Obtuse-angle connector plug

Abstract

According to the technical scheme, the obtuse-angle connector plug is characterized in that the obtuse-angle connector plug comprises a shell and a wire harness, the shell comprises a bottom shell and an inclined shell, the wire harness penetrates out of the inclined shell, the obtuse-angle connector plug further comprises a handle, the handle comprises two rotating arms and a stress arm, and a main buckling foot is arranged on the face, facing the wire harness, of the stress arm; a buckling shell located between the stress arm and the wire harness is arranged on the outer wall of the inclined shell, a fastener is inserted into the buckling shell in the width direction of the inclined shell, and the buckling shell is provided with an alignment groove communicating with an inner cavity of the buckling shell and allowing the main buckling foot to penetrate therein and a buckling groove arranged side by side with the alignment groove. The flange abuts against one end of the buckle shell, the middle buckle is used for limiting the main buckle foot in the alignment groove, the clamping feet have elasticity and are located at the end, away from the flange, of the middle buckle, the clamping feet close to the buckle groove are provided with clamping blocks capable of being inserted into the buckle groove, and the face, facing the inclined shell, of the flange is provided with an auxiliary buckle groove. And the stress arm is provided with an auxiliary buckling pin which can be limited in the auxiliary buckling groove, so that the problems of high plugging difficulty and easy damage in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, and more specifically to an obtuse-angle connector plug. Background Art

[0002] With the rapid development of the new energy vehicle industry, high-voltage charging devices are becoming more and more diverse, especially electrical connectors. Due to the differences in the design of OEM models, in order to facilitate space arrangement or wiring harness layout, new requirements have emerged for the structure of electrical connectors, such as the angled plug structure. Due to the change in shape, the conventional plug structure docking method cannot meet the requirements, which will make it difficult to plug and unplug the plug and easily cause damage to the plug. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide an obtuse-angle connector plug which is easy to plug and unplug and has a stable structure.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an obtuse-angle connector plug, comprising a shell and a wiring harness passing through the shell, the shell comprising a bottom shell and an oblique shell connected to each other, the length direction of the bottom shell and the length direction of the oblique shell are at an obtuse angle, the wiring harness passes through the oblique shell, and also comprises a handle, the handle comprises two swing arms rotatably connected to both sides of the bottom shell respectively and a force-bearing arm connecting the two swing arms together and being able to fit with the outer wall of the oblique shell, the force-bearing arm is provided with a main buckle foot on the surface facing the wiring harness, and a buckle shell located between the force-bearing arm and the wiring harness is provided on the outer wall of the oblique shell, The buckle shell is plugged with a fastener along the width direction of the inclined shell, and the buckle shell is provided with an alignment groove which is connected with the inner cavity of the buckle shell and for the main buckle foot to penetrate, and a buckle groove arranged side by side with the alignment groove. The fastener includes a flange which contacts with one end of the buckle shell, a middle buckle used to limit the main buckle foot in the alignment groove, and a pair of elastic clamping feet positioned on the end of the middle buckle away from the flange, and a clamping block which can be inserted into the buckle groove is arranged on the clamping foot adjacent to the buckle groove, an auxiliary buckle groove is arranged on the surface of the flange facing the inclined shell, and an auxiliary buckle foot which can be limited in the auxiliary buckle groove is arranged on the force-bearing arm, and the handle can be rotated away from the inclined shell by misaligning the middle buckle and the main buckle foot.

[0005] As a further improvement of the present invention, the buckle shell is further provided with a spring groove located between the buckle groove and the alignment groove, and the force-bearing arm is provided with a spring block capable of entering the spring groove, and the spring block does not interfere with the middle buckle, and by moving the blocking block into the spring groove, the spring block drives the handle to rotate away from the inclined shell.

[0006] As a further improvement of the utility model, the end surface of the clamping block facing the flange is an inclined surface that can slide relative to the buckle groove.

[0007] As a further improvement of the utility model, two positioning blocks are arranged on the opposite side walls of the inclined shell and are located on the same circumference around the rotation center of the handle, and the two rotary arms are provided with a positioning hole for the positioning block to be inserted.

[0008] As a further improvement of the utility model, two opposite side walls of the bottom shell are provided with a limit platform located on one side of the rotation center of the swing arm, and the two swing arms are provided with a limit block that can contact the limit platform.

