Wire locking structure of charging gun for electric vehicle

Abstract

The utility model relates to the technical field of new energy electric vehicles, and discloses a wire locking structure of a charging gun for an electric vehicle, which comprises a charging gun shell, a cable, a circular clamping jaw, a clamping jaw fastening ring and a fastening piece, a plurality of clamping jaw cantilevers are uniformly distributed on the circular clamping jaw, the clamping jaw cantilevers extend out along the axial direction of the cable, and the clamping jaw cantilevers extend out along the axial direction of the cable. The end portion of the clamping jaw cantilever is provided with a cantilever protruding point protruding towards the cable. A plurality of guide grooves corresponding to the clamping jaw cantilevers are formed in the clamping jaw fastening ring, and wedge-shaped steps are arranged at the bottoms of the guide grooves. The wire locking structure of the charging gun for the electric vehicle adopts a mode of combining the circular ring clamping jaw and the clamping jaw fastening ring, the circular ring clamping jaw can enable a cable to be uniformly stressed and prevent the cable from being deformed, so that the interior of the cable can be smooth, and meanwhile, the cable can be prevented from being damaged by clamping, and a sheath can be prevented from being heated, extending and thinning to cause weakening of clamping force; therefore, the safety and reliability of the charging gun in the using process are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy electric automobile technical field especially, it relates to a lock wire structure of charging gun for electric automobile. BACKGROUND

[0002] With the rapid development of electric vehicle industry, the safety and practicality of charging facilities become increasingly important. As a key component in the charging process of electric vehicles, the design of the charging gun directly affects the efficiency of charging, user experience and the durability of the equipment. Among them, the fixing and connecting mechanism of the charging gun cable, that is, the "wire clamp" design, plays a crucial role.

[0003] In the environment of high load and high frequency use, it is crucial to ensure the stable connection and protection of the cable. Currently, the charging gun on the market generally uses a two-part wire clamp. This wire clamp often causes uneven stress on the cable, and the cable can be compressed into a flat round shape, causing blockage of the internal flow of the cable. Moreover, the two-part combined position can damage the cable sheath and reduce the insulation performance. Also, due to the heating of the cable, the sheath at the two-part combined position extends and becomes thinner, causing the clamping force to weaken, resulting in the sheath slipping out of the wire clamp. SUMMARY

[0004] The purpose of the utility model is to provide a lock wire structure of charging gun for electric automobile, to solve the problem of uneven stress on the cable caused by the two-part claw mentioned in the background technology, which can easily deform and block the internal flow of the cable. At the same time, it avoids the situation where the sheath is stretched and thinned due to compression after being electrified and heated, the clamping force of the claw is weakened, and the sheath is separated.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A lock wire structure of charging gun for electric automobile, comprising a charging gun shell, a cable, a circular ring claw, a claw fastening ring and a fastener, wherein:

[0007] The tail end of the charging gun shell is provided with a wire connection port;

[0008] The cable extends into the charging gun shell from the wire connection port;

[0009] The circular ring claw is sleeved on the cable and located in the wire connection port. The circular ring claw is provided with a plurality of circularly distributed claw cantilevers. The claw cantilevers extend along the axial direction of the cable, and the end of the claw cantilevers is provided with a cantilever protrusion protruding towards the cable;

[0010] The claw fastening ring is sleeved on the cable and located in the wire connection port. The claw fastening ring is provided with a plurality of guide grooves corresponding to each claw cantilever. The groove bottom of the guide groove is provided with a wedge-shaped step;

[0011] The fastener is used for locking the circular clamping claw and the clamping claw fastening ring and connecting with the charging gun shell, so that each clamping claw cantilever is inserted into the corresponding guide groove and is pressed to the cable by the wedge-shaped step, and the cable is gathered.

[0012] As an alternative, a fixing part is arranged on the inner wall of the wiring port, the circular clamping claw abuts against the fixing part, the clamping claw fastening ring is located on the side of the circular clamping claw away from the fixing part, and the fastener is connected with the fixing part after sequentially penetrating through the clamping claw fastening ring and the circular clamping claw.

[0013] As an alternative, a tail cover for closing the wiring port is arranged at the tail end of the charging gun shell, a buckle part extending out of the wiring port is arranged on the clamping claw fastening ring, and the tail cover is buckled with the buckle part.

