ETC pass card assembly, vehicle-mounted unit and vehicle-mounted device
By using a PCB board and conductive contacts in the ETC card assembly, the problem of contact failure between the CPU card gold finger interface and the SIM card socket due to the thickness of the casing was solved, and reliable communication was achieved in high-temperature environments.
Patent Information
- Application Number
- CN202520389316.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-05
AI Technical Summary
The CPU card's gold finger interface and SIM card slot failed to make contact due to the thickness of the outer casing, which could not meet the high-temperature testing requirements of automotive OEM products.
Design an ETC toll card component, using a PCB board as the board body, with conductive contacts on the connectors contacting the SIM card socket, and the shell material being heat-resistant to above 95℃. The conductive contacts indirectly connect the gold finger interface and the SIM card socket to ensure reliable communication.
The issue of failed contact between the gold finger interface and the SIM card slot has been resolved, meeting the high-temperature testing requirements of automotive OEM products and ensuring smooth communication.
Smart Images
Figure CN223884032U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of nonstop payment system, especially ETC pass card assembly, vehicle-mounted unit and vehicle-mounted device. BACKGROUND
[0002] When the vehicle drives into the lane of the high-speed port, as long as the OBU device is installed on the window and the CPU card (also known as electronic nonstop payment pass card) is inserted into the OBU device, the OBU device can be used to communicate with the RSU antenna on the roadside, and the reading and writing of driving information and payment can be automatically completed without stopping.
[0003] However, the structural strength of the CPU card is weak and is easily damaged. If a shell is sleeved on the CPU card, although the shell can play a protective role, the gold finger interface of the CPU card received in the shell will have a certain thickness of the wall of the shell and a gap between the SIM card seat of the OBU device, resulting in failure of the gold finger interface to contact the SIM card seat. UTILITY MODEL CONTENTS
[0004] The utility model solves the technical problem in providing a kind of ETC pass card assembly, vehicle-mounted unit and vehicle-mounted device.
[0005] The utility model solves the technical problem and adopts the technical scheme that a kind of ETC pass card assembly is structured, including shell and pass card received in the shell;
[0006] The pass card includes board, gold finger interface arranged on the board and connecting piece connected at the gold finger interface;The connecting piece protrudes from the surface of the board, and the side surface of the connecting piece away from the board is provided with conductive contact piece connected with the gold finger interface;
[0007] The side wall opposite to the gold finger interface of the shell is provided with through hole, and the conductive contact piece is flush with the outer hole of the through hole.
[0008] In some embodiments, the shell is made of material resistant to temperature above 95 DEG C;The board is PCB;
[0009] The pass card further includes circuit module connected to the board, and the circuit module is connected with the gold finger interface to communicate with vehicle-mounted unit.
[0010] In some embodiments, the connecting piece includes cushion block, and first PCB plate and second PCB plate connected to opposite sides of the cushion block respectively;
[0011] The first PCB board and the second PCB board are double-sided PCB boards, wherein the pads on the outward side of the first PCB board are the conductive contact pieces, and the pads on the outward side of the second PCB board are in contact with the gold finger interface;
[0012] The pads of the first PCB board and the pads of the second PCB board are connected by wires passing through the cushion block.
[0013] In some embodiments, the cushion block is a plate-shaped structure made of FR-4 material.
[0014] In some embodiments, the gold finger interface includes six interface ends, namely a power supply end for connecting a power supply, a reset end for reset signal input, a clock end for clock signal input, a ground end for grounding, a detection end for card insertion detection, and a data transmission end for data transmission.
[0015] The six conductive contact pieces are arranged on the side surface of the connecting piece opposite to the plate body, and correspond to the six interface ends respectively.
[0016] In some embodiments, the circuit module includes at least one circuit chip, a plurality of capacitors, and a resistor R1 for generating a detection signal.
[0017] The circuit chip is provided with a VCC pin for connecting a power supply, a GND pin for grounding, an IO pin for data transmission, an RST pin for reset signal input, a CLK pin for clock signal input, and an NC pin for card insertion detection; the VCC pin is connected with the power supply end, the ground end is connected with the GND pin, the IO pin is connected with the data transmission end, the RST pin is connected with the reset end, and the CLK pin is connected with the clock end; the NC pin is connected with the detection end.
[0018] One end of the resistor R1 is connected with the detection end, and the other end is used for connecting a contact terminal of a SIM card seat of the vehicle-mounted unit.
