Electrical connection device

Abstract

An electrical connecting device includes a wire end connector, a board end connector and a resilient fastener. The wire end connector includes an insulating housing, a circuit board, a cable, a locking member and a pull strap. The insulating housing has two protective walls, each of which has an anti-extraction portion. The locking member has a holding section, a locking section and a connecting section. The board end connector includes an insulating seat, a plurality of terminals and a metal shell. The metal shell has two flaps. The resilient fastener has two pivot rods respectively pivoted to the flaps and a pressing rod for pressing against the protective walls. When the wire end connector is connected to the board end connector, the circuit board is inserted into the slot, the protruding portion is buckled to the buckle hole, and the pressing rod can pass through the anti-extraction portion to press against the protective walls.

Description

Technical Field

[0001] This invention relates to an electrical connection device, and more particularly to an electrical connection device having a locking and unlocking structure. Background Technology

[0002] In existing electrical connection devices, a single-line connector typically engages with and locks onto a board-end connector via two protrusions of a locking member that respectively snap into two holes. Due to manufacturing and assembly tolerances, a gap may form between the protrusion and the board-end connector when each protrusion engages with its corresponding hole and a boundary of the board-end connector defining the hole. This gap can cause the single-line connector to easily wobble or even rotate relative to the board-end connector, resulting in poor stability of the connection and affecting the stability of electrical signal transmission. For example, the connector disclosed in Chinese Patent Publication No. CN207038836U. Summary of the Invention

[0003] Therefore, one object of the present invention is to provide an electrical connection device that can overcome at least one disadvantage of the prior art.

[0004] Therefore, the electrical connection device of the present invention includes a wire-end connector, a board-end connector, and a resilient fastener.

[0005] The wire-end connector includes an insulating housing, a circuit board, at least one cable, a locking member, and a pull strap. The insulating housing forms a retaining groove and has two protective walls located on opposite sides of the retaining groove, each protective wall having an anti-detachment portion. The circuit board is disposed on the insulating housing. The cable is electrically connected to one side of the circuit board. The locking member has a retaining section disposed in the retaining groove, a locking section extending from the retaining section and spaced from the insulating housing, and a connecting section extending from the locking section, the locking section having a protrusion. The pull strap has a connecting strap body connected to the connecting section of the locking member and a gripping strap body. The board-end connector includes an insulating base, a plurality of terminals, and a metal housing. The insulating base forms a slot for inserting the circuit board. The plurality of terminals are disposed in the insulating base, each terminal having a contact portion extending into the slot. The metal housing is fitted onto the insulating base. One side of the metal housing has two outwardly extending, parallel folding plates and a snap-fit ​​hole for the protrusion to engage. The resilient fastener has two pivot rods respectively pivotally connected to multiple folding plates, and a clamping rod connected to multiple pivot rods for clamping onto multiple protective walls. When the wire connector mates with the board connector, the circuit board is inserted into the slot, the protrusion engages with the snap-fit ​​hole, and the clamping rod of the resilient fastener can pass over the anti-disengagement part to clamp onto the multiple protective walls.

[0006] In some embodiments, each of the folding plates is formed with a pivot hole, and each of the pivot rods has a pivot rod body pivotally connected to the pivot hole of the corresponding folding plate.

[0007] In some embodiments, the insulating base has two stops, each of which is used to prevent the pivot body of the corresponding pivot rod from disengaging from the corresponding pivot hole.

[0008] In some embodiments, each stop has a stop block located outside the corresponding folding plate, and each pivot rod also has a side rod connected between the clamping rod and the pivot rod body. The side rod is located between the corresponding folding plate and the corresponding stop block. The stop block is positioned corresponding to the corresponding pivot rod body and is used to stop the outside of the corresponding side rod.

[0009] In some embodiments, each of the stops further includes a limiting block extending inward from the inner side of the stop block body, the limiting block being positioned on the rotation path of the corresponding side rod to stop the corresponding side rod.

[0010] In some embodiments, the insulating base has two stops, each of which has a limiting block on the rotation path of the corresponding pivot rod to stop the corresponding pivot rod.

[0011] In some embodiments, the insulating base forms a mounting space between a plurality of stops, the mounting space accommodating a plurality of folding plates and a portion of each of the pivot rods.

