Antenna module with RFID electronic tag

Abstract

The invention relates to the technical field of antenna technology, in particular to an antenna module with an RFID electronic tag, which comprises a mounting seat, a module main body and a power supply, connecting sheets are arranged on the mounting seat and the module main body, the connecting sheets have elasticity, an inertia block, a connecting assembly and a delay assembly are arranged on the mounting seat, and the inertia block is connected with the module main body. The connecting assembly enables the two connecting pieces to be connected with each other through swinging of the inertia block, the delay assembly accumulates force through swinging of the inertia block, and the connecting pieces are controlled to be separated through the delay assembly. The inertia block is arranged, the inertia block swings depending on inertia force generated in the vehicle running process, disconnection and connection between the antenna module and the power source are achieved through the connecting assembly and the delay assembly, therefore, vehicle information identification can be conducted when the vehicle runs, and the antenna module can be prevented from continuously transmitting signals when the vehicle stops; and thus, the problem that the ETC is stolen is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of antenna technology, and in particular to an antenna module with an RFID electronic tag. Background Art

[0002] The antenna module can transmit and receive wireless signals and is a vital component in modern wireless communication systems. The antenna module with an RFID electronic tag can transmit specific signals, enabling the tracking, recognition and identification of target objects.

[0003] Vehicle ETC is an antenna module with an RFID electronic tag that is common in life. ETC transmits a specific signal through the antenna module, and then processes the signal through an external device to identify the vehicle information, thereby improving the convenience of vehicle use. However, vehicle ETC is usually bound to a bank card for deduction. Therefore, when the vehicle ETC transmits a specific signal, criminals can also identify the vehicle information through special equipment, thereby causing the bank card to be stolen. Therefore, in order to avoid bank card theft, the invention patent with application number CN202221166692.3 provides a vehicle-mounted ETC device and vehicle. The invention patent sets the antenna module in a relatively hidden place to avoid external devices directly scanning the vehicle ETC to identify vehicle information. However, existing special equipment can perform remote information identification. Therefore, there is still a risk of ETC being stolen. Some vehicles control the antenna module through the vehicle system to cut off power after the vehicle stops, so as to prevent the antenna module from continuing to transmit signals after parking, thereby avoiding the risk of bank card theft. However, many vehicles are not equipped with ETC, so they need to install ETC independently, which makes the vehicle system unable to control the antenna module to automatically shut down, and there is still a risk of bank card theft.

[0004] Therefore, in order to improve the safety of vehicle ETC use, an antenna module with an RFID electronic tag is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide an antenna module with an RFID electronic tag. In order to improve the safety of vehicle ETC use, the antenna module is powered on by the vehicle's driving inertia and is powered on after the vehicle stops. Moreover, when the antenna module is not controlled by the vehicle system, the antenna module can be powered on and off, thereby preventing the antenna module from continuously transmitting signals after the vehicle stops, thereby improving the safety of vehicle ETC use.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An antenna module with an RFID electronic tag comprises a mounting base, a module body, and a power supply. The mounting base is provided with the module body and the power supply. Both the power supply and the module body are provided with elastic connecting pieces. The mounting base is provided with an inertia block, a connecting assembly, and a delay assembly. The connecting assembly connects two connecting pieces by the swing of the inertia block. The delay assembly accumulates force through the swing of the inertia block and controls the separation of the connecting pieces through the delay assembly.

[0008] By setting an inertia block, the inertia generated by the vehicle's movement is used to drive the connecting component, so that the two connecting pieces are connected to energize the module body, thereby ensuring the normal operation of the antenna module after the vehicle is started. By setting a delay component, after the vehicle stops for a set time, the two connecting pieces are separated by the delay component, thereby powering off the module body and making the antenna module no longer transmit signals, thereby avoiding the antenna module from being continuously powered on to transmit signals and avoiding the problem of ETC information leakage. The antenna module does not need to be connected to the vehicle system, thereby improving the applicability of the antenna module. The antenna module does not require the owner to control the switch during use, so it is more convenient to use.

[0009] Preferably, the connecting assembly includes an extrusion block, a rotating shaft, and a cam. An extrusion block is provided on the connecting piece located on the module body. A pin is elastically connected to the extrusion block. A pin hole that cooperates with the pin is provided on the mounting seat. The rotating shaft is rotatably installed on the mounting seat. The cam and the inertia block are arranged on the rotating shaft, and the cam is in contact with the extrusion block. The delay assembly is connected to the rotating shaft.

