Wire-to-board connector

Abstract

The utility model discloses a wire-to-board connector, a board end connector comprises a first plastic cement housing and a first terminal, the first plastic cement housing comprises a bottom wall, a first side wall and a second side wall which are oppositely arranged along the length direction, and a rear wall arranged along the width direction, and the first terminal is plugged on the rear wall; the line end connector comprises a second plastic shell, a second terminal and a power line, the second terminal is arranged in the second plastic shell, the power line extends into the second terminal, and when the line end connector is combined with the board end connector, the second terminal is electrically connected with the first terminal; the inner surface of the first side wall and the inner surface of the second side wall are each provided with at least one vertical limiting groove and a horizontal limiting groove perpendicularly intersecting with the vertical limiting groove. According to the utility model, the limiting grooves and the limiting parts which are matched with each other are arranged on the inner side walls of the plastic shells of the board end connector and the wire end connector, so that buckling connection can be realized in the vertical or horizontal direction, blind insertion and oblique insertion functions can be realized, and more choices are provided for PCB layout.

Description

Technical Field

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

[0002] With the gradual miniaturization and precision design of consumer electronics, customers are giving smaller and smaller board space to connectors and are requiring higher and higher performance from connector products. Currently, the mainstream small-pitch wire-to-board connectors on the market are basically installed horizontally, and the board-end connectors can only be designed at the edge of the PCB board. The application scenarios are greatly restricted, which has a great impact on the customer's overall layout. Utility Model Content

[0003] Based on the above technical problems, an embodiment of the present application provides a wire-to-board connector, which has a plurality of installation methods such as longitudinal insertion or compatible with lateral insertion, and has the advantage of easy disassembly.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a wire-to-board connector, comprising:

[0005] A board-end connector, the board-end connector comprising a first plastic shell and a first terminal, the first plastic shell comprising a bottom wall, a first side wall and a second side wall arranged opposite to each other in a length direction, and a rear wall arranged in a width direction, the first terminal being plugged into the rear wall;

[0006] A line-end connector, the line-end connector comprising a second plastic housing, a second terminal and a power line, the second terminal being disposed in the second plastic housing, the power line extending into the second terminal, and when the line-end connector is combined with the board-end connector, the second terminal is electrically connected to the first terminal;

[0007] Wherein, the inner surfaces of the first side wall and the second side wall of the board-end connector are respectively provided with at least one vertical limiting groove and a horizontal limiting groove perpendicularly intersecting therewith.

[0008] Furthermore, the vertical limiting groove includes a first vertical limiting groove and a second vertical limiting groove, a portion of the horizontal limiting groove crosses the second vertical limiting groove, and the other portion is located between the first limiting groove and the rear wall; each vertical limiting groove is provided with a stop protrusion protruding into the interior of the first plastic shell on both sides, and the stop protrusion is located on the upper side of the horizontal limiting groove.

[0009] Furthermore, a lateral limiting portion protruding outward and cooperating with the horizontal limiting groove is provided on the side wall of the second plastic shell, and the lateral limiting portion includes a first convex ridge, a second convex ridge, and a third convex ridge which are arranged at intervals and are in a straight line.

[0010] Furthermore, a longitudinal limiting portion cooperating with the vertical limiting groove is further provided on the side wall of the second plastic shell, and the longitudinal limiting portion and the transverse limiting portion are perpendicular to each other; the longitudinal limiting portion is respectively arranged between the first convex ridge, the second convex ridge and the third convex ridge.

[0011] Furthermore, a crimping portion protruding from the second plastic shell is provided at one end of the upper surface of the second plastic shell away from the power cord, and a downwardly recessed positioning groove is provided in the middle of the rear wall of the first plastic shell, and the crimping portion is buckled in the positioning groove.

[0012] Furthermore, it also includes a fixing plate, and the first side wall and the second side wall of the board-end connector are respectively provided with downwardly extending fixing grooves, and the fixing plate is vertically inserted into the fixing grooves.

