Sliding contact type connector

Abstract

A sliding contact type connector comprises a base body and a contact pin, a concave cavity with an upward opening is formed in the base body, a mounting hole is formed in the bottom of the concave cavity in a penetrating mode, the contact pin is arranged corresponding to the mounting hole, and the contact pin is provided with a lower pin part matched with an external circuit board and an upper pin part located in the concave cavity. Two pairs of side surfaces of the upper needle part are respectively a clamping surface and a non-clamping surface, the clamping surface is an inclined surface which is gradually reduced from one end close to the bottom of the concave cavity to the other end, a stabilizing part is also arranged in the concave cavity, and the stabilizing part is arranged corresponding to each mounting hole and is matched with the corresponding non-clamping surface; the two side faces of the stabilizing part are each provided with a guide inserting groove or a guide inserting column extending to the bottom end. According to the utility model, the contact effect and the plugging effect are better when the socket is matched with an external plug, the overall plugging service life can reach 500 times, the service life is greatly prolonged, and the socket is also suitable for the design and development of electrical structures with different gears due to the different plugging degrees of the external plug in the use process.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a sliding contact type connector. Background Art

[0002] In addition to meeting general performance requirements, electrical connectors must also have good contact, reliable plugging and unplugging, and easy maintenance. Whether they work reliably directly affects the normal operation of the circuit and involves the safety of the entire host. The contact method between traditional connectors and external plugs is unreasonable. During use, the contact performance decays significantly, and the service life is basically around 50 plugging and unplugging times. Therefore, it is necessary to develop a connector with a long plugging and unplugging service life and good contact performance. Utility Model Content

[0003] In view of the above shortcomings of the prior art, the purpose of the utility model is to provide a sliding contact connector with good contact effect and long service life.

[0004] The technical solution adopted by the utility model to solve its technical problems is a sliding contact connector, including a seat body and a contact pin, the seat body is formed with a concave cavity opened upward, the bottom of the concave cavity is penetrated by a mounting hole, the contact pin is arranged corresponding to the mounting hole, the contact pin is provided with a lower needle portion cooperating with an external circuit board, and an upper needle portion located in the concave cavity, the two pairs of side surfaces of the upper needle portion are respectively set as clamping surfaces and non-clamping surfaces, the clamping surfaces are both inclined surfaces gradually decreasing from one end close to the bottom of the concave cavity to the other end, a stabilizing portion is also provided in the concave cavity, the stabilizing portion is arranged corresponding to each of the mounting holes and cooperates with the corresponding non-clamping surface, and both side surfaces of the stabilizing portion are also provided with guide slots or guide plugs extending to the bottom end.

[0005] The advantages of adopting the above technical solution are as follows: by setting a pair of clamping surfaces of the upper needle part as inclined surfaces that gradually decrease from the bottom end to the upper end, when the connector is mated with the external plug, the clamping force generated by the clamping piece in the external plug will gradually increase with the insertion, and by providing a stabilizing part, the relative position of the upper needle part in the concave cavity is guaranteed, and by providing a guide slot or a guide pin on the stabilizing part, the matching accuracy of the clamping piece and the upper needle part is guaranteed. Therefore, the contact effect and plugging and unplugging effect when the connector is mated with the external plug will be better, and the overall plugging and unplugging service life can also reach 500 times, which greatly improves the service life. In addition, during use, the power-on performance will be different due to the different insertion degrees of the external plug, and it can also be applied to the design and development of electrical structures of different gears, and the overall structural design is reasonable.

[0006] Furthermore, the top end of the clamping surface is set to be chamfered, and the inclination angle of the wall of the clamping surface below the chamfer is between 0.5° and 1°.

[0007] The advantages of adopting the above technical solution are: the inclination angle of the clamping surface is reasonably designed, so that the plugging and unplugging force generated by the external plug is moderate, the chamfer setting facilitates the accurate fit between the upper needle part and the clamping piece, the operator is convenient to assemble, and the plugging and unplugging feel is also good.

[0008] Furthermore, the contact needle is also provided with a middle needle part connecting the lower needle part and the upper needle part, and a limit block group is provided at the root of the middle needle part to form a limit with the bottom wall surface of the seat body, and the middle needle part is also provided with a thorn on the opposite side wall surface above the limit block group to be tightly matched with the mounting hole.

[0009] The advantages of adopting the above technical solution are as follows: the installation position of the contact pin and the seat body is limited by the setting of the limit block group and the clamping thorns, the structural setting is simple and reasonable, and the contact pin is installed from the outside to the inside, and the production operation will be relatively convenient.

