Plug connector

Abstract

The plug connector comprises a shell, the side end of the shell comprises an insertion opening communicated with an internal containing chamber, the side edge of the shell is provided with an assembling groove, a limiting arm located in the assembling groove and an extending part, the limiting arm extends from one side face in the assembling groove to the other side face in the assembling groove, and the limiting arm is connected to the other side face of the assembling groove in an extending mode through the extending part. The shell, the limiting arm and the extension part are integrated; when the cable is inserted into the accommodating chamber from the insertion port, the extension part guides the cable to be inserted so as to complete the assembly operation, and the situation that the cable which is not inserted in the forward direction is clamped in the accommodating chamber of the shell and consequently the assembly fails is avoided.

Description

Technical Field

[0001] The invention relates to a connector, in particular to a plug connector. Background Art

[0002] Generally, a Fakra (FAchKReis Automobil) style plug electrical connector for automobiles has a socket at the side end of the insulator for the cable to be inserted and connected. A plurality of suspended elastic arms are formed on the side of the insulator, and a hook extends from the free end of each elastic arm, which engages with the necking groove on the outside of the cable.

[0003] When the cable is inserted into the socket in an oblique direction instead of in the normal direction (not in the axial direction of the socket), the front end of the cable touches the elastic arm and causes it to deviate outward, causing the front end of the cable to hit the hook and the inner wall of the insulator, resulting in assembly failure. In addition, when the cable needs to be withdrawn from the insulator, the hook must be repeatedly moved with a tool to disengage it from the necking groove, and the cable can be withdrawn. Over time, the elastic arm is easily damaged and broken. Summary of the invention

[0004] The present invention provides a plug connector, aiming to solve the above technical problem.

[0005] An embodiment of the present invention provides a plug connector, including a shell, the shell having a chamber, the side end of the shell including an insertion port connected to the chamber, the side of the shell having an assembly groove, a limiting arm and an extension portion located in the assembly groove, the limiting arm extending from one side of the assembly groove toward the other side of the assembly groove, the limiting arm extending and connected to the other side of the assembly groove by the extension portion, and the shell, the limiting arm and the extension portion are integrated.

[0006] Preferably, the extension portion includes a hook and a guide wall, the hook protrudes toward the accommodation chamber, the guide wall extends from the side end of the hook to the other side of the assembly groove, and the thickness of the hook is greater than the thickness of the guide wall.

[0007] Preferably, the two sides of the hook respectively include a vertical surface and an inclined surface, the vertical surface and the inclined surface are located in the accommodation chamber, the inclined surface is adjacent to the limiting arm, and the vertical surface is far away from the limiting arm.

[0008] Preferably, the plug connector further comprises a locking member, which is locked in the assembly slot, and the locking member comprises a side arm and a supporting portion located inside the side arm, and the side arm is located in the accommodation chamber.

[0009] Preferably, the side arm has a hook portion, the housing has a first buckle portion and a second buckle portion located in the accommodation chamber, and the hook portion is selectively engaged with the first buckle portion or the second buckle portion.

[0010] Preferably, the plug connector further comprises a cable, which is inserted into the receiving chamber through the insertion port. The cable comprises an outer conductor and a tail sleeve sleeved on the outer conductor. The outer side of the tail sleeve has a necking groove, and the extension portion is locked in the necking groove.

[0011] Preferably, the limiting arm includes a plurality of protrusions, and the extending portion extends from one of the plurality of protrusions to the other side surface of the assembly groove.

[0012] Preferably, the side ends of the shell include multiple insertion ports connected to the accommodating chambers, the two side edges of the shell have assembly grooves, multiple limit arms and multiple extension portions located in each assembly groove, each limit arm extends from one side of each assembly groove toward the other side of each assembly groove, each limit arm is extended and connected to the other side of each assembly groove by each extension portion, the shell, each limit arm and each extension portion are integrated, and each extension portion is respectively located on the upper and lower sides of each assembly groove.