[0014] As an alternative, a wire sleeve is sleeved on the cable, a through hole for the wire sleeve to pass through is arranged on the tail cover, and an edge pressing part is arranged on the wire sleeve and clamped between the through hole and the cable.

[0015] As an alternative, a sealing ring is arranged between the fixing part and the cable.

[0016] As an alternative, a limiting part is arranged on the fixing part, a gasket is arranged between one end of the sealing ring and the limiting part, and the other end of the sealing ring abuts against the circular clamping claw.

[0017] As an alternative, the fastener is a screw, a plurality of screws are evenly distributed in a ring shape, a first through hole corresponding to each screw is arranged on the circular clamping claw, a second through hole corresponding to each screw is arranged on the clamping claw fastening ring, and a threaded hole corresponding to each screw is arranged on the charging gun shell.

[0018] The electric vehicle charging gun lock wire structure has the advantages that:

[0019] The electric vehicle charging gun lock wire structure adopts the circular clamping claw and the clamping claw fastening ring, the circular clamping claw can uniformly bear the force of the cable, prevents the cable from deforming, allows the cable to be unobstructed, avoids the cable and the sheath from being clamped and heated to extend and thin, and reduces the clamping force, and thus the safety and reliability of the charging gun in use are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is an outline drawing of the electric vehicle charging gun lock wire structure provided by the utility model embodiment;

[0021] Figure 2 is a first angle sectional view of the electric vehicle charging gun lock wire structure provided by the utility model embodiment;

[0022] Figure 3 is a second angle sectional view of the electric vehicle charging gun lock wire structure provided by the utility model embodiment;

[0023] Figure 4 is a disassembly view of the wire locking structure of the charging gun for electric vehicles provided by the embodiment of the present application;

[0024] Figure 5 is a structural detail view of the circular clamping claw involved in the embodiment of the present application;

[0025] Figure 6 is a structural detail view of the clamping claw fastening ring involved in the embodiment of the present application.

[0026] In the drawings:

[0027] 1, charging gun shell; 11, fixed part; 12, limiting part; 13, threaded hole;

[0028] 2, cable;

[0029] 3, circular clamping claw; 31, clamping claw cantilever; 32, cantilever protrusion; 33, first through hole;

[0030] 4, clamping claw fastening ring; 41, guide groove; 42, wedge-shaped step; 43, buckle part; 44, second through hole;

[0031] 5, screw;

[0032] 6, tail cover; 61, perforation;

[0033] 7, wire protection sleeve; 71, pressing edge;

[0034] 8, sealing ring;

[0035] 9, gasket. DETAILED DESCRIPTION

[0036] The utility model will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0037] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other features between them. Moreover, first feature "on", "above" and "upper surface of" second feature includes that first feature is directly above and obliquely above second feature, or only indicates that horizontal height of first feature is higher than second feature. First feature "under", "below" and "under surface of" second feature includes that first feature is directly below and obliquely below second feature, or only indicates that horizontal height of first feature is less than second feature.

[0039] In the description of the embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.

[0040] In addition, the terms "first", "second" and the like are only used for differentiation in description, and have no special meaning.

[0041] Please refer to Figures 1 to 6 As shown in the figure, the utility model provides a locking structure of charging gun for electric vehicle, including charging gun shell body 1, cable 2, circular clamping jaw 3, clamping jaw fastening ring 4 and fastener, wherein:

[0042] The tail end of the charging gun shell body 1 is provided with a wiring port;

[0043] The cable 2 extends into the charging gun shell body 1 from the wiring port;

[0044] The circular clamping jaw 3 is sleeved on the cable 2 and located in the wiring port, a plurality of circularly distributed clamping jaw cantilevers 31 are arranged on the circular clamping jaw 3, the clamping jaw cantilevers 31 extend along the axial direction of the cable 2, and the end portion of the clamping jaw cantilever 31 is provided with a cantilever protruding point 32 protruding towards the cable 2;

[0045] The clamping jaw fastening ring 4 is sleeved on the cable 2 and located in the wiring port, a plurality of guide grooves 41 are formed in the clamping jaw fastening ring 4 corresponding to each clamping jaw cantilever 31, and the groove bottom of the guide groove 41 is provided with a wedge-shaped step 42;

[0046] The fastener is used for locking the circular clamping jaw 3 and the clamping jaw fastening ring 4 and connecting with the charging gun shell body 1, so that each clamping jaw cantilever 31 is inserted into the corresponding guide groove 41 and is pressed towards the cable 2 by the wedge-shaped step 42, so as to press the cable 2 by each cantilever protruding point 32.

