Reinforced connector capable of preventing plugging loosening

Abstract

The utility model discloses a reinforced connector capable of preventing plugging loosening. The reinforced connector comprises a PCB, a plastic main body, a first terminal group and a second terminal group, wherein the first terminal group and the second terminal group are respectively arranged at the upper end and the lower end of the plastic main body; a first enclosure and a second enclosure which are opposite to each other up and down are arranged on the plastic main body, and an insertion cavity for inserting a male head is defined by the first enclosure and the second enclosure; a first reinforcing plate and a second reinforcing plate which are used for connecting the left side and the right side of the first fence and the left side and the right side of the second fence up and down are arranged on the two side edges of the plastic body respectively, a plurality of first reinforcing ribs are arranged on the upper surface of the first fence, and a plurality of second reinforcing ribs are arranged below the second fence. According to the utility model, the problem of poor contact with a male head caused by loosening of the connector after long-term plugging can be avoided, the strength of the plastic main body can be improved, and the problems of cracking, fracture and the like of the plastic main body caused by long-term plugging can be avoided.

Description

[Technical field]

[0001] The utility model belongs to the technical field of connectors, and particularly relates to a reinforced connector capable of preventing plugging and loosening. [Background technology]

[0002] A connector usually consists of two parts, a male head and a female head. When the male head is inserted into the female head, they can connect the circuit and transmit signals and power. The male and female heads of the connector are fixed by a simple plug-in method when plugged in, and they are prone to loosening during use, which will lead to unstable signal or power transmission. Poor contact is prone to occur during power transmission, which not only affects normal use, but is also prone to short circuits and open circuits, posing certain safety hazards.

[0003] For example, existing designs such as Figure 1 The electrical connector 800 for telephone shown in the figure has a plastic body provided with a first baffle 802 and a second baffle 803 facing each other up and down. The first baffle 802 and the second baffle 803 surround a male plug-in cavity 801 for plugging with a male plug, and both sides of the male plug-in cavity 801 are open, and the upper and lower terminals are respectively in contact with the terminals on the upper and lower surfaces of the male plug for conduction. It is difficult to avoid the telephone line from shaking in all directions when in use, and there may be a pulling phenomenon, which will cause the first baffle 802 at the upper end of the connector to tend to move upward and the second baffle 803 at the lower end to tend to move downward, thereby causing the opening of the male plug-in cavity 801 of the connector to open up and down, thereby causing the male and female plugs to loosen and cause poor contact problems. In addition, long-term plugging and unplugging can easily lead to reduced strength of the upper and lower ends of the connector, cracks, and even breakage in severe cases.

[0004] Therefore, it is necessary to provide a reinforced connector that prevents plugging from loosening to solve the above technical problems. [Contents of the utility model]

[0005] The main purpose of the utility model is to provide a reinforced connector that prevents loosening during plugging, which can avoid the problem of poor contact with the male head caused by the loosening of the connector after long-term plugging and unplugging, and at the same time improve the strength of the plastic body to avoid cracks, breakage and other problems in the plastic body caused by long-term plugging and unplugging, and at the same time do not increase the cost of the connector while improving the strength of the connector.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: a reinforced connector for preventing loosening of plugging, comprising a PCB board, a plastic body mounted on the PCB board, a first terminal group arranged at the upper end of the plastic body, and a second terminal group arranged at the lower end of the plastic body and arranged opposite to the first terminal group; a first enclosure and a second enclosure opposite to each other are arranged on the plastic body, the first enclosure and the second enclosure enclose a plug-in cavity for inserting a male head, one end of the first terminal group and the second terminal group are both inserted into the plug-in cavity to form a clamping structure with the upper and lower surfaces of the male head terminal respectively, and the other ends are both welded to the PCB board; a first reinforcing plate and a second reinforcing plate are arranged on both sides of the plastic body to connect the left and right sides of the first enclosure and the second enclosure respectively, a plurality of first reinforcing ribs extending horizontally are arranged on the upper surface of the first enclosure, and a plurality of second reinforcing ribs extending horizontally are arranged below the second enclosure.