[0013] Preferably, the plug connector further comprises a plurality of cables, which are respectively inserted into each housing chamber through each insertion port, the cables comprising an outer conductor and a tail sleeve sleeved on the outer conductor, the outer side of the tail sleeve has a necking groove, and each extension portion is engaged in each necking groove.

[0014] Preferably, the plug connector further includes a plurality of locking parts, which are respectively snapped into each assembly groove, each locking part includes a side arm and a supporting part located on the inner side of the side arm, each side arm is located in the receiving chamber, and each supporting part and each extension part are respectively snapped into the upper and lower sides of the side of each necking groove.

[0015] Due to the adoption of the above technical solution, the present invention has the following beneficial effects: 1. The limit arm in the assembly groove of the shell is extended and connected to the side of the assembly groove by an extension part. The shell, the limit arm and the extension part are integrated. The extension part provides cable guidance and plugging to complete the assembly operation, avoiding the non-positive plugged cables from being stuck in the housing of the shell and causing assembly failure; because the limit arm is connected to the extension part, the overall strength is increased, so that the limit arm is not easy to break.

[0016] 2. The extension part is set at half the volume of the limit arm, so that the limit arm has some elasticity, so that the cable can be pushed when it contacts the limit arm, which is convenient for cable assembly.

[0017] 3. Use the locking piece to lock into the cable neck groove to enhance the positioning effect of the cable in the chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 To illustrate an exploded schematic diagram of a plug connector according to some embodiments; Figure 2 To illustrate the appearance of the housing and the cable before assembly according to some embodiments; Figure 3 To illustrate the appearance of the housing and the cable after assembly according to some embodiments; Figure 4 To illustrate the appearance of the housing and the locking member before assembly according to some embodiments; Figure 5To illustrate the appearance of the housing and the locking member after being assembled according to some embodiments; Figure 6 To illustrate the basis Figure 5 The side view of the AA lead in the middle is a schematic diagram showing the assembled state of the housing and the locking part; Figure 7 To illustrate a schematic diagram of the appearance of a housing from a front side perspective according to some embodiments; Figure 8 To illustrate a schematic diagram of the appearance of a housing from a rear side perspective according to some embodiments; Fig. 9A To illustrate a front view of a housing and a cable after assembly according to some embodiments; Fig. 9B A schematic top view showing the separation of the housing and the cable according to some embodiments; Fig. 9C To illustrate a top view of the housing and the cable during assembly according to some embodiments; Fig.9D To illustrate the basis Fig. 9A The side cross-sectional view of the middle BB lead shows the assembly status of the housing and cable; Fig.9E To illustrate the basis Fig.9D A magnified schematic diagram of the C lead coil selection; and Fig.10 A schematic diagram of the front side of a housing is shown according to some embodiments.

[0019] Explanation of symbols 100: plug connector, 1: housing, 10: containing chamber, 11: insertion port, 12: assembly slot, 12a: one side surface, 12b: the other side surface, 13: limiting arm, 131: protrusion, 14: extension portion, 15: hook, 151: vertical surface, 152: inclined surface, 16: guide wall, 181: first buckle portion, 182: second buckle portion, 2: locking member, 21: side arm, 211: hook portion, 22: abutting portion, 3: cable, 31: outer conductor, 32: tail sleeve, 321: necking groove. DETAILED DESCRIPTION

[0020] Reference Figure 1 , which is a schematic diagram of the exploded view of the plug connector 100; in some embodiments, the plug connector 100 and the socket connector are connected to each other for data transmission between various electronic devices (such as antenna modules or radar modules) on the car, and the connecting wires of each electronic device are electrically connected through the plug connector 100 and the socket connector; the plug connector 100 is used for a MINI FAKRA (FAchKReis Automobil) style coaxial cable.

[0021] Reference Figure 1 The plug connector 100 includes a housing 1, and the housing 1 is used for plugging in four cables 3. However, the housing 1 is not limited to this. The housing 1 can also be used for plugging in one, two, six, seven, etc. cables 3. The arrangement of the multiple cables 3 can be a single row or double row matrix arrangement.

