Vehicle-mounted charger

Abstract

The utility model discloses a vehicle-mounted charger. The vehicle-mounted charger comprises a shell, a main circuit board, a charging connector, a coiling assembly and a wire part, a containing cavity is formed in the shell, and the shell comprises a vehicle charging section, an interface section and a line storage section. The main circuit board is installed in the shell, a power connection element is arranged in the cavity of the vehicle charging section, the power connection element is electrically connected with the main circuit board, and the power connection element protrudes out of the cavity of the vehicle charging section. The charging connector is arranged in the interface section, and the charging connector is electrically connected with the main circuit board; a charging port is formed in the shell wall of the interface section in a penetrating manner; and the charging connector is arranged at the charging port. The wire winding assembly is arranged in the wire storage section and comprises a charging wire, and the charging wire is electrically connected with the main circuit board; the charging wire is curled, a wire outlet is formed in the shell wall of the wire storage section, and a charging head of the charging wire penetrates out of the wire outlet. The wire part is arranged at a wire outlet of the wire storage section, and a charging head of the charging wire penetrates through the wire part. The vehicle-mounted charger provided by the utility model achieves the effect of diversified charging performance.

Description

Technical Field

[0001] This utility model relates to the field of vehicle accessories technology, specifically to a vehicle charger. Background Technology

[0002] A car charger is a charger that is typically powered by a car battery and is widely used for charging lithium batteries in various portable and handheld devices, such as mobile phones, PDAs, and GPS devices. Car chargers meet the practical requirements of lithium battery charging (constant voltage (CV), constant current (CC), and overvoltage protection (OVP)) while also being designed to withstand the harsh environment of car batteries (transient voltage spikes, system switching noise interference, EMI, etc.). Therefore, as an item used in vehicles, car chargers have become an indispensable accessory for mobile devices.

[0003] In the existing technology, car chargers only have a wiring port, such as a single USB interface, so their function is very limited and cannot meet the needs of multiple devices or multiple devices being used at the same time. Utility Model Content

[0004] The purpose of this utility model is to provide a vehicle charger that solves the problem of existing vehicle chargers having only one charging interface.

[0005] According to one embodiment of the present invention, a vehicle charger is disclosed, comprising:

[0006] The housing has an accommodating cavity inside, and the housing includes a vehicle charging section, an interface section, and a cable storage section;

[0007] The main circuit board is installed inside the housing, with part of the main circuit board located in the cavity of the car charger section and part located in the cavity of the interface section; a power connection element is provided in the cavity of the car charger section, the power connection element is electrically connected to the main circuit board, and the power connection element protrudes from the cavity of the car charger section;

[0008] A charging connector is disposed inside the interface section and is electrically connected to the main circuit board; a charging port is provided through the shell wall of the interface section, and the charging connector is disposed at the charging port.

[0009] A winding assembly is disposed inside the wire storage segment. The winding assembly includes a charging cable, which is electrically connected to the main circuit board. The charging cable is wound up, and the shell wall of the wire storage segment has an outlet, through which the charging head of the charging cable passes.

[0010] A lead wire section is provided at the outlet of the storage wire section, and the direction of the lead wire section is tangent to the coiled circle of the charging wire; the charging head of the charging wire passes through the lead wire section.

[0011] According to one embodiment of the present invention, the power receiving element includes a contact pin and a spring. One end of the spring is electrically connected to the main circuit board, and the other end is connected to the contact pin. The contact pin extends from the end of the car charger section.

[0012] According to one embodiment of the present invention, the power receiving element further includes a contact arm and a conductive spring, the conductive spring being electrically connected to the main circuit board, and the contact arm being disposed at the end of the conductive spring and extending beyond the side wall of the vehicle charging section.

[0013] According to one embodiment of the present invention, a card slot is provided on the inner wall of the interface segment, and the base plate of the main circuit board can be snapped into the card slot.

[0014] According to one embodiment of the present invention, the main circuit board includes two base plates, each of which is provided with a corresponding card slot.

[0015] According to one embodiment of the present invention, the insertion port of the card slot is chamfered.

[0016] According to one embodiment of the present invention, the vehicle charger further includes a secondary circuit board, which is installed in the storage cable section. The secondary circuit board is electrically connected to the main circuit board via a wire, and the charging cable is electrically connected to the secondary circuit board.

