Connector system with assembly detection via radio frequency identification

Abstract

The invention relates to a connector system (1, 2) for assembly detection by radio frequency identification (RFID). The system comprises at least a first connector (1) and a second connector (2) which can be assembled together with the first connector (1). The first connector (1) comprises an RFID circuit (33) comprising an open circuit antenna pattern (35) having at least two electrically separated conductive strips (37, 39). The second connector (2) comprises an electrically conductive member (28) having at least two different electrically conductive arms (48, 50). Each arm (48, 50) is respectively configured to establish electrical contact with one of the conductive strips (37, 39) of the antenna pattern (35) when the connectors (1, 2) are in an assembled position, such that in the assembled position the electrically conductive member (28) electrically closes the antenna pattern (35).

Description

Technical Field

[0001] This invention relates to a connector system that enables the detection of when a connector has been assembled, specifically via radio frequency identification (RFID). It is particularly suitable for electrical connectors used in the automotive, aerospace, and general industrial sectors. Background Technology

[0002] In many industrial sectors, ensuring that electrical connectors are properly assembled is crucial. A common problem is partial assembly: when connectors are not fully connected, they may appear to be in place visually or tactilely. This can lead to contact failures, malfunctions, or defects in production.

[0003] To mitigate this risk, certain mechanical solutions have been implemented, such as snap-fit ​​systems or CPA-type components (CPA stands for "Connector Position Guarantee"). However, these devices have limitations, particularly in stressful or noisy environments, and cannot guarantee or record the actual assembly state.

[0004] In high-power / high-voltage applications (or HP / HV, high-power / high-voltage connectors), a reliable method for verifying connector assemblies is essential, given the increased safety and traceability requirements.

[0005] The solution requires integrating RFID circuitry into the connector system to enable contactless detection. In these known systems, the RFID circuitry is inactive or undetectable as long as the conductive elements do not close the antenna circuit. This closure is only achieved when the connector is engaged, thus automatically signaling that the system is fully assembled.

[0006] However, this approach has several limitations: the electrical contacts within the antenna may be unstable or sensitive to mechanical tolerances and environmental stresses such as vibration. Furthermore, designing such components can be complex, expensive, or difficult to integrate into automated production lines.

[0007] Therefore, it is necessary to improve the RFID system integrated into electrical connectors to make assembly inspection reliable, robust and easy to implement. Summary of the Invention

[0008] The object of this invention is achieved by a connector system having assembly inspection via radio frequency identification (RFID). The system according to the invention can be a connector system for motor vehicles. It can also be used in other industrial sectors requiring reliable assembly inspection, such as: aerospace, rail, automated industrial equipment, high-power or high-voltage electrical equipment, electric vehicle charging systems, and medical applications including critical connections or cabling systems for servers or data centers. The system according to the invention includes at least: a first connector including RFID circuitry comprising an open-circuit antenna pattern comprising at least two electrically separated conductive strips; and a second connector capable of being assembled with the first connector and including a conductive member having at least two distinct conductive arms, each arm of which is configured to establish electrical contact with one of the conductive pads of the antenna pattern when the first and second connectors are in the assembled position, such that in the assembled position, the conductive member of the second connector electrically closes the antenna pattern of the first connector.

[0009] The two distinct conductive arms ensure independent and localized mechanical support on each conductive strip. Therefore, particularly compared to a single conductor strip used to connect the two conductor pads, the closed antenna pattern via two distinct arms ensures a greater degree of tolerance to any vibrations and misalignments. This makes the electrical contact more reliable. Consequently, the robustness of the RFID signal can be improved, including in environments subjected to vibration.

[0010] Furthermore, by distributing the antenna pattern and its closure device across two different connectors, it prevents the RFID circuit from being activated by only one connector. In practice, the antenna pattern is located on the first connector, and the closure device for the antenna pattern is located on the second connector. The RFID circuit can only close when both connectors are assembled. The first connector itself cannot close the circuit. Neither can the second connector itself close the circuit. Therefore, the RFID circuit cannot be activated, even unintentionally, before the connectors are fully assembled. This helps ensure more reliable assembly detection.

[0011] RFID circuits act as contactless identification devices for transmitting information via radio frequency. The antenna of an RFID circuit can be configured to pick up electromagnetic signals emitted by an RFID reader. This signal (often called an interrogation signal) can be used to activate the RFID circuit.

[0012] RFID circuits may include microchips. These microchips may contain identification codes.

[0013] RFID circuitry can be passive. In this case, the RFID circuitry does not include its own power source. The energy utilized by the antenna can be used to power the microchip.