[0013] Furthermore, a plurality of first terminal grooves penetrating the rear wall are provided on the rear wall of the first plastic shell, the first terminals extend into the first terminal grooves, and a plurality of avoidance grooves corresponding to the first terminal grooves are provided on the bottom wall; the first terminal includes a fixed end and an insertion end; the insertion end is a long straight flat needle-shaped end with a chamfered end, and the fixed end is located at the other end side of the insertion end; a connecting portion is provided at the lower end of the first terminal groove, and the fixed end forms a hook portion to buckle on the connecting portion.

[0014] Furthermore, the second plastic shell is provided with a plurality of second terminal grooves arranged side by side, each second terminal groove includes a hollow portion and a receiving portion, the top surface of the hollow portion is provided with a shielding portion extending in the direction of the power cord, and the bottom surface thereof is provided with load-bearing reinforcement ribs near the receiving portion, and the opposite side surfaces of the receiving portion are respectively provided with inwardly protruding columns.

[0015] Furthermore, the second terminal includes a first clamping portion surrounded by two oppositely arranged clamping plates and a U-shaped second clamping portion formed by first bringing one end of the two clamping plates closer together and then bending downward; the first clamping portion is placed in the hollow portion, and the second clamping portion is placed in the receiving portion; the rear end surface of the first clamping portion of the second terminal is also provided with a barb or a protrusion, and the second terminal is inserted into the second terminal groove and hard interferes with the inner wall of the second terminal groove through the barb or the protrusion.

[0016] Furthermore, the lower end of the first clamping portion of the second terminal is provided with a first clamping opening close to each other, and the first clamping opening clamps the first terminal; the middle of the two ends of the U-shaped arm of the second clamping portion is provided with a second clamping opening open upwards, and the second clamping opening clamps the power cord.

[0017] The beneficial effect of the utility model is that: by setting mutually matching limiting grooves and limiting parts on the internal side walls of the plastic shells of the board-end connector and the wire-end connector, the application can achieve a snap-on connection in the vertical or horizontal direction, and can also realize blind insertion and oblique insertion functions, providing more options for PCB layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the wire-to-board connector in an embodiment of the utility model;

[0019] Figure 2 This is an exploded schematic diagram of a wire-to-board connector in one embodiment of the utility model;

[0020] Figure 3 This is an exploded schematic diagram of a wire-to-board connector in another embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the board-end connector in an embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the first plastic shell of the board-end connector in the embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the second plastic housing of the line end connector in one embodiment of the utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the first terminal in the embodiment of the utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the second terminal in the embodiment of the utility model;

[0026] Figure numerals: 10-board end connector, 20-line end connector, 30-first terminal, 40-fixing plate, 50-PCB board, 60-second terminal, 70-power line, 100-first plastic shell, 101-positioning groove, 102-fixing groove, 103-first vertical limiting groove, 104-second vertical limiting groove, 134-stop protrusion, 105-horizontal limiting groove, 106-avoidance groove, 107-first terminal groove, 1070-connecting portion, 110-bottom wall, 120-first side wall, 130-second side wall, 140-rear wall, 2 00-second plastic shell, 201-crimping part, 203-longitudinal limiting part, 204-lateral limiting part, 2040-first convex ridge, 2041-second convex ridge, 2042-third convex ridge, 205-second terminal groove, 2050-hollow part, 2051-receiving part, 206-load-bearing reinforcement rib, 207-column, 208-shielding part, 301-fixing end, 302-insertion end, 303-hook part, 601-first clamping part, 602-second clamping part, 603-barb, 604-second clamping mouth, 605-first clamping mouth. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0028] The embodiments of the present application provide a wire-to-board connector to solve the limitation of the prior art that the wire-to-board connector must be installed on the edge of the board.

[0029] like Figures 1 to 8 As shown, this is an embodiment of the present application:

[0030] A wire-to-board connector, comprising:

[0031] The board-end connector 10 includes a first plastic housing 100 and a first terminal 30. The first plastic housing 100 includes a bottom wall 110, a first side wall 120 and a second side wall 130 arranged opposite to each other along a length direction, and a rear wall 140 arranged along a width direction. The first terminal 30 is plugged into the rear wall 140.

[0032] The line end connector 20 includes a second plastic housing 200, a second terminal 60 and a power line 70. The second terminal 60 is disposed in the second plastic housing 200. The power line 70 extends into the second terminal 60. The second terminal 60 is electrically connected to the first terminal 30.