[0009] As a further improvement of the utility model, the load-bearing arm is provided with a plurality of reinforcing ribs which are parallel to each other and extend along the length direction of the load-bearing arm.

[0010] The beneficial effects of the utility model are as follows: a buckle shell and a fastener that are plugged into each other are arranged on the outer wall of the inclined shell, the buckle shell is provided with a buckle groove and an alignment groove, the fastener includes a middle buckle and a clamping foot that can enter the buckle shell, the clamping foot is provided with a clamping block that is clamped with the buckle groove, a handle is rotatably connected to the bottom shell, and the handle is provided with a main buckle foot that can enter the alignment groove, and the main buckle foot is limited between the middle buckle and the outer wall of the inclined shell so that the handle cannot rotate relative to the inclined shell. Compared with the prior art, the handle that is rotatably connected outside the shell can provide an effective force application point and pull the plug out of the socket, which is highly efficient, and at the same time, there is indirect protection for the structure of the plug, which slows down the damage speed of the plug; the design of moving the fastener along the width direction of the inclined shell can avoid the influence of gravity on the movement of the fastener compared to the design of moving the fastener along the length direction of the inclined shell, and can also avoid the gap between the socket and the plug. The structure is more reasonable, which reduces the difficulty of moving the fastener. The design of misalignment between the middle buckle and the main buckle foot allows the handle to be turned outward, so that the handle can be turned outward without having to pull out the entire buckle shell, reducing the difficulty of operation between the fastener and the buckle shell and avoiding the phenomenon of easy loss of the fastener. The auxiliary buckle foot is locked with the auxiliary buckle groove, which is compared with the design with only one main buckle foot. It can provide more locking points, so that the force-bearing arm is subject to more restraint force, and the state of fit between the force-bearing arm and the inclined shell is more stable. The locking of the auxiliary buckle foot with the auxiliary buckle groove will increase the friction between the auxiliary buckle foot and the flange, thereby further improving the connection stability of the fastener relative to the buckle shell, and the fastener is difficult to fall out of the buckle shell without external force. Furthermore, when the main buckle foot is damaged, the locking of the auxiliary buckle foot with the auxiliary buckle groove can still ensure that the handle cannot be rotated, thereby indirectly extending the service life of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0012] Figure 2 It is a three-dimensional exploded diagram of the utility model;

[0013] Figure 3 It is a three-dimensional diagram of the fastener in the utility model.

[0014] Figure numerals: 1. shell; 11. bottom shell; 12. inclined shell; 13. positioning block; 14. limit platform; 2. wiring harness; 3. handle; 31. swing arm; 32. force arm; 33. main buckle foot; 34. spring block; 35. auxiliary buckle foot; 36. positioning hole; 37. limiting block; 38. reinforcing rib; 4. buckle shell; 41. alignment groove; 42. buckle groove; 43. spring groove; 5. fastener; 51. flange; 52. middle buckle; 53. clamping foot; 54. clamping block; 55. auxiliary buckle groove. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments, wherein the same components are indicated by the same reference numerals.

[0016] Reference Figures 1 to 3 As shown, an obtuse-angle connector plug of this embodiment includes a housing 1 and a wiring harness 2 passing through the housing 1, the housing 1 includes a bottom housing 11 and an oblique housing 12 connected to each other, the length direction of the bottom housing 11 and the length direction of the oblique housing 12 form an obtuse angle, and the wiring harness 2 passes through the oblique housing 12;

