Connector assembly

Abstract

This application relates to a connector assembly, including a first connector and a second connector. The first connector includes a limiting portion connected to a first housing and a position detection element connected to the first housing. When the second housing is in a locked position, the limiting portion forms a stop engagement with a latching member in a free position. The position detection element is triggered by a locking member in a first position and is in a first electrical state. When the locking member is in a second position, the position detection element is not triggered and is in a second electrical state. When the latching member is in a free position and the locking member is in the first position, a stop engagement is formed between the latching member and the second housing through the locking member. Since the load current stops when the second power terminal separates from the first power terminal, no arc discharge occurs when the first power terminal separates from the second power terminal, thereby preventing the power terminal from melting or vaporizing and preventing the insulating material around the power terminal from carbonizing and decomposing.

Description

Technical Field

[0001] This application relates to the field of electrical connection device technology, and in particular to a connector assembly. Background Technology

[0002] Connector assemblies are devices used to enable electrical connections between different devices. The application of connector assemblies improves the efficiency of electrical connections between different devices and is currently widely used in the automotive, communications, consumer electronics, data processing, and industrial machinery industries.

[0003] A connector assembly typically includes two connectors that enable electrical connection. One connector serves as a socket, fixed to a device, panel, or circuit board. The other connector serves as a plug, connecting to one end of a cable.

[0004] The connector has internal power terminals. When the two connectors are mated, they form a locking engagement through a locking structure, creating a stable conductive contact between the power terminals. At this point, one connector can transfer load current to the other.

[0005] However, when load current is being transferred between the two connectors, the two connectors are in a free-disconnecting state when the locking mechanism unlocks, and a large current still flows through the power terminals of the two connectors before separation. In the instant after the power terminals separate, an arc discharge occurs between the power terminals due to the inductance in the circuit. This arc discharge may cause the power terminals to melt or vaporize, resulting in pits or burrs on the surface of the power terminals, which may cause poor contact problems in subsequent uses. Utility Model Content

[0006] Based on this, the present invention provides a connector assembly that can solve or at least alleviate the above-mentioned technical problems.

[0007] This utility model provides a connector assembly, including:

[0008] A first connector includes a first housing, a limiting portion connected to the first housing, and a position detection element connected to the first housing, the position detection element having a first electrical state and a second electrical state; and

[0009] The second connector includes a second housing, a snap-fit ​​member rotatably connected to the second housing, and a locking member slidably connected to the snap-fit ​​member. The second housing has a locked position and an unlocked position relative to the first housing. The snap-fit ​​member has a free position and an operating position relative to the second housing. The locking member has a first position and a second position relative to the snap-fit ​​member. The first position is located downstream of the second position along the insertion direction. When the second housing is in the locked position, the limiting part forms a stop engagement with the snap-fit ​​member in the free position. The position detection member is triggered by the locking member in the first position and is in a first electrical state. When the locking member is in the second position, the position detection member is not triggered and is in a second electrical state. When the snap-fit ​​member is in the free position and the locking member is in the first position, the snap-fit ​​member and the second housing form a stop engagement through the locking member.

[0010] Based on the switching of the position detection element from the first electrical state to the second electrical state, the control module confirms that the user needs to separate the first connector from the second connector. Before the second housing leaves the locked position, the control module uses a corresponding switching device to stop the load current. Since the load current has stopped when the second power terminal separates from the first power terminal, no arc discharge will occur when the first power terminal separates from the second power terminal, thereby preventing the power terminal from melting or vaporizing, and preventing the insulation material around the power terminal from carbonizing and decomposing.

[0011] In one embodiment, a restoring force is formed between the locking member and the latching member, which can drive the locking member to slide in a direction from the second position to the first position.

[0012] In one embodiment, the second connector further includes a first elastic member; the snap-fit ​​member has a first abutting portion abutting against one end of the first elastic member; the locking member has a second abutting portion abutting against the other end of the first elastic member; the direction from the first abutting portion to the second abutting portion corresponds to the insertion direction.

[0013] In one embodiment, the locking member has a first force-applying surface and a second force-applying surface; the orientation of the first force-applying surface corresponds to the direction from the second position to the first position; the orientation of the second force-applying surface corresponds to the direction perpendicular to the sliding direction of the locking member; the first force-applying surface and the second force-applying surface are arranged adjacent to each other, or the gap between the first force-applying surface and the second force-applying surface is less than a preset distance value.

[0014] In one embodiment, the position detection element is provided with an active trigger end; when the second housing is in the locked position and the locking element is in the first position, the locking element abuts against the active trigger end.

[0015] In one embodiment, when the second housing is in the locked position, the latching member is spaced apart from the active trigger end along the insertion direction.

[0016] In one embodiment, the second housing is provided with a first stop surface, and the locking member is provided with a second stop surface; when the locking member is in a first position, the first stop surface and the second stop surface are at least partially opposite to each other, and the relative direction between the first stop surface and the second stop surface corresponds to a direction perpendicular to the sliding direction of the locking member.

[0017] In one embodiment, the second connector further includes a second elastic member; the second housing has a flange portion; the first stop surface is disposed at the free end of the flange portion; one end of the second elastic member is inserted into the flange portion, and the other end abuts against the latching member; the locking member has a first through groove; the second stop surface is disposed adjacent to the edge of the first through groove; when the locking member is in the second position and the latching member is in the operating position, the flange portion is inserted into the first through groove; the locking member includes a force-applying portion and a second abutting portion connected to the force-applying portion, the second abutting portion is disposed on the side of the force-applying portion close to the latching member, the second abutting portion has a first working surface, the orientation of the first working surface is opposite to the force-applying portion; when the latching member is in the free position and the locking member is in the first position, the first working surface is disposed opposite to the second housing and forms a stop fit; when the locking member is in the second position, the first working surface is disposed opposite to the latching member.

[0018] In one embodiment, the fastener includes a pivot portion, a guide portion, and a fastening portion; the guide portion is connected between the pivot portion and the fastening portion; the pivot portion is rotatably connected to the second housing; the locking member is slidably sleeved on the outside of the guide portion; when the second housing is in the locked position and the fastener is in the free position, the limiting portion and the fastening portion form a stop engagement.