[0007] Furthermore, the first reinforcing plate is semi-enclosed and has an opening at the front end for avoiding the male plug; the second reinforcing plate is enclosed and has a front end flush with the front end of the plug-in cavity.

[0008] Furthermore, a first weight-reducing groove and a second weight-reducing groove are respectively provided on the left and right sides of the upper surface of the first enclosure.

[0009] Furthermore, the first enclosure and the second enclosure are both provided with positioning grooves that are opposite to each other up and down and cooperate with the male head on the inner side near the second reinforcing plate, and a reinforcing protrusion corresponding to the position of the positioning groove and used to increase the strength of the first enclosure is provided in the second weight-reducing groove.

[0010] Furthermore, a plurality of positioning pins for preventing the plastic body from moving horizontally and a plurality of spring buckles for preventing the plastic body from moving vertically are arranged at the bottom of the plastic body; the spring buckles are elastic and are distributed on both sides of the bottom of the plastic body, and the spring buckles include a tip arranged at the bottom and a latching protrusion arranged on the upper part of the tip.

[0011] Furthermore, the PCB board is provided with a plurality of first positioning holes adapted to be installed with the positioning pins, a plurality of second positioning holes adapted to be installed with the spring buckles, and a plurality of welding holes for welding the first terminal group and the second terminal group.

[0012] Furthermore, the first terminal group includes a first welding portion welded to the PCB board, a first retaining portion extending vertically upward from the first welding portion, a second retaining portion extending vertically upward and horizontally bent from the first retaining portion, and a first contact arm bent 180° downward from the end of the second retaining portion and extending horizontally.

[0013] Furthermore, the second terminal group includes a second welding portion welded to the PCB board, a third retaining portion extending vertically upward from the second welding portion, a fourth retaining portion extending vertically upward and horizontally bent from the third retaining portion, and a second contact arm bent 180° upward from the end of the fourth retaining portion and extending horizontally.

[0014] Furthermore, the outer side of the plastic body is provided with a plurality of first accommodating grooves for fixing the first retaining part, the upper side is provided with a plurality of second accommodating grooves for fixing the second retaining part, the lower side is provided with a third accommodating groove for fixing the third retaining part, and the lower side is provided with a fourth accommodating groove for fixing the fourth retaining part; the plastic body is provided with a first limiting groove for limiting the end of the first contact arm and a second limiting groove for limiting the end of the second contact arm in the plug-in cavity.

[0015] Furthermore, the first reinforcing ribs and the second containing grooves are arranged in a staggered manner; the second reinforcing ribs and the fourth containing grooves are arranged in a staggered manner.

[0016] Compared with the prior art, the utility model has the beneficial effects of preventing the plug-in loosening by strengthening the connector:

[0017] (1) The first reinforcing plate and the second reinforcing plate can strengthen the connection strength between the first enclosure and the second enclosure, and the first reinforcing ribs and the second reinforcing ribs can also strengthen the strength of the plastic body. The reinforcing plates and reinforcing ribs provided around the plug-in cavity of the plastic body together form a surrounding protection to increase the strength of the connector, which can improve the overall strength of the connector, prevent the opening of the connector plug-in cavity from opening up and down, and avoid the problem of loosening of the connector after long-term plugging and unplugging, resulting in poor contact with the male head. At the same time, it can also improve the strength of the plastic body and avoid cracks and breakages in the plastic body due to long-term plugging and unplugging;

[0018] (2) Since the first reinforcing plate, the second reinforcing plate, the first reinforcing rib and the second reinforcing rib will increase the usage of the raw material of the plastic body, a first weight-reducing groove and a second weight-reducing groove are respectively provided on the upper surfaces of the left and right sides of the first enclosure to reduce the raw material of the plastic body and thus reduce the raw material cost, which can ensure the strength of the connector without increasing the raw material cost, improve the quality of the connector without increasing the raw material cost, and generally reduce the total cost of the connector;

