Connector with contact pins convenient to replace

Abstract

The utility model provides a connector with pins convenient to replace, which relates to the technical field of connectors and comprises a shell, the bottom of the shell is provided with a plugging port, the upper end face of the shell is provided with two columns and a plurality of rows of pins in a rectangular array, and the lower ends of the plurality of pins are detachably mounted on the shell. The contact pin comprises a fixed pin, a welding pin and a connecting piece, the top of the fixed pin extends to form an upper extension pin which forms an L-shaped structure with an upward opening with the fixed pin, the lower end of the welding pin extends to form a lower extension pin which forms an L-shaped structure with a downward opening with the welding pin, and the side walls, close to each other, of the upper extension pin and the lower extension pin are attached; the bottom of the fixing needle is provided with an insertion block in spherical hinge joint with the fixing needle, and the upper end face of the shell is provided with an insertion groove matched with the insertion block and a locking piece. The connecting piece comprises a U-shaped sleeve, a plugging plate is horizontally and slidably installed at an opening of the U-shaped sleeve, and a fixing assembly for fixing the plugging plate is arranged on the side wall of the U-shaped sleeve. The whole connector does not need to be replaced when the contact pin breaks down, cost is reduced, replacement efficiency is improved, and the use effect of the contact pin after replacement is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a connector with easily replaceable pins. Background Technology

[0002] Connectors are common automotive components, typically soldered onto circuit boards and plugged into other automotive parts to transmit various signals and control different functions. In existing technology, the pins and housing of connectors are integrated into a single unit. When a few pins experience connection or transmission failure, the entire connector needs to be replaced. Replacement requires cutting all pins from their solder points on the circuit board and resoldering them. This not only reduces replacement efficiency and increases costs, but also involves resoldering all points, compromising solder quality and potentially affecting the connector's performance. Utility Model Content

[0003] The purpose of this invention is to provide a connector that facilitates the replacement of pins. By configuring each pin as including a fixing pin, a soldering pin, and a connector that connects and fixes the two, it is easy to accurately replace the pin when it fails, without having to replace the entire connector, thus reducing costs, improving replacement efficiency, and ensuring the effectiveness of the replaced pin.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A connector with easily replaceable pins includes a housing. The bottom of the housing is provided with a plug interface for connecting and cooperating with an external device. The upper surface of the housing is provided with a rectangular array of pins in two columns and several rows. Several of the pins are detachably mounted on the housing at one end perpendicular to the housing and close to the housing.

[0006] Each pin includes a fixing pin detachably connected to the housing, a soldering pin soldered to the circuit board, and a connector connecting the fixing pin and the soldering pin. The top of the fixing pin extends into an upper extension pin forming an upward-opening L-shaped structure, and the lower end of the soldering pin extends into a lower extension pin forming a downward-opening L-shaped structure. The upper extension pin and the fixing pin are integrally formed, and the lower extension pin and the soldering pin are integrally formed, with their sidewalls close to each other. The bottom of the fixing pin is provided with a plug that is ball-jointed with it. The upper end face of the housing is provided with a slot that mates with the plug, and the housing is provided with a locking fastener that mates with the plug.

[0007] The connector includes a U-shaped sleeve with a vertical side wall opening. A sealing plate that can block the opening of the U-shaped sleeve is horizontally slidably installed at the opening. The sealing plate and the U-shaped sleeve form a sleeve structure in which the inner wall fits against the outer wall of the fixing pin, the upper extension pin, the welding pin, and the lower extension pin. The side wall of the U-shaped sleeve is provided with a fixing component for fixing the sealing plate.

[0008] By adopting the above technical solution, under normal conditions, the upper and lower extension pins fit together to achieve the conduction of the fixing pin and the welding pin. Under the action of the connector composed of the U-shaped sleeve and the sealing plate, the connector connects the fixing pin and the welding pin from all sides. The lower end of the fixing pin is fixed to the housing through the cooperation of the plug, the slot and the locking fastener. The upper end of the welding pin is welded to the external circuit board and can be connected to external devices through the plug interface. The positions of the upper and lower ends of the plug are fixed, which can ensure that it works in a vertical state and ensure the normal use of the connector. When a pin malfunctions, the location of the fault can be determined through inspection. If the connector is loose, causing poor disengagement between the fixing component and the connector, tighten the fixing component. If the solder pin malfunctions, release the sealing plate through the fixing component, slide the sealing plate to open the U-shaped sleeve opening, remove the U-shaped sleeve, disconnect the solder pin from the circuit board, remove the solder pin, and re-fix a new solder pin to the fixing pin using the connector. Then connect the new solder pin to the circuit board. If the fixing pin malfunctions, release the fixing component from the fixing pin and the solder pin, rotate the fixing pin to misalign it with the solder pin, release the locking device from the plug block, remove the plug block from the slot, and replace it with a new fixing pin.