[0019] This utility model provides a connector assembly, including:

[0020] A first connector includes a first housing, a limiting portion connected to the first housing, and a position detection element connected to the first housing, the position detection element having a first electrical state and a second electrical state; and

[0021] The second connector includes a second housing, a snap-fit ​​member rotatably connected to the second housing, and a locking member slidably connected to the second housing. The second housing has a locked position and an unlocked position relative to the first housing. The snap-fit ​​member has a free position and an operating position relative to the second housing. The locking member has a first position and a second position relative to the second housing. The first position is located downstream of the second position along the insertion direction. When the second housing is in the locked position, the limiting part forms a stop engagement with the snap-fit ​​member in the free position. The position detection member is triggered by the locking member in the first position and is in a first electrical state. When the locking member is in the second position, the position detection member is not triggered and is in a second electrical state. When the locking member is in the first position and the snap-fit ​​member is in the free position, a stop engagement is formed between the snap-fit ​​member and the locking member. Attached Figure Description

[0022] Figure 1 This is a perspective view of a connector assembly according to an embodiment of this application.

[0023] Figure 2 for Figure 1 An exploded view of the connector assembly is shown.

[0024] Figure 3 for Figure 2 A partially exploded view of the first connector in the connector assembly shown.

[0025] Figure 4 for Figure 2 A partially exploded view of the second connector in the connector assembly shown.

[0026] Figure 5a for Figure 4 A three-dimensional schematic diagram of the locking element in the second connector shown.

[0027] Figure 5b for Figure 4 A perspective sectional view of the locking element in the second connector shown.

[0028] Figure 6 for Figure 4 A three-dimensional schematic diagram of the snap-fit ​​element in the second connector shown.

[0029] Figure 7 for Figure 1 The three-dimensional sectional view of the connector assembly shown indicates that the second housing is in the locked position, the snap fastener is in the free position, and the locking member is in the first position.

[0030] Figure 8 for Figure 7 The connector assembly shown is a perspective sectional view in another location.

[0031] Figure 9a for Figure 7 The connector assembly shown is a perspective sectional view in another state, with the second housing in the locked position, the snap fastener in the free position, and the locking member in the second position.

[0032] Figure 9b for Figure 9a The connector assembly shown is a perspective sectional view in another location.

[0033] Figure 10a for Figure 7 The connector assembly shown is a perspective sectional view in another state, with the second housing in the locked position, the snap fastener in the operating position, and the locking member in the second position.

[0034] Figure 10b for Figure 10a The connector assembly shown is a perspective sectional view in another location.

[0035] Figure 11a This is a perspective view of a locking element in a connector assembly according to another embodiment of this application.

[0036] Figure 11b for Figure 11a The shown is a three-dimensional sectional view of the locking component.

[0037] Figure 12a This is a perspective sectional view of a connector assembly according to another embodiment of this application, with the second housing in the locked position, the snap fastener in the free position, and the locking member in the second position.

[0038] Figure 12b for Figure 11a The connector assembly shown is a perspective sectional view in another state, with the second housing in the locked position, the snap fastener in the operating position, and the locking member in the second position.

[0039] Reference numerals: 100, connector assembly; 20, first connector; 21, first housing; 211, guide groove; 22, first power terminal; 23, first insulating member; 24, first signal terminal; 25, limiting part; 251, third stop surface; 26, position detection member; 261, active trigger end; 262, wiring lug; 30, second connector; 31, second housing; 311, first stop surface; 312, flange; 313, main housing part; 314, boss part; 315, opening; 32, second power terminal; 33, second insulating member; 34, second signal terminal; 35, snap-fit ​​member; 351, third... 352. Abutting part; 353. Positioning pin; 354. Pivot part; 355. Guide part; 356. Fastening part; 357. Slot; 36. Locking element; 361. First force-applying surface; 362. Second force-applying surface; 363. Second abutting part; 3631. First working surface; 364. Second stop surface; 365. Force-applying part; 3651. Sliding groove; 366. Fitting part; 3661. First through groove; 367. Extension part; 3671. Contact end; 3672. Second through groove; 37. First elastic element; 38. Second elastic element; 39. Rotating shaft; 391. Rotation axis; F1. Insertion direction; F2. Pull-out direction. Detailed Implementation

[0040] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, integral connections, mechanical connections, electrical connections, direct connections, indirect connections via an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] The technical solutions provided by the embodiments of this application are described below with reference to the accompanying drawings.

[0044] Combination Figure 1 and Figure 2 As shown, this application provides a connector assembly 100, including a first connector 20 and a second connector 30.

[0045] In some embodiments, the first connector 20 is used for electrical connection to one device, and the second connector 30 is used for electrical connection to another different device. Once the first connector 20 and the second connector 30 are mechanically and electrically mated, load current can be transferred between at least the two devices. In other embodiments, the first connector 20 and the second connector 30 can also be used within the same device to transfer load current between two different modules of that device. In still other embodiments, the first connector 20 and the second connector 30 can simultaneously transfer load current and electronic signals.

[0046] In some embodiments, the first connector 20 and the second connector 30 are mechanically locked in their relative positions by a snap-fit ​​connection. In some embodiments, after the first connector 20 and the second connector 30 are snap-fitted, their ports remain in a plugged-in state.

[0047] In some embodiments, one of the first connector 20 and the second connector 30 may serve as a socket, fixed to a device, panel, or circuit board. In one embodiment, one of the first connector 20 and the second connector 30 may be fixed to a cabinet panel of the device. The other of the first connector 20 and the second connector 30 serves as a plug and is connected to another device via an electrical cable.

[0048] In some implementations, combined Figure 3As shown, the first connector 20 includes a first housing 21 and a first power terminal 22. The first power terminal 22 is positioned and accommodated within the first housing 21. Exemplarily, the first connector 20 also includes a first insulating member 23 accommodated within the first housing 21. The first power terminal 22 is inserted into the first insulating member 23. Further, the first connector 20 also includes a first signal terminal 24, which is positioned and accommodated within the first housing 21. Exemplarily, the first signal terminal 24 is inserted into the first insulating member 23.

[0049] In some implementations, combined Figure 4 As shown, the second connector 30 includes a second housing 31 and a second power terminal 32. The second power terminal 32 is positioned and accommodated within the second housing 31. Exemplarily, the second connector 30 also includes a second insulating member 33 accommodated within the second housing 31. The second power terminal 32 is inserted into the second insulating member 33. Further, the second connector 30 also includes a second signal terminal 34, which is positioned and accommodated within the second housing 31. Exemplarily, the second signal terminal 34 is inserted into the first insulating member 23.