[0014] When the RFID circuit is powered, the microchip can modulate the signal returned to the RFID reader, for example, to send an identification code. The RFID reader can be equipped with a transceiver capable of detecting and analyzing the responses of the RFID circuit within its field area.

[0015] Within the scope of this invention, the closure of the antenna pattern ensures that the RFID circuit is operable and can then be detected by an RFID reader to signal that the connector has been assembled.

[0016] Conductive components can be used as shunts between conductive strips in an antenna pattern. Conductive components can be manufactured as a single piece. They can be made of conductive metals, such as copper alloys or conductive stainless steel. The arms of the conductive component can be flexible. This flexibility allows for elastic deformation during connector assembly.

[0017] According to one embodiment, the arms of the conductive member can be configured to be elastically bent by assembling the first connector with the second connector, such that in the assembled position, the arms of the conductive member apply pressure against the corresponding conductive strips of the antenna pattern. This pressure ensures reliable electrical contact even in harsh environments, particularly in the presence of vibration. The flexibility of the arms allows for compensation for any misalignment or relative movement between the connectors. Furthermore, it helps maintain the closure of the RFID circuitry when the system is subjected to mechanical stresses, such as vibration.

[0018] According to one embodiment, each arm of the conductive member may have a bent or folded sheet-like shape. This shape promotes elastic deformation of the arm during connector assembly. This allows the arm to deform gradually when the connector is engaged. It also allows contact forces to be concentrated on the corresponding conductive strip. The bent or folded geometry helps improve the mechanical stability of the contacts during operation, especially in the presence of dynamic stresses such as vibration.

[0019] According to one embodiment, each arm of the conductive member may include a protruding protrusion, particularly a boss, in the area for contact with one of the conductive strips of the antenna pattern at the assembly location. This protrusion helps to provide a defined contact surface and enhance localized pressure.

[0020] The first connector can be configured to be inserted into the second connector along the insertion direction.

[0021] According to one embodiment, the conductive member can be mounted to the second connector such that an arm of the conductive member protrudes into the interior of the second connector. This arrangement allows the arm to mechanically interact with the first connector during assembly. This allows the arm to elastically deform when the connector is engaged. The conductive member can remain protected within the internal volume of the second connector while performing its closing function.

[0022] According to one embodiment, the conductive member may include a fixing portion, particularly in the form of a plate. An arm of the conductive member can extend from the fixing portion. The fixing portion can be inserted into a receptacle provided in a second connector, particularly in the form of a slot. This configuration allows for the simple, stable, and reproducible mounting of the conductive element. Fixation by insertion into the receptacle (e.g., a slot) provides secure retention while simplifying assembly. The fixing portion can be inserted into the receptacle along the insertion direction.

[0023] According to one embodiment, the retaining portion may include at least one protrusion that forms a mechanical retaining device within the receptacle of the second connector. The protrusion may be configured to engage with an edge of the receptacle or a recess in the receptacle. Once installed, it prevents any unwanted axial movement of the conductive member. It also allows for secure retention without the need for any screws or adhesive.

[0024] According to one embodiment, the RFID circuitry can be arranged on the outer surface of the first connector. This arrangement facilitates the manufacture of the circuitry and its visual or functional inspection. It also allows for a reduction in the internal space required for the connector. Specifically, the first connector may include a housing made of an insulating material (such as molded plastic) on which the RFID circuitry is arranged. The housing may be designed to receive conductive elements, such as connectors, terminals, or electrical conductors. Similarly, the second connector may include a housing made of an insulating material (such as molded plastic), and this housing is designed to receive mating conductive elements, such as connectors, terminals, or electrical conductors.

[0025] According to one embodiment, RFID circuitry can be manufactured by etching, chemical etching, conductive ink deposition, inkjet printing, or via conductive films (particularly self-adhesive conductive films). These methods enable the manufacture of antennas at low cost and with high geometric precision. These methods are compatible with plastic materials, particularly those used for the housing design of the first connector. The use of RFID tags in the form of self-adhesive films or paper ensures rapid integration without modifying molds or any specific overmolding. It also allows for tag application at the end of the production line or as a retrofit. This type of support is lightweight and space-saving.

[0026] According to one embodiment, the first connector and the second connector may each include a mechanical locking device, which can be arranged such that the engagement of the mechanical locking device can be performed without any physical contact between the mechanical locking device and the conductive member, and the conductive member can be mechanically separated from the locking device. This mechanical independence prevents any interference between the locking and closing functions of the RFID circuit. It also reduces the risk of erroneous detection associated with incorrect operation.

