Electrical connector components

Abstract

The present invention provides an electrical connector assembly, which includes a wire end connector and a board end connector that are plugged into each other, the wire end connector includes a wire end insulating body, a wire end terminal and a locking piece pre-installed on the wire end insulating body, the board end connector includes a board end insulating body and a board end terminal, the wire end insulating body has a snap portion that is locked with the board end insulating body, the board end insulating body has a cylindrical board end docking portion and a flange that protrudes outside the board end docking portion and is annular, when the wire end connector is docked with the board end connector, the wire end connector rotates at any angle with the central axis of the board end docking portion as the axis to be plugged with the board end connector, and the snap portion is moved forward over the flange to achieve locking. The electrical connector assembly of the present invention can achieve plugging at any angle and wiring requirements in any direction.

Description

Technical Field

[0001] The invention relates to an electrical connector assembly. Background Art

[0002] Electrical connectors are indispensable components in electronic and electrical devices. With the upgrading of electronic and electrical devices, electrical connectors have developed into quite mature products. For electrical connectors, it is necessary to be able to contact stably, reliably and transmit signals or currents at high speed.

[0003] An electrical connector assembly usually includes a plug connector and a socket connector that match each other. When a conventional plug connector and a socket connector are plugged in, they need to have a certain directionality in order to be docked, and the locking force between the two is insufficient, which can easily lead to poor electrical contact. In particular, under high-voltage conditions, a larger locking force is required to prevent the plug connector and the socket connector from loosening and causing poor electrical contact.

[0004] In view of this, it is necessary to improve the existing electrical connector assembly to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide an electrical connector assembly which can realize plugging and wiring requirements at any angle.

[0006] To achieve the above-mentioned purpose of the invention, the present invention provides an electrical connector assembly, which includes a wire end connector and a board end connector that are plugged into each other, the wire end connector includes a wire end insulating body, a wire end terminal and a locking piece pre-installed on the wire end insulating body, the board end connector includes a board end insulating body and a board end terminal, the wire end insulating body has a snap portion that is locked with the board end insulating body, the board end insulating body has a cylindrical board end docking portion and a ring-shaped flange protruding from the board end docking portion, when the wire end connector is docked with the board end connector, the wire end connector is rotated at any angle with the center axis of the board end docking portion as the axis to be plugged into the board end connector, and the snap portion is passed forward over the flange to achieve locking.

[0007] As a further improvement of the present invention, the locking member includes a base, a pair of first locking arms extending forward from the base, and a second locking arm located between the pair of first locking arms in the lateral direction. When the wire end connector is not locked with the board end connector, the second locking portion on the second locking arm is locked with the locking protrusion of the wire end insulating body. When the wire end connector is locked with the board end connector, the first locking portion on the first locking arm passes over the corresponding cross beam of the wire end insulating body and is locked with it.

[0008] As a further improvement of the present invention, in the axial direction of the wire end docking portion of the wire end connector, the first locking portion is located in front of the second locking portion, and when the wire end connector is not plugged into the board end connector, the first locking portion and the second locking portion are clamped in the axial direction between the cross beam and the locking protrusion to achieve pre-installation.

[0009] As a further improvement of the present invention, the wire end insulation body has a mask portion located outside its wire end docking portion, and the mask portion and the wire end docking portion are spaced apart in the radial direction to form an insertion space for inserting the board end docking portion, and the mask portion has a pair of side walls arranged opposite to each other, a top wall connecting the top ends of the pair of side walls, an extension wall extending downward from the front end of the top wall, and a cantilever arm extending backward from the bottom of the extension wall, and the locking member also has a plate body portion extending forward from the base, and when the locking member is pushed forward, the plate body portion is inserted forward between the cantilever arm and the top wall.

[0010] As a further improvement of the present invention, the buckle portion protrudes downward and is formed at the bottom of the cantilever arm, and a receiving area for receiving the flange is formed between the buckle portion and the rear end surface of the cantilever arm.