[0009] This invention simplifies the replacement of pins by providing each pin with a fixing pin, a soldering pin, and a connector that secures the two together. This allows for precise replacement of pins when they malfunction, eliminating the need to replace the entire connector, reducing costs, increasing replacement efficiency, and ensuring the effectiveness of the replaced pins.

[0010] Furthermore, the U-shaped sleeve has sealing grooves on both sides near its opening that cooperate with the sealing plate, and one end of the sealing plate has a vertically arranged anti-detachment strip that cooperates with the sealing groove; the fixing assembly includes a fixing strip arranged on the side of the U-shaped sleeve near its opening and away from the anti-detachment strip, the fixing strip is vertically arranged and slidably installed on the side wall of the U-shaped sleeve along the horizontal direction perpendicular to the sliding direction of the sealing plate; the side of the fixing strip near the sealing plate has a plurality of fixing rods arranged in a vertical array along the axis of the fixing rod sliding direction, and the end of the sealing plate away from the anti-detachment strip has a plurality of fixing holes that correspond one-to-one with the fixing rods.

[0011] By adopting the above technical solution, the sealing groove limits and guides the sliding of the sealing plate, and the anti-detachment strip prevents the sealing plate from detaching from the U-shaped sleeve, ensuring the stability of the sealing plate during operation. Under normal conditions, the fixing rods are inserted into the corresponding fixing holes to limit the sealing plate and fix its position. When it is necessary to release the fixing effect on the sealing plate, the fixing strips drive several fixing rods to slide away from the sealing plate, causing the fixing rods to disengage from the fixing holes. The structure is simple and easy to operate.

[0012] Furthermore, the side wall of the U-shaped sleeve is provided with a dovetail groove arranged along the sliding direction of the fixing bar, and a dovetail block is provided on the fixing bar and slidably installed in the dovetail groove. A fixing spring is connected between the dovetail block and the end of the dovetail groove away from the fixing rod. The fixing spring is arranged along the length direction of the dovetail groove and is located in the dovetail groove.

[0013] By adopting the above technical solution, the dovetail block is slidably installed in the dovetail groove, realizing the sliding installation of the fixing strip and ensuring its sliding stability. Under the action of the fixing spring, it is ensured that the fixing rod can always be inserted into the fixing hole in the normal state. When unlocking, the sliding fixing strip can overcome the action of the fixing spring, thus ensuring the fixing effect of the fixing component on the sealing plate in the normal state.

[0014] Furthermore, the four sides of the fixing pin are respectively provided with lower limit blocks extending outward, and the four sides of the welding pin are respectively provided with upper limit blocks extending outward. The lower end of the U-shaped sleeve and the sealing plate abuts against the upper end of the lower limit block, and the upper end abuts against the lower end of the upper limit block.

[0015] By adopting the above technical solution, the upper limit block and the lower limit block can limit the vertical movement of the connector, thus preventing the connector from shifting vertically along the pin when encountering vibrations or bumps, which would affect its connection with the fixing pin and the welding pin.

[0016] Furthermore, the upper extension pin has a clearance hole that is horizontal and vertical to the side wall near the lower extension pin. A positioning rod is slidably installed in the clearance hole. The lower extension pin has a positioning hole that mates with the positioning rod on the side wall near the upper extension pin. A positioning spring is connected between the end of the positioning rod away from the positioning hole and the bottom of the clearance hole groove. Under normal conditions, one end of the positioning rod is located in the clearance hole and the other end is located in the positioning hole under the action of the positioning spring. The positioning rod is also connected to an unlocking component that drives it to slide out of the positioning hole.

[0017] By adopting the above technical solution, under normal conditions, the positioning rod is positioned with one end in the clearance hole and the other end in the positioning hole under the action of the positioning spring. This not only further ensures the conductivity between the lower and upper extension pins for the fixing pin and the welding pin, but also allows for the positioning and stabilization of the fixing pin and the welding pin before installing the connector, ensuring the smooth installation of the U-shaped sleeve. When it is necessary to separate the fixing pin and the welding pin, the positioning rod can be slid out of the positioning hole using the unlocking component.

