CN200969409Y - Coaxial cable connector - Google Patents

Abstract

A coaxial cable connector comprises: a connecting terminal electrically connected to the inner conductor of a coaxial cable, an insulating component accommodating the connecting terminal and a metal shell, wherein the connecting terminal has a conducting portion, a fixing portion extending upward from one end of the conducting portion and a coupling member extending downward from the conducting portion, the fixing portion having a fixing groove extending longitudinally to the conducting portion, suitable for clamping the inner conductor to be electrically connected to the conducting portion, so as to achieve a better electrical connection effect and a more effective positioning effect of the coaxial cable.

Description

coaxial cable connector

【Technical field】

The utility model relates to a connector, in particular to a coaxial cable connector used for connecting coaxial cables.

【Background technique】

Coaxial cables are often used for data transmission and have a wide range of applications, such as radio, cable TV, and so on. The previous coaxial cable was electrically connected to the conductor of another cable by soldering the internal conductor in the coaxial cable to the conductor of the other cable. However, due to the complicated welding process and high precision requirements, poor conduction is likely to occur. Therefore, currently coaxial cables often utilize coaxial cable connectors to electrically connect conductors of another cable.

US Patent No. 6,790,082 discloses a coaxial cable connector 9 . As shown in Fig. 1 and Fig. 2, this coaxial cable connector 9 has a connecting terminal 91 for guiding the inner conductor 81 of the coaxial cable 8, an insulating member 92 for supporting the connecting terminal 91 and an insulating The metal shell 93 outside the member 92. When conducting the coaxial cable 8, first place the coaxial cable 8 between the two dogleg shape conductors 911, 912 of the connection terminal 91 along the direction of the arrow I. Then, the bent portion 931 of the metal shell 93 and the bent portion 921 of the insulating member 92 are bent toward the main body 932 of the metal shell 93 and the main body 922 of the insulating member 92 until they are covered, and at this moment the connecting terminal 91 The two conductors 911, 912 are deformed and pinch the inner conductor 81 therein. Finally, the multiple pairs of engaging tongues 933 , 934 , 935 of the metal shell 93 are respectively bonded to the main body 932 of the metal shell 93 and the coaxial cable 8 . In this way, US Pat. No. 6,790,082 uses the bending force of the insulating member 92 and the metal shell 93 to force the connecting terminal 91 to bend to hold the inner conductor 81 to complete the electrical connection between the connecting terminal 91 and the inner conductor 81 .

In actual use, the coaxial cable 8 may be bent to any angle, and may even be pulled. However, U.S. Patent No. 6,790,082 bends the two conductors 911 and 912 in the connection terminal 91 to crimp the inner conductor 81 of the coaxial cable 8 up and down, so it can only limit the longitudinal displacement of the inner conductor 81, and it is difficult to limit the inner conductor 81. The lateral displacement and the forward and backward displacement along the direction of the arrow I or the opposite arrow I make the electrical connection between the connecting terminal 91 and the internal conductor 81 unstable during use, and even the internal conductor 81 may be detached.

【Content of utility model】

The purpose of the utility model is to provide a coaxial cable connector with better electrical connection effect and more effective positioning of the coaxial cable.

In order to solve the problem of positioning the inner conductor of the coaxial cable by crimping up and down in the existing connecting terminal, the utility model provides a coaxial cable connector, which changes the connecting terminal into a longitudinal groove to clamp the inner part of the coaxial cable The conductor is connected to the connection terminal to effectively limit the lateral displacement and longitudinal displacement of the inner conductor of the coaxial cable, thereby achieving a more stable electrical connection.

The coaxial cable connector of the present invention comprises: a connecting terminal, an insulating member accommodating the connecting terminal and a metal shell covering the insulating member; An upwardly extending fixing portion from one end of the leading portion and a joint piece extending downward from the leading portion, the fixing portion contains a fixing groove extending longitudinally to the leading portion, suitable for clamping an inner conductor of a coaxial cable It is electrically connected with the conducting part, and the metal shell exposes the connecting part of the connecting terminal.

The coaxial cable connector is characterized in that: the fixing portion of the connection terminal includes two fixing blocks extending upward from the guiding portion at intervals, so as to form the fixing groove between the fixing blocks.

