Connector

Abstract

The invention relates to the technical field of conductive connection, and particularly discloses a connector which comprises a main circuit board, and a groove is formed in one side of the main circuit board; the conductive contact piece is an electrode plate or a circuit board; the plastic shell is installed at the top end of the main circuit board, a butt joint groove is formed in the middle of the bottom end of the plastic shell and forms a conductive contact plugging space, a plurality of U-shaped grooves are formed in the top end of the plastic shell, and the U-shaped grooves and the butt joint groove are arranged in a penetrating mode; the plastic shell is used for isolating the conductor and ensuring that the conductor is attached to the conductive contact piece, and the conductor is welded to the top end of the main circuit board. According to the invention, the overall size of the whole system is reduced without influencing the requirements of electrical performance and mechanical performance of the electric connector, the staggered distributed conductor structure is provided, and the possibility of short circuit of the main circuit board when the circuit board or the electrode plate is not inserted is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of conductive connection, and in particular to a connector. Background Art

[0002] Electrical connectors are electrothermal mechanical devices that are widely used in various electrical circuits. They connect or disconnect current or signals. Electrical connectors can not only be temporary and convenient to plug and unplug at any time, but also be permanent connections between electrical devices or wires. The main function of an electrical connector is to bridge two conductors on a loop so that current or signals can flow from one conductor to another. There are many types of electrical connectors, which can be classified into six types according to different standards: primary connection, connection between basic circuit components and their packaging, connection between circuit boards and packaging, connection between multiple circuit boards, connection between subsystems and subsystems, and I / O end of the assembly to the complete system. For the interconnection solution on the circuit board, among them, the typical on-board connector mainly relies on the combination of male connectors and female connectors to complete the transmission of current. The plastic shell of the electrical connector is used for the connector to isolate the metal conductors from each other. The plastic shell is also used to align the conductors and ensure that the conductors are firmly locked to the insulator.

[0003] In the pursuit of miniaturization, various components are trying to reduce their size as much as possible. The connectors used in miniaturized and mountable products, such as the combination of male and female connectors, can be miniaturized in structure to a limited extent. Although electrical connectors are used in circuits and need to meet the electrical requirements in the specifications, they also need to meet the standards for mechanical performance listed in the specifications in mechanical applications.

[0004] In the transmission of electricity, in order to achieve the required current, the spacing and size of the conductors of the electrical connector must be maintained at a certain size. A size less than this will increase the resistance, thereby increasing the temperature and limiting the current. In terms of mechanical properties, the electrical connector needs to be able to withstand the insertion and removal force and retention force in the application, as well as various requirements for structural performance. Electrical connectors that are too thin and too fine will not be able to meet the standard mechanical requirements in terms of mechanical properties. Therefore, the spacing and size of the conductors are limited by both current transmission and mechanical properties, causing the miniaturization of electrical connectors to reach a bottleneck. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, the present invention provides a connector that can solve the problem in the above background technology that the miniaturization of the electrical connector has reached a bottleneck and it is difficult to reduce the overall size of the entire system without affecting the electrical and mechanical performance requirements of the electrical connector.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A connector, comprising: A main circuit board, wherein a groove is provided on one side of the main circuit board; A conductive contact, wherein the conductive contact is an electrode sheet or a circuit board; A plastic shell, the plastic shell is mounted on the top of the main circuit board, a docking groove is provided in the middle of the bottom end of the plastic shell, the docking groove forms a plugging and unplugging space for the conductive contact, a plurality of U-shaped grooves are provided on the top of the plastic shell, the U-shaped grooves are arranged in an inverted U shape, and the U-shaped grooves and the docking grooves are arranged in a through-connection manner; Conductor, the plastic shell is used to isolate the conductor and ensure that the conductor and the conductive contact fit each other, the conductor is located in the U-shaped groove, the number of the conductors is more than two, the conductor is welded to the top of the main circuit board, the conductor includes a horizontal support part, a vertical support part and an arc-shaped spring piece that are integrally arranged, the horizontal support part is welded to the top of the main circuit board, the horizontal support part and the vertical support part are vertically distributed, and the arc-shaped spring piece is installed at the top of the vertical support part.

