Contact piece and three-way socket assembly

Abstract

The present invention discloses a contact piece and a three-way socket assembly, wherein the contact piece comprises a contact assembly and a connecting strip assembly, wherein the contact assembly comprises a plurality of elastic contact cantilevers with the same extension direction, wherein each contact cantilever comprises a first section, a second section and a third section arranged in sequence, wherein the second section is convex, and the first section and the third section are both downwardly inclined; the connecting strip assembly is arranged around the contact assembly and connected to one end of the contact cantilever, and the other end of the contact cantilever is suspended for contacting the outer shell conductor; an angle is formed between the extension direction of the connecting strip assembly and the extension direction of each contact cantilever. The present invention is simple to plug and unplug, has high contact reliability, can greatly improve the plug-in life, and is convenient for three-way insertion of the plug.

Description

Technical Field

[0001] The invention belongs to the technical field of electric connectors, and in particular relates to a contact piece and a three-way socket assembly. Background Art

[0002] An electrical connector is a device used to connect two conductors so that current or signals can flow from one conductor to another. It is an indispensable component in electronic and electrical devices and is therefore widely used in many fields. The core component of an electrical connector is the contact, and the quality of the contact directly affects the performance of the electrical connector. However, most existing contacts have problems such as difficulty in plugging and unplugging, relatively low plug-in and unplugging life, difficulty in adapting to large current transmission, and low contact reliability, which affects the overall performance of the electrical connector. Summary of the invention

[0003] In view of the above problems, the present invention proposes a contact piece and a three-way jack assembly, which are simple to plug and unplug, have high contact reliability, can greatly improve the plug and unplug life, and are suitable for large current transmission.

[0004] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0005] In a first aspect, the present invention provides a contact element, comprising

[0006] The contact assembly comprises a plurality of elastic contact cantilevers extending in the same direction, each of the contact cantilevers comprises a first section, a second section and a third section arranged in sequence, the second section is convex, and the first section and the third section are both inclined downward;

[0007] A connecting bar assembly is arranged around the contact assembly and connected to one end of the contact cantilever, and the other end of the contact cantilever is suspended in the air for contacting the housing conductor;

[0008] There is an included angle between the extending direction of the connecting strip assembly and the extending direction of each contact cantilever.

[0009] Optionally, the cross-section of the connecting bar assembly is rectangular, and the extension direction of each contact cantilever is consistent with the diagonal direction of the connecting bar assembly.

[0010] Optionally, wavy contact cantilevers are provided on the contact assembly at four corners close to the connecting bar assembly, one end of the wavy contact cantilever is connected to the connecting bar assembly, and the other end is suspended for contacting the shell conductor.

[0011] Optionally, the cross-section of the second section is trapezoidal.

[0012] In a second aspect, the present invention provides a three-way jack assembly, including a spring and a shell conductor;

[0013] The spring sheet comprises two contact members as described in any one of the first aspects; the contact members are arranged opposite to each other, one end of the two contact members jointly forms an opening of the spring sheet, and the other end is connected via a connecting portion;

[0014] The shell conductor is hollow and wrapped outside the spring.

[0015] Optionally, a folding piece is provided on one end of the connecting strip assembly away from the connecting portion, and a clamping portion cooperating with the folding piece on the spring sheet is provided on the outer shell conductor.

[0016] Optionally, two connecting strips adjacent to the connecting portion on the connecting strip assembly are provided with latch tongues, and the outer shell conductor is provided with latch tongue holes matching with the latch tongues on the spring sheet.

[0017] Optionally, there is an angle between the plane where the latch tongue is located and the plane where the connecting strip assembly is located.

[0018] Optionally, limiting protrusions are provided around the sides of each connecting strip assembly that are close to each other.

[0019] Optionally, the cross section of the connecting portion is arc-shaped.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention provides a contact piece and a three-way socket assembly. By setting the contact cantilever in the contact piece to be tilted downward at both ends and convex in the middle, simple plugging and unplugging is achieved, high contact reliability, greatly improved plugging and unplugging life, adaptability to large current transmission, and convenience for three-way insertion of the plug.

