Vehicle-mounted charger

Abstract

The utility model discloses a vehicle-mounted charger, which comprises an integrally closed shell, a circuit board component, a battery module, a battery module, a battery module, a battery module, a battery module, a battery module, a battery module, a battery module, a battery module and a battery module, the auxiliary circuit board and the main circuit board are configured to be capable of being inserted into the integrated closed shell in sequence, and the auxiliary circuit board and the main circuit board are spliced and electrically connected; during installation, the auxiliary circuit board is firstly installed in the integrated closed shell and positioned, and then the main circuit board is installed in the integrated closed shell and installed with the auxiliary circuit board in a butt joint mode. According to the utility model, the integrated closed shell is adopted, and the structural design and the installation process of the circuit board are optimized, so that the sequential installation and reliable electric connection of the auxiliary circuit board and the main circuit board can be smoothly realized in a limited internal space, and the waterproofness and the overall strength are improved on the premise of ensuring the product performance.

Description

Technical Field

[0001] This utility model relates to a vehicle charger, specifically a vehicle charger. Background Technology

[0002] Currently, with the increasing demand for vehicle charging, the market has placed higher demands on the structural design of vehicle chargers, especially in terms of waterproof performance, aesthetic integrity, and structural strength. Traditional vehicle chargers typically adopt a modular shell structure, which is assembled from multiple parts. Although this structure allows for relatively convenient installation of internal circuit boards, it has some obvious drawbacks during use.

[0003] First, the modular design of the casing can easily create gaps at the joints, which not only affects the overall waterproof performance but may also lead to structural loosening over long-term use, reducing the charger's strength and durability. Furthermore, the modular structure limits the product's seamless appearance, making it difficult to meet the growing market demand for aesthetics and refinement. Therefore, designing a vehicle charger with a unibody, enclosed casing is an ideal solution to address these issues.

[0004] However, no vehicle charger currently features a fully enclosed casing. This is because enclosed structures are difficult to manufacture, and the installation of internal components is extremely challenging. Specifically, since a fully enclosed casing only opens at one end, the internal cavity becomes larger, making manufacturing difficult and providing insufficient operating space for assembly. Therefore, reliable installation and electrical connection of internal circuit boards cannot be achieved in current technologies. This technological bottleneck limits the industry's exploration of fully enclosed designs, preventing effective improvements in charger waterproofing, structural strength, and aesthetic integration. Utility Model Content

[0005] To address the aforementioned issues, this utility model provides a vehicle charger that optimizes the circuit board's structural design and installation process, enabling the sequential installation and reliable electrical connection of the secondary and main circuit boards within a limited internal space. This improves waterproofing and overall strength while ensuring product performance, enhances the integrity of the product's appearance, and meets market demand for high-quality vehicle chargers.

[0006] This utility model is achieved through the following technical solution: a vehicle charger, including an integrated enclosed shell, the integrated enclosed shell including a main body and an end for accommodating components, the main body and the end having an inner through hole and a mounting cavity, the diameter of the mounting cavity being larger than that of the inner through hole;

[0007] A circuit board assembly comprising at least one main circuit board and at least one secondary circuit board, the secondary circuit board and the main circuit board being configured to be sequentially inserted into an integrated enclosed housing.

[0008] During installation, the secondary circuit board is first installed into the integrated enclosed housing and positioned, and then the main circuit board is installed into the integrated enclosed housing and connected to the secondary circuit board.

[0009] Alternatively, the main circuit board can be installed into the integrated enclosed housing and positioned first, and then the secondary circuit board can be installed into the integrated enclosed housing and connected to the main circuit board. The installation order of the main circuit board and the secondary circuit board is not limited, and they can be installed into the enclosed housing first at will.

[0010] As a preferred technical solution, a mounting cavity is formed in the end, the diameter of which is larger than that of the inner through hole. An inner through hole communicating with the mounting cavity is formed in the main body. One end of the inner through hole is provided with an opening. The main circuit board and the sub-circuit board enter the mounting cavity for conductive assembly through the opening and the inner through hole.