[0012] In some embodiments, the insulating housing has a main body portion having an end face with an opening formed therein, and the circuit board is disposed on the main body portion and extends partially out of the opening.

[0013] In some embodiments, the insulating housing also has a mating portion extending from the end face, and a mating space is formed between the metal housing and the insulating base for the mating portion to mate.

[0014] In some embodiments, the insulating housing also has two sides extending from the end face, each side forming a gap with the mating portion for inserting the metal housing.

[0015] In some embodiments, the retaining section of the locking member has an end, and the insulating housing also has an elastic retaining arm disposed in the retaining groove, the elastic retaining arm retaining the end to prevent the locking member from disengaging from the insulating housing.

[0016] In some embodiments, the board-end connector further includes an insulating body disposed within the insulating base for multiple terminals to pass through.

[0017] In some embodiments, the wire connector includes multiple cables electrically connected to opposite sides of the circuit board, and a cover covering the electrical connection points between the circuit board and the multiple cables.

[0018] In some embodiments, each of the protective walls also has a wall end face for the clamping rod to clamp, and the anti-detachment part is a protruding structure on the wall end face to block the clamping rod clamping on the wall end face.

[0019] In some embodiments, each of the protective walls also has a wall surface perpendicular to the wall end face, the anti-detachment portion is adjacent to the wall surface and has an arcuate surface connecting the wall end face and the wall surface, the arcuate surface being configured to contact the clamping rod and allow the clamping rod to slide thereon so that the clamping rod can pass over the anti-detachment portion and clamp onto the wall end face.

[0020] In some embodiments, the protruding structure is semi-cylindrical and its axial direction extends along the width of the corresponding protective wall.

[0021] In some implementations, the pull strap is configured to push the buckle away from multiple protective walls by tension when pulled.

[0022] In some embodiments, the pull strap is configured such that when pulled, it can disengage the buckle bar of the resilient buckle from the plurality of protective walls and disengage the protrusion of the locking member from the buckle hole.

[0023] In some embodiments, the elastic buckle is rotatable relative to the plate end connector between a locked position and an unlocked position. When the elastic buckle is in the locked position, it is upright, the clamping bar applies elastic force to press against multiple protective walls and is blocked by the anti-detachment part, and the connecting strap connected to the gripping strap is bent. When the elastic buckle is in the unlocked position, it is tilted, the clamping bar moves away from the multiple protective walls, and the connecting strap is upright.

[0024] The present invention has at least the following advantages: The elastic buckle applies elastic force to multiple wall end faces through its clamping rod, allowing the wire end connector to be tightly and securely connected to the board end connector. The elastic buckle and locking element can be unlocked with a single pull of the pull strap, thereby improving ease of operation. The design of multiple stops prevents the multiple pivot rods of the elastic buckle from disengaging from the multiple pivot holes, improving connection stability and limiting the elastic buckle to the unlocked position. The design of multiple anti-detachment parts supports the clamping rod of the elastic buckle, causing it to deform and accumulating restoring elastic force, and also stops the clamping rod, ensuring the elastic buckle is securely positioned in the locking position. Attached Figure Description

[0025] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the accompanying drawings, wherein:

[0026] Figure 1 This is an exploded perspective view of the first embodiment of the electrical connection device of the present invention, illustrating the connection relationship between a wire-end connector, a board-end connector and a resilient fastener.

[0027] Figure 2 This is an exploded perspective view of the wire-end connector of the first embodiment;

[0028] Figure 3 This is a bottom view of the wire connector of the first embodiment;

[0029] Figure 4 This is an exploded perspective view of the wire connector and the elastic fastener of the first embodiment;

[0030] Figure 5 This is a top view of the wire connector and the elastic fastener of the first embodiment;

[0031] Figure 6 It is along Figure 5 A cross-sectional view taken by line VI-VI in the figure shows the resilient fastener in an unlocked position;

[0032] Figure 7 This is an incomplete cross-sectional view of the first embodiment;

[0033] Figure 8 This is an incomplete cross-sectional view of the first embodiment;

[0034] Figure 9 This is an incomplete cross-sectional view of the first embodiment, illustrating the resilient fastener in a locking position;

[0035] Figure 10 This is a front view of the first embodiment;

[0036] Figure 11 This is an incomplete cross-sectional view of the first embodiment, illustrating how a pull strap unlocks the elastic buckle;

[0037] Figure 12 This is an incomplete cross-sectional view of the first embodiment, illustrating that the pull strap drives a locking fastener to unlock;

[0038] Figure 13 This is an incomplete exploded perspective view of the wire-end connector of the second embodiment of the electrical connection device of the present invention; and

[0039] Figure 14 This is an incomplete perspective view of the wire-end connector of the second embodiment.

