A waterproof connector for automotive power supply

Abstract

The present invention relates to the technical field of conductive connection, and particularly relates to a waterproof connector for an automotive power supply, which includes a female end, a male end and a sealing ring; the female end includes a first housing, and a first conductive terminal and paired and parallel distribution guide rods are arranged in the first housing; the male end includes a second housing, and paired and parallel distribution second conductive terminals are arranged in the second housing; the second conductive terminal includes a conductive part and a deformation part, the conductive part has two sections, both are parallel to the guide rod and are both fixed to the second housing, the deformation part connects the two conductive parts, and has an arc surface protruding towards one side perpendicular to the conductive part. The sealing ring is used to seal the connection end surface of the first housing and the second housing. In the initial state, the deformation parts of the paired two second conductive terminals protrude in the direction away from each other, reserving a larger installation space for the first conductive terminal, and then making the guide rod push the deformation part of the second conductive terminal to deform and abut against the first conductive terminal during the insertion process, reducing the deformation risk and wear degree.

Description

Technical Field

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

[0002] The waterproof power connectors used in automobiles are usually pin connectors (board-to-board connectors). The plastic bodies of the male and female ends of existing high-speed board-to-board connectors are respectively designed with anti-misinsertion and chamfers, allowing a certain amount of misalignment assembly. And the terminals are designed with a double-contact structure, which can improve the stability of contact conduction and ensure the minimization of contact resistance. However, since the pins of the female end are inserted into the pins of the male end in a point-contact state, it is easy to cause the pins to be squeezed and deformed, and it will also cause frictional wear of the pins, affecting the service life of the connector. Summary of the Invention

[0003] The present invention provides a waterproof connector for an automotive power supply to solve the problem that the pins are easily deformed and worn, affecting the service life.

[0004] A waterproof connector for an automotive power supply of the present invention adopts the following technical solutions:

[0005] A waterproof connector for an automotive power supply includes a female end, a male end, and a sealing ring; the female end includes a first housing, and a first conductive terminal and a pair of parallelly distributed guide rods are arranged inside the first housing; 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 outside the second housing; the male end includes a second housing, and a pair of parallelly distributed second conductive terminals are arranged inside the second housing; the second conductive terminal includes a conductive part and a deformation part, the conductive part has two sections, both of which are parallel to the guide rods and are fixed to the second housing, the deformation part connects the two conductive parts, and has a curved surface protruding toward one side perpendicular to the conductive part; in the initial state, the deformation parts of the two paired second conductive terminals protrude in opposite directions; when the first housing and the second housing are inserted along the extending direction of the guide rods, 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 rods push the deformation parts of the second conductive terminals to protrude toward the other side until they abut against the first conductive terminal; the sealing ring is arranged between the first housing and the second housing for sealing the connection end face of the first housing and the second housing.

[0006] Optionally, the deformation part includes a conductive frame connected to the two conductive parts and a hemispherical button elastic sheet nested in the conductive frame, and the hemispherical button elastic sheet protrudes toward one side and protrudes toward the other side when being pushed.

[0007] Optionally, the second conductive terminal is an integrally formed metal elastic sheet, the two conductive parts are located on the same plane, the deformation part protrudes toward one side, and protrudes toward the other side when being pushed.

[0008] Optionally, a plurality of wiring areas are provided inside the second housing, and the plurality of wiring areas are distributed in a matrix; a pair of second conductive terminals are provided in each wiring area; a first conductive terminal and its corresponding two guide rods form a wiring group, and there are a plurality of wiring groups, and each wiring group is correspondingly inserted into a wiring area.

[0009] Optionally, limiting grooves are opened on the side walls of the second housing between two adjacent wiring areas in the same column, and one end of the plurality of second conductive terminals in the same column close to the female end is connected by the same limiting rod, and the limiting rod 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.

[0010] Optionally, a barb is provided at the end of the first conductive terminal, and the end of the first conductive terminal provided with the barb extends out compared with 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; the barb pushes the deformation parts of the two second conductive terminals to protrude in opposite directions when the female end and the male end are separated, and then returns to the initial state.

[0011] Optionally, the end of the guide rod is a bevel surface, and the bevel surface is used to abut against the protruding side of the deformation part.

[0012] Optionally, the two paired second conductive terminals 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.

[0013] Optionally, 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 and the female end are plugged.

[0014] Optionally, the end of the second conductive terminal does not extend beyond the end of the second housing, the end of the first conductive terminal does not extend beyond the end of the first housing, and when the male end and the female end are plugged, the first housing is sleeved outside the second housing.