[0010] By installing the inertia block on the rotating shaft, the rotating shaft can be driven to rotate when the vehicle accelerates, decelerates, or bumps up and down, thereby driving the cam to rotate and push the extrusion block, and then pushing one of the connecting pieces to move toward the other connecting piece, so that the two connecting pieces are connected to each other, and the module body is connected to the power supply, so that the antenna module can transmit signals. By setting the connection component, the two connecting pieces can remain connected, so that the two connecting pieces will not be disconnected during ETC billing. By setting the delay component, the two connecting pieces are disconnected after the vehicle stops for a set time, so that the module body is disconnected from the power supply, so that the antenna module no longer transmits signals, thereby avoiding the risk of ETC being stolen. When the vehicle vibrates, the pin will only move up and down, thereby avoiding the problem of the connecting piece being disconnected when the vehicle vibrates, causing poor contact of the connecting piece and burning of the antenna module.

[0011] The cam is provided with a toothed rod and a spring which is adapted to engage the toothed rod and the guide rail is provided with a toothed rod which is adapted to engage the toothed rod and the guide rail is provided with a toothed rod which is adapted to engage the toothed rod.

[0012] By rotating the ratchet, due to the limit hinge of the ratchet, during the rotation of the shaft, when the ratchet rotates in the opposite direction of the limit rotation, the ratchet contacts the ratchet bar and cannot rotate, and then when the shaft rotates, it can push the push rod to rotate, thereby compressing the reset spring, and when the ratchet rotates in the limit direction, the ratchet can rotate, and thus cannot push the push rod to rotate. At this time, the reset spring can push the push rod to move, and the movement of the push rod can lift the pin, thereby disengaging the pin from the pin hole and releasing the lock of the connecting piece. The setting of the rubber damping can slow down the reset speed of the piston, so that the connecting piece can be disconnected after the vehicle stops for a set time, thereby avoiding the antenna module from continuously transmitting signals after parking, thereby ensuring the safety of ETC use.

[0013] Preferably, the pin hole is provided with a chamfer, and the latch pin is provided with a conical surface matching the chamfer, and the maximum radius of the chamfer is 1-2 mm greater than the difference between the radii of the far point and the near point of the cam.

[0014] By setting the chamfer, when the pin moves to the chamfer, it can play a guiding role, so that the pin moves toward the center of the pin hole, so that the two connecting pieces can still be connected when the cam does not squeeze the extrusion block, and the maximum radius of the chamfer is 1-2mm larger than the difference between the radius of the far point and the near point of the cam, so that when the pin moves to the center of the pin hole, the cam cannot touch the connecting piece when it rotates. Therefore, during the driving of the vehicle, the cam can be prevented from reciprocatingly squeezing the connecting piece to cause stress fatigue and damage to the connecting piece. The setting of the tapered surface can make the pin fully fit with the pin hole through the push of the elastic connection, thereby avoiding the occurrence of a fitting gap, which leads to poor contact caused by vibration of the connecting piece due to vibration of the vehicle.

[0015] Preferably, the connecting piece is divided into connecting piece 1 and connecting piece 2, the connecting piece 1 is rotatably connected to the mounting base, and the connecting piece 2 is fixedly connected to the module body, and the mounting base is provided with a limit block for limiting the rotation angle of the connecting piece 1. When the connecting piece 1 is rotated to fit with the limit block, there is a gap between the connecting piece 1 and the connecting piece 2, and the pin moves to the conical surface, and a guide slope connected to the top of the unlocking slope is provided above the top block, and the inclination direction of the guide slope is opposite to that of the unlocking slope.

[0016] The setting of the rotating connection of the connecting piece 1 can prevent the connecting piece from being affected by its own elastic force, which may cause the pin to be unable to move to the pin hole when the cam is squeezed, thereby ensuring the sensitivity of the connecting component, and further avoiding the problem that when the vehicle is traveling at low speed, the two connecting pieces cannot be connected due to the small inertia force of the inertia block, causing the antenna module to malfunction. The setting of the guiding slope can guide the pin to disengage from the pin hole, preventing the connecting piece 1 from being unable to reset. When the connecting piece 1 is rotated to fit with the limit block, a gap is formed between the connecting piece 1 and the connecting piece 2, which can prevent the connecting piece 2 from blocking the movement of the connecting piece 1 when the cam squeezes the extrusion block.

[0017] Preferably, a limit plate is slidably installed on the mounting seat in the radial direction of the rotating shaft, a locking pin is elastically connected to the limit plate, a locking groove cooperating with the locking pin is provided on the rotating shaft, a lifting slope is provided at the bottom of the limit plate, a lifting block cooperating with the lifting slope is provided on the ratchet, a limit pin for limiting the reset of the limit plate is elastically connected to the ratchet, the limit pin is provided with a rounded corner, and the ratchet extends above the limit plate.

