TWI671460B - Anti-theft electronic seal - Google Patents

Abstract

The plug of the invention comprises: a conductor with a cavity, a circuit board installed in the cavity, an upper part of the conductor is covered with an insulating sleeve, and a lower part is provided with a first engaging configuration. The circuit board is composed of an RFID chip and a lower contact to form a control circuit. Make the lower contact protrude from the bottom of the cavity. The bolt seat is provided with an antenna and a shrapnel, and a recess is provided on the outer periphery for the lower part of the conductor to be inserted, and a second snap-in configuration is provided for the positioning of the first snap-in configuration, so that the shrapnel can provide preload, so that the antenna and the control circuit And the electrical connection of the conductor, and the electrical connection can be interrupted when the plug is cut. The antenna is composed of a rubber layer combined with a spring sheet and a metal layer contacting the lower contact. When the plug is forced to rotate around the jack, the control circuit board or the lower contact will cut through the metal layer to form a disconnection loop. Zone, I interrupt the electrical connection.

Description

Anti-theft electronic seal

The invention specifically refers to a technology in which a thief can first cut off the electrical connection before forcing the plug to rotate and destroy the first or second engagement configuration.

The latest electronic seal technology is shown in the US 9508271 B2 "Electronic bolt seal" approved by the inventor. The pre-patent case can cut off the electrical connection after the thief grinds the top diameter of the plug for electromagnetic wave identification. The customs identification host alarm was provided, but the inventor found that there were still the following problems:

1. When a thief uses a power tool (electric drill) to force the plug to continuously rotate around the plug seat, the first or second engagement configuration will be destroyed, and the plug and the plug seat will be separated, and then the container door bolt can be opened and then carried out Theft or replacement, when done, just plug the bolt back into the bolt seat, and then buckle it to the container's door bolt, so that the electronic seal can operate normally as before, causing the customs identification host to fail to alert.

2. After the production of the electronic seal, the quality control personnel need to feedback the test through the identification host, but the identification host is not cheap and cannot be purchased in large quantities, resulting in the failure to improve the quality control efficiency.

The main contents of the present invention are as follows: The antenna is defined by a rubber layer combined with a bolt elastic sheet and a metal layer covered with the rubber layer, so that the bolt and the bolt seat When positioning in the first and second snap-in configurations, the shrapnel can provide a preload to the antenna to conduct the contacts and the metal layer under the circuit board, and control the circuit board or the bottom connection when the plug is forced to rotate around the jack. The dots will cut through the metal layer to form an open loop area, interrupt the electrical connection, and keep the electronic seal with an alarm function to improve the shortcomings of the pre-patent case.

A‧‧‧ plug

10‧‧‧Conductor

11‧‧‧ shaft

12‧‧‧ hat

13‧‧‧ Rongcon

13A‧‧‧Shentou Point

13B‧‧‧Positioning Point

14‧‧‧ Collar

15‧‧‧ Upper cover

16‧‧‧First snap configuration

17‧‧‧Insulation sleeve

18‧‧‧Up Test Area

20‧‧‧Circuit Board

21‧‧‧ neck neck

22‧‧‧Control loop

221‧‧‧Circuit wiring

222‧‧‧ under contact

223‧‧‧RFID Chip

224‧‧‧battery

S‧‧‧Needle

30‧‧‧ inner pole

31‧‧‧Elastic section

B‧‧‧ bolt seat

41‧‧‧First Shell

411‧‧‧empty area

412‧‧‧Joint surface

413‧‧‧ shrapnel

42‧‧‧Second Shell

43‧‧‧Shell

44‧‧‧ bottom cover

45‧‧‧ down test area

46‧‧‧jack

50‧‧‧ antenna

50A‧‧‧Folding

500‧‧‧ stickers

51‧‧‧adhesive layer

52‧‧‧metal layer

R‧‧‧ Circuit Break

53‧‧‧light-transmitting layer

54‧‧‧ release layer

55‧‧‧ contour

56‧‧‧Alignment hole

60‧‧‧Jig

61‧‧‧ Counterpoint

62‧‧‧Mould cavity

70‧‧‧Second snap-in configuration

71‧‧‧ ring groove

72‧‧‧ buckle

C‧‧‧Door Bolt

C1‧‧‧ bolt hole

M1‧‧‧ Positive Probe

M2‧‧‧ negative probe

FIG. 1 is an exploded view of the present invention.

