A power supply plug connector with a circuit board and an integrated charger

Abstract

The application provides a power supply plug connector with a circuit board and an integrated charger, and relates to the technical field of charging equipment, which comprises a circuit board and a power supply plug, the circuit board is installed in the power supply plug, the plug on the power supply plug is connected with the input end of the circuit board through a wire or a copper bar, and the output wire on the power supply plug is connected with the output end of the circuit board. The power supply plug integrates the part of the function of the control box on the cable of the charging product, reduces the volume of the charging product, is convenient to store, and avoids the temperature rise abnormal fault caused by the empty control box on the cable.

Description

Technical Field

[0001] This invention relates to the field of charging equipment technology, specifically to a power plug connector with a circuit board and an integrated charger. Background Technology

[0002] Existing overseas charging products use a traditional structure: charging gun + cable control box + power plug; such as Figure 1 As shown, the product is divided into three modules; the power plug is mainly used to transmit current throughout the product.

[0003] Existing overseas charging products are bulky and inconvenient to store. Furthermore, during use, the control box on the cable is suspended in the air, pulling on the power plug, which leads to poor contact between the power plug and the socket and causes the temperature to rise. Existing power plugs have a simple overall structure and function, generally only having temperature detection capabilities and no other protection functions. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a power plug connector with a circuit board and an integrated charger. The power plug integrates some functions of the control box on the cable, reducing the size of the charging product and preventing overheating failures caused by the control box on the cable being pulled loosely.

[0005] To achieve the above technical objectives, the technical solution adopted is: a power plug connector with a circuit board, including a circuit board and a power plug, the circuit board is installed inside the power plug, the prongs on the power plug are connected to the input end of the circuit board through wires or copper busbars, and the output wires on the power plug are connected to the output end of the circuit board.

[0006] The benefits are: integrating part of the circuit board of the on-cable control box into the power plug eliminates the need for the on-cable control box, reduces the overall weight and size of the charging product, simplifies the form of the charging product, makes it more convenient to operate and use, and further optimizes costs.

[0007] The process of connecting the insert to the input terminal of the circuit board via wires or copper busbars adopts a soldering process.

[0008] The benefits are: welding reduces the number of transition points, prevents damage from too many transition points, and improves product reliability.

[0009] A power plug connector with a circuit board also includes a fixing frame, in which the circuit board is fixedly installed and the fixing frame is fixed inside the power plug.

[0010] The beneficial effects are: the fixed frame protects the circuit board, preventing damage to the circuit board caused by excessive pressure during the injection molding of the plug, and preventing the plug from being too thick, which would result in a poor appearance.

[0011] The outer shell of the power plug is injection molded using a one-piece molding process.

[0012] The benefits are: the injection-molded shell is formed quickly, has a high yield, and does not require assembly.

[0013] The circuit board is fixedly installed in the frame using screws or clips.

[0014] The beneficial effects are: the circuit board is fixed in the fixed frame, the circuit board no longer shakes, and it is prevented from being damaged by bumps.

[0015] The shape of the mounting frame matches the shape of the inner cavity of the power plug housing.

[0016] The beneficial effects are: by using the shape of the fixed frame as an internal tooling, the outer shell of the power plug can be directly injection molded, saving tools and materials and improving production efficiency.

[0017] The fixed frame has an opening for connecting the output wire.

[0018] The beneficial effects are: by rationally designing the angle of the output wire through the opening, the output wire is prevented from bending, and it also has a certain limiting effect to prevent the output wire from shaking, so that the wire can be output in a straight line.

[0019] The circuit board integrates one or more of the following: temperature detection element, leakage protection element, and relay control element.

[0020] The beneficial effect is that multiple functional components can be integrated on the circuit board, and the circuit board is no longer limited by the structure that can only integrate one function.

[0021] An integrated charger includes a charging gun with an integrated charging circuit board and a power supply plug connector, wherein the output end of the output wire is connected to the input end of the circuit board inside the charging gun.

[0022] The benefits are: eliminating the cable control box in the existing technology and directly connecting the output wire to the charging gun reduces the overall size of the charging product and makes it less prone to damage. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of a charging product based on existing technology; Figure 2 This is a schematic diagram of the integrated charger of the present invention; Figure 3 This is an exploded view of the power supply plug connector with circuit board of the present invention; Figure 4 This is a schematic diagram of the circuit board structure of the present invention; In the diagram: 1. Charging gun, 2. Power plug connector, 21. Circuit board, 22. Power plug, 23. Fixing frame, 221. Plug, 222. Housing, 223. Output wire, 231. First fixing frame, 232. Second fixing frame, 222-1. First molding body, 222-2. Second molding body, 222-2, 23-1. Opening. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0026] The structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0027] The orientations or positional relationships indicated by terms such as "up," "down," "left," "right," "middle," "longitudinal," "lateral," "horizontal," "inner," "outer," "radial," and "circumferential" in this specification are based on the orientations or positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0028] like Figure 3As shown, a power plug connector with a circuit board includes a circuit board 21 and a power plug 22. The circuit board 21 is installed inside the power plug 22, that is, the power plug 22 is installed inside the housing of a conventional power plug. The prongs 221 on the power plug 22 are connected to the input terminal of the circuit board 21 via wires or copper busbars. The prongs 221 are used as contacts or pins for mating connections with other sockets. The output wires 223 on the power plug 22 are connected to the output terminal of the circuit board 21. The output wires 223 extend into the interior of the power plug 22 and connect to the circuit board 21. The outer side of the output wires 223 is wrapped with an insulating layer, which can be achieved through injection molding.