[0040] The attached figures are labeled as follows:

[0041] 100: Electrical connection device

[0042] 1: Wire connector

[0043] 11: Insulating housing

[0044] 110: Main body

[0045] 111: Docking Section

[0046] 112: Protective Wall

[0047] 113: Side

[0048] 114: End face

[0049] 115: Opening

[0050] 116: Holding groove

[0051] 117:Wall

[0052] 118: Wall end face

[0053] 119: Wall surface

[0054] 120: Anti-hair loss section

[0055] 121: Arc surface

[0056] 122: Gap

[0057] 123: Flexible buckle arm

[0058] 13: Circuit board

[0059] 14: Cables

[0060] 15: Encapsulation

[0061] 16: Locking fasteners

[0062] 161: Holding Section

[0063] 162: Locking section

[0064] 163: Connecting segment

[0065] 164:Protrusion

[0066] 165: Connecting hole

[0067] 166:End

[0068] 17: Pull strap

[0069] 171: Connecting belt

[0070] 172: Grip belt body

[0071] 173: Connecting part

[0072] 174: Extension

[0073] 2: Board-end connector

[0074] 21: Insulating base

[0075] 210: base body

[0076] 211: Enclosing wall

[0077] 212: Mounting slot

[0078] 213: Installation space

[0079] 214: Stop

[0080] 215: Block

[0081] 216: Limiting Block

[0082] 217: Slot

[0083] 22: Insulating body

[0084] 23:Terminal

[0085] 231:Contact Department

[0086] 24: Metal casing

[0087] 241: Surrounding board

[0088] 242: Insert board

[0089] 243: folding plate

[0090] 244: Buckle hole

[0091] 245: Pivot hole

[0092] 25: Docking Space

[0093] 3: Flexible fasteners

[0094] 31: Pivot rod

[0095] 311: Side rod

[0096] 312: Pivoted rod

[0097] 32: Clamping bar

[0098] M: Docking direction

[0099] P: Pulling direction

[0100] R1: First rotation direction

[0101] R2: Second rotation direction

[0102] D1: First Direction

[0103] D2: Second Direction

[0104] D3: Third direction Detailed Implementation

[0105] Before the invention is described in detail, it should be noted that similar elements are represented by the same numbers in the following description.

[0106] See Figure 1 The first embodiment of the electrical connection device 100 of the present invention includes a wire end connector 1, a board end connector 2, and an elastic fastener 3.

[0107] For ease of subsequent explanation, a first direction D1, a second direction D2 perpendicular to the first direction D1, and a third direction D3 perpendicular to both the first direction D1 and the second direction D2 are defined for the electrical connection device 100. In this first embodiment, the first direction D1 is taken as the front-back direction. Figure 1 The arrow points forward, and the opposite direction points backward. The second direction, D2, uses the left-right direction as an example. Figure 1 The arrow points left, and the opposite direction is right. This third direction D3 uses the up-down direction as an example. Figure 1 The direction the arrow points is up, and the opposite direction is down.

