Electric connector capable of preventing electric wire connecting end from deformation and fracture

Abstract

The utility model provides an electric connector for preventing deformation and fracture of a wire connecting end, which comprises a joint formed by a clamping part, a wire connecting part and a fixed mounting part which are connected in sequence. The clamping part is used for clamping the connecting seat, and the fixed mounting part is fixedly connected with the connecting seat; the wire connecting part is provided with a rectangular notch and a circular through hole which are radially penetrated; the end part of the wire is connected with a copper nose; the copper nose is inserted into the notch and is in clearance fit with the wall of the notch; and the pin shaft penetrates through the through hole and the copper nose and is clamped with the wire connecting part in a manner of rotating and reversely moving in sequence. The hole of the copper nose is sleeved on the pin shaft, and the pin shaft is clamped on the wire connecting part, so that the mounting position is stable, and the wire cannot fall off even in a vibration or dynamic working environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric connector, specifically a kind of electric connector for preventing deformation fracture of wire connecting end. BACKGROUND

[0002] In the field of electrical connection, electric connector is the key component of signal and power transmission between devices.

[0003] Traditional electric connector usually contains two parts of connector and socket. The connector is designed with an axial blind hole for inserting the wire, and is fixed and connected with the wire by cooperating with locking bolt through radially arranged threaded hole. The basic working principle of this design is that the wire is inserted into the blind hole of the connector, and then the locking bolt is connected to the threaded hole through the threaded connection, and the threaded end directly presses the wire to achieve the purpose of installation and fixation. The above structure can refer to the high-speed connector with anti-loose connector head disclosed in Chinese patent CN218215763U.

[0004] The above structure has the following defects: 1. In a vibrating or dynamic working environment, the connection between the locking bolt and the threaded hole is easily affected by external force and loosens. This loosening not only causes the wire to be subjected to reduced pressure, but also can further cause poor contact between the wire and the connector, and in severe cases, the wire can even completely separate from the connector, thereby seriously affecting the stability and reliability of the electrical connection. 2. The threaded end of the locking bolt is relatively sharp due to design, and in the process of pressing the wire, if the pressure is too large, it is easy to cause cutting or extrusion damage to the wire. This physical damage not only reduces the service life of the wire, but also can cause electrical failure, which threatens the safe and stable operation of the entire electrical system. SUMMARY

[0005] To solve the technical problems in the background art, the utility model discloses an electric connector for preventing deformation fracture of wire connecting end.

[0006] The utility model provides a kind of electric connector for preventing deformation fracture of wire connecting end, including connector, connector is by coaxial arrangement, sequentially connected clamping portion, wire connecting portion and fixed mounting part composition;Clamping portion is used to clamp socket, fixed mounting part is fixedly connected with socket;

[0007] Wire connecting portion is provided with radially penetrating rectangular slot and circular perforation;

[0008] The end of the wire is connected with a copper nose; The copper nose is inserted into the slot and gap-fitted with the slot wall.

[0009] The pin shaft penetrates the perforation and the copper nose, and is sequentially clamped with the wire connecting portion by rotating and moving reversely.

[0010] The beneficial effects of the above arrangement are: 1. Because the hole of the copper nose is sleeved on the pin shaft, and the pin shaft is clamped on the wire connecting part, the installation position is stable, and even in a vibrating or dynamic working environment, the wire will not fall off; 2. The copper nose is gap-fitted with the notch, facilitating the disassembly and assembly of the wire; 3. Because the clamping mode between the pin shaft and the wire connecting part is relatively soft, and the copper nose is gap-fitted with the notch, direct compression and cutting of the wire by the threaded end of the traditional locking bolt are avoided; this design effectively reduces the damage to the wire during the connection process, prolongs the service life of the wire, and reduces the risk of electrical failure; 4. The design of the pin shaft makes the installation and disassembly of the wire more convenient; by rotating and moving the pin shaft in the opposite direction, the wire can be easily fixed and released, improving work efficiency.

[0011] The specific structure of the pin shaft clamped with the wire connecting part is that the notch and the through hole are in communication, and the extension direction is perpendicular; the through hole extends radially to have a insertion slot penetrating the wire connecting part; the side wall of the wire connecting part is provided with a recess, a clamping groove in communication with one end of the through hole; one end of the pin shaft is provided with a radially extending clamping rod, the clamping rod passes through the insertion slot and clamps the clamping groove.

[0012] In order to improve the position stability of the pin shaft, the further design is that the other end of the pin shaft is provided with a radially protruding head, and the head is clamped at one end of the through hole.

