Waterproof connector for automobile power supply

Abstract

The invention relates to the technical field of conductive connection, in particular to an automobile power supply waterproof connector which comprises a female end, a male end and a sealing ring. The female end comprises a first housing, and a first conductive terminal and paired guide rods which are distributed in parallel are arranged in the first housing; the male end comprises a second housing, and second conductive terminals which are distributed in pairs in parallel are arranged in the second housing; the second conductive terminal comprises a conductive part and a deformation part, the conductive part is provided with two sections which are parallel to the guide rod and are fixed on the second housing, and the deformation part is connected with the two conductive parts and is provided with an arc surface protruding towards one side perpendicular to the direction of the conductive parts. The sealing ring is used for blocking the connecting end face of the first housing and the second housing. In the initial state, the deformation parts of the two paired second conductive terminals protrude in the direction deviating from each other, a large installation space is reserved for the first conductive terminals, the guide rods push the deformation parts of the second conductive terminals to deform and abut against the first conductive terminals in the plugging process, and the deformation risk and the abrasion degree are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of conductive connection, and in particular to a waterproof connector for an automobile power supply. Background Art

[0002] The waterproof power connector used in automobiles is usually a pin connector (board-to-board connector). The existing high-speed board-to-board connector adopts anti-mis-insertion and chamfering design on the male and female plastic bodies, which can allow a certain amount of misaligned assembly, and the terminal adopts a double-contact structure design, which can improve the stability of contact conduction and ensure the minimum contact resistance. However, since the female pin and the male pin are plugged in a point contact state, it is easy to cause the pin to be squeezed and deformed, and it will cause friction and wear of the pin, affecting the service life of the connector. Summary of the invention

[0003] The invention provides an automobile power waterproof connector to solve the problem that the pin is easily deformed and worn, which affects the service life.

[0004] The automotive power waterproof connector of the present invention adopts the following technical solution: A car power waterproof connector, comprising a female end, a male end and a sealing ring; the female end comprises a first housing, wherein a first conductive terminal and a pair of parallel guide rods are arranged in the first housing; one end of the first conductive terminal is located between the two guide rods arranged in pairs and is parallel to the guide rods, and the other end passes through the first housing and extends to the outside of the second housing; the male end comprises a second housing, wherein a pair of parallel second conductive terminals are arranged in the second housing; the second conductive terminal comprises a conductive part and a deformable part, wherein the conductive part has two sections, both of which are parallel to the guide rods and fixed to the second housing, and the deformable part connects the two A conductive part, and having an arc surface protruding to one side perpendicular to the direction of the conductive part; in an initial state, the deformation parts of the two paired second conductive terminals protrude in directions away from each other; when the first cover shell and the second cover shell are plugged together along the extension direction of the guide rod, the paired second conductive terminals are located on both sides of the first conductive terminal and between the two guide rods corresponding to the first conductive terminal; the guide rod pushes the deformation part of the second conductive terminal to protrude to the other side until it abuts against the first conductive terminal; a sealing ring is arranged between the first cover shell and the second cover shell, and is used to seal the connecting end faces of the first cover shell and the second cover shell.

[0005] Optionally, the deformation portion includes a conductive frame connected to the two conductive portions and a hemispherical key spring embedded in the conductive frame, wherein the hemispherical key spring protrudes to one side and protrudes to the other side when pushed.

[0006] Optionally, the second conductive terminal is an integrally formed metal spring sheet, the two conductive parts are located in the same plane, the deformable part protrudes to one side, and protrudes to the other side when pushed.

[0007] Optionally, multiple wiring areas are provided in the second cover shell, and the multiple wiring areas are distributed in a matrix; a pair of second conductive terminals are provided in each wiring area; the first conductive terminal and its corresponding two guide rods constitute a wiring group, there are multiple wiring groups, and each wiring group is correspondingly inserted into a wiring area.

