Electrical connector with anti-vibration mechanism

Abstract

The present invention relates to an electrical connector (3) and an electrical assembly (1) for connection to a mating electrical connector (5). The electrical connector of the present invention comprises two parts (15), namely an inner part (17) and an outer part (19), wherein one of the two parts (15) is configured to be connected to an electrical conductor (11), and the other of the two parts (15) is configured to be connected to the mating electrical connector (5), wherein the two parts (15) are coaxially and rotatably connected to each other, and wherein the electrical connector (3) further comprises a self-locking mechanism (57) configured to prevent one of the two parts (15) from rotating relative to the other of the two parts (15) in a first circumferential direction (59), and to allow one of the two parts (15) to rotate relative to the other of the two parts (15) in a second circumferential direction (61) opposite to the first circumferential direction (59).

Description

Technical Field

[0001] This invention relates to electrical connectors and electrical components. Background Technology

[0002] In various applications, such as aerospace, electrical connectors are exposed to vibration. However, even under harsh environmental conditions, a robust connection between the electrical connector and its mating counterpart is required.

[0003] Various techniques, such as threaded locks or cable ties, are known in the art to ensure that fasteners do not loosen under vibration and to maintain a stable electrical connection throughout the lifespan of the electrical connector.

[0004] Therefore, the disadvantages of existing technical solutions are increased installation time and the need for special tools for installation and maintenance.

[0005] Other existing technological solutions use hardened sealing fluids. However, these sealing fluids need to be removed for inspection and maintenance, which is time-consuming and expensive. Summary of the Invention

[0006] Therefore, a connector is needed that is easy to maintain and also facilitates vibration-proof connection with mating connectors.

[0007] This requirement is addressed by an electrical connector comprising two parts, an inner part and an outer part, one of which is configured to connect to an electrical conductor, and the other of which is configured to connect to a mating electrical connector. The two parts are coaxially and rotatably connected to each other, and the electrical connector further includes a self-locking mechanism configured to prevent one of the two parts from rotating relative to the other in a first circumferential direction, and to allow one of the two parts to rotate relative to the other in a second circumferential direction opposite to the first circumferential direction.

[0008] The above objective is achieved by the electrical component of the present invention, which includes the electrical connector of the present invention and a mating electrical connector configured to connect to the electrical connector.

[0009] The advantage of the electrical connector of this invention is that the self-locking mechanism allows for continuous self-locking, i.e., locking of the two components relative to each other, rather than being limited to a set of discrete positions of the ratchet mechanism. Therefore, the self-locking mechanism can ultimately eliminate the risk of recoil between the two components. The self-locking mechanism can also be called a self-locking flywheel mechanism.

[0010] When one of the two components rotates relative to the other, depending on the direction of rotation, the rotation can either reach any rotational position of the two components relative to each other, or be momentarily stopped at the current rotational position of the two components relative to each other without any backlash or clearance. Therefore, the electrical connector of the present invention is secured to prevent the two components from rotating relative to each other. This prevents loosening of the connection between the electrical connector and the mating electrical connector.

[0011] The invention can be further improved with optional features, which can be arbitrarily combined with each other in different embodiments of the electrical connector of the invention described below. In further embodiments, several optional features may be omitted. Each of the following embodiments is advantageous in itself.

[0012] The self-locking mechanism may include at least one resiliently deflectable locking element that presses against a locking surface in a radial direction. The locking surface is the surface of one of the two components facing the other. The radial direction may be radially inward or radially outward. The locking element may be fixed relative to the component opposite the locking surface.

[0013] In an advantageous embodiment, the at least one resiliently deflectable locking element can be pressed against one of the inner surface of the outer component and the outer surface of the inner component. Therefore, the locking member can be fixed relative to either the inner or outer component. When the locking surface is formed by the inner surface of the outer component, the radial direction can point outward from the center of the two components; or when the locking surface is formed by the outer surface of the inner component, the radial direction can point towards the center.

[0014] The advantage of the at least one resiliently deflectable locking element is that one of the two components (preferably the inner component) is resiliently held relative to the other of the two components (preferably the outer component).

[0015] In different embodiments, the external component may be one of two components, which is elastically held relative to the internal component, which is the other of the two components.

[0016] The at least one elastic locking element is preferably a spring, particularly a leaf spring. The spring may include a bent section and may be L-shaped.

[0017] The at least one resilient locking element may be torsionally attached to one of the two components at a first end of the at least one resilient locking element, and may slidably abut against the other of the two components at a second end of the at least one resilient locking element opposite to the first end, wherein the first end is positioned further away than the second end in the second circumferential direction.

[0018] This allows for resistance to rotation in the first circumferential direction and allows rotation in the opposite direction, as the second end is slidably pulled along the locking surface during the spring's movement in the second circumferential direction. In the opposite direction, i.e., along the first circumferential direction, the edge of the spring, particularly the independent edge, is pushed at an angle against the locking surface, causing the edge of the spring to bite into the material of the locking surface.

[0019] The electrical connector can be further improved by providing multiple locking elements, wherein the locking elements are spaced apart from each other in the circumferential direction. Thus, the effect of preventing one rotational movement of the two components relative to each other while allowing rotation in opposite directions can be achieved by two or more locking elements, for example, by four locking elements arranged equidistantly around the periphery of one of the two components, particularly the inner component. Therefore, the resistance during movement of one of the two components relative to the other in the first circumferential direction is the sum of all the locking elements provided in the electrical connector.

