Crimping type female joint

Abstract

The utility model discloses a crimping type female head which comprises an insulating cylinder, the insulating cylinder is provided with a plurality of stepped holes used for accommodating conductive terminals, the aperture of the front end of each stepped hole is smaller than the aperture of the rear end of each stepped hole, the rear end of the insulating cylinder is provided with a fixing seat in an inserting manner, the fixing seat is connected with the insulating cylinder in a clamping manner, and the rear end of each conductive terminal is provided with a wiring groove. A wire core of a wire harness is fixed in the wiring groove, a retaining plate is arranged at the front end of the fixing seat, the conductive terminal is provided with a retaining surface matched with the retaining plate, the fixing seat is provided with a wire hole for the wire harness to penetrate through, and the wire hole is communicated with the stepped hole. Compared with the prior art, according to the utility model, the wire core is inserted into the wiring groove and then is compressed and fixed, the structural design ensures the reliability of connection between the wire core and the conductive terminal, and the retaining plate can effectively prevent the conductive terminal from withdrawing. The detachable design of the conductive terminals and the insulating cylinder is convenient for hiding the fixed wiring groove and the wire core in the insulating cylinder, so that the waterproof performance of the female head is improved, and the reliable connection of the wire core and the conductive terminals is maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of connector manufacturing, in particular to a crimping type female connector. Background Art

[0002] A connector typically consists of an insulating body, conductive terminals, and a cable. The insulating body and conductive terminals are integrally formed, with the conductive terminals extending from the insulating body to connect to the cable. Currently, the cable is connected to the conductive terminals using soldering, which is then injection-molded to provide waterproofing. However, during use, soldering can sometimes result in cold joints, leading to unstable signal transmission. Furthermore, the conductive terminals are relatively rigid, while the cables are relatively flexible. During use, the connector can bend at the junction of the conductive terminals and the cable. Excessive bending can cause the conductive terminals and cable to become disconnected. Utility Model Content

[0003] The utility model provides a crimping female connector, which is used to solve the problem of unstable signal transmission caused by the existing connector using soldering to connect the conductive terminal and the cable.

[0004] The utility model provides a crimping female connector, comprising an insulating cylinder, wherein the insulating cylinder is provided with a plurality of stepped holes for accommodating conductive terminals, the aperture of the front end of the stepped hole is smaller than the aperture of the rear end, the rear end of the insulating cylinder is inserted with a fixing seat, the fixing seat is clamped with the insulating cylinder, the rear end of the conductive terminal is provided with a wiring groove, the wiring groove is fixed with a wire core of a wiring harness, the front end of the fixing seat is provided with a stop plate, the conductive terminal is provided with a stop surface that cooperates with the stop plate, the fixing seat is provided with a wire hole for the wiring harness to pass through, and the wire hole is connected to the stepped hole.

[0005] Preferably, a clamping hole is provided at the rear end of the insulating cylinder, a convex block that cooperates with the clamping hole is fixed on the outer wall of the fixing seat, and a guide surface is provided on the convex block.

[0006] Preferably, the rear end of the insulating cylinder is covered with a protective cylinder.

[0007] Preferably, a side hole is provided on the outer side of the fixing seat, and a positioning plate adapted to the side hole is provided at the rear end of the insulating cylinder.

[0008] Preferably, the retaining plate is an arc-shaped plate, and a plurality of the retaining plates are evenly distributed on the outside of the conductive terminal.

[0009] Preferably, the retaining plate is arranged at an angle, the front end of the retaining plate is close to the conductive terminal, and the conductive terminal is provided with an inclined surface at the stop surface that is adapted to the retaining plate.

[0010] Preferably, an observation hole is provided on the wall of the wiring slot.

[0011] Preferably, the stepped hole includes, from front to back, a first through hole, a second through hole and a third through hole, a reducing hole is provided at one end of the second through hole close to the third through hole, the end of the reducing hole with a larger aperture is close to the third through hole, and the conductive terminal is provided with a convex ring adapted to the edge diameter hole.

[0012] Preferably, the insulating cylinder is provided with a weight-reducing groove, and the weight-reducing groove is adjacent to the third through hole.

[0013] Compared to the prior art, the present invention inserts the wire core into the wiring slot and then presses it securely. This structural design ensures a reliable connection between the wire core and the conductive terminal. The design of the fixing seat, retaining plate, stop surface, and stepped hole facilitates assembly of the conductive terminal and the insulating barrel and effectively prevents the conductive terminal from withdrawing. The removable design of the conductive terminal and the insulating barrel facilitates concealing the fixed wiring slot and wire core within the insulating barrel, improving the waterproof performance of the female connector while maintaining a reliable connection between the wire core and the conductive terminal, thereby ensuring stable signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0017] Figure 3 This is a structural diagram of the fixing seat of the utility model;

[0018] Figure 4 This is a schematic structural diagram of the insulating cylinder of the present utility model;

[0019] Figure 5 It is a structural schematic diagram of the conductive terminal of the present utility model.

