Plug connector
The plug connector with an elastically deformable locking element and supported housing facilitates easy and reliable connection and disconnection with minimal force, addressing the issue of excessive force and unintentional actuation in existing connectors.
Patent Information
- Application Number
- PCT/CN2024/098258
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-12-11
AI Technical Summary
Existing plug connectors require excessive force to connect and lock with mating connectors, and unintentional actuation can occur due to accidental contact with obstacles, leading to unwanted movement and potential damage.
A plug connector with a connecting device that includes a locking element that allows easy and reliable connection and locking element that can be adjusted between positions to facilitate easy connection and disconnection with minimal force, using a locking element that is elastically deformable and supported by the connector housing to prevent unintentional actuation.
The solution enables easy and reliable connection and disconnection of plug connectors with minimal force, preventing unintentional actuation and damage, while maintaining stability and ease of use.
Smart Images

Figure CN2024098258_11122025_PF_FP_ABST
Abstract
Description
Plug connectorTechnical field
[0001] The present invention relates to a plug connector. The plug connector can be plugged together with a mating plug connector, wherein electrical connections can be established.Background art
[0002] Plug connectors are known from the prior art which comprise a lever element for establishing the connection with a mating plug connector and for locking the connection. The lever element is configured, for example, on the plug connector and can interact with a mating element on the mating plug connector. If the lever element is actuated, this results in the plug connector and mating plug connector being brought together and, in particular, in the connection being locked.
[0003] DE 10 2004 018 152 A1 discloses a stopping element for ensuring that the lever element can only be actuated to establish and / or lock a connection with the mating plug connector. This stopping element prevents the lever element from moving into the closing position or into the connection position, as long as it is not pivoted into the connection position by a greater force. Such an increased force while actuating the lever element is unpleasant for an operator. Furthermore, the increased force, for example while transporting a plug connector and the operating element bumping into an obstacle, can easily be exceeded unintentionally, so that the operating element is moved beyond the stopping element in an undesired manner.
[0004] SUMMARY OF THE DISCLOSURE
[0005] According to the present invention, a plug connector and a plug connector assembly with a plug connector and a mating plug connector with the features of the independent patent claims are provided. Advantageous embodiments are the subject of the dependent claims and the following description.
[0006] According to a first aspect of the present invention, a plug connector is provided which is configured to be plugged together with a mating plug connector along a plugging direction which may, for example, extend parallel to a z-axis or z-direction. The plug connector comprises a plug connector housing and a connecting device coupled with the plug connector housing, in particular installed on the plug connector housing, which is configured to connect and / or lock the plug connector and mating plug connector.
[0007] Preferably, a width direction extends perpendicular to the plugging direction. In addition, a transverse direction preferably extends perpendicular to the width direction and perpendicular to the plugging direction. The plugging direction, the width direction and the transverse direction thus form three independent spatial directions in particular. They can, for example, form a Cartesian coordinate system.
[0008] The connecting device is adjustable or displaceable between a first position and a second position, wherein the connecting device is configured to couple with one or at least one mating engagement element of the mating plug connector, in particular to engage around it, in order to displace the plug connector towards the mating plug connector, in particular parallel to the plugging direction, when the connecting device is adjusted from the first position into the second position.
[0009] In particular, the plug connector also comprises at least one contact element which can be electrically contacted with a mating contact element of the mating plug connector. In this case, contact element and mating contact element are, for example, plugged together, which requires a predefined amount of force. If there is a large number of such pairs of contact element and mating contact element, a high force is required to insert plug connector and mating plug connector in one another. The connecting device advantageously allows to simplify the plugging together of plug connector and mating plug connector. This can be achieved, for example, by reducing the operating forces when plug connector and mating plug connector are plugged together (e.g. by using lever forces and / or transmissions) . A locking process can also be facilitated, for example, a locking process at the end of the plugging distance. In particular, the connecting device enables a uniform connection process with little operating force, but with more distance for this. The connecting device is thus configured in particular to support and / or facilitate a connecting process and / or locking process when connecting the plug and mating plug –this can be understood to mean that the connecting device is configured for connecting and / or locking.
[0010] Due to the achieved displacement of the plug connector towards the mating plug connector or due to the provision of the connecting device, plug connectors and mating plug connectors can be easily and with little force plugged together or released from each other. In particular, plug connections with a large number of contacts and / or with contacts suitable for high current can be plugged together or released or unplugged from each other with little force.
[0011] The connecting device is advantageously configured as a lever, which can rotate about a rotational axis, in particular parallel to the width direction. Alternatively or additionally, the connecting device is preferably configured as a slidable slider, in particular a linearly slidable slider.
[0012] The connecting device comprises a locking element that is preferably elastically reversibly deflectable. The locking element is displaceable between a locking position and an unlocking position, wherein said displacement occurs in particular by means of an elastic deformation. A plastic deformation is in particular avoided. The locking element comprises a first abutment surface for abutment against a housing mating surface of the plug connector housing and a second abutment surface for abutment against a mating surface of the connecting device. By means of the abutment of the aforementioned surfaces, the locking element prevents the connecting device from being adjusted from the first position into the second position. In particular, the adjustment is blocked by the abutment of the locking element against the plug connector housing in a form-fitting manner when the locking element is in the locking position. The abutment of the locking element against the mating surface of the connecting device allows the locking element to be supported and thus provides a high degree of stability, regardless of the configuration or stability of the locking element.