[0018] The limit plate is lifted by moving the push rod, and the limit plate is restricted from resetting by the limit pin, thereby lifting the ratchet. After the limit pin moves a set distance, the limit plate is released from being reset, thereby releasing the limit on the ratchet, preventing the ratchet from resetting and pushing the push rod to move, thereby preventing the inertia block from being frequently triggered when the vehicle is driving and aggravating the wear of the rubber damping, thereby effectively improving the service life of the antenna module. A lock pin is provided on the limit plate, which can be stuck in the lock slot to limit the rotation of the rotating shaft when the limit plate is lifted, thereby preventing the continuous swing of the inertia block from generating vibration, thereby preventing the continuous vibration from affecting the service life of the antenna module.

[0019] Preferably, the rubber damping is inclined toward the direction of the elastic force of the return spring.

[0020] The rubber damping is inclined in the direction of the elastic force of the return spring. When the push rod is reset, the friction between the rubber damping and the slide stretches the rubber damping, reducing the friction angle of the rubber damping, thereby reducing the resistance during the reset process of the push rod. When the push rod is pushed out by the return spring, the friction between the rubber damping and the slide squeezes the rubber damping, and the deformation direction reduces the friction angle between the rubber damping and the slide, thereby increasing the friction resistance of the push rod being pushed out. The squeezing of the rubber damping can also increase the friction resistance. Therefore, when the push rod is reset, the resistance of the rubber damping is small, thereby reducing the influence of the delay component on the rotation of the cam. When the push rod is pushed out, the resistance of the rubber damping can be guaranteed, avoiding the problem that the connecting piece is quickly disconnected due to the rapid ejection of the push rod, and ETC billing cannot be performed when the vehicle is briefly parked.

[0021] Preferably, the cam, rotating shaft, inertia block and ratchet form an integral structure, the center of gravity of the integral structure is perpendicular to the radial direction of the rotating shaft and the near point of the cam is perpendicular to the radial direction of the rotating shaft, the inertia block is connected to the rotating shaft through a connecting rod, and the center of gravity of the inertia block is offset toward the side of the integral structure toward the direction of energy storage of the reset spring.

[0022] The center of gravity of the overall structure is perpendicular to the near point of the cam along the radial direction of the rotating shaft. When the vehicle is stationary, the near point of the cam can be directed toward the extrusion block to prevent the cam from interfering with the reset of the connecting piece. The center of gravity of the inertia block is offset toward the side of the overall structure facing the energy storage direction of the reset spring. The inertia block is located on the side of the overall structure facing the energy storage direction of the reset spring. When the vehicle travels at a constant speed, the up and down bumps generated by the rotation of the rotating shaft can drive the ratchet to move, so that the delay component can store energy more quickly, reduce the number of swings of the inertia block, and improve the service life of the antenna module.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention sets an inertia block, which swings due to the inertia force generated during vehicle movement, and disconnects and connects the antenna module to the power supply through a connecting component and a delay component. This allows vehicle information to be identified while the vehicle is moving, and prevents the antenna module from continuously transmitting signals when the vehicle is stopped, thereby preventing ETC fraud.

[0025] 2. The delay component uses rubber damping to slow down the power-off speed of the two antenna modules, thereby preventing the antenna modules from being powered off too quickly when the vehicle stops briefly, causing external devices to be unable to recognize vehicle information and affecting the driver's user experience. The rubber damping is tilted to one side, so that the delay component reduces the rubber damping resistance when accumulating power, and can ensure the damping effect of the connection component when the antenna module is powered off. Therefore, the problem of the antenna module being unable to connect to the power supply due to insufficient inertia force when the vehicle is moving slowly due to excessive resistance is avoided, and the power-off speed of the antenna module can also be guaranteed.

[0026] 3. By setting a limit plate and delaying the movement of the ejector rod inside the delay assembly, the inertia block is locked after the delay assembly is fully charged. The inertia block is released when the ejector rod moves to the set position. This prevents the inertia block from vibrating frequently due to the vehicle's movement. This would cause frequent vibration inside the antenna module and shorten its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the internal structure of the present invention;

[0028] Figure 2 for Figure 1 A partial enlarged view of the middle part;

[0029] Figure 3 for Figure 1 Front view;

[0030] Figure 4 This is a schematic diagram of the structure of the lock pin and lock slot of the present invention;

[0031] Figure 5 for Figure 1 Cross-section at the middle BB;

[0032] Figure 6 This is a state diagram of the return spring during the release process of the present invention;

[0033] Figure 7 This is a state diagram of the top block of the present invention when it moves to above the boss.