Said coaxial cable connector is characterized in that: the connection terminal also has an anti-disengagement arm extending from the other end of the guide part along a direction obliquely upward and facing the guide part, and the anti-disconnection arm The length is greater than the length of the leading portion.

Said coaxial cable connector is characterized in that: the connecting part of the connecting terminal is a pair of curved tongues extending downward from both sides of the guiding part.

The coaxial cable connector is characterized in that: the insulating member has an insulating body for accommodating the connecting terminal and a cable protection part, and the insulating body contains a joint piece for accommodating the connecting terminal. The base and an accommodating groove located on the base and accommodating the leading part of the connecting terminal, and the cable protection part covers the accommodating groove.

To sum up, in the coaxial cable connector of the present invention, the connecting terminal is changed to a fixing part provided with a fixing groove extending longitudinally to clamp the inner conductor of the coaxial cable and connect it with the lead part, so as to effectively limit the inner conductor from being connected to the lead part. Longitudinal and lateral displacement on the connecting part, in order to achieve more effective positioning of the coaxial cable and better effect of electrical connection.

【Description of drawings】

Fig. 1 is a schematic diagram of the assembly process of the coaxial cable connector in the US No. 6,790,082;

Fig. 2 is a schematic diagram of the assembled coaxial cable connector of Fig. 1;

Fig. 3 is an exploded view of a preferred embodiment of the utility model coaxial cable connector;

Fig. 4 is the bottom view of the insulating member in the embodiment of Fig. 3;

Fig. 5 is a schematic diagram of the assembly process in the embodiment of Fig. 3, at this moment, the connecting terminal has been plugged into the insulating member and the insulating member has been plugged into the metal shell;

Fig. 6 is the sectional view of Fig. 5;

Fig. 7 is a schematic diagram of the assembly process of the embodiment of Fig. 3, at this moment, the coaxial cable leads the connecting terminal;

Fig. 8 is a schematic diagram of the assembly process of the embodiment of Fig. 3, at this moment, the bent portion of the metal shell has been bent;

Figure 9 is a schematic view of the completed assembly of the embodiment of Figure 3; and

FIG. 10 is a cross-sectional view of another implementation of the metal shell in the embodiment in FIG. 3 .

【Detailed ways】

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail:

As shown in FIG. 3 , a preferred embodiment of the coaxial cable connector 1 of the present invention includes a connecting terminal 2 , an insulating member 3 and a metal shell 4 . The coaxial cable electrical connector 1 is used for conducting a coaxial cable 5, and the coaxial cable 5 has an internal conductor (internal conductor) 51, an insulator 52 covering the internal conductor 51, and an external conductor (internal conductor) covering the insulator ( external conductor) 53 and a casing 54 that covers the external conductor 53 and is an insulating material.

The connecting terminal 2 is used for conducting the inner conductor 51 of the coaxial cable 5 and has a conducting portion 21 , a detachment arm 22 , a fixing portion 23 and a joint member 24 .

The conducting portion 21 is a rectangular piece and is used to form an electrical connection with the inner conductor 51 . The fixing part 23 is two fixing blocks 230 spaced apart from each other and extending upward from the front end of the connecting part 21 , so that a longitudinal fixing groove 231 is formed between the two fixing blocks 230 to clamp the inner conductor 51 . The inner side 2301 opposite to the other of the two fixing blocks 230 symmetrically extends upward for a certain distance, then turns and tilts away from the fixing groove 231 and continues to extend upward, so that the upper half of the fixing groove 231 is funnel-shaped to guide the inner conductor 51 enters the lower half of the fixing groove 231 and is electrically connected with the conducting portion 21 . Moreover, the width of the upper half of the fixing groove 231 is greater than that of the lower half, and the width of the upper half is greater than the outer diameter of the inner conductor 51 while the width of the lower half is not greater than the outer diameter of the inner conductor 51 .