[0013] The locking element is configured to be deflected by a release element of the mating plug connector in order to prevent at least abutment of the first abutment surface against the housing mating surface. For this purpose, the locking element is displaceable into the unlocking position. The deflection is in particular an elastic deformation of the locking element. In this way, adjustment of the connecting device from the first position into the second position is not locked when the locking element is in the unlocking position. Particularly advantageously, the unlocking position is not stable, but the locking element is pushed back into the locking position by an elastic restoring force.
[0014] The invention thus advantageously provides a simple possibility of locking an adjustment of the connecting device and thus a displacement of the plug connector towards the mating plug connector by means of a locking element of the connecting device, i.e. on the connecting device itself, when the plug connector is not in the correct position in which the locking element is deflected by the mating plug connector. This advantageously achieves that the connecting device is not unintentionally adjusted, e.g. when the plug connector is being handled (e.g. during transportation) or is already attached to a cable harness and the cable harness together with the plug connector is installed in a device or transported to its destination. It is also advantageous that this locking cannot be overcome easily (without damage) by applying increased force. Further advantageously, there is no place where additional force is required (e.g. to overcome a stopping element configured as an obstacle) during the plugging process or when operating the connecting device. This advantageously enables an operator to operate the connecting device and to plug together or release the plug connection particularly easily and with little force.
[0015] The locking element can advantageously be constructed to be very pliable, so that it can be easily and reliably deflected or deformed by the release element. The possibility of placing the second abutment surface against the mating surface to lock the adjustment of the connecting device means that the locking element is supported, so that the stability of the locking of the connecting device does not have to be provided solely by the locking element. Rather, the entire connecting device has a stability-enhancing effect. In addition, the locking element cannot be overcome or overpressed simply by a force impulse (without damage or destruction) .
[0016] The abutment of the first abutment surface against the housing mating surface of the plug connector housing allows blocking the movability of the connecting device relative to the plug connector housing. Due to the simple deformability of the locking element, the locking of the connecting device can be easily released by the release element with little effort, by deforming the locking element. At the same time, this simple deformability does, however, not lead to a loss of the locking effect due to the previously described support of the locking element on the mating surface of the connecting device.
[0017] The mating engagement element can, for example, be configured as a bolt, pin or projection, or as a link rod or a toothed wheel or a toothed rack or the like. The connecting device can, for example, be configured to be complementary to the engagement element. This can, for example, be configured as a link rod or as a bolt, pin or projection, or as a toothed rack or as a further toothed wheel or the like.
[0018] According to a second aspect of the present invention, a plug connector assembly is provided which comprises a plug connector according to the first aspect and a mating plug connector. The mating plug connector comprises a mating plug connector housing, (at least) one or the (at least) one mating engagement element and a release element. The release element is configured to deflect the locking element by elastic deformation or to deform it in such a way that it (i.e. the locking element) is elastically deflected.
[0019] In this way, advantageously, a plug connector assembly is provided in which the lock or blocking of the connecting device is essentially automatically canceled, e.g. when the plug connector is positioned in the correct position relative to the mating plug connector, e.g. in particular without further action by a technician (i.e. : e.g. without the technician having to operate an additional element) . This advantageously facilitates the mounting of the plug connector assembly. At the same time, it is not possible to overcome the lock by simply applying force to the connecting device, or in particular without damage.
[0020] It may be provided, for example, that the release element is configured to deform or deflect the locking element of the connecting device, in particular when the plug connector and the mating plug connector are in mechanical contact or when the plug connector is placed onto the mating plug connector as intended or at the beginning of the plugging-together process. It is preferably at this point in time that the locking element is to be deflected, in particular elastically or within its elastic deformation range, in order to enable the plugging together. In other words: it can be provided that the release element is configured to deflect the locking element of the connecting device depending on the plugging position between plug connector and mating plug connector and / or depending on the relative position (tilting, angle, plugged-in depth, etc. ) between plug connector and mating plug connector.
[0021] The dependent claims show preferred further developments of the present invention.
[0022] Preferably, in the locking position of the locking element, when the connecting device is adjusted from the first position in the direction of the second position, in a third position, the first abutment surface abuts against the housing mating surface. At the same time, the second abutment surface does not abut against the mating surface. Thus, a locking effect is achieved, but the locking element is not supported on the rest of the connecting device. When the connecting device is further adjusted in the direction of the second position, i.e. when it is adjusted beyond the third position, the locking element reaches a fourth position. In this fourth position, the first abutment surface abuts against the housing mating surface and the second abutment surface abuts against the mating surface. Particularly advantageously, the locking element reaches the fourth position after an adjustment of at most 5° or at most 10° along a rotation direction or around the rotation axis, which is oriented parallel to the width direction. In doing so, an elastic deformation of the locking element in the transverse direction takes place. In particular, due to abutment of the first abutment surface against the housing mating surface and of the second abutment surface against the mating surface, further adjustment of the connecting device in the direction of the second position is blocked. The locking element is supported on the mating surface and cannot be deformed further in the transverse direction, so that a stable stop for the connecting device is achieved. In other words, the locking element is clamped or supported between the housing mating surface of the plug connector housing and the mating surface of the connecting device, or it supports these two mating surfaces on its two sides facing away from each other.
[0023] The locking element is deflected parallel to the width direction during the displacement from the locking position into the unlocking position. In particular, it is deflected radially inwards in the direction of the plug connector housing. The term “radially inwards” can be understood to mean, for example, a direction that extends from an outer environment of the plug connector in the direction of an inner space (in which, for example, at least one contact element can be arranged) of the plug connector or plug connector housing. For example, a displacement parallel to the rotation axis can be provided for unlocking. The displacement is in particular an elastic bending of the locking element parallel to the width direction. Particularly advantageously, the locking element is pushed back into the unlocking position by elastic restoring forces and therefore moves back into the locking position without external influences, in particular through a backward displacement parallel to the width direction.
