Vehicle charging seat

Abstract

The utility model relates to the technical field of vehicle equipment, and provides a vehicle charging seat, which is characterized in that a PCB (Printed Circuit Board) and a signal terminal are arranged in a shell, and one end of the signal terminal is plugged with a wiring terminal on the PCB; the charging terminal is arranged in the shell, penetrates through the PCB and is used for being connected with a charging cable, the heat conduction silica gel is arranged on a heat conduction resistor of the PCB in a sleeving mode, and the heat conduction silica gel makes contact with the charging terminal. According to the utility model, the PCB is arranged, the signal terminals are installed on the wiring terminals on the PCB, the electrical performance is obviously optimized through the integrated circuit design, the signal transmission stability is improved, and the reliability, the production efficiency and the environmental adaptability of the charging seat are integrally improved. The heat conduction silicon rubber is arranged on the heat conduction resistor in a sleeving mode and makes contact with the charging terminal, the gap between the heat conduction resistor and the charging terminal is filled through soft physical characteristics, interference is isolated, the temperature of the charging terminal is accurately obtained, and the charging safety and the charging efficiency of a vehicle are improved.

Description

A car charging dock Technical Field

[0001] This utility model relates to the field of vehicle equipment technology, and more specifically, to a vehicle charging dock. Background Technology

[0002] With the rapid popularization of new energy vehicles, vehicle charging docks, as an important interface device connecting electric vehicles to the power source, have developed rapidly. The charging efficiency and safety of charging docks have become key factors in ensuring normal vehicle use and user experience. Highly efficient and stable charging performance not only shortens charging time and improves user satisfaction, but also ensures electrical safety during the charging process, preventing equipment damage or even safety accidents caused by overheating, short circuits, or other faults.

[0003] Currently, automotive charging docks typically have a lead frame with multiple lead terminals for electrical connection and current transmission. However, the manufacturing process of these lead terminals is complex, increasing the production cost of the charging dock. Furthermore, to ensure charging safety, some charging docks incorporate thermistors on the lead terminals for real-time temperature monitoring. However, in actual use, mechanical vibrations often cause changes in the contact state between the thermistor and the charging terminal, or gaps may form between them due to component tolerances and structural design limitations. This leads to unstable and inaccurate temperature measurement signals, increasing the risk of temperature monitoring failure. This not only affects safety protection during charging but also reduces charging efficiency. Simultaneously, the design of the lead frame limits internal space layout, restricting the installation positions of the thermistors on the lead terminals and making them prone to mechanical vibration and poor contact. Therefore, the structural limitations of the lead frame and the instability of the thermistor installation interact, jointly contributing to the technical challenges of high production costs, inaccurate temperature measurement, and safety hazards in charging docks. Summary of the Invention

[0004] The problem this invention addresses is how to achieve more efficient and safer charging.

[0005] To solve the above problems, this utility model provides a vehicle charging dock, including a housing, a PCB board, signal terminals, charging terminals, and thermally conductive silicone.

[0006] Both the PCB board and the signal terminal are disposed inside the housing, and one end of the signal terminal is plugged into the wiring terminal on the PCB board;

[0007] The charging terminal is disposed inside the housing and extends through the PCB board, and is used to connect to the charging cable. A thermistor is disposed on the PCB board, and the thermally conductive silicone is sleeved on the thermistor and in contact with the charging terminal.

[0008] Optionally, the vehicle charging dock further includes a grounding terminal, which is disposed inside the housing and extends through the PCB board, and is used to connect to a grounding cable.

[0009] Optionally, the housing includes a base on which a plurality of first tube structures are disposed. The dimensions of the plurality of first tube structures are respectively adapted to the dimensions of the signal terminal, the charging terminal and the grounding terminal. The signal terminal, the charging terminal and the grounding terminal are respectively disposed on the base through the corresponding first tube structures.

