Elastic connector

Abstract

The utility model discloses an elastic connector, which comprises an insulating shell, a conductive terminal and fixed plug-ins arranged at two ends of the insulating shell, and one end of each fixed plug-in is arranged on the outer side of the insulating shell. A containing groove with a first opening in one side is formed in the insulating shell, a second opening which is communicated with the containing groove and arranged opposite to the first opening is formed in the insulating shell, and first inserting grooves are formed in the positions, on the two sides of the first opening, of the insulating shell. The conductive terminal comprises a welding part and an elastic arm, a contact end is arranged at the free end of the elastic arm, one end of the elastic arm is connected with the welding part, the elastic arm at least comprises a bending force arm, and the two sides of the welding part are bent to form fixing parts. The elastic arm is arranged in the containing groove, the contact end penetrates through the second opening and is at least partially arranged on the outer side of the second opening, the welding part is located at the first opening, and the fixing part is arranged in the first inserting groove. The electric connector is simple in structure, convenient to produce and low in cost while realizing electric connection.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to an elastic connector. Background Art

[0002] At present, electronic devices are generally charged using pogo pin probes, which are small and mainly consist of an external cylinder, a spring disposed inside the external cylinder, and a probe with one end limited inside the outer cylinder. By using the external full-body limiter and cooperating with the spring, the advantage of the probe moving straight up and down can be achieved. However, the pogo pin probe has a precise structure, many parts, low production capacity, and is made of brass, which is expensive. When using pogo pin probes, multiple pogo pin probes are generally used side by side, thereby increasing the cost of the entire electronic device. In addition, during the installation of the pogo pin probe on the circuit board and the assembly of the electronic device, it is easy to scratch with other objects, affecting the stability of the electrical connection.

[0003] Therefore, the existing technology needs to be developed and improved. Utility Model Content

[0004] The utility model aims to provide an elastic connector for solving the problem of high cost caused by using pogo pin probes in existing electronic equipment charging.

[0005] The technical solution of the utility model is as follows: an elastic connector, comprising an insulating housing, a conductive terminal and a fixing plug-in arranged at both ends of the insulating housing, wherein one end of the fixing plug-in is at least partially placed outside the insulating housing;

[0006] The insulating shell has a receiving groove with a first opening on one side, the insulating shell has a second opening in communication with the receiving groove, and the second opening is arranged opposite to the first opening; the insulating shell has first plugging grooves on both sides of the first opening;

[0007] The conductive terminal includes a welding portion and an elastic arm, one end of the elastic arm is connected to the welding portion, a contact end is arranged on the free end of the elastic arm, the elastic arm includes at least one bending force arm, both sides of the welding portion are bent along the direction of the elastic arm to form a fixing portion; the elastic arm is placed in the accommodating groove, the contact end passes through the second opening and is at least partially placed outside the second opening, the welding portion is located at the first opening, and the fixing portion is placed in the first plug-in groove.

[0008] Furthermore, there are three bending levers, each of which includes a bending portion and a straight lever connected to one end of the bending portion; the bending directions of the bending portions on two adjacent bending levers are opposite; the bending portion in the bending lever close to the welding portion is connected to the welding portion, and the bending portions in the remaining bending levers are connected to the straight levers in the adjacent bending levers.

[0009] Furthermore, the fixing portion is interference-fitted with the first plug-in slot, or the fixing portions located on both sides of the welding portion are in an eight-shaped shape.

[0010] Furthermore, a card block is formed on the protrusion of the fixing portion, and a card slot for cooperating with the card block is provided on the side wall of the first plug-in slot, and the card block is placed in the card slot.

[0011] Furthermore, two opposite side walls of the insulating housing protrude outward to form a limit block, and the side wall of the insulating housing is provided with a second plugging groove above the limit block;

[0012] The fixing plug-in is in sheet shape, a limiting opening is provided on the fixing plug-in, one end of the fixing plug-in is bent to form a plug-in portion, the plug-in portion is placed in the second plug-in slot, and the limiting block is placed in the limiting opening.

[0013] Furthermore, the plug-in portion is interference-fitted with the second plug-in slot.

[0014] Furthermore, there are two plug-in parts, which are arranged at intervals, and the outer protrusions of the plug-in parts are formed with interference bumps, and the number of the first grooves is equal to the number of the plug-in parts.

[0015] Furthermore, a shrinkage groove is provided on the outer side wall of the insulating shell to prevent the insulating shell from shrinking due to the integral molding.