[0024] Advantageously, a recess is provided between the housing mating surface and an adjacent wall of the plug connector housing. The recess extends in particular parallel to the transverse direction. In the unlocking position, the locking element can be guided through the recess, in particular passing through the recess or along the recess, past the housing mating surface and the adjacent wall. In this way, the connecting device can be moved from the first position into the second position and vice versa.
[0025] Preferably, the second abutment surface and the mating surface are formed by a slit-shaped recess of the connecting device. Particularly advantageously, the locking element is formed through said slit-shaped recess from the rest of the connecting device. In addition, the properties of the locking element can be set by the configuration of the slit-shaped recess. In particular, the deformability can be adapted by the design of the slit-shaped recess.
[0026] In an advantageous embodiment, the slit width of the slit-shaped recess is at most 2 mm. Alternatively or additionally, it is provided that the slit-shaped recess is configured in such a way that the locking element is not plastically deformed or will not be deformed when the second abutment surface abuts the mating surface. In particular, the slit width of the slit-shaped recess ensures that in the fourth position of the connecting device, in which the second abutment surface of the locking element abuts against the mating surface of the connecting device, the locking element is not plastically deformed. In particular, the slot width only allows elastic deformation.
[0027] The locking element is preferably configured as a cantilever. The cantilever extends in particular parallel to the plugging direction. A cantilever is in particular an element that is fastened on one side and comprises a cantilevered end and can in particular be subjected to bending. The cantilever comprises the largest dimension along the plugging direction, in particular when the connecting device is in the first position, meaning in particular a dimension between a root of the cantilever, at which it is hung or, for example, installed or arranged or fastened on the plug connector housing, and the free end of the cantilever. The configuration as a cantilever allows the locking element to be easily deformed, so that the connecting device can be released by the release element with little effort. The cantilever, for example, comprises a length of 10 mm in the plugging direction and a dimension of 4 mm respectively in the transverse and width directions. It is understood that other dimensions or dimensioning and / or aspect ratios are possible.
[0028] For example, it may be provided that the first abutment surface is configured in the area of the free end of the cantilever.
[0029] It is also preferred that the locking element comprises the largest dimension parallel to the plugging direction, in particular when the connecting device is in the first position. Thus, pliability is achieved, in particular in directions transverse to the plugging direction. This in turn leads to easy deformability of the locking element and thus to easy release of the connecting device by the release element.
[0030] To prevent the connecting device from being adjusted from the first position into the second position, it is preferably provided that the first abutment surface bumps into the housing mating surface in the transverse direction perpendicular to the plugging direction. The second abutment surface bumps into the mating surface parallel to or in the transverse direction. In other words: when the operating element or connecting device is displaced from the first position in the direction of the second position, the locking element (as long as it is in its locking position) is displaced parallel to the transverse direction and encounters the housing mating surface, which lies in the displacement trajectory of the locking element (along the transverse direction) . The second abutment surface –also moved in the transverse direction –bumps into the mating surface. It may be provided, for example, that the locking element can be deflected by the release element parallel to a width direction perpendicular to the plugging direction and transverse direction, in particular to release the adjustment of the connecting device from the first position into the second position. In other words, the locking element can be transferred from the locking position into the unlocking position. For example, this deflection can take place radially inwards, towards an inner space of the plug connector housing. In particular, the deflection of the locking element makes it possible to guide the first abutment surface past the housing mating surface parallel to or in transverse direction. Thus, no blockage occurs due to the bumping of these surfaces and the connecting element can be moved from the first position in the second position.
[0031] In particular advantageously, a surface normal of the first abutment surface and / or housing mating surface is angled with respect to the transverse direction. In this way, the abutment surface is prevented or at least impeded from slipping off the housing mating surface. In particular, the housing mating surface forms an undercut for the locking element. Because of the angled configuration, a groove forming an undercut is preferably present compared to a non-angled configuration, wherein the groove is triangular. The triangular shape does not comprise an angle of over 90°; preferably, it does not comprise an angle of over 87° and, particularly preferably, it does not comprise an angle of over 85°.
[0032] If the first abutment surface bumps into the housing mating surface, the locking element is pushed by the angled surface normal, preferably against the direction in which the locking element can be deflected by the release element. In particular, this prevents or impedes that a large actuating force on the connecting device for adjusting the connecting device from the first position into the second position releases the blockage of the locking element on the housing in that the first abutment surface and the housing mating surface slip off from each other. A kind of self-locking is realized, since a displacement of the connecting device from the first position in the direction of the second position strengthens the coupling between the locking element and the plug connector housing or improves or enhances a form fit. In particular, in this way a reliable locking effect is achieved, which is also effective when high forces are applied to the connecting device.
[0033] The plug connector housing advantageously comprises an introduction bevel. The introduction bevel is configured subsequent to the housing mating surface in order to deflect the locking element when adjusting the connecting device from the second position into the first position. The introduction bevel can, for example, be aligned at least partially in a direction pointing towards the housing mating surface. Preferably, the deflection occurs parallel to the width direction towards the plug connector housing, for example radially inwards. In particular, the locking element is moved together with the connecting device from the first position into the second position. As a result, the locking element is moved out of the effective range of the release element, which leads to a resetting of the elastic deformation of the locking element after the locking element has been moved past the housing mating surface. When the connecting device is adjusted from the second position into the first position, the locking element (in particular after encountering the introduction bevel) is elastically deformed by the introduction bevel in order to be guided past the housing mating surface or a projection forming the housing mating surface, in particular past a projection radially inwards. If the connecting device is located in the first position again, the locking element is either held in the deflected position by the release element or returns to an undeflected position if the release element is not present, i.e. the plug connector is separated from the mating plug connector.
