Wire clamp and power socket

Abstract

A cable clamp is used for fixing a cable in a welding hole of a printed circuit board in advance, and the cable comprises a cable core and an outer wrapping layer wrapping the cable core. The base body is formed by extending in the vertical direction, the first clamping part and the second clamping part are formed on the two transverse sides of the base body in the vertical direction, the wrapping layer clamping part is formed by bending from the upper end of the base body, and the wrapping layer clamping part clamps the outer wrapping layer of the cable. The wire core is fixed in the first clamping part and / or the second clamping part in a riveting mode, the wire clamp drives the wire core to be inserted into the welding hole from the upper portion, the first clamping part abuts against the lower surface of the printed circuit board after being inserted, and the second clamping part abuts against the upper surface of the printed circuit board. The invention further discloses a power socket.

Description

Technical Field

[0001] The present application relates to the field of electrical connectors, and in particular to a wire clamp and a power socket. Background Art

[0002] The patent application with application number 202222876113.0 discloses a power socket, which includes a base provided with a partition, a pin (i.e., a conductive terminal) integrally formed or inserted into the partition, a Z-shaped terminal connected to the tail of the pin, and a rivet connection plate and a ground connection plate riveted to the lateral sides of the base. As can be seen from the drawings of the patent, the pin includes a docking portion docking with a docking plug, a fixed portion fixed in the partition, and a tail connected to the Z-shaped terminal, and the fixed portion is assembled or integrally formed on the partition in a circular structure. The Z-shaped terminal includes a hole sleeved on the tail, and the Z-shaped terminal is then welded to the pin by spot welding. The Z-shaped terminal disclosed in the patent is welded to a printed circuit board through a welding foot, but in some applications, the Z-shaped terminal can be used to connect a cable, and then welded to a printed circuit board through the cable.

[0003] When the torque between the fixing part of the above-mentioned plug pin and the partition is too large, the plug pin may rotate relative to the socket on the partition, which poses a safety risk and requires the improvement of the plug pin's anti-torsion ability; and the connecting piece is fixed to the plug pin by spot welding, which has the problems of high cost and low manufacturing efficiency. The cable is generally welded by inserting the wire core into the welding hole of the printed circuit board after stripping the wire sheath. Before automated wave soldering, the wire core of the cable is inserted into the welding hole in the printed circuit board by a robot, and then goes through the flux spraying area, multiple preheating, thermal compensation, wave soldering and other links. Because the cable end is lighter, it will be affected by the spraying force, the heat wave of temperature rise and the transmission vibration force when passing through the above process, which can easily cause the wire core to detach or shift, resulting in problems such as wire core desoldering, lack of solder or poor soldering. Summary of the invention

[0004] In view of this, it is necessary to provide a wire clamp and a power socket that can effectively prevent the wire core from falling off during welding.

[0005] In order to solve the above technical problems, the present application provides a wire clamp for pre-fixing a cable in a welding hole of a printed circuit board, wherein the cable includes a wire core and an outer sheath wrapping the wire core, the wire clamp includes a base extending in a vertical direction, a first clamping portion and a second clamping portion formed on both lateral sides of the base in a vertical direction, and a sheath clamping portion bent from the upper end of the base, the sheath clamping portion clamps the outer sheath of the cable, the wire core is riveted and fixed in the first clamping portion and / or the second clamping portion, the wire clamp drives the wire core to be inserted into the welding hole from above, and after insertion, the first clamping portion abuts against the lower surface of the printed circuit board, and the second clamping portion abuts against the upper surface of the printed circuit board.

[0006] Preferably, the first clamping portion includes a first core wire clamp formed by bending from both lateral sides of the base body and used for riveting the wire core, and a lower clamping portion formed by extending obliquely outward and upward from the upper side of the first core wire clamp; the second clamping portion is located above the first clamping portion, and the second clamping portion includes a second core wire clamp formed by bending from both lateral sides of the base body and used for riveting the wire core, and an upper clamping portion formed by bending from the second core wire clamp along the lateral outer side.

[0007] Preferably, the second clamping portion is located above the first clamping portion, and the second clamping portion includes a second core wire clamp formed by bending from both lateral sides of the base and riveting the wire core, and an upper clamping portion formed by bending from the second core wire clamp along the lateral outer side; the first clamping portion includes a lower clamping portion formed by extending downward from the bottom of the second core wire clamp and then tearing and extending obliquely outward and upward.

