A high-power direct-current charging gun with anti-falling structure

Abstract

The utility model discloses a high -power direct current charging gun with prevent shedding structure, the utility model relates to charging gun technical field. Including charging gun, the dust cover is equipped with the export end of charging gun, the gun head is arranged in dust cover inside still includes: locking assembly, locking assembly is away from the outer wall fixedly connected with locking assembly of dust cover, locking assembly includes the plug, the outer wall of plug below is connected with the connector and is connected, through the rotation cooperation of arc plate and the clamping groove in prevent falling assembly, the second reset spring's thrust effect, can when the plug and the connector preliminary clamping form first heavy fixed, limit both relative displacement, the clamping of the bolt and arc plate positioning hole in locking assembly subsequently, the sustained force of the combination thrust spring forms second heavy reinforcement, makes double -protection link more closely, compared with single protection structure, more adaptation complex use scene under the connection stability demand.

Description

Technical Field

[0001] This utility model relates to the field of charging gun technology, specifically a high-power DC charging gun with an anti-drop structure. Background Technology

[0002] Currently, some high-power DC charging guns on the market rely solely on the locking mechanism of a pin and a slot, lacking an auxiliary anti-detachment mechanism. After long-term use, wear and tear on the components can lead to a decrease in locking force, increasing the risk of detachment. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a high-power DC charging gun with an anti-detachment structure, solving the problem of the lack of an auxiliary anti-detachment mechanism.

[0005] (II) Technical Solution

[0006] To solve the above problems, this utility model achieves this through the following technical solution: a high-power DC charging gun with an anti-detachment structure, comprising a charging gun, a dust cover fitted at the outlet end of the charging gun, a gun head disposed inside the dust cover, and a locking assembly, wherein the locking assembly is fixedly connected to the outer wall of the locking assembly away from the dust cover; the locking assembly includes a plug, a connector is snapped into the outer wall below the plug, a sleeve is fixedly connected to the outer wall of the connector, a thrust spring is fixedly connected to the inner wall of the sleeve, and a pin is slidably connected to the end of the thrust spring away from the inner wall of the sleeve. The locking assembly makes the connection between the charging gun and the wire more stable. Through the cooperation of the thrust spring and the pin, a certain force can be provided during connection, enhancing the reliability of the connection and reducing the possibility of detachment.

[0007] Preferably, the outer wall of the pin is slidably connected to the inner wall of the sleeve, and the pin is fixedly connected to a handle extending out of the inner wall of the sleeve. The slidable connection between the pin and the inner wall of the sleeve ensures the smooth operation of the pin, and the handle makes it easier for the operator to control the pin, making the connection and separation operation more convenient and labor-saving, and improving the ease of use.

[0008] Preferably, a wire is fixedly connected to the inner wall of the plug, and a conductive plate is fixedly connected to one end of the wire located on the inner wall of the plug. A conductive plate is also fixedly connected to the inner wall of the connector. The arrangement of the wire and the conductive plate enables the transmission of electrical energy inside the charging gun. Through the contact between the plug and the conductive plate inside the connector, the stable transmission of current is ensured, providing a reliable conductive foundation for DC power transmission. Moreover, this structure helps to reduce the loss during the transmission of electrical energy.

[0009] Preferably, a slot is formed on the inner wall above the connector, a first guide rod is fixedly connected to the inner wall of the connector, a first return spring is sleeved on the outside of the first guide rod, the inner wall of the connector is slidably connected to the outer wall of the conductive sheet, the first guide rod passes through the conductive sheet inside the connector, an anti-disengagement component is slidably connected to the inner wall of the plug, the slot located at the pin is flush with the outer wall above the connector, the cooperation of the slot and the anti-disengagement component further enhances the anti-disengagement performance of the charging gun connection, forming double protection, the first guide rod guides the movement of the conductive sheet to ensure the accuracy of the conductive sheet contact, and the first return spring can promptly reset the conductive sheet after it is subjected to force to ensure the stability of the conductivity.

[0010] Preferably, the anti-detachment component includes an arc-shaped plate, the outer wall of which extends to the inner wall below the plug, a positioning hole is formed through the inner wall of the arc-shaped plate, a second guide rod is connected through the inner wall of the arc-shaped plate, and a second return spring is sleeved on the outside of the second guide rod. The structure of the arc-shaped plate allows it to better cooperate with the corresponding part of the connector, enhancing the anti-detachment effect. The second guide rod provides guidance for the movement of the arc-shaped plate, ensuring the accuracy of its movement. The second return spring enables the arc-shaped plate to return to its original position in time after being subjected to force, ensuring that the anti-detachment component continues to function effectively.