[0034] The connecting device or operating element preferably comprises a first leg, a second leg and a connecting section connecting the first leg and the second leg. In this way, in particular, a C-shape or U-shape of the connecting device or operating element is formed. The first leg and the second leg are supported on the plug connector housing and respectively comprise a locking element. Thus, the connecting device is configured, for example, as a lever element that can be rotated about the bearing points on the plug connector housing and / or, for example, as a slidable slider, in particular a linearly slidable slider. By arranging respectively one locking element on each of the legs, on the one hand a force distribution is achieved so that the load on the individual locking elements is reduced. On the other hand, a uniform force distribution is provided so that canting or tilting of the connecting device due to a merely one-sided blockage by the locking element is avoided.
[0035] The connecting device advantageously comprises a guide slot in which the mating engagement element can be contained. The plug connector is configured to guide the mating engagement element along the guide slot by adjusting the connecting device between the first position and the second position in order to displace the plug connector and mating plug connector relative to one another. The mating engagement element can be configured, for example, as a bolt or a pin. The guide slot can be configured, for example, on an outer side of the connecting device, and the mating engagement element, for example a bolt or a pin, can be arranged, for example, on a part of the plug connector housing and point radially inwards. For example, the reverse arrangement is also possible, e.g. formation of the guide slot on an inner side of the connecting device and a radially outwardly directed mating engagement element.
[0036] Thus, the plugging together of plug connector and mating plug connector is simplified or made possible. By moving the connecting device, plug connector and mating plug connector can be brought into a desired end position relative to each other. In addition, the guide slot can advantageously form a locking area for the mating engagement element in order to lock plug connector and mating plug connector in the end position.
[0037] The connecting device preferably comprises a third abutment surface on a side opposite to the locking element. In particular, the third abutment surface is located opposite to the locking element when viewed parallel to the transverse direction. The third abutment surface is used to abut against a further housing mating surface of the plug connector housing in order to prevent the connecting device from being adjusted beyond the first position. The prevention of adjustment beyond the first position is particularly effective when force is applied to the connecting device in the direction from the second position into the first position. The connecting device is thus reliably held in the first position.
[0038] It may be provided, for example, that the connecting device comprises an overpressure protection element. This can, for example, be configured to prevent the locking element from being overpressed or plastically deformed in the direction of the unlocking position. In this way, it is advantageously ensured that the –preferably delicate –locking element is damaged and / or plastically deformed, for example when the connecting device is mounted on the plug connector housing or when the connecting device, which is initially separate from the plug connector housing, is being transported. In this way, an overly strong deflection of the locking element in the direction of the unlocking position, whether caused manually or by the release element (e.g. when the plug connector is placed onto the mating plug connector in a tilted way) can be advantageously avoided or limited. The lifetime of the locking element is advantageously increased.
[0039] The overpressure protection element can, for example, act as a stop element for the locking element, in particular in the event of a displacement of the locking element in the direction from the locking position into the unlocking position, e.g. radially inwards and / or parallel to the rotation axis.
[0040] The overpressure protection element can, for example, be configured radially within the locking element on the connecting device.
[0041] The overpressure protection element can, for example, be configured –in particular with regard to the transverse direction –as an extension of the connecting device or as an extension of an (inner) wall of the connecting device. This wall can overlap with the locking element. The wall can be configured to be robust in comparison to the locking element, in particular be connected with the connecting device at more than one point or be stiff or resistant to bending.BRIEF DESCRIPTION OF THE DRAWINGS
[0042] In the following, embodiments of the invention are described in detail with reference to the accompanying drawings. Shown in the drawing is:
[0043] Figure 1 a schematic view of a plug connector assembly according to an embodiment of the present invention in a first state,
[0044] Figure 2 a schematic view of a plug connector assembly according to an embodiment of the present invention in a second state,
[0045] Figure 3 a schematic view of a connecting device of a plug connector according to an embodiment of the present invention,
[0046] Figure 4 a first schematic detailed view of the plug connector according to the embodiment of the present invention,
[0047] Figure 5 a second schematic detailed view of the plug connector according to the embodiment of the present invention,
[0048] Figure 6 a third schematic detailed view of the plug connector according to the embodiment of the present invention, and
[0049] Figure 7 a fourth schematic detailed view of the plug connector according to the embodiment of the present invention.DETAILED DESCRIPTION OF EMBODIMENTS
[0050] Preferably, all the same components, elements and / or units are provided with the same reference signs in all figures.
[0051] The term “comprise” is used synonymously with the term “include” , unless otherwise stated.
[0052] Figures 1 and 2 schematically show a plug connector assembly 10 according to an embodiment of the present invention. The plug connector assembly 10 comprises a plug connector 1 and a mating plug connector 2. The plug connector 1 is configured to be plugged together with the mating plug connector 2 along a plugging direction z. The plugging direction z together with a width direction x and a transverse direction y form a Cartesian coordinate system.