The anti-off arm 22 extends obliquely upward and forward from the rear end of the guiding portion 21 , so that the anti-off arm 22 and the guiding portion 21 face each other. The length of the anti-off arm 22 is greater than the length of the guide part 21, so that when the anti-off arm 22 approaches the guide part 21, the free end of the anti-off arm 22 abuts against the fixed part 23 without contacting the guide part 21 ( As shown in Figure 8). The surface facing the guide part 21 in the anti-off arm 22 is further concavely provided with a groove 221 extending from the free end of the anti-off arm 22 to the guide part 21 at the position corresponding to the fixing groove 231, so that the anti-off arm 22 has a The cross-section of the middle bulge. The anti-disengagement arm 22 confines the inner conductor 51 below the groove 221 to prevent it from being electrically connected when the coaxial cable connector 1 is completed. The engagement member 24 is a pair of tongues extending downward from the left and right sides of the guiding portion 21 , and the two tongues are more symmetrically bent inward to hold a contact end (not shown) of a socket therein.

Referring to FIG. 3 and FIG. 4 , the insulating member 3 has an insulating body 31 for accommodating the connecting terminal 2 and a cable protection portion 32 . The insulating body 31 has a cylindrical base 311 , and a rectangular slot 3111 penetrating from top to bottom is formed in the base 311 for accommodating the joint member 24 . A groove is further formed around the end of the outer peripheral wall of the base 311 . The upper surface of the base 311 further forms a pair of lateral walls 312 protruding from the outer peripheral wall of the base 311 to jointly define an accommodating groove 313 for accommodating the lead portion 21 of the connecting terminal 2, and one end of the accommodating groove 313 further has a Stepped opening 314 . The cable protection portion 32 is a strip-shaped sheet extending vertically upward from the other end of the accommodating groove 313 opposite to the stepped opening 314 between the two lateral walls 312 . The width of the cable protection part 32 is smaller than the width of the receiving groove 313 and is elastic and can be applied to cover the receiving groove 313 .

As shown in FIG. 3 , the metal shell 4 has a metal body 41 fitted outside the insulating body 31 and a bent portion 42 extending upward from the metal body 41 . The metal body 41 has a cylindrical seat 411 with openings up and down. There is an opening 412 on the circumferential wall of the upper part of the cylindrical seat 411, and a pair of clamping arms 413 extend forward on both sides of the opening 412. The end of the arm 413 is more bent and extends backward to provide sufficient clamping force for the insulator 52 of the coaxial cable 5 . The inner diameter of the cylindrical seat 411 is greater than the outer diameter of the base 311 and a groove is also provided at the corresponding groove position of the base 311, as shown in Figure 6, there is a gap between the cylindrical seat 411 and the base 311, so that the socket (not shown in the figure) (shown) can be firmly locked in the gap between the cylinder seat 411 and the base 311.

Again, as shown in Fig. 3 and Fig. 4, on the peripheral wall of the lower half of the cylindrical seat 411, a plurality of slots 414 spaced apart from each other and extending upward from the lower end of the cylindrical seat 411 are provided, so that the cylindrical seat 411 is aligned with the outer diameter. When the larger socket is plugged in, it can be expanded and plugged in smoothly. In order to allow the insulating body 31 to be stably positioned in the metal body 41, the outer wall surface of the lateral wall 312 of the insulating body 31 is more concavely provided with a first locking groove 315 and the corresponding position of the inner wall surface of the upper half of the cylindrical seat 411 is more convexly provided. Two first clamping blocks 415, and two second slots 321 extending upwardly at intervals are recessed at the bottom end of the cable protection part 32, and two second slots 321 are more protrudingly provided on the inner wall surface of the upper half of the cylindrical seat 411 at corresponding positions. block 416, and the thickness of the first block 415 gradually increases from top to bottom, while the thickness of the second block 416 gradually decreases from top to bottom, so that when the insulating member 3 is placed in the metal body 41, the insulating body The base 311 of 31 penetrates into the cylindrical seat 411 , and then the insulating body 31 is fixed in the metal body 41 by the mutual interference between the clamping blocks 415 , 416 and the slots 315 , 321 .