[0007] Preferably, the docking groove of the plastic shell is L-shaped, and the docking groove runs through the top end, the bottom end and the side wall of the plastic shell.

[0008] Preferably, both sides of the plastic housing facing each other are provided with limiting grooves, the limiting grooves are arranged in a "convex" shape, and the vertical section side walls of the limiting grooves are in contact with the groove walls of the main circuit board.

[0009] Preferably, the top end of the horizontal section of the lateral support portion is lower than the top wall of the horizontal section of the limiting groove, and the bottom end of the lateral support portion is higher than the bottom end of the plastic shell.

[0010] Preferably, a plurality of pads are arranged on the top of the main circuit board, and the bottom end of the conductor is welded to the pads.

[0011] Preferably, when the number of the conductors is greater than two, the conductors in two columns are arranged in a linear array distribution, and the pads in two columns are arranged in a staggered distribution.

[0012] Preferably, the arc-shaped spring piece is arranged in a handle shape, and the arc-shaped spring piece is arranged inclined on a vertical plane.

[0013] Preferably, the lengths of the transverse support portion and the arc-shaped spring piece along the long side direction of the conductive contact are both smaller than the length of the vertical support portion, and the connecting positions of the transverse support portion and the arc-shaped spring piece with the vertical support portion are respectively provided with rounded corners.

[0014] Preferably, a limiting channel is provided on the side wall of the vertical section of the U-shaped groove of the plastic housing away from the conductive contact, and limiting protrusions are provided on both sides facing each other of the vertical support portion, and the limiting protrusions are located in the limiting channel.

[0015] Preferably, when the number of the conductors is two, the number of the pads is two and they are arranged axially symmetrically with respect to the plastic housing, the two conductors are arranged axially symmetrically with respect to the plastic housing, and a gap is left between the two conductors.

[0016] The beneficial effects of the present invention are: 1. By setting the main circuit board, the conductive contact and the conductor, the beneficial effect that can be obtained is that a groove is set on one side of the main circuit board, the conductive contact is an electrode sheet or a circuit board, the plastic shell is installed on the top of the main circuit board, and a docking groove is set in the middle of the bottom end of the plastic shell, and the docking groove forms a plug-in and pull-out space for the conductive contact. The top of the plastic shell is provided with a plurality of U-shaped grooves, the U-shaped grooves are set in an inverted U shape, and the U-shaped grooves and the docking grooves are set through, the plastic shell is used to isolate the conductor and ensure that the conductor and the conductive contact are attached to each other, the conductor is located in the U-shaped groove, and the top of the main circuit board is provided with a plurality of pads, and the bottom end of the conductor is welded to the pads; The method of connecting male and female connectors is replaced by using an electrical connector assembled on the main circuit board to directly contact the electrode sheet or the conductive contact of the circuit board to transmit signals and currents. The conductive path includes: conductive contacts, conductors, and pads on the main circuit board. The conductive contacts are directly soldered to the pads on the main circuit board, thereby reducing the overall size of the entire system without affecting the electrical and mechanical performance requirements of the electrical connector.

[0017] 2. By setting the plastic shell and the conductor, the beneficial effect that can be obtained is that the plastic shell is used to isolate the conductor and ensure that the conductor and the conductive contact are fitted together, the conductor is located in the U-shaped groove, the number of conductors is more than two, the conductor is welded to the top of the main circuit board, the conductor includes a horizontal support part, a vertical support part and an arc-shaped spring piece that are integrally arranged, the horizontal support part is welded to the top of the main circuit board, the horizontal support part and the vertical support part are vertically distributed, the arc-shaped spring piece is installed at the top of the vertical support part, a plurality of pads are arranged at the top of the main circuit board, and the bottom end of the conductor is welded to the pad; When the number of conductors is two, the number of pads is two and they are axially symmetrically arranged about the plastic shell, the two conductors are axially symmetrically arranged about the plastic shell, and a gap is left between the two conductors. When the number of conductors is greater than two, the two columns of conductors are distributed in a linear array, and the two columns of pads are staggered. The conductive contact is inserted between the multiple conductors, and the handle-shaped arc-shaped spring piece is squeezed to produce elastic deformation, generating a reaction force. The multiple arc-shaped spring pieces are respectively located on both sides of the conductive contact to clamp and fix the conductive contact. It has a uniform conductive and clamping structure, reduces space occupancy, and has a staggered distributed conductor structure, which reduces the possibility of short circuit of the main circuit board when the circuit board or electrode sheet is not inserted.