Figure 2 is a schematic diagram of a circuit board of the present invention.

Figures 3, 4, and 5 are schematic diagrams of the process of installing the antenna of the plug base of the present invention.

Figures 6 and 7 are schematic diagrams of the relative positions of the bolt, the container door bolt and the bolt seat of the present invention.

FIG. 8 is a schematic diagram of quality control inspection by an instrument according to the present invention.

FIG. 9 is a schematic cross-sectional view of the plug combination plug seat of the present invention.

FIG. 10 is a schematic diagram of the invention forcing the plug to rotate and breaking the antenna metal layer.

Please refer to FIGS. 6 and 8. The electronic seal of the present invention is composed of a bolt A and a bolt base B. The bolt A can be inserted from the top to the bottom to lock the bolt hole C1 of the container door bolt C for Provide customs identification host to determine whether the container is opened normally.

Please refer to FIGS. 1 to 8. The plug A is mainly composed of a conductor 10, a circuit board 20 and an insulating inner rod 30. Among them, the conductor 10 has a shaft 11 and a cap head extending radially outward from the top of the shaft 11. 12. A container hole penetrating the top and bottom surfaces 13. Abutting on the cap The collar 14 at the bottom end, the diameter of the aforementioned cap head 12 is sufficient to bear against the bolt C, and the top edge of the receiving hole 13 has a countersunk hole 13A with a larger inner diameter, and the top edge of the countersunk hole 13A is more There is a positioning hole 13B with a larger inner diameter. The positioning hole 13B is used for closing a conductive upper cover 15. The conductor 10 is recessed in the first peripheral configuration with a first engaging configuration 16. The upper peripheral shape is formed with a covering. The ferrule 14 and the insulating cover 17 of the upper cover 15 are provided with a measuring area 18 recessed from the top of the insulating cover 17 to maintain a part of the top surface of the exposed upper cover 15; The rod 30 is suspended in the accommodation hole 13 so that the bottom surface of the necked portion 21 protrudes from the bottom end of the accommodation hole 13. The control circuit 22 is formed by the circuit wiring 221, the lower contact 222, the RFID chip 223 and the battery 224, and the lower contact 222 It is arranged on the rectangular bottom surface of the necked portion 22, so that it has the potential to protrude the bottom end of the accommodation hole 13 at any time. The bottom end of the circuit board 20 protrudes from the lower contact 222 and has a lancet S protruding from the bottom end. The lower contact point 222 protrudes; the inner rod 30 has an elastic portion 31 that can be fastened to the bottom of the countersink 13A and the bottom surface of the upper cover 15 to suspend the circuit board 20 elastically. In the receiving aperture 13.

