CN214849161U

CN214849161U - Vehicle-mounted charger

Info

Publication number: CN214849161U
Application number: CN202121433439.5U
Authority: CN
Inventors: 彭卫
Original assignee: Dongguan Hechuang Lyuneng Electronic Technology Co ltd
Current assignee: Dongguan Hechuang Lyuneng Electronic Technology Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-11-23
Anticipated expiration: 2031-06-24

Abstract

The utility model discloses a vehicle-mounted charger, which comprises a shell, a circuit board, a spring and a contact head, wherein the contact head is arranged at the front end of the shell, and the spring is connected between the contact head and the circuit board; the front end of the circuit board is connected with a connecting piece, the tail part of the spring is fixedly connected with the connecting piece in a sleeved mode, and the connecting piece is made of a conductive material to form a connecting and electrical property switching structure for the spring. The utility model discloses a set up the connecting piece of similar T type structure on the circuit board to the spring is cup jointed to the connecting piece, through the multi-position contact between connecting piece and the spring, not only can realize transmitting the effect of heavy current, and the stability of connecting simultaneously is also better, does not have the problem that the connection position splits, takes off and takes off, and stability and reliability are higher, and it is more convenient to assemble, can need not welded fastening.

Description

Vehicle-mounted charger

Technical Field

The utility model relates to an on-vehicle accessory product technical field especially relates to an on-vehicle charger.

Background

The vehicle-mounted charger can charge mobile phones and the like on the automobile, and is very convenient to use. Currently, the mainstream vehicle charger generally includes a housing, a circuit board (assembly), a charging contact and a spring, and the charging contact and the circuit board are usually connected by the spring to realize electrical connection. The tradition is generally that the front end and the contact that charges of spring are connected, and the tail end is direct and circuit board welded fastening, also some can be provided with the mounting, and the mounting is connected with the circuit board, and the tail end and the mounting of spring are connected. First, since only the tail end of the spring is connected to the circuit board or the fixing member, the connection portion is small, which results in poor fixing stability, and the connection member is easily broken and fails during a long-term compression-rebound working cycle of the spring; secondly, along with the development of the technology, the charging current of the electronic product is larger and larger, and the passing current is smaller due to the fact that the spring is only in a point-shaped connection structure, and the passing requirement of the large current cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model discloses shortcoming to prior art exists provides a structural design is more reasonable, connect at steadiness and reliability higher, can pass through more heavy current's on-vehicle charger.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides an on-vehicle charger, including casing, circuit board, spring and contact, the contact sets up in the front end of casing, and spring coupling is between contact and circuit board, its characterized in that: the front end of the circuit board is connected with a connecting piece, the tail part of the spring is fixedly connected with the connecting piece in a sleeved mode, and the connecting piece is made of a conductive material to form a connecting and electrical property switching structure for the spring.

Furthermore, a buckling hole is formed in the front of the circuit board, so that a buckling arm is formed in front of the buckling hole; the rear part of the connecting piece is provided with a buckling groove, so that the rear part of the connecting piece forms an inserting part, the inserting part is inserted into the buckling hole, and the buckling arm is buckled into the buckling groove, so that the fixing structure of the connecting piece and the circuit board is realized. The connecting piece with the structure is very convenient to operate when being assembled with a circuit board, and is stable and reliable in connection.

Furthermore, the connecting piece is of a two-section structure and comprises a connector and a connecting column, and the buckling groove is formed along the side wall of the connector; the spring is sleeved on the connecting column and is abutted against the connector.

Further, the connector and the connecting column are both cylindrical structures, the central axes of the connector and the connecting column are overlapped, and the diameter of the connector is larger than that of the connecting column.

Furthermore, the spring is tightly sleeved on the connecting column and is in close contact with the surface of the connecting column, so that the spring can conduct current to the connector through the tail end of the spring, and meanwhile, the current conduction can be realized directly through the contact with the connecting column, and the current transmission capability is greatly improved. And the structure also enables the spring to be easily assembled, the stability after assembly is very good, and the hidden trouble of fracture of the connecting part does not exist.

Further, the length of the spring sleeve on the connecting column is no more than half of the total length of the spring, so that the spring has enough elasticity for the contact.