[0008] Optionally, a limiting groove is provided on the side wall of the second cover shell between two adjacent wiring areas in the same column, and the ends close to the female ends of multiple second conductive terminals in the same column are connected by the same limiting rod, which passes through the limiting grooves of the wiring areas in the same column and is fixed in the limiting grooves; and the limiting rod is made of insulating material.

[0009] Optionally, a barb is provided at the end of the first conductive terminal, and one end of the first conductive terminal provided with the barb extends out further than the guide rod, so that after the barb passes over the deformation portion of the second conductive terminal, the guide rod pushes the deformation portion to deform; when the female end and the male end are separated, the barb pushes the deformation portions of the two second conductive terminals to bulge in directions away from each other, thereby restoring to an initial state.

[0010] Optionally, the end of the guide rod is an inclined surface, and the inclined surface is used to abut against the protruding side of the deformation portion.

[0011] Optionally, two second conductive terminals in a pair in the same wiring area are fixed and electrically connected, and are connected to the same conductive sheet and then extend out of the second housing.

[0012] Optionally, the inner side wall of the wiring area of ​​the second cover shell is parallel to the guide rod and fits with the guide rod when the male end and the female end are plugged into each other.

[0013] Optionally, the end of the second conductive terminal does not exceed the end of the second cover shell, the end of the first conductive terminal does not exceed the end of the first cover shell, and when the male end and the female end are plugged together, the first cover shell is sleeved outside the second cover shell.

[0014] The beneficial effects of the present invention are as follows: in the initial state of the automotive power waterproof connector of the present invention, the deformation parts of the two paired second conductive terminals protrude in directions away from each other, reserving a larger installation space for the first conductive terminal; during the plug-in process of the male end and the female end, the guide rod pushes the deformation part of the second conductive terminal to deform and abut against the first conductive terminal; at this time, the first conductive terminal has been adjusted to be parallel to the conductive part of the second conductive terminal as the first cover shell and the second cover shell are plugged in, avoiding the first conductive terminal from being squeezed and deformed by the second conductive terminal due to the oblique insertion; and the second conductive terminal is deformed to abut against the first conductive terminal during the plug-in process, which can reduce the length of the frictional contact between the first conductive terminal and the second conductive terminal, reduce the degree of wear of both, and extend the service life of the connector.

[0015] Furthermore, since the deformation parts of the two second conductive terminals in the initial state reserve a large installation space for the first conductive terminal, the two conductive parts of the second conductive terminal are fixed to the second housing in the present application to avoid the two second conductive terminals shaking due to external vibration during use, causing the first conductive terminal and the second conductive terminal to be disconnected instantly. The two ends of the second conductive terminal are fixed, and the deformation part located between the two conductive parts is used to resist vibration. When the deformed deformation part returns to the initial state, a larger thrust force is required, which can resist greater vibration impact and is more stable when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of an automotive power waterproof connector of the present invention; Figure 2 It is a front view of the overall structure of an embodiment of an automotive power waterproof connector of the present invention; Figure 3 for Figure 2 Schematic diagram of the section along the AA direction; Figure 4 for Figure 3 The enlarged schematic diagram of point B in the middle; Figure 5 It is a cross-sectional view of an embodiment of an automotive power waterproof connector of the present invention after the male end and the female end are plugged in; Figure 6 It is a structural schematic diagram of a second cover shell in an embodiment of an automotive power waterproof connector of the present invention; Figure 7 It is a cross-sectional schematic diagram of a male end of an embodiment of an automotive power waterproof connector of the present invention; Figure 8 The figure is a cross-sectional schematic diagram of a male end of another embodiment of an automotive power waterproof connector of the present invention.

[0018] In the figure: 100, female end; 110, first cover shell; 120, first conductive terminal; 121, barb; 130, guide rod; 200, male end; 210, second cover shell; 211, limit groove; 220, second conductive terminal; 221, conductive part; 222, deformation part; 230, limit rod; 240, conductive sheet; 300, sealing ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] An embodiment of an automotive power waterproof connector of the present invention is as follows Figures 1 to 6 As shown, it includes a female end 100 , a male end 200 and a sealing ring 300 .