A pair of first tongue pieces 421 , a pair of second tongue pieces 422 , a pair of third tongue pieces 423 and a material strip 420 are arranged at intervals from bottom to top on both sides of the bending portion 42 of the metal shell 4 . Wherein, the first tongue piece 421 is used to wrap around the clamping arm 413 , the second tongue piece 422 is used to wrap around the outer conductor 53 and the third tongue piece 423 is used to wrap around the housing 54 . There is a gap between the second tongue piece 422 and the third tongue piece 423, so that when the third tongue piece 422 is wrapped around the shell 54 of the coaxial cable 5, the deflection (buckle) produced by the shell 54 that is squeezed and deformed can be used. The interval between the second tongue piece 422 and the third tongue piece 423 is extended. A horizontal elongated block 424 is protruded from the surface of the bending portion 42 facing the cable protection portion 32 to increase the structural strength of the bending portion 42 and press the cable protection portion 32 . In order to increase the clamping force of the bending part 41 on the coaxial cable 5, the second tongue piece 422, the third tongue piece 423 and the surface of the bending part 42 facing the coaxial cable 5 are more protrudingly provided with a plurality of protrusions 425, To press against the coaxial cable 5.

As shown in Fig. 3, Fig. 5 and Fig. 6, when assembling, first insert the connecting terminal 2 into the insulating body 31 of the insulating member 3, so that the connecting portion 21 and the joint part 24 of the connecting terminal 2 are respectively accommodated in the housing of the insulating member 3. The slot 313 and the rectangular slot 3111 are placed, and the fixing slot 231 of the connecting terminal 2 is aligned with the stepped opening 314 of the accommodating slot 313 of the insulating member 3 .

Then, insert the insulating member 3 of the assembled connection terminal 2 into the metal body 41 of the metal shell 4, so that the insulating body 31 of the insulating member 3 is coaxially sleeved in the metal body 41, and the insulating member 3 accommodates the groove 313 The stepped opening 314 is aligned with the opening 412 on the upper half of the cylindrical seat 411 . At this moment, the insulating body 31 is fixed in the metal body 41 by mutual interference between the locking blocks 415 , 416 of the metal shell 4 and the locking grooves 315 , 321 of the insulating member 3 .

Then, as shown in FIG. 7 , assemble the coaxial cable 5 whose ends expose the outer conductor 53 , the insulator 52 and the inner conductor 51 sequentially into the coaxial cable connector 1 so that the inner conductor 51 is positioned in the fixing groove 231 and the leading part 21 is adjacent to the position and connected with the conducting portion 21 , and the insulator 52 is clamped by the clamping arm 413 .

Thereafter, a force is applied to bend the bending portion 42 of the metal shell 4 toward the metal body 41 in the direction of arrow II, as shown in FIG. 8 , the elongated block 424 in the bending portion 42 is pressed against the insulating member by the bending force. The cable protection part 32 of 3 is bent to cover the anti-drop arm 22 of the connection terminal 2. At this moment, the first tongue piece 421 is located outside the clamping arm 414, and the second tongue piece 422 is located on the outer conductor 53 of the coaxial cable 5. And the third tongue 423 is located on the shell 54 of the coaxial cable 5 .

Finally, as shown in Figure 9, use tools to make the coaxial cable 5 move toward the bending part 42 along the arrow III and use crimping (crimping) to bend the first, second and third tongues 421, 422, 423, so that the first A tongue 421 is wound on the clamping arm 413 , a second tongue 422 is wound on the outer conductor 53 of the coaxial cable 5 , and a third tongue 423 is wound on the outer shell 54 of the coaxial cable 5 , and then the tape 420 is removed. In this way, the positional relationship between the coaxial cable 5 and the coaxial cable connector 1 can be strengthened by using the tongues 421 , 422 , 423 , the protrusion 425 and the clamping arm 413 and effectively prevent the coaxial cable 5 from loosening.

It should be particularly noted that, as shown in Figure 9, when the anti-off arm 22 of the connection terminal 2 is pressed by the bending portion 42 and the cable protection portion 32 and approaches the guide portion 21, the free end of the anti-off arm 22 will abut against the fixed The portion 23 is opposite to the conducting portion 21 at a distance, and the inner conductor 51 does not contact the anti-off arm 22 due to the arrangement of the groove 221 on the anti-off arm 22 . Therefore, different from the previous up and down crimping, in this embodiment the inner conductor 51 is clamped by the fixing groove 231 and contacts with the conducting portion 21 to complete the electrical connection with the connection terminal 2 . In this way, the internal conductor 51 is clamped by the fixing groove 231 , not only the longitudinal displacement of the internal conductor 51 can be limited, but also the lateral displacement of the internal conductor 51 can be limited to achieve better positioning and electrical connection of the internal conductor 51 . In addition, due to the disposition of the anti-off arm 22 , when the internal conductor 51 breaks away from the clamping of the two fixing slots 231 due to improper use in the future, the anti-off arm 22 can be used to restrict the inner conductor 51 in the fixing slot 231 .

