Insulation puncture type circular connector structure

Abstract

The utility model provides an insulating puncture type circular connector structure, which comprises a connecting nut, a jack insulator, a shell, a locking nut, a plurality of jack contact elements, a clamping structure and a cable sealing ring, the jack insulator is nested in the connecting nut, the jack insulator, the shell and the locking nut are sequentially connected, and the clamping structure is arranged on the jack insulator. The clamping structure is arranged in a containing space formed by the shell and the locking nut and used for clamping a wire and a cable, one end of the jack contact piece is inserted into the jack insulator, and the other end of the jack contact piece penetrates through the shell to be connected with the clamping structure and pierces the corresponding wire in a piercing mode so as to be electrically connected with the corresponding wire. According to the utility model, the wiring efficiency and the wiring reliability of electrical equipment can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, and in particular relates to an insulating piercing circular connector structure. Background Technology

[0002] A connector structure is a connection structure that connects cables to electrical equipment. Existing connector structures mainly include those that connect wires using screws, welding, and springs. However, these connector structures have the following drawbacks: (1) complex installation operations that require specialized tools; (2) high technical requirements for installation personnel, requiring specialized welding or wiring skills; (3) poor connector applicability and high installation and usage costs; (4) the welding process generates harmful welding gases that can damage the health of operators; and (5) screw connections are not resistant to vibration and impact, which can lead to loose wiring and poor contact in environments with vibration or impact, potentially causing equipment failure or even fires. Utility Model Content

[0003] To address the aforementioned technical problems, the technical solution adopted by this utility model is as follows:

[0004] According to a first aspect of this utility model, an insulating piercing circular connector structure is provided, comprising: a connecting nut, a socket insulator, a housing, a locking nut, m socket contacts, a clamping structure, and a cable sealing ring. The connecting nut, socket insulator, housing, and locking nut are connected in sequence. The clamping structure is disposed in the accommodating space formed by the housing and the locking nut. The cable sealing ring is disposed in the clamping structure. A cable with m exposed wires passes through the cable sealing ring and is clamped and fixed in the cable sealing ring. The wires are clamped and fixed on the clamping structure. One end of the socket contact is inserted into the socket insulator, and the other end passes through the housing and connects to the clamping structure, piercing the corresponding wires to achieve electrical connection with the corresponding wires.

[0005] According to a second aspect of this utility model, an insulating piercing circular connector structure is provided, comprising: a connecting screw, a pin insulator, a housing, a locking nut, m pin contacts, a clamping structure, and a cable sealing ring. The connecting screw, pin insulator, housing, and locking nut are connected sequentially. The clamping structure is disposed within the accommodating space formed by the housing and the locking nut. The cable sealing ring is disposed within the clamping structure. A cable with m exposed wires passes through the cable sealing ring and is clamped and fixed within it. The wires are clamped and fixed to the clamping structure. One end of each pin contact is inserted into the pin insulator, and the other end passes through the housing and connects to the clamping structure, piercing the corresponding wire to achieve electrical connection.

[0006] This utility model has at least the following beneficial effects:

[0007] The piercing connector structure provided in this embodiment of the utility model has at least the following advantages: (1) The conductor and the pierced part of the conductor are connected by the locking force of the locking nut, without the need for wire stripping or soldering, which can further improve the wiring efficiency of electrical equipment. (2) No soldering or wire stripping is required, avoiding the influence of the operator's professional level on the wiring quality and improving the wiring reliability. (3) Wiring can be performed without soldering, which is environmentally friendly and energy-saving. (4) The piercing method is adaptable to various cable specifications and has a wide range of applications. (5) After the piercing part of the conductor pierces the conductor, it always maintains a certain clamping force on the wire core. The connection structure adopts an anti-loosening structure design, which can improve the vibration and impact resistance of the connector.

