Charging gun empty seat and charging pile

Abstract

This utility model discloses a charging gun holder and a charging pile, relating to the field of charging gun technology. It is used for cleaning the pin terminals of a charging gun. The charging gun has a slot, and the pin terminals are disposed within the slot. The charging gun holder includes a base body and a positioning post. The base body has a cavity for inserting the charging gun; the positioning post has a cleaning cavity for the pin terminals to extend into. The side wall of the positioning post also has a slot communicating with the cleaning cavity to allow the cleaning cavity to expand. The positioning post is inserted into the slot, causing the pin terminals to be inserted into the cleaning cavity for cleaning. The technical solution provided by this utility model aims to enable the charging gun holder to clean the charging gun pin terminals.

Description

Technical Field

[0001] This utility model relates to the field of charging gun technology, and in particular to a charging gun socket and a charging pile. Background Technology

[0002] With the rapid popularization of electric vehicles (EVs), the long-term reliability and operational efficiency of charging equipment have become core challenges for the industry. Traditional charging guns exhibit the following key problems in practical applications: **Contaminant Accumulation:** Dust, metal oxides, salt spray, and other impurities deposit on the surface of the charging gun terminals, leading to a significant increase in contact resistance (measured to be up to 200%), which in turn causes overheating during charging and even equipment failure (accounting for 17% of the total charging pile failure rate). **Accelerated Environmental Corrosion:** In humid or high-salt-spray environments (such as coastal areas), electrolytic corrosion shortens the lifespan of the charging gun terminals by more than 40%. Therefore, regular cleaning and maintenance of the charging gun terminals are necessary.

[0003] However, current technologies typically involve manual cleaning and maintenance of the charging gun's pin terminals. In scenarios with high cleaning frequency, such as highway service areas, manual cleaning is required every two weeks, resulting in high cleaning and maintenance costs. Furthermore, remote areas often face a lack of maintenance. Utility Model Content

[0004] The main purpose of this utility model is to propose a charging gun socket and a charging pile, which aims to enable the charging gun socket to clean the charging gun pin terminals.

[0005] To achieve the above objectives, this utility model proposes a charging gun holder for cleaning the pin terminals of a charging gun. The charging gun has a slot, and the pin terminals are disposed within the slot. The charging gun holder includes a base and a positioning post. The base has a cavity for inserting the charging gun. The positioning post has a cleaning cavity for inserting the pin terminals. The side wall of the positioning post also has a slot communicating with the cleaning cavity to allow the cleaning cavity to expand. The positioning post is inserted into the slot, causing the pin terminals to be inserted into the cleaning cavity for cleaning.

[0006] In one embodiment, the slot extends along the extension direction of the positioning post;

[0007] And / or, the slots include multiple slots, which are evenly spaced along the circumference of the positioning post, and an abutment portion is formed between two adjacent slots.

[0008] In one embodiment, the charging gun socket further includes an elastic abutment ring disposed within the cleaning cavity and located at the end of the cleaning cavity away from the base body. The elastic abutment ring has a through hole communicating with the cleaning cavity, and the through hole is used for the insertion pin terminal to pass through.

[0009] In one embodiment, the wall of the cleaning chamber is provided with a first fixing groove, and at least a portion of the elastic abutment ring is located in the first fixing groove.

[0010] In one embodiment, the wall of the through hole is provided with raised stripes, which are used to abut against the friction pin terminal.

[0011] In one embodiment, the charging gun holder further includes a retaining ring, which is fitted onto the outer wall of the positioning post.

[0012] In one embodiment, the retaining ring is located on the side of the elastic abutment ring near the seat and is disposed adjacent to the elastic abutment ring.

[0013] In one embodiment, the outer wall of the positioning post is provided with a second fixing groove, and at least a portion of the fixing ring is located in the second fixing groove.

[0014] In one embodiment, the elastic abutment ring is made of rubber;

[0015] And / or, the retaining ring is made of stainless steel;

[0016] And / or, the positioning posts include a plurality of them, and the plurality of positioning posts are disposed at intervals in the cavity.

[0017] This utility model also proposes a charging pile, which includes the empty charging gun seat as described above.