[0008] Preferably, the wire clamp drives the wire core of the cable clamped thereon to be inserted into the welding hole of the printed circuit board, and the lower clamping portion pops outward after passing through the welding hole and abuts against the lower surface of the printed circuit board, and the upper clamping portion abuts against the upper surface of the printed circuit board in a horizontal state.

[0009] Preferably, the base includes a first base, a second base formed by bending and extending obliquely upward from the top of the first base to one side of the second clamping portion, and a third base formed by extending vertically upward from the top of the second base, the first clamping portion and the second clamping portion are respectively bent and extended from the lateral sides of the upper and lower ends of the first base, and the cladding clamping portion is formed by bending from the lateral outer side of the third base.

[0010] In order to solve the above-mentioned technical problems, the present application also provides a power socket, including the aforementioned wire clamp for clamping the cable, an insulating body fixed on the printed circuit board, a conductive terminal integrally formed in the insulating body and a connecting piece riveted on the conductive terminal, the other end of the cable is riveted to the connecting piece, the insulating body includes a base, an insertion portion extending forward from the base, a front cavity formed in the insertion portion, a rear cavity formed in the base and a partition separating the front cavity and the rear cavity, the conductive terminal is integrally formed on the partition, the conductive terminal includes a wrapped portion fixed in the partition, a mating portion extending from the wrapped portion to the front cavity and a riveted tail portion extending from the wrapped portion to the rear cavity, the connecting piece includes a sheet body sleeved on the riveted tail portion and a cable connecting portion riveted to the cable formed by bending from the sheet body.

[0011] Preferably, the riveted tail is cut to form a sheet structure, and preferably the riveted tail is divided into four parts by a cross-shaped groove; the wrapped part includes a front fixing convex ring, a rear fixing convex ring and a filling space between the front fixing convex ring and the rear fixing convex ring protruding on the front and rear sides, the outer diameters of the front fixing convex ring and the rear fixing convex ring are larger than the outer diameter of the plug-in part of the conductive terminal, and the rear end face of the rear fixing convex ring is exposed in the rear cavity.

[0012] Preferably, the sheet body is provided with a through hole which is sleeved outside the riveted tail, and the sheet body is sleeved on the riveted tail through the through hole, and the groove of the riveted tail is squeezed by a rivet head to expand the four parts of the riveted tail radially outward to make the sheet body close to the rear end face of the rear fixing convex ring, and the sheet body is conductive with the rear end face of the rear fixing convex ring.

[0013] Preferably, the partition is located on one side of the rear cavity and is provided with a sheet accommodating groove for accommodating the sheet, and the sheet accommodating groove has protrusions around it to form limiting protrusions around the sheet, and an avoidance groove is also formed above the sheet accommodating groove to avoid the cable connecting part.

[0014] Preferably, the distance between the front end face of the front fixing convex ring and the rear end face of the rear fixing convex ring is consistent with the thickness of the partition, and the front end face of the front fixing convex ring is exposed in the front cavity, and the filling space is filled with the plastic of the partition and clamped by the front fixing convex ring and the rear fixing convex ring.

[0015] Preferably, a tooth structure is provided on the outer peripheral surface of the front fixing convex ring and / or the rear fixing convex ring, and the tooth structure is wrapped by the plastic of the partition.

[0016] Preferably, a fixing seat is fixed on the printed circuit board, and the insulating body is fixed on the printed circuit board through the fixing seat. The fixing seat includes a shell and a accommodating cavity longitudinally penetrating the shell, and the shell includes a front end and a rear end. The accommodating cavity is opened in the front end, and the upper side of the rear end is open. The insertion portion of the insulating body is inserted forward into the accommodating cavity, and the base is supported on the upper side of the rear end.

[0017] The wire clamp of the present application fixes the cable by riveting, and then pre-fixes the wire core into the welding hole of the printed circuit board through the lower first clamp part and the second clamp part of the wire clamp, which can effectively avoid the problem of welding leakage caused by the wire core being detached or shifted due to external force during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 A three-dimensional composite diagram of the power socket of this application mounted on a printed circuit board;

[0020] Figure 2 A perspective view of the power socket for this application;

[0021] Figure 3 A three-dimensional diagram of the power socket for this application without the fixing base;

[0022] Figure 4 For along Figure 2 A cross-sectional view taken along the dashed line AA shown;

[0023] Figure 5 A three-dimensional diagram of the conductive terminals of the power socket of the present application formed on the insulating body;

[0024] Figure 6 A three-dimensional combination diagram of the conductive terminal, connecting piece, cable and wire clamp of the power socket of this application;

[0025] Figure 7 A three-dimensional combination diagram of the conductive terminal and the connecting piece of the power socket of the present application;

[0026] Figure 8 A three-dimensional diagram of the wire clip of the present application being fixed on a cable;

[0027] Fig. 9 A three-dimensional diagram of the wire clamp of this application;

[0028] Fig.10 This is a schematic diagram of the application of the cable clamp to insert the cable on the printed circuit board, that is, along the Figure 1A cross-sectional view taken along the dashed line BB is shown.

