Connector protection cover

Abstract

The utility model discloses a connector protection cover, a housing body is provided with a positioning cavity for accommodating a connector, the lower end of the positioning cavity is open, the connector is circumferentially stopped, the upper side surface of the stopping step is stopped on the bottom surface of the positioning cavity, and an elastic conductive terminal on the upper side of the connector can be completely accommodated in the positioning cavity. A buckling structure is formed on the side wall of a holding arm which can be movably installed on the shell body, the buckling structure can prevent the connector from falling out of an opening in the lower end of the positioning cavity, and the elastic structure provides elastic holding force for the holding arm to keep the buckling structure in the stopping position. The lower ends of the holding arms extending out of the lower side face of the shell body by a set distance can move under upward pressure, so that the buckle structures are separated from the blocking positions, and the length of the fool-proof positioning pins on the lower side face of the connector extending out of the lower side of the shell body is larger than the length of the lower ends of the holding arms extending out of the lower side of the shell body. And the elastic conductive terminals on the connector are prevented from being damaged when being assembled on a PCB (Printed Circuit Board).

Description

Technical Field

[0001] The utility model relates to a connector, in particular to a connector protection cover. Background Art

[0002] As electronic products become thinner and lighter, thin and light compression adapter plate connectors have emerged. This type of connector is extremely thin and can achieve rapid electrical connection and communication between two contact planes. This type of connector is mainly composed of a plate-shaped insulating main body and elastic conductive terminals distributed on the insulating main body. The two ends of the elastic conductive terminals elastically extend to both sides of the thickness direction of the insulating main body, and are used to make point-to-point contact with the contact planes on both sides to connect the upper and lower products. The elastic conductive terminals of this type of thin and light compression adapter plate connector are easily deformed and damaged by external forces. The elastic conductive terminals of this type of connector are easily squeezed and damaged by collision during storage, transportation and assembly with PCB boards. Utility Model Content

[0003] In order to make up for the above deficiencies, the utility model provides a connector protection cover, which can fully protect the elastic conductive terminals on the connector and does not affect the assembly of the connector and the PCB board.

[0004] The utility model adopts the following technical solution to solve the technical problem: a connector protection cover, including a shell body, a retaining arm and an elastic structure, wherein the plane where the connector is located is a horizontal plane, the side facing the PCB board when the connector is assembled is the lower side, the side facing away from the PCB board when the connector is assembled is the upper side, and the side wall perpendicular to the PCB board when the connector is assembled is the circumferential side wall, a positioning cavity with a lower end opening is formed on the shell body, the connector can be inserted into the positioning cavity of the shell body, a stop step is provided on the bottom surface of the positioning cavity, the upper side surface of the insulating main body of the connector stops on the stop step on the bottom surface of the positioning cavity, the circumferential side wall of the insulating main body of the connector stops on the circumferential inner wall surface of the positioning cavity, and the elastic conductive terminal on the upper side of the connector can be completely Accommodated in the positioning cavity, at least two retaining arms are movably installed on the shell body, the lower ends of the retaining arms extend out of the lower side of the shell body by a set distance, a snap structure is formed on the side wall of the retaining arm, and the elastic structure provides an elastic retaining force to the retaining arm, which enables the snap structure on the retaining arm to remain in a position that prevents the connector in the positioning cavity from moving downward, and when the lower end of the retaining arm is subjected to upward pressure, it can overcome the elastic retaining force of the elastic structure to enable the retaining arm to move on the shell body, thereby achieving the snap structure's disengagement from the obstruction to the downward movement of the connector, and the length of the fool-proof positioning pin on the lower side of the connector that is stopped and positioned in the positioning cavity and extending out of the lower side of the shell body is greater than the length of the lower end of the retaining arm extending out of the lower side of the shell body.

[0005] As a further improvement of the utility model, the retaining arm is an elastic cantilever structure, the upper end of which is integrally formed with the shell body to form the root of the elastic cantilever structure, and the lower end forms a free end that can elastically swing along the radial or tangential direction of the positioning cavity, and the root of the elastic cantilever structure forms an elastic structure.