[0019] The plurality of capacitors include a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, and a capacitor C7, each of which has one end grounded; the other end of the capacitor C3 is connected with the power supply end, and the other end of the capacitor C4 is also connected with the power supply end; the other end of the capacitor C5 is connected with the reset end, the other end of the capacitor C6 is connected with the clock end, and the other end of the capacitor C7 is connected with the data transmission end.
[0020] In some embodiments, the shell comprises a main body part and a cover, one side of the main body part is open, and the inside of the main body part forms a receiving cavity for accommodating the pass card; the cover is arranged at the opening of the main body part to close the opening.
[0021] The main body part is provided with a first end for extending into the vehicle-mounted unit, and a second end opposite to the first end, and a handle part is arranged at the second end to facilitate the insertion and extraction of the ETC pass card assembly.
[0022] In some embodiments, a positioning structure is further arranged between the shell and the pass card to fix the pass card in the receiving cavity.
[0023] The positioning structure comprises at least one pin arranged in the receiving cavity, and at least one insertion hole arranged on the plate body for the pin; the insertion hole and the pin are arranged one by one.
[0024] The positioning structure comprises at least one sleeve arranged in the receiving cavity, and at least one insert corresponding to the sleeve; the insert is configured to pass through the plate body and be installed in the sleeve to press the plate body at the sleeve.
[0025] The vehicle-mounted unit is provided with a card slot for inserting the ETC pass card assembly; the size of the card slot is matched with the size of the shell of the ETC pass card assembly.
[0026] The card slot is further provided with a SIM card seat, and the contact terminal of the SIM card seat is used for contacting the conductive contact piece of the ETC pass card assembly.
[0027] The utility model discloses a vehicle-mounted device, which comprises the ETC pass card assembly and the vehicle-mounted unit; the ETC pass card assembly is inserted into the vehicle-mounted unit to communicate.
[0028] The ETC pass card assembly contacts the SIM card seat of the vehicle-mounted unit through the conductive contact piece on the connecting piece, so that the golden finger interface can indirectly connect with the SIM card seat and communicate, and the problem that the golden finger interface fails to contact the SIM card seat of the vehicle-mounted unit due to distance is solved. BRIEF DESCRIPTION OF DRAWINGS
[0029] The utility model will be further described below in combination with the drawings and examples, and the drawings are as follows:
[0030] Figure 1 It is the structure schematic diagram of the ETC pass card assembly and the vehicle-mounted unit of the vehicle-mounted device in some embodiments of the utility model in the separation state.
[0031] Figure 2 is Figure 1 is a structural schematic view of an ETC toll card assembly and a vehicle-mounted unit in a back direction of the ETC toll card assembly;
[0032] Figure 3 is a sectional view of the ETC toll card assembly in a thickness direction of the ETC toll card assembly in some embodiments of the present application;
[0033] Figure 4 is an internal structure diagram of the ETC toll card assembly after the cover body is disassembled in some embodiments of the present application;
[0034] Figure 5 is a structural schematic view of a connecting piece and a plate body in a separated state in some embodiments of the present application;
[0035] Figure 6 is a structural schematic view of the connecting piece in an enlarged scale in some embodiments of the present application;
[0036] Figure 7 is a circuit schematic diagram of a golden finger interface and a part of a circuit module in some embodiments of the present application;
[0037] Figure 8 is a circuit schematic diagram of a circuit chip US2 of the circuit module in some embodiments of the present application;
[0038] Figure 9 is a circuit schematic diagram of a circuit chip US3 of the circuit module in some embodiments of the present application.
[0039] The reference signs: vehicle-mounted device 1000; ETC toll card assembly 100; shell 1; through hole 11; main body part 12; handle part 121; cover body 13; toll card 2; plate body 21; golden finger interface 22; connecting piece 23; conductive contact sheet 231; pad 232; first PCB 233; second PCB 234; positioning structure 24; bolt 241; socket 242; sleeve 243; circuit module 25; circuit chip 251; vehicle-mounted unit 200; card slot 201. DETAILED DESCRIPTION
[0040] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, constructed and operated in a particular direction, and are only for the convenience of describing the present technical solution, and do not indicate that the indicated device or element must have a particular direction, therefore it cannot be understood as a limitation of the present application.