[0010] Furthermore, the limit block group is provided with a first limit block and a second limit block, the length of the first limit block is greater than the length of the second limit block, and the lower needle portion is connected to the bottom wall surface of the first limit block so as to be staggered side by side with the waste belt at the center of the bottom wall surface of the middle needle portion.

[0011] The advantages of adopting the above technical solution are: using the first limit block and the second limit block of different lengths, and the lower needle part is formed on the first limit block, so that the waste belt and the lower needle part can be reasonably staggered side by side. During the automated insertion process, the force on the contact pin will be more stable, less likely to deform, and the structural design is reasonable.

[0012] Furthermore, the distance between the mounting hole and the front side wall of the cavity is smaller than the distance between the mounting hole and the rear side wall of the cavity, and an anti-fool plug is also provided on the rear side wall of the cavity.

[0013] The advantages of adopting the above technical solution are: the symmetry center of the width of the cavity and the symmetry center of the mounting hole are asymmetrical, and by providing an anti-mistake plug post, the occurrence of the external plug sliding in the wrong direction can be effectively prevented, thereby effectively avoiding malfunctions caused by the external plug and the connector being inserted in reverse.

[0014] Furthermore, a hollow portion is provided on the front side wall of the concave cavity, a clamping plate with a clamping slot is provided in the hollow portion, and an anti-dropping block cooperating with the clamping slot is also provided on the inner side wall of the clamping plate.

[0015] The advantages of adopting the above technical solution are: by arranging a snap-in plate in the hollow portion of the front side wall of the cavity, the connector can be effectively fixed to the external plug through the snap-in groove and the anti-drop block on the snap-in plate. At the same time, the snap-in plate will not occupy the use space of the external circuit board, and the structural design is reasonable.

[0016] Furthermore, the bottom of the seat body is provided with a mounting groove with two ends penetrating therethrough and corresponding to the mounting hole, the width of the mounting groove is consistent with the width of the mounting hole, and an auxiliary insertion structure cooperating with the contact pin is also provided in the mounting groove.

[0017] The advantages of adopting the above technical solution are: by forming a corresponding installation groove at the bottom of the seat body, on the one hand, the molding cost of the seat body is reduced, and on the other hand, the matching strength between the contact pin and the seat body can be improved, and the setting of the auxiliary plug-in structure can make the contact pin more convenient to match with the installation hole.

[0018] Furthermore, a positioning column is provided at the bottom of the seat body and matches with a positioning hole on the external circuit board.

[0019] Advantages of adopting the above technical solution: The setting of the positioning column can identify the direction of installation of the connector and the external circuit board, prevent the two from being connected incorrectly, improve the safety of use, and also improve the matching strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 Another view of the overall structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the seat structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the contact pin structure of the utility model;

[0024] Figure 5 This is another view of the contact pin structure of the present invention.

[0025] In the figure: 1-base, 2-contact needle, 3-concave cavity, 4-mounting hole, 5-lower needle part, 6-upper needle part, 7-clamping surface, 8-non-clamping surface, 9-stabilizing part, 10-guide slot, 11-middle needle part, 12-thorn, 13-first limit block, 14-second limit block, 15-waste belt, 16-anti-foolproof plug-in column, 17-clamping plate, 18-card slot, 19-anti-slip block, 20-mounting groove, 21-auxiliary plug-in structure, 22-positioning column. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the embodiments of the utility model and / or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work. In addition, the orientation only represents the relative position relationship between the components, not the absolute position relationship.

[0027] See also Figures 1 to 5 As shown, a sliding contact connector includes a base body 1 and three contact pins 2. A concave cavity 3 with an upward opening is formed on the base body 1. Three mounting holes 4 are penetrated at the bottom of the concave cavity 3. The contact pins 2 are arranged corresponding to the mounting holes 4. The contact pins 2 are used to realize the transmission of current. More specifically, the contact pins 2 are provided with a lower needle portion 5 that cooperates with an external circuit board and an upper needle portion 6 located in the concave cavity 3. Two pairs of side surfaces of the upper needle portion 6 are respectively set as clamping surfaces 7 and non-clamping surfaces 8. The clamping surfaces 7 are all inclined surfaces that gradually decrease from one end close to the bottom of the concave cavity 3 to the other end. The contact pin 2 adopts the clamping surface 7 of the upper needle part to achieve contact and cooperation with the clamping piece in the external plug. A stabilizing portion 9 is also provided in the concave cavity 3. The stabilizing portion 9 is arranged corresponding to each mounting hole 4 and cooperates with the corresponding non-clamping surface 8. More specifically, the stabilizing portion 9 and the mounting holes 4 are arranged in sequence at intervals, and the clamping surface 7 will protrude relative to the stabilizing portion 9. The stabilizing portion 9 prevents the upper needle portion 6 of the contact pin 2 from shaking significantly under the action of the external plug by limiting the non-clamping surface 8. Guide slots 10 or guide plugs extending to the bottom are also provided on both side surfaces of the stabilizing portion 9.