[0034] Figure: 1, mounting base; 2, module body; 3, power supply; 4, connecting piece; 41, connecting piece 1; 42, connecting piece 2; 5, connecting assembly; 51, overall structure; 511, rotating shaft; 512, cam; 513, inertia block; 514, ratchet; 52, extrusion block; 53, latch; 531, tapered surface; 54, pin hole; 541, chamfer; 6, delay assembly; 61, slideway; 6 2. Piston; 621. Rubber damping; 63. Push rod; 64. Return spring; 65. Horizontal groove; 66. Push block; 661. Unlocking slope; 662. Blocking plate; 663. Guide slope; 67. Boss; 68. T-slot; 69. Ratchet; 7. Limit block; 8. Limit plate; 81. Lifting slope; 9. Lock pin; 10. Lock groove; 11. Limit pin; 12. Connecting rod; 13. Lifting block. DETAILED DESCRIPTION

[0035] See also Figures 1 to 7 The present invention provides an antenna module with an RFID electronic tag, and the technical solution is as follows:

[0036] See Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figure 7An antenna module with an RFID electronic tag includes a mounting base 1, a module body 2 and a power supply 3 are provided on the mounting base 1, a connecting piece 4 is provided on the module body 2 and the power supply 3, and the connecting piece 4 is elastic. The connecting piece 4 connected to the power supply 3 is a connecting piece 1 41, and the connecting piece 4 connected to the mounting base 1 is a connecting piece 2 42. The mounting base 1 is provided with an inertia block 513, a connecting component 5 and a delay component 6, and the inertia block 513 is connected to the connecting component 5 and the delay component 6; when the vehicle is running, the inertia force generated by the acceleration and deceleration of the vehicle and the bumps of the vehicle causes the inertia block 513 to swing, and the swing of the inertia block 513 causes the connecting component 5 to connect the two connecting pieces 4, and then the delay component 6 is connected by the inertia block 513. The delay component 6 is released to control the separation of the two connecting pieces 4 after the inertia block 513 stops swinging, so that the vehicle information can be identified when the vehicle is driving, and the antenna module can be prevented from continuously transmitting signals when the vehicle stops, thereby avoiding the problem of ETC being stolen. The connecting component 5 includes an extrusion block 52 arranged on the connecting piece 41, and the extrusion block 52 is elastically connected with a latch 53. The elastic connection is connected by a spring. A pin hole 54 that cooperates with the latch 53 is opened on the mounting seat 1, and a rotating shaft 511 is provided on the rotating shaft 511. A cam 512 and an inertia block 513 are provided on the rotating shaft 511. When the inertia block 513 is swung by the inertia of the vehicle, it drives the rotating shaft 511 to rotate. At this time, the cam 512 can squeeze the extrusion block 52 to make the connecting piece 4 1 moves toward the second connecting piece 42, and when the latch 53 moves to the pin hole 54, the latch 53 enters the pin hole 54, thereby limiting the movement of the connecting piece 1 41, so that the two connecting pieces 4 maintain a stable connection state. Therefore, during the driving process of the vehicle, the signal transmission of the antenna module is maintained, so that the vehicle information can be identified. When the vehicle vibrates, the latch 53 only moves up and down, thereby preventing the connecting piece 4 from being disconnected when the vehicle vibrates, causing poor contact of the connecting piece 4 and causing the antenna module to burn out; the delay component 6 includes a piston 62 provided on the mounting seat 1, and a push rod 63 and a rubber damper 621 are provided on the piston 62. A return spring 64 is connected to the inside of the piston 62 and the slide 61, and a horizontal Slot 65, the width of the transverse groove 65 is 1mm smaller than the width of the pin hole 54, a push rod 63 is provided on the piston 62, and a top block 66 with an unlocking inclined surface 661 is slidably installed at the end of the push rod 63, and the unlocking inclined surface 661 is inclined downward along a first direction, and the first direction is the elastic direction of the return spring 64. The mounting seat 1 is provided with a boss 67 below the pin hole 54, and the boss 67 is provided with a T-shaped slot 68 below the transverse groove 65. The top block 66 is set to a shape that cooperates with the T-shaped slot 68. The boss 67 is located on one side of the slide 61 and is rotatably installed with a blocking plate 662 through a torsion spring. The blocking plate 662 protrudes above the step of the top block 66. The rotating shaft 511 is provided with a ratchet 514 on one side of the inertia block 513, and the ratchet 514 is connected to the rotating shaft 511 for limited rotation.The push rod 63 is provided with a ratchet 69 that cooperates with the ratchet 514; the ratchet 514 is connected by a rotation and rotates downward under the action of gravity, and the ratchet 514 is connected by a limited rotation. When it rotates in the direction of squeezing the return spring 64, the ratchet 514 cooperates with the ratchet 69 and limits the rotational freedom of the ratchet 514. At this