Charging gun with improved structure

Abstract

The utility model discloses a charging gun with an improved structure, which comprises a charging gun shell, a charging gun head, a cable, a tail cover and a wire fixing assembly, the wire fixing assembly comprises two wire pressing blocks, the clamping surface of each wire pressing block is respectively provided with a wedge-shaped salient point, the middle part of each wire pressing block is respectively provided with a screw mounting hole, and the screw mounting hole is provided with a screw hole. The charging gun shell is provided with studs corresponding to the wire pressing blocks in the shell accommodating cavity, each wire pressing block is provided with a locking screw penetrating through the corresponding screw mounting hole, and each locking screw is in threaded connection with the corresponding stud; the inner wall of the accommodating cavity of the shell is respectively propped against each wire pressing block inwards, and the two wire pressing blocks are matched with each other and clamp a cable; the periphery of the cable is sleeved with a soft rubber waterproof ring located between the cable fixing assembly and the tail cover, the inner wall of the soft rubber waterproof ring is tightly attached to the cable, and the outer wall of the soft rubber waterproof ring is tightly attached to the inner wall of the containing cavity of the shell. By means of the structural design, the LED lamp has the advantages of being novel in design, good in waterproof performance, simple in wire fixing structure and convenient to install.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle charging device technology, and in particular to a charging gun with improved structure. Background Technology

[0002] The charging gun is one of the core devices for charging new energy vehicles. Its structure mainly consists of a charging gun housing, a cable, and a charging gun head (plug). The cable extends into the charging gun housing, and the charging gun head is installed at the front end of the housing. The charging gun head is the part that connects the charging gun to the charging interface of the new energy vehicle. The design of the charging gun head must comply with relevant standards, such as national standards, European standards, or American standards, to ensure compatibility and safety. The charging gun head contains charging pins that are electrically connected to the cable.

[0003] Among them, Chinese utility model patent with patent number ZL202421046048.1 discloses a charging gun with a fixed wire structure, and specifically discloses the following technical solution: the two ends of the charging gun body are respectively equipped with a charging gun head and a tail cover, the charging gun body is provided with a wire cavity, and a wire clamping structure for clamping the cable is provided in the wire cavity. The wire clamping structure includes an upper clamping cover and a lower clamping cover. The upper clamping cover and the lower clamping cover are screwed together to form a ring for the cable to pass through. Multiple protruding nails are fixed on the inner ring wall of the upper clamping cover and the inner ring wall of the lower clamping cover. The cable is interference-clamped between the upper clamping cover and the lower clamping cover. An arc-shaped mounting groove is opened on the side wall of the charging gun body. The arc-shaped mounting groove connects to the wire cavity, and a hand-mounted cover can be detachably fastened at the arc-shaped mounting groove.

[0004] In the above-mentioned charging gun assembly process, after the clamping cable cover is installed, the clamping cable lower cover is inserted radially along the clamping cable cover through the arc-shaped mounting groove. Then, the clamping cable upper cover is screwed to the clamping cable lower cover and the cable is clamped. Finally, the hand-shaped cover is fastened and the hand-shaped cover limits the clamping cable lower cover.

[0005] It should be noted that the existing charging guns have the following drawbacks, specifically:

[0006] Defect 1: An arc-shaped mounting groove needs to be made in the charging gun body. The arc-shaped mounting groove serves as the mounting channel for the clamping line cover. During installation, the clamping line cover is inserted into the wire cavity through the arc-shaped mounting groove, and the arc-shaped mounting groove also needs to be closed by the hand-shaped cover. The above-mentioned wire fixing structure has the problems of complex structure and inconvenient installation.

[0007] Defect 2: Due to the lack of an effective waterproof structure, the charging gun has poor waterproof performance. Utility Model Content

[0008] The purpose of this utility model is to provide a charging gun with an improved structure to address the shortcomings of the existing technology. This improved charging gun has a novel design, good waterproof performance, simple wiring structure, and is easy to install.

[0009] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0010] An improved charging gun includes a charging gun housing, a charging gun head, a cable, a tail cap, and a cable fixing assembly, with the charging gun head mounted on the front end of the charging gun housing.

[0011] The charging gun housing has a rearward-opening housing cavity inside, into which the cable extends, the cable fixing assembly is located inside the housing cavity, and the tail cap is installed at the rear opening of the housing cavity.

[0012] The cable fixing assembly includes two clamping blocks facing each other on the outside of the cable, and each clamping block has a wedge-shaped protrusion on its clamping surface.