[0028] In the above scheme, by setting a pair of clamping surfaces 7 of the upper needle portion 6 as inclined surfaces that gradually decrease from the bottom end to the upper end, when the connector is mated with the external plug, the clamping force generated by the clamping piece in the external plug will gradually increase with the insertion, and by providing the stabilizing portion 9, the relative position of the upper needle portion 6 in the concave cavity 3 is guaranteed, and by providing a guide slot 10 or a guide pin on the stabilizing portion 9, the mating accuracy of the clamping piece and the upper needle portion 6 is guaranteed. Therefore, the contact effect and plug-in effect when the connector is mated with the external plug will be better, and the overall plug-in service life can also reach 500 times, which greatly improves the service life. In addition, during use, the power-on performance will be different due to the different insertion degrees of the external plug, and it can also be applied to the design and development of electrical structures of different gears, and the overall structural design is reasonable.

[0029] In this embodiment, the top of the clamping surface 7 is set to be chamfered, and the inclination angle of the wall of the clamping surface 7 below the chamfer is between 0.5° and 1°. With this setting, the inclination angle of the clamping surface 7 is reasonably designed, so that the plugging and unplugging force generated by cooperation with the external plug is moderate, and the chamfer setting facilitates the accurate cooperation between the upper needle part 6 and the clamping piece, which is convenient for the operator to assemble and has a good plugging and unplugging feel.

[0030] In the present embodiment, the contact pin 2 is further provided with a middle needle portion 11 connecting the lower needle portion 5 and the upper needle portion 6, and a limit block group and a clamping thorn 12 are provided on the middle needle portion 11. The contact pin 2 realizes the limitation of the installation position with the seat body 1 through the limit block combination and the clamping thorn 12. The structural setting is simple and reasonable. More specifically, the contact pin 2 is installed from the outside to the inside, that is, the contact pin 2 is installed and fixed from the bottom of the seat body 1, so the limit block group will be formed at the root of the middle needle portion 11 to form a limit with the bottom wall surface of the seat body 1, and the clamping thorn 12 is on the opposite side wall surface of the middle needle portion 11 above the limit block group and is tightly matched with the inner wall surface of the mounting hole 4. With this arrangement, the production operation will be relatively convenient.

[0031] In this embodiment, the limit block group is provided with a first limit block 13 and a second limit block 14, the length of the first limit block 13 is greater than that of the second limit block 14, the lower needle portion 5 is connected to the bottom wall surface of the first limit block 13, and is arranged side by side and staggered with the waste belt 15 at the center of the bottom wall surface of the middle needle portion 11. The first limit block 13 and the second limit block 14 of different lengths are used, and the lower needle portion 5 is formed on the first limit block 13, so that the waste belt 15 and the lower needle portion 5 can be reasonably staggered side by side. Compared with the method of connecting the waste belt 15 with the lower needle portion 5, during the automated insertion process, the overall force on the contact pin 2 will be more stable, less likely to deform, and the structural design is reasonable.

[0032] In this embodiment, the distance between the mounting hole 4 and the front side wall of the cavity 3 is smaller than the distance between the mounting hole 4 and the rear side wall of the cavity 3, and an anti-foolproofing pin 16 is also provided on the rear side wall of the cavity 3, that is, the width symmetry center of the cavity 3 and the symmetry center of the mounting hole 4 are asymmetrically structured, and by providing the anti-foolproofing pin 16, the occurrence of the external plug sliding in the wrong direction can be effectively prevented, thereby effectively avoiding malfunctions caused by the external plug and the connector being inserted in reverse.

[0033] In this embodiment, a hollow portion is provided on the front side wall of the concave cavity 3, and a clamping plate 17 with a clamping slot 18 is provided in the hollow portion, and an anti-dropping block 19 matching the clamping slot 18 is also provided on the inner side wall of the clamping plate 17. By arranging the clamping plate 17 in the hollow portion of the front side wall of the concave cavity 3, the clamping slot 18 and the anti-dropping block 19 on the clamping plate 17 are used to effectively fix the connector to the external plug. At the same time, the clamping plate 17 of this type will not occupy the use space of the external circuit board, and the structural design is reasonable.