time, the inertia block 513 drives the rotating shaft 511 to rotate, which can compress the return spring 64. When the rotating shaft 511 rotates in the direction of releasing the return spring 64, the rotational freedom of the ratchet 514 cannot be limited. At this time, the rotation of the rotating shaft 511 cannot drive the push rod 63 to move, and then the inertia block 513 can only store force on the return spring 64, but cannot release the return spring 64. Therefore, after the vehicle stops, the return spring 64 squeezes The piston 62 is pressed to push the push rod 63 out, and due to the setting of the blocking plate 662, the push block 66 can be blocked from entering the T-slot 68, so that the push block 66 can move along the upper surface of the boss 67, so that the push block 66 passes through the transverse groove 65 and lifts the latch 53 through the unlocking slope 661, so that the connecting piece 41 is unlocked and the two connecting pieces 4 are separated from each other. Therefore, after the vehicle stops, the two connecting pieces 4 can be disconnected, thereby ensuring the safety of ETC use. The setting of the rubber damping 621 can slow down the resetting speed of the piston 62, so that the connecting piece 4 can be disconnected after the vehicle stops for a set time, thereby avoiding the situation where the antenna module is powered off too quickly when the vehicle stops for a short time, resulting in the external device being unable to recognize the vehicle information, thereby affecting the normal operation of the ETC. In use, when the return spring 64 is fully released, the top block 66 moves to the maximum displacement and falls under the boss 67 by gravity, and when the return spring 64 accumulates force again, the top block 66 can move along the T-slot 68, and will not interfere with the connection between the two connecting pieces 4 when the vehicle is started again next time. The rubber damper 621 is inclined in the direction of the elastic force of the return spring 64. When the push rod 63 is reset, the friction between the rubber damper 621 and the slide 61 stretches the rubber damper 621, reducing the friction angle of the rubber damper 621, thereby reducing the resistance during the reset process of the push rod 63, and when the push rod 63 is pushed out by the return spring 64, the friction between the rubber damper 621 and the slide 61 squeezes the rubber damper 621, and the deformation direction makes the rubber damper 621 and the slide When the rubber damper 621 is squeezed, the sealing between the rubber damper 621 and the slide 61 is increased, so that the piston 62 generates negative pressure inside the slide 61 when the piston 62 moves, thereby increasing the resistance of the rubber damper 621. Therefore, when the push rod 63 is reset, the resistance of the rubber damper 621 is small, thereby reducing the influence of the delay component 6 on the rotation of the cam 512, ensuring the sensitivity of the connection of the connecting piece 4, and thus ensuring the connection of the two connecting pieces 4 when the vehicle is traveling at a low speed, and enabling the push rod 63 to be quickly reset, ensuring that the delay component 6 can trigger the separation of the two connecting pieces 4, and avoiding the two connecting pieces 4 from being connected.Because the top block 66 has not moved to the rear of the blocking plate 662, the top block 66 still moves along the T-slot 68 and cannot push the latch 53 to move, causing the connecting piece 4 to remain in a connected state when the vehicle stops, resulting in the antenna module being unable to be powered off. When the top rod 63 is pushed out, the resistance of the rubber damping 621 can be guaranteed to avoid the problem that the top rod 63 is quickly pushed out and the connecting piece 4 is quickly disconnected, and ETC billing cannot be performed when the vehicle is temporarily parked; the cam 512, the rotating shaft 511, the inertia block 513 and the ratchet 514 are an integral structure 51, and the center of gravity of the integral structure 51 is perpendicular to the radial direction of the rotating shaft 511 and the near point of the cam 512 along the radial direction of the rotating shaft 511. The inertia block 513 is connected to the rotating shaft 511 through the connecting rod 12. The center of gravity of the inertia block 513 is offset toward the direction of energy storage of the return spring 64, which is connected to the shaft 511. The center of gravity of the overall structure 51 is perpendicular to the radial direction of the rotating shaft 511 and the near point of the cam 512. When the vehicle is stationary, the near point of the cam 512 can be directed toward the extrusion block 52, preventing the cam 512 from interfering with the reset of the connecting piece 4. The center of gravity of the inertia block 513 is offset toward the direction of energy storage of the return spring 64, which can make the up and down bumps of the vehicle driving the rotating shaft 511 during uniform speed driving the ratchet 69 to move. This allows the delay assembly 6 to store energy more quickly, reduces the number of swings of the inertia block 513, and improves the service life of the antenna module.

