CN202167042U - RFID reader structure - Google Patents
RFID reader structure Download PDFInfo
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- CN202167042U CN202167042U CN2011202538805U CN201120253880U CN202167042U CN 202167042 U CN202167042 U CN 202167042U CN 2011202538805 U CN2011202538805 U CN 2011202538805U CN 201120253880 U CN201120253880 U CN 201120253880U CN 202167042 U CN202167042 U CN 202167042U
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- cavity
- rfid reader
- main circuit
- circuit system
- write line
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Abstract
He utility model discloses an RFID reader structure, including a reader-writer main circuit system, a first installation cavity for arranging the reader-writer main circuit system, an antenna radiation system connected with the reader-writer main circuit system and a second cavity for arranging the antenna radiation system and being fixed with the first cavity together. The RFID reader structure also includes an electromagnetic shielding plate for isolating the reader-writer main circuit system and the antenna radiation system. In the utility model, through the arrangement of the electromagnetic shielding plate between the reader-writer main circuit system and the antenna radiation system, the RFID reader structure is divided to two portions, and the electromagnetic field isolation of the reader-writer main circuit system and the antenna radiation system can restrict the mutual interference therebetween to the largest degree.
Description
Technical field
The relevant a kind of reader structure of the utility model relates in particular to a kind of round-the-clock RFID reader structure.
Background technology
REID (Radio Frequency Identification) is a kind of noncontact tag information discriminating technology; Rfid system is made up of Circuits System, electronic tag and antenna system; RFID reader structure is to utilize wireless radio frequency mode to carry out the noncontact bidirectional data communication, to reach the purpose of recognition objective electronic tag.In the ultrahigh frequency RFID reader structure of the prior art shielding element is not set, the electromagnetic field of antenna system is easily with producing the phase mutual interference between the Circuits System like this.
Therefore, to above-mentioned technical matters, be necessary to provide a kind of structure improved RFID reader structure that has, to overcome above-mentioned defective.
The utility model content
In view of this, the utility model provides a kind of RFID reader structure, has good Electromagnetic Compatibility.
For realizing above-mentioned purpose, the utility model provides following technical scheme:
A kind of RFID reader structure; It comprises the read write line main circuit system, in order to first of read write line main circuit system to be installed cavity, the aerial radiation system that is connected with the read write line main circuit system and second cavity in order to fix up an aerial wire radiating system and to be fixed together with first cavity is installed, and said RFID reader structure also comprises the barricade of isolating read write line main circuit system and aerial radiation system.
Preferably, in above-mentioned RFID reader structure, be connected through cable between said aerial radiation system and the read write line main circuit system, said barricade is provided with and supplies said cable to pass to connect the perforation of read write line main circuit system and aerial radiation system.
Preferably; In above-mentioned RFID reader structure; Said first cavity comprises first body, vertically extend first body first wall extension and by first body and first wall extension surround in order to accommodate first receiving space of read write line main circuit system; Said first cavity also comprises first installation portion that protrudes in first receiving space, and said read write line main circuit system is installed on first installation portion.
Preferably; In above-mentioned RFID reader structure; Said first cavity also comprises second installation portion that protrudes in first receiving space and be positioned at the first installation portion side, and said barricade is installed on second installation portion, and said read write line main circuit system is between first body and barricade.
Preferably, in above-mentioned RFID reader structure, said barricade is provided with around the outside lateral wall in one week, and said lateral wall contacts with the inwall of first wall extension.
Preferably; In above-mentioned RFID reader structure; Said second cavity comprises second body, vertically extends second wall extension of second body and second receiving space that is surrounded by second body and second wall extension; Said second cavity also comprise protrude in second receiving space the 3rd installation portion, said aerial radiation system is installed on the 3rd installation portion.
Preferably, in above-mentioned RFID reader structure, said second body is provided with the radiation window of perforation, and the electrode of said aerial radiation system is over against this radiation window.
Preferably, in above-mentioned RFID reader structure, be provided with the waterproof plastic plate between said radiation window and the aerial radiation system.
Preferably, in above-mentioned RFID reader structure, be provided with the polytetrafluoroethylene sealing gasket circle between said first cavity and second cavity.
Preferably, in above-mentioned RFID reader structure, said read write line main circuit system is separately fixed at first with the aerial radiation system through screw and installs on the cavity and the second installation cavity.
Can find out from technique scheme; The RFID reader structure of the utility model embodiment is through being provided with barricade between read write line main circuit system and aerial radiation system; This design is divided into two RFID reader structure; The electromagnetic field of read write line main circuit system and aerial radiation system isolated, retrained the mutual interference mutually between read write line main circuit system and the aerial radiation system to greatest extent.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of first cavity of the utility model embodiment RFID reader structure.
Fig. 2 is the phantom view of first cavity among Fig. 1.