[0034] In this embodiment, the bottom of the seat body 1 is provided with a mounting groove 20 with two ends through and for forming a corresponding mounting hole 4, that is, there are also three mounting grooves 20, and one of the above-mentioned mounting holes 4 is formed on the bottom surface of each mounting groove 20. By forming the corresponding mounting groove 20 at the bottom of the seat body, on the one hand, the molding cost of the seat body 1 is reduced, and on the other hand, the matching strength between the contact pin 2 and the seat body 1 can be improved. At the same time, an auxiliary plug-in structure 21 for matching the contact pin 2 is also provided in the mounting groove 20. The auxiliary plug-in structure 21 is four guiding inclined surfaces connecting the mounting groove 20 and the mounting hole 4. The setting of the auxiliary plug-in structure 21 enables the contact pin 2 to be matched with the mounting hole 4 more conveniently.

[0035] In this embodiment, a positioning column 22 is also provided at the bottom of the seat body 1 to cooperate with the positioning hole on the external circuit board. The setting of the positioning column 22 can identify the direction of installation of the connector and the external circuit board to prevent misconnection between the two, improve safety of use, and also improve the matching strength.

[0036] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A sliding contact connector, comprising a base (1) and a contact pin (2), wherein the base (1) is formed with a cavity (3) which is open upward, a mounting hole (4) is provided through the bottom of the cavity (3), the contact pin (2) is provided corresponding to the mounting hole (4), the contact pin (2) is provided with a lower pin portion (5) which cooperates with an external circuit board, and an upper pin portion (6) located in the cavity (3), characterized in that: The two pairs of side surfaces of the upper needle portion (6) are respectively configured as a clamping surface (7) and a non-clamping surface (8), and the clamping surfaces (7) are inclined surfaces that gradually decrease from one end close to the bottom of the cavity (3) to the other end. A stabilizing portion (9) is also provided in the cavity (3), and the stabilizing portion (9) is provided corresponding to each of the mounting holes (4) and cooperates with the corresponding non-clamping surface (8). Guide slots (10) or guide plugs extending to the bottom are also provided on both side surfaces of the stabilizing portion (9).

2. A sliding contact connector according to claim 1, characterized in that: The top end of the clamping surface (7) is configured as a chamfer, and the wall surface of the clamping surface (7) located below the chamfer has an inclination angle between 0.5° and 1°.

3. A sliding contact connector according to claim 2, characterized in that: The contact needle (2) is further provided with a middle needle portion (11) connecting the lower needle portion (5) and the upper needle portion (6); a limit block group is provided at the root of the middle needle portion (11) for forming a limit with the bottom wall surface of the seat body (1); and a clamping thorn (12) is further provided on the opposite side wall surface of the middle needle portion (11) located above the limit block group and is tightly matched with the mounting hole (4).

4. A sliding contact connector according to claim 3, characterized in that: The limit block group is provided with a first limit block (13) and a second limit block (14); the length of the first limit block (13) is greater than the length of the second limit block (14); the lower needle portion (5) is connected to the bottom wall surface of the first limit block (13) and is arranged in a staggered manner side by side with the waste belt (15) at the center of the bottom wall surface of the middle needle portion (11).

5. The sliding contact connector according to claim 1, characterized in that: The distance between the mounting hole (4) and the front side wall of the cavity (3) is smaller than the distance between the mounting hole (4) and the rear side wall of the cavity (3), and an anti-fouling plug post (16) is also provided on the rear side wall of the cavity (3).

6. The sliding contact connector according to claim 1, characterized in that: A hollow portion is provided on the front side wall of the cavity (3), a clamping plate (17) with a clamping slot (18) is provided in the hollow portion, and an anti-dropping block (19) cooperating with the clamping slot (18) is also provided on the inner side wall of the clamping plate (17).

7. The sliding contact connector according to claim 1, characterized in that: The bottom of the seat body (1) is provided with a mounting groove (20) with two ends passing through and corresponding to the mounting hole (4), the width of the mounting groove (20) being consistent with the width of the mounting hole (4), and an auxiliary insertion structure (21) cooperating with the contact pin (2) is also provided in the mounting groove (20).

8. The sliding contact connector according to claim 1, characterized in that: The bottom of the seat body (1) is also provided with a positioning column (22) which matches with a positioning hole on the external circuit board.

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