[0008] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of a piercing connector structure provided in an embodiment of the present invention;

[0011] Figure 2 for Figure 1 A sectional view;

[0012] Figure 3 This is a schematic diagram of the socket contact element;

[0013] Figure 4 and Figure 5 This is a schematic diagram of the clamping structure;

[0014] Figure 6 This is a schematic diagram of the structure for connecting the nut;

[0015] Figure 7 This is a schematic diagram of the structure of the socket insulator;

[0016] Figure 8 This is a schematic diagram of a piercing connector structure provided in another embodiment of the present invention. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] (Example 1)

[0020] One embodiment of this utility model provides an insulating piercing circular connector structure, such as... Figures 1 to 3 As shown, it may include: a connecting nut 2, a socket insulator 1, a housing 4, a locking nut 8, m socket contacts 3, a clamping structure 5, and a cable sealing ring 7.

[0021] The connecting nut, socket insulator, outer shell, and locking nut are connected in sequence. The clamping structure is set in the accommodating space formed by the outer shell and the locking nut. The cable sealing ring 7 is set in the clamping structure 5. The cable 20 with m exposed wires passes through the cable sealing ring and is clamped and fixed in the cable sealing ring 7. The wires are clamped and fixed on the clamping structure. One end of the socket contact is inserted into the socket insulator 1, and the other end passes through the outer shell and is connected to the clamping structure 5. It punctures the corresponding wire to make an electrical connection with the corresponding wire.

[0022] In this embodiment of the utility model, m≥2, and m can be set according to actual needs. Preferably, 2≤m≤8.

[0023] Furthermore, one end of the socket insulator 1 is inserted into the connecting nut 2, and the other end is connected to the first end of the housing 4. The second end of the housing 4 is threadedly connected to the locking nut 8. The clamping structure 5 includes a hollow wire clamping end and a cable clamping end. The wire clamping end is inserted into the first end of the housing 4, and the cable clamping end is inserted into the locking nut 8. The cable sealing ring 7 is disposed in the cable clamping end. The cable 20 with m exposed wires passes through the cable sealing ring and is clamped and fixed in the cable sealing ring. The wire 24 is clamped and fixed on the wire clamping end.

[0024] In this embodiment of the invention, the cable sealing ring 7 can be a rubber ring. The outer shell 4 and the socket insulator 1 can be assembled into a whole by ultrasonic welding. The outer shell 4 is provided with external threads, and the locking nut 8 is provided with internal threads. The locking nut and the outer shell are assembled and connected together by the internal and external threads.

[0025] In this embodiment of the invention, the socket contact 1 may be made of copper alloy. In one illustrative embodiment, the socket contact 3 may include a separately formed terminal connection portion and a wire piercing portion. The terminal connection portion is inserted into the socket insulator, and the wire piercing portion passes through the outer shell and connects to the wire clamping end, piercing the corresponding wire to achieve electrical connection. The terminal connection portion is a socket structure.

[0026] In this embodiment of the invention, the separately formed terminal connection portion and wire piercing portion can be fixed together by welding or riveting. A bend is formed on the terminal connection portion and / or the wire piercing portion so that the terminal connection portion and the wire piercing portion are not on the same straight line.

[0027] In another embodiment, such as Figure 3 As shown, the socket contact 3 may include an integrally formed terminal connection portion 21, a bending portion 22, and a wire piercing portion 23.

[0028] In this embodiment, the socket contact is formed by integral stamping, which can save the manufacturing time of the socket contact and improve the stability of the contact, thereby improving the assembly efficiency and stability of the connector.

[0029] Furthermore, such as Figure 3 As shown, the wire piercing part 23 includes a sheet-like body, and the bending part 22 may be a sheet-like structure connected to the middle of the front end of the body. The body has a transition groove 2301, a wire clamping groove 2302 and a V-shaped guide opening 2303 that are connected and communicate with each other in sequence.

[0030] In this embodiment of the invention, the bent portion 22 is formed at an angle from the terminal connection portion toward the wire piercing portion. The bending angle of the bent portion is an acute angle between the straight line containing the bent portion and the straight line containing the terminal connection portion, and the specific angle can be set according to actual needs. In an illustrative embodiment, the angle θ between the straight line containing the bent portion and the straight line containing the terminal connection portion satisfies the following condition: θ2<θ≤θ1, where θ1 is the upper limit of the bending angle and θ2 is the lower limit of the bending angle.

