An anti-loosening electrical connector for electromechanical equipment

Abstract

The present invention relates to the technical field of electrical connectors, and in particular to an anti-loosening electrical connector for electromechanical equipment, comprising a coaxially plugged core barrel and a piercing barrel, wherein a plurality of cables are clamped on the core barrel, and the ends of the plurality of cables extend along the radial direction of the core barrel and are evenly distributed around the circumference of the core barrel, and the piercing barrel is provided with a plurality of piercing pieces, one end of the piercing piece is provided with a clamping groove, and the interior of the clamping groove is provided with a cutting section, a pressing section and a conductive section in sequence from bottom to top, the cutting section is used for cutting the insulating sheath of the cable, the pressing section is used for clamping the insulating sheath of the cable, and the conductive section is used for conductive connection with the wire core of the cable, and a clamping ring is rotatably provided on the piercing piece, and the clamping ring is U-shaped; in the initial state, the center line of the clamping ring coincides with the center line of the clamping groove, and the clamping ring can be clamped with the insulating sheath of the cable; the clamping ring can be rotated 90°, so that the insulating sheath is in closer contact with the wire core.

Description

Technical Field

[0001] The invention relates to the technical field of electric connectors, and in particular to an anti-loosening electric connector for electromechanical equipment. Background Art

[0002] The anti-loosening electromechanical equipment electrical connector is usually a piercing connector, which is provided with a card plate, the card plate has a U-shaped groove, and a piercing tip is formed inside the U-shaped groove. The piercing tip is used to cut the insulating sheath of the cable and squeeze the insulating sheath.

[0003] However, this structure easily causes plastic deformation of the insulating sheath when the insulating sheath is extruded, resulting in a gap between the insulating sheath and the wire core, thereby affecting the wrapping effect of the insulating sheath on the wire core and reducing the conductive performance of the cable. Summary of the invention

[0004] Based on this, it is necessary to provide an anti-loosening electromechanical equipment electrical connector to address the technical problem that the current anti-loosening electromechanical equipment electrical connector easily causes a reduction in the electrical conductivity of the cable.

[0005] The above purpose is achieved through the following technical solutions: An anti-loosening electromechanical device electrical connector, comprising a coaxial plug-in core barrel and a puncture barrel, wherein a plurality of cables are clamped inside the core barrel, and the ends of the plurality of cables extend along the radial direction of the core barrel and are evenly distributed around the circumference of the core barrel, and a plurality of puncture pieces are provided on the puncture barrel, wherein the puncture pieces correspond to the cables one by one and extend along the axial direction of the puncture barrel, and a clamping groove is provided at one end of the puncture piece, and the center line of the clamping groove extends along the axial direction of the puncture barrel, and a cutting section, a pressing section and a conductive section are sequentially provided inside the clamping groove along the plug-in direction, and the cutting section, the pressing section and the conductive section are sequentially arranged. The piercing piece is rotatably provided with a snap ring on one side close to the axis of the piercing tube, and the snap ring is U-shaped; in an initial state, the center line of the snap ring coincides with the center line of the snap groove, so that when the conductive segment contacts the core of the cable, the snap ring is snapped with the insulating sheath; as the piercing tube and the core inserting tube continue to be plugged in, the snap ring can rotate 90°, so that the insulating sheath is in closer contact with the core.

[0006] Furthermore, the puncture piece is provided with an arc-shaped block, the snap ring is provided with an arc-shaped groove, the arc-shaped block can slide along the arc-shaped groove, the snap ring is also provided with a connecting plate, a tension spring is provided between the connecting plate and the puncture tube, and the tension spring has a tendency to cause the snap ring to rotate 90°.

[0007] Furthermore, a push plate is provided inside the core inserting tube, and the push plate and the connecting plate are stop-matched in the plugging direction, and the push plate drives the clamping ring to rotate through the connecting plate.

[0008] Furthermore, the push plate is unidirectionally rotatably arranged on the core inserting tube through a torsion spring, and the clamping ring has two connecting arms. After the push plate drives the clamping ring to rotate, the connecting arms can drive the push plate to rotate.

[0009] Furthermore, a truncated cone is provided on the puncture piece, and the truncated cone cooperates with the connecting arm to keep the clamping ring in an initial state, and the connecting arm can pass over the truncated cone when the clamping ring rotates.

[0010] Furthermore, a limit block is provided on the puncture piece, and the limit block can cooperate with the connecting arm to stop and thus limit the rotation angle of the clamping ring.