[0018] In this invention, a charging gun is placed in a base, which has a cavity for inserting the charging gun. A positioning post within the cavity has a cleaning chamber for inserting the pin terminal. The side wall of the positioning post has a groove communicating with the cleaning chamber. This groove allows the cleaning chamber to expand when the pin terminal is inserted, resulting in an interference fit between the pin terminal and the cleaning chamber, and the wall of the cleaning chamber tightly abuts against the pin terminal. When the charging gun is inserted into the cavity of the charging gun holder, the positioning post is aligned with and inserted into the slot of the charging gun. At this time, the pin terminal of the charging gun is inserted into the cleaning chamber of the positioning post. As the pin terminal is inserted, the cleaning chamber expands elastically under the action of the groove. The wall of the cleaning chamber tightly abuts against the surface of the pin terminal. The friction between the edge of the cleaning chamber opening and the pin terminal scrapes away oxides, dust, oil, and other impurities adhering to the surface of the pin terminal, completing the cleaning process. By using the empty charging gun holder in this application to place the charging gun, the charging gun pin terminals can be automatically cleaned during the continuous removal and placement of the charging gun. In this way, the empty charging gun holder has the function of automatically cleaning the charging gun pin terminals, eliminating the need for manual cleaning of the charging gun pin terminals and greatly reducing the cleaning and maintenance costs of the charging gun. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of the empty charging gun socket in one embodiment of this utility model;

[0021] Figure 2 An exploded view of the empty charging gun socket in one embodiment of this utility model.

[0022] Explanation of icon numbers:

[0023] 100. Charging gun empty seat; 1. Seat body; 11. Cavity; 2. Positioning post; 21. Cleaning chamber; 22. Groove; 23. First fixing groove; 24. Second fixing groove; 3. Elastic abutment ring; 31. Through hole; 4. Fixing ring.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. 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. 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 scope of protection of the present utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] In related technologies, the pin terminals of charging guns often become oxidized, dusty, or contaminated with oil due to prolonged insertion and removal and environmental exposure, increasing contact resistance and posing safety hazards such as overheating and arcing during electrical transmission. Traditional solutions rely on regular manual cleaning or expensive plating materials, resulting in low maintenance efficiency, difficulty in maintaining durability, and high costs.

[0029] Based on the above issues, such as Figure 1 and Figure 2 As shown, this utility model proposes a charging gun holder 100 for cleaning the pin terminals of the charging gun. The charging gun has a slot, and the pin terminals are disposed in the slot. The charging gun holder 100 includes a base body 1 and a positioning post 2. The base body 1 has a cavity 11 for inserting the charging gun. The positioning post 2 has a cleaning cavity 21 for inserting the pin terminals. The side wall of the positioning post 2 also has a slot 22 communicating with the cleaning cavity 21 to allow the cleaning cavity 21 to expand. The positioning post 2 is inserted into the slot, so that the pin terminals are inserted into the cleaning cavity 21 to clean the pin terminals.

[0030] In this embodiment, the base 1 is provided with a cavity 11 for inserting the charging gun. The shape and size of the cavity 11 are adapted to the shape of the charging gun to facilitate insertion. The positioning post 2 located in the cavity 11 is provided with a cleaning cavity 21. The size of the cleaning cavity 21 matches the size of the pin terminal of the charging gun, allowing the pin terminal to extend into it. The side wall of the positioning post 2 is provided with a slot 22 communicating with the cleaning cavity 21. The slot 22 allows the cleaning cavity 21 to expand when the pin terminal is inserted, so that the pin terminal and the cleaning cavity 21 are in an interference fit, and the cavity wall of the cleaning cavity 21 can tightly abut the pin terminal. When the charging gun is inserted into the cavity 11 of the charging gun base 100, the positioning post 2 is also aligned with the slot of the charging gun and inserted therein. At this time, the pin terminal of the charging gun is inserted into the cleaning cavity 21 of the positioning post 2. As the pin terminals are inserted, the cleaning chamber 21 elastically expands under the action of the slot 22. The wall of the cleaning chamber 21 tightly abuts against the surface of the pin terminals. The friction between the edge of the cleaning chamber 21 and the pin terminals scrapes away oxides, dust, oil, and other impurities adhering to the surface of the pin terminals, completing the cleaning process and ensuring the cleanliness of the charging gun pin terminals. This reduces contact resistance, minimizes the risk of overheating, improves charging safety and efficiency, and significantly enhances the performance and lifespan of the charging gun. By using the charging gun holder 100 in this application to place the charging gun, the charging gun pin terminals can be automatically cleaned during the continuous removal and placement of the charging gun. Thus, the charging gun holder 100 has an automatic cleaning function for the charging gun pin terminals, eliminating the need for manual cleaning and greatly reducing the cleaning and maintenance costs of the charging gun.