[0013] After the pin shaft is clamped and installed, the position is unstable, and the pin shaft is prone to axial movement and the clamping rod is prone to disengaging from the clamping groove. Based on this, the further improvement is that a spring is sleeved on the pin shaft, one end of the spring is connected to the head, and the other end is connected to the side wall of the wire connecting part. When the pin shaft is installed, the spring is in a compressed state, the elastic force of the spring drives the head of the pin shaft away from the wire connecting part, so that the clamping rod forms a pressure on the groove bottom of the clamping groove, thereby improving the stability of the installation structure of the pin shaft; and when the head is impacted by external force, it can also play a buffering role under the action of the spring, so that the utility model is not easy to be damaged.

[0014] The installation structure of the clamping rod and the pin shaft directly affects the difficulty of forming, based on this, the further improvement is that one end of the pin shaft is provided with a radially extending installation slot, and the clamping rod is inserted into the installation slot and fixed by welding.

[0015] The notch on the two sides of the wire connecting part in the radial direction is generally flat, which will affect the strength of the wire connecting part, based on this, the further improvement is that the notch on the two sides of the wire connecting part in the axial direction is provided with a protruding lug. The lug not only serves to improve the structural strength of the connector, but also serves to limit the copper nose, so that the inner wall on the same side of the copper nose abuts against the pin shaft, and the outer wall abuts against the lug, so as to improve the position stability of the copper nose after installation.

[0016] If the protrusion is provided with an edge, the copper nose will be scratched, and therefore, further improvement is that the protrusion is arc-shaped.

[0017] The conventional connecting structure of the fixed mounting portion and the socket is that the fixed mounting portion is provided with a through hole, and a bolt passes through the through hole and is threadedly connected with the socket, and in this structure, the head of the bolt has a small contact area with the fixed mounting portion, and the fixed mounting portion is prone to concave deformation, and therefore, further improvement is that the fixed mounting portion is provided with a connecting hole, and the connecting hole is a threaded hole and is also a blind hole; in this way, the fixed mounting portion is connected and fixed with the socket only through the threaded connection of the threaded hole and the connecting hole, the bolt does not contact the fixed mounting portion, the stress area of the fixed mounting portion is large, and the fixed mounting portion is not prone to concave deformation.

[0018] The contact area of the fixed mounting portion and the socket directly affects the connection stability of the fixed mounting portion and the socket, and therefore, further improvement is that the fixed mounting portion is rectangular, and one side of the fixed mounting portion, which is provided with the connecting hole, is attached to the socket; the attachment also plays a limiting role, so that the fixed mounting portion is not prone to rotation, and the stability of the connecting structure is higher; and when the fixed mounting portion and the socket are locked and fixed and generate pressure to each other, the fixed mounting portion is not prone to deformation due to the larger contact area of the fixed mounting portion and the socket.

[0019] In order to simplify the forming process of the connecting hole and the through hole, further design is that the extension directions of the connecting hole and the through hole are the same; in this way, the connecting hole and the through hole can be formed through one clamping, so that the forming process is simplified.

[0020] The copper nose is sleeved on the pin shaft, the pin shaft is clamped on the wire connecting portion, and the installation position is stable, so that the wire will not fall off even in a vibrating or dynamic working environment; 2, the copper nose and the slot gap fit, facilitating the disassembly and assembly of the wire; 3, since the clamping mode between the pin shaft and the wire connecting portion is relatively soft, and the copper nose and the slot gap fit, direct compression and cutting of the wire by the threaded end of the traditional locking bolt are avoided; this design effectively reduces the damage of the wire in the connection process, prolongs the service life of the wire, and reduces the risk of electrical failure; 4, the design of the pin shaft makes the installation and disassembly of the wire more convenient; by rotating and reversely moving the pin shaft, the wire can be easily fixed and released, and the working efficiency is improved; 5, the protrusion not only improves the strength of the wire connecting portion, but also improves the stability of the installation structure of the copper nose; 6, the connecting hole and the through hole are formed through one clamping, and the processing difficulty is lower. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model is further described below in combination with the drawings and examples.