[0011] Alternatively, the sub-circuit board can be installed into the mounting cavity from one end face, and the main circuit board can be installed into the mounting cavity from the opening side of the inner through hole and electrically connected to the sub-circuit board.

[0012] As a preferred technical solution, the sub-circuit board is provided with a first interface and a first electrical connector, the main circuit board is provided with a second interface and a second electrical connector, and the end face of the end is provided with a first assembly port corresponding to the first interface and a second assembly port corresponding to the second interface. The number of the first assembly port, the second assembly port, the first interface, and the second interface is one or more.

[0013] As a preferred technical solution, the first electrical connector is used to make a conductive connection with the second electrical connector after plugging in, and the first interface and the second interface are used as the charging interface of the vehicle charger, or extended to multiple charging interfaces.

[0014] As a preferred technical solution, the first circuit electrical connector and the second circuit electrical connector can be electrically connected within the mounting cavity to achieve conductive connection between the main circuit board and the sub-circuit board.

[0015] As a preferred technical solution, the integrated enclosed shell is a one-piece molded structure, and the outer diameter of its end is larger than the outer diameter of the main body.

[0016] As a preferred technical solution, one end of the opening is sealed by an end cap, which closes the integrated enclosed housing. Power is drawn from the positive terminal of the cigarette lighter via a spring device. The integrated enclosed housing has openings on both sides, which connect to the negative terminal of the cigarette lighter via negative electrical connection points.

[0017] The beneficial effects of this utility model are: by adopting an integrated closed shell, this utility model effectively avoids the gap problem caused by traditional spliced ​​shells, thereby significantly improving the waterproof performance and overall structural strength of the charger, making it more adaptable to the complex and ever-changing usage environment inside the vehicle.

[0018] Meanwhile, the one-piece molded structure of the shell makes the charger look more integrated and aesthetically pleasing, meeting the market's demand for high quality and simple design.

[0019] Furthermore, by optimizing the structure and installation sequence of the circuit board, this invention successfully overcomes the operational difficulties of the integrated enclosed housing during installation, allowing the secondary and primary circuit boards to be inserted sequentially into the limited internal space and achieve reliable electrical connection. This simplifies the installation process, improves production efficiency and assembly accuracy, and effectively reduces production costs. The overall structure is rationally designed and easy to install. While ensuring reliable connection of each component, it also improves the durability and stability of the product, making it suitable for mass production and meeting the high standards required in practical applications. Attached Figure Description

[0020] 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 these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the shell of this utility model;

[0023] Figure 3 This is an exploded view of the present invention after the secondary wiring has been installed;

[0024] Figure 4 This is an exploded structural diagram of the present invention after the main and auxiliary circuit boards have been installed.

[0025] Figure 5 This is a schematic diagram of the structure of the main and auxiliary circuit boards after they are plugged in.

[0026] Explanation of reference numerals in the attached figures:

[0027] 2. Integrated enclosed housing; 22. Main body; 21. End; 9. Main circuit board; 11. Sub-circuit board; 8. Mounting cavity; 7. Inner through hole; 1. End cover; 3. First interface; 12. First circuit electrical connector; 4. Second interface; 10. Second circuit electrical connector; 5. First assembly port; 6. Second assembly port; 13. Negative electrical connection contact point. Detailed Implementation

[0028] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0029] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0030] like Figure 1 As shown, this utility model relates to a vehicle charger, which mainly includes an integrated enclosed housing 2 and an internal circuit board assembly. The integrated enclosed housing 2 includes a main body 22 and end portions 21, with an overall one-piece molded design to ensure the housing's waterproof performance and overall structural strength, thus adapting to the special requirements of the vehicle environment. The design of the integrated enclosed housing 2 differs from traditional spliced ​​housing structures. The one-piece molding method improves the overall protective effect of the product, avoids gaps that may occur in multi-part spliced ​​structures, improves waterproof and dustproof performance, and provides higher durability in the vehicle environment.