[0011] Furthermore, the length direction of each puncture piece is set to be the up-and-down direction, the thickness direction of the puncture piece is the front-and-back direction, and the width direction of the puncture piece is the left-and-right direction. The cutting section includes two puncture knives arranged opposite to each other on the left and right, and the spacing between the two puncture knives is equal to the maximum diameter of the wire core. The pressing section includes two pressing platforms arranged opposite to each other on the left and right, and the pressing platform includes two pressing plates spaced apart from each other in front and back, and the two pressing plates can respectively support the insulating outer skin on the front and back sides of the cutting position.

[0012] Furthermore, the conductive segment includes two conductive plates arranged opposite to each other on the left and right sides, and the conductive plates correspond to the puncturing blades one by one in the up and down directions.

[0013] Furthermore, the puncture piece is connected with a conductive column, the outer part of the puncture tube is sleeved with a connecting tube, and the conductive column extends into the connecting tube.

[0014] Furthermore, the outer sleeve of the cable is provided with a sealing cylinder and a locking cylinder, the sealing cylinder and the connecting cylinder are both provided with annular serrations, the sealing cylinder and the connecting cylinder are anti-rotationally matched through the annular serrations, the locking cylinder is threadedly connected to the connecting cylinder, and the locking cylinder and the sealing cylinder are anti-rotationally matched.

[0015] The beneficial effects of the present invention are: The anti-loosening electromechanical equipment electrical connector provided by the present invention has a structure that the insulating sheath of the cable is easily plastically deformed after being compressed by the compression section. The insulating sheath on the side close to the axis of the piercing tube can be twisted 90° by rotating the clamp ring 90°, so that the insulating sheath is not easily plastically deformed, and the insulating sheath is in closer contact with the wire core, thereby ensuring the wrapping effect of the insulating sheath on the wire core, and further ensuring the conductive performance of the wire core.

[0016] Secondly, by pressing the insulating outer skin on both sides of the cutting position through the pressing table, the exposed wire core at the cutting position can be squeezed indirectly to avoid scratches on the surface of the wire core caused by direct crimping of the wire core. At the same time, the wire core entering the conductive section can release pressure to ensure the conductive performance of the wire core, thereby improving the conductive performance of the anti-loosening electromechanical equipment electrical connector as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an anti-loosening electromechanical equipment electrical connector provided by an embodiment of the present invention; Figure 2 An exploded view of the structure of an anti-loosening electromechanical device electrical connector provided by an embodiment of the present invention; Figure 3 for Figure 1 Side view of Figure 4 for Figure 3 Middle AA section view; Figure 5 for Figure 3 Middle BB section view; Figure 6 A schematic diagram of a portion of the structure of an anti-loosening electromechanical device electrical connector provided by an embodiment of the present invention; Figure 7 for Figure 6 Middle CC section view; Figure 8 for Figure 6 Schematic diagram from another angle; Fig. 9 for Figure 8 Middle DD section view; Fig.10 A schematic diagram of the structure of a puncture piece in an anti-loosening electromechanical device electrical connector provided by an embodiment of the present invention; Fig.11 A schematic diagram of a portion of the structure of a puncture piece in an anti-loosening electromechanical device electrical connector provided by an embodiment of the present invention; Fig.12 for Figure 5 Enlarged view of the structure at E in the middle; Fig.13 for Figure 7 A magnified view of the structure at F in the middle; Fig.14 for Fig. 9 Enlarged view of the structure at G in the middle.

[0018] in: 101, connecting tube; 102, sealing tube; 103, locking tube; 200, puncturing tube; 2011, conductive column; 2012, puncturing piece; 2013, arc-shaped block; 2014, round table; 2015, limit block; 2016, cutting section; 2017, pressing section; 2018, conductive section; 202, clamping ring; 2021, connecting arm; 2022, connecting plate; 300, core tube; 301, wire core; 302, insulating sheath; 303, connecting ring; 304, pushing plate; 305, tension spring. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0021] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] like Figures 1 to 14As shown, an anti-loosening electromechanical device electrical connector provided by an embodiment of the present invention comprises a coaxially plugged core barrel 300 and a piercing barrel 200, wherein a plurality of cables are clamped inside the core barrel 300, and the ends of the plurality of cables extend along the radial direction of the core barrel 300 and are evenly distributed around the circumference of the core barrel 300, and a plurality of piercing pieces 2012 are provided on the piercing barrel 200, wherein the piercing pieces 2012 correspond to the cables one by one and extend along the axial direction of the piercing barrel 200, and a clamping groove is provided at one end of the piercing piece 2012, and the center line of the clamping groove extends along the axial direction of the piercing barrel 200, and a cutting section 2016, a pressing section 2017 and a conductive section 2018 are sequentially provided inside the clamping groove along the plugging direction, and the cutting section 2016, the pressing section 2017 and the conductive section 2018 are sequentially provided inside the clamping groove. 8 contacts with the cable in sequence, the cutting section 2016 is used to cut the insulating sheath 302 of the cable, the pressing section 2017 is used to press the insulating sheath 302 of the cable, the conductive section 2018 is used to be conductively connected with the core 301 of the cable, and the piercing piece 2012 is rotatably provided with a snap ring 202 on one side close to the axis of the piercing tube 200, and the snap ring 202 is U-shaped; in the initial state, the center line of the snap ring 202 coincides with the center line of the snap groove, so that when the conductive section 2018 contacts with the core 301 of the cable, the snap ring 202 is snapped with the insulating sheath 302; as the piercing tube 200 and the core tube 300 continue to be plugged in, the snap ring 202 can rotate 90° to make the insulating sheath 302 contact with the core 301 more closely.