[0022] Figure 1 is the structural schematic diagram of the utility model;

[0023] Figure 2 is another perspective view of the structure of the utility model;

[0024] Figure 3 is a top view of the utility model;

[0025] Figure 4 is Figure 3 the sectional view of A-A in the figure;

[0026] Figure 5 is the structure schematic diagram of the joint;

[0027] Figure 6 is another perspective view of the structure of the joint;

[0028] Figure 7 is Figure 6 the enlarged view of B in the figure;

[0029] Figure 8 is the bottom view of the joint;

[0030] Figure 9 is Figure 8 the sectional view of C-C in the figure;

[0031] Figure 10 is Figure 9 the sectional view of D-D in the figure;

[0032] Figure 11 is the structure schematic diagram of the pin shaft;

[0033] Figure 12 is another perspective view of the structure of the pin shaft;

[0034] In the figure: 1, the clamping part; 2, the electric wire connecting part; 3, the fixed installation part; 4, the notch; 5, the perforation; 6, the pin shaft; 7, the clamping groove; 8, the clamping rod; 9, the spring; 10, the protruding block; 11, the connecting hole; 12, the insertion slot; 21, the first recess; 22, the second recess; 61, the head; 62, the installation slot; 63, the protruding plate. DETAILED DESCRIPTION

[0035] The utility model will be further explained in detail in combination with the drawings. These drawings are all simplified schematic diagrams, just to schematically illustrate the basic structure of the utility model, therefore it just shows the structure related to the utility model.

[0036] As Figures 1-7 shown, the utility model discloses a kind of electric connectors for preventing electric wire connecting end deformation fracture, including joint, and joint is constituted by coaxially arranged, sequentially connected clamping part 1, electric wire connecting part 2 and fixed installation part 3.

[0037] The clamping part 1 is inserted into the insertion hole of the socket to realize electrical connection. The diameter of the clamping part 1 is smaller than that of the wire connecting part 2, so that the connection part forms a clamping platform and is clamped with the insertion hole of the socket. In this way, the depth of the joint inserted into the socket is prevented from being too shallow, which affects the stability of the joint clamped with the socket; and the depth of the joint inserted into the socket is prevented from being too deep, which causes the connection part of the joint and the socket to be deformed and damaged.

[0038] The fixed mounting part 3 is provided with a radially extending connecting hole 11, which is a threaded hole and also a blind hole. The bolt passes through the socket and is screwed with the connecting hole 11, and is locked to connect and fix the fixed mounting part 3 with the socket. In this way, the fixed mounting part 3 is connected and fixed with the socket only by screwing the stud with the connecting hole 11, and the bolt does not contact the fixed mounting part 3, so that the fixed mounting part 3 has a large stress area and is not prone to concave deformation.

[0039] The fixed mounting part 3 is rectangular, and one side provided with the connecting hole 11 is attached to the socket. The attachment also plays a limiting role, so that the fixed mounting part 3 is not prone to rotation, and the stability of the connection structure is higher; and the contact area of the fixed mounting part 3 with the socket is larger, and the fixed mounting part 3 is more difficult to deform.

[0040] The wire connecting part 2 is provided with a radially extending rectangular slot 4 and a circular through hole 5, and the slot 4 communicates with the through hole 5, and the extension directions are perpendicular. The end of the wire is connected with a copper nose, and the copper nose is inserted into the slot 4 and is in gap cooperation with the slot wall of the slot 4, so as to facilitate disassembly and assembly of the copper nose.

[0041] The through hole 5 radially extends two symmetrical insertion grooves 12 penetrating through the wire connecting part 2; the side wall of the wire connecting part 2 is provided with a recessed clamping groove 7 communicating with one end of the through hole 5, and the clamping groove 7 is provided in a symmetrical arrangement of two and is perpendicular to the through hole 5. One end of the pin shaft 6 is provided with a radially extending clamping rod 8, which passes through the insertion groove 12, rotates 90° first, and then moves reversely to be clamped with the clamping groove 7.

[0042] As shown in Figure 12 , one end of the pin shaft 6 is provided with a radially extending mounting groove 62, and the clamping rod 8 is inserted into the mounting groove 62 and is fixed by welding. The lengths of the two ends of the clamping rod 8 beyond the pin shaft 6 are consistent.

[0043] As shown in Figure 11 , the other end of the pin shaft 6 is provided with a circular, radially protruding head 61, which is clamped with one end of the through hole 5 to realize insertion limiting of the pin shaft 6 and to improve the position stability of the pin shaft 6 after installation. The outer wall of the head 61 is further provided with a protruding flange 63 connected with the two sides of the head 61 and coinciding with the center of the head 61, which provides a force point for manual operation.

[0044] The spring 9 is sleeved on the pin shaft 6, one end of the spring 9 is connected with the head 61, and the other end is connected with the side wall of the wire connecting part 2. When the pin shaft 6 is installed, the spring 9 is in a compressed state, the elastic force of the spring 9 drives the head 61 of the pin shaft 6 to be away from the wire connecting part 2, the clamping rod 8 forms a pressure on the groove bottom of the clamping groove 7, and therefore the installation stability of the pin shaft 6 is improved; and when the head 61 is impacted by external force, the spring 9 can also play a buffering role, so that the utility model is not easy to be damaged.