[0020] In one embodiment, one of the two components may be an internal component, while the other may be an external component. In another embodiment, one of the two components may be an external component, while the other may be an internal component.

[0021] It is advantageous if the locking surface is flat, i.e., smooth, planar, without ripples or wrinkles. However, if the locking surface is the outer surface of an internal component, it may have a raised curvature, or if the locking surface is the inner surface of an external component, it may have a recessed curvature. Such a flat locking surface allows the at least one locking element to slide on the locking surface during movement in the second circumferential direction.

[0022] In one embodiment of the electrical connector of the present invention, the connector may further include at least one anti-rotation element disposed at one of the two components, the at least one anti-rotation element being configured to be connected to a conductor, wherein the at least one anti-rotation element is configured to engage with a complementary anti-rotation element of a mating electrical connector, and the engagement of the at least one anti-rotation element with the at least one complementary anti-rotation element prevents relative rotation between the one component and the mating electrical connector.

[0023] In one embodiment, one of the two components may be an inner component, wherein relative rotation between the inner component and the mating electrical connector can be prevented. In another embodiment, one of the two components may be an outer component, wherein relative rotation between the outer component and the mating electrical connector can be prevented.

[0024] A single anti-rotation element or multiple anti-rotation elements can be provided. The anti-rotation element or multiple anti-rotation elements prevent rotation of the component configured to be connected to the conductor. This has the advantage of protecting the conductor from twisting, which can damage the connection between a component and the conductor. The anti-rotation element can be formed as an anti-rotation tooth or similar structure, housed in a preferred complementary structure, such as a complementary recess. By providing multiple anti-rotation elements, the number of possible, achievable angular positions is increased, and the possible forces exerted by rotating one of the two components can be evenly distributed.

[0025] Furthermore, one of the two components can be radially and elastically centered within the other component via a self-locking mechanism. Therefore, the electrical connector also self-aligns relative to the central axis. It is particularly advantageous if multiple locking elements are provided such that the elastic deflection of one component relative to the other results in higher pressure generated by the locking element located on the side to which one component is deflected, and lower pressure generated by the locking element located on the opposite side. These pressures can thus compensate for each other, keeping the retaining force preventing one component from rotating relative to the other in the first circumferential direction constant.

[0026] In one embodiment, one of the two components may be an inner component that is elastically held in place relative to the interior of the outer component, preferably by abutting the free end of a deflectable locking element of the inner component.

[0027] In another embodiment, the free end of the deflectable locking element may abut against the inner surface of the outer component, thereby elastically centering the outer component relative to the inner component.

[0028] Therefore, the electrical connector of the present invention resists vibrations received and / or attenuated by locking elements or multiple locking elements.

[0029] The electrical connector of the present invention can be further improved because one of the two components configured to connect to the mating electrical connector may include at least one latching element configured to secure the electrical connector to the mating electrical connector by rotation of said one of the two components relative to the mating electrical connector.

[0030] As described above, if one of the two components, i.e., the one not connected to the conductor, is rotated, damage is not expected due to tilting. Preferably, at least two latching elements can be provided, and the electrical connector may also include more than two latching elements. The latching elements may be formed by a threaded structure, particularly by a wedge-shaped block having inclined surfaces that at least partially face each other, wherein during rotation, when the latching elements and mating latching elements engage, an axial force is generated that pulls the electrical connector toward the mating electrical connector, and vice versa.

[0031] If more than one latching element is provided, a corresponding number of mating latching elements can be provided at the mating electrical connector. The latching elements and mating latching elements can be arranged circumferentially at equal distances from each other. The spacing between adjacent latching elements can be large enough to allow the mating latching elements to pass through, wherein, before rotation, the mating latching elements can pass sideways, i.e., between two adjacent latching elements. Upon full insertion, the other of the two components rotates relative to the mating electrical conductor, causing the beveled surface of the latching element to approach the beveled surface of the mating latching element. The two beveled surfaces can abut against each other, slide along each other, and generate two component forces, at least one of which can be along the axial direction, thereby securing the electrical connector to the mating electrical connector.

[0032] In one embodiment, one of the two components may be an internal component, and the other of the two components may be an external component, wherein the external component may include at least one latching element.

[0033] In another embodiment, one of the two components may be an external component, such that the latching element is located at the internal component.

[0034] The electrical connector can be further improved by including a release collar mounted on one of the two components, wherein the release collar is rotatable relative to the two components, and wherein the release collar may include at least one lifting element configured to move between a locking element and a locking surface in a first circumferential direction.

[0035] The at least one lifting element can disengage from the self-locking mechanism by actuating the release collar, particularly by rotating the release collar along the first circumferential direction. It is advantageous to provide multiple lifting elements, more preferably an equal number of lifting elements and locking elements. Two or more lifting elements can preferably be arranged circumferentially at equal intervals.

[0036] The at least one lifting element may be formed by an extension that extends from the release collar in a direction parallel to the axial direction into the volume between one of the two components and the other of the two components, i.e., into the volume between the inner component and the outer component.