[0031] Preferably, θ1 = acr(6 × L × F 0 / σ max ×B×H 2), where L refers to the length of the bent portion, F 0 This refers to the average pulling force exerted by the user when pulling the wire through the piercing portion 23 from the socket insulator and housing; B refers to the width of the bend portion 22; H refers to the thickness of the bend portion 22; σ max This refers to the ultimate strength of the material used in the bent portion 22; θ2 = 0.

[0032] In this embodiment of the utility model, F 0 =mean(F1+F2+……+F i +……+F n ), where F i The pulling force required for the i-th user to pull the wire piercing part 23 out of the socket insulator and the shell, where i is from 1 to n, n is the number of users, and mean() means taking the average value.

[0033] In this embodiment of the invention, the bending angle of the bending portion that meets the above conditions can improve the tensile strength of the punctured portion of the wire.

[0034] The function of the bending portion 22 is to prevent the wire piercing portion and the terminal connection portion from being on the same straight line. Since the spacing between the terminal connection portions is fixed, the bending portion can change the spacing and angle between the wire piercing portions, thereby facilitating the adjustment of the angle and position distribution of the wire piercing portions and thus improving the applicability of the connector structure.

[0035] In this embodiment of the invention, the transition groove 2301 is used to increase the elasticity of the clamping groove. Its specific dimensions can be set according to actual needs, as long as the elasticity of the clamping groove is increased. The wire piercing part is used to pierce the wire insulation and clamp the wire core. The clamping groove 2302 can accommodate wires of various cross-sectional areas, thus improving the applicability of the connector. The width of the clamping groove 2302 can be determined based on the diameter of the clamped wire core. In an illustrative embodiment, the width w of the clamping groove and the diameter d of the clamped wire core satisfy the following relationship: w = d × k, 0 < k < 1, preferably 0.5 ≤ k ≤ 0.8, more preferably 0.6 ≤ k ≤ 0.65. This provides sufficient piercing strength and clamping force, and reduces damage to the wire core.

[0036] Furthermore, in this embodiment of the present invention, the socket insulator 1 is provided with a socket adapted to the front end portion (including the terminal connection portion and the bending portion) of the socket contact, and the outer shell 4 is provided with a through hole for the wire piercing portion to pass through. The wire piercing portion 23 is limited in the socket insulator 1 by a first stop structure, and the wire piercing portion is limited in the outer shell 4 by a second stop structure. The first stop structure includes a first stop groove (not shown) provided in the socket insulator and two first stop portions 2304 provided on both sides of the front end of the body; the second stop structure includes a second stop groove (not shown) provided in the outer shell and a second stop portion 2305 provided on the body. Figure 3 As shown, the second stop portion 2305 is connected to the front end of the main body and is inclined relative to the main body. The second stop portion is located between the first stop portion and the transition groove. Specifically, the second stop portion 2305 can be a tongue structure, which can be obtained by opening a square hole on the main body that connects to the main body on one side.

[0037] When the socket contact is inserted into the socket insulator and the housing, the first stop part abuts against the first stop groove, and the second stop part abuts against the second stop groove, thereby achieving the front and rear positioning of the socket contact and thus fixing the socket contact.

[0038] In this embodiment of the invention, the clamping structure may be made of plastic.

[0039] Furthermore, such as Figure 1 , Figure 4 and Figure 5 As shown, the wire clamping end may include a wire clamping base 51 and a wire clamping cylinder 52 connected to the wire clamping base. A sealing element 6 is provided on the wire clamping base. The sealing element 6 may be an O-ring rubber seal, disposed within a groove in the wire clamping base 51, with the wire diameter of the sealing element 6 being greater than the depth of the groove. When the wire clamping end is inserted into the housing, the inner wall of the housing compresses the sealing element 6, achieving a dustproof and waterproof seal.

[0040] The wire clamping cylinder 52 is provided with m wire clamping parts along the circumferential direction. Each wire clamping part includes a first inclined part 53 and a second inclined part 54 that are inclined outward relative to the axial direction of the wire clamping cylinder. The first inclined part 53 and the second inclined part 54 are spaced apart, and the included angle between the first inclined part 53 and the second inclined part 54 is greater than 90° but less than 180°.

