Direct current charging pile with noise reduction structure
By installing sound insulation cotton and storage components between the inner and outer shells of the charging pile, the problems of charging pile noise and charging cable wear are solved, achieving the effects of noise reduction and protection of the charging cable.
Patent Information
- Application Number
- CN202520384732.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-06
AI Technical Summary
The noise from the charging station's fan affects people in the vicinity, and the problems of wear and tear and crushing damage to the charging cables have not been effectively resolved.
It adopts an inner and outer shell structure. The inner shell is lined with sound insulation cotton, and the outer shell contains storage components, including a reversing wheel and an elastic rope. The power cord is distributed in a folding pattern through the reversing wheel and automatically stored. Combined with a foam cover and channel design, it prevents wear and noise transmission.
It effectively reduces noise transmission, protects the charging cable, extends its lifespan, avoids wear and tear, and improves the user experience.
Smart Images

Figure CN223764254U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile charging pile technology, and in particular to a DC charging pile with a noise reduction structure. Background Technology
[0002] A car charging station is a charging device that provides energy replenishment for electric vehicles. Its function is similar to a gas pump at a gas station. It can charge various models of electric vehicles according to different voltage levels. The input end of the charging station is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging electric vehicles. Charging stations generally provide two charging methods: regular charging and fast charging. People can use a specific charging card to swipe on the human-machine interface provided by the charging station to perform corresponding charging operations and print out the corresponding fee data. The charging station display screen can display data such as charging amount, cost, and charging time.
[0003] When a charging station is charging, the internal electrical components carry a large current, and the charging station gets very hot. Therefore, a fan is needed for air cooling, which generates noise when the fan is running.
[0004] Car charging piles are typically constructed from a single layer of stamped, bent, and welded aluminum sheet, resulting in poor sound insulation. Consequently, noise is transmitted outwards during use. Furthermore, the charging cable between the charging gun and the charging pile is of considerable length. When a person holds the charging gun to charge a vehicle, the cable slides along the ground, causing wear and tear on the cable, eventually leading to breakage and unusability. Additionally, when manually returning the charging gun to its original position, part of the charging cable may remain in front of the charging pile. If this is not corrected, subsequent vehicles reversing towards the charging pile to charge may run over the cable, causing damage. Therefore, a DC charging pile with a noise reduction structure is proposed. Utility Model Content
[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a DC charging pile with a noise reduction structure, which can reduce the noise generated inside the charging pile to avoid affecting surrounding personnel, and protect the charging cable, thereby extending the service life of the charging pile.
[0006] This utility model also proposes a DC charging pile with a noise reduction structure, including: a charging cabinet, the charging cabinet including an outer shell located on the outside, an inner shell provided on the inner side of the outer shell, a cavity formed between the outer shell and the inner shell, and sound insulation cotton installed in the cavity, charging guns are installed on both sides of the charging cabinet, and the bottom of the charging gun is provided with a wire connected to the charging cabinet circuit, and storage components for storing the wires are fixed on both outer walls of the charging cabinet;
[0007] The storage component includes a frame fixed to the side wall of the charging cabinet. Multiple sets of reversing wheels are rotatably arranged near the upper and lower inner walls of the frame. The three sets of reversing wheels located at the bottom are slidably arranged in the frame. Connecting strips are rotatably connected to the front ends of the three sets of reversing wheels located at the bottom. Two sets of elastic ropes are fixed to the inner wall of the frame at the bottom of the connecting strips. The wires are located in the frame and are distributed in a zigzag pattern around the multiple sets of reversing wheels.
[0008] According to some embodiments of this utility model, gun holders for plugging in charging guns are fixed on both sides of the charging cabinet, and the internal dimensions of the gun holders match the charging guns.
[0009] According to some embodiments of the present invention, the front surface of the charging cabinet is provided with a movable door, and the front surface of the movable door is provided with a control panel.
[0010] According to some embodiments of the present invention, the outer wall of the frame is provided with a movable plate, and the movable plate is detachably connected to the frame by bolts.
[0011] According to some embodiments of the present invention, the upper and lower ends of the frame are provided with channels for the sliding of the power supply line, and the bottom of the frame is covered with a sponge sleeve outside the wire, and the sponge sleeve is fixed to the bottom of the frame.
[0012] According to some embodiments of the present invention, the inner wall of the frame is provided with three sets of travel grooves, and the end faces of the three sets of reversing wheels located below are rotatably connected to a base plate extending into the travel groove.