[0045] As shown in Figure 10 The notched groove 4 is provided with the protruding protrusions 10 on the two sides in the axial direction of the wire connecting part 2. The protrusions 10 are not only used for improving the structural strength of the joint, but also play a limiting role on the copper nose, so that the inner wall on the same side of the copper nose abuts against the pin shaft 6, and the outer wall abuts against the protrusion 10, so as to improve the position stability of the copper nose after installation. The protrusions 10 are arc-shaped, so that the copper nose is not scratched.

[0046] As shown in Figure 8 And Figure 9 The wire connecting part 2 is provided with the first recess 21 and the second recess 22 coaxial with the through hole 5, and the first recess 21 and the second recess 22 are located on the opposite sides of the wire connecting part 2. The head 61 is hidden in the first recess 21, so that the pin shaft 6 is not easy to be impacted by external force. The clamping groove 7 is arranged on the second recess 22, so that the processing is more convenient.

[0047] The connecting hole 11 is the same as the extension direction of the through hole 5. In this way, the connecting hole 11 and the through hole 5 can be formed by one-time clamping, so that the forming process is simplified.

[0048] Compared with the prior art, the advantages of the embodiment are: 1. Since the hole of the copper nose is sleeved on the pin shaft 6, and the pin shaft 6 is clamped on the wire connecting part 2, the installation position is stable, and even in a vibrating or dynamic working environment, the wire will not fall off; 2. Since the clamping mode between the pin shaft 6 and the wire connecting part 2 is relatively soft, and the copper nose and the notched groove 4 are in clearance fit, the direct compression and cutting of the wire by the threaded end of the traditional locking bolt are avoided; this design effectively reduces the damage of the wire during the connection process, prolongs the service life of the wire, and reduces the risk of electrical failure; 3. The design of the pin shaft 6 makes the installation and disassembly of the wire more convenient; by rotating and reversely moving the pin shaft 6, the wire can be easily fixed and released, and the working efficiency is improved.

[0049] Based on the above ideal embodiments according to the utility model, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. An electrical connector for preventing deformation breakage of a terminal end of an electrical wire comprising a terminal, characterized by: The joint is composed of coaxial arrangement, clamping part (1), wire connecting part (2) and fixed mounting part (3) connected in sequence; the clamping part (1) is used for clamping socket, and the fixed mounting part (3) is fixedly connected with the socket; The wire connecting part (2) is provided with a radially penetrating rectangular notch (4) and a circular perforation (5); The end of the wire is connected with a copper nose; the copper nose is inserted into the notch (4) and gap fits with the notch wall of the notch (4); The pin shaft (6) penetrates the perforation (5) and the copper nose, and is clamped with the wire connecting part (2) by rotating and moving reversely in sequence.

2. The electrical connector of claim 1, wherein: The notch (4) and the perforation (5) are communicated, and their extension directions are perpendicular; The perforation (5) extends radially and has an insertion slot (12) penetrating the wire connecting part (2); The side wall of the wire connecting part (2) is provided with a recessed clamping groove (7) communicated with one end of the perforation (5); One end of the pin shaft (6) is provided with a radially extending clamping rod (8), which passes through the insertion slot (12) and clamps the clamping groove (7).

3. The electrical connector of claim 2, wherein: The other end of the pin shaft (6) is provided with a radially protruding head (61), which is clamped in one end of the perforation (5).

4. The electrical connector of claim 3, wherein: The pin shaft (6) is sleeved with a spring (9), one end of the spring (9) is connected with the head (61), and the other end is connected with the side wall of the wire connecting part (2).

5. The electrical connector of claim 2, wherein: One end of the pin shaft (6) is provided with a radially extending mounting slot (62), the clamping rod (8) is inserted into the mounting slot (62) and fixed by welding.

6. The electrical connector of claim 1, wherein: The notch (4) is provided with protruding lugs (10) on both sides of the axial direction of the wire connecting part (2).

7. An electrical connector for preventing deformation and breakage of the terminal end of an electrical cord as set forth in claim 6, wherein: The lug (10) is arc-shaped.

8. The electrical connector of claim 1, wherein: The fixed mounting part (3) is provided with a connecting hole (11), the connecting hole (11) is a threaded hole, and is also a blind hole.

9. The electrical connector of claim 8, wherein: The fixed mounting part (3) is rectangular, and one side provided with the connecting hole (11) is attached to the socket.

10. The electrical connector of claim 8, wherein: The connecting hole (11) has the same extension direction as the perforation (5).

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