[0006] As a further improvement of the present invention, the buckle structure on the side wall of the retaining arm is an inverted buckle structure with a lower end size smaller than an upper end size, and the inverted buckle structure can hook onto the step surface on the circumferential side wall of the insulating body of the connector.

[0007] As a further improvement of the present invention, the holding arms are symmetrically arranged on two opposite side walls in the length direction of the outer shell body, and the two opposite side walls of the outer shell body along its width direction are respectively provided with support arms in an elastic cantilever structure, and the lower end of the support arm is horizontally aligned with the lower end of the holding arm. When the lower end of the support arm is subjected to upward pressure, it can generate the same elastic deformation as the holding arm so that its lower end always maintains a horizontal alignment state with the lower end of the holding arm.

[0008] As a further improvement of the present invention, the holding arm and the supporting arm in their free states respectively form inclined extension structures with an angle with the horizontal plane in their respective swinging directions.

[0009] As a further improvement of the utility model, a guide groove with an open structure is formed on the shell body, and the upper ends of the holding arm and the support arm are respectively fixedly connected to the bottom surface of the guide groove to form a whole, and the holding arm and the support arm are respectively accommodated in their respective corresponding guide grooves and elastically swing along the guide grooves.

[0010] As a further improvement of the present invention, the guide groove extends from the bottom surface of the shell body toward the side wall of the shell body and forms an opening on the side wall of the shell body. The retaining arm and the support arm are both L-shaped structures, and the ends of the retaining arm and the support arm connected to the bottom surface of the guide groove form a weakened structure with reduced size.

[0011] As a further improvement of the utility model, the bottom surface of the positioning cavity of the shell body is further provided with foolproof avoidance holes for avoiding various foolproof positioning pins on the upper surface of the connector.

[0012] As a further improvement of the present invention, the side wall of the positioning cavity on the shell body includes a corner limit wall and a plane limit wall. The corner limit wall can be covered on the outside of the corner of the circumferential side wall of the connector, and the plane limit wall can be flat on the flat surface of the axial side wall of the connector, and one of the inner sides of the corner limit wall forms an anti-foolproof contact surface that matches the anti-foolproof chamfered portion of the connector.

[0013] The beneficial technical effect of the utility model is that the utility model accommodates the connector through the positioning cavity opened at the lower end of the shell body, and fixes and positions the connector through the stop step in the positioning cavity, the side wall of the positioning cavity and the snap structure on the holding arm arranged on the shell body, so that the connector is stably accommodated in the positioning accommodating cavity of the shell body, and the connector is protected by the shell body. When the connector is assembled with the PCB board, it is not necessary to remove the connector from the shell body in advance. The shell body can be directly held to insert the fool-proof positioning pin on the connector into the corresponding fool-proof positioning hole on the PCB board, and then the bottom surface of the shell body is pressed so that the lower end of the holding arm is subjected to the upward reaction force of the PCB board to produce The connector will automatically escape from the positioning cavity of the shell body and fall on the PCB board when the retaining arm loses the obstruction of the snap structure on the retaining arm, so as to realize automatic assembly with the PCB board. The utility model can effectively prevent the elastic conductive terminals on the connector from being damaged by being squeezed and collided during storage, transportation and assembly with the PCB board. After the connector is assembled on the PCB board, the connector protection cover can be quickly separated from the connector. When the connector protection cover is separated from the connector, it will not touch or damage the elastic conductive terminals on the surface of the connector, so the conduction stability of the elastic conductive terminals on the connector is fully guaranteed. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of a thin and light compression adapter plate connector;

[0015] Figure 2 This is a cross-sectional diagram of the structural principle of a thin and light compression transfer plate connector;

[0016] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0017] Figure 4 It is the first stereogram of the utility model;

[0018] Figure 5 It is a second stereoscopic view of the utility model;

[0019] Figure 6 for Figure 5 Middle EE section view;

[0020] Figure 7 for Figure 5 Middle FF section view;

[0021] Figure 8 It is a three-dimensional exploded view of the utility model and the connector;

[0022] Fig. 9 for Figure 8 Enlarged view of middle part B;

[0023] Fig.10 It is a three-dimensional state diagram of the connector in a protected state;

[0024] Fig.11 for Fig.10 Middle HH section view;

[0025] Fig.12 for Fig.11 Enlarged view of middle C;