[0108] See Figure 1 , Figure 2 and Figure 3The connector 1 includes an insulating housing 11, a circuit board 13, multiple cables 14, a sheath 15, a locking member 16, and a pull strap 17. The insulating housing 11 has a main body 110, a mating portion 111, two protective walls 112, and two side portions 113. The main body 110 has a downward-facing end face 114. The end face 114 forms an opening 115. The mating portion 111 extends downward from the end face 114. The mating portion 111 is wall-shaped and surrounds the opening 115. The front side of the main body 110 and the front side of the mating portion 111 together define a retaining groove 116 for receiving the locking member 16, and a wall surface 117 located behind the retaining groove 116. The multiple protective walls 112 extend forward from the front side of the main body 110 and are located on opposite sides of the retaining groove 116. Each protective wall 112 extends in the width direction along the second direction D2. Each protective wall 112 has an upward-facing wall end face 118, a forward-facing wall surface 119 perpendicular to the wall end face 118, and an anti-detachment portion 120 disposed on the wall end face 118. The anti-detachment portion 120 is a protruding structure protruding from the wall end face 118. In this first embodiment, the anti-detachment portion 120 is adjacent to the wall surface 119 and has an arcuate surface 121 connecting the wall end face 118 and the wall surface 119. Specifically, the protruding structure is semi-cylindrical and its axis extends in the width direction of the corresponding protective wall 112. A plurality of side portions 113 extend downward from the end face 114 of the main body portion 110 and are respectively located on opposite sides of the mating portion 111. A gap 122 is formed between each side portion 113 and the mating portion 111.

[0109] The circuit board 13 is disposed on the main body 110 of the insulating housing 11 and partially extends out of the opening 115. Multiple cables 14 are electrically connected to opposite sides of the circuit board 13. A cover 15 covers the electrical connection points between the circuit board 13 and the multiple cables 14 and is located within the main body 110 of the insulating housing 11 to prevent the electrical connection points between the circuit board 13 and the multiple cables 14 from being exposed, thus providing protection. The cover 15 is formed, for example, at the electrical connection points between the circuit board 13 and the multiple cables 14 by insert molding.

[0110] It should be noted that in other embodiments of this first embodiment, the number of multiple cables 14 may be reduced as needed and electrically connected only to the same side of the circuit board 13, or the number of multiple cables 14 may be reduced to one and electrically connected to one side of the circuit board 13, not limited to the manner disclosed in this first embodiment.

[0111] The locking member 16 has a retaining section 161, a locking section 162, and a connecting section 163. The retaining section 161 is disposed within the retaining groove 116 of the insulating housing 11, and the retaining section 161 is secured to the insulating housing 11 by means of interference fit on opposite sides. The locking section 162 extends upward from the retaining section 161 and is spaced apart from the wall surface 117 of the insulating housing 11. The locking section 162 is bendable relative to the retaining section 161 and has two protrusions 164 located on the left and right sides respectively and protruding forward. The connecting section 163 extends upward from the top of the locking section 162 and forms a connecting hole 165. Because the locking section 162 can be bent relative to the retaining section 161 to move away from or towards the wall surface 117, the locking member 16 can switch between a locked state and an unlocked state.

[0112] The pull strap 17 has a connecting strap body 171 and a gripping strap body 172. The connecting strap body 171 has a ring-shaped connecting portion 173 and an extension portion 174 connecting the connecting portion 173 and the gripping strap body 172. The connecting portion 173 passes through the connecting hole 165 and is sleeved on the connecting segment 163 and can pivot relative to the connecting segment 163. The gripping strap body 172 is used for the user to hold and pull. When the user pulls the pull strap 17 upward through the gripping strap body 172, the connecting strap body 171 pulls the connecting segment 163, causing the locking segment 162 to bend relative to the retaining segment 161 and approach the wall surface 117, so that the locking member 16 changes from the locked state to the unlocked state.

[0113] See Figure 1 , Figure 4 , Figure 5 and Figure 6 The board-end connector 2 includes an insulating base 21, an insulating body 22, a plurality of terminals 23, and a metal housing 24. The insulating base 21 has a body 210 and a surrounding wall 211 extending upward from the body 210. The body 210 forms a mounting groove 212 and a mounting space 213 spaced in front of the mounting groove 212. The body 210 has two stops 214 located on opposite sides of the mounting space 213. Each stop 214 has a stop block 215 and a limiting block 216 extending inward from the inner side of the stop block 215 and adjacent to its front end. The surrounding wall 211 forms a connection to the top of the mounting groove 212 for the circuit board 13 (e.g., Figure 2 (As shown) Slot 217 to which it is inserted.

[0114] The insulating body 22 is disposed within the mounting groove 212 of the insulating base 21. A plurality of terminals 23 are disposed through the insulating body 22, each of the terminals 23 having a contact portion 231 extending into the slot 217.