[0053] The plug connector 1 comprises a plug connector housing 3. Electrical contact elements, for example, are contained in the plug connector housing 3. The mating plug connector 2 comprises a mating plug connector housing 5, in which for example mating contact elements are contained. The contact elements and the mating contact elements are for example electrically connected when plug connector 1 and mating plug connector 2 are plugged together. This electrical connection is created in particular by plugging them into each other. Here, predefined plug-in forces must be overcome, which make it difficult to plug plug connector 1 and mating plug connector 2 together or make this impossible for normal humanly applicable forces or can lead to canting when applying the plug force.
[0054] The plug connector 1 therefore comprises a connecting device 4 coupled with the plug connector housing 3. The connecting device 4 is supported at bearing points 17 on the plug connector housing 3 and is configured to connect and / or lock plug connector 1 and mating plug connector 2. This is to be understood in particular as meaning that the connecting device 4 facilitates or enables or simplifies plugging together and / or locking plug connector 1 and mating plug connector 2. Figure 1 shows a first position K1 of the connecting device 4, wherein in the first position K1 the plug connector 1 and the mating plug connector 2 are arranged adjacent to each other but not yet fully plugged together. Figure 2 shows a second position K2 of the connecting device 4, wherein in this position plug connector 1 and mating plug connector are positioned in a relative end position to each other. The plug connection is established here.
[0055] The plug connector housing 3 is configured in particular in such a way that it covers electrical lines 18 and enables a defined cable outlet, rightwards as shown in Figures 1 and 2.
[0056] Here, by way of example, the plug connector 1 is configured as an external plug. The plug connector 1 or the plug connector housing 3 is configured here, by way of example, to contain the mating plug connector 2 or the mating plug connector housing 5 or a collar of the mating plug connector housing 5, in particular within itself.
[0057] The connecting device 4 comprises a guide slot 15, in which a mating engagement element 6 of the mating plug connector 2 is guided. The mating engagement element 6 is configured, for example, as a bolt or pin or projection. The plug connector 1 is configured to guide the mating engagement element 6 along the guide slot 1) by adjusting the connecting device 4 between the first position K1 and the second position K2. Through the contour of the guide slot 15, a displacement of the plug connector 1 in the plugging direction z towards the mating plug connector 2 takes place, so that a relative end position of plug connector 1 and mating plug connector 2 is achieved.
[0058] The connecting device 4 is shown schematically in Figure 3. The connecting device 4 comprises a first leg 4a, a second leg 4b and a connecting section 4c connecting the first leg 4a and the second leg 4b. In this way, the connecting device 4 is an essentially C-shaped lever assembly. The first leg 4a and the second leg 4b are respectively supported on the plug connector housing 3, wherein the support at bearing points 17 is performed in such a way that the connecting device 4 can be rotated about a rotation axis 100 parallel to the width direction x. Thus, the connecting device 4 can be rotated between the first position K1 and the second position K2. In this example, the connecting device 4 thus represents a rotatable lever 19. Alternatively or additionally, the connecting device 4 can also be a longitudinally slidable slider.
[0059] As described above, the rotation of the connecting assembly 4 from the first position K1 to the second position K2 is intended to displace the plug connector 1 relative to the mating plug connector 2 and, in particular, to establish electrical contact connections. To ensure that the connecting device 4 cannot be moved when bringing together is not desired (e.g., when the plug connector has not yet been placed onto the mating connector) , a locking element 7 is provided here as an example respectively on each leg 4a, 4b. In principle, it is also conceivable that only a single locking element 7 is provided on the connecting device 4. The locking element 7 (here: the two locking elements 7) are displaceable between a locking position S1 (see e.g. Fig. 2, 3, 4, 5, 7) and an unlocking position S2 (see Fig. 5) . The connecting device 4 is held in the first position K1 by the locking elements 7. The connecting device 4 can only be released by a release element 13 of the mating plug connector 2, for which the plug connector 1 must be premounted on a mating plug connector 2.
[0060] Several contact planes are provided for the proper function of the locking element 7, which allow reliable locking of the connecting arrangement 4 in the first position K1 and release of the adjustability of the connecting arrangement 4. The locking element 7 comprises a first abutment surface 8 and a second abutment surface 11. In addition to the locking element 7, the connecting device 4 also comprises a mating surface 12. The second abutment surface 11 and the mating surface 12 are formed by a slit-shaped recess 14 of the connecting device 4 or are separated from each other and thus represent boundary surfaces of the slit-shaped recess 14. The locking element 7 is preferably configured to be elastically reversible. By way of example, it is provided here that the locking element 7 is in the locking position S1 in the force-free state or in a force-free basic state. It is exemplarily provided here that the locking element 7 is configured as a cantilever, which extends essentially in the plugging direction z and here exemplarily comprises the largest dimension along the plugging direction z, in particular when the connecting device is in the first position. The cantilever is shaped by the slit-shaped recess 14 on an edge area of the respective legs 4a, 4b of the connecting arrangement 4.
[0061] Due to the described configuration of the locking element 7, it is extremely pliable. Thus, there is a simple deformability and a low-force displaceability of the locking element 7, e.g. beginning from the locking position S1 into the unlocking position S2. This allows releasing the movability of the connecting device 4 by deflecting or elastically deforming the locking element 7 (from the locking position S1 into the unlocking position S2) in a simple manner. However, despite the pliability, a reliable locking effect is achieved by the locking element 7. This is described in greater detail below together with Figures 4 to 6.