[0027] According to one embodiment, the locking device is integrally formed with the connector, and particularly with the connector's housing, by molding, particularly injection molding. This integration reduces the number of parts and simplifies assembly. It improves the robustness of the locking system and reduces manufacturing costs.

[0028] According to one embodiment, the system may be characterized by the absence of any Connection Position Guarantee (CPA) elements. This absence eliminates the possibility of any removable parts being lost or incorrectly installed. It simplifies connector design and prevents any assembly errors associated with CPAs in partial engagement.

[0029] The object of the present invention is also achieved by a method for detecting assembly between a first connector and a second connector in a connector system having assembly detection via radio frequency identification (RFID). The method includes the following steps:

[0030] a) Provide a first connector including an RFID circuit, the RFID circuit including an open-circuit antenna pattern, the antenna pattern including at least two electrically isolated conductive strips;

[0031] b) Provide a second connector, the second connector including a conductive member, the conductive member including at least two distinct conductive arms.

[0032] c) Assemble the first connector and the second connector such that the arms of the conductive member respectively establish electrical contact with the conductive strip;

[0033] d) The RFID circuit is activated in response to an interrogation signal emitted by the RFID reader, and a response detectable by the RFID reader is transmitted via the RFID circuit, the response indicating that the connector is assembled.

[0034] The RFID circuit can only be activated according to step (d) when both connectors are effectively connected. The antenna pattern remains open and the RFID circuit remains inactive until contact is established between the arm of the conductive member and the conductive strip.

[0035] Therefore, this process allows for remote verification of whether the connector system has been correctly assembled. It can be implemented sequentially to control the assembly status of multiple connectors, for example, at the output of a production line.

[0036] Assembly step (c) can be performed without any mechanical locking device (e.g., a ramp) interacting with the conductive components. No contact is required between these components. For example, the locking ramp attached to the first connector can be arranged not to contact the conductive components, including during assembly. In the assembled position, the arm of the conductive component can be positioned on either side of the ramp without any physical contact or mechanical interference. In other words, the conductive component can be mechanically separated from the locking device. Attached Figure Description

[0037] The accompanying drawings, which are incorporated in and form the entirety of the specification, illustrate several embodiments of the invention. These drawings, along with their description, serve to explain the principles of the invention. The drawings are intended to illustrate only preferred and alternative examples in which embodiments of the invention can be made and used, and should not be construed as limiting the invention to the embodiments shown and described.

[0038] Furthermore, several aspects of the embodiments may be constituted individually or in different combinations of the solutions according to the invention. Therefore, the embodiments described below can be considered individually or in any combination. Other features and advantages will become apparent from the following more detailed description, which follows various embodiments of the invention as illustrated in the included drawings, wherein similar reference numerals denote similar elements.

[0039] Figure 1 An exploded view of a first connector, including an RFID circuit comprising conductive components, is schematically shown.

[0040] Figure 2 An exploded view of a second connector, including conductive components, is shown schematically.

[0041] Figure 3 The conductive components are shown only schematically;

[0042] Figure 4 A top view of a connector system with assembly detection via RFID in an unassembled position is shown.

[0043] Figure 5 A top view of the system in its assembled position is also shown;

[0044] Figure 6 A cross-sectional view of the system in its unassembled position is shown;

[0045] Figure 7 Another cross-sectional view of the system in a partially assembled position is shown;

[0046] Figure 8 A cross-sectional view of the system in its assembled position is shown. Detailed Implementation

[0047] First connector

[0048] Figure 1 An exploded view of the first connector 1 is schematically shown. The first connector 1 includes a housing 3. The housing 3 may be made of an electrically insulating material, such as molded plastic, particularly by injection molding. The housing 3 is parallel to... Figure 1 The longitudinal axis 100, defined by the axis Y of the Cartesian reference frame shown, extends longitudinally between the first open end 5 and the second open end 7. In the example shown, the housing 3 has a substantially rectangular cross-section. In a variant embodiment not shown, the housing 3 may have another cross-sectional shape, such as an elliptical or circular cross-section. The first open end 5 is provided with a partial cut 55 extending longitudinally along the axis Y. This cut 55 is arranged on a portion of the cross-section of the housing 3 shown, approximately halfway across it.