[0017] Based on the above-mentioned prior art, it also includes a handle 3, which includes two swing arms 31 rotatably connected to both sides of the bottom shell 11 and a force-bearing arm 32 that connects the two swing arms 31 together and can fit with the outer wall of the inclined shell 12. A main buckle foot 33 is integrally formed on the surface of the force-bearing arm 32 facing the wiring harness 2. The thickness of the main buckle foot 33 is less than the height of the end face of the force-bearing arm 32 and is arranged adjacent to the outer wall of the inclined shell 12. An internal hollow buckle shell 4 is integrally formed on the outer wall of the inclined shell 12. The buckle shell 4 is located between the force-bearing arm 32 and the wiring harness 2. The length direction of the inner cavity of the buckle shell 4 is the same as the width direction of the outer wall of the inclined shell 12, and the opening of the inner cavity is located on one end face of the buckle shell 4. The fastener 5 includes a flange 51, a middle buckle 52 and a pair of clamping feet 53 distributed in sequence along the length direction of the fastener 5. , the edge profile of the flange 51 is the same as the outer profile of the end face of the buckle shell 4, the middle buckle 52 and a pair of clamping feet 53 can enter the inner cavity of the buckle shell 4, the width of the middle buckle 52 is adapted to the width of the inner cavity of the buckle shell 4, the pair of clamping feet 53 are distributed along the width direction of the middle buckle 52, and the pair of clamping feet 53 can be elastically bent and deformed relative to the middle buckle 52, and a clamping block 54 is integrally formed on one of the clamping feet 53, and a positioning groove 41 and a buckle groove 42 of different depths are opened on the surface of the buckle shell 4 facing the force-bearing arm 32, the positioning groove 41 can be entered by the main buckle foot 33, and the buckle groove 42 can be entered by the clamping block 54, and the flange 51 is cut at the same time near the surface of the inclined shell 12 and the top piece of the force-bearing arm 32 to form an auxiliary buckle groove 55, and the force-bearing arm 32 is integrally formed with an auxiliary buckle foot 35 that can be inserted into the auxiliary buckle groove 55;

[0018] In the process of production and assembly, before the fastener 5 is installed into the buckle shell 4, the force-bearing arm 32 is swung to fit with the outer wall of the inclined shell 12, the main buckle foot 33 enters the alignment groove 41 and fits with the outer wall of the inclined shell 12, and the auxiliary buckle foot 35 is located at the end of the buckle shell 4. By applying force to the clamping foot 53 in opposite directions, the distance between the two buckle feet 53 is smaller than the width of the inner cavity of the buckle shell 4, and then the fastener 5 is installed into the buckle shell 4 from one side of the buckle shell 4, and the flange 51 slides relative to the outer wall of the inclined shell 12. The middle buckle 52 and the clamping foot 53 are both greater than the thickness of the main buckle foot 33 relative to the outer wall of the inclined shell 12, and the middle buckle 52 and the clamping foot 53 do not interfere with each other until the flange 51 contacts the end surface of the buckle shell 4, the clamping foot 53 moves to its position and restores its deformation so that the clamping block 54 enters the buckle groove 42, the main buckle foot 33 is limited between the middle buckle 52 and the outer wall of the inclined shell 12, the auxiliary buckle foot 35 is clamped with the auxiliary buckle groove 55, and the handle 3 cannot rotate relative to the shell 1;

[0019] When the user needs to unplug the socket, first push the clamping block 54 into the buckle shell 4 and apply a pulling force to the flange 51, the buckle 5 moves out relative to the buckle shell 4, the clamping block 54 contacts and slides with the inner wall of the buckle shell 4 until the middle buckle 52 is misaligned with the main buckle foot 33 and the clamping foot 53 and the main buckle foot 33 do not interfere with each other, the auxiliary buckle foot 35 is separated from the auxiliary buckle groove 55, the handle 3 can be rotated relative to the shell 1, and the force-bearing arm 32 can be turned outward relative to the inclined shell 12, so that the user can apply force to the handle to separate the plug from the socket; if the unplugging is completed or the plugging is completed, the force-bearing arm 32 is rotated again to fit with the outer wall of the inclined shell 12, the main buckle foot 33 returns to the alignment groove 41, and then the flange 51 is pushed to move into the buckle shell 4, the clamping block 54 is re-engaged in the buckle groove 42, the middle buckle 52 is re-located above the main buckle foot 33 to hinder the movement of the main buckle foot 33, and the auxiliary buckle foot 35 is re-engaged with the auxiliary buckle groove 55;

[0020] Compared with the prior art, such a design can provide an effective force application point and pull the plug out of the socket, which is highly efficient. At the same time, it indirectly protects the structure of the plug and slows down the damage rate of the plug. Compared with the design of moving the fastener 5 along the length direction of the inclined shell 12, the design of moving the fastener 5 along the width direction of the inclined shell 12 can avoid the influence of gravity on the movement of the fastener 5, and can also avoid the situation where the fastener 5 is difficult to move due to the small gap between the socket and the plug, and the structure is more reasonable. The design of misaligning the middle buckle 52 and the main buckle foot 33 so that the handle 3 can be turned outward realizes that the handle 3 can be turned outward without pulling out the buckle shell 4 as a whole, which reduces the difficulty of operation between the fastener 5 and the buckle shell 4. It can avoid the phenomenon that the fastener 5 is easily lost; compared with the design of having only one main buckle foot 33, the design in which the auxiliary buckle foot 35 is locked with the auxiliary buckle groove 55 can provide more locking points, so that the force-bearing arm 32 is subject to more restraint force, and the state of the force-bearing arm 32 and the inclined shell 12 is more stable. The locking of the auxiliary buckle foot 35 with the auxiliary buckle groove 55 will increase the friction between the auxiliary buckle foot 35 and the flange 51, thereby further improving the connection stability of the fastener 5 relative to the buckle shell 4, and the fastener 5 is difficult to fall out of the buckle shell 4 without external force; furthermore, when the main buckle foot 33 is damaged, the locking of the auxiliary buckle foot 35 with the auxiliary buckle groove 55 can still ensure that the handle 3 cannot be rotated, thereby indirectly extending the service life of the utility model.