[0029] Description of Reference Numerals

[0030] Printed circuit board-10; welding hole-11; fixing seat-20; shell-21; front end-211; rear end-212; accommodating cavity-22; power socket-30; insulating body-31; base-311; insertion portion-312; front cavity-313; rear cavity-314; sheet accommodating groove-3141; limiting protrusion-3142; avoidance groove-3143; partition-315; fixing sheet-316; conductive terminal-32; plug-in portion-321; front fixing convex ring-322; rear fixing convex ring-323; filling space-324; riveted tail-3 25; tooth structure-326; wrapped part-327; cable-33; wire core-331; outer sheath-332; heat shrink tube-333; connecting piece-34; sheet body-341; cable connecting part-342; wire core riveting part-343; sheath riveting part-344; wire clamp-40; base-41; first base-411; second base-412; third base-413; first clamping part-42; first core wire clamp-421; lower clamping part-422; second clamping part-43; second core wire clamp-431; upper clamping part-432; sheath clamping part-44. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of this application clearer, the technical solution of this application will be clearly and completely described below in combination with the specific embodiments of this application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of this application, not all of them.

[0032] See also Figure 1 , Figure 2 , Fig.10 As shown, the power socket 30 of the present application is fixed on the printed circuit board 10, and a fixing base 20 is fixed on the printed circuit board 10. The power socket 30 is fixed on the printed circuit board 10 through the fixing base 20. The power socket 30 includes a cable 33 and is connected to the printed circuit board 10 through the cable 33.

[0033] The printed circuit board 10 is provided with a welding hole 11 for connecting the cable 33. The fixing seat 20 includes a housing 21 and a receiving cavity 22 that longitudinally penetrates the housing 21. The housing 21 includes a front end 211 and a rear end 212, the front end 211 is an annular cylindrical structure, and the receiving cavity 22 is located in the front end 211. The upper side of the rear end 212 is open and has a planar structure, and the surface of the rear end 212 is flush with the bottom surface of the receiving cavity 22.

[0034] Please continue reading Figures 3 to 7 As shown, the power socket 30 includes an insulating body 31, a conductive terminal 32 integrally formed in the insulating body 31, a connecting piece 34 riveted to the conductive terminal 32, and a cable 33 having two ends respectively connected to the connecting piece 34 and the printed circuit board 10.

[0035] The insulating body 31 includes a base 311, an insertion portion 312 extending forward from the base 311, a front cavity 313 formed in the insertion portion 312 and open at the front end, a rear cavity 314 formed in the base 311 and open at the rear end, and a partition 315 separating the front cavity 313 and the rear cavity 314.

[0036] The outer diameter of the base 311 is larger than the outer diameter of the insertion portion 312, and the outer dimensions of the insertion portion 312 are just enough to be inserted into the accommodating cavity 22 of the fixing seat 20. The base 311 is carried by the rear end portion 212 of the fixing seat 20. A fixing piece 316 is formed by extending backward from the bottom of the base 311, and the insertion portion 312 of the insulating body 31 is fixed by being inserted into the accommodating cavity 22 of the fixing seat 20. The fixing piece 316 at the rear end of the base 311 is attached to and locked on the fixing seat 20 or the printed circuit board 10 by screws.

[0037] The conductive terminal 32 is integrally injection molded on the partition 315 , and includes a wrapped portion 327 wrapped in the partition 315 , a mating portion 321 extending forward from the wrapped portion 327 to the front cavity 313 , and a riveted tail portion 325 extending backward from the wrapped portion 327 to the rear cavity 314 .

[0038] The plug-in portion 321 is cylindrical and is connected to the plug. The wrapped portion 327 is formed with a front fixing convex ring 322 and a rear fixing convex ring 323 protruding radially outward in the front-to-back direction. A filling space 324 is formed between the front fixing convex ring 322 and the rear fixing convex ring 323. The distance between the front end face of the front fixing convex ring 322 and the rear end face of the rear fixing convex ring 323 is consistent with the thickness of the partition 315. The outer peripheral surface of the front fixing convex ring 322 and / or the rear fixing convex ring 323 is set with a tooth structure 326 or other non-circular structure.

