Self-charging adapter

Abstract

The utility model relates to the technical field of adapters, and discloses a self-charging adapter, which comprises a shell, a first power terminal, a second power terminal, a circuit board assembly and a battery assembly, and is characterized in that the first power terminal is conductively connected with the second power terminal through an adapter bar; the circuit board assembly comprises a charging circuit board and a low-voltage control board which are oppositely arranged in a spaced mode, the switching bar is located between the charging circuit board and the low-voltage control board, a voltage reduction module is integrated on the charging circuit board, the input end of the voltage reduction module is electrically connected with the switching bar, and the output end of the voltage reduction module is electrically connected with the switching bar. The output end of the voltage reduction module is in conductive connection with a charging interface of the battery assembly, and a power supply interface of the battery assembly is in conductive connection with the low-voltage control panel and supplies power to the low-voltage control panel. According to the utility model, the charging circuit board can charge the battery assembly through the voltage reduction module when the switching bar is electrified, thereby preventing the battery assembly from being insufficient in electric quantity, and ensuring normal realization of predetermined functions.

Description

Technical Field

[0001] The utility model relates to the technical field of adapters, and more specifically, to a self-charging adapter. Background Art

[0002] Some existing charging adapters usually have batteries, control modules, and action execution modules installed in the shell to achieve certain protective functions. For example, batteries, main control boards, temperature sensors, and relays are installed in the shell. The relays can control the connectivity of power terminals or signal terminals. When the temperature is too high during charging, the main control board sends a disconnect signal to the relay. After receiving the disconnect signal, the relay uses the power of the battery to perform a disconnect action, thereby blocking the charging process and achieving the purpose of high temperature protection.

[0003] However, the battery of the above adapter can only be charged separately by setting a charging port, or the battery is set to be detachable and replaceable, and cannot be charged by itself during use. In actual use, it is easy to cause the intended function to fail due to insufficient battery power, thereby causing safety hazards. Utility Model Content

[0004] The utility model provides a self-charging adapter to solve the problem in the prior art that a predetermined function may fail due to insufficient battery power.

[0005] The utility model provides a self-charging adapter, comprising a shell, a first interface and a second interface are respectively arranged on both sides of the shell, and a circuit board assembly and a battery assembly are arranged in the shell, a first power terminal arranged in the first interface and a second power terminal arranged in the second interface are respectively conductively connected through an adapter bar, a first signal terminal arranged in the first interface and a second signal terminal arranged in the second interface are respectively conductively connected through a circuit board assembly, the circuit board assembly comprises a charging circuit board and a low-voltage control board arranged opposite to each other at intervals, the adapter bar is located between the charging circuit board and the low-voltage control board, a step-down module is integrated on the charging circuit board, an input end of the step-down module is conductively connected to the adapter bar, an output end of the step-down module is conductively connected to the charging interface of the battery assembly, and a power supply interface of the battery assembly is conductively connected to the low-voltage control board and supplies power.

[0006] Optionally, the step-down module is a direct current step-down module.

[0007] Optionally, a power terminal is provided on the adapter bar, an adapter ring conductively connected to the step-down module is provided on the charging circuit board, and one end of the power terminal is inserted into the adapter ring and conductively contacted with the adapter ring.

[0008] Optionally, a plurality of spring sheets are circumferentially distributed on the inner wall of the adapter ring, and one end of the power terminal is inserted into the adapter ring and abuts against the plurality of spring sheets to achieve conductive contact between the power terminal and the adapter ring.

[0009] Optionally, an insulating shell is provided on the outer periphery of the adapter bar, the first power terminal passes through the insulating shell and is connected to one end of the adapter bar, and the second power terminal passes through the insulating shell and is connected to the other end of the adapter bar.

[0010] Optionally, avoidance holes are respectively provided on the charging circuit board and the low-voltage control board, and the first power terminal and the second power terminal are connected to the adapter bar through the avoidance holes.

[0011] Optionally, the first signal terminal is connected to the charging circuit board, the second signal terminal is connected to the low-voltage control board, and the charging circuit board and the low-voltage control board are conductively connected via a transfer terminal, thereby connecting the first signal terminal and the second signal terminal.

[0012] Optionally, the adapter terminal includes a male terminal and a female terminal which are plugged into each other, and the insulating shell is provided with a protective sleeve which avoids the adapter row. The male terminal and the female terminal are axially installed in the protective sleeve from both ends of the protective sleeve and are plugged into each other.