[0049] The first connector 1 is configured to receive electrical contact elements (not shown), particularly pins or terminals, especially flat pins or terminals, which can be inserted through the second open end 7 of the housing 3. Figure 1 In the example shown, the first connector 1 includes a clip retainer 9 (or tab retainer 9). The clip retainer 9 is an internal structure of the housing 3 designed to receive and retain electrical contact elements (not shown) within the housing 3. For this purpose, the clip retainer 9 includes longitudinally extending separating portions 11 of separating contacts and locking arms 13. Each of these locking arms 13 includes a through-hole 15. Each locking arm 13 also includes retaining devices 17 such that they can be retained within the housing 3 of the first connector 1. In this example, these retaining devices 17 include a first protrusion 19 in the form of a ramp and a second protrusion 21 forming an abutment portion. Thus, a locking recess 23 is defined between these two protrusions 19, 21. These retaining devices 17 allow the clip retainer 9 to be retained within the housing 3. It should be noted that... Figure 1 An exploded view is shown: In the assembly configuration of the first connector 1, the clip retainer 9 is arranged within the housing 3. The clip retainer 9 can be made of an electrically insulating material, such as molded plastic, particularly by injection molding.

[0050] Furthermore, the housing 3 includes a mechanical locking device 27 on one of its outer surfaces 25. Figure 1In the example shown, the locking device 27 includes a protrusion 29 extending substantially perpendicular to the face 25. The protrusion 29 takes the form of a ramp 31. The ramp 31 is integrally formed with the housing 3, particularly by molding. The ramp 31 has a thickness, indicated by reference numeral E, adapted to mate with a mating locking device of a connector (hereinafter referred to as the "second connector") to be assembled with the first connector. The ramp 31 includes three bevels 331, 332, and 333, arranged in this order along a direction from the first opening end 5 to the second opening end 7. The bevels 331, 332, and 333... Figure 7 and Figure 8 More clearly, the first inclined surface 331 and the third inclined surface 333 protrude from the outer surface 25 of the housing 3. The second inclined surface 332 connects the first inclined surface 331 to the third inclined surface 333. The first inclined surface 331 is inclined relative to the surface 25. The first inclined surface 331 has an increasing inclination in the direction from the first opening end 5 toward the second opening end 7. The third inclined surface 333 is also inclined relative to the surface 25, but the inclination is less than that of the first inclined surface 331. As an example, the third inclined surface 333 forms an angle A equal to or less than 90° relative to the surface 25 (in Figure 6 (as indicated in the middle), while the first inclined plane 331 forms an angle B greater than 90° (in the middle). Figure 6 (China's instructions).

[0051] The first connector 1 includes an RFID circuit 33. The RFID circuit 33 is configured to be disposed on the outer surface of the housing 3 of the first connector 1. Figure 1 In the example shown, the RFID circuit 33 is arranged on the same outer surface 25 as the outer surface including the locking device 27. The RFID circuit 33 is located between the locking device 27 and the second opening 7.

[0052] The RFID circuit 33 includes an antenna pattern 35. The antenna pattern 35 is referred to as "open-circuit," meaning it comprises two conductive strips 37 and 39 electrically separated from each other. In the example shown, each conductive strip 37, 39 has a substantially elongated, particularly rectangular, shape. The RFID circuit 33 also includes a microchip 41 connected to the antenna pattern 35. Again, it must be noted that... Figure 1 An exploded view is shown: microchip 41 is not shown as being in direct contact with antenna pattern 35, although microchip 41 is effectively connected to antenna pattern 35 in the assembly configuration of the first connector 1.

[0053] In the example shown, the RFID circuit 33 includes an RFID tag 43. The RFID tag 43 may include a flexible support 45, for example, made of paper, on which a microchip 41 and an antenna pattern 35 are printed or arranged. The support 45 may be self-adhesive to facilitate fixing the RFID circuit 33 to the outer surface 25 of the housing 3, particularly during automated installation operations at the end of the production line. The RFID tag 43 may also be composed of a polymer film, such as polyester, and may contain adhesive on one of its surfaces. This construction offers the advantages of being lightweight, space-saving, and easy to implement without modifying the mold of the housing 3 of the connector 1.

[0054] Second connector

[0055] Figure 2 An exploded view of the second connector 2 is schematically shown. The second connector 2 can be assembled with the first connector 1.

[0056] The second connector 2 includes a housing 4. The housing 4 can be made of an electrically insulating material, such as molded plastic, particularly by injection molding. The housing 4 is parallel to... Figure 2 The longitudinal axis 200, defined by the axis Y of the Cartesian reference frame shown, extends longitudinally between the first open end 4 and the second open end 8. In the example shown, the housing 4 has a substantially rectangular cross-section. In variant embodiments not shown, the housing 4 may have another cross-sectional shape, such as an elliptical or circular cross-section.