[0115] The metal casing 24 is fitted onto the insulating base 21 and has a surrounding plate 241, an insert plate 242, and two folding plates 243. The surrounding plate 241 is inserted into the base body 210 of the insulating base 21 and surrounds the outer perimeter of the enclosure 211. A mating space 25 is formed between the surrounding plate 241 and the enclosure 211 for mating the mating portion 111 of the wire connector 1. Two spaced-apart snap holes 244 are formed on the front side of the surrounding plate 241 and communicate with the mating space 25. The snap holes 244 are used for snapping on the protrusions 164. The insert plate 242 extends downward from the front side of the surrounding plate 241 and is inserted into the mounting space 213. The folding plates 243 extend outward and forward from the left and right sides of the insert plate 242 and are parallel to each other. The folding plates 243 are inserted into the mounting space 213 and are located inside the stops 214. Each of the folding plates 243 is formed with a pivot hole 245 extending along the second direction D2.

[0116] The elastic fastener 3 is integrally formed from a metal rod through bending and has two pivot rods 31 and a clamping rod 32. A portion of each pivot rod 31 is accommodated within the mounting space 213 of the plate connector 2. Each pivot rod 31 has a side rod body 311 between the corresponding stop 214 and the corresponding folding plate 243, and a pivot rod body 312 extending inward from the bottom end of the side rod body 311. The pivot rod body 312 is rotatably pivotally connected to the pivot hole 245 of the corresponding folding plate 243. The clamping rod 32 is connected to the top ends of the multiple side rod bodies 311 of the multiple pivot rods 31 to clamp onto the multiple wall end faces 118 of the multiple protective walls 112 of the wire connector 1.

[0117] See Figure 1 and Figure 5 By positioning the side rod 311 of each pivot rod 31 between the stop block 215 of the corresponding stop block 214 and the corresponding folding plate 243, and by designing the stop block 215 to stop on the outside of the corresponding side rod 311 and corresponding to the position of the corresponding pivot rod 312, the pivot rod 312 of the corresponding pivot rod 31 can be prevented from moving outward along the second direction D2 and disengaging from the corresponding pivot hole 245. This allows the elastic fastener 3 to be securely pivotally connected to the plurality of folding plates 243 of the plate end connector 2.

[0118] See Figure 1 and Figure 6 The elastic fastener 3 can be in an unlocked position relative to the plate end connector 2 with the multiple pivot rods 312 as the axis (e.g., Figure 6 (as shown) and a latch position (as shown) Figure 9Rotating between (as shown). Since the limiting block 216 of each stop 214 is located on the rotation path of the side rod 311 of the corresponding pivot rod 31, when the side rod 311 of each pivot rod 31 obliquely abuts against the limiting block 216 of the corresponding stop 214, the side rod 311 is blocked by the limiting block 216 and cannot rotate, so that the elastic buckle 3 is limited to the inclined unlocking position.

[0119] The following will provide a detailed description of the assembly and disassembly methods for the electrical connection device 100:

[0120] See Figure 1 and Figure 7 To assemble the wire connector 1 onto the board connector 2, first align the circuit board 13 and the mating portion 111 with the slot 217 and the mating space 25, respectively. Then, move the wire connector 1 downwards along a mating direction M parallel to the third direction D3 and mat it onto the board connector 2. Since the elastic fastener 3 is tilted in the unlocked position, the clamping rod 32 will not obstruct the movement path of the wire connector 1, allowing the wire connector 1 to smoothly mat with the board connector 2.

[0121] When the wire connector 1 mates with the board connector 2, the circuit board 13 and the mating portion 111 are respectively inserted into the slot 217 and the mating space 25. The surrounding plate 241 of the metal housing 24 is inserted into the multiple gaps 122 of the insulating housing 11. The circuit board 13 is electrically connected to the multiple contacts 231 of the multiple terminals 23. The multiple protrusions 164 of the locking member 16 are respectively engaged with the multiple fastening holes 244 of the metal housing 24.

[0122] After the connector 1 is mated, the extension 174 of the pull strap 17 is pressed against the wall 117 of the insulating housing 11. The extension 174 causes the connecting part 173 to rotate relative to the connecting section 163 of the locking member 16 along a first rotation direction R1 and bends relative to the connecting part 173, so that the connecting strap body 171 is bent. This prevents the connecting part 173 from blocking the rotation path of the elastic buckle 3.