[0020] Reference numerals:

[0021] 1. Insulating tube, 11. Stepped hole, 12. Clamping hole, 13. Positioning plate, 14. Weight reduction groove, 2. Conductive terminal, 21. Wiring groove, 22. Stop surface, 23. Inclined surface, 24. Observation hole, 25. Raised ring, 3. Fixed seat, 31. Retaining plate, 32. Bump, 33. Side hole, 321. Guide surface, 4. Wire harness, 41. Wire core, 5. Protective tube. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Refer to the attached Figure 1 and attached Figure 2 The present invention provides a crimping female connector, comprising an insulating barrel 1, the insulating barrel 1 being provided with a plurality of stepped holes 11 for accommodating conductive terminals 2, the aperture of the front end of the stepped holes 11 being smaller than the aperture of the rear end, and the conductive terminals 2 being inserted into the stepped holes 11 from the back to the front. A fixing seat 3 is inserted into the rear end of the insulating barrel 1, the fixing seat 3 being snap-fitted to the insulating barrel 1, the rear end of the conductive terminal 2 being provided with a wiring slot 21, the wiring slot 21 being fixed with a wire core 41 of a wiring harness 4, the front end of the fixing seat 3 being provided with a stop plate 31, the conductive terminal 2 being provided with a stop surface 22 that cooperates with the stop plate 31, the fixing seat 3 being fixed in the insulating barrel 1 by snapping, the stop plate 31 being pressed against the stop surface 22 to prevent the conductive terminal 2 from retreating, the fixing seat 3 being provided with a wire hole for the wiring harness 4 to pass through, the wire hole being connected to the stepped hole 11. In the present invention, the cable is inserted into the wiring slot 21 through the fixing seat 3, and then the wiring slot 21 and the wire core 41 are compressed or flattened by a tool to ensure that the conductive terminal 2 and the wire core 41 are reliably connected. After the wiring slot 21 and the wire core 41 are fixed, the conductive terminal 2 is inserted into the stepped hole 11, and the fixing seat 3 is inserted into the insulating tube 1. At this time, the retaining plate 31 on the fixing seat 3 presses against the stop surface 22 to prevent the conductive terminal 2 from retreating. The wiring slot 21 and the wire core 41 are hidden in the insulating tube 1. When the female connector is in use, bending the cable outside the insulator will not affect the wiring slot 21 and the wire core 41, and will not damage the connection between the conductive terminal 2 and the wire core 41. Secondly, the connection between the cable and the conductive terminal 2 is hidden in the insulating tube 1, which is conducive to improving the waterproof performance of the female connector.

[0024] An embodiment of the connection between the fixing seat 3 and the insulating tube 1: Figure 3 and attached Figure 4 The rear end of the insulating cylinder 1 is provided with a latch hole 12. A protrusion 32 is fixed to the outer wall of the fixing base 3, which engages with the latch hole 12. The protrusion 32 has a guide surface 321. When the fixing base 3 is inserted into the insulating cylinder 1, the guide surface 321 guides the protrusion 32 into the insulating cylinder 1. The protrusion 32 then moves along the insulating cylinder 1 into the latch hole 12. Specifically, there are two protrusions 32, symmetrically distributed on the fixing base 3.

[0025] As another embodiment of the present invention, the rear end of the insulating cylinder 1 is covered with a protective cylinder 5 , which protects the protrusion 32 in the clamping hole 12 from being exposed to the outside, thereby preventing the protrusion 32 from being pressed by mistake.

[0026] Specifically, the rear end of the protection tube 5 extends beyond the rear end of the insulation tube 1 to facilitate injection molding.

[0027] In another embodiment of the present invention, a side hole 33 is provided on the outer side of the fixing base 3, and a positioning plate 13 is provided at the rear end of the insulating tube 1 to fit within the side hole 33. When the fixing base 3 is inserted into the insulating tube 1, the positioning plate 13 slides along the side hole 33 to position the fixing base 3, thereby ensuring that the conductive terminal 2 can accurately enter the stepped hole 11.

[0028] As another embodiment of the present invention: the anti-retraction plate 31 is an arc-shaped plate. When the anti-retraction plate 31 abuts the stop surface 22, multiple anti-retraction plates 31 are evenly distributed on the outside of the conductive terminal 2. This structural design can better prevent the conductive terminal 2 from retreating.

[0029] In another embodiment of the present invention, the retaining plate 31 is tilted, with the front end of the retaining plate 31 close to the conductive terminal 2. The conductive terminal 2 has an inclined surface 23 on its stop surface 22 that matches the retaining plate 31. When the retaining plate 31 abuts the stop surface 22, the retaining plate 31 fits against the inclined surface 23. This structural design enables the retaining plate 31 to more stably prevent the conductive terminal 2 from retreating.