[0057] The second connector 2 is configured to receive electrical contact elements (not shown), such as pins or terminals, particularly flat pins or terminals, which can be inserted through the second open end 8 of the housing 4. Figure 2 In the example shown, the second connector 2 includes a clip retainer 10 (or tab retainer 10). The clip retainer 10 is an internal structure of the housing 4 for receiving and retaining electrical contact elements (not shown). For this purpose, the clip retainer 10 includes a longitudinally extending separating portion 12 of separating contacts and locking arms 14. The separating portion 12 includes three separate receiving portions 116 for receiving electrical contact elements (not shown) respectively. Each locking arm 14 includes a through hole 16. Each locking arm 14 also includes retaining devices 18 such that they can be retained within the housing 4 of the second connector 2. In this example, these retaining devices 18 include a first protrusion 20 in the form of a ramp and a second protrusion 22 forming an abutment portion. Thus, a locking recess 24 is defined between the two protrusions 20, 22. These retaining devices 18 allow the clip retainer 10 to be retained within the housing 4.

[0058] The housing 4 of the second connector 2 includes a receiving body 26 for receiving the conductive member 28. See below for details. Figure 3The conductive member 28 is described in detail. The receiving body 26 and the rest of the housing 4 are made as a single piece. The receiving body 26 defines a receiving portion 30 into which the conductive member 28 can be inserted. Figure 7 As shown in the cross-sectional view, the receiving portion 30 includes a groove 32. The groove 32 has a closed inner end 34.

[0059] from Figure 7 As can be seen, the receiving body 26 also includes a central pad 36. The pad 36 has a substantially rectangular cross-section, particularly in the planes (XZ) and (XY). The pad 36 extends from the receiving portion 30 toward the interior of the housing 4 according to a height H. The height H is defined along the axis Z of the Cartesian reference system. The dimensions of the pad 36 are designed such that its width L, measured along the axis X of the Cartesian reference system, substantially corresponds to the spacing between the two arms of the conductive member 28. Therefore, when the conductive member 28 is mounted to the second connector 2, each arm of the conductive member 28 can extend to either side of the pad 36 without mechanically interacting with it. (See below for reference...) Figure 3 The arm of conductive member 28 is described in detail.

[0060] A cover 38 is disposed at the first opening end 6 of the housing 4, above the receiving body 26. The cover 38 and housing 4 are made as a single piece and extend over the receiving portion 30 to protect the entrance of the receiving portion 30. Therefore, any accidental contact or unintentional interaction with the conductive member 28 housed in the receiving portion 30 can be prevented.

[0061] In addition, such as Figure 7 As shown, a retaining hook 40 is defined between a pad 36 and a shoulder 42 protruding from a receiving body 26. The shoulder 42 extends toward the interior of the housing 4 in the direction of the second opening end 8. The retaining hook 40 forms an angle C between the pad 36 and the shoulder 42. Angle C is approximately complementary to an angle D defined between the second ramp 332 and the third ramp 333 of the ramp 31 of the first connector. Therefore, in the assembled position of connectors 1 and 2, the ramp 31 of the first connector 1 can abut against the retaining hook 40 of the second connector 2 along the insertion direction I. This interaction ensures axial mechanical locking between the first connector 1 and the second connector 2.

[0062] However, it must be noted that the present invention is not limited to the locking structure described by way of example in this case. Mechanical locking devices may take other forms or constructions, as long as they are able to retain and lock the assembled connectors.

[0063] In the example shown, the second connector 2 is a sealed connector. The second connector 2 includes at least one sealing joint 44. The sealing joint 44 is disposed inside the housing 4. Similarly, the first connector 1 can be a sealed connector and includes one or more sealing joints. However, the invention is not limited to these types of connectors and can also be implemented with non-sealed connectors or connectors of any different construction.

[0064] The following is specifically about Figure 3 Describes the conductive member 28 of the second connector 2. The conductive member 28 is constructed from a single metal component, for example, obtained by cutting and folding. The conductive member 28 includes a fixing portion 46, which, in the illustrated example, is shaped as a flat plate. The conductive member 28 also includes at least two distinct conductive arms 48, 50. These arms 48, 50 extend from the fixing portion 46 so as to unfold toward the interior of the second connector 2 when the conductive member 28 is mounted in the receiving portion 30 of the housing 4, as... Figure 6 and Figure 8 The cross-sectional view is shown.

[0065] Arms 48 and 50 are spaced apart by a distance G, as shown below. Figure 3 As shown. Figure 4 As shown, the width G is slightly larger than the width L of the central pad 36. Therefore, during the insertion of the conductive member 28 into the receiving portion 30, the arms 48 and 50 can be positioned on either side of the central pad 36.