[0041] It should be further pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. When an element is referred to as "on" or "below" another element, the element can be "directly" or "indirectly" above the other element, or there can be one or more intermediate elements. The terms "first", "second", "third" and the like are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, therefore, the features with "first", "second", "third" and the like can be explicitly or implicitly included one or more of the features. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0042] In the following description, specific details such as specific system structures, technologies, etc. are presented for the purpose of illustration, not for the purpose of limitation, so as to thoroughly understand the embodiments of the present application. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed description of well-known systems, devices, circuits and methods is omitted to avoid unnecessary details that hinder the description of the present application.
[0043] The present application constructs an ETC pass card assembly 100, which can solve the problem of the distance between the golden finger interface 22 and the SIM card seat of the vehicle-mounted unit 200, resulting in the failure of the golden finger interface 22 and the SIM card seat to contact.
[0044] Reference can be made to Figure 1 and Figure 2 The ETC pass card assembly 100 mainly includes a shell 1 and a pass card 2. Continue to refer to Figure 3 and Figure 4The shell 1 is used to form a containing cavity to accommodate the pass card 2. The pass card 2 can include a board body 21, and a gold finger interface 22 provided on the board body 21; the gold finger interface 22 is embedded on the board body 21 and flush or recessed on the surface of the board body 21. A connecting piece 23 is also provided at the gold finger interface 22, which protrudes from the surface of the board body 21, and the connecting piece 23 is provided with a conductive contact piece 231 on the side surface of the board body 21, which is connected with the gold finger interface 22. As shown in Figure 3 , the side wall of the shell 1 opposite to the gold finger interface 22 is provided with a through hole 11, and the conductive contact piece 231 is flush with the outer opening of the through hole 11.
[0045] It can be understood that the conductive contact piece 231 on the side surface of the connecting piece 23 is used to contact the SIM card seat, and since the conductive contact piece 231 is connected with the gold finger interface 22, the gold finger interface 22 can be indirectly connected with the SIM card seat and communicate. In other words, the connecting piece 23 is used to fill the gap between the gold finger interface 22 and the SIM card seat to ensure that the gold finger interface 22 and the SIM card seat can be reliably connected. It is also noted here that the SIM card seat is provided with a resilient structure to ensure good contact between the conductive contact piece 231 and the SIM card seat, so that the conductive contact piece 231 is slightly lower / higher than the outer opening of the through hole 11, which can still be considered to be flush with the outer opening of the through hole 11.
[0046] Secondly, in some related technologies, the card body (part of the board body 21) of the CPU card is made of PVC material with a temperature resistance range of -20℃ to 60℃, which cannot pass the high temperature test of the front-mounted product of the automobile. It is noted here that generally, the front-mounted product of the automobile needs to meet the 90℃ high temperature test required by the GB / T38444-2019 standard.
[0047] In view of the problem that the CPU card cannot pass the high temperature test of the front-mounted product of the automobile, the pass card 2 can be improved to use a PCB board as the board body 21, and the circuit part of the CPU card is made on the PCB board to form a PCBA circuit board. In other words, as shown in Figure 4 or Figure 5 , the board body 21 is a PCB board, and the board body 21 is connected with a circuit module 25, which can have the functions of data processing, encryption and decryption, and information storage. The circuit module 25 is connected in communication with the OBU device through the gold finger interface 22 to cooperate to realize the reading and writing of driving information and payment.
[0048] It should be noted that in the related art, FR-4 (epoxy resin) material is selected as the base material of the PCB, and the long-term working temperature of the PCB is generally between 130-140°C, and the instantaneous tolerance temperature can reach 150-260°C.
[0049] In addition, the shell 1 can be made of a material resistant to temperatures above 95°C; for example, the shell 1 is made of PC material, which can withstand temperatures up to 105°C. In this way, all components of the ETC pass card assembly 100 can meet the requirement of temperature resistance of 90°C, solving the problem that the CPU card cannot complete the high-temperature test of the front-mounted vehicle.
[0050] The following will take the pass card 2 as an example of changing to a PCBA circuit board to continue to explain the composition of the ETC pass card assembly 100.
[0051] In some embodiments, reference can be made to Figure 2 The shell 1 can include a main body 12 and a cover 13, one side of the main body 12 is open, and the inside of the main body 12 is hollow to form a receiving cavity, and the cover 13 is mounted at the opening of the main body 12 to close the opening. Optionally, a through hole 11 is formed on the cover 13.
