TWI819798B - Electrical connection device - Google Patents

Abstract

An electrical connection device includes a wire end connector, a board end connector and an elastic buckle. The wire end connector includes an insulating shell, a circuit board, a cable, a locking component and a drawstring. The insulating shell has two protective walls, each of which has an anti-separation part. The locking component has a holding section, a locking section and a connecting section. The board connector includes an insulating base, a plurality of terminals and a metal shell. The metal housing has two flaps. The elastic buckle has two pivot rods respectively pivoted to the folding plates and a buckling rod for buckling the protective walls. When the wire end connector is docked with the board end connector, the circuit board is plugged into the slot, the protrusion is buckled in the button hole, and the buckling rod can cross the anti-disengagement part to buckle on the protection wall.

Description

Electrical connection device

The present invention relates to an electrical connection device, and in particular, to an electrical connection device with a locking and unlocking structure.

The first-line connector of the existing electrical connection device usually locks into two button holes of a board-end connector through two protrusions of a locking component, so as to be combined and locked on the board-side connector. The wire end connector and the board end connector will be affected by manufacturing tolerances and assembly tolerances, so that when each protrusion is snapped into the corresponding button hole, it will define the button hole with a boundary of the board end connector. The surrounding surface creates a gap. This gap will cause the wire-end connector to easily shake or even rotate relative to the board-end connector, causing the wire-end connector to have poor stability when combined with the board-end connector, thereby affecting the electrical signal transmission. Stability. For example, the connector disclosed in China Patent Announcement No. CN207038836U.

Therefore, it is an object of the present invention to provide an electrical connection device capable of overcoming at least one disadvantage of the prior art.

Therefore, the electrical connection device of the present invention includes a wire end connector, a board end connector, and an elastic buckle.

The wire end connector includes an insulating shell, a circuit board, at least one cable, a locking component, and a drawstring. The insulating housing is formed with a holding groove, and the insulating housing has two protective walls respectively located on opposite sides of the holding groove, and each of the protective walls has an anti-separation part. The circuit board is arranged on the insulating shell. The cable is electrically connected to one side of the circuit board. The locking component has a holding section arranged in the holding groove, a locking section extending from the holding section and spaced apart from the insulating shell, and a connecting section extending from the locking section. The locking section The buckle section has a protrusion. The drawstring has a connecting strap body connected to the connecting section of the locking component, and a holding strap body. The board connector includes an insulating base, a plurality of terminals, and a metal shell. The insulating seat forms a slot for plugging the circuit board. The terminals are arranged on the insulating base, and each terminal has a contact portion extending into the slot. The metal shell is set on the insulating base. One side of the metal shell has two outwardly extending and parallel folding plates, and a button hole for the protrusion to buckle. The elastic buckle has two pivot rods respectively pivoted to the folding plates, and a buckling rod connected to the pivot rods for buckling to the protective walls. When the wire end connector is docked with the board end connector, the circuit board is inserted into the slot, the protrusion is buckled in the button hole, and the buckling rod of the elastic buckle can pass over the anti-removal part to withheld from such protective walls.

In some implementations, each of the folding plates is formed with a pivot hole, and each of the pivot rods has a pivot rod body that is pivoted to the pivot hole of the corresponding folding plate.

In some implementations, the insulating seat has two stoppers, each of which is used to prevent the corresponding pivot rod body of the pivot rod from being separated from the corresponding pivot hole.

In some embodiments, each of the stop blocks has a stop block located outside the corresponding folding plate, and each of the pivot rods also has a connecting rod connected between the buckling rod and the pivot rod body. The side rod body is between the corresponding folding plate and the corresponding blocking block. The blocking block corresponds to the position of the corresponding pivot rod body and is used to block the corresponding side rod body. Outside of the rod.

In some embodiments, each stop block also has a limit block extending inward from the inside of the stop block, and the limit block is located on the rotation path of the corresponding side rod body to block Stop the corresponding side rod body.

In some embodiments, the insulating seat has two stops, each of which has a limiting block on the rotation path of the corresponding pivot rod to block the corresponding pivot rod. .