[0037] Preferably, the at least one lifting element is rigid compared to a resiliently deflectable locking element, such that when the release collar rotates in the first circumferential direction and causes the at least one locking element to rise away from the locking surface, the deflection of the lifting element does not occur or can be ignored.

[0038] In one embodiment, the at least one lifting element is movable below a corresponding resilient locking element in a second circumferential direction. Therefore, the lifting element can be moved to a rest position, wherein in the rest position, the at least one lifting element may be spaced apart from the resilient locking element and / or from the locking surface.

[0039] A release collar can be connected to one of the two components via a torsion spring. Therefore, the release collar can be elastically held in a rotational position by the torsion spring. The release collar can be connected to one of the two components, to which the at least one deflectable locking element is attached. Therefore, the release collar can be elastically held in a rotational position relative to the inner or outer component. Thus, the rotational position of the release collar can be set by the circumferential spring force of the torsion spring, such that the position of the release collar can deflect against torsion spring actuation, wherein, when no force is applied to the release collar, the position of the release collar can automatically move to an unbiased position relative to the component to which the deflectable locking element is attached and remain fixed in that position.

[0040] The electrical connector may also include a release stop that can be configured to restrict rotational movement of the release collar relative to one of the two components opposite the locking surface. Thus, the release stop can be configured to restrict rotation of the release collar relative to the outer component, and more generally, to restrict rotation of the release collar relative to the component to which the locking member is attached, i.e., the component opposite the locking surface. Rotational movement can be restricted between two distinct positions. In one embodiment, a stop protrusion or stop lug may be provided, which can be received and guided within a confined recess in the component to which the locking member is attached. Rotational movement may be restricted.

[0041] In a preferred embodiment, the radial movement of the release collar, particularly relative to the component to which the resiliently deflectable locking element is attached, preferably an external component, is limited to approximately 15 degrees. In another embodiment, the component may be an internal component. In other embodiments, rotational movement may be limited to an angle between 5 and 180 degrees.

[0042] In another embodiment of the electrical connector of the present invention, a torque setting device may be provided. The torque setting device may include an operating sleeve attached to one of the two components, wherein the torque setting device may be configured to indicate a preset torque exceeding that transmitted from the operating sleeve to the component of the two components to which the operating sleeve is attached. The operating sleeve may be attached to one of the two components configured to connect to a mating electrical connector. Therefore, torque may be applied to the other of the two components.

[0043] The torque setting device can be configured for manual operation of the electrical connector by the user. The torque setting device can provide an alarm signal generated based on the torque acting between the two parts of the electrical connector. The alarm signal can be provided in audible, tactile, or visual form. The alarm signal provides feedback to the user that the connector is properly tightened.

[0044] As described above, one or the other of the two components can be blocked, preferably the component configured to receive the conductor. The torque setting device can be configured to indicate a preset torque on the other or one of the two components, i.e., the component that is not blocked.

[0045] It is advantageous if the torque setting device includes at least one torque transmission member configured to release from the initial locked position against the elastic spring force if a predetermined torque is exceeded between the two components.

[0046] According to another example, the at least one torque transmission member may be formed of a support ball, such as a metal ball. In an exemplary embodiment, the elastic spring force may be provided by a wave spring. The initial locking position of the torque setting device may be provided by the interaction of such a support ball accommodated in a recess. This recess may be defined by its shape and / or depth. A threshold torque may be set by selecting a combination of a specific element providing the elastic spring force (e.g., a wave spring with a specific spring constant) and a recess with a specific shape and / or depth. A threshold torque is required to overcome the spring force that pushes the support ball into the recess and move the support ball out of the recess. Therefore, this threshold torque may represent a preset or predetermined torque.

[0047] The torque setting device may include three support balls, which can be received in corresponding recesses provided in the retaining ring. Any other number of support balls may be provided. The retaining ring may be received in a torsional rigidity within the locking collar, for example by a key and nut or other means to prevent rotation of the retaining ring relative to the locking collar. Preferably, an alarm signal is generated based on the torque acting between the two components.

[0048] The electrical connector can be improved so that a second locking position is provided by a torque setting device, which moves the torque transmission member from the initial locking position to the second locking position. The second locking position can prevent unintentional disengagement, such as by rotation or unintentional aggression.

[0049] In addition, a visual indicator component can be provided, which is visible from the outside of the electrical connector, wherein the position of the visual indicator component relative to the operating sleeve indicates that the torque setting device is in the initial locked position or the second locked position.

[0050] A visual indicator component can be attached to the release collar, preferably integrally. The visual indicator component extends axially from the release collar through a recess provided in the operating sleeve. This recess can be an additional release stop, which can also be configured to restrict rotational movement of the release collar relative to one of the two components opposite the locking surface. The permissible range of rotational movement of the release collar can be the same for both the release stop and the additional release stop.

[0051] The visual indicator component can typically be formed as a pin, lug, or longitudinal structure. A recess in the operating sleeve can provide radially extending portions facing each other in the circumferential direction, wherein a recess is provided between two preferred radially extending portions through which the visual indicator component extends. One of the radially extending portions can at least partially cover the visual indicator component. If the torque transmission component moves to the second locking position, the visual indicator component can preferably be located at the center of the recess.