[0017] According to one embodiment of the present invention, the winding assembly further includes a housing, and the charging cable is wound inside the housing;

[0018] The secondary circuit board is installed inside the housing. The secondary circuit board includes a conductive plate and a component board. The conductive plate is provided with conductive contacts, which are electrically connected to the main circuit board. The component board is provided with an annular conductive ring, which slides in contact with the conductive contacts. The charging cable is electrically connected to the conductive ring of the component board.

[0019] According to one embodiment of the present invention, a positioning post is provided at the bottom of the outer shell of the winding assembly, and a positioning hole adapted to the positioning post is provided inside the wire storage segment.

[0020] According to one embodiment of the present invention, there are two charging connectors, and the two charging connectors are of different types.

[0021] Compared with the prior art, the vehicle charger of this utility model has the following advantages:

[0022] This invention achieves diverse charging performance by incorporating different charging components into a single vehicle charger. The charging connector can be used with either a user's own data cable or charging cable, while the built-in charging cable in the cable reel assembly allows for direct charging. Additionally, the vehicle charger includes a cable guide for easy extension and retraction of the charging cable. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the vehicle charger of this utility model;

[0024] Figure 2 This is a front view of the vehicle charger of this utility model;

[0025] Figure 3 This is an exploded view of the structure of the vehicle charger of this utility model;

[0026] Figure 4 This is a schematic diagram of the internal structure of the vehicle charger of this utility model;

[0027] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0028] Figure 6 This is a schematic diagram of the cable winding assembly of the vehicle charger of this utility model;

[0029] Figure 7 This is a front view of the cable winding assembly of the vehicle charger of this utility model;

[0030] Figure 8 for Figure 7 A cross-sectional view along line II;

[0031] Figure 9 for Figure 8 A magnified view of a section at point B.

[0032] In the diagram: 10. Car charger, 100. Housing, 110. Car charging section, 120. Interface section, 121. Card slot, 130. Cable storage section, 131. Positioning hole, 200. Main circuit board, 300. Power connection element, 310. Contact pin, 320. Spring, 330. Contact arm, 340. Conductive spring, 400. Charging connector, 500. Cable winding assembly, 510. Housing, 520. Positioning post, 600. Conductor section, 700. Sub-circuit board, 710. Conductive plate, 711. Conductive contact, 720. Component board, 721. Conductive coil.

[0033] The implementation and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0036] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a 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.

[0037] To further understand the content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0038] This utility model discloses a vehicle charger, including a housing, a main circuit board, a charging connector, a cable winding assembly, and a lead wire portion. The housing has an accommodating cavity; please refer to [reference 1]. Figure 2 The housing 100 includes a vehicle charging section 110, an interface section 120, and a cable storage section 130. The vehicle charging section 110 is above the interface section 120, and the interface section 120 is above the cable storage section 130.

[0039] See also Figure 2 and Figure 3The main circuit board 200 is installed within the housing 100, with a portion of the main circuit board 200 located within the cavity of the car charger section 110 and a portion located within the cavity of the interface section 120. A power connection element 300 is disposed within the cavity of the car charger section 110, and the power connection element 300 is electrically connected to the main circuit board 200, protruding from the cavity of the car charger section 110. The power connection element 300 is used to electrically connect to the vehicle's power supply when the car charger 10 is plugged into the car's cigarette lighter socket.

[0040] See also Figure 1 A charging connector 400 is disposed inside the interface segment 120 and is electrically connected to the main circuit board 200. A charging port is provided through the shell wall of the interface segment 120, and the charging connector 400 is disposed at the charging port. The charging connector 400 is used for the insertion of a user charging cable. Preferably, multiple charging connectors 400 can be provided, and the multiple charging connectors 400 can be the same or different. For example, two charging connectors 400 can be provided, and the two charging connectors 400 have different connector types, such as one USB interface and the other Type-C interface.

[0041] See also Figure 3 A cable winding assembly 500 is disposed inside the cable storage segment 130. The cable winding assembly 500 includes a charging cable (not shown in the figure), which is electrically connected to the main circuit board 200. The charging cable is coiled up, and the casing wall of the cable storage segment 130 has an outlet, through which the charging head of the charging cable protrudes. The charging cable is coiled and wound, with the charging head extending from the outlet, allowing for retraction and rewinding for user convenience. Preferably, when the user pulls out the charging cable and releases it, the charging cable automatically locks in place; when the user pulls the charging cable again and releases it, the charging cable automatically retracts.