[0021] The female end 100 includes a first housing 110, in which a first conductive terminal 120 and paired and parallel guide rods 130 are arranged; one end of the first conductive terminal 120 is located between the two paired guide rods 130 and is parallel to the guide rods 130, and the other end passes through the first housing 110 and extends to the outside of the second housing 210 for connection with other circuit elements.

[0022] The male end 200 includes a second cover shell 210, and a second conductive terminal 220 is arranged in a pair and distributed in parallel in the second cover shell 210; the second conductive terminal 220 includes a conductive part 221 and a deformable part 222, the conductive part 221 has two sections, both parallel to the guide rod 130, the deformable part 222 connects the two conductive parts 221, and has an arc surface protruding to one side perpendicular to the direction of the conductive part 221; the two conductive parts 221 are fixed to the second cover shell 210, thereby ensuring that the deformable part 222 can only be deformed and protruded in a direction perpendicular to the conductive part 221, and avoiding the second conductive terminal 220 as a whole from shaking under external vibration. In the initial state, the deformation parts 222 of the two paired second conductive terminals 220 protrude in directions away from each other; when the first cover shell 110 and the second cover shell 210 are plugged in along the extension direction of the guide rod 130, the paired second conductive terminals 220 are located on both sides of the first conductive terminal 120 and between the two guide rods 130 corresponding to the first conductive terminal 120; the guide rod 130 pushes the deformation part 222 of the second conductive terminal 220 to protrude to the other side until it abuts against the first conductive terminal 120.

[0023] The sealing ring 300 is disposed between the first housing 110 and the second housing 210 to seal the connection end surfaces of the first housing 110 and the second housing 210 .

[0024] In the initial state, the deformation parts 222 of the two paired second conductive terminals 220 protrude in directions away from each other, reserving a larger installation space for the first conductive terminal 120. During the plug-in process of the male end 200 and the female end 100, the guide rod 130 pushes the deformation part 222 of the second conductive terminal 220 to deform and abut against the first conductive terminal 120. At this time, the first conductive terminal 120 has been adjusted to be parallel to the conductive part 221 of the second conductive terminal 220 as the first cover shell 110 and the second cover shell 210 are plugged in, so as to prevent the first conductive terminal 120 from being squeezed and deformed by the second conductive terminal 220 due to the oblique insertion. In addition, the second conductive terminal 220 is deformed to abut against the first conductive terminal 120 during the plug-in process, which can reduce the length of the frictional contact between the first conductive terminal 120 and the second conductive terminal 220 and reduce the degree of wear of both.

[0025] Furthermore, since the deformation parts 222 of the two second conductive terminals 220 in the initial state reserve a large installation space for the first conductive terminal 120, the two conductive parts 221 of the second conductive terminal 220 are fixed to the second housing 210 in the present application, so as to avoid the two second conductive terminals 220 shaking due to external vibration during use, causing instantaneous disconnection of the first conductive terminal 120 and the second conductive terminal 220. The two ends of the second conductive terminal 220 are fixed, and the deformation part 222 located between the two conductive parts 221 is used to resist vibration, and a larger thrust force is required when the deformed deformation part 222 returns to the initial state, which can resist greater vibration impact and is more stable during use.

[0026] In this embodiment, if Figure 7 As shown, the deformation part 222 includes a conductive frame connected to the two conductive parts 221 and a hemispherical key spring embedded in the conductive frame. The hemispherical key spring protrudes to one side and protrudes to the other side when pushed.

[0027] In some other embodiments, such as Figure 8 As shown, the second conductive terminal 220 is an integrally formed metal spring sheet, the two conductive parts 221 are located in the same plane, the deformable part 222 protrudes to one side, and protrudes to the other side when pushed.