[0052] In the initial locked position, the threshold torque is not applied to the operating sleeve. The visual indicator component can be positioned closer to the recess in the circumferential direction, or even at least partially covered by the radial extension of the operating sleeve. This positioning of the visual indicator component relative to the recess in the operating sleeve thus indicates the state of the torque setting device. This indication is provided in a visual and tactile manner, as it can be perceived both visually and tactilely.

[0053] In one embodiment of the electrical connector of the present invention, the torque setting device can be attached to one of the two components in a rotationally rigid manner until a predetermined torque is reached in the second circumferential direction. One of the two components may be, in particular, an external component. Therefore, when the predetermined torque is exceeded, the torque setting device and said one component can move relative to each other.

[0054] In another advantageous embodiment of the electrical connector of the present invention, the torque setting device may include a limiting stop configured to restrict rotational movement of the operating sleeve relative to one of the two components configured to connect to the mating electrical connector. In a preferred embodiment, this may be an external component. However, in different embodiments, the rotational movement of the operating sleeve may also be restricted relative to an internal component of the two components. The limiting stop may define an angular segment that may be the same as the angular segment defined by the initial locking position and the second locking position of the torque transmission member. Therefore, the torque setting device can operate within a predetermined rotational range.

[0055] The operating sleeve may also include a release ring configured to be in a released state in which the operating sleeve is rotationally rigidly connected to the release ring.

[0056] Therefore, the release ring can be configured to connect the operating sleeve to the release collar in a rotationally rigid manner, and rotate the release collar integrally with the release ring.

[0057] In the released state, the release ring can preferably be frictionally engaged with the release collar. The release ring can be configured to be compressed, wherein the compression of the release ring causes it to frictionally engage with the release collar.

[0058] If the compressed, i.e., friction-engaged release ring of this embodiment of the electrical connector rotates in the first circumferential direction, the at least one lifting element can move between the locking element and the locking surface, such that rotation of one of the two components relative to the other in the first circumferential direction is no longer prevented. This rotation of the compressed release ring can be achieved against a torsion spring. Simultaneously, the release ring, still frictionally engaged with the release collar, can be further configured to rotate the torque transmission device in the first circumferential direction, causing it to change from a second locked position to a first locked position.

[0059] As the release ring rotates further (while still in friction engagement), the operating sleeve is configured to abut against the other of the two components to rotate the other component in the first circumferential direction. This further rotation disengages the electrical connector from the mating electrical connector. Therefore, if the release ring of the operating sleeve is frictionally engaged with the release collar, the rotation of the release ring in the first circumferential direction releases the self-locking mechanism while simultaneously moving the torque setting device from the second locked position to the first locked position. This rotation is transmitted from the release ring to the release collar and the torque setting mechanism and may be limited to a finite angular range. This angular range may be approximately 15 degrees. This angular range may be exemplarily defined by at least one key received in a groove, wherein the at least one key can move circumferentially within the groove.

[0060] Furthermore, the release ring can have a normal state in which the release ring and the release sleeve can rotate relative to each other. The release ring can elastically widen or narrow. The release ring can be operated by two opposing lugs that can be pressed against each other to frictionally engage the release sleeve. The two opposing lugs can also serve as stops for the visual indicator component. In the second locked position of the torque setting device, the visual indicator component can be located between the two opposing lugs. This position can be achieved by a torsion spring adapted to be rotatably coupled to one component of the two parts configured to connect to a mating electrical connector. The torsion spring can be further coupled to the release sleeve.

[0061] In another embodiment of the electrical connector of the present invention, the release ring may be integrally formed with the operating sleeve. The release ring may be formed as an arc spanning an angle of more than 180°, wherein the release ring may preferably be integrally connected to the operating sleeve at the central portion of the arc. This connection may more preferably be integral. Attached Figure Description

[0062] Specific embodiments of the electrical connector of the present invention will now be described with reference to the accompanying drawings. In the drawings, the same technical features and features having the same technical effect will be indicated by the same reference numerals. The embodiments shown are purely exemplary.

[0063] The diagram shows:

[0064] Figure 1 This is a partial perspective sectional view of the electrical components of the present invention;

[0065] Figure 2 It is a cross-sectional side view of an electrical component, in which an electrical connector is connected to a mating electrical connector;

[0066] Figure 3 This is a detailed view showing the electrical connector of the self-locking mechanism;

[0067] Figure 4 This is a more detailed view of the electrical connector;

[0068] Figure 5 This is an exploded view of an electrical connector with a torque setting device;

[0069] Figure 6 yes Figure 5 A detailed view of the torque setting device of the electrical connector;

[0070] Figure 7 This is a detailed view of the operating sleeve;

[0071] Figure 8 It is the electrical connector where the torque setting device is in the initial locked position; and

[0072] Figure 9 The electrical connector with the torque setting device in the second locked position is shown. Detailed Implementation

[0073] Figure 1 An electrical assembly 1 is shown, including an electrical connector 3 and a mating electrical connector 5. The mating electrical connector 5 may include a busbar 7 and pins 9. The pins 9 are configured to connect to an electrical conductor 11; in particular, a flexible electrical conductor 13.

[0074] The electrical connector 3 for connection to the mating electrical connector 5 includes two parts 15. The two parts 15 are an inner part 17 and an outer part 19, wherein one part of the two parts 15 is configured to connect to the electrical conductor 11, and the other part of the two parts 15 is configured to connect to the mating electrical connector 5. In the illustrated embodiment, one part of the two parts 15 is the inner part 17, and the other part of the two parts 15 is the outer part 19.