[0031] like Figure 2 As shown, a mounting cavity 8 is provided within the end 21 of the housing, which is used to accommodate and secure the internal circuit board assembly. Simultaneously, an internal through hole 7 is provided within the main body 22, which communicates with the mounting cavity 8 and has an opening at one end. The open end of the internal through hole 7 can be sealed by an end cap 1, thereby further enhancing the protective performance of the integrated enclosed housing 2.

[0032] The sealing method of end cap 1 can adopt a variety of sealing structures, such as threaded connection, snap connection or sealing gasket structure, to ensure the airtightness of the opening.

[0033] like Figures 3-5 As shown, the circuit board assembly of this utility model includes a main circuit board 9 and a secondary circuit board 11. The secondary circuit board 11 and the main circuit board 9 are configured to be inserted sequentially into the inner through hole 7 and finally positioned in the mounting cavity 8. Due to the relatively compact internal space of the mounting cavity 8 and the inner through hole 7, a sequential installation method for the secondary circuit board 11 and the main circuit board 9 is designed.

[0034] Specifically, during installation, the sub-circuit board 11 is first installed to the open end of the inner through hole 7, and then guided into the mounting cavity 8 through this channel; alternatively, it can be entered into the mounting cavity 8 by enlarging the first or second interface, such as... Figure 3 As shown. The sub-circuit board 11 can be accurately aligned with the preset position when fixed in the mounting cavity 8. The key to this installation process is to sequentially introduce the circuit board assembly through the opening of the integrated enclosed housing 2, ensuring that each component can smoothly enter the internal space and achieve a stable electrical connection after the final installation is completed.

[0035] In a further technical solution, the secondary circuit board 11 is provided with a first interface 3 and a first electrical connector 12, while the main circuit board 9 is provided with a second interface 4 and a second electrical connector 10. During installation, these interfaces and connectors must be precisely aligned to realize the function of the vehicle charger. For example, the first interface 3 of the secondary circuit board 11 is designed as an input (charging or power supply) interface for connecting to external devices, while the first electrical connector 12 is designed to connect with the second electrical connector 10 of the main circuit board 9 to realize the transmission of electrical signals.

[0036] On the end face 21 of the integrated enclosed housing 2, a first mounting port 5 corresponding to the first interface 3 and a second mounting port 6 corresponding to the second interface 4 are also provided. This design facilitates the provision of external interfaces after the charger is assembled, for connecting devices that need charging, such as mobile phones and digital products, thereby realizing power output.

[0037] During the assembly process, such as Figure 3 As shown, the secondary circuit board 11 is first inserted through the opening of the inner through hole 7, allowing it to pass through the inner through hole 7 and enter the mounting cavity 8. The interface of the secondary circuit board 11 must be aligned with the first mounting port 5 of the end 21. In this step, an external auxiliary device can be used to assist in the precise alignment and fixation of the interface. This auxiliary device can be a connector that matches the first interface 3. Inserting the connector into the first interface completes the positioning of the first interface 3, ensuring that the first interface 3 is accurately located in the first mounting port 5, thereby ensuring the stability of the interface position in subsequent stages of the assembly process. After this step is completed, the secondary circuit board 11 is stably positioned in the mounting cavity 8, and its interface is aligned with the first mounting port 5 of the end 21 of the integrated enclosed housing 2.

[0038] Next, as Figure 4As shown, the main circuit board 9 is inserted through the opening end of the inner through hole 7 and sequentially guided into the mounting cavity 8 through the inner through hole 7. At this time, the interface of the main circuit board 9 must also be aligned with the second assembly port 6 at the end 21. Simultaneously, the second electrical connector 10 on the main circuit board 9 must be electrically connected with the first electrical connector 12 on the auxiliary circuit board 11 to ensure electrical connection between the main and auxiliary circuit boards 11. This utility model specifically considers the docking method of circuit board assemblies in narrow installation spaces. Through reasonable circuit connector position design, the main circuit board 9 and the auxiliary circuit board 11 can quickly achieve electrical conduction when entering the mounting cavity 8. The connector adopts a plug-in method, realizing rapid docking of the main and auxiliary circuit boards 11, and the electrical connection is stable and reliable, reducing internal wiring and connecting devices, and simplifying the assembly process.