Fig. 3 is the structural representation of second cavity of the utility model embodiment RFID reader structure.
Fig. 4 is the structural representation of the barricade of the utility model embodiment RFID reader structure.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out detailed description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope that the utility model is protected.
The utility model discloses a kind of RFID reader structure, this RFID reader structure has good Electro Magnetic Compatibility.
See also Fig. 1 to shown in Figure 3, said RFID reader structure comprises read write line main circuit system (not shown), first cavity 1 in order to the read write line main circuit system to be installed, aerial radiation system (not shown) and second cavity 2 in order to fix up an aerial wire radiating system and to be fixed together with first cavity 1 that is connected with the read write line main circuit system.Said first cavity 1 and second cavity 2 adopt aluminum alloy materials; And said first cavity 1 and second cavity, 2 simple shape, be easy to processing; Processing technology can be a cutting technology, also can be the extrusion process of mfg. moulding die, and this metal material has certain electromagnetic radiation shield function.
See also shown in Figure 4ly, be connected through cable (not shown) between said aerial radiation system and the read write line main circuit system.Said RFID reader structure also comprises the barricade 3 of isolated antennas radiating system and read write line main circuit system.Said barricade 3 is provided with and supplies said cable to pass to connect the perforation 31 of aerial radiation system and read write line main circuit system.
See also shown in Figure 1; Said first cavity 1 is the rectangular shape of hollow form, said first cavity 1 comprises first body 11, vertically extend first body 11 first wall extension 12 and by first body 11 and first wall extension 12 surround in order to accommodate first receiving space 13 of read write line main circuit system.Said first cavity 1 also comprises some first installation portions 14 that protrude in first receiving space 13, and said read write line main circuit system is installed on first installation portion 14.Said first installation portion 14 protrudes out in first receiving space 13 from the middle position near first body 11; In the utility model embodiment; Said first installation portion 14 comprises four; Said four first installation portions 14 are lined up two corresponding in twos rows of position, and these four first installation portions 14 are secured together from the both sides and the read write line main circuit system of read write line main circuit system respectively.Said first installation portion 14 is provided with first threaded hole 141; The both sides of said read write line main circuit system are provided with and the first corresponding through hole of first threaded hole, 141 positions, and said read write line main circuit system passes first through hole through screw and screws in first threaded hole 141 and be secured together with first installation portion 14.
See also Fig. 1 and shown in Figure 4; Said first cavity 1 also comprises second installation portion 15 that protrudes in first receiving space 13 and be positioned at four first installation portion 14 sides; Said barricade 3 is installed on second installation portion 15, and said read write line main circuit system is between first body 11 and barricade 3.Said second installation portion 15 also comprises four; These four second installation portions 15 are separately positioned on the place at four angles of first cavity 1; Said second installation portion 15 is provided with second threaded hole 151; Said barricade is provided with and second threaded hole, 151 position corresponding second through hole 33, and said barricade 3 passes second through hole 33 through screw and screws in second threaded hole 151 and be fixed together with second installation portion 15.Said barricade 3 is provided with around the outside lateral wall 32 in one week, and after said barricade 3 was installed in first cavity 1, said lateral wall 32 contacted with the inwall of first wall extension 12.So be provided with; Through barricade 3 RFID reader structure is divided into two; The electromagnetic field of read write line main circuit system and aerial radiation system is isolated; And barricade 3 is arranged to contact with the inwall of first cavity 1 to greatest extent, can retrain the mutual interference mutually between read write line main circuit system and the aerial radiation system to greatest extent.
See also shown in Figure 3ly, said second cavity 2 also is the rectangular shape of hollow form.Said second cavity 2 comprises second body 21, vertically extends second wall extension 22 of second body 21 and second receiving space 23 that is surrounded by second body 21 and second wall extension 22.Said second body 21 is provided with the radiation window 25 of perforation, and the electrode of said aerial radiation system is over against this radiation window 25.Said radiation window 25 is quadrilateral structure; Said radiation window 25 comprises first pair of parallel edges and second pair of parallel edges; First pair of parallel edges of said radiation window 25 extends to second wall extension, 22 places, and second pair of parallel edges of said radiation window 25 do not extend to second wall extension, 22 places.
Please continue to consult shown in Figure 3, said second cavity 2 also comprise protrude in second receiving space 23 the 3rd installation portion 24, said aerial radiation system is installed on the 3rd installation portion 24.Said the 3rd installation portion 24 comprises three, and these three the 3rd installation portions 24 are installed in the side of second pair of parallel edges respectively.Said the 3rd installation portion 24 is provided with the 3rd threaded hole 241; Said aerial radiation system is provided with and the corresponding third through-hole in the 3rd threaded hole 241 positions, and said aerial radiation system passes third through-hole through screw and screws in the 3rd threaded hole 241 and be fixed together with the 3rd installation portion 24.Be provided with waterproof plastic plate (not shown) between said radiation window 25 and the aerial radiation system.The RFID reader structure of the utility model embodiment mainly is to utilize second cavity 2 that the aerial radiation system is installed, and radiation window 25 is of a size of 133 * 48.5mm, can effectively arrive the space to the power energy emission of aerial radiation system.