In addition, the position of the bent portion 42 of the metal shell 4 can be adjusted according to the needs. As shown in FIG. The angle between the metal body 41' and the metal body 41' is less than 90 degrees, and is not limited to what is disclosed in this embodiment.

According to the foregoing, the connection terminal 2 of the coaxial cable connector 1 of the present utility model clamps the inner conductor 51 of the coaxial cable 5 with the fixing groove 231 of the fixing part 23 to provide longitudinal and transverse clamping forces, thereby effectively The position of the inner conductor 51 on the connecting terminal 2 is maintained. Furthermore, the mutual interference force between the wall surface of the fixing groove 231 (referring to the inner sides 2301 of the two fixing blocks 230) and the internal conductor 51 can also increase the limiting force of the internal conductor 51 to move back and forth, and the metal shell 4 can also be utilized. Tongues 421, 422, 423, bumps 425 and clamping arms 413 strengthen and position the positional relationship between the coaxial cable 5 and the coaxial cable connector 1, so as to effectively prevent the coaxial cable 5 from loosening and reduce the occurrence of poor conduction probability.

Claims (11)

1, a kind of coaxial cable connector comprises: a splicing ear, in order to the insulating component of ccontaining this splicing ear and in order to coat the outer metal shell of this insulating component; It is characterized in that:

This splicing ear has a junction, a upwardly extending fixed part of an end and the fastener by the downward extension of this junction by this junction, this fixed part contains a holddown groove that extends longitudinally to junction, the inner conductor of this holddown groove clamping one coaxial cable is electrically connected with this junction, and this metal shell exposes the fastener of this splicing ear.

2, coaxial cable connector as claimed in claim 1 is characterized in that: the fixed part of this splicing ear contains two from this upwardly extending fixed block in junction interval, forms this holddown groove between described fixed block.

3, coaxial cable connector as claimed in claim 1 is characterized in that: this splicing ear also have one from this junction other end along one obliquely and the anticreep arm that extends in the face of the direction of this junction, the length of this anticreep arm is greater than the length of this junction.

4, coaxial cable connector as claimed in claim 3 is characterized in that: in the anticreep arm of this splicing ear one in the face of the surface of this junction in to should the holddown groove position also being provided with a groove that extends along the bearing of trend of this anticreep arm.

5, coaxial cable connector as claimed in claim 1 is characterized in that: the fastener of this splicing ear is a pair of crooked tongue piece that extends downwards from the both sides of this junction.

6, coaxial cable connector as claimed in claim 1; it is characterized in that: this insulating component has an insulating body and a cable protection portion for ccontaining this splicing ear; the base and one of fastener in it that this insulating body contains ccontaining this splicing ear is positioned on this base and the storage tank of the junction of ccontaining this splicing ear, and this cable protection portion is covered on this storage tank.

7, coaxial cable connector as claimed in claim 6 is characterized in that: also contain two upwardly extending lateral sidewalls at interval on the base of this insulating body, defining this storage tank jointly, and this cable protection portion is an end that connects this storage tank.

8, coaxial cable connector as claimed in claim 7; it is characterized in that: the base of this insulating body is a cylindric base, and this metal shell has one and is sleeved on the outer metal body of this insulating body and and connects this metal body and be covered in kink on this cable protection portion and this coaxial cable.

9, coaxial cable connector as claimed in claim 8 is characterized in that: the both sides of the kink of this metal shell are extended a pair of a pair of second tongue piece and a pair of the 3rd tongue piece that is wound in first tongue piece of metal shell and is wound in this coaxial cable respectively downwards.

10, coaxial cable connector as claimed in claim 8 is characterized in that: the kink of this metal shell also is convexly equipped with a block that compresses this cable protection portion in the face of the position of this cable protection portion.

11, coaxial cable connector as claimed in claim 9 is characterized in that: this kink also convexes with a plurality of projections that compress this coaxial cable.

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