[0050] Specifically, load current can be transmitted between the first power terminal 22 and the second power terminal 32.

[0051] Specifically, in combination Figure 2 As shown, the first connector 20 and the second connector 30 correspond to a predetermined insertion direction F1. When the position of the first connector 20 is relatively fixed, a portion of the second connector 30 can be accommodated into the first connector 20 along the insertion direction F1. For example, the second housing 31 and the second power terminal 32 can be accommodated into the first connector 20 along the insertion direction F1. The first connector 20 and the second connector 30 also correspond to a predetermined withdrawal direction F2. When the position of the first connector 20 is relatively fixed, the second connector 30 can be separated from the first connector 20 along the withdrawal direction F2. Understandably, the withdrawal direction F2 is opposite to the insertion direction F1.

[0052] Specifically, in combination Figure 3 and Figure 4As shown, the connector assembly 100 includes a first connector 20 and a second connector 30. The first connector 20 includes a limiting portion 25 connected to a first housing 21 and a position detection element 26 connected to the first housing 21. The position detection element 26 has a first electrical state and a second electrical state. The second connector 30 includes a latching member 35 rotatably connected to the second housing 31 and a locking member 36 slidably connected to the latching member 35. The second housing 31 has a locked position and an unlocked position relative to the first housing 21. The latching member 35 has a free position and an operating position relative to the second housing 31. The locking member 36 has a first position and a second position relative to the latching member 35. The first position is located downstream of the second position along the insertion direction F1. When the second housing 31 is in the locked position, the limiting portion 25 and the latching member 35 in the free position form a stop engagement. The position detection element 26 is triggered by the locking member 36 in the first position and is in the first electrical state. When the locking member 36 is in the second position, the position detection element 26 is not triggered and is in the second electrical state. When the latching member 35 is in the free position and the locking member 36 is in the first position, the latching member 35 and the second housing 31 form a stop engagement through the locking member 36.

[0053] Understandably, in the case of the connector assembly 100 of this application, when the second housing 31 is in a locked position relative to the first housing 21, the first housing 21 and the second housing 31 form a nested fit, the first connector 20 and the second connector 30 are in a fully mated state, and the first power terminal 22 and the second power terminal 32 have sufficient conductive contact area.

[0054] Combination Figure 7 As shown, when the second housing 31 is in the locked position relative to the first housing 21, when the locking member 36 is in the first position, the position detection member 26 is triggered by the locking member 36 and is in the first electrical state.

[0055] Combination Figure 7 As shown, when the second housing 31 is in the locked position relative to the first housing 21, and the latching member 35 is in the free position, a stop engagement is formed between the latching member 35 and the limiting part 25. The limiting part 25 inhibits the latching member 35 from moving relative to the first connector 20 in the pull-out direction F2, keeping the first connector 20 and the second connector 30 in a fully mated state, thereby ensuring the stable transmission of the load current. Figure 8 As shown, when the locking member 36 is in the first position, the locking member 36 acts as a stop between the latching member 35 and the second housing 31, preventing the latching member 35 from rotating from the free position to the operating position, so that the latching member 35 will not leave the free position due to the predetermined operation, and preventing the stop engagement between the latching member 35 and the limiting part 25 from being released before the load current stops.

[0056] Combination Figure 9a and Figure 9b As shown, with the second housing 31 in the locked position and the latching member 35 in the free position, the locking member 36 can slide from the first position to the second position by sliding relative to the latching member 35. When the locking member 36 is in the second position, the position detection member 26 is not triggered by the locking member 36, thus being in the second electrical state. The position detection member 26 provides feedback to the external control module. Based on the switching of the position detection member 26 from the first electrical state to the second electrical state, the control module confirms that the user needs to separate the first connector 20 from the second connector 30. Before the second housing 31 leaves the locked position, the control module uses a corresponding switching device to stop the load current.

[0057] When the locking member 36 is in the second position, the user can rotate the latching member 35 from the free position to the operating position through a predetermined operation. At this time, combined with Figure 10a and Figure 10b As shown, the latching member 35 bypasses the stop of the limiting part 25, allowing the second connector 30 to move relative to the first housing 21 in the pull-out direction F2, so that the second housing 31 reaches the unlocked position. When the second housing 31 is in the unlocked position, the second housing 31 is spaced apart from the first housing 21, and the second power terminal 32 is completely separated from the first power terminal 22. Since the load current has stopped when the second power terminal 32 separates from the first power terminal 22, no arc discharge will occur when the first power terminal 22 separates from the second power terminal 32, thereby preventing the power terminal from melting or vaporizing, and preventing the insulating material around the power terminal from carbonizing and decomposing.

[0058] Understandably, after the second connector 30 separates from the first connector 20, the latching member 35 rotates to a free position due to elastic reset as the user stops performing the intended operation. Understandably, when the first connector 20 and the second connector 30 are mated, the second housing 31 moves from the unlocked position to the locked position along the insertion direction F1. Since the first position of the locking member 36 is located downstream of the second position along the insertion direction F1, after the locking member 36 returns to the first position, the locking member 36 is located near the downstream position along the insertion direction F1. This allows the position detection member 26 to be positioned near the downstream position relative to the first housing 21 along the insertion direction F1, preventing the position detection member 26 from affecting the range of motion of the locking member 36 or the latching member 35.

[0059] Understandably, before the latching member 35 is subjected to a predetermined operation, the connector assembly 100 provides feedback on the position change of the locking member 36 through the position detection member 26. On the one hand, the connector assembly 100 of this application can stop the load current before the first power terminal 22 and the second power terminal 32 move relative to each other, providing more processing time for the control module and switching devices.

[0060] On the other hand, the connector assembly 100 of this application does not need to rely on the first signal terminal 24 and the second signal terminal 34 to detect positional changes between the first housing 21 and the second housing 31, and is therefore applicable to situations where there are only power terminals and no signal terminals. Alternatively, this application avoids the need to multiplex the functions of the first signal terminal 24 and the second signal terminal 34, simplifying the transmission and control of electronic signals.

[0061] Understandably, the latching member 35 is rotatably positioned relative to the second housing 31 around the rotation axis 391.