[0033] The inner surfaces of the first side wall 120 and the second side wall 130 are respectively provided with at least one vertical limiting groove extending longitudinally and a horizontal limiting groove 105 extending transversely and perpendicularly intersecting therewith.

[0034] Specifically, refer to Figure 2-Figure 4 The vertical limiting groove includes a first vertical limiting groove 103 and a second vertical limiting groove 104, and the horizontal limiting groove 105 crosses the second vertical limiting groove 104. A part of the horizontal limiting groove 105 crosses the second vertical limiting groove 104, and the other part is located between the first limiting groove 103 and the rear wall 140; both sides of the upper part of each vertical limiting groove are provided with stop protrusions 134 protruding into the first plastic shell 100, and the stop protrusions 134 are located on the upper side of the horizontal limiting groove 105.

[0035] The first plastic shell 100 of the board-end connector 10 is designed in three sections in the horizontal direction, which are divided by the first vertical limiting groove 103 and the second vertical limiting groove 104. The first vertical limiting groove 103 and the second vertical limiting groove 104 can be used as locking positions in the horizontal direction. The vertical direction is divided into two sections by the horizontal limiting groove 105, and the horizontal limiting groove 105 can be used as a locking position in the vertical direction. This can provide more options for the disassembly and assembly methods of the line-end connector 20.

[0036] Based on the above structure, further reference Figure 2 In one embodiment of the present application, a lateral limiting portion 204 protruding outward and cooperating with the horizontal limiting groove 105 is provided on the side wall of the second plastic shell 200. The lateral limiting portion 204 includes a first convex ridge 2040, a second convex ridge 2041, and a third convex ridge 2042 that are arranged at intervals and in a straight line. The stop protrusion 134 is used to prevent the lateral limiting portion 204 from detaching upward. This setting method is compatible with both vertical assembly and horizontal assembly methods, and can realize blind insertion and oblique insertion functions.

[0037] Reference Figure 3Compared with the previous embodiment, the side wall of the second plastic shell 200 in this embodiment is further provided with a longitudinal limiting portion 203 that matches the first vertical limiting groove 103 and the second vertical limiting groove 104. The longitudinal limiting portion 203 and the transverse limiting portion 204 intersect and are perpendicular to each other. Specifically, there are two longitudinal limiting portions 203, which are respectively arranged between the first convex ridge 2040, the second convex ridge 2041, and the third convex ridge 2042 of the transverse limiting portion 204. In this embodiment, the plastic shells of the board end and the line end are designed to be vertically upright, that is, vertically buckled. The first vertical limiting groove 103 and the second vertical limiting groove 104 can be used as horizontal locking positions, and the horizontal limiting groove 105 can be used as vertical locking positions to lock the longitudinal limiting portion 203 and the transverse limiting portion 204, respectively, which can further ensure the connection strength between the line end connector 20 and the board end connector 10 to prevent them from falling out.

[0038] The above two embodiments have the following common points:

[0039] Specific reference Figure 2 and Figure 3 The upper surface of the second plastic housing 200 is also provided with a crimping portion 201 extending away from the end of the power cord 70, and the width of the crimping portion 201 is less than the length of the side of the plastic housing where it is located. Correspondingly, a downwardly recessed positioning groove 101 is provided in the middle of the top surface of the rear wall 140 of the first plastic housing 100, and the crimping portion 201 is buckled into the positioning groove 101. The design of the crimping portion 201 can reduce the difficulty of assembly, and the line end crimping portion 201 and the board end positioning groove 101 form a matching position, which can realize the blind plugging function of the male and female pairing of the line-to-board connector.

[0040] Further references Figure 2-Figure 3 A fixing plate 40 is also provided. The middle of the upper end surfaces of the first side wall 120 and the second side wall 130 of the board-end connector 10 are respectively provided with downwardly extending fixing grooves 102. The fixing plate 40 is vertically inserted into the fixing groove 102. By designing the fixing groove 102, the fixing plate 40 can be positively inserted, which can lock the front end of the product to prevent the product from tilting.