[0019] (3) The bottom of the plastic body of the electrical connector is provided with a plurality of positioning pins and a plurality of spring catches for achieving fixed installation with the PCB board. The positioning pins are installed in cooperation with the first positioning holes on the PCB board. When assembled on the PCB board, the positioning pins not only play a guiding role, but also prevent the plastic body from moving horizontally. The spring catches are distributed on both sides of the bottom of the plastic body. The spring catches include a tip at the bottom and a clamping protrusion in the middle. The tip is convenient for inserting into the second positioning hole of the PCB board, and the clamping protrusion is restricted on the surface of the PCB board so that the plastic body and the PCB board are fixedly installed. When the connector is subjected to vibration or impact, the clamping protrusion can restrict the vertical movement of the plastic body.

[0020] Therefore, the reinforced connector 100 for preventing loosening of the plug provided by the present solution can avoid the problem of the connector becoming loose after long-term plugging and unplugging, resulting in poor contact with the male head. At the same time, it can also improve the strength of the plastic body, avoiding problems such as cracks and breakages in the plastic body caused by long-term plugging and unplugging. Moreover, the cost of the connector can be increased without increasing the strength of the connector.

Brief Description of the Drawings

[0021] Figure 1 A schematic diagram of the three-dimensional structure of an existing telephone electrical connector;

[0022] Figure 2 A schematic diagram of the three-dimensional structure of a reinforced connector for preventing loosening of the plug according to an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of the three-dimensional structure of a reinforced connector for preventing loosening of the plug according to an embodiment of the utility model;

[0024] Figure 4 A schematic diagram of the three-dimensional structure of a reinforced connector for preventing loosening of the plug according to an embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the plastic main body of the embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the plastic main body of the embodiment of the utility model;

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of the first terminal group in an embodiment of the utility model;

[0028] Figure 8 This is a schematic diagram of the three-dimensional structure of the second terminal group in the embodiment of the utility model;

[0029] The numbers in the figure represent:

[0030] 100-reinforced connector to prevent loosening of plugging; 800-electrical connector for telephone, 801-male plug cavity, 802-first baffle, 803-second baffle;

[0031] 1-PCB board, 11-first positioning hole, 12-second positioning hole, 13-welding hole;

[0032] 2-plastic body, 21-insertion cavity, 22-first reinforcement plate, 221-avoidance, 23-second reinforcement plate, 24-first reinforcement rib, 25-second reinforcement rib, 26-positioning pin, 27-spring buckle, 271-tip, 272-card convex, 28-first weight-reducing groove, 29-second weight-reducing groove, 210-first accommodating groove, 211-second accommodating groove, 212-third accommodating groove, 213-fourth accommodating groove, 214-first limiting groove, 215-second limiting groove, 216-first enclosure, 217-second enclosure, 218-positioning groove, 219-reinforcement convex block;

[0033] 3-first terminal group, 31-first welding portion, 32-first holding portion, 33-second holding portion, 34-first contact arm, 35-first fixing barb, 36-first contact protrusion;

[0034] 4 - second terminal group, 41 - second welding portion, 42 - third holding portion, 43 - fourth holding portion, 44 - second contact arm, 45 - second fixing barb, 46 - second contact protrusion. [Specific implementation method]

[0035] Please refer to Figure 2-Figure 8 The present embodiment is a reinforced connector 100 for preventing loose connection. The reinforced connector 100 for preventing loose connection includes a PCB board 1, a plastic body 2 mounted on the PCB board 1, a first terminal group 3 arranged at the upper end of the plastic body 2, and a second terminal group 4 arranged at the lower end of the plastic body 2 and opposite to the first terminal group 3 in upper and lower directions.

[0036] The plastic body 2 is provided with a first enclosure 216 and a second enclosure 217 which are opposite to each other in upper and lower directions. The first enclosure 216 and the second enclosure 217 enclose a plug-in cavity 21 for inserting a male terminal. One ends of the first terminal group 3 and the second terminal group 4 are inserted into the plug-in cavity 21 to form a clamping structure with the upper and lower surfaces of the male terminal respectively, and the other ends are welded to the PCB board 1.