[0123] See Figure 7 and Figure 8The elastic fastener 3 is rotated along the first rotation direction R1, causing it to rotate relative to the plate end connector 2 and the wire end connector 1 mating with the plate end connector 2. Since the arc surface 121 of each anti-detachment part 120 is configured to contact the clamping rod 32 of the elastic fastener 3 and allow the clamping rod 32 to slide thereon, so that the clamping rod 32 can pass over the anti-detachment part 120, when the clamping rod 32 of the elastic fastener 3 rotates to contact the arc surface 121 of each anti-detachment part 120, the force exerted by the arc surface 121 on the clamping rod 32 will push the clamping rod 32 outward, causing the clamping rod 32 to bend and deform relative to the multiple side rods 311 of the multiple pivot rods 31 and accumulate restoring elastic force. As the clamping rod 32 slides along the arc surface 121 and gets closer to the top of the arc surface 121, the bending deformation of the clamping rod 32 becomes greater.

[0124] See Figure 9 and Figure 10 When the clamping rod 32 of the elastic fastener 3 passes over the arc surface 121 of each of the anti-detachment parts 120, the elastic fastener 3 is upright. The clamping rod 32 rebounds through the accumulated restoring elastic force and applies elastic force to clamp onto the multiple wall end faces 118 of the multiple protective walls 112, so that the elastic fastener 3 is positioned in the locking position. Since the elastic fastener 3 is upright in the locking position, the elastic force applied by the clamping rod 32 to the multiple wall end faces 118 is equivalent to a downward pressure perpendicular to the multiple wall end faces 118. Therefore, the influence of the manufacturing tolerance and assembly tolerance of the wire connector 1 and the board connector 2 can be overcome, so that the wire connector 1 can be tightly and firmly connected to the board connector 2, thereby maintaining the stability of electrical signal transmission between the two.

[0125] Each of the anti-detachment parts 120 is a protruding structure extending from the wall end face 118, which allows the anti-detachment part 120 to support the buckle rod 32 and prevent it from deforming, and also to stop the buckle rod 32 from moving. Thus, the elastic buckle 3 can be securely positioned in the locking position, and the buckle rod 32 can be prevented from sliding on the wall end face 118 and detaching from it due to vibration or improper external force.

[0126] See Figure 9 and Figure 11 To detach the wire connector 1 from the board connector 2, follow a direction M opposite to the mating direction (e.g., Figure 7 As shown, the gripping strap 172 of the pull strap 17 is pulled upward in the pulling direction P. When the gripping strap 172 is pulled upward, it will cause the connecting strap 171 to move upward, so that the extension 174 drives the connecting part 173 in a direction opposite to the first rotation direction R1 (as shown). Figure 8The second rotation direction R2 (as shown) is the rotation relative to the connecting section 163 of the locking member 16. The tension generated during the pulling of the connecting section 173 by the extension 174 causes the connecting section 173 or the extension 174 of the connecting strap 171 to contact the buckle 32, pushing the buckle 32 towards the multiple anti-detachment parts 120, thereby causing the elastic buckle 3 to rotate along the second rotation direction R2. Thus, the buckle 32 slides along the arc surface 121 of each anti-detachment part 120. When the buckle 32 passes the arc surface 121 of each anti-detachment part 120, the buckle 32 separates from the multiple protective walls 112, releasing the locking of the multiple protective walls 112.

[0127] See Figure 11 and Figure 12 When the extension 174 is as Figure 11 When the connecting part 173 is straightened so that the connecting strap 171 is upright, the thrust exerted by the connecting strap 171 on the buckle 32 will cause the elastic buckle 3 to continue rotating along the second rotation direction R2, so that the elastic buckle 3 returns to its original position. Figure 12 The unlock location is shown.

[0128] See Figure 1 and Figure 12 As the gripping strap 172 continues to be pulled upwards, causing the connecting strap 171 to move upwards, the connecting strap 171, through the connecting section 163, causes the locking section 162 to bend relative to the retaining section 161 to approach the wall surface 117, thus changing the locking member 16 to the unlocked state where the multiple protrusions 164 are respectively disengaged from the multiple buckles 244. Subsequently, the pull strap 17 can pull the wire connector 1 upwards to detach it from the board connector 2.