[0018] Furthermore, the unlocking component includes an unlocking vertical hole vertically disposed at the end of the clearance hole away from the positioning hole and communicating with the clearance hole. The lower end of the unlocking vertical hole is connected to an unlocking horizontal hole that is perpendicular to it. The unlocking horizontal hole is perpendicular to the clearance hole, and its end away from the unlocking vertical hole passes through the side wall of the fixing pin and is located below the U-shaped sleeve. The end of the positioning rod away from the positioning hole is connected to an unlocking rope. The end of the unlocking rope away from the positioning rod passes through the clearance hole, the unlocking vertical hole, and the unlocking horizontal hole in sequence and is connected to a pull rod located outside the unlocking horizontal hole. The connection between the clearance hole and the unlocking vertical hole and the connection between the unlocking vertical hole and the unlocking horizontal hole are provided with a reversing wheel that cooperates with the unlocking rope.

[0019] By adopting the above technical solution, when it is necessary to separate the fixing pin and the welding pin, the unlocking rope is pulled by the pull rod. The unlocking rope pulls the positioning rod to overcome the elastic force of the positioning spring, and the positioning rod is pulled out from the positioning hole. The pull rod facilitates pulling the unlocking rope while preventing the movable end of the unlocking rope from completely entering the unlocking transverse hole. The reversing wheel reverses the direction of the unlocking rope's tension, ensuring the effective pulling of the unlocking rope on the positioning rod. The unlocking transverse hole is located below the U-shaped sleeve to avoid interference with the U-shaped sleeve and affect the normal operation of the unlocking rope.

[0020] Furthermore, the upper end of the insert block is higher than the upper end of the slot, and the side walls around the insert block are provided with locking grooves that are perpendicular to it and located above the slot. The upper end of the housing is provided with guide grooves that correspond to and cooperate with a plurality of locking grooves. The locking device includes a guide block that is slidably installed in the guide groove along the length direction of the corresponding guide groove. A locking spring is connected between the guide block and the end of the guide groove away from the insert block. A locking rod is hinged to the upper end of the guide block. The hinge axis of the locking rod is set horizontally and perpendicular to the length direction of its corresponding guide groove. When the locking rod is rotated to the horizontal state, its movable end is inserted into the corresponding locking groove.

[0021] By adopting the above technical solution, before the insert block is inserted into the corresponding slot, the locking rod is rotated to a vertical position, which facilitates the sequential operation of the locking rods. After the insert block is inserted into the corresponding slot, each locking rod is operated sequentially. First, the sliding guide block compresses the locking spring, causing the locking rod to move away from the insert block. Then, the locking rod is rotated to a horizontal position. Under the action of the locking spring, the guide block is directly driven to move the horizontal locking rod closer to the insert block, so that the movable end of the locking rod is inserted into the corresponding locking groove. With the cooperation of the locking rods and locking grooves around the insert block, the insert block is limited and fixed, that is, the fixing pin and the housing can be detachably installed, and the locking spring ensures the limiting and fixing effect of the insert block. When it is necessary to remove the insert block, pull the guide block to compress the locking spring, pull the locking rod completely out of the locking groove, and then rotate the locking rod to a vertical position.

[0022] Furthermore, a connecting pin is connected to the bottom of the plug, and a connecting hole that mates with the connecting pin is provided at the bottom of the slot. The connecting hole connects the slot and the plug interface, and the end of the connecting pin away from the plug is located inside the plug interface.

[0023] By adopting the above technical solution, the connecting pin is connected to the fixing pin through the plug. The end of the connecting pin away from the connecting hole passes through the connecting hole and is located inside the plug interface. This makes it easy to achieve the connection between the fixing pin and the external device when the housing is connected to the external device through the plug interface. The structure is simple, easy to operate and has obvious effect.

[0024] In summary, this utility model has the following beneficial effects:

[0025] 1. This utility model sets each pin to include a fixing pin, a welding pin, and a connector that connects and fixes the two. The fixing pin is detachably connected to the housing, and the welding pin is welded to the circuit board. This facilitates accurate replacement when the pin fails, without having to replace the entire connector, reducing costs, improving replacement efficiency, and ensuring the performance of the replaced pin.

[0026] 2. This utility model, through the setting of structures such as upper extension pin, lower extension pin, clearance hole, positioning rod, positioning hole, positioning spring, and unlocking component, ensures the conductivity of the fixing pin and welding pin, and at the same time, it can position and stabilize the fixing pin and welding pin before installing the connector, ensuring the smooth installation of the U-shaped sleeve during the connection.

[0027] 3. This utility model achieves a detachable connection between the fixing pin and the housing by setting up structures such as insert blocks, slots, locking grooves, guide grooves, guide blocks, locking springs, and locking rods, and ensures the stability of the fixing pin installation. The lower end of the fixing pin and the insert block are ball-jointed, which makes it convenient to rotate the fixing pin first and then pull the insert block upward when replacing the fixing pin, so as to maximize the contact area between the lower extension pin and the upper extension pin, and ensure the conductivity between the fixing pin and the welding pin. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a connector that facilitates pin replacement;

[0029] Figure 2 This is a schematic diagram of the pin structure in a connector that facilitates pin replacement;

[0030] Figure 3 This is an exploded view of the pin structure in a connector that facilitates pin replacement;

[0031] Figure 4 This is a cross-sectional view of a portion of the pin structure in a connector that facilitates pin replacement;

[0032] Figure 5 yes Figure 4 Enlarged view of part A in the middle.

