Connector with novel tail cover

Abstract

The utility model discloses a connector with a novel tail cover. The connector comprises a sheath main shell, a tail cover and a plurality of terminals, the front end of the sheath main shell is provided with at least one row of axial first through holes, the rear end face of the sheath main shell is provided with a fixing groove, the fixing groove can be connected with a tail cover in an inserted and sleeved mode, and the rear end of each first through hole is axially connected with a terminal in an inserted and sleeved mode. A row of wire clamping grooves penetrating through the outer wall are formed in the upper surface or / and the lower surface of the tail cover, the arrangement of the wire clamping grooves is the same as that of the first through holes, and wire fixing bosses are symmetrically arranged in the middle of each wire clamping groove; the front end of the cable can crimp the rear end of the terminal; when force is applied to the cable, the cable can enter the cable clamping groove and is limited and restrained by the cable fixing boss, or is separated from the limiting and restraining of the cable fixing boss and is moved out of the cable clamping groove. The utility model has the advantages of simple product structure, simple assembly process, high production speed, low cost and convenience in maintenance and replacement.

Description

Technical Field

[0001] The utility model relates to the field of electrical connectors, in particular to a connector with a novel tail cover. Background Art

[0002] With the booming market, new energy vehicle wiring harness connectors, consumer wiring harness connectors, communication wiring harness connectors, medical / industrial and other connectors are being used more and more widely, and the market demand for connectors is increasing. As a result, various industries have increasingly stringent requirements on the quality, performance and process of connectors.

[0003] At present, connectors provide stable wiring harness transmission of voltage, current, signals, etc. between devices. The commonly used connector structure is: the wiring harnesses are passed through the through holes of the end cover of the connector one by one, and the diameter of each through hole matches the outer diameter of the connected wiring harness. Its defects are: First, during assembly, the wiring harnesses need to be passed through the through holes one by one, and then crimped and assembled into plastic shells for terminals. When there are too many wiring harnesses, production is a complicated and arduous process, product assembly is difficult, assembly efficiency is low, and labor is consumed; second, when one of the wiring harnesses has a problem, the entire set of wiring harness products needs to be crimped and assembled back and forth, resulting in waste of personnel and processes, and complicated parts replacement and maintenance; third, the mold structure is complicated, and the parts production process is high and the cost is high during the production process, which reduces the yield rate of parts. Utility Model Content

[0004] In order to solve one or more of the above problems, the utility model provides a connector with a novel tail cover.

[0005] According to one aspect of the utility model, the connector with a novel tail cover comprises: a main housing of a sheath, a tail cover and a plurality of terminals;

[0006] The front end of the main housing of the sheath is provided with at least one row of axial first through holes and the rear end face is provided with a fixing groove, the fixing groove can be plugged into and connected to the tail cover, and the rear end of each first through hole is axially plugged into and connected to the terminal;

[0007] The upper surface or / and lower surface of the tail cover is provided with a row of wire clamping grooves penetrating the outer wall, the arrangement of the wire clamping grooves is the same as the arrangement of the first through holes, and a wire fixing boss is symmetrically provided in the middle of each wire clamping groove;

[0008] The front end of the cable can be crimped with the rear end of the terminal; when force is applied to the cable, the cable can enter the wire clamping groove and be restrained by the wire fixing boss, or break away from the restraint of the wire fixing boss and move out of the wire clamping groove.

[0009] In some embodiments, the tail cover includes a body made of plastic material, and a row of wire clamping grooves are evenly spaced on the upper surface and / or lower surface of the body. The outer side of the wire clamping groove is a guide opening formed by two guide sub-plates surrounding each other, and a wire fixing boss is provided at the connection between the guide sub-plate and the wire clamping groove.

[0010] In some embodiments, the cable clamping groove is an arc groove with an open outer end, and the diameter of the arc groove is the same as that of the cable.

[0011] In some embodiments, the guide split plate is an inclined surface, so that the guide opening is in the shape of an isosceles trapezoid;

[0012] Or the upper end of the guide plate is also provided with a rounded corner.

[0013] In some embodiments, the wire fixing boss has rounded corners.