[0075] The exploded view shows two components 15 coaxially connected relative to axis 21 and rotatable from each other.

[0076] The flexible electrical conductor 13 is terminated in the crimping sleeve 23. A low-resistance electrical contact 25 is provided within the crimping sleeve 23. This contact 25 establishes an electrical connection between the pin 9 and the internal component 17. The electrical connector 3 also includes an O-ring 27, which provides an environmental seal for sealing purposes.

[0077] To ensure stable resistance during use, any movement between pin 9 and internal component 17 must be eliminated at contact interface 29 (see [link]). Figure 4 Relative movement between pin 9 and internal component 17 may cause wear and corrosion at contact interface 29, which may lead to increased resistance. Movement between pin 9 and internal component 17 along axis 21 is prevented by external component 19, which will be described below.

[0078] To connect the electrical connector 3 to the mating electrical connector 5, and particularly to connect the external component 19 to the mating electrical connector 5, the electrical connector 3 includes at least one anti-rotation element 31, which is arranged in one of the two components 15 and configured to connect to the conductor 11. In the illustrated embodiment, the internal component 17 includes a plurality of anti-rotation elements 31. These anti-rotation elements 31 are provided in the form of anti-rotation teeth 33. These anti-rotation elements 31 are configured to engage with complementary anti-rotation elements 35 of the mating electrical connector 5.

[0079] The complementary anti-rotation element 35 is also formed as an anti-rotation tooth 33. When the anti-rotation element 31 engages with the complementary anti-rotation element 35, relative rotation between a component 15 (i.e., the internal component 17 in the illustrated embodiment) and the mating electrical connector 5 is prevented.

[0080] During the insertion of pin 9 into internal component 17, anti-rotation element 31 is positioned between corresponding complementary anti-rotation elements 35. These anti-rotation elements 31, 35 prevent rotational movement between internal component 17 and external component 19 when external component 19 rotates relative to internal component 17. To confirm proper engagement of anti-rotation elements 31, 35, a visual indicator strip 37 must be covered. In other embodiments, the visual indicator strip 37 may be provided in different forms, such as stripes, dots, different patterns, or even a detection device configured to output and warn signals and / or status signals representing correct or incorrect engagement of anti-rotation elements 31, 35.

[0081] Furthermore, one of the two components 15 configured to connect to the mating electrical connector 5, namely the external component 19, includes at least one latching element 39, which is configured to secure the electrical connector 3 to the mating electrical connector 5 by rotation of the one of the two components 15, 19 relative to the mating electrical connector 5.

[0082] Pin 9 includes four complementary latching elements 41, and external component 19 also includes a corresponding set of latching elements 39. Latching elements 39, 41 are blocks 43 with individual ramp surfaces 45. The pitch of each individual ramp surface 45 can be exemplarily approximately 5 mm.

[0083] The dimensions of the outer component 19 and the block 43 on pin 9 are such that the block 43 can slide between each other in only one orientation. The outer component 19 is adapted to move toward pin 9, thereby also moving the inner component 17 toward pin 9. The latching element 39 moves between complementary latching elements 41 until the outer component 19 can rotate relative to pin 9. In this position, the anti-rotation element 31 engages with the complementary anti-rotation element 35 to prevent the inner component 17 from rotating relative to pin 9.

[0084] If the outer component 19 rotates, the ramp surface 45 begins to contact. Continued rotation pulls the outer component 19 toward the pin 9. This, in turn, pulls the inner component 17 toward the pin 9, because the shoulder 47 of the outer component 19 supports the protrusion 49 of the inner component 17. This is as follows Figure 2 As shown.

[0085] Rotation of the outer component 19 relative to pin 9 can continue until all axial clearances are eliminated, and the inner component 17 is clamped to the shoulder 47 of the outer component 19 and to the front face 51 of the inner component 17 (see...). Figure 1 Between the complementary anti-rotation elements 35 on the surface.

[0086] This continuous rotation is only possible when the anti-rotation element 31 engages with the complementary anti-rotation element 35, because otherwise the latching element 39 may not move behind the complementary latching element 41, but instead abut against the complementary latching element 41.

[0087] like Figure 2 As shown, the inner component 17 includes a circumferential nut 53 adapted to receive a spring clip (not shown) to prevent the inner component 17 from moving out of the outer component 19 in the insertion direction 55.

[0088] Reference Figure 3 The electrical connector 3 also includes a self-locking mechanism 57 configured to prevent one of the two components 15, particularly the inner component 17, from rotating relative to the other of the two components 15, particularly the outer component 19, in a first circumferential direction 59, and to allow the inner component 17 to rotate relative to the outer component 19 in a second circumferential direction 61 opposite to the first circumferential direction 59.

[0089] The self-locking mechanism 57 includes at least one resiliently deflectable locking element 63 that presses against the locking surface 65 in a radial direction 67. The radial direction 67 is radially inward, but in different embodiments, it can be radially outward.

[0090] Locking surface 65 is one of the two components 15 facing the other of the two components 15. Locking surface 65 is provided by inner component 17. Locking surface 65 is a flat surface 66. The illustrated embodiment includes four resiliently deflectable locking elements 63 arranged circumferentially at equal intervals.