[0033] In the diagram, 1. Housing; 11. Socket; 12. Connecting hole; 13. Slot; 14. Guide groove; 2. Pin; 3. Fixing pin; 31. Upper extension pin; 311. Clearing hole; 32. Insert block; 321. Locking groove; 322. Connecting pin; 33. Locking element; 34. Guide block; 35. Locking spring; 36. Locking rod; 37. Lower limit block; 4. Welding pin; 41. Lower extension pin; 42. Upper limit block; 43. Positioning hole 5. Connector; 51. U-shaped sleeve; 511. Sealing groove; 512. Dovetail groove; 52. Sealing plate; 521. Anti-detachment strip; 522. Fixing hole; 53. Fixing component; 54. Fixing strip; 541. Dovetail block; 55. Fixing rod; 56. Fixing spring; 6. Positioning rod; 61. Positioning spring; 62. Unlocking component; 63. Unlocking vertical hole; 64. Unlocking horizontal hole; 65. Unlocking rope; 66. Pull rod; 67. Reversing wheel. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0035] A connector with easily replaceable pins, such as Figure 1 As shown, the housing 1 includes a rectangular structure. The upper surface of the housing 1 has two columns of pins 2 arranged in a rectangular array. The pins 2 are perpendicular to the housing 1 and have a plug 32 at one end near the housing 1. The upper surface of the housing 1 has a number of slots 13 that cooperate with the plugs 32. The housing 1 also has a locking fastener 33 that cooperates with the plugs 32. The plugs 32 are detachably and fixedly installed in the slots 13 by means of the locking fastener 33, that is, the pins 2 are detachably and fixedly installed on the housing 1.

[0036] In addition, such as Figure 1 As shown, a connector 11 for connecting to an external device is provided at the bottom of the housing 1. A connecting pin 322 is connected to the bottom of the plug block 32. A connecting hole 12 for cooperating with the connecting pin 322 is provided at the bottom of the slot 13. The connecting hole 12 connects the slot 13 and the connector 11, and the end of the connecting pin 322 away from the plug block 32 is located inside the connector 11. The connecting pin 322 is conductive to the pin 2 through the plug block 32. The end of the connecting pin 322 away from the connecting hole 12 passes through the connecting hole 12 and is located inside the connector 11, which facilitates the conductive connection between the pin 2 and the external device through the connection of the connecting pin 322 when the housing 1 is connected to the external device through the connector 11.

[0037] In this embodiment, as Figure 2As shown, each pin 2 includes a fixing pin 3, a soldering pin 4, and a connector 5. The bottom of the fixing pin 3 is connected to the insertion block 32. The fixing pin 3 is detachably and fixedly installed on the housing 1 through the cooperation of the insertion block 32, the slot 13, and the locking fastener 33. The upper end of the soldering pin 4 is soldered to the circuit board. The upper end of the fixing pin 3 and the lower end of the soldering pin 4 are detachably and fixedly connected through the connector 5. In this way, if the pin 2 fails, the fixing pin 3, the soldering pin 4, or the entire pin 2 can be precisely replaced according to the location of the fault, without replacing the entire connector. This effectively improves replacement efficiency, reduces costs, and ensures the performance of the replaced pin 2.

[0038] Specifically, such as Figure 2 As shown, to achieve the limiting and fixing of the insert 32, in this embodiment, the upper end of the insert 32 is higher than the upper end of the slot 13. Locking grooves 321 are respectively provided on the side walls around the insert 32, corresponding to the locking grooves 321 located above the slot 13. Each locking groove 321 is arranged horizontally and perpendicularly to the side wall of its corresponding insert 32. A guide groove 14 is provided at the upper end of the housing 1, corresponding to and cooperating with several locking grooves 321 and arranged along the length direction of the corresponding locking groove 321. The locking device 33 includes a guide block 34 slidably installed in the guide groove 14 along the length direction of the corresponding guide groove 14. A locking spring 35 is connected between the guide block 34 and the end of the guide groove 14 away from the insert 32, and the locking spring 35 is arranged in the guide groove 14 along the length direction of the guide groove 14. A locking rod 36 is hinged to the upper end of the guide block 34. The hinge axis of the locking rod 36 is set horizontally and perpendicular to the length direction of its corresponding guide groove 14. When the locking rod 36 is rotated to the horizontal state, its lower end face is located above the upper end face of the housing 1 and its movable end is inserted into the corresponding locking groove 321.