[0026] Fig.13 for Fig.10 Middle II section view;

[0027] Fig.14 This is the main view of the connector in a protected state;

[0028] Fig.15 A three-dimensional diagram of the connector and PCB assembly in a protected state;

[0029] Fig.16 A three-dimensional exploded view showing the assembly position of the connector protection cover, connector and PCB board;

[0030] Fig.17 This is a diagram of the connector in a protected state before being assembled with the PCB board;

[0031] Fig.18 The diagram of the connector in a protected state being plugged in and assembled with the PCB board;

[0032] Fig.19 A schematic diagram showing a state in which the buckle is disengaged from the connector by pressing the pressing piece on the housing body;

[0033] Fig. 20 for Fig.19 Enlarged view of middle H section;

[0034] Fig.21 This is a diagram showing the connector protection cover and the connector separated state after the pressing piece is released;

[0035] Fig. 22 for Fig.21 Enlarged view of the middle G section. DETAILED DESCRIPTION

[0036] Embodiment: A connector protective cover comprises a shell body 1, a retaining arm 2 and an elastic structure, wherein the plane where the connector 4 is located is a horizontal plane, the side of the connector 4 facing the PCB board 3 when assembled is the lower side, the side of the connector 4 facing away from the PCB board 3 when assembled is the upper side, and the side wall perpendicular to the PCB board 3 when assembled is the circumferential side wall, a positioning cavity 11 with an open lower end is formed on the shell body 1, the connector 4 can be inserted into the positioning cavity 11 of the shell body 1, a stop step 12 is provided on the bottom surface of the positioning cavity 11, the upper side surface of the insulating main body 41 of the connector 4 stops on the stop step 12 on the bottom surface of the positioning cavity 11, the circumferential side wall of the insulating main body 41 of the connector 4 stops on the circumferential inner wall surface of the positioning cavity 11, and the elastic conductive terminal 42 on the upper side of the connector 4 can be completely accommodated in the positioning cavity In the cavity 11, at least two holding arms 2 are movably installed on the shell body 1, and the lower ends of the holding arms 2 extend out of the lower side of the shell body 1 by a set distance. A snap structure 21 is formed on the side wall of the holding arm 2, and the elastic structure provides an elastic retaining force to the holding arm 2. The elastic retaining force enables the snap structure 21 on the holding arm 2 to maintain a position state that prevents the connector 4 in the positioning cavity 11 from moving downward. When the lower end of the holding arm 2 is subjected to upward pressure, it can overcome the elastic retaining force of the elastic structure to enable the holding arm 2 to move on the shell body 1, thereby realizing that the snap structure 21 is free from the obstruction to the downward movement of the connector 4, and the length of the anti-fool positioning pin 43 on the lower side of the connector 4 in the positioning cavity 11 extending out of the lower side of the shell body 1 is greater than the length of the lower end of the holding arm 2 extending out of the lower side of the shell body 1.

