Circuit board connector

Abstract

The circuit board connector provided by the utility model comprises a circuit board and an elastic sheet welded on the circuit board, the elastic sheet is of an inverted U-shaped structure, the elastic sheet comprises a first contact plate and a second contact plate, the first contact plate and the second contact plate have the same structure, and the top of the first contact plate and the top of the second contact plate are connected through a first connecting plate. The first connecting plate is of an arc-shaped structure bent upwards, two interval grooves are formed in the first contact plate and are the first interval groove and the second interval groove respectively, the first interval groove and the second interval groove are formed in the longitudinal direction of the first contact plate, and the first interval groove and the second interval groove penetrate through the front end and the rear end of the first contact plate. According to the circuit board connector, the interval grooves are formed in the first contact plate and the second contact plate, so that the whole elastic piece has a certain deformation space, the elastic piece terminals can be effectively prevented from being damaged, and the overall service life of the connector is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a circuit board connector. Background Art

[0002] Electrical connectors are indispensable components in electronic devices, and spring connectors are a common circuit board connector. At present, spring connectors used to be installed on circuit boards are generally on-board connectors. Current spring connectors are usually welded to the circuit board through bottom welding. However, for spring-type circuit board connectors, as electrical connectors are becoming thinner and lighter, that is, the total height is reduced, this leads to a great space restriction on the structural design. When plugging and unplugging in a limited space, it is easy to cause the terminals on the male connector to squeeze and pull the spring terminals (that is, the so-called PIN collapse phenomenon in the industry). Therefore, it is necessary to improve the structure of the existing circuit board connector. Utility Model Content

[0003] The utility model aims to provide a circuit board connector to solve the technical problems in the background technology.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0005] A circuit board connector, comprising a circuit board and a spring sheet welded on the circuit board, the spring sheet presenting an inverted U-shaped structure, the spring sheet comprising a first contact plate and a second contact plate, the first contact plate and the second contact plate having the same structure, the tops of the first contact plate and the second contact plate being connected by a first connecting plate, the first connecting plate presenting an upwardly bent arc structure, two spacing grooves being provided on the first contact plate, namely a first spacing groove and a second spacing groove, the first spacing groove and the second spacing groove being arranged along the longitudinal direction of the first contact plate, the first spacing groove and the second spacing groove penetrating the front and rear end surfaces of the first contact plate, the first contact plate being divided into a first mounting portion, a second mounting portion and a third mounting portion by the first spacing groove and the second spacing groove, the third mounting portion being between the first mounting portion and the second mounting portion, the first mounting portion and the second mounting portion having the same structure, and a first contact end being concave and bent toward the second contact plate being provided at a lower position of the third mounting portion.

[0006] A first mounting hole is provided in the third mounting portion, and the first mounting hole passes through the front and rear ends of the first contact plate. An elastic arm extends upward on one side below the first mounting hole, and one end of the elastic arm is connected to the first mounting hole. The width of the elastic arm is smaller than the width of the first mounting hole, and the other end of the elastic arm is suspended in the first mounting hole. A second contact end bent toward the second contact plate is provided at the suspended portion of the elastic arm, and the second contact end is above the first contact end.

[0007] A first limiting protrusion protruding outward is provided at a position of the first mounting portion close to the first spacing groove, and a second limiting protrusion protruding outward is provided at a position of the second mounting portion close to the second spacing groove.

[0008] A first welding portion is bent outwardly at the lower side of the first contact plate. The first welding portion is below the circuit board and is a plate-shaped structure arranged in a horizontal direction.

[0009] The spring sheet is an integrated curved structure.

[0010] Compared with the prior art, a circuit board connector of the present application has a spacing groove on the first contact plate and the second contact plate, so that the entire spring sheet has a certain deformation space, which can effectively prevent the spring sheet terminal from being damaged and improve the overall service life of the connector. The spring arm on the spring sheet is consistent with the insertion direction of the terminal, which can also effectively avoid the PIN collapse phenomenon. In addition, the spring sheet is also provided with a first limiting protrusion and a second limiting protrusion, which can ensure that the spring sheet can be firmly on the circuit board during the plugging and unplugging process, ensuring the normal connection of the electrical connector signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 : A schematic diagram of the three-dimensional structure of the present application;

[0012] Figure 2 : Stereoscopic image of shrapnel;

[0013] Figure 3 : The main view of the shrapnel;

[0014] Figure 4 : Left view of the shrapnel. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0016] Specific embodiment 1: Please refer to Figures 1 to 4 In an embodiment of the utility model, a circuit board connector includes a circuit board 1 and a spring 2 welded on the circuit board 1. The spring 2 in the present application is an integrated curved structure.