Referring to FIGS. 1 to 8, the bolt seat B is formed by the first shell seat 41 and the second shell seat 42 mating together, and then inserted into a hollow shell 43 and closing the bottom end of the shell 43 with a bottom cover 44. The bottom cover 44 is further provided with a measurement area 45 which is connected to the lower end of the first case base 41. The aforementioned bolt base B is mated with the upper part of the first case base 41 and the second case base 42 and has a plug for the lower part of the conductor 10. Hole 46, and the first housing 41 further has a hollowed-out area 411 communicating with the bottom end of the insertion hole 46, and a wedge-shaped bonding surface 412 extends downward from the bottom end of the hollowed-out area 411, more than the bonding surface 412 An elastic piece 413 extending obliquely in the hollowed-out area 411 extends from the top end. The joint surface 412, the elastic piece 413, and the bottom end of the first case base 41 are used for installation of the antenna 50. The antenna 50 is at least composed of an adhesive layer 51 and a metal layer 52. The adhesive layer 51 is adhered to the bonding surface 412, the elastic piece 413, and the bottom end of the first shell base 41 inside the bolt seat B. The metal layer 52 is coated on the adhesive layer 51, and the hardness of the lower contact 222 is greater than that of the metal. The hardness of layer 52, as shown in Figures 3 to 5, the antenna 50 is still made of four layers of stickers 500, which are sequentially composed of a light-transmitting layer 53, a metal layer 52, an adhesive layer 51, and a release layer 54, and then On the back of the release layer 54 are cut a number of contour lines 55 penetrating through the metal layer 52. The contour lines 55 match the shape of the antenna 50, and the sticker 500 is provided with an alignment hole 56 at an appropriate position. The 56 series is matched with the opposite tip 61 of a jig 60, and the jig 60 is further provided with a mold cavity 62 at a position corresponding to each contour line 55 to provide the first shell seat 41 limit one by one. I will first The release layer 54 in the range of each contour line 55 is torn off, and then the alignment hole 56 is installed to the alignment tip 61, and then the release layer 54 is pressed down to tear off Position of the light-transmitting layer 53, the metal layer 52 and the adhesive layer 51 can be transferred to the bonding surface 412 and the elastic sheet 413, and then, the remaining sticker 500 is detached, and the first shell base 41 is released, and the antenna is finally controlled The 50-fold edge 50A is adhered to the bottom end of the first case base 41, so that the lower testing area 45 maintains a part of the 50-fold edge 50A of the bare outdoor line, so that the installation of each first case 41 antenna 50 can be easily completed; The second engagement configuration 70 is a ring groove 71 expanded radially outward from the insertion hole 46, and the ring groove 71 is installed with a retaining ring 72. 插 After the bolt A is inserted into the cargo bolt hole C1 and the socket 46 in sequence, the first engaging configuration 16 is positioned by the buckle 72 to lock the container door bolt C. At this time, the bolt seat B spring piece 413 can Provide a pre-pressure F to control the antenna 50 to contact the lower contact 222, and make the lancet S at least pierce the metal layer 52, and push the circuit board 20 up against the elastic portion 31, so that the control circuit 22 is electrically connected to the upper cover 15 , Conductor 10 and antenna 50 (this technology has been seen in the pre-patent patent case, so it is not described in detail), so that the RFID chip 223 emits a set of identification electromagnetic waves to provide the customs host for automatic management of the identification host, but the thief such as cutting off the plug When plugging A and stealing or replacing the contents of the container, the circuit board 20 will form an open circuit and interrupt the electrical connection, so that the identification host of the customs judges that the container has an abnormal shape; as shown in Figure 8, after the production of the present invention is completed, When the QC staff needs to test the internal circuit board 20 of the plug A through the plug A and the combination of the plug socket B, the upper test area 18 of the present invention can be used as a positive probe for a three-meter meter. M1 contacts the upper cover 15, and the lower measurement area 45 can be used for three-meter meters. The pole probe M2 touches the 50-fold edge 50A of the antenna, and you can easily check whether the electrical connection is normal. The reason is that the upper test area 18 and the lower test area 45 of the present invention can be used for feedback testing of an instrument such as a three-meter, so this instrument The purchase cost is much lower than the existing identification hosts, and it can indeed be purchased in large quantities, so that the quality control efficiency is sufficient to match the production efficiency.

Please cooperate with Figures 9 and 10 to explain that if a thief uses a power tool (electric drill) to force the plug A to rotate continuously, it will destroy the positioning of the first engaging configuration 16 and the second engaging configuration 70, and then separate the plug. A. The bolt seat B is stolen or replaced. While the bolt A is forced to rotate continuously, the needle S has penetrated the metal layer. 52, so it will be driven to cut through the metal layer 52 to form an open loop area R, thereby interrupting the above electrical connection, so that the host can be effectively identified and alarmed. In addition, the invention does not have a puncture needle S to penetrate the configuration of the metal layer 52. In the definition, the hardness of the lower contact 222 is greater than the hardness of the metal layer 52, and the margin of the preload F of the spring 413 is sufficient to make the corner of the lower contact 222 cut the metal layer 52 under two requirements. The corner of the lower contact 222 can also scratch the metal. Layer 52, so that the metal layer 52 forms a closed loop region R.