[0016] Further, when there is one conductive terminal, the shrinkage groove includes a first groove, and the first groove is located above the second plug-in groove;

[0017] When there are multiple conductive terminals, the number of the accommodating grooves is equal to the number of the conductive terminals; the shrinkage groove includes a second groove and a third groove, the second groove is located between two adjacent accommodating grooves and above the first plug-in groove, and the third groove is located above the second plug-in groove.

[0018] Furthermore, a positioning column is formed on the bottom protrusion of the insulating shell.

[0019] The beneficial effect of the utility model is that compared with the prior art, the conductive terminal of the utility model adopts an elastic force arm to realize the contact end can move up and down, and the structure is simple. And the conductive terminal is placed inside with the insulating shell to protect the conductive terminal. The insulating shell can be stably fixed on the circuit board by using a fixed plug-in. The circuit board and the insulating shell can be stably connected to the circuit board, thereby improving the conductivity of the conductive terminal and the circuit board. The entire elastic connector can be stably fixed on the circuit board to improve the connection reliability. Compared with the existing precise and compact POGO PIN probe structure, the utility model has a simple structure and is easy to produce. While achieving electrical connection, the cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 A three-dimensional diagram of another viewing angle of the present invention;

[0022] Figure 3 It is an exploded view of the utility model;

[0023] Figure 4 This is a structural diagram of the insulating housing of the utility model;

[0024] Figure 5 This is a bottom view of the insulating housing of the utility model;

[0025] Figure 6 This is a structural diagram of the conductive terminal of the utility model;

[0026] Figure 7 This is a structural diagram of the conductive terminal of the utility model from another perspective;

[0027] Figure 8 This is a structural diagram of the fixed plug-in of the utility model;

[0028] The reference numerals include: insulating shell 10; second opening 11; accommodating groove 12; first opening 13; first plug-in groove 14; limiting block 15; second plug-in groove 16; positioning column 18 baffle 19; conductive terminal 20; elastic arm 21; welding portion 22; contact end 23; fixing portion 24; fixing plug-in 30; limiting opening 31; plug-in portion 32; interference protrusion 33; reinforcement portion 34; second groove 171; third groove 172; chamfer 181; bending portion 211; straight force arm 212. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present utility model, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] See attached Figure 1-8 , an elastic connector in an embodiment of the utility model.

[0033] See attached Figure 1-3 The elastic connector includes an insulating housing 10, a conductive terminal 20 and a fixing plug-in 30. The fixing plug-in 30 is disposed at both ends of the insulating housing 10, and one end of the fixing plug-in 30 is at least partially disposed outside the insulating housing 10. When used in conjunction with a circuit board, the fixing plug-in 30 protruding from the outside of the insulating housing 10 can pass through a preset hole on the circuit board and be fixed by welding, thereby stably fixing the insulating housing 10 on the circuit board.

[0034] The insulating housing 10 has a receiving groove 12 with a first opening 13 on one side, and the insulating housing 10 has a second opening 11 in communication with the receiving groove 12. The second opening 11 is arranged opposite to the first opening 13, and the insulating housing 10 has first plugging grooves 14 on both sides of the first opening 13. The conductive terminal 20 includes a welding portion 22 and an elastic arm 21, one end of the elastic arm 21 is connected to the welding portion 22, a contact end 23 is arranged on the free end of the elastic arm 21, and the elastic arm 21 includes at least one bending force arm, and both sides of the welding portion 22 are bent along the direction of the elastic arm 21 to form a fixing portion 24.

[0035] When the conductive terminal 20 is installed on the insulating housing 10, the conductive terminal 20 with the contact end 23 is placed in the receiving groove 12 from the first opening 13, that is, the elastic arm 21 is placed in the receiving groove 12, the welding portion 22 is located at the first opening 13, and the contact end 23 passes through the second opening 11 and is at least partially placed outside the second opening 11, that is, the contact end 23 at least partially protrudes outside the insulating housing 10. The fixing portion 24 is placed in the first plug-in groove 14 to stably install the conductive terminal 20 on the insulating housing 10.