[0030] As another embodiment of the present invention: Figure 5 , an observation hole 24 is provided on the wall of the wiring slot 21. When the wire core 41 is inserted into the wiring slot 21, it can be observed through the observation hole 24 whether the wire core 41 is inserted into place. When the wire core 41 is inserted, the wiring slot 21 and the wire core 41 are pressed tightly by a tool.

[0031] As another embodiment of the present invention, the wire hole is filled with sealant, and the gap between the insulating tube 1 and the fixing seat 3 is filled with sealant. Of course, the wire hole and the gap between the insulating tube 1 and the fixing seat 3 can also be sealed by injection molding.

[0032] As another embodiment of the present invention: the stepped hole 11 includes, from front to back, a first through hole, a second through hole, and a third through hole. The second through hole is provided with a reducing hole at one end close to the third through hole, and the end with the larger diameter of the reducing hole is close to the third through hole. The conductive terminal 2 is provided with a convex ring 25 that matches the edge diameter hole. The design of the reducing hole facilitates guiding the conductive terminal 2 in the third through hole into the second through hole. The diameter of the first through hole is smaller than that of the second through hole, which can prevent the conductive terminal 2 from coming out of the front end of the insulating tube 1. The plug can be inserted into the conductive terminal 2 in the second through hole through the first through hole. When the fixing seat 3 is stuck in the insulating tube 1, the wiring slot 21 extends into the wire hole, and the retaining plate 31 extends into the third through hole.

[0033] As another embodiment of the present invention: the insulating cylinder 1 is provided with a plurality of weight-reducing grooves 14, and the weight-reducing grooves 14 are adjacent to the third through hole. This structural design can effectively reduce the use of profiles and help reduce costs.

[0034] In the present invention, the wire core 41 is inserted into the wiring slot 21 and then pressed and fixed. This structural design ensures the reliability of the connection between the wire core 41 and the conductive terminal 2. The design of the fixing seat 3, the retaining plate 31, the stop surface 22 and the stepped hole 11 facilitates the assembly of the conductive terminal 2 and the insulating barrel 1 and can effectively prevent the conductive terminal 2 from being pulled out. The detachable design of the conductive terminal 2 and the insulating barrel 1 facilitates the concealment of the fixed wiring slot 21 and wire core 41 within the insulating barrel 1, while improving the waterproof performance of the female connector and facilitating the reliable connection between the wire core 41 and the conductive terminal 2.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A crimping female connector, characterized in that: It includes an insulating cylinder, which is provided with a plurality of stepped holes for accommodating conductive terminals, the aperture of the front end of the stepped hole is smaller than the aperture of the rear end, the rear end of the insulating cylinder is inserted with a fixing seat, the fixing seat is clamped with the insulating cylinder, the rear end of the conductive terminal is provided with a wiring groove, the wiring groove is fixed with the wire core of the wiring harness, the front end of the fixing seat is provided with a stop plate, the conductive terminal is provided with a stop surface that cooperates with the stop plate, the fixing seat is provided with a wire hole for the wiring harness to pass through, and the wire hole is connected to the stepped hole.

2. The crimping female connector according to claim 1, wherein: A clamping hole is provided at the rear end of the insulating cylinder, a convex block matched with the clamping hole is fixed on the outer wall of the fixing seat, and a guiding surface is provided on the convex block.

3. The crimping female connector according to claim 2, wherein: The rear end of the insulating cylinder is covered with a protective cylinder.

4. The crimping female connector according to claim 3, wherein: A side hole is provided on the outer side of the fixing seat, and a positioning plate adapted to the side hole is provided at the rear end of the insulating cylinder.

5. The crimping female connector according to claim 1, wherein: The retaining plate is an arc-shaped plate, and a plurality of the retaining plates are evenly distributed on the outside of the conductive terminal.

6. The crimping female connector according to claim 5, wherein: The retaining plate is arranged obliquely, and the front end of the retaining plate is close to the conductive terminal. The conductive terminal is provided with an inclined surface at the stop surface that is adapted to the retaining plate.

7. The crimping female connector according to claim 1, wherein: An observation hole is provided on the groove wall of the wiring groove.

8. The crimping female connector according to claim 1, wherein: The stepped hole includes, from front to back, a first through hole, a second through hole and a third through hole. The second through hole is provided with a reducing hole at one end close to the third through hole. The end with a larger aperture of the reducing hole is close to the third through hole. The conductive terminal is provided with a convex ring adapted to the edge diameter hole.

9. The crimping female connector according to claim 8, wherein: The insulating cylinder is provided with a weight-reducing groove, and the weight-reducing groove is adjacent to the third through hole.

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