[0013] According to some embodiments of the present invention, a constraint ring is fixed on the outer wall of the base plate, and a constraint groove is provided on the inner wall of the travel groove for the constraint ring to slide.
[0014] The embodiments of this utility model have at least the following beneficial effects:
[0015] This utility model's DC charging pile with a noise reduction structure constrains the protruding wires through a storage component, preventing them from sliding on the ground and causing wear. When the charging gun is manually returned to its original position, the wires can be automatically stored inside the cabinet, preventing them from being run over by other vehicles if the user forgets to tidy them up. This improves the lifespan of the wires. At the same time, the sound insulation cotton between the inner and outer compartments absorbs the noise generated by heat dissipation inside the charging cabinet, thereby reducing noise. Attached Figure Description
[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0017] Figure 1This is a first-view structural diagram of the charging cabinet of this utility model;
[0018] Figure 2 This is a first-view sectional structural diagram of the charging cabinet of this utility model.
[0019] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0020] Figure 4 This is a schematic diagram of the internal structure of the frame of this utility model;
[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the base plate of this utility model.
[0022] 100. Charging cabinet; 101. Outer shell; 102. Inner shell; 103. Sound insulation cotton; 110. Wire; 120. Charging gun; 130. Ventilation window; 140. Storage component; 141. Movable board; 142. Frame; 143. Sponge cover; 144. Reversing wheel; 145. Base plate; 1451. Constraint ring; 146. Stroke groove; 1461. Constraint groove; 147. Connecting strip; 148. Elastic rope; 149. Channel. Detailed Implementation
[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0027] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments:
[0028] like Figures 1 to 5 The DC charging pile with noise reduction structure shown includes: a charging cabinet 100, the charging cabinet 100 including an outer shell 101 located on the outside, an inner shell 102 provided on the inner side of the outer shell 101, a cavity formed between the outer shell 101 and the inner shell 102, and sound insulation cotton 103 installed in the cavity; charging guns 120 are installed on both sides of the charging cabinet 100; the bottom of the charging gun 120 is provided with a wire 110 connected to the charging cabinet 100; and storage components 140 for storing the wires 110 are provided on both outer walls of the charging cabinet 100.
[0029] The storage component 140 includes a frame 142 fixed to the side wall of the charging cabinet 100. Multiple sets of reversing wheels 144 are rotatably arranged inside the frame 142 near the upper and lower inner walls. The three sets of reversing wheels 144 located at the bottom are slidably arranged inside the frame 142. Connecting strips 147 are rotatably connected to the front end faces of the three sets of reversing wheels 144 located at the bottom. Two sets of elastic ropes 148 are fixed to the inner wall of the frame 142 at the bottom of the connecting strips 147. The wires 110 are located in the frame 142 and are distributed in a zigzag pattern around the multiple sets of reversing wheels 144.
[0030] The inner wall of the frame 142 is provided with three sets of travel grooves 146. The end faces of the three sets of reversing wheels 144 located below are rotatably connected to a base plate 145 extending into the travel groove 146. A constraint ring 1451 is fixed on the outer wall of the base plate 145. The inner wall of the travel groove 146 is provided with a constraint groove 1461 for the constraint ring 1451 to slide.
[0031] When a user holds the charging gun 120 to charge their vehicle, the movement of the charging gun 120 exerts a pulling force on the power cord 110, causing the power cord 110 to move and gradually extend from the frame 142. At this time, the power cord 110 exerts an upward pulling force on the three sets of directional rollers 144 located at the bottom of the frame 142. These directional rollers 144 drive the base plate 145 on its end face to slide upward along the travel groove 146, and rotate as the power cord 110 moves. This makes the extension of the power cord 110 smoother. Furthermore, because the charging gun 120 has a certain connection force (even a locking effect) with the car's charging port, the upward movement of the three sets of directional rollers 144 at the bottom... When the connecting bar 147 is raised and the elastic rope 148 is stretched, a downward squeezing force is applied to the wire 110. At this time, the wire 110 connected to the vehicle is in a relatively taut and suspended state, so it will not slide on the ground and cause wear. Similarly, when the user removes the charging gun 120 from the vehicle and inserts it into the outer wall of the charging cabinet 100, the wire 110 will automatically be stored in the frame 142 and distributed in a folded-back shape due to the gravity of the three sets of reversing wheels 144 below and the assistance of the elastic rope 148. The wire 110 is automatically stored and will not be placed messily on the ground, thus preventing other vehicles from running over the wire 110 when reversing, thereby extending the service life of the wire 110.
