transmitting range at the special-purpose ear tag of the numerous sow of energy, and its reading/writing distance can be accomplished〉80cm; According to the feature of the special-purpose ear tag body of the numerous sow of energy, the loop antenna that particular design is special, and load blocks are so that environment minimizing the antenna performance impact.

Claims

One kind be built in can be numerous the radio frequency label of the special-purpose ear tag of sow, comprise circuit chip and the antenna that is connected with circuit chip, it is characterized in that, described antenna comprises that one is the square coil that 0.8mm to 1mm metal forming surrounds by live width, projection in the square coil is arranged in the middle of minor face of square coil, be provided with the coil breakpoint in the middle of the lug boss, the two ends connecting circuit chip of breakpoint, the metal forming by 1.5mm to 2mm live width in the middle of another minor face of described square coil connect two and are symmetrical arranged respectively the tinsel cord that length is not less than 90mm in the square coil both sides.
2. a kind of radio frequency label that is built in the special-purpose ear tag of the numerous sow of energy according to claim 1 is characterized in that, the internal diameter of described square coil is wide to be 7mm to 7.5mm, and length is 11mm to 11.5mm.
According to claim 1 a kind of be built in can be numerous the radio frequency label of the special-purpose ear tag of sow, it is characterized in that, tinsel cord anterior live width in described square coil both sides is less than 0.5mm, and be a plurality of 90 degree right angles and come and go crooked the setting, the afterbody live width of tinsel cord is greater than at least 4 times of anterior live widths, its end points comes and goes the crooked tinsel cord downside that arranges at a plurality of 90 degree right angles and is oppositely arranged, and the minimum spacing of described round line and line is not more than 0.2mm.