[0052] The main body 12 can be a longitudinal structure, and the length direction is parallel to the direction of inserting the OBU device. Of course, the main body 12 can also be other shapes of structures, which are adapted to the shape of the card slot 201 of the OBU device, which is not limited here.
[0053] Reference can be made to Figure 1 After the main body 12 is inserted into the OBU device, one end of the main body 12 is located in the card slot 201 of the OBU device, and the other end opposite to the one end is located outside the card slot 201 of the OBU device; and the end of the main body 12 outside the card slot 201 of the OBU device is provided with a handle portion 121 to facilitate the user to insert and pull out the ETC pass card assembly 100 from the OBU device. In some embodiments, the handle portion 121 can be a longitudinal structure, and the length is greater than the width of the main body 12, so that the two ends of the handle portion 121 are located on the two sides of the main body 12 in the width direction respectively.
[0054] In addition, reference can be made to Figure 4 A positioning structure 24 can be further provided between the shell 1 and the pass card 2 to fix the pass card 2 in the receiving cavity.
[0055] In some embodiments, as Figure 4As shown, the positioning structure 24 can include at least one pin 241 arranged in the accommodating cavity, and at least one insertion hole 242 arranged on the plate body 21 for the pin 241 to be inserted into. The insertion hole 242 is arranged in one-to-one correspondence with the pin 241. When the plate body 21 is loaded into the accommodating cavity, each pin 241 can be inserted into the corresponding insertion hole 242 to fix the position of the access card 2. Alternatively, the inner walls between the cover body 13 and the main body 12 can also cooperate with each other to press the access card 2 in the accommodating cavity.
[0056] The positioning structure 24 can also include at least one sleeve 243 arranged in the accommodating cavity, and at least one plug (not shown) arranged on the sleeve 243. The sleeve 243 is arranged in one-to-one correspondence with the plug. After the plate body 21 is loaded into the accommodating cavity, the plug can be inserted through the plate body 21 and into the corresponding sleeve 243. The connecting piece 23 can press the plate body 21 against the end of the sleeve 243, thereby fixing the position of the access card 2. In some embodiments, the sleeve 243 can be an internally threaded pipe, and the plug can be a screw.
[0057] In other embodiments, the positioning structure 24 can also be configured to form a limiting area (not shown), and the plate body 21 can be loaded into the limiting area and fixed in the limiting area under the limitation of the walls of the limiting area. For example, the positioning structure 24 can include at least four positioning columns arranged around the periphery of the plate body 21, wherein the peripheral walls of the positioning columns serve as the walls of the limiting area. For another example, the positioning structure 24 can include a side wall formed according to the planar shape of the plate body 21, wherein the side wall serves as the wall of the limiting area.
[0058] Continuing to refer to Figure 5 , the plate body 21 can be a rectangular plate structure. Of course, the plate body 21 can also be of other shapes, which are not limited herein.
[0059] The gold finger interface 22 can include six interface ends. Referring to the circuit schematic diagram Figure 7 As can be seen, the six pins of the UZ3 represent the six interface ends of the gold finger interface 22, and are the basis for the communication between the circuit module 25 and the SIM card seat. Among them, the six interface ends can include: a power end for connecting a power supply, a reset end for reset signal input, a clock end for clock signal input, a ground end for grounding, a detection end for card insertion detection, and a data transmission end for data transmission. Correspondingly, referring to Figure 6 The side surface of the connecting piece 23 opposite to the plate body 21 is provided with six conductive contact pieces 231 corresponding to the six interface ends of the gold finger interface 22.
[0060] In some embodiments, referring to Figure 6The connecting piece 23 can include a pad 232, and a first PCB 233 and a second PCB 234 connected to opposite sides of the pad 232, respectively.
[0061] The first PCB 233 and the second PCB 234 are double-sided PCBs. The pads on the outward side of the first PCB 233 (i.e., the conductive contact pieces 231) are used to contact the SIM card seat, and the pads on the outward side of the second PCB 234 are used to contact the gold finger interface 22. The pad 232 is provided with a via, and the pads of the first PCB 233 and the second PCB 234 are connected by wires in the via.