[0031] Understandably, the cavity 11 is a slot-shaped structure with one open side. The charging gun is inserted into the slot, i.e., the opening of the cavity 11. The peripheral wall of the charging gun is abutted and limited by the cavity wall of the cavity 11. The positioning post 2 is located at the bottom of the slot. Similarly, the cleaning cavity 21 is also a slot-shaped structure with one open side. The pin terminal of the charging gun is inserted into the slot, i.e., the opening of the cleaning cavity 21. The peripheral wall of the pin terminal is abutted and limited by the cavity wall of the cleaning cavity 21. Understandably, in addition to cleaning the pin terminal, the cleaning cavity 21 also has the function of positioning and limiting the pin terminal, improving the stability of the charging gun placed in the charging gun holder 100. Optionally, the base 1 has pre-drilled mounting holes and mounting protrusions for installation, so that the user can install the charging gun holder 100.

[0032] Optionally, the edge of the cleaning chamber 21 has an annular protrusion facing the inside of the cleaning chamber 21. During the process of inserting the pin terminal into the cleaning chamber 21, the annular protrusion always abuts against the periphery of the pin terminal and scrapes off impurities such as oxides, dust and oil on the surface of the pin terminal during the insertion and removal process, so as to avoid affecting the electrical transmission of the charging gun pin terminal.

[0033] Optionally, the positioning post 2 is made of an engineering plastic with a certain degree of elasticity to ensure that the positioning post 2 has appropriate elastic deformation capability when the pin terminal is inserted, while also possessing good durability and chemical stability, and is not prone to aging or deformation due to long-term use, which would affect the cleaning effect. The positioning post 2 and the base 1 can be integrally molded, or they can be detachably connected by bolts or clips.

[0034] Optionally, the edges of the cavity opening of the cavity 11 and the cavity opening of the cleaning cavity 21 are chamfered to facilitate the insertion of the charging gun into the cavity 11 and the insertion of the pin terminal into the cleaning cavity 21.

[0035] In actual implementation, the dimensions of the cleaning chamber 21 are matched with the national standard dimensions of the pin terminals.

[0036] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the slot 22 extends along the extension direction of the positioning post 2.

[0037] In actual implementation, the extension direction of the positioning post 2 is consistent with the direction in which the charging gun is inserted into the housing. The length direction of the slot 22 is the same as the extension direction of the positioning post 2, so that the cleaning cavity 21 can expand more evenly along the radial direction of the positioning post 2 when the pin terminal is inserted, thereby ensuring that the positioning post 2 cleans the peripheral side of the pin terminal more evenly, avoiding uneven force on the pin terminal, resulting in incomplete cleaning or damage to the pin terminal.

[0038] Understandably, the positioning post 2 is cylindrical in shape, and the length of the slot 22 is selected according to the deformation capability of the positioning post 2. The stronger the deformation capability of the positioning post 2, the shorter the length of the slot 22; the weaker the deformation capability of the positioning post 2, the longer the length of the slot 22. This ensures that the positioning post 2 has sufficient elasticity while preventing damage to the positioning post 2 due to excessive expansion caused by the insertion of the pin terminal.

[0039] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the slots 22 include multiple slots, which are evenly spaced along the circumferential direction of the positioning post 2, and an abutment portion is formed between two adjacent slots 22.

[0040] In this embodiment, multiple slots 22 are evenly spaced along the circumference of the positioning post 2 to divide the positioning post 2 into multiple abutment portions with equal arc lengths. This ensures that the charging gun pin terminals are subjected to uniform force during insertion into the cleaning chamber 21, preventing excessive or insufficient friction on certain parts of the pin terminals, which could lead to damage or incomplete cleaning. Furthermore, the evenly distributed slots 22 and elastic abutment portions are structurally more symmetrical, which helps improve the overall stability and durability of the positioning post 2. It is less prone to deformation or skewing during long-term use, ensuring the lasting effectiveness of the cleaning function.

[0041] Optionally, the number of slots 22 can be 4, 6, 8, etc., and no specific limitation is made here.

[0042] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the charging gun empty seat 100 also includes an elastic abutment ring 3. The elastic abutment ring 3 is disposed in the cleaning cavity 21 and located at the end of the cleaning cavity 21 away from the seat body 1. The elastic abutment ring 3 is provided with a through hole 31 communicating with the cleaning cavity 21. The through hole 31 is used for the insertion of the pin terminal.