[0015] 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 opposite directions, reserving a large installation space for the first conductive terminal. During the plugging process of the male end and the female end, the guide rod is further used to push 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 along with the plugging of the first housing and the second housing, avoiding the first conductive terminal from being squeezed and deformed by the second conductive terminal due to inclined insertion. Moreover, the second conductive terminal deforms to abut against the first conductive terminal during the plugging process, which can reduce the length of the frictional contact between the first conductive terminal and the second conductive terminal and reduce the wear degree of both, so as to extend the service life of the connector.

[0016] Further, since the deformation parts of the two second conductive terminals reserve a relatively large installation space for the first conductive terminal in the initial state, in this application, both conductive parts of the second conductive terminal are fixed to the second housing, so as to prevent the two second conductive terminals from shaking due to external vibration during use, resulting in instantaneous disconnection between the first conductive terminal and the second conductive terminal. 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. Moreover, a relatively large top thrust is required for the deformed deformation part to return to the initial state, which can resist greater vibration impact and is more stable during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 FIG. is a schematic diagram of the overall structure of an embodiment of an automotive power supply waterproof connector of the present invention;

[0019] Figure 2 FIG. is a front view of the overall structure of an embodiment of an automotive power supply waterproof connector of the present invention;

[0020] Figure 3 is Figure 2 a sectional view taken along the A-A direction in;

[0021] Figure 4 is Figure 3 an enlarged view of part B in;

[0022] Figure 5 FIG. is a sectional view of the male end and the female end of an embodiment of an automotive power supply waterproof connector of the present invention after being plugged together;

[0023] Figure 6 FIG. is a schematic diagram of the structure of the second housing in an embodiment of an automotive power supply waterproof connector of the present invention;

[0024] Figure 7 FIG. is a sectional view of the male end of an embodiment of an automotive power supply waterproof connector of the present invention;

[0025] Figure 8 FIG. is a sectional view of the male end of another embodiment of an automotive power supply waterproof connector of the present invention.

[0026] In the figure: 100, female end; 110, first housing; 120, first conductive terminal; 121, barb; 130, guide rod; 200, male end; 210, second housing; 211, limiting groove; 220, second conductive terminal; 221, conductive part; 222, deformation part; 230, limiting rod; 240, conductive sheet; 300, sealing ring. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] An embodiment of an automotive power waterproof connector of the present invention, as Figures 1 to 6 shown, includes a female end 100, a male end 200, and a sealing ring 300.

[0029] The female end 100 includes a first housing 110. Inside the first housing 110, a first conductive terminal 120 and a pair of parallelly distributed guide rods 130 are provided; one end of the first conductive terminal 120 is located between the two guide rods 130 arranged in a pair 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.

[0030] The male end 200 includes a second housing 210. Inside the second housing 210, a pair of parallelly distributed second conductive terminals 220 are provided; the second conductive terminal 220 includes a conductive part 221 and a deformation part 222. The conductive part 221 has two sections, both of which are parallel to the guide rod 130. The deformation part 222 connects the two conductive parts 221 and has an arc surface protruding toward one side perpendicular to the conductive part 221; both of the two conductive parts 221 are fixed to the second housing 210, thereby ensuring that the deformation part 222 can only deform and protrude in the direction perpendicular to the conductive part 221 and preventing the overall second conductive terminal 220 from shaking under external vibration. In the initial state, the deformation parts 222 of the pair of second conductive terminals 220 protrude in opposite directions; when the first housing 110 and the second housing 210 are inserted along the extension direction of the guide rod 130, the pair of 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.

[0031] The sealing ring 300 is arranged between the first housing 110 and the second housing 210 to seal the connecting end face between the first housing 110 and the second housing 210.

[0032] In the initial state, the deformation parts 222 of the paired two second conductive terminals 220 protrude in opposite directions, reserving a relatively large installation space for the first conductive terminal 120. During the insertion process of the male end 200 into the female end 100, the guide rod 130 is used to push 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 along with the insertion of the first housing 110 and the second housing 210, avoiding the first conductive terminal 120 from being squeezed and deformed by the second conductive terminal 220 due to inclined insertion. Moreover, the second conductive terminal 220 deforms to abut against the first conductive terminal 120 during the insertion 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 wear degree of both.