[0062] In some implementations, combined Figure 7 As shown, a restoring force is formed between the locking member 36 and the latching member 35, which can drive the locking member 36 to slide in the direction from the second position to the first position. Understandably, because of the restoring force between the locking member 36 and the latching member 35, this restoring force drives the locking member 36 to slide in the direction from the second position to the first position, causing the locking member 36 to return to the first position. Due to the restoring force between the locking member 36 and the latching member 35, no manual reset operation of the locking member 36 is required before or after the first connector 20 and the second connector 30 are mated. When the operator's hand leaves the locking member 36, the locking member 36 slides from the second position to the first position under the action of the restoring force, thereby simplifying the use of the second connector 30. At the same time, the restoring force helps the locking member 36 remain in the first position, avoiding misoperation caused by the locking member 36 accidentally sliding to the second position.

[0063] Understandably, as the user slides the locking member 36 from the first position to the second position, the user needs to overcome the restoring force. Therefore, the sliding speed of the locking member 36 from the first position to the second position is limited, preventing the locking member 36 from sliding from the first position to the second position in a very short time, thus providing more sufficient processing time for stopping the load current.

[0064] In some implementations, combined Figure 7As shown, the second connector 30 also includes a first elastic member 37. The latching member 35 has a first abutting portion 351 that abuts against one end of the first elastic member 37. The locking member 36 has a second abutting portion 363 that abuts against the other end of the first elastic member 37. The direction from the first abutting portion 351 to the second abutting portion 363 corresponds to the insertion direction F1. Understandably, the first elastic member 37 elastically abuts against the first abutting portion 351 and the second abutting portion 363. The elastic force generated by the compression of the first elastic member 37, as a restoring force, allows the locking member 36 to slide from the second position to the first position. Understandably, since the second abutting portion 363 is located approximately downstream of the first abutting portion 351 along the insertion direction F1, when the first position is located downstream of the second position along the insertion direction F1, the locking member 36 can slide from the second position to the first position.

[0065] Understandably, before the second connector 30 reconnects with the first connector 20, since the locking member 36 has returned to the first position, after the second connector 30 reconnects with the first connector 20, the position detection member 26 is triggered by the locking member 36 and switches to the first electrical state.

[0066] Optionally, the first elastic member 37 is a compression spring. Exemplarily, the first abutment portion 351 and the second abutment portion 363 are respectively connected to a positioning post 352. The positioning post 352 connected to the first abutment portion 351 is inserted into one end of the first elastic member 37. The positioning post 352 connected to the second abutment portion 363 is inserted into the other end of the first elastic member 37.

[0067] Optionally, combined Figure 5b As shown, the locking member 36 is provided with a sliding groove 3651. The width of the sliding groove 3651 corresponds to the width of the first abutment portion 351. The first abutment portion 351 is slidably accommodated within the sliding groove 3651, thereby defining the relative sliding direction between the locking member 36 and the latching member 35.

[0068] In some other embodiments, the first elastic element 37 can also be a tension spring by adjusting the structural connection relationship of the first elastic element 37.

[0069] Alternatively, a restoring force can be formed between the locking member 36 and the latching member 35 by a pair of mutually repelling magnets. Alternatively, a restoring force can be formed between the locking member 36 and the latching member 35 by a pair of mutually attracting magnets.

[0070] In some other embodiments, the locking member 36 has at least one slot, and the fastening member 35 has at least one protrusion. When the locking member 36 is in the first or second position, the protrusion is engaged in the corresponding slot. When the user pushes the locking member 36, causing it to move relative to the fastening member 35, a pressing action is generated between the protrusion and the inner wall of the slot until the protrusion leaves the slot due to mechanical deformation, thereby stabilizing the locking member 36 relative to the fastening member 35 in the first or second position. In still other embodiments, the locking member 36 may have at least one protrusion, and the fastening member 35 may have at least one slot.

[0071] In some implementations, combined Figure 4 and Figure 7 As shown, the second connector 30 also includes a second elastic member 38. The second elastic member 38 abuts between the latching member 35 and the second housing 31, thereby allowing the latching member 35 to automatically return to its free position under the elastic force of the second elastic member 38 when the second connector 30 is not operated by the user. Exemplarily, the second elastic member 38 is a compression spring.

[0072] Optionally, combined Figure 7 As shown, the second elastic element 38 is disposed downstream of the rotation axis 391 along the insertion direction F1. Optionally, the second elastic element 38 is disposed upstream of the rotation axis 391 along the insertion direction F1.

[0073] In other embodiments, the buckle 35 and the second housing 31 can be integrally connected, and the buckle 35 can be rotated and elastically reset by the elastic deformation of the connection between the buckle 35 and the second housing 31.

[0074] In some implementations, combined Figure 4 As shown, the second housing 31 includes a main housing portion 313 and a boss portion 314 connected to the outside of the main housing portion 313. A second power terminal 32 is housed within the main housing portion 313. A latching member 35 and a locking member 36 are disposed on the outside of the main housing portion 313. The latching member 35 and the locking member 36 are at least partially housed within the space enclosed by the boss portion 314.

[0075] Optionally, combined Figure 4 As shown, the boss portion 314 has an opening 315. A locking member 36 is movably inserted into the opening 315 of the boss portion 314. When the locking member 36 is in the first position, it abuts against the boss portion 314 to balance the elastic force of the second elastic member 38. More specifically, the locking member 36 abuts against the edge of the opening 315.

[0076] Optionally, combined Figure 7As shown, the second connector 30 also includes a rotating shaft 39. The rotating shaft 39 is inserted into the boss portion 314 and the latching member 35 to achieve a rotatable connection between the latching member 35 and the second housing 31. Understandably, the axis of the rotating shaft 39 is parallel to the rotation axis line 391.

[0077] In some implementations, combined Figure 5a As shown, the locking member 36 has a first force-applying surface 361 and a second force-applying surface 362. The orientation of the first force-applying surface 361 corresponds to the direction from the second position to the first position. The orientation of the second force-applying surface 362 corresponds to the direction perpendicular to the sliding direction of the locking member 36. Understandably, since the orientation of the first force-applying surface 361 corresponds to the direction from the second position to the first position, the normal of the first force-applying surface 361 is approximately in the same direction as the direction from the second position to the first position, or the angle between the two is small. Therefore, by pushing the first force-applying surface 361, the user can slide the locking member 36 to the second position.