[0013] Optionally, the first signal terminal and the second signal terminal are respectively connected to the charging circuit board and the low-voltage control board by welding, and the male terminal and the female terminal are also respectively connected to the charging circuit board and the low-voltage control board by welding.

[0014] The utility model has the following beneficial effects

[0015] 1. The charging circuit board provided in the utility model can charge the battery assembly through the step-down module when the adapter bar is powered, thereby avoiding insufficient power of the battery assembly and ensuring that the predetermined functions can be realized normally.

[0016] 2. The charging circuit board and the low-voltage control board of the utility model are spaced apart to prevent adverse conditions such as voltage breakdown between the high-voltage charging circuit board and the low-voltage low-voltage control board, thereby ensuring the normal operation of each structure.

[0017] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0019] Figure 1 This is a schematic diagram of the exploded structure of the self-charging adapter;

[0020] Figure 2 It is a cross-sectional schematic diagram of the power terminal, the adapter bar and adapter ring, and the charging circuit board;

[0021] Figure 3 It is a schematic diagram of the conductive contact between the power terminal and the adapter ring;

[0022] Figure 4 It is a cross-sectional schematic diagram of the insulating shell, the protective sleeve, the transfer terminal, the charging circuit board, and the low-voltage control board;

[0023] Figure 5 It is a schematic diagram of the assembly status of the insulating shell, the power terminal and the charging circuit board;

[0024] Figure 6 This is the functional block diagram of the self-charging adapter.

[0025] The following are marked in the figure:

[0026] 1. Housing; 11. First interface; 12. Second interface;

[0027] 2. First power terminal; 21. Second power terminal;

[0028] 3. Adapter bar; 31. Insulating shell; 311. First shell; 312. Second shell; 313. Buckle structure; 314. Mounting groove; 315. Protective sleeve; 32. Power terminal;

[0029] 4. a first signal terminal; 41. a second signal terminal;

[0030] 5. Charging circuit board; 51. Low voltage control board; 52. Adapter ring; 521. Shrapnel; 53. Avoidance hole;

[0031] 6. Battery components;

[0032] 7. Transfer terminal; 71. Male terminal; 72. Female terminal. DETAILED DESCRIPTION

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0036] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0037] like Figure 1-5 As shown, a self-charging adapter of the present embodiment includes a shell 1, a first interface 11 and a second interface 12 are respectively arranged on both sides of the shell 1, and a circuit board assembly and a battery assembly 6 are arranged in the shell 1, a first power terminal 2 arranged in the first interface 11 and a second power terminal 21 arranged in the second interface 12 are respectively conductively connected through a transfer bar 3, and a first signal terminal 4 arranged in the first interface 11 and a second signal terminal 41 arranged in the second interface 12 are respectively conductively connected through a circuit board assembly.

[0038] Two adapter bars 3, first power terminals 2 and second power terminals 21 are each provided to meet the needs of positive and negative poles of DC charging, and multiple groups of first signal terminals 4 and second signal terminals 41 are correspondingly provided to form a signal terminal combination for transmitting different signals.

[0039] The circuit board assembly includes a charging circuit board 5 and a low-voltage control board 51 that are arranged relative to each other at an interval. The adapter bar 3 is located between the charging circuit board 5 and the low-voltage control board 51. A step-down module is integrated on the charging circuit board 5. The input end of the step-down module is conductively connected to the adapter bar 3, and the output end of the step-down module is conductively connected to the charging interface of the battery assembly 6. The power supply interface of the battery assembly 6 is conductively connected to the low-voltage control board 51 and supplies power.

[0040] The battery assembly 6 is a component including a storage battery, a charging interface, a discharging interface and a circuit device. This technology is conventional prior art and will not be described in detail.

[0041] Compared with the prior art in which the battery is prone to failure of the intended function due to insufficient power, the charging circuit board 5 provided in the present embodiment can charge the battery assembly 6 through the step-down module when the adapter bar 3 is energized, that is, the battery assembly 6 can be charged during normal charging of the vehicle to avoid insufficient power of the battery assembly 6, thereby ensuring that the preset functions of the low-voltage control board 51 and other corresponding preset components such as relays can be normally implemented; in addition, the interval setting between the charging circuit board 5 and the low-voltage control board 51 can prevent adverse conditions such as voltage breakdown from occurring between the high-voltage charging circuit board 5 and the low-voltage low-voltage control board 51, thereby ensuring the normal operation of each structure.