[0037] In order to improve the overall strength of the connector and prevent the first enclosure 216 of the connector from moving upward and the second enclosure 217 from moving downward during long-term plugging, thereby causing the opening of the connector plug-in cavity 21 to open up and down, a first reinforcing plate 22 and a second reinforcing plate 23 are provided on both sides of the plastic body 2 to connect the left and right sides of the first enclosure 216 and the second enclosure 217 up and down respectively, a plurality of first reinforcing ribs 24 extending horizontally are provided on the upper surface of the first enclosure 216, and a plurality of second reinforcing ribs 25 extending horizontally are provided under the second enclosure 217. The reinforcing plates and reinforcing ribs provided around the plug-in cavity 21 of the plastic body 2 together form a surrounding protection to increase the strength of the connector, which can improve the overall strength of the connector, prevent the opening of the connector plug-in cavity 21 from opening up and down, avoid the problem of loosening of the connector due to long-term plugging and unplugging, and cause poor contact with the male head. At the same time, it can also improve the strength of the plastic body 2 and avoid cracks and breakages in the plastic body due to long-term plugging and unplugging.

[0038] Since the first reinforcing plate 22, the second reinforcing plate 23, the first reinforcing rib 24 and the second reinforcing rib 25 will increase the usage of the raw materials of the plastic main body 2, and the increase in raw materials will increase the raw material cost, therefore, the first weight-reducing groove 28 and the second weight-reducing groove 29 are respectively provided on the upper surfaces of the left and right sides of the first enclosure 216 to reduce the raw materials of the plastic main body 2 and thus reduce the raw material cost. Therefore, the design of this scheme can ensure the strength of the connector without increasing the raw material cost, improve the quality of the connector but do not increase the raw material cost, and generally reduce the total cost of the connector.

[0039] Moreover, in order to prevent the connector from moving when subjected to vibration, impact and other problems, causing the terminal welding part to loosen and crack, thereby causing poor conductivity, a number of positioning pins 26 for preventing the plastic body 2 from moving horizontally and a number of spring buckles 27 for preventing the plastic body 2 from moving vertically are provided at the bottom of the plastic body 2.

[0040] The PCB board 1 is provided with a plurality of first positioning holes 11 for fitting with the positioning pins 26 , a plurality of second positioning holes 12 for fitting with the spring buckles 27 , and a plurality of welding holes 13 for welding the first terminal group 3 and the second terminal group 4 .

[0041] The positioning pin 26 is installed in cooperation with the first positioning hole 11 . When assembled on the PCB board 1 , the positioning pin 26 not only plays a guiding role, but also prevents the plastic body 2 from moving horizontally.

[0042] The spring buckle 27 is elastic and distributed on both sides of the bottom of the plastic body 2. The spring buckle 27 includes a tip 271 arranged at the bottom and a clamping protrusion 272 arranged on the upper part of the tip 271. The tip 271 is convenient for inserting into the second positioning hole 12 of the PCB board 1, and the clamping protrusion 272 is restricted on the surface of the PCB board 1 to prevent the plastic body 2 from moving vertically so that the plastic body 2 and the PCB board 1 can be fixedly installed. When the connector is subjected to vibration and impact, the clamping protrusion 272 can limit the vertical movement of the plastic body 2; therefore, when subjected to vibration, impact and other problems, no movement will occur, and the terminal welding part will not be loosened and cracked to cause poor conduction.

[0043] The first terminal group 3 includes a first soldering portion 31 soldered to the PCB board 1, a first retaining portion 32 extending vertically upward from the first soldering portion 31, a second retaining portion 33 extending vertically upward and horizontally bending from the first retaining portion 32, and a first contact arm 34 bending 180° downward from the end of the second retaining portion 33 and extending horizontally.

[0044] The second terminal group 4 includes a second welding portion 41 welded to the PCB board 1, a third retaining portion 42 extending vertically upward from the second welding portion 41, a fourth retaining portion 43 extending vertically upward and horizontally bending from the third retaining portion 42, and a second contact arm 44 bending upward 180° from the end of the fourth retaining portion 43 and extending horizontally.