[0129] See Figure 8 , Figure 9 and Figure 11 By arranging each anti-detachment part 120 adjacent to the wall surface 119 and the arc surface 121 connecting the wall end face 118 and the wall surface 119, the clamping rod 32 can be smoothly supported and deformed by the anti-detachment part 120 and accumulate restoring elastic force before the elastic fastener 3 rotates to near the locking position. This improves the smoothness of the elastic fastener 3's rotation and sliding relative to the multiple anti-detachment parts 120, and ensures that the restoring elastic force accumulated by the clamping rod 32 when the elastic fastener 3 rotates to the locking position can vertically press down on the multiple wall end faces 118, thereby improving the stability of the connection between the wire connector 1 and the board connector 2.

[0130] The protruding structure is semi-cylindrical, and its axis extends along the width direction of the corresponding protective wall 112, resulting in a large area of ​​the arc surface 121 of the anti-detachment part 120, which in turn increases the contact area between the anti-detachment part 120 and the clamping rod 32. This improves the smoothness of the anti-detachment part 120 supporting the clamping rod 32 and causing it to deform, and also enhances the stopping effect of the anti-detachment part 120 in preventing the clamping rod 32 from deforming.

[0131] It should be noted that in other embodiments of this first embodiment, each of the anti-slip portion 120 may also be hemispherical or arc-shaped protrusions, and is not limited to a semi-cylindrical shape. In addition, the number of the plurality of protrusions 164 and the plurality of fastening holes 244 may each be set to one as needed, and is not limited to the number disclosed in this first embodiment.

[0132] See Figure 13 and Figure 14 The second embodiment of the electrical connection device 100 of the present invention has a generally similar overall structure to the first embodiment, except that the wire end connector 1 is different.

[0133] The retaining section 161 of the locking member 16 has an upward-facing end 166. The insulating housing 11 also has an elastic retaining arm 123 disposed within the retaining groove 116. The elastic retaining arm 123 holds the end 166 of the retaining section 161 to prevent the locking member 16 from moving upward and disengaging from the retaining groove 116 of the insulating housing 11. This further enhances the stability of the locking member 16 in the retaining groove 116.

[0134] In summary, the electrical connection device 100 of each embodiment applies elastic force to the multiple wall end faces 118 through the snapping rod 32 of the elastic buckle 3, so that the wire end connector 1 can be tightly and securely connected to the board end connector 2. The elastic buckle 3 and the locking member 16 can be unlocked by pulling the pull strap 17 in one operation step, thereby improving the convenience of operation and use. The design of multiple stops 214 can prevent the multiple pivot rods 312 of the elastic buckle 3 from disengaging from the multiple pivot holes 245 respectively, thereby improving the connection stability, and can also limit the elastic buckle 3 to the unlocked position. The design of multiple anti-detachment parts 120 can support the snapping rod 32 of the elastic buckle 3, causing it to deform and accumulate the restoring elastic force, and can also stop the snapping rod 32, thereby securing the elastic buckle 3 in the locking position. Therefore, the purpose of the present invention is indeed achieved.

[0135] However, the above description is merely an embodiment of the present invention and should not be construed as limiting the scope of the present invention. Any simple equivalent changes and modifications made in accordance with the claims and description of the present invention shall still fall within the scope of the present invention.

Claims

1. An electrical connection device, comprising: One-wire connector, including: An insulating housing having a retaining groove, the insulating housing having two protective walls located on opposite sides of the retaining groove, each of the protective walls having an anti-detachment part; A circuit board is disposed within the insulating housing; At least one cable is electrically connected to one side of the circuit board; A locking member having a retaining section disposed in the retaining groove, a locking section extending from the retaining section and spaced apart from the insulating housing, and a connecting section extending from the locking section, the locking section having a protrusion; and A pull strap, having a connecting strap body connected to the connecting segment of the locking member, and a gripping strap body; One-board connector, including: An insulating base is formed to create a slot for inserting the circuit board; Multiple terminals are disposed on the insulating base, each terminal having a contact portion extending into the slot; and A metal casing is fitted onto the insulating base. One side of the metal casing has two outwardly extending and parallel folding plates and a snap hole for the protrusion to be fastened. An elastic fastener is pivotally connected to the two folded plates of the plate end connector and has two pivot rods respectively pivotally connected to the two folded plates, and a clamping rod connected to the two pivot rods for clamping onto the two protective walls; When the wire connector is mated to the board connector, the circuit board is inserted into the slot, the protrusion is snapped into the buckle hole, and the buckling rod of the elastic buckle can pass over the anti-disengagement part to buckle against the two protective walls. When the pull strap is pulled, the tension of the pull strap first pushes the buckle bar of the elastic buckle away from the anti-detachment parts of the two protective walls, and then drives the locking member to make the protrusion disengage from the buckle hole.