[0041] The first inclined portion 53 has a first inclined guide surface 5301 at its top and a first groove 5302, a first side surface 5303, and a first notch 5304 connected in sequence on its side. The second inclined portion has a second inclined guide surface 5401 at its top and a second groove 5402, a second side surface 5403, and a second notch 5404 connected in sequence on its side. The first and second inclined guide surfaces cooperate to form a V-shaped guide channel, and the first and second grooves cooperate to form a flared channel. The first and second side surfaces are parallel to the axial direction of the first fixed end and cooperate to form a clamping channel. The first and second notches cooperate to form a notch portion. The wire slides into the flared channel through the V-shaped guide channel and then slides down and is clamped in the clamping channel. The flared channel is wider than the clamping channel. The flared channel reduces the force required to press the conductor in, facilitating its entry into the clamping channel. The notch is wider than both the clamping channel and the flared channel, providing clamping force to the clamping channel, which clamps the conductor by deforming. The first and second inclined portions reduce the opening of the clamping channel when the conductor retracts, thereby increasing the clamping force and preventing the conductor from detaching from the clamping channel.

[0042] Furthermore, the conductor clamping cylinder 52 is also provided with a limiting protrusion 59, which is used to limit the cable clamped at the cable clamping end. Specifically, it is used to block the insulation sheath at the stripped part of the cable, restrict the cable from moving in the opposite direction to the clamping channel, maintain the length of the exposed conductor, and prevent the conductor from generating outward pushing force at the clamping channel, thus preventing the conductor from coming off.

[0043] Furthermore, the cable clamping end includes a cable clamping base 55 and an annular clamping portion 56 connected to the cable clamping base. The cable clamping base 55 is provided with an annular protrusion 57 having a notch 58. The width w1 of the annular protrusion 57 and the width w2 of the internal thread groove of the locking nut can satisfy the following relationship: w1 = w2 - w0, where w0 can be preset, preferably 0.1mm ≤ w0 ≤ 0.2mm. The notch 58 is used for the thread of the locking nut to be screwed into the annular protrusion. In this way, when disassembling the piercing connector structure, the locking nut 8 can be removed first. When the internal thread of the locking nut 8 disengages from the external thread on the outer shell 4, the locking nut 8 can be pulled directly, pulling out the clamping structure without other auxiliary tools, making it convenient for operators to disassemble the connector.

[0044] Furthermore, the annular clamping part 56 includes a plurality of strip-shaped clamping members spaced apart in the circumferential direction and extending in the axial direction, i.e., the annular clamping part is formed as a claw structure. During the assembly of the locking nut 8, the inclined inner wall of the locking nut presses against the plurality of clamping members, and the pressure-bearing ends of the plurality of clamping members tighten inward, pressing against the outer wall of the cable sealing ring, causing the cable sealing ring to deform. The deformed inner wall of the cable sealing ring presses against the cable, achieving a dustproof and waterproof seal.

[0045] Furthermore, the wire clamping end and the outer shell are connected by a guide structure, such as... Figure 2 As shown, the guide structure includes a guide protrusion 9 disposed on the wire clamping cylinder and a guide groove 10 disposed inside the housing and adapted to the guide protrusion 9. The guide protrusion 9 is disposed between two adjacent wire clamping parts.

[0046] Furthermore, a limiting groove 10 is provided in the wire clamping end for inserting the wire piercing part and limiting the wire piercing part.

[0047] When the clamping structure is installed into the housing, the guide protrusion and guide groove are aligned so that the sheet-like guide connection on the socket contact can be smoothly inserted into the limiting groove on the clamping structure. After the clamping structure is installed into the housing, the guide protrusion and guide groove act as a limit, preventing the clamping structure from rotating and providing a stable and uniform piercing pressure when the sheet-like guide connection pierces the insulation layer of the wire.