[0011] As a further improvement of the present invention, the plate body has a paving notch located on its front side and recessed backward, and a pair of tongues located on both sides of the paving notch. In the lateral direction of the locking member, the cantilever arm is located between the pair of tongues. When the board-end connector and the wire-end connector are plugged into each other, the cantilever arm has a tendency to move toward the paving notch under the pushing action of the flange.

[0012] As a further improvement of the present invention, the wire end connector also has a heat shrink sleeve arranged outside the wire end insulation body and a stress release piece overmolded at the intersection of the heat shrink sleeve and the wire end insulation body, the heat shrink sleeve covers the mating part of the wire end insulation body and surrounds the exposed part of the wire end terminal therein.

[0013] As a further improvement of the present invention, the wire end connector also has a first waterproof ring which is sleeved outside the wire end docking portion and squeezed by the board end docking portion, and the board end insulating body also has a protruding portion which protrudes outside the board end docking portion, and a side of the protruding portion which is away from the docking end of the board end connector is provided with a receiving groove which is recessed toward the docking end of the board end connector, and the board end connector also has a second waterproof ring accommodated in the receiving groove.

[0014] As a further improvement of the present invention, the board-end connector also has a protective sleeve that is sleeved on the outside of the head of the board-end terminal, the protective sleeve has an annular base portion and an end wall located at one end of the base portion in its axial direction, and the end wall has an insertion hole that penetrates it along the axial direction and is coaxially arranged with the board-end terminal.

[0015] As a further improvement of the present invention, the base portion has a plurality of bulges protruding from its inner wall surface, the plate end terminal has a neck and a head arranged along the axial direction, the outer diameter of the head is larger than the outer diameter of the neck, the bulge is located outside the neck and is stopped by the blocking surface of the head.

[0016] Beneficial effects of the present invention: When the line-end connector and the board-end connector of the electrical connector assembly of the present invention are docked, the line-end connector is rotated at any angle with the central axis of the board-end docking part as the axis to be plugged into the board-end connector, and the snap-on part is passed forward over the flange to achieve locking, thereby achieving the plug-in requirements at any angle and the wiring requirements in any direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the electrical connector assembly of the present invention.

[0018] Figure 2 yes Figure 1 A perspective exploded view of the line end connector in the electrical connector assembly shown.

[0019] Figure 3 yes Figure 2 A three-dimensional view of the locking member of the wire end connector shown.

[0020] Figure 4 yes Figure 2 A cross-sectional view of a partial structure of a wire end insulating body of a wire end connector is shown.

[0021] Figure 5 yes Figure 2 The wire-end connector shown is a cross-sectional view after the wire-end terminals, stress relief members, and cables are removed, and the board-end connector and the wire-end connector are displayed.

[0022] Figure 6 yes Figure 1 A perspective exploded view of the board-end connector in the electrical connector assembly shown.

[0023] Figure 7 yes Figure 6 Another view of the board header connector shown.

[0024] Figures 8 to 9 yes Figure 1The electrical connector assembly shown is a cross-sectional view of a portion of the structure after the board end terminals, wire end terminals, stress relief members and cables are removed. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below in conjunction with the embodiments shown in the accompanying drawings. However, the embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on the embodiments are all within the protection scope of the present invention.

[0026] Please refer to Figures 1 to 9 The figure shows a preferred embodiment of the electrical connector assembly of the present invention, which includes a wire-end connector 100 and a board-end connector 200 which are plugged into each other. For the sake of convenience, when the wire-end connector 100 and the board-end connector 200 are introduced separately below, they are described with their mating end as the front end and the end opposite to the mating end as the rear end, that is, the mating direction is the front-to-back direction, a direction perpendicular to the front-to-back direction is the height direction, and the other direction perpendicular to the front-to-back direction is the lateral direction; when the wire-end connector 100 and the board-end connector 200 are introduced at the same time, they are described from the perspective of the wire-end connector.