[0066] Arms 48 and 50 are flexible. Each arm 48 and 50 has a folded, sheet-like shape, specifically in the form of the letter "U" or an inverted arc. In the example shown, arms 48 and 50 are folded such that their respective free ends 52 and 54 are oriented toward the fixed portion 46. This folded geometry provides arms 48 and 50 with elastic deformability, allowing them to bend during the assembly of the first connector 1 and the second connector 2, while applying a return force in the direction of the conductive pads 37 and 39 of the antenna pattern 35. Therefore, arms 48 and 50 can accommodate alignment tolerances while ensuring reliable contact. Furthermore, arms 48 and 50 enable stable contact to be maintained even when connectors 1 and 2 are subjected to mechanical stresses, such as vibrations or shocks typical in automotive or industrial environments.

[0067] Each of the free ends 52, 54 includes contact areas 56, 58. At this location, each arm 48, 50 is provided with a protruding protrusion 62, specifically a boss 62, designed to improve electrical contact with the corresponding conductive strips 37, 39 of the antenna pattern 35. The boss 62 can be formed by stamping, which creates a cavity 64 on the opposite surface of the boss 62.

[0068] The retaining portion 46 of the conductive member 28 includes protrusions 66, 68 forming mechanical retaining devices. These protrusions 66, 68 extend in the plane of the plate defining the retaining portion 46 and beyond the lateral boundaries defined by the arms 48, 50. These protrusions 66, 68 are configured to mate with the sidewalls of the receiving portion 30 of the second connector 2 to retain the conductive member 28 in place after insertion.

[0069] The fixing portion 46 of the conductive member 28 is inserted along the insertion direction I until it abuts against the receiving portion 30 defined in the housing 4 of the second connector 2, particularly against the groove 32, and particularly until it contacts the closed inner end 34.

[0070] The insertion direction I of the conductive component 28 in the housing 4 is the same as the insertion direction I of the first connector 1 in the second connector 2.

[0071] If necessary, the conductive component 28 can be easily replaced without modifying the housing 4 or other parts of the second connector 2.

[0072] The conductive member 28 is mounted in the second connector 2 such that the arms 48, 50 protrude into the interior of the housing 4 of the second connector 2. Therefore, the arms 48, 50 remain protected and are able to contact the conductive strips 37, 39 during assembly with the first connector 1, as will be described in detail in the following paragraphs.

[0073] Connector System

[0074] Figure 4 A top view of the system formed by the previously described connectors 1 and 2 in their unassembled position is shown in part. Figure 5 The same system in its assembly position is shown.

[0075] Figure 6 , Figure 7 and Figure 8 Cross-sectional views along different planes are presented, illustrating the assembly kinematics of the system. More specifically, Figure 6 The system is shown in its unassembled position. Figure 7 The assembly locations along different cross-sections are shown, and Figure 8 It shows the path along with Figure 6 The system uses the same cross-section as the system in its assembly position.

[0076] The first connector 1 is configured to be inserted into the second connector 2 at the first opening end 6 of the housing 4 along the insertion direction I. Figure 4In the so-called "unassembled" position shown, the first connector 1 is only partially inserted into the second connector 2. In this unassembled position, the housing 3 of the first connector 1 is not yet fully engaged to allow its locking device 27 (specifically the ramp 31) to contact the second connector 2. However, Figure 4 The diagram shows that the ramp 31 is aligned with the central pad 36 of the receiving body 26 of the second connector 2. The thickness E of the ramp 31 of the first connector 1 is substantially equal to, and in particular identical to, the width L of the central pad 36 of the second connector 2. This dimensional alignment ensures stable support between the ramp 31 and the pad 36, which helps to stabilize the engagement of connectors 1 and 2 and properly ensures that they are inserted correctly.

[0077] Furthermore, in this unassembled position, the conductive strips 37 and 39 of the antenna pattern 35 are electrically isolated from each other, keeping the RFID circuit 33 disconnected and inactive. This means that it is impossible to activate the RFID circuit 33 before connectors 1 and 2 are fully assembled.

[0078] In non-assembly locations, such as Figure 6 As shown in the cross-sectional view, the arms 48 and 50 of the conductive member 28 are elastically bent due to contact with the outer surface 25 of the housing 3 of the first connector 1. The contact area 56 of arm 48 (correspondingly, the contact area 58 of arm 50, in...) Figure 6 (Not visible in the center) The support abuts against the outer surface 25 of the housing 3 of the first connector 1. This support makes contact between the conductive member 28 and the first connector 1, outside the conductive strips 37 and 39 of the antenna pattern 35. Therefore, in such a way... Figure 4 and Figure 6 The first connector 1 shown can be partially inserted into the unassembled position of the second connector 2, and no electrical contact is established between the conductive member 28 and the conductive strips 37, 39 of the antenna pattern 35.