[0091] The locking element 63 is stationary relative to the external component 19. The locking element 63 is a spring 69, specifically a leaf spring 71.

[0092] The resilient locking element 63 is torsionally attached to the external component 19 at its first end 73 and slidably abuts against the internal component 17 at its second end 75 opposite to the first end 73.

[0093] The first end 73 is positioned further away than the second end 75 in the second circumferential direction 61.

[0094] A set of four leaf springs 71 attached to the external component 19 is used to prevent the external component 19 from loosening under vibration. The leaf springs 71 elastically deform during assembly and apply a normal force 77 to the locking surface 65 of the internal component 17.

[0095] During rotation along the second circumferential direction 61, the leaf spring 71 is able to bend away from the locking surface 65. As a result, during the locking operation, the outer component 19 is able to rotate freely on the inner component 17.

[0096] If an attempt is made to rotate along the first circumferential direction 59, the leaf spring 71 "bites" into the locking surface, thereby preventing relative rotation between the outer part 19 and the inner part 17.

[0097] As described above, rotation between the pin 9 and the external component 19 is impossible because the relative rotation between the internal component 17 and the pin 9 is also prevented by the engagement of the anti-rotation element 31 and the complementary anti-rotation element 35. As a result, the engagement between the latching element 39 and the complementary latching element 41 (latching elements 39 and 41 include the ramp surface 45 on the pin 9 and the external component 19) is maintained, and the connection of the electrical assembly 1 is prevented from loosening once it is tightened.

[0098] In order for the outer component 19 to rotate relative to the inner component 17 in the first circumferential direction 59, and in order to unlock the electrical assembly 1, the leaf spring 71 must disengage from the locking surface 65.

[0099] Still refer to Figure 3 The electrical connector 3 also includes a release collar 79 mounted on one of the two components 15, wherein the release collar 79 is rotatable relative to both components 15. Furthermore, the release collar 79 includes at least one lifting element 81. Here, four lifting elements 81 are provided by the release collar 79. The lifting elements 81 are configured to move along a first circumferential direction 59 between the locking element 63 and the locking surface 65.

[0100] It can be seen that the lifting element 81 can move below the corresponding resilient locking element 63 in the second circumferential direction 61. In this position, the lifting element 81 is spaced apart from the resilient locking element 63. The same number of locking elements 63 and lifting elements 81 are provided.

[0101] Reference Figure 4 The release collar 79 is connected to one of the two components 15 via a torsion spring 83, specifically to the outer component 19. Therefore, the release collar 79 is elastically held in a rotational position by the torsion spring 83. It should be noted that... Figure 4 The release collar 79 is not shown, wherein the torsion spring 83 may be attached to the release collar 79 in a similar manner to the attachment to the external component 19, i.e., by means of the spring end receiving portion 85 that receives the end 87 of the torsion spring 83.

[0102] Reference Figure 3The diagram shows that the release collar 79 includes a release stop 88 configured to restrict rotational movement of the release collar 79 relative to the outer member 19. The release stop 88 of the release collar 79 is received within a release stop recess 90 of the outer member 19.

[0103] To disengage electrical connector 3 from mating electrical connector 5, release collar 79 rotates approximately 15 degrees in the first circumferential direction 59. This rotation is performed against the resistance of torsion spring 83. Lifting element 81 on release collar 79 lifts locking element 63 from locking surface 65. Then, while outer component 19 rotates further by approximately 45 degrees to disengage latch element 39 from complementary latch element 41, release collar 79 must remain in this position. Torsion spring 83 ensures that lifting element 81 is positioned at a distance from locking element 63.

[0104] Reference Figures 5 to 9 The torque setting device 89 will be described.

[0105] The rotation angle at which the ramp surface 45 of pin 9 contacts the external component 19 will vary depending on manufacturing tolerances; a fixed rotation cannot guarantee locking. A defined torque is a more reliable measure to ensure a secure lock between pin 9 and the external component 19. This ensures that axial clearance between components is eliminated and sufficient preload is applied to mitigate the risk of movement at the contact interface 29. To eliminate the need for tools (i.e., torque wrench type), a torque setting device 89 is provided to control the torque applied when locking the electrical connector 3 to the mating electrical connector 5. The torque setting device 89 is contained within the operating sleeve 91.

[0106] The torque setting device 89 is attached to the external component 19 via a washer 92 and a retaining ring 93. The operating sleeve 91 is configured to be manually operated by the user to the electrical connector 3, wherein the torque setting device 89 is configured to indicate, audibly and / or tactilely and / or visually, a preset torque exceeding that transmitted from the operating sleeve 91 to the external component 19.

[0107] The torque setting device 89 includes at least one torque transmission member 95. In the illustrated embodiment, three torque transmission members 95 are provided in the form of a set of ball bearings 97. The torque setting device 89 is configured to overcome the elastic spring force and move from the initial locked position 99 (see figure) if a predetermined torque is exceeded between the inner member 17 and the outer member 19. Figure 8 )release.

[0108] Torque setting device 89 provides a second locking position 101 (see Figure 9 The torque transmission member 95 moves from the initial locked position 99 to the second locked position 101. The second locked position 101 prevents the electrical connector 3 from accidentally disengaging from the mating electrical connector 5.