[0036] The conductive terminal 20 of the utility model adopts an elastic arm 21 with a bending force arm to realize that the contact end 23 can move up and down, and the structure is simple. And the conductive terminal 20 is placed inside in conjunction with the insulating housing 10, which plays a role in protecting the conductive terminal 20, preventing the conductive terminal 20 from being bumped and deformed or contacting other conductive parts to affect the use, etc. The insulating housing 10 can be stably fixed on the circuit board by using the fixing plug-in 30. The circuit board and the insulating housing 10 can be stably connected to the circuit board to improve the conductive performance of the conductive terminal 20 and the circuit board, and the entire elastic connector can be stably fixed on the circuit board to improve the connection reliability. Compared with the existing precise and compact POGO PIN probe structure, the utility model has a simple structure and is easy to produce. While achieving electrical connection, the cost is lower.

[0037] In the above embodiment, the welding portion 22 can be welded manually or on a circuit board using automated equipment, and the conductive terminal 20 can be formed by bending a sheet metal. The first plug-in slot 14 can be integrated with the receiving slot 12; or it can be independently opened with the receiving slot 12, that is, the insulating housing 10 is provided with a baffle 19 between the first plug-in slot 14 and the receiving slot 12. Figure 4 As shown, users can set it according to their needs and it is not limited here.

[0038] The fixing plug-in 30 protruding from the outside of the insulating housing 10 is located below or above the insulating housing 10, and the first opening 13 and the second opening 11 are respectively located at the bottom surface and the top surface of the insulating housing 10, and then, the insulating housing 10 is fixed by the fixing plug-in 30, and the contact end 23 is located at the top or bottom of the insulating housing 10. In other embodiments, the fixing plug-in 30 protruding from the outside of the insulating housing 10 can also be located below or above the insulating housing 10, and the first opening 13 and the second opening 11 are respectively located at the front side and the rear side of the insulating housing 10. In this case, the insulating housing 10 is fixed on the circuit board by the fixing plug-in 30, and the contact end 23 is located at the front side or the rear side of the insulating housing 10, so that the elastic connector of the utility model can be connected to other components, which is not limited here.

[0039] In the most preferred embodiment, refer to the attached Figure 6 and attached Figure 7 , there are three bending levers, each of which includes a bending portion 211 and a straight lever 212 connected to one end of the bending portion 211. The bending directions of the bending portions 211 on two adjacent bending levers are opposite, the bending portion 211 in the bending lever close to the welding portion 22 is connected to the welding portion 22, and the bending portions 211 in the remaining bending levers are connected to the straight lever 212 in the adjacent bending levers, that is, the shape of the welding portion 22 and the elastic arm 21 is serpentine when viewed from the side. The conductive terminal 20 with three bending lever structures can make the contact end 23 move straight up and down, so that the contact position of the contact end 23 remains unchanged when it contacts with other components, improve the stability of the contact end 23 contacting with other components, prevent the contact end 23 from tilting downward to change the contact position, and reduce the curvature of the bending portion 211 to reduce the elastic force. In other embodiments, the bending lever can also be one, two, four, etc., which are not limited here.

[0040] The contact end 23 is cylindrical, more specifically, the contact end 23 can be a tapered cylindrical shape, or a straight cylindrical shape, etc., which is not limited here. The opening size of the second opening 11 is adapted to or slightly larger than the cross-sectional size of the contact end 23, and the width or length of the straight force arm 212 with the contact end 23 is larger than the size of the second opening 11, so that the elastic arm 21 is limited in the accommodating groove 12.

[0041] In the above embodiment, the number of the first plug-in slots 14 is equal to the number of the fixing portions 24, that is, the two first plug-in slots 14 that cooperate with the fixing portions 24 on both sides of the welding portion 22 can be respectively located on the left and right sides or the front and rear sides of the receiving slot 12, which is not limited here. And when there are multiple conductive terminals 20, when the two first plug-in slots 14 are located on the left and right sides of the receiving slot 12, some of the first plug-in slots 14 are located between two adjacent receiving slots 12; when the two first plug-in slots 14 are located on the front and rear sides of the receiving slot 12, the first plug-in slots 14 used with the conductive terminals 20 are arranged in a straight line, such as Figure 5 shown.

[0042] The fixing portion 24 is interference-fitted with the first inserting slot 14 , thereby installing the conductive terminal 20 on the insulating housing 10 .

[0043] In other embodiments, the fixing portions 24 on both sides of the welding portion 22 are in an eight-shaped shape to form a clamping opening, and the fixing portions 24 on both sides form spring pieces, which are placed in the first plug-in slot 14 to clamp the insulating housing 10, thereby installing the conductive terminal 20 on the insulating housing 10. In other embodiments, a block (not shown in the figure) is formed on the protrusion of the fixing portion 24, and a slot (not shown in the figure) used to match the block is opened on the side wall of the first plug-in slot 14, and the block is placed in the slot, thereby installing the conductive terminal 20 on the insulating housing 10.