[0033] Furthermore, since the deformation parts 222 of the two second conductive terminals 220 reserve a relatively large installation space for the first conductive terminal 120 in the initial state, in this application, both conductive parts 221 of the second conductive terminal 220 are fixed to the second housing 210 to prevent the two second conductive terminals 220 from shaking due to external vibration during use, resulting in instantaneous disconnection between 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. Moreover, a relatively large pushing force is required for the deformed deformation part 222 to return to the initial state, which can resist greater vibration impact and is more stable during use.

[0034] In this embodiment, as Figure 7 shown, the deformation part 222 includes a conductive frame connected to the two conductive parts 221 and a hemispherical key elastic sheet nested in the conductive frame. The hemispherical key elastic sheet protrudes to one side and protrudes to the other side when being pushed.

[0035] In some other embodiments, as Figure 8 shown, the second conductive terminal 220 is an integrally formed metal elastic sheet. The two conductive parts 221 are located on the same plane. The deformation part 222 protrudes to one side and protrudes to the other side when being pushed.

[0036] In this embodiment, a plurality of wiring areas are provided inside 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 form 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 is inserted into the female end 100. 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 to other circuit elements.

[0037] In this embodiment, limiting grooves 211 are provided on the side walls of the second housing 210 between two adjacent wiring areas in the same column. One ends of the plurality of 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 grooves 211 of the wiring areas in the same column and is fixed in the limiting grooves 211; and the limiting rod 230 is made of an insulating material to prevent the second conductive terminals 220 in two adjacent wiring areas from being electrically connected.

[0038] In this embodiment, a barb 121 is provided at the end of the first conductive terminal 120, and the end of the first conductive terminal 120 provided with the barb 121 extends out compared with the guide rod 130. After the barb 121 passes over the deformation part 222 of the second conductive terminal 220, the guide rod 130 pushes the deformation part 222 to deform. When the male end 200 is separated from the female end 100, after the guide rod 130 moves to no longer limit the deformation part 222, the barb 121 pushes the deformation parts 222 of the two second conductive terminals 220 to protrude in opposite directions, so that the deformation part 222 returns to its initial state. When the barb 121 abuts against the deformation part 222, it can not only generate resistance to the separation of the male end 200 and the female end 100, but also push the deformation part 222 to recover the deformation when further applying force, so that the first conductive terminal 120 can be smoothly detached.

[0039] In this embodiment, the end of the guide rod 130 is a slope, and the slope is used to abut against the protruding side of the deformation part 222 and push the deformation part 222 to protrude to the other side, reducing the resistance when the male end 200 is inserted into the female end 100.

[0040] 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, preventing the first conductive terminal 120 and the second conductive terminal 220 from being damaged. A table surface is provided on the outer peripheral wall of one end of the second housing 210 for insertion. When the male end 200 is inserted into the female end 100, the first housing 110 is sleeved outside the second housing 210 and abuts against the table surface outside the second housing 210. Wherein, the sealing ring 300 is fixedly connected to the end face of the first housing 110 and abuts against the table surface outside the second housing 210 after the first housing 110 and the second housing 210 are sleeved together.

[0041] Before the male end 200 and the female end 100 of an automotive power waterproof connector of the present invention are inserted, in each wiring area of the male end 200, the deformation parts 222 of the paired two second conductive terminals 220 protrude in opposite directions. When the male end 200 is inserted into the female end 100, each wiring group of the female end 100 corresponds to a wiring area, the guide rod 130 of each wiring group fits against the side wall of a wiring area, guiding 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 towards the side close to the first conductive terminal 120 and abut against the first conductive terminal 120; until the first housing 110 moves to abut against the table surface of the second housing 210, the insertion of the male end 200 and the female end 100 is completed to achieve electrical connection. Wherein, 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 cooperation of the buckle and the hook is used to prevent the first housing 110 and the second housing 210 from loosening. The structures of the buckle and the hook are prior arts and will not be elaborated here. When the male end 200 and the female end 100 are separated, after the guide rod 130 first moves away from the deformation part 222, the barb 121 of the first conductive terminal 120 pushes the deformation parts 222 of the two second conductive terminals 220 to protrude towards the side away from the first conductive terminal 120, so that the second conductive terminal 220 returns to its initial state, and the first conductive terminal 120 can be smoothly removed.

[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall 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 first 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 portion and a deformable portion, the conductive portion has two sections, both are parallel to the guide rod and fixed to the second housing, the deformable portion connects the two conductive portions, and has an arc surface protruding to one side perpendicular to the direction of the conductive portion; in an initial state, the deformable portions 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 portion 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.

Images