In some implementations, the insulating seat forms an installation space between the stops, and the installation space is for accommodating the folding plates and a portion of each of the pivot rods.

In some embodiments, the insulating housing has a main body portion, the main body portion has an end surface, and the end surface forms an opening. The circuit board is disposed on the main body portion and partially extends out of the opening.

In some embodiments, the insulating housing further has a docking portion extending from the end surface, and a docking space is formed between the metal shell and the insulating seat for the docking portion to dock.

In some embodiments, the insulating housing further has two side portions extending from the end surface, and a gap is formed between each side portion and the mating portion for the metal housing to be inserted.

In some embodiments, the retaining section of the locking component has an end, and the insulating housing also has an elastic retaining arm disposed in the retaining groove, and the elastic retaining arm retains the end to prevent The locking component is separated from the insulating shell.

In some embodiments, the board-end connector further includes an insulating body disposed in the insulating base and for the terminals to pass through.

In some implementations, the wire end connector includes a plurality of cables electrically connected to opposite sides of the circuit board, and a covering body covering the electrical connections between the circuit board and the cables.

In some embodiments, each protective wall also has a wall end surface for the buckling bar to buckle, and the anti-separation part is a protruding part on the wall end surface to block the buckling buckle on the wall end surface. The protruding structure of the rod.

In some embodiments, each protective wall also has a wall surface perpendicular to the wall end surface, and the anti-separation part is adjacent to the wall surface and has an arc connected between the wall end surface and the wall surface. The arc surface is configured to contact the buckling rod and allow the buckling rod to slide on it, so that the buckling rod can cross the anti-separation part and buckle on the end surface of the wall.

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

In some implementations, the pull strap is configured to push the buckling rod away from the protective walls through tension when being pulled.

In some embodiments, the drawstring is configured to drive the buckling rod of the elastic buckle away from the protective walls and drive the protrusion of the locking member away from the button hole when pulled.

In some implementations, the elastic buckle can rotate relative to the board end connector between a locking position and an unlocking position. When the elastic buckle is in the locking position, the elastic buckle is upright. shape, the buckling rod exerts elastic force to buckle on the protective walls and is blocked by the anti-detachment part. The connecting belt body connected to the holding belt body is in a bent shape. When the elastic buckle is in the unlocking position , the elastic buckle is inclined, the buckling rod moves away from the protective walls, and the connecting belt body is upright.

The present invention at least has the following effects: the buckling rod of the elastic buckle applies elastic force to buckle the wall end surfaces, so that the wire end connector can be tightly and firmly combined with the board end connector. The elastic buckle and the locking part can be unlocked by one operation step of pulling the pull strap, thereby improving the convenience of operation and use. The design of the stoppers can prevent the pivot rod bodies of the elastic buckle from respectively detaching from the pivot holes to improve the combination stability, and can also limit the position of the elastic buckle. function in that unlocked position. Through the design of the anti-disengagement parts, the buckling rod of the elastic buckle can be supported to deform and accumulate reset elastic force, and it can also block the buckling rod so that the elastic buckle is firmly positioned on the The function of the lock position.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are designated with the same numbering.

Referring to FIG. 1 , a first embodiment of an electrical connection device 100 of the present invention includes a wire end connector 1 , a board end connector 2 , and an elastic buckle 3 .

For the convenience of subsequent explanation, a first direction D1 of the electrical connection device 100, a second direction D2 perpendicular to the first direction D1, and a third direction perpendicular to the first direction D1 and the second direction D2 are defined. Direction D3. In this first embodiment, the first direction D1 is the front-to-back direction, for example, the direction pointed by the arrow in Figure 1 is front, and the opposite direction is back. The second direction D2 takes the left-right direction as an example. The direction pointed by the arrow in Figure 1 is left, and the opposite direction is right. The third direction D3 is the up-down direction for example. The direction pointed by the arrow in Figure 1 is up, and the opposite direction is down.