[0021] As a specific implementation method of the improvement, refer to Figure 1 and Figure 2 As shown, the buckle shell 4 is also provided with an elastic groove 43 located between the buckle groove 42 and the alignment groove 41, and the force-bearing arm 32 is provided with an elastic block 34 that can enter the elastic groove 43. The elastic block 34 and the middle buckle 52 do not interfere with each other. When the handle 3 needs to be turned outward, the clamping block 54 is pushed into the buckle shell 4 and the flange 51 is pulled outward until the middle buckle 52 is misaligned with the main buckle foot 33. The clamping block 54 enters the elastic groove 43 under the action of the clamping foot 53 restoring the elastic deformation. The clamping block 54 partially touches the elastic groove 43, and the handle 3 The shell 1 is initially rotated at an angle, so that the user can more effectively turn the handle 3 outward; when the handle 3 needs to be reset, the force-bearing arm 32 is moved to a position that fits the outer wall of the inclined shell 12, the spring block 34 enters the spring groove 43 and pushes the card block 54 into the buckle shell 4, and then the flange 51 is pushed to make the card block 54 move back to the buckle groove 42. Such a design can indirectly push the card block 54 into the buckle shell 4 through the spring block 34, reducing the difficulty of the user pushing the card block 54 by hand.

[0022] As a specific implementation method of the improvement, refer to Figure 3As shown, the end surface of the block 54 facing the flange 51 is an inclined surface that can slide relative to the buckle groove 42. When the handle 3 needs to be turned outward, only a pulling force needs to be applied to the flange 51, and the inclined surface of the block 54 slides relative to the side wall of the buckle groove 42, and the block 54 gradually retreats into the buckle shell 4. Compared with the design of retreating the block 54 into the buckle shell 4 by hand, such a design can simplify the operation of pulling the fastener 5 relative to the buckle shell 4, and is more user-friendly.

[0023] As a specific implementation method of the improvement, refer to Figure 1 and Figure 2 As shown, two positioning blocks 13 are arranged on the opposite side walls of the inclined shell 12 around the rotation center of the handle 3 and located on the same circumference. The two swing arms 31 are each provided with a positioning hole 36 for the positioning block 13 to be inserted. The end edge of the positioning block 13 away from the inclined shell 12 is spherical. When the force-bearing arm 32 is in contact with the outer wall of the inclined shell 12, the positioning hole 36 on the swing arm 31 is inserted into one of the positioning blocks 13; when the force-bearing arm 32 is turned outward to a specified angle, the positioning hole 36 on the swing arm 31 is inserted into the other positioning block 13. During the rotation of the swing arm 31, the swing arm 31 The edge will slide relative to the spherical surface of the positioning block 13, and the two swing arms 31 will undergo elastic deformation and be stretched open until the positioning hole 36 is aligned with the positioning block 13, then the two swing arms 31 restore their elastic deformation, and the positioning block 13 is inserted into the positioning hole 36. In the absence of external force, the positioning block 13 cannot be separated from the positioning hole 36. Such a design can provide two accurate positions for the force-bearing arm 32, which not only ensures that the force-bearing arm 32 cannot move arbitrarily when the fastener 5 moves relative to the fastener 4, but also ensures that the angle of the handle 3 is accurate, making it easier for the user to apply effective plugging and unplugging force to the plug.