[0010] Optionally, the housing further includes a rear cover for connection with the base. The PCB board is disposed between the rear cover and the base, and a second grounding tube structure and a second charging tube structure are provided on the end face of the rear cover away from the base. The grounding terminal passes through the second grounding tube structure, and the charging terminal passes through the second charging tube structure.

[0011] Optionally, the charging cable is connected to the charging terminal through the second charging tube structure, and a first cable sealing ring is provided between the charging cable and the second charging tube structure;

[0012] The grounding cable is connected to the grounding terminal through the second grounding conduit structure, and a second cable sealing ring is provided between the grounding cable and the second grounding conduit structure.

[0013] Optionally, the vehicle charging dock further includes a first cable end cap, which is connected to the second charging tube structure. The first cable end cap is provided with a wire passage hole, and the charging cable is disposed in the wire passage hole.

[0014] It also includes a second cable end cap, which is connected to the second grounding pipe structure. The second cable end cap is provided with a wire-passing hole, and the grounding cable is placed in the wire-passing hole.

[0015] Optionally, the first cable end cap is provided with a first protrusion, the first protrusion is provided with a first locking hole, and the second charging tube structure is provided with a first protrusion on the outer wall of the end facing the first cable end cap. The first cable end cap and the second charging tube structure are engaged through the first locking hole and the first protrusion.

[0016] Optionally, a connector is provided on the PCB board, and the thermally conductive silicone and the wiring terminals are connected to the connector through a copper-clad circuit on the PCB board.

[0017] Optionally, a sealing ring is provided between the rear cover and the base.

[0018] Optionally, the rear cover is provided with a second protrusion, the second protrusion is provided with a second locking hole, and the outer wall of the end of the base facing the rear cover is provided with a second protrusion, and the rear cover and the base are engaged through the second locking hole and the second protrusion.

[0019] The beneficial effects of this vehicle charging dock are as follows: By mounting the signal terminals on the wiring terminals of the PCB board, the electrical performance is significantly optimized through integrated circuit design. The multi-layer copper foil on the PCB board achieves layered isolation and impedance matching between power and signals, reducing signal crosstalk and improving transmission stability. Simultaneously, continuous copper foil conduction eliminates the contact resistance of the lead frame and the risk of vibration loosening. Furthermore, the PCB board allows for a lightweight and compact design. The large-area heat-conducting copper foil and embedded heat pipe structure on the PCB board greatly improve heat conduction efficiency, precisely controlling the temperature of local heat sources, thus improving the overall reliability, production efficiency, and environmental adaptability of the charging dock. Placing the PCB board and signal terminals within the housing effectively improves the installation stability and safety of the PCB board and signal terminals. The charging terminals are located within the housing, penetrate the PCB board, and connect to the charging cable. During charging, the vehicle charging dock connects to the power source, and electrical energy charges the vehicle through the charging terminals and charging cable. Thermally conductive silicone (such as room temperature vulcanizing silicone) is fitted onto the thermal resistor on the PCB board and contacts the charging terminal. Its relatively soft physical properties fill the gap between the thermal resistor and the charging terminal, and isolate interference, allowing the thermistor to accurately measure the temperature of the charging terminal. This effectively compensates for structural defects in the PCB board, significantly improving temperature measurement accuracy and reliability. Simultaneously, the thermally conductive silicone forms an elastomer that absorbs vibration energy, ensuring constant contact with the charging terminal and accurate temperature monitoring. This prevents charging accidents caused by excessively high charging temperatures, effectively improving vehicle charging safety and efficiency. Attached Figure Description

[0020] Figure 1 is a structural schematic diagram of a vehicle charging dock according to an embodiment of the present utility model;