[0013] Each wire clamping block has a screw mounting hole in the middle. The charging gun housing has studs corresponding to each wire clamping block in the housing cavity. Each wire clamping block is equipped with a locking screw that passes through the corresponding screw mounting hole, and each locking screw is threaded to the corresponding stud. The inner wall of the housing cavity abuts against each wire clamping block, and the two wire clamping blocks cooperate to clamp the cable.

[0014] The cable is surrounded by a soft rubber waterproof ring located between the cable fixing assembly and the tail cap. The soft rubber waterproof ring is locked between the charging gun housing and the tail cap. The inner wall of the soft rubber waterproof ring is in close contact with the cable, and the outer wall of the soft rubber waterproof ring is in close contact with the inner wall of the housing cavity.

[0015] The inner wall of the soft rubber waterproof ring is provided with a plurality of inner protrusions arranged at intervals along the extension direction of the cable, and the outer wall of the soft rubber waterproof ring is provided with a plurality of outer protrusions arranged at intervals along the extension direction of the cable.

[0016] The tail cap is in the shape of a round sleeve, and is fitted around the cable and fastened to the rear end of the charging gun housing.

[0017] The inner wall of the outer shell accommodating cavity is provided with an outer shell block corresponding to the soft rubber waterproof ring, and the inner wall of the tail cap is provided with a number of protrusions corresponding to the soft rubber waterproof ring. The soft rubber waterproof ring is limited and locked between the outer shell block and the protrusions.

[0018] The tail cap has four inwardly protruding buckles inside. The rear end of the charging gun housing has buckle holes corresponding to each buckle. The tail cap is fitted onto the outer periphery of the rear end of the charging gun housing, and each buckle is fastened into the corresponding buckle hole.

[0019] The end of the protruding post is provided with a backhoe part, which abuts against the rear end of the charging gun housing.

[0020] The outer wall of the soft rubber waterproof ring has a positioning protrusion at the rear end, which is an integral part of the soft rubber waterproof ring. The rear edge of the charging gun shell has a positioning groove corresponding to the positioning protrusion of the soft rubber waterproof ring, and the positioning protrusion of the soft rubber waterproof ring is embedded in the positioning groove of the charging gun shell.

[0021] The rear end of the soft rubber waterproof ring is provided with an extension that passes through the tail cap and extends to the rear end of the tail cap. The extension is an integral part of the soft rubber waterproof ring.

[0022] The soft rubber waterproof ring is a silicone ring.

[0023] Compared with the prior art, the present invention has the following beneficial effects, specifically:

[0024] 1. Each wire clamping block in the wire fixing assembly is clamped and fixed by locking screws, and each wire clamping block clamps the cable by the inward pressing action of the inner wall of the housing cavity; compared with the wire fixing assembly of the prior art, the wire fixing assembly of this utility model has a simpler structure and is easier to install;

[0025] 2. Because the inner wall of the soft rubber waterproof ring is in close contact with the cable and the outer wall of the soft rubber waterproof ring is in close contact with the inner wall of the outer shell cavity, the soft rubber waterproof ring can effectively achieve waterproof sealing at the rear opening of the outer shell cavity, thereby effectively improving the waterproof performance of the charging gun.

[0026] 3. Therefore, this utility model has the advantages of novel design, good waterproof performance, simple wiring structure and convenient installation. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0028] Figure 1 This is a schematic diagram of the structure of this utility model.

[0029] Figure 2 This is an exploded view of the present invention.

[0030] Figure 3 This is a cross-sectional schematic diagram of the present invention.

[0031] Figure 4 This is a partial cross-sectional schematic diagram of the present invention.

[0032] Figure 5 This is a schematic diagram of the pressure block of this utility model.

[0033] Figure 6 This is a schematic diagram of the structure of the soft rubber waterproof ring of this utility model.

[0034] Figure 7 This is a schematic diagram of the tail cap structure of this utility model.

[0035] Figure 8 This is a partial structural diagram of the charging gun housing of this utility model.

[0036] Figure 9 This is a schematic diagram showing the connection between the tail cap and the charging gun housing.