[0014] In some embodiments, the two side surfaces of the tail cover body are symmetrically provided with protruding outer card ends, the inner side of the fixing groove is symmetrically provided with inner card grooves, the body sleeve is connected to the fixing groove and the outer card end is snap-fitted into the inner card groove.

[0015] In some embodiments, an axial positioning notch is provided in the middle or at the end of the inner card slot, and the compressed outer card end slides through the inner card slot and elastically returns to the positioning notch.

[0016] In some embodiments, the inner contour of the fixing groove and the outer contour of the body are matched, and the two are interference-fitted.

[0017] In some embodiments, the inner card slot is rectangular, the outer card end has a rectangular rear end and a chamfered front end, and the positioning notch is rectangular;

[0018] Or the fixing groove is a rectangular groove, and the tail cover is a rectangular block.

[0019] In some embodiments, the main housing of the sheath is made of plastic, or the main housing of the sheath further fixes the terminal via TPA locking.

[0020] The beneficial effects of the connector with the new tail cover are: first, the terminals of each cable are pre-crimped and then inserted and clamped on the open wire slot, which greatly simplifies the assembly process, makes the assembly process simple, saves labor, improves production speed and reduces costs; second, the defective wiring harness or parts can be taken out of the wire slot of the tail cover by removing the tail cover, which is convenient for maintenance and replacement; third, the tail cover has a simple structure and is easy to process, the mold structure has high precision, low cost and stable performance; fourth, the wire fixing boss can effectively limit the cable position and enhance the mold strength at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional schematic diagram of a connector with a novel tail cover according to an embodiment of the utility model;

[0022] Figure 2 for Figure 1 A three-dimensional schematic diagram of a connector with a novel tail cover without a main housing of the sheath is shown;

[0023] Figure 3 for Figure 2 A three-dimensional schematic diagram of the tail cover shown;

[0024] Figure 4 for Figure 3 A schematic diagram of the left side view of the tail cover shown;

[0025] Figure 5 for Figure 1 A schematic left view of the main housing of the sheath is shown;

[0026] In the figure:

[0027] The sheath main shell 1, the first through hole 10, the fixing groove 11, the inner card groove 12, the positioning notch 13;

[0028] Tail cover 2, body 20, guide plate 200, wire clamping groove 201, wire fixing boss 202, guide opening 203, fillet 204, chamfer 205, outer clamping end 206, lateral through hole 207;

[0029] Terminal 3; TPA4, clamping arm 41; cable 01. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0031] Figures 1 to 5 A connector with a new tail cover according to an embodiment of the utility model is schematically shown. As shown in the figure, the connector with the new tail cover comprises: a main housing 1, a tail cover 2 and a plurality of terminals 3;

[0032] The front end of the main housing 1 of the sheath is provided with at least one row of axial first through holes 10 and the rear end face is provided with a fixing groove 11. The main housing 1 of the sheath can be made of plastic material. The fixing groove 11 can be plugged into the tail cover 2, and the rear end of each first through hole 10 is axially plugged into the terminal 3;

[0033] The upper surface or / and lower surface of the tail cover 2 is provided with a row of wire-clip grooves 201 penetrating the outer wall. A preferred configuration is as follows: the tail cover 2 includes a body 20 made of plastic material, and a row of wire-clip grooves 201 are provided at equal intervals on the upper surface or / and lower surface of the body 20. The arrangement of the wire-clip grooves 201 is the same as that of the first through hole 10, and a wire-fixing boss 202 is symmetrically provided in the middle of each wire-clip groove 201. The wire-clip groove 201 can preferably be an arc groove with an open outer end, and the diameter of the arc groove is the same as that of the cable 01. The wire-fixing boss 202 can preferably be rounded.

[0034] The front end of the cable 01 can be crimped to the rear end of the terminal 3; when force is applied to the cable 01, the cable 01 can enter the wire clamping groove 201 and be limited by the wire fixing boss 202, or break away from the limit constraint of the wire fixing boss 202 and move out of the wire clamping groove 201.

