A charging pile charging head

Abstract

The utility model provides a charging pile charging head relates to charging pile technical field, including plug, electric core, shell, handle and wiring harness fixed cover, its characterized in that: one end of handle is fixedly connected with one end of shell, the front end of shell is equipped with the integrated mounting portion, and one elastic buckle is hinged on the mounting portion through a rotating shaft, the position of the end side of the handle inside shell is equipped with a cavity, and one control switch is embedded in the opening of the cavity wall, the wiring harness fixed cover is connected through a lock nut and handle tail end screw thread, the plug is fixedly installed on the end side of shell, and the electric core is evenly installed on the plug, the utility model discloses through the lever structure design of elastic buckle, makes the user to use smaller force to complete the unlocking operation, and the plug-in charging head is more relaxed. The elastic buckle mechanism can be automatically locked when inserting, effectively prevent the accidental drop in the charging process.

Description

Technical Field

[0001] This utility model relates to the field of charging pile technology, specifically a charging head for a charging pile. Background Technology

[0002] The charging head of an electric vehicle charging station is a key component for realizing power transmission. Its connection reliability and ease of operation with the vehicle's charging socket directly affect user experience and safety.

[0003] Currently, most mainstream charging heads on the market use electromagnetic locking mechanisms. This mechanism typically includes components such as an electromagnet, a drive board, and a locking pin. It relies on the magnetic force generated by the charging pile to control the extension and retraction of the locking pin, thus achieving locking and unlocking. While this electronically controlled locking method achieves automatic locking, it also has significant drawbacks: First, its complex internal structure and numerous components lead to higher production costs and a relatively increased probability of malfunction. Second, the entire system depends on the charging pile's power supply; if an unexpected power outage occurs during charging, the electromagnetic lock may fail to unlock properly, posing a safety hazard and requiring an additional emergency mechanical unlocking device, increasing design complexity. Furthermore, the electromagnetic lock mechanism is relatively heavy, making the charging head bulky and more difficult for users to plug and unplug. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a charging head for a charging pile, which has the characteristics of simple structure, reliable locking, no dependence on external power, and labor-saving operation.

[0005] This utility model provides a charging head for a charging pile, including a plug, a battery cell, a shell, a handle, and a wire harness fixing sleeve. The handle is fixedly connected to one end of the shell; the front end of the shell has an integrally formed mounting portion, and an elastic buckle is hinged to the mounting portion via a pivot; a cavity is provided inside the shell near the handle end, and a control switch is embedded in the opening of the cavity wall; the wire harness fixing sleeve is threadedly connected to the handle end via a locking nut; the plug is fixedly installed on the end side of the shell; and the battery cells are evenly installed on the plug.

[0006] In a preferred embodiment, the elastic buckle is a long-arm lever structure, which includes a pressing part located above and behind the pivot and a hook part located below and in front of the pivot. The hook part is provided with a wedge-shaped locking block on its inner side. A set of torsion springs is sleeved on the pivot and provides pre-tightening force for the elastic buckle.

[0007] In a preferred embodiment, the end of the mounting part is provided with only a groove, and the rotating shaft passes through the groove and the elastic buckle.

[0008] In a preferred embodiment, the control switch is slidably disposed inside the opening of the handle, and a sealing ring is pressed between the control switch and the inner wall of the handle.

[0009] In a preferred embodiment, the wire harness fixing sleeve includes a sleeve body and a locking nut; the sleeve body is conical in shape, with external threads at its small end and multiple annular ribs on the inner wall of its large end; the locking nut has an inner conical hole, which is threaded to the end of the handle and shrinks by squeezing the sleeve body.

[0010] In the preferred technical solution, the outer side of the wire harness fixing sleeve is provided with reinforcing ribs.

[0011] In a preferred embodiment, the outer shell is formed by welding a left shell and a right shell together.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] Easy and effortless to operate: The lever structure design of the elastic buckle allows users to complete the unlocking operation with less force, making it easier to plug and unplug the charging head.

[0014] Safe and reliable connection: The flexible latch mechanism automatically locks upon insertion, effectively preventing accidental dislodgement during charging. The wedge-shaped locking block and torsion spring design ensure smooth locking and a secure lock.

[0015] Robust and durable construction: The unique design of the wire harness fixing sleeve effectively eliminates cable stress and prevents damage to internal circuitry caused by frequent bending. The outer shell is butt-welded, and the handle has internal reinforcing ribs, resulting in high overall structural strength and a long service life.

[0016] Excellent user experience: The handle has an anti-slip rubber pad on the bottom, which increases the friction and comfort of the grip, making the operation more stable and safe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This utility model Figure 1 A magnified structural diagram of part A;

[0019] In the diagram: 1-Plug; 2-Battery cell; 3-Outer shell; 4-Handle; 5-Wire harness fixing sleeve; 6-Control switch; 7-Elastic buckle; 8-Anti-slip rubber sheet; 31-Left shell; 32-Right shell; 33-Mounting part; 34-Groove; 51-Sleeve body; 52-Locking nut; 53-Reinforcing rib; 61-Sealing ring; 71-Rotating shaft; 72-Pressing part; 73-Hook part; 511-Annular convex rib; 731-Wedge-shaped locking block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1 and Figure 2 As shown

[0022] A charging head for a charging station includes a plug 1, a battery cell 2, a housing 3, a handle 4, and a wiring harness fixing sleeve 5. One end of the handle 4 is fixedly connected to one end of the housing 3. The front end of the housing 3 has an integrally formed mounting part 33, and an elastic buckle 7 is hinged to the mounting part 33 via a pivot 71. A cavity is provided inside the housing 3 near the end of the handle 4, and a control switch 6 is embedded in the opening of the cavity wall. The wiring harness fixing sleeve 5 is threadedly connected to the tail end of the handle 4 via a locking nut 52. The plug 1 is fixedly installed on the end of the housing 3, and the battery cell 2 is evenly installed on the plug 1. The function of the mounting part 33 is to provide a sturdy and integral base for mounting and supporting the elastic buckle mechanism. The elastic buckle 7 and the pivot 71 together constitute a movable mechanical locking device for automatically locking when inserted into the charging socket. The cavity (not shown) provides a protected internal mounting space for the control switch 6, preventing the switch from being directly exposed and damaged. The control switch 6 allows the user to operate it directly while holding the charging head (e.g., start / stop charging). The locking nut 52 is used to apply and adjust the locking force to secure the wire harness retaining sleeve.