[0078] Understandably, for the sake of simplicity and ease of understanding, the direction that is perpendicular to both the sliding direction of the locking member 36 and the rotation axis 391 is referred to as the setting direction. The setting direction roughly corresponds to the direction from the operating position to the free position. The normal of the first force-applying surface 361 is roughly in the same direction as the setting direction, or the angle between the two is small. Therefore, when the user applies force to the second force-applying surface 362, it will not cause the locking member 36 to slide relative to the latching member 35, and it can drive the latching member 35 to rotate from the free position to the operating position.

[0079] Optionally, as shown in Figure 5, the first force-applying surface 361 and the second force-applying surface 362 are arranged adjacent to each other. Understandably, when a user holds the second housing 31 with four fingers of one hand, they use the tip of their thumb to push against the first force-applying surface 361. After the locking member 36 reaches the second position, because the first force-applying surface 361 and the second force-applying surface 362 are adjacent, the thumb can simultaneously conform to both the first force-applying surface 361 and the second force-applying surface 362 through the concave deformation of the fingerprint area of ​​the thumb. Thus, while holding the locking member 36 in the second position, the thumb can also apply force to the second force-applying surface 362 in the opposite direction of a set direction, causing the latching member 35 to rotate from the free position to the operating position. Understandably, during operation of the second connector 30, the user can maintain a single-handed grip on the second housing 31 with four fingers, and use only the thumb to sequentially operate the locking member 36 and the latching member 35. This eliminates the need to change the grip position of the single hand on the second housing 31 and avoids the need for two hands to operate the second connector 30, thus simplifying the operation of the second connector 30. In some embodiments, the operating speed of the locking member 36 is limited due to the need to overcome restoring force, to prevent the load current from failing to stop in time.

[0080] Optionally, the gap between the first force-applying surface 361 and the second force-applying surface 362 is less than a preset distance value. Understandably, even when the first force-applying surface 361 and the second force-applying surface 362 are spaced apart, as long as the gap between them is less than the preset distance value, the thumb can still simultaneously contact both the first force-applying surface 361 and the second force-applying surface 362. For example, the preset distance value ranges from 0.5mm to 30mm.

[0081] In some implementations, combined Figure 7 As shown, the second force-applying surface 362 can be located downstream of the rotation axis 391 along the insertion direction F1.

[0082] For example, the free end of the limiting part 25 is generally facing the first power terminal 22, and the second force-applying surface 362 is generally away from the second power terminal 32. When it is necessary to rotate the latch 35 from the free position to the operating position, the user presses the second force-applying surface 362 in the direction close to the second power terminal 32.

[0083] For example, the free end of the limiting part 25 is generally away from the first power terminal 22, and the second force-applying surface 362 is generally facing the second power terminal 32. When it is necessary to rotate the latch 35 from the free position to the operating position, the user moves the second force-applying surface 362 in a direction away from the second power terminal 32.

[0084] In some other embodiments, the rotation axis 391 is disposed downstream of the second force-applying surface 362 along the insertion direction F1. Exemplarily, the free end of the limiting portion 25 is substantially opposite to the first power terminal 22, and the second force-applying surface 362 is substantially opposite to the second power terminal 32.

[0085] In some implementations, combined Figure 4 and Figure 5bAs shown, the second housing 31 is provided with a first stop surface 311, and the locking member 36 is provided with a second stop surface 364. When the locking member 36 is in the first position and the latching member 35 is in the free position, the first stop surface 311 and the second stop surface 364 are at least partially opposite to each other, and the relative direction between the first stop surface 311 and the second stop surface 364 corresponds to a direction perpendicular to the sliding direction of the locking member 36. Understandably, when the locking member 36 is in the first position, the relative direction between the first stop surface 311 and the second stop surface 364 is approximately parallel to the set direction, or the included angle between them is small. Therefore, when the latching member 35 is in the free position and the locking member 36 is in the first position, when the locking member 36 is subjected to a predetermined operation, causing the locking member 36 to have a tendency to drive the latching member 35 to rotate, the first stop surface 311 and the second stop surface 364 come into contact, thereby forming a stop fit between the latching member 35 and the second housing 31, preventing the latching member 35 from rotating to the operating position.

[0086] Optionally, the sliding direction of the locking member 36 is the sliding direction of the locking member 36 relative to the latching member 35.

[0087] In some implementations, combined Figure 5b and Figure 10a As shown, the second housing 31 has a flange portion 312. A first stop surface 311 is provided at the free end of the flange portion 312. One end of the second elastic member 38 is inserted into the flange portion 312, and the other end abuts against the latching member 35. The locking member 36 has a first through groove 3661. The second stop surface 364 is disposed adjacent to the edge of the first through groove 3661. When the locking member 36 is in the second position and the latching member 35 is in the operating position, the flange portion 312 is inserted into the first through groove 3661. Understandably, since one end of the second elastic member 38 is inserted into the flange portion 312, the flange portion 312 limits one end of the second elastic member 38. The flange portion 312 protrudes from the surface of other parts of the second housing 31. The free end of the flange portion 312 faces away from the second power terminal 32. Since the first stop surface 311 is disposed at the free end of the flange portion 312, and the second stop surface 364 is disposed adjacent to the edge of the first through groove 3661, when the second housing 31 is in the locked position and the locking member 36 is in the first position, when the second connector 30 is subjected to a predetermined operation, the free end of the flange portion 312 abuts against the wall surface surrounding the flange. Understandably, the flange portion 312 can both limit the second elastic member 38 and form a stop engagement with the locking member 36, suppressing the rotation of the latching member 35, thereby simplifying the structure of the second connector 30. When the locking member 36 is in the second position, the flange portion 312 is opposite to the first through groove 3661, so that when the second connector 30 is subjected to a predetermined operation, the latching member 35 can rotate to the operating position.

[0088] Understandably, the second elastic element 38 passes through the first through groove 3661. Optionally, the flange portion 312 is cylindrical.

[0089] In some other embodiments, a second stop surface 364 is provided on at least one side of the locking member 36 along the direction of the rotation axis 391. Exemplarily, second stop surfaces 364 are formed on both sides of the locking member 36 along the direction of the rotation axis 391. On both sides of the locking member 36, a first stop surface 311 is correspondingly formed in the second housing 31.