[0027] The wire end connector 100 includes a wire end insulating body 11, a wire end terminal 12, and a locking member 13 pre-installed on the wire end insulating body 11, and the board end connector 200 includes a board end insulating body 21 and a board end terminal 22. In this embodiment, the wire end connector 100 is L-shaped as a whole, and the outlet direction of the cable 16 is perpendicular to its plug-in direction; in other embodiments, the outlet direction of the cable connector 100 can also be parallel to its plug-in direction.

[0028] The wire end insulating body 11 has a snap-on portion 1101 that is locked with the board end insulating body 21. The board end insulating body 21 has a cylindrical board end docking portion 211 and a ring-shaped flange 212 that protrudes from the board end docking portion 211. When the wire end connector 100 is docked with the board end connector 200, the wire end connector 100 is rotated at any angle around the central axis of the board end docking portion 211 to be plugged into the board end connector 200, and the snap-on portion 1101 is moved forward over the flange 212 to achieve locking, thereby achieving the plug-in requirements at any angle and the wiring requirements in any direction.

[0029] The locking member 13 includes a base 131, a pair of first locking arms 132 extending forward from the base 131, and a second locking arm 133 located between the pair of first locking arms 132 in the lateral direction. When the wire end connector 100 is not locked with the board end connector 200, the second locking portion 1331 on the second locking arm 133 is locked with the locking protrusion 1102 of the wire end insulating body 11. When the wire end connector 100 is locked with the board end connector 200, the first locking portion 1321 on the first locking arm 132 passes over the corresponding cross beam 1103 of the wire end insulating body 11 and is locked with it.

[0030] In the axial direction of the wire end docking portion 112 of the wire end connector 100, the first locking portion 1321 is located in front of the second locking portion 1331, and when the wire end connector 100 is not plugged into the board end connector 200, the first locking portion 1321 and the second locking portion 1331 are clamped in the axial direction between the cross beam 1103 and the locking protrusion 1102 to achieve pre-installation.

[0031] The wire end insulation body 11 has a mask portion 113 located outside its wire end docking portion 112. The mask portion 113 and the wire end docking portion 112 are spaced apart in the radial direction to form an insertion space for inserting the board end docking portion 211. The mask portion 113 has a pair of side walls 1131 arranged opposite to each other, a top wall 1132 connecting the top ends of the pair of side walls 1131, an extension wall 1133 extending downward from the front end of the top wall 1132, and a cantilever arm 1134 extending backward from the bottom of the extension wall 1133.

[0032] In addition, the wire end insulating body 11 also has a pair of connecting bridges 115 connecting the extension wall 1133 with the main body 114 of the wire end insulating body 11. Each of the connecting bridges 115 is Z-shaped as a whole and extends in the front-to-back direction. The pair of connecting bridges 115 are disposed on both sides of the cantilever arm 1134 in the transverse direction and are spaced apart from the cantilever arm 1134 in the transverse direction. At the same time, the connecting bridges 115 are also spaced apart from the adjacent side walls 1131 in the transverse direction. At the same time, the pair of connecting bridges 115 are disposed on both sides of the locking protrusion 1102 in the transverse direction and are adjacent to it.

[0033] The locking member 13 also has a plate portion 134 extending forward from the base portion 131. Figure 8 When the plate body 134 is pushed (in the direction indicated by the arrow A), the plate body 134 is inserted forward into the interval space G between the cantilever arm 1134 and the top wall 1132.

[0034] The buckle portion 1101 is formed to protrude downward at the bottom of the cantilever arm 1134 , and a receiving area for receiving the flange 212 is formed between the buckle portion 1101 and the rear end surface of the cantilever arm 1134 .

[0035] The locking member 13 also has a pair of guide portions 135 disposed on both sides of the plate body 134 in the lateral direction and an operating portion 136 located on the upper side of the base 131. The operating portion 136 is upright compared to the plate body 134. Each of the side walls 1131 has a guide groove 1135 located on the inner side thereof and extending along the front-to-back direction for the guide portion 135 to be inserted into.