[0044] In the above embodiment, two opposite side walls of the insulating housing 10 protrude outward to form limit blocks 15 , and the side walls of the insulating housing 10 are provided with second insertion slots 16 above the limit blocks 15 .

[0045] See attached Figure 8 The fixed plug-in 30 is in the form of a sheet, and a limiting opening 31 is provided on the fixed plug-in 30. One end of the fixed plug-in 30 is bent to form a plug-in portion 32, and the plug-in portion 32 is placed in the second plug-in slot 16, and the limiting block 15 is placed in the limiting opening 31. Therefore, by inserting the plug-in portion 32 into the second plug-in slot 16, the position of the fixed plug-in 30 in the insulating housing 10 can be limited, so that the fixed plug-in 30 is inserted into the circuit board and welded, and the insulating housing 10 is installed on the circuit board. By sleeved on the limiting opening 31 on the limiting block 15, the cooperation between the fixed plug-in 30 and the insulating housing 10 can be made more reliable, and the stability of the installation of the insulating housing 10 and the circuit board can be improved.

[0046] Specifically, in one embodiment, when the fixing portion 24 is located on the left and right sides of the welding portion 22, that is, the first plug-in slot 14 used in conjunction with the fixing portion 24 is located on the left and right sides of the accommodating slot 12, and the second plug-in slot 16 is located above the first plug-in slot 14, thereby reducing the volume of the insulating shell 10.

[0047] The plug-in portion 32 is interference-fitted with the second plug-in slot 16 , so that the fixing plug-in 30 is fixed to the insulating housing 10 .

[0048] In other embodiments, there are two plug-in parts 32, and they are arranged at intervals, so that there can be a certain elasticity between the two plug-in parts 32, which is convenient for being squeezed and fixed with the side wall of the second plug-in slot 16. In order to improve the stability of the connection between the plug-in part 32 and the insulating housing 10, the outer protrusion of the plug-in part 32 is formed with an interference protrusion 33. Specifically, the number of second plug-in slots 16 can be equal to the number of plug-in parts 32, that is, there are two second plug-in slots 16 on each of the left and right side walls of the insulating housing 10. In other embodiments, there can be only one second plug-in slot 16 on the left and right side walls of the insulating housing 10, and the two plug-in parts 32 in a fixed plug-in 30 are placed in the same second plug-in slot 16, etc., which is not limited here.

[0049] In the above embodiments, referring to the attached Figure 4 The insulating housing 10 is a plastic housing, and a shrinkage groove is provided on the outer wall of the insulating housing 10 at a position corresponding to a thicker glue position. During the one-piece molding process of the insulating housing 10, the thick glue position is prone to shrinkage, which affects the yield rate of the insulating housing 10. Based on this, by providing a shrinkage groove, the problem of thick glue position in the insulating housing 10 can be avoided, and the shrinkage problem of the insulating housing 10 during one-piece molding can be prevented.

[0050] Specifically, when there is only one conductive terminal 20 and one end of the fixed plug 30 protrudes from below the insulating housing 10, the shrinkage groove includes a first groove (not shown in the figure), and the first groove is located above the second plug-in groove 16. When one end of the fixed plug 30 protrudes from above the insulating housing 10, the first groove is located below the second plug-in groove 16. By providing the first groove, the thickness of the glue position in the thickness direction of the insulating housing 10 where the second plug-in groove 16 is located can be reduced.

[0051] When there are multiple conductive terminals 20, the number of the accommodating grooves 12 is equal to the number of the conductive terminals 20. The shrinkage groove includes a second groove 171 and a third groove 172, and when the contact end 23 is located at the top of the insulating housing 10, the second groove 171 is located between two adjacent accommodating grooves 12 and above the first plug-in groove 14. When the contact end 23 is located on the side of the insulating housing 10, the second groove 171 is located between two adjacent accommodating grooves 12 and on one side of the first plug-in groove 14. By providing the second groove 171, the thickness of the glue position between the two adjacent accommodating grooves 12 can be reduced. When one end of the fixed plug-in 30 protrudes from the bottom of the insulating housing 10, the third groove 172 is located above the second plug-in groove 16 and is spaced apart from the second plug-in groove 16. When one end of the fixed plug-in 30 protrudes from the top of the insulating housing 10, the third groove 172 is located below the second plug-in groove 16 and is spaced apart from the second plug-in groove 16. By providing the third groove 172, the thickness of the glue position in the thickness direction of the insulating housing 10 where the second plug slot 16 is located can be reduced. By reasonably providing the shrinkage groove, the shrinkage problem of injection molding can be avoided while maintaining the reliability of the insulating housing 10, and the production yield of the insulating housing 10 can be improved.