[0018] 3. By setting the limiting protrusion and the limiting channel, the beneficial effect that can be obtained is that the arc-shaped spring piece is set in a handle shape, the arc-shaped spring piece is set obliquely in the vertical plane, the length of the horizontal support part and the arc-shaped spring piece along the long side direction of the conductive contact is shorter than the length of the vertical support part, the connection positions of the horizontal support part and the arc-shaped spring piece with the vertical support part are respectively provided with rounded corners, the side wall of the vertical section of the U-shaped groove of the plastic shell away from the conductive contact is provided with a limiting channel, and the two opposite sides of the vertical support part are provided with limiting protrusions, and the limiting protrusions are located in the limiting channel; While the arc-shaped spring piece produces elastic deformation, the limiting channel cooperates with the limiting protrusion to limit the vertical support part, reducing the effect of the deformation of the arc-shaped spring piece on the lateral support part, improving the connection stability between the connector and the main circuit board, increasing the deformation of the arc-shaped spring piece in a fixed space, reducing the space occupancy rate, and improving the connection stability between the electrode sheet or circuit board and the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side view of the present invention; Figure 3 This is a diagram of the installation structure of the plastic housing and the conductor in the present invention; Figure 4 A bottom view of the plastic housing and the conductor in the present invention; Figure 5 is a top view of the plastic housing in the present invention; Figure 6 A bottom view of the plastic housing of the present invention; Figure 7 It is a diagram of the installation structure of the conductor in the present invention; Figure 8 It is a top view distribution diagram of the conductor in the present invention.

[0021] Description of reference numerals: In the figure: 1. main circuit board; 11. soldering pad; 2. conductive contact; 3. plastic shell; 31. docking groove; 32. limiting groove; 33. U-shaped groove; 34. limiting channel; 4. conductor; 41. horizontal support part; 42. vertical support part; 43. arc-shaped spring piece; 44. limiting protrusion. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are clearly and completely described below in combination with the accompanying drawings and preferred embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present application, it should be understood that the orientation or position relationship indicated by "inside", "outside", etc. is based on the orientation or position described in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, a specific orientation structure and operation, and therefore cannot be understood as a limitation on the present application.