[0039] The outer circumference of the tooth structure 326 or other non-circular structure is wrapped by the plastic of the partition 315, which can effectively prevent the conductive terminal 32 and the insulating body 31 from rotating and shifting due to external force. The tooth structure 326 can be provided on the front fixed convex ring 322 or the rear fixed convex ring 323. In this embodiment, the outer diameters of the front fixed convex ring 322 and the rear fixed convex ring 323 are both larger than the outer diameter of the plug-in portion 321.

[0040] In one embodiment, the outer diameter of the wrapped portion 327 can be designed to be smaller than the outer diameter of the inserting portion 321 to produce a step to replace the front fixing protrusion 322, and a rough surface or a tooth structure 326 can be provided on the surface of the wrapped portion 327 to replace the front fixing protrusion 322 and the tooth structure thereon in the aforementioned scheme.

[0041] In one embodiment, the wrapped portion 327 can reduce its outer diameter at the corresponding position of the conductive terminal 32 so that a depression is formed in the middle of the wrapped portion 327 to correspond to the filling space 324 , and the tooth structure 326 is provided at the front or rear end of the filling space 324 .

[0042] When the partition 315 of the insulating body 31 is injection molded, the plastic fills the filling space 324 and wraps the tooth structure. The front fixing convex ring 322 and the rear fixing convex ring 323 are limited to the front and rear sides of the plastic in the filling space 324 in the front and rear directions to achieve a stable structure.

[0043] The riveted tail 325 is designed to be a forked structure to facilitate subsequent riveting processing. The riveted tail 325 is preferably separated into a four-piece structure, that is, a cross-shaped groove is formed in the middle. During subsequent riveting, a conical riveting head is used to press the center of the groove of the riveted tail 325 forward, so that the tail of the riveted structure is separated outward to achieve riveting.

[0044] The cable 33 includes a core 331 and an outer sheath 332 wrapped around the core 331. A heat shrink tube 333 is also retained outside the cable 33. The heat shrink tube 333 heats and shrinks the cable 33 and the connecting piece 34 connected to the cable 33 after the cable 33 is connected.

[0045] The connecting piece 34 is generally L-shaped, and includes a sheet 341 with a perforation (not numbered) and a cable connecting portion 342 formed by vertically bending from one side of the sheet 341. The cable connecting portion 342 includes a core riveting portion 343 and a cladding riveting portion 344 formed at the rear end of the core riveting portion 343. The core riveting portion 343 and the cladding riveting portion 344 are riveted to fix the core 331 and the outer cladding 332, respectively, and the specific structure thereof is prior art and will not be described in detail herein.

[0046] The partition plate 315 of the insulating body 31 is exposed to the side of the rear cavity 314 and is formed with a sheet body receiving groove 3141 located at the periphery of the riveted tail 325 for receiving the sheet body 341, a plurality of limiting protrusions 3142 formed at the periphery of the sheet body receiving groove 3141 and abutting against the periphery of the sheet body 341, and an avoidance groove 3143 communicating with the sheet body receiving groove 3141 and located above it. The avoidance groove 3143 is used to avoid the cable connecting portion 342.

[0047] After the conductive terminal 32 is molded with the insulating body 31, the sheet 341 of the connecting sheet 34 riveted with the cable 33 is inserted outside the riveted tail 325. Initially, the outer diameter of the riveted tail 325 is not expanded and is in a regular cylindrical shape. After the connecting sheet 34 is installed, the riveted tail 325 is pressed forward by the riveting head, so that the riveted tail 325 is divided into multiple pieces and expanded radially outward to tightly fix the sheet 341 on the riveted tail 325. At this time, the sheet 341 is pressed and tightly fit on the end surface of the rear fixing convex ring 322 to achieve electrical conduction.

[0048] The power socket of the present application can effectively strengthen the bonding force and torsion resistance between the conductive terminal 32 and the partition 315 of the insulating body 31 by designing a front fixing convex ring 322 and a rear fixing convex ring 323 on the wrapped portion 327 of the conductive terminal 32, and designing a tooth structure 326 on the outer peripheral surface of the front fixing convex ring 322 or the rear fixing convex ring 323. By dividing the riveted tail 325 of the conductive terminal 32 into a sheet structure, the connecting sheet 34 is fixed and connected to the riveted tail 325 by riveting, which can effectively improve the manufacturing efficiency and reduce the cost compared with the existing spot welding fixing method.