[0037] When in use, the connector 4 is placed flat in the positioning cavity 11 of the shell body 1, the upper side wall of the connector 4 is limited by the bottom surface of the positioning cavity 11, the circumferential side wall of the connector 4 is limited by the circumferential inner side wall of the positioning cavity 11, and the bottom of the connector 4 is limited by the buckle structure 21, so that the connector 4 is fixed in the positioning cavity 11 of the shell body 1, and the positioning cavity 11 of the shell body 1 accommodates the connector 4 and protects the elastic conductive terminals 42 on the connector 4. Whether it is stored or transported, the elastic conductive terminals 42 on the connector 4 will not be squeezed or collided; when it is necessary to assemble the connector 4 onto the PCB board 3 When the connector 4 is connected to the outer shell body 1, it is only necessary to hold the outer shell body 1 of the connector 4 protective cover, and make the positioning cavity 11 of the outer shell body 1 open downward, first insert the foolproof positioning pin 43 of the connector 4 extending from the lower side of the outer shell body 1 of the connector 4 protective cover into the pin hole 31 of the PCB board 3, and then release the outer shell body 1, and the lower end of the holding arm 2 is pressed against the upper surface of the PCB board 3. At this time, the connector 4 is still fixed in the positioning cavity 11 of the outer shell body 1, and then apply downward pressure to the outer shell body 1, the lower end of the holding arm 2 will be subjected to the reverse pressure generated by the PCB board 3, so that the holding arm 2 overcomes the elastic holding force generated by the elastic structure and is outside The shell body 1 generates movement, and the buckle structure 21 on the side wall of the holding arm 2 moves synchronously with the holding arm 2. Finally, the buckle structure 21 moves to a position where it loses the blocking position on the lower side of the connector 4. The connector 4 loses the blocking limit of the buckle, and the connector 4 falls downward on the PCB board 3 under the circumferential guidance of the positioning cavity 11 of the shell body 1. At the same time, the foolproof positioning pin 43 on the lower side of the connector 4 is completely inserted into the pin hole of the PCB board 3, and the elastic conductive terminal 42 on the lower side of the connector 4 is in close contact with the conductive structure on the surface of the PCB board 3. At this time, since the connector 4 has fallen There is a distance between the connector 4 and the PCB board 3, and a height difference appears between the connector 4 and the buckle structure 21 on the retaining arm 2. After the shell body 1 is released, the retaining arm 2 is restored to its original state. The buckle on the retaining arm 2 has no contact with the connector 4 that has fallen out of the positioning cavity 11 of the shell body 1. At this time, the protective cover of the connector 4 can be directly removed. During the assembly process of the connector 4 and the PCB board 3, the elastic conductive terminals 42 on the connector 4 are always protected by the protective cover of the connector 4, and the workers will not touch the elastic conductive terminals 42 on the connector 4, thereby avoiding the elastic conductive terminals 42 from being damaged during the assembly process of the connector 4 and the PCB board 3.

[0038] The holding arm 2 is an elastic cantilever structure, the upper end of which is integrally formed with the shell body 1 to form the root of the elastic cantilever structure, and the lower end of which forms a free end that can elastically swing along the radial or tangential direction of the positioning cavity 11, and the root of the elastic cantilever structure forms an elastic structure. The holding arm 2 adopts a cantilever structure integrally formed on the shell body 1. This structure is simple and easy to manufacture. In addition, the holding arm 2 can also be a swing arm installed on the shell body 1 around a horizontal rotation axis. The elastic structure adopts a torsion spring, which provides an elastic retaining force for the swing arm to swing elastically, or the holding arm 2 adopts an arc-shaped spring sheet, and the lower end of the arc-shaped spring sheet is compressed to produce a bending deformation, so that the buckle structure 21 thereon produces synchronous movement to disengage from the blocking position of the connector 4. Such equivalent replacement structures that can be easily thought of by those skilled in the art based on this application all belong to the protection scope of this application.

[0039] The buckle structure 21 on the side wall of the holding arm 2 is an inverted buckle structure with a lower end size smaller than an upper end size, and the inverted buckle structure can hook the step surface 44 on the circumferential side wall of the insulating body of the connector 4. The buckle structure 21 adopts an inverted buckle structure, which can hook the step surface 44 on the circumferential side wall of the insulating body of the connector 4 to prevent the connector 4 from escaping from the opening of the positioning cavity 11. At the same time, the inclined surface of the inverted buckle structure forms a guide when the connector 4 is installed in the positioning cavity 11, which facilitates the connector 4 to be smoothly installed in the positioning cavity 11 of the housing body 1. In order to improve the smoothness of the buckle structure 21 to be separated from the step surface 44 on the insulating body of the connector 4 with the elastic swing of the holding arm 2, the inverted buckle structure can be made to contact the step surface 44 on the insulating body of the connector 4 through a small angle inclined surface.