[0021] Figure 2 is an exploded view of the vehicle charging dock according to an embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of the structure of the thermally conductive silicone and charging terminals in the charging base according to an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1-Housing; 11-Base; 111-First tube structure; 112-Second protrusion; 12-Rear cover; 121-Second ground tube structure; 122-Second charging tube structure; 1221-First protrusion; 13-Second protrusion; 131-Second locking hole; 2-PCB board; 21-Terminal; 23-Connector; 3-Signal terminal; 4-Charging terminal; 5-Thermal conductive silicone; 6-Grounding terminal; 7-Grounding cable; 8-Charging cable; 9-First cable sealing ring; 10-Second cable sealing ring; 100-First cable tail cap; 101-First protrusion; 1011-First locking hole; 200-Sealing ring; 300-Mounting screw. Detailed Implementation

[0025] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0026] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0027] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0028] As shown in Figures 1 and 2, an embodiment of this utility model provides a vehicle charging dock, which includes a housing, a PCB board 2, a signal terminal 3, a charging terminal 4, and thermally conductive silicone 5.

[0029] Both the PCB board 2 and the signal terminal 3 are disposed inside the housing, and one end of the signal terminal 3 is plugged into the wiring terminal 21 on the PCB board 2.

[0030] The charging terminal 4 is disposed inside the housing and extends through the PCB board 2, and is used to connect to the charging cable. A thermistor is disposed on the PCB board 2, and the thermally conductive silicone 5 is sleeved on the thermistor and in contact with the charging terminal 4.

[0031] Specifically, the PCB board 2 is provided with a through hole that matches the size of the charging terminal 4. During installation, the charging terminal 4 passes through the through hole to pass through the PCB board 2 and is installed inside the housing.

[0032] In this embodiment, the signal terminal 3 is mounted on the wiring terminal on the PCB board 2. Integrated circuit design significantly optimizes electrical performance. The multi-layered copper foil on the PCB board 2 achieves layered isolation and impedance matching between power and signal, reducing signal crosstalk and improving transmission stability. Simultaneously, continuous copper foil conduction eliminates the contact resistance of the lead frame and the risk of vibration loosening. Furthermore, the PCB board 2 allows for a lightweight and compact design. The large-area thermally conductive copper foil and embedded heat pipe structure on the PCB board 2 greatly improve heat conduction efficiency, precisely controlling the temperature of local heat sources, and overall improving the reliability, production efficiency, and environmental adaptability of the charging dock. Placing the PCB board 2 and signal terminal 3 within the housing effectively improves the installation stability and safety of the PCB board 2 and signal terminal 3. The charging terminal 4 is located within the housing, passes through the PCB board 2, and connects to the charging cable. During charging, the vehicle charging dock is connected to the power source, and electrical energy is supplied to the vehicle through the charging terminal 4 and the charging cable. As shown in Figure 3, thermally conductive silicone 5 (e.g., room temperature vulcanizing silicone structure) is fitted onto the thermistor of the PCB board 2 and contacts the charging terminal 4. Its relatively soft physical properties fill the gap between the thermistor and the charging terminal 4, and isolate interference, allowing the thermistor to accurately measure the temperature of the charging terminal 4. This effectively compensates for structural defects in the PCB board 2, significantly improving temperature measurement accuracy and reliability. Simultaneously, after curing, the thermally conductive silicone 5 forms an elastomer that absorbs vibration energy, ensuring continuous contact between the thermally conductive silicone 5 and the charging terminal 4 to obtain its temperature. This enables precise temperature monitoring, preventing charging accidents caused by excessively high charging temperatures and effectively improving vehicle charging safety and efficiency.

[0033] Meanwhile, in related technologies, when using lead-wire frames to install terminals, it is necessary to manually connect the terminals to the preset positions via lead wires, which is time-consuming and labor-intensive. Each terminal also requires a cable, and multiple cables need to be sealed sequentially, resulting in low operational efficiency and a complex charging base structure. During use, lead wires are prone to detachment and cable damage, leading to charging failures. In contrast, the vehicle charging base of this invention integrates all signal terminals 3 onto the PCB board 2. The copper-clad circuitry of the PCB board 2 enables rapid terminal integration and signal reception processing, reducing the number of cables connected at the rear of the charging base. Its simple structure reduces manual crimping time, improves charging base installation efficiency, and the fewer cables make cable sealing easier. Furthermore, the tight connection between the signal terminals 3 and the PCB board 2 reduces connection breakage due to external forces, ensuring stable signal output and thus improving charging stability.