[0036] Furthermore, the pair of first locking arms 132 are disposed on both sides of the plate body 134 in the transverse direction, and are both spaced a certain distance from the plate body 134. The second locking arm 133 is spaced a certain distance from the plate body 134 in the height direction (e.g., Figure 8 As shown) so that it has a certain deformation space in the height direction.

[0037] In addition, the plate body 134 has a recessed portion 1341 located on the front side thereof and recessed backward, and a pair of tongues 1342 located on both sides of the recessed portion 1341. In the lateral direction of the locking member 13, the cantilever arm 1134 is located between the pair of tongues 1342. When the board-end connector 200 is plugged into the wire-end connector 100, the cantilever arm 1134 tends to move toward the recessed portion 1341 under the pushing action of the flange 212.

[0038] The wire end connector 100 also has a heat shrink tube 14 sleeved on the outside of the wire end insulating body 11 and a stress release piece 15 overmolded at the intersection of the heat shrink tube 14 and the wire end insulating body 11. The heat shrink tube 14 covers the mating portion 116 of the wire end insulating body 11 and surrounds the exposed portion 122 of the wire end terminal 12 therein.

[0039] Specifically, the heat shrinkable tube 14 comprises a first tube body 141 sleeved outside the matching portion 116 and a second tube body 142 located below the first tube body 141, wherein the inner diameter of the first tube body 141 is greater than the inner diameter of the second tube body 142. The heat shrinkable tube 14 further comprises a connecting section 143 connecting the first tube body 141 and the second tube body 142, wherein the connecting section 143 is trumpet-shaped, and the exposed portion 122 of the wire end terminal 12 is accommodated in the connecting section 143 and the second tube body 142.

[0040] The wire end connector 100 also has a first waterproof ring 17 which is sleeved outside the wire end docking portion 112 and squeezed by the board end docking portion 211. The board end insulating body 21 also has a protruding portion 213 which protrudes outside the board end docking portion 211. The protruding portion 213 is provided with a receiving groove 2131 which is recessed toward the docking end of the board end connector 200 on one side away from the docking end of the board end connector 200. The board end connector 200 also has a second waterproof ring 23 which is accommodated in the receiving groove 2131.

[0041] The board-end connector 200 also has a protective sleeve 24 that is sleeved on the outside of the head 221 of the board-end terminal 22. The protective sleeve 24 has an annular base portion 241 and an end wall 242 located at one end of the base portion 241 in the axial direction. The end wall 242 has an insertion hole 2421 that penetrates it along the axial direction and is coaxially arranged with the board-end terminal 22.

[0042] The base portion 241 has a plurality of bulges 2413 protruding from its inner wall surface, and the plate-end terminal 22 has a neck 223 and a head 221 arranged along the axial direction. The outer diameter of the head 221 is larger than the outer diameter of the neck 223, and the bulge 2413 is located outside the neck 223 and is stopped by the blocking surface of the head 221.

[0043] When the line-end connector 100 of the electrical connector assembly of the present invention is docked with the board-end connector 200, the line-end connector 100 is rotated at any angle with the central axis of the board-end docking portion 211 as the axis to be plugged into the board-end connector 200, and the snap portion 1101 is moved forward over the flange 212 to achieve locking, thereby achieving the plug-in requirements at any angle and the wiring requirements in any direction.

[0044] The terms used herein, such as "upper", "lower", "left", "right", "front", "back", etc., which indicate relative spatial positions, are used for the purpose of convenience to describe the relationship between one feature and another feature as shown in the accompanying drawings. It is understood that, depending on the placement of the product, the terms of relative spatial positions may be intended to include different orientations other than those shown in the drawings, and should not be construed as limitations on the claims. In addition, the descriptor "horizontal" used herein is not completely equivalent to being perpendicular to the direction of gravity, and a certain angle of inclination is allowed.