[0047] Thus, the circular clamping jaw 3 and the clamping jaw fastening ring 4 are combined, the circular clamping jaw 3 can evenly bear the force of the cable, prevent the cable 2 from deforming, ensure the smoothness of the cable, and avoid the clamping jaw from damaging the cable 2 and the sheath from being heated and extended to weaken the clamping force, thereby improving the safety and reliability of the charging gun during use.

[0048] The circular clamping jaw 3 is preferably formed by injection molding, and the plurality of uniformly distributed clamping jaw cantilevers 31 and the cantilever protrusions 32 thereon serve to install and fix the cable 2. The clamping jaw fastening ring 4 is also formed by injection molding or casting, and serves to press the circular clamping jaw 3.

[0049] Optionally, a fixed portion 11 is arranged on the inner wall of the wiring port, the circular clamping jaw 3 abuts against the fixed portion 11, the clamping jaw fastening ring 4 is located on the side of the circular clamping jaw 3 away from the fixed portion 11, and the fastener is connected with the fixed portion 11 after sequentially penetrating through the clamping jaw fastening ring 4 and the circular clamping jaw 3.

[0050] Thus, the clamping jaw fastening ring 4, the circular clamping jaw 3, and the charging gun shell 1 are sequentially connected by the fastener, the disassembly and assembly difficulty is reduced, a stable wire locking structure is formed, the cable 2 and the charging gun shell 1 are prevented from being accidentally loosened or detached during charging, and the durability and stability of the charging gun are greatly improved. In addition, the positions of the circular clamping jaw 3 and the clamping jaw fastening ring 4 can be interchangeably designed, only the external shape structure needs to be adaptively adjusted, and the internal and external positions of the two are not limited.

[0051] Further, the tail end of the charging gun shell 1 is provided with a tail cover 6 for closing the wiring port, the clamping jaw fastening ring 4 is provided with a clasp portion 43 extending out of the wiring port, and the tail cover 6 is buckled with the clasp portion 43.

[0052] Thus, the tail cover 6 can close the wiring port and protect the circular clamping jaw 3 and the clamping jaw fastening ring 4 inside, and the design of the clasp portion 43 on the clamping jaw fastening ring 4 facilitates the disassembly and fixation of the tail cover 6, the structure is ingenious, and no additional fastener is needed.

[0053] Optionally, a wire sheath 7 is sleeved on the cable 2, a perforation 61 is arranged on the tail cover 6 for the wire sheath 7 to pass through, and a pressing edge 71 is arranged on the wire sheath 7 and clamped between the perforation 61 and the cable 2.

[0054] Thus, the wire sheath 7 avoids the cable 2 from being bent and worn at the perforation 61, ensures the long-term stable connection between the cable 2 and the charging gun shell 1, and the design of the pressing edge 71 facilitates the installation of the wire sheath 7 and does not cause inconvenience to the disassembly of the tail cover 6, thereby further improving the closure of the wiring port and also not needing an additional fastener.

[0055] Optionally, a sealing ring 8 is arranged between the fixed portion 11 and the cable 2.

[0056] Thus, the sealing performance at the wire port is improved by the sealing ring 8.

[0057] Further, the fixing part 11 is provided with a limiting part 12, and a gasket 9 is arranged between one end of the sealing ring 8 and the limiting part 12, and the other end of the sealing ring 8 abuts against the circular clamping jaw 3.

[0058] Thus, the limiting part 12, the gasket 9, the sealing ring 8 and the circular clamping jaw 3 abut against each other in sequence, so that the components are reliably installed, the sealing effect at the wire port is ensured, and water vapor, dust and the like are prevented from entering the inside of the charging gun shell 1.

[0059] Optionally, the fastener is a screw 5, a plurality of the screws 5 are evenly distributed in a ring shape, the circular clamping jaw 3 is provided with a first through hole 33 corresponding to each screw 5, the clamping jaw fastening ring 4 is provided with a second through hole 44 corresponding to each screw 5, and the charging gun shell 1 is provided with a threaded hole 13 corresponding to each screw 5.

[0060] Thus, the screw 5 is tightly fixed through the second through hole 44 on the clamping jaw fastening ring 4, the first through hole 33 on the circular clamping jaw 3 and the charging gun shell 1, so that the installation process is convenient and the wire locking structure is stable. In addition, in addition to the screw 5 fastening, other mechanical fixing modes such as buckling can also be used.