[0034] It should be noted that a microcontroller (MCU), such as an STM32 or Arduino, a single-chip microcomputer, or an embedded processor, can be soldered onto PCB board 2. These chips have built-in processors, memory, and input / output interfaces, and can run programs to implement logic control. Signal terminal 3 provides feedback on the mating status of the charging gun and socket, the installation position, and provides signals for charging and power-off. The microcontroller obtains this information and performs simple control based on it to prevent charging abnormalities. For example, if the installation position does not match the preset installation position, charging will not proceed. The thermal conductive silicone 5 needs to be selected according to the requirements of temperature, vibration, insulation, etc., and the coating thickness and air bubbles should be controlled through standardized processes to ensure long-term stable performance. The thermal conductive silicone 5 feeds back temperature information to the microcontroller, which performs charging control based on the obtained temperature information. For example, when the obtained temperature exceeds the preset maximum temperature, charging will stop to avoid charging accidents.

[0035] Optionally, the vehicle charging dock further includes a grounding terminal 6, which is disposed inside the housing and extends through the PCB board 2, and is used to connect to a grounding cable.

[0036] Specifically, as shown in Figure 2, the PCB board 2 has a through hole that matches the size of the grounding terminal 6. During installation, the grounding terminal 6 passes through the through hole to pass through the PCB board 2 and is installed inside the housing. The grounding terminal 6 is located inside the housing for protection. The grounding terminal 6 is connected to the grounding cable to achieve grounding protection before, during, and after charging.

[0037] Optionally, the housing includes a base 11, on which a plurality of first tube structures 111 are provided. The dimensions of the plurality of first tube structures 111 are respectively adapted to the dimensions of the signal terminal 3, the charging terminal 4 and the grounding terminal 6. The signal terminal 3, the charging terminal 4 and the grounding terminal 6 are respectively disposed on the base 11 through the corresponding first tube structure 111.

[0038] Specifically, as shown in Figure 2, the housing includes a base 11, on which multiple first tube structures 111 are disposed. Each first tube structure 111 is an integral cylindrical tube with the base 11. The dimensions of the first tube structures 111 are matched to the dimensions of the charging terminal 4, signal terminal 3, and ground terminal 6, respectively, for fixing the charging terminal 4, signal terminal 3, and ground terminal 6. The end face of the base 11 facing away from each terminal matches a power connector or device panel connector, serving as a charging interface for connecting the charging base to the power connector or device panel connector for charging. Furthermore, the base 11 is made of insulating material, increasing safety during use.

[0039] Optionally, the housing further includes a rear cover 12 for connection with the base 11. The PCB board 2 is disposed between the rear cover 12 and the base 11. A second grounding tube structure 121 and a second charging tube structure 122 are provided on the end face of the rear cover 12 away from the base 11. The grounding terminal 6 passes through the second grounding tube structure 121, and the charging terminal 4 passes through the second charging tube structure 122.

[0040] Specifically, as shown in Figure 2, the housing also includes a rear cover 12, which is connected to the base 11 to form the housing of the internal central control. A PCB board 2 is arranged between the rear cover 12 and the base 11 to fix and protect the PCB board 2 and each terminal, so as to meet the product installation requirements.

[0041] The second ground tube structure 121 and the second charging tube structure 122 are cylindrical tubes integrated with the back cover 12. The size of the second ground tube structure 121 matches the size of the grounding terminal 6. The grounding terminal 6 is fixed inside the second ground tube structure 121. The size of the second charging tube structure 122 matches the size of the charging terminal 4. The charging terminal 4 is fixed inside the second charging tube structure 122 to ensure the stability of the internal structure of the charging base.

[0042] It should be noted that the PCB board 2 can be mounted on the back cover 12 or the base 11 using mounting screws 300, depending on the actual situation.