[0022] Reference Figures 1 to 8 , Figure 2 This is a schematic diagram of the appearance of the housing 1 and the cable 3 before assembly. Figure 3 Schematic diagram of the appearance of the housing 1 and the cable 3 after assembly. Figure 4 This is a schematic diagram of the appearance of the housing 1 and the locking member 2 before assembly. Figure 5 is a schematic diagram of the appearance of the housing 1 and the locking member 2 after being assembled. Figure 6 for Figure 5 The side view of the AA lead is shown in the figure. Figure 7 This is a schematic diagram of the appearance of the housing 1 from the front side. Figure 8 1 is a schematic diagram of the appearance of the housing 1 from the rear side. The housing 1 has a chamber 10, and the side end of the housing 1 includes an insertion port 11 (such as Figure 8 As shown in the figure, the side of the housing 1 has an assembly groove 12, a limiting arm 13 and an extension portion 14 located in the assembly groove 12, the limiting arm 13 extends from one side surface 12a in the assembly groove 12 toward the other side surface 12b in the assembly groove 12, the limiting arm 13 is extended and connected to the other side surface 12b of the assembly groove 12 by the extension portion 14, and the housing 1, the limiting arm 13 and the extension portion 14 are integrated.

[0023] Reference Figure 1 , Figure 7 and Figure 8 In some embodiments, the plug connector 100 includes four cables 3, which are inserted into the housing 10 through four insertion ports 11, respectively. Each cable 3 includes an outer conductor 31 and a tail sleeve 32 sleeved on the outer conductor 31. The outer side of the tail sleeve 32 has a necking groove 321. Each extension portion 14 is locked in each necking groove 321 (such as Fig.9D ). The extension portion 14 is a curved structure; when the cable 3 is inserted into the receiving chamber 10, the extension portion 14 is correspondingly engaged with the surface of the circular necking groove 321.

[0024] Reference Figure 2 , 9A to 9C , Fig. 9A This is a front view schematic diagram after the housing 1 and the cable 3 are assembled. Fig. 9B It is a top view schematic diagram of the housing 1 and the cable 3 being separated. Fig. 9CIt is a top view schematic diagram of the process of assembling the housing 1 and the cable 3. In some embodiments, when the cable 3 is inserted into the housing 10 from the insertion port 11, the cable 3 will be assembled into the hollow housing 1, and the extension portion 14 of the housing 1 will be locked in the necking groove 321 of the cable 3; when the cable 3 is not inserted into the housing 10 in a forward direction (not in the axial direction of the insertion port 11), but inserted from the insertion port 11 in a direction inclined to the axial direction, the front end of the obliquely inserted cable 3 will contact the extension portion 14 and be guided into the interior of the housing 10 by the extension portion 14, so as to avoid the front end of the cable 3 colliding with the inner wall of the housing 10 and getting stuck, thereby ensuring that the cable 3 and the housing 1 are assembled.

[0025] In some embodiments, when the cable 3 needs to be removed from the chamber 10 for maintenance, the limiting arm 13 and the extension 14 are moved toward the outside of the housing 1 using a tool, so that the necking groove 321 of the cable 3 is disengaged from the latch of the extension 14, and the cable 3 is pulled out of the chamber 10. In some embodiments, when the cable 3 needs to be removed from the chamber 10 for replacement, the above-mentioned action is repeated to pull the cable 3 out of the chamber 10, and then the cable 3 with different wire diameters can be replaced and inserted into the chamber 10 for use.