[0043] In this embodiment, when the pin terminal is inserted into the cleaning cavity 21, the pin terminal also passes through the through hole 31 of the elastic abutment ring 3. The elastic abutment ring 3 is in close contact with the pin terminal, using friction to scrape away contaminants such as oxides, dust, and oil from the surface of the pin terminal. It can be understood that in this embodiment, the elastic abutment ring 3 replaces the edge of the cavity opening of the cleaning cavity 21 to scrape the pin terminal. The elastic abutment ring 3 is located at the end of the cleaning cavity 21 away from the seat 1, that is, the elastic abutment ring is located at the end of the cleaning cavity 21 near the cavity opening, so that when the pin terminal is inserted, it passes through as much of the pin terminal's circumferential surface as possible, increasing the cleaning range of the pin terminal. When the pin terminal is inserted into the through hole 31 of the elastic abutment ring 3, the cleaning cavity 21 also expands with the deformation of the elastic abutment ring 3 to adapt to the deformation of the elastic abutment ring 3, ensuring the smoothness of pin terminal insertion and removal to a certain extent.

[0044] It is understandable that the elastic abutment ring 3 in this embodiment has a certain degree of elasticity, which can adapt to the pin terminals with different degrees of wear and achieve long-term cleaning of the pin terminals.

[0045] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the cavity wall of the cleaning chamber 21 is provided with a first fixing groove 23, and at least part of the elastic abutment ring 3 is limited to the first fixing groove 23.

[0046] In this embodiment, the elastic abutment ring 3 is confined within the first fixing groove 23 by a snap-fit ​​engagement, thereby ensuring the installation stability of the elastic abutment ring 3 within the cleaning cavity 21. This prevents displacement or detachment due to vibration or friction of the pins during insertion and removal, thus avoiding any impact on or loss of cleaning effectiveness. Furthermore, the confined position of the elastic abutment ring 3 within the first fixing groove 23 also allows for its detachable placement within the cleaning cavity 21. This facilitates replacement of the elastic abutment ring 3 when it ages, extending the service life of the charging gun socket 100 and reducing its maintenance costs.

[0047] In actual implementation, part of the elastic abutment ring 3 extends into the first fixing groove 23 so as to abut against the pin terminal inserted into the cleaning cavity 21 and scrape and clean it.

[0048] Optionally, the first fixing groove 23 is arranged in a ring shape to accommodate the shape of the elastic abutment ring 3.

[0049] Optionally, the wall of the through hole 31 is provided with raised stripes, which are used to abut against the friction pin terminal. In this embodiment, when the pin passes through the through hole 31, the raised stripes can increase the friction between the elastic abutment ring 3 and the pin, more effectively scraping away impurities on the pin surface and improving the cleaning effect. Optionally, the raised stripes are arranged in a ring.

[0050] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the charging gun empty seat 100 also includes a fixing ring 4, which is sleeved on the outer wall of the positioning post 2.

[0051] In this embodiment, the retaining ring 4 is sleeved on the outer wall of the positioning post 2, providing support and restraint for the elastic abutment ring 3. This prevents the elastic abutment ring 3 and the positioning post 2 from excessively deforming during the insertion and removal of the pin terminal, which could cause the elastic abutment ring 3 to disengage from its original position and affect the cleaning effect. The retaining ring 4 ensures that the elastic abutment ring 3 maintains good elasticity and cleaning effect throughout the insertion and removal of the pin.

[0052] In actual implementation, after the elastic abutment ring 3 is installed in the cleaning cavity 21, the fixing ring 4 is sleeved on the outer wall of the positioning post 2 to ensure the installation stability of the elastic abutment ring 3.

[0053] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the fixing ring 4 is located on the side of the elastic abutment ring 3 near the seat 1 and is disposed adjacent to the elastic abutment ring 3.

[0054] In this embodiment, the fixing ring 4 is located on the side of the elastic abutment ring 3 near the base 1. This allows the elastic abutment ring 3 and its corresponding positioning post 2 to adapt to changes in shape during the insertion and removal of the pin, ensuring the scraping effect of the elastic abutment ring 3 on the pin terminal. Simultaneously, the fixing ring 4 is positioned adjacent to the elastic abutment ring 3 to limit the deformation of the elastic abutment ring 3 and the positioning post 2, ensuring a tight contact between the elastic abutment ring 3 and the pin terminal, and guaranteeing a cleaning effect on the pin terminal.

[0055] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the outer wall of the positioning post 2 is provided with a second fixing groove 24, and the fixing ring 4 is limited to the second fixing groove 24.