[0090] In some implementations, combined Figure 3 and Figure 8 As shown, the first housing 21 is provided with a guide groove 211. The guide groove 211 is used for the insertion of the buckle 35 and the locking member 36. The position detection member 26 is housed in the guide groove 211, thereby preventing the position detection member 26 from being affected by other devices.

[0091] For example, the limiting part 25 is provided to protrude from the inner wall surface of the guide groove 211.

[0092] For example, combined Figure 3 As shown, the limiting part 25 is provided with a third stop surface 251. The orientation of the third stop surface 251 corresponds to the insertion direction F1. Understandably, the orientation of the third stop surface 251 is approximately the same as that of the insertion direction F1.

[0093] In some embodiments, the first electrical state is an ON state and the second electrical state is an OFF state. In other embodiments, the first electrical state is an OFF state and the second electrical state is an ON state. In still other embodiments, the first and second electrical states may be combinations of other electrical states.

[0094] In other embodiments, the position detection element 26 can also be used directly as a switching device to cut off the load current. For example, the position detection element 26 is connected in series with the first power supply terminal 22.

[0095] In some implementations, combined Figures 8 to 9bAs shown, the position detection element 26 is provided with an active trigger end 261. When the second housing 31 is in the locked position and the locking member 36 is in the first position, the locking member 36 abuts against the active trigger end 261. Understandably, the active trigger end 261 has a third position and a fourth position relative to the main body of the position detection element 26. When the active trigger end 261 is not abutted by the locking member 36, and is in the third position, the position detection element 26 is in a second electrical state. When the active trigger end 261 is abutted by the locking member 36, the active trigger end 261 is pushed to the fourth position by the locking member 36, and the electrical structure within the main body of the position detection element 26 is adjusted due to the movement of the active trigger end 261, causing the position detection element 26 to be in the first electrical state. Understandably, the third and fourth positions correspond to a critical position; when the active trigger end 261 passes through the critical position, the state of the position detection element 26 switches.

[0096] Specifically, for simplicity and ease of understanding, the direction of activity between the third and fourth positions of the activity trigger 261 is referred to as the first activity direction. Optionally, the first activity direction is approximately parallel to the insertion direction F1.

[0097] Optionally, by providing a slope or arc surface in the contact area between the locking member 36 and the movable trigger end 261, the first movement direction and the insertion direction F1 can be inclined or perpendicular. For example, the end of the locking member 36 that contacts the position detection member 26 has a slope, the surface of the movable trigger end 261 is hemispherical, and the first movement direction is perpendicular to the insertion direction F1. When the slope of the locking member 36 abuts against the movable trigger end 261, as the locking member 36 moves closer to the first position, it can press the movable trigger end 261 in a direction perpendicular to the insertion direction F1.

[0098] Understandably, the travel of the locking member 36 from the first position to the second position includes a first segment and a second segment. The distance of the first segment corresponds to the distance between the critical position and the fourth position of the active trigger terminal 261. The second segment of the travel provides processing time for stopping the load current. Understandably, the larger the proportion of the second segment of the travel, the longer the processing time.

[0099] Optionally, combined Figure 3 As shown, the position detection element 26 has two lugs 262. In a first electrical state, a short circuit is formed between the two lugs 262. In a second electrical state, electrical isolation is formed between the two lugs 262. Exemplarily, the position detection element 26 is a microswitch.

[0100] Optionally, when the second housing 31 is in the locked position, the latching member 35 is spaced apart from the active trigger end 261 along the insertion direction F1, thereby preventing the active trigger end 261 from being interfered with by the latching member 35 and preventing the latching member 35 from abutting against the active trigger end 261 and causing the position detection member 26 to be erroneously triggered. For example, the active trigger end 261 of the position detection member 26 is disposed downstream of the limiting portion 25 along the insertion direction F1. The locking member 36 is provided with a contact end 3671. When the locking member 36 is in the first position, the contact end 3671 is disposed downstream of the latching member 35 along the insertion direction F1; when the second housing 31 is in the locked position, the contact end 3671 of the locking member 36 abuts against the active trigger end 261.

[0101] For example, combined Figure 5a As shown, the contact end 3671 has an end face opposite to the active trigger end 261, the area of ​​which is not less than the surface area of ​​the active trigger end 261, thereby helping to ensure that the locking member 36 abuts against the active trigger end 261 in the first position.

[0102] Understandably, when the locking member 36 is in the first position, the reset force experienced by the active trigger end 261 within the position detection member 26 is less than the restoring force generated by the first elastic member 37, thereby ensuring that the active trigger end 261 moves to the fourth position under the abutment of the locking member 36.

[0103] In some other embodiments, the position detection element 26 has a transmitting end and a receiving end. The transmitting end and the receiving end are spaced apart. The transmitting end is used to emit detection light. When the locking member 36 is in the first position, the locking member 36 is inserted between the transmitting end and the receiving end, and the locking member 36 blocks the detection light, so the receiving end cannot receive the detection light, and the position detection element 26 is in a first electrical state. When the locking member 36 is in the second position, the locking member 36 moves away from the position between the transmitting end and the receiving end, and after the receiving end receives the detection light, the position detection element 26 is in a second electrical state. For example, the position detection element 26 is a photoelectric device, and the detection light is infrared light.

[0104] In some embodiments, the position detection element 26 is magnetically sensitive. One end of the locking element 36 is magnetic, or one end of the locking element 36 is connected to a magnetic component. When the locking element 36 is in a first position, the position detection element 26 is triggered by the magnetism at one end of the locking element 36 and is in a first electrical state. When the locking element 36 is in a second position, the magnetic induction of the position detection element 26 on the locking element 36 is eliminated due to the large distance, causing the position detection element 26 to be in a second electrical state. Exemplarily, the position detection element 26 is a reed switch or a Hall effect sensor.