[0042] See also Figure 1 A lead wire portion 600 is disposed at the outlet of the wire storage section 130, and the direction of the lead wire portion 600 is tangent to the coiled circle of the charging cable; the charging head of the charging cable passes through the lead wire portion 600. The lead wire portion 600 fixes the routing direction of the charging cable, and this direction is tangent to the coiled circle of the charging cable, which facilitates the pulling out and retraction of the charging cable.

[0043] In practical use, first insert the car charger 10 into the car's cigarette lighter socket. The car's power supply is electrically connected to the connecting element 300, thus conducting electricity to the main circuit board 200. At this time, the user can draw power through the charging interface, so the user can insert the data cable or charging cable into the charging interface to draw power. At the same time, since the charging cable of the cable reel assembly 500 is electrically connected to the main circuit board 200, the user can also pull out the charging cable to draw power directly.

[0044] This invention achieves diverse charging performance by incorporating different charging elements on a single vehicle charger 10. The charging connector 400 can be used with either a user's own data cable or charging cable, while the cable reel assembly 500 includes a built-in charging cable for direct charging. Additionally, the vehicle charger 10 includes a lead wire portion 600 for easy extension and retraction of the charging cable.

[0045] According to one embodiment of this utility model, please refer to Figure 3 The power-connecting element 300 includes a contact pin 310 and a spring 320. One end of the spring 320 is electrically connected to the main circuit board 200, and the other end is connected to the contact pin 310. The contact pin 310 extends from the end of the car charger section 110. It is understood that the contact pin 310 extends out of the car charger section 110 to abut against the conductive part of the cigarette lighter socket. The spring 320 has conductive properties, and its elasticity prevents the power-connecting element 300 from being disconnected.

[0046] Please continue reading. Figure 3 The power receiving element 300 further includes a contact arm 330 and a conductive spring 340. The conductive spring 340 is electrically connected to the main circuit board 200. The contact arm 330 is disposed at the end of the conductive spring 340 and extends beyond the side wall of the vehicle charging section 110. The conductive spring 340 is elastic, so when the contact arm 330 abuts against the conductive part of the inner wall of the cigarette lighter interface, it presses against the conductive spring 340, so that the entire vehicle charger 10 can be fixed inside the cigarette lighter interface under the pressure.

[0047] According to one embodiment of this utility model, please refer to Figure 4 and Figure 5 The inner wall of the interface segment 120 is provided with a retaining plate groove 121, and the bottom plate of the main circuit board 200 can be snapped into the retaining plate groove 121. It can be understood that the retaining plate groove 121 is provided to facilitate the installation of the main circuit board 200, and to limit the main circuit board 200 to prevent damage caused by bumps during use.

[0048] According to one embodiment of this utility model, please refer to Figure 4 and Figure 5 The main circuit board 200 includes two base plates, each of which is provided with a corresponding retaining plate slot 121. It can be understood that the two retaining plate slots 121 are provided to secure the main circuit board 200, thereby enhancing the installation and fixing strength of the main circuit board 200.

[0049] According to one embodiment of this utility model, please refer to Figure 4 and Figure 5To facilitate the insertion of the base plate of the main circuit board 200, it is preferable that the insertion port of the card slot 121 is chamfered.

[0050] According to one embodiment of this utility model, please refer to Figures 6 to 9 The vehicle charger 10 also includes a secondary circuit board 700, which is installed within the cable storage section 130. The secondary circuit board 700 is electrically connected to the main circuit board 200 via wires, and the charging cable is electrically connected to the secondary circuit board 700. It is understood that the charging cable needs to rotate during the extension and retraction process. If a wire were directly used to connect the charging cable and the main circuit board 200, the wire would be damaged or detached during rotation. Therefore, the secondary circuit board 700 is needed as a carrier for the charging cable, allowing the secondary circuit board 700 and the charging cable to rotate together while simultaneously being energized.

