A cable connection device for quick replacement of a charging gun

Abstract

The utility model discloses a cable connecting device for quick replacement charging gun belongs to charging gun cable replacement technical field. A kind of cable connecting device for quick replacement charging gun, by optimizing structure and adding protection, identification design, with significant advantages: operation relies on female end snap buckle, cooperation and color identification, realize alignment, rotation, the quick preliminary fixation of clamping, reverse rotation when separating, without complex tool, greatly improve replacement efficiency;Connection stability and strong anti-theft, anti-theft bolt is limited relative rotation by friction force again, and it is clamped into limit slot to prevent snap buckle separation, need special tool to unlock, prevent the security risk and malicious disassembly problem caused by loosening;Scene adaptation is flexible and fault tolerance is high, support straight head and elbow cable on-demand selection, color identification clear avoid misoperation, enhance device versatility and use safety.

Description

Technical Field

[0001] This utility model relates to the field of charging gun cable replacement technology, and in particular to a cable connection device for quickly replacing charging guns. Background Technology

[0002] With the widespread adoption of new energy vehicles and public charging stations, the reliability, convenience, and safety of the charging gun's cable connection—the final link in the cable connection system for quick replacement of charging guns—have become core requirements for scenarios such as public charging stations, home charging, and emergency power replenishment. However, current mainstream charging gun cable connection devices still have some problems:

[0003] (1) The operation process is cumbersome and the replacement efficiency is difficult to adapt to emergency needs. The existing devices generally adopt the structure of "multiple bolts to fasten the cable connection device for quick replacement of the charging gun + multiple sets of conductive interfaces aligned" for the cable connection device for quick replacement of the charging gun. Multiple tools are required when disassembling and assembling, and each cable replacement takes a long time. For example, when the cable of a public charging pile is damaged by crushing, the maintenance personnel need to complete the whole operation on site. During this period, the charging pile is out of service for a long time, causing users to queue up and wait. If there are emergency power replenishment for electric vehicles at highway service areas or sudden cable failures, the lengthy operation process may even delay the vehicle's travel.

[0004] (2) The connection stability and anti-theft are both lacking, and the safety hazards are prominent. On the one hand, the device lacks a targeted anti-loosening design: slight collisions of vehicles during charging and the pulling force generated by outdoor wind blowing the cable can easily cause the interface threads to loosen or the buckle to shift, resulting in poor contact of the conductive terminals and the risk of terminal burnout and arcing. On the other hand, there is no effective anti-theft structure. The cables of outdoor charging piles are easy to disassemble, which not only causes equipment damage, but also makes the charging pile unusable for a long time.

[0005] (3) Weak scene adaptability: The operation markings of the cable connection device for quick replacement of charging gun are unclear and easily cause structural damage. Most existing cables are either "straight head" or "bend head" single form, which cannot flexibly cope with complex installation scenarios. For example, when the charging pile is installed in a narrow space in the corner, the straight head cable will break due to forced bending. When the electric vehicle charging port is located at the rear of the vehicle, the bend head cable cannot fit the body and is easily scratched by passing vehicles. Utility Model Content

[0006] The purpose of this invention is to solve the problems mentioned in the background art and to provide a cable connection device for quickly replacing charging guns.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A cable connection device for quickly replacing a charging gun includes a gun tail housing and a cable head, and further includes a female connector rotatably connected to the cable head. A male connector is fixedly connected to the gun tail housing. The female connector is rotatably connected to the male connector. The female connector is provided with a female buckle, and the male connector is provided with a male buckle. The female buckle is snapped into the male buckle.

[0009] The gun tail housing is provided with a locking part, which is used to restrict the relative rotation of the female end connector and the female end connector when the female end latch and the female end latch are engaged.

[0010] Preferably, the locking part includes an anti-theft bolt threaded onto the male end connector, the anti-theft bolt penetrating the side wall of the male end connector and abutting against the female end buckle.

[0011] Preferably, both the female end buckle and the male end buckle are provided with a semi-limiting groove, and the two semi-limiting grooves are attached to form a limiting groove, and the anti-theft bolt is engaged in the limiting groove.

[0012] Preferably, the female connector is provided with a positioning mark, and the male connector is provided with a locking mark and a separation mark.