[0062] The pad 232 can be a plate-shaped structure made of FR-4 material, and can also be made of other materials that can withstand temperatures above 95°C. The thickness of the pad 232 can be adjusted according to the distance between the gold finger interface 22 and the SIM card seat. Generally, the thickness of the pad 232 is equal to the distance between the gold finger interface 22 and the outer opening of the through hole 11 minus the thickness of the first PCB 233 and the second PCB 234.
[0063] In some embodiments, reference can be made to Figure 8 and Figure 9 The circuit module 25 can include at least one circuit chip 251, which can be provided with a VCC pin for connecting to a power supply, a GND pin for grounding, an IO pin for data transmission, an RST pin for reset signal input, a CLK pin for clock signal input, and an NC pin for card insertion detection. In addition, the circuit chip 251 can also include LA and LB pins for connecting to an antenna provided on the board 21 to perform non-contact communication with the vehicle-mounted unit 200.
[0064] In addition, as shown in Figure 7 The circuit module 25 also includes a resistor R1 and a plurality of capacitors. The resistor R1 is used to generate a detection signal for card insertion, one end of which is connected to the detection end of the gold finger interface 22, and the other end is used to connect to the corresponding contact terminal of the SIM card seat of the vehicle-mounted unit 200. The plurality of capacitors include capacitors C3, C4, C5, C6, and C7, which are ground capacitors and serve as filters or decouplers. Among them, the capacitor C3 is connected in parallel with the capacitor C4, and is connected to the power supply end of the gold finger interface 22, respectively. The capacitor C5 is connected to the reset end of the gold finger interface 22, the capacitor C6 is connected to the clock end of the gold finger interface 22, and the capacitor C7 is connected to the data transmission end of the gold finger interface 22.
[0065] Optionally, the circuit module 25 can include the circuit chip US2 and the circuit chip US3, and a plurality of resistive units for the compatible circuit chip US2 and the circuit chip US3. The connection positions of the plurality of resistive units can refer to the attached Figure 9 In this case, no detailed description is given. It can be understood that the circuit chip US2 and the circuit chip US3 can work cooperatively, and the function of the CPU card can also be realized by configuring one of the circuit chips 251 alone; when one of the circuit chips 251 is configured alone, the plurality of resistive units can be deleted.
[0066] In addition, the attached Figure 1 The utility model also constructs a vehicle-mounted unit 200, the vehicle-mounted unit 200 can be box-like structure, it is equipped with the card slot 201 of the ETC passing card subassembly 100 of above-mentioned insertion, the size of card slot 201 and the size of the shell 1 of ETC passing card subassembly 100 are compatible, so that the at least partial structure of shell 1 can be inserted into card slot 201.
[0067] The card slot 201 is equipped with a SIM card seat, and the contact terminals of the SIM card seat are used to contact the conductive contact pieces 231 of the ETC passing card subassembly 100. It can be understood that, referring to the attached Figure 7 The hollow circle in the figure can represent the connection of the contact terminals and the six interface ends of the gold finger interface 22.
[0068] In addition, the utility model also constructs a vehicle-mounted device 1000, including the vehicle-mounted unit 200 and the ETC passing card subassembly 100 of above-mentioned, the ETC passing card subassembly 100 is used for inserting the vehicle-mounted unit 200. It can be understood that the above embodiment only expresses the preferred implementation of the utility model, and the description is more specific and detailed, but it can not be understood as the limitation of the patent range of the utility model; it should be pointed out that for ordinary skilled person in the art, the above technical features can be freely combined without departing from the concept of the utility model, and several modifications and improvements can be made, which belong to the protection range of the utility model; therefore, the equivalent transformation and modification of the utility model claim range should belong to the coverage range of the utility model claim.
Claims
1. An ETC toll pass assembly characterized by comprising: The application relates to a pass card, which comprises a shell (1) and a pass card (2) accommodated in the shell (1). The pass card (2) comprises a plate body (21), a golden finger interface (22) arranged on the plate body (21) and a connecting piece (23) connected to the golden finger interface (22); the connecting piece (23) protrudes from the surface of the plate body (21), and the side surface of the connecting piece (23) away from the plate body (21) is provided with a conductive contact piece (231) connected to the golden finger interface (22). The side wall of the shell (1) opposite to the golden finger interface (22) is provided with a through hole (11), and the conductive contact piece (231) is arranged in a flush manner with the outer side hole of the through hole (11).