[0043] Optionally, the charging cable is connected to the charging terminal 4 through the second charging tube structure 122, and a first cable sealing ring 9 is provided between the charging cable and the second charging tube structure 122.

[0044] The grounding cable is connected to the grounding terminal 6 through the second grounding conduit structure 121, and a second cable sealing ring 10 is provided between the grounding cable and the second grounding conduit structure 121.

[0045] Specifically, as shown in Figure 2, the charging cable is connected to the charging terminal 4 through the second charging tube structure 122 to ensure the stability of the connection. A first cable sealing ring 9 is provided between the charging cable and the second charging tube structure 122 to provide waterproof and dustproof functions, preventing dirt from accumulating inside the charging socket and extending its service life. The grounding cable is connected to the grounding terminal 6 through the second grounding tube structure 121 to ensure the stability of the connection. A second cable sealing ring 10 is provided between the grounding cable and the second grounding tube structure 121 to provide waterproof and dustproof functions, preventing dirt from accumulating inside the charging socket and extending its service life.

[0046] Optionally, as shown in Figure 2, the vehicle charging dock further includes a first cable end cap 100, which is connected to the second charging tube structure 122. The first cable end cap 100 is provided with a wire-passing hole, and the charging cable is disposed in the wire-passing hole.

[0047] The vehicle charging base also includes a second cable end cap 400, which is connected to the second grounding pipe structure 121. The second cable end cap 400 is provided with a wire-passing hole, and the grounding cable is disposed in the wire-passing hole.

[0048] Specifically, the first cable end cap 100 is used to fix the charging cable and provide support for the charging cable. In addition, the first cable sealing ring 9 can be disposed between the first cable end cap 100 and the second charging tube structure 122 to provide a certain pressure to the first cable sealing ring 9 and ensure that the first cable sealing ring 9 plays a sealing role.

[0049] The second cable end cap 400 is used to fix the grounding cable and provide support for the grounding cable. In addition, the second cable sealing ring 10 can be disposed between the second cable end cap 400 and the second grounding pipe structure 121 to provide a certain pressure to the second cable sealing ring 10 and ensure that the second cable sealing ring 10 plays a sealing role.

[0050] Optionally, the first cable end cap 100 is provided with a first protrusion 101, the first protrusion 101 is provided with a first locking hole 1011, and the second charging tube structure 122 is provided with a first protrusion 1221 on the outer wall of the end facing the first cable end cap 100. The first cable end cap 100 and the second charging tube structure 122 are engaged through the first locking hole 1011 and the first protrusion 1221.

[0051] Specifically, as shown in Figure 2, the position of the first slot 1011 matches the position of the first protrusion 1221 to achieve precise engagement of the first cable tail cover 100 and the second charging tube structure 122, ensuring the stability of the cable connection.

[0052] Optionally, a connector 23 is provided on the PCB board 2, and the thermally conductive silicone 5 and the wiring terminal 21 are connected to the connector 23 through the copper-clad circuit on the PCB board 2.

[0053] Specifically, the signal acquired by the PCB board 2 inside the charging dock is transmitted to the outside of the charging socket through the connector 23. The connector 23 can be a 10-pin connector with 10 connection holes, which are respectively connected to the pins on the PCB board 2 and the thermal conductive silicone 5. The thermal conductive silicone 5 transfers the heat information of the acquired charging terminal 4 to the outside of the charging dock through the connector 23 for temperature charging control to ensure charging safety.

[0054] Optionally, as shown in Figure 2, a sealing ring 200 is provided between the rear cover 12 and the base 11, which serves to seal, waterproof and dustproof the base 11 and the rear cover 12.

[0055] Optionally, the rear cover 12 is provided with a second protrusion 13, the second protrusion 13 is provided with a second snap hole 131, and the outer wall of the base 11 facing the rear cover 12 is provided with a second protrusion 112. The rear cover 12 and the base 11 are snapped together by the second snap hole 131 and the second protrusion 112.