[0045] The first retaining portion 32 and the second retaining portion 33 are both provided with a first fixing barb 35 protruding outward and snapped into the plastic body 2, and the third retaining portion 42 and the fourth retaining portion 43 are both provided with a second fixing barb 45 protruding outward and snapped into the plastic body 2. This method of snapping in the fixing barb can make the assembly of the terminal group and the plastic body 2 more stable.

[0046] The first contact arm 34 and the second contact arm 44 are both located in the plug-in cavity 21. The first contact arm 34 and the second contact arm 44 are metal terminals that are elastic and can move elastically in the vertical direction. When the male plug is inserted into the plug-in cavity 21, the first contact arm 34 is clamped in contact with the upper surface of the male plug, and the second contact arm 44 is clamped in contact with the lower surface of the male plug, thereby jointly forming an upper and lower surface clamping structure to achieve clamping contact and conduction between the electrical connector and the male plug. The first contact arm 34 is provided with a first contact protrusion 36 that is in contact and conduction with the male plug, and the second contact arm 44 is provided with a second contact protrusion 46 that is in contact and conduction with the male plug.

[0047] The plastic body 2 is provided with a plurality of first receiving grooves 210 for fixing the first holding portion 32 on the outside, a plurality of second receiving grooves 211 for fixing the second holding portion 33 on the upper side, a third receiving groove 212 for fixing the third holding portion 42 on the lower side, and a fourth receiving groove 213 for fixing the fourth holding portion 43 on the lower side. The plastic body 2 is provided with a first limiting groove 214 for limiting the end of the first contact arm 34 and a second limiting groove 215 for limiting the end of the second contact arm 44 in the plug-in cavity 21. The first limiting groove 214 and the second limiting groove 215 are provided to limit the ends of the first contact arm 34 and the second contact arm 44 respectively to prevent the first contact arm 34 from directly contacting the second contact arm 44 and causing a short circuit.

[0048] The first reinforcing ribs 24 are arranged on the upper surface of the first enclosure 216, and are arranged alternately with the second accommodating grooves 211; the second reinforcing ribs 25 are arranged below the second enclosure 217, and are arranged alternately with the fourth accommodating grooves 213; the first reinforcing ribs 24 and the second reinforcing ribs 25 can strengthen the strength of the plastic body 2 and prevent the opening of the connector plug-in cavity 21 from opening up and down during long-term and multiple plug-ins.

[0049] The first reinforcing plate 22 is semi-enclosed, and a relief opening 221 for evading the male connector is disposed at the front end of the first reinforcing plate 22; the second reinforcing plate 23 is enclosed, and the front end of the second reinforcing plate 23 is flush with the front end of the plug-in cavity 21; the first reinforcing plate 22 and the second reinforcing plate 23 can strengthen the connection strength between the first enclosure 216 and the second enclosure 217, and can prevent the opening of the connector plug-in cavity 21 from opening up and down, thereby avoiding cracks and breakages caused by long-term plugging and unplugging of the connector.

[0050] The first enclosure 216 and the second enclosure 217 are both provided with positioning grooves 218 that are opposite to each other and cooperate with the male head on the inner side near the second reinforcing plate 23. Since the second weight-reducing groove 29 is just above the positioning groove 218, the positioning groove 218 will make the inner side of the second weight-reducing groove 29 thinner, thereby reducing the strength of the right side of the first enclosure 216. Therefore, a reinforcing protrusion 219 corresponding to the position of the positioning groove 218 and used to increase the strength of the first enclosure 216 is provided in the second weight-reducing groove 29 to facilitate strength compensation for the positioning groove 218.

[0051] The positioning groove 218 is set on one side of the closed second reinforcing plate 23, which can be used for identification and positioning before plugging in. You only need to point the positioning protrusion of the male connector toward the side of the second reinforcing plate 23, and then align it with the positioning groove 218 and plug it into place. It is simple and convenient.