[0035] The number of the wire slots 201 of the connector with the new tail cover can be modularly designed and selected according to the actual needs of the product, wherein the cable 01 can be pre-crimped with the terminal 3, and then the cable 01 can be clamped in the wire slot 201 from top to bottom, and then directly inserted into the fixing slot 10 of the tail cover 2 as a whole, and the two cooperate to fix the wiring harness; during maintenance and assembly, the tail cover can be removed and the corresponding wiring harness can be conveniently replaced.

[0036] The beneficial effects of the connector with the new tail cover are as follows: first, each cable 01 is pre-crimped with the terminal 3, and then inserted and clamped on the open wire slot 201. Compared with the cable 01 passing through the through hole and then carrying the tail cover for crimping, the assembly process is greatly simplified, the assembly process is simple, labor is saved, and each process can be modularly assembled, which improves production speed and reduces cost; second, if a certain cable 01 or one of its parts needs to be replaced, the tail cover 2 is removed to remove the defective wiring harness or parts from the wire slot 201 of the tail cover 2, avoiding the cumbersome process of conventional products such as replacing parts and destroying other parts and re-crimping and assembling, and maintenance and replacement are convenient, and rework is convenient; third, the structure is simple, the mold structure is also simple, the part structure is easy to process, the mold structure is high in precision, low in cost, and stable in performance; fourth, the wire slot 201 is provided with a fixed wire boss 202 to prevent the cable 01 from moving, which can effectively limit the position of the cable 01 and enhance the mold strength.

[0037] Furthermore, the outer side of the wire slot 201 is a guide opening 203 formed by two guide sub-plates 200 surrounding each other, and a wire fixing boss 202 is provided at the connection between the guide sub-plate 200 and the wire slot 201. Preferably, the guide sub-plate 200 is an inclined surface, so that the guide opening 203 is in the shape of an isosceles trapezoid, and the outer end size of the guide opening 203 is larger than the inner end size. Preferably, a rounded corner 204 is also provided at the upper end of the guide sub-plate 200. The beneficial effect is that the structure is simple and stable, and the processing is convenient, and the cable 01 is convenient to be inserted or removed, and the assembly is convenient.

[0038] Preferably, each guide sub-plate 200 is further provided with a chamfer 205 at the front end. The chamfer 205 can facilitate the assembly of the tail cover 2 into the fixing groove 11.

[0039] Furthermore, the two side surfaces of the body 20 of the tail cover 2 are symmetrically provided with protruding outer card ends 206, and the inner side surface of the fixing groove 11 is symmetrically provided with an inner card groove 12. The body 20 is inserted into the fixing groove 11 and the outer card end 206 is snap-fitted into the inner card groove 12. Preferably, an axial positioning notch 13 is provided in the middle or at the end of the inner card groove 12, and the compressed outer card end 206 slides to the positioning notch 13 through the inner card groove 12, and elastically recovers to enter the positioning notch 13. Preferably, the inner card groove 12 is rectangular, the rear end of the outer card end 206 is rectangular and the front end is chamfered, and the positioning notch 13 is rectangular. The beneficial effects are: the structure is simple, the connection strength is high, and it is easy to assemble.

[0040] Furthermore, the inner contour of the fixing groove 11 fits the outer contour of the body 20 of the tail cover 2, and the plug-in fit between the two is an interference fit. Preferably, the fixing groove 11 is a rectangular groove, and the tail cover 2 is a rectangular block; the beneficial effect is that the structure can further improve the structural strength and stability after assembly.

[0041] Furthermore, rectangular lateral through holes 207 are symmetrically provided on both sides of the body 20 , and the fixing groove 11 is provided with corresponding end holes.

[0042] Further, the fixing slot 11 can be inserted into a tail cover 2 or several tail covers 2 stacked up and down; preferably, the upper and lower surfaces of the tail cover 2 are each provided with a row of wire slots 201 to form a double-row tail cover 2; one surface of the tail cover 2 is provided with a row of wire slots 201 to form a single-row tail cover 2. The fixing slot 11 can be inserted into a single-row tail cover 2 or a double-row tail cover 2. Preferably, the fixing slot 11 can be inserted into several single-row tail covers 2 stacked up and down. The fixing slot 11 can be inserted into several double-row tail covers 2 stacked up and down; the fixing slot 11 can be inserted into a combination of several single-row tail covers 2 and double-row tail covers 2. Its beneficial effects are: this setting can be applicable to connection applications in more scenarios, modular assembly, and reduce the number of parts.