[0048] Furthermore, in this embodiment of the invention, during the connection process between the locking nut and the housing, the wire 24 is guided and embedded into the clamping groove through the V-shaped guide opening 2303. Specifically, during the tightening of the locking nut, the wire piercing part is inserted into the limiting groove of the clamping structure, the wire is cut by the wire piercing part through the V-shaped guide opening, the wire insulation is cut, and the conductor core of the wire is guided by the V-shaped guide opening into the clamping channel, communicating with the wire piercing parts on both sides. Since the wire is fixed on the clamping structure, connecting the wire during the tightening of the locking nut reduces the professional skill requirements for operators, improves wiring quality, and enhances wiring stability. In addition, the clamping groove provides a continuous clamping force to the conductor core, while the limiting groove provides a holding force to the wire piercing part, ensuring that the clamping groove always clamps the conductor core. Even under the influence of impact and vibration, there is still a strong clamping force, thus maintaining conductor continuity and increasing the connector's vibration and impact resistance.

[0049] Furthermore, such as Figure 2As shown, the locking nut 8 is provided with a plurality of inserts 11, which are used to fit into the gap between two adjacent clamping members. The inserts 11 may be tapered protrusions. When the locking nut is tightened by internal thread rotation, the inserts will fit into the gap between two adjacent clamping members, making it difficult for the locking nut to rotate back after tightening, thereby preventing the locking nut from loosening.

[0050] Furthermore, such as Figure 6 and Figure 7 As shown, one end of the connecting nut 2 is provided with an internal thread, and the other end is provided with a first circumferential protrusion 12. A second protrusion 14 is formed on the socket insulator 1. The diameter of the first circumferential protrusion 12 is smaller than the diameter of the second circumferential protrusion 14. The connecting nut 2 and the socket insulator 1 are assembled into one piece by pressing the second protrusion 14 to deform it.

[0051] Furthermore, the first circumferential protrusion 12 is provided with a plurality of first protrusions 13 protruding in a first direction, and the second circumferential protrusion 14 is provided with a plurality of second protrusions 15 protruding in a second direction. The first direction and the second direction are opposite in direction, and the first protrusions and the second protrusions cooperate with each other to form an anti-loosening structure. After the connecting nut 2 is tightened to the external thread end of the other end connector, the anti-loosening structure can prevent the connection from loosening due to the fact that the retraction force of the connecting nut is less than the elastic deformation force that causes the anti-loosening structure to retract further, thereby increasing the vibration and impact resistance of the connector.

[0052] Furthermore, such as Figure 1 As shown, the outer periphery of the connecting nut 2 has a textured anti-slip structure and an external hexagonal structure located to the right of the textured anti-slip structure. The external hexagonal structure is used to facilitate manual tightening or tightening of the connecting nut with a wrench. The outer periphery of the housing 4 has a textured anti-slip structure and a wrench position for easy tightening with a wrench. The locking nut 8 has a textured anti-slip structure and an external hexagonal structure located to the right of the textured anti-slip structure. The external hexagonal structure is used to facilitate manual tightening or tightening of the locking nut with a wrench.

[0053] (Example 2)

[0054] Another embodiment of this utility model provides an insulating piercing circular connector structure, such as... Figure 8 As shown, it may include: a connecting screw 16, a pin insulator 17, a housing 4, a locking nut 8, m pin contacts 18, a clamping structure 5, and a cable sealing ring 7.

[0055] The connecting screw 16, the socket insulator 17, the outer shell 4, and the locking nut 8 are connected in sequence. The clamping structure 5 is set in the accommodating space formed by the outer shell and the locking nut. The cable sealing ring 7 is set in the clamping structure 5. The cable 20 with m exposed wires passes through the cable sealing ring and is clamped and fixed in the cable sealing ring 7. The wires are clamped and fixed on the clamping structure. One end of the socket contact is inserted into the pin insulator 17, and the other end passes through the outer shell and is connected to the clamping structure 5. It punctures the corresponding wire to make an electrical connection with the corresponding wire.