[0052] In the above embodiment, two plug-in parts 32 on a fixing plug-in 30 are protruded to form a reinforcement part 34 on one side away from the receiving groove 12 , so as to enhance the structural reliability of the fixing plug-in 30 .

[0053] The insulating housing 10 is protruded to form a positioning column 18, and the positioning column 18 cooperates with the preset hole on the circuit board to realize the positioning of the insulating housing 10. The end of the positioning column 18 has a chamfer 181, which plays a guiding role and facilitates the positioning column 18 to be placed in the preset hole on the circuit board.

[0054] The above is only an implementation method of the present invention. It should be pointed out that a person skilled in the art can make improvements without departing from the inventive concept of the present invention, but these improvements are all within the protection scope of the present invention.

Claims

1. An elastic connector, characterized in that: It includes an insulating shell, a conductive terminal and a fixing plug-in arranged at both ends of the insulating shell, wherein one end of the fixing plug-in is at least partially placed outside the insulating shell; The insulating shell has a receiving groove with a first opening on one side, the insulating shell has a second opening in communication with the receiving groove, and the second opening is arranged opposite to the first opening; the insulating shell has first plugging grooves on both sides of the first opening; The conductive terminal includes a welding portion and an elastic arm, one end of the elastic arm is connected to the welding portion, a contact end is arranged on the free end of the elastic arm, the elastic arm includes at least one bending force arm, both sides of the welding portion are bent along the direction of the elastic arm to form a fixing portion; the elastic arm is placed in the accommodating groove, the contact end passes through the second opening and is at least partially placed outside the second opening, the welding portion is located at the first opening, and the fixing portion is placed in the first plug-in groove.

2. The elastic connector according to claim 1, characterized in that: There are three bending lever arms, each of which includes a bending portion and a straight lever arm connected to one end of the bending portion; the bending directions of the bending portions on two adjacent bending lever arms are opposite; the bending portion in the bending lever arm close to the welding portion is connected to the welding portion, and the bending portions in the remaining bending lever arms are connected to the straight lever arms in the adjacent bending lever arms.

3. The elastic connector according to claim 1, characterized in that: The fixing portion is interference-fitted with the first plug-in slot, or the fixing portions located on both sides of the welding portion are in an eight-shaped shape.

4. The elastic connector according to any one of claims 1 to 3, characterized in that: A card block is formed on the protrusion of the fixing portion, and a card slot used to cooperate with the card block is opened on the side wall of the first plug-in slot, and the card block is placed in the card slot.

5. The elastic connector according to any one of claims 1 to 3, characterized in that: The two opposite side walls of the insulating housing protrude outward to form a limit block, and the side wall of the insulating housing is provided with a second plugging groove above the limit block; The fixing plug-in is in sheet shape, a limiting opening is provided on the fixing plug-in, one end of the fixing plug-in is bent to form a plug-in portion, the plug-in portion is placed in the second plug-in slot, and the limiting block is placed in the limiting opening.

6. The elastic connector according to claim 5, characterized in that: The plug-in portion is interference-fitted with the second plug-in slot.

7. The elastic connector according to claim 6, characterized in that: There are two plug-in parts, which are arranged at intervals, and the outer protrusions of the plug-in parts are formed with interference protrusions.

8. The elastic connector according to claim 5, characterized in that: The outer side wall of the insulating shell is provided with a shrinkage groove for preventing the insulating shell from shrinking due to the integral molding.

9. The elastic connector according to claim 8, characterized in that: When there is one conductive terminal, the shrinkage groove includes a first groove, and the first groove is located above the second plug-in groove; When there are multiple conductive terminals, the number of the accommodating grooves is equal to the number of the conductive terminals; the shrinkage groove includes a second groove and a third groove, the second groove is located between two adjacent accommodating grooves and above the first plug-in groove, and the third groove is located above the second plug-in groove.

10. The elastic connector according to claim 1, characterized in that: The bottom protrusion of the insulating shell is formed with a positioning column.

Images