[0017] In the present application, the spring piece 2 is an inverted U-shaped structure, and the spring piece 2 includes a first contact plate 3 and a second contact plate 4. The first contact plate 3 and the second contact plate 4 have the same structure. The tops of the first contact plate 3 and the second contact plate 4 are connected by a first connecting plate 5. The first connecting plate 5 has an arc structure that bends upward. Two spacing grooves are provided on the first contact plate 3, namely a first spacing groove 301 and a second spacing groove 302. The first spacing groove 301 and the second spacing groove 302 are arranged along the longitudinal direction of the first contact plate 3. The first spacing groove 301 and the second spacing groove 302 pass through the front and rear end surfaces of the first contact plate 3. The first spacing groove 301 and the second spacing groove 302 divide the first contact plate 3 into a first mounting portion 303, a second mounting portion 304 and a third mounting portion 305. The third mounting portion 305 is between the first mounting portion 303 and the second mounting portion 304. The first mounting portion 303 and the second mounting portion 304 have the same structure. The third mounting portion 305 is provided with a first contact end 305-1 that is concave and bent toward the second contact plate 4 at a lower position.

[0018] A first mounting hole 305-2 is provided in the third mounting portion 305, and the first mounting hole 305-2 passes through the front and rear ends of the first contact plate 3. An elastic arm 305-3 extends upward on one side below the first mounting hole 305-2. One end of the elastic arm 305-3 is connected to the first mounting hole 305-2. The width of the elastic arm 305-3 is smaller than the width of the first mounting hole 305-2, and the other end of the elastic arm 305-3 is suspended in the first mounting hole 305-2. The suspended portion of the elastic arm 305-3 is provided with a second contact end 305-3-1 bent toward the second contact plate 4, and the second contact end 305-3-1 is above the first contact end 305-1.

[0019] A first limiting protrusion 307 protruding outward is provided on the first mounting portion 303 near the first spacing groove 301, and a second limiting protrusion 308 protruding outward is provided on the second mounting portion 304 near the second spacing groove 302. When installing the spring piece 2 in the present application, the first limiting protrusion 307 and the second limiting protrusion 308 are above the circuit board 1, which can ensure the accurate installation position of the spring piece 2. At the same time, when the spring piece 2 receives the force of pulling out the terminal, the first limiting protrusion 307 and the second limiting protrusion 308 can provide corresponding resistance to keep the spring piece 2 firmly on the circuit board 1.

[0020] The first contact plate 3 has a first welding portion 306 bent outwardly below the circuit board 1. The first welding portion 306 is a plate-like structure arranged in a horizontal direction. Through the first welding portion 306 and the first limiting protrusion 307 and the second limiting protrusion 308, the spring piece 2 can be limited in two directions, that is, it can play a limiting role in the plugging and unplugging operations of the terminal, so that the spring piece 2 can be firmly fixed on the circuit board 1. The second contact plate 4 has the same structure and working principle as the first contact plate 3, so it will not be repeated.

[0021] Compared with the prior art, a circuit board connector of the present application has a spacing groove on the first contact plate and the second contact plate, so that the entire spring sheet has a certain deformation space, which can effectively prevent the spring sheet terminal from being damaged and improve the overall service life of the connector. The spring arm on the spring sheet is consistent with the insertion direction of the terminal, which can also effectively avoid the PIN collapse phenomenon. In addition, the spring sheet is also provided with a first limiting protrusion and a second limiting protrusion, which can ensure that the spring sheet can be firmly on the circuit board during the plugging and unplugging process, ensuring the normal connection of the electrical connector signal.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A circuit board connector, characterized in that: The invention relates to a method of manufacturing a rotatable plate comprising a first contact plate and a second contact plate, wherein the first contact plate and the second contact plate have the same structure, the tops of the first contact plate and the second contact plate are connected by a first connecting plate, the first connecting plate has an arc structure bent upward, two spacing grooves are provided on the first contact plate, namely a first spacing groove and a second spacing groove, the first spacing groove and the second spacing groove are arranged along the longitudinal direction of the first contact plate, the first spacing groove and the second spacing groove pass through the front and rear end surfaces of the first contact plate, and the first contact plate is divided into a first mounting portion, a second mounting portion and a third mounting portion by the first spacing groove and the second spacing groove, the third mounting portion is between the first mounting portion and the second mounting portion, the first mounting portion and the second mounting portion have the same structure, and a first contact end which is concave and bent toward the second contact plate is provided at a lower position of the third mounting portion.

2. A circuit board connector according to claim 1, characterized in that: A first mounting hole is provided in the third mounting portion, and the first mounting hole passes through the front and rear ends of the first contact plate. An elastic arm extends upward on one side below the first mounting hole, and one end of the elastic arm is connected to the first mounting hole. The width of the elastic arm is smaller than the width of the first mounting hole, and the other end of the elastic arm is suspended in the first mounting hole. A second contact end bent toward the second contact plate is provided at the suspended portion of the elastic arm, and the second contact end is above the first contact end.

3. A circuit board connector according to claim 2, characterized in that: A first limiting protrusion protruding outward is provided at a position of the first mounting portion close to the first spacing groove, and a second limiting protrusion protruding outward is provided at a position of the second mounting portion close to the second spacing groove.

4. A circuit board connector according to claim 3, characterized in that: A first welding portion is bent outwardly at the lower side of the first contact plate. The first welding portion is below the circuit board and is a plate-shaped structure arranged in a horizontal direction.

5. A circuit board connector according to any one of claims 1 to 4, characterized in that: The spring sheet is an integrated curved structure.

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