[0062] In order to prevent overpressing or plastic deformation of the locking element 7, here as an example in the direction of the unlocking position S2, an overpressure protection element 24 is arranged or configured on the connecting device 4 (see, for example, Fig. 3 and 5) . In this exemplary embodiment, the overpressure protection element 24 is configured as an example integrally with the connecting device 4, wherein mounting of an initially separate overpressure protection element 24 on the connecting device 4 is also conceivable. In this -merely exemplary -embodiment, it is provided that the overpressure protection element 24 is arranged radially inside or further inward (in relation to an inner space of the plug connector 1) with respect to the locking element 7. It overlaps with the locking element 7. During a displacement in the direction of the unlocking position S2 (here: radially inwards, parallel to the width direction x) after a defined distance, which does not yet cause any plastic deformation of the locking element 7, the locking element 7 meets the overpressure protection element 24 and is hindered by it from further displacement in the direction of the unlocking position S2 or blocked by it. Here, the overpressure protection element 24 is configured, by way of example, as a type of lengthened (inner) wall of the leg 4a, 4b belonging to the respective locking element 7. This (inner) wall is spaced apart from the locking element (in its locking position S1) in the area of the locking element 7, so that the locking element 7 can move freely. The overpressure protection element 24 extends here as an example (viewed in the plugging direction z) approximately from the free end of the locking element 7 along approximately 50%to 80%of the extension length of the locking element 7. Other dimensions or configurations of the overpressure protection element 24 are also conceivable.
[0063] Figures 4 to 7 respectively show different detailed views of the plug connector 1, wherein in particular the function of the locking element 7 is shown. Figure 4 schematically shows the connecting device 4 in the third position K3, which lies between the first position K1 and the second position K2, wherein the connecting device 4 in Fig. 4 is locked by the locking element 7 in its locking position S2 or is hindered from displacement into the second position K2.
[0064] Figure 5 schematically shows the process of releasing by deforming the locking element 7 by means of the release element 13. Without external forces, the locking element 7 is here for example in the locking position S1. The release element 13, which is arranged on the mating plug connector, can deflect the locking element 7 into the unlocking position S2, which is achieved in particular by elastic deformation of the locking element 7.
[0065] Figure 6 schematically shows an intermediate position of the connecting device 4 between the first position K1 and the second position K2, wherein the locking element 7 has previously been deflected by the release element 13.
[0066] A housing mating surface 9 is configured on the plug connector housing 3. In order to prevent the connecting device 4 from being adjusted from the first position K1 to the second position K2, the first abutment surface 8 can be abutted against the housing mating surface 9 and the second abutment surface 11 against the mating surface 12. If the connecting device 4 is in the first position K1 as shown in Figure 1 and is to be adjusted from the first position K1 to the second position K2 for example by an actuating force from a user, although the locking element 7 is in the locking position S1 and thus has a locking effect, then the first abutment surface 8 abuts against the housing mating surface 9 in the transverse direction y (perpendicular to the rotation axis 100) . The connecting device 4 is then located in a third position K3 (see Fig. 4) . The third position K3 can be very close to the first position K1. A further move of the connecting device 4 in the direction of the second position K2 leads to an (elastic) deformation of the locking element 7, which -here in the area of its free end -already abuts against the housing mating surface 9 and is blocked by it. If the connecting device is moved further in the direction of the second position K2, i.e. beyond the third position K3, then the connecting device 4 reaches a fourth position K4. In the fourth position K4, the second abutment surface 11 abuts against the mating surface 12 parallel to the transverse direction y. The fourth position K4 is shown schematically in Figure 7. The locking element 7 is now clamped between the housing mating surface 9 and the mating surface 12 in the transverse direction y, provided it is in its locking position S1. It can therefore not be deformed any further relative to the connecting device parallel to the transverse direction y. In this way, plastic deformation is excluded and the locking effect is increased. At the same time, the easy and low-force displaceability (here: transverse to the clamping direction or transverse direction y) is maintained.
[0067] A slit width b of the slit-shaped recess 14 is formed in such a way that the locking element 7 is not plastically deformed when the second abutment surface 11 abuts against the mating surface 12. Thus, no plastic deformation takes place when the connecting device 4 is arranged in the fourth position K4. In particular, the slit width b of the slit-shaped recess 14 is at most 2 mm.
[0068] The first abutment surface 8 and the housing mating surface 9 lead to a blockage of the connecting device 4. To compensate for the pliability of the locking element 7, the locking element 7 can be abutted against the mating surface 12 of the connecting device 4. Due to the abutment of the second abutment surface 11 of the locking element 7 against the mating surface of the connecting device 4 and the stability achieved in this way, the simple deformability of the locking element 7 is not detrimental to the locking effect. To this end, the deformability allows the locking element 7 to be easily deflected to release the connecting device 4.
[0069] For example, a surface normal of the first abutment surface 8 and / or the housing mating surface 9 is angled with respect to the transverse direction y in order to prevent or at least impede the first abutment surface 8 from slipping off the housing mating surface 9. If a force is applied to the connecting device 4, by means of which the connecting device 4 is to be displaced into the second position K2, then the first abutment surface 8 is pressed against the housing mating surface 9, whereby the connecting device 4 is held in the first position K1 or close to the first position K1, and in any case cannot be moved beyond the fourth position K4. Due to the angled arrangement of these surfaces which was described above, slipping off and thus unintentional release of the connecting device 4 is prevented or at least impeded. Rather, due to the angled arrangement, in the event of said force being applied to the connecting device 4, the locking element 7 is displaced outwards in the width direction x and thus against the direction in which the locking element 7 would have to be displaced to release the connecting device. Preferably, even a self-locking effect takes place, which increases the locking effect as the force applied increases. In particular, the surfaces are shaped in the opposite direction to a removal bevel.