[0037] exist Figures 1 to 9 This includes:

[0038] 1-Charging gun housing; 11-Housing cavity; 12-Housing block; 13-Alignment groove; 14-Snap hole; 2-Charging gun head; 3-Cable; 4-Tail cap; 41-Protruding post; 411-Backhoe part; 42-Snap position; 5-Wire fixing assembly; 51-Wire clamping block; 511-Clamping surface; 512-Wedge-shaped protrusion; 513-Screw mounting hole; 52-Stud; 53-Locking screw; 6-Soft rubber waterproof ring; 61-Inner protrusion; 62-Outer protrusion; 63-Alignment protrusion; 64-Extension. Detailed Implementation

[0039] The present invention will now be described in conjunction with specific embodiments.

[0040] Example 1, as Figures 1 to 4 As shown, a structurally improved charging gun includes a charging gun housing 1, a charging gun head 2, a cable 3, a tail cap 4, and a cable fixing assembly 5. The charging gun head 2 is installed at the front end of the charging gun housing 1.

[0041] Among them, such as Figures 2 to 4 As shown, the charging gun housing 1 has a rearward-opening housing cavity 11 inside, the cable 3 extends into the housing cavity 11, the cable fixing assembly 5 is located inside the housing cavity 11, and the tail cap 4 is installed at the rear opening of the housing cavity 11.

[0042] Furthermore, such as Figures 2 to 5 As shown, the wire fixing assembly 5 includes two wire clamping blocks 51 that are opposite each other on the outside of the cable 3, and each wire clamping block 51 has a wedge-shaped protrusion 512 on its clamping surface 511.

[0043] Furthermore, such as Figures 2 to 5As shown, each wire clamping block 51 has a screw mounting hole 513 in the middle part. The charging gun housing 1 has a stud 52 corresponding to each wire clamping block 51 in the housing cavity 11. Each wire clamping block 51 is equipped with a locking screw 53 that passes through the corresponding screw mounting hole 513, and each locking screw 53 is threadedly connected to the corresponding stud 52. The inner wall of the housing cavity 11 abuts against each wire clamping block 51, and the two wire clamping blocks 51 cooperate to clamp the cable 3.

[0044] In addition, such as Figure 1 , Figure 2 as well as Figure 4 As shown, a soft rubber waterproof ring 6 is fitted around the cable 3, located between the cable fixing assembly 5 and the tail cap 4. The soft rubber waterproof ring 6 is locked and secured between the charging gun housing 1 and the tail cap 4. The inner wall of the soft rubber waterproof ring 6 is in close contact with the cable 3, and the outer wall of the soft rubber waterproof ring 6 is in close contact with the inner wall of the housing cavity 11. It should be noted that the soft rubber waterproof ring 6 in this embodiment can be a silicone ring; however, the above materials do not constitute a limitation on this embodiment, that is, the soft rubber waterproof ring 6 in this embodiment can also be injection molded from other soft rubber materials.

[0045] It should be noted that, for the charging gun housing 1 of this embodiment, the housing cavity 11 corresponding to the position of the cable fixing assembly 5 adopts a constricted structure, that is, the inner wall of the housing cavity 11 at this position gradually tightens inward from back to front; when the cable fixing assembly 5 of embodiment 1 is installed, each clamping block 51 is placed into the housing cavity 11, and each clamping block 51 is clamped and fixed to the stud 52 position of the charging gun housing 1 by the locking screw 53. During this process, the inner wall of the housing cavity 11 will push against each clamping block 51 inward and make each clamping block 51 press down on the cable 3. At this time, the two clamping blocks 51 cooperate to clamp and fix the cable 3, so as to achieve the purpose of fixing the cable 3 and prevent the cable 3 from moving or rotating relative to the charging gun housing 1.

[0046] It should be emphasized that in the wire fixing assembly 5 of this embodiment, each wire pressing block 51 is pressed and fixed by locking screws 53, and each wire pressing block 51 presses the cable 3 by means of the inward pushing action of the inner wall of the housing cavity 11; compared with the wire fixing assembly 5 of the prior art, the wire fixing assembly 5 of this embodiment is simpler in structure and easier to install.

[0047] It should be further emphasized that, for the soft rubber waterproof ring 6 that is locked between the tail cap 4 and the charging gun housing 1, since the inner wall of the soft rubber waterproof ring 6 is in close contact with the cable 3 and the outer wall of the soft rubber waterproof ring 6 is in close contact with the inner wall of the housing cavity 11, the soft rubber waterproof ring 6 can effectively achieve waterproof sealing at the rear opening of the housing cavity 11, thereby effectively improving the waterproof performance of the charging gun; compared with the prior art, the charging gun with the structural improvement of this embodiment has better waterproof performance.