[0079] like Figure 7 As shown, as the first connector 1 continues to insert the second connector 2 along the insertion direction I, the ramp 331 of the ramp 31 gradually raises the central pad 36 of the second connector 2. This raising is then guided by the ramp 332 of the ramp 31 until the central pad 36 reaches the ramp 333 of the ramp 11, where the retaining hook 40 of the housing 4 interlocks with the protrusion 29 of the housing 3 forming the ramp 31. This interlocking is made possible by the complementary nature of angle C (of the retaining hook 40) and angle D (formed between ramps 332 and 333). This interlocking achieves axial locking of the connector systems 1 and 2, i.e., in the direction opposite to the insertion direction I. This locking is performed without any physical contact or mechanical interaction with the conductive member 28. Therefore, the arms 48 and 50 of the conductive member 28 are not stressed during this operation. This results in a mechanical disengagement between the locking mechanism and the RFID detection.

[0080] When the assembly position is reached, such as Figure 5 As shown in the top view, each arm 48, 50 of the conductive member 28 then makes electrical contact with one of the conductive strips 37, 39 of the antenna pattern 35, respectively. Therefore, the conductive element 28 ensures that the antenna pattern 35 is electrically closed, allowing the RFID circuit 33 to be activated. (As shown in...) Figure 8 As can be seen in the cross-sectional view, the contact areas 56, 58 of the conductive member 28 are subjected to pressure via the boss 62 against the corresponding conductive strips 37, 39 of the antenna pattern 35, which generates a force F along the axis Z pointing inward toward the interior of the housing 4.

[0081] Therefore, the construction of the conductive member 28 ensures reliable contact, including in the presence of vibration or mechanical gaps, and in particular, because the flexible arms 48, 50 ensure that the RFID circuit 33 remains closed, thus making RFID detection reliable.

[0082] Once the antenna pattern 35 is closed by the conductive member 28, the RFID circuit 33 becomes capable of interacting with an external RFID reader (not shown). This RFID reader can transmit interrogation signals, generating an electromagnetic field within the environment of connector systems 1 and 2.

[0083] When connectors 1 and 2 are in the assembled position, arms 48 and 50 of conductive member 28 establish corresponding electrical contacts with conductive pads 37 and 39, thereby electrically closing antenna pattern 35. In this closed configuration, antenna pattern 35 can pick up electromagnetic fields emitted by the RFID reader. The energy received thereby allows activation of microchip 41 electrically connected to pattern 35. Once activated, microchip 41 transmits an coded signal via antenna pattern 35. This signal is then picked up by the RFID reader, allowing remote confirmation that connectors 1 and 2 are correctly assembled.

[0084] Conversely, if connectors 1 and 2 are not in the assembled position, for example, in the case of incomplete assembly or a failure in the contact between arms 48, 50 and conductive pads 37, 39, antenna pattern 35 remains open. In this open-circuit configuration, microchip 41 cannot be activated, and no signal is sent to the RFID reader. This prevents any erroneous detection of an assembled state.

[0085] Therefore, connector systems 1 and 2, along with the associated inspection methods, enable reliable and non-contact verification of assembly status. This inspection can be implemented at the end of the production line for quality control, or integrated into embedded systems in industrial, automotive, or aerospace environments to ensure traceable and secure connections.

[0086] List of reference numerals in the attached diagram:

[0087] 1: First connector

[0088] 2: Second connector

[0089] 3: Housing of the first connector

[0090] 4: Housing of the second connector

[0091] 5, 6: The first opening end of the outer shell

[0092] 7, 8: The second opening end of the outer shell

[0093] 9, 10: Clip retainer (or tab retainer)

[0094] 11, 12: Contact separation section of the clamp retainer

[0095] 13, 14: Locking arms of the clip retainer

[0096] 15, 16: Through holes for the locking arm

[0097] 17, 18: Retaining device for locking arm

[0098] 19, 20: The first protrusion in the form of a ramp

[0099] 21, 22: The second protrusion forming the abutment portion

[0100] 23, 24: Locking notch

[0101] 25: Outer surface of casing 3

[0102] 26: Receiving body for conductive components

[0103] 27: Mechanical locking device for the first connector

[0104] 28: Conductive components

[0105] 29: Protrusion

[0106] 30: Receiving part for conductive components

[0107] 31: Slope

[0108] 32: The groove of the receiving part

[0109] 33: RFID circuit

[0110] 34: The closed inner end of the groove

[0111] 35: Antenna pattern

[0112] 36: Central Pad

[0113] 37, 39: Conductive strips in the antenna pattern

[0114] 38: Protective cover

[0115] 40: Keep hook

[0116] 41: Microchip for RFID circuits

[0117] 42: Shoulders

[0118] 43: RFID tags

[0119] 44: Sealed joint

[0120] 45: Flexible support component

[0121] 46: Fixed part of conductive component

[0122] 48, 50: Arms of conductive components

[0123] 52, 54: Free ends of the arm

[0124] 55: Incision

[0125] 56, 58: Contact area of ​​the arm

[0126] 60: Contact surface of the arm

[0127] 62: convex protrusion (a protruding bump)