[0052] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A reinforced connector for preventing loosening of the plug, characterized in that: It includes a PCB board, a plastic body mounted on the PCB board, a first terminal group arranged at the upper end of the plastic body, and a second terminal group arranged at the lower end of the plastic body and arranged opposite to the first terminal group in upper and lower directions; the plastic body is provided with a first enclosure and a second enclosure opposite to each other in upper and lower directions, the first enclosure and the second enclosure enclose a plug-in cavity for inserting a male terminal, one end of the first terminal group and the second terminal group are inserted into the plug-in cavity to form a clamping structure with the upper and lower surfaces of the male terminal respectively, and the other end is welded to the PCB board; a first reinforcing plate and a second reinforcing plate are provided on both sides of the plastic body to connect the left and right sides of the first enclosure and the second enclosure respectively in upper and lower directions, a plurality of first reinforcing ribs are provided on the upper surface of the first enclosure, and a plurality of second reinforcing ribs are provided below the second enclosure.

2. A reinforced connector for preventing loosening of plugging as claimed in claim 1, characterized in that: The first reinforcing plate is semi-enclosed and has a relief opening at the front end for evading the male connector; the second reinforcing plate is enclosed and has a front end flush with the front end of the plug-in cavity.

3. A reinforced connector for preventing loosening of plugging as claimed in claim 1, characterized in that: A first weight-reducing groove and a second weight-reducing groove are respectively arranged on the left and right sides of the upper surface of the first enclosure.

4. A reinforced connector for preventing loosening of plugging as claimed in claim 3, characterized in that: The first enclosure and the second enclosure are both provided with positioning grooves that are opposite to each other and cooperate with the male head on the inner side near the second reinforcing plate, and a reinforcing protrusion corresponding to the position of the positioning groove and used to increase the strength of the first enclosure is provided in the second weight-reducing groove.

5. A reinforced connector for preventing loosening of plugging as claimed in claim 1, characterized in that: A plurality of positioning pins for preventing the plastic body from moving horizontally and a plurality of spring buckles for preventing the plastic body from moving vertically are arranged at the bottom of the plastic body; the spring buckles are elastic and are distributed on both sides of the bottom of the plastic body, and the spring buckles include a tip arranged at the bottom and a clamping protrusion arranged on the upper part of the tip.

6. A reinforced connector for preventing loosening of plugging as claimed in claim 5, characterized in that: The PCB board is provided with a plurality of first positioning holes adapted to be installed with the positioning pins, a plurality of second positioning holes adapted to be installed with the spring buckles, and a plurality of welding holes for welding the first terminal group and the second terminal group.

7. A reinforced connector for preventing loosening of plugging as claimed in claim 1, characterized in that: The first terminal group includes a first welding portion welded to the PCB board, a first retaining portion extending vertically upward from the first welding portion, a second retaining portion extending vertically upward and horizontally bent from the first retaining portion, and a first contact arm bent 180° downward from the end of the second retaining portion and extending horizontally.

8. A reinforced connector for preventing loosening of plugging as claimed in claim 7, characterized in that: The second terminal group includes a second welding portion welded to the PCB board, a third retaining portion extending vertically upward from the second welding portion, a fourth retaining portion extending vertically upward and horizontally bent from the third retaining portion, and a second contact arm bent 180° upward from the end of the fourth retaining portion and extending horizontally.

9. A reinforced connector for preventing loosening of plugging as claimed in claim 8, characterized in that: The outer side of the plastic body is provided with a plurality of first accommodating grooves for fixing the first retaining part, the upper side is provided with a plurality of second accommodating grooves for fixing the second retaining part, the lower side is provided with a third accommodating groove for fixing the third retaining part, and the lower side is provided with a fourth accommodating groove for fixing the fourth retaining part; the plastic body is provided with a first limiting groove for limiting the end of the first contact arm and a second limiting groove for limiting the end of the second contact arm in the plug-in cavity.

10. A reinforced connector for preventing loosening of plugging as claimed in claim 9, characterized in that: The first reinforcing ribs and the second containing grooves are arranged in a staggered manner; the second reinforcing ribs and the fourth containing grooves are arranged in a staggered manner.

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