[0048] In summary, the improved charging gun of this embodiment has the advantages of novel design, good waterproof performance, simple wiring structure and convenient installation.

[0049] Example 2, as Figure 6 As shown, the difference between this embodiment 2 and embodiment 1 is that: the inner wall of the soft rubber waterproof ring 6 is provided with a plurality of inner protrusions 61 arranged sequentially and at intervals along the extension direction of the cable 3, and the outer wall of the soft rubber waterproof ring 6 is provided with a plurality of outer protrusions 62 arranged sequentially and at intervals along the extension direction of the cable 3.

[0050] The inner wall of the soft rubber waterproof ring 6 is in close contact with the cable 3 through multiple inner protrusions 61. This structural design enables the soft rubber waterproof ring 6 and the cable 3 to have multiple waterproof structures, so as to effectively ensure the sealing and waterproof performance between the soft rubber waterproof ring 6 and the cable 3.

[0051] Similarly, the outer wall of the soft rubber waterproof ring 6 is in close contact with the inner wall of the outer shell cavity 11 through multiple outer protrusions 62. This structural design enables the soft rubber waterproof ring 6 and the charging gun shell 1 to have multiple waterproof structures, so as to effectively ensure the sealing and waterproof performance between the soft rubber waterproof ring 6 and the charging gun shell 1.

[0052] Example 3, as Figure 1 , Figure 2 , Figure 4 , Figure 7 as well as Figure 8 As shown, the difference between this embodiment 3 and embodiment 1 is that the tail cover 4 is in the shape of a round sleeve, the tail cover 4 is fitted around the cable 3, and the tail cover 4 is fastened to the rear end of the charging gun housing 1.

[0053] The inner wall of the outer shell cavity 11 is provided with an outer shell block 12 corresponding to the soft rubber waterproof ring 6, and the inner wall of the tail cover 4 is provided with a number of protrusions 41 corresponding to the soft rubber waterproof ring 6. The soft rubber waterproof ring 6 is limited and locked between the outer shell block 12 and the protrusions 41.

[0054] It should be noted that the soft rubber waterproof ring 6 in this embodiment 3 is limited and locked by the outer shell block 12 and the protrusion 41 of the tail cover 4, which has the advantage of convenient installation.

[0055] Example 4, as Figures 7 to 9As shown, the difference between this embodiment 4 and embodiment 3 is that: the tail cover 4 has four inwardly protruding buckles 42 inside, and the rear end of the charging gun housing 1 has buckle holes 14 corresponding to each buckle 42. The tail cover 4 is fitted onto the outer periphery of the rear end of the charging gun housing 1, and each buckle 42 is fastened into the corresponding buckle hole 14; the end of the protrusion 41 is provided with a backhoe part 411, and the backhoe part 411 of the protrusion 41 abuts against the rear end of the charging gun housing 1 outward.

[0056] During the process of attaching the tail cap 4 to the rear end of the charging gun housing 1, the four fastening positions 42 of the tail cap 4 are respectively fastened into the corresponding fastening holes 14. Since the backhoe part 411 of the protrusion 41 is located on the inner side of the rear end of the charging gun housing 1 and the backhoe part 411 faces outward and abuts against the rear end of the charging gun housing 1, the function of the backhoe part 411 is to prevent the fastening positions 42 of the tail cap 4 from popping open, thereby preventing the tail cap 4 from falling off during use.

[0057] Example 5, as Figure 2 , Figure 6 as well as Figure 8 As shown, the difference between this fifth embodiment and the first embodiment is that: the rear end of the outer wall of the soft rubber waterproof ring 6 is provided with a positioning protrusion 63, the positioning protrusion 63 and the soft rubber waterproof ring 6 are an integral structure, and the rear edge of the charging gun housing 1 is provided with a positioning groove 13 corresponding to the positioning protrusion 63 of the soft rubber waterproof ring 6, and the positioning protrusion 63 of the soft rubber waterproof ring 6 is embedded in the positioning groove 13 of the charging gun housing 1.

[0058] During the process of installing the soft rubber waterproof ring 6 into the housing cavity 11, the charging gun with the improved structure in this embodiment 5 can achieve accurate and rapid positioning of the soft rubber waterproof ring 6 by cooperating with the alignment protrusion 63 and the alignment groove 13.