[0011] Preferably, the outer walls at both ends of the second guide rod are fixedly connected to the inner wall of the plug, the inner wall of the arc plate is slidably connected to the outer wall of the second guide rod, one end of the second return spring is fixedly connected to the outer wall above the arc plate, and the other end of the second return spring is fixedly connected to the inner wall of the plug. The outer wall of the arc plate corresponds to the inner wall of the slot. The fixing method of the second guide rod ensures its stability and provides reliable support for the sliding of the arc plate. The connection method of the second return spring can provide a continuous force to the arc plate, making it tightly fit with the slot, further improving the anti-drop performance, making the connection of the charging gun more stable, and adapting to various usage environments.

[0012] (III) Beneficial Effects

[0013] This utility model provides a high-power DC charging gun with an anti-drop structure. It has the following features:

[0014] Beneficial effects:

[0015] (I) This high-power DC charging gun with an anti-detachment structure forms a multi-layered anti-detachment protection through a dual protection logic of first fixing the anti-detachment component, then locking the component, and finally reinforcing it. The rotational cooperation between the arc plate and the slot in the anti-detachment component, and the pushing force of the second reset spring, can quickly form the first layer of fixation when the plug and connector are initially engaged, limiting the relative displacement between the two. The engagement between the pin and the positioning hole of the arc plate in the subsequent locking component, combined with the continuous force of the pushing spring, forms the second layer of reinforcement, making the dual protection tightly connected. Even if the charging process encounters external forces such as accidental contact or pulling, the two protective structures can jointly resist the impact of external forces, reducing the risk of loosening or detachment. Compared with a single protective structure, it is more suitable for the connection stability requirements in complex usage scenarios.

[0016] (II) This high-power DC charging gun with an anti-detachment structure can trigger dual protection by simply pushing the plug to complete the snap-fit. When disconnected, the fixation can be released by simply pulling the pin and rotating the arc plate in the opposite direction. The handle further improves the ease of operation of the pin and reduces the difficulty of operation for operators. The first reset spring can push the conductive sheet to reset in time after being squeezed by external force, always keeping the conductive sheet in close contact, reducing contact loss during power transmission, and providing a stable conductive path for DC power transmission. Attached Figure Description

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

[0018] Figure 2 This is a partial structural diagram of the side of this utility model;

[0019] Figure 3 This is a structural schematic diagram of the cross-section of the locking component of this utility model;

[0020] Figure 4 This utility model Figure 3 Schematic diagram of the structure at point A;

[0021] Figure 5 This utility model Figure 3 Schematic diagram of the structure at point B;

[0022] Figure 6 This is a schematic diagram of the cross-section of the conductor of this utility model;

[0023] Figure 7 This is a structural schematic diagram of the electrical connection principle of this utility model;

[0024] Figure 8 This is a schematic diagram of the external connection device of this utility model.

[0025] In the diagram: 1. Dust cover; 2. Charging gun; 22. Gun head; 3. Locking assembly; 31. Plug; 32. Wire; 33. Conductive sheet; 35. Connector; 36. Slot; 37. First guide rod; 38. First return spring; 39. Pin; 310. Thrust spring; 311. Sleeve; 4. Anti-detachment assembly; 41. Arc plate; 42. Positioning hole; 43. Second return spring; 44. Second guide rod. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-8 This utility model provides a high-power DC charging gun with an anti-detachment structure, including a charging gun 2, a dust cover 1 sleeved on the outlet end of the charging gun 2, a gun head 22 located inside the dust cover 1, and a locking component 3. The locking component 3 is fixedly connected to the outer wall of the locking component 3 away from the dust cover 1. The locking component 3 includes a plug 31, a connector 35 snapped into the outer wall below the plug 31, a sleeve 311 fixedly connected to the outer wall of the connector 35, a thrust spring 310 fixedly connected to the inner wall of the sleeve 311, a pin 39 slidably connected to the end of the thrust spring 310 away from the inner wall of the sleeve 311, the outer wall of the pin 39 slidably connected to the inner wall of the sleeve 311, and a handle extending out of the inner wall of the sleeve 311 fixedly connected to the pin 39 inside the sleeve 311.