[0109] Figure 5 An exploded view of the electrical connector 3 of the present invention, including a torque setting device 89, is shown.

[0110] The torque setting device 89 includes a wave spring 103, which is compressed during the assembly of the electrical connector 3. The set of ball bearings 97 applies a load perpendicular to the surface of the external component via a ball bearing retainer 105. The ball bearing retainer 105 and the operating sleeve 91 are connected by a set of ball bearing keys 107 and grooves 109 disposed in the operating sleeve 91. These grooves 109 ensure that the operating sleeve 91, the ball bearing retainer 105, and the set of ball bearings 97 always rotate together in a rotationally rigid manner.

[0111] However, as the wave spring 103 is compressed, the ball support retainer 105 can translate in the axial direction 111 (relative to the operating sleeve 91). The outer component 19 is also keyed into the same groove 109 of the operating sleeve 91 via a set of protrusions 113. However, these protrusions 113 are smaller in the circumferential direction than the ball retainer key 107, thus allowing the outer component 19 to move relative to the operating sleeve 91 within an angular range 123 of approximately 15°.

[0112] from Figure 6 As can be seen, the ball support 97 can be located in a set of deep recesses 115 representing the unlocked state 117. At the other end of the angle range 123, they are located in a set of shallow recesses 119 representing the locked state 121.

[0113] Furthermore, a visual indicator component 125, visible from the outside of the electrical connector 3, is provided, wherein the position of the visual indicator component 125 relative to the operating sleeve 91 represents the torque setting device 89 being in an initial locked position 99 or a second locked position 101. (Comparison) Figure 8 and Figure 9 This is clearly evident.

[0114] The torque setting device 89 is attached to the external component 19 in a rotationally rigid manner until a predetermined torque is reached in the second circumferential direction 61.

[0115] In order to move from the unlocked state 117 to the locked state 121, the rotation of the external components must be stopped while the operating sleeve 91 continues to rotate. This allows the operating sleeve 91 and the ball support retainer 105 to rotate in combination.

[0116] If the preset torque is exceeded, the ball support 97 can be pushed upward along the sloping surface of the deep recess 115 in the fixed external component, thereby compressing the wave spring 103 in the axial direction 111. The ball support 97 then moves into the shallow recess 119 as it rotates further in the second circumferential direction 61.

[0117] The torque setting device 89 also includes a limit stop 126 configured to restrict the rotational movement of the operating sleeve 91 relative to the external component 19.

[0118] Figure 7 The operating sleeve 91 is shown in a separate view. The operating sleeve 91 includes a release ring 127 configured in a released state 129, wherein the operating sleeve 91 is rotationally rigidly connected to the release collar 79. Therefore, in the released state 129, the release collar 79 and the release ring 127 can be rotated together integrally. In the released state 129, the release ring 127 is frictionally engaged with the release ring 79. The release ring 127 has a normal state 131 (as shown in the image). Figure 7 As shown in the figure, in this normal state, the release ring 127 and the release sleeve 79 can rotate relative to each other. It can be seen from the figure that the release ring 127 is integrally formed with the operating sleeve 91.

[0119] To prevent accidental unlocking, the release ring 127 includes two tabs 129 on the operating sleeve 91. These tabs 129 must be clamped to create a frictional locking engagement between the operating sleeve 91 and the release ring 79. The operating sleeve 91 and the release ring 79 can then rotate together.