[0029] The connector 221 is connected to the input terminal of the circuit board 21 via wires or copper busbars using a soldering process. This soldering connection reduces the number of connection points and improves product reliability compared to the existing power plug connection method that uses crimped terminals and screws to tighten the circuit board.

[0030] A power plug connector with a circuit board further includes a fixing frame 23, in which the circuit board 21 is fixedly installed, securing the fixing frame 23 inside the power plug 22. If the outer shell of the power plug 22 is assembled, the fixing frame 23 can be fixed inside the shell by screws or clips, or it can be directly inserted to complete the fixation by matching the shape of the fixing frame 23 to the inner cavity shape of the outer shell 222 of the power plug 22. If the outer shell 222 of the power plug 22 is injection molded using a one-piece molding process, the fixing frame 23 is directly fixed inside the shell by injection molding. Figure 3 As shown, the injection-molded shell 222 consists of a first molding compound 222-1 on the left and a second molding compound 222-2 on the right.

[0031] The fixing frame 23 includes two parts: a first fixing frame 231 and a second fixing frame 232. The first fixing frame 231 is provided with a socket for inserting the insert 221, which can determine the installation angle of the insert 221. The second fixing frame 232 is used to install the circuit board 21.

[0032] The circuit board 21 is fixedly installed in the fixed frame 23 by screws or clips to prevent the circuit board 21 from shaking.

[0033] The outer shape of the fixing frame 23 matches the inner shape of the housing 222 of the power plug 22. This matching shape ensures that the fixing frame 23 acts as an internal tooling to achieve the injection molding of the housing 222.

[0034] The fixed frame 23 has an opening 23-1 for the input wire 223 to enter. The position of the opening 23-1 determines the angle at which the input wire enters the fixed frame 23. The optimal solution is that the position of the opening 23-1, the position of the output wire 223 extending out of the housing, and the connection point of the output wire 223 and the circuit board 21 are on a straight line.

[0035] like Figure 4 As shown, circuit board 21 integrates multiple functional devices according to the required functions. Circuit board 21 has an input terminal 211 and an output terminal 213 at its two ends, and a circuit board component 212 in the middle, including one or more of a temperature sensing element, a leakage protection element, and a relay control element. Circuit board 21 has circuitry for connecting to the circuit board component 212, the input terminal 211, and the output terminal 213.

[0036] like Figure 2 As shown, a circuit board with protection functions and a traditional power plug are integrated together, thereby upgrading a traditional charging product with an on-cable control box to an integrated charger. Specifically, the power plug integrates some of the on-cable control box functions, and the charging gun integrates some of the on-cable control box functions. This ultimately achieves a complete upgrade of the charging product. The specific connection structure is as follows: An integrated charger includes a charging gun 1 with an integrated charging circuit board and the aforementioned power plug connector 2. The output end of the output wire 223 is connected to the input end of the circuit board inside the charging gun 1. The structure of the charging gun 1 with the integrated charging circuit board is similar to that of the power plug connector 2. The output end of the input wire 223 is connected to the input end of the circuit board, and the output end of the power supply circuit is connected to the charging plug of the charging gun 1.

[0037] The above are merely preferred embodiments of the present invention and are not intended to limit or restrict the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection declared by the present invention.

Claims

1. A power supply plug connector with a circuit board, characterized in that: Includes a circuit board (21) and a power plug (22). The circuit board (21) is installed inside the power plug (22). The plug (221) on the power plug (22) is connected to the input terminal of the circuit board (21) through wires or copper busbars. The output wire (223) on the power plug (22) is connected to the output terminal of the circuit board (21).

2. The power plug connector with circuit board as described in claim 1, characterized in that: The process of connecting the insert (221) to the input terminal of the circuit board (21) via wires or copper busbars is achieved by soldering.

3. The power plug connector with circuit board as described in claim 1, characterized in that: It also includes a fixing frame (23), the circuit board (21) is fixedly installed in the fixing frame (23), and the fixing frame (23) is fixed inside the power supply plug (22).

4. A power supply plug connector with a circuit board as described in claim 1 or 3, characterized in that: The outer shell (222) of the power plug (22) is injection molded by an integral molding process.

5. A power supply plug connector with a circuit board as described in claim 3, characterized in that: The circuit board (21) is fixedly installed in the fixed frame (23) by screws or clips.

6. A power supply plug connector with a circuit board as described in claim 3, characterized in that: The shape of the fixing frame (23) matches the shape of the inner cavity of the outer shell (222) of the power plug (22).

7. A power supply plug connector with a circuit board as described in claim 3, characterized in that: The fixed frame (23) has an opening (23-1) for the connection of the output wire (223).

8. A power supply plug connector with a circuit board as described in claim 1, characterized in that: The circuit board (21) integrates one or more of the following: temperature detection element, leakage protection element, and relay control element.

9. An integrated charger, characterized in that: The device includes a charging gun (1) with an integrated charging circuit board and a power plug connector (2) as described in any one of claims 1-8, wherein the output end of the output wire (223) is connected to the input end of the circuit board inside the charging gun (1).

Images