[0023] Since the insulating sheath 302 of the cable is easily plastically deformed after being compressed by the compression section 2017, the insulating sheath 302 on the side close to the axis of the puncture tube 200 can be twisted 90° by rotating the clamping ring 202 90°, making it difficult for the insulating sheath 302 to be plastically deformed, and the insulating sheath 302 is in closer contact with the core 301, thereby ensuring the wrapping effect of the insulating sheath 302 on the core 301, and further ensuring the conductive performance of the core 301.

[0024] In one embodiment, the puncture piece 2012 is provided with an arc-shaped block 2013, and the snap ring 202 is provided with an arc-shaped groove, and the arc-shaped block 2013 can slide along the arc-shaped groove. The snap ring 202 is also provided with a connecting plate 2022, and a tension spring 305 is provided between the connecting plate 2022 and the puncture tube 200, and the tension spring 305 has a tendency to make the snap ring 202 rotate 90°.

[0025] Such a design enables the retaining ring 202 to maintain a stable guide during rotation, so that the retaining ring 202 can smoothly rotate 90°.

[0026] In one embodiment, a push plate 304 is provided inside the ferrule barrel 300, and the push plate 304 is engaged with the connecting plate 2022 in the plugging direction, and the push plate 304 drives the clamping ring 202 to rotate through the connecting plate 2022. The push plate 304 can drive the clamping ring 202 to rotate during the plugging process, thereby ensuring that the clamping ring 202 can rotate smoothly and drive the insulating outer skin 302 to rotate.

[0027] In one embodiment, the push plate 304 is unidirectionally rotatably arranged on the core insert barrel 300 through a torsion spring (not shown in the figure), and the clamp ring 202 has two connecting arms 2021. After the push plate 304 drives the clamp ring 202 to rotate, the connecting arms 2021 can drive the push plate 304 to rotate. By arranging the torsion spring on the core insert barrel 300, it is ensured that the push plate 304 can only rotate in one direction, thereby avoiding interference of the push plate 304 with the connecting arms 2021 after the clamp ring 202 rotates. Fig.14 As shown, the push plate 304 can only rotate upward, and the torsion spring extends the push plate 304 in the horizontal direction under the natural state. In this way, when the snap ring 202 is reset, the push plate 304 can stop and cooperate with the connecting plate 2022.

[0028] In one embodiment, a truncated cone 2014 is provided on the puncture piece 2012 , and the truncated cone 2014 cooperates with the connecting arm 2021 to keep the snap ring 202 in an initial state, and the connecting arm 2021 can pass over the truncated cone 2014 when the snap ring 202 rotates.

[0029] The truncated platform 214 can be formed on the puncturing piece 212 by precision machining, and the connecting arm 221 can be reasonably designed to ensure that it can slide on the truncated platform 214. Specifically, the height of the truncated platform 214 and the shape of the connecting arm 221 need to be tested and adjusted many times to ensure the tightness and smoothness of their matching. The truncated platform 214 can be processed with a hard alloy material, and the connecting arm 221 can be made of a metal material with good elasticity.

[0030] In one embodiment, the puncture piece 2012 is provided with a limit block 2015, and the limit block 2015 can cooperate with the connecting arm 2021 to limit the rotation angle of the clamp 202. The limit block 2015 can limit the rotation angle of the clamp 202 to avoid the problem of excessive rotation of the clamp 202.