[0013] Preferably, the locking mark, separation mark, and positioning mark are all coated with pigment;

[0014] The locking and positioning marks are all the same color.

[0015] Preferably, a sealing ring is provided on the gun tail housing, and the sealing ring is located at the connection between the gun tail housing and the female end connector.

[0016] Preferably, the cable head is a straight cable.

[0017] Preferably, the cable head is a bent cable.

[0018] Compared with the prior art, this utility model provides a cable connection device for quickly replacing a charging gun, which has the following advantages:

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has significant advantages through optimized structure and the addition of protective and marking designs: In operation, it relies on the female and male end buckles, along with color markings, to achieve quick initial fixation through alignment, rotation, and snap-fit. Separation is achieved by simply rotating in the opposite direction, without the need for complex tools, greatly improving replacement efficiency; the connection stability and anti-theft features are strong. The anti-theft bolts not only limit the relative rotation of the connectors through friction but also engage with the limiting groove to prevent buckle separation. Special tools are required for unlocking, eliminating safety risks and malicious disassembly issues caused by loosening; it is flexible in scene adaptation and highly fault-tolerant, supporting the selection of straight and bent cables as needed. The clear color markings avoid misoperation, enhancing the device's versatility and safety. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the straight cable of a cable connection device for quickly replacing a charging gun proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the female connector of a cable connection device for quickly replacing a charging gun, as proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the sub-end connector of a cable connection device for quickly replacing a charging gun, as proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of a bent cable for a cable connection device for quickly replacing a charging gun, as proposed in this utility model.

[0024] In the diagram: 1. Gun tail housing; 101. Locking mark; 102. Separation mark; 2. Cable head; 201. Female connector; 202. Positioning mark; 3. Female buckle; 301. Female buckle; 302. Anti-theft bolt; 303. Semi-limiting groove; 4. Sealing ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1:

[0027] Reference Figure 1-4 A cable connection device for quickly replacing a charging gun includes a gun tail housing 1 and a cable head 2. Specifically, refer to... Figure 1 , Figure 4The cable head 2 is a straight cable or a bent cable, and also includes a female end connector 201 rotatably connected to the cable head 2. A male end connector is fixedly connected to the gun tail housing 1. The female end connector 201 is rotatably connected inside the male end connector. The female end connector 201 is provided with a female end buckle 3, and the male end connector is provided with a male end buckle 301. The female end buckle 3 is snapped into the male end buckle 301.

[0028] When the female end clip 3 and the male end clip 301 are engaged, it can prevent the cable head 2 from separating from the gun tail housing 1. The operation is simple and the disassembly is convenient.

[0029] The gun tail housing 1 is provided with a locking part, which is used to restrict the relative rotation between the female end connector 201 and the female end connector when the female end buckle 3 and the male end buckle 301 are engaged.

[0030] The locking part includes an anti-theft bolt 302 threaded onto the male end connector. The anti-theft bolt 302 penetrates the side wall of the male end connector and is in contact with the female end buckle 3. When the anti-theft bolt 302 is screwed into the male end connector and is in close contact with the female end buckle 3, it can prevent the female end buckle 3 from rotating under the action of friction.

[0031] Both the female end buckle 3 and the male end buckle 301 are provided with a semi-limiting groove 303. The two semi-limiting grooves 303 are attached to form a limiting groove. The anti-theft bolt 302 is engaged in the limiting groove. Specifically, when the anti-theft bolt 302 is engaged in the limiting groove, it can lock and limit the female end buckle 3 and the male end buckle 301 to prevent them from separating.

[0032] The female connector 201 is provided with a positioning mark 202, and the male connector is provided with a locking mark 101 and a separation mark 102. The locking mark 101, separation mark 102, and positioning mark 202 are all coated with paint. The locking mark 101 and positioning mark 202 are the same color. Specifically, the locking mark 101 and positioning mark 202 are red, and the separation mark 102 is also red. When the female connector 201 is rotated so that the red and yellow marks are in contact, the cable is locked. When the female connector 201 is rotated so that the red and yellow marks are in contact, the cable is separated.

[0033] A sealing ring 4 is provided on the gun tail housing 1, and the sealing ring 4 is located at the connection between the gun tail housing 1 and the female end connector 201.