[0039] like Figure 2 As shown, before inserting the plug 32 into the corresponding slot 13, rotate the locking rods 36 around the plug 32 to a vertical position. After inserting the plug 32 into the corresponding slot 13, operate each locking rod 36 in sequence. First, slide the guide block 34 to compress the locking spring 35, causing the locking rod 36 to move away from the plug 32. Then, rotate the locking rod 36 to a horizontal position. Under the action of the locking spring 35, directly drive the guide block 34 to move the horizontal locking rod 36 closer to the plug 32, so that the movable end of the locking rod 36 is inserted into the corresponding locking groove 321. With the cooperation of the locking rods 36 and the locking groove 321 around the plug 32, the plug 32 is limited and fixed, that is, the fixing pin 3 and the housing 1 can be detachably installed, and the locking effect of the plug 32 is guaranteed under the action of the locking spring 35. When it is necessary to remove the insert 32, pull the guide block 34 to compress the locking spring 35, pull the locking rod 36 completely out of the locking groove 321, and then rotate the locking rod 36 to a vertical position.

[0040] like Figure 3As shown, to ensure the contact and conduction between the fixing pin 3 and the welding pin 4, and the detachable fixed connection of the connected parts 5, an upper extension pin 31 extends from the top of the fixing pin 3, forming an L-shaped structure with its opening facing upwards. A lower extension pin 41 extends from the lower end of the welding pin 4, forming an L-shaped structure with its opening facing downwards. The upper extension pin 31 is integrally formed with the fixing pin 3, and the lower extension pin 41 is integrally formed with the welding pin 4. The sidewalls of the upper extension pin 31 and the lower extension pin 41 are close to each other and fit together. To facilitate the upward pulling out of the bottom insertion block 32 of the fixing pin 3, in this embodiment, the bottom of the fixing pin 3 is ball-jointed with the insertion block 32. There is a certain distance between the upper end of the upper extension pin 31 and the bottom of the welding pin 4, and between the lower end of the lower extension pin 41 and the top of the welding pin 4, so that the ball joint of the fixing pin 3 can rotate.

[0041] Based on this, such as Figure 4 and Figure 5 As shown, to ensure precise fitting of the upper extension pin 31 and the lower extension pin 41, a clearance hole 311, perpendicular to the horizontal plane, is provided on the side wall of the upper extension pin 31 near the lower extension pin 41. A positioning rod 6, sliding along its length, is provided within the clearance hole 311. A positioning hole 43, cooperating with the positioning rod 6, is provided on the side wall of the lower extension pin 41 near the upper extension pin 31. A positioning spring 61 is connected between the end of the positioning rod 6 away from the positioning hole 43 and the bottom of the clearance hole 311. The positioning spring 61 is positioned within the clearance hole 311 along its length. Under normal conditions, with the action of the positioning spring 61, one end of the positioning rod 6 is located in the clearance hole 311 and the other end is located in the positioning hole 43. In this way, the positioning rod 6 and the positioning hole 43 cooperate to limit the contact height of the upper extension pin 31 and the lower extension pin 41, ensuring the conductivity between the upper extension pin 31 and the lower extension pin 41 and the fixed pin 3 and the welded part. Moreover, before installing the connector 5, the fixed pin 3 and the welded pin 4 can be positioned and connected to ensure the stability of their contact so that the connector 5 can detachably fix them.

[0042] like Figure 4 and Figure 5As shown, to facilitate the release of the engagement between the positioning rod 6 and the positioning hole 43 when separating the fixing pin 3 and the welding pin 4, the positioning rod 6 is also connected to an unlocking component 62 that drives it to slide out of the positioning hole 43. Specifically, the unlocking component 62 includes an unlocking vertical hole 63 vertically disposed at the end of the clearance hole 311 away from the positioning hole 43 and connected to the clearance hole 311 at its upper end. The lower end of the unlocking vertical hole 63 is connected to an unlocking horizontal hole 64 that is perpendicular to it and perpendicular to the clearance hole 311. The end of the unlocking horizontal hole 64 away from the unlocking vertical hole 63 passes through the side wall of the fixing pin 3 and is located below the connector 5. The end of the positioning rod 6 away from the positioning hole 43 is also connected to an unlocking rope 65. The end of the unlocking rope 65 away from the positioning rod 6 passes through the clearance hole 311, the unlocking vertical hole 63, and the unlocking horizontal hole 64 in sequence and is connected to a pull rod 66 located outside the unlocking horizontal hole 64. Under normal conditions, the pull rod 66 is limited by the side wall of the fixing pin 3 and cannot enter the unlocking horizontal hole 64.

