Grounding structure of charge pal circuit board based on metal shell

Abstract

The utility model provides a grounding structure of a charge pal circuit board based on a metal shell, which comprises the metal shell, a circuit board support arranged in the metal shell, a circuit board mounted on the circuit board support and contacted with the metal shell, and a battery assembly arranged on the circuit board support and contacted with the metal shell. The battery assembly is installed on the circuit board support and located on one side of the circuit board. Based on the grounding structure, the shell of the power bank is set to be the metal shell, and then the circuit board is in contact with the metal shell, so that the grounding function of the circuit board is realized. According to the structure, grounding is achieved through the metal characteristic of the shell and the contact characteristic of the circuit board and the metal shell, other grounding parts do not need to be additionally arranged, the weight of the power bank is reduced, the whole structure is easier to assemble, and the whole assembly line operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of power banks, and in particular to a grounding structure of a power bank circuit board based on a metal shell. Background Art

[0002] Power bank, also known as "mobile power bank" or "mobile power bank", is a portable device that integrates power storage, voltage boosting and charging management. The circuit board is one of the most basic components of the power bank device. Some power bank circuit boards on the market need to be grounded to ensure the safety and stability of the circuit. Common methods include sticking conductive foam on the circuit board, adding springs and metal shell contact to achieve grounding.

[0003] The above-mentioned grounding methods all require additional components to realize the grounding function of the circuit board, which increases the weight of the power bank and also increases the structural complexity of the power bank. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a grounding structure of a power bank circuit board based on a metal shell.

[0005] In order to solve the above technical problems, the utility model provides a grounding structure of a power bank circuit board based on a metal shell, and the grounding structure of the power bank circuit board based on a metal shell includes: a metal shell, a circuit board bracket, the circuit board bracket is arranged in the metal shell, a circuit board, the circuit board is installed on the circuit board bracket and contacts the metal shell, and a battery assembly, the battery assembly is installed on the circuit board bracket and is located on one side of the circuit board.

[0006] In the grounding structure of the power bank circuit board based on the metal shell provided by the utility model, it can also have the following characteristics: a step is arranged on the inner side of the metal shell, and the circuit board is overlapped on the step.

[0007] In the grounding structure of the power bank circuit board based on the metal shell provided by the utility model, it can also have the following feature: the side of the step that contacts the circuit board is a clean metal surface.

[0008] In the grounding structure of the power bank circuit board based on the metal shell provided by the utility model, it can also have the following feature: the copper-exposed grounding layer is formed at the place where the circuit board contacts the step.

[0009] In the grounding structure of the power bank circuit board based on the metal shell provided by the utility model, it can also have the following characteristics: a card slot is provided in the metal shell, and protrusions are provided on both sides of the circuit board bracket, and the protrusions are embedded in the card slot.

[0010] In the grounding structure of the power bank circuit board based on the metal shell provided by the utility model, it can also have the following feature: the circuit board and the circuit board bracket are connected by screws.

[0011] The grounding structure of the power bank circuit board based on the metal shell provided by the utility model may also have the following feature: the battery assembly is in contact with the circuit board.

[0012] The beneficial effects of the utility model are:

[0013] In the grounding structure of the power bank circuit board based on the metal shell of the utility model, it includes a metal shell, a circuit board bracket, a circuit board, and a battery pack. The circuit board bracket is arranged in the metal shell, the circuit board is mounted on the circuit board bracket, and the circuit board is in contact with the metal shell, and the circuit board assembly is mounted on the circuit board bracket, located on one side of the circuit board. Based on the grounding structure, the grounding function of the circuit board is realized by setting the shell of the power bank as a metal shell and then contacting the circuit board with the metal shell. The structure realizes grounding by utilizing the metal characteristics of the shell and the contact characteristics of the circuit board with the metal shell, and does not need to add other grounding components, thereby reducing the weight of the power bank, and the assembly of the entire structure is simpler, making the operation of the entire assembly line more convenient.

[0014] In addition, a step is provided on the inner side of the metal shell, and the circuit board is overlapped on the step, and grounding is achieved through the contact between the circuit board and the step. In addition, the side of the step that contacts the circuit board is a clean metal surface, and the copper grounding layer is exposed at the contact between the circuit board and the step. The clean metal surface without dirt is used to better ensure the grounding of the circuit board.

[0015] In addition, a card slot is provided on the metal shell, and protrusions are provided on both sides of the circuit board bracket, which are engaged with the card slot to ensure the stability of the installation of the circuit board bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the grounding structure of the power bank circuit board based on the metal shell in this embodiment;

[0017] Figure 2 is a partial structural schematic diagram of the grounding structure in this embodiment;

[0018] Figure 3 is a schematic diagram of the structure of the metal housing in this embodiment;

[0019] Figure 4 is a schematic diagram of a partial structure of a metal housing in this embodiment;

[0020] Figure 5 is a schematic diagram of the structure of the circuit board in this embodiment;

[0021] Figure 6 Schematic diagram of the structure of the bottom of the circuit board in this embodiment. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] like Figure 1 , 2 As shown, the grounding structure of the power bank circuit board based on the metal shell includes a metal shell 10, a circuit board bracket 20, a circuit board 30 and a battery assembly 40.