[0056] Specifically, as shown in Figure 2, the position of the second slot 131 matches the position of the second protrusion 112 to achieve precise engagement between the back cover 12 and the base 11, ensuring the connection stability of the charging base housing.

[0057] Another embodiment of the present invention includes a vehicle charging dock as described above.

[0058] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A vehicle charging dock, characterized in that, The device includes a housing, a PCB board (2), a signal terminal (3), a charging terminal (4), and thermally conductive silicone (5). The PCB board (2) and the signal terminal (3) are both located inside the housing, and one end of the signal terminal (3) is plugged into a wiring terminal (21) on the PCB board (2). The charging terminal (4) is located inside the housing and passes through the PCB board (2), and is used to connect to a charging cable. A thermistor is provided on the PCB board (2), and the thermally conductive silicone (5) is sleeved on the thermistor and is in contact with the charging terminal (4).

2. The vehicle charging dock according to claim 1, characterized in that, It also includes a grounding terminal (6), which is disposed inside the housing and extends through the PCB board (2) and is used to connect to a grounding cable.

3. The vehicle charging dock according to claim 2, characterized in that, The housing includes a base (11), on which a plurality of first tube structures (111) are provided. The dimensions of the plurality of first tube structures (111) are adapted to the dimensions of the signal terminal (3), the charging terminal (4) and the grounding terminal (6), respectively. The signal terminal (3), the charging terminal (4) and the grounding terminal (6) are respectively disposed on the base (11) through the corresponding first tube structure (111).

4. The vehicle charging dock according to claim 3, characterized in that, The housing also includes a rear cover (12), which is used to connect with the base (11). The PCB board (2) is disposed between the rear cover (12) and the base (11). The rear cover (12) is provided with a second ground tube structure (121) and a second charging tube structure (122) on the end face away from the base (11). The grounding terminal (6) is inserted into the second ground tube structure (121), and the charging terminal (4) is inserted into the second charging tube structure (122).

5. The vehicle charging dock according to claim 4, characterized in that, The charging cable is connected to the charging terminal (4) through the second charging tube structure (122), and a first cable sealing ring (9) is provided between the charging cable and the second charging tube structure (122); the grounding cable is connected to the grounding terminal (6) through the second ground tube structure (121), and a second cable sealing ring (10) is provided between the grounding cable and the second ground tube structure (121).

6. The vehicle charging dock according to claim 5, characterized in that, It also includes a first cable end cap (100), which is connected to the second charging tube structure (122). The first cable end cap (100) is provided with a wire hole, and the charging cable is disposed in the wire hole. It also includes a second cable end cap (400), which is connected to the second grounding tube structure (121). The second cable end cap (400) is provided with a wire hole, and the grounding cable is disposed in the wire hole.

7. The vehicle charging dock according to claim 6, characterized in that, The first cable end cap (100) is provided with a first protrusion (101), and the first protrusion (101) is provided with a first locking hole (1011). The second charging tube structure (122) is provided with a first protrusion (1221) on the outer wall of the end facing the first cable end cap (100). The first cable end cap (100) and the second charging tube structure (122) are engaged through the first locking hole (1011) and the first protrusion (1221).

8. The vehicle charging dock according to claim 1, characterized in that, A connector (23) is provided on the PCB board (2), and the thermally conductive silicone (5) and the terminal block (21) are connected to the connector (23) through the copper-plated circuit on the PCB board (2).

9. The vehicle charging dock according to claim 4, characterized in that, A sealing ring (200) is provided between the rear cover (12) and the base (11).

10. The vehicle charging dock according to claim 6, characterized in that, The rear cover (12) is provided with a second protrusion (13), and the second protrusion (13) is provided with a second snap hole (131). The base (11) is provided with a second protrusion (112) on the outer wall of the end facing the rear cover (12). The rear cover (12) and the base (11) are snapped together by the second snap hole (131) and the second protrusion (112).

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