[0043] like Figure 4 and Figure 5 As shown, when it is necessary to separate the fixing pin 3 and the welding pin 4, the unlocking rope 65 is pulled by the pull rod 66. The unlocking rope 65 pulls the positioning rod 6, overcoming the elastic force of the positioning spring 61, and pulls the positioning rod 6 out of the positioning hole 43. Specifically, reversing wheels 67 are provided at the connection points of the clearance hole 311 and the unlocking vertical hole 63, and the connection points of the unlocking vertical hole 63 and the unlocking horizontal hole 64, to cooperate with the unlocking rope 65. The axes of the reversing wheels 67 at both locations are horizontal and vertical, and the reversing wheels 67 reverse the pulling force of the unlocking rope 65, ensuring the effective pulling of the unlocking rope 65 on the positioning rod 6. Furthermore, the unlocking horizontal hole 64 is located below the connector 5 to prevent interference between the pull rod 66 and the connector 5, which would affect the normal operation of the unlocking rope 65.

[0044] In this embodiment, as Figure 2 and Figure 3 As shown, the connector 5 includes a U-shaped sleeve 51 with a vertical side wall opening. The opening of the U-shaped sleeve 51 is located on the side where the upper extension needle 31 and the lower extension needle 41 are far apart from each other. A sealing plate 52 is horizontally slidably installed at the opening of the U-shaped sleeve 51 to block its opening. The height of the U-shaped sleeve 51 and the sealing plate 52 is higher than the height of the upper extension needle 31 and the lower extension needle 41. After the sealing plate 52 blocks the opening of the U-shaped sleeve 51, the sealing plate 52 and the U-shaped sleeve 51 form a sleeve structure with a rectangular inner hole. The inner side wall of the U-shaped sleeve 51 and the inner wall of the sealing plate 52 are all in contact with the outer wall of the fixing needle 3, the outer wall of the welding needle 4, the upper extension needle 31 and the lower extension needle 41 in the vertical direction. In this way, the fixing needle 3 and the welding needle 4 can be detachably connected and fixed.

[0045] like Figure 2 and Figure 3As shown, to achieve the sliding installation of the sealing plate 52, sealing grooves 511 are provided on both sides of the U-shaped sleeve 51 near its opening, extending through its thickness and cooperating with the sealing plate 52. When the sealing plate 52 seals the opening of the U-shaped sleeve 51, its two ends are located on the side where the two sealing grooves 511 are far apart. One end of the sealing plate 52 is provided with a vertically arranged anti-detachment strip 521 that cooperates with the sealing groove 511. A fixing component 53 is provided on the side wall of the U-shaped sleeve 51 away from the anti-detachment strip 521 to fix the end of the sealing plate 52 away from the anti-detachment strip 521. The sealing grooves 511 limit and guide the sliding of the sealing plate 52, the anti-detachment strip 521 prevents the sealing plate 52 from detaching from the U-shaped sleeve 51, and the fixing component 53 fixes the position of the sealing plate 52, ensuring the stability of the sealing plate 52 during operation.

[0046] Specifically, such as Figure 2 and Figure 3 As shown, the fixing component 53 includes a fixing strip 54 disposed on the side of the U-shaped sleeve 51 near its opening and away from the anti-detachment strip 521. The fixing strip 54 is vertically arranged and slidably mounted on the side wall of the U-shaped sleeve 51 along a horizontal direction perpendicular to the sliding direction of the sealing plate 52. The side wall of the U-shaped sleeve 51 has a dovetail groove 512 arranged along the sliding direction of the fixing strip 54. The fixing strip 54 has a dovetail block 541 slidably mounted in the dovetail groove 512. A fixing spring 56 is connected between the dovetail block 541 and the end of the dovetail groove 512 away from the fixing rod 55. The fixing spring 56 is arranged along the length direction of the dovetail groove 512 and located within the dovetail groove 512. On the side of the fixing strip 54 near the sealing plate 52, a plurality of fixing rods 55 are arranged vertically in an array with their axes arranged along the length direction of the dovetail groove 512. On the end of the sealing plate 52 away from the anti-detachment strip 521, a plurality of fixing holes 522 are provided that correspond one-to-one with the fixing rods 55.

[0047] like Figure 2 and Figure 3 As shown, under normal conditions, the fixing rods 55 are inserted into the corresponding fixing holes 522 under the action of the fixing spring 56, limiting the position of the sealing plate 52 and ensuring its stability. When it is necessary to release the fixing effect on the sealing plate 52, the fixing bar 54 drives several fixing rods 55 to slide away from the sealing plate 52 to overcome the action of the fixing spring 56, so that the fixing rods 55 disengage from the fixing holes 522.