Referring to Figures 1, 2 and 3, the wire end connector 1 includes an insulating housing 11, a circuit board 13, a plurality of cables 14, a covering body 15, a locking component 16, and a drawstring. 17. The insulating housing 11 has a main body portion 110 , a mating portion 111 , two protective walls 112 , and two side portions 113 . The main body 110 has a downward end surface 114 . The end surface 114 forms an opening 115 . The butt portion 111 extends downward from the end surface 114 . The butt portion 111 is in the shape of a wall and surrounds the opening 115 . The front side of the main body part 110 and the front side of the docking part 111 jointly define a holding groove 116 for accommodating the locking member 16 and a wall 117 located at the rear side of the holding groove 116 . The protective walls 112 extend forward from the front side of the main body 110 and are respectively located on the left and right opposite sides of the holding groove 116 . The width direction of each protective wall 112 extends along the second direction D2. Each protective wall 112 has an upward wall end surface 118 , a forward wall surface 119 perpendicular to the wall end surface 118 , and an anti-separation part 120 provided on the wall end surface 118 . The anti-separation part 120 is a protruding structure protruding from the end surface 118 of the wall. In the first embodiment, the anti-separation part 120 is adjacent to the wall surface 119 and has an arc surface 121 connected between the wall end surface 118 and the wall surface 119 . Specifically, the protruding structure is semi-cylindrical and its axial direction extends along the corresponding width direction of the protective wall 112 . The side portions 113 extend downward from the end surface 114 of the main body portion 110 and are respectively located on opposite left and right sides of the mating portion 111 . A gap 122 is formed between each side portion 113 and the butt portion 111 .

The circuit board 13 is disposed on the main body 110 of the insulating housing 11 and partially extends out of the opening 115 . The cables 14 are electrically connected to opposite sides of the circuit board 13 . The covering body 15 covers the electrical connection between the circuit board 13 and the cables 14 and is located in the main body 110 of the insulating housing 11 to prevent the circuit board 13 from electrically connecting with the cables 14 The joints are exposed to protect them. The covering body 15 is formed at the electrical connection points between the circuit board 13 and the cables 14 , for example, through insert molding.

It should be noted that in other implementations of the first embodiment, the number of cables 14 can also be reduced according to needs and only electrically connected to the same side of the circuit board 13 , or the cables 14 can also be The number is set to one according to the requirements and is electrically connected to one side of the circuit board 13, and is not limited to the method disclosed in the first embodiment.

The locking component 16 has a retaining section 161 , a locking section 162 , and a connecting section 163 . The retaining section 161 is disposed in the retaining groove 116 of the insulating housing 11 , and the left and right opposite sides of the retaining section 161 are fastened to the insulating housing 11 through interference fit. The locking section 162 extends upward from the retaining section 161 and is spaced apart from the wall 117 of the insulating housing 11 . The locking section 162 can be bent relative to the holding 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 . The locking section 162 can be bent relative to the holding section 161 to be away from or close to the wall 117 , so that the locking component 16 can be changed between a locked state and an unlocked state.

The pull strap 17 has a connecting strap body 171 and a holding strap body 172 . The connecting belt body 171 has an annular connecting part 173 and an extending part 174 connected between the connecting part 173 and the holding belt body 172 . The connecting portion 173 passes through the connecting hole 165 and is sleeved on the connecting section 163 and can pivot relative to the connecting section 163 . The holding belt body 172 is used for the user to hold and pull. When the user pulls the drawstring 17 upward through the holding strap body 172, the connecting strap body 171 will pull the connecting section 163 to drive the locking section 162 to bend relative to the holding section 161 and approach the wall. 117, causing the locking member 16 to change from the locked state to the unlocked state.

Referring to Figures 1, 4, 5 and 6, the board connector 2 includes an insulating base 21, an insulating body 22, a plurality of terminals 23, and a metal shell 24. The insulating seat 21 has a base body 210 and a surrounding wall body 211 extending upward from the base body 210 . The base 210 is formed with an installation slot 212 and an installation space 213 located in front of the installation slot 212 . The base 210 has two stoppers 214 respectively located on opposite left and right sides of the installation space 213 . Each of the blocking blocks 214 has a blocking block 215 and a limiting block 216 extending inwardly from the inside of the blocking block 215 and adjacent to the front end of the blocking block 215 . The surrounding wall body 211 is formed with a slot 217 connected to the top of the installation slot 212 for insertion of the circuit board 13 (as shown in FIG. 2 ).