[0042] Furthermore, in order to meet the requirements of DC charging scenarios, the step-down module in this embodiment is a DC step-down module. The DC step-down module can be composed of existing step-down power supply technologies such as a flyback switching power supply. It belongs to the existing technology or can be easily implemented by technicians in this field through conventional technology, so it will not be described in detail.

[0043] Furthermore, in order to facilitate the conductive connection between the step-down module and the adapter bar 3 and ensure the reliability of the conductive connection and the convenience of assembly, as Figure 2 and Figure 3 As shown, in this embodiment, the adapter bar 3 is provided with a power terminal 32, the charging circuit board 5 is provided with an adapter ring 52 conductively connected to the step-down module, and one end of the power terminal 32 is inserted into the adapter ring 52 and conductively contacted with the adapter ring 52. In this embodiment, the adapter bars 3 of the positive and negative electrodes are both provided with power terminals 32, and each power terminal 32 is conductively connected to the step-down module through the corresponding adapter ring 52 to form a current loop.

[0044] Furthermore, if Figure 2 and Figure 3 As shown, in order to ensure the conductive reliability of the power terminal 32 and the adapter ring 52, in this embodiment, a plurality of spring clips 521 are circumferentially distributed on the inner wall of the adapter ring 52. The specific number of the spring clips 521 can be flexibly set. In this embodiment, 4 evenly distributed spring clips 521 are specifically selected to be set. One end of the power terminal 32 is inserted into the adapter ring 52 and abuts against the plurality of spring clips 521 to achieve conductive contact between the power terminal 32 and the adapter ring 52.

[0045] Furthermore, if Figure 4 and Figure 5 As shown, in order to ensure that the adapter bar 3 is in an electrically insulating protection state to avoid adverse effects on nearby components such as the low-voltage control board 51, in this embodiment, an insulating shell 31 is provided on the outer periphery of the adapter bar 3, the first power terminal 2 passes through the insulating shell 31 to be connected to one end of the adapter bar 3, and the second power terminal 21 passes through the insulating shell 31 to be connected to the other end of the adapter bar 3.

[0046] like Figure 5As shown, in this embodiment, in order to facilitate assembly, the insulating shell 31 is a split structure, including a first shell 311 and a second shell 312. The side wall of the first shell 311 is provided with a mounting groove 314. The adapter row 3 is installed in the mounting groove 314 from the notch of the mounting groove 314. The second shell 312 covers the notch of the mounting groove 314 and is fixedly connected to the first shell 311. The fixed connection is specifically connected by a snap-on structure 313. In other embodiments, it can also be adhesive, etc. In addition, considering avoiding the first power terminal 2 or the second power terminal 21 and the power terminal 32, and facilitating the assembly of the insulating shell 31, the second shell 312 does not completely cover the mounting groove 314, and a gap is left at the first power terminal 2 or the second power terminal 21 and the power terminal 32.

[0047] Furthermore, in order to make the structure more compact and take into account the spatial relationship, such as Figure 2 and Figure 5 As shown, in this embodiment, avoidance holes 53 are respectively provided on the charging circuit board 5 and the low-voltage control board 51, and the first power terminal 2 and the second power terminal 21 pass through the corresponding avoidance holes 53 to be connected to the adapter bar 3, and the first power terminal 2 and the second power terminal 21 do not contact the inner wall of the corresponding avoidance hole 53.

[0048] Furthermore, in order to make the structure more compact and easy to assemble, as Figure 1 and Figure 4 As shown, in this embodiment, the first signal terminal 4 is connected to the charging circuit board 5, the second signal terminal 41 is connected to the low-voltage control board 51, and the charging circuit board 5 and the low-voltage control board 51 are conductively connected through the adapter terminal 7, thereby connecting the first signal terminal 4 and the second signal terminal 41.

[0049] Specifically, the adapter terminal 7 includes a male terminal 71 and a female terminal 72 that are plugged into each other, and the specific number of PIN pins of the male terminal 71 and the female terminal 72 matches the number of signal terminal groups and the number of other circuits that need to be transferred. In this embodiment, in order to ensure that the male terminal 71 and the female terminal 72 are smoothly plugged into each other and provide isolation protection, a protective sleeve 315 that avoids the adapter row 3 is provided on the insulating shell 31, and the male terminal 71 and the female terminal 72 are axially installed in the protective sleeve 315 from both ends of the protective sleeve 315 and plugged into each other. The protective sleeve 315 in this embodiment is integrally injection molded on the first shell 311.