[0056] Further, one end of the pin insulator 17 is inserted into the connecting screw 16, and the other end is connected to the first end of the housing. The second end of the housing is threadedly connected to the locking nut. The clamping member includes a hollow wire clamping end and a cable clamping end. The wire clamping end is inserted into the first end of the housing, and the cable clamping end is inserted into the locking nut. The cable sealing ring is disposed in the cable clamping end. The cable 20 with m exposed wires passes through the cable sealing ring and is clamped and fixed in the cable sealing ring 7. The wire is clamped and fixed on the wire clamping end. The pin contact 18 includes an integrally formed terminal connection part, a bending part, and a wire piercing part. The terminal connection part is inserted into the pin insulator. The wire piercing part passes through the housing and connects to the wire clamping end, and pierces the corresponding wire to make an electrical connection with the corresponding wire. The terminal connection part is a pin structure.

[0057] The piercing connector structure provided in this embodiment is basically the same as the piercing connector structure provided in the previous embodiments, except that the connecting nut is replaced with a connecting screw, the socket insulator is replaced with a pin insulator, and the terminal connection portion is changed from a socket structure to a pin structure. To avoid redundancy, descriptions of the same structures are omitted.

[0058] In this embodiment, the structures of the pin insulator 17 and the socket insulator 1 are basically the same, except that the connection method with the connecting screw is different. That is, the pin insulator is provided with a socket for the pin insulator to be inserted, and also with a second stop groove that matches the second stop portion on the pin contact.

[0059] In this embodiment, the threaded end face of the connecting screw 16 is provided with a convex-concave portion 1601 along the circumferential direction, and the end of the pin insulator 17 is provided with a concave-convex stop portion 1701 that mates with the convex-concave portion. The convex-concave portion and the concave-convex stop portion cooperate to form an anti-loosening structure. By inserting the connecting screw into the pin insulator, the end of the pin insulator is deformed by squeezing it, exposing the end of the pin insulator, and then the convex-concave portion and the concave-convex stop portion abut against each other. In this embodiment of the present invention, the convex-concave portion and the concave-convex stop portion can be a wavy structure. After tightening the connecting screw, the convex-concave portion of the connecting screw and the concave-convex stop portion on the pin insulator can prevent the connection from loosening due to the retraction force of the connecting screw being less than the elastic deformation force that causes the anti-loosening structure, thereby increasing the vibration and impact resistance of the connector.

[0060] The piercing connector structure provided in Embodiment 1 of this utility model can be adapted to the piercing connector structure provided in Embodiment 2. Alternatively, the circular connector structures provided in Embodiments 1 and 2 can be used for data transmission or power supply between electronic devices or industrial equipment, respectively.

[0061] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this utility model can be achieved, and no limitation is imposed herein.

[0062] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An insulating piercing circular connector structure, characterized in that, The utility model relates to a connector, which comprises a connecting nut, a jack insulator, a shell, a locking nut, m jack contact pieces, a clamping structure and a cable sealing ring, the connecting nut, the jack insulator, the shell and the locking nut are sequentially connected, the clamping structure is arranged in the accommodation space formed by the shell and the locking nut, the cable sealing ring is arranged in the clamping structure, a cable with m exposed wires is inserted into the cable sealing ring and clamped and fixed in the cable sealing ring, the wires are clamped and fixed on the clamping structure, one end of the jack contact piece is inserted into the jack insulator, the other end passes through the shell and is connected with the clamping structure and pierces the corresponding wire to be electrically connected with the corresponding wire in a piercing mode, and the clamping structure comprises a wire clamping end and a cable clamping end. The jack contact piece comprises a terminal connecting part and a wire piercing part which are separately formed, the terminal connecting part is inserted into the jack insulator, the wire piercing part passes through the shell and is connected with the wire clamping end and pierces the corresponding wire to be electrically connected with the corresponding wire in a piercing mode, and the terminal connecting part is in a jack structure.

2. The insulation piercing wire connector structure of claim 1, wherein, The jack contact piece comprises a terminal connecting part, a bending part and a wire piercing part which are integrally formed, the terminal connecting part is inserted into the jack insulator, the wire piercing part passes through the shell and is connected with the wire clamping end and pierces the corresponding wire to be electrically connected with the corresponding wire in a piercing mode, and the terminal connecting part is in a jack structure.