The insulating body 22 is disposed in the mounting slot 212 of the insulating base 21 . The terminals 23 are inserted through the insulating body 22 , and each terminal 23 has a contact portion 231 extending into the slot 217 .

The metal shell 24 is sleeved on the insulating base 21 and has a surrounding plate 241, an inserting plate 242, and two folding plates 243. The surrounding plate 241 is inserted into the base body 210 of the insulating seat 21 and surrounds the outer periphery of the surrounding wall body 211 . A mating space 25 for mating the mating portion 111 of the wire end connector 1 is formed between the surrounding plate 241 and the surrounding wall body 211 . Two button holes 244 are formed on the front side of the surrounding plate 241 and are spaced apart from each other and connected to the docking space 25 . The button holes 244 are respectively used for the protrusions 164 to buckle. The inserting plate 242 extends downward from the front side of the surrounding plate 241 and is inserted into the installation space 213 . The folding plates 243 respectively extend outward and forward from the left and right sides of the inserting plate 242 and are parallel to each other. The folding plates 243 are inserted into the installation space 213 and are respectively located inside the stoppers 214 . Each folding plate 243 is formed with a pivot hole 245 extending along the second direction D2.

The elastic buckle 3 is formed by bending a metal rod integrally and has two pivot rods 31 and a buckling rod 32 . A portion of each pivot rod 31 is received in the installation space 213 of the board end connector 2 . Each pivot rod 31 has a side rod body 311 between the corresponding stopper 214 and the corresponding folding plate 243, and a pivot rod body extending inwardly from the bottom end of the side rod body 311. 312. The pivot rod body 312 is rotatably pivoted to the corresponding pivot hole 245 of the folding plate 243 . The buckling rod 32 is connected to the top of the side rod bodies 311 of the pivot rods 31 and is used to buckle the wall end surfaces 118 of the protective walls 112 of the line end connector 1 .

Referring to Figures 1 and 5, the side rod body 311 of each pivot rod 31 is interposed between the corresponding blocking block 215 of the blocking block 214 and the corresponding folding plate 243, and the The blocking block 215 blocks the outside of the corresponding side rod body 311 and is designed to correspond to the position of the corresponding pivot rod body 312, which can prevent the pivot rod body 312 of the corresponding pivot rod 31 from moving along the The second direction D2 moves outward and away from the corresponding pivot hole 245 . Thereby, the elastic buckle 3 can be firmly pivoted to the folding plates 243 of the plate end connector 2 .

Referring to Figures 1 and 6, the elastic buckle 3 can be in an unlocking position (as shown in Figure 6) and a locking position (such as shown in Figure 9). Since the limiting block 216 of each stopper 214 is located on the rotation path of the corresponding side rod body 311 of the pivot rod 31, when the side rod body of each pivot rod 31 When 311 tilts against the limiting block 216 corresponding to the 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 an inclined position. The unlocking position looks like this.

The assembly and disassembly methods of the electrical connection device 100 will be described in detail below:

Referring to FIGS. 1 and 7 , when assembling the wire end connector 1 to the board end connector 2 , first align the circuit board 13 and the mating portion 111 to the slot 217 and the mating space 25 respectively. Subsequently, the line end connector 1 is moved downward along a mating direction M parallel to the third direction D3 and is coupled to the board end connector 2 . Since the elastic buckle 3 is inclined when in the unlocking position, the buckling rod 32 will not block the movement path of the wire end connector 1, so that the wire end connector 1 can be smoothly docked with the board. Terminal Connector 2.

When the wire end connector 1 is docked with the board end connector 2, the circuit board 13 and the docking portion 111 are plugged into the slot 217 and the docking space 25 respectively. The surrounding plate 241 of the metal shell 24 is inserted into the gaps 122 of the insulating housing 11 . The circuit board 13 is electrically connected to the contact portions 231 of the terminals 23 . The protrusions 164 of the locking component 16 are respectively engaged with the button holes 244 of the metal shell 24 .