[0059] Example 6, as Figure 1 , Figure 2 , Figure 4 as well as Figure 6 As shown, the difference between this sixth embodiment and the first embodiment is that the rear end of the soft rubber waterproof ring 6 is provided with an extension 64 that passes through the tail cap 4 and extends to the rear end side of the tail cap 4. The extension 64 and the soft rubber waterproof ring 6 are an integral structure.

[0060] The extension 64 in this embodiment can effectively increase the contact connection between the soft rubber waterproof ring 6 and the cable 3, and the extension 64 is snapped into the inside of the tail cap 4. This structural design can further improve the waterproof performance of the charging gun in this embodiment.

[0061] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A structurally improved charging gun, comprising a charging gun housing (1), a charging gun head (2), a cable (3), a tail cap (4), and a cable fixing assembly (5), wherein the charging gun head (2) is mounted on the front end of the charging gun housing (1); The charging gun housing (1) has a rearward-opening housing cavity (11) inside, the cable (3) extends into the housing cavity (11), the cable fixing assembly (5) is located in the housing cavity (11), and the tail cap (4) is installed at the rear opening of the housing cavity (11). The wire fixing assembly (5) includes two wire clamping blocks (51) facing each other on the outside of the cable (3), and each wire clamping block (511) has a wedge-shaped protrusion (512) on its clamping surface (511). Its features are: Each wire clamping block (51) has a screw mounting hole (513) in the middle. The charging gun housing (1) has a stud (52) in the housing cavity (11) corresponding to each wire clamping block (51). Each wire clamping block (51) is equipped with a locking screw (53) that passes through the corresponding screw mounting hole (513), and each locking screw (53) is threadedly connected to the corresponding stud (52). The inner wall of the housing cavity (11) abuts against each wire clamping block (51) inward. The two wire clamping blocks (51) cooperate and clamp the cable (3). The cable (3) is fitted with a soft rubber waterproof ring (6) located between the wire fixing assembly (5) and the tail cap (4), and the soft rubber waterproof ring (6) is locked between the charging gun housing (1) and the tail cap (4). The inner wall of the soft rubber waterproof ring (6) is in close contact with the cable (3), and the outer wall of the soft rubber waterproof ring (6) is in close contact with the inner wall of the housing cavity (11).

2. The improved charging gun according to claim 1, characterized in that: The inner wall of the soft rubber waterproof ring (6) is provided with a plurality of inner protrusions (61) arranged at intervals along the extension direction of the cable (3), and the outer wall of the soft rubber waterproof ring (6) is provided with a plurality of outer protrusions (62) arranged at intervals along the extension direction of the cable (3).

3. The improved charging gun according to claim 1, characterized in that: The tail cap (4) is in the shape of a round sleeve. The tail cap (4) is fitted around the cable (3) and is fastened to the rear end of the charging gun housing (1). The inner wall of the outer shell cavity (11) is provided with an outer shell block (12) corresponding to the soft rubber waterproof ring (6), and the inner wall of the tail cap (4) is provided with a plurality of protrusions (41) corresponding to the soft rubber waterproof ring (6). The soft rubber waterproof ring (6) is limited and locked between the outer shell block (12) and the protrusions (41).

4. The improved charging gun according to claim 3, characterized in that: The tail cap (4) has four inwardly protruding buckles (42) inside. The rear end of the charging gun housing (1) is provided with buckle holes (14) corresponding to each buckle (42). The tail cap (4) is fitted around the rear end of the charging gun housing (1), and each buckle (42) is fastened into the corresponding buckle hole (14). The end of the protrusion (41) is provided with a backhoe part (411), and the backhoe part (411) of the protrusion (41) abuts against the rear end of the charging gun housing (1) outward.

5. The improved charging gun according to claim 1, characterized in that: The rear end of the outer wall of the soft rubber waterproof ring (6) is provided with a positioning protrusion (63). The positioning protrusion (63) and the soft rubber waterproof ring (6) are an integral structure. The rear edge of the charging gun shell (1) is provided with a positioning groove (13) corresponding to the positioning protrusion (63) of the soft rubber waterproof ring (6). The positioning protrusion (63) of the soft rubber waterproof ring (6) is embedded in the positioning groove (13) of the charging gun shell (1).

6. The improved charging gun according to claim 1, characterized in that: The rear end of the soft rubber waterproof ring (6) is provided with an extension (64) that passes through the tail cap (4) and extends to the rear end side of the tail cap (4). The extension (64) and the soft rubber waterproof ring (6) are an integral structure.

7. The improved charging gun according to claim 1, characterized in that: The soft rubber waterproof ring (6) is a silicone ring.

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