2. The electrical connection device as claimed in claim 1, wherein, Each of the folding plates has a pivot hole, and each of the pivot rods has a pivot rod body pivotally connected to the pivot hole of the corresponding folding plate.

3. The electrical connection device as claimed in claim 2, wherein, The insulating base has two stops, each of which is used to prevent the pivot body of the corresponding pivot rod from disengaging from the corresponding pivot hole.

4. The electrical connection device as claimed in claim 3, wherein, Each of the stops has a stop block located outside the corresponding folding plate, and each of the pivot rods also has a side rod connected between the clamping rod and the pivot rod body. The side rod is located between the corresponding folding plate and the corresponding stop block. The stop block is positioned corresponding to the corresponding pivot rod body and is used to stop the outside of the corresponding side rod.

5. The electrical connection device as claimed in claim 4, wherein, Each of the stops also has a limiting block extending inward from the inside of the stop block body, the limiting block being positioned on the rotation path of the corresponding side rod to stop the corresponding side rod.

6. The electrical connection device as claimed in claim 1, wherein, The insulating base has two stops, each of which has a limiting block on the rotation path of the corresponding pivot rod to stop the corresponding pivot rod.

7. The electrical connection device according to any one of claims 3 to 6, wherein, The insulating base forms an installation space between the two stops, which accommodates the two folding plates and a portion of each of the pivot rods.

8. The electrical connection device as claimed in claim 1, wherein, The insulating housing has a main body portion with an end face forming an opening, and the circuit board is disposed on the main body portion and extends partially out of the opening.

9. The electrical connection device as claimed in claim 8, wherein, The insulating housing also has a mating portion extending from the end face, and a mating space is formed between the metal housing and the insulating base for the mating portion to mate.

10. The electrical connection device as claimed in claim 9, wherein, The insulating housing also has two sides extending from the end face, each side forming a gap with the mating portion for inserting the metal outer shell.

11. The electrical connection device as claimed in claim 1, wherein, The retaining section of the locking member has an end, and the insulating housing also has an elastic retaining arm disposed in the retaining groove, which retains the end to prevent the locking member from detaching from the insulating housing.

12. The electrical connection device as claimed in claim 1, wherein, The board-end connector also includes an insulating body disposed within the insulating base for the plurality of said terminals to pass through.

13. The electrical connection device as claimed in claim 1, wherein, The connector includes multiple cables electrically connected to opposite sides of the circuit board, and a cover covering the electrical connection points between the circuit board and the multiple cables.

14. The electrical connection device as claimed in claim 1, wherein, Each of the protective walls also has a wall end face for the clamping rod to clamp, and the anti-detachment part is a protruding structure on the wall end face to block the clamping rod clamping on the wall end face.

15. The electrical connection device as claimed in claim 14, wherein, Each of the protective walls also has a wall surface perpendicular to the wall end face, the anti-detachment part is adjacent to the wall surface and has an arc surface connecting the wall end face and the wall surface, the arc surface is configured to contact the clamping bar and allow the clamping bar to slide thereon so that the clamping bar can pass over the anti-detachment part and clamp onto the wall end face.

16. The electrical connection device as claimed in claim 15, wherein, The protruding structure is semi-cylindrical and its axis extends along the width of the corresponding protective wall.

17. The electrical connection device as claimed in any one of claims 1, 14, 15, and 16, wherein, The elastic buckle can rotate relative to the plate end connector between a locked position and an unlocked position. When the elastic buckle is in the locked position, it is upright, the buckling rod applies elastic force to press against the two protective walls and is blocked by the anti-detachment part, and the connecting strap connected to the grip strap is bent. When the elastic buckle is in the unlocked position, it is tilted, the buckling rod moves away from the two protective walls, and the connecting strap is upright.

Images