After the wire end connector 1 is docked, the extension portion 174 of the drawstring 17 is pressed against the wall 117 of the insulating housing 11 , and the extension portion 174 drives the connecting portion 173 relative to the locking member 16 The connecting section 163 rotates along a first rotation direction R1 and is bent relative to the connecting portion 173, so that the connecting belt body 171 is bent. Thereby, the connecting portion 173 can be prevented from blocking the rotation path of the elastic buckle 3 .

Referring to Figures 7 and 8, the elastic buckle 3 is rotated along the first rotation direction R1, so that the elastic buckle 3 is relative to the board end connector 2 and the line end connector docked with the board end connector 2 1 spin. Since the arc surface 121 of each anti-off portion 120 is configured to contact the buckle rod 32 of the elastic buckle 3 and allow the buckle rod 32 to slide thereon, the buckle rod 32 can cross the Therefore, when the buckling rod 32 of the elastic buckle 3 rotates to contact the arc surface 121 of each anti-dropping part 120, the arc surface 121 exerts the force on the buckling rod 32. The buckling rod 32 will be pushed outward to urge the buckling rod 32 to bend and deform relative to the side rod bodies 311 of the pivot rods 31 and accumulate reset 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 larger.

Referring to Figures 9 and 10, when the buckle rod 32 of the elastic buckle 3 crosses the arc surface 121 of each anti-loosening portion 120, the elastic buckle 3 becomes upright, and the buckle rod 32 is stored The reset elastic force rebounds and applies elastic force to buckle the wall end surfaces 118 of the protection walls 112, so that the elastic buckle 3 is positioned in the locking position. Since the elastic buckle 3 is upright in the locking position, the elastic force exerted by the buckling rod 32 on the wall end surfaces 118 is equivalent to a downward force perpendicular to the wall end surfaces 118, thereby overcoming the Due to the influence of manufacturing tolerances and assembly tolerances of the wire end connector 1 and the board end connector 2, the wire end connector 1 can be tightly and firmly combined with the board end connector 2, thereby maintaining communication between the two. stability during signal transmission.

Since each of the anti-separation parts 120 is a protruding structure protruding from the end surface 118 of the wall, the anti-separation parts 120 can support the deformation of the buckling rod 32 and can also block the buckling rod. 32 role. Thereby, the elastic buckle 3 can be firmly positioned at the locking position, and the buckling rod 32 can be prevented from sliding on the wall end surface 118 and being separated from the wall end surface 118 due to vibration or improper external force.

Referring to Figures 9 and 11, when you want to remove the wire end connector 1 from the board end connector 2, pull the pull strap upward in a pulling direction P that is opposite to the docking direction M (as shown in Figure 7). The holding strap 172 of 17. When the holding belt body 172 is pulled upward, the connecting belt body 171 will be driven upward, so that the extension part 174 drives the connecting part 173 along a second rotation direction opposite to the first rotation direction R1 (as shown in FIG. 8 ). The rotation direction R2 is relative to the rotation of the connecting section 163 of the locking component 16 . Due to the tension generated when the extension part 174 pulls the connection part 173, when the connection part 173 or the extension part 174 of the connection belt body 171 contacts the buckle rod 32, it will exert force to push the buckle. The rod 32 moves toward the anti-separation parts 120, thereby driving the elastic buckle 3 to rotate along the second rotation direction R2. Therefore, the buckling rod 32 will slide along the arc surface 121 of each anti-separation portion 120 . When the buckling rod 32 crosses the arc surface 121 of each anti-separation portion 120 , the buckling rod 32 is separated from the protective walls 112 and the locking state of the protective walls 112 is released.

Referring to FIGS. 11 and 12 , when the extension part 174 straightens the connection part 173 so that the connection belt body 171 is upright as shown in FIG. 11 , the thrust force exerted by the connection belt body 171 on the buckling rod 32 The elastic buckle 3 will be prompted to continue to rotate along the second rotation direction R2, so that the elastic buckle 3 returns to the unlocking position shown in FIG. 12 .