[0128] 64: Cavity opposite to the boss

[0129] 66, 68: Mechanically retains protrusions

[0130] 100: The longitudinal axis of the system

[0131] 331, 332, 333: The slope of a ramp

[0132] A, B, C, D: Angles

[0133] E: Slope thickness

[0134] G: Width between the arms of the conductive component

[0135] H: Height of the central pad

[0136] I: Insertion direction

[0137] L: Width of the central pad

Claims

1. A connector system (1, 2) with assembly inspection via radio frequency identification (RFID), comprising at least: The first connector (1) includes an RFID circuit (33) including an open-circuit antenna pattern (35) including at least two electrically separated conductive strips (37, 39). The second connector (2) is capable of being assembled with the first connector (1) and includes a conductive member (28). The conductive member (28) has at least two different conductive arms (48, 50), and each arm (48, 50) of the conductive member (28) is configured to establish electrical contact with one of the conductive pads (37, 39) of the antenna pattern (35) when the first connector (1) and the second connector (2) are in the assembled position. In the assembled position, the conductive member (28) of the second connector (2) electrically closes the antenna pattern (35) of the first connector (1).

2. The system according to claim 1, wherein, The arms (48, 50) of the conductive member (28) are respectively configured to be elastically bent by the assembly of the first connector (1) and the second connector (2), such that in the assembled position, the arms (48, 50) of the conductive member (28) apply pressure against the corresponding conductive strips (37, 39) of the antenna pattern (35).

3. The system according to claim 1 or 2, wherein, Each arm (48, 50) of the conductive member (28) has a bent or folded sheet shape.

4. The system according to any one of the preceding claims, wherein, Each arm (48, 50) of the conductive member (28) includes a protruding protrusion, particularly a boss, at a contact area (56, 58) for contacting one of the conductive strips (37, 39) of the antenna pattern (35) in the assembled position.

5. The system according to any one of the preceding claims, wherein, The conductive member (28) is mounted to the second connector (2) such that the arms (48, 50) of the conductive member (28) protrude into the interior of the second connector (2).

6. The system according to any one of the preceding claims, wherein, The conductive member (28) includes a fixing portion (46), which is specifically in the form of a plate. The arms (48, 50) of the conductive member (28) extend from the fixing part (46), and The fixing part (46) is inserted into the receiving part (30) provided in the second connector (2), the receiving part being in the form of a groove (32).

7. The system according to claim 6, wherein, The fixing portion (46) includes at least one protrusion (66, 68) forming a mechanical retaining device in the receiving portion (30) of the second connector (2).

8. The system according to any one of the preceding claims, wherein, The RFID circuit (33) is arranged on the outer surface (25) of the first connector (1).

9. The system according to any one of the preceding claims, wherein, The RFID circuit (33) is manufactured by etching, chemical etching, conductive ink deposition, inkjet printing or by a conductive film, especially by a self-adhesive conductive film.

10. The system according to any one of the preceding claims, wherein, The first connector (1) and the second connector (2) each include mechanical locking devices (27, 40), which are arranged such that, The connection of the mechanical locking device (27, 40) is performed without any physical contact between the mechanical locking device (27, 40) and the conductive member (28).

11. A method for detecting an assembly between a first connector (1) and a second connector (2) in a connector system having assembly detection via radio frequency identification (RFID), the method comprising the steps of: a) Provide a first connector (1) including an RFID circuit (33) including an open-circuit antenna pattern (35) including at least two electrically separated conductive strips (37, 39). b) Provide a second connector (2) including a conductive member (28) comprising at least two different conductive arms (48, 50). c) Assemble the first connector (1) and the second connector (2) such that the arms (48, 50) of the conductive member (28) make electrical contact with the conductive strips (37, 39) respectively; d) The RFID circuit (33) is activated in response to an interrogation signal emitted by the RFID reader, and a response that can be detected by the RFID reader is sent via the RFID circuit (33), the response indicating that the connectors (1, 2) are assembled.

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