[0028] In this embodiment, a plurality of wiring areas are provided in the second housing 210, and the plurality of wiring areas are distributed in a matrix; a pair of second conductive terminals 220 are provided in each wiring area; the first conductive terminal 120 and its corresponding two guide rods 130 constitute a wiring group, and there are a plurality of wiring groups, and each wiring group is correspondingly inserted into a wiring area. The inner side wall of the wiring area of ​​the second housing 210 is parallel to the guide rod 130, and fits with the guide rod 130 when the male end 200 and the female end 100 are plugged. Among them, the two second conductive terminals 220 in pairs in the same wiring area are fixed and electrically connected, and are connected to the same conductive sheet 240 and then extend out of the second housing 210, and the conductive sheet 240 extending out of the second housing 210 is used to connect with other circuit elements.

[0029] In this embodiment, a limiting groove 211 is provided on the side wall of the second cover shell 210 between two adjacent wiring areas in the same column, and the ends of the multiple second conductive terminals 220 in the same column close to the female end 100 are connected by the same limiting rod 230. The limiting rod 230 passes through the limiting groove 211 of the wiring area in the same column and is fixed to the limiting groove 211; and the limiting rod 230 is made of insulating material to avoid electrical connection between the second conductive terminals 220 of two adjacent wiring areas.

[0030] In this embodiment, a barb 121 is provided at the end of the first conductive terminal 120, and one end of the first conductive terminal 120 provided with the barb 121 extends out from the guide rod 130, so that after the barb 121 passes over the deformed portion 222 of the second conductive terminal 220, the guide rod 130 pushes the deformed portion 222 to deform, and when the male end 200 is separated from the female end 100, after the guide rod 130 moves to no longer restrict the deformed portion 222, the barb 121 pushes the deformed portions 222 of the two second conductive terminals 220 to protrude in directions away from each other, thereby restoring the deformed portion 222 to the initial state. When the barb 121 abuts against the deformed portion 222, it can not only generate resistance to the separation of the male end 200 and the female end 100, but also push the deformed portion 222 to restore the deformation when further force is applied, so that the first conductive terminal 120 is smoothly separated.

[0031] In this embodiment, the end of the guide rod 130 is an inclined surface, which is used to abut against the protruding side of the deformation part 222 to push the deformation part 222 to protrude to the other side, thereby reducing the resistance when the male end 200 and the female end 100 are plugged together.

[0032] In this embodiment, the end of the second conductive terminal 220 does not extend beyond the end of the second housing 210, and the end of the first conductive terminal 120 does not extend beyond the end of the first housing 110, so as to avoid damage to the first conductive terminal 120 and the second conductive terminal 220. A table is provided on the outer peripheral wall of one end of the second housing 210 for plugging. When the male end 200 and the female end 100 are plugged, the first housing 110 is sleeved outside the second housing 210 and abuts against the table outside the second housing 210. The sealing ring 300 is fixedly connected to the end face of the first housing 110, and abuts against the table outside the second housing 210 after the first housing 110 and the second housing 210 are sleeved.