[0026] Reference Figure 1 , FIG. 9D to FIG. 9E , Fig.9D for Fig. 9A The side cross-sectional view of the middle BB lead shows the assembly state of the housing 1 and the cable 3. Fig.9E for Fig.9D The enlarged schematic diagram of the middle C lead wire selection. In some embodiments, the extension portion 14 of the housing 1 includes a hook 15 and a guide wall 16, the hook 15 protrudes toward the chamber 10, and the guide wall 16 extends from the side end of the hook 15 to the other side 12b of the assembly slot 12, and the thickness of the hook 15 is greater than the thickness of the guide wall 16; when the cable 3 is inserted into the chamber 10, the hook 15 is locked in the necking groove 321, providing the effect of positioning the front end of the cable 3 in the chamber 10; when the cable 3 is to be withdrawn from the chamber 10 of the housing 1, a tool is used to move the limit arm 13 outward to disengage the hook 15 from the necking groove 321, and the cable 3 can be withdrawn; because the limit arm 13 is connected to the extension portion 14, the housing 1, the limit arm 13 and the extension portion 14 are integrated, which increases the overall strength, and the limit arm 13 pulled by the tool will not cause the root of the limit arm 13 to be damaged or broken.

[0027] Reference Figure 1 , FIG. 9D to FIG. 9EIn some embodiments, the two sides of the hook 15 include a vertical surface 151 and an inclined surface 152, respectively. The vertical surface 151 and the inclined surface 152 are located in the chamber 10, the inclined surface 152 is adjacent to the limiting arm 13, and the vertical surface 151 is away from the limiting arm 13; when the cable 3 is inserted into the chamber 10, the front end of the cable 3 first hits the inclined surface 152 to facilitate the guide, and the limiting arm 13 and the extension portion 14 are pushed by the cable 3 and move elastically; then, the cable 3 is continuously inserted into the chamber 10, and the hook 15 is locked in the necking groove 321, and the vertical surface 151 and the inclined surface 152 of the hook 15 are in contact with the necking groove 32 1 has a spacing, and this spacing facilitates the space for the cable 3 to move horizontally during the insertion of the cable 3 into the receiving chamber 10, so as to facilitate the assembly operation of the cable 3 and avoid the problem that the vertical surface 151 and the inclined surface 152 of the hook 15 are tightly matched with the necking groove 321 and are not easy to plug in; and this spacing does not affect the fixing effect of the cable 3 in the receiving chamber 10, that is, the two sides of the necking groove 321 are opposite to the vertical surface 151 and the inclined surface 152. When the cable 3 is pulled out of the receiving chamber 10, the side of the necking groove 321 will be stuck to the vertical surface 151 and be limited, so as to prevent the cable 3 from escaping from the receiving chamber 10.

[0028] Reference Figure 1 , Figure 6 In some embodiments, the plug connector 100 further includes two locking members 2, but the present invention is not limited thereto. In some embodiments, when the plug connector 100 is used for plugging a cable 3, the plug connector 100 may include a locking member 2 for use. Taking a locking member 2 as an example, the locking member 2 is snapped into the assembly groove 12. The locking member 2 includes a side arm 21 and a supporting portion 22 located on the inner side of the side arm 21. The supporting portion 22 is a curved structure. When the cable 3 is inserted into the receiving chamber 10, the locking member 2 is snapped into the assembly groove 12. The side arm 21 of the locking member 2 is located in the receiving chamber 10. The supporting portion 22 of the locking member 2 corresponds to the surface of the circular necking groove 321, thereby enhancing the positioning effect of the cable 3 in the receiving chamber 10.

[0029] Reference Figure 1 , Figure 6 In some embodiments, assembly grooves 12 are provided on two side surfaces of the housing 1, and the two assembly grooves 12 are respectively provided for two locking members 2 to be snapped in, but this is not limited to this; in some embodiments, an assembly groove 12 may be provided on one side of the housing 1 for one locking member 2 to be snapped in.