[0037] See Figures 5 to 7The pin hole 54 is provided with an oblique chamfer 541, and the plug pin 53 is provided with a conical surface 531 that matches the oblique chamfer 541. The maximum radius of the oblique chamfer 541 is greater than the difference between the radius of the far point and the near point of the cam 512 by 1 mm. By setting the oblique chamfer 541 of the pin hole 54, when the plug pin 53 moves to the oblique chamfer 541, it can play a guiding role, so that the plug pin 53 moves toward the center of the pin hole 54, so that when the cam 512 does not squeeze the extrusion block 52, the two connecting pieces 4 can still be connected, and the maximum radius of the oblique chamfer 541 is greater than the difference between the radius of the far point and the near point of the cam 512. The difference in point radius is 1-2mm, which can make the cam 512 unable to touch the connecting piece 4 when the pin 53 moves to the center of the pin hole 54. Therefore, during the driving of the vehicle, the cam 512 can be prevented from reciprocatingly squeezing the connecting piece 4 and causing stress fatigue and damage to the connecting piece 4. The setting of the tapered surface 531 can make the pin 53 fully fit with the pin hole 54 through the push of the elastic connection, thereby avoiding the occurrence of a fitting gap, which leads to poor contact caused by the vibration of the connecting piece 4 caused by the vibration of the vehicle; the connecting piece 1 41 is rotatably connected to the mounting seat 1, and the mounting seat 1 A limit block 7 is provided on the top to limit the rotation angle of the connecting piece 41, and a guide slope 663 connected to the top of the unlocking slope 661 is provided above the top block 66. The guide slope 663 is inclined in the opposite direction to the unlocking slope 661. The rotation connection of the connecting piece 41 can prevent the connecting piece 4 from rebounding due to its own elastic force, thereby causing the elastic force of the connecting piece 41 to affect the swing amplitude of the inertia block 513, thereby preventing the pin 53 from being unable to move to the pin hole 54 when the vehicle is traveling at low speed, thereby ensuring the sensitivity of the connecting assembly 5. The inertia force is too small to connect the two connecting pieces 4, causing the antenna module to malfunction. The setting of the guide slope 663 allows the pin 53 to slide along the wire slope under the action of the elastic force when the pin 53 is lifted, thereby moving the pin 53 away from the center of the pin hole 54, so that the connecting piece 1 41 is reset. When the connecting piece 1 41 rotates to fit with the limit block 7, a gap is formed between the connecting piece 1 41 and the connecting piece 2 42, which can prevent the connecting piece 2 42 from blocking the movement of the connecting piece 1 41 when the cam 512 squeezes the extrusion block 52.

[0038] See Figures 1 to 4The limiting plate 8 is slidably installed on the mounting seat 1 in the radial direction of the rotating shaft 511, and a locking pin 9 is elastically connected to the limiting plate 8. The rotating shaft 511 is provided with a locking groove 10 that cooperates with the locking pin 9. A lifting inclined surface 81 is provided at the bottom of the limiting plate 8, and a lifting block 13 that cooperates with the lifting inclined surface 81 is provided on the ratchet 69. The ratchet 69 is elastically connected with a limiting pin 11 that limits the resetting of the limiting plate 8. The limiting pin 11 is provided with a rounded corner, and the ratchet teeth 514 extend to the top of the limiting plate 8. During the resetting process of the ejector 63, the limiting plate 8 can be lifted up by cooperating with the lifting inclined surface 81 through the lifting block 13. At this time, the limiting pin 11 is no longer blocked and pops out, thereby limiting the freedom of the limiting plate 8 to move downward, and The tooth 514 extends to the top of the limit plate 8. At this time, the limit plate 8 lifts the ratchet tooth 514 to prevent the ratchet tooth 514 from cooperating with the ratchet bar 69 again, thereby interfering with the movement of the push rod 63. When the shaft 511 rotates, the lock slot 10 rotates to the lock pin 9, and the lock pin 9 can enter the lock slot 10 through the elastic connection, thereby limiting the rotation freedom of the shaft 511, thereby preventing the continuous swing of the inertia block 513 from generating vibration, thereby preventing the continuous vibration from affecting the service life of the antenna module. When the push rod 63 is reset, the limit plate 8 is in a falling state, so the limit pin 11 can be squeezed by the rounded corner on the limit pin 11 to shrink the limit pin 11, which will not affect the movement of the push rod 63.