Claims (7)

An anti-theft electronic seal at least comprises: a plug, which is composed of a conductor and a circuit board; the conductor has an accommodation hole penetrating the bottom surface, and is covered with an insulation sleeve on the upper periphery, and a first engaging configuration is provided on the lower periphery; the circuit board system It is installed in the container, and the control circuit is composed of circuit wiring, RFID chip and the lower contact, and the lower contact protrudes from the bottom of the container; and a bolt seat, which is provided with an antenna and a spring sheet, and has a lower conductor for insertion. And a second snap-in configuration for positioning the first snap-in configuration, thereby controlling the shrapnel to provide preload to the antenna and the circuit board, so that the antenna, the control circuit and the conductor are electrically connected, and moreover the plug is The electrical connection can be interrupted when cut; the aforementioned antenna is composed of an adhesive layer bonded to the elastic sheet and a metal layer for the lower contacts to contact, and can drive the circuit board or the lower connector when the plug is forced to rotate around the jack. The metal layer is broken by dots, and an open loop area is formed on the metal layer, thereby interrupting the electrical connection. The anti-theft electronic seal as described in claim 1, which defines the hardness of the lower contact is greater than the hardness of the metal layer, so that when the plug is forced to rotate continuously under the condition of the electrical connection of the antenna, the control circuit and the conductor, the margin of the preload of the spring is sufficient to make The lower contact corner cuts through the metal layer, so that the metal layer forms an open loop area. The anti-theft electronic seal as described in claim 1, the bottom end of the circuit board is protruded with a puncture needle, and the bottom end of the puncture needle protrudes downwards, so that when the antenna, the control circuit and the conductor are electrically connected, the puncture needle is sufficient to puncture Through the metal layer, and when the plug is forced to rotate continuously, it can drive the lancet to break through the metal layer to form a closed loop area. According to the anti-theft electronic seal described in claim 1, 2 or 3, the plug further defines a measurement area above the outer part of the outer conductor which holds the bare conductor, and the plug seat is recessed on the outer periphery to provide a part where the bare open wire is located below the test area. , Electrical connection between antenna, control loop and conductor, so that the upper test area and lower test area can provide instrument contact to detect the electrical connection. The anti-theft electronic seal according to claim 4, wherein the tolerance hole penetrates the top and bottom surfaces of the conductor, and the top edge of the tolerance hole has a countersunk hole, and a positioning hole is further provided at the top edge of the countersunk hole. A conductive upper cover is closed, and the insulating sleeve is recessed with an upper measuring area that keeps a part of the top surface of the exposed upper cover; the circuit board is additionally provided with an insulated inner rod, which can be fastened to the countersunk hole and the upper cover. The elastic part on the bottom surface is used to suspend the circuit board in the receptacle; the bolt seat is formed by the first shell seat and the second shell seat mating, and then inserted into a hollow shell, and the bottom end of the shell is closed by a bottom cover. The bottom cover is further provided with a measurement area connected to the lower end of the first case base. The upper part of the first case base and the second case base is oppositely provided with a jack for inserting the lower part of the conductor, and the first case is more A hollowed-out area having a bottom end of a communication jack, and a bonding surface extending downward from the bottom end of the hollowed-out area, and an elastic sheet is diagonally arranged at the top of the bonding surface. The bonding surface and the elastic sheet are used for antenna installation, and the antenna A folding edge is installed at the bottom end of the first shell base, so that the lower testing area keeps a part of the exposed folding edge. An anti-theft electronic seal manufacturing method, comprising the steps of: providing a plug and a socket as described in any one of claim 1 to claim 2; making the antenna using four layers of stickers, and sequentially forming a light transmitting layer and a metal layer , The glue layer and the release layer are formed by stacking downwards, and then on the back of the release layer, a number of contour lines penetrating the metal layer are cut. The contour lines are opposite to the shape of the antenna, and are within the range of each contour line. The release layer is torn off, and then the light-transmitting layer in the range of each contour line is pressed down, and the metal layer and the adhesive layer can be transferred to the bolt base to complete the installation of the antenna. According to the anti-theft electronic seal manufacturing method as described in claim 6, the sticker is further provided with an alignment hole penetrating through the alignment hole, which is matched with the alignment tip of a jig, and the jig is more corresponding to each contour line. There are mold cavities at the position for providing the bolt seat limit one by one, so that it can provide antenna installation.