CN202749841U - Vehicle-mounted charger - Google Patents

Abstract

The utility model discloses a vehicle charger, comprising a shell, a positive input terminal arranged at the bottom of the shell, a negative input terminal arranged on the side of the shell, a PCB circuit board arranged inside the shell, and a USB connector arranged at a port of the shell, wherein the positive input terminal, the negative input terminal and the USB connector are connected to the PCB circuit board at the same time, the shell comprises a body and a cover body, the body and the cover body are integrally formed and the body and the cover body are clamped and matched, there are two vehicle chargers, two negative electrode heads can work when power is supplied, and the negative electrode contact failure phenomenon will not occur during use; the vehicle charger shell is composed of the body and the cover body, and is very convenient to assemble, the negative electrode and the circuit board are designed as a clamping piece, the clamping structure is easy to assemble, and the clamping piece can be effectively locked on the body, and the body is prevented from cracking and falling off the clamping piece.

Description

A car charger

technical field

The utility model relates to a charger, in particular to a vehicle charger.

Background technique

A charger usually refers to a device that converts alternating current into low-voltage direct current. The charger is widely used in various fields, especially in the field of life, it is widely used in common electrical appliances such as mobile phones and cameras. There is a car charger used in cars It has a wide range of application prospects, but there are two negative pole heads of the existing car charger, and only one negative pole head can be used for power supply, and poor contact of the negative pole is easy to occur during use; the existing car charger shell has upper and lower shells, and the The casings between the negative poles are prone to cracking and the negative poles fall off during use, so we must improve the current situation.

Utility model content

The technical problem to be solved by the utility model overcomes the above-mentioned defects, and provides a new type of vehicle charger. 

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A car charger, comprising a shell, a positive input terminal arranged at the bottom of the shell, a negative input terminal set on the side of the shell, a PCB circuit board set inside the shell, and a USB connector set at the port of the shell, The positive input terminal, the negative input terminal and the USB connector are connected to the PCB circuit board at the same time. The shell includes a body and a cover. At the port of the cover body and connected to the PCB circuit board inside the body, two negative fixing holes are symmetrically arranged on both sides of the body, a positive fixing hole is arranged at the bottom of the body, and the two negative input ends are two The retractable arc-shaped spring sheet is fixed on both sides of the PCB circuit board. The PCB circuit board and the two retractable arc-shaped spring sheets on both sides form an engaging piece. The positive input end is fixed at the lower end of the PCB circuit board. The engaging part can be directly inserted into the body from the open end of the body, and two retractable spring pieces enter the negative pole fixing holes on both sides of the body to form a snap-fit structure.

Further, the positive input terminal is an elastic terminal.

Further, the body and the cover are made of plastic.

Further, the body and the cover are made of hardware.

The beneficial effects of the utility model are as follows: There are two on-board chargers, and the two negative poles can work when power is supplied, and there will be no negative negative contact phenomenon during use; the shell of the on-board charger is composed of a body and a cover, and the assembly is very convenient. The negative electrode and the circuit board are designed as a clamping part. The clamping structure is easy to assemble, can effectively lock the clamping part on the body, and prevent the body from cracking and falling off the clamping part.

Description of drawings

Figure 1 is the front view of the utility model;

Fig. 2 is the sectional view of the front view of the utility model;

Fig. 3 is a side view of the utility model;

Fig. 4 is a sectional view of a side view of the utility model.

Detailed ways

In order to better understand the technical content of the utility model, the following provides specific embodiments in conjunction with the accompanying drawings to further illustrate the utility model.

In this embodiment, referring to Fig. 1 to Fig. 4 , a car charger includes a casing, the casing includes a body and a cover, the bottom of the body is provided with a positive input terminal 3, and the side of the body is provided with a negative input terminal 4, The inside of the body is provided with a PCB circuit board, and the port of the cover body 2 is provided with a USB connector. The positive input terminal 3, the negative input terminal 4 and the USB connector are connected to the PCB circuit board at the same time, and the body 1 and the cover body 2 are integrally formed. And the body 1 and the cover body 2 are clamped and matched, two negative electrode fixing holes are symmetrically arranged on both sides of the body 1, a positive electrode fixing hole is arranged at the bottom of the body 1, and the two negative electrode input terminals 4 are two The retractable arc-shaped spring sheet is fixed on both sides of the PCB circuit board. The PCB circuit board and the two retractable arc-shaped spring sheets on both sides form a snap-fitting piece. The positive input terminal 3 is fixed on the lower end of the PCB circuit board. The engaging parts can be directly inserted into the body 1 from the open end of the body, and two retractable spring pieces enter the negative electrode fixing holes on both sides of the body to form an engaging structure.

The positive input terminal is an elastic connecting post, the body and cover are made of plastic, and the body and cover are made of hardware.

The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot limit the specific implementation of the utility model. All equal changes and modifications according to the utility model are within the protection scope of the utility model.

Claims (4)

1. A car charger, comprising a housing, and a positive input terminal disposed at the bottom of the housing, and a negative input terminal disposed on the side of the housing, a PCB circuit board disposed inside the housing, and a USB connector arranged at the housing port , the positive input terminal, the negative input terminal and the USB connector are connected to the PCB circuit board at the same time, and it is characterized in that: the shell includes a body and a cover, and the body and the cover are integrally formed and the body and the cover are clamped and matched , the USB connector is set on the cover port and connected to the PCB circuit board inside the body, two negative fixing holes are symmetrically arranged on both sides of the body, a positive fixing hole is arranged at the bottom of the body, and the two The negative input terminal is two retractable arc-shaped springs and is fixed on both sides of the PCB circuit board. The PCB circuit board and the two retractable arc-shaped springs on both sides form a snap-fitting piece, and the positive input terminal is fixed on the PCB. At the lower end of the circuit board, the engaging piece can be directly inserted into the body from the open end of the body, and two retractable spring pieces enter the negative electrode fixing holes on both sides of the body to form an engaging structure. 2. The vehicle-mounted charger according to claim 1, wherein the positive input end is an elastic pole. 3. The vehicle charger according to claim 1, wherein the body and the cover are made of plastic. 4. The vehicle charger according to claim 1, wherein the body and the cover are made of hardware.

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