Referring to Figures 1 and 12, when the holding belt 172 continues to be pulled up and drives the connecting belt 171 to move upward, the connecting belt 171 will drive the locking section 162 relative to the holding section through the connecting section 163. The section 161 is bent to be close to the wall 117 , so that the locking component 16 is transformed into the unlocked state in which the protrusions 164 are respectively separated from the button holes 244 . Then, the pull strap 17 can pull up the wire end connector 1 to detach it from the board end connector 2 .

Referring to Figures 8, 9 and 11, by each of the anti-separation parts 120 being adjacent to the wall surface 119 and the arc surface 121 being connected between the wall end surface 118 and the wall surface 119, the elasticity is Before the buckle 3 rotates close to the locking position, the buckling rod 32 can be smoothly supported by the anti-disengagement portion 120 to deform and accumulate reset elastic force. Thereby, the smoothness of rotation and sliding of the elastic buckle 3 relative to the anti-loosening parts 120 can be improved, and it can be ensured that when the elastic buckle 3 rotates to the locking position, the reset elastic force accumulated in the buckle rod 32 can be vertically The wall end surfaces 118 are pressed down to improve the stability of the wire end connector 1 being combined with the board end connector 2 .

Because the protruding structure is semi-cylindrical and its axial direction extends along the corresponding width direction of the protective wall 112, the area of the arc surface 121 of the anti-separation part 120 is large, thereby making the anti-separation part 120 The area in contact with the crimping rod 32 is large. Thereby, the smoothness with which the anti-detachment part 120 can support the deformation of the buckling rod 32 can be improved, and the blocking effect of the anti-detachment part 120 with blocking the buckling rod 32 can also be improved.

It should be noted that in other implementations of the first embodiment, each anti-separation part 120 may also be in the shape of a hemisphere or an arc bump, and is not limited to a semi-cylindrical shape. In addition, the number of the protrusions 164 and the number of the button holes 244 can also be set to one each according to the requirements, and are not limited to the number disclosed in the first embodiment.

Referring to FIGS. 13 and 14 , the overall structure of the second embodiment of the electrical connection device 100 of the present invention is generally the same as that of the first embodiment, except for the wire end connector 1 .

The retaining section 161 of the locking component 16 has an upward end 166 . The insulating housing 11 also has an elastic retaining arm 123 disposed in the retaining groove 116. The elastic retaining arm 123 retains the end 166 of the retaining section 161 to prevent the locking member 16 from moving upward. Disengage from the holding groove 116 of the insulating housing 11 . Thereby, the stability of the locking component 16 being fixed in the holding groove 116 can be further improved.

In summary, the electrical connection device 100 of each embodiment uses the buckling rod 32 of the elastic buckle 3 to apply elastic force to the wall end surfaces 118, so that the wire end connector 1 can be tightly and securely connected. Combined with the board end connector 2. The elastic buckle 3 and the locking component 16 can be unlocked by one operation step of pulling the pull strap 17, thereby improving the convenience of operation and use. The design of the stoppers 214 can prevent the pivot rods 312 of the elastic buckle 3 from respectively detaching from the pivot holes 245 to improve the combination stability, and can also prevent the elasticity. The buckle 3 is limited to the unlocking position. The design of the anti-disengagement parts 120 can support the buckle rod 32 of the elastic buckle 3 to deform and accumulate reset elastic force, and can also block the buckle rod 32 from causing the elastic buckle to deform. 3 is firmly positioned at the lock position, so the purpose of the present invention can indeed be achieved.

However, the above are only examples of the present invention, and should not be used to limit the scope of the present invention. All simple equivalent changes and modifications made based on the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of this invention.