[0024] Reference Figure 1-Figure 8 , is a connector disclosed in the present invention, comprising: A main circuit board 1, wherein a groove is provided on one side of the main circuit board 1; Conductive contact 2, the conductive contact 2 is an electrode sheet or a circuit board; The plastic housing 3 is mounted on the top of the main circuit board 1. A docking groove 31 is provided in the middle of the bottom of the plastic housing 3. The docking groove 31 of the plastic housing 3 is L-shaped. The docking groove 31 penetrates the top, bottom and side wall of the plastic housing 3. The docking groove 31 forms a plugging and unplugging space for the conductive contact 2. Conductor 4, plastic shell 3 is used to isolate conductor 4 and ensure that conductor 4 and conductive contact 2 are attached to each other, the number of conductors 4 is more than two, conductor 4 is welded to the top of main circuit board 1, multiple pads 11 are arranged at the top of main circuit board 1, bottom end of conductor 4 is welded to pad 11, when the number of conductors 4 is two, the number of pads 11 is two and they are arranged axially symmetrically with respect to plastic shell 3, two conductors 4 are arranged axially symmetrically with respect to plastic shell 3, when the number of conductors 4 is greater than two, two rows of conductors 4 are arranged in linear array distribution, two rows of pads 11 are arranged in staggered distribution, conductor 4 includes a lateral support portion 41 arranged in an integral manner , vertical support portion 42 and arc-shaped spring piece 43, the transverse support portion 41 is welded to the top of the main circuit board 1, the transverse support portion 41 and the vertical support portion 42 are vertically distributed, the arc-shaped spring piece 43 is installed at the top of the vertical support portion 42, the arc-shaped spring piece 43 is arranged in a handle shape, and the arc-shaped spring piece 43 is inclined in the vertical plane. The lengths of the transverse support portion 41 and the arc-shaped spring piece 43 along the long side direction of the conductive contact 2 are both shorter than the length of the vertical support portion 42, and the connection positions of the transverse support portion 41 and the arc-shaped spring piece 43 and the vertical support portion 42 are respectively provided with rounded corners, and the opposite sides of the plastic shell 3 are provided with limiting grooves 32, and the limiting grooves 32 are in the shape of a "convex" character. The vertical section side wall of the limiting groove 32 is fitted with the groove wall of the main circuit board 1, the top of the horizontal section of the lateral support part 41 is lower than the top wall of the horizontal section of the limiting groove 32, and the bottom of the lateral support part 41 is higher than the bottom of the plastic shell 3. A plurality of U-shaped grooves 33 are arranged on the top of the plastic shell 3. The U-shaped grooves 33 are arranged in an inverted U shape. The U-shaped grooves 33 and the docking grooves 31 are arranged in a through-connection manner. The conductor 4 is located in the U-shaped grooves 33. The vertical section side wall of the U-shaped groove 33 of the plastic shell 3 is away from the conductive contact 2. A limiting channel 34 is arranged. The vertical support part 42 is arranged on both sides facing each other with limiting protrusions 44. The limiting protrusions 44 are located in the limiting channel 34. The conductive contact 2 is 2 is inserted between the multiple conductors 4, and the handle-shaped arc-shaped spring piece 43 is squeezed to produce elastic deformation, generating a reaction force. The multiple arc-shaped spring pieces 43 are respectively located on both sides of the conductive contact 2 to clamp and fix the conductive contact 2. When the arc-shaped spring piece 43 produces elastic deformation, the limiting channel 34 cooperates with the limiting protrusion 44 to limit the vertical support part 42, thereby reducing the effect of the deformation of the arc-shaped spring piece 43 on the horizontal support part 41, improving the connection stability between the connector and the main circuit board 1, increasing the deformation amount of the arc-shaped spring piece 43 in the fixed space, reducing the space occupancy rate, and improving the connection stability between the electrode sheet or the circuit board and the connector.