[0030] Reference Figures 1 to 6In some embodiments, assembly grooves 12 are provided on two side surfaces of the housing 1, and the two assembly grooves 12 are respectively provided for two locking members 2 to be locked, and the four abutting portions 22 and the four extending portions 14 on the two side arms 21 of each locking member 2 are respectively locked at the upper and lower sides of the sides of each necking groove 321 of the four cables 3. In some embodiments, the plug connector 100 further includes a plurality of locking members 2, which are respectively locked at each assembly groove 12 on two sides of the housing 1, each locking member 2 includes a side arm 21 and a abutting portion 22 located inside the side arm 21, each side arm 21 is located in the receiving chamber 10, each abutting portion 22 and each extending portion 14 are respectively locked at the upper and lower sides of the sides of each necking groove 321 to firmly position the front end of the cable 3 in the receiving chamber 10, and each locking member 2 has a partition block for locking between two cables 3. Among them, the supporting portion 22 can be clamped on the upper side of the side of the necking groove 321, and the extending portion 14 can be clamped on the lower side of the side of the necking groove 321, but it is not limited to this; in some embodiments, the supporting portion 22 is clamped on the lower side of the side of the necking groove 321, and the extending portion 14 is clamped on the upper side of the side of the necking groove 321.

[0031] Reference Figure 1 , Figure 7 and Figure 8 In some embodiments, the side end of the shell 1 includes four insertion ports 11 connected to the chamber 10, and the two sides of the shell 1 have assembly grooves 12, multiple limiting arms 13 and multiple extension portions 14 located in each assembly groove 12, each limiting arm 13 extends from one side surface 12a in each assembly groove 12 toward the other side surface 12b in each assembly groove 12, and each limiting arm 13 is extended and connected to the other side surface 12b of each assembly groove 12 by each extension portion 14. The shell 1, each limiting arm 13 and each extension portion 14 are integrated, and each extension portion 14 is respectively located on the upper and lower sides of each assembly groove 12.

[0032] Reference Figures 2 to 6 When assembling the cable 3 to the housing 1, the cable 3 is first inserted into the housing 10, and then the locking member 2 is assembled to strengthen the fixing of the cable 3, but the invention is not limited thereto; in some embodiments, the locking member 2 can be first assembled on the housing 1, and then the cable 3 is inserted into the housing 10; refer to Figure 1 , Figure 6 In some embodiments, the side arm 21 of the locking member 2 has a hook portion 211, and the housing 1 has a first buckle portion 181 and a second buckle portion 182 located in the chamber 10, and the hook portion 211 selectively engages with the first buckle portion 181 or the second buckle portion 182; when the hook portion 211 of the side arm 21 engages with the first buckle portion 181, the locking member 2 is pre-positioned on the housing 1 to facilitate assembly operations; then, after the cable 3 is inserted into the chamber 10, the locking member 2 is pushed again to engage the hook portion 211 with the second buckle portion 182, so that the abutting portion 22 of the locking member 2 abuts against the necking groove 321 of the cable 3 to provide a positioning effect.

[0033] Reference Figure 1 , Fig.10 The side assembly slot 12 of the housing 1 includes two upper and lower side-by-side limit arms 13, each limit arm 13 includes two protrusions 131, but the present invention is not limited thereto. In some embodiments, the side assembly slot 12 of the housing 1 may include a limit arm 13, and the limit arm 13 includes a protrusion 131.

[0034] Reference Figure 1 , Fig.10 , Fig.10 1 is a schematic diagram of the front side of the housing 1. In some embodiments, the limiting arm 13 includes a plurality of protrusions 131, and the extension 14 extends from one of the plurality of protrusions 131 to the other side 12b of the assembly slot 12. The extension 14 is a portion where one of the plurality of protrusions 131 is provided, and not all protrusions 131 are provided with the extension 14. If all of the plurality of protrusions 131 have the extension 14, the overall strength of the plurality of protrusions 131 and the plurality of extensions 14 is high, so that the cable 3 contacts the plurality of extensions 14 with high strength and cannot be pushed, resulting in the cable 3 being unable to be assembled; therefore, the extension 14 is a portion where one of the plurality of protrusions 131 is provided, and not all of the plurality of protrusions 131 are provided with the extension 14, which has the effect of reducing the volume of the extension 14 by half, allowing the limiting arm 13 to retain some elasticity, so that the cable 3 can be pushed by contacting the limiting arm 13, facilitating the assembly of the cable 3.