[0041] Reference Figure 4 A plurality of first terminal grooves 107 penetrating the rear wall 140 of the first plastic shell 100 are provided, and the first terminals 30 extend into the first terminal grooves 107 respectively. An avoidance groove 106 corresponding to the first terminal groove 107 is provided on the bottom wall 110. A gap is left between the first terminal 30 and the bottom of the first plastic shell 100. The avoidance groove 106 is designed under the first terminal 30 to avoid the automatic detection of the CCD during product production.

[0042] Reference Figure 7The first terminal 30 includes a fixed end 301 and an insertion end 302. The insertion end 302 of the first terminal 30 is a long straight flat needle, and its end is provided with a chamfer. The fixed end 301 is located at the other end side of the insertion end 302. A connecting portion 1070 is provided at the lower end of the first terminal groove 107. The fixed end 301 forms a hook portion 303 to buckle on the connecting portion 1070 of the bottom wall 110 (such as Figure 5 ); The first terminal 30 is designed with a local chamfer to provide a guide for the insertion of the wire end connector 20.

[0043] Reference Figure 6 The second plastic shell 200 is provided with a plurality of second terminal grooves 205 arranged side by side, and the second terminal groove 205 includes a hollow portion 2050 and a receiving portion 2051. The top surface of the hollow portion 2050 is provided with a shielding portion 208 extending in the direction of the power cord, and the shielding portion 208 is designed to prevent overpressure during assembly of the wire; the second terminal 60 is pre-installed through the second terminal groove 205 of the terminal, which can prevent the second terminal 60 from swinging after assembly, and a load-bearing reinforcement rib 206 is provided at the bottom near the receiving portion 2051, and two opposite side surfaces of the receiving portion 2051 are respectively provided with inwardly protruding columns 207. The load-bearing reinforcement rib 206 and the column 207 are designed to improve the product's pressure resistance, which can prevent the product from being broken or deformed due to stress.

[0044] like Figure 8 As shown, the second terminal 60 includes a first clamping portion 601 surrounded by two oppositely arranged clamping plates and a U-shaped second clamping portion 602 formed by first bringing one end of the two clamping plates closer together and then bending downward, the first clamping portion 601 is placed in the hollow portion 2050, and the second clamping portion 602 is placed in the receiving portion 2051; the rear end surface of the first clamping portion 601 of the second terminal 60 is provided with a barb 603 or a convex point (not shown in the figure), the second terminal 60 is inserted into the second terminal groove 205 and hard interferes with the inner wall of the second terminal groove 205 through the barb 603 or the convex point, and the second terminal 60 is designed with double barbs to be inserted into the second plastic shell 200, so as to increase the product clamping force and prevent the second terminal 60 from falling out when the male and female are matched.

[0045] The lower end of the first clamping portion 601 of the second terminal 60 is provided with a first clamping opening 605 that is close to each other. The first clamping opening 605 is used to be electrically connected to the first terminal 30. By designing them to be close to each other, the first terminal 30 is tightly fixed. The middle of the two ends of the U-shaped arm of the second clamping portion 603 is provided with a second clamping opening 604 that is open upward. The second clamping opening 604 clamps and tightens the power cord 70 to prevent it from slipping upward.

[0046] The signal transmission process of the wire-to-board connector of the present application is as follows: after the first plastic body 100 of the board end is inserted into the first terminal 30, the lower end surface pin of the hook portion 303 of the first terminal 30 is welded on the PCB board 50, and after the wire end is inserted into the second terminal 60, it pierces into the power cord 70, and the second terminal 60 of the wire end contacts the first terminal 30 of the board end to form an integral circuit, completing the transmission of current and signals.

[0047] Specifically, the steps for wire-to-board connectors to achieve signal transmission are as follows:

[0048] 1. Insert a plurality of first terminals 30 into the first plastic body 100 at the board end;

[0049] 2. Insert the two fixing plates 40 into the first plastic body 100 at the board end;

[0050] 3. SMT solder the board-side connector 10 onto the main board PCB 50;

[0051] 4. Insert the second terminal 60 into the second plastic housing 200 of the line end;

[0052] 5. Pierce the power cord 70 and install it on the second terminal 60;

[0053] 6. Snap the line-end connector 20 onto the board-end connector 10 as a whole, and the terminals form a loop.