[0023] The elastic buckle 7 is a long-arm lever structure, comprising a pressing part 72 located above and behind the pivot 71 and a hook part 73 located below and in front of the pivot 71. A wedge-shaped locking block 731 is provided inside the hook part 73. A torsion spring (not shown) is fitted onto the pivot 71 and provides preload to the elastic buckle 7. The long-arm lever structure enables effortless operation; the user can unlock the buckle 73 by pressing the pressing part 72 with minimal force. The pressing part 72 serves as the point of application for the user to apply the unlocking force. The hook part 73 and the wedge-shaped locking block 731 guide and slide into the locking groove of the charging socket during insertion, and their shape ensures reliable locking, preventing accidental dislodgement. The torsion spring provides an automatic rebound force to the buckle, allowing it to automatically engage in the locking position after insertion and automatically reset after unlocking.

[0024] The mounting part 33 has a groove 34 at its end, through which the rotating shaft 71 passes and the elastic buckle 7. The groove 34 is used to accommodate and limit the rotating shaft 71, ensuring that the rotating shaft 71 can be accurately installed and remain stable, so that the elastic buckle 7 can rotate smoothly around a predetermined axis.

[0025] The control switch 6 is slidably disposed inside the opening of the handle 4, and a sealing ring 61 is pressed between the control switch 6 and the inner wall of the handle 4. The sealing ring 61 is used to form a seal between the switch and the handle to prevent moisture, dust and other contaminants from entering the charging head from the switch mounting gap, thus providing a protective function.

[0026] The wire harness fixing sleeve 5 includes a sleeve body 51 and a locking nut 52. The sleeve body 51 is conical in shape, with external threads at its small end and multiple annular ribs 511 on the inner wall of its large end. The locking nut 52 has an inner conical hole, which is threaded to the tail end of the handle 4 and contracts by compressing the sleeve body 51. The sleeve body 51 is used to wrap and protect the cable. The annular ribs 511 are used to increase the friction with the cable sheath when the sleeve body 51 contracts and to evenly distribute the clamping force, avoiding stress concentration that could damage the cable.

[0027] The outer side of the wire harness fixing sleeve 5 is provided with reinforcing ribs 53. This enhances the structural strength and rigidity and facilitates the installation of the wire harness fixing sleeve 5.

[0028] The outer shell 3 is formed by welding together the left shell 31 and the right shell 32.

[0029] A non-slip rubber sheet 8 is fixedly provided on the lower side of the handle 4. This increases the friction between the handle 4 and the user's hand, improves the comfort and stability of the grip, and prevents slippage during operation.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A charging head for a charging station, comprising a plug (1), a battery cell (2), a housing (3), a handle (4), and a wire harness fixing sleeve (5), characterized in that: One end of the handle (4) is fixedly connected to one end of the outer shell (3). The front end of the outer shell (3) is provided with an integrally formed mounting part (33). An elastic buckle (7) is hinged to the mounting part (33) through a rotating shaft (71). A cavity is provided inside the outer shell (3) and near the end of the handle (4). A control switch (6) is embedded in the opening of the wall of the cavity. The wire harness fixing sleeve (5) is threadedly connected to the tail end of the handle (4) through a locking nut (52). The plug (1) is fixedly installed on the end of the outer shell (3). The battery cell (2) is evenly installed on the plug (1).

2. The charging head for a charging pile according to claim 1, characterized in that: The elastic buckle (7) is a long-arm lever structure, which includes a pressing part (72) located above and behind the pivot (71) and a hook part (73) located below and in front of the pivot (71). The hook part (73) has a wedge-shaped locking block (731) on its inner side. A set of torsion springs is sleeved on the pivot (71) and provides pre-tightening force for the elastic buckle (7).

3. A charging head for a charging pile according to claim 1 or 2, characterized in that: The mounting part (33) has a groove (34) at its end, and the rotating shaft (71) passes through the groove (34) and the elastic buckle (7).

4. A charging head for a charging pile according to claim 1, characterized in that: The control switch (6) is slidably disposed inside the opening of the handle (4), and a sealing ring (61) is pressed between the control switch (6) and the inner wall of the handle (4).

5. A charging head for a charging pile according to claim 1, characterized in that: The wire harness fixing sleeve (5) includes a sleeve body (51) and a locking nut (52); the sleeve body (51) is conical, with external threads at its small end and multiple annular ribs (511) on the inner wall of its large end; the locking nut (52) has an inner conical hole, which is threaded to the tail end of the handle (4) and shrinks by squeezing the sleeve body (51).

6. A charging head for a charging pile according to claim 1, characterized in that: The outer side of the wire harness fixing sleeve (5) is provided with reinforcing ribs (53).

7. A charging head for a charging pile according to claim 1, characterized in that: The outer shell (3) is formed by welding together the left shell (31) and the right shell (32).

8. A charging head for a charging pile according to claim 1, characterized in that: The handle (4) is fixedly provided with an anti-slip rubber sheet (8) on the lower side.

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