[0039] How it works: See Figures 1 to 7When the vehicle generates inertia during driving, the inertia block 513 begins to swing due to the inertia force, and the swing of the cam 512 squeezes the connecting piece 1 41 to move toward the connecting piece 2 42. When the latch 53 moves to the chamfer 541, the latch 53 moves along the chamfer 541 under the elastic force of the elastic connection, and pushes the connecting piece 1 41 to move toward the connecting piece 2 42. When the latch 53 moves to the center of the pin hole 54, the two connecting pieces 4 are connected. At this time, the antenna module is energized, allowing external equipment to detect the vehicle ETC and transmit signals to identify vehicle information. When the inertia block 513 swings toward the compression return spring 64, the ratchet 514 cooperates with the ratchet bar 69 and limits the rotational freedom of the ratchet 514, thereby pushing the push rod 63 to move. The piston 62 squeezes the return spring 64. During the movement of the push rod 63, the push rod 63 drives the push block 66 to interact along the T-slot 68. When it moves to the blocking plate 662, the blocking plate 662 can be pushed open to continue moving, so that the push block 66 is separated from the T-slot 68. As the push rod 63 continues to move, the lifting block 13 cooperates with the lifting inclined surface 81. At this time, the movement of the push rod 63 can lift the limit plate 8 and lift the ratchet 514 through the limit plate 8, thereby preventing the ratchet 514 from cooperating with the ratchet bar 69. During the rotation of the shaft 511, the lock slot 10 rotates to the lock pin 9, and the lock pin 9 can enter the lock slot 10 through the elastic connection, thereby limiting the rotational freedom of the shaft 511, thereby preventing the continuous swing of the inertia block 513 from generating vibration. The limit plate 8 is prevented from falling by the return spring 64, and the return spring 64 can release the elastic force and slow down the movement speed of the piston 62 through the rubber damper 621. As the push rod 63 moves, the limit pin 11 moves to the side of the limit plate 8. At this time, the limit plate 8 can fall, and the restriction on the freedom of the rotating shaft 511 is released. At this time, if the vehicle still generates inertia, the inertia block 513 stores energy in the return spring 64 again. At this time, the vehicle stops and the push rod 63 continues to move under the action of the return spring 64. When the push block 66 moves to the boss 67, it cannot enter the T-slot 68 due to the obstruction of the blocking plate 662, thereby moving along the boss 6 7 moves, at this time the top block 66 can pass through the transverse groove 65 and contact the latch 53, and lift the latch 53 through the unlocking inclined surface 661. As the top block 66 moves, the latch 53 moves to the top of the unlocking inclined surface 661, so that the latch 53 contacts the inclined surface of the wire, so that the latch 53 slides along the inclined surface of the wire under the action of the elastic force, thereby moving the latch 53 away from the center of the pin hole 54, so that the connecting piece 41 is reset, thereby disconnecting the two connecting pieces 4, and then the antenna module is powered off when the vehicle is parked, thereby avoiding the risk of ETC being stolen. As the top block 66 continues to move, the top block 66 moves below the boss 67, at this time the reset spring 64 is completely released, and the top block 66 will not block the latch 53 from entering the pin hole 54.When the return spring 64 is squeezed again to drive the top block 66 to move, the top block 66 can enter the T-slot 68 without causing the latch 53 to be ejected.

[0040] A specific embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiment described above. For those skilled in the art, various changes, modifications, substitutions, and variations of these embodiments without departing from the principles and ideas of the present invention should still fall within the scope of protection of the present invention.

Claims

1. An antenna module with an RFID electronic tag, characterized in that: The invention comprises a mounting seat (1), a module body (2) and a power supply (3); the mounting seat (1) is provided with the module body (2) and the power supply (3); the power supply (3) and the module body (2) are both provided with a connecting piece (4); the connecting piece (4) is elastic; the mounting seat (1) is provided with an inertia block (513), a connecting component (5) and a delay component (6); the connecting component (5) connects the two connecting pieces (4) to each other by means of the swing of the inertia block (513); the delay component (6) stores force by means of the swing of the inertia block (513) and controls the separation of the connecting pieces (4) through the delay component (6).