[0070] In order to reliably hold the connecting device 4 in the first position K1 or to prevent it from being overpressed beyond the first position K1, it is also preferably provided that the connecting device 4 cannot be moved substantially beyond the first position K1 when moving in a direction from the second position K2 into the first position K1. For this purpose, the connecting device 4 comprises a third abutment surface 22 on a side opposite to the locking element 7. In particular, the third abutment surface 22 is located opposite to the locking element 7 when viewed parallel to the transverse direction y. The third abutment surface 22 is used for abutment against a further housing mating surface 23 of the plug connector housing 3. This blocks adjustment of the connecting device 4 beyond the first position K1 (in the direction of displacement from the second position K2 into the first position K1) . The connecting device 4 is thus reliably held in the first position K1.
[0071] The locking element 7 can be deflected by the release element 13 of the mating plug connector 2 in order to prevent at least abutment of the first abutment surface 8 against the housing mating surface 9. In this way, adjustment of the connecting device 4 from the first position K1 into the second position K2 is not locked. Beginning from the locking position S1, the locking element 7 can be deflected by the release element 13 parallel to the width direction x or parallel to the rotation axis 100, here in particular inwards or radially inwards, in order to reach the unlocking position S2, which is shown in Figure 5. The deflection takes place by elastic deformation of the locking element 7, which can be achieved easily and with little force, in particular without force when actuating the connecting device, due to the pliability of the locking element 7. Due to the configuration of the locking element 7, in particular due to its configuration as a cantilever, and the merely low forces that are required for displacement into the unlocking position, the release element 13 can also be designed or configured with small dimensions and thus save valuable space. At the same time, the release element 13 can be configured to be robust and stable and resistant to bending or stiff, so that the risk of damage to the release element 13 during handling of the mating plug connector 2 is minimized.
[0072] A recess 21 or a type of slot is provided between the housing mating surface 9 and an adjacent wall 20 of the plug connector housing 3. The recess 21 extends in particular parallel to the transverse direction y. If the locking element 7 is in the unlocking position S2, the locking element 7 is guided through the recess 21 or passing through the recess 21 or along the recess 21 or groove or slot past the housing mating surface 9 and the adjacent wall 20 when the connecting device 4 is moved between the first position K1 and the second position K2.
[0073] If the locking element 7 is elastically deformed and in this way (here only by way of example) deflected (here: radially) inwards in or parallel to the width direction x, the first abutment surface 8 can be moved past the housing mating surface 9 and the connecting device 4 can be adjusted into the second position K2. The locking element 7 returns to its initial position due to elastic restoring forces as soon as no more external influences act on the locking element 7.
[0074] Here, for example, the housing mating surface 9 is arranged on a projection pointing radially inwards. The projection with the housing mating surface 9 is arranged here, by way of example, on an outer wall or an outer wall element of the plug connector housing 3. The release element 13 and the mating engagement element 6 are guided between this outer wall or the outer wall element and an inner wall of the plug connector housing 3 during the plugging process. Outer wall and inner wall can, for example, delimit a through opening, which extends in particular along the plugging direction z. The recess 21 extends between the outer wall and the inner wall.
[0075] In order to avoid a blockage of the locking element 7 when the connecting device 4 is moved from the second position K2 into the first position K1, the plug connector housing 3 comprises an introduction bevel 16, which is shown in particular in Figure 6. The introduction bevel 16 is configured subsequent to the housing mating surface 9 in order to deflect the locking element 7 when adjusting the connecting device 4 from the second position K2 into the first position K1. Thus, there is no blockage in this direction of movement of the connecting device 4. Rather, the locking element 7 is deflected elastically by the introduction bevel 16, so that the first abutment surface 8 is guided past the housing mating surface 9. Here too, the overpressure protection element 24 can, for example, prevent unintentional plastic deformation of the locking element 7. In addition, the locking element 7 may comprise, for example, a corresponding radius which interacts with the introduction bevel and supports a deflection of the locking element 7. This radius or this further deflection bevel can be configured here only as an example on the second abutment surface 11 in the area of the free end of the locking element. If the connecting device 4 is located again in the first position K1, the locking element 7 returns, preferably automatically by the elastic restoring force, either -if the release element 13 is not present -to the initial position (here, for example, the locking position S1) and blocks any excessive adjustment of the connecting device 4 out of the first position K1, or -if the release element 13 is present -remains in the deflected position (unlocking position S2) due to the release element 13.