[0025] The working principle and use process of the present invention are as follows: the electrical connector assembled on the main circuit board 1 is directly in contact with the conductive contact 2 of the electrode sheet or the circuit board to transmit signals and currents, replacing the male and female connector connection method, wherein the conductive path includes: a conductive contact 2, a conductor 4, and a soldering pad 11 on the main circuit board 1, wherein the conductive contact 2 is directly soldered to the soldering pad 11 of the main circuit board 1, and the overall size of the entire system is reduced without affecting the electrical and mechanical performance requirements of the electrical connector. When the number of conductors 4 is two, the number of soldering pads 11 is two and they are axially symmetrically arranged about the plastic housing 3, the two conductors 4 are axially symmetrically arranged about the plastic housing 3, and a gap is left between the two conductors 4. When the number of conductors 4 is greater than two, the two columns of conductors 4 are both distributed in a linear array, and the two The column pads 11 are arranged in a staggered distribution, which reduces the possibility of short circuit of the main circuit board 1 when the circuit board or electrode sheet is not inserted. The conductive contact 2 is inserted between the multiple conductors 4, and the handle-shaped arc-shaped spring piece 43 is squeezed to produce elastic deformation, generating a reaction force. The multiple arc-shaped spring pieces 43 are respectively located on both sides of the conductive contact 2 to clamp and fix the conductive contact 2. While the arc-shaped spring piece 43 produces elastic deformation, the limiting channel 34 cooperates with the limiting protrusion 44 to limit the vertical support part 42, reducing the effect of the deformation of the arc-shaped spring piece 43 on the horizontal support part 41, improving the connection stability between the connector and the main circuit board 1, increasing the deformation amount of the arc-shaped spring piece 43 in a fixed space, reducing the space occupancy rate, and improving the connection stability between the electrode sheet or circuit board and the connector.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A connector, characterized in that: include; A main circuit board (1), wherein a groove is provided on one side of the main circuit board (1); A conductive contact (2), wherein the conductive contact (2) is an electrode sheet or a circuit board; A plastic shell (3), the plastic shell (3) being mounted on the top of the main circuit board (1), a docking groove (31) being provided at the middle of the bottom of the plastic shell (3), the docking groove (31) forming a plugging and unplugging space for the conductive contact (2), a plurality of U-shaped grooves (33) being provided at the top of the plastic shell (3), the U-shaped grooves (33) being arranged in an inverted U shape, and the U-shaped grooves (33) and the docking grooves (31) being arranged in a through-connected manner; The conductor (4) is used for isolating the conductor (4) and ensuring that the conductor (4) and the conductive contact (2) are in contact with each other. The conductor (4) is located in the U-shaped groove (33). The number of the conductors (4) is more than two. The conductor (4) is welded to the top of the main circuit board (1). The conductor (4) comprises a transverse support portion (41), a vertical support portion (42) and an arc-shaped spring piece (43) which are integrally arranged. The transverse support portion (41) is welded to the top of the main circuit board (1). The transverse support portion (41) and the vertical support portion (42) are vertically distributed. The arc-shaped spring piece (43) is installed at the top of the vertical support portion (42).

2. A connector according to claim 1, characterized in that: The docking groove (31) of the plastic shell (3) is arranged in an L-shape, and the docking groove (31) passes through the top end, the bottom end and the side wall of the plastic shell (3).

3. A connector according to claim 1, characterized in that: The plastic housing (3) is provided with limiting grooves (32) on both sides facing each other. The limiting grooves (32) are arranged in a "convex" shape, and the vertical section side walls of the limiting grooves (32) fit with the groove walls of the main circuit board (1).

4. A connector according to claim 3, characterized in that: The top end of the horizontal section of the transverse support portion (41) is lower than the top wall of the horizontal section of the limiting groove (32), and the bottom end of the transverse support portion (41) is higher than the bottom end of the plastic shell (3).

5. A connector according to claim 1, characterized in that: A plurality of solder pads (11) are arranged at the top end of the main circuit board (1), and the bottom end of the conductor (4) is welded to the solder pads (11).

6. A connector according to claim 5, characterized in that: When the number of the conductors (4) is greater than two, the conductors (4) in two columns are arranged in a linear array distribution, and the pads (11) in two columns are arranged in a staggered distribution.

7. A connector according to claim 1, characterized in that: The arc-shaped spring piece (43) is arranged in a handle shape, and the arc-shaped spring piece (43) is arranged in an inclined manner on a vertical plane.

8. A connector according to claim 1, characterized in that: The lengths of the transverse support portion (41) and the arc-shaped spring piece (43) along the long side direction of the conductive contact (2) are both shorter than the length of the vertical support portion (42), and the connection positions of the transverse support portion (41) and the arc-shaped spring piece (43) with the vertical support portion (42) are respectively provided with rounded corners.

9. The connector according to claim 1, characterized in that: A limiting channel (34) is provided on the side wall of the vertical section of the U-shaped groove (33) of the plastic housing (3) away from the conductive contact (2), and limiting protrusions (44) are provided on both opposite sides of the vertical support portion (42), and the limiting protrusions (44) are located in the limiting channel (34).

10. A connector according to claim 5, characterized in that: When the number of the conductors (4) is two, the number of the pads (11) is two and they are arranged axially symmetrically with respect to the plastic housing (3), and the two conductors (4) are arranged axially symmetrically with respect to the plastic housing (3).

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