[0024] As a specific implementation of the improvement, when the user pulls out the plug and applies excessive force to the handle 3, the positioning block 13 will be separated from the positioning hole 36, the handle 3 will be turned outward at a large angle, the force effect will be poor, and the handle 3 will be easily damaged. To solve the above problem, refer to Figure 1 and Figure 2 As shown, the two opposite side walls of the bottom shell 11 are provided with a limit platform 14 located on one side of the rotation center of the swing arm 31, and the two swing arms 31 are provided with a limit block 37 that can contact with the limit platform 14. When the handle 3 is turned outward, the limit block 37 is close to or contacts with the limit platform 14. Such a design can prevent the handle 3 from being over-turned and separated from the positioning block 13, effectively ensure the stability of the connection between the handle 3 and the shell 1, and reduce the degree of damage.

[0025] As a specific implementation method of the improvement, refer to Figure 1 and Figure 2 As shown, the load-bearing arm 32 is provided with a plurality of reinforcing ribs 38 which are parallel to each other and extend along the length direction of the load-bearing arm 32 . Such a design can improve the structural strength of the load-bearing arm 32 and indirectly extend the service life of the load-bearing arm 32 .

[0026] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An obtuse-angle connector plug, comprising a housing (1) and a wiring harness (2) passing through the housing (1), wherein the housing (1) comprises a bottom housing (11) and an oblique housing (12) connected to each other, wherein the length direction of the bottom housing (11) and the length direction of the oblique housing (12) form an obtuse angle, and the wiring harness (2) passes through the oblique housing (12), characterized in that: The handle (3) further comprises two swing arms (31) rotatably connected to two sides of the bottom shell (11) and a force-bearing arm (32) connecting the two swing arms (31) together and being able to fit with the outer wall of the inclined shell (12); a main buckle foot (33) is arranged on the surface of the force-bearing arm (32) facing the wire harness (2); a buckle shell (4) located between the force-bearing arm (32) and the wire harness (2) is arranged on the outer wall of the inclined shell (12); a fastener (5) is inserted into the buckle shell (4) along the width direction of the inclined shell (12); the buckle shell (4) is provided with an alignment groove (41) which is communicated with the inner cavity of the buckle shell (4) and for the main buckle foot (33) to penetrate, and a buckle groove (42) arranged side by side with the alignment groove (41); the fastener (5) ) comprises a flange (51) which contacts one end of a buckle shell (4), a middle buckle (52) for limiting a main buckle foot (33) in a positioning groove (41), and a pair of elastic clamping feet (53) positioned on one end of the middle buckle (52) away from the flange (51), the clamping feet (53) adjacent to the buckle groove (42) are provided with a clamping block (54) which can be inserted into the buckle groove (42), the flange (51) is provided with an auxiliary buckle groove (55) on the surface facing the inclined shell (12), the force-bearing arm (32) is provided with an auxiliary buckle foot (35) which can be limited in the auxiliary buckle groove (55), and the handle (3) can be rotated away from the inclined shell (12) by misaligning the middle buckle (52) and the main buckle foot (33) and separating the auxiliary buckle foot (35) from the auxiliary buckle groove (55).

2. The obtuse-angle connector plug according to claim 1, characterized in that: The buckle shell (4) is also provided with an elastic groove (43) located between the buckle groove (42) and the alignment groove (41); the force-bearing arm (32) is provided with an elastic block (34) capable of entering the elastic groove (43); the elastic block (34) and the middle buckle (52) do not interfere with each other; by moving the clamping block (54) into the elastic groove (43), the elastic block (34) drives the handle (3) to rotate away from the oblique shell (12).

3. The obtuse-angle connector plug according to claim 1 or 2, characterized in that: The end surface of the clamping block (54) facing the flange (51) is an inclined surface capable of sliding relative to the buckle groove (42).

4. The obtuse-angle connector plug according to claim 1 or 2, characterized in that: Two positioning blocks (13) are arranged on opposite side walls of the inclined shell (12) and are located on the same circumference around the rotation center of the handle (3). The two rotary arms (31) are each provided with a positioning hole (36) into which the positioning block (13) can be inserted.

5. The obtuse-angle connector plug according to claim 1 or 2, characterized in that: The two opposite side walls of the bottom shell (11) are both provided with a limit platform (14) located on one side of the rotation center of the rotary arm (31), and the two rotary arms (31) are both provided with a limit block (37) capable of contacting the limit platform (14).

6. The obtuse-angle connector plug according to claim 1 or 2, characterized in that: The load-bearing arm (32) is provided with a plurality of reinforcing ribs (38) which are parallel to each other and extend along the length direction of the load-bearing arm (32).

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