[0031] In one embodiment, the length direction of each puncture piece 2012 is set to be the up-down direction, the thickness direction of the puncture piece 2012 is set to be the front-to-back direction, and the width direction of the puncture piece 2012 is set to be the left-to-right direction. The cutting section 2016 includes two puncture knives arranged opposite to each other on the left and right sides, and the spacing between the two puncture knives is equal to the maximum diameter of the wire core 301, ensuring that the wire core 301 can be just exposed. The pressing section 2017 includes two pressing platforms arranged opposite to each other on the left and right sides, and the pressing platform includes two pressing plates arranged at intervals in front and back, and the two pressing plates can respectively support the insulating outer skin 302 on both sides of the front and back of the cutting position. This design prevents the two pressing plates from contacting the wire core 301 exposed at the cutting position, thereby avoiding wear on the wire core 301.

[0032] In one embodiment, the conductive segment 2018 includes two conductive plates disposed opposite to each other, and the conductive plates correspond to the piercing knife in a one-to-one manner in the vertical direction, so as to ensure that the conductive plates can stably conduct electricity with the wire core 301 exposed at the cutting position.

[0033] Furthermore, the interval between the left and right pressing platforms is smaller than the interval between the left and right puncturing knives, and smaller than the interval between the left and right conductive plates. In this way, by pressing the insulating outer skin 302 on both sides of the cutting position, the exposed wire core 301 at the cutting position can be squeezed indirectly, avoiding direct crimping of the wire core 301 to cause scratches on the surface of the wire core 301. At the same time, the wire core 301 can release pressure when entering the conductive section 2018, ensuring the conductive performance of the wire core 301, and improving the conductive performance of the anti-loosening electromechanical device electrical connector as a whole.

[0034] In one embodiment, the puncture piece 2012 is connected with a conductive column 2011, and the outer portion of the puncture tube 200 is sleeved with a connecting tube 101, and the conductive column 2011 extends into the connecting tube 101. The conductive column 2011 is used for conductive connection with a conductive terminal of another connector.

[0035] In one embodiment, the outer sleeve of the cable is provided with a sealing cylinder 102 and a locking cylinder 103, and the sealing cylinder 102 and the connecting cylinder 101 are both provided with annular serrations, and the sealing cylinder 102 and the connecting cylinder 101 are anti-rotationally matched through the annular serrations, and the locking cylinder 103 is threadedly connected to the connecting cylinder 101, and the locking cylinder 103 is anti-rotationally matched with the sealing cylinder 102. Specifically, the outer portion of the sealing cylinder 102 is provided with a spline, and the inner portion of the locking cylinder 103 is provided with a keyway.

[0036] The core inserting tube 300 is rotatably provided with a connecting ring 303, and the outer peripheral surface of the puncturing tube 200 is provided with an external thread. After the puncturing tube 200 and the core inserting tube 300 are plugged, the threaded connection between the puncturing tube 200 and the core inserting tube 300 is achieved by rotating the connecting ring 303. Then, the connecting tube 101 is sleeved on the puncturing tube 200, and the sealing tube 102 is sleeved on the core inserting tube 300, so that the connecting tube 101 and the sealing tube 102 are matched with each other through the annular sawtooth stop, and finally the locking tube 103 is slid along the sealing tube 102, so that the locking tube 103 is threadedly connected with the connecting tube 101, and the assembly of the anti-loosening electromechanical device electrical connector can be achieved.

[0037] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows: The puncture tube 200 is gradually docked with the core inserting tube 300, the card slot on the puncture piece 2012 is gradually close to the cable, the cutting section 2016, the pressing section 2017 and the conductive section 2018 on the puncture piece 2012 contact the cable in sequence, the cutting section 2016 cuts the insulating sheath 302 of the cable to expose the wire core 301, the pressing section 2017 supports and presses the insulating sheath 302 on both sides of the cutting position to achieve the compression of the wire core 301, the compressed wire core 301 enters the conductive section 2018 to release the pressure and make conductive contact with the conductive plate, so as to achieve the conductive connection between the puncture piece 2012 and the cable, and at the same time, the puncture piece 2012 is located close to the puncture tube The insulating outer skin 302 on one side of the axis 200 will enter the clamping ring 202. As the piercing tube 200 and the core tube 300 are further connected, the pushing plate 304 on the core tube 300 can push the connecting plate 2022 on the clamping ring 202 to move upward, causing the clamping ring 202 to rotate clockwise. The connecting arm 2021 of the clamping ring 202 passes over the frustum 2014. Under the action of the tension spring 305, the clamping ring 202 rotates 90° until the connecting arm 2021 of the clamping ring 202 is stopped and matched with the limit block 2015. At this time, the arc-shaped block 2013 on the piercing piece 2012 is stopped by the arc-shaped groove of the clamping ring 202, thereby realizing the piercing and conductive connection of the cable.