The utility model discloses a set up the connecting piece of similar T type structure on the circuit board to the spring is cup jointed to the connecting piece, through the multi-position contact between connecting piece and the spring, not only can realize transmitting the effect of heavy current, and the stability of connecting simultaneously is also better, does not have the problem that the connection position splits, takes off and takes off, and stability and reliability are higher, and it is more convenient to assemble, can need not welded fastening.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an internal structure view of the present invention;

fig. 3 is a structural diagram of the internal decomposition of the present invention.

In the figure, 1 is a housing, 2 is a circuit board, 21 is a fastening hole, 22 is a fastening arm, 3 is a connector, 31 is a connector, 32 is a connecting post, 33 is a fastening groove, 34 is a plug part, 4 is a spring, and 5 is a contact.

Detailed Description

In this embodiment, referring to fig. 1, 2, and 3, the vehicle-mounted charger includes a housing 1, a circuit board 2, a spring 4, and a contact 5, where the contact 5 is disposed at a front end of the housing 1, and the spring 4 is connected between the contact 5 and the circuit board 2; the front end of the circuit board 2 is connected with a connecting piece 3, the tail part of the spring 4 is fixedly connected with the connecting piece 3 in a sleeved mode, and the connecting piece 3 is made of a conductive material to form a connecting and electrical property switching structure for the spring 4.

A buckling hole 21 is arranged at the front part of the circuit board 2, and a buckling arm 22 is formed in front of the buckling hole 21; a buckling groove 33 is arranged at the rear part of the connecting piece 3, so that the rear part of the connecting piece 3 forms an inserting part 34, the inserting part 34 is inserted into the buckling hole 21, and the buckling arm 22 is buckled into the buckling groove 33, so that the fixing structure of the connecting piece 3 and the circuit board 2 is realized. The connecting piece 3 with the structure is very convenient to operate when being assembled with the circuit board 2, and is stable and reliable in connection.

The connecting piece 3 is of a two-section structure and comprises a connector 31 and a connecting column 32, and the buckling groove 33 is arranged along the side wall of the connector 31; the spring 4 is sleeved on the connecting column 32 and is abutted against the connecting head 31.

The connector 31 and the connecting column 32 are both cylindrical structures, the central axes of the connector 31 and the connecting column 32 are overlapped, and the diameter of the connector 31 is larger than that of the connecting column 32.

The spring 4 is tightly sleeved on the connecting column 32 and is in close contact with the surface of the connecting column 32, so that the spring 4 can conduct current to the connector 31 through the tail end of the spring, and can also directly realize current conduction through the contact with the connecting column 32, thereby greatly improving the current transmission capability. And the structure also enables the spring 4 to be easily assembled, the stability after assembly is very good, and the hidden trouble of fracture of the connecting part does not exist.

The length of the spring 4 that fits over the connection post 32 does not exceed half the total length of the spring 4, so that the spring 4 has sufficient resilience to the contact 5.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, i.e. the present invention is intended to cover all equivalent variations and modifications within the scope of the present invention.

Claims

1. The utility model provides an on-vehicle charger, including casing, circuit board, spring and contact, the contact sets up in the front end of casing, and spring coupling is between contact and circuit board, its characterized in that: the front end of the circuit board is connected with a connecting piece, the tail part of the spring is fixedly connected with the connecting piece in a sleeved mode, and the connecting piece is made of a conductive material to form a connecting and electrical property switching structure for the spring.

2. The vehicle-mounted charger according to claim 1, characterized in that: the front part of the circuit board is provided with a buckling hole, so that a buckling arm is formed in front of the buckling hole; the rear part of the connecting piece is provided with a buckling groove, so that the rear part of the connecting piece forms an inserting part, the inserting part is inserted into the buckling hole, and the buckling arm is buckled into the buckling groove, so that the fixing structure of the connecting piece and the circuit board is realized.

3. The vehicle-mounted charger according to claim 2, characterized in that: the connecting piece is of a two-section structure and comprises a connector and a connecting column, and the buckling groove is arranged along the side wall of the connector; the spring is sleeved on the connecting column and is abutted against the connector.

4. The vehicle-mounted charger according to claim 3, characterized in that: the connector and the connecting column are both cylindrical structures, the central axes of the connector and the connecting column are overlapped, and the diameter of the connector is larger than that of the connecting column.

5. The vehicle-mounted charger according to claim 4, characterized in that: the spring is tightly sleeved on the connecting column and is in close contact with the surface of the connecting column.

6. The vehicle-mounted charger according to claim 5, characterized in that: the length of the spring sleeved on the connecting column does not exceed half of the total length of the spring.