2. The antenna module with an RFID electronic tag according to claim 1, characterized in that: The connecting assembly (5) comprises an extrusion block (52), a rotating shaft (511), and a cam (512). The extrusion block (52) is provided on the connecting piece (4) on the module body (2). A latch (53) is elastically connected to the extrusion block (52). The mounting seat (1) is provided with a pin hole (54) that cooperates with the latch (53). The rotating shaft (511) is rotatably mounted on the mounting seat (1). The cam (512) and the inertia block (513) are arranged on the rotating shaft (511), and the cam (512) is in contact with the extrusion block (52). The delay assembly (6) is connected to the rotating shaft (511).

3. The antenna module with an RFID electronic tag according to claim 2, characterized in that: The delay assembly (6) includes a slideway (61), a piston (62), a push rod (63), and a return spring (64). The slideway (61) is provided on the mounting seat (1). The piston (62) is slidably mounted inside the slideway (61). A transverse groove (65) is provided on the side wall of the pin hole (54). The width of the transverse groove (65) is smaller than the width of the pin hole (54). The piston (62) is provided with a push rod (63). A push block (66) having an unlocking inclined surface (661) is slidably mounted on the end of the push rod (63). The unlocking inclined surface (661) is inclined downward along a first direction. The mounting seat (1) is provided with a boss (67) below the pin hole (54). The boss (67) A T-shaped slot (68) is provided below the transverse slot (65), and the top block (66) is configured to cooperate with the T-shaped slot (68). A blocking plate (662) is rotatably mounted on the top block (66) via a torsion spring, and the blocking plate (662) protrudes above the step of the top block (66). The rotating shaft (511) is provided with a ratchet (514) on one side of the inertia block (513), and the ratchet (514) is rotationally connected to the rotating shaft (511). A ratchet strip (69) cooperating with the ratchet (514) is provided on the top rod (63), and a rubber damper (621) is provided on the piston (62). The piston (62) is elastically connected to the inner wall of the slideway (61) via a return spring (64).

4. The antenna module with an RFID electronic tag according to claim 2, characterized in that: The pin hole (54) is provided with a chamfer (541), and the latch pin (53) is provided with a conical surface (531) that matches the chamfer (541). The maximum radius of the chamfer (541) is 1-2 mm greater than the difference between the far point and the near point radius of the cam (512).

5. The antenna module with an RFID electronic tag according to claim 3, characterized in that: The connecting piece (4) is divided into a connecting piece 1 (41) and a connecting piece 2 (42). The connecting piece 1 (41) is rotatably connected to the mounting seat (1), and the connecting piece 2 (42) is fixedly connected to the module body (2). The mounting seat (1) is provided with a limit block (7) for limiting the rotation angle of the connecting piece 1 (41). When the connecting piece 1 (41) is rotated to fit with the limit block (7), a gap is formed between the connecting piece 1 (41) and the connecting piece 2 (42), and the latch (53) moves to the conical surface (531). A guide inclined surface (663) connected to the top of the unlocking inclined surface (661) is provided above the top block (66). The guide inclined surface (663) and the unlocking inclined surface (661) are inclined in opposite directions.

6. The antenna module with an RFID electronic tag according to claim 3, characterized in that: A limit plate (8) is slidably mounted on the mounting seat (1) in a radial direction toward the rotating shaft (511), a locking pin (9) is elastically connected to the limit plate (8), a locking groove (10) cooperating with the locking pin (9) is provided on the rotating shaft (511), a lifting inclined surface (81) is provided at the bottom of the limit plate (8), a lifting block (13) cooperating with the lifting inclined surface (81) is provided on the ratchet (69), a limit pin (11) for limiting the reset of the limit plate (8) is elastically connected to the ratchet (69), the limit pin (11) is provided with a rounded corner, and the ratchet (514) extends to the top of the limit plate (8).

7. The antenna module with an RFID electronic tag according to claim 3, characterized in that: The rubber damper (621) is inclined toward the elastic force direction of the return spring (64).

8. The antenna module with an RFID electronic tag according to claim 3, characterized in that: The cam (512), the rotating shaft (511), the inertia block (513) and the ratchet (514) form an integral structure (51). The center of gravity of the integral structure (51) is perpendicular to the radial direction of the rotating shaft (511) and the near point of the cam (512) is perpendicular to the radial direction of the rotating shaft (511). The inertia block (513) is connected to the rotating shaft (511) through a connecting rod (12). The center of gravity of the inertia block (513) is offset toward one side of the integral structure (51) toward the energy storage direction of the return spring (64).

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