2. The ETC toll pass assembly of claim 1, wherein, The shell (1) is made of a material resistant to a temperature of 95 DEG C or above; and the plate body (21) is a PCB plate. The pass card (2) further comprises a circuit module (25) connected to the plate body (21), and the circuit module (25) is connected to the golden finger interface (22) to communicate with a vehicle-mounted unit.
3. The ETC toll pass assembly of claim 2, wherein, The connecting piece (23) comprises a cushion block (232) and a first PCB plate (233) and a second PCB plate (234) connected to the opposite sides of the cushion block (232) respectively. The first PCB plate (233) and the second PCB plate (234) are double-sided PCB plates, wherein the pads on the outward side of the first PCB plate (233) are the conductive contact piece (231), and the pads on the outward side of the second PCB plate (234) are in contact with the golden finger interface (22). The pads of the first PCB plate (233) and the pads of the second PCB plate (234) are connected through wires arranged in the cushion block (232).
4. The ETC toll pass assembly of claim 3, wherein, The cushion block (232) is a plate-shaped structure made of FR-4 material.
5. The ETC toll transponder assembly of claim 2, wherein, The golden finger interface (22) comprises six interface ends, namely a power supply end for connecting a power supply, a reset end for inputting a reset signal, a clock end for inputting a clock signal, a grounding end for grounding, a detection end for detecting card insertion and a data transmission end for data transmission. The side surface of the connecting piece (23) away from the plate body (21) is provided with six conductive contact pieces (231) corresponding to the six interface ends.
6. The ETC toll transponder assembly of claim 5, wherein, The circuit module (25) comprises at least one circuit chip (251), a plurality of capacitors and a resistor R1 for generating a detection signal. The circuit chip (251) is provided with a VCC pin for connecting a power supply, a GND pin for grounding, an IO pin for data transmission, an RST pin for inputting a reset signal, a CLK pin for inputting a clock signal and an NC pin for detecting card insertion; the VCC pin is connected to the power supply end, the grounding end is connected to the GND pin, the IO pin is connected to the data transmission end, the RST pin is connected to the reset end, the CLK pin is connected to the clock end and the NC pin is connected to the detection end. One end of the resistor R1 is connected to the detection end, and the other end is used for connecting the contact terminal of the SIM card seat of the vehicle-mounted unit; The plurality of capacitors include a ground-connected capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, and a capacitor C7; the other end of each of the capacitor C3 and the capacitor C4 is connected to the power supply end; the other end of the capacitor C5 is connected to the reset end; the other end of the capacitor C6 is connected to the clock end, and the other end of the capacitor C7 is connected to the data transmission end.
7. The ETC toll pass assembly of claim 1, wherein, The shell (1) includes a main body (12) and a cover (13), one side of the main body (12) is provided with an opening, and the inside of the main body (12) forms a containing cavity for accommodating the pass card (2); the cover (13) is arranged at the opening of the main body (12) to close the opening. The main body (12) is provided with a first end for extending into the vehicle-mounted unit (200), and a second end opposite to the first end, and a handle portion (121) is arranged at the second end to facilitate the insertion and extraction of the ETC pass card assembly.
8. The ETC toll card assembly of claim 7, wherein, The shell (1) and the pass card (2) are further provided with a positioning structure (24) to fix the pass card (2) in the containing cavity. The positioning structure (24) includes at least one plug (241) arranged in the containing cavity, and at least one insertion hole (242) arranged on the plate body (21) for the plug (241); the insertion hole (242) and the plug (241) are arranged one by one. The positioning structure (24) includes at least one sleeve (243) arranged in the containing cavity, and at least one insert corresponding to the sleeve (243); the insert is configured to pass through the plate body (21) and be installed in the sleeve (243) to press the plate body (21) at the sleeve (243).
9. An in-vehicle unit, characterized by comprising: The vehicle-mounted unit is provided with a card slot (201) for inserting the ETC pass card assembly of any one of claims 1-8; the size of the card slot (201) is matched with the size of the shell (1) of the ETC pass card assembly; The card slot (201) is further provided with a SIM card seat, and the contact terminal of the SIM card seat is used to contact the conductive contact piece (231) of the ETC pass card assembly.
10. An in-vehicle device characterized by comprising: The ETC pass card assembly of any one of claims 1-8 and the vehicle-mounted unit of claim 9 are included; the ETC pass card assembly is used to be inserted into the vehicle-mounted unit to communicate.