[0022] Furthermore, the present invention also provides a latch and a folding piece at the end of the contact piece to prevent the contact piece from being separated from the housing conductor, thereby improving the structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein:

[0024] Figure 1 A schematic diagram of the structure of a spring piece according to an embodiment of the present invention;

[0025] Figure 2 A top view of a spring piece according to an embodiment of the present invention;

[0026] Figure 3 A top view of a spring piece according to an embodiment of the present invention;

[0027] Figure 4 A side view of a spring piece according to an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the structure of a shell conductor according to an embodiment of the present invention;

[0029] Figure 6 It is a schematic diagram of the overall structure of a three-way jack assembly according to an embodiment of the present invention;

[0030] Figure 7 A schematic diagram of the installation of a three-way jack assembly according to an embodiment of the present invention;

[0031] Figure 8 A schematic diagram of a plug-in inserting a three-way jack assembly according to an embodiment of the present invention;

[0032] In the figure:

[0033] 1-shell conductor, 11-tongue hole, 2-spring, 21-contact cantilever, 22-contact cantilever, 23-limiting protrusion, 24-flanged edge structure, 241-tongue, 25-folding piece, 3-insertion piece. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of protection of the present invention.

[0035] The application principle of the present invention is described in detail below in conjunction with the accompanying drawings.

[0036] Example 1

[0037] In an embodiment of the present invention, a contact element is provided, such as Figure 1-2 As shown, it specifically includes: a contact component and a connecting strip component;

[0038] The contact assembly comprises a plurality of elastic contact cantilevers 22 extending in the same direction, each contact cantilever 22 comprises a first section, a second section and a third section arranged in sequence, the second section is convex (i.e. the middle of the contact cantilever is bulging), the first section and the third section are both inclined downward, i.e. relative to the horizontal plane, the first section and the third section are both inclined below the horizontal plane, which is convenient for inserting the contact plug 3; in the specific implementation process, the number of the contact cantilevers 22 is set according to the actual situation;

[0039] The connecting bar assembly is arranged around the contact assembly and connected to one end of the contact cantilever 22. The other end of the contact cantilever 22 is suspended in the air for contacting the housing conductor 1.

[0040] There is an included angle between the extending direction of the connecting strip assembly and the extending direction of each contact cantilever 22 .

[0041] In a specific implementation of the embodiment of the present invention, the cross-section of the connecting strip assembly is rectangular, and includes four connecting strips connected in sequence. The shape of each connecting strip can be irregular. Preferably, Figure 2 As shown, the extension direction of each contact cantilever 22 is consistent with the diagonal direction of the connecting bar assembly, and the extension direction of each contact cantilever 22 may also be inconsistent with the diagonal direction of the connecting bar assembly; due to the insufficient length of the contact cantilever at the corner position, in the embodiment of the present invention, Figure 2 As shown, wavy contact cantilevers 21 are provided on the contact assembly at four corners close to the connecting bar assembly. One end of the wavy contact cantilever 21 is connected to the connecting bar assembly, and the other end is suspended for contacting the shell conductor 1.

[0042] In a specific implementation of the embodiment of the present invention, the cross section of the second section of the contact cantilever 22 is trapezoidal. In a specific implementation of the embodiment of the present invention, the cross section of the second section of the contact cantilever 22 can also be in other shapes, as long as the "convex" requirement is met, which is used to achieve electrical connection with the shell conductor 1, and can effectively improve contact reliability and reduce the difficulty of plugging in the board.

[0043] In the specific use process, the two contact pieces are usually used together, and the contact pieces are arranged back to back. One end of the two together forms the opening of the spring piece 2 for inserting the plug, and the other end is connected through the connecting part to form the spring piece 2. The spring piece 2 is used to be installed inside the shell conductor 1 to form a three-way jack assembly to achieve three-way insertion of the plug 3. For details, see Figure 3 and 4 One of the holes of the three-way jack is the opening, and the other two holes are openings on the spring piece 2 adjacent to the opening.

[0044] Example 2

[0045] The present invention provides a three-way jack assembly, such as Figure 5-7 As shown, it includes a spring piece 2 and a shell conductor 1;

[0046] The spring piece 2 comprises two contact members as described in any one of the first aspects; the contact members are arranged back to back, one end of the two together forms the opening of the spring piece 2, and the other end is connected by a connecting portion; in the specific implementation process, the cross section of the connecting portion can be set to an arc shape, and the entire spring piece 2 is U-shaped;

[0047] The shell conductor 1 is hollow and wrapped around the outside of the spring 2. Figure 5 .