[0024] like Figure 3 , 4 As shown, the metal shell 10 is the shell structure of the power bank, which serves as a protective structure for the internal components. A card slot 11 is provided on the side wall of the metal shell 10 near the bottom. The card slot 11 is provided along the length direction of the side wall of the metal shell 10. A step 12 is provided above the card slot 11, and the upper surface of the step 12 is a clean metal surface, which is free of dirt and is a clean metal surface.

[0025] The circuit board bracket 20 is provided with mounting positions for mounting the circuit board 30 and the battery assembly 40. Both sides of the circuit board bracket 20 are provided with protrusions extending outward. The protrusions match the card slot 11. The circuit board bracket 20 is connected to the metal housing 11 by the protrusions being embedded in the card slot 11.

[0026] like Figure 5 , 6 As shown, various electronic components are arranged on the circuit board 30, and copper-exposed grounding layers 32 are arranged on both sides of the bottom.

[0027] The circuit board 30 is installed on the mounting position at one end of the circuit board bracket 20, and is connected to the circuit board bracket 20 by means of threaded connection using fixing screws 31. After installation and connection, the two sides of the bottom of the circuit board 30 overlap on the step 12, so that the exposed copper grounding layers 32 on both sides of the bottom are in contact with the upper surface of the step 12, that is, the exposed copper grounding layer 32 is in contact with the clean metal surface, thereby realizing the grounding function of the circuit board.

[0028] The battery assembly 40 includes a plurality of battery cells, which are mounted on the mounting position at the other end of the circuit board bracket 20 and located on the other side of the circuit board 30. A connecting metal sheet 41 is provided at one end of the battery assembly 40 close to the circuit board 30. The battery assembly 40 is in contact with and connected to the circuit board 30 via the connecting metal sheet 41.

[0029] According to the grounding structure of the power bank circuit board based on the metal shell in the above embodiment, it includes a metal shell, a circuit board bracket, a circuit board, and a battery pack. The circuit board bracket is arranged in the metal shell, the circuit board is mounted on the circuit board bracket, and the circuit board is in contact with the metal shell. The circuit board assembly is mounted on the circuit board bracket and is located on one side of the circuit board. Based on the grounding structure, the grounding function of the circuit board is realized by setting the shell of the power bank as a metal shell and then contacting the circuit board with the metal shell. The structure realizes grounding by utilizing the metal characteristics of the shell and the contact characteristics of the circuit board with the metal shell. There is no need to add other grounding components, which reduces the weight of the power bank, and the assembly of the entire structure is simpler, making the operation of the entire assembly line more convenient.

[0030] In addition, a step is provided on the inner side of the metal shell, and the circuit board is overlapped on the step, and grounding is achieved through the contact between the circuit board and the step. In addition, the side of the step that contacts the circuit board is a clean metal surface, and the copper grounding layer is exposed at the contact between the circuit board and the step. The clean metal surface without dirt is used to better ensure the grounding of the circuit board.

[0031] In addition, a card slot is provided on the metal shell, and protrusions are provided on both sides of the circuit board bracket, which are engaged with the card slot to ensure the stability of the installation of the circuit board bracket.

[0032] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and the equivalent technology, the present application is also intended to include these modifications and variations.

Claims

1. A grounding structure of a power bank circuit board based on a metal shell, characterized in that: include: Metal housing, a circuit board bracket, wherein the circuit board bracket is arranged in the metal shell, a circuit board, wherein the circuit board is mounted on the circuit board bracket and contacts the metal housing, A battery assembly is mounted on the circuit board bracket and is located on one side of the circuit board.

2. The grounding structure of the power bank circuit board based on the metal shell according to claim 1 is characterized in that: A step is arranged on the inner side of the metal shell, and the circuit board is overlapped on the step.

3. The grounding structure of the power bank circuit board based on the metal shell according to claim 2 is characterized in that: The side of the step that contacts the circuit board is a clean metal surface.

4. The grounding structure of the power bank circuit board based on the metal shell according to claim 2 is characterized in that: The portion of the circuit board that contacts the step is a copper-exposed grounding layer.

5. The grounding structure of the power bank circuit board based on the metal shell according to claim 1 is characterized in that: A card slot is arranged in the metal shell, and protrusions are arranged on both sides of the circuit board bracket, and the protrusions are embedded in the card slot.

6. The grounding structure of the power bank circuit board based on the metal shell according to claim 1 is characterized by: The circuit board is connected to the circuit board bracket by screws.

7. The grounding structure of the power bank circuit board based on the metal shell according to claim 1 is characterized by: The battery assembly is in contact with the circuit board.

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