Be provided with teflon rubber gasket (not shown) between said first cavity 1 and second cavity 2; So be provided with, can realize the round-the-clock environmental work of RFID reader structure, this RFID reader structure can be indoor; The field, rugged environments such as chemical gas are work down.
The RFID reader structure of the utility model embodiment is through being provided with barricade 3 between read write line main circuit system and aerial radiation system; This design is divided into two RFID reader structure; The electromagnetic field of read write line main circuit system and aerial radiation system isolated, retrained the mutual interference mutually between read write line main circuit system and the aerial radiation system to greatest extent.
The RFID reader structure of the utility model embodiment is the RFID reader with 2.45GHz ultrahigh frequency; This RFID reader structure has good Electro Magnetic Compatibility; The built-in aerial radiating system has good all weather operations pattern, can be indoor; The field, rugged environments such as chemical gas are work down.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. RFID reader structure; It comprises the read write line main circuit system, in order to install first of read write line main circuit system install cavity, the aerial radiation system that is connected with the read write line main circuit system and in order to fix up an aerial wire radiating system and with second cavity that first cavity is fixed together, it is characterized in that: said RFID reader structure also comprises the barricade of isolation read write line main circuit system and aerial radiation system.
2. RFID reader structure according to claim 1; It is characterized in that: be connected through cable between said aerial radiation system and the read write line main circuit system, said barricade is provided with and supplies said cable to pass to connect the perforation of read write line main circuit system and aerial radiation system.
3. RFID reader structure according to claim 1; It is characterized in that: said first cavity comprises first body, vertically extend first body first wall extension and by first body and first wall extension surround in order to accommodate first receiving space of read write line main circuit system; Said first cavity also comprises first installation portion that protrudes in first receiving space, and said read write line main circuit system is installed on first installation portion.
4. RFID reader structure according to claim 3; It is characterized in that: said first cavity also comprises second installation portion that protrudes in first receiving space and be positioned at the first installation portion side; Said barricade is installed on second installation portion, and said read write line main circuit system is between first body and barricade.
5. RFID reader structure according to claim 3 is characterized in that: said barricade is provided with around the outside lateral wall in one week, and said lateral wall contacts with the inwall of first wall extension.
6. RFID reader structure according to claim 1; It is characterized in that: said second cavity comprises second body, vertically extends second wall extension of second body and second receiving space that is surrounded by second body and second wall extension; Said second cavity also comprise protrude in second receiving space the 3rd installation portion, said aerial radiation system is installed on the 3rd installation portion.
7. RFID reader structure according to claim 6, it is characterized in that: said second body is provided with the radiation window of perforation, and the electrode of said aerial radiation system is over against this radiation window.
8. RFID reader structure according to claim 7 is characterized in that: be provided with the waterproof plastic plate between said radiation window and the aerial radiation system.
9. RFID reader structure according to claim 1 is characterized in that: be provided with the polytetrafluoroethylene sealing gasket circle between said first cavity and second cavity.
10. RFID reader structure according to claim 1 is characterized in that: said read write line main circuit system is separately fixed at first with the aerial radiation system through screw and installs on the cavity and the second installation cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202538805U CN202167042U (en) | 2011-07-21 | 2011-07-21 | RFID reader structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202538805U CN202167042U (en) | 2011-07-21 | 2011-07-21 | RFID reader structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202167042U true CN202167042U (en) | 2012-03-14 |
Family
ID=45802855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202538805U Withdrawn - After Issue CN202167042U (en) | 2011-07-21 | 2011-07-21 | RFID reader structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202167042U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262739A (en) * | 2011-07-21 | 2011-11-30 | 苏州中科集成电路设计中心有限公司 | Radio frequency identification (RFID) reader structure |
| CN112467319A (en) * | 2020-12-15 | 2021-03-09 | 郑州中科集成电路与信息系统产业创新研究院 | Terahertz filter |
-
2011
- 2011-07-21 CN CN2011202538805U patent/CN202167042U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262739A (en) * | 2011-07-21 | 2011-11-30 | 苏州中科集成电路设计中心有限公司 | Radio frequency identification (RFID) reader structure |
| CN112467319A (en) * | 2020-12-15 | 2021-03-09 | 郑州中科集成电路与信息系统产业创新研究院 | Terahertz filter |
| CN112467319B (en) * | 2020-12-15 | 2021-12-10 | 郑州中科集成电路与系统应用研究院 | Terahertz filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120314 Effective date of abandoning: 20131127 |
|
| RGAV | Abandon patent right to avoid regrant |