[0051] Specifically, the cable winding assembly 500 further includes a housing 510, within which the charging cable is coiled. The sub-circuit board 700 is installed within the housing 510 and includes a conductive plate 710 and a component board 720. The conductive plate 710 has conductive contacts 711, which are electrically connected to the main circuit board 200 (e.g., via wires). The component board 720 has an annular conductive ring 721, which slides in contact with the conductive contacts 711. The charging cable is electrically connected to the conductive ring 721 of the component board 720. This structure ensures the charging cable's retractable winding function while simultaneously achieving an electrical connection between the main circuit board 200 and the charging cable. Specifically, the charging cable is electrically connected to the component board 720. When the charging cable is extended, retracted, or wound up, it will cause the component board 720 to rotate. Since the component board 720 and the conductive plate 710 are in sliding contact through contacts, it is ensured that the rotation of the charging cable will not affect the electrical conduction between the component board 720 and the conductive plate 710.

[0052] For details, please refer to this application. Figure 9 The conductive contacts 711 are arranged on both sides, with a total of 5 on each side and each pair corresponding to the other. Correspondingly, there are 5 annular conductive rings 721, with each ring 721 simultaneously contacting two corresponding conductive contacts 711.

[0053] According to one embodiment of this utility model, please refer to Figure 4 and Figure 7 The cable winding assembly 500 has a positioning post 520 at the bottom of its outer casing 510, and the cable storage segment 130 has a positioning hole 131 that matches the positioning post 520 inside. It is understood that matching the positioning post 520 and the positioning hole 131 facilitates the installation and fixed positioning of the cable winding assembly 500.

[0054] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vehicle charger, characterized in that, include: The housing has an accommodating cavity inside, and the housing includes a vehicle charging section, an interface section, and a cable storage section; The main circuit board is installed inside the housing, with part of the main circuit board located in the cavity of the car charger section and part located in the cavity of the interface section; a power connection element is provided in the cavity of the car charger section, the power connection element is electrically connected to the main circuit board, and the power connection element protrudes from the cavity of the car charger section; A charging connector is disposed inside the interface section and is electrically connected to the main circuit board; a charging port is provided through the shell wall of the interface section, and the charging connector is disposed at the charging port. A winding assembly is disposed inside the wire storage segment. The winding assembly includes a charging cable, which is electrically connected to the main circuit board. The charging cable is wound up, and the shell wall of the wire storage segment has an outlet, through which the charging head of the charging cable passes. A lead wire section is provided at the outlet of the storage wire section, and the direction of the lead wire section is tangent to the coiled circle of the charging wire; the charging head of the charging wire passes through the lead wire section.

2. The vehicle charger according to claim 1, characterized in that, The power-connecting element includes a contact pin and a spring. One end of the spring is electrically connected to the main circuit board, and the other end is connected to the contact pin. The contact pin extends from the end of the vehicle charger section.

3. The vehicle charger according to claim 1, characterized in that, The power connection element also includes a contact arm and a conductive spring. The conductive spring is electrically connected to the main circuit board, and the contact arm is disposed at the end of the conductive spring and extends out of the side wall of the vehicle charging section.

4. The vehicle charger according to claim 1, characterized in that, The inner wall of the interface segment is provided with a card slot, and the base plate of the main circuit board can be snapped into the card slot.

5. The vehicle charger according to claim 1, characterized in that, The main circuit board includes two base plates, each of which is provided with a corresponding card slot.

6. The vehicle charger according to claim 5, characterized in that, The insertion port of the card slot is chamfered.

7. The vehicle charger according to claim 1, characterized in that, The vehicle charger also includes a secondary circuit board, which is installed in the storage cable section. The secondary circuit board is electrically connected to the main circuit board via wires, and the charging cable is electrically connected to the secondary circuit board.

8. The vehicle charger according to claim 7, characterized in that, The cable winding assembly also includes a housing, in which the charging cable is wound; The secondary circuit board is installed inside the housing. The secondary circuit board includes a conductive plate and a component board. The conductive plate is provided with conductive contacts, which are electrically connected to the main circuit board. The component board is provided with an annular conductive ring, which slides in contact with the conductive contacts. The charging cable is electrically connected to the conductive ring of the component board.

9. The vehicle charger according to claim 1, characterized in that, The bottom of the housing of the winding assembly is provided with a positioning post, and the interior of the wire storage segment is provided with a positioning hole that is adapted to the positioning post.

10. The vehicle charger according to claim 1, characterized in that, There are two charging connectors, and the two charging connectors are of different types.

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