[0054] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-mentioned embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A wire-to-board connector, characterized in that: include: A board-end connector, the board-end connector comprising a first plastic shell and a first terminal, the first plastic shell comprising a bottom wall, a first side wall and a second side wall arranged opposite to each other in a length direction, and a rear wall arranged in a width direction, the first terminal being plugged into the rear wall; A line-end connector, the line-end connector comprising a second plastic shell, a second terminal and a power cord, the second terminal being arranged in the second plastic shell, the power cord extending into the second terminal, and when the line-end connector is combined with the board-end connector, the second terminal is electrically connected to the first terminal; wherein the inner surfaces of the first side wall and the second side wall of the board-end connector are respectively provided with at least one vertical limiting groove and a horizontal limiting groove perpendicularly intersecting therewith.

2. The wire-to-board connector according to claim 1, characterized in that: The vertical limiting groove includes a first vertical limiting groove and a second vertical limiting groove, a portion of the horizontal limiting groove crosses the second vertical limiting groove, and the other portion is located between the first limiting groove and the rear wall; both sides of each vertical limiting groove are provided with stop protrusions protruding toward the inside of the first plastic shell, and the stop protrusions are located on the upper side of the horizontal limiting groove.

3. The wire-to-board connector according to claim 1, characterized in that: A lateral limiting portion protruding outward and cooperating with the horizontal limiting groove is disposed on the side wall of the second plastic shell. The lateral limiting portion includes a first convex ridge, a second convex ridge, and a third convex ridge which are arranged at intervals and are in a straight line.

4. The wire-to-board connector according to claim 3, characterized in that: A longitudinal limiting portion cooperating with the vertical limiting groove is further provided on the side wall of the second plastic shell, and the longitudinal limiting portion and the transverse limiting portion are perpendicular to each other; the longitudinal limiting portion is respectively arranged between the first convex ridge, the second convex ridge and the third convex ridge.

5. The wire-to-board connector according to claim 1, characterized in that: A crimping portion protruding from the second plastic shell is provided at one end of the upper surface of the second plastic shell away from the power cord, and a downwardly recessed positioning groove is provided in the middle of the rear wall of the first plastic shell, and the crimping portion is buckled in the positioning groove.

6. The wire-to-board connector according to claim 1, characterized in that: It also includes a fixing plate. The first side wall and the second side wall of the board-end connector are respectively provided with downwardly extending fixing grooves, and the fixing plate is vertically inserted into the fixing grooves.

7. The wire-to-board connector according to claim 1, characterized in that: The rear wall of the first plastic shell is provided with a plurality of first terminal grooves penetrating the rear wall, the first terminals extend into the first terminal grooves, and the bottom wall is provided with a plurality of avoidance grooves corresponding to the first terminal grooves; the first terminal includes a fixed end and an insertion end; the insertion end is a long straight flat needle shape, and its end is provided with a chamfer, and the fixed end is located at the other end side of the insertion end; the lower end of the first terminal groove is provided with a connecting portion, and the fixed end forms a hook portion to buckle on the connecting portion.

8. The wire-to-board connector according to claim 1, characterized in that: The second plastic shell is provided with a plurality of second terminal slots arranged side by side, each second terminal slot includes a hollow portion and a receiving portion, the top surface of the hollow portion is provided with a shielding portion extending in the direction of the power cord, and the bottom surface thereof is provided with load-bearing reinforcement ribs near the receiving portion, and the opposite side surfaces of the receiving portion are respectively provided with inwardly protruding columns.

9. The wire-to-board connector according to claim 8, characterized in that: The second terminal includes a first clamping portion surrounded by two oppositely arranged clamping plates and a U-shaped second clamping portion formed by first bringing one end of the two clamping plates closer together and then bending downward; the first clamping portion is placed in the hollow portion, and the second clamping portion is placed in the receiving portion; the rear end surface of the first clamping portion of the second terminal is also provided with a barb or a convex point, and the second terminal is inserted into the second terminal groove and hard interferes with the inner wall of the second terminal groove through the barb or the convex point.

10. The wire-to-board connector according to claim 9, characterized in that: The lower end of the first clamping part of the second terminal is provided with first clamping openings close to each other, and the first clamping opening clamps the first terminal; the middle of the two ends of the U-shaped arm of the second clamping part is provided with second clamping openings open upwards, and the second clamping opening clamps the power cord.

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