[0028] A wire 32 is fixedly connected to the inner wall of the plug 31. A conductive piece 33 is fixedly connected to one end of the wire 32 located on the inner wall of the plug 31. A conductive piece 33 is also fixedly connected to the inner wall of the connector 35. A slot 36 is provided on the inner wall above the connector 35. A first guide rod 37 is fixedly connected to the inner wall of the connector 35. A first reset spring 38 is sleeved on the outside of the first guide rod 37. The inner wall of the connector 35 is slidably connected to the outer wall of the conductive piece 33. The first guide rod 37 passes through the conductive piece 33 inside the connector 35. An anti-disconnection component 4 is slidably connected to the inner wall of the plug 31. The part of the slot 36 located at the pin 39 is flush with the outer wall above the connector 35.

[0029] The anti-detachment component 4 includes an arc-shaped plate 41. The outer wall of the arc-shaped plate 41 extends to the inner wall below the plug 31. A positioning hole 42 is provided through the inner wall of the arc-shaped plate 41. A second guide rod 44 is connected through the inner wall above the arc-shaped plate 41. A second reset spring 43 is sleeved on the outside of the second guide rod 44.

[0030] The outer walls of both ends of the second guide rod 44 are fixedly connected to the inner wall of the plug 31. The inner wall of the arc plate 41 is slidably connected to the outer wall of the second guide rod 44. One end of the second return spring 43 is fixedly connected to the outer wall above the arc plate 41. The other end of the second return spring 43 is fixedly connected to the inner wall of the plug 31. The outer wall of the arc plate 41 corresponds to the inner wall of the slot 36.

[0031] When in use, when not charging, the dust cover 1 is placed on the outlet end of the charging gun 2 to protect the gun head 22 inside the dust cover 1, reducing the corrosion of the gun head 22 and subsequent connecting parts by dust and impurities, and maintaining the cleanliness of the parts. At this time, the locking component 3 and the anti-detachment component 4 are both in standby mode, ready for subsequent connection with external power supply equipment.

[0032] When charging connection is required, first remove the dust cover 1, align the plug 31 in the locking assembly 3 with the corresponding interface of the external device, and push the plug 31 and connector 35 to complete the snap-fit ​​engagement, realizing the initial docking of the charging gun 2 with the external device. During this process, the anti-disconnection assembly 4 will form the first layer of anti-disconnection protection. Since the outer wall of the arc plate 41 in the anti-disconnection assembly 4 corresponds to the inner wall of the slot 36 opened on the upper inner wall of the connector 35, and the arc plate 41 is slidably connected to the inner wall of the plug 31 through the second guide rod 44, and the second reset sleeve on the outside of the second guide rod 44... One end of the spring 43 is connected to the arc plate 41, and the other end is fixed to the inner wall of the plug 31. When the plug 31 and the connector 35 are engaged, the second return spring 43 will be in a naturally extended state, pushing the arc plate 41 to move towards the connector 35 until the arc plate 41 is engaged in the slot 36 of the connector 35. By rotating the arc plate 41 to cooperate with the slot 36, the relative displacement between the plug 31 and the connector 35 is restricted. Even if the charging gun 2 is subjected to external forces such as accidental contact or pulling during the charging process, it can effectively resist external interference and prevent the plug 31 and the connector 35 from separating.

[0033] After the locking assembly 3 is initially fixed, the thrust spring 310 is in a naturally extended state inside the sleeve 311 fixed to the outer wall of the connector 35. Under the force of the thrust spring 310, the pin 39 connected to one end will move towards the corresponding arc plate 41 of the external device interface until the pin 39 engages with the positioning hole 42 opened inside the arc plate 41, further reinforcing the connection between the plug 31 and the connector 35, forming a second layer of anti-dislodgement protection, and avoiding loosening of the connection due to slight external force after the initial docking.

[0034] If disconnection is required later, the operator can pull the handle extending from the inner wall of the sleeve 311 on the pin 39 to drive the pin 39 to slide into the sleeve 311 against the elastic force of the thrust spring 310, so that the pin 39 is separated from the limiting structure of the arc plate 41. Then, the arc plate 41 is rotated in the opposite direction to separate it from the slot 36, thereby releasing the locking component 3 and conveniently completing the separation of the plug 31 and the connector 35.