[0045] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. An electrical connector assembly, comprising a wire end connector and a board end connector plugged into each other, wherein the wire end connector comprises a wire end insulating body, a wire end terminal and a locking member pre-installed on the wire end insulating body, and the board end connector comprises a board end insulating body and a board end terminal, characterized in that: The wire end insulating body has a snap portion that is locked with the board end insulating body, and the board end insulating body has a cylindrical board end docking portion and a ring-shaped flange protruding from the board end docking portion. When the wire end connector is docked with the board end connector, the wire end connector is rotated at any angle with the central axis of the board end docking portion as the axis to be plugged into the board end connector, and the snap portion is made to pass forward over the flange to achieve locking. The locking member includes a base, a pair of first locking arms extending forward from the base, and a second locking arm located between the pair of first locking arms in the lateral direction. When the wire end connector is not locked with the board end connector, the second locking portion on the second locking arm is locked with the locking protrusion of the wire end insulating body. When the wire end connector is locked with the board end connector When the first locking portion on the first locking arm passes over the corresponding crossbeam of the wire end insulating body and is locked with it, the wire end connector also has a heat shrink sleeve sleeved outside the wire end insulating body and a stress release piece overmolded at the intersection of the heat shrink sleeve and the wire end insulating body, the heat shrink sleeve covers the mating portion of the wire end insulating body and surrounds the exposed portion of the wire end terminal therein, the wire end connector also has a first waterproof ring sleeved outside its wire end docking portion and squeezed by the board end docking portion, the board end insulating body also has a protruding portion protruding outside the board end docking portion, the protruding portion is away from the docking end of the board end connector and is provided with a receiving groove recessed toward the docking end of the board end connector on one side of the protruding portion, and the board end connector also has a second waterproof ring accommodated in the receiving groove.

2. The electrical connector assembly according to claim 1, wherein: In the axial direction of the wire end docking portion of the wire end connector, the first locking portion is located in front of the second locking portion, and when the wire end connector is not plugged into the board end connector, the first locking portion and the second locking portion are clamped between the cross beam and the locking protrusion in the axial direction to achieve pre-installation.

3. The electrical connector assembly according to claim 2, wherein: The wire end insulating body has a shield portion located outside its wire end docking portion, and the shield portion and the wire end docking portion are spaced apart in the radial direction to form an insertion space for inserting the board end docking portion, the shield portion has a pair of side walls arranged opposite to each other, a top wall connecting the top ends of the pair of side walls, an extension wall extending downward from the front end of the top wall, and a cantilever arm extending backward from the bottom of the extension wall, and the locking member also has a plate body portion extending forward from the base, and when the locking member is pushed forward, the plate body portion is inserted forward between the cantilever arm and the top wall.

4. The electrical connector assembly according to claim 3, wherein: The buckle portion is formed to protrude downward at the bottom of the cantilever arm, and a receiving area for receiving the flange is formed between the buckle portion and the rear end surface of the cantilever arm.

5. The electrical connector assembly according to claim 4, wherein: The plate body has a recessed portion formed at the front side thereof and recessed backward, and a pair of tongues located on both sides of the recessed portion. In the lateral direction of the locking member, the cantilever arm is located between the pair of tongues. When the board-end connector and the wire-end connector are plugged in, the cantilever arm tends to move toward the recessed portion under the pushing action of the flange.

6. The electrical connector assembly according to any one of claims 1 to 5, characterized in that: The board-end connector also has a protective sleeve that is sleeved over the head of the board-end terminal, the protective sleeve has an annular base portion and an end wall located at one end of the base portion in the axial direction, and the end wall has an insertion hole that penetrates it along the axial direction and is coaxially arranged with the board-end terminal.

7. The electrical connector assembly according to claim 6, wherein: The base portion has a plurality of bulges protruding from its inner wall surface, and the plate end terminal has a neck and a head arranged along the axial direction, the outer diameter of the head is larger than the outer diameter of the neck, and the bulge is located outside the neck and is stopped by the blocking surface of the head.

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