[0048] Among them, such as Figure 2 and Figure 3As shown, lower limit blocks 37 extend outward from the four sides of the fixing pin 3, and upper limit blocks 42 extend outward from the four sides of the welding pin 4. The lower ends of the U-shaped sleeve 51 and the sealing plate 52 abut against the upper ends of the lower limit blocks 37, and the upper ends abut against the lower ends of the upper limit blocks 42. In this way, under the action of the upper limit blocks 42 and the lower limit blocks 37, the vertical direction of the connector 5 is limited, preventing the connector 5 from shifting vertically along the insertion pin 2 when encountering vibrations or bumps, thus affecting its connection effect with the fixing pin 3 and the welding pin 4.

[0049] The working principle and usage of this utility model:

[0050] In normal conditions, the upper extension pin 31 and the lower extension pin 41 are fitted together to achieve the conduction of the fixing pin 3 and the welding pin 4. Under the cooperation of the positioning rod 6 and the positioning hole 43, and the action of the connector 5 composed of the U-shaped sleeve 51 and the sealing plate 52, the connector 5 limits and fixes the fixing pin 3 and the welding pin 4 from all sides. The lower end of the fixing pin 3 is fixed to the housing 1 through the cooperation of the insert block 32, the slot 13 and the locking fastener 33. The upper end of the welding pin 4 is welded to the external circuit board and connected to the external device through the plug interface 11. The connecting pin 322 realizes the conduction between the external device and the plug pin 2. The upper and lower ends of the plug pin 2 are fixed, which can ensure that it works in a vertical state and ensures the normal use of the connector.

[0051] When a pin 2 malfunctions, the location of the fault can be determined by inspection. If the connector 5 is loose, causing poor disengagement between the fixing component and the connector 5, check the limiting effect of the fixing component 53 on the sealing plate 52, tighten the fixing component 53 or replace the entire connector 5. If the welding pin 4 malfunctions, release the sealing plate 52 by fixing component 53, slide the sealing plate 52 to open the U-shaped sleeve 51, remove the U-shaped sleeve 51, then release the engagement between the positioning rod 6 and the positioning hole 43 by unlocking component 62, cut off the connection between the welding pin 4 and the circuit board, remove the welding pin 4, re-fix a new welding pin 4 on the fixing pin 3 using connector 5, and then connect the new welding pin 4 to the circuit board. If the fixing pin 3 malfunctions, after releasing the fixing effect of the connector 5 on the fixing pin 3 and the welding pin 4 and the connection between the positioning rod 6 and the positioning hole 43, rotate the fixing pin 3 to misalign it with the welding pin 4, then release the fixing effect of the locking fastener 33 on the insert block 32, remove the insert block 32 from the slot 13, and replace it with a new fixing pin 3.

[0052] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A connector facilitating replacement of a pin, characterized by: Includes a housing (1), the bottom of the housing (1) is provided with a plug interface (11) for connecting and cooperating with external devices, and the upper surface of the housing (1) is provided with a rectangular array of pins (2) in two columns and several rows, and several of the pins (2) are detachably installed on the housing (1) at one end perpendicular to the housing (1) and close to the housing (1); Each of the pins (2) includes a fixing pin (3) detachably connected to the housing (1), a welding pin (4) soldered to the circuit board, and a connector (5) connecting the fixing pin (3) and the welding pin (4). The top of the fixing pin (3) extends an upper extension pin (31) forming an L-shaped structure with the opening facing upward. The lower end of the welding pin (4) extends a lower extension pin (41) forming an L-shaped structure with the opening facing downward. The upper extension pin (31) is integrally formed with the fixing pin (3), and the lower extension pin (41) is integrally formed with the welding pin (4). The sidewalls of the upper extension pin (31) and the lower extension pin (41) are close to each other. The bottom of the fixing pin (3) is provided with a plug (32) that is ball-jointed with it. The upper surface of the housing (1) is provided with a slot (13) that mates with the plug (32). The housing (1) is provided with a locking fastener (33) that mates with the plug (32). The connector (5) includes a U-shaped sleeve (51) with a vertical side wall opening. A sealing plate (52) that can block the opening of the U-shaped sleeve (51) is horizontally slidably installed at the opening. The sealing plate (52) and the U-shaped sleeve (51) form a sleeve structure in which the inner wall fits against the outer wall of the fixing needle (3), the upper extension needle (31), the welding needle (4), and the lower extension needle (41). The side wall of the U-shaped sleeve (51) is provided with a fixing component (53) for fixing the sealing plate (52).