100: Electrical connection device 1: Line end connector 11: Insulating shell 110: Main part 111: docking department 112:Protective wall 113: Side 114: End face 115:Open your mouth 116: Holding slot 117:Wall 118: Wall end face 119: Wall surface 120: Anti-hair loss part 121: Arc surface 122:Gap 123: Elastic holding arm 13:Circuit board 14: Cable 15: Covering body 16:Lock fasteners 161: Holding section 162:Lock section 163:Connection segment 164:Protrusion 165:Connection hole 166:End 17: Drawstring 171:Connect the belt body 172: Hold the belt body 173:Connection part 174:Extension 2:Board end connector 21:Insulation seat 210: base body 211: Enclosing wall 212:Installation slot 213:Installation space 214:Block 215: blocking block 216:Limiting block 217:Slot 22: Insulating body 23:Terminal 231:Contact Department 24:Metal shell 241:surround board 242:Plug-in board 243: folding plate 244:Buttonhole 245: Pivot hole 25: docking space 3: Elastic buckle 31: Pivot rod 311: Side rod body 312: Pivot rod body 32:Withholding rod M: docking direction P:Pull direction R1: first rotation direction R2: Second rotation direction D1: first direction D2: second direction D3: Third direction

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 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 an elastic buckle; Figure 2 is an exploded perspective view of the line end connector of the first embodiment; Figure 3 is a bottom view of the line end connector of the first embodiment; Figure 4 is a perspective exploded view of the wire end connector and the elastic buckle of the first embodiment; Figure 5 is a top view of the wire end connector and the elastic buckle of the first embodiment; Figure 6 is a cross-sectional view taken along line VI-VI in Figure 5, illustrating the elastic buckle in an unlocked position; Figure 7 is an incomplete cross-sectional view of the first embodiment; Figure 8 is an incomplete cross-sectional view of the first embodiment; Figure 9 is an incomplete cross-sectional view of the first embodiment, illustrating the elastic buckle in a locked position; Figure 10 is a front view of the first embodiment; Figure 11 is an incomplete cross-sectional view of the first embodiment, illustrating that a pull strap drives the elastic buckle to unlock; Figure 12 is an incomplete cross-sectional view of the first embodiment, illustrating that the drawstring drives a locking member to unlock; Figure 13 is an incomplete three-dimensional exploded view of the wire end connector of the second embodiment of the electrical connection device of the present invention; and FIG. 14 is an incomplete perspective view of the wire end connector of the second embodiment.

1: Line end connector

112:Protective wall

118: Wall end face

119: Wall surface

120: Anti-hair loss part

121: Arc surface

17: Drawstring

171:Connect the belt body

172: Hold the belt body

173:Connection part

174:Extension

2:Board end connector

3: Elastic buckle

31: Pivot rod

311: Side rod body

312: Pivot rod body

32:Withholding rod

D1: first direction

D3: Third direction

Claims (19)