[0120] Figure Labels

[0121] 1 Electrical Components

[0122] 3 electrical connectors

[0123] 5. Matching electrical connectors

[0124] 7 busbars

[0125] 9-pin

[0126] 11 Electrical conductors

[0127] 13 Flexible electrical conductors

[0128] 15 parts

[0129] 17 Internal Components

[0130] 19 External Components

[0131] 21 axis

[0132] 23 Crimping sleeve

[0133] 25 electrical contacts

[0134] 27 O-ring

[0135] 29 contact section

[0136] 31 Anti-rotation element

[0137] 33 anti-rotation teeth

[0138] 35 Complementary anti-rotation element

[0139] 37 visual indicator belt

[0140] 39 latching elements

[0141] 41 Complementary latching element

[0142] 43 pieces

[0143] 45 slope surface

[0144] 47 Shoulders

[0145] 49 protrusions

[0146] 51 front face

[0147] 53 circumferential nut

[0148] 55 Insertion Direction

[0149] 57 Self-locking mechanism

[0150] 59 First week direction

[0151] 61 Second week direction

[0152] 63 Resiliently deflectable locking element

[0153] 65 Locking Surface

[0154] 66 flat surfaces

[0155] 67 Radial direction

[0156] 69 springs

[0157] 71 leaf spring

[0158] 73 First End

[0159] 75 Second End

[0160] 77 normal force

[0161] 79 Release Ring

[0162] 81 lifting components

[0163] 83 Torsion Spring

[0164] 85 Spring End Receiving Section

[0165] 87 Spring End

[0166] 89 Release stop

[0167] 89 Torque Setting Device

[0168] 90 Release stop recess

[0169] 91 operating sleeve

[0170] 92 Washer

[0171] 93 clasp

[0172] 95 Torque Transmission Components

[0173] 97 ball bearing

[0174] 99 Initial Lock Position

[0175] 101 Second initial locking position

[0176] 103 Wave Spring

[0177] 105 ball support retainer

[0178] 107 Ball Holder Key

[0179] 109 slots

[0180] 111 Axial Direction

[0181] 113 A group of protrusions

[0182] 115 deep concave part

[0183] 117 Unlocked

[0184] 119 Shallow concave part

[0185] 121 Locked state

[0186] 123 angle range

[0187] 125 visual indicator components

[0188] 126 Limit Stop

[0189] 127 release ring

[0190] 129 protrusion

Claims

1. An electrical connector (3) for connection to a mating electrical connector (5), the electrical connector (3) comprising two parts (15), the two parts (15) being an inner part (17) and an outer part (19), wherein, One of the two components (15) is configured to be connected to an electrical conductor (11), and the other of the two components (15) is configured to be connected to a mating electrical connector (5), wherein the two components (15) are coaxially and rotatably connected to each other, wherein the electrical connector (3) further includes a self-locking mechanism (57) configured to prevent rotation of one of the two components (15) relative to the other of the two components (15) in a first circumferential direction (59) to the current rotational position of the two components (15) relative to each other, and to allow rotation of one of the two components (15) relative to the other of the two components (15) in a second circumferential direction (61) opposite to the first circumferential direction (59); The self-locking mechanism (57) includes at least one spring (63, 69, 71) that presses against a locking surface (65) in the radial direction (67). The locking surface (65) is the surface of one of the two components (15) facing the other of the two components (15). Wherein, at least one spring (63, 69, 71) is torsionally attached to one of the two components (15) at a first end (73) of the at least one spring (63, 69, 71) and configured to slidably abut against the other of the two components (15) at a second end (75) of the at least one spring (63, 69, 71) opposite to the first end (73) to allow rotation in the second circumferential direction, wherein the first end (73) is positioned further in the second circumferential direction (61) than the second end; The edge of the at least one spring (63, 69, 71) is configured to bite into the material of the locking surface (65) to prevent rotation in the first circumferential direction.

2. The electrical connector (3) according to claim 1, wherein, A plurality of locking elements (63) are provided, wherein the locking elements (63) are spaced apart from each other in the circumferential direction (59, 61).

3. The electrical connector (3) according to claim 1 or 2, further comprising at least one anti-rotation element (31), said anti-rotation element being disposed in one of the two components (15) configured to connect to one of the electrical conductors (11), wherein, The at least one anti-rotation element (31) is configured to engage with the complementary anti-rotation element (35) of the mating electrical connector (5) and prevent relative rotation between the one component (15) and the mating electrical connector (5) by engaging the at least one anti-rotation element (31) with the at least one complementary anti-rotation element (35).

4. The electrical connector (3) according to claim 1 or 2, wherein, One of the two components (15) configured to be connected to the mating electrical connector (5) includes at least one latching element (39) configured to secure the electrical connector (3) to the mating electrical connector (5) by rotation of the one of the two components (15) relative to the mating electrical connector (5).

5. The electrical connector (3) according to claim 1 or 2, further comprising a release collar (79) mounted to one of the two components (15), wherein the release collar (79) is rotatable relative to the two components (15), and wherein, The release collar (79) includes at least one lifting element (81) configured to move between the spring (63, 69, 71) and the locking surface (65) in the first circumferential direction (59).

6. The electrical connector (3) according to claim 5, wherein, The release collar (79) is connected to one of the two components (15) via a torsion spring (83), and wherein the release collar (79) is elastically held in a rotational position by the torsion spring (83).

7. The electrical connector (3) according to claim 5, wherein, A release stop is provided, which is configured to restrict the rotational movement of the release collar (79) relative to one of the two components (15) opposite the locking surface.

8. The electrical connector (3) according to claim 5, wherein, A torque setting device (89) is provided, the torque setting device (89) including an operating sleeve (91) attached to one of the two components (15), wherein the torque setting device (89) is configured to indicate a preset torque exceeding that transmitted from the operating sleeve (91) to one of the two components (15) to which the operating sleeve (91) is attached.

9. The electrical connector (3) according to claim 8, wherein, The torque setting device (89) includes at least one torque transmission member (95) configured to release from the initial locked position (99) against the elastic spring force if a predetermined torque is exceeded between the two components (15).

10. The electrical connector (3) according to claim 9, wherein, The torque setting device (89) provides a second locking position (101) from which the torque transmission member (95) moves from the initial locking position (99) to the second locking position.

11. The electrical connector (3) according to claim 10, wherein, A visual indicator component (125) visible from the outside of the electrical connector (3) is provided, wherein the position of the visual indicator component (125) relative to the operating sleeve (91) represents the torque setting device (89) being in the initial locked position (99) or the second locked position (101).

12. The electrical connector (3) according to claim 8, wherein, The torque setting device (89) includes a limit stop (126) configured to restrict the rotational movement of the operating sleeve (91) relative to the other of the two components (15).

13. The electrical connector (3) according to claim 8, wherein, The operating sleeve (91) further includes a release ring (127) configured to be in a released state, in which the operating sleeve (91) is rotatably rigidly connected to the release ring (79).

14. An electrical component (1) comprising an electrical connector (3) according to any one of claims 1 to 13 and a mating electrical connector (5) configured to be connected to the electrical connector (5).

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