[0105] In some implementations, combined Figure 6As shown, the latching member 35 includes a pivot portion 353, a guide portion 354, and a fastening portion 355. The guide portion 354 is connected between the pivot portion 353 and the fastening portion 355. The pivot portion 353 is rotatably connected to the second housing 31. The locking member 36 is slidably sleeved on the outside of the guide portion 354. When the second housing 31 is in the locked position and the latching member 35 is in the free position, the limiting portion 25 and the fastening portion 355 form a stop engagement. It can be understood that by sliding the locking member 36 on the outside of the guide portion 354, a sliding connection between the locking member 36 and the latching member 35 is achieved, and the locking member 36 is prevented from affecting the engagement between the latching member 35 and the limiting portion 25. Optionally, a rotating shaft 39 is inserted into the second housing 31 and the pivot portion 353, thereby achieving a rotatable connection between the latching member 35 and the second housing 31. Exemplarily, the other end of the second elastic member 38 is inserted into the guide portion 354.

[0106] Optionally, combined Figure 6 As shown, the fastening part 355 is provided with a groove 356. When the second housing 31 is in the locked position and the fastener 35 is in the free position, the limiting part 25 is inserted into the groove 356. The third stop surface 251 is disposed opposite to the inner peripheral surface of the groove 356 so that a stop engagement is formed between the limiting part 25 and the fastener 35.

[0107] In some implementations, combined Figure 5a and Figure 5b As shown, the locking member 36 includes a force-applying portion 365, a fitting portion 366, and an extension portion 367. The fitting portion 366 connects the force-applying portion 365 and the extension portion 367. Exemplarily, when the second housing 31 is in the locked position and the locking member 36 is in the first position, the extension portion 367 abuts against the active trigger end 261 of the position detection member 26. Understandably, the contact end 3671 is provided on the extension portion 367. Specifically, the fitting portion 366 is slidably fitted onto the outside of the guide portion 354. Exemplarily, a first through groove 3661 is provided on the fitting portion 366, and when the locking member 36 slides relative to the latching member 35, the fitting portion 366 avoids the second elastic member 38 through the first through groove 3661.

[0108] For example, combined Figure 5a As shown, a first force-applying surface 361 and a second force-applying surface 362 are disposed on a force-applying portion 365. A fitting portion 366 is disposed on the side opposite to the second power terminal 32 in the force-applying portion 365. In some other embodiments, the first force-applying surface 361 is disposed on the force-applying portion 365, and the second force-applying surface 362 is disposed on the latching member 35.

[0109] For example, combined Figure 5b and Figure 6 As shown, the shape defined by the inner circumference of the fitting portion 366 corresponds to the cross-sectional shape of the guide portion 354, thereby enabling the locking member 36 to slide relative to the snap-fit ​​member 35.

[0110] For example, combined Figure 7 As shown, when the locking member 36 is in the first position, the fitting portion 366 abuts against the boss portion 314 to balance the elastic force of the second elastic member 38.

[0111] Optionally, the extension 367 is curved to avoid the engagement portion 355.

[0112] Optionally, combined Figure 11a and Figure 11b As shown, the extension 367 is provided with a second through groove 3672. Along a direction parallel to the rotation axis 391, the width of the second through groove 3672 is greater than the width of the engaging portion 355, allowing the engaging portion 355 to be accommodated within the second through groove 3672. Understandably, the extension 367, through the second through groove 3672, avoids obstructing the engaging portion 355, thereby improving the compactness of the second connector 30. Exemplarily, when the latching member 35 is in the free position and the locking member 36 is in the first position, the engaging portion 355 is at least partially accommodated within the second through groove 3672.

[0113] For example, combined Figure 11a As shown, the extension 367 is generally U-shaped. The open end of the extension 367 is connected to the fitting part 366, and the closed end of the extension 367 is used to abut against the active trigger end 261 of the position detection member 26.

[0114] In some implementations, combined Figures 11b to 12b As shown, the locking member 36 includes a force-applying portion 365 and a second abutting portion 363 connected to the force-applying portion 365. The second abutting portion 363 is disposed on the side of the force-applying portion 365 near the latching member 35. The second abutting portion 363 has a first working surface 3631, the orientation of which is opposite to that of the force-applying portion 365. When the latching member 35 is in the free position and the locking member 36 is in the first position, the first working surface 3631 is disposed opposite to the second housing 31 and forms a stop engagement. When the locking member 36 is in the second position, the first working surface 3631 is disposed opposite to the latching member 35.

[0115] Understandably, combined Figure 12aAs shown, when the second housing 31 is in the locked position, the latching member 35 is in the free position, and the locking member 36 is in the first position, when the locking member 36 is subjected to a predetermined operation, and the locking member 36 tends to rotate the latching member 35 towards the operating position, the first working surface 3631 forms an abutment with the second housing 31, suppressing the movement tendency of the locking member 36, thereby stably keeping the latching member 35 in the free position and effectively preventing the stop engagement between the latching member 35 and the limiting part 25 from being directly released. For example, when the latching member 35 is in the free position and the locking member 36 is in the first position, the first working surface 3631 is disposed opposite to the outer surface of the boss part 314.

[0116] Understandably, combined Figure 12b As shown, when the locking member 36 slides relative to the latching member 35 to the second position, the first working surface 3631 no longer forms a relative relationship with the surface of the second housing 31. Instead, the first working surface 3631 is disposed opposite to the latching member 35, and the distance between them is relatively small. When the locking member 36 is subjected to a predetermined operation, the second abutting part 363 abuts against the latching member 35 through the first working surface 3631, and causes the latching member 35 to rotate towards the operating position against the elastic force of the second elastic member 38.

[0117] Optionally, combined Figure 12b As shown, when the locking member 36 is in the second position and the latching member 35 is in the operating position, a stop engagement is formed between the force-applying part 365 and the second housing 31 to prevent the locking member 36 and the latching member 35 from rotating further in the direction from the free position to the operating position, and to prevent the extension part 367 or the fastening part 355 from being broken by pressure. For example, when the locking member 36 is in the second position and the latching member 35 is in the operating position, the force-applying part 365 is abutted against the boss part 314.

[0118] For example, combined Figure 7 As shown, one side of the force-applying part 365 is close to the guide part 354, and the second abutment part 363 is connected to that side of the force-applying part 365. When the locking member 36 is in the second position and the latching member 35 is in the free position, when the force-applying part 365 is subjected to a predetermined operation, the second abutment part 363 pushes against the guide part 354, causing the latching member 35 to rotate toward the operating position.