[0032] The charging cabinet 100 consists of an outer shell 101 and an inner shell 102. The sound insulation cotton 103 between the two absorbs the noise generated by the internal cooling fan, thus reducing the volume transmitted to the outside and avoiding affecting the surrounding people.
[0033] Please refer to this carefully. Figure 1 The charging cabinet 100 has gun holders fixed on both sides for plugging in the charging gun 120, and the internal dimensions of the gun holders match those of the charging gun 120.
[0034] Provide storage space for the charging gun 120, ensuring that it can be locked onto both sides of the charging cabinet 100.
[0035] Please refer to this carefully. Figure 1 The front surface of the charging cabinet 100 is equipped with a movable door, and the front surface of the movable door is equipped with a control panel.
[0036] Maintenance personnel can open the access door to perform internal repairs, and control the charging time and scan payment amounts via the control panel.
[0037] Please refer to this carefully. Figure 1 and Figure 2 The outer wall of the frame 142 is provided with a movable plate 141, which is detachably connected to the frame 142 by bolts.
[0038] It allows for easy connection of the wire 110 through the frame 142 to the charging cabinet 100, as well as subsequent replacement of the aging wire 110.
[0039] Please refer to this carefully. Figure 4 The upper and lower ends of the frame 142 are provided with channels 149 for the sliding of the power supply line 110. The bottom of the frame 142 is covered with a sponge sleeve 143 outside the wire 110, and the sponge sleeve 143 is fixed to the bottom of the frame 142.
[0040] The opening of channel 149 allows the wire 110 to enter the frame 142. With the help of sponge sleeve 143, dust and other dirt adhering to the outer wall of the wire 110 can be cleaned, ensuring the cleanliness of the inside of the frame 142 and ensuring the smooth entry of the wire 110 into the frame 142.
[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A direct current charging pile with a noise reduction structure, characterized in that, Include: The charging cabinet (100) includes an outer shell (101) located on the outer side, the inner side of the outer shell (101) is provided with an inner shell (102), the cavity is formed between the outer shell (101) and the inner shell (102), and the cavity is fitted with sound insulation cotton (103), both sides of the charging cabinet (100) are fitted with charging gun (120), the bottom of the charging gun (120) is provided with an electric wire (110) connected with the charging cabinet (100), and the outer wall of both sides of the charging cabinet (100) is fixed with a storage assembly (140) for storing the electric wire (110); The storage assembly (140) includes a frame (142) fixed to the side wall of the charging cabinet (100), a plurality of reversing wheels (144) are rotatably arranged in the frame (142) near the upper and lower inner walls, three groups of reversing wheels (144) are slidably arranged in the frame (142), the front end surface of the three groups of reversing wheels (144) is rotatably connected with a connecting strip (147), the bottom of the connecting strip (147) is provided with two groups of elastic ropes (148) fixed to the inner wall of the frame (142), and the electric wire (110) is arranged in the frame (142) and is distributed in a folded manner through a plurality of reversing wheels (144).
2. The direct current charging pile with a noise reduction structure according to claim 1, characterized in that, The two sides of the charging cabinet (100) are fixed with a gun seat for inserting the charging gun (120), and the inner size of the gun seat is consistent with the charging gun (120).
3. The direct current charging pile with a noise reduction structure according to claim 1, characterized in that, The front surface of the charging cabinet (100) is rotatably provided with a movable door, and the front surface of the movable door is provided with a control panel.
4. The direct current charging pile with a noise reduction structure according to claim 1, characterized in that, The outer wall of the frame (142) is provided with a movable plate (141), and the movable plate (141) is detachably connected with the frame (142) by bolts.
5. The direct current charging pile with a noise reduction structure according to claim 1, characterized in that, The upper and lower ends of the frame (142) are provided with channels (149) for sliding the electric wire (110), and the bottom of the frame (142) is provided with a sponge sleeve (143) outside the electric wire (110).
6. The direct current charging pile with a noise reduction structure according to claim 1, characterized in that, The inner wall of the frame (142) is provided with three groups of stroke grooves (146), and the end surface of the three groups of reversing wheels (144) is rotatably connected with a base disc (145) extending into the stroke groove (146).
7. The direct current charging pile with a noise reduction structure according to claim 6, characterized in that, The outer wall of the base disc (145) is fixed with a constraint ring (1451), and the inner wall of the stroke groove (146) is provided with a constraint groove (1461) for sliding the constraint ring (1451).