Claims
1.Plug connector (1) configured to be plugged together with a mating plug connector (2) along a plugging direction (z) , the plug connector (1) comprising:-- a plug connector housing (3) ,-- a connecting device (4) coupled with the plug connector housing (3) , in particular installed on the plug connector housing (3) , configured to connect and / or lock plug connector (1) and mating plug connector (2) ,-- in particular wherein a width direction (x) extends perpendicular to the plugging direction (z) and a transverse direction (y) extends perpendicular to the width direction (x) and perpendicular to the plugging direction (z) ,-- wherein the connecting device (4) is adjustable between a first position (K1) and a second position (K2) and is configured to couple with a mating engagement element (6) of the mating plug connector (2) in order to displace the plug connector (1) towards the mating plug connector (2) when the connecting device (4) is adjusted from the first position (K1) into the second position (K2) , in particular parallel to the plugging direction (z) ,-- in particular wherein the connecting device (4) is configured as a lever (19) rotatable about a rotation axis (100) preferably parallel to the width direction (x) or as a slider, preferably linearly, slidable,-- wherein the connecting device (4) comprises a locking element (7) , in particular an elastically reversibly deflectable locking element, which is displaceable between a locking position (S1) and an unlocking position (S2) ,-- wherein the locking element (7) comprises a first abutment surface (8) for abutment against a housing mating surface (9) of the plug connector housing (3) and a second abutment surface (11) for abutment against a mating surface (12) of the connecting device (4) in order to prevent adjustment of the connecting device (4) from the first position (K1) into the second position (K2) in the locking position (S1) , and-- wherein the locking element (7) can be deflected by a release element (13) of the mating plug connector (2) into the unlocking position (S2) in order to prevent at least abutment of the first abutment surface (8) against the housing mating surface (9) so as not to lock adjustment of the connecting device (4) from the first position (K1) into the second position (K2) .2.Plug connector (1) according to the preceding claim,wherein, in the locking position (S1) of the locking element (7) , when the connecting device (4) is adjusted from the first position (K1) in the direction of the second position (K2) , in a third position (K3) , the first abutment surface (8) abuts against the housing mating surface (9) and the second abutment surface (11) does not abut against the mating surface (12) ,wherein the locking element (7) is configured such that in the event of a further adjustment of the connecting device (4) in the direction of the second position (K2) , in particular after an adjustment by at most 5° along a rotation direction or about the rotation axis (100) , in a fourth position (K4) , the first abutment surface (8) abuts against the housing mating surface (9) and the second abutment surface (11) abuts against the mating surface (12) ,in particular in such a way that a further adjustment of the connecting device (4) in the direction of the second position (K2) is blocked.3.Plug connector (1) according to one of the preceding claims,wherein the locking element (7) is deflected parallel to the width direction (x) during the displacement from the locking position (S1) into the unlocking position (S2) ,in particular radially inwards in the direction of the plug connector housing (3) .4.Plug connector (1) according to one of the preceding claims,wherein a recess (21) is provided between the housing mating surface (9) and an adjacent wall (20) of the plug connector housing (3) , which recess extends in particular parallel to the transverse direction (y) ,wherein the locking element (7) can be guided through the recess (21) past the housing mating surface (9) and the adjacent wall (20) in the unlocking position (S2) .5.Plug connector (1) according to one of the preceding claims,wherein the second abutment surface (11) and the mating surface (12) are formed by a slit-shaped recess (14) of the connecting device (4) .6.Plug connector (1) according to the preceding claim,wherein a slot width (b) of the slit-shaped recess (14) is at most 2 mm,and / orwherein the slit-shaped recess (14) is formed such that the locking element (7) is not plastically deformed when the second abutment surface (11) abuts against the mating surface (12) .7.Plug connector (1) according to one of the preceding claims,wherein the locking element (7) is configured as a cantilever, which extends in particular parallel to the plugging direction (z) .8.Plug connector (1) according to one of the preceding claims,wherein the locking element (7) comprises the largest dimension parallel to the plugging direction (z) , in particular when the connecting device (4) is in the first position (K1) .9.Plug connector (1) according to one of the preceding claims,wherein for preventing the adjustment of the connecting device (4) from the first position (K1) to the second position (K2) , the first abutment surface (8) bumps into the housing mating surface (9) parallel to the transverse direction (y) and the second abutment surface (11) bumps into the mating surface (12) parallel to the transverse direction (y) ,wherein the locking element (7) can be deflected by the release element (13) parallel to the width direction (x) .10.Plug connector (1) according to one of the preceding claims,wherein a surface normal of first abutment surface (8) and / or housing mating surface (9) is angled with respect to the transverse direction (y) , in particular in order to prevent or at least impede the abutment surface (8) from slipping off the housing mating surface (9) .11.Plug connector (1) according to one of the preceding claims,wherein the plug connector housing (3) comprises an introduction bevel (16) configured subsequent to the housing mating surface (9) in order to deflect the locking element (7) when the connecting device (4) is adjusted from the second position (K2) into the first position (K1) ,in particular to deflect it parallel to the width direction (x) towards the plug connector housing (3) .12.Plug connector (1) according to one of the preceding claims,wherein the connecting device (4) comprises a first leg (4a) , a second leg (4b) and a connecting section (4c) connecting the first leg (4a) and the second leg (4b) , wherein the first leg (4a) and the second leg (4b) are supported on the plug connector housing (3) and respectively comprise a locking element (7) .13.Plug connector (1) according to one of the preceding claims,wherein the connecting device (4) comprises a guide slot (15) in which the mating engagement element (6) is able to be contained, wherein the plug connector (1) is configured to guide the mating engagement element (6) along the guide slot (15) by adjusting the connecting device (4) between the first position (K1) and the second position (K2) in order to displace plug connector (1) and mating plug connector (2) relative to each other.14.Plug connector (1) according to one of the preceding claims,wherein the connecting device (4) comprises a third abutment surface (22) on a side opposite to the locking element (7) , in particular when viewed parallel to the transverse direction (y) , for abutment against a further housing mating surface (23) of the plug connector housing (3) in order to prevent adjustment of the connecting device (4) beyond the first position (K1) , in particular when force is applied in the direction from the second position (K2) into the first position (K1) .15.plug connector assembly (10) , the plug connector assembly (10) comprising:-- a plug connector (1) according to one of the preceding claims,-- a mating plug connector (2) , the mating plug connector (2) comprising:---- a mating plug connector housing (5) ,---- a mating engagement element (6) ,---- a release element (13) configured to deflect the locking element (7) of the connecting device (4) by elastic deformation.
Citation Information
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