[0034] When using this device, select a straight cable or a bent cable as the cable head 2 to be connected according to the charging scenario requirements; clean the contact surfaces of the female connector 201 on the gun tail housing 1, the female connector 201 on the cable head 2, and the surface of the sealing ring 4 to avoid impurities affecting the sealing and connection stability.

[0035] Align the female connector 201 rotatably connected to the cable head 2 with the fixed male connector on the gun tail housing 1, and insert the female connector 201 into the male connector; rotate the female connector 201 and observe the positioning mark 202 and the locking mark 101 on the male connector until the two red marks are in contact. At this time, the female end buckle 3 automatically snaps into the male end buckle 301, initially restricting the separation of the cable head 2 from the gun tail housing 1. No additional tools are required for the operation, achieving quick snap-fit.

[0036] Locate the anti-theft bolt 302 on the sub-end connector and screw it along the thread into the side wall of the sub-end connector until the end of the bolt penetrates the sub-end connector and is engaged in the complete limiting groove formed by the half-limiting groove 303 of the female end buckle 3 and the sub-end buckle 301. The engaging structure of the anti-theft bolt 302 and the limiting groove further prevents the female end buckle 3 and the sub-end buckle 301 from separating. The tight fit between the bolt and the female end buckle 3 generates friction, which restricts the relative rotation of the female end connector 201 and the sub-end connector, and avoids loosening of the connection due to vibration.

[0037] When it is necessary to disconnect and replace cable head 2, use the adapter tool to rotate the anti-theft bolt 302 on the female connector head in the opposite direction, and unscrew the bolt along the thread until the end of the bolt is completely disengaged, thereby releasing the rotation restriction and snap-off restriction on the female connector head 201.

[0038] Hold the cable head 2 and rotate the female connector 201 on it so that the positioning mark 202 on the female connector 201 gradually deviates from the locking mark 101 on the male connector until the red positioning mark 202 and the separation mark 102 on the male connector are completely aligned. At this time, the female latch 3 will automatically disengage from the male latch 301 as it is rotated, and the latching state will be released.

[0039] After the female end clip 3 and the female end clip 301 are completely separated, the female end connector 201 can be pulled out from the female end connector to remove the cable head 2, thus completing the quick separation of the cable and facilitating the replacement of a new straight or bent cable.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cable connection device for quickly replacing a charging gun, comprising a gun tail housing and a cable head, characterized in that, It also includes a female connector that is rotatably connected to the cable head, and a male connector that is fixedly connected to the gun tail housing. The female connector is rotatably connected to the male connector. The female connector is provided with a female buckle, and the male connector is provided with a male buckle. The female buckle is snapped into the male buckle. The gun tail housing is provided with a locking part, which is used to restrict the relative rotation of the female end connector and the female end connector when the female end latch and the female end latch are engaged.

2. The cable connection device for quick replacement of a charging gun according to claim 1, characterized in that, The locking part includes an anti-theft bolt threaded onto the male end connector, the anti-theft bolt penetrating the side wall of the male end connector and abutting against the female end buckle.

3. The cable connection device for quick replacement of a charging gun according to claim 2, characterized in that, Both the female end buckle and the male end buckle are provided with semi-limiting grooves. The two semi-limiting grooves are attached to form a limiting groove, and the anti-theft bolt is engaged in the limiting groove.

4. The cable connection device for quick replacement of a charging gun according to claim 2, characterized in that, The female connector is equipped with a positioning mark, and the female connector is equipped with a locking mark and a separation mark.

5. The cable connection device for quick replacement of a charging gun according to claim 4, characterized in that, The locking mark, separation mark, and positioning mark are all coated with paint; The locking and positioning marks are all the same color.

6. The cable connection device for quick replacement of a charging gun according to claim 2, characterized in that, The gun tail housing is provided with a sealing ring, which is located at the connection between the gun tail housing and the female end connector.

7. The cable connection device for quick replacement of a charging gun according to any one of claims 2-6, characterized in that, The cable head is a straight cable.

8. The cable connection device for quick replacement of a charging gun according to any one of claims 2-6, characterized in that, The cable head is a bent cable.

Images