[0119] In some embodiments, the locking member 36 is slidably connected to the second housing 31. The locking member 36 has a first position and a second position relative to the second housing 31. The first position is located downstream of the second position along the insertion direction F1. When the second housing 31 is in the locked position, the limiting part 25 forms a stop engagement with the latching member 35 in the free position. The position detection member 26 is triggered by the locking member 36 in the first position and is in a first electrical state. When the locking member 36 is in the second position, the position detection member 26 is not triggered and is in a second electrical state. When the locking member 36 is in the first position and the latching member 35 is in the free position, a stop engagement is formed between the latching member 35 and the locking member 36. Understandably, there is no sliding relationship between the locking member 36 and the latching member 35.

[0120] For example, the locking member 36 is provided with a fourth stop surface, and the latching member 35 is provided with a fifth stop surface. When the locking member 36 is in the first position and the latching member 35 is in the free position, the fourth stop surface and the fifth stop surface are at least partially opposite to each other, and the relative direction between the fourth stop surface and the fifth stop surface is approximately tangent to the rotation direction of the latching member 35. Thus, when the latching member 35 has a tendency to rotate, the fourth stop surface and the fifth stop surface abut against each other, preventing the latching member 35 from rotating to the operating position.

[0121] For example, when the locking member 36 is slidably connected to the second housing 31, the locking member 36 is provided with a first force-applying part, and the latching member 35 is provided with a second force-applying part. The first force-applying part is in the shape of a thin strip. When the locking member 36 is pushed to the second position by pushing the first force-applying part, the first force-applying part and the second force-applying part are close together, so that the thumb can both prevent the locking member 36 from resetting and operate the second force-applying part.

[0122] The above embodiments are merely preferred embodiments of this application and are not intended to limit the scope of this application. Any modifications and improvements made by those skilled in the art to the technical solutions of this application without departing from the spirit of this application should fall within the protection scope defined by the claims of this application.

Claims

1. A connector assembly, characterized in that, include: The first connector includes a first housing, a limiting portion connected to the first housing, and a position detection element connected to the first housing, wherein the position detection element has a first electrical state and a second electrical state; and The second connector includes a second housing, a snap-fit ​​component rotatably connected to the second housing, and a locking component slidably connected to the snap-fit ​​component; The second housing has a locked position and an unlocked position relative to the first housing; the latching member has a free position and an operating position relative to the second housing; the locking member has a first position and a second position relative to the latching member; The first position is located downstream of the second position along the insertion direction; When the second housing is in the locked position, the limiting part forms a stop engagement with the latching member in the free position. The position detection member is triggered by the locking member in the first position and is in a first electrical state. When the locking member is in the second position, the position detection member is not triggered and is in a second electrical state. When the latching member is in the free position and the locking member is in the first position, the latching member and the second housing form a stop engagement through the locking member.

2. The connector assembly according to claim 1, characterized in that, A restoring force is formed between the locking member and the latching member, which can drive the locking member to slide in the direction from the second position to the first position.

3. The connector assembly according to claim 2, characterized in that, The second connector further includes a first elastic member; the snap-fit ​​member has a first abutting portion abutting against one end of the first elastic member; the locking member has a second abutting portion abutting against the other end of the first elastic member; the direction from the first abutting portion to the second abutting portion corresponds to the insertion direction.

4. The connector assembly according to claim 2, characterized in that, The locking member has a first force-applying surface and a second force-applying surface; the orientation of the first force-applying surface corresponds to the direction from the second position to the first position; the orientation of the second force-applying surface corresponds to the direction perpendicular to the sliding direction of the locking member; the first force-applying surface and the second force-applying surface are arranged adjacent to each other, or the gap between the first force-applying surface and the second force-applying surface is less than a preset distance value.

5. The connector assembly according to claim 1, characterized in that, The position detection component is provided with an active trigger end; when the second housing is in the locked position and the locking component is in the first position, the locking component abuts against the active trigger end.

6. The connector assembly according to claim 5, characterized in that, When the second housing is in the locked position, the latching member is spaced apart from the active trigger end along the insertion direction.

7. The connector assembly according to claim 1, characterized in that, The second housing is provided with a first stop surface, and the locking member is provided with a second stop surface; when the locking member is in the first position, the first stop surface and the second stop surface are at least partially opposite to each other, and the relative direction between the first stop surface and the second stop surface corresponds to a direction perpendicular to the sliding direction of the locking member.

8. The connector assembly according to claim 7, characterized in that, The second connector further includes a second elastic element; the second housing has a flange portion; the first stop surface is disposed at the free end of the flange portion; one end of the second elastic element is inserted into the flange portion, and the other end abuts against the latching element; the locking element has a first through groove; the second stop surface is disposed adjacent to the edge of the first through groove; when the locking element is in the second position and the latching element is in the operating position, the flange portion is inserted into the first through groove; the locking element includes a force-applying portion and a second abutting portion connected to the force-applying portion, the second abutting portion is disposed on the side of the force-applying portion close to the latching element, the second abutting portion has a first working surface, the orientation of the first working surface is away from the force-applying portion; when the latching element is in the free position and the locking element is in the first position, the first working surface is disposed opposite to the second housing and forms a stop fit; when the locking element is in the second position, the first working surface is disposed opposite to the latching element.

9. The connector assembly according to claim 1, characterized in that, The fastener includes a pivot portion, a guide portion, and a fastening portion; the guide portion is connected between the pivot portion and the fastening portion; the pivot portion is rotatably connected to the second housing; the locking member is slidably sleeved on the outside of the guide portion; when the second housing is in the locked position and the fastener is in the free position, the limiting portion and the fastening portion form a stop engagement.

10. A connector assembly, characterized in that, include: The first connector includes a first housing, a limiting portion connected to the first housing, and a position detection element connected to the first housing, wherein the position detection element has a first electrical state and a second electrical state; and The second connector includes a second housing, a snap-fit ​​member rotatably connected to the second housing, and a locking member slidably connected to the second housing; the second housing has a locked position and an unlocked position relative to the first housing; the snap-fit ​​member has a free position and an operating position relative to the second housing; the locking member has a first position and a second position relative to the second housing. The first position is located downstream of the second position along the insertion direction; When the second housing is in the locked position, the limiting part and the latching member in the free position form a stop engagement. The position detection member is triggered by the locking member in the first position and is in a first electrical state. When the locking member is in the second position, the position detection member is not triggered and is in a second electrical state. When the locking member is in the first position and the latching member is in the free position, a stop engagement is formed between the latching member and the locking member.

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