[0040] The holding arms 2 are symmetrically arranged on two opposite side walls in the length direction of the shell body 1. The shell body 1 is also provided with support arms 5 in an elastic cantilever structure on two opposite side walls along its width direction. The lower end of the support arm 5 is horizontally aligned with the lower end of the holding arm 2. When the lower end of the support arm 5 is subjected to upward pressure, it can generate the same elastic deformation as the holding arm 2 so that its lower end always maintains a horizontal alignment state with the lower end of the holding arm 2. The two retaining arms 2 are symmetrically arranged on both sides of the length direction of the shell body 1, and the snap structures 21 on the two retaining arms 2 just correspond to the two step surfaces 44 on the axial side walls of the insulating body of the connector 4. In order to improve the stability of the shell body 1 after being compressed when the connector 4 is assembled with the PCB board 3, support arms 5 are respectively arranged on the two side walls in the width direction of the shell body, so that the support arms 5 and the retaining arms 2 form a stable support together. When the shell body 1 is subjected to downward pressure, the shell body 1 can remain in a stable state, so that the connector 4 remains horizontal and falls on the PCB board 3, preventing the shell body 1 from losing balance due to pressure, resulting in the connector 4 being unable to smoothly escape from the positioning cavity 11 of the shell body 1 and assembled on the PCB board 3. The retaining arms 2 may not be two symmetrically distributed on the shell body 1, but may be three, five or more evenly distributed on the shell body 1, or may be four, six or more symmetrically distributed on the shell body 1. When there are more than three retaining arms 2, the support arms 5 may not be arranged, and all of the above belong to the protection scope of the present application.

[0041] The holding arm 2 and the supporting arm 5 in their free states form inclined extension structures with an angle with the horizontal plane in their respective swinging directions.

[0042] Such a structure ensures that when the shell body 1 is subjected to downward pressure, the lower ends of the holding arm 2 and the support arm 5 are subjected to a vertical upward reverse force. The reverse force forms an angle with the holding arm 2 and the support arm 5, thereby forming a rotational torque on the holding arm 2 and the support arm 5, so that the holding arm 2 and the support arm 5 can smoothly produce elastic swing along the swing direction.

[0043] The housing body 1 is provided with a guide groove 13 with an open structure, and the upper ends of the holding arm 2 and the support arm 5 are respectively fixedly connected to the bottom surface of the guide groove 13 to form an integral body, and the holding arm 2 and the support arm 5 are respectively accommodated in the corresponding guide grooves 13 and elastically swing along the guide grooves 13. By setting the guide groove 13, the holding arm 2 and the support arm 5 can be avoided, so that the holding arm 2 and the support arm 5 can be integrally formed on the housing body 1, and at the same time, it guides the elastic swing of the holding arm 2 and the support arm 5, preventing the holding arm 2 and the support arm 5 from being offset during the elastic swing, resulting in the buckle structure 21 on the holding arm 2 and the connector 4 being unable to be smoothly released.

[0044] The guide groove 13 extends from the bottom surface of the shell body 1 toward the side wall of the shell body 1 and forms an opening on the side wall of the shell body 1. The retaining arm 2 and the support arm 5 are both L-shaped structures, and the ends of the retaining arm 2 and the support arm 5 connected to the bottom surface of the guide groove 13 form a weakened structure with reduced size.

[0045] The above structure can lengthen the holding arm 2 and the supporting arm 5 , increase their elastic swing amplitude, and ensure smooth release of the snap structure 21 from the insulating main body 41 of the connector 4 .

[0046] The bottom surface of the positioning cavity 11 of the housing body 1 is also provided with foolproof avoidance holes 14 for avoiding the foolproof positioning pins 43 on the upper surface of the connector 4 .

[0047] The side wall of the positioning cavity 11 on the shell body 1 includes a corner limiting wall 15 and a plane limiting wall 16, wherein the corner limiting wall 15 can be covered on the outer side of the corner of the circumferential side wall of the connector 4, and the plane limiting wall 16 can be flat against the flat surface of the axial side wall of the connector 4, and an inner side of the corner limiting wall 15 forms an anti-fool contact surface 151 that matches the anti-fool chamfer 45 of the connector. The anti-fool contact surface 151 in the corner limiting wall 15 corresponds to the anti-fool chamfer at the corner of the insulating body of the connector 4, so as to realize the anti-fool of the connector 4 when the connector 4 is assembled with the connector 4 shell, and ensure the accurate assembly position of the connector 4 and the PCB board 3.