[0033] Before the male end 200 and the female end 100 of the automotive power waterproof connector of the present invention are not plugged in, the deformation parts 222 of the two paired second conductive terminals 220 in each wiring area of ​​the male end 200 protrude in opposite directions. When the male end 200 and the female end 100 are plugged in, each wiring group of the female end 100 corresponds to a wiring area, and the guide rod 130 of each wiring group fits with the side wall of a wiring area to guide the first conductive terminal 120 to move between the corresponding two second conductive terminals 220. After the barb 121 of the first conductive terminal 120 passes through the deformation parts 222 of the two second conductive terminals 220, the guide rod 130 pushes the deformation parts 222 of the two second conductive terminals 220 to protrude toward the side close to the first conductive terminal 120 and abut against the first conductive terminal 120; until the first cover 110 moves to abut against the table of the second cover 210, the male end 200 and the female end 100 are plugged in to complete the electrical connection. In order to ensure the reliability of the connection between the first housing 110 and the second housing 210, a buckle and a hook can be respectively provided on the first housing 110 and the second housing 210, and the buckle and the hook are used to prevent the first housing 110 and the second housing 210 from being loosened. The structure of the buckle and the hook is a prior art and will not be described here. When the male end 200 and the female end 100 are separated, the guide rod 130 first moves away from the deformation part 222, and then the barb 121 of the first conductive terminal 120 pushes the deformation parts 222 of the two second conductive terminals 220 to protrude to the side away from the first conductive terminal 120, so that the second conductive terminal 220 returns to the initial state, and the first conductive terminal 120 can be smoothly removed.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A waterproof connector for automotive power supply, characterized in that: Including female end, male end and sealing ring; The female end includes a first housing, in which a first conductive terminal and paired and parallel guide rods are arranged; one end of the first conductive terminal is located between the two paired guide rods and is parallel to the guide rods, and the other end passes through the first housing and extends to the outside of the second housing; The male end includes a second housing, and a pair of second conductive terminals are arranged in parallel in the second housing; the second conductive terminal includes a conductive part and a deformable part, the conductive part has two sections, both are parallel to the guide rod and fixed to the second housing, the deformable part connects the two conductive parts, and has an arc surface protruding to one side perpendicular to the direction of the conductive part; in an initial state, the deformable parts of the two paired second conductive terminals protrude in directions away from each other; when the first housing and the second housing are plugged in along the extension direction of the guide rod, the paired second conductive terminals are located on both sides of the first conductive terminal and between the two guide rods corresponding to the first conductive terminal; the guide rod pushes the deformable part of the second conductive terminal to protrude to the other side until it abuts against the first conductive terminal; The sealing ring is arranged between the first cover shell and the second cover shell, and is used for sealing the connecting end surface of the first cover shell and the second cover shell.

2. The automotive power waterproof connector according to claim 1, characterized in that: The deformation part comprises a conductive frame connected with the two conductive parts and a hemispherical key spring embedded in the conductive frame. The hemispherical key spring protrudes to one side and protrudes to the other side when pushed.

3. The automotive power waterproof connector according to claim 1, characterized in that: The second conductive terminal is an integrally formed metal spring sheet, the two conductive parts are located in the same plane, the deformable part protrudes to one side, and protrudes to the other side when pushed.

4. The automotive power waterproof connector according to claim 1, characterized in that: A plurality of wiring areas are arranged in the second cover shell, and the plurality of wiring areas are distributed in a matrix; a pair of second conductive terminals are arranged in each wiring area; the first conductive terminal and its corresponding two guide rods constitute a wiring group, and there are a plurality of wiring groups, and each wiring group is correspondingly inserted into a wiring area.

5. The automotive power waterproof connector according to claim 4, characterized in that: A limiting groove is provided on the side wall of the second cover shell between two adjacent wiring areas in the same row, and the ends of multiple second conductive terminals in the same row close to the female end are connected by the same limiting rod, which passes through the limiting grooves of the wiring areas in the same row and is fixed in the limiting grooves; and the limiting rod is made of insulating material.

6. The automotive power waterproof connector according to claim 1, characterized in that: A barb is provided at the end of the first conductive terminal, and one end of the first conductive terminal provided with the barb extends outward from the guide rod, so that after the barb passes over the deformation part of the second conductive terminal, the guide rod pushes the deformation part to deform; when the female end and the male end are separated, the barb pushes the deformation parts of the two second conductive terminals to bulge in directions away from each other, and then restore to the initial state.

7. The automotive power waterproof connector according to claim 1, characterized in that: The end of the guide rod is an inclined surface, and the inclined surface is used to abut against the protruding side of the deformation part.

8. The automotive power waterproof connector according to claim 4, characterized in that: Two second conductive terminals in a pair in the same wiring area are fixed and electrically connected, and are connected to the same conductive sheet and then extend out of the second housing.

9. The automotive power waterproof connector according to claim 4, characterized in that: The inner side wall of the wiring area of ​​the second housing is parallel to the guide rod and fits with the guide rod when the male end is plugged into the female end.

10. The automotive power waterproof connector according to claim 6, characterized in that: The end of the second conductive terminal does not exceed the end of the second housing, the end of the first conductive terminal does not exceed the end of the first housing, and when the male end and the female end are plugged together, the first housing is sleeved outside the second housing.

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