2. The connector of claim 1, wherein: The U-shaped sleeve (51) has sealing grooves (511) on both sides near its opening that cooperate with the sealing plate (52). The sealing plate (52) has a vertically arranged anti-detachment strip (521) at one end that cooperates with the sealing groove (511). The fixing component (53) includes a fixing strip (54) arranged on the side of the U-shaped sleeve (51) near its opening and away from the anti-detachment strip (521). The fixing strip (54) is vertically arranged and slidably installed on the side wall of the U-shaped sleeve (51) along the horizontal direction perpendicular to the sliding direction of the sealing plate (52). The fixing strip (54) has several fixing rods (55) arranged in a vertical array along the side of the fixing strip (54) near the sealing plate (52). The sealing plate (52) has several fixing holes (522) at the end away from the anti-detachment strip (521) that correspond one-to-one with the fixing rods (55).

3. The connector of claim 2, wherein: The side wall of the U-shaped sleeve (51) is provided with a dovetail groove (512) arranged along the sliding direction of the fixing strip (54). The fixing strip (54) is provided with a dovetail block (541) slidably installed in the dovetail groove (512). A fixing spring (56) is connected between the dovetail block (541) and the end of the dovetail groove (512) away from the fixing rod (55). The fixing spring (56) is arranged along the length direction of the dovetail groove (512) and located in the dovetail groove (512).

4. The connector of claim 3, wherein: The fixing pin (3) has a lower limit block (37) extending outward from its four sides, and the welding pin (4) has an upper limit block (42) extending outward from its four sides. The lower end of the U-shaped sleeve (51) and the sealing plate (52) abuts against the upper end of the lower limit block (37) and the upper end abuts against the lower end of the upper limit block (42).

5. The connector of claim 1 wherein: The upper extension pin (31) has a clearance hole (311) that is horizontal and vertical to the side wall of the lower extension pin (41). A positioning rod (6) is slidably installed in the clearance hole (311). The lower extension pin (41) has a positioning hole (43) that cooperates with the positioning rod (6) on the side wall of the upper extension pin (31). A positioning spring (61) is connected between the end of the positioning rod (6) away from the positioning hole (43) and the bottom of the clearance hole (311). Under normal conditions, one end of the positioning rod (6) is located in the clearance hole (311) and the other end is located in the positioning hole (43) under the action of the positioning spring (61). The positioning rod (6) is also connected to an unlocking component (62) that drives it to slide out of the positioning hole (43).

6. The connector of claim 5 wherein: The unlocking assembly (62) includes an unlocking vertical hole (63) vertically disposed at the end of the clearance hole (311) away from the positioning hole (43) and communicating with the clearance hole (311). The lower end of the unlocking vertical hole (63) is connected to an unlocking horizontal hole (64) that is perpendicular to it. The unlocking horizontal hole (64) is perpendicular to the clearance hole (311), and its end away from the unlocking vertical hole (63) penetrates the side wall of the fixing pin (3) and is located below the U-shaped sleeve (51). The positioning rod (6) is away from the positioning pin (43). One end of the positioning hole (43) is connected to an unlocking rope (65). The end of the unlocking rope (65) away from the positioning rod (6) passes through the clearance hole (311), the unlocking vertical hole (63), and the unlocking horizontal hole (64) in sequence and is connected to a pull rod (66) located outside the unlocking horizontal hole (64). The connection between the clearance hole (311) and the unlocking vertical hole (63) and the connection between the unlocking vertical hole (63) and the unlocking horizontal hole (64) are provided with a reversing wheel (67) that cooperates with the unlocking rope (65).

7. The connector of claim 1, wherein: The upper end of the insert (32) is higher than the upper end of the slot (13). The sidewalls around the insert (32) are provided with locking grooves (321) that are perpendicular to it and located above the slot (13). The upper end of the housing (1) is provided with guide grooves (14) that correspond to and cooperate with a number of locking grooves (321). The locking device (33) includes a guide block (34) that is slidably installed in the guide groove (14) along the length direction of the corresponding guide groove (14). A locking spring (35) is connected between the guide block (34) and the end of the guide groove (14) away from the insert (32). A locking rod (36) is hinged to the upper end of the guide block (34). The hinge axis of the locking rod (36) is set horizontally and perpendicular to the length direction of its corresponding guide groove (14). When the locking rod (36) is rotated to the horizontal state, its movable end is inserted into the corresponding locking groove (321).

8. The connector of claim 1, wherein: The bottom of the plug (32) is connected to a connecting pin (322), and the bottom of the slot (13) is provided with a connecting hole (12) that mates with the connecting pin (322). The connecting hole (12) connects the slot (13) and the plug interface (11), and the end of the connecting pin (322) away from the plug (32) is located inside the plug interface (11).

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