[0035] While the plug 31 and connector 35 are snapped together, the wire 32 fixed to the inner wall of the plug 31 and the conductive piece 33 fixed to the inner wall of the connector 35 make contact. Specifically, the conductive piece 33 connected to one end of the wire 32 in the plug 31 will fit tightly with the conductive piece 33 in the connector 35, forming a complete power transmission path. At this time, the first guide rod 37 fixed to the inner wall of the connector 35 can guide the contact process of the conductive piece 33, ensuring that the two conductive pieces 33 are aligned and avoiding the impact of current transmission due to contact misalignment. The first return spring 38 sleeved outside the first guide rod 37 can deform when the conductive piece 33 is subjected to slight external force. After the external force disappears, it pushes the conductive piece 33 back to its original position, always maintaining stable contact between the two conductive pieces 33, providing a reliable foundation for the transmission of high-power DC current, reducing power loss during power transmission, and ensuring charging efficiency.

[0036] If the anti-detachment fixation needs to be released, as the plug 31 and connector 35 are separated, the arc plate 41 will be subjected to the reverse force of connector 35, overcome the elastic force of the second reset spring 43, slide along the second guide rod 44 into the plug 31, and exit from the slot 36, thus smoothly completing the disconnection of the overall connection.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-power DC charging gun with an anti-detachment structure, comprising a charging gun (2), wherein a dust cover (1) is fitted over the outlet end of the charging gun (2), and a gun head (22) is disposed inside the dust cover (1), characterized in that, Also includes: Locking assembly (3), the locking assembly (3) is fixedly connected to the outer wall away from the dust cover (1); The locking assembly (3) includes a plug (31), a connector (35) is snapped onto the outer wall below the plug (31), a sleeve (311) is fixedly connected to the outer wall of the connector (35), a thrust spring (310) is fixedly connected to the inner wall of the sleeve (311), and a pin (39) is slidably connected to one end of the thrust spring (310) away from the inner wall of the sleeve (311).

2. A high-power DC charging gun with an anti-detachment structure according to claim 1, characterized in that: The outer wall of the pin (39) is slidably connected to the inner wall of the sleeve (311), and the pin (39) is fixedly connected inside the sleeve (311) with a handle extending out of the inner wall of the sleeve (311).

3. A high-power DC charging gun with an anti-detachment structure according to claim 1, characterized in that: The inner wall of the plug (31) is fixedly connected with a wire (32), and one end of the wire (32) located on the inner wall of the plug (31) is fixedly connected with a conductive piece (33). The inner wall of the connector (35) is also fixedly connected with a conductive piece (33).

4. A high-power DC charging gun with an anti-detachment structure according to claim 3, characterized in that: The inner wall above the connector (35) is provided with a slot (36), the inner wall of the connector (35) is fixedly connected with a first guide rod (37), the outer side of the first guide rod (37) is sleeved with a first reset spring (38), the inner wall of the connector (35) is slidably connected with the outer wall of the conductive sheet (33), the first guide rod (37) passes through the conductive sheet (33) inside the connector (35), the inner wall of the plug (31) is slidably connected with an anti-disengagement component (4), and the part of the slot (36) located at the pin (39) is flush with the outer wall above the connector (35).

5. A high-power DC charging gun with an anti-detachment structure according to claim 4, characterized in that: The anti-detachment component (4) includes an arc-shaped plate (41), the outer wall of the arc-shaped plate (41) extends to the inner wall below the plug (31), the inner wall of the arc-shaped plate (41) is provided with a positioning hole (42), the inner wall of the arc-shaped plate (41) is connected to a second guide rod (44), and a second reset spring (43) is sleeved on the outside of the second guide rod (44).

6. A high-power DC charging gun with an anti-detachment structure according to claim 5, characterized in that: The outer walls of both ends of the second guide rod (44) are fixedly connected to the inner wall of the plug (31), the inner wall of the arc plate (41) is slidably connected to the outer wall of the second guide rod (44), one end of the second return spring (43) is fixedly connected to the outer wall above the arc plate (41), the other end of the second return spring (43) is fixedly connected to the inner wall of the plug (31), and the outer wall of the arc plate (41) corresponds to the inner wall of the slot (36).

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