[0035] In summary, according to some embodiments, the limit arm in the assembly groove of the shell is extended and connected to the side of the assembly groove by an extension part. The shell, the limit arm and the extension part are integrated. The extension part provides a cable guide to complete the assembly operation to avoid the non-positively plugged cable being stuck in the housing of the shell and causing assembly failure; because the limit arm is connected to the extension part, the overall strength is increased, making the limit arm less likely to break. According to some embodiments, the extension part is set in half the volume of the limit arm, allowing the limit arm to retain some elasticity, so that the cable can be pushed by contacting the limit arm, which is convenient for cable assembly. According to some embodiments, a locking member is engaged in the necking groove of the cable to enhance the positioning effect of the cable in the housing.

Claims

1. A plug connector, characterized in that : A shell has a chamber, the side end of the shell includes an insertion port connected to the chamber, the side of the shell has an assembly groove, a limit arm located in the assembly groove and an extension portion, the limit arm extends from one side of the assembly groove to the other side of the assembly groove, the limit arm is extended and connected to the other side of the assembly groove through the extension portion, and the shell, the limit arm and the extension portion are integrated.

2. The plug connector according to claim 1, characterized in that The extension portion includes a hook and a guide wall, wherein the hook protrudes toward the receiving chamber, and the guide wall extends from the side end of the hook to the other side of the assembly groove, and the thickness of the hook is greater than the thickness of the guide wall.

3. The plug connector according to claim 2, characterized in that The two sides of the hook respectively include a vertical surface and an inclined surface, the vertical surface and the inclined surface are located in the receiving chamber, the inclined surface is adjacent to the limiting arm, and the vertical surface is far away from the limiting arm.

4. The plug connector according to claim 1, characterized in that : It also includes a locking piece that is snapped into the assembly slot, and the locking piece includes a side arm and a supporting portion located on the inner side of the side arm, and the side arm is located in the receiving chamber.

5. The plug connector according to claim 4, characterized in that The side arm has a hook portion, and the shell has a first buckle portion and a second buckle portion located in the receiving chamber, and the hook portion is selectively engaged with the first buckle portion or the second buckle portion.

6. The plug connector according to claim 1, characterized in that : It also includes a cable, which is inserted into the housing through the insertion port. The cable includes an outer conductor and a tail sleeve sleeved on the outer conductor. The outer side of the tail sleeve has a necking groove, and the extension portion is locked in the necking groove.

7. The plug connector according to claim 1, characterized in that The limiting arm includes a plurality of protrusions, and the extending portion extends from one of the protrusions to the other side of the assembly groove.

8. The plug connector according to claim 1, characterized in that : The side end of the shell includes a plurality of insertion ports connected to the containing chamber, and the two side edges of the shell respectively have an assembly groove, a plurality of limit arms and a plurality of extension portions located in each of the assembly grooves, each of the limit arms respectively extends from one side of each of the assembly grooves toward the other side of each of the assembly grooves, and each of the limit arms is respectively extended and connected to the other side of each of the assembly grooves by each of the extension portions, the shell, each of the limit arms and each of the extension portions are integrated, and each of the extension portions is respectively located on the upper and lower sides of each of the assembly grooves.

9. The plug connector according to claim 8, characterized in that : It further includes a plurality of cables, which are respectively inserted into each of the said chambers through each of the said insertion ports, the said cables include an outer conductor and a tail sleeve sleeved on the said outer conductor, the outer side of the said tail sleeve has a necking groove, and each of the said extension parts is clamped in each of the said necking grooves.

10. The plug connector according to claim 8, characterized in that : It further includes a plurality of locking parts, which are respectively snapped into each of the assembly grooves, each of the locking parts includes a side arm and a supporting portion located on the inner side of the side arm, each of the side arms is located in the receiving chamber, and each of the supporting portions and each of the extending portions are respectively snapped into the upper and lower sides of the side of each of the necking grooves.

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