[0050] In addition, to ensure the reliability of the connection, such as Figure 1 and Figure 4As shown, in this embodiment, the first signal terminal 4 and the second signal terminal 41 are respectively welded to the charging circuit board 5 and the low-voltage control board 51, and the male terminal 71 and the female terminal 72 are also respectively welded to the charging circuit board 5 and the low-voltage control board 51. In other embodiments, the above-mentioned adapter ring 52 can also be referred to to achieve the first signal terminal 4 and the second signal terminal 41 are respectively electrically connected to the charging circuit board 5 and the low-voltage control board 51, and the male terminal 71 and the female terminal 72 are respectively electrically connected to the charging circuit board 5 and the low-voltage control board 51.

[0051] The principle block diagram of this embodiment is as follows Figure 6 As shown, the dotted line represents the charging loop.

[0052] In specific use, after the self-charging adapter of the present embodiment is connected to the charging gun and the charging base and charging is started, the adapter bar 3 is in a charged state, and the step-down module can start to draw power from the adapter bar 3 and charge the battery assembly 6, so that the battery assembly 6 can obtain power replenishment when the vehicle is charged normally, that is, it can charge itself during use, preventing the predetermined function from failing due to insufficient power during use, and the safety of use is well guaranteed.

[0053] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A self-charging adapter, comprising a shell, a first interface and a second interface are respectively arranged on both sides of the shell, and a circuit board assembly and a battery assembly are arranged in the shell, a first power terminal arranged in the first interface and a second power terminal arranged in the second interface are respectively conductively connected through a transfer bar, and a first signal terminal arranged in the first interface and a second signal terminal arranged in the second interface are respectively conductively connected through a circuit board assembly, characterized in that: The circuit board assembly includes a charging circuit board and a low-voltage control board that are arranged relative to each other at an interval, the adapter bar is located between the charging circuit board and the low-voltage control board, a step-down module is integrated on the charging circuit board, the input end of the step-down module is conductively connected to the adapter bar, the output end of the step-down module is conductively connected to the charging interface of the battery assembly, and the power supply interface of the battery assembly is conductively connected to the low-voltage control board and supplies power.

2. A self-charging adapter according to claim 1, characterized in that: The step-down module is a direct current step-down module.

3. A self-charging adapter according to claim 1, characterized in that: The adapter bar is provided with a power terminal, the charging circuit board is provided with an adapter ring conductively connected to the step-down module, and one end of the power terminal is inserted into the adapter ring and conductively contacted with the adapter ring.

4. A self-charging adapter according to claim 3, characterized in that: A plurality of spring sheets are circumferentially distributed on the inner wall of the adapter ring, and one end of the power terminal is inserted into the adapter ring and abuts against the plurality of spring sheets to achieve conductive contact between the power terminal and the adapter ring.

5. A self-charging adapter according to claim 1, characterized in that: An insulating shell is provided on the outer periphery of the adapter bar, the first power terminal passes through the insulating shell and is connected to one end of the adapter bar, and the second power terminal passes through the insulating shell and is connected to the other end of the adapter bar.

6. A self-charging adapter according to claim 5, characterized in that: Avoidance holes are respectively arranged on the charging circuit board and the low-voltage control board, and the first power terminal and the second power terminal are connected to the adapter bar through the avoidance holes.

7. A self-charging adapter according to claim 5, characterized in that: The first signal terminal is connected to the charging circuit board, the second signal terminal is connected to the low-voltage control board, and the charging circuit board and the low-voltage control board are conductively connected via a transfer terminal, thereby connecting the first signal terminal and the second signal terminal.

8. A self-charging adapter according to claim 7, characterized in that: The adapter terminal includes a male terminal and a female terminal which are plugged into each other. The insulating shell is provided with a protective sleeve which avoids the adapter row. The male terminal and the female terminal are axially installed in the protective sleeve from both ends of the protective sleeve and are plugged into each other.

9. A self-charging adapter according to claim 8, characterized in that: The first signal terminal and the second signal terminal are respectively connected to the charging circuit board and the low-voltage control board by welding, and the male terminal and the female terminal are also respectively connected to the charging circuit board and the low-voltage control board by welding.

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