An electrical connection device comprising: First-line connectors, including: An insulating shell is formed with a retaining groove, the insulating shell has two protective walls respectively located on opposite sides of the retaining groove, and each of the protective walls has an anti-separation part; A circuit board is provided on the insulating shell; At least one cable is electrically connected to one side of the circuit board; A locking component has a retaining section disposed in the retaining groove, a locking section extending from the retaining section and spaced apart from the insulating shell, and a connecting section extending from the locking section, the The locking section has a protrusion; and A pull strap having a connecting strap body connected to the connecting section of the locking component, and a holding strap body; One board-end connector, including: An insulating base is formed with a slot for plugging the circuit board; A plurality of terminals are provided on the insulating base, each terminal having a contact portion extending into the slot; and A metal shell is placed on the insulating base. One side of the metal shell has two outwardly extending and parallel folding plates, and a button hole for the protrusion to buckle; An elastic buckle has two pivot rods respectively pivoted to the folding plates, and a buckling rod connected to the pivot rods for buckling to the protective walls; When the wire end connector is docked with the board end connector, the circuit board is inserted into the slot, the protrusion is buckled in the button hole, and the buckling rod of the elastic buckle can pass over the anti-removal part to withheld from such protective walls. The electrical connection device as claimed in claim 1, wherein each of the folding plates is formed with a pivot hole, and each of the pivot rods has a pivot rod body that is pivoted to the pivot hole of the corresponding folding plate. . The electrical connection device as claimed in claim 2, wherein the insulating seat has two stoppers, each of which is used to prevent the corresponding pivot rod body of the corresponding pivot rod from being separated from the corresponding pivot hole. The electrical connection device as claimed in claim 3, wherein each of the stop blocks has a stop block located outside the corresponding folding plate, and each of the pivot rods also has a block connected to the withholding rod and the pivot. The side rod body is between the connecting rod bodies. The side rod body is between the corresponding folding plate and the corresponding blocking block. The blocking block corresponds to the position of the corresponding pivot rod body and is used to Block the corresponding outside of the rod body on that side. The electrical connection device according to claim 4, wherein each of the blocking blocks also has a limiting block extending inwardly from the inside of the blocking block, and the limiting block is located on the corresponding side rod body. It is used to block the corresponding side rod body on the rotation path. The electrical connection device as claimed in claim 1, wherein the insulating seat has two blocks, each of which has a position on the rotation path of the corresponding pivot rod to block the corresponding pivot lever. Limiting block of rod. The electrical connection device as claimed in any one of claims 3 to 6, wherein the insulating base forms an installation space between the stops, and the installation space is used for the folding plates and each of the pivot connections. Part of the pole accommodates. The electrical connection device according to claim 1, wherein the insulating housing has a main body, the main body has an end face, the end face forms an opening, and the circuit board is disposed on the main body and partially extends out of the opening. The electrical connection device according to claim 8, wherein the insulating housing further has a docking portion extending from the end surface, and a docking space is formed between the metal shell and the insulating seat for the docking portion to dock. The electrical connection device according to claim 9, wherein the insulating housing further has two side portions extending from the end surface, and a gap is formed between each side portion and the mating portion for the metal housing to be plugged into. gap. The electrical connection device according to claim 1, wherein the holding section of the locking member has an end, and the insulating housing also has an elastic holding arm disposed in the holding groove, and the elastic holding arm buckles Hold the end to prevent the locking member from detaching from the insulating housing. The electrical connection device according to claim 1, wherein the board-end connector further includes an insulating body disposed in the insulating seat and for the terminals to pass through. The electrical connection device as claimed in claim 1, wherein the wire end connector includes a plurality of cables electrically connected to opposite sides of the circuit board, and a circuit board covering the circuit board is electrically connected to the cables. The cladding at. The electrical connection device as claimed in claim 1, wherein each protective wall also has a wall end surface for the buckling bar to buckle, and the anti-separation part is a protruding part on the wall end surface to prevent buckling on the wall end surface. The protruding structure of the buckling rod on the end surface of the wall. The electrical connection device as claimed in claim 14, wherein each protective wall also has a wall surface perpendicular to the wall end surface, and the anti-separation part is adjacent to the wall surface and has a wall surface connected to the wall end surface and the wall end surface. The arc surface between the surfaces is configured to contact the buckling rod and allow the buckling rod to slide on it, so that the buckling rod can cross the anti-separation part and buckle on the wall end surface. The electrical connection device as claimed in claim 15, wherein the protruding structure is semi-cylindrical and its axial direction extends along the corresponding width direction of the protective wall. The electrical connection device as claimed in claim 1, wherein the pull strap is configured to push the buckling rod away from the protective walls through tension when being pulled. The electrical connection device as claimed in claim 1, wherein the pull strap is configured to drive the buckling rod of the elastic buckle to separate from the protective walls and drive the protrusion of the locking member to separate from the button hole when being pulled. . The electrical connection device as claimed in claim 1, 14, 15, 16, 17 or 18, wherein the elastic buckle can rotate between a locking position and an unlocking position relative to the board end connector. When the elastic buckle is in the locking position, the elastic buckle is in an upright shape, and the buckling rod applies elastic force to buckle the protective walls and is blocked by the anti-detachment part. The connecting strap is connected to the holding belt body. The body is bent. When the elastic buckle is in the unlocking position, the elastic buckle is inclined, the buckling rod moves away from the protective walls, and the connecting belt body is upright.

Images