[0049] Please continue reading Figures 8 to 10 As shown, the wire clamp 40 of the present application includes a base 41 extending in a vertical direction, a first clamping portion 42 arranged at the lower end of the base 41, a second clamping portion 43 arranged in the middle of the base 41, and a cladding clamping portion 44 arranged at the upper part of the base 41.

[0050] The base 41 includes a first base 411 at the bottom, a second base 412 extending from the top of the first base 411 and bending inward, and a third base 413 extending vertically upward from the top of the second base 412 .

[0051] The first clamping portion 42 includes a first core wire clamp 421 formed by bending from both sides of the lower end of the first base 411, and a lower clamping portion 422 formed by extending obliquely from the upper side of the first core wire clamp 421 along the outer side. The second clamping portion 43 includes a second core wire clamp 431 formed by bending from both sides of the upper end of the first base 411, and an upper clamping portion 432 formed by extending from the upper side of the second core wire clamp 421 along the outer side. The cladding clamping portion 44 is formed by bending from both sides of the third base 413.

[0052] The first core wire clamp 421 and the second core wire clamp 431 are both used for riveting and conducting the core wire 331 of the cable 33, and the cladding clamping portion 44 is used for riveting and fixing the outer cladding 332 of the cable 33. The lower clamping portion 422 is in an outwardly inclined state, and the upper clamping portion 432 is preferably a horizontal structure and is located above the lower clamping portion 422, and there is a certain distance between the lower clamping portion 422 and the upper clamping portion 432.

[0053] In one embodiment, only one of the first core wire clamp 421 and the second core wire clamp 431 needs to be retained.

[0054] In another embodiment, the first clamping portion 42 is not formed by extending from both sides of the first base 411, and the lower clamping portion 422 of the first clamping portion 42 is formed by extending downward from the second core clamp 431 and then tearing and extending obliquely outward. However, this embodiment has the problem of insufficient stability.

[0055] Please refer to Fig.10 As shown, the wire clamp 40 of the present application cooperates with the printed circuit board 10. After the cable 33 is riveted and fixed to the wire clamp 40, that is, the wire core 331 of the cable 33 is riveted and fixed to the first core wire clamp 421 and / or the second core wire clamp 431, and the outer sheath 332 of the cable 33 is riveted and fixed to the sheath clamping portion 44, the wire clamp 40 drives the wire core 331 of the cable 33 to be inserted downward into the welding hole 11 of the printed circuit board 10. At this time, the lower clamping portion 422 is compressed first, and then after passing through the welding hole 11, it is bounced outward and abutted against the lower surface of the printed circuit board 10, and the upper clamping portion 432 is directly abutted against the upper surface of the printed circuit board 10. In this way, the problem of welding leakage caused by the core 331 falling off or shifting due to external force during the welding of the core 331 can be avoided.

[0056] The wire clamp 40 of the present application fixes the cable 33 by riveting, and then pre-fixes the wire core 331 to the welding hole 11 of the printed circuit board 10 through the lower clamping part 422 and the upper clamping part 432 of the wire clamp 40, which can effectively avoid the problem of welding leakage caused by the wire core 331 being detached or shifted due to external force during the welding process.

[0057] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A wire clamp for pre-fixing a cable in a solder hole of a printed circuit board, wherein the cable comprises a wire core and an outer sheath wrapping the wire core, characterized in that: The wire clamp includes a base extending in the vertical direction, a first clamping portion and a second clamping portion formed on both lateral sides of the base in the vertical direction, and a cladding clamping portion bent from the upper end of the base, the cladding clamping portion clamps the outer cladding of the cable, the wire core is riveted and fixed in the first clamping portion and / or the second clamping portion, the wire clamp drives the wire core to be inserted into the welding hole from above, the first clamping portion is abutted against the lower surface of the printed circuit board after insertion, and the second clamping portion is abutted against the upper surface of the printed circuit board.

2. The wire clamp according to claim 1, characterized in that: The first clamping portion includes a first core wire clamp formed by bending from both lateral sides of the base and used to rivet the wire core, and a lower clamping portion formed by extending obliquely outward and upward from the upper side of the first core wire clamp; the second clamping portion is located above the first clamping portion, and the second clamping portion includes a second core wire clamp formed by bending from both lateral sides of the base and used to rivet the wire core, and an upper clamping portion formed by bending from the second core wire clamp along the lateral outer side.