[0061] Specific assembly process:

[0062] The gasket 9, the sealing ring 8, the circular clamping jaw 3 and the clamping jaw fastening ring 4 are sequentially passed through the cable 2; the screw 5 is passed through the second through hole 44 on the clamping jaw fastening ring 4 and the first through hole 33 on the circular clamping jaw 3 and is screwed with the fixing part 11 of the charging gun shell 1, so that the clamping jaw fastening ring 4 extrudes the circular clamping jaw 3, the guide groove 41 is inserted into the clamping jaw cantilever 31, the wedge-shaped step 42 extrudes the clamping jaw cantilever 31, and then the cantilever protruding point 32 extrudes the cable 2; the tail cover 6 and the wire protection sleeve 7 are assembled, passed through the cable 2 and buckled on the clamping jaw fastening ring 4, so that the wire locking structure is formed.

[0063] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A wire locking structure of a charging gun for an electric vehicle, characterized by comprising: The charging gun shell (1), the cable (2), the circular clamping jaw (3), the clamping jaw fastening ring (4) and the fastener are included, wherein: The tail end of the charging gun shell (1) is provided with a wiring port; The cable (2) extends into the charging gun shell (1) from the wiring port; The circular clamping jaw (3) is sleeved on the cable (2) and located in the wiring port, a plurality of circularly distributed clamping jaw cantilevers (31) are arranged on the circular clamping jaw (3), the clamping jaw cantilevers (31) extend along the axial direction of the cable (2), and the end portions of the clamping jaw cantilevers (31) are provided with cantilever protrusions (32) protruding towards the cable (2); The clamping jaw fastening ring (4) is sleeved on the cable (2) and located in the wiring port, a plurality of guide grooves (41) corresponding to each clamping jaw cantilever (31) are arranged on the clamping jaw fastening ring (4), and the groove bottoms of the guide grooves (41) are provided with wedge-shaped steps (42); The fastener is used for locking the circular clamping jaw (3) and the clamping jaw fastening ring (4) and connecting with the charging gun shell (1), so that each clamping jaw cantilever (31) is inserted into the corresponding guide groove (41) and is pressed by the wedge-shaped step (42) to gather towards the cable (2), so that each cantilever protrusion (32) compresses the cable (2).

2. The wire locking structure of a charging gun for an electric vehicle according to claim 1, characterized by A fixed part (11) is arranged on the inner wall of the wiring port, the circular clamping jaw (3) abuts against the fixed part (11), the clamping jaw fastening ring (4) is located on the side of the circular clamping jaw (3) away from the fixed part (11), and the fastener is connected with the fixed part (11) after sequentially penetrating through the clamping jaw fastening ring (4) and the circular clamping jaw (3).

3. The wire locking structure of the charging gun for an electric vehicle according to claim 2, characterized by The tail end of the charging gun shell (1) is provided with a tail cover (6) for closing the wiring port, the clamping jaw fastening ring (4) is provided with a buckling part (43) protruding out of the wiring port, and the tail cover (6) is buckled with the buckling part (43).

4. The wire locking structure of the charging gun for an electric vehicle according to claim 3, characterized by A wire protection sleeve (7) is sleeved on the cable (2), a perforation (61) for the wire protection sleeve (7) to pass through is arranged on the tail cover (6), and a pressing edge (71) is arranged on the wire protection sleeve (7) and clamped between the perforation (61) and the cable (2).

5. The wire locking structure of the charging gun for an electric vehicle according to claim 2, characterized by A sealing ring (8) is arranged between the fixed part (11) and the cable (2).

6. The wire locking structure of the charging gun for an electric vehicle according to claim 5, characterized by A limiting part (12) is arranged on the fixed part (11), a gasket (9) is arranged between one end of the sealing ring (8) and the limiting part (12), and the other end of the sealing ring (8) abuts against the circular clamping jaw (3).

7. The wire locking structure of a charging gun for an electric vehicle according to claim 1, characterized by The fastener is a screw (5), a plurality of the screws (5) are circumferentially and uniformly distributed, a first through hole (33) corresponding to each screw (5) is arranged on the circular clamping jaw (3), a second through hole (44) corresponding to each screw (5) is arranged on the clamping jaw fastening ring (4), and a threaded hole (13) corresponding to each screw (5) is arranged on the charging gun shell (1).

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