[0038] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An anti-loosening electrical connector for electromechanical equipment, characterized in that: It comprises a coaxially plug-in core barrel and a puncture barrel, wherein a plurality of cables are clamped inside the core barrel, the ends of the plurality of cables extend along the radial direction of the core barrel and are evenly distributed around the circumference of the core barrel, a plurality of puncture pieces are arranged on the puncture barrel, the puncture pieces correspond to the cables one by one and extend along the axial direction of the puncture barrel, a clamping groove is arranged at one end of the puncture piece, the center line of the clamping groove extends along the axial direction of the puncture barrel, a cutting section, a pressing section and a conductive section are arranged inside the clamping groove in sequence along the plug-in direction, and the cutting section, the pressing section and the conductive section contact the cables in sequence The cutting section is used to cut the insulating sheath of the cable, the pressing section is used to press the insulating sheath of the cable, the conductive section is used to be conductively connected to the core of the cable, and the piercing piece is rotatably provided with a clamping ring on one side close to the axis of the piercing tube, and the clamping ring is U-shaped; in the initial state, the center line of the clamping ring coincides with the center line of the clamping groove, so that when the conductive section contacts the core of the cable, the clamping ring is clamped with the insulating sheath; as the piercing tube and the core insertion tube continue to be plugged in, the clamping ring can rotate 90°, so that the insulating sheath is in closer contact with the core.

2. The anti-loosening electromechanical equipment electrical connector according to claim 1, characterized in that: The puncture piece is provided with an arc-shaped block, the clamping ring is provided with an arc-shaped groove, the arc-shaped block can slide along the arc-shaped groove, the clamping ring is also provided with a connecting plate, a tension spring is provided between the connecting plate and the puncture tube, and the tension spring has a tendency to rotate the clamping ring 90°.

3. The anti-loosening electromechanical equipment electrical connector according to claim 2, characterized in that: A push plate is provided inside the core inserting tube, and the push plate is engaged with the connecting plate in a blocking manner in the plugging direction, and the push plate drives the clamping ring to rotate through the connecting plate.

4. The anti-loosening electromechanical equipment electrical connector according to claim 3, characterized in that: The push plate is unidirectionally rotatably arranged on the core inserting tube through a torsion spring, and the clamping ring has two connecting arms. After the push plate drives the clamping ring to rotate, the connecting arms can drive the push plate to rotate.

5. The anti-loosening electromechanical equipment electrical connector according to claim 4, characterized in that: The puncture piece is provided with a round table, and the round table cooperates with the connecting arm to keep the clamp ring in the initial state. When the clamp ring rotates, the connecting arm can go over the round table.

6. The anti-loosening electromechanical equipment electrical connector according to claim 5, characterized in that: The puncture piece is provided with a limit block, and the limit block can cooperate with the connecting arm to stop, so as to limit the rotation angle of the clamping ring.

7. The anti-loosening electromechanical equipment electrical connector according to claim 1, characterized in that: The length direction of each puncture piece is set to be the up-and-down direction, the thickness direction of the puncture piece is set to be the front-and-back direction, and the width direction of the puncture piece is set to be the left-and-right direction. The cutting section includes two puncture knives arranged opposite to each other on the left and right, and the spacing between the two puncture knives is equal to the maximum diameter of the wire core. The pressing section includes two pressing platforms arranged opposite to each other on the left and right, and the pressing platform includes two pressing plates spaced apart from each other in the front and back directions. The two pressing plates can respectively support the insulating outer skin on the front and back sides of the cutting position.

8. The anti-loosening electromechanical equipment electrical connector according to claim 7, characterized in that: The conductive section includes two conductive plates arranged opposite to each other on the left and right sides, and the conductive plates correspond to the puncturing knives in a one-to-one manner in the up and down directions.

9. The anti-loosening electromechanical equipment electrical connector according to claim 1, characterized in that: The puncture piece is connected with a conductive column, the outer part of the puncture tube is sleeved with a connecting tube, and the conductive column extends into the connecting tube.

10. The anti-loosening electromechanical equipment electrical connector according to claim 9, characterized in that: The outer sleeve of the cable is provided with a sealing cylinder and a locking cylinder. The sealing cylinder and the connecting cylinder are both provided with annular serrations. The sealing cylinder and the connecting cylinder are anti-rotationally matched through the annular serrations. The locking cylinder is threadedly connected to the connecting cylinder, and the locking cylinder and the sealing cylinder are anti-rotationally matched.

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