3. The wire clamp according to claim 1, characterized in that: The second clamping portion is located above the first clamping portion, and the second clamping portion includes a second core wire clamp formed by bending from both sides of the base body and riveting the wire core, and an upper clamping portion formed by bending from the second core wire clamp along the lateral outside; the first clamping portion includes a lower clamping portion formed by extending downward from the bottom of the second core wire clamp and then tearing and extending obliquely outward and upward.

4. The wire clamp according to claim 2 or 3, characterized in that: The wire clamp drives the wire core of the cable clamped thereon to be inserted into the welding hole of the printed circuit board. After passing through the welding hole, the lower clamping portion pops outward and abuts against the lower surface of the printed circuit board, and the upper clamping portion abuts against the upper surface of the printed circuit board in a horizontal state.

5. The wire clamp according to claim 4, characterized in that: The base includes a first base, a second base formed by bending and extending obliquely upward from the top of the first base to one side of the second clamping portion, and a third base formed by extending vertically upward from the top of the second base. The first clamping portion and the second clamping portion are respectively bent and extended from the lateral sides of the upper and lower ends of the first base, and the cladding clamping portion is bent from the lateral outer side of the third base.

6. A power socket, characterized in that: It includes the wire clamp for clamping a cable as described in claim 1, an insulating body fixed on the printed circuit board, a conductive terminal integrally formed in the insulating body and a connecting piece riveted on the conductive terminal, the other end of the cable is riveted to the connecting piece, the insulating body includes a base, an insertion portion extending forward from the base, a front cavity formed in the insertion portion, a rear cavity formed in the base and a partition separating the front cavity and the rear cavity, the conductive terminal is integrally formed on the partition, the conductive terminal includes a wrapped portion fixed in the partition, a plug-in portion extending from the wrapped portion to the front cavity and a riveted tail portion extending from the wrapped portion to the rear cavity, the connecting piece includes a sheet body sleeved on the riveted tail portion and a cable connecting portion riveted to the cable formed by bending from the sheet body.

7. The power socket according to claim 6, characterized in that: The riveted tail is cut to form a sheet structure, and preferably the riveted tail is divided into four parts by a cross-shaped groove; the wrapped part includes a front fixing convex ring, a rear fixing convex ring and a filling space between the front fixing convex ring and the rear fixing convex ring protruding on the front and rear sides, the outer diameters of the front fixing convex ring and the rear fixing convex ring are larger than the outer diameter of the plug-in part of the conductive terminal, and the rear end face of the rear fixing convex ring is exposed in the rear cavity.

8. The power socket according to claim 7, characterized in that: The sheet body is provided with a through hole which is sleeved outside the riveted tail portion, and the sheet body is sleeved on the riveted tail portion through the through hole. The groove of the riveted tail portion is squeezed by a rivet head to expand the four parts of the riveted tail portion radially outward so as to make the sheet body close to the rear end face of the rear fixed convex ring, and the sheet body is in conduction with the rear end face of the rear fixed convex ring.

9. The power socket according to claim 8, characterized in that: The partition is located on one side of the rear cavity and is provided with a sheet accommodating groove for accommodating the sheet. The sheet accommodating groove has protrusions around it to form limiting protrusions around the sheet. The sheet accommodating groove is also connected above to form an avoidance groove for avoiding the cable connecting part.

10. The power socket according to claim 9, characterized in that: The distance between the front end face of the front fixing convex ring and the rear end face of the rear fixing convex ring is consistent with the thickness of the partition, and the front end face of the front fixing convex ring is exposed in the front cavity, and the filling space is filled with the plastic of the partition and clamped by the front fixing convex ring and the rear fixing convex ring.

11. The power socket according to claim 10, characterized in that: A tooth structure is provided on the outer circumferential surface of the front fixing convex ring and / or the rear fixing convex ring, and the tooth structure is wrapped by the plastic of the partition.

12. The power socket according to claim 11, characterized in that: A fixing seat is fixed on the printed circuit board, and the insulating body is fixed on the printed circuit board through the fixing seat. The fixing seat includes a shell and a accommodating cavity that longitudinally penetrates the shell. The shell includes a front end and a rear end. The accommodating cavity is opened in the front end, and the upper side of the rear end is open. The insertion portion of the insulating body is inserted forward into the accommodating cavity, and the base is supported on the upper side of the rear end.

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