[0056] In this embodiment, after the elastic abutment ring 3 is installed in the cleaning cavity 21 and confined within the first fixing groove 23, the fixing ring 4 is sleeved within the second fixing groove 24 on the outer wall of the positioning post 2. The fixing ring 4 is confined within the second fixing groove 24 by a snap-fit ​​engagement to ensure the stability of the fixing ring 4 installation. Simultaneously, the fixing ring 4 is confined within the second fixing groove 24, allowing it to be detachably mounted on the positioning post 2, facilitating user installation and removal of the fixing ring 4.

[0057] Optionally, the second fixing groove 24 is arranged in a ring shape to fit the shape of the fixing ring 4.

[0058] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the elastic contact ring 3 is made of rubber. Rubber has excellent elasticity, wear resistance, and corrosion resistance, which allows the elastic contact ring 3 to adapt to repeated friction from pin terminals of different materials and maintain good elasticity over a long period of time, ensuring a stable and reliable cleaning effect on the pin terminals.

[0059] Optionally, the retaining ring 4 is made of stainless steel. Stainless steel possesses extremely high strength and hardness, providing a stable limiting effect for the positioning post 2 and the elastic abutment ring 3. During the insertion and removal of the charging gun, the retaining ring 4 needs to withstand certain radial and axial forces. The stainless steel material effectively resists the impact of these forces, ensuring the stability and integrity of its structure, thus enabling it to stably limit the elastic abutment ring 3 over a long period. Stainless steel also has excellent corrosion resistance, resisting various corrosive factors in the external environment, extending the service life of the charging gun socket 100, reducing maintenance and replacement costs, and ensuring effective cleaning of the pin terminals.

[0060] Optionally, the positioning posts 2 include multiple posts, which are spaced apart in the cavity 11. In this embodiment, the number of positioning posts 2 and their arrangement in the cavity 11 can be set according to the number and arrangement of the pin terminals on the charging gun.

[0061] This utility model also proposes a charging pile, which includes a charging gun holder 100. The specific structure of the charging gun holder 100 is as described in the above embodiments. Since this charging pile adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. In this embodiment, the charging gun holder 100 is used for inserting the charging gun on the charging pile when it is idle. The charging gun holder 100 not only has the function of placing the charging gun, but also has a cleaning effect on the charging gun pin terminals.

[0062] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A charging gun empty seat for cleaning a pin terminal of a charging gun, the charging gun being provided with a socket, the pin terminal being provided in the socket, characterized in that, The empty charging gun socket includes: A base, the base having a cavity for inserting a charging gun; and The positioning post has a cleaning cavity for the insertion of the pin terminal, and the side wall of the positioning post also has a slot communicating with the cleaning cavity to allow the cleaning cavity to expand. The positioning post is inserted into the slot, so that the pin terminal is inserted into the cleaning cavity to clean the pin terminal.

2. The charging gun empty seat of claim 1, wherein, The slot extends along the extension direction of the positioning post; And / or, the slots include multiple slots, which are evenly spaced along the circumference of the positioning post, and an abutment portion is formed between two adjacent slots.

3. The charging gun empty seat of claim 1, wherein, The charging gun socket also includes an elastic abutment ring, which is disposed in the cleaning cavity and located at the end of the cleaning cavity away from the base body. The elastic abutment ring has a through hole communicating with the cleaning cavity, and the through hole is used for the pin terminal to pass through.

4. The charging gun empty seat of claim 3, wherein, The wall of the cleaning chamber is provided with a first fixing groove, and at least part of the elastic abutment ring is located in the first fixing groove.

5. The charging gun empty seat of claim 3, wherein, The wall of the through hole is provided with raised stripes, which are used to abut against the friction pin terminal.

6. The charging gun empty seat of claim 3, wherein, The charging gun holder also includes a retaining ring, which is fitted onto the outer wall of the positioning post.

7. The charging gun empty seat of claim 6, wherein, The retaining ring is located on the side of the elastic abutment ring near the seat body and is disposed adjacent to the elastic abutment ring.

8. The charging gun empty seat of claim 6, wherein, The outer wall of the positioning post is provided with a second fixing groove, and at least part of the fixing ring is located in the second fixing groove.

9. The charging gun empty seat of claim 6, wherein, The elastic abutment ring is made of rubber. And / or, the retaining ring is made of stainless steel; And / or, the positioning posts include a plurality of them, and the plurality of positioning posts are disposed at intervals in the cavity.

10. A charging post, characterized in that, The charging station includes an empty charging gun socket as described in any one of claims 1 to 9.

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