Claims

1. A connector protective cover, characterized in that: The invention comprises a shell body (1), a retaining arm (2) and an elastic structure, wherein the plane where the connector is located is a horizontal plane, the side of the connector (4) facing the PCB board (3) when assembled is the lower side, the side of the connector (4) facing away from the PCB board when assembled is the upper side, and the side wall perpendicular to the PCB board when assembled is the circumferential side wall, a positioning cavity (11) with an opening at the lower end is formed on the shell body, the connector can be inserted into the positioning cavity of the shell body, a stop step (12) is provided on the bottom surface of the positioning cavity, the upper side surface of the insulating main body (41) of the connector stops on the stop step on the bottom surface of the positioning cavity, the circumferential side wall of the insulating main body of the connector stops on the circumferential inner wall surface of the positioning cavity, and the elastic conductive terminal (42) on the upper side of the connector can be completely accommodated in the positioning cavity. In the positioning cavity, at least two retaining arms are movably mounted on the shell body, the lower ends of the retaining arms extend out of the lower side of the shell body by a set distance, a snap structure (21) is formed on the side wall of the retaining arm, and the elastic structure provides an elastic retaining force to the retaining arm, the elastic retaining force enables the snap structure on the retaining arm to maintain a position state that prevents the connector in the positioning cavity from moving downward, when the lower end of the retaining arm is subjected to upward pressure, it can overcome the elastic retaining force of the elastic structure to enable the retaining arm to move on the shell body, thereby achieving the snap structure to disengage from blocking the downward movement of the connector, and the length of the anti-foolproof positioning pin (43) on the lower side of the connector that is stopped and positioned in the positioning cavity extending out of the lower side of the shell body is greater than the length of the lower end of the retaining arm extending out of the lower side of the shell body.

2. The connector protection cover according to claim 1, characterized in that: The retaining arm is an elastic cantilever structure, the upper end of which is integrally formed with the shell body to form the root of the elastic cantilever structure, and the lower end forms a free end that can elastically swing along the radial or tangential direction of the positioning cavity, and the root of the elastic cantilever structure forms an elastic structure.

3. The connector protection cover according to claim 2, characterized in that: The buckle structure on the side wall of the retaining arm is an inverted buckle structure with a lower end dimension smaller than an upper end dimension, and the inverted buckle structure can hook onto a step surface (44) on a circumferential side wall of the insulating body of the connector.

4. The connector protection cover according to claim 2, characterized in that: The holding arms are symmetrically arranged on two opposite side walls of the shell body in the length direction, and the two opposite side walls of the shell body in the width direction are respectively provided with support arms (5) in the form of elastic cantilever structures, the lower ends of the support arms are horizontally aligned with the lower ends of the holding arms, and when the lower ends of the support arms are subjected to upward pressure, the same elastic deformation amount as that of the holding arms can be generated so that the lower ends of the support arms and the lower ends of the holding arms are always kept in a horizontally aligned state.

5. The connector protection cover according to claim 4, characterized in that: The holding arm and the supporting arm in a free state respectively form an inclined extension structure with an angle with the horizontal plane in their respective swinging directions.

6. The connector protection cover according to claim 4, characterized in that: The housing body is formed with a guide groove (13) of an open structure, the upper ends of the holding arm and the support arm are respectively fixedly connected to the bottom surface of the guide groove to form a whole, the holding arm and the support arm are respectively accommodated in the corresponding guide grooves and elastically swing along the guide grooves.

7. The connector protection cover according to claim 6, characterized in that: The guide groove extends from the bottom surface of the shell body toward the side wall of the shell body and forms an opening on the side wall of the shell body. The retaining arm and the support arm are both L-shaped structures, and one end of the retaining arm and the support arm connected to the bottom surface of the guide groove forms a weakened structure with reduced size.

8. The connector protection cover according to claim 1, characterized in that: The bottom surface of the positioning cavity of the shell body is also provided with foolproof avoidance holes (14) for avoiding various foolproof positioning pins on the upper surface of the connector.

9. The connector protection cover according to claim 1, characterized in that: The side wall of the positioning cavity on the shell body includes a corner limiting wall (15) and a plane limiting wall (16), wherein the corner limiting wall can be wrapped around the outside of the corner of the circumferential side wall of the connector, and the plane limiting wall can be flat against the flat surface of the axial side wall of the connector, and an inner side of the corner limiting wall forms an anti-foolproof contact surface (151) that matches the anti-foolproof chamfered portion (45) of the connector.

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