[0039] Once the main circuit board 9 is installed and connected to the secondary circuit board 11, the connectors can be removed. After ensuring that both the main and secondary circuit boards 11 are fixed and electrically connected, install the end cover 1 onto the open end of the integrated closed housing 2 to complete the assembly process. During installation, the end cover 1 seals the opening with a sealing structure and is electrically connected to the positive terminal of the cigarette lighter via a spring device, further ensuring the airtightness and protection of the vehicle charger. The first and second interfaces can be of any type, such as USB or Type-C interfaces.

[0040] like Figure 3 As shown, this utility model also includes two negative electrical connection points 13 and one positive contact point 14. Both the negative electrical connection points and the positive contact point are electrically connected to the main circuit board. After the charger is inserted into the cigarette lighter, it makes electrical contact with the cigarette lighter through each contact point.

[0041] This invention's assembly method effectively solves the problem of splicing shells in traditional charger structures, achieving sequential installation and reliable electrical connection within a single, enclosed shell 2. This not only simplifies the assembly process but also improves the product's sealing, structural strength, and waterproof performance. In practical applications, this charger can provide stable power output in vehicle environments and is less susceptible to external environmental factors, demonstrating broad market application prospects.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A vehicle charger, characterized in that: It includes an integrated enclosed housing (2), which includes a main body (22) and an end (21) for accommodating components. The main body (22) and the end (21) are provided with an inner through hole and a mounting cavity, the diameter of which is larger than that of the inner through hole. The circuit board assembly includes at least one main circuit board (9) and at least one sub-circuit board (11), the sub-circuit board (11) and the main circuit board (9) being configured to be sequentially inserted into an integrated enclosed housing (2).

2. The vehicle charger according to claim 1, characterized in that: An installation cavity (8) is formed in the end (21), the diameter of which is larger than the inner through hole. An inner through hole (7) connected to the installation cavity (8) is formed in the main body (22). One end of the inner through hole (7) is provided with an opening. The main circuit board (9) and the sub-circuit board (11) enter the installation cavity (8) through the opening and the inner through hole (7) for conductive assembly. Alternatively, the sub-circuit board (11) can be installed into the mounting cavity from one end face of the end (21), and the main circuit board can be installed into the mounting cavity from the opening side of the inner through hole and electrically connected to the sub-circuit board.

3. The vehicle charger according to claim 1, characterized in that: The sub-circuit board (11) is provided with a first interface (3) and a first electrical connector (12), the main circuit board (9) is provided with a second interface (4) and a second electrical connector (10), and the end face of the end (21) is provided with a first assembly port (5) corresponding to the first interface (3) and a second assembly port (6) corresponding to the second interface (4), and the number of the first assembly port (5), the second assembly port (6) and the first interface (3) and the second interface (4) is one or more.

4. The vehicle charger according to claim 3, characterized in that: The first electrical connector (12) is used to make a conductive connection with the second electrical connector (10) after plugging in. The first interface (3) and the second interface (4) are used as the charging interface of the vehicle charger, or extended to multiple charging interfaces.

5. The vehicle charger according to claim 3, characterized in that: The first electrical connector (12) and the second electrical connector (10) can be electrically connected within the mounting cavity (8) to achieve conductive connection between the main circuit board (9) and the sub-circuit board (11).

6. The vehicle charger according to claim 3, characterized in that: The integrated enclosed shell (2) is a one-piece molded structure, and the outer diameter of its end (21) is larger than the outer diameter of the main body (22).

7. The vehicle charger according to claim 2, characterized in that: One end of the opening is sealed by an end cap (1), and the end cap (1) closes the integrated closed shell (2). The positive terminal of the cigarette lighter is electrically connected to the end cap (2) through a spring device. The two sides of the integrated closed shell (2) have openings, and the negative terminal is electrically connected to the negative terminal of the cigarette lighter through the negative terminal contact point (13) to obtain power.

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