3. The insulation piercing wire connector structure of claim 1, wherein, The wire piercing part comprises a sheet-shaped body, the bending part is connected with the middle part of the front end of the body, and a transition groove, a wire clamping groove and a V-shaped guide opening which are sequentially connected and communicated are formed on the body, wherein, in the connecting process of the locking nut and the shell, the wire is guided to be embedded into the wire clamping groove through the V-shaped guide opening.

4. The insulation piercing wire connector structure of claim 3, wherein, The wire piercing part is limited in the jack insulator through a first stop structure, the wire piercing part is limited in the shell through a second stop structure, wherein the first stop structure comprises a first stop groove arranged in the jack insulator and two first stop parts arranged on both sides of the front end of the body, the second stop structure comprises a second stop groove arranged in the shell and a second stop part arranged on the body, the second stop part is connected with the front end of the body and is arranged to be inclined relative to the body, and the second stop part is located between the first stop part and the transition groove.

5. The insulation piercing wire connector structure of claim 4, wherein, ​ 6. The insulation piercing wire connector structure of claim 3, wherein, The wire clamping end comprises a wire clamping base and a wire clamping cylinder connected with the wire clamping base, a sealing element is arranged on the wire clamping base, and m wire clamping portions are arranged on the wire clamping cylinder in the circumferential direction, the wire clamping portion comprises a first inclined portion and a second inclined portion which are arranged outwardly inclined with respect to the axial direction of the wire clamping cylinder, the first inclined portion and the second inclined portion are arranged at intervals, the included angle between the first inclined portion and the second inclined portion is greater than 90° but less than 180°, the top of the first inclined portion is provided with a first inclined guide surface, the side of the first inclined portion is provided with a first groove, a first side surface and a first notch which are connected in sequence, the top of the second inclined portion is formed with a second inclined guide surface, and the side of the second inclined portion is provided with a second groove, a second side surface and a second notch which are connected in sequence, the first inclined guide surface and the second inclined guide surface cooperatively form a V-shaped guide channel, the first groove and the second groove cooperatively form a flared channel, the first side surface and the second side surface are respectively parallel to the axial direction of the first fixed end and cooperatively form a clamping channel, and the first notch and the second notch cooperatively form a notch portion, wherein the wire slides into the flared channel through the V-shaped guide channel, and then falls and clamps into the clamping channel.

7. The insulation piercing wire connector structure of claim 1, wherein, The cable clamping end comprises a cable clamping base and an annular clamping portion connected with the cable clamping base, an annular protruding portion with a notch is arranged on the cable clamping base, the notch is used for screwing the thread of the locking nut into the annular protruding portion, and the annular clamping portion comprises a plurality of strip-shaped clamping pieces arranged at intervals in the circumferential direction and extending in the axial direction.

8. The insulation piercing wire connector structure of claim 6, wherein, The wire clamping end and the shell are connected through a guide structure, the guide structure comprises a guide protruding portion arranged on the wire clamping cylinder and a guide groove arranged in the shell and matched with the guide protruding portion, and the guide protruding portion is arranged between two adjacent wire clamping portions; A limiting groove is arranged in the wire clamping end for inserting and limiting the wire piercing portion.

9. The insulation piercing wire connector structure of claim 7, wherein, A plurality of embedded portions are arranged in the locking nut, the embedded portions are used for embedding into the gap between two adjacent clamping pieces, and a limiting protrusion is further arranged in the wire clamping cylinder for limiting the cable clamped in the cable clamping end.

10. An insulation piercing, circular connector structure, characterized by It comprises: a connecting screw, a pin insulator, a shell, a locking nut, m pin contact pieces, a clamping structure and a cable sealing ring, wherein the connecting screw, the pin insulator, the shell and the locking nut are connected in sequence, the clamping structure is arranged in the accommodation space formed by the shell and the locking nut, the cable sealing ring is arranged in the clamping structure, a cable with m exposed wires is inserted into the cable sealing ring and clamped and fixed in the cable sealing ring, the wires are clamped and fixed on the clamping structure, one end of the pin contact piece is inserted into the pin insulator, the other end passes through the shell and is connected with the clamping structure, and the pin contact piece pierces the corresponding wire in a piercing manner to electrically connect with the corresponding wire.

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