[0048] In a specific implementation of the embodiment of the present invention, a folding piece 25 is provided at one end of the connecting strip assembly away from the connecting portion for guiding and limiting purposes, and a snap-fitting portion is provided on the outer shell conductor 1 for cooperating with the folding piece 25 on the spring sheet 2.

[0049] In a specific implementation of the embodiment of the present invention, the two connecting strips adjacent to the connecting portion on the connecting strip assembly are provided with a flange structure 24 and a tongue 241, and the shell conductor 1 is provided with a tongue hole 11 that matches the tongue 241 on the spring 2. When the tongue 241 is located in the corresponding tongue hole 11, it can effectively prevent the contact from being separated from the shell conductor 1; there is an angle between the plane where the tongue 241 is located and the plane where the connecting strip assembly is located, such as Figure 1 As shown, one end of the latch tongue 241 is connected to the connecting bar assembly, and the other end is in a tilted state relative to the connecting bar assembly, so that the spring sheet 2 is engaged in the shell conductor 1 .

[0050] In a specific implementation of the embodiment of the present invention, each connecting strip assembly is provided with a limiting protrusion 23 around the side close to each other, for limiting the shaking of the insert 3. In the specific implementation process, the number of the limiting protrusions 23 can be 4 or a multiple of 4, and the specific number can be set according to actual needs.

[0051] like Figure 7 As shown, during the specific installation process, the end of the spring 2 away from the opening is inserted into the shell conductor 1 along the inner wall of the shell conductor 1, and the spring 2 is pushed by external force until the tongue 241 on the spring 2 is located in the tongue hole 11 on the shell conductor 1, and the folding piece 25 is engaged with the engaging part on the shell conductor 1, so as to realize the assembly of the shell conductor 1 and the spring 2, and obtain the three-way jack assembly.

[0052] like Figure 8 As shown, in actual use, three inserting pieces 3 are respectively inserted between two oppositely arranged contact pieces in the spring piece 2 from three directions.

[0053] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A contact, characterized in that: include: The contact assembly comprises a plurality of elastic contact cantilevers extending in the same direction, each of the contact cantilevers comprises a first section, a second section and a third section arranged in sequence, the second section is convex, the first section and the third section are both inclined downward, and the ends of the first section and the third section connected to the connecting strip assembly are higher than the other ends; A connecting bar assembly is arranged around the contact assembly and connected to one end of the contact cantilever, and the other end of the contact cantilever is suspended in the air for contacting the housing conductor; There is an angle between the extension direction of the connecting strip assembly and the extension direction of each contact cantilever; The cross section of the connecting bar assembly is rectangular, and the extension direction of each contact cantilever is consistent with the diagonal direction of the connecting bar assembly; The contact assembly is provided with wavy contact cantilevers at four corners close to the connecting bar assembly. One end of the wavy contact cantilever is connected to the connecting bar assembly, and the other end is suspended for contacting the housing conductor.

2. A contact according to claim 1, characterized in that: The cross section of the second section is trapezoidal.

3. A three-way jack assembly, characterized in that: including shrapnel and shell conductor; The spring sheet comprises two contact members according to any one of claims 1 to 2; the contact members are arranged opposite to each other, one end of the two contact members jointly forms an opening of the spring sheet, and the other end is connected by a connecting portion; The shell conductor is hollow and wrapped around the outside of the shrapnel; A folding piece is provided on one end of the connecting strip assembly away from the connecting portion, and a clamping portion that matches the folding piece on the spring sheet is provided on the shell conductor; Two connecting strips adjacent to the connecting portion of the connecting strip assembly are provided with latch tongues, and the outer shell conductor is provided with latch tongue holes matched with the latch tongues on the spring sheet.

4. A three-way jack assembly according to claim 3, characterized in that: There is an angle between the plane where the latch tongue is located and the plane where the connecting strip assembly is located.

5. A three-way jack assembly according to claim 3, characterized in that: Limiting protrusions are arranged around the sides of each connecting strip assembly that are close to each other.

6. A three-way jack assembly according to claim 3, characterized in that: The cross section of the connecting portion is in an arc shape.

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