[0043] Furthermore, it also includes TPA4, which is inserted into the locking hole of the main housing 1 of the sheath to fix the terminal 3. TPA4 includes two clamping cantilevers 41, each of which is provided with a plurality of tooth-shaped restraining holes, and the clamping cantilever 41 is inserted into the locking hole, and each tooth-shaped restraining hole fixes a terminal 3. Its beneficial effect is that TPA can well locate the position of the terminal, realize the terminal stop, ensure the accuracy and strength of the connection, and at the same time prevent poor connection or displacement during use.

[0044] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A connector with a new tail cover, characterized in that: include: A main housing (1), a tail cover (2) and a plurality of terminals (3); The front end of the main housing (1) of the sheath is provided with at least one row of axial first through holes (10) and the rear end face is provided with a fixing groove (11), the fixing groove (11) can be plugged into and connected to the tail cover (2), and the rear end of each first through hole (10) is axially plugged into and connected to the terminal (3); The upper surface or / and the lower surface of the tail cover (2) is provided with a row of wire-holding grooves (201) penetrating the outer wall, the arrangement of the wire-holding grooves (201) is the same as the arrangement of the first through holes (10), and a wire-fixing boss (202) is symmetrically provided in the middle of each wire-holding groove (201); The front end of the cable (01) can be crimped onto the rear end of the terminal (3); when force is applied to the cable (01), the cable (01) can enter the wire clamping slot (201) and be restrained by the wire fixing boss (202), or break away from the restraint of the wire fixing boss (202) and move out of the wire clamping slot (201).

2. The connector with a new tail cover according to claim 1, characterized in that: The tail cover (2) comprises a body (20) made of plastic material, a row of wire-holding grooves (201) being arranged at equal intervals on the upper surface or / and the lower surface of the body (20), the outer side of the wire-holding groove (201) being a guide opening (203) formed by two guide sub-plates (200) surrounding each other, and the wire-fixing boss (202) being arranged at the connection between the guide sub-plate (200) and the wire-holding groove (201).

3. The connector with a new tail cover according to claim 2, characterized in that: The cable clamping groove (201) is a circular arc groove with an open outer end, and the diameter of the circular arc groove is the same as that of the cable (01).

4. The connector with a new tail cover according to claim 2, characterized in that: The guide plate (200) is an inclined surface, so that the guide opening (203) is in the shape of an isosceles trapezoid; Alternatively, the upper end of the guide sub-plate (200) is further provided with a rounded corner (204).

5. The connector with a new tail cover according to claim 1, characterized in that: The wire fixing boss (202) has rounded corners.

6. The connector with a new tail cover according to claim 1, characterized in that: The two side surfaces of the body (20) of the tail cover (2) are symmetrically provided with protruding external card ends (206), the inner side surface of the fixing groove (11) is symmetrically provided with internal card grooves (12), the body (20) is plug-inly connected to the fixing groove (11) and the external card ends (206) are snap-fitted into the internal card groove (12).

7. The connector with a new tail cover according to claim 6, characterized in that: An axial positioning notch (13) is provided in the middle or at the end of the inner card slot (12), and the compressed outer card end (206) slides through the inner card slot (12) to and elastically returns to the positioning notch (13).

8. The connector with a new tail cover according to claim 7, characterized in that: The inner contour of the fixing groove (11) and the outer contour of the main body (20) are fitted together, and the two are interference-fitted.

9. The connector with a new tail cover according to claim 8, characterized in that: The inner card slot (12) is rectangular in shape, the outer card end (206) has a rectangular rear end and a chamfered front end, and the positioning notch (13) is rectangular in shape; Or the fixing groove (11) is a rectangular groove, and the tail cover (2) is in the shape of a rectangular block.

10. The connector with a new tail cover according to claim 9, characterized in that: The main housing (1) of the sheath is made of plastic. Alternatively, the main housing (1) of the sheath further locks and fixes the terminal (3) via the TPA (4).

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